US 8,620,332 B2 · Wireless timing and power control

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.

Claims20

Dependent claims

A communications method, the method comprising:

operating a wireless terminal, 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 causes the wireless terminal to monitor an assignment control channel, a fast paging channel, and a slow paging channel;
wherein operating the wireless terminal in the second state causes the wireless terminal to monitor the fast paging channel, and the slow paging channel, and causes the wireless terminal not to monitor the assignment control channel;
wherein operating the wireless terminal in the third state causes the wireless terminal to monitor the slow paging channel, and causes the wireless terminal not to monitor the assignment control channel and the fast paging channel;
and
wherein the fast paging channel is employed to receive one or more commands instructing the wireless terminal to transition between the operational states.

3 more elements

A wireless terminal, comprising:

a device status control module 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 a first state, a second state and a third state;
wherein operating the wireless terminal in the first state causes the wireless terminal to monitor an assignment control channel, a fast paging channel, and a slow paging channel;
wherein operating the wireless terminal in the second state causes the wireless terminal to monitor the fast paging channel, and the slow paging channel, and causes the wireless terminal not to monitor the assignment control channel;
and
wherein operating the wireless terminal in the third state causes the wireless terminal to monitor the slow paging channel, and causes the wireless terminal not to monitor the assignment control channel and the fast paging channel.

2 more elements

A wireless terminal, comprising:

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 a first state, a second state and a third state;
wherein operating the wireless terminal in the first state causes the wireless terminal to monitor an assignment control channel, a fast paging channel, and a slow paging channel;
wherein operating the wireless terminal in the second state causes the wireless terminal to monitor the fast paging channel, and the slow paging channel, and causes the wireless terminal not to monitor the assignment control channel;
wherein operating the wireless terminal in the third state causes the wireless terminal to monitor the slow paging channel, and causes the wireless terminal not to monitor the assignment control channel and the fast paging channel;
and
means for receiving the assignment control channel, the fast paging channel, and the slow paging channel.

3 more elements

Dependencies are inferred from the claim text.

Wireless timing and power control

Life of this patent

Wireless timing and power control

Life of this patent

Abstract

Claims20