JP3401375B2 - Wireless channel allocation control method - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a radio channel allocation control system for allocating a vacant radio channel to a mobile station where a call originates in a base station of a mobile communication system.

[0002]

2. Description of the Related Art In recent years, the market of mobile communication systems has been liberalized, and the number of subscribers is rapidly increasing due to the entry and competition of a plurality of communication businesses. Therefore, in such a mobile communication system, in order to reliably allocate a wireless channel to a call that occurs during the busy hour and to provide a service, a plurality of mobile stations transmit a limited frequency of a radio frequency to a TD.
Techniques for sharing under the MA method and reusing in multiple wireless zones have been introduced.

FIG. 29 is a diagram showing a configuration example of a mobile communication system. In the figure, a plurality of radio base stations 161 ₁ to
161 _M are each connected to a base station controller 162 via a communication link, and the base station controller is connected to an exchange 163.
Connected to the public network via. Radio base stations 161 ₁ to 1
61 Any of the radio zone formed by _M, the mobile station 164 ₁ to 164 _N are located.

Further, the mobile station 164 _1, a microphone 165
₁ is an A / D converter (A / D) 166 ₁ and a transmitter 167 ₁
Connected to the input of the antenna control unit 168 ₁ via
The output of the antenna control unit is the reception unit 169 ₁ and D /
It is connected to the receiver 171 ₁ via the A converter (D / A) 170 ₁ . A / D converter 166 ₁ , transmitter 167 ₁ ,
Control terminal of the receiving portion 169 ₁ and the D / A converter 170 ₁ is connected to a corresponding input port of the processor (CPU) 172 _1, the antenna terminal of the antenna control unit 168 _first antenna 173 ₁ is connected. The mobile station 164
The structure of ₂ to 164 _N, since it is same as the configuration of the mobile station 164 _1, the number appended to the corresponding component here and it will be granted a same sign to "2" to "N",
The illustration and description thereof are omitted.

In the mobile communication system having such a configuration,
For example, a call signal which the mobile station 164 ₁ transmits located radio zone formed by the radio base station 161 ₁ is received by the radio base station 161 _1, and provided to base station controller 162 is demodulated. Base station controller 16
2, a radio channel management table indicating whether the radio channel is allocated to any call radio base station 161 ₁ to 161 _M has a separate, geographically each other in the radio zone in which these wireless base station forms An adjacent zone management table indicating adjacent wireless zones. Furthermore, the base station controller 162, the calling signal described above is given, among the radio base station 161 ₁ to 161 _M, which the calling signal is received (hereinafter, referred to as "serving station".) The wireless channel management table is searched for an empty wireless channel at that time, and if there is any empty wireless channel, the wireless channel is captured. However, on the contrary, when there is no such vacant wireless channel, the base station control device 162 refers to the adjacent zone management table, and thereby the wireless zone adjacent to the wireless zone formed by the serving station described above. (Hereinafter, referred to as “adjacent zone”), and similarly, vacant wireless channels are searched for in these adjacent zones. Furthermore, the base station controller 16
2, if any vacant radio channel in this way is obtained, the mobile station 164 ₁ channel specifying information indicating the radio channel through the radio base station 161 ₁
To notify.

On the other hand, in the mobile station 164 ₁ , the processor 1
When 72 ₁ takes in the channel designation information notified in this way through the antenna 173 ₁ , the antenna control unit 168 ₁ and the receiving unit 169 ₁ and recognizes it, based on a predetermined radio channel setting control procedure. , And sets the transmitting unit 167 ₁ and the receiving unit 169 ₁ in a state in which the wireless channel indicated by the channel designation information is accessible.

Under the above procedure, when the outgoing call of the local station is a completed call as described above, the microphone 16
The call signal acoustically-electrically converted by 5 ₁ is A / D
The signal is converted into a digital signal by the converter 166 ₁ , converted into a radio frequency signal by the transmitting unit 167 ₁ , and transmitted to the radio base station 161 ₁ via the antenna control unit 168 ₁ and the antenna 173 ₁ . Further, the call signal issued by the other party is digitally wirelessly transmitted through the exchange 163, the base station control device 162 and the radio base station 161 _1, and is transmitted through the antenna 173 ₁ , the antenna control unit 168 ₁ and the receiving unit 169 ₁ . It is demodulated, demodulated, restored to an analog signal by the D / A converter 170, and then applied to the receiver 171 ₁ .

In the following, a continuity check is performed prior to the start of a call for the radio channel assigned by the base station controller 162 as described above, and a disconnection when there is no radio channel to be assigned to the call that has occurred. The process and other procedures of the wireless channel setting control are not related to the present invention, and any known technique can be applied, and thus the description thereof will be omitted.

[0009]

By the way, in the above-mentioned conventional example, either a digital radio transmission system such as TDMA system or TDD system or an analog radio transmission system such as FDMA system is applied as the radio transmission system. In order to adapt to the maximum traffic during busy hours, since the wireless channel is allocated to each call,
It was required to secure as many wireless channels as the number of simultaneous callers calculated based on the amount and distribution of traffic for each wireless zone.

However, if such a large number of radio channels are secured, the cost related to the operation of the system increases as the busy hour traffic concentration ratio increases, and the traffic concentration degree is increased especially in the central part of the capital. In large areas it was difficult to adapt simply by reusing radio frequencies. In addition, it is possible to construct a system by applying a high radio frequency band to overcome such difficulties, but in order to receive communication service provision while the mobile station moves to another area , It is required to apply a common radio frequency band to all radio zones, and it is easy to adapt zone configurations, radio channel setting control methods, etc. while adapting to different transmission characteristics for each frequency band. could not.

It is an object of the present invention to provide a radio channel allocation control system which can maintain the quality of service and increase the number of subscribers that can be accommodated without changing the hardware configuration.

[0012]

FIG. 1 shows the structure of claims 1 to 3,
It is a principle block diagram of the invention as described in 8-10.

According to the first aspect of the present invention, with respect to an outgoing call of a mobile station located in a wireless zone formed by the own station, identification information indicating a destination is acquired based on a procedure of wireless channel setting control, and a call is made. A wireless channel control means 11 for allocating a wireless channel to be used for signal transmission, and the identification information acquired by the wireless channel control means 11 are analyzed based on a numbering plan to perform call processing of an outgoing call, and the wireless channel control means. And a switching means 12 for forming a communication path corresponding to the wireless channel assigned by the switching means 12. The switching means 12 determines, based on the numbering plan, whether or not the destination of the outgoing call receives the call. The wireless line control unit 11 has an identification unit 13, and the wireless line control unit 11 individually identifies, with respect to an outgoing call to which a wireless channel is assigned in advance, identification information indicating a destination and a caller identification indicating a source. The result of the determination made by the allocation result recording means 14 that records information and its wireless channel in association with each other and the call type identification means 13 is false, and the acquired identification information is recorded in the allocation result recording means. And a duplicate allocation unit 15 for determining the radio channel recorded in the allocation result recording unit in association with the identification information when the result is true. And

According to a second aspect of the present invention, in the wireless channel allocation control system according to the first aspect, an adjoining zone storage means 21 for preliminarily storing adjoining zones formed adjacent to each other for each radio zone is provided. In the allocation result recording means 14, the zone identification information indicating the wireless zone in which the outgoing call originated is recorded together with the identification information in association with the wireless channel. When the identification information is added to match, and the result determined by the duplicate allocating means 15 is false, the wireless line control means 11 determines the allocation result among the adjacent zones stored in the adjacent zone storage means 21. For the adjacent zone in which the recording means records the wireless channel corresponding to the same identification information as that of the outgoing call, the mobile station in which the outgoing call originated receives the wireless channel. Command the measurement of the electric field strength based on the procedure of setting control, compare the electric field strength obtained according to the command and the lower limit value that can be used for communication, and when the former exceeds the latter, change the wireless channel. It is characterized in that it is provided with an adjacent zone allocating means 23 which is an allocation target.

According to a third aspect of the present invention, in the wireless channel allocation control system according to the first aspect, an adjoining zone storage means 21 for preliminarily storing adjoining zones formed adjacent to each other for each radio zone is provided. In the allocation result recording means 14, zone identification information indicating the wireless zone in which the outgoing call originated and caller identification information indicating the originator of the outgoing call are recorded together with the identification information in association with the wireless channel, It is added to the duplicate allocation means 15 that the zone identification information coincides as a condition for determining the authenticity, and the wireless line control means 11 records the allocation result among the adjacent zones stored in the adjacent zone storage means 21. The mobile station indicated by the caller identification information recorded in the means 14 in association with the same identification information as the outgoing call is assigned redundantly based on the procedure of the radio channel setting control. A radio channel that is subject to allocation by the step 15, characterized by comprising a channel switching means 31 for any busy channel switching for one of the radio channel allocated by the radio channel control unit 11.

FIG. 2 is a principle block of the invention described in claims 4, 7 and 10. According to the invention described in claim 4, for the outgoing call of the mobile station located in the wireless zone formed by the own station, the identification information indicating the destination is acquired based on the procedure of the wireless channel setting control, and the identification information is the same. The wireless line control means 41 for allocating a common wireless channel to all outgoing calls for each wireless zone, and the identification information acquired by the wireless line control means 41 are analyzed based on the numbering plan to perform call processing for outgoing calls. The switching means 42 that forms a communication path corresponding to the wireless channel allocated by the wireless line control means and the originating caller for the outgoing call to which the common wireless channel is allocated by the wireless line control means 41 are individually shown. Assignment result recording means 43 for recording the caller identification information, the wireless channel thereof, and the zone identification information indicating the generated wireless zone in association with each other, Control means 4
Adjacent zone storage means 44 for preliminarily storing the adjoining adjoining zones of the wireless zones formed by 1
The wireless line control means 41 has means for detecting an activation factor of channel switching during a call based on a procedure of wireless channel setting control for an outgoing call whose identification information is recorded in the allocation result recording means 43. Then, when the activation factor is detected by the wireless line control means 41, the adjacency stored in the adjacent zone storage means 44 corresponding to the radio zone in which the mobile station of the originator of the outgoing call in which the activation factor has occurred is located. Of the zones, all the adjacent zones in which the caller identification information is recorded in the allocation result recording means 43 are obtained, and based on the procedure of the wireless channel setting control, all the mobile stations indicated by the caller identification information are provided with these. The measurement command means 45 for commanding the measurement of the electric field strength of the adjacent zone, and the collection in accordance with these commands based on the procedure of the wireless channel setting control of all the adjacent zones. A caller corresponding to the same zone identification information as the caller in which the activation factor is detected, of the caller identification information recorded in the allocation result recording means, is obtained by finding an adjacent zone whose electric field strength exceeds the lower limit value that can be used for a call All mobile stations indicated by the identification information are provided with a channel switching unit 46 for switching a channel during a call to the adjacent zone.

