CN101345931A - Antenna feeder sharing device, system and method - Google Patents

Abstract

The present invention discloses an antenna feeder sharing device, system and method. In the embodiment of the present invention, frequency selection units with different pass-band ranges are connected in series on the transmission paths of each signal, and the frequency selection unit is realized through filtering splitting or filtering combining. The base station shares the antenna feeder, so that the signals sent and received by each antenna feeder interface have less loss in the transmission process, and the common antenna feeder is realized without affecting the coverage of the base station.

Description

Antenna feeder sharing device, system and method

technical field

The present invention relates to the field of communication technologies, and in particular to an antenna feeder sharing device, system and method.

Background technique

In the wireless communication system, in order to improve the utilization efficiency of the antenna feeder and reduce the cost, usually multiple base stations share a set of antenna feeder system, so it is necessary to add antenna feeder sharing between the antenna feeder system and the antenna feeder interface of multiple base stations Unit, referred to as ASU (Antenna Sharing Unit). The ASU combines the transmission signals of multiple base stations, and then outputs them to the antenna feeder system, or separates the multiple signals received from the antenna feeder system, and sends them to the corresponding base station for processing.

The existing technology uses a 3dB bridge to realize a common antenna feeder. For example, the signal received by one antenna feeder is divided into two channels by the corresponding 3dB bridge, and sent to the transceiver interfaces of the two base stations respectively. The two base stations are connected by their respective transceiver interfaces. The transmitted signal is combined by a 3dB bridge and sent through the antenna feeder, so that the two transceiver interfaces share one antenna feeder. In the same way, if the two base stations that share the antenna feeder also have a diversity receiving interface, one more antenna feeder and 3dB bridge can be added to realize the diversity reception of the common antenna feeder.

The inventors have found that the existing technical solution has at least the following problems, the bridge has insertion loss to the receiving branch of the antenna feeder, which will greatly affect the coverage of the base station.

Contents of the invention

Embodiments of the present invention provide an antenna feeder sharing device, system, and method to implement common antenna feeders for base stations.

An embodiment of the present invention provides an antenna feeder sharing device, including:

A first frequency selection unit, a second frequency selection unit, a first communication terminal, a second communication terminal, and a third communication terminal;

The first frequency selection unit is connected in series between the first communication terminal and the second communication terminal, and is used to perform signal transmission between the first communication terminal and the second communication terminal according to the first passband range. filtering;

The second frequency selection unit is connected in series between the first communication terminal and the third communication terminal, and is used to perform signal transmission between the first communication terminal and the third communication terminal according to the second passband range. filtering;

The first communication terminal is used to connect to the antenna feeder, the second communication terminal is used to connect to the antenna feeder interface of the first base station, and the third communication terminal is used to connect to the antenna feeder interface of the second base station;

Wherein, the passband range of the frequency selection unit is determined according to the signal frequency transmitted by the antenna feeder interface of the base station connected to the corresponding communication terminal, and the passband ranges of the frequency selection units do not overlap with each other.

An embodiment of the present invention provides an antenna feeder sharing system, including:

The first base station, the second base station, the first day feeding sharing device and the second day feeding sharing device, the first day feeding, the second day feeding;

The second communication terminal of the first antenna sharing device is connected to the first antenna interface of the first base station;

The third communication terminal of the first antenna feeder sharing device is connected to the second day feeder interface of the second base station;

The first communication terminal of the first antenna sharing device is connected to the first antenna;

The second communication terminal of the second day feeder sharing device is connected to the first antenna feeder interface of the second base station;

The third communication terminal of the second-day feed sharing device is connected to the second-day feed interface of the first base station;

The first communication terminal of the second-day feed sharing device is connected to the second-day feed.

Embodiments of the present invention also provide an antenna feed sharing system, including:

The first base station, the second base station, the first feeder sharing device, the first feeder, and the second feeder;

The second communication terminal of the first antenna sharing device is connected to the first antenna interface of the first base station;

The third communication terminal of the first antenna feeder sharing device is connected to the second day feeder interface of the second base station;

The first communication terminal of the first antenna sharing device is connected to the first antenna;

The first feeder interface of the second base station is connected to the second feeder;

The receiving main set output interface of the second base station is connected to the second feeder interface of the first base station.

In the embodiment of the present invention, on the transmission path of each signal, the frequency selection units with different passband ranges are connected in series, and the common antenna feeder of the base station is realized through filter splitting or filter combining, so that the signals required to be sent and received by each antenna feeder interface In the transmission process, the loss is small, and the coverage of the base station is not affected while realizing the common antenna feed.

Description of drawings

FIG. 1 is a schematic diagram of an antenna feeder sharing device in Embodiment 2 of the present invention;

Fig. 2 is a schematic diagram of an antenna feeder sharing device in Embodiment 2 of the present invention;

Fig. 3 is a schematic diagram of an antenna feeder sharing device in Embodiment 3 of the present invention;

FIG. 4 is a schematic diagram of an antenna feeder sharing system in Embodiment 4 of the present invention;

FIG. 5 is a schematic diagram of an antenna feeder sharing system in Embodiment 5 of the present invention;

FIG. 6 is a schematic diagram of an antenna feeder sharing system in Embodiment 6 of the present invention;

FIG. 7 is a schematic diagram of an antenna feeder sharing system in Embodiment 7 of the present invention;

Fig. 8 is a schematic diagram of an antenna feeder sharing device in Embodiment 8 of the present invention;

FIG. 9 is a schematic diagram of an antenna feeder sharing system in Embodiment 9 of the present invention;

FIG. 10 is a schematic diagram of an antenna feeder sharing system in Embodiment 10 of the present invention.

