公开(公告)号：US20220295458A1

公开(公告)日：2022-09-15

申请号：US17826811

申请日：2022-05-27

Applicant: Apple Inc.

Inventor： Yujian Zhang ,  Jeongho Jeon ,  Youn Hyoung Heo ,  Candy Yiu ,  Bharat Shrestha

IPC: H04W72/04 ,  H04L5/00 ,  H04W72/12

Abstract: 5G methods and architectures to determine active SCells and their bandwidth parts (BWP) used in carrier aggregation (CA) are disclosed in which activating a BWP for an active SCell is performed initially according to a default value provided in initial radio resource control (RRC) messaging. After initialization, SCells and the SCell BWPs used by the user equipment (UE) are activated by RRC messaging, downlink control information (DCI) or dedicated medium access control (MAC) control elements (MAC CEs) with the initial BWP used for an activated SCell being a default value provided during initialization.

公开(公告)号：US11438954B2

公开(公告)日：2022-09-06

申请号：US16465398

申请日：2018-05-05

Applicant: Apple Inc.

Inventor： Sudeep Palat ,  Seau Lim ,  Yujian Zhang ,  Richard Burbidge ,  Youn Hyoung Heo ,  Pingping Zong

IPC: H04W72/12 ,  H04L5/00 ,  H04W76/27 ,  H04W76/15

Abstract: Techniques for unifying split bearers at user equipment (UE) in an Evolved-Universal Terrestrial Radio Access-New Radio (E-ULTRA NR) dual connectivity (EN-DC) environment are described. According to various such techniques, a radio resource control (RRC) message can include an encapsulated configuration for a secondary cell group (SCG). Packet data convergence protocol (PDCP) configurations for MN or SN split bearers can be included in the master cell group (MCG) configuration in the RRC message or in the encapsulated SCG configuration. In some examples, an RRC message can include an encapsulated SCG configuration and an encapsulated PDCP configuration, where the encapsulated PDCP configuration including PDCP configuration information for the MN or SN split bearer. Other embodiments are described and claimed.

公开(公告)号：US20220279526A1

公开(公告)日：2022-09-01

申请号：US17743648

申请日：2022-05-13

Applicant: Apple Inc.

Inventor： Yujian Zhang ,  Youn Hyoung Heo

IPC: H04W72/10 ,  H04W76/18 ,  H04W76/10 ,  H04W76/19 ,  H04W76/15 ,  H04W28/08 ,  H04W36/00 ,  H04W4/90 ,  H04W24/10 ,  H04W48/06 ,  H04W74/00 ,  H04W72/04 ,  H04W48/08 ,  H04W48/18 ,  H04W28/02 ,  H04W48/12 ,  H04W8/00 ,  H04W52/34 ,  H04W56/00 ,  H04B17/318 ,  H04W74/08 ,  H04W72/08 ,  H04W8/06 ,  H04W8/18 ,  H04W60/00 ,  H04W60/02 ,  H04J3/16 ,  H04L5/00 ,  H04W4/02 ,  H04W4/60 ,  H04W76/14 ,  H04W4/80

Abstract: Embodiments of a User Equipment (UE) to support dual-connectivity with a Master Evolved Node-B (MeNB) and a Secondary eNB (SeNB) are disclosed herein. The UE may receive downlink traffic packets from the MeNB and from the SeNB as part of a split data radio bearer (DRB). At least a portion of control functionality for the split DRB may be performed at each of the MeNB and the SeNB. The UE may receive an uplink eNB indicator for an uplink eNB to which the UE is to transmit uplink traffic packets as part of the split DRB. Based at least partly on the uplink eNB indicator, the UE may transmit uplink traffic packets to the uplink eNB as part of the split DRB. The uplink eNB may be selected from a group that includes the MeNB and the SeNB.

公开(公告)号：US11343706B2

公开(公告)日：2022-05-24

申请号：US16932743

申请日：2020-07-18

Applicant: Apple Inc.

Inventor： Alexandre Saso Stojanovski ,  Jerome Parron ,  Sudeep K. Palat ,  Yujian Zhang

IPC: H04W28/02 ,  H04L69/22 ,  H04W28/06 ,  H04W76/20 ,  H04W76/10 ,  H04L67/14 ,  H04L67/146 ,  H04L47/32

Abstract: Systems and methods of segregating a SDF of a PDU session are described. The UE transmits a NAS message to the network. The NAS message indicates the SDF, the desired QoS, and a segregation indication that requests that the network establish a separate QoS flow for the SDF even if an existing QoS flow is able to support the specific QoS. The SF decides whether or not to establish the separate QoS flow and updates filters in the UPF as well as providing a response to the UE containing a similar indication. The UE modifies resources related to the PDU session based on the response. The QoS is indicated as a 5QI and GBR or as a QFI of an existing QoS Flow on which the SDF is to be added if the separate QoS is not established. The QFI is in an unencrypted SDAP header of the NAS message.

公开(公告)号：US20220159482A1

公开(公告)日：2022-05-19

申请号：US17436125

申请日：2020-03-26

Applicant: Apple Inc.

Inventor： Yushu Zhang ,  Gang Xiong ,  Yujian Zhang ,  Seau S. Lim

IPC: H04W24/04 ,  H04W74/08

Abstract: Techniques discussed herein can facilitate beam failure recovery (BFR) for a Secondary Cell (SCell) or Primary SCell (PSCell). One example embodiment comprises an apparatus configured to be employed in a User Equipment (UE), comprising: one or more processors configured to: generate a Physical Random Access Channel (PRACH) associated with a beam failure recovery request (BFRQ); generate a Physical Uplink Shared Channel (PUSCH) message associated with the BFRQ, wherein the PUSCH message comprises at least one Medium Access Control (MAC) Control Element (CE) that comprises one or more of an index associated with a cell for which beam failure was detected or an index associated with a new beam; and process a Physical Downlink Shared Channel (PDSCH) as a random access response (RAR) associated with the PRACH and the PUSCH message.

