An apparatus is provided, which includes a first device, a second device, and a control circuit. The first device is configured to establish a wireless link with a wireless communication device in a first communication channel. The second device is configured to perform a first scan on a second communication channel to detect whether there are any radar signals on the second communication channel for a predetermined period of time. In response to the first scan satisfying a predetermined condition, the control circuit controls the first device to move the wireless link from the first communication channel to the second communication channel.

Methods, systems, and devices for wireless communications are described. A communications device may receive a downlink control message that supports indicating multiple modes for reporting hybrid automatic repeat request feedback, including a first mode for reporting hybrid automatic repeat request feedback and channel information according to a bundled configuration and a second mode for reporting hybrid automatic repeat request feedback according to a standalone configuration. The communications device may use the downlink control message to determine a mode for transmitting hybrid automatic repeat request feedback. The communications device may also transmit either bundled hybrid automatic repeat request feedback and channel information or standalone hybrid automatic repeat request according to the determined mode.

Methods, systems, and devices for wireless communications are described. A communications device may receive a downlink control message that supports indicating multiple modes for reporting hybrid automatic repeat request feedback, including a first mode for reporting hybrid automatic repeat request feedback and channel information according to a bundled configuration and a second mode for reporting hybrid automatic repeat request feedback according to a standalone configuration. The communications device may use the downlink control message to determine a mode for transmitting hybrid automatic repeat request feedback. The communications device may also transmit either bundled hybrid automatic repeat request feedback and channel information or standalone hybrid automatic repeat request according to the determined mode.

Systems and methods are disclosed for a CDMA base station management gateway for integrating CDMA into an LTE Evolved Packet Core (EPC) core network. In one embodiment, a system is disclosed, comprising: a base station management gateway situated between a code division multiple access (CDMA) base transceiver station (BTS) and an Evolved Packet Core (EPC) core network, the base station management gateway also situated between an additional base station and the EPC core network, the base station management gateway The method may further comprise: a stateful interworking proxy configured to perform interworking of CDMA signaling to Evolved Universal Mobile Telecommunications System Terrestrial Radio Access (EUTRAN) signaling by using an S2a/S2b interface toward the EPC and an A10/A11 interface towards the CDMA BTS; and a packet routing virtual function configured to enable mobile devices attached to the CDMA BTS to obtain IP connectivity via the EPC core network.

Systems and methods are disclosed for a CDMA base station management gateway for integrating CDMA into an LTE Evolved Packet Core (EPC) core network. In one embodiment, a system is disclosed, comprising: a base station management gateway situated between a code division multiple access (CDMA) base transceiver station (BTS) and an Evolved Packet Core (EPC) core network, the base station management gateway also situated between an additional base station and the EPC core network, the base station management gateway The method may further comprise: a stateful interworking proxy configured to perform interworking of CDMA signaling to Evolved Universal Mobile Telecommunications System Terrestrial Radio Access (EUTRAN) signaling by using an S2a/S2b interface toward the EPC and an A10/A11 interface towards the CDMA BTS; and a packet routing virtual function configured to enable mobile devices attached to the CDMA BTS to obtain IP connectivity via the EPC core network.

A connected car and an onboard user equipment (UE) may establish independent cellular connections and may also establish a connection between each other. The UE establishes a first cellular link between the UE and a first network, establishes a connection with a connected car, wherein the connected car has a second cellular link between the connected car and a second network, evaluates one or more conditions and declares one of the first cellular link or the connection with the connected car a primary network interface for the UE based on, at least, the one or more conditions.

A connected car and an onboard user equipment (UE) may establish independent cellular connections and may also establish a connection between each other. The UE establishes a first cellular link between the UE and a first network, establishes a connection with a connected car, wherein the connected car has a second cellular link between the connected car and a second network, evaluates one or more conditions and declares one of the first cellular link or the connection with the connected car a primary network interface for the UE based on, at least, the one or more conditions.

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 by the present disclosure are data transmission method and device. In an embodiment of the present disclosure, data transmission conditions of each serving cell among at least two serving cells is detected by means of a terminal so that the terminal may, according to the data transmission conditions of each serving cell, execute random access on a serving cell experiencing wave beam failure so as to update a service beam of the serving cell. Thus, when the terminal experiences wave beam failure in a serving cell in a carrier aggregation (CA) scenario, reliable data transmission may be achieved, and the reliability of data transmission may be effectively ensured.

Provided by the present disclosure are data transmission method and device. In an embodiment of the present disclosure, data transmission conditions of each serving cell among at least two serving cells is detected by means of a terminal so that the terminal may, according to the data transmission conditions of each serving cell, execute random access on a serving cell experiencing wave beam failure so as to update a service beam of the serving cell. Thus, when the terminal experiences wave beam failure in a serving cell in a carrier aggregation (CA) scenario, reliable data transmission may be achieved, and the reliability of data transmission may be effectively ensured.