CN1295739A

CN1295739A - Signal combining method in base station of CDMA system

Info

Publication number: CN1295739A
Application number: CN99804654A
Authority: CN
Inventors: F·P·安东尼奥
Original assignee: Qualcomm Inc
Current assignee: Qualcomm Inc
Priority date: 1998-03-31
Filing date: 1999-03-30
Publication date: 2001-05-16
Also published as: AU3218899A; WO1999050973A1; KR20010042281A; JP2002510896A; EP1068679A1

Abstract

Prior to transmission from the base station, a signal combining method for a CDMA system combines individual frequency channels (f1, f2, f3, f4) into sets of frequency channels such that no two frequency channels in any one set are adjacent in frequency. A dual diversity reception and transmit signal combining system includes two or more signal combiners (34, 36) each coupled to a respective set of frequency channels in which no two frequency channels are adjacent. Two or more duplexors (62, 64) are each coupled to a respective signal combiner. An antenna (38) is connected to each duplexor (62, 64), and two or more splitters (56, 58) are each coupled to a respective duplexor. The respective signal combiners and duplexors can be integrated into single devices.

Description

Signal combining method in the base station of CDMA system

Background of invention

I. invention field

Present invention relates in general to radio communication field, the signal that relates in particular in multichannel code division multiple access (CDMA) communication system merges.

II. background

Radio communication field has many application, for example comprises cordless telephone, paging, wireless local loop and satellite communication system.A kind of application of particular importance is the cellular telephone system that is used for the mobile subscriber.(as used herein, term " honeycomb fashion " system comprises Cellular Networks and PCS frequency).Developed various air interfaces (over-the-air interface) for this class cellular telephone system, for example comprised: frequency division multiple access (FDMA), time division multiple access (TDMA) and code division multiple access (CDMA).With its relatively, developed various internal and international standards, for example comprise Advanced Mobile Phone Service (AMPS), global system for mobile communications (GSM) and tentative standard 95 (IS-95).Particularly, telecommunications industry association (TIA) and other famous standard entity have been announced IS-95 and have been derived from (this paper are commonly referred to as IS-95) such as standard I S-95A and ANSI J-STD-008.

Cellular telephone system according to the IS-95 structure uses the CDMA signal processing technology that efficient and strong cellular phone business is provided.United States Patent (USP) the 5th, 103 has been described basically the cellular telephone system according to the IS-95 standard construction for No. 459 for example.This patent has transferred assignee of the present invention, and its whole contents is introduced in this with the reference form.Above-mentioned patent description transmission signal in the cdma base station or the processing procedure of forward link signal.U.S. Patent application has been described the received signal in cdma base station or the processing procedure of reverse link signal for the 08/987th, No. 172 for example, and the applying date of this application is on December 9th, 1997, and denomination of invention is " a multiple channel demodulation device ".Described U.S. Patent application has transferred assignee of the present invention, and its whole contents is introduced in this with the reference form.In cdma system, power control is key issue.United States Patent (USP) the 5th, 056, the Poewr control method of describing cdma system for example No. 109, this patent has transferred assignee of the present invention, and its whole contents is introduced in this with the reference form.

Using a principal benefits of CDMA air interface is to be with at same radio frequency (RF) to communicate.For example, each mobile user devices (generally being cellular phone) in a given cellular telephone system can be by sending reverse link signal, with same base station communication on the RF spectrum of 1.25 identical MHz.Equally, can communicate by letter with many mobile devices by send forward link signal on the RF spectrum of another 1.25 MHz in each base station in this system.

Sending signal on same RF spectrum can have many benefits, for example improves the channeling to cellular telephone system, and improves the ability of carrying out soft handover between two or more base stations.Increase channeling allows to carry out greater number on the given frequency spectrum of a size calling.Soft handover is a kind of strong method of the area of coverage transition mobile device in two or more base stations, and mobile device simultaneously and two base-station interfaces here.(opposite, direct-cut operation is the interface that stopped before setting up interface with second base station with first base station.) United States Patent (USP) described a kind of method of carrying out soft handover the 5th, 267, No. 261 for example, this patent has transferred assignee of the present invention, and its content is introduced in this with the reference form.

