# US 2014/0192932 A1 · Method and System for Implementing a Single Weight Spatial Multiplexing (SM) MIMO System > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2014/0192932 A1 - Document ID: US20140192932A1 - Status: Published application - Kind: A1 - Application number: 14/096,667 - Filed: 2013-12-04 - Published: 2014-07-10 - Earliest claimed: 2004-10-06 - Assignees: Broadcom Corporation - Applicants: Broadcom Corporation - Inventors: Mark KENT; Vinko ERCEG; Uri M. LANDAU; Peter VAN ROOYEN; Peter ROUX - Web page: https://patentgrep.com/patent/US20140192932A1 ## CPC - H04B 7/0413: MIMO systems - H04B 7/0697: {using spatial multiplexing} - H04B 7/0857: {using maximum ratio combining techniques, e.g. signal-to- interference ratio [SIR], received signal strenght indication [RSS]} - H04B: TRANSMISSION ## Abstract Certain aspects of the method may comprise generating at least one control signal that may be utilized to control at least a first of a plurality of received spatially multiplexed communication signals. An amplitude and/or phase of the first received spatially multiplexed communication signal may be adjusted via the generated control signal so that the amplitude and/or phase of the first received spatially multiplexed communication signal may be equivalent to an amplitude and/or phase of a second received spatially multiplexed communication signal. The amplitude of the first received spatially multiplexed communication signal is adjusted within the processing path used to process the first received spatially multiplexed communication signal. ## Claims ### Claim 1 A method, comprising: adjusting a phase of a first spatially multiplexed communication signal so that the phase of the first spatially multiplexed communication signal is equivalent to a phase of a second spatially multiplexed communication signal; combining the first and second spatially multiplexed communication signals to form a combined spatially multiplexed communication signal; and generating a control signal based on the combined communication signal. ### Claim 2 (depends on 1) The method of claim 1, further comprising generating a channel estimate using the first and second spatially multiplexed communication signals. ### Claim 3 (depends on 2) The method of claim 2, wherein the phase of the first spatially multiplexed communication signal is adjusted based on the generated channel estimate. ### Claim 4 (depends on 1) The method of claim 1, further comprising continuously adjusting the phase do the first spatially multiplexed communication signal. ### Claim 5 (depends on 1) The method of claim 1, further comprising adjusting the phase of the first spatially multiplexed communication signal at discrete intervals. ### Claim 6 (depends on 1) The method of claim 1, further comprising adjusting an amplitude of the first spatially multiplexed communication signal to be equivalent to the amplitude of the second spatially multiplexed communication signal. ### Claim 7 (depends on 1) The method of claim 1, wherein the channel estimate is also based on a third spatially multiplexed communication signal. ### Claim 8 (depends on 1) The method of claim 1, further comprising receiving a plurality of spatially multiplexed communication signals. ### Claim 9 (depends on 8) The method of claim 8, wherein the channel estimate is a baseband combined channel estimate for the plurality of spatially multiplexed communication signals. ### Claim 10 (depends on 1) The method of claim 1, wherein the control signal is generated utilizing an optimization algorithm comprising at least one of a maximum signal-to-noise ratio (SNR) algorithm, a maximum signal-to-interference-and-noise ratio (SINR) algorithm, and a minimum bit error rate (BER) algorithm. ### Claim 11 A system, comprising: one or more processors and/or circuits configured to: adjust a phase of a first spatially multiplexed communication signal so that the phase of the first spatially multiplexed communication signal is equivalent to a phase of a second spatially multiplexed communication signal; combine the first and second spatially multiplexed communication signals to form a combined spatially multiplexed communication signal; and generate a control signal based on the combined communication signal. ### Claim 12 (depends on 11) The system of claim 11, wherein the one or more processors and/or circuits are further configured to generate a channel estimate using the first and second spatially multiplexed communication signals. ### Claim 13 (depends on 12) The system of claim 12, wherein the one or more processors and/or circuits are further configured to adjust the phase of the first spatially multiplexed communication signal is based on the generated channel estimate. ### Claim 14 (depends on 11) The system of claim 11, wherein the one or more processors and/or circuits are further configured to continuously adjust the phase do the first spatially multiplexed communication signal. ### Claim 15 (depends on 11) The system of claim 11, wherein the one or more processors and/or circuits are further configured to adjust the phase of the first spatially multiplexed communication signal at discrete intervals. ### Claim 16 (depends on 11) The system of claim 11, wherein the one or more processors and/or circuits are further configured to further adjust an amplitude of the first spatially multiplexed communication signal to be equivalent to the amplitude of the second spatially multiplexed communication signal. ### Claim 17 (depends on 11) The system of claim 11, wherein the one or more processors and/or circuits are further configured to generate the channel estimate based on a third spatially multiplexed communication signal. ### Claim 18 (depends on 11) The system of claim 11, wherein the one or more processors and/or circuits are further configured to receive a plurality of spatially multiplexed communication signals. ### Claim 19 (depends on 18) The system of claim 18, wherein the one or more processors and/or circuits are further configured to generate the channel estimate as a baseband combined channel estimate for the plurality of spatially multiplexed communication signals. ### Claim 20 A non-transitory computer-readable medium configured to store computer instructions that, when executed by a computer, cause the computer to perform steps comprising: adjusting a phase of a first spatially multiplexed communication signal so that the phase of the first spatially multiplexed communication signal is equivalent to a phase of a second spatially multiplexed communication signal; combining the first and second spatially multiplexed communication signals to form a combined spatially multiplexed communication signal; and generating a control signal based on the combined communication signal.