JP6044220B2 - Base station apparatus, radio communication system, radio communication method, and program - Google Patents

Description

The present invention relates to a base station device , a wireless communication system, a wireless communication method, and a program that perform wireless communication with a plurality of mobile station devices.

  In a wireless communication system using SCPC digital wireless communication, a technique for performing communication between a plurality of mobile station apparatuses via a base station apparatus is used (Patent Document 1). Such a wireless communication system establishes wireless communication on the condition that either the mobile station apparatus or the base station apparatus is turned on by press talk. Patent Document 2 discloses a technique that enables a mobile station apparatus to perform communication such as voice in response to simultaneous reports from a base station apparatus as needed.

FIG. 8 is a diagram showing a processing sequence at the time of calling a base station in the related wireless communication system.
The processing sequence shown in FIG. 8 shows processing when wireless communication (downlink communication) is performed from the base station device 40 to a plurality of mobile station devices 41 (mobile station device 41a, mobile station device 41b...) Through simultaneous communication. ing. When the base station apparatus 40 is turned on, the base station apparatus 40 first transmits SB0 (Synchronous Burst 0), which is a signal for establishing synchronization (step S81). This SB0 is a signal including ID information uniquely assigned to the base station apparatus 40. The plurality of mobile station apparatuses 41 establish communication synchronization while receiving the SB0 and identify ID information included in the SB0. The plurality of mobile station apparatuses 41 displays the identified ID information on an appropriate display unit or the like, so that each operator in the plurality of mobile station apparatuses 41 recognizes that the transmission source of the received signal is the base station apparatus 40. Can be made.

Subsequently, the base station device 40 transmits a TCH (Transport Channel) (step S82). The TCH is a main information signal (mainly a voice signal) that the base station device 40 intends to transmit to a plurality of mobile station devices 41. However, TCH does not include ID information. The plurality of mobile station apparatuses 41 receive the TCH from the base station apparatus 40. Then, the plurality of mobile station apparatuses 41 can transmit a main information signal (voice signal) based on the received TCH to each operator in the plurality of mobile station apparatuses 41 using an appropriate call means.
When the voice call is finished, the base station device 40 shifts to press talk off (step S83). The mobile station device 41a and the mobile station device 41b recognize the transition to the press talk-off, and cancel the established wireless communication with the base station device 40.

  Through the processing sequence as described above, the operator of the base station device 40 (the operator at the command board) turns on the press talk in the base station device 40, so that the transmission source of each operator in the plurality of mobile station devices 41 is transmitted to the base station. An audio signal can be transmitted while recognizing the station device 40.

FIG. 9 is a diagram showing a processing sequence at the time of calling a mobile station in the related wireless communication system. In the wireless communication system, the base station device 40 performs a return communication between the mobile station devices 41 to mediate when the mobile station makes a call.
The processing sequence shown in FIG. 9 shows processing when wireless communication (return communication) is performed via the base station device 40 from the mobile station device 41b to another mobile station device 41a by simultaneous communication. The mobile station apparatus 41b first transmits SB0, which is a signal for establishing synchronization, when the press talk is turned on (step S91). This SB0 includes ID information uniquely assigned to the mobile station device 41b. The base station apparatus 40 establishes communication synchronization while receiving the SB0, and returns the received SB0 as it is. Here, the return transmission performed by the base station apparatus 40 is simultaneously transmitted to all mobile station apparatuses including the mobile station apparatus 41a and the mobile station apparatus 41b that is the transmission source, as shown in FIG.

  The mobile station device 41a receives SB0 (originally transmitted by the mobile station device 41b) transmitted back from the base station device 40. The mobile station device 41a establishes communication synchronization while receiving the SB0 and identifies ID information included in the SB0. The mobile station apparatus 41a displays the identified ID information on an appropriate display unit or the like, thereby allowing the operator of the mobile station apparatus 41a to recognize that the transmission source of the received signal is the mobile station apparatus 41b.

Subsequently, the mobile station device 41b transmits a TCH (step S92). The TCH includes a voice signal that the mobile station device 41b intends to transmit to the mobile station device 41a. However, TCH does not include ID information. The base station apparatus 40 performs simultaneous loopback transmission of the TCH as it is, as in SB0 described above. The mobile station device 41a receives the TCH (originally transmitted by the mobile station device 41b) transmitted back from the base station device 40. Then, the mobile station apparatus 41a can transmit the main information signal (voice signal) based on the received TCH to the operator of the mobile station apparatus 41a using an appropriate call means.
When the voice call is finished, the mobile station device 41b shifts to press talk off (step S93). The base station device 40 recognizes the transition to the press talk-off and cancels the established wireless communication with the mobile station device 41b.

  Through the processing sequence as described above, the operator of the mobile station apparatus 41b makes the operator of the mobile station apparatus 41a recognize that the transmission source is the mobile station apparatus 41b by turning on the press talk in the mobile station apparatus 41b. The audio signal can be transmitted.

JP 2008-109617 A JP 2000-209147 A

  FIG. 10 is a diagram illustrating a first processing sequence in a related wireless communication system when mobile station calls overlap during a base station call. Note that the base station device 40 of the wireless communication system described here does not perform a return call of a mobile station call when a mobile station call overlaps during a base station call, and does not make a base station call ( It is characterized in that transmission to the mobile station apparatus 41 is given priority to (downlink communication).

  The processing sequence shown in FIG. 10 shows processing when a transmission signal is received from the mobile station device 41b during simultaneous downlink communication from the base station device 40 to all mobile stations. First, the base station device 40 first transmits SB0 which is a signal for establishing synchronization when the press talk is turned on in the own device (step S101), and then transmits TCH (step S102). . The mobile station device 41a and the mobile station device 41b receive the SB0 and TCH from the base station device 40. The mobile station device 41a and the mobile station device 41b acquire the ID information of the base station device 40 by SB0 from the base station device 40, and display the acquired ID information using an appropriate display unit. .

  Here, it is assumed that the base station apparatus 40 is turned on by press talk in the mobile station apparatus 41b during TCH transmission. The mobile station apparatus 41b first transmits SB0, which is a signal for establishing synchronization, when the press talk is turned on (step S103). However, the base station device 40 establishes communication synchronization while receiving the SB0. However, the base station device 40 is transmitting the TCH of the own device to the mobile station device 41a and the mobile station device 41b by simultaneous communication, and gives priority to the TCH. Therefore, the SB0 received from the mobile station device 41b is not sent back. Therefore, in step S103, the mobile station device 41a and the mobile station device 41b do not receive SB0 transmitted by the mobile station device 41b. Similarly, the mobile station device 41a and the mobile station device 41b do not receive the TCH that the mobile station device 41b transmits subsequent to SB0 (step S104).

