CN102651874B - Signal transmission method, system and device for indoor distribution system - Google Patents

Abstract

The embodiment of the present invention discloses a method, system and equipment for signal transmission of an indoor distribution system. By applying the technical solution proposed in the embodiment of the present invention, the dual-channel signal of the base station is processed by frequency conversion, and the signals of the two channels are converted into After the signal is frequency-division multiplexed with the transmission signal and the network data signal, it is transmitted through the super five network cable, so that the dual-channel signal transmission of the base station is carried out through the widely deployed super five network cable, which simplifies the indoor network coverage. The line deployment procedure improves the quality of indoor network coverage and reduces the corresponding cost input.

Description

A method, system and device for signal transmission of an indoor distribution system

technical field

The present invention relates to the field of communication technology, in particular to a method, system and equipment for signal transmission of an indoor distribution system.

Background technique

In recent years, with the rapid development of mobile communication, the number of users of wireless communication, broadband wireless access, and WLAN (Wireless Local Area Network, wireless local area network) has increased rapidly. The scale of these networks is also increasing, and the problems of indoor coverage are also increasing protrude.

From the perspective of 3G (3rd Generation, third-generation mobile communication system) business development, mobile communication services have high requirements for indoor services, and traffic and services account for more than 70% of the entire network.

In big cities, a large number of outdoor base stations have been established and expanded continuously, and outdoor network construction has reached a considerable scale; in contrast, indoors, especially in large buildings without indoor distribution systems, such as restaurants, office buildings, shopping malls, Due to the shielding effect of buildings and many other factors in subways, airports, and stations, there are a large number of signal blind areas, weak areas or frequency switching areas.

Therefore, indoor service coverage becomes an increasingly important problem to be solved urgently.

Combining the experience and trend of 2G (2nd Generation, second-generation mobile communication system) and 3G mobile communication system development and operation, the indoor deep coverage of LTE (Long Term Evolution, long-term evolution) system will be a very important part. Indoor networking, especially the realization of the MIMO (Multiple Input Multiple Output, Multiple Input Multiple Output) mode with LTE characteristics is very necessary.

The current solutions for indoor coverage mainly include indoor distribution systems, repeaters, and outdoor stations to cover indoors. After the introduction of LTE technology, on the one hand, the frequency band of LTE is relatively high, and the space loss is large, and the performance of using outdoor stations to cover indoors is poor. , on the other hand, the distributed base station networking method adopted by LTE is more flexible, and the repeater needs to consider the interference problem, therefore, the repeater method is rarely used in LTE, and the indoor coverage of LTE mainly adopts indoor distributed system approach.

In the process of realizing the present invention, the inventor finds that there are at least the following problems in the prior art:

In the indoor distribution system coverage of TD-SCDMA (Time Division-Synchronous Code Division Multiple Access, Time Division Synchronous Code Division Multiple Access), since the TD-SCDMA frequency band is 2GHz, it is found in the actual network deployment that although indoor distribution is deployed in the corridor system, but the TD-SCDMA signal in the user's home is still very poor. In order to achieve the coverage of the user's home, there is currently a Femto solution, which exposes the frequency allocation of Femto deployment and possible interference, synchronization, cost and other problems.

Contents of the invention

The purpose of the present invention is to provide a method, system and equipment for signal transmission of an indoor distribution system, so as to realize the transmission of dual-channel signals through the super five network cables deployed indoors. For this reason, the embodiment of the present invention adopts the following technical solutions:

A method for signal transmission of an indoor distribution system, comprising the following steps:

When the processing device receives the dual-channel signal sent by the network device at the local end, it performs frequency conversion processing on the dual-channel signal;

The processing device performs frequency division multiplexing processing on a part of the transmission signal and the network data signal and the signal of one channel of the two-channel signal after frequency conversion processing to generate a multiplexed signal, and converts the transmission signal and the network data The other part of the signal is frequency-division multiplexed with the signal of the other channel of the two-channel signal after frequency conversion processing to generate another multiplexed signal;

The processing device sends the two-way multiplexed signal to the processing device at the opposite end through the super-category 5 network cable.

A treatment device comprising:

The local communication module is used to receive the dual-channel signal sent by the local network equipment;

A frequency conversion module, configured to perform frequency conversion processing on the dual-channel signal when the local communication module receives the dual-channel signal sent by the local network device;

The multiplexing module is used to perform frequency division multiplexing processing on a part of the transmission signal and the network data signal and the signal of one channel of the two-channel signal after the frequency conversion processing by the frequency conversion module to generate a multiplexed signal, and Perform frequency division multiplexing processing on another part of the transmission signal and the network data signal and the signal of the other channel of the two-channel signals after the frequency conversion processing by the frequency conversion module to generate another multiplexed signal;

The communication module at the opposite end is used to send the two multiplexed signals generated by the multiplexing module to the processing device at the opposite end through the Cat5e network cable.

A method for signal transmission of an indoor distribution system, comprising the following steps:

The processing device receives the two-way multiplexing signal sent by the processing device at the opposite end through the super five network cable;

The processing device performs frequency decomposition and multiplexing on the two multiplexed signals respectively, and separates the transmission signal, the network data signal and the dual-channel signal processed by frequency conversion;

The processing device performs inverse frequency processing on the dual-channel signal processed by frequency conversion to restore the original frequency;

The processing device sends the frequency-recovered dual-channel signal, the transmission signal and the network data signal to corresponding network devices.

