JP3686848B2 - Channel switching method, mobile communication switch and program - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to radio channel switching control in a mobile communication system. The present invention is used in a large-capacity digital mobile communication switch (NMLS) that accommodates a large number of radio control areas.
[0002]
[Prior art]
A large-capacity digital mobile communication switching system that accommodates a large number of radio control areas has been developed including a subscriber switching function, a relay switching function, and a gateway switching function in a conventional PDC (Personal Digital Cellular Telecommunication System) system.
[0003]
A conventional digital mobile communication switching system has a multiprocessor configuration including a plurality of processors for realizing a subscriber switching function and a relay switching function. However, processing sharing such as call processing in the processors is performed by a processor load balancing method. Was taken. In other words, for example, the processing of a call processor that performs call control such as call establishment, channel establishment, and channel release is performed by any call processing processor in the entire radio control area (base station) accommodated by the local exchange. It can be processed.
[0004]
[Problems to be solved by the invention]
However, in the processor load distribution method, the same base station and radio communication line must be accommodated and managed by all call processors in one exchange, and the base stations and radio call lines are distributed and accommodated for each processor. Therefore, there are limits to the number of base stations and radio communication lines that can be accommodated in one exchange. In addition, a large-capacity digital mobile communication switching system for the purpose of expanding the accommodation of the number of base stations and the number of radio communication lines. Instead of the conventional processor load distribution system, a multiprocessor system that distributes base stations and distributes the base stations. When the mobile station moves between different base stations accommodated in one exchange area, it is necessary to switch channels between processors in order to continue the call. Furthermore, in a large-capacity digital mobile communication switching system, when the area is expanded and the number of radio channels that can be accommodated increases, traffic increases, so the influence on the processing capacity of the switching system increases. For this reason, the switching control that occurs between the channel switching source processor and the channel switching destination processor of the multiprocessor is efficiently processed by software without increasing the switching control load by effectively using the resources in the switch. There is a need for a channel switching control technology that can be used.
[0005]
The present invention solves such a problem, and in a multiprocessor type digital mobile communication switching system, a method and an apparatus capable of effectively using resources in response to an increase in area, an increase in the number of radio channels, and an increase in traffic. The purpose is to provide. Another object of the present invention is to enable control by channel switching control software in a multiprocessor system. It is another object of the present invention to enable channel switching control by effectively using resources not only within the exchange but also between processors with other exchanges.
[0006]
[Means for Solving the Problems]
When a mobile station moves between base stations accommodated in different call processing processors in the exchange and channel switching is required, channel switching is performed between the call processing processors to continue the call. At this time, the call processing processor (hereinafter referred to as the call control processor) that accommodates the radio control area in which the mobile station was located when the first radio channel for outgoing or incoming calls was established was fixed, and then the mobile station moved. When the call processor that accommodates the previous radio control area is positioned as a visiting processor, the call control processor does not move until the call is completed, and the mobile device moves to the radio control area that is accommodated by another call processor. The call control processor takes the lead, establishes a new radio channel, controls the communication path in the exchange, and controls the release of the old channel, and sequentially switches to the visited processor at the destination. In this case, with the call control processor as a base point, channel switching is performed between a maximum of three processors: a switching source processor (old area processor) and a switching destination processor (new area processor). After the channel switching is completed, inter-processor connection control between the two processors of the call control processor and the visited processor is only performed. In this way, the call control processor is fixed and the in-zone processor is switched at any time, so that redundant use of resources in the switch and complication of switching processing can be prevented, the number of communications between processors can be reduced, and processing capacity can be reduced. Can be reduced.
[0007]
In addition, channel switching between processors led by a call control processor is not limited to channel switching between processors when a radio control area in one switch is moved, but also when a radio control area that spans between switches is moved. Applicable to. In this case, channel switching control may be performed by performing inter-processor communication with a call processing processor of another exchange using a common signal line instead of inter-processor communication using the HUB in the exchange.
[0008]
Furthermore, these channel switching controls can be executed by installing a program in a multiprocessor type mobile communication switch.
