CN1387372A - Method for dynamically assigning transmission bandwidth of mobile communication satelite on demand - Google Patents
Method for dynamically assigning transmission bandwidth of mobile communication satelite on demand Download PDFInfo
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- CN1387372A CN1387372A CN 01112961 CN01112961A CN1387372A CN 1387372 A CN1387372 A CN 1387372A CN 01112961 CN01112961 CN 01112961 CN 01112961 A CN01112961 A CN 01112961A CN 1387372 A CN1387372 A CN 1387372A
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Abstract
The present invention relates to a method for dynamic distributing the transmission bandwidth of the mobile communication satellite according to need. The method includes following steps. (1) RSL, OML configurations of the system are determined, and the bandwidths of the satellite are distributed fixedly. When a call is produced, whether there is a distributed channel or not is checked; if no, then applying for the satellite channel. (2) The satellite system checks-up whether there is a free satellite service channel, if yes, then one satellite channel is dynamic distributed according to need in DAMA mode; if no, then this call is failed. (3) Whether there is a free satellite service channel or not is checks-up further, if yes, the calling is set up by using the free sub channel; if no, returning back and applying for the satellite channel again.
Description
The present invention relates to a kind of dynamic on-demand distribution method of assigning transmission bandwidth of mobile communication satelite.
In GSM (global digital mobile communication system), CDMA (code division multiple access), WCDMA (Wideband Code Division Multiple Access (WCDMA)), the CDMA2000 mobile communication system such as (CDMA 2000), the transfer of data of subsystem interface (as: the A interface between the Abis interface in the gsm system between base transceiver station BTS and base station controller BSC, BSC and moving exchanging center MSC) is to be finished by transmission system.Transfer of data must guarantee certain transmission bandwidth and guarantee transmission quality.For the outlying district, generally realize the transfer of data of subsystem (as: each base transceiver station BTS of gsm system, the base station controller BSC) interface of mobile communication system with satellite.
What existing moving communication satellite transmission was adopted is the method that predetermined fixed is distributed bandwidth.Abis interface with gsm system is an example, sees also Fig. 1, the method for its fixed allocation bandwidth: the channel quantity that at first is determined to this BTS1 according to the configuration of BTS (base transceiver station); Determine that according to all BTS channel summations that connect according to BSC (base station controller) satellite arrives the satellite bandwidth of this BSC2 then; According to the satellite bandwidth of determining, the fixed allocation satellite is to the satellite bandwidth of BSC, each BTS.After system opens, call out and undertaken by the satellite channel (satellite transmits passage) of having distributed with definite bandwidth.A satellite channel comprises 4 subchannels, and wherein, the transmission bandwidth of satellite channel is 64K, and the transmission bandwidth of each subchannel is 16K.
Because the satellite lease expenses according to bandwidth calculation, adopts the fixed allocation bandwidth mode, can cause the higher of satellite bandwidth lease expenses, thereby reduce the investment return ratio.
The object of the present invention is to provide a kind of dynamic on-demand distribution method of assigning transmission bandwidth of mobile communication satelite, thereby realize the dynamic assignment as required of the satellite transmits bandwidth of mobile communication system, obtain the reasonable utilization of satellite transmits bandwidth, the transmission cost in the reduction system improves the investment return ratio.
The object of the present invention is achieved like this, a kind of dynamic on-demand distribution method of assigning transmission bandwidth of mobile communication satelite, comprise the following steps: 1) determine RSL (the Radio Signalling Link of system, Radio Signaling Link), OML (Operations snd Maintenance Link, Operation and maintenance link) configuration; 2) predetermined fixed allocated satellite bandwidth is used for the transmission of RSL and OML; When 3) generation of calling being arranged, at first checking has the satellite channel that has not distributed, if do not have, then applies for satellite channel; If have, then change the 5th over to) step; 4) the satellite system inspection has does not have idle satellite business channel, if having, then according to DAMA (Demand Assigned Multiple Operation, distribution according to need) mode dynamic assignment 1 * 64K satellite bandwidth, enters next step; If do not have, this call failure then; 5) further check to have do not have idle subchannel,, then utilize idle sub-channels to set up and call out if having; If do not have, then be back to the 4th) step, apply for satellite channel again; 6) call setup, conversation, and behind end of calling, discharge subchannel; 7) whether four subchannels of a satellite channel of inspection all discharge, if, discharge this satellite channel, finish; If not, finish.
In the dynamic on-demand distribution method of above-mentioned assigning transmission bandwidth of mobile communication satelite, step 2) satellite bandwidth that the predetermined fixed in is distributed can for: 1 * 64K is used for the transmission of 2 RSL and 1 OML.
In the dynamic on-demand distribution method of above-mentioned assigning transmission bandwidth of mobile communication satelite, step 2) satellite bandwidth that the predetermined fixed in is distributed can be 2 * 64K, is used for 2 RSL and 1 OML and 4 TCH (Traffic Channel, Traffic Channel) transmission.
