Method, device and system for transmitting broadcasting services, and computer storage medium

#The disclosure relates to the field of communication, and particularly to a method, device and system for broadcast service transmission and a computer storage medium.

#For effectively utilizing mobile network resources, the 3rd Generation Partnership Project (3GPP) proposes a multimedia broadcast multicast service (MBMS). This service is a technology for sending data from a data source to multiple target mobile terminals, implements sharing of a network (including core network and access network) resource and increases a utilization rate of the network resource.

#The 3GPP proposes a research subject about a single-cell MBMS in Long Term Evolution-Advanced (LTE-A) Release 13 (R13). The single-cell MBMS is transmitted on a Physical Downlink Shared Channel (PDSCH). In a 3GPP network, an MBMS is identified with a Temporary Mobile Group Identity (TMGI) and the TMGI is allocated by a broadcast multicast-service centre (BM-SC). An application server (AS) notifies a user equipment (UE) of related service description information, for example, the TMGI and a service starting time, through application-layer signaling. single-cell point-to-multipoint (SC-PTM) is another method for transmitting a broadcast service on a PDSCH. A multimedia broadcast single frequency network (MBSFN) and the SC-PTM have a same core network, and a Multicell/Multicast Coordination Entity (MCE) at an access network determines to adopt the MBSFN or SC-PTM to send a broadcast service through an air interface. A traffic safety service is usually intended for multiple vehicles in a certain area, an efficient method is to adopt broadcast transmission for downlink. Simulation evaluation shows that adopting unicast transmission for downlink hardly meets a capacity requirement of a vehicle to everything (V2X) service. If a vehicle sending a V2X service moves fast, a service area or cell may frequently change. If the vehicle (or UE) enters an MBMS service area, user service description (USD) information is desired to be read at first, such USD including a content such as a service identifier, a deployment frequency, a starting/ending time and the service area. The UE determines a desired V2X service according to the content of the USD, then monitors control information of the desired V2X service and reads the desired V2X service. FIG. 1 is a schematic diagram of an MBMS-based V2X system architecture according to the related art. In the system architecture shown in FIG. 1, a V2X service is transmitted through an MBMS.

#The drawings described herein are adopted to provide a further understanding to the disclosure and form a part of the application. Schematic embodiments of the disclosure and descriptions thereof are adopted to explain the disclosure and not intended to form improper limits to the disclosure. In the drawings:

#FIG. 1 is a schematic diagram of an MBMS-based V2X system architecture according to the related art.

#FIG. 2 is a first flowchart of a method for broadcast service transmission according to an embodiment of the disclosure.

#The disclosure will be described below with reference to the drawings and in combination with the embodiments in detail. It is to be noted that the embodiments in the application and characteristics in the embodiments may be combined without conflicts.

#It is to be noted that terms “first”, “second” and the like in the specification, claims and drawings of the disclosure are adopted not to describe a specific sequence or order but to distinguish similar objects.

#The embodiment provides a method for broadcast service transmission. FIG. 2 is a first flowchart of a method for broadcast service transmission according to an embodiment of the disclosure. As shown in FIG. 2, the flow includes the following steps.