"June is a hot season. We are overwhelmed by the rising temperature, but people in one industry can raise their arms and shout, that is 5g. In the past June, 5g industry has achieved two milestone achievements:
1. The first is that 3GPP has completed the 5g new air interface (5g NR) specification of independent Networking (SA) on time. So far, 3GPP has completed the first phase of the global 5g standard.
2. Second, a series of new 5g phase II projects have been approved, which will have an important impact on 3GPP release 16 specification.
In addition, there was the 2018 imt-2020 (5g) summit held in late June, which mainly discussed the deployment in China to promote the technology integration and application of 5g industry.
So how to understand these results? What does it have to do with our ordinary consumers? Let's have a look.
Students who pay attention to 5g may remember that Qualcomm: after the completion of the first 5g standard, there are three major events. This article introduces three important directions of 3GPP in continuing to promote 5g standardization, including "formulating 5g new air interface independent deployment (SA) specification based on the next generation core network". This is another important achievement after the 5g new air interface non independent deployment specification completed in December 2017.
What do you mean by non independent networking and independent networking?
Non independent Networking (NSA) and independent Networking (SA) are two scenarios for 5g network deployment. In short, independent networking is equivalent to building a new network. The base station, backhaul link and core network are all based on the new 5g NR standard. Non independent networking is based on the existing 4G infrastructure, which only needs 5g base station deployment in the data layer.
Independent networking or non independent networking? At present, the choices of global operators in 5g network layout are inconsistent, and more independent networking is adopted. The advantages and disadvantages of the two are obvious.
It can be seen from the above introduction that the independent networking scheme is obviously more suitable for the characteristics of 5g network, which can reflect the technical advantages of 5g to a greater extent, provide high-performance network services and improve the quality of service. Moreover, it is parallel to 4G network, which can avoid the problems of complex interoperability in the process of integration with LTE network, and the economic benefits will be great after completion, However, the problem is that the cost of independent networking is very high, which is not conducive to being quickly introduced to the market.
The cost of non independent networking is relatively low, and it has better flexibility for the initial 5g network to be introduced to the market, but it is also a transitional scheme. In general, non independent networking and independent networking are very important for 5g industry.
What happened during the release of 5g new air interface independent networking specification?
3GPP completed the 5g new air interface (5g NR) specification of independent Networking (SA) on time. Coupled with the non independent networking specification in December last year, it means that 5g has completed the first phase of full-function standardization, which also means that the first complete 5g international standard has been established, which obviously plays a great positive role in 5g deployment. In fact, it is not easy to complete this specification on time.
Independent networking can connect the new air interface 5g base station (GNB) with the 5g core network, which requires support from various fields of the 3GPP working group. For example, ran (radio access network) needs to formulate the necessary channel for information exchange between user equipment and 5g base station; SA (Service & system aspects) needs to formulate a new network architecture design; CT (core network & terminals) needs to formulate new core network functions. It is a huge project. To complete these tasks in a limited time is inseparable from the efforts and support of the whole industry.
For example, as one of the key enterprises promoting 5g commercial deployment, Qualcomm has made a lot of efforts and support in the process of 5g independent networking. During MWC in February this year, Qualcomm released Xiaolong 5g module solution, which can integrate "more than 1000 components" into several modules, covering many functions such as digital, RF, connection and front-end, Help terminal manufacturers put into production quickly with lower cost and less time. This is of great significance for the launch of 5g terminal in 2019, making it possible for 5g to be a practical and beautiful product. This will be mentioned later.
In addition, Qualcomm also conducted 5g new air interface interoperability tests with many system manufacturers including Datang Mobile and global operators, including 5g user terminals provided by Qualcomm.
More importantly, the world's first 5g chipset Xiaolong X50 modem launched by Qualcomm has also been selected by 20 terminal manufacturers around the world to support the first batch of 5g terminals they built. In addition, many operators around the world have selected Xiaolong X50 5g modem for 5g new air interface mobile test under 6GHz and millimeter wave band.
Progress of 5g deployment in China
The 2018 imt-2020 (5g) summit mainly discussed the specific matters of promoting the deployment of 5g in China. At present, 5g deployment in China is being carried out in an orderly manner. For example, the planning of spectrum resources is the vanguard of 5g commercial. Looking at the construction of 5g commercial stations in China, the Ministry of industry and information technology officially released the 5g if planning in November 2017, specifying that a total of 500MHz of 3.3-3.6ghz and 4.8-5.0ghz will be used for 5g.
As for the high-frequency millimeter wave band, it is still of great significance for 5g. At present, there are only two test bands (24.75-27.5 GHz and 37-42.5 GHz). Qualcomm announced the completion of 5g data connection in 28ghz millimeter wave band in 2017.
