JP2006054626A - Mobile communication system, radio base station controller, calling state management and transmission control method to be used for the same, and its program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a radio base station controller for realizing comfortable communication control to a user who performs the mobile communication and the efficient use of limited communication resources. <P>SOLUTION: A radio base station controller adds the two types of soft queues of user data transmission queues 234-1 to 234-n and a control signal dedicated transmission queue 235 corresponding to the respective mobile terminals before performing data queuing processing to a packet transmission hard queue 237, and separates user data from a control signal, and preferentially queues the control signal to the packet transmission hard queue 237. The queue control part 236 of the radio base station controller monitors the internal state of the control signal dedicated transmission queue 235, and when the control signal queued to the control signal dedicated transmission queue 235 is communication disconnection processing, clears any unnecessary data staying in the user data transmission queues 234-1 to 234-n which are used by the user who has requested the communication disconnection processing. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a mobile communication system, a radio base station controller, a call state management transmission control method used therefor, and a program thereof, and more particularly to a transmission queue control method in the radio base station controller.

  Conventionally, in the radio base station controller, as shown in FIG. 10, user data (U-DATA) and control signal (C-DATA) stored in the transmission data buffer 11 are transferred to n packets corresponding to each user. A queuing process is performed for each of the transmission soft queues 13-1 to 13-n without distinguishing between user data and control signals.

  Therefore, when an arbitrary user performs a communication disconnection process, a control signal for the communication disconnection process is queued next to the user data accumulated in the packet transmission software queues 13-1 to 13-n corresponding to the user. Therefore, the control signal for the communication disconnection process is queued in the packet transmission hard queue 14 because all the user data accumulated in the packet transmission soft queues 13-1 to 13-n are all transmitted. After being queued to.

  In this state, unnecessary data is queued in the packet transmission hard queue 14 in the corresponding packet transmission soft queues 13-1 to 13-n after the user issues a communication disconnection request until the communication disconnection processing is completed. As a result, the communication resources of the limited radio base station controller are wasted.

  A conventional method for using a transmission queue will be described with reference to FIG. In FIG. 11, user data [IP (Internet Protocol) packets] output by n mobile terminal users # 1 to #n to which identification information is assigned are IP1 to IPn.

  Further, in FIG. 11, it is assumed that a large amount of user data has been downloaded in turn using the mobile terminal 15 that can be connected to the Internet in the service area of the same radio base station (not shown). The mobile terminal user #n, which outputs user data IPn, sends out a disconnection request during communication and attempts to disconnect the communication. This series of operations will be described in order.

  The operation of d1 in FIG. 11 sends data to the packet transmission hard queue 14 in the radio base station in order to send user data IP1 from the Internet network side to the mobile terminal user # 1.

  The operation of d2 in FIG. 11 indicates that the mobile terminal user # 1 has received the user data IP1 sent from the radio base station. FIG. 11 shows a state where the operations of d1 and d2 are repeated for n persons in order. For the operations d3 and d4 and the operations d5 and d6, the same processing as the operations d1 and d2 is performed.

  Here, when the mobile terminal user #n sends a communication disconnection request, the control signal for the communication disconnection processing that has come to the radio base station control device is transmitted after the operations of d1, d3, and d5 in FIG. It will be queued to the hard queue 14. Furthermore, unless all the user data that has reached the packet transmission soft queue 13 of the radio base station controller before the control signal is queued in the packet transmission hard queue 14, the control signal is transmitted to the packet transmission hardware queue. Not queued in queue 14 In this case, when viewed from the mobile terminal user #n, unnecessary user data is sent even after the disconnection request is sent, and a long waiting time for the disconnection response is required.

  As a method for solving this problem, a method in which a user data queue and a control signal dedicated queue are arranged and a control signal is preferentially transmitted has been proposed (for example, see Patent Document 1).

