On November 17, US time, the 87th meeting of RAN1 (Wireless Physical Layer) of 3GPP of International Wireless Standardization Organization was held in Las Vegas, USA, to discuss the 5G short code scheme. The three protagonists are still the PolarCode (Polarization Code) scheme promoted by China. Qualcomm mainly promotes the LDPC solution, and France mainly promotes the Turbo2.0 solution. In the end, Huawei's Polar solution, from the United States to promote LDPC, France's main push Turbo2.0 two major competitors to win, become the 5G control channel eMBB scene coding scheme, and LDPC becomes the data channel's uplink and downlink short code scheme. The 5G short code coding scheme shares data channel coding and control channel coding. At the meeting held in Lisbon, Portugal on October 14 this year, the US LDPC program was identified as a 5G medium long code encoding scheme. It is reported that around the competition for the future 5G standards, the two coding conferences have become the most fierce confrontation in the history of wireless communications, and it can be described as a "war" without smoke. The representatives of all parties revolve around their own plans. You come and go, and they don’t give each other. The meetings for several days are discussed in the early morning of the next day, and the latest one will actually open until 1:30 in the morning. According to industry sources, the Lisbon conference, despite the numerous supporters of Huawei's solutions, ultimately won the US LDPC program supported by more important manufacturers. LDPC is led by Qualcomm, behind giants such as Intel, Samsung, Nokia and Verizon. Behind Huawei's Polar solution are more Chinese manufacturers, ZTE, Spreadtrum, Xiaomi, OPPO, vivo, Alibaba, China Mobile, China Telecom, China Unicom and so on. It is reported that after the loss of the Lisbon conference, the Polar side carried out reflections and summaries, adjusted the plan, and sent more than 50 representatives to participate in the US conference. The battle for the 5G standard has so far become a contest between China and the United States. The French program has not been distributed to the cake because of its few supporters. The Turbo 2.0 code that monopolizes the 3G and 4G era codes will enter history. As of now, Huawei still maintains a low profile and has not expressed any opinions on the 5G short code results. Coding and modulation, known as the crown of communication technology, embodies the overall strength of a national communication science foundation theory. According to a professional communication website, the Polar Code was first proposed by Professor Erdal Arikan of the University of Birken in Turkey in 2008. The paper theoretically proved for the first time that the binary input is symmetrically discrete and has no memory. Under the channel, the polarization code can "reach" the Shannon capacity, and has a channel coding technique with practical linear complexity coding and decoding capabilities. According to the above report, the core of the polarization code structure is processed by "channel polarization". On the encoding side, the coding method is used to make each subchannel exhibit different reliability. When the code length continues to increase, some channels will tend to For a perfect channel with a capacity close to 1 (no error), another portion of the channel tends to a purely noisy channel with a capacity close to zero, choosing to transmit information directly on a channel with a capacity close to 1 to approximate the channel capacity. On the decoding side, the polarized channel can be decoded by a simple successive interference cancellation decoding method to obtain performance close to the maximum natural decoding with a lower implementation complexity. In the communications industry, the battle for standards is the battle for the highest voice. Once the standard is established, it will have a huge impact on the global communications industry. Independent telecom analyst Fu Liang said in an interview with a reporter that the victory is the emergence of two years of research and development investment by Huawei and ZTE. In the future, more 5G technologies will have the shadow of Huawei and ZTE. "The two companies have cloned and imitated from the 2G era, and have a certain right to speak in the 3G era. The 4G era is actively participating, and the 5G era is the leader." Fu Liang said that the 5G standard has the shadow of Chinese manufacturers, and the United States will repel China Telecom in the future. The device is ridiculous. According to industry estimates, the 5G standard will begin to form in 2018, and 5G will begin commercial use worldwide in 2020. Prior to this, some of the 5G application and implementation methods will form a consensus and prepare for the next standard.
ZFRS Thermo Amor Silicone Coated Fiberglass Fire Sleeve
Product introduce:
ZFRS Thermo Amor Silicone Coated Fiberglass Fire Sleeve is made of non-alkali glass fiber or high bulked glass fiber woven with organic high temperature resistant iron oxide red silicone by high temperature treatment process. Wire fireproof Heat Resistant Fiberglass Sleeve the advantage with Fireproof, flame resistant, heat insulation, heat preservation; Insulation, anti-aging; Anti-acid, anti-alkali; Heat resistance and fireproof silicone rubber Fire resistant fiberglass sleeve for hdraulic hose it can protect the covered from the melting metal splash and strong heat source.
Product characters
Size/inner diameter: 4.5mm-150mm(1/5"-6")
Product image:
Fire Sleeves,Fire Sleeve For Hose,Fire Resistant Cable Sleeves,Fire Sleeves For Cables,Fire Sleeve for Hydraulic Hose Protective,Fire Resistant Fighting Fire Sleevele Sleeves,Fire Sleeves For Cables Dong Guan KE YU New Material Technology co.,LTD , https://www.insulationtubing.com
Product application
a) High temperature work environment: iron and steel plant, smelting plant, glassworks, rial transit, large transfer equipment.
b) Hydraulic hose, cable, flexible metal tubing, corrugated pipe and all kinds of pipeline for high temperature protection in all kinds of bad environment.
Colour: Typically in iron oxide red and black,special colours accept customized.
Working temperature: Continues working at -75 degrees Celsius -260degrees Celsius ,short time exposure to degrees Celsius
Rate voltage: 7kv--25 kv
Characters: High tempt. & flame resistant,insulation,anti-aging,avoiding splashing of the molten iron,abrasion resistant,water proof,oil proof,acid and alkali resistant.
