System and method for decoding digital video data. The decoding system employs hardware accelerators that assist a core processor in performing selected decoding tasks. The hardware accelerators are configurable to support a plurality of existing and future encoding/decoding formats. The accelerators are configurable to support substantially any existing or future encoding/decoding formats that fall into the general class of DCT-based, entropy decoded, block-motion-compensated compression algorithms. The hardware accelerators illustratively comprise a programmable entropy decoder, an inverse quantization module, a inverse discrete cosine transform module, a pixel filter, a motion compensation module and a de-blocking filter. The hardware accelerators function in a decoding pipeline wherein at any given stage in the pipeline, while a given function is being performed on a given macroblock, the next macroblock in the data stream is being worked on by the previous function in the pipeline.
G06F 9/38 - Concurrent instruction execution, e.g. pipeline or look ahead
H04N 19/12 - Selection from among a plurality of transforms or standards, e.g. selection between discrete cosine transform [DCT] and sub-band transform or selection between H.263 and H.264
H04N 19/122 - Selection of transform size, e.g. 8x8 or 2x4x8 DCTSelection of sub-band transforms of varying structure or type
H04N 19/129 - Scanning of coding units, e.g. zig-zag scan of transform coefficients or flexible macroblock ordering [FMO]
H04N 19/157 - Assigned coding mode, i.e. the coding mode being predefined or preselected to be further used for selection of another element or parameter
H04N 19/176 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object the region being a block, e.g. a macroblock
H04N 19/423 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by implementation details or hardware specially adapted for video compression or decompression, e.g. dedicated software implementation characterised by memory arrangements
H04N 19/44 - Decoders specially adapted therefor, e.g. video decoders which are asymmetric with respect to the encoder
H04N 19/60 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding
H04N 19/61 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding in combination with predictive coding
H04N 19/625 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding using discrete cosine transform [DCT]
H04N 19/70 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by syntax aspects related to video coding, e.g. related to compression standards
H04N 19/82 - Details of filtering operations specially adapted for video compression, e.g. for pixel interpolation involving filtering within a prediction loop
H04N 19/90 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using coding techniques not provided for in groups , e.g. fractals
H04N 19/91 - Entropy coding, e.g. variable length coding [VLC] or arithmetic coding
In some aspects, the disclosure is directed to methods and systems for intelligent aggregation and management of a plurality of network interfaces or connections. An intelligent connection manager may monitor connection and application communication parameters, and can control dynamic distribution, aggregation, or steering of traffic via different connections or pluralities of connections depending on bandwidth, congestion, or other factors. Connection management may be performed without hardware modification, and may handle connections with highly diverse parameters, such as different bandwidth or round trip latencies, different loss rates, different costs or power consumptions, or other factors. Management policies may be applied responsive to per-application and perconnection parameters to control distribution and/or aggregation of application requests and responses via a plurality of network connections.
For use in offloading traffic to a wireless local area network (WLAN) a user equipment (UE) receives from a wireless wide area network at least a first set of thresholds having different thresholds corresponding to different types of data to be offloaded. The UE utilizes the threshold corresponding to a given type of data to evaluate whether an access node operating in the WLAN is suitable for offloading data of the given type. Only if the evaluated access node is determined to be suitable will the UE use it for offloading, and only for data of the given type. In other non-limiting embodiments the first set of thresholds has different thresholds corresponding to different data-types for different categories (e.g., subscription levels) of the UE; and there may be a second set of thresholds with different thresholds corresponding to different classifications of different WLAN access nodes.
An algorithm is stored in a local memory of radio devices (a network access nodes/eNB and user equipments/UEs) which identifies a non-consecutive periodic series of radio frames. In a designated subframe of each of these non-consecutive periodic series of radio frames there is an indication of a downlink-uplink configuration of subframes to be used beginning in a predetermined subsequent radio frame (such as the next radio frame). This allows the network to change the DL-UL configuration more frequently than simply changing it in system information, with minimal signaling overhead. In specific embodiments the algorithm is SFN mod 2 = 0 and the bits for signaling the DL-UL configuration are scrambled with SI-RNTI. In one embodiment the signaling bits in the designated subframe and frame are for this DL-UL configuration purpose, while in other frames/subframes they are conventionally used for HARQ process number, downlink assignment index and/or transmit power control.
There are provided measures for control of aperiodic CQI reports. Such measures exemplarily comprise receiving a message comprising a request for quality measurement, obtaining information indicative of a type of resource for said quality measurement, and determining a resource for said quality measurement based on said information.
The present invention relates to methods, apparatuses and a computer program product for signaling for uplink demodulation reference signal. The invention includes causing reception of an uplink grant message at a user equipment, evaluating the uplink grant message, and determining, based on the result of the uplink grant message, whether to apply a full demodulation reference signal pattern or a reduced demodulation reference signal pattern.
The present invention concerns a method for controlling an unwanted timing offset introduced in samples generated by plural sample rate conversion modules of a radio receiving and/or transmitting device, the radio receiving and/or transmitting device interrupting the reception and/or the transmission with one radio access technology during a predetermined time duration, the said method causing the device to perform: - obtaining a system period, - defining a time duration for the interruption, based on an integer multiple of the system periods and shorter than the predetermined interruption duration.
At least one preamble is dedicated for interference probing. An aggressor access node (macro eNB) sends a command to a user equipment (UE) to transmit the dedicated preamble on a physical random access channel (PRACH). A victim access node (pico eNB) detects the transmitted preamble, and if this UE is the source of uplink interference to the victim access node it informs that to the macro access node which may then use interference coordination and interference cancellation to mitigate further uplink interference. In some embodiments the victim access node decides what is the transmit power for the UE to use for the dedicated preamble on the PRACH, and informs it to the macro access node which instructs the UE of the transmit power to use. In one example embodiment the victim access node calculates an offset from SRS/PUSCH transit power and informs the macro access node of the offset.
Power management is coordinated between first and second radio access nodes for channels of a first group to enable simultaneous uplink transmissions by a user equipment (UE) on first-group channels to both those nodes. This is done by, for each of the first-group channels, offsetting downward a maximum uplink transmit power on the respective first-group channel to be transmitted to one of those nodes by an amount reserved for the respective first-group channel to be transmitted to the other node. Uplink transmission opportunities (TX-OPs) of the UE on second-group channels are time-division duplexed (TDD) such that none of the UE's TX-OPs to the first access node for any second-group channel overlaps in time with the UE's TX-OPs to the second access node for the corresponding second-group channel. The network informs the UE via wireless signaling of patterns defining the TDD of the uplink TX-OPs for the second-group channels.
A method, apparatus and computer program product are provided in order to enhance network notification of secondary cell activation. In a first embodiment, the method includes receiving a secondary cell activation command, activating a secondary cell, and transmitting a PHR indicating activation of the secondary cell. In a second embodiment, the method includes receiving a secondary cell activation command, activating a secondary cell, and transmitting a signal indicating an expected time period until activation of the secondary cell. In a third embodiment, the method may optimize implicit SCell deactivation by receiving a secondary cell activation command, activating a secondary cell, receiving a PDCCH order for an uplink grant or a downlink assignment, and starting a secondary cell deactivation timer associated with the secondary cell in response to receiving the PDCCH order. A corresponding apparatus and computer program product are also provided.
