Method and apparatus for transmitting and processing user equipment feedback information

摘要

A method and an apparatus for transmitting and processing user equipment feedback information are disclosed by the present invention, related to the field of radio communication technologies, and with the present invention, a user equipment is capable of transmitting feedback information with a maximum channel RI value of 4. The method includes: obtaining rank information (RI) of a radio channel, a corresponding channel quality indication information (CQI) value, and a precoding control information (PCI) value, where an RI value is any one of 1, 2, 3, and 4; and generating feedback information according to the CQI value and the PCI value, and sending the feedback information to a base station according to a CQI feedback pattern. Embodiments of the present invention are mainly applicable to a process of transmitting user equipment feedback information.

主权项

1. A method for transmitting user equipment (UE) feedback information, comprising:
by the UE:
obtaining rank indication (RI) of a radio channel, and corresponding channel quality indication (CQI) and precoding control indication (PCI) values which correspond to the RI, wherein a value of the RI is any one of 1, 2, 3, and 4;generating feedback information according to the CQI value and the PCI value; andsending the feedback information to a base station according to a CQI feedback pattern of at least one CQI type set to identify the RI value being any one of 1, 2, 3, and 4 based upon the CQI value or the PCI value, wherein the obtaining RI of the radio channel, and the corresponding CQI and PCI values comprises:
obtaining a sending time for sending CQI, and obtaining the at least one CQI type corresponding to the sending time according to the CQI feedback pattern;obtaining, in a precoding set corresponding to the RI value identified by the at least one CQI type, a precoding matrix matching a channel parameter of the radio channel, and using a rank value of the matching precoding matrix as the RI value of the radio channel;determining the corresponding PCI value according to the matching precoding matrix;obtaining a transportable data block size according to the matching precoding matrix and the parameter of the radio channel, and obtaining an index corresponding to the transportable data block size according to the transportable data block size; andperforming an operation on the index corresponding to the transportable data block size according to the at least one CQI type and the RI value to obtain the CQI value.