2022-09-29

What is the key to 5G expansion?

2016 12 months, I for the first time the author describes  the five defined 5G new air interface(5G NR wireless invention , in retrospect seems like yesterday. At the time 5G is not yet deployed, but since then we continued rapid expansion of the 5G global layout. 2020 7 March, 5G standards of the second version of the Release 16 frozen, and cut-off at the time, over 70 mobile operators have already deployed commercial 5G services.

5G NR Release 15--to lay the 5G Foundation
Qualcomm(Qualcomm's 5G vision is to create a unified connection architecture that supports a diverse Terminal, Services, spectrum and deployed. In order to achieve this goal, we first 5G standard 3GPP Release 15 has contributed numerous critical invention, the invention for the next ten years of the 5G Evolution technology laid the Foundation.


Qualcomm is a 3GPP 5G NR Release 15 standard contribution of the key invention

In the discussion of Release 16, I first give a few examples to explain why high-pass for Release 15 of the invention to achieve 5G full potential so important. For example, based on the slot of the flexible framework for the realization of different 5G services, including enhanced mobile broadband, mission-critical business and big things of efficient multiplexed to create the conditions. Flexible OFDM sub-carrier bandwidth to support the same 5G NR design extends to new and different spectral bands from 1 GHz to 60 GHz and above), mobile millimeter-wave substantial increase in network capacity to meet the 5G expansion needs, and make the ultimate speed as possible. In order to better demonstrate these Release 15 of the invention in 5G systems play a Central role, we use the lower figure of the transportation system as an analogy.

5G NR Release 15技术类比

Note:

Flexible slot-based framework: based on the slot of the flexible framework

Flexible road framework: flexible traffic framework


5G NR Release 16-promoting 5G expansion.
2020 年 7 月, 3GPP achieved another important milestone-complete Release 16 specifications, opening the 5G Evolution of a new Chapter. Release 16 is the industry work together to results, it is further enhanced 5G technology Foundation coverage, mobility, efficacy, and reliability, and the 5G extended to new use cases, bands and vertical industries. Release 16 includes a series of ambitious art project, this article will these techniques refined for the 5G continued evolution of the critical six key invention in the field of in no particular order of.


Release 16 six areas critical to the invention, the extension and enhancement of 4G and 5G NR base

Field of the invention#1: high-precision positioning
Accurate terminal positioning for enabling many vertical applications is critical, such as public safety and indoor navigation. Based on cellular technology positioning can be used with existing global navigation satellite system GNSS complementary, to meet the outdoor and indoor positioning requirements. For a long time, Qualcomm has been positioning technology pioneers, and by enabling the Release of 16-positioning technology technology and innovation continue to strengthen in this area of leadership. Release 16 supports multi/single-cell positioning and terminal-based positioning, defines a new positioning reference signal PRS, and can be applied to the round-trip time RTT, the angle of arrival/departure angle(AoA/AoD, the arrival time difference TDOA and a variety of 5G positioning technology. Based on the RTT positioning without the strict inter-node network clock synchronization, TDOA and other traditional techniques are still needed, and can support a more flexible network deployment and maintenance. These technologies are designed to meet the indoor 3 meter and outdoor 10 meters of the initial 5G positioning accuracy requirements. In Release 17, the high-precision indoor positioning capabilities for the Industrial Internet of things(IIoT use cases brings sub-meter level accuracy positioning.



5G NR-U supports two modes of operation and multiple deployment scenarios

Field of the invention#2: Advanced Power saving features and mobility
Most of the 5G mobile terminal are using battery power, so continue to make breakthroughs in energy efficiency limit in order to reduce the power consumption of the terminal become imperative. In Release 16, we promote the realization of a number of new system power-saving features, including: 1 New Wake-up signal WUS available in low-power mode as much as possible to reduce the control signaling monitoring; 2 simplify the random access procedure, RACH, and have a wider advantage; 3. the low power consumption of the carrier aggregation control, without the need to use force when closing the secondary carrier. Mobility is we are committed in Release 16, further enhancement of another aspect. For example, the terminal-driven conditional switching, early measurement reporting and dual-connected to the main cell collection MCG failure recovery, can reduce the handover interruption time is close to zero milliseconds switching, and further enhance the terminal mobility.

