INTER-COMMUNICATION TECHNOLOGY AGGREGATION OF ASYNCHRONOUS RADIO FREQUENCY AND VISIBLE LIGHT COMMUNICATION LINKS

20240365296

18/708526

January 21, 2022

Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive, from a first network device using a first communication technology, an indication of a resource mapping between a first set of time resources for downlink communications using the first communication technology and a second set of time resources for downlink communications using a second communication technology. The UE may determine a timing for receiving a first message from a second network device using the second communication technology based on receiving the indication of the resource mapping. The UE may receive, from the second network device, the first message using the second communication technology based on determining the timing. The UE may transmit, to the first network device, a second message including feedback information using the first communication technology based on receiving the first message from the second network device using the second communication technology.

1. A method for wireless communication at a user equipment (UE), comprising: receiving, from a first network device using a first communication technology, an indication of a resource mapping between a first set of time resources for downlink communications using the first communication technology and a second set of time resources for downlink communications using a second communication technology; determining a timing for receiving a first message from a second network device using the second communication technology based at least in part on receiving the indication of the resource mapping; and receiving, from the second network device, the first message using the second communication technology based at least in part on determining the timing.

2. The method of claim 1, further comprising: transmitting, to the first network device, a second message using the first communication technology based at least in part on receiving the first message from the second network device using the second communication technology, the second message comprising feedback information associated with the first message received from the second network device using the second communication technology.

3. The method of claim 2, further comprising: receiving, from the first network device, one or more retransmissions of the first message using the first communication technology, wherein the one or more retransmissions are received based at least in part on transmitting the second message comprising the feedback information.

4. The method of claim 2, further comprising: transmitting, to the first network device using the first communication technology, a third message comprising feedback information associated with messages received from the first network device using the first communication technology.

5. The method of claim 4, wherein the third message and the second message are transmitted using a time-division multiplexing pattern based at least in part on a single Tx capability of the UE.

6. The method of claim 4, wherein the third message and the second message are transmitted simultaneously based at least in part on a dual-Tx capability of the UE.

7. The method of claim 1, further comprising: receiving, from the first network device using the first communication technology, control signaling indicating a delay associated with messages communicated using the second communication technology relative to the first communication technology, wherein receiving the first message using the second communication technology is based at least in part on receiving the control signaling.

8. The method of claim 1, wherein receiving the indication of the resource mapping further comprises: receiving an indication that the first set of time resources for downlink communications using the first communication technology is mapped to the second set of time resources for downlink communications using the second communication technology, wherein receiving, from the second network device, the first message using the second communication technology is based at least in part on receiving the indication.

9. The method of claim 1, wherein receiving the indication of the resource mapping further comprises: receiving an indication that the second set of time resources for downlink communications using the second communication technology is mapped to a third set of time resources for uplink communications using the first communication technology; and transmitting, to the first network device, a second message using the first communication technology based at least in part on receiving the indication, wherein the second message comprises feedback information associated with the first message received from the second network device using the second communication technology.

10. The method of claim 1, wherein receiving the indication of the resource mapping further comprises: receiving, as part of the indication, one or more system frame numbers associated with the first communication technology or the second communication technology or both, one or more frame offsets between the first communication technology and the second communication technology, and one or more slot durations or frame lengths associated with the first communication technology or the second communication technology or both, or any combination thereof; and determining a timing for receiving the first message using the second communication technology based at least in part on any combination of the one or more system frame numbers, the one or more frame offsets, and the one or more slot durations or frame lengths, wherein receiving the first message is based at least in part on determining the timing.

11. The method of claim 1, further comprising: aligning a timing associated with the first communication technology and a timing associated with the second communication technology, wherein the resource mapping between the first set of time resources for downlink communications using the first communication technology and the second set of time resources for downlink communications using the second communication technology is based at least in part on the aligning.

12. The method of claim 1, further comprising: determining a first offset between a time resource associated with the first communication technology and a time resource associated with the second communication technology; determining a second offset between the time resource associated with the first communication technology and the time resource associated with the second communication technology; and determining a difference between the first offset and the second offset corresponding to a timing drift between the first communication technology and the second communication technology.

13. The method of claim 12, further comprising: transmitting an indication of the timing drift to the first network device based at least in part on determining the difference associated with the timing drift; and adjusting the resource mapping based at least in part on the timing drift satisfying a threshold.

