Abstract: A paging method, a paging device and a readable storage medium thereof are disclosed. The method includes: measuring synchronization signal blocks to obtain signal qualities of the synchronization signal blocks, wherein each synchronization signal block respectively corresponds to at least one of downlink beams, a random access channel resource, and/or a random access preamble; selecting suitable synchronization signal blocks from the synchronization signal blocks based on the signal qualities, wherein the signal qualities of the suitable synchronization signal blocks satisfies a first predetermined condition; and transmitting a RACH resource and/or the random access preamble corresponding to the suitable synchronization signal blocks.

Abstract: A resource selection method and apparatus for device-to-device/vehicle-to-everything communication supporting carrier aggregation are disclosed. The resource selection method includes: initializing at least two resource pools, wherein each resource pool corresponds to one carrier; excluding an expected-busy resource from each resource pool associated with a resource of which channel signal strength is greater than a comparison threshold during a sensing period; determining whether remaining resources of a candidate resource pool meet a criterion for stopping resource exclusion, wherein the candidate resource pool comprises a portion of or all the resource pools, and the criterion comprises that a criteria parameter of the candidate resource pool is greater than or equal to a preset threshold of the criteria parameter; selecting a resource subset from the remaining resources of the candidate resource pool when the criterion is met, and otherwise incrementing the comparison threshold.

Abstract: Described is a method of decoding a physical sidelink control channel (PSCCH). The method comprises: for a PSCCH candidate in a resource grid, processing a received demodulation reference signal (DMRS) in a subframe of the resource grid associated with the PSCCH candidate to determine one or more potential PSCCHs for decoding, each of the one or more potential PSCCHs being identified by resource block (RB) position in the resource grid and a corresponding DMRS cyclic shift (ncs) value. This step is repeated for at least one other DMRS in the subframe to determine one or more potential PSCCHs for the at least one other DMRS. Then, a subset L of PSCCHs is selected from the potential PSCCHs. The selected subset L of PSCCHs together with their corresponding DMRS cyclic shift (ncs) values are made available for use in a decoding process for the received channel signal.

Abstract: A method of performing carrier frequency offset (CFO) estimation and/or time offset (TO) estimation at a radio equipment in a mobile communications system. The method allows, for each of a plurality of synchronization signal (SS) blocks (SSBs) in a SS Burst detected at said radio equipment, determining a CFO estimation and/or a TO estimation based on network information signal prediction. The method includes selecting at least some of said detected SSBs in said SSB Burst and combining the CFO estimations and/or the TO estimations to obtain improved CFO compensation and/or TO compensation for signal processing at said radio equipment.

Abstract: A communication method includes: determining by a user equipment whether an SCG failure occurs between the user equipment and an SCG; when the SCG failure occurs between the user equipment and the SCG, using, by the user equipment, a failure mode measurement configuration to perform measurement and/or reporting of a link quality between the user equipment and the SCG. In this way, when the SCG failure occurs between the user equipment and the SCG, the power/resources consumed before the user equipment finds a proper cell can be reduced. A user equipment, a communication node and an apparatus having a storage function are also provided.

Abstract: Described is a method of decoding a physical sidelink control channel (PSCCH). The method comprises: for a PSCCH candidate in a resource grid, processing a received demodulation reference signal (DMRS) in a subframe of said resource grid associated with said PSCCH candidate to determine one or more potential PSCCHs for decoding, each of said one or more potential PSCCHs being identified by resource block (RB) position in the resource grid and a corresponding DMRS cyclic shift (ncs) value. The foregoing step is repeated for at least one other DMRS in said subframe to determine one or more potential PSCCHs for said at least one other DMRS. Then, a subset L of PSCCHs is selected from said potential PSCCHs whereby said selected subset L of PSCCHs together with their corresponding DMRS cyclic shift (ncs) values are made available for use in a decoding process for the received channel signal.

Abstract: Described is a method of decoding a physical sidelink shared channel (PSSCH) involving physical sidelink control channel (PSCCH) resource grid search space reduction, timing offset (TO) estimation, and reference symbol identification. Resource grid search space reduction may include identifying resource blocks (RBs) having a signal power below a first threshold such that said RBs can be excluded from further processing. Search space reduction may additionally or alternatively include identifying RB pairs where a difference in signal power between the RBs comprising each pair of RBs is above a second threshold and excluding any such said RB pairs from further processing. TO compensation may include circularly correlating TO-compensated received DMRSs and their corresponding local DMRSs to obtain energy or power profiles.

