Port group indication and port subsets in a csi-rs resource for new radio (nr)
AssigneeQUALCOMM Incorporated
InventorsAlexandros MANOLAKOS, Yu ZHANG
Life of this patent
Estimating the term…
Abstract
Aspects of the present disclosure provide channel state information reference signal (CSI-RS) resources that specify the resource elements (REs) on which a CSI-RS may be transmitted, along with a set of ports at the base station from which the CSI-RS may be transmitted. Within the set of ports for particular CSI-RS resource, one or more port groups may further be configured. Each port group identifies a group of ports associated with a channel. In some examples, a port group identifies the ports on which CSI may be measured. Other ports within the set of ports that are outside the port group may be utilized for interference measurement.
Claims57
A method of wireless communication between a scheduling entity and a set of one or more scheduled entities in a wireless communication network, the method comprising, at the scheduling entity:
- configuring a plurality of channel state information reference signal (CSI-RS) resources, each identifying a set of one more resource elements on which to transmit a CSI-RS and a set of one or more ports from which to transmit the CSI-RS;
- for each of the plurality of CSI-RS resources, configuring a set of one or more port groups, each identifying a group of ports within the respective set of ports associated with a channel;
- selecting a CSI-RS resource from the plurality of CSI-RS resources and a port group from the set of one or more port groups of the CSI-RS resource for a scheduled entity of the set of one or more scheduled entities;
- transmitting an indication of the CSI-RS resource and the port group selected for the scheduled entity to the scheduled entity;
- and
- transmitting the CSI-RS to the scheduled entity utilizing the set of one or more resource elements and the set of one or more ports associated with the CSI-RS resource.
A scheduling entity in wireless communication with a set of one or more scheduled entities in a wireless communication network, comprising:
- a processor;
- a transceiver communicatively coupled to the processor;
- and
- a memory communicatively coupled to the processor, wherein the processor is configured to:
- configure and maintain within the memory a plurality of channel state information reference signal (CSI-RS) resources, each identifying a set of one more resource elements on which to transmit a CSI-RS and a set of one or more ports from which to transmit the CSI-RS;
- for each of the plurality of CSI-RS resources, configure and maintain within the memory a set of one or more port groups, each identifying a group of ports within the respective set of ports associated with a channel;
- select a CSI-RS resource from the plurality of CSI-RS resources and a port group from the set of one or more port groups of the CSI-RS resource for a scheduled entity of the set of one or more scheduled entities;
- transmit an indication of the CSI-RS resource and the port group selected for the scheduled entity to the scheduled entity via the transceiver;
- and
- transmit the CSI-RS to the scheduled entity utilizing the set of one or more resource elements and the set of one or more ports associated with the CSI-RS resource.
A scheduling entity in wireless communication with a set of one or more scheduled entities in a wireless communication network, comprising:
- means for configuring a plurality of channel state information reference signal (CSI-RS) resources, each identifying a set of one more resource elements on which to transmit a CSI-RS and a set of one or more ports from which to transmit the CSI-RS;
- for each of the plurality of CSI-RS resources, means for configuring a set of one or more port groups, each identifying a group of ports within the respective set of ports associated with a channel;
- means for selecting a CSI-RS resource from the plurality of CSI-RS resources and a port group from the set of one or more port groups of the CSI-RS resource for a scheduled entity of the set of one or more scheduled entities;
- means for transmitting an indication of the CSI-RS resource and the port group selected for the scheduled entity to the scheduled entity;
- and
- means for transmitting the CSI-RS to the scheduled entity utilizing the set of one or more resource elements and the set of one or more ports associated with the CSI-RS resource.
A method of wireless communication between a scheduled entity and a scheduling entity in a wireless communication network, the method comprising, at the scheduled entity:
- receiving an indication of a channel state information reference signal (CSI-RS) resource identifying a set of one more resource elements on which to receive a CSI-RS and a set of one or more ports from which to receive the CSI-RS;
- receiving a port group indication of a port group, wherein the port group comprises a group of ports within the set of one or more ports of the CSI-RS resource on which to perform channel estimation of a channel;
- receiving the CSI-RS on the set of one or more resource elements and the set of one or more ports associated with the CSI-RS resource;
- calculating channel state information (CSI) on the group of ports within the port group indicated by the port group indication;
- and
- transmitting the CSI to the scheduling entity.
A scheduled entity in wireless communication with a scheduling entity in a wireless communication network, comprising:
- a processor;
- a transceiver communicatively coupled to the processor;
- and
- a memory communicatively coupled to the processor, wherein the processor is configured to:
- receive an indication of a channel state information reference signal (CSI-RS) resource identifying a set of one more resource elements on which to receive a CSI-RS and a set of one or more ports from which to receive the CSI-RS via the transceiver;
- receive a port group indication of a port group, wherein the port group comprises a group of ports within the set of one or more ports of the CSI-RS resource on which to perform channel estimation of a channel via the transceiver;
- receive the CSI-RS on the set of one or more resource elements and the set of one or more ports associated with the CSI-RS resource via the transceiver;
- calculate channel state information (CSI) on the group of ports within the port group indicated by the port group indication;
- and
- transmit the CSI to the scheduling entity via the transceiver.
A scheduled entity in wireless communication with a scheduling entity in a wireless communication network, the scheduled entity comprising:
- means for receiving an indication of a channel state information reference signal (CSI-RS) resource identifying a set of one more resource elements on which to receive a CSI-RS and a set of one or more ports from which to receive the CSI-RS;
- means for receiving a port group indication of a port group, wherein the port group comprises a group of ports within the set of one or more ports of the CSI-RS resource on which to perform channel estimation of a channel;
- means for receiving the CSI-RS on the set of one or more resource elements and the set of one or more ports associated with the CSI-RS resource;
- means for calculating channel state information (CSI) on the group of ports within the port group indicated by the port group indication;
- and
- means for transmitting the CSI to the scheduling entity.
Dependencies are inferred from the claim text.