A sounding reference signal, SRS, transmission method performed by a communication node device, the method comprising: determining (S101), according to at least one of configuration signaling information or a predefined rule, configuration information of respective SRS symbols in an uplink subframe; and transmitting (S102), according to the configuration information, the respective SRS symbols; wherein the respective SRS symbols in the uplink subframe comprise at least one legacy SRS symbol and an additional SRS symbol; wherein the legacy SRS symbol is located on a last symbol in the uplink subframe, and the additional SRS symbol is located on a symbol other than the last symbol in the uplink subframe, wherein determining (S101), according to the at least one of the configuration signaling information or the predefined rule, the configuration information of the respective SRS symbols in the uplink subframe comprises: when the determining (S101) is performed according to the predefined rule, it comprises determining, according to a predefined SRS sequence generation rule, an SRS sequence generation manner of the legacy SRS symbol and an SRS sequence generation manner of the additional SRS symbol, characterized in that : the predefined SRS sequence generation rule comprises: an SRS sequence of the legacy SRS symbol being generated based on a physical cell identifier of the cell formed by the communication node device; and an SRS sequence of the additional SRS symbol being generated based on an SRS sequence identifier. determining (S101), according to at least one of configuration signaling information or a predefined rule, configuration information of respective SRS symbols in an uplink subframe; and transmitting (S102), according to the configuration information, the respective SRS symbols; wherein the respective SRS symbols in the uplink subframe comprise at least one legacy SRS symbol and an additional SRS symbol; wherein the legacy SRS symbol is located on a last symbol in the uplink subframe, and the additional SRS symbol is located on a symbol other than the last symbol in the uplink subframe, wherein determining (S101), according to the at least one of the configuration signaling information or the predefined rule, the configuration information of the respective SRS symbols in the uplink subframe comprises: when the determining (S101) is performed according to the predefined rule, it comprises determining, according to a predefined SRS sequence generation rule, an SRS sequence generation manner of the legacy SRS symbol and an SRS sequence generation manner of the additional SRS symbol, characterized in that : the predefined SRS sequence generation rule comprises: an SRS sequence of the legacy SRS symbol being generated based on a physical cell identifier of the cell formed by the communication node device; and an SRS sequence of the additional SRS symbol being generated based on an SRS sequence identifier. when the determining (S101) is performed according to the predefined rule, it comprises determining, according to a predefined SRS sequence generation rule, an SRS sequence generation manner of the legacy SRS symbol and an SRS sequence generation manner of the additional SRS symbol, characterized in that : the predefined SRS sequence generation rule comprises: an SRS sequence of the legacy SRS symbol being generated based on a physical cell identifier of the cell formed by the communication node device; and an SRS sequence of the additional SRS symbol being generated based on an SRS sequence identifier. an SRS sequence of the legacy SRS symbol being generated based on a physical cell identifier of the cell formed by the communication node device; and an SRS sequence of the additional SRS symbol being generated based on an SRS sequence identifier. <EOS>