JP2002374557A - Base station system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a base station system that can enhance services to end users and improve maintenance by a network manager. SOLUTION: In the base station system comprising a network supervisory device for supervising a network, a plurality of base stations for communication with mobile units in its own control area, and a base station controller for controlling a plurality of the base stations, the base station controller is provided with a 2nd information collection start instruction means that instructs a plurality of the base stations to start collection of maintenance and operation information when receiving an instruction of starting collection of the maintenance and operation information. Each base station is provided with an information collection start means that starts collection of the maintenance and operation information with respect to a mobile unit when receiving instruction of start of collection of the information from the base station controller and a particular mobile unit is in its own control area and starts collection of the information with respect to the mobile unit when the base station has already received the information collection start and the particular mobile unit is in its own control area.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] The present invention relates to cdmaOne /
The present invention relates to a base station system such as cdma200, and particularly to maintenance of a mobile station (MS).

[0002]

2. Description of the Related Art In recent years, cdm, a new wireless transmission system, has been developed.
Portable telephone systems employing the aOne system and the cdma2000 system have been increasing in Japan and overseas. With the increase in the number of subscribers of the mobile phone system, maintenance and operation of the MS is regarded as important, and the maintenance and operation function of the MS has been required to be improved for network network administrators and end users. With traditional maintenance functions,
Since the maintenance function is not adapted to handoff control during a call, which is a feature of the CDMA system, or to movement of an MS to a subordinate base station (BTS) during a call, a maintenance message is not provided during handoff when the MS moves between BTSs. In some cases, the transmission / reception of data was interrupted and the maintenance function did not end normally.

FIG. 22 is a configuration diagram of a conventional portable telephone system. The NMC 2 is for monitoring the network of the mobile phone system, and for example, collects and updates maintenance operation information of the MS 10. The maintenance and operation information is M
Information (statistical information, etc.) relating to communication quality in S10 and MS1
0 to monitor or manage the status, or MS1
BSC such as programs / parameters controlling the operation of
6-information about all maintenance operations between the MS 10.
Information (such as statistical information) on the communication quality of the MS and the MS 10
The information for monitoring the state of the call includes the number of calls / the number of calls / the number of calls / location registration / the number of emergency calls / the number of handoffs /
There are talk time / number of frame errors / number of channels used / number of transmitted frames / number of received frames. The program / parameter for controlling the operation of the MS 10 includes a program for controlling the communication of the MS 10 and parameter values such as a message response waiting timer value on a protocol and a message retransmission counter. The information for managing the state of the MS 10 includes information in the MS 10 for managing the operation state of the MS 10. The operating state of the MS 10 includes information on control software in the MS 10 in addition to protocol states such as a no-communication state / connection processing state / communication processing / disconnection processing state.

[0004] The MSC 4 performs communication between a public network such as PSTN / ISDN and the BSC 6. BSC6 is BTS
8 # i (i = 1 to n) and voice and data communication with the MSC 4 and, in accordance with the instruction of the NMC 2, the corresponding M
The maintenance and operation information of the MS 10 is collected and updated in the BTS 8 #i where the S 10 is located. BTS8 # i (i = 1 to n)
Performs voice and data communication with the BSC 4 and the MS 10 and collects maintenance operation information on the MS 10 and updates the maintenance operation information to the MS 10 according to the instruction of the BSC 4. The MS 10 has a BTS 8 located in the control area.
#I and voice and data communication with the
Collect information and update maintenance and operation information.

FIG. 23 is a diagram showing an image of quality statistical information collection. FIG. 24 is a sequence chart of quality statistical information collection. Based on a complaint from the user or the like, a network administrator instructs collection of quality statistical maintenance information of the MS 10 owned by the user from a console or the like (not shown) connected to the NMC 2. The NMC 2 issues a quality statistics start request to the BSC 6 in response to an instruction from the network administrator. It is assumed that MS 10 is in the control area of BTS 8 # 1 during a call. When the BSC 6 receives the quality statistics start request from the NMC 2, the MS 10 makes a quality statistics start request to the BTS 8 # 1 because the MS 10 is in the control area of the BTS 8 # 1. BTS8 # 1 returns a quality statistics start response to BSC6.

[0006] Upon receiving the quality statistics start response from the BTS 8 # 1, the BSC 6 returns a quality statistics start response to the NMC2. The BTS 8 # 1 counts up the statistical information of the MS 10 and notifies the BSC 6 of the count. BSC6 is BTS8
The statistical information is received from # 1, and the statistical information is transferred to the NMC 2 according to a request of the network administrator or periodically. N
When receiving the statistical information of the MS 10 from the BSC 6, the MC 2 displays the statistical information on a console (not shown). M
It is assumed that S10 has moved to the control area of BTS 8 # 2 during a call. When the handoff is performed from BTS8 # 1 to BTS8 # 2, since BTS8 # 2 has not received the quality statistic start information from BSC 6, the quality statistic of MS10 is not collected and the quality statistic of MS10 is interrupted by the handoff. .

FIG. 25 is a diagram showing MS information collection.
FIG. 26 is a sequence chart of MS information collection.
The NMC 2 instructs the BSC 6 to collect MS information. B
SC6 is the BTS 8 # in the control area where the MS 10 is located.
1 is instructed to collect MS information. The BTS 8 # 1 issues an MS information collection request to the MS 10 using the page channel. When receiving the MS information collection request, the MS 10 returns an information collection response to the BTS 8 # 1 using the traffic channel. The BTS 8 # 1 sends an information collection response to the MS
When the information is received from the server 10, an information collection response is returned to the BSC 6.
When the BSC 6 receives the information collection response from the BTS 8 # 1, the BSC 6 returns an information collection response to the NMC 2. BTS8 # 1 → B
When the control area is changed to TS8 # 2, BTS8 # 2
Since the information collection request is not made from the BSC 6, the information collection from the MS 10 is interrupted in the middle without the information collection being completed normally.

FIG. 27 is a diagram showing a download image. The NMC 2 receives the instruction of the network administrator and sends a download start request to the BSC 6. BSC
6 makes a download start request to the BTS 8 # 1, which is the control area of the M10. The BTS 8 # 1 issues a download start request to the MS 10 using the paging channel. When receiving the download start request, the MS 10 returns a download start response to the BTS 8 # 1 using the access channel. When receiving the download start response from the MS 10, the BTS 8 # 1 returns a download start response to the BSC 6.

[0009] The BSC 6 sends a download start response to the BT.
Upon receipt from S8 # 1, a download start response is returned to NMC2. The NMC 2 notifies the BSC 6 of the download data transfer. Upon receiving the notification of the download data transfer from the NMC 2, the BSC 6 notifies the BTS 8 # 1 of the download data transfer. BTS8 # 1 is B
When receiving the notification of the download data transfer from the SC 6, the MS 10 is notified of the download data transfer using the paging channel. When receiving the notification of the download data transfer, the MS 10 returns a response of the download data transfer to the BTS 8 # 1 using the access channel.

When the BTS 8 # 1 receives a response to the download data transfer from the MS 10, the BTS 8 # 1 returns a response to the download data transfer to the BSC 6. When the BSC 6 receives the response of the download data transfer from the BTS 8 # 1, the BSC 6
A response of download data transfer is returned to MC2. BTS
If the control area of the MS 10 is changed from 8 # 1 to BTS 8 # 2, the BTS 6 # 2 is not notified of the download data transfer from the BSC 6, so that the data transfer to the MS 10 is interrupted on the way without completing the data transfer normally. .

[0011]

However, conventionally, when controlling the operation and maintenance information with the MS, a specific BT is required.
S is used to control the maintenance and operation information, but when the MS sequentially moves to an adjacent BTS, there is a problem that the maintenance and operation work cannot be automatically continued. When the MS moves to the adjacent BTS, the network administrator needs to instruct the control of the maintenance operation information again in order to continue the maintenance operation, and the maintenance operability of the network administrator is not good.

(1) Prompt information provision for end-user complaints or the like, and the network administrator cannot always grasp maintenance operation information immediately. Specifically, there are the following problems.

(I) The number of outgoing calls / incoming calls / emergency calls / location registration / talk time cannot be collected accurately, so that the use situation of the end user cannot be grasped accurately.

(Ii) Since the number of transmission / reception frames and the number of occurrences of frame errors cannot be accurately collected, the communication quality of the MS cannot be determined.

(Iii) Since the number of handoffs cannot be accurately collected, it is not possible to grasp the use status of an area frequently used by the MS.

(Iv) Since the number of used channels cannot be collected accurately, the used capacity of the communication channel cannot be grasped.

(V) Information collection such as parameters from the MS is interrupted on the way.

(Vi) Transfer of a program or the like to the MS is interrupted.

As described above, when the MS moves to the control area of the adjacent BTS and cannot control the maintenance and operation information, it is impossible to promptly provide information on the end user's serviceability and claims. This leads to lower customer satisfaction with the user. In addition, when the network administrator performs maintenance during normal operation, it can be said that maintainability is poor if necessary information cannot be quickly collected.

(2) Maintenance operability is not good for the network administrator.

(I) When the MS moves to the control area of the adjacent BTS, the start / stop of the control of the maintenance operation information must be instructed every time. You need to take action.