  Then, it is assumed that the telephone call (TCH transmission) from the base station device 40 is finished and the base station device 40 is in a press talk-off state (step S105). At this time, the mobile station device 41b is kept on the press talk from step S103. In this case, since the base station apparatus 40 is in a state where the TCH from the mobile station apparatus 41b can be returned and transmitted, the base station apparatus 40 immediately performs the return transmission (step S106). Then, the mobile station device 41a receives the TCH from the base station device 40 until the mobile station device 41b is pressed off (step S107).

  However, SB0 transmitted by the mobile station device 41b in step S103 is not transmitted by the base station device 40, and the mobile station device 41a has not received the SB0. Therefore, in the wireless communication system that performs the processing shown in FIG. 10, the mobile station device 41b is switched from the base station device 40 to the mobile station device 41b even though the transmitter (TCH source) is switched from step S105 to step S106. The station apparatus 41a remains displayed with the base station apparatus 40 as the source (the display means in the mobile station apparatus 41a erases the display of ID information only when the own apparatus stops receiving TCH). . Therefore, the operator in the mobile station apparatus 41a cannot immediately recognize that the transmitter has been switched. Note that the TCH received by the mobile station device 41a from step S106 to step S107 does not include the ID information of the mobile station device 41b.

  FIG. 11 is a diagram showing a second processing sequence in a case where mobile station calls overlap during a base station call in the related wireless communication system. Note that the base station device 40 of the wireless communication system described here gives priority to the mobile station call without making the base station call if the mobile station call overlaps during the base station call. It is characterized by sending (return communication).

  The processing sequence shown in FIG. 11 shows processing when a transmission signal is received from the mobile station device 41b during downlink individual communication from the base station device 40 to the mobile station device 41b. First, when the base station apparatus 40 is turned on by press talk, the base station apparatus 40 first transmits SB0, which is a signal for establishing synchronization (step S111), and then transmits TCH (step S112). . The mobile station device 41a and the mobile station device 41b receive the SB0 and TCH from the base station device 40. The mobile station device 41a and the mobile station device 41b acquire the ID information of the base station device 40 by SB0 from the base station device 40, and display the acquired ID information using an appropriate display unit. .

  Here, it is assumed that the mobile station apparatus 41b is in a press talk-on state so that the mobile station apparatus 41b performs individual communication with the base station apparatus 40 while the base station apparatus 40 is transmitting TCH. The mobile station apparatus 41b first transmits SB0, which is a signal for establishing synchronization, when the press talk is turned on (step S113). Here, the base station apparatus 40 establishes communication synchronization while receiving the SB0, stops TCH transmission in the own apparatus, and instead transmits the received SB0 as it is. The mobile station device 41a receives SB0 (originally transmitted by the mobile station device 41b) transmitted back from the base station device 40. The mobile station device 41a establishes communication synchronization while receiving the SB0, identifies the ID information included in the SB0, and displays the ID information using an appropriate display means.

  Subsequently, the mobile station device 41b transmits a TCH (step S114). The base station apparatus 40 returns the TCH received from the mobile station apparatus 41b as it is in the above-described SB0 while stopping the transmission of the TCH of the own apparatus. The mobile station device 41a receives the TCH (originally transmitted by the mobile station device 41b) transmitted back from the base station device 40.

  Then, it is assumed that the call (TCH transmission) from the mobile station device 41b is finished and the mobile station device 41b is in a press talk-off state (step S115). At this time, the base station apparatus 40 is continuously on the press talk from step S111. In this case, since base station apparatus 40 is in a state where it can transmit a TCH in itself, it immediately transmits a TCH from itself (step S116). Then, the mobile station apparatus 41a and the mobile station apparatus 41b receive the TCH from the base station apparatus 40 until the press talk is turned off in the own apparatus (step S117).

  However, the ID information based on SB0 received from the base station apparatus 40 in step S111 is subsequently overwritten with the ID information based on SB0 received from the mobile station apparatus 41b in step S113. Thereafter, the mobile station apparatus 41a There is no opportunity to receive the ID information of the base station device 40. Therefore, in the wireless communication system that performs the processing shown in FIG. 11, the mobile station device 41a is connected to the base station device 40 from the mobile station device 41b in step S115 although the sender (TCH source) is switched. Will remain displayed with the mobile station device 41b as the source (the display means in the mobile station device 41a erases the display of the ID information only when the device no longer receives the TCH). Therefore, the operator in the mobile station apparatus 41a cannot immediately recognize that the transmitter has been switched. Note that the TCH received by the mobile station apparatus 41a from step S116 to step S117 does not include the ID information of the base station apparatus 40.

  As described above, in a related wireless communication system, when a mobile station call overlaps during a base station call, a transmitter is switched during reception in the mobile station device 41a as a transmission destination. Is assumed. However, in the wireless communication system described above, when the speaker is switched, the display of the ID information of the speaker is not switched, and the ID information of the speaker before the switching is continuously displayed as it is. . For this reason, the operator of the mobile station device 41a as the transmission destination cannot recognize that the transmitter has been switched in the middle.

  In the wireless communication system disclosed in Patent Literature 2, the base station apparatus receives a notification signal indicating that the mobile station apparatus is capable of press talk for the purpose of arbitrating the press talk contention of the mobile station apparatus. It is characterized by establishing communication with. However, as in the case of the wireless communication system described above, when the caller is changed after the conflict is resolved, no means is disclosed for the operator to recognize who the caller is changed to.

  Accordingly, an object of the present invention is to provide a wireless communication device, a line control device, a command control device, a wireless communication system, a wireless communication method, and a program that solve the above problems.

