CN1310451C - Method for upgrading base station with non-intelligent antenna to one with intelligent antenna and base band processing system - Google Patents
Method for upgrading base station with non-intelligent antenna to one with intelligent antenna and base band processing system Download PDFInfo
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- CN1310451C CN1310451C CNB01113416XA CN01113416A CN1310451C CN 1310451 C CN1310451 C CN 1310451C CN B01113416X A CNB01113416X A CN B01113416XA CN 01113416 A CN01113416 A CN 01113416A CN 1310451 C CN1310451 C CN 1310451C
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Abstract
The present invention relates to a method for upgrading a base station with a non-intelligent antenna to a base station with an intelligent antenna and a baseband processing system. Wave beam signals and non-upgrade sector signals of an up traveling upgrade sector and a down traveling upgrade sector are processed by the method through the replacement or the increase of the partial hardware of a sector which needs to be upgraded in the base station, and multiple wave beam signals are used for the coverage of an upgrade region. Furthermore, the upgrade system is provided with a data sampling bus, a time space 2D receiving module, a down traveling wave beam selection processing module and an up traveling wave beam network, the coverage range of the base station is widened under the condition of keeping same signal reception quality by the base station after upgraded, and business volume sustained by a communication system can be raised.
Description
The present invention relates to mobile communication technology, be specifically related to code division multiple access (CDMA) system of mobile communication technology, more particularly, relate to a kind of can be with in the mobile communication system, the non intelligent antenna base station in the many sectors of code division multiple access upgrades to the method for intelligent antenna base station, the invention still further relates to the band processing system that is used for the non intelligent antenna base station in the many sectors of mobile communication system code division multiple access is upgraded to intelligent antenna base station.
CDMA mobile communication system has begun to be applied, and Shang Yong exemplary is the IS-95 system of the U.S., just also generally adopts CDMA technology in standardized 3-G (Generation Three mobile communication system).Compare with other system mobile communication system such as time division multiple access (TDMA), frequency division multiple access (FDMA) system, CDMA has the advantage on capacity and the quality of service, but characteristics such as inherent frequency spectrum statistic multiplexing of CDMA and wireless channel are abominable have still limited the capacity of CDMA, and the fast development an urgent demand cdma system of mobile communication further promotes its systematic function on existing basis.In CDMA mobile communication system, by adopting space diversity or polarization diversity can improve the received power of signal, but can not reduce the power of interference, for this reason, in existing C DMA implementation method, generally adopt the technology of cell sectorization, be typically and divide into three or six sectors for a short time one, the two secondary directional antennas that cover 120 degree or 60 degree angular zones are adopted in each sector, rely on space diversity to improve the signal received power like this, the multiple access that the directive gain of dependence antenna has reduced between the user in the cdma system disturbs, and has finally improved the performance of system.But, the sub-district will bring many problems if being divided into too much sector, comprise that too much sector will cause the More Soft Handoff between the more sector, cause signaling burden very big between base station and the base station controller, it is user's distributing radio resource simultaneously that More Soft Handoff needs two sectors, might offset the capacity gain that sectorization is brought fully.
Operation along with network, mobile communication system originally needs dilatation, a kind of method is to increase new carrier frequency, this method needs new frequency spectrum resource, but radio spectrum resources is not unlimited, another kind method is a cell splitting, and this method need make up new base station, and excessive cell splitting causes the decline of junction efficiency.
The objective of the invention is to, provide a kind of non intelligent antenna base station to upgrade to the method for intelligent antenna base station, can overcome the above-mentioned shortcoming of prior art, utilize this method to need not addressing again and also need not new frequency spectrum resource, non intelligent antenna base station intelligent antenna base station be can be upgraded to, thereby the capacity and the communication quality of mobile communcations system improved.
Another object of the present invention provides the band processing system that a kind of non intelligent antenna base station upgrades to intelligent antenna base station, be used to be implemented under the situation of multi-user's communication, selection and stack to the uplink and downlink launching beam, finish the synthetic of multiple user signals, thereby reach the upgrading of base station quickly.
