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：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：US12028926B2

公开(公告)日：2024-07-02

申请号：US17656349

申请日：2022-03-24

Applicant: Google LLC

Inventor： Teming Chen

IPC: H04W76/27 ,  H04W36/08 ,  H04W48/08 ,  H04W76/10 ,  H04W76/30 ,  H04W88/06

CPC classification number: H04W76/27 ,  H04W36/08 ,  H04W48/08 ,  H04W76/10 ,  H04W76/30 ,  H04W88/06

Abstract: This document describes techniques and devices for handling an attempt to resume a wireless connection using a base station that supports a different core-network type. While in a current resource control state, such as an inactive state 332, a user equipment (UE) 111 or 112 selects a base station 124 with a different core-network type than a previously selected base station 122 or 121. In some cases, this selected base station 124 does not support the current resource control state or does not enable the UE 111 or 112 to transition to a different resource control state, such as a connected state 330. Consequently, if the UE 111 or 112 attempts to perform a procedure that would result in the UE 111 or 112 transitioning to the unsupported resource control state, the procedure may fail and consequently waste network resources or delay communications with the UE 111 or 112.

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：US20200323018A1

公开(公告)日：2020-10-08

申请号：US16759258

申请日：2019-08-06

Applicant: Google LLC

Inventor： Teming Chen

IPC: H04W76/27 ,  H04W36/08 ,  H04W48/08 ,  H04W76/30 ,  H04W76/10

Abstract: This document describes techniques and devices for handling an attempt to resume a wireless connection using a base station that supports a different core-network type. While in a current resource control state, such as an inactive state 332, a user equipment (UE) 111 or 112 selects a base station 124 with a different core-network type than a previously selected base station 122 or 121. In some cases, this selected base station 124 does not support the current resource control state or does not enable the UE 111 or 112 to transition to a different resource control state, such as a connected state 330. Consequently, if the UE 111 or 112 attempts to perform a procedure that would result in the UE 111 or 112 transitioning to the unsupported resource control state, the procedure may fail and consequently waste network resources or delay communications with the UE 111 or 112.

公开(公告)号：US12058603B2

公开(公告)日：2024-08-06

申请号：US17635227

申请日：2020-08-14

Applicant: GOOGLE LLC

Inventor： Teming Chen ,  Chih-Hsiang Wu

IPC: H04W48/02 ,  H04W48/10

CPC classification number: H04W48/02 ,  H04W48/10

Abstract: A method for avoiding undesired message transmissions from a user device to a RAN is implemented in a user device. The method includes receiving (202 or 302), from the RAN, a first value of the barring factor, and determining (206 and 210 or 306 and 310), based on a first probability corresponding to the first value, that access barring applies to a message transmission. The method also includes suspending (214 or 314) the message transmission while running a first timer (216 or 316) and, after the first timer expires or stops, either (1) if the first value does not correspond to a maximum probability of the different probabilities, determining (222 or 322) that the access barring is alleviated, or (2) if the first value corresponds to the maximum probability, continuing to suspend (224 or 326) the message transmission.

公开(公告)号：US11950307B2

公开(公告)日：2024-04-02

申请号：US17288434

申请日：2019-10-25

Applicant: Google LLC

Inventor： Chih-Hsiang Wu ,  Teming Chen

IPC: H04W76/16 ,  H04W76/19 ,  H04W76/27 ,  H04W76/30

CPC classification number: H04W76/16 ,  H04W76/19 ,  H04W76/27 ,  H04W76/30

Abstract: This document describes techniques and devices for efficient handling of a resource control state change and multi-node connectivity. Instead of performing multiple radio resource control (RRC) procedures to change a resource control state of a user equipment (UE) and establish, modify, or release a connection with multi-node connectivity, the techniques described herein combine the multiple RRC procedures into a single RRC procedure that supports both a resource control state change and multi-node connectivity. In particular, a master node sends a resource control state and multi-node connectivity message that includes both state change information and multi-node connectivity information. With this single message, timing and power resources of the UE can be conserved and failures resulting from asynchronous communication of the state change information and the multi-node connectivity information can be avoided.

公开(公告)号：US20230199578A1

公开(公告)日：2023-06-22

申请号：US17926548

申请日：2021-05-19

Applicant: GOOGLE LLC

Inventor： Chih-Hsiang Wu ,  Teming Chen

IPC: H04W36/00 ,  H04W36/30

CPC classification number: H04W36/0069 ,  H04W36/0079 ,  H04W36/305 ,  H04W36/03

Abstract: A method in a user equipment (UE) for managing configurations received from a radio access network (RAN) with a first network node that supports a first configuration and a second configuration for communicating with the RAN, and a second network node that supports the first configuration but not the second configuration is disclosed. The UE receives (1502A), from the first network node, (i) the first configuration and (ii) the second configuration; determines (1504A) that the UE is to re-establish a radio connection with the RAN, to communicate with the RAN via the second network node; releases (1506A) the second configuration; and communicates (1508A) with the second network node in accordance with the first configuration.

公开(公告)号：US20220217616A1

公开(公告)日：2022-07-07

申请号：US17607865

申请日：2020-04-28

Applicant: GOOGLE LLC

Inventor： Chih-Hsiang Wu ,  Teming Chen

IPC: H04W48/06 ,  H04W74/00

Abstract: A UE activates a timer for applying access control to transmissions associated with a certain access category during an access control period, in response to a first system information message received via a radio interface and a mobile-originated access request (1702). While the timer is running, the UE receives a second message that indicates a potential transition of the UE (i) from a current state associated with a protocol for controlling radio resources to another state associated with the protocol, or (ii) from a current cell to a new cell (1704). In response to the second message, the UE continues to apply the access control to the transmissions for the access category, for a remainder of the access control period (1706).