Detailed ways

Embodiments of the present invention provide an antenna feeder sharing device, system, and method. In the embodiments of the present invention, frequency selection units with different passband ranges are connected in series on the transmission paths of each signal, and through filtering splitting or filtering combining The common antenna feeder is realized by the base station, so that the signals sent and received by each antenna feeder interface have less loss in the transmission process, and the common antenna feeder is realized without affecting the coverage of the base station. In order to make the technical solutions and advantages of the present invention clearer, the embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings.

Embodiment 2 of the present invention relates to an antenna feeder sharing device, as shown in FIG. 1 :

The antenna feeder sharing device 100 in Embodiment 1 includes:

A first frequency selection unit 111, a second frequency selection unit 112, a first communication terminal 101, a second communication terminal 102, and a third communication terminal 103;

The first frequency selection unit 111 is connected in series between the first communication terminal 101 and the second communication terminal 102, and is used to control the communication between the first communication terminal 101 and the second communication terminal 102 according to the first passband range. Filter the signal transmitted between;

The second frequency selection unit 112 is connected in series between the first communication terminal 101 and the third communication terminal 103, and is used to control the communication between the first communication terminal 101 and the third communication terminal 103 according to the second passband range. Filter the signal transmitted between;

The first communication terminal 101 is used to connect to the antenna feeder, the second communication terminal 102 is used to connect to the antenna feeder interface of the first base station, and the third communication terminal 103 is used to connect to the antenna feeder interface of the second base station;

Wherein, the passband ranges of the above-mentioned frequency selection units are determined according to the signal frequency transmitted by the antenna feeder interface of the base station connected to the corresponding communication terminal, and the passband ranges of the frequency selection units do not overlap with each other. Such a setting can make each frequency selection unit have a strong degree of suppression to signals outside its own passband range, so as to prevent the signals outside its own passband range from passing through, while the insertion loss of signals within its own passband range is very low. Small, so that the signal within its own passband range passes through, and the loss is small

For example, the frequency range of the signal received by the antenna feeder interface of the first base station connected to the second communication terminal 102 is A (for the sake of simplicity, letters are used to replace the specific frequency range in the embodiment, and different letters represent different frequency ranges), then Correspondingly set the first passband range of the first frequency selection unit 111 connected to the second communication terminal 102, so that it contains A (even if the signal with a frequency range of A can pass), the signal to be received by the antenna feeder interface of the first base station like this The antenna feeder can be transmitted to the antenna feeder interface of the first base station through the first communication terminal 101 through the first frequency selection unit 111 and the second communication terminal 102; if the antenna feeder interface of the second base station connected to the third communication terminal 103 receives If the range of the signal is B, then the second passband range of the second frequency selection unit 113 connected to the third communication terminal 103 can be set accordingly to include B, so that the signal to be received by the antenna feeder interface of the second base station can be received by the antenna The feed is transmitted to the antenna feeder interface of the second base station via the first communication terminal 101 through the second frequency selection unit 113 and the third communication terminal 103, and the above-mentioned first passband range and second channel range do not overlap each other.

Each of the above frequency selection units may be a filter or a notch filter.

The antenna sharing device in Embodiment 1 of the present invention can be used in the scene where two antenna receiving interfaces share one antenna. By connecting frequency selection units with different passband The common antenna feeder is realized by the base station, so that the signal to be received by each antenna feeder interface has less loss in the transmission process.

Embodiment 2 of the present invention relates to an antenna feeder sharing device, as shown in FIG. 2 :

The antenna feeder sharing device 200 in Embodiment 2 includes:

The first frequency selection unit 211, the second frequency selection unit 213, the third frequency selection unit 212, the first communication terminal 201, the second communication terminal 202, and the third communication terminal 203;

The first frequency selection unit 211 is connected in series between the first communication terminal 201 and the second communication terminal 202, and is used to control the communication between the first communication terminal 201 and the second communication terminal 202 according to the first passband range. Filter the signal transmitted between;

The third frequency selection unit 212 is connected in series between the first communication terminal 201 and the second communication terminal 202, and is connected in parallel with the first frequency selection unit 211, and is used for pairing the frequency according to the third passband range. filtering the signal transmitted between the first communication terminal 201 and the second communication terminal 202;

The second frequency selection unit 213 is serially connected between the first communication terminal 201 and the third communication terminal 203, and is used to control the communication between the first communication terminal 201 and the third communication terminal 203 according to the second passband range. Filter the signal transmitted between;

The first communication terminal 201 is used to connect to the antenna feeder, the second communication terminal 202 is used to connect to the antenna feeder interface of the first base station, and the third communication terminal 203 is used to connect to the antenna feeder interface of the second base station.

The passband ranges of the above-mentioned frequency selection units are determined according to the signal frequency transmitted by the antenna feeder interface of the base station connected to the corresponding communication terminal, and the passband ranges of the frequency selection units do not overlap with each other, so that each frequency selection unit is within its own passband range The signal outside the passband has a strong degree of suppression to prevent the signal outside its own passband range from passing through, while the insertion loss for the signal within its own passband range is very small, so that the signal within its own passband range can pass through without loss smaller.

