CN102869023A - Indoor communication distribution system and communication method thereof - Google Patents

Abstract

The invention provides an indoor communication distribution system and a communication method thereof. The system includes: a near-end signal processing device and a remote signal processing device, the near-end communication processing device and the remote signal processing device are connected through a feeder communication, wherein the near-end signal processing device includes an intermediate frequency signal generation module and a feeder transmission combination module; the remote signal processing device includes a feeder transmission splitting module, an up-conversion module, an indoor dual-polarization antenna and an indoor single-polarization antenna. The technical scheme of the invention can simultaneously transmit LTE system signals and other communication system signals, can effectively reduce the cost of indoor coverage construction of the LTE system, and can meet the capacity requirements of the LTE communication system.

Description

Indoor communication distribution system and communication method thereof

technical field

The invention relates to indoor distributed communication technology, in particular to an indoor communication distribution system and a communication method thereof.

Background technique

With the development of the Internet and the large-scale application of the third-generation mobile communication technology (3rd-generation, 3G) network, the user's demand for data services is increasing, and the data services of users are mostly in indoor scenarios. Therefore, indoor The distribution system becomes the main component of the network coverage of the communication system. In addition, as an evolution technology of 3G, the application of Long Term Evolution (LTE) technology is becoming more and more extensive, but how to integrate LTE with the traditional second generation (2G) network, third generation Mobile communication technology (3rd-generation, 3G) network convergence becomes very important.

At present, indoor communication distribution systems for indoor network coverage are usually established to meet 2G and 3G networks, and do not support Multiple-Input Multiple-Out-put (MIMO) technology, and MIMO technology is LTE It is an important means for the communication system to increase the system capacity. Therefore, when the indoor communication distribution system of the existing LTE communication system is constructed, two channels are usually constructed separately or one channel is constructed separately, and the other channel is combined with the existing indoor distribution system, resulting in a long system construction period and high cost. It is beneficial to the popularization and application of LTE technology.

To sum up, for the existing technology, how to combine LTE with the communication network of the traditional indoor distribution system, reduce the cost of LTE system construction, meet the demand of LTE system capacity at the same time, realize the network coverage of indoor multi-communication system signals, become LTE One of the key factors for promotion and application.

Contents of the invention

The purpose of the present invention is to provide an indoor communication distribution system and its communication method to effectively combine the LTE communication system with the traditional communication system, effectively realize the network coverage of the indoor LTE signal and other communication system signals, and reduce the system construction cost. And can effectively meet the communication capacity of the LTE system.

The present invention provides an indoor communication distribution system, including a near-end signal processing device and a remote signal processing device, the near-end communication processing device and the far-end signal processing device are connected through a feeder communication, wherein the near-end The signal processing unit includes:

An intermediate frequency signal generating module, configured to generate a first intermediate frequency signal and a second intermediate frequency signal with different frequencies according to the two baseband signals sent by the first communication base station, and combine the first intermediate frequency signal and the second intermediate frequency signal to generate a first intermediate frequency signal Combined signal, the first communication base station is a base station supporting the LTE communication system;

The feeder transmission combination module is configured to receive the second communication signal sent by the second communication base station, and combine the first combination signal with the second communication signal to generate a second combination signal, and the second communication The base station is a base station supporting a communication system different from LTE;

The remote signal processing device includes:

A feeder transmission branching module, configured to receive the second combined signal and perform signal separation, and separate to obtain the first intermediate frequency signal and the second intermediate frequency signal in the first combined signal, and the second communication signal;

An up-conversion module, configured to up-convert the first intermediate frequency signal and the second intermediate frequency signal in the first combined signal obtained after separation into a first radio frequency signal and a second radio frequency signal with the same frequency;

An indoor dual-polarized antenna connected to the up-conversion module for receiving and transmitting the first radio frequency signal and the second radio frequency signal;

The indoor single-polarization antenna is connected to the feeder transmission branching module, and is used to receive and transmit the second communication signal in the second combined signal obtained through separation.