(Ii) Since it is not possible to instruct the start / stop of the control of the maintenance operation information unless the BTS under which the MS to be controlled is located is specified,
It is necessary to monitor or confirm which BTS is located under which BTS.

As described above, the operability of maintenance is very poor for the network administrator, and the work load is large.

(3) The network load is large.

Since the BTS is instructed each time, when the number of BTSs accommodated by the BSC increases, the network load between the BSC and the BTS increases. As a result, by controlling the maintenance operation information, the load between the BTS and the BSC increases, which affects the transmission / reception of the user.

(4) Inability to cope with network expansion.

The BTS accommodated in the BSC can be added during operation, but the control stops when the corresponding MS moves to the area of the added BTS. As a result, when controlling the maintenance operation information on the MS, the network administrator needs to perform maintenance work in consideration of network expansion, and the maintenance work is troublesome.

(5) It cannot cope with a link disconnection (including a line failure) between the BTS and the BSC.

When the link between the BTS and the BSC is disconnected, the control of the maintenance operation information is stopped.
Even if the link between BSCs recovers normally, it cannot be controlled continuously. Thereby, when the network administrator controls the maintenance operation information on the MS, the BTS-B
It is necessary to perform a maintenance operation conscious of a failure such as a link disconnection between SCs, and the maintenance operation becomes troublesome.

(6) There are a plurality of communication paths during handoff, but if the operation information cannot be controlled for each communication path, it is not possible to accurately grasp the communication state of the network.

During handoff, there are a plurality of communication paths.
The maintenance operation control information is notified from a plurality of BTSs and the BS
C does not select it, recognizes it as the same MS information, and malfunctions. For example, if the statistical information is all B
Information from the TS is overlapped and added. As a result, the network administrator cannot accurately grasp the maintenance work of the corresponding MS, which hinders the serviceability to the end user and the maintenance of the network administrator also shown in (1).

The present invention has been made in view of the above, and an object of the present invention is to provide a portable telephone system capable of improving serviceability to end users and maintainability of a network administrator.

[0033]

FIG. 1 is a diagram showing the principle of the present invention. As shown in FIG. 1, the base station system includes NMC
12, BSC 14, a plurality of base stations 16 # i (i = 1 to
n). The NMC 12 has a first information collection start instructing unit 18 and a first receiving unit 19. BSC1
4 is a second information collection start instructing means 20 and a second receiving means 2
1 and a first transmission unit 22. BTS16 # i (i
= 1 to n) is the information collection start means 23 # i (i = 1 to
n) and a second transmission unit 24 # i (i = 1 to n).

The first information collection start instructing means 18 includes a BSC
14 is instructed to start collecting maintenance and operation information on the specific MS 11. When the second information collection start means 20 in the BSC 14 receives the maintenance start information collection start instruction from the first information collection start instruction means 18, the plurality of BTSs 16
#I (i = 1 to n) is instructed to start maintenance operation information collection. When the information collection start means 23 # i (i = 1 to n) in the BTS 16 # i (i = 1 to n) receives the maintenance operation information collection start instruction from the BSC 14, the MS 11 is located in its own control area. It is determined whether or not. If it is located in its own control area, it starts collecting maintenance operation information on the MS 11. For example, assuming that the MS 11 is located in its own control area, the second transmitting unit 24 # 1 transmits the maintenance operation information to the BSC 14. Second receiving means 21
Receives the maintenance operation information transmitted from the BTS 16 # 1. The first transmission unit 22 transmits the maintenance operation information to the NMC 12. The first receiving unit 19 receives the maintenance operation information from the BSC 14.

It is assumed that the MS 11 has moved to a place where it can communicate with a BTS in another control area, for example, the BTS 16 # 2. Since the MS 11 is located in the own control area, the information collection start unit 23 # 2 determines whether or not a maintenance operation information collection start instruction has already been received. Information collection start means 23 #
2 indicates that when MS 11 is located in its own control area, MS 1
The collection of the maintenance and operation information on No. 1 is started. The second transmission unit 24 # 2 transmits the maintenance operation information to the BSC 14.
The second receiving unit 21 receives the maintenance operation information transmitted from the BTS 16 # 1. The first transmitting means 22 is a NMC1
2 transmits the maintenance operation information. The first receiving means 19
The maintenance operation information is received from SC14. As described above, even if the MS 11 moves to the control area of another BTS, the information collection start unit 23 # i (i = 1 to n) has already received the maintenance operation information collection start instruction. , Maintenance and operation information can be collected.

[0036]

DESCRIPTION OF THE PREFERRED EMBODIMENTS First Embodiment FIG. 2 is a block diagram of a portable telephone system according to a first embodiment of the present invention. The same components as those in FIG. Signs are attached. BSC30,
It has the following functions related to maintenance operation information control.

(1) The following functions are provided in order to continuously collect the quality statistical information of the MS when the handoff is performed due to the movement of the MS 10 during the call without moving. When an instruction of a quality statistics start request for a specific MS is received from the NMC 2, a quality statistics start response is sent to the NMC 2 and all BTSs 32 # i (i = 1 to 1) to be accommodated.
A quality statistics start request is made to n). BTS32
When the quality statistic information is received from #i, the quality statistic information is transmitted to the NMC 2. If a handoff occurs due to the movement of a talking MS collecting quality statistical information, handoff control is performed so that talking can be continued. When the handoff control ends, the mobile station receives quality statistical information from the BTS at the destination.

(2) The following functions are provided so that MS information collection can be performed continuously without interruption when the MS 10 that is collecting MS information moves under the BTS in another control area. Upon receiving the MS information collection request of the specific MS from the NMC 2, all the BTSs 32 # i (i = 1 to
Request MS information collection for n). BTS32 #
When an MS information collection response is received from i, an MS information collection response is sent to NMC2. MS from BTS32 # i
Upon receiving the information, the mobile station transmits MS information to the NMC 2.
When the MS 10 moves under the BTS in another control area, the MS 10 receives MS information from the BTS of the movement destination.

(3) The following functions are provided so that, when the MS 10 being downloaded moves under the BTS in another control area, the download to the MS is continued without interruption. Upon receiving a download start request for a specific MS from NMC2, all BTSs accommodated
A download start is required for 32 # i (i = 1 to n). When receiving the download start response from the BTS 32 # i, the base station makes a download start response to the NMC 2.
When receiving the data transfer notification from the NMC 2, the data transfer notification is performed to the BTS 32 # i where the MS 10 is located. When receiving the data transfer response from the BTS 32 # i, it makes a data transfer response to the NMC2. When the MS 10 moves to a BTS in another control area and receives a data transfer notification from the NMC 2, it notifies the destination BTS of the data transfer. In addition, collection of maintenance operation information,
When communication is performed with the BTS 32 #i (i = 1 to n) for updating, resources are secured according to a predetermined protocol to establish a communication link.

The BTS 32 # i has the following functions related to maintenance operation information control.

(1) The following functions are provided for the collection of MS quality statistical information. Upon receiving an instruction of a quality statistics start request for a specific MS from the BSC 30, the BSC 30
Response to start quality statistics. When the quality statistics start request is received, it is determined whether the MS 10 instructed to collect is located in its own control area and is in a call. If so, start collecting quality statistical information for the MS 10. When communication with the MS is started according to the handoff control of the BSC 30, and when a quality statistics start request for the MS has been received, the collection of quality statistical information for the MS 10 starts. The start of quality statistics collection
The MS may be registered as a subordinate of the BTS. The collection of the collected quality statistical information is transmitted to the BSC 30.

(2) The following functions are provided for collecting MS information. Upon receiving the MS information collection start request from the BSC 30, the MS makes a MS information collection start request to the MS. When receiving the MS information collection start response from the MS 10, the BSC 30 sends an MS information collection start response. M
S10 moves under the BTS in its own control area, and the MS
When receiving a request to start collecting MS information on 10
An MS information collection start request is made. When receiving the MS information collection notification from the MS 10, the BSC 30 is notified of the MS information collection. When the MS information collection response is received from the BSC 30, the MS 10 makes an MS information collection response.

(3) Regarding download to MS,
It has the following functions. When receiving a download start request from the BSC 30, the MS 10 issues a download start request to the MS 10 when the MS 10 is located in its own control area. M
When a download start response is received from S10, BSC
A download start response is transmitted to 30. When the MS 10 moves under the BTS in its own control area and receives a download start request for the MS 10, for example,
A download start request is made using the page channel. When a data transfer notification is received from the BSC 30, M
A data transfer notification is performed in S10.

The MS 10 has the following functions related to maintenance operation information. Upon receiving the MS information collection start request, M
A response to start S information collection is made. When the MS information start collection response is made, an MS information collection notification is performed. When the MS information collection response is received, the next MS information collection notification is performed. When the control area is changed during MS information collection and an MS information collection start request is received, the next MS information collection notification is performed. When the MS information collection start request is received, a response to start MS information collection is made. When a download start request is received, a download start response is made. When the data transfer notification is received, the data is stored and a data transfer response is made. When the control area is changed during download and a download start start request is received, a download start response is made. When the data transfer notification is received, the data is stored in a position subsequent to the data transfer notification that has just sent the data transfer response, and the data transfer is responded. In addition, in MS information collection and download, transmission of a message such as an MS information start notification from the BTS 32 #i to the MS 10 is performed by cdmaOne / cd.
In the ma200 system, transmission is performed using a paging channel, and transmission of a message such as notification of MS information from the MS 10 to the BTS 32 # i is performed using an access channel.

