JP2003332949A - Communication apparatus and communication frequency determining method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve the problem that the conventional communication system determines an up- and down-link operating frequencies only in a training at initializing between a subscriber unit and a center apparatus, but there are regional differences such as about radio broadcasts and the time-varying noise deteriorates the signal to noise (S/N) ratio, resulting in the signal transfer speed down and/or the repetition of the re-initialization. <P>SOLUTION: A regional specific information input unit 21 inputs regional specific information. Based thereon, an unable frequency determiner 22 determines unusable frequencies, and an up-link operating frequency determiner 27 determines an up-link operating frequency. Thus, no frequency with noise is used to avoid dropping the signal transfer speed or repeating the re- initialization. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a communication device for performing high-speed communication on a metallic cable such as ADSL and a communication frequency determining method.

[0002]

2. Description of the Related Art A conventional communication system for performing high-speed communication on a metallic cable such as ADSL will be described below.
This will be specifically described with reference to FIGS.

FIG. 16 is a diagram showing the configuration of a conventional communication system. 161 is a subscriber unit, 162 is a center unit, and 1 is a center unit.
63 is a twisted pair wire.

FIG. 17 is a diagram showing the configuration of a conventional subscriber unit. 171 is an upstream transmission unit for transmitting an upstream signal, 172 is a downstream reception unit for receiving a downstream signal, and 173 is a downstream reception unit 1.
Downlink S / N ratio measuring section for measuring the signal-to-noise ratio (S / N ratio) of the signal received at 72, 174 is used for downlink according to the S / N ratio of each carrier measured at the downstream S / N ratio measuring section 173. A downlink use frequency information generation unit 175 that determines a frequency is an uplink use frequency determination unit that determines the uplink frequency to be used based on the uplink frequency information received by the downlink reception unit 172.

FIG. 18 is a diagram showing a configuration of a center device of a conventional example. 181 is an upstream receiving unit for receiving an upstream signal, and 182.
Is the signal-to-noise ratio of the signal received by the upstream receiver 181 (S
/ N ratio), an upstream S / N ratio measuring unit 183, an upstream use frequency information generation unit 183 that determines an upstream use frequency based on the S / N ratio of each carrier measured by the upstream S / N ratio measurement unit 182. Is a downlink use frequency determination unit that determines the downlink frequency to be used based on the downlink frequency information received by the uplink reception unit 181, and 185 is a downlink transmission unit that transmits the downlink signal.

FIG. 19 is a diagram showing the structure of a carrier wave used in a conventional communication system. 1911 to 191n are carrier waves for transmitting upstream signals, and 1921 to 192n are carrier waves for transmitting downstream signals.

The subscriber unit 161 and the center unit 1 will be described below.
The operation of determining the used frequency between 62 will be described.

The subscriber unit 161 has an upstream carrier 19 for transmitting an upstream signal on the twisted pair 163 by the upstream transmitter 171.
A signal is transmitted to each of 11 to 191n with the maximum transmittable power.

The center device 162 includes an upstream receiver 181.
Thus, the carrier waves 1911 to 191n are received. Each of the received carrier waves 1911 to 191n is sent to the upstream S / N ratio measuring section 182, where unnecessary electromagnetic noise (electromagnetic interference (EMI, that is, noise) in the background such as copper wire and radio frequency broadcasting) against the strength of the received signal is generated. Next, in the upstream use frequency information generation unit 183, each upstream carrier wave 191 measured by the upstream S / N ratio measurement unit 182 is measured.
For the S / N ratio of 1 to 191n, it is determined whether or not to use as the upstream frequency, and the determined upstream use frequency information is generated. The generated uplink used frequency information is transmitted to the twisted pair wire 163 by the downlink transmitter 185. Further, the uplink receiving unit 181 receives downlink used frequency information.
The downlink used frequency determination unit 184 determines the downlink used frequency from the received downlink used frequency information, and the downlink transmission unit 1
Notify 85. The downlink transmission unit 185 transmits a signal using the notified carrier wave of the used frequency.

Further, the center device 162 transmits a signal with the maximum transmittable power to each of the downlink carriers 1921 to 192n for transmitting the uplink signal of the twisted pair wire 163 by the downlink transmitter 185.

The subscriber unit 161 receives the carriers 1921 to 192n by the downlink receiving unit 172. A downlink S / N ratio measuring section 173 measures the amount of unnecessary electromagnetic noise for each received carrier wave 1921 to 192n with respect to the strength of the received signal. Next, the downlink use frequency information generation unit 174 determines whether to use as the downlink frequency for the S / N ratio of each of the downlink carriers 1921 to 192n measured by the downlink S / N ratio measurement unit 173. Then, the determined downlink use frequency information is generated. The generated downlink use frequency information is transmitted by the uplink transmission unit 171 to the twisted pair 1
Send to 63. Further, the downlink receiving section 172 receives the uplink used frequency information. Uplink frequency determining unit 17
5, the uplink use frequency is determined from the received uplink use frequency information, and the uplink use frequency is notified to the uplink transmitter 171. The upstream transmission unit 171 transmits a signal using the notified carrier wave of the used frequency.