The present invention also provides a communication method for an indoor communication distribution system, including:

The near-end signal processing device generates a first intermediate frequency signal and a second intermediate frequency signal with different frequencies according to the two baseband signals sent by the first communication base station, and combines the first intermediate frequency signal and the second intermediate frequency signal to form a first combined circuit signal, and receiving a second communication signal sent by a second communication base station, and combining the first combined signal with the second communication signal to generate a second combined signal;

The near-end signal processing device transmits the second combined signal to the far-end signal processing device through a feeder;

The remote signal processing device receives the second combined signal and performs signal separation to obtain a first intermediate frequency signal, a second intermediate frequency signal, and a second communication signal in the first combined signal;

The remote signal processing device up-converts the first intermediate frequency signal and the second intermediate frequency signal in the first combined signal obtained from separation into a first radio frequency signal and a second radio frequency signal with the same frequency, and sends them to the indoor The dual-polarized antenna is transmitted by the indoor dual-polarized antenna, and the second communication signal in the second combined signal obtained by separation is sent to the indoor single-polarized antenna, and the indoor single-polarized antenna launch out;

The first communication base station is a base station supporting an LTE communication system, and the second communication base station is a base station supporting a communication system other than LTE.

The indoor communication distribution system and communication method provided by the present invention can integrate LTE communication signals with communication signals of other systems and transmit them through one feeder, which can effectively reduce the deployment cost of the LTE indoor communication system; at the same time, the technology of the present invention The scheme can also realize MIMO communication of LTE signals, which can effectively improve the system capacity of the LTE communication system.

Description of drawings

FIG. 1 is a schematic structural diagram of an indoor communication distribution system provided by Embodiment 1 of the present invention;

FIG. 2 is a schematic structural diagram of an intermediate frequency signal generation module in an embodiment of the present invention;

3 is a schematic diagram of the principle of transmitting LTE communication signals in an embodiment of the present invention;

FIG. 4 is a schematic flowchart of a communication method of the indoor communication distribution system provided by Embodiment 2 of the present invention.

Detailed ways

FIG. 1 is a schematic structural diagram of an indoor communication distribution system provided by Embodiment 1 of the present invention. As shown in Figure 1, the indoor communication distribution system of this embodiment may include a near-end signal processing device 1 and a remote signal processing device 2, and the near-end communication processing device 1 and the remote signal processing device 2 communicate through a feeder 3 connection, wherein the near-end signal processing device 1 includes an intermediate frequency signal generation module 11 and a feeder transmission combination module 12; the far-end signal processing device 2 includes a feeder transmission splitting module 21, an up-conversion module 22, an indoor dual-polarized antenna 23 and Indoor single polarized antenna 24. The indoor communication distribution system of this embodiment can realize the network coverage of the LTE communication system and other communication systems. In this way, when the LTE communication system is deployed indoors, it can be deployed based on the indoor distribution system of the traditional communication system, wherein the near-end signal processing device 1 can be It is deployed in a computer room, and the remote signal processing module 2 can be deployed indoors in a building to achieve indoor communication network coverage.

In this embodiment, as shown in FIG. 1, the near-end signal processing device 1 can transmit the communication signal of the LTE communication system and the communication signal of other communication systems to the far-end signal processing device 2 through a feeder 3, so as to realize the LTE communication system and the communication signal of other communication systems. Indoor network coverage of other communication systems. Specifically, the intermediate frequency signal generation module 11 in the near-end signal processing device 1 can generate the first intermediate frequency signal a1 and the second intermediate frequency signal a2 with different frequencies according to the baseband signals s1 and s2 sent by the LTE communication base station 13, and can use the The first intermediate frequency signal a1 and the second intermediate frequency signal a2 are combined to generate the first combined signal a; the feeder transmission combining module 12 is connected to the intermediate frequency signal generating module 11 for receiving the second communication base station, which is 3G communication in this embodiment The second communication signal s3 sent by the base station 14 can combine the first combined signal a with the second communication signal s3 to generate a second combined signal c; then, the near-end signal processing device 1 can generate the second combined signal The two-combined signal c is transmitted to the remote signal processing device 2 through the feeder 3 and processed by the remote signal processing device 2 . It can be seen that the combination of LTE communication signals and 3G communication signals can be realized by adopting the combination method and generating two intermediate frequency signals, so that the signal can be transmitted through one feeder, which can effectively integrate the LTE communication system with the 3G communication signal. The traditional 3G communication systems are integrated together, thereby reducing the construction cost of the LTE indoor communication system.

Those skilled in the art can understand that the above-mentioned first intermediate frequency signal a1 and second intermediate frequency signal a2 are generated based on two baseband signals of the LTE communication base station, that is, the first intermediate frequency signal a1 and the second intermediate frequency signal a2 are the signals of the LTE communication system. For the communication signal, the purpose of generating two channel signals is to support MIMO communication, so as to improve the system capacity of the LTE communication system.

