CN1863366A

CN1863366A - Method for coexisting base station finding neighborbood station and establishing liaison on initiation

Info

Publication number: CN1863366A
Application number: CNA2005100839722A
Authority: CN
Inventors: 邬旭永; 郑若滨
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2005-07-08
Filing date: 2005-07-15
Publication date: 2006-11-15
Anticipated expiration: 2025-07-15
Also published as: WO2007006220A1; CN100502548C

Abstract

This invention provides a method that a coexistence base station finds out an adjacent station and sets up connections with it at initialization including: setting a section of DCTFS in the down frame structure of the coexistence base station ( a down coexistence private use time frequency block), a new started base station utilizes the DCTFS to transmit liaison request report to the terminal in the region overlapped with the adjacent region and finds the adjacent station and sets up connection with it based on the fed back report, in which, the coexistence base station can find out adjacent stations quickly at starting and set up connection with them.

Description

The compossibility base station is found adjacent station and stands with the neighbour to set up the method for contact when initialization

Technical field

The present invention relates to communication field, relate in particular to a kind of when initialization the compossibility base station find adjacent station and stand to set up the method for contact with the neighbour.

Background technology

The broadband access method that broadband wireless access BWA (Broadband wireless access, broadband wireless access) equipment can be provided convenience for the user.Broadband wireless access equipment based on proprietary protocol is arranged at present, the broadband wireless access equipment based on standard agreement is also arranged.Wireless access wide band technology is just flourish at present, utilizes Radio Resource to carry out the technology that inserts the metropolitan area, broadband and has the very strong vitality and the market space.

Wireless frequency spectrum resource is very valuable.Particularly do not have the frequency range of permission, the operation of a plurality of base stations is often arranged on identical channel, cause the signal phase mutual interference of different base station in some zones of not planning well or some.Therefore, in order to coordinate with the coexistence between each base station equipment under the frequency range, especially the coexistence between each base station equipment of exempting from the licensed band need be set up the coexistence mechanism between some base station equipments.

In order to describe the present invention better, we introduce the definition at adjacent station earlier.

Adjacent station has been meant common overlay area, and contains the base station of effective terminal in the common overlay area.Than in the network as shown in FIG. 1, though BS1 and BS2 geography are very near, and BS1 and BS2 website itself are separately all in the other side's overlay area, owing to do not have effective terminal in the common overlay area of BS1 and BS2 website, therefore, the not very adjacent station of BS1 and BS2 website.Though and overlapping region is smaller between BS2 and BS3, separately not in the other side's overlay area, effective terminal in the overlapping coverage area constitutes the other side's wireless network is caused interference, so BS2 and BS3 are called adjacent station.

In the compossibility base station system, often require must guarantee between each base station the phase mutually synchronization of transmitting-receiving, require the regularly strict alignment of transmission, received signal frame between each base station, so just can ensure and can not cause mutual transmitting-receiving to disturb between the close website in geographical position.For example, BS1 in Fig. 1 and BS2, if BS1 BS2 when sending out is receiving, then BS1 can cause serious disturbance to the signal that BS2 receives subordinate terminal.

The basic structure of compossibility base station comprises three parts as shown in Figure 2: radio function part, wired funtion part and compossibility funtion part (containing the compossibility database).Compossibility funtion part and other two parts all have interface, wired funtion part receives wired core net or Access Network is responsible for wire communication relevant transmitting-receiving and processing, radio function partly is connected to the responsible radio communication transmitting-receiving of eating dishes without rice or wine and handles, and wired funtion part and radio function partly communicate.

The base station is divided into normal operating conditions and starts init state, in the compossibility base station system, often be connected to core net in the base station by wired path, and under can situation by wired intercommunication, new base station that starts near the base station of some operate as normal during initialization, want and adjacent station between set up message be faced with a lot of problems alternately.With compossibility base station network shown in Figure 3 is example.

