Inter-device session connectivity enhancement

Patent metadata

Field	Value
Publication number	US-9237590-B2
Application number	US-201113583499-A
Country	US
Kind code	B2
Filing date	Feb 25, 2011
Priority date	Feb 25, 2011
Publication date	Jan 12, 2016
Grant date	Jan 12, 2016

Abstract

Devices and methods are provided for managing device-to-device (D2D) communications session in a wireless-enabled communication environment. A first client node comprises a database containing location and ID information associated with a plurality of second client nodes. The location information in the database is updated as individual second client nodes change their location. As the location information is updated, it is processed by the first client node to determine the distance between it and an individual second client node. If the distance between the first client node and the individual second client node is within a viable D2D communications range, then the user of the first client node is notified that a D2D communications session can be initiate with the individual second client node.

First claim

What is claimed is:

1. A client node, comprising:
a database comprising identification data and location data associated with a plurality of second client nodes; and
processing logic operable to process the identification data and the location data to identify an individual second client node of the plurality of second client nodes within a viable device-to-device (D2D) communication range;
wherein the processing logic is further operable to initiate an update of the identification data and the location data of the plurality of second client nodes to maintain currency of location data,
wherein the client node receives a location data update message from the individual second client node, wherein the location data update message comprises updates to the location data associated with the individual second client node, wherein the D2D communications session comprises one of the set of:
data communications directly between client nodes;
Multiple Input Multiple Output (MIMO) configurations;
Cooperative Multipoint (CoMP) configurations;
Interference Control (IC); and
relaying of information among client nodes,

wherein, the processing logic is further operable to initiate a first D2D communications session with the individual second client node that is within the viable D2D communication range, wherein the client node receives the location data update message from the individual second client node in response to:
a predetermined time elapsing after the first D2D communication session is established between the client node and the individual second node; or
a distance between the client node and the individual second client node exceeding a predetermined threshold.

2. The client node of claim 1 , wherein the client node receives the location data update message from the individual second client node at a predetermined interval after the client node establishes a communications session with the individual second client node.

3. The client node of claim 2 , wherein in response to receipt of the location data update message, the client node provides the individual second client node an additional location data request message comprising a request for additional location data associated with the individual second client node.

4. The client node of claim 2 , wherein the frequency of the predetermined interval of the receipt of location data update message is dependent upon the distance between the first and second client nodes.

5. The client node of claim 1 , wherein in response to receipt of the location data update message, the client node provides the individual second client node a location data response message comprising location data and identification data associated with the client node.

6. The client node of claim 5 , wherein in response to receipt of the location data response message, the individual second client node provides the client node a location data update response message comprising updated location data and identification data associated with the individual second client node.

7. The client node of claim 1 , wherein:
the client node generates and subsequently sends a first D2D session test message to the individual second client node;
the individual second client node successfully receives the first D2D session test message; and
the individual second client node generates and subsequently sends a D2D session test acknowledgement message to the client node.

8. The client node of claim 7 , wherein the client node initiates the first D2D communications session with the individual second client node upon successful receipt of the D2D session test acknowledgement message.

9. The client node of claim 7 , wherein the client node does not initiate the first D2D communications session with the individual second client node if the D2D session test acknowledgement message is not successfully received.

10. The client node of claim 7 , wherein the client node initiates a second D2D communications session with the individual second client node subsequent to the successful receipt of the D2D session test acknowledgement message.

11. A method for using a client node to initiate a device-to-device (D2D) communications session, comprising:
using a database comprising identification data and location data associated with a plurality of second client nodes; and
using processing logic to process the identification data and the location data to identify an individual second client node of the plurality of second client nodes within a viable D2D communication range;
wherein the processing logic is further operable to initiate an update of the identification data and the location data of the plurality of second client nodes to maintain currency of location data,
wherein the client node receives a location data update message from the individual second client node, wherein the location data update message comprises updates to the location data associated with the individual second client node, wherein the D2D communications session comprises one of the set of:
data communications directly between client nodes;
Multiple Input Multiple Output (MIMO) configurations;
Cooperative Multipoint (CoMP) configurations;
Interference Control (IC); and
relaying of information among client nodes,

wherein, the processing logic is further operable to initiate a first D2D communications session with the individual second client node that is within the viable D2D communication range, wherein the client node receives the location data update message from the individual second client node in response to:
a predetermined time elapsing after the first D2D communication session is established between the client node and the individual second node; or
a distance between the client node and the individual second client node exceeding a predetermined threshold.

12. The method of claim 11 , wherein the client node receives the location data update message from the individual second client node at a predetermined interval after the client node establishes a communications session with the individual second client node.

13. The method of claim 12 , wherein in response to receipt of the location data update message, the client node provides the individual second client node a location data response message comprising location data and identification data associated with the client node.

14. The method of claim 13 , wherein in response to receipt of the location data update response message, the individual second client node provides the client node a location data update response message comprising updated location data and identification data associated with the individual second client node.

15. The method of claim 12 , wherein in response to receipt of the location data update message, the client node provides the individual second client node an additional location data request message comprising a request for additional location data associated with the individual second client node.

16. The method of claim 12 , wherein the frequency of the predetermined interval of the receipt of location data update message is dependent upon the distance between the first and second client nodes.

17. The method of claim 11 , wherein:
the client node generates and subsequently sends a first D2D session test message to the individual second client node;
the individual second client node successfully receives the first D2D session test message; and
the individual second client node generates and subsequently sends a D2D session test acknowledgement message to the client node.

Assignees

• Novak Robert
• Steer David
• Yu Dongsheng
• Blackberry Ltd

Inventors

• Novak Robert
• Steer David
• Yu Dongsheng

Classifications

• G06F16/23

  Updating · CPC title

• H04W8/08

  Mobility data transfer · CPC title

• H04W84/18

  Self-organising networks, e.g. ad-hoc networks or sensor networks · CPC title

• H04W76/023 Primary

  Electricity · mapped topic

• G06F16/282

  Hierarchical databases, e.g. IMS, LDAP data stores or Lotus Notes · CPC title