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公开(公告)号:US11962374B2
公开(公告)日:2024-04-16
申请号:US18047835
申请日:2022-10-19
Applicant: QUALCOMM Incorporated
Inventor: Vasanthan Raghavan , Tao Luo , Mohammad Ali Tassoudji , Junyi Li
IPC: H04B7/0456 , H04B7/06
CPC classification number: H04B7/0456 , H04B7/0617
Abstract: Methods, systems, and devices for wireless communications are described. A base station may transmit a synchronization signal block (SSB) burst set including a first set of SSBs transmitted using a first codebook and a second set of SSBs transmitted using a second codebook. In some cases, the first codebook may be configured for beamforming at a first transmission distance range (e.g., for far field transmissions) and the second codebook may be configured for beamforming at a second transmission distance range (e.g., for near field transmissions). Based on transmitting the SSB burst, the base station may receive an indication of a first SSB from the first set or the second set from a user equipment (UE). The base station may then communicate messages to the UE using a transmission beam and codebook associated with the first SSB indicated by the UE.
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公开(公告)号:US20240121165A1
公开(公告)日:2024-04-11
申请号:US18045614
申请日:2022-10-11
Applicant: QUALCOMM Incorporated
Inventor: Vasanthan Raghavan , Tianyang Bai
Abstract: Methods, systems, and devices for wireless communication are described. A machine learning server may generate a low-dimensional parameter set representing training data for the machine learning server, the training data being associated with one or more communication environments or one or more channel environments, or a combination thereof. The machine learning server may receive, from one or more devices within a communication environment or within a channel environment, or both, a low-dimensional parameter set representing testing data associated with the communication environment or the channel environment, or both. The machine learning server may generate a reproducibility metric according to a correlation between the parameter set representing the training data and the parameter set representing the testing data. The machine learning server may transmit a message indicating the reproducibility metric to the one or more devices, and the one or more devices may perform communication procedures based on the reproducibility metric.
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283.
公开(公告)号:US11956183B2
公开(公告)日:2024-04-09
申请号:US18158749
申请日:2023-01-24
Applicant: QUALCOMM Incorporated
Inventor: Vasanthan Raghavan , Tao Luo , Junyi Li
IPC: H04L5/14 , H04W72/0453
CPC classification number: H04L5/14 , H04W72/0453
Abstract: This disclosure provides systems, methods and apparatus, including computer programs encoded on computer storage media, for indication of asymmetric default operating frequencies (DOFs) for bidirectional communications. In one aspect, a first device may report to the second device that the first device is using either a same DOF for communications in different transmission directions or different DOFs for the different transmission directions. Based on the reported DOF(s), the second device may use beam correspondence-based beam relationships on the different transmission directions if the DOFs are the same and resource block allocations for the communications in both transmission directions are closely matched in frequencies. Alternatively, if the DOFs are different for the different transmission directions, the second device may adjust either a codebook parameter or may use an appropriate antenna panel. Additionally, or alternatively, the second device may direct the first device to use respective antenna subarrays with similar DOFs.
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公开(公告)号:US11895572B2
公开(公告)日:2024-02-06
申请号:US17454458
申请日:2021-11-10
Applicant: QUALCOMM Incorporated
Inventor: Vasanthan Raghavan , Tao Luo , Junyi Li
CPC classification number: H04W48/04 , H04B17/102 , H04W8/22 , H04W48/16 , H04L1/0003
Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may transmit, to a wireless device, information indicating an amplitude control capability of the UE. The UE may receive, from the wireless device, a communication using amplitude control. Numerous other aspects are described.
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公开(公告)号:US11871394B2
公开(公告)日:2024-01-09
申请号:US17497316
申请日:2021-10-08
Applicant: QUALCOMM Incorporated
Inventor: Vasanthan Raghavan , Tao Luo , Junyi Li
IPC: H04W72/04 , H04W72/044 , H04B7/022
CPC classification number: H04W72/046 , H04B7/022
Abstract: This disclosure provides systems, methods and apparatuses, including computer programs encoded on computer storage media, for a selection of a set of beams that a first cell or a second cell, or both, may use to communicate with a user equipment (UE) within a carrier-aggregation (CA) or dual-connectivity (DC) deployment. In one aspect, the UE may transmit an indication of the selected set of beams based on a mismatch between a default operating frequency (DOF) of antenna ports of each cell and antenna modules of the UE. For example, the UE may receive an indication of a DOF of each antenna port of the first cell and the second cell and the UE may compare the indicated DOFs with a DOF of each antenna module of the UE. The UE may select one or more ports that each cell may use to communicate with the UE based on the comparison.
