Yuki Matsumura, Lihui Wang, K. Takeda, Satoshi Nagata
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引用次数: 3
摘要
本文研究了新无线电(NR)物理上行控制信道(NR PUCCH)的信道设计，该信道为1个符号(短PUCCH)，携带最多2位确认(ACK)/负确认(NACK)。通过计算机仿真对短pucch A型和短pucch B型两种短pucch设计进行了比较和评价。在短pucch类型A中，参考信号(RS)和ACK/NACK在同一符号内的不同子载波中复用;在short-PUCCH type B中，不使用RS，通过在候选序列中选择哪个序列来表示ACK/NACK。链路级评价结果和链路预算分析表明，短pucch B型的覆盖率比短pucch A型高40 ~ 60%。
5G new RAT uplink control channel for small payloads
In this paper, channel design for the New Radio (NR) physical uplink control channel (NR PUCCH) of 1 symbol (short-PUCCH) carrying up to 2 bits of acknowledgement (ACK)/negative ACK (NACK) is investigated. Two types of short-PUCCH designs, i.e., short-PUCCH type A and short-PUCCH type B, are compared and evaluated by computer simulation. In short-PUCCH type A, reference signal (RS) and ACK/NACK are multiplexed in different subcarriers within the same symbol; in short-PUCCH type B, no RS is used and ACK/NACK are indicated by which sequence is selected among the sequence candidates. The link-level evaluation results and link-budget analysis show that short-PUCCH type B has 40∼60 % larger coverage than short-PUCCH type A.
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