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由哪个工业路由器负责与核心系统进行可达信息通信?   应该由哪个工业路由器负责与核心系统进行可达信息的通信呢?这个难题是来自于我们仅仅考虑了互连网络选路体系结构而没有考虑管理机构的作用。在全网工业级路由器主干网的网点可以具有复杂的本地结构的情况下,由于网络和工业级路由器都在单独的管理机构控制之下,这个机构就要负责保证其内部的工业无线路由器路由信息的一致性和可用性。另外,管理机构还要选择其内部的一台机器负责向外界提供网络的可达信息。由于工业级4G路由器R2、R3和R4处于同一管理机构的控制之下,管理机构指定R3来通告网络2、3、4的可达信息(我们认为核心系统早就知道网络1的情况,因为有一个核心工业路由器直接与之相连)。4g路由器   从选路的角度来说,处于一个管理机构控制之下的网络和工业级无线路由器群组称为一个自治系统。在一个自治系统内的路由器可以自由地选择寻找路由、广播路由、确认路由以及检测路由的一致性的机制。在这样的定义下,核心工业级路由器自己也构成一个自治系统。我们说过原先的Internet网的核心路由器使用GGP来进行通信,而后来改为使用SPREAD。这个改变并不影响其他的全网通工业路由器自治系统。   为了能通过Internet到达隐藏在自治系统中的网络,每个自治系统必须把自己工业级全网通路由器的网络可达信息传播给其他自治。虽然在核心体系结构中可以把全网通工业路由器路由通告送给任一个自治系统,但是每个自治系统有必要把自己的信息传送给某个核心工业路由器。有可能存在若干工业级无线路由器,每个负责通知一个网络子集合。   我们对自治系统的定义可能有点含糊不清,但是在实践中自治系统之间的划分必须区分严格,以便于使用自动选路算法。例如,一个自治系统属于某个公司,它可能不会选择这样的工业级4G路由器路由,把工业4G路由器分组转发到与之直接相连的但属于另一个公司的某个自治系统。为了让自动选路算法能区分各个自治系统,各自治系统被赋予一个自治系统编号(autonomous...

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路由转发协议和选择协议是相互配合又相互独立的概念   当IP子网中的一台主机发送IP分组给同一IP子网的另一台主机时,它将直接把IP分组送到网络上,对方就能收到。而要送给不同IP于网上的主机时,它要选择一个能到达目的子网上的路由器,把IP分组送给该工业路由器,由路由器负责把IP分组送到目的地。如果没有找到这样的工业路由器,主机就把IP分组送给一个称为“缺省网关(default...

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工业路由器信息安全风险分析+执行策略+系统实施+漏洞监测+实时响应   1、 工业4G路由器信息安全的五个属性及其含义。   (1)机密性:是指确保只有那些被授予特定权限的人才能够访问到信息。(2)完整性:是指保证信息和处理方法的正确性和完整性。(3)可用性:指确保那些已被授权的用户在他们需要的时候,确定可以访问得到所需要的信息。(4)不可否认性:工业全网路由器信息的不可否认性也称抗抵赖,不可抵赖性,是传统的不可否认需求在信息社会的延伸。(5)可控性:指...

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工业路由器防火墙的局限性和什么是物理隔离   防火墙的局限性。4g路由器   (1)防火墙只能防范经过全网通工业级路由器防火墙的攻击。没有经过全网通工业路由器防火墙的数据,防火墙不能检查。   (2)防火墙防外不防内。   (3)防火墙由于在配置和管理上比较复杂,所以容易造成全网工业路由器安全漏洞。   (4)防火墙无法防范病毒,抵御数据驱动式的攻击。   (5)防火墙不能防止利用标准网络协议中的缺陷以及服务器系统的漏洞进行的攻击。   (6)防火墙不能防止全网工业级路由器本身的安全漏洞的威胁。   4g无线路由器:什么是物理隔离。中国电子政务网之间与外网之间是什么关系。全网路由器物理隔离是指内外网络在物理上是完全独立、断开的,没有任何物理连接,但在逻辑上则保持连接,能够进行适度的数据交换。关系:电子政务内网和电子政务外网之间是物理隔离,电子政务外网与公网之间是逻辑隔离。物理隔离的原理1正常情况下,全网通路由器隔离设备和外网、隔离设备和内网、外网和内网之间是完全断开的。隔离设备可以理解为纯粹的存储介质和一个单纯的物理隔离控制设备。2当外网需要有数据到达内网的时候,以电子邮件为例,外部的服务器立即发起对工业4G路由器隔离设备的非TCP/IP的数据连接,隔离设备将所有的协议剥离,将原始的数据写入存储介质。根据不同的应用,可能有必要对数据进行完整性和安全性检查,如防病毒和恶意代码等。3一旦数据完全写入隔离设备的存储设备,隔离控制设备立即中断与外网的连接。转而发起对工业级4G路由器内网的非TCP的数据连接。隔离设备将存储设备内的数据推向内网。内网收到数据后,立即进行TCP/IP的封装和应用协议的封装,并交给应用系统。在工业路由器隔离控制设备收到数据传输结束的消息后,隔离设备立即切断隔离设备与内网的直接连接。这时整个网络又重新恢复到完全隔离状态。4如果这时内网有电子邮件要发出,隔离控制设备收到内网建立过接的请求后,建立与工业级路由器内网之间的非TCP/IP的数据连接。隔离设备剥离所有的TCP/IP和应用协议,得到原始的数据,将数据写入隔离设备的存储介质。如果有必要,就对其进行防病毒处理和防恶意代码检查,然后中断与双卡路由器内网的直接连接。   标签:无线路由器  ...