For example, the frequency range of the signal sent by the antenna feeder interface of the first base station connected to the second communication terminal 202 is A (for simplicity, letters are used instead of specific frequency ranges in the embodiment, and different letters represent different frequency ranges), The frequency range of the signal received by the antenna feeder interface is B, and then the first passband range of the first frequency selection unit 211 connected to the second communication terminal 202 is correspondingly set so that it includes A (even if the signal in the frequency range A can pass through ), the signal sent by the antenna feeder interface of the first base station can be sent to the antenna feeder via the first communication terminal 201 through the first frequency selection unit 211; similarly, the third frequency selection unit 212 connected to the second communication terminal 202 can be set The third passband range, so that it includes B, so that the signal to be received by the antenna feeder interface of the first base station can be transmitted to the second communication terminal 201 through the antenna feeder through the third frequency selection unit 212 and the second communication terminal 202. Antenna feeder interface of a base station; if the scope of receiving signals of the antenna feeder interface of the second base station connected by the third communication terminal 203 is C, the second frequency selection unit 213 of the second frequency selection unit 213 connected to the third communication terminal 203 can be set accordingly The passband range includes C, so that the signal to be received by the antenna feeder interface of the second base station can be transmitted from the antenna feeder to the second base station through the first communication terminal 201 through the second frequency selection unit 213 and the third communication terminal 203 For the antenna feeder interface, the range of the first passband, the range of the second channel, and the range of the third channel do not overlap with each other.

Each of the above frequency selection units may be a filter or a notch filter.

The antenna sharing device according to Embodiment 2 of the present invention can be used in the scene of one antenna receiving and receiving interface and one antenna receiving interface, by connecting frequency selection units with different passband ranges in series on the transmission path of each signal, and filtering The splitting or filtering combination realizes the common antenna feed of the base station, so that the signals required to be sent and received by each antenna feeder interface have less loss in the transmission process.

Embodiment 3 of the present invention relates to an antenna feeder sharing device, as shown in FIG. 3 :

The antenna feeder sharing device 300 in Embodiment 3 includes:

The first frequency selection unit 311, the second frequency selection unit 313, the third frequency selection unit 312, the fourth frequency selection unit 314, the first communication terminal 301, the second communication terminal 302, and the third communication terminal 303; Embodiment 3 The structure of the antenna sharing device 300 is similar to that of the antenna sharing device 200 in the second embodiment, the difference is that a fourth frequency selection unit 314 is added, and the fourth frequency selection unit 314 is serially connected to the first communication terminal 301 Between the third communication terminal 303 and in parallel with the second frequency selection unit 313 , used to filter the signal transmitted between the first communication terminal and the third communication terminal according to the fourth passband range.

The passband ranges of the above-mentioned frequency selection units are set according to the antenna feeder interface of the base station connected to the corresponding communication terminal, and the passband ranges of the frequency selection units do not overlap each other, so that each frequency selection device has a certain effect on signals outside its own passband range. Strong suppression to prevent signals outside its own passband range from passing through, and the insertion loss for signals within its own passband range is very small, so as to allow signals within its own passband range to pass through with less loss.

For example, the frequency setting of the antenna interface of the base station is as follows: the frequency range of the signal sent by the antenna interface of the first base station is A, the frequency range of the signal received by the antenna interface of the first base station is B; the frequency range of the signal sent by the antenna interface of the second base station is B; The frequency range of the signal is C, and the frequency range of the signal received by the antenna feeder interface of the second base station is D. According to the settings of the antenna feeder interface of the base station connected to the second communication terminal and the third communication terminal, the passband of each corresponding frequency selection unit The range can be set as follows: the first passband range of the first frequency selection unit 311 can be set to include A, the third passband range of the third frequency selection unit 312 can be set to include the second passband of the second frequency selection unit 313 The band range may be set to include C, and the fourth passband range of the fourth frequency selection unit 314 may be set to include D.

Each of the above frequency selection units may be a filter or a notch filter.

The antenna feeder sharing device 300 in the third embodiment of the present invention is improved on the basis of the second embodiment, and can be applied to the case where the two antenna feeder interfaces connected to its communication port are common transceiver interfaces. On the transmission path of each signal, the frequency selection units with different passband ranges are connected in series, and the common antenna feed of the base station is realized through filter splitting and filter combining, so that the signals required for each antenna feeder interface to be transmitted and received are lost during transmission. smaller.

Embodiment 4 of the present invention relates to an antenna feeder sharing system, as shown in FIG. 4 :

Including the first base station 421, the second base station 422, the first antenna sharing device 411 as described in the second embodiment, the second day feeding sharing device 412 as described in the second embodiment, the first antenna 401, the second day Feed 402;

The second communication terminal of the first antenna sharing device 411 is connected to the first antenna interface of the first base station 421;

The third communication terminal of the first antenna sharing device 411 is connected to the second antenna interface of the second base station 422;

The first communication terminal of the first feeder sharing device 411 is connected to the first feeder 401;

The second communication terminal of the second day feed sharing device 412 is connected to the first feed interface of the second base station 422;

The third communication terminal of the second-day feed sharing device 412 is connected to the second-day feed interface of the first base station 421;

The first communication terminal of the next day feed sharing device 412 is connected to the next day feed 402 .

Wherein, the first antenna feeder interface of the first base station 421 in this embodiment is an RXM/TX (main receiver/transmitter) antenna feeder interface, the frequency range of which sends signals is A, and the frequency range of received signals is B. The second day feeder interface of a base station 421 is an RXD (diversity receiving antenna feeder interface) antenna feeder interface, and the frequency range of its received signal is B; the first antenna feeder interface of the second base station 422 is an RXM/TX antenna feeder interface, and its The frequency range of the transmitted signal is C, and the frequency range of the received signal is D. The second feeder interface of the second base station 422 is an RXD antenna feeder interface, and the frequency range of the received signal is D.

