JP2010233007A - Mobile communications equipment and communication control method therefor - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide mobile communications equipment and communication control method thereof for maintaining a service area range of an inter-vehicle communication system and suppressing radio interferences to other wireless communication systems and ETC (electronic toll collection) systems. <P>SOLUTION: In an inter-vehicle communication unit 10, a reception signal 22 is received by an antenna 12, reception processing is performed by a communication processing part 14 on the basis of a specification regulated, by utilizing a frequency band of 5.8 GHz, and a reception signal 28 is supplied to a detuning part 16. In the detuning part 16, radio wave status in the detuning of each channel of the receiving signal 28 is investigated, and detuning information 56 indicative of the investigated radio wave status in detuning of each channel is supplied to a determination part 18. In the determination part 18, the detuning information 56 is compared with a predetermined threshold for detuning of each channel to determine influences of radio interference on a DSRC (dedicated short-range communication) system; a control signal 58 corresponding to a determined result is generated; and transmission is controlled for a communication application part 20, according to the control signal 58. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a mobile communication device and a communication control method therefor, and the mobile communication device particularly includes an inter-vehicle communication system proposed by an Intelligent Transportation System (ITS) FORUM RC-005. It suppresses radio wave interference in a dedicated short range communication (DSRC) system using a 5.8 GHz band other than this inter-vehicle communication system. Moreover, the communication control method of a mobile communication apparatus suppresses the radio wave interference which occurs within the service area range of an intelligent road traffic system and a dedicated narrowband communication system.

  Conventionally, radio wave interference between base stations in a service area range between a plurality of adjacent base stations that perform radio communication in a common frequency band, as disclosed in Patent Document 1, transmission power according to the interference noise power level Is controlled by an attenuator.

  Japanese Laid-Open Patent Publication No. 2002-228688 is a data transfer control method and apparatus for detecting a data transfer state in a wireless section, forcibly releasing a connection using a poor quality line section, It is intended for effective use. Patent document 2 is a communication control method in the system to which it is applied. In Patent Document 2, the determination of the bit error rate (BER) threshold requires not only the received power level but also the influence of multipath fading. That is, this request is because the received power level differs depending on the propagation environment even if the same BER result is obtained.

Patent No. 2968590 JP 2000-083036 A

  By the way, when the in-vehicle communication system of the inter-vehicle communication system is applied to the vehicle moving within the service area range in which the DSRC system operates, the DSRC system is connected to the inter-vehicle communication system using a common frequency band. There is no transmission power control function to suppress radio wave interference. For this reason, it is requested | required that the vehicle-to-vehicle communication system side vehicle-mounted communication apparatus should suppress electromagnetic wave interference among both systems.

  However, if a communication device mounted on the vehicle-to-vehicle communication system suppresses transmission power transmitted in response to this request by an attenuator, the service area range of the vehicle-to-vehicle communication system is reduced. By this reduction. For example, an in-vehicle communication device in a vehicle-to-vehicle communication system notifies a vehicle that requests reception of danger information and position information to be transmitted for accident suppression late, and as a result, increases the probability of occurrence of an accident. .

  Therefore, it is desired that the inter-vehicle communication system maintains the service area range and suppresses radio wave interference with the DSRC system.

  As a specific example, an interference path that occurs in the service area of an automatic toll collection (Electronic Toll Collection: ETC) system, which is one of the DSRC systems, will be briefly described. The interference path that can affect the ETC system is considered to be the interference path by the RC-005 standard vehicle-to-vehicle communication system for each ETC roadside communication device and ETC in-vehicle communication device, and may affect the RC-005 standard vehicle-to-vehicle communication system. The interference path may be an interference path by each of the ETC roadside communication device and the ETC in-vehicle communication device. Therefore, as described above, in the inter-vehicle communication system of the ITS FORUM RC (Range Communication) -005 standard, it is possible to control communication so as not to interfere with each of the ETC roadside communication device and the ETC in-vehicle communication device. Required.

