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Keysight, UNISOC Demonstrate Latest 5G NR Technology at 22nd GTI Workshop in Shanghai, China

Extended collaboration supports large-scale trials led by CMCC to accelerate 5G NR development

 

Keysight Technologies, Inc. (NYSE: KEYS), a leading technology company that helps enterprises, service providers, and governments accelerate innovation to connect and secure the world, announced that the company is extending its collaboration with UNISOC, Inc. to participate in the CMCC 5G large-scale trials. Keysight is helping UNISOC accelerate 5G New Radio (NR) chipset development with substantial support from GTI. Both UNISOC and Keysight achieved 5G NR PHY layer interoperation based on the latest 3GPP Release 15 5G NR standards in the CMCC 5G Innovation Center Lab, and demonstrated this achievement at the 22nd GTI workshop.

The event, organized by the GTI, brought together mobile operators, vendors, and companies from vertical industries to address and discuss key issues and the latest progress in 4G and 5G technology development. GTI was founded in 2011 to promote the global development of TD-LTE, encourage convergence with FDD, and foster a cross-industry innovative and a synergistic 5G ecosystem.

With Keysight’s industry-first 5G solutions, UNISOC is able to speed up its 5G NR chipset development, pre-silicon deployment, and full stack chipset validation across sub-6GHz frequencies. Keysight’s suite of 5G network emulation solutions is the only seamless radio frequency (RF) and protocol workflow approach that enables chipset and device makers to efficiently develop and test evolving 5G standards and latest 4G standards in a single solution. These solutions accelerate the delivery of new 5G NR products by leveraging common development tools to eliminate siloed data sets and share design insights gained across each stage of the device lifecycle.

“We are pleased to extend our close collaborations with global market leaders UNISOC and CMCC to showcase industry-leading 5G design and test capabilities based on the latest 3GPP Release 15 standards. Our scalable 5G test and measurement solutions – from L1 to L7 – are helping a connected ecosystem accelerate 5G development and commercialization, making the promise of 5G real”, says Satish Dhanasekaran, senior vice president of Keysight Technologies, and president of the Communications Solutions Group.

Mr. Jingming Wang, COO of UNISOC said, “We are very excited to collaborate with China Mobile and Keysight to demonstrate latest 5G NR technology. In the future, 5G NR will enable a premium mobile experience. We will continue to join hands with our partners to accelerate 5G NR commercial reality through technological innovation and innovation-driven revolution.”

As a core subsidiary of Tsinghua Unigroup, UNISOC is a leading fabless semiconductor company committed to the independent R&D of core chipsets in mobile communications and IoT. Its products cover mobile chipset platforms supporting 2G / 3G / 4G / 5G communication standards, IoT chipsets, RF chipsets, wireless connection chipsets, security chipsets, and TV chipsets. With more than 4,500 staff, 14 R&D centers and 7 customer support centers around the world (as of Jan 2018), UNESCO is dedicated to being one of the leading chip design companies in the world, the top 3 mobile baseband chipsets supplier in terms of global market share, and the largest pan-chip supplier in China with leading 5G technology. For more information, please visit www.unisoc.com.

About Keysight in 5G

The development of 5G depends on up-to-date tools that let designers easily explore new signals, scenarios and topologies. Keysight’s 5G solutions are ready to enable deeper insights as development evolves with the standard. In design and test, Keysight is helping industry leaders innovate across new and existing technologies as they transform ideas into reality. Additional information about Keysight’s 5G design, test and measurement solutions is available at www.keysight.com/find/5G.


About Keysight Technologies

Keysight Technologies, Inc. (NYSE: KEYS) is a leading technology company that helps enterprises, service providers, and governments accelerate innovation to connect and secure the world. Keysight’s solutions optimize networks and bring electronic products to market faster and at a lower cost with offerings from design simulation, to prototype validation, to manufacturing test, to optimization in networks and cloud environments. Customers span the worldwide communications ecosystem, aerospace and defense, automotive, energy, semiconductor and general electronics end markets. Keysight generated revenues of $3.2B in fiscal year 2017. In April 2017, Keysight acquired Ixia, a leader in network test, visibility, and security.

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Keysight, MediaTek Extend Collaboration to Accelerate Chipset Development and Testing of 5G NR Protocol Stacks

Industry first 5G R&D test solutions help chipset developer achieve time to market goals

 

Keysight Technologies, Inc. (NYSE: KEYS), a leading technology company that helps enterprises, service providers, and governments accelerate innovation to connect and secure the world, announced that the company is extending its collaboration with MediaTek, Inc. to accelerate 5G New Radio (NR) chipset development and testing of 5G NR protocol stacks.

MediaTek will use Keysight’s 5G Protocol R&D Toolset for Layer 2 and Layer 3 protocol development, pre-silicon deployment, and full stack chipset validation across sub-6GHz and mmWave frequencies using the latest 3GPP Release 15 5G NR standards.

