公开(公告)号：US20240163836A1

公开(公告)日：2024-05-16

申请号：US18417763

申请日：2024-01-19

Applicant: Apple Inc.

Inventor： Alexey KHORYAEV ,  Sergey SOSNIN ,  Gang XIONG ,  Seunghee HAN ,  Sergey PANTELEEV

IPC: H04W64/00 ,  H04L5/00

CPC classification number: H04W64/003 ,  H04L5/0051

Abstract: Systems and methods are provided to determine an estimated location of a user equipment (UE). For instance, a UE can provide a positioning request to a node while the UE is in a radio resource control idle (RRC_IDLE) or inactive (RRC_INACTIVE) state. The positioning request can be implemented in a random access channel (RACH) message A (MsgA). The UE can then receive a positioning response from the node. The positioning response can be implemented in a RACH message B (MsgB).

公开(公告)号：US20220078854A1

公开(公告)日：2022-03-10

申请号：US17419973

申请日：2020-02-12

Applicant: Apple Inc.

Inventor： Gang XIONG ,  Yujian ZHANG ,  Yushu ZHANG ,  Sergey SOSNIN ,  Seau S. LIM

IPC: H04W74/08 ,  H04W74/00 ,  H04W72/14 ,  H04W72/12

Abstract: A method and device are disclosed for performing collision resolution in a two-step random access channel (RACH) process. In such a process, an MsgA PUSCH signal and a grant based PUSCH signal may collide. When such a collision is detected, either the MsgA PUSCH signal or the grant based PUSCh signal are dropped. The other of the two signals is then transmitted. The determination regarding which signal to drop can be based on a set of rules stored in memory.

公开(公告)号：US20220167424A1

公开(公告)日：2022-05-26

申请号：US17441181

申请日：2020-05-04

Applicant: Apple Inc.

Inventor： Yushu ZHANG ,  Gang XIONG ,  Hong HE ,  Sergey SOSNIN

IPC: H04W74/08 ,  H04W52/36 ,  H04W52/16 ,  H04W72/12

Abstract: Techniques are provided for implementing power control in a 2-step random access channel (RACH) procedure, including implementing power control during MsgA transmission of the 2-step RACH procedure. For example, a user equipment (UE) determines a transmission power for a physical uplink shared channel (PUSCH) transmission based on a transmission power of a physical random access channel (PRACH) preamble that is associated with the PUSCH transmission during the 2-step RACH procedure. The UE further performs the 2-step RACH procedure using the determined transmission power of the PUSCH to establish a connection to the wireless network.

公开(公告)号：US20220113365A1

公开(公告)日：2022-04-14

申请号：US17264506

申请日：2019-07-31

Applicant: Apple Inc.

Inventor： Sergey SOSNIN ,  Alexey KHORYAEV ,  Mikhail SHILOV ,  Sergey PANTELEEV

IPC: G01S5/02

Abstract: Methods, systems, and storage media are described for the measurement and reporting of user equipment (UE) positioning in cellular networks. Other embodiments may be described and/or claimed.

公开(公告)号：US20220116089A1

公开(公告)日：2022-04-14

申请号：US17421991

申请日：2020-01-10

Applicant: Apple Inc.

Inventor： Alexey KHORYAEV ,  Sergey SOSNIN ,  Mikhail SHILOV ,  Sergey PANTELEEV ,  Seunghee HAN

IPC: H04B7/06 ,  H04B7/08 ,  H04B7/0426 ,  H04W64/00 ,  H04L5/00

Abstract: A design for reference signals dedicated for positioning measurements in UL and DL directions and a mechanism for Tx/Rx beam pair selection for positioning is disclosed. The design can improve performance of positioning operation in NR communication systems, can improve resource efficiency of positioning operation in NR communication systems, and can reduce the amount of resources needed for PRS transmission, reduce latency and increase the positioning measurement quality.

公开(公告)号：US20220110085A1

公开(公告)日：2022-04-07

申请号：US17422101

申请日：2020-01-10

Applicant: Apple Inc.

Inventor： Alexey KHORYAEV ,  Sergey SOSNIN ,  Gang XIONG ,  Seunghee HAN ,  Sergey PANTELEEV

IPC: H04W64/00 ,  H04L5/00

Abstract: Systems and methods are provided to determine an estimated location of a user equipment (UE). For instance, a UE can provide a positioning request to a node while the UE is in a radio resource control idle (RRC_IDLE) or inactive (RRC_INACTIVE) state. The positioning request can be implemented in a random access channel (RACH) message A (MsgA). The UE can then receive a positioning response from the node. The positioning response can be implemented in a RACH message B (MsgB).

公开(公告)号：US20220225428A1

公开(公告)日：2022-07-14

申请号：US17442506

申请日：2020-06-05

Applicant: Apple Inc.

Inventor： Gang XIONG ,  Seau S. LIM ,  Yushu ZHANG ,  Yujian ZHANG ,  Sergey SOSNIN

IPC: H04W74/08 ,  H04W74/00 ,  H04W72/04 ,  H04W72/14 ,  H04W72/12 ,  H04L1/18 ,  H04L5/00 ,  H04L1/00

Abstract: Systems, devices, and techniques for random access in a wireless communication network are described. A described technique performed by a user equipment (UE) includes transmitting a first message of a two-step random access procedure to a node of a wireless communication network; receiving, in response to the first message, a downlink control information (DCI) message via a physical downlink control channel (PDCCH) and a second message of the two-step random access procedure via a physical downlink shared channel (PDSCH) in accordance with the DCI message; determining, by the UE, a physical uplink control channel (PUCCH) resource based on the second message; and transmitting, by the UE, hybrid automatic repeat request-acknowledgement (HARQ-ACK) feedback for the second message on the determined PUCCH resource.

公开(公告)号：US20220191935A1

公开(公告)日：2022-06-16

申请号：US17439886

申请日：2020-03-26

Applicant: Apple Inc.

Inventor： Gang XIONG ,  Yongjun KWAK ,  Lopamudra KUNDU ,  Yushu ZHANG ,  Sergey SOSNIN

IPC: H04W74/08 ,  H04W16/14

Abstract: Systems and methods are described for a 2-Step Random Access Channel (RACH) for New Radio (NR) with unlicensed operation. The systems and methods include at least, generating, by a user equipment (UE), a MsgA of a random access channel (RACH) procedure associated with the NR network, the MsgA having a physical random access channel (PRACH) occasion and an associated physical uplink shared channel (PUSCH) occasion for transmission during the RACH procedure, and transmitting, by the UE, the MsgA to a base station (gNB) over unlicensed spectrum of the NR network during the RACH procedure.

公开(公告)号：US20220159740A1

公开(公告)日：2022-05-19

申请号：US17441612

申请日：2020-05-01

Applicant: Apple Inc.

Inventor： Gang XIONG ,  Yushu ZHANG ,  Sergey SOSNIN

IPC: H04W74/08 ,  H04W72/12 ,  H04W72/04 ,  H04W56/00 ,  H04L5/00

Abstract: This disclosure describes improving a 4-step RACH procedure by using a 2-step RACH procedure. A UE transmits a PRACH preamble and associated MsgA physical uplink shared channel (PUSCH) on a configured time and frequency resource. After successful detection of the PRACH preamble, and decoding of the MsgA PUSCH, the gNB transmits MsgB in the second step. Generally, a mapping is used between the PRACH preamble and the PUSCH resource unit for 2-step RACH. This disclosure describes the mapping for 2-step RACH.

公开(公告)号：US20220095388A1

公开(公告)日：2022-03-24

申请号：US17420097

申请日：2020-02-17

Applicant: Apple Inc.

Inventor： Sergey SOSNIN ,  Gang XIONG ,  Alexey KHORYAEV ,  Seunghee HAN

IPC: H04W74/08 ,  H04W74/00 ,  H04W72/04

Abstract: An approach is described for a base station (gNB) that includes the following features. The features include transmitting, by the gNB, a PDCCH signal to a user equipment (UE), wherein the PDCCH signal includes an indication of a PDCCH ordered 2-step RACH procedure. The features also include receiving, by the gNB, a first step of the 2-step RACH procedure, wherein the first step includes a PRACH preamble and an associated MsgA physical uplink shared channel (PUSCH) from the UE.