In this way, the up and down frequencies used are determined, and signals are transmitted and received between the subscriber unit 161 and the center unit 162.

[0013]

However, in the conventional communication system as described above, the up and down frequencies to be used are determined only by the training at the time of initialization. There has been a problem that the signal transfer rate is lowered and the re-initialization is repeated with respect to noise that fluctuates with time such as equipment.

In view of the above problems, the present invention determines a frequency to be used for a noise source having a regional characteristic such as a radio broadcast based on the region specifying information, so that the noise having a regional characteristic and temporally varying. It is an object of the present invention to provide a highly reliable communication device and communication system which prevent a decrease in signal transfer rate and re-initialization due to the above.

[0015]

In order to solve the above-mentioned problems, the invention of claim 1 uses frequency information determining means for determining frequency information to be used from the inputted region specifying information and region frequency information. And signal transmission frequency determining means for determining one or more signal transmission frequencies based on the determined use frequency information, and signal transmitting means for performing signal transmission based on the determined signal transmission frequencies, It is a communication device for transmitting the used frequency information from a signal transmitting means.

With this configuration, it is possible to extract the used frequency information according to the area, and since the frequency having noise is not used during signal transmission, it is possible to prevent the decrease of the signal transfer rate and the re-initialization, and to inform the communication partner. However, it becomes possible to pass the information and to avoid signal reception at a frequency having noise.

The invention according to claim 2 is the communication device according to claim 1, wherein the area specifying information is an address input by a user.

The invention according to claim 3 is the communication device according to claim 1, wherein the area specifying information is a telephone number input by a user.

The invention according to claim 4 is the communication device according to claim 1, wherein the area specifying information is a postal code input by a user.

Further, the invention of claim 5 is the communication apparatus according to claim 1, wherein the area specifying information is information obtained from GPS.

The invention according to claim 6 is the communication apparatus according to claim 1, wherein the area specifying information is transmitted from a communication partner.

The invention according to claim 7 is the communication device according to claim 1, characterized in that the frequency information for each region is received from another connected information providing communication device.

Further, the invention of claim 8 is the communication apparatus according to claim 1, wherein the used frequency information is information of unusable frequencies.

The invention according to claim 9 is the signal receiving means, the signal transmitting frequency determining means for determining one or a plurality of signal transmitting frequencies based on the used frequency information received by the signal receiving means, and the determined said. And a signal transmitting means for transmitting a signal based on a signal transmission frequency.

With this configuration, since the used frequency information can be received and the signal can be transmitted at a frequency other than the frequency having noise, it is possible to prevent a decrease in the signal transfer rate and re-initialization in the signal transmission.

According to the invention of claim 10, the used frequency information received by the signal receiving means is used frequency information transmitted from another communication device according to any one of claims 1 to 8. The communication device according to claim 9, wherein

The invention of claim 11 is a method of determining a communication frequency, comprising: the first communication device according to claim 1; and the second communication device according to claim 9 connected to the first communication device. In the communication frequency determining method, the second communication device determines a signal transmission frequency based on the use frequency information transmitted by the first communication device.

With this configuration, it is possible to perform signal transmission / reception while avoiding a frequency having noise based on the area specifying information.

The invention of claim 12 is the signal transmission speed from the first communication device to the second communication device, and the signal transmission speed from the second communication device to the first communication device. 12. The communication frequency determining method according to claim 11, characterized in that

The invention according to claim 13 is the first communication device according to claim 1, the second communication device according to claim 9 connected to the first communication device, and the second communication device. In the communication frequency determining method including an information providing communication device connected to a communication device, the information providing communication device has information in which the first communication device corresponds or does not correspond to a frequency control target, and the second communication The device determines a signal transmission frequency based on the use frequency information when the frequency control target information from the information providing communication device is applicable, and the use when the frequency control target information is not applicable It is a communication frequency determination method characterized by determining a signal transmission frequency without using frequency information.

With this configuration, it is possible to decide whether or not to use the used frequency information depending on whether the communication partner corresponds to the controlled object or not, so that it is possible to do business in which only the registered communication device can receive the service. Become.

The invention according to claim 14 is the first communication device according to claim 1, the second communication device according to claim 9 connected to the first communication device, and the second communication device. In a communication frequency determining method including an information providing communication device connected to a communication device, the frequency information for each area, the use frequency information determining means, or the signal transmission frequency in the first communication device or the second communication device The communication frequency determining method is characterized in that the determining means is received from the information providing communication device.

