Wangshiwu
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5G networks will offer an unprecedented leap in bandwidth speeds in comparison to previous mobile networks. It will also offer reduced latency and improve overall network efficiency. Streamlining network architectures will deliver end-to-end latency requirements of less than 5 ms. This will allow 5G to offer ultra-reliable low-latency communication for machine-to-machine and public safety applications.
With end-to-end digital service transformation it will minimize OPEX, deliver efficiencies, and drive revenue growth. For 5G to deliver an attractive business model to mobile network operators and their customers, the network must enable efficient provisioning of a wide variety of new services for varied customers with different service level needs and performance requirements. Breakthroughs in wireless network innovation will also drive economic and societal growth in entirely new ways. The development of 5G technologies is a cornerstone for realizing breakthroughs in the transformation of ICT network infrastructure. Ultra-broadband and intelligent-pipe network features that achieve near-instantaneous, "zero distance" connectivity between people and connected machines--no matter where they are--are just the first step. 5G will herald an even greater rise in the prominence of mobile access for realizing total ICT network growth and expansion. Over time, any mobile app and any mobile service will be given the potential to connect to anything at any time--from people and communities to physical things, processes, content, working knowledge, timely pertinent information and goods of all sorts in entirely flexible, reliable and secure ways. 5G technologies will need to be capable of delivering fiber-like 10 gbps speeds to make possible ultra-high definition visual communications and immersive multimedia interactions. These technologies will depend on ultra-wide bandwidth with sub-millisecond latencies. 5G wireless networks will support 1,000-fold gains in capacity, connections for at least 100 billion devices, and a 10 Gbps individual user experience capable of extremely low latency and response times. Deployment of these networks will emerge between 2020 and 2030. 5G radio access will be built upon both new radio access technologies (RAT) and evolved existing wireless technologies (LTE, HSPA, GSM and WiFi). Breakthroughs in wireless network innovation will also drive economic and societal growth in entirely new ways. 5G will realize networks capable of providing zero-distance connectivity between people and connected machines. 5G will provide the foundational infrastructure for building smart cities, which will push mobile network performance and capability requirements to their extremes. Low latency and extremely high reliability, however, will also be essential requirements for the likes of mobile industrial automation, vehicular connectivity, and other IoT applications. Connectivity + Computing + Cloud is becoming the main engine of mobile industry growth where ubiquitous connectivity with super-fast speed, IoT applications, AI, Intelligent Computing, chip-device-cloud synergy for intelligent experience, Smart Manufacturing, e-services and cloud will be the key enablers in near future. 5G will Bring MBB (Mobile Broadband) to a whole new level and serve for digital transformation. The three main requirements for establishing 5G will be eMBB (Enhanced Mobile Broadband), uRLLC (Ultra Reliable Low Latency Communication) and mMTC (Massive Machine Type Communications). eMBB will ensure 100 Mbps user experienced data rate and 20 Gbps peak data rate which is 100 times faster than current 4G. eMBB will increase the spectrum efficiency by three-fold. uRLLC will be a must for ensuring IoT, because everything from personal gadgets to home appliances to industry machines and all types of vehicles will be intricately connected with everything. Such a huge connection will need very low latency around 1 millisecond or even less. Here, huge data will not be necessary but low latency will be a must as the devices will have to follow the users' commands within milliseconds. For example, if a smart car misses a signal for a perfect U-turn, a deadly accident can occur resulting in loss of lives. uRLLC will ensure 0.5ms latency within an area of at least 500 km. That's really amazing. However, the mMTC will be needed for ensuring connectivity among a very big density of users in an area. To be precise, mMTC will provide 1 million connection per kilometer. All these technologies will give us 100 times more energy efficient operation in 5G. So, 5G will be the entrance of the digital world with All Things Connected. 