WCDMA终端无线资源管理中的切换测试

RRM（无线资源管理）对WCDMA系统及其终端设备至关重要,其涉及的内容直接关系到WCDMA终端在网络中的表现。文章重点介绍WCDMA终端RRM中切换部分的关键指标,并针对3GPP规范中切换部分的要求及测试方法进行阐述。     

上下文感知的6G无线网络

ICDT深度融合是移动通信演进的重要技术趋势之一,如何实现无线网络和AI技术的深度融合是无线网络中演进的重要课题。基于内生AI（native AI）概念,研究在无线网络中使用AI工具进行无线资源优化。提出了一种上下文感知的6G无线网络架构,并在RRM中引入内生AI工具,形成智能控制器智能化无线资源管理（AI-driven RRM）,完成智能无线资源管理的控制器,在大数据和人工智能的驱动下,实现对无线资源的智能化管理。该部署方案把智能控制器按照功能进行部署,并支持动态的功能伸缩,让其部署独立于基站接入点之外以实现基站硬件成本最小化。     

Radio resource management strategy for VoIP service in TD-HSDPA system

is the best of all the RRM strategies.     

一种基于多用户分集的Ad Hoc网络MAC策略

提出一种Ad hoc网络的MAC层协议策略，运用了跨层的设计方法以及无线资源管理接入控制策略中多用户分集的思想。在MAC层，通过对物理层信道质量的判断，节点选择信道质量最好的节点进行数据传输。这样，系统中数据包的冲突有所减少。     

LTE中RRM功能及架构分析

RRM相关功能是LTE的E—UTRAN系统中的一个重要组成部分。通过逐个分析LTE的E～UTRAN系统中的RRM功能,给出了LTE系统中RRM的一种较优的实现架构,对于蜂窝移动通信系统RRM功能的架构设计、实现具有很好的指导意义。     

移动通信系统中的越区切换技术研究

针对切换策略和算法是决定3G网络性能好坏的关键因素之一,文章简单介绍了越区切换的原因,对越区切换的策略进行相关的论述,最后主要介绍了几种典型的越区切换算法,着重对资源预留和呼叫请求排队联合切换算法做了详细的分析.     

CDMA蜂窝网中的无线资源管理

本文对CDMA蜂窝网络中的无线资源管理研究作综述。内容包括功率控制、接纳控制、越区切换和无线分调度等方面，并考虑了多种业务下的服务质量。     

TD-SCDMA/GSM双模终端RRM层的测试研究

协议一致性测试是保证一个网络协议正确实现的关键.RRM一致性测试是TD-SCDMA/GSM双模终端测试的重要组成部分,它对终端的研发和认证具有重要意义.文中介绍了一致性测试的原理和测试工具TTCN,结合同步切换过程,详细介绍了使用TTCN对TD-SCDMA/GSM双模终端RRM层进行测试的具体实现.     

A novel polyethyleneimine-decorated FeOOH nanoparticle for efficient siRNA delivery

Despite the promising prospect of small interfering RNA(siRNA) for the treatment of diverse diseases,it remains challenging to develop novel delive ry materials to desired tissues and cells.In this study,a novel iron oxyhydroxide(FeOOH) nanoparticle(NP) whose surface was modified with branched polyetherimide(PEI) was developed to deliver siRNA into the cancer cells.It was demonstrated that PEI-FeOOH(PFeOOH) efficiently complexed siRNA,mediated effective cellular uptake and endosomal escape,thereby triggering robust gene silencing in vitro.In addition,PFeOOH/siRNA formulation loading with anti-RRM2 siRNA effectively inhibited the growth of tumor tissues,and exhibited excellent safety profiles in vivo.Therefore,this study conceptually provided a FeOOH-based nucleic acid delivery vesicle which can potentially use to achieve diagnosis and therapy simultaneously.     

Requirements on Satellite Access Node and User Equipment for Non-Terrestrial Networks in 5G New Radio of 3GPP Release-17

For the first time, 3GPP considered in Release-17 the introduction of mobile satellite service (MSS) frequency bands for 3GPP user equipment (UE) direct connectivity with satellites and had to consider the coexistence in adjacent bands with terrestrial networks (TNs). This paper will further explain the most challenging and the main surprising outcomes of this work, which opened new market opportunities for both terrestrial and nonterrestrial stakeholders. 5G New Radio nonterrestrial networks (NTNs) for satellite communications are representing a major breakthrough in the history of telecommunication for the capability of reuniting two different types of services, that is, terrestrial and nonterrestrial, by reusing the same waveform and potentially the same type of terminal. One of the major conclusions of the 5G NR NTN 3GPP work in Release-17 was that NTN UE could reuse the current requirements of the TN UE. For this reason, the same terminal can connect to both TNs and to nonterrestrial satellite constellations. Consequently, the market is not fragmented and therefore there will be a real opportunity for both terrestrial and satellite operators to increase the coverage and the quality of the service all over the world. This is one of the most important breakthroughs that 3GPP Release-17 work was able to justify because it clearly shows that satellite connectivity using 5G NR technology is not only for dedicated satellite 5G NR UE with a higher power class. On the other hand, the 3GPP work also shows that the satellite connectivity does not require a dedicated satellite waveform, because 5G NR waveform based on CP-OFDM (for downlink) and DFT-s-OFDM (for uplink) is sufficient. Another important finding is that TN can coexist with NTN on adjacent channels with relaxed ACIR requirements for the tested simulation scenarios. In fact, the satellite 5G NR requirements are lower when compared with terrestrial base station (BS) requirements from previous 3GPP releases. The satellite ecosystem tremendously changed after these findings, and both satellite and terrestrial stakeholders now see a potential market opportunity.