According to the above-mentioned settings of the antenna feeder interface of the base station connected to the second communication terminal and the third communication terminal of the first antenna sharing device 411 and the second day feeding sharing device 412, the passband range of each corresponding frequency selection unit can be set as follows: The passband ranges of the three frequency selection units of the first antenna feed sharing device 411 shown in Figure 4 can be set from left to right as follows: the first passband range of the first frequency selection unit includes A, the third frequency selection The third passband range of the unit includes B, the third passband range of the second frequency selection unit includes D, and these three passband ranges do not overlap each other; The passband range can be set respectively from left to right as follows: the first passband range of the first frequency selection unit includes C, the third passband range of the third frequency selection unit includes D, and the second passband range of the second frequency selection unit Range includes B, and the three passband ranges are non-overlapping.

After the above settings, the working principle of the system is as follows:

Suppose the signal transmitted by the RXM/TX antenna feeder interface of the first base station 421 is t1, the received signal is r1, and the signal received by the RXD antenna feeder interface is r1'; the signal transmitted by the RXM/TX antenna feeder interface of the second base station 422 is t2, the received signal is r2, and the signal received by the RXD antenna feeder interface is r2';

t1 is sent to the first antenna 401 through the second communication terminal, the first frequency selection unit and the first communication terminal of the first antenna sharing device 411, because the third frequency selection unit of the first antenna sharing device 411, the second The frequency selection unit has a strong suppression of t1, so that it will not cause t1 shunt, and the insertion loss of t1 from the first base station RXM/TX antenna feeder interface to the first antenna feeder 401 is almost equal to the first antenna feeder The insertion loss of the first frequency selection unit of the sharing device 411 .

The next day feed 402 sends the received signal to the first communication terminal of the next day feed sharing device 412, and the second frequency selection unit of the next day feed sharing device 412 filters the signal to obtain r1', which is passed through the second The third communication terminal of the antenna sharing device 412 sends to the RXD antenna interface of the first base station, because the first frequency selection unit and the third frequency selection unit of the second day feed sharing device 412 have a strong suppression of r1' , so that r1' will not be split, and the insertion loss of r1' from the second day feeder 402 to the first base station RXD antenna feeder interface is almost equal to the insertion loss of the second frequency selection unit of the second day feeder sharing device 412 damage.

The next day feed 402 sends the received signal to the first communication terminal of the next day feed sharing device 412, and the second frequency selection unit of the next day feed sharing device 412 filters the signal to obtain r1', which is passed through the second The third communication terminal of the antenna sharing device 412 sends to the RXD antenna interface of the first base station, because the first frequency selection unit and the third frequency selection unit of the second day feed sharing device 412 have a strong suppression of r1' , so that r1' will not be split, and the insertion loss of r1' from the second day feeder 402 to the first base station RXD antenna feeder interface is almost equal to the insertion loss of the second frequency selection unit of the second day feeder sharing device 412 damage. The antenna feeder sharing system in this embodiment processes t2, r2, r2' in a similar manner to the above-mentioned t1, r1, r1', and will not be repeated here.

The above-mentioned first-day feed sharing device 411 and second-day feed sharing device 412 may be implemented in one entity.

The antenna feeder sharing system according to Embodiment 4 of the present invention realizes the common antenna feeder of the base station by connecting the frequency selection unit with the corresponding passband range in series on the transmission path of each signal, and realizes the common antenna feeder of the base station through filter branching or filter combining. The loss is only equivalent to the insertion loss of the passing frequency selection unit, so the signal loss is small, which improves the coverage of the base station, and because the antenna feeder sharing device used has no passive components, the base station does not need to provide power, reducing the impact on the base station. requirements.

Embodiment 5 of the present invention relates to an antenna feeder sharing system, as shown in FIG. 5 :

Including the first base station 521, the second base station 522, the first antenna sharing device 511 as described in the second embodiment, the second day feeding sharing device 512 as described in the third embodiment, the first antenna 501, the second day Feed 502;

The second communication terminal of the first antenna sharing device 511 is connected to the first antenna interface of the first base station 521;

The third communication terminal of the first antenna sharing device 511 is connected to the second antenna interface of the second base station 522;

The first communication terminal of the first feeder sharing device 511 is connected to the first feeder 501;

The second communication terminal of the second day feed sharing device 512 is connected to the first feed interface of the second base station 522;

The third communication terminal of the second-day feed sharing device 512 is connected to the second-day feed interface of the first base station 521;

The first communication terminal of the next day feed sharing device 512 is connected to the next day feed 502 .

Embodiment 5 is similar to the antenna feeder sharing system of Embodiment 4, except that the first base station 521 is a dual-transmission and dual-reception base station, that is, its first antenna feeder interface is RXM/TX1 antenna feeder interface, and its second antenna feeder interface is The interface is RXD/TX2 antenna feeder interface, where TX1 is the first transmission channel and TX2 is the second transmission channel. TX1 and TX2 can transmit different carrier frequencies, or transmit the same carrier frequency to achieve transmit diversity. According to the change of the base station in the above-mentioned antenna feed sharing system, the second-day feed sharing device 512 described in the third embodiment is correspondingly used to replace the second-day feed sharing device in the fourth embodiment.

According to the method described in Embodiment 4, according to the frequency ranges of the antenna feeder interfaces of the first base station 521 and the second base station 522, each frequency selection unit in the first antenna feeder sharing device 511 and the second day feeder sharing device 512 The passband range is set.

The working principle of the antenna feeder sharing system in the fifth embodiment is similar to that in the fourth embodiment, and will not be repeated here.

