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Network connecting control technology in CDMA system

A network access and access controller technology, applied in access restrictions, transmission systems, network topology, etc., can solve problems such as heavy instantaneous loads, and achieve the effect of congestion and network load reduction

Inactive Publication Date: 2004-01-21
NEC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] As mentioned above, when a CDMA terminal starts network access in a CDMA system, the probability of a heavy momentary load on the network may be higher than in a TDMA system

Method used

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  • Network connecting control technology in CDMA system
  • Network connecting control technology in CDMA system
  • Network connecting control technology in CDMA system

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0028] Referring to FIG. 2A, the CDMA wireless access control node 200 according to the first embodiment of the present invention has a hardware structure, and the hardware structure includes a state management table 210, a program-controlled processor 211, a program memory 212, wireless system hardware 213 , and wired system hardware 214 . According to the present embodiment, the program memory 212 stores an access control program, and the access control program runs on the program-controlled processor 211 to implement network access control operations. The state management table 210 can be created in a random access memory (not shown) in the CDMA radio access control node 200 .

[0029] Referring to Figure-2B, the state management table 210 manages the received access requests of users whose wireless / wired resource setting operations have not been completed, in other words, the above request primitives have been sent but not yet received. to the primitive of the response. ...

no. 2 example

[0051] According to a second embodiment of the present invention, access control is implemented by using priorities previously assigned to individual CDMA wireless terminals.

[0052] Referring to Fig.-5A, 5C, a CDMA radio access control node 200 according to the second embodiment of the present invention includes a state management table 220, which manages received access start requests while viewing their priorities.

[0053] In the present embodiment, the state management table 220 may contain a predetermined number of items, which is the maximum number of simultaneously operable primitives as in the case of the first embodiment. Each item in the status management table 220 includes a user identifier and its priority. As shown in Figure-5A, user terminal A is assigned a priority of 3, user terminal B is assigned a priority of 2, which is higher than priority 3, and so on. In this example, user terminal D is assigned the highest priority of 1 and user terminals F and H are ...

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Abstract

A network access control is performed by using a status management table having a maximum permissible number of entries, which is determined depending on a time-out period predetermined by user terminals and a hardware-setting time required for setting communication resource. When receiving an access start request received from a user terminal, it is determined whether the hardware setting corresponding to the access start request is estimated to be completed within the time-out period. If it is estimated to be completed, the received access start request is registered into the status management table to issue a hardware setting command. If it is estimated not to be completed, an access rejection message is sent back to the user terminal.

Description

technical field [0001] The present invention relates to a network access control method and device in a code division multiple access (CDMA) system, wherein a plurality of wireless terminals are allowed to access the CDMA mobile communication network simultaneously. Background technique [0002] In principle, CDMA is not a time-based access system like Time Division Multiple Access (TDMA). Therefore, the CDMA system allows multiple CDMA terminals to simultaneously send different network access requests to the network on a common channel. Even though different network access requests have been received simultaneously, they can still reach the network with a higher or lower probability of collision in the radio segment. [0003] However, in a CDMA system, compared to a TDMA system, it is conceivable that momentary processing congestion is likely to occur on the network side. More specifically, wireless system / wired system hardware setup is required for every network access r...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/28H04W28/02H04W36/16H04W48/06H04W74/08H04W76/02H04W84/12
CPCH04W28/02H04W36/16H04W48/06
Inventor K·中安
Owner NEC CORP