Method, equipment and system for selecting service cell

A technology for serving cells and micro cells, which is applied in the field of communication, and can solve problems such as poor system performance of micro cells, high transmission power, and influence of micro base stations

Inactive Publication Date: 2014-05-14
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] If the terminal in the macro cell is located at the edge of the micro cell, and the distance between the terminal and the macro base station is greater than the distance between the terminal and the micro base station, then when the terminal performs uplink commu...

Method used

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  • Method, equipment and system for selecting service cell
  • Method, equipment and system for selecting service cell

Examples

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Embodiment 1

[0070] For a heterogeneous network, one or more micro base stations are usually distributed in the macro cell, and terminals served by the macro base station are also distributed on the edge of the micro cell served by the micro base station. These terminals are far away from the macro base station. When the macro base station performs uplink communication, it will cause interference to the micro base station, thereby reducing the service quality of the micro cell. In order to solve this technical problem, an embodiment of the present invention provides a method for selecting a serving cell. From the perspective of implementing the method at the macro base station side, see figure 1 , the method flow includes:

[0071] 101: Determine, among the terminals served by the macro base station, a terminal with strong interference with respect to the micro base station, where the micro base station is one or more micro base stations set in a macro cell served by the macro base station...

Embodiment 2

[0098] For such as Figure 4 In the heterogeneous network shown, there are micro base stations 1 and micro base stations 2 distributed in the macro cell, and terminals 1, 2, and 3 served by the macro base station are distributed on the edge of the micro cell 1 served by the micro base station 1. If the distance is relatively long and the distance to the micro base station is relatively short, the uplink communication with the macro base station will cause greater interference to the micro base station, resulting in a decrease in the service quality of the micro cell. In order to solve this problem, in combination with the content of the first embodiment above, the embodiment of the present invention provides a method for selecting a serving cell. see Figure 5 , the method flow includes:

[0099] 501: The macro base station sends the uplink SRS configuration information of the terminal served by the macro base station to the micro base station, so that the micro base station...

Embodiment 3

[0124] For such as Figure 4 In the heterogeneous network shown, there are micro base stations 1 and micro base stations 2 distributed in the macro cell, and terminals 1, 2, and 3 served by the macro base station are distributed on the edge of the micro cell 1 served by the micro base station 1. If the distance is relatively long and the distance to the micro base station is relatively short, the uplink communication with the macro base station will cause greater interference to the micro base station, resulting in a decrease in the service quality of the micro cell. In order to solve this problem, in combination with the content of the first embodiment above, the embodiment of the present invention provides a method for selecting a serving cell. see Image 6 , the method flow includes:

[0125] 601: The macro base station receives the RSRP of the micro base station measured by the terminal served by the macro base station and sent by the terminal served by the macro base st...

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Abstract

The invention discloses a method, a piece of equipment and a system for selecting a service cell and belongs to the field of communication. The method comprises the following steps: strong-interference terminals of one or more corresponding micro base stations among terminals served by a macro base station are determined, wherein the one or more micro base stations are arranged in a macro cell served by the macro base station; and uplink communication of the determined strong-interference terminals is switched to micro cells served by the corresponding micro base stations so as to take the micro cells served by the corresponding micro base stations as uplink service cells of the strong-interference terminals. The strong-interference terminals of the corresponding micro base stations are determined among the terminals served by the macro base station, and the micro cells served by the micro base stations are taken as the uplink service cells of the terminals, which can reduce the transmission power and power consumption of the terminals; and meanwhile, the interference to the micro base station is reduced, and the service performance of the micro base station is improved. In addition, after the terminals are switched to the micro cells, the macro cell can allocate more time-frequency resources to other terminals in the service range, thus improving the service performance of the macro cell.

Description

technical field [0001] The present invention relates to the communication field, in particular to a method, equipment and system for selecting a serving cell. Background technique [0002] In a wireless communication system, a heterogeneous network structure is usually adopted. For the macro cell (macro cell) served by a macro base station with a higher transmission power (for example, 46dBm) in a heterogeneous network structure, there are also one or more micro base stations with a lower transmission power (for example, 30dBm). The area covered is called a pico cell. For a terminal in a macro cell, which cell served by the base station is selected as the uplink and downlink serving cell of the terminal will affect the overall service quality of the network. [0003] In the prior art, when selecting a downlink serving cell for a terminal, the terminal usually selects a cell with a relatively large downlink RSRP (Reference Signal Reception Power, reference signal received p...

Claims

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Application Information

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IPC IPC(8): H04W48/20H04W52/02H04W36/08
CPCY02D30/70
Inventor 高毓恺李强
Owner HUAWEI TECH CO LTD
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