Channel detection method, terminal and base station
First Claim
1. A channel detection method applied when an LTE system works in an unlicensed frequency band, characterized in comprising:
- determining a current sub-frame and a channel detection time when a data traffic arrives, wherein the channel detection time is set in at least one of the current sub-frame and a next adjacent sub-frame to perform channel state detection, and judging whether the terminal or base station that performs the channel state detection and other terminals or base stations concurrently performing data transmission with the terminal or base station that performs the channel state detection belong to a same telecommunication operator;
if it is judged that the terminal or base station that performs the channel state detection and other terminals or base stations belong to a same telecommunication operator,subtracting a second power of the other terminals or base stations from a first power detected by said terminal or base station that performs the channel state detection so as to attain a third power, and comparing the third power with a first channel busy-idle threshold value in order to perform the channel state detection;
orsetting a second channel busy-idle threshold value according to the distribution of all the base stations belonging to the same telecommunication operator, and comparing the power detected by the terminal or base station with the second channel busy-idle threshold value in order to perform the channel state detection, wherein the second channel busy-idle threshold value includes the power of the other terminals or base stations;
andperforming data traffic transmission when it is detected that the channel is in an idle state.
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Abstract
In one aspect of the disclosure, a channel detection method applied when an LTE system works in an unlicensed frequency band comprises determining a current sub-frame and a channel detection time when a data traffic arrives, wherein the channel detection time is set in at least one of the current sub-frame and a next adjacent sub-frame to perform channel state detection, and judging whether the terminal or base station that performs the channel state detection and other terminals or base stations belong to a same telecommunication operator in order to perform the channel state detection in a corresponding way; and performing data traffic transmission when it is detected that the channel is in an idle state. Other aspects of the disclosure relates to a terminal and a base station using the channel detection method.
11 Citations
18 Claims
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1. A channel detection method applied when an LTE system works in an unlicensed frequency band, characterized in comprising:
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determining a current sub-frame and a channel detection time when a data traffic arrives, wherein the channel detection time is set in at least one of the current sub-frame and a next adjacent sub-frame to perform channel state detection, and judging whether the terminal or base station that performs the channel state detection and other terminals or base stations concurrently performing data transmission with the terminal or base station that performs the channel state detection belong to a same telecommunication operator; if it is judged that the terminal or base station that performs the channel state detection and other terminals or base stations belong to a same telecommunication operator, subtracting a second power of the other terminals or base stations from a first power detected by said terminal or base station that performs the channel state detection so as to attain a third power, and comparing the third power with a first channel busy-idle threshold value in order to perform the channel state detection;
orsetting a second channel busy-idle threshold value according to the distribution of all the base stations belonging to the same telecommunication operator, and comparing the power detected by the terminal or base station with the second channel busy-idle threshold value in order to perform the channel state detection, wherein the second channel busy-idle threshold value includes the power of the other terminals or base stations; and performing data traffic transmission when it is detected that the channel is in an idle state. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A terminal, characterized in comprising a communication bus, a network port, a memory and a processor, wherein:
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the communication bus is for communicably interconnecting the network port, the memory and the processor; the network port is for performing data traffic transmission; the memory stores program codes, and execution of the program codes by the processor causes the processor to determine a current sub-frame and a channel detection time when a data traffic arrives, wherein the channel detection time is set in at least one of the current sub-frame and a next adjacent sub-frame to perform channel state detection, and judging whether the terminal that performs the channel state detection and other terminals or base stations concurrently performing data transmission with the terminal or base station that performs the channel state detection belong to a same telecommunication operator; if it is judged that the terminal that performs the channel state detection and other terminals or base stations belong to a same telecommunication operator, subtracting a second power of the other terminals or base stations from a first power detected by said terminal that performs the channel state detection so as to attain a third power, and comparing the third power with a first channel busy-idle threshold value in order to perform the channel state detection;
orsetting a second channel busy-idle threshold value according to the distribution of all the base stations belonging to the same telecommunication operator, and comparing the power detected by the terminal with the second channel busy-idle threshold value in order to perform the channel state detection, wherein the second channel busy-idle threshold value includes the power of the other terminals or base stations; and perform data traffic transmission when it is detected that the channel is in an idle state. - View Dependent Claims (16)
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17. A base station, characterized in comprising a communication bus, a network port, a memory and a processor, wherein:
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the communication bus is for communicably interconnecting the network port, the memory and the processor; the network port is for performing data traffic transmission; the memory stores program codes, and execution of the program codes by the processor causes the processor to determine a current sub-frame and a channel detection time when a data traffic arrives, wherein the channel detection time is set in at least one of the current sub-frame and a next adjacent sub-frame to perform channel state detection, and judging whether the base station that performs the channel state detection and other terminals or base stations concurrently performing data transmission with the terminal or base station that performs the channel state detection belong to a same telecommunication operator; if it is judged that the base station that performs the channel state detection and other terminals or base stations belong to a same telecommunication operator, subtracting a second power of the other terminals or base stations from a first power detected by said base station that performs the channel state detection so as to attain a third power, and comparing the third power with a first channel busy-idle threshold value in order to perform the channel state detection;
orsetting a second channel busy-idle threshold value according to the distribution of all the base stations belonging to the same telecommunication operator, and comparing the power detected by the base station with the second channel busy-idle threshold value in order to perform the channel state detection, wherein the second channel busy-idle threshold value includes the power of the other terminals or base stations; and perform data traffic transmission through the network port when it is detected that the channel is in an idle state. - View Dependent Claims (18)
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Specification