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CN103731897B - Method and system for wireless backhaul - Google Patents

Method and system for wireless backhaul Download PDF

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Publication number
CN103731897B
CN103731897B CN201210391329.6A CN201210391329A CN103731897B CN 103731897 B CN103731897 B CN 103731897B CN 201210391329 A CN201210391329 A CN 201210391329A CN 103731897 B CN103731897 B CN 103731897B
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base station
pico base
backhaul
pico
relay
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CN103731897A (en
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金巴
高有军
江小威
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China Mobile Communications Group Co Ltd
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China Mobile Communications Group Co Ltd
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Abstract

The present invention provides a kind of method and systems of wireless backhaul.Method therein includes: to preset for eNodeB and each base station Pico for providing dedicated antenna, dedicated channel and the dedicated frequency spectrum of passback resource for the adjacent base station Pico, and preset the routed path for arriving eNodeB for each base station Pico；The return data that the base station Pico for according to set routed path, return data being transmitted to the base station Pico for receiving backhaul service by the base station Pico of relaying, and receiving backhaul service is forwarded by the base station Pico of relaying.The deployment of the base station Pico can be made to become more flexible using the present invention and reduce lower deployment cost and expense.

Description

A kind of method and system of wireless backhaul
Technical field
This application involves mobile communication technology field more particularly to a kind of method and systems of wireless backhaul.
Background technique
Pico cell (Pico) with the introducing of long evolving system (LTE) heterogeneous network (Hetnet), in HetNet The passback deployment of base station will bring new challenge to operator.In LTE Hetnet, the primary demand of operator is: 1) The deployment of the base station Pico in Hetnet needs flexible；2) lower deployment cost and expense of the base station Pico in Hetnet cannot be too Otherwise height influences whether operation profit.Currently, many operators have begun concern the base station Pico data back demand and Related problem.
It is mainly to lead with optical fiber (microwave) and band data line in the data back technology of the existing base station Pico To.But under HetNet environment, bandwidth required for the base station Pico is generally between 100MHz to 200MHz, and existing skill The bandwidth of band data line in art is smaller, it is difficult to meet the bandwidth requirement of the above-mentioned base station Pico；The transmission energy of optical fiber (microwave) Power generally in 1GHz or more, is far longer than the bandwidth requirement of the base station Pico, so if carrying out the number of the base station Pico using optical fiber According to passback, it will cause the wastes of vast resources.Moreover, because the deployment of current fibre system is not popularized also, so if The data back of the base station Pico is carried out using optical fiber, then the deployment of the base station Pico is by will necessarily be by fibre system deployment scenario Limitation, it is difficult to accomplish to dispose the base station Pico according to network deployment request.
In summary, due to the method for the data back of the base station Pico in the prior art there is a problem of it is as described above, because How this makes the deployment of the base station Pico become more flexible and reduces lower deployment cost and expense, it has also become one urgently in this field Problem to be solved.
Summary of the invention
In view of this, the present invention provides a kind of method and system of wireless backhaul, so as to pass through each Pico base The relaying stood realizes wireless backhaul, so that the deployment of the base station Pico becomes more flexible and reduces lower deployment cost and expense.
Technical solution of the present invention is specifically achieved in that
A kind of method of wireless backhaul, this method comprises:
It presets for evolved base station eNodeB for providing passback resource for the adjacent base station Pico cell Pico Dedicated antenna, dedicated channel and dedicated frequency spectrum, and preset one for each base station Pico for receiving backhaul service and arrive The routed path of eNodeB；
According to preset routed path, return data is transmitted to by the base station Pico of relaying and receives backhaul service The base station Pico, and receive the return data that the base station Pico of backhaul service is forwarded by the base station Pico of the relaying.
Wherein, the routed path is a jump routed path or multihop routing path.
Wherein, this method may further comprise:
The transmission of return data is carried out using MIMO technique.
Wherein, this method may further comprise:
The transmission of return data is carried out using end-to-end resting period data transmission method.
Wherein, it is described using end-to-end resting period data transmission method carry out return data transmission include:
Preset a time cycle and in the time cycle be each base station Pico for receiving backhaul service and It relays the base station Pico and distributes corresponding time point；
Pre-set time cycle and various time points are sent respectively to each base station Pico for receiving backhaul service With the relaying base station Pico；
With each base station Pico for receiving backhaul service and relaying Pico base station synchronization time cycle and corresponding time point；
With each base station Pico for receiving backhaul service and relaying the base station Pico according to the time cycle and it is corresponding when Between point carry out return data transmission.
Wherein, this method may further comprise:
Pass through period X2 interface synchronization time and phase with each base station Pico for receiving backhaul service and the relaying base station Pico The time point answered.
Wherein, when there is new Pico base station access network network, it is described with each base station Pico for receiving backhaul service and in It may further comprise: after Pico base station synchronization time cycle and corresponding time point
Receive the time point demand signalling that the new base station Pico is sent；
Corresponding time point is set for the new base station Pico, and time cycle and set time point are sent to newly The base station Pico；
With new the Pico base station synchronization time cycle and corresponding time point；
The transmission of return data is carried out according to the time cycle and corresponding time point with the new base station Pico.
Wherein, this method may further comprise:
Pass through period X2 interface synchronization time and corresponding time point with the new base station Pico.
A kind of method of wireless backhaul is additionally provided in the present invention, this method comprises:
It presets to receive the base station Pico cell Pico of backhaul service for providing passback for the adjacent base station Pico Dedicated antenna, dedicated channel and the dedicated frequency spectrum of resource；
The base station Pico for receiving backhaul service is sent according to preset routed path by the relaying base station Pico Return data, and receive the return data by the relaying base station Pico forwarding.
Wherein, the routed path is a jump routed path or multihop routing path.
Wherein, this method may further comprise:
The transmission of return data is carried out using MIMO technique.
Wherein, this method may further comprise:
The transmission of return data is carried out using end-to-end resting period data transmission method.
Wherein, it is described using end-to-end resting period data transmission method carry out return data transmission include:
Receive a pre-set time cycle and assigned time point；
The time cycle and corresponding time point are synchronized with evolved base station eNodeB；
According to the transmission of time cycle and progress of corresponding time point return data after synchronizing.
Wherein, this method may further comprise:
The time cycle and corresponding time point are synchronized by X2 interface.
A kind of method of wireless backhaul is additionally provided in the present invention, this method comprises:
It presets for the relaying base station Pico cell Pico for providing the dedicated of passback resource for the adjacent base station Pico Antenna, dedicated channel and dedicated frequency spectrum；
The relaying base station the Pico return data received according to the forwarding of preset routed path.
Wherein, this method may further comprise:
The transmission of return data is carried out using MIMO technique.
Wherein, this method may further comprise:
The transmission of return data is carried out using end-to-end resting period data transmission method.
