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US 8,804,595 B2Granted
Communication transmission system
AssigneeFujitsu Limited
InventorsHuy-Dung Han, Golnaz Farhadi
Life of this patent
Estimating the term…
Abstract
In an example embodiment, a method of adjusting a modulation and coding scheme may include selecting a modulation and coding scheme for multiple terminals and broadcasting a modulation and coding scheme identifier to the terminals. The modulation and coding scheme identifier may be configured to identify the selected modulation and coding scheme such that each of the plurality of terminals transmits a transmission to the base station based at least in part on the selected modulation and coding scheme.
Claims21
A method of adjusting a modulation and coding scheme, the method comprising:
- selecting a modulation and coding scheme for a plurality of terminals by a base station;
- broadcasting a modulation and coding scheme identifier to the plurality of terminals, the modulation and coding scheme identifier configured to identify the selected modulation and coding scheme such that each of the plurality of terminals transmits a transmission to the base station based at least in part on the selected modulation and coding scheme;
- and receiving a second modulation and coding scheme identifier from one of the plurality of terminals, the second modulation and coding scheme identifier configured to identify a modulation and coding scheme adjusted at one of the plurality of terminals, wherein the adjusted modulation and coding scheme is determined by the one of the plurality of terminals performing operations comprising:
- calculating a success rate for the modulation and coding scheme;
- determining whether the success rate is within a target success rate range;
- and in response to the success rate being outside and less than the target success rate range, determining whether to decrease the modulation and coding scheme;
- or in response to the success rate being outside and greater than the target success rate range, determining whether to increase the first modulation and coding scheme.
4 more elements
A method of adjusting a modulation and coding scheme, the method comprising:
- receiving a first modulation and coding scheme identifier at a terminal from a base station, the first modulation and coding scheme identifier configured to identify a first modulation and coding scheme;
- determining a second modulation and coding scheme at the terminal;
- transmitting a second modulation and coding scheme identifier from the terminal to the base station, the second modulation and coding scheme identifier configured to identify the second modulation and coding scheme;
- and transmitting a transmission to the base station based at least in part on the second modulation and coding scheme, wherein determining a second modulation and coding scheme at the terminal comprises:
- calculating a success rate for the first modulation and coding scheme;
- determining whether the success rate is within a target success rate range;
- and in response to the success rate being outside and less than the target success rate range, determining whether to decrease the first modulation and coding scheme;
- or in response to the success rate being outside and greater than the target success rate range, determining whether to increase the first modulation and coding scheme.
5 more elements
A terminal comprising:
- a processing device;
- and
- a non-transitory computer storage medium having computer instructions stored thereon that are executable by the processing device to perform operations comprising:
- receiving a first modulation and coding scheme index at the terminal from a base station, the first modulation and coding scheme index configured to identify a first modulation and coding scheme from a plurality of modulation and coding schemes;
- determining a second modulation and coding scheme at the terminal;
- transmitting an indicator from the terminal to the base station, the indicator configured to identify a second modulation and coding scheme from the plurality of modulation and coding schemes;
- and
- transmitting a transmission from the terminal to the base station based at least in part on the second modulation and coding scheme, wherein determining a second modulation and coding scheme at the terminal comprises:
- calculating a success rate for the first modulation and coding scheme;
- determining whether the success rate is within a target success rate range;
- and
- in response to the success rate being outside and less than the target success rate range, determining whether to decrease the first modulation and coding scheme;
- or
- in response to the success rate being outside and greater than the target success rate range, determining whether to increase the first modulation and coding scheme.
11 more elements
Dependencies are inferred from the claim text.