The present invention has been made in order to solve the above-described problem. When the press talk is turned on, the base station apparatus and mobile station apparatus which first transmit identification information of the own apparatus and subsequently transmit main information. The base station apparatus of the configured wireless communication system, and when the mobile station apparatus is in a press talk on state while the press talk on of the own apparatus is maintained, the mobile station apparatus in which the press talk is on The identification information holding unit that acquires and holds the transmitted identification information, and when the mobile station device that has become the press talk-on has not changed to press talk-off, A base station apparatus comprising: a transmitter that transmits the held identification information . The identification information holding unit may discard the held identification information when the mobile station apparatus that has been turned on in the press talk transitions to the press talk off. Further, the present invention provides the base station apparatus of a wireless communication system comprising a base station apparatus and a mobile station apparatus that first transmit identification information of the own apparatus and then transmit main information when the press talk is turned on. In this case, when the press talk is turned on, a transmitting unit that first transmits the identification information of the own device and subsequently transmits the main information is provided, and the transmitting unit maintains the press talk on of the own device. In the meantime, when the mobile station apparatus is turned on by press talk, the identification information transmitted by the mobile station apparatus that has been turned on by press talk and the main station transmitted by the mobile station apparatus that has been turned on by press talk following the identification information. If the mobile station device that has acquired the information and transmitted and the press talk is turned on changes to press talk off, and the own device does not change to press talk off, the own device It is a base station apparatus that transmits the identification information again.

The present invention is also a wireless communication system including a base station device and a mobile station device that first transmits identification information of its own device and then transmits main information when press talk is turned on. An identification information holding unit that acquires and holds the identification information transmitted by the mobile station device that has become the press talk when the mobile station device has become the press talk while the device's press talk on is maintained; A wireless communication system comprising: a transmitting unit that transmits the stored identification information when the mobile station device that has been turned into press talk-off and the mobile station device that has been turned on is not pressed into talk It is.

The present invention also provides a wireless communication system comprising a base station device and a mobile station device that first transmits identification information of its own device and then transmits main information when press talk is turned on. When the talk is turned on, the mobile station includes a transmitter that first transmits identification information of the device itself and subsequently transmits main information, and the transmitter transmits the mobile station while the device is maintaining the press talk on. Acquires identification information transmitted by the mobile station apparatus that has been pressed to talk on and the main information that has been transmitted by the mobile station apparatus that has been pressed to talk on following the identification information when the apparatus has been turned on. If the mobile station device that has been turned on and the press talk has been turned on, and the own device has not changed to the press talk off, the identification information of the own device is again displayed. It is a signal for wireless communication systems.

Further, the present invention is a wireless communication method for establishing wireless communication between a base station device and a mobile station device that first transmit identification information of the device itself and then transmit main information when the press talk is turned on. When the mobile station device is in a press talk on state while the device's press talk on is maintained, the mobile station device acquires and holds the identification information transmitted by the mobile station device in which the press talk is on. This is a wireless communication method for transmitting the held identification information when the mobile station apparatus that has been changed to press talk-off and the press-talk on has not been changed to press talk-off .

Further, the present invention is a wireless communication method for establishing wireless communication between a base station device and a mobile station device that first transmit identification information of the device itself and then transmit main information when the press talk is turned on. When the press talk is turned on, the identification information of the own device is transmitted first, then the main information is transmitted, and the mobile station device becomes the press talk while the press talk on of the own device is maintained. The identification information transmitted by the mobile station apparatus that has been turned on in the press talk and the main information transmitted by the mobile station apparatus that has been turned on in the press talk following the identification information are transmitted and obtained. mobile station apparatus becomes Tokuon is remained in the press-to-talk-off, and, when the own device is not remained in the press-to-talk-off, a wireless communication method der that transmits identification information of the device again .

The present invention also provides a computer for establishing wireless communication between a base station device and a mobile station device that first transmits identification information of the device itself and then transmits main information when the press talk is turned on. An identification information holding unit that acquires and holds identification information transmitted by the mobile station device that has become press talk-on when the mobile station device has become press-talk-on while press talk-on is maintained; Is a program that functions as a transmitting unit that transmits the stored identification information when the mobile station apparatus that has been turned on by press talk is not turned on by press talk off . Further, the present invention provides a computer that establishes wireless communication between a base station device and a mobile station device that first transmits identification information of the device itself and then transmits main information when the press talk is turned on. Is a transmitter that first transmits identification information of its own device, and then transmits main information,
When the mobile station apparatus is in a press talk on state while the device's press talk on is maintained, the identification information transmitted by the mobile station apparatus in which the press talk is on, and the press talk on following the identification information. The main information sent by the mobile station device that has become and is sent and transmitted, the mobile station device that has become the press talk on has changed to press talk off, and the own device has not changed to press talk off In this case, the program is made to function as a transmission unit that transmits the identification information of the own device again.

  According to the present invention, even when a mobile station call overlaps during a base station call, the receiving side can recognize that the transmitter has been switched halfway.

It is a figure which shows the structure of the radio | wireless communications system by 1st embodiment of this invention. It is a figure which shows the function structure of the base station apparatus 10a in the radio | wireless communications system 1 of 1st embodiment. In the radio | wireless communications system 1 of 1st embodiment, it is a figure which shows the 1st process sequence when a mobile station call overlaps during a base station call. In the radio | wireless communications system 1 of 1st embodiment, it is a figure which shows the 2nd process sequence when a mobile station call overlaps during a base station call. It is a 1st figure which shows the structure of the radio | wireless communications system 2 by 2nd embodiment of this invention. It is a figure which shows the function structure of the line control apparatus 22 and the some base station apparatus 20 in the radio | wireless communications system 2 of 2nd embodiment. It is a 2nd figure which shows the structure of the radio | wireless communications system 2 by 2nd embodiment of this invention. It is a figure which shows the process sequence at the time of the base station call in a related radio | wireless communications system. It is a figure which shows the process sequence at the time of the mobile station call in a related radio | wireless communications system. In a related radio | wireless communications system, it is a figure which shows the 1st process sequence when a mobile station call overlaps during a base station call. In a related radio | wireless communications system, it is a figure which shows the 2nd process sequence when a mobile station call overlaps during a base station call. It is a block diagram which shows the minimum structure of the radio | wireless communication apparatus based on this invention.

<First embodiment>
Hereinafter, a wireless communication system according to a first embodiment of the present invention will be described with reference to the drawings.
FIG. 1 is a diagram showing a configuration of a wireless communication system according to a first embodiment of the present invention.
In this figure, reference numeral 1 denotes a wireless communication system, for example, a fire-fighting emergency wireless communication system using the SCPC method. As shown in FIG. 1, the radio communication system 1 includes a plurality of base station devices 10 (base station device 10a, base station device 10b...), A plurality of mobile station devices 11 (mobile station device 11a, mobile station device 11b,. ..), A line control device 12 and a command system device 13 are provided. In addition, the command system device 13 includes a command stand 131 and a command control device 132.

