Showing posts with label Vendor ZTE. Show all posts
Showing posts with label Vendor ZTE. Show all posts

Friday, 15 April 2022

ZTE Shows-off New 5G Products and Solutions at MWC 2022

Like all other big vendors, ZTE's booth at MWC 2022 was closed for visitors. They did however create a video explaining all their new products and solutions launched at MWC. Here is a summary from their press release:

ZTE's UniSite NEO, among the new solutions, is the industry’s simplest site solution. Powered by the integrated radio unit OmniUBR Series, it is capable of reducing the radio units from 18 to 5, and supporting a 6-band 3-sector site with only 5 units, thus significantly decreasing site rental cost by up to 57% and delivering 40% lower power consumption. 

Also, ZTE has updated its 5G RAN portfolio with the new-generation Massive MIMO product series. It includes 32TR and 64TR AAUs, up to 192 antenna elements and 320 watt, and introducing the industry's lightest Massive MIMO product weighing 9kg for high traffic site with limited space. ZTE's full scenario product portfolio update wraps up the radio network enhancement and improves the ROI for its operators.

At MWC 2022, ZTE presents an all-in-one 5G private network solution based on the new model of 5G network as a service. This is a one-stop order-to-service package with the pre-integrated software and hardware, as well as converged 4G and 5G networks. The package has the tailor-made network features to empower the digital society. 

ZTE introduces three major types of 5G private network, including the compact cabinet for smart factories with dozens of enterprise applications to be launched on the cloud, single server i5GC for comprehensive campus where applications are more diversified and data security and self-service are mandatory, and embedded MEC for a very limited equipment room and simple application scenarios.

In additon, ZTE has launched VMAX, the accelerator of digital transformation at MWC 2022, to satisfy the increasing complexity of the network O&M, which is regarded as one of the biggest issues for operators.ZTE's VMAX can help improve customer experiences, reduce costs and enhance operating performance.

VMAX is a part of uSmartNet, ZTE's Autonomous Network solution, and changes single-domain operation into all-domain and end-to-end perspective providing One-stop Insight. When network errors occur, VMAX supports cross-domain service self-healing. It gets to the root cause of service problem and customer complaint in minutes with more than 80% location accuracy and efficiency increase by 30%. 

In addition, VMAX can interpret the service intent, output network planning suggestion accurately with minimal intervention. Meanwhile, it provides end-to-end security for different scenarios to protect personal privacy.

Here is the video of their products and solutions

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Wednesday, 21 July 2021

ZTE explains 5G CDN in a new White Paper

ZTE recently released a new whitepaper analyzing in detail the challenges confronted by content delivery network (CDN) in the 5G era. it also proposes architecture and technology trends suitable for the evolution of CDN to content edge clouds. Finally, the WP shares deployment cases of actual applications.

The announcement states:

With 5G entering into an era where video "reigns supreme", the video demand of individual users continues to rise, and that of businesses has also shown explosive growth in the context of the pandemic, such as interactive live broadcasting, online education, and cloud gaming. Immersive experiences including high-definition channels, VR/AR and 8K+ ultra-high-definition services have witnessed rapid development. Enterprise users are accelerating their digital transformation, and video digital applications like video conferencing, video surveillance, live broadcast of venues and telemedicine are becoming increasingly popular. Various video services require the networks to have stronger distribution timeliness, lower service delay and greater bandwidth.

Based on a lightweight vCDN, ZTE's 5G CDN solution provides nearby access, automatic scaling and rapid deployment while realizing resource sharing and reducing backbone network traffic. Relying on the cloud platform, the solution enhances the video processing capabilities with the cloud transcoding function. It also enriches the video PaaS capability components, providing a foundation for the opening of platform capabilities.

With security being as fundamental guarantee, the 5G CDN solution constructs a dynamic security protection system with infrastructure security, content security, service security and data security as the core to ensure the efficient and safe operation of CDN.

ZTE has utilized the 5G CDN solution in various industries including entertainment, culture, education, games, sports and more. In the entertainment field, ZTE and China Mobile have completed the trial commercial use of 5G MEC-based 8K VR services, bringing users a brand-new immersive audio-visual experience. 

In the education field, through the integration of interactive live broadcast, business management and other video platform capabilities, ZTE has created for customers the Online education SaaS business featuring multiple teaching scenarios and terminals under the condition of different types and multiple networks, while employing ZTE Wi-Fi6 routers, smart education set-top boxes, smart screen speakers, 5G mobile phones and other terminals to carry the online education services. 

