JP2621801B2 - Wireless communication system - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a radio communication system, and more particularly to a radio communication system having a plurality of working lines. A first terminal multiplexing method for terminating and multiplexing, terminating and multiplexing all of the section overhead,
In addition, the present invention relates to a wireless communication system in which a second terminal multiplexing system for switching to a synchronous network clock signal is mixed for each line.

[0002]

2. Description of the Related Art A broadband service integrated digital network (B-
To realize the ISDN (Broadband aspects of ISDN), the International Telegraph and Telephone Consultative Committee (CCITT) has established a Synchronous Digital Hierarchy (SDH) as an internationally unified digital hierarchy.
tal Hierarchy) has been standardized (CCITT recommendation G.
707-G. 709).

According to this recommendation, there are three AU-3s (Administrative Units) with a transmission rate of 50 Mbps and a section overhead (SOH: Section Ov).
Synchronous Transport Module Level 1 (STM-1) comprising SAU added to AU-4 having a transmission rate of 150 Mbps.
A multiplexed signal having a transmission rate of 150 Mbps called le Level 1) is used as a reference interface.

As a multiplexing device for transmitting the STM-1 signal or an STM-N signal obtained by multiplexing the STM-1 signal, a standard multiplexing device as shown in FIG. 782). Note that N is 1
Since these are natural numbers and the STM-1 signal is included in the STM-N signal, the STM-1 signal including the STM-1 signal will be described below.
-N signal.

[0005] In FIG. 8, two STM-N signals input via a transmission path are respectively connected to an SDH physical interface (SPI) circuit 71a,
71b and RST (Regenerator Section Te)
rmination) 72a, 72b and the MST unit (MST: Mul
MSP section (MSP: Multiplex Section Protec) via tiplex section termination (73p) and 73b separately.
) 74, in which redundant system switching in a multiple section (MS) section is performed.

The output signal of the MSP circuit 74 is an SA circuit (S
A: Section Adaptation (85), the transfer to the synchronous network clock signal and the pointer processing of AU-3 or AU-4 (hereinafter referred to as AU-3 / 4 pointer processing) are performed, and then the MSP circuit 76 and the MST 77. , RST78
And an STM-N signal multiplexed onto the transmission path via the SPI circuit 79. The above AU
AU-3 or AU-3 by -3/4 pointer processing
The pointer value is set so as to point to the head position of three or one virtual container (VC: Virtual Container) that constitutes -4. This pointer is included in the SOH.

According to this multiplexing device, all of the SOHs contained in the input STM-N signal are terminated and multiplexed, and
A transfer to a synchronous network clock signal is performed (this multiplexing method is referred to as an MST termination multiplexing method).

As another device for transmitting an STM-N signal, a standard relay device as shown in FIG. 9 has been proposed (CCITT recommendation G.958). In the figure, an STM-N signal input via a transmission path is an SPI
It is sequentially supplied to RSTs 82 and 83 via a circuit 81, where only part of the SOH is terminated and multiplexed,
The data is transmitted to the transmission path via the SPI circuit 84. According to this relay device, only a part of the SOH included in the STM-N signal is terminated and multiplexed (this multiplexing method is
It is called a terminal multiplexing method. ).

Therefore, conventionally, the two terminal multiplexing systems, the MST terminal multiplexing system and the RST terminal multiplexing system, may be mixed, and in such a case, the configuration is as shown in FIG. FIG. 10 shows a configuration diagram of an example of a conventional wireless communication system. In this conventional system, a wireless transmitting end station 90 and a wireless receiving end station 100
And the wireless transmitting end station 90 has an MST termination circuit 91.
a and 91b, a wireless multiplex processing circuit 92, an RST termination circuit 93, and a wireless multiplex processing circuit 94. In addition, the wireless receiving end station 100 includes an MST wireless termination processing circuit 101 and MST multiplexing circuits 102a and 102b.
And an RST wireless termination processing circuit 103 and an RST multiplexing circuit 104.

[0010] The wireless transmitting end station 90 has a relay section (RS).
The STM-N signal 301 in the section is RST-terminated by the RST termination circuit 93, and the RST-terminated signal 3
02 is a section for a wireless section accessed by the RST wireless multiplexing circuit 94 by the RST termination multiplexing method.
Multiplex processing of the overhead (RSOH) is performed, and the result is output as a wireless signal 303.