5G will bring enormous new opportunities. It will also ensure different tariff models for users and connect everything. Cloud X will be another frontier to ensure next level user experience, which will unleash new business potentials and create more apps and devices to make everything wireless and convenient. Things were PC native in 2G and 3G, where connections and services are Mobile natives in 4G. But in 5G, everything is going to be Cloud native. For instance, a gamer fond of playing high-end games will no longer need a high-end smartphone to access his desired game. Just a simple smartphone will be enough to play the super powerful games through Could X. Because there will be cloud PC which will actually function in the cloud and the smartphone will only act as a joystick or monitor or controller remotely. Such distant operation will need very fast internet of at least 100 Mbps which will be ensured by 5G. We have already seen such applications in South Korea. Vertical Industries are going through a new wave of generational transformation driven by multiple factors including societal changes, economic challenges and ageing of populations. In the next decade, many industries are evolving towards distributed production, connected goods, low energy processes, increasing automation, collaborative robots, integrated manufacturing and logistics. The major incentives abetting this transformation are the potential to reap cost advantages and improve efficiencies by leveraging and integrating the latest advancements in the cellular, electronic, computing and manufacturing industries. For example, by 2020, autonomous and cooperative vehicles with enhanced safety and security standards are expected to be adopted in the US, Japan and Europe. 5G is developing faster than we ever imagined and the ecosystem is maturing in 2019. eMBB has already been established. uRLLC and mMTC are coming soon and we have already seen massive improvement. More than 100 operators will launch commercial 5G network in between 2019 and 2020. Operators all over the world are getting prepared to roll out 5G. But for that, they need to have a 100MHz spectrum constantly. Already in China and the US, the operators are using 2.6 GHz, 3.5 GHz bands. So seemingly, these bands among 2 to 5 GHz range are going to become a trend. In Bangladesh also, it will be wiser to take preparation for 2300MHz or 2600MHz band, and C-Band (3.5G Range) as ecosystem matures, especially the 5G terminals which will be ready first at those range. Ensuring the spectrum will be the first challenge for 5G enrollment as the spectrum needed for stable throughput will be much more than the current network in Bangladesh. We believe, the government, as well as BTRC, will closely collaborate in this regards. And Huawei is ready to provide all necessary equipment to help Bangladesh step into the 5G era. The writer is Chief Technical Officer, Huawei Technologies Bangladesh Ltd |
Teletech
Online version of Journal of BCS (Bangladesh Civil Service) Telecom Samity. All members of this association are employee of govt. own company called BTCL (Bangladesh Telecommunications Company Limited, Former BTTB).
Monday, June 10, 2019
Standardization of 5G
Sunday, May 19, 2019
5G in Bangladesh
Bridging the Standardization Gap
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* Director & Head, Network Planning & Deployment, Grameenphone Ltd.
Thursday, May 21, 2015
An Overview of the Products, Services and Business potentials of the Submarine Cable in Bangladesh
Md. Monwar Hossain Parvez M. Ashraf
- Bandwidth service for different routes and different
levels such as STM-1, STM-4, STM-16 to the International Internet Gateway
(IIG) companies through International Private Leased Circuits (IPLC).
- Bandwidth service for different routes and different
levels such as STM-1, STM-4, STM-16 to the International (Voice) Gateway
(IGW) companies.
- IP Transit Services to IIG companies
- IPLC services to any Corporate Customers as per the
approval of telecommunications regulatory body of Bangladesh.
- IIG (International Internet Gateway) which should help the people to get broadband Internet with cheaper rate and better quality of service.
- IPLC
(International Private Leased Circuit) for IIG
- IPLC
(International Private Leased Circuit) for IGW
- IPLC
(International Private Leased Circuit) with IP Transit for IIG
- IIG
(International Internet Gateway) Services for ISP
- Dedicated
Leased Circuits for Corporate Clients
(iii) Bangladesh as a country would enjoy the total benefit of redundancy of the circuits & also the multiple destinations for SMW-5.
- Alcatel: www.alcatel-lucent.com/submarine/
- NEC: http://www.nec.com/en/global/prod/nw/submarine/index.html
- Optical Internetworking Forum: http://www.oiforum.com/
- Telegeography: www.telegeography.com
- Suboptic Forum: www.suboptic.org
- Infinera: www.infinera.com
- Optical Fiber Telecommunications part V- vol. B
(Systems and Networks) edited
by I. P. Kaminow,T. Li & A. E. Willner
- Performance of Dual-Polarization QPSK for Optical
Transport Systems
by K. Roberts, M. O’Sullivan, K. T. Wu, H. Sun, A. Awadalla, D. J. Krause,
& C. Laperle
- Latest Technology of Optical Transmission System
(40G/100G Solutions) Deployed in SMW-4 Submarine Cable Upgrade and the
Bandwidth Situation in Bangladesh by Md. Monwar Hossain & Parvez M. Ashraf
(published in Teletech 2011)
- Dense Wavelength Division Multiplexing (100 G
Solution) adopted in SMW-5 Submarine Cable System - What is in the
Laboratory for Higher Bandwidth Solution? by Md. Monwar Hossain &
Parvez M. Ashraf (published in Teletech 2012)
- Use of Advanced Optical Transmission Technologies
for Redundancy in the Submarine Cable Systems of Bangladesh by Md. Monwar Hossain &
Parvez M. Ashraf (published in Teletech 2013)
- Joining Bangladesh with the Second Submarine Cable
(SEA-ME-WE-5) by
Md. Monwar Hossain & Parvez M. Ashraf (published in Teletech 2014)
- Acknowledgment: Mr. Md. Zakirul Alam,
DGM (Development), BSCCL for Information & diagrams on SMW-5
Project & Mr. Abdul Wahhab, DGM (IIG), BSCCL for the Information &
diagrams on IIG and IP Transit Setups.
