Power and timing control methods and apparatus
First Claim
1. A method operating at least a wireless terminal, the method comprising:
- controlling said wireless terminal to operate, at different times, in each one of at least three different operational states, the three different operational states including a first state, a second state and a third state, wherein operating the wireless terminal in the first state includes communicating power control information between said wireless terminal and a base station at a first rate;
wherein operating the wireless terminal in the second state includes communicating power control information between said wireless terminal and the base station at a second rate, the second rate being lower than the first rate;
wherein power control information is not communicated between said base station and said wireless terminal while said wireless terminal is operating in the third state or is communicated between said base station and said wireless terminal at a rate which is lower than said second rate; and
wherein operating the wireless terminal in at least one of said second and said third states includes operating said wireless terminal for at least a period of 10 ms during which said wireless terminal does not transmit any signals.
3 Assignments
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Accused Products
Abstract
The use of multiple states of mobile communication device operation to allow a single base station to support a relatively large number of mobile nodes is described. The various states require different amounts of communications resources, e.g., bandwidth. Four supported states of operation are an on-state, a hold-state, a sleep-state, and an access-state. Each mobile node in the on-state is allocated communication resources to perform transmission power control signaling, transmission timing control signaling and to transmit data as part of a data uplink communications operation. Each mobile node in the hold-state is allocated communication resources to perform transmission timing control signaling and is provided a dedicated uplink for requesting a state transition and a shared resource for transmitting acknowledgements. In the sleep state a mobile node is allocated minimal resources and does not conduct power control signaling or timing control signaling. Data may be received in the on and hold states.
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Citations
44 Claims
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1. A method operating at least a wireless terminal, the method comprising:
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controlling said wireless terminal to operate, at different times, in each one of at least three different operational states, the three different operational states including a first state, a second state and a third state, wherein operating the wireless terminal in the first state includes communicating power control information between said wireless terminal and a base station at a first rate;
wherein operating the wireless terminal in the second state includes communicating power control information between said wireless terminal and the base station at a second rate, the second rate being lower than the first rate;
wherein power control information is not communicated between said base station and said wireless terminal while said wireless terminal is operating in the third state or is communicated between said base station and said wireless terminal at a rate which is lower than said second rate; and
wherein operating the wireless terminal in at least one of said second and said third states includes operating said wireless terminal for at least a period of 10 ms during which said wireless terminal does not transmit any signals. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A wireless terminal, comprising:
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control means for controlling said wireless terminal to operate, at different times, in each one of at least three different operational states, the three different operational states including an first state, a second state and a third state;
means for communicating power control information between said wireless terminal and a base station at a first rate while operating the wireless terminal in the first state;
means for communicating power control information between said wireless terminal and the base station at a second rate while operating the wireless terminal in the second state, the second rate being lower than the first rate;
wherein power control information is not communicated between said base station and said wireless terminal while said wireless terminal is operating in the third state or is communicated between said base station and said wireless terminal at a rate which is lower than said second rate; and
wherein operating the wireless terminal in at least one of said second and said third states includes operating said wireless terminal for at least a period of 10 ms during which said wireless terminal does not transmit any signals. - View Dependent Claims (18, 19)
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20. A method operating at least a wireless terminal, the method comprising:
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controlling said wireless terminal to operate, at different times, in each one of at least three different operational states, the three different operational states including an first state, a second state and a third state;
wherein operating the wireless terminal in the first state includes communicating power control information between said wireless terminal and a base station at a first rate;
wherein operating said wireless terminal in said second state, includes using a dedicated uplink communications resource to transmit information to said base station, said dedicated uplink communications resource being in addition to any power control signaling and timing control signaling communication resource used by said base station during said second state;
wherein power control information is not communicated between said base station and said wireless terminal while said wireless terminal is operating in the second state or is communicated between said base station and said wireless terminal at a rate which is lower than said first rate; and
wherein power control information is not communicated between said base station and said wireless terminal while said wireless terminal is operating in the third state or is communicated between said base station and said wireless terminal at a rate which is lower than said first rate. - View Dependent Claims (21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41)
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42. A wireless terminal comprising:
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control means for controlling said wireless terminal to operate, at different times, in each one of at least three different operational states, the three different operational states including an first state, a second state and a third state;
means for communicating power control information between said wireless terminal and a base station at a first rate while operating the wireless terminal in the first state;
means for using a dedicated uplink communications resource to transmit information to said base station, while operating said wireless terminal in said second state, said dedicated uplink communications resource being in addition to any power control signaling and timing control signaling communication resource used by said base station during said second state;
wherein power control information is not communicated between said base station and said wireless terminal while said wireless terminal is operating in the second state or is communicated between said base station and said wireless terminal at a rate which is lower than said first rate; and
wherein power control information is not communicated between said base station and said wireless terminal while said wireless terminal is operating in the third state or is communicated between said base station and said wireless terminal at a rate which is lower than said first rate. - View Dependent Claims (43, 44)
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Specification