JP 2000-349829 A

  In the above-described conventional transmission queue usage method, as shown in FIG. 10, user data IP1 to IPn are sent in accordance with the order of mobile terminals that have made communication requests to the radio base station control device. The control signal of the mobile terminal that made the call or the control signal of the mobile terminal that cuts off the communication is not queued in the packet transmission hard queue 14 until all the data processed in advance is sent. Can not do it.

  For this reason, the more mobile terminals that have been processed in advance, the longer communication processing requests that are delayed and the more likely that timeout will occur. When a timeout occurs in the new connection process, the mobile terminal user is notified of some error message, and the mobile terminal user is forced to re-request the communication connection process.

  In the above-mentioned patent document 1, the waiting time of the control signal can be reduced as compared with the case where the user data and the control signal are queued together, but other control signals are used for the communication disconnection process and the new connection process. If it is sent before the control signal, there is a high possibility that a timeout will occur as described above.

  Therefore, an object of the present invention is to solve the above-described problems and realize a mobile communication system capable of realizing comfortable communication control for a user who performs mobile communication and efficient use of limited communication resources, An object of the present invention is to provide a radio base station controller, a call state management transmission control method used therefor, and a program thereof.

A mobile communication system according to the present invention includes a radio base station that transmits various signals to a mobile terminal through a packet transmission hard queue, and a radio base station controller that controls the radio base station. Because
A user data transmission queue provided corresponding to each of the mobile terminals and queuing user data to the mobile terminals;
A control signal dedicated transmission queue that is provided in common to each of the mobile terminals and queues a control signal to the mobile terminals;
The radio base station control device comprising: queue control means for alternately queuing user data queued in the user data transmission queue and control signals queued in the control signal dedicated transmission queue to the packet transmission hard queue. In preparation for
The queue control means monitors the control signal queued in the control signal dedicated transmission queue and identifies the content of the control signal.

A radio base station control apparatus according to the present invention is a radio base station control apparatus that controls a radio base station that transmits various signals to a mobile terminal through a packet transmission hard queue,
A user data transmission queue provided corresponding to each of the mobile terminals and queuing user data to the mobile terminals;
A control signal dedicated transmission queue that is provided in common to each of the mobile terminals and queues a control signal to the mobile terminals;
Queue control means for alternately queuing the user data queued in the user data transmission queue and the control signal queued in the control signal dedicated transmission queue to the packet transmission hard queue;
The queue control means monitors the control signal queued in the control signal dedicated transmission queue and identifies the content of the control signal.

A call state management transmission control method according to the present invention includes a radio base station that transmits various signals to a mobile terminal through a packet transmission hard queue, and a radio base station controller that controls the radio base station. A call state management transmission control method used in a communication system,
A user data transmission queue provided corresponding to each of the mobile terminals and queuing user data to the mobile terminals and a control signal provided to each of the mobile terminals and queued for a control signal to the mobile terminals A control signal dedicated transmission queue to be placed in the radio base station control device,
Queuing the user data queued in the user data transmission queue and the control signal queued in the control signal dedicated transmission queue alternately to the packet transmission hard queue on the radio base station controller side; Monitoring the control signals queued in the control signal dedicated transmission queue and identifying the contents of the control signals.

  A program for a call state management transmission control method according to the present invention includes a radio base station that transmits various signals to a mobile terminal through a packet transmission hard queue, and a radio base station controller that controls the radio base station. A program of a call state management transmission control method used in a mobile communication system, comprising: a user data transmission queue provided in a computer corresponding to each of the mobile terminals and queuing user data to the mobile terminals; The packet transmission hardware alternately transmits the queued user data and the control signal provided in common to each of the mobile terminals and queued in a control signal dedicated transmission queue for queuing a control signal to the mobile terminal. A process for queuing to a queue, and a control signal queued in the control signal dedicated transmission queue. And to execute a process of identifying the contents of the control signal in view.