A treatment device comprising:

The peer communication module is used to receive the two-way multiplexing signal sent by the peer processing device through the super five network cable;

The multiplexing module is used to perform frequency demultiplexing and multiplexing on the two multiplexed signals received by the peer communication module, and separate the transmission signal, the network data signal and the dual-channel signal after frequency conversion processing;

The frequency conversion module is used to perform frequency inversion processing on the dual-channel signals separated by the multiplexing module and undergo frequency conversion processing to restore the original frequency;

The local communication module is configured to send the dual-channel signal whose frequency is recovered by the frequency conversion module, the transmission signal and the network data signal separated by the multiplexing module to corresponding network equipment.

A system for signal transmission of an indoor distribution system, comprising:

Network-side communication equipment, used to send dual-channel signals, transmission signals and network data signals;

The network-side processing device is configured to receive the dual-channel signal, transmission signal, and network data signal sent by the network-side communication device, perform frequency conversion processing on the dual-channel signal, and convert a part of the transmission signal and the network data signal to the The signal of one channel of the dual-channel signal after frequency conversion processing is subjected to frequency division multiplexing processing to generate a multiplexed signal, and the transmission signal and the other part of the network data signal are combined with the frequency conversion processed dual-channel signal. Frequency division multiplexing processing is performed on the signal of the other channel to generate another multiplexed signal, and then the two multiplexed signals are sent to the indoor antenna side processing device through the super five network cable;

The indoor antenna-side processing device is used to perform frequency demultiplexing and multiplexing on the received two-way multiplexing signals sent by the network-side processing device through the super-category 5 network cable, and separate the transmission signal, the network data signal and the frequency-converted signal. Dual-channel signal, carry out inverse frequency processing on the dual-channel signal after frequency conversion processing, restore the original frequency, and send the dual-channel signal, transmission signal and network data signal of the restored frequency to the indoor antenna side communication equipment;

The indoor antenna-side communication device is configured to receive the dual-channel signal of the recovered frequency, the transmission signal and the network data signal sent by the indoor antenna-side processing device.

Compared with the prior art, the technical solution proposed by the embodiment of the present invention has the following advantages:

By applying the technical solution proposed by the embodiment of the present invention, by performing frequency conversion processing on the dual-channel signals of the base station, and performing frequency division multiplexing processing on the signals of the two channels with the transmission signal and the network data signal respectively, the Therefore, the dual-channel signal transmission of the base station is carried out through the widely deployed CAT5E network cable, which simplifies the line deployment procedure for indoor network coverage, improves the quality of indoor network coverage, and reduces the corresponding cost input.

Description of drawings

FIG. 1 is a schematic flowchart of a method for signal transmission of an indoor distribution system proposed by an embodiment of the present invention;

Fig. 2 is a schematic flow chart of the processing process when the processing device in the signal transmission method of the indoor distribution system proposed by the embodiment of the present invention receives the information sent by the opposite end through the super-category 5 network cable;

3 is a schematic diagram of a specific application scenario of a method for signal transmission of an indoor distribution system proposed by an embodiment of the present invention;

FIG. 4 is a schematic structural diagram of a processing device proposed in an embodiment of the present invention;

Fig. 5 is a schematic structural diagram of a signal transmission system of an indoor distribution system proposed by an embodiment of the present invention.

Detailed ways

The technical solutions in the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the present invention. Apparently, the described embodiments are part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

As shown in FIG. 1, it is a schematic flowchart of a method for signal transmission of an indoor distribution system proposed by an embodiment of the present invention, which specifically includes the following steps:

Step S101, the processing device receives a dual-channel signal sent by the local network device.

Step S102, the processing device performs frequency conversion processing on the dual-channel signal.

Step S103, performing frequency division multiplexing processing on a part of the transmission signal and network data signal of the processing device with the signal of one channel of the two-channel signal after frequency conversion processing to generate a multiplexed signal, and combining the transmission signal and The other part of the network data signal is frequency-division multiplexed with the signal of the other channel of the two-channel signal after frequency conversion processing to generate another multiplexed signal.

Among them, in practical applications, the transmission signal includes various signal types required to ensure indoor network coverage, for example, at least one or more of the synchronization signal, monitoring signal and power supply signal, and the specific content of the transmission signal Adjustments can be made according to actual needs, and such changes do not affect the protection scope of the present invention.

In addition, the above-mentioned strategy of dividing the transmission signal and the network data signal into two parts can also be set according to actual needs. For example, when the transmission signal is a combination of the synchronization signal, the monitoring signal and the power supply signal, you can set The synchronization signal and the monitoring signal are the first part, and the power supply signal and the network data signal form the second part. Of course, you can also set the synchronization signal and the power supply signal as the first part, and the monitoring signal and the network data signal form the second part. Changes in the content of the division strategy will not affect the protection scope of the present invention.

After the above-mentioned division is completed, the processing device generates a composite signal from the above-mentioned first part of the signal and one channel of the frequency-converted two-channel signal, and then combines the above-mentioned second part of the signal with the frequency-converted two-channel signal The signal from another channel in the signal generates another composite signal.

Step S104, the processing device sends the two multiplexed signals to the processing device at the opposite end through the Cat5e network cable.

