CN1863002B - Wireless relay apparatus and wireless communication system - Google Patents
Wireless relay apparatus and wireless communication system Download PDFInfo
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- CN1863002B CN1863002B CN2005100807223A CN200510080722A CN1863002B CN 1863002 B CN1863002 B CN 1863002B CN 2005100807223 A CN2005100807223 A CN 2005100807223A CN 200510080722 A CN200510080722 A CN 200510080722A CN 1863002 B CN1863002 B CN 1863002B
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Abstract
The invention provides the wireless relay apparatus and the wireless communicating system. The said wireless relay apparatus includes the wireless transferring dealing cell and the changing cell, the said wireless transferring dealing cell are used to receive the wireless signal send by the original base station and hand it to the changing cell; the said changing cell are used to choose the target base station for the wireless signal send by the said original base station, and the said wireless signal can be send to the target base station. The said wireless communicating system include the wireless relay and the base station, the said wireless signal can connect and communicate through the wireless relay apparatus. The invention makes the new build base station to support the wireless connection, so even the wire connection between the newly build base station and the other base station has the failure, it can be assured to join the community, it can avoid the disturbing to the other base station or the user in the cover adding area. At the same time, the problem of the complicated wire connection between the base stations can be solved.
Description
Technical field
The present invention relates to wireless communication technology field, relate in particular to a kind of wireless transferring equipment and wireless communication system.
Background technology
But IEEE 802.16h standard is exempted from licensed band or the shared band in order to be supported in, and system has defined the network architecture as Fig. 1 with co-channel or adjacent channel coexistence.Comprising: the base station (BS), certificate server (as radius server) and the share service device (as CIS) that have shared data bank (Shared DB).IEEE 802.16h is defined as a base station " community (Community) " with one group of BS with the networking of Ad-hoc pattern, interconnection mutually between " community " interior base station, as the BS1 among Fig. 1, BS2 and BS3, to visit the mutual shared data bank message (message) relevant with transmitting coexistence, BS in " community " will interconnect with certificate server and share service device, and certificate server and share service device interconnect.
IEEE 802.16 is first broadband wireless access standard, mainly contains two versions: the broadband fixed wireless of 802.16 standards inserts version, and the broadband mobile wireless of 802.16-2004 (being called for short " 16d ") and 802.16 standards inserts version, is called for short " 16e ".This standard has only defined the physical layer and the data link layer of base station and subscriber station, and described data link layer is that MAC (medium access control) layer is divided into the specific convergence sub-layer of service, MAC common part sublayer again and encrypts the sublayer.
According to the definition of IEEE 802.16 standards, 802.16 system configurations as shown in Figure 2, its base station only can link to each other with wireless with subscriber station (SS), so the interconnection between " community " interior base station only can be by wired realization in Fig. 1 network architecture of IEEE 802.16h definition.When base station number in " community " was big, the wired connection between the base station will be quite complicated.
In addition, suppose that a newly-established base station can't support wired connection, or the wired connection fault of itself and other base station, but must adopt when newly-established base station and to exempt from licensed band or shared band and other base station in co-channel interference or adjacent when coexisting under disturbing frequently, because it can't be communicated by letter with the share service device with other base station, certificate server in " community ", and cause to join in " community ", the result will cause in covering overlap-add region the interference to other base station or subscriber station, for example regional A and B among Fig. 1.
And, if in-situ match in popular international movement meeting, will cause the number of wireless users surge, the capacity that has exceeded original base station, at this moment, the mobile base station may promptly be alloted by operator, form with Vehicle mounted station reaches in-situ match, shift along with the transfer in competition field,, thereby be not suitable for laying wired cable for connection because the base station is that move and interim the setting.
Summary of the invention
In view of above-mentioned existing in prior technology problem, the purpose of this invention is to provide a kind of wireless transferring equipment and wireless communication system, thereby can satisfy the flexible demands in the wireless communication system by wireless interconnected between the base station in the realization wireless communication system.