  In other words, the mobile communication system according to the present invention has a user data transmission queue and a control signal dedicated transmission queue corresponding to each mobile terminal before performing data queuing processing on the packet transmission hard queue existing in the radio base station controller. By adding two types of soft queues, the user data and the control signal are separated, and the control signal can be preferentially queued in the packet transmission hard queue.

  In the mobile communication system of the present invention, the queue control unit monitors the internal state of the control signal dedicated transmission queue, and if the control signal queued in the control signal dedicated transmission queue is a communication disconnection process, the communication disconnection is performed. By clearing unnecessary data accumulated in the user data transmission queue used by the user who requested the processing, unnecessary data is not queued in the packet transmission hard queue, so it is unnecessary on the wireless transmission path. Communication resources can be used efficiently without transmitting data.

  More specifically, in the mobile communication system of the present invention, the transmission data buffer is queued to n packet transmission soft queues corresponding to each user by the transmission handler, and the packet transmission soft queues # 1 to #n are queued. The processing for sequentially queuing data to the packet transmission hard queue has been changed.

  In the mobile communication system of the present invention, the conventional transmission handler is separated into a user data transmission handler and a control signal transmission handler, and there are two types of n user data transmission queues and control signal dedicated transmission queues corresponding to each. You are working to queue data in a soft queue.

  In other words, in the mobile communication system of the present invention, instead of the conventional packet transmission soft queue, n user data transmission queues that specially process user data corresponding to each user and control signals from each user are specialized. Two types of soft cues are provided: a control signal dedicated transmission queue to be processed.

  When queuing data from the transmission data buffer, the user data transmission handler cuts data to be queued in the user data transmission queue, and the control signal transmission handler stores data to be queued in the control signal dedicated transmission queue. Reaping.

  In the mobile communication system of the present invention, the queue information monitoring table always monitors the control signal dedicated transmission queue with priority, while sequentially transmitting packet data from the n user data transmission queues and the control signal dedicated transmission queue. The task of queuing one by one to the packet transmission hard queue is performed.

  The queue information monitoring table queues the communication disconnection processing signal in the control-dedicated transmission queue to the packet transmission hard queue when the communication disconnection processing signal enters the control signal-dedicated transmission queue, and at the same time, Starts the clear processing unit and clears (resets) unnecessary user data in the user data transmission queue that is subject to communication disconnection processing, thereby allocating resources in the user data transmission queue for the next user. .

  As a result, in the mobile communication system of the present invention, the data queuing process to the packet transmission hard queue is performed separately into two types of soft queues, the user data transmission queue and the control signal dedicated transmission queue, and the user data By monitoring the transmission queue and the control signal dedicated transmission queue with the queue control unit, when a signal for communication disconnection processing enters the control signal dedicated queue, the queue clear processing unit in the queue control unit is immediately activated. In addition, it becomes possible to clear unnecessary user data in the user data transmission queue to be subjected to communication disconnection processing.

  Therefore, in the mobile communication system of the present invention, it is possible to allocate resources of the user data transmission queue for a new user who communicates next time and to avoid queuing unnecessary data in the packet transmission hard queue. It becomes.

  With the configuration and operation described below, the present invention has an effect that comfortable communication control for a user who performs mobile communication and efficient use of limited communication resources can be realized. can get.

  Next, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a block diagram showing a configuration of a mobile communication system according to an embodiment of the present invention. FIG. 1 shows a mobile communication system using an ATM (Asynchronous Transfer Mode) exchange.

  In FIG. 1, the mobile communication system according to the embodiment of the present invention includes radio base stations 1-1 and 1-2, an ATM switch 2, and a gateway switch 3. The ATM switch 2 includes an ATM switch 21, a packet processing device 22, a radio base station control device 23, and a mobile terminal termination device 24. The gateway exchange 3 includes an ATM switch 31, a protocol conversion device 32, and a packet processing device 33.