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SIMATICNET工业以太网具有哪些特点?   在任何一个自动化系统中,通讯都是非常重要的一个环节。在制造自动化和过程控制中,必须要保证通讯的无故障化。工业路由器网络或通讯中的故障可能导致整个系统的瘫痪。系统中断必然会引起很高的成本开销。因此,要尽量避免通讯和网络故障。4g路由器   SIMATICNET工业以太网具有下列特点,可以满足上述要求:   •满足EN50082-2标准中所要求的对干扰的免疫性   •可以对工业级路由器网络中的元件提供24VDC冗余   •可以检测信号错误   •可为低水平工业进行扩展   •满足EMC条件   •冗余网络结构   冗余网络结构可保证网络底层的工作稳定性,即使网络发生了错误。在自动化,尤其是过程控制中,更要求工业4G路由器系统有较高的适应性,通过使用高端的终端设备可以达到此要求。4g路由器   环形冗余   仅仅通过使用附加的电缆,就可以将工业级4G路由器网络构建成环型,从而获得效率高且经济的冗余网络。如果网络主动元件实效或电缆断路时,网络只需花费几毫秒的时间进行自主配置。因此,可以避免在昂贵的生产线中发生工业4G无线路由器网络故障。SIMATICNET环型冗余网络可以用光纤和双绞线构建,传输速率可达工业以太网标准。   信号传输原理   信号传输原理实现了一种简单且非常经济的手段对网络进行监视。尤其是对冗余网络非常有效。由于介质冗余,工业级4G无线路由器通讯连续性和传输路径这些错误很难被发现,会导致在后续的通讯中出现网络完全瘫痪。如果使用DIN星型连接器OLM,所有的主动4G工业路由器工业以太网网络元件共同形成了为信号接触器。通过4G路由器网络元件的共同配合,提供了24VDC可以对各元件或网络做出不同状态的信号指示。这些指示也可以3G无线路由器连接至HMI系统(比如WinCC)。这样,在故障发生后,所有的错误都可以被及时的修复。除了信号接触器外,网络元件也可以安装LEDs,以显示不同的状态。   网络管理   在很多情况下,都是通过信号接触器来对FDD-LTE路由器网络进行监视。但并不是所有场合都适合用信号接触器来监控网络,尤其是大型,多分支网络以及无法读取数字信号的终端设备。   因此,SIMATICNET带有网络管理功能,通过新型的OSM/ESM(光电转换模块/电气转换模块)可以对网络TDD-LTE路由器进行管理,监测和诊断。   标签:4g无线路由器   ...

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H685系列4G FDD LTE无线路由器

文章目录 : 产品文章, 伊林思产品FAQ

 H685t 4G LTE无线路由器网络参数

 

版本:4G LTE版本,FDD-LTE;

 

支持网络:4G LTE(FDD), 3G WCDMA HSPA+/HSUPA/HSDPA/UMTS或3G CDMA2000 EVDO, 2G EDGE/GPRS/GSM或2G CDMA;

 

网络频点:
4G FDD LTE:
Band 1–2100Mhz
Band 2–1900Mhz
Band 3–1800Mhz
Band 4—AWS(1700/2100Mhz)
Band 5–850Mhz
Band 7–2600MHz
Band 8–900Mhz
Band 12–700Mhz
Band 13–700(B13)Mhz
Band 17–700(B17)/AWS
Band 19—800Mhz
Band 20–DD800Mhz
Band 21
Band 25 –1900Mhz G Block
Band 31– 450Mhz

其他FDD LTE频段…
CDMA1x/EVDO: 800Mhz或800/1900Mhz
UMTS/HSPA/HSUPA/HSPA/HSPA+ (WCDMA/FDD): 2100Mhz,可选900/2100Mhz或850/1900/2100MHz或850/900/1900/2100Mhz/AWS;

EGSM 850/900/1800/1900全频;

 

理论带宽:

HSPA+: 下行21/42Mbps, 上行5.76Mbps;
HSPA: 下行14.4Mbps, 上行5.76Mbps;
HSUPA: 下行7.2Mbps, 上行5.76Mbps;
HSDPA: 下行7.2 Mbps, 上行384kbps;
WCDMA/UMTS: 下行/上行384kbps;

 

EDGE: 下行 236.8kbps, 上行118kbps;
GPRS: 下行 85.6 kbps, 上行42.8kbps;

 

CDMA1x: 下行/上行 153.6kbps;
CDMA EVDO:
Rev B: 下行14.7Mbps, 上行5.4Mbps
Rev A: 下行3.1Mbps, 上行2.4Mbps
Rev O: 下行2.4Mbps, 上行153.6kbps

 

4G LTE: 100/150/300Mbps 下行, 上行50Mbps

 

注:以上均为理论峰值。实际带宽与网络质量有关。

E-Lins H685wrt quick start

文章目录 : 产品文章, 伊林思产品FAQ

Before Installation and Configuration

1. H685 router has different version. Study your router version before installation.

2. For GSM/GPRS/EDGE/HSDPA/HSUPA/HSPA/HSPA+/4G LTE version, please get a SIM card with data business.

3. For CDMA2000 EVDO/CDMA1x version, please get a UIM card with data business or inform us before order if the network uses non-ruim (nam-flashing).

4. Make sure the sim card or uim card is with enough data business and balance.

5. Make sure the signal is good enough where you test or install the router. Weak signal will make the router no work. If you find your signal strength is not good, please contact us for high gain antenna.

6. Different countries and carriers use different network band and frequency. E-Lins packs units with free world-wide-use antenna. It can work, but the data speed or signal may not be good at your sites. Please buy dedicated high gain antenna from your local suppliers or contact E-Lins to OEM/ODM the antenna.

Notes: This quick start is for GSM/GPRS/EDGE/HSDPA/HSUPA/HSPA+/TD-SCDMA/4G LTE network only. For EVDO network or CDMA network, please refer to manual or contact us freely.

Step 1) Confirm the sim card if can work with other 2G/3G/4G router or modem. If the sim card can not work, the router will not work correctly.

Step 2) Connect the H685 Router LAN port to a PC via RJ45 cable. Make the PC automatically to get the IP, Submask, DNS. The PC will be get a IP of 192.168.1.xxx.

Step 3) At PC web browser, please type: http://192.168.1.1 Username: admin Password: admin

Research: China IoT Market is expected to Worth 121.45 Billion USD by 2022

文章目录 : 其他, 技术相关

According to the new market research report China IoT Market by Hardware (Processor, Memory, Logic, Sensor, & Connectivity), Software (Real-Time Streaming, Network Security, Data Management, Remote Monitoring, & Bandwidth Management), Platform, Service, and Application – Global Forecast to 2022,published by MarketsandMarkets, the market is expected to reach USD 121.45 Billion by 2022, at a CAGR of 41.1% between 2016 and 2022.

The major factors driving this market are the growing demand for smartphone and other connecting devices, the increasing internet penetration, rising trends of industrial automation, and mainstream adoption of cloud computing.

A Brief Introduction of US largest Operator Verizon

文章目录 : 其他, 技术相关

Verizon Communications, Inc. (simply known as Verizon), is a broadband telecommunications company and the largest U.S. wireless communications service provider as of September 2014, and a corporate component of the Dow Jones Industrial Average. The company is based at 1095 Avenue of the Americas in Midtown Manhattan, New York City, but is incorporated in Delaware.

 

What eventually became Verizon was founded as Bell Atlantic, which was one of the seven Baby Bells that were formed after AT&T Corporation was forced to relinquish its control of the Bell System by order of the Justice Department of the United States. Bell Atlantic came into existence in 1984 with a footprint from New Jersey to Virginia, with each area having a separate operating company (consisting of New Jersey Bell, Bell of Pennsylvania, Diamond State Telephone, and C&P Telephone).

 

As part of the rebranding that the Baby Bells took in the mid-1990s, all of the operating companies assumed the Bell Atlantic name. In 1997, Bell Atlantic expanded into New York and the New England states by merging with fellow Baby Bell NYNEX. In addition, Bell Atlantic moved their headquarters from Philadelphia into the old NYNEX headquarters and rebranded the entire company as Bell Atlantic.

 

In 2000, Bell Atlantic merged with GTE, which operated telecommunications companies across most of the rest of the country that was not already in Bell Atlantic’s footprint. Bell Atlantic, the surviving company, changed its name to “Verizon”, a portmanteau of veritas (Latin for “truth”) and horizon.

 

As of 2016, Verizon is one of three companies that had their roots in the former Baby Bells. The other two, like Verizon, exist as a result of mergers among fellow former Baby Bell members. One, SBC Communications, bought out its former parent AT&T Corporation and assumed the AT&T name. The other, CenturyLink, was formed initially in 2011 by the acquisition of Qwest (formerly named US West).