FIG. 3 is a block diagram of the principle of the invention described in claims 5-10. According to a fifth aspect of the present invention, with respect to an outgoing call of a mobile station located in a wireless zone formed by the own station, identification information indicating a destination is acquired based on a procedure of wireless channel setting control, and the identification information is the same. The wireless line control means 41 for allocating a common wireless channel to all outgoing calls for each wireless zone, and the identification information acquired by the wireless line control means 41 are analyzed based on the numbering plan to perform call processing for outgoing calls. The switching means 42 that forms a communication path corresponding to the wireless channel allocated by the wireless line control means and the originating caller for the outgoing call to which the common wireless channel is allocated by the wireless line control means 41 are individually shown. Assignment result recording means 43 for recording the caller identification information, the wireless channel thereof, and the zone identification information indicating the generated wireless zone in association with each other, Control means 4
Adjacent zone storage means 44 for preliminarily storing the adjoining adjoining zones of the wireless zones formed by 1
The wireless line control means 41 refers to the adjacent zone storage means 44 on the basis of the zone identification information recorded in the allocation result recording means 43 to obtain all zone identification information of the adjacent zones. A measurement command that commands all mobile stations indicated by the caller identification information recorded in the allocation result recording means corresponding to the identification information to measure the electric field strength of each adjacent zone based on the procedure of the radio channel setting control. Of the means 61 and all the adjacent zones, the transition destination zone having the maximum average value of the electric field intensity collected according to the command under the procedure of the wireless channel setting control is selected, and the electric field intensity of the transition destination zone is selected. As for all mobile stations for which a value exceeding the lower limit value that can be used for a call is collected, a channel switching means 62 for switching a channel during a call to the transfer destination zone is provided. And wherein the door.

According to a sixth aspect of the present invention, with respect to an outgoing call of a mobile station located in a wireless zone formed by the own station, identification information indicating a destination is acquired based on a procedure of wireless channel setting control, and the identification is performed. The wireless line control means 41 for allocating a common wireless channel for each wireless zone to all outgoing calls having the same information, and the identification information acquired by the wireless line control means 41 are analyzed based on the numbering plan, and the outgoing call The switching means 42 that performs call processing and forms a communication path corresponding to the wireless channel assigned by the wireless line control means, and the outgoing call to which the common wireless channel is assigned by the wireless line control means 41 are individually transmitted. Allocation result recording means 4 for recording the originator identification information indicating the origin and the wireless channel and the zone identification information indicating the generated wireless zone in association with each other. When, a radio zone formed by the radio network controller 41, and a neighboring zone storage means 44 for previously storing the adjacent zone adjacent individually,
Of the adjacent zones stored in the adjacent zone storage means 44,
A co-adjacent zone having a plurality of adjacent zones is obtained, and a wireless channel is set to all mobile stations indicated by the caller identification information recorded in the allocation result recording means 43 corresponding to the zone identification information of the plurality of adjacent zones. Measurement command means 71 for instructing the measurement of the electric field strength of the co-adjacent zone based on the control procedure, and electric field strength exceeding the lower limit value that can be used for communication under the procedure of the wireless channel setting control among all mobile stations Is provided with channel switching means 72 for switching channels during a call to a co-adjacent zone for mobile stations collected according to the command.

According to a seventh aspect of the present invention, in the wireless channel allocation control method according to any one of the fourth to sixth aspects, the wireless line control means 41 has a wireless zone to which switching is performed during channel switching. Includes means for determining whether the wireless channel is recorded in the allocation result recording means 43 corresponding to the zone identification information indicating that the wireless channel is set as the switching destination when the result is true. It is characterized by

The invention according to claim 8 is the mobile station 91 which receives the transmission information through the allocated radio channel in the radio channel allocation control method according to any one of claims 1 to 7. _{1 to} 91 _N , the wireless line control means is unique to each mobile station indicated by the caller identification information recorded for each wireless zone in the allocation result recording means, based on the procedure of the wireless channel setting control. A transmission timing control means 92 for allocating transmission timing,
The mobile station 91 ₁ to 91 _N is characterized by having a transmission control unit 93 for transmitting transmission information to the radio channel to the transmission timing assigned by the transmission timing notification means.

A ninth aspect of the present invention is a mobile station 91 for receiving transmission information via the assigned radio channel in the radio channel assignment control method according to any one of the first to seventh aspects. _{1 to} 91 _N , the wireless line control means, for each mobile station indicated by the caller identification information recorded for each wireless zone in the allocation result recording means,
Has a transmission timing control unit 101 for allocating a unique transmission timing in accordance with the permission of transmission is requested based on the procedure of the radio channel setting control, the mobile station 91 ₁ -
91 _N has transmission control means 102 for requesting permission of transmission based on a radio channel setting control procedure and transmitting transmission information to a radio channel at the transmission timing assigned by the transmission timing notifying means 101. Is characterized by.

A tenth aspect of the present invention is a mobile station 91 which receives transmission information via the assigned radio channel in the radio channel assignment control method according to any one of the first to seventh aspects. _{1 to} 91 _N , the wireless line control means measures a predetermined hold time from the time when the wireless channel is allocated, and releases the allocation of the wireless channel when the time measurement ends. and means, to the mobile station 91 ₁ to 91 _N are counting means 1 for measurement of the hold time starting from the time when the assigned radio channel based on the instructions of the radio channel setting control
11 and an end call control means 112 for withdrawing from the talking state when the time measuring means 111 finishes measuring the holding time.

In the radio channel allocation control system according to the invention described in claim 1, when the outgoing call originates in the mobile station located in the radio zone, the switching means 12 causes the radio channel control means 11 to perform the radio channel setting control. The identification information indicating the called party obtained based on the procedure is analyzed based on the numbering plan, and the call type identifying means 13 determines whether or not the called party receives the call based on the result of the analysis. The wireless line control means 11 allocates a wireless channel to be used for transmission of a call signal to such an outgoing call based on the procedure of the wireless channel setting control, and the allocation result recording means 14 allocates the wireless channel, the above-mentioned identification information and the originator. And the caller identification information of the mobile station are recorded in association with each other. The duplicate allocation means 15 is
As described above, it is determined whether or not the result of the determination performed by the call type identification means 13 is false, and the identification information that is the target of the determination is recorded in the allocation result recording means 14, and the result is determined. When is true, the radio channel recorded in association with such identification information is the allocation target. The wireless line control means 11 allocates the wireless channel to the above-mentioned outgoing call based on the procedure of the wireless channel setting control.

That is, to the outgoing call to the called party not receiving the call, the wireless channel common to the completed call connected prior to the called party is surely allocated. In the wireless channel allocation control system according to the invention of claim 2, the adjacent zone storage means 21 is the wireless line control means 1
Adjacent zones adjacent to individual wireless zones formed by 1 are stored in advance, and the allocation result recording means 14 corresponds to the zone identification information indicating the wireless zone in which the outgoing call originated together with the wireless channel and the identification information related to the outgoing call. Attach and record. The call type identifying means 13 determines whether or not the called party receives the call based on the result of the analysis performed by the exchanging means 12 under the numbering plan on the identification information indicating the called party of the outgoing call, and the duplicate assigning means. Reference numeral 15 determines whether or not the result of such determination is false, and the identification information which is the subject of the determination is recorded in the allocation result recording means 14 in correspondence with the same zone identification information. Adjacent zone allocation means 23
Indicates that the result of the determination is false, the adjacent zone storage means 2
Allocation result recording means 14 among the adjacent zones stored in No. 1
In the adjacent zone in which the wireless channel corresponding to the above-mentioned identification information is recorded, the mobile station in which the outgoing call originated is instructed to measure the electric field strength. Further, the adjacent zone allocating means 23 compares the electric field strength obtained according to the command with the lower limit value that can be used for a call, and when the former exceeds the latter, sets the wireless channel as an allocation target. The wireless line control means 11 allocates the wireless channel to the above-mentioned outgoing call based on the procedure of the wireless channel setting control.

That is, for an outgoing call to a destination not receiving a call, a completed call connected to a similar destination prior to the adjacent zone of the wireless zone in which the mobile station where the outgoing call originated is located. If they exist, the common radio channel is assigned after confirming that the transmission quality can be secured by the received waves coming from the adjacent zone. In the wireless channel allocation control system according to the invention described in claim 3, the adjacent zone storage means 21 is the wireless line control means 1
Adjacent zones adjacent to the individual wireless zones formed by 1 are stored in advance, and the allocation result recording means 14 identifies the wireless zone in which the outgoing call originated and the originator identification indicating the originator of the outgoing call. The information is recorded in association with the wireless channel and the identification information related to the outgoing call. The call type identifying means 13 determines whether or not the called party receives the call based on the result of the analysis performed by the exchanging means 12 under the numbering plan on the identification information indicating the called party of the outgoing call, and the duplicate assigning means. 15, the result of such discrimination is false,
Further, it is determined whether or not the identification information which is the object of the determination is recorded in the allocation result recording means 14 in correspondence with the same zone identification information. When the result is true, such identification information is recorded. The radio channels recorded in association with each other are targets for allocation.

Further, the channel switching means 31 is the caller identification information recorded in the allocation result recording means 14 among the adjacent zones stored in the adjacent zone storage means 21 in association with the same identification information as the outgoing call. For the mobile station shown, a busy channel for either one of the radio channel assigned by the duplicate assignment means 15 based on the procedure of the radio channel setting control and the radio channel assigned by the radio line control means 11. Switch over.

That is, when a completed call connected to the same destination that does not transmit to the adjacent zone occurs in parallel, the source mobile station located in either one of these adjacent zones transmits to the other radio. Since the channel switching during a call to the zone is actively attempted, such a channel switching during a call cannot be completed, so that the wireless channel control means 11 stays in the common wireless channel allocated in the one wireless zone. The number of mobile stations is reduced, and the time when the radio channel is decaptured is expedited.

