公开(公告)号：US11382027B2

公开(公告)日：2022-07-05

申请号：US16947788

申请日：2020-08-17

Applicant: QUALCOMM Incorporated

Inventor： Aleksandar Damnjanovic ,  Arumugam Chendamarai Kannan ,  Jing Sun ,  Srinivas Yerramalli ,  Andrei Dragos Radulescu ,  Xiaoxia Zhang

IPC: H04W48/16 ,  H04W76/34 ,  H04W76/11 ,  H04W36/36 ,  H04W48/10 ,  H04W48/20 ,  H04W88/08

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a remote radio head may transmit, during a user equipment (UE) RRH discovery procedure with a UE, an RRH identifier to the UE for reporting to a base station (BS) associated with the RRH and the UE; receive, from the BS, communication configuration information based at least in part on transmitting the RRH identifier, wherein the communication configuration information includes at least one of scheduling information or configuration information; and communicate with the UE in accordance with the communication configuration information. Numerous other aspects are provided.

公开(公告)号：US11362768B2

公开(公告)日：2022-06-14

申请号：US16900871

申请日：2020-06-13

Applicant: QUALCOMM Incorporated

Inventor： Srinivas Yerramalli ,  Xiaoxia Zhang ,  Jing Sun

IPC: H04L1/18 ,  H04L1/16 ,  H04L5/00 ,  H04W72/14 ,  H04L1/12

Abstract: Methods, systems, and devices for wireless communication are described. A user equipment (UE) may receive a transport block (TB) of data from a network, decode the TB of data, transmit to the network a first acknowledgement based on a result of the decoding, receive a signal from the network that includes an acknowledgement retransmission request and a TB indication that indicates a TB of data to which the acknowledgement retransmission request relates, determine a second acknowledgement based on the acknowledgement retransmission request and the TB indication, and transmit the second acknowledgement to the network.

公开(公告)号：US11337231B2

公开(公告)日：2022-05-17

申请号：US16910009

申请日：2020-06-23

Applicant: QUALCOMM INCORPORATED

Inventor： Wooseok Nam ,  Jing Sun ,  Tao Luo ,  Xiaoxia Zhang ,  Srinivas Yerramalli ,  Arumugam Chendamarai Kannan ,  Sony Akkarakaran ,  Sungwoo Park

IPC: H04W72/12 ,  H04W24/10

Abstract: Wireless communications systems and methods related to communicating in a communication medium are provided. A base station (BS) receives from a user equipment (UE), feedback information of the UE. The BS determines a schedule for the UE. The schedule includes a scheduling duty cycle based on the feedback information of the UE. The BS communicates with the UE, a communication signal based on the schedule.

公开(公告)号：US20220150965A1

公开(公告)日：2022-05-12

申请号：US17649145

申请日：2022-01-27

Applicant: QUALCOMM Incorporated

Inventor： Xiaoxia Zhang ,  Jing Sun ,  Srinivas Yerramalli ,  Tamer Kadous ,  Yongbin Wei

IPC: H04W74/08 ,  H04W16/14 ,  H04W72/04

Abstract: Aligned listen before talk (LBT) gaps for single operator frame-based equipment (FBE) mode new radio (NR) shared spectrum (NR-SS) is disclosed. Within the FBE mode network, the base station determines a plurality of potential transmission bursts within a fixed frame period. The base station may then reserve a plurality of LBT gaps prior to the starting position of each such transmission burst. The base station communicates the location of each of the LBT gaps to all neighboring network entities and contends for access to the fixed frame period at the beginning of the frame regardless of whether it has data for transmission during the frame. Each neighboring base station that receives the LBT gaps locations will use the same locations in order to align the LBT gaps over the FBE mode network.

公开(公告)号：US11330636B2

公开(公告)日：2022-05-10

申请号：US16854271

申请日：2020-04-21

Applicant: QUALCOMM Incorporated

Inventor： Xiaoxia Zhang ,  Srinivas Yerramalli ,  Jing Sun ,  Aleksandar Damnjanovic ,  Ozcan Ozturk ,  Tao Luo ,  Yongbin Wei

IPC: H04W74/08 ,  H04L27/26 ,  H04L5/00 ,  H04W72/04 ,  H04W36/00 ,  H04W56/00

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may identify that the UE is configured to use a two-step random access channel (RACH) procedure. The two-step RACH procedure may include an uplink request message and a downlink response. The UE may transmit the uplink request message as part of the two-step RACH procedure, and the uplink request message may include a preamble portion that is one of a set of predefined sequences and a payload portion that includes a physical uplink shared channel waveform. The UE may receive the downlink response as part of the two-step RACH procedure and in response to the uplink request message.

