Base station-assisted mobile terminal equipment autonomously accessing method and device

A technology for mobile terminals and base stations, applied in electrical components, wireless communications, etc., to solve problems such as inability to propose effective solutions, low spectral efficiency, and heavy signaling load

Active Publication Date: 2010-12-01
BEIJING JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0023] It can be seen that the existing solutions either have the problem of too much signaling load or the problem of low spectrum efficiency, and cannot propose effective solutions

Method used

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  • Base station-assisted mobile terminal equipment autonomously accessing method and device
  • Base station-assisted mobile terminal equipment autonomously accessing method and device
  • Base station-assisted mobile terminal equipment autonomously accessing method and device

Examples

Experimental program
Comparison scheme
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Embodiment 1

[0059] Reference image 3 , Shows a flow chart of a base station-assisted mobile terminal device autonomous access method of the present invention, the method specifically includes:

[0060] S301: The transmitter sends request signaling to the receiver; the request signaling includes the ID of the transmitter and the ID of the receiver;

[0061] S302: After the receiver correctly receives the request signaling, the feedback can send the signaling to the transmitter;

[0062] Among them, the sending request signaling is abbreviated as RTS, and the sending signaling is abbreviated as CTS.

[0063] In a device-to-device communication (D2D) system, the transmitter and receiver perform a handshake process according to the principle of RTS / CTS time slot Aloha (SSARC). The handshake described here is also That is, the request signaling that the transmitter sends to the receiver includes the ID of the transmitter and the ID of the receiver. After the receiver correctly receives the request si...

Embodiment 2

[0089] Reference Image 6 , Shows a base station assisted mobile terminal device autonomous access device of the present invention, the device includes:

[0090] The request signaling sending module 601 is used for the transmitter to send request signaling to the receiver; the request signaling includes the ID of the transmitter and the ID of the receiver;

[0091] The signaling feedback module 602 can be used to send back signaling to the transmitter after the receiver correctly receives the request signaling;

[0092] The available resource obtaining module 603 is used for the transmitter to obtain the resources available for sending data from the uplink resource allocation information sent by the base station after receiving the signaling that can be sent; the uplink resources sent by the base station are the uplink resources in the LTE system ;

[0093] The data transmission module 604 is used for data transmission using the obtained available resources.

[0094] Preferably, the d...

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Abstract

The invention provides a base station-assisted mobile terminal equipment autonomously accessing method and a base station-assisted mobile terminal equipment autonomously accessing device. The method comprises the following steps of: transmitting a request signaling to a receiver by using a transmitter, wherein the request signaling comprises the ID of the transmitter and the ID of the receiver; after the receiver receives the request signaling, feeding back a transmittable signaling to the receiver; after the receiver receives the transmittable signaling, acquiring available resource of current transmitting data from uplink resource distribution information transmitted from a base station of an LTE system; and performing data transmission by using the acquired available resource. Resourceis seized by means of handshake between terminals and is transmitted by adopting the same frequency and the same time slot as those of the LTE system, so that rapid communication between user terminals and reasonable utilization of the sources are ensured.

Description

Technical field [0001] The present invention relates to the field of mobile communication technology, in particular to a method and device for autonomous access of mobile terminal equipment assisted by a base station. Background technique [0002] In the IMT-Advanced network, terminal devices with cognitive functions can directly communicate when certain conditions are met. [0003] At present, there are mainly two network structures: a centralized control cellular network and a distributed control Ad-hoc network. [0004] Cellular network: The communication between terminal equipment (UE) must be controlled by the base station (BS, or NB, eNB). [0005] Ad-hoc network: UEs can communicate directly or relay through another UE. [0006] In a cellular network, even if two terminal devices are very close to each other, a central controller such as a base station must be used to control communication, including control of transmission power and allocation of used resources. The advantage ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W72/12H04W74/08
Inventor 徐少毅黄清陶成谈振辉
Owner BEIJING JIAOTONG UNIV
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