In the cdma system according to the IS-95 standard operation, all launch or the one or more spread spectrum signals of radiation each sector of each base station, and each spread spectrum signal takies a different frequency range or channel.With the speed of per second 1.2288 million chips, with pseudo noise (PN) sequence spreading each signal extension spectrum signal is modulated, produce the wide signal of about 1.25 MHz.When must the radiation more than signal of a given sector of base station, must do to a certain degree to merge to these signals.When carrying out this merging after power-amplifier stage, combiner must provide isolation, is not subjected to the influence of the signal of other power amplifier generation to protect each power amplifier.If this isolation can not be provided, can produce undesirable intermodulation product so.Perhaps, cause amplifier to break down.Certainly, should be appreciated that for cdma cellular formula system, this is not unique to sending closing of signal.Also send the multichannel signal such as other Cellular Networks standards such as AMPS, GSM, and therefore use signal to merge from each sector of base station.But,, be simplified so merge because that the honeybee of this type systematic scurries the net channeling is very sparse.

Traditionally, have many methods and can realize that signal merges.A kind of method claims the space to merge, and is drawn towards an independently antenna from the output of each power amplifier.Exist fully between the antenna and isolate, cause each power amplifier not to be subjected to the influence of the output of other amplifier.Owing to attempt to allow antenna cover, so antenna is often referred to same direction, and must be separated by enough far, so that needed Signal Spacing to be provided with-geographic area.Be appreciated that this method becomes pretty troublesome when the number of signals that needs to merge is very big.

Another kind conventional method of combined signal in the sector is to use frequency-selecting signal combiner.For example, use the power output of frequency-selecting signal combiner merging, and combined signal is sent to individual antenna from two power amplifiers.The signal combiner must allow two input signal to arrive its output, prevents that simultaneously any one input signal from arriving the input of another input signal.Generally realize this task by a pair of frequency-selecting filter in the combiner.But, it will be understood by those skilled in the art that and can also design the frequency-selecting combiner with various internal circuit topologies.Also know in the art, when finishing above-mentioned task, can provide an isolator for frequency-selecting filter.In general, the combiner isolation amount that must the obtain decibels of being decayed when it appears at the another port by the signal of input one port illustrates.

For example, if in such as the AMPS system, two signal frequencies are got enough and are opened, and are easy to design the frequency-selecting combiner so.For example, in this AMPS system, all launch on 1/7 channel of the spendable channel of whole system usually each sub-district.In the sub-district that is divided into three sectors, each sector all will be launched on 1/3 frequency of these frequencies, promptly launch on 1/21 frequency of sum frequency amount.Therefore, the design of AMPS sub-district can utilize this sparse channeling, so that realize frequency-selecting signal combiner.For example, for two channels (in this type systematic, each channel is that 30 kHz are wide) that merge in the AMPS system, be spaced apart 21 * 30 kHz, perhaps 630 kHz among the channel between the frequency of heart.Two filters in the combiner all must be by the wide channel (passband) of 30 kHz, and to suppress another be the wide channel of 30 kHz (stopband) at least 20 dB equally.The width of relative passband of the transition band between passband and the stopband and stopband is very big, and this makes can realize frequency-selecting filter relatively simply in the AMPS system.

But in the cdma system according to the IS-95 standard operation, each channel can use in each sector of each sub-district.Therefore, between the channel that must merge, do not require the interval that existence is very big.In the CDMA sub-district, the signal in the channel of the two or more direct neighbors of necessary usually merging.Owing to these reasons, be difficult to design and make the frequency-selecting signal combiner that is used for cdma cellular formula telephone system.Therefore, need a kind of effective frequency-selecting method that can in cellular base stations, merge the CMDA carrier signal.

Summary of the invention

The present invention aims to provide a kind of effective frequency-selecting method that can merge the CDMA carrier signal in cellular base stations.Correspondingly, a kind of signal combining method may further comprise the steps: indivedual channels are merged in the channel-group, make that any two indivedual channels are all non-conterminous on frequency in any one group of channel; And transmission channel-group.Best, it is spread spectrum signals that one or more channels are arranged in the channel that is sent out.It is the signals of abideing by TIA IS-95A standard or ANSI J-STD-008 standard that one or more channels are arranged in the channel that advantageously, is sent out.

