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Method for completing d2d communication in different cells by using signaling interaction of x2 interface

A communication method and signaling interaction technology, which are applied in the field of network communication to achieve the effects of increasing data transmission rate, increasing network throughput, and reducing transmission time and waiting time.

Inactive Publication Date: 2016-01-20
XIDIAN UNIV
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Problems solved by technology

[0005] In order to solve the problems of coverage, capacity and communication quality in the next-generation broadband cellular mobile communication system, the present invention proposes a method for establishing D2D communication in different cells by using signaling interaction of the X2 interface.

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  • Method for completing d2d communication in different cells by using signaling interaction of x2 interface
  • Method for completing d2d communication in different cells by using signaling interaction of x2 interface
  • Method for completing d2d communication in different cells by using signaling interaction of x2 interface

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Embodiment Construction

[0070] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0071] Such as figure 2 Shown, the concrete steps of the present invention are as follows:

[0072] There are at least one pair of first user equipment and second user equipment in different cells, and a first base station and a second base station in different cells:

[0073] (1) The first user equipment communicates with the second user equipment in a cellular mode; wherein

[0074] (1a) When the first base station detects that the signal-to-noise ratio of the first user equipment is not ideal, obtain the location information of the first user equipment through a network-assisted method;

[0075] (1b) The first base station broadcasts the location information request of the second user equipment to the neighbor base station through the X2 interface, and the first base station starts a response time while sending the message;

[0076] (1c) within the res...

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Abstract

The invention puts forward a method for carrying out D2D communication between different cells by adopting the signaling interaction of X2 interfaces. The method is as follows: (1) as devices in different cells communicate in the cellular mode, by means of the signaling interaction of X2 interfaces, a base station discovers that the communication devices are close, meeting the D2D distance condition, and sends handshake challenge information to the devices; (2) after receiving the handshake approval information responses of the communication devices, the base station allocates beacon resources for testing; (3) the communication devices utilize the beacon resources to carry out D2D communication, detect the quality of channel communication, and notify the base station of a communication quality detection result; (4) if the communication quality of communication links is good, then the base station allocates D2D communication resources to the communication devices by means of the signaling interaction of X2 interfaces, and tells the communication devices to carry out D2D communication; (5) after finishing service transmission, the communication devices release the D2D resources. The method effectively saves the energy of user equipment, and increases the communication quality and capacity of a cellular mobile communication system.

Description

technical field [0001] The present invention relates to the technical field of network communication, and specifically relates to the use of X2 interface signaling interaction to complete direct communication from device to device (Device to DeviceD2D) in different cells, which is mainly used to improve network capacity and reduce transmission delay. Background technique [0002] There are problems in coverage and capacity in the next-generation broadband cellular mobile communication system centered on the base station (eNB: evolvedNodeB). For traditional cellular communication systems, if two cellular terminal users want to realize information interaction, the base station must be used as a relay, that is, the sender must transmit the information to be transmitted to the base station, and then the base station forwards Receiving end. However, for some nearby users, if the traditional cellular communication mode is still used, resources will be wasted. [0003] Therefore,...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W72/04H04W72/12
CPCY02D30/70
Inventor 侯蓉晖谢亚蓉李建东李红艳
Owner XIDIAN UNIV
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