Back-compatible reconfigurable intelligent surface discovery via signatured wireless sensing
AssigneeQUALCOMM Incorporated
InventorsYucheng Dai, Wooseok Nam, Tao Luo
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Abstract
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a first wireless node may transmit, to a reconfigurable intelligent surface (RIS), a first signal modulated using a first modulation signature, wherein the first modulation signature is an inverted modulation signature associated with a second modulation signature to be applied by the RIS. The first wireless node may receive, from a second wireless node, a second signal indicating that the first signal has been redirected by the RIS and received by the second wireless node. Numerous other aspects are described.
Claims55
A first wireless node for wireless communication, comprising:
- one or more memories;
- and
- one or more processors coupled to the one or more memories, the one or more processors configured to cause the first wireless node to:
- transmit, to a reconfigurable intelligent surface (RIS), a first signal modulated by a first modulation signature, wherein the first modulation signature is an inverted modulation signature associated with a second modulation signature associated with the RIS;
- and
- receive, from a second wireless node, a second signal that indicates the first signal has been received by the second wireless node.
A second wireless node for wireless communication, comprising:
- one or more memories;
- and
- one or more processors coupled to the one or more memories, the one or more processors configured to cause the second wireless node to:
- receive a first signal from a reconfigurable intelligent surface (RIS);
- decode the first signal;
- and
- transmit, to a first wireless node and based at least in part on decoding the first signal, a second signal that indicates the first signal has been received by the second wireless node, wherein a timing of the second signal indicates a beam direction associated with the RIS.
A method of wireless communication performed at a first wireless node, comprising:
- transmitting, to a reconfigurable intelligent surface (RIS), a first signal modulated using a first modulation signature, wherein the first modulation signature is an inverted modulation signature associated with a second modulation signature associated with the RIS;
- and
- receiving, from a second wireless node, a second signal indicating that the first signal has been received by the second wireless node.
A method of wireless communication performed at a second wireless node, comprising:
- receiving a first signal from a reconfigurable intelligent surface (RIS);
- decoding the first signal;
- and
- transmitting, to a first wireless node and based at least in part on decoding the first signal, a second signal indicating that the first signal was received by the second wireless node, wherein a timing of the second signal indicates a beam direction associated with the RIS.
A non-transitory computer-readable medium storing a set of instructions for wireless communication, the set of instructions comprising:
- one or more instructions that, when executed by one or more processors of a first wireless node, cause the first wireless node to:
- transmit, to a reconfigurable intelligent surface (RIS), a first signal modulated using a first modulation signature, wherein the first modulation signature is an inverted modulation signature associated with a second modulation signature associated with the RIS;
- and
- receive, from a second wireless node, a second signal indicating that the first signal has been received by the second wireless node.
A non-transitory computer-readable medium storing a set of instructions for wireless communication, the set of instructions comprising:
- one or more instructions that, when executed by one or more processors of a second wireless node, cause the second wireless node to:
- receive a first signal from a reconfigurable intelligent surface (RIS);
- decode the first signal;
- and
- transmit, to a first wireless node and based at least in part on decoding the first signal, a second signal indicating that the first signal was received by the second wireless node, wherein a timing of the second signal indicates a beam direction associated with the RIS.
An apparatus for wireless communication at a reconfigurable intelligent surface (RIS), comprising:
- one or more memories;
- and
- one or more processors coupled to the one or more memories, the one or more processors configured to cause the RIS to:
- receive, from a first wireless node, a sensing signal, wherein the sensing signal corresponds to a first modulation signature;
- modulate the sensing signal with a second modulation signature that reverses the first modulation signature;
- and
- redirect the sensing signal to a second wireless node.
A method of wireless communication performed at a reconfigurable intelligent surface (RIS), comprising:
- receiving, from a first wireless node, a sensing signal, wherein the sensing signal corresponds to a first modulation signature;
- modulating the sensing signal with a second modulation signature that reverses the first modulation signature;
- and
- redirecting the sensing signal to a second wireless node.
A non-transitory computer-readable medium storing a set of instructions for wireless communication, the set of instructions comprising:
- one or more instructions that, when executed by one or more processors of a reconfigurable intelligent surface (RIS), cause the RIS to:
- receive, from a first wireless node, a sensing signal, wherein the sensing signal corresponds to a first modulation signature;
- modulate the sensing signal with a second modulation signature that reverses the first modulation signature;
- and
- redirect the sensing signal to a second wireless node.
Dependencies are inferred from the claim text.