The base station SBS1 that is starting is faced with close base station, a plurality of geographical position: WBS1, WBS2, WBS3 and WBS4, in Fig. 3, in the common overlay area of WBS1 and SBS1 terminal A, B are arranged, and have terminal that C is arranged in the common overlay area of WBS2 and SBS1, in the common overlay area of WBS3 and SBS1 terminal D is arranged.Therefore, WBS1, WBS2, WBS3 and SBS1 are adjacent stations.Terminal G is in base station WBS1 and WBS2 overlay area overlapping part.Other-end E/F/H/I/J/K is not in the overlapping region between the base station.

At this moment, SBS1 can't be directly and each WBS on eating dishes without rice or wine, communicate, and do not know the other side's contact method (as the IP address) in wired side yet.Therefore, SBS1 can't find its adjacent station and stand to set up with the neighbour to get in touch.But SBS1 can directly interfere with under each WBS overlay area overlap the terminal in the part with SBS1 again in the transmitting-receiving of eating dishes without rice or wine, and terminal not coordinated under a plurality of WBS makes SBS1 can't parse its loaded information for the mutual interference of SBS1 phase.

In these cases, the method that contact was found and set up at a kind of adjacent station in the prior art is: after base station initiated, by the message that the adjacent station of the input of eating dishes without rice or wine sends, this message is resolved the information that obtains adjacent station.

The shortcoming of this method is: owing to often can not directly receive the signal of the other side's website mutually between adjacent station, can't resolve the information that obtains the adjacent station of the other side.For example in the network of Fig. 3, SBS1 just can't directly detect the signal of WBS1.

The method that contact was found and set up at another kind of adjacent station in the prior art is: after base station initiated, SBS detects the signal of adjacent station subordinate terminal by simple detection method, this message is resolved the information that obtains adjacent station.

The shortcoming of this method is: owing to there is not security mechanism, the terminal at a plurality of adjacent stations is for the phase mutual interference of SBS1, though cause SBS1 can receive signal, but the correct content in the analytic signal, such as in Fig. 2, the signal of A, B, C, four terminals of D might clash, though cause SBS1 can receive the signal that each terminal sends when starting, can't parse the information of carrying in each signal.

The method that contact was found and set up at another kind of adjacent station in the prior art is: after base station SBS1 starts, by wired information such as its longitude and latitude are registered to a coexistence information server (CIS), server is judged its adjacent station by information such as longitudes and latitudes, and sends to the information (IP address etc.) at these adjacent stations of SBS1.

The shortcoming of this method is: because can't directly according to judging with the distance of other websites whether it causes interference mutually between adjacent station, therefore, server can't provide the information at reliable adjacent station to base station SBS1.In addition, because the compossibility base station system often is not to belong to fixing operator of a unified family, setting up and managing of this coexistence information server also has problem.In addition, this method need be introduced the equipment outside the compossibility base station system, has increased cost.

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 when initialization the compossibility base station find adjacent station and stand to set up the method for contact with the neighbour, thereby can make the compossibility base station when starting, find adjacent station fast and stand to set up contact with the neighbour.

The objective of the invention is to be achieved through the following technical solutions:

A kind of when initialization the compossibility base station find adjacent station and stand to set up the method for contact with the neighbour, comprising:

A, the one section special-purpose time-frequency piece of descending coexistence DCTFS is set in the downlink frame structure of compossibility base station;

B, the new base station that starts utilize described DCTFS initiatively to send the contact request message to the terminal of standing in the overlapping region with the neighbour, and find adjacent station and stand with the neighbour to set up contact according to the contact information of the contact message carrying of returning.

Described steps A specifically comprises:

A DCTFS is set in the downlink frame of each compossibility base station, or only in the downlink frame that satisfies the compossibility base station that imposes a condition, a DCTFS is set.

Described steps A also comprises:

In certain zone, time starting point, persistence length, original frequency and the combination of frequency of described DCTFS are fixed under each frequency range condition and unified.

Described step B specifically comprises:

B1, the new base station that starts utilize described DCTFS, and the terminal in the overlapping region of Xiang Yulin station is sent the contact request message, and the effective information that contact request message that this terminal will receive or contact request message carry is submitted to the neighbour station under this terminal;

Neighbour under B2, this terminal stands according to the contact request message that receives or through the entrained effective information of message after the terminating format conversion, return the contact message to the base station of new startup, contact is set up according to contact message that receives and described adjacent station in the new base station that starts.

