H04W36/0016

Second base station addition request for vehicle-to-everything (V2X)
11564133 · 2023-01-24 · ·

A first base station receives a second base station addition request. The second base station addition request indicates for each packet flow of packet flows of a wireless device: whether each packet flow is for at least one vehicle-to-everything (V2X) service; and a quality-of-service indicator of each packet flow. An indication of an acceptance or rejection of each packet flow, of the packet flows, is sent based on whether each packet flow is for the at least one V2X service.

RACH CONFIGURATION IN L1/L2 MOBILITY

Devices, systems, and methods for Random Access Channel (RACH) configuration in Layer 1 (L1)/Layer 2 (L2) mobility. A user equipment (UE) may obtain a downlink (DL) Transmission Configuration Indicator (TCI) list from a first Transmission and Reception Point (TRP). The DL TCI list may include DL beam information, RACH Occasion (RO) information, and initial Bandwidth Part (BWP) information associated with each DL TCI of a plurality of DL TCIs related to the first TRP and multiple TRPs adjacent to the first TRP. The UE may receive a handover command from the first TRP via Downlink Control Information (DCI) in Li or Media Access Control (MAC) Control Element (CE) in L2. The handover command indicates a handover from the first TRP to a second TRP of the multiple TRPs for the UE, and includes a specified DL TCI related to the second TRP. The UE may determine RACH information related to the second TRP, based at least partly on the specified DL TCI related to the second TRP included in the handover command and the DL TCI list. The UE may then perform random access to the second TRP based on the RACH information related to the second TRP. The RACH information may include uplink (UL) beam information, RO information and Bandwidth Part (BWP) information for the UE to perform random access to the second TRP.

SYSTEMS AND METHODS FOR EFFICIENTLY CAUSING A SECONDARY CELL TO BECOME A PRIMARY CELL

In some implementations, a device may receive cell information regarding a current primary cell associated with a user equipment (UE), wherein the UE is further associated with a plurality of secondary cells. The device may determine, based on the cell information, that the UE is to be associated with a new primary cell, wherein the new primary cell is selected from the plurality of secondary cells. The device may generate configuration information indicating that: a particular secondary cell, of the plurality of secondary cells, is to become the new primary cell, and one or more other secondary cells, of the plurality of secondary cells, are to remain secondary cells. The device may provide, to the UE, the configuration information to configure the UE to communicate via the new primary cell.

Make-before-break (MBB) handover operations

Aspects of the present disclosure relate to wireless communications, and more particularly, to performing a handover on a per-data radio bearer (DRB) basis. In some examples, the disclosure is directed to indicating, to a source network entity, a make-before-break (MBB) handover capability of the UE, the MBB handover capability supporting MBB handovers for one or more DRBs identified by the source network entity. In some examples, the disclosure describes receiving, from the source network entity, configuration information for a handover from the source network entity to a target network entity, the configuration information identifying the one or more DRBs supported for the MBB handover.

Signalling improvement in conditional handover

An apparatus comprising means for performing: receiving, while connected to a first cell, preparation information for preparing the apparatus for a conditional handover of the apparatus to at least one other cell; receiving, from the first cell, a message, wherein the message causes the apparatus to transition from a connected state to an inactive state; receiving, from the first cell, information of a release condition; when it is determined that the release condition is met, sending a release indication and releasing the preparation information from the apparatus.

Differential latency measurement

The present invention provides a method of selecting an optimal communication routing between a UE and a core network wherein a plurality of differing communication paths are establishable between the UE and the network. Duplicate packets are transmitted over two communication paths and a latency difference determined between the two paths. This latency difference is used to select a communication path for subsequent communication.

Pre-forwarding data packets for conditional handover
11706674 · 2023-07-18 · ·

Various embodiments are described for apparatuses, systems, and methods for pre-forwarding data packets for conditional handover. A UE may connect to a serving base station and perform measurement(s) of one or more neighboring base stations. The UE may provide measurement report(s) corresponding to the measurement(s) to the serving base station. The UE may receive handover assistance information from the serving base station. The handover assistance information may identify at least one neighboring base station that receives downlink packet forwarding of downlink packets intended for the UE prior to handover. The UE may evaluate handover conditions of the neighboring base stations, including the at least one neighboring base station. The UE may perform handover to a first neighboring base station of the at least one neighboring base station based on the at least one neighboring base station receiving downlink packet forwarding of downlink packets intended for the UE prior to handover.

BASE STATION AND RADIO COMMUNICATION METHOD

A base station includes a receiving unit that receives a terminal capability from a terminal before a security procedure, and a transmitting unit that transmits, to other nodes, a message that does not include the terminal capability acquired before the security procedure or transmits, to other nodes, the terminal capability together with an information element indicating that the terminal capability acquired before the security procedure is invalid.

MACHINE-TO-MACHINE (M2M) TERMINAL, BASE STATION, METHOD, AND COMPUTER READABLE MEDIUM
20230224784 · 2023-07-13 · ·

A Machine-to-machine (M2M) terminal (11) comprises a radio communication unit (111) and a controller (112). The radio communication unit (111) is configured to communicate with a base station (13). The controller (112) is configured to change at least one of a cell selection operation, a cell reselection operation, and a handover operation according to whether a specific coverage enhancement processing is required or according to whether the specific coverage enhancement processing is supported by at least one of a cell (13) in which the M2M terminal (11) camps on and a neighbouring cell (14) of the cell (13) which the M2M terminal (11) camps on. It is thus possible to provide an improved technique for allowing the M2M terminal that is supporting a special coverage enhancement processing for M2M terminals to camp on an appropriate cell.

METHOD FOR NETWORK SLICE HANDOVER AND NETWORK DEVICE
20230014464 · 2023-01-19 ·

A method and apparatus for network slice handover (HO) are provided. The method includes the following. A target base station receives an HO request transmitted by a source base station. The target base station determines whether to perform slice remapping. A network device, includes a transceiver, a processor; and a memory storing programs which, when executed by the processor, are operable with the processor to perform the method.