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

A decoding, forwarding, and user terminal technology, applied in the field of cell management, can solve problems affecting UE spectrum efficiency, service throughput, and cell service throughput, and achieve the effect of ensuring spectrum efficiency and service throughput

CN103458426BActive Publication Date: 2016-02-10ZTE CORP
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Publication Date
2016-02-10

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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.
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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...

Examples

Embodiment Construction

[0048] The basic idea of ​​the present invention is: according to the communication quality of UE, the UE that prepares to carry out NC is divided into a plurality of groups; The UE selects a corresponding DF RN; and then selects corresponding UEs for the selected DF RN from UE groups other than the selected UE group according to the UE selection rules.

[0049] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0050] The present invention provides a method for selecting a DF RN for UE, as follows: figure 1 shown, including the following steps:

[0051] Step 101: According to the communication quality of the UEs, divide the UEs to be NC into multiple groups.

[0052] Here, the UE preparing to perform NC is determined according to the prior art, and the specific method for determining the UE preparing to perform NC will not be described here, and the base station may designate the UE to st...