In the radio channel allocation control system according to the invention described in claim 4, the radio channel control means 41 uses the procedure of the radio channel setting control for the outgoing call to the mobile station located in the radio zone formed by itself. Based on this, the identification information indicating the destination is acquired, and a common wireless channel is assigned to each wireless zone for all outgoing calls having the same identification information. The exchanging means 42 analyzes the identification information based on the numbering plan, performs the above-mentioned call processing of the outgoing call, and forms a speech path corresponding to the assigned wireless channel. Further, the allocation result recording means 43 individually provides the caller identification information indicating the originator and the zone identification information indicating the wireless channel and the generated wireless zone for the outgoing call to which the common wireless channel is allocated in this way. Are recorded in association with each other. The adjacent zone storage means 44 stores in advance adjacent adjacent zones for each wireless zone formed by the wireless line control means 41.

The measurement command means 45 is the allocation result recording means 4
For the outgoing call whose identification information is recorded in No. 3, when the wireless line control unit 41 detects the activation factor for switching the channel during a call based on the procedure of the wireless channel setting control, the originator of the outgoing call in which the activation factor occurs Among the adjacent zones stored in the adjacent zone storage means 44 corresponding to the wireless zone in which the mobile station is located, all the adjacent zones in which the caller identification information is recorded in the allocation result recording means are obtained, and the caller identification is performed. It commands all mobile stations indicated by the information to measure the field strength of these adjacent zones. Channel switching means 4
Among all of the above-mentioned adjacent zones, 6 obtains an adjacent zone in which the electric field strength collected under the procedure of the wireless channel setting control according to these commands exceeds the lower limit value that can be used for a call, and assigning result recording means. Among the caller identification information recorded in 43, all the mobile stations indicated by the caller identification information corresponding to the same zone identification information as the caller in which the above-mentioned activation factor has been detected, make a call to the adjacent zone. Switch the middle channel.

That is, with respect to all mobile stations located in the same radio zone as the mobile station which should switch the channel during a call and to which a common radio channel is allocated to the same destination, the zone adjacent to the radio zone Since the channel switching during the call to is attempted in parallel, the mobile stations to which such a common radio channel is allocated are actively distributed to the adjacent zones, and the acquisition cancellation related to the radio channel is promoted.

In the radio channel allocation control system according to the present invention as defined in claim 5, the radio channel control means 41 follows the procedure of radio channel setting control for an outgoing call to a mobile station located in a radio zone formed by the self station. Based on this, the identification information indicating the destination is acquired, and a common wireless channel is assigned to each wireless zone for all outgoing calls having the same identification information. The exchanging means 42 analyzes the identification information based on the numbering plan, performs the above-mentioned call processing of the outgoing call, and forms a speech path corresponding to the assigned wireless channel. Further, the allocation result recording means 43 individually provides the caller identification information indicating the originator and the zone identification information indicating the wireless channel and the generated wireless zone for the outgoing call to which the common wireless channel is allocated in this way. Are recorded in association with each other. The adjacent zone storage means 44 stores in advance adjacent adjacent zones for each wireless zone formed by the wireless line control means 41.

The measurement command means 61 is an allocation result recording means 4
All zone identification information of the adjacent zones is obtained by referring to the adjacent zone storage means 44 based on the zone identification information recorded in No. 3, and recorded in the allocation result recording means corresponding to these zone identification information. All mobile stations indicated by the caller identification information are instructed to measure the electric field strength of each adjacent zone based on the procedure of the radio channel setting control.
The channel switching unit 62 selects the transition destination zone in which the average value of the electric field strengths collected in accordance with the command under the procedure of the radio channel setting control is the maximum among all these adjacent zones, and the transition is performed. For all the mobile stations whose electric field strength in the destination zone exceeds the lower limit value that can be used for a call, the in-call channel switching to the destination zone is performed.

That is, with respect to the wireless zone in which a completed call to which a common wireless channel is allocated with the above-mentioned called party exists, a completed call in which the called party exists in a zone adjacent to the wireless zone and the called party is the same. Since the channel switching during the call is actively performed, the acquisition or the promotion of the cancellation of the wireless zones assigned to the completed call in these adjacent zones can be achieved.

In the radio channel allocation control system according to the invention of claim 6, the radio channel control means 41 uses the procedure of radio channel setting control for an outgoing call to a mobile station located in a radio zone formed by itself. Based on this, the identification information indicating the destination is acquired, and a common wireless channel is assigned to each wireless zone for all outgoing calls having the same identification information. The exchanging means 42 analyzes the identification information based on the numbering plan, performs the above-mentioned call processing of the outgoing call, and forms a speech path corresponding to the assigned wireless channel. Further, the allocation result recording means 43 individually provides the caller identification information indicating the originator and the zone identification information indicating the wireless channel and the generated wireless zone for the outgoing call to which the common wireless channel is allocated in this way. Are recorded in association with each other. The adjacent zone storage means 44 stores in advance adjacent adjacent zones for each wireless zone formed by the wireless line control means 41.

The measurement command means 71 obtains a co-adjacent zone having a plurality of adjoining zones among the adjoining zones stored in the adjoining zone storage means 44, and assigns the result corresponding to the zone identification information of the plurality of adjoining zones. All mobile stations indicated by the caller identification information recorded in the recording means 43 are instructed to measure the electric field strength of the co-adjacent zone based on the procedure of the radio channel setting control. Channel switching means 72
Among all of these mobile stations, the mobile station for which the electric field strength exceeding the lower limit value that can be used for the call in accordance with the above-mentioned command under the procedure of the radio channel setting control is collected is called to the co-adjacent zone. Switch the middle channel.

That is, regarding the wireless channels that are individually and commonly allocated as wireless transmission paths to the same destination in the adjacent zone of the co-adjacent zone, the wireless channels that are similarly commonly assigned in the co-adjacent zone. Since the number of mobile stations that can not complete such channel switching during a call continues and the acquisition is canceled or the cancellation is promoted, it is actively switched to and merged with .

In the wireless channel allocation control system according to the invention described in claim 7, in the wireless channel allocation control system according to any one of claims 4 to 6, the wireless channel control means 41 is used for switching the communication channel. It is determined whether or not the wireless channel corresponding to the zone identification information indicating the wireless to be switched to is recorded in the allocation result recording means 43, and if it is recorded, the wireless channel is switched to the busy channel switching. Set it first.

That is, when there is a completed call connected to the same destination in the wireless zone of the switching destination, after the channel switching during a call, the call state continues on the common wireless channel assigned to the completed call. It comes off. The radio channel assignment control method according to the invention of claim 8, in the invention described in any one of claims 1 to 7, the mobile station 91 ₁ to 91 _N via the assigned radio channel Receive transmission information. The transmission timing control unit 92 assigns a unique transmission timing to each mobile station indicated by the caller identification information recorded for each wireless zone in the allocation result recording unit based on the procedure of the wireless channel setting control.

On the other hand, in the mobile stations 91 _{1 to} 91 _N described above,
The transmission control means 93 transmits the transmission information to the wireless channel at the transmission timing thus assigned. In other words, the radio channel commonly assigned as a radio transmission path to the destination that does not receive the call is also shared by the mobile stations to which these radio channels are assigned in parallel without any conflict. It is possible to reliably notify the wireless line control means of the control information adapted to the timing of ending the call or the procedure of the wireless channel setting control.

In the radio channel allocation control system according to the invention described in claim 9, in the invention described in any one of claims 1 to 7, the mobile stations 91 _{1 to} 91 _N are allocated radio channels. Receive the transmission information via
Transmission control means 102 provided individually for these mobile stations
Requests permission for transmission based on the procedure of radio channel setting control.

The transmission timing control means 101 sets a unique transmission timing according to the above-mentioned transmission permission required for each mobile station indicated by the sender identification information recorded in the allocation result recording means for each wireless zone. Allocate. In the mobile stations 91 _{1 to} 91 _N , the transmission control means 102
The transmission information is transmitted to the radio channel at the transmission timing assigned in this way.

That is, a radio channel commonly assigned as a radio transmission path to a destination not receiving a call is also used for transmission by a plurality of mobile stations to which these radio channels are assigned in parallel, It is possible to reliably notify the wireless line control means of the control information adapted to the timing of ending the call and the procedure of the wireless channel setting control.

In the radio channel allocation control system according to the invention described in claim 10, in the invention described in any one of claims 1 to 7, the radio channels are allocated to the mobile stations 91 _{1 to} 91 _N. Then, the transmission information is received via the wireless channel, and the timing means 111 starts timing of a predetermined holding time from that point as a starting point. The wireless line control means measures the same hold time from the time when the above-mentioned wireless channel is allocated as a starting point, and when the time measurement ends, the allocation of the wireless channel is released.

[0044] Further, the mobile station 91 ₁ to 91 _N, call end control means 112, timing means 111 move away from the call state at the completion of the counting. In other words, the wireless channels that are commonly assigned as wireless transmission paths to the destinations that do not receive are also shared by the multiple mobile stations that are assigned these wireless channels in parallel. The acquisition is canceled under the judgment made independently by the mobile station and the wireless line control means.

[0045]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described in detail below with reference to the drawings. The hardware configuration of each embodiment shown below is the same as that of the conventional example in FIG. 29, and therefore the description thereof is omitted here. Further, features of each embodiment described below, the call processing switch 163 is performed, the processing of the radio channel setting control by the base station controller 162 carries out, the processor 172 ₁ ~172 _N in the mobile station 164 ₁ to 164 _N There is a process to be performed.

The correspondence between each of these embodiments and the block diagrams shown in FIGS. 1 to 3 is as follows.
61 _{1 to} 161 _M and the base station control device 162 are connected to the radio line control means 11 and 41 (allocation result recording means 14 and 43, duplicate allocation means 15, adjacent zone allocation means 23, channel switching means 31, measurement command means 45 and 61). , 71, channel switching means 46, 62, 72, transmission timing control means 92, transmission timing control means 101) and adjacent zone storage means 21, 44, and the exchange 1
63 corresponds to the exchange means 12, 42 comprising a call type identifying unit 13, the mobile station 164 ₁ to 164 _N mobile stations 91 ₁ to 91 _N
Corresponds to the processor 172 ₁ ~172 _N transmission control means 93,102, timer means 111 and call termination control unit 11
Corresponds to 2.

