CN101137107A - Method of improving signalling transfer strategy of reverse sharing service channel - Google Patents
Method of improving signalling transfer strategy of reverse sharing service channel Download PDFInfo
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- CN101137107A CN101137107A CNA2006101381468A CN200610138146A CN101137107A CN 101137107 A CN101137107 A CN 101137107A CN A2006101381468 A CNA2006101381468 A CN A2006101381468A CN 200610138146 A CN200610138146 A CN 200610138146A CN 101137107 A CN101137107 A CN 101137107A
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Abstract
This method includes: (1) Increase the range of PR_LENGTH (PL) value to enable the highest successful rate of receiving the backward shared business channel (BSBC) signaling; (2) Set different PL under different fan-load (FL) to keep the optimal BSBC function. This invention raises the successful rate of receiving BSBC signaling, ensures a bigger PL configuration redundancy and can set the suitable PL value from more wireless configuration situations. This invention also enables a more special PL configuration to ensure the BSBC function optimal under different FL.
Description
Technical field
The present invention relates to professional group system GOTA (based on open cluster architecture Global openTrunking architecture is hereinafter to be referred as GOTA), relate in particular to a kind of method of improving signalling transfer strategy of reverse sharing service channel.
Background technology
Present professional group system GOTA supports the conventional group calling business, this business is PoC (Push To Talk, hereinafter to be referred as PTT) expansion of group-calling service, be used to solve the restriction on the former group-calling service air capacity, realize all user's communications in conventional group calling promoter and the group.The Traffic Channel characteristics of conventional group calling are:
1) forward traffic channel in the conventional group calling comprises:
In the group, say that the user shares 1 forward fundamental channel (ForwardFundamental Channel is called for short F_FCH) with listening the user;
In the group, under the identical contained fan, listen the user to share 1 forward complement channel (ForwardSupplemental Channel is called for short F_SCH);
2) reverse traffic channel in the group calling comprises:
Single contained fan is two Reverse Fundamental Channels of configuration (Reverse Fundamental Channel is called for short the RFCH channel) down;
Say that 1 of CU says customer reverse primary channel (be called for short RFCH_T);
In the group, under the identical contained fan, listen the user to share 1 tin of customer reverse primary channel (being called for short RFCH_L) in addition.
In the former conventional group calling business, oppositely the transmission strategy of shared service channel signaling is as follows:
1) terminal receives broadcast channel assigned message (the Broadcast ChannelAssignment Message that send the base station, hereinafter to be referred as BCAM), PTT system parameters message (PTT SystemParameter Message) and Neighboring Cell List message (Neighbor Channel AssignmentMessage is hereinafter to be referred as NCAM).Have the PR_LENGTH field in these three message, length is 2 bits, and the span that the backstage is provided with is 0～2, the length of expression reverse traffic channel signaling prefix.
2) terminal sends reverse traffic channel signaling prefix according to the length of PR_LENGTH+1 frame, and then sends the reverse traffic channel signaling.
3) searcher of base station side is searched for reverse shared service channel signaling prefix.The value of PR_LENGTH is big more, it is just few more that searcher searches the search capability that reverse signal need consume, like this, and under the certain situation of the search capability of searcher, increase the value of PR_LENGTH, can improve the reception success rate of the reverse shared service channel signaling of base station side.If but PR_LENGTH is excessive, the time that sends reverse shared service channel signaling prefix is elongated, like this, when a plurality of users send the signaling prefix simultaneously on reverse shared service channel, just increase the probability of collision, reduced the reception success rate of reverse shared service channel signaling so on the contrary again.So PR_LENGTH must be arranged on a suitable value.
4) under the same base station controller (Base Station Control is hereinafter to be referred as BSC), the PR_LENGTH under all contained fans is the same.
More than cited strategy have two defectives:
1) the 3rd point of the transmission strategy of the reverse shared service channel signaling of basis, PR_LENGTH must be set to a suitable value just can make the reception success rate of the reverse shared service channel signaling of base station side reach the highest.But the maximum at backstage PR_LENGTH is 2 at present, adds 1 in end side, and then maximum is 3.Find that through test the maximum of current PR_LENGTH is far smaller than so-called appropriate value.
2) the 4th of the transmission strategy of reverse shared service channel signaling also exists defective.The conventional group calling of initiating under same BSC at present, the PR_LENGTH of its all reverse shared service channels is the same.According to the Traffic Channel characteristics of traditional group,, then can on each contained fan, all set up corresponding oppositely shared service channel if same conventional group calling is distributed on a plurality of contained fans.Because each reverse traffic channel can be provided with different PR_LENGTH, so the different reverse shared service channel of same BSC is provided with identical PR_LENGTH, does not meet the characteristics of conventional group calling Traffic Channel.