  In addition, ITS FORUM RC-005 standard inter-vehicle communication system and ETC system, for example, channels D7, D6, D5, D4, D1, D3, D2, tentative names of empty channels U0, U7, U6, U5, U4, U1, U3 , And U2 are arranged at 5 MHz intervals as a predetermined frequency. The ETC system uses channels D1, D2, U1 and U2, and the ITS FORUM RC-005 standard vehicle-to-vehicle communication system uses channels D6, D4, U6 and U4.

  Here, the in-vehicle communication device in the inter-vehicle communication system of the ITS FORUM RC-005 standard may use the channel U6. In this case, the frequency intervals of channel U6 and channel D2 and channel U1 and channel U6 are both separated by 15 MHz. However, it can not be said that frequency interference can be avoided even if the frequency is 15 MHz.

  By the way, when the ETC system uses channels D1, D2, U1 and U2, and the in-vehicle communication device in the inter-vehicle communication system of the ITS FORUM RC-005 standard uses channel U4, channel U4 and channel D2, and channel U1 and channel U4 The frequency interval is 25 MHz and 5 MHz, respectively. In this case, it is desirable that the in-vehicle communication device in the inter-vehicle communication system of the ITS FORUM RC-005 standard controls the communication so that the adjacent channels U1 and U2 used by the ETC system do not interfere during the communication of the ETC system. It is.

  In view of such problems, the present invention provides a mobile communication device that maintains a service area range of a vehicle-to-vehicle communication system and suppresses radio wave interference with another wireless communication system, such as an ETC system, and a communication control method thereof. For the purpose.

  In order to solve the above-described problems, the present invention provides a mobile communication device that performs wireless communication between mobile units, a communication processing unit that performs wireless communication based on specifications defined by use of a predetermined frequency band, and received reception The detuning means for checking the radio wave condition at each channel detuning of the signal, the detuning information indicating the radio wave condition at each channel detuning compared with a predetermined threshold provided for each channel detuning, Determining means for determining the influence of radio wave interference on the wireless communication system, generating a control signal according to the determined result, and application means for storing and executing an application in mobile communication, the application means, Transmission is controlled according to a control signal.

  In order to solve the above-described problem, the present invention provides a method for controlling communication of a mobile communication device that performs wireless communication between mobiles, wherein a first radio wave condition in each channel detuning of a received reception signal is checked. Comparing the detuning information indicating the radio wave condition in each channel detuning and the predetermined threshold value provided for each channel detuning to determine the influence of radio wave interference on other radio communication systems. 2 and a third step of generating a control signal according to the determined result, and the third step compares and determines the detuning information and a predetermined threshold provided for each channel detuning If all indicate anti-radiation interference status, generate a control signal to prepare for transmission, and if even one comparison judgment indicates a situation that is affected by radio interference, generate a control signal to stop transmission. Features.

  According to the mobile communication device and the communication control method thereof according to the present invention, each of the received signals received by the detuning unit is received by the communication processing unit based on the specification defined by the use of the predetermined frequency band. The radio wave condition in channel detuning is checked, and the detuning information indicating the radio wave condition in each channel detuning checked by the determination means is compared with a predetermined threshold provided for each channel detuning to another wireless communication system. By determining the influence of the radio wave interference, generating a control signal according to the determined result, controlling the transmission of the application means according to the control signal, maintaining the service area range of the mobile communication system, and It is possible to suppress radio wave interference with other wireless communication systems, in particular, ETC systems.

It is a block diagram which shows the schematic structure of the Example in the inter-vehicle communication apparatus to which the mobile communication apparatus which concerns on this invention is applied. It is a block diagram which shows the schematic structure of the detuning part of FIG. It is a main flowchart which shows the communication control procedure in the inter-vehicle communication apparatus to which the mobile communication apparatus which concerns on this invention is applied. 4 is a flowchart of subroutine 1 which is a procedure for detecting CINR values in bandwidths of 5 MHz, 10 MHz, and 15 MHz of the detuning unit shown in FIG. 3. 4 is a flowchart of a subroutine 2 which is a procedure for obtaining a detuning level at 5 MHz, 10 MHz, and 15 MHz of the detuning unit illustrated in FIG. 3. FIG. 4 is a flowchart of a subroutine 3 of a determination processing procedure for generating a control signal by comparing and determining the detuning information shown in FIG. 3 and a predetermined threshold value.