There are provided measures for coordinated multi-point communication operations in flexible time division duplex communication. At a controller entity, such measures may exemplarily comprise measures for setting a time division duplex communication for multiple transmission points on the basis of a predefined uplink-downlink configuration with a subframe pattern of different subframe types for flexible time division duplex communication, wherein one or more fixed subframes are commonly configured for one of a downlink and an uplink transmission for the multiple transmission points and one or more flexible subframes are selectively configured for one of a downlink and an uplink transmission for at least one of the multiple transmission points, defining configuration information and issuing the configuration information to a user entity, which is served by at least one of the multiple transmission points, said configuration information being for configuring at least one operation for supporting the set time division duplex communication for the at least one of the multiple transmission points depending on the subframe type of a subject subframe, and controlling coordinated multi-point communication operations for the set time division duplex communication of the multiple transmission points for the subject subframe in accordance with the configuration information.
It is provided a method, comprising detecting, in a dormant mode, an assistance information, wherein the assistance information is received from a terminal device in a wake up procedure for causing the apparatus to switch into an active mode; deciding, based on the assistance information, whether or not the apparatus will switch into the active mode; indicating, to the user device, whether or not the apparatus will switch into the active mode.
The present disclosure relates to methods, apparatuses and a computer program product for connection release for dual connection. The present disclosure includes making, at a first network element, a local area connection release decision, and causing transmission of a local area connection release command to a user equipment and a second network element, wherein the user equipment is connected at the same time to both the first network element and the second network element.
A method, apparatus and computer program product are provided for establishing dual connectivity in a mobile network wherein the dual connectivity is to a mobile wireless network through both a macro cell and a small cell and for causing a data protocol indication to be sent to each data radio bearer during radio resource control (RRC) signaling. The data protocol indication signals a selected one of a set of data protocol architectures. A first data protocol architecture splits data above the PDCP and a second protocol architecture splits data between PDCP and RLC in the macro cell. The data protocol indication for the selected one of the data protocol architectures may be caused to be broadcast from the small cell for use in dual connectivity communication.
While a user equipment (UE) is attached to a wireless wide area network and operating on a wireless local area network for offloading traffic from the wireless wide area network, the UE initiates a switch back to the wireless wide area network from the wireless local area network and indicates to the wireless wide area network, via wireless signaling during a connection establishment or connection reestablishment or connection reconfiguration procedure, that the UE is switching back from the wireless local area network to the wireless wide area network. In several but not all embodiments the connection establishment procedure is a random access procedure and the wireless signaling indicating that the UE is switching back comprises a random access sequence reserved for UE switch back purposes.
A method, apparatus and computer program for protecting WLAN performance from IDC interference. An example method for use in an access point or station may comprise causing an indication of in device coexistence (IDC) capability to be provided, calculating at least one of a high in-device interference period and a low in-device interference period in an instance where a LTE e NB configures a TDM pattern, and causing an indication of a high in-device interference period and a low in-device interference period to be provided in an IDC capability information element.
A method for a victim base station to manage almost blank subframe (ABS) resources in a heterogeneous network deployment is disclosed and the method comprises categorizing each of one or more protected ABS resources as one of a primary protected ABS resource and a secondary protected ABS resource, the one or more protected ABS resources allocated by a target aggressor base station and one or more neighbor aggressor base stations; classifying each of one or more associated UEs as a fully interfered UE or a partially interfered UE; and scheduling the one or more ABS resources for the one or more associated UEs based on the category of each categorized ABS resource and classified status of each associated UE.
The present invention provides enhanced trigger and response procedure for Machine Type Communication devices. A downlink message in a physical downlink shared channel, which comprises an uplink grant indication is composed, a machine type communication identifier is configured, a receiving occasion for the message is determined, and transmission of the message to a network element is caused.
Hybrid automatic repeat request (HARQ) timing rules for carrier aggregation network deployments, where a primary and a secondary cell simultaneously utilize different time division duplex (TDD) uplink-downlink (UL-DL) subframe configurations, are re-used for flexible TDD UL-DL subframe configuration network deployments in which a same cell changes the TDD UL-DL configuration between first and second configuration periods. This re-use is accomplished in one embodiment by mapping a data radio resource in the first configuration period to a feedback radio resource in the second configuration period according to the re-used HARQ timing rules. Depending on uplink/downlink and the perspective is of the mobile device or the network, the mapped feedback radio resource is used to search for or to send HARQ feedback. Non-limiting examples re-use self-scheduling and cross-scheduling rules as well as regard the configuration in the first/second configuration period as the scheduled/scheduling cell of the HARQ timing rules.
There are provided measures for interference detection using a dedicated random access preamble, such as e.g. in layered heterogeneous network deployments. Such measures may exemplarily comprise measures for providing interference detection assistance information, relating to detection of a dedicated random access preamble which is specified for interference detection, from a first network communication entity to a second network communication entity, detecting reception of the dedicated random access preamble and the received power of the dedicated random access preamble at the second network communication entity, determining whether or not an interference-related operation is to be performed by the second network communication entity based on the obtained interference detection assistance information and the detected received power of the dedicated random access preamble, and executing interference detection on the basis of monitoring of the interference-related operation performed by the second network communication entity at the first network communication entity.
In terms of enhancements in relation to, scenarios allowing communication via multiple access systems an example aspect of the present invention encompasses an apparatus, comprising a controller, configured to cause control of a transceiver which is configured to communicate via at least two access systems, receive at least two access control commands from distinct sources, each access control command commanding access to at least one of the at least two access systems, detect a conflict between at least part of the at least two commands, and in case of a detected conflict, resolve the conflict by causing to withdraw at least part of one of the at least two access control commands based on a priority relation between the at least two conflicting access control commands. Further, an apparatus is encompassed which comprises a controller, configured to cause control of a transceiver which is configured to communicate via an access system with a terminal, cause to transmit an access control command to said terminal, said access control command commanding access to at least one of at least two access systems available for said terminal, cause to receive a report from the terminal regarding a detected conflict relating to said access control command. Likewise, corresponding methods and computer program products are addressed.
A method and apparatus for charging device to device traffic are provided. The method comprises the following steps: receiving a non-access stratum (NAS) connection establishment confirmation message comprising charging related information, and collecting charging data regarding a device to device communication based on said charging related information.
There is provided a method, comprising: deciding, by a first user terminal, to perform a group call to a group comprising a plurality of second user terminals; causing a transmission of a connection setup request to the group, wherein the connection setup request carries a first resource indication for determining a radio resource for a transmission of a connection setup response by each of the plurality of the second user terminals; causing a reception of at least one connection setup response carrying an identifier of the second user terminal that transmitted the connection setup response; and cause a transmission of a connection setup complete message to the group.
H04W 4/06 - Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]Services to user groupsOne-way selective calling services
Measures including, methods, apparatus, computer software and computer program products, for use in cell discovery in a cellular telecommunications network. A master information block (MIB) specific to a NCT secondary cell is generated at the new carrier type (NCT) secondary cell. The generated NCT secondary cell specific MIB is transmitted to at least one user equipment.