Summary of the invention
The present invention researchs and develops in order to overcome tactful two defectives that faced of current transmission.For this reason, the present invention proposes:
1. increase the span of PR_LENGTH, make its reception success rate that satisfies reverse shared service channel signaling reach peak;
2. different above-mentioned PR_LENGTH is set under different contained fans, makes its reverse shared service channel performance under different contained fans reach optimum.
The span of increase of the present invention PR_LENGTH and the described process that different PR_LENGTH is set under different contained fans are as follows:
Step 1: enlarge the span of above-mentioned PR_LNEGTH on the backstage, increase above-mentioned PR_LNEGTH field length, and the position of above-mentioned PR_LENGTH is set, when database synchronization, the value of above-mentioned PR_LENGTH is sent to BSC side data storehouse;
Step 2: base station transceiver (Base Transceiver Station, hereinafter to be referred as BTS) the side data storehouse increases above-mentioned PR_LENGTH field under above-mentioned BSC side data storehouse, when database synchronization, the value of above-mentioned PR_LENGTH is sent to above-mentioned BTS side data storehouse, and be filled into above-mentioned PR_LENGTH field;
Step 3: PoC Base Station System Application Part (PTT Base Station System Application Part is hereinafter to be referred as PBSSAP) process is delivered to above-mentioned PR_LENGTH field in above-mentioned BSC side data storehouse;
Step 4: configuration management part (Configure Administrator Part is hereinafter to be referred as CAP) process is delivered to above-mentioned PR_LENGTH field in above-mentioned BTS side data storehouse;
Step 5: common signaling channel layer 3 processing module (Common Signaling Channel Layer 3 Signaling Process are hereinafter to be referred as CSCHP) process is delivered to the PR_LENGTH field in above-mentioned BTS side data storehouse;
Step 6: above-mentioned PBSSAP passes to terminal with message, after above-mentioned terminal is received, calculates the length of the actual reverse shared service channel signaling prefix that sends;
Step 7: above-mentioned CAP passes to terminal with the PoC system parameters message, after above-mentioned terminal is received, calculates the length of the actual reverse shared service channel signaling prefix that sends;
Step 8: above-mentioned CSCHP passes to terminal with message, after above-mentioned terminal is received, calculates the length of the actual reverse shared service channel signaling prefix that sends.
Span with described PR_LNEGTH in the above-mentioned steps 1 expands 0～15 to, and above-mentioned PR_LNEGTH field length is increased to 4 bits from 2 bits, and the position setting of above-mentioned PR_LENGTH is changed under the node of sub-district; Wherein above-mentioned BSC side data storehouse is changed to above-mentioned PR_LENGTH field under the CELL parameter list from Broadcast Satellite Service (Broadcasting Satellite Service is hereinafter to be referred as BSS) parameter list.
The storehouse of BTS side data described in the above-mentioned steps 2 increases above-mentioned PR_LENGTH field under the CELL parameter list in above-mentioned BSC side data storehouse.
PBSSAP described in the above-mentioned steps 3 fills the PR_LENGTH field of NCAM message according to the length of 4 bits.
CAP described in the above-mentioned steps 4 fills the PR_LENGTH field of above-mentioned PoC system parameters message according to the length of 4 bits.
CSCHP described in the above-mentioned steps 5 fills the PR_LENGTH field of BCAM message according to the length of 4 bits.
PBSSAP described in the above-mentioned steps 6 passes to terminal with NCAM message, and according to 2
*The formula of PR_LENGTH calculates the length of the above-mentioned actual reverse shared service channel signaling prefix that sends.
In the above-mentioned steps 7 according to 2
*The formula of PR_LENGTH calculates the length of the above-mentioned actual reverse shared service channel signaling prefix that sends.
Above-mentioned CSCHP described in the above-mentioned steps 8 passes to terminal with BCAM message, and according to 2
*The formula of PR_LENGTH calculates the length of the above-mentioned actual reverse shared service channel signaling prefix that sends.
The present invention can improve the reception success rate of reverse shared service channel signaling, makes that also the configuration room for maneuver of PR_LENGTH is bigger, can suitable substance P R_LENGTH value be set at more radio configuration situation.Make that simultaneously the setting of PR_LENGTH is more targeted, reached the reverse shared service channel performance optimization under the different contained fans.For different contained fans, different radio configuration is generally arranged, very little such as the contained fan radius of society that has, so the search window width is very narrow, this moment, searcher relied on existing search capability just can search reverse signal, did not need terminal to send very long signaling prefix.So PR_LENGTH can be provided with less relatively value,, also can reduce the searched time that arrives of signaling simultaneously to reduce the probability and the reverse interference of collision.Vice versa.