In the gaming field, ZTE 5G CDN provides efficient and secure transmission guarantee for cloud gaming services, and it has been commercialized in China Telecom’s networks. In the field of cultural tourism, relying on its powerful media processing capabilities, ZTE’s 5G CDN is able to help present high-definition live content of scenic spots, thereby allowing China Mobile's customers to enjoy the scenic spots in Shaanxi on the cloud. 

In the sports industry, by virtue of the powerful rendering and distribution capabilities, with 5G CDN, ZTE and China Unicom have jointly realized free viewpoint 4K live broadcast service featuring the industry's lowest latency in the "Meeting Beijing" ice event speed skating test competition in April 2021. The measured end-to-end delay is as low as 0.3 seconds, delivering the ultimate smart game watching experience to the audience.

As one of the largest CDN network solution providers, ZTE, backed up with its profound accumulation of ultra-high-definition video technology and 5G communication technology, will keep focusing on customer demand, innovative technologies and optimizing experience, so as to provide a better video service experience and assist operators in laying out 5G vertical industry applications.

The whitepaper is available here.

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Thursday, 10 December 2020

ZTE's PAD and iMacro gets 5G Upgrade

ZTE announced the Pad base stations back in 2015. From the press release:

The Pad series base stations use a distributed architecture to provide flexible networking models, meeting multi-point and multi-sector coverage requirements. The Pad baseband unit (BBU) is only one third the size of similar products making it the world's smallest outdoor BBU, and can be installed in a concealed location.

The Pad series also features a newly released remote radio unit (RRU), The Pad RRU is a similar size to a tablet, has built-in antennas, and can be mounted to poles, walls, or other common locations in stations, buildings, and streets, allowing for easy site selection for intensive coverage. With low transmit power and interference, the Pad RRU provides seamless network coverage through macro-micro coordination. Multiple Pad RRUs can be included in a logical cell to reduce handovers and provide better user experience.

Earlier this year, ZTE announced in another press release:

ZTE and the Hangzhou branch of China Telecom have deployed the industry’s first 4G/5G dual-band micro RRU supporting 3.5 GHz frequency band in Hangzhou, China. With the downlink rate reaching 1.1Gbps, it can provide users with excellent 4G/5G network experiences.

Featuring 2.1GHz LTE anchors, the latest 4G/5G dual-band 4T4R products of ZTE’s 5G Pad RRU series can realize the fast NSA network commissioning, guaranteeing the service experience of 4G/5G coverage in a 5G SA network. Moreover, it supports 3G/4G/5G multi-mode, and 200 MHz continuous ultra-large bandwidth on 3.5 GHz frequency band. 

In addition, the 4G/5G dual-band micro RRU is small in size, light in weight,  and quick to deploy, thus effectively solving the challenge of insufficient site resources and realizing fast 5G signal coverage extension. 

The pad RRU is usually installed on smart light poles, which integrate HD camera, environmental monitoring, weather sensor, screen, and new-energy vehicle charging functions. Therefore, smart light poles can monitor the real-time road conditions, such as flood, to avoid potential hazards.  

Moreover, the smart light poles can be used as a site location for 5G micro RRUs to solve the problem of insufficient coverage, and transfer live information of smart light poles in real time.

iMacro base station was launched in 2015 as well. From the press release:

The new iMacro base station, with integrated RFUs (radio frequency unit) and antennas of compactness and high performance, was debuted at the Mobile World Congress Shanghai 2015 conference in Shanghai. iMacro joins other products of the ZTE multi-scenario coverage product family, including the Pad series outdoor base stations and Qcell indoor coverage solutions, helping operators to build high-quality 4G networks.

Due to a large number of pedestrian streets, commercial streets, residential areas, and other densely-populated areas alongside urban streets, it is difficult to build new sites, leading to increasingly prominent problems of urban street coverage. Integrated RF unit and antenna unit, ultra broadband power amplification, together with its small size, light weight, compact design, and even one device is capable of multiple frequency bands, ZTE iMacro base station is what exactly operators desire. Moreover, iMacro base station is featured with flexible and rapid deployment without any site resources, which effectively makes the deployment alongside urban streets easier.

The iMacro base station, which can be pole-mounted or wall-mounted, is suitable for installation on lampposts along urban roads and bus station awnings, and can even be placed on the lamp poles along the roads or building’s façade. In the absence of new site resources, the iMacro base station provides intensive coverage in densely-populated areas, effectively enhancing the quality and capacity of network coverage. In addition, the iMacro base station with a compact and elegant appearance can perfectly blend in with the surrounding environment.

