公开(公告)号：US20250132942A1

公开(公告)日：2025-04-24

申请号：US18681511

申请日：2022-08-05

Applicant: GOOGLE LLC

Inventor： Chih-Hsiang Wu

IPC: H04L12/18 ,  H04W68/02 ,  H04W72/30 ,  H04W76/27

Abstract: To manage reception of Multicast and Broadcast Services (MBS) data, a user equipment (UE) receives, from a radio access network (RAN), a paging message including an MBS session identifier (ID), the MBS session ID including a Temporary Mobile Group Identity (TMGI); and initiates reception of MBS in response to the paging message.

公开(公告)号：US20250126674A1

公开(公告)日：2025-04-17

申请号：US18293767

申请日：2022-07-29

Applicant: GOOGLE LLC

Inventor： Chih-Hsiang Wu

IPC: H04W76/27

Abstract: A central unit (CU) of a distributed base station, the distributed base station including the CU and a distributed unit (DU), can implement a method for managing a radio function for communicating with a UE. The method may include determining (1202) to transmit a CU-to-DU message, related to control of data communication with the UE, to the DU, and determining (1204) whether the data communication requires the DU to perform the radio function. The method further includes, based on whether the data communication requires the DU to perform the radio function, determining (1206) whether to include an indication in the CU-to-DU message to enable the radio function at the DU. The method also includes transmitting (1208) the CU-to-DU message to the DU.

公开(公告)号：US12279169B2

公开(公告)日：2025-04-15

申请号：US17599508

申请日：2020-03-28

Applicant: GOOGLE LLC

Inventor： Chih-Hsiang Wu

IPC: H04W36/00

Abstract: A user device operating in dual-mode connectivity with a master node and a secondary node detects a failure of a secondary cell group associated with the secondary node (1104). In response, the user device suspends an secondary cell group transmission (1106). The user device generates a message related to a status of the SCG for transmission to the MN (1108) and transmitting the message to the MN when the SCG transmission is suspended (1110).

公开(公告)号：US12256452B2

公开(公告)日：2025-03-18

申请号：US17627236

申请日：2020-07-09

Applicant: GOOGLE LLC

Inventor： Chih-Hsiang Wu

IPC: H04W76/19 ,  H04L5/00 ,  H04W24/08 ,  H04W28/06 ,  H04W36/08 ,  H04W76/18 ,  H04W76/20 ,  H04W76/27

Abstract: A method, in a user device configured to communicate with a first base station via a radio link, for managing communication of a segmented radio resource control (RRC) message that includes N segments includes transmitting (212) a first M segments of the segmented RRC message to the first base station, M being an integer greater than zero and less than N, detecting (220), by processing hardware of the user device and before transmitting an (M+1)-th segment of the segmented RRC message, a failure of the radio link, and, after detecting the failure of the radio link, transmitting (264) at least a last N−M+1 segments of the segmented RRC message to either the first base station or a second base station.

公开(公告)号：US12238802B2

公开(公告)日：2025-02-25

申请号：US17422944

申请日：2020-09-29

Applicant: GOOGLE LLC

Inventor： Chih-Hsiang Wu ,  Teming Chen

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

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：US12219419B2

公开(公告)日：2025-02-04

申请号：US17749554

申请日：2022-05-20

Applicant: GOOGLE LLC

Inventor： Chih-Hsiang Wu ,  Jing Hsieh

IPC: H04W36/24 ,  H04W24/08 ,  H04W36/08 ,  H04W36/36 ,  H04W74/0833 ,  H04W76/27 ,  H04W76/30

Abstract: A source base station receives, from a candidate base station while a user device is operating in a source cell of the source base station, a first message that indicates a conditional handover configuration providing information for user device operation within a candidate target cell of the candidate base station, but does not indicate a corresponding condition for handing over to the candidate target cell. The source base station generates the corresponding condition for handing over to the candidate target cell, and sends, to the user device, a second message that indicates the conditional handover configuration and the corresponding condition.

公开(公告)号：US20250039871A1

公开(公告)日：2025-01-30

申请号：US18716349

申请日：2023-01-06

Applicant: GOOGLE LLC

Inventor： Chih-Hsiang Wu ,  Jing-Rong Hsieh

IPC: H04W72/1268 ,  H04W76/27

Abstract: A method, implemented by a distributed unit (DU) of a base station that also includes a central unit (CU), of handling small data transmission (SDT) with a user equipment (UE), includes receiving, from the UE while the CE is in an inactive state, a first message including uplink data (304). The uplink data includes control plane or non-control plane information. The method also includes determining, based on a logical channel with which the uplink data is associated, whether to transmit the uplink data to a control plane of the CU (CU-CP) or a user plane of the CU (CU-UP) (306), and transmitting the uplink data to cither the CU-CP (308) or the CU-UP (320) in accordance with the determining.

公开(公告)号：US20250016885A1

公开(公告)日：2025-01-09

申请号：US18701926

申请日：2022-10-18

Applicant: Google LLC

Inventor： Chih-Hsiang Wu

IPC: H04W76/40 ,  H04W76/12

Abstract: A method, implemented in a User Equipment (UE), for receiving Multicast and/or Broadcast services (MBS) data includes performing a Protocol Data Unit (PDU) session establishment procedure with a Core Network (CN) to establish a PDU session to join an MBS session, including receiving, from a Radio Access Network (RAN), at least one first configuration for configuring radio resources for the PDU session; performing an MBS session join procedure with the CN to join the MBS session, including receiving, from the CN, an MBS session identifier and receiving, from the RAN, at least one second configuration for configuring radio resources for the MBS session; receiving, from the CN via the RAN, first MBS data of the MBS session in accordance with the at least one first configuration; and receiving, from the CN via the RAN, second MBS data of the MBS session in accordance with the at least one second configuration.

公开(公告)号：US12185276B2

公开(公告)日：2024-12-31

申请号：US17633470

申请日：2020-08-04

Applicant: GOOGLE LLC

Inventor： Jing Hsieh ,  Chih-Hsiang Wu

IPC: H04W68/02 ,  H04W68/00 ,  H04W76/27

Abstract: A secondary node (SN) for requesting a master node (MN) to page a user equipment (UE) operating in dual connectivity (DC) with the MN and the SN receives, from a core network (CN), downlink traffic for the UE in an inactive state of a protocol for controlling radio resources, the inactive state being associated with a suspended radio connection between the UE and a radio access network (RAN) (802), and transmits, to the MN, a message that causes the MN to initiate RAN paging of the UE (804).

公开(公告)号：US20240422804A1

公开(公告)日：2024-12-19

申请号：US18702568

申请日：2022-10-18

Applicant: GOOGLE LLC

Inventor： Chih-Hsiang Wu

IPC: H04W72/30 ,  H04W76/40 ,  H04W88/08

Abstract: A method for managing transmission of MBS is implemented in a CU of a distributed base station that includes the CU and a DU. The method includes receiving from a core network (CN), a request to configure resources for transmitting downlink (DL) MBS data associated with an MBS session; determining, based at least one of (i) a capability of the DU or (ii) a capability of a UE that joined the MBS session, whether the DU should transmit the MBS data to the UE over at least one of a radio interface using a PTP or a PTM delivery mechanism; and causing the DU to transmit the MBS data in accordance with the determined delivery mechanism.