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What's the difference between an industrial wireless... Terminal devices have different data access interfaces Wireless router provides one network interface of data access, terminal equipment need only with the network IP address as a gateway to the IP address of the terminal device must use specified or specify the IP address in the address period, and specify the IP address...

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VRRP function on industrial grade router VRRP is a selection protocol that dynamically assigns the responsibilities of a virtual router to one of the VRRP routers on the LAN. The VRRP router, which controls the virtual router's IP address, is called the master router and it forwards packets to these virtual IP addresses. Once the primary router is unavailable,...

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工业网关的功能组成 网关(Gateway)又称网间连接器、协议转换器。网关在网络层以上实现网络互连,是最复杂的网络互连设备,仅用于两个高层协议不同的网络互连。网关既可以用于广域网互连,也可以用于局域网互连。 网关是一种充当转换重任的计算机系统或设备。使用在不同的通信协议、数据格式或语言,甚至体系结构完全不同的两种系统之间,网关是一个翻译器。与网桥只是简单地传达信息不同,网关对收到的信息要重新打包,以适应目的系统的需求。 4G工业网关的基本功能是连接两个异构网络,这在工业物联网场景中尤为常见,因为传感器网络经常使用完全不同于普通网络层(长距离传输网络)的电信号和协议。   4G工业网关功能组成   网络层信号接口 它主要承担网络层信号的对接任务。与感知层信号接口相比,网络层信号接口一般简单得多,因为通常整个系统只需要一个标准的长途网络及其协议,因此相应的硬件接口和数据收发软件相对简单。然而,这并不是说它只能支持一种类型。在实际应用中,工业网关的制造商通常被设计为支持多种形式的长途网络,以实现产品的通用性。特定的表单可以是同时配置多个接口的方式,也可以以配置插件卡的形式设计产品,以便用户可以在离开工厂时选择要配置的不同配置。   传感层信号接口 主要负责传感器网络中各设备信号的对接工作。该模块包括用于不同电信号对接的硬件接口,以及相应的数据采集和指令发送软件。为了解决感知层的复杂性,工业网关厂商将根据各自的目标应用领域,装备感知层信号接口的硬件接口和协议组合。   就地数据库 在一些用于复杂数据处理流程或其他就地业务逻辑处理的场景中,处理后的数据还需要存储在网关本地数据库中。由于工业网关一般属于嵌入式计算设备,所以这类数据库也一般采用嵌入式数据库。嵌入式数据库功能简单,具有内存缓冲,提高了访问速度。   就地的业务逻辑 它主要处理与网关相关的传感器网络部分所连接的设备、传感器和执行器相关的本地系统的业务逻辑。不同网关的本地业务逻辑模块的丰富性和复杂性差异很大。如果工业网关中没有这样的功能模块,它通常被称为数据传输网关、协议转换器或通信管理器。有关就地业务逻辑的详细描述,请参见边缘计算。   数据处理 设备端数据处理主要解决数据不匹配问题。也就是说,服务器所需数据的范围、频率、完整性等等。数据处理的目的是对输入接口中的数据进行排序,将其转换为适合输出的数据形式,并将其推送到输出接口。输入端和输出端可以由设备端或服务器端播放,因此数据流是双向的,并且根据数据类型的不同而不同。   其他功能 除了上面的主要模块之外,网关还常常配置它的功能用户界面,要么使用按钮、命令行(通过Telnet或串口),要么使用图形界面(例如内置的WEB服务器,甚至面板)。如果网关具有适当的业务逻辑,它可能还需要工具来加载脚本文件、配置文件,等等,这些都是本地业务逻辑所需要的。 作为一种远程设备,4G工业网关的自我维护也非常重要。一般情况下,需要利用自己与服务器连接的优势,从服务器上自动下载自己的软件更新包并完成更新。还应通过远程登录完成部分设置和配置工作,以降低外派人员的现场维护成本,提高对用户需求的响应速度。

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Functional composition of 4G industrial gateway The basic function of the 4G industrial gateway is to connect the two heterogeneous networks, which is particularly common in the industrial Internet of things scenario, because the sensor network often USES completely different electrical signals and protocols from the common network layer (long distance transmission network).   4G...

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网关和路由器之间的区别 网关是充当转换代理的计算机系统或设备。网关是两个系统之间的转换器,它们使用不同的通信协议,数据格式或语言,甚至是完全不同的体系结构。与简单传达信息的网桥不同,网关重新打包它们收到的信息以满足预期系统的需要。那么网关和路由器之间的区别是什么? 网关和路由器之间的区别如下: 路由器的作用是连接不同的网络并传输信息。根据用途,可分为:接入,企业级,骨干级,太比特,多WAN和3G无线等。 网关 网关可以是路由器,交换机或PC。对于同一网段内的通信,不必涉及网关。只有当主机和非本地网段设备通信时,才需要将所有数据包发送到网关设备,然后通过网关设备转发或路由它们。 路由器是一个网络层系统。一般来说,市场上的路由器分为两类,一类是单协议路由器,另一类是多协议路由器。路由器可以转换数据格式,成为与协议不同的网络互连的必要设备。 网关与路由的关系可以表示为:网关是网络连接的基础,路由是网络连接的桥梁。 路由器使用静态或动态路由来确定网络之间的最短路径。静态路由需要管理员手动设置,动态路由USES协议以动态发现网络之间的路径并确定最短路径。通常,静态路由用于小型网络,动态路由用于大型复杂网络。 现在,路由器集成了网关功能,因此路由器也具有网关功能。 网关和路由器之间的区别 从网关和路由器的定义来看,如果只连接两个网络,则只需要一个网关。 假设只有两个网络:网络A和网络B. 为了使网络A和网络B能够通信,只使用网关连接两个网络,因为只有两个网络,并且不需要确定网络之间的最短路径。 如果需要连接多个网络,为了确保网络的可靠性,需要将网络结构设计为完整网络或部分网络。通过这种方式,网络之间的通信需要两个设备,网关和路由器。由于当前路由器集成了网关的功能,因此只能使用一个设备路由器。