  FIG. 2 is a block diagram showing a configuration example of the radio base station control device 23 of FIG. In FIG. 2, the radio base station controller 23 includes a transmission data buffer 231, a user data transmission handler 232, a control signal transmission handler 233, user data transmission queues 234-1 to 234-n, and a control signal dedicated transmission queue 235. A queue control unit 236, a packet transmission hard queue 237, and a recording medium 238 for storing a program executed by the queue control unit 236. Although not shown, the queue control unit 236 includes a CPU (Central Processing Unit) and a RAM (Random Access Memory), and the CPU executes the program of the recording medium 238 on the RAM thickly. Processing of a queue control unit 236 described later is realized.

  In the embodiment of the present invention, before performing the data queuing process on the packet transmission hard queue 237 existing in the radio base station controller 23, the user data transmission queue 234 corresponding to each mobile terminal (not shown). 2-1 to 234-n and two types of soft queues, namely the control signal dedicated transmission queue 235, are added to separate the user data (U-DATA) and the control signal (C-DATA), and the control signal (C- DATA) can be preferentially queued in the packet transmission hard queue 237.

  In the embodiment of the present invention, the newly added queue control unit 236 monitors the internal state of the control signal dedicated transmission queue 235, and the control signal (C-DATA) queued in the control signal dedicated transmission queue 235. Is a communication disconnection process, it is unnecessary in the packet transmission hard queue 237 by clearing unnecessary data accumulated in the user data transmission queues 234-1 to 234-n used by the user who requested the communication disconnection process. Since it becomes unnecessary to queue the data that has become, it is possible to efficiently use communication resources without transmitting unnecessary data on the wireless transmission path.

  The queue configuration of the radio base station controller shown in FIG. 2 is a configuration in which the embodiment of the present invention is applied to the transmission queue configuration of the conventional radio base station controller shown in FIG. In the embodiment of the present invention, the packet transmission software queues 13-1 to 13-n are queued from the conventional transmission data buffer to the n packet transmission software queues 13-1 to 13-n corresponding to each user by the transmission handler. The process of sequentially queuing -n data to the packet transmission hard queue 14 is changed.

  FIG. 3 is a diagram showing a method of using a transmission queue according to the embodiment of the present invention. In FIG. 3, in the embodiment of the present invention, the conventional transmission handler is separated into a user data transmission handler 232 and a control signal transmission handler 233, and n user data transmission queues 234-1 to 234 corresponding to each of them. Data is queued in two types of soft queues, n and a control signal dedicated transmission queue 235.

  The n user data transmission queues 234-1 to 234-n specially process user data (U-DATA) corresponding to each user, and the control signal dedicated transmission queue 235 is a control signal (C-DATA) from each user. Specialize in processing. When queuing data from the transmission data buffer 231, the user data transmission handler 232 trims user data (U-DATA) to be queued in the user data transmission queues 234-1 to 234-n, and transmits a control signal. The handler 233 cuts data to be queued in the control signal dedicated transmission queue 235.

  FIG. 4 is a diagram showing a queuing process to the packet transmission hard queue 235 by the queue control unit 236 of FIG. In FIG. 4, the queue controller 236 always monitors packets from the n user data transmission queues 234-1 to 234-n and the control signal dedicated transmission queue 235 sequentially while monitoring the control signal dedicated transmission queue 235 with priority. A process of queuing data one by one in the packet transmission hard queue 237 is performed.

  FIG. 5 is a block diagram showing a configuration of the queue control unit 236 of FIG. In FIG. 5, the queue control unit 236 includes a queue information monitoring table 2361 and a queue clear processing unit 2362.

  The queue information monitoring table 2361 activates the queue clear processing unit 2362 in the queue control unit 236 when the communication disconnection processing signal is input to the control signal dedicated transmission queue 235, and the user data transmission queue 234 to be the communication disconnection processing target. By clearing (resetting) the unnecessary user data U1 to U4 in -1 to 234-n, the resources of the user data transmission queues 234-1 to 234-n are allocated for the next user.

