公开(公告)号：WO2021159340A1

公开(公告)日：2021-08-19

申请号：PCT/CN2020/074936

申请日：2020-02-12

Applicant: APPLE INC. ,  ZHANG, Yushu

Inventor： YAO, Chunhai ,  YE, Chunxuan ,  ZHANG, Dawei ,  XU, Fangli ,  HU, Haijing ,  SUN, Haitong ,  HE, Hong ,  CUI, Jie ,  OTERI, Oghenekome ,  YANG, Weidong ,  ZENG, Wei ,  TANG, Yang ,  KIM, Yuchul ,  CHEN, Yuqin

IPC: H04W72/04

Abstract: The implementations disclosed provide apparatus, systems, and methods for downlink control information (DCI) enhancement for a reduced-complexity new radio (NR) wireless device. The wireless device includes one or more processors configured to transmit a type of the wireless device to a base station communicatively coupled to the wireless device. A format of the DCI is received from the base station. The DCI includes multiple bit strings indicating a schedule of a physical downlink shared channel (PDSCH) or a physical uplink shared channel (PUSCH). The format specifies a respective number of bits for each bit string. The format is defined by the base station based on the type of the wireless device. The DCI is received from the base station using a physical downlink control channel (PDCCH). The multiple bit strings are extracted from the DCI based on the format of the DCI.

公开(公告)号：WO2021159331A1

公开(公告)日：2021-08-19

申请号：PCT/CN2020/074927

申请日：2020-02-12

Applicant: APPLE INC. ,  YAO, Chunhai

Inventor： HE, Hong ,  ZHANG, Dawei ,  ZENG, Wei ,  SUN, Haitong ,  KIM, Yuchul ,  ZHANG, Yushu ,  YE, Chunxuan ,  OTERI, Oghenekome ,  YANG, Weidong ,  TANG, Yang ,  CUI, Jie ,  WU, Zhibin ,  ZHAO, Pengkai

IPC: H04W88/02

Abstract: A method and apparatus for a wireless device of reduced capabilities to access a wireless communication network targeted to operate with wireless device having higher capabilities is disclosed. The device may receive from a base station of the wireless communication network an indication of whether the type of devices that includes the wireless device of reduced capabilities is allowed to access the wireless communication network. The device may transmit to the base station signaling associated with connecting to the base station if the base station indicates that the type of devices with reduced capabilities is allowed to access the wireless communication network. The signaling allows the device to connect to the base station. The device may transmit capability information of the device to the base station. The device may configure its features based on the capability information to communicate with the base station.

公开(公告)号：WO2021159318A1

公开(公告)日：2021-08-19

申请号：PCT/CN2020/074903

申请日：2020-02-12

Applicant: APPLE INC. ,  YAO, Chunhai

Inventor： YE, Chunxuan ,  ZENG, Wei ,  ZHANG, Yushu ,  OTERI, Oghenekome ,  YANG, Weidong ,  HE, Hong ,  SUN, Haitong ,  TANG, Yang ,  CUI, Jie ,  KIM, Yuchul ,  ZHANG, Dawei ,  TANG, Jia

IPC: H04W4/40

Abstract: Systems, methods, and circuitries are provided for performing sidelink communication. An example method generates SCI stage 1 and stage 2 for transmitting a transport block (TB) to a user equipment device (UE). The method includes determining the type of sidelink communication for transmitting the TB. An SCI stage 2 format is selected based on the type of sidelink communication. An SCI stage 2 payload is encoded in accordance with the selected SCI stage 2 format. The selected SCI stage 2 format value is encoded in an SCI stage 1 payload. The SCI stage 1 payload and SCI stage 2 payload are transmitted to the UE.