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Release 16 WUS将降低终端能耗

 

Field of the invention#3: high-precision positioning
5g Android Motherboard accurate terminal positioning for enabling many vertical applications is critical, such as public safety and indoor navigation. Based on cellular technology positioning can be used with existing global navigation satellite system GNSS complementary, to meet the outdoor and indoor positioning requirements. For a long time, Qualcomm has been positioning technology pioneers, and by enabling the Release of 16-positioning technology technology and innovation continue to strengthen in this area of leadership. Release 16 supports multi/single-cell positioning and terminal-based positioning, defines a new positioning reference signal PRS, and can be applied to the round-trip time RTT, the angle of arrival/departure angle(AoA/AoD, the arrival time difference TDOA and a variety of 5G positioning technology. Based on the RTT positioning without the strict inter-node network clock synchronization, TDOA and other traditional techniques are still needed, and can support a more flexible network deployment and maintenance. These technologies are designed to meet the indoor 3 meter and outdoor 10 meters of the initial 5G positioning accuracy requirements. In Release 17, the high-precision indoor positioning capabilities for the Industrial Internet of things(IIoT use cases brings sub-meter level accuracy positioning.

5G positioning technology spawn new use cases

 

Field of the invention#4: direct communication
Release 16 is another key field of the invention is for the cellular Internet of vehicles C-V2X-based 5G NR of direct communication letter. Qualcomm has been actively promoting the Release 14 and Release 15 C-V2X development, is intended to provide basic safety characteristics; on this basis, Qualcomm continued to promote the Release of 16 in straight communication technology, the key enhancements will support collaborative driving and sensor sharing and other advanced applications. Release 16 in higher throughput, lower latency, distance-based reliable multicast, distributed synchronization and harmonization of the quality of Service(QoS control, and many other significant improve-these will help to improve the self-driving and semi-automatic driving efficiency and safety. Release 16 is based on the 5G NR of direct communication is another basis of technology, can be applied to a wide range of new and future use cases, such as public safety communications and commercial applications.


Supports reliable multicast-direct communication-enabling advanced 5G V2X use cases

 

Key area#5: a business-critical design
Release 16 of the 5G NR adds many new features, can be enhanced by 5G system performance to support business-critical use cases, such as industry 4. 0 factory automation. 5G NR design one of the goals is to meet more stringent reliability requirements up to 99. 9999%reliability, while maintaining millisecond delay. Coordinated multi-point communication CoMP is to achieve this goal the key enabling technology, the use of multiple transmit and receive point multi-TRP create a redundant communication path of the spatial diversity. In addition, Qualcomm in Release 16 of the invention can further improve the service multiplexing, to support business-critical traffic and mobile broadband traffic in General 5G NR frame more efficiently coexist, but also supports the logical channel priority, the uplink and downlink head start and many other enhancements.

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Support for multi-TRP CoMP support ultra-reliable low-latency communication

 

Field of the invention#6: new deployment mode
In order to achieve support diverse deployment of the 5G vision, Release 16 by introducing a number of new features extend the 5G range of applications. For non-public networks NPN support will help accelerate the 5G enterprise network deployment, such as industrial IOT and enterprise network use cases. Time-sensitive networking TSN support 5G network provided there is a strict synchronization and delay requirements of the service, which for many industrial IOT use cases such as machine control is essential. New interference measurement and suppression techniques such as RIM/CLI support robust deployment, and for the future support of the base station to the base station, the mobile phone interference suppression of dynamic TDD operation laid the Foundation. Integrated access and backhaul(IAB)support millimeter wave base station for wireless access and backhaul in the deployment of dense networks can be effective in reducing new fiber optic deployment needs. Finally, Release 16 also supports the 5G spectrum to deploy eMTC and NB-IoT, as well as for 5G Massive IOT services by the 5G core network management eMTC and NB-IoT.

 

Integrated access and backhaul to support more cost-effective millimeter wave deployment

Looking to the 5G Future View
5G standards Second Edition specification Release 16 has been completed, but Qualcomm will never stop pushing 5G technology evolution, the release of the latest generation of mobile communication technology's full potential. We have partnered with the mobile ecosystem collaboration Release 17-related projects, and for the Release of 18 and future versions of the advanced technology research and development. 5G future view to make people excited, the more the 5G innovation being bred among them will be energized the next ten years and longer after the continuous technological breakthroughs.


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