Method and device for merging virtual cells and network system

A technology of virtual cell and area, applied in the field of network communication, which can solve the problems of low user rate, reduced RRH and user signal transmission rate, etc.

Active Publication Date: 2018-11-13
CHINA UNITED NETWORK COMM GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] Embodiments of the present invention provide a method, device and network system for merging virtual cells, which solves the problem of strong interference between overla...

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  • Method and device for merging virtual cells and network system
  • Method and device for merging virtual cells and network system
  • Method and device for merging virtual cells and network system

Examples

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Embodiment 1

[0104] Embodiment 1. The embodiment of the present invention provides a method for merging virtual cells, such as figure 1 Shown include:

[0105] S101. Divide an overlapping area composed of at least two virtual cells in a preset area.

[0106] S102. When the first virtual cell Cell-1 and the second virtual cell Cell-2 in the overlapping area meet the merging condition, merge the first virtual cell Cell-1 and the second virtual cell Cell-2 that meet the merging condition in the overlapping area into a new virtual community Mu-Cell.

[0107] Wherein, the first virtual cell Cell-1 and the second virtual cell Cell-2 respectively belong to one of at least two virtual cells Cell, and the first virtual cell Cell-1 and the second virtual cell Cell-2 are different, the first virtual cell The cell Cell-1 provides services for at least one first UE, the second virtual cell Cell-2 provides services for at least one second UE, and the new virtual cell Mu-Cell provides services for at l...

Embodiment 2

[0109] Embodiment 2. The embodiment of the present invention provides a method for merging virtual cells, such as Figure 2-a – Figure 2-d Shown include:

[0110] Scenario 1. Embodiments of the present invention provide a method for merging virtual cells, such as Figure 2-a Shown include:

[0111] S1010. Obtain the reference signal received power RSRP value measured by the UE through the remote radio head RRH-1 in the preset area, where the remote radio head RRH-1 is any remote radio head RRH in the preset area.

[0112] S1020. Compare the RSRP value with the RSRP threshold value.

[0113] It should be noted that the RSRP threshold value refers to the minimum RSRP set by the UE; for example, if the RSRP threshold value is -130dBm, and the RSRP value measured by the UE through RRH-a is -100dBm, the measured RSRP value at this time -100dBm is greater than the RSRP threshold value -130dBm, so this RRH-a can be used as the RRH that provides services for the UE; if the RSRP v...

Embodiment 3

[0193] Embodiment 3. Embodiments of the present invention provide an implementation of a virtual cell merging method in practical applications, such as Figure 3-a , Figure 3-b as well as Figure 4-a-Figure 4-e Shown include:

[0194] It should be noted that Embodiment 3 aims to provide a method for merging virtual cells to be applied under the same-frequency condition of ultra-dense C-RAN downlink multi-antenna RRH (the RRH in the embodiment uses 2 transmit antennas and the user has a single antenna). It solves the problem of converting the interference between virtual cells into multi-user interference in the virtual cell under the condition of unified frequency reuse, combined with the layered precoding algorithm, to improve the average user spectral efficiency and the user rate of the entire network.

[0195] Step S1, according to the RSRP threshold, an initial virtual cell centered on the user is formed.

[0196] It should be noted that, in actual application, step S1...

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Abstract

The embodiment of the invention provides a method and device for merging virtual cells and a network system, relates to the technical field of network communication, and solves a problem that in the prior art, strong interference can be generated among overlapped virtual cells, so that a rate of signal transmission between a RRH (Remote Radio Head) and a user is reduced to cause low rates of usersin the whole network. The method comprises the steps of: partitioning an overlapping region in a preset region, which consists of at least two virtual cells Cell; and when a first virtual cell Cell-1and a second virtual cell Cell-2 in the overlapping region meet a merging condition, merging the first virtual cell Cell-1 and the second virtual cell Cell-2 in the overlapping region, which meet themerging condition, into a new virtual cell Mu-Cell. The embodiment of the invention is used for providing an overlapped virtual cell merging method.

Description

technical field [0001] The present invention relates to the technical field of network communication, in particular to a virtual cell merging method, device and network system. Background technique [0002] Facing the demand for data traffic that will increase by thousands of times in 2020 and in the future, the fifth-generation mobile communication technology (English full name: 5th-Generation, abbreviation: 5G) system will be built on large-scale antennas, ultra-dense networking, and full-spectrum access. In the high-capacity hotspot scenario, the system capacity is increased by increasing the number of low-power nodes, so that the density of low-power nodes may reach ten times or even higher than the current deployment density of base stations, thus forming an ultra-dense network. network. [0003] In order to reduce the interference between communication cells under an ultra-dense deployment network, this problem can be solved by user-centered virtualized cell technolog...

Claims

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Application Information

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IPC IPC(8): H04W16/18H04W24/02
CPCH04W16/18H04W24/02
Inventor 刘珊刘琪陈露夏海轮陈祎
Owner CHINA UNITED NETWORK COMM GRP CO LTD
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