Method and apparatus for operating configuration adaptation for interruption of signal transmission

• US 10,484,240 B2
• Filed: 12/21/2018
• Issued: 11/19/2019
• Est. Priority Date: 11/29/2011
• Status: Active Grant

• Current Assignee: Telefonaktiebolaget LM Ericsson
• Original Assignee: Telefonaktiebolaget LM Ericsson
• Inventors: Kazmi, Muhammad, Axmon, Joakim, Muller, Walter
• Primary Examiner(s): Brockman, Angel T
• Application Number:
  US16/229,708
• Publication Number:
  US 20190149412A1
• Time in Patent Office: 333 Days
• CPC Class Codes: H04L 41/0816 the condition being an adaptation, e.g. in response to network events
• CPC Class Codes: H04W 24/04 Arrangements for maintaining operational condition
• CPC Class Codes: H04W 28/06 Optimizing the usage of the radio link, e.g. header compression, information sizing , discarding information system modifying transmission characteristic according to link quality by modifying frame length H04L1/0007; dynamic adaptation of the packet size for flow control or congestion control H04L47/365
• CPC Class Codes: H04W 28/18 Negotiating wireless communication parameters

Abstract

The operating configuration at a node in a wireless communication network, at a neighboring node in the network, and/or at one or more wireless devices supported by the network, is updated based on determining timing information for an impending interruption of a radio link in the network to avoid erroneous operation during the impending interruption, which interruption is associated with an external system. The determination of interruption timing, which may be inferred, e.g., from detecting prior interruptions, or which may be known from information about the external system, and the modification of the operating configuration(s) permits the network to operate with greater stability, control, and accuracy during the interruptions than would be possible if the interruptions were simply treated as intermittent radio link failures.

Claims

1. A method in a node in a wireless communication network comprising:

obtaining timing information for an external wireless system whose operation is associated with intermittent interruptions of a radio link of the wireless communication network;

determining an interruption timing from the timing information, wherein the interruption timing is referenced to a radio link timing and indicates an impending interruption of the radio link; and

adapting, based on the timing information, an operating configuration at any one or more of the node, a neighboring node, and one or more wireless devices in communication with the wireless communication network, to avoid erroneous operation during the impending interruption.

2. The method of claim 1, wherein obtaining the timing information for the external system comprises receiving the timing information from another node in the wireless communication network.

3. The method of claim 1, wherein determining the interruption timing from the timing information comprises determining at least one of:

a reference time for the impending interruption according to a reference cell timing in the wireless communication network;

a periodicity of the impending interruption;

a duration or width of the impending interruption; and

a total time period over which the impending interruption will occur.

4. The method of claim 1, wherein determining the interruption timing from the timing information comprises determining the interruption timing in terms of a System Frame Number (SFN), which identifies radio link frames at which system information is transmitted.

5. A node configured for operation in a wireless communication network and comprising:

one or more communication interfaces configured to communicate with one or more wireless devices, and further configured to communicate with one or more other nodes in the wireless communication network; and

one or more processing circuits that are operatively associated with the one or more communication interfaces and configured to;

obtain timing information for an external system whose operation is associated with intermittent interruptions of a radio link of the wireless communication network;

determine an interruption timing from the timing information, wherein the interruption timing is referenced to a radio link timing and indicates an impending interruption of the radio link; and

adapt, based on the timing information, an operating configuration at any one or more of the node, a neighboring node, and the one or more wireless devices, to avoid erroneous operation during the impending interruption.

6. The node of claim 5, wherein the one or more processing circuits are configured to determine the interruption timing from the timing information by determining at least one of:

a reference time for the impending interruption according to a reference cell timing in the wireless communication network;

a periodicity of the impending interruption;

a duration or width of the impending interruption; and

a total time period over which the impending interruption will occur.

7. The node of claim 5, wherein the one or more processing circuits are configured to determine the interruption timing from the timing information by determining the interruption timing in terms of a System Frame Number (SFN), which identifies radio link frames at which system information is transmitted.

8. A method at a wireless device configured for operation with a wireless communication network comprising:

receiving signaling indicating an interruption timing for an impending interruption of a radio link, or otherwise including one or more configuration parameters determined in consideration of the interruption timing;

modifying an operating configuration of the wireless device according to the signaling, so that the wireless device will avoid erroneous operation during the impending interruption; and

operating according to the modified operating configuration.

9. A wireless device configured for operation with a wireless communication network and comprising:

a communication interface configured to receive signaling indicating an interruption timing for an impending interruption of a radio link, or otherwise including one or more configuration parameters determined in consideration of the interruption timing; and

one or more processing circuits configured to;

modify an operating configuration of the wireless device according to the signaling, so that the wireless device will avoid erroneous operation during the impending interruption; and

operate the wireless device according to the modified operating configuration.