In a first aspect of the present invention, send the signal combination system and advantageously comprise two or more antennas, and two or more signal combiner.Each signal combiner all links to each other with separately antenna, and with separately channel-group coupling, so select channel-group, making does not have two channels adjacent on frequency in any one group of channel.

Of the present invention second independent aspect, dual diversity receives and sends the signal combination system and advantageously comprises: two or more signal combiners, each combiner all is coupled with a different set of channel, and any two channels are all non-conterminous on channel in any one group of channel; With two or more duplexers, each duplexer all with the coupling of separately signal combiner.There is an antenna to link to each other, and two or more separators and the coupling of duplexer are separately arranged with each duplexer.

Of the present invention the 3rd independent aspect, dual diversity receives and sends the signal combination system and advantageously comprises: two or more comprehensive duplexer/combiners, each comprehensive duplexer/combiner all is coupled with a different set of channel, and any two channels are all non-conterminous on channel in any one group of channel.There is an antenna to link to each other, and two or more separators and comprehensive duplexer separately/combiner coupling are arranged with each comprehensive duplexer/combiner.

Summary of drawings

Fig. 1 is the block diagram of cellular telephone system.

Fig. 2 is a block diagram, shows the transmission signal combination system that uses in a sector of the base station of Fig. 1 cellular telephone system.

Fig. 3 is a curve chart, shows a pair of adjacent channel that sends to frequency-selecting signal combiner, and to being used to handle the response requirement of a pair of filter of channel separately in the frequency-selecting signal combiner.

Fig. 4 is a curve chart, shows a pair of non-adjacent channel that sends to frequency-selecting signal combiner, and to being used to handle the response requirement of a pair of filter of channel separately in the frequency-selecting signal combiner.

Fig. 5 is a block diagram, shows the dual diversity that uses and receive and send the signal combination system in a sector of the base station of Fig. 1 cellular telephone system.

Fig. 6 is a block diagram, shows the dual diversity that uses and receive and send the signal combination system in a sector of the base station of Fig. 1 cellular telephone system, and this system uses comprehensive duplexer/combiner.

Fig. 7 is a curve chart, shows the overlapping channel of single bandwidth greater than channel spacing.

Fig. 8 is a curve chart, shows the overlapping channel with different bandwidth.

The detailed description of preferred embodiment

As shown in Figure 1, the cdma wireless telephone system generally comprises a plurality of mobile user devices 10, a plurality of base station 12, base station controller (BSC) 14, and mobile switching centre (MSC) 16.MSC 16 is configured to be connected with traditional public switch telephone network (PSTN) 18.MSC 16 also is configured to be connected with BSC 14.BSC 14 and each base station 12 coupling.Base station 12 is also referred to as BTS under CROS environment (BTS).Perhaps, refer to BSC 14 and one or more BTS 12 with " base station " system in the industry, wherein BTS 12 can also be called " station, district " 12.(in another kind is represented, the sector among the given BTS 12 being called the station, district).Mobile user devices 10 generally is a cellular phone 10, and advantageously, the cdma system of cellular telephone system for being constructed according to the IS-95 standard.

In the typical operation of cellular telephone system, many groups reverse link signal that base station 12 receives from many groups mobile device 10.Mobile device 10 is carrying out call or other communication.Handled in this base station 12 by each reverse link signal that a given base station 12 receives.The data of gained are sent to BSC 14.BSC 14 provides call resources to distribute and the mobile management function, comprises the soft handover of coordination between base station 12.BSC 14 also sends to MSC 16 with the data that receive, and MSC 16 provides additional Route Selection service, so that link with PSTN 18.Equally, PSTN 18 and MSC 16 link, and MSC 16 and BSC 14 link, and take turns current control base station 12 by BSC 14, send to many group mobile devices 10 so that will organize forward link signal more.

In the cdma system of Fig. 1, each base station 12 comprises a sector (not shown) at least, and each sector all comprises an antenna, the direction of radially leaving base station 12 that this antenna direction one is specific.Best, each base station 12 all comprises three sectors, and each fan antenna indication radially all differ 120 the degree.

In a certain embodiments, as shown in Figure 2, merge a plurality of signals that sent by the base station given sector with sending signal combination system 30, and protect each power amplifier 32 not to be subjected to the influence of the signal of dump power amplifier 32 generations.Advantageously, send the combination that signal combination system 30 usage spaces merge and the frequency-selecting signal merges.

