Granted Patent B2

US 12,732,309 · App. 17/997,719 · Granted Sep 8, 2026

Inventors: David Navrátil (Helsinki, FI); David Bhatoolaul (Swindon, GB); Rapeepat Ratasuk (Inverness, IL); Fasil Berhanu Tesema (Munich, DE); Volker Pauli (Ansbach, DE)

Assignee: Nokia Technologies Oy

H04L1/1854H04L1/1812H04L1/1896H04W24/02

Abstract

Claims (46)

1 . An apparatus, comprising:

at least one processor; and

at least one memory including computer program code;

the at least one memory and the computer program code configured to, with the at least one processor, cause the apparatus at least to:

receive aggregated feedback configured for point-to-multipoint from a plurality of user equipment, wherein the aggregated feedback includes at least one extensive negative acknowledgement from one user equipment of the plurality of user equipment in a worse channel condition, wherein the worse channel condition corresponds to a user equipment that produces Hybrid Automatic Repeat reQuests-Negative Acknowledgements (HARQ NACKs) for which an estimated retransmission delay is determined to cause a greatest number of violations of a quality-of-service (QoS) delay budget requirement of the service;

identify the one user equipment of the plurality of user equipment with the worse channel condition;

determine that point-to-point efficiency is greater than point-to-multipoint efficiency for the one user equipment; and

switch the one user equipment from point-to-multipoint to point-to-point when the point-to-point efficiency is greater than the point-to-multipoint efficiency.

2 . The apparatus of claim 1 , further comprising:

transmit at least one reconfiguration message to the one user equipment.

3 . An apparatus, comprising:

at least one processor; and

at least one memory including computer program code;

the at least one memory and the computer program code configured to, with the at least one processor, cause the apparatus at least to:

determine at least one aggregated feedback timing for at least one single cell point-to-multipoint bearer;

transmit at least one notification to a plurality of user equipment with the determined at least one aggregated feedback timing;

receive aggregated feedback comprising at least one of hybrid automatic repeat request acknowledgement or negative acknowledgement from the plurality of user equipment receiving the at least one single cell point-to-multipoint bearer;

receive at least one negative acknowledgement that is an extensive negative acknowledgement in the aggregated feedback from one user equipment of the plurality of user equipment in a worse channel condition, wherein the worse channel condition corresponds to a user equipment that produces Hybrid Automatic Repeat reQuests-Negative Acknowledgements (HARQ NACKs) for which an estimated retransmission delay is determined to cause a greatest number of violations of a quality-of-service (QoS) delay budget requirement of the service;

identify the one user equipment in the worse channel condition; and

adjust the at least one aggregated feedback timing based on the quality of service delay budget requirement of the service.

4 . An apparatus, comprising:

at least one processor; and

at least one memory including computer program code;

the at least one memory and the computer program code configured to, with the at least one processor, cause the apparatus at least to:

receive at least one notification from at least one network entity with aggregate feedback timing;

transmit at least one aggregated feedback comprising at least one of hybrid automatic repeat request acknowledgement or negative acknowledgement feedback;

transmit at least one extensive negative acknowledgement in the aggregated feedback to the at least one network entity from one user equipment of a plurality of user equipment in a worse channel condition, wherein the worse channel condition corresponds to a user equipment that produces Hybrid Automatic Repeat reQuests-Negative Acknowledgements (HARQ NACKs) for which an estimated retransmission delay is determined to cause a greatest number of violations of a quality-of-service (QoS) delay budget requirement of the service; and

adjust at least one aggregated feedback timing based on the quality of service delay budget requirement of the service.

5 . The apparatus of claim 4 , wherein the at least one notification is in response to determination, by the at least one network entity, determining that point-to-point spectral efficiency is higher than point-to-multipoint spectral efficiency.

6 . The apparatus of claim 5 , further comprising: wherein the at least one processor, further causes the apparatus at least to switch from point-to-multipoint to point-to-point in response to the at least one notification.

7 . A method, comprising:

receiving, by a network entity, aggregated feedback configured for point-to-multipoint from a plurality of user equipment, wherein the aggregated feedback includes at least one extensive negative acknowledgement from one user equipment of the plurality of user equipment in a worse channel condition, wherein the worse channel condition corresponds to a user equipment that produces Hybrid Automatic Repeat reQuests-Negative Acknowledgements (HARQ NACKs) for which an estimated retransmission delay is determined to cause a greatest number of violations of a quality-of-service (QoS) delay budget requirement of the service;

identifying, by the network entity, the one user equipment;

determining, by the network entity, that point-to-point efficiency is greater than point-to-multipoint efficiency for the one user equipment; and

switching, by the network entity, the one user equipment from point-to-multipoint to point-to-point when the point-to-point efficiency is greater than the point-to-multipoint efficiency.

8 . The method of claim 7 , further comprising:

transmitting, by the network entity, at least one reconfiguration message to the one user equipment.

9 . A method, comprising:

determining, by a network entity, at least one aggregated feedback timing for at least one single cell point-to-multipoint bearer;

transmitting, by the network entity, at least one notification to a plurality of user equipment with the determined at least one aggregated feedback timing;

receiving, by the network entity, aggregated feedback comprising at least one of hybrid automatic repeat request acknowledgement or negative acknowledgement from the plurality of user equipment receiving the at least one single cell point-to-multipoint bearer;

receiving at least one extensive negative acknowledgement in the aggregated feedback from one user equipment of the plurality of user equipment in a worse channel condition, wherein the worse channel condition corresponds to a user equipment that produces Hybrid Automatic Repeat reQuests-Negative Acknowledgements (HARQ NACKs) for which an estimated retransmission delay is determined to cause a greatest number of violations of a quality-of-service (QoS) delay budget requirement of the service;

identifying the one user equipment in the worse channel condition; and

adjusting the at least one aggregated feedback timing based on the quality of service delay budget requirement of the service.

10 . The method of claim 9 , further comprising:

determining, by the network entity, the aggregate feedback timing based on: quality of service requirement, delay budget, the received hybrid automatic repeat request acknowledgement or negative acknowledgement, capacity of feedback channel, and scheduling of the at least one single cell point-to-multipoint bearer.

Assignments (4)

Continuity (1)

References Cited (33)