Wherein, it is described using end-to-end resting period data transmission method carry out return data transmission include:
Receive a pre-set time cycle and assigned time point；
The time cycle and corresponding time point are synchronized with evolved base station eNodeB；
According to the transmission of time cycle and progress of corresponding time point return data after synchronizing.
Wherein, this method may further comprise:
The time cycle and corresponding time point are synchronized by X2 interface.
A kind of wireless backhaul system is additionally provided in the present invention, which includes: evolved base station eNodeB, receives passback The base station Pico cell Pico of service and at least one relaying base station Pico；
The eNodeB is previously provided with for providing the Special hoist of passback resource for the adjacent base station Pico cell Pico Line, dedicated channel and dedicated frequency spectrum, for presetting one to eNodeB for each base station Pico for receiving backhaul service Routed path；It is also used to according to preset routed path, return data is transmitted to by receiving by the relaying base station Pico The base station Pico of backhaul service, and the base station Pico for receiving backhaul service passes through the passback number of the relaying base station Pico forwarding According to；
The base station relaying Pico, for eNodeB or receive backhaul service the base station Pico forward return data；
The base station Pico for receiving backhaul service, for receiving return data；It is also used to passing through return data into relaying The base station Pico is sent to eNodeB.
Wherein, the eNodeB is also used to preset a time cycle and is each connect in the time cycle Corresponding time point is distributed by the base station Pico of backhaul service and the relaying base station Pico, by pre-set time cycle and each Time point is sent respectively to each base station Pico for receiving backhaul service and the relaying base station Pico, with each backhaul service that receives The base station Pico and relaying Pico base station synchronization time cycle and corresponding time point, and with each Pico base for receiving backhaul service Stand and relay the transmission that the base station Pico carries out return data according to the time cycle and corresponding time point.
Wherein, the eNodeB includes: path setting module, sending module and receiving module；
The path setting module is arrived for presetting one for each base station Pico for receiving backhaul service The routed path of eNodeB；The preset routed path is sent to sending module；
The sending module, for being turned return data by the relaying base station Pico according to preset routed path Issue the base station Pico for receiving backhaul service；
The receiving module, the base station Pico for receiving backhaul service pass through the passback of the relaying base station Pico forwarding Data.
Wherein, time setup module and synchronization module be may further comprise: in the eNodeB；
The time setup module, for presetting a time cycle and being each receiving in the time cycle Corresponding time point is distributed in the base station Pico and the relaying base station Pico of backhaul service；Time cycle and various time points are sent to Synchronization module；
The synchronization module is also used to pre-set time cycle and various time points being sent respectively to each receiving The base station Pico of backhaul service and the relaying base station Pico, and with each base station Pico for receiving backhaul service and relay the base station Pico Time cycle after synchronizing and corresponding time point are sent to the sending module by period synchronization time and corresponding time point And receiving module.
A kind of evolved base station is additionally provided in the present invention, which includes: path setting module, sending module And receiving module；
The path setting module, for presetting one for each base station Pico cell Pico for receiving backhaul service Routed path of the item to the evolved base station；The preset routed path is sent to sending module；
The sending module, for being turned return data by the relaying base station Pico according to preset routed path Issue the base station Pico for receiving backhaul service；
The receiving module, the base station Pico for receiving backhaul service pass through the passback of the relaying base station Pico forwarding Data.
Wherein, time setup module and synchronization module be may further comprise: in the evolved base station；
The time setup module, for presetting a time cycle and being each receiving in the time cycle Corresponding time point is distributed in the base station Pico and the relaying base station Pico of backhaul service；Time cycle and various time points are sent to Sending module；
The sending module is also used to pre-set time cycle and various time points being sent respectively to each receiving The base station Pico and the relaying base station Pico of backhaul service；
The synchronization module, for all with each base station Pico for receiving backhaul service and relaying Pico base station synchronization time Phase and corresponding time point.
A kind of base station Pico cell Pico for receiving backhaul service is additionally provided in the present invention, this receives backhaul service The base station Pico includes: the second sending module and the second receiving module；
Second sending module, for sending passback by the relaying base station Pico according to preset routed path Data；
Second receiving module, for receiving the return data for passing through the relaying base station Pico forwarding.
Wherein, the base station Pico for receiving backhaul service may further comprise: the second synchronization module；
Second synchronization module, for receiving a pre-set time cycle and time point, and with evolved base The eNodeB that stands synchronizes the time cycle and time point, and the time cycle after synchronizing and time point are sent to described second and sent Module and the second receiving module；
Second receiving module, be also used to according to after synchronizing time cycle and time point receive through the relaying The return data of the base station Pico forwarding；
Second sending module, be also used to according to after synchronizing time cycle and time point by relaying the base station Pico hair Send return data.
A kind of base station relaying Pico cell Pico is additionally provided in the present invention, the base station relaying Pico includes: that third is sent Module and third receiving module；
The return data received for receiving return data, and is sent to third and sent by the third receiving module Module；
The third sending module, for the return data received according to the forwarding of preset routed path.
Wherein, the base station relaying Pico may further comprise: third synchronization module；
The third synchronization module, for receiving a pre-set time cycle and time point, and with evolved base The eNodeB that stands synchronizes the time cycle and time point, and the time cycle after synchronizing and time point are sent to the third and sent out Send module and third receiving module；
The third receiving module, be also used to according to after synchronizing time cycle and time point receive return data；
The third sending module, be also used to according to after synchronizing time cycle and the received passback of time point forwarding Data.
As seen from the above technical solution, the present invention is due to presetting one for each base station Pico for receiving backhaul service Item is to the routed path of eNodeB, therefore eNodeB can will be returned by the base station Pico of relaying according to set routed path Pass the Pico that data forwarding passes through relaying to the base station Pico for receiving the base station Pico of backhaul service, and receiving backhaul service The return data of base station forwarding, so as to realize wireless backhaul by the relaying of each base station Pico, so that the base station Pico Deployment becomes more flexible and reduces lower deployment cost and expense.
Detailed description of the invention
Fig. 1 is the flow chart of the method for the wireless backhaul in the embodiment of the present invention.
Fig. 2 is the flow chart of the end-to-end tdm data transmission method in the specific embodiment of the invention.
Fig. 3 is the flow chart of the embodiment one in the present invention.
Fig. 4 is the structural schematic diagram of the wireless backhaul system in the embodiment of the present invention.
Fig. 5 is the structural schematic diagram of the eNodeB in the embodiment of the present invention.
Fig. 6 is the structural schematic diagram of the base station Pico for receiving backhaul service in the embodiment of the present invention.
Fig. 7 is the structural schematic diagram of the relaying base station Pico in the embodiment of the present invention.
Specific embodiment
For technical solution of the present invention and advantage is more clearly understood, below in conjunction with drawings and the specific embodiments, to this Invention is described in further detail.