Send signal combination system 30 and advantageously comprise four channels, they have centre frequency f1, f2, f3 and f4 respectively.One of four channels and base station sends signal processing path (not shown) coupling.United States Patent (USP) the 5th, 103 has been described the transmission signal processing that carries out No. 459 in a routine cdma base station, this patent has transferred assignee of the present invention, and its whole contents is introduced in this with the reference form.It will be understood by those skilled in the art that the channel that can use any fair amount.Each channel is imported a specific power amplifier 32, four power amplifiers 32 are arranged in illustrated embodiment.Be configured to the power amplifier 32 of f1 channel coupling, output signal sent to the first input end A of the first frequency-selecting signal combiner 34.Be configured to the power amplifier 32 of f2 channel coupling, output signal sent to the first input end A of the second frequency-selecting signal combiner 36.Be configured to the power amplifier 32 of f3 channel coupling, output signal sent to the second input B of the first frequency-selecting signal combiner 34.Be configured to the power amplifier 32 of f4 channel coupling, output signal sent to the first input end B of the second frequency-selecting signal combiner 36.The first frequency-selecting signal combiner is configured to, and the signal of output C is sent to first antenna 38.The second frequency-selecting signal combiner 36 is configured to, and will send to second antenna 40 from the signal of output C.Although it will be understood by those skilled in the art that in illustrated embodiment, in a sector of illustrative cdma base station, there are two antennas, in a sector, can have to appoint and watch number of antennas.

As the skilled person understands, power amplifier 32 and frequency-selecting signal combiner 34 and 36 are legacy devices, and commercially available again.As the skilled person understands, each frequency-selecting signal combiner 34 and 36 all advantageously comprises two filters, and two that are used to handle separately receive channel.But, be also to be understood that as known in the art, can be with the Design of Filter frequency-selecting signal combiner 34 and 36 (so that handle the channel of any fair amount, according to specific cdma base station sectors type) of any fair amount.

In operating process, be spaced apart 1.25 more favourable MHz between channel f1, f2, f3 and the f4.But, should be appreciated that, can use any rational interval.Channel f1 and f3 with frequency-selecting signal folding merging odd-numbered send it to first antenna 38 then.Equally, channel f2 and f4 with frequency-selecting signal folding merging even-numbered send it to second antenna 40 then.In this way, non-conterminous channel is grouped on the antenna together, reduces performance requirement thus, thereby make combiner at lower cost frequency-selecting combiner 34 and 36.

As used herein, for any a pair of channel, term " non-conterminous " or " with ... non-conterminous " be meant that the bandwidth of two channels is a channel size at least separately.Therefore, if the interval between the low belt edge of the high belt edge of first channel and second channel thinks so that more than or equal to the minimum bandwidth of distributing to a channel in the cdma system two adjacent channels are non-conterminous.On the other hand, if the high belt edge of first channel is left one section spectral distance of low belt edge of second channel, this spectral distance thinks so that less than the minimum bandwidth of distributing to a channel in the cdma system first and second adjacent channels are adjacent.

As shown in Figure 3, if the bandwidth of a pair of channel shoulder to shoulder, think that so these two channels are adjacent.As known in the art, if after power-amplifier stage, two adjacent channels in the cdma system are sent to same frequency-selecting signal combiner, so as shown in Figure 3, must reach the responding ability of ideal filter to the desired response of filter in the signal combiner.

As shown in Figure 4, the bandwidth of a pair of non-conterminous channel is not shoulder to shoulder.Be consistent with embodiment shown in Figure 2, in the curve chart of Fig. 4, be inserted in the channel of even-numbered between the channel of a pair of odd-numbered.From Fig. 4 as seen, the desired response of filter in the frequency-selecting signal combiner is not needed to reach the responding ability of ideal filter.In illustrated embodiment, between the passband of each filter and stopband, there is the wide transition band of 1.25 MHz, this allows filter to construct under the not too strict condition of Performance Constraints.

Best, in each sector of each cdma base station of Fig. 1 system, repeat embodiment shown in Figure 2.Also can use other embodiment that in a sector, has different channel and/or antenna amount.

