JP2008244845A - Radio relay apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a radio relay apparatus, where precision for storing only a mobile station existing in a house to be relayed is increased. <P>SOLUTION: The radio relay apparatus 1 relays respective transmission radio waves between one or a plurality of mobile stations PS and a base station BS. The radio relay apparatus 1 has: an identification number reception means 21 for receiving an identification number dispatched from the mobile station PS; a storage means 22 for storing the identification number of the mobile station; and a reception electric field strength measurement means 23 for measuring a reception electric field strength measurement value of radio waves from the mobile station. The storage means 22 stores the identification number limitedly within prescribed time after the power is turned on, stores the preset storable maximum identification numbers, and stores only the identification number of the mobile station PS, where the measurement value of reception electric field strength is larger than a prescribed threshold. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a wireless relay device that relays wireless communication between a mobile station and a base station in a wireless communication system.

Conventionally, as shown in Japanese Patent Application Laid-Open No. 2004-349874 (Patent Document 1), a mobile station and a base station in a 4-channel multiplexed TDMA-TDD (Time Division Multiple Access-Time Division Duplex) wireless communication system A wireless relay device that relays wireless communication between the two is known. As shown in FIG. 6, this radio relay apparatus 1 is equipped with two systems of base station side radio communication unit 5a and mobile station side radio communication unit 5b, and the base station side radio communication unit 5a sets the base station antenna 11a. The mobile station side wireless communication unit 5b performs wireless communication with the mobile station PS via the mobile station antenna 11b.
JP 2004-349874 A

  The wireless relay device 1 shown in the above conventional example is installed and used in a house, but prior to operation, it is necessary to select and store a mobile station PS to be registered in advance. Therefore, the wireless relay device 1 performs at least one of communication and communication performed between the mobile station PS and the base station BS through the mobile station identification number storage mode in which the identification number of the mobile station PS to be relayed is stored. Transition to the wireless relay operation mode for wireless relay.

  In the mobile station identification number storage mode, when a mobile station PS is called from another adjacent house, when the radio relay apparatus 1 receives and recognizes the radio wave, the mobile station PS of another house not to be relayed Is stored as a relay target, and the process of storing the mobile station PS to be relayed cannot be achieved.

  The present invention has been invented in view of the above-described background art, and its object is to provide a radio relay apparatus with improved accuracy for storing only mobile stations existing in a house to be relayed. To do.

  In order to solve the above problems, in the invention according to claim 1 of the present application, in a wireless relay device that relays each transmission radio wave between one or a plurality of mobile stations and a base station, an identification number transmitted from the mobile station An identification number receiving means for receiving the received identification number, a storage means for storing the received identification number, and a received electric field strength measuring means for measuring a received electric field strength measurement value of the radio wave from the mobile station, The identification number is stored only within a predetermined time from the input, and the identification number can be stored up to a preset maximum storable number, and the received electric field strength measurement value is larger than a predetermined threshold value. Only the identification number of the mobile station is stored.

  The invention according to claim 2 of the present application is characterized in that, in the radio relay apparatus according to claim 1, characterized in that it comprises a registered number display means for displaying the number of stored identification numbers as the number of mobile stations. Yes.

  The invention according to claim 3 of the present application is characterized in that, in the wireless relay device according to claim 2, the registered number display means displays whether or not it is within the predetermined time.

  In the invention according to claim 4 of the present application, in the wireless relay device according to any one of claims 1 to 3, the predetermined threshold value is set using a received electric field strength measurement value of a radio wave received from a mobile station. The reception field strength threshold value setting means is provided.

  In the invention according to claim 5 of the present application, in the wireless relay device according to any one of claims 1 to 4, the storage means identifies the mobile station whose identification number is already stored within the predetermined time. When the number is received, the stored identification number is erased.

  In the invention according to claim 6 of the present application, in the wireless relay device according to any one of claims 1 to 5, the storage means extends the predetermined time when one identification number is stored. It is characterized by being.

  The radio relay apparatus according to the first aspect of the present invention comprises an identification number receiving means, a storage means, and a received electric field strength measuring means, wherein the storage means is a mobile station whose received electric field strength measured value is larger than a predetermined threshold Therefore, it is possible to prevent storing a mobile station of another house that is not a relay target whose reception electric field strength is smaller than that of a mobile station existing in a house that is a relay target. Only a mobile station existing in a certain house can be selected and stored. Further, the storage means stores the identification number only within a predetermined time, and stores the identification number up to a preset maximum storable number, so that the identification number of the mobile station that is not the relay target is received and stored. The possibility of doing so can be reduced. This makes it easy to store only the mobile stations existing in the house to be relayed.