FIG. 4 is an operation flowchart of this embodiment corresponding to the invention described in claim 1. FIG. 5 is a diagram for explaining the operation of this embodiment corresponding to the invention described in claim 1. Hereinafter, the operation of this embodiment corresponding to the invention described in claim 1 will be described with reference to FIGS. 4, 5 and 29.

The base station controller 162, as shown in FIG. 6, for all completed call the radio base station 161 ₁ to 161 _M has occurred in the wireless zone formed separately of movement indicated by the originating mobile station It has a completed call table 131 showing station identifiers, dial numbers and assigned wireless channels. The base station controller 162, as in the prior art, having a radio channel management table indicating whether or not assigned to any call for each radio channel with the radio base station 161 ₁ to 161 _M .

[0049] In the mobile station 164 _1, dial number by the subscriber (in this case, and for the sake of simplicity "117".)
When There operations involving outgoing specified is performed, the processor 172 _1, the transmitting unit 167 ₁ to call signal including the identification information of the dial number and the own station, the antenna control unit 16
Wireless base station 161 via 8 ₁ and antenna 173 _1.
Send to ₁ (Fig. 5).

The radio base station 161 ₁ receives the calling signal and demodulates it to restore the above-mentioned dial number and identification information, and the identifier of its own station (hereinafter referred to as "base station identifier"). ) Is added to the base station controller 162
To notify. The base station control device 162 generates a calling signal including the dial number, the identification information, and the base station identification information, and gives it to the exchange 163.

When the exchange 163 recognizes such a call signal, it analyzes the dial number included in the call signal to determine whether or not the call signal is a special number call in which the call signal is transmitted only to the downlink line. If it is determined (FIG. 4) and the result is true, a special number notification including the corresponding dial number, identification information, and base station identification information is also sent to the base station control corresponding to the base station identification information. It is sent to the device 162 (FIG. 5).

Upon recognizing such a special number notification, the base station controller 162 acquires the dial number, identification information and base station identification information included in the special number notification, and by referring to the completed call table 131, It is determined whether or not there is a completed call that has occurred in the wireless zone formed by the base station indicated by the base station identification information and has the same dial number (hereinafter referred to as "preceding completed call") (FIG. 4).
). Further, when the result of the determination is true, the base station controller 162 assigns the wireless channel recorded in the completed call table 131 for the corresponding preceding completed call to the wireless channel (hereinafter referred to as “call channel”). .) (FIG. 4). On the contrary, if it is false, a free radio channel is newly captured and the radio channel is decided as a communication channel as in the conventional example (FIG. 4).

Further, the base station controller 162 generates a response signal indicating the call channel and notifies it to the exchange 163 (FIG. 5). When the exchange 163 recognizes such a response signal, the call processing procedure is terminated. A channel that forms a call path between the called party (destination) and its call channel given based on the result of the above-mentioned analysis of the dial number, and includes the dial number toward the base station controller 162. A setting request is sent (Fig. 5).

Upon recognizing the channel setting request, the base station control unit 162 associates the dial number included in the channel setting request with the above-mentioned call channel, registers them in the completed call table 131, and sets the call channel to the call channel. It generates a channel designation request indicating for transition and sends to the mobile station 164 ₁ via the radio base station 161 ₁ (Fig. 5).

Mobile station 164₁ Then, the processor 172₁ 
Is the antenna 173₁ , Antenna control unit 168₁ and
Receiver 169₁ Such a channel specification request via
When received and recognized, it is indicated by the channel specification request
Sending a call channel 167 ₁ And receiver 169₁ To
Set and enter the call state. In addition, the completed call table 131
The content of the
When the call is forcibly disconnected or the call ends normally
In addition, the base station controller 162 recognizes that the disconnection or the end of the call is
Delete information related to the failed call.

As described above, according to the present embodiment, the service is provided by forming the wireless transmission path only for the downlink call signal from the wireless base station to the mobile station, such as an announcement issued from a common signal source. A common wireless channel is reliably assigned for calls made. Therefore, the quality of service can be maintained without changing the hardware configuration, and the radio frequency can be used more effectively than in the conventional example in which the radio channel is individually allocated for each call regardless of the other party.

[0057] In the present embodiment, although the mobile station 164 ₁ radio channel is assigned to the originating call is originated, the present invention is not limited to such an outgoing call,
The call may be an incoming call as long as the call signal is transmitted only through the downlink line. Further, in the above-described embodiment, the present invention is applied to the mobile communication system in which the base station controller 162 and the exchange 163 are separately configured, but the present invention is applied to the mobile communication system having such a configuration. The present invention is not limited to this, and can be similarly applied to a single device that performs both wireless channel allocation and circuit switching, such as a base station device of a mobile communication system that mainly performs a call service between mobile stations. Is.

Further, in this embodiment, the identification information and the dial number of the sender are the base station controller 162 and the exchange 16.
However, the present invention is not limited to such a configuration, and reliably identifies the wireless zone where the call originates (or the wireless base station forming the wireless zone) and the call. If possible, any type of control information may be transmitted and received between the base station controller 162 and the exchange 163.

In this embodiment, the exchange of the dial number is performed by the exchange 163.
The present invention is not limited to such a configuration, and can be similarly applied to a configuration in which the base station control device 162 performs the same analysis. Further, in the present embodiment, the special number is set to "117", but the service can be provided by forming the wireless transmission path for only the downlink call signal from the wireless base station to the mobile station. If the signal source of the call signal is common and the signal source is uniquely determined based on the numbering plan, it is applicable regardless of the number of digits and whether the area code is added.

FIG. 7 is an operation flowchart of this embodiment corresponding to the invention described in claim 2. FIG. 8 is a diagram (1) for explaining the operation of this embodiment corresponding to the invention described in claim 2. In the figure, the same timings as those shown in FIG. 5 are designated by the same circles, and the description thereof is omitted here.

FIG. 9 is a diagram (2) for explaining the operation of this embodiment corresponding to the invention described in claim 2. Hereinafter, the operation of the present embodiment corresponding to the invention described in claim 2 will be described with reference to FIGS. 4, 7 to 9 and 29. The base station controller 162, along with the call completion table 131 and radio channel management table described above, as shown in FIG. 10, for each of the radio zones radio base station 161 ₁ to 161 _M are formed, adjacent to each other wirelessly It has an adjacent zone management table 141 showing the identifiers of zones (hereinafter referred to as "adjacent zones") and the identifiers of base stations forming the wireless zones.

The mobile station 164 ₁ uses the dial number (= 11
7) and the calling signal including the identification information of its own station, the wireless base station 1
61 ₁ transmits towards (Fig. 8), by the wireless base station in accordance with the dial number and the identification information included in the call signal, the base station controller 162 the base station identifier of the station has been notified Switch 163 by generating a calling signal including these dialed number, identification information and base station identifier.
Give to.

When the exchange 163 recognizes such a call signal, it analyzes the dial number included in the call signal to determine whether the call signal is transmitted only to the downlink line. If it is determined (FIG. 4) and the result is true, a special number notification including the corresponding dial number, identification information, and base station identifier is additionally issued, and the base station controller 162 corresponding to the base station identifier. (FIG. 8).

Upon recognizing such a special number notification, the base station control unit 162 acquires the dial number, identification information and base station identifier included in the special number notification, and refers to the completed call table 131 to advance the call. It is determined whether there is a completed call (FIG. 4). Further, when the result of the determination is true, the base station control device 162 determines the communication channel in the same manner as the embodiment corresponding to the invention described in claim 1 described above (FIG. 4).

On the other hand, if it is false, the base station controller 162 refers to the adjacent zone management table 141 based on the above-mentioned base station identifier, and thereby the radio formed by the radio base station 161 ₁ . The identifiers of all wireless zones (hereinafter, simply referred to as “neighboring zones”) adjacent to the zone are obtained. Furthermore, the base station controller 16
2 refers to the completed call table 131 by applying the base station identifiers of the wireless base stations forming all the adjacent zones obtained in this way, instead of the above-mentioned base station identifiers, thereby It is determined whether or not there is a preceding completion call in any of the zones (FIG. 7), and when the result is true, the call channel assigned to the preceding completion (hereinafter referred to as "adjacent zone call channel"). .) Is generated, and the level measurement request is transmitted to the mobile station 164 ₁ via the radio base station 161 ₁ (FIG. 7, FIG. 8 (1)).

At the mobile station 164 ₁ , the processor 172 ₁
When receiving and recognizing such a level measurement request via the antenna 173 ₁ , the antenna control unit 168 ₁ and the receiving unit 169 ₁ , the adjacent zone communication channel indicated by the number included in the level measurement request is The electric field strength is measured via the receiving unit 169 ₁ . Further, the processor 172 ₁ transmits the electric field strength obtained as a result of the measurement to the radio base station 161 ₁ via the transmission unit 167 ₁ , the antenna control unit 168 ₁ and the antenna 173 ₁ (FIG. 8 (2)). ).

The base station controller 162 receives the electric field strength and determines the magnitude relationship with the lower limit value (for example, 20 dBμ) applicable to the provision of the call service (FIG. 7), and when the former exceeds the latter. In the above, the adjacent zone call channel is determined as the call channel (FIG. 7). On the contrary, when the call channel is lower than the adjacent zone call channel, a radio channel that is vacant at that time is newly captured and the call channel is determined as the call channel. (Fig. 4).

Also, the base station control unit 162 generates a response signal indicating the communication channel thus determined and notifies the exchange 163 (FIG. 5), and the exchange causes the invention according to claim 1 to be realized. As in the corresponding embodiment, a channel setting request including a dial number is sent (Fig. 5).
), The dial number included in the channel setting request and the above-mentioned call channel are associated with each other and registered in the completed call table 131, and a channel designation request indicating that the call channel should be shifted is generated to generate the mobile station. 164 and sends toward the ₁ (Figure 5).

Further, in the radio base station 1611, as in the embodiment corresponding to the invention described in claim ₁ , the transmitting section 16 transmits the call channel indicated by the channel designation request.
7 ₁ and the receiving unit 169 ₁ are set to enter the call state.