First purpose of the present invention is achieved in that a kind of non intelligent antenna base station of structure upgrades to the method for intelligent antenna base station, comprises the steps:
Change or increase the part hardware of the sector of need upgrading in the base station, described part hardware comprises antenna, feeder line, radio-frequency front-end, emission radio frequency, received RF, channel correcting, beam-forming network and power amplifier;
Use digital beam (DBF) or radio frequency beam formation method to be pre-formed the zone of the required upgrading of one group of up-downgoing wave beam coverage base station;
Be in More Soft Handoff in the up direction base station according to travelling carriage or be not in two kinds of situations of More Soft Handoff, the multiple-limb folding by base band merges array antenna beam multipath signal and other non-upgrading fan antenna multipath signal;
Be in More Soft Handoff in the down direction base station according to travelling carriage or be not in two kinds of situations of More Soft Handoff and the distribution of up multipath, select upgrading sector downlink wave beam or other non-upgrading fan antenna transmitting downstream signal.
Upgrading in the method for intelligent antenna base station according to non intelligent antenna base station provided by the invention, described replacing or increase in the hardware step of base station may further comprise the steps: with conventional antenna, be replaced by as diversity antenna and have N cellular array antenna; Increase feeder line to N; Increase radio-frequency front-end, emission radio frequency and received RF to N; It is N low-power amplifier that original high power amplifier is changed; Increase corresponding channel correcting part; Increase beam-forming network and receive and launching beam to form, wherein N is a natural number.
Upgrading in the method for intelligent antenna base station according to non intelligent antenna base station provided by the invention, in the step of described replacing or increase BTS hardware, also comprising the step of changing baseband circuit, to finish the function of signal processing.
Upgrading in the method for intelligent antenna base station according to non intelligent antenna base station provided by the invention, described use digital beam (DBF) or radio frequency beam form the step of up-downgoing wave beam, comprise the reception of aerial signal and the weighted sum phase shift treatment step of emission and signal; Wherein the weighted of signal and phase shift processing procedure make the baseband signal of each array element reception or emission interfere with each other, and form particular beam in the upgrade area of determining that needs.
Upgrading in the method for intelligent antenna base station according to non intelligent antenna base station provided by the invention, described up direction base station is according to mobile station state, the base band multiple-limb merged comprise the steps:
When travelling carriage is not in More Soft Handoff, the routine work mode is still adopted in sector for the traditional antenna service, do not make amendment, for the sector uplink processing method of array antenna service is to select to have user multipaths signal distributes certain or certain several wave beams as the work of reception wave beam, merges by the multiple-limb folding multipath signal that the multipath energy of each wave beam is stronger then;
When travelling carriage is in More Soft Handoff, the method of handling up link is to select all input signals, comprise that the multipath signal that multipath signal behind the multi-beam space filtering and traditional antenna receive handles, the multipath that the useful signal energy is stronger merges, and finishes the More Soft Handoff operation.
Upgrading in the method for intelligent antenna base station according to non intelligent antenna base station of the present invention, described down direction base station is selected to comprise the steps: according to mobile station state
When described travelling carriage is not in More Soft Handoff, transmitting downstream signal like this: the fan antenna signal of will not upgrading is launched in the usual way, to upgrading sector array beam signal, the user profile that up link is detected in the base station receives user's amplitude as arriving angle or uplink beam, forms downlink wave beam on this basis and realizes the down link directional transmissions;
When travelling carriage is in More Soft Handoff, the wave beam of transmitting downstream direction like this: down link signal is launched simultaneously at the antenna of two sectors, can select one or several wave beam to carry out the beams directed emission to the sector that upgrades to array antenna, conventional down link working method is adopted in the traditional antenna sector.
Upgrading in the method for intelligent antenna base station according to non intelligent antenna base station of the present invention, comprising also in the described downlink wave beam directional transmissions step that following two kinds are selected step:
When the multipath distribution is concentrated, in preformed a plurality of wave beams, select the wave beam that signal strength signal intensity is the highest as launching beam;
When multipath distributes dispersion, in preformed a plurality of wave beams, select the high wave beam of several signal strength signal intensities as launching beam.
