CN1400746A - Wireless access system based of pubric mobile communication system - Google Patents
Wireless access system based of pubric mobile communication system Download PDFInfo
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- CN1400746A CN1400746A CN 01126393 CN01126393A CN1400746A CN 1400746 A CN1400746 A CN 1400746A CN 01126393 CN01126393 CN 01126393 CN 01126393 A CN01126393 A CN 01126393A CN 1400746 A CN1400746 A CN 1400746A
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Abstract
This invention discloses a wireless switch-on system based on the public mobile communication system containing office terminal and user terminal in which the said office terminal equipments are the base send/receive information station of the public mobile communication system and the said user terminal includes shared wireless user units and user terminals. The office terminal equipments are public mobile communication network, and the user terminals are shared wireless user units and user terminals. Multi-user terminals in a zone are connected into the related shared wireless user units by which to realize wireless connection with adjacent base send-receive information stations to cut-over to public mobile communication network.
Description
Invention field
The invention belongs to a kind of wireless access system, particularly, a kind of wireless access system based on public access mobile radio.
Background technology
Wireless access (WA-Wireless Access) is meant by wireless medium user terminal and network node is coupled together, and to realize user and internetwork information transmission, implements the equipment of all or part of function of Access Network with wireless means.
Wireless access comprises that mainly mobile wireless inserts two types of (MWA-Mobile Wireless Access) and fixed wireless accesses (FWA-Fixed Wireless Access).It is by public access mobile radio that mobile wireless inserts, and as GSM digital cellular mobile communication systems, CDMA digital cellular mobile communication systems etc., provides communication service to the mobile subscriber, and interoffice roaming, global roaming function even be provided.At present, cell mobile communication systems is finished by first generation simulation standard substantially to the transition of second generation numeral standard, also will step into commercialization with broadband, 3-G (Generation Three mobile communication system) efficient, that multi-service is developing direction, mobile communication system more of new generation also is among the research and development simultaneously.Fixed wireless access also claims wireless local loop (WLL-Wireless Local Loop) traditionally, under certain conditions, provide the local exchange center to the fixing or communications of mobile subscriber terminal at a slow speed by wireless means, but the interoffice roaming service is not provided.
For above two kinds of wireless access, no matter be network size, or traffic carrying capacity, the two has a long way to go.It is unprecedented that mobile wireless inserts the development in nearly ten years, and in China, GSM, cdma network will cover the whole nation, and the mobile subscriber is developed rapidly, has formed huge mobile communication industry size.Review fixed wireless access, then all the time as the replenishing of wired access, development speed is slow, small scale.Trace it to its cause, can't advantage by comparison except fixed wireless accesses such as mobile wireless insert to exist moves, roamings, the fixed wireless access development is limited also relevant with following multiple factor: 1) understanding and orientation problem.For a long time, it is far away apart from local switch that fixed wireless access is positioned in solution, the remote mountain areas that wired cost is too high or the communication solution of rural area, and as a kind of subsidiary communications mode, it is temporary usually being considered to networking.Thereby influenced the market development of this access; 2) typical problem.The standard disunity of fixed wireless access also is difficult to unified.No matter be development to equipment manufacturers, or the networking of operator, very big restriction all formed; 3) radio frequency resources problem.Because frequency resource belongs to non-renewable resources, radio control department is more careful always on the frequency planning of fixed wireless access, and limited frequency planning has limited the market development of fixed wireless access; 4) investment repayment problem.Although under certain conditions, the network construction cost of fixed wireless access is far below wired solution, because traffic carrying capacity from far-off regions is often limited, so operator has also restricted the market development of this access more or less to the misgivings of investment repayment; 5) class of business limitation.The conventional fixed wireless access is subjected to access bandwidth and the restriction of class of business is provided, and can not satisfy the needs of developed regions, particularly big and medium-sized cities, and the area that these areas are the highest to communication requirement just, traffic carrying capacity is maximum.Can not carry out networking in these places, its scale is inevitable limited.
