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Dynamic MBSFN decision method and device based on mobile network

A mobile network and dynamic technology, applied in the field of mobile network, can solve problems such as network failure, and achieve the effects of saving network resources, improving spectrum utilization, and saving wireless resources

Active Publication Date: 2013-06-05
CHINA UNITED NETWORK COMM GRP CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, whether to enable MBSFN transmission in this cell requires not only the number of users in the cell, but also the contribution to MBSFN as a whole. This simple decision method cannot meet the needs of the network.

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  • Dynamic MBSFN decision method and device based on mobile network
  • Dynamic MBSFN decision method and device based on mobile network
  • Dynamic MBSFN decision method and device based on mobile network

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Embodiment Construction

[0048] The present invention provides a method for judging the dynamic MBSFN transmission state through comprehensive consideration of the local existence detection of the MBMS transmission in the local cell and the calculation of the contribution degree of the local cell to the adjacent cell.

[0049] The opening of MBSFN mainly ensures the continuous requirement of MBMS. In any given area, the introduction of MBSFN area can ensure the sufficiency of MBMS coverage. At present, the definition of MBSFN continues the requirements of Rel.6 MBMS. When the user moves between cells, the seamless connection of MBMS can be completed without any handover process, and at the same time, the user terminal receiving MBMS is still allowed to be in the radio resource control idle state. RRC_Idle without transitioning to the radio resource control connected state RRC_Connected.

[0050] The dynamic MBSFN mode conversion in the present invention can select the optimal transmission mode for eac...

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Abstract

The invention relates to a dynamic MBSFN decision method and device based on a mobile network. The decision method comprises the following steps: 1. the MBMS user in the local cell is detected to obtain the total number of MBMS users in the local cell; if the total number is more than 0, the step 2 is executed, if the total number is equal to 0, the step 3 is executed; 2. if the adjacent cell turns on an MBSFN, the local cell turns on an MBSFN, the MBMS users in the local cell of which signal-to-noise ratios are lower than the signal-to-noise ratio threshold are detected to obtain the number of the MBMS users with signal-to-noise ratios lower than the threshold; if the adjacent cell turns off the MBSFN, the local cell adopts single-cell mode to perform MBMS transmission; and 3. E-Node B decides whether the local cell turns on or off the MBSFN according to the received total number of MBMS users in the adjacent cell and the number of the MBMS users with signal-to-noise ratios lower than the threshold. The method of the invention redistributes the dynamic switches or resources of the cell MBSFN transmission, thus effectively saving network resources, reducing unnecessary interferences of power transmitting to other businesses and facilitating to increase the spectrum efficiency.

Description

technical field [0001] The invention relates to a mobile network, in particular to a mobile network-based dynamic MBSFN decision method and device. Background technique [0002] The Enhanced Multimedia Broadcast Multicast Service (E-MBMS) introduces the single frequency network (SFN) transmission mode in the access network, that is, the multimedia broadcast single frequency network (MBSFN) transmission mode, which is to use the same frequency at the same time in multiple Cells transmit synchronously. Using this transmission mode can save frequency resources and improve spectrum utilization. At the same time, the diversity effect brought by the multi-cell co-frequency transmission can solve problems such as blind area coverage, enhance the reliability of reception, and improve the coverage rate. [0003] Considering that in the MBSFN network, if some MBSFN cells are closed for MBMS service transmission, the radio resources in these cells can be re-planned for the transmissi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W4/06H04W52/24H04W72/04
CPCY02B60/50
Inventor 盛煜王健全吕召彪
Owner CHINA UNITED NETWORK COMM GRP CO LTD
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