Abstract: A signaling-link retimer concatenates discontiguous leading and trailing portions of a precoded and scrambled symbol stream, shunting the trailing portion of the stream ahead of unneeded stream content to dynamically reduce the number of symbols queued between retimer input and output and thus reduce retimer transit latency.

Abstract: Systems, devices, and techniques for preemption indication in wireless communication systems are described. A described technique includes receiving, by a User Equipment (UE) via a physical downlink control channel (PDCCH), a downlink control information (DCI) message in a Control Resource Set (CORESET) configured with a transmission configuration indicator (TCI) state, the TCI state being associated with a transmission reception point (TRP), the DCI message comprising a downlink preemption indication for the TCI state; and applying preemption to a reference signal or a channel associated with the TCI state responsive to the downlink preemption indication.

Abstract: A communication apparatus sets, in a case where an operation state of the communication apparatus is a first operation state in which data of a predetermined type is not transmitted and received, a ratio of a first period assigned for a first communication mode to a second period assigned for a second communication mode to a first ratio. In a second operation state in which data of the predetermined type is transmitted and/or received, a ratio of the first period to the second period is set to a second ratio. In a case where, in the second operation state, a channel used in one communication mode of the first communication mode and the second communication mode is a Dynamic Frequency Selection (DFS) channel, a period assigned for the one communication mode to satisfy a DFS operation regardless of the second ratio is set.

Abstract: A method and system for handling roaming in train-to-trackside wireless networks including: receiving, by an access point (APi) currently associated with a train access terminal installed on-board a train, radio measurements of signals received by the train access terminal from access points of the train-to-trackside wireless network; determining a next access point (APnext) providing the highest signal quality (maxSQ); evaluating compliance with roaming criteria including: the next access point (APnext) is included in a list of candidate access points (Ni); the time elapsed since the last roaming exceeds a minimum permanency time (tp); the highest signal quality (maxSQ) exceeds the signal quality (SQ(i)) of the access point (APi) by a roaming margin; if the roaming criteria are met, sending a roaming command instructing the train access terminal to roam to the next access point (APnext).

Abstract: Systems, methods, and apparatus for reporting a Downlink Data Delivery Status (DDDS) are disclosed herein. An example method includes a network node generating a DDDS frame including an indicator that a highest transmitted Packet Data Convergence Protocol (PDCP) Packet Data Unit (PDU) sequence number is present in the DDDS frame, an indicator that a highest successfully delivered PDCP PDU sequence number delivered is present in the DDDS frame, a desired buffer size for a data bearer, the highest transmitted PDCP PDU sequence number, and the highest successfully delivered PDCP PDU sequence number. The network node provides the DDDS frame to a second network node.

Abstract: A method and device are disclosed from the perspective of a first User Equipment (UE) to perform a PC5 unicast link establishment procedure. In one embodiment, the method includes the first UE transmitting a first PC5-S message for establishing a PC5 unicast link with a UE-to-UE Relay, wherein the PC5-S message includes a Layer-2 Identity (ID) of a second UE. The method further includes the first UE receiving a second PC5-S message from the UE-to-UE Relay, wherein the second PC5-S message is transmitted by the UE-to-UE Relay in response to reception of the first PC5-S message.

Abstract: A user device includes a receiver configured to receive, from a base station, a signal containing one or more transmission configuration indication information items; and a controller configured to determine whether an assumption of a QCL (Quasi-Co-Location) relationship between a first signal and a second signal is valid, based on the one or more transmission configuration indication information items, wherein the controller performs an operation with respect to the first signal in accordance with a result of the determination.

Abstract: Methods, systems, and devices for wireless communications are described. Aspects of the present disclosure provide techniques to achieve inter-base station beam management to avoid interference during full-duplex (FD) operations, half-duplex (HD) operations, flexible time-domain duplexing (TDD), or a combination thereof, by performing interference management specific to beam configurations. For example, a first base station (e.g., an aggressor base station operating in FD) may perform one or more actions to proactively determine if inter-base station interference may occur. In some cases, the aggressor base station may request measurements from one or more victim base stations. In other examples, the victim base station may request measurements from the aggressor base station. Additionally or alternatively, the victim base station may provide reactive feedback to the aggressor base station upon detecting interference.

Abstract: Methods, systems, and devices for wireless communications are described. A wireless repeater may communicate with multiple base stations, and the wireless repeater may identify a first base station as a primary base station. The wireless repeater may monitor for and receive control information from the primary base station, where the control information may include control information from a second base station and used by the wireless repeater to communicate with one or more UEs connected to the second base station. The primary base station may receive an indication of the control information from the second base station via a backhaul link. In other examples, the wireless repeater may monitor for control information from the two or more base stations based on a control signaling pattern. For example, the wireless repeater may be configured with periodic time intervals for monitoring for control signaling from respective base stations.

Abstract: Techniques are provided for diminishing adjacent channel interference between radios using shared frequency spectrum. A guard band may be inserted between a pair of adjacent frequency spectrums so that they are no longer adjacent.

