CN101365185A

CN101365185A - Base station, method and mobile communication system implementing return data transmission

Info

Publication number: CN101365185A
Application number: CNA2007101200378A
Authority: CN
Inventors: 赵志勇; 宗柏青
Original assignee: ZTE Corp
Current assignee: ZTE Corp
Priority date: 2007-08-07
Filing date: 2007-08-07
Publication date: 2009-02-11
Anticipated expiration: 2027-08-07
Also published as: CN101365185B

Abstract

The invention provides a base station, a method and a mobile communication system for realizing the returning data transmission. The base station is arranged in the mobile communication network, and communicates with other base stations and/or BSC in a cascade connection manner; the base station further comprises MSB TRX used for utilizing the wireless resources to send the returning data towards the uplink transmission direction where the BSC is located to the base station of high level routing node, or receiving the returning data from the base station of the lower level routing node; and/or SSB TRX used for utilizing the wireless resources to return data from MSB TRX of the base station of the low level routing node, or sending the returning data to MSB TRX of the base station of the high level routing node; and a control management interference unit connected with the MSB TRX, the SSB TRX and/or the BSC of the base station respectively, so as to achieve the signal protocol disposal and returning data exchange between various dedicated transceiver and between the base station and the BSC.

Description

A kind of base station, method and mobile communication system that realizes the backhaul data transmission

Technical field

The present invention relates to station technology in the moving communicating field, particularly a kind of is to adopt band interior base station apparatus and method from backhaul (Self-Backhaul) technology.

Background technology

Mobile communication is one of most active branch in the communications field, also is the current communication technology with fastest developing speed.Along with the development and the maturation of mobile communication, telecom charges are more and more lower, and operator is also more and more responsive to the cost of auxiliary facilities such as base station equipment and transmission.Along with the base station equipment cost constantly reduces, the shared proportion of the cost of the transmission link between base station and the base station controller is increasing.

At present, transmission aspect between base station and base station controller, this transfer of data in the industry cycle becomes backhaul (Backhaul) transfer of data traditionally, most of producer adopts transmission meanss such as E1, SDH optical fiber, microwave, as shown in Figure 1, base station 100 (BTS1, BTS2 and BTS3) all directly and base station controller BSC 200 communicate.And the transmission link of the backhaul data between each base station 100 and the base station controller 200 all is independently, and it is very high to pay cost.

The solution of transmission depends primarily on the complexity of transmission engineering, need build a station fast at some, and set up the inconvenient occasion of cable and optical cable, little as telephone traffic, with a varied topography mountain area, edge, the desert, zones such as grassland, wire transmission cost height, speed are slow, become the bottleneck of building a station.Though use wireless transmission methods such as microwave or leased satellite link can solve transmission problem, but, adopt microwave need depend on third-party equipment, outdoor utility, the engineering that needs to solve transmission equipment cooperates and frequency range application or the like problem, and satellite link is very expensive.

Summary of the invention

For addressing the above problem, the object of the present invention is to provide a kind of mobile communication system and method that realizes the backhaul data transmission, to solve the too high problem of transmission link construction cost between base station and base station controller.

For achieving the above object, the present invention proposes a kind of base station of realizing backhaul data transmission, be arranged in the mobile communication network, communicate by cascade system and other base stations and/or base station controller, wherein, this base station further comprises:

The master is used to utilize Radio Resource from backhaul transceiver, and the uplink direction to described base station controller place sends the base station of backhaul data to higher level's routing node, perhaps receives the backhaul data of sending from the base station of subordinate's routing node; And/or

Subordinate is used to utilize described Radio Resource from backhaul transceiver, receives the backhaul data that the master of the base station of subordinate's routing node sends from backhaul transceiver, perhaps send backhaul data to the master of the base station of higher level's routing node from backhaul transceiver; With

One control and management interface unit, be connected respectively from backhaul transceiver and/or described base station controller from backhaul transceiver, subordinate with the master in the described base station, finish between the various transceivers and processing of the signaling protocol between described base station and the base station controller and backhaul data exchange.

The base station of above-mentioned realization backhaul data transmission, wherein, described base station further comprises:

Normal transceiver is connected with described control and management interface unit, is used for communicating with the portable terminal of sub-district, place, described base station, receives the wireless signal that described portable terminal sends, and generates the backhaul data of described base station self.

The base station of above-mentioned realization backhaul data transmission, wherein, described normal transceiver is one or more, and described master is one or more from backhaul transceiver, and described subordinate is one or more from backhaul transceiver.

