Sunday 25 September 2016

Full duplex radio could be 5G candidate

Abdul September 25, 2016 0 Comments

"Kumu has conducted successful field trials of a miniature version which can be incorporated into a mobile phone. That could have a huge impact on the communication industry. The duplex radio connected to any network, can double the network's performance," says Bharadia.

"India has much denser users when it comes to cellular data connectivity and very few cellular towers. This technology can be used easily to build relays which can listen to the signal from the cellular tower and transmit it instantaneously, which would help us to extend the range very easily in India. This means we don't need to put in entire infrastructure for the cellular towers," he says.

According to Radha Krishna Ganti, assistant professor, department of electrical engineering, IIT Madras, people have been talking about full duplex for some time. "There are a lot of other techniques for self-interference cancellations. But the MIT researcher is one of the earliest to come up with the technique, as a team began work when he was in Stanford. Until now, there is no commercial deployment of this technique. Full duplex can be a candidate for 5G technology, but it may take another 10 to 15 years," he adds.

The duplex radio has a number of new applications, from improving internet connectivity to motion tracking, says Bharadia. He is now researching on how to use the radio to build an indoor navigation device for the blind as well as enable humans to communicate with wi-fi devices.

Reliance Jio claims 4 crore daily call failure with Idea network

Abdul September 25, 2016 0 Comments

dea Cellular on Friday said it will provide over 230% additional capacity to Reliance Jio to enhance capacity in both access and long-distance interconnection, allowing seamless two- way calling between the networks

NEW DELHI: Idea Cellular on Friday said it will provide over 230% additional capacity to Reliance Jio to enhance capacity in both access and long-distance interconnection, allowing seamless two- way calling between the networks, even as the latter claimed 4 crore daily calls failure between the two networks.

Late in the day, Jio countered saying Idea's offer was inadequate and noted that four crore calls were dropping a day between the two networks, or over 750 calls failing per 1,000 as against the quality of service requirement regulation of less than 5 calls failing per 1,000 calls made.

The Aditya Birla Group Company, in a statement, said that it has now provisioned 1,865 ports for access, increasing capacity by nearly 230% from 565 earlier. The telco is also expanding NLD capacity by nearly 50%.

"Idea is committed to ensure superior quality of service for its customers, and will continue to engage and expand capacity for the new operator to allow seamless traffic flow between the networks," Idea said in a statement on Friday.

Jio, in a counter statement, said that the response by Idea to the severe quality of service issues faced between the Idea and Jio networks is "disappointing and displays lack of intent on Idea's part to resolve this critical issue."

Idea said it invited Jio for a discussion to mutually resolve the traffic asymmetry and the new capacity is the outcome of that discussion. With this capacity expansion, over 2,100 ports will now be available for traffic between Idea and Jio, allowing sufficient buffer for the future.

Jio claimed that Idea has operationalised just 50 new E1s in the last 10 days as a result of which call failure rate has been increasing drastically.

"Adequate interconnection capacity so that call failure rate is less than 5 per 1,000 is a license obligation of all telecom operators," Jio said.

As against certain media statements, the proposed augmentation by Idea increases capacity by only 34%, which is grossly inadequate, Jio said, adding that the proposed augmented capacity is still less than 40% of the initial firm demand placed by Jio based on transparent workings shared with Idea several months ago.

The 4G entrant said that the manner of release of new capacity by Idea and the other incumbent operators is "very disillusioning insofar as it is being reflected as a favour to Jio."

"RJIL fails to understand how the QoS parameters would be met with the proposed augmentation by Idea," it said.

All operators are obligated as per license conditions to provide interconnection such that Quality of Service parameters are met. It is a license obligation and an obligation towards the Indian customers. No favours are being made towards Jio by any of the operators.

The Mukesh Ambani-led telco said that over 12 crore calls were failing daily between Jio and the networks of Airtel, Vodafone and Idea.

