Method for controlling transmission rate and wlan device using the same

Patent metadata

Field	Value
Publication number	US-2017201901-A1
Application number	US-201715401161-A
Country	US
Kind code	A1
Filing date	Jan 9, 2017
Priority date	Jan 13, 2016
Publication date	Jul 13, 2017
Grant date	—

Abstract

A method for controlling transmission rate and a wireless local area network (WLAN) device are provided. The method for controlling transmission rate includes the following steps. Calculate a bandwidth requirement of the WLAN device according to a network application service provided by the WLAN device in an application layer. Determine a WLAN data transmission rate of the WLAN device in a physical layer according to the bandwidth requirement.

First claim

What is claimed is:

1 . A method for controlling transmission rate used in a WLAN device, the method comprising:
calculating a bandwidth requirement of the WLAN device according to a network application service provided by the WLAN device in an application layer; and determining a WLAN data transmission rate of the WLAN device in a physical layer according to the bandwidth requirement.

2 . The method according to claim 1 , wherein the step of determining the WLAN data transmission rate of the WLAN device in the physical layer comprises:
decreasing the WLAN data transmission rate if the WLAN data transmission rate is currently greater than the bandwidth requirement.

3 . The method according to claim 1 , wherein the WLAN data transmission rate has a plurality of levels, the step of determining the WLAN data transmission rate of the WLAN device in the physical layer comprises:
obtaining a current level of the WLAN data transmission rate; obtaining a next level that is lower than the current level; and setting the WLAN data transmission rate to the next level if the current level is greater than the bandwidth requirement and the next level is greater than the bandwidth requirement.

4 . The method according to claim 1 , wherein the step of determining the WLAN data transmission rate of the WLAN device in the physical layer comprises:
increasing the WLAN data transmission rate if the WLAN data transmission rate is currently not greater than the bandwidth requirement.

5 . The method according to claim 1 , wherein the step of determining the WLAN data transmission rate of the WLAN device in the physical layer comprises:
increasing the WLAN data transmission rate if the WLAN data transmission rate is currently not greater than the bandwidth requirement and the WLAN data transmission rate is currently not determined according to the physical layer environment.

6 . The method according to claim 1 , wherein the WLAN device is configured to provide a streaming service, and the step of calculating a bandwidth requirement of the WLAN device comprises:
obtaining a current streaming configuration of the streaming service, and determining the bandwidth requirement according to the current streaming configuration.

7 . A WLAN device, comprising:
a transmission unit, configured to transmit WLAN data with a WLAN data transmission rate; and a processing unit, configured to calculate a bandwidth requirement of the WLAN device according to a network application service provided by the WLAN device in an application layer, and to determine the WLAN data transmission rate of the WLAN device in a physical layer according to the bandwidth requirement.

8 . The WLAN device according to claim 7 , wherein the processing unit is configured to decrease the WLAN data transmission rate if the processing unit determines that the WLAN data transmission rate is currently greater than the bandwidth requirement.

9 . The WLAN device according to claim 7 , wherein the WLAN data transmission rate has a plurality of levels, and the processing unit is further configured to:
obtain a current level of the WLAN data transmission rate; obtain a next level that is lower than the current level; and set the WLAN data transmission rate to the next level if the current level is greater than the bandwidth requirement and the next level s greater than the bandwidth requirement.

10 . The WLAN device according to claim 7 , wherein the processing unit is configured to increase the WLAN data transmission rate if the processing unit determines that the WLAN data transmission rate is currently not greater than the bandwidth requirement.

11 . The WLAN device according to claim 7 , wherein the processing unit is configured to increase the WLAN data transmission rate if the processing unit determines that the WLAN data transmission rate is currently not greater than the bandwidth requirement and the WLAN data transmission rate is currently not determined according to the physical layer environment.

12 . The WLAN device according to claim 7 , wherein the WLAN device is configured to provide a streaming service, and the processing unit is further configured to obtain a current streaming configuration of the streaming service and to determine the bandwidth requirement according to the current streaming configuration.

Assignees

• Sercomm Corp

Inventors

• Zhao Shao-Hai

Classifications

• H04L1/0002 Primary

  by adapting the transmission rate · CPC title

• H04W84/12

  WLAN [Wireless Local Area Networks] · CPC title

• H04W28/02 Primary

  Traffic management, e.g. flow control or congestion control · CPC title

• H04L47/25

  with rate being modified by the source upon detecting a change of network conditions · CPC title