[0033]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings.

(Embodiment 1) FIG. 1 is a diagram showing the configuration of a communication system according to Embodiment 1 of the present invention. 11 is a subscriber unit, 12 is a center unit, and 13 is a twisted pair.

FIG. 2 is a diagram showing the configuration of the subscriber device according to the first embodiment of the present invention. Reference numeral 21 is an area identification information input section for inputting area identification information, and 22 is an area classification based on the input area identification information. Unusable frequency determining unit that determines an unusable frequency from the unusable frequency table of the above, 23 is an upstream transmitting unit that transmits an upstream signal, 24 is a downstream receiving unit that receives a downstream signal, and 25 is a downstream receiving unit. Downlink S / N ratio measuring section for measuring the signal-to-noise ratio (S / N ratio) of the signal received by 24, and 26 is used for downlink according to the S / N ratio of each carrier measured by the downstream S / N ratio measuring section 25. A downlink use frequency information generation unit that determines the frequency, and 27 is an uplink use frequency determination unit that determines the uplink frequency to be used based on the region identification information input unit 21 and the uplink frequency information received by the downlink reception unit 24.

FIG. 3 is a diagram showing the configuration of the center apparatus according to the first embodiment of the present invention, in which 31 is an upstream receiving section for receiving an upstream signal, 32 is a signal-to-noise ratio (S) of the signal received by the upstream receiving section 31. / N ratio) for measuring the upstream S / N ratio, and 33 for the upstream use frequency information generation unit for determining the allocation of the upstream use frequency based on the S / N ratio of each carrier measured by the upstream S / N ratio measurement unit 32. , 34 is a downlink use frequency determining unit that determines a downlink frequency to be used based on the downlink frequency information received by the uplink receiving unit 31, and 35 is a downlink transmitting unit that transmits a downlink signal.

FIG. 4 is a diagram showing the structure of a carrier wave used in the communication system according to the first embodiment of the present invention. The horizontal axis represents frequency, 411 to 41n are carrier waves for transmitting upstream signals, and 42 is a carrier wave.
1 to 42n are carrier waves for transmitting downlink signals, 431 and 43
2 is a frequency band used in radio broadcasting.

FIG. 5 is a diagram showing the structure of the area specifying information input screen used in the subscriber unit according to the first embodiment of the present invention. Reference numeral 51 is address information, 52 is telephone number information, and 53 is postal code information. It should be noted that the area specifying information item in this figure may include any one item.

The subscriber device 11 and the center device 12 are described below.
The operation of determining the frequency to be used in between will be described with reference to FIGS.

The subscriber device 11 uses the area specifying information input screen by the subscriber to input the area specifying information by the area specifying information input section 21. Area specific information input section 2
The area specific information input by 1 is notified to the unusable frequency determining unit 22, and the radio frequency 43 corresponding to the area is notified.
Unusable frequencies 412, 413, 42 from 1,432
2, 423 is determined and the unusable information is notified to the upstream transmission unit 23. The upstream transmission unit 23 uses the upstream unusable frequencies 412 and 41 from the unusable frequency determination unit 22.
Carrier wave 411 for transmitting upstream signals of twisted pair wire 13 other than 3
Each of ~ 41n transmits a signal with the maximum transmittable power and transmits unusable frequency information.

The center device 12 receives the carrier waves 411 to 41n by the upstream receiver 31. Each of the received carrier waves 411 to 41n is measured by the upstream S / N ratio measuring section 32 to measure the amount of unnecessary electromagnetic noise with respect to the strength of the received signal. Next, the upstream use frequency information generation unit 33 determines whether or not to use the upstream carrier frequency 411 to 41n S / N ratio measured by the upstream S / N ratio measurement unit 32 as an upstream frequency. Then, the determined uplink use frequency information is generated. The generated uplink used frequency information is transmitted to the twisted pair wire 13 by the downlink transmitter 35. Further, the upstream receiving unit 31 receives the unusable frequency information and the downstream usage frequency information. The downlink use frequency determination unit 34 determines the downlink use frequency from the received unusable frequency information and the received downlink use frequency information, and notifies the downlink transmission unit 35 of it. The downlink transmitter 35 transmits a signal using the notified carrier wave of the used frequency.

Similarly, in the center device 12, the downlink transmission unit 35 transmits the downlink signals of the twisted pair wire 13 other than the unusable frequencies 422 and 423 received by the uplink reception unit 31, respectively. The signal is transmitted with the maximum power that can be transmitted.

