Monitoring and management of links in a wireless network

• US 9,775,054 B1
• Filed: 03/15/2013
• Issued: 09/26/2017
• Est. Priority Date: 03/15/2013
• Status: Active Grant

• Current Assignee: Time Warner Cable Enterprises LLC (Charter Communications Incorporated)
• Original Assignee: Time Warner Cable Enterprises LLC (Charter Communications Incorporated)
• Inventors: Srivastava, Praveen C., Gupta, Sourabh, Gangadhar, Rajesh M.
• Primary Examiner(s): Ngo, Ricky
• Assistant Examiner(s): Kao, Wei-Po
• Application Number:
  US13/837,768
• Time in Patent Office: 1,656 Days
• Field of Search: 370252, 370253, 370310-350
• CPC Class Codes: H04W 24/02 Arrangements for optimising operational condition
• CPC Class Codes: H04W 24/08 Testing, supervising or monitoring using real traffic

Abstract

A wireless communication link can include an uplink and a downlink between a wireless access point and a computer device. The uplink supports communications from the computer device to the wireless access point. The downlink supports communications from the wireless access point to the computer device. The computer device executes a downlink monitor application to monitor events occurring on the downlink. The wireless access point or other suitable resource such as a remote management resource executes an uplink monitor application to monitor events occurring on the uplink. The uplink application and the downlink application log events using the same master clock. The remote management resource can be configured to analyze the uplink status information in view of the downlink status information to perform one or more functions such as troubleshooting, optimizing network settings, etc.

Claims

1. A method comprising:

at a computer device, monitoring a downlink established between a wireless access point and the computer device, the downlink supporting communications conveyed from the wireless access point to the computer device;

at the computer device, producing first downlink status information associated with the communications received on the downlink from the wireless access point, the first downlink status information including events associated with the communications on the downlink and corresponding time information indicating when the events are detected, the first downlink status information recording an event of receiving a particular wireless communication over the downlink from the wireless access point; and

forwarding the first downlink status information to a remote management resource, the remote management resource correlating i) the first downlink status information of receiving the particular wireless communication over the downlink to ii) second downlink status information of transmitting the particular wireless communication from the wireless access point over the downlink to the computer device;

wherein the first downlink status information indicates link attributes of receiving the particular wireless communication from the wireless access point at the computer device; and

wherein the second downlink status information indicates link attributes of transmitting the particular wireless communication from the wireless access point to the computer device, the method further comprising;

analyzing the first downlink status information in view of the second downlink status information.

2. The method as in claim 1, wherein forwarding the first downlink status information to the remote management resource includes:

transmitting the first downlink status information from the computer device over a wireless uplink established between the computer device and the wireless access point.

3. The method as in claim 2 further comprising:

storing the first downlink status information associated with the communications received on the downlink in a repository at the computer device; and

transmitting the first downlink status information over the wireless uplink to the remote management resource in response to receiving a command from the remote management resource.

4. The method as in claim 1 further comprising:

synchronizing an event clock in the computer device to a master clock associated with a group of wireless access points including the wireless access point; and

producing the corresponding time information associated with the events based on the event clock in the computer device.

5. The method as in claim 1 further comprising:

receiving a command from the remote management resource, the command indicating the attributes of the downlink to be monitored by a respective application in the computer device that generates the first downlink status information.

6. The method as in claim 1 further comprising:

in response to detecting establishment of a wireless communication link including the downlink and a respective uplink, executing an application on the computer device to perform the operations of monitoring, producing, and forwarding.

7. The method as in claim 6, wherein the application executing on the computer device produces the first downlink status information to include at least one selected type of information from the group consisting of:

i) a measurement of a received RF signal strength of the downlink,

ii) an radio frequency signal to noise measurement of the downlink,

iii) modulation and coding information associated with the downlink,

iv) attributes of layer 1 communications transmitted over the downlink, and

v) attributes of layer 2 communications transmitted over the downlink.

