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Method for identifying different service random access in time-division synchronous CDMA system

A technology of random access and code division multiple access, applied in the field of wireless communication, can solve the problem of different processing

Inactive Publication Date: 2010-04-14
石秀芹
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since various random access methods are processed differently on the network side, Node B on the network side needs to identify different services when receiving information on the random access channel, and there is currently no effective method

Method used

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  • Method for identifying different service random access in time-division synchronous CDMA system
  • Method for identifying different service random access in time-division synchronous CDMA system
  • Method for identifying different service random access in time-division synchronous CDMA system

Examples

Experimental program
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Embodiment Construction

[0056] The following uses HSUPA access as an example for description.

[0057] Step 1: The network side divides the UpPCH sub-channels in the cell for accessing different services; when configuring the random access resources of the Node B, the relationship between the PRACH and the FPACH is clarified, and it is related to the system information SIB5 / SIB6 The configuration of the random access resources in the network is consistent; the UpPCH sub-channels used for different service accesses are specified during the process of cell establishment and cell reconfiguration for the Node B.

[0058] The number of sub-channels divided by the cell is configured by the high-level network, which can be 1, 2, 4, or 8. When the network side determines the number of sub-channels, it should depend on the business model in the current network. When the number of users is large, the divided The number of sub-channels can be larger, which can avoid conflicts to a certain extent. In the presen...

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Abstract

The invention relates to a recognized method for random accessing of time synchronous code multi-address system. In the invention, when the network distributes the random accessing channel source, itdistinguishes the random access of different business by the sub-channel of ascending pilot channel, and the ascending channel of the random access of different service is different. The node B in thenetwork detects synchronous code, it sends the confirmation messages via the fast physical access channel, and records the number of physical access channel, the number of sub-frame of system, and the number of ascending sub-channel. When terminal accesses via the random access channel, the node B finds the synchronous record, and it can know the accessing type from the information of sub-channelthat is convenient to do different process. The invention avoids the upgrade of soft / hardware, saves the system source, and achieves great backward compatibility at the same time.

Description

technical field [0001] The invention relates to the field of wireless communication, in particular to an identification method for random access of different services in TD-SCDMA. Background technique [0002] TD-SCDMA technology is one of the main technologies of the third-generation mobile communication system defined by 3GPP. TD-SCDMA has formulated a set of random access procedures for terminal access. This procedure is based on the establishment of uplink synchronization. The terminal and the network side The MAC-c / sh (common shared medium access control) entity and the physical layer cooperate to complete the random access through the uplink pilot channel UpPCH, fast physical access channel FPACH, random access transport channel RACH, and random access physical channel PRACH access. RACH and PRACH are the only random access transmission channel and physical channel resources in the current TD-SCDMA system, and the PRACH physical channel carries the RACH transmission c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W48/10H04W74/08H04W92/12
Inventor 陈慧张银成马志锋
Owner 石秀芹
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