[0011] Further, the wireless transmitting end station 90 terminates the STM-N signal 311 in the MS section inputted through the working line by the MST termination circuit 91a.
The MST terminating circuit 91b responds to the MST terminating circuit 91b with respect to the MS section STM-N signal 311 'input via the protection line.
Then, the signals 312 and 312 ′ obtained by terminating the MST are supplied to the radio multiplex processing circuit 92.

The radio multiplex processing circuit 92 receives the input signal 312
And 312 'are switched to a redundant system, switched to a synchronous network clock signal, and AU-3 / 4 pointer processing, MST
A multiplexing process of section overhead (MSOH) for a wireless section accessed by the terminal multiplexing method and a multiplexing process of RSOH for a wireless section are performed, and an obtained signal 313 is output as a wireless signal.

The wireless receiving end station 100 receives the wireless signal 303 in the RS section by the wireless
Termination is performed, and the resulting signal 314 is subjected to R
The ST multiplexing circuit 104 multiplexes the RSOH to generate an STM-N signal 316 in the RS section, and outputs this.

The radio receiving end station 100 receives the radio signal 313 in the MS section by the radio termination processing circuit 101, performs MST termination, further switches to a synchronous network clock, and performs AU-3 / 4 pointer processing. Is performed on the signals 315 and 315 'obtained by the MST multiplexing circuit 10
In 2a and 102b, MSOH and RSOH are multiplexed to generate STM-N signals 317 and 317 'in the MS section, which are output.

[0015]

However, in the above-mentioned conventional wireless communication system, the termination circuit and the multiplex circuit are different between the working line of the RST termination multiplexing system and the working line of the MST termination multiplexing system. Is difficult, the wireless multiplex processing circuit 102 is dedicated to the MST, and the wireless multiplex processing circuit 1
04 is dedicated to the RST, and similarly, the wireless termination processing circuit 11
1 is dedicated to the MST, whereas the wireless termination processing circuit 113 is
Is for RST only. For this reason, conventionally, when the working line of the MST termination multiplexing system is changed to the working line of the RST termination multiplexing system, or conversely, the working line of the RST termination multiplexing system is
When changing to the working line of the T-termination multiplex system, it is necessary to replace the circuit entirely or to physically mount the pair of the termination circuit and the multiplex circuit in consideration of the two termination multiplex systems, There is a problem that the efficiency is very low both economically and implementationally.

The present invention has been made in view of the above points,
It is an object of the present invention to provide a wireless communication system capable of easily coping with a change in the working line even when working lines of different termination multiplex systems are mixed.

[0017]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides a wireless transmitting terminal comprising first and second terminating circuits;
The first and second wireless multiplexing processing circuits have the same configuration, and the wireless receiving end station has the first and second wireless termination processing circuits and the first and second multiplexing circuits having the same configuration. It is configured.

Here, the first terminating circuit is provided with a first terminating multiplexing method in which a multiplexed signal in which maintenance management information is multiplexed on data is inputted, and only a part of the maintenance management information is terminated and multiplexed. In addition to the termination, first circuit information indicating that the termination is performed by the first termination multiplexing method is output. The second terminating circuit receives the multiplexed signal, terminates the second terminal multiplexing method in which all of the maintenance management information is terminated and multiplexed, and terminates the signal in the second terminal multiplexing method. The second circuit information shown is output.

Further, the first wireless multiplex processing circuit includes:
An output signal of the first termination circuit and first circuit information are input, and multiplex processing is performed by selectively using a multiplex processing circuit unit based on the first termination multiplexing method based on the first circuit information, and the transmission output is obtained. The second wireless multiplexing processing circuit receives the output signal of the second terminal circuit and the second circuit information, and based on the second circuit information, the multiplex processing circuit unit based on the second terminal multiplexing method. Only one of them is selected and multiplexed and transmitted and output. A wireless transmitting end station having a second wireless multiplexing processing circuit; and the first wireless terminal processing circuit receives a multiplexed signal from the wireless transmitting end station, and receives an external third circuit. The terminal circuit is selectively used based on the information, the received signal is terminated by the first terminal multiplexing method, and the second wireless terminal processing circuit receives the multiplexed signal from the wireless transmitting terminal station and receives the multiplexed signal from the outside. Selecting and using a termination circuit section based on the fourth circuit information of
The received signal is terminated by the second termination multiplexing method.

Further, the first multiplexing circuit receives the output signal of the first wireless termination processing circuit, multiplexes the output signal according to the first termination multiplexing method, and outputs the multiplexed signal. Information indicating the multiplexing is output as third circuit information, and the second multiplexing circuit receives the output signal of the second wireless termination processing circuit, multiplexes the signal according to the second termination multiplexing method, and outputs the result. At the same time, information indicating that the signals are multiplexed by the second terminal multiplexing method is output as fourth circuit information.

