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User equipment identifier allocation method, device and system

A technology for user equipment and identification allocation, which is applied in the field of communication and can solve the problems of reducing transmission redundancy, large transmission redundancy, ID conflict, etc.

Inactive Publication Date: 2014-03-26
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] 1. Assign a globally unique ID to the user equipment. For example, each data packet in the wireless LAN standard protocol 802.11 contains the hardware MAC address of the data sender and the MAC address of the data receiver. The MAC address used in 802.11 is a globally unique 48bit sequence, so each data packet contains a 96-bit device ID, resulting in large transmission redundancy
[0004] 2. Assign a relatively independent temporary ID to the user equipment in the coverage area. For example, in a cellular network, the base station assigns a temporary ID to the user equipment in the coverage area by itself. The information volume of the temporary ID of the user equipment is small, which can reduce transmission Redundancy, but ID conflicts may occur when user equipments between different base stations perform D2D communication
[0005] The existing technology cannot allocate a D2D communication identifier with a smaller number of bits to the user equipment under the condition of avoiding D2D communication identifier conflicts, so that the reduction of transmission redundancy and the avoidance of communication conflicts cannot be balanced

Method used

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  • User equipment identifier allocation method, device and system
  • User equipment identifier allocation method, device and system
  • User equipment identifier allocation method, device and system

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Experimental program
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Embodiment 1

[0111]In this embodiment, a first-level device management entity is set, and the coverage area of ​​the device management entity corresponds to a TA (Tracking Area) area or a plurality of continuous TA areas. If the coverage area of ​​a device management entity corresponds to a TA area , for LTE, the device management entity can be configured on the Mobile Management Entity (MME for short) in the LTE network, that is, the device management entity is a functional unit of the MME, and the coverage area of ​​the device management entity is the same as that of the MME. If a The coverage area of ​​the device management entity corresponds to multiple consecutive TA areas. For LTE, one TA area corresponds to the management area of ​​one MME. Then this device management entity can be configured on one of the MMEs in these continuous TA areas, that is, the device A management entity is a functional unit of one of the MMEs. The device management entity may also be a functional entity in...

Embodiment 2

[0133] This embodiment still takes LTE as an example for illustration, and its principle and implementation method are the same as in Embodiment 1, except that the device management entity is selected to be configured on the base station (or cell), that is, the device management entity is used as a function of the base station (or cell) entities, and the coverage area of ​​each device management entity is the same as that of its corresponding base station (or cell), and the method of presetting the device management entity ID is different. Only the different parts will be described in detail below.

[0134] In the LTE system, when the device management entity is selected to be configured on the base station, the device management entity ID may be determined according to the Physical Cell ID of the base station (or cell) corresponding to the device management entity. Then the D2D communication identifier of the user equipment is: the physical layer identifier of the base station...

Embodiment 3

[0139] In this embodiment, a cellular system is taken as an example for illustration. Its implementation method and principle are the same as in Embodiment 1, except that the equipment management entity is located in a multi-level network, and each level of equipment management entity is located in the coverage area of ​​the upper-level equipment management entity. The device management entity ID includes at least one level, and the device management entity ID of each level is unique in the coverage area of ​​the upper level device management entity. This embodiment only describes the different parts.

[0140] This embodiment is described by taking a two-level device management entity in a cellular system as an example. see Figure 5 , set up a device management entity in area A, area B, area X, etc., and it is a first-level equipment management entity, which can be called equipment management entity A, equipment management entity B, equipment management entity X, and first-l...

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Abstract

The embodiment of the invention provides a user equipment identifier allocation method, device and system, and relates to the field of communication. A D2D (Device-to-Device) communication identifier comprises a preset equipment management entity ID and a temporary ID, so that transmission redundancy is reduced, and communication interference is also avoided. The method provided by the embodiment of the invention comprises the following steps: an equipment management entity receives a notice that first user equipment starts D2D communication service; the equipment management entity allocates the D2D communication identifier for the first user equipment, and the D2D communication identifier comprises a preset equipment management entity identifier ID and a user equipment temporary-identifier ID, wherein the user equipment temporary-identifier ID is unique in the coverage area of the equipment management entity, and the equipment management entity ID corresponds to the equipment management entity; the equipment management entity sends the allocated D2D communication identifier to the first user equipment.

Description

technical field [0001] The present invention relates to the communication field, in particular to a method, device and system for user equipment identifier allocation. Background technique [0002] Device-to-Device (D2D for short) communication is a new type of technology that allows terminals to communicate directly by reusing cell resources under the control of the system. It can increase the spectrum efficiency of the cellular communication system and reduce the Transmit power, to a certain extent, solves the problem of lack of spectrum resources in wireless communication systems. In order to identify multiple communication links in D2D communication, the transmitted data packet generally includes device identifiers (Identifiers, IDs for short) of the communication source node and the communication destination node. In the prior art, methods for assigning D2D communication identifiers to user equipment generally include: Two kinds: [0003] 1. Assign a globally unique I...

Claims

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Application Information

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IPC IPC(8): H04W16/02
Inventor 冯淑兰周晗
Owner HUAWEI TECH CO LTD
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