Radio terminal unit and radio communication system
First Claim
1. A radio terminal unit which sends a radio base station a PS-Poll as a control packet for requesting delivery so as to receive packets buffered by the radio base station, comprising:
- a communication control section;
a radio interface section; and
a PS-Poll transmission timing changer for changing the timing of transmission of the PS-Poll according to the operation mode of one or more communication applications which are running on the radio terminal unit.
1 Assignment
0 Petitions
Accused Products
Abstract
A radio terminal unit and a radio communication system, enabling power savings, the improvement of the quality of real-time communication such as voice communication, and the reduction of transmission delays which often occur when a plurality of radio terminal units are connected to one radio base station. An operation mode determination section determines whether real-time processing is necessary or unnecessary based on parameters of all active communication applications set by a communication application section. When real-time processing is necessary, a communication control section transmits a PS-Poll as a control packet for requesting delivery of packets to a radio base station, and turns on the power of a radio interface section so as to receive packets buffered by the radio base station. When real-time processing is unnecessary, the communication control section turns off the power of the radio interface section, and carries out intermittent receiving operation based on beacons transmitted from the radio base station.
52 Citations
84 Claims
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1. A radio terminal unit which sends a radio base station a PS-Poll as a control packet for requesting delivery so as to receive packets buffered by the radio base station, comprising:
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a communication control section;
a radio interface section; and
a PS-Poll transmission timing changer for changing the timing of transmission of the PS-Poll according to the operation mode of one or more communication applications which are running on the radio terminal unit. - View Dependent Claims (43)
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2. A radio terminal unit which sends a radio base station a PS-Poll as a control packet for requesting delivery so as to receive packets buffered by the radio base station, comprising:
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a communication control section;
a radio interface section; and
a PS-Poll transmission timing changer for changing the timing of transmission of the PS-Poll according to the operation mode of one or more communication applications which are running on the radio terminal unit, wherein;
the PS-Poll transmission timing changer determines the timing of transmission of the PS-Poll so that the PS-Poll is transmitted after transmission of data from the communication application. - View Dependent Claims (44)
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3. A radio terminal unit which sends a radio base station a PS-Poll as a control packet for requesting delivery so as to receive packets buffered by the radio base station, comprising:
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a communication control section;
a radio interface section; and
a PS-Poll transmission timing changer for changing the timing of transmission of the PS-Poll according to the operation mode of one or more communication applications which are running on the radio terminal unit, wherein;
the PS-Poll transmission timing changer determines whether there is a communication application that requires real-time processing;
when there is at least one communication application that requires real-time processing, the communication control section transmits the PS-Poll to the radio base station, and turns on the power of the radio interface section so as to receive packets buffered by the radio base station; and
when there is no communication application that requires real-time processing, the communication control section turns off the power of the radio interface section, and carries out intermittent receiving operation based on beacons transmitted from the radio base station. - View Dependent Claims (45)
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4. A radio terminal unit which sends a radio base station a PS-Poll as a control packet for requesting delivery so as to receive packets buffered by the radio base station, comprising:
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a communication control section;
a radio interface section; and
a PS-Poll transmission timing changer for changing the timing of transmission of the PS-Poll according to the operation mode of one or more communication applications which are running on the radio terminal unit, wherein;
the PS-Poll transmission timing changer determines the timing of transmission of the PS-Poll so that the PS-Poll is transmitted after transmission of data from the communication application;
the PS-Poll transmission timing changer determines whether there is a communication application that requires real-time processing;
when there is at least one communication application that requires real-time processing, the communication control section transmits the PS-Poll to the radio base station, and turns on the power of the radio interface section so as to receive packets buffered by the radio base station; and
when there is no communication application that requires real-time processing, the communication control section turns off the power of the radio interface section, and carries out intermittent receiving operation based on beacons transmitted from the radio base station. - View Dependent Claims (46)
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5. A radio terminal unit which sends a radio base station a PS-Poll as a control packet for requesting delivery so as to receive packets buffered by the radio base station, comprising:
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a communication control section;
a radio interface section; and
a PS-Poll transmission timing changer for changing the timing of transmission of the PS-Poll according to the operation mode of one or more communication applications which are running on the radio terminal unit, wherein;
the PS-Poll transmission timing changer determines whether there is a communication application that requires real-time processing;
when there is at least one communication application that requires real-time processing, the communication control section transmits the PS-Poll to the radio base station, and turns on the power of the radio interface section so as to receive packets buffered by the radio base station;
when there is no communication application that requires real-time processing, the communication control section turns off the power of the radio interface section, and carries out intermittent receiving operation based on beacons transmitted from the radio base station; and
the communication control section repeatedly receives the packets until no buffered packet remains in the radio base station by the PS-Poll, and turns off the power of the radio interface section when there is no buffered packet left. - View Dependent Claims (47)