Fig. 1 is the flow chart of the method for the wireless backhaul in the embodiment of the present invention.
As shown in Figure 1, the method for the wireless backhaul in the embodiment of the present invention includes step as described below:
It step 101, is evolved base station (eNodeB), each base station Pico for receiving backhaul service and the relaying base station Pico It presets for providing dedicated antenna, dedicated channel and the dedicated frequency spectrum of passback resource for the adjacent base station Pico.
In this step, by for eNodeB, each base station Pico for receiving backhaul service and relaying the base station Pico it is preparatory Corresponding dedicated antenna, dedicated channel and dedicated frequency spectrum are set, for providing passback resource for the adjacent base station Pico.Wherein, The dedicated frequency spectrum can be the frequency spectrum of defined in 802.11n agreement.In addition, the base station Pico for receiving backhaul service It is referred to as the base station target Pico.
In addition, in a specific embodiment of the present invention, since the Pico base station adjacent with eNodeB can be one or more A, therefore, eNodeB can provide passback resource for the adjacent base station Pico known to one or more, that is to say, that eNodeB Return data can be forwarded by one or more base stations Pico adjacent thereto；Similarly, due to some base station Pico phase The adjacent base station Pico is also possible to one or more, therefore, each base station Pico for receiving backhaul service and the relaying base station Pico Also passback resource can be provided for the adjacent base station Pico known to one or more, that is to say, that each backhaul service that receives The base station Pico and the relaying base station Pico can forward return data by one or more base stations Pico adjacent thereto.
Step 102, the routed path for arriving eNodeB is preset for each base station Pico for receiving backhaul service.
Because the Pico base station adjacent with eNodeB and each base station Pico may have one or more, eNodeB can To be routed to each base station Pico by different routing routes.In order to ensure the uniqueness on wireless backhaul routing route road, institute In this step, will preset the routed path for arriving eNodeB for each base station Pico for receiving backhaul service, So that eNodeB and each receives to have between the base station Pico of backhaul service and an only routed path.It is above-mentioned setting After routed path, eNodeB and each base station Pico for receiving backhaul service can by above-mentioned preset routed path into Row data passed-back traffic.
In addition, in a specific embodiment of the present invention, according to different actual application environments, each base station Pico can both be made For the base station Pico for receiving backhaul service, the relaying base station Pico also can be used as.For example, in certain actual application environment, some The base station Pico can be used as the base station Pico for receiving backhaul service, the i.e. base station target Pcio；And in another actual application environment, The base station Pico is then but also as the relaying base station Pico.
Preferably, in a specific embodiment of the present invention, the routed path can be a jump routed path, it is also possible to Multihop routing path.
In addition, in a specific embodiment of the present invention, the execution sequence between above-mentioned steps 101 and 102 can be according to reality Border needs to be set in advance.For example, above-mentioned steps 101 and 102 may be performed simultaneously, it is also possible to first carry out step 101, then Execute step 102；Alternatively, first carrying out step 102, then execute step 101.
Step 103, eNodeB is forwarded return data by the base station Pico of relaying according to preset routed path It is forwarded to the base station Pico for receiving the base station Pico of backhaul service, and receiving backhaul service by the base station Pico of relaying Return data.
Due in a step 102, having preset one for each base station Pico for receiving backhaul service and having arrived The routed path of eNodeB.Therefore, eNodeB can be according to preset between the base station Pico that is receiving backhaul service Return data is sent to the base station Pico for receiving backhaul service by routed path；Meanwhile eNodeB can also pass through the routed path Receive the return data that the base station Pico for receiving backhaul service is sent.Due to eNodeB and the Pico base for receiving backhaul service Routing route between standing is routed path, therefore return data will be transmitted to receiving by the base station Pico relayed by eNodeB The base station Pico of backhaul service, and receive returning for Pico base station forwarding of the base station Pico for receiving backhaul service by relaying Pass data.
Similarly, the base station Pico for receiving backhaul service will be according to preset routed path, by relaying Pico Base station sends return data, and receives the return data by the relaying base station Pico forwarding.And the base station relaying Pico Then by the return data received according to the forwarding of preset routed path.
Further, in the preferred embodiment, multiple-input and multiple-output (MIMO) technology can be used to be returned The transmission of data, so as to greatly improve the handling capacity of data transmission.Wherein, the MIMO technology can be 802.11n MIMO technology.It is wirelessly returned since the above-mentioned routed path for each Pico base station sets for receiving backhaul service belongs to static routing Road topology, wherein the only limited base station relaying Pico, therefore the signal detection of MIMO with processing (for example, MIMO is synchronous, channel Estimation etc.) it will be fairly simple.
Further, in the preferred embodiment, it can also be passed by using (TDM) data of end-to-end resting period Transmission method carries out the transmission of return data, so as to be effectively reduced the probability of data collision, realizes that multi-hop is collisionless wireless Transmission.
Preferably, Fig. 2 is the flow chart of the end-to-end tdm data transmission method in the specific embodiment of the invention.Such as Fig. 2 institute Show, the end-to-end tdm data transmission method may include step as described below:
Step 201, it presets a time cycle and is each to receive backhaul service in the time cycle Corresponding time point is distributed in the base station Pico and the relaying base station Pico.
In the preferred embodiment, eNodeB or network management can preset the time cycle of a length of P at one. Wherein, the specific value of P can be preset according to specific application environment.It is then possible to be connect according to each of eNodeB is belonged to It is each to receive backhaul service in the time cycle by the base station Pico of backhaul service and the total N of the relaying base station Pico The base station Pico and the relaying base station Pico distribute corresponding time point.For example, N number of time point: T is arranged in the time cycle1, T2... ..., TN, then receive the base station Pico and the relaying base station Pico one time point of distribution of backhaul service for each.Example Such as, by T1The 1st base station Pico is distributed to, by T2The 2nd base station ... ... Pico is distributed to, by TNDistribute to n-th Pico base It stands.
In addition, in the preferred embodiment, at the same time between two time points adjacent in the period between It, can also be unequal every can be equal.
Step 202, pre-set time cycle and various time points are sent respectively to each backhaul service that receives The base station Pico and the relaying base station Pico.
For example, in a specific embodiment of the present invention, if the time point for distributing to the 1st base station Pico is T1, then will Time cycle and time point T1It is sent to the 1st base station Pico；If the time point for distributing to the 2nd base station Pico is T2, then By time cycle and time point T2It is sent to the 2nd base station Pico；..., and so on.Therefore, each to receive backhaul service The base station Pico and the relaying base station Pico will receive a pre-set time cycle and assigned time point.
Step 203, eNodeB and each base station Pico for receiving backhaul service and relaying Pico base station synchronization time cycle With corresponding time point.
Preferably, the eNodeB and each base station Pico for receiving backhaul service and the relaying base station Pico can pass through X2 Interface synchronization time cycle and corresponding time point, to realize that the time cycle is synchronous with various time points.
