公开(公告)号：WO2021226950A1

公开(公告)日：2021-11-18

申请号：PCT/CN2020/090318

申请日：2020-05-14

Applicant: APPLE INC. ,  YAO, Chunhai

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

IPC: H04W72/04

Abstract: A method determines a number of physical sidelink shared channel (PSSCH) symbols and a number of PSSCH demodulation reference signal (DMRS) symbols that will occur in a timeslot that is used for scheduling. PSSCH DMRS locations in the timeslot are derived based on applying the PSSCH DMRS symbols and the PSSCH DMRS symbols to a look-up table. A number of PSSCH DMRS resource elements (REs) is calculated based on the PSSCH DMRS locations and a scheduled number of PSSCH sub-channels. This number of PSSCH DMRS REs is used to determine a transport block size (TBS) included in transmissions over a sidelink channel.

公开(公告)号：WO2021226929A1

公开(公告)日：2021-11-18

申请号：PCT/CN2020/090229

申请日：2020-05-14

Applicant: APPLE INC. ,  YAO, Chunhai

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

IPC: H04W72/04

Abstract: Methods to enhance the coverage of NR systems for coverage-limited wireless devices are disclosed. A serving base station may configure a coverage-limited UE with parameters for the UE to operate in a coverage enhancement mode through RRC signaling, DCI, or RAR grant. The UE may use the configuration parameters to determine whether to enter into the coverage enhancement mode when connecting and communicating with the serving base station. The configuration parameters may configure the UE to exploit both time diversity and frequency diversity to extend and enhance coverage when receiving the PDSCH and PDCCH channels, when transmitting the PUSCH and PUCCH channel, and when transmitting PUSCH Msg3 during random access. Advantageously, the base station may flexibly and dynamically configure the UE with coverage enhancement parameters to extend the coverage of the UE using time diversity and frequency diversity gains as the UE moves around.

公开(公告)号：WO2021203304A1

公开(公告)日：2021-10-14

申请号：PCT/CN2020/083778

申请日：2020-04-08

Applicant: APPLE INC. ,  YAO, Chunhai

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

IPC: H04W48/16

Abstract: A next generation evolved Node B (gNB) configured to provide an unlicensed bandwidth for communications with a user equipment (UE) performs a listen-before-talk procedure to determine an occupation state of busy or idle for the unlicensed bandwidth. When the occupation state is determined by the gNB to be idle, the gNB signals the UE, via a downlink control indicator (DCI), to conduct a channel access measurement (CAM) on the unlicensed bandwidth, the measurement comprising at least one of an energy detection measurement or a signal quality measurement. A measurement report is received from the UE comprising an indication of the occupation state of the unlicensed bandwidth as determined by the UE.

公开(公告)号：WO2021203285A1

公开(公告)日：2021-10-14

申请号：PCT/CN2020/083721

申请日：2020-04-08

Applicant: APPLE INC. ,  SUN, Haitong

Inventor： ZHANG, Dawei ,  XU, Fangli ,  HU, Haijing ,  CUI, Jie ,  ZENG, Wei ,  TANG, Yang ,  ZHANG, Yushu

IPC: H04W72/04

Abstract: Methods and apparatuses are disclosed for configuring full power transmission modes in a UE. The disclosed full power transmission modes include a Mode 0 and a Mode 3, which are enhancements over previous modes disclosed in the 3GPP specification. The UE gathers supported modes and configuration capabilities, such as number of ports and supported coherency schemes, and forwards the configuration capabilities to the network. The network analyzes the received information and selects a supported full power transmission mode based on the UE capabilities. The selection is then transmitted to the UE in a PUSCH-Config message. The UE extracts the selection from the PUSCH-Config message, and configures its radio accordingly.

公开(公告)号：WO2021203263A1

公开(公告)日：2021-10-14

申请号：PCT/CN2020/083654

申请日：2020-04-08

Applicant: APPLE INC. ,  ZHANG, Yushu

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

IPC: H04W24/04

Abstract: Apparatuses, systems, and methods for user equipment device (UE) uplink antenna panel selection. The UE may determine, based on at least one condition, to perform a beam switch from a current beam being used for communications with a base station. The UE may transmit, to the base station, an indication of an antenna panel status that may include an indication of a latency associated with the beam switch. The UE may receive, from the base station, an indication to switch to a target beam and to perform the switch, based on the indication, to the target beam. The indication of the antenna panel status may include a beam switching latency level for each beam in a beam report, a beam switch request that may indicate the target beam, and/or a beam switch request that may indicate that an antenna panel switch is to be applied by the UE.