[0021]

According to the present invention, the first and second radio multiplexing circuits in the radio transmitting end station are connected to the first and second terminating circuits by the first and second terminating circuits.
All or a part of the circuit section is selectively used based on the first and second circuit information, so that a common circuit is used in any of the first and second terminal multiplexing systems. be able to. Similarly, the first and second wireless termination processing circuits in the wireless receiving station also perform all or part of the circuit unit based on the third and fourth circuit information from the first and second multiplexing circuits. Because we use it selectively,
The circuit configuration of the first and second wireless termination processing circuits can be shared.

The common use of the circuit configuration is particularly effective in a wireless communication system for transmitting and receiving a synchronous transmission module signal having a section overhead defined by a synchronous digital hierarchy as maintenance management information. The circuit section for switching to the synchronous network clock signal is invalidated by the first circuit information, and the second wireless multiplexing processing circuit causes the circuit section for switching to the synchronous network clock signal to be invalidated by the second circuit information. The first wireless terminal processing circuit is disabled by the third circuit information, and the second wireless terminal processing circuit is switched by the third wireless terminal processing circuit to the synchronous network clock signal. Can be realized by making the circuit unit performing the above-mentioned operation more effective by the fourth circuit information.

[0023]

Next, an embodiment of the present invention will be described. FIG. 1 shows a configuration diagram of an embodiment of the present invention. As shown in the figure, this embodiment is based on the CCITT Recommendation G. 707-
G. FIG. This is an example applied to a system for wirelessly transmitting and receiving STM-N signals conforming to 709, and comprises a wireless transmitting end station 10 and a wireless receiving end station 20 facing each other.

The radio transmitting end station 10 receives an RST terminating circuit 11, an MST terminating circuit 12a connected to the working line, an MST terminating circuit 12b connected to the protection line, and first and second radio multiplex processing circuits 13 and 14. It is configured. Here, as will be described later, the wireless multiplex processing circuits 13 and 14 have the same circuit configuration and use different circuit units.

On the other hand, the radio receiving end station 20 that receives the radio signal from the radio transmitting end station 10 includes first and second radio termination processing circuits 21 and 22, an RST multiplexing circuit 23,
It is composed of ST multiplex circuits 24a and 24b. As will be described later, the wireless terminal processing circuits 21 and 22 have the same circuit configuration and use different circuit units.

Next, the configuration of each of the constituent blocks in FIG. 1 will be described in further detail. The RST termination circuit 11 includes an SPI circuit 111 and an RST termination unit 112, as shown in FIG. The SPI circuit 111 receives the STM-N signal 31 in the RS section from a multiplex transmission device (not shown). The RST terminator 112 terminates the RSOH of the SOH in the input signal, outputs an RST termination signal 33, and outputs an RST termination signal indicating that the signal is an RST termination circuit.
The T terminal circuit information 34 is output.

The MST termination circuits 12a and 12 shown in FIG.
b has the same circuit configuration, and has a circuit configuration as shown by 12 in FIG. As shown in the drawing, the MST termination circuit 12 includes an SPI circuit 121, an RST termination unit 122,
An ST terminal 123 is provided. SPI circuit 1
21 is the STM of the MS section from the multiplex transmission device (not shown)
The -N signal 32 is input.

The RST terminating unit 122 is provided with the SOH in the input signal.
Is terminated. Also, the MST termination unit 1
Reference numeral 23 terminates the MSOH constituting the SOH in the input signal. Therefore, RSOH and M
The MST termination signal 35 in which the SOH is terminated is output, and the MST signal indicating that the SOH is the MST termination circuit.
Termination circuit information 36 is output.

The radio multiplex processing circuits 13 and 14 shown in FIG.
Have the same circuit configuration, and have the same circuit configuration as indicated by 13 in FIG. As shown in FIG. 4, the wireless multiplex processing circuit 13 includes an MSP unit 131, an SA circuit 132,
ST multiplexer 133, function selector 134, RST multiplexer 1
35 and an SPI circuit 136.

