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公开(公告)号:WO2023044785A1
公开(公告)日:2023-03-30
申请号:PCT/CN2021/120409
申请日:2021-09-24
Applicant: APPLE INC.
Inventor: XU, Fangli , JOSE, Bobby , ZHANG, Dawei , HU, Haijing , SHIKARI, Murtaza, A. , PALLE VENKATA, Naveen Kumar R. , NUGGEHALLI, Pavan , ROSSBACH, Ralf , VANGALA, Sarma, V. , GUO, Shu , YANG, Weidong
IPC: H04W76/20
Abstract: Provided is a method of a transmitter in a wireless communication system, that includes: generating protocol data units (PDU) in layer 2 (L2); performing security protection on a control PDU of the PDUs in L2 to obtain a protected control PDU for the control PDU, wherein the control PDU in a sublayer lower than service data adaptation protocol (SDAP); and transmitting the protected control PDU.
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公开(公告)号:WO2023044636A1
公开(公告)日:2023-03-30
申请号:PCT/CN2021/119764
申请日:2021-09-23
Applicant: APPLE INC. , XU, Fangli
Inventor: WU, Zhibin , DHANAPAL, Muthukumaran , LOVLEKAR, Srirang A. , XU, Fangli , PALLE VENKATA, Naveen Kumar R. , CHEN, Yuqin , GURUMOORTHY, Sethuraman , HU, Haijing , ZHANG, Dawei
IPC: H04W76/19
Abstract: This disclosure relates to techniques for quickly recovering from radio link failure in a wireless communication system. A wireless device may establish a wireless link with a cell. The wireless device may detect radio link failure for the wireless link. The wireless device may attempt to re-establish the wireless link using a previously provided wireless link configuration. If the cell accepts the attempt re-establish the wireless link using the previously provided wireless link configuration, the wireless link may be re-established in accordance with the previously provided wireless link configuration.
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3.
公开(公告)号:WO2023028940A1
公开(公告)日:2023-03-09
申请号:PCT/CN2021/116196
申请日:2021-09-02
Applicant: APPLE INC. , XU, Fangli
Inventor: NUGGEHALLI, Pavan , XU, Fangli , HU, Haijing , ROSSBACH, Ralf , VENKATARAMAN, Vijay
IPC: H04W28/02
Abstract: A base station (BS) may receive, from a network node, one or more data packets including one or more reflective quality of service (QoS) indicator (RQI) markings. The base station may then determine, based on a value of the one or more RQI markings, one or more active uplink (UL) QoS rules associated with a user equipment (UE). The base station may further determine, based on at least one of one or more timers, the one or more active UL QoS rules, and status information received from the UE, to include or refrain from including the one or more RQI markings in a transmission of the one or more data packets to the UE. Accordingly, in response to the determining that the RQI markings should be included, the base station may then transmit the one or more packets including the RQI markings to the UE.
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公开(公告)号:WO2023010489A1
公开(公告)日:2023-02-09
申请号:PCT/CN2021/111055
申请日:2021-08-05
Applicant: APPLE INC. , HU, Haijing
Inventor: VANGALA, Sarma V , SIROTKIN, Alexander , YE, Chunxuan , ZHANG, Dawei , XU, Fangli , PALLE VENKATA, Naveen Kumar R , NUGGEHALLI, Pavan , ROSSBACH, Ralf , GURUMOORTHY, Sethuraman , CHEN, Yuqin , WU, Zhibin
IPC: H04L1/18
Abstract: Techniques, described herein, include solutions for managing hybrid automatic repeat request (HARQ) processes and communications for non-terrestrial networks (NTNs) (e.g., a wireless communication network that includes a satellite network component). A user equipment (UE) may connect to an NTN and determine hybrid automatic repeat request (HARQ) capabilities regarding NTNs. The UE may also communicate a HARQ disablement message to the NTN and communicate with NTN without HARQ procedures. The HARQ disablement message may provide the HARQ disablement capabilities of the UE and/or be a request for the network to disable HARQ. The HARQ disablement message may include a radio resource control (RRC) reconfiguration message and may address HARQ disablement per logical channel identifier (LCID) or dedicated radio bearer (DRB).
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公开(公告)号:WO2023010460A1
公开(公告)日:2023-02-09
申请号:PCT/CN2021/111023
申请日:2021-08-05
Applicant: APPLE INC. , CUI, Jie
Inventor: ZHANG, Dawei , XU, Fangli , HE, Hong , NIU, Huaning , RAGHAVAN, Manasa , LI, Qiming , FAKOORIAN, Seyed Ali Akbar , CHEN, Xiang , TANG, Yang
Abstract: Apparatus and method are provided for a user equipment (UE) to perform measurement operations for a handover procedure including target NR Primary Secondary Cell (PSCell) change or addition. The measurements of a target PSCell are performed in accordance with a synchronization signal/physical broadcast channel (SS/PBCH) block measurement time configuration (SMTC) included in a measurement object received from a base station (BS). A source primary cell (PCell) is used for reference timing of the SMTC if the measurement object is configured by the source PCell on same frequency and subcarrier spacing of the target PSCell. A source PSCell is used for reference timing of the SMTC if the measurement object is configured by the source PSCell on same frequency and subcarrier spacing of the target PSCell.
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公开(公告)号:WO2023010336A1
公开(公告)日:2023-02-09
申请号:PCT/CN2021/110567
申请日:2021-08-04
Applicant: APPLE INC.