The antenna feeder sharing system according to the fifth embodiment of the present invention realizes the common antenna feeder of the base station by connecting the frequency selection unit of the corresponding passband range in series on the transmission path of each signal, and realizes the common antenna feeder of the base station through filter branching or filter combining, so that each antenna feeder interface The signal to be sent and received is less lost during the transmission process, and since the frequency selection unit used is a passive device, the base station does not need to supply power to it, which not only reduces the cable connection, but also reduces the requirements for the base station.

Embodiment 6 of the present invention relates to an antenna feeder sharing system, as shown in FIG. 6:

Including the first base station 621, the second base station 622, the first antenna sharing device 611 as described in the third embodiment, the second day feeding sharing device 612 as described in the third embodiment, the first antenna 601, the second day Feed 602;

The second communication terminal of the first antenna sharing device 611 is connected to the first antenna interface of the first base station 621;

The third communication terminal of the first antenna sharing device 611 is connected to the second antenna interface of the second base station 622;

The first communication terminal of the first feeder sharing device 611 is connected to the first feeder 601;

The second communication terminal of the second day feed sharing device 612 is connected to the first antenna feed interface of the second base station 622;

The third communication terminal of the second-day feed sharing device 612 is connected to the second-day feed interface of the first base station 621;

The first communication terminal of the next day feed sharing device 612 is connected to the next day feed 602 .

Embodiment 6 is similar to the antenna feeder sharing system of Embodiment 4, except that: the first base station 621 and the second base station 622 are dual-transmission and dual-reception base stations, that is, the first antenna feeder interface of the base station is RXM/TX1 antenna feeder Interface, the second feeder interface is RXD/TX2 antenna feeder interface, where TX1 is the first transmission channel, TX2 is the second transmission channel, TX1 and TX2 can transmit different carrier frequencies, or can be realized by transmitting the same carrier frequency Launch diversity. According to the change of the base station in the above-mentioned antenna sharing system, the first antenna sharing device 611 as described in Embodiment 3 is used instead of the first antenna sharing device 611 in Embodiment 4, and the first antenna sharing device 611 as described in Embodiment 3 is adopted. The second antenna sharing device 612 replaces the first antenna sharing device in the fourth embodiment. According to the method described in Embodiment 4, according to the frequency ranges of the antenna feeder interfaces of the first base station 621 and the second base station 622, each frequency selection unit in the first antenna feeder sharing device 611 and the second day feeder sharing device 612 The passband range is set.

The working principle of the antenna feeder sharing system in the sixth embodiment is similar to that in the fourth embodiment, and will not be repeated here.

The antenna feeder sharing system according to the sixth embodiment of the present invention realizes the common antenna feeder of the base station by connecting the frequency selection unit with the corresponding passband range in series on the transmission path of each signal, and realizes the common antenna feeder of the base station through filter branching and filter combining, so that each antenna feeder interface The signals to be sent and received are less lost during the transmission process, so that the common antenna feed of the base station is realized, and because the frequency selection unit used is a passive device, there is no need for the base station to supply power to it, which not only reduces the cable connection, The requirements on the base station are also reduced.

Embodiment 7 of the present invention relates to an antenna feeder sharing system, as shown in FIG. 7 :

The first base station 721, the second base station 722, the first antenna sharing device 711, the first antenna 701, and the second antenna 702 as described in the second or third embodiment;

The second communication terminal of the first antenna sharing device 711 is connected to the first antenna interface of the first base station 721;

The third communication terminal of the first antenna sharing device 711 is connected to the second antenna interface of the second base station 722;

The first communication terminal of the first feeder sharing device 711 is connected to the first feeder 701;

The first day feeder interface of the second base station 722 is connected to the second day feeder;

The receiving main set output interface of the second base station 722 is connected to the second feeding interface of the first base station 721 .

Among them, the first antenna feeder interface of the first base station 721 in this embodiment is an RXM/TX antenna feeder interface, and the frequency range of the transmitted signal is A, and the frequency range of the received signal is B. The second day of the first base station 721 The feeder interface is the RXD antenna feeder interface, and the frequency range of the received signal is B; the first antenna feeder interface of the second base station 722 is the RXM/TX antenna feeder interface, and the frequency range of the transmitted signal is C, and the frequency range of the received signal is is D, the second feeder interface of the second base station 722 is an RXD antenna feeder interface, and the frequency range of its received signal is D, and the second base station 722 also has an MRO interface (receive master output interface) for the second The base station 722 outputs the signal received by the second base station 702. The signal includes the diversity reception signal required by the RXD antenna feeder interface of the first base station 721. According to the internal configuration of the base station, the MRO of the second base station 722 can also An amplifier or attenuator 731 is connected in series between the interface and the second feeder interface of the first base station 721 to play the role of signal gain adaptation.

According to the above settings of the antenna feeder interface of the base station connected to the second communication terminal and the third communication terminal of the first antenna sharing device 711, the passband range of each corresponding frequency selection unit can be set as follows: the first The passband ranges of the three frequency selection units of the antenna feeder sharing device 711 can be set from left to right as follows: the first passband range of the first frequency selection unit includes A, and the third passband range of the third frequency selection unit includes B. The second passband range of the second frequency selection unit includes D, and these three passband ranges do not overlap each other.

