Measurement and feedback calculation for wireless communication network
AssigneeIntel Corporation
InventorsHuaning Niu, Yi Hsuan, Ayelet Doron
Life of this patent
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Abstract
A method for performing measurement by a radio apparatus is presented. In one embodiment, the method includes determining raw measurements (e.g., a channel estimation and a noise variance estimation) of a subband and determining a rank indicator (RI) without requiring a precoding matrix indicator (PMI) search. The method includes calculating, based at least on the raw measurements, a mean instantaneous capacity (MIC) for the subband and determining a channel quality indicator (CQI) and a PMI based at least on the MIC. In one embodiment, the method uses subband-based measurements for performing feedback/measurement.
Claims20
A method for performing measurement in a wireless communication network, the method comprising:
- determining, by a network device, a first plurality of measurements including a channel estimation and a noise variance estimation of a first subband;
- determining a rank indicator (RI) without requiring a precoding matrix indicator (PMI) search;
- calculating, based at least on the first plurality of measurement, a mean instantaneous capacity (MIC) for the first subband;
- and
- determining a channel quality indicator (CQI) and a PMI based at least on the MIC.
A network system comprising:
- a processor;
- a memory coupled to the processor;
- and
- a communication device coupled to the processor to communicate wirelessly over multiple sub-channels in an orthogonal frequency division multiple access (OFDMA) wireless network, wherein the communication device is operable to
- perform raw measurements of a first subband;
- select a rank indicator (RI) independent from feedback modes and without requiring a precoding matrix indicator (PMI) search;
- calculate, based at least on the raw measurements, a mean instantaneous capacity (MIC) for the first subband;
- and
- determining a channel quality indicator (CQI) and a precoding matrix indicator (PMI) based at least on the MIC.
A method in a wireless communication network, the method comprising:
- determining raw measurements including a channel estimation and a noise variance estimation of each of one or more subbands;
- calculating, based on a transmission mode, a mean instantaneous capacity (MIC) for each of the one or more subbands, the transmission mode being one of eight or more supported transmission modes;
- and
- determining, based at least the transmission mode and the MIC, a channel quality indicator (CQI) for each of the one or more subbands.
Dependencies are inferred from the claim text.