Methods used in control nodes, and associated control nodes

• US 10,652,751 B2
• Filed: 06/24/2016
• Issued: 05/12/2020
• Est. Priority Date: 06/26/2015
• Status: Active Grant

• Current Assignee: Telefonaktiebolaget LM Ericsson
• Original Assignee: Telefonaktiebolaget LM Ericsson
• Inventors: Li, Gen, Liu, Jinhua
• Primary Examiner(s): Kao, Jutai
• Application Number:
  US15/739,158
• Publication Number:
  US 20180375691A1
• Time in Patent Office: 1,418 Days
• Field of Search: None
• CPC Class Codes: H04L 25/0226 sounding signals per se
• CPC Class Codes: H04W 16/10 Dynamic resource partitioning
• CPC Class Codes: H04W 24/10 Scheduling measurement reports ; Arrangements for measurement reports
• CPC Class Codes: H04W 56/0015 one node acting as a reference for the others
• CPC Class Codes: H04W 72/0453 Resources in frequency domain, e.g. a carrier in FDMA
• CPC Class Codes: H04W 72/541 using the level of interference
• CPC Class Codes: H04W 76/15 Setup of multiple wireless link connections
• CPC Class Codes: H04W 88/10 adapted for operation in multiple networks, e.g. multi-mode access points

Abstract

Method used in a first control node controlling one or more first links among two or more first radio nodes in a first network, and an associated first control node. Transmitting desired sounding and sensing related parameters of the first control node to a second control node controlling one or more second links among two or more second radio nodes in a second network neighboring the first network and operating at the same frequency as the first network. Receiving, from the second control node, sounding and sensing related parameters to be applied to the one or more second links, which are adjusted based on the desired sounding and sensing related parameters of the first control node. Adjusting the desired sounding and sensing related parameters of the first control node, based on the sounding and sensing related parameters to be applied to the one or more second links and applying them.

Claims

1. A method used in a first control node controlling one or more first links among two or more first radio nodes in a first network, wherein the one or more first links are directional links and the two or more first radio nodes utilize beam-forming for directional communication, the method comprising:

transmitting a first set of sounding and sensing related parameters of the first control node pertaining to the one or more first links to a second control node controlling one or more second links among two or more second radio nodes in a second network neighboring the first network and operating at the same frequency as the first network, wherein the one or more second links are directional links and the two or more second radio nodes utilize beam-forming for directional communication;

receiving, from the second control node, a second set of sounding and sensing related parameters pertaining to the one or more second links, but in which the second set of sounding and sensing related parameters are adjusted based on the first set of sounding and sensing related parameters transmitted from the first control node;

adjusting the first set of sounding and sensing related parameters of the first control node, based on the second set of sounding and sensing related parameters, wherein the adjusting is performed by configuring the first control node for Aligned Directional Sounding and Sensing (ADSS); and

applying the adjusted first set of sounding and sensing related parameters to the one or more first links to determine interference within the first network from the two or more first radio nodes and interference from the two or more second radio nodes of the second network, wherein the applying is implemented using ADSS resource of the first control node.

2. The method according to claim 1,

wherein the first set of sounding and sensing related parameters of the first control node comprises a first sounding and sensing resource parameter for specifying a first sounding and sensing window,

wherein the second set of sounding and sensing related parameters comprises a second sounding and sensing resource parameter for specifying a second sounding and sensing window, and

wherein the adjusting the first set of sounding and sensing related parameters comprises defining a window aligned with the second sounding and sensing window as a sensing window for the two or more first radio nodes sensing a sounding signal transmitted by the one or more second radio nodes.

3. The method according to claim 1, further comprising:

receiving one or more sensing results from each of the two or more first radio nodes serving a receiving node of a link in the first network; and

determining a Directional Link Interference Map (DLIM) based on the received one or more sensing results, wherein the determining is performed as part of the ADSS.

4. A method used in a second control node controlling one or more second links among two or more second radio nodes in a second network, wherein the one or more second links are directional links and the two or more second radio nodes utilize beam-forming for directional communication, the method comprising:

receiving, from a first control node controlling one or more first links among two or more first radio nodes in a first network neighboring the second network and operating at the same frequency as the second network, a first set of sounding and sensing related parameters of the first control node pertaining to the one or more first links, wherein the one or more first links are directional links and the two or more first radio nodes utilize beam-forming for directional communication;

adjusting a second set of sounding and sensing related parameters of the second control node pertaining to the one or more second links, based on the first set of sounding and sensing related parameters of the first control node, wherein the adjusting is performed by configuring the second control node for Aligned Directional Sounding and Sensing (ADSS);

transmitting the adjusted second set of sounding and sensing related parameters to the first control node; and

applying the adjusted second set of sounding and sensing related parameters to the one or more second links to determine interference within the second network from the two or more second radio nodes and interference from the two or more first radio nodes of the first network, wherein the applying is implemented using ADSS resource of the second control node.

5. The method according to claim 4,

wherein the first set of sounding and sensing related parameters of the first control node comprises a first sounding and sensing resource parameter for specifying a first sounding and sensing window,

wherein the second set of sounding and sensing related parameters comprises a second sounding and sensing resource parameter for specifying a second sounding and sensing window, and

wherein the adjusting the second set of sounding and sensing related parameters comprises defining a window aligned with the first sounding and sensing window as a sensing window for the two or more second radio nodes sensing a sounding signal transmitted by the one or more first radio nodes.

6. The method according to claim 5, wherein the adjusting the second set of sounding and sensing related parameters further comprises adjusting the second sounding and sensing window so that the second sounding and sensing window is orthogonal and adjacent to the first sounding and sensing window.