  In the wireless relay device according to the second aspect of the present invention, in particular, since it is provided with a registered number display means for displaying the number of mobile stations in which identification numbers are stored, the number of registered mobile stations can be easily grasped. be able to.

  In the wireless relay device according to the third aspect of the present invention, in particular, the registered number display means displays whether or not it is within the predetermined time in which the identification number is stored by the storage means. It is possible to easily grasp whether or not the registration is within a predetermined time. Furthermore, since it is to display whether it is within the predetermined time together with the display of the registered number of mobile stations, it is not necessary to separately provide a display means for displaying whether it is within the predetermined time, The number of parts can be reduced.

  In the wireless relay device of the invention according to claim 4 of the present application, in particular, since the reception field strength threshold value setting means for setting the reception field strength measurement value of the radio wave received from the mobile station as the predetermined threshold value is provided, The received electric field strength from a mobile station existing in another adjacent house that may be registered can be set as a predetermined threshold. This makes it possible to easily set a predetermined threshold for accurately selecting a mobile station that is not a registration target.

  In the wireless relay device according to the fifth aspect of the present invention, in particular, when the storage means receives the identification number of the mobile station in which the identification number is already stored within a predetermined time in which the identification number is stored, Since the stored identification number is deleted, the registered mobile stations can be easily deleted individually.

  In the wireless relay device according to the sixth aspect of the present invention, in particular, when the storage means stores one identification number, it extends the predetermined time for storing the identification number. Since a predetermined time for registering a new mobile station is ensured each time it is registered, it is possible to secure a grace period for registration work.

  1 to 4 show a wireless relay device according to a first embodiment of the present invention. The radio relay apparatus 1 relays each transmission radio wave between one or a plurality of mobile stations PS and a base station BS, and an identification number receiving means 21 for receiving an identification number transmitted from the mobile station PS; A storage means 22 for storing the received identification number; and a reception field strength measurement means 23 for measuring a reception field strength measurement value of a radio wave from the mobile station. The storage means 22 is within a predetermined time from power-on. The identification number is stored in a limited manner, and the identification number can be stored up to a preset maximum storable number, and the identification of the mobile station PS whose received field strength measurement value is larger than a predetermined threshold value Only the number is stored. Also, the number of stored identification numbers is provided as a registered number display means 6 for displaying the number of identification numbers as the number of mobile stations PS. The registered number display means 6 displays whether or not it is within the predetermined time in which the identification number is stored by the storage means 22. In addition, reception field strength threshold setting means 24 is provided which uses the received field strength measurement value of the radio wave received from the mobile station PS as the predetermined threshold. The storage means 22 deletes the stored identification number when the identification number of the mobile station PS that has already stored the identification number is received within the predetermined time in which the identification number is stored. is there.

  Hereinafter, the wireless relay device of this embodiment will be described in more detail. As shown in FIGS. 1 and 2, the wireless relay device 1 includes a main body housing 11 made of plastic or the like, and an antenna 11 provided on a side surface of the main body housing 11 and covered with plastic or the like. The antenna 11 includes a base station BS antenna 11a for wireless communication with the base station BS and a mobile station PS antenna 11b for wireless communication with the mobile station PS. Further, on the side surface of the main body housing 11, a plurality of LEDs that are registered number display means 6 for displaying the registered number of mobile stations PS registered in the wireless relay device 1 are provided.

  The radio relay apparatus 1 shown in the present embodiment is a radio communication system such as PHS that relays radio communication between a mobile station PS and a base station BS in a 4-channel multiplexed TDMA-TDD radio communication system. It is used to relay wireless communication that performs packet switching and circuit switching between the mobile station PS and the base station BS, and supports communication at maximum of 128 kbps.

  As shown in FIG. 2, the radio relay apparatus 1 includes a base station antenna 11a, a mobile station antenna 11b, a control unit 2, a power source 3, a base station side radio communication unit 5a, and a mobile station side radio communication. The unit 5b and the registered number display means 6 are provided.

  The power source 3 is supplied with power from a commercial power source and generates an operating power source for the internal circuit.

  The memory unit 4 can store various data.