A method, apparatus, and computer program product are provided to manage wireless connection switching. In the context of a method, an Access Point (AP) may determine whether to direct at least one User Equipment (UE) connected to a local area AP to be connected to a macro AP and may cause, in an instance in which it is determined to direct the at least one UE to be connected to the macro AP, at least one signal to be transmitted to the at least one UE, the at least one signal being configured to direct the at least one UE to connect to the macro AP. The signal may take many different forms and may encode further information such as the portion of the traffic that should be served by the macro AP, a particular Physical Random Access Channel (PRACH) resource to be used by the UE, and/or other types of information and/or parameters.
The present invention addresses a method, apparatus and computer program product for enabling enhanced repetition radio resource management measurement mechanism in local area network with flexible time division duplex. For initiating a radio resource management measurement accomplished by a user equipment of a host cell and approaching a neighboring cell, the base station of the host cell transmits information indicating a radio resource management measurement subband and a cross link measurement subframe to the user equipment and not performing an uplink transmission, wherein the radio resource management measurement subband is an uplink prohibited subband that is being used in a downlink transmission of the neighboring cell, and the cross link measurement subframe is a subframe capable of being used for completing an uplink to downlink switch.
The present invention relates to methods, apparatuses and a computer program product for carrier allocation. The invention includes defining change occasion for a base station for changing a component carrier. The invention further includes receiving, at a processor, from a first base station, information regarding carrier interference severeness between the first base station and a second base station, wherein the carrier interference severeness comprises at least one of an expected separately usable protected carrier number, the number of user equipments located in a common coverage area of the first and second base station, and the downlink traffic load related to the user equipments, and allocating carrier pattern for the first base station based on the received information. Further, the invention includes composing, by a part of a first base station, a report including information regarding carrier interference severeness between the first base station and a second base station, wherein the carrier interference severeness comprises at least one of an expected separately usable protected carrier number, the number of user equipments located in a common coverage area of the first and second base station, and the downlink traffic load related to the user equipment, and causing transmission of the report to an allocating unit.
The present invention relates to methods, apparatuses and a computer program product for interworking between a wireless wide-area communication system and a wireless local-area communication system. The present invention includes composing, by a base station, a message including information indicating an interworking capability of the base station between a wireless wide-area communication system and a wireless local-area communication system, and causing transmission of the message to user equipment. Further, the present invention includes composing, by a user equipment, a message including information indicating an interworking capability of the user equipment between a wireless wide-area communication system and a wireless local-area communication system, and causing transmission of the message to a base station.
A method, apparatus and computer program for discovery of network devices and application user. An example method for use in an access point or station may comprise receiving a discovery request from an application, the application running thereon, the discovery request including at least one application level identifier, causing monitoring of a discovery channel for at least one device within a proximate distance, and upon discovery of a device associated with the application level ID, providing an indication to the application of the discovery of the device.
Embodiments of the invention provide a method, apparatus and computer readable memory for operating a network access node. The method begins by coordinating uplink/downlink subframe configurations between a serving network access node and a neighbor network access node. The method continues with receiving at the serving network access node from the neighbor network access node an indication of transmit power used by the neighbor access node for at least one downlink subframe of the neighbor access node's uplink/downlink subframe configuration and sending the indication of transmit power from the serving network access node to a user equipment served by the serving network access node.
In one exemplary embodiment of the invention, a method for controlling a wireless radio device to synchronize with a wireless system includes: receiving at least one communication from the wireless system, where the received at least one communication includes a plurality of different synchronization signals having a first primary synchronization signal, a first secondary synchronization signal, a second primary synchronization signal and a second secondary synchronization signal; and synchronizing with the wireless system using the second primary synchronization signal and the second secondary synchronization signal.
There is proposed a mechanism for cell identification or discovery. The cell transmits a control signal for identification which is received and processed by a UE. Depending on the operation state of the cell, which is one of an active state and a dormant state, the control signal is configured according to a first type of identification signaling for the active state and a second type of identification signaling for the dormant state, wherein at least one of communication settings and parameters of the first type of the identification signaling is different to the second type of identification signaling. Thus, a dormant cell state or an active cell state can be identified, wherein a communication quality measurement mode is adapted according to the detected cell state.
A method, apparatus and computer program product are provided in order to enhance buffer status reporting in a dual connectivity environment. In a first embodiment, the method establishes a resource quota configuration to use for allocating resources for each of the links connected to a communication device. In a second embodiment, the method may receive a BSR from the communication device, wherein the BSR requests uplink transmission of a first amount of data using only the first link, and requests uplink transmission of a second amount of data using any of the plurality of links, and transmitting a resource scheduling grant to the communication device based on the BSR. In a third embodiment, the method may provide the communication device with the resource quota for each link to optimize the BSR. A corresponding apparatus and computer program product are also provided.
A method, apparatus and computer program product are provided in order to support time switched data transmissions in a dual connectivity environment. The method may include receiving a signal to configure a semi-static predefined pattern for uplink (UL) transmissions by the communication device, wherein the predefined pattern ensures that the communication device communicates exclusively with one of the plurality of links at a time, and causing the communication device to transmit data to the plurality of links according to the predefined pattern. The signal may comprise a radio resource control (RRC) signal. The method may further include receiving a first link activation message from a first link of the plurality of links, the first link activation message indicating that the communication device will exclusively transmit data to the first link. A corresponding apparatus and computer program product are also provided.
During discontinue reception (DRX) operation of a mobile terminal of a wireless communications network, methods to ensure that user equipment is in an awake mode when a network node sends a scheduling grant on the physical downlink control channel (PDCCH). Dynamic scheduling (DS) and semi-persistent scheduling (SPS) grants may appear on PDCCH only once. One method defines every received downlink (DL) semi- persistent scheduling (SPS) signal in a subframe as active time in a configured DRX cycle and includes in said defining active time any occurrence of a DL assignment being configured for the subframe. A second method receives an indication of a downlink transmission or a configured downlink assignment configured for the current PDCCH subframe, starts a Hybrid Automatic Repeat request (HARQ) Round Trip Timer (RTT) whether UE is in active time or not, and stops a drx-RetransmissionTimer for the corresponding HARQ process whether UE is in active time or not.
A method, apparatus, and computer program product are provided to manage cell clustering and de-clustering. In the context of a method, a macro access point (AP) may initially communicate with two or more pico APs in a cell cluster. The macro AP may further determine and transmit one or more de-clustering parameters to the one or more pico APs in the cell cluster. The macro AP may then communicate with the two or more pico APs after they have joined new cell clusters. In the context of another method, a pico AP may receive at least one clustering parameter and at least one de-clustering parameter. The pico AP may further join a first cell cluster based at least in part on the at least one clustering parameter and determine, based at least in part on the at least one de-clustering parameter, whether to join another cluster. The pico AP may further join a second cell cluster based at least in part on the at least one clustering parameter.
A method, apparatus and computer program product are provided to facilitate selection of other user equipment as a relay node in order to establish connection to a network, such as following a radio link failure. In the context of a method for establishing a device-to-device connection, signals may be received from a plurality of user equipment that indicates that the user equipment have relay capabilities. The method also includes selecting a respective user equipment to serve as a relay to a network based upon one or more parameters. The method also establishes a connection with the respective user equipment that relays messages to the network.