Keysight’s 5G Protocol R&D Toolset is part of Keysight’s suite of network emulation solutions, the only seamless radio frequency (RF) and protocol workflow approach that enables chipset and device makers to efficiently develop and test evolving 5G standards and latest 4G standards in a single solution. These solutions accelerate the delivery of new 5G NR products by leveraging common development tools to eliminate siloed data sets and share design insights gained across each stage of the device lifecycle.

“Keysight is excited to offer our industry leading 5G expertise and elevate our long-term collaboration with MediaTek in 5G wireless technologies to speed up deployment of 5G NR technologies and products to the market,” says Kailash Narayanan, vice president and general manager of Wireless Devices and Operators at Keysight Technologies. “Keysight’s network emulation solution portfolio offers the scalability and capabilities the mobile device ecosystem needs for early protocol stack development and chipset validation. We are pleased to engage with MediaTek on these leading 5G technologies.”

About Keysight in 5G

The development of 5G depends on up-to-date tools that let designers easily explore new signals, scenarios and topologies. Keysight’s 5G solutions are ready to enable deeper insights as development evolves with the standard. In design and test, Keysight is helping industry leaders innovate across new and existing technologies as they transform ideas into reality. Additional information about Keysight’s 5G design, test and measurement solutions is available at www.keysight.com/find/5G.


About Keysight Technologies

Keysight Technologies, Inc. (NYSE: KEYS) is a leading technology company that helps enterprises, service providers, and governments accelerate innovation to connect and secure the world. Keysight’s solutions optimize networks and bring electronic products to market faster and at a lower cost with offerings from design simulation, to prototype validation, to manufacturing test, to optimization in networks and cloud environments. Customers span the worldwide communications ecosystem, aerospace and defense, automotive, energy, semiconductor and general electronics end markets. Keysight generated revenues of $3.2B in fiscal year 2017. In April 2017, Keysight acquired Ixia, a leader in network test, visibility, and security.

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Keysight Technologies Ensures Coverage and Service Quality in Mission Critical and Consumer-Based IoT Networks

New Handheld Field Measurement solutions enable IoT network operators and service providers to realize faster time-to-revenue

SANTA ROSA, Calif., June 27, 2018

Keysight Technologies, Inc. (NYSE: KEYS), a leading technology company that helps enterprises, service providers, and governments accelerate innovation to connect and secure the world has expanded the company’s handheld field measurement solutions with the new Nemo IoT Meter and Nemo Handy IoT solutions. These solutions enable network operators and service providers to actively test networks in the field, ensuring the coverage and service quality of networks in mission-critical and consumer-based Internet of Things (IoT) applications, accelerating installations, and speeding time-to-revenue.

“The availability of LTE network coverage does not necessarily mean that an IoT service is up and running smoothly in specific customer locations,” said Kai Ojala, head of Nemo measurement solutions at Keysight Technologies. “By performing active field measurements with Keysight’s handheld IoT measurement solutions, installation companies and operators’ technical and sales staff can now validate that networks meet set requirements, reliable IoT services are offered to end customers for their IoT applications, and onsite installations will be successful.”

Nemo IoT Meter is Keysight’s easy-to-use handheld measurement tool for verifying IoT service quality at customer premises. It runs on a regular Android-based smartphone and is connected through a Narrowband (NB) -IoT or LTE-M dongle. With Nemo IoT Meter, you can easily check IoT network coverage and connection quality, and create an intelligible report of the performed measurements.

Nemo Handy IoT is a professional handheld field test solution that provides operators with in-depth information on their IoT network’s key performance indicators (KPIs). Specific KPIs measured include coverage, quality, and detailed log files from active field testing. All results can easily be exported for further post-processing with analytics tools like Keysight’s Nemo Analyze and Nemo WindCatcher.

Keysight offers a full portfolio of Nemo-branded field measurement solutions for NB-IoT and LTE-M quality assurance. In addition to Nemo IoT Meter and Nemo Handy IoT, the portfolio features Nemo Outdoor for advanced field testing.

View additional information on Keysight’s Nemo IoT Meter.

Solution images are located at www.keysight.com/find/nemoIoT-images.


About Keysight Technologies p>Keysight Technologies, Inc. (NYSE: KEYS) is a leading technology company that helps enterprises, service providers, and governments accelerate innovation to connect and secure the world. Keysight’s solutions optimize networks and bring electronic products to market faster and at a lower cost with offerings from design simulation, to prototype validation, to manufacturing test, to optimization in networks and cloud environments. Customers span the worldwide communications ecosystem, aerospace and defense, automotive, energy, semiconductor and general electronics end markets. Keysight generated revenues of $3.2B in fiscal year 2017. In April 2017, Keysight acquired Ixia, a leader in network test, visibility, and security.

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Minimizing Noise Impacts When Using Oscilloscope Probes

Have you ever been fighting noise on your measurements and can’t tell where it’s coming from? There are four possible contributors:

  1. Your device under test
  2. Your probe
  3. Your oscilloscope
  4. Or a combination of all three.

 

Learn about the different ways you can minimize noise impacts and improve the quality of your measurements.

