PRESERVATION OF SESSION CONTEXT IN A COMMUNICATIONS NETWORK

    公开(公告)号:US20250031171A1

    公开(公告)日:2025-01-23

    申请号:US18707094

    申请日:2022-11-03

    Abstract: A wireless transmit/receive unit (WTRU) may send to a network node a registration request message requesting to register with the network and indicating that the WTRU is capable of preserving, when the WTRU becomes unavailable to the network, context information associated with the communications between the WTRU and the network. The network node may indicate in a registration accept message that the network supports the preservation of context information when the WTRU becomes unavailable to the network. Based on a determination that the WTRU will become unavailable to the network, the WTRU may send to the network a message indicating a request to preserve the context information. The message may comprise an indication of a time period during which the WTRU will be unavailable.

    5G multicast-broadcast services (MBS) multiplexing, reliability, and power savings

    公开(公告)号:US12192008B2

    公开(公告)日:2025-01-07

    申请号:US18759378

    申请日:2024-06-28

    Abstract: Methods and apparatuses are described herein for Multicast/Broadcast Services (MBS). The embodiments described herein are directed to procedures for managing multiplexed MBS traffic, for prioritization between MBS related UL traffic, unicast UL traffic, and SL traffic, for handling HARQ retransmissions over C-RNTI, to support PDCP Status Reporting for MBS services, and for a wireless transmit/receive unit (WTRU) joining already started/activated Multicast Sessions. In one example, a WTRU may receive multiplexed MBS services via one or more MBS radio bearers (MRB) and/or one or more unicast data radio bearers (DRBs). The WTRU may be configured with a single Service Data Adaptation Protocol (SDAP) entity for the MBS services, and demultiplexing of traffic may be performed at the SDAP layer. The WTRU may be configured to demultiplex multiple logical channels across different MBS services, where the logical channels are received over the same transport block.

    5G MULTICAST-BROADCAST SERVICES (MBS) MULTIPLEXING, RELIABILITY, AND POWER SAVINGS

    公开(公告)号:US20240356680A1

    公开(公告)日:2024-10-24

    申请号:US18759378

    申请日:2024-06-28

    CPC classification number: H04L1/1822 H04W4/06

    Abstract: Methods and apparatuses are described herein for Multicast/Broadcast Services (MBS). The embodiments described herein are directed to procedures for managing multiplexed MBS traffic, for prioritization between MBS related UL traffic, unicast UL traffic, and SL traffic, for handling HARQ retransmissions over C-RNTI, to support PDCP Status Reporting for MBS services, and for a wireless transmit/receive unit (WTRU) joining already started/activated Multicast Sessions. In one example, a WTRU may receive multiplexed MBS services via one or more MBS radio bearers (MRB) and/or one or more unicast data radio bearers (DRBs). The WTRU may be configured with a single Service Data Adaptation Protocol (SDAP) entity for the MBS services, and demultiplexing of traffic may be performed at the SDAP layer. The WTRU may be configured to demultiplex multiple logical channels across different MBS services, where the logical channels are received over the same transport block.

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