WIRELESS DATA COMMUNICATION METHOD AND WIRELESS DATA COMMUNICATION SYSTEM
First Claim
1. A wireless data communication system comprising:
- a master device comprising wireless data communication means for transmitting and receiving data packets between the master device and at least one slave device using a synchronized data communication protocol,at least one slave device comprising wireless data communication means for transmitting and receiving data packets between the master device and at least one slave device using the synchronized data communication protocol,characterised in that the system comprises means fordefining a first time period between consecutive packets to be transmitted,defining a second time period for calculating the number of packets received by the master device during the second time period,calculating the number of data packets received by the master device in the predetermined second time period, whereinif the calculated number of packets is smaller than a first threshold value the first time period is decreased, andif the calculated number of packets is larger than a second threshold value the first time period is increased.
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Abstract
The invention relates to a method for transmitting and receiving data packets between a master device (31) and at least one slave device (32, 33, 34, 35) using a synchronized data communication protocol. In the method, a time period to be used between consecutive packets to be transmitted to the master device (31) is defined, on the basis of the calculated number of data packets received by the master device (31) in a predetermined time period. The invention further relates to a wireless data communication system, a master device (31), and a slave device (32, 33, 34, 35), comprising wireless data communication means (22) for transmitting and receiving data packets between the devices (31,32, 33, 34, 35) using a synchronized data communication protocol. In the protocol, the time period to be used between consecutive packets to be transmitted is defined on the basis of the calculated number of data packets received by the master device (31) in a predetermined time period.
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Citations
30 Claims
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1. A wireless data communication system comprising:
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a master device comprising wireless data communication means for transmitting and receiving data packets between the master device and at least one slave device using a synchronized data communication protocol, at least one slave device comprising wireless data communication means for transmitting and receiving data packets between the master device and at least one slave device using the synchronized data communication protocol, characterised in that the system comprises means for defining a first time period between consecutive packets to be transmitted, defining a second time period for calculating the number of packets received by the master device during the second time period, calculating the number of data packets received by the master device in the predetermined second time period, wherein if the calculated number of packets is smaller than a first threshold value the first time period is decreased, and if the calculated number of packets is larger than a second threshold value the first time period is increased. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A master device comprising:
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wireless data communication means for transmitting and receiving data packets between the master device and at least one slave device using a synchronized data communication protocol, characterised in that the master device comprises means for defining a first time period between consecutive packets to be transmitted to the master device, transmitting information on the first time period to the slave device, defining a second time period for calculating the number of packets received by the master device during the second time period, defining of the number of data packets to be received by the master device in the predetermined second time period, calculating the number of data packets received by the master device in the predetermined second time period, wherein if the calculated number of packets is smaller than a first threshold value the first time period is decreased, and if the calculated number of packets is larger than a second threshold value the first time period is increased, and transmitting the information on the first time period to the slave device if the first time period is changed. - View Dependent Claims (10, 11, 12, 13)
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14. A slave device comprising:
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wireless data communication means for transmitting and receiving data packets between a master device and a slave device using a synchronized data communication protocol, characterised in that the slave device comprises means for receiving information on a first time period between consecutive data packets to be transmitted to the master device from the slave device, and adjusting the transmission period of consecutive data packets on the basis of the information on the first time period. - View Dependent Claims (15)
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16. A method for a wireless data communication comprising:
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transmitting and receiving data between a master device and at least one slave device using a synchronized data communication protocol, characterised in that the method further comprises; defining a first time period between consecutive packets to be transmitted to the master device, defining a second time period for calculating the number of packets received by the master device during the second time period, calculating the number of data packets received by the master device in the predetermined second time period, wherein if the calculated number of packets is smaller than a first threshold value the first time period is decreased, and if the calculated number of packets is larger than a second threshold value the first time period is increased. - View Dependent Claims (17, 18, 19, 20, 21, 22)
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23. A method for a master device comprising:
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transmitting and receiving data between the master device and at least one slave device using a synchronized data communication protocol, characterised in that the method further comprises; defining a first time period between consecutive packets to be transmitted to the master device, defining a second time period for calculating the number of packets received by the master device during the second time period, calculating the number of data packets received by the master device in the predetermined second time period, wherein if the calculated number of packets is smaller than a first threshold value the first time period is decreased, and if the calculated number of packets is larger than a second threshold value the first time period is increased. transmitting the information on the first time period to the slave device if the first time period is changed. - View Dependent Claims (24, 25, 26, 27, 28)
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29. A method for a slave device comprising:
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transmitting and receiving data between a master device and the slave device using a synchronized data communication protocol, characterised in that the method further comprises; receiving information on a first time period between consecutive data packets to be transmitted to the master device, and adjusting the transmission period of consecutive data packets on the basis of the information on the first time period. - View Dependent Claims (30)
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Specification