  A plurality of base station apparatuses 10 (base station apparatus 10a, base station apparatus 10b...) Are areas in which they can communicate among a plurality of mobile station apparatuses 11 (mobile station apparatus 11a, mobile station apparatus 11b...). A wireless communication line is established with the mobile station apparatus 11 existing in the mobile station apparatus 11 to perform wireless communication. The plurality of mobile station apparatuses 11 perform wireless communication with the base station apparatus 10 capable of communicating among the plurality of base station apparatuses 10. The line control device 12 controls a communication line network between the plurality of base station devices 10 or the command system device 13 and establishes a communication line between predetermined devices in accordance with an instruction. The command stand 131 outputs a command signal based on the operation of the operator to the command control device. The command control device 132 issues an instruction to the line control device 12 to establish a communication line between the command base 131 and the mobile station device 11 specified by the operator via the command base 131. The channel and the base station apparatus 10 for performing wireless communication with the mobile station apparatus 11 are selected. In the present embodiment, the base station device 10 has a function as a wireless communication device. Further, the mobile station apparatus 11 itself may have a function as a base station apparatus 10 (that is, a radio communication apparatus) described below.

  In the following description, radio communication processing performed between the base station apparatus 10a, the mobile station apparatus 11a, and the mobile station apparatus 11b will be described. Here, the mobile station device 11a and the mobile station device 11b exist in the communicable area of the base station device 10a, and the mobile station device 11a and the mobile station device 11b communicate with each other through the return communication by the base station device 10a. It is assumed that wireless communication is performed with the mobile station apparatus 11. In addition, between the other base station apparatus 10 and the other mobile station apparatus 11 which comprise the radio | wireless communications system 1, it is a radio | wireless equivalent to the radio | wireless communication process performed between the base station apparatus 10a, the mobile station apparatus 11a, and the mobile station apparatus 11b. Perform communication processing.

  Here, in this embodiment, press talk on / off represents a state in the base station device 10 or the mobile station device 11. A state in which a signal (SB0) for establishing wireless communication or a voice signal (TCH) serving as main information of wireless communication is being transmitted to another base station device 10 or mobile station device 11 is referred to as press talk on. In addition, a state in which establishment of wireless communication is canceled and transmission of TCH is stopped is referred to as press talk-off.

FIG. 2 is a diagram illustrating a functional configuration of the base station apparatus 10a in the wireless communication system 1 of the present embodiment. In addition, the other base station apparatus 10 which comprises the radio | wireless communications system 1 is also the same structure as the base station apparatus 10a.
Here, the functional configuration of the base station apparatus 10a will be described with reference to FIG. As illustrated in FIG. 2, the base station device 10 a includes a control unit 100, a wireless communication unit 101, an ID holding unit 102, a detection unit 103, a line communication unit 104, and an ID transmission instruction unit 105. In addition, the wireless communication unit 101 includes a transmission unit 1011 and a reception unit 1012. The base station apparatus 10a may have a functional configuration other than the above.

  The control unit 100 controls various processes in the base station device 10a. Specific processing of the control unit 100 in the present embodiment will be described later. The wireless communication unit 101 uses the transmission unit 1011 and the reception unit 1012 to mutually communicate SB0, TCH, etc. with the mobile station device 11 existing in the communicable area among the plurality of mobile station devices 11. The signal is transmitted and received wirelessly. The ID holding unit 102 is an aspect of the identification information holding unit, and holds predetermined ID information based on an input signal from the control unit 100. The detection unit 103 detects that the plurality of mobile station apparatuses 11 and the own apparatus have changed from press talk on to press talk off. The line communication unit 104 communicates with the command system apparatus 13 and the other base station apparatus 10 via the line control apparatus 12. The ID transmission instruction unit 105 is an aspect of the identification information transmission instruction unit, and instructs the transmission unit 1011 to transmit the ID information of the own device or the ID information held in the ID holding unit when a predetermined requirement is satisfied.

  Here, specific means for detecting the press talk-off in the mobile station apparatus 11 by the detection unit 103 will be described. For example, when the press talk-off in the mobile station apparatus 11 is received, a press talk-off signal is received from the mobile station apparatus 11. A mode of receiving and detecting via the unit 1012 is conceivable. Alternatively, the receiving unit 1012 of the base station apparatus 10a may detect “press talk off” on condition that the TCH emitted from the mobile station apparatus 11 is not received for a predetermined period. However, in the present embodiment, the specific means is not limited to the above-described mode as long as it can detect that the own apparatus (base station apparatus 10a) and the mobile station apparatus 11 have transitioned from press talk on to press talk off.

  Next, in the wireless communication system 1 of the present embodiment, a flow of a series of processes performed using the above-described base station device 10a will be described in order.

  FIG. 3 shows a first processing sequence when a mobile station call (broadcast communication of a mobile station) overlaps during a base station call (base station simultaneous communication) in the wireless communication system 1 of the present embodiment. FIG. Note that the base station device 10a of the wireless communication system 1 described here does not perform a return call of a mobile station call when a mobile station call overlaps during a base station call. (Downlink communication) is prioritized and transmitted to the mobile station apparatus 11. Further, it is assumed that the mobile station device 11a and the mobile station device 11b exist within the communicable area of the base station device 10a, and the processing sequence shown in FIG. 3 is the base station device 10a, the mobile station device 11a, and the mobile station. The figure shows processing of wireless communication (uplink communication, downlink communication, and loopback communication) performed between the devices 11b. The processing sequence is similarly performed in wireless communication between the other base station device 10 and the mobile station device 11.

  The processing sequence shown in FIG. 3 shows processing when a transmission signal is received from the mobile station device 11b during simultaneous downlink communication from the base station device 10a. First, the base station apparatus 10a first transmits SB0, which is a signal for establishing synchronization, via the transmission unit 1011 when the press talk is turned on in the own apparatus (step S31), and then transmits TCH. A call is made (step S32). The mobile station device 11a and the mobile station device 11b receive the SB0 and TCH from the base station device 10a. Note that the mobile station apparatus 11a and the mobile station apparatus 11b acquire the ID information of the base station apparatus 10a by SB0 from the base station apparatus 10a, and display the acquired ID information using an appropriate display unit. .

