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A multi-carrier based public physical channel assignment method

A technology of physical channels and allocation methods, applied in the field of multi-carrier-based public physical channel allocation, can solve problems such as difficult access, complicated UE measurement, and access conflicts in dense user areas.

Inactive Publication Date: 2006-01-18
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] The technical problem to be solved by the present invention is to provide a multi-carrier-based public physical channel allocation method to overcome the problems of coverage, system capacity and reliability of the multi-carrier-based TD-SCDMA communication system
[0011] The present invention further provides a method for allocating public physical channels based on multi-carriers, which solves the problems of difficult cell search, complicated UE measurement, and handover difficulties when the user terminal UE is at the cell handover point, and improves system efficiency
[0012] The present invention further provides a method for allocating public physical channels based on multi-carriers, which solves the problem of easy access conflict or difficult access in user-intensive areas

Method used

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  • A multi-carrier based public physical channel assignment method
  • A multi-carrier based public physical channel assignment method
  • A multi-carrier based public physical channel assignment method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0089] Embodiment 1, for the case where Node B / UE only has the ability to process one carrier:

[0090] Since the Node B / UE can only process one carrier at the same time, the common physical channels are configured on the first primary carrier.

[0091] For P-CCPCH, its configuration method is as follows:

[0092] 1) P-CCPCH is configured on the first two code channels of TS0 of the first main carrier;

[0093] 2) The channelization codes of P-CCPCH1 and P-CCPCH2 are c Q＝16 (k＝1) and c Q＝16 (k＝2) ;

[0094] 3) Training sequence m in TS0 (1) and m (2) Allocated to P-CCPCH to support transmit diversity and beacon functions;

[0095] 4) adopt the fixed spread spectrum method of spreading factor SF=16;

[0096] 5) Full cell coverage mode, without beamforming.

[0097] For S-CCPCH, its configuration method is as follows:

[0098] 1) S-CCPCH is configured on TS0 of the first primary carrier;

[0099] 2) Adopting a fixed spread spectrum method with a spreading factor SF=1...

Embodiment 2

[0130] Embodiment 2, for the situation that Node B / UE has the ability to process two carriers simultaneously:

[0131] Because the Node B / UE can handle two carriers at the same time, there is a certain flexibility in the configuration of the common physical channel.

[0132] For P-CCPCH, its configuration method is as follows:

[0133] 1) P-CCPCH is configured on the first two code channels of TS0 of the first main carrier;

[0134] 2) The channelization codes of P-CCPCH1 and P-CCPCH2 are c Q＝16 (k＝1) and c Q＝16 (k＝2) ;

[0135] 3) Training sequence m in TS0 (1) and m (2) Allocated to P-CCPCH to support transmit diversity and beacon functions;

[0136] 4) adopt the fixed spread spectrum method of spreading factor SF=16;

[0137] 5) Full cell coverage mode, without beamforming.

[0138] For S-CCPCH, its configuration method is as follows:

[0139] 1) The S-CCPCH is configured on the TS0 of the first main carrier or the second main carrier;

[0140] 2) Adopting a fix...

Embodiment 3

[0176] Embodiment 3, for the situation that the Node B / UE has the ability to simultaneously process multiple (three or more) carriers:

[0177] Although the Node B / UE can process three or more carriers at the same time, the common physical channel configuration is still the same as that of the Node B / UE having the ability to process two carriers at the same time.

[0178] For P-CCPCH, its configuration method is as follows:

[0179] 1) P-CCPCH is configured on the first two code channels of TS0 of the first main carrier;

[0180] 2) The channelization codes of P-CCPCH1 and P-CCPCH2 are c Q＝16 (k＝1) and c Q＝16 (k＝2) ;

[0181] 3) Training sequence m in TS0 (1) and m (2) Allocated to P-CCPCH to support transmit diversity and beacon functions;

[0182] 4) adopt the fixed spread spectrum method of spreading factor SF=16;

[0183] 5) Full cell coverage mode, without beamforming.

[0184] For S-CCPCH, its configuration method is as follows:

[0185] 1) The S-CCPCH is config...

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Abstract

This invention relates to a common physics signal channel distributing method based on multicarrier, which comprises the following steps: a) for every small area or sector, making sure one carrier wave as the first main carrier wave from the distributed N carrier waves, making sure another carrier wave as the second main carrier wave, the rest are assistant carrier waves, wherein one can be the alternate assistant carrier wave of the first or second main carrier wave; b) in the same small area or sector, the first and second main carrier wave, combined with the assistant carrier wave use the same interference code and the base train sequence; c) allocating the common physics signal channel in the first or second main carrier wave. Said method can overcome the disadvantages of TD-SCDMA communication system.

Description

technical field [0001] The invention relates to a public physical channel allocation method of a wireless communication system, in particular to a multi-carrier-based public physical channel allocation method in a TD-SCDMA communication system. Background technique [0002] The current TD-SCDMA (Time Division-Synchronous Code Division Multiple Access, or LCR TDD) standard does not consider multi-carrier characteristics, and the allocation scheme for TD-SCDMA public physical channels is mainly included in the following 3GPP protocol standards: [0003] (1) 3GPP TS 25.221: "Physical channels and mapping of transport channels on to physical channels (TDD)" [0004] (2) 3GPP TS 25.222: "Multiplexing and channel coding (TDD)" [0005] (3) 3GPP TS 25.223: "Spreading and modulation (TDD)" [0006] (4) 3GPP TS 25.224: "Physical Layer Procedures (TDD)" [0007] (5) 3GPP TS 25.331: "Radio Resource Control (RRC)" [0008] Through the analysis, it can be seen that the operation and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B7/26H04B1/69H04L27/26H04L5/00
Inventor 秦洪峰
Owner ZTE CORP
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