IP Library › Granted Patent US 12,231,240
Granted Patent B2
US 12,231,240 · App. 17/597,326 · Granted Feb 18, 2025

Apparatus, method and SW for HARQ control

Inventors: Dani Korpi (Espoo, FI); Leo Kärkkäinen (Espoo, FI); Mikko Honkala (Espoo, FI); Janne Huttunen (Espoo, FI); Mikko Uusitalo (Espoo, FI)
Assignee: Nokia Technologies Oy
H04L1/1812H04L1/1854H04L1/1864H04L1/1896H04W72/0453H04W72/54
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Quick Facts
Patent No.
US 12,231,240
App. No.
17/597,326
Granted
Feb 18, 2025
Kind
B2
Abstract

An apparatus, method and SW for HARQ control are disclosed. The method includes: analyzing ( 514 ) a beginning part of a data packet received on a specific frequency band and in a scheduled slot between a user apparatus and a radio access network to predict a success of decoding the data packet after received in full; and controlling ( 516 ) a hybrid automatic repeat request procedure associated with the data packet based on the predicted success using the specific frequency band and the scheduled slot for full-duplex inband signaling.

Claims (48)

1. An apparatus for a network element, comprising:

one or more memories including computer program code; and

one or more processors to execute the computer program code to cause the apparatus to perform at least the following:

analyzing a beginning part of a data packet received on a specific frequency band and in a scheduled slot between a user apparatus and a radio access network to predict a success of decoding the data packet after received in full, wherein the analyzing to predict the success is carried out with a neural network with trained parameters;

controlling a hybrid automatic repeat request procedure associated with the data packet based on the predicted success using the specific frequency band and the scheduled slot for full-duplex inband signaling;

deciding that the user apparatus possesses a capability to receive the full-duplex inband signaling of the hybrid automatic repeat request procedure, if the user apparatus is recorded of having received the full-duplex inband signaling of the hybrid automatic repeat request procedure in the past, or if the user apparatus is missing from a list of user apparatuses being incapable to receive the full-duplex inband signaling of the hybrid automatic repeat request procedure, or if the user apparatus has not yet failed to receive the full-duplex inband signaling of the hybrid automatic repeat request procedure for at least a predetermined number of times; and

transmitting downlink control information indicating that the user apparatus possesses the capability.

2. The apparatus of claim 1 , wherein the apparatus is caused to perform the following:

controlling the hybrid automatic repeat request procedure associated with the data packet during a transmission time interval of the data packet.

3. The apparatus of claim 1 , wherein the apparatus is caused to perform the following:

controlling the hybrid automatic repeat request procedure associated with the data packet before the data packet is received in full and decoded.

4. The apparatus of claim 1 , wherein controlling the hybrid automatic repeat request procedure associated with the data packet comprises:

transmitting an acknowledgement associated with the data packet using the specific frequency band and the scheduled slot for the full-duplex inband signaling, if the predicted success indicates that the decoding of the data packet will succeed; or

transmitting a negative acknowledgement associated with the data packet using the specific frequency band and the scheduled slot for the full-duplex inband signaling, if the predicted success indicates that the decoding of the data packet will fail.

5. The apparatus of claim 1 , wherein controlling the hybrid automatic repeat request procedure associated with the data packet comprises:

transmitting a grant for retransmission associated with the data packet using the specific frequency band and the scheduled slot for the full-duplex inband signaling, if the predicted success indicates that the decoding of the data packet will fail.

6. The apparatus of claim 1 , wherein the apparatus is caused to perform the following:

transmitting downlink control information indicating a capability of the radio access network to receive the full-duplex inband signaling of the hybrid automatic repeat request procedure, if the radio access network possesses the capability to receive the full-duplex inband signaling, or else controlling the hybrid automatic repeat request procedure to use a legacy hybrid automatic repeat request procedure in uplink; and/or

transmitting uplink control information indicating a capability of the user apparatus to receive the full-duplex inband signaling of the hybrid automatic repeat request procedure, if the user apparatus possesses the capability to use the full-duplex inband signaling, or else controlling the hybrid automatic repeat request procedure to use a legacy hybrid automatic repeat request procedure in the downlink.