Another object of the present invention is to realize like this, construct a kind of non intelligent antenna base station and upgrade to the band processing system of intelligent antenna base station, comprise the data sampling bus, space-time two-dimensional receiver module and launching beam form module, be connected with uplink beam network and sector diversity antenna on the interface of described data sampling bus, described space-time two-dimensional receiver module input interface links to each other with described data sampling bus, output interface forms module with launching beam and is connected, be connected with decoding circuit on the output interface of described space-time two-dimensional receiver module, be connected with spectrum-spreading and scrambling subscriber signal current circuit on the input interface of launching beam formation module.
Upgrading in the band processing system of intelligent antenna base station according to non intelligent antenna base station of the present invention, the a plurality of tracking branch module that be provided with search module in the described space-time two-dimensional receiver module, is connected with described search module, with described a plurality of multipath merging modules that branch's module is connected of following the tracks of, described search module, tracking branch module, be connected with data/address bus, described multipath merges module and is connected with decoding circuit.
Upgrading in the band processing system of intelligent antenna base station according to non intelligent antenna base station of the present invention, described beam selection is handled in the switch and is provided with the downlink wave beam transmit network, being connected with described network is used for selecting the simulation softward switch module of network wave beam number, and described software switch module is connected with search module in the space-time two-dimensional receiver module with spectrum-spreading and scrambling subscriber signal current circuit respectively.
Utilize non intelligent antenna base station provided by the invention to upgrade to the method for intelligent antenna base station, when a non intelligent antenna system of CDMA is partly upgraded to the CDMA antenna system, the base station controller part is only done a spot of software modification so that switch accordingly, wireless resource management algorithms such as power control are revised, the part that base station portion need change or increase comprises array antenna, feeder line, the radio-frequency channel, radio-frequency front-end, power amplifier, Base-Band Processing, and the inside of base station data/address bus, the inside of base station exchange, the interface unit of base station and base station controller and hop be not by making an amendment by reserved resource during the base station in design, thereby can save investment to greatest extent.Simultaneously, by the present invention, array signal process technique in the antenna system can be applied in the mobile communication system of code division multiple access, smart antenna is followed the tracks of each mobile subscriber who establishes a communications link, transmit and receive signal with narrower beams directed, compare with diversity antenna with omnidirectional antenna, has following advantage: by the antenna gain that relies on narrow wave beam to bring, improved the quality of reception of signal, under the condition that keeps same signal receiving quality, increased the coverage of base station in other words, the traffic carrying capacity that the raising system can support.With the employing diversity antenna, the non intelligent antenna system of directional antenna is compared, the benefit that smart antenna brings is not need too many inside of base station More Soft Handoff (switching between the sector), can adapt to the mobile environment of continuous variation neatly, brings bigger capacity or other performance gain.
Below in conjunction with accompanying drawing, the present invention is described in more detail with preferred embodiment, in the accompanying drawing:
Fig. 1 is a kind of system configuration schematic diagram that adopts the baseband signal receiver, transmitting method of non intelligent antenna system;
Fig. 2 is the cell cellular structural representation of a kind of cellular communication system of employing the method for the invention formation;
A kind of system configuration schematic diagram when three sectors non intelligent antenna base station partly upgraded to intelligent antenna base station of Fig. 3 for adopting that the present invention constitutes;
Fig. 4 is the used intelligent antenna base station band processing system of a inventive method structured flowchart;
Fig. 5 be in the upgrade method of the present invention in the switched-beam smart antenna mode of operation up direction receive, down direction launching beam configuration schematic diagram;
Fig. 6 adopts upgrade method of the present invention for expression and non intelligent antenna system is partly upgraded to the FB(flow block) of an embodiment of antenna system;
Fig. 7 is the process flow block diagram of up link during upgrading base station among Fig. 6 embodiment;
Fig. 8 is the process flow block diagram of down link during upgrading base station among Fig. 6 embodiment.
