公开(公告)号：US20220287032A1

公开(公告)日：2022-09-08

申请号：US17751403

申请日：2022-05-23

Applicant: QUALCOMM Incorporated

Inventor： Renqiu Wang ,  Hao Xu ,  Wei Zeng ,  Jing Jiang ,  Tingfang Ji

IPC: H04W72/04 ,  H04L5/00 ,  H04B17/336 ,  H04B7/0413 ,  H04L1/00

Abstract: Methods, systems, and devices for wireless communication are described. A user equipment (UE) and a base station may support switching from one waveform to another on uplink channels. For example, a UE and a base station may utilize both frequency division multiplexing (SC-FDM) waveform and an orthogonal frequency division multiplexing (OFDM) waveforms based on channel conditions and other factors. In some examples, a UE may switch for some uplink channels, and use a single waveform for other channels. For example, switching waveforms for channels that utilize frequency domain code division multiplexing (CDM) channel may interrupt the orthogonality of multiplexed transmissions. A UE may transition from one waveform to another either autonomously or based on an explicit indication from a base station. If a UE switches autonomously, it may send an indication of the transition to the serving base station.

公开(公告)号：US11419099B2

公开(公告)日：2022-08-16

申请号：US16664708

申请日：2019-10-25

Applicant: QUALCOMM Incorporated

Inventor： Jing Jiang ,  Muhammad Nazmul Islam ,  Wei Zeng ,  Sundar Subramanian ,  Joseph Binamira Soriaga ,  Juergen Cezanne ,  Tingfang Ji ,  Bilal Sadiq ,  Junyi Li

IPC: H04W72/04 ,  H04L5/00 ,  H04L5/14 ,  H04W72/00 ,  H04W72/08 ,  H04W72/12

Abstract: Methods and apparatuses for wireless communication are provided. A transmitting apparatus receives an indication to use multiple subframes to send uplink control information, codes the uplink control information over the multiple subframes based on the indication, and sends the coded uplink control information via the multiple subframes. Sending the coded uplink control information includes transmitting acknowledgement information (ACK) of a current downlink-centric self-contained subframe in an uplink acknowledgement portion of the current downlink-centric self-contained subframe, bundling ACK bits of multiple downlink-centric self-contained subframes and encoding the bundled ACK bits to generate parity acknowledgement bits associated with systematic acknowledgement bits, transmitting the systematic acknowledgement bits in each uplink acknowledgement portion of the multiple downlink-centric self-contained subframes, and transmitting the parity acknowledgement bits associated with the acknowledgement information bits of the multiple downlink-centric self-contained subframes in an uplink-centric self-contained subframe that is sequentially subsequent to the multiple downlink-centric self-contained subframes.

公开(公告)号：US11374711B2

公开(公告)日：2022-06-28

申请号：US16538548

申请日：2019-08-12

Applicant: QUALCOMM INCORPORATED

Inventor： Joseph Binamira Soriaga ,  Jing Jiang ,  Krishna Kiran Mukkavilli ,  Pavan Kumar Vitthaladevuni ,  Naga Bhushan ,  Tingfang Ji ,  John Edward Smee

IPC: H04L5/00 ,  H04B7/0452 ,  H04B7/06

Abstract: Systems and techniques are disclosed to enhance the efficiency of available bandwidth between UEs and base stations. A UE transmits a sounding reference signal (SRS) to the base station. The base station characterizes the uplink channel based on the SRS received and, using reciprocity, applies the channel characterization for the downlink channel. As part of applying the channel information, the base station forms the beam to the UE based on the uplink channel information obtained from the SRS. The UE may include an array of antennas, each UE transmitting a different SRS that the base station receives and uses to characterize the downlink. Multiple UEs (or a single UE with multiple antennas) transmit SRS at the same time and frequency allocation (non-orthogonal), but with each sending its own unique SRS. Further, multiple UEs (or a single UE with multiple antennas) may send their SRS at unique time/frequency allocations (orthogonal).

公开(公告)号：US11363572B2

公开(公告)日：2022-06-14

申请号：US15458017

申请日：2017-03-13

Applicant: QUALCOMM Incorporated

Inventor： Renqiu Wang ,  Hao Xu ,  Wei Zeng ,  Jing Jiang ,  Tingfang Ji

IPC: H04W72/04 ,  H04L5/00 ,  H04B17/336 ,  H04B7/0413 ,  H04L1/00 ,  H04L27/00

Abstract: Methods, systems, and devices for wireless communication are described A user equipment (UE) and a base station may support switching from one waveform to another on uplink channels. For example, a UE and a base station may utilize both frequency division multiplexing (SC-FDM) waveform and an orthogonal frequency division multiplexing (OFDM) waveforms based on channel conditions and other factors. In some examples, a UE may switch for some uplink channels, and use a single waveform for other channels. For example, switching waveforms for channels that utilize frequency domain code division multiplexing (CDM) channel may interrupt the orthogonality of multiplexed transmissions. A UE may transition from one waveform to another either autonomously or based on an explicit indication from a base station. If a UE switches autonomously, it may send an indication of the transition to the serving base station.

公开(公告)号：US11343822B2

公开(公告)日：2022-05-24

申请号：US16218167

申请日：2018-12-12

Applicant: QUALCOMM Incorporated

Inventor： Gabi Sarkis ,  Chao Jin ,  Amir Aminzadeh Gohari ,  Yi Huang ,  Jing Jiang ,  Wanshi Chen

IPC: H04W80/08 ,  H04W72/04 ,  H04L1/00

Abstract: Certain aspects of the present disclosure generally relate to wireless communications and, more particularly, to methods and apparatus for coded-bit allocation for UCI segmentation. An exemplary method that may be performed by a wireless device generally includes generating coded bits of uplink control information (UCI) to be transmitted as one or more segments, applying one or more rules to ensure an integer number of bits are allocated to each of the one or more segments, and transmitting the UCI in the segments according to the assignment.