In addition to the technology innovation, ZTE also concerns the friendliness and convenience of network deployment. iMacro can connected to external devices through a single power cable and an optical fiber that is connected to the BBU, and multiple iMacro base stations are connected to one remote BBU, allowing for flexible and rapid network deployment, and significantly reducing deployment costs.

Anyway, here is a recent video on PAD and iMacro that ZTE shared on their YouTube channel

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Tuesday, 30 June 2020

QCell - ZTE’s 5G Solution for Gigabit Indoor User Experience

ZTE unveiled its 5G RAN product portfolio for the 'Networks of the Future' back in February, just in time for the MWC that was unfortunately cancelled. One of the products was QCell.

ZTE’s QCell 5G indoor solution provides not only multi-mode, multi-frequency, ultrawide-bandwidth and large-capacity 4TR products, but also a more budget-friendly 2TR product that supports 300 MHz bandwidth, which is ideal for indoor RAN sharing and rapid introduction of 5G with lower deployment cost.

Yesterday, ZTE announced that along with the Jiangsu branch of China Telecom, they have deployed 5G 200 MHz Qcell 4T4R digital indoor distribution system in the indoor scenarios with high amounts of data traffic, such as shopping malls and subway stations, in Xuzhou, China. The system provides high-quality 5G indoor coverage, and accelerates future 5G indoor system deployment.


This commercial deployment has employed ZTE’s latest 5G Qcell ultra-wideband product series, which supports 200MHz continuous ultra-large bandwidth at 3.5 GHz frequency band, and 100MHz+100MHZ dual-carrier aggregation technology that doubles download rate. 

 For the time being, by virtue of China Telecom’s 100MHz 5G bandwidth, the single 5G user download rate has turned out to exceed 1 Gbps. In case of the activation of 200 MHz bandwidth in the future, the single 5G user download rate will exceed 2 Gbps, providing an excellent 5G experience. 

 Moving forward, ZTE will give full play to its technical and commercial advantages in the 5G field, continue to work closely with China Telecom to build high-quality 5G digital indoor networks, and develop 5G industrial applications, thereby facilitating the development of smart cities.

A partner feature on Mobile World Live provides a lot more technical details:

The ZTE QCell system consists of pRRU/pBridge/BBU (Baseband Unit) 3-level equipment. The 3-level efficient architecture supports the rapid cabling of CAT6a network cables or optical-electrical hybrid cables. It supports pBridge multi-level cascading, cell splitting and combination, and can rapidly respond to the operator’s requirements for the complex networking of different frequency bands and systems, rapid adjustment and flexible expansion of capacity and coverage.

 The 300 MHz large bandwidth products with multi-mode and multi-frequency band enable the ZTE QCell solution the powerful network architecture integration capability, to meet the requirements of multi-operator’s co-building and sharing and have the compatibility and adaptability of global deployment. It not only supports the overlay networking of the existing DAS and 5G QCell, but also supports the feed-in of the GSM/UMTS DAS RF signals from different manufacturers in the existing network through the MAU, to protect the operator’s existing indoor distribution investment and introduce value-added services based on 5G coverage and precise positioning. QCell supports GSM/CDMA/UMTS/FDD LTE/TDD LTE/5G NR, which makes once deployment to implement the multi-operator/multi-band/multi-system indoor distribution system that achieves agile, long-term, co-construction, sharing, and lowest cost indoor distribution network, multi-system equipment and common management and maintenance. It only needs software upgrade for service expansion and network architecture evolution in the future so as to protect the investment in early-stage 5G indoor deployment and reduce the overall TCO cost from the perspective of long-term operation.

 ZTE adopts innovative design of QCell products to reduce the cost and power consumption of equipment units. The pRRU transceiving channel not only supports high-performance 4T4R, but also supports low-cost 2T2R, further reducing the cost and power consumption. The pBridge enhanced product is designed to reduce the cost and power consumption after the electrical interface and optical interface are separated and the SoC solution is introduced. Moreover, the simplest BBU product is introduced to further reduce the QCell system networking cost.

 The hierarchical QCell networking well matches diverse scenarios

 Based on the analysis of the requirements for indoor distribution of operators, vertical industry enterprises, and large business owners, the indoor distribution scenarios can be divided into three types: capacity-sensitive scenario (type A), capacity and coverage balancing scenario (type B), and coverage-sensitive scenario (type C).