Described step B1 specifically comprises:

B11, the new base station that starts utilize described DCTFS, and the terminal in the overlapping region of Xiang Yulin station is sent the contact request message of the contact information of the base station that comprises new startup;

B12, the neighbour of described terminal under this terminal stand and send the request that need report compossibility message, after the indication that can report that send at the neighbour station under receiving, the contact request message that receives are submitted to affiliated neighbour station.

Described step B12 also comprises:

Described terminal is utilized own original remaining bandwidth that distributes, the neighbour station under the contact request message that directly will receive is submitted to.

Described step B2 specifically comprises:

B21, when can be between the base station of new startup and the station of the neighbour under the described terminal by wired intercommunication, the contact message is returned by the base station of the new startup of cable modem road direction in described adjacent station;

After B22, the new base station that starts receive this contact message, the communication interaction at startup and described adjacent station, both sides set up effective wired contact.

Described step B2 specifically comprises:

B23, when can not be between the base station of new startup and the station of the neighbour under the described terminal by wired intercommunication, the one section special-purpose time-frequency piece of up coexistence UCTFS is set in the uplink frame structure of compossibility base station;

B24, the affiliated neighbour of described terminal stand and select coexistence contact terminal, and indicate this coexistence contact terminal to utilize UCTFS, the contact message that the network of representing this neighbour to stand returns to the transmission of the base station of new startup;

After B25, the new base station that starts receive this contact message, the communication interaction at startup and described adjacent station, the base station of new startup and described neighbour station utilize DCTFS and UCTFS to carry out information interaction by the contact terminal, and both sides set up the valid wireless contact.

Described step B23 specifically comprises:

A UCTFS is set in the uplink frame of each compossibility base station, or only in the uplink frame that satisfies the compossibility base station that imposes a condition, a UCTFS is set.

Described step B23 also comprises:

In certain zone, time starting point, persistence length, original frequency and the combination of frequency of described UCTFS are fixed under each frequency range condition and unified.

Described step B24 specifically comprises:

Contact terminal at the base station of a pair of new startup and adjacent station can be one or more, and this contact terminal can be provisional, also can be a period of time internal fixation.

C, a UCTFS who utilizes the ranging slot Ranging Slot in the agreement or in the uplink frame of each compossibility base station, be provided with, allow terminal send to eating dishes without rice or wine in turn belonging to the interrogation signals of the base station outside the base station originally, the carrying terminal belongs to the contact information of base station originally in the interrogation signals;

D, receive described signal just will obtain the contact information that terminal belongs to the base station originally in the base station of normal operating conditions in the base station of init state or just.

Described step C also comprises:

As seen from the above technical solution provided by the invention, the present invention compares with prior art, has following advantage:

1, the present invention need not to seek server for the base station SBS of new startup, just can find adjacent station fast by simple mechanism, and set up wired or wireless connecting each other with the neighbour station, the problem of having avoided adjacent station to hide;

2, the base station WBS that is working also can in time understand the base station situation that is starting, and collects the state information of each terminal that is in the overlapping interference region, makes fast with the compossibility of SBS and consulting and corresponding operating;

3, compatible existing 802.16 frame formats of the present invention, the adjacent station discovery stage need not public server, reduced the requirement that network is set up and manages, it is mutual that DCTFS that the present invention is set and UCTFS also can be used to solve the coexistence information of some the low amount of information outside the initialization.