"This is a breach of license conditions by the incumbent operators and severely impacts customer interests. This is against zero call failures on the Jio network," it said.

Jio said that it has been repeatedly raising the issue of insufficient POIs as anti-competitive aimed at hindering the entry of a new operator and expects strict and urgent action on the matter.

Bharti Airtel, however, in an earlier statement had said that Jio was creating an unnecessary controversy over PoIs to mask inadequacies in its own service.

Everything you need to know about Reliance Jio's PoI issue

Elabram Systems Thailand open job opportunities:

Abdul September 25, 2016 0 Comments

Thursday 22 September 2016

Multi-RAB (Multiple Radio Access Bearer) Dropped Call Problem

Abdul September 22, 2016 14 Comments

The Multi-RAB (Multiple Radio Access Bearer) Dropped Call Problem

With the proliferation of smart phones, the numbers and percentages of multi-Radio Access Bearer calls on your network continue to grow. In fact, you’ve probably experienced issues that have been born out of Multi-RAB capable handsets. It is actually quite common for multi-RAB calls with circuit switched (CS) and packet switched (PS) services running in parallel to drop more often than calls with a single instance of CS or PS Radio Access Bearer. These types of problems can be quite challenging, because they can go undetected until customers start to complain. And then they take on a new level of challenge as they are assigned to you or your support teams to troubleshoot.

About the Case Study

This is a case study of a mobile carrier that experienced dropped call complaints for seven months. The RF engineers assigned to the problem were highly skilled, but were not armed with the proper tools to effectively troubleshoot. Tekcomms was enlisted to assist in finding the root causes. This article describes the methodology and tools used troubleshoot the problem.

Tools and Tool Operators

The are many ways to discover a problem ranging from customer complaints, to analyzing key performance indicators, to testing. But you can’t fix a problem until you know the root cause. Finding the source of an issue is the real artwork.

The radio environment is an extremely complex ecosystem. The right set of monitoring and troubleshooting tools, coupled with RF Engineering expertise, will take you beyond the symptoms to the source of the problem. Even though the tools are smart and can draw geographical, pictoral and tabular views of network conditions, RF engineering expertise is frequently needed to arrive at the root cause. Arriving at a root cause may require following a series of paths, many of which will end with “performing as expected,” thus forcing you to pursue alternate routes. Tools coupled with RF expertise will help you negotiate these paths.

The Journey to the Root Cause

After reviewing the symptoms of the problem with the carrier’s RF Engineering staff, we looked at the Radio Network Drop Call reports using the Iris Performance Intelligence tool to identify the causes of the dropped calls starting with the “Top N Worst Performing eNodeB” for Detach Attempts and Failures.

We found that CS and PS calls were dropping at an abnormally high rate, so we filtered the data to isolate the problem. Using Iris Session Analyzer’s call trace function, we drilled down into the failed CS and PS call record summaries revealing that most failures were for multi-RAB calls vs. single RAB calls.

Dropped Call Records with Multi-RAB Filter

Drilling into the Multi-RAB Data

Next we drilled down into the multi-RAB calls themselves. We opted for a customized report using theNetwork and Service Analyzer (NSA) tool to allow for deeper root cause analysis. We did this because the customer’s expert RF engineering staff had deep knowledge of the RF environment, so we choose to go statistical over pictoral. The problem was systemic, so we were able to use historical data. Historical data capture is a nice time-saving benefit of the Tekcomms tool suite because we didn’t have to administer a special test environment to capture the data.

A quick view of the statistics on "Handset Type" showed that the majority of Dropped Multi-RAB calls were experienced by Apple iPhone users.

To avoid jumping to a conclusion that the iPhone was the source of the problem, we compared this data with the “IPI Predefined Top 10 Device Report on handset usage statistics” which showed that most of the calls in this network were made using Apple iPhones.

We were able to conclude statistically, that other handsets experienced multi-RAB dropped calls proportionally to the iPhone – this eliminated any particular handset as the root contributor and helped us focus on the other potential sources.

