Controlling Radio Connection States
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Abstract
Control of transitions between radio resource control, RRC, states for a wireless terminal in a radio access network is described. The radio resource control states comprise a first state and a second state. A calculation (702) is made of a prediction of an inter-arrival time, ITB, between data bursts to be handled. A detection (704) that a data burst is to be handled is done and then it is decided (706) whether to make a transition from the first state to the second state essentially immediately and upon termination of handling of the detected data burst if the prediction of the ITB is greater than a current ITB threshold. The current ITB threshold is a time interval that is depending on a function of RRC state transition costs and the fractional distribution of true predictions and false predictions of a plurality of predicted ITB values in relation to recorded ITB values. Then, in accordance with the decision, the wireless terminal is directed (708) either to remain in the first state or switch to the second state.
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Citations
42 Claims
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1-21. -21. (canceled)
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22. A method in a node for controlling transitions between radio resource control (RRC) states for a wireless terminal in a radio access network, the radio resource control states comprising a first state and a second state, the method comprising:
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calculating a prediction of an inter-arrival time (ITB) between data bursts to be handled; detecting that a data burst is to be handled; deciding whether to make a transition from the first state to the second state essentially immediately upon termination of handling of the detected data burst if the prediction of the ITB is greater than a current ITB threshold, the current ITB threshold being a time interval that is depending on a function of RRC state transition costs and the fractional distribution of true predictions and false predictions of a plurality of predicted ITB values in relation to recorded ITB values; and directing the wireless terminal either to remain in the first state or switch to the second state in accordance with the decision. - View Dependent Claims (23, 24, 25, 26, 27, 28, 29, 30, 31)
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32. A node for controlling transitions between radio resource control (RRC) states for a wireless terminal in a radio access network, the radio resource control states comprising a first state and a second state, the node comprising communication and control circuitry configured to:
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calculate a prediction of an inter-arrival time (ITB) between data bursts to be handled, detect that a data burst is to be handled, decide whether to make a transition from the first state to the second state essentially immediately and upon termination of handling of the detected data burst if the prediction of the ITB is greater than a current ITB threshold, the current ITB threshold being a time interval that is depending on a function of RRC state transition costs and the fractional distribution of true predictions and false predictions of a plurality of predicted ITB values in relation to recorded ITB values, and direct the wireless terminal either to remain in the first state or switch to the second state in accordance with the decision. - View Dependent Claims (33, 34, 35, 36, 37, 38, 39, 40, 41)
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42. A non-transitory computer-readable medium comprising, stored thereupon, software instructions that, when executed in a processor in a node for controlling transitions between radio resource control (RRC) states for a wireless terminal in a radio access network, the radio resource control states comprising a first state and a second state, causes the processor to:
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calculate a prediction of an inter-arrival time (ITB) between data bursts to be handled; detect that a data burst is to be handled; decide whether to make a transition from the first state to the second state essentially immediately upon termination of handling of the detected data burst if the prediction of the ITB is greater than a current ITB threshold, the current ITB threshold being a time interval that is depending on a function of RRC state transition costs and the fractional distribution of true predictions and false predictions of a plurality of predicted ITB values in relation to recorded ITB values; and direct the wireless terminal either to remain in the first state or switch to the second state in accordance with the decision.
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Specification