A double structured codebook is described that has a wideband codebook portion C(W1) and a frequency-selective codebook portion C(W2). Portion C(W2) is characterised in that for at least one rank index RI, each codeword of C(W2) is uniquely distinguished over all other codewords of C(W2) by at least two beam selection vectors per layer. A device (UE, eNB, etc) utilises the at least two different beam selection 10 vectors per layer to uniquely select a codeword W2 from C(W2) (404); and constructs a precoder W from the selected codeword W2 and from another codeword W1 selected from the wideband codebook portion C(W1) for signalling channel conditions (406). An additional co-phasing term for ensuring orthogonality can be utilised with the beam selection vectors per layer to uniquely select the codeword from C(W2), and the two different beam selection vectors per layer correspond to different polarizations (410).
H04B 7/04 - Diversity systemsMulti-antenna systems, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
39.
ENHANCED DISCOVERY CHANNEL FOR INTERWORKING BETWEEN A CELLULAR WIDE-AREA COMMUNICATION SYSTEM AND A WIRELESS LOCAL-AREA COMMUNICATION SYSTEM
The present invention relates to methods, apparatuses and a computer program product for an enhanced discovery channel for interworking between a cellular wide-area communication system and a wireless local-area communication system. The present invention includes inserting, in a discovery channel, information indicating an interworking capability of a small cell base station between a cellular wide-area communication system and a wireless local-area communication system, and transmitting, by the base station, the discovery channel including the information to a user equipment located in the small cell.
It is provided a method, comprising checking if an indication is received that another cell device will remain in an active state and not enter into a dormant state for a time interval, wherein, in the dormant state, a cell specific reference signal is transmitted less frequently than in the active state; providing a request not to report a detection of an identification signal of the other cell device for the time interval if the indication is received.
There is proposed a mechanism for managing a power saving mode in a multiple connection type communication, such as a dual connection type communication with a first link between a UE and a macro cell and a second link between the UE and a LA cell. A power saving management procedure is proposed where for one link of the multiple connection type communication, such as the second link, a power saving mode is to be entered by the UE. In the power saving management procedure, a power saving control measure to be used for the second link is set by using information related to a power saving control measure used for the first link and/or a signaling conducted on the first link.
An apparatus and a method is provided, by which a first type cell is controlled, wherein a plurality of second type cells are located in the same area as the first type cell, wherein control signal transmission to at least one user equipment is carried out via the first type cell and data transmission to the at least one user equipment is carried out via one of a plurality of the second type cells, and handover of data transmission of a user equipment from a source cell being one of the plurality of second type cells to a target cell being another one of the plurality of second type cells is controlled. Moreover, also an apparatus and a method of, e.g., a user equipment are provided, by which a handover of data transmission from a source cell being one of the plurality of second type cells to a target cell being another one of the plurality of second type cells is performed, while maintaining control signal transmission with the first type cell.
The present invention relates to methods, apparatuses and a computer program product for an enhanced paging operation for power saving mode. The present invention includes receiving, at a user equipment, a signaling message from a base station, detecting, at the user equipment, that the base station, which has sent the signaling message, is in a sleeping mode based on the received signaling message, and adopting, by the user equipment, a predetermined paging operation, when it is detected that the base station is in the sleeping mode.
Systems and techniques for link failure management in multiple connection systems. Upon detection of a link failure with a local area base station during a dual connection mode in which the user device is connected to a macro base station and a local area base station, a user device sends a failure indication and a measurement results report for serving and neighboring base stations to its serving macro base station, and selects a response to the failure based at least in part on evaluation information received from the macro base station. Upon detection of a link failure with a macro base station, the user device determines whether to reconnect to the macro base station or a different macro base station and whether to reconnect with the original local area base station or a different local area base station.
Apparatuses, methods and computer program products for evaluating channel quality are provided. The apparatus comprises: a controller, configured to cause reception of data in a radio frame comprising at least a first and a second subframe set, wherein the data comprise reference signals of at least two reference signal types, cause verification of the presence of a first reference signal type per subframe set, and responsive to a failure of the verification, for the subframe set concerned, cause measurement of a reference signal of a second reference signal type in the subframe set in which the first reference signal type is not verified to be present.
A method, apparatus and computer program product are provided for enhancing frequency hopping with transmission time interval bundling. In this regard, a method is provided that includes extending a frequency hopping time-domain granularity for a Physical Uplink Shared Channel to a number of subframes greater than one subframe. The method may further include enabling provision of a generated indication identifying the extended frequency hopping time-domain granularity to at least one communication device to enable the communication device to perform frequency hopping for the number of subframes greater than one subframe. Corresponding apparatuses and computer program products are also provided.
In one embodiment an eNB configures a user equipment UE for a different type of reference signal other than regularly-spaced common reference signals CRSs, or a physical channel, to use for taking its radio resource management RRM measurements and/or radio link monitoring RLM measurements. In another embodiment a UE selects, using a predefined criteria (such as priority order among different reference signal types or predefined minimum threshold transmission density of a particular reference signal type), a different reference signal type other than regularly-spaced common reference signals, or a physical channel, for the RRM/RLM measurements. These are useful for example in EUTRAN Release 12 wherein the new carrier type may not have CRSs, or where the eNB can be in a dormant mode and not transmitting regularly-spaced CRSs.
A process, apparatus, and computer program product are described for providing flexible switching between legacy and new format downlink (DL) resource grants in a wireless communications network. The new format may be signaled by one bit or by two bits in the DL grant to indicate the length and format of physical downlink shared channel transmissions. During a flexible switching period from uplink (UL) to DL, a base station may signal both the legacy and new format resource grants to user equipment (UE). Once UE detects the two grants it may send an acknowledgement/negative acknowledgement (ACK/NACK) signal to activate the new DL grant using resources associated with the newly introduced grant. Alternatively, the base station may indicate a frequency shift Δf for ACK/NACK resources for UE to indicate readiness for new configuration.
There are provided measures for cell clustering based configuration of flexible time division duplex communication, such as e.g. in layered heterogeneous network deployments. Such measures may exemplarily comprise measures for specifying a desired uplink-downlink configuration for time division duplex communication in a subject cell of a cellular communication system, obtaining at least one desired uplink-downlink configuration for time division duplex communication in at least one neighboring cell of the cellular communication system, wherein the at least one neighboring cell and the subject cell belong to the same cell cluster, and defining an uplink-downlink configuration for time division duplex communication in at least the subject cell of the cell cluster out of a set of predefined uplink-downlink configurations with flexible subframe patterns for flexible time division duplex communication on the basis of the specified desired uplink-downlink configuration for the subject cell and the obtained at least one desired uplink-downlink configuration for the at least one neighboring cell.
Methods, apparatus and computer program products are provided for providing enhanced Physical Downlink Control Channel (e PDCCH) configurations which may, for example, be used in conjunction with a standalone new carrier type (SA-NCT). For example, a method is provided that includes, in an instance in which the UE is configured with a subframe subset in which the e PDCCH is not monitored, performing at least one of: (i) causing downlink control information corresponding to a previous downlink subframe of the subframe subset to be monitored; (ii) defining a control region comprising a non-zero number of beginning orthogonal frequency- division multiplexing (OFDM) symbols and, according to a demodulation reference signal (DM RS) pattern, a number of demodulation reference signal (DM RS) symbols; or (iii) defining an extended downlink subframe by causing the non-zero number of beginning OFDM symbols to be used jointly with a previous downlink subframe of the subframe subset.