A Deeper Look at the Multi-RAB Drops

To characterize our situation, we looked into RSCP (Received Signal Code Power) and EcNo (Received energy per chip divided by the power density in the band). This first analysis showed protocol causes along with the initial and last measurement results of RSCP and EcNo.

Multi-RAB Dropped Call Records with EcNO and RSCP Data

We made an assumption that -100 dBm or higher RSCP was required for good coverage and interference should not generate EcNo levels greater than -14 dB. With these assumptions in place, it was easy to evaluate which of the failed multi-RAB calls dropped due to radio conditions and which must have had other root causes.

The next level of analysis brought us to a scatter plot of EcNO vs. RSCP:

Scatter Plot of Last Recorded EcNO vs. RSCP Values of Multi-RAB Dropped Calls

So that we could get the executive management team to see things as we saw them, we opted to simplify this visual by drawing a pie chart from scatter plot data. We arrived at the view in Figure 7, which shows that most of the drops occurred despite very good RF conditions.

Narrowing the Path to the Root Cause

We had eliminated handsets and RF conditions as major contributors, so we went deeper into the dropped calls report and found the following trends:

50% of the drops were not caused by the phone, but by network elements. We found a 50/50 distribution between NodeB and RNC issues along with multiple types of issues. One example is shown in figure 8 where the multi-RAB call dropped after one of the involved NodeBs was unable to perform the preparation of a serving HSDPA cell change (“HSDPA Handover”) due to an issue in its state machine. After 5 tries the RNC dropped the call.

NBAP Failures as a Multi-RAB Drop Contributor

Figure 9 shows another contributor to the Multi-RAB drop problem. Activation of compressed mode in the NodeB lead to a NBAP radio link failure resulting in a lost connection with the UE. We doubted that a radio link failure had occurred, because we saw that UL speech frames with good quality were received on the user plane. Even if there had been an issue with the Compressed Mode activation procedure there was no need for the RNC to drop the call.

Compressed Mode Activation Contributes to Multi-RAB Drops

Next we found that only 20% of the calls dropped due to radio conditions that could be optimized, so we had to look further.

Ultimately we found that the chief contributor was that the UE did not increase UL Tx Power after Spreading Factor Reconfigurations or Active Set Update Radio Link Addition Procedures. The typical radio chart for this issue is shown in the figure 10 below:

Spreading Factor Reconfiguraiton as the Chief Source to Multi-RAB Drops

Stage Conclusion

Our conclusion lead us to the equipment manufacturer of the RAN equipment as it was not instructing the mobiles to increase transmit power. We were able to provide all the proof necessary to get the manufacturer to own the issue and commit to a fix.

Summary

We set out to solve this problem with a top down type of approach. We started with the symptoms and sifted our way through the data until we found potential causes. We used an experienced set of RF engineers along with our Tekcomms toolset to examine the data. This combination of expertise and tools allowed us to narrow our path to the root cause.

Test Types and Parameters for LTE Driving Testing

Abdul September 22, 2016 0 Comments

LTE drive tests are an important part of how wireless carriers determine whether their networks are performing well — and get a glimpse into their competitors’ network performance. There are multiple types of LTE drive tests, as well as specific parameters and requirements that should be met for drive tests.

LTE drive tests consist of two basic types: UE or user equipment based, and benchmark testing. UE tests consist of hooking up multiple, live end-user devices such as smartphones and tablets in order for a carrier to get a good look at how devices perform on its networks. Benchmark testing also includes UE devices that run on other operators’ networks, with some running voice calls and some making data connections, for perhaps 4-5 of the largest carriers in a given area in order to determine how an operator’s network measures up to the competition in a geographic area. Benchmark testing usually involves more devices than UE testing.