Step 204, eNodeB and each base station Pico for receiving backhaul service and the relaying base station Pico are according to the time Period and corresponding time point carry out the transmission of return data.
For example, in a specific embodiment of the present invention, in a time cycle, the 1st base station Pico will be in the time Time point T in period1With eNodeB carry out return data transmission, the 2nd base station Pico by the time cycle when Between point T2The transmission ... ... of return data is carried out with eNodeB, and so on.Therefore, each Pico base for receiving backhaul service Stand with the relaying base station Pico can according to after synchronous time cycle and corresponding time point carry out the transmission of return data.
Due within the period at the same time, eNodeB and each base station Pico for receiving backhaul service and Pico base is relayed Stand carry out return data transmission time point it is not identical, therefore data collision will not be generated.When the above-mentioned time cycle when When long P is greater than certain numerical value, the probability that data collision occurs can be substantially reduced, therefore the collisionless nothing of multi-hop may be implemented Line transmission.Moreover, because the probability that data collision occurs is very low, therefore handling capacity also will be with time of multi-hop transmission end to end It counts and declines.
Further, in the preferred embodiment, described end-to-end when there is new Pico base station access network network Can also include: after step 203 in tdm data transmission method
Step 2031, when new Pico base station access network network, the eNodeB which belongs to it is sent Time point demand signalling.
Preferably, the new base station Pico can request letter by the eNodeB sending time point that X2 interface belongs to it It enables, with to eNodeB request time period and corresponding time point.Therefore, when new Pico base station access network network, ownership ENodeB will receive the time point demand signalling that the new base station Pico is sent.
Step 2032, eNodeB is that the new base station Pico is arranged corresponding time point, and by time cycle and set Time point be sent to the new base station Pico.
Step 2033, eNodeB and new Pico base station synchronization time cycle and corresponding time point.
Preferably, the eNodeB and the new base station Pico can pass through X2 interface period synchronization time and corresponding time Point.
After executing above-mentioned steps 2011~2033, eNodeB and the new base station Pico can be according to the time cycles The transmission of return data is carried out with corresponding time point.
It should be noted that above-mentioned steps 2011~2033, execute sequence with what is do not fixed between step 204.Example Such as, it may be performed simultaneously, can also be executed according to predetermined execution sequence.Details are not described herein.
Technical solution of the present invention will further be introduced in a manner of a specific embodiment below.
Embodiment one:
Fig. 3 is the flow chart of the embodiment one in the present invention.It is as shown in Figure 3:
Step 301, the routed path for arriving eNodeB is preset for each base station Pico for receiving backhaul service.
In this step, eNodeB will preset one to eNodeB for each base station Pico for receiving backhaul service Routed path.
Step 302, it presets a time cycle and is each to receive backhaul service in the time cycle Corresponding time point is distributed in the base station Pico and the relaying base station Pico.
In this step, eNodeB is by the time cycle of P a length of when presetting one and in the time cycle Corresponding time point is distributed in each base station Pico for receiving backhaul service and the relaying base station Pico.For example, as shown in figure 3, in the middle When the base station Pico is respectively Pico1 and Pico2 with the base station Pico for receiving backhaul service, eNodeB will be arranged a length of at one Then time point T is arranged for Pico1 in the time cycle of P1, for Pico2, time point T is set2。
Step 303, pre-set time cycle and various time points are sent respectively to each backhaul service that receives The base station Pico and the relaying base station Pico.
In this step, time cycle and various time points will be sent respectively to each receiving by X2 interface by eNodeB The base station Pico and the relaying base station Pico of backhaul service.For example, as shown in figure 3, eNodeB will be by X2 interface by the time cycle With time point T1Pico1 is sent, and passes through X2 interface for time cycle and time point T2Send Pico2.
Step 304, eNodeB and each base station Pico for receiving backhaul service and relaying Pico base station synchronization time cycle With corresponding time point.
For example, as shown in figure 3, eNodeB can by X2 interface and Pico1 and Pico2 period synchronization time and it is corresponding when Between point.
Step 305, when new Pico base station access network network, which requests to eNodeB sending time point Signaling.
For example, as shown in figure 3, the Pico3 will be to eNodeB when there is the new base station a Pico Pico3 to access network Sending time point demand signalling, with to eNodeB request time period and corresponding time point.
Step 306, eNodeB is that the new base station Pico is arranged corresponding time point, and by time cycle and set Time point is sent to the new base station Pico.
For example, as shown in figure 3, corresponding time point T will be arranged for Pico3 in eNodeB3, and by time cycle and set Time point T3It is sent to Pico3.
Step 307, eNodeB and new Pico base station synchronization time cycle and corresponding time point.
For example, as shown in figure 3, eNodeB and Pico3 period synchronization time and corresponding time point.
Step 308, when eNodeB is needed through Pico1 return data to Pico3, return data is sent to by eNodeB Pico1。
Step 309, Pico1 is in time point T1Return data is transmitted to Pico3.
Step 310, Pico3 is in time point T3Return data is transmitted to eNodeB by Pico1.
The above method provided according to the present invention, the present invention also provides corresponding wireless backhaul systems, specifically refer to Fig. 4.
Fig. 4 is the structural schematic diagram of the wireless backhaul system in the embodiment of the present invention.As shown in figure 4, the wireless backhaul system System includes: eNodeB 401, the base station Pico 403 and at least one relaying base station Pico 402 for receiving backhaul service.
The eNodeB is previously provided with for providing the Special hoist of passback resource for the adjacent base station Pico cell Pico Line, dedicated channel and dedicated frequency spectrum, for presetting one to eNodeB for each base station Pico for receiving backhaul service Routed path；It is also used to according to preset routed path, return data is transmitted to by receiving by the relaying base station Pico The base station Pico of backhaul service, and the base station Pico for receiving backhaul service passes through the passback number of the relaying base station Pico forwarding According to；
The base station relaying Pico, for eNodeB or receive backhaul service the base station Pico forward return data；
The base station Pico for receiving backhaul service, for receiving return data；It is also used to passing through return data into relaying The base station Pico is sent to eNodeB.
Preferably, the eNodeB can be further used for presetting a time cycle and in the time cycle Corresponding time point is distributed for each base station Pico for receiving backhaul service and the relaying base station Pico, by pre-set week time Phase and various time points are sent respectively to each base station Pico for receiving backhaul service and the relaying base station Pico, receive back with each It passes the base station Pico of service and relays Pico base station synchronization time cycle and corresponding time point, and receive backhaul service with each The base station Pico and the relaying base station Pico the transmission of return data is carried out according to the time cycle and corresponding time point.
Fig. 5 is the structural schematic diagram of the eNodeB in the embodiment of the present invention.As shown in figure 5, the eNodeB includes: path Setting module 501, sending module 502 and receiving module 503.