The subscriber unit 11 receives the carriers 421 to 42n by the downlink receiving unit 24. The downlink S / N ratio measuring unit 25 measures the amount of unnecessary electromagnetic noise for each received carrier wave 421 to 42n with respect to the strength of the received signal. Next, in the downlink use frequency information generation unit 26,
For the S / N ratio of each of the downlink carriers 421 to 42n measured by the downlink S / N ratio measuring unit 25, it is determined whether or not to use as the downlink frequency, and the determined downlink use frequency information is generated. The generated downlink use frequency information is transmitted to the twisted pair wire 13 by the uplink transmitter 23. Also,
The downlink receiving unit 24 receives the uplink used frequency information. The uplink use frequency determination unit 27 determines the uplink use frequency from other than the received uplink use frequency information and the unusable frequency information from the unavailable frequency determination unit 22, and notifies the uplink transmission unit 23 of it. The upstream transmission unit 23 transmits a signal using the notified carrier wave of the used frequency.

Although the address, telephone number, and zip code are used as the area specifying information in the embodiment, any information can be used as long as the information can identify the area.

In this way, the up and down frequencies used are determined and signals are transmitted and received between the subscriber unit 11 and the center unit 12.

As described above, according to the present embodiment, by determining the frequency to be used based on the area specifying information from the subscriber, there is a regional characteristic such as a radio frequency corresponding to the area, and it varies with time. It reduces the noise generated and enables communication with high transmission efficiency.

(Second Embodiment) FIG. 6 is a diagram showing the configuration of a communication system according to a second embodiment of the present invention. The same components as those in the communication system configuration diagram of the first embodiment are designated by the same reference numerals, and the description thereof will be omitted.

FIG. 7 is a diagram showing the configuration of a subscriber unit according to the second embodiment of the present invention, in which 71 is a radio wave receiving unit for receiving radio waves from a satellite, and 72 is a position calculated from the radio waves received by the radio wave receiving unit 71. A position calculator 73, an unusable frequency determiner 73 that determines an unusable frequency from the calculated area identification information, an upstream transmitter 74 that transmits an upstream signal, and a downstream receiver 75 that receives a downstream signal. , 76 is a downlink S / N ratio measuring section that measures the signal-to-noise ratio (S / N ratio) of the signal received by the downlink receiving section 75, and 77 is S of each carrier measured by the downlink S / N ratio measuring section 76. A downlink use frequency information generation unit that determines a downlink use frequency based on the / N ratio, and 78 is a position calculation unit 72.
And an upstream use frequency determination unit that determines an upstream frequency to be used based on the upstream frequency information received by the downstream reception unit 75.

FIG. 8 is a diagram showing the configuration of the center device according to the second embodiment of the present invention. The same components as those of the center device configuration diagram of the first embodiment are designated by the same reference numerals, and the description thereof will be omitted.

FIG. 9 is a diagram showing a structure of a carrier wave used in the communication system according to the second embodiment of the present invention. The first
In the configuration of the carrier wave used in the communication system according to the embodiment, the same components as those in the configuration diagram are denoted by the same reference numerals and the description thereof will be omitted.

The subscriber device 11 and the center device 12 are described below.
The operation of deciding the frequency to be used in between will be described with reference to FIGS. 6 to 9.

The subscriber unit 11 uses the GPS (Global Positioning) in the radio wave receiving section 71.
System) of 24 satellites,
It receives radio waves from the three satellites that are most easily received. The position calculation unit 72 calculates the position from the received radio wave. The area specifying information calculated by the position calculating section 72 is notified to the unusable frequency determining section 73, and the unusable frequency 41 is changed from the radio frequencies 431 and 432 corresponding to the area.
2, 413, 422, and 423 are determined, and the upstream transmission unit 74 is notified as unusable information. Upstream transmission unit 74
While transmitting the signal with the maximum transmittable power by each of the carriers 411 to 41n that transmit the upstream signals of the twisted pair wire 13 other than the upstream unusable frequencies 412 and 413 from the unusable frequency determination unit 73, Transmit unusable frequency information.

The center device 12 receives the carrier waves 411 to 41n by the upstream receiver 31. Each of the received carrier waves 411 to 41n is measured by the upstream S / N ratio measuring section 32 to measure the amount of unnecessary electromagnetic noise with respect to the strength of the received signal. Next, the upstream use frequency information generation unit 33 determines whether or not to use the upstream carrier frequency 411 to 41n S / N ratio measured by the upstream S / N ratio measurement unit 32 as an upstream frequency. Then, the determined uplink use frequency information is generated. The generated uplink used frequency information is transmitted to the twisted pair wire 13 by the downlink transmitter 35. Further, the upstream receiving unit 31 receives the unusable frequency information and the downstream usage frequency information. The downlink use frequency determination unit 34 determines the downlink use frequency from the received unusable frequency information and the received downlink use frequency information, and notifies the downlink transmission unit 35 of it. The downlink transmitter 35 transmits a signal using the notified carrier wave of the used frequency.