  Here, it is assumed that the base station apparatus 10a is turned on by press communication in the mobile station apparatus 11b during the TCH transmission. The mobile station device 11b first transmits SB0, which is a signal for establishing synchronization, when the press talk is turned on (step S33). Here, the base station apparatus 10a receives the SB0 via the receiving unit 1012, and establishes communication synchronization during the reception.

  And the control part 100 of the base station apparatus 10a of this embodiment acquires ID information (ID information of the mobile station apparatus 11b itself) included in SB0 received from the mobile station apparatus 11b, which is received via the receiving unit 1012. . Then, the control unit 100 inputs the ID information to the ID holding unit 102 and holds it.

  On the other hand, in step S33, the transmitting unit 1011 of the base station apparatus 10a is transmitting the TCH of the own apparatus to the mobile station apparatus 11a and is transmitting the TCH with priority. The SB0 received from the device 11b is not sent back. Therefore, in step S33, the mobile station apparatus 11a and the mobile station apparatus 11b do not receive SB0 transmitted by the mobile station apparatus 11b. The mobile station device 11b transmits a TCH following SB0 (step S34), but the base station device 10a does not transmit the TCH in the same manner as SB0, so the mobile station device 11a and the mobile station device 11b Also does not receive.

  Next, it is assumed that the telephone call (TCH transmission) from the base station device 10a is finished and the base station device 10a is turned off by press talk (step S35). At this time, the mobile station device 11b is kept on press talk from step S33. In this case, the base station apparatus 10a is in a state where the TCH from the mobile station apparatus 11b can be sent back.

  Here, in the wireless communication system 1 according to the present embodiment, when the base station apparatus 10a is in a press talk-off state, first, the detection unit 103 in the own apparatus detects that the own apparatus has changed from press talk on to press talk off. To do. At the stage of detecting that the own device has changed from press talk on to press talk off, the detection unit 103 has not detected that the mobile station device 11b has changed from press talk on to press talk off (ie, the base station). The station device 10a recognizes that “the mobile station device 11b maintains the press talk on”).

  And when the detection part 103 satisfy | fills the said conditions, ID transmission instruction | indication part 105 outputs ID transmission instruction | indication toward the transmission part 1011 of an own apparatus. Then, the transmitting unit 1011 returns SB0 including the ID information of the mobile station device 11b held in the ID holding unit 102 in the step S33 prior to returning the TCH from the mobile station device 11b. It transmits to the apparatus 11a and the mobile station apparatus 11b (step S36). The mobile station apparatus 11a establishes communication synchronization while receiving the SB0, identifies ID information included in the SB0 (that is, ID information of the mobile station apparatus 11b), and uses the appropriate display unit to identify the ID. Display information.

  Finally, even after the base station device 10a is turned off in step S35, the mobile station device 11b is still in the press talk state and transmits a TCH (step S37). The base station apparatus 10a returns the TCH from the mobile station apparatus 11b as it is. Then, the mobile station device 11a receives the TCH until the mobile station device 11b is pressed off (step S38). In addition, when it is detected that the call (TCH transmission) from the mobile station device 11b is finished and the detection unit 103 has shifted to press talk-off, the ID holding unit 102 stores the ID information of the held mobile station device 11b. Discard (the same applies to the case where the mobile station apparatus 11b press-offs before the base station apparatus 10a press-offs).

According to the first processing sequence of the wireless communication system 1 according to the present embodiment, the base station apparatus 10a is turned off in step S35, and the speaker (TCH source) is transferred from the base station apparatus 10a to the mobile station apparatus 11b. When switched, the mobile station apparatus 11a switches the display of the transmission source from the ID information of the base station apparatus 10a to the ID information of the mobile station apparatus 11b. This is because the base station apparatus 10a temporarily holds the ID information from SB0 transmitted by the mobile station apparatus 11b in step S33, and then the own apparatus becomes a press talk-off (step S35). This is based on a process (step S36) of transmitting SB0 including the ID information of the mobile station apparatus 11b held when the TCH of the apparatus 11b can be returned.
Therefore, according to the wireless communication system 1 according to the present embodiment, the operator of the mobile station apparatus 11a that is the transmission destination of the audio signal can transmit the speech even if the mobile station call overlaps during the base station call. It can be recognized that the person has switched from the base station apparatus 10a to the mobile station apparatus 11b.

  FIG. 4 is a diagram showing a second processing sequence when a mobile station call (mobile station individual communication) overlaps during a base station call (base station individual communication) in the wireless communication system 1 of the present embodiment. It is. Note that the base station device 10a of the wireless communication system 1 described here gives priority to the mobile station call without making the base station call if the mobile station call overlaps during the base station call. And outgoing (return communication). Further, it is assumed that the mobile station device 11a and the mobile station device 11b exist within the communicable area of the base station device 10a, and the processing sequence shown in FIG. 4 is the base station device 10a, the mobile station device 11a, and the mobile station. The figure shows processing of wireless communication (uplink communication, downlink communication, and loopback communication) performed between the devices 11b. The processing sequence is similarly performed in wireless communication between the other base station device 10 and the mobile station device 11.

  The processing sequence shown in FIG. 4 shows processing when a transmission signal is received from the mobile station device 11b during downlink communication from the base station device 10a. First, when the press talk is turned on, the base station device 10a first transmits SB0 that is a signal for establishing synchronization via the transmission unit 1011 (step S41), and then transmits TCH ( Step S42). The mobile station device 11a and the mobile station device 11b receive the SB0 and TCH from the base station device 10a. Note that the mobile station apparatus 11a and the mobile station apparatus 11b acquire the ID information of the base station apparatus 10a by SB0 from the base station apparatus 10a, and display the acquired ID information using an appropriate display unit. .

  Here, it is assumed that the base station apparatus 10a is in a press talk-on state in the mobile station apparatus 11b during TCH transmission. The mobile station apparatus 11b first transmits SB0 that is a signal for establishing synchronization when the press talk is turned on (step S43). Here, the base station apparatus 10a receives the SB0 via the receiving unit 1012, establishes communication synchronization during the reception, stops TCH transmission in the own apparatus, and instead uses the received SB0 as it is. Calls are sent back via the sending unit 1011. The mobile station device 11a receives SB0 (originally transmitted by the mobile station device 11b) retransmitted by the base station device 10a. The mobile station apparatus 11a and the mobile station apparatus 11b establish communication synchronization while receiving the SB0, identify the ID information included in the SB0, and display the ID information using an appropriate display unit.

