节能基站构建生态型TD网络

在TD网络建设中实现节能减排是势所必至,而基站节能又是其中的关键。文章详述了中兴通讯自主研发的低能耗绿色基站。其RRU功放效率提高35％以上,基带板每载波功耗降低50％以上;分析了智能单板节电技术和智能时隙节电技术应用于绿色基站所产生的效果。     

基于AI的全场景智能基站节电系统设计与实现

摘 要：在集约化网络的建设背景下,如何实现自动化、智能化、保体验的基站能耗管理,成为当前运营商的运营管理痛点。创新地提出一种全智能检测、全场景建模、全流程自助的3G/4G/5G智能基站节电方案,通过动态时间规整算法区分覆盖场景,利用SARIMA模型预测时间框构建自适应模型,实时监控指标保证用户感知,自动下发节电策略,短信告警及时拉起。在用户无感知的情况下,实现小区粒度级最大限度节约基站能耗。该方法已在某省网络试点推行,试点区域单站平均节电效率可达9.24%每日,具备实际生产指导意义。     

吉林联通基站节能“双管齐下”

根据7月份统计结果,吉林联通全省上半年共节电897万度,节约电费807万元,已完成全年进度的53.8%。近年来,随着中国联通WCDMA网络大规模建设和持续扩容,移动通信基站的网络能耗大幅增加,如何降低基站单位能耗和控制维     

基于智能节电技术实现5G基站节能减排的研究分析

为确保5G基站不会出现能源过度浪费问题,保证各项能源得到合理使用,节能减排理念开始在5G基站中得到推行。为了推广5G基站的节能减排理念,开始应用智能节电技术。文中通过对智能节电技术的介绍,对5G基站能耗情况进行了分析,并着重对智能节电技术在5G基站节能减排中的应用展开了探讨,提高了5G基站的节能减排水平,实现了理想化的智能节电技术应用模式。     

智能符号关断技术在LTE系统的应用研究

常州电信开展FDD-LTE基站节能试点,创新利用智能软件节电技术,实现没有数据发送的符号的关断,在现网LTE较低负荷情况下,普通基站的节能效果达到15％,载波聚合基站的节能效果达到25％,从而解决网络空闲时设备功耗居高不下的问题,实现LTE基站的绿色节能.     

基站智能节电技术的应用探讨

基站智能节电技术作为软件升级技术将随着BTS发展应用前景更加广阔,基站智能节电技术会成为通信运营商绿色基站建设和节能减排的重要手段之一。     

基站节能降耗实践探讨

主要介绍了天津联通在无线网4G/5G基站能耗管理体系化实践应用中的分析方法和工作经验,包括制定关停策略、实施智能化节电手段和效果评估等内容。运用物联网通信技术,远程控制智能断路器执行断开或者闭合指令,形成节能效果最大化的能耗管理新手段。在保障网络质量的前提下,减少基站电费支出,提高网络运行效能。     

基于AI的4G/5G基站协同节电方法研究与应用

本文提出基于AI的4G/5G基站协同节电方法以AI技术为突破口,构建重叠覆盖拓扑结构,研究重叠覆盖核心算法,建立业务长时和短时预测深度学习算法,精细化分析网络业务负荷潮汐效应时段,输出智能节电策略,通过系统自动编辑下发休眠和唤醒指令,在保证网络覆盖和客户业务体验情况下,实现业务闲时4G/5G协同的智能节电,达到移动通信网络整体节能减排效果。     

载频智能节电技术在TD-LTE通信网络中的应用

在移动通信网络的能耗中,基站的能耗超过了整个通信系统能耗的70%,为了能够实现移动运营商的节能目标,对于无线基站节能减耗技术的研究将是一个非常重要的方面。首先从移动通信基站节能的现状出发,分析了TD-LTE系统中基站主设备智能节电系统设计的必要性。在分析无线网络话务时间规律的基础上,针对移动通信网络话务潮汐的特点,根据TD-LTE系统基站主设备的运行原理,分析了载频关断技术在TD-LTE基站系统中实现节能降耗的方法,提出了载频智能关断技术在TD-LTE基站系统中设计原则和技术方案,并且通过测试验证得出了载频智能关断技术在TD-LTE网络中运行的可行性。最后,对此项技术规模性应用所取得的节能效果进行了总结并提出应用建议。     

LTE基站智能节能技术的研究和实践

随着LTE网络规模建设的发展,为积极响应国家节能减排的号召,持续探索节能减排新技术,努力实现网络端降本增效、价值运营创新突破,助力企业经营发展,通过对LTE关键技术原理的深入研究,结合网络运营实际场景、综合考虑节能效果、业务运行、运行管理指标等方面影响,针对LTE基站智能节能技术进行研究和实践,实践结果表明,应用LTE基站智能节能技术,各项网络性能和用户感知指标无劣化,单站节电比例为7%-17%,单月节省电费成本10%左右。     

Radio range adjustment for energy efficient wireless sensor networks

In wireless ad hoc sensor networks, energy use is in many cases the most important constraint since it corresponds directly to operational lifetime. Topology management schemes such as GAF put the redundant nodes for routing to sleep in order to save the energy. The radio range will affect the number of neighbouring nodes, which collaborate to forward data to a base station or sink. In this paper we study a simple linear network and deduce the relationship between optimal radio range and traffic. We find that half of the power can be saved if the radio range is adjusted appropriately compared with the best case where equal radio ranges are used.     