The base station of above-mentioned realization backhaul data transmission, wherein, described master uses identical Radio Resource with described subordinate from the backhaul transceiver up direction from the backhaul transceiver down direction; Perhaps

Described master uses identical Radio Resource with described subordinate from the backhaul transceiver down direction from the backhaul transceiver up direction.

The base station of above-mentioned realization backhaul data transmission, wherein, described Radio Resource further comprises: frequency band, time slot or code channel.

For achieving the above object, the present invention also provides a kind of method that realizes the backhaul data transmission, wherein, comprises the steps:

Step 1 determines that each base station transmits the routing relation of backhaul data in cascade system and between the base station controller;

Step 2, in each base station configuration main from backhaul transceiver and/or subordinate from backhaul transceiver, make the master in the base station that lays respectively at adjacent routing node use identical Radio Resource with subordinate from backhaul transceiver, the described backhaul data of corresponding transmission from backhaul transceiver;

Step 3 with the base station of described base station controller cascade, with the backhaul data that send the base station of subordinate's routing node, is sent to described base station controller.

The method of above-mentioned realization backhaul data transmission, wherein, described step 1 further comprises:

Step 71 is calculated the backhaul data capacity of other base stations of receiving as the routing node of backhaul data transmission described base station, and the step of described base station self backhaul data capacity;

Step 72, according to the backhaul data capacity of described base station needs transmission and main, need in the described base station to determine the master that disposes from backhaul transceiver and subordinate quantity from backhaul transceiver from backhaul transceiver and subordinate ability from the transmission backhaul data of backhaul transceiver.

Configuration is main from the initiator of backhaul transceiver as up backhaul data, and subordinate is from the step of backhaul transceiver as the recipient of up backhaul data; Perhaps

The configuration subordinate is from the initiator of backhaul transceiver as up backhaul data, and is main from the step of backhaul transceiver as the recipient of up backhaul data.

The method of above-mentioned realization backhaul data transmission, wherein, from the initiator of backhaul transceiver as up backhaul data, during as the recipient of up backhaul data, described step 2 further comprises subordinate from backhaul transceiver when main:

Subordinate's routing node base station backhaul data treatment step, the subordinate in the base station receive the master of subordinate routing node base station from reclaiming the backhaul data that sender is sent from up direction from backhaul transceiver, be forwarded to the control and management interface unit;

Routing node at the corresponding levels base station backhaul data treatment step, the normal transceiver in the described base station receive the backhaul data of base station self of the mobile terminal reporting of sub-district, place, described base station, are forwarded to described control and management interface unit; And/or

Backhaul data is uploaded step, whole backhaul data that described control and management interface unit will be received, be sent to described master from backhaul transceiver, described master is sent to described whole backhaul data subordinate in the adjacent upper level routing node base station from backhaul transceiver from backhaul transceiver.

The method of above-mentioned realization backhaul data transmission, wherein, when subordinate from the initiator of backhaul transceiver as up backhaul data, main from backhaul transceiver during as the recipient of up backhaul data, described step 2 further comprises:

Subordinate's routing node base station backhaul data treatment step, the master in the base station receives the backhaul data that the subordinate in the subordinate routing node base station is sent from up direction from backhaul transceiver from backhaul transceiver, is forwarded to the control and management interface unit;

Backhaul data is uploaded step, whole backhaul data that described control and management interface unit will be received, be sent to described subordinate from backhaul transceiver, described whole backhaul data be sent to master in the adjacent upper level routing node base station from backhaul transceiver from backhaul transceiver by described subordinate.

The present invention also provides a kind of mobile communication system that realizes above-mentioned any method, comprises base station controller and a plurality of base station, and described a plurality of base stations communicate by cascade system and described base station controller, and wherein, described base station further comprises:

Main from backhaul transceiver, be used to utilize Radio Resource, to the uplink direction at base station controller place send backhaul data to the base station of higher level's routing node, perhaps receive the backhaul data of sending from the base station of subordinate's routing node; And/or

Subordinate is used to utilize described Radio Resource from backhaul transceiver, receives the backhaul data that the master of the base station of subordinate's routing node sends from backhaul transceiver, and perhaps the master to the base station of higher level's routing node sends backhaul data from backhaul transceiver; With

The base station equipment of Self-backhaul technology in the employing band provided by the invention, need not to lay cable, need not to introduce other transmission equipments, success solves between base station and the base station, and the transmission problem between base station and the base station controller, be particularly suitable for low capacity, the complicated environment of building a station is laid in transmission.

