Method for checking availability or state of peer entity

• US 9,380,550 B2
• Filed: 02/01/2013
• Issued: 06/28/2016
• Est. Priority Date: 03/07/2012
• Status: Active Grant

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Kim, Jinho, Lee, Wookbong, Kim, Suhwook, Kwak, Jinsam, Chun, Jinyoung
• Primary Examiner(s): PARK, JUNG H
• Application Number:
  US14/381,937
• Publication Number:
  US 20150016383A1
• Time in Patent Office: 1,243 Days
• US Class Current: 1/1
• CPC Class Codes: H04W 16/14 Spectrum sharing arrangements between different networks
• CPC Class Codes: H04W 24/08 Testing, supervising or monitoring using real traffic
• CPC Class Codes: H04W 48/10 using broadcasted information
• CPC Class Codes: H04W 60/02 by periodical registration
• CPC Class Codes: H04W 76/20 Manipulation of established connections
• CPC Class Codes: H04W 88/06 adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals

Abstract

A method for checking availability of one of Television White Space (TVWS) devices by a management device for managing the TVWS devices to co-exist in a TVWS according to one embodiment of the present invention can comprise the following steps: receiving a registration request message for registering the TVWS device or updating the registration of the TVWS device from the TVWS device; registering the TVWS device or updating the registration of the TVWS device; transmitting a check request message for checking the availability of the TVWS device to the TVWS device after registering the TVWS device or updating the registration of the TVWS device, the check request message including a time parameter; and determining the availability of the TVWS device on the basis of the time parameter.

Claims

1. A method for checking availability of a coexistence enabler (CE) connected to one of television white space (TVWS) devices, by a management device for enabling the TVWS devices to coexist in a TVWS, the method comprising:

transmitting a check request message including a time parameter and a number-of-retries parameter for checking availability of the CE to the CE;

receiving a check response message in response to the check request message from the CE; and

checking the availability of the CE based on the time parameter,

wherein, if the management device does not receive the check response message, the management device transmits N check request messages to the CE at a transmission interval corresponding to the time parameter, N is indicated by a value of the number-of-retries parameter.

2. The method according to claim 1, wherein, if the value of the number-of-retries parameter is a negative number, N is indicated by an absolute value of the number-of-retries parameter.

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

if the CE does not response of all of the N check request messages, performing de-authentication of a TVWS device connected to the CE.

4. The method according to claim 1, wherein the checking comprises determining that the CE is available if at least one check response message in response to the N check request messages is received from the CE within a time corresponding to a time parameter included in at least one check request message corresponding to the at least one check response message.

5. The method according to claim 1, wherein the checking comprises determining that the CE is not available if check response messages in response to the N check request messages are received from the CE after a time corresponding to a respective time parameter included in each of the N check request messages.

6. A method for checking availability of a management device for managing television white space (TVWS) devices by a server for enabling the TVWS devices to coexist in a TVWS, the method comprising:

transmitting a check request message including a time parameter and a number-of-retries parameter for checking availability of the management device to the management device;

receiving a check response message in response to the check request message from the management device; and

checking the availability of the management device based on the time parameter,

wherein, if the server does not receive the check response message, the server transmits N check request messages to the management device at a transmission interval corresponding to the time parameter, N is indicated by a value of the number-of-retries parameter.

7. The method according to claim 6, wherein, if the value of the number-of-retries parameter is a negative number, N is indicated by an absolute value of the number-of-retries parameter.

8. The method according to claim 6, further comprising:

if the management device does not response of all of the N check request messages, performing de-authentication of the management device.

9. The method according to claim 6, wherein the checking comprises determining that the management device is available if at least one check response message in response to the N check request messages is received from the management device within a time corresponding to a time parameter included in at least one check request message corresponding to the at least one check response message.

10. The method according to claim 6, wherein the checking comprises determining that the management device is not available if check response messages in response to the N check request messages are received from the management device after a time corresponding to a respective time parameter included in each of the N check request messages.