The path setting module is arrived for presetting one for each base station Pico for receiving backhaul service The routed path of eNodeB；The preset routed path is sent to sending module 502；
The sending module 502 is used for according to preset routed path, by relaying the base station Pico for return data It is transmitted to the base station Pico for receiving backhaul service；
The receiving module 503, the base station Pico for receiving backhaul service pass through the forwarding of the relaying base station Pico Return data.
Preferably, in a specific embodiment of the present invention, can also further comprise in the eNodeB: time setup module 504 and synchronization module 505.
The time setup module 504, for presetting a time cycle and being each in the time cycle Corresponding time point is distributed in the base station Pico and the relaying base station Pico for receiving backhaul service；Time cycle and various time points are sent out Give synchronization module 505；
The synchronization module 505 is also used to for being sent respectively to pre-set time cycle and various time points each Receive backhaul service the base station Pico and relaying the base station Pico, and with each base station Pico for receiving backhaul service and relay Pico Time cycle after synchronizing and corresponding time point are sent to the transmission by base station synchronization time cycle and corresponding time point Module 502 and receiving module 503.
Fig. 6 is the structural schematic diagram of the base station Pico for receiving backhaul service in the embodiment of the present invention.As shown in fig. 6, institute State that receive the base station Pico of backhaul service include: the second sending module 601 and the second receiving module 602；
Second sending module 601, for being sent back by relaying the base station Pico according to preset routed path Pass data；
Second receiving module 602, for receiving the return data for passing through the relaying base station Pico forwarding.
Preferably, in a specific embodiment of the present invention, it can also be further in the base station Pico for receiving backhaul service It include: the second synchronization module 603；
Second synchronization module 603, for receiving a pre-set time cycle and time point, and with it is evolved Base station eNodeB synchronizes the time cycle and time point, and the time cycle after synchronizing and time point are sent to second hair Send module 601 and the second receiving module 602；
Second receiving module 602, be also used to according to after synchronizing time cycle and time point receive by described After the return data of the base station Pico forwarding；
Second sending module 601, be also used to according to after synchronizing time cycle and time point by relaying Pico base It stands and sends return data.
Fig. 7 is the structural schematic diagram of the relaying base station Pico in the embodiment of the present invention.As shown in fig. 6, the relaying Pico Base station includes: third sending module 701 and third receiving module 702；
The third receiving module 702 is sent to third hair for receiving return data, and by the return data received Send module 701；
The third sending module 701, for the return data received according to the forwarding of preset routed path.
Preferably, in a specific embodiment of the present invention, the base station relaying Pico may further comprise: the synchronous mould of third Block 703；
The third synchronization module 703, for receiving a pre-set time cycle and time point, and with it is evolved Base station eNodeB synchronizes the time cycle and time point, and the time cycle after synchronizing and time point are sent to the third Sending module 701 and third receiving module 702；
The third receiving module 702, be also used to according to after synchronizing time cycle and time point receive return data；
The third sending module 701, be also used to according to after synchronizing time cycle and time point forwarding it is received Return data.
Preferably, in a specific embodiment of the present invention, if in certain actual application environment, when the receiving passback The base station Pico of service by as relaying the base station Pico in use, then the base station Pico by as relaying the base station Pico when third Sending module, third receiving module and third synchronization module can correspond respectively to the base station Pico by as receiving passback clothes The second sending module, the second receiving module and the second synchronization module when the base station Pico of business.
In conclusion in the inventive solutions, due to that will be that each base station Pico for receiving backhaul service is pre- The routed path for arriving eNodeB is first set, therefore eNodeB can pass through the Pico of relaying according to set routed path Return data is transmitted to the base station Pico for receiving backhaul service by base station, and during the base station Pico for receiving backhaul service passes through After the forwarding of the base station Pico return data, it is possible to wireless backhaul is realized by the relaying of each base station Pico, without Wireless backhaul is carried out by wideband data line and optical fiber, therefore can satisfy the bandwidth requirement of wireless backhaul, Er Qiewu completely Special fiber plant is needed, so that the deployment of the base station Pico becomes more flexible and reduces lower deployment cost and expense.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention Within mind and principle, any modification, equivalent substitution, improvement and etc. done be should be included within the scope of the present invention.

Claims (29)

