QUASI CO-LOCATION IDENTIFICATION OF REFERENCE SYMBOL PORTS FOR COORDINATED MULTI-POINT COMMUNICATION SYSTEMS
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Abstract
Methods and apparatuses indicate and identify quasi co-located reference signal ports. A method of identifying by a UE includes identifying, from downlink control information, a CSI-RS port that is quasi co-located with a DM-RS port assigned to the UE. The method includes identifying large scale properties for the assigned DM-RS port based on large scale properties for the CSI-RS port. The method includes performing channel estimation and/or time/frequency synchronization using the identified large scale properties for the DM-RS port. Another method for identifying by a UE includes identifying, from downlink control information, a CRS port that is quasi co-located with a CSI-RS port configured for the UE. The method includes identifying large scale properties for the configured CSI-RS port based on large scale properties for the CRS port. The method includes performing channel estimation and/or time/frequency synchronization using the identified large scale properties for the CSI-RS port.
45 Citations
44 Claims
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1-30. -30. (canceled)
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31. A method for receiving reference signals by an user equipment (UE), the method comprising:
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receiving channel state information reference signal (CSI-RS) configuration information including a CSI-RS configuration identifier (ID), a resource configuration, a subframe configuration, and quasi co-location (QCL) cell-specific reference signal (CRS) information; and receiving a CSI-RS and a CRS corresponding to the CSI-RS configuration information based on the CSI-RS configuration information, wherein the QCL CRS information indicates the CRS corresponding to the CSI-RS configuration information that is quasi co-located with the CSI-RS corresponding to the CSI-RS configuration information. - View Dependent Claims (32, 33, 34, 35, 36, 37)
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38. An apparatus for receiving reference signals by an user equipment (UE), the apparatus comprising:
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a controller; and receiver processing circuitry configured to; receive channel state information reference signal (CSI-RS) configuration information including a CSI-RS configuration identifier (ID), a resource configuration, a subframe configuration, and quasi co-location (QCL) cell-specific reference signal (CRS) information; and receive a CSI-RS and a CRS corresponding to the CSI-RS configuration information based on the CSI-RS configuration information, wherein the QCL CRS information indicates the CRS corresponding to the CSI-RS configuration information that is quasi co-located with the CSI-RS corresponding to the CSI-RS configuration information. - View Dependent Claims (39, 40, 41, 42, 43, 44)
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Specification