LTE CAT4/CAT6释义

文章目录 : 其他, 技术相关

LTE CAT4/CAT6释义

  LTE CAT全名LTE UE-Category,拆开来解释, LTE指的是4G LTE网络、UE是指用户设备、Category翻译为等级。通顺解释就是用户设备能够支持的4G LTE网络传输速率的等级,也可以说成是4G网络速度的一个技术标准。所以LTE CAT4/CAT6就是指用户设备LTE网络接入能力等级为4或6。

  既然等级不同,那么其能力也肯定是不一样的,下面我们来看看LTE CAT4/CAT6影响了什么性能,分别是什么水平。简单来说,LTE CAT影响的就是4G LTE上行、下行网络速度的上限,通俗来讲就用户设备所能达到的上传、下载速度最大值。

r_4912859[1]

  在LTE CAT中不仅有4、6两个等级,上表是我们罗列的目前已知的LTE CAT等级以及对应的最大传输速度。其中LTE CAT4/CAT6也是目前4G手机的网络传输技术水平,而速度更快的CAT7和CAT8则仍处于实验室阶段,并未商用开发。

  

H685 Cellular Router Datasheet

文章目录 : 产品文章, 伊林思产品FAQ

>>| Product Introduction

The H685 series Cellular Router designed for establish a 2G/3G/4G cellular and Wi-Fi wireless network and share a cellular broadband connection. The H685 series Cellular Router enables users to quickly create a secure Wi-Fi (802.11 b/g/n) network and provide access to the Internet using a cellular network. By connect to cellular mobile network; an Internet connection can be accessed and shared virtually anywhere within a wireless broadband network.

 

E-Lins’ mobile data products are widely used in more than twenty industrial fields, such as power control, water schedule, traffic, oil field, weather forecast, environmental protection, street lamp control, post, bank and many other areas.

 

