Mobile communication terminal and communication control method for selecting a communication device according to calculated communication scheduling information

Patent metadata

Field	Value
Publication number	US-11388578-B2
Application number	US-201916598789-A
Country	US
Kind code	B2
Filing date	Oct 10, 2019
Priority date	Oct 18, 2018
Publication date	Jul 12, 2022
Grant date	Jul 12, 2022

Abstract

A mobile communication terminal communicates with a plurality of base stations using a plurality of communication devices, and includes a movement route information management unit which manages movement route information of a moving member, a plurality of communication units which communicates using the plurality of communication devices, communication environment information which contains a position of each communication area, a communication quality of the communication device available in the communication area, and a communication cost, a mobile communication planning unit which calculates communication scheduling information on the basis of the movement route information, the communication quality information, the cost information, and a communication requirement of data to be transmitted, and a communication control unit which selects the communication device according to the calculated communication scheduling information.

First claim

What is claimed is:

1. A mobile communication terminal which communicates with a plurality of base stations using a plurality of communication devices, comprising:
a movement route information management unit which manages movement route information of the mobile communication terminal;
a plurality of communication units which communicates using the plurality of communication devices;
communication environment information which contains a position of each communication area, a communication quality of a communication device available in the communication area, and a communication cost;
a mobile communication planning unit which calculates communication scheduling information on the basis of the movement route information, the communication environment information, and a communication requirement of transmitting data; and
a communication control unit which selects the communication device according to the calculated communication scheduling information.

2. The mobile communication terminal according to claim 1 ,
wherein the movement route information includes a movement scheduled route and a movement scheduled speed of the mobile communication terminal.

3. The mobile communication terminal according to claim 1 ,
wherein the communication requirement includes a size of the transmitting data and a transmission completion time.

4. The mobile communication terminal according to claim 1 ,
wherein the communication scheduling information includes the selected communication device and a communication timing in the communication device.

5. The mobile communication terminal according to claim 1 ,
wherein the mobile communication planning unit selects the communication devices in an ascending order of the communication cost to calculate the communication scheduling information.

6. The mobile communication terminal according to claim 1 , further comprising:
a calculation unit which calculates a transmittable data amount in each communication device in each communication area where the data passes when being transmitted on the basis of the movement route information, the communication environment information, and the communication requirement of the transmitting data,
wherein the mobile communication planning unit calculates the communication scheduling information according to the calculated transmittable data amount in each communication device.

7. The mobile communication terminal according to claim 6 ,
wherein the calculation unit includes
a coordinate communication time calculation unit which calculates a passing time in a movement route on the basis of the movement route information, the communication environment information, and the communication requirement of the transmitting data,
an area communication time calculation unit which calculates a passing time of each communication area from the passing time in the movement route, and
an area communication amount calculation unit which calculates a transmittable data amount in each communication device in each communication area where the data passes when being transmitted on the basis of the passing time of each communication area and the communication environment information.

8. The mobile communication terminal according to claim 6 , further comprising:
a plurality of pieces of communication environment information which is different in a time zone,
wherein the calculation unit calculates the transmittable data amount in each communication device using the communication environment information corresponding to a current time.

9. A communication control method in which a mobile communication terminal communicates with a plurality of base stations using a plurality of communication devices,
the mobile communication terminal including
a processing device which performs a predetermined process,
a movement route information management unit which manages movement route information of the mobile communication terminal,
a plurality of communication units which communicates using the plurality of communication devices, and
communication environment information which includes a position of each communication area, a communication quality of a communication device available in the communication area, and a communication cost,
the communication control method comprising:
scheduling mobile communication in which the processing device calculates communication scheduling information on the basis of the movement route information, the communication environment information, and a communication requirement of transmitting data; and
controlling communication in which the processing device selects the communication device according to the calculated communication scheduling information.

10. The communication control method according to claim 9 ,
wherein the movement route information includes a movement scheduled route and a movement scheduled speed of the mobile communication terminal,
wherein the communication requirement includes a size and a transmission completion time of the transmitting data, and
wherein the communication scheduling information includes the selected communication device and a communication timing in the communication device.

11. The communication control method according to claim 9 ,
wherein, in the scheduling of the mobile communication, the processing device selects the communication device in an ascending order of the communication cost, and calculates the communication scheduling information.

12. The communication control method according to claim 9 , further comprising:
calculating, by the processing device, a transmittable data amount in each communication device in each communication area where the transmittable data passes when being transmitted on the basis of the movement route information, the communication environment information, and a communication requirement of the transmitting data,
wherein, in the scheduling of the mobile communication, the processing device calculates the communication scheduling information according to the calculated transmittable data amount in each communication device.

13. The communication control method according to claim 12 ,
wherein the calculating includes
a coordinate communication time calculating in which the processing device calculates a passing time in a movement route on the basis of the movement route information, the communication environment information, and a communication requirement of the transmitting data,
an area communication time calculating in which the processing device calculates a passing time of each communication area from the passing time in the movement route, and
an area communication amount calculating in which the processing device calculates a transmittable data amount in each communication device in each communication area where the data passes when being transmitted on the basis of the passing time of each communication area and the communication environment information.

14. The communication control method according to claim 12 ,
wherein the mobile communication terminal includes a plurality of pieces of communication environment information which is different in a time zone, and
wherein, in the calculating, the processing device calculates the transmittable data amount in each communication device using the communication environment information corresponding to a current time.

Assignees

• Hitachi Ltd

Inventors

• Yunoki Shoji

Classifications

• H04W36/324

  by mobility data, e.g. speed data · CPC title

• H04L67/125

  involving control of end-device applications over a network · CPC title

• H04W88/06

  adapted for operation in multiple networks {or having at least two operational modes}, e.g. multi-mode terminals · CPC title

• G01C21/3492

  employing speed data or traffic data, e.g. real-time or historical (traffic control systems for road vehicles involving transmission of navigation instructions to the vehicle G08G1/0968) · CPC title

• H04W4/48

  for in-vehicle communication · CPC title