In practical applications, considering the transmission characteristics of Cat5e network cables, load balancing processing is also required during the processing of this step. The specific processing process is as follows:

The processing device uses load balancing technology to send the two multiplexed signals to the processing device at the opposite end through different core wires in the super-category 5 network cable.

It can be seen from the above description that the above processing flow is the processing flow when the processing device deployed at the local end sends information to the opposite end through a Category 5e network cable. Correspondingly, the embodiment of the present invention further provides the processing flow of the opposite end The processing process when the device receives the information sent by the processing device through the super five network cable, as shown in Figure 2, includes the following steps:

Step S201, the processing device at the opposite end receives the two-way multiplexed signal sent by the processing device through a Cat5e network cable.

Considering the transmission characteristics of the super-category 5 network cable and the load balancing process in step S104, in this step, the processing device at the opposite end should first receive multiple signals received through different core wires in the super-category 5 network cable , and then, the processing device at the opposite end combines the multiple signals to generate two multiplexed signals.

Step S202 , the processing device at the opposite end performs frequency division multiplexing on the two multiplexed signals respectively, and separates the transmission signal, the network data signal and the dual-channel signal processed by frequency conversion.

Wherein, similar to step S103, the transmission signal includes a variety of signal types required to ensure indoor network coverage, for example, at least one or more of a synchronization signal, a monitoring signal, and a power supply signal, and the specific transmission signal The content can be adjusted according to actual needs, and such changes do not affect the protection scope of the present invention.

In addition, the division strategy applied in this step is consistent with the division strategy in step S103, so that the inverse processing of the operation in step S103 can be realized, and the corresponding signals are separated. For example, when the transmission signal is specifically a synchronization signal When the combination of the three signals, monitoring signal and power supply signal, if the division strategy applied in step S103 is to set the synchronization signal and the monitoring signal as the first part, and the power supply signal and the network data signal form the second part, then, in this step In the process, the processing device at the opposite end separates the synchronization signal, the monitoring signal and the frequency-converted signal of one channel from the first composite signal, and separates the power supply signal, network data signal and another channel from the second composite signal The frequency conversion processed signal.

Of course, with the difference in the division strategy applied in step S103, the separation strategy in this step is also adjusted accordingly, so that the matching signal type can be separated, and the change of the specific division strategy will not affect the present invention. scope of protection.

Step S203 , the processing device at the opposite end performs frequency inversion processing on the frequency-conversion-processed dual-channel signal to restore the original frequency.

Step S204, the processing device at the opposite end sends the dual-channel signal, the transmission signal and the network data signal of the recovered frequency to the corresponding network device at the opposite end.

Similar to the above-mentioned steps S201 to S204, if the processing device at the local end receives the two-way multiplexing signal sent by the processing device at the opposite end through a super-category 5 network cable, then the corresponding processing is also as described above, and will not be repeated here. .

In practical applications, the above-mentioned processing equipment can be installed on the network side, or on the indoor antenna side, or on both the network side and the indoor antenna side, and communicate with the opposite end through a super-category 5 network cable.

Among them, in the scenario of being installed on the network side and the indoor antenna side at the same time, the above-mentioned processing device and the processing device at the opposite end have the same physical structure, and realize the processing and inverse processing of the dual-channel signal, the transmission signal and the network data signal, thereby , and transmit the corresponding signal in the super five network cable:

When the processing device is installed on the indoor antenna side, the network device at the local end is an antenna device deployed indoors, and is used to receive the signal transmitted by the user and send the signal uplink to the network side. In the application scenario, the signal sent by the antenna device to the processing device installed on the indoor antenna side further includes transmission signals required to achieve indoor network coverage, such as synchronization signals, monitoring signals and power supply signals.

When the processing device is installed on the network side, the local network device is specifically a radio frequency unit. Of course, in a specific application, the radio frequency unit may be specifically an RRU.

Correspondingly, in a specific implementation scenario, the aforementioned dual-channel signal may specifically be a dual-channel signal of the LTE standard.

It should be pointed out that if the above-mentioned processing device is installed on the indoor antenna side and the network side at the same time, then the division of the synchronization signal, monitoring signal, power supply signal and network data signal into two parts applied by the processing device The strategy needs to be consistent between the indoor antenna side and the network side. The specific division strategy can be directly configured in the corresponding processing device, or it can be determined after negotiation between the indoor antenna side and the network side processing devices.

However, if the above-mentioned processing equipment is only installed at one end of the indoor antenna side and the network side, then, at the other end, a corresponding line needs to be set up so as to perform the corresponding inverse processing process with the processing equipment to realize dual-channel signal passing. Transmission of Cat5e network cable.

Changes in specific installation locations and content of specific division rules will not affect the scope of protection of the present invention.

Compared with the prior art, the technical solution proposed by the embodiment of the present invention has the following advantages:

By applying the technical solution proposed by the embodiment of the present invention, by performing frequency conversion processing on the dual-channel signals of the base station, and performing frequency division multiplexing processing on the signals of the two channels with the transmission signal and the network data signal respectively, the Therefore, the dual-channel signal transmission of the base station is carried out through the widely deployed CAT5E network cable, which simplifies the line deployment procedure for indoor network coverage, improves the quality of indoor network coverage, and reduces the corresponding cost input.