The MSP section 131 has two input signals 51 (the output signal 33 of the RST termination circuit 11 in the case of the wireless multiplex processing circuit 13 in FIG. 1, and the output signal 35 of the MST termination circuit 12a in the case of the wireless multiplex processing circuit 14) and 52 (the output signal 35 'of the MST termination circuit 12b in the case of the wireless multiplex processing circuit 14 of FIG. 1) is inputted, and the redundant system is switched in the MS section having the redundant configuration. The SA circuit 132 performs switching to a synchronous network clock signal and performs AU-3 / 4 pointer processing.
The MST multiplexing unit 133 performs multiplexing processing of the MSOH for the wireless section.

The function selecting section 134 includes an MST multiplexing section 133
One of the signal subjected to the above-described example of the MS section extracted from the above and the input signal 51 is selected based on the input termination circuit information 53 (33 and 36 in FIG. 1).
That is, when the input termination circuit information 53 indicates the RST termination circuit information, the function selection unit 134 outputs the input signal 51
Is selected and when indicating the MST termination circuit information, M
The output signal of ST multiplexing section 133 is selected. Therefore, when the input termination circuit information 53 indicates the RST termination circuit information, the function selection unit 134 sets the MSP unit 131 and the SA circuit 1
32 and the circuit operations of the MST multiplexing unit 133 are invalidated (masked).

The RST multiplexing unit 135 multiplexes the output signal of the function selecting unit 134 with the RSOH for the radio section. The SPI circuit 136 outputs the output signal of the RST multiplexing unit 135 as the STM-N signal 54 for the radio section.

The wireless terminal processing circuits 21 and 22 in the wireless receiving station 20 shown in FIG. 1 have the same configuration, for example, as shown in FIG. As shown in FIG. 5, the wireless termination processing circuit 21 (22) includes an SPI circuit 221 and an RST termination unit 22.
2, an MST termination unit 223, an SA circuit 224, and a function selection unit 225.

The SPI circuit 221 receives the radio section signal 56 (the STM-N signal 37 or 38 in FIG. 1) as an input signal and inputs the signal to the RST termination unit 222. RST termination unit 22
2 terminates the RSOH of the input signal. MST termination unit 22
3 terminates the MSOH of the input signal. Therefore, from the MST termination unit 223, a signal obtained by terminating all SOHs of the input wireless section signal 56 is extracted. The SA circuit 224 performs switching to a synchronous network clock signal and performs AU-3 / 4 pointer processing.

The function selecting section 225 is a part of the SOH of the signal subjected to the above-described example of the MS section extracted from the SA circuit 224 and a part of the SOH of the input wireless section signal 56 extracted from the RST terminating section 222 (ie, RSOH) is selected based on the input multiplex circuit information 59 (43 and 46 in FIG. 1).

That is, when the input multiplex circuit information 59 indicates the RST multiplex circuit information, the function selecting section 225
When the output signal of the RST terminator 222 is selected and the MST multiplex circuit information is indicated, the output signal of the SA circuit 224 is selected. Accordingly, when the input multiplex circuit information 59 indicates the RST multiplex circuit information,
The circuit operations of the ST termination unit 223 and the SA circuit 224 are invalidated (mask processing is performed).

The signal selected by the function selecting section 225 is a signal 57 (the signal 41 or 4 in FIG.
4) and the same wireless terminated signal 58
(Signal 44 'in FIG. 1).

The RST multiplexing circuit 23 in the wireless receiving station 20 shown in FIG. 1 is configured, for example, as shown in FIG. As shown in FIG. 6, the RST multiplexing circuit 23 includes an RST multiplexing unit 231.
And the SPI circuit 232, the terminated signal 41 is input, the RST multiplexing unit 231 multiplexes the RSOH, and the obtained STM-N signal 42 in the RS section is output via the SPI circuit 232. I do. Also, RS
T multiplexing circuit 23 is an RS indicating that it is an RST multiplexing circuit.
It is configured to output T multiplex circuit information 43.

Further, the MST multiplexing circuits 24a and 24a of FIG.
4b has the same configuration, for example, as shown at 24 in FIG. As shown in FIG.
Are the MST multiplexing section 241, the RST multiplexing section 242 and the SP
It is composed of an I circuit 243. MST multiplexing section 241
Receives the terminated signal 61 (signal 44 or 44 ′ in FIG. 1), performs MSOH multiplexing processing, and outputs the result to the RST multiplexing unit 242.

The RST multiplexing section 242 multiplexes the RSOH-multiplexed signal with the RSOH. SPI circuit 243 is RS
The output signal of T multiplexing section 242 is output as STM-N signal 62 (45 or 45 'in FIG. 1) in the MS section. Further, the MST multiplexing circuit 24 is configured to output MST multiplexing circuit information 63 indicating that the circuit is an MST multiplexing circuit.

