Wireless communication systems and methods for contiguously addressable memory enabled multiple processor based multiple user detection

A communications device for detecting user transmitted symbols encoded in spread spectrum waveforms (hereinafter “user waveforms”) comprising

• a first memory,
• a set of one or more first processing elements, coupled to the first memory, the set of first processing elements generating a matrix (hereinafter “R-matrix”) representative of cross correlations among user waveforms and storing the R-matrix to contiguous locations within the first memory,
• a second processing element coupled with the first memory,
• the second processing element accessing the R-matrix from said contiguous locations within the first memory and generating symbol estimates as a composition of the R-matrix,
• a second memory coupled with the set of first processing elements and a third processing element,
• the third processing element generating a matrix (hereinafter “gamma-matrix”) representative of a correlation between a code associated with one user and those associated with one or more other users,
• the third processing element placing the gamma-matrix in the second memory
• wherein the set of first processing elements generate the R-matrix as a composition of the gamma-matrix.

A communications device for detecting user transmitted symbols encoded in spread spectrum waveforms (hereinafter “user waveforms”) comprising

• a first memory,
• a set of one or more first processing elements coupled to the first memory, the set of first processing elements generating a matrix (hereinafter “R-matrix”) representative of cross correlations among user waveforms and storing the R-matrix to contiguous locations within the first memory,
• a second processing element coupled with the first memory,
• the second processing element accessing the R-matrix from contiguous locations within the first memory and generating symbol estimates as a composition of the R-matrix,
• a host controller coupled to each of the set of first processing elements, wherein the host controller generates a partitioning of the R-matrix, that partitioning divides the R-matrix into one or more portions based on a number of users and a number of available processing elements,
• the host controller assigns to each first processing element a portion of the R-matrix to generate according to the partitioning,
• each of the first processing elements generating the assigned portion of the R-matrix according to the partitioning,
• the host controller re-calculates the partitioning of the R-matrix when a user is added or removed from the spread spectrum system, and assigns a new portion of the R-matrix to each first processing element according to that new partitioning.

A communications device for detecting user transmitted symbols encoded in spread spectrum waveforms (hereinafter “user waveforms”) comprising

• a first memory,
• a set of one or more first processing elements, coupled to a direct memory access engine (hereinafter “DMA engine”), the set of first processing elements generating a matrix (hereinafter “R-matrix”) representative of cross correlations among user waveforms, the DMA engine coupled with the first memory,
• the DMA engine storing the R-matrix to contiguous locations within the first memory,
• a second processing element coupled with the first memory,
• the second processing element accessing the R-matrix from contignous locations within the first memory and generating symbol estimates as a composition of the R-matrix,
• a host controller coupled to each of the set of first processing elements, the host controller generating a partitioning of the R-matrix, that partitioning divides the R-matrix into one or more portions based on a number of users and a number of available processing elements,
• the host controller assigning to each first processing element a portion of the R-matrix to generate according to the partitioning,
• each first processing element generating the assigned portion of the R-matrix according to the partitioning,
• the host re-calculating the partitioning of the R-matrix when a user is added or removed from the spread spectrum system, and assigning a new portion of the R-matrix to each first processing element according to that new partitioning.

A communications device for detecting user transmitted symbols encoded in spread spectrum waveforms (hereinafter “user waveforms”) comprising

• a first memory,
• a set of one or more first processing elements, coupled to a direct memory access engine (hereinafter “DMA engine”), the set of first processing elements generating a matrix (hereinafter “R-matrix”) representative of cross correlations among user waveforms, the DMA engine coupled with the first memory,
• the DMA engine storing the R-matrix to contiguous locations within the first memory,
• a second processing element coupled with the first memory,
• the second processing element accessing the R-matrix from contiguous locations within the first memory and generating symbol estimates as a composition of the R-matrix,
• a second memory coupled with the set of first processing elements and a third processing element,
• the third processing element generating a matrix (hereinafter “gamma-matrix”) representative of a correlation between a code associated with one user and those associated with one or more other users,
• the third processing element placing the gamma-matrix in the second memory
• wherein the gamma-matrix is a composition of a complex conjugate of the code associated with one user and a complex conjugate of the codes associated with one or more other users.

A communications device for detecting user transmitted symbols encoded in spread spectrum waveforms (hereinafter “user waveforms”) comprising

• a first memory,
• a set of one or more first processing elements, coupled to a direct memory access engine (hereinafter “DMA engine”), the set of first processing elements generating a matrix (hereinafter “R-matrix”) representative of cross correlations among user waveforms, the DMA engine coupled with the first memory,
• the DMA engine storing the R-matrix to contiguous locations within the first memory,
• a second processing element coupled with the first memory,
• the second processing element accessing the R-matrix from contiguous locations within the first memory and generating symbol estimates as a composition of the R-matrix,
• a second memory coupled with the set of first processing elements and a third processing element,
• the third processing element generating a matrix (hereinafter “gamma-matrix”) representative of a correlation between a code associated with one user and those associated with one or more other users,
• the third processing element placing the gamma-matrix in the second memory
• wherein the set of first processing elements generate the R-matrix as a composition of the gamma-matrix.

A communications device for detecting user transmitted symbols encoded in spread spectrum waveforms (hereinafter “user waveforms”) comprising

• a first memory,
• a set of one or more first processing elements, coupled to the first memory, the set of first processing elements generating a matrix (hereinafter “R-matrix”) representative of cross correlations among user waveforms and storing that R-matrix to contiguous locations within the first memory,
• a second processing element coupled to the first memory, the second processing element accessing R-matrix from said contiguous locations within the first memory and generating symbol estimates as a composition of the R-matrix,
• a second memory coupled with the set of first processing elements and a third processing element,
• the third processing element generating a matrix (hereinafter “gamma-matrix”) representative of a correlation between a code associated with one user and those associated with one or more other users,
• wherein the third processing element places the gamma-matrix in the second memory,
• wherein the third processing element updates the gamma-matrix as users are added or removed from the spread spectrum system.

A communications device for detecting user transmitted symbols encoded in spread spectrum waveforms (hereinafter “user waveforms”) comprising

• a first memory,
• a set of one or more first processing elements, coupled to the first memory, the set of first processing elements generating a matrix (hereinafter “R-matrix”) representative of cross correlations among user waveforms and storing that R-matrix to contiguous locations within the first memory,
• a second processing element coupled to the first memory, the second processing element accessing R-matrix from said contiguous locations within the first memory and generating symbol estimates as a composition of the R-matrix,
• a second memory coupled with the set of first processing elements and a third processing element,
• the third processing element generating a matrix (hereinafter “gamma-matrix”) representative of a correlation between a code associated with one user and those associated with one or more other users,
• said third processing element placing the gamma-matrix in the second memory,
• wherein the set of first processing elements generate the R-matrix as a composition of the gamma-matrix.