H685 Cellular Router Datasheet

What is OpenWrt

文章目录 : 其他, 技术相关

OpenWrt is an embedded operating system based on the Linux kernel, primarily used on embedded devices to route network traffic. The main components are the Linux kernel, util-linux, uClibc or musl, and BusyBox. All components have been optimized for size, to be small enough for fitting into the limited storage and memory available in home routers.
OpenWrt is configured using a command-line interface (ash shell), or a web interface (LuCI). There are about 3500 optional software packages available for installation via the opkg package management system.
OpenWrt can run on various types of devices, including CPE routers, residential gateways, smartphones, pocket computers (e.g. Ben NanoNote), and laptops. It is also possible to run OpenWrt on personal computers, which are most commonly based on the x86 architecture.
History
The project came into being because Linksys built the firmware for their WRT54G series of wireless routers from publicly available code licensed under the GPL. Under the terms of that license, Linksys was required to make the source code of its modified version available under the same license, which in turn enabled independent developers to create additional derivative versions. Support was originally limited to the WRT54G series, but has since been expanded to include many other chipsets, manufacturers and device types, including Plug Computers and Openmoko mobile phones.
Using this code as a base and later as a reference, developers created a Linux distribution that offers many features not previously found in consumer-level routers. Some features formerly required proprietary software. Before the introduction of OpenWrt 8.09, using Linux 2.6.25 and the b43 kernel module, WLAN for many Broadcom-based routers was only available through the proprietary wl.o module that was also provided for Linux kernel version 2.4.x only.
The code names of OpenWrt branches are named after alcoholic beverages, usually including their recipes in the MOTD as well, cf. White Russian, Kamikaze, Backfire, Attitude Adjustment, Barrier Breaker.
The bleeding edge development trunk was confusingly also called Kamikaze until February 2011 but with r25514 it was renamed as “Attitude Adjustment” and is now being constantly renamed to the next stable name.
Features
OpenWrt follows the bazaar-philosophy and is known for an abundance of options. Features include:
• A writable root file system, enabling users to add, remove or modify any file. This is accomplished by using overlayfs to overlay a read-only compressed SquashFS file system with a writable JFFS2 file system in a copy-on-write fashion. JFFS2 supports flash wear leveling.
• The package manager opkg, similar to dpkg, enables users to install and remove software. The package repository contains about 3500 packages. This contrasts with Linux-based firmwares based on read-only file systems without the possibility to modify the installed software without rebuilding and flashing a complete firmware image.
• A set of scripts called UCI (unified configuration interface) intended to unify and simplify the configuration of the entire system
• Extensible configuration of the entire hardware drivers, e.g. built-in network switches and their VLAN-capabilities, WNICs, DSL modems, FX, available hardware buttons, etc.
• Exhaustive possibilities to configure network-related features, like:
• IPv4 support.
• IPv6 native stack:
• Prefix Handling,
• Native IPv6 configuration (SLAAC, stateless DHCPv6, stateful DHCPv6, DHCPv6-PD),
• IPv6 transitioning technologies (6rd, 6to4, 6in4, ds-lite, lw4o6, map-e),
• Downstream IPv6 configuration (Router Advertisement, DHCPv6 (stateless and stateful) and DHCPv6-PD).
• Routing through iproute2, Quagga, BIRD, Babel etc.
• Mesh networking through B.A.T.M.A.N., OLSR and IEEE 802.11s-capabilities of the WNIC drivers
• Wireless functionality, e.g. make the device act as a wireless repeater, a wireless access point, a wireless bridge, a captive portal, or a combination of these with e.g. ChilliSpot, WiFiDog Captive Portal, etc.
• Wireless security: Packet injection, e.g. Airpwn, lorcon, e.a.
• Stateful firewall, NAT and port forwarding through netfilter; additionally PeerGuardian is available
• Dynamically-configured port forwarding protocols UPnP and NAT-PMP through upnpd, etc.
• Port knocking via knockd and knock
• TR-069 (CWMP) client
• IPS via Snort (software)
• Active queue management (AQM) through the network scheduler of the Linux kernel, with many available queuing disciplines. CoDel has been backported to Kernel 3.3. This encapsulates Traffic shaping to ensure fair distribution of bandwidth among multiple users and Quality of Service (QoS) for simultaneous use of applications such as VoIP, online gaming, and streaming media without experiencing the negative impacts of link saturation.
• Load balancing for use with multiple ISPs using source-specific routing
• IP tunneling (GRE, OpenVPN, pseudowire, etc.)
• Extensible realtime network monitoring and statistics through e.g. RRDtool, Collectd, Nagios, Munin lite, Zabbix, etc.
• Domain Name System (DNS) and DHCP through Dnsmasq, MaraDNS, etc.
• Dynamic DNS services to maintain a fixed domain name with an ISP that does not provide a static IP address
• Wireless distribution system (WDS) including WPA-PSK, WPA2-PSK, WPA-PSK/WPA2-PSK Mixed-Mode encryption modes
• OpenWrt supports any hardware that has Linux support; devices that can be connected (e.g. over USB) to an embedded device include
• Printers
• Mobile broadband modems
• Webcams
• Sound cards
• Notable software packages to use the hardware support are:
• File sharing via SAMBA, (Windows-compatible), NFS and FTP, printer sharing over the print server CUPS (spooling) or p910nd (non-spooling)
• PulseAudio, Music Player Daemon, Audio/Video streaming via DLNA/UPnP AV standards, iTunes (DAAP) server
• Asterisk (PBX)
• MQ Telemetry Transport through Mosquitto
• An extensive Ajax-enabled web interface, thanks to the LuCI project
• Regular bug fixes and updates, even for devices no longer supported by their manufacturers

 

Link to E-Lins OpenWrt Products:

http://www.e-lins.com/EN/download/H685_Datasheet_Eng.pdf

http://www.e-lins.com/EN/download/H820_Datasheet_Eng.pdf

http://www.e-lins.com/EN/download/H850_Datasheet_Eng.pdf

http://www.e-lins.com/EN/download/H860_Datasheet_Eng.pdf

E-Lins Frequently-used module parameters

文章目录 : 伊林思产品FAQ, 技术相关

Supplier Module type Area Parameters
Ericsson F3307 UMTS/HSDPA/HSUPA: 2100/900MHz
GSM/GPRS/EDGE:1900/1800/900/850MHz;
Download Speed: 7.2Mbps;    Upload Speed: 5.76Mbps
Ericsson F3607gw UMTS/HSDPA/HSUPA: 2100/1900/850MHz
GSM/GPRS/EDGE:1900/1800/900/850MHz;
Download Speed: 7.2Mbps;    Upload Speed: 5.76Mbps
Ericsson F5521gw Global UMTS/HSDPA/HSUPA/HSPA+: 2100/1900/900/850MHz
GSM/GPRS/EDGE:1900/1800/900/850MHz;
Download Speed: 21Mbps;    Upload Speed: 5.76Mbps
Ericsson F5321gw Global UMTS/HSDPA/HSUPA/HSPA+: 2100/1900/900/850MHz
GSM/GPRS/EDGE:1900/1800/900/850MHz;
Download Speed: 21Mbps;    Upload Speed: 5.76Mbps
Huawei MU736 Global UMTS/HSDPA/HSUPA/HSPA+: 2100/1900/900/850MHz/AWS
GSM/GPRS/EDGE:1900/1800/900/850MHz;
Download Speed: 21Mbps;    Upload Speed: 5.76Mbps
Huawei MU709s-6 South America HSPA+/UMTS tri-band 850/1900/2100 MHz
GSM/GPRS quad-band 850/900/1800/1900 MHz
Huawei MU709s-2 Europe, Asia, Africa HSPA+/UMTS dual-band 900/2100 MHz
GSM/GPRS quad-band 850/900/1800/1900 MHz
Huawei MU609 HSPA+/UMTS quad-band 850/900/1900/2100 MHz
GSM/GPRS quad-band 850/900/1800/1900 MHz
Huawei ME909s-120 Most of Europe, Asia, Africa and South America LTE FDD: 2100/1900/1800/1700AWS/850/2600/900/800Mhz
(B1/B2/B3/B4/B5/B7/B8/B20)
3G: 850/900/1900/2100Mhz
2G: 850/900/1800/1900Mhz
Download Speed: 150Mbps;    Upload Speed: 50Mbps
Huawei ME909s-821 LTE FDD: 2100/1800/900Mhz  (B1/B3/B8)
LTE TDD: B38/B39/B40/B41
3G WCDMA: 2100/850/900/1700Mhz (B1/B5/B8/B9)
3G TD-SCDMA: B34/B39
2G GSM: 900/1800Mhz
Huawei ME909u-521 Most of Europe, Asia, Africa FDD LTE: 2600/2100/1900/1800/900/850/800Mhz (B1/B2/B3/B5/B7/B8/B20);
DC-HSPA+/HSPA+ /HSPA/UMTS: 850/900/1900/2100MHz(B1/B2/B5/B8),
EDGE/GPRS/GSM: 1900/1800/900/850MHz;
Download Speed: 100Mbps;    Upload Speed: 50Mbps
Huawei ME909u-523 US, South America LTE FDD: 1900/1700AWS/850/700Mhz(B2/B4/B5/B17)
DC-HSPA+/HSPA+ /HSPA/UMTS: 1900/1700AWS/850Mhz(B2/B4/5)
GSM: 850/900/1800/1900Mhz
Download Speed: 100Mbps;    Upload Speed: 50Mbps
Huawei ME906s-158 (M.2/NGFF) Europe, Asia and Oceania B28 LTE FDD:B1,B2,B3,B5,B7,B8,B20,B28
DC-HSPA+/HSPA+/HSPA/WCDMA:B1,B2,B5,B8
EDGE/ GPRS/GSM 1900/1800/900/850 MHz
Huawei ME906j (M.2/NGFF) Japan KDDI:
LTE: FDD Band 11, 18, all bands with diversity
CDMA 1X/CDMA EVDO Rev.B: BC0, BC6, all bands with diversity
GPS/GLONASS: L1
DOCOMO:
LTE: FDD Band 1, 19, 21, all bands with diversity
WCDMA/HSDPA/HSUPA/HSPA+: Band 1,5,6,19, all bands with diversity
GPS/GLONASS: L1
Huawei ME936 LTE (FDD) B1/B2/B3/B4/B5/B7/B8/B13/B17/B20
Penta-band DC-HSPA+/HSPA+/HSPA/UMTS B1/B2/B4/B5/B8
Quad-band EDGE/ GPRS/GSM 1900/1800/900/850 MHz
Sierrawireless MC7304 Most of Europe, Asia, Africa FDD LTE: B1/B3/B7/B8/B20  800/900/1800/2100/2600MHz(相对应为band 20/8/3/1/7)
WCDMA: 800/850/900/1900/2100 MHz(B6,B5,B8,B2,B1)
