| 摘要 |
FIELD: radio engineering, communication.SUBSTANCE: radio communication devices (1, 2) communicate using a plurality of frequency bands. The radio communication device (1) transmits a control message to the radio communication device (2) using a first frequency band, said message including identification information indicating a second frequency band different from the first frequency band, during a random access procedure. The radio communication device (2) receives the control message from the radio communication device (1) using the first frequency band and transmits data using the second frequency band with said identification information included in the control message.EFFECT: efficient control of use of a plurality of frequency bands.4 cl, 31 dwg |