Description of drawings

Fig. 1 is an adjacent station conceptual schematic view;

Fig. 2 is the basic structure schematic diagram of compossibility base station;

Fig. 3 is the compossibility base station network schematic diagram of example shown in the present;

Fig. 4 is the concrete process chart of the method for the invention;

Fig. 5 describes schematic diagram for the frequency domain of OFDM or OFDMA symbol;

Fig. 6 is the position view of DCTFS of the present invention in frame structure;

Fig. 7 is for being provided with the schematic diagram of a DCTFS in many physical frames;

Fig. 8 is when only DCTFS being set, the sequential schematic diagram of eating dishes without rice or wine to receive and dispatch of SBS before SBS starts;

Fig. 9 is SBS its concrete workflow schematic diagram in initialization procedure;

Figure 10 is the concrete workflow schematic diagram of the interior terminal of SBS and WBS overlapping region at the SBS initialization procedure;

Figure 11 is the concrete workflow schematic diagram of WBS in the SBS initialization procedure;

Figure 12 is for being provided with the schematic diagram of a pair of UCTFS and DCTFS in multiframe;

Figure 13 is for being provided with the schematic diagram of UCTFS and DCTFS in the different frame in multiframe;

Figure 14 is when only DCTFS being set, the sequential schematic diagram of eating dishes without rice or wine to receive and dispatch of SBS in the SBS start-up course;

Figure 15 is when simultaneously DCTFS and UCTFS being set, the sequential schematic diagram of eating dishes without rice or wine to receive and dispatch of SBS in the SBS start-up course;

Figure 16 is after the SBS startup is finished, the schematic diagram of eating dishes without rice or wine to take of SBS;

Figure 17 is the compossibility base station network schematic diagram of a kind of embodiment of the present invention;

Figure 18 is the network topology structure schematic diagram of a kind of embodiment of the present invention;

Figure 19 is SBS1, the terminal A of a kind of embodiment of the present invention and the interactive processing process schematic diagram between the WBS1;

Figure 20 is the compossibility base station network schematic diagram of another kind of embodiment of the present invention;

Figure 21 is the network topology structure schematic diagram of another kind of embodiment of the present invention;

Figure 22 is SBS1, terminal A among the another kind of embodiment of the present invention and the interactive processing process schematic diagram between the WBS1.

Embodiment

The invention provides a kind of when initialization the compossibility base station find adjacent station and stand to set up the method for contact with the neighbour.Core of the present invention is: in the downlink frame structure of compossibility base station, open up the one section special-purpose time-frequency piece of descending coexistence DCTFS, be used for specially with adjacent station overlapping region in terminal carry out the mutual of information, mutual according to this information obtains the contact information at adjacent station.

Describe the present invention in detail below in conjunction with accompanying drawing, the concrete handling process of the method for the invention comprises the steps: as shown in Figure 4

Step 4-1, in the downlink frame structure channel of compossibility base station, open up the one section special-purpose time-frequency piece of descending coexistence DCTFS.

The present invention at first need adopt OFDM (Orthogonal FrequencyDivision Multiplexing in the compossibility base station, OFDM) technology, and relevant co-located base station all has wired or wireless network interworking, so relevant co-located base station constitutes ofdm system.

The OFDM technology belongs to multi-carrier modulation technology, and its basic thought is that channel is divided into many orthogonal sub-channels, uses a subcarrier to modulate on each subchannel, and each subcarrier parallel transmission.This technology has under noise jamming the ability that transmits signal, usually is used in to be subjected to easily in the relatively poor transmission medium of external interference or opposing external interference ability.

A channel of ofdm system (for example 802.16 systems) comprises some subchannels (Subchannel), and each subchannel is made up of a lot of subcarriers.Comprise three kinds by the kind subcarrier that transmits data: data subcarrier: the subcarrier that is used to transmit data; Pilot sub-carrier: the subcarrier that is used to transmit pilot tone; Gap carrier wave: be not used in the subcarrier of any data of transmission, comprise boundary belt (Guard Band) and direct current subcarrier (DC Subcarrier).

Each sub-carrier can constitute OFDM or OFDMA (OFDM access) symbol, and the number of subcarrier has determined counting of FFT (fast fourier transform) conversion.The subcarrier of forming a subchannel can be adjacent, also can be non-conterminous.Such as, to describe in the schematic diagram at the frequency domain of OFDM shown in Figure 5 or OFDMA symbol, subcarrier is adjacent.

