Patent ID: 7142828
Filing Date: 2006-11-28
Classification: H04B,H04L,H04W

Abstract:
1. An apparatus for sending from a base station to terminals in a telecommunications system, said apparatus comprising at least first and second sending channels or first and second groups of sending channels adapted to send on a plurality of adjacent carrier frequencies in spatial diversity mode so that the same information may be sent by the first and second sending channels or the first and second groups of sending channels on the same carrier frequency or frequencies, wherein the first sending channel or the first group of sending channels uses a first set of adjacent carrier frequencies, the second sending channel or the second group of sending channels uses a second set of adjacent carrier frequencies, each of the first and second sets of adjacent carrier frequencies includes at least one common carrier frequency for sending in spatial diversity mode, the first set of the adjacent carrier frequencies further includes at least one different carrier frequency for sending without spatial diversity or with a lower degree of spatial diversity, and the different carrier frequency is not included in the second set of adjacent carrier frequencies.