Regarding the contents of the completed call table 131, when the completed call is forcibly disconnected due to some factor or the normal call is ended, the base station controller 162 disconnects or ends the call. Delete the information related to the call subject to. As described above, according to the present embodiment, as shown by the dotted line in FIG. 9, the call quality is acceptable for a call for which a service is provided by forming a wireless transmission path for only a downlink call signal. While maintaining the value, a communication channel common to the adjacent zone of the wireless zone where the mobile station where the call originated is located is allocated.

Therefore, the quality of service can be maintained without changing the hardware configuration, and the utilization efficiency of the radio frequency can be improved as compared with the embodiment corresponding to the invention described in claim 1. In the present embodiment, the mobile station measures the electric field strength of the received wave arriving from the base station of the adjacent zone, the present invention is not limited to such a procedure of wireless channel setting control, for example, The mobile station may be instructed to perform transmission on a wireless channel that is a candidate for the adjacent zone communication channel, and the received electric field strength measured by the base station in the adjacent zone may be collected via a communication link or the like.

FIG. 11 is an operation flowchart of this embodiment corresponding to the invention described in claim 3. Figure 12
It is a figure (1) explaining operation | movement of this embodiment corresponding to invention of Claim 3. In the figure, the same numbers as those shown in FIG.
(1) and (2) are given and shown.

FIG. 13 is a diagram (2) explaining the operation of this embodiment corresponding to the invention described in claim 3. The operation of this embodiment corresponding to the invention described in claim 3 will be described below with reference to FIGS. 11 to 13 and 29.

The feature of this embodiment is that, in the embodiment corresponding to the invention described in claim 2, the magnitude relation between the electric field intensity acquired for the adjacent zone and the threshold value is discriminated (see FIG. 7).
) Processing performed by the base station controller 162 when the former is lower than the latter, and the radio base station 16 based on the procedure of the processing.
In a 1 ₁ to 161 _M and the mobile station 164 ₁ to 164 _N are radio channel setting control performed by the procedure.

[0075] When the above, the mobile station 164 ₁ that is not allowed to access to the adjacent zone of the radio zone of which are positioned the mobile station. Therefore, the base station control device 1
62 determines whether or not special number calls with the same dial number are registered in the completed call table 131 as the preceding completed calls for the wireless base stations forming all the adjacent zones (see FIG. 1).
1) If the result is false, a vacant radio channel is newly captured and the radio channel is confirmed as a speech channel in the same manner as in the embodiment corresponding to the invention described in claim 1. (Fig. 4).

On the contrary, if true, the base station controller 162 refers to the completed call table 131 for each preceding completed call to determine the call channel assigned to the preceding completed call. Along with getting
A level measurement request for requesting measurement of the electric field strength of the received wave coming from the radio base station 161 ₁ is sent to the communication channel (FIG. 11, FIG. 12 (1 ′)).

The mobile station in a call state on such a call channel measures the electric field strength of the received wave coming from the radio base station 161 ₁ in response to the above-mentioned level measurement request, and measures the electric field strength. It is transmitted toward 162 (FIG. 12 (2 ')). The base station controller 162 compares this way the lower limit value of the electric field intensity and above sent from the mobile station 164 ₂ (FIG. 11), when the former is below the latter, other adjacent zones The same process is repeated for the preceding completed call relating to the mobile station located in the same position, and when the electric field strength obtained for any of these preceding completed calls is also below the lower limit value, the invention according to claim 1. In the same manner as in the embodiment corresponding to (1), a vacant wireless channel is newly captured and the wireless channel is determined as a communication channel (FIG. 4).

[0078] However, in the mobile station (now located in one of the adjacent zones, for simplicity, situated in the adjacent zone formed by the radio base station 161 _2, reference numeral "164 _2"
Suppose that When the obtained electric field intensity exceeds the lower limit value from), the base station controller 162, a radio channel (hereinafter the vacant at that time in the radio zone of the radio base station 161 ₁ is formed, "the destination channel "
Say. ) Is acquired (FIG. 11), and a handoff command requesting to try handoff to the transfer destination channel is sent to the corresponding speech channel (FIG. 11,
FIG. 12 (3)).

[0079] Further, the base station controller 162, the mobile station 164 ₂ recognizes that it has completed the channel switching under predetermined procedure of the radio channel setting control in response to the handoff command described above, and its effect A response signal indicating the above-mentioned transfer destination channel is generated and sent to the exchange 163 (FIG. 11, FIG. 12 '). The exchange 163 is
The call path of the corresponding call is updated according to such a response signal, and when the update is completed, a channel setting request is sent to the base station controller 162 (FIG. 12 ').

Upon recognizing the channel setting request, the base station controller 162 allocates the above-mentioned transfer destination channel to the mobile station 164 ₁ as a communication channel (FIG. 11),
The service is provided under the cooperation of the radio base station 161 ₁ and the exchange 163 based on the same procedure as the embodiment corresponding to the invention described in claims 1 and 2 (FIG. 1).
2-).

As described above, according to the present embodiment, the handoff to the vacant wireless channel of the wireless zone of the preceding completed call existing in the adjacent zone of the wireless zone in which the mobile station 164 ₁ in which the special number call originated is located. After the compulsory execution, as shown in FIG. 13, since the radio channel is commonly assigned to both of these calls, the combination mode of the radio zones in which the plurality of mobile stations in which the special number call can originate is located. The utilization efficiency of radio frequencies can be improved while flexibly adapting to.

In the present embodiment, the base station controller 162 in which the handoff transfer source and transfer destination wireless zones are the same.
Although it is formed under the control of the wireless channel setting performed by
The present invention is not limited to such a configuration, and even when these radio zones are controlled by different base station controllers, a communication link that enables transmission and reception of desired control information between the two base station controllers. If it is provided, it can be similarly applied.

FIG. 14 is an operation flowchart of this embodiment corresponding to the invention described in claim 4. Figure 15 shows
It is a figure (1) explaining operation | movement of this embodiment corresponding to invention of Claim 4. In the figure, the same circle numbers 'and' are given to the timings corresponding to the timings 'and' shown in FIG.

FIG. 16 is a diagram (2) for explaining the operation of the present embodiment corresponding to the invention described in claim 4. The operation of this embodiment corresponding to the invention described in claim 4 will be described below with reference to FIGS. 14 to 16 and FIG. 29. The base station controller 162 may be any radio zones (in this case, for simplicity, it is assumed to be formed by the radio base station 161 _1.) Located in the mobile station in the call state (here,
For the sake of simplicity, it is assumed that the reference numeral “164 ₁ ” is used. )
Recognizes that a handoff should be made (Figure 15)
Then, a candidate for an adjacent zone to be a transfer destination (usually obtained in descending order of electric field strength, but simply referred to as an “adjacent zone candidate”) is acquired based on a predetermined radio channel setting control procedure. (Fig. 14).

Also, the base station control unit 162 uses the mobile station 1
When recognizing that the call originating in 64 ₁ is the above-mentioned special number call, by referring to the completed call table 131, the call is located in the radio zone formed by the radio base station 161 ₁ and the same special number Identification information of all mobile stations (hereinafter referred to as “adaptive mobile stations”) that are in a call state due to call origination is obtained (FIG. 14).

Further, the base station controller 162 generates a level measurement request for requesting measurement of the electric field strength for all the above-mentioned adjacent zone candidates, and the level measurement request is assigned to these adaptive mobile stations. Are sent to the call channel (FIGS. 14 and 15). on the other hand,
The adaptive mobile station recognizing such a level measurement request measures the electric field strengths of all the adjacent zone candidates indicated in the level measurement request, and sends the result to the individually assigned speech channels (FIG. 15). .

[0087] Base station controller 162, among these field strength radio base station 161 ₁ to 161 _M, received via the one corresponding to the speech channel, the identification information of adaptive mobile station performing the measurement In association with the adjacent zone candidates, FIG.
Among these adjacent zone candidates, the number of applicable mobile stations that give an electric field strength equal to or higher than the above-mentioned lower limit value becomes the maximum by arranging them as the monitoring information shown in Fig. (Assumed to be formed by 161 _K ) (FIG. 14).

Further, the base station control device 162 obtains a radio channel which is vacant at that time by referring to the radio channel management table for the adjacent zone candidates thus obtained (FIG. 14), Generate a handoff command requesting a handoff for the wireless channel. Further, the base station controller 162 sends out a handoff command to all the applicable mobile stations and the mobile station 164 ₁ through the communication channels assigned to these mobile stations (FIG. 14, FIG. 15, FIG. 16), and the handoff is completed under the cooperation with the exchange 163 and the like (FIGS. 15 ',') based on a predetermined radio channel setting control procedure (FIG. 16).

As described above, according to the present embodiment, when one of the mobile stations in the call state due to the special number call makes a handoff trial, the same special number call occurs and is in the talking state. And all or some of the other mobile stations located in the same radio zone both move to the same adjacent zone, so if such a transition is made for all these mobile stations, the allocation is done in advance. If a call channel that was previously held was released and a similar transition was made for only some of these mobile stations, that call channel would be released with a reduced number of mobile stations remaining in talk. The time when it will be shortened.

Although the procedure of the radio channel setting control related to handoff is not described in detail in the present embodiment, the present invention is based on the criteria and the subject relating to the determination of the activation factor of the radio channel setting control. In addition, the present invention can be applied regardless of the contents of the control information and the transmission method that the base station control device sends and receives mutually in accordance with the zone configuration.

FIG. 18 is a first operation flowchart of this embodiment corresponding to the invention described in claim 5. Hereinafter, the first operation of the present embodiment corresponding to the invention described in claim 5 will be described with reference to FIGS. 18 and 29. In the present embodiment, when a call to be handed off occurs, the base station control unit 162 obtains adjacent zone candidates (FIG. 18), further obtains identification information of adaptive mobile stations (FIG. 18), and also performs adaptive movement of these. The operation of each unit in the process of sending the level measurement request relating to the adjacent zone candidate to the station (FIG. 18) is the same as the operation of the present embodiment corresponding to the invention described in claim 4, and therefore the description thereof will be given here. Is omitted.

The base station controller 162 associates the electric field strength of each adjacent zone candidate notified from the adaptive mobile station in this manner with the identifier of the adaptive mobile station that has measured the adjacent zone candidate and the adjacent zone candidate. It arranges as the monitoring information shown in FIG. 17, and among these adjacent zone candidates, the adjacent zone candidates that give the electric field strength equal to or higher than the above-mentioned lower limit value are obtained in descending order of the number of applicable mobile stations (FIG. 18).