In the ofdm system that relevant co-located base station constitutes, for different users divides the FFT space of different up links, each user is transmitted on one or more subchannels.In ofdm system, the division of subchannel is a kind of FDMA mode, and carrier subset of each subchannel transmission is divided subchannel and mainly contained three kinds of methods:

First method is: the carrier wave of different subchannels is divided into continuous group, and this method implements the simplest, and the adjacent sub-channel interference is less, but the effect of the frequency diversity that acquires is relatively poor.

Second method is: the carrier wave of the different subchannels mode with rule is interweaved, and the effect of the frequency diversity that this method obtains is better, but the interference of system's antithetical phrase interchannel is comparatively responsive.

The third method is: the carrier wave of different subchannels is interweaved in pseudorandom mode, reduced interference between the base station thereby use different sequences to change sign indicating number by different base station.

The present invention need descending (DL) part define a DCTFS (special-purpose time-frequency piece coexists) in based on the frame structure of the coexisted wireless base station of OFDM technology, it is made of the time frequency space at one or more subchannels and one or more OFDM or OFDMA symbol place.Certainly also certain subchannel of definable as DCTFS.Time initial position (the T at this time-frequency piece place _{DCTFS_start}), time-frequency block length (time domain by one or more OFDM or OFDMA symbol constitutes), original frequency (F _{DCTFS_start}) and the combination of frequency frequency domain of one or more subchannels (be constitute) must be easy to be known and unified by all relevant base stations.Can will be on its time starting point, persistence length, original frequency and the combination of frequency in certain national region, under each frequency range condition, fix and unify, be convenient in correct time, initiate to get in touch with to ask when base station initiated.This time-frequency piece is not taken by any base station when having the compossibility interacting message.

Such as, can DCTFS be set to regular length time-frequency piece, as shown in Figure 6 in a fixed position of start of frame bits postpone.This time-frequency piece can all be provided with in each frame, all frames can be unified label, only clocklike on a part of frame DCTFS is being set, as shown in Figure 7.After the frame of all base stations is numbered, on the frame that each frame number can be divided exactly by N, DCTFS is set.

This DCTFS is used for to SBS issues initial message, therefore, before SBS starts, this time-frequency piece free time, is not taken by the base station.At this moment, SBS eat dishes without rice or wine receive and dispatch the sequential schematic diagram as shown in Figure 8.

Step 4-2, the new base station (SBS) that starts utilize DCTFS to neighbour station (WBS) overlapping region in terminal send contact and ask.

In the method, its concrete workflow specifically describes as follows SBS (the new base station that starts) as shown in Figure 9 in initialization procedure:

Behind SBS (the new base station that the starts) electrifying startup, at first finish the initialization of its wireline side, for example obtain IP address etc.Select target channel then.Whether detect this destination channel and disturb, if do not disturb, then illustrating in this base station and the adjacent overlapping region of standing does not have the interference of effective terminal to SBS, starts independently default configuration initialize routine; If interference is arranged, effective terminal in this base station and the adjacent overlapping region of standing then is described, so pass through overall situation timing information frequently, obtain the timing frequency information of the special-purpose time-frequency piece DCTFS that coexists.And in DCTFS, send the stand contact request message of base station, the information of needs when containing adjacent station contact SBS in this message to the neighbour to this effective terminal.

In above-described process, the process that detects destination channel is optional, (because effective terminal is because the needs of communication have been limited transmitting power probably when SBS starts, cause might SBS can interfered with terminal signal receive but SBS detects less than the transmitting of terminal, be to detect one of optional reason of destination channel process).

The contact request message that terminal in step 4-3, SBS and the WBS overlapping region will be received is submitted to the former affiliated WBS of this terminal.

In the method, terminal its concrete workflow in the SBS initialization procedure in SBS and the WBS overlapping region specifically describes as follows as shown in figure 10:

Terminal in SBS and the WBS overlapping region is monitored the signal on the DCTFS time-frequency piece in the normal data transmitting-receiving, in case receive the contact request of certain base station (SBS), the message that reports it to receive to its former affiliated base station (WBS) just.