  The base station side radio communication unit 5a performs radio communication with the base station BS via the base station antenna 11a, and the mobile station side radio communication unit 5b moves via the mobile station antenna 11b. Wireless communication is performed with the station PS. When relaying communication from the base station BS to the mobile station PS, the base station BS radio communication unit 5a converts the frequency of the signal from the base station BS received via the base station antenna 11a. In the control unit 2, the received information is demodulated and decoded, the received information is analyzed, then encoded and modulated, the frequency is converted by the mobile station side wireless communication unit 5 b, and externally transmitted via the mobile station antenna 11 b. Transmit to mobile station PS. On the other hand, when relaying a signal from the mobile station PS to the base station BS, the signal is relayed through a signal path opposite to that described above, and the signal is transmitted to the base station BS via the base station antenna 11a.

  The control unit 2 includes an identification number receiving unit 21, a storage unit 22, a received electric field strength measuring unit 23, and a received electric field strength threshold setting unit 24.

  The identification number receiving means 21 receives each mobile station PS from data transmitted when a call such as packet switching or circuit switching is made from the mobile station PS by the mobile station antenna 11b and the mobile station side wireless communication unit 5b. The unique identification number is extracted.

  The storage means 22 acquires the identification number of the mobile station PS from the identification number receiving means 21. By storing the acquired identification number in the memory unit 4, the corresponding mobile station PS is registered as a relay target. The storage means 22 performs an operation for storing the identification number in the memory unit 4 only for a predetermined time preset in the memory unit 4 after the operation power is turned on by the power source 3. Further, the storage means 22 performs an operation for storing the identification number in the memory unit 4 up to the maximum number of mobile stations PS that can be registered in the memory unit 4 in advance.

  The received electric field strength measuring means 23 measures the received electric field strength measurement value of the data received from the mobile station PS by the mobile station antenna 11b and the mobile station side wireless communication unit 5b. This received electric field strength measurement value is transmitted to the storage means 22 and compared with a threshold value preset in the memory unit 4. When the received electric field strength measurement value is larger than the threshold value, the storage unit 22 stores the identification number of the corresponding mobile station PS in the memory unit 4.

  The received electric field strength threshold setting means 24 changes and sets the received electric field strength threshold preset in the memory unit 4. The received electric field strength measurement value measured by the received electric field strength measuring means 23 is transmitted by the received electric field strength threshold value setting means 24 by wirelessly transmitting data from the mobile station PS ′ of the other house not to be relayed to the wireless relay device 1. The threshold value is stored in the memory unit 4.

  As shown in FIG. 3, the wireless relay device 1 and the mobile station PS to be registered are in the house A, and the adjacent houses B and C have mobile stations PS ′ and PS ′ ′ that should not be registered. There is. Since the distance to the radio relay apparatus 1 is farther from the mobile station PS 'than the mobile station PS, the received electric field strength of the mobile station PS' received by the radio relay apparatus 1 is smaller than that of the mobile station PS. Furthermore, the received electric field strength of the mobile station PS ′ ′ is even smaller. Therefore, by measuring the received field strength of the mobile station PS ′ closest to the radio relay apparatus 1 that should not be registered, and setting this received field strength measurement value as a threshold value, the mobile station PS that should not be registered. Registration can be prevented by accurately selecting “and PS”.

  The registered number display means 6 displays the number of mobile stations PS in which the identification number is stored, and also displays whether or not it is within the predetermined time in which the identification number is stored by the storage means 22. To do.

  An operation of registering the mobile station PS in the wireless relay device 1 will be described with reference to FIG.

  When the operation power supply for the internal circuit is generated by the power supply 3 (S1), the storage means 22 starts measuring time (S2). The time measured in the storage means 22 is compared with a predetermined time set in advance in the memory unit 4, and it is determined whether or not the time measured exceeds the predetermined time (S3). If the measured time does not exceed the predetermined time, the storage unit 22 can further register the number of identification numbers stored in the memory unit 4 and the mobile station PS set in the memory unit 4 in advance. The maximum number is compared, and it is determined whether or not the number of identification numbers has reached the maximum number (S4). When the number of identification numbers does not reach the maximum number, the received field strength measurement value is compared with the threshold value preset in the memory unit 4 or the threshold value changed and set by the received field strength threshold value setting means 24. (S5) If the received field strength measurement value is large, it is determined that the mobile station PS is to be registered. If it is determined that the mobile station PS is to be registered, it is next determined whether or not the identification number is already stored in the memory unit 4 (S6). If the identification number is already stored, the identification number is deleted (S7). If the identification number is not already stored, the identification number of the mobile station PS received by the storage means 22 is stored in the memory. Store in the unit 4 (S8). That is, the storage means 22 should register until the set maximum number is reached when the information transmitted by calling the mobile station PS within a predetermined time is acquired via the identification number receiving means 21. It is determined whether the mobile station is a mobile station, and an operation for registering the mobile station PS is performed. Furthermore, registration can be canceled by transmitting data to the radio relay apparatus 1 from the same mobile station PS within a predetermined time.

