UNISOC: The successful completion of the RedCap test will play its role in the implementation of the industry. News on January 4 (Nanshan) As a lightweight 5G technology, RedCap has attracted industry attention since its birth. RedCap is an important evolution direction of the cellular Internet of Things. It will further enhance the service capabilities of 5G in vertical industry markets and personal consumption markets, and promote the enrichment and scale promotion of application scenarios. The full name of RedCap is Reduced Capability , which means reduced ability . As the name suggests, it is to reduce or tailor the capabilities of 5G to meet the needs of medium- and high-speed IoT scenarios at a lower cost, thereby greatly broadening the application scenarios of 5G and promoting the ubiquitous Internet of Everything. As the leading 5G chip developer in mainland China, Unisoc is determined to forge ahead in the 5G era. It has previously completed a complete 5G technology and product portfolio layout from R15 to R16, and has become one of the world's chip suppliers supporting all 5G eMBB, uRLLC, and mMTC scenarios. With the freezing of the R17 standard, Unisoc s efforts in the RedCap field have also emerged one by one. After completing key performance testing in June last year, the 3GPP R17 standard was frozen. Among them, RedCap targets the three core business scenarios of wearable devices, industrial sensors and video surveillance. It is expected that the world will reach nearly 10 billion connections by 2030. The following July, the IMT-2020 5G Promotion Group took the lead in completing the formulation of RedCap key technologies and test standards, guiding the terminal and network equipment industries to quickly meet commercial conditions. It is understood that at the China 5G Development Conference in November last year, Xu Fei, Secretary General of the IMT-2020 (5G) Promotion Group and Deputy Director of the Mobile Communications Innovation Center of the China Academy of Information and Communications Technology, announced the results of the RedCap Internet of Things technology test. According to it, base stations and chips can already support the basic functions of RedCap, and the peak uplink and downlink rates and average user plane delay of some combinations can reach or approach the expected theoretical values. Ziguang Zhanrui is one of the participants. In October 2022, UNISOC successively completed China Mobile's first 5G R17 RedCap function and performance verification, and worked with ZTE to successfully complete the 5G R17 version of RedCap key technology laboratory verification and Beijing Huairou field performance test. Among them, in the joint test with China Mobile, based on the TDD 2.6GHz frequency band and the FDD 700MHz frequency band, the 5G RedCap single-user service rate reached theoretical expectations. On this basis, UNISOC also took the lead in completing the VoNR technology verification under the 5G R17 RedCap network. This was also the first time in China that the call service was successfully implemented in the RedCap test. In the cooperative test with ZTE, ZTE 5G NR base stations and UNISOC 5G R17 RedCap platform test terminals were used. Based on relevant specifications, the technical verification of the functions and performance of RedCap terminals such as cell access and parking, cell reselection and handover, coexistence of RedCap UE and Legacy UE, uplink and downlink peak rates and delays, and RedCap were completed. Verification of UE access and basic workflow, single user peak throughput, multi-point access and throughput, user plane delay, mobility test and other test contents. The successful testing of many chip manufacturers, including Unisoc, has laid the foundation for the verification of RedCap s underlying technical capabilities. As the leading 5G chip company in mainland China, Unisoc has played a leading role in its early layout and continuous investment in 5G, as well as its close tracking of the evolution of the 5G standard system and technological breakthroughs. Release of 5G RedCap White Paper After successfully completing a series of testing work organized by the IMT-2020 (5G) Promotion Group, UNISOC released a 5G RedCap White Paper , which comprehensively analyzed the standard evolution, technical points, and application scenarios of RedCap. From the white paper, we can see the contribution made by Unisoc in the RedCap standard discussion process. On the one hand, it is the highlight contribution of 3GPP standards. For example, Unisoc takes the lead in promoting the continued reduction of the cost of R17 RedCap. The main solution based on scaling factor (scaling factor) has won the support and co-signation of 14 companies, which has a positive and far-reaching impact on the establishment of the R18 low-end eRedCap project. UNISOC is also the company that provides the most complete memory cost analysis in the 3GPP R18 phase and is also one of the first companies to promote cost analysis of other components. In the end, with the active promotion of Unisoc, the cost and benefit of memory were written into the 3GPP research report. The other aspect is the standardized common contribution. For example, Unisoc was one of the first companies to propose the design principle of avoiding RedCap RF readjustment and adhered to this principle until the standard was completed. Regarding the maximum number of antennas for R17 RedCap, Unisoc and some terminal chip companies believe that one receiving antenna may be more advantageous in devices with limited size, and one MIMO layer can further reduce cost/power consumption. The final standard determines that R17 RedCap UE supports two or one receiving antenna. In addition, UNISOC has also participated in multiple CCSA RedCap standard projects and undertaken the drafting work. Regarding the application scenarios of RedCap, Ziguang Zhanrui also conducted a detailed analysis based on its understanding of the industry market for many years It is reported that the current mainstream module manufacturers in the industry have launched a variety of 5G modules based on Zhanrui 5G chips V510 and V516. UNISOC and its partners also launched a 5G industrial gateway, which uses 5G networks to seamlessly connect production equipment, further opening up design, procurement, warehousing, logistics and other links to meet the needs of equipment interconnection and remote interaction in industrial environments. With the freezing of the RedCap standard and the successful completion of related tests, the industry expects that RedCap will start the commercial phase this year. From the creation of commercial benchmark cases, to small batch applications, to mature implementation, RedCap still has a long way to go. UNISOC has deployed 5G to enter thousands of industries and successfully created a number of typical application cases. It is expected to continue to play an important role in the commercial implementation of RedCap in the future