FIG. 3 shows BSC 30 and BTS 3 in FIG.
FIG. 2 is a configuration diagram of 2 # i. As shown in FIG.
Are NMC control unit 40, maintenance operation information control unit 42, BT
S control unit 44, call control unit 46, route information database 4
7, handoff control unit 48, control station information database 4
9 and a maintenance operation information collecting unit 50. The NMC control unit 40 has the following functions. When a message such as a quality statistics start request transmitted from the NMC 2 is received, the message is output to the maintenance operation information control unit 42. Maintenance operation information control unit 42
When a message such as a response to start a quality statistic is received, NM
Notify C2.

The maintenance operation information control unit 42 controls the operation and maintenance information and has the following functions.
Quality statistics start request received from NMC control unit 40, MS
It instructs the BTS controller 44 to issue an information collection start request and a download start request to all BTSs 32 #i (i = 1 to n). The quality statistics information received from the BTS control unit 44 is output to the maintenance operation information collection unit 50. BTS control unit 4
4, MS information collection response received, MS information collection notification,
The download start response and the data transfer response are output to the NMC control unit 40. Upon receiving the MS information collection response and the data transfer notification from the NMC control unit 40, the BTS control unit 4 transmits the MS 10 to the BTS whose location is registered.
Instruct 4 When the call control unit 46 notifies the MS 10 that the location registration has been changed during the collection of the MS information,
It instructs the BTS control unit 44 to receive MS information from the BTS of the change destination. This is because the MS information collection is continued even when the control area of the MS 10 is changed during the MS information collection. When notified that the location registration has been changed during the download to the MS 10, the call control unit 46 notifies the BTS of the change destination of the data transfer. This is because the download is continued even when the control area of the MS 10 is changed during the download. The control station database 49 is updated in accordance with the notification from the call control unit 46.

The BTS control unit 44 has the following functions.
According to the instruction of the maintenance operation information control unit 42, all BTS3
2 # i (i = 1 to n) or a message is transmitted to a specific BTS 32 # i. The message received from the BTS 32 # i (i = 1 to n) is output to the maintenance operation information control unit 42. The call control unit 46 controls a call between the MS 10 and the MSC 4 and has the following functions. MSC4
When there is an incoming call to the MS 10, the MS 10 issues an incoming call request to the BTS 32 # i whose location is registered. M in a call
In step S10, the BTS 32 # i transmits voice data, data, and the like to the BTS 32 # i in which the location of the MS 10 is registered. When there is an incoming call from MS 10 from BTS 32 #i, an incoming call request is made to MSC 4. BTS32
#I: Voice data, data, etc. from MS 10 are sent to MSC
Send to 4. MS10 in the route information database 47
Register the location. When calling from MS10 and MS1
The MS 10 is registered in the route information database 47 when an incoming call arrives at 0. According to the instruction of the handoff control unit 48, the handoff control is performed. The maintenance operation information control unit 42 is notified of the completion of the handoff.

The handoff control section 48 has the following functions for handoff. It monitors whether a handoff has occurred during the call of the MS 10. When a handoff occurs,
Through the call control unit 46, handoff control is performed according to a predetermined sequence, and the handoff call is registered in the route information database 47. When the handoff is completed,
The handoff call is deleted and the normal call is registered in the route information database 47. The handoff control of the above-
This is a control for making a call without interruption even if the control area changes due to movement of the MS 10 during a call.
The same control as this control can be applied to the case of collecting and downloading MS information. When applied in the former case,
The MS 10 does not need to retransmit the MS information, and when applied to the latter case, the NMC 2 does not need to retransmit the download data.

FIG. 4 shows the route information database 4 in FIG.
7 is a configuration diagram of FIG. The route information database 47 is a database in which route information is registered by the call control unit 46 and the handoff control unit 48. The route information is BSC30
-Information for managing a communication path between the MSs 10, and information for recognizing a BTS that controls a normal call and a handoff call. A normal call refers to a BTS that has become a control station at the time of location registration between the BSC 30 and the MS 10. A handoff call refers to a BTS that controls handoff during a call. As shown in FIG. 4, the route information database 47
For each MS during a call, its MS number, the station number of a BTS serving as a normal call, and the station number of a BTS serving as a handoff call are stored. As described above, the route information database 47 stores the B information by the call control unit 46 and the handoff control unit 48.
When location registration is performed between the SC 30 and the MS 10, the MS 1
It is updated when a call is made from 0, when a call is received, or when a handoff occurs during a call.

FIG. 5 is a configuration diagram of the control station information database 49 in FIG. The control station information database 49
This is a database that stores control station information for continuously performing maintenance operation information control even when the control area of the MS 10 is changed, and records a control station and its adjacent stations. The control station refers to a BTS that has become a control station that controls maintenance operation information of the MS 10 at the time of location registration between the BSC and the BTS, or a BTS that controls a normal call during a call. The adjacent station refers to a BTS adjacent to the BTS that became the control station at the time of location registration between the BSC and the BTS, or a BTS that performs handoff control during a call. Control station information database 4
9 is performed by the maintenance and operation information control unit 42 when a location registration is performed between the BSC 30 and the MS 10, when a call is made and received from the MS 10, and when a handoff occurs during a call.
Be updated. The maintenance operation information collection unit 50 includes a call control unit 46
, And outputs the maintenance operation information to the maintenance operation information control unit 42 at regular intervals.

BTS 32 # i is connected to BSC control unit 60 #
i, a maintenance operation information control unit 62 # i, a call control unit 64 # i,
It has a maintenance operation information collection unit 66 # i and a wireless control unit 68 # i. The BSC control unit 60 # i has the following functions.
When a message is received from the maintenance operation information control unit 62 # i, the message is transmitted to the BSC 30. When receiving the message from the BTS control unit 44, the maintenance / operation information control unit 62 # i
Output to

The maintenance operation information control section 62 # i has the following functions. When the message is received from the BSC control unit 60 # i, the message is analyzed. (i) When the request is a quality statistics start request, if the MS 10 is in a call and has been registered in the BSC 30 as its own control area (hereinafter simply referred to as “position registration”), the quality statistics are stored in the maintenance / operation information collection unit 66 # i. Instruct information collection. (ii) When the request is the MS information collection start request, if the location of the MS 10 is registered, the MS 10 instructs the maintenance operation information collection unit 66 # i to collect the MS information.
(iii) When the request is a download start request, if the location of the MS 10 is registered, an instruction to start the download is issued.
(iv) When the response is an MS information collection response and a data transfer notification, the response is output to the maintenance operation information collection unit 66 # i. When a message (quality statistical information, MS information collection notification, data transfer notification) is received from the maintenance operation information collection unit 66 # i, the message is output to the BSC control unit 60 # i. When the MS 10 during the call moves into its own control area and is notified of the handoff control from the call control unit 64 # i, the MS 10 receives the quality statistics start request and the maintenance operation information collection unit 66 # i sends the quality Instruct statistics start. This is because the quality statistics are continuously collected even after the location registration of the MS 10 during a call is changed. When the MS 10 moves into its own control area and is notified that the location has been registered by the call control unit 64 # i, the MS information collection start request /
When receiving the download start request, the maintenance operation information collection unit 66 # i is instructed to start quality statistics / MS information collection / download start. This is for continuously collecting and downloading MS information even when the location registration of the MS 10 is changed.

The call control section 64 # i has the following functions.
Call control and handoff control are performed between the MS 10 and the BSC 30. The information related to the quality statistical information is output to the maintenance operation information collection unit 66 # i. When the handoff is started, it notifies the maintenance operation information control unit 62 # i. When the location is registered, it notifies the maintenance operation information control unit 62 # i. The maintenance operation information collection unit 66 # i has the following functions. According to the quality statistics information start instruction from the maintenance operation information control unit 62 # i, the quality statistics information is collected through the call control unit 64 # i. The quality statistical information is output to the maintenance operation information control unit 62 # i. According to the MS information collection start request / download start request from the maintenance operation information control unit 62 # i, the MS 10 issues an MS information collection start request / download start request to the MS 10 through the wireless control unit 68 # i. When a message (MS information collection start response, data transfer response) is received from the wireless control unit 68 # i, the message is output to the maintenance operation information control unit 62 # i. The radio control unit 68 # i communicates with the MS 10 according to the instructions of the call control unit 64 # i and the maintenance operation information collection unit 66 # i. Hereinafter, an operation related to the maintenance operation information control of the mobile phone system of FIG. 2 will be described.

(1) Collection of Quality Statistical Information FIG. 6 is a sequence chart for collecting quality statistical information. The network administrator instructs the collection of the quality statistical information of the MS 10 owned by the user based on the user's complaint or the like. The NMC 2 issues a quality statistic start request to the BSC 30 according to the instruction of the network administrator. BSC30
, Upon receiving the quality statistics start request from NMC2, returns a quality statistics start response to NMC2. The BSC 30 issues a quality statistic start request to all the BTSs 32 #i (i = 1 to n) to be accommodated.

