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公开(公告)号:US11863265B2
公开(公告)日:2024-01-02
申请号:US18149610
申请日:2023-01-03
Applicant: QUALCOMM Incorporated
Inventor: Jung Ho Ryu , Kiran Venugopal , Makesh Pravin John Wilson , Tianyang Bai , Tao Luo
IPC: H04B7/0404 , H04B7/0456 , H04B7/06 , H04L5/00 , H04W72/23
CPC classification number: H04B7/0456 , H04B7/0404 , H04B7/0626 , H04B7/0628 , H04B7/0639 , H04L5/0048 , H04W72/23
Abstract: Certain aspects of the present disclosure provide techniques for precoding for multi-panel uplink transmission. For codebook-based uplink transmission, a user equipment (UE) can determine one or more preferred or selected precoders for uplink transmission. The precoders can be from an expanded UE codebook that maps a first number of transmit layers at the UE to a second number of antenna ports at the UE, the layers and/or antenna ports associated with multiple uplink transmit panels at the UE. The UE sends an indication to a base station (BS) of the determined precoders and/or sends an uplink transmission using the determined precoders. For non-codebook based uplink transmission the UE receives first and second reference signals (RSs), from first and second ports of a BS, with first and second UE antenna panels. The UE computes precoders to use for uplink transmission based on the RSs.
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102.
公开(公告)号:US11856432B2
公开(公告)日:2023-12-26
申请号:US16387856
申请日:2019-04-18
Applicant: QUALCOMM Incorporated
Inventor: Tianyang Bai , Makesh Pravin John Wilson , Kiran Venugopal , Tao Luo , Xiaoxia Zhang , Juan Montojo
Abstract: Methods, systems, and devices for wireless communication are described. A user equipment (UE) may receive, during a transmission interval, a data transmission over a plurality of beamformed channels and, for each data transmission, a reference signal transmitted in conjunction with the data transmission. The UE may perform, for one or more of the plurality of beamformed channels, a channel state measurement procedure during the transmission interval using the data transmission, the reference signal, or a combination thereof. The UE may transmit, over an acknowledgement/negative acknowledgement (ACK/NACK) signal, a feedback report indicating a result of the channel state measurement procedure for the one or more of the plurality of beamformed channels. The base station may perform, based at least in part on the feedback report, subsequent transmissions to the UE over the one or more beamformed channels.
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公开(公告)号:US11855722B2
公开(公告)日:2023-12-26
申请号:US17450120
申请日:2021-10-06
Applicant: QUALCOMM Incorporated
Inventor: Yan Zhou , Tianyang Bai , Tao Luo
CPC classification number: H04B7/0608 , H04B7/0632 , H04B7/0695 , H04B7/0802
Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may generate a report indicating a mapping between antenna panels and reference signal beam indications. The UE may transmit the report and apply the mapping to the antenna panels for reference signals. Numerous other aspects are provided.
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104.
公开(公告)号:US11818696B2
公开(公告)日:2023-11-14
申请号:US17224864
申请日:2021-04-07
Applicant: QUALCOMM Incorporated
Inventor: Sungwoo Park , Wooseok Nam , Tianyang Bai , Kiran Venugopal , Tao Luo
IPC: H04W72/0453 , H04W24/10 , H04W72/21
CPC classification number: H04W72/0453 , H04W24/10 , H04W72/21
Abstract: This disclosure provides methods, devices and systems related to UE-aided selective single frequency network (SFN). In some implementations, a UE may obtain a first channel measurement of a first communication channel associated with a serving transmission and reception point (TRP), and a second channel measurement of a second communication channel associated with a neighbor TRP. The UE may further select an SFN condition associated with the first channel measurement or the second channel measurement, and transmit an indication including the SFN condition to one or both of the serving TRP or the neighbor TRP. In some other implementations, a network entity may select whether to configure a transmission scheme according to SFN for at least one of a serving TRP and a neighbor TRP associated with the SFN condition, and communicate with the UE associated with the transmission scheme according to SFN.
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公开(公告)号:US11805499B2
公开(公告)日:2023-10-31
申请号:US17065402
申请日:2020-10-07
Applicant: QUALCOMM Incorporated
Inventor: Tianyang Bai , Tao Luo , Junyi Li
IPC: H04W72/0446 , H04L27/26 , H04W72/21
CPC classification number: H04W72/0446 , H04L27/2607 , H04W72/21
Abstract: Certain aspects of the present disclosure provide techniques for increasing diversity of transmissions with slot aggregation using slot-specific cyclic delay diversity (CDD). A method that may be performed by a transmitting device includes determining to transmit a signal using cyclic delay diversity (CDD) in a plurality of slots; and transmitting the signal using a different cyclic delay in each slot of the plurality of slots.