The objective of the invention is to be achieved through the following technical solutions:
The invention provides a kind of wireless transferring equipment, comprising:
The wireless transmission processing unit: the wireless signal that the reception sources base station equipment sends is also given crosspoint; Described wireless transmission processing unit is at least a with frequency wireless transmission processing unit of at least a pattern;
Crosspoint:, and described wireless signal is sent to the purpose base station for the wireless signal that described source base station equipment is sent is selected the purpose base station;
When described wireless transferring equipment adopts the support of many transceivers to work with frequency range different mode base station, communicate by letter with each base station equipment by the directional antenna that isolation is enough;
When described wireless transferring equipment adopts single transceiver support to work with frequency range model identical base station, communicate by letter with each base station equipment by different subchannels or sub carrier group.
Described wireless transmission processing unit comprises:
The radio physical layer transmission unit: respectively with wireless data link layer and base station in the radio physical layer transmission unit communicate;
Wireless data link layer transmission unit:, communicate by letter with other radio link layer transmission units by crosspoint by communicating between radio physical layer transmission unit and base station.
Described crosspoint is connected between radio physical layer transmission unit and the wireless data link layer transmission unit, perhaps be arranged at the wireless data link layer, be connected with wireless data link layer transmission unit, perhaps, can also be arranged at that the wireless data link layer is above to be connected with the processing unit of equivalent layer.
Described wireless transferring equipment also comprises:
The subscriber station processing unit: the user terminal in the system is by communicating between this subscriber station processing unit and wireless transmission processing unit and the base station, and/or subscriber station processing unit self is by communicating between wireless transmission processing unit and the base station.
Described wireless transferring equipment also comprises:
Base station processing unit: by communicating between this base station processing unit and wireless transmission processing unit and the subscriber station.
Described crosspoint is also by the base station communication in wire transmission processing unit and the communications cable and the system.
The present invention also provides a kind of wireless communication system, comprises aforesaid wireless transferring equipment and one group of base station, between described one group of base station by wireless transferring equipment interconnected communication.
Among the present invention, when comprising base station processing unit in the described wireless transferring equipment, then described wireless transferring equipment also with system in subscriber station communicate by letter by wireless connections, and also comprise wired transmission processing unit in the described wireless transferring equipment, be used for being connected with upper level equipment by wired.
Among the present invention, in described wireless transferring equipment, comprise the subscriber station processing unit, then described wireless transferring equipment also with system in user terminal communicate by letter by wireless connections.
Described wireless transferring equipment is communicated by letter by wireless connections with the base station of one group of different mode respectively.
The base station of same pattern comprises one at least in the base station of described one group of different mode.
Described wireless transferring equipment is fixed or is moved and is arranged in the wireless communication system.
As seen from the above technical solution provided by the invention, the invention enables newly-established base station to support wireless connections, thereby when guaranteeing the wired connection fault when newly-established base station and other base station, still can add " community " smoothly, avoid in covering overlap-add region, interference being caused in other base station or subscriber station.Simultaneously, solved the problem of wired connection complicated layout between the base station.
Description of drawings
Fig. 1 is a 802.16h system network architecture schematic diagram;
Fig. 2 is an annexation schematic diagram between base station and subscriber station among Fig. 1;
Fig. 3 is the 802.16h schematic network structure 1 based on RSS provided by the invention;
Fig. 4 is the 802.16h schematic network structure 2 based on RSS provided by the invention;
Fig. 5 is the layer two RSS system configuration schematic diagram of multi-transceiver;
Fig. 6 is the layer two RSS system configuration schematic diagram of single-transceiver;
Fig. 7 is the layer one RSS system configuration schematic diagram of multi-transceiver;
Fig. 8 is the layer one RSS system configuration schematic diagram of single-transceiver;
Fig. 9 is for introducing the 802.16h schematic network structure 1 of RBS;
Figure 10 is for introducing the 802.16h schematic network structure 2 of RBS;
Figure 11 is for introducing the 802.16h schematic network structure 3 of RBS;
Figure 12 is the layer two RBS system configuration schematic diagram of multi-transceiver;
Figure 13 is the layer two RBS system configuration schematic diagram of single-transceiver;
Figure 14 is the layer one RBS system configuration schematic diagram of multi-transceiver;
Figure 15 is the layer one RBS system configuration schematic diagram of single-transceiver.
