Systems and methods described herein improve a customer experience for non-standalone cellular networks by displaying a secondary cell group (SCG) network icon after data activity ends while a user device likely remains in SCG coverage. When connected to the SCG, the user device detects inactivity on the connection and initiates a first timer, based on the detecting, while continuing to present an SCG-related icon. If the first timer expires while the user device is in an idle state, the user device initiates a second timer, while continuing to present the SCG-related icon. If the user device detects an active connection before expiration of the second timer, the user device initiates a third timer while continuing to present the SCG-related icon. If the user device fails to detect a connection to the SCG before expiration of the third timer, a master cell group (MCG)-related icon is displayed.

In one aspect, a method of wireless communication includes receiving, by a user equipment (UE), a preconfigured uplink resource (PUR) configuration message indicating a PUR configuration for small data transmissions. The method also includes determining, by the UE, a PUR configuration release trigger for the PUR configuration. The method further includes receiving, by the UE, a PUR configuration release message configured to release the PUR configuration. In another aspect, a method of wireless communication includes transmitting, by a network entity, a preconfigured uplink resource (PUR) configuration message indicating a PUR configuration for small data transmissions. The method also includes determining, by the network entity, a PUR configuration release trigger for the PUR configuration. The method further includes transmitting, by the network entity, a PUR configuration release message configured to release the PUR configuration. Other aspects are described and claimed.

Some aspects of this disclosure relate to apparatuses and methods for communicating in a first radio access technology (RAT) and a second RAT. A user equipment (UE) can receive, from a first base station using the first RAT, first configuration information for the UE to communicate with a second base station via the second RAT; and receive, from the first base station using the first RAT, a downlink message to enable a communication link between the UE and the second base station via the second RAT. The downlink message includes second configuration information for the UE to communicate with the second base station via the second RAT. The UE can establish the communication link between the UE and the second base station using the second RAT based on a link configuration obtained from the first configuration information and the second configuration information.

Some aspects of this disclosure relate to apparatuses and methods for communicating in a first radio access technology (RAT) and a second RAT. A user equipment (UE) can receive, from a first base station using the first RAT, first configuration information for the UE to communicate with a second base station via the second RAT; and receive, from the first base station using the first RAT, a downlink message to enable a communication link between the UE and the second base station via the second RAT. The downlink message includes second configuration information for the UE to communicate with the second base station via the second RAT. The UE can establish the communication link between the UE and the second base station using the second RAT based on a link configuration obtained from the first configuration information and the second configuration information.

Provided is an information transmission method and apparatus. The method applied to a first base station includes: acquiring related information of a terminal, where the related information is uplink information or downlink information, and includes traffic data and/or control information; sending the related information to the second base station through a common transmission channel between base stations. When the related information is uplink information, the first base station is a current serving base station of the terminal, the second base station is a previous serving base station of the terminal, and the uplink information is supplied to the second base station to be decoded. When the related information is downlink information, the second base station is the current serving base station, the first base station is the previous serving base station, and the downlink information is sent to the terminal to be decoded. Further provided is a computer storage medium.

Provided are a method and device for releasing radio resource control connection, a base station, a user equipment and a computer-readable storage medium. The method includes that a base station configures radio resource control connection release control information for a user equipment before the base station is triggered to release a radio resource control connection of the user equipment; and the base station makes a decision according to the radio resource control connection release control information when the base station releases the radio resource control connection of the user equipment.

A user equipment (UE) device may reside in a state of dual connectivity with a master cell group (MCG) and a secondary cell group (SCG), wherein the radio access technologies of the MCG and the SCG are different. While in the dual connectivity state, the UE device may transition to a mode of reduced activity (e.g., processing and/or RF activity) relative to the secondary cell group (SCG) in order to save power, e.g., when traffic flow via the SCG is below a threshold, or when scheduling activity on the SCG is low. Various mechanisms may be employed to reduce activity, e.g., mechanisms such as reduction of beam monitoring, deactivation of secondary cells of the SCG, reduction of number of active antenna elements, employment of longer periods for periodic measurement and reporting processes, etc.

The present disclosure provides a method (400) in a first terminal device. The method (400) includes: transmitting (410) a first message indicating a first sidelink Access Stratum, AS, configuration to a second terminal device; receiving (420) from the second terminal device a second message indicating a failure of the first sidelink AS configuration; and transmitting (430) to a network device a report regarding the failure of the first sidelink AS configuration. The report contains one or more of: an indicator indicating the failure of the first sidelink AS configuration, or an identification of the second terminal device.

A method and system to help address excessive RAB-modification requests as may happen when a UE is connected with and served by a first access node and the first access node repeatedly configures and de-configures dual connectivity for the UE where the UE would be connected with and served concurrently by the first access node and a second access node, with each configuring and de-configuring including a RAB-modification request to transfer a RAB of the UE between being anchored at the first access node and being anchored at a second access node. A computing system could detect that the rate of such RAB-modification requests is at least predefined threshold high and could cause the requests to be discontinued, such as by causing the first access node to at least temporary stop sending such requests.

A method, UE, and computer programs are provided where the UE has multiple universal subscriber identity modules. Information is received from a first PLMN indicating there is one of mobile terminating (MT) signaling or data in the first PLMN while the UE is in a second PLMN. Responsive to receiving the information, a service request is sent to an AMF node of the second PLMN. A radio resource control (RRC) connection release is received from a RAN node in response to sending the service request. Responsive to receiving the RRC connection release, the second PLMN is left to be in the first PLMN.