Handling of simultaneous network communication transmission and D2D communication reception or simultaneous network communication reception and D2D communication transmission

• US 10,098,129 B2
• Filed: 12/03/2013
• Issued: 10/09/2018
• Est. Priority Date: 05/08/2013
• Status: Active Grant

• Current Assignee: Guangdong OPPO Mobile Telecommunications Corporation Limited
• Original Assignee: Telefonaktiebolaget LM Ericsson
• Inventors: Lindoff, Bengt, Fodor, Gabor, Kazmi, Muhammad, Parkvall, Stefan
• Primary Examiner(s): Kizou, Hassan
• Assistant Examiner(s): Shand, Roberta A.
• Application Number:
  US14/784,267
• Publication Number:
  US 20160066356A1
• Time in Patent Office: 1,771 Days
• CPC Class Codes: H04W 52/146 Uplink power control
• CPC Class Codes: H04W 52/383 power control in peer-to-peer links
• CPC Class Codes: H04W 72/535 based on resource usage policies
• CPC Class Codes: H04W 72/541 using the level of interference
• CPC Class Codes: H04W 72/56 based on priority criteria
• CPC Class Codes: H04W 76/14 Direct-mode setup
• CPC Class Codes: H04W 76/15 Setup of multiple wireless link connections
• CPC Class Codes: H04W 88/04 adapted for relaying to or from another terminal or user

Abstract

A radio frequency communication device (100, 320) comprising a radio frequency communications interface (130) and a controller (110), wherein said controller (110) is configured to: establish network communication with a network node (200, 310) and to establish device-to-device communication with a second radio frequency communication device (325) via said radio frequency communication interface (130). The controller is further configured to determine whether there is to be performed a simultaneous communication comprising a network transmission over said network communication with said network node (200, 310) and a D2D reception over said device-to-device communication with said second radio frequency communication device (325) or a network reception over said network communication with said network node (200, 310) and a D2D transmission over said device-to-device communication with said second radio frequency communication device (325); determine if there is a transmission problem related to said simultaneous communication; and if so determine a mitigation technique; and perform said network transmission and said D2D reception or said network reception and said D2D transmission according to said mitigation technique to mitigate said transmission problem.

Claims

1. A first radio frequency communication device comprising a radio frequency communication interface and a controller, wherein said controller is configured to:

establish a network communication link with a network node and said first radio frequency communication device and to

establish a device-to-device communication link with a second radio frequency communication device and said first radio frequency communication device via said radio frequency communication interface;

determine a simultaneous communication in a subframe interval is to be performed comprising either;

a network transmission over said network communication link with said network node and said first radio frequency communication device and a D2D reception over said device-to-device communication link with said second radio frequency communication device and said first radio frequency communication device;

or

a network reception over said network communication link with said network node and said first radio frequency communication device and a D2D transmission over said device-to-device communication link with said second radio frequency communication device and said first radio frequency communication device;

determine there is a transmission problem related to said simultaneous communication in said subframe interval;

determine a mitigation technique for reducing adjacent channel interference; and

perform said simultaneous communication of said network transmission and said D2D reception or said simultaneous communication of said network reception and said D2D transmission according to said mitigation technique to mitigate said transmission problem.

2. The first radio frequency communication device according to claim 1, wherein said controller is configured to adapt a transmission power level according to said mitigation technique.

3. The first radio frequency communication device according to claim 2, wherein said transmission power level is related to the network transmission.

4. The first radio frequency communication device according to claim 3, wherein said transmission power level is related to a network transmission power level and to a D2D transmission power level, wherein said controller is configured to adapt either said network transmission power level and/or a D2D transmission power level, wherein a transmission power level may be related to a corresponding reception power level.

5. The first radio frequency communication device according to claim 4, wherein said controller is configured to adapt said transmission power level by increasing or decreasing either of said network transmission power level and said D2D transmission power level, so that a difference between a reception power level and a transmission power level is below a threshold level.

6. The first radio frequency communication device according to claim 2, wherein said transmission power level is related to the D2D transmission.

7. The first radio frequency communication device according to claim 2, wherein said controller is configured to adapt said transmission power level by decreasing said transmission power level.

8. The first radio frequency communication device according to claim 2, wherein said controller is configured to adapt said transmission power level by scaling said transmission power level.

9. The first radio frequency communication device according to claim 2, wherein said controller is configured to adapt said transmission power level by transmitting an adapted transmission power level to said network node for adapted transmission to said first radio frequency communication device from said network node.

10. The first radio frequency communication device according to claim 2, wherein said controller is configured to adapt said transmission power level by transmitting an adapted transmission power level to said second radio frequency communication device for adapted transmission to said second radio frequency communication device from said first radio frequency communication device.

11. The first radio frequency communication device according to claim 1, wherein said controller is configured to restrict transmission on one of said network transmission power or D2D transmission power, by restricting the information to be transmitted.

12. The first radio frequency communication device according to claim 1, wherein said controller is configured to prioritize one of said network transmission and said D2D reception or said network reception and said D2D transmission, and only perform the prioritized communication according to said mitigation technique.

13. The first radio frequency communication device according to claim 1, wherein said controller is configured to prioritize a transmission of a signal or physical channel which carries control information according to said mitigation technique.

