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公开(公告)号：US20220070834A1
公开(公告)日：2022-03-03
申请号：US17367214
申请日：2021-07-02
Applicant: QUALCOMM Incorporated
Inventor： Vasanthan Raghavan , Mohammad Ali Tassoudji , Yu-Chin Ou , Kobi Ravid , Ozge Koymen , Junyi Li
Abstract: Methods, systems, and devices for wireless communications are described that support beam correlation across frequency bands for beam selection in the event of a frequency switch. For example, a base station may determine a configuration indicating a mapping between a set of beam identifiers (IDs) and a set of angle coverage ranges for a set of frequency ranges which corresponds to a user equipment's (UE) operating frequencies. In some examples, the UE may undergo a frequency switch and switch from a first operating frequency to a second operating frequency. The UE may select a beam ID based on the mapping and communicate with the base station via the second operating frequency using a beam associated with the selected beam ID.
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公开(公告)号：US20220070793A1
公开(公告)日：2022-03-03
申请号：US17394158
申请日：2021-08-04
Applicant: QUALCOMM Incorporated
Inventor： Vasanthan Raghavan , Junyi Li , Tao Luo
Abstract: Methods, systems, and devices for wireless communications are described. A first device, which may be a user equipment (UE), may perform a measurement on a wideband channel in a millimeter wave (mmW) frequency band. The wideband channel may include a set of subbands that span the wideband channel. Based on the measurement, the first device may determine a set of power control parameters for the wideband channel. The first device may determine to transmit a signal using a subband of the set of subbands and may modify one or more power control parameters of the set of power control parameters based on a power offset for the subband. The first device may transmit an indication of the modified one or more power control parameters to a second device. The first device may transmit the signal to the second device based on the modified one or more power control parameters.
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公开(公告)号：US20220038249A1
公开(公告)日：2022-02-03
申请号：US17382215
申请日：2021-07-21
Applicant: QUALCOMM Incorporated
Inventor： Vasanthan Raghavan , Arumugam Chendamarai Kannan , Srinivas Yerramalli , Tao Luo , Xiaoxia Zhang , Junyi Li
Abstract: Methods, systems, and devices for wireless communications are described that provide for a wireless device to declare a default operating frequency. A first wireless device may identify one or more default operating frequencies for communicating over a bandwidth, where the default operating frequencies are predetermined by an antenna array configuration of the first wireless device. The first wireless device may transmit an indication of the one or more default operating frequencies to a second wireless device. The first wireless device or the second wireless device may select communications parameters for communicating over the bandwidth based on the one or more default operating frequencies. The first and second wireless devices may communicate over the bandwidth based on the one or more default operating frequencies.
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公开(公告)号：US20210399780A1
公开(公告)日：2021-12-23
申请号：US17467107
申请日：2021-09-03
Applicant: QUALCOMM INCORPORATED
Inventor： Muhammad Nazmul Islam , Bilal Sadiq , Ashwin Sampath , Sundar Subramanian , Junyi Li , Vasanthan Raghavan
Abstract: Methods, systems, and devices for wireless communication are described. A network device, such as a base station, may transmit a request message to a user equipment (UE). The request message may include a request for the UE to transmit a set of sounding reference signals (SRSs). The set of SRSs may include two (or more) beamformed signals. The network device may receive the set of SRSs according to the request message. The network device may identify, based on a co-phasing parameter associated with the two (or more) beamformed signals, an antenna port precoder configuration to use for communicating with the UE.
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公开(公告)号：US11206075B2
公开(公告)日：2021-12-21
申请号：US16680338
申请日：2019-11-11
Applicant: QUALCOMM Incorporated
Inventor： Vasanthan Raghavan , Juergen Cezanne , Kobi Ravid , Jung Ho Ryu , Junyi Li
Abstract: Methods, systems, and devices for wireless communications are described. A communication device may perform a first set of beam measurements for a first plurality of beams over a wireless channel, each beam in the first plurality of beams having a first beam-width. The communication device may transmit a first beam measurement report for the first plurality of beams, the first beam measurement report indicating a beam sweep order for a second set of beam measurements for a second plurality of beams. The communication device may perform the second set of beam measurements for the second plurality of beams over the wireless channel according to the indicated beam sweep order, each beam in the second plurality of beams having a second beam-width that is narrower than the first beam-width.
