Patent ID: 11887607
Assignee: HUAWEI TECHNOLOGIES CO., LTD.
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 13:
14. The apparatus according to claim 11, wherein the programming instructions for execution by the at least one processor, when executed by the at least one processor, cause the encoding apparatus further to determine the frame structure similarity value in the following manner:
perform open-loop pitch period analysis on the first secondary channel signal, to obtain an estimated open-loop pitch period value of the first secondary channel signal;
determine a closed-loop pitch period reference value of the first secondary channel signal based on the estimated pitch period value of the first primary channel signal and a quantity of subframes of the first secondary channel signal; and
determine the frame structure similarity value based on the estimated open-loop pitch period value and the closed-loop pitch period reference value.