14. The first radio frequency communication device according to claim 1, wherein said mitigation technique is based on pre-defined rules stored in a memory comprised in said first radio frequency communication device.

15. The first radio frequency communication device according to claim 14, wherein said pre-defined rules relate to at least one of a condition of said first radio frequency communication device and a triggering event.

16. The first radio frequency communication device according to claim 15, wherein said controller is configured to transmit at least one of capability information of said first radio frequency communication device, which capability information indicates that the first radio frequency communication device is capable of performing said simultaneous network transmission and said D2D reception or said simultaneous network reception and said D2D transmission according to one or more mitigation techniques to mitigate the transmission problem, and a measurement report to said network node where said network node to base a selection of said mitigation technique on.

17. The first radio frequency communication device according to claim 1, wherein said controller is configured to determine said mitigation technique by receiving said mitigation technique or information associated with the said mitigation technique from said network node.

18. The first radio frequency communication device according to claim 1, wherein said controller is configured to receive an indication or message from said network node, and in response thereto determine said mitigation technique.

19. The first radio frequency communication device according to claim 1, wherein said controller is configured to determine if there is a transmission problem related to said simultaneous transmission and reception based on an imbalance of transmission power and reception power.

20. The first radio frequency communication device according to claim 1, wherein said controller is configured to determine if there is a transmission problem related to said simultaneous transmission and reception by determining if there is a likelihood for such a problem.

21. The first radio frequency communication device according to claim 1, wherein said controller is configured to transmit a report to said network node, wherein said report includes said mitigation technique and/or said detected problem.

22. The first radio frequency communication device according to claim 1, wherein said controller is configured to transmit a report to said second radio frequency communication device, wherein said report includes said mitigation technique and/or said detected problem.

23. The first radio frequency communication device according to claim 1, wherein said controller is configured to detect an event and in response thereto update said mitigation technique.

24. A method for use in a first radio frequency communication device comprising a radio frequency communications interface and a controller, said method comprising:

establishing a network communication link with a network node and said first radio frequency communication device, and to

establish a device-to-device communication link with a second radio frequency communication device and said first radio frequency communication device via said radio frequency communication interface;

determining a simultaneous communication in a subframe interval is to be performed comprising either a network transmission over said network communication link with said network node and said first radio frequency communication device and a D2D reception over said device-to-device communication link with said second radio frequency communication device and said first radio frequency communication device, or a network reception over said network communication link with said network node and said first radio frequency communication device and a D2D transmission over said device-to-device communication link with said second radio frequency communication device and said first radio frequency communication device;

determining there is a transmission problem related to said simultaneous communication in said subframe interval;

determining a mitigation technique for reducing adjacent channel interference; and

performing said simultaneous communication of said network transmission and said D2D reception or said simultaneous communication of said network reception and said D2D transmission according to said mitigation technique to mitigate said transmission problem.

25. A non-transitory computer readable storage medium encoded with instructions that, when loaded and executed on a processor, causes the method according to claim 24 to be performed.

26. A network node comprising a radio frequency communications interface and a controller, said network node being configured to serve at least one first radio frequency communication device being configured for both a network communication link and for a device-to-device communication link with a second radio frequency communication device, wherein said controller is configured to:

determine a mitigation technique for reducing adjacent channel interference to mitigate a problem related to transmission or reception of signals experienced by, or expected to be experienced by, the first radio frequency communication device for either simultaneous network transmission over said network communication link with said network node and said first radio frequency communication device and a D2D reception over said device-to-device communication link with said second radio frequency communication device and said first radio frequency communication device in a subframe interval, or for simultaneous network reception over said network communication link with said network node and said first radio frequency communication device and a D2D transmission over said device-to-device communication link with said second radio frequency communication device and said first radio frequency communication device in a subframe interval; and

transmit said mitigation technique to said first radio frequency communication device to allow simultaneous communications in said subframe interval.

27. The network node according to claim 26, wherein said controller is further configured to determine said mitigation technique based on pre-determined rules.

28. The network node according to claim 26, wherein said controller is further configured to receive at least one of capability information of said first radio frequency communication device, which capability information indicates that the first radio frequency communication device is capable of performing said network transmission and said D2D reception or said network reception and said D2D transmission according to one or more mitigation techniques to mitigate the transmission problem, a measurement report and an indication of a detected problem from said first radio frequency communication device and to determine said mitigation technique based on said at least one received capability report, measurement report or indication of a detected problem.

29. The network node according to claim 28, further comprising a memory, and wherein said controller is further configured to store said capability of said first radio frequency communication device for future use.

30. The network node according to claim 28, wherein said controller is further configured to transmit said capability of said first radio frequency communication device to a second network node.

31. The network node according to claim 26, wherein said controller is further configured to perform a measurement and generate a measurement report and to determine said mitigation technique based on said generated measurement report.

32. The network node according to claim 26, wherein said controller is further configured to perform a radio operational task, wherein said radio operational task comprises adapting at least one parameter related to resources assigned to said first radio frequency communication device for transmission over one of or both of a transmission to said network node or said second radio frequency communication device.

33. The network node according to claim 26, wherein said controller is further configured to receive an adapted transmission power level from said first radio frequency communication device and to transmit to said first radio frequency communication device according to said adapted transmission power level.

34. The network node according to claim 26, wherein said controller is further configured to detect an event and in response thereto update said mitigation technique.