Smart antenna is divided into adaptive smart antenna and switched-beam smart antenna two classes.Adaptive smart antenna forms subscriber signal emission, receiving mode according to certain criterion.The switched-beam smart antenna need be pre-formed one group of wave beam to satisfy the uplink downlink requirements of one's work, this method has strong robustness, improves the characteristics of peripheral technology such as uplink downlink performance, compatible CDMA power control, switching simultaneously, therefore realize than being easier to, in the present invention, adopt the switched-beam smart antenna to be the upgrading antenna., can require to adopt antenna system according to traffic density, covering and economy etc., and adopt non intelligent antenna system when carrying out the cdma system networking actual in other base stations in some base station.Wherein non intelligent antenna base station is replaced by intelligent antenna base station two kinds of methods again, and a kind of method is to replace non intelligent antenna base station fully with intelligent antenna base station, and general output investment ratio is bigger.Another kind method is to be intelligent antenna base station by the removable parts software and hardware upgrade on non intelligent antenna base station basis.Intelligent antenna base station of the present invention is the base station that array antenna is adopted in part or all of sector, and non intelligent antenna system is meant that whole sectors adopt the base station system of conventional antenna,
Fig. 1 shows a kind of system construction drawing that adopts the baseband signal receiver, transmitting method of non intelligent antenna system; The front end of non intelligent antenna system base station is by diversity reception antenna 1,2,3 and diversity transmitting antenna 4,5,6, baseband conversion and digital-to-analogue, AD conversion unit 7,8,9,10,11,12, and baseband processing module formations such as (13,14,15,16).This base station receives the different space multipath signals that decline respectively with diversity antenna, and multipath signal carries out search, tracking and the merging of multipath through after the analog-to-digital conversion in RAKE receiver.The shortcoming of this structure of traditional base station is that the gain that diversity can obtain is tending towards constant with increasing of diversity antenna, and the spatial character of antenna does not obtain utilizing.
In the cellular communication system that the employing the present invention shown in Fig. 2 forms, because the finiteness of frequency spectrum resource, the mobile communication system of honeycomb is the best networking mode of generally acknowledging.Network build initial stage, user data traffic was little the time mobile network the base station can choose omni-directional shown in the figure or three sector type antenna configurations usually, this point is rational economically.Adopt the omni-directional antenna coverage cell as sub-districts such as C1, C4, C5, C7, C8, C10 among the figure, three fan antenna coverage cell are adopted in sub-districts such as C2, C4, C9, and the smart antenna coverage cell is then adopted in the C6 sub-district.Along with mobile subscriber's increase, the load of base station increases, and the regionality of user distribution will be more and more obvious, and the extreme inhomogeneities that causes customer charge spatially to distribute.For the consideration of economy, can select the inventive method that the part sector is upgraded to the smart antenna mode of operation.
Fig. 3 shows and adopts method provided by the present invention, the non intelligent antenna base station in three sectors is upgraded to an embodiment of intelligent antenna base station system structure; According to this embodiment, by suitably changing with one three sector configuration, every sector adopts the non intelligent antenna base station of spatial emission, receive diversity to upgrade to three sector base stations that use smart antenna, this intelligent antenna base station keeps the non intelligent antenna diversity pattern of original two sectors, promptly still adopt spatial emission and receive diversity, the diversity antenna of the 3rd sector replaces with array antenna, up direction forms 4 wave beams and covers whole sector, with the capacity that improves this sector, improve the covering of this sector or improve the signal receiving quality of this sector.As shown in the figure, set up 4 slave antennas 17 in the sector that needs form 4 wave beams and be used for spacing wave is received, 4 slave antennas 19 are used for the emission of downstream signal, receive and transmit available with common antenna with duplex mode work.The radiofrequency signal that antenna receives is carried out down-converted at Receiver Module 21, and radiofrequency signal is become baseband signal, and baseband signal is delivered to the digitlization that analog-to-digital conversion module 22 is sampled and sampled.Form 23 pairs of digitized baseband signals of module in the up link multi-beam and carry out space filtering.Do not adopt the sector of smart antenna still to receive, diversity antenna 18 as shown in FIG. with former diversity antenna; The radiofrequency signal that diversity antenna 18 receives is carried out processing such as down-conversion, sampling and sampling, and the multibeam signals of the signal after the processing behind space filtering delivered to (non intelligent antenna bus leaves surplus when designing) on the internal bus 24.Connecting space-time two-dimensional receiver module 28 on the bus 24, the space-time two-dimensional receiver module is finished user's multipath in the separation of spatial domain or time domain and merging and user's More Soft Handoff, decoding module 30 is delivered in its output, wherein decoding module and the course of work later on thereof, handle by original method shown in Figure 1, finish upward signal and receive.The space-time two-dimensional receiver module also will need the wave beam of emission for descending judgement is descending simultaneously, can reduce descending total interference level with narrow beams transmission, and an embodiment of this process can carry out with reference to Fig. 4.
