公开(公告)号：US20220182878A1

公开(公告)日：2022-06-09

申请号：US17110521

申请日：2020-12-03

Applicant: QUALCOMM Incorporated

Inventor： Yisheng Xue ,  Rajat Prakash ,  Jing Sun ,  Xiaoxia Zhang ,  Chih-Hao Liu

IPC: H04W28/06 ,  H04W72/04 ,  H04L5/00 ,  H04W72/12 ,  H04W8/18

Abstract: Methods, systems, and devices for wireless communications are described. Some wireless communications systems may support improved assignment techniques for dynamic group common physical control channels. In some cases, a user equipment (UE) may receive a control message via a group common control channel. The control message may be monitored by a plurality of UEs, and the control message may include one or more control information segments for a set of UEs of the plurality. The control message may include one or more integer values associated with respective control information segments and a prime number. The integer values and the prime number may be configured to address each UE of the set of UEs. The UE may process the prime number, the integer values, and an integer value that corresponds to an identifier (ID) of the UE to determine applicability of the control message to the UE.

公开(公告)号：US20220174690A1

公开(公告)日：2022-06-02

申请号：US17110184

申请日：2020-12-02

Applicant: QUALCOMM Incorporated

Inventor： Xiaojie Wang ,  Yisheng Xue ,  Jing Sun ,  Junyi Li ,  Piyush Gupta ,  Xiaoxia Zhang ,  Ozcan Ozturk

IPC: H04W72/12

Abstract: Methods, systems, and devices for wireless communications are described to support half-duplex-aware resource selection in sidelink. A physical (PHY) layer at a user equipment (UE) may report available resources to a medium access control (MAC) layer excluding some resources on which the UE is scheduled to receive or other UEs are scheduled to transmit. Specifically, the PHY layer may exclude resources on which the UE is scheduled to receive from a set of resources available for a sidelink transmission from the UE. Similarly, the PHY layer at the UE may exclude resources on which other UEs are scheduled to transmit from a set of resources available for a sidelink transmission to those UEs. A MAC layer at the UE may indicate to the PHY layer (e.g., directly or indirectly) the resources to be excluded when reporting available resources.

公开(公告)号：US20220167311A1

公开(公告)日：2022-05-26

申请号：US17247066

申请日：2020-11-25

Applicant: QUALCOMM INCORPORATED

Inventor： Yisheng Xue ,  Jing Sun ,  Xiaoxia Zhang ,  Peter Gaal ,  Juan Montojo ,  Ozcan Ozturk ,  Sony Akkarakaran ,  Chih-Hao Liu ,  Piyush Gupta ,  Rajat Prakash

IPC: H04W72/02 ,  H04W72/08 ,  H04W72/04 ,  H04W28/02

Abstract: Wireless communications systems and methods related to channel congestion estimations based on virtual collision metrics are provided. A user equipment (UE) may select a plurality of resources from a sidelink resource pool. The UE may request an evaluation of an availability of the plurality of resources and may receive an indication of the availability of the plurality of resources. The UE may further transmit, based on a virtual collision metric associated with the indication of the availability of the plurality of resources, a first sidelink transmission.

公开(公告)号：US20220159499A1

公开(公告)日：2022-05-19

申请号：US17649765

申请日：2022-02-02

Applicant: QUALCOMM Incorporated

Inventor： Yisheng Xue ,  Xiaoxia Zhang ,  Aleksandar Damnjanovic ,  Jing Sun ,  Yongbin Wei

IPC: H04W24/10 ,  H04L5/00 ,  H04W72/04 ,  H04W72/12

Abstract: Uplink clear channel assessment (CCA) status is disclosed as a new uplink control message for new radio (NR) unlicensed (NR-U) operations. When an opportunity for potential uplink transmissions arises for a user equipment (UE), the UE will perform a CCA procedure on available uplink resources. The UE reports the results of the CCA procedure to a serving base station via an uplink control message, such as an uplink control information (UCI), physical uplink control channel (PUCCH), or the like. The serving base station may then use the CCA results in scheduling uplink transmissions and reserving uplink resources.

公开(公告)号：US11324016B2

公开(公告)日：2022-05-03

申请号：US16518843

申请日：2019-07-22

Applicant: QUALCOMM Incorporated

Inventor： Jing Sun ,  Xiaoxia Zhang ,  Yisheng Xue ,  Tamer Kadous ,  Aleksandar Damnjanovic ,  Arumugam Chendamarai Kannan ,  Yongbin Wei

IPC: H04W72/10 ,  H04W72/04 ,  H04W72/12

Abstract: Aspects directed towards a frame-based equipment (FBE) design for a multi-operator New Radio shared spectrum (NR-SS) are disclosed. In one example, at least one contention slot is monitored within a fixed frame period of an unlicensed spectrum, and a determination is performed of whether a channel reservation signal associated with a higher priority node has been detected within the at least one contention slot. For this example, the at least one contention slot is associated with a resource of a subsequent fixed frame period of the unlicensed spectrum. A determination is then made of whether to transmit communication via the resource. Here, the communication is transmitted via the resource, if the channel reservation signal is not detected, and the communication is not transmitted via the resource, if the channel reservation signal is detected.