Be known in the art, cellular telephone system uses two or more antennas in each sector.This permission receives (being commonly referred to diversity reception) with two antennas, with the ability of anti-signal fadeout that improvement is provided.As shown in Figure 5, in a specific embodiment, carry out diversity reception and send signal merging two operations with a pair of antenna.

In the embodiment shown in fig. 5, dual diversity receives and sends signal combination system 50 and advantageously comprises four channels, and their centre frequency is respectively f1, f2, f3 and f4.With described the same in conjunction with Fig. 2 embodiment, one of these channels and base station sends the signal processing path coupling.It will be understood by those skilled in the art that the channel that can use any fair amount.Each channel is imported a specific power amplifier 32, four power amplifiers 32 are arranged in illustrated embodiment.Be configured to the power amplifier 32 of f1 channel coupling, output signal sent to the first input end A of the first frequency-selecting signal combiner 34.Be configured to the power amplifier 32 of f2 channel coupling, output signal sent to the first input end A of the second frequency-selecting signal combiner 36.Be configured to the power amplifier 32 of f3 channel coupling, output signal sent to the second input B of the first frequency-selecting signal combiner 34.Be configured to the power amplifier 32 of f4 channel coupling, output signal sent to the second input B of the second frequency-selecting signal combiner 36.The first frequency-selecting signal combiner 34 is configured to, and will send to the transmission input of the first frequency-selecting duplexer 52 from the signal of output C.First duplexer 52 links to each other with first antenna 38.The second frequency-selecting signal combiner 36 is configured to, and will send to the transmission input of the second frequency-selecting duplexer 54 from the signal of output C.Second duplexer 54 links to each other with second antenna 40.Although it will be understood by those skilled in the art that in illustrated embodiment, in a sector of illustrative cdma base station, there are two antennas, in a sector, any amount of antenna can be arranged.First duplexer 52 is configured to, to send to first separator 56 from a signal that receives output, and first separator 56 advantageously is configured to, and respectively four output signals is sent to four receivers (not shown) that are used for four channel f1, f2, f3 and f4.Second duplexer 54 is configured to, and will send to second separator 58 from a signal that receives output, and second separator 58 is configured to advantageously, respectively four output signals is sent to four receivers that are used for four channel f1, f2, f3 and f4.

With described the same at Fig. 2 embodiment, power amplifier 32 and frequency-selecting signal combiner 34 and 36 be legacy device preferably.Duplexer 52 and 54 and the also preferably known traditionally parts of separator 56 and 58.

In operating process, advantageously, send on half channel that uses in this sector with each roots of two

antennas

38 and 40, and receive on all channels that use in this sector.Every

antenna

38,40 all links to each other with separately frequency-selecting duplexer 52,54, and the receiver (not shown) that the frequency-selecting duplexer will be separately with send Signal Spacing.In a certain embodiments, the front in separator 56 and 58 is placed first and second low noises respectively and is received information preamplifier (not shown).In another embodiment, the back in separator 56 and 58 is placed the first and second low noise received signal preamplifiers (not shown) respectively.

As shown in Figure 6, in a specific embodiment, duplexer and signal combiner can be combined into single assembly.In the embodiment of Fig. 6, dual diversity receives and sends signal combination system 60 and uses comprehensive duplexer/combiner 62 and 64.Combiner and duplexer are combined into the advantage that single assembly has minification.Owing to avoided the interconnection of the redundant frequency-selecting filter in the transmission signal path of frequency-selecting filter and duplexer in the combiner, so an attendant advantages is that the insertion loss is lower.