Be sent to launching beam at the down direction customer traffic through spectrum-spreading and scrambling module 31 backs one tunnel and form module 29, launching beam forms the used wave beam of user region decision downlink that module 29 is judged according to up link, up received beam and the design of downlink wave beam can be inconsistent, and the beam configuration of up-downlink direction is with reference to Fig. 5.Under the More Soft Handoff situation, signal is also delivered to the emission radio-frequency module 27 of sector diversity antenna simultaneously, handles by the original method of down link shown in Figure 1.
Form in the structure at the intelligent antenna base station band processing system shown in Fig. 4, be provided with space-time two-dimensional receiver module 28, receiver module merges module 34 by search module 32, a plurality of tracking branch module 33, multipath, multipath merges module and is connected with decoding circuit 35, and the wave beam dateout of module 32,33 pairs of receptions of module bus 24 signals of sampling carry out Multipath searching and comparison, tracking in spatial domain and time domain.The multipath of 34 pairs of tracking of module carries out RAKE and merges processing, search for comparison procedure simultaneously and must finish the another one function, promptly need the user multipaths signal in each wave beam is analyzed, judge which wave beam user multipaths signal concentrates in, for the downlink wave beam emission provides control signal.This function can be finished by the following method, judges the degree of divergence of user multipaths signal, and selects several wave beams to do the downlink wave beam in view of the above, with this software switch of module 35 simulations, selects the downlink wave beam among the figure.Downlink wave beam selects module 29 can be provided with far more than the wave beam of uplink beam number according to complexity, the antijamming capability that system allows, and selects to be provided with 7 downlink wave beams among the figure.In actual multi-user's situation, signal demand and other subscriber signal of being input to module 29 are superimposed on the wave beam that needs separately to launch, and finish the synthetic of multiple user signals.
Fig. 5 shows by up direction reception in the switched-beam smart antenna mode of operation provided by the invention, the configuration of down direction launching beam and using method.Wave beam is not considered the influence of minor level among the figure, but does not influence the method for wave beam design.Be used for up reception as wave beam among the figure 36,38,40,42, can replace the uplink beam 1 ~ 4 among Fig. 4.The downlink wave beam is not the simple reprint of up received beam, but one group of wave beam through design, the embodiment that the present invention provides is a downlink wave beam except that containing the wave beam 36,38,40,42 that has with the identical directional property of uplink beam, also contain downlink wave beam 37,39,41 etc., form the down link wave beam that interweaves, these 7 wave beams can replace 7 downlink wave beams shown in Figure 4.If the multipath after the search relatively is when adjacent two wave beams all have bigger energy, the downlink wave beam promptly can select these two wave beams to be used for downlink, also can according to circumstances select wave beam 22,24 or 26 to carry out downlink in the space-time two-dimensional receiver module.
Partly upgrade in the escalation process flow chart of antenna system in the non intelligent antenna system shown in Fig. 6, three steps that comprise the requirements of process of upgrading, to intend upgrade area when square frame 43 is illustrated in upgrading covers with up-downgoing wave beam shown in Figure 5, realize user's space filtering, Fig. 3 is the principle schematic diagram of the specific implementation of this overwrite procedure; Square frame 44 expressions are handled to finish the upgrading of up link up upgrading sector beam signal and non-upgrading signal sector.Fig. 7 further provides the further refinement of this square frame 44 and represents.Square frame 45 expressions are handled to finish the upgrading of down link descending upgrading sector beam signal and non-upgrading sector signals.Fig. 8 has provided the specific implementation details of this square frame 45.