Terminal can utilize own original remaining bandwidth that distributes directly to send to former affiliated base station (WBS), it also can be the mode that reports by application, elder generation's transmission need report the request of compossibility message, wait for the indication of WBS then, if receive the request that WBS indicates this terminal to report, then report the effective information in all contact request messages of receiving.

Because upstream bandwidth is a demand assigned, terminal not necessarily originally just had enough upstream bandwidths, and the user of terminal need be relatively large flow defrayment in principle, and these flows are base station services, so adopt application and report mode more reasonable.The base station is can be for the terminal distribution that needs report free like this reports dedicated bandwidth.

Step 4-4, WBS utilize cable network or contact terminal to send the contact message to SBS according to the contact request of receiving.

In the method, WBS its concrete workflow in the SBS initialization procedure specifically describes as follows as shown in figure 11:

If the compossibility base station WBS that is working receives that the needs of its subordinate's terminal to report report the request of compossibility message, then report request according to all that receive in a period of time, distribute upstream bandwidth to reporting terminal in a certain order, indicate its contact request message that obtains of this terminal to report then, contain the necessary information of wired contact SBS in these contact request messages.But certain WBS also receiving terminal passes through the message that request directly utilizes remaining bandwidth to report.

After WBS receives these contact solicited messages, can initiate the contact message to SBS by the wire cable between the compossibility base station.

When WBS is that independent networking or WBS can't be by wired core net and the mutual situations of SBS, then WBS also can specify the contact terminal, initiates the contact message by this contact terminal to SBS then.

At this moment, need also define a UCTFS (the special-purpose time-frequency piece of up coexistence) in UL (up) part in the original frame format in compossibility base station, it is made of the time frequency space at one or more subchannels and one or more OFDM or OFDMA symbol place.Certainly also certain subchannel of definable as UCTFS.The time initial position at its place and time length of a film (time domain that is one or more OFDM or OFDMA symbol constitutes), original frequency and combination of frequency (frequency domain that is one or more subchannels constitutes) must be easy to be obtained and unification by all relevant base stations.UCTFS and DCTFS time-frequency piece can all be provided with in each frame, all frames can be unified label, are only clocklike making DCTFS and UCTFS on a part of frame; Also can dispose DCTFS on a part of frame, be furnished with UCTFS on a part of frame, for example after the frame number to all base stations, every N frame (N is a natural number) be provided a DCTFS and UCTFS, as the frame (O, N, 2N, 3N.....) that frame number is divided exactly by N; Again for example to providing DCTFS on the frame that can be divided exactly by N, provide UCTFS on 1 the frame to being removed by N to surplus.The schematic diagram that a pair of UCTFS and DCTFS be set in multiframe as shown in figure 12, the schematic diagram that UCTFS and DCTFS be set in the different frame in the multiframe is as shown in figure 13.

So, when terminal after WBS has reported the contact request message, WBS can specify it to be and the CLSS of SBS (coexistence contact terminal), this moment, base station WBS can issue the contact indication, indicated this CLSS to utilize UCTFS to send specific compossibility to SBS and consulted signaling.After terminal received indication, its other signaling that need send of buffer memory used UCTFS to send corresponding contact message to SBS as requested.

If terminal is not designated as CLSS, terminal will proceed to monitor the work of the signal on the DCTFS time-frequency piece.CLSS is selected by WBS, can be provisional, specifies CLSS separately such as each message, also can be a period of time internal fixation, can specify a CLSS at being connected of a pair of WBS and SBS, also a plurality of CLSS can be arranged simultaneously.

Recited abovely report the message that sends with SBS can adopt ARQ mechanism (Automatic Retransmission Request, overtime the response automatically retransmitted behind the buffer memory) to WBS.

In the described in the above SBS start-up course, when only DCTFS being set, the eating dishes without rice or wine of SBS received and dispatched the sequential schematic diagram as shown in figure 14.

In the described in the above SBS start-up course, when simultaneously DCTFS and UCTFS being set, the eating dishes without rice or wine of SBS received and dispatched the sequential schematic diagram as shown in figure 15.

Step 4-5, SBS are after receiving the contact message of WBS, and SBS and WBS finish mutual compossibility configuration, and both sides set up effective netting.

