D2D (Dimension To Dimension) pair/D2D cluster communication building method

An establishment method and cluster communication technology, applied in the field of D2D pair/D2D cluster communication establishment, can solve problems such as waste of resources, large signaling overhead and time delay, increase network complexity, etc., so as to reduce delay, save resources, and simplify The effect of building a process

Active Publication Date: 2012-08-22
南京海骅信息技术有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This will undoubtedly bring a lot of unnecessary waste of resources
[0006] To sum up, the existing D2D cluster establishment methods have the following shortcomings and deficiencies: first, there is relatively large signaling overhead and time delay; second, there are application limitations
Most of the current D2D cluster establishment mechanisms are generally applicable to a specific service, but cannot be applied to other different types of services, which increases the complexity of the network to a certain extent

Method used

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  • D2D (Dimension To Dimension) pair/D2D cluster communication building method
  • D2D (Dimension To Dimension) pair/D2D cluster communication building method
  • D2D (Dimension To Dimension) pair/D2D cluster communication building method

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Experimental program
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Embodiment 1

[0043] This embodiment provides a method for establishing D2D pair / D2D cluster communication. The method adopts a D2D cluster communication establishment mechanism based on centralized scheduling, such as Image 6 As shown, the process is as follows:

[0044] (1) When the initiator user equipment (UE1) plans to establish D2D communication, it actively sends a "cluster establishment request" message to the base station eNodeB, in which the content of the message includes the communication mode, UE's own capabilities and service types, etc. User equipment information), taking Table 4 as an example (refer to Table 1 for information type and bit length), UE1 sends the message through the cellular link;

[0045] Table 4: Cluster establishment request signaling codebook information table based on eNodeB multicast

[0046] information type

length bits

communication mode identification

1

UE capability

0

business label

01

[...

Embodiment 2

[0054] This embodiment provides another method for establishing D2D pair / D2D cluster communication, which adopts a mechanism for establishing D2D cluster communication based on distributed scheduling, such as Figure 7 As shown, the process is as follows: In the distributed solution, the steps (1) to (3) of the D2D cluster communication establishment process are similar to those in Embodiment 1. However, due to the different cluster communication services / cluster application scenarios, the scheduling methods are different. The signaling codebook is also different accordingly (refer to Table 3). This embodiment gives the establishment process of the D2D cluster based on distributed scheduling, such as Figure 7 shown, including the following steps:

[0055] (1) The initiator user equipment (UE1) sends the "cluster establishment request" signaling through the cellular link, as shown in Table 6, the signaling information table indicates that UE1 attempts to establish local data ...

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Abstract

The invention discloses a D2D (Dimension To Dimension) pair/D2D cluster communication building method which comprises the following steps that: 1) initiator user equipment actively sends a cluster building request signaling code to a base station via a honeycomb link, wherein the content of the cluster building request signaling code comprises a communication mode, user equipment capability and a business label; 2) after the base station receives the cluster building request signaling code, the relevant information of the initiator user equipment is measured and analyzed so as to be combined with a system information selecting and scheduling mechanism to broadcast the cluster building request signaling code; 3) after the initiator user equipment and the adjacent user equipment receive the cluster building request signaling code, analysis is carried out by aiming at a cluster building strategy message; 4) the initiator user equipment sends a channel probing signal; the adjacent user equipment measures the D2D link quality; and the adjacent user equipment, which satisfies the requirement and serves as the candidate cluster use equipment, sends the cluster building confirmation message. According to the D2D pair/D2D cluster communication building method, the traditional cluster communication building flow simplified, resources are saved, and time delay is lowered.

Description

technical field [0001] The invention belongs to the technical field of communication, and relates to a method for establishing D2D pair / D2D cluster communication. Background technique [0002] With the extensive development of cellular wireless networks such as LTE / LTE-Advanced, D2D (Device-to-device) communication becomes more and more popular. Currently, there are mainly two D2D communication methods. D2D pair (D2D pair) communication and D2D cluster communication. The D2D pair communication refers to a communication mode in which two user equipments (User Equipment, UE) can directly exchange data with each other without a network-side base station (eNodeB) relay. The D2D cluster communication refers to a communication mode in which a user equipment can directly exchange data with other user equipment in a D2D cluster without a network-side base station relay. In traditional cellular communication, if a user equipment plans to exchange data with other user equipment, th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L1/00H04L1/16
Inventor 杜金玲周婷徐景郦振红王海峰
Owner 南京海骅信息技术有限公司
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