In the following, the technical solutions proposed in the embodiments of the present invention will be further described in detail in combination with specific application scenarios.

The embodiment of the present invention proposes to transmit the dual-channel signal through a network cable (super-category five network cable), and the corresponding technical solution can be realized by connecting a very small device in the user's home, while ensuring the user's network data application. The coverage of the wireless communication signal in the user's home is improved.

The technical solution proposed by the embodiment of the present invention relates to the field of mobile communication, especially to the coverage method of LTE indoor distribution. The signal type of the technical solution also belongs to the protection scope of the present invention.

Specific treatment options include:

The signal of each channel in the dual-channel signal sent by the LTE base station is subjected to frequency conversion processing, and the frequency of the radio frequency signal is converted to an intermediate frequency signal, and then transmitted through the currently widely used Category 5e network cable.

Since the bandwidth of the Category 5e network cable is 100MHz, the transmission rate is 100Mbps, while the single-channel signal transmission rate of the LTE base station is higher than 100Mbps. Therefore, at the end where the signal is sent, it is necessary to increase the switching device hardware to realize load balancing, so as to ensure that the signal can be reasonably distributed among the core wires of the super-category 5 network cable.

Considering that Cat5e network cables mostly work in a half-duplex mode, the signals of each channel in the LTE dual-channel signal need two pairs of core wires to be transmitted. Since there are 4 pairs of core wires in CAT5E network cables, in order to realize dual-channel signals, synchronization signals, remote equipment power supply signals (that is, the aforementioned power supply signals), equipment monitoring signals (that is, the aforementioned monitoring signals), and super The transmission of the network data signal originally to be transmitted by the user on the Category 5 network cable requires frequency division multiplexing of other signals and the LTE dual-channel signal.

In a specific implementation scenario, an example of a solution adopted is as follows:

The first channel signal, synchronization signal and equipment monitoring signal in the dual-channel signal sent by the LTE base station are transmitted through the 1st, 2nd, 3rd, and 4th lines (the first two pairs of core wires) of the super five network cable, while the super five The 5th, 6th, 7th, and 8th wires of the network cable (the last two pairs of core wires) transmit the second channel signal in the dual-channel signal sent by the LTE base station, the network cable data signal and the remote equipment power supply signal.

After the above-mentioned data is sent out through the Cat5e network cable, it is restored in the remote device, thereby realizing the transmission of the corresponding signal.

The above-mentioned processing scheme can be applied to the processing of the uplink and downlink directions of the corresponding network system at the same time, so that the dual-channel signal sent by the LTE base station can be sent to the indoor antenna through the super five network cable, and the dual-channel signal sent by the indoor antenna can also be sent. The channel signal is fed back to the network side through the super five network cable, and at the same time, the transmission of the original network data information in the super five network cable is not affected.

In combination with the application scenario shown in Figure 3, the application process of the technical solution proposed in the embodiment of the present invention in the uplink direction is further described as follows:

On the indoor antenna side, the duplexer sends the two-channel signal sent by the indoor antenna point (that is, the aforementioned antenna device) to the corresponding processing unit for frequency conversion processing, from the frequency conversion of the radio frequency signal to the intermediate frequency signal, and then the two-channel signal The frequency-converted signals on the two channels are divided into two parts with the synchronization signal, monitoring signal, power supply signal and network data signal, and are processed by frequency division multiplexing to output two multiplexed signals, which are respectively processed by load balancing. After that, it is separated into multiple signals, and is transmitted to the network side through multiple core wires of the super five types of network cables. Wherein, the LNA performs amplification processing on the transmitted signal.

In the above processing, the frequency-converted signal on one channel of the dual-channel signal, together with the synchronization signal and the monitoring signal, undergoes frequency division multiplexing processing to generate a multiplexed signal, and the other channel of the dual-channel signal The frequency-converted signal, power supply signal and network data signal are processed together by frequency division multiplexing to generate another multiplexed signal. Then, after load balancing processing, the two multiplexed signals are distributed on the super-category five network cable in the transmission. In the actual application scenario, the specific division strategy can be adopted in other ways, but the premise that needs to be guaranteed is that the signals of the two channels in the dual-channel signal must be located in two different parts respectively. In the case of ensuring this premise , the combination of other signals can be adjusted according to actual needs, and such changes do not affect the protection scope of the present invention.

On the network side, the multi-channel signals transmitted on the super five network cables are first restored to two-channel multiplexed signals, and then frequency-decomposed and multiplexed to convert the frequency-converted signals on the two channels of the dual-channel signal, as well as the synchronization signal, The monitoring signal, power supply signal and network data signal are separated separately. Among them, the synchronization signal, monitoring signal, power supply signal and network data signal are transmitted according to their corresponding lines, and the two channels of frequency-converted signals need to be converted to realize frequency recovery. After being restored to radio frequency signals, they are transmitted to the RRU.

The above describes the process of sending signals from the indoor antenna side to the network side, that is, the processing flow in the uplink direction. Correspondingly, the signal processing process from the network side to the indoor antenna side is the opposite, and the frequency conversion is performed by the network side. , frequency division multiplexing and load balancing processing, and the corresponding inverse processing is performed by the indoor antenna side, which will not be further described here.

