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User terminal access method and device for time-division-synchronization code multi-address system

A technology for synchronous code division multiple access and user terminals, which is applied in the field of user terminal access methods and devices, and can solve the problem of inability to quickly determine the processing strategy, inability to know the type of user terminal services in a timely manner, and inability to quickly complete the follow-up processing process, etc. Questions, to achieve the effect of enriching the priority level

Inactive Publication Date: 2008-04-30
CHINA ACAD OF TELECOMM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the prior art, the network side cannot timely know the type of service requested by the currently accessed user terminal, and cannot quickly determine the processing strategy to be adopted, so that the subsequent processing process cannot be quickly completed; moreover, high priority cannot be guaranteed Users or important users access the system with high access probability

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  • User terminal access method and device for time-division-synchronization code multi-address system
  • User terminal access method and device for time-division-synchronization code multi-address system
  • User terminal access method and device for time-division-synchronization code multi-address system

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Embodiment Construction

[0022] The main idea of ​​the present invention is: divide one or more functional domains for different services, and assign SYNC_UL codes to different functional domains; when user terminals access, select corresponding The SYNC_UL code performs uplink synchronization.

[0023] Correspondingly, the network side may adopt different policies to process the received SYNC_UL codes corresponding to different functional domains. For example: in the message trunking mode of TD-SCDMA digital trunking, by dividing the SYNC_UL code into different functional domains, the network can distinguish between the scheduling call control channel reservation request and the dedicated service channel reservation request, ensuring that the half-duplex scheduling call has a faster Access speed and speaking right switching speed.

[0024] In addition, the present invention also sets the access priority of random access, and associates the division of the set access priority with the sequence number...

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Abstract

The invention discloses an access method of a user terminal in a time division-synchronous-code division multiple access (TD-SDMA) system, which includes the steps of: dividing one or more functional domain(s) for different services, and distributing uplink synchronous codes to different functional domains; determining the functional domain according to the required service when the user terminal is accessed to the system; selecting and uplink synchronizing one of the unlink synchronous codes corresponding with the determined functional domain. The invention also discloses the user terminal and a network side device, which can make a network side capable of knowing service type required by the user terminal in the process of uplink synchronous process. In addition, the system can ensure the high access rate to the system for high preferential users or VIPs.

Description

technical field [0001] The invention relates to time division-synchronous code division multiple access (TD-SCDMA) technology, in particular to a user terminal access method and device in the TD-SCDMA system. Background technique [0002] In the commonly used TD-SCDMA system, 32 downlink synchronization (SYNC_DL) codes and 256 uplink synchronization (SYNC_UL) codes are defined, and each SYNC_DL code corresponds to 8 uplink synchronization (SYNC_UL) codes. Generally, each cell is assigned a SYNC_DL code, adjacent cells use different SYNC_DL codes, and SYNC_DL codes of non-adjacent cells can be multiplexed. In practical applications, the TD-SCDMA system can also adopt other definition methods as needed, for example: define 16 SYNC_DL codes, each cell is assigned a SYNC_DL code, and each SYNC_DL code corresponds to 16 SYNC_UL codes. [0003] For access services, the TD-SCDMA system has 8 access service classes (ASCs), and each ASC can correspond to some or all of the 8 SYNC_UL...

Claims

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Application Information

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IPC IPC(8): H04B7/26H04B1/707H04W74/08
Inventor 裴小东苏东升王玲乔元新吴建峰孙建勋
Owner CHINA ACAD OF TELECOMM TECH