JPH11266262A - Mobile packet communication system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve the efficiency of packet communication at a contention occurrence in packet transmission on a common channel between a packet communication equipment and a mobile terminal, in a mobile packet communication system for using the common channel and an individual channel. SOLUTION: In a packet communication equipment or a mobile terminal, a common channel packet transmission/reception control part M6 monitors the queuing number of a common channel packet transmission queue M8 and performs control, so as to erecute the packet transmission through the common channel when the queuing number is equal to or less than a threshold, and to switch over the packet transmission to the individual channel for transmission when the queuing number exceeds the threshold. When the common channel of the transmission queue M8 is in a transmittable state, a common channel packet transmission means M2 takes out transmission information from the transmission queue M8 and transmits a packet to the mobile terminal through the common channel. An individual channel packet transmission means M4 transmits the packet to the mobile terminal through the individual channel.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mobile packet provided with a packet communication device arranged on a network side and a mobile terminal for performing packet communication using the packet communication device and a common channel and an individual channel. The present invention relates to a communication system.

[0002]

2. Description of the Related Art As an example of performing packet communication using a common channel and a dedicated channel in a conventional mobile communication system, for example, "B-5-67: Adaptive Switching of Medium Access Control in DS-CDMA Packet Mobile Communication""199
7th IEICE Communication Society Conference ". The packet communication of the conventional mobile communication system is a competitive method suitable for low traffic according to the amount of data to be transmitted, that is, common channel packet communication, Alternatively, a reservation method suitable for high traffic, that is, individual channel packet communication is selected.

[0003]

In the conventional packet communication of a mobile communication system, a selection is made between a common channel packet transmission and an individual channel packet communication depending on the amount of data to be transmitted. When the mobile terminal performs common channel packet communication,
There has been a problem that the packet transmission throughput is reduced due to contention due to uplink common channel packet transmission from a plurality of mobile terminals.

[0004] The present invention has been made to solve the above-described problem, and performs packet transmission on an individual channel when packet transmission on a common channel is suspended due to contention.

[0005]

According to a first aspect of the present invention, there is provided a mobile packet communication system, comprising: a radio packet communication device arranged in one of a base station, a base station controller, and a switching center; An apparatus, at least one mobile terminal that performs wireless packet communication on a common channel and a dedicated channel, wherein the wireless packet communication apparatus includes a common channel transmission queue and a common channel packet transmission request when the common channel packet transmission request occurs. If the queuing number of the queue is 0 (the transmission queue is empty), packet transmission is performed to the mobile terminal on the common channel. If the queuing number of the transmission queue is not 0, the packet is transmitted to the transmission queue. First transmission control means for queuing transmission information, and each time one packet transmission on the common channel is completed, The waiting queue is monitored, and if there is queued transmission information, a packet is transmitted to the mobile terminal on a common channel, and a threshold that can be set in advance to the queuing number of the transmission waiting queue is set, and the queue is set. And a second transmission control means for taking out the queued transmission information and performing packet communication to the mobile terminal on the dedicated channel when the queuing number becomes equal to or more than the threshold during queuing. .

A mobile packet communication system according to a second aspect of the present invention is arranged in one of a base station device, a base station control device for managing the base station, and an exchange connected to the base station control device. A wireless packet communication device, and at least one mobile terminal that is wirelessly connected to the base station and performs packet communication with the wireless packet communication device on a common channel and a dedicated channel. A transmission queue for a channel, and, if the common channel is in a transmittable state, a common channel packet transmitting unit that extracts transmission information from the transmission queue and transmits a packet to the wireless packet communication device on the common channel. A common channel that notifies the common channel packet transmission / reception control means when a packet is received from the common channel A packet reception unit and common channel packet transmission information to the transmission waiting queue, instructing a control signal transmission / reception unit to start and end common channel packet communication, and switching the common channel packet communication to individual channel packet communication Common channel packet transmission / reception control means for instructing the start and end of individual channel packet communication using an individual traffic channel at the time of transmission, and individual channel packet transmission means for transmitting a packet to the wireless packet communication device on the individual channel. When receiving a packet from the dedicated channel, the dedicated channel packet receiving means for notifying the dedicated channel packet transmission / reception control means and the control signal sending / receiving means are instructed to start and end the dedicated channel packet communication. H Individual channel packet transmission / reception control means for notifying the individual channel transmission information to the channel packet transmission means and performing packet reception processing when notified of the packet reception from the individual channel packet reception means. When a common channel packet transmission request is issued and the queuing number of the transmission queue is 0 (the transmission queue is empty), a packet is transmitted to the mobile terminal on a common channel, and the queue of the transmission queue is queued. If the number of transmissions is not 0, the transmission information is queued in the transmission queue, and the transmission queue is monitored each time one packet transmission on the common channel is completed, and the queued transmission is monitored. If requested, the packet is transmitted to the mobile terminal on a common channel, and the transmission waiting queue is transmitted. A configurable queuing number is provided with a threshold that can be set in advance, and when the queuing number is equal to or greater than the threshold during the queuing, the queued transmission information is extracted and the dedicated channel is sent to the mobile terminal. It performs packet communication.

A mobile packet communication system according to a third aspect of the present invention provides a wireless packet communication device disposed in any one of a base station device, a base station control device, and an exchange, and a common channel for the wireless packet communication device. And at least one mobile terminal that performs wireless packet communication on a dedicated channel, wherein the mobile terminal is configured to queue a packet transmission queue of the common channel and to queue the transmission queue when a common channel packet transmission request occurs. When the number is 0, packet transmission is performed to the wireless packet communication device on the common channel, and when the queuing number of the transmission queue is not 0, a first queue for transmitting transmission information in the transmission queue is provided. Transmission control means, and monitors the transmission queue each time one packet transmission on the common channel is completed. If there is queued transmission information, packet transmission is performed to the wireless packet communication device on the common channel, and a threshold that can be set in advance to the number of queuing in the transmission waiting queue is set, and a queue is set at the time of queuing. And a second transmission control means for extracting queued transmission information and performing packet communication with the wireless packet communication device on the dedicated channel when the number of ingresses is equal to or greater than the threshold value.

A mobile packet communication system according to a fourth aspect of the present invention is arranged in one of a base station device, a base station control device for managing the base station, and an exchange connected to the base station control device. A wireless packet communication device, and at least one mobile terminal that is wirelessly connected to the base station and performs packet communication with the wireless packet communication device on a common channel and an individual channel. A transmission queue, a common channel packet transmitting means for extracting transmission information from the transmission queue if the common channel is in a transmittable state, and transmitting a packet to the wireless packet communication device on the common channel; Receives a common channel packet to notify the common channel packet transmission / reception control means when a packet is received from And notifying the common channel packet transmission information to the transmission waiting queue, instructing the control signal transmitting / receiving unit to start and end the common channel packet communication, and switching the common channel packet communication to the individual channel packet communication. Common channel packet transmission / reception control means for instructing start and end of individual channel packet communication using an individual traffic channel, individual channel packet transmission means for transmitting a packet to the wireless packet communication device on the individual channel, When a packet is received from a channel, the dedicated channel packet receiving means for notifying the dedicated channel packet transmission / reception control means and the control signal sending / receiving means are instructed to start and end the dedicated channel packet communication. When the dedicated channel packet is transmitted, the dedicated channel packet is transmitted. Individual channel packet transmission / reception control means for notifying the transmission means of the individual channel transmission information and performing packet reception processing when notified of the packet reception from the individual channel packet reception means, wherein the common channel packet transmission / reception control means When a channel packet transmission request occurs, the queuing number of the transmission queue is 0 (the transmission queue is empty).
In the case of, the packet is transmitted to the wireless packet communication device on the common channel, and if the queuing number of the transmission queue is not 0, transmission information is queued in the transmission queue and the transmission information is queued on the common channel. Each time one packet transmission is completed, the transmission queue is monitored, and if there is queued transmission information, a packet is transmitted to the wireless packet communication device on the common channel, and queuing of the transmission queue is performed. A threshold that can be set in advance is provided for the number, and when the queuing number becomes equal to or larger than the threshold during the queuing, the queued transmission information is taken out and packet communication is performed to the wireless packet communication device on the dedicated channel. Is what you do.

In a mobile packet communication system according to a fifth aspect of the present invention, the wireless packet communication device is characterized in that when packet transmission information is queued in a transmission queue of a common channel, a timer value which can be preset for each transmission information A transmission means is provided for starting a timer using the above-mentioned method, taking out transmission information from the transmission waiting queue when this timer expires, and transmitting a packet through an individual channel.

In the mobile packet communication system according to a sixth aspect, when packet transmission information is queued in a transmission waiting queue of a common channel, a timer using a timer value which can be preset for each transmission information is activated. When the timer expires, the transmission means is provided for taking out the transmission information from the transmission waiting queue and transmitting the packet on the dedicated channel.

In a mobile packet communication system according to a seventh aspect of the present invention, the wireless packet communication device includes a mobile terminal identification capable of identifying a mobile terminal performing packet communication in transmission information queued in a transmission waiting queue of a common channel. The information is added, the transmission information queued in the transmission queue is extracted, and the transmission information extraction order when performing packet transmission on the dedicated channel is equally extracted for each mobile terminal using the mobile terminal identification information. It is provided with means for performing packet communication.

In a mobile packet communication system according to an eighth aspect of the present invention, the wireless packet communication device adds packet transmission class information to transmission information queued in a packet transmission wait queue of a common channel, Transmission / reception control for fetching transmission information queued in a queue and performing transmission of the transmission information on an individual channel by weighting the transmission information extraction order with the packet transmission class information and assigning a priority to individual channel transition for each mobile terminal Means.

In a mobile packet communication system according to a ninth aspect of the present invention, the wireless packet communication device includes monitoring means for monitoring the amount of packet communication traffic on a common channel. A first threshold storage unit for setting and storing a common channel return traffic amount threshold in advance, and a second threshold for setting and storing a channel switching threshold in advance. When the traffic volume of the common channel is equal to or less than the common channel return traffic volume threshold, the mobile terminal performing packet communication on the dedicated channel, among the mobile terminals performing packet communication, sets the channel switching frequency to the channel switching frequency threshold. A packet communication means for performing packet communication by switching the following mobile terminals to a common channel is provided. Than it is.

[0014]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiment 1 FIG. 1 is an overall configuration diagram of a mobile communication network to which a wireless packet communication device and a mobile terminal according to the present invention belong. In the figure, 1
Reference numerals a to 1h denote mobile terminals belonging to a mobile communication network, each of which has a packet communication function. Although the mobile terminal 1 in the figure is shown as having a packet communication function, a mobile terminal without a packet communication function may exist in a mobile communication network. Reference numerals 2a to 2d in the figure denote wireless base station devices, which set up a wireless link with the mobile terminal 1 via the wireless line 7. The wireless interface of the wireless line 7 shown in the figure can perform wireless packet communication on a common channel and an individual channel (individual traffic channel).

The radio base stations 2a to 2b are connected to a radio base station controller 3a in the figure, and the radio base stations 2c to 2d
It is connected to the radio base station controller 3b in the figure. Radio packet communication apparatuses 6a to 6b according to the present invention are arranged in the radio base station control apparatuses 3a to 3b, respectively. The radio base station controller 3 is connected to the exchange 4. The exchange 4 is connected to other exchanges, for example, other devices in a mobile service execution device mobile communication network, and other networks via the trunk lines 5a to 5b.

FIG. 1 shows an example of the overall configuration of a mobile communication network, and the arrangement of devices and stations other than the wireless packet device and mobile terminal according to the present invention may be examples other than those shown in FIG.

In the example of FIG. 1, the radio packet communication devices 6a to 6b are arranged in the radio base station controllers 3a to 3b, but, for example, the radio base station devices 2a to 2d, Alternatively, it may be arranged in the exchange 4.

FIG. 2 is a sequence diagram showing one embodiment of the mobile packet communication device according to the present invention. The operation when common channel packet communication is performed between the wireless packet communication device 6 and the mobile terminal 1 is shown. It is a sequence diagram to be described. Next, the operation will be described. As shown in FIG. 2, when starting packet communication on the common channel, the mobile terminals 1a to 1a
A common channel packet communication start procedure has been started on the common control channel between 1h and the wireless packet communication devices 6a to 6b.

Here, the common control channel used refers to a channel on the radio interface between the mobile terminal 1 and the radio base station apparatus 2, and is used for the radio base station apparatus 2 and the radio packet communication apparatus. 6 is communicated by a control signal channel on a wired line.

When the common channel packet communication start procedure is started, common channel packet communication is started using the common traffic channel of the radio line 7. When the packet communication between the mobile terminal 1 and the wireless packet communication device 6 is completed, a common channel packet communication ending procedure is activated on the common control channel of the wireless channel 7, and the common channel packet communication is completed.

FIG. 3 is a sequence diagram for explaining the operation when individual channel packet communication is performed between the wireless packet communication device and the mobile terminal in this embodiment. As shown in FIG. 3, when starting packet communication on an individual channel, an individual channel packet communication start procedure is activated between the mobile terminal 1 and the wireless packet communication device 6 on a common control channel.

When the procedure for starting the communication of the individual channel packet is started, the individual channel packet communication is started using the individual traffic channel of the radio line 7. When the packet communication between the mobile terminal 1 and the wireless packet communication device 6 ends, an individual channel packet communication end procedure is activated on the common control channel of the wireless line 7, and the common channel packet communication ends.

FIGS. 2 and 3 show examples of procedures for starting and ending the common channel packet communication and the individual channel packet communication. Packet communication of each channel may be performed by other procedures. .

FIG. 4 is a block diagram showing a configuration example of a radio packet communication device and a mobile terminal according to this embodiment. In the figure, reference numeral M6 denotes a common channel packet transmission / reception control unit that uses a common traffic channel, instructs the control signal transmission / reception unit M1 to start and end common channel packet communication, and performs common channel packet communication in individual channel packet communication. Instructs the start and end of the individual channel packet communication using the individual traffic channel when switching to.

When transmitting the common channel packet, the common channel packet transmission / reception control unit M6 notifies the transmission queue M8 of the common channel transmission information. Further, the common channel packet transmission / reception control unit M6 performs packet reception processing when notified of packet reception from the common channel packet reception unit M3. When the common channel packet transmitting unit M2 enters the packet transmission enabled state while the common channel transmission information is queued in the transmission waiting queue M8, the common channel packet transmitting unit M2 extracts the transmission information from the transmission waiting queue M8 and returns the packet. Send.

Wireless packet communication device 6 and mobile terminal 1
The transmission waiting queue M8 is a FIFO (first in fir
st out) queue, and when a plurality of common channel packet transmission requests are queued in the transmission queue M8, the order in which the common channel packet transmission unit M2 enters the transmission enabled state and takes out the transmission requests from the transmission queue M8 is one. Retrieve from the oldest queued transmission request. Each time the number of transmission request queues queued in the transmission queue M8 changes, it is notified from the transmission queue to the common channel packet transmission / reception control unit M6.

Reference numeral M7 denotes an individual channel packet transmission / reception control unit using an individual traffic channel, which instructs the control signal transmission / reception unit M1 to start and end individual channel packet communication and, when transmitting a common channel packet, a transmission queue. The common channel transmission information is notified to M8. When transmitting an individual channel packet, the individual channel packet transmission / reception controller M7 notifies the individual channel packet transmitter M4 of individual channel transmission information. Also, the individual channel packet transmission / reception control unit M7 performs a packet reception process when notified of the packet reception from the individual channel packet reception unit M5.

FIG. 5 is a flowchart for explaining the operation of the radio packet communication apparatus and the mobile terminal according to the present embodiment. When an individual channel packet communication request is generated in the wireless packet communication device 6 and the mobile terminal 1, the process starts from step S2, and the process moves to step S9 to perform an individual channel packet transmission process using an individual traffic channel.

When a common channel packet communication request occurs in the wireless packet communication device and the mobile terminal, step S1 is performed.
, The process proceeds to step S3. Step S3 is a step for determining whether or not the transmission waiting queue is empty.
If 2 is in a transmittable state, the transmission waiting queue M8 becomes empty. If the transmission waiting queue M8 is empty, the process proceeds to step S6, where a common channel packet transmission process is performed. If the transmission waiting queue is not empty in step S3, the process proceeds to step S4, where the transmission request is queued in the transmission waiting queue M8, and the process proceeds to step S4.
Move to 5

Step S5 is a step of determining whether or not the queuing number of the transmission queue M8 is equal to or larger than a threshold value set in advance in the wireless packet communication device and the mobile terminal. If the queuing number is less than the threshold, the transmission request is sent to the transmission waiting queue M8.
Queued to. If the queuing number is equal to or larger than the threshold, the process proceeds to step S9, and the transmission request is switched from the common channel packet communication request to the individual channel packet communication request using the individual traffic channel. This switching is performed by the common channel packet transmission / reception control unit M6 in FIG. 4 instructing the control signal transmission / reception unit M1 to start individual channel packet communication. Thus, the common channel packet communication can be switched to the individual channel packet communication.

According to this embodiment, the radio packet communication apparatus automatically changes a common channel packet communication request to individual channel packet communication when the traffic volume per unit time of packet communication on the common channel becomes congested. Since the switching is performed, the efficiency of common channel packet communication between a plurality of mobile terminals is improved.

Also, according to this embodiment, the mobile terminal transmits the uplink common channel packet to the radio packet communication device when the traffic volume per unit time of the uplink common channel is congested. Since the packet transmission is automatically performed on the dedicated channel, the waiting time for transmitting the uplink common channel packet at the mobile terminal can be made shorter than before.

Embodiment 2 FIG. FIG. 6 is a flowchart showing another embodiment of the mobile communication system according to the present invention. In the wireless packet communication apparatus and the mobile terminal, the operation of activating a timer when a transmission request is queued in a transmission waiting queue is described. It is a flowchart shown. Processing starts from step S11 when wireless packet communication or a mobile terminal generates a common channel packet transmission request and the transmission request is queued in the transmission waiting queue.
When the transmission request is queued in step S11, the process proceeds to step S12, and a timer corresponding to the queued transmission request is started. It is assumed that the timer value of the started timer can be easily changed from the outside by a wireless packet communication device or a maintenance console connected to the mobile terminal.

When the timer corresponding to the queued transmission request is started, the process proceeds to step S13. Step S13 is a process for monitoring expiration of the timer. When the timer expires, the process proceeds to step S16, where the transmission request performs an individual channel packet transmission process using an individual traffic channel. If the timer has not expired in step S13, the process moves to step S14, and it is determined whether or not the transmission request is queued in the transmission waiting queue.

If queued, step S
The process moves to 13. If the timer has not expired and the transmission request is being queued, a process of monitoring the timer expiration and the queuing state is performed in steps S13 and S14. If the transmission request has not been queued in the transmission waiting queue in step S14, the process proceeds to step S15, and the timer is stopped.

According to this embodiment, the radio packet communication device and the mobile terminal transmit the packet waiting for transmission due to congestion on the common channel on the individual channel when the timer expires. Can be suppressed.

Embodiment 3 FIG. 7 is an explanatory diagram showing another embodiment of the mobile packet communication apparatus according to the present invention. When transmission requests for a plurality of mobile terminals are queued in the transmission queue, transmission is performed from this transmission queue. It is a figure which shows the order of extraction of a request. As shown in FIG. 7, the queued transmission information is given an identifier for identifying the mobile terminal to which the packet is to be transmitted. This identifier uniquely identifies the mobile terminal in the mobile communication network. In the present embodiment, the common channel packet transmission / reception control unit M6 of FIG. 4 assigns an identifier and queues the transmission queue M8.
Other parts may provide the identifier. As shown in FIG. 7, the order of taking out the transmission requests from the transmission waiting queue is as follows.
It is extracted in the queuing order for each mobile terminal of each packet transmission destination.

FIG. 8 is an explanatory diagram showing an example of realizing a transmission queue in the wireless packet communication apparatus according to this embodiment. In FIG. 8, M11a to M11n are transmission waiting queues provided for each packet destination mobile terminal.
M12 is a transmission queue selection processing unit, which determines the mobile terminal of the packet transmission destination of each transmission request and queues it in the transmission queues M11a to M11n for each mobile terminal. The order of taking out the transmission requests from the respective transmission waiting queues is evenly taken out from the transmission waiting queue for each mobile terminal.

According to this embodiment, when switching from the common channel to the individual channel, the wireless packet communication device can perform the switching equally for each mobile terminal of the communication destination.

Embodiment 4 FIG. FIG. 9 is an explanatory view showing another embodiment of the mobile packet communication apparatus according to the present invention. When transmission requests for a plurality of mobile terminals are queued in the transmission queue, transmission is performed from the transmission queue. It is a figure which shows the order of extraction of a request. As shown in FIG. 9, the transmission information queued is provided with a transmission class indicating a priority. In the present embodiment, priority is given to classes 1, 2, and 3 in this order. As shown in FIG. 9, the order of taking out the transmission requests from the transmission waiting queue is taken out from the priority class in order.

According to this embodiment, when switching from the common channel to the individual channel, the wireless packet communication device can set the switching priority for each mobile terminal of the communication destination.

Embodiment 5 FIG. FIG. 10 is a block diagram showing a configuration example of a wireless packet communication device showing another embodiment of the mobile packet communication device according to the present invention.
This is obtained by adding a downlink common channel traffic monitoring unit M21 and an uplink common channel traffic monitoring unit M22 to the configuration example of the wireless packet communication device shown in FIG. The downlink traffic monitoring unit M21 is a unit that measures and monitors the amount of traffic per unit time of the downlink common traffic channel, and the result is notified to the common channel packet transmission / reception control unit M6.

Uplink common channel traffic monitor M2
Reference numeral 2 denotes a unit for measuring and monitoring the traffic amount of the uplink common traffic channel per unit time, and the result is notified to the common channel packet transmission / reception control unit M6. When the traffic amount notified from both the common channel traffic monitoring units M21 and M22 becomes equal to or smaller than the common channel return traffic amount threshold value preset by the common channel packet transmission / reception control unit M6, switching from the common channel packet communication has been completed. The individual channel packet communication is switched to the original common channel packet communication. It is assumed that the common channel return traffic amount threshold can be easily changed from the outside by a maintenance console or the like connected to the wireless packet communication device.

FIG. 11 is a common channel packet communication management table for managing the state of common channel packet communication by the wireless packet communication device according to this embodiment. The table is configured such that the packet communication identifier for uniquely identifying the packet communication in the wireless packet communication device and the currently used channel can be read by using the communication start order of the common channel packet communication as a key item.

FIG. 12 is a flowchart for explaining the operation of switching the channel used for packet communication by the wireless packet communication apparatus according to this embodiment. When the wireless packet communication device is activated and starts operating, the process starts from step S21 and moves to step S22. Step S22 is a step of measuring and monitoring the traffic volume per unit time of the uplink and downlink common channels.

Next, the process moves to step S23. Step S23 is a step of determining whether or not the traffic amount measured in step S22 is equal to or less than a preset common channel return traffic amount threshold value. If not, the process proceeds to step S22, and if not, the process proceeds to step S24.

In the embodiment of FIG. 12, the traffic amount is periodically measured, monitored, and the threshold value is determined. However, the threshold value may be determined when the traffic amount changes.

Step S24 is a process of reading the common channel packet communication management table of FIG. 11 and extracting the packet communication identifier of the individual channel using the smallest communication start order from the read table contents. Next, the process proceeds to step S25. Move on. In step S25, step S
This is a process of switching the individual channel packet communication corresponding to the packet communication identifier extracted in 24 to the common channel packet communication.

In the example of the table shown in FIG. 11, the packet communication using the common channel having the lowest activation order has the packet communication identifier # 1. Channel switching is performed by the common channel packet transmission / reception control unit M6 of FIG. 10 to the control signal transmission / reception unit M1 to end the individual channel packet communication,
And the start of the common channel packet communication. Channel switching is performed by notifying the end of the individual channel packet communication and the start of the common channel packet communication from the common channel packet transmission / reception control unit M6 of FIG. 10 to the control signal transmission / reception unit M1.

When the process of step S25 is completed, the process proceeds to step S22, where the traffic amount is measured again.
Perform monitoring.

According to the present invention, when the traffic amount per unit time of the common channel falls below the threshold, the wireless packet communication device shifts the communication using the dedicated channel to the common channel, so that the traffic of the dedicated channel The amount can be reduced.

[0052]

According to the first aspect of the present invention, the radio packet communication apparatus automatically transmits a common channel packet communication request to an individual channel packet when a traffic volume per unit time of packet communication on the common channel becomes congested. Switching to communication has the effect of improving the efficiency of common channel packet communication between a plurality of mobile terminals.

Further, according to the second invention, the radio packet communication device automatically transmits a common channel packet communication request to an individual channel packet when the traffic volume per unit time of packet communication on the common channel is congested. Switching to communication has the effect of improving the efficiency of common channel packet communication between a plurality of mobile terminals.

Further, according to the third aspect, the mobile terminal comprises:
If the traffic volume per unit time of the uplink common channel is congested when performing uplink common channel packet transmission from the mobile terminal to the wireless packet communication device, the packet is automatically transmitted on an individual channel. There is an effect that the uplink common channel packet transmission waiting time can be made shorter than before.

Further, according to the fourth invention, the mobile terminal comprises:
If the traffic volume per unit time of the uplink common channel is congested when performing uplink common channel packet transmission from the mobile terminal to the wireless packet communication device, the packet is automatically transmitted on an individual channel. There is an effect that the uplink common channel packet transmission waiting time can be made shorter than before.

According to the fifth aspect of the present invention, the wireless packet communication apparatus transmits a packet waiting for transmission due to congestion on a common channel on an individual channel when the timer expires, so that the transmission waiting time is suppressed to within the timer value. This has the effect that it can be performed.

Further, according to the sixth invention, the mobile terminal comprises:
Since a packet waiting for transmission due to congestion on the common channel is transmitted on the individual channel when the timer expires, the transmission waiting time can be suppressed within the timer value.

Further, according to the seventh aspect, the radio packet communication apparatus has an effect that, when switching from the common channel to the individual channel, the switching can be performed equally for each mobile terminal of the communication destination.

Further, according to the eighth aspect, the radio packet communication device has an effect that, when switching from the common channel to the individual channel, the switching priority can be set for each mobile terminal of the communication destination.

According to the ninth invention, when the traffic volume per unit time of the common channel falls below the threshold, the wireless packet communication device shifts the communication using the individual channel to the common channel. There is an effect that the traffic amount of the individual channel can be reduced.

[Brief description of the drawings]

FIG. 1 is an overall configuration diagram of a mobile communication network to which a wireless packet communication device and a mobile terminal according to the present invention belong.

FIG. 2 is a sequence diagram showing one embodiment of a mobile packet communication device according to the present invention.

FIG. 3 is a sequence diagram illustrating an operation when performing individual channel packet communication between a wireless packet communication device and a mobile terminal according to the first embodiment.

FIG. 4 is a block diagram illustrating a configuration example of a wireless packet communication device and a mobile terminal according to the first embodiment.

FIG. 5 is a flowchart illustrating operations of the wireless packet communication device and the mobile terminal according to the first embodiment.

FIG. 6 is a flowchart showing another embodiment of the mobile communication system according to the present invention.

FIG. 7 is an explanatory diagram showing another embodiment of the mobile packet communication device according to the present invention.

FIG. 8 is an explanatory diagram showing an example of realizing a transmission wait queue in the wireless packet communication device according to the embodiment.

FIG. 9 is an explanatory diagram showing another embodiment of the mobile packet communication device according to the present invention.

FIG. 10 is a block diagram illustrating a configuration example of a wireless packet communication device according to another embodiment of the mobile packet communication device according to the present invention.

FIG. 11 is a common channel packet communication management table in which the wireless packet communication device according to the present embodiment manages the state of common channel packet communication.

FIG. 12 is a flowchart illustrating an operation of switching a channel used for packet communication in the wireless packet communication device according to the present embodiment.

[Explanation of symbols]

 1a to 1h Mobile terminal 2a to 2d Radio base station device 3a to 3b Radio base station control device 4 Switching center 5a to 5b Relay line 6a to 6b Radio packet communication device M1 Control signal transmitting / receiving unit M2 Common channel packet transmitting unit M3 Common channel packet Receiver M4 Individual channel packet transmitter M5 Individual channel packet receiver M6 Common channel transmission / reception controller M7 Individual channel transmission / reception controller M8 Transmission waiting queue M11a Transmission waiting queue for mobile terminal # 1 M11b Transmission waiting queue for mobile terminal # 2 M11c Moving Transmission queue for terminal # 3 M11n Transmission queue for mobile terminal #n M12 Transmission queue selection processor M21 Downlink traffic monitor M22 Upstream traffic monitor

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[Procedure amendment]

[Submission date] April 26, 1999

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] Claims

[Correction method] Change

[Correction contents]

[Claims]

[Procedure amendment 2]

[Document name to be amended] Statement

[Correction target item name] 0005

[Correction method] Change

[Correction contents]

[0005]

According to a first aspect of the present invention, there is provided a mobile packet communication system, comprising: a radio packet communication device arranged in one of a base station, a base station controller, and a switching center; A wireless terminal for performing wireless packet communication on a common channel and a dedicated channel, the wireless packet communication device comprising: a common channel transmission wait queue; and a common channel packet transmission request when the common channel packet transmission request occurs. If the queuing number of the queue is 0 (the transmission queue is empty), packet transmission is performed to the mobile terminal on the common channel. If the queuing number of the transmission queue is not 0, the packet is transmitted to the transmission queue. First transmission control means for queuing transmission information; and a first transmission control means for ending the transmission of one packet on the common channel. Monitors the transmission queue, performs the packet transmission to the mobile terminal in the common channel if there is transmission information that has been queued, may be provided a threshold value can be pre-set to the number of queuing the transmission queue,
Second transmission control means for taking out transmission information queued and performing packet communication to the mobile terminal on the dedicated channel when the number of queuing becomes equal to or more than the threshold value during the queuing. It is.

[Procedure amendment 3]

[Document name to be amended] Statement

[Correction target item name] 0006

[Correction method] Change

[Correction contents]

A mobile packet communication system according to a second aspect of the present invention is arranged in one of a base station device, a base station control device for managing the base station, and an exchange connected to the base station control device. A wireless packet communication device, and at least one mobile terminal that is wirelessly connected to the base station and performs packet communication with the wireless packet communication device on a common channel and a dedicated channel. A transmission queue for a channel, common channel packet transmitting means for extracting transmission information from the transmission queue if the common channel is in a transmittable state, and transmitting a packet to the mobile terminal on the common channel; Receives a common channel packet to notify the common channel packet transmission / reception control means when a packet is received from And notifying the common channel packet transmission information to the transmission waiting queue, instructing the control signal transmitting / receiving means to start and end the common channel packet communication, and switching the common channel packet communication to the individual channel packet communication. Common channel packet transmission / reception control means for instructing start and end of dedicated channel packet communication using a dedicated traffic channel, dedicated channel packet transmitting means for transmitting a packet to the mobile terminal on the dedicated channel, A dedicated channel packet receiving means for notifying the dedicated channel packet transmission / reception control means when receiving a packet; and instructing the control signal transmitting / receiving means to start and end the dedicated channel packet communication. Individual channel packet transmission / reception control means for notifying individual channel transmission information and receiving a packet from the individual channel packet reception means, and performing packet reception processing. When the request is generated, if the queuing number of the transmission queue is 0 (the transmission queue is empty), a packet is transmitted to the mobile terminal through a common channel. If not,
The transmission information is queued in the transmission queue, and the transmission queue is monitored every time one packet transmission on the common channel is completed. Performs packet transmission to the terminal, provides a threshold that can be set in advance to the queuing number of the transmission queue, if the queuing number is equal to or greater than the threshold at the time of queuing, the queued transmission information The packet is taken out and packet communication is performed to the mobile terminal on the dedicated channel.

[Procedure amendment 4]

[Document name to be amended] Statement

[Correction target item name] 0007

[Correction method] Change

[Correction contents]

A mobile packet communication system according to a third aspect of the present invention provides a wireless packet communication device disposed in any one of a base station device, a base station control device, and an exchange, and a common channel for the wireless packet communication device. And at least one mobile terminal performing wireless packet communication on an individual channel, wherein the mobile terminal has a queue for transmitting a packet on a common channel and a queuing number of the queue for transmitting when a request for transmitting a common channel packet occurs. Is 0, a packet is transmitted to the wireless packet communication device on the common channel, and if the queuing number of the transmission queue is not 0, the first transmission queues transmission information in the transmission queue. Control means for monitoring the transmission queue each time one packet transmission on the common channel is completed. If there is queued transmission information, packet transmission is performed to the wireless packet communication device on the common channel, and a presettable threshold is provided for the number of queuing of the transmission waiting queue, and queuing is performed at the time of queuing. When the number is equal to or more than the threshold value, a second transmission control means for extracting queued transmission information and performing packet communication to the wireless packet communication device through the dedicated channel.

[Procedure amendment 5]

[Document name to be amended] Statement

[Correction target item name] 0008

[Correction method] Change

[Correction contents]

A mobile packet communication system according to a fourth aspect of the present invention is arranged in one of a base station device, a base station control device for managing the base station, and an exchange connected to the base station control device. A wireless packet communication device, and at least one mobile terminal that is wirelessly connected to the base station and performs packet communication with the wireless packet communication device on a common channel and an individual channel. A transmission queue, a common channel packet transmitting means for extracting transmission information from the transmission queue if the common channel is in a transmittable state, and transmitting a packet to the wireless packet communication device on the common channel; Receives a common channel packet to notify the common channel packet transmission / reception control means when a packet is received from And notifying the common channel packet transmission information to the transmission waiting queue, instructing the control signal transmitting / receiving means to start and end the common channel packet communication, and switching the common channel packet communication to the individual channel packet communication. Common channel packet transmission / reception control means for instructing start and end of individual channel packet communication using an individual traffic channel, individual channel packet transmission means for transmitting a packet to the wireless packet communication device on the individual channel, When a packet is received from a channel, the dedicated channel packet receiving means notifies the dedicated channel packet transmission / reception control means and the control signal sending / receiving means of starting and ending the dedicated channel packet communication. Dedicated channel packet transmission / reception control means for notifying the dedicated channel transmission information to the port transmission means and performing packet reception processing when notified of the packet reception from the dedicated channel packet reception means, wherein the common channel packet transmission / reception control means comprises: When a common channel packet transmission request occurs, the queuing number of the transmission queue is 0 (the transmission queue is empty).
In the case of, the packet is transmitted to the wireless packet communication device on the common channel, and if the queuing number of the transmission queue is not 0, transmission information is queued in the transmission queue and the transmission information is queued on the common channel. Each time one packet transmission is completed, the transmission queue is monitored, and if there is queued transmission information, a packet is transmitted to the wireless packet communication device on the common channel, and queuing of the transmission queue is performed. A threshold that can be set in advance is provided for the number, and when the queuing number becomes equal to or larger than the threshold during the queuing, the queued transmission information is taken out and packet communication is performed to the wireless packet communication device on the dedicated channel. Is what you do.

[Procedure amendment 6]

[Document name to be amended] Statement

[Correction target item name] 0009

[Correction method] Change

[Correction contents]

A mobile packet communication system according to a fifth aspect of the present invention provides a wireless packet communication device disposed in any one of a base station device, a base station control device, and an exchange, and a common channel for the wireless packet communication device. And at least one mobile terminal that performs wireless packet communication on a dedicated channel, wherein the wireless packet communication device queues the transmission queue when a common channel packet transmission request occurs. Number is 0
If (the transmission queue is empty), a packet is transmitted to the mobile terminal on the common channel, and if the number of queues in the transmission queue is not 0, the transmission information is queued in the transmission queue. And transmitting a packet to the mobile terminal through a common channel if there is queued transmission information, and activating a timer when the transmission information is queued in a transmission waiting queue of the common channel. And a second transmission control means for taking out transmission information from the transmission waiting queue when the timer expires, and performing packet communication to the mobile terminal via a dedicated channel.

[Procedure amendment 7]

[Document name to be amended] Statement

[Correction target item name] 0010

[Correction method] Change

[Correction contents]

A mobile packet communication system according to a sixth aspect of the present invention provides a wireless packet communication device disposed in any one of a base station device, a base station control device, and an exchange, and a common channel for the wireless packet communication device. And at least one mobile terminal performing wireless packet communication on an individual channel, wherein the mobile terminal has a queue for transmitting a packet on a common channel and a queuing number of the queue for transmitting when a request for transmitting a common channel packet occurs. Is 0, a packet is transmitted to the wireless packet communication device on the common channel, and if the queuing number of the transmission queue is not 0, the first transmission queues transmission information in the transmission queue. To the wireless packet communication device through a common channel if there is control information and queued transmission information A packet transmission is performed, and a timer is started when transmission information is queued in a transmission queue of a common channel, and when the timer expires, the transmission information is taken out of the transmission queue and the radio packet communication device is transmitted over an individual channel. The second that performs packet communication to
Transmission control means.

[Procedure amendment 8]

[Document name to be amended] Statement

[Correction target item name] 0013

[Correction method] Deleted

[Procedure amendment 9]

[Document name to be amended] Statement

[Correction target item name] 0060

[Correction method] Deleted

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Koji Matsuyama inventor 2-3-2 Marunouchi, Chiyoda-ku, Tokyo Mitsubishi Electric Corporation

Claims (9)

