JPS6166425A - Mca radio communication equipment - Google Patents

Abstract

PURPOSE:To utilize a data relating to the moving state of a mobile station at a control station by transmitting the 2nd radio zone number at a moved location and the leaving state from the 1st radio zone. CONSTITUTION:An MCA radio communication equipment has a reception circuit 2 and a transmission circuit 4. The transmission circuit 4 transmits an incoming enable data representing an incoming enable at the standby state based on the 1st zone index and transmits and advance notice data generated to make an advance notice from the 1st radio zone to the 2nd radio zone when the 2nd zone index is designated. A CPU6 is connected to the transmission circuit 4, a RAM7, a ROM8, an FFG0 and a display device 12 are connected to the said CPU6 via a data bus 9 and a zone index designation button 11 is connected to the FFG0.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to an MCA wireless communication device, and more particularly to an MC wireless communication device capable of local wide area communication and nationwide wide area communication.

[Technical background of the invention and its problems]

The MCA system consists of an MCA control station, an MCA, and a group of participating stations equipped with wireless communication equipment. Furthermore, a unit subscriber station group is composed of a command station and a mobile station. MCA system is 800
The MHz band is divided into 25 blocks, and each unit block consists of one control channel and 15 communication channels.

The subscriber station has a circuit configuration corresponding to the upper and lower channels of 25 blocks and 399 lines, and can use the circuits within the range stored in the built-in identification ROM. The whole country is divided into the Zoo Regional Radio Control Bureau and the Okinawa Post Administration Office, and within each regional radio control station, multiple systems consisting of the above unit blocks are installed. Further, a plurality of subscriber stations subscribe to one system for each group, and a user code is assigned to this subscriber station group. An electrical equipment code is given to identify the local radio control bureau, and a system number is given to identify the system. The electrical equipment code, system number, and user code are called group codes. The zone index consists of this group code and channel numbers (control channel number and speech channel number). Since the MCA system uses simplex communication, an MCA land mobile repeater is installed at the MCA control station that uses the above group code as the number for incoming and outgoing calls. The control signal Fd shown below is transmitted. Downlink control signal F
d is pit synchronization dl (16 bits), frame synchronization dm
(15 bits), first block data d3 (72 bits, effective data is 30 bits), and second block data d4 (72 bits, effective data is 30 bits). The second block data d4 is for incoming calls, and includes group codes and designated call channel numbers. Second
The professional data d4 is "allO" when there is no incoming call. Normally, a system code consisting of an electrical equipment code and a system number is transmitted from the MCA @ several stations via the downlink control channel to the first program, the system code consisting of the electrical equipment code and the system number. R for identification at participating stations
Set the receiving circuit according to the control channel stored in the OM, and test whether the system code transmitted from the MCA control station matches the system code stored in the identification ROM. cormorant. When the test is OK, the standby program waits for an incoming call.6 Calls are made by transmitting the upper control signal F shown in Fig. 2 via the upper control channel when the test is OK. cormorant. The upper control signal Fυ is bit synchronization U11 frame synchronization U! and call data U
, consists of. As shown in FIG.
BiF)), destination system b, (4 to 9 bits, g), spare, (10 to 15 pits), electrical equipment code bs (16 to 19
It consists of a bit (bits), a system number (bits 20 to 25), and a user code b7 (bits 26 to 35).

When the mobile station moves outside the wireless zone, it is unable to receive time slot information (frame synchronization signal) periodically transmitted from the MCA control station, making it impossible to make or receive calls. Also, even if you are within the wireless zone, if the zone index does not match the time slot information, a call will be made.
Incoming calls are also disabled. A mobile station has up to eight zone indexes and can communicate in each wireless zone. Areas with the same electrical codes in the zone index are called local wide-area communications, and areas with different electrical codes are called nationwide wide-area communications, and the zone index can be specified manually. This function is not added to the command station because there is no need to have multiple zone indexes. When a mobile station moves out of range of a wireless zone, it verbally tells the command station where it is going. When it comes within range, it specifies the corresponding zone index and tells the command station that it is now able to communicate. must be notified. The location information of a mobile station, which is used by a command station to understand the status of its affiliated mobile stations, is often referred to when a call is received from the command station to the mobile station. It is inappropriate to inform the public by oral communication.