Similarly, in the center device 12, the downlink transmission section 35 transmits each of the carriers 421 to 42n for transmitting the downlink signals of the twisted pair wire 13 other than the downlink unusable frequencies 422 and 423 received by the uplink reception section 31. The signal is transmitted with the maximum transmittable power.

The subscriber device 11 receives the carriers 421 to 42n by the downlink receiver 75. The downlink S / N ratio measuring unit 76 measures the amount of unnecessary electromagnetic noise for each received carrier wave 421 to 42n with respect to the strength of the received signal. Next, in the downlink use frequency information generation unit 77,
For the S / N ratio of each of the downlink carriers 421 to 42n measured by the downlink S / N ratio measuring unit 76, it is determined whether or not to use it as a downlink frequency, and the determined downlink use frequency information is generated. The generated downlink use frequency information is transmitted to the twisted pair wire 13 by the uplink transmitter 74. Further, the downlink receiving section 75 receives the uplink used frequency information.
The upstream use frequency determination unit 78 determines the upstream use frequency from other than the received upstream use frequency information and the unavailable frequency information from the unavailable frequency determination unit 73, and notifies the upstream transmission unit 74. The upstream transmission unit 74 transmits a signal using the notified carrier wave of the used frequency.

In this way, the up and down frequencies used are determined, and signals are transmitted and received between the subscriber unit 11 and the center unit 12.

As described above, according to the present embodiment, the area specifying information is automatically acquired by the subscriber device and the frequency to be used is determined, thereby reducing the noise without input load by the subscriber. Communication with high transmission efficiency can be performed.

(Third Embodiment) FIG. 10 is a diagram showing the configuration of a communication system according to a third embodiment of the present invention. The first
Components corresponding to those in the communication system configuration diagram according to the embodiment are assigned the same reference numerals and explanations thereof are omitted.

FIG. 11 is a diagram showing the configuration of a subscriber device according to the third embodiment of the present invention. 111 is an area specifying information input section for inputting area specifying information, 112 is an up transmitting section for transmitting an up signal, and 113 is 114, a downlink receiver that receives a downlink signal
Is the signal-to-noise ratio (S
/ N ratio), a downlink S / N ratio measurement unit 115, a downlink use frequency information generation unit 115 that determines a downlink use frequency based on the S / N ratio of each carrier measured by the downlink S / N ratio measurement unit 114, Is an upstream use frequency determination unit that determines an upstream frequency to be used based on the upstream frequency information received by the downstream reception unit 113.

FIG. 12 is a diagram showing the configuration of the center device according to the third embodiment of the present invention, in which 121 is an upstream receiving unit for receiving an upstream signal, 122 is unusable from the area specifying information received by the upstream receiving unit 121. An unusable frequency determining unit that determines the frequency, 123 is an upstream S / N ratio measuring unit that measures the signal-to-noise ratio (S / N ratio) of the signal received by the upstream receiving unit 121, and 124 is an upstream S / N ratio. An upstream use frequency information generation unit that determines the allocation of the upstream use frequency based on the S / N ratio of each carrier measured by the measurement unit 123, and 125 is the unusable frequency determined by the unusable frequency determination unit 122 and the upstream reception unit. A downlink used frequency determination unit that determines the downlink frequency to be used based on the downlink frequency information received in 121, and 126 is a downlink transmission unit that transmits the downlink signal.

FIG. 13 is a diagram showing the structure of a carrier wave used in the communication system according to the third embodiment of the present invention. In addition, the same numbers are given to the corresponding portions in the same configuration as the configuration diagram of the carrier wave used in the communication system of the first embodiment,
The description is omitted.

FIG. 14 is a diagram showing the structure of the area specifying information input screen used in the subscriber unit according to the third embodiment of the present invention. In addition, the same number is attached to the corresponding portion in the same configuration as the area specifying information input screen used in the subscriber device according to the first embodiment, and the description thereof will be omitted. It should be noted that the area specifying information item in this figure may include any one item.

The subscriber unit 11 and the center unit 12 are described below.
The operation of determining the frequency to be used in between will be described with reference to FIGS. 10 to 14.

The subscriber device 11 inputs the area specifying information by the area specifying information input section 111 by using the area specifying information input screen by the subscriber. The area identification information input by the area identification information input unit 111 is the upstream transmission unit 11
Sent from 2 to twisted pair 13.

