POSITION LOCATION IN MEMORY LIMITED ENVIRONMENT

• Main Authors: SIH, GILBERT C, ZOU, QIUZHEN, KANG, INYUP, GARDNER, WILLIAM, AGRAWAL, AVNEESH
• Format: Patent
• Language: English; French
• Published: 16.03.2000
• Edition: 7
• Subjects: ANALOGOUS ARRANGEMENTS USING OTHER WAVES; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES; MEASURING; PHYSICS; RADIO DIRECTION-FINDING; RADIO NAVIGATION; TESTING; WIRELESS COMMUNICATIONS NETWORKS

The present invention is a novel and improved method and apparatus for performing position location in wireless communications system. One embodime nt comprises a method for performing position location in a wireless communication system using a set of signals transmitted from a set of satellites including the steps of receiving signal samples, rotating an acquisition code by a first rotation amount yielding a rotated acquisition code, despreading said signal samples using rotated acquisition code yieldin g despread data, accumulating said despread data over a first duration yieldin g partially accumulated data, rotating said partially accumulated data by a second rotation amount yielding rotated data and accumulating said rotated data.