RADIO NETWORK NODE, NETWORK NODE, WIRELESS DEVICE, AND METHODS PERFORMED THEREIN FOR COMMUNICATING IN A WIRELESS COMMUNICATION NETWORK

• US 20180352453A1
• Filed: 01/04/2017
• Published: 12/06/2018
• Est. Priority Date: 01/04/2017
• Status: Active Grant

• Current Assignee: Telefonaktiebolaget LM Ericsson
• Original Assignee: Telefonaktiebolaget LM Ericsson
• Inventors: GUNNARSSON, Fredrik, DA SILVA, Icaro L.J., FRENGER, Pal, MOOSAVI, Reza, RAMACHANDRA, Pradeepa, TIDESTAV, Claes, ZETTERBERG, Kristina
• Granted Patent: US 10,757,591 B2
• Time in Patent Office: Days
• CPC Class Codes: H04L 5/0048 Allocation of pilot signals, i.e. of signals known to the receiver
• CPC Class Codes: H04W 16/28 using beam steering
• CPC Class Codes: H04W 24/08 Testing, supervising or monitoring using real traffic
• CPC Class Codes: H04W 24/10 Scheduling measurement reports ; Arrangements for measurement reports
• CPC Class Codes: H04W 36/00837 Determination of triggering parameters for hand-off
• CPC Class Codes: H04W 36/0085 Hand-off measurements
• CPC Class Codes: H04W 76/10 Connection setup

Abstract

Embodiments herein relate to a method performed by a wireless device (10) for handling communication in a wireless communication network. The wireless device (10) stores a time instant associated with a receiving event relating to reference signal detection and information related to the receiving event. The wireless device (10) further detects a connection event related to a connection of the wireless device; and reports the time instant and the information to a radio network node (13) in the wireless communication network.

Claims

1. A method performed by a wireless device for handling communication in a wireless communication network, the method comprising:

storing a time instant associated with a receiving event relating to reference signal detection and information related to the receiving event;

detecting a connection event related to a connection of the wireless device; and

reporting the time instant and the information to a radio network node in the wireless communication network.

2. The method of claim 1, wherein the detecting the connection event comprises detecting a radio link problem of the connection or that the connection is released from a connected state.

3. The method of claim 1, further comprising

monitoring reference signals from a serving radio network node in the wireless communication network;

and wherein the receiving event comprises receiving an identifier of the serving radio network node, and the storing the time instant comprises storing the time instant when the wireless device receives the identifier of the serving radio network node.

4. The method of claim 3, wherein the stored information comprises the identifier of the serving radio network node, and the reporting the time instant and the information comprises reporting the time instant and the identifier of the serving radio network node to the radio network node.

5. The method of claim 1, further comprising

performing a measurement of a first reference signal, and the receiving event comprises the performing of the measurement of the first reference signal, and the information related to the receiving event comprises information associated with the first reference signal.

6. The method of claim 1, further comprising

receiving, from a serving radio network node, data comprising reference signals to monitor and/or an identifier of the serving radio network node.

7. The method of claim 1, further comprising

establishing a signaling connection to the radio network node after detecting the connection event and the reporting the time instant and information uses the signaling connection.

25. A computer program product comprising a non-transitory computer readable medium comprising a computer program comprising instructions, which, when executed on at least one processor, cause the at least one processor to carry out the method of claim 1.

8. A method performed by a second radio network node for handling communication in a wireless communication network, the method comprising:

receiving, from a wireless device, a time instant associated with a receiving event relating to reference signal detection at the wireless device and information related to the receiving event, which reference signal is associated with a first radio network node; and

initiating a process to establish a neighbour relationship of the first radio network node and a neighbouring radio network node, or of beams, in the wireless communication network using the received time instant and the received information.

9. The method of claim 8, wherein the initiating comprises signaling the time instant and the information to a network node to retrieve identity of the first radio network node associated to the receiving event, and the method further comprises establishing a neighbour relationship with the first radio network node associated to the receiving event using the retrieved identity.

