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Method and device for detecting pseudo-noise sequence confusion

A technology of pseudo-noise and sequence, which is applied in the field of detection of pseudo-noise confusion, can solve the problems of PN confusion, low efficiency, and low accuracy, and achieve the effect of improving accuracy

Inactive Publication Date: 2010-11-24
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In actual network planning, for urban areas or some areas with complex terrain, when base stations are densely distributed, the available PN is limited, so the distance of PN multiplexing is often short, which inevitably leads to over-area coverage, resulting in In some areas of the network, the pilot signals of the same PN can be covered, but in the network configuration, for a certain PN, a cell can only be configured with one neighboring cell, so PN confusion is easy to occur
The active set of the terminal is in such an area. When the PN pilot signal is found, it will find the target cell according to the adjacent cell configured in the network plan for handover. However, in fact, the target cell may not be the cell that transmits the pilot signal. Adding the wrong adjacent cell will cause interference and even call drop
[0004] In related technologies, it is usually found that there is PN confusion in the target cell by experience through drive test data combined with signaling analysis. This method is relatively inefficient and not very accurate.

Method used

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  • Method and device for detecting pseudo-noise sequence confusion

Examples

Experimental program
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Embodiment 1

[0027] In this embodiment, a method for detecting PN sequence confusion is provided. figure 1 is a flowchart of a method for detecting PN sequence confusion according to an embodiment of the present invention, such as figure 1 shown, including:

[0028] Step S102, acquiring handover data of users between cells in the network;

[0029] Step S104, using the handover data to generate a handover relationship set between cells in the network;

[0030] Step S106, in the switching relationship set, generate a confusion set according to the call drop rate of the switching relationship;

[0031] Step S108, in the confusion set, detect whether the target cell has PN sequence confusion according to the bridging cell used when the source cell adds the target cell to the active set in the handover relationship.

[0032] Through the above steps, according to the bridging cell of the target cell in the handover relationship, whether there is PN sequence confusion in the target cell is det...

Embodiment 2

[0040] This embodiment synthesizes Embodiment 1 and the preferred implementation modes thereof, and provides a device for detecting PN sequence confusion in this embodiment, figure 2 is a structural block diagram of a device for detecting PN sequence confusion according to an embodiment of the present invention, such as figure 2 As shown, the device includes: an acquisition module 22, a first generation module 24, a second generation module 26 and a detection module 28, and the above structure is described in detail below:

[0041] The acquisition module 22 is used to obtain the handover data of users between small cells in the network; the first generation module 24 is connected to the acquisition module 22, and is used to use the acquisition module 22 to obtain handover data to generate a handover relationship set between small cells in the network; the second generation module 26, connected to the first generating module 24, for generating a confusion set according to the...

Embodiment 3

[0050] This embodiment provides a preferred implementation of hardware for detecting PN confusion in an actual system, Figure 4 is a preferred structural block diagram according to an embodiment of the present invention, such as Figure 4 As shown, it includes: a base station 42 , a data collection server 44 , a data analysis machine 46 , and an operation maintenance module (Operation Maintenance Module, OMM for short) server 48 . It should be noted that the data collection server 44 is used to execute figure 2 The function of the acquisition module 22 in the data analysis engine 46 is used to perform figure 2 The function of detection module 26 in, OMM server 48 is used for carrying out image 3 The function of the modification module 34 in . The structure is described in detail below:

[0051] The base station 42 is used to process each terminal call and handover request until the end of the call, and report the call and handover information to the data acquisition se...

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Abstract

The invention discloses a method and a device for detecting pseudo-noise sequence confusion. The method comprises the following steps of: acquiring switching data of users between cells in a network; generating a switching relationship set between the cells in the network by using the switching data; in the switching relationship set, generating a confusion set according to the dropped call rate of the switching relationship; and in the confusion set, detecting whether a target cell has PN sequence confusion according to a bridging cell used when the target cell is added into an activation set by a source cell in the switching relationship. By using the method and the device, the accuracy for determining the PN confusion is improved.

Description

technical field [0001] The present invention relates to the communication field, in particular to a method and device for detecting pseudo-noise (PN) confusion. Background technique [0002] In a code division multiple access (CDMA) wireless communication network, the PN short code is used for orthogonal modulation of the front and reverse channels, and the length of the short code is 215, represented by 15 bits. On the forward channel, different base stations use different PN short codes to identify different base stations, and each PN differs by 64 chips (chip), so there are 512 different PNs in total. In network planning, in order to avoid PN confusion caused by signal delay, the PN values ​​​​of adjacent base stations often need to be separated by PN_INC, and PN_INC usually takes 2 or 3, which leads to fewer PNs that can actually be used. Therefore, PN multiplexing must be used in network planning, that is, different PN short codes are used to mark different base statio...

Claims

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Application Information

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IPC IPC(8): H04W24/02H04W24/08
CPCH04J13/0022
Inventor 陶睿
Owner ZTE CORP