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Method, user terminal and network node for identifying LTE (Long Term Evolution) version

A technology for network nodes and user terminals, applied in the field of communication, can solve the problems of LTE system function limitations, inability to obtain follow-up information, unclear access to LTE network nodes, etc., to achieve the effect of avoiding errors in access methods

Active Publication Date: 2010-07-21
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In the existing communication system, if there are different versions of the LTE system, when the UE communicates with the network node, it will not know which version of the LTE network node it has accessed, so it cannot obtain more follow-up information, which may cause The UE accesses the LTE system in a wrong way, or restricts the functions of the LTE system to a lower version

Method used

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  • Method, user terminal and network node for identifying LTE (Long Term Evolution) version
  • Method, user terminal and network node for identifying LTE (Long Term Evolution) version
  • Method, user terminal and network node for identifying LTE (Long Term Evolution) version

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Embodiment 1

[0030] The embodiment of the present invention utilizes the PBCH (Physical broadcast channel, physical broadcast channel) information in the LTE standard to identify each version of the LTE system, defines the first feature information in the PBCH information, and uses the first feature information as a distinguishing LTE system version The first feature information identifies whether the current network node is a network node of the LTE-B system or a network node of the LTE-A system.

[0031] Specifically, the PBCH information is the physical layer broadcast information transmitted by the network node of the LTE system to the user terminal through the physical layer downlink channel. The PBCH information has a total of 40 bits, mainly including:

[0032] 1. Downlink system bandwidth (3 bits), used to indicate the size of downlink bandwidth, can identify resource blocks occupied by 8 types of downlink system bandwidth: {6, 15, 25, 50, 75, 100, X1, X2}, each A resource block oc...

Embodiment 2

[0048] The embodiment of the present invention is extended on the basis of embodiment 1. After the first characteristic information is defined in the PBCH information, the second characteristic information is defined, and the correctness of the received PBCH information is verified by using the second characteristic information. .

[0049] In the downlink system bandwidth information in the PBCH information, since the LTE-B system does not use X1 and X2 to indicate the resource blocks occupied by the system bandwidth, the LTE-A system may use X1 and X2 to indicate the resources occupied by the system bandwidth Therefore, the downlink system bandwidth information indicating that the resource block of the downlink system bandwidth is X1 or X2 can be used as the second characteristic information. For example, the downlink system bandwidth information "110" indicates that the resource block occupied by the downlink system bandwidth is "X1", and the downlink The system bandwidth in...

Embodiment 3

[0061] The embodiment of the present invention also expands on the basis of embodiment 1, defines the second feature information in the PBCH information to verify the correctness of the received PBCH information, and when identifying the network nodes of the LTE system, first The second feature information is used for preliminary determination, and then the first feature information is used for further identification.

[0062] In this embodiment of the present invention, the definitions of the first characteristic information, the second characteristic information, the first matching condition and the second matching condition are the same as those in Embodiment 2, and the method for the network node to send PBCH information is also the same as that in Embodiment 2, which is not mentioned here. Let me repeat.

[0063] see image 3 , this embodiment may include the following steps:

[0064] 301: The UE receives PBCH information sent by a network node.

[0065] 302: Detect wh...

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Abstract

The invention discloses a method, a user terminal and a network node for identifying LTE (Long Term Evolution) version and belongs to the filed of communication. The method comprises the steps of: receiving PBCH (Physical Broadcast Channel) information; judging that the network node is a network node of an LTE-B system when a first characteristic in the PBCH information meets a first matching condition; and judging that the network node is a network node of an LTE-A system when the first characteristic in the PBCH information meets a second matching condition. The user terminal comprises a receiving module, a judgment module and a confirmation module. Since the embodiment of the invention uses different versions of information identification LTE in the PBCH information, the user terminal can identify equipment of different versions of LET systems and takes corresponding access modes, thereby avoiding user terminal access mode failure or preventing the function of the network node from being limited to a lower version.

Description

technical field [0001] The present invention relates to the communication field, in particular to a method for identifying an LTE version, a user terminal and a network node. Background technique [0002] The first standard version of LTE (LTE, Long Term Evolution, long-term evolution) is Release 8, the subsequent version is Release 9, and the subsequent smooth evolution version is LTE-Advanced, and the first version of LTE-Advanced is Release 10, which supports the original LTE For the convenience of description, LTE-B is used to represent the lower version of LTE, including Release8, and LTE-A is used to represent the higher version of LTE, including Release9, Release10 and subsequent higher versions. [0003] In order to maintain standard forward compatibility and backward compatibility in the process of LTE evolution and protect the interests of operators and users, it should be ensured that the various versions of LTE systems can meet: ) can not only access the LTE-B s...

Claims

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Application Information

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IPC IPC(8): H04L1/00H04B7/00
Inventor 唐臻飞陈杰鸿
Owner HUAWEI TECH CO LTD