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131.
公开(公告)号:EP4503741A3
公开(公告)日:2025-04-30
申请号:EP24211114.4
申请日:2020-04-08
Applicant: Apple Inc.
Inventor: CUI, Jie , ZHANG, Dawei , HE, Hong , SHIKARI, Murtaza A. , TANG, Yang , KIM, Yuchul , WU, Zhibin , XU, Fangli
Abstract: Methods and apparatus are disclosed for a UE and its serving base station to coordinate the activation and deactivation of measurement gaps for performing positioning measurements by the UE using target positioning reference signals (PRS) during bandwidth part (BWP) switching. The UE may be configured by the serving base station to have dedicated measurement gaps. The UE determines if a legacy measurement gap used for mobility measurements or a scheduled data transmission collides with the dedicated measurement gaps. If there is a collision, the UE performs the mobility measurement using the legacy measurement gap or transmits the scheduled data. If there is no collision, the UE receives the PRS to perform the positioning measurement during the dedicated measurement gaps. In one embodiment, based on the status of the active BWP and the target PRS, the UE or the base station may activate or deactivate measurement gaps for the positioning measurements.
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公开(公告)号:EP4456611A2
公开(公告)日:2024-10-30
申请号:EP24199780.8
申请日:2020-04-01
Applicant: Apple Inc.
Inventor: KIM, Yuchul , ZENG, Wei , SUN, Haitong , ZHANG, Dawei , TANG, Jia , LI, Yang , JI, Zhu , SEBENI, Johnson O.
IPC: H04W52/02
Abstract: Apparatuses, systems, and methods for a wireless device to perform methods for configuring a power savings signal in fifth generation (5G) new radio (NR) networks. The wireless device may transmit, to a base station within a network, power savings requirements and receiving, from the base station, a configuration of a power saving signal, where the configuration indicates one or more functionalities of the power saving signal. The wireless device may periodically receive, from the base station, the power saving signal and interpret the power saving signal based on the configuration. The configuration of the power saving signal may be received via radio resource control signaling.
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公开(公告)号:EP4224755A1
公开(公告)日:2023-08-09
申请号:EP23168174.3
申请日:2020-10-30
Applicant: Apple Inc.
Inventor: YE, Chunxuan , YANG, Weidong , OTERI, Oghenekome , YAO, Chunhai , ZHANG, Dawei , SUN, Haitong , HE, Hong , CUI, Jie , ZENG, Wei , TANG, Yang , KIM, Yuchul , ZHANG, Yushu
IPC: H04L1/06 , H04L1/00 , H04L1/1812
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.
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公开(公告)号:EP4221054A1
公开(公告)日:2023-08-02
申请号:EP23164234.9
申请日:2018-04-20
Applicant: Apple Inc.
Inventor: ZENG, Wei , KIM, Yuchul , ZHANG, Dawei
Abstract: This disclosure relates to techniques for a base station (BS) to configure default and supplementary sync signals (SS) at sub-band bandwidths in a wireless communication system. The supplementary SS may be configured in response to a determination that the BS is in wireless communications with a UE using a single narrow band radio-frequency chain. The BS may configure the supplementary SS to be proximate in frequency to a PDCCH search space currently in use by the UE. The default SS may be configured to support initial access and may have a shorter periodicity, while the supplementary SS may be configured to not support initial access and may have a longer periodicity. The BS may additionally or alternatively configure a tracking reference signal (RS), wherein the tracking RS is configured on-demand based on a current network load of the BS. The tracking RS may be configured at a sub-band bandwidth, wherein the sub-band bandwidth is selected based on a bandwidth allocated to an active UE in wireless communication with the BS.
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公开(公告)号:EP4165922A1
公开(公告)日:2023-04-19
申请号:EP20946288.6
申请日:2020-07-21
Applicant: Apple Inc.
Inventor: ZHANG, Dawei , HU, Haijing , SHIKARI, Murtaza A. , VANGALA, Sarma V. , GURUMOORTHY, Sethuraman , LOVLEKAR, Srirang A. , ZENG, Wei , KIM, Yuchul , CHEN, Yuqin , WU, Zhibin , XU, Fangli
IPC: H04W68/00
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公开(公告)号:EP4136795A1
公开(公告)日:2023-02-22
申请号:EP20936031.2
申请日:2020-05-14
Applicant: Apple Inc.
