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US 8,570,926 B2Granted
Method and apparatus for inferring state transitions in a wireless communications network
AssigneeAT&T Intellectual Property I, L.P.
InventorsAlexandre Gerber, Zhuoqing Mao, Feng Qian, Subhabrata Sen, Oliver Spatscheck, Zhaoguang Wang
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Abstract
A method, a computer readable medium and an apparatus for inferring state transitions in a wireless communications network are disclosed. In one embodiment, the method infers a state promotion procedure. In another embodiment, the method infers a state demotion procedure.
Claims20
A method for inferring a state promotion procedure of a radio resource controller state machine in a network, comprising:
- setting, via a processor of a user endpoint device, a radio resource control state for the user endpoint device to a first state, wherein the first state is associated with a first level of a radio resource;
- sending, via the processor, a first number of packets from the user endpoint device to a radio network controller, wherein a size of the first number of packets does not trigger a promotion from a second state to a third state, wherein the second state is associated with a second level of the radio resource, wherein the third state is associated with a third level of the radio resource, wherein the second level of the radio resource is larger than the first level of the radio resource and the third level of the radio resource is larger than the second level of the radio resource;
- receiving, via the processor, a first set of echoes associated with the first number of packets;
- sending, via the processor, a second number of packets from the user endpoint device to the radio network controller, wherein a size of the second number of packets triggers a promotion from the second state to the third state;
- receiving, via the processor, a second set of echoes associated with the second number of packets;
- determining, via the processor, a round trip transmission time for sending the second number of packets and receiving the second set of echoes;
- determines, via the processor, if the round trip transmission time is larger than a normal round trip transmission time between the user endpoint device and the radio network controller by a predetermined length of time;
- inferring, via the processor, that the promotion procedure is a promotion from the first state to the second state and then to the third state, when the round trip transmission time is larger than the normal round trip transmission time between the user endpoint device and the radio network controller by the predetermined length of time;
- and
- inferring, via the processor, that the promotion procedure is a promotion from the first state to the third state, when the round trip transmission time is not larger than the normal round trip transmission time between the user endpoint device and the radio network controller by the predetermined length of time.
7 more elements
A method for inferring a state demotion procedure of a radio resource controller state machine in a network, comprising:
- setting, via a processor of a user endpoint device, a parameter for a number of runs to be performed;
- performing, via the processor, a first test and a second test for each of the number of runs to be performed, wherein the first test provides a first round trip transmission time, and the second test provides a second round trip transmission time,
- determining, via the processor, if a difference between the first round trip transmission time and the second round trip transmission time is smaller than a predetermined length of time;
- inferring, via the processor, that the state demotion procedure is from a third state to a second state, when the difference between the first round trip transmission time and the second round trip transmission time is smaller than the predetermined length of time;
- and
- inferring, via the processor, that the state demotion procedure is a demotion from the third state to the second state followed by a demotion to a first state, when the difference between the first round trip transmission time and the second round trip transmission time is not smaller than the predetermined length of time, wherein each of the first state, the second state and the third state is associated with a different level of a radio resource.
3 more elements
Dependencies are inferred from the claim text.