公开(公告)号：US12063689B2

公开(公告)日：2024-08-13

申请号：US17335982

申请日：2021-06-01

申请人： QUALCOMM Incorporated

发明人： Xiaoxia Zhang ,  Srinivas Yerramalli ,  Lorenzo Ferrari ,  Yih-Hao Lin ,  Jing Sun ,  Rajat Prakash ,  Alexandros Manolakos

IPC分类号： H04W74/0833 ,  H04B17/10 ,  H04L5/00 ,  H04W52/02 ,  H04W72/21

CPC分类号： H04W74/0833 ,  H04B17/103 ,  H04L5/0048 ,  H04W52/0238 ,  H04W72/21

摘要： A user equipment (UE) transmits reference signals for positioning while in Idle or Inactive state. While in a connected state, the UE is pre-configured with Sounding Reference Signal (SRS) resource configuration including at least one of timing adjustment (TA) and an uplink (UL) transmission spatial filter. The UE transmits positioning SRS while in Idle or Inactive mode based on the pre-configuration. The TA and UL transmission spatial filter may be updated by a serving base station using control signals or a paging message received by the UE while in in Idle or Inactive mode. The validity of the TA and UL transmission spatial filter may be monitored using expiration timers or a relative position change threshold. The reference signals transmitted may be based on a UE may Physical Random Access Channel (PRACH), which is insensitive to TA changes. A long sequence PRACH may be used for improved positioning accuracy.

公开(公告)号：US12047972B2

公开(公告)日：2024-07-23

申请号：US18190411

申请日：2023-03-27

申请人： QUALCOMM Incorporated

发明人： Vinay Chande ,  Arumugam Chendamarai Kannan ,  Xiaoxia Zhang ,  Jing Sun ,  Mostafa Khoshnevisan ,  Srinivas Yerramalli ,  Tao Luo

IPC分类号： H04W72/12 ,  H04L5/00 ,  H04W72/0446 ,  H04W72/1273 ,  H04W72/23

CPC分类号： H04W72/23 ,  H04L5/0005 ,  H04W72/0446 ,  H04W72/1273

摘要： Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive single downlink control information (DCI) that indicates resources for a plurality of transmission configuration indicator (TCI) states for transmitting or receiving communications in a plurality of transmission time intervals (TTIs). The UE may transmit or receive the communications in the plurality of TTIs in accordance with the DCI. Numerous other aspects are provided.

公开(公告)号：US12035256B2

公开(公告)日：2024-07-09

申请号：US17544581

申请日：2021-12-07

申请人： QUALCOMM Incorporated

发明人： Eren Balevi ,  Taesang Yoo ,  Tao Luo ,  Srinivas Yerramalli ,  Junyi Li ,  Hamed Pezeshki

IPC分类号： H04W52/50 ,  H04W4/06 ,  H04W52/22 ,  H04W52/24 ,  H04W52/36

CPC分类号： H04W52/50 ,  H04W4/06 ,  H04W52/225 ,  H04W52/242 ,  H04W52/36

摘要： A parameter server located at a base station may coordinate federated learning among multiple user equipment (UEs) using over-the-air (OTA) aggregation with power control to mitigate aggregation distortion due to amplitude misalignment. The parameter server may select a first group of UEs for a first OTA aggregation session of a federated learning round based on a common received power property of each UE in the first group of UEs. The parameter server may transmit a global model to the first group of UEs. Each UE in the first group may train the global model based on a local dataset and transmit values associated with the trained local model. The parameter server may receive, on resource elements for the first group of UEs, a first aggregate amplitude modulated analog signal representing a combined response from the first group of UEs.

公开(公告)号：US20240205927A1

公开(公告)日：2024-06-20

申请号：US18538829

申请日：2023-12-13

申请人： QUALCOMM Incorporated

发明人： Srinivas Yerramalli ,  Arumugam Chendamarai Kannan ,  Vinay Chande ,  Xiaoxia Zhang ,  Tao Luo

IPC分类号： H04W72/23 ,  H04L5/00 ,  H04W72/044 ,  H04W72/542

CPC分类号： H04W72/23 ,  H04L5/0048 ,  H04W72/046 ,  H04W72/542 ,  H04W72/044

摘要： This disclosure provides systems, methods, and apparatus, including computer programs encoded on computer storage media, for frame based operation and medium contention procedures in wireless networks. In some aspects, devices of a wireless network may perform receiver side contention operations. To illustrate, reference signals from a receiving device may be transmitted to a transmitting device and used by the transmitting device to estimate interference for transmitter side transmissions. Such receiver side reference signals may more accurately reflect the interference profile that transmissions sent by the transmitting device will face, such as when operating in a spectrum shared with many devices. The transmitting device may utilize the beam(s) that satisfy interference criteria when receiving the reference signals to transmit data. Receiver side frame based operation may provide a more stable interference profile which enables better rate prediction, and the better rate prediction may increase reliability and overall network and medium throughput.

公开(公告)号：US20240172166A1

公开(公告)日：2024-05-23

申请号：US18058148

申请日：2022-11-22

申请人： QUALCOMM Incorporated

发明人： Mohammad Tarek Fahim ,  Srinivas Yerramalli ,  Piyush Gupta ,  Xiaojie Wang ,  Xiaoxia Zhang ,  Rajat Prakash

IPC分类号： H04W64/00 ,  G01N23/203 ,  G06K19/077

CPC分类号： H04W64/00 ,  G01N23/203 ,  G06K19/07758

摘要： This disclosure provides systems, methods, and devices for wireless communication that support backscatter-based positioning. In a first aspect, a method of wireless communication includes receiving a tag device indicator that indicates a tag capability of a tag device. The method also includes transmitting, to a first transmission/reception point (TRP) of a plurality of TRPs, a positioning reference signal (PRS) configuration associated with a PRS, the PRS configuration based on the tag capability, the plurality of TRPs including the first TRP designated as a transmit (Tx) TRP and a second TRP designated as a receive (Rx) TRP. The method further includes receiving a measurement report from the second TRP based on a backscatter signal of the positioning reference signal transmitted by the first TRP. Other aspects and features are also claimed and described.