As can be seen from the above description, the technical solution proposed by the embodiment of the present invention focuses on frequency conversion of dual-channel signals and frequency division multiplexing with synchronization signals, power supply signals, monitoring signals, and network data signals. The dual-channel signal is transmitted in the medium to realize LTE coverage in the user's home.

Compared with the prior art, the technical solution proposed by the embodiment of the present invention has the following advantages:

By applying the technical solution proposed by the embodiment of the present invention, by performing frequency conversion processing on the dual-channel signals of the base station, and performing frequency division multiplexing processing on the signals of the two channels with the transmission signal and the network data signal respectively, the Therefore, the dual-channel signal transmission of the base station is carried out through the widely deployed CAT5E network cable, which simplifies the line deployment procedure for indoor network coverage, improves the quality of indoor network coverage, and reduces the corresponding cost input.

In order to realize the technical solution of the embodiment of the present invention, the embodiment of the present invention also provides a processing device, the structural diagram of which is shown in Figure 4, including:

The local communication module 41 is used to receive the dual-channel signal sent by the local network equipment;

A frequency conversion module 42, configured to perform frequency conversion processing on the dual-channel signal when the local communication module receives the dual-channel signal sent by the local network device;

The multiplexing module 43 is used to perform frequency division multiplexing processing on a part of the transmission signal and the network data signal and the signal of one channel of the two-channel signal after the frequency conversion processing by the frequency conversion module 42 to generate a multiplexed signal and performing frequency division multiplexing processing on another part of the transmission signal and the network data signal and another channel signal in the two-channel signal after frequency conversion processing by the frequency conversion module 42 to generate another multiplexed signal;

The peer communication module 44 is configured to send the two multiplexed signals generated by the multiplexing module 43 to the peer processing device through a Cat5e network cable.

Wherein, the opposite-end communication module 44 is specifically configured to use load balancing technology to respectively send the two multiplexed signals to the opposite-end processing device through different core wires in the super-category 5 network cable.

In another specific application scenario, the peer communication module 44 is also configured to receive two multiplexed signals sent by the peer processing device through a Category 5e network cable;

The multiplexing module 43 is further configured to perform frequency demultiplexing and multiplexing on the two multiplexed signals received by the peer communication module, and separate the transmission signal, the network data signal, and the dual-channel signal through frequency conversion processing;

The frequency conversion module 42 is also used to perform frequency inversion processing on the two-channel signals separated by the multiplexing module and undergo frequency conversion processing, so as to restore the original frequency;

The local communication module 41 is also configured to send the dual-channel signal whose frequency is recovered by the frequency conversion module, and the transmission signal and network data signal separated by the multiplexing module to corresponding network equipment.

In an actual application scenario, the processing device may be installed on an indoor antenna side and/or a network side, and the dual-channel signal is specifically a dual-channel signal of an LTE standard.

When the processing device is installed on the indoor antenna side, the network device at the local end is an antenna device deployed indoors, and is used to receive the signal transmitted by the user and send the signal uplink to the network side. In the application scenario, the signal sent by the antenna device to the processing device installed on the indoor antenna side further includes transmission signals required to achieve indoor network coverage, such as synchronization signals, monitoring signals and power supply signals.

When the processing device is installed on the network side, the local network device is specifically a radio frequency unit. Of course, in a specific application, the radio frequency unit may be specifically an RRU.

Correspondingly, in a specific implementation scenario, the aforementioned dual-channel signal may specifically be a dual-channel signal of the LTE standard.

No matter which side it is installed on, the peer communication module 44 is connected to the super five network cable. In practical applications, in order to realize specific signal transmission, transmission interfaces can be set separately for synchronization signals, monitoring signals, power supply signals, and network data signals , but in order to ensure the normal transmission of signals, the position of the interface and the wiring rules need to be negotiated and determined in advance to ensure the corresponding deployment of the indoor antenna side and the network side.

Further, the processing device further includes a setting module 45, configured to set a division strategy for dividing the transmission signal and the network data signal into two parts, wherein the transmission signal includes at least the synchronization signal, the monitoring signal and the power supply signal one or more of .

Further, the embodiment of the present invention also proposes a system for signal transmission of an indoor distribution system, the schematic diagram of which is shown in Figure 5, including:

A network-side communication device 51, configured to send dual-channel signals, transmission signals and network data signals;

The network-side processing device 52 is configured to receive the dual-channel signal, the transmission signal and the network data signal sent by the network-side communication device 51, perform frequency conversion processing on the dual-channel signal, and convert a part of the transmission signal and the network data signal Frequency division multiplexing processing is performed on the signal and one channel of the dual-channel signal after frequency conversion processing to generate a multiplexed signal, and the other part of the transmission signal and network data signal is combined with the dual-channel signal after frequency conversion processing The signal of the other channel in the signal is subjected to frequency division multiplexing processing to generate another multiplexed signal, and then the two multiplexed signals are sent to the indoor antenna side processing device through the super-category five network cable;

The indoor antenna-side processing device 53 is used to perform frequency demultiplexing and multiplexing on the received two-way multiplexing signals sent by the network-side processing device 52 through the super five network cable, and separate the transmission signal, the network data signal and the frequency-converted For the processed dual-channel signal, perform frequency inversion processing on the dual-channel signal processed through frequency conversion, restore the original frequency, and send the dual-channel signal, transmission signal and network data signal of the restored frequency to the indoor antenna side communication device 54;