公开(公告)号：WO2021159316A1

公开(公告)日：2021-08-19

申请号：PCT/CN2020/074901

申请日：2020-02-12

Applicant: APPLE INC. ,  YAO, Chunhai

Inventor： SUN, Haitong ,  YANG, Weidong ,  ZHANG, Yushu ,  ZENG, Wei ,  ZHANG, Dawei ,  KIM, Yuchul ,  HE, Hong ,  YE, Chunxuan ,  OTERI, Oghenekome ,  HATTAB, Ghaith N. ,  GUTIERREZ GONZALEZ, Ismael ,  CUI, Jie ,  TANG, Yang ,  HWANG, Yeong-Sun

IPC: H04W72/04 ,  H04B7/0456

Abstract: A base station and wireless communication (UE) may perform type II CSI-RS port selection based at least on partial reciprocity between an uplink path and a downlink path between the base station and the UE. The base station may identify dominant signal paths between the base station and the UE, based on measurements performed during uplink transmissions, and may transmit, to the UE, corresponding information indicative of CSI measurement and reporting configuration that may include a single measurement resource or multiple measurement resources. Each measurement resource may include multiple-port CSI-RS ports. The UE may indicate, to the base station, selection of a measurement resource when multiple measurement resources are configured, and may also report layer independent or layer common selection of a subset of CSI-RS ports included in the indicated single measurement resource or multiple measurement resources. Further enhancements include frequency domain compression enhancement and dynamic codebook parameter reconfiguration.

公开(公告)号：WO2021102803A1

公开(公告)日：2021-06-03

申请号：PCT/CN2019/121628

申请日：2019-11-28

Applicant: APPLE INC. ,  ZHANG, Yushu

Inventor： TANG, Yang ,  XU, Fangli ,  YAO, Chunhai ,  KIM, Yuchul ,  HE, Hong ,  YE, Chunxuan ,  YANG, Weidong ,  SUN, Haitong ,  HU, Haijing ,  ZHANG, Dawei ,  ZENG, Wei

IPC: H04W72/12

Abstract: A base station may configure a user equipment (UE) to perform sounding reference signal (SRS) transmissions using an SRS resource set. The SRS resource set may be configured for two or more functions, e.g., functions such as codebook-based SRS transmission, non-codebook-based SRS transmission, antenna port switching, beam management, etc. By enabling the use of such dual function (or multi-function) SRS resource sets, the average data rate associated with configuration transmissions to the UE may be reduced.

公开(公告)号：WO2021102788A1

公开(公告)日：2021-06-03

申请号：PCT/CN2019/121563

申请日：2019-11-28

Applicant: APPLE INC. ,  SUN, Haitong

Inventor： ZHANG, Wei ,  PU, Tianyan ,  ZHAO, Pengkai ,  TANG, Jia ,  ZHANG, Yushu ,  KIM, Yuchul ,  HE, Hong ,  ZHANG, Dawei ,  ZENG, Wei

IPC: H04W52/00

Abstract: Apparatuses, systems, and methods to indicate power transmission capability for a wireless device. A wireless device may connect to a base station (BS). The wireless device may transmit information regarding transmit power capability to the BS. The wireless device may indicate support for full power transmit capability for a subset of TPMIs for which it provides full power transmit capability, e.g., in a bitmap. This subset of TPMIs may be less than all of the available TPMIs (i.e., it may be a strict subset of the available TPMIs). Full power transmission capability of these indicated TPMIs may be provided via antenna switching and/or antenna virtualization. The wireless device may perform uplink transmission to the BS according to the transmit power capability indicated in the information. For example, the UE may transmit data using the antenna virtualization related to the subset of the TPMIs.

公开(公告)号：WO2021102785A1

公开(公告)日：2021-06-03

申请号：PCT/CN2019/121551

申请日：2019-11-28

Applicant: APPLE INC. ,  HE, Hong

Inventor： ZHAO, Pengkai ,  ZENG, Wei ,  ZHANG, Dawei ,  SUN, Haitongi ,  KIM, Yuchul ,  YAO, Chunhai ,  ZHANG, Yushu ,  ZHANG, Wei ,  YANG, Weidong ,  YE, Chunxuan

IPC: H04W76/28 ,  H04W72/12

Abstract: A device may wirelessly communicate with a number of different cells used in a carrier aggregation. The device may monitor physical downlink control channels (PDCCHs) on the different cells, dynamically switching between a dormant monitoring state (DS) and an active monitoring state (AS). In the DS, the UE may not monitor any PDCCH candidates on the active secondary SCells corresponding to the DS, or it may monitor PDCCH candidates in the search space (SS) set with the largest monitoring periodicity among the multiple SS sets on the active bandwidth part (BWP). In the AS, the UE may monitor a set of PDCCH candidates in physical resources configured by higher layers on the BWPs. Switching from one monitoring state to another may be facilitated through the use of a new downlink control information (DCI) format without data scheduling, a modified existing DCI format with data scheduling, and/or use of a DS timer.

