Interference coordination method and device of common search space (CSS)

Abstract

Embodiments of the invention disclose an interference coordination method and device of a common search space (CSS). The method comprises: firstly, a base station selects a resource location of a CSS in communication resources according to a mapping mechanism, which relates a reference signal and / or reference information of the reference signal to the resource location of each CSS; and then the base station sends the reference signal and / or the reference information of the reference signal corresponding to the resource location of the CSS to a piece of user equipment corresponding to the base station, so that after the user equipment obtains the resource location according to the mapping mechanism, the user equipment receives control information transmitted by the base station at the resource location. The method and the equipment are suitable for the field of communication systems.

Description

technical field [0001] The present invention relates to the field of communication systems, in particular to an interference coordination method and device for a common search space CSS. Background technique [0002] With the rapid increase of the number of mobile users, the load of the communication system is getting bigger and bigger, and the layered heterogeneous network technology that can effectively reduce the average load of the network has been paid more and more attention. In order to expand the effective coverage of the communication network and improve the overall spectrum efficiency of the network, in recent years, heterogeneous network scenarios including Macro eNB (macro base station) and LPN (Low Power Node, low power node) have become the focus of research, among which LPN can It is Pico (micro base station), HeNB (Home eNB, home base station) and Relay (relay). At the same time, with the increase in gain and number of users brought by MIMO (Multiple Input M...

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Problems solved by technology

[0004] During the communication process, different base stations send their respective CSS resource location information on the same frequency domain resource, which will cause the user equipment located in one of the base stations (such as Pico) to receive the information sent by the adjacent base station (such as Macro). The interference of the resource location information of the CSS, that is, there is the same-channel interference problem of the CSS during the communication process, which causes the user equipment to be unable to correctly receive the resource location information of the CSS sent by the serving base station, and thus cannot correctly obtain the location of the CSS of the serving base station and use it in the communication process. The location acquisition service base station sends the system information and other content to the user equipment, which reduces the communication quality of the system

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