Embodiments of the invention provide a method, apparatus and computer readable memory for controlling a user equipment (UE), comprising receiving at the UE on a first radio access technology (RAT) from a first access node radio resource control information for a second RAT. Then the UE performs at least one of a) uses the received radio resource control information to configure or reconfigure a module of the UE for communicating on the second RAT, and b) uses the module of the UE to report the received radio resource control information on the second RAT to a second access node.
Embodiments of the invention provide that in response to determining that the wireless local area network node (WLAN node) is an exposed node while having data to transmit to a peer WLAN node, the WLAN node that so determined transmits to the peer WLAN node a modified clear-to-send (CTS') message on a channel while the channel is reserved for a primary WLAN node pair. These embodiments further provide for transmitting data to the peer WLAN node only in response to receiving a clear-to-send CTS message from the peer WLAN node in reply to the transmitted modified CTS' message.
There are provided measures for information exchange for cellular non- cellular interworking such as for example LTE/UTRA-Wi Fi interworking. Such measures may exemplarily comprise measures for reporting, e.g. from an access point of a non-cellular local-area communication system or a terminal being served in a cellular wide-area communication system, information about at least one access point of the non-cellular local-area communication system to a radio access network level of the cellular wide- area communication system, and performing, at the radio access network level of the cellular wide-area communication system, traffic offloading management for at least one terminal being served in the cellular wide-area communication system to enable offloading of terminal-related traffic from the cellular wide-area communication system to the non-cellular local-area communication system on the basis of the obtained access point information.
The present invention addresses a method, apparatus and computer program product for enabling enhanced repetition transmission for downlink control signal to improve machine type communication coverage. One or a plurality of downlink control channel signaling window lengths is/are predefined, a start position of a window in which repetition of download control signal is allowed is determined based on the determined control channel signaling window length for each window length, and transmission of repetition of download control signal is caused at the determined start position in the respective obtained window length.
There are provided measures for inter-cell cross-link interference coordination in flexible time division duplex communication, such as e.g. in layered heterogeneous network deployments. Such measures may exemplarily comprise measures for setting up a time division duplex communication in a cell of a cellular communication system on the basis of an uplink-downlink configuration out of a set of predefined uplink-downlink configurations with flexible subframe patterns for flexible time division duplex communication, wherein at least one flexible subframe is configured for one of a downlink and an uplink communication, issuing an interference indication signaling comprising a target cell identifier identifying a target cell for inter-cell cross-link interference coordination with said cell in the at least one flexible subframe, and setting up a time division duplex communication in said target cell on the basis of an uplink-downlink configuration out of a set of predefined uplink-downlink configurations with flexible subframe patterns for flexible time division duplex communication, wherein the at least one flexible subframe is configured for the one of the downlink and the uplink communication, on the basis of the interference indication signaling.
A method, apparatus and computer program product are provided to support TDD UL/DL reconfiguration, such as to adapt to traffic within a respective cell. The method, apparatus and computer program product may identify one or more secondary cells (Scells) for flexible TDD configuration, cause a predetermined set of parameters to be set to specific values during carrier aggregation (CA) configuration signaling for each of one or more Scells indicating a candidate flexible time division duplex (TDD) configuration, and cause CA configuration signaling comprising the predetermined set of parameters to be provided to a mobile terminal. To change TDD configuration, an activation signal may be provided, activating a Scell associated with a second TDD UL-DL configuration. For a second change, a deactivation signal may be provided deactivating the Scell associated with the second TDD UL-DL configuration and a new activation signal may be provided.
A user equipment (UE) conducting machine-type communication (MTC) attempts to blindly decode a message it received using a pre-arranged and finite set of transport formats; and sends on an uplink radio resource feedback about the message, wherein the feedback is based on a result of the blind decoding. Each transport format of the pre-arranged set comprises a unique combination of modulation and coding scheme, physical resource block set;, and number of transmit repetitions. Prior to the message the pre-arranged set may be indicated to the UE in wireless signaling, or it may be specified in a radio standard. The set may be designated for downlink messages and a second set designated for uplink messages. Various embodiments are described for the uplink radio resource on which the feedback is sent, and conventional HARQ feedback is adapted for MTC in these teachings.
Systems and techniques for link condition reporting in multiple connection systems. A base station, such as a macro eNodeB (eNB) configures measurement objects and reporting objects for macro and local area links for a user device such as a user equipment (UE). The objects relating to the secondary links are configured for use when the user device is operating in a dual connection mode. Upon detection of a triggering event when the user device is in dual connection mode, the user device reports macro and secondary link information. In some embodiments of the invention, triggering may be based on events related to a specified frequency group, or may be direct measurements related to a specified frequency group.
A method, apparatus and computer program product are provided to support TDD UL/DL reconfiguration, such as to adapt to traffic within a respective cell. The method, apparatus and computer program product may identify the TDD UL/DL configuration to be utilized by a cell in a manner that reduces signaling overhead and error case handling, such as by implicit PHY signaling. The method, apparatus and compute program may identify a reference configuration for the HARQ timeline, either via explicit or implicit signaling, so as to reduce the loss because of a HARQ timeline change in conjunction with a TDD UL/DL reconfiguration.
In a mobile communication system, a TDD UL-DL configuration of a time division duplex uplink-downlink allocation to be used in the next period of a system information change is coded (S12) in fields of at least one frame relating to a paging message used to inform user equipments about a change of the TDD UL-DL configuration in the next period. The TDD UL-DL configuration is coded in reserved bits of specific fields of a downlink control channel for the paging message, or an information element is added to the paging message, the TDD UL-DL configuration is coded into the information element and an indication is included in the paging message that the information element containing the TDD UL-DL configuration is added.
A process, apparatus, and computer program product for enhancing coverage enhancement for network node signals targeted to machine type communication (MTC) devices such as automated wireless meters for water, electric and gas usage measurement. Two enhanced master information block (MIB) formats are defined. A first format contains all critical system information for common user equipment (UE) while the second format contains the critical system information plus the system information specific to MTC users. The second format provides sufficient system information necessary for MTC user equipment to initialize random access channel procedure. UE determines the eMIB format based on the detected primary synchronization signal/secondary synchronization signal (PSS/SSS) scheme and decodes the eMIB accordingly.
A user equipment UE sends in a first message on a random access channel at least one instance of a cyclic prefix CP and a configurable number of N instances of a sequence (N>1); then searches for a second message that replies to the first in a window defined by the first message and implicitly linked to the number N used in the first message. N can be configured by the UE based on its estimate of coverage improvement, and/or by the network and signaled via broadcast SIB/MIB. In one embodiment the first message has one CP and N sequences; in another the CP and sequence are placed in each of N transmission time intervals TTIs. Transmission of the first message begins in a TTI that is a function of a) a system frame number and the number N; and/or b) a time and frequency radio resource based on the number N.
The present invention relates to methods, apparatuses and a computer program product for channel state information report triggering. The present invention includes obtaining, at a user equipment, an uplink grant for a specified uplink subframe via downlink control information, obtaining, at the user equipment, a parameter indicating an uplink subframe offset, causing a transmission of a channel state information report in the specified uplink subframe, and causing a transmission of a channel state information report in additional subframes determined based on the specified uplink subframe and the parameter indicating the uplink subframe offset.
