miles12
2012-07-14, 03:32 AM
Why do we need Antenna Hopping?
During a call connection, a burst can easily be lost due to fading dip or interference for that particular frequency. The coding and interleaving scheme in GSM is constructed so that loss of a single burst has minimal influence on the speech quality. The probability that several bursts within a speech frame have poor signal quality is reduced if the bursts are transmitted on different paths. This can be done using antenna hopping. With antenna hopping, transmit diversity is introduced by altering transmit antenna between bursts.
Benefits of Antenna Hopping:-
More robust radio environment
Improved signaling performance
Possibility to give subscribers a more uniform speech quality
The advantage of this feature is more evident with low codec rates in GRPS/EGPRS.
Pls dont for get to add reputation if like...
BR//
MS
During a call connection, a burst can easily be lost due to fading dip or interference for that particular frequency. The coding and interleaving scheme in GSM is constructed so that loss of a single burst has minimal influence on the speech quality. The probability that several bursts within a speech frame have poor signal quality is reduced if the bursts are transmitted on different paths. This can be done using antenna hopping. With antenna hopping, transmit diversity is introduced by altering transmit antenna between bursts.
Benefits of Antenna Hopping:-
More robust radio environment
Improved signaling performance
Possibility to give subscribers a more uniform speech quality
The advantage of this feature is more evident with low codec rates in GRPS/EGPRS.
Pls dont for get to add reputation if like...
BR//
MS