HYBRID CLOSED-LOOP MULTIPLE-INPUT MULTIPLE-OUTPUT AND TRANSPARENT DIVERSITY SCHEMES

    公开(公告)号:US20230163819A9

    公开(公告)日:2023-05-25

    申请号:US17255134

    申请日:2019-06-24

    CPC classification number: H04B7/0456

    Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) having partially coherent antennas may be configured for simultaneous transmissions on groups of antennas To achieve the benefits of simultaneous transmissions using groups of antenna that are partially coherent, without having the transmissions affect each other, the UE may apply a hybrid closed-loop multiple-input multiple-output (MIMO) scheme among each antenna in the antenna groups where phase coherence can be maintained Following the hybrid closed-loop MIMO scheme, the UE may apply a transparent diversity scheme across each antenna of the groups. Alternatively, the UE may first apply the transparent diversity scheme and next apply the hybrid closed-loop MIMO scheme. By applying a hybrid closed-loop MIMO scheme, and a transparent diversity scheme, the UE may fully realize its resources and contribute to an improved spatial diversity for a MIMO system.

    Strategic mapping of uplink resources

    公开(公告)号:US11641262B2

    公开(公告)日:2023-05-02

    申请号:US16896150

    申请日:2020-06-08

    Abstract: Aspects of the disclosure relate to implied and explicit mapping of uplink (UL) resources for acknowledgment communications from a user equipment (UE). In some examples disclosed herein, implied mapping may include indexing of information elements in a downlink (DL) communication. The explicit mapping may include information elements in the DL communication configured to explicitly provide a location of an UL resource. Other aspects, embodiments, and features are also claimed and described.

    Mitigation of crowded UL SPS feedback transmissions

    公开(公告)号:US11621822B2

    公开(公告)日:2023-04-04

    申请号:US17213838

    申请日:2021-03-26

    Abstract: This disclosure provides systems, devices, apparatus, and methods, including computer programs encoded on storage media, for mitigation of crowded UL SPS feedback transmissions. A UE may receive, from a base station, a plurality of SPS PDSCHs in a plurality of DL slots, and determine that at least one UL transmission including HARQ-ACK feedback associated with the plurality of SPS PDSCHs overlaps in time with the plurality of DL slots. Hence, the UE may delay the at least one UL transmission including the HARQ-ACK feedback associated with the plurality of SPS PDSCHs to one or more subsequent slots based on a bitmap indicative of the one or more subsequent slots.

    CARRIER SELECTION FOR PUCCH REPETITION WITH PUCCH CARRIER SWITCHING

    公开(公告)号:US20230100345A1

    公开(公告)日:2023-03-30

    申请号:US17449638

    申请日:2021-09-30

    Abstract: Aspects are provided which allow a UE configured with PUCCH repetitions to determine, in response to an indication from a base station to switch carriers for PUCCH transmissions, which CCs of a PUCCH group are configured for PUCCH repetitions, when CCs are configured for PUCCH repetitions, what resources in CCs are configured for PUCCH repetitions, and/or how to count PUCCH repetitions in configured CCs. For instance, the UE may receive a PUCCH configuration from a base station indicating PUCCH repetitions, receive an indication from the base station to switch between CCs in a PUCCH group for PUCCH transmissions, and determine at least one of the following configured by the base station: a subset of the CCs for the PUCCH repetitions, a time pattern of the CCs for the PUCCH repetitions, a resource allocation for each of the PUCCH repetitions, or a count for each of the PUCCH repetitions.

    SOFT-INFORMATION TO HELP BASE STATION WITH DUPLEX CONFIGURATION

    公开(公告)号:US20230091901A1

    公开(公告)日:2023-03-23

    申请号:US17478073

    申请日:2021-09-17

    Abstract: Methods, systems, and devices for wireless communication are described. A user equipment (UE) may monitor for one or more downlink transmissions from a base station based at least in part on a grant identifying resources for the one or more downlink transmissions. The UE may determine feedback information for each of the one or more downlink transmissions based at least in part on the monitoring. The UE may identify, based at least in part on the monitoring, one or more duplexing parameters to be requested to the base station for subsequent communications between the UE and the base station, the one or more duplexing parameters pertaining to operation of the UE in at least one of a full duplex communications mode or a half duplex communications mode. The UE may transmit a feedback message indicating the feedback information and the one or more duplexing parameters to the base station.

    TECHNIQUES FOR REPORTING CHANNEL STATE INFORMATION PERIODICITY

    公开(公告)号:US20230081579A1

    公开(公告)日:2023-03-16

    申请号:US17471427

    申请日:2021-09-10

    Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) configured for a periodic channel stat information (CSI) reference signal (CSI-RS) configuration may request an update for one or more parameters of the periodic CSI-RS configuration. For example, the UE may transmit request to a base station for a longer periodicity based on detecting a low Doppler scenario or little variance to wireless channel conditions, or the UE may request a shorter periodicity based on detecting a high Doppler scenario or high variance to wireless channel conditions. The base station may update a configuration for CSI or for CSI-RS based on the request. For example, the base station may update a periodicity for the periodic CSI-RS configuration based on the requested periodicity.

    Uplink collision handling
    230.
    发明授权

    公开(公告)号:US11606814B2

    公开(公告)日:2023-03-14

    申请号:US16927689

    申请日:2020-07-13

    Abstract: Methods, systems, and devices are described for handling transmissions or channels in wireless communications that collide with one another. The described techniques relate to handling the collision between multiple overlapping channels (e.g., two or more channels of the same priority). For example, a collision resolution configuration may include resolving the collisions among the channels of the same priority first (e.g., feedback information transmissions first, and then control information), among the channels of the same service type first (e.g., normal channels first, and then low latency channel(s)), or across all of the channels of all priorities at once. Collisions may be resolved by dropping or rescheduling overlapping information from the lower priority transmission(s) or channel(s) in consideration of the higher priority transmission(s) or channel(s), or by multiplexing or piggybacking overlapping information from a first priority transmission(s) or channel(s) with a second priority transmission(s) or channel(s).

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