ENABLING PHASE TRACKING FOR A COMMUNICATION DEVICE
First Claim
Patent Images
1. 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 sequence of Orthogonal Frequency-Division Multiplexing (OFDM) pilot symbols for each of a plurality of spatial streams, wherein the OFDM pilot symbols conform to a rank-deficient pilot mapping matrix with at least one pair of identical OFDM pilot symbol sets; and
send each sequence of OFDM pilot symbols on a corresponding spatial stream during a training period.
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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.
12 Citations
40 Claims
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1. A communication device for enabling phase tracking, comprising:
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a processor; memory in electronic communication with the processor; instructions stored in the memory, the instructions being executable to; generate a sequence of Orthogonal Frequency-Division Multiplexing (OFDM) pilot symbols for each of a plurality of spatial streams, wherein the OFDM pilot symbols conform to a rank-deficient pilot mapping matrix with at least one pair of identical OFDM pilot symbol sets; and send each sequence of OFDM pilot symbols on a corresponding spatial stream during a training period. - View Dependent Claims (2, 6, 7, 8, 9, 11, 12)
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3-5. -5. (canceled)
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10. (canceled)
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13. (canceled)
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14. A communication device for tracking phase, comprising:
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a processor; memory in electronic communication with the processor; instructions stored in the memory, the instructions being executable to; receive during a training period a sequence of Orthogonal Frequency-Division Multiplexing (OFDM) pilot symbols on each of a plurality of spatial streams, wherein the OFDM pilot symbols conform to a rank-deficient pilot mapping matrix with at least one pair of identical OFDM pilot symbol sets; and determine a phase estimate based on the at least one pair of identical OFDM pilot symbol sets. - View Dependent Claims (15, 17, 20)
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- 16. (canceled)
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18-19. -19. (canceled)
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23. A method for enabling phase tracking, comprising:
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generating, on a communication device, a sequence of Orthogonal Frequency-Division Multiplexing (OFDM) pilot symbols for each of a plurality of spatial streams, wherein the OFDM pilot symbols conform to a rank-deficient pilot mapping matrix with at least one pair of identical OFDM pilot symbol sets; and sending each sequence of OFDM pilot symbols on a corresponding spatial stream during a training period. - View Dependent Claims (24, 25, 26, 27, 28, 29, 30)
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31. A method for tracking phase, comprising:
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receiving, by a communication device and during a training period, a sequence of Orthogonal Frequency-Division Multiplexing (OFDM) pilot symbols on each of a plurality of spatial streams, wherein the OFDM pilot symbols conform to a rank-deficient pilot mapping matrix with at least one pair of identical OFDM pilot symbol sets; and determining a phase estimate based on the at least one pair of identical OFDM pilot symbol sets. - View Dependent Claims (32, 33, 34, 35, 36)
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37. A non-transitory computer-readable medium having instructions thereon, the instructions comprising:
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code for causing a communication device to generate a sequence of Orthogonal Frequency-Division Multiplexing (OFDM) pilot symbols for each of a plurality of spatial streams, wherein the OFDM pilot symbols conform to a rank-deficient pilot mapping matrix with at least one pair of identical OFDM pilot symbol sets; and code for causing a communication device to send each sequence of OFDM pilot symbols on a corresponding spatial stream during a training period.
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38. A non-transitory computer-readable medium having instructions thereon, the instructions comprising:
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code for causing a communication device to receive during a training period a sequence of Orthogonal Frequency-Division Multiplexing (OFDM) pilot symbols on each of a plurality of spatial streams, wherein the OFDM pilot symbols conform to a rank-deficient pilot mapping matrix with at least one pair of identical OFDM pilot symbol sets; and code for causing a communication device to determine a phase estimate based on the at least one pair of identical OFDM pilot symbol sets.
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39. An apparatus for enabling phase tracking, comprising:
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means for generating a sequence of Orthogonal Frequency-Division Multiplexing (OFDM) pilot symbols for each of a plurality of spatial streams, wherein the OFDM pilot symbols conform to a rank-deficient pilot mapping matrix with at least one pair of identical OFDM pilot symbol sets; and means for sending each sequence of OFDM pilot symbols on a corresponding spatial stream during a training period.
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40. An apparatus for tracking phase, comprising:
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means for receiving during a training period a sequence of Orthogonal Frequency-Division Multiplexing (OFDM) pilot symbols on each of a plurality of spatial streams, wherein the OFDM pilot symbols conform to a rank-deficient pilot mapping matrix with at least one pair of identical OFDM pilot symbol sets; and means for determining a phase estimate based on the at least one pair of identical OFDM pilot symbol sets.
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Specification