Preventing erroneous detection of a data resource region due to an error in detection of a control signal

摘要

A transmitter device is capable of preventing error detection of a data resource area as a result of a detection mistake of a control signal. In the device, a control unit sets, as data resource areas, only PRBs that have been imparted with numbers greater than a number that has been imparted to a PRB for which has been set a control resource area for which a downlink assignment control signal (that is, a DL grant) has been mapped. In this manner, at a terminal, if the PRB for which a downlink assignment control signal has been detected can be identified, the data resource area can be identified directly, and therefore, it is possible to prevent error detection for the data resource area as a result of a detection mistake of an uplink assignment control signal.

主权项

1. A transmission apparatus configured to map transmission data for a reception apparatus to a data resource region, to map a control signal to a predetermined resource region other than the data resource region and to transmit the transmission data and the control signal to the reception apparatus, the transmission apparatus comprising:
a generation section that generates an assignment control signal for the data resource region, wherein the assignment control signal is a downlink assignment control signal that assigns a downlink data resource region and an uplink assignment control signal that assigns an uplink data resource region when a request for scheduling of an uplink data signal is included in a reporting information, or the assignment control signal is the downlink assignment control signal when the request for scheduling of the uplink data signal is not included in the reporting information; a setting section that sets the data resource region and a control resource region to which the assignment control signal is mapped, within the predetermined resource region in a resource block group (RBG) including four resource blocks (RBs) identified as RB#0, RB#1, RB#2, and RB#3; and a mapping section that maps the transmission data to the set data resource region and that maps the assignment control signal to the set control resource region, wherein the setting section sets RB#0 to be the RB to which the downlink assignment control signal is mapped when the assignment control signal is the downlink assignment control signal, sets RB#1 or RB#2 to be the RB to which the downlink assignment control signal is mapped when the assignment control signal is the downlink assignment control signal and the uplink assignment control signal, sets each of the four RBs identified by a number equal to or less than a number identifying the RB to which the downlink assignment control signal is mapped to be the control resource region, and sets each of the four RBs identified by a number larger than the number identifying the RB to which the downlink assignment control signal is mapped to be the data resource region.