RADIO TRANSMITTER AND RADIO RECEIVER
First Claim
1. A radio transmitting apparatus that maps a plurality of control channel signals for different transmission target apparatuses, to a frequency domain assigned to a control channel, and transmits the control channel signals, comprising:
- a calculation section that calculates a hash value from a bit sequence representing an apparatus ID of each transmission target apparatus; and
a mapping section that arranges the plurality of control channel signals in the frequency domain in a sequence in which the calculated hash value of the each transmission target apparatus monotonously increases or decreases.
1 Assignment
0 Petitions
Accused Products
Abstract
A radio transmitter and a radio receiver which reduce the number of blind determinations of control signals while maintaining resource utilization efficiency. A radio transmitter (100) includes a hash value calculating section (131) for calculating a hash value from a bit sequence indicating the device ID of each device or a transmission destination, and arranges a plurality of control channel signals in the order in which the calculated hash value of the each device increases or decreases monotonously in a frequency region which is the mapping resource range of the control channel signals. A radio receiver (200) acquires the order in which the control channel signals arranged according to the hash value are arranged. Even when the terminal ID included in the control channel signal decoded first is not the terminal ID of the radio receiver (200), the radio receiver (200) predicts the range in which the control channel signal including the terminal ID of the radio receiver (200) exists in the order by comparing the hash values obtained from both the terminal IDs with each other.
12 Citations
6 Claims
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1. A radio transmitting apparatus that maps a plurality of control channel signals for different transmission target apparatuses, to a frequency domain assigned to a control channel, and transmits the control channel signals, comprising:
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a calculation section that calculates a hash value from a bit sequence representing an apparatus ID of each transmission target apparatus; and a mapping section that arranges the plurality of control channel signals in the frequency domain in a sequence in which the calculated hash value of the each transmission target apparatus monotonously increases or decreases. - View Dependent Claims (2, 3, 4, 5, 6)
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Specification