  As described above, in the embodiment of the present invention, the data queuing processing to the packet transmission hard queue 237 is divided into two types of soft queues of the user data transmission queues 234-1 to 234-n and the control signal dedicated transmission queue 235. By performing the separation and monitoring the user data transmission queues 234-1 to 234-n and the control signal dedicated transmission queue 235 by the queue control unit 236, a signal for communication disconnection processing is transmitted to the control signal dedicated transmission queue 235. When it enters, the queue clear processing unit 2362 in the queue control unit 236 is activated immediately, and unnecessary user data U1 in the user data transmission queues 234-1 to 234-n subject to communication disconnection processing To U4, the resources of the user data transmission queues 234-1 to 234-n are transferred to the next user. It can be eliminated allocation, and queues the unnecessary data to the packet transmitting hard queue 237 that for.

  As a result, in the embodiment of the present invention, the resources of the user data transmission queues 234-1 to 234-n can be allocated for new users to communicate next, and are not required for the packet transmission hard queue 237. No longer queue data.

  Next, embodiments of the present invention will be described with reference to the drawings. The configuration of the mobile communication system according to the embodiment of the present invention is the same as the configuration of the mobile communication system according to the embodiment of the present invention shown in FIG. 1, and the radio base according to the embodiment of the present invention. Since the configuration of the station control device is the same as the configuration of the radio base station control device according to the embodiment of the present invention shown in FIG. 2 and FIG. 5, the illustration thereof is omitted.

  Referring to FIG. 1, a mobile communication system according to an embodiment of the present invention shows a system that realizes packet basic connection with the Internet in a PDC (Personal Digital Cellular). This system connects a mobile terminal (not shown) to the Internet network 100 via various providers and performs packet data communication.

  In the present embodiment, while a plurality of mobile terminals call packet communication almost simultaneously in the service areas of the same radio base stations 1-1 and 1-2 and download a large amount of user data, It is applied when a disconnection process is performed from several randomly selected mobile terminals.

  The radio base stations 1-1 and 1-2 are used for exchanging radio section data with mobile terminals. An area that can be supported by one radio base station 1-1 and 1-2 is called a service area. The mobile terminal termination device 24 in the ATM switch 2 terminates the protocol with the mobile terminal. In addition, there is a radio base station control device 23 as a host device of the mobile terminal termination device 24. This radio base station control device 23 exists for each of the radio base stations 1-1 and 1-2, and the radio base station 1-1. , 1-2 is controlled.

  The packet processing devices 22 and 33 are installed in the ATM exchange 2 and the gateway exchange 3, respectively, and perform packet protocol processing in the ATM exchange 2 and the gateway exchange 3. The protocol converter 32 installed in the gateway exchange 3 converts the data protocol from the data format used in the ATM exchange 2 and the gateway exchange 3 to the data format used in the Internet network 100. Device. The ATM switches 21 and 31 are installed in the ATM exchange 2 and the gateway exchange 3, respectively.

  FIG. 6 is a diagram showing processing of a transmission queue in a mobile communication system according to an embodiment of the present invention, and FIG. 7 shows processing of the queue control unit 236 in the radio base station controller 23 according to an embodiment of the present invention. FIG. 8 is a flowchart showing the queue control processing of the queue controller 236 in the radio base station controller 23 according to one embodiment of the present invention. The operation of one embodiment of the present invention will be described with reference to FIGS. The processing shown in FIG. 8 is realized by the queue control unit 236 executing the program of the recording medium 238.

  First, in FIG. 6, user data [IP (Internet Protocol) packets] output by n mobile terminal users # 1 to #n to which identification information is assigned are IP1 to IPn.

  Also, in FIG. 6, a mobile terminal user uses a mobile terminal 6 that can be connected to the Internet in the service areas of the same radio base stations 1-1 and 1-2, and starts downloading a large amount of user data in order. In this case, the mobile terminal user who outputs user data IP2 among them transmits a communication disconnection request during download and attempts to disconnect the communication. The series of operations shown in FIG. 6 will be described in order below.

