公开(公告)号：US20230025057A1

公开(公告)日：2023-01-26

申请号：US17441683

申请日：2020-04-08

Applicant: Apple Inc.

Inventor： Haitong SUN ,  Chunhai YAO ,  Chunxuan YE ,  Dawei ZHANG ,  Hong HE ,  Jia TANG ,  Oghenekome OTERI ,  Pengkai ZHAO ,  Tianyan PU ,  Wei ZENG ,  Wei ZHANG ,  Weidong YANG ,  Yeong-Sun HWANG ,  Yuchul KIM ,  Yushu ZHANG

IPC: H04W16/28 ,  H04W24/10 ,  H04B17/336 ,  H04W52/36

Abstract: Some embodiments include an apparatus, method, and computer program product for using group based reporting for beam management in a 5G wireless communications system. A user equipment (UE) can determine based on a signal-to-interference-plus noise ratio (SINR) or reference signal received power (RSRP) measurement, a ranking of two or more beam combinations, and transmit the ranking to a 5G node B (gNB). The UE can receive from the gNB, a transmission configuration indicator (TCI) codepoint that identifies a combination of two or more beams, where the TCI codepoint is based at least on the ranking. The UE can receive simultaneous transmissions via the combination, and transmit a report to the gNB that identifies by the TCI codepoint, SINRs that corresponds to the combination. In some embodiments the UE can simultaneously transmit on a second combination identified by a sounding reference signal (SRS) resource indicator (SRI) codepoint.

公开(公告)号：US20220312505A1

公开(公告)日：2022-09-29

申请号：US17593535

申请日：2020-10-15

Applicant: APPLE INC.

Inventor： Pengkai ZHAO ,  Dawei ZHANG ,  Edmund J. STOCKS ,  Fangli XU ,  Haijing HU ,  Haitong SUN ,  Jie CUI ,  Madhusudan CHAUDHARY ,  Rajesh AMBATI ,  Thanigaivelu ELANGOVAN ,  Wei ZENG ,  Wen ZHAO ,  Yang TANG

IPC: H04W74/08 ,  H04L5/00

Abstract: Reporting potential impacts of sounding reference signal-switching (SRS-switching) to a base station may include determining that SRS-switching is to be performed by a UE. Based on determining that SRS-switching is to be performed, potential impacts to one or more of a plurality of radio access technologies (RATs) caused by performing SRS-switching while sharing radio frequency (RF) front-ends (RFFE) between at least a subset of the plurality of RATS may be processed. The potential impacts may comprise at least one of transmit-blanking (Tx-blanking) and receive-blanking (Rx-blanking) associated with one or more of the subset of RATs. A communication that indicates the potential impacts of SRS-switching may be encoded for transmission to a base station. The base station may also provide priority configurations for determining how to handle Tx-blanking, Rx-blanking, and SRS-skipping associated with SRS-switching.

公开(公告)号：US20220312417A1

公开(公告)日：2022-09-29

申请号：US17593553

申请日：2020-10-22

Applicant: APPLE INC.

Inventor： Naveen Kumar R Palle VENKATA ,  Fangli XU ,  Haijing HU ,  Lakshmi N. KAVURI ,  Muthukumaran DHANAPAL ,  Pengkai ZHAO ,  Sarma V. VANGALA ,  Thanigaivelu ELANGOVAN ,  Wenping LOU ,  Yuqin CHEN ,  Zhibin WU

IPC: H04W72/04 ,  H04W76/27

Abstract: Systems and methods provide secondary cell group (SCG) activation and deactivation. A user equipment (UE) in a wireless network may determine bandwidth part (BWP) configurations for a carrier of a primary secondary cell (PSCell) of an SCG for dual connectivity (DC). The UE may move between an SCG activation state and an SCG deactivation state based on the BWP configurations. SCG deactivation modeling may be based on a separate BWP configuration or may be modeled via a separate configuration in radio resource control (RRC) that is applicable to the BWPs in a serving cell.

公开(公告)号：US20220311477A1

公开(公告)日：2022-09-29

申请号：US17593539

申请日：2021-04-15

Applicant: APPLE INC.

Inventor： Haitong SUN ,  Chunhai YAO ,  Chunxuan YE ,  Dawei ZHANG ,  Hong HE ,  Oghenekome OTERI ,  Pengkai ZHAO ,  Sigen YE ,  Wei ZENG ,  Weidong YANG ,  Wen ZHAO ,  Yushu ZHANG

IPC: H04B7/0408 ,  H01Q15/24 ,  H04B7/155 ,  H04B7/0456 ,  H04B7/10

Abstract: Various systems and methods disclosed herein describe improvements for beam management that leverage virtualization across a vertical polarization (V-Pol) and horizontal polarization (H-Pol). One or more of a user equipment (UE) and a base station may include an antenna array comprising V-Pol antenna elements and H-Pol antenna elements. The UE may determine a number of receive (Rx) beam of an Rx beam sweep are needed, signal this number to the base station, and perform the beam sweep according to one or both of the V-Pol and H-Pol. A UE may use group based beam reporting to indicate to the base station a transmit (Tx) beam upon which downlink MIMO using V-Pol and H-Pol may be supported by reporting a same transmission configuration indication (TCI) corresponding to the Tx beam for both a first Rx beam and a second Rx beam in a group based beam reporting message.