The indoor antenna-side communication device 54 is configured to receive the dual-channel signal of the recovered frequency, the transmission signal and the network data signal sent by the indoor antenna-side processing device 53 .

further,

The indoor antenna side communication device 54 is also used to send dual-channel signals, transmission signals and network data signals;

The indoor antenna-side processing device 53 is also used to receive the dual-channel signal, transmission signal and network data signal sent by the indoor antenna-side communication device 54, perform frequency conversion processing on the dual-channel signal, and convert the transmission signal to the network data signal. Part of the data signal is frequency-division multiplexed with one of the two-channel signals after frequency conversion processing to generate a multiplexed signal, and the other part of the transmission signal and network data signal is combined with the frequency-converted signal The signal of another channel in the processed dual-channel signal is subjected to frequency division multiplexing processing to generate another multiplexed signal, and then the two-way multiplexed signal is sent to the network side processing device 52 through a super-category five network cable;

The network-side processing device 52 is also used to perform frequency division and multiplexing on the received two-way multiplexing signals sent by the indoor antenna-side processing device 53 through the super-category five network cable, and separate the transmission signal and the network data signal. and the frequency-conversion-processed dual-channel signal, perform inverse frequency processing on the frequency-conversion-processed dual-channel signal, restore the original frequency, and send the recovered frequency dual-channel signal, transmission signal and network data signal to the network side communication device 51 ;

The network-side communication device 51 is further configured to receive the dual-channel signal of the recovered frequency, the transmission signal and the network data signal sent by the network-side processing device 52 .

In practical application scenarios,

The network-side communication device 51 includes a radio frequency unit for sending/receiving dual-channel signals, a communication device for sending/receiving transmission signals, and a communication device for sending/receiving network data signals;

The indoor antenna side communication device 54 includes an antenna device for sending/receiving dual-channel signals and transmission signals, and a communication device for sending/receiving network data signals.

Specifically, the radio frequency unit is specifically an RRU; and the dual-channel signal is specifically a dual-channel signal of an LTE standard.

Compared with the prior art, the technical solution proposed by the embodiment of the present invention has the following advantages:

By applying the technical solution proposed by the embodiment of the present invention, by performing frequency conversion processing on the dual-channel signals of the base station, and performing frequency division multiplexing processing on the signals of the two channels with the transmission signal and the network data signal respectively, the Therefore, the dual-channel signal transmission of the base station is carried out through the widely deployed CAT5E network cable, which simplifies the line deployment procedure for indoor network coverage, improves the quality of indoor network coverage, and reduces the corresponding cost input.

Through the above description of the implementation manners, those skilled in the art can clearly understand that the embodiments of the present invention can be implemented by hardware, or by means of software plus a necessary general hardware platform. Based on such understanding, the technical solutions of the embodiments 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.), Several instructions are included to enable a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the methods described in various implementation scenarios of the embodiments of the present invention.

Those skilled in the art can understand that the drawing is only a schematic diagram of a preferred implementation scenario, and the modules or processes in the drawing are not necessarily necessary for implementing the embodiments of the present invention.

Those skilled in the art can understand that the modules in the devices in the implementation scenario can be distributed among the devices in the implementation scenario according to the description of the implementation scenario, or can be located in one or more devices different from the implementation scenario according to corresponding changes. The modules of the above implementation scenarios can be combined into one module, or can be further split into multiple sub-modules.

The serial numbers of the above embodiments of the present invention are for description only, and do not represent the pros and cons of the implementation scenarios.

The above disclosures are only a few specific implementation scenarios of the embodiments of the present invention, but the embodiments of the present invention are not limited thereto, and any changes conceivable by those skilled in the art should fall within the scope of business restrictions of the embodiments of the present invention .

Claims (24)

1. a method for the signal of indoor distributed system transmission, is characterized in that, comprises the following steps:

In the time that treatment facility receives the double-channel signal of network equipment transmission of local terminal, described double-channel signal is carried out to frequency-conversion processing;

The signal of a passage in a part of signal in signal transmission and network data signals and the double-channel signal after frequency-conversion processing is carried out frequency division multiplexing processing by described treatment facility, generate a road multiplexed signals, and the signal of another passage in another part signal in signal transmission and network data signals and the double-channel signal after frequency-conversion processing is carried out to frequency division multiplexing processing, generate another road multiplexed signals;

Described treatment facility sends to two-way multiplexed signals the treatment facility of opposite end by surpassing five class netting twines;

Wherein, described signal transmission comprises the multi-signal type in order to ensure that indoor network coverage is required.

2. the method for claim 1, is characterized in that, described treatment facility sends to described two-way multiplexed signals the treatment facility of opposite end by surpassing five class netting twines, specifically comprise:

Described treatment facility working load balancing technique sends to described two-way multiplexed signals respectively the treatment facility of opposite end by surpassing different heart yearn in five class netting twines.

3. the method for claim 1, is characterized in that, described treatment facility by surpassing after five class netting twines send to the treatment facility of opposite end, also comprises described two-way multiplexed signals:

The treatment facility of described opposite end receives the two-way multiplexed signals that described treatment facility sends by surpassing five class netting twines;

The treatment facility of described opposite end carries out respectively frequency division demultiplexing to described two-way multiplexed signals, isolates signal transmission, network data signals and the double-channel signal through frequency-conversion processing;

The treatment facility of described opposite end, to carry out contrary frequency-conversion processing through the double-channel signal of frequency-conversion processing, recovers original frequency;

The double-channel signal, signal transmission and the network data signals that recover frequency are sent to the corresponding network equipment in opposite end by the treatment facility of described opposite end.