公开(公告)号：WO2021159853A1

公开(公告)日：2021-08-19

申请号：PCT/CN2020/136590

申请日：2020-12-15

Applicant: APPLE INC.

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

IPC: H04W72/04

Abstract: Methods and apparatus are provided for a UE to determine a UL spatial relation for an UL transmission in response to an unknown UL spatial relation switch. The UE may determine whether the UL spatial relation is based on an SRS transmission in UL, a CSI-RS in DL, or an SSB in the DL. If the UL spatial relation is based on the SRS transmission, the UE may select the UL spatial relation for the UL transmission corresponding to a Tx beam of the SRS transmission. If the UL spatial relation is based on the CSI-RS or the SSB, the UE may select the UL spatial relation for the UL transmission based on whether the unknown UL spatial relation switch is due to a corresponding resource for beam training not being configured by a communication network or a corresponding beam information being expired.

公开(公告)号：WO2021159852A1

公开(公告)日：2021-08-19

申请号：PCT/CN2020/136588

申请日：2020-12-15

Applicant: APPLE INC.

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

IPC: H04W24/10

Abstract: Methods and apparatus are provided for searcher resource coordination between NR mobility based measurement and LTE (E-UTRA) PRS based measurement without measurement gap in EN-DC mode or NE-DC mode. Other embodiments are also provided for searcher resource coordination between NR PRS measurement and LTE (E-UTRA) PRS measurement without measurement gap in EN-DC mode or NE-DC mode. Further embodiments provide for searcher resource coordination between NR or LTE (E-UTRA) PRS measurement and NR mobility measurement without measurement gap in EN-DC mode or NE-DC mode.

公开(公告)号：WO2021159848A1

公开(公告)日：2021-08-19

申请号：PCT/CN2020/136517

申请日：2020-12-15

Applicant: APPLE INC.

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

IPC: H04W72/08

Abstract: Systems and methods are provided for determining which part or operation of one or more Secondary Cell (SCell) activation process (es) to defer or restart when an attempt to simultaneously perform multiple operations of the one or more SCell activation processes would cause interference. For example, radio frequency (RF) tuning and/or automatic gain control (AGC) settling for an SCell activation may be deferred until after a Hybrid Automatic Repeat Request (HARQ) for the SCell activation is sent by a UE to the SCell. In another example, RF tuning and/or AGC settling corresponding to the activation of a first SCell may be deferred until after RF tuning and/or AGC settling corresponding to the activation of a second SCell is complete.

公开(公告)号：WO2021159351A1

公开(公告)日：2021-08-19

申请号：PCT/CN2020/074949

申请日：2020-02-12

Applicant: APPLE INC. ,  ZHANG, Yushu

Inventor： ZHANG, Dawei ,  SUN, Haitong ,  CUI, Jie ,  ZENG, Wei

IPC: H04W64/00

Abstract: Some embodiments include an apparatus, method, and computer program product for using low layer protocols for inter-cell mobility management in a 5G wireless communications system. A serving 5G node B (gNB) can configure reports that a user equipment (UE) transmits to the serving gNB to make handover decisions. The serving gNB can configure a group of Transmission Configuration Indication (TCI) states (e. g., a group of beams) that correspond a physical cell, and the report includes layer 3 measurements corresponding to a neighboring or serving cell's TCI state. The report can be conveyed using lower layer protocols. The report can include layer 1 measurements conveyed using a layer 1 protocol and the serving gNB can perform filtering to generate corresponding layer 3 measurement results. Based on the reports, the serving gNB can perform a handover and synchronization using lower layer protocols, from one TCI state to another.

公开(公告)号：WO2021159348A1

公开(公告)日：2021-08-19

申请号：PCT/CN2020/074944

申请日：2020-02-12

Applicant: APPLE INC. ,  ZHANG, Yushu

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

IPC: H04W74/00

Abstract: The implementations disclosed provide apparatus, systems, and methods for channel structure construction for a two-step random access channel (RACH) using a new radio (NR) user equipment (UE) wireless device. The wireless device includes one or more computer processors configured to generate a physical RACH (PRACH) preamble mapped to a physical uplink shared channel (PUSCH) resource unit. The PRACH preamble is associated with a preamble group indicating a configuration of the PUSCH. The preamble group has a size indicated by radio resource control (RRC) signaling performed by the wireless device. A message is encoded including the PRACH preamble and a payload carried by the PUSCH. The configuration of the PUSCH includes parameters for decoding the message. The wireless device couples communicatively to a base station using the PUSCH. The message is transmitted to the base station. The base station decodes the message based on the parameters of the PUSCH configuration.