公开(公告)号：US20220150774A1

公开(公告)日：2022-05-12

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：US20220141914A1

公开(公告)日：2022-05-05

申请号：US17431072

申请日：2020-02-13

Applicant: GOOGLE LLC

Inventor： Chih-Hsiang Wu

IPC: H04W76/25 ,  H04W76/27 ,  H04W76/19

Abstract: To resume a connection with a base station, a user equipment (UE) communicates messages with the base station in accordance with a format that corresponds to a first radio access technology (RAT), using a radio connection over a radio interface that conforms to a second RAT (702). The UE suspends the radio connection (704) and, subsequently to the suspending, transmits to the base station an indication that the radio connection has been resumed, in accordance with the format that corresponds to the first RAT (708).

公开(公告)号：US20220110048A1

公开(公告)日：2022-04-07

申请号：US17279045

申请日：2019-09-23

Applicant: Google LLC

Inventor： Chih-Hsiang Wu ,  Teming Chen

IPC: 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：US11246182B2

公开(公告)日：2022-02-08

申请号：US16645717

申请日：2019-10-03

Applicant: Google LLC

Inventor： Chih-Hsiang Wu ,  Ching-Jung Hsieh

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

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：US20220014959A1

公开(公告)日：2022-01-13

申请号：US17294385

申请日：2019-11-15

Applicant: GOOGLE LLC

Inventor： Chih-Hsiang Wu ,  Kao-Peng Chou

IPC: H04W28/02 ,  H04W76/30 ,  H04W76/19 ,  H04W56/00 ,  H04W36/08

Abstract: To reduce latency in uplink communication, a user device transmits first application data in an uplink direction, while the UE is in a connected state associated with a protocol for controlling radio resources (1602), transitioning, in response to a certain period of application data inactivity, to an inactive state associated with the protocol (1604), determining a channel configuration for uplink communication when the user device is in the inactive state (1606), and transmitting, by the processing hardware, further application data in the uplink direction to a base station in accordance with the determined channel configuration (1608) when the user device is in the inactive state, prior to transmitting a request to transition to the connected state and subsequently to completing a procedure for synchronizing the radio link between the user device and the base station.

公开(公告)号：US20210360727A1

公开(公告)日：2021-11-18

申请号：US17282500

申请日：2019-10-04

Applicant: Google LLC

Inventor： Ching-Jung Hsieh ,  Chih-Hsiang Wu

IPC: H04W76/25 ,  H04W12/06 ,  H04W68/00

Abstract: This document describes methods and systems for user equipment (UE) context transfer over radio access network (RAN) paging. A first base station receives from a second base station a first message that includes a context that is associated with a user equipment while the user equipment was in an engaged mode with the second base station. The first base station transmits a second message that is a paging message to the user equipment and in response receives, from the user equipment, a third message that includes a resume message authentication code identifier. After the first base station verifies the third message using the resume message authentication code identifier, the first base station transmits, to the user equipment, a fourth message that enables the user equipment to resume the engaged mode with the first base station in accordance with the context.

公开(公告)号：US20200092879A1

公开(公告)日：2020-03-19

申请号：US16569061

申请日：2019-09-12

Applicant: Google LLC

Inventor： Chih-Hsiang Wu

IPC: H04W72/04 ,  H04W8/24 ,  H04W8/00 ,  H04W76/15

Abstract: In some aspects, an evolved universal terrestrial radio access base station generates a capability enquiry message for requesting radio access capabilities of a user equipment. At times, the evolved universal terrestrial radio access base station configures a capability enquiry information element included in the capability enquiry message to request eutra-nr-only radio access capabilities of the user equipment. The evolved universal terrestrial radio access base station then transmits the capability enquiry message to the user equipment. Afterwards, the evolved universal terrestrial radio access base station receives, from the user equipment, a capability information message that includes at least some radio access capabilities for new radio that are supported by the user equipment.

公开(公告)号：US20200059991A1

公开(公告)日：2020-02-20

申请号：US16541047

申请日：2019-08-14

Applicant: Google LLC

Inventor： Chih-Hsiang Wu

IPC: H04W76/38 ,  H04W76/15 ,  H04W76/27

Abstract: This document describes methods and devices for preventing inadvertent idle mode for a UE in multi-node connectivity with a master node and at least one secondary node. In an implementation, the UE includes first and second Media Access Control (MAC) entities for respectively communicating with a master node and a secondary node. The UE starts or restarts at least one data inactivity timer responsive to detecting a communication of data on at least one of the MAC entities. Rather than inadvertently releasing resources of a node as part of the UE transitioning to an idle mode, thereby potentially ceasing connectivity of active communication with the node, the methods and devices described here prevent this release unless connections to both nodes are inactive. By so doing, degradation to a user's experience and the waste of power, computing, or bandwidth resources may be prevented.

公开(公告)号：US20250168919A1

公开(公告)日：2025-05-22

申请号：US18836608

申请日：2023-02-09

Applicant: GOOGLE LLC

Inventor： Chih-Hsiang Wu

IPC: H04W76/27 ,  H04W56/00 ,  H04W76/30

Abstract: In a method performed by a UE, a first message including an SDT configuration is received from a RAN when the UE operates in an RRC inactive state. The SDT configuration is for use by the UE when communicating with the RAN while the UE operates in the RRC inactive state. The method also includes, after receiving the first message, and while the UE is in the inactive state, receiving from the RAN an RRC release message, and, when the RRC release message includes a release indication for releasing the SDT configuration, releasing the SDT configuration.

公开(公告)号：US20250142554A1

公开(公告)日：2025-05-01

申请号：US18836619

申请日：2023-02-10

Applicant: GOOGLE LLC

Inventor： Chih-Hsiang Wu

IPC: H04W72/115 ,  H04W88/08

Abstract: A method of managing configuration information for SDT operation is performed by a DU of a distributed base station. The method includes receiving, from a CU of the distributed base station, a CU-to-DU message including a full SDT configuration for a UE, generating a delta SDT configuration to update the full SDT configuration, and transmitting to the CU a DU-to-CU message that includes the delta SDT configuration.