Returning to FIG. 1 again, the radio transmitting end station 10 has a mixture of lines in the RS section and the MS section.
RST termination circuit 11 for the STM-N signal 31 in the section
Inputs the signal 33 obtained by the RST termination to the wireless multiplex processing circuit 13 together with the RST termination circuit information 34. On the other hand, the STM-N signal 3 in the MS section having the redundant configuration
For 2 and 32 ', the wireless transmitting end station 10 terminates the MST by MST termination circuits 12a and 12b, respectively, and inputs the obtained signals 35 and 35' to the wireless multiplex processing circuit 14 together with the MST termination circuit information 36. .

Each of the radio multiplex processing circuits 13 and 14 has the circuit configuration shown in FIG.
Is based on the RST termination circuit information 34 from the RST termination circuit 11, the function selection unit 134 selects the input signal 33 and
It is configured to directly input to ST multiplexing section 135. As a result, the radio multiplexing processing circuit 13 outputs the ST multiplexed by the RST termination multiplexing method in the same manner as in the relay apparatus shown in FIG.
The MN signal 37 is extracted.

The B-system input (input signal 5 in FIG. 4) of the radio multiplex processing circuit 13 in the case of supporting the RST termination multiplex system.
In 2), there is no input, but the alarm is suppressed by the RST termination circuit information 34 (53 in FIG. 4).

On the other hand, the wireless multiplexing processing circuit 14
Based on the MST termination circuit information 36 from the T termination circuits 12a and 12b, the function selection unit 134
Select the output signal of As a result, the wireless multiplexing processing circuit 14 outputs the MS as in the case of the standard multiplexing apparatus shown in FIG.
The STM-N signal 38 multiplexed by the T terminal multiplexing method is extracted.

The wireless receiving end station 20 receives the wireless signal 37 in the RS section.
And supplies it to the wireless termination processing circuit 21. The wireless terminal processing circuit 21 determines whether the function selection unit 225 of FIG.
The output signal of the ST termination unit 222 is selected.
The STM-N signal 41 terminated by ST termination multiplexing
The TOH signal is supplied to the T multiplexing circuit 23 where the RSOH is multiplexed.
An STM-N signal 42 in the RS section is output.

On the other hand, the received radio signal 38 of the MS section
Is supplied to the wireless termination processing circuit 22. The radio termination processing circuit 22 selects the output signal of the SA circuit 224 by the function selection unit 225 of FIG. 5 based on the wired or ORed MST multiplex circuit information 46 from the MST multiplex circuits 24a and 24b, and thereby the MST termination It terminates in a multiplex system and outputs STM-N signals 44 and 44 'which have been switched to a synchronous network clock signal and subjected to AU-3 / 4 pointer processing. The MST multiplexing circuits 24a and 24b receive the above signals 44 and 44 ', respectively,
Are multiplexed, and the STM-N signals 45 and 4 in the MS section are
5 'is output.

In the present embodiment, each of the radio multiplexing processing circuits 13 and 14 and the radio termination processing circuits 21 and 22 includes
The ST line multiplexing system and the MST line multiplexing working line are commonly used, and the RST line multiplexing system and the MST line
It is configured to be compatible with either of the terminal multiplexing systems. Therefore, according to the present embodiment, it becomes easy to mix the working line of the RST termination multiplexing system and the working line of the MST termination multiplexing system, and the change of the working line of one system to the working line of the other system becomes difficult. Wireless multiplex processing circuit 1 serving as a common unit
The above-mentioned change can be made much easier than in the prior art, since it can be performed by exchanging circuit parts other than the wireless terminal processing circuits 21 and 22 with the wireless terminal processing circuits 3 and 14.

The present invention is not limited to the above embodiment. For example, in the above embodiment, the working line of the RST termination multiplex system and the working line of the MST termination multiplex system are each one line. Of course, the present invention can be applied to a case where there are a plurality of working lines of the RST termination multiplex system and a plurality of working lines of the MST termination multiplex system.

[0049]

As described above, according to the present invention,
A common circuit can be used for multiplexing processing in any of the first and second terminal multiplexing systems, and the first and second wireless terminal processing circuits in the wireless receiving end station also have a common circuit configuration. Therefore, the change from one of the working lines of the first and second termination multiplexing systems to the other can be greatly facilitated as compared with the prior art, and therefore the first and second termination multiplexing systems can be changed. Even if the working lines of the system are mixed, it is possible to eliminate the restrictions on mounting.

