Methods and apparatus for communicating information using various transmission power levels
First Claim
1. A method of operating a wireless communications device to communicate information, comprising:
- transmitting data, during a constant transmission power mode of operation, at a constant transmission power level; and
transmitting data, during a time varying transmission power mode of operation, using a power level that varies as a function of time according to a predetermined repeating time varying transmission power level pattern wherein transmitting data, during the time varying transmission power mode of operation, includes transmitting the same peer discovery information multiple times, at different power levels, during different peer discovery transmission time periods.
1 Assignment
0 Petitions
Accused Products
Abstract
A wireless communications device supports a constant transmission power mode of operation and a time varying transmission power mode of operation for transmitting data, e.g., peer discovery data. The device determines an amount of network congestion and switches between the two modes of operation as a function of the determined amount of network congestion. Various described methods and apparatus are well suited for use in a peer to peer ad hoc wireless communications system in which a limited amount of air link resources are available for peer discovery signaling and the same peer discovery resources are, at times, used concurrently by multiple devices. When network congestion is low, the device operates in the constant transmission power mode. When network congestion is high, the device operates in the time varying power mode. Devices sharing a common peer discovery resource in a local area intentionally select different time varying transmission patterns.
25 Citations
24 Claims
-
1. A method of operating a wireless communications device to communicate information, comprising:
-
transmitting data, during a constant transmission power mode of operation, at a constant transmission power level; and transmitting data, during a time varying transmission power mode of operation, using a power level that varies as a function of time according to a predetermined repeating time varying transmission power level pattern wherein transmitting data, during the time varying transmission power mode of operation, includes transmitting the same peer discovery information multiple times, at different power levels, during different peer discovery transmission time periods. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
-
-
11. A wireless communications device comprising:
-
means for transmitting data, during a constant transmission power mode of operation, at a constant transmission power level; and means for transmitting data, during a time varying transmission power mode of operation, using a power level that varies as a function of time according to a predetermined repeating time varying transmission power level pattern wherein said means for transmitting during the time varying transmission power mode of operation transmits the same peer discovery information multiple times, at different power levels, during different peer discovery transmission time periods. - View Dependent Claims (12, 13, 14, 15, 16, 17)
-
-
18. A computer program product for use in a wireless communications device, the computer program product comprising:
a non-transitory computer readable medium comprising; code for causing at least one computer to transmit data, during a constant transmission power mode of operation, at a constant transmission power level; and code for causing the at least one computer to transmit data, during a time varying transmission power mode of operation, using a power level that varies as a function of time according to a predetermined repeating time varying transmission power level pattern wherein transmitting data, during the time varying transmission power mode of operation, includes transmitting the same peer discovery information multiple times, at different power levels, during different peer discovery transmission time periods. - View Dependent Claims (19)
-
20. A wireless communications device comprising:
-
at least one processor configured to; transmit data, during a constant transmission power mode of operation, at a constant transmission power level; and transmit data, during a time varying transmission power mode of operation, using a power level that varies as a function of time according to a predetermined repeating time varying transmission power level pattern; and a memory coupled to said at least one processor wherein transmitting data, during the time varying transmission power mode of operation, includes transmitting the same peer discovery information multiple times, at different power levels, during different peer discovery transmission time periods. - View Dependent Claims (21, 22, 23, 24)
-
Specification