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in further detail.For the person of ordinary skill in the field, from detailed description of the invention, above-mentioned and other purposes of the present invention, feature and advantage will be apparent.
Description of drawings
Fig. 1 is a kind of flow chart that improves the method for signalling transfer strategy of reverse sharing service channel of one embodiment of the invention.
Embodiment
A kind of core of improving the method for signalling transfer strategy of reverse sharing service channel of the present invention is to comprise: (1) increases the span of PR_LENGTH, makes its reception success rate that satisfies reverse shared service channel signaling reach peak; (2) different above-mentioned PR_LENGTH is set under different contained fans, makes its reverse shared service channel performance under different contained fans reach optimum, make it meet the characteristics of conventional group calling Traffic Channel simultaneously.
Below with reference to Fig. 1, this figure is a kind of flow chart that improves the method for signalling transfer strategy of reverse sharing service channel of one embodiment of the invention.According to this figure, the concrete enforcement of one embodiment of the invention comprises the steps:
Step 1: the span on the backstage with above-mentioned PR_LNEGTH expands 0～15 to, increase above-mentioned PR_LNEGTH field length from 2 bits to 4 bits, and the position of above-mentioned PR_LENGTH be provided with change under the node of sub-district; , when database synchronization, the value of above-mentioned PR_LENGTH is sent to BSC side data storehouse; Wherein above-mentioned BSC side data storehouse is changed to above-mentioned PR_LENGTH field under the CELL parameter list from the BSS parameter list.
Step 2:BTS side data storehouse increases above-mentioned PR_LENGTH field under the CELL parameter list in above-mentioned BSC side data storehouse, when database synchronization, the value of above-mentioned PR_LENGTH is sent to above-mentioned BTS side data storehouse, and be filled into above-mentioned PR_LENGTH field;
Step 3: the PBSSAP process is delivered to above-mentioned PR_LENGTH field in above-mentioned BSC side data storehouse; PBSSAP fills the PR_LENGTH field of NCAM message according to the length of 4 bits.
Step 4: the CAP process is delivered to above-mentioned PR_LENGTH field in above-mentioned BTS side data storehouse; CAP fills the PR_LENGTH field of above-mentioned PoC system parameters message according to the length of 4 bits.
Step 5: the CSCHP process is delivered to the PR_LENGTH field in above-mentioned BTS side data storehouse; CSCHP fills the PR_LENGTH field of BCAM message according to the length of 4 bits.
Step 6: above-mentioned PBSSAP passes to terminal with NCAM message, after above-mentioned terminal is received, and according to 2
*The formula of PR_LENGTH calculates the length of the above-mentioned actual reverse shared service channel signaling prefix that sends.
Step 7: above-mentioned CAP passes to terminal with the PoC system parameters message, after above-mentioned terminal is received, according to 2
*The formula of PR_LENGTH calculates the length of the above-mentioned actual reverse shared service channel signaling prefix that sends.
Step 8: above-mentioned CSCHP passes to terminal with BCAM message, after above-mentioned terminal is received, and according to 2
*The formula of PR_LENGTH calculates the length of the above-mentioned actual reverse shared service channel signaling prefix that sends.
Certainly; the present invention also can have other embodiment; under the situation that does not deviate from spirit of the present invention and essence thereof; the person of ordinary skill in the field works as can make various corresponding changes and distortion according to the present invention, but these corresponding changes and distortion all should belong to the protection range of claim of the present invention.