In the embodiment of Fig. 6, dual diversity receives and sends signal combination system 50 and advantageously comprises four channels, and their centre frequency is respectively f1, f2, f3 and f4.With described the same in conjunction with Fig. 2 embodiment, one of these channels and base station sends the signal processing path coupling.It will be understood by those skilled in the art that the channel that can use any fair amount.Each channel is imported a specific power amplifier 32, four power amplifiers 32 are arranged in illustrated embodiment.Be configured to the power amplifier 32 of f1 channel coupling, output signal sent to first of first comprehensive frequency-selecting signal duplexer/combiner 62 send input.Be configured to the power amplifier 32 of f2 channel coupling, output signal sent to first of second comprehensive frequency-selecting signal duplexer/combiner 64 send input.Be configured to the power amplifier 32 of f3 channel coupling, output signal sent to second of first comprehensive frequency-selecting signal duplexer/combiner 62 send input.Be configured to the power amplifier 32 of f4 channel coupling, output signal sent to second of second comprehensive frequency-selecting signal duplexer/combiner 64 send input.First comprehensive frequency-selecting signal duplexer/combiner 62 links to each other with first antenna 38.Second comprehensive frequency-selecting duplexer/combiner 64 links to each other with second antenna 40.Although it will be understood by those skilled in the art that in illustrated embodiment, in a sector of illustrative cdma base station, there are two antennas, in a sector, any amount of antenna can be arranged.First comprehensive frequency-selecting duplexer/combiner 62 is configured to, to send to first separator 56 from a signal that receives output, and first separator 56 advantageously is configured to, and respectively four output signals is sent to four receivers (not shown) that are used for four channel f1, f2, f3 and f4.Second comprehensive frequency-selecting duplexer/combiner 64 is configured to, to send to second separator 58 from a signal that receives output, and second separator 58 advantageously is configured to, and respectively four output signals is sent to four receivers that are used for four channel f1, f2, f3 and f4.

In a certain embodiments, the front in separator 56 and 58 is placed the first and second low noise received signal preamplifiers (not shown) respectively.In another embodiment, the back in separator 56 and 58 is placed the first and second low noise received signal preamplifiers (not shown) respectively.

With described the same at Fig. 2 embodiment, power amplifier 32 and separator 56 and 58 be legacy device preferably.Comprehensive frequency-selecting duplexer/combiner 62 and 64 parts that are also preferably known traditionally, that can obtain again.

Understand easily as those skilled in the art, channel spacing can with describe herein different.For example, the channel among IS-95A and the J-STD-008 does not need 1.25 MHz of being separated by; This just does traditionally like this.Shown in the curve among Fig. 7, when some channels were overlapping, independent frequency-selecting was closed and can't be produced gratifying result, because the frequency component of a channel can not only be isolated with another channel by selecting frequency.When obtainable frequency spectrum total amount is restricted, and when non-overlapped channel can be wasted some frequency spectrums, technology shown in Figure 7 is useful, in this technology, four channels 1.00MHz of being separated by, each channel is 1.25 MHz wide (for clarity sake, only marked the size of f1, and the interval between f1 and the f2).Utilize the system of Fig. 2 can obtain gratifying result.

Fig. 8 shows another routine overlapping channel.In this embodiment, use spread spectrum signal with two different bandwidths.Therefore, in same centre frequency, promptly send two spread spectrum signals on the frequency f 1 with different bandwidth.Utilize the system of Fig. 2, can merge the f1 signal and the f3 signal of broad, send it to first antenna 38 then, merge narrower f1 signal and f2 signal simultaneously, send it to second antenna 40 then.

In many embodiment described herein, the isolation between first and second antennas can be the result of physical separation between the antenna, perhaps can provide by antenna polarization.If provide isolation by polarization, can advantageously replace two antennas so with a antenna with two feeds, one of them feed be used for first the polarization, another feed be used for second the polarization, and first and second the polarization be quadrature or near quadrature.Can be to several different merging of orthogonal polarization, for example { horizontal polarization, perpendicular polarization }, { the 45 degree polarization of vertical left linear tilt, the 45 degree polarization of vertical-right linear tilt }, and { left-hand circular polarization, right-handed circular polarization }.Known in the artly how come diversity reception with two reception antennas with different polarization.

Therefore, preferred embodiment of the present invention has been described.But those of ordinary skill of the present invention should be appreciated that, does not break away from the spirit or scope of the present invention, can carry out various variations to embodiment described herein.Therefore, the present invention only is subjected to the restriction of following claims.

Claims

1. the sector of the cellular base stations in cdma system is characterized in that, comprising:

Many antennas, every antenna all are used for sending channel-group separately; With

A plurality of signal combiners, each signal combiner is coupled by corresponding in man-to-man principle and a described many antennas antenna, channel-group is so selected in each signal combiner and the coupling of corresponding one group of channel, makes that not have two channels in any one group of channel be adjacent.