[0009]
That is, the present invention includes a plurality of call processing processors, and each call processing processor establishes a radio channel by transmission or reception with respect to a corresponding radio control area, and moves to another radio by moving between radio control areas of a mobile device. In a channel switching method for performing radio channel switching control in a control area, a call processor that first accepts an outgoing call or an incoming call responds to a radio channel switching request from a call processor that accommodates a mobile radio area in which the mobile station is located. The call processor that accommodates the destination radio control area is requested to establish a new radio channel for channel switching by inter-processor communication.
[0010]
In addition, the present invention includes a plurality of call processors, each of which accommodates a corresponding radio control area, and a mobile device located in the radio control area moves to another radio control area In the mobile communication switching system having control means for performing radio channel switching control, the control means of the call processor that first accepts outgoing or incoming calls performs radio channel switching control of the mobile equipment moving in the radio control area, Accepts a radio channel switching request from a call processor that accommodates a radio control area that is in the area, and establishes a new radio channel for the call processor that accommodates the destination radio control area by communication between processors in the exchange It comprises a means for requesting.
[0011]
Further, the present invention is a program, which is installed in an exchange having a plurality of processors, so that the processor accommodates a radio control area, and a mobile station located in the radio control area can perform other radio control. Operate as a call processor that performs radio channel switching control when moving to an area, and the first call processor that receives a call or incoming call is used to control the radio channel switching control of a mobile device moving in the radio control area. Accepts a radio channel switching request from a call processor that accommodates the radio control area in the middle, and requests a call processor that accommodates the destination radio control area to establish a new radio channel through inter-processor communication in the exchange. It is characterized by operating as a processor.
[0012]
In addition, the present invention includes a plurality of call processing processors, and each call processing processor establishes a radio channel by transmission or reception to a corresponding radio control area, and moves to another radio by moving between radio control areas of a mobile device. In a channel switching method for performing radio channel switching control in a control area, a call processor that first accepts an outgoing call or an incoming call responds to a radio channel switching request from a call processor that accommodates a mobile radio area in which the mobile station is located. Requesting a call processor belonging to another exchange accommodating the destination radio control area to establish a new radio channel for channel switching via a common signal line trunk. To do.
[0013]
In addition, the present invention includes a plurality of call processors, each of which accommodates a corresponding radio control area, and a mobile device located in the radio control area moves to another radio control area In the mobile radio exchange having control means for performing radio channel switching control, the control means of the call processor that first accepts outgoing or incoming calls performs radio channel switching control of the mobile equipment moving in the radio control area, Accepts a radio channel switching request from a call processor that accommodates a radio control area that is in the service area, and establishes a new radio channel for the call processor of another switch that accommodates the destination radio control area. Means is provided for requesting via a trunk.
[0014]
Furthermore, the present invention is a program that is installed in an exchange having a plurality of processors, so that each processor accommodates a corresponding radio control area, and a mobile station located in the radio control area is provided. Operates as a call processor that controls switching of radio channels when moving to another radio control area, and controls the radio channel switching control of a mobile device that moves in the radio control area using the call processor that first accepts outgoing or incoming calls. Receive a radio channel switching request from a call processor that accommodates the radio control area that is in the service area, and share a new radio channel establishment with the call processor of another switch that accommodates the destination radio control area. It is characterized by operating as a processor that makes a request through a communication line trunk.
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the drawings.
[0015]
FIG. 1 shows the relationship between a call processor and a base station controller, and a base station controller and a radio control area of a switch (large capacity digital mobile communication switch) in which the present invention is implemented.
[0016]
Here, the exchange accommodates a plurality of base stations and performs radio channel switching control by movement of the mobile station. The base station controller (BCE) is always accommodated in a certain call processor (CLP). Here, the exchange in which the present invention is implemented employs a multiprocessor configuration, and has a base station accommodation configuration in which a plurality of base station controllers are distributed and accommodated in each call processor (CLP). A call is also made when a mobile station subscriber moves from an area covered by a base station controller (BCE) to an area covered by a base station controller (BCE) accommodated in another call processor (CLP). Can be continued, and when the mobile phone moves multiple times across different areas of the accommodated call processing processor (CLP) in the exchange, the internal resources of the exchange can be used efficiently and the call can be made with minimal impact on the processing capacity of the exchange. The exchange performs channel switching control to be continued through communication between processors.