In terms of 5g network test, China is also ahead of the industry. It is also inseparable from Qualcomm's active promotion and matching. In November last year, Qualcomm announced that it would cooperate with ZTE and China Mobile to realize the world's first end-to-end 5g new air interface system interoperability based on 3GPP standard, which can be considered as an important industry milestone for 5g new air interface technology to move towards large-scale pre commercial, bringing 5g that people used to discuss to people's side; The end-to-end 5g new air interface system operates in the 3.5GHz frequency band, which is of great significance to the future communication technology R & D and deployment of countries such as China that deploy 5g in the medium frequency band.
What is the focus next?
After the standardization work of 5g phase I is completed, it is easy to think of the work of phase II. In June this year, 3GPP also approved a series of new projects in the second phase of 5g, including 5g NR enhanced mobile broadband (embB) performance improvement, 5g NR private network for industrial Internet of things (iiot) and ultra-high reliability and ultra-low delay communication (urllc), and 5g NR based Internet of vehicles c-v2x supporting more advanced use scenarios. These projects will have an important impact on 3GPP release 16 specification.
The three 5g application scenarios defined by 3GPP are embB, 3mmtc and urllc respectively. The project focus in the second phase will focus on the latter two scenarios. Although these projects have just been approved, the technical standards experts have made full preparations in the previous work. For example, in terms of Internet of vehicles c-v2x technology, Qualcomm launched the R14 version of Qualcomm 9150 c-v2x chipset solution last September, and actively used the chipset to accelerate the commercial process of c-v2x technology. At present, Qualcomm has cooperated with auto manufacturers and auto ecosystem members such as Audi, Ford, Citroen and SAIC in Germany, France, South Korea, China, Japan and the United States to carry out a number of field verifications of c-v2x, paving the way for the use of the Internet of vehicles after the 5g network is ready.
In addition, the integration of industrial 4.0 and 5g NR will also be a key use case in the next stage. Industrial data transmission requires very high real-time performance. 5g low delay, high speed and priority support can become the basis of industrial Internet. In this regard, Qualcomm has also carried out a lot of research. For example, it demonstrated the industry's first 5g NR wireless PROFINET Industrial Ethernet demonstration on mwc2018. The demonstration previews the new use case of 5g NR urllc (ultra reliable low delay communication) supporting sub millisecond delay, including the ability of precise command and control in demanding factory automation applications.
5g mobile phone, see you in 2019
In fact, with so much said above, what ordinary consumers are most concerned about is when 5g mobile phones will appear. At present, the answer generally given in the industry is 2019. Oppo, vivo, Huawei and Yijia have previously announced that they will launch 5g mobile phones in 2019. Most of them are inseparable from Qualcomm's deployment in 5g network and the research, development and testing of 5g use cases with ecosystem partners.
In fact, we can see Qualcomm's efforts and contributions in promoting 5g intelligent terminals. In October last year, Qualcomm demonstrated the reference design of the first 5g smartphone. Before that, Qualcomm had launched a 5g NR prototype system supporting intermediate frequency and high frequency, launched a 5g oriented modem - Xiaolong X50 5g modem, and completed the world's first 5g data connection. Then, as mentioned above, Qualcomm cooperated with ZTE and China Mobile to realize the world's first end-to-end 5g new air interface system interworking based on 3GPP standard.
In April this year, Qualcomm and domestic mobile phone manufacturer vivo jointly conducted a network demonstration of 5g prototype, allowing people to directly feel the extremely high network speed that 5g mobile phones can bring. In June this year, Qualcomm and Datang Mobile completed the interoperability test of 5g new air interface based on 3.5GHz band, using the user terminals provided by Qualcomm. The completion of one pile test is the key technical guarantee for the launch of 5g terminal in 2019.
It must be mentioned that 5g needs more spectrum, which will bring greater challenges to the design of RF devices. Poor design will affect the final forming of 5g terminals. As mentioned earlier, the Xiaolong 5g module solution launched by Qualcomm during MWC can solve this problem. And with its success and leading position in leading 3G, 4G LTE and RF front-end, Qualcomm is fully ready to provide multi Gigabit and multi-mode products required for global 5g deployment.
Finally, this series of achievements in June this year tell us that 5g is on the road and getting closer and closer to us. In the future, when we enjoy the advancement and convenience brought by the 5g era, we have to thank the tireless efforts and efforts of the current technicians.
Search "aiban.com" and pay more attention. You can master the latest development board, intelligent hardware, open source hardware, activities and other information every day. Recommend attention!
[wechat scanning can be followed directly]“
Our other product:
