公开(公告)号：US20220312327A1

公开(公告)日：2022-09-29

申请号：US17593661

申请日：2020-07-23

Applicant: Apple Inc.

Inventor： Fangli XU ,  Chunhai YAO ,  Clive E. RODGERS ,  Dawei ZHANG ,  Haijing HU ,  Haitong SUN ,  Longda XING ,  Murtaza A. SHIKARI ,  Sarma V. VANGALA ,  Sethuraman GURUMOORTHY ,  Srirang A. LOVLEKAR ,  Wei ZENG ,  Yuchul KIM ,  Yuqin CHEN ,  Yushu ZHANG ,  Zhibin WU

IPC: H04W52/02 ,  H04W68/00 ,  H04W56/00

Abstract: A base station is configured to transmit wake-up signals to a user equipment to wake-up the UE to receive a page from the base station. The base station transmits one or more synchronization signals, wherein the synchronization signals correspond to a wake-up signal (WUS) that is to be transmitted to a user equipment (UE) operating in a paging discontinuous reception (DRX) cycle, wherein the paging DRX cycle includes a paging occasion (PO) and transmits the WUS to the UE during a WUS occasion, wherein the WUS indicates whether the UE is to utilize an active mode or a sleep mode during the PO.

公开(公告)号：US20220312298A1

公开(公告)日：2022-09-29

申请号：US17593504

申请日：2020-08-06

Applicant: Apple Inc.

Inventor： Naveen Kumar R. PALLE VENKATA ,  Dawei ZHANG ,  Haijing HU ,  Hong HE ,  Sarma V. VANGALA ,  Sudeep Manithara VAMANAN ,  Wei ZENG ,  Yuqin CHEN

IPC: H04W48/10 ,  H04W74/08 ,  H04W8/24

Abstract: A base station may restrict access by a user equipment (UE). The base station broadcasts access restrictions to one or more UE within a cell coverage area of the base station, wherein the access restrictions include one or more predetermined criteria that must be satisfied for a UE to be allowed to camp on the base station. The base station performs a random access channel (RACH) procedure to allow the UE to camp on the base station when the UE satisfies the one or more predetermined criteria.

公开(公告)号：US20220086642A1

公开(公告)日：2022-03-17

申请号：US17455000

申请日：2021-11-15

Applicant: Apple Inc.

Inventor： Xiangying YANG ,  Shu GUO ,  Lijia ZHANG ,  Qian SUN ,  Huarui LIANG ,  Fangli XU ,  Yuqin CHEN ,  Haijing HU ,  Dawei ZHANG ,  Hao DUO ,  Lanpeng CHEN

IPC: H04W12/106 ,  H04W72/04 ,  H04L9/32 ,  H04W74/00 ,  H04W12/069 ,  H04W12/0433

Abstract: Techniques for identity-based message integrity protection and verification between a user equipment (UE) and a wireless network entity, include use of signatures derived from identity-based keys. To protect against attacks from rogue network entities before activation of a security context with a network entity, the UE verifies integrity of messages by checking a signature using an identity-based public key PKID derived by the UE based on (i) an identity value (ID) of the network entity and (ii) a separate public key PKPKG of a private key generator (PKG) server. The network entity generates signatures for messages using an identity-based private key SKID obtained from the PKG server, which generates the identity-based private key SKID using (i) the ID value of the network entity and (ii) a private key SKPKG that is known only by the PKG server and corresponds to the public key PKPKG.

公开(公告)号：US20250016647A1

公开(公告)日：2025-01-09

申请号：US18710675

申请日：2021-11-25

Applicant: Apple Inc.

Inventor： Fangli XU ,  Alexander SIROTKIN ,  Dawei ZHANG ,  Haijing HU ,  Naveen Kumar R PALLE VENKATA ,  Pavan NUGGEHALLI ,  Ralf ROSSBACH ,  Sarma V VANGALA ,  Sethuraman GURUMOORTHY ,  Srirang A LOVLEKAR ,  Yuqin CHEN ,  Zhibin WU

IPC: H04W36/36 ,  H04W36/00 ,  H04W72/11 ,  H04W74/0833

Abstract: A user equipment (UE) is configured to receive a handover command from a source cell, wherein the UE is configured to exchange data with the source cell after the reception of the handover command, perform downlink synchronization acquisition with a target cell while the UE is configured to exchange data with the source cell and transmit an uplink signal to the target cell, wherein the UE stops exchanging data with the source cell after transmitting the uplink signal to the target cell.

公开(公告)号：US20250016633A1

公开(公告)日：2025-01-09

申请号：US18710694

申请日：2021-11-26

Applicant: Apple Inc.

Inventor： Naveen Kumar R PALLE VENKATA ,  Alexander SIROTKIN ,  Fangli XU ,  Haijing HU ,  Pavan NUGGEHALLI ,  Ralf ROSSBACH ,  Sarma V VANGALA ,  Sethuraman GURUMOORTHY ,  Yuqin CHEN ,  Zhibin WU

IPC: H04W36/00 ,  H04W72/231 ,  H04W76/30

Abstract: A user equipment (UE) is configured to activate a simultaneous communication functionality with a first cell and a second cell, wherein the first cell is configured as a serving cell and the second cell is configured as an assisting cell, determine that a serving cell switch is to be performed, wherein the serving cell switch comprises the second cell being reconfigured as the assisting cell and the first cell being reconfigured as the assisting cell, receive, after the serving cell switch, a message from the second cell indicating that the simultaneous communication functionality is to be deactivated and release the first cell in response to the message.