[Purpose of the invention]

The present invention has been made in order to eliminate the above-mentioned drawbacks, and it automatically transmits location data of a mobile station when performing wide area communication within a jurisdiction or wide area nationwide, and makes it possible to appropriately refer to the location data. The purpose of the present invention is to provide an MCA wireless communication device that is easy to use.

[Summary of the invention]

The present invention includes a transmitting means for transmitting call-ready data indicating that a call can be received when a standby state is established corresponding to the first zone index, and a second zone index specified in the call-ready state. At this time, changes to the second zone index are suspended. This hold occurs when the mobile station
This continues until the mobile device moves out of the wireless zone of gl, and during this time it transmits advance notice data that foretells the movement from the first wireless zone to the second wireless zone.

[Embodiments of the invention]

Hereinafter, one embodiment of the MCA wireless communication device according to the present invention will be described in detail with reference to the drawings.

In FIG. 4, FFG 0 is formed by a plurality of flip-flops, and bits 0 to 7 are set in response to depression of zone index designation buttons 0 to Kn. When the power is turned on, the 0 and 7 bits of FFGo are set to "1", and when the zone index designation button is pressed from 0 to Kn, any one of the 0 to 7 bits becomes "1". When the θ bit is “1”, M
ode, when one bit is 1, it is called MoJ.

In the figure, l is an antenna, 2 is a receiving circuit, 3 is a speaker,
4 is a transmitting circuit, 5 is a microphone, 6 is a CPU, 7 is a RAM,
8 is ROM, 10 is address bus, 9 is data bus, 1
2 is the display.

A button operation program 13 shown in FIG. 5 is provided as zone index designation means. The button operation program 13 uses the work memory (field name is written as WK) shown in FIG. In WK, bits 0 to 7 are subfield FGM%, bits 8 to 15 are subfield LSMo
s 16-23 pins, g is subfield LSML,
31 pits are human CTs. Button operation program 1
3 is a time-activated program that is activated every 3.5 seconds by an execution management program (not shown). Note that this 3.5 seconds is generated as 24 times the unit frame of 146 mS related to the transmission/reception speed of 1200 bits/second. When the button operation program 13 is activated, in process 14 Mad0 to Mod7 of FFGo are set in the calculation register R8.

If the set value is not equal to FGM (the subfield name assigned from the 7 reset group memory), a decision is made at step 15, and the numerical value in the calculation register R0 is stored in FGM at step 16. Also ACTo is rlJ
If not, the judgment is made in box 17, and the numerical value of the calculation register R0 is stored in LSMo (subfield name given from line source memo IJQ) in process 18. A.C.
When To is "1" and LS in decision box 19
If the values of Mo and LSMI are not equal, the value of the calculation register Ro is written into LSM in step 21. If they are equal, the numerical value of LSM is set as "all P" in step 22.

At this time, in step 20, ACT is set to rOJ.

The incoming call data transmitting means is incorporated in the power-on program 23 shown in FIG. When the power is turned on, the identification memory (hereinafter referred to as IDM) shown in FIG. 9 is stored at an address modified by LSMo (hereinafter referred to as LSM), which is the electrical equipment code NA and system number NB.

In step 24, the user code NC is transferred to the position of the calling data Usobi,b-1bT of the control signal FU shown in FIG. Further, in process 25, a control channel is set with frequency data 0 to 7 of the address modified with LSMo in the control channel memory (hereinafter referred to as CHM) shown in FIG. If the control channel is captured and the frame synchronization with the lower control signal is established, and the system codes match, then the judgment is made? The test 27 determines whether or not the call acceptance data has already been transmitted. When the incoming town data is not transmitted, the work memory WK shown in Fig. 6 is used.
The 31st bit of ACT is 0.・ACT is “
When the value is 0, ACT is set to 1 in step 29.

Also, in process 30, I
The subfield ND of Dki is taken up and shown in Figure 3 (above).
The control signal F is written into b3 and b4 of the calling data Fυ.

Subfield ND is 0 where the individual subscriber station number is entered.
Since the capacity of individual subscriber stations is 10 to 1000, 10 pins,
It is sufficient. Since bl of the calling data FU is a destination command and b4 is a reserve, the numeric values of bl and bl are read as the individual subscriber station number on the receiving side. In process 31, hex l'-FJ is called data Fg17)
Fill in b, and b snow. bl and b2 are 4 bits, G is O~1
Can express 5. Since 0 is not used, use rooQIJ as a general connection request command.