BTS32 # i (i = 1 to n) is
Upon receiving a quality statistics start request from the BSC 30, the BSC 30 sends a quality statistics start response. Here, it is assumed that the MS 10 is located in the control area of the BTS 32 # 1 and is in a call with the MS or the like. The BTS 30 sets the control station to BT
In S32 # 1, the adjacent station is registered in the control station information database 49 as BTS32 # 2. BTS32 # i (i =
1 to n) are the MSs 10 specified by the quality statistics start request.
Is determined in the own control area. BTS3
2 # i collects quality statistical information when the MS 10 during a call is in its own control area. On the other hand, when the MS 10 is not in a call or is not in its own control area, it does not collect BTS quality statistical information.

In this case, the MS 10 during the call is the BTS 32
Since the user is in the control area # 1, quality statistical information of the MS 10 is collected. On the other hand, the BTS 32 # i (i = 2 to n) in which the MS 10 is not located in its own control area does not collect the quality statistical information of the MS 10. The BSC 30 has a BTS 32 #
1 to receive and store the quality statistical information. Then, the accumulated quality statistical information is transmitted to the NMC 2 at regular intervals.
In this manner, BTS 32 # 1 communicates with MS 10 during a call.
While the is located in its own control area, it collects quality statistical information and transmits it to the BSC 30. BSC 30 is the BTS
The quality statistical information received from 32 # 1 is transmitted to NMC2 at intervals.

FIG. 7 is a diagram showing an example of the handoff. FIG. 8 is a handoff control sequence chart illustrating an example of handoff implemented in a CDMA system. FIG. 9 is a diagram illustrating updating of the maintenance control station information at the time of handoff. As shown in FIG. 7, when the MS 10 is an automobile mobile phone, the BTS 32
It is assumed that the user has moved to the control area # 2. BTS32 #
1 measures the electric field strength of the radio wave transmitted from the MS 10
(Pilot Strength Measurement). When the MS 10 moves and the radio wave from the MS 10 weakens and the electric field strength becomes lower than a certain level, the BSC 30
An access parameter read request for handoff control is made from TS32 # 1. BTS32 # 1 is BSC30
Receives an access parameter read request from the
To the access parameter read response. BTS32 # 2
Obtains resources (Handoff Resource Request, Handoff Resource Response, Handoff Resource Response
e), Beginning of traffic capture (Begin Forward Traffic Cm
d)). The BTSs 32 # 1 and 32 # 2 execute handoff (handoff execution instruction, handoff completion notification (Handoff Performed)) according to a predetermined sequence.
When the BSC 30 receives the handoff completion notification from the BTSs 32 # 1 and 32 # 2, as shown in FIG.
# 1 is a normal call, BTS32 # 2 is a handoff call,
The route information database 47 is updated. The control station information database 49 indicates that the control station is BTS32 # 1 and the adjacent station is BTS32 # 1.
It remains in TS32 # 2. And MS10 is BT
Make a call using both S32 # 1 and S32 # 2 (2W
AY).

The MS 10 moves further, and the BTS 32 # 1
Assuming that the mobile terminal has moved out of the control area of the BTS 32 # 2 and has completely moved into the control area of the BTS 32 # 2, a handoff is executed in accordance with a predetermined sequence (the electric field strength of a radio wave is measured (Pilot
Strength Measurement), BTS 32 # 1 handoff drop recognition, handoff execution instruction, handoff completion notification, Handoff Performed). Release resources of BTS32 # 1 (Release Order Request, Release Order Resp
onse, Release Resource response). When the handoff is completed, as shown in FIG.
Assuming that 32 # 2 is a normal call, the route information database 47 is updated, the control station is BTS32 # 2, and the adjacent station is BTS32
The control station information database 49 is updated as # 1, 32 # 3.

BTS 32 # 2 determines whether or not a quality statistics start request has been instructed to MS 10 when the talking MS 10 moves to its own control area. When the collection of the quality statistic information is instructed, the quality statistic information of the MS 10 is collected. Here, since a quality statistic request to MS 10 is instructed by BSC 32 to BTS 32 # 2,
The BTS 32 # 2 collects quality statistical information on the MS 10. Since the control station has been changed to the BTS 32 # 2, the BSC 30 receives and accumulates the quality statistical information from the BTS 32 # 2. Then, the accumulated quality statistical information is transmitted to the NMC 2 at regular intervals. BTS32 # 2 is MS
As long as 10 is in its own control area, it collects quality statistical information and sends it to BSC 30. BSC30 is B
The quality statistical information received from TS32 # 2 is transmitted to NMC2 at regular intervals. Further, the control area of the MS 10 is BT
Even when the process is changed to S32 # 3, the quality statistical information of the MS 10 is collected from the BTS 32 # 3 in the same manner as described above. As described above, even when the control area of the MS 10 is changed due to the handoff, the collection of the quality statistical information of the MS 10 can be continuously performed.

When ending the collection of the quality statistic information, the NMC 2 issues a quality statistic end request to the BSC 30. Upon receiving the quality statistics end request, the BSC 30
A quality statistic end request is made to TS32 # i (i = 1 to n). BTS30-BTS32 # i (i = 1 to n)
Release resources for quality statistics collection between
The TS 32 # i (i = 1 to n) ends the quality statistic collection.

(2) MS Information Collection FIG. 10 is a sequence chart of MS information collection.
The network administrator instructs the MS 10 to collect MS information. The NMC 2 requests the BSC 30 to start collecting MS information according to the instruction of the network administrator. BSC
30 requests the MS 10 to start collecting MS information for all the BTSs 32 #i (i = 1 to n) to be accommodated. MS1
0 is located in the control area of BTS 32 # 1. The BTS 32 # i (i = 1 to n) determines whether the MS 10 specified by the MS information collection start request is located in its own control area. The BTS 32 # i uses the paging channel when the MS 10 is in its own control area,
A request for starting MS information collection is made to the MS 10. on the other hand,
When the MS 10 is not in its own control area, it does not make a request to start collecting MS information.

Here, since MS 10 is in the control area of BTS 32 # 1, BTS 32 # 1
It makes an S information start request. On the other hand, the BTS 32 #i (i = 2 to n) in which the MS 10 is not located in its own control area
No MS information collection start request is made to 0. MS10 is M
Upon receiving the S information start request, the base station sends an MS information collection start response to the BTS 32 # 1 using the access channel.
When receiving the MS information collection start response from the MS 10, the BTS 32 # 1 sends an MS information start response to the BSC 30.
Upon receiving the MS information collection start response, the BSC 30
A response to start MS information collection is sent to MC2. The MS 10 notifies the BTS 32 # 1 of the MS information collection using the access channel. BTS32 # 1 is MS from MS10
Upon receiving the information collection notification, the BSC 30 is notified of MS information collection. When the BSC 30 receives the MS information collection notification,
The NMC 2 is notified of MS information collection. Upon receiving the MS information collection notification, the NMC 2 sends an MS information collection response to the BSC 30. When receiving the MS information collection response from the NMC 2, the BSC 30 sends an MS information collection response to the BTS 32 # 1. Upon receiving the MS information collection response from the BSC 30, the BTS 32 # 1 uses the paging channel to
Respond to MS information collection at 0.

When the MS 10 receives the MS information collection response, it uses the access channel to send the next MS information collection notification to the BTS 32 # 1. As described above, M
The S information collection notification is notified to the NMC 2 through the BSCC 30. The NMC 2 sends the MS information collection response to the BSC 3
0 → change to MS10 through BTS32 # 1. In this manner, while the MS 10 is located in its own control area, the BTS 32 # 1 collects the MS information of the
It notifies NMC2 through SC30. MS10 is
It is assumed that the mobile terminal has moved to the control area of the BTS 32 # 2 during the transfer of the MS information. The BSC 30 determines that the MS 10 has a BTS 32 #
Until the location is registered as a subordinate of BTS32 # 1
, And receives MS information from the BTS 32 # 1. It is assumed that the MS 10 has moved out of the control area of the BTS 32 # 1 and has completely moved into the control area of the BTS 32 # 2. Since the BTS 32 # 2 has received the MS information start request from the BSC 30, the BTS 32 # 2 acquires a resource for communicating the MS information with the MS 10, and requests the MS 10 to start the MS information collection. Using the access channel, the MS 10 notifies the BTS 32 # 2 of the next MS information collection notification that has received the MS information collection response. BTS32
# 2 notifies the NMC 2 of the collection of the MS information through the BSC 30. The BSC 30 uses the BTS 32 # 2 as a control station and collects MS information from the BTS 32 # 2. In this way, even if the control area is moved during MS information collection,
The MS information can be continuously collected.

(3) Download FIG. 11 is a download sequence chart.
The network administrator instructs downloading to the MS 10. The NMC 2 issues a download start request to the BSC 30 according to the instruction of the network administrator. BSC
30 makes a download start request to the MS 10 to all the BTSs 32 # i (i = 1 to n) to be accommodated. MS
It is assumed that 10 is registered as a subordinate of BTS32 # 1. The BTS 32 # i (i = 1 to n) determines whether the MS 10 specified by the download collection start request is located in its own control area. BTS32 # i is MS
When the mobile station 10 is in its own control area, the mobile station 10 makes a download start request to the mobile station 10 using the paging channel. On the other hand, when the MS 10 is not in its own control area, it does not make a download start request.

