公开(公告)号：US11477796B2

公开(公告)日：2022-10-18

申请号：US16782465

申请日：2020-02-05

Applicant: Apple Inc.

Inventor： Srirang A. Lovlekar ,  Murtaza A. Shikari ,  Sethuraman Gurumoorthy ,  Fangli Xu ,  Yuqin Chen ,  Haijing Hu ,  Srinivasan Nimmala ,  Longda Xing ,  Dawei Zhang ,  Sree Ram Kodali

IPC: H04W72/08 ,  H04W88/06 ,  H04W24/10 ,  H04W36/00 ,  H04W76/15 ,  H04W72/04 ,  H04W36/14

Abstract: Various radio resource management techniques may be implemented to reduce in-device coexistence issues and/or interference between a Uu link established between a mobile device (first UE) and a base station (first NB), and a sidelink/PC5 link established between the first UE and another mobile device (second UE), where the second UE is served by a different base station (second NB). The first UE may receive, from the first NB, measurement configuration information that enables/configures the first UE to report to the NB any indication(s) of issues caused by communications between the first UE and the second UE over the PC5 link affecting communications between the first UE and the first NB over the Uu link, and/or communications over the Uu link affecting communications over the PC5 link. The first NB may analyze the feedback from the first UE and may implement mitigation measures to reduce/eliminate any interference and/or in-device-coexistence issues.

公开(公告)号：US20220322078A1

公开(公告)日：2022-10-06

申请号：US17438996

申请日：2020-10-15

Applicant: Apple Inc.

Inventor： Fangli Xu ,  Dawei Zhang ,  Deepankar Bhattacharjee ,  Haijing Hu ,  Lele Cui ,  Lijie Zhang ,  Qiang Miao ,  Zhiwei Wang

IPC: H04W8/30 ,  H04W76/15 ,  H04W76/19

Abstract: This disclosure relates to techniques for performing wireless communications using a split bearer. A user equipment device may perform a recovery operation for a lost uplink packet. The recovery operation may be in response to an indication from the network or may be initiated autonomously by the device.

公开(公告)号：US20220312489A1

公开(公告)日：2022-09-29

申请号：US17437367

申请日：2020-08-06

Applicant: Apple Inc.

Inventor： Sarma V Vangala ,  Tarik Tabet ,  Chunxuan Ye ,  Dawei Zhang ,  Fangli Xu ,  Haijing Hu ,  Murtaza A Shikari ,  Naveen Kumar R Palle Venkata ,  Ralf Rossbach ,  Sreevalsan Vallath ,  Srinivasan Nimmala ,  Wei Zeng

IPC: H04W74/08 ,  H04W72/14 ,  H04W28/02 ,  H04W72/12

Abstract: This disclosure relates to techniques for reducing latency in a high-propagation-delay wireless communication system. A user equipment device (UE) may transmit to a base station a random access initiation message, having a characteristic that is configured to indicate to the base station a requested size of a subsequent uplink grant to be provided by the base station for transmission of uplink data by the UE. For example, the characteristic may include a predetermined preamble included in the random access initiation message, such that a requested grant size is indicated by which preamble the UE selects from a plurality of possible preambles. As another example, the characteristic may include which RACH occasion is selected by the UE to transmit the random access initiation message. In response, the base station may allocate resources for use by the UE based on the characteristic.

公开(公告)号：US20220312233A1

公开(公告)日：2022-09-29

申请号：US17437403

申请日：2020-09-15

Applicant: Apple Inc.

Inventor： Yushu Zhang ,  Dawei Zhang ,  Fangli Xu ,  Haijing Hu ,  Haitong Sun ,  Huaning Niu ,  Jie Cui ,  Manasa Raghavan ,  Wei Zeng ,  Weidong Yang ,  Yakun Sun ,  Yang Tang

IPC: H04W24/08 ,  H04W8/24 ,  H04B7/06

Abstract: Apparatuses, systems, and methods for beam indication latency reduction via symbol level beam sweeping capability reporting. A wireless device may transmit, to a base station, a report associated with symbol level beam sweeping. The wire wireless device may receive, from the base station, a symbol level beam sweeping configuration. The symbol level beam sweeping configuration may be based, at least in part, on the report. The wireless device may perform synchronization signal block (SSB) measurements according to the report and the symbol level beam sweeping configuration.

