公开(公告)号：US20230328802A1

公开(公告)日：2023-10-12

申请号：US18334933

申请日：2023-06-14

Applicant: Apple Inc.

Inventor： Chunhai Yao ,  Clive E. Rodgers ,  Dawei Zhang ,  Fangli Xu ,  Haijing Hu ,  Haitong Sun ,  Wei Zeng ,  Yuqin Chen ,  Yushu Zhang ,  Zhibin Wu

IPC: H04W74/08 ,  H04W72/1268 ,  H04W74/00

CPC classification number: H04W74/0833 ,  H04W72/1268 ,  H04W74/006

Abstract: A wireless user equipment (UE) device may transmit a random access preamble to a base station, using a physical resource on an uplink signal. After failing to receive an initial transmission of a response message from the base station (BS), the UE device may monitor for one or more retransmissions of the response message. Each of the retransmission may include a corresponding transmission number. As an alternative, each of the retransmissions may be at least partially scrambled using a corresponding Radio Network Temporary Identifier (RNTI). As another alternative, a window for monitoring and RNTI calculation may be extended to include the one or more retransmissions. The successive retransmissions may include the same set of UE-specific payloads, or, a decreasing set of payloads over time as UE devices acknowledge successful receipt of their respective payloads.

公开(公告)号：US11777673B2

公开(公告)日：2023-10-03

申请号：US17052109

申请日：2019-11-07

Applicant: Apple Inc.

Inventor： Yushu Zhang ,  Dawei Zhang ,  Haijing Hu ,  Wei Zeng ,  Yang Tang ,  Haitong Sun ,  Yuchul Kim ,  Hong He ,  Chunhai Yao ,  Chunxuan Ye ,  Weidong Yang ,  Oghenekome Oteri ,  Jie Cui ,  Fangli Xu ,  Yuqin Chen

IPC: H04L5/00

CPC classification number: H04L5/0035 ,  H04L5/0051

Abstract: A user equipment (UE) communicates with transmission-reception points (TRPs). When the UE generates uplink control information (UCI), it determines a higher layer index (HLI) value to target the UCI to the appropriate TRP. (Possible values of the HLI are associated with the TRPs.) For UCI on Physical Uplink Control Channel (PUCCH), the HLI value may be determined: based on an HLI value configured for a control resource set (CORESET), or for particular Physical Uplink Control Channel (PUCCH) resources; based on UCI type or spatial relation data or an index related to PUCCH resources. For UCI on a configured-grant Physical Uplink Shared Channel (PUSCH), the HLI value may be based on higher layer signals or an indicator relating to channel sounding on spatial relation data. For UCI on MsgA PUSCH in a two-step random access procedure, the HLI value may be based on PUSCH resource unit or PUSCH opportunity.

公开(公告)号：US20230283446A1

公开(公告)日：2023-09-07

申请号：US17789756

申请日：2021-09-24

Applicant: APPLE INC.

Inventor： Chunxuan Ye ,  Dawei Zhang ,  Haitong Sun ,  Hong He ,  Oghenekome Oteri ,  Seyed Ali Akbar Fakoorian ,  Sigen Ye ,  Weidong Yang ,  Wei Zeng ,  Yushu Zhang ,  Chunhai Yao

IPC: H04L5/14 ,  H04W72/1268 ,  H04W72/23 ,  H04W72/566

CPC classification number: H04L5/14 ,  H04W72/1268 ,  H04W72/23 ,  H04W72/566

Abstract: A user equipment for cross-division duplex (XDD) operations comprises circuitry configured to perform operations for determining a transmission direction for a slot of a frame structure as being an uplink (UL) slot or a downlink (DL) slot operating in XDD mode based on scheduling data from a base station. The UE is configured to receive scheduling data indicating a switching gap of the frame structure for switching from DL to UL transmission, determine that the switching gap is smaller than a threshold value to cause a collision between UL transmission and DL reception for a slot, and resolve the collision based on the UL transmission and the DL reception.