SBS utilize DCTFS to the WBS overlapping region in terminal send contact request after, just wait for the contact message that WBS (having a plurality of) returns.

If SBS at the appointed time, received the contact information that adjacent station WBS sends by wired mode, then start communication interaction for this neighbour station, both sides set up effective wired connection, finishing the compossibility at our station and adjacent station consults and configuration, and carrying out follow-up communication interaction, the beginning operate as normal became WBS after SBS finished initialization.

If SBS at the appointed time, received the contact information that CLSS sends by UCTFS, then start communication interaction for this neighbour station (base station under the CLSS), the compossibility that utilizes DCTFS and UCTFS to finish our station and adjacent station is consulted and configuration, and carry out follow-up communication interaction, SBS starts the operate as normal of base station after initialization is finished, become WBS.

If SBS does not receive contact information in official hour, can retransmit the contact request of DCTFS.Repeat still not obtain adjacent station message behind the said process several times, then start the initialization scheme of default configuration, SBS starts the operate as normal of base station after initialization is finished, become WBS.

SBS start finish after, DCTFS and UCTFS will be idle once more, the eating dishes without rice or wine of SBS takies schematic diagram as shown in figure 16.

The present invention also provides the embodiment of the method for the invention, is example with compossibility base station network shown in Figure 17, and its network topology structure as shown in figure 18.

All connect between each base station, hung terminal separately down below each base station, establish and hung the A/B/E/G terminal under the WBS1, hung the C/F terminal under the WBS2, hung the D/H terminal under the WBS3 by wired network.(terminal that SBS1 hangs down can't initialization before the SBS1 operate as normal.) wherein with the SBS1 coverage in counterpart terminal A/B/C/D is arranged, G is in the coverage of WBS2 simultaneously.But before finishing the compossibility contact, SBS1 can't be known wired contact method at adjacent station, as information such as lP addresses.

In the start-up course of SBS1, according to the method for the invention, the interactive processing process between SBS1, terminal A and the WBS1 as shown in figure 19.Detailed process is as follows:

1, SBS1 starts and finishes the wireline side initialization, obtain with adjacent station and carry out the information that wired connection is used, as our station IP address etc., selected wireless channel, utilize DCTFS to send the contact request message then, comprise the information such as IP address of SBS1 in this contact request message to all terminals (comprising terminal A) of eating dishes without rice or wine to reach;

2, terminal A intercepts and captures this contact request message, and sends the request of coexistence information reporting to former affiliated base station WBS1 after the satellite information, receives the qualified terminal of the contact request message on the DCTFS, all can send the request of coexistence information reporting by the WBS1 under it;

3, WBS1 know report request after, report coexistence message dedicated bandwidth and specify its information reporting that coexists for designated terminal distributes, for example, if two terminals of A, B are all applied for the information reporting that coexists, and WBS1 can specify A wherein to report its compossibility message of receiving, also the terminal that can allow all applications report reports in regular turn;

4, after terminal A received and reports indication, the contact request message that the SBS1 that obtains is sent reported WBS1;

5, after WBS1 receives the contact request message that terminal A reports, send contact message by wired network to SBS1 with information (as the IP address etc.) according to wired contact of obtaining;

6, SBS1 is known itself and the contact method of adjacent station WBS1 from this message, sends the contact message by wired network to WBS1 then, and WBS1 has set up effective wired contact between SBS1 and WBS1 behind wired contact message that receives SBS1 once more.Thereafter both sides just can begin to comprise the various information interactions of compossibility negotiation.

With compossibility base station network shown in Figure 20 is example, and its network topology structure as shown in figure 21.

Base station WBS2 connect by wired network between the WBS3, and SBS1 and WBS1 can't be in the wired network intercommunication, and the wireless side interface is before finishing the compossibility contact, and SBS1 also can't be known the concrete contact method at adjacent station.Hang terminal separately down below each base station, established and hung the A/B/E/G terminal under the WBS1, hung the C/F terminal under the WBS2, hung the D/H terminal under the WBS3.(terminal that SBS1 hangs down can't initialization before the SBS1 operate as normal.) wherein with the SBS1 coverage in counterpart terminal A/B/C/D is arranged, G is in the coverage of WBS2 simultaneously.