  Next, an embodiment of a mobile communication device according to the present invention will be described in detail with reference to the accompanying drawings. Referring to FIG. 1, an embodiment of a mobile communication device according to the present invention is defined by receiving a received signal 22 with an antenna 12 and using a predetermined frequency band with a communication processing unit 14 in an inter-vehicle communication device 10 according to the present invention. The received signal 28 received based on the specifications to be supplied is supplied to the detuning unit 16, and the detuning unit 16 examines the radio wave condition at each channel detuning of the received signal 28, and indicates the radio wave condition at each channel detuning examined. The detuning information 56 is supplied to the determination unit 18, and the determination unit 18 compares the detuning information 56 with a predetermined threshold provided for each channel detuning to determine the influence of radio wave interference on other wireless communication systems. By determining, generating a control signal 58 according to the determined result, and controlling transmission according to the control signal 58, the communication application unit 20 maintains the service area range of the applied inter-vehicle communication system, and others Wireless communication system If it is possible to suppress the radio wave interference with ETC system.

  In this embodiment, the mobile communication device of the present invention is applied to the in-vehicle communication device 10. The illustration and description of parts not directly related to the present invention are omitted. In the following description, the signal is indicated by the reference number of the connecting line in which it appears.

  The inter-vehicle communication device 10 includes an antenna 12, a communication processing unit 14, a detuning unit 16, a determination unit 18, and a communication application unit 20, as shown in FIG.

  The antenna 12 has a function of transmitting and receiving radio waves. The antenna 12 emits an electric signal 22 modulated by a predetermined method from the inter-vehicle communication device 10 as a radio wave 24 and transmits it. The antenna 12 receives a radio wave 26 arriving at the inter-vehicle communication device 10 and sends an electric signal 22 to the communication control unit 14.

The communication processing unit 14 has a function that satisfies general conditions based on the ITS FORUM RC-005 standard or a standard based on this standard and a condition related to transmission and reception, and a packet processing function. General conditions define a radio frequency band, a radio communication scheme, a modulation scheme, a modulation signal, a medium access control scheme, and a frame length and a slot length. Specifically, the radio frequency band is the 5.8 GHz band, the carrier frequency interval is 5 MHz, and the transmission / reception frequency interval is 40 MHz. Further, the radio frequency band is not limited to the 5.8 GHz band, and any one of the 5.9 GHz band and the 700 MHz band, or a combination of these frequency bands may be used. The wireless communication system uses a broadcast communication system that sends the same message to a plurality of destinations simultaneously. As a modulation method, π / 4 shift QPSK (Quadrature Phase Shift Keying) with a roll-off rate of 1.0 is used. The modulation signal uses a modulation rate of 2048 kbaud ± 100 × 10 ⁻⁶ or less, a transmission rate of 4096 kbps, and an NRZ code format. The medium access control method is basically the CSMA (Carrier Sense Multiple Access) method. In the frame length and slot length, the packet length is basically set to 400 octets or less. The frame length is 100 ms or an integral multiple thereof.

  Conditions regarding transmission and reception include a radio frequency and a carrier number. At present, the frequency of channel U6 is mainly examined as a specification for channel U4 as a countermeasure against interference.

  Although not shown, the communication processing unit 14 basically includes components such as a radio frequency unit, a signal conversion unit, and a packet processing unit in order to process communication signals based on the ITS FORUM RC-005 standard described above. Needless to say. The RF unit has a function of transmitting and receiving signals. The signal conversion unit has a function of A / D converting the received signal and D / A converting the transmission signal. The packet processing unit has an assembly function for packetizing data and a function for disassembling data.

  The communication processing unit 14 outputs the reception signal 28 received by the RF unit to the detuning unit 16. Further, the communication processing unit 14 converts the received high-frequency signal into data subjected to baseband processing, and outputs the converted data 30 to the communication application unit 20.

  The detuning unit 16 has a function of detecting a carrier to interference noise ratio (CINR) corresponding to each adjacent channel and a function of detecting a CINR value of a channel detected as a detuning level.

