CN101500225B - Terminal access method and system - Google Patents
Terminal access method and system Download PDFInfo
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- CN101500225B CN101500225B CN200810006100XA CN200810006100A CN101500225B CN 101500225 B CN101500225 B CN 101500225B CN 200810006100X A CN200810006100X A CN 200810006100XA CN 200810006100 A CN200810006100 A CN 200810006100A CN 101500225 B CN101500225 B CN 101500225B
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- base station
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- sequence number
- long code
- code mask
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Abstract
The invention discloses a terminal access method and a corresponding system, wherein, the method includes the following steps: a terminal sends an access request message to a base station; once the base station judges that the base station supporting the terminal distributes a public long code and mask (PLCM) to the terminal according to the access request message, the base station generates the PLCM distributed to the terminal; the base station utilizes the PLCM to establish a traffic channel with the terminal and informs the terminal of the PLCM; and the terminal utilizes the PLCM to get access to the base station through the traffic channel. By the invention, the terminal supporting the mobile terminal identification can get access to the base station, thus being capable of avoiding the impact on the core network which is caused by that the terminal is identified by the mobile terminal identification.
Description
Technical field
The present invention relates to the communications field, relate more specifically to a kind of terminal access method and system.
Background technology
2006, the Electronic Serial Number of portable terminal (Electronic Serial Number is called for short ESN) resource began in short supply, and this problem is recognized in a lot of equipment manufacturers and operation commercial city, need seek new mobile terminal identification mode.Mobile terminal identification (MobileStation Equipment Identifier, be called for short MEID) be that code division multiple access (CDMA) 2000 discharges a kind of new identification method that (Release) D proposes, each device fabrication commercial city tends to use this sign to substitute ESN at present.
Pseudo-ESN (pESN) is the 32 bit mobile terminal identification that the MEID from 56 bits generates by special algorithm, can solve the problem that former ESN uses up, the vendor code of pESN (most-significant byte) is fixed as 0x80, and low 24 are adopted the SHA-1 hash algorithm of 56 bit MEID to calculate, and its structure is identical with ESN.
For the terminal of supporting MEID, adopt pESN to replace ESN to have following defective: once repeating will appear in 24 a powers pESN of per 2.The Traffic Channel long code that the problem that repeats to bring of pESN is the user might repeat.
The reverse link physical channel of CDMA2000 system is distinguished with long code, the Long Code Mask of public reverse chain channel is by base station system (Base Station System, abbreviation BSS) system parameters is determined, and the Long Code Mask of user's Traffic Channel (is a Public Long Code Mask, Public Long Code Mask is called for short PLCM)) then the ESN information by portable terminal generate and identify.The flow process that the PLCM that uses ESN to generate sets up Traffic Channel as shown in Figure 1.Like this, using pESN to replace might making the conflict of Traffic Channel Long Code Mask under the situation of ESN, the phenomenon of cross-talk appears.
3GPP2 C.S0072 version 1.0 " being used for CDMA2000 spread spectrum system revision 0 " (Version 1.0 " Mobile Station Equipment Identifier (MEID) Supportfor cdma2000 Spread Spectrum Systems Revision 0 ") is pointed out, when terminal is supported MEID, the Traffic Channel Long Code Mask can be specified by the base station, and generating algorithm is determined by the base station.Therefore, specify PLCM, can solve the PLCM conflict that the pESN conflict causes by the base station.But, also do not exist at present and utilize MEID to carry out the method that terminal inserts.
Summary of the invention
The invention provides a kind of terminal access method and system,, thereby avoid terminal being identified the influence that causes core-network side with mobile terminal identification with the successful access base station of terminal of realizing the support mobile terminal identification.
Terminal access method according to the embodiment of the invention may further comprise the steps: terminal sends to the base station and inserts request message; The base station is generated as the Public Long Code Mask of terminal distribution judging that according to inserting request message terminal support base station is under the situation of terminal distribution Public Long Code Mask; The base station utilizes the Traffic Channel between Public Long Code Mask foundation and the terminal, and Public Long Code Mask is notified to terminal; And terminal is utilized Public Long Code Mask, and by the Traffic Channel access base station.
