# US 11,309,980 B2 · System for synthesizing signal of user equipment and method thereof > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,309,980 B2 - Document ID: US11309980B2 - Status: Granted - Kind: B2 - Application number: 17/028,786 - Filed: 2020-09-22 - Published: 2021-12-23 - Granted: 2022-04-19 - Earliest claimed: 2020-06-18 - Assignees: National Chiao Tung University - Applicants: National Chiao Tung University - Inventors: En Cheng Liou; Ta-Sung Lee; Chia-Hung Lin; Yu-Chien Lin - Web page: https://patentgrep.com/patent/US11309980B2 ## CPC - G01S 5/02528: {Simulating radio frequency fingerprints} - H04B 17/3912: {Simulation models, e.g. distribution of spectral power density or received signal strength indicator [RSSI] for a given geographic region} - H04B 17/3913: {Predictive models, e.g. based on neural network models} - H04W 24/06: Testing, {supervising or monitoring} using simulated traffic - H04W 24/10: Scheduling measurement reports {; Arrangements for measurement reports} - G01S: RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES - H04B: TRANSMISSION - H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72) ## Abstract A system for synthesizing signal of user equipment and a method thereof are provided. The system includes a physical channel modeler and a physical channel training module. The physical channel modeler receives geo information of a field under test of and a sparse real physical field channel feature to build a physical channel model. The physical channel modeler estimates a plurality of predefined positions of the geo information to obtain a plurality of simulated physical field channel features corresponding to the predefined positions. The physical channel training module receives and performs training on the geo information, the sparse real physical field channel feature and the simulated physical field channel features by using an AI algorithm to perform an inference of a fully real physical field channel feature. ## Claims ### Claim 1 A system for synthesizing signal of user equipment, comprising: a physical channel modeler configured to receive geographic information of a field under test and a sparse real physical field channel feature, to build a physical channel model and estimate a plurality of predefined positions of the geographic information by using the physical channel model, to obtain a plurality of simulated physical field channel features corresponding to the plurality of predefined positions, wherein the sparse real physical field channel feature comprises a plurality of real physical field channel features measured at a plurality of measure positions of the geographic information, respectively; and a physical channel training module connected to the physical channel modeler, and configured to receive the geographic information, the sparse real physical field channel feature and the simulated physical field channel feature, and perform training on the geographic information, the sparse real physical field channel feature and the simulated physical field channel feature by using an artificial intelligence algorithm, to perform an inference of fully real physical field channel feature covering the plurality of predefined positions and the plurality of measure positions. ### Claim 2 (depends on 1) The system according to claim 1, further comprising: a plurality of emulator units disposed at the plurality of measure positions in the field under test and connected to a telecommunication system under test, wherein the plurality of emulator units transmit signals to and receive signals from the telecommunication system under test, so as to provide the sparse real physical field channel feature to the physical channel modeler. ### Claim 3 (depends on 1) The system according to claim 1, further comprising: a geographic information fetch unit connected to the physical channel modeler and configured to fetch the geographic information and provide the geographic information to the physical channel modeler. ### Claim 4 (depends on 3) The system according to claim 3, wherein the geographic information fetch unit is a lidar configured to scan the field under test to obtain geographic information. ### Claim 5 (depends on 3) The system according to claim 3, further comprising: a geographic database, wherein the geographic information fetch unit is linked to the geographic database to obtain the geographic information from the geographic database. ### Claim 6 (depends on 1) The system according to claim 1, further comprising: a control unit connected to the physical channel modeler, the physical channel training module and the virtual user equipment scheduler, and configured to control at least one of operations of starting, ending and executing predefined processes or steps, and requesting report data, and allocate the number and positions of the plurality of virtual UEs required in the field under test; and a virtual user equipment scheduler configured to assign or modify dispatch, schedule, management and information of the resource blocks of the plurality virtual UEs based on the fully real physical field channel feature. ### Claim 7 (depends on 1) The system according to claim 1, wherein the physical channel training module comprises: a generator configured to perform an inference of the fully real physical field channel feature by using the artificial intelligence algorithm; a discriminator configured to judge reality of the fully real physical field channel feature, which is generated by the generator, by using another artificial intelligence algorithm, and perform adversarial training on the generator and the discriminator until the Nash Equilibrium is achieved. ### Claim 8 (depends on 1) The system according to claim 1, wherein the artificial intelligence algorithm is a convolution-neural-network-based algorithm. ### Claim 9 A method for synthesizing signal of user equipment, comprising: receiving geographic information of a field under test and a sparse real physical field channel feature to build a physical channel model, wherein the sparse real physical field channel feature comprises a plurality of real physical field channel features measured at a plurality of measure positions of the geographic information, respectively; estimating a plurality of predefined positions of the geographic information by using the physical channel model, to obtain a plurality of simulated physical field channel features corresponding to the plurality of predefined positions; and receiving the geographic information, the sparse real physical field channel feature and the simulated physical field channel features, and performing training on the geographic information, the sparse real physical field channel feature and the simulated physical field channel features by using an artificial intelligence (AI) algorithm, to perform an inference of a fully real physical field channel feature covering the plurality of predefined positions and the plurality of measure positions. ### Claim 10 (depends on 9) The method according to claim 9, wherein the step of performing the inference of the fully real physical field channel feature comprises: performing the inference of the fully real physical field channel feature by using the artificial intelligence (AI) algorithm; and judging reality of the fully real physical field channel feature, which is generated by the generator, by using another artificial intelligence (AI) algorithm, and performing adversarial training on the generator and the discriminator until the Nash Equilibrium is achieved. ### Claim 11 (depends on 9) The method according to claim 9, further comprising: allocating number and positions of the plurality of virtual UEs required in the field under test; and assigning or modifying dispatch, schedule, management and information of resource blocks of the plurality of virtual UEs based on the fully real physical field channel feature.