Mobile communication system and communication control method

A communication control method for a mobile communication system which communicates by using a plurality of channels, the method comprising:

• transmitting information, regarding a wireless resource to be used for data transmission on a first channel and a future transmission timing of the first channel, from a first control unit to a second control unit;
• determining a wireless resource which can be applied to data transmission of a second channel by using at least the information regarding the wireless resource and the future transmission timing of the first channel;
• controlling communication of data on the second channel in accordance with the determined wireless resource;
• and
• calculating, prior to the transmitting information, a timing at which the information regarding the wireless resource and the future transmission timing is transmitted, on the basis of a time required for scheduling by the second control unit and a unit time for transmission of scheduling data,
• wherein the controlling communication of data on the second channel comprises using a first scheduling method when the determined wireless resource exceeds a predetermined threshold value and using a second scheduling method, different from the first scheduling method, when the determined wireless resource is equal to or smaller than the threshold value,
• wherein the first scheduling method is a scheduling method which equalizes transmission probabilities of users on the basis of a priority or wireless quality upon the control of communication, and
• wherein the second scheduling method is a scheduling method which can transmit high-priority data at a high probability upon the control of communication.

A control unit in a mobile communication system which communicates by using a plurality of channels, wherein the control unit

• receives information regarding a wireless resource to be used for data transmission on a first channel and a future transmission timing of the first channel;
• and
• determines, by using at least the future transmission timing of the first channel, a wireless resource which can be applied to data transmission of a second channel and controls communication of data on the second in accordance with the determined resource,
• wherein a timing at which the information regarding the wireless resource and the future transmission timing is transmitted to the control unit is calculated on the basis of a time required for scheduling by the control unit and a unit time for transmission of scheduling data,
• wherein the control unit uses a first scheduling method when the determined wireless resource exceeds a predetermined threshold value and uses a second scheduling method, different from the first scheduling method, when the determined wireless resource is equal to or smaller than the threshold value,
• wherein the first scheduling method is a scheduling method which equalizes transmission probabilities of users on the basis of a priority or wireless quality is used upon the control of communication, and
• wherein the second scheduling method is a scheduling method which can transmit high-priority data at a high probability is used upon the control of communication.

A non-transitory computer-readable medium storing a program causing a computer of a control unit in a mobile communication system which communicates by using a plurality of channels to execute functions of:

• determining, by using at least information, received from another control unit and regarding a wireless resource to be used for data transmission on a first channel and a future transmission timing of the first channel, a wireless resource which can be applied to data transmission on a second channel;
• and
• controlling communication of data on the second channel in accordance with the determined resource,
• wherein a timing at which the information regarding the wireless resource and the future transmission timing is transmitted to the computer, is calculated on the basis of a time required for scheduling by the control unit and a unit time for transmission of scheduling data,
• wherein the controlling communication of data on the second channel comprises using a first scheduling method when the determined wireless resource exceeds a predetermined threshold value and using a second scheduling method, different from the first scheduling method, when the determined wireless resource is equal to or smaller than the threshold value,
• wherein the first scheduling method is a scheduling method which equalizes transmission probabilities of users on the basis of a priority or wireless quality upon the control of communication, and
• wherein the second scheduling method is a scheduling method which can transmit high-priority data at a high probability upon the control of communication.

A mobile station in a communication system comprising a first control unit, a second control unit and the mobile station, wherein

• the first control unit transmits information, regarding a wireless resource to be used for data transmission on a first channel and a future transmission timing of the first channel, to the second control unit,
• the first control unit calculates a timing at which the information regarding the wireless resource and the future transmission timing is transmitted, on the basis of a time required for scheduling by the second control unit and a unit time for transmission of scheduling data,
• the second control unit determines a wireless resource which can be applied to data of a second channel with using at least the information regarding the wireless resource and the future transmission timing of the first channel and controls communication of data on the second channel in accordance with the determined wireless resource, and
• the mobile station receives data transmitted by the second control unit,
• the second control unit uses a first scheduling method when the determined wireless resource exceeds a predetermined threshold value and uses a second scheduling method, different from the first scheduling method, when the determined wireless resource is equal to or smaller than the predetermined threshold value,
• the first scheduling method is a scheduling method which equalizes transmission probabilities of users on the basis of a priority or wireless quality upon the control of communication, and the second scheduling method is a scheduling method which can transmit high-priority data at a high probability upon the control of communication.

A communication method for a mobile station in a communication system comprising a first control unit, a second control unit and the mobile station, the method comprising:

• transmitting, from the first control unit to the second control unit, information regarding a wireless resource to be used for data transmission on a first channel and a future transmission timing of the first channel;
• determining, at the second control unit, a wireless resource which can be applied to data of a second channel by using at least the information regarding the wireless resource and the future transmission timing of the first channel;
• controlling, at the second control unit, communication of data on the second channel in accordance with the determined wireless resource;
• and
• receiving, at the mobile station, data transmitted by the second control unit,
• wherein a timing at which the information regarding the wireless resource and the future transmission timing is transmitted, is calculated on the basis of a time required for scheduling by the control unit and a unit time for transmission of scheduling data
• wherein the controlling, at the second control unit, the communication of data on the second channel comprises using a first scheduling method when the determined wireless resource exceeds a predetermined threshold value and using a second scheduling method, different from the first scheduling method, when the determined wireless resource is equal to or smaller than the threshold value,
• wherein the first scheduling method is a scheduling method which equalizes transmission probabilities of users on the basis of a priority or wireless quality upon the control of communication, and
• wherein the second scheduling method is a scheduling method which can transmit high-priority data at a high probability upon the control of communication.