CN100382615C - Link transmission multiplexing implemented wireless base station subsystem and implementing method thereof - Google Patents
Link transmission multiplexing implemented wireless base station subsystem and implementing method thereof Download PDFInfo
- Publication number
- CN100382615C CN100382615C CNB2004100064565A CN200410006456A CN100382615C CN 100382615 C CN100382615 C CN 100382615C CN B2004100064565 A CNB2004100064565 A CN B2004100064565A CN 200410006456 A CN200410006456 A CN 200410006456A CN 100382615 C CN100382615 C CN 100382615C
- Authority
- CN
- China
- Prior art keywords
- link
- base station
- signaling
- transmission
- maintenance
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Mobile Radio Communication Systems (AREA)
Abstract
The present invention discloses a wireless base station subsystem of realizing link transmission multiplexing, which at least comprises a base station controller, a base station and a transmission facility. The present invention also comprises a first multiplex/de-multiplex device and a second multiplex/de-multiplex device, wherein the first multiplex/de-multiplex device can be used in multiplexing of a signaling link of a link layer of the base station controller and an operation maintenance link onto a transmission link with fixed bandwidth, signaling loaded on a multiplex transmission link and the operation maintenance information are transmitted to the base station by the transmission facility, the signaling and the operation maintenance link are receive and processed in a de-multiplexing mode by the transmission facility, and obtained signaling and the maintenance information are assigned to the base station controller. The second multiplex/de-multiplex device can be used in multiplexing the signaling link and operation maintenance link of the link layer of the base station onto the transmission link with fixed bandwidth, the signaling loaded on the multiplex transmission link and the operation maintenance information are transmitted to the base station controller by the transmission facility, the signaling and the operation maintenance link are received and processed in a de-multiplexing mode by the transmission facility, and the obtained signaling and the maintenance information are assigned to the base station. Simultaneously, the present invention also discloses a method for the realization of link transmission multiplexing.
Description
Technical field
The present invention relates to the wireless base station subsystem, be meant a kind of wireless base station subsystem and method that realizes that link transmission is multiplexing especially.
Background technology
In the mobile communication base station subsystems such as GSM, CDMA, WCDMA, TD-CDMA, the transmission of the interface data between base station controller and base station need be finished by transmission system.Fig. 1 is existing transmission equipment connection diagram.Referring to shown in Figure 1, base station sub-system comprises base station, base station controller.Base station and base station controller communicate by transmission equipment 1 and transmission equipment 2.
When carrying out general communication service,, can't arrive such as modes such as utilizing twisted-pair feeder, optical transmission, microwave owing to traditional transmission solution in remote districts, and these traditional approach construction cost height, the construction period is long, and rate of return on investment is low.In order to address this problem, satellite transmits will become an effective scheme.
Scarcely populated at some, extreme terrain areas such as desert, island, hills and many mountains, utilizing satellite communication to solve transmission is a kind of quick, effective, economic means.The advantage of satellite transmits is that accessibility is good, builds fast.Certainly, a unsurmountable shortcoming is also arranged is that the cost height is leased in operation to satellite transmits.Therefore, how to revise the coffret design of optimizing base station controller and base station in the base station sub-system, reduce the system transmission bandwidth requirement, to improve the reusability of transmission, reduction satellite transmits bandwidth becomes a current demand to cut operating costs.
Summary of the invention
In view of this, the object of the present invention is to provide a kind of wireless base station subsystem of realizing that link transmission is multiplexing, make it can reduce taking the satellite transmits bandwidth.
Another object of the present invention is a kind of method that realizes that link transmission is multiplexing, can reduce the bandwidth of shared satellite transmits.