In this embodiment, after the remote signal processing device 2 receives the second combined signal c sent by the near-end signal processing device 1 through the feeder 3, it can separate the combined signal, and the baseband signal sent by the LTE communication base station 13 The communication signals s1 and s2, and the second communication signal s3 sent by the 3G communication base station 14 are respectively transmitted to realize the transmission of LTE and 3G signals. Specifically, the feeder transmission branching module 21 in the remote signal processing device 2 can receive the second combined signal through the feeder 3, and perform signal separation on it to obtain the first intermediate frequency signal a1 in the first combined signal a and the second intermediate frequency signal a2, and the second communication signal s3; the up-conversion module 22 is connected to the feeder transmission splitting module 21, and can separate the first intermediate frequency signal a1 and the second The intermediate frequency signal a2 is up-converted into the first radio frequency signal d1 and the second radio frequency signal d2 with the same frequency respectively, and the first radio frequency signal d1 and the second radio frequency signal d2 are the communication signals sent by the LTE communication base station 13; the indoor dual-polarized antenna 23 It is connected with the up-conversion module 22 for receiving and transmitting the first radio frequency signal d1 and the second radio frequency signal d2; the indoor single-polarization antenna 24 is connected with the feeder transmission splitting module 21 for receiving the separated second combination The second communication signal s3 in the signal c is transmitted.

Those skilled in the art can understand that the above-mentioned first radio frequency signal d1 and second radio frequency signal d2, as well as the first intermediate frequency signal a1 and the second intermediate frequency signal a2 are communications corresponding to the baseband signals s1 and s2 sent by the LTE communication base station 13. signal, wherein the first intermediate frequency signal a1 and the second intermediate frequency signal a2 are for the transmission of communication signals in the LTE communication system in the feeder 3, and the first radio frequency signal d1 and the second radio frequency signal d2 correspond to the baseband signals s1 and s2 The radio frequency signal is used to ensure that the communication signal of the LTE communication system can be transmitted through the indoor dual-polarized antenna 23 .

Those skilled in the art can understand that the above-mentioned indoor dual-polarized antenna 23 has dual antennas, which can transmit two radio frequency signals, so that MIMO communication can be realized, so that the system of this embodiment can support MIMO communication and improve the performance of the LTE communication system. system capacity. Wherein, the dual-polarized antenna may also be referred to as a MIMO antenna.

Fig. 2 is a schematic structural diagram of an intermediate frequency signal generation module in an embodiment of the present invention. As shown in Figure 2, the intermediate frequency signal generating module 11 may specifically include a dual-channel radio remote module 111, a frequency down conversion module 112 and an intermediate frequency combining module 113, wherein:

The dual-channel radio remote module 111 is configured to receive baseband signals s1 and s2 transmitted by the LTE communication base station 13, and generate third radio frequency signals e1 and fourth radio frequency signals e2 with the same frequency respectively;

A down-conversion module 112, configured to down-convert the third radio frequency signal e1 and the fourth radio frequency signal e2 into a first intermediate frequency signal a1 and a second intermediate frequency signal a2 respectively;

The intermediate frequency combining module 113 is configured to combine the first intermediate frequency signal a1 and the second intermediate frequency signal a2 to generate a first combined signal a.

In this embodiment, the dual-channel radio remote module (Radio Remote Unit, RRU) 111 can be connected to the baseband processing unit (Building Base band Unit, BBU) in the LTE communication base station 13 through an optical fiber, and is used to receive the baseband signal sent by the BBU s1 and s2, and convert the baseband signals s1 and s2 into radio frequency signals for frequency band transmission, namely the above-mentioned third radio frequency signal e1 and fourth radio frequency signal e2.

In this embodiment, as shown in FIG. 2 , the above-mentioned down-conversion module 112 may specifically include a first down-conversion unit 1121 and a second down-conversion unit 1122, both of which are connected to the dual-channel radio remote module 111. The first down-conversion unit 1121 can down-convert the third radio frequency signal e1 output by the dual-channel radio remote module 111 into a first intermediate frequency signal a1, and the second down-conversion unit 1122 can down-convert the fourth radio frequency signal e2 output by the dual-channel remote radio module 111 The frequency is converted into the second intermediate frequency signal a2. In this way, the transmission of LTE communication signals in the feeder 3 can be facilitated.