In backhaul technologies and band, possesses the similar wireless transmission capability of microwave in the band that the present invention adopts from the backhaul base station, but need not to buy third party's microwave equipment, transmission is integrated with main equipment, do not deposit the matching problem of equipment room, easy to maintenance, management also can unify to include in the wireless webmaster of main equipment, need not to apply for microwave frequency band, or rent third party's transmission equipment, and maintenance cost is low, and transmission equipment and BTS hardware are integrated, the transmission carrier frequency has identical physical size and outdoor utility ability with conventional carrier frequency, need not to consider the outdoor utility environment, make main equipment and transmission primaries solution in the networking, improved networking speed greatly for transmission equipment.

Description of drawings

Fig. 1 is traditional base station and the base station interconnection schematic diagram between the base station controller;

Fig. 2 is the interior schematic diagram from the backhaul base station apparatus of band of the present invention;

Fig. 3 is the schematic flow sheet that the present invention realizes base station backhaul data transmission;

Fig. 4 is the interior schematic diagram of realizing base station interconnection from backhaul technologies of the band of the embodiment of the invention.

Embodiment

Band is interior between the core concept of backhaul technologies is meant original base station and base station, perhaps the backhaul data between base station and the base station controller is transmitted by the radio channel that base station itself has, this identical with band resource between base station and the terminal from the employed frequency resource of backhaul radio channel, do not take other frequency resource.Therefore, the present invention claims that this technology is that band is interior from backhaul technologies, claims this base station interior from the backhaul base station for band, or Stand-Alone Base station (SA BTS).

As shown in Figure 2, the mobile communication system of realization backhaul data transmission provided by the invention, this system comprise a plurality of SA BTS (Stand-Alone Base station, band is interior from the backhaul base station) 100 and base station controller BSC 200.The base station apparatus SA BTS100 of Self-backhaul technology mainly comprises in the employing band of the present invention: main from backhaul transceiver (Master Self-Backhaul TRX, be abbreviated as MSB TRX) 110, subordinate is from backhaul transceiver (Slave Self-Backhaul TRX, be abbreviated as SSB TRX) 120, normal transceiver (Normal TRX) 130 and control and management interface unit (ControlManagement and Interface Unit is abbreviated as CMIU).

Normal TRX130 is identical with the transceiver of traditional base station, be used for communicating by letter with mobile terminal device, Normal TRX130 sends to portable terminal according to the signal of communication protocol with base station controller 200 or network side, and the wireless signal that mobile terminal receive sends sends base station controller 200 or other network equipments then to.Generally speaking, Normal TRX130 will make protocol processes to the signal of up-downgoing, makes it be suitable for the transmission requirement of wireless mouth and network side.

SSB TRX120 to transmit and receive part in full accord with Normal TRX130, the effect of SSBTRX120 is to communicate by letter from the MSB of backhaul base station TRX110 in the band with other cascades.Because the frequency band aspect of SSB TRX120 and Normal TRX130 physical structure and use is in full accord, both can replace mutually.Normal TRX130 can be configured as SSB TRX120 as required, finishes the communication task with MSB TRX110, and same, SSB TRX120 also can be configured as Normal TRX130 as required, finishes the communication work with portable terminal.

To transmit and receive the Radio Resource that part uses identical with SSB TRX120 (or Normal TRX130) respectively for the Radio Resource that the reception of MSB TRX110 and radiating portion use, and described Radio Resource comprises frequency band, time slot or code channel etc.MSB TRX110 down direction uses identical Radio Resource with SSB TRX120 up direction, and the up direction of MSB TRX110 uses identical Radio Resource with the descending side of SSB TRX120.Therefore, the signal of SSB TRX120 emission can be received by MSB TRX110, and the signal of MSB TRX110 emission can be received by SSB TRX120.Though, the up-downgoing Radio Resource of the Radio Resource of MSB TRX110 up-downgoing and SSB TRX120 (or Normal TRX130) is just the opposite, but, from up-downgoing all in all, the employed Radio Resource of transmission backhaul data does not exceed the scope that whole base station standard radio mouth allows to take resource between MSB TRX110 and the SSB TRX120.Only use base station self radio resource with one or more pairs of MSB TRX110 and SSB TRX120 by wireless mode transmission backhaul data, therefore, the present invention is referred to as in the band from backhaul technologies.

CMIU140 is as control, management and interface unit mainly are responsible for the configuration of MSB TRX110, SSBTRX120 and Normal TRX130, management and control are finished and are received between three kinds of transceivers and the exchange of processing of the signaling protocol between transceiver and the base station wireline interface and backhaul data etc.

Owing to send and receive backhaul data by radio channel from backhaul technologies in the band, therefore, the transceiver that is used to receive and dispatch backhaul data must be corresponding, promptly on a SA BTS100, there are MSBTRX110 or SSB TRX120, on the SA of cascade with it BTS100, SSB TRX120 or MSB TRX110 must be arranged so, like this, could realize the interior backhaul data transmission channel of band from the backhaul base station.

