Wireless communication system

摘要

In a wireless communication system, a terminal device and a base station device communicate using frequency bands selected from among a plurality of frequency bands. The base station device selects a frequency band used for a downlink and a frequency band used for an uplink as frequency bands used for communication with the terminal device from among the plurality of frequency bands, selects an association between the frequency band used for the downlink and the frequency band used for the uplink among the selected frequency bands, and transmits information indicating the selected frequency bands and information indicating the association containing identification information of the association using a signal specific to the terminal device.

主权项

1. A wireless communication system comprising:
a terminal station device; and a base station device, wherein the base station device comprises: transmitting, to the terminal station device, first information indicating carrier frequencies of one or more first frequency bands used for an uplink of a plurality of frequency bands for carrier aggregation (CA), second information indicating carrier frequencies of one or more second frequency bands used for a downlink of the plurality of frequency bands for the CA, and third information indicating association between each of the first frequency bands used for the uplink and each of the second frequency bands used for the downlink, in a case of changing the number of the plurality of frequency bands simultaneously available, wherein the number of the first frequency bands or the number of the second frequency bands before transmission is different from the number of the first frequency bands or the number of the second frequency bands after transmission, the terminal station device comprises: receiving, from the base station device, the first information, the second information and the third information.