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Base station and user terminal multi-cell implement method and apparatus

An implementation method and user terminal technology, applied in the field of multi-cell implementation of base stations and user terminals, can solve problems such as the reduction of UE data transmission efficiency, reduce the impact of system throughput and user experience, ensure continuous transmission, and avoid data transmission. rate reduction effect

Inactive Publication Date: 2015-09-02
POTEVIO INFORMATION TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention provides a method and device for realizing multiple cells of a base station and a user terminal, so as to solve the technical problem in the prior art that the UE data transmission efficiency is reduced due to frequent switching between small cells

Method used

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  • Base station and user terminal multi-cell implement method and apparatus
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  • Base station and user terminal multi-cell implement method and apparatus

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Embodiment 1

[0093] Embodiment 1 of the present invention is a method for realizing base station virtual multi-cell. For specific steps, see image 3 .

[0094] Step 301: Determine a non-master base station and a master base station.

[0095] In the embodiment of the present invention, the two adjacent cells A and B both work in TDD-LTE mode and have the same carrier frequency, and the cells A and B have different PCIs, that is, the respective PCIs are PCI-a, PCI-a, and PCI-a respectively. -b. First, a master base station is determined through information exchange between cell A and cell B. In this step, a virtual base station S is introduced as the master base station. The virtual base station S is set on cell A and cell B, and the PCI is PCI-s , PCI-s differs from both PCI-a and PCI-b, see Figure 4 , then cell A and cell B are both non-master base stations at this time.

[0096] In addition, the method of introducing the virtual base station S is not limited to the one in this embod...

Embodiment 2

[0109] Embodiment 2 of the present invention is a method for realizing multiple cells of a base station. For specific steps, see Figure 6 .

[0110] Step 601: Determine a non-master base station and a master base station.

[0111] In Embodiment 2 of the present invention, there are three cells: cell A, cell B, and cell S, all of which work in TDD-LTE mode and have the same carrier frequency, and the PCIs they have are respectively PCI-a, PCI-b, and PCI- s. First of all, through information exchange between the cells, it is determined that cell S is the master base station, and cell A and cell B are non-master base stations. See Figure 7 .

[0112] Step 602: Divide the subframes into master control subframe subsets.

[0113] In this step, all subframes in cell A, cell B, and cell S are Figure 5 The manner shown is divided into two subframe subsets, wherein firstly, the downlink subframe is divided into subsets, and then the uplink subframe is implicitly divided into sub...

Embodiment 3

[0124] Embodiment 3 of the present invention is a method for realizing virtual multi-cell of a user terminal. For specific steps, refer to Figure 8 .

[0125] Step 801: Receive the subframe subset division result of the base station, and divide all subframes into a non-main control subframe subset and a main control subframe subset.

[0126] In this step, the explicit signaling of the base station is received to obtain the subframe division result, and all subframes are divided according to Figure 5 The shown method is divided into two subframe subsets. In the embodiment of the present invention, the first subframe subset is composed of subframe #0 / 1 / 2 / 5 / 6 / 7 of each wireless frame, and PCI1 corresponds to PCI- a or PCI-b, the second subframe subset consists of subframe #3 / 4 / 8 / 9 of each radio frame, and PCI2 corresponds to PCI-s. Therefore, the first subframe subset is a non-main control subframe subset, corresponding to cell A or cell B, where the correspondence depends on...

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Abstract

The invention provides a base station and user terminal multi-cell implement method and apparatus, comprising: determining a non master control base station and a master control base station; dividing all subframes into at least one master control subframe subset which corresponds with the physical cell ID (PCI) of the master control base station; and allowing the master control base station to perform uplink and downlink signal channel transmission with each subscriber terminal on the master control subframe subset according to the PCI of the master control base station. According to the invention, through division of the master control base station and the non master control base station, time delay sensitive operations such as voice can be transmitted through the master control base station, and other operations are transmitted through the non master control base station, thereby avoiding the problems of reduced user equipment (UE) data transfer rate and deteriorated communication quality of time delay sensitive operations caused by frequent switching among cells under the condition of co-frequency cell dense disposition, guaranteeing continuous transmission of the time delay sensitive operations, and reducing influence to system throughput and user experience.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a method and device for realizing multiple cells of a base station and a user terminal. Background technique [0002] In the current Time Division Duplexing Long Term Evolution (TDD-LTE, Time Division Duplexing Long Term Evolution) or Frequency Division Duplexing Long Term Evolution (FDD-LTE, Frequency Division Duplexing Long Term Evolution) system, each cell has a physical cell identity ( PCI, physical cell ID). Physical signals and physical channels sent by each cell, such as primary / secondary synchronization signal (PSS / SSS, primary synchronization signal / secondary synchronization signal), cell-specific reference signal (CRS, cell-specific reference signal) symbol and frequency domain position , the scrambling sequence of the data channel, etc. are all generated based on its own PCI. A user terminal (UE, User Equipment) determines the PCI of the cell by detect...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W72/04H04B7/04
Inventor 陈哲鲁智池连刚
Owner POTEVIO INFORMATION TECH
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