Equipment for LTE drive tests, according to Emilio Franchy, senior product manager at test and measurement company Anritsu, generally includes a scanning receiver and multiple UEs, plus a laptop that is running software to record the data from the drive testing that can later be analyzed in a laboratory. Anritsu’s Link Master ML 87110A is the company’s multiband receiver or scanning receiver, with the 10 model designed for use in North America and the 20 model for international use. The UEs provide data on performance and interactions with the network, while the scanning receiver can pick up sources of interference that can hamper network performance. Franchy said that some sources of interference can include repeaters inside businesses meant to improve cellular network signals that actually interfere with the network; and more prosaic sources such as certain fluorescent lights that can generate strong interference signals.

According to Franchy, the network trend toward small cell and distributed antenna system deployments has also meant an uptick in a new type of “drive” testing: walking, in order to best simulate a user’s experience in areas with heterogeneous network coverage such as stadiums, large convention centers, and major metropolitan pedestrian areas such as Times Square or downtown San Francisco, where a significant percentage of mobile users will be on foot rather than in vehicles.

Franchy said that Anritsu has also received requests for walking “drive” tests of railways and subways. Major new DAS installations were recently installed in New York City.

Among the major LTE drive test parameters are:

RSSI: Received Signal Strength Indicator, or the strength of the reference signal.
SINR: Signal-to-Noise Ratio, which compares the strength of the signal to background noise.
RSRP: Reference Signal Received Power, the power of the reference signal. This is an LTE-specific drive test parameter and is used by devices to help determine handover points.
RSRQ: Reference Signal Received Quality, or the quality of the reference signal; this is in part, a ratio of RSSI to RSRP
Transmission power between the UE and the base station, both uplink and downlink
Uplink and downlink throughput between the base station and the UE, in order to test the performance of MIMO antennas

For now, Franchy noted, LTE drive testing is mostly related to data performance, as Voice over LTE is not yet widely deployed. However, with larger deployments of VoLTE expected by the end of this year, LTE drive testing will soon come to include the testing of voice calls made on the LTE networks.

Although some of the LTE drive test data can be analyzed during the drive test process as it is displayed on a laptop screen, much of the details can best be examined in a lab. Software in the PC communicates with the devices’ chipsets in order to record and display the data.

Drive testing is required by the Global Certification Forum as part of its process to certify devices for wireless networks.

Ericsson to end manufacturing in Sweden, cut 3,000 jobs

Abdul September 22, 2016 1 Comments

Stockholm: Telecoms equipment maker Ericsson plans to end manufacturing in Sweden with the loss of around 3,000 jobs, Swedish newspaper Svenska Dagbladet reported late Wednesday.

The daily said it had obtained "confidential documents" outlining a three billion kronor (313-million-euro, $350-million) cost-cutting programme.

According to Svenska Dagbladet, 60 percent of the savings were to be made in Sweden, and the remainder abroad.

Ericsson was not immediately available for comment.

The company has around 116,000 employees worldwide, including 15,000 in Sweden.

The 3,000 manufacturing lay-offs would be in the company's core Networks division, the paper said.

If confirmed, the lay-offs would mark the end of an era: Ericsson has had production in Sweden since 1876.

Ericsson announced back in April that it would target structural changes by expanding an existing nine billion kronor global cost and efficiency programme to bolster efficiency and growth.

The newspaper report comes after Ericsson fired chief executive Hans Vestberg in July after seven years in the post.

Under his guidance, the company struggled to fend off competition from rivals Nokia, Siemens and Alcatel-Lucent, and to gain ground in saturated and competitive markets such as Europe and North America.

Ericsson's profits and sales plunged by 26 and 11 percent respectively in the second quarter.

BSNL to offer free voice calling, plans cheaper than Jio

Abdul September 22, 2016 0 Comments

NEW DELHI: BSNL is all set to offer free voice calling and plans cheaper than the new entrant Reliance Jio's Rs 149 entry plan in India. Unlike Jio's offer, the state-run telco's offer will be available for 2G and 3G users.

The zero-voice-tariff plans will be launched in January.

The move will set the stage for a price war in the country's telecom market, which is already seeing private telcos offering more data benefits to customers.

"We are closely observing the market as well as Jio's performance. We will also come up with lifetime free-voice plans from the new year as part of fresh offerings," BSNL chairman and managing director Anupam Shrivastava told Times of India.

He said that BSNL plans to be even lower than the Jio plan, and this could be by Rs 2-4.

The new plans will be offered to BSNL's mobile customers who also have a broadband connection at home. Under this plan, home broadband will be used to route outgoing mobile calls through the landline network.

We estimate that a large amount of time is spent at home, and so here we can ride on our wire-line operations," Shrivastava said.

The state-run telco has a strong market penetration and significant share in many key markets such as Kerala, Himachal Pradesh, Haryana, Odisha, Punjab and UP . It doesn't have operations Mumbai and Delhi, where services are provided by MTNL..

Wednesday 21 September 2016

5G is Three times Faster than 4G with 12GB per Second

Abdul September 21, 2016 0 Comments

T-Mobile Chief Technology Officer Neville Ray laid out his vision for the carrier's move into 5G, which it's making in a big way. Working with Nokia,Ericsson and Samsung, T-Mobile was able to show off speeds of 12 gigabits per second. That's more than three times as fast as the trials Verizon conducted back in February.

Just to put these speeds into perspective, Verizon's 5G trials alone represented a connection that was several hundred times faster than today's LTE and three and a half times faster than Google's superfast Fiber internet service.

Those kinds of speeds are key to driving a whole new generation of applications, whether its virtual reality, self-driving cars or the ability for you to download the entire library of Seinfeld episodes in minutes. But don't hold your breath for 5G to show up anytime soon. The wireless industry hasn't come to an agreement on the underlying standards, and most experts believe the real ball will get rolling in 2018.

As a result, these speed games don't matter much to what the service will actually look like down the line. AT&T, for instance, claims it has hit 14 gigabits per second in its own lab tests.

Still, Ray said T-Mobile is already working on the transition.

"5G is something we are building now," he said, noting that the investment pouring into its LTE network will serve as the foundation.

Verizon was the first to sound the 5G horn, last year, when it jumped out with its intention to test the technology, partially as a way to influence the international wireless community. AT&T followed suit and now has two test locations. Both plan to use a 5G-like wireless ability to test out an alternative version of home broadband service.

T-Mobile, meanwhile, said it is working with the Federal Communications Commission, its majority owner Deutsche Telekom and standards bodies in its preparation for 5G.

Nokia and T-Mobile showcase the real potential of 5G through network testing and applications

Abdul September 21, 2016 0 Comments

Nokia and T-Mobile showcase the real potential of 5G through network testing and applications

Companies conclude preliminary 5G testing, using T-Mobile's 28GHz spectrum and Nokia's commercial 5G-ready AirScale radio platform
Nokia and T-Mobile also collaborate on 5G demonstrations, highlighting LTE-Advanced technologies used for 5G including high order MIMO
Joint 5G demonstration development showcases how industries will benefit from increased speed and low latency communications

20 September 2016

Seattle, Washington - Nokia and T-Mobile US, Inc. (Nasdaq:TMUS) continue to expand their collaborative partnership to show the capabilities of 5G technology with recent achievements around a pre-standards 5G test network. The 5G air interface lab test used T-Mobile's 28GHz spectrum and Nokia's commercial 5G-ready AirScale radio platform. This resulted in industry leading connection speeds and throughput rates of several gigabits per second and real-time latency of 1.8 milliseconds while streaming four simultaneous 4K videos.

Nokia and T-Mobile are also partners in innovative application demonstrations at the operator's experience center, which highlight ultra-definition 360° Virtual Reality, extreme industry automation, massive connectivity and multi-connectivity. These applications preview how 5G technology can meet the future expectations of high growth device connections, zero-latency, mission critical solutions and applications, interactive augmented reality entertainment, and automation in many industries like transportation, health and manufacturing.

