A summary of the progress of China's 5G technology research and development
First, 5G technology research and development test background
1, 5G has entered the critical stage of standard setting
Currently, the International Telecommunication Union (ITU) has completed the 5G vision study, identified 5G naming, typical scenarios and key capability indicator systems, and officially released the IMT-2020 (5G) work plan. Mainstream enterprises at home and abroad have reached a consensus that they will develop a globally unified 5G standard in the international mainstream mobile communication standards organization 3GPP. According to the 3GPP work plan, the 5G standard study will be launched in early 2016, the first version of the 5G standard will be completed in June 2018, and the 5G standard version will be completed in September 2019.
2. The 5G technology route has gradually become clear, and the key technical consensus has been basically achieved.
The global industry has basically formed a consensus, and the 5G wireless technology route includes new air interface and 4G evolution air interface. The new air interface will fully meet the business needs of the mobile Internet and the Internet of Things. The 4G Evolved Air Interface can greatly enhance the user experience by introducing a series of new key technologies. In terms of key technologies, Orthogonal Frequency Division Multiplexing (OFDM) will be the technical basis of 5G wireless interfaces, large-scale antenna arrays, ultra-dense networking, new multiple access, new waveform technology, advanced code modulation, high-band communication, etc. Play an important role in the design of future 5G system solutions. In addition to wireless technology, 5G will also achieve breakthroughs in network technology. 5G will adopt a new network architecture based on virtualization technology, in which network slicing, mobile edge computing, control bearer separation and network function reconstruction will become 5G networks. Core key technology.
3. Countries actively deploy 5G trials to promote 5G technology, standards and industry development
The EU has invested 1.4 billion euros in research and development funds through 5G PPP major projects, and plans to conduct 5G scale trials in 2018 to verify 5G technical standards. South Korea released its 5G national strategy and plans to launch a 5G pre-commercial trial in the 2018 Winter Olympics to provide a 5G business experience for the Olympic venues. Japan plans to provide official 5G commercial services before the 2020 Summer Olympics and conduct 5G technology trials through the Japanese operator NTT DoCoMo to organize major global manufacturing companies. The United States recently released 5G frequencies and plans to spend $400 million over the next seven years to build experimental 5G networks in four US cities.
4. China promotes 5G R&D in all directions and launches 5G technology R&D test
Under the organization of the IMT-2020 (5G) promotion group, Chinese enterprises, universities and scientific research institutions have carried out all-round 5G research and development, and have achieved a series of research results in the field of 5G demand, technology and spectrum, which has effectively promoted global 5G technology. The development of standards. At present, the 5G vision and demand research has been completed and a global consensus has been obtained. The industry has taken the lead in clarifying the 5G technology route and core key technologies, and has released 5G wireless and network technology architecture. At present, 5G standardization work has been started. China officially launched the 5G technology R&D test in January 2016. China's 5G technology research and development trials are open to foreign companies. Currently, the participating units include China Information and Communication Research Institute, China Mobile, China Unicom, China Telecom, Domestic and foreign companies such as Como, Huawei, ZTE, Datang, Ericsson, Samsung, Nokia and Shanghai Bell, Intel, Qualcomm, Spreadtrum, Rohde Schwarz, Keysight, and Galaxy Highlights, covering operators and equipment manufacturing All links of the industrial chain such as enterprises, chips and instrument companies. The participation of domestic and foreign enterprises is conducive to promoting the formation of consensus on 5G key technology standards and laying the foundation for the construction of 5G industry chain.
Second, China's 5G technology research and development test overall goals and work plan
1. Overall goal
The overall goal of China's 5G technology R&D test is to promote the 5G core technology maturity through 5G test, promote 5G technology research and development; verify 5G technology design, develop 5G technology concept prototype that meets ITU performance indicators, and lay the foundation for 5G product development; The global 5G joint test platform promotes the formation of a globally unified 5G international standard.
2. Master plan
Based on the 5G work plan determined by ITU and 3GPP, combined with the 5G R&D plan of major global enterprises, China's 5G test is implemented in two steps. The first step is 5G technology R&D test (2016-2018), the main goal is to support 5G international standards. The second step is the 5G product development test (2018-2020). The main goal is to carry out 5G pre-commercial testing based on the first version of the 3GPP standard. At present, the main research and development of 5G technology research and development is carried out. The overall planning of China's 5G technology R&D test is in three stages:
The first phase (January 2016-September 2016) 5G key technology verification phase.
The main objective of this phase is to evaluate the performance of 5G candidate key technologies through the testing of 5G single key technology prototypes, and promote the formation of 5G key technology standards consensus. The test targets are key technology test prototypes developed by mainstream enterprises in the industry.
The second phase (June 2016 - September 2017) 5G technical solution verification phase.
This stage is mainly for the 5G performance indicators determined by the ITU. It is based on the 5G concept prototype developed by different manufacturers' 5G technology solutions to verify the performance of 5G technical solutions of different manufacturers and support the formulation of international standards. At this stage, uniform equipment specifications and test specifications will be developed, and third-party test instruments will be used to conduct single-base station performance tests in a unified test environment.
The third phase (June 2017-2018) 5G system verification phase.
The main objective of this phase is to build a 5G typical application scenario through a multi-base station high-low frequency hybrid networking, to carry out the key technology verification of the 5G system networking, to evaluate the performance of the 5G system under the networking conditions, and to carry out a 5G typical service demonstration. To lay the foundation for the subsequent 5G trial commercial.
Figure 1 China 5G test master plan
TWS, means true wireless stereo. The implementation of this technology is based on the development of bluetooth chip technology. Technically speaking, it means that the mobile phone is connected to the main speaker, and then the main speaker is connected to the speaker through the Bluetooth wireless mode, thereby realizing the true separation of the left and right channels of the Bluetooth. When the slave speaker is not connected, the main speaker returns to the mono sound quality. TWS technology is used in the field of Bluetooth Headsets, so it has also spawned a new product - TWS Bluetooth headset.Since the TWS Bluetooth headset does not require a wired connection, the left and right earphones form a stereo system through Bluetooth, and the convenience of listening, talking, and wearing are improved.
Advantages:
1. True wireless structure, completely abandon wired troubles, and exercise more freely.
2. Various ways of use, both exclusive and shared, and can also be used as two earphones.
Headphones Earbuds,Bluetooth Earbuds,Earbud Bluetooth,Ear Buds
Shenzhen Linx Technology Co., Ltd. , https://www.linxheadphone.com