公开(公告)号：US12289773B2

公开(公告)日：2025-04-29

申请号：US17286746

申请日：2020-07-23

Applicant: GOOGLE LLC

Inventor： Chih-Hsiang Wu ,  Kao-Peng Chou

IPC: H04W74/0833 ,  H04L1/1812 ,  H04L5/00 ,  H04W80/02

Abstract: Granting access to a communication channel for several user devices by a base station includes receiving, from at least a first and second user device, at least a first request to access the communication channel and a second request to access the communication channel (1202), the first request including a first random access preamble and a first payload, and the second request including a second random access preamble and a second payload, and transmitting, to at least the first and second user devices, a response message including at least a first control channel resource assignment configuring at least a first control channel resource for the at least the first user device to transmit an acknowledgement of the response message (1208).

公开(公告)号：US20250133535A1

公开(公告)日：2025-04-24

申请号：US18681503

申请日：2022-08-05

Applicant: GOOGLE LLC

Inventor： Chih-Hsiang Wu

IPC: H04W68/00 ,  H04W68/02 ,  H04W88/08

Abstract: A method for paging a UE is implemented in a distributed unit (DU) of a distributed base station. The method includes receiving, by processing hardware from a central unit (CU) of the distributed base station and when the UE is not operating in a connected state of a protocol associated with controlling radio resources, a CU-to-DU message related to the UE and indicating a voice call; and transmitting, by the processing hardware to the UE via a radio interface, a paging message including an indication of the voice call.

公开(公告)号：US20250098028A1

公开(公告)日：2025-03-20

申请号：US18726044

申请日：2023-01-06

Applicant: GOOGLE LLC

Inventor： Chih-Hsiang Wu

IPC: H04W76/40 ,  H04W76/12 ,  H04W76/28

Abstract: A distributed unit (DU) of a distributed base station including a central unit (CU) and the DU can implement a method for configuring a user equipment (UE) to receive multicast and/or broadcast services (MBS). The method may include: receiving (1002), from the CU, a CU-to-DU message identifying an MBS session and requesting that the DU configure resources for the MBS session; and transmitting (1004), to the UE in response to receiving the CU-to-DU message, configuration parameters for receiving the MBS session.

公开(公告)号：US20250089119A1

公开(公告)日：2025-03-13

申请号：US18727532

申请日：2023-01-10

Applicant: GOOGLE LLC

Inventor： Chih-Hsiang Wu

IPC: H04W76/20 ,  H04W48/02 ,  H04W74/0833 ,  H04W76/19 ,  H04W76/30

Abstract: A UE performs a method of managing access control procedures for accessing a radio access network (RAN) during small data transmission (SDT) with the RAN. The method includes operating (702) in an inactive state with the RAN, determining (704) to make an access attempt for transmitting a non-SDT packet, and, when the UE is in SDT with the RAN, performing (710) an access control check for the access attempt and either (i) barring (718) the access attempt when the access control check does not indicate that the access attempt is allowed, or (ii) transmitting (708) a first radio resource control (RRC) message to the RAN when the access control check indicates that the access attempt is allowed.

公开(公告)号：US20250048366A1

公开(公告)日：2025-02-06

申请号：US18716381

申请日：2023-01-06

Applicant: GOOGLE LLC

Inventor： Chih-Hsiang Wu

IPC: H04W72/21 ,  H04W28/02 ,  H04W88/08

Abstract: A method, for transferring uplink data that includes control-plane or non-control plane information to a central unit (CU), is implemented by a distributed unit (DU) of a base station. The method includes receiving, from a user equipment (UE) in an inactive state, the uplink data via a logical channel, determining, based on the logical channel, whether to transmit the uplink data via a transport network layer protocol stack or in an uplink radio resource control (RRC) message transfer message, and transmitting the uplink data to the CU in accordance with the determining.

公开(公告)号：US20240430980A1

公开(公告)日：2024-12-26

申请号：US18703051

申请日：2022-10-21

Applicant: GOOGLE LLC

Inventor： Chih-Hsiang Wu ,  Teming Chen

IPC: H04W76/40 ,  H04W76/27

Abstract: In a method of managing multicast and/or broadcast services (MBS) communications after a state transition, a UE receives MBS data from a RAN using MBS configuration parameters while the UE is in a connected state with the RAN. The CE transitions from the connected state to an idle state or an inactive state. While the UE is in the idle state or the inactive state, and based on whether the MBS configuration parameters are for receiving a broadcast MBS session or a non-broadcast MBS session, the UE either continues or does not continue, respectively, to receive MBS data using the MBS configuration parameters.

公开(公告)号：US12167488B2

公开(公告)日：2024-12-10

申请号：US17627775

申请日：2020-07-09

Applicant: GOOGLE LLC

Inventor： Chih-Hsiang Wu

IPC: H04W76/18 ,  H04L5/00 ,  H04W24/08 ,  H04W28/06 ,  H04W76/19 ,  H04W76/20 ,  H04W76/27

Abstract: A method, in a user device configured to communicate with a base station, for managing communication of a segmented radio resource control (RRC) message that includes N segments includes transmitting (222) a first M segments of the segmented RRC message to the base station, M being an integer greater than zero and less than N, detecting (230 or 330), by processing hardware of the user device and before transmitting an (M+1)-th segment of the segmented RRC message, an intervening event, that triggers an RRC procedure, and, after detecting the intervening event, transmitting (260) the (M+1)-th segment through an N-th segment of the segmented RRC message to the base station before the RRC procedure has completed.

公开(公告)号：US20240334266A1

公开(公告)日：2024-10-03

申请号：US18739815

申请日：2024-06-11

Applicant: GOOGLE LLC

Inventor： Chih-Hsiang Wu ,  Teming Chen

IPC: H04W36/00 ,  H04W36/30 ,  H04W74/0833 ,  H04W76/15 ,  H04W76/19

CPC classification number: H04W36/0069 ,  H04W36/0079 ,  H04W36/305 ,  H04W74/0841 ,  H04W76/15 ,  H04W76/19

Abstract: A UE communicating in DC with an MN and an SN detects a master cell group (MCG) failure associated with the MN. In response to detecting the MCG failure, the UE performs an MCG recovery procedure by transmitting an MCG failure information message to the SN, receiving an MCG failure recovery message from the SN, and transmitting an MCG failure recovery complete message to the MN.

公开(公告)号：US20240324039A1

公开(公告)日：2024-09-26

申请号：US18271634

申请日：2022-01-12

Applicant: GOOGLE LLC

Inventor： Chih-Hsiang Wu

IPC: H04W76/15 ,  H04W76/30

CPC classification number: H04W76/15 ,  H04W76/30

Abstract: A distributed unit (DU) operating in a radio access network (RAN) for establishing a connection with a centralized unit (CU) operating in the RAN, (i) transmits (1802), to a first CU, a first interface message to establish a first connection between the DU and the first CU, and (ii) transmits (1804), to a second CU via the first CU, a second interface message to establish a second connection between the DU and the second CU via the first CU, to maintain the first connection and the second connection concurrently.

公开(公告)号：US11991623B2

公开(公告)日：2024-05-21

申请号：US17285850

申请日：2019-10-15

Applicant: GOOGLE LLC

Inventor： Chih-Hsiang Wu

IPC: H04W48/18 ,  H04W48/12 ,  H04W76/20

CPC classification number: H04W48/18 ,  H04W48/12 ,  H04W76/20

Abstract: A method in a user device that supports an air interface for connecting to core networks (CNs) of different types includes receiving system information from a first base station or a second base station (1102), determining, based on the received system information, at least two CN types of respective CNs to which the first base station is connected (1104), choosing a CN type from among the at least two CN types (1106), and performing a mobility management procedure with a CN of the chosen CN type via the first base station (1108).