Embodiment
Core of the present invention is to introduce transferring equipment in wireless communication system, realizes wireless intercommunication between the base station by described transferring equipment, thereby makes things convenient for the base station to tear down and build demand flexibly, and can simplify wired connection relation between the base station of wireless communication system.
Transferring equipment of the present invention comprises wireless transmission processing unit and crosspoint, and described wireless transmission processing unit comprises radio physical layer transmission unit and wireless data link layer transmission unit.
Described each unit specifically describes as follows:
Described radio physical layer transmission unit: respectively with wireless data link layer and base station in the radio physical layer transmission unit communicate;
Described wireless data link layer transmission unit:, communicate by letter with other wireless data link layer transmission units by crosspoint by communicating between radio physical layer transmission unit and base station;
Described crosspoint:, and described wireless signal is sent to the purpose base station for the wireless signal that described source base station equipment is sent is selected the purpose base station.
Can also comprise subscriber station or base station functions in the described transferring equipment, that is to say, described transferring equipment can be subscriber station (the Relay Subscriber Station of rotating function in having, be abbreviated as RSS) or have in base station (the Relay Base Station of rotating function, be abbreviated as RBS), and with the wireless communication problems that solves between the base station, thereby realize with the wire communication between the replacement of the radio communication between base station base station, prior art Central Plains, solve in the prior art and can't support wired connection when newly-established base station, or during the wired connection fault of itself and other base station, can not add " community " smoothly, and cause in covering overlap-add region the consequence that other base station or subscriber station are disturbed.
Among the present invention, RSS still can work as SS usefulness, and in " community ", the network insertion of the subscriber station of rotating function and initialization procedure and domestic consumer station can be identical in having.
Among the present invention, RBS still can work as BS usefulness, can also be used for the subscriber station outside the access base station coverage, with the access radius of extended base station.
Below in conjunction with accompanying drawing specific implementation of the present invention is described.
At first, to adopt RSS to realize that the present invention is that example describes.
As shown in Figure 3 and Figure 4, the subscriber station of rotating function during the present invention introduces in the network architecture of IEEE 802.16h definition and has, i.e. RSS is to support the wireless intercommunication of other base station (as BS2 and BS3) in newly-established base station (as BS1) and " community ".
In Fig. 3, BS1 visits the shared data bank of BS3 wirelessly by terminal RSS3, with the relevant message of BS3 intercommunication coexistence, and the wired connection by the same BS2 of BS3, certificate server and coexistence server, the shared data bank of visit BS2 transmits the relevant message of coexistence mutually with BS2, certificate server and coexistence server.
Also can introduce multi-hop RSS between other base station among the present invention in newly-established base station and " community ", for example among Fig. 3 the Radio Link of BS1 and BS2 respectively via RSS1 and RSS2 transfer.
Also can introduce a plurality of RSS between other base station among the present invention in newly-established base station and " community ", for example the Radio Link of BS1 and BS3 is via RSS3 and RSS4 transfer among Fig. 4, and RSS3 and RSS4 can timesharing or carried out the transfer of BS1 to BS3 simultaneously.
That is to say, as shown in Figure 3 and Figure 4, handle with the transfer that the randomly topologically structured transfer net of forming communicates by a plurality of RSS for also introducing one between other base station in newly-established base station and " community ", thereby realize intercommunication between newly-established base station and other base stations.