Further, the base station control unit 162 refers to the completed call table 131 based on the adjacent zone candidates thus obtained, and the completed call table has the same call as the above-mentioned handoff target call. It is sequentially determined whether or not the dial number indicating the special number call is registered (FIG. 18).
). Further, when the result of such determination is true, the base station control device 162 determines the corresponding adjacent zone candidate as the handoff transition destination (FIG. 18) and completes corresponding to the adjacent zone candidate. Call table 13
The wireless channel registered for the same special number call described above in 1 is obtained (FIG. 18), and a handoff request for the wireless ground channel is generated.

Further, the base station control device 162 selects one of the adaptive mobile stations whose electric field strength measured for the determined transfer destination is equal to or more than the lower limit value, and claims to these adaptive mobile stations. The handoff process is activated by sending out the handoff request in the same manner as the embodiment corresponding to the invention described in item 4. The operation of each unit in the process of the handoff process activated in this way is the same as that of the embodiment corresponding to the invention described in claim 4, and therefore the description thereof is omitted here.

If the result of the above determination is false, the base station controller 162 determines the handoff destination as in the embodiment corresponding to the invention described in claim 4 (see FIG. 14), the handoff process (FIG. 23) is performed in the same manner. Thus, according to the present embodiment,
When a handoff is attempted for any of the mobile stations that are in a call state due to a special number call, there is a deterioration in call quality among mobile stations that are in the same wireless zone and in a call state for the same special number call. As much as is acceptable moves to adjacent zones where similar completed calls exist.

That is, the probability that a radio channel in the adjacent zone is newly allocated in response to such a transition is greatly reduced, and a mobile station that has not been the target of such a transition continues the call state. about,
Since the number of mobile stations that access at the same time is reduced and the time when the mobile stations are released is advanced, the utilization efficiency of the radio frequency is further enhanced as compared with the embodiments corresponding to the inventions of claims 1 to 4.

FIG. 19 is a second operation flowchart of this embodiment corresponding to the invention described in claim 5. Figure 2
0 is a diagram (1) for explaining the second operation of the present embodiment corresponding to the invention of claim 5. FIG. 21 shows claim 5.
FIG. 7B is a diagram (2) explaining the second operation of the present embodiment corresponding to the invention described in (1).

The second operation of the present embodiment corresponding to the invention described in claim 6 will be described below with reference to FIGS. 19 to 21 and 29. The base station control unit 162 determines the number of (special calls) special number calls registered in the complete call table 131 for each wireless zone in a predetermined cycle by the type of the special number call (here, dial number for simplicity). 19), and by referring to the adjacent zone management table 141, it is possible to determine the completion call of special number calls of the same type concerning the mobile stations located in the adjacent zones adjacent to each other. It is determined whether there is any (FIG. 20)
).

In addition, the base station controller 162
If the result of the distinction is false, no processing is performed
Is true on the contrary, the two adjacent neighbors
(Here, for the sake of simplicity, the wireless base station 161₁, 161₂
Shall be formed by. ), As well as
The mobile station where the completed call originated (here, the radio base station 161
₁ Mobile station 164 located in₁ And wireless base station 161₂ On top
Mobile station 164 to be placed₂ And ) And (Fig. 19
). For the sake of simplicity, here, the corresponding completed call
It is assumed that there is only one type.

Further, the base station control unit 162 requests these mobile stations to measure the electric field strength in the radio zone in which the mobile stations are not located among the above-mentioned two adjacent zones. Is transmitted through the call channel (FIGS. 19 and 20)). Further, the base station control device 162 collects the electric field strengths measured by these mobile stations in response to such a level measurement request (FIG. 20).
Then, it is determined whether or not the electric field strength of any of these wireless zones exceeds the lower limit value described above (FIG. 19), and if the result is false, no processing is performed.

On the contrary, when the number of the adjacent zones is one, the adjacent zone is determined as the transition destination when the number is true (FIG. 19), and when the number is two, on the contrary, Of these adjacent zones, the one having the larger corresponding electric field strength value is determined as the transition destination (FIG. 19). Further, the base station control device 162 acquires from the completed call table 131 the wireless channel assigned to the corresponding special number call for the transfer destination determined in this way (see FIG. 1).
9) and the handoff process (FIGS. 20 and 14) is performed in the same manner as the invention according to claim 4.

As described above, according to the present embodiment, with respect to the completed calls (FIG. 21) related to the same type of special number calls existing in parallel in the adjacent zones, the common wireless communication is performed at a predetermined frequency separately from the handoff trial. A determination is made as to whether or not channel allocation is possible, and under the determination, the allocation of wireless channels for these completed calls is merged in units of wireless zones (FIG. 21).

That is, since the number of mobile stations that continue the call state via the wireless channel assigned to the above-mentioned completed call is biased in units of wireless zones, in one wireless zone,
The relevant wireless channel is released, and the number of mobile stations that continue the call state is reduced, which facilitates the release.
In the embodiment described above, the number of completed calls located in the adjacent zones and related to the same special number call is two. It is applicable regardless of.

FIG. 22 is an operation flowchart of this embodiment corresponding to the invention described in claims 6 and 7. FIG. 23
[Fig. 7] is a diagram (1) for explaining the operation of the present embodiment corresponding to the invention described in claims 6 and 7. FIG. 24 shows claims 6 and 7.
For explaining the operation of the present embodiment corresponding to the invention described in
It is (2).

The operation of the present embodiment corresponding to the invention described in claims 6 and 7 will be described below with reference to FIGS. 22 to 24 and 29. The feature of this embodiment lies in whether or not any one of the electric field intensities measured in two adjacent zones (from FIG. 19) in the embodiment corresponding to the invention described in claim 5 is the lower limit value or more. Discrimination (Fig. 19)
If the result is false, the procedure is performed by the base station controller 162.

In such a case, the base station control unit 162 refers to the adjacent zone management table 141 to refer to all the adjacent zones (here, for the sake of simplicity, the wireless zone is adjacent to both of these two adjacent zones). base station 161 ₃
Shall be formed by the following "co-adjacent zone"
Say. ) Is obtained (FIGS. 22 and 23). further,
The base station controller 162 sends a level measurement request indicating that the electric field strength should be measured in these co-adjacent zones to the two mobile stations via the communication channel (FIG. 22,
Figure 23 ').

Further, when the base station controller 162 collects the electric field strengths measured by these mobile stations in response to such a level measurement request (FIG. 23 '), both of these electric field strengths have already been described. If the result is false, no processing is performed, but if the result is false, the above-mentioned co-adjacent zone is determined as the transition destination. (FIG. 22).

Further, the base station control unit 162, for the transfer destination determined in this way, complete call table 1
31. If there is a wireless channel assigned to the same special number call as the corresponding special number call, refer to 31 and apply the wireless channel (FIG. 22). If not, refer to the wireless channel management table. By applying the wireless channel that is available at that time (FIG. 22), the handoff process (FIG. 23, FIG. 23) is performed in the same manner as the invention according to claim 4.

As described above, according to the present embodiment, in the case where the compulsory handoff cannot be performed while ensuring the transmission quality with respect to any of the adjacent zones in which there are completed calls related to the same type of special number call. 24, the handoff is performed for the wireless channel of the third adjacent zone that is adjacent to both of these adjacent zones, as shown by contrasting the dotted line and the solid line in FIG. Compared to the corresponding embodiments, the possibility of allocating a common radio channel for such a completed call is expanded,
The utilization efficiency of radio frequencies is further enhanced.

In the above-described embodiment, the invention described in claim 7 is applied to the invention described in claim 6, but the invention described in claim 7 is applied to claims 4 and 5. The present invention is applicable to the invention described in claim 5 in the same manner, and may not be applied to the invention described in claim 6. FIG. 25 is an operation flowchart of this embodiment corresponding to the inventions described in claims 8 and 9.

FIG. 26 is a diagram for explaining the operation of this embodiment corresponding to the invention described in claim 8. Below, FIG.
The operation of this embodiment corresponding to the invention described in claim 8 will be described with reference to FIGS. Mobile station 16
4 ₁ to 164 _N are all also individually color code is assigned, radio TDMA system that is formed through the radio base station 161 ₁ to 161 _M under the radio channel setting control the base station controller 162 carries out As shown in FIG. 26, the transmission path forms a frame composed of three time slots and a superframe composed of eighteen consecutive frames arranged in chronological order.

Further, in each time slot, a synchronization word (hereinafter, referred to as "first synchronization word") assigned only to the time slot located at the head of the above-mentioned superframe.
Say. ) And a sync word (hereinafter referred to as “second sync word”) commonly assigned to all other time slots. Base station control device 1
When recognizing the time point at which the special number call described above is a completed call based on the procedure of the wireless channel setting control, the integer 62 does not overlap with the preceding completion call related to the same special number call (here,
It takes a value from "0" to "17". ) Is generated, and the integer is transmitted to the mobile station (here, for the sake of simplicity, represented by reference numeral “164 ₁ ”) that is the source of the corresponding completed call.

On the other hand, in the mobile station 164 ₁ , the processor 1
72 ₁ is an antenna 173 ₁ and an antenna control unit 168 _1.
By detecting the first time slot of each superframe by monitoring the above-mentioned first synchronization word via the receiving unit 169 ₁ and receiving the above-mentioned integer, the frame containing the first time slot is detected. Among the time slots included in the frame whose relative frame number is indicated by the integer, the transmission is performed only in any time slot corresponding to the color code assigned to itself (FIG. 25).

That is, with respect to a plurality of mobile stations to which a specific radio channel is commonly assigned under the TDMA system and which continues the call state, the downlink transmission information transmitted from the radio base station is received in parallel. However, the unique time slot for transmitting the opposite upstream transmission information is surely allocated (FIGS. 26A and 26B). Therefore, in these mobile stations, the power consumption required for transmission is reduced,
In addition, it becomes possible to reliably notify the base station control device 162 of control information such as the timing of ending the call and the measurement result of the electric field strength via the radio base station.

In the present embodiment, the present invention is applied to a TDMA radio channel in which a multiframe is composed of 18 consecutive frames in a time series order. It is applicable regardless of frame and frame. Further, in the present embodiment, a unique time slot is assigned to each mobile station, but the present invention is not limited to such a unique time slot, and even if a plurality of mobile stations transmit at that time. If the state is surely detected and the desired transmission efficiency is secured, it is possible to assign the same time slot to a plurality of mobile stations in an overlapping manner.

