Device and method for channel estimation using short/long-term memory network in millimeter-wave communication system

A channel estimation device, the channel estimation device comprising:

• memory storing one or more computer programs;
• and
• one or more processors communicatively coupled to the memory,
• wherein the one or more computer programs include computer-executable instructions that, when executed by the one or more processors, cause the channel estimation device to:
• when a received pilot signal of a time slot is input, extract, by a long short-term memory network, a time-varying channel feature embedding vector by estimating a change state of a channel by using the received pilot signal of the time slot as an input,
• estimate, by a fully connected network, a parameter of a channel model by using the time-varying channel feature embedding vector as an input, and
• estimate, by a channel reproduction unit, a channel for the received pilot signal of the time slot, using the parameter of the channel model,
• wherein the long short-term memory network is separate from the fully connected network.

One or more non-transitory computer-readable storage media storing one or more computer programs including computer-executable instructions that, when executed by one or more processors of a channel estimation device, cause the channel estimation device to perform operations, the operations comprising:

• inputting, by the channel estimation device, a received pilot signal of a time slot to a long short-term memory network;
• extracting, by the channel estimation device, a time-varying channel feature embedding vector by estimating a change state of a channel by using the received pilot signal of the time slot as an input in the long short-term memory network;
• estimating, by the channel estimation device, a parameter of a channel model by using the time-varying channel feature embedding vector as an input by using a fully connected network;
• and
• estimating, by the channel estimation device, a channel for the received pilot signal of the time slot, using the parameter of the channel model,
• wherein the long short-term memory network is separate from the fully connected network.