The offloading model for green base stations in hybrid energy networks with multiple objectives

Based on green energy prediction and storage, a novel green base station (GBS) offloading model is proposed and can be employed with multiple objectives in this paper to save energy. By predicting the value of green energy collected by GBS and updating the residual energy of each GBS, we can obtain the maximum number of users that each GBS can offload theoretically. Then, the optimum number of users should be calculated in order to achieve different network performance. Eventually, under the restrictions of the maximum number of users and the optimum number of users, we can finish offloading for traditional base station in the network. Simulation results demonstrate that through the proposed GBS offloading model, we can fulfill compromise between maximizing green energy utilization and load balancing in the offloading process, and the effect of energy saving is remarkable. Copyright © 2016 John Wiley & Sons, Ltd.     

基于合同能源管理的移动基站节能技术与应用

随着国内移动通信网络建设的发展深入,移动通信基站的总体数量迅猛发展,节能潜力很大。本文把能源合同新型的管理模式与基站节能技术结合起来,通过合同能源管理的方式推广基站节能减排措施的一种新应用方式。     

有效降低无线网络节点能量的LEACH新算法

LEACH是一种低功耗自适应按簇分层路由算法.为了降低节点能耗,在LEACH协议的基础上提出了在选举簇头时,改变阈值T(n)的大小以降低节点成为簇头的概率,从而节省网络因分簇而消耗的能量.同时又提出了一种基于节点剩余能量的二层簇头的算法,该算法能使节点减少将冗余信息传输到基站,从而达到降低节点消耗能量的目的.通过实验仿真,表明这些方法能使网络节点能量的消耗减少,达到了延长网络生命周期的目的.     

5G基站智能节能方案研究

提出一种5G基站智能节能方案,用于降低5G基站设备能耗、节省5G网络运营成本、实现移动通信行业节能减排.所提方案是基于人工智能技术,从网络层面统一配置4G/5G基站节能策略,根据网络选定区域内小区的历史业务数据,构建基站业务负荷预测模型,并生成最优的网络节能策略,根据网络节能策略分别执行各基站的节能任务.在节能任务执行...     

一种改进的基于时间竞争成簇的路由算法

为平衡无线传感器网络中的簇头负载并进一步降低多跳传输能耗,文中提出了一种改进的基于时间竞争成簇的路由算法。该算法通过限制近基站节点成簇入簇,以防止近基站节点成簇入簇的节能收益无法补偿成簇入簇能耗;利用基站广播公共信息和基于时间机制成簇,以减少节点基本信息交换能耗;通过候选簇头中继来平衡簇头负载。候选簇头的评价函数综合考虑了剩余能量和最优跳数的理想路径,以期在保持中继负载平衡的基础上尽量降低多跳能耗。仿真结果显示,该算法较LEACH和DEBUC算法延长了以30%节点死亡为网络失效的网络生存周期,表明该算法在降低节点能耗和平衡负载方面是有效的。     

Base station networking in personal communications

Base stations in personal communications serve as the interface between portable terminals and their central offices. For many reasons, such as cost-effectiveness, higher reliability, simpler handover, and simple clock distribution, it is desirable to use a network instead of point-to-point links to connect base stations to their central offices. The author considers a base station network that has a regular rectangular mesh topology and an access protocol that is based on the slotted ring. The mesh topology provides clock distribution which can synchronize the timing for time-division multiple access (TDMA) or frequency-division multiaccess (FDMA) radio access when the network is physically regular. The slotted-ring protocol provides simple medium access, simple interface with TDMA or FDMA radio channels and simpler handover processing. The author also discusses how base station networks in different central office zones can be interconnected to form a metropolitan area network for both voice and data traffic     

中国移动通信基站动力配置标准

针对不同配置的基站类型,详细制定基站的市电引入等级、容量、方式,以及相应的电源、空调配置标准。     

光载射频拉远技术的应用

光载射频拉远系统是一种新型的分布式网络覆盖模式,它通过基带与射频分离的方式,将基带部分集中处理,采用光纤将基站中的射频模块拉到远端射频单元,分置于需要覆盖的站点上,从而节省了常规解决方案所需要的大量机房。同时,通过采用大容量宏基站支持大量的光纤拉远,可实现容量与覆盖之间的转化。此外,射频拉远系统可以还可以支持高速铁路,超远距离覆盖等场景,是3G网络中应用最为广泛的一种技术。     

Improving the capacity in wireless networks through integratedchannel base station and power assignment

The limited availability of radio frequency spectrum will require future wireless systems to use more efficient and sophisticated resource allocation methods to increase network capacity. In this work, we propose a joint resource allocation algorithm (JRAA) that makes the channel base station and power assignment in a wireless network with an arbitrary number of base stations and mobiles attempting to minimize the number of channels needed to provide each user in the system with an acceptable radio connection. We compare the performance of the JRAA for both the forward (downstream) and reverse (upstream) directions, in terms of the achievable traffic capacity, with some bounds on the performance of the maximum packing (MP), clique packing (CP), and reuse partitioning (RP) techniques, which are usually used as benchmarks on the capacity that can be achieved by any traffic-adaptive dynamic channel assignment strategy, where the quality is guaranteed by the reuse distance. Those performance results verify the improvement that can be achieved by the integration of the channel base station and power assignment. Finally, several versions of the two-way channel assignment problem are studied and evaluated