Method and device for controlling the resource allocation in wireless relay network

Abstract

In the existing wireless relay network, a base station allocates different time-frequency resources to the mobile stations in a cell, and which would be restrained when the load of the cell is high. In view of this, a new way for allocating resource is provided, wherein the base station divides the mobile stations in the cell into the first set and the second set, and performs the control to allocate the multiplexing resources to the mobile stations in the first set, as well as the un-multiplexing resources to the mobile stations in the second set; therefore, the interference could be restrained while performing resource multiplexing in the cell, and the capability of the cell could be maximized.

Description

technical field [0001] The present invention relates to a wireless relay network, in particular to a method and device for controlling resource allocation in the wireless relay network. Background technique [0002] As the next-generation last-mile wireless access technology, WiMAX, a wireless metropolitan area network technology based on IEEE802.16 standard, is regarded as a wireless alternative to wired broadband access technologies (such as optical fiber and DSL). WiMAX can not only provide line-of-sight (LOS) and non-line-of-sight (NLOS) broadband connections between mobile terminals (MS) and base stations (BS), but also support various low-latency applications, such as voice and video communications. [0003] Since WiMAX can work in the frequency band above 2GHZ, it is preferable to use line-of-sight transmission, which limits the coverage of the base station to the urban area, and the user data capacity will drop sharply at the edge of the cell or in the covered area. ...

AI Technical Summary

Problems solved by technology

Those skilled in the art understand that the above-mentioned resource reuse scheme is inevitably figure 1 causing interference in the network shown, to figure 1 For example, mobile terminal b is far away from its associated (associated) relay station 2, in order to send a signal to relay station 2, the transmission power of mobile terminal b is adjusted higher, which makes the signal sent by it reach the adjacent relay station of relay station 2 1, it still maintains a high strength, so when the relay station 1 tries to receive the signal from the mobile terminal a, the signal from the mobile terminal b causes a relatively high degree of interference

Unfortunately, the IEEE802.16j standard does not mention how to reduce or eliminate the above interference

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