Be subjected to the influence of above-mentioned factor, fixed wireless access has run into powerful resistance aspect market development.In this case, be not difficult to find the vast rural area in many places, particularly China, still have the difficult problem of communication.
The objective of the invention is problem, propose a kind of wireless access system, can solve the problem that the conventional fixed wireless access is faced based on public access mobile radio at the existence of said fixing wireless access.
Summary of the invention
This wireless access system is to realize like this, a kind of wireless access system based on public access mobile radio, form by local side apparatus and ustomer premises access equipment, local side apparatus is that the public mobile communication net (can be the second algebraically word cell mobile communication systemses such as GSM, CDMA, also can be 3G (Third Generation) Moblie systems such as W-CDMA, CDMA2000 or TD-SCDMA or the 4th generation and mobile communication system more of new generation etc.) in base transceiver station (BTS), ustomer premises access equipment is a kind of shared wireless subscriber unit and user terminal.Come from (individual cell in the zone, an or building residential building, an or hotel, an or small business etc.) a plurality of user terminals are connected in the corresponding shared wireless subscriber unit, and, be linked into the public mobile communication net by shared wireless user and the base transceiver station realization wireless connections that close on.Provide the corresponding communication service by the public mobile communication net by user's needs.The present invention as local side apparatus, utilizes conventional network resources with public mobile communication network, only needs to finish the ustomer premises access equipment construction with a small amount of input, promptly finishes the Radio Access Network construction.Make full use of conventional network resources, small investment, networking speed is fast.Simultaneously, do not take any new frequency resource.In addition, wave point can rely on existing standard, has solved typical problem.
Description of drawings
With reference to the accompanying drawings, by about detailed description of the present invention, can make above-mentioned and other features of the present invention, advantage apparent.
Fig. 1 is typical gsm mobile communication system structural representation;
Fig. 2 is typical point-to-point (multiple spot) wireless access structural representation;
Fig. 3 is a structural representation of the present invention;
Fig. 4 is a ustomer premises access equipment schematic diagram of the present invention.
Embodiment
Fig. 1 is typical gsm mobile communication system structural representation.The mobile communication system structure of different systems has certain difference, is example here with the gsm mobile communication system, gives briefly bright to the composition of mobile wireless connecting system.
The equipment of gsm system can be divided into exchange subsystem (SSS), base sub-system (BSS), travelling carriage (MS) and Operation and Maintenance subsystem (OSS) four parts and form.
Exchange subsystem (SSS) is made up of mobile switching centre (MSC), attaching position register (HLR), VLR Visitor Location Register (VLR), AUC (AUC), equipment identity register (EIR) etc.It is responsible for all call proceeding processing relevant with the mobile subscriber, mobility location management, subscriber equipment and security management function, and provides and the interconnect function of fixed communication network (as: PTN, ISDN etc.).
Base sub-system (BSS) mainly is made up of base station controller (BSC) and base transceiver station (BTS).Be responsible in the gsm system and systemic-function wireless and that transmission is relevant.As distribution, foundation and the release of RRM, wireless channel and handover etc.
Travelling carriage (MS) is the terminal equipment that the mobile subscriber inserts the GSM network.
Operation and Maintenance subsystem (OSS) mainly provides to the operation control of GSM network with to each subsystem carries out maintenance function, the general branch to the Operation and Maintenance (OMC-R) of base sub-system (BSS) with to exchanging the Operation and Maintenance (OMC-S) of subsystem (SSS).
The GSM digital cellular mobile communication systems obtain extensive use in the world, the commercial great success that obtained.
The cell mobile communication systems of other type has and the identical or similar structure of GSM digital cellular mobile communication systems, does not give unnecessary details at this.
Fig. 2 is typical point-to-point (multiple spot) wireless access structural representation.Composition to fixed wireless access system gives briefly bright below.
