A method and apparatus for transmitting a paging for vehicle-to-everything (V2X) communication in a wireless communication system is provided. A network node receives data corresponding to the V2X communication from a first UE, and transmits the paging indicating the V2X communication to a second UE. The network node may further broadcast the data to one or more UEs.

A first base station receives from a second base station, a handover request message for a wireless device. The handover request message comprises: one or more temporary mobile group identities (TMGIs) of one or more multimedia broadcast multicast service (MBMS) services that the wireless device is receiving or interested to receive; and at least one bearer identifier of at least one bearer for the wireless device. The first base station sends to the second base station, a handover request acknowledge message in response to the handover request message. The handover request acknowledge message indicates accepting at least one of the at least one bearer. The first base station transmits transport blocks comprising: MBMS transport blocks providing at least one of the one or more MBMS services to the wireless device; and data transport blocks of the at least one of the at least one bearer.

A handover method, a handover device, a network device and a relay terminal are provided. The method includes: sending, by a source network device, a handover request message for a first terminal to a target network device through an interface between network devices; wherein the handover request message comprises identifications of target relay terminals of the target network device.

Methods, apparatuses, and systems for wireless communications are described. A base station may send a message with configuration parameters to a wireless device, and the configuration parameters may be for at least two different types of carriers used for communications.

According to certain embodiments, a method performed by the wireless device comprises sending data packets using a first QoS-flow to DRB mapping; receiving a new mapping; and sending an SDAP end marker indicating that the wireless device is applying the new mapping. Also disclosed is a wireless device configured to perform the method.

A method for moving between first and second communications systems and an apparatus, where the method includes: receiving, by a user equipment (UE), a first message, where the first message is used to set up or modify a first evolved packet system (EPS) bearer for the UE in the first communications system, and the first message includes first quality of service (QOS) flow information that is of the second communications system and corresponds to the first EPS bearer; storing, by the UE, the first QOS flow information; moving, by the UE, from the first communications system to the second communications system; and determining, by the UE based on a first condition, QOS flow information used by the UE in the second communications system, where the first condition includes the first QoS flow information.

The invention relates to an improved handover procedure for a mobile terminal. Under control of the target base station, the mobile terminal is to perform a handoff to a target base station, wherein it is to be configured for communication with the target base station via a target radio cell comprising a downlink carrier and an uplink carrier. The mobile terminal receives a handoff command message for the handoff to the target base station including a handoff execution condition as trigger for executing handoff to the target base station. Then, the mobile terminal determines, based on the received handoff execution condition, whether or not the mobile terminal is to trigger execution of the handoff to the target base station. In case the mobile terminal determines that it is to trigger execution of the handoff to the target base station, the mobile terminal executes the handoff to the target base station.

Methods performed by a first node in a radio access network (RAN) for mobility of a user equipment (UE) served by a second node in the RAN. Such methods include receiving (1310), from the second node, a request for a mobility procedure for the UE towards at least one candidate target cell associated with the first node. Such methods include determining (1320) if the UE can be accepted for the requested mobility procedure and, if so, allocating resources to support mobility of the UE. Such methods include transmitting (1330), to the second node, a response that includes a configuration for the mobility procedure and indicates the UE can be accepted unless a cancelling message is subsequently received from the second node. Such methods include determining (1350) that the configuration is no longer valid, and transmitting (1360), to the second node, an indication that the configuration is no longer valid.

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).

Disclosed are a cell indication method and apparatus, a cell handover method and apparatus, a serving node, a terminal device, and a medium. The cell indication method may include: generating Downlink Control Information (DCI), wherein the DCI is used for indicating information of a target cell; and sending the DCI to a terminal device.