点击查看[《2022WAIC-参赛指南中文版》]( https://competition-oss.datafountain.cn/files-datafountain-cn/uploads/images/competitions/234/2022WAIC-%E5%8F%82%E8%B5%9B%E6%8C%87%E5%8D%97%E4%B8%AD%E6%96%87%E7%89%88-534784.pdf)[《2022WAIC-Competition Guide》](https://competition-oss.datafountain.cn/files-datafountain-cn/uploads/images/competitions/234/2022WAIC-Competition%C2%A0Guide-363202.pdf) #### Competition Background 5G+AI has become the most popular research area for the development of wireless communications. Competition becomes an unprecedented way to promote the integration of 5G and AI by involving academic and industrial R&D to solve typical wireless problems with AI/ML tools. The 5G+AI Work Group of IMT-2020 (5G) Promotion Group is committed to conduct research on the requirements, theories and technologies of deep integration of 5G and AI, and promote the international standardization and industrialization process of 5G and AI integration. Wireless Communication AI Competition (WAIC) is hosted by The 5G+AI Work Group of IMT-2020 (5G) Promotion Group for researchers to contribute on the integration of wireless communications and AI, with the theme of **AI Enlightens Wireless Communication**. A continue influence is expected for the WAIC to attract academic and industry contribution to the integration of 5G and AI. #### Competition Task Name Competition Task Name：**AI-based Joint Channel Estimation and Channel State Information Feedback** Organizer：CAICT，OPPO #### Competition Task Background Accurate channel estimation (CE) and effective channel state information (CSI) feedback are the basic conditions to ensure the performance of wireless communication system. These two important topics were separately designed and studied in previous competitions, but will be jointly considered in the 3rd Wireless Communication AI Competition. Track “AI-based Joint Channel Estimation and Channel State Information Feedback” mainly focuses on joint design of channel estimation and CSI feedback, and constructs the corresponding competitive theme. The deep integration of wireless communication and artificial intelligence (AI) has become an important direction for the construction of future wireless communication systems. In the evolution stage of 5G, utilizing AI to solve the specific modularization problems of the wireless communication system by following the existing architecture has become a popular research topic. For instance, many researches from academic and industry area have improved the performance of channel estimation and CSI feedback separately by introducing AI technology. At the same time, focusing on the impact of AI on the future communication systems, researchers have once again obtained the opportunity to relax or even break some inherent constraints, in order to realize a new generation of wireless communication systems which oriented to intelligence and built on intelligence. Reconstructing the modular design of the wireless communication systems can be carefully considered, such as AI-based end-to-end communication system design, joint design of channel estimation and feedback, joint design of data scheduling and detection, etc. This competition takes the received pilot signal as input and optimal CSI feedback as target output. The participants will have great degree of freedom to explore joint design solutions for AI-based channel estimation and channel state information feedback, in order to achieve good final performance. #### Competition Task In this competition, we consider to make use of the information compression, nonlinear recovery and end-to-end optimization capability of AI, to takes the received pilot signal (CSI-RS) on small number of time-frequency resources at user equipment (UE) side as the input, and strive to realize the recovery of channel state information as accurately as possible at base station (BS) side, so that enabling the construction of high-quality wireless communication link. Specifically, the characteristics of this competition are as follows: a. Following the practical requirements of wireless communication system, the competition focuses on the improvement of CSI feedback performance based on received pilot signal with limited number. b. The solution design with two different pilot densities (sufficient and insufficient pilot) are required, and the performance will be evaluated separately. c. In the traditional communication module partitioning, channel estimation and CSI feedback are independently designed and optimized. With the empowerment of AI, there are actually a variety of potential implementation methods to improve the overall performance, such as based on integrated design or modular design. Participants can freely select the most appropriate implementation method to achieve the best performance. #### Competition Schedule The competition will be held online, and technology sharing and awarding will be carried out offline. Contestants should register, team up, and submit the model for evaluation on the official platform DataFountain. After the online competition, the top ten teams or individuals whose submitted models have been reviewed need to participate in the seminar and attend the award ceremony. The schedule is as follows: **July 25, 2022:** The Competition tasks are released, contestants can log on to the official website for registering. **August 1, 2022:** The data is released. Contestants can log in to the official website to download the data set. At the same time, the competition officially enters the evaluation stage. Players can submit the model files online to the competition platform. Each team can submit up to 5 times a day. The evaluation system will automatically evaluate the score. **September 25, 2022 12:00 (Beijing time):** Deadline for registration and team formation. **September 28, 2022 12:00 (Beijing time):** The evaluation platform is closed, and the list is locked. **September-October 31, 2022:** After reviewing the models of the top ten teams, the teams will be awarded the first, second, third prize and the winning prize in descending order of the evaluation results. The winning team must participate in the seminar and the award ceremony. Teams that do not participate will abandon the game by default. Note: After receiving the notification from the organizing committee, if the top ten teams fail to submit their materials or abandon the game in time, the organizing committee will notify other teams to submit review materials based on the ranking. **November, 2022[to be confirmed]:** Seminar and award ceremony. Note: if the time is changed due to force majeure or other factors, the organizing committee will notify the winning team as soon as possible. If the winning team is from outside of China, online access is recommended for participating in the seminar and the award ceremony. #### Irregularities If the participating team has the following or other major irregularities, the qualifications and results of the competition can be cancelled after the discussion of competition organizing committee, and the list of winning teams will be postponed sequentially. a. Serious violation of competition rules, b. Cheating by using multiple accounts, colluding, plagiarizing others’ codes, etc., c. Use of external data without permission（Direct or indirect use of external datasets are not allowed） d. Other major violations. #### Bonus |Prize|Amount|Team number| |:--:|:--:|:--:| |Golden prize|300,000 RMB| 1 team| |Silver prize|50,000 RMB (per team)|2 teams| |Bronze prize|20,000 RMB (per team) |3 teams| |Winning prize|10,000 RMB (per team) |4 teams| Note 1 – the award can be settled in US dollars according to the exchange rate on the settlement date. Note 2 – the individual income tax or other forms of tax on the bonus will be borne by the winners, and will be withheld and paid by the organizer of the competition. The participating teams shall be responsible for the distribution and distribution of the bonus among their members, and the organizer will not be held responsible for this. #### Competition Rules **Participants**：The competition is open to all the people around the world, regardless of age or nationality. All colleges and universities, scientific research institutions, enterprises, maker teams, individuals, etc. can log on to the official website to register for the competition. Employees of China Academy of Information and Communications Technology, Guangdong OPPO Mobile Telecommunications Corp., Ltd，vivo Mobile Communication Co., Ltd, Huawei Technologies Co., Ltd and affiliated units of above can participate the competition but cannot win prizes, and will not occupy the prize quota (i.e. if the team is in the top 10 of the rank after the rank is locked, the team will not be awarded, nor will it occupy the award quota. The team can participate in sharing activities. The winning team will be ranked in sequence except for this team). **Registration requirements**：Each person can only participate in one team (1-5 team member(s) per team) for each track. All team members must provide basic personal information and pass the real-name certification when registering the competition. The team formation mus.t be completed before the deadline. Once the formation of the team is completed, team members cannot quit from the team. **Team up conditions**：In order to ensure that each team has a relatively equal opportunity for submission, the total number of submissions of all members in a team must no be larger than 5 times of the number of days open for evaluation. **Submission of works**： Contestants can submit up to 5 works per day on the competition platform, and the evaluation system will automatically evaluate the score. Entries must guarantee originality, do not violate any relevant laws of the People’s Republic of China, and do not infringe any third-party intellectual property rights or other rights. Once discovered or submitted and verified by the right holder (within 1 month after the publishing of final winner list of the competition), the committee will cancel its competition results and deal with it seriously. **Winning conditions**：The top 10 teams on the list at the end of the online evaluation will be the winning teams. If any team quits the competition (the committee failed to contact any member of the team for three consecutive days according to the contact information provided by the contestants, or the team took the initiative to submit to the committee to quit the competition ), the list of winners will be filled with following teams by sequence. Contestants need to cooperate with the committee to verify the validity and authenticity of the submitted competition works, and at the same time check the correctness of the works by themselves, and submit them after confirming that they are correct. The committee is not responsible for making changes and adjustments to the submitted competition works. **Fair competition**：Participants are not allowed to use rule loopholes or technical loopholes to improve their rankings outside the scope of the designated assessment technical ability, and it is forbidden to copy other people’s works, exchange answers, and use multiple IDs in the competition. The committee will cancel its competition results and deal with it seriously. **Organization statement**：The committee reserves the right to adjust and modify the rules of the competition, the right to determine and dispose of cheating in the competition, and the right to withdraw or refuse the award of the participating team that affects the organization and fairness. **Competition data**：The committee authorizes participants to use the provided data to conduct model training for the designated contest. Participants are not allowed to use the data for any commercial purposes. If it is used for scientific research, please indicate the relevant data provider. **Intellectual property rights of works**：The intellectual property rights of the works (including but not limited to algorithms, models, etc.) belong to the contestants. The committee can use the works, works-related materials, and participating team information for promotional materials and related publications, e.g. designated and authorized media releases, official website browsing and downloads, exhibitions (including touring exhibitions) and other activities, under the consent of the contestants. The organizers of the competition have the priority of cooperation. **Notification and communication**：The committee will invite teams to participate in offline sharing, awards ceremony and other activities through the contact information reserved by the participating teams. If the participating team does not reply within 3 days after the above-mentioned related notice is issued, it will be deemed to have automatically given up the corresponding opportunity, and the organizer has the right to replace other participating teams in order. #### Rights and Responsibilities The committee has the right to judge and dispose of cheating in the competition. The organizing committee reserves the right to modify the submission deadline, defense date and awards date of the competition works. The organizing committee reserves the right to suspend or terminate the competition under special conditions. The organizing committee reserves the right to withdraw or refuse awards to participating teams that affect the organization and fairness of the competition. In case of data update, review code update, cheating check and other reasons, the committee has the right to re-evaluate the results of the competition and update the rankings. The committee reserves the right to adjust and modify the rules of the competition. The organizers of the competition have the final right to interpret the competition. #### Discussion and Sharing using Wechat - Official WeChat Group: 2022 WAIC-AI-based Joint Channel Estimation and Channel State Information Feedback ![image.png](https://competition-oss.datafountain.cn/files-datafountain-cn/uploads/admin/editor/2022-08-01/image-733911.png) - Official WeChat Account: (Continue to release contest-related information) ![image.png](https://competition-oss.datafountain.cn/files-datafountain-cn/uploads/admin/editor/2022-07-18/image-257219.png) #### Organization

Host:	IMT-2020(5G) Promotion Group 5G+AI Work Group
Organizer:	China Academy of Information and Communications Technology, Guangdong OPPO Mobile Telecommunications Corp., Ltd vivo Mobile Communication Co., Ltd., Huawei Technologies Co., Ltd
Secretariat:	China Academy of Information and Communications Technology Guangdong OPPO Mobile Telecommunications Corp., Ltd National Mobile Communications Research Laboratory of Southeast University
Platform:	DataFountain

#### Committee **Chairman:**

Zhiqin Wang	Vice President of CAICT, Chair of IMT-2020(5G) Promotion Group
Ning Yang	Head of the OPPO Standard and Research Department
Fei Qin	President of the vivo Communications Research Institute
Zukang Shen	Head of Huawei Standard Patent Department
Shi Jin	Vice President of Southeast University

**Vice Chairman:** Leader and Deputy-Leader organizations of IMT-2020(5G) Promotion Group 5G+AI： Xiaofeng Liu ，Jia Shen ，Liang Liu， Xiaobo Wu. **Committee member:** (List is sorted by the first letter of the name)

Chao Wang	Associate Professor of Tongji University
Bo Ai	Professor of Xidian University
Chungang Yang	Professor of Beijing Jiaotong University
Tao Yang	associate professor of Fudan University
Yong Xiao	Professor of Huazhong University of Science and Technology
Lingyang Song	Professor of Peking University
Li Chen	Associate Professor of University of Science and Technology of China
Caijun Zhong	Professor of Zhejiang University
Yunjian Jia	Professor of Chongqing University
Bin Xia	Professor of Shanghai Jiaotong University
Jing Guo	Special researcher of Beijing Institute of Technology
Qin Huang	Professor of Beihang University
Mugen Peng	Professor of Beijing University of Posts and Telecommunications
Jie Zeng	Senior Engineer of Tsinghua University