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Method for determining D2D relay node, and base station

A relay node, node technology, applied in electrical components, wireless communication, connection management, etc., can solve the problem of not considering terminal characteristics

Inactive Publication Date: 2017-09-05
ZTE CORP
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  • Summary
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  • Description
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Problems solved by technology

In practical applications, each terminal in the network has a certain selfishness, that is, the selected relay terminal needs to obtain certain benefits in cooperation, such as an increase in transmission rate, and the selected relay terminal through the above two mechanisms The relay terminal does not take this characteristic of the terminal into consideration

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  • Method for determining D2D relay node, and base station
  • Method for determining D2D relay node, and base station
  • Method for determining D2D relay node, and base station

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Embodiment Construction

[0116] The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described below are only used to illustrate and explain the present invention, and are not intended to limit the present invention.

[0117] D2D communication links in hybrid networks t → d t , and its sender (source terminal) is s t , the receiver (sink terminal) is d t , t is a positive integer, and t=1, 2...N, the hybrid network consists of base stations, traditional cellular links, and N pairs of D2D communication links, each communication link s t → d t It can be transmitted by direct communication or by relay communication. In the embodiment of the present invention, it is intended that each communication link s t → d t Select at least two relay nodes, establish at least two D2D relay links based on the selected relay nodes, and through the at least two D2D relay links, the ...

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Abstract

The present invention discloses a method and a base station for determining a D2D relay node; wherein, the method includes: determining at least two candidate relay nodes for a relay link among Y nodes within a predetermined range from a first D2D node ; Pre-estimate the first target transmission rate; Pre-estimate at least two second target transmission rates; Pre-estimate the first optimal average transmission rate; Pre-estimate at least two second optimal average transmission rates; According to the first target transmission rate, The at least two second target transmission rates, the first optimal average rate, and the at least two second optimal average rates determine whether the at least two candidate relay nodes are relay nodes of the relay link. Utilizing the present invention can at least increase the data transmission rate of the D2D terminal and satisfy the selfishness of the terminal.

Description

technical field [0001] The present invention relates to a device-to-device (D2D, Device-to-Device) relay technology, in particular to a method for determining a D2D relay node and a base station. Background technique [0002] In the field of communication, D2D communication technology refers to a technology that can directly transmit data between terminals within a short distance without base station forwarding. The direct communication method of D2D communication has the advantages of high data rate, low transmission delay and low power consumption. In some application scenarios, such as figure 1 In the hybrid network where the D2D network and the traditional cellular network coexist as shown, for the D2D terminals, in addition to the direct communication mode between the terminals, the D2D relay communication mode can also be used, that is, the communication between the source terminal and the sink terminal. In addition to direct data transmission, at least one other nod...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W40/22H04W76/02H04W24/08
CPCH04W40/22H04W24/08
Inventor 卢有雄王茹张国鹏杨鲲
Owner ZTE CORP
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