In addition, the present invention can introduce RSS between the base station of existing wired connection, for example introduce RSS between BS2 and BS3, makes that the wireline side in the network is further simplified.Fig. 4 for example, BS1 visits the shared data bank of BS3 wirelessly by terminal RSS3, with the relevant message of BS3 intercommunication coexistence, and the shared data bank of visiting BS2 by BS3 through RSS5 to the Radio Link of BS2, transmit the relevant message of coexistence mutually with BS2, by the wired connection of BS2 and certificate server and coexistence server, transmit the relevant message of coexistence mutually again with certificate server and coexistence server.
RSS described in the present invention is owing to comprise the subscriber station processing unit, and promptly it has the function of subscriber station, and therefore, RSS can also be used for the subscriber station outside the access base station coverage, with the access radius of extended base station, is about to the subscriber station transfer and receives the base station.Fig. 4 for example, SS1 is in outside the coverage of BS2, but SS1 is inserted BS2 by RSS2.
The subscriber station of rotating function can be fixed in having, and also can move, and itself can be used as subscriber station.In " community ", the network insertion of the subscriber station of rotating function and initialization procedure and domestic consumer station can be identical in having.RSS can be layer one terminal, can be layer two terminal, or even layer three or layer three above terminal.
Be described in detail below in conjunction with the structure of accompanying drawing described RSS.
Described RSS mainly is made up of a crosspoint and one or several transceivers.The RSS crosspoint is used for the exchanges data between different base station (or RBS), supporting its middle rotating function between different base station, and between base station (or RBS) and subscriber station and the exchanges data between base station (or SS) and user.
The concrete structure of described RSS comprises two kinds; a kind of is the transfer subscriber station RSS that can support several Multi-Mode Base Station that comprises multi-transceiver; another kind is the transfer subscriber station RSS that can support several single mode base stations for single-transceiver, will describe respectively below:
First kind of RSS is: as Fig. 5 and shown in Figure 7, RSS adopts many transceivers to support BS1 (or RBS), ..., BSn (or SS) is for being operated in the situation with the different mode base station of frequency range, or BS1 (or RBS) ..., BSn (or SS) is the situation that is operated in the base station of different frequency range (for example adjacent channel), for example BS1 is the 802.16e base station, and BS3 is the 802.16d base station.RSS transceiver 1...n can time-sharing work, also can adopt the enough directional antennas of isolation to work simultaneously,, make the transceiver 1...n can be under co-channel or adjacent channel and BS1 (or RBS) so that overcome with frequently or adjacently disturb frequently, ..., BSn (or SS) sets up reliable communication.
Second kind of RSS is: as Fig. 6 and shown in Figure 8, RSS adopts single transceiver to support BS1 (or RBS) ..., BSn (or SS) is for being operated in the situation with the model identical base station of frequency range.BS1 (or RBS) ..., BSn (or SS) can timesharing ground by different burst group (burst) or different frame (frame) with the RSS transceiver, under co-channel, set up reliable communication; BS1 (or RBS) ..., BSn (or SS) also can work simultaneously, the RSS transceiver is by different subchannels (subchannel), subcarrier (subcarrier) group or enough directional antenna and the BS1 (or RBS) of isolation, ..., BSn (or SS) is in co-channel intercommunication down.
Can also there be the structure of comprehensive above-mentioned two kinds of situations in described RSS system: some transceivers are supported several model identical base station, and several transceiver supports several different modes base station in addition in addition.
Among the present invention, the structure of described RSS can be layer two RSS and layer one RSS according to the difference that crosspoint is provided with the position, describes below in conjunction with accompanying drawing:
(1) layer two multi-transceiver RSS system configuration are as shown in Figure 5:
With scene shown in Figure 3 is example, and BS1 is newly-built base station, and RSS3 is the subscriber station that belongs to rotating function in the having of BS3, and then user's data of issuing BS3 exchange to its inner transceiver 3 by crosspoint, pass to BS3 by wireless channel again; Otherwise, after BS3 issues user's data and received from transceiver 3 by RSS3, exchange to the user by crosspoint; After the message that BS1 issues BS3 then receives from transceiver 1, exchange to transceiver 3 by crosspoint, pass to BS3 by wireless channel again, vice versa, so no longer describe in detail.
