Enabling phase tracking for a communication device
AssigneeQUALCOMM Incorporated
InventorsVincent Knowles Jones, IV, Hemanth Sampath, Didier Johannes Richard Van Nee
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Abstract
A communication device for enabling phase tracking is described. The communication device includes a processor and instructions stored in memory. The communication device generates a plurality of pilot symbols. The pilot symbols conform to a rank-deficient pilot mapping matrix. The communication device also transmits the plurality of pilot symbols.
Claims65
A communication device for enabling phase tracking, comprising:
- a processor;
- memory in electronic communication with the processor;
- instructions stored in the memory, the instructions being executable to:
- generate a plurality of pilot symbols, wherein the pilot symbols conform to a rank-deficient pilot mapping matrix that has less than full rank and enables comparing a phase of a repeated pilot symbol set to a phase of an original pilot symbol set to determine a phase estimate;
- and
- transmit the plurality of pilot symbols during a training period.
A communication device for tracking phase, comprising:
- a processor;
- memory in electronic communication with the processor;
- instructions stored in the memory, the instructions being executable to:
- receive a plurality of pilot symbols from a sending communication device during a training period, wherein the pilot symbols conform to a rank-deficient pilot mapping matrix that has less than full rank;
- compare a phase of a repeated pilot symbol set to a phase of an original pilot symbol set to determine a phase estimate;
- estimate a channel based on the phase estimate and the pilot symbols;
- and
- receive data from the sending communication device using the channel estimate.
A method for enabling phase tracking, comprising:
- generating, on a communication device, a plurality of pilot symbols, wherein the pilot symbols conform to a rank-deficient pilot mapping matrix that has less than full rank and enables comparing a phase of a repeated pilot symbol set to a phase of an original pilot symbol set to determine a phase estimate;
- and
- transmitting the plurality of pilot symbols during a training period.
A method for tracking phase, comprising:
- receiving, by a communication device, a plurality of pilot symbols from a sending communication device during a training period, wherein the pilot symbols conform to a rank-deficient pilot mapping matrix that has less than full rank;
- comparing, by the communication device, a phase of a repeated pilot symbol set to a phase of an original pilot symbol set to determine a phase estimate;
- estimating a channel based on the phase estimate and the pilot symbols;
- and
- receiving data from the sending communication device using the channel estimate.
A computer-program product for enabling phase tracking comprising a non-transitory tangible computer-readable medium having instructions thereon, the instructions comprising:
- code for causing a communication device to generate a plurality of pilot symbols, wherein the pilot symbols conform to a rank-deficient pilot mapping matrix that has less than full rank and enables comparing a phase of a repeated pilot symbol set to a phase of an original pilot symbol set to determine a phase estimate;
- and
- code for causing the communication device to transmit the plurality of pilot symbols during a training period.
A computer-program product for tracking phase comprising a non-transitory tangible computer-readable medium having instructions thereon, the instructions comprising:
- code for causing a communication device to receive a plurality of pilot symbols from a sending communication device during a training period, wherein the pilot symbols conform to a rank-deficient pilot mapping matrix that has less than full rank;
- code for causing the communication device to compare a phase of a repeated pilot symbol set to a phase of an original pilot symbol set to determine a phase estimate;
- code for causing the communication device to estimate a channel based on the phase estimate and the pilot symbols;
- and
- code for causing the communication device to receive data from the sending communication device using the channel estimate.
An apparatus for enabling phase tracking, comprising:
- means for generating a plurality of pilot symbols, wherein the pilot symbols conform to a rank-deficient pilot mapping matrix that has less than full rank and enables comparing a phase of a repeated pilot symbol set to a phase of an original pilot symbol set to determine a phase estimate;
- and
- means for transmitting the plurality of pilot symbols during a training period.
An apparatus for tracking phase, comprising:
- means for receiving a plurality of pilot symbols from a sending communication device during a training period, wherein the pilot symbols conform to a rank-deficient pilot mapping matrix that has less than full rank;
- means for comparing a phase of a repeated pilot symbol set to a phase of an original pilot symbol set to determine a phase estimate;
- means for estimating a channel based on the phase estimate and the pilot symbols;
- and
- means for receiving data from the sending communication device using the channel estimate.
Dependencies are inferred from the claim text.