NR ITERATIVE CHANNEL ESTIMATION FOR NEW RADIO

• Main Authors: BAI DONG WOON, CHENG YUAN SHENG, LU SILI, PENNA FEDERICO, MOON JANG WOOK, BAE JUNG HYUN
• Format: Patent
• Language: English; Korean
• Published: 25.07.2024
• Subjects: ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION

본 개시의 일 실시예에 따른 시스템은, 하나 이상의 데이터 심볼과 연관된 하나 이상의 LLR(log likelihood ratio)을 생성하도록 구성된 심볼 처리 블록, 및 상기 심볼 처리 블록으로부터 상기 하나 이상의 LLR을 수신하고, 적어도 하나 이상의 기준 신호 및 상기 하나 이상의 LLR에 기반하여 NR(new radio)에 대한 반복 채널 추정(iterative channel estimation, ItCE)을 처리하도록 구성된 채널 추정 모듈을 포함할 수 있다. A method and system include a symbol processing block to generate log likelihood ratios (LLRs) associated with one or more data symbols. The method and system include a channel estimation (CE) module to receive the LLRs from the symbol processing block, and to process iterative CE (ItCE) for new radio (NR) based at least on reference signals and the LLRs. The CE module can process the ItCE with a granularity of one or more resource blocks (RBs) based at least on pilot resource elements (REs) and virtual pilot REs obtained from the LLRs. The CE module can process the ItCE based at least on a frequency domain orthogonal cover codes (FD-OCC) structure of the reference signals. The reference signals can be demodulation reference signals (DMRS) configured in 5G NR. The CE module can process the ItCE by updating a CE result by adding a quantity that represents a contribution obtained from virtual pilot REs.