(2) layer two single-transceiver RSS system configuration are then as shown in Figure 6:
Be example with scene shown in Figure 3 still, BS1 is newly-built base station, and RSS3 is the subscriber station that belongs to rotating function in the having of BS3, and then user's data of issuing BS3 exchange to transceiver 1 by crosspoint, pass to BS3 by wireless channel again; Otherwise, after BS3 issues user's data and receives from transceiver 1, exchange to the user by crosspoint.After the message that BS1 issues BS3 then receives from transceiver 1, exchange back transceiver 1 by crosspoint, pass to BS3 by wireless channel again, vice versa.
(3) layer one multi-transceiver RSS system configuration is as shown in Figure 7:
Need to prove: the sublayer of wireless data link layer encrypt to(for) band, encrypting the sublayer function should peel off out from the wireless data link layer, place between crosspoint and the radio physical layer processing unit, reason is that crosspoint can only be handled expressly, can not handle ciphertext;
Under scene shown in Figure 3, BS1 is newly-built base station, RSS3 is the subscriber station that has middle rotating function that belongs to BS3, then user's data of issuing BS3 can be passed through crosspoint, or one independently the selector switch unit select to want corresponding wireless data link layer processing unit to handle, as wireless data link layer processing unit 3, the data link frame that wireless data link layer processing unit 3 handled back formation exchanges to transceiver 3 by crosspoint, passes to BS3 by wireless channel again; Otherwise, after BS3 issues user's data and receives from transceiver 3, by crosspoint exchange handle to wireless data link layer processing unit 3 after, independently pass to the user in the selector switch unit by crosspoint or one again.After the message that BS1 issues BS3 then receives from transceiver 1, directly exchange by crosspoint and to give transceiver 3, pass to BS3 by wireless channel again, vice versa.
(4) layer one single-transceiver RSS system configuration is as shown in Figure 8:
Equally, encrypt the wireless data link layer of sublayer for band, encrypt the sublayer function and should peel off out from the wireless data link layer equally, place between crosspoint and the radio physical layer processing unit, reason be that crosspoint can only be handled expressly, can not handle ciphertext;
Under the scene of Fig. 3, BS1 is newly-built base station, RSS3 is the subscriber station that has middle rotating function that belongs to BS3, then the user issues the data of BS3 by after the wireless data link layer processing unit processes, the data link frame that forms exchanges to transceiver 1 by crosspoint, passes to BS3 by wireless channel again; Otherwise, after BS3 issues user's data and receives from transceiver 1, exchange to passing to the user after the wireless data link layer processing unit processes by crosspoint.After the message that BS1 issues BS3 then receives from transceiver 1, directly exchange back transceiver 1 by crosspoint, pass to BS3 by wireless channel again, vice versa.
Among the present invention, described RSS can also be arranged at more than three layers or three layers, a corresponding layer three or layer three an above RSS can utilize layer three to do Route Selection, for reducing the unnecessary transfer flow or the consideration of safety factor, can also do the communication filtration more than three of layer three or layer.Its structure is similar with layer two RSS, and difference is that the transceiver of layer three or layer three above RSS has comprised radio physical layer, wireless data link layer and layer three or layer three above processing unit, and crosspoint is substituted by wireless routing unit.
Afterwards, again to adopt RBS to realize that the present invention is that example describes.
For newly-established base station, as the BS1 among Fig. 9, other base station (as RBS3) in " community " is in its maximum coverage range, the base station RBS of rotating function during then the present invention can introduce in the network architecture of IEEE 802.16h definition and have is to support the wireless intercommunication of other base station BS 2 that newly-established base station BS 1 and " community " are interior.