Wherein, the sequence number, its sequence number for the call treatment veneer module of terminal distribution, call treatment veneer module that the base station utilizes himself is the sequence number of the sequence number of the call proceeding of terminal distribution and the mobile switching centre that is connected with terminal, generation Public Long Code Mask.
Wherein, the base station by the sequence number of the sequence number of the sequence number of the sequence number of base station, call treatment veneer module that the base station is terminal distribution, call proceeding that call treatment veneer module is terminal distribution and the mobile switching centre that is connected with the base station is carried out with or operation, generate Public Long Code Mask.
Wherein, the base station judges by judging whether and can identifying terminal by mobile terminal identification whether terminal supports that the base station is the terminal distribution Public Long Code Mask.Wherein, the base station judges whether and can identify terminal by mobile terminal identification according to the specific fields that inserts in the request message.
Terminal connecting system according to the embodiment of the invention comprises: insert request unit, be positioned at end side, be used for sending the access request message to the base station; The mask generation unit is positioned at base station side, is used for being generated as the Public Long Code Mask of terminal distribution judging that according to inserting request message terminal support base station is under the situation of terminal distribution Public Long Code Mask; Channel is set up the unit, is positioned at base station side, is used to utilize Public Long Code Mask to set up Traffic Channel between base station and the terminal, and Public Long Code Mask is notified to terminal; And the access performance element, be positioned at end side, be used to utilize Public Long Code Mask, by Traffic Channel with base station access by terminal.
Wherein, the mask generation unit utilizes the sequence number, base station of base station for the sequence number of the call treatment veneer module of terminal distribution, the call treatment veneer module sequence number for the sequence number of the call proceeding of terminal distribution and the mobile switching centre that is connected with the base station, generates Public Long Code Mask.
Wherein, the mask generation unit by the sequence number of the sequence number of the sequence number of the sequence number of base station, call treatment veneer module that the base station is terminal distribution, call proceeding that call treatment veneer module is terminal distribution and the mobile switching centre that is connected with the base station is carried out with or operation, generate Public Long Code Mask.
Wherein, the mask generation unit judges by judging whether and can identifying terminal by mobile terminal identification whether terminal supports that the base station is the terminal distribution Public Long Code Mask.Wherein, the mask generation unit judges whether and can identify terminal by mobile terminal identification according to the specific fields that inserts in the request message.
By the present invention, can realize supporting the terminal success access base station of mobile terminal identification, thereby can avoid terminal being identified core-network side is impacted with mobile terminal identification.
Description of drawings
Accompanying drawing described herein is used to provide further understanding of the present invention, constitutes the application's a part, and illustrative examples of the present invention and explanation thereof are used to explain the present invention, do not constitute improper qualification of the present invention.In the accompanying drawings:
Fig. 1 is the flow chart of the terminal access method of PLCM when being generated by ESN;
Fig. 2 is that the structure of 42 bit PLCM of base station assigns is formed schematic diagram; And
Fig. 3 is the flow chart of PLCM according to the embodiment of the invention terminal access method during by base station assigns; And
Fig. 4 is the block diagram according to the terminal connecting system of the embodiment of the invention.
Embodiment
The present invention aims to provide a kind of Public Long Code Mask that utilizes base station assigns and realizes the method and system that terminal inserts, under the unique condition, to realize the successful access of terminal at the PLCM that guarantees to distribute to terminal in the same network segment.
Wherein, PLCM is 42 bits, and 3GPP2 C.S0072 agreement is defined under the situation of base station assigns, and preceding 5 bits are fixed as 10100, and remainder is generated by the special algorithm of base station.In the present invention, use various system informations to generate PLCM, guarantee unique in the network segment (as shown in Figure 2) according to the formation of the PLCM of the embodiment of the invention with this.
