Method and apparatus for channel measurement

摘要

The present invention discloses a method for channel measurement which includes: determining the size of measured bandwidth of a terminal and the location of the measured bandwidth in system bandwidth; determining the size of a measured sub-band and/or the quantity or sizes of measured sub-band sets according to the measured bandwidth; sending the determined size of the measured bandwidth and the location of the measured bandwidth in the system bandwidth, and the size of the measured sub-band and/or the quantity or sizes of the measured sub-band sets to the terminal; receiving measurement results returned by the terminal. With the method provided in the present invention, invalid feedback is prevented and effectiveness and accuracy of channel measurement and feedback are improved.

主权项

1. A method for channel measurement, comprising:
determining a size of measured bandwidth of a terminal and a location of the measured bandwidth in system bandwidth; determining at least one of
a size of a measured sub-band, anda quantity or sizes of measured sub-band sets according to the measured bandwidth; sending, to the terminal, at least one ofthe determined size and location of the measured bandwidth in the system bandwidth,the determined size of the measured sub-band andthe determined quantity or sizes of the measured sub-band sets; transmitting, to the terminal, reference signals within a range of the measured bandwidth, the reference signals being Channel State Information Reference Signals (CSI-RS); and receiving measurement results returned by the terminal, wherein the measurement results are obtained
after the terminal measures the measured bandwidth of the determined size and location in the system bandwidth according to the reference signals transmitted to the terminal,after the terminal measures the measured sub-band of the determined size at the measured bandwidth of the determined size and location in the system bandwidth according to the reference signals transmitted to the terminal, orafter the terminal measures measured sub-bands of a corresponding size in the measured sub-band sets of the determined quantity or sizes at the measured bandwidth of the determined size and location in the system bandwidth according to the reference signals transmitted to the terminal.