Channel quality information feedback techniques
First Claim
1. User equipment (UE), comprising:
- a radio frequency (RF) receiver to receive a channel state information (CSI) reference signal (CSI-RS);
circuitry coupled to the RF receiver, the circuitry to derive a channel quality indicator (CQI) index for a frequency band of an orthogonal frequency-division multiple access (OFDMA) wireless communication system, the circuitry to derive the CQI index based on the CSI-RS and a CSI reference resource of a shared wireless downlink channel, a first three orthogonal frequency-division multiplexing (OFDM) symbols of the CSI reference resource to be occupied by control signals; and
an RF transmitter coupled to the circuitry, the RF transmitter to transmit electromagnetic signals representing the CQI index on a wireless uplink channel.
1 Assignment
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Accused Products
Abstract
Various embodiments are generally directed to improved channel quality information feedback techniques. In one embodiment, for example, an evolved node B (eNB) may comprise a processor circuit, a communication component for execution by the processor circuit to receive a channel quality index for a physical downlink shared channel (PDSCH), the channel quality index associated with a defined reference resource, and a selection component for execution by the processor circuit to select a modulation and coding scheme (MCS) for transmission over the PDSCH of user equipment (UE) data in one or more resource blocks, the selection component to compensate for a difference between a cell-specific reference signal (CRS) overhead of the defined reference resource and a CRS overhead of the one or more resource blocks when selecting the MCS. Other embodiments are described and claimed.
9 Citations
25 Claims
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1. User equipment (UE), comprising:
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a radio frequency (RF) receiver to receive a channel state information (CSI) reference signal (CSI-RS); circuitry coupled to the RF receiver, the circuitry to derive a channel quality indicator (CQI) index for a frequency band of an orthogonal frequency-division multiple access (OFDMA) wireless communication system, the circuitry to derive the CQI index based on the CSI-RS and a CSI reference resource of a shared wireless downlink channel, a first three orthogonal frequency-division multiplexing (OFDM) symbols of the CSI reference resource to be occupied by control signals; and an RF transmitter coupled to the circuitry, the RF transmitter to transmit electromagnetic signals representing the CQI index on a wireless uplink channel. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. User equipment (UE), comprising:
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a radio frequency (RF) receiver to receive a channel state information (CSI) reference signal (CSI-RS); circuitry coupled to the RF receiver, the circuitry to configure a channel state information (CSI) process to report a precoding matrix indicator (PMI), a rank indication (RI), and a channel quality indicator (CQI) index for an orthogonal frequency-division multiple access (OFDMA) frequency band, the circuitry to derive the CQI index based on the CSI-RS, a CSI interference measurement (CSI-IM) resource, and a CSI reference resource of a downlink shared channel, the circuitry to derive the CQI index based on an assumption that no resource elements of the CSI reference resource are allocated to an enhanced physical downlink control channel (EPDCCH) or a physical broadcast channel (PBCH); and an RF transmitter coupled to the circuitry, the RF transmitter to transmit the CQI index over a wireless uplink channel. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17)
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18. At least one non-transitory computer-readable storage medium comprising a set of instructions that, in response to being executed on user equipment (UE), cause the UE to:
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access a channel state information (CSI) reference signal (CSI-RS); derive a channel quality indicator (CQI) index for a frequency band of an orthogonal frequency-division multiple access (OFDMA) wireless communication system, the circuitry to derive the CQI index based on the CSI-RS and a CSI reference resource of a shared wireless downlink channel, a first three orthogonal frequency-division multiplexing (OFDM) symbols of the CSI reference resource to be occupied by control signals; and initiate transmission of electromagnetic signals representing the CQI index on a wireless uplink channel. - View Dependent Claims (19, 20, 21, 22, 23, 24, 25)
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Specification