  In the operation of a1 in FIG. 6, since the user data IP1 is transmitted from the Internet network 100 side to the user # 1 of IP1, the user data transmission soft queue 234-1 corresponding to the user # 1 is switched to the packet transmission hard queue 237. Indicates that data is queued.

  The queue control unit 236 that monitors each soft queue 4 queues one user data IP1 addressed to the user # 1 to the packet transmission hard queue 237 (steps S1 to S3 in FIG. 8), and then transmits a control signal dedicated transmission queue. If the control signal is present, the control signal is queued in the packet transmission hard queue 237 (steps S1, S4 to S6 in FIG. 8). If the control signal is not present, the next user is checked. Go to the state of the user data transmission queue 234-1 corresponding to # 2 (step S in FIG. 8).

  The operation a2 in FIG. 6 indicates that the user data IP1 sent to the packet transmission hard queue 237 has been received by the mobile terminal 6 of the user # 1 via a wireless transmission path (not shown). FIG. 6 shows a state in which the operations of a1 and a2 are repeated for n persons in order from user # 1 to user #n. This operation is also shown in FIG.

  Here, when the user # 2 to which IP2 is assigned sends a communication disconnection request in the middle of communication, as shown in b1 of FIG. IP2 off) is queued in the control signal dedicated transmission queue 235. When the queue control unit 236 next sees the control signal dedicated transmission queue 235, as shown in b2 of FIG. 7, the queue control unit 236 transmits the control signal that has entered the control signal dedicated transmission queue 235 to the packet transmission hardware. At the same time as queuing to the queue 237, this control signal is copied to the queue information monitoring table 2361.

  The queue information monitoring table 2361 compares this copied control signal with the information stored on the table, and specifies that this control signal is a control signal for communication disconnection processing (step S7 in FIG. 8). The queue information monitoring table 2361 identified as the control signal for the communication disconnection process activates the queue clear processing unit 2362 (steps S8 and S9 in FIG. 8) as shown in b3 of FIG. The current user information is passed to the queue clear processing unit 2362.

  As shown in b4 of FIG. 7, the queue clear processing unit 2362 resets the queue for the user data transmission queue 234-2 used by the user # 2 indicated by the control signal (step S10 in FIG. 8). . As a result, the retained content of the reset user data transmission queue 234-2 is cleared, and is secured as an area for the user who starts the next new communication.

  Next, the queue control unit 236 alternately packets with the control signal dedicated transmission queue 235 from the user data transmission queue 234-1 of the user # 1 to the user data transmission queue 234-n of the user #n in the order shown in FIG. The queuing process to the transmission hard queue 237 is executed.

  As described above, in this embodiment, the soft queue configuration in the radio base station control apparatus 23 is divided into the user data transmission queues 234-1 to 234-n and the control signal dedicated transmission queue 235 corresponding to each mobile terminal 6. By queuing to the packet transmission hard queue 237 by giving priority to the control signal dedicated transmission queue 235, even when user data increases, the control signal can be processed quickly without being affected by it. it can.

  In the present embodiment, the queued control unit 236 constantly monitors the contents queued in the control signal dedicated transmission queue 235 so that when the contents of the control signal are the communication disconnection process, the communication disconnection control is performed. At the same time as queuing the signal to the packet transmission hard queue 237, unnecessary user data transmission queues 234-1 to 234-n are cleared. Thus, in this embodiment, unnecessary data is not queued from the user data transmission queues 234-1 to 234-n to the packet transmission hard queue 237, and the user data transmission queues 234-1 to 234- n can be used for a user who starts a new communication.

  Furthermore, in this embodiment, unnecessary data is not queued in the packet transmission hard queue 237, so that an effect of improving throughput and preventing unnecessary data from being transmitted on a transmission path such as a wireless communication section can be obtained.