Fig. 9 for example, BS1 visits the shared data bank of RBS3 wirelessly by terminal RBS3, with the relevant message of RBS3 intercommunication coexistence, and the wired connection by the same BS2 of RBS3, certificate server and coexistence server, the shared data bank of visit BS2 transmits the relevant message of coexistence mutually with BS2, certificate server and coexistence server.
RBS3 can do transfer between BS1 and BS2, make that the wireline side in the network is further simplified.Figure 10 for example, BS1 visits the shared data bank of RBS3 wirelessly by terminal RBS3, with the relevant message of RBS3 intercommunication coexistence, and by the shared data bank of RBS3 to the Radio Link visit BS2 of BS2, transmit the relevant message of coexistence mutually with BS2, by the wired connection of BS2 and certificate server and coexistence server, transmit the relevant message of coexistence mutually again with certificate server and coexistence server.
Terminal RBS can also be used for the subscriber station outside the access base station coverage, with the access radius of extended base station.Fig. 9 for example, SS1 is in outside the coverage of BS1, but SS1 is inserted BS1 by RBS3, enjoys the service of BS1.
Also can introduce the subscriber station RSS3 of rotating function in having in having in newly-established base station BS 1 and " community " between the base station RBS3 of rotating function, Figure 11 for example, BS1 can timesharing or while transfer to RBS3 two wireless links through RSS3 to RBS3 and BS1.
The base station of rotating function can be fixed in having, and also can move, and itself can be used as the base station.
Described RBS can be layer one terminal, can be layer two terminal, or even layer three or layer three above terminal.RBS also mainly is made up of a crosspoint and one or several transceivers.The RBS crosspoint is used for exchanges data (to support rotating function) between different base station and the exchanges data between base station and user.
For centralized wireless network, RBS also needs wired transmission processing unit to link to each other with upper level equipment through wired cable, and upper level equipment can be outside shared data bank, base station controller, or WiMAX access server (ASN GW).
The concrete structure of described RBS comprises two kinds; a kind of is the transfer base station RBS that can support several Multi-Mode Base Station that comprises multi-transceiver; another kind is the transfer base station RBS that can support several single mode base stations for single-transceiver, will describe respectively below:
First kind for RBS is: as Figure 12 and shown in Figure 14, adopt subscriber station SSi (or RSSi) that many transceivers support each BSj (or RBSj) and RBS to be operated in situation with frequency range with different mode, or each BSj (or RBSj) is for being operated in the situation of different frequency range (for example adjacent channel), for example BS1 is the 802.16e base station, BS2 is 802.11 AP, RBS3 is the 802.16d base station, and SS is the 802.16d subscriber station.Each transceiver of RBS j can time-sharing work, also can adopt enough directional antennas of isolation or smart antenna to work simultaneously, so that overcome frequency or adjacent interference frequently together, make each transceiver j under co-channel or adjacent channel, set up reliable communication with each BSj (or RBSj).
Second kind of RBS is: as Figure 13 and shown in Figure 15, RBS adopts subscriber station SSi (or RSSi) that single transceiver supports each BSj (or RBSj) and RBS to be operated in situation with frequency range with model identical.BSj (or RB Sj) inserts RBS with the form of subscriber station, each BSj (or RBSj) can timesharing ground by different burst group (burst) or different frame (frame) with the RBS transceiver, under co-channel, set up reliable communication; Each BSj (or RBSj) also can work simultaneously, the RBS transceiver is by different subchannels (subchannel), subcarrier (subcarrier) group, enough directional antenna or smart antenna and each BSj (or RBSj) of isolation, in co-channel intercommunication down.
The RBS system can also adopt the structure of comprehensive above-mentioned two kinds of situations: some transceivers are supported several model identical base station, and several transceiver supports several different modes base station in addition in addition.
