Abstract
The present disclosure relates to an electronic device and a wireless communication method in a wireless communication system. The electronic device of the present disclosure comprises one or more processing circuits, configured to: acquire scenario identification information, comprising first link information that indicates the quality of a link between the electronic device and a user equipment, second link information that indicates the quality of a link between the electronic device and a base station, serving cell received power change rate information, and neighboring cell received power change rate information; and determine scenario information based on the scenario identification information, to inform the user equipment, so as to assist the user equipment to execute a relay reselection process, or to assist the electronic device to execute a relay selection process. By using the electronic device and the wireless communication method of the present disclosure, a remote user equipment is enabled to acquire a scenario in which the electronic device is located, so that the remote user equipment can better perform relay reselection or that the electronic device can better execute relay selection, thereby increasing the system performance and reducing overheads of an X2 interface. (FIG. 2)
Technologies
Product
Use Cases
Services
Claim
1. An electronic device in a wireless communication system, comprising: one or more processing circuits configured to perform operations of:acquiring scenario identification information, the scenario identification information comprising first link information indicating a quality of a link between the electronic device and a user equipment in the wireless communication system, second link information indicating a quality of a link between the electronic device and a base station in a serving cell for providing a service for the electronic device in the wireless communication system, received serving cell power change rate information and received neighbor cell power change rate information; and determining, based on the scenario identification information, scenario information on a scenario where the electronic device is located to inform the user equipment, so as to assist the user equipment to perform a relay reselection process or assist the electronic device to perform a relay selection process.
2. The electronic device according to claim 1, wherein the processing circuits generate relay reselection trigger information to instruct the user equipment to perform the relay reselection process when the second link information indicates that the quality of the link between the electronic device and the base station is less than a second threshold.
3. The electronic equipment according to claim 1, wherein the processing circuits determine that the electronic device is to perform a handover process when the first link information indicates that the quality of the link between the electronic device and the user equipment is greater than a first threshold, the second link information indicates that the quality of the link between the electronic device and the base station is less than the second threshold, and a difference between a change rate of the received power of a neighbor cell indicated by the received neighbor cell power change rate information and a change rate of the received power of the serving cell indicated by the received serving cell power change rate information is greater than a third threshold.
4. The electronic device according to claim 3, wherein the processing circuits are further configured to perform operations of:acquiring Time To Trigger TTT length information indicating a length of TTT of a running event A3 or received neighbor cell signal quality information;determining candidate target cells for the user equipment based on the TTT length information or the received neighbor cell signal quality information; and setting a bias value for each of the candidate target cells to assist the user equipment to select, from the candidate target cells, a final target cell for providing a service for the user equipment.
5. The electronic device according to claim 4, wherein the bias values of the candidate target cells are set based on the TTT length information or the received neighbor cell signal quality information.
6. The electronic device according to claim 1, wherein, in a case that the second link information indicates that the quality of the link between the electronic device and the base station is less than the second threshold, the processing circuits are further configured to perform an operation of:acquiring a speed adjustment factor of the electronic device to instruct the user equipment to adjust a hysteresis parameter of the user equipment.
7. The electronic device according to claim 3, wherein the processing circuits are further configured to perform operations of:performing the handover process; and generating handover indication information to instruct the user equipment to select a final relay link connection, the handover indication information indicating a result of performing the handover process.
8. The electronic device according to claim 7, wherein, in a case that the handover indication information indicates a failure to perform the handover process, the processing circuits are further configured to perform operations of:acquiring a cell ID of the final target cell for providing a service for the user equipment after performing the relay reselection process;determining that the final target cell has caused the Time To Trigger TTT of the running event A3 to inform the base station of the failure to perform the handover process and the cell ID of the final target cell; and performing a radio link recovery process when the Time To Trigger TTT of the running event A3 caused by the final target cell expires, so that the electronic device is connected to the final target cell.