[0017]
The base station control device (BCE) manages a plurality of radio control areas (CZ) that are further divided into areas. A mobile device subscriber who is in the radio control area (CZ) 15 under the base station controller (BCE) 13 accommodated in the call processor 11 (# 1) is called a radio control area 15 by a call processor. When the call processing processor (# 2) 12 moves to the area (CZ) 16 under the base station controller (BCE) 14 accommodated, the call channel is switched between the call processing processors (CLP) 11 and 12, and the call is switched. Switching control is performed to guarantee the state.
[0018]
(First Example)
FIG. 2 shows the connection relationship between the call processor (# 1, # 2) of the exchange, the base station controller (BCE), and the radio control area (CZ) in the first embodiment of the present invention. FIG. 3 is a sequence for explaining a channel switching method when moving from the radio control area (CZ14) to the radio control area (CZ21) in FIG.
[0019]
Here, reference numeral 20 indicates a network of the exchange, and indicates a switch (SW), a bus (HUB) and the like behind the call processor. Reference numerals 21 and 22 denote call processing processors of the exchange. The call processing processors 21 and 22 include connection control units 211 and 221, resource management units 212 and 222, and path control units 213 and 223, respectively. Yes. Reference numeral 214 denotes a base station controller (BCE) accommodated in the call processor 21, and reference numeral 224 denotes a base station controller accommodated in the call processor 22. Reference numeral 215 indicates CZ # 14 in the radio control area, and reference numeral 225 indicates CZ # 21 in the radio control area.
[0020]
Next, the overall operation of the first embodiment will be described in detail with reference to the sequence diagrams of FIGS.
[0021]
When a mobile station that is in communication with the radio control area (CZ # 14) 215 and moves to the zone of the radio control area (CZ # 21) 225, the base station control device 214 moves to the base station control device 224. Request free radio channel selection. The base station control device 224 selects one free channel in the own radio control area and notifies the base station control device 214 of it. In the base station control device 214, in order to request the switch network to switch to the selected channel, the channel to the new service area for the connection control unit 211 of the call processor 21 currently performing the call control. Request switching.
[0022]
Here, the connection control unit 211 determines the base station control device (BCE # 2) 224 accommodated in the radio control area (CZ # 21) 225 designated as the switching destination by station data conversion. Further, the call processor (# 2) 22 accommodated in the determined base station controller is determined by station data conversion. The connection control unit 211 requests the connection control unit 221 of the call processing processor # 2 that accommodates the determined new service area to capture the call line by inter-processor communication in order to establish a new wireless channel. .
[0023]
The connection control unit 221 requests the resource management unit 222 to acquire a communication line corresponding to the wireless channel requested from the connection control unit 211. The location information (for example, interface number) in the NW of the exchange is collected from the resource management unit 222 as a result of capturing the call line, and once notified to the connection control unit 211 of the call processor (# 1) 21. The connection control unit 211 issues a path connection request for making a multi-connection using a channel switching trunk between a currently used call line and a call line captured as a new switching destination in order to prevent a call interruption during channel switching. This is performed for the path control unit 213. When the multi-connection state of the call line is established, the connection control unit 211 instructs the connection control unit 221 to establish a new wireless channel. In response to the wireless channel establishment instruction from the connection control unit 211, the connection control unit 221 requests the base station control device (BCE # 2) 224 to establish a wireless channel. The base station controller (BCE # 2) 224 establishes synchronization of radio channels (switches radio channels) between the mobile station located in the radio control area 225 and the base station controller. When the switching is completed, the base station control device (BCE # 2) 224 notifies the connection control unit 221 that the wireless channel setting is completed. The 221 connection control unit notifies the connection control unit 211 of the completion of the wireless channel setting.