A kind of multiplexing wireless base station subsystem of link transmission of realizing provided by the invention comprises base station controller, base station and transmission equipment at least, also comprises:
The first multiplex/demultiplex equipment, be used for the signaling link of base station controller link layer and Operation and maintenance link with the mode logical multiplexing that respectively takies the 8K bandwidth transmission link to the fixed-bandwidth of 16K, and the signaling and the Operation and Maintenance information of carrying on the logical multiplexing transmission link is passed to the base station by transmission equipment, with, be received in the base station side signaling and the Operation and Maintenance information of carrying on the logical multiplexing transmission link by transmission equipment, and base station side signaling and the Operation and Maintenance infologic that receives demultiplexed into signaling link and Operation and maintenance link, and with the information distribution that obtains to the inner corresponding processing unit of base station controller;
The second multiplex/demultiplex equipment, be used for the signaling link of base station link layer and Operation and maintenance link with the mode logical multiplexing that respectively takies the 8K bandwidth transmission link to the fixed-bandwidth of 16K, and the signaling and the Operation and Maintenance information of carrying on the logical multiplexing transmission link is passed to base station controller by transmission equipment, with, be received in the side of base station controller signaling and the Operation and Maintenance information of carrying on the logical multiplexing transmission link by transmission equipment, and side of base station controller signaling and the Operation and Maintenance infologic that receives demultiplexed into signaling link and Operation and maintenance link, and with the information distribution that obtains processing unit to the inside of base station correspondence.
The described first multiplex/demultiplex equipment is internal or external at base station controller.
The described second multiplex/demultiplex equipment is internal or external at the base station.
Described multiplex/demultiplex equipment is soft or hardware entities.
The described first multiplex/demultiplex equipment comprises two message buffers, a bit exchange equipment; The described second multiplex/demultiplex equipment comprises two message buffers, a bit exchange equipment; Signaling link passes through different message buffers respectively with the information of Operation and maintenance link, by bit exchange equipment the bit stream of two message buffers is combined into the transmission link of fixed-bandwidth again, after being transferred to opposite end multiplex/demultiplex equipment by transmission equipment, the transmission link of fixed-bandwidth is decomposed and being assigned to signaling link and Operation and maintenance link respectively through different message buffers through the bit exchange equipment of opposite end multiplex/demultiplex equipment.
A kind of multiplexing method of link transmission that realizes provided by the invention comprises:
At base station controller to the base station direction, side of base station controller with signaling link and Operation and maintenance link with the mode logical multiplexing that respectively takies the 8K bandwidth to the transmission link of the fixed-bandwidth of 16K, and the signaling and the Operation and Maintenance information of carrying on the logical multiplexing transmission link is passed to base station side by transmission equipment; Base station side demultiplexes into signaling link and Operation and maintenance link with signaling and Operation and Maintenance infologic, and the information distribution that obtains is arrived inner corresponding processing unit;
In the base station to the base station controller direction, base station side with signaling link and Operation and maintenance link with the mode logical multiplexing that respectively takies the 8K bandwidth to the transmission link of the fixed-bandwidth of 16K; And the signaling and the Operation and Maintenance information of carrying on the logical multiplexing transmission link is sent to side of base station controller by transmission equipment; Side of base station controller demultiplexes into signaling link and Operation and maintenance link with logical multiplexing transmission link logic, and the information distribution that obtains is arrived inner corresponding processing unit.
Describedly with signaling link with the Operation and maintenance link logical multiplexing to the transmission link of fixed-bandwidth be: the information of signaling link and Operation and maintenance link is passed through different message buffers respectively, is combined on the transmission link of fixed-bandwidth by the bit stream of bit exchange equipment with two message buffers again;
Describedly signaling is demultiplexed into signaling link with the Operation and Maintenance infologic and Operation and maintenance link is: the transmission link of fixed-bandwidth is decomposed and be assigned to signaling link and Operation and maintenance link respectively through different message buffers through bit exchange equipment.
The present invention is multiplexed into signaling link and Operation and maintenance link on the transmission link of fixed-bandwidth, further improves the reusability of signaling and Operation and maintenance link, reduces the transfer resource bandwidth requirement, to save operation cost.