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6. A radio terminal unit which sends a radio base station a PS-Poll as a control packet for requesting delivery so as to receive packets buffered by the radio base station, comprising:
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a communication control section;
a radio interface section; and
a PS-Poll transmission timing changer for changing the timing of transmission of the PS-Poll according to the operation mode of one or more communication applications which are running on the radio terminal unit, wherein;
the PS-Poll transmission timing changer determines the timing of transmission of the PS-Poll so that the PS-Poll is transmitted after transmission of data from the communication application;
the PS-Poll transmission timing changer determines whether there is a communication application that requires real-time processing;
when there is at least one communication application that requires real-time processing, the communication control section transmits the PS-Poll to the radio base station, and turns on the power of the radio interface section so as to receive packets buffered by the radio base station;
when there is no communication application that requires real-time processing, the communication control section turns off the power of the radio interface section, and carries out intermittent receiving operation based on beacons transmitted from the radio base station; and
the communication control section repeatedly receives the packets until no buffered packet remains in the radio base station by the PS-Poll, and turns off the power of the radio interface section when there is no buffered packet left. - View Dependent Claims (48)
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7. A radio terminal unit which sends a radio base station a PS-Poll as a control packet for requesting delivery so as to receive packets buffered by the radio base station, comprising:
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a communication control section;
a radio interface section; and
a PS-Poll transmission timing changer for changing the timing of transmission of the PS-Poll according to the operation mode of one or more communication applications which are running on the radio terminal unit, wherein;
the PS-Poll transmission timing changer determines whether there is a communication application that requires real-time processing based on information as to whether real-time processing is necessary or unnecessary attached to the data of each communication application;
when there is at least one communication application that requires real-time processing, the communication control section transmits the PS-Poll to the radio base station, and turns on the power of the radio interface section so as to receive packets buffered by the radio base station; and
when there is no communication application that requires real-time processing, the communication control section turns off the power of the radio interface section, and carries out intermittent receiving operation based on beacons transmitted from the radio base station. - View Dependent Claims (49)
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8. A radio terminal unit which sends a radio base station a PS-Poll as a control packet for requesting delivery so as to receive packets buffered by the radio base station, comprising:
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a communication control section;
a radio interface section; and
a PS-Poll transmission timing changer for changing the timing of transmission of the PS-Poll according to the operation mode of one or more communication applications which are running on the radio terminal unit, wherein;
the PS-Poll transmission timing changer determines the timing of transmission of the PS-Poll so that the PS-Poll is transmitted after transmission of data from the communication application;
the PS-Poll transmission timing changer determines whether there is a communication application that requires real-time processing based on information as to whether real-time processing is necessary or unnecessary attached to the data of each communication application;
when there is at least one communication application that requires real-time processing, the communication control section transmits the PS-Poll to the radio base station, and turns on the power of the radio interface section so as to receive packets buffered by the radio base station; and
when there is no communication application that requires real-time processing, the communication control section turns off the power of the radio interface section, and carries out intermittent receiving operation based on beacons transmitted from the radio base station. - View Dependent Claims (50)
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9. A radio terminal unit which sends a radio base station a PS-Poll as a control packet for requesting delivery so as to receive packets buffered by the radio base station, comprising:
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a communication control section;
a radio interface section; and
a PS-Poll transmission timing changer for changing the timing of transmission of the PS-Poll according to the operation mode of one or more communication applications which are running on the radio terminal unit, wherein;
the PS-Poll transmission timing changer determines whether there is a communication application that requires real-time processing based on information as to whether real-time processing is necessary or unnecessary attached to the data of each communication application;
when there is at least one communication application that requires real-time processing, the communication control section transmits the PS-Poll to the radio base station, and turns on the power of the radio interface section so as to receive packets buffered by the radio base station;
when there is no communication application that requires real-time processing, the communication control section turns off the power of the radio interface section, and carries out intermittent receiving operation based on beacons transmitted from the radio base station; and
the communication control section repeatedly receives the packets until no buffered packet remains in the radio base station by the PS-Poll, and turns off the power of the radio interface section when there is no buffered packet left. - View Dependent Claims (51)
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10. A radio terminal unit which sends a radio base station a PS-Poll as a control packet for requesting delivery so as to receive packets buffered by the radio base station, comprising:
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a communication control section;
a radio interface section; and
a PS-Poll transmission timing changer for changing the timing of transmission of the PS-Poll according to the operation mode of one or more communication applications which are running on the radio terminal unit, wherein;
the PS-Poll transmission timing changer determines the timing of transmission of the PS-Poll so that the PS-Poll is transmitted after transmission of data from the communication application;
