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JP-7857349-B2 - Information transmission method, reception method, and equipment

JP7857349B2JP 7857349 B2JP7857349 B2JP 7857349B2JP-7857349-B2

Inventors

  • ▲謝▼ 芳

Assignees

  • 中国移動通信有限公司研究院
  • 中国移動通信集団有限公司

Dates

Publication Date
20260512
Application Date
20240703
Priority Date
20200610

Claims (15)

  1. A method of transmitting information, The terminal records information regarding a Conditional Handover (CHO) and/or a Conditional Primary/Secondary Cell Change (CPC), This includes the terminal transmitting information relating to the CHO and/or CPC to the network, Here, the information relating to the CHO and/or CPC includes the trigger events of the CHO and/or CPC, and the trigger events include at least one of the A3 events and A5 events. The terminal transmitting information regarding the CHO and/or CPC to the network means that The terminal, while in an idle, inactive, or connected state, or in the process of transitioning to a connected state, receives a request message transmitted from the network and then transmits information about the CHO and/or CPC via a wireless link failure report.
  2. The information relating to the CHO and/or CPC includes at least one of the following: - Information about the beam measured when the trigger event is triggered; Metric information corresponding to the aforementioned trigger event; Here, the information regarding the beam measured when the trigger event is triggered is, The service cell, target cell and adjacent cell beam IDs, beam measurement results, and at least one of the number of beams in the cell whose beam quality exceeds a preset threshold are included. The service cell and target cell each include a primary cell PCell and/or a primary secondary cell PSCell, Here, the metric information corresponding to the trigger event is: The method according to claim 1, comprising at least one of a measured quantity, a type of reference symbol, a trigger time, a threshold corresponding to a trigger event, a hysteresis amount, and an offset amount.
  3. The information relating to the CHO and/or CPC is further, The method according to claim 1 , transmitted via random access reports, connection establishment reports, or predefined messages.
  4. Transmitting the aforementioned information regarding the CHO and/or CPC further means, The method according to claim 1 , wherein the terminal proactively transmits information relating to the CHO and/or CPC to the network.
  5. Before receiving a request message sent from the network, The method according to claim 4 , further comprising the terminal transmitting a log of information relating to the CHO and/or CPC to the network.
  6. Before recording information regarding CHO and/or CPC, Receiving configuration information transmitted from the network, and configuring information regarding the CHO and/or CPC to be recorded by the terminal based on the configuration information, Alternatively, the method according to claim 1, further comprising configuring information relating to the CHO and/or CPC to be recorded by the terminal based on information stored locally in advance.
  7. A method of receiving information, This includes the network-side equipment receiving information about CHO and/or CPC transmitted from the terminal, Here, the information relating to the CHO and/or CPC includes the trigger events of the CHO and/or CPC, and the trigger events include at least one of the A3 events and A5 events. Receiving information regarding CHO and/or CPC transmitted from the aforementioned terminal is: This includes sending a request message to the terminal and receiving information from the terminal regarding the CHO and/or CPC transmitted based on the request message via a wireless link failure report.
  8. The information relating to the CHO and/or CPC includes at least one of the following: - Information about the beam measured when the trigger event is triggered; Metric information corresponding to the aforementioned trigger event; Here, the information regarding the beam measured when the trigger event is triggered is, The service cell, target cell and adjacent cell beam IDs, beam measurement results, and at least one of the number of beams in the cell whose beam quality exceeds a preset threshold are included. The service cell and target cell each include a primary cell PCell and/or a primary secondary cell PSCell, Here, the metric information corresponding to the trigger event is: The method according to claim 7 , comprising at least one of a measured quantity, a type of reference symbol, a trigger time, a threshold corresponding to a trigger event, a hysteresis amount, and an offset amount.
  9. Before receiving information about CHO and/or CPC transmitted from the terminal, The method according to claim 7 , further comprising transmitting configuration information to a terminal and configuring information relating to the CHO and/or CPC to be recorded by the terminal.
  10. The information relating to the CHO and/or CPC is further, The method according to claim 9 , transmitted via random access reports, connection establishment reports, or predefined messages.
  11. Receiving information regarding CHO and/or CPC transmitted from the aforementioned terminal further means, The method according to claim 9 or 10 , comprising receiving information relating to the CHO and/or CPC that is proactively transmitted from the terminal.
  12. Before sending the request message to the aforementioned terminal, The method according to claim 11 , further comprising receiving a log of information relating to the CHO and/or CPC transmitted from the terminal.
  13. After receiving information about CHO and/or CPC transmitted from the terminal, The method according to claim 7, further comprising performing optimization processing of events and parameters of the CHO and/or CPC based on the information relating to the CHO and/or CPC, random access channel RACH reports and radio link failure RLF reports.
  14. It is a terminal, A recording module for recording information related to CHO and/or CPC, Includes a transmission module for transmitting information relating to the CHO and/or CPC to the network, Here, the information relating to the CHO and/or CPC includes the trigger events of the CHO and/or CPC, and the trigger events include at least one of the A3 events and A5 events. Here, the transmission module further, The terminal is used to transmit information about the CHO and/or CPC via a wireless link failure report after receiving a request message transmitted from the network while it is in an idle, inactive, or connected state, or in the process of transitioning to a connected state.
  15. Network-side equipment, Includes a receiving module for network-side equipment to receive information about CHO and/or CPC transmitted from a terminal, Here, the information relating to the CHO and/or CPC includes the trigger events of the CHO and/or CPC, and the trigger events include at least one of the A3 events and A5 events. Here, the receiving module further, It is used to send a request message to the terminal and to receive information regarding the CHO and/or CPC transmitted from the terminal via a wireless link failure report based on the request message.