In the dynamic on-demand distribution method of above-mentioned assigning transmission bandwidth of mobile communication satelite, step 2) satellite bandwidth that the predetermined fixed in is distributed can for: 1 * 64K is used for 1 RSL, 1 OML and 2 TCH transmission.
In the dynamic on-demand distribution method of above-mentioned assigning transmission bandwidth of mobile communication satelite, step 2) satellite bandwidth that the predetermined fixed in is distributed can for: 2 * 64K is used for 1 RSL and 1 OML and 6 TCH transmission.
Adopt above-mentioned technical solution, realized that the Traffic Channel dynamic on-demand of (for example, between BTS and BSC in the gsm system) between the subsystem in the mobile communication system distributes Operation and maintenance link OML and signaling link RSL fixed allocation.For the situation that the satellite channel predetermined fixed is distributed, there is not choke point (the satellite segments percent of call lost is 0) in satellite segments; For the situation of distributing according to the DAMA mode, because a plurality of remote terminal public services channels, thereby in satellite segments certain call loss that can induce one.The present invention under suitable call loss condition, especially in remote terminal quantity more for a long time, and under the less situation of every station telephone traffic, adopt the DAMA mode, can arrive and effectively save satellite bandwidth, improve the utilance of satellite bandwidth, reduce the expense of leasing satellite bandwidth.
The present invention is further illustrated below in conjunction with accompanying drawing.
Fig. 1 is the BTS of gsm system and the sts satellite transmission system schematic diagram between the BSC;
Fig. 2 is the schematic diagram according to the DAMA method of salary distribution;
Fig. 3 is a flow chart of the present invention;
Fig. 4 is one of mode of predetermined fixed allocated satellite bandwidth in the step of the present invention;
Fig. 5 be predetermined fixed allocated satellite bandwidth in the step of the present invention mode two;
Fig. 6 be predetermined fixed allocated satellite bandwidth in the step of the present invention mode three;
Fig. 7 be predetermined fixed allocated satellite bandwidth in the step of the present invention mode four.
As shown in Figure 3, the present invention, that is: a kind of dynamic on-demand distribution method of assigning transmission bandwidth of mobile communication satelite comprises the following steps:
1) RSL, the OML that determines system disposes;
2) predetermined fixed allocated satellite bandwidth is used for the transmission of RSL and OML;
When 3) generation of calling being arranged, at first checking has the satellite channel that has not distributed, if do not have, then applies for satellite channel; If have, then change the 5th over to) step;
4) the satellite system inspection has does not have idle satellite business channel, if having, then distributes 1 * 64K satellite bandwidth according to DAMA mode dynamic on-demand, enters next step; If do not have, this call failure then;
5) further check to have do not have idle subchannel,, then utilize idle sub-channels to set up and call out if having; If do not have, then be back to the 4th) step, apply for satellite channel again;
6) call setup, conversation, and behind end of calling, discharge subchannel;
7) whether four subchannels of a satellite channel of inspection all discharge, if, discharge this satellite channel, finish; If not, finish.
Referring to Fig. 2, above-mentioned steps 4) the described DAMA mode in is promptly: at first, satellite channel is divided into satellite business channel and public signalling channel (CSC), then, CSC between configuration ground satellite station main website 3 and the remote terminal 4, when channel demands, remote terminal 4 by CSC to sts satellite transmission system application satellite business channel, and when idle Traffic Channel being arranged in system, just distribute the Traffic Channel of determining bandwidth, can set up contact between main website 3 and the remote terminal 4 like this, otherwise, this call failure.After communication is finished, by the CSC reporting system, return Traffic Channel, return system share.
Referring to Fig. 4, above-mentioned steps 2) satellite bandwidth that the predetermined fixed in is distributed can for: 1 * 64K is used for the transmission of 2 RSL and 1 OML.OML takies the subchannel of 16K, and 2 RSL take the subchannel of 2 16K, and empty (NULL) goes out the subchannel of a 16K.
Referring to Fig. 5, above-mentioned steps 2) satellite bandwidth that the predetermined fixed in is distributed can for: 2 * 64K is used for 2 RSL and 1 OML and 4 TCH transmission.OML takies the subchannel of 16K, and 2 RSL take the subchannel of 2 16K, and empty (NULL) goes out the subchannel of a 16K, and 4 TCH take the channel of 64K.
Referring to Fig. 6, above-mentioned steps 2) satellite bandwidth that the predetermined fixed in is distributed can for: 1 * 64K is used for 1 RSL, 1 OML and 2 TCH transmission.RSL takies the subchannel of 16K, and OML takies the subchannel of 16K, and 2 TCH take the subchannel of 2 16K.