Since the location of MS 10 is registered under BTS 32 # 1, BTS 32 # 1 makes a download start request to MS 10 using the paging channel. On the other hand, the BTS 32 #i (i = 2 to n) in which the MS 10 is not located in its own control area does not make a download start request to the MS 10. When receiving the download start request, the MS 10 sends a download start response to the BSC 30 through the BTS 32 # 1 using the access channel. Upon receiving the download start response, the BSC 30 sends a download start response to the NMC 2.

The NMC 2 divides the data to be downloaded into a plurality of pieces, and transfers the divided data to the BSC 30 (data transfer notification). When the BSC 30 receives the data transfer notification, the BSC 30 in which the location of the MS 10 is registered is
The TS 32 # 1 is set as a control station, and a data transfer notification is made to the BTS 32 # 1. When receiving the data transfer notification, the BTS 32 # 1 notifies the MS 10 of the data transfer using the paging channel. When receiving the data transfer notification from the BSC 32 # 1, the MS 10 sends a data transfer response to the BTS 32 # 1 using the access channel. BTS
32 # 1 receives the data transfer response, and
To notify the NMC 2 of the data transfer response. NM
When C2 confirms the reception of the data transfer response, BSC3
0 → Make the next data transfer notification through BTS32 # 1
Change to S10. Thus, the data transfer notification and the data transfer response are performed between the NMC 2 and the MS 10 through the BSC 30 and the BTS 32 # 1. It is assumed that MS 10 has moved to the control area of BTS 32 # 2 during downloading. The BSC 30 notifies the BTS 32 # 1 of the data transfer until the location of the MS 10 is registered.

It is assumed that MS 10 has moved out of the control area of BTS 32 # 1 and has completely moved into the control area of BTS 32 # 2. The BCS 30 is such that the MS 10
When the location is registered under the control of 2 # 2, the BTS 32 # 2 is set as a control station, and a data transfer notification is made to the BTS 32 # 2. Since the BTS 32 # 2 has received the download start request from the BSC 30, the BTS 32 # 2 acquires a resource for communicating the MS information with the MS 10, and then makes a download start request to continue the download. BTS3
2 # 2 receives the data transfer notification from the BSC 30,
Notify the MS 10 of data transfer. MS10 is BTS32
Upon receiving the data transfer notification from # 2, BTS 32 # 2 →
A data transfer response is sent to the NMC 2 through the BSC 30. In this way, even if the MS 10 moves in the control area during the download, the download can be continued.

According to the first embodiment described above, the following effects can be obtained.

(1) Improving Service to End User Information can be promptly provided in response to a request to the user, and the network administrator can always grasp the maintenance operation information.
In addition, interruption of control during collection and download of MS information can be prevented, leading to improvement in serviceability.

(I) The number of outgoing / incoming calls / emergency calls / location registrations and call duration can be accurately collected, so that the usage status of the end user can be known.

(Ii) Since the number of transmission / reception frames and the number of occurrences of frame errors can be accurately collected, the communication quality of the MS can be determined.

(Iii) Since the number of handoffs can be accurately collected, the usage status of an area frequently used by the MS can be known.

(Iv) Since the number of used channels can be accurately collected, the used capacity of the communication channel can be known.

(V) Information collection such as parameters from the MS can be continued without interruption.

(Vi) Data transfer to the MS can be continued without interruption.

As described above, prompt information can be provided in response to an end user's request, and serviceability is improved. Also,
The information necessary for the network administrator to perform the maintenance operation information control unit 42 can be accurately obtained, so that the maintainability (maintenance) is improved and the time for claim / problem solving can be shortened.
Further, since the use area and the use channel capacity can be accurately known, the network can be constructed accurately.

(2) The operability of maintenance is improved for the network administrator.

(I) It is not necessary to instruct the start / stop of the control of the maintenance operation information every time the MS transmits / receives a call, and the network administrator performs the operation of the control of the maintenance operation information after starting the network. It may be performed twice.

(Ii) Even if the MS to be controlled is not communicating,
Since the start / stop of the control can be instructed at any time, the network manager does not need to monitor / confirm whether the MS is busy.

As described above, the operability of maintenance is facilitated for the network administrator, and the work can be reduced.

Second Embodiment FIG. 12 is a block diagram of a mobile phone system according to a second embodiment of the present invention. Components that are substantially the same as those shown in FIG. ing. In the first embodiment, a quality statistics start request message or the like is transmitted to all BTSs accommodated by the BSC, and the BTS transmits a response message to the BSC. However, there is a possibility that network traffic may occur more than necessary. There is. In the second embodiment, in order to suppress the generation of network traffic, M
BTS whose S10 is registered and its adjacent BTS
A request to start a quality statistic is made only for.

The BSC 80 differs from the BSC 30 in the following points. Upon receiving a quality statistics start request, a MS information collection start request, and a download start request for the MS 10 from the NMC 2, the BTS 32 # i in which the location of the MS 10 is registered is received.
And a quality statistics start request, MS information collection start request, and download start request to the BTS adjacent to the BTS 32 # i. When the MS 10 moves to a control area of another BTS, the MS 10 issues a quality statistics start request to a BTS adjacent to the movement destination BTS. Hereinafter, an operation related to the maintenance operation information control of the mobile phone system of FIG. 10 will be described.

(1) Collection of Quality Statistical Information FIG. 13 is a sequence chart for collecting quality statistical information. The NMC 2 requests the BSC 80 to start quality statistics on the MS 10. Here, BT is performed while MS 10 is talking.
It is assumed that the location is registered in the control area of S32 # 1 and registered in the BSC 80. Upon receiving the quality statistics start request from the NMC 2, the BSC 80 sends a quality statistics start response to the NM
Return to C2. The BSC 80 is a BTS 32 # 1 in which the location of the MS 10 is registered and a BTS adjacent to the BTS 32 # 1.
A quality statistics start request is made to 32 # 2. The process until the MS 10 moves to the control area of the BTS 32 # 2 during a call is the same as in the first embodiment. BSC80 is B
When the location of the movement destination BTS 32 # 2 is registered as a normal call in S10, a quality statistics start request is made to the BTS 32 # 3 adjacent to the BTS 32 # 2. In addition, BSC 80
When S10 is registered as a subordinate of the BTS 32 # 3, a quality statistics start request is made to the BTS 32 # 4 adjacent to the BTS 32 # 3. As described above, whenever the MS 10 moves, the MS 10 issues a quality statistics start request to the adjacent BTS every time the control area is changed.
Continue to collect quality statistic information.

(2) MS Information Collection The NMC 2 requests the BSC 80 to start MS information collection of the MS 10. It is assumed that the MS 10 is located in the control area of the BTS 32 # 1 and has been registered in the BSC 80. B
When the SC 80 receives the MS information collection start request from the NMC 2, the SC 80 receives the BTS 32 # 1 in which the location of the MS 10 is registered.
And an MS information collection start request to the adjacent BTS 32 # 2. The processing until the MS 10 moves to the control area of the BTS 32 # 2 is the same as in the first embodiment.
When the BSC 80 registers the location of the MS 10 as being under the control of the BTS 32 # 2, the BSC 32 # 3 adjacent to the BTS 32 # 2
Request to start collecting MS information. Thus, M
Every time the control area is changed due to the movement of S10, the MS information collection request of the MS 10 is continuously performed by making an MS information start request to the adjacent BTS.

(3) Download The NMC 2 requests the BSC 80 to start downloading. It is assumed that the MS 10 is located in the control area of the BTS 32 # 1 and has been registered in the BSC 80. BSC8
0, upon receiving a download start request from the NMC 2, sends a download start request to the BTS 32 # 1 whose location is registered in the MS 10 and its adjacent BTS 32 # 2. The processing until the MS 10 moves to the control area of the BTS 32 # 2 is the same as in the first embodiment. BS
When the location of the MS 10 is registered under the control of the BTS 32 # 2, the C80 issues a disconnection load start request to the BTS 32 # 3 adjacent to the BTS 32 # 2. As described above, whenever the control area is changed by the movement of the MS 10, the download of the MS 10 is continuously performed by making a download start request to the adjacent BTS.

According to the second embodiment described above, the first
The following effects can be obtained in addition to the effects of the embodiment.

[0087] It is possible to reduce the load on the network. The BTS that the corresponding MS is talking on and the BT
BSC-BT to instruct only the BTS adjacent to S
The network load between S is reduced. Thus, the maintenance operation does not affect the transmission / reception of the user.

Third Embodiment FIG. 14 is a block diagram of a mobile phone system according to a third embodiment of the present invention. Components that are substantially the same as the components in FIG. ing. In the second embodiment, even when the MS 10 moves away from the control area, the BTS having the control area does not release the resource of the maintenance operation information control. However, when the MS 10 leaves the control area, the resource is unnecessary. Resource may be wasted. In the third embodiment, when the MS 10 leaves the control area while controlling the maintenance operation information, the resources related to the maintenance operation are released.