[0024]
When the switching of the wireless channel to the new side is completed, the connection control unit 211 requests the path control unit 213 to cancel the multi-connection of the communication line path connection and switch the path to only the new side communication line. After the path connection to the new side call line is completed, the base station controller 214 is requested to release the old side radio channel and the resource management unit 212 is requested to release the old side call line. This completes a series of inter-processor channel switching.
[0025]
(Second embodiment)
FIG. 4 shows a block diagram of the second embodiment of the present invention. After moving from the radio control area (CZ14) 315 shown in FIG. 4 to the radio control area (CZ21) 325 and further moving from the radio control area (CZ21) 325 to the radio control area (CZ31) 335, the call is continued. A channel switching method according to the present invention will be described. FIG. 5 is a sequence showing a switching method.
[0026]
Here, as in FIG. 2, reference numeral 30 denotes a network of the exchange, reference numerals 31, 32, and 33 denote call processing processors of the exchange, reference numerals 311, 321, and 331 denote connection control units, and reference numerals 312, 322, and 332 denote resource management. , 313, 323, and 333 are path control units, reference numerals 314, 324, and 334 are base station control devices (BCE), and reference numerals 315, 325, and 335 are radio control areas (CZ).
[0027]
The operation will be described according to the sequence of FIG.
[0028]
When a digital mobile station that is in communication with the radio control area (CZ # 21) 325 moves to the zone of the radio control area (CZ # 31) 335, the base station control device 324 sends a response to the base station control device 334. To request an available wireless channel. The base station control device 334 selects one free channel in the own radio control area and notifies the base station control device 324 of it.
[0029]
In the base station controller 324, the call processor (# 2) 32 is sent to the connection controller 311 of the call processor 31 that is currently performing the call control in order to request the network 30 of the exchange to switch to the selected channel. Request channel switching to the new service area via. At this time, the connection control unit 311 determines the base station control device (BCE # 3) 334 accommodated in the radio control area (CZ # 31) 335 designated as the switching destination by station data conversion. Further, the call processor (# 3) 33 accommodated in the determined base station controller 334 is determined by station data conversion.
[0030]
In the connection control unit 311, in order to establish a new wireless channel for the connection control unit 331 of the call processor (# 3) 33 that accommodates the determined new service area, the connection control unit 311 performs inter-processor communication. To request. The connection control unit 331 requests the resource management unit 332 to acquire a communication line corresponding to the wireless channel requested from the connection control unit 311. The location information in the NW is collected from the resource management unit 332 as a result of capturing the communication line, and once notified to the connection control unit 311 of the call processor (# 1) 31. The 311 connection control unit issues a path connection request for making a multi-connection between a currently used call line and a call line captured as a new switching destination using a channel switching trunk in order to prevent a call interruption during channel switching. This is performed for the path control unit 313. When the multi-connection state of the communication line is established, the connection control unit 311 instructs the connection control unit 331 to execute the new side wireless channel establishment.
[0031]
The connection control unit 331 requests the base station control device (BCE # 3) 334 to establish a radio channel in response to the radio channel establishment instruction from the connection control unit 311. The base station controller (BCE # 3) 334 establishes synchronization of radio channels (switches radio channels) between the mobile station located in the radio control area (CZ # 31) 335 and the base station controller.
[0032]
When the switching is completed, the base station control device (BCE # 3) 334 notifies the connection control unit 331 of the completion of the wireless channel setting. The connection control unit 331 notifies the connection control unit 311 that the wireless channel has been set. When the switching of the radio channel to the new side is completed, the connection control unit 311 requests the path control unit 313 to cancel the multi-connection of the call line path connection and switch the path to the new side call line only. After the path connection to the new side communication line is completed, connection control of the call processor (# 2) 32 that accommodates the old area in order to release the old side radio channel to the base station controller 324 The unit 321 is instructed to release the radio channel. The 321 connection control unit requests the 324 base station controller (BCE # 2) to disconnect the old radio channel and the 322 resource management unit to release the old side communication line. This completes a series of inter-processor channel switching.
