Channel state information estimation and channel information reporting
First Claim
1. A method of wireless communication comprising:
- receiving, at a user equipment (UE) during a symbol period, at least one phase noise compensation reference signal (PC-RS) and at least one channel state information reference signal (CSI-RS);
determining a first channel information indication and a second channel information indication, wherein the first channel information indication is based at least in part on both the CSI-RS and the PC-RS, and wherein the second channel information indication is based at least in part on the CSI-RS; and
transmitting a channel information message to a base station, the channel information message comprising a phase noise corrected channel measurement in the first channel information indication and a non-phase noise corrected channel measurement in the second channel information indication.
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Accused Products
Abstract
Methods, systems, and devices for wireless communication are described. A base station may transmit a phase noise correction reference signal (PC-RS) and a channel state information reference signal (CSI-RS) during a symbol period of a subframe. A user equipment (UE) may identify a first channel information using the PC-RS and the CSI-RS. The UE may transmit a channel information message to the base station that includes the first channel information. The first channel information may include a phase noise corrected channel measurement. The UE may the CSI-RS during the symbol period. Channel and phase noise estimates may be generated using a joint estimation based on the CSI-RS. The CSI-RS may be repeated periodically. In some cases, the UE may additionally or alternatively receive pilot tones that may include PC-RSs. The joint estimation may be further based on the pilot tones.
16 Citations
28 Claims
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1. A method of wireless communication comprising:
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receiving, at a user equipment (UE) during a symbol period, at least one phase noise compensation reference signal (PC-RS) and at least one channel state information reference signal (CSI-RS); determining a first channel information indication and a second channel information indication, wherein the first channel information indication is based at least in part on both the CSI-RS and the PC-RS, and wherein the second channel information indication is based at least in part on the CSI-RS; and transmitting a channel information message to a base station, the channel information message comprising a phase noise corrected channel measurement in the first channel information indication and a non-phase noise corrected channel measurement in the second channel information indication. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. A method of wireless communication comprising:
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transmitting, to a user equipment (UE) during a symbol period, at least one phase noise compensation reference signal (PC-RS) and at least one channel state information reference signal (CSI-RS); and receiving a channel information message comprising a phase noise corrected channel measurement in a first channel information indication and a non-phase noise corrected channel measurement in a second channel information indication, wherein the first channel information indication is based at least in part on the CSI-RS and the PC-RS, and wherein the second channel information indication is based at least in part on the CSI-RS. - View Dependent Claims (20, 21, 22, 23, 24)
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25. An apparatus for wireless communication, comprising:
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a processor; memory in electronic communication with the processor; and instructions stored in the memory and operable, when executed by the processor, to cause the apparatus to; receive, at a user equipment (UE) during a symbol period, at least one phase noise compensation reference signal (PC-RS) and at least one channel state information reference signal (CSI-RS); determine each of a first channel information indication and a second channel information indication, wherein the first channel information indication is based at least in part on both the CSI-RS and the PC-RS, and wherein the second channel information indication is based at least in part on the CSI-RS; and transmit a channel information message to a base station, the channel information message comprising a phase noise corrected channel measurement in the first channel information indication and a non-phase noise corrected channel measurement in the second channel information indication. - View Dependent Claims (26)
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27. An apparatus for wireless communication, comprising:
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a processor; memory in electronic communication with the processor; and instructions stored in the memory and operable, when executed by the processor, to cause the apparatus to; transmit, to a user equipment (UE) during a symbol period, at least one phase noise compensation reference signal (PC-RS) and at least one channel state information reference signal (CSI-RS); and receive a channel information message comprising a phase noise corrected channel measurement in a first channel information indication and a non-phase noise corrected channel measurement in a second channel information indication, wherein the first channel information indication is based at least in part on the CSI-RS and the PC-RS, and wherein the second channel information indication is based at least in part on the CSI-RS. - View Dependent Claims (28)
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Specification