  In this embodiment, the detuning unit 16 includes a 5 MHz detuning unit 32, a 10 MHz detuning unit 34, and a 15 MHz detuning unit 36, as shown in FIG. Here, the frequencies specifying the 5 MHz detuning unit 32, the 10 MHz detuning unit 34, and the 15 MHz detuning unit 36 represent the bandwidth. Since the detuning unit 16 sets the transmission / reception frequency interval, that is, the bandwidth to 40 MHz, it is preferable that the detuning unit 16 has eight at 5 MHz intervals. The 5 MHz detuning unit 32, the 10 MHz detuning unit 34, and the 15 MHz detuning unit 36 include CINR detection units 38, 40, and 42, and channel detuning units 44, 46, and 48, respectively.

  CINR detectors 38, 40 and 42 detect the CINR value of each frequency that is detuned based on the supplied reception signal 28. The channel detuning units 44, 46 and 48 detect the channel detuning level based on the supplied reception signal 28.

  Further, the detuning unit 16 has a function of sampling a sampling cycle used for detecting the detuning level / CINR in accordance with a transmission cycle in which other radio communication systems periodically transmit radio waves. The detuning unit 16 samples the reception signal 28 in a non-transmission period between periods in which another radio communication system, for example, an ETC system transmits radio waves. That is, since the roadside communication device of the ETC system periodically transmits radio waves, the detuning unit 16 detects the detuning level / CINR during the transmission cycle of the roadside communication device.

  The 5 MHz detuning unit 32, 10 MHz detuning unit 34, and 15 MHz detuning unit 36 in the detuning unit 16 output detuning information 50, 52, and 54 including the detected CINR value and the detected detuning level to the determination unit 18. To do. In FIG. 1, detuning information 50, 52 and 54 are collectively represented as detuning information 56.

  Returning to FIG. 1, the determination unit 18 has a function of comparing the detuning information with a predetermined threshold value to determine whether or not the ETC system is affected, and to control the operation of the application. The determination unit 18 has predetermined threshold values for the CINR value and the detuning level for the frequency to be detuned, and when the inter-vehicle communication device 10 starts radio wave transmission, the detuning information 50, 52 and 54 and the predetermined detune information Compare the threshold and determine the impact on the ETC system. In the determination of the influence, the determination unit 18 determines that the influence is small when each of the CINR value and the detuning level is equal to or less than each predetermined threshold value.

  Further, when each of the CINR value and the detuning level is larger than each predetermined threshold value, the determination unit 18 determines that there is an influence. The determination unit 18 may comprehensively determine whether or not all frequencies to be detuned are not affected. The determination unit 18 generates a control signal 58 that prepares to start transmission when all frequencies to be detuned do not affect, and outputs the control signal 58 to the communication application unit 20. Further, the determination unit 18 generates a control signal 58 for stopping transmission at the start of transmission when at least one of the frequencies to be detuned affects, and outputs the control signal 58 to the communication application unit 20.

Here, the predetermined threshold corresponding to each adjacent channel is assumed to be a detuning level when the inter-vehicle communication device 10 transmits a radio wave from the detected detuning level, for example, adjacent channel leakage power defined in ITS FORUM RC-005 It is recommended to set a threshold value that can determine whether or not this affects the receiver performance of the ETC system. Also, the inter-vehicle communication device 10 is an ITS
When a radio wave in the desired frequency band from the system specified in FORUM RC-005 is received, and the inter-vehicle communication device 10 transmits the radio wave from the detected CINR value, is the CINR value that can be received by other receiving vehicles? You may set to the threshold value which can be determined.

  Thus, the determination unit 18 preferably stops preparation for transmission even when the CINR value and the detuning level are lower than the threshold values set as the lower limits. Further, the detuning level at the predetermined threshold described above may be set by, for example, adjacent channel leakage power. The adjacent channel leakage power, adjacent adjacent channel leakage power, and adjacent adjacent channel leakage power in the ITS FORUM RC-005 standard are for reference, but are specified to be −35 dB or less, −50 dB or less, and −80 dB or less.

  The communication application unit 20 is a communication application unit 20 that communicates between vehicles. The communication application unit 20 controls start preparation / stop for transmission of the data 30 according to the control signal 60.

  Next, communication control in the inter-vehicle communication device 10 to which the present invention is applied will be described. This communication control relates to transmission preparation / transmission stop of the detuning unit 16 and the determination unit 18 when the inter-vehicle communication device 10 is in the service area of the ETC system.

