Network and method for optimizing cell reselection by using an estimation of mobility of a mobile terminal
First Claim
1. A mobile telecommunications network, comprising:
- at least one mobile terminal registered therewith;
a calculation device that calculates periodically at a minimum frequency an indication of the movement of the mobile terminal within the network, wherein the indication of the movement of the mobile terminal corresponds to a velocity of the mobile terminal, and wherein a value on which said minimum frequency is dependent is transmitted to the mobile terminal by the network, wherein said calculation device internally modifies one of;
the value and the minimum frequency to be relative to a shorter value when the mobile terminal is detected as fast moving; and
an adjustment device that varies at least one of;
said minimum frequency and said value in dependence upon said movement indication, wherein the mobile terminal has an active communication state with the network and an inactive communication state with the network, and wherein the calculation device calculates the movement indication differently depending on whether the mobile terminal is in the active communication state or the inactive communication state, the calculating device including a first processor comprised in the mobile terminal for calculating the movement indication of the mobile terminal in the inactive communication state and a second processor comprised in the network and external to the mobile terminal for calculating the movement indication of the mobile terminal in the active communication state.
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Accused Products
Abstract
The mobile telecommunications network (n) has at least one mobile terminal (1) registered therewith. The network (n) has an active communication state with the mobile terminal (1) and an inactive communication state with the mobile terminal (1). Means Q; V for calculating an indication of the movement of the mobile terminal (1) within the network (n) in each of the states is provided. One embodiment is characterized in that, when the communication changes from a first of the states to a second of the states, the mobility indication calculated in the first of the states is used in the second of the states. In another embodiment, the indication of movement of the mobile terminal is calculated periodically at a time interval (CMCL). A value (DRX Cycle Length) which determines this time interval (CMCL) is transmitted by the network (n) to the mobile terminal (1). This second embodiment is characterized by including means for varying the time interval (CMCL) in dependence upon an indication of movement of the terminal (1).
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Citations
29 Claims
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1. A mobile telecommunications network, comprising:
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at least one mobile terminal registered therewith; a calculation device that calculates periodically at a minimum frequency an indication of the movement of the mobile terminal within the network, wherein the indication of the movement of the mobile terminal corresponds to a velocity of the mobile terminal, and wherein a value on which said minimum frequency is dependent is transmitted to the mobile terminal by the network, wherein said calculation device internally modifies one of;
the value and the minimum frequency to be relative to a shorter value when the mobile terminal is detected as fast moving; andan adjustment device that varies at least one of;
said minimum frequency and said value in dependence upon said movement indication, wherein the mobile terminal has an active communication state with the network and an inactive communication state with the network, and wherein the calculation device calculates the movement indication differently depending on whether the mobile terminal is in the active communication state or the inactive communication state, the calculating device including a first processor comprised in the mobile terminal for calculating the movement indication of the mobile terminal in the inactive communication state and a second processor comprised in the network and external to the mobile terminal for calculating the movement indication of the mobile terminal in the active communication state. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A mobile telecommunications network, comprising:
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at least one mobile terminal registered with the network, wherein the mobile terminal has an active communication state with the network and an inactive communication state with the network; a calculation device that calculates an indication of the movement of the mobile terminal within the network in each of said states, wherein the indication of the movement of the mobile terminal corresponds to a velocity of the mobile terminal, wherein, when communication changes from a first of said states to a second of said states, the movement indication calculated in the first of said states is used in the second of said states, and wherein the calculation device calculates the movement indication of the mobile terminal differently depending on whether the mobile terminal is in the active communication state or the inactive communication state, the calculating device including a first processor comprised in the mobile terminal for calculating the movement indication of the mobile terminal in the inactive communication state and a second processor comprised in the network and external to the mobile terminal for calculating the movement indication of the mobile terminal in the active communication state, wherein said first processor is operable to adjust cell reselection parameters in accordance with a plurality of said movement indications. - View Dependent Claims (11, 12, 13, 14)
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15. A method of operating mobile telecommunications network including at least one mobile terminal registered therewith, the method comprising:
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calculating periodically at minimum frequency an indication of the movement of the mobile terminal within the network, wherein the indication of the movement of the mobile terminal corresponds to a velocity of the mobile terminal, and wherein a value on which said minimum frequency is dependent is transmitted to the mobile terminal by the network, wherein said calculating step internally modifies one of;
the value and the minimum frequency to be relative to a shorter value when the mobile terminal is detected as fast moving; andvarying at least one of;
said minimum frequency and said value in dependence upon said movement indication, wherein the mobile terminal has an active communication state with the network and an inactive communication state with the network, and wherein the calculating includes calculating the movement indication of the mobile terminal differently depending on whether the mobile terminal is the active communication state or the inactive communication state, the calculating of the movement indication being performed by the mobile terminal in the inactive communication state and being performed by the network, external to the mobile terminal, in the active communication state. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23, 24)
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25. A method of operating a mobile telecommunications network with which at least one mobile terminal is registered, wherein the mobile terminal has an active communication state with the network and an inactive communication state with the network, the method comprising:
calculating an indication of the movement of the mobile terminal within the network in each of said states, wherein the indication of the movement of the mobile terminal corresponds to a velocity of the mobile terminal, wherein the calculating includes calculating the movement indication of the mobile terminal differently depending on whether the mobile terminal is the active communication state or the inactive communication state, and wherein, when communication changes from a first of said states to a second of said states, the movement indication calculated in the first of said states is used in the second of said states, wherein said calculating step is performed by a first processor comprised in the mobile terminal for calculating the movement indication of the mobile terminal in the inactive communication state, and wherein said calculating step is performed by a second processor comprised in the network and external to the mobile terminal for calculating the movement indication of the mobile terminal in the active communication state, wherein said first processor is operable to adjust cell reselection parameters in accordance with a plurality of said movement indications. - View Dependent Claims (26, 27, 28, 29)
Specification