In this embodiment, as shown in FIG. 1, the above-mentioned up-conversion module 22 may specifically include a first up-conversion unit 221 and a second up-conversion unit 222, both of which are connected to the feeder transmission branching module 21, wherein the first up-conversion unit 221 is used to up-convert the first intermediate frequency signal a1 after the feeder transmission splitting module 21 separates the second combined signal c into the first radio frequency signal d1, and the second up-conversion unit 222 is used to convert the feeder transmission splitting module 22 to the first radio frequency signal d1. The second intermediate frequency signal a2 after the separation of the second combined signal c is up-converted into a second radio frequency signal d2, and the first up-conversion unit 221 and the second up-conversion unit 222 are connected to the indoor dual-polarized antenna 23 to connect the two The first radio frequency signal d1 and the second radio frequency signal d2 with the same frequency are respectively transmitted to the indoor dual-polarized antenna 23 to realize signal transmission.

In this embodiment, the above-mentioned feeder 3 is also provided with a multiplexing module 6, which is connected between the near-end signal processing device 1 and the far-end signal processing device 2, and is used to output the first signal output from the near-end signal processing device 1. The two combined signal c is multiplexed to multiple remote signal processing devices, so that the needs of indoor distribution settings can be met, and the multiplexed signal can be multiplexed to remote signal processing on different floors through the multiplexing module 6 module. Wherein, the multiplexing module 6 can specifically be a power divider or a coupler.

The transmission process of the LTE communication signal in the system of this embodiment will be described below, so as to have a better understanding of the technical solution of the embodiment of the present invention.

Fig. 3 is a schematic diagram of the principle of transmitting an LTE communication signal in an embodiment of the present invention. As shown in Figure 3, the BBU in the LTE communication base station emits two baseband signals s1 and s2, which are transmitted to the dual-transmission RRU through optical fiber, that is, the above-mentioned dual-channel remote radio module. The dual-transmission RRU can transmit two low-power The radio frequency signal, that is, the third radio frequency signal e1 and the fourth radio frequency signal e2; the third radio frequency signal e1 and the fourth radio frequency signal e2 are converted into The first intermediate frequency signal a1 and the second intermediate frequency signal a2 of different frequencies; the first intermediate frequency signal a1 and the second intermediate frequency signal a2 pass through the combiner, that is, after the above-mentioned intermediate frequency combining module is combined, the first combined signal a is generated; The first combined signal a and the second communication signal s3 sent by the 3G communication base station can be combined by the combiner, that is, the above-mentioned feeder transmission combined module, to generate the second combined signal c, and transmit it through the feeder; the second The two-way signal c passes through the power divider, that is, the above-mentioned multiplexing module generates multiple multiplexed signals and multiplexes them into multiple channels to meet the requirements of space division multiplexing and to meet the coverage of more indoor communications; one After the splitter on the space division multiplexing line, that is, the above-mentioned feeder transmission splitting module receives the multiplexed second combined signal c, it can be separated to obtain the first intermediate frequency signal in the first combined signal a a1, the second intermediate frequency signal a2, and the second communication signal s3; the second communication signal s3 can be transmitted through a traditional ordinary antenna, that is, an indoor single-polarized antenna, and the first intermediate frequency signal a1 and the second intermediate frequency signal a2 are transmitted through the upper Frequency conversion, that is, the first frequency up-conversion unit and the second frequency up-conversion unit mentioned above are respectively up-converted into the first radio frequency signal d1 and the second radio frequency signal d2, and are respectively input to the two polarization input ports of the dual-polarized antenna, and the indoor The dual polarized antenna transmits out.

Those skilled in the art can understand that in the solutions shown in the above-mentioned Figures 1-3, the transmission of LTE signals and 3G signals can be realized. In practical applications, in order to realize the reception of LTE signals and 3G signals, in the above-mentioned remote signal processing device, The down-conversion unit can also be integrated in the up-conversion module to down-convert the LTE signal received by the indoor dual-polarized antenna to generate an intermediate frequency signal. After the signals and 3G signals are combined, they are transmitted to the near-end signal processing device through the feeder; similarly, the feeder transmission combining module in the near-end signal processing device can also integrate a splitting module to process the received signals including LTE intermediate frequency It is separated from the combined signal of the 3G signal, and the intermediate frequency signal generation module can also integrate an up-conversion unit to up-convert the intermediate frequency signal into a radio frequency signal that can be processed by the LTE communication base station. Wherein, the specific implementation of receiving the signal is just opposite to the process of transmitting the signal in FIG. 3 , and the specific process will not be repeated here.

