公开(公告)号：US20230232418A1

公开(公告)日：2023-07-20

申请号：US17995537

申请日：2020-05-14

Applicant: QUALCOMM Incorporated

Inventor： Yisheng XUE ,  Olufunmilola Omolade AWONIYI-OTERI ,  Jing SUN ,  Xiaoxia ZHANG ,  Mostafa KHOSHNEVISAN ,  Iyab Issam SAKHNINI ,  Chih-Hao LIU ,  Ozcan OZTURK ,  Changlong XU ,  Jelena DAMNJANOVIC ,  Tao LUO ,  Yan ZHOU ,  Arumugam CHENDAMARAI KANNAN ,  Sony AKKARAKARAN ,  Junyi LI

IPC: H04W72/232 ,  H04W72/11 ,  H04L1/1607

CPC classification number: H04W72/232 ,  H04W72/11 ,  H04L1/1671

Abstract: Wireless communications systems and methods related to piggybacking opportunities for communicating downlink control information (DCI) in a semi-persistent scheduling (SPS) configuration are provided. A first wireless communication device determines a piggybacking opportunity for communicating downlink control information (DCI) in a semi-persistent scheduling (SPS) configuration. The first wireless communication device communicates, with a second wireless communication device, a first communication based on the determined piggybacking opportunity.

公开(公告)号：US20230224925A1

公开(公告)日：2023-07-13

申请号：US18010449

申请日：2020-09-03

Applicant: QUALCOMM Incorporated

Inventor： Luanxia YANG ,  Changlong XU ,  Jing SUN ,  Xiaoxia ZHANG

IPC: H04W72/232 ,  H04W74/08 ,  H04W72/1268

CPC classification number: H04W72/232 ,  H04W74/0808 ,  H04W72/1268

Abstract: Wireless communications systems and methods related frame-based equipment (FBE) communications in a wireless communication network are provided. A method of operating abase station (BS) includes transmitting a channel occupancy time (COT) indicator in a first fixed frame period (FFP) to a user equipment (UE) in frame based equipment (FBE) mode; transmitting downlink control information (DCI) during a window of the first FFP; and receiving uplink (UL) data from the UE during a second FFP following the first FFP according to the DCF A method of operating a UE includes receiving a COT indicator in a first FFP from a base station BS in FBE mode; monitoring a window of the first FFP; receiving a DCI during the window; and transmitting UL data to the BS during a second FFP following the first FFP according to the DCI.

公开(公告)号：US20230224077A1

公开(公告)日：2023-07-13

申请号：US18187255

申请日：2023-03-21

Applicant: QUALCOMM Incorporated

Inventor： Changlong XU ,  Jian Li ,  Chao WEI ,  Jing JIANG ,  Jilei HOU

IPC: H04L1/00

CPC classification number: H04L1/0061 ,  H04L1/0052

Abstract: Methods, systems, and devices for wireless communication are described for dynamic frozen bits of polar codes for early termination and performance improvement. A wireless device may receive a signal comprising a codeword encoded using a polar code. The wireless device may perform decoding of the codeword including at least: parity check of a first subset of decoding paths for making a decision on early termination of decoding of the codeword based on dynamic frozen bits, and generating path metrics for a second subset of the decoding paths that each pass the parity check based on the dynamic frozen bits, and performing error detection on a bit sequence corresponding to one of the second subset of the decoding paths based at part on error detection bits and the generated path metrics. The wireless device may process the information bits based on a result of the decoding.

公开(公告)号：US20230189176A1

公开(公告)日：2023-06-15

申请号：US17999293

申请日：2020-07-15

Applicant: QUALCOMM INCORPORATED

Inventor： Chih-Hao LIU ,  Jing SUN ,  Xiaoxia ZHANG ,  Yisheng XUE ,  Changlong XU ,  Tao LUO ,  Juan MONTOJO ,  Peter GAAL

IPC: H04W56/00 ,  H04L1/00

CPC classification number: H04W56/0015 ,  H04L1/0067

Abstract: Methods, systems, and devices for wireless communications are described. A first user equipment (UE) may determine that that the first UE is scheduled to transmit a control signal and a synchronization signal associated with a synchronization signal block. The first UE may transmit, to a second UE during a first set of symbols within a time period, the control signal associated with a sidelink communication. In some examples, the first UE may transmit, to the second UE during a symbol subsequent to the first set of symbols, the synchronization signal associated with the synchronization signal block, and may communicate with the second UE according to the transmitted control signal and the transmitted synchronization signal.

公开(公告)号：US20230180294A1

公开(公告)日：2023-06-08

申请号：US17906305

申请日：2020-03-19

Applicant: QUALCOMM Incorporated

Inventor： Changlong XU ,  Xiaoxia ZHANG ,  Jing SUN ,  Aleksandar DAMNJANOVIC ,  Andrei Dragos RADULESCU ,  Mostafa KHOSHNEVISAN ,  Tao LUO ,  Juan MONTOJO ,  Wei YANG

IPC: H04W74/08 ,  H04W52/14 ,  H04W52/36 ,  H04W52/10 ,  H04W72/1268

CPC classification number: H04W74/0816 ,  H04W52/10 ,  H04W52/146 ,  H04W52/367 ,  H04W72/1268 ,  H04W74/0866

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment may receive a cancellation indication associated with an uplink transmission on a shared radio frequency spectrum band, the shared radio frequency spectrum band having a listen-before-talk channel access mechanism to access the shared radio frequency spectrum band; determine, based at least in part on the reception of the cancellation indication associated with the uplink transmission on the shared radio frequency spectrum band, whether the uplink transmission is to be cancelled or transmitted at a reduced transmit power; and when the uplink transmission is to be transmitted at the reduced transmit power, transmitting the uplink transmission at the reduced transmit power. Numerous other aspects are provided.