The center device 12 receives the area specifying information from the twisted pair wire 13 by the upstream receiving section 121. The received area identification information is notified to the unusable frequency determination unit 122, the unusable frequencies 412, 413, 422, 423 are determined from the radio frequencies 431, 432 corresponding to the areas, and the unusable information is used as downlink information. Notify the transmission unit 126. The downlink transmission unit 126 transmits the downlink signals of the twisted pair wire 13 other than the downlink unusable frequencies 422 and 423 from the unusable frequency determination unit 122, and the carriers 421 to 42.
Each of the n transmits the signal at the maximum transmittable power and transmits the unusable frequency information.

The subscriber unit 11 receives the carriers 421 to 42n by the downlink receiving unit 113. The received carrier waves 421 to 42n are transmitted to the downlink S / N ratio measuring unit 114.
At, the amount of unnecessary electromagnetic noise with respect to the strength of the received signal is measured. Next, the used frequency information generation unit 115 determines whether or not to use the S / N ratio of each of the downlink carriers 421 to 42n measured by the downlink S / N ratio measurement unit 114 as a downlink frequency. , And generates the determined downlink use frequency information. The generated downlink used frequency information is transmitted to the twisted pair wire 13 by the uplink transmitter 112. Also,
The downlink receiving unit 113 receives the unusable frequency information and the uplink used frequency information. Uplink frequency determining unit 1
16 determines the uplink use frequency from the received unusable frequency information and the uplink use frequency information, and the uplink transmitter 1
Notify 12 The uplink transmitter 112 transmits a signal using the notified carrier wave of the used frequency.

Similarly, the subscriber device 11 includes the upstream transmission unit 1
12, the signal is transmitted at the maximum transmittable power by each of the carriers 411 to 41n that transmit the upstream signal of the twisted pair wire 13 other than the upstream unusable frequencies 412 and 413 received by the downstream receiving unit 113.

The center device 12 receives the carrier waves 411 to 41n by the upstream receiver 121. Each of the received carrier waves 411 to 41n is transmitted to the upstream S / N ratio measuring unit 12
At 3, the amount of unwanted electromagnetic noise with respect to the strength of the received signal is measured. Next, the upstream use frequency information generation unit 12
At 4, the S / N ratio of each of the upstream carriers 411 to 41n measured by the upstream S / N ratio measuring unit 123 is determined as to whether or not to use it as an upstream frequency, and the determined upstream use frequency information is displayed. To generate. The generated uplink used frequency information is transmitted to the twisted pair wire 13 by the downlink transmitter 126. Further, the uplink receiver 121 receives the downlink used frequency information. The downlink used frequency determination unit 125 receives the downlink used frequency information and the unusable frequency determination unit 1
The uplink use frequency is determined from information other than the unusable frequency information from 22 and is notified to the downlink transmitter 126. The downlink transmission unit 126 transmits a signal using the notified carrier wave of the used frequency.

Although the address, telephone number, and zip code are used as the area specifying information in the embodiment, any information can be used as long as the information can identify the area.

In this way, the up and down frequencies used are determined and signals are transmitted and received between the subscriber unit 11 and the center unit 12.

The area specifying information of the subscriber is the twisted pair wire 13
The center device may be notified by another method such as by mail instead of by way.

As described above, according to the present embodiment, the area specifying information is processed by the center device and the used frequency is determined, thereby reducing noise without adding the configuration of the subscriber device, Communication with high transmission efficiency can be performed.

(Fourth Embodiment) FIG. 15 is a diagram showing a communication system configuration of a fourth embodiment of the present invention, in which 151 is a communication carrier, 152 is a subscriber device, 153 is a center device,
54 is a twisted pair wire.

Below, the telecommunications carrier 151 and the subscriber unit 15
A method of providing a means for determining the used frequency between the two will be described.

The telecommunications carrier 151 uses the frequency determining means for the subscribers who need the frequency determining means by using the twisted pair wire 154 from the center device 153.
Provide to 2. The subscriber who receives the provision pays the carrier for the provision of the frequency determining means.

The frequency determining means to be provided means the area specifying information input unit 21, the unusable frequency determining unit 22, the upstream transmission unit 23, and the upstream use of the subscriber unit of the communication system according to the first embodiment. It is a means performed by the frequency determining unit 27, the downlink use frequency determining unit 34, and the downlink transmitting unit 35 of the center device.

The frequency determining means in the subscriber device provided is the radio wave receiving section 71, the position calculating section 72, and the unusable frequency determining section 73 of the subscriber apparatus of the communication system of the second embodiment. Alternatively, it may be a means performed by the upstream transmission unit 74.

As a method of providing the subscriber with the frequency determining means, the telecommunications carrier may provide the center device 153 with the used frequency determining means. Telecommunications carrier 151
Provides the center device 153 with frequency determining means for a subscriber who needs the frequency determining means.

