A controller (120), in response to receiving a request for a group call (201) targeting a group (101), allocates at least one power adjustment channel to the group call (202) and sends identification of the at least one power adjustment channel to at least some of the subscriber units in the group (203)....http://www.google.es/patents/US6181685?utm_source=gb-gplus-sharePatente US6181685 - Method and apparatus for group calls in a wireless CDMA communication system
Method and apparatus for group calls in a wireless CDMA communication system
