Communication method and communication apparatus
AssigneeHuawei Technologies Co., Ltd.
InventorsGuankai Zhao, Chunhui Le, Zhiyong Wang, Meng Jiang
Life of this patent
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Abstract
A communication method includes sending a channel state information reference signal (CSI-RS) to a terminal device, and receiving channel state information (CSI) from the terminal device. The CSI-RS is processed by using a first weight matrix. Quantities of rows and columns of the first weight matrix are related to a quantity of transmit ports of the CSI-RS and a quantity of digital channels of a network device. The quantity of transmit ports of the CSI-RS is greater than the quantity of digital channels.
Claims20
A communication method, comprising:
- sending a channel state information reference signal (CSI-RS) to a terminal device, wherein the CSI-RS is processed by using a first weight matrix, quantities of rows and columns of the first weight matrix are related to a quantity of transmit ports of the CSI-RS and a quantity of digital channels of a network device, and the quantity of transmit ports of the CSI-RS is greater than the quantity of digital channels;
- and
- receiving channel state information (CSI) from the terminal device.
A network device, comprising:
- at least one processor;
- and
- one or more non-transitory memories configured to store instructions, and the at least one processor being configured to execute the instructions to thereby cause the network device to perform operations comprising:
- sending a channel state information reference signal (CSI-RS) to a terminal device, wherein the CSI-RS is processed by using a first weight matrix, quantities of rows and columns of the first weight matrix are related to a quantity of transmit ports of the CSI-RS and a quantity of digital channels of the network device, and the quantity of transmit ports of the CSI-RS is greater than the quantity of digital channels;
- and
- receiving channel state information (CSI) from the terminal device.
A terminal device, comprising:
- at least one processor;
- and
- one or more non-transitory memories configured to store instructions, and the at least one processor being configured to execute the instructions to thereby cause the terminal device to perform operations comprising:
- receiving a channel state information reference signal CSI-RS from a network device, wherein the CSI-RS is processed by using a first weight matrix, quantities of rows and columns of the first weight matrix are related to a quantity of transmit ports of the CSI-RS and a quantity of digital channels of the network device, and the quantity of transmit ports of the CSI-RS is greater than the quantity of digital channels;
- measuring the CSI-RS to obtain channel state information (CSI);
- and
- sending the CSI to the network device.
Dependencies are inferred from the claim text.