9. The electronic device according to claim 1, wherein the processing circuits determine that the electronic device is to perform a relay selection process when the first link information indicates that the quality of the link between the electronic device and the user equipment is greater than the first threshold, the second link information indicates that the quality of the link between the electronic device and the base station is less than the second threshold, and a difference between a change rate of the received power of the neighbor cell indicated by the received neighbor cell power change rate information and a change rate of the received power of the serving cell indicated by the received serving cell power change rate information is greater than a third threshold
10. The electronic device according to claim 9, wherein the processing circuits are further configured to perform operations of:acquiring target relay information on a target relay user equipment obtained after the user equipment performs the relay reselection process; and performing the relay selection process, wherein, when performing the relay selection process, the processing circuits are further configured to perform operations of:monitoring a discovery message of the target relay user equipment indicated by the target relay information with a priority;determining that the quality of the link between the target relay user equipment and the electronic device is greater than a predetermined threshold; and establishing a relay connection between the target relay user equipment and the electronic device
11. The electronic device according to claim 10, wherein, before determining that the quality of the link between the target relay user equipment and the electronic device is greater than the predetermined threshold, the processing circuits are further configured to perform an operation of:determining that load factors of the target relay user equipment which is indicated by the target relay information are less than a predetermined number, the load factors representing the number of remote user equipments accessing to the target relay user equipment
12. The electronic device according to any of claims 1 to 11, wherein the wireless communication system is an advanced long-term evolution (LTE-A) cellular communication system, and the electronic device is relay user equipment in the wireless communication system
13. An electronic device in a wireless communication system, comprising: one or more processing circuits configured to perform operations of: monitoring a quality of a link between the electronic device and a relay user equipment for providing a relay service for the electronic device in the wireless communication system;acquiring scenario information on a scenario where the relay user equipment is located;and performing a relay reselection process based on the scenario information
14. The electronic device according to claim 13, wherein the scenario information is determined based on scenario identification information, the scenario identification information comprises first link information indicating a quality of a link between the electronic device and the relay user equipment, second link information indicating a quality of a link between the relay user equipment and a base station in a serving cell for providing a service for the electronic device in the wireless communication system, and received serving cell power change rate information and received neighbor cell power change rate information received by the relay user equipment.15. The electronic device according to claim 13, wherein, in a case that the scenario information indicates that the relay user equipment is to perform a handover process, the processing circuits are further configured to perform operations of:acquiring cell IDs of candidate target cells and a bias value set for each of the candidate target cells; and determining a target relay user equipment from the candidate target cells based on the bias value.16. The electronic device according to claim 15, wherein the processing circuits are further configured to perform operations of:setting a priority of the candidate target cells in accordance with a size of the bias values;and performing the relay reselection process on a candidate target relay user equipment in the candidate target cells in accordance with the priority of the candidate target cells, until the target relay user equipment is determined.17. The electronic device according to claim 15, wherein, in the process of performing the relay reselection process, the processing circuits are further configured to perform operations of:acquiring a link quality value indicating a quality of a link between the electronic device and a candidate target relay user equipment in the candidate target cells;adding the bias value corresponding to the candidate target cell to the link quality value corresponding to the candidate target relay user equipment in the candidate target cells to obtain an adjusted link quality value; and performing the relay reselection process based on the adjusted link quality value.18. The electronic device according to claim 13, wherein the processing circuits are further configured to perform operations of:acquiring a speed adjustment factor of the relay user equipment; and adjusting a hysteresis parameter based on the speed adjustment factor.19. The electronic device according to claim 15, further comprising:a timer configured to start timing when a connection is established between the electronic device and the target relay user equipment, wherein the processing circuits are further configured to perform an operation of:when the timer expires, generating a command to disconnect the electronic device from the target relay user equipment or disconnect the electronic device from the relay user equipment.
