Carrier correlation in communications

Abstract

A method, apparatus, and system for carrier aggregation in sidelink communications are disclosed. The method includes, at a first node, determining a set of candidate carriers for carrier aggregation; selecting one or more candidate carriers from the set of candidate carriers as one or more component carriers for carrier aggregation based on the correlation between carriers; and transmitting or receiving on one or more component carriers.

Claims

1. A method of carrier aggregation for sidelink communication, In the first node, the set of candidate carriers for aggregation is determined, Based on the correlation between carriers, one or more candidate carriers are selected from the set of candidate carriers to be one or more component carriers for carrier aggregation, Transmitting or receiving on the aforementioned one or more component carriers, Methods that include...

2. The method according to claim 1, further comprising making the selection based on excluding one or more carriers that have a high correlation with one or more other carriers.

3. The method according to claim 1, further comprising performing a carrier correlation detection procedure.

4. The method according to claim 3, wherein the carrier correlation detection procedure is performed upon receiving an instruction from the first node to start the carrier correlation detection procedure.

5. The method according to claim 4, wherein the instruction includes information relating to the second set of carriers, enabling the first node to perform carrier correlation detection on the second set of carriers.

6. The timer is started when the carrier correlation detection procedure is initiated, When the timer expires, the carrier correlation detection procedure is restarted. The method according to claim 3, further comprising:

7. The duration of the aforementioned timer is The configuration stored in the first node provided by the control network entity, Configuration stored in the first node provided by another node, Pre-configuration within the subscriber identification unit, Pre-configuration within a universal integrated circuit card, or Hardcoding in the first node described above, The method according to claim 6, based on any one of the following.

8. A method for detecting carrier correlations, Determining the correlation between signals between carriers within a set of carriers, Creating a resource matrix for each carrier within the aforementioned set of carriers, Obtaining correlation metrics based on the aforementioned resource matrix, Methods that include...

9. The method according to claim 8, wherein one or more signals are received in the set of carriers, the one or more signals further comprising a predetermined payload or reference signal.

10. Determining the correlation of the aforementioned signals is, Received energy, Channel impulse response, Channel busy rate measurement history, History of received signal strength index measurements, History of reserved resources, Channel occupancy measurement history, Channel status information report value history, History of L3 filtered sidelink received signal reference power measurements. One or more of the history of confirmed response rates or negative response rates, Listen Before Talk (LBT) failure rate, History of consecutive LBT failures, History of wireless link failures, or One or more of the following histories: beam recovery or beam realignment. The method according to claim 8, based on any one of the following.

11. The method according to claim 8, wherein creating the resource matrix includes creating a time and frequency resource matrix based on sensing information determined by the first node.

12. Obtaining the correlation metric involves calculating the correlation metric using a binary matrix, The method according to claim 8, wherein each matrix element of the resource matrix consists of binary information indicating whether or not activity has been detected at the first node in one or more of the time resources or frequency resources.

13. Obtaining the correlation metric involves calculating the correlation metric using a binary matrix, The method according to claim 8, wherein each matrix element of the resource matrix consists of identification information for providing information about time and frequency resources that enable a first node to receive a signal from a second node and to identify a carrier.

14. Obtaining the correlation metric includes calculating the correlation metric using a numerical matrix, The method according to claim 8, wherein each matrix element of the resource matrix identifies the correlation of the signals transmitted with respect to time and frequency resources.

15. The method according to claim 14, wherein each matrix element is a correlation value obtained based on the similarity of channel impulse responses of different carriers.

16. The method according to claim 8, wherein obtaining the correlation metric involves calculating the correlation metric based on the decoding results of data duplicated across multiple carriers in the set of carriers.

17. The method according to claim 8, further comprising receiving the correlation metric from the second node at the first node.

18. The method according to claim 8, further comprising sharing the correlation metric from a first node to a second node.

19. The method according to claim 8, further comprising indicating that if the correlation metric indicates that one or more other carriers are strongly correlated, then one or more of the carriers are excluded from the transmission opportunity.

20. To determine carriers with correlation values ​​below a threshold, The determined carrier is shared with the second node, The method according to claim 8, further comprising:

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