公开(公告)号：US11950210B2

公开(公告)日：2024-04-02

申请号：US17467659

申请日：2021-09-07

申请人： QUALCOMM Incorporated

发明人： Alexandros Manolakos ,  Mukesh Kumar ,  Srinivas Yerramalli

IPC分类号： H04W72/02 ,  H04L5/00 ,  H04W52/02 ,  H04W72/04 ,  H04W72/08 ,  H04W72/51 ,  H04W72/542

CPC分类号： H04W72/02 ,  H04L5/0007 ,  H04W52/0229 ,  H04W72/51 ,  H04W72/542

摘要： A method of measuring a wireless OFDM PRS at a user equipment includes: selecting a symbol subset of a symbol group of the OFDM PRS, the OFDM PRS comprising a slot of symbols comprising the symbol group, the symbol group consisting of a first symbol quantity of consecutive ones of the symbols, the symbol group being fully staggered in frequency domain, the symbol subset consisting of a second symbol quantity of the symbols of the symbol group, the second symbol quantity being smaller than the first symbol quantity, and the symbol subset being less than fully staggered in the frequency domain; and measuring the symbol subset without measuring all of the symbols of the symbol group.

公开(公告)号：US11916812B2

公开(公告)日：2024-02-27

申请号：US16875441

申请日：2020-05-15

申请人： QUALCOMM Incorporated

发明人： Xiaoxia Zhang ,  Tao Luo ,  Juan Montojo ,  Jing Sun ,  Srinivas Yerramalli ,  Vinay Chande ,  Zhifei Fan ,  Olufunmilola Omolade Awoniyi-Oteri ,  Sungwoo Park ,  Arumugam Chendamarai Kannan

IPC分类号： H04L5/00 ,  H04W72/20 ,  H04W72/54

CPC分类号： H04L5/0007 ,  H04W72/20 ,  H04W72/54

摘要： Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive a control channel that uses an orthogonal frequency division multiplexing (OFDM) waveform. The UE may transmit or receiving a data channel, associated with the control channel, that uses a single-carrier (SC) waveform. Numerous other aspects are provided.

公开(公告)号：US11910392B2

公开(公告)日：2024-02-20

申请号：US17374580

申请日：2021-07-13

申请人： QUALCOMM Incorporated

发明人： Alexandros Manolakos ,  Mukesh Kumar ,  Guttorm Ringstad Opshaug ,  Srinivas Yerramalli

IPC分类号： H04W72/21 ,  H04W24/08 ,  H04L5/00 ,  H04W72/0453

CPC分类号： H04W72/21 ,  H04L5/0051 ,  H04W24/08 ,  H04W72/0453

摘要： Disclosed are various techniques for wireless communication. In an aspect, a user equipment (UE) transmits, to a serving base station, in one or more active bandwidth parts (BWPs) of the UE, a request for a no-downlink-scheduling gap, the request including at least time-domain parameters related to scheduling the no-downlink-scheduling gap, receives, from a neighboring base station, in the one or more active BWPs, a downlink positioning reference signal (DL-PRS) during the no-downlink-scheduling gap, and transmits, in the one or more active BWPs, an uplink positioning reference signal (UL-PRS) during the no-downlink-scheduling gap in response to reception of the DL-PRS.

公开(公告)号：US20240014965A1

公开(公告)日：2024-01-11

申请号：US18042582

申请日：2021-10-13

申请人： QUALCOMM INCORPORATED

发明人： Mostafa Khoshnevisan ,  Sony Akkarakaran ,  Srinivas Yerramalli ,  Alexandros Manolakos ,  Mukesh Kumar

IPC分类号： H04L5/00 ,  H04B7/024

CPC分类号： H04L5/0048 ,  H04L5/0094 ,  H04B7/024

摘要： Methods, systems, and devices for wireless communications are described. Generally, the described techniques allow a user equipment (UE) to efficiently identify a trigger state that is linked to a configuration for receiving and measuring reference signals from a transmission and reception point (TRPs). The UE may receive an indication of different lists of trigger states associated with different TRPs, and, when the UE receives downlink control information (DCI) indicating a trigger state index, the UE may reference an appropriate list to identify the trigger state corresponding to the trigger state index. In particular, the UE may determine a control resource set (CORESET) pool index of a CORESET in which the DCI is received, and the UE may identify the trigger state corresponding to the trigger state index from a list of trigger states associated with the CORESET pool index.

公开(公告)号：US11863997B2

公开(公告)日：2024-01-02

申请号：US17172000

申请日：2021-02-09

申请人： QUALCOMM Incorporated

发明人： Srinivas Yerramalli ,  Vinay Chande ,  Arumugam Chendamarai Kannan ,  Jing Sun ,  Xiaoxia Zhang ,  Tao Luo

IPC分类号： H04W16/14 ,  H04L27/00 ,  H04W72/044

CPC分类号： H04W16/14 ,  H04L27/0006 ,  H04W72/046

摘要： A wireless device uses a frame-based channel access mode to access a wireless spectrum for wireless communication. The wireless device may use transmitter-side only channel sensing to determine whether or not the spectrum is idle. The frame-based channel access mode may use a fixed frame period that includes an initial sensing period for beam-based sensing and an idle period at the end of the frame to facilitate spectrum sharing.