Description of drawings
Fig. 1 is the connection diagram between base station controller of the prior art and base station;
Fig. 2 is built in the connection diagram of base station controller and base station for multiplexing and demultiplexing equipment;
Fig. 3 is placed on the connection diagram of base station controller and base station for multiplexing and demultiplexing equipment;
Fig. 4 a and Fig. 4 b are respectively multiplexing and the external connection diagram of the built-in end of demultiplexing equipment one end;
Fig. 5 a, 5b, 5c are respectively the E1 framing format under existing 64K, 32K, the 16K signalling bandwidth transmission means;
Fig. 5 d and Fig. 5 e are respectively the framing format of E1 transmission link under logical multiplexing and the statistic multiplexing mode;
Fig. 5 f is a logical multiplexing demultiplexing process diagram;
Fig. 6 is the schematic flow sheet of descending multiplexing and demultiplexing;
Fig. 7 is the schematic flow sheet of up multiplexing and demultiplexing.
Embodiment
BSS system Abis interface with GSM is an example below, and the summary of the invention of realizing link layer multiplexing and demultiplexing function is described.Wireless base station subsystem for other standards can adopt similar measure to be achieved as CDMA, WCDMA, TD-CDMA etc.
Referring to shown in Figure 2, system of the present invention comprises base station controller 201, base station 202 and corresponding to the link layer multiplex/demultiplex equipment of base station controller 201 sides and base station 202 sides.Wherein, base station controller is by transmission equipment 203, as the A-bis interface, be connected with the base station, physically the A-bis interface can be via satellite, wireless connections such as microwave, perhaps by wired connections such as optical fiber, coaxial cable or twisted-pair feeders, link layer (logical layer) is to transmit by the E1 frame format of standard.The link layer multiplexing equipment is used for signaling link and the multiplexing link in fixed transmission bandwidth of Operation and maintenance link, makes on the link of fixed transmission bandwidth command transmitting and Operation and Maintenance information simultaneously; Link layer demultiplexing equipment is used for the signaling link received on the link with fixed transmission bandwidth and the information demultiplexing of Operation and maintenance link.In base station sub-system, unified for the agreement that reaches base station and base station controller two ends, multiplexing and demultiplexing equipment must occur in pairs.
And the base station also further comprises base station main equipment and coffret equipment.Base station controller also further comprises base station controller main equipment and coffret equipment.
In actual application, according to different equipment characteristics, multiplex/demultiplex equipment not only can be built-in but also can be placed on base station and/or base station controller.Figure 2 shows that the multiplexing of base station controller and base station and demultiplexing equipment are built in the schematic diagram of base station and base station controller inside, this built-in multiplexing and demultiplexing equipment is arranged between base station controller main equipment/base station main equipment and the coffret equipment, can utilize the software and hardware resources of existing equipment to realize.Figure 3 shows that the multiplexing of base station controller and base station and demultiplexing equipment are placed on the schematic diagram of base station and base station controller.In this case, in the time can not realizing, can utilize external module to realize, reduce impact as far as possible existing equipment by the software and hardware resources of existing equipment.Figure 4 shows that the multiplexing of base station controller and base station and the schematic diagram that demultiplexing equipment one end is built-in, the other end is placed on base station and base station controller.This mode can be considered the software and hardware resources of existing base station and base station controller equipment independently flexibly, and comprehensive utilization internal resource and external module are realized, reduce the impact to existing equipment as far as possible.Certainly, in actual application, can take into full account the inner software and hardware resources flexible configuration of existing system, reduce the purpose that existing equipment is impacted again thereby reach the raising system performance.
Referring to shown in Figure 6, said system is at down direction, and promptly base station controller realizes that to the base station direction process of the inventive method is:
Step 601: the link layer multiplexing equipment of base station controller is multiplexed into signaling link and Operation and maintenance link on the transmission link of fixed-bandwidth;
Step 602: transmission equipment passes to the base station with the signaling and the Operation and Maintenance information of link bearer;
Step 603: the demultiplexing equipment of base station demultiplexes into signaling and Operation and Maintenance information signaling link and Operation and maintenance link and is assigned to corresponding processing unit.
