A method and device for selecting a decoding and forwarding relay node for a user terminal

Abstract

Disclosed is a method for choosing a decode-and-forward (DF) type relay node (RN) for user equipment (UE), comprising: grouping UE which is ready for performing network coding (NC) according to the communication quality of the UE; selecting a UE group one by one, selecting UE from the selected UE group, and choosing a corresponding DF type RN for the UE according to a rule for choosing a DF type RN; and again according to a rule for selecting UE, selecting corresponding UE for the chosen DF type RN respectively from each of other UE groups except the selected UE group. Disclosed at the same time is a device for choosing a DF type RN for UE. The present invention can be adopted to ensure the service throughput of a cell, and further ensure the frequency spectrum efficiency of edge UE of the cell.

Description

technical field [0001] The present invention relates to cell management technology in the field of mobile communication, in particular to a method and device for selecting a Decode-and-Forward (DF, Decode-and-Forward) relay node (RN, RelayNode) for a user terminal (UE, UserEquipment) . Background technique [0002] In a wireless communication system, by adding an RN between the base station and the UE, a link with poor quality between the base station and the UE is replaced by two links with better quality between the base station and the RN and between the RN and the UE road, so as to ensure the quality of service provided by the base station to UEs within its own coverage area, as well as the capacity and data access rate of the system. [0003] Currently, the RN added between the base station and the UE may be a DF RN. The DF type RN is used to demodulate and decode the received signal, and then use Network Coding (NC, Network Coding) technology to perform NC and modula...

AI Technical Summary

Problems solved by technology

However, in the above method of adding RN between the base station and the UE, since there is no limitation on how to select the corresponding DF RN for the UE, it may happen that one DF RN handles the services of multiple UEs, so, It will affect the service throughput of the cell where the DF RN is located, and further affect the spectral efficiency of the UE at the edge of the cell where the DF RN is located

[0004] It can be seen that since the prior art does not limit the method for the UE to select the DF RN to be used, it will affect the service throughput of the cell, and then affect the spectrum efficiency of the UE at the edge of the cell.

Images