公开(公告)号：US11575551B2

公开(公告)日：2023-02-07

申请号：US17040596

申请日：2019-03-25

Applicant: Qualcomm Incorporated

Inventor： Yiqing Cao ,  Wanshi Chen ,  Jing Lei ,  Renqiu Wang

IPC: H04W72/04 ,  H04L27/26 ,  H04L5/00 ,  H04L25/02 ,  H04W72/044

Abstract: Methods, systems, and devices for wireless communications are described. In some systems (e.g., non-orthogonal multiple access (NOMA) systems), a base station may serve a large number of user equipments (UEs) on the uplink. To improve detectability for these uplink transmissions (e.g., if reference signals are not available for the transmissions), the UEs may implement parallel transmissions of preambles with uplink data. A UE may split the uplink data into one or more data layers, and may select one or more preamble layers to transmit superposed with the data layers. These preambles may be sequences known to both the UE and the base station to aid in detectability. The UE may assign different signature sequences to each of these layers based on cross-correlation values (e.g., assigning sequences with higher cross-correlation values to the data layers for improved detectability), and may scramble the layers into a single shared signal for transmission.

公开(公告)号：US11516839B2

公开(公告)日：2022-11-29

申请号：US17328714

申请日：2021-05-24

Applicant: QUALCOMM Incorporated

Inventor： Sony Akkarakaran ,  Tao Luo ,  Peter Gaal ,  Xiao feng Wang ,  Juan Montojo ,  Yi Huang ,  Renqiu Wang ,  Seyong Park

IPC: H04W72/14 ,  H04W72/04

Abstract: Methods, systems, and devices for wireless communication are described that support discontinuous scheduling. A base station may transmit, to a user equipment (UE), a grant of resources of a communication channel over a multiple of aggregated TTIs. The UE may monitor a control channel for the grant of resources transmitted by base station. The base station and the UE may identify a location of an excluded TTI within the plurality of aggregated TTIs. The excluded TTI may correspond to a TTI for communicating synchronization signals, random access channel (RACH) signals, or the like. The base station may communicate with the UE via the resources of the communication channel over at least a subset of the aggregated TTIs based on the grant and the location of the excluded TTI.

公开(公告)号：US11456906B2

公开(公告)日：2022-09-27

申请号：US16991609

申请日：2020-08-12

Applicant: QUALCOMM Incorporated

Inventor： Renqiu Wang ,  Hao Xu ,  Wanshi Chen ,  Peter Gaal ,  Tingfang Ji ,  John Edward Smee

IPC: H04L27/26 ,  H04L5/00 ,  G01S13/50 ,  H04L23/02 ,  H04L25/02

Abstract: Certain aspects of the present disclosure provide techniques for transmitting and processing reference signals, such as DMRS, that may account for mobility characteristics (e.g., that relate to a Doppler measurement) of a wireless node (e.g., a UE), such as Doppler measurements indicating how fast such a device is moving.

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：US11412503B2

公开(公告)日：2022-08-09

申请号：US15465498

申请日：2017-03-21

Applicant: QUALCOMM Incorporated

Inventor： Wanshi Chen ,  Peter Gaal ,  Hao Xu ,  Renqiu Wang ,  Tingfang Ji ,  Wei Zeng ,  Yi Huang

IPC: H04W72/04 ,  H04L5/00 ,  H04W76/28 ,  H04W88/02

Abstract: Methods, systems, and devices for wireless communication are described for a data channel-referenced resource allocation for a control channel. In an implementation, a user equipment (UE) may identify, for a transmission time interval (TTI), a first uplink resource allocation to the UE of a first channel. The UE may determine, based at least in part on the first uplink resource allocation of the first channel, a second uplink resource allocation of a second channel to the UE. The UE may transmit, during the TTI, the first channel and the second channel.

公开(公告)号：US11405940B2

公开(公告)日：2022-08-02

申请号：US17136797

申请日：2020-12-29

Applicant: QUALCOMM Incorporated

Inventor： Sony Akkarakaran ,  Wanshi Chen ,  Tao Luo ,  Yi Huang ,  Xiao Feng Wang ,  Peter Gaal ,  Renqiu Wang

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

Abstract: Certain aspects of the present disclosure provide techniques for uplink control information (UCI) transmission for overlapping physical uplink shared channel (PUSCH) and physical uplink control channel (PUCCH) resource assignments with repetition. A method of wireless communication by a user equipment (UE) is provided. The method generally includes receiving scheduling to transmit on the PUSCH in a first one or more slots associated with a first number of repetitions and scheduling to transmit on the PUCCH in a second one or more slots associated with a second number of repetitions. The scheduled transmissions overlap in at least one slot. The method includes determining which channel to transmit UCI on and which channel to drop for each of the first and second one or more slots. The method includes transmitting or dropping the UCI in the first and second one or more slots in accordance with the determination.

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：US11357033B2

公开(公告)日：2022-06-07

申请号：US16835067

申请日：2020-03-30

Applicant: QUALCOMM Incorporated

Inventor： Yi Huang ,  Hao Xu ,  Wanshi Chen ,  Renqiu Wang ,  Joseph Binamira Soriaga ,  Peter Gaal ,  Seyong Park

IPC: H04W72/12 ,  H04W76/27 ,  H04W72/14 ,  H04W52/36 ,  H04W28/02 ,  H04W74/08

Abstract: Aspects of the present disclosure provide for opportunistic uplink transmissions within a slot. In some examples, after scheduling all regular uplink transmissions within a current slot, a base station (e.g., gNB) may identify a set of unused uplink resources within the current slot and generate and transmit unused resource information identifying the set of unused resources to the user equipment (UE) within the cell served by the base station. If a particular UE is configured to operate in an opportunistic mode, the UE may utilize the unused resource information to generate and transmit an opportunistic uplink transmission within the set of unused uplink resources.

公开(公告)号：US11337195B2

公开(公告)日：2022-05-17

申请号：US17090532

申请日：2020-11-05

Applicant: QUALCOMM Incorporated

Inventor： Yi Huang ,  Amir Aminzadeh Gohari ,  Sony Akkarakaran ,  Renqiu Wang ,  Wei Yang ,  Peter Gaal ,  Wanshi Chen

IPC: H04W72/04 ,  H04L1/18 ,  H04W72/14

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment determine that a physical uplink shared channel (PUSCH) communication, scheduled by an uplink grant, and a physical uplink control channel (PUCCH) communication, corresponding to a physical downlink shared channel (PDSCH) communication scheduled by a downlink grant, are scheduled to overlap in one or more symbols; determine a threshold time based at least in part on an earliest scheduled starting time of the PUSCH communication or the PUCCH communication; selectively multiplex the PUSCH communication and the PUCCH communication based at least in part on whether the uplink grant, the downlink grant, and the PDSCH communication are received before the threshold time; and transmit the PUSCH communication, the PUCCH communication, or both the PUSCH communication and the PUCCH communication based at least in part on the selective multiplexing. Numerous other aspects are provided.

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.