4. the method as described in any one in claims 1 to 3, is characterized in that, described treatment facility is installed on domestic aerial side and/or network side.

5. method as claimed in claim 4, is characterized in that,

In the time that described treatment facility is installed on domestic aerial side, the network equipment of described local terminal is specially and is deployed in indoor antenna equipment;

In the time that described treatment facility is installed on network side, the network equipment of described local terminal is specially RRU.

6. the method as described in any one in claims 1 to 3, is characterized in that, described double-channel signal is specially the double-channel signal of LTE standard.

7. the method as described in any one in claims 1 to 3, is characterized in that, described signal transmission at least comprises one or more in synchronizing signal, pilot signal and power supply signal.

8. method as claimed in claim 7, it is characterized in that, the signal of a passage in a part of signal in signal transmission and network data signals and the double-channel signal after frequency-conversion processing is carried out frequency division multiplexing processing by described treatment facility, is specially: the signal of a passage in synchronizing signal, pilot signal and the double-channel signal after frequency-conversion processing is carried out frequency division multiplexing processing by described treatment facility;

The signal of another passage in another part signal in signal transmission and network data signals and the double-channel signal after frequency-conversion processing is carried out to frequency division multiplexing processing, be specially: the signal of another passage in power supply signal, network data signals and the double-channel signal after frequency-conversion processing is carried out to frequency division multiplexing processing.

9. a treatment facility, is characterized in that, comprising:

Local terminal communication module, the double-channel signal sending for receiving the network equipment of local terminal;

Frequency-variable module, for receive when described local terminal communication module local terminal the network equipment send double-channel signal time, described double-channel signal is carried out to frequency-conversion processing;

Multiplexing module, for the signal of a passage in a part of signal of signal transmission and network data signals and the double-channel signal after described frequency-variable module frequency-conversion processing is carried out to frequency division multiplexing processing, generate a road multiplexed signals, and the signal of another passage in another part signal in signal transmission and network data signals and the double-channel signal after described frequency-variable module frequency-conversion processing is carried out to frequency division multiplexing processing, generate another road multiplexed signals;

Opposite end communication module, for sending to the two-way multiplexed signals of described Multiplexing module generation the treatment facility of opposite end by surpassing five class netting twines;

Wherein, described signal transmission comprises the multi-signal type in order to ensure that indoor network coverage is required.

10. treatment facility as claimed in claim 9, is characterized in that, described opposite end communication module, specifically for:

Working load balancing technique sends to described two-way multiplexed signals respectively the treatment facility of opposite end by surpassing different heart yearn in five class netting twines.

11. treatment facilities as claimed in claim 9, is characterized in that,

Described opposite end communication module, the two-way multiplexed signals also sending by surpassing five class netting twines for receiving the treatment facility of described opposite end;

Described Multiplexing module, also carries out respectively frequency division demultiplexing for the two-way multiplexed signals that described opposite end communication module is received, and isolates signal transmission, network data signals and the double-channel signal through frequency-conversion processing;

Described frequency-variable module, also, for the isolated double-channel signal through frequency-conversion processing of described Multiplexing module is carried out to contrary frequency-conversion processing, recovers original frequency;

Described local terminal communication module, also sends to the corresponding network equipment for described frequency-variable module being recovered to the double-channel signal of frequency and the described Multiplexing module isolated signal transmission of institute and network data signals.

12. treatment facilities as described in any one in claim 9 to 11, is characterized in that, described treatment facility is installed on domestic aerial side and/or network side, and described double-channel signal is specially the double-channel signal of LTE standard;

In the time of described treatment facility domestic aerial side, the network equipment of described local terminal is specially and is deployed in indoor antenna equipment, and in the time that described treatment facility is installed on network side, the network equipment of described local terminal is specially RRU.

13. treatment facilities as described in any one in claim 9 to 11, is characterized in that, also comprise module be set, for arrange by signal transmission and network data signals are divided into two-part partition strategy;

Wherein, described signal transmission, at least comprises one or more in synchronizing signal, pilot signal and power supply signal.

The method of the signal transmission of 14. 1 kinds of indoor distributed systems, is characterized in that, comprises the following steps:

Treatment facility receives the treatment facility of opposite end by surpassing the two-way multiplexed signals of five class netting twines transmissions;

Described treatment facility carries out respectively frequency division demultiplexing to described two-way multiplexed signals, isolates signal transmission, network data signals and the double-channel signal through frequency-conversion processing;

Described treatment facility, to carry out contrary frequency-conversion processing through the double-channel signal of frequency-conversion processing, recovers original frequency;

The double-channel signal, signal transmission and the network data signals that recover frequency are sent to the corresponding network equipment by described treatment facility;

Wherein, described signal transmission comprises the multi-signal type in order to ensure that indoor network coverage is required.

15. methods as claimed in claim 14, is characterized in that, described treatment facility is installed on domestic aerial side and/or network side.

