Network assisted time reversal radio frequency sensing
AssigneeQUALCOMM Incorproated
InventorsWeimin Duan, Hyojin Lee, Bala Ramasamy
Life of this patent
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Abstract
Techniques are provided for implementing time reversed reference signals for radio frequency (RF) sensing operations in a communication system. An example method for generating channel reciprocity information for radio frequency sensing operations includes receiving radio frequency sensing information from a sensing node, generating a channel reciprocity prediction based at least in part on the radio frequency sensing information and a channel reciprocity prediction model, and providing an indication for time reversal precoding to the sensing node based on the channel reciprocity prediction.
Claims30
A method for generating time reversal precoding information for radio frequency sensing operations, comprising:
- receiving a sensing report message comprising sensed object information from a first sensing node or a second sensing node, wherein the sensed object information comprises one or more object-related parameters of at least one sensed object;
- determining channel reciprocity information for a sensing channel associated with the first sensing node and the second sensing node, wherein the channel reciprocity information is based at least in part on at least one feature derived from the sensed object information in the sensing report message;
- generating time reversal precoding information based at least in part on the channel reciprocity information;
- and
- providing the time reversal precoding information to at least one of the first sensing node and the second sensing node.
An apparatus, comprising:
- at least one memory;
- at least one transceiver;
- at least one processor communicatively coupled to the at least one memory and the at least one transceiver, and configured to:
- receive a sensing report message comprising sensed object information from a first sensing node or a second sensing node, wherein the sensed object information comprises one or more object-related parameters of at least one sensed object;
- determine channel reciprocity information for a sensing channel associated with the first sensing node and the second sensing node, wherein the channel reciprocity information is based at least in part on at least one feature derived from the sensed object information in the sensing report message;
- generate time reversal precoding information based at least in part on the channel reciprocity information;
- and
- provide the time reversal precoding information to at least one of the first sensing node and the second sensing node.
An apparatus for generating time reversal precoding information for radio frequency sensing operations, comprising:
- means for receiving a sensing report message comprising sensed object information from a first sensing node or a second sensing node, wherein the sensed object information comprises one or more object-related parameters of at least one sensed object;
- means for determining channel reciprocity information for a sensing channel associated with the first sensing node and the second sensing node, wherein the channel reciprocity information is based at least in part on at least one feature derived from the sensed object information in the sensing report message;
- means for generating time reversal precoding information based at least in part on the channel reciprocity information;
- and
- means for providing the time reversal precoding information to at least one of the first sensing node and the second sensing node.
A non-transitory processor-readable storage medium comprising processor-readable instructions configured to cause one or more processors to generate time reversal precoding information for radio frequency sensing operations, comprising code for:
- receiving a sensing report message comprising sensed object information from a first sensing node or a second sensing node, wherein the sensed object information comprises one or more object-related parameters of at least one sensed object;
- determining channel reciprocity information for a sensing channel associated with the first sensing node and the second sensing node, wherein the channel reciprocity information is based at least in part on at least one feature derived from the sensed object information in the sensing report message;
- generating time reversal precoding information based at least in part on the channel reciprocity information;
- and
- providing the time reversal precoding information to at least one of the first sensing node and the second sensing node.
Dependencies are inferred from the claim text.