Among the present invention, the structure of described RBS can be layer two RBS and layer one RBS according to the difference that crosspoint is provided with the position, describes below in conjunction with accompanying drawing:
(1) layer two multi-transceiver RBS system configuration are as shown in figure 12:
Under the scene of Figure 10, BS1 is newly-built base station, RBS3 is the base station of rotating function in having, SS3 is the subscriber station that belongs to RBS3, after then the RBS3 shared data bank query messages of BS1 initiation receives from transceiver 1, exchange the outside shared data bank of visiting RBS3 to the wire transmission processing unit processes by crosspoint, vice versa; After the message that BS1 issues BS2 then receives from transceiver 1, exchange to transceiver 2 by crosspoint, pass to BS2 by wireless channel again, vice versa.
(2) layer two single-transceiver RBS system configuration are as shown in figure 13:
Under the scene of Figure 10, BS1 is newly-built base station, RBS3 is the base station of rotating function in having, SS3 is the subscriber station that belongs to RBS3, after then the RBS3 shared data bank query messages of BS1 initiation receives from transceiver 1, exchange the outside shared data bank of visiting RBS3 to the wire transmission processing unit processes by crosspoint, vice versa; After the message that BS1 issues BS2 then receives from transceiver 1, exchange back transceiver 1 by crosspoint, pass to BS2 by wireless channel again, vice versa.
(3) layer one multi-transceiver RBS system configuration is as shown in figure 14:
Under the scene of Figure 10, RBS3 is the base station of rotating function in having, SS3 is the subscriber station that belongs to RBS3, after then the RBS3 shared data bank query messages of BS1 initiation receives from transceiver 1, exchange to after 1 processing of wireless data link layer processing unit by crosspoint, independently pass to the outside shared data bank of wire transmission processing unit processes visit RBS3 in the selector switch unit by crosspoint or one again, vice versa; After the message that BS1 issues BS2 then receives from transceiver 1, directly exchange by crosspoint and to give transceiver 2, pass to BS2 by wireless channel again, vice versa.
(4) layer one single-transceiver RBS system configuration is as shown in figure 15:
Under the scene of Figure 10, RBS3 is the base station of rotating function in having, SS3 is the subscriber station that belongs to RBS3, after then the RBS3 shared data bank query messages of BS1 initiation receives from transceiver 1, exchange to after 1 processing of wireless data link layer processing unit by crosspoint, pass to the outside shared data bank of wire transmission processing unit processes visit RBS3 again, vice versa; After the message that BS1 issues BS2 then receives from transceiver 1, directly exchange back transceiver 1 by crosspoint, pass to BS2 by wireless channel again, vice versa.
Among the present invention, described RBS can also adopt layer three or layer three above RBS, and RBS can utilize layer three to do Route Selection accordingly, for reducing the unnecessary transfer flow or the consideration of safety factor, can also do the communication filtration more than three of layer three or layer.Its structure is similar with layer two RBS, and difference is that the transceiver of layer three or layer three above RBS has comprised radio physical layer, wireless data link layer and layer three or layer three above processing unit, and crosspoint is substituted by wireless routing unit.
In sum, the invention enables newly-established base station to support wireless connections, thereby when guaranteeing the wired connection fault when newly-established base station and other base station, still can add " community " smoothly, avoid in the covering overlap-add region, interference being caused in other base station or subscriber station.Simultaneously, solved the problem of wired connection complicated layout between the base station
The above; only for the preferable embodiment of the present invention, but protection scope of the present invention is not limited thereto, and anyly is familiar with those skilled in the art in the technical scope that the present invention discloses; the variation that can expect easily or replacement all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection range of claim.
