Methods and apparatuses for coordinating resource scheduling between wireless networks

Patent metadata

Field	Value
Publication number	US-10004084-B2
Application number	US-201415111171-A
Country	US
Kind code	B2
Filing date	Jan 21, 2014
Priority date	Jan 21, 2014
Publication date	Jun 19, 2018
Grant date	Jun 19, 2018

Abstract

Methods and apparatuses for coordinating resource scheduling between wireless networks are provided. The method comprises detecting whether interference on at least one interfered wireless link in the wireless network caused by at least one interfering wireless link in at least one second wireless network exceeds a pre-determined threshold. The method also comprises initiating a resource coordination procedure with the at least one second wireless network by transmitting a resource coordination message to the at least one second wireless network when the interference exceeds the pre-determined threshold. The method further comprises performing, based on the resource coordination message, the resource coordination procedure with the at least one second wireless network to determine schedulable resources. The method additionally comprises scheduling the at least one interfered wireless link based on the determined schedulable resources.

First claim

What is claimed is:

1. A method for use in a wireless network for coordinating resource scheduling between two or more wireless networks which operate on same or overlapping radio resources, wherein each wireless network comprises one or more radio access nodes and one or more terminal devices connected thereto, the method comprising:
detecting whether interference on at least one interfered wireless link in the wireless network caused by at least one interfering wireless link in at least one second wireless network exceeds a pre-determined threshold;
initiating a resource coordination procedure with the at least one second wireless network by transmitting a resource coordination message to the at least one second wireless network when the interference exceeds the pre-determined threshold;
performing, based on the resource coordination message, the resource coordination procedure with the at least one second wireless network to determine schedulable resources; and
scheduling the at least one interfered wireless link based on the determined schedulable resources.

2. The method according to claim 1 , wherein the resource coordination message indicates which radio resources are schedulable to the at least one interfered wireless link and the at least one interfering wireless link and wherein the radio resources schedulable to the at least one interfered wireless link and the radio resources schedulable to the at least one interfering wireless link are at least partially orthogonal to each other.

3. The method according to claim 2 , wherein the resource coordination message comprises a bit sequence in which each bit is indicative of whether a radio resource in at least one of a time domain, a frequency domain, a power domain, and a code domain is schedulable to the at least one interfered wireless link or schedulable to the at least one interfering wireless link.

4. The method according to claim 2 , wherein the performing the resource coordination procedure with the at least one second wireless network comprises:
receiving from the at least one second wireless network a response to the resource coordination message, wherein the response includes one of an acknowledgement, a negative acknowledgement and an update to the determined schedulable resources; and
transmitting an updated resource coordination message to the at least one second wireless network when the response includes one of the negative acknowledgement and the update, or
transmitting to the at least one second wireless network an acknowledgement message to the response.

5. The method according to claim 1 , wherein the performing the resource coordination procedure with the at least one second wireless network comprises:
transmitting, when the interference falls below the pre-determined threshold or does no longer occur for a pre-determined period of time, or the determined schedulable resources become invalid, to the at least one second wireless network a coordinated resource release message to release at least some of the coordinated resources or an updated resource coordination message to update at least some of the coordinated resources.

6. A method for use in a wireless network for coordinating resource scheduling between two or more wireless networks which operate on same or overlapping radio resources, wherein each wireless network comprises one or more radio access nodes and one or more terminal devices connected thereto, the method comprising:
receiving a resource coordination message to initiate a resource coordination procedure with at least one second wireless network, wherein the resource coordination message is received from the at least one second wireless network when interference caused by at least one interfering wireless link in the wireless network on at least one interfered wireless link in the at least one second wireless network exceeds a pre-determined threshold;
performing, based on the resource coordination message, the resource coordination procedure with the at least one second wireless network to determine schedulable resources; and
scheduling the at least one interfering wireless link based on the determined schedulable resources.

7. The method according to claim 6 , wherein the resource coordination message indicates which radio resources are schedulable to the at least one interfered wireless link and the at least one interfering wireless link and wherein the radio resources schedulable to the at least one interfered wireless link and the radio resources schedulable to the at least one interfering wireless link are at least partially orthogonal to each other.

8. The method according to claim 7 , wherein the resource coordination message comprises a bit sequence in which each bit is indicative of whether each radio resource in at least one of a time domain, a frequency domain, a power domain and a code domain is schedulable to the at least one interfered wireless link or schedulable to the at least one interfering wireless link.

9. The method according to claim 6 , wherein the performing the resource coordination procedure with the at least one second wireless network comprises:
transmitting to the at least one second wireless network a response to the resource coordination message, wherein the response includes one of an acknowledgement, a negative acknowledgement and an update to the schedulable resources; and
receiving an updated resource coordination message from the at least one second wireless network when the response includes one of the negative acknowledgement and the update, or
receiving from the at least one second wireless network an acknowledgement message to the response.

10. The method according to claim 6 , wherein the performing the resource coordination procedure with the at least one second wireless network comprises:
receiving, when the interference falls below the pre-determined threshold or does no longer occur for a pre-determined period of time, or the determined schedulable resources become invalid, from the at least one second wireless network, a coordinated resource release message to release the coordinated resources or an updated resource coordination message to update at least some of the coordinated resources.

11. An apparatus for coordinating resource scheduling between two or more wireless networks which operate on same or overlapping radio resources, wherein each wireless network comprises one or more radio access nodes and one or more terminal devices connected thereto, the apparatus comprising:
at least one processor;
at least one memory including computer program code,
wherein the at least one memory and the computer program code are configured to, with the at least one processor, cause the apparatus at least to:
detect whether interference on at least one interfered wireless link in a wireless network caused by at least one interfering wireless link in at least one second wireless network exceeds a pre-determined threshold;
initiate a resource coordination procedure with the at least one second wireless network by transmitting a resource coordination message to the at least one second wireless network when the interference exceeds the pre-determined threshold;
perform, based on the resource coordination message, the resource coordination procedure with the at least one second wireless network to determine schedulable resources; and
schedule the at least one interfered wireless link based on the determined schedulable resources.

12. The apparatus according to claim 11 , wherein the resource coordination message indicates which radio resources are schedulable to at least one of the at least one interfered wireless link and the at least

Assignees

• Ericsson Telefon Ab L M

Inventors

• Li Gen
• Irnich Tim
• Shi Cong

Classifications

• H04W72/1215 Primary

  for collaboration of different radio technologies · CPC title

• H04W16/10

  Dynamic resource partitioning · CPC title

• H04W16/14

  Spectrum sharing arrangements {between different networks} · CPC title

• H04W72/541

  using the level of interference · CPC title

• H04W72/082

  Electricity · mapped topic