Inventor: NUGGEHALLI, Pavan , SIROTKIN, Alexander , XU, Fangli , HU, Haijing , PALLE VENKATA, Naveen Kumar R , ROSSBACH, Ralf , VANGALA, Sarma V , GURUMOORTHY, Sethuraman , CHEN, Yuqin , WU, Zhibin
IPC: H04W72/04
Abstract: The functions of user equipment (UE), radio access network (RAN) devices, and core network (CN) devices in circumstances where a UE is expected to experience discontinuous coverage are described herein. A UE may send a CN a non-access stratum (NAS) message including a release request indicating that a UE is leaving coverage and assistance information. The CN may interrupt paging of the UE and resume the paging according to the assistance information. A UE may enter a low power usage mode upon leaving coverage, and may use one or more timers to determine when to check for coverage and send a mobility update message corresponding to the low power usage mode. A base station may receive, from a UE, a radio resource control (RRC) message comprising a release request and assistance information, send an RRC release message to the UE in response, and forward the assistance information to the CN.
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公开(公告)号:WO2023272436A1
公开(公告)日:2023-01-05
申请号:PCT/CN2021/102762
申请日:2021-06-28
Applicant: APPLE INC.
Inventor: VANGALA, Sarma V. , MANITHARA VAMANAN, Sudeep , XU, Fangli , HU, Haijing , KISS, Krisztian , AGNEL, Mona , PALLE VENKATA, Naveen Kumar R , ROSSBACH, Ralf , GURUMOORTHY, Sethuraman , CHEN, Yuqin , WU, Zhibin
IPC: H04W8/00
Abstract: Systems and methods for using integrated access and backhaul (IAB) nodes configured to provide multi-access edge computing (MEC) functionality are disclosed herein. An IAB node includes a distributed unit (DU) having a local application instance of a MEC-enabled application. The local application instance is configured for communication with a first user equipment (UE) connected to the IAB node. A mobile termination functionality (MT) of the IAB node uses a packet data convergence protocol (PDCP) layer to transport data of the local application instance between the MT and an IAB donor. Further, data of the local application instance is transported between the UE and the IAB node via one of a variety of methods, including the use of a second PDCP layer at the DU (and optionally the use of service data adaptation protocol (SDAP) layers at each of the DU and the MT), and/or via sidelink.
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8.
公开(公告)号:WO2022267032A1
公开(公告)日:2022-12-29
申请号:PCT/CN2021/102465
申请日:2021-06-25
Applicant: APPLE INC. , XU, Fangli
Inventor: ROSSBACH, Ralf , XU, Fangli , HU, Haijing , NARASIMHA, Murali , VANGALA, Sarma V. , YANG, Weidong
IPC: H04W28/02
Abstract: A user equipment (UE) may establish a connection with a network for transmission of a plurality of data bursts further comprising a plurality of data segments. The UE may transmit, to the network, a first data segment corresponding to a first quality of service flow identifier (QFI) associated with a first quality of service (QoS) flow and a second data segment corresponding to a second QFI associated with a second QoS flow. The UE may be configured to map one or more data segments to one or more QFIs based on at least one of a slice type, a frame type, a modulo operation, and a sequence number. The plurality of data bursts may be transmitted according to at least one of one or more configured grants (CGs), one or more dynamic grants (DGs), and one or more instances of the one or more CGs or one or more DGs.
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9.
公开(公告)号:WO2022266994A1
公开(公告)日:2022-12-29
申请号:PCT/CN2021/102336
申请日:2021-06-25
Applicant: APPLE INC. , XU, Fangli
Inventor: ROSSBACH, Ralf , XU, Fangli , VANGALA, Sarma V. , HU, Haijing , YANG, Weidong , IYER, Lakshmi , ROESSEL, Sabine
Abstract: An application layer in a device, a service data adaptation protocol (SDAP) layer in the device, and/or a media access control (MAC) layer in the device may determine that wireless communication resources allocated to the device need to be adjusted. The determination may be in response to detecting that a quality of the wireless connection of the device has deteriorated, or it may be based on advance knowledge of information pertaining to an application layer payload in the device. In response to the determination the device may transmit, in a MAC Control Element (MAC CE) to a base station, a request for an adjustment of the allocated wireless communication resources. The adjustment may lead to a temporary boost of resources for a limited period of time or to a persistent update of the allocated wireless communication resources. To allow better scheduling of multiple QoS flows mapped to the same DRB and better selection of data when constructing a MAC Packet Data Unit (PDU), a mapping between QoS flows and LCHs may also be provided to the MAC layer.
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公开(公告)号:WO2022236583A1
公开(公告)日:2022-11-17
申请号:PCT/CN2021/092785
申请日:2021-05-10
Applicant: APPLE INC. , XU, Fangli
Inventor: PALLE VENKATA, Naveen Kumar R. , ROSSBACH, Ralf , ZHANG, Dawei , HU, Haijing , XU, Fangli , CHEN, Yuqin , WU, Zhibin , VANGALA, Sarma V. , NIMMALA, Srinivasan , LOVLEKAR, Srirang A. , GURUMOORTHY, Sethuraman
IPC: H04W76/15
Abstract: To accommodate a mix of high frequency carriers and lower frequency carriers, a protocol stack may include a radio link control (RLC) entity that allows configuration of status reporting control parameters on per carrier, or per subcarrier spacing. Alternatively, a protocol stack may include two RLC entities, one for handling high frequency carriers, and another for handling lower frequency carriers. High frequency carriers and lower frequency carriers may be distinguished based on a frequency threshold. Furthermore, a user equipment may transmit to the network an indication of its L2 buffer size. The network may configure the UE and/or control scheduling, to ensure the UE's L2 buffer does not overrun. Alternatively, the UE may indicate that it can support a percentage of a maximum buffer size. The network may configure the UE and/or control scheduling so that the UE's buffer occupancy does not exceed the percentage.
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