公开(公告)号：US11723073B2

公开(公告)日：2023-08-08

申请号：US17040437

申请日：2019-09-29

Applicant: Apple Inc.

Inventor： Chunhai Yao ,  Clive E. Rodgers ,  Dawei Zhang ,  Fangli Xu ,  Haijing Hu ,  Haitong Sun ,  Wei Zeng ,  Yuqin Chen ,  Yushu Zhang ,  Zhibin Wu

IPC: H04W74/08 ,  H04W72/1268 ,  H04W74/00

CPC classification number: H04W74/0833 ,  H04W72/1268 ,  H04W74/006

Abstract: A wireless user equipment (UE) device may transmit a random access preamble to a base station, using a physical resource on an uplink signal. After failing to receive an initial transmission of a response message from the base station (BS), the UE device may monitor for one or more retransmissions of the response message. Each of the retransmission may include a corresponding transmission number. As an alternative, each of the retransmissions may be at least partially scrambled using a corresponding Radio Network Temporary Identifier (RNTI). As another alternative, a window for monitoring and RNTI calculation may be extended to include the one or more retransmissions. The successive retransmissions may include the same set of UE-specific payloads, or, a decreasing set of payloads over time as UE devices acknowledge successful receipt of their respective payloads.

公开(公告)号：US11716122B2

公开(公告)日：2023-08-01

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 ,  H04B7/0456 ,  H04B7/10 ,  H04B7/155

CPC classification number: H04B7/0408 ,  H01Q15/246 ,  H04B7/0469 ,  H04B7/10 ,  H04B7/1555

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.

公开(公告)号：US20230189305A1

公开(公告)日：2023-06-15

申请号：US17438157

申请日：2021-04-06

Applicant: Apple Inc.

Inventor： Oghenekome Oteri ,  Huaning Niu ,  Chunhai Yao ,  Chunxuan Ye ,  Dawei Zhang ,  Hong He ,  Seyed Ali Akbar Fakoorian ,  Sigen Ye ,  Wei Zeng ,  Weidong Yang ,  Yushu Zhang ,  Wenshu Zhang ,  Wei Zhang ,  Haitong Sun

IPC: H04W72/51 ,  H04W72/0446 ,  H04W72/232 ,  H04W48/12

CPC classification number: H04W72/51 ,  H04W48/12 ,  H04W72/232 ,  H04W72/0446

Abstract: This disclosure relates to techniques for improving capability signaling and performing search space set switching, particularly with large sub-carrier spacings, as in high frequency ranges. In various scenarios, a user equipment (UE) device may signal its capability to perform multi-slot PDCCH monitoring and/or single-slot PDCCH monitoring, e.g., at various sub-carrier spacings, for various PDCCH/DCI types, etc. Various technical difficulties in this area are addressed, including increasing flexibility and versatility in capability signaling, overbooking, signaling and timing of search space set switching, and beam sweeping transmission of DCI Format 2_0, among others.

公开(公告)号：US20230163939A1

公开(公告)日：2023-05-25

申请号：US17786304

申请日：2021-09-02

Applicant: APPLE INC.

Inventor： Wei Zeng ,  Dawei Zhang ,  Seyed Ali Akbar Fakoorian ,  Yushu Zhang ,  Haitong Sun ,  Hong He ,  Chunhai Yao ,  Sigen Ye ,  Chunxuan Ye ,  Weidong Yang ,  Oghenekome Oteri

IPC: H04L5/14

CPC classification number: H04L5/1438 ,  H04L5/1469

Abstract: Methods, systems, and apparatus, including computer programs encoded on computer storage media, for signaling cross-division duplex configurations. One of the methods includes determining, by a first device and for a symbol in a time slot of a cross-division duplex transmission link with a second device, that the first device can use a combination of multiple different symbol types across frequency to communicate with the second device at the symbol using cell-specific configuration data that indicates, for each of multiple symbols across time, various combinations of two or more symbol types from the multiple different symbol types to use to communicate across the respective symbol; and communicating, by the first device and with the second device using the cross-division duplex transmission link, across the symbol in the time slot using a first symbol type for a first bandwidth unit and a second, different symbol type for a second, different bandwidth unit.