The frequency determining means to be provided means the area specifying information input unit 111, the upstream transmitting unit 112, the upstream use frequency determining unit 116, and the center device of the subscriber unit of the communication system according to the third embodiment. Unusable frequency determination unit 122, downlink used frequency determination unit 125, downlink transmission unit 12
It is the means performed in 6. The subscriber who receives the provision pays the carrier for the provision of the frequency determining means.

As described above, according to the present embodiment, with such a configuration, it is possible to provide a communication service with reduced transmission noise and high transmission efficiency to a subscriber who desires a stable communication environment. At the same time, the telecommunications carrier can receive a consideration according to the service from the subscriber.

Further, in the communication systems in the above-mentioned first to fourth embodiments, the signal transmission rate between the subscriber unit and the center unit may be asymmetrical. With such a configuration, it is possible to perform communication with high transmission efficiency in communication in which the amount of information is uneven.

Further, in the above configuration, the quadrature amplitude modulation may be used as the transmission system of the carrier wave between the subscriber unit and the center unit. With such a configuration, a large amount of information can be communicated in a narrow band, and the frequency can be effectively used.

[0083]

According to the present invention, by determining the frequency to be used for the noise specialized in the area by the area specifying information from the subscriber, there is a regional characteristic such as a radio frequency and a temporal characteristic. Noise that fluctuates over time is reduced, and communication with high transmission efficiency becomes possible.

Further, according to the present invention, the area specifying information is automatically obtained by the subscriber device and the frequency to be used is determined, so that the noise can be reduced without the burden of input by the subscriber.
Communication with high transmission efficiency becomes possible.

Further, according to the present invention, the area specifying information is processed by the center device and the used frequency is determined, so that noise can be reduced and communication with high transmission efficiency can be achieved without adding the configuration of the subscriber device. Is possible.

Further, according to the present invention, it is possible to provide a communication service which reduces noise and has a high transmission efficiency, to a subscriber who desires a stable communication environment, and the communication carrier responds to the service. It becomes possible to receive the consideration from the subscriber.

Further, according to the present invention, it is possible to perform communication with high transmission efficiency in bidirectional communication with uneven information amount.

Further, according to the present invention, a large amount of information can be communicated in a narrow band, and effective use of frequency can be achieved.

[Brief description of drawings]

FIG. 1 is a diagram showing a communication system configuration according to a first embodiment of the present invention.

FIG. 2 is a diagram showing a subscriber device configuration according to the first embodiment of the present invention.

FIG. 3 is a diagram showing a configuration of a center device according to the first embodiment of the present invention.

FIG. 4 is a diagram showing a configuration of a carrier wave used in the communication system according to the first embodiment of the present invention.

FIG. 5 is a diagram showing a configuration of an area identification information input screen used in the subscriber device according to the first embodiment of the present invention.

FIG. 6 is a diagram showing a communication system configuration according to a second embodiment of the present invention.

FIG. 7 is a diagram showing a subscriber device configuration according to a second embodiment of the present invention.

FIG. 8 is a diagram showing a configuration of a center device according to a second embodiment of the present invention.

FIG. 9 is a diagram showing a structure of a carrier wave used in the communication system according to the second embodiment of the present invention.

FIG. 10 is a diagram showing a communication system configuration according to a third embodiment of the present invention.

FIG. 11 is a diagram showing a subscriber device configuration according to a third embodiment of the present invention.

FIG. 12 is a diagram showing a center device configuration according to a third embodiment of the present invention.

FIG. 13 is a diagram showing a structure of a carrier wave used in the communication system according to the third embodiment of the present invention.

FIG. 14 is a diagram showing a configuration of an area identification information input screen used in the subscriber device according to the third embodiment of the present invention.

FIG. 15 is a diagram showing a communication system configuration according to a fourth embodiment of the present invention.

FIG. 16 is a diagram showing a configuration of a conventional communication system.

FIG. 17 is a diagram showing a configuration of a conventional subscriber device.

FIG. 18 is a diagram showing a configuration of a center device of a conventional example.

FIG. 19 is a diagram showing a structure of a carrier wave used in a communication system of a conventional example.

