| 摘要 |
Proposed are an SRS sending method and device in LTE carrier aggregation, which fall within the technical field of wireless communications. Provided is a method for a base station to allocate an SRS resource for a UE under FDD on a TDD carrier without changing an initial SRS allocation method for a UE under TDD, in a TDD-FDD CA scenario. In the present method, a penultimate symbol of a TDD special subframe is used to individually send an SRS of an FDD UE, and partitioning is carried out according to a frequency domain on the symbol, each partition being reserved for one FDD carrier, and a UE under the FDD carrier allocates a resource on the symbol according to a period and the frequency domain. The present invention simplifies the solution of allocating an SRS to an FDD UE on a TDD carrier. The SRS is allocated to the FDD UE independently in a symbol of a special subframe, which does not affect an original SRS allocation method in TDD, and can also fully guarantee an SRS resource of TDD at the same time, since an original resource is used by itself without dividing a resource for the other carriers to use. |