Apparatus, methods, and computer programs that selectively transmit one or more local area buffer status reports by a macro base station over a macro link or transmit a macro buffer status report by a local area access point over a local area link in a dual connection deployment scenario in response to a cross link buffer status report trigger. The apparatus, methods and computer programs may include several cross buffer status reporting triggers. The user equipment may trigger cross buffer status reporting in response or incidental to one or more measurement events. The user equipment may also trigger cross buffer status reporting in response to or incidental to a link failure. The user equipment may also trigger cross buffer status reporting in response to receiving a request from an eNB.
H04L 1/16 - Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
65.
SYSTEM AND METHOD TO ESTABLISH AND MAINTAIN CELL CLUSTER
A wireless communication method of establishing and maintaining a cell cluster comprising at least one cell configured to communicate with at least one UE (User Equipment), comprising detecting a broadcast beacon signal. The method further comprises, in response to an absence of the broadcast beacon signal, assuming the role of a cluster head of a cluster having a specific intra-cell identifier, and broadcasting a beacon signal. In response to detecting the broadcast beacon signal and an absence of an intra-cell identifier, continuing to transmit and receive using a prior duplex communication configuration. Further, in response to detecting the broadcast beacon signal and a presence of the intra-cell identifier, joining the cell identified by the detected intra-cell identifier, and setting its intra-cell identifier based on the detected intra-cell identifier.
Embodiments include methods for providing information enabling a communication device operating in a hetnet comprised of an aggressor cell and one or more overlaid victim cells utilizing a common frequency spectrum, to at least partially cancel an interfering signal transmitted from the aggressor cell in order to more accurately measure one or more signals transmitted from a victim cell. Embodiments include methods for configuring the aggressor cell with information related to overlaid victim cells in the aggressor's coverage area, and methods for configuring a victim cell with information related to the aggressor's interference within the victim's extended coverage area. Embodiments also include methods for receiving measurements of a signal transmitted from a victim cell, and methods for making such measurements on the victim's signal utilizing the aggressor cell interference information. Embodiments include network equipment or apparatus, user equipment or apparatus, and computer-readable media embodying one or more of these methods.
There is proposed a mechanism for conducting a resource allocation procedure. First, resource allocation information indicating an allocation of communication resources for the communication between a first network node and a second network node of a communication network is provided, e.g. in the form of resource allocation patterns or a reference resource allocation. After the resource allocation information is provided, a processing information element is sent in a downlink control information signaling. The processing information element identifies a processing to be conducted at the provided resource allocation information for determining resources to be used for the communication, e.g. in the form of an indication of a resource allocation pattern to be selected or in the form of an indication how the allocated resources are to be modified.
In a method for limiting the maximum transmit power of devices operating in a wireless network, each device supporting one of plural sets of transmit power reduction capabilities, a first message comprising a value of a first parameter associated with a first set of capabilities and a value of a second parameter associated with a second set of capabilities, wherein the second set comprises more capabilities than the first set, is transmitted (400). A signal associated with a device's reception of the first message is received (410). A capability enquiry is transmitted to the device (415). Capability information comprising an indication of whether the device supports the value of the second parameter is received (420). A second message comprising a value of the first parameter associated with the second set of capabilities is transmitted upon receiving an indication that the device supports the value of the second parameter(450).
H04W 52/24 - TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters
H04W 52/36 - Transmission power control [TPC] using constraints in the total amount of available transmission power with a discrete range or set of values, e.g. step size, ramping or offsets
H04W 52/14 - Separate analysis of uplink or downlink
A method comprising monitoring if a charging event related to a proximity service performed by an apparatus performing the method occurs, collecting the occurred at least one charging event, and forwarding the collected at least one charging event to a charging data function.
The present invention relates to devices, methods and computer program products concerning a communication link in, for example, a so-called unlicensed band. The invention proposes an apparatus, comprising : a control module configured to control a transceiver being controllable to use at least one of at least two transmission resources for communication with a respective other apparatus, wherein a first transmission resource is useable for a direct communication with another apparatus of a first type and a second transmission resource is useable for a communication with one of plural other apparatuses of a second type each linked to the other apparatus of the first type, determine whether communication is setup via one of the plural other apparatuses of the second type, and, in response thereto, obtain information for deciding to switch the communication to another one of the apparatuses of the second type, evaluate the information obtained, and, cause to decide to switch the communication to one other apparatus of the second type.
Embodiments include methods for a network equipment (e.g., eNB) requesting channel quality information (CQI) from a communication device (e.g., UE) to provide the device with information that identifies a resource for measuring CQI and the type, amount, and/or location of overhead information (e.g., demodulation reference signals) within the resource. Embodiments also include methods for a communication device to receive, in conjunction with a CQI request, information identifying a resource used for measuring CQI and the type, amount, and/or location of overhead information within the resource. The device utilizes the information to determine one or more values (e.g., CQI indices) and reports these to the network equipment. Embodiments include communication devices or apparatus, network equipment or apparatus, and computer-readable media embodying one or more of the methods.
The invention proposes a method for correcting and/or estimating an in- phase/quadrature-phase mismatch on a random received signal in a radio receiving device, said method causing the device to perform: -processing the random received signal in order to obtain an in-phase component and a quadrature-phase component, -amplifying and digitally converting the in-phase component in order to obtain in-phase samples, -amplifying and digitally converting the quadrature-phase component in order to obtain quadrature-phase samples, -correcting and/or estimating in-phase/quadrature-phase mismatch based on in- phase samples and quadrature-phase samples, the estimating of the in- phase/quadrature-phase mismatch being performed using two estimation loops.
It is provided a method, comprising reserving a first resource element at a predefined first time for transmitting a sounding reference signal; checking if a reservation instruction is received; reserving, based on the reservation instruction, a second resource element at a second time for transmitting the sounding reference signal; and undoing, upon receipt of the reservation instruction, the reserving of the first resource element.
According to at least an aspect of the present invention, there is provided, under an network transceiver device aspect of e.g. an eNB, an apparatus, comprising a controller configured to cause a first set of reference signals to be transmitted at specific locations within a time and frequency resource grid, receive information indicative of a usability of a second set of reference signals within the resource grid, the second set comprising less reference signals as compared to the first set, analyse the received information, and responsive thereto generate control information, and cause to apply the second set of reference signals at specific locations within the time and frequency resource grid to be transmitted, and cause to transmit the generated control information in downlink so as to inform terminals being in communication with said apparatus of said second set of reference signals being applied. A corresponding apparatus in terms of a terminal device of e.g. a UE is also provided as well as respective corresponding methods and computer program products.
A network controlling entity in a heterogeneous or local area network (such as a macro eNB) selects a set of network access nodes that share a common wake-up area code WUAC. The network controlling entity selects a transmission entity such as a motile terminal/UE and directs it to wirelessly transmit a signal on a given radio resource. The network controlling entity also infonns each network access node within the set of the given radio resource on which they should listen for the signal. In various embodiments the network access nodes within the set can choose whether or not to listen for the signal and thus choose whether they will wakeup, or they can reply to the signal with a request for wakeup confirmation. In this manner WUAC-specific sets of small cells can be awakened only when needed for traffic offloading and thereby saving energy.