"0OIOJ is the wide area connection request command. 7-15
15 are defined as data transmission commands.
Let rlllllJ be the incoming call transmission command. 7～
Until 14, Tsuma! r 0111J~r 1110
J t-Mod0 to Mod7 K is made to correspond and assigned to the wireless zone change notice data transmission command.

A number from 7 to 14 indicates the wireless zone number. Since the organization of the call-ready transmission command and the individual subscriber station number to the calling data FU has been completed, the call-ready data is transmitted in step 32. After the transmission is completed, in process 33, the calling data F, Nosu, -b is @
The program changes to all O= and transitions to the standby program 34. If frame synchronization becomes impossible during standby (10) or system code verification becomes impossible (9), judge d. The LUX 5 determines this and returns to the starting address of the power-on program 23. It is determined in box 27 that synchronization cannot be achieved, and Mod0 to . is entered, a decision is made in box 40, and a second group code and a second control channel number are compiled in steps 41 and 42. Finally, in process 41, NA%NB, NC obtained by modifying the IDM address shown in FIG. 9 with φLSMI is used as the calling data U in FIG.
Organize into 3, -b, and b7. In addition, the frequency data θ~7 regarding the control channel corresponding to the CHM glass LSM shown in FIG. 10 is extracted, and the lower multi-control channel is set. Verify capture conditions.

If the test is OK according to MEX44, process 4.
5, LSMIC) transfer the numerical value to I, SMo, LSM,
is set to "all O" in process 46. Furthermore, in process 47, ACT is set to "0". It was determined that this Q flow had moved within the range of the new second wireless zone, so the process 30°31.32 was performed for the new second wireless zone.
Sends call-ready data.

The advance notice data transmitting means for giving advance notice of movement from the first wireless zone to the 20th wireless zone is constituted by a notice transmitting program 48 shown in FIG. The notice transmission program 48 is a time-activated program that is activated every 7 seconds. Since 7 seconds is 48 times the unit frame of 146m5, it is activated once every 48 frame synchronizations. Notice transmission Zorokulam 4B
When started, if the frame synchronization is not reliably established, the advance notice cannot be sent, so the decision is made by the box 49 and control is immediately passed to the execution management program. Also, after turning on the power, go to the standby program 34 7 o
- If there is no L, use button operation program 13 in Figure 5 to switch to button 20.
Since the group code cannot be set, judge &,
Judging by 50 points. Also, if the second group code is not set even if the flow goes to the standby program 34, it will be determined and
Judgment is based on 7+x51. Standby program 34 flow 1. When LSM and KMod 6 to 7 are set, bl and b of the calling data U3 are organized in process 52. As mentioned above, there are eight types of wireless zone change notice data transmission commands: r0111J to rl110J.
Compatible with 8 wireless zones. In process 53, the individual subscriber station number on the sending side is organized into bs and b4 of the calling data U3. This individual subscriber station number corresponds to the first group code F and is indexed by φLSM0. In process 53, the preview data is transmitted, and in process 55, the preview data organized into the calling data U3 is canceled.

In addition, LSMo Mod □ ~ 7 is displayed on 12m of the display unit
The wireless zone number or name of the wireless zone related to the wireless zone is displayed, and the display appears only when Mods 0 to 7 are written in LSM in 12b.

Now, if you stay in the home zone and turn on the power,
Since LSM and LSMl are ``allo'', nothing is displayed on the display 12.Next, after 3.5 seconds, the button operation program 13 is started and FFGoOMOdo is set to LS.
It is entered into Mo. Data regarding the home zone is now displayed on the display 12. Power on program 23
When it turns 2, the lower control channel is set (upper of the home zone) and the standby program 34 is entered. At this time, call acceptance data is transmitted. After this, even if you move outside the home zone, the standby mode will simply be canceled. Even if the user returns to the home scene again, the call acceptance data is not transmitted. The configuration is such that the second zone/main meter cannot be set unless layer call enable data is transmitted even once. Further, once the call acceptance data is transmitted, the first zone index cannot be changed even if frame synchronization cannot be achieved or radio waves cannot be received. If the second zone index is specified and the preview data is sent every 7 seconds, the first zone index will be
This means that the country is no longer under the control of the wireless zone. If the first wireless zone and the second wireless zone are far apart, changing the zone index midway is meaningless, so the first zone index is locked. This is inconvenient because the advance notice data is transmitted again when the user leaves the first wireless zone and heads for the second unrelated zone and returns to the first wireless zone on the way. In order to prevent this, a means for canceling the advance notice data is required. This means is carried out by the judgment game 19 in FIG. When the first zone index and the zone index @2 match, the second zone index becomes "0" and the display on the display 12b disappears. In this case, A
CT is set to ``0'' and an incoming call notification is sent.

