| 摘要 |
<p>A method for establishing an emergency call between a user equipment within a radio coverage area and one of at least two points able to answer the call and each having a service zone within the radio coverage area, the method comprising:
invoking an emergency services call;
transmitting first location measurement signals for use in determining a first estimate of the position of the user equipment within the radio coverage area, wherein the first estimate has sufficient accuracy to identify the service zone of the at least two answering points that the user equipment lies within; and
transmitting second location measurement signals for use in determining a second estimate of the position of the user equipment within the radio coverage area, wherein the second estimate is more accurate than the first estimate.</p> |