公开(公告)号：US11317438B2

公开(公告)日：2022-04-26

申请号：US16894584

申请日：2020-06-05

Applicant: QUALCOMM Incorporated

Inventor： Yisheng Xue ,  Aleksandar Damnjanovic ,  Xiaoxia Zhang ,  Jing Sun ,  Yongbin Wei ,  Weiliang Zeng

IPC: H04W74/08 ,  H04B7/024

Abstract: Two-phase floating-instant coordinated multipoint (CoMP) operation is disclosed. The CoMP operation may be initiated by the network via a CoMP cluster of network nodes or by user equipments (UEs) configured for uplink CoMP transmissions. The first phase is initiated after a first node to conduct a successful full listen before talk (LBT) procedure signals the other participating nodes to perform an abbreviated LBT procedure and identifies the beginning of the second phase. After success of the full and abbreviated LBT procedures, each associated node will initiate a first transmission in the first phase. The leading node determines how many of the other nodes are available for transmission and decides, based on that amount and the rules of the network, whether to continue with the CoMP operations. If enough of the other nodes are available, the participating nodes will conduct the CoMP transmissions at the identified beginning of the second phase.

公开(公告)号：US20220061086A1

公开(公告)日：2022-02-24

申请号：US17454023

申请日：2021-11-08

Applicant: QUALCOMM Incorporated

Inventor： Yisheng Xue ,  Aleksandar Damnjanovic ,  Xiaoxia Zhang ,  Jing Sun ,  Yongbin Wei ,  Tamer Kadous

IPC: H04W74/00 ,  H04L5/00 ,  H04W16/14 ,  H04W72/04

Abstract: Coordination of listen before talk (LBT) structure in new radio (NR) unlicensed (NR-U) multi-channel access operations is disclosed. In one aspect, when a base station determines to access shared communication spectrum, it may transmit an LBT structure signal that identifies the current LBT structure. The base station would then attempt access to the shared spectrum according to the LBT structure. In another aspect, a coordination server is used to manage access to the shared spectrum. Each node desiring access registers with the coordination server, which provides access parameters for the accessing node to use that increases the likelihood of successful access. The accessing nodes will transmit the selected access configuration used to access the shared spectrum, wherein the access configuration is selected based on the access parameters.

公开(公告)号：US20220007389A1

公开(公告)日：2022-01-06

申请号：US17337928

申请日：2021-06-03

Applicant: QUALCOMM Incorporated

Inventor： Jing Sun ,  Xiaoxia Zhang ,  Yisheng Xue ,  Tao Luo ,  Peter Gaal ,  Juan Montojo ,  Ozcan Ozturk ,  Rajat Prakash ,  Iyab Issam Sakhnini

IPC: H04W72/12 ,  H04W24/08 ,  H04W72/04 ,  H04W72/02 ,  H04L27/26

Abstract: An on-demand scheduling request (SR) design is disclosed. Such an on-demand or triggered SR operation provides pre-configuration of user equipments (UEs) with triggered SR resources. Base stations may also configure UEs to monitor for a trigger signal within a bit field of control signaling from the base station. Upon detecting the trigger signal within such bit field, the UEs may use the triggered SR resources for transmitting triggered SR requests. Such use of the triggered SR resources may be in response to UEs detected cancelation of other periodic configured SR resources.

公开(公告)号：US11153179B2

公开(公告)日：2021-10-19

申请号：US16565364

申请日：2019-09-09

Applicant: QUALCOMM incorporated

Inventor： Weiliang Zeng ,  Sanaz Barghi ,  Siddhartha Mallik ,  Taesang Yoo ,  Yisheng Xue ,  Xiaoxia Zhang

IPC: H04L12/24 ,  G06N3/04 ,  H04L1/00 ,  H04L5/00 ,  H04L25/02 ,  H04L27/26 ,  H04L12/26 ,  H04W72/08 ,  H04L1/20

Abstract: Methods, systems, and devices for wireless communications are described, and relate to a base station to communicating with a user equipment (UE) over a channel. A first device (for example, the base station or the UE) may use a trained neural network to estimate one or more link performance metrics associated with the channel. Predicting the link level performance may include determining one or more neural network weights associated with one or more input parameters associated with the channel to estimate the one or more link performance metrics. The first device may report feedback to the second device based on the estimated link performance metrics. Based on the feedback, the second device may adapt the link by adjusting channel parameters to improve the reliability or efficacy of later transmissions.

公开(公告)号：US20210307065A1

公开(公告)日：2021-09-30

申请号：US17301028

申请日：2021-03-22

Applicant: QUALCOMM INCORPORATED

Inventor： Yisheng Xue ,  Aleksandar Damnjanovic ,  Xiaoxia Zhang ,  Chih-Hao Liu ,  Yongbin Wei

IPC: H04W74/08 ,  H04W56/00 ,  H04W16/14 ,  H04W52/36

Abstract: Wireless communications systems and methods related to channel access with variable energy detection thresholds in a shared radio frequency band are provided. A wireless communication device, performs a listen-before-talk (LBT) procedure to contend for a maximum channel occupancy time (MCOT) in a first shared radio frequency band, the performing the LBT including performing, in the first shared radio frequency band, first channel sensing during a first portion of an LBT period based on a first energy detection threshold; and performing, in the first shared radio frequency band based on the first channel sensing, second channel sensing during a second portion of the LBT period based on a second energy detection threshold different from the first energy detection threshold; and communicating, in the first shared radio frequency band, a communication signal during the MCOT based on the LBT procedure.