The process chart of up link when being upgrading base station shown in Figure 7 is corresponding to the detail of square frame among Fig. 6 44.In uplink processing, square frame 47,48 carries out space-time two-dimensional according to theory diagram shown in Figure 4 to subscriber signal and receive to form uplink data, will residing according to the user (More Soft Handoff) state when specifically handling, and carry out different space-time two-dimensionals and handle.Space-time two-dimensional receiver module 28 (Fig. 4) will export the descending wave beam that needs emission simultaneously, and this is the function that square frame 49 need be finished.
The processing procedure of down link when Figure 8 shows that upgrading base station when down link is handled, will be carried out downlink wave beam usefulness according to wave beam or the diversity antenna that the descending needs of up judgement are launched, and theory diagram shown in Figure 4 has been described the downlink process equally.This process and up process are similar, need to distinguish user's residing (More Soft Handoff) state, and using several wave beams or diversity antenna to finish the transmission of down link data according to distinguishing the result, the square frame 50,51,52 among the figure has provided this escalation process.
Will be noted that for those skilled in the art the present invention can also not deviated from basic thought of the present invention by embodiment by other concrete forms.Therefore embodiments of the invention are illustrative rather than restrictive.
Claims (9)
1, a kind of non intelligent antenna base station upgrades to the method for intelligent antenna base station, it is characterized in that, comprises the steps:
(a), according to the upgrading needs, a selected upgrading sector base stations is changed or is increased the hardware that needs in the upgrading sector base stations, antenna, feeder line, radio-frequency front-end, emission radio frequency, received RF, channel correcting, beam-forming network and power amplifier;
May further comprise the steps: diversity antenna is replaced by has N cellular array antenna; Increase feeder line to N; Increase radio-frequency front-end, launch radio frequency and accept radio frequency to N; It is N low-power amplifier that original high power amplifier is changed; Increase corresponding channel correcting part; Increasing beam-forming network receives and launching beam to form.
(b), the method that adopts digital beam or radio frequency beam to form is pre-formed the zone of the required upgrading of one group of up-downgoing wave beam coverage base station;
(c), in the up direction base station, be in More Soft Handoff or be not in two kinds of situations of More Soft Handoff according to travelling carriage, by the multiple-limb folding of base band, the array antenna beam multipath signal after changing and other non-upgrading fan antenna multipath signal are merged;
(d), in the down direction base station, be in More Soft Handoff or be not in two kinds of situations of More Soft Handoff and up multipath distributes according to travelling carriage, select upgrading sector downlink wave beam or other non-upgrading fan antenna transmitting downstream signal.
2, upgrade to the method for intelligent antenna base station according to the described non intelligent antenna base station of claim 1, it is characterized in that, in the hardware step of described replacing or increase base station, comprise that also the change baseband circuit is to finish the step of signal processing function.
3, upgrade to the method for intelligent antenna base station according to the described non intelligent antenna base station of claim 1, it is characterized in that, described use digital beam or radio frequency beam form in the step of up-downgoing wave beam, comprise the reception and the emission of aerial signal, the weighted sum phase shift treatment step of signal; Wherein weighted and phase shift process are carried out on base band or radio frequency.
4, upgrade to the method for intelligent antenna base station according to the described non intelligent antenna base station of claim 1, it is characterized in that, described step (c) may further comprise the steps:
When travelling carriage is not in More Soft Handoff; The routine work mode is still adopted in sector for the traditional antenna service, do not make amendment, for the sector uplink processing method of array antenna service is to select to have user multipaths signal distributes certain or certain several wave beams as the work of reception wave beam, merges by the multiple-limb folding multipath signal that the multipath energy of each wave beam is stronger then;
When travelling carriage was in More Soft Handoff: the method for handling up link was to select all input signals, comprise that the multipath signal that multipath signal behind the multi-beam space filtering and traditional antenna receive handles, the multipath that the useful signal energy is stronger merges, and finishes the More Soft Handoff operation.
