Time slot control method, communication system, communication apparatus

Abstract

The invention provides an appropriate reception environment in a communication system using a slot coupling transfer method. A mobile communication system (1) comprises a transmitting part (13) that sequentially transmits time slots including communication signals; an S / N ratio acquiring part (24) that acquires reception environment information indicative of the reception environment of a mobile station apparatus (20) for each of the transmitted time slots; a request generating part (26) determines, based on the variation amount of the reception environments indicated by the acquired reception environment information, whether to cause the control bit sequence of a single time slot to represent at least a part of the control bit sequences of the successive time slots; and a time slot control part (18) that causes, in accordance with a result of that determination, the control bit sequence of a single time slot to represent at least a part of the control bit sequences of the successive time slots when a base station apparatus (10) transmits time slots.

Description

technical field [0001] The invention relates to a time slot control method, a communication system, a communication device and a storage medium. Background technique [0002] When modulating a signal in a mobile communication system, there is a method of selecting one of a plurality of modulation methods for modulation. The method of dynamically performing this selection is a method called an adaptive modulation method. In a mobile communication system employing an adaptive modulation method, each communication device uses a signal received from a communication partner as a reception parameter indicating a reception environment of a signal received from a communication partner. The received power of one of the environmental information is used to determine the modulation method of the signal to be transmitted by the communication device next time (for example, Patent Document 1). The reason for this is that the reception power (required reception power) required for recepti...

AI Technical Summary

Problems solved by technology

[0006] However, in this slot connection transmission method, when the control bits of one slot represent the above-mentioned control bit string of each slot constituting the connection slot, the control bit for transmitting the modulation method to the communication partner In the above-mentioned adaptive modulation method, the same modulation method cannot be used for each time slot constituting the connection time slot.

That is, if the slot connection transmission method is used, the control of the modulation method becomes rough compared to the case where this method is not used, and there is a problem that an appropriate reception environment cannot be obtained.

Images