Frame structure in NR
The present application at least describes a frame structure in new radio. The frame structure includes a self-contained transmission time interval. The transmission time interval includes a control information region including plural beams. The interval also includes a downlink transmission channel region including plural beams. The frame structure is configured for downlink control information to be swept through the time interval. The frame structure is also configured for an uplink or downlink grant resource subsequently to be swept through the time interval. The present application is also directed to a method for configuring user equipment.
1. A method for configuring user equipment comprising:
configuring a set of ‘K’ channel state information interference channel measurement (CSI-ICM) resources and channel state interference reference signal (CSI-RS) resources for a group of user equipment;
indicating, for one of the user equipment in the group, at least ‘N’ of the ‘K’ CSI-ICM resources via radio resource control (RRC) signaling:
transmitting downlink control information including the CSI-ICM resources to the one user equipment in the group;
receiving, from the one user equipment in the group, feedback of an interference measurement based on the transmitted CSI-ICM resources;
scheduling a multi-user multiple input multiple output (MU-MIMO) transmission for the user equipment based on the feedback;
and
determining a cancelation of interference transmitted from the one user equipment to other co-scheduled user equipment in the group,
wherein ‘N’ is dependent upon a number of interference sources.
2. The method of claim 1 , wherein the CSI-ICM resources are based upon information selected from Group identification (ID), CSI-ICM resources indication, CSI-ICM feedback indication, CSI-RS resource indication, CSI-IM resource indication, CSI feedback configuration, index information of the user equipment in the group, uplink resources of user equipment and combinations thereof.
3. The method of claim 1 , wherein the feedback includes:
implicit feedback based upon one or more of a channel quality indication, precoder matrix indication, and rank indication.
4. The method of claim 1 , wherein the configuring step is performed by an apparatus, and the apparatus is a new radio node or a transmission and reception point.
5. The method of claim 3 , wherein the feedback includes explicit feedback based upon one or more of an exact interference measurement, eigenvectors of the interference channel according to the largest eigenvalues, and covariance matrix of the interference channel.
6. The method of claim 1 , wherein the configuration indicates all available CSI-RS and CSI-ICM locations or resources used for the CSI-ICM measurement.
7. The method of claim 6 , wherein the downlink control information includes a number of CSI-ICM resources and locations.
8. A method for configuring user equipment comprising:
receiving, from a new radio (NR) node, downlink control information including channel state information interference channel measurement (CSI-ICM) resources;
measuring the CSI-ICM resources; and
sending, to the NR node, feedback based on the measured CSI-ICM resources,
wherein the received CSI-ICM resources are based on ‘N’ of ‘K’ CSI-ICM resources configured for a group including the user equipment and other user equipment,
wherein ‘N’ is dependent upon a number of interference sources.
9. The method of claim 8 , wherein the CSI-ICM resources are based upon information selected from Group identification (ID), CSI-ICM resources indication, CSI-ICM feedback indication, CSI-RS resource indication, CSI-IM resource indication, CSI feedback configuration, index information of the user equipment in the group, uplink resources of user equipment and combinations thereof.
10. The method of claim 8 , wherein the feedback includes implicit feedback based upon one or more of a channel quality indication, precoder matrix indication, and rank indication.
11. The method of claim 10 , wherein the feedback includes explicit feedback based upon one or more of an exact interference measurement, eigenvectors of the interference channel according to the largest eigenvalues, and covariance matrix of the interference channel.
12. The method of claim 8 , wherein the configuration indicates all available channel state interference reference signal (CSI-RS) and CSI-ICM locations or resources used for the CSI-ICM measurement.
13. The method of claim 12 , wherein the downlink control information includes a number of CSI-ICM resources and locations.
14. An apparatus comprising:
a non-transitory memory including instructions stored thereon for configuring user equipment; and
a processor operably coupled to the non-transitory memory configured to execute the instruction including:
configuring a set of ‘K’ channel state information interference channel measurement (CSI-ICM) resources for a group of user equipment;
indicating, for one of the user equipment in the group, at least ‘N’ of the ‘K’ CSI-ICM resources via radio resource control (RRC) signaling;
transmitting downlink control information including the CSI-ICM resources to the one user equipment in the group;
receiving, from the one user equipment in the group, feedback of interference measurement based on the transmitted CSI-ICM resources; and
determining a cancelation of interference transmitted from the one user equipment to other co-scheduled user equipment in the group,
wherein ‘N’ is dependent upon a number of interference sources.
15. The apparatus of claim 14 , wherein the processor is further configured to execute the instructions of scheduling a multi-user multiple input multiple output (MU-MIMO) transmission for the user equipment based on the feedback.