 

System Noise Consequences
You should look at your probe and oscilloscope together as one measurement system that can add noise to your measurement. Figure 1 below shows two possible noise sources from your system: one source from your probe and the other from your oscilloscope. Some amount of noise will come from the probe’s amplifier system and ride on your DUT’s signals, which is sent to the attenuator of the oscilloscope. All scopes use an attenuator to vary the vertical scale on your oscilloscope screen. Most oscilloscopes can detect your probe’s attenuation ratio and will automatically adjust its vertical scale accordingly. For example, for a 10:1 probe, the oscilloscope will simply amplify both the signal and noise by a factor of ten. Be sure to keep this in mind as you minimize the noise in your signal.

 

 

Signal to noise diagram

Figure 1: Signal-to-noise diagram of the oscilloscope and probe

 

Probe Noise Impacts
Due to added inductance, the probe ground/signal loop formed by the probe and tip contributes to the noise on your signal. This noise can be reduced by:
1) Selecting just enough scope/probe bandwidth to measure your DUTs signals. Excessive bandwidth will contribute to the system’s overall noise.
2) Setting your oscilloscope’s vertical range to the most sensitive voltage range possible while still seeing your DUT’s complete signal on the oscilloscope. This will reduce the amount of gain the oscilloscope needs.

 

Oscilloscope noise floor with no probe connected

Figure 2: Oscilloscope noise floor with no probe connected

 

Oscilloscope noise floor probe connected

Figure 3: Oscilloscope noise floor probe connected

 

In Figure 2, you can see the noise floor of an oscilloscope with no probe attached is 295 µV root mean square (rms).
In Figure 3, with the probe attached to the oscilloscope, the noise increases from 295 to 485 µV rms. So, the probe itself is adding around 200 µV rms (or 67% more noise)! This noise level will reduce when your probe is well grounded, but it is worth noting the increased noise level just by adding a probe. Keep your ground and tip lengths as short as possible to reduce this effect.

 

Probe Attenuation Impacts
The probe attenuation you need is going to depend on the Voltage of the signal you are measuring. The attenuation ratio changes how the signals are fed into your oscilloscope. For example, a 10:1 probe connected to a 1V signal will pass 100 mV to the scope’s input.The oscilloscope will either read (or you can manually enter) the probe’s attenuation ratio. Then the oscilloscope will display the correct signal, factoring in the probe’s attenuation ratio. Having a higher attenuation ratio (100:1, 1000:1) will allow you to view higher voltages, but it will also make the scope’s internal amplifier noise more pronounced. The higher the attenuation ratio, the more scope noise you’ll see. For example, a 10:1 probe will show 10x the noise.

 

One easy way to estimate the amount of your probe noise is to check the attenuation ratio and the probe noise level from the probe’s data sheet or manual. Many probe manufacturers characterize the probe’s noise as equivalent input noise (EIN) and will be listed in volts rms.

 

The probe pictures in Figure 4 (from bottom left going clockwise) are examples of a 10:1 passive; 10:1 single-ended active; 50:1 or 500:1 high voltage; and a 1000:1 high voltage probe. These attenuation ratios are needed to reduce the probed signal down to levels that the oscilloscope attenuators can handle and display on the screen without clipping.

 Examples of probe attenuation and voltage levels
Figure 4: Examples of probe attenuation and voltage levels

 

Common attenuation guidelines and limitations are shown in Figure 5 below. Keep this in mind when determining the attenuation ratio you need.

 

1:1 10:1 100:1
Suitable for measuring low voltage, low frequency signals (<~25MHz) general purpose measurement high voltage measurement
Limitations limited bandwidth, dynamic range typically up to 300 V high probe noise

Figure 5: Probe attenuation guidelines

 

Figure 6 below compares the same signal measured by both a 1:1 and a 10:1 passive probe. The screen shot clearly shows how attenuation from a 10:1 probe can cause the oscilloscope to amplify both the signal and noise. The result is an exaggerated level of noise in the signal (green trace).

 

A 50 mVp-p sinewave measured with bot 1:1 and 10:1 probes - overstated 36%

Figure 6: A 50 mVp-p sine wave measured with both a 1:1 and 10:1 probe.

 

Higher attenuation ratios lead to higher levels of noise shown on the oscilloscope. This might lead you to believe that you should always use a 1:1 probe. But that’s not true! Lower attenuation probes typically have much higher loading on your system and may have lower dynamic range. There are tradeoffs, and you will need to pick the probe that fits your measurement best. You want a probe that can effectively measure the level of voltage on your DUT with the least amount of attenuation and lowest loading effects.

 

Conclusion
Your system noise can be exaggerated by probe and oscilloscope noise levels. Selecting the correct probe for your application with the correct attenuation ratio will lower the probe/oscilloscope added noise. As a result, your measured signal is a cleaner representation of what is on your DUT.

 

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