  Further, the contents of the registration operation of the mobile station PS can be confirmed by the registered number display means 6. As shown in FIG. 1, the registered number display means 6 includes a plurality of LEDs, and includes L1 to L4 for displaying the registered number and L5 for displaying the power-on status. The wireless relay device 1 shown in the present embodiment shows a case where the maximum number of mobile stations PS that can be registered is four, but the maximum number is not limited to four, and the maximum number By the increase / decrease, the number of LEDs for displaying the registered number can also be increased / decreased.

  When the operation power source of the internal circuit is generated by the power source 3, L5 is lit and it can be confirmed that the power source is turned on. And the memory | storage means 22 will be in the mobile station identification number storage mode which starts time-measurement and receives registration of mobile station PS. During this mobile station identification number storage mode, L1-4 are in a blinking state.

  When the identification number of the first mobile station PS1 is stored in the memory unit 4 by the storage means 22, L1 is changed from blinking to constantly lit. The other LEDs L2 to L4 maintain the blinking state. Further, when the identification number of the second mobile station PS2 is stored in the memory unit 4, L2 is changed from blinking to constantly lit. Further, the same operation is performed for the third and subsequent units.

  Further, when there is no maximum number of registrations, for example, when only two units are registered within a predetermined time, L1 and L2 are always lit. When the predetermined time has elapsed and the mobile station identification number storage mode has shifted to the wireless relay operation mode in which normal wireless relay is performed, L3 and L4 are turned off, and the predetermined time in which the mobile station PS can be registered has ended. This can be confirmed by the LED. In the present embodiment, the registered number display means 6 by a combination of lighting, blinking, and extinguishing of the LED is shown. However, the present invention is not limited to this, and other combinations, lighting time length, lighting illuminance, Various situations may be displayed by a blinking cycle or a combination thereof.

  In addition, as an example shown in the present embodiment, the registered number display means 6 is configured by a plurality of LEDs. However, using the liquid crystal screen, the registered number, mobile station identification number storage mode, or wireless relay operation is used. Which mode is selected may be displayed.

  Further, the radio relay operation mode performs a relay process such as a call or communication performed between the mobile station PS and the mobile station BS, and is the same as a generally known relay process. Is omitted.

  Therefore, in the present embodiment, the identification number receiving means 21, the storage means 22, and the received electric field strength measuring means 23 are provided, and the storage means 22 has the mobile station PS whose received electric field strength measured value is larger than a predetermined threshold value. Since only the identification number is stored, the mobile stations PS ′ and PS ′ ′ of other houses that are not the relay target whose reception field strength is smaller than the mobile station PS existing in the home that is the relay target are stored. It is possible to select and store only the mobile stations PS existing in the house to be relayed. Further, the storage means 22 stores the identification numbers only within a predetermined time, and since the maximum number of identification numbers that can be stored is set, the identification numbers of the mobile stations PS ′ and PS ′ ′ that are not relay targets are set. The possibility of receiving and storing can be reduced. This makes it easy to store only the mobile stations PS existing in the house to be relayed.

  Also, since the registered number display means 6 for displaying the number of mobile stations PS in which the identification number is stored is provided, the registered number of mobile stations PS can be easily grasped.

  Furthermore, since the registered number display means 6 displays whether or not it is within the predetermined time in which the identification number is stored by the storage means 22, whether or not it is within the predetermined time during which the mobile station PS can be registered. It is possible to easily grasp whether or not. Further, since it displays whether or not it is within the predetermined time together with the display of the registered number of mobile stations PS, there is no need to separately provide a display means for displaying whether or not it is within the predetermined time. It is possible to reduce the number of parts.

  And since it has the received electric field strength threshold value setting means 24 for setting the received electric field strength measurement value of the radio wave received from the mobile station PS as the predetermined threshold value, there is another adjacent house that may be erroneously registered. The received electric field intensity from the mobile station PS ′ existing indoors can be set as a predetermined threshold value. This makes it possible to easily set a predetermined threshold value for accurately selecting a mobile station PS ′ that is not a registration target.

