ACCESS NETWORK SIGNALING AND RESOURCE ALLOCATION FOR MULTICAST/BROADCAST SESSIONS

    公开(公告)号:US20230262734A1

    公开(公告)日:2023-08-17

    申请号:US17970843

    申请日:2022-10-21

    申请人: ZTE Corporation

    IPC分类号: H04W72/30 H04W8/26

    CPC分类号: H04W72/30 H04W8/26 H04W80/02

    摘要: This disclosure describes an architecture for supporting MBS sessions in a wireless access network. Each of such MBS sessions is flexibly and dynamically delivered by the access network into one or more Point-To-Point (PTP, or unicast) and Point-To-Multipoint (PTM, or multicast) delivery instances. As such, a subset of the UEs participating in the MBS may be configured to receive the MBS session in a PTP-like manner and quality. The architecture further allows for access network level switching of one or more of the UEs participating in the MBS session between the PTP mode and PTM mode. Such switching are effectuated dynamically without involvement of application layer. The resource allocations and configuration for the PTP and PTM delivery instances may be performed in the access network collaboratively between a central unit (CU) and one or more distributed units (DUs). Such collaborative resource allocation and configuration may be effectuated using a novel architecture for the signaling messages between the CU and the DUs.

    ACCESS NETWORK SIGNALING AND RESOURCE ALLOCATION FOR MULTICAST/BROADCAST SESSIONS

    公开(公告)号:US20230254666A1

    公开(公告)日:2023-08-10

    申请号:US17970798

    申请日:2022-10-21

    申请人: ZTE Corporation

    IPC分类号: H04W4/06 H04W28/02

    CPC分类号: H04W4/06 H04W28/0268

    摘要: This disclosure describes an architecture for supporting MBS sessions in a wireless access network. Each of such MBS sessions is flexibly and dynamically delivered by the access network into one or more Point-To-Point (PTP, or unicast) and Point-To-Multipoint (PTM, or multicast) delivery instances. As such, a subset of the UEs participating in the MBS may be configured to receive the MBS session in a PTP-like manner and quality. The architecture further allows for access network level switching of one or more of the UEs participating in the MBS session between the PTP mode and PTM mode. Such switching are effectuated dynamically without involvement of application layer. The resource allocations and configuration for the PTP and PTM delivery instances may be performed in the access network collaboratively between a central unit (CU) and one or more distributed units (DUs). Such collaborative resource allocation and configuration may be effectuated using a novel architecture for the signaling messages between the CU and the DUs.

    METHODS, APPARATUS AND SYSTEMS FOR TRANSMITTING DATA BASED ON ASYMMETRIC BANDWIDTH PARTS

    公开(公告)号:US20220141856A1

    公开(公告)日:2022-05-05

    申请号:US17578167

    申请日:2022-01-18

    申请人: ZTE CORPORATION

    IPC分类号: H04W72/12 H04W72/04

    摘要: Methods, apparatus and systems for transmitting data based on asymmetric bandwidth parts in a wireless communication are disclosed. In one embodiment, a method performed by a wireless communication node is disclosed. The method comprises: configuring at least one downlink bandwidth part (BWP) for a wireless communication device, wherein each of the at least one downlink BWP is configured for a downlink transmission to the wireless communication device; configuring at least one uplink BWP for the wireless communication device, wherein each of the at least one uplink BWP is configured for an uplink transmission from the wireless communication device; and configuring a transmission resource on one uplink BWP of the at least one uplink BWP for the wireless communication device to transmit an uplink signal on the transmission resource. The uplink signal indicates a request for activating an associated downlink BWP.

    TRANSMITTING RADIO RESOURCE CONTROL INFORMATION

    公开(公告)号:US20220312536A1

    公开(公告)日:2022-09-29

    申请号:US17683035

    申请日:2022-02-28

    申请人: ZTE Corporation

    IPC分类号: H04W76/20 H04W72/04 H04L1/00

    摘要: Methods, apparatus, and systems for transmitting Radio Resource Control (RRC) layer information without incurring the complex processing in lower layers are described. In one example aspect, a wireless communication method includes scrambling, prior to a Cyclic Redundancy Check (CRC) attachment, at least part of a first Radio Resource Configuration (RRC) message by a base station based on a seed associated with a mobile device. The method also includes transmitting, by the base station, the at least part of the first RRC message at a layer that is lower than a Radio Link Control layer or a Medium Access Control layer over a corresponding channel.

    Adaptive Data Radio Bearer Mapping for Multicast/Broadcast in Wireless Networks

    公开(公告)号:US20220256505A1

    公开(公告)日:2022-08-11

    申请号:US17732206

    申请日:2022-04-28

    申请人: ZTE Corporation

    IPC分类号: H04W72/00 H04W72/08 H04L12/18

    摘要: This disclosure relates to mechanisms for allocating and mapping wireless communication resources for a multicast/broadcast session in a wireless network. In some exemplary implementations, data flows in a multicast/broadcast session may be duplicated and adaptively and dynamically mapped to multiple independent radio bearers, where each of these multiple independent radio beaters may be configured to either multicast the multicast/broadcast data to a group of target user equipments or unicast the multicast/broadcast data to a single user equipment.

    DYNAMICALLY CHANGING MULTICAST/BROADCAST SERVICE DELIVERY

    公开(公告)号:US20230023919A1

    公开(公告)日:2023-01-26

    申请号:US17951740

    申请日:2022-09-23

    申请人: ZTE CORPORATION

    IPC分类号: H04W72/00

    摘要: Presented are systems and methods for dynamically changing multicast service delivery between multicast and unicast with service continuity. A wireless communication device may receive multicast radio resource configuration information from a network. The wireless communication device may configure, according to the multicast radio resource configuration information, an air interface protocol stack of the wireless communication device. The wireless communication device may receive data of a multicast service according to the multicast radio resource configuration information.

    METHODS AND DEVICES FOR UPDATING CONFIGURATION INFORMATION OF DOWNSTREAM DEVICES DURING INTER-DONOR MIGRATION

    公开(公告)号:US20230007509A1

    公开(公告)日:2023-01-05

    申请号:US17942272

    申请日:2022-09-12

    申请人: ZTE Corporation

    IPC分类号: H04W24/02 H04W76/20

    摘要: The present disclosure describes methods, systems, and devices for updating configuration information for a downstream device of a migrating integrated access backhaul node (IAB-node) during an inter-donor migration from a source IAB-donor to a target IAB-donor. The method includes providing, by an IAB-donor central unit (CU), updated configuration information into system information which is contained in a system information block (SIB) other than SIB1 carried in a SystemInformation (SI) message, and encoding the system information with the updated configuration information. The method also include sending, by the IAB-donor CU, the system information including the updated configuration information as a radio resource control (RRC) container to a migrating IAB-node distributed unit (DU) via F1-AP. The method further includes the migrating IAB-node DU forwards the system information including the updated configuration information through a dedicated RRC message to the downstream device.