As shown in Figure 2, the structural representation of SA BTS100, the interface of its correspondence with foreign country mainly contains three kinds, the one, wave point 107, the Normal TRX110 of SA BTS100 realizes and communications of Mobile Terminals by this wave point, this interface meets the regulation of general wireless communication protocol, as 3GPP, and IEEE802.16 etc.; The 2nd, wave point 106, the SSB TRX120 of SA BTS100 communicates by letter by the MSB TRX110 among other SA BTS100 of 106 interfaces and cascade, receive and dispatch from backhaul data in being with, the MSB TRX110 of SA BTS100 communicates by letter by the SSBTRX120 among other SA BTS100 of 106 interfaces and cascade, receive and dispatch from backhaul data in being with, frequency band and interface 107 that wave point 106 up-downgoings are used are just the opposite, but do not use the frequency outside the 107 Radio interface protocols regulation; The 3rd, wireline interface 104, SA BTS100 can communicate by letter with base station controller 200 by this interface, and interface 104 is connected on the CMIU140.

In SA BTS100 inside, base station, Normal TRX130 is connected with CMIU140 by inner wireline interface 101, and SSB TRX120 communicates by letter with CMIU140 by wireline interface 102, and MSBTRX110 is communicated with CMIU140 by wireline interface 103.

In backhaul base station 100, the signal of any class external interface can exchange to the external interface of other types by control Fabric Interface processing unit 140 in band shown in Figure 2.For example the up-downgoing data of wave point 107 can be transferred to CMIU140 by 101 interfaces, can (1) be transferred to SSB TRX120 after handling through CMIU140, being transferred among the MSB TRX110 of other SABTS100 of cascade by interface 106 again through interface 102; (2) be transferred to MSB TRX110 through interface 103, be transferred among the SSB TRX110 of other SA BTS100 of cascade by interface 106 again; (3) directly send to base station controller 200 through interface 104.Same, the external interface of other types also can be handled and exchange to the up-downgoing data of interface 106,104 by CMIU140.

As shown in Figure 3, for adopting flow process and the method that realizes base station interconnection in the band from backhaul technologies.Comprise the steps:

Step S301 determines to use the interior topological relation from the SA of backhaul technologies BTS100 of band, the routing relation of backhaul data transmission between clear and definite each SA BTS100 and the base station controller 200.

Step S302 is according to the backhaul data capacity of each SA BTS100 needs transmission of topological relationship calculation.The backhaul data capacity that SA BTS100 need transmit comprises two parts, and the one, with the backhaul data of this SA BTS100 as other base stations of backhaul transport route, the 2nd, this base station self backhaul data.

Step S303, according to the backhaul data amount of SA BTS100 needs transmission and the ability of MSB TRX110 and SSB TRX120 transmission backhaul data, determine MSBTRX110 that this SA BTS100 need dispose or the quantity of SSB TRX120, different SA BTS100 can comprise MSBTRX110 and/or the SSB TRX120 that number is different.

In addition, for the undermost SA BTS100 of route MSB TRX110 or the SSBTRX120 initiator as the backhaul data of up direction can only be set, SA BTS100 for the route the superiors also can only be provided with MSB TRX110 or SSB TRX120, as the recipient of up backhaul data, but to guarantee MSB TRX110 and the corresponding relation of SSB TRX120 in the backhaul data transmission all the time.

Step S304, configuration MSB TRX110 and SSB TRX120 on SA BTS100, the principle of configuration is that the MSB TRX110 of adjacent backhaul data routing node must be corresponding with SSB TRX120, and, the Radio Resource that MSB TRX110 and SSB TRX120 use not with the Radio Resource mutual interference mutually of Normal TRX130.Can be with the initiator of MSB TRX110 as up backhaul data, SSBTRX120 is as the recipient of up backhaul data.MSB TRX110 can be placed on the SA BTS100 of subordinate's routing node, and SSB TRX120 is placed on the SA BTS120 of higher level's routing node, both data transmission capabilities coupling.Up direction described here is the transmission direction of backhaul data to base station controller.

Step S305 is transferred to SA BTS100 or base station controller 200 as higher level's backhaul route with the backhaul data of the needs transmission wave point by MSB TRX110 or SSB TRX120.

