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Access control method and access control device for remote terminals, terminals and base station

A technology of remote terminal and admission control, applied in the field of communication, which can solve the problems of diversification, complicated admission control methods, provision of time-frequency resources, etc.

Inactive Publication Date: 2016-02-03
DONGGUAN COOLPAD SOFTWARE TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the decision of admission control needs to consider the time-frequency resource margin, with the introduction of various resource allocation methods in the future, it will inevitably lead to the complexity and diversification of admission control methods
[0007] Compared with the scheduled resource configuration method, the free selection method from the resource pool usually needs to occupy a certain time-frequency resource. When this resource configuration method is used, if the eNB or the relay UE allocates a large resource pool, the remaining resources cannot satisfy the service requests of all other remote UEs, that is, a relay UE can serve N remote UEs in terms of power and storage space, but cannot serve the N remote UEs The secondary link transmission of all provides time-frequency resources

Method used

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  • Access control method and access control device for remote terminals, terminals and base station
  • Access control method and access control device for remote terminals, terminals and base station
  • Access control method and access control device for remote terminals, terminals and base station

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0100] Embodiment 1: The base station performs resource scheduling and admission control on the remote UE

[0101] In this embodiment, the resource pool for secondary link transmission is configured by the eNB, and the admission control is also implemented by the eNB. At this time, the connection establishment request and the admission result feedback of the remote UE need to be forwarded by the relay UE. The specific process is as Figure 8 shown, including:

[0102] Step 802, the remote UE sends a UE-NW relay communication connection establishment request.

[0103] Step 804, the relay UE forwards the connection establishment request to the eNB.

[0104] Step 806, the eNB judges whether the eNB resource shortage warning message is received, that is, the eNB judges whether the remaining amount of time-frequency resources is small, and if so, feeds back the admission result that access is not allowed to the relay UE; if not, executes step 808 .

[0105] Step 808, the eNB ju...

Embodiment 2

[0109] Embodiment 2: The base station performs resource scheduling for the remote UE, and the relay UE performs admission control for the remote UE

[0110] In this embodiment, the eNB is responsible for configuring the secondary link transmission resource pool, calculating whether time-frequency resources are tight, and notifying the result to the relay UE; the relay UE is responsible for grant control, and reports the control result to the eNB. The specific process is as Figure 9 shown, including:

[0111] Step 902, the remote UE sends a UE-NW relay communication connection establishment request.

[0112] In step 904, the relay UE judges whether the eNB resource shortage warning message has been received, and if yes, feeds back the admission result that the access is not allowed to the remote UE, and reports the result to the eNB; if not, executes step 906.

[0113] Step 906, the relay UE judges whether the number of UEs that have already accessed has reached the upper li...

Embodiment 3

[0116] Embodiment 3: Relay UE performs resource scheduling and admission control on remote UE

[0117] In this embodiment, the resource pool for secondary link transmission is configured by the relay UE, admission control is also implemented by the relay UE, and the relay UE reports the result to the eNB. The specific process is as Figure 10 shown, including:

[0118] Step 1002, the remote UE sends a UE-NW relay communication connection establishment request.

[0119] Step 1004, the relay UE judges whether it has received the resource shortage warning information of the relay UE, and if so, feeds back the admission result that access is not allowed to the remote UE, and reports the result to the eNB; if not, executes step 1006.

[0120] Step 1006, the relay UE judges whether the number of UEs that have already accessed has reached the upper limit of the current load of the relay UE, and if so, feeds back the admission result that access is not allowed to the remote UE, and ...

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Abstract

The invention provides an access control method and an access control device for remote terminals, terminals and a base station in D2D communication, wherein the access control method for the remote terminals in D2D communication comprises the following steps: judging whether the number of accessed terminals reaches a predetermined number or not while receiving access requests sent by the remote terminals, and judging whether the residual amount of time-frequency resources for performing resource scheduling of the remote terminals is less than or equal to a predetermined resource amount or not; refusing the access requirements of the remote terminals if judging that the number of the accessed terminals reaches the predetermined number and / or the residual amount is less than or equal to the predetermined resource amount; and allowing the access requests of the remote terminals if judging that the number of the accessed terminals does not reach the predetermined number and the residual amount is more than the predetermined resource amount. According to the invention, whether the remote terminals are allowed to access can be determined in the two aspects of the number of the accessed terminals and the residual amount of the time-frequency resources; and thus, the performance and the robustness of D2D relay communication are improved.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular, to an admission control method for a remote terminal in D2D communication, an admission control device for a remote terminal in D2D communication, a terminal and a base station. Background technique [0002] Direct terminal communication technology (Device to Device, or D2D) means that user equipment (User Equipment, UE) can communicate directly without transmission or forwarding by equipment such as base stations (eNBs). D2D communication can be deployed in cellular networks. within and / or out of network coverage. [0003] UE-NW (UE-to-Network) relay is a new feature introduced in D2D communication. It has the advantages of flexible deployment and can expand network coverage without adding existing network equipment. It is used in commercial communication and even public safety. There are important applications in the field of communication (such as earthquake and ...

Claims

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Application Information

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IPC IPC(8): H04W48/02H04W48/06
CPCH04W48/02H04W48/06
Inventor 雷艺学张文杰江明郑倩张晨璐张云飞
Owner DONGGUAN COOLPAD SOFTWARE TECH
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