公开(公告)号：US10945152B2

公开(公告)日：2021-03-09

申请号：US16276079

申请日：2019-02-14

Applicant: QUALCOMM Incorporated

Inventor： Qingjiang Tian ,  Srinivas Yerramalli ,  Jing Sun ,  Xiaoxia Zhang ,  Chih-Hao Liu

IPC: H04W28/02 ,  H04L12/807 ,  H04W72/04 ,  H04W72/12 ,  H04W16/14 ,  H04W74/00 ,  H04L5/00 ,  H04W74/08

Abstract: Base station contention window update procedures with autonomous uplink (AUL) in a transmission opportunity (TxOP) is discussed. After acquiring a channel and scheduling the TxOP, a base station may transmit control signals to manage communications with served user equipments (UEs). Management of AUL communications in addition to update of the contention window may be determined based on whether the base station has either or both downlink data and scheduled uplink (SUL) transmissions scheduled for the TxOP. Where both downlink and SUL are scheduled, AUL transmissions are allowed, but update of the contention window uses feedback based on the downlink transmissions. Where SUL are scheduled, but no downlink data, AUL are allowed and the contention window is updated using performance information on the uplink transmissions. Finally, where neither data nor SUL are scheduled, the base station deactivate any AUL resources for the TxOP and will refrain from updating the contention window.

公开(公告)号：US10588152B2

公开(公告)日：2020-03-10

申请号：US16252314

申请日：2019-01-18

Applicant: QUALCOMM Incorporated

Inventor： Yan Zhou ,  Gwendolyn Denise Barriac ,  George Cherian ,  Simone Merlin ,  Alfred Asterjadhi ,  Qingjiang Tian ,  Gang Ding

IPC: H04W74/08 ,  H04W74/00 ,  H04W84/12

Abstract: The present disclosure provides techniques for configuring the utilization of request-to-send/clear-to-send (RTS/CTS) protocol procedures based on varying conditions at the STA. For example, an AP may identify one or more conditions, when satisfied, may trigger the STA to either enable or disable uplink (UL) transmissions associated with a RTS/CTS protocol procedure. In some aspects, an AP may determine a transmit opportunity (TXOP) threshold for an STA and may determine whether to broadcast a message having the TXOP threshold to multiple STAs including the STA or unicast the message to the STA. An STA may receive a message from an AP having a TXOP threshold and may replace, based on an indication in the received message, a current TXOP threshold in the STA with the TXOP threshold in the received message. The STA may transmit an UL RTS frame in response to a determination that a planned TXOP duration satisfies the TXOP threshold.

公开(公告)号：US20190313409A1

公开(公告)日：2019-10-10

申请号：US16374593

申请日：2019-04-03

Applicant: QUALCOMM Incorporated

Inventor： Qingjiang Tian ,  Xiaoxia Zhang ,  Jing Sun ,  Kapil Bhattad ,  Srinivas Yerramalli ,  Chih-Hao Liu

IPC: H04W72/04 ,  H04W28/02

Abstract: Methods, systems, and devices for wireless communications are described. The described techniques provide for a base station transmitting to a user equipment (UE) a partial bandwidth configuration for uplink transmissions, where the partial bandwidth configuration may indicate a channel interlace and a portion of a channel bandwidth, for example, for autonomous uplink (AUL) transmissions. The base station may also transmit to the UE an AUL configuration including a group identifier. The UE may determine a starting offset with respect to an AUL subframe for a partial bandwidth transmission based on the group identifier. In some cases, different UEs may be grouped into groups of UEs allocated non-overlapping resources, and UEs allocated overlapping resources may have different starting offsets to begin transmitting. According to the determined starting offset, the UE may perform the partial bandwidth transmission over the channel interlace and the portion of the channel bandwidth.

