The 3rd Generation Partnership Project (3GPP) initiated its Long Term Evolution (LTE) standardization work to retain its technology and standard advantages in the field of mobile communications. A series of advanced t...The 3rd Generation Partnership Project (3GPP) initiated its Long Term Evolution (LTE) standardization work to retain its technology and standard advantages in the field of mobile communications. A series of advanced technologies and novel concepts related to the physical layer (Layer 1),air interface protocol structure layer (Layer 2) and network architecture are adopted. Solutions to Voice over IP (VoIP) and Multimedia Broadcast/Multicast Service (MBMS) are in the optimization process. 3GPP LTE has achieved the design goals of high data rate,low latency and an all-packet basis.展开更多
The challenges brought by broadband wireless access technologies to cellular mobile communication technologies speed up the study and standardization of 3G evolution technologies that support higher data rates. Both t...The challenges brought by broadband wireless access technologies to cellular mobile communication technologies speed up the study and standardization of 3G evolution technologies that support higher data rates. Both the 3GPP and the 3GPP2 have launched research programs on the study and standardization of the emerging 3G evolution technologies. The Long Term Evolution (LTE) program of 3GPP has made progress in key technical indexes of air interface, wireless network architecture and high-level protocols. At the same time, the Air Interface Evolution (AIE) program of 3GPP2 has made study achievements in the formulation of air interface standards for Layer 2 and upper layers, as well as for the physical layer.展开更多
目的 基于循证医学,构建一套适用于进行性纤维化间质性肺病患者的规范化肺康复训练方案,丰富肺康复指导的系统教育方案内涵,为临床康复护理提供科学指导。方法 计算机检索中国WanFang数据库、中国知网数据库(CNKI)、维普数据库(VIP)、...目的 基于循证医学,构建一套适用于进行性纤维化间质性肺病患者的规范化肺康复训练方案,丰富肺康复指导的系统教育方案内涵,为临床康复护理提供科学指导。方法 计算机检索中国WanFang数据库、中国知网数据库(CNKI)、维普数据库(VIP)、中国生物医学文献数据库(CBM)、PubMed、Embase、Cochrane Library、Web of Science数据库文献及指南网站,以循证医学为指导,通过文献回顾分析,采用《临床指南研究与评价系统》(Appraisal of Guidelines for Research and Evaluation,AGREEⅡ)评价指南质量及澳大利亚JBI(Joanna Briggs Institute)循证卫生保健中心开发的文献质量评价工具对随机对照试验、系统评价、类实验文献进行质量评价,对纳入的文献进行全文阅读及等级划分,以汇总最佳证据,拟定进行性纤维化间质性肺病患者肺康复训练方案初稿,最后结合专家会议和专家咨询结果,对方案初稿进行可用性评鉴,最终修订完善方案。结果 经文献质量评价及筛选后,共纳入30篇文献,其中指南与专家共识3篇,随机对照试验文献16篇,系统评价文献6篇,类实验文献5篇。方案内容包括训练评估、呼吸训练、运动训练、健康教育、社会心理干预、营养支持6个一级指标。结论 该研究构建的方案结果可靠,其规范性、科学性和安全性高,能够为进行性纤维化间质性肺病患者临床康复护理工作提供参考。展开更多
文摘The 3rd Generation Partnership Project (3GPP) initiated its Long Term Evolution (LTE) standardization work to retain its technology and standard advantages in the field of mobile communications. A series of advanced technologies and novel concepts related to the physical layer (Layer 1),air interface protocol structure layer (Layer 2) and network architecture are adopted. Solutions to Voice over IP (VoIP) and Multimedia Broadcast/Multicast Service (MBMS) are in the optimization process. 3GPP LTE has achieved the design goals of high data rate,low latency and an all-packet basis.
基金National "863"Program of China (No. 2005AA123410)
文摘The challenges brought by broadband wireless access technologies to cellular mobile communication technologies speed up the study and standardization of 3G evolution technologies that support higher data rates. Both the 3GPP and the 3GPP2 have launched research programs on the study and standardization of the emerging 3G evolution technologies. The Long Term Evolution (LTE) program of 3GPP has made progress in key technical indexes of air interface, wireless network architecture and high-level protocols. At the same time, the Air Interface Evolution (AIE) program of 3GPP2 has made study achievements in the formulation of air interface standards for Layer 2 and upper layers, as well as for the physical layer.
文摘目的 基于循证医学,构建一套适用于进行性纤维化间质性肺病患者的规范化肺康复训练方案,丰富肺康复指导的系统教育方案内涵,为临床康复护理提供科学指导。方法 计算机检索中国WanFang数据库、中国知网数据库(CNKI)、维普数据库(VIP)、中国生物医学文献数据库(CBM)、PubMed、Embase、Cochrane Library、Web of Science数据库文献及指南网站,以循证医学为指导,通过文献回顾分析,采用《临床指南研究与评价系统》(Appraisal of Guidelines for Research and Evaluation,AGREEⅡ)评价指南质量及澳大利亚JBI(Joanna Briggs Institute)循证卫生保健中心开发的文献质量评价工具对随机对照试验、系统评价、类实验文献进行质量评价,对纳入的文献进行全文阅读及等级划分,以汇总最佳证据,拟定进行性纤维化间质性肺病患者肺康复训练方案初稿,最后结合专家会议和专家咨询结果,对方案初稿进行可用性评鉴,最终修订完善方案。结果 经文献质量评价及筛选后,共纳入30篇文献,其中指南与专家共识3篇,随机对照试验文献16篇,系统评价文献6篇,类实验文献5篇。方案内容包括训练评估、呼吸训练、运动训练、健康教育、社会心理干预、营养支持6个一级指标。结论 该研究构建的方案结果可靠,其规范性、科学性和安全性高,能够为进行性纤维化间质性肺病患者临床康复护理工作提供参考。