Abstract: Described is a method of decoding a physical sidelink shared channel (PSSCH) involving physical sidelink control channel (PSCCH) resource grid search space reduction, timing offset (TO) estimation, and reference symbol identification. Resource grid search space reduction may include identifying resource blocks (RBs) having a signal power below a first threshold such that said RBs can be excluded from further processing. Search space reduction may additionally or alternatively include identifying RB pairs where a difference in signal power between the RBs comprising each pair of RBs is above a second threshold and excluding any such said RB pairs from further processing. TO compensation may include circularly correlating TO-compensated received DMRSs and their corresponding local DMRSs to obtain energy or power profiles.

Abstract: A paging method, a paging device and a readable storage medium thereof are disclosed. The method includes: measuring synchronization signal blocks to obtain signal qualities of the synchronization signal blocks, wherein each synchronization signal block respectively corresponds to at least one of downlink beams, a random access channel resource, and/or a random access preamble; selecting suitable synchronization signal blocks from the synchronization signal blocks based on the signal qualities, wherein the signal qualities of the suitable synchronization signal blocks satisfies a first predetermined condition; and transmitting a RACH resource and/or the random access preamble corresponding to the suitable synchronization signal blocks.

Abstract: The present disclosure discloses a communication state transition method. The method comprises: receiving, by a user equipment, information of one or more candidate cells from a current cell; measuring, by the user equipment, the one or more candidate cells when the user equipment is in a RRC_INACTIVE or RRC_IDLE state to obtain measurement results; and building up, by the user equipment, a connection with a desired cell instead of a resident cell to transit from the RRC_INACTIVE or RRC_IDLE state to a RRC_CONNECTED state after receiving a paging message, wherein the desired cell is selected by the user equipment from the one or more candidate cells based on the measurement results. The present disclosure also discloses a communication state transition apparatus.

Abstract: Systems and methods which provide for accurate decoding of a received channel signal when station identifier information is unknown. Embodiments accurately decode a physical downlink control channel (PDCCH), such as to obtain downlink control information (DCI), without knowing radio network temporary identifier (RNTI) information. An unknown station identifier information (USII) of embodiments uses redundancy reduction-based error checking (performing error checking between data decoded from a candidate control channel data block containing redundant data and a portion of that candidate control channel data block containing redundancy reduced data) for implementing decoding when station identifier information is unknown. Embodiments of a USII decoder may use a power detection technique for identifying candidate control channel data blocks used in redundancy reduction-based error checking operation.

Abstract: A paging method, a paging device and a readable storage medium thereof are disclosed. The method includes: measuring synchronization signal blocks to obtain signal qualities of the synchronization signal blocks; selecting suitable synchronization signal blocks from the synchronization signal blocks based on the signal qualities; selecting a target synchronization signal block from the suitable synchronization signal blocks; and transmitting a paging response message to a base station utilizing a random access channel resource and/or a random access preamble corresponding to the target synchronization signal block to instruct the base station to transmit a paging message utilizing a downlink beam corresponding to the target synchronization signal block.

Abstract: Systems and methods which provide for accurate decoding of a received channel signal when station identifier information is unknown. Embodiments accurately decode a physical downlink control channel (PDCCH), such as to obtain downlink control information (DCI), without knowing radio network temporary identifier (RNTI) information. An unknown station identifier information (USII) of embodiments uses redundancy reduction-based error checking (performing error checking between data decoded from a candidate control channel data block containing redundant data and a portion of that candidate control channel data block containing redundancy reduced data) for implementing decoding when station identifier information is unknown. Embodiments of a USII decoder may use a power detection technique for identifying candidate control channel data blocks used in redundancy reduction-based error checking operation.

Abstract: A paging method, a paging device and a readable storage medium thereof are disclosed. The method includes: measuring synchronization signal blocks to obtain signal qualities of the synchronization signal blocks; selecting suitable synchronization signal blocks from the synchronization signal blocks based on the signal qualities; selecting a target synchronization signal block from the suitable synchronization signal blocks; and transmitting a paging response message to a base station utilizing a random access channel resource and/or a random access preamble corresponding to the target synchronization signal block to instruct the base station to transmit a paging message utilizing a downlink beam corresponding to the target synchronization signal block.

