MULTICAST/BROADCAST SERVICE ALERT
    2.
    发明公开

    公开(公告)号:US20230345509A1

    公开(公告)日:2023-10-26

    申请号:US18044779

    申请日:2021-10-08

    CPC classification number: H04W72/30 H04W72/12 H04W72/232

    Abstract: Methods, systems, and devices for wireless communications are described. Some wireless communications systems may support multicast communications, which may relate to a multicast service (for example, a multimedia broadcast multicast service (MBMS)). A communications device such as a UE may transition from an inactive or idle state to a connected state to receive multicast services and provide feedback to the network. A wireless network may implement different techniques to trigger the UE to transition from the idle or inactive state into the RRC connected state to receive multicast services. For example, the UE may receive a trigger message that indicates that the one or more multicast services are available for use by the UE, and the UE may determine whether to transition to an RRC connected state to receive the multicast services based on the trigger message.

    PERFORMING MEASUREMENTS ON DEACTIVATED SECONDARY CELLS

    公开(公告)号:US20220167358A1

    公开(公告)日:2022-05-26

    申请号:US17435595

    申请日:2020-03-19

    Abstract: Methods, systems, and devices for wireless communication are described. Generally, the described techniques provide for efficiently performing measurements and other functions in preparation for communicating with a base station on a secondary cell (SCell). In particular, a user equipment (UE) may switch to a certain bandwidth part (BWP) (e.g., a dormant BWP) on an SCell when the SCell is deactivated, and the UE may perform the appropriate measurements and functions on this BWP (e.g., based on reference signals received on this BWP). In some cases, the UE may determine to switch to the BWP for performing the appropriate measurements and functions based on an inactivity timer expiring or based on an indication from a base station (e.g., on a primary cell (PCell)). Accordingly, once the UE activates the SCell for communications with a base station, the latency associated with preparing for communicating on the SCell may be reduced.

    ENABLED/DISABLED HARQ FEEDBACK AND HARQ-LESS PROCESSES

    公开(公告)号:US20220038243A1

    公开(公告)日:2022-02-03

    申请号:US17379861

    申请日:2021-07-19

    Abstract: This disclosure provides systems, devices, apparatus and methods, including computer programs encoded on storage media, for enabled/disabled HARQ feedback and HARQ-less processes. A base station may configure a plurality of logical channels for a UE, where one or more of the logical channels have an associated HARQ process. The UE may receive an allocation of resources from the base station for an uplink grant or a downlink assignment and determine whether the resources have associated HARQ process without HARQ feedback but with HARQ retransmission, an associated HARQ process without HARQ feedback and without HARQ retransmission, or an associated HARQ process with HARQ feedback and with HARQ retransmission. The UE may exchange communication with the base station based on the allocation of resources and the determination of whether the resources have one of the associated HARQ processes.

    TRUNCATED IDENTIFICATION INDICATORS FOR EARLY USER EQUIPMENT (UE) CAPABILITY RETRIEVAL

    公开(公告)号:US20210368547A1

    公开(公告)日:2021-11-25

    申请号:US17326229

    申请日:2021-05-20

    Abstract: A base-station (BS) receiving a random access request from user equipment (a UE), followed by a connection request. The connection request contains UE identity information which may have one of multiple formats depending on whether the access request and/or the connection request indicate that the UE is operating as a bandwidth-limited (BL) UE, an enhanced coverage (CE) UE, or a UE that operates in neither the BL mode nor the CE mode. In the BL mode, the UE may transmit a truncated identifier that is sufficient for the BS to retrieve capability information for the UE prior to transmitting a resource grant to the UE. The BS may then configure the UE and BS to using a radio configuration optimized for the UE's capabilities and transmit the resource grant in accordance with the optimized configuration.

    RANDOM ACCESS PROCEDURES FOR NEW RADIO (NR) NETWORKS

    公开(公告)号:US20210251012A1

    公开(公告)日:2021-08-12

    申请号:US17165272

    申请日:2021-02-02

    Abstract: A method of wireless communication by a user equipment (UE) calculates a propagation delay for sending a message from the UE to a network node, such as a base station, via non-terrestrial communications. The method sends a random access preamble to the base station while accounting for the calculated propagation delay. The method starts a random access response (RAR) window at a first physical downlink control channel (PDCCH) occasion after twice the calculated propagation delay from sending the random access preamble. The method receives a random access response (RAR) message from the base station during the RAR window. The RAR message includes an uplink grant indicating an uplink shared channel resource. Further, the method sends an uplink message to arrive during the uplink shared channel resource while accounting for the calculated propagation delay.

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