The BSC 90 is the BSC 80 of the second embodiment.
And the following points. When the control area of the MS 10 is changed during quality statistics collection, MS information collection, and download, a quality statistics end request, MS information collection end request, and download end request are sent to the source BTS 92 # i. I do. Upon receiving the quality statistics end response, the MS information collection end response, and the download end response from the source BTS 92 # i, the resources related to the BSC 92 # i are released. The resource refers to a resource related to communication for performing maintenance operation control with the BSC 92 # i. BTS92
#I differs from BTS32 # i of the first embodiment in the following points. Upon receiving a quality statistics end request, an MS information collection end request, and a download end request from the BSC 90, the BS
It sends a quality statistics end response, an MS information collection end response, and a download end response to C90. The resources are released after the quality statistics end response, the MS information collection end response, and the download end response. Hereinafter, an operation related to maintenance operation information control of the mobile phone system in FIG. 14 will be described.

(1) Collection of Quality Statistical Information FIG. 15 is a sequence chart for collecting quality statistical information. The NMC 2 requests the BSC 90 to start quality statistics on the MS 10. Here, when MS 10 is in a call
It is assumed that it is located in the control area of TS92 # 1 and registered in the BSC90. The process from when the BSC 90 receives the quality statistics start request from the NMC 2 to when the control area of the MS 10 is changed to the BTS 92 # 2 is the same as in the second embodiment. The BSC 90 connects the MS 10 to the BTS 9
When the location is registered as a subordinate of 2 # 2, a quality statistics end request is made to BTS 92 # 1. BTS92 # 1 is
Upon receiving the quality statistics end request from BSC 90, BSC 9
0, a quality statistic end response is sent, and BSC 9
Release resources reserved for quality statistics collection between zero. When the BSC 90 receives the quality statistics end response,
Release resources related to quality statistics collection with the BSC 92 # i.

(2) MS Information Collection The NMC 2 requests the BSC 90 to start MS information collection of the MS 10. It is assumed that the MS 10 is located in the control area of the BTS 92 # 1 and has been registered in the BSC 80. M
The processing until the control area of S10 is changed to BTS82 # 2 is the same as that of the second embodiment. BSC90 is M
When the location registration is performed under the control of the BTS 92 # 2, a request for terminating the collection of the MS information is made to the BTS 92 # 1. Upon receiving the MS information collection end request from the BSC 90, the BTS 92 # 1 sends an MS information collection end response to the BSC 90, and the resources secured for the MS information collection between the MS 10 and the BSC 90, the MS 10
The communication band with the BSC 90 is released. Upon receiving the MS information end response, the BSC 90 releases resources related to MS information collection with the BSC 92 # i.

(3) Download The NMC 2 issues a download start request to the BSC 90. It is assumed that the MS 10 is located in the control area of the BTS 92 # 1 and has been registered in the BSC 90. MS10
The processing until the control area is changed to BTS92 # 2 is the same as in the second embodiment. BSC90 is MS10
Is registered as a subordinate of BTS82 # 2,
A download end request is made to 92 # 1. BT
Upon receiving the download end request from the BSC 90, S92 # 1 sends a download end response to the BSC 90 and releases resources reserved for download between the MS 10 and the BSC 90. BSC9
0, upon receiving the download end response, BSC92 #
Release resources related to download with i. In the case of the first embodiment, when the control area of the MS is changed, the resources between the BTS and the BSC before the change are released.

According to the third embodiment described above, the fourth embodiment
The same effects as in the embodiment can be obtained, and when the control area of the MS is changed, the BTS-BS before the change is changed.
Since the resources between C and C are released, the network load between BSC and BTS is reduced. Thus, the maintenance operation does not affect the transmission / reception of the user.

Fourth Embodiment FIG. 16 is a block diagram of a portable telephone system according to a fourth embodiment of the present invention. Components that are substantially the same as the components in FIG. ing. In the fourth embodiment, it is possible to add a BTS while the system is in operation.
MS10 adds BT during maintenance operation information control on
When moving into the control area of S, the maintenance operation information control is continuously performed. The maintenance operation information control relating to the BTS addition can be applied to both the first and second embodiments, but the fourth embodiment shows a case where the BTS is applied to the first embodiment. The BSC 100 has the functions of the BSC 30,
It has the following functions related to BTS expansion. When the BTS is added, the NM is set based on the instruction of the network administrator.
When a BTS addition request is made from C2, the setting relating to the BTS addition is performed. The setting related to the extension BTS
Setting processing for enabling communication with the MS 10 through the Internet. After making settings related to BTS expansion, N
A BTS addition response is sent to MC2. When a quality statistics start request is received from NMC2,
Make a quality statistics start request. When the second embodiment is applied, when the control area of the additional BTS is adjacent to the control area of the MS 10 under the maintenance operation information control, or when the MS 10 under the maintenance operation information control moves to the control area of the additional BTS. It is when I did. Hereinafter, an operation related to maintenance operation information control of the mobile phone system of FIG. 16 will be described.

(1) Addition of BTS An example of adding a BTS 32 # 2 will be described. BTS3
When 2 # 2 is added, the NMC 2 makes a BTS addition request to the BSC 100 based on the instruction of the network administrator. When the BSC 90 receives the BTS addition request from the NMC 2, the BSC 90 performs settings related to the BTS addition. Thereby, the MS 10 transmits the BSC 100 through the BTS 32 # 2.
Can communicate with.

(2) Collection of Quality Statistical Information FIG. 17 is a sequence chart of collecting quality statistical information. The NMC 2 requests the BSC 100 to start a quality statistic concerning the MS 10. Here, MS 10 is located in the control area of BTS 32 # 1 during a call, and BSC 100
It is assumed that the location is registered. BSC100 is NMC
2. When a quality statistics start request is received from
A quality statistics start request is made to S. Then (MS1
0 quality statistics information is being collected), and BTS 32 # 2 is assumed to be added. Since the BSC 100 has received the quality statistics start request from the NMC 2, the BSC 100 issues a quality statistics start request to the additional BTS 32 # 2. Expansion BTS32 # 2
Upon receiving the quality statistics start request, the BSC 100
Gives a start response for quality statistics. Thereby, BTS32 # 2
Can collect quality statistical information of the MS 10. Therefore, even when the MS 10 moves to the control area of the BTS 32 # 2 during a call, the MS 10
32 # 2 collects the quality statistics of MS 10 and
Send to 100.

(3) MS Information Collection In the case of MS information collection as well, when the BSC 100 receives an MS information collection start request from the NMC 2, the BSC 100
32. Request MS information collection to 32 # 2. As a result, even when the BTS 32 # 2 is added during the MS information collection of the MS 10 and the MS 10 moves to the control area of the added BTS 32 # 2, the BTS 32 # 2 continuously collects the MS information of the MS 10. be able to.

(4) Download Also in the case of download, the BSC 100, when receiving a download start request from the NMC 2,
A download start request is made to 32 # 2. Further, during the download to the MS 10, the MS 10
When the BSC 100 is located in the TS 32 # 2 and registers the location of the MS 10 under the control of the BTS 32 # 2, the BSC 100 transfers data to the additional BTS 32 # 2. As a result, even when the BTS 32 # 2 is added during the download to the MS 10 and the MS 10 moves to the control area of the BTS 32 # 2 after the addition, the BSC 100 continues to operate the MS 1
Even if 0 moves to the control area of the additional BTS 32 # 2, the download can be continued to the MS 10.

According to the fourth embodiment described above, the same effects as those of the first embodiment can be obtained, and the following effects can be obtained. Can support network expansion. When a BTS accommodated in the BSC is added during operation, even if the corresponding MS moves to the area of the added BTS, it is possible to continuously control the maintenance operation information.
As a result, the network administrator can control the maintenance operation information on the corresponding MS without being aware of the increase or decrease of the BTS.

Fifth Embodiment FIG. 18 is a block diagram of a mobile phone system according to a fifth embodiment of the present invention. Components that are substantially the same as the components in FIG. 2 are given the same reference numerals. ing. In the fifth embodiment, while the BSC controls the operation and maintenance information of the MS through the BTS, if the communication link of the BTC-BSC is disconnected, the control of the operation and maintenance information is temporarily suspended.
After the communication link between the BTS and the BSC is restored, the maintenance operation information control is restarted. The BSC 100 has, in addition to the function of the BSC 30, the following functions related to the maintenance operation information control after the recovery of the communication link between the BTS and the BSC. BSC
100 is a BTS 102 # for maintenance operation information control.
Monitor the state of the communication link set with i. When the communication link is recovered after being disconnected, the BTS 112 # i issues a quality statistics start request, an MS information collection start request, and a download start request to the BTS 112 # i.

[0101] The BTS 112 # i is the BT of the first embodiment.
It has the following function in addition to the function of S32 # i. BS
When the quality statistics start request (re-quality statistics start request), the MS information start request (re-MS information start request), and the download start request (re-download start request) are received again from C110, the quality statistics start response is sent to BSC 110. , MS
Send an information start response and download start response. BSC
When receiving the re-quality statistics start request from the mobile station 110, if the MS 10 that is currently talking is located in its own control area, the MS 10
10 to the BSC 110 for quality statistics
Resume collecting quality statistics. When the MS 10 in a call is located in its own control area, the MS information collection notification received from the MS 10 is changed to the BSC 110 and the MS information collection is resumed while the communication link is disconnected. B
When a data transfer notification is received from BSC 110 after receiving a re-download start request from SC 110, M
The data transfer is notified to S10, and the download is restarted. Hereinafter, an operation of the mobile phone system of FIG. 18 relating to maintenance operation information control will be described.

