Multimedia broadcast multicast service single frequency network (MBSFN) optimization self-configuration method and device

Abstract

The invention discloses a multimedia broadcast multicast service single frequency network (MBSFN) optimization self-configuration method. The method comprises the following steps that: an MBSFN control device informs an evolved node base (eNB) to broadcast a feedback instruction to each piece of user equipment (UE) through a multipoint control channel (MCCH) and the eNB indicates each piece of UE to feed back multimedia broadcast multicast service (MBMS) feedback information; each piece of UE feeds back the MBMS feedback information to respective eNB according to the feedback instruction received from the eNB; after receiving the MBMS feedback information transmitted by each piece of UE, the eNB transmits the MBMS feedback information to the MBSFN control device; the MBSFN control device analyzes the received MBMS feedback information to acquire analysis information; and the MBSFN control device and a broadcast multicast-service center (BM-SC) perform cooperative control, so that the MBSFN and / or the BM-SC make a judgment result of performing optimization self-configuration operation on wireless resource in each cell in an MBSFN region corresponding to the MBSFN control device on the basis of the analysis information and a preset strategy. By the method, utilization ratio of the wireless resources can be increased; and continuity of the MBMS is supported.

Description

technical field [0001] The present invention relates to the field of mobile communication, in particular to a single frequency network optimization self-configuration method and device for an enhanced / evolved multimedia broadcast multicast service (E-MBMS) in an LTE system. Background technique [0002] A multimedia broadcast multicast service (Multimedia Broadcast Multicast Service, hereinafter referred to as MBMS) proposed by 3GPP (The 3rd Generation Partnership Project) is a broadcast multicast service supporting point-to-multipoint. With the progress of Long Term Evolution (LTE, Long Term Evolution) standardization, 3GPP LTE proposes Enhanced / Evolved Multimedia Broadcast Multicast Service (hereinafter referred to as E-MBMS). 3GPP has clearly defined the concept and framework for E-MBMS at present, and the E-MBMS system in R9 is a broadcast transmission system. [0003] According to the existing 3GPP technical specifications, the E-MBMS broadcast service adopts the netwo...

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Problems solved by technology

[0005] First of all, because the current E-MBMS system can only provide simple downlink broadcast services, there is no dedicated uplink channel for E-MBMS, and there is a lack of interaction between users and the network. As a result, when transmitting E-MBMS broadcast services, on the one hand, The user cannot give feedback to the network. On the other hand, the network cannot know which user terminals are receiving MBMS services and which user terminals are not receiving MBMS services. Therefore, the network cannot dynamically adjust service transmission according to the user's reception status;

[0006] Secondly, in the existing E-MBMS broadcast system, the base station cannot know the receiving status of the user. For example, if the user who is receiving the E-MBMS broadcast service moves out of the MBSFN area, it may cause discontinuity of the MBMS service provided to the user;

[0007] Third, from the perspective of transmission control mode, when E-MBMS adopts MBSFN transmission mode to transmit services, the MBSFN area adopts semi-static configuration. When there are no users interested in MBMS services in some areas, the network will still blindly The MBMS service is broadcast for the entire MBSFN area, so it will cause a lot of waste of wireless resources

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