Method and apparatus for adaptively selecting a communication strategy in a selective call radio communication system
First Claim
1. A method of adaptively selecting a communication strategy for communicating a message in a selective call radio communication system comprising a fixed portion and a portable portion, the method comprising:
- in the fixed portion the steps of;
transmitting, by utilizing a predetermined original transmission strategy, an alert signal to the portable portion;
thereafter awaiting an acknowledgment signal comprising a signal quality estimate from the portable portion; and
selecting, in response to receiving the acknowledgment signal, a transmission strategy for sending the message from a plurality of predetermined transmission strategies corresponding to a plurality of ranges of value of the signal quality estimate, wherein the transmission strategy is selected in accordance with the signal quality estimate, and wherein the transmission strategy requires a matching reception strategy in the portable portion for compatibility; and
in the portable portion the steps of;
receiving the alert signal by utilizing a predetermined original reception strategy;
computing the signal quality estimate based at least in part upon the alert signal as received;
sending the acknowledgment signal to the fixed portion after computing the signal quality estimate; and
thereafter selecting the matching reception strategy for receiving the message from a plurality of predetermined reception strategies corresponding to the plurality of ranges of value of the signal quality estimate, wherein the matching reception strategy is selected in accordance with the signal quality estimate sent in the acknowledgment signal without requiring further communication with the fixed portion.
4 Assignments
0 Petitions
Accused Products
Abstract
A method and apparatus adaptively selects a communication strategy for communicating a message in a selective call radio communication system including a fixed portion (100) and a portable portion (101). The fixed portion (100) transmits (402) an alert signal to the portable portion (101), and awaits (404) an acknowledgment signal including a signal quality estimate from the portable portion (101). The portable portion (101) receives (602) the alert signal, and computes (604, 606) the signal quality estimate therefrom. The portable portion (101) then sends (608) the acknowledgment signal to the fixed portion (100). In response to the acknowledgment signal, the fixed portion (100) selects (407) a transmission strategy in accordance with the signal quality estimate. For compatibility, the transmission strategy requires a matching reception strategy in the portable portion (101). After sending the acknowledgment signal, the portable portion (101) selects (609) the matching reception strategy in accordance with the signal quality estimate sent in the acknowledgment signal without requiring further communication with the fixed portion (100).
143 Citations
16 Claims
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1. A method of adaptively selecting a communication strategy for communicating a message in a selective call radio communication system comprising a fixed portion and a portable portion, the method comprising:
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in the fixed portion the steps of; transmitting, by utilizing a predetermined original transmission strategy, an alert signal to the portable portion; thereafter awaiting an acknowledgment signal comprising a signal quality estimate from the portable portion; and selecting, in response to receiving the acknowledgment signal, a transmission strategy for sending the message from a plurality of predetermined transmission strategies corresponding to a plurality of ranges of value of the signal quality estimate, wherein the transmission strategy is selected in accordance with the signal quality estimate, and wherein the transmission strategy requires a matching reception strategy in the portable portion for compatibility; and in the portable portion the steps of; receiving the alert signal by utilizing a predetermined original reception strategy; computing the signal quality estimate based at least in part upon the alert signal as received; sending the acknowledgment signal to the fixed portion after computing the signal quality estimate; and thereafter selecting the matching reception strategy for receiving the message from a plurality of predetermined reception strategies corresponding to the plurality of ranges of value of the signal quality estimate, wherein the matching reception strategy is selected in accordance with the signal quality estimate sent in the acknowledgment signal without requiring further communication with the fixed portion. - View Dependent Claims (2, 3, 4, 5, 6)
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7. Apparatus in a fixed portion of a selective call radio communication system comprising the fixed portion and a portable portion, the apparatus for adaptively selecting a communication strategy for communicating a message, the apparatus comprising:
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a transmitter for transmitting, by utilizing a predetermined original transmission strategy, an alert signal to the portable portion; a receiver for receiving an acknowledgment signal comprising a signal quality estimate sent from the portable portion in response to the alert signal; and a controller coupled to the transmitter and coupled to the receiver for controlling the transmitter and receiving the acknowledgment signal from the receiver, the controller comprising; a selector for selecting, in response to receiving the acknowledgment signal, a transmission strategy for sending the message from a plurality of predetermined transmission strategies corresponding to a plurality of ranges of value of the signal quality estimate, wherein the transmission strategy is selected in accordance with the signal quality estimate, and wherein the transmission strategy requires a matching reception strategy in the portable portion for compatibility; and a sender coupled to the selector for controlling the transmitter to send to the portable portion the message by utilizing the transmission strategy selected by the selector, without informing the portable portion that the transmission strategy is being utilized. - View Dependent Claims (8, 9, 10, 11)
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12. A selective call transceiver for adaptively selecting a communication strategy for communicating information including an alert signal and a message in a selective call radio communication system comprising a fixed portion and the selective call transceiver, the selective call transceiver comprising:
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an antenna for intercepting a radio signal by utilizing a predetermined original reception strategy; a receiver element coupled to the antenna for demodulating the radio signal to produce a demodulated signal comprising the alert signal; a microprocessor coupled to the receiver element for decoding the demodulated signal to derive the information; a signal quality estimation element coupled to the receiver element and coupled to the microprocessor for computing a signal quality estimate based at least in part upon the alert signal as received from the fixed portion; a transmitter coupled to the microprocessor for sending an acknowledgment signal comprising the signal quality estimate to the fixed portion, in response to receiving the alert signal; and a selector coupled to the microprocessor for selecting a reception strategy for receiving the message from a plurality of predetermined reception strategies corresponding to a plurality of ranges of value of the signal quality estimate, wherein the reception strategy is selected in accordance with the signal quality estimate sent in the acknowledgment signal without requiring further communication with the fixed portion, and wherein the reception strategy selected is uniquely compatible with a transmission strategy selected by the fixed portion in accordance with the signal quality estimate. - View Dependent Claims (13, 14, 15, 16)
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Specification