Synchronization method and apparatus
AssigneeHuawei Technologies Co., Ltd.
InventorsLei Gao, Deping Liu, Zhenwei Lu
Life of this patent
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Abstract
A synchronization method includes: determining a data signal, where a target sequence in the data signal is mapped to at least one symbol that includes the first symbol within a time unit, data in the data signal is mapped to at least one another symbol in the time unit other than the at least one symbol, the first symbol includes a cyclic prefix, and the target sequence is used by a second device to synchronize the data signal; and sending the data signal to the second device in the time unit. In the present disclosure, a sequence used to synchronize a data signal for each transmission is mapped at an equal spacing to at least one symbol that includes the first symbol within a time unit for the current transmission.
Claims17
A synchronization method, wherein the method is applied to a first device, and comprises:
- determining a data signal, wherein a target sequence in the data signal is mapped to at least one symbol that comprises a first symbol within a time unit, data in the data signal is mapped to at least one another symbol within the time unit other than the at least one symbol, the first symbol comprises a cyclic prefix, and the target sequence is used by a second device to synchronize the data signal, and
- wherein the first symbol comprises a first portion and a second portion, the first portion comprising the cyclic prefix and the second portion comprising a head part and a tail part, wherein the second portion follows the first portion in a time domain such that the head part of the second portion is between, in the time domain, the cyclic prefix and the tail part of the second portion, and wherein a time domain sequence corresponding to the head part of the second portion is the same as a time domain sequence corresponding to the tail part of the second portion;
- and
- sending the data signal to the second device in the time unit.
A synchronization method, wherein the method is applied to a second device, and comprises:
- receiving a data signal from a first device in a time unit, wherein the data signal comprises data and a first sequence, and the first sequence is used by the second device to synchronize the data signal;
- determining the first sequence based on a target sequence received on at least one symbol that comprises a first symbol within the time unit, and a cyclic prefix comprised in the first symbol, and
- wherein the first symbol comprises a first portion and a second portion, the first portion comprising the cyclic prefix and the second portion comprising a head part and a tail part, wherein the second portion follows the first portion in a time domain such that the head part of the second portion is between, in the time domain, the cyclic prefix and the tail part of the second portion, and wherein a time domain sequence corresponding to the head part of the second portion is the same as a time domain sequence corresponding to the tail part of the second portion;
- and
- synchronizing the data signal based on the first sequence and the target sequence corresponding to the first sequence.
A synchronization apparatus, wherein the apparatus is applied to a first device, and comprises:
- a processing module, configured to determine a data signal, wherein a target sequence in the data signal is mapped to at least one symbol that comprises a first symbol within a time unit, data in the data signal is mapped to at least one another symbol in the time unit other than the at least one symbol, the first symbol comprises a cyclic prefix, and the target sequence is used by a second device to synchronize the data signal, and
- wherein the first symbol comprises a first portion and a second portion, the first portion comprising the cyclic prefix and the second portion comprising a head part and a tail part, wherein the second portion follows the first portion in a time domain such that the head part of the second portion is between, in the time domain, the cyclic prefix and the tail part of the second portion, and wherein a time domain sequence corresponding to the head part of the second portion is the same as a time domain sequence corresponding to the tail part of the second portion;
- and
- a sending module, configured to send the data signal to the second device in the time unit.
Dependencies are inferred from the claim text.