  As shown in FIG. 3, the inter-vehicle communication device 10 supplies the reception signal 22 received by the antenna 12 to the communication processing unit 14 and corresponds to the front end of the communication processing unit 14, for example, when in the service area of the ETC system. Received by the RF unit. The communication processing unit 14 supplies the reception signal 28 received by the RF unit to the detuning unit 16. The detuning unit 16 receives the received signal 28 supplied to the 5 MHz detuning unit 32, the 10 MHz detuning unit 34, and the 15 MHz detuning unit 36 corresponding to each adjacent channel.

  First, the detuning unit 16 detects the CINR value in each adjacent channel based on the input received signal 28 (subroutine SUB1).

  Next, the detuning unit 16 detects the detuning level in each adjacent channel based on the input received signal 28 (subroutine SUB2). The detuning unit 16 samples the reception signal 28 in a non-transmission period between periods in which another radio communication system, for example, an ETC system transmits radio waves. The detuning unit 16 detects the detuning level / CINR during the transmission cycle of the roadside communication device. After these detections, the detuning unit 16 outputs detuning information 50, 52, and 54 including the detected CINR value and the detected detuning level to the determination unit 18.

  The determination unit 18 makes a determination by comparing the supplied detuning information 56 with a predetermined threshold value related to the CINR value and detuning level in each adjacent channel, and further comprehensively determines whether communication control is possible. 58 is generated (subroutine SUB3). The determination unit 18 outputs the control signal 58 generated according to the determination to the communication application unit 20.

  The communication application unit 20 in the inter-vehicle communication device 10 controls start preparation / stop according to the supplied control signal 58. With this control, the communication control in the inter-vehicle communication device 10 is finished. The inter-vehicle communication device 10 determines whether or not it affects the ETC system from the detected channel detuning level, maintains the service area range of the inter-vehicle communication system by controlling communication, and prevents radio interference with the ETC system. The communication control which suppresses is enabled.

  Next, processing for detecting the CINR value of each adjacent channel in the inter-vehicle communication device 10 will be briefly described with reference to FIG. Since the detuning unit 16 includes a 5 MHz detuning unit 32, a 10 MHz detuning unit 34, and a 15 MHz detuning unit 36, this detection process detects CINR values for three bandwidths.

  First, the 5 MHz detuning unit 32 detects the CINR value in the 5 MHz bandwidth based on the reception signal 28 input by the CINR detection unit 38 (substep SS10).

  Next, the 10 MHz detuning unit 34 detects the CINR value in the 10 MHz bandwidth based on the reception signal 28 input by the CINR detection unit 40 (substep SS12). Further, the 15 MHz detuning unit 36 detects the CINR value in the 15 MHz bandwidth based on the reception signal 28 input by the CINR detection unit 42 (substep SS14). After detecting three CINR values in this way, the process proceeds to return, and this process is terminated.

  Next, processing for detecting the detuning level of each adjacent channel in the inter-vehicle communication device 10 will be briefly described with reference to FIG. Since the detuning unit 16 includes a 5 MHz detuning unit 32, a 10 MHz detuning unit 34, and a 15 MHz detuning unit 36, this detection process detects detuning levels for three bandwidths.

  The 5 MHz detuning unit 32 obtains a detuning level in the reception signal 28 input by the channel detuning unit 44 (substep SS20).

  Next, the 10 MHz detuning unit 34 obtains a detuning level in the reception signal 28 input by the channel detuning unit 46 (substep SS22). Further, the 15 MHz detuning unit 36 obtains a detuning level in the reception signal 28 input by the channel detuning unit 48 (substep SS24). After obtaining three detuning levels in this way, the process proceeds to return, and this process is terminated.

  Here, the detuning unit 16 is not illustrated, but as described above, the 5 MHz detuning unit 32, the 10 MHz detuning unit 34, and the 15 MHz detuning unit 36 include the detected CINR value and the detected detuning level. The key information 50, 52, and 54 is output to the determination unit 18.

