Reference signal transmission method and apparatus
AssigneeHuawei Technologies Co., Ltd.
InventorsDan Wu, Lei Chen
Life of this patent
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Abstract
This application discloses a reference signal transmission method and apparatus. The method includes: generating one or more OFDM symbols, where at least one OFDM symbol includes a PTRS resource block, the PTRS resource block includes at least two of three sequences: a PTRS sequence of Y elements, X elements after the PTRS sequence, and Z elements before the PTRS sequence, and the PTRS resource block occupies a plurality of consecutive resource elements REs, where X, Y, and Z are all integers; and sending the one or more OFDM symbols. According to the foregoing method and apparatus, inter-carrier interference is reduced, thereby improving spectral efficiency.
Claims16
A reference signal transmission method comprising:
- generating one or more orthogonal frequency division multiplexing (OFDM) symbols, wherein at least one OFDM symbol comprises a phase tracking reference signal (PTRS) resource block, the PTRS resource block comprising at least two of three sequences:
- a PTRS sequence of Y elements, X elements after the PTRS sequence, and Z elements before the PTRS sequence, and the PTRS resource block occupies a plurality of consecutive resource elements (REs), wherein X, Y, and Z are integers;
- and
- sending the one or more OFDM symbols.
A reference signal transmission method comprising:
- receiving one or more orthogonal frequency division multiplexing (OFDM) symbols, wherein at least one OFDM symbol comprises a phase tracking reference signal (PTRS) resource block, the PTRS resource block comprising at least two of three sequences:
- a PTRS sequence of Y elements, X elements after the PTRS sequence, and Z elements before the PTRS sequence, and the PTRS resource block occupies a plurality of consecutive resource elements (REs), wherein X, Y, and Z are integers;
- and
- obtaining a complete PTRS sequence from the one or more OFDM symbols.
A reference signal transmission apparatus comprising:
- a processor configured to generate one or more orthogonal frequency division multiplexing (OFDM) symbols, wherein at least one OFDM symbol comprises a phase tracking reference signal (PTRS) resource block, the PTRS resource block comprising at least two of three sequences:
- a PTRS sequence of Y elements, X elements after the PTRS sequence, and Z elements before the PTRS sequence, and the PTRS resource block occupies a plurality of consecutive resource elements (REs), wherein X, Y, and Z are integers;
- and
- a transmitter configured to send the one or more OFDM symbols.
A reference signal transmission apparatus comprising:
- a receiver configured to receive one or more orthogonal frequency division multiplexing (OFDM) symbols, wherein at least one OFDM symbol comprises a phase tracking reference signal (PTRS) resource block, the PTRS resource block comprising at least two of three sequences:
- a PTRS sequence of Y elements, X elements after the PTRS sequence, and Z elements before the PTRS sequence, and the PTRS resource block occupies a plurality of consecutive resource elements (REs), wherein X, Y, and Z are integers;
- and
- a processor configured to obtain a complete PTRS sequence from the one or more OFDM symbols.
Dependencies are inferred from the claim text.