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公开(公告)号：WO2023043555A1
公开(公告)日：2023-03-23
申请号：PCT/US2022/040339
申请日：2022-08-15
Applicant: QUALCOMM INCORPORATED
Inventor： NATTHA, Raj Kumar , ZHU, Jun , VATTIKONDA, Jyothi Kiran
IPC: H04B7/08 , H04B7/0404 , H04B7/06
Abstract: Method and apparatus for an enhanced beam refinement procedure in a multi-cell scenario. The apparatus receives a beam refinement configuration indicating beam measurement is restricted to a serving cell and excluded for a neighbor cell. The apparatus measures an SSB of the serving cell by sweeping multiple beams restricted based on the beam refinement configuration. Measurement of a concurrent SSB of the neighbor cell is excluded in the sweeping of the multiple beams. The apparatus identifies a refined beam for the serving cell based on the sweeping of the multiple beams.
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公开(公告)号：WO2022232752A1
公开(公告)日：2022-11-03
申请号：PCT/US2022/071802
申请日：2022-04-19
Applicant: QUALCOMM INCORPORATED
Inventor： ZHU, Jun , LI, Yong , CHALLA, Raghu Narayan
Abstract: A method of wireless communication includes receiving, by a UE, one or more configuration messages indicating synchronization signals (SS) and physical broadcast channel (PBCH) block measurement timing configuration (SMTC) parameters. The SMTC parameters indicate SMTC windows associated with reception of synchronization signal blocks (SSBs) by the UE from a base station. The method further includes, based on detecting one or more trigger conditions, transitioning, by the UE, from an inactive state to an active state to receive, during a time interval distinct from the SMTC windows, one or more SSBs from the base station. The method further includes performing, by the UE, one or more beam management operations based on the one or more SSBs received during the time interval.
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公开(公告)号：WO2022191942A1
公开(公告)日：2022-09-15
申请号：PCT/US2022/015672
申请日：2022-02-08
Applicant: QUALCOMM INCORPORATED
Inventor： ZHU, Jun , LAGHATE, Mihir Vijay , CHALLA, Raghu Narayan
Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may communicate with a base station using a first beam set of a group of beam sets, where each beam set includes a beam from a first set of beams with a first polarization and a beam from a second set of beams with a second polarization. The UE may receive a set of reference signals corresponding to a set of transmit beams of the base station, where the UE receives at least one reference signal for each beam of the first and second sets of beams. The UE may select a second beam set from the group of beam sets based on one or more parameters associated with the second beam set and based on receiving the set of reference signals, and may communicate with the base station using the selected beam set.
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24.发明申请
公开(公告)号：WO2022164583A1
公开(公告)日：2022-08-04
申请号：PCT/US2021/072615
申请日：2021-11-29
Applicant: QUALCOMM INCORPORATED
Inventor： RAGHAVAN, Vasanthan , CHALLA, Raghu Narayan , LAGHATE, Mihir Vijay , GAO, Yuan , ZHU, Jun
Abstract: Methods, systems, and devices for wireless communications are described. In some examples, a base station and a user equipment (UE) may utilize multi-port reference signals to determine a beam pair for rank‑2 transmissions. For example, a UE may receive a set of multi-port reference signals, where each multi-port reference signal of the set corresponds to a unique beam pair and is received via two ports associated with two different polarizations. The UE may determine a spectral efficiency estimation for each multi-port reference signal of the set, select a beam pair associated with a multi-port reference signal with the highest determined spectral efficiency estimation of the set, and transmit an indication of the selected beam pair to the base station. Therefore, the UE and the base station may communicate using a beam pair which maximizes the spectral efficiency and rate of rank‑2 transmissions.
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公开(公告)号：WO2020263946A1
公开(公告)日：2020-12-30
申请号：PCT/US2020/039319
申请日：2020-06-24
Applicant: QUALCOMM INCORPORATED
Inventor： ZHU, Jun , LI, Yong , CHALLA, Raghu Narayan
Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive synchronization signal block (SSB) measurement time configuration (SMTC) information that identifies a periodicity of a plurality of SSB measurement occasions. The UE may perform at least one of a radio resource management (RRM) operation or a beam management (BM) operation on a group of SSBs based at least in part on whether the plurality of SSB measurement occasions overlap all SSBs of the group of SSBs. Numerous other aspects are provided.
