Pilot signal sending and receiving method and device

Abstract

Disclosed are methods and apparatuses for sending and receiving a pilot signal. The method for sending a pilot signal comprises: establishing a first correspondence between a carrier identifier and a pilot pattern of a first-type pilot signal; establishing a second correspondence between a carrier identifier and a resource block set; acquiring a target carrier identifier of a target carrier; determining a location of a target resource block set corresponding to the target carrier identifier; determining a target pilot pattern of a first-type pilot signal corresponding to target carrier identifier; mapping, according to the target pilot pattern, the first-type pilot signal on each resource block in the target resource block set on the target carrier; sending the first correspondence and the second correspondence to a terminal; and sending, to the terminal, the target carrier mapped with the first-type pilot signal. In the method, a pilot signal is only mapped in a resource block set corresponding to a carrier identifier on a carrier, so as to reduce an overall density and quantity of pilots, thereby reducing redundancy and overhead of pilots.

Description

technical field [0001] The present application relates to the technical field of communication, and in particular to methods and devices for sending and receiving pilot signals. Background technique [0002] In wireless cellular networks, such as UTRAN (Universal Terrestrial Radio Access Network, Universal Terrestrial Access Network) and EUTRAN (Evolved Universal Terrestrial Radio Access Network, Evolved Universal Terrestrial Access Network), in order for terminals to successfully receive network services (such as network residency and Data transmission, etc.), requires a series of measurements and feedback on the network, such as carrier channel quality measurement (such as carrier signal strength and signal quality, etc.), channel estimation (for receiving data) and channel state information (Channel State Information , CSI) measurement feedback, etc., the physical signals on which the terminal performs a series of measurements and feedbacks can be collectively referred to...

AI Technical Summary

Problems solved by technology

[0006] This application provides a pilot signal sending and receiving method and device to solve the problem of pilot signal redundancy in the prior art

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