20. The electronic device according to claim 19, wherein, when the transceiver receives, from the relay user equipment, handover indication information indicating a success of the handover process, the processing circuits are further configured to perform operations of:acquiring a cell ID of a target cell of the relay user equipment;comparing the cell ID of the target cell of the relay user equipment with a cell ID of a serving cell of the target relay user equipment;when the cell IDs are different, disconnecting the electronic device from the relay user equipment immediately;when the cell IDs are the same, performing operations of:acquiring updated first link information in a duration prior to the expiration of the timer;and when the updated first link information indicates that the updated quality of link between the electronic device and the relay user equipment is always greater than a predetermined threshold, disconnecting the electronic device from the target relay user equipment after the timer expires.
21. The electronic device according to claim 19, wherein, when the transceiver receives, from the relay user equipment, handover indication information indicating a failure of the handover process, the processing circuits are further configured to perform an operation of:instructing the transceiver to send to the relay user equipment the cell ID of the serving cell of the target relay user equipment, so that the relay user equipment performs a radio link recovery process to connect to the serving cell of the target relay user equipment.
22. The electronic device according to claim 13, wherein, when the scenario information indicates that the relay user equipment is to perform the relay selection process, the processing circuits are further configured to perform operations of:instructing the transceiver to send to the relay user equipment the target relay information on the target relay user equipment obtained after performing the relay reselection process, so as to assist the relay user equipment to perform the relay selection process.
23. The electronic device according to any of claims 13 to 22, wherein the wireless communication system is an advanced long-term evolution (LTE-A) cellular communication system, and the electronic device is a remote user equipment in the wireless communication system.
24. A method for performing wireless communication in a wireless communication system, comprising:acquiring scenario identification information, the scenario identification information comprising first link information indicating a quality of a link between a relay user equipment in the wireless communication system and a remote user equipment in the wireless communication system, second link information indicating a quality of a link between the relay user equipment and a base station in a serving cell for providing a service for the relay user equipment in the wireless communication system, received serving cell power change rate information and received neighbor cell power change rate information; and determining, based on the scenario identification information, scenario information on a scenario where the relay user equipment is located to inform the remote user equipment, so as to assist the remote user equipment to perform a relay reselection process or assist the relay user equipment to perform a relay selection process.
25. A method for performing wireless communication in a wireless communication system, comprising:monitoring a quality of a link between a remote user equipment and a relay user equipment for providing a relay service for the remote user equipment in the wireless communication system;acquiring scenario information on a scenario where the relay user equipment is located;and performing a relay reselection process based on the scenario information.
26. A method for performing wireless communication in a wireless communication system, comprising:monitoring a quality of a link between a remote user equipment and a relay user equipment for providing a service for the remote user equipment in the wireless communication system;monitoring a quality of a link between the relay user equipment and a base station in a serving cell for providing a service for the relay user equipment and the remote user equipment in the wireless communication system;monitoring a change rate of received power of a neighbor cell and a change rate of received power of the serving cell; and when the quality of the link between the remote user equipment and the relay user equipment is greater than a first threshold, the quality of the link between the relay user equipment and the base station is less than a second threshold, and a difference between the change rate of received power of the neighbor cell and the change rate of received power of the serving cell is greater than a third threshold, acquiring information indicating a quality of received signals of a neighbor cell;determining candidate target cells for performing relay reselection for the remote user equipment, based on the information indicating the quality of received signals of the neighbor cell;setting a bias value for each of the candidate target cells; and performing a relay reselection process of the remote user equipment based on the bias value.']
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SUMMARY
ClaimChart-CA3004592A1-STO
Patent number:CA3004592A1
Claim Chart Type : SEP Claim Chart
Price: 200 €
Note:
The information in blue was extracted from the third parties (Standard Setting Organisation, Espacenet)
The information in grey was provided by the patent holder
The information in purple was extracted from the FrandAvenue
Explicitly disclosed patent:openly and comprehensibly describes all details of the invention in the patent document.
Implicitly disclosed patent:does not explicitly state certain aspects of the invention, but still allows for these to be inferred from the information provided.
Basis patent:The core patent in a family, outlining the fundamental invention from which related patents or applications originate.
Family member:related patents or applications that share a common priority or original filing.