公开(公告)号：US20200022029A1

公开(公告)日：2020-01-16

申请号：US16584366

申请日：2019-09-26

Applicant: QUALCOMM Incorporated

Inventor： Ahmed Kamel Sadek ,  Yisheng Xue ,  Siddhartha Mallik ,  Tamer Kadous ,  Xiaoxia Zhang ,  Taesang Yoo ,  Michael Mingxi Fan ,  Aleksandar Damnjanovic ,  Yongbin Wei ,  Jing Sun

IPC: H04W28/26 ,  H04W52/24 ,  H04L5/00 ,  H04B7/06

Abstract: A medium reservation framework is disclosed for coexistence of coordinated and uncoordinated wireless networks in licensed spectrum and shared spectrum. The proposed medium reservation framework organically takes into account operating regimes with different numbers of Tx/Rx antennas per node, provides flexibility in trading off medium contention aggressiveness and power saving, leverages the inherent synchronization nature of NR, and covers both coordinated and uncoordinated operation scenarios. Various aspects of the medium reservation framework may be centered on one or more combinations of some basic building blocks, such as an operation grid, synchronization signals, and reservation messages, such as a reservation request signal (RRQ) and one or more a reservation response signals (RRS).

公开(公告)号：US20190110208A1

公开(公告)日：2019-04-11

申请号：US16154537

申请日：2018-10-08

Applicant: QUALCOMM Incorporated

Inventor： Yisheng Xue ,  Siddhartha Mallik ,  Weiliang Zeng ,  Aleksandar Damnjanovic ,  Tamer Kadous

IPC: H04W16/10 ,  H04W48/20 ,  H04W48/16 ,  H04W48/12 ,  H04W72/12 ,  H04W48/02 ,  H04B17/309

Abstract: Methods, systems, and devices for wireless communications are described. An access point of a secondary cluster may identify a first set of access points of a primary cluster scheduled to perform downlink transmissions over a shared radio frequency spectrum band during a transmission opportunity. The access point may identify a second set of access points and may select a first set of blacklisted stations associated with the secondary cluster for the transmission opportunity. In some cases, the selecting is based on the first set of access points and the second set of access points. The access point may then selectively perform at least one downlink transmission to a second set of stations associated with the secondary cluster during the transmission opportunity. In some examples, the second set of stations is based on the first set of blacklisted stations.

公开(公告)号：US20160248675A1

公开(公告)日：2016-08-25

申请号：US15026571

申请日：2013-11-13

Applicant: Ruiming ZHENG ,  Yisheng XUE ,  QUALCOMM INCORPORATED

Inventor： Ruiming Zheng ,  Yisheng Xue

IPC: H04L12/801 ,  H04L12/931

CPC classification number: H04L47/11 ,  H04L47/12 ,  H04L49/00 ,  H04L49/351

Abstract: A method and apparatus for reducing data congestion in Clos networks is disclosed. A congestion detector is provided at an output port of a first layer of the Clos network. A pause timer is provided at an input port of a second layer of the Clos network. The congestion detector generates a feedback message indicating a data congestion level of the output port, and the pause timer determines a pause duration based on the feedback message. For example, the pause duration may be proportional to the congestion level of the output port of the first layer. A pause signal generator may also be provided at the input port to generate a first pause signal based on the pause duration. The pause signal generator may further output the pause signal to a transmitting device to suspend a transmission of data for the pause duration.

Abstract translation: 公开了一种用于减少Clos网络中的数据拥塞的方法和装置。 在Clos网络的第一层的输出端口处提供拥塞检测器。 在Clos网络的第二层的输入端口处提供暂停定时器。 拥塞检测器产生指示输出端口的数据拥塞级别的反馈消息，并且暂停计时器基于反馈消息确定暂停持续时间。 例如，暂停持续时间可以与第一层的输出端口的拥塞级别成比例。 还可以在输入端口处提供暂停信号发生器，以基于暂停持续时间产生第一暂停信号。 暂停信号发生器还可以将暂停信号输出到发送装置，以暂停用于暂停持续时间的数据的发送。

公开(公告)号：US20150372695A1

公开(公告)日：2015-12-24

申请号：US14766740

申请日：2013-03-14

Applicant: Jian LI ,  Changlong XU ,  Yisheng XUE ,  Jilei HOU ,  Yin HUANG ,  QUALCOMM INCORPORATED

Inventor： Jian Li ,  Changlong Xu ,  Yisheng Xue ,  Jilei Hou ,  Yin Huang

IPC: H03M13/11 ,  H04L1/00

CPC classification number: H03M13/1131 ,  H04L1/0045 ,  H04L1/005 ,  H04L1/0057

Abstract: A method of error correction using low density parity check (LDPC) codes is disclosed. A communications device receives a codeword and detects one or more bit errors in the received codeword using an LDPC code. The device then generates a corrected codeword based, at least in part, on a set of unsatisfied check nodes of the LDPC code. The device may determine that the one or more bit errors are associated with an absorption set of the LDPC code. The device may also determine a plurality of candidate codewords based on the set of unsatisfied check node and select the corrected codeword from the plurality of candidate codewords. Each of the plurality of candidate codewords may represent a valid codeword associated with the LDPC code.