[0033]
(Third embodiment)
The inter-processor channel switching method led by the first “call control processor”, which is the feature of the present invention, is not only the channel switching between the processors when the area in the exchange is moved, but also when the area across the exchanges is moved. The same channel switching can be employed.
[0034]
FIG. 6 is a diagram showing the configuration of the third embodiment of the present invention, and shows an example of channel switching when the radio control area is moved between different exchanges. FIG. 6 shows the base station controller (BCE) covered by the other exchange (NW) from the radio control area (CZ31) after moving from the radio control area (CZ21) shown in FIG. 4 to the radio control area (CZ31). # 4) A diagram illustrating a channel switching method according to the present invention for continuing a call when moving to a radio control area (CZ41) 445 accommodated in 444. FIG. FIG. 7 shows a sequence for explaining this channel switching method.
[0035]
Here, reference numeral 401 indicates a network of exchanges currently located, and reference numeral 402 indicates a network of switching destination exchanges. Reference numerals 41, 42, 43 and 44 denote call processing processes of the exchange. Sa Reference numerals 411, 421, 431, and 441 denote connection control units, reference numerals 412, 422, 432, and 442 denote resource management units, and reference numerals 413, 423, 433, and 443 denote path control units. Reference numerals 414, 424, and 444 denote base station controllers (BCE), reference numerals 415, 425, and 445 denote radio control areas (CZ), and reference numerals 436 and 446 denote common line trunks that connect the exchanges.
[0036]
The channel switching operation will be described based on the sequence of FIG.
[0037]
When a mobile station that is in communication with the radio control area (CZ # 31) 425 and moves to the zone of the radio control area (CZ # 41) 445, the base station control device 424 sends a response to the base station control device 444. The exchange network (NW # 1) 401, 402 requests the selection of an empty radio channel via the exchange network (NW # 2) 402.
[0038]
The base station control device 444 selects one empty channel in the own radio control area and notifies the base station control device 424 of it. The base station controller 424 sends the call processor (# 3) 42 to the connection control unit 411 of the call processor 41 that is currently performing call control in order to request the switch network to switch to the selected channel. Request channel switching to the new service area via. At this time, the connection control unit 411 obtains from the station data that the NW number accommodated in the radio control area (CZ # 41) designated as the switching destination is the other exchange NW number, and switches the channel to the other exchange NW. To start.
[0039]
In the channel switching process to the other exchange NW, the connection control unit 411 requests the inter-office common line trunk for the switching destination NW to the resource control unit 412. The connection control unit 411 acquires the location information in the exchange NW and the call processor number (# 4) that accommodates the captured common line trunk from the resource management unit 412 as the result of capturing the communication line. In the connection control unit 411, in order to prevent a call interruption during channel switching, the currently used communication line and the call line (common line trunk) captured as the new switching destination are connected to the multi-connection using the channel switching trunk. A path connection request is made to the path control unit 413. When the multi-connection state of the communication line is established, the connection control unit 411 accommodates the common line trunk in order to request the exchange NW (# 2) 402 side to establish a new side radio channel between the mobile stations (CZ # 41) 445. The connection control unit 431 of the existing call processor (# 4) 43 is instructed to execute establishment of a new radio channel.
[0040]
The connection control unit 431 establishes a radio channel to the connection control unit 441 by an ISUP (ISDN User Part) signal to a common line trunk connected to the exchange (NW # 2) 402 in response to an instruction to establish a radio channel from the connection control unit 411. Request instructions. In the connection control unit 441, when an instruction to establish a radio channel by an ISUP signal is activated from the exchange NW (# 1) 401, the common line trunk 446 and the radio control area (CZ # 41) in the exchange (NW # 2) 402 are activated. The resource management unit 442 is requested to acquire a call line corresponding to the new wireless channel in 445. The connection control unit 441 acquires the accommodation position information in the exchange NW as a result of capturing the communication line from the resource management unit 442. The connection control unit 441 requests the path control unit 443 to establish a path connection between the common line trunk call line and the radio channel compatible call line in order to establish a call line.