公开(公告)号：US11234144B2

公开(公告)日：2022-01-25

申请号：US16462644

申请日：2018-05-04

Applicant: APPLE INC.

Inventor： Yongjun Kwak ,  Gang Xiong ,  Hong He ,  Yujian Zhang ,  Debdeep Chatterjee ,  Honglei Miao ,  Bharat Shrestha

IPC: H04W24/08 ,  H04L5/00 ,  H04W76/28 ,  H04W72/12 ,  H04W84/04 ,  H04W88/02

Abstract: Technology for a user equipment (UE), operable for monitoring a physical downlink control channel (PDCCH) is disclosed. The UE can monitor a downlink (DL) control channel for DL control information (DCI) at a predetermined monitoring occasion, wherein the predetermined monitoring occasion has a periodicity of P slots or P symbols with an offset Os. The UE can monitor a downlink (DL) control channel for DL control information (DCI) at a predetermined monitoring occasion, wherein Os has San offset with respect to a first slot in subframe number zero (SFN #0). The UE can monitor a downlink (DL) control channel for DL control information (DCI) at a predetermined monitoring occasion, wherein P is a positive integer greater than zero.

公开(公告)号：US20210385709A1

公开(公告)日：2021-12-09

申请号：US17288394

申请日：2019-10-24

Applicant: Apple Inc.

Inventor： Candy Yiu ,  Yujian Zhang ,  Yi Guo ,  Sudeep Palat

IPC: H04W36/02 ,  H04L29/06 ,  H04W36/00 ,  H04W12/10 ,  H04W12/037

Abstract: Systems, methods, and devices are provided to: perform packet data convergence protocol (PDCP) deciphering of the packets to store deciphered packets in a common buffer; perform PDCP reordering of the deciphered packets in the common buffer to generated a stream or reordered packets; perform robust header compression (ROHC) decompression on the stream of reordered packets; and determine, based on a packet indication, to reset the ROHC decompression, wherein the packet indication comprises a single bit in a PDCP header set to indicate a start of ROHC reset based on a path switch during a handover from a source cell to a target cell.

公开(公告)号：US11122647B2

公开(公告)日：2021-09-14

申请号：US16519699

申请日：2019-07-23

Applicant: APPLE INC.

Inventor： Youn Hyoung Heo ,  Yujian Zhang

IPC: H04W76/28 ,  H04W76/15 ,  H04W52/54 ,  H04B7/26 ,  H04W52/02 ,  H04W72/04 ,  H04L1/18 ,  H04W28/02 ,  H04W24/08 ,  H04W72/12 ,  H04W28/06 ,  H04W28/18 ,  H04W52/14 ,  H04W52/36 ,  H04L5/00 ,  H04W92/20 ,  H04W36/00 ,  H04W88/02 ,  H04W88/08

Abstract: Embodiments of user equipment (UE) and methods for enhanced discontinuous reception (DRX) operations for inter eNB carrier aggregation (CA) in an LTE network are generally described herein. In some embodiments, a UE is configured to be served by multiple serving cells. The first set of the serving cells may be associated with a first eNB and a second set of serving cells may be associated with a second eNB. In these embodiments, DRX operations may be performed independently in multiple serving cells belonging to the different eNBs. Other embodiments for enhanced DRX operations are also described.

公开(公告)号：US20210266779A1

公开(公告)日：2021-08-26

申请号：US17315952

申请日：2021-05-10

Applicant: Apple Inc.

Inventor： Jaemin Han ,  Yujian Zhang ,  Sudeep Palat ,  Alexander Sirotkin

IPC: H04W28/02 ,  H04W28/04

Abstract: Systems and methods of providing feedback when a specific PDU is successfully delivered or transmitted are described. The node hosting PDCP entity indicates triggering of a DDDS frame from the remote corresponding node. Rather than immediately triggering transmission of a DDDS frame, the node hosting PDCP entity indicates triggering based on successful delivery of a PDU having a specific SN, as long as in-sequence delivery or transmission of PDUs up to the specific SN was successful. The DDDS frame is transmitted once the corresponding node determines that the PDU having the SN was successfully delivered or transmitted. After reporting by the DDDS frame, the QoS flow associated with the PDUs is remapped from a source DRB to a target DRB.

公开(公告)号：US11025376B2

公开(公告)日：2021-06-01

申请号：US15574765

申请日：2015-12-15

Applicant: Apple Inc.

Inventor： Gang Xiong ,  Pingping Zong ,  Yujian Zhang ,  Mo-Han Fong ,  Jong-Kae Fwu

IPC: H04L5/00 ,  H04W72/04 ,  H04W4/70 ,  H04W72/00 ,  H04L29/08 ,  H04W88/02

Abstract: Disclosed herein are apparatuses, systems, and methods using or implementing dynamic resource allocation (DRA) of resources for machine-type communication (MTC), as a secondary partition within a system bandwidth. Allocations outside the secondary partition are configured as a primary partition for other than MTC. Apparatuses may perform MTC communications within the secondary partition when DRA configuration information includes allocation information for the secondary partition and the apparatus is configured for MTC. Otherwise, if the apparatus is other than MTC, the apparatus may refrain from performing communications in the secondary partition. Other embodiments are described.