Referring to Fig. 7, above-mentioned steps 2) satellite bandwidth that the predetermined fixed in is distributed can for: 2 * 64K is used for 1 RSL and 1 OML and 6 TCH transmission.RSL takies the subchannel of 16K, and OML takies the subchannel of 16K, and 6 TCH take the channel of a 64K and the subchannel of 2 16K.
Claims (5)
1. the dynamic on-demand distribution method of an assigning transmission bandwidth of mobile communication satelite comprises the following steps:
1) determines that the Radio Signaling Link of system, Operation and maintenance link dispose;
2) predetermined fixed allocated satellite bandwidth is used for the transmission of Radio Signaling Link and Operation and maintenance link;
When 3) generation of calling being arranged, at first checking has the satellite channel that has not distributed, if do not have, then applies for satellite channel; If have, then change the 5th over to) step;
4) the satellite system inspection has does not have idle satellite business channel, if having, then according to distribution according to need mode dynamic assignment 1 * 64K satellite bandwidth, enters next step; If do not have, this call failure then;
5) further check to have do not have idle subchannel,, then utilize idle sub-channels to set up and call out if having; If do not have, then be back to the 4th) step, apply for satellite channel again;
6) call setup, conversation, and behind end of calling, discharge subchannel;
7) whether four subchannels of a satellite channel of inspection all discharge, if, discharge this satellite channel, finish; If not, finish.
2. the dynamic on-demand distribution method of a kind of assigning transmission bandwidth of mobile communication satelite according to claim 1, it is characterized in that, described step 2) satellite bandwidth that predetermined fixed in is distributed can for: 1 * 64K is used for the transmission of 2 Radio Signaling Links and 1 Operation and maintenance link.
3. the dynamic on-demand distribution method of a kind of assigning transmission bandwidth of mobile communication satelite according to claim 1, it is characterized in that, described step 2) satellite bandwidth that predetermined fixed in is distributed can for: 2 * 64K is used for 2 Radio Signaling Links and 1 Operation and maintenance link and 4 traffic channel transmission.
4. the dynamic on-demand distribution method of a kind of assigning transmission bandwidth of mobile communication satelite according to claim 1, it is characterized in that, described step 2) satellite bandwidth that predetermined fixed in is distributed can for: 1 * 64K is used for 1 Radio Signaling Link, 1 Operation and maintenance link and 2 traffic channel transmission.
5. the dynamic on-demand distribution method of a kind of assigning transmission bandwidth of mobile communication satelite according to claim 1, it is characterized in that, described step 2) satellite bandwidth that predetermined fixed in is distributed can for: 2 * 64K is used for 1 Radio Signaling Link and 1 Operation and maintenance link and 6 traffic channel transmission.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011129611A CN1165187C (en) | 2001-05-23 | 2001-05-23 | Method for dynamically assigning transmission bandwidth of mobile communication satelite on demand |
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| Application Number | Priority Date | Filing Date | Title |
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| CNB011129611A CN1165187C (en) | 2001-05-23 | 2001-05-23 | Method for dynamically assigning transmission bandwidth of mobile communication satelite on demand |
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| CN1387372A true CN1387372A (en) | 2002-12-25 |
| CN1165187C CN1165187C (en) | 2004-09-01 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008080350A1 (en) * | 2006-12-29 | 2008-07-10 | Huawei Technologies Co., Ltd. | Method and device for adjusting bandwidth in optical access network dynamically and system thereof |
| CN100440989C (en) * | 2004-03-10 | 2008-12-03 | 华为技术有限公司 | System and method for implementing satellite transmission |
| CN102301810A (en) * | 2011-05-30 | 2011-12-28 | 华为技术有限公司 | Method for allocating channels, base station equipment, controller and communication system |
| CN112821939A (en) * | 2021-01-14 | 2021-05-18 | 重庆邮电大学 | Position management method in low-orbit satellite communication system |
-
2001
- 2001-05-23 CN CNB011129611A patent/CN1165187C/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100440989C (en) * | 2004-03-10 | 2008-12-03 | 华为技术有限公司 | System and method for implementing satellite transmission |
| WO2008080350A1 (en) * | 2006-12-29 | 2008-07-10 | Huawei Technologies Co., Ltd. | Method and device for adjusting bandwidth in optical access network dynamically and system thereof |
| CN102301810A (en) * | 2011-05-30 | 2011-12-28 | 华为技术有限公司 | Method for allocating channels, base station equipment, controller and communication system |
| CN102301810B (en) * | 2011-05-30 | 2014-04-02 | 华为技术有限公司 | Method for allocating channels, base station equipment, controller and communication system |
| CN112821939A (en) * | 2021-01-14 | 2021-05-18 | 重庆邮电大学 | Position management method in low-orbit satellite communication system |
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| Publication number | Publication date |
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| CN1165187C (en) | 2004-09-01 |
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