  As another embodiment of the present invention, application to handover processing of a mobile terminal during packet communication in a mobile communication system that realizes packet basic connection with the Internet in PDC can be mentioned. The configuration of a mobile communication system according to another embodiment of the present invention is shown in FIG.

  A handover is when a mobile terminal 9 in a communication state moves from a service area supported by a source radio base station 8-1 to a service area supported by another destination radio base station 8-2. This is a process performed in order to be able to shift without disconnecting the communication and to better maintain the state of the communication channel within the same service area.

  When a handover occurs, processes c1 to c3 occur as shown in FIG. 9, the path between the source base station controller 71 and the destination base station controller 73 is connected. In the process c2 of FIG. 9, the destination base station controller 73 and the destination are connected. A path with the mobile terminal termination device 74 is connected. In the process of c3 in FIG. 9, the user information managed by the source mobile terminal control device 72 is copied to the destination mobile terminal control device 74. Then, the destination mobile terminal control device 74 returns a response to the newly added mobile terminal 9, whereby the handover process is completed.

  As described above, the handover process requires a large number of control processes, and the handover process response control signal transmitted from the destination mobile terminal control device 74 to the mobile terminal 9 may be delayed. If there is, there is a possibility that communication interruption and data loss may occur. Therefore, it can be said that the present embodiment is effective at the time of high traffic with a high possibility of data delay.

  In the mobile communication system to which the present embodiment is applied, when a plurality of mobile terminals 9 perform handover processing under a situation where traffic increases, the radio base station control device Therefore, it is possible to perform processing without being influenced by other user data generated at the same time.

  Further, in this embodiment, it is possible to always provide a comfortable communication state to the user by quickly performing the transition process from the source radio base station 8-1 to the destination radio base station 8-2. It becomes.

  As described above, in this embodiment, the transmission data processing route is distinguished from the control signal and the user data, and the process according to the communication state of the mobile terminal 9 is always performed. Processing can be realized.

1 is a block diagram showing a configuration of a mobile communication system according to an embodiment of the present invention. FIG. 2 is a block diagram illustrating a configuration example of a radio base station control device in FIG. 1. It is a figure which shows the usage method of the transmission queue by embodiment of this invention. It is a figure which shows the queuing process to the packet transmission hard queue by the queue control part of FIG. FIG. 3 is a block diagram illustrating a configuration of a queue control unit in FIG. 2. It is a figure which shows the process of the transmission queue in the mobile communication system by one Example of this invention. It is a figure which shows the process of the queue control part in the radio base station control apparatus by one Example of this invention. It is a flowchart which shows the queue control process of the queue control part in the radio base station control apparatus by one Example of this invention. It is a block diagram which shows the structure of the mobile communication system by the other Example of this invention. It is a block diagram which shows the transmission queue structure of the conventional radio base station control apparatus. It is a block diagram which shows the structure of the mobile communication system by a prior art example.

Explanation of symbols

1-1, 1-2 Radio base station
2,7 ATM switch
3 gateway exchange
4 Soft cues
5 Hard queue
6,9 Mobile terminal
8-1 Source wireless base station
8-2 Destination radio base station
21,31 ATM switch
22, 33 Packet processing device
23 Radio base station controller
24 Mobile terminal terminating equipment
32 Protocol converter
71 Source base station controller
72 Source mobile terminal control device
73 Destination Base Station Controller
74 Target Mobile Terminal Termination Device
231 Transmission data buffer
232 User data transmission handler
233 Control signal transmission handler 234-1 to 234-n User data transmission queue
235 Control signal dedicated transmission queue
236 Queue control unit
237 Packet transmission hard queue
238 recording media
2361 Queue information monitoring table
2362 Queue clear processing section

Claims (13)

