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A method and device for inter-device communication and scheduling

A scheduling method and inter-device technology, applied in the field of communication, can solve the problems of lack of unified network management and control, increased complexity, and increased eNB interaction.

Active Publication Date: 2018-05-29
DATANG MOBILE COMM EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] To sum up, in the existing technology, traditional device-to-device communication such as Wifi and Bluetooth, all use UE complete competition to preempt transmission resources, lack of unified management and control of the network, and the resource utilization rate is not high
However, the method of using eNB to control and schedule D2D communication requires resource coordination between eNBs for D2D communication between UEs located in different eNBs. For the situation where there are many D2D services, the interaction between eNBs will be greatly increased, and the complexity will increase. sex

Method used

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  • A method and device for inter-device communication and scheduling
  • A method and device for inter-device communication and scheduling
  • A method and device for inter-device communication and scheduling

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0104] Embodiment 1: D2D broadcast communication process controlled by DCE

[0105] see Figure 4 , the D2D communication method provided by the embodiment of the present invention includes:

[0106] Step 0: The eNB sends system information to the UE, which includes resource information for sending DSI and resource information for sending D2DCCH.

[0107] Step 1: If the D2D communication is triggered by the core network, the network sends paging to the sending UE. If it is D2D communication triggered by UE, step 1 is not required.

[0108] Step 2: A radio link control (RRC) connection is established between the UE and the eNB, and the establishment reason may be no signal (mo-Signalling). If the UE at the sending end is in the connected state, step 2 is not required.

[0109] Step 3: The UE sends a D2D service request to the DCE, which can carry the UE's TMSI, the initiated D2D service information, and the UE's location information (the location information can be reported...

Embodiment 2

[0123] Embodiment 2: D2D unicast communication process controlled by DCE

[0124] see Figure 5 , the D2D communication method provided by the embodiment of the present invention includes:

[0125] Step 50: The eNB sends system information to the UE, which includes resource information for sending DSI and resource information for sending D2DCCH.

[0126] Step 51: If it is the D2D communication triggered by the core network, the network sends a paging to UE2, one party of the D2D communication. If it is D2D communication triggered by UE, step 51 is not required.

[0127] Step 51a: If the D2D communication is triggered by the core network, the network sends paging to UE1, one of the D2D communication parties. If it is D2D communication triggered by UE, step 51a is not required.

[0128] Step 52: An RRC connection is established between UE2 and eNB. If UE2 is in connected state, step 52 is not needed.

[0129] Step 52a: An RRC connection is established between UE1 and eNB. I...

Embodiment 3

[0145] Embodiment 3: D2D broadcast communication process controlled by eNB

[0146] see Image 6 , the D2D communication method provided by the embodiment of the present invention includes:

[0147] Step 60: The eNB sends system information to the UE, including resource information for sending DSI and resource information for sending D2DCCH.

[0148] Step 61: If the D2D communication is triggered by the core network, the network sends paging to the sending UE. If it is D2D communication triggered by UE, step 61 is not required.

[0149] Step 62: An RRC connection is established between the UE and the eNB, and the establishment reason may be but not limited to mo-Signalling. If the sending UE is in connected state, step 62 is not required.

[0150] Step 63: The UE sends a D2D service request to the eNB, which can carry the UE's TMSI, the initiated D2D service information, and the UE's location information (the location information can be reported to the network after the UE...

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Abstract

The invention discloses an inter-equipment communication and scheduling method and device, which are used to realize direct communication between UEs in a D2D area. A method for scheduling D2D communication between devices provided by the present invention includes: a network side node broadcasts information for scheduling D2D resources to a user equipment UE, including resource information for sending D2D scheduling information DSI; the network side node receives UE According to the D2D service request of the UE, when it is decided to allocate resources for D2D communication to the UE, the DSI is used to schedule the UE to perform D2D communication.

Description

technical field [0001] The present invention relates to the field of communication technologies, and in particular to a device to device (Device to Device, D2D) communication and scheduling method and device. Background technique [0002] In the future development of mobile communication systems, in order to better meet user needs and improve the efficiency of interactive information, a direct communication mechanism between mobile devices will be introduced. However, there is currently no solution for how to perform direct communication between user equipments (User Equipment, UEs) that are close to each other. [0003] Next, a conventional mobile communication system will be described. [0004] see figure 1 , in the long term evolution (Long Term Evolvement, LTE) system, the mode of network centralized control is adopted, that is, the UE's uplink and downlink data are all sent and received under the control of the network. Communication between UEs is forwarded and cont...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W72/12H04W72/04
CPCH04W76/14H04W12/06H04W48/10H04W72/20
Inventor 张惠英刘佳敏杨义
Owner DATANG MOBILE COMM EQUIP CO LTD