[0041]
When the communication line path is established, the connection control unit 441 requests the base station control device (BCE # 4) 444 to establish a radio channel. The base station controller (BCE # 4) 444 establishes synchronization of radio channels (switches radio channels) between the mobile station located in the radio control area 445 and the base station controller. When the switching is completed, the base station control device (BCE # 4) 444 notifies the connection control unit 441 of the completion of the wireless channel setting. The connection control unit 441 notifies the connection control unit 431 on the exchange NW (# 1) 401 side of the completion of the setting of the wireless channel by an ISUP signal.
[0042]
The connection control unit 431 notifies the connection control unit 411 of the call processor (# 1) 41, which is a call control processor, that the switching of the new radio channel has been completed through inter-processor communication. The connection control unit 411 requests the path control unit 413 to cancel the multi-connection of the communication line path connection and to switch the path to only the new side communication line when the switching to the new side wireless channel is completed. After the path connection to the new side communication line is completed, connection control of the call processor (# 3) 42 accommodating the old area in order to release the old side radio channel to the base station controller 424 The unit 421 is instructed to release the radio channel. The connection control unit 421 requests the base station control device (BCE # 3) 424 to disconnect the old radio channel and the resource management unit 422 to release the old communication line. Thus, the inter-processor channel switching across NWs by the call control processor initiative method is completed.
[0043]
In addition, it can be made to operate | move as a switch of the said Example by installing a program in the mobile communication switch of a multiprocessor system. That is, the call processor # 1 is used as a call control processor, and the other call control processors # 2, # 3, # 4, and # 5 are operated as a switching source local call processing processor or a switching destination local call processing processor. Channel switching control can be executed.
[0044]
This program can be stored in a storage medium and installed in an exchange, or can be installed via a communication line.
[0045]
【The invention's effect】
According to the present invention, inter-processor channel switching can be easily performed even between base stations accommodated in different call processing processors in the exchange, and the call can be continued. In addition, even if a subscriber (mobile station) moves across the accommodating processors in the exchange, the inter-processor channel switching control is based on the call control processor that accepted the call during switching, and the switching source processor (former area) And up to three switching destination processors (new visiting areas), and after switching is completed, it is possible to switch the visiting processors any number of times simply by controlling the connection between the two processors, the call control processor and the visiting processor. It was. By adopting a system in which the call control processor is fixed and the processor in the area is switched at any time, the redundant use of the internal resources of the exchange and the complicated switching process can be prevented, and the processing capacity can be reduced by reducing the number of communication between the processors. Furthermore, even if the traffic is increased by expanding the area or increasing the number of radio channels that can be accommodated, it is possible to perform channel switching control without increasing the processing load by effectively using the internal resources of the exchange.
[Brief description of the drawings]
FIG. 1 is a diagram showing a relationship among an exchange, a base station control device, and a radio control area according to the present invention.
FIG. 2 is a diagram for explaining channel switching control according to the first embodiment of the present invention.
FIG. 3 is a sequence showing the operation of the first embodiment.
FIG. 4 is a diagram illustrating channel switching control according to the second embodiment.
FIG. 5 is a sequence showing the operation of the second embodiment.
FIG. 6 is a diagram for explaining channel switching control according to a third embodiment.
FIG. 7 is a sequence showing the operation of the third embodiment.