  Subsequently, the mobile station apparatus 11b transmits a TCH (step S44). The base station apparatus 10a loops back and transmits the TCH received from the mobile station apparatus 11b as in the above-described SB0, while stopping the transmission of the TCH of the own apparatus. The mobile station apparatus 11a and the mobile station apparatus 11b receive the TCH (originally transmitted by the mobile station apparatus 11b) transmitted back from the base station apparatus 10a.

  Next, it is assumed that the call (TCH transmission) from the mobile station device 11b is terminated and the press talk-off is performed in the mobile station device 11b (step S45). At this time, the base station apparatus 10a is kept on press talk from step S41. In this case, the base station apparatus 10a is in a state where it can transmit a TCH in itself.

  Here, in the wireless communication system 1 of the present embodiment, when the press talk-off is performed in the mobile station device 11b, first, the detection unit 103 in the base station device 10a transitions from the press talk-on to the press talk-off in the mobile station device 11b. Detecting that Then, at the stage of detecting that the mobile station device 11b has changed from press talk on to press talk off, the detection unit 103 has not detected that the own device has changed from press talk on to press talk off (that is, the base station). The station device 10a recognizes that “the device itself maintains the press talk on”).

  And when the detection part 103 satisfy | fills the said conditions, ID transmission instruction | indication part 105 outputs ID transmission instruction | indication to the transmission part 1011 of an own apparatus. Then, before transmitting the TCH from the own device (base station device 10a) again, the transmitting unit 1011 transmits SB0 including the ID information of the own device to the mobile station device 11a and the mobile station device 11b (step S46). ). The mobile station apparatus 11a establishes communication synchronization while receiving the SB0, identifies the ID included in the SB0 (that is, the ID of the base station apparatus 10a), and uses the appropriate display unit to identify the ID information. indicate.

  Finally, the base station apparatus 10a transmits the TCH from the own apparatus following the SB0 (step S47). Then, the mobile station apparatus 11a receives the TCH until the base station apparatus 10a is pressed off (step S48).

According to the second processing sequence of the wireless communication system 1 according to the present embodiment, the mobile station apparatus 11b is turned off in step S45, and the transmitter (TCH source) is transferred from the mobile station apparatus 11b to the base station apparatus 10a. When switched, the mobile station apparatus 11a switches the display of the transmission source from the ID information of the mobile station apparatus 11b to the ID information of the base station apparatus 10a. This is a process of transmitting SB0 including the ID information of the own device prior to the second transmission of the TCH when the base station device 10a can transmit the TCH of the own device again (step S45). This is based on step S46).
Therefore, according to the wireless communication system 1 according to the present embodiment, the operator of the mobile station apparatus 11a that is the transmission destination of the audio signal can transmit the speech even if the mobile station call overlaps during the base station call. Can recognize that the person has switched from the mobile station apparatus 11b to the base station apparatus 10a.

  In the above description, the base station apparatus 10a itself is described as being the subject of the press talk-on operation and the radio signal transmission operation toward the mobile station apparatus 11, but actually these operations are performed. Is based on the operation of the operator on the command stand 131. That is, based on the operator's press talk-on operation on the command board 131 and the designation of a predetermined base station apparatus 10, the designated base station apparatus 10 becomes press talk-on based on the designation. The voice signal of the operator of the command board 131 input to the line communication unit 104 is transmitted to the predetermined mobile station apparatus 11.

  Further, in the wireless communication system 1 of the present embodiment, the state transition to press talk on and press talk off is a press talk switch (not shown) provided in each mobile station device 11 and base station device 10 (command stand 131). )). However, the state transition means of the press talk on and the press talk off is not limited to the above-described means. For example, the press talk on / off process can be performed by detecting the presence or absence of the transmission voice of the operator.

In the first processing sequence in the wireless communication system 1 of the present embodiment, an example is shown in which the communication types of the base station apparatus 10 and the mobile station apparatus 11 are both simultaneous communication. For example, individual communication) or different communication types may be used. Similarly, also in the second processing sequence, the communication type between the base station device 10 and the mobile station device 11 may be another communication type.
Further, when the mobile station apparatus 11 receives the return transmission signal from the base station apparatus 10 that is the transmission source of the mobile station apparatus 11, the mobile station apparatus 11 may not display the transmission source ID information on the display unit. It is not necessary to output the sound.
Further, when the press talk is off, an idle signal indicating that the speaker is in an idle state may be transmitted by TCH. In this case, the mobile station apparatus may receive the idle signal and turn off the display of the ID information displayed on the display unit.

<Second Embodiment>
Next, the radio | wireless communications system by 2nd embodiment of this invention is demonstrated with reference to drawings.
FIG. 5 is a first diagram showing a configuration of the wireless communication system 2 according to the second embodiment of the present invention.
As shown in FIG. 5, the radio communication system 2 includes a plurality of base station devices 20 (base station device 20a, base station device 20b...), A plurality of mobile station devices 21 (mobile station device 21a, mobile station device 21b,. ..), A line control device 22 and a command system device 23 are provided. In addition, the command system device 23 includes a command table 231 and a command control device 232.

  A plurality of base station apparatuses 20 (base station apparatus 20a, base station apparatus 20b...) Are self-communication areas among a plurality of mobile station apparatuses 21 (mobile station apparatus 21a, mobile station apparatus 21b...). A wireless communication line is established with the mobile station apparatus 21 existing in the mobile station apparatus 21 to perform wireless communication. The plurality of mobile station apparatuses 21 perform wireless communication with a mobile station apparatus 21 that can communicate with each other among the plurality of base station apparatuses 20. The line control device 22 controls a communication line network between the plurality of base station devices 20 or the command system device 23, and establishes a communication line between predetermined devices in accordance with an instruction. The command stand 231 outputs a command signal based on the operation of the operator to the command control device. The command control device 232 issues an instruction to the line control device 22 to establish a communication line between the command base 231 and the mobile station device 21 designated by the operator via the command base 231, and the command base 231 designates The line and base station apparatus 20 for performing wireless communication with the mobile station apparatus 21 are selected. In the present embodiment, the line control device 22 has a function as a wireless communication device.