Claims (9)
1. a method of improving signalling transfer strategy of reverse sharing service channel is characterized in that, comprising:
Step 1: enlarge the span of above-mentioned PR_LNEGTH on the backstage, increase above-mentioned PR_LNEGTH field length, and the position of above-mentioned PR_LENGTH is set, when database synchronization, the value of above-mentioned PR_LENGTH is sent to the side of base station controller database;
Step 2: base station transceiver side data storehouse increases above-mentioned PR_LENGTH field under above-mentioned side of base station controller database, when database synchronization, the value of above-mentioned PR_LENGTH is sent to above-mentioned base station transceiver side data storehouse, and be filled into above-mentioned PR_LENGTH field;
Step 3: above-mentioned side of base station controller database is delivered to PoC Base Station System Application Part process with above-mentioned PR_LENGTH field;
Step 4: configuration management part process is delivered to above-mentioned PR_LENGTH field in above-mentioned base station transceiver side data storehouse;
Step 5: common signaling channel layer 3 processing module process are delivered to the PR_LENGTH field in above-mentioned base station transceiver side data storehouse;
Step 6: above-mentioned PoC Base Station System Application Part is passed to terminal with message, after above-mentioned terminal is received, calculates the length of the actual reverse shared service channel signaling prefix that sends;
Step 7: above-mentioned configuration management part is passed to terminal with the PoC system parameters message, after above-mentioned terminal is received, calculates the length of the actual reverse shared service channel signaling prefix that sends;
Step 8: above-mentioned common signaling channel layer 3 processing module are passed to terminal with message, after above-mentioned terminal is received, calculate the length of the actual reverse shared service channel signaling prefix that sends.
2. the method for improvement signalling transfer strategy of reverse sharing service channel according to claim 1, it is characterized in that, span with described PR_LNEGTH in the above-mentioned steps 1 expands 0～15 to, above-mentioned PR_LNEGTH field length is increased to 4 bits from 2 bits, and the position setting of above-mentioned PR_LENGTH is changed under the node of sub-district; Wherein above-mentioned side of base station controller database is changed to above-mentioned PR_LENGTH field under the CELL parameter list from the Broadcast Satellite Service parameter list.
3. the method for improvement signalling transfer strategy of reverse sharing service channel according to claim 2, it is characterized in that the storehouse of base station transceiver side data described in the above-mentioned steps 2 increases above-mentioned PR_LENGTH field under the CELL of above-mentioned side of base station controller database parameter list.
4. the method for improvement signalling transfer strategy of reverse sharing service channel according to claim 3 is characterized in that, PoC Base Station System Application Part described in the above-mentioned steps 3 is filled the PR_LENGTH field of NCAM message according to the length of 4 bits.
5. the method for improvement signalling transfer strategy of reverse sharing service channel according to claim 4, it is characterized in that the configuration management part described in the above-mentioned steps 4 is filled the PR_LENGTH field of above-mentioned PoC system parameters message according to the length of 4 bits.
6. the method for improvement signalling transfer strategy of reverse sharing service channel according to claim 5, it is characterized in that common signaling channel layer 3 processing module described in the above-mentioned steps 5 are filled the PR_LENGTH field of broadcast channel assigned message according to the length of 4 bits.
7. the method for improvement signalling transfer strategy of reverse sharing service channel according to claim 6, it is characterized in that, PoC Base Station System Application Part described in the above-mentioned steps 6 is passed to terminal with Neighboring Cell List message, and calculates the length of the above-mentioned actual reverse shared service channel signaling prefix that sends according to the formula of 2*PR_LENGTH.
8. the method for improvement signalling transfer strategy of reverse sharing service channel according to claim 7 is characterized in that, calculates the length of the above-mentioned actual reverse shared service channel signaling prefix that sends in the above-mentioned steps 7 according to the formula of 2*PR_LENGTH.
9. the method for improvement signalling transfer strategy of reverse sharing service channel according to claim 8, it is characterized in that, above-mentioned common signaling channel layer 3 processing module described in the above-mentioned steps 8 are passed to terminal with BCAM message, and calculate the length of the above-mentioned actual reverse shared service channel signaling prefix that sends according to the formula of 2*PR_LENGTH.
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| CN103095365A (en) * | 2013-01-08 | 2013-05-08 | 哈尔滨海能达科技有限公司 | Method, terminal, base station and system for backward channel signal transmission |
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| CN100483982C (en) * | 2003-05-22 | 2009-04-29 | 华为技术有限公司 | Information channel sharing method for supporting concentration service in CDMA system |
| AU2003242209A1 (en) * | 2003-06-11 | 2005-01-04 | Zte Corporation | A trunked communication method |
| CN100384266C (en) * | 2004-07-20 | 2008-04-23 | 华为技术有限公司 | Service frame distribution method in digital trunking system |
| CN100463542C (en) * | 2005-03-03 | 2009-02-18 | 中兴通讯股份有限公司 | Method for transmitting broadcast channel assignment message in CDMA standard group communication system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103095365A (en) * | 2013-01-08 | 2013-05-08 | 哈尔滨海能达科技有限公司 | Method, terminal, base station and system for backward channel signal transmission |
| CN103095365B (en) * | 2013-01-08 | 2016-01-20 | 哈尔滨海能达科技有限公司 | A kind of method of backward channel signal transmission, terminal, base station and system |
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