In the start-up course of SBS1, according to the method for the invention, the interactive processing process between SBS1, terminal A and the WBS1 as shown in figure 22.Detailed process is as follows:

1, SBS1 starts and finishes wired and self some parts initialization, obtain be connected with adjacent station usefulness some necessary informations, as our station Site ID etc., selected wireless channel, utilize DCTFS to send the contact request message then, comprise the information such as ID of SBS1 in this contact request message to all terminals (comprising terminal A) of eating dishes without rice or wine to reach;

5, WBS selects one or more reporting terminals to get in touch with terminal (CLSS) as compossibility according to the judgement of the information via oneself that receives, and indicates it to utilize UCTFS to transmit the signaling of compossibility contact by common down going channel.

6, after CLSS receives the contact message of WBS transmission, utilize UCTFS to send this contact message to SBS;

7, SBS is known the contact message of its adjacent station WBS from the contact message that CLSS transmits, and utilizes DCTFS to send the compossibility message packet to this CLSS then;

8, CLSS will report the compossibility message packet buffer memory that receives the SBS transmission and report WBS.Between SBS and WBS set up the valid wireless contact thereafter.Thereafter both sides just can begin to comprise the information interaction of compossibility negotiation.

The present invention also provides a kind of replacement scheme of the present invention: utilize RangingSlot (ranging slot) or UCTFS of the present invention in the existing protocol to allow terminal send belonging to the interrogation signals of the base station outside the base station originally to eating dishes without rice or wine in turn, the carrying terminal belongs to the contact information of base station originally in interrogation signals or the mechanism, such as the IP address etc.The base station SBS or the WBS that receive this signal will obtain the contact information that terminal belongs to the base station originally.But this scheme can increase the burden of Ranging Slot ranging slot, and needs to unify to carry out the coordination of Ranging slot ranging slot between each website.

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

1, a kind of when initialization the compossibility base station find adjacent station and stand to set up the method for contact with the neighbour, it is characterized in that, comprising:

2, according to claim 1 described when the initialization compossibility base station find adjacent station and stand to set up the method for contact with the neighbour, it is characterized in that described steps A specifically comprises:

3, according to claim 2 described when the initialization compossibility base station find adjacent station and stand to set up the method for contact with the neighbour, it is characterized in that described steps A also comprises:

4, according to claim 1,2 or 3 described when the initialization compossibility base station find adjacent station and stand to set up the method for contact with the neighbour, it is characterized in that described step B specifically comprises:

5, according to claim 4 described when the initialization compossibility base station find adjacent station and stand to set up the method for contact with the neighbour, it is characterized in that described step B1 specifically comprises:

6, according to claim 5 described when the initialization compossibility base station find adjacent station and stand to set up the method for contact with the neighbour, it is characterized in that described step B12 also comprises:

7, according to claim 6 described when the initialization compossibility base station find adjacent station and stand to set up the method for contact with the neighbour, it is characterized in that described step B2 specifically comprises:

8, according to claim 6 described when the initialization compossibility base station find adjacent station and stand to set up the method for contact with the neighbour, it is characterized in that described step B2 specifically comprises:

9, described according to Claim 8 when initialization the compossibility base station find adjacent station and stand to set up the method for contact with the neighbour, it is characterized in that described step B23 specifically comprises:

10, according to claim 9 described when the initialization compossibility base station find adjacent station and stand to set up the method for contact with the neighbour, it is characterized in that described step B23 also comprises:

11, described according to Claim 8 when initialization the compossibility base station find adjacent station and stand to set up the method for contact with the neighbour, it is characterized in that described step B24 specifically comprises:

12, a kind of when initialization the compossibility base station find adjacent station and stand to set up the method for contact with the neighbour, it is characterized in that, comprising:

13, according to claim 12 described when the initialization compossibility base station find adjacent station and stand to set up the method for contact with the neighbour, it is characterized in that described step C also comprises: