JP3432594B2 - Mobile communication terminal - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wireless communication system, and more particularly to a mobile communication system composed of a plurality of wireless base stations.

[0002]

2. Description of the Related Art In wireless communication, there is an advantage that the mobility of terminals is improved. Conventionally, PHS (Personal Hand) has been used as a communication network for providing communication services to portable terminals.
yPhone System) and tele terminals are known. In these communication networks, a wireless base station connected to a wired communication network wirelessly communicates with a terminal to realize mobility of the terminal. Further, since the range of the radio wave of the radio base station reaches is limited, a plurality of radio base stations are installed in the service area that provides the radio communication service in these systems. In such a mobile communication system in which a service area is formed by a plurality of wireless zones,
For example, a procedure in which the terminal receives packet data from the communication network will be described with reference to FIG. The terminal enters the wireless zone of the wireless base station and sends a packet data reception request,
Wait for the data to arrive at the wireless base station through the wired communication network. When the necessary data arrives at the wireless base station, the terminal receives it via the wireless line. At this time, if the terminal moves and the packet data cannot be received within the wireless zone of one wireless base station, the receiving request is transmitted again in another wireless zone, and then the data is received.
However, if the terminal keeps moving, if there is a large delay between the transmission of the reception request and the arrival of data,
There is a problem that the packet data cannot be received again in the wireless zone.

Further, navigation assisting devices have been conventionally used in order to efficiently operate a moving body such as an automobile.
In particular, in the case of a communication type navigation assistance device that obtains sequentially updated traffic information using communication, if the destination is input in advance, the traffic congestion situation at that time is taken into consideration,
Display the shortest time route to the destination, the required time and traffic jam information. The driver can reach the destination in the shortest time by following the designated route. Even when the above-mentioned wireless communication is performed from a mobile body equipped with this navigation assistance device, the packet data is requested, the data arrives at the wireless air base station, and the terminal receives the data to complete the communication. To do. For this reason, there is a problem in that packet data cannot be received in the wireless zone if the time for allocating channels when setting a connection for wireless communication is long or the delay until data arrives is large.

Further, in order to provide a wireless communication service such as a car telephone, which is widely used at present, in a wide service area, it is necessary to install a large number of wireless base stations, which requires a huge capital investment. For this reason, in reality, the service area is mainly limited to a range of locations such as urban areas and main highways. Further, in the above-mentioned PHS, the output of the radio wave between the radio base station and the terminal is limited to be lower than that of the mobile phone, so the radio wave reach of each radio base station is narrow and they are not necessarily arranged continuously. . As described above, in the conventional mobile communication system, the range position of the service area is limited, and when the terminal approaches the boundary of the service area or deviates from the service area, the wireless transmission quality is suddenly deteriorated or communication is disconnected. As a method to improve service for service users in such a situation, the terminal is provided with means for predicting that the terminal deviates from the service area, and when the deviation is predicted, the work of the service user is continued. Receive the information needed to do so from the network (already submitted a proposal for this idea)
Is being considered. However, even in this method, there is a problem that the amount of information that can be received from the communication network is limited when the moving speed of the terminal is high.

Further, as described above, in order to realize that the terminal receives the necessary information from the communication network when it is predicted that the terminal deviates from the service area, the prediction predicting that the terminal deviates from the service area. Means are needed. Although it is considered that this prediction means is installed in a terminal, it is difficult to reduce the size and cost of the terminal because the hardware and software related to the prediction are added.

In a mobile communication system such as a car telephone, whether or not the user is in the service area by periodically transmitting and receiving a control signal to and from the radio base station and measuring the electric field strength of the radio wave from the radio base station. Is detected and displayed on the terminal. However, when making a voice call with these systems, the communication processing function and information processing function required for one call are constant, but in a non-voice communication service, try making a call. There is a problem that the user cannot know the communication processing function or the information processing function that can be used unless it is used.

Further, in order to provide a communication service to a mobile body having a relatively high moving speed such as a car telephone, a handoff operation is required to switch a wireless line to a connection with another wireless base station during communication. . In order to realize this handoff operation, a function related to handoff control is required in the mobile communication system, which causes the system to become complicated and costly. On the other hand, in a system with a small wireless zone such as PHS, the number of terminals that can be accommodated in the entire system can be increased, but since handoff due to movement of terminals increases rapidly, a high-speed moving object such as an automobile can span wireless zones. Not suitable for wireless communication. As a system that realizes both high-speed mobile communication and an increase in the number of terminals that can be accommodated, as shown in FIG. 3, a layer in which a small wireless zone called a plurality of micro cells is covered with a relatively large wireless zone called a macro cell A method of allocating a wireless zone has been considered. In this method, a wireless base station that provides a macro cell is used for communication by a high-speed moving body that moves at high speed such as an automobile, and a wireless base station that provides a micro-cell is used for communication by a low-speed moving body that moves about the distance of walking. Connect wirelessly with the terminal. By using this method,
It is possible to accommodate a large number of terminals having various moving speeds without increasing the control load. However, in order to connect to a wireless base station that provides a large wireless zone, it is necessary to increase the output of radio waves. Especially in miniaturized terminals, the battery capacity is limited, so even if the amount of remaining power of the power source decreases when moving at high speed in an automobile, etc., connection is only allowed to a wireless base station that provides a large wireless zone, After all, communication may not be possible for the required time.

[0008]

Therefore, the first aspect of the present invention
The purpose of is to prevent the disconnection of the operation related to the information processing of the terminal in the high-speed wireless transmission, and to prevent the disconnection for a long time that may affect other terminals.

A second object is to efficiently receive data in another wireless zone even when the moving terminal cannot receive data in one wireless zone. Another object is to receive sufficient data to continue the work of the service user when the moving terminal deviates from the service area.

The third object is that, in the conventionally known mobile communication network, the range position of the service area is limited, so that the movement after the start of communication hinders the service to the user. There is. The present invention aims to improve the service to users in such a case.

[0011]

In order to achieve the above first object, the first configuration of the first invention of the present application is a wide beam transmission / reception that provides low speed wireless transmission mainly used for transmission of control signals. Apparatus, a wireless base station that provides higher-speed transmission than the wide beam transceiver, and includes at least a transmitter of spot beam transceivers that are mainly used for data transmission, and the wide beam transceiver In a wireless communication system composed of one or more terminal stations equipped with at least a receiving device among the spot beam transmitting / receiving devices, the terminal station disconnects the transmission during data transmission by spot beam wireless transmission. Disconnection detecting means for detecting a disconnection, a timer means for counting the duration of disconnection of the base station, and the terminal when the predetermined time is exceeded. Characterized by comprising a control means for switching the wide beam radio transmission between base station.

In the first configuration of the first aspect of the invention, the maximum allowable disconnection time is defined as the allowable disconnection duration time during which the operation related to information processing of the terminal does not stop due to disconnection, and the call from the terminal is called. At times, it is characterized by comprising means for reporting the allowable maximum disconnection time to the radio base station.

The second configuration of the first invention provides a wide beam transceiver which provides low speed wireless transmission mainly used for transmission of control signals, and a transmission which is faster than the wide beam transceiver. However, the wireless base station including at least a transmitting device among the spot beam transmitting / receiving devices mainly used for data transmission, the wide beam transmitting / receiving device, and at least the receiving device among the spot beam transmitting / receiving devices. In a wireless communication system composed of one or more terminal stations, the terminal station detects disconnection of the transmission during data transmission by spot beam wireless transmission, and an application program of the terminal due to disconnection. If it interferes with the operation, request the wireless base station to transmit the data using wide beam wireless transmission. Characterized by comprising a that control means.

Further, other respective constitutions of the first invention are as follows.

In the first or second configuration, a wide beam transceiver which provides low-speed wireless transmission mainly used for transmission of control signals and a transmission which is faster than the wide beam transceiver are provided. A radio base station comprising at least a transmitter of spot beam transceivers used for data transmission, and the wide beam transceiver,
In a wireless communication system including at least one terminal station having at least a receiving device among the spot beam transmitting / receiving devices, optical communication is used as a wide beam and radio wave communication is used as a spot beam. .

In the first or second configuration, a wide beam transceiver that provides low-speed wireless transmission mainly used for transmission of control signals and a transmission that is faster than the wide beam transceiver are provided. A radio base station comprising at least a transmitter of spot beam transceivers used for data transmission, and the wide beam transceiver,
In a wireless communication system including at least one terminal station having at least a receiving device among the spot beam transmitting / receiving devices, optical communication is used for a wide beam and a spot beam.

In the first or second configuration, a wide beam transceiver that provides low-speed wireless transmission mainly used for transmission of control signals and a transmission that is faster than the wide beam transceiver are provided. A radio base station comprising at least a transmitter of spot beam transceivers used for data transmission, and the wide beam transceiver,
In a wireless communication system including at least one terminal station having at least a receiving device among the spot beam transmitting / receiving devices, radio communication is used as a wide beam and optical communication is used as a spot beam. .

In the first or second configuration, a wide beam transceiver that provides low-speed wireless transmission mainly used for transmission of control signals and a transmission that is faster than the wide beam transceiver are provided. A radio base station comprising at least a transmitter of spot beam transceivers used for data transmission, and the wide beam transceiver,
In a wireless communication system including at least one terminal station including at least a receiving device among the spot beam transmitting / receiving devices, radio waves are used for the wide beam and the spot beam.

In order to achieve the above second object, the first configuration of the second invention of the present application is such that at least one or more radio base stations and a plurality of radio base stations communicate with each other by using a radio line. In a wireless communication system composed of
Before the terminal transmits or receives data, a request signal for transmitting or receiving the data is transmitted to the wireless base station in advance, and the wireless base station for transmitting or receiving the data based on the request signal and communication used It is characterized by comprising a communication schedule creating means for scheduling processing resources or information processing resources.

A second configuration of the second invention is a wireless communication including at least one wireless base station and a plurality of terminals for communicating with the wireless base station using a wireless line. In the system, a navigation assistance device in which route information and time information to the destination are instructed by inputting destination information of the destination to the terminal and the terminal based on the route information and time information. It is characterized by comprising a radio base station for transmitting or receiving data and a communication schedule creating means for scheduling communication processing resources or information processing resources to be used.

Further, other respective constitutions of the second invention are as follows.

In a wireless communication system composed of at least one or more wireless base stations and a plurality of terminals that communicate with the wireless base stations using wireless lines, the periphery of a service area that provides wireless communication services. Near or
A first radio base station installed near an entrance for a service user to enter and exit the service area performs wireless communication at a higher speed than at least a second radio base station installed in another service area portion. It is characterized in that it is equipped with a wireless device capable of performing.

In a wireless communication system composed of at least one or more wireless base stations and a plurality of terminals that communicate with the wireless base stations using wireless lines, the periphery of a service area for providing wireless communication services. Near or
When a wireless base station installed near a doorway where a service user enters and exits the service area performs wireless communication with the terminal, it is provided that the wireless base station is located at the outermost side of the service area. It is characterized by comprising a notification means for notifying a user.

[0024] The service user is composed of at least one or more wireless base stations and a plurality of terminals that communicate with the wireless base stations by using wireless lines. At least two types of communication processing functions or information processing functions are provided to service users. Means for notifying the service user of the communication processing function or the information processing function that can be used by the service user in a wireless zone in which communication with the wireless base station is possible. It is characterized by comprising a response means for responding to an inquiry from the user.

A wireless zone having a size of at least two or more, which is composed of a plurality of wireless base stations and a plurality of terminals that perform communication using wireless lines within a wireless zone capable of wireless communication with the wireless base stations. In a hierarchically arranged wireless communication system, based on a priority connection request signal transmitted by a terminal in which it is detected that the remaining amount of power source power has become equal to or less than a predetermined value, the terminal is preferentially Is provided with a priority connection control means for connecting to a wireless base station that provides a small wireless zone.

In order to achieve the above-mentioned third object, the first configuration of the third invention of the present application stores means for detecting self-position information and range position information of a service area in which a wireless communication service is provided. And a storage unit.

In the first configuration of the third aspect of the invention, a service area outside detecting means for detecting that the mobile communication terminal has deviated from the wireless communication service area, and
Means for notifying the user of the terminal.

Further, other respective constitutions of the third invention are as follows.

It is characterized by comprising means for detecting self-position information, means for inspecting the transmission quality of wireless communication, and storage means for storing the relationship between the position information and the transmission quality of wireless communication. To do.

Prediction means for predicting that the mobile communication terminal will go out of the service area in which the wireless communication service is provided, and predetermined when the mobile communication terminal is predicted to go out of the service area And a transmission control means for automatically transmitting data based on a procedure.

Prediction means for predicting that the mobile communication terminal will go out of the service area where the wireless communication service is provided, and the mobile communication terminal when the mobile communication terminal is predicted to go out of the service area. And a transmission control means for transmitting data based on an instruction from the user of the mobile communication terminal.

[0032]

In the wireless communication system of the first invention of the present application, stable data download can be performed without stopping some or all operations related to information processing even when the spot beam connection, which is high-speed wireless transmission, is disconnected. It is possible to do.

In the mobile communication system of the first configuration of the second invention of the present application, data transmission / reception can be scheduled in the communication network by transmitting a data transmission / reception request from the moving terminal in advance. This makes it possible to reliably send and receive data in the wireless zone.

In the mobile communication system having the second structure according to the second invention of the present application, data transmission / reception can be scheduled in the communication network based on the information input to the navigation assistance device and the output information from the navigation assistance device. . This makes it possible to reliably send and receive data in the wireless zone.

Further, in the mobile communication system of the third configuration of the second invention of the present application, it is necessary to reflect the work result of the service user or to continue the work when the terminal moves and deviates from the service area. It is possible to transmit and receive a sufficient amount of data to and from the terminal.

Further, in the mobile communication system having the fourth structure of the second invention of the present application, it is not necessary to equip the terminal with means for predicting communication disconnection due to departure of the terminal from the service area. And cost reduction can be achieved.

In the mobile communication system having the fifth configuration of the second invention of the present application, the communication processing function or the information processing function usable by the service user is displayed on the terminal and the inquiry from the service user is answered. As a result, it becomes easy for the service user to select a necessary function from the communication processing function or the information processing function provided to the service user for communication.

Further, in the mobile communication system having the sixth structure of the second invention of the present application, the transmission power of the terminal is reduced even when communicating with the terminal in which the remaining power amount of the power supply is reduced during high speed movement. Since it can be kept low, the callable time can be extended.

In the mobile communication terminal having the first configuration of the third invention of the present application, it is possible to grasp the relative relationship between the position of the mobile communication terminal and the position range of the service area.

Further, in the mobile communication terminal of the second configuration of the third invention of the present application, when the mobile communication terminal deviates from the service area, the service user can promptly determine the optimum moving direction for entering the service area again. And it can be grasped easily.

Further, in the mobile communication terminal having the third structure of the third invention of the present application, it is possible to estimate the relationship between the position of the mobile communication terminal and the transmission quality when communication is performed at that position.

Further, in the mobile communication terminal having the fourth structure of the third invention of the present application, information necessary for the service user to continue the work is provided to the service user before the mobile communication terminal goes out of the service area. Can be incorporated into mobile communication terminals without being aware of it.

Further, in the mobile communication terminal of the fifth configuration of the third invention of the present application, it is possible to notify the service user to that effect before the mobile communication terminal goes out of the service area,
At this time, the information necessary for the service user to continue the work can be incorporated into the mobile communication terminal based on the user's instruction.

[0044]

FIG. 1 shows an embodiment of a wireless communication system according to the first invention of the present application. The radio base station 10 transmits a control signal to the terminal station 2, the terminal station 3 and the terminal station 4 located within the wide beam 1 by the wide beam 1, and the terminal beam 2 is transmitted by the spot beam 5, the spot beam 6 and the spot beam 7, respectively. , Data transmission to the terminal station 3 and the terminal station 4. On the other hand, the terminal station 2, the terminal station 3, and the terminal station 4 transmit the control signal and the data to the radio base station 10 with the wide beam 1.
By. Here, it is possible to use either light or radio waves for both the wide beam and the spot beam. When the terminal is disconnected while receiving the data by the spot beam, it waits for a predetermined time and switches to the data transmission by the wide beam 1.

2 and 3 show examples of the configurations of the terminal station and the radio base station in the case of using radio wave communication for the wide beam and the spot beam, respectively.

In FIG. 2, 21 is a spot beam antenna, 22 is a wide beam antenna, 23 is a wide beam transmission / reception common circuit, 24 is a spot beam receiving device,
Reference numeral 25 is a wide beam transmitter, 26 is a wide beam receiver, 27 is a disconnection / disconnection recovery detection circuit, 28 is a control circuit, and 29 is a terminal.

In FIG. 3, 11 is a wide beam antenna, 12 is a spot beam antenna, 13 is a wide beam transmission / reception common circuit, 14 is a wide beam receiving device, 1
Reference numeral 5 is a wide beam transmitter, 16 is a spot beam transmitter, 17 is a disconnection / disconnection recovery notification detection circuit, 18 is a control circuit, 19 is a timer, and 100 is a central controller.
The central controller 100 is connected to the network.
Here, the spot beam antenna and the wide beam antenna are separately configured, but it is also possible to use one antenna. In that case, further miniaturization becomes possible.

Radio waves are likely to be diffracted, and by using radio waves as a wide beam, it is possible to communicate even in the presence of some obstacles. Since communication requires more power, it is possible to reduce power consumption by using radio waves for both wide beam and spot beam.

FIG. 4 and FIG. 5 respectively show one embodiment of the configurations of the terminal station and the radio base station when optical communication is used for the wide beam and the spot beam.

FIG. 4 shows the beam antenna 2 in FIG.
1 is replaced by a spot beam receiver 30, and the wide beam antenna 22 and the wide beam transmission / reception common circuit 23 are replaced by a wide beam transmission / reception common circuit 31.

In FIG. 5, the spot beam antenna 12 is replaced with a spot beam transmitter 32, and the wide beam antenna 11 and the wide beam transmission / reception common circuit 13 are replaced with a wide beam transmission / reception common circuit 31 in FIG. .

Since light is easier to shield than radio waves, it is possible to easily use it in a limited space such as a room by using optical communication as a wide beam. In addition, light has excellent straightness and directivity, and it is easier to narrow the beam width than radio waves, so it is easy to form a spot beam and the direction of the spot beam can be set freely and clearly. is there.

FIG. 6 and FIG. 7 respectively show an embodiment of the configuration of a terminal station and a radio base station when radio wave communication is used as a wide beam and optical communication is used as a spot beam.

In FIG. 6, the spot beam antenna 21 in FIG. 2 is replaced with a spot beam light receiver 30.

In FIG. 7, the spot beam antenna 12 in FIG. 3 is replaced by a spot beam transmitter 32.

Since radio waves are likely to be diffracted, it is possible to communicate even if some obstacles exist by using radio waves as a wide beam. Since communication requires higher power, it is possible to reduce power consumption by using radio waves. In addition, light has excellent straightness and directivity, and narrowing the beam width is easier than radio waves, so it is easy to form a spot beam and the direction of the spot beam can be set freely and clearly. Is.

FIG. 8 and FIG. 9 respectively show an embodiment of the configuration of the terminal station and the radio base station when optical communication is used as a wide beam in which light is diffused and radio wave communication is used as a spot beam. Is.

In FIG. 8, the spot beam antenna 22 and the wide beam transmission / reception common circuit 23 in FIG. 2 are replaced with a wide beam transmission / reception common circuit 31.

In FIG. 9, the wide beam antenna 11 and the wide beam transmission / reception common circuit 13 in FIG. 3 are replaced with a wide beam transmission / reception common circuit 31.

Since light is shielded more easily than radio waves, it is possible to easily use it in a limited space such as a room by using optical communication as a wide beam. Further, in order to obtain the same beam width and transmission distance, optical communication requires more power, and by using radio wave communication as a spot beam, power consumption can be reduced.

In the above-mentioned embodiment, 31 common circuits for transmitting and receiving light can be divided into a light transmitting device and a light receiving device. In that case, since it is easy to implement hardware, it can be configured at low cost.

FIG. 10 is an explanatory diagram showing an embodiment of the operation when the radio base station side controls the switching of data transmission from the spot beam to the wide beam. Terminal 29
When setting up the spot beam connection, the control information including its own ID number is passed to the control circuit 28, the wide beam transmitting device 25, the wide beam transmitting / receiving common circuit 23, and the wide beam antenna 22 to control the radio base station. Send as a signal. When the control signal is received by the wide-beam antenna 11 of the wireless base station, it passes through the wide-beam transmission / reception shared circuit 13, the wide-beam receiving device 14, the disconnection / disconnection recovery notification detection circuit 17, and the control circuit 18, and then the central control device 100. Reach Then, the wireless base station performs frequency allocation and position registration of the terminal station by using, for example, spot beam polling. As a result, the spot beam connection is set up, and the data sent from the network by the central control device 100 to the terminal 29 is passed to the control circuit 18 and transmitted to the terminal station via the spot beam transmitter 16 and the spot beam antenna 12. To be done. The terminal station receives this data by the spot beam antenna 21, and the data is passed to the terminal 29 via the spot beam receiving device 24, the disconnection / disconnection recovery detection circuit 27, and the control circuit 28. In the terminal station, the disconnection / disconnection recovery detection circuit 27 detects disconnection while receiving the spot beam. When the disconnection is detected, the disconnection is notified to the control circuit 28, and the control circuit 28 sends a disconnection notification including the information indicating the last received data to the wide beam transmission device 25, and the wide beam transmission / reception common circuit and the wide beam antenna. A disconnection notification is sent to the wireless base station via 22. In the wireless base station, the disconnection / disconnection recovery detection circuit 17 detects this disconnection notification and notifies the control circuit 18. Then, the control circuit 18 activates the timer 19 and issues a command to the central controller 100 to stop the data transmission by the spot beam. Instead, the control circuit 18 periodically sends out a beacon containing the ID number of the terminal 29 by the spot beam. The terminal station continues to receive the spot beam and waits for connection recovery. Then, when the activated timer reaches a predetermined time, the control circuit 18 passes a control signal for starting the data transmission by the wide beam to the central control unit 100, and this control signal is also transmitted to the terminal station by the wide beam. To be done. When the terminal station receives the control signal, the wide beam connection is set up, and the radio base station starts transmission from the data next to the data last received by the terminal by the wide beam. When the terminal station receives the beacon by the spot beam and the disconnection / disconnection recovery detection circuit 27 detects the recovery, the disconnection recovery is notified to the control circuit 28, and the control circuit 28
Sends a disconnection recovery notification including a signal indicating the data last received by the wide beam by the wide beam. The wireless base station disconnects the disconnection recovery notification and disconnection recovery notification detection circuit 1
7, the disconnection recovery notification is passed to the control circuit 18, and the control circuit 18 stops the beacon transmission and the data transmission by the wide beam, and transmits the data next to the data last received by the terminal station by the spot beam. After restarting, the terminal station receives data by the spot beam.

In the above embodiment, when the beacon is received and the disconnected state is recovered before the time obtained by subtracting a minute time from the maximum allowable disconnection time, the terminal station notifies the disconnection recovery by the wide beam, and the wireless base station Restarts data transmission by spot beam.

In the above embodiment, when the wireless base station receives the disconnection notice, the wireless base station establishes a wide beam connection in parallel with the beacon transmission by the spot beam without starting a timer and waiting for a predetermined time. It is also possible to set and transmit data by a wide beam. This allows data to be transmitted earlier than when waiting for a predetermined time.

When setting the spot beam connection, the terminal 29 sends a control signal containing its own ID number and the maximum allowable disconnection time to the radio base station, and waits for a predetermined time when disconnecting the spot beam. Alternatively, a time obtained by subtracting a minute time from the maximum allowable cutting time can be used as a reference for switching from the spot beam to the wide beam. The maximum allowable disconnection time is a value determined by the application program of the terminal, and is the allowable disconnection duration time during which the operation of the application program does not stop due to disconnection. The terminal 29 has a table of maximum allowable disconnection times for each application program. In this case, the radio base station can switch the radio circuit without affecting the operation of the application program.

FIG. 11 is an explanatory view showing an embodiment of the operation when the terminal station side controls the switching of the data transmission from the spot beam to the wide beam. When setting the spot beam connection, the terminal 12 transmits a control signal including the ID number of the terminal 12 to the wireless base station by the wide beam. The radio base station receives this control signal, sets the spot beam connection, and then starts transmitting data by the spot beam. The terminal station detects the disconnection while receiving the spot beam. When the terminal station detects the disconnection, the terminal 29 waits a time obtained by subtracting a minute time from the maximum allowable disconnection time, and when the time elapses, includes the information indicating the last received data, and transmits the data from the spot beam to the wide beam. Control circuit 2 for switching instructions
8 and sends it to the radio base station by the wide beam.
When the wireless base station receives this command, it stops transmitting the data by the spot beam and periodically starts transmitting a beacon, and starts transmitting by the wide beam from the data next to the data finally received by the terminal 29. When the terminal station receives the beacon and recovers from the disconnected state, the terminal 29 notifies the disconnection recovery by the wide beam and the wireless base station restarts the data transmission by the spot beam as in the above-described embodiment. In this way, when the terminal controls the data transmission from the spot beam to the wide beam, it is not necessary to notify the wireless base station of the allowable maximum disconnection time, and the terminal itself interferes with information processing operations. It becomes possible to make a switching request only to.

Next, an embodiment of the second invention of the present application will be described.

FIG. 12 shows an embodiment of the first structure of the second invention of the present application. In the embodiment shown in FIG. 12, a first wireless zone for transmitting and receiving signals and a first wireless base station 201 constituting the same, and a second wireless zone for transmitting and receiving data and a first wireless zone for configuring the same. 2 wireless base stations 202
, A wired communication network 203 that connects wireless base stations, a communication schedule creation unit 204 that is connected to the wired communication network, and a mobile terminal 205. The embodiment will be described in detail with reference to FIG.

When the terminal 205 transmits / receives packet data, it transmits a request signal indicating the desired location and time of data transmission / reception using the control channel of the nearest wireless zone. At this time, it is also possible to describe in the request signal the information explicitly designated by the service user as to which base station the wireless zone of which the packet data is transmitted and received. When the wireless base station closest to the terminal receives the request signal, it requests the communication schedule creating means to create a schedule for data transmission and reception. The communication schedule creating means transmits a reception signal to the terminal via the wireless base station after securing communication processing resources and information processing resources required for communication. At this time, if it is impossible to secure the communication processing resources or information processing resources necessary for communication, an unacceptable signal is sent to the terminal, and the terminal that receives this repeats the request signal again. When the terminal moves to the scheduled wireless zone, it sends and receives packet data. By thus scheduling the packet data transmission and reception, it is possible to effectively use the communication processing resources and the information processing resources, and it is possible to improve the efficiency of the communication processing and information processing operations in the terminal.

Since it is desirable that the above-mentioned request signal is transmitted promptly after a call is generated, the control channel needs to be capable of wireless connection over a wide range. On the other hand, since the information amount of the request signal is smaller than the information amount of the data, the transmission rate may be lower than the transmission rate of the data. Therefore, as the control channel in this embodiment,
For example, PDC (Personal Digital) mainly for voice calls
Communication) and PHS and other narrow band mobile communication networks can be implemented using the data channel or common control channel.

Alternatively, as shown in FIG. 13, a spot beam that provides high-speed wireless transmission and a wide beam that provides low-speed wireless transmission over a wider area than the spot beam are hierarchically configured. In the wireless communication system, the wide beam can be used for transmitting and receiving the request signal and the reception signal described above, and the spot beam can be used for transmitting and receiving the packet data. Since the spot beam in this embodiment has a narrow beam width, it can reduce the influence of multipath and is suitable for high-speed wireless transmission. Since frequency resources for performing high-speed wireless transmission can be space-divided and used, frequency resources can be effectively used. Also, for data communication using a portable and lightweight terminal, the spot beam is rarely generated in the terminal side, so the spot beam is transmitted in one direction from the wireless base station to the terminal. It may be carried out only. When performing high-speed wireless transmission, the power consumption of the transmitter is much higher than the power consumption of the receiver that performs high-speed wireless transmission and the power consumption of the transmitter or receiver that performs low-speed wireless transmission. By using only reception for wireless transmission, power consumption can be suppressed.

At this time, an appropriate scheduling method for transmitting / receiving data to / from the radio base station differs depending on how the radio base station is arranged and the communication network is used. For example, FIG. 14 shows a case where data is transmitted to a terminal that is moving in a car that travels on a road. In this case, the data transmitted by the data transmission source is divided in advance into a size that allows the terminal to be received by one radio base station, and the data is transmitted to the radio base station based on the order in which the mobile unit advances. The wireless base station stores the received data in a buffer. At this time, the same data may be redundantly transmitted to a plurality of wireless base stations forming a wireless zone where the mobile unit is scheduled to pass. Then, when the mobile body passes through the wireless zone, the data accumulated in the buffer is received using the wireless line. If the wireless zone to pass next is known in advance, such as a car passing through an expressway, the wireless zone through which the terminal passes after the wireless zone that receives the data reception request signal from the terminal is configured. It may be implemented to transmit data to the wireless base station. With this method, it is not necessary to execute a complicated schedule creating procedure by the communication schedule creating means, so that the configuration can be simplified.

It is also possible to provide the above-mentioned control channel in, for example, a train or a shared bus, and to install a radio transmitter for providing high-speed data transmission at a place where service users gather such as a station shop or a ticket gate. In this embodiment, if the advertisement printed matter suspended in the car is read and the related information is desired to be provided, a request signal for data reception is transmitted through a relatively low speed wireless line provided in the car. Make a reservation for reception. At this time, the transmission of the reception request signals from a plurality of service users is temporally dispersed, so that the existing random access method can also be realized. Then, when getting off the train, the data of newspapers and magazines is received by a high-speed wireless line arranged in the vicinity of a shop or the like. At this time, the communication schedule creating means makes a schedule in advance for each terminal to receive the data. When there are a plurality of request signals for receiving the same data such as newspapers, the data is transmitted to a plurality of terminals that have made a request by multicast wireless transmission. This makes it possible to effectively use wireless resources and reduce the waiting time for service users.

FIG. 15 shows an embodiment of the second construction of the second invention of the present application. In the embodiment shown in FIG. 15, the navigation assisting device mounted on the terminal inputs the means for inputting information such as the destination and the current location or the waypoint, the self-position detecting means for detecting the position of the terminal, and the road map. It comprises a geographical information storage means for storing information and the like, a calculation means for calculating navigation assistance information, and a display means for displaying information to a service user. Furthermore, the communication-type navigation assistance device receives information such as traffic congestion status in real time from a database connected to the communication network via communication means, so that the average operation until reaching the destination is achieved. You can guess speed and time. The embodiment will be described in detail with reference to FIG.

When the terminal transmits and receives packet data, the operation schedule information of the terminal obtained from the navigation assistance means is added using the control channel of the nearest wireless zone.
Send a request signal for transmission and reception. When the wireless base station closest to the terminal receives the request signal, it requests the communication schedule creating means to create a schedule for data transmission / reception based on the operation schedule information of the terminal. The communication schedule creating means transmits a reception signal to the terminal via the wireless base station after securing communication processing resources and information processing resources required for communication. When communication is scheduled, securing a wireless channel between the wireless base station and the terminal in advance,
A communication network side node or the like secures a memory area for storing connection information for connection setting. At this time, reserve not only wireless communication resources but also wired network communication processing resources and information processing resources for high-speed data transfer. At this time, secure communication processing resources or information processing resources necessary for communication. If it is impossible, the terminal transmits an unacceptable signal to the terminal, and the terminal which receives this signal repeats from transmitting the request signal. When the terminal moves to the wireless zone where it is scheduled to pass, packet data is transmitted and received. By scheduling packet data transmission and reception in this way,
The communication processing resources and the information processing resources can be effectively used, and the communication processing and information processing work in the terminal can be made more efficient.

FIG. 15 shows an embodiment in which the navigation assistance device is mounted on the terminal side. The terminal detects the position of the terminal and the input means for inputting information such as the destination and the current location or the waypoint. A navigation assistance device including a self-position detecting means, a display means for displaying information to a service user, and geographical information storage means for storing road map information and the like, and a computing means for calculating navigation assistance information are provided. Implementations connected to a wired communication network are also possible. This method requires communication processing resources for communicating destination and current position information and information required for display on the terminal using the control channel described above, but the terminal has a function for navigation assistance. Since the terminal does not need to be installed, the terminal can be downsized, and the navigation assistance device connected to the communication network can be shared and used by service users.

FIG. 16 shows an embodiment of the third structure of the second invention of the present application. The wireless zone in the embodiment shown in FIG.
It is composed of a low-speed wireless zone which is arranged indoors and provides low-speed wireless transmission, and a high-speed wireless zone which is arranged near a door to exit the room to a corridor and which provides high-speed wireless transmission.
FIG. 17 shows an example of the third configuration of the second invention of the present application.
The wireless zone in the embodiment shown in FIG. 17 is arranged at the intersection of the low-speed wireless zone arranged in the service area for providing low-speed wireless transmission, the boundary of the service area and the road passing therethrough. It consists of a high-speed wireless zone that provides high-speed wireless transmission. The embodiment will be described in detail with reference to FIGS. 16 and 17.

Of the boundaries of the wireless communication service area and the areas of the wireless zones connected to the same subnet, the parts that the mobile terminal passes through are, for example, outdoors road parts or entrances to buildings. However, in the case of indoors, it is a limited place in actual operation, such as doors of entrances and exits of rooms, elevators, stairs and corridors. By installing a wireless base station equipped with a wireless device that can perform wireless transmission at a higher speed than at least other wireless zones in these parts, the mobile area of the wireless zone connected to the service area or the same subnet as the terminal moves. Before leaving the area, it is possible to perform high-speed wireless communication required for continuing work or shifting to another work. This can increase the amount of data that can be transmitted and received between the terminal and the communication network in a limited time. At this time, at least high-speed wireless transmission can be performed so that the terminal can receive the data necessary for performing the information processing work outside the service area or the wireless zone area connected to the same subnet via the communication network. A wireless base station equipped with a transmitter may be installed. Furthermore, if both the transmitter and receiver capable of high-speed wireless transmission are provided in the above-described wireless base station, after the information stored in the temporary storage means is transmitted to the communication network during processing on the terminal side. When the terminal receives the information from the communication network, the latest information can be stored in the storage means via the communication network and the information after the change can be received. This allows
It is possible to prevent unnecessary work, such as the need for the latest change history disappearing and work using old information that does not have consistency.

FIG. 18 shows the arrangement of wireless zones near the boundary of the service area in the fourth embodiment of the second invention of the present application, and FIG. 19 shows the contents of the boundary notification signal of the embodiment of the fourth invention of the present application. ing. In the embodiment shown in FIG. 18, a radio base station installed at the intersection of a service area boundary and a road passing through the service area is located outside the service area. A notification means for notifying the service user is provided. The embodiment will be described in detail with reference to FIGS. 18 and 19.

As described above, in the boundary portion of the wireless communication service area and the area of the wireless zone connected to the same subnet, the portion that the mobile terminal passes through is a place that is practically limited. Has become. In these parts, when the notification means provided in the wireless base station installed receives a certain control signal such as a data transmission / reception request signal or a location registration request from the terminal at a certain time, the wireless base station is notified of the service area. A boundary notification signal for notifying that it is a boundary is transmitted. Boundary notification is performed, for example, in FIG.
It is also possible to set a flag which is the boundary of the service area in the control signal or pilot signal from the wireless base station as shown in FIG. In this method, it is not necessary to transmit the boundary notification signal only to notify the boundary, so that the control channel can be effectively used. As another example, it is also possible to detect the boundary of the service area from the base station ID received from the wireless base station. In this method, the terminal has a table that stores the IDs of all the wireless base stations installed at the boundary of the service area, or determines the ID when assigning the IDs to the wireless base stations installed at the boundary of the service area. To use a specific algorithm.

By constructing the mobile communication system as shown in this embodiment and adding a means for detecting the notification of the boundary at the terminal, the wireless communication connected to the service area or the same subnet by moving the terminal. Before it deviates from the zone area, it is possible to know that the terminal has come near the boundary of the service area, so at this time, perform the wireless communication necessary for continuing work or shifting to other work. You can In this method, the terminal does not have to be equipped with a means for detecting its own position, so that the cost increase of the terminal can be suppressed. Also, when a terminal detects a boundary notification, the information owned by the service user who is using the terminal, for example, the information stored in the storage device in which the work data of the service user is stored, is automatically transmitted to the wireless device. It is also possible to implement an instruction signal to be transmitted to the base station via the communication network.
With this method, when a request signal for reception is transmitted from the terminal to the wireless base station, the wireless base station can take out the necessary data from the buffer and transmit it over the wireless line. Can be reduced.

FIG. 20 shows an embodiment of the fifth constitution of the second invention of the present application. In the embodiment shown in FIG. 20, a reception unit 211 that receives information on a communication processing function or an information processing function provided to a service user, a display unit 212 that notifies the service user of the received information, and a service. An input unit 213 for inputting a user's instruction, and a control unit 214 for controlling the terminal based on the input instruction and the received information.
And a transmission unit 215 that transmits an instruction input by the service user or an instruction from the control unit 214. The embodiment will be described in detail with reference to FIG.

As an example of a plurality of communication processing functions provided to a service user, there are cases where high-speed wireless transmission and low-speed wireless transmission are provided as described above, and each wireless zone is located in a different range position. is there. In this example, whether or not each wireless transmission is provided by the wireless receiver is detected constantly or at regular intervals, and the speed of the wireless transmission provided at that position is displayed. As an example of the display, a specific sound is emitted when the terminal enters the area where high-speed wireless transmission can be performed, or the display blinks, or the display is turned on or the display color is changed in the area where high-speed wireless transmission is possible, Depending on the transmission speed in that area, it is possible to carry out work that can be executed next and a menu for selecting commands to increase. Conversely, when moving to an area where high-speed wireless transmission is not possible but low-speed wireless transmission is possible, a warning sound is emitted.
The display color can be changed, and the next work that can be performed and the command selection menu can be reduced.

If high-speed wireless transmission is not provided, the entire data processed by the terminal cannot be transmitted in a short time. Therefore, the communication protocol and the processing procedure are set by the user according to the communicable speed. It is also possible to carry out the instruction or change automatically. For example, when high-speed wireless transmission is possible, the terminal receives the entire data from the storage device that stores the data. Every time the terminal changes the data, the entire data is sent, the information content of the storage device is changed, and the data is sent again for confirmation. If high-speed wireless transmission is not possible, only the change history information of the data is sent and received sequentially, and the entire text is checked on the terminal side / storage device side to check that the consistency of both data is maintained at regular intervals. Send to one of them for inspection.

When FAX communication or data communication is performed by the PDC, a data transmission protocol corresponding to each communication type is used. In the terminal, the service users prepare and use the communication processing functions that execute those protocols, but the wireless base station has a plurality of those communication processing functions, and the service users share the communication processing functions in common. To use. For this reason, in such a mobile communication system, even if the wireless resource between the terminal and the wireless base station can be secured, communication cannot be performed unless these communication processing functions are available. In order to explicitly notify the service user of this, for example, it is detected at regular time intervals whether or not there is a communication processing function for executing the FAX protocol, and information is transmitted to the terminal. The receiving terminal can notify the service user by displaying the availability of this communication processing function.

FIG. 21 shows the fifth embodiment of the second invention of the present application. The terminal of the embodiment shown in FIG. 21 includes a receiving unit 211 that receives information on a communication processing function or an information processing function provided to a service user, and an input unit 213 that inputs an inquiry or an instruction from the service user. From the response means 216 for responding to the inquiry from the service user, the control unit 214 that controls the terminal based on the input instruction and the received information, and the instruction and control unit input by the service user. 215 for transmitting the instruction of
Composed of and. The embodiment will be described in detail with reference to FIG.

Examples of a plurality of communication processing functions and information processing functions provided to the service user are the same as those in the above-described embodiment, but when the service user is a program such as software, the program confidence It is possible to grasp the communication processing function or information processing function that can be used by the user, and describe in the program the operation procedure for selecting and using an appropriate communication processing function or information processing function according to the situation. When the program needs to know the communication processing function and the information processing function provided to the service user, the program makes an inquiry to the response means. In response to this, the response means responds with information about the communication processing function and the information processing function that can be provided to the service user in that situation. In this case, the receiving unit and the response unit receive information regarding a plurality of communication processing functions and information processing functions provided to the service user at regular intervals or whenever there is a change or change, store the information, and make an inquiry. When there is, the information can be returned to the program. This method has an advantage that information can be immediately returned to the inquiry from the program.
Further, when an inquiry from the program occurs, information about a plurality of communication processing functions and information processing functions provided to the service user may be received and the information may be responded to. This method has an advantage that it is not necessary to receive information and store it in advance, so that a storage means is not necessary and that communication can be performed only when information is needed, so that the communication path can be effectively used.

FIG. 22 shows a sixth embodiment of the second invention of the present application. The terminal shown in FIG. 22 includes a communication unit 221, which is a wireless transceiver, a power supply battery 222 that drives electronic circuits such as a wireless receiver, a power amount detection unit 223 that detects the remaining power amount of the power supply battery, and Control means 22 for controlling
4 and. In addition, the wired communication network 203 has a plurality of radio base stations 231 that provide macro cells, a plurality of radio base stations 232 that provide micro cells, and control for preferential connection to terminals with a small amount of remaining power in the power supply battery. The priority connection control means 233 for executing the procedure is connected. The hierarchical arrangement method of macro cells and micro cells is the same as the known example shown in FIG. Here, a detailed description of the embodiment will be given with reference to FIG.

In the wireless zones arranged hierarchically as shown in FIG. 23, the wireless base station which provides the small wireless zone under the same conditions except the power consumption related to the wireless transmission in the wireless zones of either layer. When power consumption for communication processing and information processing such as wireless high frequency output and communication channel coding and information source coding is small compared to the case where the same user data is transmitted and received between the two Control is performed for a terminal with a small amount of remaining power in the battery to preferentially connect to a wireless base station provided by a small wireless zone regardless of the moving speed of the terminal. For this reason, at the time of handoff or at regular intervals, the terminal is inquired about the remaining power amount of the power supply battery or the terminal reports it. When it is detected that the remaining power amount of the power supply battery of the terminal connected to the wireless base station that provides a large wireless zone due to high-speed movement is detected, the priority connection control means is based on the report. A connection permission is transmitted to a wireless base station that provides a small wireless zone to the terminal. The terminal can switch to the connection with the wireless base station and lower the high frequency transmission output to suppress power consumption. In this implementation, in order to prevent false reporting such as the terminal reporting the remaining power amount of the power supply battery too low, a penalty such as lowering the connection priority at the time of communication from the next time is given to the terminal that was once prioritized. It is also possible to carry out.

FIG. 24 shows an embodiment of the first configuration of the third invention of the present application. In the embodiment shown in FIG. 24, the position information detecting means 301 for detecting the self position information of the mobile communication terminal.
A reception means 302 for receiving range position information of a service area in which a wireless communication service is provided from a communication network, a storage means 303 for storing the received information, a current position of the mobile communication terminal and a range position of the service area. And a display unit 305 for displaying the obtained correspondence relation. The embodiment will be described in detail with reference to FIG.

As means for detecting the self-position information of the mobile communication terminal, there are a GPS for calculating latitude / longitude / altitude from navigation information received from a plurality of GPS satellites, and a radio beacon signal transmitting station using infrared rays or radio waves. For example, a method of arranging a large number so as to form coordinates as shown in FIG. 25 and obtaining position information from a beacon signal received from the nearest transmitting station can be implemented. The cost of the radio beacon transmission station can be reduced by sharing it with the radio beacon transmission station used in a traffic control system or the like.

On the other hand, as a means for the mobile communication terminal to obtain the range position information of the service area where the wireless communication service is provided, the range position information of the service area is previously stored in an exchangeable storage medium such as a CD-ROM or a magnetic tape. A method for storing and selecting the appropriate medium to obtain the necessary information, or using the wireless communication from the database connected to the communication network via the wireless base station to appropriately obtain the range position information of the neighboring service area Implementation of the receiving method is possible. When using communication, it is not necessary for the mobile communication terminal to store the entire range position information of the service area, so that the size and weight can be reduced. Further, as shown in FIG. 24, the mobile communication terminal may be equipped with a storage unit 303 that temporarily stores the range position information of the service area received from the reception unit 302 using communication. In this case, it is possible to share the receiver equipped with the mobile communication terminal for receiving information such as voice and the receiving means for receiving the range position information of the service area, and only by adding a small capacity storage means. good.

Then, the corresponding means compares the positional information obtained from the positional information detecting means and the storage means and the range positional information of the service area with coordinated numerical values such as latitude / longitude / altitude and the corresponding relations. The calculation is performed and the display means displays what kind of positional relationship the current position of the mobile communication terminal has with the service area in a form such as a map drawing that is easily understood by the user. As a result, the user can predict that the mobile communication terminal will approach the boundary of the service area, recognize the service area to which the mobile communication terminal will move, and predict.

Further, as shown in FIG. 26, a storage means for storing the range position information of the service area and a corresponding means may be connected to the communication network. The mobile communication terminal shown in FIG. 26 has an antenna 311 for inputting and outputting a high frequency signal.
, A transmission / reception duplexer 312, wireless transmitters / receivers 313a and 313b including wireless modulators / demodulators, a control unit 314 for instructing channel switching, and encoding / source channel coding / channel coding. Decoding section 315a, b, voice input / output section 316a, b for voice call, and position information detecting means 318 for detecting self position information of the mobile communication terminal.
And display means 317 for displaying the obtained correspondence. In this case, the self-position information detected by the position information detecting means 318 is transmitted to the corresponding means 321 via the wireless base station 320. On the other hand, the coordinator 321 appropriately receives the range position information of the service area from the memory 323 connected to the communication network 322, calculates the corresponding relationship from the position information received from the mobile communication terminal, and outputs the result to the radio base station. To the mobile communication terminal via. In the mobile communication terminal, the received correspondence is displayed on the display means in a form that is easy for the user to understand how the current position of the mobile communication terminal is in relation to the service area. The mobile communication terminal of this example only needs to have the position detecting means and the displaying means added to the functions conventionally provided.

FIG. 27 shows an embodiment of the second structure of the third invention of the present application. In the embodiment shown in FIG. 27, the position information detecting means 331 for detecting the self position information of the mobile communication terminal.
A storage unit 332 for storing range position information of a service area where the wireless communication service is provided; a correspondence unit 333 for obtaining a correspondence relationship between the current position of the mobile communication terminal and the range position of the service area; A motion detecting means 334 for detecting a moving direction and a speed, and a service area outside detecting means 33 for detecting that the mobile communication terminal has gone out of the service area and predicting that the mobile communication terminal will go out of the service area.
5 and notification means 336. The embodiment will be described in detail with reference to FIG.

Similar to the embodiment of the first configuration of the third invention of the present application, the corresponding means compares the position information of the mobile communication terminal obtained from the position information detecting means with the range position information of the service area obtained from the storing means. Then, the correspondence is calculated. The out-of-service-area detecting unit detects that the mobile communication terminal deviates from the service area by recognizing that the mobile communication terminal is not in the service area from the positional relationship between the service area and the mobile communication terminal. Furthermore, not only the self-location information of the mobile communication terminal, but also the movement direction, speed, acceleration, etc. are detected by the motion detection means, and by using these information, it is possible to predict that the mobile communication terminal will deviate from the service area. When the mobile communication terminal deviates from the service area, it becomes possible to calculate an appropriate direction and distance for returning to the service area. As a method for detecting the motion information of the mobile communication terminal, for the moving direction, for example, a geomagnetic sensor is used, or an incident angle of sunlight is detected by an optical sensor and combined with time information. The speed can be detected, for example, by physical changes in the structure such as the rotation of automobile tires, the method of measuring the Doppler frequency deviation of the above-mentioned radio beacon or radio waves from a radio base station, optical loop gyro, etc. It can also be calculated from the acceleration obtained by the acceleration sensor using the gyro technology. Then, by displaying such information on the mobile communication terminal in a form such as a map drawing that is easy for the user to understand, it is possible to predict that the user is not in the service area where the communication service is provided, and that the deviation from the service area is predicted. I can inform you. For example, on the display means of the mobile communication terminal, an arrow indicates the direction in which to proceed in order to perform communication again, the color of a part of the contents of the displayed map information is changed, the display is blinked, or the progress is made. It is possible to give a voice or image instruction to return to the opposite direction.

FIG. 28 shows an embodiment of the third construction of the third invention of the present application. In the embodiment shown in FIG. 28, an antenna 341 for inputting / outputting a high frequency signal and a transmission / reception duplexer 342.
And a wireless transmitter / receiver 343 including a wireless modem and the like.
a, b, and a transmission quality measuring unit 3 for measuring the quality of wireless transmission
44, and a control unit 345 that indicates channel switching, etc.
And encoding / decoding units 346a and 346b for performing source coding and communication channel coding, voice input / output units 347a and 347b for voice communication, and a position for detecting self-position information of the mobile communication terminal. The information detecting means 348, the storage means 349 for storing the relationship information between the position information and the quality of wireless transmission, and the display means 350 for displaying the relationship information stored in the storage means. The embodiment will be described in detail with reference to FIG.

The transmission quality measuring unit determines the bit error rate of radio transmission between the mobile communication terminal and the radio base station, the electric field strength of the radio wave transmitted from the base station, or the like at fixed time intervals as the transmission quality related to radio communication. Measure each time you move a certain distance. On the other hand, at the same time, the position information detecting means detects the self position information of the mobile communication terminal. The means for detecting the position information may be any of the above-mentioned methods. The information on the correspondence relationship between the position information and the transmission quality related to wireless communication obtained here is stored in a mobile communication terminal such as a semiconductor memory or a magnetic disk. It is stored in the storage means using the device. This information can be retrieved at any time the mobile communication terminal is required for control. When the information on the correspondence between the new transmission quality and the position information is obtained, the old information is rewritten to always hold the information on the new correspondence.
This makes it possible to store the correspondence between the position and the quality of wireless transmission in and around the service area. On the contrary, if the position information is given, it is possible to predict the wireless transmission quality at the location from the history information of the transmission quality in the past communication and display it in a form such as a map drawing which is easy for the user to understand. An embodiment is conceivable in which the mobile communication terminal temporarily stores these correspondences and transfers the information via the communication network to a storage unit in or connected to the communication network. In this embodiment, the mobile communication terminal only needs to have storage means for temporarily storing the information on the correspondence relationship, and the mobile communication terminal can be miniaturized.

FIG. 29 shows an embodiment of the fourth structure of the third invention of the present application. In the embodiment shown in FIG. 29, the out-of-service area prediction means 351 for predicting that the mobile communication terminal deviates from the service area, the receiving means 352 for receiving information from the communication network, and the mobile communication terminal for the service area. A reception procedure storage unit 353 that describes a procedure for receiving information when it is predicted that a deviation will occur, a storage unit 353 that stores information received from a communication network, and information received from the communication network And a storage unit 354 for storing. The embodiment will be described in detail with reference to FIG.

The out-of-service-area predicting means of the mobile communication terminal shown in FIG. 29 uses the means for detecting self-position information and the range position information of the service area as described in the second embodiment of the third invention of the present application. The mobile communication terminal comprises a storage means and a motion detection means, etc., which are used to grasp the positional relationship between the service area and the mobile communication terminal, and to judge from the moving direction and speed etc. Predict to get out of. When the mobile communication terminal deviates from the service area, information cannot be sent and received to and from the communication network, but in this case, the user continues to work outside the service area or does other work. For the information required for the above, the user describes in advance in the reception procedure storage means the degree of necessity and the frequency of use. When it is predicted that the mobile communication terminal will leave the service area, the mobile communication terminal automatically receives necessary information from the communication network based on the procedure described in the reception procedure storage means and stores it in the storage means. . The user can continue the work by using the information stored in the storage means, or can immediately move to another work. By sending and receiving information between the communication network and the mobile communication terminal before the communication is cut off, it is possible to prevent the loss of necessary information or to update the information in the communication network to the latest version. You can also update it.

