Abstract
To measure the channel quality of the own cell accurately in a condition where there is no interference from a neighbor cell. A wireless communication terminal according to the invention is a wireless communication terminal to be connected to a base station for transmitting and receiving data to/from the base station the wireless communication terminal including: a receiver that receives a signal which includes control information provided for measuring a channel quality of own cell from the base station; an extractor that extracts the control information from the signal received by the receiver; a measurement section that measures on the basis of the control information the channel quality of the own cell in a domain where a neighbor cell does not transmit a signal; and a transmitter that transmits a measurement result of the channel quality of the own cell measured by the measurement section to the base station.
Technology | Declaration Information | Specification Information | Explicitly Disclosed | Patent Type | |||||
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Declaration Date | Declaration Reference | Declaring Company | Specification Information | ||||||
4G | 06/08/2013 | ISLD-201309-038 | PANASONIC CORP |
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4G | 21/09/2018 | ISLD-201812-010 | SUN PATENT TRUST | Yes | Family Member | ||||
4G | 14/12/2020 | ISLD-202012-017 | SUN PATENT TRUST |
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Specification Information
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WO2010131487A1 | 4G | 06/08/2013 | ISLD-201309-038 | PANASONIC CORP |
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Yes | Family Member | |||
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EP2432291A1 | 4G | 14/12/2020 | ISLD-202012-017 | SUN PATENT TRUST |
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Yes | Family Member | |||
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Yes | Family Member | |||
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Yes | Family Member | |||
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KR101654396B1 | 4G | 14/12/2020 | ISLD-202012-017 | SUN PATENT TRUST |
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Yes | Family Member | |||
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KR20120016223A | 4G | 14/12/2020 | ISLD-202012-017 | SUN PATENT TRUST |
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Technologies
Product
Use Cases
Services
Claim
1. A terminal apparatus that receives signals from a first cell to which the terminal apparatus belongs and from a second cell, the terminal apparatus comprising:
a radio receiver, which, in operation, receives information indicating subframes that include a subframe in which no downlink data is transmitted by the second cell, and receives a reference signal that is transmitted from the first cell to which the terminal apparatus belongs and that is transmitted on the subframe in which no downlink data is transmitted by the second cell; and
a Channel Quality Indicator (CQI) measurement circuit, which, in operation, measures CQI using the received reference signal that is transmitted on the subframe in which no downlink data is transmitted by the second cell,
wherein the CQI measurement circuit, in operation, measures the CQI for a subframe, in which the second cell causes no interference to the first cell to which the terminal apparatus belongs, based on said information.
2. The terminal apparatus according to claim 1, wherein the second cell is a neighbor cell to the first cell.
3. The terminal apparatus according to claim 1, wherein the second cell causes interference to the first cell to which the terminal apparatus belongs.
4. The terminal apparatus according to claim 1, wherein the subframe is a Multicast/Broadcast over Single Frequency Network (MBSFN) subframe.
5. The terminal apparatus according to claim 1, wherein the subframes indicated by said information are different depending on a cell.
6. The terminal apparatus according to claim 1, wherein the reference signal used to measure the CQI is mapped on or after the third symbol in a subframe of the first cell to which the terminal apparatus belongs.
7. The terminal apparatus according to claim 1, wherein the reference signal used to measure the CQI is mapped on the seventh symbol in a subframe of the first cell to which the terminal apparatus belongs.
8. A communication method performed by a terminal apparatus that receives signals from a first cell to which the terminal apparatus belongs and from a second cell, the method comprising:
receiving information indicating subframes that include a subframe in which no downlink data is transmitted by the second cell;
receiving a reference signal that is transmitted from the first cell to which the terminal apparatus belongs and that is transmitted on the subframe in which no downlink data is transmitted by the second cell; and
measuring Channel Quality Indicator (CQI) using the received reference signal that is transmitted on the subframe in which no downlink data is transmitted by the second cell,
wherein the measuring includes measuring of the CQI for a subframe, in which the second cell causes no interference to the first cell to which the terminal apparatus belongs, based on said information.
9. The communication method according to claim 8, wherein the second cell is a neighbor cell to the first cell.
10. The communication method according to claim 8, wherein the second cell causes interference to the first cell to which the terminal apparatus belongs.
11. The communication method according to claim 8, wherein the subframe is a Multicast/Broadcast over Single Frequency Network (MBSFN) subframe.
12. The communication method according to claim 8, wherein the subframes indicated by said information are different depending on a cell.
13. The communication method according to claim 8, wherein the reference signal used to measure the CQI is mapped on or after the third symbol in a subframe of the first cell to which the terminal apparatus belongs.
14. The communication method according to claim 8, wherein the reference signal used to measure the CQI is mapped on the seventh symbol in a subframe of the first cell to which the terminal apparatus belongs.
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The information in grey was provided by the patent holder
The information in purple was extracted from the FrandAvenue
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