公开(公告)号：US20220304063A1

公开(公告)日：2022-09-22

申请号：US17437819

申请日：2020-08-05

Applicant: Apple Inc

Inventor： Sarma V. Vangala ,  Tarik Tabet ,  Chunxuan Ye ,  Dawei Zhang ,  Fangli Xu ,  Haijing Hu Hu ,  Murtaza A Shikari ,  Naveen Kumar R Palle Venkata ,  Rafael L Rivera-Barreto ,  Ralf Rossbach ,  Sreevalsan Vallath ,  Srinivasan Nimmala ,  Wei Zeng ,  Yuqin Chen ,  Zhibin Wu

IPC: H04W74/08 ,  H04W56/00

Abstract: A user equipment (UE) device may perform random access to a base station in the context where propagation delay between the base station and the UE device is large. The UE device randomly selects a random access preamble from an available set of preambles. The UE device selects a time slot for transmission of the random access preamble based on a configured correspondence between allowable time slots and subsets of the available set. The UE device transmits the random access preamble to a base station in the selected time slot, with timing advance to compensate for a common delay. Thus, the base station, knowing the configured correspondence, is able to determine the time slot in which the random access preamble was transmitted. The UE device receives a random access response that has been addressed with a Random Access Radio Network Temporary Identifier (RA-RNTI).

公开(公告)号：US20220303942A1

公开(公告)日：2022-09-22

申请号：US17442081

申请日：2020-07-21

Applicant: Apple Inc.

Inventor： Fangli Xu ,  Dawei Zhang ,  Haijing Hu ,  Yuqin Chen ,  Longda Xing ,  Srinivasan Nimmala ,  Srirang A. Lovlekar ,  Sethuraman Gurumoorthy ,  Murtaza A. Shikari ,  Sree Ram Kodali

IPC: H04W68/00 ,  H04W76/20 ,  H04W76/10

Abstract: This disclosure relates to techniques for performing paging forwarding for remote wireless devices in a wireless communication system. A relay wireless device and a remote wireless device may establish a relay link. The relay wireless device may provide an indication of the relay link between the relay wireless device and the remote wireless device to a cellular base station. The relay wireless device may receive paging information for the remote wireless device from the cellular base station. The relay wireless device may provide the paging information to the remote wireless device via the relay link between the relay wireless device and the remote wireless device.

公开(公告)号：US20220303858A1

公开(公告)日：2022-09-22

申请号：US17593425

申请日：2020-05-15

Applicant: APPLE INC.

Inventor： Yushu Zhang ,  Chunhai Yao ,  Dawei Zhang ,  Fangli Xu ,  Haijing Hu ,  Haitong Sun ,  Wei Zeng

IPC: H04W36/30 ,  H04W36/00

Abstract: Performing a UE-triggered lower layer-based handover may include, based on measurements associated with both a source gNB and a target gNB, determining that a UE-triggered handover utilizing layer 1 or layer 2 is to be performed. First uplink resources configured by the source gNB for a dedicated scheduling request may be determined. The dedicated scheduling request may be generated at the UE to request second uplink resources from the gNB for a physical uplink shared channel (PUSCH) a handover request in a media access control (MAC) control element (CE). The handover request carried by the MAC CE for the source gNB may be generated. In response to the handover request, a handover command from the source gNB associated with performing a handover procedure from the source gNB to the target gNB may be processed.

公开(公告)号：US20220303820A1

公开(公告)日：2022-09-22

申请号：US17442104

申请日：2020-07-24

Applicant: Apple Inc.

Inventor： Fangli Xu ,  Dawei Zhang ,  Haijing Hu ,  Yuqin Chen ,  Longda Xing ,  Srinivasan Nimmala ,  Srirang A. Lovlekar ,  Sethuraman Gurumoorthy ,  Murtaza A. Shikari ,  Sree Ram Kodali

IPC: H04W28/02 ,  H04W40/22 ,  H04L47/24 ,  H04L47/34

Abstract: This disclosure relates to techniques for providing bearer configuration information for relay communication by a relay wireless device in communication with one or more remote wireless devices in a wireless communication system. A network may provide bearer configuration information to the wireless devices to establish one or more bearers for data forwarding. Based on the bearer configuration information, the relay wireless device may forward data to/from the remote wireless device(s) using the bearer(s).

公开(公告)号：US20220279583A1

公开(公告)日：2022-09-01

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 ,  H04W74/00 ,  H04W72/12

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：US20220264404A1

公开(公告)日：2022-08-18

申请号：US17437803

申请日：2021-01-12

Applicant: Apple Inc.

Inventor： Fangli Xu ,  Dawei Zhang ,  Haijing Hu ,  Naveen Kumar R. Palle Venkata ,  Sethuraman Gurumoorthy ,  Srirang A. Lovlekar ,  Yuqin Chen ,  Zhibin Wu

IPC: H04W36/08 ,  H04W74/08 ,  H04W74/04

Abstract: Aspects are presented herein of apparatuses, systems, and methods for secondary cell group (SCG) addition. A wireless device may establish communication with a first base station that is comprised a master cell group (MCG). The wireless device may receive signaling from the first base station configuring a second base station in a secondary cell group (SCG). The wireless device may establish communication with the second base station based on the signaling received from the first base station. At a first time, the wireless device may set the second base station in a deactivated state based on the signaling from the first base station configuring the second base station or establishing communication with the second base station. At a later time, the wireless device may set the second base station in an activated state and communicate with the first base station and the second base station.