What in Link Adaptation in HSDPA

HSDPA uses link adaptation, which means the way of transmission is changed according to the quality of the channel conditions.

If a user is in favourable conditions, for example close to the nearest antenna tower, this user will be assigned a high data rate.

When the user moves into worse channel conditions, for example far away from the antenna tower, the transmission parameters will be changed accordingly and thus the data rate will be decreased.