Method and apparatus for indicating downlink channel measurement and method and apparatus performing downlink channel measurement in a relaying system

摘要

The present invention provides a method and apparatus for indicating downlink channel measurement and a method and apparatus for performing channel measurement. The method for indicating downlink channel measurement comprises: receiving information on interferes of a user equipment; generating, based on downlink subframe configuration information, a downlink channel measurement indication for each of possible combinations of the interferers, wherein the channel measurement indication is adapted to indicate a subframe group to be measured by a user equipment; and sending the downlink channel measurement indication to the user equipment so as to indicate the user equipment to perform corresponding downlink channel measurement. According to embodiments of the present invention, the subframe groups that are required to be measured by the user equipment may be determined with respect to possible combinations of interferers corresponding to different levels of interference. Thus, the user equipment may perform channel measurement for respective subframe groups. Therefore, the channel quality as determined in such way will be more accurate and reliable and better match the actual channel condition. Moreover, it also provides a possibility for the serving node to perform the scheduling more accurately and effectively.

主权项

1. A method of a node indicating downlink channel measurement in a relaying system, comprising:
receiving, from a user equipment, information on interferers; generating, based on downlink subframe configuration information, at least one downlink channel measurement indication, corresponding to possible combinations of the interferers, configured to indicate a subframe group to be measured by the user equipment; sending the at least one downlink channel measurement indication to the user equipment, thereby instructing the user equipment to perform a downlink channel measurement corresponding to the at least one downlink channel measurement indication; and forming the possible combinations of the interferers received from the user equipment, wherein the downlink subframe configuration information is represented by bitmaps, and wherein the downlink channel measurement indication is generated by performing, based on a type of the user equipment and properties of the interferers, a logic operation on the bitmaps representing corresponding downlink subframe configuration information.