GSM 850/900/1800/1900MHz
Sierrawireless MC7354 US FDD LTE: 1900(B2), AWS(B4)
850(B5),700 (B13), 700(B17), 1900(B25)
UMTS/HSPA+: 2100(B1), 1900(B2), AWS(B4),850(B5),  900(B8)
CDMA EVDO/1x: BC0, BC1, BC10
Quad-Band EDGE/GPRS/GSM
Sierrawireless MC7350 US LTE: AWS(B4), 700(B13), 1900(B25)
CDMA 1x, EVDO Rev A:
BC0,BC1,BC10
Sierrawireless MC7330 Japan LTE: 2100 (B1), 850 (B19), 1500 (B21)
UMTS/HSPA+: 2100 (B1), 850 (B5) 800 (B6), 850 (B19)
Quad-Band EDGE/GPRS/ GSM
Sierrawireless MC7430 APAC FDD LTE:  B1, B3, B5-9,B18, B19, B21, B28                                                             TDD LTE:  B38,39,40,41                                                                                                    UMTS/HSPA+:2100(B1)  850(B5)/800(B6)/900(B8)/1800(B9)/850 (B19)
TD-SCDMA: B39(1900Mhz)
Sierrawireless ME3760 TDD LTE, LTE: 2600/2300/1900 (B38/B39/B40+B7);
TD-SCDMA: 2010~2025MHz/1880~1920MHz (B34/B39),
EDGE/GPRS/GSM: 1900/1800/900/850MHz;
Longsung U8301 Most of Europe, Asia, Africa FDD LTE: 2600/2100/1800/900/850MHz (B1/B3/B5/B7/B8)
DC-HSPA+/HSPA+ /HSPA/UMTS: 850/900/2100MHz (B1/B5/B8);
EDGE/GPRS/GSM: 1900/1800/900/850MHz;
Download Speed: 100Mbps;    Upload Speed: 50Mbps
Longsung U8300c TDD LTE: band38/39/40/41
FDD LTE: band1/3
TD-SCDMA: band34/39
UMTS: Band1
EVDO/CDMA1x: 800Mhz
GSM: 850/900/1800/1900Mhz
三旗 LM9206_ZAK Europe, Asia and Oceania B28 TDD LTE: band38/40
FDD LTE: band1/2/3/5/7/8/28
TD-SCDMA: none
UMTS: Band1/2/5/8
GSM: 850/900/1800/1900Mhz
三旗 LM9206_ZBK
(已经停产)
Most of Europe, Asia, Africa TDD LTE: band38/40
FDD LTE: band1/3/7/8/20
TD-SCDMA: none
UMTS: Band1/8
GSM: 850/900/1800/1900Mhz
Download Speed: 150Mbps;    Upload Speed: 50Mbps
三旗 LM9206_ZCK TDD LTE: none
FDD LTE: band1/2/5/7/8/28
TD-SCDMA: none
UMTS: Band1/5/8
GSM: 850/900/1800/1900Mhz
三旗 LM9206_ZDK Europe TDD LTE: band38/40
FDD LTE: band1/3/5/8
TD-SCDMA: none
UMTS: Band1/5/8
GSM: 850/900/1800/1900Mhz
三旗 LM9206_ZEK Europe, Asia TDD LTE: band38/39/40/41
FDD LTE: band1/2/3/5/7/8
TD-SCDMA: 34/39
UMTS: Band1/2/5/8
GSM: 850/900/1800/1900Mhz
三旗 LM9265 Europe, Asia TDD LTE: band38/39/40/41
FDD LTE: band1/3/5/7/8
TD-SCDMA: 34/39
UMTS: Band1/2/5/8
GSM: 850/900/1800/1900Mhz
CDMA/EVDO: BC0 800Mhz
ZTE ZM8620-A South America LTE TDD: band38
LTE FDD:2100/1900/1700 AWS/2600/850/900/700Mhz(B1/B2/B4/B5/B7/B8/B12)
DC-HSPA+/HSPA+ /HSPA/UMTS: 2100/1900/900/850/1700(AWS)Mhz
GSM: 850/900/1800/1900Mhz
Forge SLM630 TDD LTE: 2600/2300/1900 (B38/B39/B40/B41);
FDD LTE: 2100/1800/2600Mhz(B1/B3/B7);
DC-HSPA+/HSPA+ /HSPA/UMTS: 2100/1900/850Mhz (B1/B2/B5)
TD-SCDMA: 2010~2025MHz/1880~1920MHz (B34/B39),
EDGE/GPRS/GSM: 1900/1800/900/850MHz;
Download Speed: 100Mbps;    Upload Speed: 50Mbps
Forge SLM630b TDD LTE: 2600/2300/1900 (B38/B39/B40/B41);
FDD LTE: 2100/1800/2600Mhz(B1/B3/B7)
DC-HSPA+/HSPA+ /HSPA/UMTS: 2100/1900/850Mhz (B1/B2/B5)
TD-SCDMA: 2010~2025MHz/1880~1920MHz (B34/B39),
EDGE/GPRS/GSM: 1900/1800/900/850MHz;
EVDO/CDMA:BC0-800Mhz
Download Speed: 100Mbps;    Upload Speed: 50Mbps
LP41 FDD LTE, LTE: 450/800/1800/2600Mhz (B31/20/3/7)
Wetele WPD600N FDD LTE, LTE: 450/800/1800/2600Mhz (B31/20/3/7)