  Next, a process for determining whether or not each adjacent channel in the inter-vehicle communication device 10 affects the ETC system will be briefly described with reference to FIG. First, the determination unit 18 proceeds to determination processing of a 5 MHz detuning signal, and determines whether or not the 5 MHz detuning signal in the reception signal 28 is affected by interference in the ETC system service area (substep SS30). ). The presence / absence of influence is determined by comparing the CINR value and detuning level included in the detuning information 50 with predetermined threshold values for the two, and when both the CINR value and detuning level are equal to or lower than the predetermined threshold value (YES) Determine that there is no effect. If it is determined that there is no influence, the determination unit 18 advances the determination procedure to the determination process of the 10 MHz detuning signal (go to sub-step SS32).

  In addition, when any one of the CINR value and the detuning level included in the detuning information 50 is larger than each of the predetermined threshold values for the CINR value and the detuning level, the determination unit 18 has an influence on the ETC system due to interference. Is determined. Based on the determination result that there is an influence, the determination unit 18 advances the processing procedure to the transmission stop control process (to sub-step SS34).

  Next, in the determination process of the 10 MHz detuning signal, it is determined whether or not the 10 MHz detuning signal in the reception signal 28 is affected by interference in the ETC system service area (substep SS32). The determination unit 18 compares the CINR value and the detuning level included in the detuning information 52 with predetermined threshold values for the two, and when both the CINR value and the detuning level are equal to or lower than the predetermined threshold value (YES) Determine that there is no effect. If it is determined that there is no influence, the determination unit 18 advances the determination procedure to the determination process of the 15 MHz detuning signal (go to sub-step SS36).

  In addition, when any one of the CINR value and the detuning level included in the detuning information 52 is larger than the predetermined threshold values for the CINR value and the detuning level, the determination unit 18 has an influence on the ETC system due to interference. Is determined. The determination unit 18 advances the procedure to the transmission stop control process from the determination result that there is an influence (to sub-step SS34).

  Further, in the determination process of the 15 MHz detuning signal, it is determined whether or not the 15 MHz detuning signal in the reception signal 28 has an influence on the ETC system within the service area of the ETC system (substep SS36). The determination unit 18 compares the CINR value and the detuning level included in the detuning information 54 with predetermined threshold values for the two, and when both the CINR value and the detuning level are equal to or lower than the predetermined threshold value (YES) Determine that there is no effect. If it is determined that there is no influence, the determination unit 18 advances the procedure to the transmission preparation control process (to sub-step SS38).

  In addition, when any one of the CINR value and the detuning level included in the detuning information 52 is larger than the predetermined threshold values for the CINR value and the detuning level, the determination unit 18 has an influence on the ETC system due to interference. Is determined. The determination unit 18 advances the procedure to the transmission stop control process from the determination result that there is an influence (to sub-step SS34).

  If it is determined that at least one of the above-described determination processes affects the transmission stop control process, the determination unit 18 generates a transmission stop control signal 58 and outputs the control signal 58 to the communication application unit 20 (substep SS34).

  Further, in the transmission preparation control process, when all the determinations do not affect the above-described determination process, the determination unit 18 generates a transmission preparation control signal 58 and outputs it to the communication application unit 20 (substep SS38).

  After determining the three detuning signals 50, 52, and 54 in this way, the determination unit 18 proceeds to return and ends this processing.

Here, the predetermined threshold corresponding to each adjacent channel is assumed to be a detuning level when the inter-vehicle communication device 10 transmits a radio wave from the detected detuning level, for example, adjacent channel leakage power defined in ITS FORUM RC-005 It is recommended to set a threshold value that can determine whether or not this affects the receiver performance of the ETC system. Also, the inter-vehicle communication device 10 is an ITS
When a radio wave in the desired frequency band from the system specified in FORUM RC-005 is received, and the inter-vehicle communication device 10 transmits the radio wave from the detected CINR value, is the CINR value that can be received by other receiving vehicles? You may set to the threshold value which can be determined.

  The inter-vehicle communication device 10 makes a determination using this threshold, selects one of transmission start and transmission stop, and controls it to control the probability of occurrence of bucket collision even in the wireless communication system of the ITS FORUM RC-005 standard. It can be reduced.

