ENHANCED SIDELINK HYBRID AUTOMATIC REPEAT REQUEST WITH INTEGRATED USER EQUIPMENT-TO-USER EQUIPMENT RELAY

    公开(公告)号:US20240048285A1

    公开(公告)日:2024-02-08

    申请号:US18258825

    申请日:2020-12-22

    CPC classification number: H04L1/1825 H04W88/04

    Abstract: A method may include initiating, by a transmitter user equipment, a hybrid automatic repeat request process for groupcasting a transport block over seedbank to one or more relay user equipment and at least one remote user equipment. The method may also include performing a first groupcast transmission of the transport block using the hybrid repeat request process. The method may further include monitoring feedback from the one or more relay user equipment and the at least one remote user equipment at a first time instance and at a second time instance. In addition, the method may include generating a retransmission strategy of the transport block depending on the feedback monitored at the first time instance and the second time instance. Further, the method may include controlling retransmission of the transport block using the hybrid automatic repeat request process based on the retransmission strategy.

    Data Communication with Adaptable Feedback Mode

    公开(公告)号:US20240014978A1

    公开(公告)日:2024-01-11

    申请号:US18037409

    申请日:2020-11-19

    CPC classification number: H04L5/0053 H04L1/1812

    Abstract: Various example embodiments relate to providing feedback with an adaptive acknowledgement mode. A device may transmit an allocation of transmission resource(s) associated with a second acknowledgement mode. The second acknowledgement mode may include transmission of a positive acknowledgement and a negative acknowledgement. Another device may detect a condition to switch to a first acknowledgement mode including transmission of the negative acknowledgement and not transmission of the positive acknowledgement. The other device may transmit an indication of a switch to the first acknowledgement mode. Apparatuses, methods, and computer programs are disclosed.

    SL DATA TRANSMISSION FOR UNICAST SIDELINK BETWEEN USER EQUIPMENTS

    公开(公告)号:US20230327822A1

    公开(公告)日:2023-10-12

    申请号:US18040131

    申请日:2021-08-04

    CPC classification number: H04L1/1887 H04L1/1896

    Abstract: An ARQ system for sidelink communication between transmitter and receiver, with the help of cooperative UE, or relay UE is disclosed. The relay intercepts the initial transmission from transmitter to receiver. If the relay does not intercept any ARQ feedback from the receiver (DTX), it retransmits the initial transmission. Upon receiving at least the Sidelink Control Information, SCI, identifying the retransmission, the transmitter terminates the HARQ process, assuming that the relay is now in charge of the retransmission. Upon reception of the retransmission, the receiver feeds back an HARQ ACK to the relay and the transmitter. If the receiver correctly receives the initial transmission, it feeds back an HARQ ACK to the relay and the transmitter and both relay and transmitter stop the HARQ process. If the relay does not successfully receive the initial transmission, it feds back a NACK to the transmitter which performs retransmission to the relay.

    USE OF MULTIPLE CONFIGURED GRANTS FOR VARIABLE PACKET SIZES OR VARIABLE RELIABILITY REQUIREMENTS FOR WIRELESS NETWORKS

    公开(公告)号:US20230199757A1

    公开(公告)日:2023-06-22

    申请号:US17996186

    申请日:2020-04-15

    CPC classification number: H04W72/1268 H04W72/23 H04W72/54

    Abstract: According to an example embodiment, an apparatus includes at least one processor; and at least one memory including computer program code; the at least one memory and the computer program code configured to, with the at least one processor, cause the apparatus at least to: receive, by a user device, a configuration associated with a first configured grant that is allocated to the user device and an indication of availability of resources associated with at least one second configured grant; and define, by the user device based on an amount of data to be transmitted, a latency requirement and/or a reliability requirement, that a transmission is to be performed by the user device using both the configuration associated with the first configured grant and at least part of the resources associated with the at least one second configured grant, and perform the transmission accordingly.

    REDUCING OVERHEAD FOR QOS MONITORING OF V2X SERVICES

    公开(公告)号:US20220361028A1

    公开(公告)日:2022-11-10

    申请号:US17622530

    申请日:2019-06-28

    Abstract: The present invention provides apparatuses, methods, systems, computer programs, computer program products and computer-readable media for reducing overhead for Quality-of-service (QoS) monitoring of vehicle-to-everything (V2X) services. The method comprises receiving, at a user equipment, from a serving network, a request for a Quality-of-Service (QoS) monitoring session, making a first determination, at the user equipment, whether the user equipment is relevant for the request, based on the content of the request, making a second determination, at the user equipment, if it is determined in the first determination that the user equipment is relevant, whether the request is received in dedicated signaling or common signaling, deciding, at the user equipment, whether or not to initiate the requested QoS monitoring session based on the second determination.

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