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公开(公告)号:US11778680B2
公开(公告)日:2023-10-03
申请号:US17002549
申请日:2020-08-25
Applicant: QUALCOMM Incorporated
Inventor: Jung Ho Ryu , Yan Zhou , Tianyang Bai , Tao Luo , Kiran Venugopal , Junyi Li
CPC classification number: H04W76/19 , H04L5/0048 , H04W24/04
Abstract: User equipment (UE) based beam selection for beam failure recovery operations are disclosed. A method of wireless communication includes: identifying a beam failure event associated with a first beam and a secondary cell and transmitting a beam failure recovery request for the secondary cell. The method further includes selecting a second beam for secondary cell communications prior to receiving a response to the beam failure event, and transmitting or receiving a communication to or from the secondary cell using the selected second beam.
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公开(公告)号:US20230309021A1
公开(公告)日:2023-09-28
申请号:US17684120
申请日:2022-03-01
Applicant: QUALCOMM Incorporated
Inventor: Tianyang Bai , Yan Zhou , Tao Luo , Junyi Li
CPC classification number: H04W52/146 , H04L5/0048
Abstract: Techniques and devices for wireless communications are described. A user equipment (UE) may receive a first message indicating a first configuration for a set of resources for transmitting reference signals. The first configuration may include a first indication of a first set of power control parameters corresponding to the set of resources and a second indication of a set of transmission configuration indicator (TCI) states. The UE may receive a second message indicating a second configuration for the set of TCI states. The second configuration may include a third indication of a second set of power control parameters corresponding to the set of TCI states. The UE may transmit the reference signals in accordance with the first set of power control parameters or the second set of power control parameters.
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公开(公告)号:US11737029B2
公开(公告)日:2023-08-22
申请号:US16986130
申请日:2020-08-05
Applicant: QUALCOMM Incorporated
Inventor: Jung Ho Ryu , Kapil Gulati , Tianyang Bai , Junyi Li , Sony Akkarakaran , Tao Luo , Vasanthan Raghavan
CPC classification number: H04W52/10 , H04B17/318 , H04L5/0051 , H04L25/0226 , H04W24/10 , H04W52/241 , H04W52/242 , H04W56/001 , H04W92/18
Abstract: In an aspect, the present disclosure includes a method, apparatus, and computer readable medium for wireless communications for receiving, by a user equipment (UE) from a base station, a plurality of synchronization reference signals; measuring, by the UE, a respective Reference Signal Received Power (RSRP) value of each of the plurality synchronization reference signals; determining, by the UE, a highest RSRP value from each of the respective RSRP values; and calculating, by the UE, a downlink pathloss associated with a sidelink open loop power control based on the highest RSRP value.
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公开(公告)号:US11728850B2
公开(公告)日:2023-08-15
申请号:US17498563
申请日:2021-10-11
Applicant: QUALCOMM Incorporated
Inventor: Yan Zhou , Tianyang Bai , Tao Luo
IPC: H04B7/0417
CPC classification number: H04B7/0417
Abstract: Aspects described herein relate to communicating a beam report that includes beam measurements performed by one or more antenna panels and an identifier of the one or more antenna panels. The beam report may be used to determine a number of antenna panels supported by a user equipment (UE) transmitting the beam report, which may be used in configuring the UE for communicating with one or more other devices.
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公开(公告)号:US20230223993A1
公开(公告)日:2023-07-13
申请号:US18064097
申请日:2022-12-09
Applicant: QUALCOMM Incorporated
Inventor: Tianyang Bai , Yan Zhou , Junyi Li , Tao Luo
IPC: H04B7/0408 , H04B7/08 , H04B7/06
CPC classification number: H04B7/0408 , H04B7/088 , H04B7/0695
Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may communicate with a wireless network using multiple beams. For example, the UE may communicate with different transmission/reception points (TRPs) using different beams, communicate using different downlink and uplink beams, communicate using different beams in different component carriers (CCs), or any combination thereof. If the UE detects a single beam failure, the UE may indicate multiple new beams in a beam failure recovery request (BFRQ). The UE may select a new beam based on the detected beam failure and may determine one or more additional new beams (e.g., for a different TRP, link direction, or CC than the failed beam) that are compatible with the selected new beam to further indicate in the BFRQ. The UE may receive a beam failure recovery response (BFRR) in response to the BFRQ and may communicate using the new beams.
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