After the above settings, the working principle of the system is as follows:

Suppose the signal transmitted by the RXM/TX antenna feeder interface of the first base station 721 is t1, the received signal is r1, and the signal received by the RXD antenna feeder interface is r1'; the signal transmitted by the RXM/TX antenna feeder interface of the second base station 722 is t2, the received signal is r2, and the signal received by the RXD antenna feeder interface is r2'.

t1 is sent to the first antenna 701 through the second communication terminal, the first frequency selection unit and the first communication terminal of the first antenna sharing device 711, because the third frequency selection unit of the first antenna sharing device 711, the second The frequency selection unit has a strong suppression of t1, so that t1 will not be shunted, and the insertion loss of t1 from the first base station RXM/TX antenna feeder interface to the first antenna feeder 701 is almost equal to the first antenna feeder The insertion loss of the first frequency selection unit of the sharing device 711 .

The first antenna 701 sends the received signal to the first communication terminal of the first antenna sharing device 711, and the second frequency selection unit of the first antenna sharing device 711 filters the signal to obtain r2', which is passed through the first The third communication terminal of the antenna sharing device 711 sends to the RXD antenna interface of the second base station 722, because the first frequency selection unit and the third frequency selection unit of the first antenna sharing device 711 have a strong suppression of r2' In this way, r2' will not be shunted, and the insertion loss of r2' from the first antenna feeder 701 to the RXD antenna feeder interface of the second base station 722 is almost equal to the second frequency selection of the first antenna feeder sharing device 711 Unit insertion loss.

The first day feeder 701 sends the received signal to the first communication terminal of the first day feed sharing device 711, and the third frequency selection unit of the first day feed sharing device 711 filters the signal to obtain r1, through the first day The second communication terminal of the feeder sharing device 711 sends to the RXM/TX antenna feeder interface of the first base station 721, because the first frequency selection unit and the second frequency selection unit of the first antenna feeder sharing device 711 have a strong suppression of r1 In this way, r1 will not be shunted, and the insertion loss of r1 from the first antenna 701 to the RXM/TX antenna interface of the first base station 721 is almost equal to the third frequency selection of the first antenna sharing device 711 Unit insertion loss.

The second day feeder 702 transmits the received signal (including r1', r2) to the RXM/TX antenna feeder interface of the second base station 722, and the filter inside the second base station 722 transmits the signal received by the RXM/TX antenna feeder interface The r2 in is extracted and used as the main set reception, and the signal received by the feeder 702 on the second day is output to the RXD interface of the first base station 721 through the MRO interface, and the filter inside the first base station 721 converts the signal received by the RXD interface The r1' in is extracted and used for diversity reception. t2 is sent directly through the second day feeder 702 connected to the RXM/TX antenna feeder interface of the second base station 722 .

Of course, different antenna sharing devices can also be configured according to the type of base station interface. For example, when the second feeder interface of the second base station is a sending and receiving shared interface, the first antenna sharing device 711 can adopt the antenna as described in the third embodiment. Feed sharing device.

Embodiment 7 of the present invention uses an antenna feeder sharing device to realize base station sharing antenna feeder, further saving system cost.

Embodiment 8 of the present invention relates to an antenna feeder sharing device, as shown in FIG. 8:

The antenna feeder sharing device 800 in Embodiment 8 includes:

The first frequency selection unit 811, the second frequency selection unit 813, the third frequency selection unit 812, the fourth frequency selection unit 814, the fifth frequency selection unit 815, the sixth frequency selection unit 816, the first communication terminal 801, the second The communication terminal 802, the third communication terminal 803, the fourth communication terminal 804, the first frequency selection unit 811, and the third frequency selection unit 812 are connected in parallel between the first communication terminal 801 and the second communication terminal 802, and the second frequency selection unit 813, the fourth frequency selection unit 814 is connected in parallel between the first communication terminal 801 and the third communication terminal 803, the fifth frequency selection unit 815, and the sixth frequency selection unit 816 are connected in parallel to the first communication terminal 801, and the fourth communication terminal 804 between.

Compared with Embodiments 1 to 3, the difference of Embodiment 8 lies in the addition of a fourth communication terminal and the corresponding frequency selection unit. In the embodiment of the present invention, the antenna feeder can be shared by adding the communication terminal and the frequency selection unit. The device is suitable for the situation where 3 or more base stations share the antenna feeder. The number of frequency selection units and the passband range corresponding to each port can be set according to the antenna feeder interface of the specific connected base station. The specific principles and embodiments 1 to 3 are similar and will not be repeated here.

Embodiment 9 of the present invention relates to an antenna feeder sharing system, as shown in FIG. 9 :

Including the first base station 921, the second base station 922, the third base station 923, the first antenna sharing device 911 as described in the eighth embodiment, the second antenna sharing device 912 and the first antenna sharing device as described in the eighth embodiment 901, 902 the next day;

The second communication terminal of the first antenna sharing device 911 is connected to the first antenna interface of the first base station 921;

The third communication terminal of the first antenna sharing device 911 is connected to the second antenna interface of the second base station 922;

The fourth communication terminal of the first antenna sharing device 911 is connected to the second antenna interface of the third base station 923;

The first communication terminal of the first feeder sharing device 911 is connected to the first feeder 901;

The second communication terminal of the second day feed sharing device 912 is connected to the first antenna feed interface of the second base station 922;

The third communication terminal of the second-day feed sharing device 912 is connected to the second-day feed interface of the first base station 921;

The fourth communication terminal of the second-day feed sharing device 912 is connected to the second-day feed interface of the third base station 923;

The first communication terminal of the next day feed sharing device 912 is connected to the next day feed 902 .

