A method and a user equipment as well as a method and a radio network node for multimedia broadcast service are disclosed. The radio network node sends, on a physical downlink control channel of the carrier, downlink control information using a multicast network identifier. The downlink control information includes a bit indicating whether or not at least two emergency notifications are broadcast on the carrier, and a notification relating to a change of a multicast channel of the carrier. The user equipment receives, on a physical downlink control channel of the carrier, downlink control information using a multicast network identifier. The user equipment behaves as if at least two fields relating to indication of said at least two emergency notifications are set to one in a paging message for the user equipment, when the information satisfies a condition.

Disclosed in various embodiments are a method for configuring a bandwidth part in a wireless communication system, and a device for supporting same. As one specific example, disclosed in various embodiments are: a method by which a device identifies, confirms, or configures an initial bandwidth part in a wireless communication system; and a device for supporting same.

Disclosed is a method and device for indicating a random access physical resource, which may include: semi-statically configuring an internal structure of a random access slot through a broadcast channel. A computer-readable storage medium is further provided in the present disclosure.

Disclosed is a method and device for indicating a random access physical resource, which may include: semi-statically configuring an internal structure of a random access slot through a broadcast channel. A computer-readable storage medium is further provided in the present disclosure.

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive a notification of a change to multicast broadcast (MB) control information associated with at least one MB service to which the UE is subscribed, the MB control information being included in an MB control channel (MBCCH) scheduled by a physical downlink control channel (PDCCH) communication addressed to an MB radio network temporary identifier (MB-RNTI); and monitor one or more resources of the MBCCH to receive updated MB control information based at least in part on receiving the notification of the change to the MB control information. Numerous other aspects are provided.

Embodiments of this disclosure provide methods, apparatuses, non-transitory computer-readable storage medium, and electronic devices for a multicast broadcast service. A method includes: receiving a first multicast broadcast service (MBS) session start request, selecting an intermediate user plane node, transmitting a first user plane MBS session establishment request to the intermediate user plane node, receiving a first user plane MBS session establishment response fed back by the intermediate user plane node and transmitting a second MBS session start request to a son control plane node to instruct the son control plane node to allocate son user plane nodes to the intermediate user plane node.

Presented are systems and methods for dynamically changing multicast service delivery between multicast and unicast with service continuity. A wireless communication device may receive multicast radio resource configuration information from a network. The wireless communication device may configure, according to the multicast radio resource configuration information, an air interface protocol stack of the wireless communication device. The wireless communication device may receive data of a multicast service according to the multicast radio resource configuration information.

A downlink data receiving method, a downlink data sending method, and a device are provided. The downlink data receiving method includes: obtaining a Hybrid Automatic Repeat Request (HARQ) process of an Multicast and Broadcast Service (MBS) service; and receiving downlink data of the MBS service according to the HARQ process. In the embodiments of the present disclosure, a specific MBS service can be sent and retransmitted through a corresponding HARQ process, so that a terminal can combine and decode data repeatedly sent by a network side for a plurality of times.

This disclosure provides methods, devices and systems for reliable delivery of enhanced broadcast services (EBCS) downlink (DL) packets to wireless stations (STAs) that support EBCS (also referred to as “EBCS STAs”) and maintaining interoperability with STAs that do not support EBCS. A wireless communication device may broadcast one or more EBCS DL packets carrying data associated with an EBCS service. In some aspects, the wireless communication device may subsequently transmit a trigger frame soliciting information indicating which, if any, of the EBCS DL packets were missed by EBCS STAs in the vicinity. In some other aspects, each EBCS DL packet may carry signaling indicating that the broadcast data is intended only for EBCS STAs. Still further, in some aspects, the wireless communication device may broadcast an EBCS traffic advertisement indicating a timing of the one or more EBCS DL packets.

In a communications system including a base station capable of altering a frequency bandwidth which is used for transmitting broadcast data for providing point-to-multipoint broadcasting communications service and which is used for transmitting individual communications data for providing point-to-point individual communications service, and a mobile terminal capable of altering a receivable bandwidth which is used for receiving at least the broadcast data and the individual communications data transmitted from the base station, decision processing of making a decision as to whether the mobile terminal can receive reception-desired content it desires to receive among contents provided by the broadcasting communications service is executed in accordance with a frequency occupying bandwidth used for transmitting the reception-desired content. Thus, the mobile terminal becomes able to make a decision as to whether it can receive particular E-MBMS content considering its own UE position.