1.一种无线回传的方法，其特征在于，该方法包括：1. A method for wireless backhaul, characterized in that the method comprises: 为演进型基站eNodeB、每个接受回传服务的微微蜂窝Pico基站和中继Pico基站预先设置用于为相邻的Pico基站提供回传资源的专用天线、专用信道和专用频谱，并为每个接受回传服务的Pico基站均预先设定一条到eNodeB的路由路径；Dedicated antennas, dedicated channels, and dedicated spectrums for providing backhaul resources for adjacent Pico base stations are preset for the evolved base station eNodeB, each picocell Pico base station and relay Pico base station receiving backhaul services, and for each Pico base station. Pico base stations that accept backhaul services all preset a routing path to the eNodeB; 根据预先设定的路由路径，通过中继Pico基站将回传数据转发给接受回传服务的Pico基站，并接收接受回传服务的Pico基站通过所述中继Pico基站转发的回传数据。According to a preset routing path, the relay Pico base station forwards the backhaul data to the Pico base station receiving the backhaul service, and receives the backhaul data forwarded by the Pico base station receiving the backhaul service through the relay Pico base station. 2.根据权利要求1所述的方法，其特征在于：2. method according to claim 1, is characterized in that: 所述路由路径为一跳路由路径或多跳路由路径。The routing path is a one-hop routing path or a multi-hop routing path. 3.根据权利要求1所述的方法，其特征在于，该方法还进一步包括：3. The method according to claim 1, wherein the method further comprises: 使用多输入多输出技术进行回传数据的传输。Use multiple-input multiple-output technology for the transmission of backhaul data. 4.根据权利要求1或3所述的方法，其特征在于，该方法还进一步包括：4. The method according to claim 1 or 3, wherein the method further comprises: 使用端到端间歇周期数据传输方法进行回传数据的传输。The transmission of backhaul data is carried out using the end-to-end intermittent periodic data transmission method. 5.根据权利要求4所述的方法，其特征在于，所述使用端到端间歇周期数据传输方法进行回传数据的传输包括：5. The method according to claim 4, wherein the transmitting the backhaul data using the end-to-end intermittent periodic data transmission method comprises: 预先设置一个时间周期并在所述时间周期中为各个接受回传服务的Pico基站和中继Pico基站分配相应的时间点；Presetting a time period and assigning corresponding time points to each of the Pico base stations and relay Pico base stations that receive backhaul services in the time period; 将预先设置的时间周期和各个时间点分别发送给各个接受回传服务的Pico基站和中继Pico基站；Send the preset time period and each time point to each Pico base station and relay Pico base station receiving the backhaul service; 与各个接受回传服务的Pico基站和中继Pico基站同步时间周期和相应的时间点；Synchronize the time period and corresponding time points with each Pico base station and relay Pico base station that receive backhaul services; 与各个接受回传服务的Pico基站和中继Pico基站根据所述时间周期和相应的时间点进行回传数据的传输。The backhaul data is transmitted with each Pico base station receiving the backhaul service and the relay Pico base station according to the time period and the corresponding time point. 6.根据权利要求5所述的方法，其特征在于，该方法还进一步包括：6. The method according to claim 5, wherein the method further comprises: 与各个接受回传服务的Pico基站和中继Pico基站通过X2接口同步时间周期和相应的时间点。The time period and the corresponding time point are synchronized with each Pico base station and relay Pico base station receiving the backhaul service through the X2 interface. 7.根据权利要求5所述的方法，其特征在于，当有新的Pico基站接入网络时，所述与各个接受回传服务的Pico基站和中继Pico基站同步时间周期和相应的时间点之后还进一步包括：7. The method according to claim 5, wherein when a new Pico base station accesses the network, the time period and corresponding time point are synchronized with each Pico base station and relay Pico base station that receive backhaul services After that it further includes: 接收所述新的Pico基站发送的时间点请求信令；receiving the time point request signaling sent by the new Pico base station; 为该新的Pico基站设置相应的时间点，并将时间周期和所设置的时间点发送给新的Pico基站；Set a corresponding time point for the new Pico base station, and send the time period and the set time point to the new Pico base station; 与所述新的Pico基站同步时间周期和相应的时间点；Synchronizing the time period and the corresponding time point with the new Pico base station; 与所述新的Pico基站根据所述时间周期和相应的时间点进行回传数据的传输。Perform backhaul data transmission with the new Pico base station according to the time period and the corresponding time point. 8.根据权利要求7所述的方法，其特征在于，该方法还进一步包括：8. The method according to claim 7, wherein the method further comprises: 与所述新的Pico基站通过X2接口同步时间周期和相应的时间点。The time period and the corresponding time point are synchronized with the new Pico base station through the X2 interface. 9.一种无线回传的方法，其特征在于，该方法包括：9. A method for wireless backhaul, characterized in that the method comprises: 为接受回传服务的微微蜂窝Pico基站预先设置用于为相邻的Pico基站提供回传资源的专用天线、专用信道和专用频谱，并为接受回传服务的Pico基站预先设定一条到演进型基站eNodeB的路由路径；Dedicated antennas, dedicated channels, and dedicated spectrum for providing backhaul resources for adjacent Pico base stations are preset for the pico-cell Pico base stations that receive backhaul services, and a Pico base station that receives backhaul services is pre-configured to evolve The routing path of the base station eNodeB; 所述接受回传服务的Pico基站根据预先设定的路由路径，通过中继Pico基站发送回传数据，并接收通过所述中继Pico基站转发的回传数据；The Pico base station receiving the backhaul service sends backhaul data through the relay Pico base station according to a preset routing path, and receives the backhaul data forwarded through the relay Pico base station; 其中，所述eNodeB和中继Pico基站均预先设置有用于为相邻的Pico基站提供回传资源的专用天线、专用信道和专用频谱。Wherein, both the eNodeB and the relay Pico base station are preset with dedicated antennas, dedicated channels and dedicated frequency spectrums for providing backhaul resources for adjacent Pico base stations. 10.根据权利要求9所述的方法，其特征在于：10. The method according to claim 9, wherein: 所述路由路径为一跳路由路径或多跳路由路径。The routing path is a one-hop routing path or a multi-hop routing path. 11.根据权利要求9所述的方法，其特征在于，该方法还进一步包括：11. The method according to claim 9, wherein the method further comprises: 使用多输入多输出技术进行回传数据的传输。Use multiple-input multiple-output technology for the transmission of backhaul data. 12.根据权利要求9或11所述的方法，其特征在于，该方法还进一步包括：12. The method according to claim 9 or 11, wherein the method further comprises: 使用端到端间歇周期数据传输方法进行回传数据的传输。The transmission of backhaul data is carried out using the end-to-end intermittent periodic data transmission method. 13.根据权利要求12所述的方法，其特征在于，所述使用端到端间歇周期数据传输方法进行回传数据的传输包括：13. The method according to claim 12, wherein the transmitting the backhaul data using the end-to-end intermittent periodic data transmission method comprises: 接收一个预先设置的时间周期和被分配的时间点；Receive a preset time period and assigned time point; 与演进型基站eNodeB同步所述时间周期和相应的时间点；Synchronizing the time period and the corresponding time point with the evolved base station eNodeB; 根据同步后的时间周期和相应的时间点进行回传数据的传输。The transmission of the backhaul data is performed according to the time period after synchronization and the corresponding time point. 14.根据权利要求13所述的方法，其特征在于，该方法还进一步包括：14. The method of claim 13, wherein the method further comprises: 通过X2接口同步所述时间周期和相应的时间点。The time periods and corresponding time points are synchronized via the X2 interface. 15.一种无线回传的方法，其特征在于，该方法包括：15. A method for wireless backhaul, characterized in that the method comprises: 为中继微微蜂窝Pico基站预先设置用于为相邻的Pico基站提供回传资源的专用天线、专用信道和专用频谱；Pre-set dedicated antennas, dedicated channels and dedicated spectrums for the relay pico base station to provide backhaul resources for adjacent Pico base stations; 所述中继Pico基站根据预先设定的路由路径转发所接收到的回传数据；The relay Pico base station forwards the received backhaul data according to a preset routing path; 其中，接受回传服务的Pico基站预先设定有一条到演进型基站eNodeB的路由路径，且所述eNodeB和接受回传服务的Pico均预先设置有用于为相邻的Pico基站提供回传资源的专用天线、专用信道和专用频谱。