Abstract: A resource selection method and apparatus for device-to-device/vehicle-to-everything communication supporting carrier aggregation are disclosed. The resource selection method includes: initializing at least two resource pools, wherein each resource pool corresponds to one carrier; excluding an expected-busy resource from each resource pool associated with a resource of which channel signal strength is greater than a comparison threshold during a sensing period; determining whether remaining resources of a candidate resource pool meet a criterion for stopping resource exclusion, wherein the candidate resource pool comprises a portion of or all the resource pools, and the criterion comprises that a criteria parameter of the candidate resource pool is greater than or equal to a preset threshold of the criteria parameter; selecting a resource subset from the remaining resources of the candidate resource pool when the criterion is met, and otherwise incrementing the comparison threshold.

Abstract: The present disclosure discloses a communication state transition method. The method comprises: receiving, by a user equipment, information of one or more candidate cells from a current cell; measuring, by the user equipment, the one or more candidate cells when the user equipment is in a RRC_INACTIVE or RRC_IDLE state to obtain measurement results; and building up, by the user equipment, a connection with a desired cell instead of a resident cell to transit from the RRC_INACTIVE or RRC_IDLE state to a RRC_CONNECTED state after receiving a paging message, wherein the desired cell is selected by the user equipment from the one or more candidate cells based on the measurement results. The present disclosure also discloses a communication state transition apparatus.

Abstract: Systems and methods which provide white space channel identification and/or selection using high probability area determinations for a device and availability probability calculations for channels based on a probability model are described. A white space device (WSD) may utilize spectrum scanner sensing results to determine one or more course high probability area (HPA) for the WSD. The sensing results may further be analyzed to derive probability information regarding the WSD being located at the HPAs, to thereby refine the HPAs. Thereafter, the information regarding probabilities of the WSD being located at the HPAs may be utilized with information from a white space location database to determine an availability probability of one or more white space channels. One or more such white space channels may be identified and/or selected for use by the WSD.

Abstract: A system comprising beacon-generating clusters for enabling a mobile computing device to perform location or proximity determination is provided. Each cluster comprises a primary station for broadcasting a primary beacon, and an offset-assisted station, positioned from the primary station by an offset distance along a direction, for broadcasting a secondary beacon. The offset distance and the direction are unique for all the clusters, causing a jittering area, within which the mobile computing device is unable to determine which one of adjacent primary stations is closer to from detecting the primary beacons, to be reduced by further utilizing the secondary beacons provided by the clusters. Fluctuation in received signal strength indicator (RSSI) can be reduced by having each station, primary or secondary, installed with multiple co-located broadcasting units for utilizing space and time diversity to reduce RSSI fluctuation. In another option, multiple offset-assisted stations are used for each cluster.

Abstract: A system comprising beacon-generating clusters for enabling a mobile computing device to perform location or proximity determination is provided. Each cluster comprises a primary station for broadcasting a primary beacon, and an offset-assisted station, positioned from the primary station by an offset distance along a direction, for broadcasting a secondary beacon. The offset distance and the direction are unique for all the clusters, causing a jittering area, within which the mobile computing device is unable to determine which one of adjacent primary stations is closer to from detecting the primary beacons, to be reduced by further utilizing the secondary beacons provided by the clusters. Fluctuation in received signal strength indicator (RSSI) can be reduced by having each station, primary or secondary, installed with multiple co-located broadcasting units for utilizing space and time diversity to reduce RSSI fluctuation. In another option, multiple offset-assisted stations are used for each cluster.

Abstract: For an ultra dense network (UDN) having small cells of highly overlapped coverages, a user equipment (UE) selects in a handover process a preferred base station (BS) from candidate BSs for minimizing occurrence of handover events. The UE computes finite differences consisting of a first-, a second-, and one or more higher-order differences, according to received signal strength (RSS) values obtained for each candidate BS. A preference level, which is a total number of finite differences having consecutive order numbers, including the first-order difference, and being positive or non-negative, is computed for each candidate BS. One or more favorable candidate BSs from the candidate BSs are identified such that the group of such favorable candidate BSs has the same preference level that is maximum among all the preference levels computed for the candidate BSs. The preferred BS is selected from the group of such favorable candidate BSs.