Abstract
provides a feedback from the user terminal sending mode from the plurality of transmission points the best channel quality information of the wireless communication system base station apparatus user terminal and a channel state information measurement method. wireless communication system of the present invention having a base station device and a user equipment the base station device includes: a determining part which determines reference signal expected to be allocated resources for signal estimation and for interference signal estimation of resource information of the resource; and a notification part notifying the resource information to the user terminal said user terminal comprises: a receiving part which receives resource information is notified to an estimating part desired signal estimate based on the resource information and the interference signal estimation and measurement unit using the estimation result of the estimation section for measuring channel state.
Provided are: a wireless communication system capable of causing channel quality information which is optimal for transmission formats from a plurality of transmission points to be fed back from a user terminal; a base station device; a user terminal; and a channel-state information measurement method. This wireless communication system is characterized by having: a determination unit for determining the resource information about resources for assigning a reference signal for desired signal estimation and resources for interference signal estimation; a base station device provided with a reporting unit for reporting the resource information to a user terminal; a receiving unit for receiving the reported resource information; an estimation unit for estimating the desired signal and the interference signal on the basis of the resource information; and a user terminal provided with a measurement unit for measuring the channel state by using the estimation result from the estimation unit.
| Technology | Declaration Information | Specification Information | Explicitly Disclosed | Patent Type | |||||
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| Declaration Date | Declaration Reference | Declaring Company | Specification Number | ||||||
| 4G | 03/03/2014 | ISLD-201401-012 | NTT DOCOMO INC | No | Family Member | ||||
| 4G | 16/06/2019 | ISLD-201906-021 | NTT DOCOMO INC | No | Family Member | ||||
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| 5G | 31/07/2019 | ISLD-201907-041 | NTT DOCOMO INC | Yes | Family Member | ||||
Specification Information
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Technologies
Family Information
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Technologies
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Wireless communication
Services
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Explicitly disclosed patent:openly and comprehensibly describes all details of the invention in the patent document.
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