The operation of this embodiment corresponding to the invention described in claim 9 will be described below with reference to FIGS. 25 and 29. In this embodiment, the processor 172 ₁ determines a time slot to be transmitted in the same manner as in the embodiment of the invention according to claim 8 described above. However, if the processor 172 _1, whether there is transmission information to be notified to the base station controller 162 as the measurement results of the field strength constantly monitoring (Fig. 25), there is such a transmission information Transmission is limited (Fig. 25).

Therefore, in the mobile station 1641, as long as the reduction of the transmission rate of the transmission information can be tolerated, the mobile station 164 ₁ secures the transmission path of the transmission information and consumes less power than the embodiment corresponding to the invention of claim 8. Can be reduced. FIG. 27 is an operation flow church of this embodiment corresponding to the invention of claim 10.

FIG. 28 is a diagram for explaining the operation of this embodiment corresponding to the invention described in claim 10. Below, FIG.
The operation of this embodiment corresponding to the invention described in claim 10 will be described with reference to FIGS.

When the base station controller 162 recognizes that the special call as described above has become a completed call, the maximum holding time of the radio channel assigned to the completed call is a predetermined value (for example, 1 minute). ) Is set, and timing of a period equal to the maximum holding time is started (FIGS. 27 and 28). Further, in the mobile station (here, for the sake of simplicity, it is assumed to be indicated by reference numeral “164 ₁ ”) in which such a completed call occurs,
The processor 172 ₁ recognizes the start of the call based on the instructions of the radio channel setting control starts counting the period equal to the maximum hold time described above (FIGS. 27, 28
).

The base station controller 162 monitors the end of the clocking thus started (FIGS. 27 and 28),
Moreover, the processor 172 ₁ performs the same monitoring to the transmission unit 167 ₁ without activating any transmission (FIG. 27).
, FIG. 28). Furthermore, the processor 172 _1, break away from the communication state without the any transmission to a speech channel corresponding to recognize the end of the counting (Fig. 27
, FIG. 28).

On the other hand, when the base station control unit 162 similarly recognizes the end of the time counting, it carries out the end call processing of the corresponding completed call (FIGS. 27 and 28). It should be noted that, regarding the process of such an end call process, when there is a completed call to which the same wireless channel is allocated, the process of canceling the acquisition of the wireless channel is omitted except that it is a known technique. Since they are the same, their explanation is omitted here.

As described above, according to the present embodiment, no transmission is performed to the mobile station that is in the call state due to the completion of the special number call, and the end of the call is reliably performed. , 9, the power saving efficiency is further improved as compared with the embodiment corresponding to the invention described in 9 above. In the above-described embodiment, the method and subject for determining the maximum holding time are not shown in detail, but the maximum holding time is surely given at the time when it is required under the procedure of the wireless channel setting control. Then, for example, the base station controller 162 or the exchange 163 may dynamically set each call and notify the mobile station via the base station controller.

[0123] Further, in the present embodiment, the maximum hold time counting is performed in parallel by the base station controller 162 and the mobile station 164 ₁ is not limited to such a configuration, for example, in FIG. 28 as shown by the dotted line, the base station controller 162 sends a disconnect signal when the call termination process, the mobile station 164 ₁ may be configured to break away from the call state at the time of the recognition by receiving the disconnection signal ..

Further, regarding such a disconnection signal,
A configuration in which a plurality of mobile stations that are in a call state on a common wireless channel can be individually identified, and if this is not possible, only the mobile station that leaves the call state last is sent. May be Further, in each of the above-described embodiments, the completed call table 131 is provided in the base station controller 162, but the present invention is not limited to such a configuration, and for example, the exchange 163 as subscriber (service order) information. May be provided for.

Further, in each of the above-mentioned embodiments, the adjacent zone management table 141 is provided in the base station controller 162, but the present invention is not limited to such a configuration.
The exchange 163 may be provided as system configuration information indicating a route (trunk group) corresponding to each wireless channel. Further, in each of the above-described embodiments, the present invention is applied to a digital mobile communication system in which wireless transmission is performed based on the TDMA system, but the present invention is not limited to such a mobile communication system. FDMA system and C
It can be similarly applied to the mobile communication system to which the DMA method is applied.

[0126]

As described above, according to the first aspect of the invention, for an outgoing call to a destination not receiving a call,
A wireless channel common to the preceding completed call to the destination is reliably assigned.

According to the second aspect of the present invention, for the same outgoing call, the completion of connecting to the similar destination ahead of the zone adjacent to the wireless zone in which the mobile station where the outgoing call originated is located When a call exists, a common radio channel is assigned after confirming that the transmission quality can be secured by the received wave coming from the adjacent zone. Claim 3
In the invention described in (1), when a completed call connected to the same destination that does not transmit to the adjacent zone occurs in parallel, the other mobile station of the source located in one of these adjacent zones Since the channel switching during a call to the wireless zone of 1 is actively attempted, such a channel switching during a call cannot be completed. The number of mobile stations staying is reduced, and the time when the acquisition of the wireless channel is released is accelerated.

According to the invention described in claim 4, all mobile stations located in the same radio zone as the mobile station to be subjected to channel switching during a call and having a common radio channel assigned to the same destination. , Since the channel switching during the call to the adjacent zone of the wireless zone is attempted in parallel, the mobile stations to which such a common wireless channel is allocated are actively distributed to the adjacent zone and the acquisition related to the wireless channel is acquired. Will be promoted.

According to the invention described in claim 5, in the same way, for a wireless zone in which there is a completed call to which a common wireless channel is allocated with the called party, there exists an incoming call in a zone adjacent to the wireless zone. Since the active call channel switching of the completed call having the same destination is performed, the acquisition or the release of the acquisition of the wireless channel allocated to the completed call in these adjacent zones is promoted.

According to the invention described in claim 6, the wireless channels individually and commonly assigned as wireless transmission paths to the same destination in the adjacent zone of the co-adjacent zone are similarly shared in the co-adjacent zone. Since the number of mobile stations that continue the call state is reduced, the acquisition or the cancellation of the acquisition can be promoted because the wireless channels assigned to the wireless channels are actively switched and merged.

According to the invention described in claim 7, when there is a completed call connected to the same destination in the switching destination wireless zone, the common radio assigned to the completed call is switched after the busy channel is switched. The call state can be continued through the channel. In the inventions according to claims 8 and 9, the wireless channels commonly assigned as wireless transmission paths to the destinations that do not receive the call are those of a plurality of mobile stations to which these wireless channels are assigned in parallel. It is also used for transmission, and it becomes possible to reliably notify the wireless line control means of control information adapted to the timing of call termination and the procedure of wireless channel setting control.

According to the tenth aspect of the present invention, the radio channels commonly assigned as radio transmission paths to the destinations not receiving the call are transmitted by a plurality of mobile stations to which these radio channels are assigned. Is also shared, and the acquisition is canceled under the judgment made independently by these mobile stations and wireless line control means. Therefore, in the wireless communication system to which these inventions are applied, the utilization efficiency of the radio frequency is significantly increased compared with the conventional example, the running cost is reduced and the service quality is improved, and the service quality is maintained. Then, the number of terminal devices that can be accommodated without changing the radio frequency band is expanded.

[Brief description of drawings]

FIG. 1 is a principle block diagram of the invention according to claims 1 to 3 and 8 to 10.

FIG. 2 is a principle block diagram of the invention described in claims 4, 7-10.

FIG. 3 is a principle block diagram of the invention described in claims 5-10.

FIG. 4 is an operation flowchart of the present embodiment corresponding to the invention described in claim 1.

FIG. 5 is a diagram for explaining the operation of the present embodiment corresponding to the invention described in claim 1.

FIG. 6 is a diagram showing a configuration of a completed call table.

FIG. 7 is an operation flowchart of the present embodiment corresponding to the invention described in claim 2;

FIG. 8 is a diagram (1) explaining the operation of the present embodiment corresponding to the invention described in claim 2;

FIG. 9 is a diagram (2) explaining the operation of the present embodiment corresponding to the invention described in claim 2;

FIG. 10 is a diagram showing a configuration of an adjacent zone management table.

FIG. 11 is an operation flowchart of the present embodiment corresponding to the invention of claim 3;

FIG. 12 is a diagram (1) for explaining the operation of the present embodiment corresponding to the invention recited in claim 3;

FIG. 13 is a diagram (2) explaining the operation of the present embodiment corresponding to the invention of claim 3;

FIG. 14 is an operation flowchart of this embodiment corresponding to the invention described in claim 4;

FIG. 15 is a diagram (1) explaining the operation of the present embodiment corresponding to the invention recited in claim 4;

FIG. 16 is a diagram (2) explaining the operation of the present embodiment corresponding to the invention of claim 4;

FIG. 17 is a diagram showing a structure of monitoring information including electric field strength.

FIG. 18 is a first operation flowchart of the present embodiment corresponding to the invention of claim 5;

FIG. 19 is a second operation flowchart of the present embodiment corresponding to the invention of claim 5;

FIG. 20 is a diagram (1) explaining the second operation of the present embodiment corresponding to the invention of claim 5;

FIG. 21 is a diagram (2) explaining the second operation of the present embodiment corresponding to the invention described in claim 5;

FIG. 22 is an operation flowchart of the present embodiment corresponding to the invention described in claims 6 and 7;

FIG. 23 is a diagram (1) explaining the operation of the present embodiment corresponding to the inventions described in claims 6 and 7;

FIG. 24 is a diagram (2) explaining the operation of the present embodiment corresponding to the inventions recited in claims 6 and 7;

FIG. 25 is an operation flowchart of the present embodiment corresponding to the invention described in claims 8 and 9.

FIG. 26 is a diagram for explaining the operation of this embodiment corresponding to the invention of claim 8;

FIG. 27 is an operation flow church of the present embodiment corresponding to the invention of claim 10;

FIG. 28 is a diagram for explaining the operation of this embodiment corresponding to the invention of claim 10;

[Fig. 29] Fig. 29 is a diagram illustrating a configuration example of a mobile communication system.