Referring to shown in Figure 7, said system is at up direction, and promptly procedure of the present invention is realized to the base station controller direction in the base station:
Step 701: the link layer multiplexing equipment of base station is multiplexed into signaling link and Operation and maintenance link on the transmission link of fixed-bandwidth;
Step 702: transmission equipment is sent to base station controller with the signaling and the Operation and Maintenance information of link layer carrying;
Step 703: the demultiplexing equipment of base station controller demultiplexes into signaling and Operation and Maintenance information signaling link and Operation and maintenance link and is assigned to corresponding processing unit.
And the method for the multiplexing and demultiplexing of base station controller and base station both can be logical multiplexing and demultiplexing in said system, also can be statistic multiplexing and demultiplexing.Logical multiplexing and demultiplexing are the transmission bandwidth resources that Operation and maintenance link and signaling link respectively account for half, and both transmission bandwidths are relatively independent, and shortcoming is that both can not shared resource.And the statistic multiplexing mode is two kinds of information sharing logic fixed transmission bandwidth resources, terminal point identifier (TEI) by link layer is distinguished different message, different link informations is characterized in that by the shared resource that concerns of first in first out every link sharing can dynamically use maximum transfer resource to fixed-bandwidth.Therefore, if fixed transmission bandwidth is the 16K bandwidth, when GSM base station and base station controller adopt the logical multiplexing mode to the signaling of inside and operational maintenance command, signaling and operational maintenance command account for the transfer resource of 8K respectively, when adopting the statistic multiplexing mode, both dynamically take the bandwidth of 0～16K respectively, and soon Radio Signaling Link (RSL) link of the Operation and maintenance link (OML) of a 16K bandwidth and a 16K bandwidth is multiplexed with the OML+RSL link of a 16K bandwidth.
Need to prove, in the E1 of standard agreement, article one, the E1 of 2M bandwidth by the time be divided into the logic channel (E1 time slot) of 32 64K bandwidth, these channels transmit according to the frame period of 8K again simultaneously, therefore every frame of every channel comprises the data of 8Bit, in the BSS of GSM system, because the bandwidth of speech business is 13K, so the bandwidth of every speech business link assignment 16K, therefore traditionally, switching net exchanges according to 16K, and therefore traditional signaling also is 16K or its multiple.But in fact on the coffret equipment of base station and base station controller, these information can minimum exchange in bit (Bit) mode, and therefore the logic channel at link layer can minimum be divided into Bit of every frame, the just logic channel of 8K bandwidth.In remote districts, under situations such as desert, isolated island or rural area universal service, telephone traffic and user are less, the configuration of low capacity just can meet the demands, the signalling bandwidth of 8K is also enough, at this moment adopts signaling and Operation and Maintenance infologic to share the 16K bandwidth resources and has played the purpose of saving transfer resource.
For example, in existing gsm system, A-bis interface link layer framing structure shown in Fig. 5 a, 5b, 5c.Every signaling link or Operation and maintenance link among Fig. 5 a, 5b, the 5c all take 64K, 32K, 16K transmission bandwidth resource respectively separately.
Before multiplexing, framing structure is shown in Fig. 5 c, and every signaling link or Operation and maintenance link account for the 16K resource respectively separately.
Frame structure by the signal that transmits on E1 behind the logical multiplexing is shown in Fig. 5 d, and Operation and maintenance link and signaling link respectively account for the transmission bandwidth resource of 8K.
By the framing structure behind the statistic multiplexing shown in Fig. 5 e.Here, Operation and Maintenance information and signaling information are shared the bandwidth logical link resource of 16K, TEI by link layer distinguishes different message, different link informations is by the shared resource that concerns of first in first out, and this situation Operation and Maintenance information and signaling information are dynamically shared the resource of the 16K of every link.
Shown in Fig. 5 f, adopt the process of logical multiplexing and demultiplexing as follows:
Article two, the information via message buffer of different links, by the Bit switching equipment bit stream of two buffering areas is exchanged to the logical links that two adjacent 8K outlets are combined into a 16K according to the 8K bandwidth again, after being transferred to the opposite end by transmission equipment, the Bit switching equipment of the demultiplexing equipment that process is corresponding resolves into two 8K information flows with the 16K logical links and is assigned to different signalings and Operation and maintenance link through buffering areas, finishes whole multiplexing and demultiplexing process.
