Multi-detection of heartbeat to reduce error probability
First Claim
1. A wireless transmit receive unit (WTRU) comprising:
- a receiver configured to receive at least one signal having a first indication of a first communications state, and a second indication for a request to change to a second communications state;
wherein the first indication has a first energy level and further wherein the second indication has a second energy level;
at least one monitor configured to monitor at least one first time slot for detecting the first indication, and at least one second time slot for detecting the second indication;
a counter coupled to the at least one monitor configured to count at least one of the detected first or second indications; and
a processor coupled to the counter configured to determine whether a request to change communications states has been performed based on the counting and based further on a difference in energy levels of the first and second indications.
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Accused Products
Abstract
A communications system improves performance of detecting a signal having an indication of a request to change communications states by making at least two positive identifications of the request in a given time frame. The system may further improve performance by applying a difference in power levels for a non-request state (i.e., steady state or ‘control hold’ state) versus a request state (i.e., ‘request to change’ state). In one particular application, a base station determines a request to change communications states with a reasonably high probability of detection and a reasonably low probability of false detection. The system has a reduced number of erroneous communications states, such as erroneous traffic channel allocations. The detection technique is compatible with 1xEV-DV systems and I-CDMA systems, but general enough to support systems employing various other communications protocols used in wired and wireless communications systems.
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Citations
19 Claims
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1. A wireless transmit receive unit (WTRU) comprising:
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a receiver configured to receive at least one signal having a first indication of a first communications state, and a second indication for a request to change to a second communications state; wherein the first indication has a first energy level and further wherein the second indication has a second energy level; at least one monitor configured to monitor at least one first time slot for detecting the first indication, and at least one second time slot for detecting the second indication; a counter coupled to the at least one monitor configured to count at least one of the detected first or second indications; and a processor coupled to the counter configured to determine whether a request to change communications states has been performed based on the counting and based further on a difference in energy levels of the first and second indications. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A method for use in a wireless transmit receive unit (WTRU), the method comprising:
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receiving at least one signal having a first indication of a first communications state, and a second indication for a request to change to a second communications state; wherein the first indication has a first energy level and further wherein the second indication has a second energy level; monitoring at least one first time slot for detecting the first indication, and at least one second time slot for detecting the second indication; counting, via a counter, at least one of the detected first or second indications and storing a count; and determining, via a processor coupled to the counter, whether a request to change communications states has been performed based on the counting and based further on a difference in energy levels of the first and second indications. - View Dependent Claims (8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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Specification