RADIO BASE STATION, USER TERMINAL AND RADIO COMMUNICATION METHOD
First Claim
1. A radio base station in a heterogeneous network having a network configuration where a macro cell overlays a micro cell that is smaller than the macro cell, the radio base station comprising:
- a subframe determining section configured to generate a measurement subframe pattern to measure a channel state and a time reference indicating a pattern start timing of the measurement subframe pattern based on the network configuration; and
a transmitting section configured to transmit a signal including the measurement subframe pattern and the time reference to a user terminal.
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Accused Products
Abstract
Provided are a radio base station, a user terminal and a radio communication method capable of making accurate measurement in various network configurations in HetNet. The radio communication method according to the present invention has, in a heterogeneous network having a network configuration where a macro cell overlays a micro cell that is smaller than the macro cell, a radio base station that forms the macro cell and is connected to a macro terminal under control of the macro cell determining a measurement subframe to measure a CRS based on the network configuration, generating a time reference indicating the measurement subframe and transmitting a signal including the time reference and the CRS to the macro terminal; and the macro terminal receiving the time reference and the CRS and measuring the CRS in the measurement subframe indicated by the time reference.
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Citations
16 Claims
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1. A radio base station in a heterogeneous network having a network configuration where a macro cell overlays a micro cell that is smaller than the macro cell, the radio base station comprising:
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a subframe determining section configured to generate a measurement subframe pattern to measure a channel state and a time reference indicating a pattern start timing of the measurement subframe pattern based on the network configuration; and a transmitting section configured to transmit a signal including the measurement subframe pattern and the time reference to a user terminal. - View Dependent Claims (2, 3, 4, 5)
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6. A user terminal in a heterogeneous network having a network configuration where a macro cell overlays a micro cell that is smaller than the macro cell, the user terminal comprising:
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a receiving section configured to receive a measurement subframe pattern to measure a channel state; and a measuring section configured to measure the channel state in accordance with the measurement subframe pattern and a time reference indicating a pattern start timing. - View Dependent Claims (7, 8, 9, 10, 13, 14, 15, 16)
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11. A radio communication method comprising the steps of:
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a radio base station in a heterogeneous network having a network configuration where a macro cell overlays a micro cell that is smaller than the macro cell, generating a measurement subframe pattern to measure a channel state and a time reference indicating a pattern start timing of the measurement subframe pattern based on the network configuration; and transmitting a signal including the measurement subframe pattern and the time reference to a user terminal; and the user terminal receiving the signal including the measurement subframe pattern and the time reference; and measuring the channel state based on the measurement subframe pattern and the time reference.
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12. A radio communication method comprising the steps of:
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a radio base station in a heterogeneous network having a network configuration where a macro cell overlays a micro cell that is smaller than the macro cell, the radio base station; generating a measurement subframe pattern to measure a channel state based on the network configuration, and transmitting a signal including the measurement subframe pattern to a user terminal; and the user terminal; receiving the signal including the measurement subframe pattern, and measuring the channel state based on the measurement subframe pattern and a time reference indicating a pattern start timing of the measurement subframe pattern.
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Specification