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公开(公告)号:US11864129B2
公开(公告)日:2024-01-02
申请号:US17544287
申请日:2021-12-07
Applicant: QUALCOMM Incorporated
Inventor: Vasanthan Raghavan , Tao Luo , Junyi Li
CPC classification number: H04W52/245 , H04W52/143 , H04W52/367 , H04W52/54
Abstract: Methods, systems, and devices for wireless communications are described. Generally, a user equipment (UE) may transmit an indication to a base station that a total received power for the UE exceeds an overload threshold. In some cases, the indication may be an explicit request for a decrease in transmit power by a specific amount of reduction. The UE may transmit indications that the overload threshold is exceeded to multiple transmit/receive points. The indications may request specific transmit power reduction amounts that are specific to the TRPs, or may be generic indications that the overload threshold is exceeded, and the TRPs may coordinate to reduce their respective transmit powers to satisfy the overload threshold at the UE. The base station may allocate a first set of resources for near field UEs and a second set of resources for far field UEs.
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公开(公告)号:US11856570B2
公开(公告)日:2023-12-26
申请号:US17157915
申请日:2021-01-25
Applicant: QUALCOMM Incorporated
Inventor: Vasanthan Raghavan , Tao Luo , Junyi Li , Robert Keith Douglas , Alexander Dorosenco
IPC: H04W72/044 , H04W72/0446 , H04W72/51
CPC classification number: H04W72/046 , H04W72/0446 , H04W72/51
Abstract: Methods, systems, and devices for wireless communications are described. A first device may indicate a dynamic beam correspondence operation for communications with a second device. For example, the dynamic beam correspondence operation may be declared in a time-dependent manner, for certain transmission configuration indication (TCI) states or time-dependent TCI states. Further, the first device may declare no beam correspondence and associated power savings and thermal reductions that result from the lack of beam correspondence. Subsequently, based on the dynamic beam correspondence operation, the second device may identify parameters (e.g., which TCI states, subarrays) for the first device to use for different modes or procedures (e.g., at a corresponding time) based on parameters that correspond to a full beam correspondence or no beam correspondence. For example, the parameters may be used for initial access, beam failure recovery, low power modes, or high temperature modes.
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公开(公告)号:US11849397B2
公开(公告)日:2023-12-19
申请号:US17398924
申请日:2021-08-10
Applicant: QUALCOMM Incorporated
Inventor: Vasanthan Raghavan , Kang Yang , Raghu Narayan Challa , Shrenik Patel
CPC classification number: H04W52/0235 , H04W72/20
Abstract: Methods, systems, and devices for wireless communications are described. A communications device may transmit, to a second communications, a request to update a phase shifter configuration. The first communications device may receive, from the second communications device and in response to the request, a response accepting the request to update the phase shifter configuration. The first communications device may then transmit, to the second communications device, an uplink transmission in accordance with the updated phase shifter configuration based on receiving the response. The first communications device may include a first user equipment (UE) and the second communications device may include a second UE or a base station.
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公开(公告)号:US11838767B2
公开(公告)日:2023-12-05
申请号:US17225920
申请日:2021-04-08
Applicant: QUALCOMM Incorporated
Inventor: Vasanthan Raghavan , Tao Luo , Sony Akkarakaran , Yan Zhou , Junyi Li
CPC classification number: H04W16/28 , H04B7/0617 , H04B7/0695 , H04B7/088 , H04L5/0048 , H04W24/10
Abstract: Inter-band CA beam training may include performing inter-band CA beam training for a first frequency band and inter-band CA beam training for a second frequency band between one or more base stations and a user equipment simultaneously.
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公开(公告)号:US20230387984A1
公开(公告)日:2023-11-30
申请号:US18304697
申请日:2023-04-21
Applicant: QUALCOMM Incorporated
Inventor: Vasanthan Raghavan , Junyi Li
IPC: H04B7/06 , H04B17/318 , H04B7/08
CPC classification number: H04B7/0617 , H04B17/318 , H04B7/0632 , H04B7/088
Abstract: Aspects are provided which allow a transmitting device to provide reference signals to a receiving device for beam management according to an arbitrarily determined sequence of transmission beams at any time, and to implicitly convey information regarding the determined sequence of transmission beams to the receiving device. The transmitting device provides a message to the receiving device indicating a beam sequence conveyance mode. The transmitting device subsequently determines a sequence of different transmission beams, and associates a reference signal with each one of the transmission beams for transmission to the receiving device according to the sequence. The receiving device obtains the plurality of reference signals from the transmitting device, where each of the reference signals is associated with a different transmission beam. The receiving device identifies a reception beam for each of the transmission beams, and determines a sequence of the transmission beams in response to the identification.
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