Method and device of indoor and outdoor united coverage

A technology for indoor and outdoor channels, applied in electrical components, wireless communication, network planning, etc., to avoid the problem of ping-pong switching

Active Publication Date: 2011-09-21
CHINA MOBILE COMM GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to solve the problem of network coverage, and propose

Method used

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  • Method and device of indoor and outdoor united coverage
  • Method and device of indoor and outdoor united coverage
  • Method and device of indoor and outdoor united coverage

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] figure 1 It is a flow chart of a combined indoor and outdoor coverage method according to an embodiment of the present invention. Such as figure 1 As shown, this embodiment includes:

[0031] Step S102: Plan the adjacent indoor and outdoor coverage areas as a logical cell, and divide the N channels of the logical cell into M groups;

[0032] Step S104: Obtain the uplink channel power of the user terminal receiving the N channels respectively;

[0033] Step S106: Determine the channel group to which the user belongs according to the uplink channel power received by the user terminal on the N channels and the preset power threshold of the belonging group;

[0034] Step S108: Send downlink signals for the user terminal in the channel group to which the user belongs.

[0035] In step S102 of this embodiment, the indoor and outdoor coverage adjacent areas are planned as a logical cell, this logical cell includes N receiving channels, and the N channels are divided into M...

Embodiment 2

[0043] In this embodiment, on the basis of the first embodiment, a technical solution of space division multiplexing is added, so as to improve the throughput of the system. Specifically, for the user terminal U1 belonging to the outdoor channel group and the user terminal U2 belonging to the indoor channel group, it is determined whether U1 and U2 can perform space division multiplexing.

[0044] figure 2 It is a flow chart of the indoor and outdoor combined coverage method according to Embodiment 2 of the present invention. Such as figure 2 As shown, this embodiment includes:

[0045] Step S202: Plan the adjacent indoor and outdoor coverage areas as a logical cell, and divide the N channels of the logical cell into M groups;

[0046] Step S204: Obtain the uplink channel power of the N channel receiving user terminals respectively;

[0047] Step S206: Determine the channel group to which the user belongs according to the uplink channel power received by the user termina...

Embodiment 3

[0062] This embodiment will specifically describe the present invention in conjunction with specific examples. This example includes:

[0063] Step S1. Plan the adjacent indoor and outdoor coverage areas as a logical cell. This logical cell contains 9 receiving channels. Divide the 9 channels into 2 groups according to the area covered by the antenna (indoor or outdoor), and the smart antenna is a group. , the indoor distributed antenna is a group;

[0064] Step S2. The receiving power of user 1 in channel 1 to channel 8 of the outdoor channel group portion1 is -99dbm, then R_portion1=-99dbm+10×lg8=-90dbm, and the RSCP of user 1 in the indoor channel group portion2 is -110dbm, then R_portion_max =-110dbm, when the belonging threshold is 15db, since (-90)-(-110)>15, it can be determined that user 1 belongs to the outdoor channel group portion1;

[0065] Step S3. The receiving power of user 2 in channels 1 to 8 of the outdoor channel group portion1 is -109dbm, then R_portion1=...

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Abstract

The invention discloses a method and device of indoor and outdoor united coverage. The method comprises the following steps: planning adjacent indoor and outdoor covered areas as one logic cell and grouping N channels in the logic cell into M groups; respectively acquiring uplink channel power of a user terminal received by the N channels; according to the uplink channel power of the user terminal received by the N channels and a preset affiliated group power threshold, determining channel groups to which users are affiliated; and sending downlink signals to the user terminal in the channel group to which the users are affiliated. The method and device provided by the invention are utilized to plan the adjacent indoor and outdoor covered areas as one logic cell and grouping receiving channels in the logic cell, and classify the users into the different channel groups so as to transmit the downlink signals, thereby solving the indoor and outdoor ping-pong switching problem.

Description

technical field [0001] The invention relates to the technical field of wireless networks in the communication industry, in particular to a method and device for combined indoor and outdoor coverage. Background technique [0002] At present, TD-SCDMA indoor coverage usually uses BBU+distributed antennas for coverage. Due to the large isolation between floors, the coverage areas of each channel are relatively independent, and space division multiplexing technology can be applied to effectively increase system capacity. Outdoor coverage usually uses BBU+smart antennas for coverage. If a certain isolation condition is met in an outdoor environment, space division multiplexing technology can also be applied to increase system capacity to a certain extent. [0003] With the expansion and commercial use of TD-SCDMA networks, indoor coverage and outdoor coverage increasingly need to be seamlessly connected. At this time, there should be no coverage holes or over-coverage, which puts...

Claims

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Application Information

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IPC IPC(8): H04W16/18H04W16/20
Inventor 董昕边燕南王晓东张晟李通邹素玲牛纲
Owner CHINA MOBILE COMM GRP CO LTD
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