 For the above three types of scenarios, ZTE provides hierarchical QCell networking solutions. Compared with the Benchmark QCell solution of 4T4R built-in antenna pRRU, ZTE provides a cost reduction solution of 2T2R built-in antenna pRRU and a low cost solution of 4T4R pRRU+ connected with external DAS antenna according to the scenario requirements, thus achieving the accurate network construction and saving operators’ investment. Evaluations based on the 40,000 square meters isolated indoor distribution scenario show: for scenario type B, the total main equipment investment is reduced by about 1/4; for scenario type C, through the external DAS antenna, the single-pRRU coverage area is greatly expanded and the overall investment is greatly reduced by about 1/2.

 Extensive QCell Digital Smart Indoor Application, Making 5G Service Ubiquitous

 The QCell digital intelligent indoor distribution system can be deployed for indoor and semi-indoor to achieve wireless coverage and service provision in high-value areas, such as large traffic hub, large stadiums, CBD and university campuses.

 The large-scale traffic hub scenarios, such as airports, railway stations, and subway stations, have a large area and high population density, and are high-value areas for operators to guarantee both coverage and performance. The Wi-Fi system of most transportation hubs is often limited in capacity and cannot meet passengers’ requirements for future 4K/8K HD video. In Changsha Huanghua Airport, ZTE deployed the indoor high-capacity digital intelligent QCell solution with high-density networking and the first 3-carrier aggregation technology in China, to achieve the throughput of 8400Mbps for the airport. The solution supports 3,500 people simultaneously to enjoy HD video smoothly. At present, the QCell solution has been widely used in various metropolitan airports and railway hub stations, including Changsha Airport in Hunan, Xiaoshan Airport in Hangzhou, Nanjing South Station and Xining Railway Station, serving millions of passengers. Nanjing South Railway Station has a total building area of 45.8 million square meters, which is the largest railway station in Asia. After QCell is deployed, the SINR is increased by 13% and the throughput is increased by 91.8%.

 The large stadiums, such as stadiums and exhibition halls, have a large number of users and a huge amount of data volume in a centralized manner. The QCell solution supports vertical partitioning to achieve seamless multi-layer coverage from the upper stands, the middle mezzanines to the bottom passages. At present, the QCell solution has been widely deployed in large stadiums such as Hangzhou Olympic Center, Hangzhou Expo Center, Suzhou International Expo Center, and Shenzhen New High-Tech Center. In August 2019, the ZTE 5G Smart Digital Indoor Division QCell solution covered many important sports venues including the Main Conference venue of the Red Lantern Stadium for the second National Youth Games (Shanxi), and made the Game the first “5G Games” in China. Through such technologies as MEC deployment and low delay coding, the ZTE 5G Smart stadium solution reduces the end-to-end live broadcast delay to 1 second, and provides audience with the excellent experience comparable to watching on the spot. In addition, ZTE also provides audience with brand-new experience in three 5G scenarios: immersive viewing experience from multi-angle live streaming, “Flexible Zooming” and “360-degree Free View” services. As an iconic application in the Game, the 5G Smart Stadium Solution provided an excellent demonstration for the live broadcast of sports events.

A recent promo video of QCell is embedded below:




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Tuesday, 16 June 2020

ZTE 'Unisite+' helps accelerate co-site deployment of 2G, 3G, 4G and 5G with fewer devices

One of the things ZTE had planned to show during MWC 2020 is a more 'Capable', 'Compact' and 'Faster' 5G RAN Product Portfolio for the Networks of the Future. While we missed out on that, here is once such product called 'Unisite+'

Pic source: Mobile World Live

ZTE describes this as:

Driven by the idea of maximizing RATs, bands and capacity with as few devices as possible, ZTE has launched UniSite+, the upgraded version of its UniSite solution. The A + P design enables replacing all the antennas and adding a new 5G AAU all by just one single radio unit. The active part of the solution offers flexible options between 64TR and 32TR over N78, N41, and N79 bands, and the passive part offers 14 ports and supports all sub-3GHz frequency bands. 

 The solution employs two tri-band UBR (Ultra Broadband Radio) products, the industry’s first 1.8G+2.1G+2.6G product, and the 700M+800M+900M with the industry’s largest capacity and smallest form factor. 

 By deploying the UniSite+ solution, the operators can easily realize "1 + 2 = 7," the concept of using one antenna and two radio units to support 7-band all-RAT deployment. Therefore, it is the simplest site solution in the industry which reduces the number of required devices by more than 70%.