According to the relation of network topology as shown in Figure 4, and method step shown in Figure 3, this embodiment specifically comprises the steps:

Step 41 is determined the routing relation of transmitting from backhaul data in the band.The backhaul data of SA BTS3 (100) need be passed through SA BTS2 (100) route, is transferred to SA BTS1 (100) then, is transferred to base station controller BSC at last again.Wherein, the backhaul data of SA BTS3 (100) and SA BTS2 (100) is by transmitting from backhaul technologies in the band, and SA BTS1 (100) is directly by wired mode and base station controller 200 transmission backhaul data.

Step 42, the backhaul data amount of calculating SA BTS100, the backhaul data capacity of SA BTS3 (100) equals the backhaul data that all Normal TRX130 need among the SA BTS100; The backhaul data that SA BTS2 (100) needs the backhaul data of transmission to equal SA BTS3 (100) adds the backhaul data sum of Normal TRX130 among the SA BTS2 (100); SA BTS1 (100) needs the backhaul data of transmission to equal the backhaul data of SA BTS1 and SA BTS2 and the backhaul data sum of the middle Normal TRX130 of SA BTS3 (100).

Step 43, according to the SSB TRX120 and the MSB TRX110 wave point transmittability of transmission, SSB TRX120 that calculating SA BTS100 need dispose or the number of MSB TRX110.For example dispose n1 MSB TRX110 among the SABTS3 (100), can satisfy the capacity requirement of SA BTS1 (100) backhaul data transmission, so, must with SA BTS1 (100) higher level's backhaul route point SA BTS2 (100) in n2 SSB TRX120 of configuration, wherein the data transmission capabilities of n1 MSB TRX110 and n2 SSBTRX120 mates.N3 MSB TRX110 of configuration in SA BTS2 (100), the ability of its transmission backhaul data equals Normal TRX130 backhaul data amount sum among n2 SSB TRX120 data volume and the SA BTS2 (100).In SA BTS1 (100), dispose n4 SSB TRX120 and be used to receive the backhaul data that SA BTS100 sends.The backhaul data of all Normal TRX130 all is transferred to base station controller 200 by wire link among the backhaul data of n4 SSB TRX120 and the SABTS1 (100).

Step 44, MSB TRX110 and SSB TRX120 are configured among each SA BTS100.With SABTS2 (100) is the processing that example specifies returned signal in the base station, n2 SSB TRX100 receives the backhaul data of SA BTS1 (100) by wave point 106, be transferred to CMIU140 by interface 102 then, the backhaul data of the Normal TRX130 that SA BTS2 (100) is local also is transferred to CMIU140 by 101 interfaces, CMIU140 handles the back with two kinds of backhaul data and is transferred to n3 MSB TRX110 by interface 103, and then sends to by wave point 106 among the SSB TRX120 of higher level's routing node SA BTS1 (100).

The clock that SA BTS100 needs can extract by GPS or from wave point.

Certainly; the present invention also can have other various embodiments; under the situation that does not deviate from spirit of the present invention and essence thereof; being familiar with those of ordinary skill in the art ought 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 the appended claim of the present invention.

Claims

1. a base station of realizing backhaul data transmission is arranged in the mobile communication network, communicates by cascade system and other base stations and/or base station controller, it is characterized in that this base station further comprises:

2. the base station of realization backhaul data transmission according to claim 1 is characterized in that described base station further comprises:

3. the base station of realization backhaul data transmission according to claim 1 and 2, it is characterized in that, described normal transceiver is one or more, and described master is one or more from backhaul transceiver, and described subordinate is one or more from backhaul transceiver.

4. the base station of realization backhaul data transmission according to claim 1 is characterized in that, described master uses identical Radio Resource with described subordinate from the backhaul transceiver up direction from the backhaul transceiver down direction; Perhaps

5. the base station of realization backhaul data transmission according to claim 4 is characterized in that described Radio Resource further comprises: frequency band, time slot or code channel.

6. a method that realizes the backhaul data transmission is characterized in that, comprises the steps:

7. the method for realization backhaul data transmission according to claim 6 is characterized in that described step 1 further comprises:

8. the method for realization backhaul data transmission according to claim 6 is characterized in that described step 1 further comprises:

9. the method for realization backhaul data transmission according to claim 8, it is characterized in that, from the initiator of backhaul transceiver as up backhaul data, during as the recipient of up backhaul data, described step 2 further comprises subordinate from backhaul transceiver when main:

10. the method for realization backhaul data transmission according to claim 8, it is characterized in that, when subordinate from the initiator of backhaul transceiver as up backhaul data, main from backhaul transceiver during as the recipient of up backhaul data, described step 2 further comprises:

11. a mobile communication system that realizes any method in the claim 6 to 10 comprises base station controller and a plurality of base station, described a plurality of base stations communicate by cascade system and described base station controller, it is characterized in that, described base station further comprises: