公开(公告)号：US20240422803A1

公开(公告)日：2024-12-19

申请号：US18702562

申请日：2022-10-18

Applicant: GOOGLE LLC

Inventor： Chih-Hsiang Wu

IPC: H04W72/30 ,  H04W76/40

Abstract: A method for managing transmission of multicast and/or broadcast services (MBS) is implemented in a central unit (CU) of a distributed base station that includes the CU and a distributed unit (DU). The method includes receiving, from a core network (CN), a request to configure CN-to-BS resources for transmitting downlink (DL) MBS data associated with an MBS session, from the CN for multiple user equipment units (UEs) via the distributed base station (602); obtaining a configuration for a downlink (DL) tunnel for transmitting the DL MBS data from the CU to the DU (606); and communicating the DL MBS data between the CN and the DU using the CN-to-BS resources and the configuration for the DL tunnel (614, 616).

公开(公告)号：US12101845B2

公开(公告)日：2024-09-24

申请号：US17647330

申请日：2022-01-06

Applicant: Google LLC

Inventor： Chih-Hsiang Wu ,  Ching-Jung Hsieh

IPC: H04W76/32 ,  H04B7/06 ,  H04L5/00 ,  H04W8/08 ,  H04W36/08 ,  H04W48/20 ,  H04W68/00 ,  H04W72/04 ,  H04W72/044 ,  H04W72/542 ,  H04W74/0833 ,  H04W76/10 ,  H04W76/27

CPC classification number: H04W76/32 ,  H04B7/0617 ,  H04B7/0632 ,  H04L5/0048 ,  H04W8/08 ,  H04W36/08 ,  H04W48/20 ,  H04W68/005 ,  H04W72/04 ,  H04W72/046 ,  H04W72/542 ,  H04W74/0833 ,  H04W76/10 ,  H04W76/27

Abstract: This document describes techniques and apparatuses for handling radio resource control (RRC) cell group configuration. In implementations, a base station (120) receives a first radio resource control message that requests a connection procedure between a user equipment (110) and the base station (e.g., 325, 425, 1325), such as a radio resource control resume request or a radio resource setup request. In response to receiving the first radio resource control message, the base station (120) generates a second radio resource control message that includes a cell-group-configuration information element that excludes a reconfiguration-with-sync information element (e.g., 330, 430, 1330). The base station (120) then transmits the second radio resource control message to the user equipment (110) (e.g., 335, 435, 1345). Afterward, the base station (120) receives, from the user equipment (110), a third radio resource control message that indicates the connection procedure is complete (e.g., 340, 440, 1350).

公开(公告)号：US12096304B2

公开(公告)日：2024-09-17

申请号：US17635373

申请日：2020-08-11

Applicant: GOOGLE LLC

Inventor： Chih-Hsiang Wu ,  Teming Chen

IPC: H04W36/32 ,  H04W36/08 ,  H04W76/20 ,  H04W76/30

CPC classification number: H04W36/32 ,  H04W36/08 ,  H04W76/20 ,  H04W76/30

Abstract: A user equipment (UE) for handling mobility between base stations receives, from a source base station, a command to hand over to a target base station, while the UE operates in an mobility management (MM)-connected mode and communicates with the source base station via a radio bearer (1002), determines that the source base station and the target base station operate according to different radio access technologies (RATs) and connect to a same core network (CN) (1004), and in response to an indication that a handover completed in accordance with the command, continues to operate in the MM-connected mode (1006).

公开(公告)号：US12082097B2

公开(公告)日：2024-09-03

申请号：US17279045

申请日：2019-09-23

Applicant: Google LLC

Inventor： Chih-Hsiang Wu ,  Teming Chen

IPC: H04W48/08

CPC classification number: H04W48/08

Abstract: This document describes methods and systems for common search space configuration and system information acquisition. As part of the methods and systems, a base station (120) wirelessly communicating with a user equipment (110) that is in an engaged mode determines (402) to configure a common search space through which the user equipment (110) can receive a system information block that is other than a system information block type 1 or a master information block. The base station (120) transmits a first message (404) that includes a set of common search space configuration parameters for the user equipment (110) to receive the other system information block. The base station (120) transmits (406), in accordance with the set of common search space configuration parameters, a second message that includes the other system information block.

公开(公告)号：US20240284538A1

公开(公告)日：2024-08-22

申请号：US18289759

申请日：2022-05-06

Applicant: GOOGLE LLC

Inventor： Chih-Hsiang Wu ,  Ching-Jung Hsieh

IPC: H04W76/20 ,  H04W76/12 ,  H04W76/30 ,  H04W80/02

CPC classification number: H04W76/20 ,  H04W76/12 ,  H04W76/30 ,  H04W80/02

Abstract: A central unit control plane (CU-CP), a central unit user plane (CU-UP), and a distributed unit (DU) of distributed base station can implement a method for managing uplink or downlink early data transmission from or to a user equipment (UE) when the UE operates in an inactive state associated with a protocol for controlling radio resources. The method includes: determining the association of logical channel identifier(s) (LCID(s)), radio bearer identifier(s) (RB ID(s)), and tunnel endpoint identifier(s) (TEID(s)) for communicating data between the UE and the CU-UP without transitioning the UE to a connected state associated with the protocol.

公开(公告)号：US12041491B2

公开(公告)日：2024-07-16

申请号：US17615090

申请日：2020-05-28

Applicant: GOOGLE LLC

Inventor： Jing Hsieh ,  Chih-Hsiang Wu

IPC: H04W36/00 ,  H04L1/1607 ,  H04W80/02

CPC classification number: H04W36/0033 ,  H04L1/1621 ,  H04W36/0022 ,  H04W36/0066 ,  H04W36/0069 ,  H04W80/02

Abstract: One or more processors, operating in a source base station and/or a target base station, determines a change in the termination point from the source base station to the target base station for a radio bearer with a current count value according to data unit sequencing. The one or more processors determine (1806) whether a user equipment (UE) changes the data unit sequencing as a result of the change in the termination point. In a first instance, the one or more processors cause the target base station to apply (1810) the current count value to the radio bearer, in response to determining that the data unit sequencing does not change. In a second instance, the one or more processors cause the target base station to apply (1820) a new count value different from the current count value to the radio bearer, in response to determining that the data unit sequencing changes.

公开(公告)号：US20240237102A9

公开(公告)日：2024-07-11

申请号：US18279051

申请日：2022-02-25

Applicant: GOOGLE LLC

Inventor： Chih-Hsiang Wu

IPC: H04W76/15 ,  H04W76/30

CPC classification number: H04W76/15 ,  H04W76/30

Abstract: A network node of a radio access network (RAN), communicating with a user equipment (UE) in dual connectivity (DC) with a master node (MN) and a secondary node (SN), can implement a method for managing deactivation of a secondary cell group (SCG). The method includes detecting (1802) that a condition for deactivating the SCG is satisfied. The method further includes determining (1804) whether the UE supports deactivating the SCG, and causing (1806) the SN to deactivate or to release the SCG at the SN based on the determining.

公开(公告)号：US20240155726A1

公开(公告)日：2024-05-09

申请号：US18280552

申请日：2022-03-31

Applicant: GOOGLE LLC

Inventor： Chih-Hsiang Wu

IPC: H04W76/27 ,  H04W74/00

CPC classification number: H04W76/27 ,  H04W74/004

Abstract: A DU and/or a CU of a distributed base station implement the techniques of this disclosure to support early data transmission from a UE operating in an inactive or idle state. In some embodiments, the DU receives (304) a MAC PDU from the UE when the radio connection between the UE and the DU is not active (302). The DU provides (308) the data packet included in the MAC PDU to the CU while preventing (306) the CU from initiating a procedure for resuming the radio connection. In this manner, the base station avoids an unnecessary transition of the UE to the connected state. The CU may then proceed with releasing (312) radio resources or otherwise determining to reactivate the radio connection.

公开(公告)号：US20240080718A1

公开(公告)日：2024-03-07

申请号：US18261668

申请日：2022-01-14

Applicant: GOOGLE LLC

Inventor： Chih-Hsiang Wu

IPC: H04W36/00

CPC classification number: H04W36/0022 ,  H04W36/0016

Abstract: To provide Single Radio Voice Call Continuity (SRVCC) to a session of a packet-data service, a first base station communicates messages associated with the session between a UE and a packet-data network, using a first RAT (902); determines a capability of the UE with respect to the second RAT (906); and transmits, to a second base station, handover preparation information for the UE, including causing the second base station to not apply the capability of the UE with respect to UTRA (910).

公开(公告)号：US20240057216A1

公开(公告)日：2024-02-15

申请号：US18268213

申请日：2021-12-10

Applicant: GOOGLE LLC

Inventor： Chih-Hsiang Wu

IPC: H04W76/34 ,  H04W36/00 ,  H04W36/36

CPC classification number: H04W76/34 ,  H04W36/0069 ,  H04W36/362

Abstract: A UE, communicating in dual connectivity (DC) with a radio access network (RAN) via a master node (MN) and a secondary node (SN), can implement a method for managing a conditional configuration during deactivation of a secondary cell group (SCG). The method can be implemented by processing hardware and includes receiving (1102), from the RAN, the conditional configuration related to a DC procedure and a condition to be satisfied before the UE applies the conditional configuration. The method also includes deactivating (1104) the SCG at the UE and processing (1106) the conditional configuration in view of the deactivating, including by preventing the UE from applying the conditional configuration.