Efficient and consistent wireless downlink channel configuration
AssigneeWi-LAN, Inc.
InventorsGene Marsh, Srikanth Gummadi, William Burchill, Michael Wengler
Life of this patent
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Abstract
A method of wireless communication including a base station transmitting a preamble including information indicating a sector identifier and an antenna port value. The base station further transmits a pilot sequence, wherein the pilot sequence and the location of the pilot sequence are based on the sector identifier and on the antenna port value. A base station configured to perform the method is also disclosed. A corresponding subscriber station configured to receive the preamble and pilot sequence is also disclosed, as well as a subscriber station method.
Claims20
A method comprising:
- transmitting, by a base station, an orthogonal frequency division multiple access (OFDM) signal, for use by a client station in cell search, the OFDM signal including a primary signal, a secondary signal and a pilot signal, the primary signal having a first pseudo random sequence, the secondary signal having a second pseudo random sequence and the pilot signal having a third pseudo random sequence;
- wherein:
- the first pseudo random sequence of the primary signal and the second pseudo random sequence of the secondary signal are based on an identity of a cell associated with the base station;
- and
- the third pseudo random sequence of the pilot signal is based on an antenna configuration identification and the identity of the cell associated with the base station.
A base station comprising:
- a processor;
- and
- a transmitter operably coupled to the processor;
- the processor and transmitter configured to transmit an orthogonal frequency division multiple access (OFDM) signal, for use by a client station in cell search, the OFDM signal including a primary signal, a secondary signal and a pilot signal, the primary signal having a first pseudo random sequence, the secondary signal having a second pseudo random sequence and the pilot signal having a third pseudo random sequence;
- wherein:
- the first pseudo random sequence of the primary signal and the second pseudo random sequence of the secondary signal are based on an identity of a cell associated with the base station;
- and
- the third pseudo random sequence of the pilot signal is based on an antenna configuration identification and the identity of the cell associated with the base station.
Dependencies are inferred from the claim text.