Method for adjusting acquisition speed in a wireless network
AssigneeFreescale Semiconductor, Inc.
InventorRichard D. Roberts
Life of this patent
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Abstract
A method is provided for acquiring incoming signals in a wireless network device. This method uses three different types of preamble: a normal preamble, a short preamble, and a long preamble. One of these preambles will be used as a default preamble. Then, depending upon signal parameters, the device can change from one preamble to another, trading off data transmission speed and acquisition time to achieve the maximum data transmission speed by using the minimum acquisition time. These signal parameters could be signal strength, the number of packet retransmissions the device must request, or any other metric that is required. And thresholds will vary with the quality of service.
Claims16
A method of acquiring incoming signals in a wireless network device, comprising:
- acquiring the incoming signals using a default acquisition preamble having a default synchronization period;
- evaluating the incoming signals to determine whether first signal parameters are met;
- changing to a first alternate acquisition preamble having a first alternate synchronization period if the first signal parameters are met;
- evaluating the incoming signals to determine whether second signal parameters are met;
- and
- changing to a second alternate acquisition preamble having a second alternate synchronization period if the second parameters are met,
- wherein the default synchronization period, the first alternate synchronization period, and the second alternate synchronization period all have different values.
A method of acquiring incoming signals in a wireless network device, comprising:
- acquiring the incoming signals using a default acquisition preamble having a default synchronization period;
- evaluating the incoming signals to determine whether ith signal parameters are met;
- and
- changing to an ith alternate acquisition preamble having an ith synchronization period if the ith signal parameters are met,
- wherein k is an integer greater than 1,
- wherein i is an integer that varies from 1 to k,
- wherein the first through kth synchronization periods all have different values, and
- wherein the first through kth signal parameters are mutually exclusive.
Dependencies are inferred from the claim text.