2. sector as claimed in claim 1 is characterized in that, having a channel in the channel that is sent out at least is spread spectrum signal.

3. sector as claimed in claim 1 is characterized in that, having a channel in the channel that is sent out at least is the signal of abideing by TIA IS-95A standard.

4. sector as claimed in claim 1 is characterized in that, having a channel in the channel that is sent out at least is the signal of abideing by ANSI J-STD-008 standard.

5. sector as claimed in claim 1 is characterized in that, has at least an antenna to be used to transmit and receive both in the described many antennas.

6. base station in the cdma cellular telephone system, it is characterized in that, comprise at least one sector, described sector comprises a plurality of signal combiners, each signal combiner and an antenna coupling, in described a plurality of signal combiner each all is coupled with one group of corresponding channel, so selects channel-group, is adjacent so that do not have two channels in any one channel-group.

7. the sector of the cellular base stations in cdma system is characterized in that, comprising:

Be used to send the device of many group channels; With

Be used for indivedual channels are merged to the corresponding channel groups of many group channels, cause that not have two indivedual channels in any one group of channel are adjacent devices, described merging device is coupled with described dispensing device.

8. sector as claimed in claim 7 is characterized in that, having a channel in the channel that is sent out at least is spread spectrum signal.

9. sector as claimed in claim 7 is characterized in that, having a channel in the channel that is sent out at least is the signal of abideing by TIA IS-95A standard.

10. sector as claimed in claim 7 is characterized in that, having a channel in the channel that is sent out at least is the signal of abideing by ANSI J-STD-008 standard.

11. in cdma cellular formula telephone system, a kind of signaling method is characterized in that, may further comprise the steps:

Indivedual channels are merged into many group channels, make that it is adjacent not having two indivedual channels in any one group of channel; And

Send described channel-group.

12. method as claimed in claim 11 is characterized in that, having a channel in the channel that is sent out at least is spread spectrum signal.

13. method as claimed in claim 11 is characterized in that, having a channel in the channel that is sent out at least is the signal of abideing by TIA IS-95A standard.

14. method as claimed in claim 11 is characterized in that, having a channel in the channel that is sent out at least is the signal of abideing by ANSI J-STD-008 standard.

15. the sector of the cellular base stations in cdma system is characterized in that, comprising:

A plurality of signal combiners, each signal combiner and the coupling of a different set of channel, it is adjacent not having two channels in any one group of channel;

A plurality of duplexers, they are by corresponding signal combiner coupling in man-to-man principle and a plurality of signal combiner, a corresponding coupling in each in a plurality of duplexers and a plurality of signal combiner;

Many antennas, a corresponding coupling in every antenna and a plurality of duplexer; With

A plurality of separators, they are by corresponding duplexer coupling in man-to-man principle and a plurality of duplexer, a corresponding coupling in each in a plurality of separators and a plurality of duplexer.

16. sector as claimed in claim 15 is characterized in that, having a channel in the channel that is sent out at least is spread spectrum signal.

17. sector as claimed in claim 15 is characterized in that, having a channel in the channel that is sent out at least is the signal of abideing by TIA IS-95A standard.

18. sector as claimed in claim 15 is characterized in that, having a channel in the channel that is sent out at least is the signal of abideing by ANSI J-STD-008 standard.

19. the sector of the cellular base stations in cdma system is characterized in that, comprising:

A plurality of comprehensive duplexer/combiners, each comprehensive duplexer/combiner and the coupling of a different set of channel, it is adjacent not having two channels in any one group of channel;

Many antennas, a corresponding coupling in every antenna and a plurality of comprehensive duplexer/combiner; With

A plurality of separators, they are by corresponding comprehensive duplexer/combiner coupling in man-to-man principle and a plurality of comprehensive duplexer/combiner, a corresponding coupling in each in a plurality of separators and a plurality of comprehensive duplexer/separator.

20. sector as claimed in claim 19 is characterized in that, having a channel in the channel that is sent out at least is spread spectrum signal.

21. sector as claimed in claim 19 is characterized in that, having a channel in the channel that is sent out at least is the signal of abideing by TIA IS-95A standard.

22. sector as claimed in claim 19 is characterized in that, having a channel in the channel that is sent out at least is the signal of abideing by ANSI J-STD-008 standard.