Controlling traffic and interference in a communications network

Patent metadata

Field	Value
Publication number	US-12356441-B2
Application number	US-201917765060-A
Country	US
Kind code	B2
Filing date	Sep 30, 2019
Priority date	Sep 30, 2019
Publication date	Jul 8, 2025
Grant date	Jul 8, 2025

Abstract

Methods, nodes, computer programs and communication networks are disclosed. The disclosure provides a method performed by a network node for controlling traffic in a communications network, the communications network comprising a wireless access node adapted to serve a plurality of wireless devices. The method comprises obtaining network operation data for at least one of the plurality of wireless devices, the network operation data comprising location of the respective wireless device and performance data correlated with the location, the network operation data being indicative of a plurality of attributes corresponding to the operation of the respective wireless device in the communications network. The method also comprises grouping the at least one wireless device of the plurality of wireless devices by partitioning the network operation data into one or more service clusters wherein each service cluster defines a geographical area based on the obtained location. The method also comprises scheduling network traffic between the wireless access node and at least one wireless device depending on the location of the at least one wireless device relative to the one or more service clusters.

First claim

The invention claimed is:

1. A method performed by a network node for controlling traffic in a communications network, the communications network comprising a wireless access node adapted to serve a plurality of wireless devices, the method comprising the steps of:
obtaining network operation data for at least one of the plurality of wireless devices, the network operation data comprising location of the respective wireless device and performance data correlated with the location, the network operation data being indicative of a plurality of attributes corresponding to operation of the respective wireless device in the communications network, the network operation data comprising hand-over data indicative of a likelihood of hand-over of the at least one wireless device;
grouping the at least one wireless device of the plurality of wireless devices by partitioning the network operation data into one or more service clusters, wherein each service cluster defines a geographical area based on the obtained location;
based on the location of the at least one wireless device relative to the one or more service clusters, scheduling network traffic between the wireless access node and at least one wireless device when the hand-over data indicates a likely hand-over for the respective wireless device by:
determining whether network traffic to be transmitted before the handover of the wireless device to another cell is mission critical,
when network traffic is determined to be mission critical, accelerating initiation of transmission of the network data, or
when network traffic is determined not to be mission critical, buffering network data.

2. A network node of a communication network, the communications network comprising a wireless access node adapted to serve a plurality of wireless devices, the network node comprising processing circuitry and a memory containing instructions executable by the processing circuitry, whereby the network node is operable to:
obtain network operation data for at least one of the plurality of wireless devices, the network operation data comprising location of the respective wireless device and performance data correlated with the location, the network operation data being indicative of a plurality of attributes corresponding to operation of the respective wireless device in the communications network, the network operation data comprising hand-over data indicative of a likelihood of hand-over of the at least one wireless device,
group the at least one wireless device of the plurality of wireless devices by partitioning the network operation data into one or more service clusters wherein each service cluster defines a geographical area based on the obtained location;
based on the location of the at least one wireless device relative to the one or more service clusters, schedule network traffic between the wireless access node and at least one wireless device when the hand-over data indicates a likely hand-over for the respective wireless device by:
determining whether network traffic to be transmitted before the handover of the wireless device to another cell is mission critical,
when network traffic is determined to be mission critical, accelerating initiation of transmission of the network data, or
when network traffic is determined not to be mission critical, buffering network data.

3. A network node according to claim 2 , further operable to associate a service quality level to the one or more of service clusters.

4. A network node according to claim 3 , wherein the service quality level is indicative of interference experienced by the wireless devices belonging to the respective service cluster.

5. A network node according to claim 3 , operable to schedule network traffic between the wireless access node and at least one wireless device in accordance with a network traffic scheduling strategy indicative of the service quality level prioritized for the communications network.

6. A network node according to claim 2 , wherein the one or more service clusters includes data samples of the network operation data that show similarity across multiple dimensions.

7. A network node according to claim 6 , operable to partition the network operation data into one or more service clusters by training a clustering function using a first machine learning algorithm based on the network operation data.

8. A network node according to claim 2 , wherein the performance data comprises at least one of: received radio signal quality data measured at the respective wireless device, data throughput and battery data indicative of energy consumption of the respective wireless device.

9. A network node according to claim 2 , wherein the performance data further comprises at least one of: a number of wireless devices being served by the wireless access node and energy consumption data indicative of energy consumption of the wireless access node.

10. A network node according to claim 2 , operable to schedule network traffic between the wireless access node and at least one wireless device by training a decision tree function using a second machine learning algorithm based on the network operation data and the one or more service clusters.

11. A network node according to claim 3 , operable to schedule network traffic between the wireless access node and at least one wireless device by:
accelerating initiation of transmission of network resource-intensive data when the at least one wireless device belongs to a first service cluster of a first service quality level;
buffering network resource-intensive data when the at least one wireless device belongs to a second service cluster of a second service quality level; and
wherein the first service quality level is greater than the second service quality level.

12. A network node according to claim 11 , operable to obtain a quality class identifier, QCI, for the at least one wireless device, wherein the mission critical traffic is determined based on the value of the QCI.

13. A network node according to claim 2 , operable to obtain the location of the at least one wireless device by approximating the location of the at least one wireless device based on a first signal and second signal received by the respective wireless device, wherein the first signal and second signal each originate at separate wireless access nodes.

14. A network node according to claim 2 , operable to obtain the location of the at least one wireless device by calculating location using a GNSS receiver of the at least one wireless device.

15. A network node according to claim 2 , operable to obtain the location of the at least one wireless device by approximating the location of the at least one wireless device based on an elevation and azimuth of a radio beam transmitted towards the respective wireless device from the wireless access node.

16. A network node according to claim 2 , wherein the network node is a wireless access node.

17. A non-transitory computer readable medium comprising a computer program for controlling traffic in a communications network, the computer program comprising computer code which, when run on processing circuitry of a network node, causes the network node to:
obtain network operation data for at least one of the plurality of wireless devices, the network operation data comprising location of the respective wireless device and performance data correlated with the location, the network operation data being indicative of a plurality of attributes corresponding to operation of the respective wireless device in the communications networ

Assignees

• Ericsson Telefon Ab L M

Inventors

• Eleftheriadis Lackis
• Karapantelakis Athanasios
• Dixit Gaurav

Classifications

• H04W72/56

  based on priority criteria · CPC title

• H04W72/121

  for groups of terminals or users · CPC title

• H04W28/0268

  using specific QoS parameters for wireless networks, e.g. QoS class identifier [QCI] or guaranteed bit rate [GBR] (negotiating SLA or negotiating QoS H04W28/24) · CPC title

• H04W28/0226

  based on location or mobility (handoff or reselection H04W36/00; mobile application services making use of the location of users or terminals H04W4/02) · CPC title

• H04W72/51

  based on terminal or device properties · CPC title