Wherein, the uniqueness of PLCM is that following characteristic by each component guarantees: a) mobile switching centre's (Mobile Switching Center is called for short MSC) sequence number is distinguished different MSC; B) the BSS sequence number is unique under same MSC; C) call treatment veneer module No. is unique in same BSS; D) call proceeding number is unique in the veneer module is handled in same call; And e) call proceeding is number corresponding one by one with the user who is in conversation state.
Like this, as long as guarantee the sequence number difference of each MSC, just can guarantee that the employed 42 bit PLCM of all users that are in conversation state have nothing in common with each other.And the MSC sequence number of same manufacturer in consolidated network is different.
Wherein, four shared bit number distribution of formation element can be different owing to the difference of system, depend on network element and processor quantity and processor ability.But, roughly can distribute by the scheme of describing among Fig. 2 for general communication system.Base station system get access to these four constitute elements after, carry out a series of with or operation, can generate 42 bit PLCM.
This PLCM generation method can guarantee that PLCM is definitely unique in the same sub-district, but the intersection for two sub-districts can not guarantee definitely unique, because if two sub-districts of adjacency belong to the network of different vendor's equipment framework respectively, then different vendor has different base stations to specify the PLCM method.In this case, any method all can't guarantee definitely unique.But the probability that repeats is very little, and still can distinguish user traffic channel by additive method between the sub-district of the adjacency of CDMA 2000 systems, such as frequency.Therefore this special circumstances is definitely not unique, does not influence this method and comes into operation.
Aspect formation condition and opportunity and whole access process, describe the present invention below.
1. the base station will be formation condition and the opportunity of the PLCM of terminal distribution.
For the general portable terminal of not supporting MEID, base station system will not specified self-defined PLCM, and be to use original ESN mode to generate PLCM, otherwise then use self-defining PLCM.Base station system judges according to the regulation field in the agreement whether portable terminal supports MEID.Point out among the 3GPP2 C.S0072 that interface inserts in the message aloft, travelling carriage class mask (Station Class Mask) field can be described mobile terminal style:
The bit of Station Class Mask is formed table
| Function (function) | Bit (bit) | Be provided with (setting) |
| Expansion travelling carriage class mask identifier (Extended SCM Indicator) | 7 | Band class 1.4 1XXXXXXX (Band Classes 1.4) other frequency bands 0XXXXXXX (Other bands) |
| Double mode | 6 | The double mode X1XXXXXX of CDMA X0XXXXXX only |
| Time slot type (Slotted Class) | 5 | Non-slotted mode XX0XXXXX (Non-Slotted) slotted mode XX1XXXXX (Slotted) |
| MEID supports designator | 4 | Do not support MEID XXX0XXXX (MEID not configured) to support MEID XXX1XXXX (MEID configured) |
| The 25MHz bandwidth | 3 | 1 XXXX1XXX always |
| Transmission | 2 | The continuous discontinuous XXXXX1XX of XXXXX0XX |
| Frequency band 0 simulation behaviour | 1-0 | Grade I XXXXXX00 |
| Power class (Power class for Band Class 0 Analog Operation) under doing | Grade II XXXXXX01 grade III XXXXXX10 grade IV XXXXXX11 |
As shown in Table, in the Station of 8 bits Class Mask, bit (4) is MEIDsupport indicator, and whether the expression terminal supports MEID.Support the terminal of MEID this bit to be changed to 1, otherwise be changed to 0 by air-interface standard.
Base station system receive air interface insert message after, send set up the Traffic Channel instruction message before, can judge this MEID sign bit, if 0, then carry out terminal and insert by common flow process; If 1, then to utilize said method to generate the base station earlier, and then carry out the foundation of Traffic Channel the PLCM that distributes.
2.MEID the access process of terminal
Support the access process of MEID terminal to be undertaken, as shown in Figure 3, specifically may further comprise the steps by 3GPP2 C.S0072 standard:
S302, base station system receives supports the air interface of MEID terminal oppositely to insert message, and sends service request to MSC.