[Explanation of symbols]

11,41 Wireless line control means 12,42 Exchange means 13 Call type identification means 14,43 Allocation result recording means 15 Overlapping allocation means 21,44 adjacent zone storage means 23 Adjacent zone allocation means 31, 46, 62, 72 Channel switching means 45, 61, 71 measurement command means 91,164 mobile stations 92,101 Transmission timing control means 93,102 transmission control means 111 Timekeeping means 112 End call control means 131 Completed Call Table 141 Adjacent zone management table 161 wireless base station 162 Base station controller 163 exchange 165 microphone 166 A / D converter 167 Transmitter 168 Antenna control unit 169 Receiver 170 D / A converter 171 receiver 172 processor 173 antenna

─────────────────────────────────────────────────── ─── Continuation of front page (72) Inventor Masahiro Kaneko 3-2-1 Sakado, Takatsu-ku, Kawasaki City, Kanagawa Prefecture, Fujitsu Network Engineering Co., Ltd. (56) Reference JP-A-8-172405 (JP, A) ) (58) Fields surveyed (Int.Cl. ⁷ , DB name) H04B ⁷ /24-7/26 H04B 7/26 102 H04Q 7/00-7/38

Claims (10)

(57) [Claims] 1. A radio which should acquire identification information indicating a destination based on a procedure of radio channel setting control for an outgoing call of a mobile station located in a radio zone formed by the own station and use for transmission of a call signal. Radio line control means for allocating a channel, and performing call processing of the outgoing call by analyzing the identification information acquired by the radio line control means based on a number plan,
And a switching means for forming a communication path corresponding to the wireless channel allocated by the wireless line control means, wherein the switching means determines whether or not the destination of the outgoing call receives the call based on the numbering plan. The wireless line control means individually identifies the callee to which the wireless channel is assigned, and the caller identification information that indicates the caller. And an allocation result recording unit that records the wireless channel and the wireless channel in association with each other, the result of the determination performed by the call type identification unit is false, and the acquired identification information is recorded in the allocation result recording unit. Of the wireless channel recorded in the allocation result recording means in association with the identification information when the result is true. Radio channel assignment control method according to claim Rukoto. 2. The wireless channel allocation control system according to claim 1, further comprising: adjacent zone storage means for storing in advance adjacent zones formed adjacent to each other for each wireless zone, and the assignment result recording means: The zone identification information indicating the wireless zone in which the outgoing call originated is recorded together with the identification information in association with the wireless channel. When the result determined by the duplicate allocating means is false, the wireless line control means identifies the originating call in the allocation result recording means among the adjacent zones stored in the adjacent zone storage means. For the adjacent zone in which the wireless channel corresponding to the same identification information as the information is recorded, the wireless station setting control procedure is applied to the mobile station where the outgoing call originated Based on this command, the electric field strength is commanded, and the electric field strength obtained according to the command is compared with the lower limit value that can be used for communication. When the former exceeds the latter, the wireless channel is targeted for allocation A wireless channel allocation control method comprising: adjacent zone allocation means. 3. The wireless channel allocation control system according to claim 1, further comprising: adjacent zone storage means for storing adjacent zones formed adjacent to each other in advance for each wireless zone, and the assignment result recording means: Zone identification information indicating the wireless zone in which the outgoing call originated,
The originator identification information indicating the originator of the outgoing call is associated with the wireless channel and recorded together with the identification information, and the duplication allocating means adds that the zone identification information matches as a condition of true / false discrimination. The wireless line control means, among the adjacent zones stored in the adjacent zone storage means,
Regarding the mobile station indicated by the caller identification information recorded in the allocation result recording means in association with the same identification information as the originating call, the duplication allocation means selects the mobile station based on the procedure of the radio channel setting control. A wireless channel assignment control method, comprising: a channel switching unit that switches a channel during a call to either one of the assigned wireless channel and the wireless channel assigned by the wireless line control unit. 4. With respect to an outgoing call of a mobile station located in a wireless zone formed by the own station, identification information indicating a destination is acquired based on a procedure of radio channel setting control, and all the identification information is the same. Radio line control means for allocating a common radio channel for each radio zone to an outgoing call, and performing call processing of the outgoing call by analyzing the identification information acquired by the wireless line control means based on a numbering plan,
A switching means for forming a communication path corresponding to the wireless channel assigned by the wireless line control means, and a caller individually indicating a source of the outgoing call to which the common wireless channel is assigned by the wireless line control means. Allocation result recording means for recording the identification information, its wireless channel, and zone identification information indicating the generated wireless zone in association with each other, and for the wireless zones formed by the wireless line control means, the adjacent adjacent zones are individually set in advance. Adjacent zone storage means for storing, the wireless line control means, for the outgoing call for which the identification information is recorded in the allocation result recording means, activation of in-call channel switching based on the procedure of the wireless channel setting control. And a means for detecting a factor, wherein the activation factor is detected by the wireless line control means. In the adjacent zone stored in the adjacent zone storage means corresponding to the wireless zone where the mobile station of the originator of the outgoing call in which the activation factor has occurred is located, the caller identification information is stored in the allocation result storage means. Measurement command means for obtaining all the adjacent zones in which is recorded and for instructing all mobile stations indicated by the caller identification information to measure the electric field strength of these adjacent zones based on the procedure of the radio channel setting control. And, of all the adjacent zones, obtains an adjacent zone in which the electric field strength collected according to these commands based on the procedure of the wireless channel setting control exceeds a lower limit value that can be used for a call, and the allocation result recording means Of the caller identification information recorded in, for all mobile stations indicated by the caller identification information corresponding to the same zone identification information as the caller in which the activation factor is detected, Radio channel assignment control method characterized by comprising a channel switching means for performing a call during channel switching to contact zone. 5. Regarding an outgoing call of a mobile station located in a wireless zone formed by the own station, identification information indicating a destination is acquired based on a procedure of wireless channel setting control, and all the identification information is the same. Radio line control means for allocating a common radio channel for each radio zone to an outgoing call, and performing call processing of the outgoing call by analyzing the identification information acquired by the wireless line control means based on a numbering plan,
A switching means for forming a communication path corresponding to the wireless channel assigned by the wireless line control means, and a caller individually indicating a source of the outgoing call to which the common wireless channel is assigned by the wireless line control means. Allocation result recording means for recording the identification information, its wireless channel, and zone identification information indicating the generated wireless zone in association with each other, and for the wireless zones formed by the wireless line control means, the adjacent adjacent zones are individually set in advance. Adjacent zone storage means for storing, the wireless line control means, by referring to the adjacent zone storage means based on the zone identification information recorded in the allocation result recording means, all zone identification information of the adjacent zone The sender identification information recorded in the allocation result recording means in correspondence with these zone identification information. To all mobile stations shown, measurement command means for commanding the measurement of the electric field strength of each adjacent zone based on the procedure of the wireless channel setting control, among all the adjacent zones, under the procedure of the wireless channel setting control In the transfer destination zone where the average value of the electric field strengths collected in accordance with the above command is the maximum, all mobile stations whose value exceeds the lower limit value that can be used for a call as the electric field strength of the transfer destination zone are selected. The wireless channel allocation control method according to claim 1, further comprising: a channel switching unit that switches a channel during a call to the transfer destination zone. 6. Regarding an outgoing call of a mobile station located in a wireless zone formed by the own station, identification information indicating a destination is acquired based on a procedure of wireless channel setting control, and all the identification information is the same. Radio line control means for allocating a common radio channel for each radio zone to an outgoing call, and performing call processing of the outgoing call by analyzing the identification information acquired by the wireless line control means based on a numbering plan,
A switching means for forming a communication path corresponding to the wireless channel assigned by the wireless line control means, and a caller individually indicating a source of the outgoing call to which the common wireless channel is assigned by the wireless line control means. Allocation result recording means for recording the identification information, its wireless channel, and zone identification information indicating the generated wireless zone in association with each other, and for the wireless zones formed by the wireless line control means, the adjacent adjacent zones are individually set in advance. Adjacent zone storage means for storing, of the adjacent zones stored in the adjacent zone storage means,
A co-adjacent zone having a plurality of adjacent zones is obtained, and a radio channel is set to all mobile stations indicated by the caller identification information recorded in the allocation result recording means corresponding to the zone identification information of the plurality of adjacent zones. A measurement command means for commanding the measurement of the electric field strength of the co-adjacent zone based on a control procedure, and an electric field exceeding a lower limit value that can be used for a call under the radio channel setting control procedure among all the mobile stations. A radio channel allocation control method, comprising: a channel switching unit that switches a channel during a call to the co-adjacent zone for a mobile station whose strength is collected according to the command. 7. The wireless channel allocation control method according to claim 4, wherein the wireless line control means corresponds to zone identification information indicating a wireless zone of a switching destination of active channel switching. Wireless channel allocation control characterized by including means for determining whether the wireless channel is recorded in the allocation result recording means, and setting the wireless channel as the switching destination when the result is true. method. 8. The radio channel allocation control method according to claim 1, further comprising: a mobile station that receives transmission information via the allocated radio channel, and the radio channel control means Has a transmission timing control means for allocating a unique transmission timing to each mobile station indicated by the caller identification information recorded for each wireless zone in the allocation result recording means, based on the procedure of the wireless channel setting control, The radio channel allocation control method, wherein the mobile station has a transmission control means for transmitting transmission information to the radio channel at the transmission timing allocated by the transmission timing notifying means. 9. The radio channel allocation control method according to claim 1, further comprising: a mobile station that receives transmission information via the allocated radio channel, and the radio channel control means Specifies the unique transmission timing for each mobile station indicated by the caller identification information recorded for each wireless zone in the allocation result recording means, according to the permission of transmission requested based on the procedure of the wireless channel setting control. Transmission timing control means for allocating, to the mobile station, based on the procedure of the radio channel setting control, requesting permission of the transmission, to the radio channel at the transmission timing allocated by the transmission timing notifying means. A wireless channel allocation control method, comprising: transmission control means for transmitting transmission information by means of a transmission method. 10. The radio channel allocation control system according to claim 1, further comprising a mobile station that receives transmission information via the allocated radio channel, and the radio channel control means The means for measuring a predetermined holding time from the time when the radio channel is allocated as a starting point, and having means for canceling the allocation of the radio channel when the time is completed, the mobile station, Based on the procedure of the wireless channel setting control, when the wireless channel is assigned as a starting point, the time keeping means for measuring the holding time, and the time keeping means when the time counting of the holding time is completed,
A radio channel allocation control method, comprising: a call termination control means for withdrawing from a call state.