Patent application number | Description | Published |
20090157342 | METHOD AND APPARATUS OF USING DRIVE TEST DATA FOR PROPAGATION MODEL CALIBRATION - A method using drive test data for propagation model calibration includes: step | 06-18-2009 |
20120014272 | Communication Control Server, Base Station, Terminal and Coordinated Service System and Method - A communication control server of the present invention comprises: a network interface; a memory unit in which a cluster information table and a channel state information table are stored; a channel state information recovery unit acquiring a feedback message of a user equipment within a cluster from a base station via a network interface, wherein the cluster information table holds a joint codebook shared by the base stations within the cluster, wherein the joint codebook holds an identifier for determining channel state information and a distribution of the channel state information, and wherein the feedback message includes an identifier corresponding to the channel state information of the user equipment. | 01-19-2012 |
20120094710 | DEVICE AND METHOD FOR BASE STATIONS DYNAMIC CLUSTERING IN MOBILE COMMUNICATION - Disclosed are a communication control device, a communication control method and the system thereof, which provide efficient multi-base station joint services in a mobile communication system using dynamic clustering. Optimal base station clustering is chosen according to the communication state between a terminal and each base station. The communication control device connects with multiple base stations through a network, and clusters the multiple base stations dynamically so that the clustered multiple base stations can provide services for the mobile terminal in union. The communication control device comprises: an interface, connecting with multiple base stations, receiving channel state information related to the mobile terminal from each base station; a memory unit, storing the channel state information of the mobile terminal received from the interface; a control unit, clustering each base station dynamically according to the channel state information of the mobile terminal stored in the memory unit. | 04-19-2012 |
20130185036 | METHOD AND APPARATUS OF USING DRIVE TEST DATA FOR PROPAGATION MODEL CALIBRATION - A method using drive test data for propagation model calibration includes: step 1, obtaining original drive test data; step 2, selecting the data from the drive test data according to predefined conditions as effective drive test data; and step 3, extracting the effective drive test data to form a data file used for propagation model calibration. An apparatus using drive test data for propagation model calibration includes: a drive test data obtaining module, configured to obtain the drive test data in the regions to be calibrated; an effective drive test data generation module, configured to generate effective drive test data from the drive test data according to predefined conditions; and a data file generation module, configured to extract the effective drive test data to form a data file used for propagation model calibration. The present invention utilizes drive test data of existing networks to largely decrease the CW test work and reduce the network building cost. It is believed that the calibrated model can relatively accurately reflect the propagation characteristics in the field. Furthermore, base stations can be optimally allocated. | 07-18-2013 |
20140219150 | BASE STATION IN CELLULAR NETWORK SYSTEM AND SLEEP CONTROL METHOD FOR BASE STATION - It is provided a base station included in a cellular network system together with other neighboring base stations, which provides information service to a user terminal. The base station comprising: a determination unit for comparing states of traffic currently provided by said base station and other neighboring base stations and determining whether said base station has the lowest traffic; an information transmission unit for sending a sleep request and a handover request for handing over the user terminal associated with said base station to one of the neighboring base stations in case where the determination unit determines that the traffic currently provided by the base station is lowest; a receiving unit for receiving feedback information sent from the one of the neighboring base stations after admission control; and an executing unit for executing sleep decision after receiving handover request permitting information from the neighboring base station. | 08-07-2014 |
20140256329 | HETEROGENEOUS CELLULAR NETWORK - Provided is a micro base station to be used in a heterogeneous cellular network. The micro base station has resources including frequency bands and time slots and being available for a user to use. The heterogeneous cellular network includes a plurality of base stations including a macro base station and the micro base station. The micro base station includes: an information acquiring part configured to acquire configuration information and load information of the micro base station, and to acquire configuration information and load information of a neighboring base station adjacent to the micro base station from the neighboring base station; and a resource selection part configured to select a part of the resources from the resources to provide the selected part of the resources to the user based on the configuration information and the load information of the micro base station and the neighboring base station. | 09-11-2014 |
20140256330 | RENEWABLE ENERGY BASE STATION AND COVERAGE ADJUSTMENT METHOD THEREFOR, AND WIRELESS CELLULAR SYSTEM - It is provided a renewable energy base station, which is used in a wireless cellular system, including: an adjustment request determining part for determining whether an adjustment to a coverage area is required; an adjustment request transceiver in case where it is determined that the adjustment to the coverage area is required, sending a coverage area adjustment request to neighboring base stations in the wireless cellular system, and receiving an adjustment request response from the neighboring base stations; an adjustment request responding part for determining whether the coverage area adjustment request from the one of the neighboring base stations is allowed in case where receiving the coverage area adjustment request from one of the neighboring base stations; and a response transmitter for sending the adjustment request response to the neighboring base stations based on a result of the determination made by the adjustment request responding part. | 09-11-2014 |
20140295839 | HYPER-CELLULAR COMMUNICATION SYSTEM - Provided are a hyper-cellular communication system and a hyper-cellular communication method for associating a user to a macro cell base station or a micro cell base station. The hyper-cellular communication system includes: a gateway, which includes a user quality of service classification index table including two parameters, namely user mobility and signaling overhead; and a resource optimization function unit for making decisions on base station association and wireless resource allocation by referring to the quality of service classification index table. | 10-02-2014 |
20140297792 | SERVER, DATA CACHING METHOD, AND COMMUNICATION SYSTEM - It is provided are a server including: a storage module for storing original files and characteristics of the original files; an encoding module for encoding the original files stored in the storage module to generate encoded symbols; an information acquisition module for communicating with at least one transmission node and acquiring state information from the at least one transmission node; a control module for calculating a number of the encoded symbols to be sent to the at least one transmission node for caching based on the characteristics of the original files stored in the storage module and the state information of the at least one transmission node acquired by the information acquisition module; and a communication module for sending the encoded symbols to the at least one transmission node based on the number of the encoded symbols calculated by the control module. | 10-02-2014 |