In the following description, a communication process performed between the base station device 20a, the base station device 20b, the mobile station device 21a, the mobile station device 21b, and the line control device 22 will be described. Here, the mobile station device 21a exists within the communicable area of the base station device 20a and outside the communicable area of the base station device 20b, and within the communicable area of the base station device 20b and the base station device 20a. Consider a case where the mobile station device 21b exists outside the communicable area. In this case, in order to communicate with each other between the mobile station device 21a and the mobile station device 21b, the line control device 22 mediates the line communication between the base station device 20a and the base station device 20b. In addition, between the other base station apparatus 20 and the other mobile station apparatus 21 which comprise the radio | wireless communications system 2, it is between the base station apparatus 20a, the base station apparatus 20b, the mobile station apparatus 21a, the mobile station apparatus 21b, and the line control apparatus 22. The communication process equivalent to the communication process performed in is performed.
Note that the definition of press talk on / off in the present embodiment and the specific means thereof are the same as those described in the first embodiment.

FIG. 6 is a diagram illustrating a functional configuration of the line control device 22 and a plurality of base station devices 20 (base station device 20a, base station device 20b...) In the wireless communication system 2 of the present embodiment.
Here, functional configurations of the line control device 22 and the plurality of base station devices 20 will be described with reference to FIG. As illustrated in FIG. 6, the base station device 20 a includes a wireless communication unit 201, and the wireless communication unit 201 includes a transmission unit 2011 and a reception unit 2012. (Although not shown, the other base station apparatus 20 has a functional configuration equivalent to that of the base station apparatus 20a). The line control device 22 includes a control unit 220, a line switching unit 221, an ID holding unit 222, a detection unit 223, and an ID transmission instruction unit 224. The base station device 20a and the line control device 22 may have a functional configuration other than the above.

  The wireless communication unit 201 of the base station device 20a uses the transmitting unit 2011 and the receiving unit 2012 to mutually communicate with the mobile station devices 21 existing within the communicable area among the plurality of mobile station devices 21. Signals such as SB0 and TCH are transmitted and received wirelessly. The line communication unit 204 communicates with the command system apparatus 23 and the other base station apparatus 20 via the line control apparatus 22.

  The control unit 220 of the line control device 22 controls various processes in the line control device 22. The line switching unit 221 mediates communication by sequentially switching lines between the plurality of base station apparatuses 20 and the command control apparatus 232. The ID holding unit 222 is an aspect of the identification information holding unit, and holds predetermined ID information based on an input signal from the control unit 220. The detection unit 223 detects that the plurality of mobile station apparatuses 21 and the plurality of base station apparatuses 20 have changed from press talk on to press talk off. The ID transmission instruction unit 224 is an aspect of the identification information transmission instruction unit, and the mobile station device 21 receives the ID information held in the ID holding unit 222 or the ID information of the base station device 20 itself in the base station device 20. Give instructions to make a call to.

  In the wireless communication system 2 according to the present embodiment, a series of processing sequences performed using the line control device 22 and the plurality of base station devices 20 described above are the processes of the first embodiment described with reference to FIGS. It is equivalent to a sequence. Specifically, the line control device 22 performs a predetermined process performed by the base station device 10a in the first embodiment instead of the base station device 10a.

  For example, in step S33 in FIG. 3, the control unit 220 included in the line control device 22 holds the ID information of the mobile station device 21b received via the base station device 20a as the ID holding included in the own device (line control device 22). Held in the unit 222. Also, in step S36 in FIG. 3, the ID information of the mobile station device 21b held in the ID holding unit 222 of the own device (line control device 22) in step S33 is transferred to the mobile station device 21a and the base station device 20a. It transmits to the mobile station apparatus 21b. Here, the ID transmission instruction unit 224 provided in the own device (line control device 22) directs the ID information held in the ID holding unit 222 to the mobile station device 21a and the mobile station device 21b with respect to the base station device 20a. Instruct them to make a call.

  As described above, instead of the control unit 100, the ID holding unit 102, and the detection unit 103 included in the base station device 10a and the other base station device 10 in the first embodiment, line control in the second embodiment. The present invention can also be implemented by using the control unit 220, the ID holding unit 222, and the detection unit 223 included in the device 22. In this case, the base station device 20a and the other base station device 20 may or may not include an ID holding unit and a detection unit.

  In addition, according to the wireless communication system 2 of the second embodiment, the effect of the invention can be obtained even in wireless communication between mobile station devices 21 existing in areas where different base station devices 20 can communicate. . That is, according to the wireless communication system 2 according to the present embodiment, the operator of the mobile station apparatus 21a that is the transmission destination of the audio signal is sent from the base station apparatus 20a to the outside of the communication area of the base station apparatus 20a. It can be recognized that the mobile station apparatus 21b is switched to an existing mobile station apparatus 21b.

  In the wireless communication system 2 of the present embodiment, even if the command control device 232 includes the control unit 220, the ID holding unit 222, the detection unit 223, and the ID transmission instruction unit 224 provided in the line control device 22. Good. In this case, the command control device 232 has a function as a wireless communication device.

FIG. 7 is a second diagram showing the configuration of the wireless communication system 2 according to the second embodiment of the present invention.
As illustrated in FIG. 7, the line control device 22 transmits the communication information via the command control device 232 when mediating communication between the base station devices 20.
Here, for example, in step S33 in FIG. 3, when the command control apparatus 232 receives the communication information, the control unit 220 included in the command control apparatus 232 receives the communication information via the base station apparatus 20a and the line control apparatus 22. The ID information of the mobile station device 21b is held in the ID holding unit 222 provided in the own device (command control device 232). Further, in step S36 in FIG. 3, the ID information of the mobile station device 21b held in the ID holding unit 222 of the own device (command control device 232) in step S33 is transmitted via the line control device 22 and the base station device 20a. To the mobile station device 21a and the mobile station device 21b. Here, the ID transmission instruction unit 224 provided in the own device (command control device 232) directs the ID information held in the ID holding unit 222 to the mobile station device 21a and the mobile station device 21b with respect to the base station device 20a. Instruct them to make a call.
As described above, even if the command control device 232 includes the control unit 220, the ID holding unit 222, and the detection unit 223 included in the line control device 22, the effect of the invention can be obtained.

