公开(公告)号：US11728952B2

公开(公告)日：2023-08-15

申请号：US17444228

申请日：2021-08-02

Applicant: QUALCOMM Incorporated

Inventor： Gabi Sarkis ,  Jing Jiang ,  Wanshi Chen ,  Wei Yang ,  Ying Wang ,  Chih-Ping Li

IPC: H04L5/00 ,  H04L1/00 ,  H04W52/12

CPC classification number: H04L5/0057 ,  H04L1/0026 ,  H04W52/12

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment may determine a block error rate (BLER) target for communications associated with the user equipment; determine a resource allocation pattern for transmission of channel state information reference signals (CSI-RS) based at least in part on the BLER target; and monitor one or more resources, indicated by the resource allocation pattern, for the CSI-RS. Numerous other aspects are provided.

公开(公告)号：US11432324B2

公开(公告)日：2022-08-30

申请号：US16778956

申请日：2020-01-31

Applicant: QUALCOMM Incorporated

Inventor： Jing Lei ,  Linhai He ,  Hung Dinh Ly ,  Seyong Park ,  Naga Bhushan ,  Ying Wang ,  Wanshi Chen ,  Joseph Binamira Soriaga

IPC: H04W74/08 ,  H04W72/14 ,  H04W76/27 ,  H04L1/18 ,  H04L5/00 ,  H04L5/10 ,  H04W24/08 ,  H04W80/02

Abstract: Fallback procedures for user equipments (UEs) are described that provide efficient fallback to a four-step random access procedure from a two-step random access procedure. For example, after transmitting a first message of a two-step random access procedure, a UE may start a fallback timer or counter and monitor for a second message of the two-step random access procedure for the duration of the fallback timer or counter. At the expiration of the fallback timer or counter, the UE may fall back to a four-step random access procedure. In some cases, the UE may transmit multiple repetitions of the first message and monitor for responses after transmitting the repetitions or after each repetition. Additionally or alternatively, the base station may transmit an explicit signal to the UE that may signal to the UE to perform a fallback procedure at a beginning or middle of a random access procedure.

公开(公告)号：US10972219B2

公开(公告)日：2021-04-06

申请号：US16576338

申请日：2019-09-19

Applicant: QUALCOMM Incorporated

Inventor： Ying Wang ,  Jing Jiang ,  Gabi Sarkis ,  Joseph Binamira Soriaga ,  Jing Lei ,  Seyong Park

IPC: H04L27/36 ,  H04L1/00

Abstract: Certain aspects of the present disclosure provide techniques and apparatus for low density parity check (LDPC) interleaving with improved error floor performance. A method for wireless communications that may be provided by a transmitting device is provided. The method generally includes encoding one or more information bits using a LDPC code to produce a coded bit sequence comprising systematic bits and parity bits. The transmitting device stores the coded bit sequence in a circular buffer. The transmitting device performs rate matching on the coded bit sequence. The rate matching includes interleaving the parity bits with a partial interleaver and interleaving the systematic bits and interleaved parity bits with a systematic bit priority mapping (SBPM) interleaver. The transmitting device maps the SBPM interleaved bit sequence to constellation points according to a modulation scheme and transmits the modulated bit sequence.

公开(公告)号：US20200092056A1

公开(公告)日：2020-03-19

申请号：US16573842

申请日：2019-09-17

Applicant: QUALCOMM Incorporated

Inventor： Jing Lei ,  Seyong Park ,  Gabi Sarkis ,  Ying Wang ,  Joseph Binamira Soriaga ,  Jay Kumar Sundararajan ,  Tingfang Ji ,  Naga Bhushan

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

Abstract: Methods, systems, and devices for wireless communications are described that provide sequences of spreading codes and hopping patterns that may be used in non-orthogonal multiple access (NOMA) communications between a user equipment (UE) and a base station. A codebook of spreading codes and the associated hopping patterns may be systematically constructed by closed form formulas or look up table. The base station may receive multiple concurrent transmissions from multiple different UEs, and the sequences of spreading codes and hopping patterns, may be used to identify a particular UE of the multiple UEs.