Point-to-point (multiple spot) wireless access system is general main to be made up of several sections such as controller 21, operation maintenance center 22, base station 23, fixed subscriber unit 24 and portable terminals 25.
The effect of controller 21 is that provide by it to be connected with these functional entitys with interface local switch 26, base station 23 and operation maintenance center 22.The major function of controller 21 is that the calling (comprise call setup, take out stitches etc.) of process user manages base station 23, by carrying out wireless channel control, base station monitors and fixed subscriber unit 24 and terminal 25 (comprising portable terminal) are monitored and manage in base station 23.
Operation maintenance center 22 is responsible for the operation and maintenance of whole wireless access system, and its major function is that whole system is managed for configuration, and the software and the various configuration data of each network element are operated.
The effect of base station 23 provide and fixed subscriber unit 24 and portable terminal 25 between wireless channel, and finish the transmission of voice call and data by wireless channel.
Fixed subscriber unit 24 can be divided into Single Subscriber Unit and multi-user unit.Single Subscriber Unit (SSU) can only connect a user terminal, is applicable to distance situation far away between the low user of user density.Multi-user unit then can be supported a plurality of user terminals, and under the very near situation of distance between the user (such as a user upstairs) is both economical for the general more common multi-user unit that 4,8,16 and 32 users of support are arranged, multi-user unit.
Portable terminal 25 possesses certain mobility, and the fixed wireless access system that has is supported portable terminal 25.
Fig. 3 is a structural representation of the present invention.
This connecting system comprises local side apparatus and ustomer premises access equipment.Local side apparatus is the base transceiver station 31 of public access mobile radio 30.Ustomer premises access equipment comprises shared wireless subscriber unit 32 and user terminal 33.Shared wireless subscriber unit 32 links to each other with a plurality of user terminals 33, and can be simultaneously provides access service with base transceiver station 31 to the multi-user, and shared wireless subscriber unit 32 is operated on the radio band identical with public access mobile radio.The service object of this connecting system is a principal character with home dwelling user and small office user.
Above described public access mobile radio 30 are general references to various global system for mobile communicationss, it comprises the mobile communication system etc. of 3G (Third Generation) Moblie system such as the second algebraically word cell mobile communication systems such as GSM, CDMA and W-CDMA, CDMA2000 or TD-SCDMA or following other communication system
Above described base transceiver station 31 belong to the part of public access mobile radio 30, link to each other with base station controller BSC (or radio network controller (RNC)) in the system and controlled by it, be operated on the public mobile communication radio band, connect for the user provides wireless access.
Above described ustomer premises access equipment structural representation as shown in Figure 4.Ustomer premises access equipment comprises shared wireless subscriber unit and user terminal 40.Wherein wireless subscriber unit comprises antenna 41, wireless transmit/receive units 42, control unit 43, reaches User Access Module 44 etc.
The effect of antenna 41 is transmitting-receivings of finishing radiofrequency signal.The radiofrequency signal that will come from wireless transmit/receive units 42 is launched to the base station with form of electromagnetic wave, and the electromagnetic wave that will come from the base station converts rf signal feed-in wireless transmit/receive units 42 to.
The main effect of wireless transmit/receive units 42 is modulation, signaling and the information processings of finishing to received signal etc. that mediation transmits of separating, and the quantity of the wireless processing module of wireless transmit/receive units 42 configurations can dispose arbitrarily according to terminal use's quantity and traffic carrying capacity.
The main effect of control unit 43 is connection managements of finishing between user and the wireless transmit/receive units 42, and is responsible for user identity is managed, and is responsible for the operation and maintenance of ustomer premises access equipment simultaneously.
User Access Module 44 is interfaces of user terminal 45 and control unit 43.Being connected and can realizing by wired mode between this module and the user terminal 45 also can realize by wireless mode, as: WLAN (wireless local area network) or Bluetooth technology etc.
