neighbour cell measurement

Andreas.Eversberg Andreas.Eversberg at versatel.de
Thu Jul 14 10:40:41 UTC 2011


hi,
 
i would like to commit my well tested neighbour cell measurement code,
as well as the improved cell selection / re-selection process soon. with
it, it is possible to move with the mobile phone while beeing in idle
mode (no call). it tracks neighbour cells and switches if a better cell
is detected. i found and fixed many bug issues in mobility management
and cell selection process. i did allot of driving tests.
 
in order to do that, the neighbour cell measurement code for layer1 is
required. this code must be reviewed first. i splitted it in three
patches:
 
 
neigh_getset.patch
 
[layer1] Adding rffe_set_gain() and rffe_get_gain() to get/set computed
gain.
 
rffe_compute_gain() is the new name for rffe_set_gain(). I needed to
change this, to solve the name collision with the rffe_set_gain()
function, which actually sets the absolute gain.
 
rffe_get_gain() will now read the absolute gain which has been computed
by rffe_compute_gain() or set by rffe_set_gain().
 
 
neigh_l23.patch
 
[layer23] Adding neighbour cell measurement to L1CTL interface.
(layer23)
 
 
neigh_l1.patch
 
[layer1] Adding neighbour cell measurement code to layer1.
 
When listening to BCCH, layer1 may measure the power level of neighbour
cells. A list of neighbour cell frequencies need to be sent to layer1.
After the measurement is done, the results are indicated to layer23.
 
 
andreas
 
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