The Pico base station receiving the backhaul service is preset with a routing path to the evolved base station eNodeB, and both the eNodeB and the Pico receiving the backhaul service are preset with a routing path for providing backhaul resources for adjacent Pico base stations. Dedicated antennas, dedicated channels, and dedicated spectrum. 16.根据权利要求15所述的方法，其特征在于，该方法还进一步包括：16. The method of claim 15, wherein the method further comprises: 使用多输入多输出技术进行回传数据的传输。Use multiple-input multiple-output technology for the transmission of backhaul data. 17.根据权利要求15或16所述的方法，其特征在于，该方法还进一步包括：17. The method according to claim 15 or 16, wherein the method further comprises: 使用端到端间歇周期数据传输方法进行回传数据的传输。The transmission of backhaul data is carried out using the end-to-end intermittent periodic data transmission method. 18.根据权利要求17所述的方法，其特征在于，所述使用端到端间歇周期数据传输方法进行回传数据的传输包括：18. The method according to claim 17, wherein the transmitting the backhaul data by using the end-to-end intermittent periodic data transmission method comprises: 接收一个预先设置的时间周期和被分配的时间点；Receive a preset time period and assigned time point; 与演进型基站eNodeB同步所述时间周期和相应的时间点；Synchronizing the time period and the corresponding time point with the evolved base station eNodeB; 根据同步后的时间周期和相应的时间点进行回传数据的传输。The transmission of the backhaul data is performed according to the time period after synchronization and the corresponding time point. 19.根据权利要求18所述的方法，其特征在于，该方法还进一步包括：19. The method of claim 18, wherein the method further comprises: 通过X2接口同步所述时间周期和相应的时间点。The time periods and corresponding time points are synchronized via the X2 interface. 20.一种无线回传系统，其特征在于，该系统包括：演进型基站eNodeB、接受回传服务的微微蜂窝Pico基站和至少一个中继Pico基站；20. A wireless backhaul system, comprising: an evolved base station eNodeB, a picocell Pico base station receiving backhaul services, and at least one relay Pico base station; 所述eNodeB，预先设置有用于为相邻的微微蜂窝Pico基站提供回传资源的专用天线、专用信道和专用频谱，用于为每个接受回传服务的Pico基站均预先设定一条到eNodeB的路由路径；还用于根据预先设定的路由路径，通过中继Pico基站将回传数据转发给接受回传服务的Pico基站，并接收接受回传服务的Pico基站通过中继Pico基站转发的回传数据；The eNodeB is preset with a dedicated antenna, dedicated channel and dedicated spectrum for providing backhaul resources for adjacent picocell Pico base stations, and is used to preset a message to the eNodeB for each Pico base station receiving backhaul services. Routing path; it is also used to forward the backhaul data to the Pico base station receiving the backhaul service through the relay Pico base station according to the preset routing path, and receive the backhaul transmitted by the Pico base station receiving the backhaul service through the relay Pico base station. transmit data; 所述中继Pico基站，预先设置有用于为相邻的微微蜂窝Pico基站提供回传资源的专用天线、专用信道和专用频谱，用于向eNodeB或接受回传服务的Pico基站转发回传数据；The relay Pico base station is pre-configured with a dedicated antenna, dedicated channel and dedicated spectrum for providing backhaul resources for adjacent picocell Pico base stations, and is used to forward backhaul data to the eNodeB or the Pico base station receiving the backhaul service; 所述接受回传服务的Pico基站，预先设置有用于为相邻的微微蜂窝Pico基站提供回传资源的专用天线、专用信道和专用频谱，用于接收回传数据；还用于将回传数据通过中继Pico基站发送给eNodeB。The Pico base station receiving the backhaul service is preset with a dedicated antenna, dedicated channel and dedicated spectrum for providing backhaul resources for adjacent picocell Pico base stations for receiving backhaul data; It is sent to the eNodeB through the relay Pico base station. 21.根据权利要求20所述的系统，其特征在于：21. The system of claim 20, wherein: 所述eNodeB，还用于预先设置一个时间周期并在所述时间周期中为各个接受回传服务的Pico基站和中继Pico基站分配相应的时间点，将预先设置的时间周期和各个时间点分别发送给各个接受回传服务的Pico基站和中继Pico基站，与各个接受回传服务的Pico基站和中继Pico基站同步时间周期和相应的时间点，并与各个接受回传服务的Pico基站和中继Pico基站根据所述时间周期和相应的时间点进行回传数据的传输。The eNodeB is further configured to preset a time period and allocate corresponding time points for each Pico base station and relay Pico base station that receive backhaul services in the time period, and the preset time period and each time point are respectively It is sent to each Pico base station and relay Pico base station that accepts backhaul services, synchronizes the time period and corresponding time point with each Pico base station and relay Pico base station that accept backhaul services, and communicates with each Pico base station and relay Pico base station that accepts backhaul services. The relay Pico base station transmits the backhaul data according to the time period and the corresponding time point. 22.根据权利要求21所述的系统，其特征在于，所述eNodeB包括：路径设定模块、发送模块和接收模块；22. The system according to claim 21, wherein the eNodeB comprises: a path setting module, a sending module and a receiving module; 所述路径设定模块，用于为每个接受回传服务的Pico基站均预先设定一条到eNodeB的路由路径；将所述预先设定的路由路径发送给发送模块；The path setting module is configured to preset a routing path to the eNodeB for each Pico base station that accepts the backhaul service; send the preset routing path to the sending module; 所述发送模块，用于根据预先设定的路由路径，通过中继Pico基站将回传数据转发给接受回传服务的Pico基站；The sending module is configured to forward the backhaul data to the Pico base station receiving the backhaul service through the relay Pico base station according to the preset routing path; 所述接收模块，用于接收接受回传服务的Pico基站通过中继Pico基站转发的回传数据。The receiving module is configured to receive the backhaul data forwarded by the Pico base station receiving the backhaul service through the relay Pico base station. 23.根据权利要求22所述的系统，其特征在于，所述eNodeB中还进一步包括：时间设置模块和同步模块；23. The system according to claim 22, wherein the eNodeB further comprises: a time setting module and a synchronization module; 所述时间设置模块，用于预先设置一个时间周期并在所述时间周期中为各个接受回传服务的Pico基站和中继Pico基站分配相应的时间点；将时间周期和各个时间点发送给同步模块；The time setting module is used to preset a time period and allocate corresponding time points for each Pico base station and relay Pico base station that receive backhaul services in the time period; send the time period and each time point to the synchronization module; 所述同步模块，还用于将预先设置的时间周期和各个时间点分别发送给各个接受回传服务的Pico基站和中继Pico基站，并与各个接受回传服务的Pico基站和中继Pico基站同步时间周期和相应的时间点，将同步后的时间周期和相应的时间点发送给所述发送模块和接收模块。The synchronization module is also used to send the preset time period and each time point to each Pico base station and relay Pico base station that receive backhaul services, and communicate with each Pico base station and relay Pico base station that receive backhaul services. The time period and the corresponding time point are synchronized, and the synchronized time period and the corresponding time point are sent to the sending module and the receiving module. 24.