Inventor: YAO, Chunhai , YE, Chunxuan , ZHANG, Dawei , SUN, Haitong , CUI, Jie , OTERI, Oghenekome , ZENG, Wei , ZHANG, Wei , YANG, Weidong , TANG, Yang , KIM, Yuchul , ZHANG, Yushu , WU, Zhibin , HE, Hong
IPC: H04L5/00
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公开(公告)号:EP4131812A1
公开(公告)日:2023-02-08
申请号:EP22196247.5
申请日:2020-02-12
Applicant: Apple Inc.
Inventor: YE, Chunxuan , ZHANG, Dawei , ZENG, Wei , ZHANG, Yushu , HE, Hong , SUN, Haitong , YANG, Weidong , OTERI, Oghenekome , KIM, Yuchul , TANG, Yang , CUI, Jie , YAO, Chunhai
Abstract: Systems, methods, and circuitries are provided for performing sidelink communication. An example method indicates a frequency resource reservation in sidelink control information (SCI). The method includes identifying a transport block (TB) for transmission to a UE; determining a total number of sub-channels (N SL ) in a resource pool for sidelink communication, a number of sub-channels (L sub ) of the TB, a first starting sub-channel index x 1 of a first retransmission of the TB, and a second starting sub-channel index x 2 of a second retransmission of the TB. The method includes determining a frequency resource indication value (FRIV) based on N SL , L SUB , x 1 , and x 2 , wherein the FRIV represents a result of a predetermined function of L sub , x 1 , and x 2 that generates a unique value for possible combinations of L sub , x 1 , and x 2 . The FRIV is encoded in SCI and the SCI is transmitted to the UE.
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公开(公告)号:EP4124145A1
公开(公告)日:2023-01-25
申请号:EP22193744.4
申请日:2021-05-17
Applicant: Apple Inc.
Inventor: ZHANG, Yushu , CUI, Jie , SAMBHWANI, Sharad , TANG, Yang , HE, Hong , ZHANG, Dawei , ZENG, Wei , SUN, Haitong , KIM, Yuchul , YAO, Chunhai , YE, Chunxuan , YANG, Weidong , WU, Zhibin , NICKISCH, Dirk
Abstract: A wireless network may include a base station and user equipment (UE). The UE may transmit uplink (UL) signals to the base station using a dynamically adjustable maximum UL duty cycle. When the UE identifies that a user is in proximity to the UE, the UE may transmit an indicator to the base station. The indicator may identify that a radiofrequency exposure (RFE) event has occurred and/or a suggested maximum UL duty cycle that would allow the UE to satisfy limits on RFE. The base station may limit a UL grant to the UE so that the UE performs subsequent communications using the suggested maximum UL duty cycle or a different maximum UL duty cycle. Coordinating adjustment of UL duty cycle in this way may allow the UE to meet limits on RFE without requiring the UE to perform maximum transmit power level reductions.
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公开(公告)号:EP4120782A1
公开(公告)日:2023-01-18
申请号:EP22193736.0
申请日:2021-05-17
Applicant: Apple Inc.
Inventor: ZHANG, Yushu , CUI, Jie , SAMBHWANI, Sharad , TANG, Yang , HE, Hong , ZHANG, Dawei , ZENG, Wei , SUN, Haitong , KIM, Yuchul , YAO, Chunhai , YE, Chunxuan , YANG, Weidong , WU, Zhibin , NICKISCH, Dirk
Abstract: A wireless network may include a base station and user equipment (UE). The UE may transmit uplink (UL) signals to the base station using a dynamically adjustable maximum UL duty cycle. When the UE identifies that a user is in proximity to the UE, the UE may transmit an indicator to the base station. The indicator may identify that a radiofrequency exposure (RFE) event has occurred and/or a suggested maximum UL duty cycle that would allow the UE to satisfy limits on RFE. The base station may limit a UL grant to the UE so that the UE performs subsequent communications using the suggested maximum UL duty cycle or a different maximum UL duty cycle. Coordinating adjustment of UL duty cycle in this way may allow the UE to meet limits on RFE without requiring the UE to perform maximum transmit power level reductions.
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公开(公告)号:EP4088503A1
公开(公告)日:2022-11-16
申请号:EP20918571.9
申请日:2020-02-12
Applicant: Apple Inc.
Inventor: VANGALA, Sarma V. , ZHANG, Dawei , HU, Haijing , SHIKARI, Murtaza A. , GURUMOORTHY, Sethuraman , LOVLEKAR, Srirang A. , ZENG, Wei , KIM, Yuchul , CHEN, Yuqin , WU, Zhibin , XU, Fangli
IPC: H04W24/02
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