14. The method of claim 1, wherein the first network device comprises a base station and the second network device comprises a visible light communications access point.

15. The method of claim 1, wherein the first communication technology comprises a radio access technology and the second communication technology comprises visible light communications.

16. The method of claim 1, further comprising: establishing a first communication link with the first network device using the first communication technology; and establishing a second communication link with the second network device using the second communication technology, wherein one or more time resources associated with the first communication link are asynchronous with one or more time resources associated with the second communication link.

17. A method for wireless communication at a first network device, comprising: determining a resource mapping between a first set of time resources for downlink communications using a first communication technology and a second set of time resources for downlink communications using a second communication technology; transmitting, to a user equipment (UE) using the first communication technology, an indication of the resource mapping; and monitoring for one or more messages from the UE based at least in part on the resource mapping.

18. The method of claim 17, further comprising: receiving, from the UE, a second message using the first communication technology based at least in part on the UE receiving a first message using the second communication technology from a second network device; and transmitting, via a backhaul connection, to the second network device, feedback information associated with the first message based at least in part on receiving the second message from the UE.

19. The method of claim 18, further comprising: transmitting, to the UE, one or more retransmissions of the first message using the first communication technology, wherein the one or more retransmissions of the first message are transmitted based at least in part on receiving the second message comprising the feedback information.

20. The method of claim 18, further comprising: transmitting, to the UE using the first communication technology, control signaling indicating a delay associated with messages communicated using the second communication technology relative to the first communication technology, wherein the delay is associated with the UE receiving the first message using the second communication technology.

21. The method of claim 17, wherein transmitting the indication of the resource mapping further comprises: transmitting, an indication that the first set of time resources for downlink communications using the first communication technology is mapped to the second set of time resources for downlink communications using the second communication technology, wherein monitoring for the one or more messages from the UE is based at least in part on transmitting the indication.

22. The method of claim 17, wherein transmitting the indication of the resource mapping further comprises: transmitting, an indication that the second set of time resources for downlink communications using the second communication technology is mapped to a third set of time resources for uplink communications using the first communication technology; and receiving, from the UE, a second message using the first communication technology based at least in part on transmitting the indication, wherein the second message comprises feedback information associated with a first message received from a second network device using the second communication technology.

23. The method of claim 17, wherein transmitting the indication of the resource mapping further comprises: transmitting, as part of the indication, one or more system frame numbers associated with the first communication technology or the second communication technology or both, one or more frame offsets between the first communication technology and the second communication technology, and one or more slot durations or frame lengths associated with the first communication technology or the second communication technology or both, or any combination thereof.

24. The method of claim 17, further comprising: aligning a timing associated with the first communication technology and a timing associated with the second communication technology, wherein the resource mapping between the first set of time resources for downlink communications using the first communication technology and the second set of time resources for downlink communications using the second communication technology is based at least in part on the aligning.

25. The method of claim 17, further comprising: receiving, from the UE, an indication of a timing drift corresponding to a measured difference between a first offset and a second offset; and adjusting the resource mapping based at least in part on the timing drift satisfying a threshold.

26. The method of claim 17, further comprising: receiving, from the UE, using the first communication technology, a third message comprising feedback information associated with messages received from the first network device using the first communication technology.

27. The method of claim 26, wherein the third message and a second message are received using a time-division multiplexing pattern based at least in part on a single Tx capability of the UE.

28. A method for wireless communication at a second network device, comprising: receiving, from a first network device using a first communication technology, an indication of a resource mapping between a first set of time resources for downlink communications using the first communication technology and a second set of time resources for downlink communications using a second communication technology; determining a timing for transmitting a first message to a user equipment (UE) using the second communication technology based at least in part on receiving the indication of the resource mapping; and transmitting, to the UE, the first message using the second communication technology.

29. The method of claim 28, further comprising: receiving, from the first network device, via a backhaul connection, feedback information associated with the first message.

30. An apparatus for wireless communication, comprising: a processor; memory coupled with the processor; and instructions stored in the memory and executable by the processor to cause the apparatus to: receive, from a first network device using a first communication technology, an indication of a resource mapping between a first set of time resources for downlink communications using the first communication technology and a second set of time resources for downlink communications using a second communication technology; determine a timing for receiving a first message from a second network device using the second communication technology based at least in part on receiving the indication of the resource mapping; and receive, from the second network device, the first message using the second communication technology based at least in part on determining the timing.

04; 04; 04

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