公开(公告)号：US20220394666A1

公开(公告)日：2022-12-08

申请号：US17755728

申请日：2019-11-28

Applicant: Apple Inc.

Inventor： Jishan GAO ,  Lijie ZHANG ,  Haijing HU ,  Zhiwei WANG ,  Qiang MIAO

IPC: H04W68/02 ,  H04W60/00 ,  H04W68/00 ,  H04W74/08

Abstract: A user equipment (UE) includes a first subscriber identification module (SIM) and a second SIM. The UE is configured to establish a first cellular network connection based on, at least, the first SIM and a second cellular network connection based on, at least, the second SIM. The UE detects a collision between i) multiple paging occasions or ii) multiple paging frames. The UE then initiates a procedure for updating a paging occasion for the first cellular network connection. The UE monitors for a page over the first cellular network connection during the paging occasion.

公开(公告)号：US20240129001A1

公开(公告)日：2024-04-18

申请号：US18544802

申请日：2023-12-19

Applicant: Apple Inc.

Inventor： Lijie ZHANG ,  Zhiwei WANG ,  Lakshmi N. KAVURI

IPC: H04B7/0413 ,  H04B7/06 ,  H04B17/336 ,  H04W72/21 ,  H04W72/54

CPC classification number: H04B7/0413 ,  H04B7/0632 ,  H04B17/336 ,  H04W72/21 ,  H04W72/54

Abstract: Systems, methods, and apparatuses disclosed herein can compensate for imbalances between multiple transport streams of an uplink (UL)-multiple-input and multiple-output (MIMO) transmission. These systems, methods, and apparatuses can adjust one or more signal metrics of multiple recovered transport streams of the UL-MIMO transmission that are received in the presence of imbalances between the multiple transport streams of the UL-MIMO transmission. As an example, these systems, methods, and apparatuses can inject noise into one or more of the multiple recovered transport streams to adjust the one or more signal metrics of the multiple recovered transmission streams to lessen the imbalances between the multiple transmission streams. As another example, these systems, methods, and apparatuses can attenuate and/or amplify transmit powers of one or more the multiple transport streams for the UL-MIMO transmission to adjust the one or more signal metrics of the multiple recovered transmission streams to lessen the imbalances between the multiple transmission streams

公开(公告)号：US20230036406A1

公开(公告)日：2023-02-02

申请号：US17807021

申请日：2022-06-15

Applicant: Apple Inc.

Inventor： Lijie ZHANG ,  Lele CUI ,  Aiman J. SANG ,  Yu WU ,  Yun GAO ,  Ying ZHANG ,  Zhiwei WANG ,  Qiang MIAO

IPC: H04L5/00 ,  H04W72/02 ,  H04W72/04 ,  H04W72/08 ,  H04B17/318 ,  H04B17/336

Abstract: Aspects are described for a user equipment (UE) comprising a transceiver configured to enable wireless communication with a base station; and a processor communicatively coupled to the transceiver. The processor is configured to receive a sounding reference signal (SRS) resource configuration from the base station, wherein the SRS resource configuration indicates at least a first SRS resource and a second SRS resource. The processor is further configured to transmit a first SRS via the first SRS resource to the base station using a first antenna coupled to the transceiver and transmit a second SRS via the second SRS resource to the base station using a second antenna coupled to the transceiver. The processor is further configured to receive an SRS resource indicator (SRI) from the base station based on at least one of the transmission of the first SRS or the second SRS; select the first antenna based on the SRI indicating the first SRS resource; and transmit uplink data to the base station using the first antenna.

公开(公告)号：US20240097807A1

公开(公告)日：2024-03-21

申请号：US18470601

申请日：2023-09-20

Applicant: Apple Inc.

Inventor： Dongzhou YANG ,  Lijie ZHANG ,  Kai ZHANG ,  Zhiwei WANG ,  Qiang MIAO ,  Lele CUI

IPC: H04B17/309

CPC classification number: H04B17/347

Abstract: Some aspects relate to apparatuses and methods for calculating an uplink pathloss in a wireless communication system. A user equipment (UE) can be configured to perform operations for calculating the uplink pathloss. The operations can include determining a transmission power of a physical uplink shared channel (PUSCH) transmission for a UE, TxpPUSCH, where the PUSCH transmission is from the UE to a base station. The operations can further include determining a receiving power of a sounding reference signal (SRS) by the base station, Rxpsrs; and further calculating the uplink pathloss based on the transmission power of the PUSCH transmission TxpPUSCH and the receiving power of the SRS Rxpsrs.

公开(公告)号：US20230354394A1

公开(公告)日：2023-11-02

申请号：US18011413

申请日：2021-12-22

Applicant: Apple Inc.

Inventor： Lijie ZHANG ,  Qiang MIAO ,  Zhiwei WANG

IPC: H04W72/54 ,  H04W72/1263 ,  H04W76/28

CPC classification number: H04W72/54 ,  H04W72/1263 ,  H04W76/28

Abstract: Disclosed are methods, systems, and computer-readable medium to perform operations including: receiving, from an application layer of a user equipment (UE), a first uplink packet at a first time; identifying a latency between the first time and a first instance of a periodic transmission resource during which the first uplink packet is transmitted by the UE; and providing information indicative of the latency to the application layer of the UE.