Data-aided channel tracking for OFDM systems
AssigneeSamsung Electronics Co., Ltd.
InventorsFederico Penna, Hongbing Cheng
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Abstract
A system and a method are disclosed for performing data-aided channel tracking for a subcarrier, including obtaining a reference channel estimate (CE) at a first time instance using a reference signal; determining, based on the obtained reference CE and based on received data symbols, a data-aided CE at a second time instance that is subsequent to the first time instance; and sequentially determining one or more additional data-aided CEs, for one or more time instances subsequent to the second time instance, based on a data-aided CE obtained at a previous time instance and based on the received data symbols.
Claims20
A method of performing data-aided channel tracking for a subcarrier, comprising:
- obtaining a reference channel estimate (CE) at a first time instance using a reference signal;
- determining, based on the obtained reference CE and based on received data symbols, a data-aided CE at a second time instance that is subsequent to the first time instance;
- and
- sequentially determining one or more additional data-aided CEs, for one or more time instances subsequent to the second time instance, based on a data-aided CE obtained at a previous time instance and based on the received data symbols,
- wherein at least one of the data-aided CE or the one or more additional data-aided CEs is determined without using the reference signal directly.
An electronic device, comprising:
- at least one processor;
- and
- at least one memory operatively connected with the at least one processor, the at least one memory storing instructions, which when executed, instruct the at least one processor to perform a method of performing data-aided channel tracking for a subcarrier, by:
- obtaining a reference channel estimate (CE) at a first time instance using a reference signal;
- determining, based on the obtained reference CE and based on received data symbols, a data-aided CE at a second time instance that is subsequent to the first time instance;
- and
- sequentially determining one or more additional data-aided CEs, for one or more time instances subsequent to the second time instance, based on a data-aided CE obtained at a previous time instance and based on the received data symbols,
- wherein at least one of the data-aided CE or the one or more additional data-aided CEs is determined without using the reference signal directly.
Dependencies are inferred from the claim text.