Those skilled in the art can understand that the above-mentioned second communication base station can be a 3G base station, such as Wideband Code Division Multiple Access (WCDMA), Time Division-Synchronous Code Division Multiple Access (Time Division-Synchronous Code Division Multiple Access) , TD-SCDMA) and other communication base stations, it can also be a 2G communication base station, for example, it can support communication base stations such as Global System of Mobile Communication (GSM) and Code Division Multiple Access (CDMA).

The indoor communication distribution system provided by the embodiment of the present invention can integrate LTE communication signals with communication signals of other systems and transmit them through one feeder, so that the transmission of LTE signals and signals of other communication systems can be realized in one communication system. The deployment cost of the LTE indoor communication system can be effectively reduced; at the same time, the embodiments of the present invention can also implement MIMO communication of LTE signals, which can effectively improve the system capacity of the LTE communication system.

FIG. 4 is a schematic flowchart of a communication method of the indoor communication distribution system provided by Embodiment 2 of the present invention. The communication method of this embodiment can be implemented based on the system embodiments shown in the above-mentioned Figures 1-3. Specifically, as shown in Figure 4, the method of this embodiment can include the following steps:

Step 101. The near-end signal processing device generates a first intermediate frequency signal and a second intermediate frequency signal with different frequencies according to the two baseband signals sent by the first communication base station, and combines the first intermediate frequency signal and the second intermediate frequency signal to generate a first combined signal. and receiving a second communication signal sent by a second communication base station, and combining the first combined signal with the second communication signal to generate a second combined signal;

Step 102, the near-end signal processing device transmits the second combined signal to the far-end signal processing device through a feeder;

Step 103, the remote signal processing device receives the second combined signal through the feeder and separates the signals to obtain the first intermediate frequency signal, the second intermediate frequency signal and the second communication signal in the first combined signal;

Step 104: The remote signal processing device up-converts the first IF signal and the second IF signal in the separated first combined signal into a first RF signal and a second RF signal with the same frequency, and sends them to the indoor dual The polarized antenna is radiated by the indoor dual-polarized antenna, and sends the second communication signal in the separated second combined signal to the indoor single-polarized antenna, and is radiated by the indoor single-polarized antenna.

In this embodiment, the above-mentioned first communication base station is a base station supporting an LTE communication system, and the second communication base station is a base station supporting a communication system other than LTE. This embodiment is a 3G communication base station.

In this embodiment, the first intermediate frequency signal and the second intermediate frequency signal with different frequencies are generated according to the baseband signal sent by the first communication base station, and the first intermediate frequency signal and the second intermediate frequency signal are combined to generate the first combined signal include:

Receive two baseband signals through the dual-channel radio remote module, and generate a third radio frequency signal and a fourth radio frequency signal with the same frequency;

down-converting the third radio frequency signal and the fourth radio frequency signal into the first intermediate frequency signal and the second intermediate frequency signal respectively by using a frequency down conversion module;

The first intermediate frequency signal and the second intermediate frequency signal are combined by an intermediate frequency combining module to generate the first combined signal.

In addition, the method in this embodiment may also use a multiplexing module to multiplex the second combined signal to multiple remote signal processing devices. Wherein, the multiplexing module can specifically be a power divider or a coupler.

The method of this embodiment can be implemented based on the above-mentioned system embodiments shown in FIGS. 1-3 , and its specific implementation can refer to the description of the above-mentioned system embodiments, which will not be repeated here.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention, rather than limiting them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: It is still possible to modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the technical solutions of the various embodiments of the present invention. scope.

Claims (10)

1. indoor communications compartment system, it is characterized in that, comprise near end signal processing unit and remote signaling processing unit, communicate to connect by a feeder line between described near-end communication processing apparatus and the remote signaling processing unit, wherein, described near end signal processing unit comprises:

The intermediate-freuqncy signal generation module, be used for different the first intermediate-freuqncy signal and the second intermediate-freuqncy signals of two-way baseband signal difference generated frequency according to the transmission of the first communication base station, and described the first intermediate-freuqncy signal and the second intermediate-freuqncy signal are closed the road generate first and close the road signal, described the first communication base station is for supporting the communication base station of LTE communication system;

The road module is closed in the feeder line transmission, be used for receiving the second communication signal that the second communication base station sends, and close road signal and described second communication signal with described first and close the road and generate second and close the road signal, described second communication base station is for supporting to be different from the communication base station of LTE communication system;

Described remote signaling processing unit comprises:

Feeder line transmission shunt module is used for receiving described second and closes the road signal and carry out the signal separation, separates obtaining the described first the first intermediate-freuqncy signal and second intermediate-freuqncy signal of closing in the signal of road, and the second communication signal;

Up-converter module, the described first first intermediate-freuqncy signal of closing the road signal that is used for separation is obtained is up-converted into respectively the first identical radiofrequency signal of frequency and the second radiofrequency signal with the second intermediate-freuqncy signal;

Indoor dual polarized antenna is connected with described up-converter module, is used for receiving described the first radiofrequency signal and the second radiofrequency signal and launching;

Indoor single-polarized antenna is connected with described feeder line transmission shunt module, is used for receiving that separation obtains described second closes the second communication signal of road signal and launch.

