Method and apparatus for operating a radiotelephone in an extended stand-by mode of operation for conserving battery power
First Claim
1. A method for reducing the power consumption of a radiotelephone, comprising the steps of:
- receiving at least a Word Synchronization pattern during a transmitted frame;
receiving a first repeat of a message that follows the Word Synchronization pattern within the frame;
determining if the first repeat was correctly received;
if the first repeat was correctly received, determining if at least one reception-related criterion is met, wherein the at least one reception-related criterion is indicative of a characteristic of a received signal during a period of time that precedes the reception of at least the Word Synchronization pattern during the transmitted frame; and
if the at least one reception-related criterion is determined to be met, selectively removing operating power from one or more portions of the radiotelephone for a predetermined time period during a remainder of the frame.
1 Assignment
0 Petitions
Accused Products
Abstract
This invention provides a method, and apparatus for performing the method, for reducing the power consumption of a radiotelephone. The method includes the steps of (a) receiving with a receiver of a radiotelephone at least a Word Synchronization pattern from a frame that is transmitted over a control channel; (b) receiving a first repeat of a control message that follows the Word Synchronization pattern within the frame; and (c) determining if the first repeat was correctly received. If the first repeat was correctly received, the method includes a further step of (d) determining if at least one reception-related criteria is met. If the reception-related criteria is determined to be met, the method includes a further step of (e) selectively removing operating power from one or more portions of the radiotelephone receiver for a predetermined time period during a remainder of the frame. The at least one reception-related criteria is a Message Error Rate (MER) that indicates a number of correctly received frames out of a total number of n last received frames. The reception-related criteria may also include a difference between a minimum Received Signal Strength Indicator (RSSI) value and a maximum RSSI value that are detected during a predetermined interval of time.
-
Citations
28 Claims
-
1. A method for reducing the power consumption of a radiotelephone, comprising the steps of:
-
receiving at least a Word Synchronization pattern during a transmitted frame; receiving a first repeat of a message that follows the Word Synchronization pattern within the frame; determining if the first repeat was correctly received; if the first repeat was correctly received, determining if at least one reception-related criterion is met, wherein the at least one reception-related criterion is indicative of a characteristic of a received signal during a period of time that precedes the reception of at least the Word Synchronization pattern during the transmitted frame; and if the at least one reception-related criterion is determined to be met, selectively removing operating power from one or more portions of the radiotelephone for a predetermined time period during a remainder of the frame. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
-
-
16. A radiotelephone, comprising:
-
means for receiving at least a Word Synchronization pattern during a frame that is transmitted over a control channel; means for receiving a first repeat of a control message that follows the Word Synchronization pattern within the frame; means for determining if the first repeat was correctly received; means, responsive to the first repeat being correctly received, for determining if at least one reception-related criterion is met, wherein the at least one reception-related criterion is indicative of a characteristic of a received signal during a period of time that precedes the reception of at least the Word Synchronization pattern during the transmitted frame; and means, responsive to the at least one reception-related criterion being determined to be met, for selectively removing operating power from one or more portions of a receiver of the radiotelephone for a predetermined time period during a remainder of the frame. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23, 24)
-
-
25. A method for reducing the power consumption of a radiotelephone, comprising the steps of:
-
receiving with a radiotelephone at least a Word Synchronization pattern from a frame that is transmitted over an RF link; receiving a first repeat of a message that follows the Word Synchronization pattern within the frame; determining if the first repeat was correctly received; if the first repeat was correctly received, determining if a predetermined criterion is met, the predetermined criterion being a function of at least a quality of the RF link over a period of time that precedes the reception of the Word Synchronization pattern; and if the predetermined criterion is determined to be met, selectively removing operating power from one or more portions of the radiotelephone for a predetermined time period during a remainder of the frame. - View Dependent Claims (26, 27, 28)
-
Specification