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US 7,126,965 B2Granted
System for adaptive resending request control in mobile radio communications
AssigneeNEC Corporation
InventorAtsushi Sugisaki
Life of this patent
Estimating the term…
Abstract
In adaptive resending request control method and system in mobile radio communications, a reception side measures a line state in a line of a radio section, and selects, in accordance with the measurement result, the optimum packet resending control period from an association table of measurement values and packet resending control periods stored in advance to renew the control state and make the resending control period variable so that an excellent delay characteristic can be achieved. In accordance with the line state of the radio section, the highest precision line state measuring method can be selected.
Claims15
A system for an adaptive resending request control in mobile radio communications, comprising:
- a reception side;
- and
- a transmission side, wherein,
- said reception side comprises
- measuring means for measuring a line state of a line of a radio section and providing line state measurement results,
- a first data storage portion storing data of control states of coding rates in correspondence with line state measurement values,
- a comparator receiving the measurement results and reading the data of the control states from the first data storage portion to select an optimum control state of a coding rate in correspondence with the measurement results on a basis of the read data of the control states stored in the first data storage portion, and
- means for renewing the control state and transmitting control data on the control state to said transmission side;
- and
- said transmission side comprises
- a second data storage portion storing data of control states of coding rates,
- second selecting means receiving the control data and reading the data of the control states from the second data storage portion for selecting the coding rate in correspondence with the received control data on the basis of the received control data and the read data of the control states stored in the second data storage portion, and
- means for generating data with the selected coding rate and transmitting the generated data to said reception side.
10 more elements
A system for an adaptive resending request control in mobile radio communications, comprising:
- a reception side;
- and
- a transmission side, wherein,
- said reception side comprises
- measuring means for measuring a line state of a line of a radio section and providing line state measurement results,
- a first data storage portion storing data of control states of packet resending control periods in correspondence with line state measurement values,
- a comparator receiving the measurement results and reading the data of the control states from the first data storage portion to select an optimum control state of a packet resending control period in correspondence with the measurement results on a basis of the read data of the control states stored in the first data storage portion, and
- means for renewing the control state and transmitting control data on the control state to said transmission side;
- and
- said transmission side comprises
- a second data storage portion storing data of control states of packet resending control periods,
- second selecting means receiving the control data and reading the data of the control states from the second data storage portion for selecting the packet resending control period in correspondence with the received control data on the basis of the received control data and the read data of the control states stored in the second data storage portion, and
- control means for controlling a packet resending control period in response to the selected packet resending control period.
10 more elements
A system for an adaptive resending request control in mobile radio communications comprising:
- a reception side;
- and
- a transmission side, wherein,
- said reception side comprises
- measuring means for measuring a line state of a line of a radio section and providing line state measurement results,
- a first data storage portion storing data of control states, the control states corresponding to coding rates and packet resending control periods in correspondence with line state measurement values,
- a comparator receiving the measurement results and reading the data of the control states from the first data storage portion to select an optimum control state of a coding rate and packet resending control period in correspondence with the measurement results on a basis of the read data of the control states stored in the first data storage portion, and
- means for renewing the control state and transmitting control data on the control state to said transmission side;
- and
- said transmission side comprises
- a second data storage portion storing data of control states, the control states corresponding to coding rates and packet resending control periods,
- second selecting means receiving the control data and reading the data of the control states from the second data storage portion for selecting the coding rate and packet resending control period in correspondence with the received control data on the basis of the received control data and the read data of the control states stored in the second data storage portion,
- means for generating data with the selected coding rate and transmitting the generated data to said reception side, and
- control means for controlling a packet resending control period in response to the selected packet resending control period.
11 more elements
Dependencies are inferred from the claim text.