Data detection for codes with non-uniform spreading factors
AssigneeInterDigital Technology Corporation
InventorsYounglok Kim, Jung-Lin Pan, Ariela Zeira, Alexander Reznik
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Abstract
A plurality of communication signals is received. Each communication signal has an associated code. At least two of the communication signals have a different spreading factor. The associated codes have a scrambling code period. A total system response matrix has blocks. Each block has one dimension of a length M and another dimension of a length based on in part M and the spreading factor of each communication. M is based on the scrambling code period. Data of the received plurality of communication signals is received using the constructed system response matrix.
Claims16
A method for use in a wireless communication apparatus, the method comprising:
- receiving a plurality of communication signals that include an associated code, wherein at least one of the plurality of communication signals has a different spreading factor from another of the plurality of communication signals and wherein the associated code includes a scrambling code period;
- constructing a total system response matrix having blocks, each block having one dimension of a length M and another dimension of a length based in part on M and the spreading factor of each communication signal, wherein M is based at least in part on the scrambling code period of each communication signal;
- and
- using the constructed system response matrix to estimate data of the received plurality of communication signals.
A wireless communication apparatus comprising:
- a receiver configured to receive a plurality of communication signals that include an associated code, wherein at least one of the plurality of communication signals has a different spreading factor from another of the plurality of communication signals and wherein the associated code includes a scrambling code period;
- and
- a processor configured to construct a total system response matrix having blocks, each block having one dimension of a length M and another dimension of a length based in part on M and the spreading factor of each communication signal, wherein M is based at least in part on the scrambling code period of each communication signal;
- wherein the wireless communication apparatus is configured to use the constructed system response matrix to estimate data of the received plurality of communication signals.
Dependencies are inferred from the claim text.