Abstract
In a cellular network supporting both legacy standard-compliant mobile terminals and next generation standard-compliant mobile terminals, both legacy reference signals and next generation reference signals are supported. A method of operation of a MIMO transmitter compliant with both standards includes: defining a matrix of resource blocks within an information channel of the cellular network, wherein each resource block corresponds to a region of subcarriers of a transmission timeslot at a given frequency subband; assigning a first set of reference signals (RSs) for the legacy standard-compliant mobile terminals to resource blocks at specific locations within the matrix to be transmitted by the MIMO transmitter, the specific locations being defined by the legacy standard; and assigning a second set of RSs for the next-generation standard-compliant mobile terminals to other resource blocks within the matrix to be transmitted by the MIMO transmitter.
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4G | 20/06/2013 | ISLD-201306-004 | RESEARCH IN MOTION LTD |
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US2012087442A1 | 4G | 20/06/2013 | ISLD-201306-004 | RESEARCH IN MOTION LTD |
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US8315225B2 | 4G | 20/06/2013 | ISLD-201306-004 | RESEARCH IN MOTION LTD |
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