A method, apparatus and computer program product are provided for minimizing power consumption in a macro cell. A method and apparatus may establish a dual connection with a local area access point of a local area cell and a macro access point of a macro cell. The method and apparatus may also enter a power save mode in a macro cell by utilizing a first discontinuous reception (DRX) pattern in the macro cell in response to establishing the dual connection. The first DRX pattern may include a designated DRX active time period in which a communication device is designated to be active. The DRX active time period is aligned with a time period of a paging occasion of the apparatus.
The present invention addresses a method, apparatus and computer program product for enhanced system information transmissions and/or handover command for new carrier type mobility. The invention comprises determining whether the carrier type to be used for communication is a legacy carrier or a new carrier type which supports at least one of a standalone, macro-assisted and non-standalone configuration, in case of a determining the new carrier type, composing assistant information comprising at least one of: reference signal type information indicating support of at least one of reference signal type information indicating support of at least one of a primary/secondary synchronization signal configuration; cell-specific reference signal configuration; channel state information reference signal configuration and physical discovery channel configuration for the new carrier type; sleep/active mode type information; cell deployment type information indicating a macro/pico/small cell deployment; and information indicating enhanced physical download control channel common search space resource; and causing data exchange of the composed assistant information to a network element.
For an infinite number of transmit antennas at a base station (BS), matched filter (MF) precoding (a type of precoding used to perform SU-MIMO transmission) becomes optimal for performing spatial multiplexing. But observations have shown that precoding types for performing MU-MTMO transmission can perform significantly better than MF precoding for a realizable number of transmit antennas at the BS, even while using the simplest precoding types for MU-MIMO transmission. For large inter-cell interference typically encountered by user terminals (UTs) at or near the boundary of the cell served by the BS, MF precoding can still be used to eliminate or reduce the need for coordination among cells, which consumes network and back-haul resources.
H04B 7/04 - Diversity systemsMulti-antenna systems, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
H04L 25/03 - Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
79.
LOW-POWER ALMOST BLANK SUBFRAME (ABS) IN HETEROGENEOUS NETWORKS
An aggressor access node in a heterogeneous network sends to a victim access node a pattern of transmit power for designated low-interference subframes (e.g., LP-ABSs). Utilizing feedback information collected from the victim node which quantizes interference seen by user equipments (UEs) which are allocated at least some of those subframes, the aggressor node selects whether and how much to adjust transmit power for subsequent such subframes, then sends to the victim node a pattern of the adjusted transmit power for those subsequent subframes (e.g., an enhancement to relative narrowband transmit power RNTP). The victim node sends to UEs the pattern of transmit power and respective resource allocations in those designated low-interference subframes; then derives interference level per UE in those subframes based on channel quality indications received from the respective UEs; and sends to the aggressor access node feedback information which quantizes the derived interference levels.
A method, system, and computer program product that provides a two-index system for clusters of small cells in a wireless network. A first index is employed for access to and identification of a serving cell within a cluster of small cells. A second index indicates a group of small cells for determining mobility control. The first index may be derived from primary/secondary synchronization signals, or from frequency/time division multiplex signal position. The second index may be indicated in system/master information block signals or predefined as a plurality of small cells identified by the first index for each cell. Determination of physical cell identification is aided by providing a plurality of primary/secondary synchronization (PSS/SSS) signal alternating configurations with indicator, wherein a maximum number of configurations is predefined. Signaling the PSS/SSS configurations by one of broadcast or dedicated signaling, said signaling indicating whether each configuration is one of periodic or aperiodic alternation.
There are provided measures for 3D beamforming in mobile network scenarios. Such measures exemplarily comprise configuring at least one CSI-RS resource (S21), transmitting at least one CSI-RS using said at least one CSI-RS resource (S22), receiving at least one matrix indicator indicative of a precoder selected from a precoder codebook and at least one channel quality indicator indicative of a radio channel state, each respectively associated with said at least one CSI-RS (S23), and determining a final precoder for 3D beamforming based on said at least one matrix indicator (S24).
H04B 7/02 - Diversity systemsMulti-antenna systems, i.e. transmission or reception using multiple antennas
H04B 7/04 - Diversity systemsMulti-antenna systems, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
H04B 7/06 - Diversity systemsMulti-antenna systems, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
82.
SIGNALING NOTIFICATION SCHEME FOR IN-DEVICE COEXISTENCE INTERFERENCE
A method comprises determining that an interference caused by third order harmonic distortion between communications using a first frequency and communications using a second frequency is present, generating an indication for indicating that the interference caused by third order harmonic distortion exists, and causing transmission of the indication to a communication network in which at least one of communications using a first frequency and communications using a second frequency is conducted.
A network sends data blocks in a first/n1h radio frame having a first configuration of uplink to downlink transmission time intervals TTIs. Each of these data blocks originate a separate hybrid automatic repeat request HARQ process. The network then frequency or spatially mutliplexes first re-transmissions of at least two of the data blocks in at least one TTI of a sequentially next second/(n+l)st radio frame having a different second configuration of uplink to downlink TTIs. If necessary second re-transmissions of the HARQ processes can also be similarly multiplexed in a TTI of a third/(n+2)nd radio frame sequentially next after the second/(n+l)st frame. In the examples, if frequency domain multiplexing the frequency mutliplexed first re-transmissions are separately scheduled; or if spatial domain multiplexing the spatially mutliplexed first re-transmissions are scheduled with a single physical downlink control channel PDCCH.
Embodiments include methods for allocating physical-layer (PHY) resources of a communication system for a control channel, including determining a set of resource allocation patterns, selecting at least one resource allocation pattern from the determined set, encoding a plurality of indices identifying each of the selected resource allocation patterns, wherein the plurality of indices comprises a first index identifying a selected resource group allocation and a second index identifying a selected resource block allocation, and sending a message comprising the plurality of indices for the selected resource allocation patterns. Other embodiments include methods for determining resource allocation patterns used to allocate PHY resources for a control channel, and methods for receiving an allocation of PHY resources for a control channel. Other embodiments include various apparatus and computer-readable media embodying one or more of the methods.
The present invention proposes methods, devices and computer program products for handling of CSI reporting upon CQI-mask. Accordingly, the present invention provides an apparatus, comprising : at least one processor and at least one memory including computer program code, the at least one memory and the computer program code being configured to, with the at least one processor, cause the apparatus to perform : causing a receiver module to receive, from another apparatus, a signal indicative of a signaling mask indicating at least one of a first reception mode in which the receiver module is allowed to be active for a fixed time, and causing a transmitter module to transmit, to the other apparatus, at least one state signal indicative of a radio channel state at least depending on a type of reception mode of the receiver module according to the signaling mask.
It is provided a method, comprising camping on a first cell in a terminal mode, wherein, in the terminal mode, a mode-enabling downlink signal from the first cell is required; checking if a transition information about an intended transition of the first cell to a sleeping mode is received and if an apparatus performing the method camps in the terminal mode on the first cell, wherein in the sleeping mode of the first cell the mode-enabling downlink signal is not received from the first cell; transmitting a complaint to the first cell if the transition information is received and the apparatus camps in the terminal mode on the first cell.
For providing initial access for a standalone carrier type of a cell of a mobile communication system, frequency and time resources of an information block which includes parameters necessary for a user equipment to access the cell are determined (S10) with respect to synchronization signals used to synchronize the user equipment with the cell in time and frequency. The information block is included (Sll) in resource blocks to be broadcasted in the cell, according to the determined frequency and time resources. A use equipment synchronizes with the cell in time and frequency based on the synchronization signals broadcasted in the cell, and searches, in resource blocks broadcasted in the cell which are within a predetermined detection range from frequency and/or time resources of the synchronization signals, for the information block. The user equipment accesses the cell with the parameters included in the information block detected as a result of the searching.