8. The method as in claim 1, wherein the downlink is a radio frequency signal generated by the wireless access point to a radio frequency interface in the computer device, the wireless access point producing the radio frequency signal to include communications addressed to the computer device;

wherein monitoring the downlink includes monitoring attributes of the radio frequency signal received at the computer device;

recording the attributes of the radio frequency signal and a respective time at which the attributes were detected; and

including the attributes of the radio frequency signal and the respective time in the first downlink status information.

9. The method as in claim 1, wherein the downlink is a radio frequency signal generated by the wireless access point to a radio frequency interface in the computer device, the wireless access point producing the radio frequency signal to include communications addressed to the computer device;

wherein monitoring the downlink includes monitoring different types of data communications received at the computer device over the radio frequency signal; and

recording the different types of data communications and respective times at which the communications were received.

10. The method as in claim 1 further comprising:

transmitting a request from the computer device over an uplink to the wireless access point, the request specifying content to retrieve and deliver to the computer device;

receiving the content over the downlink; and

wherein producing the first downlink status information includes producing the first downlink status information to indicate events associated with the request transmitted over the uplink and receipt of the content over the downlink.

11. The method as in claim 1 further comprising:

initiating simultaneous display of;

i) the link attributes of receiving the wireless communication over the downlink at the computer device, and ii) the link attributes of transmitting the wireless communication over the downlink to the computer device.

12. The method as in claim 11, wherein the link attributes of receiving the particular wireless communication at the computer device includes:

i) a radio frequency signal strength of receiving the particular wireless communication as measured by an RF interface in the computer device, and ii) first time information indicating a time of receiving the particular wireless communication at the computer device; and

wherein the link attributes of transmitting the particular wireless communication at the computer device includes;

i) a radio frequency signal strength of transmitting the particular wireless communication as measured by an RF interface in the wireless access point, and ii) second time information indicating a time of transmitting the particular wireless communication to the computer device.

13. The method as in claim 1, wherein the wireless access point generates the second downlink status information associated with transmission of the particular wireless communication from the wireless access point to the computer device.

14. The method as in claim 1, wherein the first downlink status information includes link attributes of receiving the particular communication at the computer device, the link attributes of receiving the particular communication from the wireless access point including:

i) a radio frequency signal strength of receiving the particular communication as measured by an RF interface in the computer device, and ii) first time information indicating a time of receiving the particular communication at the computer device; and

wherein the second downlink status information includes link attributes of transmitting the particular communication from the wireless access point, the link attributes of transmitting the particular communication from the wireless access point including;

i) a radio frequency signal strength of transmitting the particular communication as measured by an RF interface in the wireless access point, and ii) second time information indicating a time of transmitting the particular communication to the computer device.

15. The method as in claim 1 further comprising:

simultaneously displaying the first downlink status information and the second downlink status information on a display screen.

16. The method as in claim 15, wherein the displayed first downlink status information indicates wireless link attributes from a first perspective in which the computer device receives the particular wireless communication from the wireless access point;

and

wherein the displayed second downlink status information indicates wireless link attributes from a second perspective in which the wireless access point transmits the particular wireless communication to the computer device.

17. The method as in claim 15, wherein displaying the first downlink status information includes displaying:

i) a radio frequency signal strength of receiving the particular communication as measured by an RF interface in the computer device; and

wherein displaying the second downlink status information includes displaying;

i) a radio frequency signal strength of transmitting the particular communication from an RF interface in the wireless access point.

18. The method as in claim 17, wherein displaying the second downlink status information includes displaying a notification of a failure associated with transmitting the particular communication from the RF interface in the wireless access point to the communication device.

19. The method as in claim 18, wherein displaying the second downlink status information includes displaying a numerical value indicating an amount of data that was retransmitted from the RF interface due to the failure.