Nokia and T-Mobile plan further network testing and application validation, putting into place the necessary steps for standardizing 5G technology.

Neville Ray, chief technology officer, T-Mobile, said: "We've now brought 5G out of the lab and into the field. With Nokia's partnership, we're seeing the kind of astounding data speeds and low latency that are hallmarks of 5G and set the standard for future network performance."

Ricky Corker, executive vice president and head of North America for Nokia, said: "5G is quickly shifting into another gear. We're excited to be working alongside T-Mobile to help drive their 5G plans and show what the future of mobile communications can be for T-Mobile's Un-carrier customers."

Resources

Web Page: Nokia 5G - creating a new era of communications
Web Page: AirScale BTS
Web Page: AirScale RNC

LTE Drive Test Radio Parameters & KPI Optimization

Abdul September 21, 2016 0 Comments

LTE Key Performance Indicators for LTE RF Design
LTE is still a developing technology, and it is important to note that as more field trials are carried out and results validated against the deployed LTE network performance goals, the design targets outlined in this section are subject to change. The quality of the LTE RF design will be evaluated using planning Tool. This will be based on a combination of area predictions and Monte Carlo simulations. It is important to note that the emphasis of the design evaluation will be on focusing where demand is and where potential LTE users are located. The following are a non-comprehensive list of key performance indicators that will be used to validate the quality of the LTE RF network design.
Reference Signal Received Power (RSRP)
Reference signal received power (RSRP) identifies the signal level of the Reference Signal. It is defined as the linear average over the power contributions of the resource elements that carry cell-specific reference signals within the considered measurement frequency bandwidth.
Design KPI for RSRP:
10MHz Channel Bandwidth (700MHz & AWS): -98 dBm /-103 dBm
5MHz Channel Bandwidth (700MHz & AWS): -98 dBm /-103 dBm

A minimum of 95% of the weighted average of the LTE design service area (Cluster or Polygon) must meet the RSRP targets specified above. The criterion of 95% is based on a weighting using the same clutter weights used for traffic spreading. The target specified above is after taking into consideration the indoor loss values assigned per clutter type (In-building losses enabled).

Note: The targets for AWS are only applicable in cases where the AWS design is being carried out as a standalone design and not be used as a capacity layer over an existing 700 MHz layer LTE network.

Reference Signal Received Quality (RSRQ)

Reference Signal Received Quality (RSRQ) identifies the quality of the Reference Signal. It is defined as the ratio N×RSRP/(E-UTRA carrier RSSI), where N is the number of RB"s of the E-UTRA carrier RSSI measurement bandwidth. The measurements in the numerator and denominator shall be made over the same set of resource blocks.

E-UTRA Carrier Received Signal Strength Indicator (RSSI), comprises the linear average of the total received power observed only in OFDM symbols containing reference symbols for antenna port 0, in the measurement bandwidth, over N number of resource blocks by the UE from all sources, including co channel serving and non-serving cells,adjacent channel interference, thermal noise etc. The Design KPI is based on traffic load—traffic load is discussed later in Sections 3.5 and 5.5.
Design KPI for RSRQ:

2 Transmit Paths:
50% Load: -15 dB
100% Load: - 18 dB

A minimum of 95% of the weighted average of the LTE design service area (Cluster or Polygon) must meet the RSRQ targets specified above. The criterion of 95% is based on a weighting using the same clutter weights used for traffic spreading.

Overlapping Zones (Number of Servers)

The overlapping zones (number of servers) criteria are used to establish the quality of the RF propagation
environment from an interference point of view. The goal of the number of servers‘ criteria is to establish
dominance and reduce the waste of network resources and degraded network performance that may occur when multiple servers exist in the same geographic area. The calculation is based on the reference
Signal (RS) signal levels of the servers.