It is provided a method, comprising : signaling, to a terminal device, to turn into a low power connected mode; inhibiting signaling, to the terminal device, to turn into an idle mode; saving a parameter used to connect to the terminal device in a normal connected mode different from the low power connected mode before signaling to turn into the low power connected mode.
A new random access procedure is introduced that does not use a timing advance for the uplink timing but instead uses the downlink timing for uplink timing. This is particularly viable when the propagation delay is short, for example with local area cells having a coverage range less than some predetermined threshold. From the mobile terminal's perspective it obtains downlink timing for a cell, transmits a scheduling request SR in a contention-based uplink resource, and in response to receiving an uplink resource allocation it transmits in the allocated uplink resource using the downlink timing. The terminal can get the configuration for that contention-based uplink resource from system information. From the uplink resource the terminal and network determines a SR-RNTI, which the network uses to address the uplink resource allocation and the terminal uses to find a pre-defined search space in which to look for that uplink resource allocation.
A method, apparatus, and computer program product are provided to manage the establisliment of a dual connection. A method according to an example embodiment may include causing a dual connection setup request message to be transmitted to a local area access point (LAAP) and causing a dual connection command to be transmitted to a user equipment (UE). The method further includes receiving a dual connection establishment complete message and causing resources associated with one or more split bearers to be released or suspended.
A user equipment UE determines at least one first set SI of physical resource blocks PRBs, and detects downlink signaling within search spaces of set(s) SI. Through that downlink signaling the UE obtains a configuration for a downlink control channel, and that configuration indicates at least one second set S2 of PRBs and at least one search space specific for the UE which lies within S2. The UE utilizes the obtained configuration to monitor at least some of the search spaces of SI and the at least one search space specific for the UE of S2 for further downlink control signaling. Multiple implementations are detailed for how the UE gets SI. This invention is particularly useful for a configurable ePDCCH region in a stand-alone carrier where the UE is not able to get the new configuration from some other carrier such as a PCell whose configuration does not change.
A method of providing wireless sensor network (WSN)-assisted positioning services comprises receiving a positioning service request from a client, the positioning request identifying at least one target UE located within a WSN comprising a plurality of sensor nodes; transmitting a listening request message to the at least one target UE; receiving a positioning request message from the at least one target UE, the positioning request message containing addresses and received signal quality indicators of at least four WSN sensor nodes acquired by the at least one target UE; computing a 3-D position of the at least one target UE using the addresses and received signal quality indicators of the at least four WSN sensor nodes; and transmitting the 3-D position of the at least one target UE to the client.
G01S 5/02 - Position-fixing by co-ordinating two or more direction or position-line determinationsPosition-fixing by co-ordinating two or more distance determinations using radio waves
H04W 84/18 - Self-organising networks, e.g. ad hoc networks or sensor networks
H04W 64/00 - Locating users or terminals for network management purposes, e.g. mobility management
A method, apparatus, and computer program product are provided to manage handover procedures in a dual connection context. In the context of a method, a macro access point (MAP) may initiate a handover between a source and destination local area access point (LAAP) by causing a handover request to be transmitted to the destination LAAP. The method may further involve causing a handover command to be transmitted to a user equipment (UE), causing a data transfer inform message to be transmitted to the source LAAP, and receiving a UE context release message from the destination LAAP. In the context of another method, a LAAP may initiate a handover. The method may involve receiving a dual connection transfer request message from a source LAAP, receiving a dual connection transfer request acknowledge message from a destination LAAP and receiving a Path Switch Successful indication from a Mobility Management Entity.
There are provided measures for cellular assisted non-cellular access point discovery, such as for example LTE/LTE-A-assisted WLAN access point discovery. Such measures may exemplarily comprise measures for determining a request for traffic offloading from a cellular wide-area communication system to a non-cellular local-area communication system at a cellular base station, measures for providing assistance information for access point discovery in the non-cellular local-area communication system from the cellular base station to a terminal being served in the cellular wide-area communication system, said assistance information comprising, for at least one cell of the cellular wide-area communication system, an association with and discovery reference data for at least one access point of the non-cellular local-area communication system, and means for executing access point discovery in the non-cellular local-area communication system on the basis of the obtained assistance information at the terminal.
Providing a sleep mode for network nodes in a wireless communication network. In sleep mode the node broadcasts either zero signals or a subset of normal operating mode signals in order to save power. An uplink signal from user equipment requesting service may contain an wakeup signal to restore normal operation. The uplink signal may also be used for uplink synchronization or random access. A downlink confirmation signal confirms that the node is prepared to deliver normal service. In a configuration of small cells communicatively associated with a macro network node, a method for providing a sleep mode for the small cells. The macro cell requests a user equipment (UE) to send a wake-up signal to which responding small cells answer with a wake-up detected signal. The macro node signals small cells to transmit pilot signals that are measured by the UE to determine which small cell services the UE.
An apparatus and a method are provided, by which a reference signal to be used for channel estimation is sent (e.g., by a base station) or received (e.g., by a user equipment), wherein the reference signal is placed in one subframe in a group of consecutive subframes of a radio frame, the subframe being determined based on the cell identity.
This document discloses a solution for configuring a user equipment of a cellular communication system to support direct device-to-device connectivity with at least one other user equipment and to transmit a device-to-device discovery signal indicating the availability of the device-to-device connectivity to the at least one other user equipment. Furthermore, the user equipment is configured to operate as a local area cell by acquiring operational parameters required for the operation as the local area cell and by causing transmission of a local area cell discovery signal from the user equipment to indicate the availability of the local area cell to the at least one other user equipment.
A system adjusts the quantization parameter used to encode an image sample (e.g., pixel component). The system accesses a quantization parameter for encoding a current image pixel from an implicit rate control and obtains a measure of another image sample within a particular distance from the sample. When the measure meets a predetermined criterion, the system adjusts the quantization parameter, encodes the pixel after adjusting the quantization parameter, and explicitly indicates the adjusting of the quantization parameter to a decoding system.
H04N 19/196 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the adaptation method, adaptation tool or adaptation type used for the adaptive coding being specially adapted for the computation of encoding parameters, e.g. by averaging previously computed encoding parameters
99.
BOUNDED RATE COMPRESSION WITH RATE CONTROL FOR SLICES
A system implements rate control for encoding and decoding operations, for example, operations performed on slices of data such as image data. The system implements a transformation from actual buffer fullness to rate controlled fullness. With the rate controlled fullness model, the encoders and decoders adapt bit allocation responsive to rate controlled fullness, instead of the actual fullness.
A coder (e.g., an encoder or decoder) implements coding of two dimensional blocks of image data using two dimensional differential pulse code modulation (2D DPCM). The coder may switch between DPCM and other types of coding, such as transform coding on a block by block basis. The 2D DPCM may obtain a reconstructed pixel within the two dimensional bloc and code a second, different, pixel within the two dimensional block using the reconstructed pixel. The coder may also create a bitstream of entropy encoded residuals that supports hybrid implicit / explicit specification of coding parameters.
H04N 19/61 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding in combination with predictive coding
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