S304, base station controller (Base Station Controller, abbreviation BSC) judges whether the bit (4) in the Station Class Mask field in the air interface access message is 1, if 1, then generate the base station as stated above with the PLCM that distributes.
S306, BSC send to base station transceiver (Base Transceiver System is called for short BTS) and set up the forward traffic channel instruction, the PLCM that notifies BTS will use base station assigns simultaneously, and a PLCM who generates sends to BTS as one of message parameter.
S308, BTS judge that this access will use the PLCM of base station assigns, and the PLCM that sends according to BSC sets up BTS side business channel, notice BSC after finishing.
S310, after BSC receives the service provisioning message that MSC sends, send Extended Channel Assignment Message (MEIDECAM) message of supporting MEID to portable terminal by the BTS public control channel, the PLCM that the notice terminal will use BSC to generate in the message sends to portable terminal with PLCM as one of message parameter simultaneously.
S312, with S310 once scheduling together, BSC uses the PLCM of base station appointment when setting up BSC side business channel.
S314, portable terminal carry out Traffic Channel with BTS, BSC and are connected, and this Traffic Channel has been used the PLCM of common base station assigns.BSC sends assignment to MSC and finishes message afterwards.
S316, the portable terminal access process is finished.
In said method, the PLCM of base station assigns is successfully applied to the CDMA2000 base station system in the access procedure of supporting the MEID terminal, and in access procedure, shielded the influence of new mobile terminal identification MEID to core net (Core Network is called for short CN) side.
Fig. 4 is the block diagram according to the terminal connecting system of the embodiment of the invention.As shown in Figure 4, this terminal connecting system comprises: insert request unit 402, be positioned at end side, be used for sending the access request message to the base station; Mask generation unit 404 is positioned at base station side, is used for judging according to inserting request message whether terminal supports that the base station is the terminal distribution Public Long Code Mask, and is under the situation that is in judged result, is generated as the Public Long Code Mask of terminal distribution; Channel is set up unit 406, is positioned at base station side, is used to utilize Public Long Code Mask to set up Traffic Channel between base station and the terminal, and Public Long Code Mask is notified to terminal; And insert performance element 408, be positioned at end side, be used to utilize Public Long Code Mask, by Traffic Channel with base station access by terminal.
Wherein, the mask generation unit utilizes the sequence number, base station of base station for the sequence number of the call treatment veneer module of terminal distribution, the call treatment veneer module sequence number for the sequence number of the call proceeding of terminal distribution and the mobile switching centre that is connected with the base station, generates Public Long Code Mask.
Wherein, the mask generation unit by the sequence number of the sequence number of the sequence number of the sequence number of base station, call treatment veneer module that the base station is terminal distribution, call proceeding that call treatment veneer module is terminal distribution and the mobile switching centre that is connected with the base station is carried out with or operation, generate Public Long Code Mask.
Wherein, the mask generation unit judges by judging whether and can identifying terminal by mobile terminal identification whether terminal supports that the base station is the terminal distribution Public Long Code Mask.Wherein, the mask generation unit judges whether and can identify terminal by mobile terminal identification according to the specific fields that inserts in the request message.
The above is embodiments of the invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within the claim scope of the present invention.
Claims (8)
1. a terminal access method is characterized in that, may further comprise the steps:
Terminal sends to the base station and inserts request message;
Described base station is judging that according to described access request message described terminal supports that described base station is under the situation of described terminal distribution Public Long Code Mask, be generated as the Public Long Code Mask of described terminal distribution, wherein, it is the sequence number of the sequence number of the sequence number of the call treatment veneer module of described terminal distribution, the described call treatment veneer module call proceeding that is described terminal distribution and the mobile switching centre that is connected with described base station that described base station utilizes the sequence number of described base station, described base station, generates described Public Long Code Mask;
Described base station utilizes the Traffic Channel between described Public Long Code Mask foundation and the described terminal, and described Public Long Code Mask is notified to described terminal; And described terminal is utilized described Public Long Code Mask and is inserted described base station by described Traffic Channel.