In the above embodiment, the call acceptance data and advance notice data are transmitted via the control channel, but they may also be transmitted via the communication channel. The receiving destination of the call availability data and the advance notice data is the MCA control station or the command station, and the r-event is used as appropriate as necessary.

〔Effect of the invention〕

The MCA radio communication gI device according to the present invention includes a call-receivable data transmitting means that indicates that the call is possible when the device enters the standby state based on the first zone index, and a first zone index when the second zone index is specified. Since the structure is equipped with a notice data transmitting means configured to give advance notice from the wireless zone to the second wireless zone, the number of the second wireless zone to which the movement is to be made and the information from the first wireless zone to the first wireless zone are transmitted. It has the feature of being able to send information such as the withdrawal status of the person. This has the advantage that each command station belonging to a unit subscriber station can use data regarding the movement status of the mobile station as needed.

[Brief explanation of the drawing]

FIG. 1 is a data configuration diagram of a downlink control signal, FIG. 2 is a data configuration diagram of an upstream control signal, FIG. 3 is a configuration diagram of calling data related to FIG. 2, and FIG. 4 is a MC according to the present invention. Figure 5 is a 70-chart of the button operation program related to Figure 4, Figure 6 is a field configuration diagram related to Figure 5, Figure 7 is related to Figure 4. Flowchart of the notice sending program, Figure 8 is a flowchart of the power-on program related to Figure 4, Figures 9 and 10 are the flowchart of the power-on program related to Figure 8.
FIG. 3 is a data configuration diagram related to the power-on program shown in FIG. In the figure, 11 is an antenna, 2 is a receiving circuit, 3 is a speaker, 4 is a transmitting circuit, 5 is a microphone, 6 is a CPU, 7 is a simulator,
8 is ROM, 9 is data bus, 10 is address bus, 1
1 is a zone index designation button, 12 is a display, 13 is a button operation program, 14.16, 18, 20, 21, 2
2,24°25.29,30.31.32.33,37
゜38.39,41,42,45,46,47゜52.
53, 54, 55 are processed, 15.17° 19.27, 2
8. 35, 36, 40, 44° 49. 50. 51 is a judgment box, 48 is a notice sending program, 23. is the power-on program. Patent Applicant Yaesu Musen Co., Ltd. Figure 4 Figure 6 Figure W to Figure 7 Figure 10 Procedures Amendment Honor October 11, 1980 Commissioner of the Patent Office Manabu Shiga 1, Indication of Case 1989 Patent Application No. 189091 No. 2, Name of the invention / MCA wireless communication device 3, Relationship with the case of the person making the amendment Patent applicant's residence (1-7-7-4 Yaesu, Chuo-ku, Tokyo 103)
, Date of amendment order 6, Contents of amendment - Figure 6 Figure 7

Claims (1)

[Claims] 1. An identification ROM that stores a zone index organized by a group code consisting of a supervisory code, a system number, and a user code, and a control channel number, and a downlink control signal transmitted from the MCA control station via a downlink control channel. downlink control signal receiving means for receiving a signal based on the control channel number; standby means for waiting for an incoming call in a wireless zone in synchronization with a frame synchronization signal included in the received downlink control signal; An MCA wireless communication device for a mobile station, comprising: zone index designating means for designating one zone index from the plurality of zone indexes stored in the identification ROM; and a first zone index designated by the zone index designating means. call-receiving data transmitting means for transmitting call-receivable data indicating that incoming calls are possible when the standby mode is set based on the zone index of the zone index; advance notice data transmitting means for transmitting advance notice data in order to forewarn the movement of the first wireless zone to the wireless zone, and the advance notice data is configured to be transmitted until the first wireless zone moves out of range MCA wireless communication device.