公开(公告)号：WO2020257308A1

公开(公告)日：2020-12-24

申请号：PCT/US2020/038175

申请日：2020-06-17

Applicant: APPLE INC.

Inventor： KOLEKAR, Abhijeet ,  SHRESTHA, Bharat

IPC: H04W12/12 ,  H04W36/08

Abstract: Systems, devices, and techniques for handover and false base station detection in a wireless communication network are described. A described technique performed by a user equipment (UE) includes receiving, from a source base station of a wireless network, a handover command to indicate a handover to a target base station for communication in the wireless network; receiving information from the target base station; determining whether the target base station is a legitimate base station of the wireless network based on the information from the target base station and handover information included in the handover command; and performing a handover based on the handover command and a determination that the target base station is the legitimate base station.

公开(公告)号：WO2020252374A1

公开(公告)日：2020-12-17

申请号：PCT/US2020/037578

申请日：2020-06-12

Applicant: APPLE INC.

Inventor： SHRESTHA, Bharat ,  KOLEKAR, Abhijeet

IPC: H04W12/00 ,  H04W76/19 ,  H04W4/70

Abstract: Exemplary embodiments include a UE that determines that access stratum (AS) security has not been activated and mobility is handled by a 5G core network. The UE then encodes a radio resource control (RRC) connection re-establishment request for transmission based on the determination. The RRC connection re-establishment request may include an indicator of a UE identity or a single bit value to indicate a re-establishment cause. The UE may also determine a truncated ng-5G-S-TSMI of the UE, wherein the RRC connection re-establishment request includes the truncated ng-5G-S-TSMI.

公开(公告)号：WO2020168302A1

公开(公告)日：2020-08-20

申请号：PCT/US2020/018445

申请日：2020-02-14

Applicant: APPLE INC.

Inventor： YE, Qiaoyang ,  SHRESTHA, Bharat ,  CHATTERJEE, Debdeep ,  MOROZOV, Gregory

IPC: H04W24/10 ,  H04W24/00

Abstract: An approach is described for a user equipment (UE) for enhanced machine-type communication (eMTC) in a connected mode, where the UE includes processor circuitry and radio front end circuitry. The processor circuitry is configured to perform a downlink (DL) quality measurement, and to generate a DL quality report based on the DL quality measurement, wherein a definition of the DL quality report matches a definition of quality report in Msg3. The radio front end circuitry is configured to transmit the DL quality report to a next generation base station (gNB).

公开(公告)号：WO2020154622A1

公开(公告)日：2020-07-30

申请号：PCT/US2020/014994

申请日：2020-01-24

Applicant: APPLE INC.

Inventor： SHRESTHA, Bharat ,  GUO, Yi ,  LIM, Seau S. ,  MARTINEZ TARRADELL, Marta ,  JAIN, Puneet ,  KEDALAGUDDE, Meghashree Dattatri

IPC: H04W68/12 ,  H04W48/18

Abstract: Some embodiments of this disclosure include systems, apparatuses, methods, and computer-readable media for use in a wireless network for operating eMTC (enhanced Machine Type Communication) user equipment (UE) and/or NB-IoT UEs when connected to a 5G Core Network (5GCN). For example, some embodiments are directed to a user equipment (UE). The UE includes processor circuitry and radio front circuitry. The processor circuitry can be configured to receive, using the radio front end circuitry and from a Non-Access Stratum layer (NAS) of a cell, an indication to use a 5G Core Network (5GCN) for the cell. The processor circuitry can be further configured to transmit, using the radio front end, a Radio Resource Control (RRC) connection request in response to the indication to use the 5GCN.

公开(公告)号：WO2020172656A1

公开(公告)日：2020-08-27

申请号：PCT/US2020/019459

申请日：2020-02-24

Applicant: APPLE INC.

Inventor： GUO, Yi ,  PALAT, Sudeep ,  HEO, Youn Hyoung ,  SHRESTHA, Bharat

IPC: H04W40/36 ,  H04W36/02 ,  H04L12/801

Abstract: Some embodiments of this disclosure include systems, apparatuses, methods, and computer-readable media for the reduction of handover interruptions. Some embodiments include a user equipment (UE) that supports simultaneous connectivity with a source 5G Node B (gNB) and a target gNB during a handover. Some embodiments include the UE receiving source path data packets from the source gNB and target path data packets from a target gNB. The UE performs a first reorder of the one or more source path data packets and the one or more target path data packets by sequence number (SN), and the UE performs header decompression on the reordered source path data packets, separately from the reordered target path data packets. After the header decompressions the UE performs a second reorder of the source path data packets and the target path data packets together by SN, and discards any duplicate data packets based on SNs.