The first base station 921, the second base station 922, and the third base station 923 are dual-transmission and dual-reception base stations, that is, the first antenna interface of the base station is the RXM/TX1 antenna interface, and the second antenna interface is the RXD/TX2 antenna interface. , where TX1 is the first transmission channel, and TX2 is the second transmission channel. TX1 and TX2 can transmit different carrier frequencies, or transmit the same carrier frequency to achieve transmit diversity. Of course, the antenna feeder interface of the base station can also be configured in other ways. It is only necessary to change the configuration of the antenna feeder sharing device accordingly.

The working principle of the antenna feeder sharing system in Embodiment 9 is similar to Embodiments 4, 5, and 6, and will not be repeated here.

Embodiment 9 of the present invention can increase the number of base stations in the antenna sharing system to 3 or more by adding the communication terminal and the frequency selection unit of the antenna sharing device, further saving antenna resources and reducing system costs.

Embodiment 10 of the present invention relates to an antenna feeder sharing system, as shown in FIG. 10 , including:

The first base station 1021, the second base station 1022, the first antenna sharing device 1011 as described in the third embodiment, the second-day feeding sharing device 1022, the first antenna 1001, and the second-day feeding sharing device as described in the first embodiment 1002;

The second communication terminal of the first antenna sharing device 1011 is connected to the first antenna interface (RXM/TX) of the first base station 1021;

The third communication terminal of the first antenna sharing device 1011 is connected to the second antenna interface (RXM/TX) of the second base station 1022;

The first communication terminal of the first feeder sharing device 1011 is connected to the first feeder 1001;

The third communication terminal of the second-day feed sharing device 1012 is connected to the second-day feed interface (RXD) of the first base station 1021;

The second communication terminal of the second day feed sharing device 1012 is connected to the first feed interface (RXD) of the second base station 1022;

The first communication terminal of the next day feed sharing device 1012 is connected to the next day feed 1002 .

Embodiment 10 is similar to the antenna feeder sharing system of Embodiment 4. It is also shared by two single-transmission and dual-reception base stations. device. The first antenna feeder sharing device 1011 implements the first antenna feeder interface of the first base station 1021 and the second antenna feeder interface of the second base station 1022 (in this embodiment, both are common transceiver interfaces) to share the first antenna feeder interface through filter combination and filter branching. One-day feeding 1001; second-day feeding sharing device 1012 realizes the second-day feeding interface of the first base station 1021 and the first-day feeding interface of the second base station 1022 (both are receiving interfaces in this embodiment) to share the second-day feeding interface by filtering and splitting the second day. For the second-day feeder 1002, since other settings and working principles are similar to those of the above-mentioned embodiment, details are not repeated here.

Embodiment 11 of the present invention relates to an antenna feeder sharing method, including:

Receive the first signal from the antenna feeder;

performing filtering processing on the first signal according to the first passband range and the second passband range respectively, to form a second signal and a third signal;

sending said second signal to a first base station, and sending said third signal to a second base station;

Wherein, the passband range is determined according to the signal frequency received by the corresponding base station, and the ranges of the channels do not overlap with each other.

The above method is suitable for the situation where two base stations receive signals by sharing one antenna feeder. Wherein, the first signal is an uplink signal received by the antenna feeder, and after filtering it according to two non-overlapping passband ranges, the second signal and the third signal (that is, the first base station and the second base station) are separated from it. required uplink signal), and respectively send the second signal and the third signal to corresponding base stations for processing, and the passband ranges are respectively determined according to the frequency ranges of signals received by the two base stations. When there are N base stations that need to share one antenna feeder to receive signals, at least N non-overlapping passband ranges need to be used to filter the first signal received by the antenna feeder to separate the signals that each base station needs to receive .

When the two base stations share a common antenna to receive signals, and there is another base station that needs to use the antenna to send a downlink signal (such as the fourth signal), the method may also include:

receiving a fourth signal from the first base station, and filtering the fourth signal according to a third passband range;

sending the filtered fourth signal to an antenna feeder;

Wherein, the third passband range is determined according to the signal frequency sent by the first base station, and the third passband range does not overlap with other passband ranges.

When two of the base station ports that share the antenna feeder both need to send signals, it also includes:

receiving a fourth signal from the first base station and a fifth signal from the second base station, and performing filter processing on the fourth signal and the fifth signal according to the third passband range and the fourth passband range;

combining the filtered fourth and fifth signals;

sending the combined filtered fourth signal and fifth signal to an antenna feeder;

Wherein, the third passband range and the fourth passband range are determined according to the frequency of the signal sent by the corresponding base station, and the third passband range, the fourth passband range and other said channel ranges do not overlap with each other.

When filtering, the signal suppression degree outside the passband range is very strong to prevent the signal outside the passband range from passing through, while the insertion loss of the signal within the passband range is very small so that it falls into the passband range The signal in the pass through, and the loss is small. The antenna feeder sharing method of Embodiment 11 of the present invention uses different passband ranges to filter different signals, and realizes the common antenna feeder of base stations through filter combination or filter splitting, so that the signals required to be transmitted and received by each base station are The loss in the transmission process is small, and while saving the cost of the antenna feeder system, it will not affect the coverage effect of the base station.

The base stations described in the above embodiments may refer to base stations in a logical sense. For example, in the case where base stations of different systems share an antenna feeder, the first base station represents a UMTS base station, and the second base station represents a GSM base station. It can also only refer to the transceiver part of the base station sector. For example, in the base station of the same system, the carrier frequency is increased to achieve expansion. At this time, the first base station and the second base station only represent the two transceivers of the same sector in the same base station. Each transceiver part can be located in one cabinet or in different cabinets. Each transceiver part can have a common transceiver antenna feeder interface, or have a common transceiver antenna feeder interface and a diversity receiving antenna feeder interface, or have two or more common transceiver antenna feeder interfaces, or have other customized interfaces, etc. Different antenna feed sharing devices provided by the above implementation can be selected according to specific interface types and configurations to implement a common antenna feed system.