公开(公告)号：US20190261210A1

公开(公告)日：2019-08-22

申请号：US16276079

申请日：2019-02-14

Applicant: QUALCOMM Incorporated

Inventor： Qingjiang Tian ,  Srinivas Yerramalli ,  Jing Sun ,  Xiaoxia Zhang ,  Chih-Hao Liu

IPC: H04W28/02 ,  H04W72/12 ,  H04W72/04 ,  H04L12/807

Abstract: Base station contention window update procedures with autonomous uplink (AUL) in a transmission opportunity (TxOP) is discussed. After acquiring a channel and scheduling the TxOP, a base station may transmit control signals to manage communications with served user equipments (UEs). Management of AUL communications in addition to update of the contention window may be determined based on whether the base station has either or both downlink data and scheduled uplink (SUL) transmissions scheduled for the TxOP. Where both downlink and SUL are scheduled, AUL transmissions are allowed, but update of the contention window uses feedback based on the downlink transmissions. Where SUL are scheduled, but no downlink data, AUL are allowed and the contention window is updated using performance information on the uplink transmissions. Finally, where neither data nor SUL are scheduled, the base station deactivate any AUL resources for the TxOP and will refrain from updating the contention window.

公开(公告)号：US10278022B2

公开(公告)日：2019-04-30

申请号：US15147793

申请日：2016-05-05

Applicant: QUALCOMM Incorporated

Inventor： Yan Zhou ,  Gwendolyn Denise Barriac ,  Simone Merlin ,  George Cherian ,  Alfred Asterjadhi ,  Qingjiang Tian ,  Gang Ding

IPC: H04W4/02 ,  H04W74/08 ,  H04W74/00 ,  H04W84/12 ,  H04W48/12

Abstract: A method, an apparatus, and a computer-readable medium for wireless communication are provided. The apparatus is configured to determine a communication deferral policy within a BSS associated with the apparatus. The apparatus is configured to receive a message from a second wireless device. The apparatus is configured to determine a message type of the message. The apparatus is configured to determine whether the message is associated with an OBSS based on the determined message type. The apparatus is configured to determine whether to defer communications based on the communication deferral policy, the message type, and whether the message is associated with the OBSS.

公开(公告)号：US20170078887A1

公开(公告)日：2017-03-16

申请号：US15239656

申请日：2016-08-17

Applicant: QUALCOMM Incorporated

Inventor： Gwendolyn Denise Barriac ,  George Cherian ,  Simone Merlin ,  Alfred Asterjadhi ,  Yan Zhou ,  Gang Ding ,  Qingjiang Tian

IPC: H04W16/02 ,  H04W72/04 ,  H04W72/08 ,  H04W74/08 ,  H04B17/318

Abstract: Methods and apparatus for managing reuse of a wireless medium are provided. One method of managing reuse of a wireless medium includes determining, at an access point, whether to allow reuse of the wireless medium by one or more stations in a basic service set (BSS). The method further includes transmitting, upon determining to allow reuse, an indication that reuse of the wireless medium can be permitted for stations meeting a criteria. The method further includes determining one or more reuse parameters. The method further includes transmitting the one or more reuse parameters.

Abstract translation: 提供了用于管理无线介质的重用的方法和装置。 管理无线介质的重用的一种方法包括在接入点处确定是否允许基本服务集（BSS）中的一个或多个站重新使用无线介质。 该方法还包括在确定允许重用时，发送可以允许符合标准的站的无线介质的重用的指示。 该方法还包括确定一个或多个重用参数。 该方法还包括发送一个或多个重用参数。

公开(公告)号：US20140362776A1

公开(公告)日：2014-12-11

申请号：US13912882

申请日：2013-06-07

Applicant: QUALCOMM Incorporated

Inventor： Qingjiang Tian ,  Peerapol Tinnakornsrisuphap ,  Sai Yiu Duncan Ho ,  Bibhu Mohanty ,  Arnaud Meylan

IPC: H04W48/20

CPC classification number: H04W48/20 ,  H04W28/0247 ,  H04W36/08 ,  H04W36/24 ,  H04W48/12

Abstract: An application may be associated with an application endpoint that is accessed via a wireless local area network. In this disclosure, a wireless station may select and associated with one of a plurality of access points that provides better application throughput to the application endpoint. The application throughput may be based upon a combination of the wireless link rate (between the wireless station and the access point) as well as a measured application data rate (from the access point to the application endpoint). An access point may measure and advertise application data rates for a plurality of application endpoints, including one or more servers coupled to the local area network, a gateway to a wide area network, and/or a server coupled to the wide area network.