公开(公告)号：WO2020198234A1

公开(公告)日：2020-10-01

申请号：PCT/US2020/024482

申请日：2020-03-24

Applicant: APPLE INC.

Inventor： SHRESTHA, Bharat ,  HAN, Jaemin ,  KOLEKAR, Abhijeet

IPC: H04W12/10 ,  H04W80/02

Abstract: This disclosure describes methods, systems, and devices for uplink data integrity protection in a communication system including a radio access network (RAN) serving a user equipment (UE) operating in an Early Data Transmission (EDT) configuration. In one example, a method involves generating a hash marker based on a packet data convergence protocol (PDCP) control protocol data unit (PDU) or service data unit (SDU). The method also involves transmitting a message including the hash marker to the RAN.

公开(公告)号：WO2020167657A1

公开(公告)日：2020-08-20

申请号：PCT/US2020/017492

申请日：2020-02-10

Applicant: APPLE INC.

Inventor： SHRESTHA, Bharat ,  LIM, Seau S. ,  MARTINEZ TARRADELL, Marta

IPC: H04L1/18 ,  H04L5/00 ,  H04W72/04

Abstract: Some embodiments of this disclosure include apparatuses and methods for facilitating a transmission, retransmission, and hybrid automatic repeat request (HARQ) process using preconfigured uplink resources (PUR) in IDLE mode. In some embodiments, user equipment (UE) may establish a first PUR and a second PUR to use in IDLE mode. The UE may transmit uplink data using the first PUR using a HARQ process. The UE may start a PUR retransmission timer and monitor a control channel for an acknowledgement message. The UE may identify an expiration of the PUR retransmission timer prior to receiving the acknowledgement message, and in response, may retransmit the uplink data using the second PUR.

公开(公告)号：WO2020167979A1

公开(公告)日：2020-08-20

申请号：PCT/US2020/017968

申请日：2020-02-12

Applicant: APPLE INC.

Inventor： YE, Qiaoyang ,  SHRESTHA, Bharat ,  CHATTERJEE, Debdeep ,  MOROZOV, Gregory

IPC: H04W24/10 ,  H04W74/08

Abstract: Some embodiments of this disclosure include systems, apparatuses, methods, and computer-readable media for use in a wireless network for designing quality report for enhanced Machine Type Communication (EMTC) and Narrowband Internet of Things (NB-IOT). For example, some embodiments are directed to a user equipment (UE) including radio front end circuitry and processor circuitry coupled to the radio front end circuitry. The processor circuitry can be configured to determine a downlink (DL) quality metric based on a DL quality metric type and identify a message 3 (Msg3) signal based on the determined DL quality metric. The processor circuitry can further be configured to transmit, using the radio front end circuitry, the identified Msg3 signal to a base station.

公开(公告)号：WO2020139509A1

公开(公告)日：2020-07-02

申请号：PCT/US2019/063577

申请日：2019-11-27

Applicant: APPLE INC.

Inventor： SHRESTHA, Bharat ,  HAN, Jaemin ,  KOLEKAR, Abhijeet Ashok

IPC: H04W12/10 ,  H04L9/06 ,  H04L12/801 ,  H04L29/06

Abstract: Packet protection is described. Data of a group of packets is concatenated with a security key and a sequence number of the packet. A hash mark of the concatenated data is calculated and sent with data or control information in a packet. If each packet has reserved bits, at least some of the packets each has data, a least a portion of the hash mark, and a header having: a first bit that indicates if the hash mark is present, and a second bit that indicates if the packet is used to determine the hash mark. Otherwise, a separate control packet is sent that contains the hash mark, a first sequence number of the group of packets, and a PDU type indicating that the control packet is an integrity protection packet for the group of PDCP packets.

公开(公告)号：EP4135233A1

公开(公告)日：2023-02-15

申请号：EP22199260.5

申请日：2018-03-20

Applicant: Apple Inc.

Inventor： CHATTERJEE, Debdeep ,  YE, Qiaoyang ,  XIONG, Gang ,  SHRESTHA, Bharat ,  TALARICO, Salvatore

IPC: H04L1/08 ,  H04L1/18 ,  H04L5/00

Abstract: Systems and methods of early termination of uplink data transmissions for a UE are described. The UE transmits capacity information that indicates that the UE supports use of an ETS. The ETS indicates successful reception by the eNB of the uplink data prior to an end of a scheduled transmission period to transmit repeated instances of the data. The UE receives a schedule for repeated transmissions of the data that is based on a coverage level of the UE, and then transmits sets of one or more repetitions. After the transmission, the UE monitors a predetermined resource whether the ETS is present or whether the ETS indicates an ACK. If the ETS indicates successful reception, the UE terminates transmission of the remaining repetitions of the data and enters a sleep mode or transmits other uplink data.