Apparatus method and computer program element for efficient control and supervision of the activity of a communication device
First Claim
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1. A communication device comprising:
- a state control unit which can operate the communication device in at least three useful data transmission states that include;
an active data transmission state of a data link layer, in which a first useful data communication link with first communication resources is allocated to the communication device,an observe data transmission state of the data link layer, in which a second useful data communication link with the first communication resources is allocated to the communication device, andan inactive data transmission state of the data link layer, in which a useful data communication link with second communication resources is allocated to the communication device, the second communication resources being fewer than the first communication resources;
a first timer, associated with the observe data transmission state, to start based on use of one or more transport channels by a Medium Access Control layer to send data to a physical layer;
a second timer, associated with the active data transmission state, to initially start after the first useful data communication link allocation with the first communication resources; and
a state transition control unit which can perform at least the following state transitions;
a state change from the active data transmission state to the observe data transmission state at expiry of the second timer,a state change from the observe data transmission state to the inactive data transmission state at expiry of the first timer,a state change from the inactive data transmission state to the active data transmission state when a first state transition criterion has been met, anda state change from the observe data transmission state to the active data transmission state when a second state transition criterion has been met,wherein the first state transition criterion and the second state transition criterion are based on an activity or inactivity of the communication device, and wherein the three useful data transmission states are substates from at least one of a CELL_DCH state or a Long_Term_Evolution_Active state.
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Abstract
The communication device has three useful data transmission states, where the communication device in the first and in the second state has associated first communication resources and in the third state has associated second communication resources, with the second communication resources being fewer than the first communication resources. Provision is made for there to be state changes from the first state to the second state, from the second state to the third state, from the third state to the first state and from the second state to the first state.
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Citations
31 Claims
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1. A communication device comprising:
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a state control unit which can operate the communication device in at least three useful data transmission states that include; an active data transmission state of a data link layer, in which a first useful data communication link with first communication resources is allocated to the communication device, an observe data transmission state of the data link layer, in which a second useful data communication link with the first communication resources is allocated to the communication device, and an inactive data transmission state of the data link layer, in which a useful data communication link with second communication resources is allocated to the communication device, the second communication resources being fewer than the first communication resources; a first timer, associated with the observe data transmission state, to start based on use of one or more transport channels by a Medium Access Control layer to send data to a physical layer; a second timer, associated with the active data transmission state, to initially start after the first useful data communication link allocation with the first communication resources; and a state transition control unit which can perform at least the following state transitions; a state change from the active data transmission state to the observe data transmission state at expiry of the second timer, a state change from the observe data transmission state to the inactive data transmission state at expiry of the first timer, a state change from the inactive data transmission state to the active data transmission state when a first state transition criterion has been met, and a state change from the observe data transmission state to the active data transmission state when a second state transition criterion has been met, wherein the first state transition criterion and the second state transition criterion are based on an activity or inactivity of the communication device, and wherein the three useful data transmission states are substates from at least one of a CELL_DCH state or a Long_Term_Evolution_Active state. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28)
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29. A method for operating a communication device, comprising:
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operating the communication device in an active data transmission state of a data link layer, in which a first useful data communication link with first communication resources is allocated to the communication device; performing, by the communication device, a state change from the active data transmission state to an observe data transmission state of the data link layer based on expiry of an activity timer associated with the active data transmission state, wherein in the observe data transmission state a second useful data communication link with the first communication resources is allocated to the communication device; performing, by the communication device, a state change from the observe data transmission state to an inactive data transmission state of the data link layer based on expiry of an inactivity timer associated with the observe data transmission state, wherein in the inactive data transmission state a useful data communication link with second communication resources is allocated to the communication device, the second communication resources being fewer than the first communication resources; performing, by the communication device, a state change from the inactive data transmission state to the active data transmission state when a first state transition criterion has been met; and performing, by the communication device, a state change from the observe data transmission state to the active data transmission state when a second state transition criterion has been met, wherein the first state transition criterion and the second state transition criterion are based on an activity or inactivity of the communication device, wherein the active data transmission state, the observe data transmission state, and the inactive data transmission state are substates from a first radio resource control (“
RRC”
) protocol state from a plurality of RRC protocol states, the plurality of RRC protocol states to include at least one of a CELL_DCH state or a Long_Term_Evolution_Active state.
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30. A computer program element including a non-transitory memory for storing instructions which, when executed by a processor, comprises:
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operating a communication device in an active data transmission state of a data link layer, in which a first useful data communication link with first communication resources is allocated to the communication device; performing, by the communication device, a state change from the active data transmission state to an observe data transmission state of the data link layer based on expiry of an active timer associated with the active data transmission state, wherein in the observe data transmission state a second useful data communication link with the first communication resources is allocated to the communication device; performing, by the communication device, a state change from the observe data transmission state to an inactive data transmission state of the data link layer based on expiry of an inactivity timer associated with the active data transmission state, wherein in the inactive data transmission state a useful data communication link with second communication resources is allocated to the communication device, the second communication resources being fewer than the first communication resources; performing, by the communication device, a state change from the inactive data transmission state to the active data transmission state when a first state transition criterion has been met; and performing, by the communication device, a state change from the observe data transmission state to the active data transmission state when a second state transition criterion has been met, wherein the first state transition criterion and the second state transition criterion are based on an activity or inactivity of the communication device, wherein the active data transmission state, the observe data transmission state and the inactive data transmission state are substates from a first radio resource control (“
RRC”
) protocol state from a plurality of RRC protocol states, the plurality of RRC protocol states to include at least one of a CELL_DCH state or a Long_Term_Evolution_Active state.
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31. A communication device comprising:
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a state control means for operating the communication device in at least three useful data transmission states that include; an active data transmission state of a data link layer, in which a first useful data communication link with first communication resources is allocated to the communication device, an observe data transmission state of the data link layer, in which a second useful data communication link with the first communication resources is allocated to the communication device, and an inactive data transmission state of the data link layer, in which a useful data communication link with second communication resources is allocated to the communication device, the second communication resources being fewer than the first communication resources; a first timer, associated with the observe data transmission state, to start based on use of one or more transport channels by a Medium Access Control layer to send data to a physical layer; a second timer, associated with the active data transmission state, to initially start after the first useful data communication link allocation with the first communication resources; and a state transition control means for performing at least the following state transitions; a state change from the active data transmission state to the observe data transmission state at expiry of the second timer, a state change from the observe data transmission state to the inactive data transmission state at expiry of the first timer, a state change from the inactive data transmission state to the active data transmission state when a first state transition criterion has been met, and a state change from the observe data transmission state to the active data transmission state when a second state transition criterion has been met, wherein the first state transition criterion and the second state transition criterion are based on an activity or inactivity of the communication device, wherein the three useful data transmission states are substates from a first radio resource control (“
RRC”
) protocol state from a plurality of RRC protocol states, the plurality of RRC protocol states to include at least one of a CELL_DCH state or a Long_Term_Evolution_Active state.
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Specification