In a word, the above is preferred embodiment of the present invention only, is not to be used to limit protection scope of the present invention.
Claims (7)
1. a wireless base station subsystem of realizing that link transmission is multiplexing comprises base station controller, base station and transmission equipment at least, it is characterized in that this system also comprises:
The first multiplex/demultiplex equipment, be used for the signaling link of base station controller link layer and Operation and maintenance link with the mode logical multiplexing that respectively takies the 8K bandwidth transmission link to the fixed-bandwidth of 16K, and the signaling and the Operation and Maintenance information of carrying on the logical multiplexing transmission link is passed to the base station by transmission equipment, with, be received in the base station side signaling and the Operation and Maintenance information of carrying on the logical multiplexing transmission link by transmission equipment, and base station side signaling and the Operation and Maintenance infologic that receives demultiplexed into signaling link and Operation and maintenance link, and with the information distribution that obtains to the inner corresponding processing unit of base station controller;
The second multiplex/demultiplex equipment, be used for the signaling link of base station link layer and Operation and maintenance link with the mode logical multiplexing that respectively takies the 8K bandwidth transmission link to the fixed-bandwidth of 16K, and the signaling and the Operation and Maintenance information of carrying on the logical multiplexing transmission link is passed to base station controller by transmission equipment, with, be received in the side of base station controller signaling and the Operation and Maintenance information of carrying on the logical multiplexing transmission link by transmission equipment, and side of base station controller signaling and the Operation and Maintenance infologic that receives demultiplexed into signaling link and Operation and maintenance link, and with the information distribution that obtains processing unit to the inside of base station correspondence.
2. system according to claim 1 is characterized in that, the described first multiplex/demultiplex equipment is internal or external at base station controller.
3. system according to claim 1 is characterized in that, the described second multiplex/demultiplex equipment is internal or external at the base station.
4. system according to claim 1 is characterized in that, described multiplex/demultiplex equipment is soft or hardware entities.
5. system according to claim 1 is characterized in that,
The described first multiplex/demultiplex equipment comprises two message buffers, a bit exchange equipment;
The described second multiplex/demultiplex equipment comprises two message buffers, a bit exchange equipment;
Signaling link passes through different message buffers respectively with the information of Operation and maintenance link, by bit exchange equipment the bit stream of two message buffers is combined into the transmission link of fixed-bandwidth again, after being transferred to opposite end multiplex/demultiplex equipment by transmission equipment, the transmission link of fixed-bandwidth is decomposed and being assigned to signaling link and Operation and maintenance link respectively through different message buffers through the bit exchange equipment of opposite end multiplex/demultiplex equipment.
6. a method that realizes that link transmission is multiplexing is characterized in that, this method may further comprise the steps:
At base station controller to the base station direction, side of base station controller with signaling link and Operation and maintenance link with the mode logical multiplexing that respectively takies the 8K bandwidth to the transmission link of the fixed-bandwidth of 16K, and the signaling and the Operation and Maintenance information of carrying on the logical multiplexing transmission link is passed to base station side by transmission equipment; Base station side demultiplexes into signaling link and Operation and maintenance link with signaling and Operation and Maintenance infologic, and the information distribution that obtains is arrived inner corresponding processing unit;
In the base station to the base station controller direction, base station side with signaling link and Operation and maintenance link with the mode logical multiplexing that respectively takies the 8K bandwidth to the transmission link of the fixed-bandwidth of 16K; And the signaling and the Operation and Maintenance information of carrying on the logical multiplexing transmission link is sent to side of base station controller by transmission equipment; Side of base station controller demultiplexes into signaling link and Operation and maintenance link with logical multiplexing transmission link logic, and the information distribution that obtains is arrived inner corresponding processing unit.