  By configuring and operating as described above, the inter-vehicle communication device 10 determines whether the ETC system is affected based on the detected channel detuning level, and performs communication control to thereby determine the service area of the inter-vehicle communication system. Communication control that maintains the range and suppresses radio wave interference with the ETC system becomes possible.

10 Inter-vehicle communication device
12 Antenna
14 Communication processor
16 Detuning section
18 Judgment part
20 Communication application

Claims (11)

A mobile communication device that performs wireless communication between mobiles, the device comprising:
Communication processing means for performing wireless communication based on specifications defined by use of a predetermined frequency band;
A detuning means for checking the radio wave condition at each channel detuning of the received signal,
The detuned information indicating the radio wave condition in each channel detuning examined is compared with a predetermined threshold set for each channel detuning to determine the influence of radio wave interference on other wireless communication systems, and the result of the determination Determining means for generating a control signal according to
Including application means for storing and executing applications in mobile communications,
The application means controls transmission according to the control signal.   2. The mobile communication device according to claim 1, wherein the communication processing means has a predetermined frequency band of any one of 5.8 GHz, 5.9 GHz, and 700 MHz. 2. The apparatus according to claim 1, wherein the detuning unit detects a value of a CINR (Carrier to Interference Noise Ratio) in each channel detuning of the received signal;
Second detection means for detecting a detuning level in each channel detuning of the received signal,
The mobile communication apparatus, wherein the detuning means includes first and second detection means for each channel frequency at which a wireless communication system constructed by the apparatus requests to avoid interference.   2. The apparatus according to claim 1, wherein the determination means predicts the detuning level of the other party when the apparatus transmits radio waves from the detected detuning level, and the adjacent channel defined by the specification. A mobile communication device, characterized in that a threshold is set that allows determination of whether leakage power can affect the receiver performance of another wireless communication system.   2. The apparatus according to claim 1, wherein the determination means receives another radio wave from the detected CINR value when the radio wave is transmitted from the detected CINR value when the determination means receives the radio wave of the predetermined frequency band. The mobile communication device is characterized in that it is set to a threshold value that allows determination of a CINR value at which data can be received.   2. The apparatus according to claim 1, wherein the detuning unit is configured to detect a first detection unit that detects a CINR (Carrier to Interference Noise Ratio) in each channel detuning of the received signal and each channel of the received signal. A mobile communication apparatus characterized by sampling a sampling period used for each second detection means for detecting a detuning level in detuning in accordance with a transmission period in which the other wireless communication system periodically transmits radio waves. . A method of controlling communication of a mobile communication device that performs wireless communication between mobiles, the method comprising:
A first step of checking a radio wave condition at each channel detuning of the received signal;
A second step of comparing the detuned information indicating the radio wave status in each channel detuning with a predetermined threshold provided for each channel detuning to determine the influence of radio wave interference on other radio communication systems When,
A third step of generating a control signal according to the determined result,
The third step generates a control signal to prepare for transmission when all the comparison determinations between the detuning information and a predetermined threshold value provided for each channel detuning indicate a situation of anti-radiation interference, and the comparison determination A communication control method for a mobile communication device, comprising: generating a control signal for stopping transmission when at least one signal indicates a situation affected by radio wave interference.   The method according to claim 7, wherein the predetermined frequency band is any one of 5.8 GHz, 5.9 GHz, and 700 MHz.   8. The method according to claim 7, wherein the predetermined threshold value is an adjacent channel leakage power defined by the specification in view of a detuning level of the other party when the mobile communication device transmits a radio wave from the detected detuning level. A communication control method for a mobile communication device, characterized in that a threshold is set to determine whether or not can affect the receiver performance of another wireless communication system.   8. The method according to claim 7, wherein the predetermined threshold value is obtained when the mobile communication apparatus transmits a radio wave from a detected CINR (Carrier to Interference Noise Ratio) value after receiving the radio wave of the predetermined frequency band. A communication control method for a mobile communication device, characterized in that the threshold is set such that a CINR value at which data can be received by another receiving vehicle can be determined. 8. The method according to claim 7, wherein a sampling cycle used for detecting a detuning level / CINR indicating a radio wave condition in each channel detuning is matched with a transmission cycle in which the other radio communication system periodically transmits radio waves. A communication control method for a mobile communication device, characterized by sampling.

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