Md. Monwar Hossain: Managing Director, BSCCL
Friday, May 15, 2015
BTCL striving for excellence.
Md. Aminul Hassan
GM, Transmission, BTCL.
Dial Up
Dialup is simply the application of the Public Switched Telephone Network (PSTN) to carry data on behalf of the end user. Dial up networking technology provides PCs and other network devices access to a LAN or WAN via standard telephone lines. It involves a customer premises equipment (CPE) device sending the telephone switch a phone number to direct a connection to.
A dial-up connection can be initiated manually or automatically by personal computer's modem or other device. BTCL offers subscription plans for home computer users.
Types of dial up services include V.34 and V.90 modem as well as ISDN. Dial up systems utilize special-purpose network protocols like Point-to-Point Protocol (PPP).
The performance of dial up networking is relatively poor due to the limitations of traditional modem technology. V.90 modem dial up supports less than 56 Kbps Bandwidth and ISDN handles approximately 128Kbps. Many home users are currently replacing their dial up services with high-speed broadband technologies that operate at much higher speeds
ISDN
ISDN is the abbreviation of integrated services digital network. It is international standard for sending Voice and Data over digital telephone on normal telephone wire.
There are two types of ISDN:
· Basic Rate Interface (BRI) -- consists of two 64-Kbps B-channel s and one D-channel for transmitting control information.
· Primary Rate Interface (PRI) -- consists of or 30 B-channels and one D-channel. The co-axial cable can be used in this case. Normally use E1 connectivity.
In both the services end-user can transfer voice and data (e.g. Video Conferencing) at end-to-end level. The protocol in the core is ISDN user part (ISUP) and DSS1 (Q.931) in the terminal side. The data packet can be transparently passed between/among the end users.
BTTB started the ISDN service both in Basic rate and primary rate. The service first inaugurated in May 2003 by the then Honorable Prime minister. Commercial service of Basic rate was started in Sept 2006 by providing service to GrameenPhone and Primary rate started in April 2009 to ADN. The vendor for the service was Nortel Netas at the beginning but now other vendor like Huawei also come up by providing PRI service.
Currently BTCL providing PRI services more than 30 different organizations including US, Canada, Sweden embassy.
ADSL
Data was introduced in 2006, Telephone companies backed xDSL technology to provide next generation high bandwidth services to the home and business using the existing telephone cooper cabling infrastructure. xDSL Refers collectively to all types of digital subscriber lines, in which the two main categories: the Asymmetric DSL (ADSL) and the symmetric DSL (SDSL).
xDSL to the home over existing phone lines promises bandwidths up to theoretically 8.448 megabits per second and more, but distance limitations and line quality conditions can reduce the data rate. xDSL technologies uses a greater range of frequencies over the telephone cable than the traditional telephone services have used. This in turn allows for greater bandwidth with which to send and receive information, enabling for example continuous transmission of motion video, audio, and even 3-D effects.
xDSL utilizes more
GPON :
At present BTCL is providing its end user with voice service as well as ADSL based internet service over its traditional copper wired network all over Bangladesh. As ADSL has huge limitations in terms of no. connections and data speed capacity, BTCL is introducing a latest technology, GPON in its network. GPON stands for Gigabit Passive Optical Networks. These short-haul network ( max. 20 km) of fiber-optical cable supports triple-play services of Internet access, voice over Internet protocol (VoIP), and digital TV delivery simultaneously. It can deliver 2.488 Gbits/s downstream and 1.244 Gbits/s upstream.
GPON cuts floor space and electricity usages in office building by as much as 95% compared to traditional copper networks, leading to the claim that GPON is a green technology.
GPON network is being laid down by BTCL through its two projects, RODTS (171KL) and TNDP. Already GPON/Triple play services are being used by the subscribers of Mirpur DOHS. RODTS(171KL) will install GPON network of 37,700 connections in Dhaka and TNDP will install a network of 1,01,940 connections in Dhaka and Chittagong metropolitan cities.
structure where network antenna or communication equipment placed.
LTE
LTE stands for Long Term Evolution.LTE provides high speed data connectivity through wireless media. Its optimal speed is 27.8 Mbps downlink. It’s a 4G technology which is ready to mitigate digital divide and reach the unreachable. To fulfill the digital Bangladesh goal of present Government BTCL has taken “Installation Wireless Broadband Network for Digital Bangladesh” project. The main components of this project are installation of core network at two different places in Dhaka, Installation of 670 at different District, Upazillas throughout the country including 7(Seven) Divisional Headquarters. Total cost of the project is 95684.24 Lac Taka in which Project aid from EDCF Korea is 61215.00 Lac taka(near about 65% of total cost) and GoB (F.E.) is 34469.24 Lac Taka. Project duration is from May 2014 to June 2017.