10. The method of claim 8, wherein the initiating comprises signaling the time instant and the information to a third radio network node allowing the third radio network node to establish a neighbour relationship to the first radio network node based on the signaled time instant and the signaled information.

26. A computer program product comprising a non-transitory computer readable medium comprising a computer program comprising instructions, which, when executed on at least one processor, cause the at least one processor to carry out the method of claim 8.

11. A method performed by a network node for handling communication in a wireless communication network, the method comprising

storing an indication of a reference signal and a timing information defining when the reference signal was transmitted from a first radio network node or another radio network node;

receiving, from a second radio network node, a time instant associated with a receiving event relating to reference signal detection at a wireless device and information related to the receiving event; and

providing an identity of the first or the other radio network node based on the stored indication of the reference signal and the stored timing information mapping to the received time instant and received information related to the receiving event.

12. The method of claim 11, wherein the network node further stores additional information being one or more of:

periodicity of transmissions of the reference signal and transmission area of the reference signal.

13. A wireless device for handling communication in a wireless communication network, the wireless device being configured to:

store a time instant associated with a receiving event relating to reference signal detection and information related to the receiving event;

detect a connection event related to a connection of the wireless device; and

to

report the time instant and the information to a radio network node in the wireless communication network.

14. The wireless device of claim 13, being configured to detect the connection event by being configured to detect a radio link problem of the connection or that the connection is released from a connected state.

15. The wireless device of claim 13, further being configured to

monitor reference signals from a serving radio network node in the wireless communication network;

and wherein the receiving event comprises receiving an identifier of the serving radio network node, and being configured to store the time instant when the wireless device receives the identifier of the serving radio network node.

16. The wireless device of claim 15, wherein the stored information comprises the identifier of the serving radio network node, and being configured to report the time instant and the information by being configured to report the time instant and the identifier of the serving radio network node to the radio network node.

17. The wireless device of claim 13, further being configured to

perform a measurement of a first reference signal, and the receiving event comprises performing the measurement of the first reference signal, and the information related to the receiving event comprises information associated with the first reference signal.

18. The wireless device according of claim 13, further being configured to

receive, from a serving radio network node, data comprising reference signals to monitor and/or an identifier of the serving radio network node.

19. The wireless device of claim 13, further being configured to

establish a signaling connection to the radio network node after detecting the connection event and being configured to report the time instant and information over the established signaling connection.

20. A second radio network node for handling communication in a wireless communication network, the second radio network node being configured to:

receive from a wireless device, a time instant associated with a receiving event relating to reference signal detection at the wireless device and information related to the receiving event, which reference signal is associated with a first radio network node; and

to

initiate a process to establish a neighbour relationship of the first radio network node and a neighbouring radio network node or of beams in the wireless communication network using the received time instant and the received information.

21. The second radio network node of claim 20, being configured to initiate the process by being configured to signal the time instant and the information to a network node to retrieve identity of the first radio network node associated to the receiving event, and further being configured to establish a neighbour relationship with the first radio network node associated to the receiving event using the retrieved identity.

22. The second radio network node of claim 20, being configured to initiate the process by being configured to signal the time instant and the information to a third radio network node allowing the third radio network node to establish a neighbour relationship to the first radio network node based on the signaled time instant and the signaled information.

23. A network node for handling communication in a wireless communication network, the network node being configured to:

store an indication of a reference signal and a timing information defining when the reference signal was transmitted from a first radio network node or another radio network node;

receive, from a second radio network node, a time instant associated with a receiving event relating to reference signal detection at a wireless device and information related to the receiving event; and

provide an identity of the first or the other radio network node based on the stored indication of the reference signal and the stored timing information mapping to the received time instant and received information related to the receiving event.

24. The network node of claim 23, being further configured to store additional information being one or more of:

periodicity of transmissions of the reference signal and transmission area of the reference signal.