公开(公告)号：US11324006B2

公开(公告)日：2022-05-03

申请号：US16407937

申请日：2019-05-09

Applicant: QUALCOMM Incorporated

Inventor： Wei Yang ,  Jing Jiang ,  Yi Huang ,  Renqiu Wang ,  Wanshi Chen ,  Peter Gaal ,  Chih-Ping Li ,  Tingfang Ji ,  Seyedkianoush Hosseini

IPC: H04W72/04 ,  H04W72/14 ,  H04L5/00 ,  H04W76/27 ,  H04W72/12 ,  H04L1/18 ,  H04W24/08

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may determine that signaling associated with a resource allocation is associated with a service type. The UE may identify a time-domain resource, for a transmission associated with the service type, in connection with determining that the signaling associated with the allocation is associated with the service type. Numerous othNo errors found.er aspects are provided.

公开(公告)号：US11310838B2

公开(公告)日：2022-04-19

申请号：US16273886

申请日：2019-02-12

Applicant: QUALCOMM Incorporated

Inventor： Chih Ping Li ,  Jing Jiang ,  Jing Sun ,  Wanshi Chen ,  Seyedkianoush Hosseini ,  Jay Kumar Sundararajan ,  Yi Huang

IPC: H04W74/08 ,  H04L5/00 ,  H04W72/04 ,  H04L5/14 ,  H04W76/11 ,  H04L1/16 ,  H04W72/12

Abstract: Certain aspects of the present disclosure provide techniques and apparatus for signaling channel preemption indications that enable a user equipment (UE) of a first type to take one or more actions on resources that are re-allocated to an UE of a second type. An exemplary method generally includes determining that resources allocated for a scheduled transmission by a first user equipment (UE) of a first type overlaps with uplink channel resources allocated to a second UE of a second type. The method also includes signaling, based on the determination, an uplink preemption indication (ULPI), to the second UE, that identifies at least some of the overlapping resources.

公开(公告)号：US11303392B2

公开(公告)日：2022-04-12

申请号：US15919157

申请日：2018-03-12

Applicant: QUALCOMM Incorporated

Inventor： Jing Sun ,  Seyedkianoush Hosseini ,  Jing Jiang

IPC: H04L1/18 ,  H04L1/16 ,  H04L1/00 ,  H04L1/22 ,  H04B7/0417

Abstract: In an aspect of the disclosure an apparatus, e.g., a base station, maybe configured to receive, from a UE, ACK/NACK feedback indicating that a subset of CBGs of a set of transmitted CBGs failed to be properly decoded. The apparatus maybe further configured to retransmit the subset of CBGs based on the ACK/NACK feedback and transmit information indicating the CBGs being retransmitted. In one configuration, a TB of new data maybe transmitted with the retransmitted subset of CBGs in a subframe/slot. In an aspect, a UE may be configured to determine that one or more CBGs of a received set of CBGs failed to be properly decoded at the UE, and send ACK/NACK feedback indicating the one or more CBGs that failed to be decoded. The UE maybe further configured to receive a retransmission of CBGs in the set of CBGs, and information indicating the retransmitted CBGs.

公开(公告)号：US11284329B2

公开(公告)日：2022-03-22

申请号：US16853086

申请日：2020-04-20

Applicant: QUALCOMM Incorporated

Inventor： Piyush Gupta ,  Tingfang Ji ,  Chong Li ,  Shailesh Patil ,  Joseph Binamira Soriaga ,  Jing Jiang ,  Wei Zeng ,  Alexei Yurievitch Gorokhov ,  Junyi Li

IPC: H04W40/24 ,  H04W8/00 ,  H04W72/02 ,  H04W74/08 ,  H04W64/00 ,  H04W92/18

Abstract: Device detection in networks with mixed mobility devices is discussed. Devices in the network first determine a discovery mode from a plurality of discovery modes, wherein the determining is based on a mobility state of the wireless device. The device identifies a set of resources associated with the determined discovery mode, wherein each of the plurality of discovery modes is provisioned with separate resources. A discovery signal is transmitted using the identified set of resources according to the discovery mode. Thus, devices with higher mobility will generally send discovery signals more often than devices that are static or semi-static.

公开(公告)号：US11228394B2

公开(公告)日：2022-01-18

申请号：US16765066

申请日：2018-09-24

Applicant: Kai Chen ,  Changlong Xu ,  Jing Jiang ,  Gabi Sarkis ,  Hao Xu ,  Qualcomm Incorporated

Inventor： Kai Chen ,  Changlong Xu ,  Jing Jiang ,  Gabi Sarkis ,  Hao Xu

IPC: H04L1/00 ,  H03M13/45

Abstract: Methods, systems, and devices for wireless communications are described. In some systems, wireless devices may encode and decode transmissions using polar codes. A transmitting device may encode a payload based on a selected payload size. For example, the transmitting device may construct a bit vector including payload bits, parity bits, frozen bits, or some combination of these, and may modify the bits or the order of the bits based on the selected payload size. The device may generate a polar-encoded codeword based on this bit vector, and may transmit the polar-encoded codeword to a receiving device. The receiving device may blind decode the polar-encoded codeword, and may determine the correct payload size based on the decoded bit vector. For example, the device may perform decoding or may check decoded bits based on a payload size hypothesis, where the decoding may fail for any incorrect payload size hypothesis.