Embodiment provided by the invention is the wireless access system based on gsm system.Do caller and called with user terminal respectively below,, the course of work of the present invention and operation principle are further described by description to these two flow processs that process experienced.
1) calling procedure user terminal off-hook sets up with the that is connected of control unit and proposes call request control unit and accept and distribute wireless channel user terminal to take wireless channel to start call flow (this process is identical with the process of GSM mobile termination access gsm system, comprising channel request, assignment immediately, CM service request, authentication, encryption, foundation etc.) converse end of conversation and on-hook mobile network of the other side's ring the other side off-hook both sides take out stitches, and channel discharges the control unit and regains the shared wireless channel of user terminal.
2) the called flow base station issues the beep-page message control unit response to related user terminal, control unit distributes wireless channel user terminal to take wireless channel to user terminal to enter access process (this process is identical with the access procedure of portable terminal, comprising channel request, assignment immediately, page response, authentication, encryption, foundation etc.) converse end of conversation and on-hook mobile network of user terminal ring off-hook both sides take out stitches, and channel discharges the control unit and regains the shared wireless channel of user terminal.
Compare with common mobile terminal, the user is connected with the mobile network by shared wireless subscriber unit and has following advantage:
1) low cost.Shared wireless subscriber unit is owing to be shared between the multi-user at hardware aspect, thereby it is minimum to be expected to make the cost of dividing each user to accomplish.
2) the big covering.Shared wireless subscriber unit is by erecting a television antenna outdoor, and particularly gain directional antenna has been expanded communication distance greatly, improves mobile network's covering.
3) high-quality.Under the certain condition of distance, because uplink and downlink signals intensity improves, to add multipath effect and weaken, signal transfer quality obviously is better than common mobile terminal, and the integrated communication quality improves.
4) radiationless.There is not radiation problem in wireless device outdoor, can eliminate the doubt of people to microwave radiation.This point also is to make in family or office to use wireless access way communication to be easier to accept.
5) resource occupying is few.Shared wireless subscriber unit is fixed, thereby the base station of inserting also fixes, and has removed business such as a large amount of position renewal, switching from, therefore, under the situation of not having business, does not take any Internet resources.
Compare with the conventional fixed wireless access, there is following advantage in the present invention:
1) do not need the demand frequency resource.Owing to rely on public mobile communication system, user side employed wireless frequency when inserting the mobile base station is in full accord with general mobile communication terminal, thereby there is not the frequency resource problem in this connecting system.
2) use existing interface standard.Because the interface standard that user side uses on wave point is equal to the air interface standard of general portable terminal and base station fully, thereby, the equipment development input can be reduced, and the investment of operator can be protected to greatest extent.
3) networking drops into low.Generally speaking, typical fixed wireless access system mainly is made up of several sections such as controller, operation maintenance center, base station and fixed subscriber units, and wherein, controller, operation maintenance center, base station belong to local side apparatus.This connecting system owing to be to utilize existing mobile network appliance, thereby does not need local side apparatus is remake investment in networking, and only need set up ustomer premises access equipment and get final product, therefore, be the minimum wireless access system of networking cost.Simultaneously, can realize remote operation by wave point to the Operation and Maintenance of user side, very convenient.
4) investment repayment is big.Because network construction cost is very low, simultaneously, also be the resource of utilizing mobile communications network better, some samll cities and towns particularly, the service in base station flow is also smaller.Thereby for the mobile network, these business are " increment " business, thereby for the investment number, the investment repayment of this connecting system is bigger.
5) Feng Fu business.Native system can provide that all mobile communication system of comprising voice, data, note, mobile IP have had to residential customer with any business that will increase future.
6) service object's scope is wideer.Increase along with mobile communication business, as insert mobile Internet for the user based on wireless IP, and the continuous increase of access bandwidth, the present invention both can be used as and had solved vast rural area, the difficult problem of the communication of backward areas particularly, also can be used as the communication solution of city dweller and medium-sized and small enterprises, especially the area of Wireline anxiety and pipe laying difficulty.Has vast market prospect.
