Compensating for interruptions in a wireless connection

Patent metadata

Field	Value
Publication number	US-2021185151-A1
Application number	US-201816758940-A
Country	US
Kind code	A1
Filing date	Oct 15, 2018
Priority date	Oct 27, 2017
Publication date	Jun 17, 2021
Grant date	—

Abstract

A method of compensating for potential interruptions in a wireless spatially selective connection over which data at a first compression level is transmitted from a host device to a client device involves determining (S32) that an interruption to the wireless spatially selective connection over which data is being transmitted at a first compression level to a client device is starting or is due to start, compressing (S3Y3) the data at a second compression level that is higher than the first compression level, and forwarding (S34) the data compressed at the second compression level to a transmitting component for wireless spatially non-selective broadcast while the interruption to the spatially selective connection occurs. Determining that the interruption is due to start may involve analysing a historical record of previous interruptions to determine a periodicity of the previous interruptions or receiving information from the transmitting component that an interruption is expected to occur. Determining that the interruption is starting may involve determining that a buffer used for storing the data prior to transmittal is full, indicative that an interruption has commenced, or receiving information from the transmitting component that an interruption has commenced.

First claim

1 . A method of compensating for potential interruptions in a wireless spatially selective connection over which data at a first compression level is transmitted from a host device to a client device, the method comprising:
determining that an interruption to the wireless spatially selective connection over which data is being transmitted at a first compression level to a client device is starting or is due to start; compressing the data at a second compression level that is higher than the first compression level; and forwarding the data compressed at the second compression level to a transmitting component for wireless spatially non-selective broadcast while the interruption to the wireless spatially selective connection occurs.

2 . The method of claim 1 , wherein determining that the interruption is due to start comprises analysing a historical record of previous interruptions to determine a periodicity of the previous interruptions and using the determined periodicity to calculate when a next interruption may be expected, wherein a duration of the potential interruption may be calculated based on the determined periodicity and the compressing the data at the second compression level and forwarding the data compressed at the second level for the wireless spatially non-selective broadcast may be performed at least for the calculated duration of the interruption.

3 . (canceled)

4 . The method of claim 1 , wherein determining that the interruption is starting is determined by determining that a buffer used for storing the data prior to transmittal is full, indicative that an interruption has commenced, optionally further comprising determining an end of the interruption by determining that the buffer is able to accept data at a rate higher than a predetermined threshold rate and the compressing the data at the second compression level and forwarding the data compressed at the second level for the wireless spatially non-selective broadcast is performed at least until the end of the interruption.

5 . (canceled)

6 . The method of claim 1 , wherein determining that the interruption is due to start comprises receiving information from the transmitting component that an interruption is expected to occur, wherein a duration of the potential interruption may be determined by receipt of information from the transmitting component of an expected duration of the potential interruption and the compressing the data at the second compression level and forwarding the data compressed at the second level for the wireless spatially non-selective broadcast may be performed at least for the duration of the interruption.

7 . (canceled)

8 . The method of claim 1 , wherein determining that the interruption is starting comprises receiving information from the transmitting component that an interruption has commenced, wherein an end of the interruption may be determined by receipt of information from the transmitting component that the interruption has ended and the compressing the data at the second compression level and forwarding the data compressed at the second level for the wireless spatially non-selective broadcast may be performed at least until the end of the interruption.

9 . (canceled)

10 . The method of claim 1 , wherein the interruption occurs for a predetermined duration and the compressing the data at the second compression level and forwarding the data compressed at the second level for the wireless spatially non-selective broadcast is performed at least until an expected end of the interruption.

11 . The method of claim 1 , further comprising transmitting the data at the first compression level over the wireless spatially selective connection to the client device when it is determined that the interruption has finished.

12 . The method of claim 1 , wherein the data comprises display data, wherein the display data is optionally compressed at the second compression level at least until an end of a frame of the display data that is being compressed at the second compression level.

13 . (canceled)

14 . The method of claim 1 , wherein the first compression level comprises a zero compression level, with no compression at all.

15 . The method of claim 1 , further comprising:
performing one or more maintenance operations that cause the interruption; and setting the first compression level for compressing the data when the maintenance operation is completed, wherein the one or more maintenance operations may comprise any one or more of: beamforming; transmission/reception channel changing; entering a power-reduced mode of operation; entering a sleep mode of operation.

16 . (canceled)

17 . The method of claim 1 , wherein the wireless spatially selective connection comprises one or more of:
a connection in the millimetre wavelength spectrum (10-100 GHz), for example the 60 GHz wavelength band; and a connection compliant with the IEEE 802.11ad standard or the IEEE 802.11aj or 802.11ay standards; and a line-of-sight connection, for example an optical connection.

18 . (canceled)

19 . (canceled)

20 . (canceled)

21 . The method of claim 1 , wherein the wireless spatially non-selective broadcast comprises one or more of:
a broadcast in a 2.4 or 5 GHz wavelength band; and a broadcast compliant with the IEEE 802.11ac standard or the IEEE 802.11ax standard.

22 . (canceled)

23 . A system for compensating for potential interruptions in a wireless spatially selective connection over which data at a first compression level is transmitted from a host device to a client device, the host device comprising a compression engine configured to:
determine that an interruption to the wireless spatially selective connection over which data is being transmitted at a first compression level to the client device is starting or is due to start; compress the data at a second compression level that is higher than the first compression level; and forward the data compressed at the second compression level to a transmitting component for wireless spatially non-selective broadcast while the interruption to the wireless spatially selective connection occurs.

24 . A non-transitory computer readable medium including executable instructions which, when executed in a processing system, cause the processing system to perform a method comprising:
determining that an interruption to the wireless spatially selective connection over which data is being transmitted at a first compression level to a client device is starting or is due to start; compressing the data at a second compression level that is higher than the first compression level; and forwarding the data compressed at the second compression level to a transmitting component for wireless spatially non-selective broadcast while the interruption to the wireless spatially selective connection occurs.

25 . The system of claim 23 , wherein the compression engine is configured to determine that the interruption is due to start by analysing a historical record of previous interruptions to determine a periodicity of the previous interruptions and using the determined periodicity to calculate when a next interruption may be expected, wherein a duration of the potential interruption may be calculated based on the determined periodicity and the compressing the data at the second compression level and forwarding the data compressed at the second level for the wireless spatially non-se

Assignees

• Displaylink Uk Ltd

Inventors

• Diodge Ian Christopher

Classifications

• H04N19/127 Primary

  Prioritisation of hardware or computational resources · CPC title

• H04N19/115

  Selection of the code volume for a coding unit prior to coding · CPC title

• G06T9/00

  Image coding (bandwidth or redundancy reduction for static pictures H04N1/41; coding or decoding of static colour picture signals H04N1/64; methods or arrangements for coding, decoding, compressing or decompressing digital video signals H04N19/00) · CPC title

• H04N19/172

  the region being a picture, frame or field · CPC title

• H04N19/156

  Availability of hardware or computational resources, e.g. encoding based on power-saving criteria · CPC title