Method and equipment for realizing dispatching of users based on inter-cell interference coordination parameters

Abstract

The invention aims to provide a method and equipment for realizing dispatching of users based on inter-cell interference coordination parameters. Specifically, a base station end sends inter-cell interference coordination information obtained by detection to corresponding central control equipment; inter-cell interference coordination parameter information corresponding to the inter-cell interference coordination information and service load ratio information which are sent by the central control equipment are received; according to the service load ratio information, the inter-cell interference coordination parameter information is finely adjusted, so as to obtain corresponding target inter-cell interference coordination parameter information; and according to the target inter-cell interference coordination parameter information, users that the base station serves are dispatched. Compared with the prior art, the method provided by the invention can inhibit interference between macro cells and interference of macro cells to micro cells, can dynamically adapt to changes of nonuniform service loads and user distribution in an LTE-A network, and also remarkably improves cell throughput, particularly the throughput of cell edge users.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a technology for scheduling users based on inter-cell interference coordination parameters. Background technique [0002] The inter-cell interference elimination technology is an important means to ensure that the communication system service channel can be reused at the same frequency. With the development of the long-term evolution (LTE, LongTermEvolution) technology, there have been inter-cell interference elimination technologies corresponding to different LTE versions, for example: [0003] 1) Static inter-cell interference coordination (ICIC, Inter-cellInterferenceCoordination) and semi-static ICIC in LTERel-8 / 9 [0004] Traditionally, in LTERel-8 / 9, static ICIC and semi-static ICIC such as partial frequency reuse (FFR, Fractional Frequency Reuse) and soft frequency reuse (SFR, SoftFrequency Reuse) can improve the throughput performance of the cell edge, but ...

AI Technical Summary

Problems solved by technology

[0009] In some centralized ICIC or dynamic eICIC schemes, centralized control requires and processes a large amount of channel state information (CSI, ChannelStateInformation) of each UE in the system, and the information of the physical resource block (PRB, PhysicalResourceBlock) used by the scheduled UE will cause High backhaul signaling overhead

[0010] Some other centralized scheduling schemes cannot be applied in real products due to very complex algorithms or interfaces between base stations not supported by the LTE standard

[0011] In addition, some existing centralized ICIC or eICIC schemes each individually address inter-cell interference suppression from macro-to-small-cell and macro-to-macro cell perspectives, and few schemes involve jointly suppressing both macro-to-small cells and macro-to-small cells Interference, not to mention the inability to dynamically adapt to changes in the non-uniform business load and user distribution in the LTE-A network

Images