(1) Collection of Quality Statistical Information FIG. 19 is a sequence chart of collecting quality statistical information. The NMC 2 requests the BSC 110 to start quality statistics on the MS 10. Here, MS 10 is located in the control area of BTS 112 # 1 during a call, and
It is assumed that the location is registered at 0. BSC110 is NMC
BTS 112 after receiving the quality statistics start request from
The process until # 1 transmits the quality statistical information on the MS 10 to the BSC 110 is the same as in the second embodiment. Here, it is assumed that the communication link between BSC 110 and BTS 112 # 1 has been disconnected. Thereby, BSC110 and BSC
Communication concerning quality statistical information between the TSs 112 # 1 is interrupted. Thereafter, it is assumed that communication between the BSC 110 and the BTS 112 # 1 has been restored. The BSC 110 is the BTS 112 # 1
Is again requested to start quality statistics. BTS112
When # 1 receives the quality statistic start request from the BSC 110, # 1 responds to the BSC 110 with a quality statistic start response and restarts the collection of the quality statistic information on the MS 10. Then, the quality statistical information is transmitted to the BSC 110.
Thus, even if the communication link between the BSC 110 and the BTS 112 # 1 is disconnected, the collection of the quality statistical information is restarted after the link is restored.

(2) MS Information Collection The NMC 2 requests the BSC 110 to start MS information collection of the MS 10. It is assumed that MS 10 is located in the control area of BTS 112 # 1 and has been registered in BSC 110. The processing from when the BSC 110 receives the MS information collection start request from the NMC 2 to when the BTS 112 # 1 transmits the MS information of the MS 10 to the BSC 110 is the same as in the first embodiment. Here, BSC110 and BTS112 #
It is assumed that the communication link with the communication link No. 1 is disconnected. As a result, communication of MS information between the BSC 110 and the BTS 112 # 1 is interrupted. Then, BSC110 and BTS112 #
Assume that communication between the two has been restored. The MS 10 notifies the MS information collection after receiving the MS information collection response.
While the link between C110 and BTS 112 # 1 is disconnected, no MS information collection response is received, and the next MS information collection notification cannot be made. The BSC 110 requests the BTS 112 # 1 to start re-MS information collection. BTS112
When # 1 receives the MS information collection start request from BSC 110, # 1 makes a response to start MS information statistics to BSC 110. The BTS 112 # 1 transmits the M
The transmission of the S information is restarted.

(3) Download The NMC 2 requests the BSC 110 to start downloading. It is assumed that MS 10 is located in the control area of BTS 112 # 1 and has been registered in BSC 110. BSC
After the BSC 110 receives the download start request from the NMC 2, the BSC 110
Processing until the data transfer notification is made to 0 is the same as in the second embodiment. Here, BSC110-BTS112 # 1
It is assumed that the communication link between them is disconnected. After that, BSC1
It is assumed that communication between the communication terminal 10 and the BTS 112 # 1 has been restored. While the communication link is disconnected, the BSC 110
Since no data transfer response is sent to MC2, NM
The data transfer notification from C2 remains stopped. BS
C110 makes a re-download start request to BTS 112 # 1. The BTS 112 # 1 is connected to the BSC 110
When a download start request is received, a download start response is sent to BSC 110. BSC110
Restarts the data transfer notification to the BST 112 # 1.

According to the fifth embodiment described above, the first
The following effects can be obtained in addition to the effects of the embodiment. The network administrator does not need to monitor the link status between the BTS and the BSC. When the link between the BTS and the BSC is restored, the BSC automatically instructs the control of the maintenance and operation information again, so that the maintenance and operation information can be controlled continuously even after the link is restored. This allows the network administrator to
-The corresponding MS without being aware of the link state between the BSCs
The control unit of the maintenance operation information related to can be performed.

Sixth Embodiment FIG. 20 is a block diagram of a mobile phone system according to a sixth embodiment of the present invention. Components that are substantially the same as the components in FIG. 2 are given the same reference numerals. ing. When the MS 10 is located at a position where the control areas of the plurality of BTSs overlap, a plurality of communication paths are set between the plurality of BTSs and the MS 10, and quality statistical information is transmitted to the BSC for each communication path. In the sixth embodiment, when a plurality of communication paths are set, a normal call / handoff call is recognized for each communication path, and quality statistical information is transmitted to the NMC 2.

The BSC 120 has the following functions related to the collection of quality statistical information when the MS 10 is located in a plurality of control areas. When the MS 10 during a call is located in a place where the control areas of a plurality of BTSs overlap during the collection of the quality statistical information on the MS 10, the handoff control causes
When a plurality of communication paths are set between S10 and the plurality of BTSs and quality statistics information is transmitted from the plurality of BTSs,
Quality statistics are collected for each call path by distinguishing between normal calls and handoff calls. The information indicating whether the call is a normal call or a hand F call is added to each communication path, and the quality statistical information is transmitted to the NMC 2. One piece of quality statistical information such as the number of outgoing calls / the number of incoming calls of the MS 10 that may be counted repeatedly is selected. Hereinafter, an operation related to the maintenance operation information control of the mobile phone system of FIG. 20 will be described.

FIG. 21 is a sequence chart for collecting quality statistical information. NMC2 sends MS1 to BSC120.
Make a quality statistics start request for 0. Assuming that MS 10 is located in the control area of BTS 32 # 1 during a call, BTS 32 # 1 is stored in routing information database 47 as a normal call of MS 10, and BTS 3
2 # 1, the BTS 32 # 2 is registered in the control station information database 122 as an adjacent station. The processing from when the BSC 120 receives the quality statistics start request to when the MS 10 moves to the control area of the BTS 32 # 2 is as described in the first embodiment. BTS 32 # 2 sets a communication path with MS 10 according to the handoff control from BSC 120. At this time, since the BTS 32 # 2 has received the quality statistics start request, the BTS 32 # 2 transmits the quality statistics information on the MS 10 to the BSC 120. On the other hand, BTS32 # 1
Also transmits the quality statistical information to the BSC 120.

The BSC 120 transmits the BTSs 32 # 1 and 32 #
When the quality statistical information is received from the NMC 2, the quality statistical information is transmitted to the NMC 2 by distinguishing whether the communication path relating to each quality statistical information is a normal call or a handoff call. Here, since BTS 32 # 1 is a normal call and BTS 32 # 2 is a handoff call, the quality statistical information from BTS 32 # 1 is for a normal call, and the quality statistical information from BTS 32 # 2 is for a handoff call. The fact is added to the quality statistical information and transmitted to the NMC2. Thereafter, the MS 10 moves away from the control area of the BTS 32 # 1 and
Suppose you have completely entered the control area. BSC 120
The control station is set to BTS32 # 2, and the quality statistical information transmitted from BTS32 # 2 is transmitted to NMC2.

According to the sixth embodiment described above, the first
The same effects as in the embodiment can be obtained, and the following effects can be further obtained. Since the quality state can be ascertained for each call path, a more accurate network call state can be ascertained. During the handoff, information such as the number of frame errors is notified from a plurality of BTSs in addition to the normal call / handoff call, so that network maintenance can be performed easily and promptly in response to a request for information provision from an end user. Can respond.

The present invention includes the following supplementary notes.

(Supplementary Note 1) A network monitoring device for monitoring a network, a plurality of base stations for communicating with a mobile station located in its own control area, and a base station having a base station control device for controlling the plurality of base stations In the station system, the network monitoring device includes: first information collection start instruction means for instructing the base station control device to start collecting maintenance and operation information on a specific mobile device; First receiving means for receiving maintenance operation information related to the mobile station, wherein the base station controller receives the maintenance operation information collection instruction, and receives the maintenance operation information from the plurality of base stations. Second information collection start instruction means for instructing start of collection, second reception means for receiving maintenance operation information on the specific mobile station from the base station, First transmission means for transmitting a report to the network monitoring device, wherein the base station, when receiving a maintenance operation information collection start instruction from the base station control device, causes the specific mobile device to enter its own control area. If it is located, start collecting maintenance operation information on the mobile device,
If the maintenance operation information collection start instruction has already been received and the specific mobile device is located in its own control area, information collection start means for starting collection of maintenance operation information on the mobile device, A base station system, comprising: a second transmitting unit for transmitting to the base station controller.

(Supplementary Note 2) When the second information collection start instruction means receives the maintenance operation information collection start instruction, the second information collection start instruction means transmits the specified mobile station to the base station whose location is registered and its adjacent base station. Instruct the maintenance operation information collection start,
When the specific mobile station has already received the maintenance operation information collection start instruction and is located in the control area of the base station adjacent to the base station whose location is registered, maintenance is performed on the base station adjacent to the base station. 2. The base station system according to claim 1, wherein the base station system issues an operation information collection start instruction.

