Modified Type II Control State Information Reporting
AssigneeNokia Solutions and Networks Oy
InventorWolfgang ZIRWAS
Life of this patent
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Abstract
Modified type II control state information (CSI) reporting for achieving explicit CSI knowledge is provided. A method may be performed by providing, to a user equipment, a plurality of channel state information reference signals over a single beam and receiving channel state information from the user equipment. Explicit channel state information may be determined from a channel transfer function for some or all frequency subbands based on the received channel state information.
Claims20
A method performed at a network device, the method comprising:
- providing, to a user equipment, a plurality of channel state information reference signals over a single beam for a plurality of frequency subbands, wherein a frequency subband comprises a plurality of physical resource blocks, the physical resource blocks comprising a plurality of resource elements;
- receiving channel state information from the user equipment;
- and
- determining explicit channel state information from a channel transfer function for frequency subbands based on the received channel state information.
A method performed at a user equipment, the method comprising:
- receiving, from a network device, a plurality of channel state information reference signals over a single beam;
- reporting channel state information to the network device;
- and
- determining and reporting, to the network device, amplitude and phase on subband borders, which is reported separately from the channel state information.
A method performed at a network entity, the method comprising:
- providing, to a network device, a request for information on a capability of the network device related to explicit channel state information;
- and
- selecting a procedure according to feedback from the network device in response to the request and configuring the network entity for the selected procedure.
An apparatus, comprising:
- at least one processor;
- and
- at least one non-transitory memory storing instructions that, when executed with the at least one processor, cause the apparatus at least to:
- provide, to a user equipment, a plurality of channel state information reference signals over a single beam;
- receive channel state information from the user equipment;
- and
- determine explicit channel state information from a channel transfer function for frequency subbands based on the received channel state information.
An apparatus, comprising:
- at least one processor;
- and
- at least one non-transitory memory storing instructions that, when executed with the at least one processor, cause the apparatus at least to:
- receive, from a network device, a plurality of channel state information reference signals over a single beam;
- report channel state information to the network device;
- and
- determine and report, to the network device, amplitude and phase on subband borders, which is reported separately from the channel state information.
An apparatus, comprising:
- at least one processor;
- and
- at least one non-transitory memory storing instructions that, when executed with the at least one processor, cause the apparatus at least to:
- provide, to a network device, a request for information on a capability of the network device related to explicit channel state information;
- and
- select a procedure according to feedback from the network device in response to the request and configure the apparatus for the selected procedure.
Dependencies are inferred from the claim text.