16. methods as claimed in claim 15, is characterized in that,

In the time that described treatment facility is installed on domestic aerial side, the corresponding network equipment specifically comprises and is deployed in indoor antenna equipment;

In the time that described treatment facility is installed on network side, the corresponding network equipment specifically comprises RRU.

17. methods as claimed in claim 14, is characterized in that, described double-channel signal is specially the double-channel signal of LTE standard.

18. methods as claimed in claim 14, is characterized in that, described signal transmission at least comprises one or more in synchronizing signal, pilot signal and power supply signal.

19. 1 kinds for the treatment of facilities, is characterized in that, comprising:

Opposite end communication module, the two-way multiplexed signals sending by surpassing five class netting twines for receiving the treatment facility of opposite end;

Multiplexing module, carries out respectively frequency division demultiplexing for the two-way multiplexed signals that described opposite end communication module is received, and isolates signal transmission, network data signals and the double-channel signal through frequency-conversion processing;

Frequency-variable module, for the isolated double-channel signal through frequency-conversion processing of described Multiplexing module is carried out to contrary frequency-conversion processing, recovers original frequency;

Local terminal communication module, sends to the corresponding network equipment for described frequency-variable module being recovered to the double-channel signal of frequency and the described Multiplexing module isolated signal transmission of institute and network data signals;

Wherein, described signal transmission comprises the multi-signal type in order to ensure that indoor network coverage is required.

20. treatment facilities as claimed in claim 19, is characterized in that, described treatment facility is installed on domestic aerial side and/or network side, and described double-channel signal is specially the double-channel signal of LTE standard;

In the time of described treatment facility domestic aerial side, the corresponding network equipment specifically comprises and is deployed in indoor antenna equipment, and in the time that described treatment facility is installed on network side, the corresponding network equipment specifically comprises RRU;

Wherein, described signal transmission, at least comprises one or more in synchronizing signal, pilot signal and power supply signal.

The system of the signal transmission of 21. 1 kinds of indoor distributed systems, is characterized in that, comprising:

Network side communication apparatus, for sending double-channel signal, signal transmission and network data signals;

Network side treatment facility, for receiving the double-channel signal that described network side communication apparatus sends, signal transmission and network data signals, described double-channel signal is carried out to frequency-conversion processing, the signal of a passage in a part of signal in signal transmission and network data signals and the double-channel signal after frequency-conversion processing is carried out to frequency division multiplexing processing, generate a road multiplexed signals, and the signal of another passage in another part signal in signal transmission and network data signals and the double-channel signal after frequency-conversion processing is carried out to frequency division multiplexing processing, generate another road multiplexed signals, afterwards two-way multiplexed signals is sent to domestic aerial side treatment facility by surpassing five class netting twines,

Domestic aerial side treatment facility, for the described network side treatment facility receiving is carried out respectively to frequency division demultiplexing by the two-way multiplexed signals that surpasses five class netting twines transmissions, isolate signal transmission, network data signals and the double-channel signal through frequency-conversion processing, to carry out contrary frequency-conversion processing through the double-channel signal of frequency-conversion processing, recover original frequency, and the double-channel signal, signal transmission and the network data signals that recover frequency are sent to domestic aerial side communication equipment;

Described domestic aerial side communication equipment, for receiving double-channel signal, signal transmission and the network data signals of the recovery frequency that described domestic aerial side treatment facility sends;

Wherein, described signal transmission comprises the multi-signal type in order to ensure that indoor network coverage is required.

22. systems as claimed in claim 21, is characterized in that,

Described domestic aerial side communication equipment, also for sending double-channel signal, signal transmission and network data signals;

Described domestic aerial side treatment facility, the double-channel signal also sending for receiving described domestic aerial side communication equipment, signal transmission and network data signals, described double-channel signal is carried out to frequency-conversion processing, the signal of a passage in a part of signal in signal transmission and network data signals and the double-channel signal after frequency-conversion processing is carried out to frequency division multiplexing processing, generate a road multiplexed signals, and the signal of another passage in another part signal in signal transmission and network data signals and the double-channel signal after frequency-conversion processing is carried out to frequency division multiplexing processing, generate another road multiplexed signals, afterwards two-way multiplexed signals is sent to network side treatment facility by surpassing five class netting twines,

Described network side treatment facility, also for the described domestic aerial side treatment facility receiving is carried out respectively to frequency division demultiplexing by the two-way multiplexed signals that surpasses five class netting twines transmissions, isolate signal transmission, network data signals and the double-channel signal through frequency-conversion processing, to carry out contrary frequency-conversion processing through the double-channel signal of frequency-conversion processing, recover original frequency, and the double-channel signal, signal transmission and the network data signals that recover frequency are sent to network side communication apparatus;

Described network side communication apparatus, also for receiving double-channel signal, signal transmission and the network data signals of the recovery frequency that described network side treatment facility sends.

23. systems as claimed in claim 21, is characterized in that,

Described network side communication apparatus, comprises the radio frequency unit of sending/receiving double-channel signal, the communication equipment of sending/receiving signal transmission, and the communication equipment of sending/receiving network data signals;

Described domestic aerial side communication equipment, comprises the antenna equipment of sending/receiving double-channel signal and signal transmission and the communication equipment of sending/receiving network data signals.

24. systems as claimed in claim 23, is characterized in that,

Described radio frequency unit, is specially RRU;

Described double-channel signal, is specially the double-channel signal of LTE standard.