Claims (13)
1. a wireless transferring equipment is characterized in that, comprising:
The wireless transmission processing unit: the wireless signal that the reception sources base station equipment sends is also given crosspoint; Described wireless transmission processing unit is at least a with frequency wireless transmission processing unit of at least a pattern;
Crosspoint:, and described wireless signal is sent to the purpose base station for the wireless signal that described source base station equipment is sent is selected the purpose base station;
When described wireless transferring equipment adopts the support of many transceivers to work with frequency range different mode base station, communicate by letter with each base station equipment by the directional antenna that isolation is enough;
When described wireless transferring equipment adopts single transceiver support to work with frequency range model identical base station, communicate by letter with each base station equipment by different subchannels or sub carrier group.
2. wireless transferring equipment according to claim 1 is characterized in that, described wireless transmission processing unit comprises:
The radio physical layer transmission unit: respectively with wireless data link layer and base station in the radio physical layer transmission unit communicate;
Wireless data link layer transmission unit:, communicate by letter with other radio link layer transmission units by crosspoint by communicating between radio physical layer transmission unit and base station.
3. wireless transferring equipment according to claim 2, it is characterized in that, described crosspoint is connected between radio physical layer transmission unit and the wireless data link layer transmission unit, perhaps be arranged at the wireless data link layer, be connected with wireless data link layer transmission unit, perhaps, can also be arranged at that the wireless data link layer is above to be connected with the processing unit of equivalent layer.
4. according to claim 1,2 or 3 described wireless transferring equipment, it is characterized in that, also comprise:
The subscriber station processing unit: the user terminal in the system is by communicating between this subscriber station processing unit and wireless transmission processing unit and the base station, and/or subscriber station processing unit self is by communicating between wireless transmission processing unit and the base station.
5. according to claim 1,2 or 3 described wireless transferring equipment, it is characterized in that, also comprise:
Base station processing unit: by communicating between this base station processing unit and wireless transmission processing unit and the subscriber station.
6. wireless transferring equipment according to claim 5 is characterized in that, described crosspoint is also by the base station communication in wire transmission processing unit and the communications cable and the system.
7. a wireless communication system is characterized in that, comprises wireless transferring equipment as claimed in claim 1 and one group of base station, between described one group of base station by wireless transferring equipment interconnected communication.
8. wireless communication system according to claim 7, it is characterized in that, when comprising base station processing unit in the described wireless transferring equipment, then described wireless transferring equipment also with system in subscriber station communicate by letter by wireless connections, and also comprise wired transmission processing unit in the described wireless transferring equipment, be used for being connected with upper level equipment by wired.
9. wireless communication system according to claim 7 is characterized in that, comprises the subscriber station processing unit in described wireless transferring equipment, then described wireless transferring equipment also with system in user terminal communicate by letter by wireless connections.
10. according to claim 7,8 or 9 described wireless communication systems, it is characterized in that described wireless transferring equipment is communicated by letter by wireless connections with the base station of one group of different mode respectively.
11. wireless communication system according to claim 10 is characterized in that, the base station of same pattern comprises one at least in the base station of described one group of different mode.
12., it is characterized in that the transfer net of forming with any topological structure by a plurality of wireless transferring equipment between the base station in the described wireless communication system carries out intercommunication according to claim 7,8 or 9 described wireless communication systems.
13., it is characterized in that described wireless transferring equipment is fixed or moved and is arranged in the wireless communication system according to claim 7,8 or 9 described wireless communication systems.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2005100807223A CN1863002B (en) | 2005-07-05 | 2005-07-05 | Wireless relay apparatus and wireless communication system |
| PCT/CN2006/001526 WO2007003130A1 (en) | 2005-07-05 | 2006-06-30 | A transfer device and system for realizing speed handoff and wireless communication system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2005100807223A CN1863002B (en) | 2005-07-05 | 2005-07-05 | Wireless relay apparatus and wireless communication system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1863002A CN1863002A (en) | 2006-11-15 |
| CN1863002B true CN1863002B (en) | 2010-06-16 |
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