 In addition to radio simplification, the latest baseband technology is also now at another superb level. ZTE has launched the industry's first all-RAT baseband board, which supports 2G, 3G, 4G and 5G in one board to facilitate “site-intervention-free” for 5G evolution.

 While the radio sites get greatly simplified, ZTE has also reduced the power consumption of the equipment by 30% with new-generation chipsets and high-efficiency power amplifiers. 

 To meet the requirements of 5G transmission, the UniSite+ solution also includes the latest microwave products with a transmission capacity up to 25 Gbps and improved latency performance. In addition, the solution can work with the ordinary frequency band microwave of a 3rd-party solution to form a Multiband group, thereby providing the best MPLS/SDN network upgrade solution to maximize the return on investment of operators.

Here are couple of videos in the playlist, one recent one about Unisite+ and the other is about Unisite from last year that provides background to this.



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Wednesday, 2 October 2019

4G LTE Man In The Middle Attacks With A Hacked Small Cells


Here is an interesting talk from recent HITBSecConf by Xiaodong Zou. HITBSecConf or the Hack In The Box Security Conference is an annual must attend event in the calendars of security researchers and professionals around the world. Held annually in Kuala Lumpur, Malaysia and Amsterdam in The Netherlands, HITBSecConf is a platform for the discussion and dissemination of next generation computer security issues.

From the talk narrative:

Femtocells offer a user the ability to have a small base station located within their house or other area. These small base stations provide access to the core telecom network where poor reception from an eNodeB would normally prevent consistent coverage. Femtocells has been standardized in LTE since release 8, and is referred as Home eNodeB, or HeNB. HeNBs are mandated to have an IPsec connection back to a security gateway (SeGW) to protect traffic flowing into and out of a Mobile Network Operator (MNO)’s core network.

If the HeNB is within the physical possession of an attacker, this provides unlimited time to identify a flaw on the HeNB. A compromised HeNB can be used in a manner similar to a rogue base station, but will also provide the attacker access to clear text traffic before it is sent back to the core network. There are more than ten different types of HeNBs deployed in China. Ericsson ENC-nRBS01B40 is one of them – a TD-LTE base station working on band B40.

In this talk, we will cover:

1.) How to root a 4G LTE femtocell.
2.) How to make the femtocell portable.
3.) How to perform man-in-the-middle attack with the femtocell.
4.) Show the prototype of Hacking Box of S1 Interface (HBoS)

Slides and video embedded below:






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Saturday, 13 April 2019

China Telecom's PON based Small Cells backhaul to reduce CapEX and OpEX


GSMA has a network economics case study from China Telecom on their future networks website. This case study focuses on the challenges of CapEX and OpEX of small cell backhaul. For coverage and/or capacity enhancement purpose, small cells will be deployed widely in the future. As the number of small cells deployed increases, larger bandwidth and higher flexibility are required for the backhaul transportation, which consequentially leads to higher CapEX and OpEX. Therefore an economic and practical approach has to be put forwarded and verified.

China Telecommunications (CT) is one of the largest state-owned telecommunication companies in China. With the world’s largest broadband Internet network, Frequency Division Duplex – Long Term Evolution (FDD – LTE) mobile network, China Telecom is capable of providing cross-region, fully integrated information services to global customers through its sound customer service channel system.

In this case study, CT proposes a small cell backhaul based on Passive Optical Network (PON) system, which can reduce at least 80% of the trunk fibre and 50% of associated fibre. As a result making facility room and air-conditioning unnecessary. Therefore the CapEX and OpEx of small cell deployment could be reduced effectively and remarkably.

As networks evolve through 4.5G to 5G with more complexity, network densification and intelligence at the edge, the need will be even greater to optimise transport network architecture within mobile Radio Access Network (RAN) to resolve the challenges of backhaul/fronthaul demand and the corresponding increase in costs (CapEX and OpEX).

Key highlights of the case study:
  • Small cell backhaul based on Passive Optical Network (PON) system is proposed, which can reduce at least 80% of the trunk fibre and 50% of associated fibre and facility room and airconditioner are no longer required.
  • China Telecom has conducted laboratory and field test in Hubei City and Shanghai with Huawei and ZTE. The test results proved the feasibility with equipment and performance KPI’s satisfied.
  • Backhaul based PON could be one of the preferred choices for small cell backhaul transport. 
CT selected seven outdoor sites and one indoor site in Hubei, and eight outdoor sites in Shanghai. All the small cells were linked to EPON (Ethernet Passive Optical Network) equipment, which had been updated (software and hardware) to support frequency and time synchronisation. Detailed information about CBUs (Cellular Backhaul Units) and small cells in CT laboratory can be seen in the picture above and more details are provided in the case study.