Design KPI for Overlapping Zones (Number of Servers):

Within 5 dB of the best server
• % area with 4 or more servers should be < 2%.
• % of area with 2 or more servers should be < 30%.
Within 10dB of the best server
• % of area with 7 or more servers should be < 2%.

The calculation is based on area importance. The clutter weights used for traffic spreading establishes the importance of the geographic area. The idea here is to focus the LTE design where LTE users are located (for example, core urban areas, convention centers, major stadiums, etc.) instead of areas within
the LTE polygon with no users (for example, scrublands, forests, etc.)

DL Cell Aggregate Throughput

The DL Cell Aggregate throughput is the sum of the throughputs to all the users in the cell at an instant in
time. This is to be measured following Monte Carlo simulations only.

Design KPI for DL Cell Aggregate Throughput:
• 10MHz Channel Bandwidth: 13.4 Mbps per cell
• 5MHz Channel Bandwidth: 6.7 Mbps per cell

A minimum of 90% of the cells in the LTE design reference area (Cluster or Polygon) should have the DL Cell Aggregate Throughput exceeding the minimum design KPI values specified above. No cells should have Aggregate DL Throughput less than 50% of this KPI target.

DL Cell Edge User Throughput

The DL Cell Edge User Throughput is established as the minimum throughput for users at the cell edge of the network at 50% loading. This is to be measured following Monte Carlo simulations only.

Design KPI for DL Cell Edge User Throughput:
• 10MHz Channel Bandwidth: 1000 kbps per user
• 5MHz Channel Bandwidth: 500 kbps per user

A minimum of 90% of all users in the LTE design reference area should have the DL Cell Edge User Throughput exceeding the minimum design KPI values specified above. No more than 2% of the users should have a DL Cell Edge User Throughput less than 50% of this KPI target.

All the statistics for the LTE designs must be generated on a cluster by cluster or super cluster basis following the criteria defined later in the document. In addition to the quantitative evaluation of the LTE design using the KPIs stated above, a qualitative evaluation of the design will also be carried out as outlined in the design evaluation. The exit criteria of a design are met when both the quantitative (KPIs) and qualitative evaluation of the designs are successfully completed.

Tuesday 20 September 2016

4G-LTE Down-link and Up-link Parameters

Abdul September 20, 2016 2 Comments

UPLINK PARAMETERS (incl. TD SCDMA framing) Uplink Parameters

Friday 9 September 2016

Job details: LTE Layer 3/ RRC/SON Development

Abdul September 09, 2016 0 Comments

Experience required for the Job: 2 - 15 years

Job Location: Mumbai (All Areas)

Apply Now

Dear Candidate,

This is regarding an opportunity with an US based product company for Mumbai location for LTE eNodeb/ femto/ small cell -L3 Development / testing expertise.

Company Details:

Its a 4G LTE and WIMAX U.S.-based equipment manufacturer founded in 1998 with headquarters in Boca Raton, Florida and R&D facilities in the United Kingdom and Israel and Mumbai.
The first product, AS4020 platform, was based on CDMA radio technology adapted for fixed wireless access. The company currently provides a wide range of LTE and WIMAX base stations and customer premises equipment.[1] It won the WiMAX World Best of Show Award for the mobile WiMAX MiMAX device, a miniature WiMAX receiver covering all major licensed and unlicensed WiMAX spectrum. The company has recently expanded its development efforts in LTE products to complement its WiMAX offerings.
It has established presence in more than 100 countries and expanded its product lines, both through acquisitions and R&D. The company currently has over 100 engineers developing Mobile WiMAX and LTE solutions.

Job details:

LTE Layer 3/ RRC/SON Development

2yrs - 14yrs of hands on expertise in LTE Layer 3- RRC / SON/S1AP, X2AP/RRM/MRO, MLB/Handover development or testing

Experience in eNode b, femto, Small cell would be preferable.

Please revert with your updated CV if you would be interested to explore this opportunity.