[Explanation of symbols]
11, 12, 21, 22, 31, 32, 33, 41, 42, 43, 44 call processor
13, 14 Base station controller
15, 16 Wireless control area
211, 221, 311, 321, 331, 411, 421, 431, 441 connection control unit
212, 222, 312, 322, 332, 412, 422, 432, 442 Resource management unit
213, 223, 313, 323, 333, 413, 423, 433, 443 path control unit
401, 402 Exchange NW

Claims (6)

A plurality of call processors, each call processor establishes a radio channel for outgoing or incoming call to a corresponding radio control area, and moves between radio control areas of a mobile station to generate radio channels in other radio control areas. In a channel switching method for performing switching control of
The call processor that first accepts the call or the incoming call, even if the mobile station moves to the radio control area accommodated by another call processor, controls the establishment of a new radio channel and the communication path path control in the exchange. acts as a call control processor for release control of the channel, the radio channel switching request from the call processor to accommodate the visited wireless control area of the mobile station, to the call processor to accommodate the wireless control area of the target A channel switching method characterized by requesting establishment of a new radio channel for channel switching by inter-processor communication. A plurality of call processors, each of which accommodates a corresponding radio control area, and a radio channel switching control when a mobile station located in the radio control area moves to another radio control area; In a mobile communication exchange having a control means for performing
The call processor that first accepts the call or the incoming call, even if the mobile station moves to the radio control area accommodated by another call processor, controls the establishment of a new radio channel and the communication path path control in the exchange. acts as a call control processor for release control of a channel, the control unit of the call processing processor, the radio channel switching control of the mobile station to move the radio control area, call processing for accommodating a radio control area in the visited Mobile communication comprising means for receiving a radio channel switching request from a processor and requesting a call processor that accommodates a destination radio control area to establish a new radio channel by inter-processor communication in an exchange switch. By being installed on a switch with multiple processors,
The processor is operated as a call processing processor that accommodates a radio control area and performs switching control of radio channels when a mobile device located in the radio control area moves to another radio control area,
Even if the mobile processor moves to the radio control area accommodated by another call processor, the call processor that accepts the first call or incoming call will be able to establish a new radio channel and control the communication path in the switch. is operated as a call control processor for release control of a channel, the radio channel switching control of the mobile station to move the radio control area receives the radio channel switching request from the call processor to accommodate the wireless control area in the visited, A program that causes a call processor that accommodates a destination radio control area to operate as a processor that requests establishment of a new radio channel through inter-processor communication in an exchange. A plurality of call processors, each call processor establishes a radio channel for outgoing or incoming call to a corresponding radio control area, and moves between radio control areas of a mobile station to generate radio channels in other radio control areas. In a channel switching method for performing switching control of
The call processor that first accepts the call or the incoming call, even if the mobile station moves to the radio control area accommodated by another call processor, controls the establishment of a new radio channel and the communication path path control in the exchange. acts as a call control processor for release control of the channel, the radio channel switching request from the call processor to accommodate the visited wireless control area of the mobile station, a call belonging to another exchange for housing a radio control area of the target A channel switching method characterized by requesting a processing processor to establish a new radio channel for channel switching via a common signal line trunk. A plurality of call processors, each of which accommodates a corresponding radio control area, and a radio channel switching control when a mobile station located in the radio control area moves to another radio control area; In a mobile radio exchange having control means for performing
The call processor that first accepts the call or the incoming call, even if the mobile station moves to the radio control area accommodated by another call processor, controls the establishment of a new radio channel and the communication path path control in the exchange. acts as a call control processor for release control of a channel, the control unit of the call processing processor, the radio channel switching control of the mobile station to move the radio control area, call processing for accommodating a radio control area in the visited It comprises means for accepting a radio channel switching request from a processor and requesting a call processing processor of another exchange accommodating a destination radio control area to establish a new radio channel via a common signal line trunk. Mobile communications switch. By being installed on a switch with multiple processors,
Each of the processors accommodates a corresponding radio control area and operates as a call processing processor that performs radio channel switching control when a mobile device located in the radio control area moves to another radio control area.
Even if the mobile processor moves to the radio control area accommodated by another call processor, the call processor that accepts the first call or incoming call will be able to establish a new radio channel and control the communication path in the switch. is operated as a call control processor for release control of a channel, the radio channel switching control of the mobile station to move the radio control area receives the radio channel switching request from the call processor to accommodate the wireless control area in the visited, A program for causing a call processing processor of another exchange accommodating a destination radio control area to operate as a processor for requesting establishment of a new radio channel via a common signal line trunk.

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