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Method for reducing or eliminating multicast and broadcast boundary interference

A technology of multicast broadcasting and multicast broadcasting services, which is applied in the field of wireless multicast broadcasting and can solve problems such as interference

Inactive Publication Date: 2012-11-28
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

From the above description, it can be seen that no matter what the situation is, if a part of wireless resources is allocated separately in the downlink subframe for MBS service scheduling, interference will inevitably occur at the boundary of the MBS Zone

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  • Method for reducing or eliminating multicast and broadcast boundary interference
  • Method for reducing or eliminating multicast and broadcast boundary interference
  • Method for reducing or eliminating multicast and broadcast boundary interference

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Embodiment Construction

[0027] The idea of ​​the method for eliminating multicast broadcast boundary interference in the present invention is that the base station at the boundary of the MBS domain marks the wireless resources used for multicast broadcast as reserved resources, thereby forming a guard band at the boundary of the MBS domain. The guard band may be inside the border of the MBS domain, may also be outside the border of the MBS domain, or may be formed on both sides of the border of the MBS domain.

[0028] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, but not as a limitation of the present invention.

[0029] To realize the multicast broadcast service in a wireless communication network, it is first necessary to configure wireless resources for the MBS service for the multicast broadcast service in the downlink subframe of Orthogonal Frequency Division Multiple Access (OFDMA).

[0030] There are at least two ...

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Abstract

The invention relates to a method for reducing or eliminating multicast-broadcast boundary interference, which is applied to multicast-broadcast service of multiple base stations for supporting macro diversity, and comprises the following steps: (1) arranging wireless resources for multicast and broadcast in a downlink subframe of an orthogonal frequency division multiple access OFDMA system; (2) sending arranged wireless resource information for the multicast and the broadcast to a base station at a boundary of a multicast-broadcast zone; and (3) marking the wireless resource information for the multicast and the broadcast as a reserved resource type 1 by the base station at the boundary of the multicast-broadcast zone. Through setting the resource for the multicast and the broadcast asa reserved resource by the base station at the MBS Zone boundary, the method for reducing or eliminating the multicast-broadcast boundary interference forms a protective belt at the inside or the outside or two sides of the MBS Zone boundary, so as to eliminate mutual interference of the base stations at the multicast-broadcast boundary.

Description

technical field [0001] The invention relates to the technical field of wireless multicast broadcasting, in particular to a method for reducing or eliminating border interference of multicast broadcasting domains in wireless multicast broadcasting. Background technique [0002] A working group SPWG (Service Provider Work Group, Requirements Working Group) in the WiMAX (Word Interoperability for Microwave Access) forum defines the service type of the multicast broadcast service, which can be used by multiple users take over. When this service is carried on the air interface, it can use one-to-one unicast mode with multiple receiving users to allow multiple users to receive; or use one-to-many multicast broadcast mode with multiple receiving users to achieve multiple The latter method can save wireless resources in the air. [0003] The MBS multicast broadcast service needs to define the bearer mode of the air interface, that is, the service uses the same wireless resource to...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B7/02H04L27/26
Inventor 宋建全褚丽许玲曲红云
Owner ZTE CORP