FIG. 30 shows an embodiment of the fifth constitution of the third invention of the present application. In the embodiment shown in FIG. 30, an antenna for inputting and outputting a high frequency signal, transmission / reception sharing, a radio transmitter / receiver including a radio modulator / demodulator, a transmission quality measuring unit for measuring the quality of radio transmission, and a channel A control unit for instructing switching of information, an encoding / decoding unit for performing information source coding and channel coding, and an input unit for inputting information and commands,
An information processing unit for processing received information, an output unit for displaying and outputting the information, a position information detecting unit for detecting self-position information of the mobile communication terminal, and a relational information between the position information and the quality of wireless transmission is stored. Storage means, an out-of-service-area prediction means for predicting that the mobile communication terminal deviates from the service area from the related information stored in the storage means, a display means for notifying a user of the predicted situation, and a communication And information storage means for storing information received from the network. The embodiment will be described in detail with reference to FIG.

The mobile communication terminal shown in FIG. 30 has means for detecting self-position information and means for measuring the quality of wireless transmission as described in the third embodiment of the third invention of the present application, and position information and wireless communication. Equipped with storage means for storing information on correspondence of transmission quality related to communication, the out-of-service-area prediction means uses these means to lower the communication quality of the communication network or disconnect the communication due to movement of the mobile communication terminal. Predict in advance that will occur. As a result of the prediction, the display means displays a communication disconnection warning on the image display device mounted on the mobile communication terminal or informs the user by using voice guidance, etc., and gives an instruction from the user. Wait for input. At this time, the user can stop the movement so as not to go out of the service area and stay there. To continue the movement, enter a command that explicitly indicates the information necessary to continue the work outside the service area or to start another work. Then, the mobile communication terminal sequentially receives necessary information from the communication network based on the input instruction and stores it in the storage means. This allows the user to continue the work using the information stored in the storage means or immediately move to another work. By sending and receiving information between the communication network and the mobile communication terminal before the communication is cut off, it is possible to prevent the loss of necessary information or to update the information in the communication network to the latest version. You can also update it.

[0103]

As described above, according to the first invention of the present application, even if the spot beam connection, which is a high-speed wireless transmission, is disconnected, some or all operations related to information processing are not stopped and stable operation is achieved. The downloaded data can be downloaded.

According to the second invention of the present application, data can be efficiently transmitted / received regarding wireless communication with a moving terminal, and a service user can perform communication without being aware of deviation from the service area.

According to the third invention of the present application, even if the mobile communication terminal moves and deviates from the service area, the user of the mobile communication terminal can perform processing without interrupting work such as information processing until communication is restarted. You can quickly move to continuous or new processing.

[Brief description of drawings]

FIG. 1 is a diagram showing an embodiment of a wireless communication system of a first invention of the present application.

FIG. 2 is a diagram showing an example of the configuration of a terminal station when radio wave communication is used for a wide beam and a spot beam.

FIG. 3 is a diagram showing an example of a configuration of a radio base station when radio wave communication is used for a wide beam and a spot beam.

FIG. 4 is a diagram showing an example of a configuration of a terminal station when optical communication is used for a wide beam and a spot beam.

FIG. 5 is a diagram showing an example of a configuration of a radio base station when optical communication is used for a wide beam and a spot beam.

FIG. 6 is a diagram showing an example of a configuration of a terminal station when radio wave communication is used as a wide beam and optical communication is used as a spot beam.

FIG. 7 is a diagram showing an example of a configuration of a radio base station when radio wave communication is used as a wide beam and optical communication is used as a spot beam.

FIG. 8 is a diagram showing an example of a configuration of a terminal station when optical communication is used as a wide beam and radio waves are used as a spot beam.

FIG. 9 is a diagram showing an example of a configuration of a wireless base station when optical communication is used as a wide beam and radio waves are used as a spot beam.

FIG. 10 is a diagram showing an example of an operation in the case where the wireless base station side controls switching of data transmission from a spot beam to a wide beam.

FIG. 11 is a diagram showing an example of an operation when the terminal station side controls switching of data transmission from a spot beam to a wide beam.

FIG. 12 is an explanatory diagram of an example of the first configuration of the second invention of the present application.

FIG. 13 is an explanatory diagram of a second embodiment of the first configuration of the second invention of the present application.

FIG. 14 is an explanatory diagram of the third embodiment of the first configuration of the second invention of the present application.

FIG. 15 is an explanatory diagram of an embodiment of the second configuration of the second invention of the present application.

FIG. 16 is an explanatory diagram of an example of the third configuration of the second invention of the present application.

FIG. 17 is an explanatory diagram of the second embodiment of the third configuration of the second invention of the present application.

FIG. 18 is an explanatory diagram of an embodiment of the fourth configuration of the second invention of the present application.

19 is a diagram showing an example of a boundary notification signal of the embodiment of FIG.

FIG. 20 is an explanatory diagram showing an example of a fifth configuration of the second invention of the present application.

FIG. 21 is an explanatory diagram showing a second embodiment of the fifth configuration of the second invention of the present application.

FIG. 22 is an explanatory diagram showing an example of a sixth configuration of the second invention of the present application.

FIG. 23 is a diagram showing an example of a hierarchical arrangement method of macro cells and micro cells.

FIG. 24 is an explanatory diagram showing an example of the first configuration of the third invention of the present application.

FIG. 25 is a diagram showing an example of arrangement of stations for transmitting and receiving radio beacon signals.

FIG. 26 is an explanatory diagram showing a second embodiment of the first configuration of the third invention of the present application.

FIG. 27 is an explanatory diagram showing an example of the second configuration of the third invention of the present application.

FIG. 28 is an explanatory diagram showing an example of the third configuration of the third invention of the present application.

FIG. 29 is an explanatory diagram showing an example of the fourth configuration of the third invention of the present application.

FIG. 30 is an explanatory diagram showing an embodiment of the fifth configuration of the third invention of the present application.

FIG. 31 is a diagram illustrating an example of a packet data receiving procedure.

─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Takashi Kamitake 1 Komukai Toshiba-cho, Kouki-ku, Kawasaki-shi, Kanagawa Within Toshiba R & D Center, Inc. (56) References JP-A-4-35327 (JP, A) Kaihei 3-297233 (JP, A) (58) Fields investigated (Int.Cl. ⁷ , DB name) H04B ^7/ 24-7/26 102 H04Q ^7/ 00-7/38

Claims (3)

(57) [Claims] 1. A means for detecting self-position information, and a storage means for storing range position information of a service area in which a wireless communication service is provided, received from a database connected to a communication network via a wireless base station. A correspondence means for obtaining a correspondence relationship between the self-position information and the range position information, and a motion detecting means for detecting a moving direction and a speed of the mobile communication terminal.
The mobile communication terminal is out of the wireless communication service area.
When it is detected that it has come off, and when it deviates, the motion detection means
It is appropriate to enter the service area again according to the information of
Out-of-service-area detection means for calculating the correct direction and distance
And the appropriate direction and distance to the user of the mobile communication terminal.
A mobile communication terminal comprising: means for notifying . 2. An out-of-service-area predicting means for predicting that the mobile communication terminal will go out of the service area, and automatically receiving from the communication network when the mobile communication terminal is predicted to go out of the service area . High necessity
The mobile communication terminal according to claim 1 , further comprising: a reception procedure storage unit that stores information regarding frequency of use . 3. The mobile communication terminal according to claim 2 , wherein the notifying unit notifies the user of a predicted situation.