the PS-Poll transmission timing changer determines whether there is a communication application that requires real-time processing based on information as to whether real-time processing is necessary or unnecessary attached to the data of each communication application;
when there is at least one communication application that requires real-time processing, the communication control section transmits the PS-Poll to the radio base station, and turns on the power of the radio interface section so as to receive packets buffered by the radio base station;
when there is no communication application that requires real-time processing, the communication control section turns off the power of the radio interface section, and carries out intermittent receiving operation based on beacons transmitted from the radio base station; and
the communication control section repeatedly receives the packets until no buffered packet remains in the radio base station by the PS-Poll, and turns off the power of the radio interface section when there is no buffered packet left. - View Dependent Claims (52)
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11. A radio terminal unit which sends a radio base station a PS-Poll as a control packet for requesting delivery so as to receive packets buffered by the radio base station, comprising:
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a communication control section;
a radio interface section; and
a PS-Poll transmission timing changer for changing the timing of transmission of the PS-Poll according to the operation mode of one or more communication applications which are running on the radio terminal unit, wherein;
the PS-Poll transmission timing changer detects a changeover in the communication applications, and determines whether there is a communication application that requires real-time processing each time the changeover is carried out;
when there is at least one communication application that requires real-time processing, the communication control section transmits the PS-Poll to the radio base station, and turns on the power of the radio interface section so as to receive packets buffered by the radio base station; and
when there is no communication application that requires real-time processing, the communication control section turns off the power of the radio interface section, and carries out intermittent receiving operation based on beacons transmitted from the radio base station. - View Dependent Claims (19, 27, 35, 53, 61, 69, 77)
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12. A radio terminal unit which sends a radio base station a PS-Poll as a control packet for requesting delivery so as to receive packets buffered by the radio base station, comprising:
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a communication control section;
a radio interface section; and
a PS-Poll transmission timing changer for changing the timing of transmission of the PS-Poll according to the operation mode of one or more communication applications which are running on the radio terminal unit, wherein;
the PS-Poll transmission timing changer determines the timing of transmission of the PS-Poll so that the PS-Poll is transmitted after transmission of data from the communication application;
the PS-Poll transmission timing changer detects a changeover in the communication applications, and determines whether there is a communication application that requires real-time processing each time the changeover is carried out;
when there is at least one communication application that requires real-time processing, the communication control section transmits the PS-Poll to the radio base station, and turns on the power of the radio interface section so as to receive packets buffered by the radio base station; and
when there is no communication application that requires real-time processing, the communication control section turns off the power of the radio interface section, and carries out intermittent receiving operation based on beacons transmitted from the radio base station. - View Dependent Claims (20, 28, 36, 54, 62, 70, 78)
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13. A radio terminal unit which sends a radio base station a PS-Poll as a control packet for requesting delivery so as to receive packets buffered by the radio base station, comprising:
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a communication control section;
a radio interface section; and
a PS-Poll transmission timing changer for changing the timing of transmission of the PS-Poll according to the operation mode of one or more communication applications which are running on the radio terminal unit, wherein;
the PS-Poll transmission timing changer detects a changeover in the communication applications, and determines whether there is a communication application that requires real-time processing each time the changeover is carried out;
when there is at least one communication application that requires real-time processing, the communication control section transmits the PS-Poll to the radio base station, and turns on the power of the radio interface section so as to receive packets buffered by the radio base station;
when there is no communication application that requires real-time processing, the communication control section turns off the power of the radio interface section, and carries out intermittent receiving operation based on beacons transmitted from the radio base station; and
the communication control section repeatedly receives the packets until no buffered packet remains in the radio base station by the PS-Poll, and turns off the power of the radio interface section when there is no buffered packet left. - View Dependent Claims (21, 29, 37, 55, 63, 71, 79)
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14. A radio terminal unit which sends a radio base station a PS-Poll as a control packet for requesting delivery so as to receive packets buffered by the radio base station, comprising:
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a communication control section;
a radio interface section; and
a PS-Poll transmission timing changer for changing the timing of transmission of the PS-Poll according to the operation mode of one or more communication applications which are running on the radio terminal unit, wherein;
the PS-Poll transmission timing changer determines the timing of transmission of the PS-Poll so that the PS-Poll is transmitted after transmission of data from the communication application;
the PS-Poll transmission timing changer detects a changeover in the communication applications, and determines whether there is a communication application that requires real-time processing each time the changeover is carried out;
when there is at least one communication application that requires real-time processing, the communication control section transmits the PS-Poll to the radio base station, and turns on the power of the radio interface section so as to receive packets buffered by the radio base station;
when there is no communication application that requires real-time processing, the communication control section turns off the power of the radio interface section, and carries out intermittent receiving operation based on beacons transmitted from the radio base station; and