20. A method comprising:

at a wireless access point in a communication network;

receiving notification of an uplink established between a computer device and the wireless access point, the uplink supporting data communications from the computer device to the wireless access point;

monitoring the uplink;

producing uplink status information associated with communications received on the uplink, the uplink status information including;

i) wireless link quality attributes associated with the communications received on the uplink, and ii) corresponding time information indicating when the communications are detected; and

storing the uplink status information associated with the uplink;

at a management resource, receiving downlink status information, the downlink status information generated from a monitor application executing on the computer device, the downlink status information associated with a downlink supporting communications from the wireless access point to the computer device, the downlink status information including wireless link quality attributes associated with the communications conveyed on the downlink and corresponding time information indicating when the communications on the downlink are detected by the application;

the method further comprising;

analyzing the uplink status information in view of the downlink status information.

21. The method as in claim 20 further comprising:

based on the analysis, adjusting configuration settings of the uplink for subsequent communications between the wireless access point and the computer device.

22. The method as in claim 20 further comprising:

analyzing the uplink status information in view of the downlink status information to troubleshoot a communication failure between the wireless access point and the computer device.

23. The method as in claim 20 further comprising:

performing an analysis of the uplink status information and the downlink status information to increase efficiency of conveying subsequent communications between the wireless access point and the computer device.

24. The method as in claim 20 further comprising:

producing a command indicating attributes of the downlink to be monitored by a respective application in the computer device that produces the downlink status information; and

forwarding the command to the respective application in the computer device.

25. A system comprising:

a computer device;

a wireless access point, a wireless communication link established between the wireless access point and the computer device;

the computer device executing a first downlink monitor application, the first downlink monitor application producing first downlink status information tracking occurrence of receiving a particular communication on the downlink based on a first clock;

the wireless access point executing a second downlink monitor application, the second downlink monitor application producing second downlink status information tracking occurrence of transmitting the particular communication on the downlink based on a second clock; and

a management resource, the management resource receiving the first downlink status information and the second downlink status information, the management resource initiating display of the first downlink status information and the second downlink status information on a display screen;

wherein the first downlink status information indicates link attributes of receiving the particular communication at the computer device; and

wherein the second downlink status information indicates link attributes of transmitting the particular wireless communication to the computer device;

the management resource further operable to analyze the first downlink status information in view of the second downlink status information.

26. The system as in claim 25, wherein the first clock is synchronized with the second clock.

27. The system as in claim 26, wherein the management resource

receives a command from a network administrator, the command specifying types of attributes to be monitored by the downlink monitor application;

and

the management resource communicating the command to the first downlink monitor application executing on the computer device.

28. The system as in claim 26, wherein the management resource

adjusts settings of the wireless access point in accordance with control input received from a user viewing the display screen.

29. The system as in claim 25, wherein the display screen simultaneously displays:

i) the link attributes of receiving the wireless communication at the computer device, and ii) the link attributes of transmitting the wireless communication to the computer device.

30. The system as in claim 29, wherein the link attributes of receiving the particular communication at the computer device includes:

i) a radio frequency signal strength of receiving the particular communication as measured by an RF interface in the computer device, and ii) first time information indicating a time of receiving the particular communication at the computer device; and

wherein the link attributes of transmitting the particular communication at the computer device includes;

i) a radio frequency signal strength of transmitting the particular communication as measured by an RF interface in the wireless access point, and ii) second time information indicating a time of transmitting the particular communication to the computer device.

31. Computer-readable hardware storage having instructions stored thereon, the instructions, when carried out by at least one processing device, cause the at least one processing device to:

monitor a downlink established between a wireless access point and the computer device, the downlink supporting data communications from the wireless access point to the computer device;

produce first downlink status information associated with the data communications received on the downlink from the wireless access point, the first downlink status information including events associated with the data communications conveyed over the downlink and corresponding time information indicating when the events are detected; and

forward the status information to a remote management resource that compares the first downlink status information to second downlink status information, the second downlink status information produced at the wireless access point, the second downlink status information indicating attributes of transmitting the data communications over the downlink;

wherein the first downlink status information indicates link attributes of receiving the particular wireless communication from the wireless access point at the computer device; and

wherein the second downlink status information indicates link attributes of transmitting the particular wireless communication from the wireless access point to the computer device, the at least one processing device further operable to;

analyze the first downlink status information in view of the second downlink status information.