5, upgrade to the method for intelligent antenna base station according to the described non intelligent antenna base station of claim 1, it is characterized in that, described step (d) may further comprise the steps:
When travelling carriage is not in More Soft Handoff; Downlink signal-transmitting method is: the fan antenna signal of not upgrading is launched in the usual way; To upgrading sector array beam signal, the user profile that up link is detected in the base station receives user's amplitude as arriving angle or uplink beam, forms downlink wave beam on this basis and realizes the down link directional transmissions;
When travelling carriage was in More Soft Handoff: the beam transmission method of down direction was that down link signal is launched simultaneously at the antenna of two sectors, can select one or several wave beam to carry out the beams directed emission to the sector that upgrades to array antenna, conventional down link working method emission is adopted in the traditional antenna sector.
6, upgrade to the method for intelligent antenna base station according to the described non intelligent antenna base station of claim 6, it is characterized in that, described downlink wave beam directional transmissions step also comprises following selection step:
When the multipath distribution is concentrated, in preformed a plurality of wave beams, select the wave beam that signal strength signal intensity is the highest as launching beam;
When multipath distributes dispersion, in preformed a plurality of wave beams, select the high wave beam of several signal strength signal intensities as launching beam.
7, a kind of non intelligent antenna base station upgrades to the band processing system of intelligent antenna base station, it is characterized in that, comprise data sampling bus (24), 2 dimension receiver modules (28) and launching beam form module (29) when empty, be connected with uplink beam network (23) and diversity antenna (18) on the interface of described data sampling bus (24), described when empty 2 dimension receiver module (28) input interfaces link to each other with described data sampling bus (24), output interface forms module (29) with launching beam and is connected, describedly also be connected with decoding circuit (30) on the output interface of 2 dimension receiver modules (28) when empty, launching beam forms on the input interface of module (29) and is connected with spectrum-spreading and scrambling subscriber signal current circuit module (31)
8, described according to Claim 8 non intelligent antenna base station upgrades to the band processing system of intelligent antenna base station, it is characterized in that, describedly be provided with in the 2 dimension receiver modules (28) when empty, search module (32), the a plurality of tracking branch's modules (33) that are connected with search module (32), the multipath that is connected with a plurality of tracking branch's modules (33) merges module (34), described search module (32), tracking branch's module (33), be connected with data/address bus, described multipath merges module (34) and is connected with decoding circuit (30).
9, described according to Claim 8 non intelligent antenna base station upgrades to the band processing system of intelligent antenna base station, it is characterized in that, described beam selection is handled in the switch and is provided with: the downlink wave beam transmit network, being connected with described network is used for selecting the simulation softward switch module (35) of network wave beam number, and described software switch module (35) is connected with spectrum-spreading and scrambling subscriber signal current circuit (31) search modules (32) in the 2 dimension receiver modules (28) when empty respectively.
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| CNB01113416XA CN1310451C (en) | 2001-06-08 | 2001-06-08 | Method for upgrading base station with non-intelligent antenna to one with intelligent antenna and base band processing system |
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| CN112910535B (en) * | 2021-02-05 | 2023-03-24 | 陕西天基通信科技有限责任公司 | Method for improving coverage efficiency of 5G repeater |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1173266A (en) * | 1994-11-29 | 1998-02-11 | 夸尔柯姆股份有限公司 | Method and apparatus for providing redundant radio coverage within a vellular communication system |
| CN1235440A (en) * | 1998-04-08 | 1999-11-17 | 株式会社日立制作所 | Method and apparatus for radio communication |
| WO2000064206A1 (en) * | 1999-04-15 | 2000-10-26 | Telefonaktiebolaget Lm Ericsson (Publ) | Adaptive sectorization |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1173266A (en) * | 1994-11-29 | 1998-02-11 | 夸尔柯姆股份有限公司 | Method and apparatus for providing redundant radio coverage within a vellular communication system |
| CN1235440A (en) * | 1998-04-08 | 1999-11-17 | 株式会社日立制作所 | Method and apparatus for radio communication |
| WO2000064206A1 (en) * | 1999-04-15 | 2000-10-26 | Telefonaktiebolaget Lm Ericsson (Publ) | Adaptive sectorization |
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