65results about How to "Control transmit power" patented technology

A sum of transmission powers for all channels for transmissions from a base station to mobile stations is controlled to constant. Specifically, the transmission power for a high speed and high capacity shared channel is controlled such that a sum of transmission powers for individual channels for individual mobile stations, and the shared channel is always constant. With this constitution, an interference wave power from neighboring cells becomes constant, an average data transfer rate of the shared channel becomes constant, a prediction precision for a wait time for sending / receiving data increases, a lower limit for an actual data transfer rate becomes high, and the number of users in a service quality assurance type service increases. Additionally, when the number of individual channels in use is low, the transmission power for shared channel can increase, and the transmission rate increases and the time decreases when a best effort type service is provided.

Interference that occurs during wireless communication may be managed through the use of fractional reuse and other techniques. In some aspects fractional reuse may relate to HARQ interlaces, portions of a timeslot, frequency spectrum, and spreading codes. Interference may be managed through the use of a transmit power profile and / or an attenuation profile. Interference also may be managed through the use of power management-related techniques.

The invention discloses a method for improving the performance of cell edge users by using a multi-objective genetic algorithm, and relates to the field of communication. The method for improving the performance of the cell edge users by using the multi-objective genetic algorithm can reduce the number of edge users to the greatest extent and greatly improve the service quality and the satisfaction degree of the users. The method comprises the following steps: enabling a base station to judge whether a user is a cell edge user or not according to measurement reports of the user; enabling the base station to determine the geographical positions of the edge users in coverage; enabling the base station to determine the base station which is in the vicinity of a cell edge user set according to the geographical positions of the edge users and the geographical position of the base station; enabling the base station to exchange information with the neighboring base station through X2; and enabling the base station to generate a coverage adjusting strategy through the multi-objective genetic algorithm according to the obtained information, and adjusting the activation and the closing of an RRU (radio remote unit), the transmission power and the declination angle and the azimuth angle of an antenna to change the coverage, thereby ensuring that users in the inter-cell overlapping region are as few as possible.

The invention discloses a data transfer and control method in mobile communication, which builds an operation route in advance; the invention comprises the following steps: a network control device decides time reference information for a wireless transfer channel, and then the operation data from network side and the decided time reference information are transmitted to a base station through a share channel; the base station transmits the operation data from the network control device to user device through the wireless transfer channel included in the pre-set operation route according to the received time reference information. The invention also discloses a data transfer and control system in mobile communication. The invention provides the interior maintained time reference information of each wireless transfer channel to the base station; and then the base station transmits the operation data to the user device respectively through each wireless transfer channel according to thetime reference information of each wireless transfer channel; in this way, the invention can guarantee the time requirement for the wireless transfer channel in the process of data transfer.