公开(公告)号：US20240373209A1

公开(公告)日：2024-11-07

申请号：US18776941

申请日：2024-07-18

Applicant: Apple Inc.

Inventor： Naveen Kumar R. PALLE VENKATA ,  Dawei ZHANG ,  Haijing HU ,  Hong HE ,  Sarma V. VANGALA ,  Sudeep Manithara VAMANAN ,  Wei ZENG ,  Yuqin CHEN

IPC: H04W8/24 ,  H04W48/10 ,  H04W74/0833

Abstract: A user equipment (UE) may camp on a base station of a network. The UE receives, from the base station of a wireless network, a broadcast including access restrictions, wherein the access restrictions include one or more predetermined criteria that must be satisfied to camp on the base station. The UE then determines whether the UE satisfies the one or more predetermined criteria.

公开(公告)号：US20240205789A1

公开(公告)日：2024-06-20

申请号：US17906121

申请日：2021-09-24

Applicant: Apple Inc.

Inventor： Zhibin WU ,  Alexander SIROTKIN ,  Fangli XU ,  Haijing HU ,  Naveen Kumar R PALLE VENKATA ,  Pavan NUGGEHALLI ,  Ralf ROSSBACH ,  Sarma V VANGALA ,  Sethuraman GURUMOORTHY ,  Yuqin CHEN

IPC: H04W40/12 ,  H04W8/22 ,  H04W40/24 ,  H04W74/0833

CPC classification number: H04W40/12 ,  H04W8/22 ,  H04W40/248 ,  H04W74/0833

Abstract: Embodiments of the present disclosure relate to multi-path operation. According to embodiments of the present disclosure, a measurement report is transmitted to a base station on a first path between the UE and the base station, wherein the measurement report indicates channel quality information on one or more potential paths between the UE and the base station. A path addition command is then received from the base station, wherein the path addition command indicates the UE to add a path from one or more potential paths as a second path. The second path between the UE and the base station is then established based on the path addition command.

公开(公告)号：US20240154834A1

公开(公告)日：2024-05-09

申请号：US17755740

申请日：2021-05-10

Applicant: Apple Inc.

Inventor： Fangli XU ,  Dawei ZHANG ,  Haijing HU ,  Naveen Kumar R. PALLE VENKATA ,  Ralf ROSSBACH ,  Sarma V. VANGALA ,  Sethuraman GURUMOORTHY ,  Srirang A. LOVLEKAR ,  Yuqin CHEN ,  Zhibin WU

IPC: H04L12/18 ,  H04W76/19

CPC classification number: H04L12/189 ,  H04L12/1868 ,  H04W76/19

Abstract: A user equipment (UE) is configured to deactivate/activate a point-to-multipoint (PTM) link of a multicast radio bearer (MRB). The UE receives, from a base station of a wireless network, a multicast radio bearer (MRB) configuration, wherein the MRB includes configuration of a split MRB including a point to multipoint (PTM) link and a point to point (PTP) link, deactivates or activates the PTM link based on the MRB configuration, reestablishes a radio link control (RLC) associated with the PTM link and recovers a packet data convergence protocol (PDCP).

公开(公告)号：US20240080804A1

公开(公告)日：2024-03-07

申请号：US18261559

申请日：2021-01-14

Applicant: Apple Inc.

Inventor： Sethuraman GURUMOORTHY ,  Yuqin CHEN ,  Adesh KUMAR ,  Fangli XU ,  Haijing HU ,  Naveen Kumar R. PALLE VENKATA ,  Sarma V VANGALA ,  Srirang A LOVLEKAR ,  Zhibin WU

IPC: H04W68/12 ,  H04W76/34

CPC classification number: H04W68/12 ,  H04W76/34 ,  H04W88/06

Abstract: A multi-universal subscriber identity module (MUSIM) user equipment (UE) is configured to operate in an Radio Resource Control (RRC) inactive state with a first network associated with the first SIM, operate in an RRC connected state with a second network associated with the second SIM, receive a page from the first network, determine that a priority of at least one operation being performed between the UE and the second network is higher than a priority of the page and send a BUSY indication to the first network in response to the page.

公开(公告)号：US20240032102A1

公开(公告)日：2024-01-25

申请号：US17441150

申请日：2021-07-23

Applicant: Apple Inc.

Inventor： Fangli XU ,  Yuqin CHEN ,  Yushu ZHANG ,  Chunhai YAO ,  Haijing HU ,  Wei ZENG ,  Dawei ZHANG

IPC: H04W74/08

CPC classification number: H04W74/0833

Abstract: Some aspects of this disclosure relate to apparatuses and methods for implementing unified RACH for multiple features. For example, some aspects of this disclosure relate to a method including determining, by a user equipment (UE), a feature to be indicated at an initial access of the UE to a base station and determining whether the UE and the base station support feature specific random access (RA) procedure for the feature. The method further includes determining whether a condition for the feature is satisfied in response to determining that both the UE and the base station support the feature specific RA procedure for the feature. In response to determining that the condition is satisfied, the method includes selecting a feature specific Random Access Channel (RACH) resource and perform a 4-step RA procedure or a 2-step RA procedure based on the selected feature specific RACH resource.