Mobile communication system and communication control method

摘要

A communication control method is provided which improves a wireless resource usage rate, is available to recognize a variation in wireless resource state in advance, and is available to control communication in accordance with the variation in a mobile communication system in which an MBMS and an HSDPA coexist and the same wireless resource is shared and used. A MAC-m transmits information related to a wireless resource used on an MBMS transport channel at a transmission timing of a base station to a MAC-hs before the transmission timing. The MAC-hs receives the information related to the wireless resource of the MBMS transport channel from the MAC-m. The MAC-hs calculates a wireless resource which can be used applied to data of a HSDPA transport channel at the transmission timing with using the information related to the wireless resource of the MBMS transport channel and a wireless resource to which the HSDPA transport channel is allocated. The MAC-hs controls communication of the data in accordance with the wireless resource of the calculation result.

主权项

1. A mobile communication system that communicates by using a plurality of channels, comprising:
a first control unit and a second control unit, 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 second control unit determines 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 and controls communication of data on the second channel in accordance with the determined wireless resource, andthe 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 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, andthe second scheduling method is a scheduling method which can transmit high-priority data at a high probability upon the control of communication.