  The storage means 22 deletes the stored identification number when the identification number of the mobile station PS that has already stored the identification number is received within a predetermined time in which the identification number is stored. Therefore, the registered mobile stations PS can be easily deleted individually.

  Next, a radio relay apparatus according to the second embodiment of the present invention will be described. Here, only matters different from those in the first embodiment will be described, and other matters (configuration, operational effects, and the like) are the same as those in the first embodiment, and thus description thereof will be omitted.

  The storage means 22 extends the predetermined time for storing the identification number when one identification number is stored. Hereinafter, an operation of registering the mobile station PS in the wireless relay device 1 will be described with reference to FIG.

  When the operation power supply for the internal circuit is generated by the power supply 3 (S11), the storage means 22 starts measuring time (S12). The time measured in the storage means 22 is compared with a predetermined time set in the memory unit 4 in advance, and it is determined whether or not the time measured exceeds the predetermined time (S13). If the measured time does not exceed the predetermined time, the storage unit 22 can further register the number of identification numbers stored in the memory unit 4 and the mobile station PS set in the memory unit 4 in advance. The maximum number is compared, and it is determined whether or not the number of identification numbers has reached the maximum number (S14). When the number of identification numbers does not reach the maximum number, the received field strength measurement value is compared with the threshold value preset in the memory unit 4 or the threshold value changed and set by the received field strength threshold value setting means 24. If the received field strength measurement value is large (S15), it is determined that the mobile station PS is to be registered. If it is determined that the mobile station PS is to be registered, it is next determined whether or not the identification number is already stored in the memory unit 4 (S16). If the identification number is already stored, the identification number is deleted (S17). If the identification number is not already stored, the identification number of the mobile station PS received by the storage means 22 is stored in the memory. Store in the unit 4 (S18).

  The storage means 22 resets the time measurement (S19) after completing the step of registering (S18) or deleting (S17) the identification number. That is, the storage means 22 resets the time every time the identification number of the mobile station PS is stored or deleted in the memory unit 4. This makes it possible to clearly grasp the predetermined time during which one mobile station PS can be registered.

  Accordingly, the storage means 22 extends the predetermined time in which the identification number is stored when one identification number is stored. Therefore, every time the mobile station PS is registered, the storage unit 22 registers a new mobile station PS. Since a predetermined time for doing so is newly secured, it is possible to secure a grace period for the registration work.

1 is an external perspective view of a wireless relay device according to a first embodiment of the present invention. It is a block block diagram which shows the structure of the same radio relay apparatus. It is a system configuration diagram of a wireless communication system using the same wireless relay device. It is a flowchart of the registration process of the mobile station in the same radio relay apparatus. It is a flowchart of the registration process of the mobile station in the radio relay apparatus which is the 2nd Embodiment of this invention. It is a system configuration | structure figure of the radio | wireless communications system using the radio relay apparatus which is a prior art example.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Radio relay apparatus 11 Antenna 11a Antenna for base stations 11b Antenna for mobile stations 2 Control part 21 Identification number receiving means 22 Storage means 23 Received electric field strength measurement means 24 Received electric field strength threshold setting means 3 Power supply 4 Memory part 5a Base station side radio Communication unit 5b Mobile station side wireless communication unit 6 Registered number display means BS Base station PS Mobile station

Claims (6)

  In a wireless relay device that relays each transmission radio wave between one or a plurality of mobile stations and a base station, identification number receiving means for receiving an identification number transmitted from the mobile station, and storing the received identification number Storage means, and reception field strength measurement means for measuring the received field strength measurement value of the radio wave from the mobile station, and the storage means stores the identification number only within a predetermined time from power-on, The identification number can be stored up to the maximum storable number set, and only the identification number of the mobile station whose received field strength measurement value is larger than a predetermined threshold value is stored. Wireless relay device.   2. The radio relay apparatus according to claim 1, further comprising registered number display means for displaying the number of stored identification numbers as the number of mobile stations.   The radio relay apparatus according to claim 2, wherein the registered number display means displays whether or not the time is within the predetermined time.   4. The received electric field strength threshold setting means configured to use the received electric field strength measurement value of a radio wave received from a mobile station as the predetermined threshold value. Wireless relay device.   The storage means is configured to delete the stored identification number when receiving the identification number of a mobile station in which the identification number is already stored within the predetermined time. The wireless relay apparatus as described in any one of thru | or 4.   6. The wireless relay device according to claim 1, wherein the storage means extends the predetermined time when one identification number is stored.

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