公开(公告)号：US11974271B2

公开(公告)日：2024-04-30

申请号：US17283621

申请日：2018-11-09

Applicant: Qualcomm Incorporated

Inventor： Qiaoyu Li ,  Chao Wei ,  Alberto Rico Alvarino

IPC: H04W72/1268 ,  H04L5/00 ,  H04W12/08 ,  H04W72/0446 ,  H04W72/0453 ,  H04W72/21 ,  H04W74/02

CPC classification number: H04W72/1268 ,  H04L5/0051 ,  H04W12/08 ,  H04W72/0446 ,  H04W72/0453 ,  H04W72/21 ,  H04W74/02

Abstract: Methods, systems, and devices for wireless communications are described for configuring contention-free uplink resources and contention-based uplink resources as preconfigured uplink resources (PUR) available for a user equipment (UE) to transmit one or more uplink transmissions without a specific allocation for the uplink transmission from a base station. Each of two or more UEs may be configured with separate portions of contention-free PUR that each UE may use to transmit a relatively small first uplink communication that provides an indication that the UE will transmit a relatively larger second uplink communication using contention-based PUR. The UE may transmit a buffer status report (BSR) using the contention-free PUR. The first communication may provide an indication of one or more physical layer parameters associated with the second uplink communication. The UE may transmit the second uplink communication using the indicated one or more physical layer parameters via the contention-based uplink resource.

公开(公告)号：US11956079B2

公开(公告)日：2024-04-09

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

CPC classification number: H04L1/0067 ,  H04L1/0041 ,  H04L1/0057 ,  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：US11818768B2

公开(公告)日：2023-11-14

申请号：US17257267

申请日：2019-07-22

Applicant: QUALCOMM Incorporated

Inventor： Ayan Sengupta ,  Alberto Rico Alvarino ,  Le Liu ,  Chao Wei ,  Umesh Phuyal ,  Wanshi Chen

IPC: H04W74/08 ,  H04W76/11 ,  H04L27/26 ,  H04W56/00 ,  H04W74/02

CPC classification number: H04W74/0841 ,  H04L27/2607 ,  H04W56/005 ,  H04W74/02 ,  H04W76/11

Abstract: Apparatus, methods, and computer-readable media for facilitating using of pre-configured UL resources to transmit grant-free data or reference signals are disclosed herein. An example method for wireless communication by a UE includes transmitting, to a base station, a capability of the UE to transmit data in a first message of a random access procedure. The example method also includes receiving pre-configured UL resources from the base station. The example method also includes transmitting data in the first message of the random access procedure using the pre-configured UL resources.

公开(公告)号：US11792843B2

公开(公告)日：2023-10-17

申请号：US16961207

申请日：2018-01-09

Applicant: Qualcomm Incorporated

Inventor： Peng Cheng ,  Chao Wei ,  Yu Zhang ,  Hao Xu ,  Linhai He

IPC: H04W74/00 ,  H04W74/08 ,  H04W16/28 ,  H04W76/18 ,  H04L5/00 ,  H04W76/27 ,  H04B7/06

CPC classification number: H04W74/008 ,  H04B7/0626 ,  H04L5/0051 ,  H04L5/0092 ,  H04W16/28 ,  H04W74/0833 ,  H04W76/18 ,  H04W76/27

Abstract: Methods, systems, and devices for wireless communications in a multiple bandwidth part environment are described. In response to a serving beam failure in an active bandwidth part, the UE may determine a level of support provided by the active bandwidth part for a random access procedure, and may determine a contingency (e.g. fallback) bandwidth part that supports the random access procedure. In some cases, the UE may identify the contingency bandwidth as an initial bandwidth part used by the UE for a prior random access procedure. In some cases, the base station may send to the UE, an explicit indication of the contingency bandwidth part. In some cases, the UE may identify the contingency bandwidth part based on a reference signal. Upon determining the contingency bandwidth part, the UE may perform the random access procedure using the contingency bandwidth part.

公开(公告)号：US11791874B2

公开(公告)日：2023-10-17

申请号：US15741196

申请日：2015-08-14

Applicant: QUALCOMM Incorporated

Inventor： Chao Wei ,  Yu Zhang

IPC: H04B7/0456 ,  H04B7/06 ,  H04W24/10

CPC classification number: H04B7/0469 ,  H04B7/0478 ,  H04B7/063 ,  H04B7/0639 ,  H04W24/10 ,  H04B7/065 ,  H04B7/0626 ,  H04B7/0632

Abstract: Methods, systems, and devices are described for wireless communication. The UE may identify, at a user equipment (UE), a codebook type indicator (CTI) that indicates a codebook among a set of codebooks, such that the codebook may be associated with a two-dimensional antenna port structure of a base station, select a precoding matrix indicator (PMI) based on the CTI, and transmit a channel state information (CSI) report including the PMI. The UE may also receive, at a UE, a first antenna port configuration parameter associated with an antenna port structure of a base station, determine, based on the first antenna port configuration parameter, a second antenna port configuration parameter associated with the antenna port structure, then transmit or receiving data at the UE based on the first antenna port configuration parameter and the second antenna port configuration parameter.

