ID 原文 译文
57658 移动通信系统每十年演进一代，为了更好地满足人机物智能高速、低时延和大连接的通信需求，特别是提升垂直行业的信息化和智能化水平，急需向智能内生的第 6 代移动通信系统( 6G) 演进. Mobile communication systems evolve every ten years，and to meet the performance require- ments of high bit rate，low latency，and massive connections for the intelligent people-machine-things communications，the intelligent-endogenesis 6th generation of mobile communications system ( 6G) is ur- gent to be evolved.
57659 为了实现智能内生，提出了一种极智极简的无线接入网体系架构，探讨了相应的基础理论和关键技术，对未来的6G 特色业务和应用进行了展望. In order to fulfill the functions of intelligent-endogenesis，an extreme-intelligent and extreme-concise system architecture of radio access networks is proposed. The corresponding fundamental theories and key techniques are outlined，and the future particular services and applications in 6G are discussed as well.
57660 针对 Spark 分布式平台在 shuffle 阶段中导致数据量分配不均衡的问题，首先分析了 Spark 平台中数据倾斜的原因，建立了一个可以统一量化 shuffle 后 key-value 数据倾斜程度的倾斜模型; For the problem of uneven distribution of data caused during the shuffle phase in the Spark distributed platform，the reason of Spark’s low efficiency in processing skewed data is analyzed，then a skew model that can uniformly quantize the skew degree of key-value data after shuffle is proposed.
57661 基于倾斜模型提出了一个可以解决Spark 平台中多种数据倾斜问题的 shuffle 分区方案. Based on this skew model is established，and a shuffle partitioning scheme that can solve various data skew problems in the Spark platform is proposed.
57662 该分区方案首先对 Map 阶段的输出数据进行采样，预测出全局中间数据的大小，再根据基于哈希的最佳适应算法对采样数据进行预分区，得到一张预分区表，最后根据预分区表对全部的中间数据完成分区. Firstly，the output data of the Map stage is sampled，the size of the intermediate data is predicted，and then the sampled data is pre-partitioned according to the Hash- based best fit algorithm. Finally，all the intermediate data is partitioned according to the pre-partition sit- uation.
57663 在 key 和 value 这 2 种不同倾斜情况下的实验结果表明，该 shuffle 分区方案具有普适性和高效性，可以有效处理 key 和 value 倾斜的情况. In the cases of key skew and value skew，the experimental results show that this shuffle partitio- ning scheme is universal and efficient，and can effectively handle the situation of key and value skew.
57664 为解决时分双工大规模多输入多输出( MIMO) 系统中探测参考信号( SＲS) 资源受限造成的系统性能下降问题，基于用户信道变化速率的不同，提出确定用户探测周期的准则，设计扩充了可调度用户集合的导频分配方案，并提出了匹配的多用户分组调度方案. To solve the system performance degradation problem caused by the limited sounding reference signal ( SＲS) resources in time duplex division ( TDD) massive multiple-input-multiple-output ( MIMO) systems，based on the fact that the channel variant rates of various users are different，one metric that de- termines the sounding period is provided firstly，and then a pilot allocation scheme is given to expand the scheduling set，and finally a matched multi-user grouping scheme is introduced.
57665 采用 3-D MIMO 信道对算法进行了验证，仿真结果表明，该算法可有效提升系统性能. Meanwhile，a 3-D MI- MO channel model is used to verify the scheme. Simulations show that the system performance is effec- tively enhanced.
57666 面向第 5 代移动通信系统( 5G) 到第 6 代移动通信系统( 6G) 的演进，从 5G 指标增强、混合场景多目标优化、新业务场景的新需求和网络运营 4 个方面，探讨了 6G 网络的需求和挑战. With the accelerating commercialization of the 5th generation of mobile communications system ( 5G) ，the next 6th generation of mobile communications system( 6G) is attracting extensive research in- terests from both the industry and academia. Towards the evolution from 5G to 6G，the requirements and challenges of 6G are investigated from the following four aspects: 1) the enhancement of 5G key perform- ance indicators; 2) multi-objective optimization in mixed scenarios; 3) new key performance indicators under emerging scenarios; 4) network operations requirements.
57667 通过对 5G 性能满足度及条件分析，给出了现有 5G 标准潜在性能可提升之处，并据此提出了 6G 需求指标建议，探讨了相应的技术发展趋势和初步解决思路. Based on the analysis between 5G per- formance and the required conditions，potential improvements on 5G standard as well as our suggestions on the 6G key performance indicators are presented. Meanwhile，the technology trends and preliminary solutions for 6G are also proposed accordingly.