[Claims] 1. A wireless packet communication device disposed in one of a base station device, a base station control device, and a switching center, and at least one mobile device that performs wireless packet communication with the wireless packet communication device on a common channel and an individual channel. The wireless packet communication apparatus comprises: a transmission queue for a common channel, and when a transmission request for the common channel packet is generated, the queuing number of the transmission queue is 0 (the transmission queue is empty). A first transmission control unit for performing packet transmission to the mobile terminal on the common channel, and queuing transmission information in the transmission queue when the number of queues in the transmission queue is not 0;
Each time one packet transmission on the common channel is completed, the transmission queue is monitored, and if there is queued transmission information, the packet is transmitted to the mobile terminal on the common channel, and the transmission queue is A threshold that can be set in advance to the number of queuing is provided, and when the number of queuing is equal to or larger than the threshold during the queuing,
And a second transmission control means for extracting queued transmission information and performing packet communication with the mobile terminal on the dedicated channel. 2. A base station device, a base station control device for managing the base station, a wireless packet communication device disposed in one of exchanges connected to the base station control device, and a wireless communication device with the base station. Connected to the wireless packet communication device and at least one mobile terminal that performs packet communication on a common channel and a dedicated channel, wherein the wireless packet communication device has a transmission queue for the common channel and is capable of transmitting the common channel. If so, a common channel packet transmitting means for extracting transmission information from the transmission queue and transmitting a packet to the wireless packet communication device on the common channel; and a common channel packet transmission / reception control means for receiving a packet from the common channel. Common channel packet receiving means for notifying the common channel packet transmission information The individual channel packet using the individual traffic channel when switching the common channel packet communication to the individual channel packet communication while notifying the transmission queue and instructing the control signal transmitting / receiving unit to start and end the common channel packet communication. Common channel packet transmission / reception control means for instructing start and end of communication, individual channel packet transmission means for transmitting a packet to the wireless packet communication device on the individual channel, and individual channel packet when a packet is received from the individual channel. The individual channel packet receiving means for notifying the transmission / reception control means and the start and end of the individual channel packet communication are instructed to the control signal transmitting / receiving means, and when transmitting the individual channel packet, the individual channel packet transmitting means is notified of the individual channel transmission information. I Individual channel packet transmission / reception control means for performing packet reception processing when notified of packet reception from the individual channel packet reception means, wherein the common channel packet transmission / reception control means transmits the common channel packet when a request for transmission is received. If the queuing number of the waiting queue is 0 (the transmitting queue is empty), the packet is transmitted to the mobile terminal through a common channel. If the queuing number of the transmitting queue is not 0, the transmitting queue is transmitted. Queues transmission information, monitors the transmission queue each time one packet transmission on the common channel is completed, and transmits a packet to the mobile terminal on the common channel if there is a queued transmission request. And a threshold that can be set in advance for the number of queues in the transmission queue is set. Wherein if the queuing number is equal to or larger than the threshold value at the time of the queuing, the mobile packet communication system, characterized by taking out the transmission information queued packet communication to the mobile terminal in the dedicated channel. 3. A wireless packet communication device disposed in any one of a base station device, a base station control device, and a switching center, and at least one mobile device performing wireless packet communication with the wireless packet communication device on a common channel and an individual channel. The mobile terminal, the mobile terminal, the common channel packet transmission queue, when the common channel packet transmission request occurs, if the queuing number of the transmission queue is 0, the radio in the common channel A first transmission control unit for transmitting a packet to the packet communication device and queuing transmission information in the transmission queue if the number of queues in the transmission queue is not 0; The transmission wait queue is monitored every time transmission is completed, and if there is queued transmission information, the common A packet is transmitted to the wireless packet communication device through a channel, and a presettable threshold value is set for the queuing number of the transmission waiting queue. If the queuing number is equal to or larger than the threshold value during the queuing, And a second transmission control means for performing packet communication with the wireless packet communication device on the dedicated channel by extracting the transmitted transmission information. 4. A base station device, a base station control device for managing the base station, a wireless packet communication device disposed in any of the exchanges connected to the base station control device, and a wireless communication with the base station. Connected to the wireless packet communication device and at least one mobile terminal that performs packet communication on a common channel and an individual channel, wherein the mobile terminal has a transmission queue for the common channel and a transmission queue for the common channel. If so, common channel packet transmitting means for extracting transmission information from the transmission waiting queue and transmitting a packet to the wireless packet communication device on the common channel, and notifying the common channel packet transmission / reception control means when a packet is received from the common channel. A common channel packet receiving means for transmitting the common channel packet transmission information to the transmission waiting key. To the control signal transmission / reception unit to start and end common channel packet communication, and to start individual channel packet communication using an individual traffic channel when switching from common channel packet communication to individual channel packet communication. And a common channel packet transmission / reception control means for instructing termination, an individual channel packet transmission means for transmitting a packet to the wireless packet communication device on the individual channel, and an individual channel packet transmission / reception control means for receiving a packet from the individual channel The dedicated channel packet receiving means for notifying the dedicated channel packet communication and the control signal transmitting / receiving means are instructed to start and end the dedicated channel packet communication. When the dedicated channel packet is transmitted, the dedicated channel packet transmitting means is notified of the dedicated channel packet transmission information. Channel Individual channel packet transmission / reception control means for performing packet reception processing when notified of packet reception from the packet reception means, wherein the common channel packet transmission / reception control means, when a common channel packet transmission request is generated, the transmission queue Queuing count is 0 (transmission queue is empty)
In the case of, the packet is transmitted to the wireless packet communication device on the common channel, and if the queuing number of the transmission queue is not 0, transmission information is queued in the transmission queue and the transmission information is queued on the common channel. Each time one packet transmission is completed, the transmission queue is monitored, and if there is queued transmission information, a packet is transmitted to the wireless packet communication device on the common channel, and queuing of the transmission queue is performed. A threshold that can be set in advance is provided for the number, and when the queuing number becomes equal to or larger than the threshold during the queuing, the queued transmission information is taken out and packet communication is performed to the wireless packet communication device on the dedicated channel. And a mobile packet communication system. 5. The wireless packet communication apparatus, when packet transmission information is queued in a transmission queue of a common channel, activates a timer using a timer value that can be set in advance for each transmission information, and when the timer expires. 2. A transmission means for extracting transmission information from the transmission queue and transmitting packets on an individual channel.
Alternatively, the mobile packet communication system according to claim 2. 6. When packet transmission information is queued in a transmission waiting queue of a common channel, a timer using a timer value which can be set in advance for each transmission information is started, and when the timer expires, the transmission information is held in the transmission waiting queue. 5. The mobile packet communication system according to claim 3, further comprising transmission means for taking out the packet from the queue and transmitting the packet on an individual channel. 7. The wireless packet communication apparatus adds mobile terminal identification information capable of identifying a mobile terminal performing packet communication to transmission information queued in a transmission queue of a common channel, and queues the transmission information in the transmission queue. Means for extracting packet information to be transmitted and performing packet communication by extracting the transmission information extraction order for each mobile terminal using the mobile terminal identification information when performing packet transmission on an individual channel. The mobile packet communication system according to claim 1, 2 or 5. 8. A wireless packet communication apparatus adds packet transmission class information to transmission information queued in a packet transmission queue of a common channel, extracts transmission information queued in the transmission queue, and individually extracts the transmission information. 2. A transmission / reception control means for weighting a transmission information extraction order when performing packet transmission on a channel by the packet transmission class information and setting a priority for individual mobile station switching for each mobile terminal. Claim 2
Alternatively, the mobile packet communication system according to claim 5. 9. The wireless packet communication device includes monitoring means for monitoring the amount of packet communication traffic on a common channel, and stores the number of times of switching between a common channel and an individual channel for each packet communication with a mobile terminal. Means for setting and storing a common channel return traffic amount threshold value in advance, and second threshold value storage means for setting and storing a channel switching frequency threshold value in advance. When the common channel return traffic amount threshold value or less, the mobile terminal performing the packet communication in the individual channel, among the mobile terminals, the number of times of channel switching is switched to the common channel mobile terminals of the channel switching number threshold or less, to perform packet communication And a packet communication means for performing the packet communication. Mobile packet communication system.