公开(公告)号：US11659422B2

公开(公告)日：2023-05-23

申请号：US17337321

申请日：2021-06-02

Applicant: Apple Inc.

Inventor： Yuqin Chen ,  Yushu Zhang ,  Fangli Xu ,  Qiming Li ,  Chunhai Yao ,  Gurunadha Rao Kota ,  Zhibin Wu ,  Haijing Hu ,  Dawei Zhang ,  Panagiotis Botsinis ,  Christian Hofmann ,  Sameh M Eldessoki

IPC: H04W24/08 ,  H04L1/16 ,  H04B7/06 ,  H04W56/00 ,  H04L1/1607

CPC classification number: H04W24/08 ,  H04B7/0626 ,  H04L1/1614 ,  H04W56/001

Abstract: When a user equipment (UE) encounters a radio link failure condition, the UE may transmit a radio link failure report to a network. The report may include information defining the radio link monitoring (RLM) resources of a current RLM configuration. The information may take the form of a resource bitmap or a list of resource identifiers/indices. The network may use the information (and radio resource management measurements) to determine whether the radio link failure occurred due to misconfiguration of RLM resources for the UE. In cases where the network does not provide RLM configuration, the UE may omit the bitmap (or list), or populate the bitmap with all zeros, or populate the bitmap (or list) according to a currently active Transmission Configuration Indication (TCI) state, which is indicated by downlink control information (DCI).

公开(公告)号：US11658769B2

公开(公告)日：2023-05-23

申请号：US17091194

申请日：2020-11-06

Applicant: Apple Inc.

Inventor： Yushu Zhang ,  Chunhai Yao ,  Chunxuan Ye ,  Dawei Zhang ,  Fangli Xu ,  Haijing Hu ,  Haitong Sun ,  Hong He ,  Jie Cui ,  Oghenekome Oteri ,  Wei Zeng ,  Weidong Yang ,  Yang Tang ,  Yuchul Kim ,  Yuqin Chen

IPC: H04L1/00 ,  H04L5/00 ,  H04W76/15

CPC classification number: H04L1/0038 ,  H04L5/0023 ,  H04L5/0092 ,  H04W76/15

Abstract: Embodiments are presented herein of apparatuses, systems, and methods for a user equipment device (UE) and/or cellular network to perform downlink control information (DCI) mode signaling and control resource set (CORESET) selection. A DCI mode may be signaled based on a predefined rule, media access control (MAC) control element (CE), and/or group based beam reporting. One or more CORESETs may be selected based on configuration of an active bandwidth part (BWP), CORESET identifier, higher layer index, periodicity, type of search space, and/or MAC CE.

公开(公告)号：US20230156824A1

公开(公告)日：2023-05-18

申请号：US17441752

申请日：2020-08-06

Applicant: Apple Inc.

Inventor： Chunhai Yao ,  Chunxuan Ye ,  Dawei Zhang ,  Haijing Hu ,  Haitong Sun ,  Hong He ,  Jia Tang ,  Oghenekome Oteri ,  Sigen Ye ,  Wei Zeng ,  Weidong Yang ,  Yushu Zhang ,  Zhibin Wu

IPC: H04W74/08 ,  H04L1/1812

CPC classification number: H04W74/0858 ,  H04L1/1812

Abstract: An evaluating user equipment (UE) includes memory and one or more processors communicatively coupled to the memory. The one or more processor are configured to schedule periodic resources with one or more configured feedback-based collision detection parameters, and perform a periodic transmission to one or more receiving UEs. The one or more processors are also configured to collect negative acknowledgement (NACK) statistics for the periodic transmission according to the configured feedback-based collision detection parameters, and selectively perform corrective action based on the collected NACK statistics and at least one of the configured feedback-based collision detection parameters.