The case study is available here.


Chengliang Zhang, Vice President of China Telecom Beijing Research Institute, China talked about "Optical Networking in the Cloud and 5G Era" which is embedded below.


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Saturday, 26 August 2017

ZTE's 4G / 5G Street Lights


While we are on the subject of street lights and lamp posts, I thought it may be worth mentioning about ZTE's BluePillar Streetlamp solution that it announced back in 2016:

An integrated streetlamp, charging pillar, base transceiver station (BTS) and smart city information solution, BluePillar enables a traditional streetlamp pillar to double as a 4G/5G BTS, or a charging point for electric vehicles. The solution can also collect local data on weather, environment, transportation and security while its large outdoor LED screen can be used to display information and advertising.

The BluePillar solution consists of ZTE’s BlueBox charging pillar, 4G iMacro base station, intelligent controller and intelligent streetlamp, all fully integrated into one product. It makes full use of a streetlamp pillar and integrates seamlessly into the surrounding environment, which could not only solve the difficulty in siting 4G networks, but also assure Wi-Fi construction, environment monitoring, security management and data collection in hotspots. It also offers direct outdoor advertising opportunities, as well as the display of municipal information and other value-added services at the same time. This solution could reduce the unit cost and promote the business density of each site, which could help operators acquire sites whilst saving land, electricity and other resources. Local governments, operators, everyday citizens and electric car owners all stand to benefit from this solution. For example operators could expand their business scope, and make the transition from traditional telecoms operation to the comprehensive operation of data services in cities.

The innovative integration of the solution, including the BTS, streetlamp and charging pillar, coupled with its ability to charge electric vehicles makes this a convenient solution for telecoms tower companies. ZTE's BluePillar solution could solve the challenges of Internet access on roads and in communities, as well as making streetlamps intelligently connected via information exchanged through its BTS.

Additionally:

Besides street lighting ZTE BluePillar is an integrated part of smart city. The system supports security surveillance, real-time information collection on the environment, real-time monitoring of the assets/special crowd with RFID .Through the LCD, important information and advertisement can be displayed which will bring benefit to the citizens as well as operators. RRU and WIFI equipment can be installed with BluePillar, citizen will be facilitated with WIFI services. Nowadays people have concern about air pollution and prefer clean transportation, such as Electrical Vehicles .However, due to limited space, lack of charging piles becomes an vital factor hinders the popularity of EV. Integrated with AC charging piles, BulePillar solution can save space and be an ideal method for municipal department to spread EV.


According to the ZTE magazine:

ZTE has deployed its IoT solutions in over 140 cities in 40 countries globally. She stated that a wide variety of solutions using smart meters have helped optimise city infrastructure with smart street lighting, parking as well as water and air monitoring Some examples include the deployment of 20 thousand smart street lamps in Paris’ smart city project: the City of Light. These smart street lamps are outfitted with sensors that help manage its energy consumption and maintenance optimisation.

To help alleviate traffic jams in congested cities, ZTE has smart parking solutions that notify users where they can park their vehicle without having to search for hours on end for parking spots. With its smart building and environmental monitoring, building managers would be able to better manage power distribution within the building.

I could not find any information about the 4G / 5G solution being trialed anywhere but I am sure it probably is.

Also, it seems that this Streetlight is developed by another Chinese company called Shanghai Sansi Technology Co.,Ltd. See here. More info also on their Youtube channel here.

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Sunday, 14 July 2013

Interference in 3G Hetnets in case of shared carrier

We had a discussion earlier on 'dedicated v/s shared' carrier here. This post is just re-iterating the fact that while in case of LTE, there are advanced techniques like eICIC to manage interference (see 3G4G blog here), in case of 3G there are no standard techniques to manage the interference in case of shared carrier.

A recent presentation from ZTE in one of the conferences explains this point further that has been reproduced below for reference:




While I think SON can help in certain situations in case of 3G, the chances of coverage black holes are very high which can lead to radio link failures in ongoing calls. As such, the operator has to be absolutely sure where a small cell will be placed in a shared carrier situation for sake of maintaining a good macro coverage. 
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