7. The method according to claim 5, wherein the adjusting the second set of sounding and sensing related parameters further comprises adjusting the first and second sounding and sensing windows so that there is an aligned window between the first and second sounding and sensing windows, wherein the aligned window is allocated to one or more second links in the second network, which are not affected by the first network, and to one or more first links in the first network, which are not affected by the second network.

8. The method according to claim 7, wherein a size of the aligned window is negotiated between the first control node and the second control node.

9. The method according to claim 4, further comprising:

receiving one or more sensing results from each of the two or more second radio nodes serving a receiving node of a link in the second network; and

determining a Directional Link Interference Map (DLIM) based on the received one or more sensing results, wherein the determining is performed as part of the ADSS.

10. A first control node controlling one or more first links among two or more first radio nodes in a first network, wherein the one or more first links are directional links and the two or more first radio nodes utilize beam-forming for directional communication, the first control node comprising:

a processor; and

a memory containing instructions which, when executed by the processor, cause the first control node to perform operations to;

transmit a first set of sounding and sensing related parameters of the first control node pertaining to the one or more first links to a second control node controlling one or more second links among two or more second radio nodes in a second network neighboring the first network and operating at the same frequency as the first network, wherein the one or more second links are directional links and the two or more second radio nodes utilize beam-forming for directional communication;

receive, from the second control node, a second set of sounding and sensing related parameters pertaining to the one or more second links, but in which the second set of sounding and sensing related parameters are adjusted based on the first set of sounding and sensing related parameters transmitted from the first control node;

adjust the first set of sounding and sensing related parameters of the first control node, based on the second set of sounding and sensing related parameters, wherein the instructions include a configuration manager of an Aligned Directional Sounding and Sensing (ADSS) manager to adjust configuration of the first control node; and

apply the adjusted first set of sounding and sensing related parameters to the one or more first links to determine interference within the first network from the two or more first radio nodes and interference from the two or more second radio nodes of the second network, wherein the instructions include a resource manager of the ADSS manager to apply resources of the second control node for ADSS.

11. The first control node according to claim 10,

wherein the first set of sounding and sensing related parameters of the first control node comprises a first sounding and sensing resource parameter for specifying a first sounding and sensing window,

wherein the second set of sounding and sensing related parameters comprises a second sounding and sensing resource parameter for specifying a second sounding and sensing window, and

wherein, when adjusting, the instructions further perform operations to define a window aligned with the second sounding and sensing window as a sensing window for the two or more first radio nodes sensing a sounding signal transmitted by the one or more second radio nodes.

12. The first control node according to claim 10, further comprising:

wherein, when receiving, the instructions further perform operations to receive one or more sensing results from each of the two or more first radio nodes serving a receiving node of a link in the first network, and

wherein the instructions include a Directional Link Interference Map (DLIM) manager which, when executed by the processor, perform operations to determine DLIM based on the received one or more sensing results.

13. A second control node controlling one or more second links among two or more second radio nodes in a second network, wherein the one or more second links are directional links and the two or more second radio nodes utilize beam-forming for directional communication, the second control node comprising:

a processor; and

a memory containing instructions which, when executed by the processor, cause the second control node to perform operations to;

receive, from a first control node controlling one or more first links among two or more first radio nodes in a first network neighboring the second network and operating at the same frequency as the second network, a first set of sounding and sensing related parameters of the first control node pertaining to the one or more first links, wherein the one or more first links are directional links and the two or more first radio nodes utilize beam-forming for directional communication;

adjust a second set of sounding and sensing related parameters of the second control node pertaining to the one or more second links, based on the first set of sounding and sensing related parameters of the first control node, wherein the instructions include a configuration manager of an Aligned Directional Sounding and Sensing (ADSS) manager to adjust configuration of the second control node;

transmit the adjusted second set of sounding and sensing related parameters to the first control node; and

apply the adjusted second set of sounding and sensing related parameters to the one or more second links to determine interference within the second network from the two or more second radio nodes and interference from the two or more first radio nodes of the first network, wherein the instructions include a resource manager of the ADSS manager to apply resources of the second control node for ADSS.

14. The second control node according to claim 13,

wherein the first set of sounding and sensing related parameters of the first control node comprises a first sounding and sensing resource parameter for specifying a first sounding and sensing window,

wherein the second set of sounding and sensing related parameters comprises a second sounding and sensing resource parameter for specifying a second sounding and sensing window, and

wherein, when adjusting, the instructions further perform operations to define a window aligned with the first sounding and sensing window as a sensing window for the two or more second radio nodes sensing a sounding signal transmitted by the one or more first radio nodes.

15. The second control node according to claim 14, wherein, when adjusting, the instructions further perform operations to adjust the second sounding and sensing window so that the second sounding and sensing window is orthogonal and adjacent to the first sounding and sensing window.

16. The second control node according to claim 14,

wherein, when adjusting, the instructions further perform operations to adjust the first and second sounding and sensing windows so that there is an aligned window between the first and second sounding and sensing windows, and

wherein the aligned window is allocated to one or more second links in the second network, which are not affected by the first network, and to one or more first links in the first network, which are not affected by the second network.

17. The second control node according to claim 16, wherein a size of the aligned window is negotiated between the first control node and the second control node.

18. The second control node according to claim 13, further comprising:

wherein, when receiving, the instructions further perform operations to receive one or more sensing results from each of the two or more second radio nodes serving a receiving node of a link in the second network, and

wherein the instructions include a Directional Link Interference Map (DLIM) manager which, when executed by the processor, perform operations to determine DLIM based on the received one or more sensing results.