[Explanation of symbols]

11 Subscriber device 12 Center device 13 twisted pairs 21 Area specific information input section 22 Unusable frequency determination unit 23 Uplink transmitter 24 Downlink receiver 25 Downlink S / N ratio measurement section 26 Downlink frequency information generator 27 Uplink frequency determining unit 31 upstream receiver 32 Upward S / N ratio measuring section 33 Uplink frequency information generator 34 Downlink frequency determining unit 35 Downlink transmitter 51 Address information 52 Telephone number information 53 Postal code information 71 Radio wave receiver 72 Position calculator 73 Unusable frequency determination unit 74 Upstream transmitter 75 Downlink receiver 76 Downlink S / N ratio measurement section 77 Downlink frequency information generator 78 Uplink frequency determining unit 111 Area specific information input section 112 Upstream transmission unit 113 Downlink receiver 114 Downlink S / N ratio measurement section 115 Downlink frequency information generator 116 Uplink frequency determining unit 121 Upstream receiver 122 Unusable Frequency Determining Section 123 Upward S / N ratio measuring section 124 Uplink frequency information generator 125 Downlink used frequency determination unit 126 Downlink transmitter 151 Telecommunications carriers 152 Subscriber device 153 Center device 154 twisted pair wire 161 Subscriber device 162 Center device 163 twisted pair 171 Uplink transmitter 172 Downlink receiver 173 Downlink S / N ratio measurement section 174 Downlink frequency information generator 175 Uplink frequency determining unit 181 Uplink receiver 182 Upward S / N ratio measuring section 183 Uplink frequency information generator 184 Downlink frequency determining unit 185 Downlink transmitter 411 Carrier wave for transmitting upstream signal 412 Carrier wave for transmitting upstream signal 413 Carrier wave for transmitting upstream signal 41n Carrier wave for transmitting upstream signal 421 Carrier wave for transmitting downlink signal 422 Carrier wave for transmitting downlink signal 423 Carrier wave for transmitting downlink signal 42n Carrier wave for transmitting downlink signal 431 Frequency bands used in radio broadcasting 432 Frequency bands used in radio broadcasting 1911 Carrier wave for transmitting upstream signal 1912 Carrier wave for transmitting upstream signal 1913 Carrier wave for transmitting upstream signal 191n Carrier wave for transmitting upstream signal 1921 Carrier wave for transmitting downlink signal 1922 Carrier wave transmitting downlink signal 1923 Carrier wave for transmitting downlink signal 192n Carrier wave for transmitting downlink signals

   ─────────────────────────────────────────────────── ─── Continued front page    F term (reference) 5K046 AA01 BA05 BB05 CC28 PP08                       YY01                 5K101 KK20 LL01 MM04 VV06

Claims (14)

[Claims] 1. Use frequency information determining means for determining use frequency information from the input region specifying information and region-specific frequency information, and a signal for determining one or more signal transmission frequencies based on the determined use frequency information. A communication device comprising: a transmission frequency determining means; and a signal transmitting means for transmitting a signal based on the determined signal transmission frequency, wherein the frequency information is transmitted from the signal transmitting means. 2. The communication device according to claim 1, wherein the area specifying information is an address input by a user. 3. The communication device according to claim 1, wherein the area specifying information is a telephone number input by a user. 4. The communication device according to claim 1, wherein the area specifying information is a postal code input by a user. 5. The communication device according to claim 1, wherein the area specifying information is information obtained from GPS. 6. The communication device according to claim 1, wherein the area specifying information is transmitted from a communication partner. 7. The communication device according to claim 1, wherein the regional frequency information is received from another connected information providing communication device. 8. The communication device according to claim 1, wherein the used frequency information is information on unusable frequencies. 9. A signal receiving unit, and 1 based on the used frequency information received by the signal receiving unit.
Alternatively, the communication device includes: a signal transmission frequency determining unit that determines a plurality of signal transmission frequencies; and a signal transmitting unit that performs signal transmission based on the determined signal transmission frequency. 10. The use frequency information received by the signal receiving means is the use frequency information transmitted from the other communication device according to any one of claims 1 to 8. The communication device described. 11. A communication frequency determining method, comprising: the first communication device according to claim 1; and the second communication device according to claim 9, which is connected to the first communication device. A communication frequency determining method, wherein the second communication device determines a signal transmission frequency based on the used frequency information transmitted by the device. 12. A signal transmission speed from the first communication device to the second communication device and a signal transmission speed from the second communication device to the first communication device are different from each other. The communication frequency determining method according to claim 11. 13. The first communication device according to claim 1, the second communication device according to claim 9 connected to the first communication device, and the information connected to the second communication device. In the communication frequency determining method having a providing communication device, the information providing communication device has information in which the first communication device corresponds or does not correspond to a frequency control target, and the second communication device includes the information providing communication device. If the frequency control target information from is determined, the signal transmission frequency is determined based on the use frequency information, and if the frequency control target information is not applicable, the signal is used without using the use frequency information. A method for determining a communication frequency, which comprises determining a transmission frequency. 14. A first communication device according to claim 1, a second communication device according to claim 9 connected to the first communication device, and information connected to the second communication device. In the communication frequency determining method having a providing communication device, the information providing communication is performed by the region-specific frequency information, the use frequency information determining means, or the signal transmission frequency determining means in the first communication device or the second communication device. A method for determining a communication frequency, characterized by receiving from a device.