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What is OpenWrt

Category : 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

Category : 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

Category : 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

Category : 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。

E-Lins New Product H685 WRT Quick Start

Category : 产品文章

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

Step 4) System – Setup Wizard

4.1) General

 1

a) Set the Web Login password;
b) Sync with system time with clicking “Sync with browser”, or select the “Timezon”;
c) Click “Save & Apply” button for next step;

 4.2) Mobile

 2

Item

Description

Enable

Check it

Mobile connection

Normally system will automatically select

APN

Fill in the right parameters. Get this parameter from the Sim Card Provider or Carrier;

PIN number

If the SIM card uses PIN code, please put here. Wrong PIN code makes router no work.
If the SIM card doesn’t use PIN code, please keep blank here.

Dialing number

Fill in the right parameters. Get this parameter from the Sim Card Provider or Carrier. With experience, most of time, 2G/3G/4G use *99#, and CDMA/EVDO use #777.

Authentication method

Fill in the right parameters. Get this parameter from the Sim Card Provider or Carrier;

None

No more settings

CHAP

Need set “Username” and “Password”

PAP

Need set “Username” and “Password”

Service Type

Select the network you want to use. Normally keep default settings

Demand

Normally keep default settings

MTU

Normally keep default settings

Click “Save & Apply” button for next step;

4.3) LAN

 3

Set the router LAN IP parameters. Click “Save & Apply” button for next step;

4.4) WiFi

4

Notes: for security, it is highly recommend to set “Encryption” for the WiFi Radio.

 

Step 5) once the router is online, it gets a WAN IP Address and Status Page will show similar info, also the “Cell LED” will light on. And “Cell Signal LED” flash if there is enough signal.

Level

Signal Strength Value

Cell Signal LED Flashing Speed

1

1-4

Flash per 2 seconds

2

5-17

Flash per 1 second

3

18-31

Flash per 0.5 second

 

5.1) Status – Overview

 5

Step 6) In order to keep the router working stably, it’s highly recommended to activate the “ICMP Check” feature.

       6

Notes:

1) For router working with best stability, we highly suggest activate and use this feature. With this feature, the Router will automatically detect its working status and fix the problem.

2) You can fill in Host1 only, also you can fill in Host1 and Host2 together.

Below list the ICMP checking principle diagram.

 

 7

 

 

Quickstart for H685 series 3G 4G routers

Category : 产品文章

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 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 192.168.8.xxx.

Step 3) At PC IE browser, please type: http://192.168.8.1

Username: admin      Password: admin

Step 4) Internet Settings – WAN – Cell Modem

Notes:

1)       If you don’t replace any cellular module or not do the “Load Default to factory”, please skip this step and jump to Step 5.

2)       Please be patient that the router will take some more time to dialup online for first configuration,

At “Cell Modem”, please select “AUTO_DETECT”, and click “Apply” button. The router will automatically detect the module modem.

Notes: we highly suggest that reboot the router (power off and re-power on) after we select “AUTO_DETECT”.

 1

Step 5) Internet Settings – WAN – APN configuration

 2

Click “Advance Parameter Groups” button.

 3

Fill in the related parameters. And DO NOT FORGET TO CLICK “Add/Edit” button.

Parameters Groups Name: you can fill in the name freely. But keep No Space between characters.

 4

Dialup: fill in the related parameters. Get this parameter from the Sim Card Provider or Carrier;

APN: fill in the related parameters. Get this parameter from the Sim Card Provider or Carrier;

User: fill in the related parameters. Get this parameter from the Sim Card Provider or Carrier.
Notes: If your SIM card has no user name, please input out default value, otherwise the router may not dialup. Our default value for GSM/WCDMA/LTE is “wap”, and for CDMA/EVDO is “card”.

Password: fill in the related parameters. Get this parameter from the Sim Card Provider or Carrier.
Notes: If your SIM card has no user name, please input out default value, otherwise the router may not dialup. Our default value for GSM/WCDMA/LTE is “wap”, and for CDMA/EVDO is “card”.

Step 6) Click “Apply” button or Re-power the router to reboot. Then H685 router will dialup to be online.

Once it’s online, the CELL LED will light on.
Notes: sometimes the router cannot dialup after the APN configuration, please power off the router, and re-power on it. Because some radio modules need reboot after the initial APN configuration.

Step 7) Once H685 router is online, it gets a WAN IP Address and Status Page will show similar info.

 5

Step8) Activate the “Cell ICMP Check” feature

Notes:

1) For router working with best stability, we highly suggest activate and use this feature.

With this feature, the Router will automatically detect its working status and fix the problem.

2) Please disable the “Ping from WAN Filter” if use ICMP check feature, otherwise it cannot work.

 

6

7

 

l         Active: tick it to enable ICMP check feature

l     Check method: fill in checking domain name or IP. Click HOST/IP check button to verify before using it.

l     Check interval time (sec): set the interval time of every check

l     Check Count: set the checking count number

l     Reboot Count Before Sleep: H685 Router will sleep to stop checking after failed with set times.

l     Sleep Time (min): H685 Router sleep timing before resume check.

 

Example with above picture:

H685 Router check “www.google.com” and “112.134.33.8”, it will check 3 times. After the previous check, it will do next check after 60 seconds. Totally it will check 3 times. If 3 times all failed, H685 Router will reboot. If reboots 3 times continuously, H685 Router goes to sleep to stop checking. The sleep time is 5 minutes. After 5 minutes, H685 Router resumes to cycle the checking.