A mobile communication system including a radio base station that transmits various signals to a mobile terminal through a packet transmission hard queue, and a radio base station controller that controls the radio base station,
A user data transmission queue provided corresponding to each of the mobile terminals and queuing user data to the mobile terminals;
A control signal dedicated transmission queue that is provided in common to each of the mobile terminals and queues a control signal to the mobile terminals;
The radio base station control device comprising: queue control means for alternately queuing user data queued in the user data transmission queue and control signals queued in the control signal dedicated transmission queue to the packet transmission hard queue. Have
The mobile communication system, wherein the queue control means identifies a content of the control signal by monitoring a control signal queued in the control signal dedicated transmission queue.   The mobile communication system according to claim 1, wherein the queue control means queues the control signal in the packet transmission hard queue with priority.   The queue control means discards user data addressed to a user indicated by the control signal from the user data transmission queue when a control signal for communication disconnection related processing is queued in the control signal dedicated transmission queue. The mobile communication system according to claim 1 or 2.   The mobile communication system according to claim 3, wherein a control signal for a handover process response transmitted to the mobile terminal is included as the control signal for the communication disconnection related process. A radio base station controller that controls a radio base station that transmits various signals to a mobile terminal through a packet transmission hard queue,
A user data transmission queue provided corresponding to each of the mobile terminals and queuing user data to the mobile terminals;
A control signal dedicated transmission queue that is provided in common to each of the mobile terminals and queues a control signal to the mobile terminals;
Queue control means for alternately queuing the user data queued in the user data transmission queue and the control signal queued in the control signal dedicated transmission queue to the packet transmission hard queue;
The radio base station control device, wherein the queue control means monitors the control signal queued in the control signal dedicated transmission queue and identifies the content of the control signal.   6. The radio base station control apparatus according to claim 5, wherein the queue control means queues the control signal in the packet transmission hard queue with priority.   The queue control means discards user data addressed to a user indicated by the control signal from the user data transmission queue when a control signal for communication disconnection related processing is queued in the control signal dedicated transmission queue. The radio base station controller according to claim 5 or 6.   8. The radio base station control apparatus according to claim 7, wherein a control signal for a handover process response transmitted to the mobile terminal is included as the control signal for the communication disconnection related process. A call state management transmission control method used in a mobile communication system including a radio base station that transmits various signals to a mobile terminal through a packet transmission hard queue and a radio base station controller that controls the radio base station There,
A user data transmission queue provided corresponding to each of the mobile terminals and queuing user data to the mobile terminals and a control signal provided to each of the mobile terminals and queued for a control signal to the mobile terminals A control signal dedicated transmission queue to be placed in the radio base station control device,
Queuing the user data queued in the user data transmission queue and the control signal queued in the control signal dedicated transmission queue alternately to the packet transmission hard queue on the radio base station controller side; And monitoring the control signal queued in the control signal dedicated transmission queue to identify the content of the control signal.   The call state management transmission control method according to claim 9, wherein the step of queuing to the packet transmission hard queue preferentially queues the control signal to the packet transmission hard queue.   In the step of queuing to the packet transmission hard queue, when a control signal for communication disconnection related processing is queued to the control signal dedicated transmission queue, user data addressed to the user indicated by the control signal is sent from the user data transmission queue. 11. The call state management transmission control method according to claim 9, further comprising a discarding step.   12. The call state management transmission control method according to claim 11, wherein a control signal for a handover process response transmitted to the mobile terminal is included as a control signal for the communication disconnection related process. A call state management transmission control method for use in a mobile communication system including a radio base station that transmits various signals to a mobile terminal through a packet transmission hard queue and a radio base station controller that controls the radio base station A program that is provided in a computer corresponding to each of the mobile terminals and that is queued in a user data transmission queue for queuing user data to the mobile terminals, and for each of the mobile terminals A process of queuing a control signal dedicated to a control signal dedicated transmission queue that is provided in common and queues a control signal to the mobile terminal alternately to the packet transmission hard queue; and the control signal dedicated transmission Monitoring the control signals queued in the queue and identifying the contents of the control signals. Because of the program.

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