(Supplementary Note 3) When the base station in which the location of the specific mobile station is registered has been changed, the base station control device instructs the base station before the change to end maintenance and operation information collection. The base station further includes an end instruction unit,
Resource release means for releasing resources related to the maintenance and operation information collection secured between the specific mobile station and the base station controller when receiving the instruction to end the collection of the maintenance and operation information statistics is further provided. 3. The base station system according to claim 2, wherein

(Supplementary Note 4) The second information collection start instructing means, when the maintenance operation information collection start instruction is given when the base station is added, gives the maintenance operation information collection start instruction to the base station. 2. The base station system according to claim 1, wherein

(Supplementary Note 5) The second information collection start instructing means, when the base station has been added, has been instructed to start the maintenance and operation information collection, and the base station in which the location of the added base station is registered is 3. The base station system according to claim 2, wherein when it becomes an adjacent base station, the maintenance operation information collection start instruction is issued to the additional base station.

(Supplementary Note 6) The second information collection instructing means, when the communication link is restored after the communication link relating to the communication of the operation and maintenance information with the base station is restored, informs the base station of the information. 4. The base station system according to claim 3, wherein a collection start instruction is issued.

(Supplementary Note 7) The base station control apparatus is configured to enable the plurality of base stations to communicate with the plurality of base stations when the talking mobile station moves to an area where the plurality of base stations can talk to each other. Handoff control means for performing handoff control of a plurality of base stations, further comprising: when the operation and maintenance information is quality statistical information on a mobile station during a call, the information collection start means performs communication with the mobile station during a call by handoff control. When communication becomes possible, the collection of the quality statistical information is started, and the first transmitting means receives the quality statistical information from a plurality of base stations by moving the talking mobile station. In this case, the base station that has transmitted each quality statistic information adds information indicating whether it is a normal call whose location is registered under the mobile device or a handoff call under handoff control, and Wah 2. The base station system according to claim 1, wherein the base station system transmits the signal to a base station control device.

(Supplementary Note 8) A network monitoring device for monitoring a network, a plurality of base stations for communicating with a mobile station located in its own control area, and a base station having a base station control device for controlling the plurality of base stations In the station system, the network monitoring device includes: first download start instruction means for instructing the base station control device to start downloading to a specific mobile device; and reception response of download data from the base station control device. Receiving the download start instruction, the first transmission means for transmitting the next download data to the base station controller, the base station controller downloads the plurality of base stations when receiving the download start instruction. Download start instructing means for instructing start, and upon receiving download data from the network monitoring device, Second transmitting means for transmitting the download data to the base station at which the specific mobile device is registered, and receiving a download data reception response from the base station; And a first response unit for receiving a response from the base station, when the base station receives a download start instruction from the base station control device, a download start request unit for making a download start request to the specific mobile station. A third transmitting means for transmitting download data to the mobile device when receiving download data from the base station control device, and receiving a download data reception response from the specific mobile device; And second response means for responding to the reception of download data to the base station. Temu.

(Supplementary Note 9) In a base station control device for controlling a plurality of base stations communicating with a mobile station, an information collection start instruction for instructing the plurality of base stations to start maintenance and operation information collection. Means, second receiving means for receiving maintenance operation information on the specific mobile device from the base station,
A base station control device, comprising:

(Supplementary Note 10) When a base station that performs communication with a mobile station under the control of the base station control device receives a maintenance operation information collection start instruction from the base station control device, a specific movement is performed. If the mobile device is located in its own control area, it starts collecting maintenance operation information on the mobile device, has already received the maintenance operation information collection start instruction, and the specific mobile device has been located in its own control area. In this case, the base station includes: an information collection start unit that starts collecting maintenance operation information on the mobile device; and a second transmission unit that transmits the maintenance operation information to the base station control device.

[0122]

According to the present invention described above, the service to the end user can be improved, and the operability of the maintenance operation information control for the network administrator can be improved.

[Brief description of the drawings]

FIG. 1 is a principle diagram of the present invention.

FIG. 2 is a configuration diagram of a mobile phone system according to the first embodiment of the present invention.

FIG. 3 is a configuration diagram of a BSC and a BTS in FIG. 2;

FIG. 4 is a configuration diagram of a route information database in FIG. 3;

FIG. 5 is a configuration diagram of a control station information database in FIG. 3;

FIG. 6 is a sequence chart of quality statistics information collection.

FIG. 7 is a diagram showing a handoff.

FIG. 8 is a sequence chart of a handoff.

FIG. 9 is a diagram illustrating updating of maintenance control station information at the time of handoff.

FIG. 10 is a sequence chart of MS information collection.

FIG. 11 is a sequence chart of a download.

FIG. 12 is a configuration diagram of a mobile phone system according to a second embodiment of the present invention.

FIG. 13 is a sequence chart of quality statistical information collection.

FIG. 14 is a configuration diagram of a mobile phone system according to a third embodiment of the present invention.

FIG. 15 is a sequence chart of quality statistical information collection.

FIG. 16 is a configuration diagram of a mobile phone system according to a fourth embodiment of the present invention.

FIG. 17 is a sequence chart of quality statistics information collection.

FIG. 18 is a configuration diagram of a mobile phone system according to a fifth embodiment of the present invention.

FIG. 19 is a sequence chart for collecting quality statistical information.

FIG. 20 is a configuration diagram of a mobile phone system according to a sixth embodiment of the present invention.

FIG. 21 is a sequence chart of quality statistical information collection.

FIG. 22 is a configuration diagram of a conventional mobile phone system.

FIG. 23 is a diagram showing an image of quality statistical information collection.

FIG. 24 is a sequence chart for collecting quality statistical information.

FIG. 25 is a diagram showing an image of MS information collection.

FIG. 26 is a sequence chart of MS information collection.

FIG. 27 is a diagram showing a download image.

[Explanation of symbols]

 11 MS 12 NMC 14 BSC 16 # i (i = 1 to n) BTS 18 First information collection start unit 19 First reception unit 20 Second information start unit 22 First transmission unit 23 # i (i = 1 to n) Information collection start means 24 # i (i = 1 to n) Second transmission means

 ────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor ▲ Yabu ▼ Hideto 2-53, Shiromi, Chuo-ku, Osaka City, Osaka Prefecture Inside Fujitsu Kansai Chubu Nettech Co., Ltd. (72) Inventor Akemi Yamamoto Osaka, Osaka 2-53, Shiromi, Chuo-ku, Fujitsu Kansai-Chubu Net-Tech Co., Ltd. ) Inventor Kunio Kawase 2-53, Shiromi, Chuo-ku, Osaka City, Osaka Prefecture F-term in Fujitsu Kansai Chubu Nettech Co., Ltd. 5K019 AA02 BA26 BA40 BB11 CA05 DA03 DC06 5K067 AA21 BB03 BB04 DD44 DD45 DD57 EE02 EE10 EE16 HH07 HH17 HH23 JJ11 JJ37 LL01

Claims (5)

[Claims] 1. A base station system comprising: a network monitoring device for monitoring a network; a plurality of base stations for communicating with a mobile station located in a self-control area; and a base station control device for controlling the plurality of base stations. In the above, the network monitoring device may include: a first information collection start instruction unit configured to instruct the base station control device to start collecting maintenance and operation information on a specific mobile device; and the specific movement from the base station control device. First receiving means for receiving maintenance operation information related to the base station, and the base station control device, when receiving an instruction to start collection of the maintenance operation information, starts maintenance operation information collection for the plurality of base stations. A second information collection start instructing means for instructing the operation information; a second receiving means for receiving maintenance operation information on the specific mobile device from the base station; A first transmitting unit for transmitting to the network monitoring device, wherein the base station receives the maintenance operation information collection start instruction from the base station control device, and the specific mobile device is located in its own control area. If the specific mobile device is located in its own control area, it starts the maintenance operation information collection for the mobile device. A base station system comprising: an information collection start unit that starts collecting information; and a second transmission unit that transmits the maintenance operation information to the base station control device. 2. The second information collection start instructing means, upon receiving an instruction to start collection of the maintenance operation information, sends the specific mobile station to the base station whose location is registered and the adjacent base station. When the maintenance operation information collection start instruction is issued, the maintenance operation information collection start instruction is already received, and when the specific mobile station is located in the control area of the base station adjacent to the base station whose position is registered, 2. The base station system according to claim 1, wherein a maintenance operation information collection start instruction is issued to a base station adjacent to the base station. 3. The collection end instruction for instructing the base station before the change to end maintenance and operation information collection when the base station in which the location of the specific mobile station is registered is changed. Means for collecting the operation and maintenance information secured between the specific mobile station and the base station controller when the base station receives the instruction to end the operation and operation information statistics collection. 3. The base station system according to claim 2, further comprising resource release means for releasing resources. 4. The second information collection start instructing means, when a base station is added and an instruction to start the maintenance and operation information collection has been given, to the base station, a maintenance and operation information collection start instruction to the base station. The base station system according to claim 1, wherein: 5. The base station control device according to claim 1, wherein the mobile station during a call moves to an area where a plurality of base stations can talk with each other.
The mobile station further comprises handoff control means for performing handoff control on the plurality of base stations so that the plurality of base stations can communicate with the mobile station, wherein the maintenance operation information is quality statistical information on a mobile station during a call. The information collection start means starts the collection of the quality statistical information when communication with the mobile device during a call is enabled by the handoff control, and the first transmission means determines that the mobile device during the call moves. When the second receiving means receives the quality statistical information from a plurality of base stations, the base station which has transmitted the respective quality statistical information performs the normal call and the handoff call under the handoff control whose location is registered under the mobile station. 2. The base station system according to claim 1, wherein information indicating which one is added is transmitted to the network control device.