The present invention inserts mobile wireless with fixed wireless access and organically combines, and has fundamentally broken through the traditional thought that mobile communications network is only served the mobile subscriber, and making the mobile network serve fixed-line subscriber becomes possibility.Utilize existing mobile network, expand, realize expanding and extending of mobile network's business by low cost.
Utilize the public mobile communication network to have nationwide such characteristics that cover,, can solve effectively and comprise vast rural area, particularly fall behind, backwoodsman general communication issue by means of this connecting system.Have good social benefit, simultaneously, this connecting system has also promoted further developing of mobile network more when bringing economic interests to mobile operator.
The front provides the description to preferred embodiment, so that any technical staff in this area can use or utilize the present invention.Various modifications to these embodiment are conspicuous to those skilled in the art, can be applied to other embodiment to total principle described here and not use creativeness.Thereby, the embodiment shown in the present invention will be not limited to here, and the wide region of principle that should disclose and new feature according to meeting here.
Claims (6)
1, a kind of wireless access system based on public access mobile radio, described system comprises local side apparatus and ustomer premises access equipment, described local side apparatus is the base transceiver station of public access mobile radio, it is characterized in that, described base transceiver station belongs to the part of described public access mobile radio, link to each other with controller in the system and controlled by it, be operated on the public mobile communication radio band, connect for the user provides wireless access; Described ustomer premises access equipment comprises shared wireless subscriber unit and user terminal, described shared wireless subscriber unit links to each other with a plurality of user terminals, access service with described base transceiver station is provided can be simultaneously for a plurality of users, described shared wireless subscriber unit is operated on the radio band identical with described public mobile communication.
2, wireless access system according to claim 1, it is characterized in that described public access mobile radio comprises the mobile communication system of 3G (Third Generation) Moblie system such as the second algebraically word cell mobile communication systems such as GSM, CDMA and WCDMA, CDMA2000, TD-SCDMA or following other communication system etc.
4, wireless access system according to claim 1 is characterized in that, described controller comprises base station controller or radio network controller.
5, wireless access system according to claim 1 is characterized in that, described shared wireless subscriber unit comprises antenna, wireless transmit/receive units, control unit and User Access Module, wherein:
Antenna is used to finish the transmitting-receiving of radiofrequency signal, and the radiofrequency signal that will come from wireless transmit/receive units is launched to the base station with form of electromagnetic wave, and the electromagnetic wave that will come from the base station simultaneously converts rf signal feed-in wireless transmit/receive units to;
The main effect of wireless transmit/receive units is modulation, signaling and the information processing of finishing to received signal etc. that mediation transmits of separating;
The main effect of control unit is the connection management of finishing between user and the wireless transmit/receive units, and is responsible for user identity is managed, and is responsible for the operation and maintenance to ustomer premises access equipment simultaneously;
User Access Module is used to connect user terminal and control unit.
6, wireless access system according to claim 5 is characterized in that, described User Access Module can be realized by wired mode with both being connected of user terminal, and also can realize by wireless mode.
7, wireless access system according to claim 5 is characterized in that, the quantity of the wireless processing module that is disposed in the described wireless transmit/receive units can dispose arbitrarily according to terminal use's quantity and traffic carrying capacity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01126393 CN1400746A (en) | 2001-08-03 | 2001-08-03 | Wireless access system based of pubric mobile communication system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01126393 CN1400746A (en) | 2001-08-03 | 2001-08-03 | Wireless access system based of pubric mobile communication system |
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| CN1400746A true CN1400746A (en) | 2003-03-05 |
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| CN 01126393 Pending CN1400746A (en) | 2001-08-03 | 2001-08-03 | Wireless access system based of pubric mobile communication system |
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