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Resource allocation method, device and system

A technology for resource allocation and resource allocation information, applied in the field of resource allocation methods, devices and systems, can solve problems such as inability to apply D2D discovery/communication systems, and achieve the effect of ensuring smooth progress

Active Publication Date: 2015-07-29
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] However, the communication resource allocation scheme applicable to cellular networks cannot be applied to D2D discovery / communication systems
Currently, there is no systematic discovery / communication resource allocation scheme for D2D systems

Method used

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  • Resource allocation method, device and system
  • Resource allocation method, device and system
  • Resource allocation method, device and system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0165] This embodiment provides a method for the UE to use the newly designed D2D scheduling request message to request D2D communication resources for D2D communication and release the D2D communication resources. The following is described in detail by Examples 1 to 5.

example 1

[0167] In a commercial application scenario, Mary and John hold UE1 and UE2 capable of D2D communication. UE1 and UE2 are within the D2D communication range of each other.

[0168] UE1 wants to initiate D2D communication with UE2, but UE1 does not have enough uplink air interface resources to send RRC messages or user plane data, such as Figure 9 shown, including:

[0169] 1. UE1 sends a D2D scheduling request message to the eNB through the PUCCH.

[0170] The D2D scheduling request message may include the D2D indication. In addition, the D2D scheduling request message may also include a D2D semi-persistent scheduling indication and the like.

[0171] 2. After receiving the D2D scheduling request message, the eNB performs admission control, and allocates D2D air interface resources according to the instruction of the scheduling request message.

[0172] 3. After completing resource allocation, the eNB sends an RRC connection reconfiguration message to UE1.

[0173]The RR...

example 2

[0180] In the public security scenario, Officers A, B, C, and D use public security UE1, UE2, UE3, and UE4 with D2D functions. Officers A, B, C, and D all subscribe to public safety services. After Officer A, B, C, and D arrive at the rescue location, their UEs are not within the coverage of the network, but UE1, UE2, UE3, and UE4 are within the D2D communication range of each other. UE4 acts as a central control node at this time, UE1, UE2 and UE3 are all connected to UE4, and UE4 performs resource allocation.

[0181] At the rescue location, Officer A hopes to initiate a broadcast call to inform other nearby Officers of relevant information. like Figure 10 shown, including:

[0182] 1. UE1 of Officer A sends a D2D scheduling request message.

[0183] The D2D scheduling request message may include a D2D semi-persistent scheduling indication, a semi-persistent scheduling interval, and the like. In addition, the D2D scheduling request message may also optionally include t...

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PUM

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Abstract

The invention discloses a resource allocation method, device and system. The method comprises the following steps: sending a resource request message, wherein the resource request message is a device-to-device D2D scheduling request message or a buffer area state report; receiving D2D resource configuration information and / or D2D resource allocation information; and carrying out D2D data transmission by utilizing the D2D resource configuration information and / or the D2D resource allocation information, D2D data being D2D discovery or D2D broadcast / multicast / unicast communication data.

Description

technical field [0001] The present invention relates to wireless communication technology, in particular to a resource allocation method, device and system. Background technique [0002] With the development of wireless multimedia services, people's demand for high data rate and user experience is increasing, which puts forward higher requirements on the system capacity and coverage of traditional cellular networks. On the other hand, application scenarios such as public security, social networking, short-distance data sharing, and local advertising have gradually increased people's demand for understanding and communicating with nearby people or things (Proximity Services). The traditional base station-centric cellular network has obvious limitations in terms of high data rate and proximity service support. Against this background of demand, Device-to-Device (Device-to-Device, D2D) technology came into being. The application of D2D technology can reduce the burden of the ...

Claims

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Application Information

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IPC IPC(8): H04W4/00H04W72/04H04W76/14
CPCH04W72/04H04W76/14H04W72/20
Inventor 陈琳李大鹏黄莹吴栓栓
Owner ZTE CORP
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