US 12,712,682 B2Granted

Enhancements on HARQ feedback

AssigneeNokia Technologies Oy

InventorPingping Wen

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Abstract

Embodiments of the present disclosure relate to methods, devices, apparatuses, and computer readable medium for enhancements on HARQ feedback. The method comprises: receiving, at a first device and from a second device, first control information for scheduling a second transmission of the second device and feedback information associated with the second transmission, and second control information for scheduling a third transmission of the first device; decoding, based on the second control information, the second transmission from the second device; generating, based on the decoding result, a first transmission comprising the feedback information and the third transmission comprising at least a duplication of the feedback information; transmitting, to the second device and based on the first control information, the first transmission; and transmitting, to the second device and based on the second control information, the third transmission. By providing the duplication of HARQ feedback, the reliability of HARQ feedback is enhanced, which in turn improves the efficiency of DL data transmissions and reduces frequency resources as well as the power consumption.

Claims20

Dependent claims

A first device, comprising:

at least one processor;
and
at least one memory including computer program codes;
the at least one memory and the computer program codes are configured to, with the at least one processor, cause the first device at least to:
receive, from a second device, first control information for scheduling a second transmission of the second device and feedback information associated with the second transmission, and second control information for scheduling a third transmission of the first device;
decode, based on the first control information, the second transmission from the second device;
generate, based on the decoding result, a first transmission comprising the feedback information;
transmit, to the second device and based on the first control information, the first transmission;
upon transmitting the first transmission, initiate at least one duplication timer associated with the duplication of the feedback information, wherein a first HARQ process and a second HARQ process are configured for the first device, and wherein the at least one duplication timer comprises a first duplication timer associated with the first HARQ process, and a second duplication timer associated with the second HARQ process, and wherein the first HARQ process precedes the second HARQ process;
in accordance with a determination that none of the first duplication timer and the second duplication timer expires and based on the decoding result, generate the third transmission comprising the duplication of the first HARQ feedback and the duplication of the second HARQ feedback, wherein the duplication of the first HARQ feedback is contained in a first reserved bit in a MAC protocol data unit, PDU, header of the third transmission, and the duplication of the second HARQ feedback is contained in a second reserved bit in the MAC PDU header of the third transmission, and the order of the first reserved bit and the second reserved bit in the MAC PDU header are preconfigured at the first device and the second device;
and
transmit, to the second device and based on the second control information, the third transmission.

9 more elements

A system comprising:

a user equipment comprising:
a processor;
and
a non-transitory computer-readable medium that, when executed by the processor, causes the processor to perform the following operations:
receive, from a network device, first control information for scheduling a second transmission of the network device and feedback information associated with the second transmission, and second control information for scheduling a third transmission of the user equipment;
decode, based on the first control information, the second transmission from the network device;
generate, based on the decoding result, a first transmission comprising the feedback information;
transmit, to the network device and based on the first control information, the first transmission;
upon transmitting the first transmission, initiate at least one duplication timer associated with the duplication of the feedback information, wherein a first HARQ process and a second HARQ process are configured for the user equipment device, and wherein the at least one duplication timer comprises a first duplication timer associated with the first HARQ process, and a second duplication timer associated with the second HARQ process, and wherein the first HARQ process precedes the second HARQ process;
in accordance with a determination that none of the first duplication timer and the second duplication timer expires and based on the decoding result, generate the third transmission comprising the duplication of the first HARQ feedback and the duplication of the second HARQ feedback, wherein the duplication of the first HARQ feedback is contained in a first reserved bit in a MAC protocol data unit, PDU, header of the third transmission, and the duplication of the second HARQ feedback is contained in a second reserved bit in the MAC PDU header of the third transmission, and the order of the first reserved bit and the second reserved bit in the MAC PDU header are preconfigured at the user equipment device and the network device;
and
transmit, to the network device and based on the second control information, the third transmission.

9 more elements

A method comprising:

receiving, by a user equipment from a network device, first control information for scheduling a second transmission of the network device and feedback information associated with the second transmission, and second control information for scheduling a third transmission of the user equipment;
decoding, by the user equipment based on the first control information, the second transmission from the network device;
generating, by the user equipment based on the decoding result, a first transmission comprising the feedback information;
transmitting, by the user equipment to the network device and based on the first control information, the first transmission;
upon transmitting the first transmission, initiating, by the user equipment, at least one duplication timer associated with the duplication of the feedback information, wherein a first HARQ process and a second HARQ process are configured for the user equipment device, and wherein the at least one duplication timer comprises a first duplication timer associated with the first HARQ process, and a second duplication timer associated with the second HARQ process, and wherein the first HARQ process precedes the second HARQ process;
in accordance with a determination that none of the first duplication timer and the second duplication timer expires and based on the decoding result, generating, by the user equipment, the third transmission comprising the duplication of the first HARQ feedback and the duplication of the second HARQ feedback, wherein the duplication of the first HARQ feedback is contained in a first reserved bit in a MAC protocol data unit, PDU, header of the third transmission, and the duplication of the second HARQ feedback is contained in a second reserved bit in the MAC PDU header of the third transmission, and the order of the first reserved bit and the second reserved bit in the MAC PDU header are preconfigured at the user equipment device and the network device;
and
transmitting, by the user equipment, to the network device and based on the second control information, the third transmission.

5 more elements

Dependencies are inferred from the claim text.

Facts

Application: 18/714,263Filed 30 Nov 2021
Published: US 2025/0030508 A123 Jan 2025
Granted: 18 Aug 2026
Term ends: Not estimatedThe source records don’t support an estimate.

Classification8 codes

H04L 1/1858
Arrangements specially adapted for the receiver end: transmission or retransmission of more than one copy of acknowledgement message
H04L 1/1896
Arrangements specially adapted for the transmitter end: aRQ related signaling
H04L 1/1685
Details of the supervisory signal: the supervisory signal being transmitted in response to a specific request, e.g. to a polling signal
H04L 1/188
Arrangements specially adapted for the transmitter end: time-out mechanisms