2. indoor communications compartment system according to claim 1 is characterized in that, comprising:

Described intermediate-freuqncy signal generation module comprises:

The binary channels radio frequency remoto module is used for receiving described two-way baseband signal, and identical the 3rd radio frequency signal and the 4th radiofrequency signal of difference generated frequency;

Down conversion module is used for described the 3rd radio frequency signal and the 4th radiofrequency signal are downconverted into respectively described the first intermediate-freuqncy signal and the second intermediate-freuqncy signal;

Intermediate frequency closes the road module, is used for that described the first intermediate-freuqncy signal and the second intermediate-freuqncy signal are closed the road and generates described first and close the road signal.

3. indoor communications compartment system according to claim 1 is characterized in that, also comprises:

Multiplexing module is connected to described near-end and processes between signalling and the remote signaling processing unit, is used for closing the road signal multiplexing to a plurality of remote signaling processing unit with described second.

4. indoor communications compartment system according to claim 3 is characterized in that, described multiplexing module is power splitter or coupler.

5. arbitrary described indoor communications compartment system is characterized in that according to claim 1-4, and described second communication base station is for supporting the base station of GSM, CDMA, WCDMA or TD-SCDMA communication system.

6. the communication means of an indoor communications compartment system is characterized in that, comprising:

Different the first intermediate-freuqncy signal and the second intermediate-freuqncy signals of two-way baseband signal generated frequency that the near end signal processing unit sends according to the first communication base station, and described the first intermediate-freuqncy signal and the second intermediate-freuqncy signal are closed the road generate first and close the road signal, and receive the second communication signal that the second communication base station sends, and will described first close road signal and second communication signal and close road generation second and close the road signal;

Described near end signal processing unit closes the road signal by a feeder line with described second and transfers to the remote signaling processing unit;

Described remote signaling processing unit receives described second and closes the road signal and carry out the signal separation, separates obtaining the described first the first intermediate-freuqncy signal and second intermediate-freuqncy signal of closing in the signal of road, and the second communication signal;

Described remote signaling processing unit is up-converted into respectively the first identical radiofrequency signal of frequency and the second radiofrequency signal with the described first first intermediate-freuqncy signal of closing in the signal of road that separation obtains with the second intermediate-freuqncy signal, and be sent to indoor dual polarized antenna, launched by described indoor dual polarized antenna, and the described second second communication signal that closes in the signal of road that separation obtains is sent to indoor single-polarized antenna, launched by described indoor single-polarized antenna;

Described the first communication base station is for supporting the base station of LTE communication system, and described second communication base station is for supporting to be different from the base station of LTE communication system.

7. the communication means of indoor communications compartment system according to claim 6, it is characterized in that, described different the first intermediate-freuqncy signal and the second intermediate-freuqncy signals of two-way baseband signal generated frequency that sends according to the first communication base station, and will described the first intermediate-freuqncy signal and the second intermediate-freuqncy signal close road generation first and close the road signal and comprise:

Receive described two-way baseband signal by the binary channels radio frequency remoto module, and identical the 3rd radio frequency signal and the 4th radiofrequency signal of difference generated frequency;

Utilize down conversion module that described the 3rd radio frequency signal and the 4th radiofrequency signal are downconverted into respectively described the first intermediate-freuqncy signal and the second intermediate-freuqncy signal;

Utilizing intermediate frequency to close the road module closes the road with described the first intermediate-freuqncy signal and the second intermediate-freuqncy signal and generates described first and close the road signal.

8. the communication means of indoor communications compartment system according to claim 6 is characterized in that, also comprises:

Utilize multiplexing module to close the road signal multiplexing to a plurality of remote signaling processing unit with described second.

9. the communication means of indoor communications compartment system according to claim 8 is characterized in that, described multiplexing module is power splitter or coupler.

10. the communication means of arbitrary described indoor communications compartment system is characterized in that according to claim 6-9, and described second communication base station is for supporting the base station of GSM, CDMA, WCDMA or TD-SCDMA communication system.

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