Methods, terminal device, network devices and apparatuses for interference measurement
A method of interference measurement includes performing interference measurement with interference measurement resource. The interference measurement resource may be a subset of resources for reference signal (RS). Measurements for the RS in the NR system are improved.
1. A method of interference measurement, comprising:
receiving configuration information of a plurality of Channel state information-Reference signal (CSI-RS) resources, wherein the plurality of CSI-RS resources comprises a first CSI-RS resource for interference measurement and a second CSI-RS resource for tracking;
performing interference measurement with the first CSI-RS resource, wherein the first CSI-RS resource corresponds to a subset of a plurality of reference signals; and
transmitting a CSI feedback based on the first CSI-RS resource for interference measurement and not based on the second CSI-RS resource for tracking.
2. The method of claim 1 , wherein the plurality of reference signals comprises one or more of:
a channel state information-reference signal;
a demodulation reference signal; and
a sounding reference signal.
3. The method of claim 1 , wherein
the configuration information indicates a density and a number of symbols associated with the first CSI-RS resource,
the density is less than or equal to 1, and
the performing the interference measurement comprises measuring the first CSI-RS resource.
4. A method performed by a network device of transmitting interference measurement configuration information, the method comprising:
transmitting configuration information of a plurality of Channel state information-Reference signal (CSI-RS) resources, wherein the plurality of CSI-RS resources comprises a first CSI-RS resource for interference measurement and a second CSI-RS resource for tracking, and
receiving a CSI feedback based on the first CSI-RS resource for interference measurement, wherein the CSI feedback is not based on the first CSI-RS resource for tracking.
5. The method of claim 4 , wherein
the configuration information indicates a zero power channel state information-reference signal (ZP CSI-RS) based interference measurement; or
the configuration information indicates a non-zero power channel state information-reference signal (NZP CSI-RS) based interference measurement.
6. The method of claim 4 , wherein the configuration information indicates the second CSI-RS resource is configured for a measurement other than a CSI feedback for interference.
7. The method of claim 6 , wherein
the configuration information indicates a density and a number of symbols associated with the second CSI-RS resource,
the density is greater than 1,
the method further comprising performing a second measurement of the second CSI-RS resource, wherein the second measurement is associated with tracking.