7. The apparatus of claim 1 , wherein the apparatus is caused to perform the following:

transmitting downlink control information indicating a capability of the radio access network to receive the full-duplex inband signaling of the hybrid automatic repeat request procedure, if the radio access network possesses the capability to receive the full-duplex inband signaling, or else controlling the hybrid automatic repeat request procedure to use a legacy hybrid automatic repeat request procedure in uplink; and/or

transmitting uplink control information indicating a capability of the user apparatus to receive the full-duplex inband signaling of the hybrid automatic repeat request procedure, if the user apparatus possesses the capability to use the full-duplex inband signaling, or else controlling the hybrid automatic repeat request procedure to use a legacy hybrid automatic repeat request procedure in the downlink;

maintaining statistics indicating a proportion of full-duplex inband signaling capable network elements, and a proportion of correct predictions; and

reserving resources for the legacy hybrid automatic repeat request procedure based on the statistics.

8. The apparatus of claim 1 , wherein the apparatus is caused to perform the following:

receiving the data packet in full;

decoding the data packet after received in full;

if the predicted success was erroneous, reverting to a legacy hybrid automatic repeat request procedure.

9. The apparatus of claim 1 , wherein the network element is the user apparatus.

10. The apparatus of claim 1 , wherein the network element belongs to the radio access network.

11. A method comprising:

analyzing a beginning part of a data packet received on a specific frequency band and in a scheduled slot between a user apparatus and a radio access network to predict a success of decoding the data packet after received in full, wherein the analyzing to predict the success is carried out with a neural network with trained parameters;

controlling a hybrid automatic repeat request procedure associated with the data packet based on the predicted success using the specific frequency band and the scheduled slot for full-duplex inband signaling;

deciding that the user apparatus possesses a capability to receive the full-duplex inband signaling of the hybrid automatic repeat request procedure, if the user apparatus is recorded of having received the full-duplex inband signaling of the hybrid automatic repeat request procedure in the past, or if the user apparatus is missing from a list of user apparatuses being incapable to receive the full-duplex inband signaling of the hybrid automatic repeat request procedure, or if the user apparatus has not yet failed to receive the full-duplex inband signaling of the hybrid automatic repeat request procedure for at least a predetermined number of times; and

transmitting downlink control information indicating that the user apparatus possesses the capability.

12. The method of claim 11 , comprising:

controlling the hybrid automatic repeat request procedure associated with the data packet during a transmission time interval of the data packet.

13. The method of claim 11 , comprising:

controlling the hybrid automatic repeat request procedure associated with the data packet before the data packet is received in full and decoded.

14. The method of claim 11 , wherein controlling the hybrid automatic repeat request procedure associated with the data packet comprises:

transmitting an acknowledgement associated with the data packet using the specific frequency band and the scheduled slot for the full-duplex inband signaling, if the predicted success indicates that the decoding of the data packet will succeed; or

transmitting a negative acknowledgement associated with the data packet using the specific frequency band and the scheduled slot for the full-duplex inband signaling, if the predicted success indicates that the decoding of the data packet will fail.

15. The method of claim 11 , wherein controlling the hybrid automatic repeat request procedure associated with the data packet comprises:

transmitting a grant for retransmission associated with the data packet using the specific frequency band and the scheduled slot for the full-duplex inband signaling, if the predicted success indicates that the decoding of the data packet will fail.

16. The method of claim 11 , comprising:

receiving the data packet in full;

decoding the data packet after received in full;

if the predicted success was erroneous, reverting to a legacy hybrid automatic repeat request procedure.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 4, 2022
From: KORPI, DANI; KÄRKKÄINEN, LEO; HONKALA, MIKKO; HUTTUNEN, JANNE; UUSITALO, MIKKO
To: NOKIA TECHNOLOGIES OY
Reel/Frame 058539/0135 →
Continuity (1)
Related Publication 20220329359A1 · Oct 13, 2022
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