2. terminal access method according to claim 1, it is characterized in that, described base station by to the sequence number of described base station, described base station be the sequence number of the sequence number of the sequence number of the call treatment veneer module of described terminal distribution, the described call treatment veneer module call proceeding that is described terminal distribution and the mobile switching centre that is connected with described base station carry out with or operation, generate described Public Long Code Mask.
3. terminal access method according to claim 1 and 2, it is characterized in that, described base station judges by judging whether and can identifying described terminal by mobile terminal identification whether described terminal supports that described base station is described terminal distribution Public Long Code Mask.
4. terminal access method according to claim 3 is characterized in that, described base station judges whether and can identify described terminal by described mobile terminal identification according to the specific fields in the described access request message.
5. a terminal connecting system is characterized in that, comprising:
Insert request unit, be positioned at end side, be used for sending the access request message to the base station;
The mask generation unit, be positioned at described base station side, be used for judging that according to described access request message described terminal supports that described base station is under the situation of described terminal distribution Public Long Code Mask, be generated as the Public Long Code Mask of described terminal distribution, wherein, described mask generation unit utilizes the sequence number of described base station, described base station is the sequence number of the call treatment veneer module of described terminal distribution, described call treatment veneer module is the sequence number of the call proceeding of described terminal distribution, and the sequence number of the mobile switching centre that is connected with described base station, generate described Public Long Code Mask;
Channel is set up the unit, is positioned at described base station side, is used to utilize described Public Long Code Mask to set up Traffic Channel between described base station and the described terminal, and described Public Long Code Mask is notified to described terminal; And
Insert performance element, be positioned at described end side, be used to utilize described Public Long Code Mask and described terminal inserted described base station by described Traffic Channel.
6. terminal connecting system according to claim 5, it is characterized in that, described mask generation unit by to the sequence number of described base station, described base station be the sequence number of the sequence number of the sequence number of the call treatment veneer module of described terminal distribution, the described call treatment veneer module call proceeding that is described terminal distribution and the mobile switching centre that is connected with described base station carry out with or operation, generate described Public Long Code Mask.
7. according to claim 5 or 6 described terminal connecting systems, it is characterized in that, described mask generation unit judges by judging whether and can identifying described terminal by mobile terminal identification whether described terminal supports that described base station is described terminal distribution Public Long Code Mask.
8. terminal connecting system according to claim 7 is characterized in that, described mask generation unit judges whether and can identify described terminal by described mobile terminal identification according to the specific fields in the described access request message.
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| CN200810006100XA CN101500225B (en) | 2008-02-01 | 2008-02-01 | Terminal access method and system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN200810006100XA CN101500225B (en) | 2008-02-01 | 2008-02-01 | Terminal access method and system |
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| CN101500225A CN101500225A (en) | 2009-08-05 |
| CN101500225B true CN101500225B (en) | 2011-05-25 |
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| CN101790131B (en) * | 2010-02-11 | 2014-04-30 | 中兴通讯股份有限公司 | MEID supporting method and system for digital trunk terminal |
| CN102026167B (en) * | 2010-09-29 | 2013-11-20 | 新邮通信设备有限公司 | Automatic adjacent area association method of wireless communication system heterogeneous network |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1972498A (en) * | 2005-11-24 | 2007-05-30 | 中兴通讯股份有限公司 | A method for implementing multi access channel in HRPD communication system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1972498A (en) * | 2005-11-24 | 2007-05-30 | 中兴通讯股份有限公司 | A method for implementing multi access channel in HRPD communication system |
Non-Patent Citations (1)
| Title |
|---|
| 3RD GENERATION PARTNERSHIP PROJECT 2 3GPP2.Mobile Station Equipment Identifier (MEID) Support for cdma2000 Spread Spectrum Systems.3GPP.3GPP2 C.S0072 Version 1.0,2005,全文. * |
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