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Auxiliary D2D (device to device) link resource managing method, auxiliary D2D link resource managing device, D2D link resource managing method and D2D link resource managing device

A management method and link resource technology, applied in the field of management methods and devices, can solve problems such as the inability to reasonably adjust D2D link resources, and achieve the effect of avoiding adverse effects and improving resource utilization

Active Publication Date: 2015-05-20
DATANG MOBILE COMM EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] Aiming at the problem that D2D link resources cannot be reasonably adjusted in related technologies, the present invention proposes an auxiliary management method and device for D2D link resources, as well as a management method and device, which can reasonably adjust D2D link resources, thereby ensuring While satisfying D2D services, avoiding adverse effects on LTE cellular systems

Method used

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  • Auxiliary D2D (device to device) link resource managing method, auxiliary D2D link resource managing device, D2D link resource managing method and D2D link resource managing device
  • Auxiliary D2D (device to device) link resource managing method, auxiliary D2D link resource managing device, D2D link resource managing method and D2D link resource managing device
  • Auxiliary D2D (device to device) link resource managing method, auxiliary D2D link resource managing device, D2D link resource managing method and D2D link resource managing device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0112] Embodiment 1: All UEs that send or monitor D2D discovery monitor the D2D link status, and the network side adjusts the D2D discovery resource pool according to the result

[0113] refer to Figure 5 , including the following steps:

[0114] In step 50, the eNB broadcasts the D2D link monitoring configuration through a system message. This step can also be omitted, and the UE side obtains it in a predefined manner. System messages can use the existing ones, or define a new SIB. The broadcasted D2D link monitoring configuration information includes one or more of the following:

[0115] The number of D2D link collisions or the threshold and time of the probability, for example, configure the D2D collision probability to be up to 60%, and the duration T to be 100s. If the UE is within 100s, the D2D discovery collision probability in each D2D discovery cycle is higher than 60%, the reporting threshold is met; or, it indicates that when the UE cannot obtain D2D Discovery ...

Embodiment 2

[0127] Embodiment 2: All D2D communication UEs in the RRC connection state monitor the D2D link status, and the network side reduces the D2D Communication resource pool according to the results

[0128] The flowchart can also be found in Figure 5 ,details as follows:

[0129] Step 50 is the same as that in Embodiment 1, the eNB broadcasts the D2D link monitoring configuration through a system message, and this step can also be omitted. The broadcasted D2D link monitoring configuration information includes one or more of the following:

[0130] The number of times or probability thresholds and time of D2D link collisions. For example, configure the minimum threshold of D2D communication collision probability as 20%, and the duration T as 100s. If the UE is within the time period of 100s, the D2D communication collision probability is lower than 20%. then meet the reporting threshold;

[0131] Instruction, which is used to indicate that when the UE can obtain D2D Discovery r...

Embodiment 3

[0142] Embodiment 3: The network side instructs a specific UE to monitor the D2D link status, and adjusts the D2D resource pool according to the result reported by the UE

[0143] refer to Image 6 , including the following steps:

[0144] Step 60, the eNB sends the monitoring D2D link status and related configuration to UE1 and UE3 respectively through RRC dedicated signaling, and the configuration may include at least one of the following information:

[0145] D2D link collision times or probability threshold, time, such as D2D discovery collision probability is up to 60%, duration T is 100s, same as embodiment 1;

[0146] D2D bit error rate and time, if the D2D communication bit error rate is configured up to 20%, the duration T is 1min;

[0147] Indication information, indicating that D2D discovery or D2D communication resources can or cannot be obtained within a period of time, it needs to be notified to the network side.

[0148] Step 61: After receiving the configura...

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Abstract

Disclosed in an embodiment of the present invention are a D2D link resource assistant management method and device, and a management method and device, the assistant management method comprising: a user equipment (UE) receives a D2D link status monitoring instruction sent by a network side; the UE monitors the D2D link status in response to the D2D link status monitoring instruction to obtain a monitoring result; the UE checks whether a preset reporting condition is met, and if yes, then reporting the monitoring result to enable the network side to adjust, according to the monitoring result, the resources in the resource pool corresponding to the D2D link. In the embodiment of the present invention, a UE reports a D2D link monitoring result to enable a network side to adjust the resources for the D2D link according to the monitoring result, thus being able to avoiding adverse effect on an LTE cellular system and improving system resource utilization and rational use of resources, while ensuring the provision of D2D service.

Description

technical field [0001] The present invention relates to the field of communications, and in particular, to a method and device for auxiliary management of D2D (Device to Device) link resources, and a management method and device. Background technique [0002] (1) Existing mobile communication system [0003] In a Long Term Evolution (LTE for short) system, a network centralized control method is usually adopted, that is, as figure 1 As shown, the uplink and downlink data of the user equipment (User Equipment, referred to as UE) are all sent and received under the control of the network (for example, communicating with the core network through the base station (eNodeB)), and the communication between the UE and the UE It is also forwarded and controlled by the network, so there is no direct communication link between UEs, and UEs are not allowed to send uplink data by themselves. [0004] (2) D2D proximity service [0005] In the future development of the mobile communicat...

Claims

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Application Information

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IPC IPC(8): H04W8/14H04W24/02H04W72/04
CPCH04W8/005H04W72/542
Inventor 傅婧张慧英曾二林赵亚利许芳丽
Owner DATANG MOBILE COMM EQUIP CO LTD
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