Multicarrier Communication System Employing Explicit Frequency Hopping
AssigneeTelefonaktiebolaget LM Ericsson
InventorsErik Dahlman, Ylva Jading, Per Skillermark, Stefan Parkvall
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Abstract
Variable bandwidth assignment and frequency hopping are employed to make efficient use of radio resources. Variable bandwidth assignment is achieved by dynamically allocating different numbers of subcarriers to different mobile terminals depending on their instantaneous channel conditions. The frequency hopping patterns are determined “on-the-fly” based on the current bandwidth assignments. The bandwidth assignments and frequency hopping patterns are signaled to the mobile terminals in a scheduling grant.
Claims16
A method of scheduling transmissions in a mobile communication system, said method comprising:
- determining a bandwidth assignment for at least one scheduled mobile terminal during a scheduling interval comprising two or more time slots;
- determining a frequency hopping pattern for said scheduled mobile terminal over said scheduling interval based on said bandwidth assignment for said scheduled mobile terminal;
- and
- transmitting to said scheduled mobile terminal the bandwidth assignment and frequency hopping pattern for the scheduling interval.
A scheduler in a mobile communication system for scheduling transmissions for a plurality of mobile devices, said scheduler configured to:
- determine a bandwidth assignment for at least one scheduled mobile terminal during a scheduling interval comprising two or more time slots;
- determine a frequency hopping pattern for said scheduled mobile terminal over said scheduling interval based on said bandwidth assignment for said scheduled mobile terminal;
- and
- transmit to said scheduled mobile terminal the bandwidth assignment and frequency hopping pattern for the scheduling interval.
Dependencies are inferred from the claim text.