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Patent Agency Ranking
公开(公告)号：WO2020242697A1
公开(公告)日：2020-12-03
申请号：PCT/US2020/030278
申请日：2020-04-28
Applicant: QUALCOMM INCORPORATED
Inventor： LAGHATE, Mihir Vijay , CHALLA, Raghu Narayan , ZHU, Jun , CAI, Mingming , LI, Yong , HE, Ruhua
Abstract: A UE may be configured to select narrower or wider beams that may be suitable for use with a current UE mobility, scattering environment, etc. The UE may track changes to an identified beam of a certain width, and so may recover from tracking or other radio link failures by switching to a beam that is spatially adjacent or to a beam of a different width. The UE may identify a first beam associated with a first beam width based on at least one reference signal received by the UE. The UE may further determine a set of beams based on the first beam width that is associated with the identified first beam, and the determined set of beams may include at least one beam corresponding to the first beam width. The UE may further measure respective channel qualities associated with each beam of the determined set of beams.
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公开(公告)号：WO2020117900A1
公开(公告)日：2020-06-11
申请号：PCT/US2019/064399
申请日：2019-12-04
Applicant: QUALCOMM INCORPORATED
Inventor： ZHU, Jun , LI, Yong , CHALLA, Raghu Narayan , GARAVAGLIA, Andrea , WU, Yongle , KONG, Ting , GOROKHOV, Alexei Yurievitch
IPC: H04W56/00 , H04B7/06 , H04W72/04 , H04B7/0408 , H04B7/08
Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may use a measurement procedure for beam detection within an existing cell. The UE perform a search procedure for a first synchronization signal block (SSB) to detect a first beam of a base station. The UE may determine a first timing offset for the first SSB based on the search procedure. The UE may estimate a second timing offset for a second SSB from the base station based on the first timing offset. The UE may perform a measurement procedure for the second SSB to detect a second beam of the base station based on the second timing offset. The UE may prune fake beams based on synchronization signals used for the measurement procedure.
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公开(公告)号：WO2023034713A1
公开(公告)日：2023-03-09
申请号：PCT/US2022/075437
申请日：2022-08-25
Applicant: QUALCOMM INCORPORATED
Inventor： ZHU, Jun , LAGHATE, Mihir Vijay , WU, Yongle , CHALLA, Raghu Narayan
IPC: H04B7/08
Abstract: Techniques for managing base station beam panic for new radio technologies may include a user equipment (UE) measuring a signal quality of a serving beam from a base station. The UE may determine the signal quality has decreased by at least a threshold amount, and enable a signal panic operation to search for a beam different from the serving beam, in response to the signal quality decreasing by at least the threshold amount.
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公开(公告)号：WO2022231757A1
公开(公告)日：2022-11-03
申请号：PCT/US2022/022794
申请日：2022-03-31
Applicant: QUALCOMM INCORPORATED
Inventor： ZHU, Jun , GAO, Kang , LI, Yong , LEE, Heechoon , SANTHANAM, Arvind Vardarajan , ANG, Peter Pui Lok , CHALLA, Raghu Narayan
IPC: H04L5/00
Abstract: Methods, systems, and devices for wireless communications are described. In a wireless communications system, a user equipment (UE) may receive, from a base station, an indication of a set of component carriers (CCs) for the UE and a respective frequency range (FR) for each CC of the set of CCs. Each CC-FR pairing may be associated with a respective priority of a set of priorities. The UE may initiate a plurality of timers, where each timer of the plurality of timers may correspond to a respective CC-FR pairing. After expiration of a timer of the plurality of timers, the UE may measure one or more reference signals of a subset of the set of CCs based at least in part on a capability of the UE and a priority of the respective CC-FR pairing associated with the timer.
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30.发明申请
公开(公告)号：WO2022192116A1
公开(公告)日：2022-09-15
申请号：PCT/US2022/019097
申请日：2022-03-07
Applicant: QUALCOMM INCORPORATED
Inventor： LAGHATE, Mihir Vijay , ZHU, Jun , WU, Yongle , CHALLA, Raghu Narayan , LI, Yong
Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may perform a set of synchronization signal block (SSB) measurements and select a serving UE beam and a set of candidate UE beams for measuring a channel state information (CSI) reference signal (CSI-RS) based on the set of SSB measurements. The UE may identify, or predict, time resources for the CSI-RS based on previous CSI-RS configurations. The UE may measure the CSI-RS based on the time resources using a candidate UE beam from the set of candidate UE beams. The UE may transmit, to an access network entity, a measurement report based on measuring the CSI-RS using the candidate UE beam or a last CSI-RS measurement on the serving UE beam.
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