Data transmission method, multicast coordination entity device, base station device and eMBMS system
A data transmission method and technology of a multicast coordination entity, applied in the field of communication, can solve the problems of not being able to meet the voice communication requirements of key tasks well, and the data transmission capability of the eMBMS system is poor, so as to improve the data transmission capability, ensure the use experience, The effect of improving scheduling ability
Active Publication Date: 2019-06-21
HYTERA COMM CORP
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[0005] In view of this, the present invention provides a data transmission method, a multicast coordination entity device, a base station device, and an eMBMS system to solve the problem that the current eMBMS system has poor data transmission capabilities and cannot well meet the needs of key mission voice communications. question
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[0044] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0045]The data transmission method, multicast coordination entity, and base station system provided by the embodiments of the present invention are all applied to an evolved multimedia broadcast multicast service eMBMS system, and the eMBMS system usually includes a multicast coordination entity (MCE, Multi-cell / multicast Coordination Entity), evolved packet core network (EPC, Evolved Packet Core), IP multimedia subsystem (IMS, IP Multimedia Subsystem), evolved...
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The invention provides a data transmission method, multicast coordination entity device, a base station system and an eMBMS system. The method comprises acquiring data transmission information through a base station side of an eMBMS system; generating a network state message according to the data transmission information; sending the network state message to a multicast coordination entity; determining, by the multicast coordination entity, an information source coding rate adjustment indication according to the network state message, sending the information source coding rate adjustment instruction to the user terminal; and instructing the user terminal to adjust an information source coding rate. Therefore, the adjusted information source coding rate is adaptive to the network state ofthe eMBMS system, so that the data transmission capability in the eMBMS system is improved, the eMBMS system can meet the voice communication requirement of a key task, the scheduling capability of aneMBMS session is improved, and the voice call experience of a user is guaranteed.
Description
technical field [0001] The technical field of communication of the present invention, more specifically, relates to a data transmission method, a multicast coordination entity device, a base station device and an eMBMS system. Background technique [0002] Evolved Multimedia Broadcast Multicast Service (eMBMS, evolved Multimedia Broadcast Multicast Service) is an enhanced broadcast multicast technology applied to LTE networks proposed on the basis of the 3GPP Rel-9 protocol. [0003] The radio resource allocation method in the eMBMS system is generally only applicable to traditional broadcasting and television services, and is not applicable to mission-critical voice communications (such as MCPTT). In the eMBMS system, the existing voice data transmission methods are usually fixed modulation and coding methods and adaptive modulation and coding methods. Among them, the fixed modulation and coding methods cannot provide link adaptive transmission, so that the data transmissio...
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IPC IPC(8): H04W72/12
Inventor 谭文婷郜旭凯陈敏敏管鲍余庆祥
Owner HYTERA COMM CORP