公开(公告)号：WO2021087857A1

公开(公告)日：2021-05-14

申请号：PCT/CN2019/116235

申请日：2019-11-07

Applicant: APPLE INC. ,  ZHANG, Yushu

Inventor： YE, Chunxuan ,  YANG, Weidong ,  OTERI, Oghenekome ,  YAO, Chunhai ,  ZHANG, Dawei ,  SUN, Haitong ,  HE, Hong ,  CUI, Jie ,  ZENG, Wei ,  TANG, Yang ,  KIM, Yuchul

IPC: H04W72/02

Abstract: Embodiments are presented herein of apparatuses, systems, and methods for a vehicle-to-everything (V2X) capable wireless device configured to perform sidelink cellular communications. The wireless device performs sidelink communications using a two-stage sidelink control information (SCI) protocol including Stage 1 SCI messaging carried on a physical sidelink control channel (PSCCH), and Stage 2 SCI messaging carried on a physical sidelink shared channel (PSSCH). The SCI messaging may be encoded using polar codes. Channel interleaving is utilized on the SCI to interleave the SCI between two or more layers of a MIMO transmission system. Scrambling for Stage 2 SCI messaging is performed based on the result of a cyclic redundancy check (CRC) performed on Stage 1 SCI messaging. Collisions between sidelink HARQ feedback to be transmitted to a base station and other transmissions is avoided based on a priority analysis of the sidelink HARQ feedback.

公开(公告)号：WO2021056509A1

公开(公告)日：2021-04-01

申请号：PCT/CN2019/108879

申请日：2019-09-29

Applicant: APPLE INC. ,  ZHANG, Yushu

Inventor： SUN, Haitong ,  ZHANG, Dawei ,  HU, Haijing ,  ZENG, Wei ,  HE, Hong ,  YAO, Chunhai ,  KIM, Yuchul ,  CHEN, Yuqin ,  XU, Fangli ,  SUN, Yakun

IPC: H04W72/04 ,  H04B7/0408 ,  H04L5/14

Abstract: To reduce the beam reporting latency, a base station may include a sounding reference signal (SRS) indication to a wireless communication device (UE) as part of the transmission configuration information (TCI) transmitted to the UE, allowing the UE to receive a corresponding downlink signal using the same beam (or with the same beam) the UE used to transmit (or with which the UE transmitted) the SRS indicated in the TCI. The SRS may be one of multiple SRSs previously transmitted by the UE. The UE may transmit the multiple SRSs periodically and/or according to semi-persistent scheduling, or it may transmit them aperiodically. Therefore, the UE does not need to report the beam quality, and the base station may perform the necessary beam measurement (s) instead. Various parameters and conditions may be defined for the UE to support SRS-based TCI.

公开(公告)号：WO2021046809A1

公开(公告)日：2021-03-18

申请号：PCT/CN2019/105721

申请日：2019-09-12

Applicant: APPLE INC. ,  SUN, Haitong

Inventor： YAO, Chunhai ,  ZHANG, Dawei ,  HE, Hong ,  NABAR, Rohit, U. ,  ZENG, Wei ,  SUN, Yakun ,  KIM, Yuchul ,  ZHANG, Yushu

IPC: H04B7/02

Abstract: Apparatuses, systems, and methods for a user equipment device (UE) to perform methods for triggering a change in beam configuration based on UL beam conditions. The UE may detect an unsafe UL beam condition for an UL beam based, at least in part, on an MPE level being exceeded by the UL beam. In response to the detection, remedial actions that to alleviate the unsafe UL beam condition may be performed. The remedial actions may prioritize UL beam quality over DL beam quality and may include reducing a transmit power of the UL beam based on an MPR, triggering an intra-panel antenna switch to a candidate UL beam that satisfies one or more conditions for intra-panel beam switching, triggering an inter-panel antenna switch to a candidate UL beam that satisfies one or more conditions for intra-panel beam switching, and/or signaling a beam failure to a network serving the UE.