Abstract translation: 公开了一种使用低密度奇偶校验（LDPC）码的纠错方法。 通信设备接收码字，并使用LDPC码检测接收到的码字中的一个或多个比特错误。 然后，该设备至少部分地基于LDPC码的一组不满足的校验节点来生成校正码字。 设备可以确定一个或多个比特错误与LDPC码的吸收集相关联。 该设备还可以基于该不满足的校验节点集合来确定多个候选码字，并从多个候选码字中选择校正后的码字。 多个候选码字中的每一个可以表示与LDPC码相关联的有效码字。

公开(公告)号：US12256398B2

公开(公告)日：2025-03-18

申请号：US17315993

申请日：2021-05-10

Applicant: QUALCOMM Incorporated

Inventor： Yisheng Xue ,  Jing Sun ,  Chih-Hao Liu ,  Xiaoxia Zhang ,  Xiaojie Wang ,  Piyush Gupta ,  Peter Gaal ,  Shuanshuan Wu ,  Sony Akkarakaran

IPC: H04W72/04 ,  H04L1/18 ,  H04L1/1812 ,  H04W72/23 ,  H04W92/18

Abstract: Methods, systems, and devices for wireless communications are described. The method may involve a first user equipment (UE) receiving an indication of a set of sidelink resources and an indication of a set of uplink resources for transmitting sidelink feedback information. The first UE may receive a sidelink shared channel transmission from a second UE and upon receiving the sidelink shared transmission, generate feedback information regarding the sidelink shared channel transmission and transmit the feedback information directly to the base station using the set of uplink resources.

公开(公告)号：US12185363B2

公开(公告)日：2024-12-31

申请号：US17370997

申请日：2021-07-08

Applicant: QUALCOMM Incorporated

Inventor： Xiaojie Wang ,  Piyush Gupta ,  Xiaoxia Zhang ,  Jing Sun ,  Yisheng Xue ,  Junyi Li ,  Rajat Prakash ,  Ozcan Ozturk ,  Peter Gaal ,  Sony Akkarakaran ,  Tao Luo ,  Gabi Sarkis

IPC: H04W72/566 ,  H04L1/1812 ,  H04W52/34 ,  H04W72/23

Abstract: Aspects relate to techniques for enhancing sidelink scheduling information to include a priority assigned to a sidelink transmission. For example, a transmitting wireless communication device may receive sidelink scheduling information scheduling a sidelink transmission from a transmitting wireless communication device to a receiving wireless communication device. The sidelink scheduling information may further include a priority indicator associated with the sidelink transmission. The transmitting wireless communication device may then transmit the sidelink transmission to the receiving wireless communication device based on the scheduling information. The priority indicator may further facilitate hybrid automatic repeat request (HARQ) codebook construction on the sidelink and uplink for the transmission of acknowledgement information of the sidelink transmission.

公开(公告)号：US12170991B2

公开(公告)日：2024-12-17

申请号：US18509970

申请日：2023-11-15

Applicant: QUALCOMM Incorporated

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

IPC: H04W72/044 ,  H04W72/0453 ,  H04W92/18

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a first UE may receive, from a second UE, resource reserving sidelink control information that indicates a transmit beam of the second UE and a sidelink resource of the second UE. The first UE may transmit data on the sidelink resource of the second UE using a transmit beam of the first UE that does not spatially overlap with the transmit beam of the second UE. Numerous other aspects are provided.

公开(公告)号：US12143828B2

公开(公告)日：2024-11-12

申请号：US17730969

申请日：2022-04-27

Applicant: QUALCOMM Incorporated

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

IPC: H04W16/00 ,  H04L1/00 ,  H04L5/00 ,  H04W16/14 ,  H04W56/00 ,  H04W72/0453 ,  H04W72/20

Abstract: Methods, systems, and devices for wireless communications are described. A first user equipment (UE) may perform a channel access procedure to gain access to a bandwidth part in a shared spectrum for sidelink communications with a second UE. The first UE may transmit a signal to the second UE using one or more sub-bands of the bandwidth part, and the signal may include one or more sidelink synchronization signal blocks (S-SSBs) multiplexed with frequency resources associated with a physical sidelink shared channel (PSSCH). The one or more S-SSBs may be transmitted using a set of symbol periods of a transmission time interval (TTI) (e.g., a slot) that are preceded by a least four initial symbol periods of the TTI. In some examples, the first UE may transmit a sidelink control information (SCI) message indicating which of the one or more sub-bands include the one or more S-SSBs.

公开(公告)号：US12096432B2

公开(公告)日：2024-09-17

申请号：US17473674

申请日：2021-09-13

Applicant: QUALCOMM Incorporated

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

IPC: H04W72/20 ,  H04W28/06

CPC classification number: H04W72/20 ,  H04W28/06

Abstract: Methods, systems, and devices for wireless communications are described. The method includes receiving a configuration message indicating a group common control resource allocated to a set of UEs that includes the UE, identifying a hashing function assigned to the UE for detecting control messaging communicated via the group common control resource that is addressed to the UE, receiving, via the group common control resource, a control message indicating addressing data and a bitmap, and processing the addressing data using the hashing function and the bitmap to determine applicability of the control message to the UE.

公开(公告)号：US12063639B2

公开(公告)日：2024-08-13

申请号：US17374814

申请日：2021-07-13

Applicant: QUALCOMM Incorporated

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

IPC: H04W72/044 ,  H04W72/0446 ,  H04W72/20

CPC classification number: H04W72/0473 ,  H04W72/0446 ,  H04W72/20

Abstract: Methods, systems, and devices for wireless communications are described. A first user equipment (UE) may receive, from a second UE, a control message that indicates a duration of time the second UE has reserved at least a first subchannel of a first subband of a set of shared spectrum subbands. The duration of time may include a quantity of time periods. The first UE may transmit, during a time period of the quantity of time periods and in a second subchannel of the first subband, a power reservation signal that indicates a transmission power associated with the first UE beginning transmission to a third UE in a second subband of the set of shared spectrum subbands and partway through the time period. The first UE may transmit signaling to the third UE in the second subband partway through the time period and after transmitting the power reservation signal.