一种演进型基站，其特征在于，该演进型基站包括：路径设定模块、发送模块、接收模块以及预先设置的用于为相邻的微微蜂窝Pico基站提供回传资源的专用天线、专用信道和专用频谱；24. An evolved base station, characterized in that the evolved base station comprises: a path setting module, a sending module, a receiving module, and a preset dedicated antenna for providing backhaul resources for adjacent picocell Pico base stations, dedicated channels and dedicated spectrum; 所述路径设定模块，用于为每个接受回传服务的Pico基站均预先设定一条到所述演进型基站的路由路径；将所述预先设定的路由路径发送给发送模块；The path setting module is configured to preset a routing path to the evolved base station for each Pico base station receiving the backhaul service; send the preset routing path to the sending module; 所述发送模块，用于根据预先设定的路由路径，通过中继Pico基站将回传数据转发给接受回传服务的Pico基站；The sending module is configured to forward the backhaul data to the Pico base station receiving the backhaul service through the relay Pico base station according to the preset routing path; 所述接收模块，用于接收接受回传服务的Pico基站通过中继Pico基站转发的回传数据；The receiving module is configured to receive the backhaul data forwarded by the Pico base station receiving the backhaul service through the relay Pico base station; 其中，所述接受回传服务的Pico基站和中继Pico基站均预先设置有用于为相邻的Pico基站提供回传资源的专用天线、专用信道和专用频谱。Wherein, both the Pico base station receiving the backhaul service and the relay Pico base station are preset with dedicated antennas, dedicated channels and dedicated frequency spectrums for providing backhaul resources for adjacent Pico base stations. 25.根据权利要求24所述的演进型基站，其特征在于，所述演进型基站中还进一步包括：时间设置模块和同步模块；25. The evolved base station according to claim 24, wherein the evolved base station further comprises: a time setting module and a synchronization module; 所述时间设置模块，用于预先设置一个时间周期并在所述时间周期中为各个接受回传服务的Pico基站和中继Pico基站分配相应的时间点；将时间周期和各个时间点发送给发送模块；The time setting module is used to preset a time period and allocate corresponding time points for each Pico base station and relay Pico base station that receive backhaul services in the time period; send the time period and each time point to the sender. module; 所述发送模块，还用于将预先设置的时间周期和各个时间点分别发送给各个接受回传服务的Pico基站和中继Pico基站；The sending module is further configured to send the preset time period and each time point to each of the Pico base stations and relay Pico base stations that receive backhaul services; 所述同步模块，用于与各个接受回传服务的Pico基站和中继Pico基站同步时间周期和相应的时间点。The synchronization module is used for synchronizing the time period and the corresponding time point with each Pico base station and the relay Pico base station receiving the backhaul service. 26.一种接受回传服务的微微蜂窝Pico基站，其特征在于，该接受回传服务的Pico基站包括：第二发送模块、第二接收模块、预先设置的用于为相邻的微微蜂窝Pico基站提供回传资源的专用天线、专用信道和专用频谱以及预先设定的一条到演进型基站eNodeB的路由路径；26. A picocell Pico base station that accepts backhaul services, characterized in that the Pico base station that accepts backhaul services comprises: a second sending module, a second receiving module, a preset for the adjacent picocell Pico The base station provides dedicated antennas, dedicated channels and dedicated spectrum for backhaul resources, and a preset routing path to the evolved base station eNodeB; 所述第二发送模块，用于根据预先设定的路由路径，通过中继Pico基站发送回传数据；The second sending module is configured to send backhaul data through the relay Pico base station according to a preset routing path; 所述第二接收模块，用于接收通过所述中继Pico基站转发的回传数据；the second receiving module, configured to receive the backhaul data forwarded by the relay Pico base station; 其中，所述eNodeB和中继Pico基站均预先设置有用于为相邻的Pico基站提供回传资源的专用天线、专用信道和专用频谱。Wherein, both the eNodeB and the relay Pico base station are preset with dedicated antennas, dedicated channels and dedicated frequency spectrums for providing backhaul resources for adjacent Pico base stations. 27.根据权利要求26所述的接受回传服务的Pico基站，其特征在于，所述接受回传服务的Pico基站还进一步包括：第二同步模块；27. The Pico base station receiving the backhaul service according to claim 26, wherein the Pico base station receiving the backhaul service further comprises: a second synchronization module; 所述第二同步模块，用于接收一个预先设置的时间周期和时间点，并与演进型基站eNodeB同步所述时间周期和时间点，将同步后的时间周期和时间点发送给所述第二发送模块和第二接收模块；The second synchronization module is configured to receive a preset time period and time point, synchronize the time period and time point with the evolved base station eNodeB, and send the synchronized time period and time point to the second synchronization module. a sending module and a second receiving module; 所述第二接收模块，还用于根据同步后的时间周期和时间点接收通过所述中继Pico基站转发的回传数据；The second receiving module is further configured to receive the backhaul data forwarded by the relay Pico base station according to the synchronized time period and time point; 所述第二发送模块，还用于根据同步后的时间周期和时间点通过中继Pico基站发送回传数据。The second sending module is further configured to send back data through the relay Pico base station according to the synchronized time period and time point. 28.一种中继微微蜂窝Pico基站，其特征在于，该中继Pico基站包括：第三发送模块、第三接收模块以及预先设置的用于为相邻的微微蜂窝Pico基站提供回传资源的专用天线、专用信道和专用频谱；28. A relay picocell Pico base station, characterized in that the relay Pico base station comprises: a third sending module, a third receiving module, and a preset for providing backhaul resources for adjacent picocell Pico base stations. Dedicated antennas, dedicated channels and dedicated spectrum; 所述第三接收模块，用于接收回传数据，并将接收到的回传数据发送给第三发送模块；The third receiving module is configured to receive the return data, and send the received return data to the third sending module; 所述第三发送模块，用于根据预先设定的路由路径转发所接收到的回传数据；the third sending module, configured to forward the received backhaul data according to a preset routing path; 其中，接受回传服务的Pico基站预先设定有一条到演进型基站eNodeB的路由路径，且所述eNodeB和接受回传服务的Pico均预先设置有用于为相邻的Pico基站提供回传资源的专用天线、专用信道和专用频谱。The Pico base station receiving the backhaul service is preset with a routing path to the evolved base station eNodeB, and both the eNodeB and the Pico receiving the backhaul service are preset with a routing path for providing backhaul resources for adjacent Pico base stations. Dedicated antennas, dedicated channels, and dedicated spectrum. 29.根据权利要求28所述的中继Pico基站，其特征在于，所述中继Pico基站还进一步包括：第三同步模块；29. The relay Pico base station according to claim 28, wherein the relay Pico base station further comprises: a third synchronization module; 所述第三同步模块，用于接收一个预先设置的时间周期和时间点，并与演进型基站eNodeB同步所述时间周期和时间点，并将同步后的时间周期和时间点发送给所述第三发送模块和第三接收模块；The third synchronization module is configured to receive a preset time period and time point, synchronize the time period and time point with the evolved base station eNodeB, and send the synchronized time period and time point to the third synchronization module. Three sending modules and third receiving modules; 所述第三接收模块，还用于根据同步后的时间周期和时间点接收回传数据；The third receiving module is further configured to receive the return data according to the synchronized time period and time point; 所述第三发送模块，还用于根据同步后的时间周期和时间点转发所接收到的回传数据。The third sending module is further configured to forward the received backhaul data according to the synchronized time period and time point.
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