公开(公告)号：US11324041B2

公开(公告)日：2022-05-03

申请号：US16654542

申请日：2019-10-16

Applicant: QUALCOMM Incorporated

Inventor： Yan Zhou ,  Tao Luo ,  Srinivas Yerramalli ,  Arumugam Chendamarai Kannan ,  Makesh Pravin John Wilson ,  Xiaoxia Zhang ,  Jing Sun

IPC: H04W74/08 ,  H04W72/04 ,  H04W76/27 ,  H04W80/02 ,  H04W72/12

Abstract: Improved signaling of default and scheduled beams in a Channel Occupancy Time (COT) are provided through a base station that indicates a default or scheduled reception (Rx) or transmission (Tx) beam to a UE for use in the COT. As a result, the base station allows the UE to identify its default or scheduled Rx or Tx beam for its scheduled data at earliest at the beginning of the COT, without having to derive the beam from the QCL of the lowest CORESET ID in a dynamically indicated DCI of the latest monitored slot. The UE can thus more rapidly realize the default or scheduled Rx and/or Tx beam in high unlicensed bands (e.g. 60 GHz) and subsequently communicate with the base station in one or more COTs or a portion of a COT using the default or scheduled Rx or Tx beam.

公开(公告)号：US11310695B2

公开(公告)日：2022-04-19

申请号：US15886400

申请日：2018-02-01

Applicant: QUALCOMM Incorporated

Inventor： Chih-Hao Liu ,  Srinivas Yerramalli ,  Arumugam Chendamarai Kannan ,  Tamer Kadous ,  Ahmed Kamel Sadek

IPC: H04W28/06 ,  H04W72/04 ,  H04W74/08 ,  H04L5/00 ,  H04W48/16 ,  H04W16/14

Abstract: In an embodiment, an access point executes a Clear Channel Assessment (CCA) protocol to determine whether to begin transmission within a DRS Measurement Timing Configuration (DMTC) window. The access point transmits, based on a result of the execution, a multi-subframe DRS within the DMTC window, the multi-subframe DRS including a plurality of DRS subframes that each includes a plurality of symbols.

公开(公告)号：US11284414B2

公开(公告)日：2022-03-22

申请号：US16381277

申请日：2019-04-11

Applicant: QUALCOMM Incorporated

Inventor： Seyed Ali Akbar Fakoorian ,  Jing Sun ,  Xiaoxia Zhang ,  Chih-Hao Liu ,  Srinivas Yerramalli

IPC: H04W72/02 ,  H04W72/12

Abstract: Some wireless communications systems may support different types of communications between base stations and user equipment (UEs), such as mobile broadband (MBB) communications and low latency communications. Low latency communications may be associated with bursty and unpredictable transmissions. As described herein, to facilitate low latency communications and limit the latency associated with waiting on appropriate resources for transmitting low latency data, a base station may schedule downlink low latency transmissions on uplink resources or uplink low latency transmissions on downlink resources. Further, to limit the latency associated with scheduling low latency communications, a base station may be configured with a carrier for transmitting preemption indications (PIs) to one or more UEs to reassign resources for low latency communications. Similarly, in some cases, a UE may be configured with a carrier to transmit scheduling requests (SRs) to request resources for low latency communications.

公开(公告)号：US11251914B2

公开(公告)日：2022-02-15

申请号：US16860984

申请日：2020-04-28

Applicant: QUALCOMM Incorporated

Inventor： Xiaoxia Zhang ,  Srinivas Yerramalli ,  Zhifei Fan ,  Tao Luo ,  Jing Sun

IPC: H04L5/00

Abstract: Methods, systems, and devices for wireless communications are described to enable a user equipment (UE) or a base station to transmit and receive single carrier (SC) waveforms (e.g., corresponding to uplink or downlink transmissions) using an SC transmission configuration. In some cases, a UE and a base station may employ an SC configuration to identify resource elements (REs) for uplink or downlink SC signals. Additionally or alternatively, the UE and the base station may employ an SC configuration with a different cyclic prefix (CP) length in order to change a base amount of REs that may be allocated for an SC transmission, where the different CP length may be either static or dynamic. The base station may transmit an indication of an SC configuration to the UE, and the UE and the base station may process corresponding SC downlink or uplink communications according to the indicated SC configuration.

公开(公告)号：US20220038249A1

公开(公告)日：2022-02-03

申请号：US17382215

申请日：2021-07-21

Applicant: QUALCOMM Incorporated

Inventor： Vasanthan Raghavan ,  Arumugam Chendamarai Kannan ,  Srinivas Yerramalli ,  Tao Luo ,  Xiaoxia Zhang ,  Junyi Li

IPC: H04L5/00 ,  H04W72/04 ,  H04B7/06

Abstract: Methods, systems, and devices for wireless communications are described that provide for a wireless device to declare a default operating frequency. A first wireless device may identify one or more default operating frequencies for communicating over a bandwidth, where the default operating frequencies are predetermined by an antenna array configuration of the first wireless device. The first wireless device may transmit an indication of the one or more default operating frequencies to a second wireless device. The first wireless device or the second wireless device may select communications parameters for communicating over the bandwidth based on the one or more default operating frequencies. The first and second wireless devices may communicate over the bandwidth based on the one or more default operating frequencies.