公开(公告)号：US20200052825A1

公开(公告)日：2020-02-13

申请号：US16534301

申请日：2019-08-07

Applicant: QUALCOMM Incorporated

Inventor： Gabi Sarkis ,  Jing Lei ,  Seyong Park ,  Ying Wang ,  Naga Bhushan ,  Chih-Ping Li ,  Joseph Binamira Soriaga ,  Wanshi Chen

IPC: H04L1/16 ,  H04W72/04 ,  H04L5/00 ,  H04W72/12

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) or multiple UEs may transmit a grant-free uplink transmission to a base station. The base station may monitor resources for the grant-free uplink transmission (e.g., from one or more UEs) and the base station may generate a group feedback message corresponding to whether the base station successfully received the uplink transmission(s). The group feedback message may contain feedback for multiple uplink transmissions from one or multiple UEs. The group feedback message may be transmitted to a UE over a downlink shared channel or a downlink control channel and the UE may receive the group feedback message and may determine whether to retransmit the uplink transmission based on the group feedback message.

公开(公告)号：US20180351696A1

公开(公告)日：2018-12-06

申请号：US15819828

申请日：2017-11-21

Applicant: QUALCOMM Incorporated

Inventor： Yang Yang ,  Jing Jiang ,  Gabi Sarkis ,  Ying Wang ,  Wei Yang

IPC: H04L1/00

Abstract: Methods, systems, and devices that support an efficient sequence-based polar code description are described. In some cases, a wireless device (e.g., a user equipment (UE) or a base station) may transmit a codeword including a set of information bits encoded using a polar code or receive a codeword including a set of information bits encoded using a polar code. As described herein, the wireless device may determine the bit locations of the information bits in the polar code based on a partition assignment vector. Specifically, the wireless device may partition bit-channels for one or more stages of polarization and assign information bits to partitions based on the partition assignment vector. Once the bit locations of the information bits are determined, the wireless device may decode a received codeword or transmit an encoded codeword based on the determined bit locations of the information bits.

公开(公告)号：US09554353B2

公开(公告)日：2017-01-24

申请号：US13889089

申请日：2013-05-07

Applicant: QUALCOMM Incorporated

Inventor： Jubin Jose ,  Ying Wang ,  Junyi Li ,  Sundar Subramanian ,  Xinzhou Wu

IPC: H04W24/00 ,  H04W64/00 ,  H04W88/06 ,  G01S5/00 ,  H04L1/00 ,  G01S19/11 ,  G01S19/48 ,  G01S5/02 ,  H04W72/00

CPC classification number: H04W64/00 ,  G01S5/00 ,  G01S5/0263 ,  G01S19/11 ,  G01S19/48 ,  H04L1/00 ,  H04W72/00 ,  H04W88/06

Abstract: Methods, systems, and devices are described for using location information to determine whether to use at least a portion of a dedicated short range communications (DSRC) spectrum. Current location information of a multi-mode device is determined. The multi-mode device is operating outside of the DSRC spectrum. The current location information is used to determine whether the multi-mode device is located outside of geographical region attributed to DSRC transmissions. Upon determining that the multi-mode device is located outside of the geographical region, at least a portion of the DSRC spectrum is used for transmissions by the multi-mode device.

Abstract translation: 描述了使用位置信息来确定是否使用专用短距离通信（DSRC）频谱的至少一部分的方法，系统和设备。 确定多模式设备的当前位置信息。 多模式设备在DSRC频谱之外运行。 当前位置信息用于确定多模式设备是否位于归因于DSRC传输的地理区域之外。 在确定多模式设备位于地理区域之外时，DSRC频谱的至少一部分被用于多模式设备的传输。