| 摘要 |
PROBLEM TO BE SOLVED: To provide a messaging protocol to start a positioning function, independently of the current call processing state of a mobile object. SOLUTION: When a mobile object is in a mobile object idle state, in a system access state or in a traffic channel state, a serving base station or the mobile object transmits a positioning request. A messaging protocol describes how a positioning function is started, when the mobile object is resident in any of various call processing states and used to identify a messaging required between a serving base station and the mobile object. Then the mobile object transmits a positioning trial message to the base station. The positioning trial message is formatted according to positioning parameter data and includes at least one positioning probe with a mobile object identification number or a probe number. The base station discriminates the position of the mobile object on the basis of the positioning trial. |
