Process for assigning a finger of a rake receiver in idle mode, and apparatus for carrying out the process

摘要

Process of a finger assignment in a rake receiver for a wireless communication device comprising the following steps: —detection (21) of a pilot (CPICH) and the comparison of its energy according to a first threshold value; —detection (22), on the basis of said first threshold value, of a first significant path; —assignment (23) of said first significant path to a first finger of the rake receiver; —determination (24) of an observation window; —application (25) of a second threshold value, distinct and lower than said first value, for the detection of secondary paths; —rake fingers assignment to secondary paths detected.

主权项

1. A method, performed by a wireless communication device, of limiting finger assignment in a rake receiver to fewer than the number of multi-path signals received by the device, comprising:
detecting a first pilot signal; comparing the energy of the first pilot signal to a first threshold value; detecting, on the basis of the first threshold value, a first significant path for a wireless signal; assigning the first significant path to a first finger of the rake receiver; determining only a single observation window that is fixed around the first significant path, wherein the observation window has a predetermined length and starts at a predetermined duration prior to the first significant path; within the observation window, applying a second threshold value, distinct from and lower than the first threshold value, to detect secondary paths of the first pilot signal; and assigning any detected secondary paths of the first pilot signal that are within the observation window and at least the second threshold value to fingers of the rake receiver; and determining to not detect any secondary paths of the first pilot signal that fall outside the observation window.