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Patent Agency Ranking
公开(公告)号：US11206071B2
公开(公告)日：2021-12-21
申请号：US16996831
申请日：2020-08-18
Applicant: QUALCOMM Incorporated
Inventor： Vasanthan Raghavan , Juergen Cezanne , Junyi Li , Dai Lu , Joseph Patrick Burke , Wenjun Li
IPC: H04B7/02 , H04B7/06 , H04B7/0456 , H04B7/08
Abstract: A UE may be configured to communicate using one of analog beamforming or hybrid beamforming. The UE may receive a set of beamformed signals from a base station. The UE may determine a set of angular spread values associated with a set of clusters in a channel between the base station and the UE based on the set of beamformed signals received from the base station. The UE may transmit the set of angular spread values to the base station. The UE may receive, from the base station based on the set of angular spread values, a set of transmission ranks associated with at least one cluster of the set of clusters. The UE may communicate at least one data stream with the base station across the at least one cluster using the set of transmission ranks associated with the at least one cluster of the set of clusters.
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公开(公告)号：US20210329621A1
公开(公告)日：2021-10-21
申请号：US17221756
申请日：2021-04-02
Applicant: QUALCOMM Incorporated
Inventor： Vasanthan Raghavan , Tao Luo , Junyi Li
Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may transmit a first uplink signal to a base station using a first antenna subarray configuration that is associated with a first quasi co-location (QCL) relationship. The UE may determine to switch from using the first antenna subarray configuration to using a second antenna subarray configuration associated with a second QCL relationship based on power, thermal, architectural, or channel conditions, or a combination thereof. The UE may transmit, to the base station, an indication of the second QCL relationship in response to determining to switch subarray configurations. The UE may transmit a second uplink signal using the second antenna subarray to the base station. In some cases, the first QCL relationship and the second QCL relationship may be a QCL-Type A, QCL-Type B, QCL-Type C, or QCL-Type D.
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公开(公告)号：US11134473B2
公开(公告)日：2021-09-28
申请号：US16554049
申请日：2019-08-28
Applicant: QUALCOMM Incorporated
Inventor： Vasanthan Raghavan , Joseph Patrick Burke , Juergen Cezanne , Ozge Koymen , Junyi Li
Abstract: This disclosure generally relates to systems, devices, apparatuses, products, and methods for wireless communication. For example, a user equipment (UE) device within a wireless communication system determines one or more performance metrics associated with an operation of the UE. The UE selects, based at least in part on the one or more performance metrics, one or more sets of antenna elements from a plurality of sets of antenna elements available for an inter-band carrier aggregation communication across at least two radio frequency (RF) chains between the UE and one or more base stations. The UE sends an indication of the one or more selected sets of antenna elements from the UE to the one or more base stations.
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公开(公告)号：US20210250940A1
公开(公告)日：2021-08-12
申请号：US17170315
申请日：2021-02-08
Applicant: QUALCOMM Incorporated
Inventor： Vasanthan Raghavan , Junyi Li
Abstract: Methods, systems, and devices for wireless communications are described in which a first device may determine a state change based on a condition associated with communications between the first device and a second device and perform an adjustment for one or more sets of antenna elements of the first device based on the state change. A state change may, for example, include a change of an antenna configuration or a quasi co-location (QCL) configuration of the respective device. Based on determining the state change, the first device may transmit a state change request to the second device. According to the state change request, the second device may perform an adjustment for a set of one or more of its antenna elements. The second device may transmit an indication of an adjustment to the first device, and the first device and the second device may communicate according to the adjustment.
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公开(公告)号：US20210234593A1
公开(公告)日：2021-07-29
申请号：US17157907
申请日：2021-01-25
Applicant: QUALCOMM Incorporated
Inventor： Vasanthan Raghavan , Tao Luo , Junyi Li , Robert Keith Douglas , Alexander Dorosenco
Abstract: Methods, systems, and devices for wireless communications are described. A first wireless device may receive, from a second wireless device, a carrier aggregation configuration including two millimeter wave frequency bands for communications. The first wireless device may determine a beam correlation parameter based on the carrier aggregation configuration. The first wireless device may determine beams, based on the beam correlation parameter, in the two frequency bands. The first wireless device and the second wireless device may communicate in carrier aggregation using a beam on a first frequency band and a second beam on a second frequency band.
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