公开(公告)号：US20230085389A1

公开(公告)日：2023-03-16

申请号：US17800867

申请日：2020-02-28

Applicant: QUALCOMM Incorporated

Inventor： Xiaoxia ZHANG ,  Changlong XU ,  Jing SUN

IPC: H04W74/08

Abstract: Aspects of the present disclosure provide for managing random access channel (RACH) procedures in wireless communication systems. In some examples, a UE includes a processor, a transceiver communicatively coupled to the processor and configured to communicate with a scheduling entity in the wireless communication network, and a memory communicatively coupled to the processor. The processor is configured to receive a signal from a base station at the beginning of a fixed frame period during a two-step random access procedure, determine whether a resource for a transmission occasion overlaps one or more symbols located at an edge of the fixed frame period, and discard the resource for the transmission occasion at the UE when the resource overlaps the one or more symbols located at the edge of the fixed frame period.

公开(公告)号：US20230056647A1

公开(公告)日：2023-02-23

申请号：US17759685

申请日：2020-03-16

Applicant: QUALCOMM INCORPORATED

Inventor： Xiaoxia ZHANG ,  Changlong XU ,  Jing SUN

IPC: H04W74/08 ,  H04W72/12

Abstract: Methods, systems, and devices for multi-channel wireless communications using shared radio frequency spectrum are provided. Prior to multi-channel transmissions, a user equipment (UE) may perform a separate listen before talk (LBT) procedure for each channel. Prior to performing the LBT procedures, the UE may identify a set of channels that are to be used for the multi-channel transmission, where the set of channels may include less channels than are allocated or configured to the UE for a slot. The UE identify the set of channels based on one or more multiplexing and prioritization procedures for uplink communications that are allocated or configured for a slot, and determine the set of uplink channels after performing the multiplexing and prioritization procedures. In some cases, the multiplexing and prioritization procedures may include intra-UE multiplexing and prioritization procedures, inter-UE multiplexing and prioritization procedures, or combinations thereof.

公开(公告)号：US20220416942A1

公开(公告)日：2022-12-29

申请号：US17929942

申请日：2022-09-06

Applicant: QUALCOMM Incorporated

Inventor： Changlong XU ,  Chao WEI ,  Jing JIANG ,  Jilei HOU ,  Yang YANG ,  Gabi SARKIS

IPC: H04L1/00 ,  H04L1/08

Abstract: Aspects of the disclosure relate to rate-matching a stream of bits encoded using polar codes. An exemplary method generally includes determining a mother code size (N) for transmitting an encoded stream of bits based, at least in part, on a minimum supported code rate for transmitting the encoded stream of bits (Rmin), a control information size of the encoded stream of bits (K), a number of coded bits for transmission (E), and a maximum mother code size (Nmax), encoding a stream of bits using a polar code of size (N, K) and storing the encoded stream of bits in a circular buffer, and performing rate-matching on the stored encoded stream of bits based, at least in part, on a comparison among the mother code size (N), the control information size of the encoded stream of bits (K), and the number of coded bits for transmission (E).

公开(公告)号：US20220304014A1

公开(公告)日：2022-09-22

申请号：US17596065

申请日：2019-06-28

Applicant: QUALCOMM Incorporated

Inventor： Qiaoyu LI ,  Chao WEI ,  Chenxi HAO ,  Liangming WU ,  Yu ZHANG ,  Yuwei REN ,  Changlong XU ,  Min HUANG ,  Hao XU ,  Wanshi CHEN

IPC: H04W72/12 ,  H04W72/04

Abstract: Aspects are provided which allow a user equipment (UE) to identify a low-bandwidth (low-BW) CORESET-0 and associated CSS based on reception bandwidth of the UE. The base station may configure different frequency and time-domain resources of the low-BW CORESET in order to optimize resource utilization of the low-BW CORESET-0, and the low-tier UE may identify these resources of CORESET-0 and CSS from the system configuration information received in a master information block (MIB). As a result, low tier UEs may operate in a same cell as legacy UEs without the need for the base station to transmit additional signaling to either legacy UEs or lower tier UEs for the UEs to receive their respective CORESET-0's and identify a physical downlink channel (PDCCH).

公开(公告)号：US20220190957A1

公开(公告)日：2022-06-16

申请号：US17593902

申请日：2019-04-15

Applicant: QUALCOMM Incorporated

Inventor： Liangming WU ,  Changlong XU ,  Jian LI ,  Jing JIANG ,  Wei YANG ,  Ying WANG

IPC: H04L1/00

Abstract: Certain aspects of the present disclosure generally relate to wireless communications and, more particularly, to methods and apparatus for adjusting a number of encoded bits, M, in block puncturing and/or shortening calculations to improve encoding performance. An exemplary method that may be performed by a wireless device generally includes iteratively determining a parameter, Madj, for construction of a polar code of size N for use in encoding K information bits, based on: at least two parameters, α and β, related to how many iterations to use in determining Madj, and a number of encoded bits, M; performing information adjustment allocation of the K information bits to an upper part and a lower part of the polar code based on Madj; and transmitting the upper part and the lower part of the polar code via a wireless medium.