Abstract: The present disclosure provides a routing management method and apparatus, a network device, and a readable storage medium. The method comprises: a controller obtaining network topology information of a network side; the controller calculating, on the basis of the network topology information, path information of a segment routing traffic engineering (SR-TE) instance to be created, and sending the path information to a header node of the network side, wherein the path information comprises segment list information and entropy label (EL) insertion position information; and the controller creating the SR-TE instance from the header node to a tail node on the network side.

Abstract: Methods and apparatuses for predictive beam management in a wireless communication system. A method of operating a user equipment (UE) includes receiving configuration information for transmission configuration indication (TCI) states; receiving information indicating a number of TCI states and a number of corresponding TCI state application times; and determining, for one or more TCI states in the number of TCI states, at least one of downlink (DL) quasi-co-location (QCL) properties for DL communication and an uplink (UL) spatial domain filter for UL communication. The method further includes at least one of receiving, using the determined DL QCL properties, DL channels starting at the corresponding TCI state application times and transmitting, using the determined UL spatial filter, UL channels starting at the corresponding TCI state application times.

Abstract: Disclosed is a method by a terminal for performing a sidelink (SL) communication, including receiving, from a base station, configuration information on an SL communication including information on one or more SL resource pools and information on a BWP for each of the one or more SL resource pools, receiving, from the base station, downlink control information (DCI) indicating resources for the SL communication from the one or more SL resource pools, identifying the resources and the BWP for the SL communication based on the configuration information and the DCI, and performing the SL communication based on the resources on the BWP.

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive a first signal from a base station indicating a set of available control channel monitoring sets to be used for control information. The UE may receive, over a default control channel monitoring set of the available control channel monitoring sets configured for the UE, a second signal from the base station activating at least one additional control channel monitoring set from the set of available control channel monitoring sets, the default control channel monitoring set comprising a subset of the set of available control channel monitoring sets. The UE may receive control information over the default control channel monitoring set and the at least one additional control channel monitoring set at least partially in response to receiving the second signal.

Abstract: In accordance with an example embodiment, there is disclosed a method comprising: receiving, by a user equipment in a wireless network, beam information from a serving cell and each neighboring cell; assessing a beam quality of the serving cell and each neighboring cell from the information; determining a subset of the serving cell and neighboring cells comprising the serving cell and each neighboring cell with a beam quality within a first offset of the serving cell and each neighboring cell with a highest quality beam; ranking each cell of the subset in descending order from highest to lowest quality.

Abstract: Embodiments of this application disclose a channel measurement method and device. The method includes: receiving, by an access network device, a sounding reference signal (SRS) from a terminal device; receiving, by the access network device from the terminal device, a power adjustment factor used by first antenna ports, where the first antenna ports are antenna ports used by the terminal device to send a data signal; determining, by the access network device, a first uplink channel based on the SRS; and determining, by the access network device, a target channel based on the first uplink channel and the power adjustment factor used by the first antenna ports, where the target channel is a target uplink channel or a target downlink channel.

Abstract: The present disclosure relates to a communication method and system for converging a 5th-Generation (5G) communication system for supporting higher data rates beyond a 4th-Generation (4G) system with a technology for Internet of Things (IoT). The present disclosure may be applied to intelligent services based on the 5G communication technology and the IoT-related technology, such as smart home, smart building, smart city, smart car, connected car, health care, digital education, smart retail, security and safety services. The method includes configuring, by a User Equipment (UE) (100), a Protocol Data Unit (PDU) session type as an always-ON type or a normal PDU type. Further, the method includes sending, by the UE (100), a PDU session establishment request message including the PDU session type to be the always-ON type or the normal PDU type to a network (200) during an initial PDU session establishment procedure.

Abstract: Techniques disclosed herein relate to reducing RRC signalling messages. Techniques can be employed to reduce the number of Random Access Channel (RACH) attempts to obtain NotBroadcasted (e.g., On Demand System Information(s) (SIs)) by a UE in response to a paging message indicating SI modification. The UE may monitor the Physical Broadcast Channel (PBCH) for a given duration in attempt to decode the On Demand SI(s) without initiating a RACH procedure. If the UE fails to decode the On Demand SI(s) within the given duration, the UE may initiate a RACH procedure to obtain the On Demand SI(s).

Abstract: The present invention is for beam selection for communication, and an electronic device may include a housing, at least one antenna array including antenna elements disposed in the housing, or formed in part of the housing, at least one processor electrically or operatively connected with the antenna array, and configured to form a plurality of reception beams (rx beams) having different directions, using the antenna array, and a memory operatively connected with the processor. The memory may stores instructions for causing the processor to measure, by using the plurality of the rx beams, signal strength values of a plurality of tx beams transmitted from at least one base station and having different directions, generate measurement results of (the number of the rx beams)×(the number of the tx beams), and select one of a plurality of methods for selecting one beam pair from among the (the number of the rx beams)×(the number of the tx beams)-ary beam pairs, based at least in part on the measurement results.

Abstract: A data processing method and apparatus are disclosed, and the method includes: determining a radio bearer (RB) to which a first flow is mapped changing from a first RB to a second RB; and sending end indication information. Data packet disorder can be avoided by said method and apparatus.