Serving user devices with intelligent reflecting devices
This document generally relates to a system including wireless access nodes and user devices that communicate with each other via one or more intelligent reflecting devices. An intelligent reflecting device may have a surface covered by a least one metasurface layer configured to filter at least one of incoming signals or outgoing signals. In addition or alternatively, an intelligent reflecting device or a wireless access node may determine which user devices to include in a user group to serve based on telecom operator and/or user identification information communicated to the intelligent reflecting device.
1 . A method for wireless communication, the method comprising:
receiving, with an intelligent reflecting device, at least one of telecom operator identification information or user identification information from at least one user device; and
determining, with at least one of the intelligent reflecting device or a wireless access node, to serve the at least one user device based on the operator identification information or the user identification information and an operator identification of a telecom operator the intelligent reflecting device is configured to serve.
2 . The method of claim 1 , further comprising:
receiving, with the wireless access node, the operator identification information from the intelligent reflecting device,
wherein the wireless access node determines to serve the at least one user device, and wherein the determining to serve is further based on at least one of frequency information, angle information, distance information, location information, transmission quality information, or work demand information.
3 . The method of claim 2 , further comprising:
terminating, with the wireless access node, a communication with the at least one user device in response to the intelligent reflecting device not detecting user identification information for the at least one user device.
4 . The method of claim 1 , further comprising:
comparing, with the intelligent reflecting device, the operator identification with the telecom operator identification information; and
determining, with the intelligent reflecting device, to serve the at least one user device based on the comparison; and
determining, with the intelligent reflecting device or the wireless access node, a scheduling result corresponding to the determining to serve.
5 . The method of claim 1 , further comprising:
filtering out, with a metasurface layer covering a surface of the intelligent reflecting device, signals transmitted from devices served by other telecom operators other than a telecom operator that the intelligent reflecting device exclusively serves.
6 . The method of claim 1 , further comprising:
determining, with the wireless access node, a beamforming matrix, a first matrix for the intelligent reflecting device, and a second matrix for at least one metasurface layer covering a surface of the intelligent reflecting device,
wherein the at least one metasurface layer is tunable.
7 . The method of claim 1 , wherein the telecom operator identification information comprises a single frequency, and wherein determining to grant access to the at least one user devi user device is further based on the intelligent reflecting device not being exclusive to only one telecom operator.
8 . The method of claim 1 , wherein the telecom operator identification information comprises multiple frequencies, the method further comprising:
sending, with the intelligent reflecting device, the telecom operator identification information to the wireless access node; and
determining, with the wireless access node, to serve the at least one user device and scheduling information for the at least one user device based on the telecom operator identification information and at least one of: operator information, frequency information, direction information, intensity information, transmission quality information, or transmission requirements;
determining, with the wireless access node, a filter configuration for a metasurface layer covering a surface of the intelligent reflecting device; and
sending, with the wireless access node, the filter configuration and access information to the intelligent reflecting device.
9 . The method of claim 1 , further comprising:
configuring a metasurface layer covering a surface of the intelligent reflecting device with a filter configuration having a pass frequency corresponding to a frequency of the at least one user device granted access.
10 . The method of claim 1 , further comprising:
during a training phase:
continuously receiving, with the intelligent reflecting device, the user identification information of the at least one user device;
determining, with the wireless access node, a beamforming matrix, a first matrix for the intelligent reflecting device, and a second matrix for at least one metasurface layer covering a surface of the intelligent reflecting device; and
transmitting the first matrix to the intelligent reflecting device and the second matrix to the at least one metasurface layer until the user identification information cannot be detected.
11 . The method of claim 1 , further comprising:
determining, with at least one of the intelligent reflecting device or the wireless access node, the user identification information from a preamble sequence.
12 . The method of claim 11 , wherein the preamble sequence is for a single user device of the at least one user device.
13 . The method of claim 11 , wherein the preamble sequence is for multiple user devices of the at least one user device.
14 . The method of claim 1 , further comprising:
filtering, with at least one metasurface layer covering a surface of the intelligent reflecting device, a signal carrying at least one of the telecom operator information or the user identification information before being received by the surface of the intelligent reflecting device.
15 . The method of claim 1 , further comprising:
filtering, with at least one metasurface layer covering a surface of the intelligent reflecting device, a reflected signal from the surface carrying at least one of the telecom operator identification information or user identification information.
16 . The method of claim 1 , further comprising:
reflecting, with the intelligent reflecting device, one or more signals comprising at least one of the telecom operator identification information or the user identification information, wherein the intelligent reflecting device does not have sensing ability to detect the telecom operator identification or the user identification information in the one or more signals.
17 . The method of claim 1 , wherein the intelligent reflecting device is configured to exclusively serve the telecom operator or non-exclusively serve the telecom operator.
18 . The method of claim 1 , wherein the telecom operator that the intelligent reflecting device serves at least one of: has exclusive use of a target frequency band, or shares frequency bands with other telecom operator.
19 . A system comprising:
an intelligent reflecting device configured to:
receive at least one of telecom operator identification information or user identification information from at least one user device; and
determine to serve the at least one user device based on the operator identification information or the user identification information and an operator identification of a telecom operator the intelligent reflecting device is configured to serve.