公开(公告)号：US11785602B2

公开(公告)日：2023-10-10

申请号：US16623362

申请日：2018-06-13

Applicant: Qualcomm Incorporated

Inventor： Liangming Wu ,  Yu Zhang ,  Chao Wei ,  Chenxi Hao ,  Wanshi Chen

IPC: H04W72/21 ,  H04L1/00 ,  H04L5/00

CPC classification number: H04W72/21 ,  H04L1/0026 ,  H04L5/0055

Abstract: Methods, systems, and devices are described for wireless communications that support transmitting channel state information (CSI) feedback utilizing flexible uplink control resources. A method may include determining a size of a frequency subband corresponding to components of a CSI feedback report based on configuration signaling or a size of allocated uplink control resources. A method may include encoding a CSI report into a single packet and transmitting the single packet over uplink control resources. A method may include encoding a first plurality of components of a CSI report in a first packet, encoding a second plurality of components of the CSI report in a second packet, and mapping the packets to uplink control resources. A method may include transmitting a first plurality of components of a CSI report on a first slot and a second plurality of components of the CSI report on one or more subsequent slots.

公开(公告)号：US20230300652A1

公开(公告)日：2023-09-21

申请号：US17997612

申请日：2021-06-11

Applicant: QUALCOMM Incorporated

Inventor： Min Huang ,  Chao Wei ,  Hao Xu

IPC: H04W24/10 ,  H04W24/08 ,  H04B7/06

CPC classification number: H04W24/10 ,  H04W24/08 ,  H04B7/0626

Abstract: Aspects of the disclosure relate to a wireless user equipment (UE) configured to receive a downlink in a network configured for full duplex communication. The UE receives from the network an indication of one or more candidate two-dimensional hypotheses for channel state information (CSI) reporting. The UE measures interference of a signal from the aggressor UE, and based on the measurement, determines one or more preferred two-dimensional hypotheses, from the candidate two-dimensional hypotheses. The UE may further determine one or more downlink transmission parameters for a downlink the UE receives, corresponding to the preferred two-dimensional hypotheses. The UE then transmits a CSI report that includes an indication of preferred two-dimensional hypotheses. The CSI report may further include the determined downlink transmission parameters. Other aspects, embodiments, and features are also claimed and described.

公开(公告)号：US11750341B2

公开(公告)日：2023-09-05

申请号：US15733381

申请日：2019-01-10

Applicant: QUALCOMM Incorporated

Inventor： Chao Wei ,  Xiao Feng Wang ,  Alberto Rico Alvarino ,  Le Liu ,  Wanshi Chen

IPC: H04L5/00 ,  H04L27/26 ,  H04W72/0446 ,  H04L27/18 ,  H04B7/0456

CPC classification number: H04L5/003 ,  H04L5/0051 ,  H04L27/18 ,  H04L27/2607 ,  H04L27/2613 ,  H04L27/2614 ,  H04W72/0446 ,  H04B7/0456 ,  H04L5/0007

Abstract: Methods, apparatuses, and computer program products for wireless communication are provided. A user equipment (UE) may be configured to determine a phase rotation for a symbol based at least in part on a tone index. The UE may be configured to apply the phase rotation to the received symbol, and transmit the uplink symbol. Numerous other aspects are provided.

公开(公告)号：US20230247623A1

公开(公告)日：2023-08-03

申请号：US18004531

申请日：2020-08-14

Applicant: QUALCOMM Incorporated

Inventor： Chenxi Hao ,  Yu Zhang ,  Chao Wei ,  Fang Yuan ,  Liangming Wu ,  Wanshi Chen ,  Hao Xu

IPC: H04W72/1268 ,  H04W72/02 ,  H04W72/21

CPC classification number: H04W72/1268 ,  H04W72/02 ,  H04W72/21

Abstract: This disclosure provides systems, methods and apparatus, including computer programs encoded on computer storage media, for transmitting a channel state information (CSI) report from a user equipment (UE). The CSI report may be a UE initiated CSI report or may be based on a downlink grant. The UE may determine to transmit the CSI report in response to a measurement of a CSI measurement resource or in response to a downlink grant requesting the CSI. The UE may determine a reserved uplink resource to carry the CSI based at least in part on configurations associated with the CSI report. The UE may transmit the CSI report on the determined uplink resource.

公开(公告)号：US11658706B2

公开(公告)日：2023-05-23

申请号：US17424088

申请日：2020-01-22

Applicant: QUALCOMM Incorporated

Inventor： Chenxi Hao ,  Yu Zhang ,  Min Huang ,  Chao Wei

IPC: H04B7/0417 ,  H04B7/0456 ,  H04L5/00

CPC classification number: H04B7/0417 ,  H04B7/0456 ,  H04L5/0092

Abstract: Certain aspects of the present disclosure provide techniques for channel state information (CSI) processing for fine granularity CSI. A method for wireless communications by a user equipment (UE) includes receiving a CSI reporting configuration. The CSI reporting configuration includes a number of frequency domain (FD) units and a FD unit size for CSI reporting. The UE determines a number of CSI processing units at the UE to use for processing the CSI report based on the number of FD units or the FD unit size for the CSI report. The UE processes the CSI report based on the determined number CSI processing units. In another method, the UE determines at least one threshold to use for determining whether to update a CSI report based on the number of FD units or the FD unit size for CSI reporting.