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US 10,951,332 B2Granted
Method and apparatus for coordinated multipoint (CoMP) communication using quasi-co-location
AssigneeHuawei Technologies Co., Ltd.
InventorsXiaona Wang, Peng Guan
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Abstract
Embodiments of the present invention provide a method used for wireless communication and an apparatus. The method includes: configuring measurement parameters of channel state information for a terminal device, where the measurement parameters include a channel state information-reference signal configuration and a quasi-co-location indication, the channel state information-reference signal configuration includes configurations of at least two groups of antenna ports, and the quasi-co-location indication is used to indicate whether the at least two groups of antenna ports have a quasi-co-location relationship; and sending the measurement parameters to the terminal device.
Claims20
A method, comprising:
- configuring, by a base station, a plurality of measurement parameters for a terminal device to use to measure channel state information, wherein the measurement parameters comprise a channel state information-reference signal configuration and a quasi-co-location indication, the channel state information-reference signal configuration comprises configurations of at least two groups of antenna ports, and the quasi-co-location indication indicates whether the at least two groups of antenna ports have a quasi-co-location relationship such that a first large-scale property of a first channel in which a first group of the at least two groups of antenna ports transmits is inferable from a second large-scale property of a second channel in which a second group of the at least two groups of antenna ports transmits;
- and
- sending, by the base station to the terminal device, the plurality of measurement parameters to the terminal device.
A method, comprising:
- receiving, by a terminal device from a base station, a plurality of measurement parameters for measuring channel state information, wherein the plurality of measurement parameters comprises a channel state information-reference signal configuration and a quasi-co-location indication, the channel state information-reference signal configuration comprises configurations of at least two groups of antenna ports, and the quasi-co-location indication indicates whether the at least two groups of antenna ports have a quasi-co-location relationship such that a first large-scale property of a first channel in which a first group of the at least two groups of antenna ports transmits is inferable from a second large-scale property of a second channel in which a second group of the at least two groups of antenna ports transmits;
- and
- measuring, by the terminal device, the channel state information based on the plurality of measurement parameters.
A base station, comprising:
- a receiver;
- a transmitter;
- a non-transitory memory;
- and
- at least one processor, wherein the non-transitory memory stores a set of program code, and the at least one processor is configured to invoke the set of program code stored in the non-transitory memory to:
- configure a plurality of measurement parameters for a terminal device to use to measure channel state information, wherein the plurality of measurement parameters comprise a channel state information-reference signal configuration and a quasi-co-location indication, the channel state information-reference signal configuration comprises configurations of at least two groups of antenna ports, and the quasi-co-location indication indicates whether the at least two groups of antenna ports have a quasi-co-location relationship such that a first large-scale property of a first channel in which a first group of the at least two groups of antenna ports transmits is inferable from a second large-scale property of a second channel in which a second group of the at least two groups of antenna ports transmits;
- and
- sending the plurality of measurement parameters to the terminal device using the transmitter.
5 more elements
A terminal device, comprising:
- a receiver;
- a transmitter;
- a non-transitory memory;
- and
- at least one processor, wherein the non-transitory memory stores a set of program code, and the at least one processor is configured to invoke the set of program code stored in the non-transitory memory to:
- receive, from a base station using the receiver, a plurality of measurement parameters for measuring channel state information, wherein the plurality of measurement parameters comprises a channel state information-reference signal configuration and a quasi-co-location indication, the channel state information-reference signal configuration comprises configurations of at least two groups of antenna ports, and the quasi-co-location indication indicates whether the at least two groups of antenna ports have a quasi-co-location relationship such that a first large-scale property of a first channel in which a first group of the at least two groups of antenna ports transmits is inferable from a second large-scale property of a second channel in which a second group of the at least two groups of antenna ports transmits;
- and
- measure the channel state information based on the measurement parameters.
5 more elements
Dependencies are inferred from the claim text.