[Brief description of the drawings]

FIG. 1 is a configuration diagram of an embodiment of the present invention.

FIG. 2 is a block diagram of an embodiment of an RST termination circuit of FIG. 1;

FIG. 3 is a block diagram of one embodiment of the MST termination circuit of FIG. 1;

FIG. 4 is a block diagram of one embodiment of the wireless multiplex processing circuit of FIG. 1;

FIG. 5 is a block diagram of one embodiment of the wireless termination processing circuit of FIG. 1;

FIG. 6 is a block diagram of one embodiment of the RST multiplexing circuit of FIG. 1;

FIG. 7 is a block diagram of one embodiment of the MST multiplexing circuit of FIG. 1;

FIG. 8 is a configuration diagram of a standard multiplexing device.

FIG. 9 is a configuration diagram of a standard relay device.

FIG. 10 is a configuration diagram of an example of a conventional wireless communication system.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 10 Radio transmitting end station 11 RST termination circuit 12, 12a, 12b MST termination circuit 13, 14 Radio multiplex processing circuit 20 Radio reception end station 21, 22 Radio termination processing circuit 23 RST multiplex circuit 24, 24a, 24b MST multiplex circuit 111, 121, 136, 221, 232, 243 S
PI circuits 112, 122, 222 RST termination section 123, 223 MST termination section 131 MSP section 132, 224 SA circuit 133, 241 MST multiplexing section 134, 225 Function selecting section 135, 231, 242 RST multiplexing section

Claims (2)

(57) [Claims] 1. A multiplexed signal in which maintenance management information is multiplexed on data is input, and terminated by a first terminal multiplexing method for terminating and multiplexing only part of the maintenance management information.
A first terminating circuit for outputting first circuit information indicating termination by the first terminating multiplexing method, and a second terminating circuit for receiving the multiplexed signal and terminating and multiplexing all of the maintenance management information. A second terminating circuit that terminates by the terminating multiplexing method and outputs second circuit information indicating termination by the second terminating multiplexing method; an output signal of the first terminating circuit; and a first circuit A first wireless multiplex processing circuit to which information is input, multiplexing processing is performed by selectively using a multiplex processing circuit unit based on the first termination multiplexing method based on the first circuit information, and transmission and output are performed; An output signal of the second termination circuit and second circuit information are input, and the second termination multiplexing is performed based on the second circuit information in the same circuit configuration as the first wireless multiplex processing circuit. Select and use only the multi-processing circuit part based on the method A wireless transmitting end station having a second wireless multiplexing processing circuit for performing multiplexing processing and transmitting and outputting; receiving a multiplexed signal from the wireless transmitting end station and terminating the multiplexed signal based on third circuit information from outside A first wireless termination processing circuit for selectively using a circuit unit and terminating a received signal according to the first termination multiplexing method; and a circuit having the same circuit configuration as the first wireless termination processing circuit. A second radio termination processing circuit that receives the multiplexed signal of the above, selects and uses a termination circuit unit based on external fourth circuit information, and terminates the reception signal according to the second termination multiplexing method, An output signal of the first wireless termination processing circuit is input, multiplexed by the first termination multiplexing method and output, and information indicating that the signal is multiplexed by the first termination multiplexing method is output to the third terminal multiplexing method. First multiplex output as circuit information And an output signal of the second wireless termination processing circuit is input, multiplexed and output by the second termination multiplexing method, and information indicating that the signal is multiplexed by the second termination multiplexing method is output to the terminal. A wireless receiving end station having a second multiplexing circuit for outputting as fourth circuit information. 2. The multiplexed signal is a synchronous transmission module signal having a section overhead defined by a synchronous digital hierarchy as the maintenance management information, and the second terminating circuit separates a working line and a protection line from each other. A plurality of circuits to which the synchronous transmission module signal is input in parallel via the first and second wireless multiplex processing circuits having the same circuit configuration, wherein the first wireless multiplex processing circuit is a synchronous network clock. The circuit section for performing the transfer to the signal is invalidated by the first circuit information, and the second wireless multiplexing processing circuit performs the circuit section for performing the transfer to the synchronous network clock signal by the second circuit information. The first wireless termination processing circuit of the first and second wireless termination processing circuits having the same circuit configuration is enabled, and the first wireless termination processing circuit performs switching to a synchronous network clock signal. The circuit section is invalidated by the third circuit information, and the second wireless termination processing circuit is enabled by the fourth circuit information for a circuit section for switching to a synchronous network clock signal. The wireless communication system according to claim 1, wherein