Through the above description of the embodiments, those skilled in the art can clearly understand that the present invention can be realized by hardware, or by software plus a necessary general hardware platform. Based on this understanding, the technical solution of the present invention can be embodied in the form of software products, which can be stored in a non-volatile storage medium (which can be CD-ROM, U disk, mobile hard disk, etc.), including several The instructions are used to make a computer device (which may be a personal computer, a server, or a network device, etc.) execute the methods described in various embodiments of the present invention.

The above disclosures are only a few specific embodiments of the present invention, however, the present invention is not limited thereto, and any changes conceivable by those skilled in the art shall fall within the protection scope of the present invention.

Claims (10)

1. An antenna feeder sharing device, comprising: A first frequency selection unit, a second frequency selection unit, a first communication terminal, a second communication terminal, and a third communication terminal; The first frequency selection unit is connected in series between the first communication terminal and the second communication terminal, and is used to perform signal transmission between the first communication terminal and the second communication terminal according to the first passband range. filtering; The second frequency selection unit is connected in series between the first communication terminal and the third communication terminal, and is used to perform signal transmission between the first communication terminal and the third communication terminal according to the second passband range. filtering; The first communication terminal is used to connect to the antenna feeder, the second communication terminal is used to connect to the antenna feeder interface of the first base station, and the third communication terminal is used to connect to the antenna feeder interface of the second base station; Wherein, the passband range of the frequency selection unit is determined according to the signal frequency transmitted by the antenna feeder interface of the base station connected to the corresponding communication terminal, and the passband ranges of the frequency selection units do not overlap with each other. 2. The device according to claim 1, further comprising a third frequency selection unit: The third frequency selection unit is connected in series between the first communication terminal and the second communication terminal, and is connected in parallel with the first frequency selection unit, and is used to select the first communication terminal according to the third passband range. filtering the signal transmitted between the second communication terminal; The third passband range of the third frequency selection unit is determined according to the signal frequency transmitted by the antenna feeder interface of the base station connected to the corresponding communication terminal, and the third passband range does not overlap with other said passband ranges. 3. The device according to claim 2, further comprising a fourth frequency selection unit, The fourth frequency selection unit is connected in series between the first communication terminal and the third communication terminal, and is connected in parallel with the second frequency selection unit, and is used to control the first communication terminal according to the fourth passband range. Filtering the signal transmitted between the third communication terminal; The fourth passband range of the fourth frequency selection unit is determined according to the signal frequency transmitted by the antenna feeder interface of the base station connected to the corresponding communication terminal, and the fourth passband range does not overlap with the other passband ranges. 4. The device according to claim 1 or 3, characterized in that: The frequency selection unit is a filter or a notch filter. 5. An antenna feeder sharing system, characterized in that it comprises: The first base station, the second base station, the first antenna sharing device as described in any one of claims 1 to 4 and the second day feeding sharing device as described in any one of claims 1 to 4, the first antenna sharing device , Feed the next day; The second communication terminal of the first antenna sharing device is connected to the first antenna interface of the first base station; The third communication terminal of the first antenna feeder sharing device is connected to the second day feeder interface of the second base station; The first communication terminal of the first antenna sharing device is connected to the first antenna; The second communication terminal of the second day feeder sharing device is connected to the first antenna feeder interface of the second base station; The third communication terminal of the second-day feed sharing device is connected to the second-day feed interface of the first base station; The first communication terminal of the second-day feed sharing device is connected to the second-day feed. 6. An antenna feeder sharing system, characterized in that it comprises: The first base station, the second base station, the first antenna sharing device according to any one of claims 1 to 4, the first antenna, and the second antenna; The second communication terminal of the first antenna sharing device is connected to the first antenna interface of the first base station; The third communication terminal of the first antenna feeder sharing device is connected to the second day feeder interface of the second base station; The first communication terminal of the first antenna sharing device is connected to the first antenna; The first feeder interface of the second base station is connected to the second feeder; The receiving main set output interface of the second base station is connected to the second feeder interface of the first base station. 7. The system of claim 6, wherein: An amplifier or attenuator is also connected in series between the receiving main set output interface of the second base station and the second feed interface of the first base station. 8. An antenna feed sharing method, characterized in that: Receive the first signal from the antenna feeder; performing filtering processing on the first signal according to the first passband range and the second passband range respectively, to form a second signal and a third signal; sending said second signal to a first base station, and sending said third signal to a second base station; Wherein, the passband range is determined according to the signal frequency received by the corresponding base station, and the ranges of the channels do not overlap with each other. 9. The method of claim 8, further comprising: receiving a fourth signal from the first base station, and filtering the fourth signal according to a third passband range; sending the filtered fourth signal to an antenna feeder; Wherein, the third passband range is determined according to the signal frequency sent by the first base station, and the third passband range does not overlap with other passband ranges. 10. The method of claim 8, further comprising: receiving a fourth signal from the first base station and a fifth signal from the second base station, and performing filter processing on the fourth signal and the fifth signal according to the third passband range and the fourth passband range; combining the filtered fourth and fifth signals; sending the combined filtered fourth signal and fifth signal to an antenna feeder; Wherein, the third passband range and the fourth passband range are determined according to the frequency of the signal sent by the corresponding base station, and the third passband range, the fourth passband range and other said channel ranges do not overlap with each other.

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