the communication control section repeatedly receives the packets until no buffered packet remains in the radio base station by the PS-Poll, and turns off the power of the radio interface section when there is no buffered packet left. - View Dependent Claims (22, 30, 38, 56, 64, 72, 80)
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15. A radio terminal unit which sends a radio base station a PS-Poll as a control packet for requesting delivery so as to receive packets buffered by the radio base station, comprising:
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a communication control section;
a radio interface section; and
a PS-Poll transmission timing changer for changing the timing of transmission of the PS-Poll according to the operation mode of one or more communication applications which are running on the radio terminal unit, wherein;
the PS-Poll transmission timing changer detects a changeover in the communication applications, and determines whether there is a communication application that requires real-time processing based on information as to whether real-time processing is necessary or unnecessary attached to the data of each communication application every time the changeover is carried out;
when there is at least one communication application that requires real-time processing, the communication control section transmits the PS-Poll to the radio base station, and turns on the power of the radio interface section so as to receive packets buffered by the radio base station; and
when there is no communication application that requires real-time processing, the communication control section turns off the power of the radio interface section, and carries out intermittent receiving operation based on beacons transmitted from the radio base station. - View Dependent Claims (23, 31, 39, 57, 65, 73, 81)
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16. A radio terminal unit which sends a radio base station a PS-Poll as a control packet for requesting delivery so as to receive packets buffered by the radio base station, comprising:
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a communication control section;
a radio interface section; and
a PS-Poll transmission timing changer for changing the timing of transmission of the PS-Poll according to the operation mode of one or more communication applications which are running on the radio terminal unit, wherein;
the PS-Poll transmission timing changer determines the timing of transmission of the PS-Poll so that the PS-Poll is transmitted after transmission of data from the communication application;
the PS-Poll transmission timing changer detects a changeover in the communication applications, and determines whether there is a communication application that requires real-time processing based on information as to whether real-time processing is necessary or unnecessary attached to the data of each communication application every time the changeover is carried out;
when there is at least one communication application that requires real-time processing, the communication control section transmits the PS-Poll to the radio base station, and turns on the power of the radio interface section so as to receive packets buffered by the radio base station; and
when there is no communication application that requires real-time processing, the communication control section turns off the power of the radio interface section, and carries out intermittent receiving operation based on beacons transmitted from the radio base station. - View Dependent Claims (24, 32, 40, 58, 66, 74, 82)
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17. A radio terminal unit which sends a radio base station a PS-Poll as a control packet for requesting delivery so as to receive packets buffered by the radio base station, comprising:
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a communication control section;
a radio interface section; and
a PS-Poll transmission timing changer for changing the timing of transmission of the PS-Poll according to the operation mode of one or more communication applications which are running on the radio terminal unit, wherein;
the PS-Poll transmission timing changer detects a changeover in the communication applications, and determines whether there is a communication application that requires real-time processing based on information as to whether real-time processing is necessary or unnecessary attached to the data of each communication application every time the changeover is carried out;
when there is at least one communication application that requires real-time processing, the communication control section transmits the PS-Poll to the radio base station, and turns on the power of the radio interface section so as to receive packets buffered by the radio base station;
when there is no communication application that requires real-time processing, the communication control section turns off the power of the radio interface section, and carries out intermittent receiving operation based on beacons transmitted from the radio base station; and
the communication control section repeatedly receives the packets until no buffered packet remains in the radio base station by the PS-Poll, and turns off the power of the radio interface section when there is no buffered packet left. - View Dependent Claims (25, 33, 41, 59, 67, 75, 83)
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18. A radio terminal unit which sends a radio base station a PS-Poll as a control packet for requesting delivery so as to receive packets buffered by the radio base station, comprising:
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a communication control section;
a radio interface section; and
a PS-Poll transmission timing changer for changing the timing of transmission of the PS-Poll according to the operation mode of one or more communication applications which are running on the radio terminal unit, wherein;
the PS-Poll transmission timing changer determines the timing of transmission of the PS-Poll so that the PS-Poll is transmitted after transmission of data from the communication application;
the PS-Poll transmission timing changer detects a changeover in the communication applications, and determines whether there is a communication application that requires real-time processing based on information as to whether real-time processing is necessary or unnecessary attached to the data of each communication application every time the changeover is carried out;
when there is at least one communication application that requires real-time processing, the communication control section transmits the PS-Poll to the radio base station, and turns on the power of the radio interface section so as to receive packets buffered by the radio base station;
when there is no communication application that requires real-time processing, the communication control section turns off the power of the radio interface section, and carries out intermittent receiving operation based on beacons transmitted from the radio base station; and
the communication control section repeatedly receives the packets until no buffered packet remains in the radio base station by the PS-Poll, and turns off the power of the radio interface section when there is no buffered packet left. - View Dependent Claims (26, 34, 42, 60, 68, 76, 84)
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Specification