7. method according to claim 6 is characterized in that,
Describedly with signaling link with the Operation and maintenance link logical multiplexing to the transmission link of fixed-bandwidth be: the information of signaling link and Operation and maintenance link is passed through different message buffers respectively, is combined on the transmission link of fixed-bandwidth by the bit stream of bit exchange equipment with two message buffers again;
Describedly signaling is demultiplexed into signaling link with the Operation and Maintenance infologic and Operation and maintenance link is: the transmission link of fixed-bandwidth is decomposed and be assigned to signaling link and Operation and maintenance link respectively through different message buffers through bit exchange equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100064565A CN100382615C (en) | 2004-03-08 | 2004-03-08 | Link transmission multiplexing implemented wireless base station subsystem and implementing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100064565A CN100382615C (en) | 2004-03-08 | 2004-03-08 | Link transmission multiplexing implemented wireless base station subsystem and implementing method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1668121A CN1668121A (en) | 2005-09-14 |
| CN100382615C true CN100382615C (en) | 2008-04-16 |
Family
ID=35038956
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100064565A Expired - Fee Related CN100382615C (en) | 2004-03-08 | 2004-03-08 | Link transmission multiplexing implemented wireless base station subsystem and implementing method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100382615C (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1131966A1 (en) * | 1999-09-28 | 2001-09-12 | Nokia Corporation | Allocating abis interface transmission channels in packet cellular radio network |
-
2004
- 2004-03-08 CN CNB2004100064565A patent/CN100382615C/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1131966A1 (en) * | 1999-09-28 | 2001-09-12 | Nokia Corporation | Allocating abis interface transmission channels in packet cellular radio network |
Non-Patent Citations (1)
| Title |
|---|
| GSM移动通信系统中基站－基站控制器间Abis接口电路倍增研究. 陈慧剑.南京邮电学院硕士学位论文. 2003 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1668121A (en) | 2005-09-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| AU668744B2 (en) | Microcellular radio network | |
| US6138037A (en) | Implementation of signalling in a telecommunications network | |
| USRE39990E1 (en) | Increasing channel capacity in fixed cellular networks | |
| US6643524B1 (en) | Base station serial connection communication system in a mobile communication system | |
| CA2354989A1 (en) | System and method for switching digital subscriber line service | |
| JP3007690B2 (en) | Method for transmitting information over a general transmission line network | |
| US20080318589A1 (en) | Transmission Optimization in a Wireless Base Station System Based on Load-Sharing | |
| AU694472B2 (en) | A mobile communication system and a base station in a mobile communication system | |
| CN109586886B (en) | Data transmission system | |
| CN100382615C (en) | Link transmission multiplexing implemented wireless base station subsystem and implementing method thereof | |
| CN111133833B (en) | Forward system for wireless telecommunication network | |
| CN1750444B (en) | Method and system for realizing digital repeater by using current SDII network transmission signal | |
| KR100288841B1 (en) | Device for interface between mobile communication switching office and interworking function unit | |
| FI107218B (en) | Method of allocating a channel in a mobile communication system | |
| US8036251B2 (en) | Packet transmission device and control method thereof | |
| CN100421474C (en) | Communication structure for multiplexed links | |
| CN101083499A (en) | Digital microwave grid communication system and method for realizing the same | |
| JP2897769B1 (en) | Method for migrating mobile communication network and mobile communication system | |
| EP1156688A2 (en) | Transmission line sharing method and system for service networks different from each other in network system | |
| JPH0728441B2 (en) | Mobile communication switching system | |
| JP2001177866A (en) | Wireless communication system | |
| CN100583687C (en) | Methods and systems for communicating data at radio base station nodes that provide efficient allocation of control timeslots | |
| CN1140151C (en) | Transmission of GSM circuit-switched data over CDMA link | |
| KR100345683B1 (en) | apparatus and method for matching radio port and radio port controller in coireless local loop system | |
| CN101192901A (en) | Information interaction device and method for auxiliary device and auxiliary device maintenance terminal |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080416 Termination date: 20180308 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |