Methods and Means for Embedding Information Content in the Pilot Symbols of Wireless CDMA Systems
Original Publication Date: 2003-Mar-14
Included in the Prior Art Database: 2003-Mar-14
Wireless CDMA systems are composed of data-based and control-based physical channels. Control-based information is used to improve the radio link quality and includes for example pilot and power control fields… Enough control information must be available without sacrificing reliability of its transmission or amount of data information to be delivered. Such signalling is often quite limited and further resource to transmit additional information would improve the performance of the overall system. In this article a method is proposed to use control fields, and in particular ‘Pilot’ fields, to embed additional feedback and/or control information. Such a method can be used for both uplink and/or downlink transmissions.