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US 10,375,595 B2Granted
Measurement and report of signal transmissions in LTE/LTE-A including contention-based shared spectrum
AssigneeQUALCOMM Incorporated
InventorsXiaoxia Zhang, Wei Zhang, Tao Luo
Life of this patent
Estimating the term…
Abstract
Reporting and measurements of measurement signals transmitted as a part of LTE/LTE-A networks that include contention-based spectrum is disclosed. In one aspect, a user equipment (UE) performs measurement signal thresholding by estimating the noise associated with the measurement signal. The UE would then use a measured parameter of that signal based on the measurement signal exceeding the threshold as a candidate for a valid measured parameter.
Claims24
A method of wireless communication, comprising:
- receiving by a processor, a signal over a contention-based frequency spectrum;
- measuring, by the processor, a signal parameter based on the received signal;
- estimating, by the processor, a quality of the received signal, wherein the estimating the quality includes measuring an interference level on the received signal;
- determining, by the processor, whether the quality of the received signal exceeds a predetermined quality threshold;
- in response to determining that the quality of the received signal exceeds the predetermined quality threshold, processing, by the processor, the signal parameter for reporting to a base station, wherein the determining that the quality of the received signal exceeds the predetermined quality threshold indicates that:
- the received signal was not subject to an interference level sufficient to render the measured signal parameter invalid;
- and
- the received signal includes a reference signal;
- and
- in response to determining that the quality of the received signal does not meet the predetermined quality threshold, excluding, by the processor, the processing of the signal parameter for reporting to the base station, wherein the determining that the quality of the received signal does not meet the predetermined quality threshold indicates that at least one of:
- the received signal was subject to an interference level sufficient to render the measured signal parameter invalid;
- and
- the received signal does not include the reference signal.
10 more elements
An apparatus configured for wireless communication, comprising:
- means for receiving a signal over a contention-based frequency spectrum;
- means for measuring a signal parameter based on the received signal;
- means for estimating a quality of the received signal, wherein the estimating the quality includes measuring an interference level on the received signal;
- means for determining whether the quality of the received signal exceeds a predetermined quality threshold;
- means, executable in response to a determination that the quality of the received signal exceeds the predetermined quality threshold, for processing the signal parameter for reporting to a base station, wherein the determination that the quality of the received signal exceeds the predetermined quality threshold indicates that:
- the received signal was not subject to an interference level sufficient to render the measured signal parameter invalid;
- and
- the received signal includes a reference signal;
- and
- means, executable in response to a determination that the quality of the received signal does not meet the predetermined quality threshold, for excluding the processing of the signal parameter for reporting to the base station, wherein the determination that the quality of the received signal does not meet the predetermined quality threshold indicates that at least one of:
- the received signal was subject to an interference level sufficient to render the measured signal parameter invalid;
- and
- the received signal does not include the reference signal.
10 more elements
A non-transitory computer-readable medium having program code recorded thereon, the program code comprising:
- program code for causing a computer to receive a signal over a contention-based frequency spectrum;
- program code for causing the computer to measure a signal parameter based on the received signal;
- program code for causing the computer to estimate a quality of the received signal, wherein the estimating the quality includes measuring an interference level on the received signal;
- program code for causing the computer to determine whether the quality of the received signal exceeds a predetermined quality threshold;
- program code, executable in response to execution of the program code for causing the computer to determine that the quality of the received signal exceeds the predetermined quality threshold, for causing the computer to process the signal parameter for reporting to a base station, wherein a determination that the quality of the received signal exceeds the predetermined quality threshold indicates that:
- the received signal was not subject to an interference level sufficient to render the measured signal parameter invalid;
- and
- the received signal includes a reference signal;
- and
- program code, executable in response to execution of the program code for causing the computer to determine that the quality of the received signal does not meet the predetermined quality threshold, for causing the computer to exclude the processing of the signal parameter for reporting to the base station, wherein a determination that the quality of the received signal does not meet the predetermined quality threshold indicates that at least one of:
- the received signal was subject to an interference level sufficient to render the measured signal parameter invalid;
- and
- the received signal does not include the reference signal.
10 more elements
An apparatus configured for wireless communication, the apparatus comprising:
- at least one processor;
- and
- a memory coupled to the at least one processor,
- wherein the at least one processor is configured:
- to receive a signal over a contention-based frequency spectrum;
- to measure a signal parameter based on the received signal;
- to determine whether the quality of the received signal exceeds a predetermined quality threshold;
- to estimate a quality of the received signal, wherein the estimating the quality includes measuring an interference level on the received signal;
- and
- to process the signal parameter for reporting to a base station in response to a determination that the quality of the received signal exceeds the predetermined quality threshold, wherein the determination that the quality of the received signal exceeds the predetermined quality threshold indicates that:
- the received signal was not subject to an interference level sufficient to render the measured signal parameter invalid;
- and
- the received signal includes a reference signal;
- and
- to exclude processing of the signal parameter for reporting to a base station in response to a determination that the quality of the received signal does not meet the predetermined quality threshold, wherein a determination that the quality of the received signal does not meet the predetermined quality threshold indicates that at least one of:
- the received signal was subject to an interference level sufficient to render the measured signal parameter invalid;
- and
- the received signal does not include the reference signal.
15 more elements
Dependencies are inferred from the claim text.