Interference avoidance method and apparatus

A technology for interfering information and base stations, applied in the field of communication, can solve the problems of missed identification and complex manual identification, and achieve the effect of reducing interference

Active Publication Date: 2015-08-26
SHANGHAI HUAWEI TECH CO LTD
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

In the current technology, it is necessary to manually identify reserved cells. Manually identifying reserved cells requires knowing the relationship between neighboring cells, complex network planning in advance, and the possibility of missing identification. When there are multiple MBSFN areas, manual identification of reserved cells is more convenient. complex

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  • Interference avoidance method and apparatus
  • Interference avoidance method and apparatus
  • Interference avoidance method and apparatus

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Embodiment Construction

[0060] 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. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention belong to the protection scope of the present invention.

[0061] The invention provides an interference avoidance method and device, which can automatically identify reserved cells and reduce interference. The interference avoidance device provided by the embodiment of the present invention may be a functional entity with a multi-cell / multicast coordination entity (Multi-cell / multicast Coordination Entity, MCE) function, and the MCE has admission control of eMBMS sessions and MBSFN time-frequency resources of the base station Reservation and other control plane...

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Abstract

The embodiments of the invention disclose an interference avoidance method and apparatus. The interference avoidance method comprises: cell lists, relations between cells and neighboring cells, and interference information between cells that are reported by a base station in a multimedia broadcast multicast service single frequency network (MBSFN) area and a base station in a non-MBSFN area are obtained; according to the cell lists, relations between cells and neighboring cells, and interference information between cells, a reserved cell in the MBSFN area is determined by combining preset information of an ownership relation between cells and the MBSFN area, wherein other cells, except the reserved cell in the MBSFN area are broadcast transmission cells; an enhanced multimedia broadcast multicast server (eMBMS) session request sent by an MME is received; a first session instruction is sent to a base station of the reserved cell, wherein the first session instruction is used for indicating the base station of the reserved cell; and for the reserved cell, no eMBMS service is carried out at time-frequency resources occupied by the broadcast transmission cells or single-cast services are carried out by using a power less than a preset power. According to the embodiments of the invention, a reserved cell can be identified automatically, thereby reducing interference.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to an interference avoidance method and device. Background technique [0002] In traditional technologies, the wireless access network provides point-to-point unicast bearer services, supporting upper-layer user services such as file download and stream transmission, but unicast bearer services cannot share wireless and transmission resources of the access network. With the rapid development of smartphone users, the traffic generated by mobile video services and application store downloads is increasing rapidly. Even the long-term evolution (Long Term Evolution, LTE) network will inevitably have the risk of congestion. On the one hand, the user's business The experience has declined, and on the other hand, operators are faced with the dilemma of increasing revenue without increasing revenue. For this reason, the Multimedia Broadcast Multicast Service (MBMS) has been ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W4/06H04W48/06
CPCH04W4/06
Inventor 张毅
Owner SHANGHAI HUAWEI TECH CO LTD
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