4G网络的语音解决方案

文章目录 : 技术相关

4G商用已经有一段时间了。国内三家运营商各自使用的4G有些区别。 比如中国联通主要使用TDD LTE技术,而电信与联通主要使用FDD LTE技术。

目前4G主要有三种语音通话的解决方案:双待机、CSFB(Circuit Switched Fallback(电路域回落)和VoLTE(也及Voice over LTE)
1—-双待机:就是4G和3G/2G同时待机,4G用来上网,3G/2G则用来打电话,这种技术手机内部有两套射频发射系统,可想而知,这种技术,手机电池最多撑不到一天的,充电宝赚钱的机会是这样来的:)

2—-CSFB:就是通话时回落到2G模式(无法上网),通话结束后再恢复到4G/3G情况下,这种技术只使用一套射频芯片,现在我们4G测试主要是测试这种方案,毕竟4G网络还在建设中,有一些区域还没有完成覆盖到,这时切换很重要的。苹果用于电信的A1533的回落技术则另外取了一个名字叫做SRLTE,是一种特殊形式的CSFB。
—在国内,可以用DINGLI连三星和索爱的手机可以进行测试,有一些项目直接用IPHONE5S进行体验测试,在国外,主要用NEMO连三星,很少看到有用TEMS来测试!

3—-VoLTE:这种技术牛B呢,它是架构在4G网络上全IP条件下的端到端语音方案,接入时延大大提升,基本上没有掉话,以后肯定主要用这种技术了,毕竟2G时代快结束了,目前这种技术主要用于4G全覆盖的区域。
—测试软件方面,据说要用CHARIOT!

所以,严格的说,LTE网络只是数据网,在未实现VOLTE的情况下,LTE只能称之为3.5G,或是缺陷4G,只有包含了完美语音方案,不依赖2、3G网络的才能叫做4G网络。毕竟对于数据,语音还是很重要的。

SGLTE,SVLTE,SRLTE与CSFB的区别

文章目录 : 技术相关

现在LTE已经广泛商用与三家运营商(中国移动,中国联通及中国电信)。 但是有些概念,我们需要分清下。比如SGLTE, SVLTE, CSFB及SRLTE。

SVLTE(Simultaneous Voice and LTE):即双待手机方式。手机同时工作在LTE和CS方式,前者提供数据业务,后者提供语音业务。

SGLTE (simultaneous GSM and LTE):LTE与GSM同步支持,终端包含了两个芯片。一个是支持LTE的多模芯片,一个是GSM的芯片。可以支持数据语音同时进行 。

SVLTE同SGLTE基本是一个概念,是一种单卡双待策略,手机插入一张卡,但可以同时工作在LTE网络和2/3G网络下(如果23G网络是CDMA,则是SVLTE,如果23G网络是GSM/UTRAN的,则是SGLTE),这样数据业务使用LTE网络,语音业务用23G网络。可以同时工作。

CSFB则是一种单卡单待的方案,终端只能工作在一个网络下,例如工作在LTE下,当有语音来电时,通过回落的方式回到23G网络下工作,因此采用CSFB方案4G网络和语音是不能同时进行的,注意这里说的是4G网络和语音不能同时进行而不是上网和语音不能同时进行,国内的3大运营商是有区别的,如下:
1.移动4G网络:
移动的3G网络就是移动的痛,移动的网络中当有语音来电时都会选择回落到GSM网络的,极少回落3G网络的,因为移动很清楚自己的3G网络无论是覆盖范围还是信号稳定度都很渣的。大家都知道2G网络不能在打电话的同时连接数据业务,因为移动4G语音回落2G会导致电脑断网的。

2.联通4G网络:
联通3G的WCDMA网络速度快,信号稳定,语音电话时会回落到42Mb/s的3G网络,WCDMA允许通话的同时连接数据业务,从这里可以看出,虽然联通的4G手机如果采用CSFB方案也不支持4G网络和语音同时进行,但是由于其回落到WCDMA网络允许通话的同时连接数据业务,因此语音通话时不会断网,但此时也不是工作在4G模式

3.电信4G网络
由于CDMA与LTE并不是一个体系中的技术,所以LTE语音通话要回落到CDMA,通话结束再返回LTE网络,电信就要在基站上做很大的改动,投入的资金较多的。全球的CDMA运营商都不会选择CSFB方案的。苹果采用了一种折中方案,会同时在CDMA 1x和LTE网络待机,这听起来有点像单卡双待,但CDMA 1x和LTE同时只能有一个进行数据的收发。如果有电话呼入,中断LTE数据业务,把电话接进来的。由于在CDMA 1x和LTE双待机,所以根本就不需要使用回落技术,只要调整阀门,关闭LTE数据收发,就能把通道腾出来,让CDMA 1x进行语音通信。
苹果的这种奇葩的方案,能够让C网运营商稍加改动网络协议就能满足iphone5的需求的,目前这种奇葩方案叫SRLTE。

综上所述,
1、如果终端设备采用的是SGLTE和SVLTE的语音方案,4G网络和语音都是可以同时进行的,不管哪个运营商。
2、采用CSFB的方案的终端设备,移动网络由于会回落到2G,2G又不支持不能在打电话的同时连接数据业务,因此会断网。而联通网络由于回到到的是WCDMA,因此因此语音通话时不会断网,但此时也不是工作在4G模式。
3、SRLTE,这个是专门针对电信CDMA网络的一个方案,采用这种方案的终端设备一样无法同时语音和数据,因此会断网。只有等电信部署好了SRLTE才有更好的体验度。