Phase noise determining method and related apparatus
AssigneeHuawei Technologies Co., Ltd.
InventorsQianli Ma, Nuwan Suresh Ferdinand, Huang Huang
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Abstract
A phase noise determining method and a related apparatus are provided. The method includes: A first communication apparatus obtains a first signal, where the first signal includes a data signal and K phase-tracking reference signals PTRSs, where a value of an mth PTRS in the K PTRSs is determined based on a value of first interference, a value of second interference, and a preset receiving value of the mth PTRS, the first interference is inter-symbol interference generated by the data signal on the mth PTRS, the second interference is inter-symbol interference generated by a PTRS other than the mth PTRS in the K PTRSs on the mth PTRS, K and m are positive integers, and 1≤m≤K.
Claims20
A phase noise determining method, comprising:
- obtaining, by a first communication apparatus, a first signal comprising a data signal and K phase-tracking reference signals PTRSs, wherein a value of an mth PTRS in the K PTRSs is determined based on a value of a first interference, a value of a second interference, and a preset receiving value of the mth PTRS, wherein the first interference is an inter-symbol interference generated by the data signal on the mth PTRS, the second interference is an inter-symbol interference generated by a PTRS other than the mth PTRS in the K PTRSs, K and m are positive integers, and 1≤m≤K;
- and
- sending, by the first communication apparatus, a second signal to a second communication apparatus, wherein the second signal is a signal obtained through baseband signal processing performed on the first signal.
A phase noise determining method, comprising:
- obtaining, by a first communication apparatus, a first signal, wherein the first third signal is a-signal obtained through introduction of phase noise into a second signal sent by a second communication apparatus, and the first signal comprises a data signal and K phase-tracking reference signals PTRSs, wherein
- the second signal is obtained through baseband signal processing performed on a third signal, the third signal comprises a data signal and K PTRSs, a value of an mth PTRS in the K PTRSs in the third signal is determined based on a value of a first interference, a value of a second interference, and a preset receiving value of the mth PTRS, the first interference is an inter-symbol interference generated by the data signal in the third signal on the mth PTRS, the second interference is an inter-symbol interference generated by a PTRS other than the mthPTRS in the K PTRSs in the third signal on the mth PTRS, K and m are positive integers, and 1≤m≤K;
- and
- determining, by the first communication apparatus, the phase noise based on values of the K PTRSs in the first signal and preset receiving values of the K PTRSs in the third signal.
A communication apparatus comprising:
- a transceiver unit and a processing unit, wherein
- the transceiver unit is configured to obtain a first signal comprising a data signal and K phase-tracking reference signals PTRSs, wherein a value of an mth PTRS in the K PTRSs is determined based on a value of a first interference, a value of a second interference, and a preset receiving value of the mth PTRS, wherein the first interference is an inter-symbol interference generated by the data signal on the mth PTRS, the second interference is an inter-symbol interference generated by a PTRS other than the mth PTRS in the K PTRSs, K and m are positive integers, and 1≤m≤K;
- the processing unit is configured to perform baseband signal processing on the first signal to obtain a second signal;
- and
- the transceiver unit is further configured to send the second signal to a second communication apparatus.
Dependencies are inferred from the claim text.