FIG. 12 is a block diagram showing the minimum configuration of the wireless communication apparatus according to the present invention.
Wireless communication devices such as the base station device, line control device, command control device, and mobile station device described above detect that at least one of the plurality of wireless communication devices has changed from press talk on to press talk off. A detection unit 301 is provided. In addition, the wireless communication device identifies the wireless communication device that maintains the press talk on among the plurality of wireless communication devices when any of the plurality of wireless communication devices changes from the press talk on to the press talk off. An identification information transmission instructing unit 302 for instructing transmission of information is provided.

  The base station device 10, the line control device 22, the command control device 232, and the mobile station device 11 described above have a computer system therein. Each process described above is stored in a computer-readable recording medium in the form of a program, and the above process is performed by the computer reading and executing the program. Here, the computer-readable recording medium refers to a magnetic disk, a magneto-optical disk, a CD-ROM, a DVD-ROM, a semiconductor memory, and the like. Alternatively, the computer program may be distributed to the computer via a communication line, and the computer that has received the distribution may execute the program.

1, 2, ... Wireless communication systems 10, 20, 40 ... Base station devices 100, 220 ... Control units 101, 201 ... Wireless communication units 1011, 2011 ... Transmission units 1012, 2012 ... Reception units 102, 222 ... ID holding units 103, 223 ... detection units 104, 204 ... line communication units 105, 224 ... ID transmission instruction units 11, 21, 41 ... mobile station devices 12, 22 ... line control device 221 ... line switching unit 13, 23 ... command system devices 131, 231 ... command board 132, 232 ... command control device 301 ... detection unit 302 ..Identification information transmission instruction section

Claims (9)

When the press talk is turned on, the base station device of the wireless communication system composed of a base station device and a mobile station device that first transmits identification information of the device itself and subsequently transmits main information,
An identification information holding unit that acquires and holds identification information transmitted by the mobile station device that has become press talk-on when the mobile station device is turned on by press talk while the device's press talk on is maintained; ,
When the mobile station device that has changed to press talk-off and the mobile station device that has become press talk-on has not changed to press talk-off, a transmitting unit that transmits the held identification information;
A base station apparatus comprising: The identification information holding unit
When the press-talk on the since the mobile station apparatus is transitioned to the press-to-talk-off, discards the held identification information
The base station apparatus according to claim 1 . When the press talk is turned on, the base station device of the wireless communication system composed of a base station device and a mobile station device that first transmits identification information of the device itself and subsequently transmits main information,
When the press talk is turned on, it is equipped with a transmitter that first transmits the identification information of the device, and then transmits the main information.
When the mobile station apparatus is in a press talk on state while the press talk on of the own apparatus is maintained, the transmitting unit includes the identification information transmitted by the mobile station apparatus in which the press talk is on, and the identification information. Subsequently, the main information transmitted by the mobile station device that has become the press talk is acquired and transmitted,
When the mobile station device that has become press talk-on changes to press talk-off and the device does not change to press-talk off, the identification information of the device itself is transmitted again.
Base station device. When the press talk is turned on, a wireless communication system composed of a base station device and a mobile station device that first transmits identification information of the device itself and subsequently transmits main information,
An identification information holding unit that acquires and holds identification information transmitted by the mobile station device that has become press talk-on when the mobile station device is turned on by press talk while the device's press talk on is maintained; ,
When the mobile station device that has changed to press talk-off and the mobile station device that has become press talk-on has not changed to press talk-off, a transmitting unit that transmits the held identification information;
A wireless communication system comprising: When the press talk is turned on, a wireless communication system composed of a base station device and a mobile station device that first transmits identification information of the device itself and subsequently transmits main information,
When the press talk is turned on, it is equipped with a transmitter that first transmits the identification information of the device, and then transmits the main information.
When the mobile station apparatus is in a press talk on state while the press talk on of the own apparatus is maintained, the transmitting unit includes the identification information transmitted by the mobile station apparatus in which the press talk is on, and the identification information. Subsequently, the main information transmitted by the mobile station device that has become the press talk is acquired and transmitted,
When the mobile station device that has become press talk-on changes to press talk-off and the device does not change to press-talk off, the identification information of the device itself is transmitted again.
Wireless communication system. A wireless communication method for establishing wireless communication between a base station device and a mobile station device that first transmits identification information of the device itself and then transmits main information when the press talk is turned on,
When the mobile station device is pressed to talk while the device's press talk on is maintained, the identification information transmitted by the mobile station device that has become the press talk is acquired and held,
When the mobile station device that has changed to press talk-off and the mobile station device that has become press-talk on has not changed to press-talk off, the held identification information is transmitted.
Wireless communication method. A wireless communication method for establishing wireless communication between a base station device and a mobile station device that first transmits identification information of the device itself and then transmits main information when the press talk is turned on,
When the press talk is turned on, first send the identification information of the device, then send the main information,
When the mobile station apparatus is in a press talk on state while the device's press talk on is maintained, the identification information transmitted by the mobile station apparatus in which the press talk is on, and the press talk on following the identification information. The main information sent by the mobile station device that became
When the mobile station device that has become press talk-on changes to press talk-off and the device does not change to press-talk off, the identification information of the device itself is transmitted again.
Wireless communication method. A computer that establishes wireless communication between a base station device and a mobile station device that first transmits identification information of the device itself and then transmits main information when the press talk is turned on.
An identification information holding unit that acquires and holds identification information transmitted by the mobile station device that has become press talk-on when the mobile station device is turned on by press talk while the device's press talk on is maintained; ,
Transmitting section for transmitting the held identification information when the own apparatus is in a press talk-off state and the mobile station apparatus in which the press talk is on is not in a press talk-off state
Program to function as. A computer that establishes wireless communication between a base station device and a mobile station device that first transmits identification information of the device itself and then transmits main information when the press talk is turned on.
When the press talk is turned on, it is a transmitter that first transmits the identification information of the device, and then transmits the main information,
When the mobile station apparatus is in a press talk on state while the device's press talk on is maintained, the identification information transmitted by the mobile station apparatus in which the press talk is on, and the press talk on following the identification information. The main information sent by the mobile station device that became
Transmitting unit for transmitting the identification information of the own device again when the mobile station device that has become the press talk-on transitions to press talk-off and the own device does not transition to press-talk off
Program to function as.

Images