Method and apparatus for sounding reference signal resource allocation in long term evolution system

An apparatus for allocating Sounding Reference Signal (SRS) resources in a Long Term Evolution (LTE) system, comprising at least one processor executing a setting unit and a resource allocating unit, wherein:

• the setting unit configured to:
• set different SRS transmission periods to correspond to different cycle shifts;
• and
• the resource allocating unit configured to:
• during a process of allocating SRS resources for user equipment (UE), set the cycle shift adopted by the UE according to the SRS transmission period adopted by the UE and a corresponding relationship between the SRS transmission period and the cycle shift set by the setting unit;
• wherein the resource allocating unit is further configured to:
• after setting the cycle shift adopted by the UE for the UE, determine resources on an SRS odd tree or on an SRS even tree allocated for the UE according to frequency hopping information of the UE within an SRS frequency band resource range of a cell where the UE is located, wherein the frequency hopping information of the UE is for indicating whether the UE is a full-frequency hopping UE or a partial-frequency hopping UE, or a non-frequency hopping UE;
• and
• wherein the SRS odd tree refers to SRS frequency band resources with subcarrier numbers being odd;
• the SRS even tree refers to SRS frequency band resources with subcarrier numbers being even;
• the full-frequency hopping means that the UE performs frequency hopping within the SRS frequency band resource range of the cell where the UE is located;
• the partial-frequency hopping means that the UE only performs frequency hopping within part of the SRS frequency band resource range of the cell where the UE is located;
• the non-frequency hopping means that a SRS frequency band resource position in each transmission of the UE does not change.