8results about How to "Improve coverage quality" patented technology

The invention discloses a rate division multiple access communication network total rate optimization method and system, and belongs to the technical field of communication. The method comprises the following steps: constructing a downlink rate segmentation multiple access communication system model based on an intelligent reflecting surface; the communication system model comprises a base station, an intelligent reflecting surface and a user side; grouping users in the user side, and constructing a hierarchical rate segmentation multiple access model based on user grouping; the hierarchical rate segmentation multiple access model comprises a corresponding relation between the user group and information flow generated by the base station; and according to the hierarchical rate segmentation multiple access model and the intelligent reflecting surface, assisting downlink communication between the base station and the user side. According to the method and the device, the layered rate division multiple access model is constructed by grouping the users, and the system performance is improved by combining the intelligent reflecting surface passive beam forming and the rate division multiple access active beam forming, so that the problems of spectrum resource shortage and signal interference can be solved, and the spectrum efficiency is greatly improved.

The invention relates to an indoor communication quality enhancement method and device, computer equipment and a storage medium. The method comprises the following steps: acquiring region parameters of a to-be-enhanced signal region, wherein the region parameters comprise building information and user traffic information; based on the area parameters, determining a deployment strategy of the communication system in the to-be-enhanced signal area, and deploying the communication system based on the deployment strategy, the communication system comprising a communication device, a plurality of antenna units and an amplification module, the communication device comprising a device for receiving and transmitting signals, the plurality of antenna units forming an antenna array, a plurality of antenna units in the antenna array communicate in parallel, and the amplification module is used for amplifying signals of the antenna units; communicating over the communication system in response to an indication of the user equipment; acquiring communication quality data of the signal area to be enhanced; and adjusting configuration parameters of the communication system based on the communication quality data. By adopting the method, the indoor communication quality can be enhanced.

The invention discloses a Moore intelligent reflecting surface for realizing beam forming. The Moore intelligent reflecting surface is structurally composed of four layers of materials, wherein the first layer and the second layer are periodic metal pattern layers which have different rotational symmetry and are tightly attached, the third layer is a dielectric material isolation layer, and the fourth layer is a metal backboard layer. The Moore intelligent reflecting surface can reflect a vertical incident wave, surface impedance distribution can be adjusted by changing the style of the metal pattern layer, and beamforming of the reflected wave is achieved. By endowing the two layers of periodic metal patterns with different rotational symmetry, single-beam, two-beam and three-beam far-field directional diagrams can be formed; the two layers of metal patterns are mutually rotated along the central axis, so that continuous scanning adjustment can be carried out on the pitch angle of a reflected wave beam within the range of 0-60 degrees and the azimuth angle within the range of 0-360 degrees. The design does not need an active device, and compared with a beam forming mode of a traditional active device, the beam forming device has the advantages of being low in cost, low in power consumption, low in profile, high in reliability, not prone to breakdown and the like.

The utility model relates to the technical field of antennas, and provides an antenna for beautifying an exhaust pipe, which comprises an antenna component; the antenna housing is provided with an accommodating space, and the antenna component is arranged in the antenna housing; the base is arranged on the bottom surface of the antenna cover, and one side of the antenna component is arranged on the base; and the top seat is arranged on the top surface of the antenna housing, and the other side of the antenna component is arranged on the top seat. According to the technical scheme, the problems that in the prior art, an existing base station antenna is exposed outside, visual conflicts are formed with the surrounding environment, and the city attractiveness is affected are solved.

The invention discloses a method for coverage merging of co-construction and sharing sites, relates to the technical field of communication, and aims to solve the problem that the quality of a co-construction and sharing network is affected due to improper selection of coverage merging sites in the prior art. Comprising the following steps: S1, inputting station information of both co-construction and sharing parties, and selecting paired base station stations of both parties according to a station distance; s2, carrying out PRB utilization rate time sequence analysis and prediction according to the selected base station site; s3, screening is carried out according to the PRB utilization rate threshold, and paired base station sites meeting requirements are obtained; and S4, performing wireless site construction evaluation by adopting an AHP, and finally determining a coverage merging base station site. According to the co-construction and sharing site coverage merging method provided by the invention, through co-construction and sharing site coverage merging, network coverage and service quality can be effectively improved, and construction and operation costs are reduced at the same time.

This invention discloses a distributed beamforming method, system, and apparatus for low-Earth orbit satellites, comprising: acquiring ground user location information and satellites to be communicated with; calculating the transmission paths between multiple satellites and ground users and obtaining the superimposed signal of electromagnetic waves at the ground end; calculating the superimposed power distribution of the ground electromagnetic waves based on the superimposed signal; constructing an objective function that maximizes the average received power of all ground users and the fairness of ground users based on the calculated superimposed power distribution of the ground electromagnetic waves; calculating the optimal satellite and its corresponding initial transmission phase within the selectable set, indirectly controlling the transmission distance from the satellite to the ground end to control the final phase of the electromagnetic waves received by the receiver, thereby maximizing the overall power gain of multiple ground receiving terminals and the fairness among each individual ground user, providing ideal power gain regardless of the location of the ground user, and simultaneously covering multiple users.

The invention discloses a wide-axial-ratio circularly polarized patch antenna based on a hybrid electromagnetic coupling technology, and relates to the technical field of wireless communication. The antenna is composed of a probe, a radiation patch, a trapezoidal patch and a cavity. The radiation patch is located in the cavity, a radiation patch metal column is arranged in the center of the bottom of the radiation patch, the upper end of the radiation patch metal column is connected with the radiation patch, and the lower end of the radiation patch metal column is connected with the bottom of the cavity; the trapezoidal patch is arranged above the radiation patch, the middle part and the tail part of the trapezoidal patch are provided with trapezoidal patch metal columns, the upper ends of the trapezoidal patch metal columns are connected with the trapezoidal patch, and the lower ends of the trapezoidal patch metal columns penetrate through the bottom of the cavity; a feed structure is arranged below the bottom of the cavity, one end of the probe penetrates through the bottom of the cavity and is connected with the radiation patch, and the other end of the probe is connected with the feed structure. The antenna has a wide axial ratio bandwidth and a high gain, is simple in structure, is easy to process, and is suitable for a base station antenna in mobile communication.

The invention relates to the technical field of software testing, and particularly discloses a knowledge distillation-based large language model fine tuning and software testing method and system, and the method comprises a supervision fine tuning stage, a knowledge distillation stage and a reasoning stage. In the supervised fine tuning stage, taking the pre-trained large model as a backbone, inserting an LoRA low-rank adapter, and learning a structured unit test generation normal form under to-be-tested codes and demand conditions to obtain a student model; in the knowledge distillation stage, a teacher model is introduced, and soft target distillation, hard target supervision, Jensen-Shannon distillation and semantic keeping consistency regularization are jointly used as constraint conditions to train a student model; in the reasoning stage, the software code to be tested is tested based on the trained student model. According to the method, variation-sensitive and semantic-robust test generation can be realized under the constraint of actual engineering only by depending on supervised fine tuning and distillation.