Abstract translation: 应用可以与经由无线局域网访问的应用端点相关联。 在本公开中，无线站可以选择并与多个接入点之一相关联，以向应用端点提供更好的应用吞吐量。 应用吞吐量可以基于无线链路速率（在无线站和接入点之间）的组合以及测量的应用数据速率（从接入点到应用端点）。 接入点可以测量并通告多个应用端点的应用数据速率，包括耦合到局域网的一个或多个服务器，到广域网的网关和/或耦合到广域网的服务器。

公开(公告)号：US12238696B2

公开(公告)日：2025-02-25

申请号：US17452346

申请日：2021-10-26

Applicant: QUALCOMM Incorporated

Inventor： Qingjiang Tian ,  Jing Sun ,  Xiaoxia Zhang ,  Zhifei Fan ,  Tao Luo ,  Wooseok Nam ,  Ahmed Abdelaziz Ibrahim Abdelaziz Zewail

IPC: H04W72/12 ,  H04L5/00 ,  H04W72/23

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive a grant that schedules multiple downlink communications, wherein the grant includes multiple start and length indicator values (SLIVs) that indicate respective time domain resource allocations (TDRAs) for the multiple downlink communications and a feedback timing indicator that indicates timing of uplink feedback communications for the multiple downlink communications. The UE may determine that there is a conflict between a timing of a first uplink feedback communication for a first downlink communication of the multiple downlink communications and a TDRA for a second downlink communication of the multiple downlink communications. The UE may adjust at least one of the TDRA for the second downlink communication or the timing of the first uplink feedback communication. Numerous other aspects are provided.

公开(公告)号：US12231356B2

公开(公告)日：2025-02-18

申请号：US17444101

申请日：2021-07-30

Applicant: QUALCOMM Incorporated

Inventor： Mohamed Fouad Ahmed Marzban ,  Ahmed Abdelaziz Ibrahim Abdelaziz Zewail ,  Wooseok Nam ,  Tao Luo ,  Xiaoxia Zhang ,  Jing Sun ,  Zhifei Fan ,  Qingjiang Tian

IPC: H04L5/00 ,  H04L27/26 ,  H04W72/0453 ,  H04W72/23

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may determine an amount of time between uplink allocations that is needed for performing frequency retuning during operation at a subcarrier spacing (SCS). The UE may perform frequency retuning in association with hopping from a first set of frequency resources, associated with transmitting a first uplink transmission, to a second set of frequency resources, associated with transmitting a second uplink transmission, during operation at the SCS, wherein the frequency retuning is performed during a set of consecutive unallocated resources determined based at least in part on the amount of time between uplink allocations that is needed for performing frequency retuning. Numerous other aspects are described.

公开(公告)号：US12184569B2

公开(公告)日：2024-12-31

申请号：US17398997

申请日：2021-08-10

Applicant: QUALCOMM Incorporated

Inventor： Mohamed Fouad Ahmed Marzban ,  Zhifei Fan ,  Hemant Saggar ,  Xiaoxia Zhang ,  Wooseok Nam ,  Jing Sun ,  Tao Luo ,  Ahmed Abdelaziz Ibrahim Abdelaziz Zewail ,  Qingjiang Tian

IPC: H04L5/00 ,  H04L27/26

Abstract: Apparatus, methods, and computer-readable media for facilitating reference signal multiplexing with downlink data are disclosed herein. An example method for wireless communication at a user equipment (UE) includes receiving, from a base station, a reference signal configuration associated with at least one of a tracking reference signal (TRS) and a channel state information reference signal (CSI-RS), the reference signal configuration comprising a symbol level rate matching configuration, a precoder configuration, or a guard tone configuration. The example method also includes receiving, from the base station, a transmission comprising at least a reference signal and data based on the reference signal configuration.