Optical reference signal based TRP detection

Patent metadata

Field	Value
Publication number	US-12550045-B2
Application number	US-202217658613-A
Country	US
Kind code	B2
Filing date	Apr 8, 2022
Priority date	Apr 8, 2022
Publication date	Feb 10, 2026
Grant date	Feb 10, 2026

Abstract

The user equipment (UE) may obtain at least one optical reference signal associated with a transmit receive point (TRP), the at least one optical reference signal including at least one of: a TRP identifier (ID) or direction information of the at least one optical reference signal with reference to the TRP. The UE may identify information associated with the TRP with reference to the UE based on the at least one optical reference signal, and perform at least one of a cell acquisition, a beam management, a UE position detection, a TRP validation, or an ambient environment detection based on the identified information associated with the TRP. The UE may also receive at least one reference radio signal, and use the correlation between the optical reference signal and the received reference radio signal.

First claim

What is claimed is:

1 . An apparatus for wireless communication at a user equipment (UE), comprising:
memory; and at least one processor coupled to the memory and configured to: obtain, using an image capturing device at the UE, at least one optical reference signal from a light source at a transmit receive point (TRP), the at least one optical reference signal including at least one of: a TRP identifier (ID) or direction information of the at least one optical reference signal with reference to the TRP; and identify information associated with the TRP with reference to the UE based on the at least one optical reference signal, wherein the information associated with the TRP with reference to the UE comprises at least one of the TRP ID or the direction information of the at least one optical reference signal with reference to the TRP.

2 . The apparatus of claim 1 , further comprising a transceiver coupled to the at least one processor, wherein the at least one processor is further configured to:
perform at least one of a cell acquisition, a beam management, a UE position detection, a TRP validation, or an ambient environment detection based on the identified information associated with the TRP.

3 . The apparatus of claim 1 , wherein the TRP ID is modulated using at least one of: a binary light or a set of color light.

4 . The apparatus of claim 1 , wherein the at least one optical reference signal includes a plurality of optical reference signals cast in different directions, and wherein the at least one processor is further configured to:
detect a position of the UE with reference to the TRP based on one optical reference signal of the plurality of optical reference signals.

5 . The apparatus of claim 4 , wherein each optical reference signal of the plurality of optical reference signals indicates a direction in which the optical reference signal is cast.

6 . The apparatus of claim 1 , wherein the at least one optical reference signal is associated with a barcode, and wherein to obtain the at least one optical reference signal, the at least one processor is configured to obtain the at least one optical reference signal by scanning the barcode.

7 . The apparatus of claim 6 , wherein the barcode indicates the TRP ID.

8 . The apparatus of claim 7 , wherein the TRP ID of the TRP is identified based on a database including the barcode.

9 . The apparatus of claim 8 , wherein the at least one processor is further configured to download the database from a network or a network node.

10 . The apparatus of claim 6 , wherein the barcode indicates a direction of the TRP with reference to the barcode.

11 . The apparatus of claim 10 , wherein the at least one processor is further configured to:
detect location information of the barcode with reference to the UE; and detect the direction of the UE with reference to the TRP based on the barcode and location information of the barcode with reference to the UE.

12 . The apparatus of claim 6 , wherein the barcode includes a location, and the at least one processor is further configured to detect the TRP based on the location of the barcode.

13 . The apparatus of claim 12 , wherein a location of the detected TRP is identified based on a database including the location of the detected TRP.

14 . The apparatus of claim 1 , wherein the at least one processor is further configured to:
receive at least one reference radio signal; and perform a beam detection based on the obtained at least one optical reference signal and the at least one reference radio signal.

15 . The apparatus of claim 14 , wherein, to perform the beam detection, the at least one processor is configured to:
identify a subset of beams from a plurality of beams based on the at least one reference radio signal; and identify one beam from the subset of beams based on the at least one optical reference signal.

16 . The apparatus of claim 1 , wherein the information associated with the TRP includes a physical cell ID (PCI) of the TRP, and wherein the at least one processor is further configured to:
perform a cell acquisition based on the PCI of the TRP identified from the at least one optical reference signal.

17 . The apparatus of claim 1 , wherein the at least one processor is further configured to:
receive at least one reference radio signal; and detect a position of the UE with reference to the TRP based on the at least one optical reference signal and the at least one reference radio signal.

18 . The apparatus of claim 1 , wherein the at least one processor is further configured to:
receive at least one reference radio signal indicating a cell ID of the TRP; and validate the TRP based on the cell ID of the TRP being associated with the TRP ID of the at least one optical reference signal.

19 . The apparatus of claim 1 , wherein the at least one processor is further configured to:
transmit at least one of a strength or a pattern of the at least one optical reference signal to the TRP; receive at least one radio transmission impacting factor based on at least one of the strength or the pattern of the at least one optical reference signal; and manage radio propagation estimation based on the radio transmission impacting factor.

20 . The apparatus of claim 19 , wherein the radio propagation estimation is performed by an artificial intelligence or a machine-learning algorithm.

21 . The apparatus of claim 1 , wherein the at least one processor is further configured to:
transmit at least one of a strength or a pattern of the at least one optical reference signal to the TRP; receive a radio communication environment status from the TRP based on at least one of the strength or the pattern of the at least one optical reference signal; generate at least one radio transmission impacting factor based on the radio communication environment status; and manage radio propagation estimation based on the radio communication environment status.

22 . An apparatus for wireless communication at a transmit receive point (TRP), comprising:
memory; and at least one processor coupled to the memory and configured to: transmit, to at least one user equipment (UE), via a light source, at least one optical reference signal associated with a barcode indicating at least one of: a TRP identifier (ID) or direction information of the at least one optical reference signal with reference to the TRP; and receive information associated with the TRP with reference the at least one UE based on the at least one optical reference signal.

23 . The apparatus of claim 22 , wherein the at least one optical reference signal includes a plurality of optical reference signals cast in different directions.

24 . The apparatus of claim 23 , wherein each optical reference signal of the plurality of optical reference signals indicates a direction in which the optical reference signal is cast.

25 . The apparatus of claim 22 , wherein the at least one processor is further configured to transmit at least one reference radio signal.

26 . The apparatus of claim 22 , wherein the information associated with the TRP with reference the at least one UE based on the at least one optical reference signal includes at least one of a strength or a pattern of the at least one optical reference signal, wherein the at least one processor is further configured to:
generate a radio co

Assignees

• Qualcomm Inc

Inventors

• Zhu Xipeng
• Huang Fei
• Zhang Duo
• Ji Tingfang

Classifications

• H04W48/04 Primary

  based on user or terminal location or mobility data, e.g. moving direction, speed · CPC title

• H04W48/08 Primary

  Access restriction or access information delivery, e.g. discovery data delivery (signalling during connection H04W76/00) · CPC title