Description

(Cross-reference of related applications) This application claims priority to Chinese Patent Application No. 202010525854.7, filed in China on 10 June 2020, and all its contents are incorporated herein by reference. (Technical field) This disclosure relates to the field of mobile communications technology, and more particularly to methods for transmitting, receiving, and equipment for transmitting information. Conditional Handover (CHO) is a mechanism that enhances the robustness of handovers and secondary node additions. To address the problem where a User Equipment (UE) may fail to complete a handover or secondary node addition process due to a sudden degradation of the channel between the UE and the service cell (especially at high frequencies), the base station configures the UE to trigger measurement reports at a relatively low threshold, carry a relatively high handover trigger threshold in the Handover (HO) command or secondary node addition command, and also carry the random access resources used by the UE in the target cell. In this way, the base station can receive measurement reports before the handover threshold is satisfied. Once the handover threshold is satisfied, the UE initiates the random access process to the target base station or cell. The source base station or cell can configure conditional handovers for multiple target cells for the UE. Similarly, a Conditional Primary/Secondary Cell Change (CPC) is a process in which a network-side master node (MN) or secondary node (SN) pre-sends the conditions for a primary/secondary cell change (PSCell Change) to a terminal, and the terminal spontaneously performs the PSCell Change when it determines that the conditions are met for the target PSCell. A primary/secondary cell (PSCell) is sometimes also called the primary service cell of a secondary cell group. Conditional handover (CHO) and conditional primary/secondary cell change (CPC) are not triggered by the network sending a handover command to the UE, but rather are automatically triggered on the terminal side based on events where the UE's measurement results match the network's configuration. Therefore, the network side does not know the specific time when CHO or CPC is triggered, the UE's location, or the UE's measurement results. Furthermore, if the network side configures two events for the UE, the network side does not know which event was met to trigger CHO or CPC. This makes it difficult for the network side to obtain the relevant information when CHO and CPC are triggered, and thus prevents them from optimizing the trigger events or flows based on that information. By reviewing the detailed description of the preferred embodiments below, various other advantages and benefits will become apparent to those skilled in the art. The accompanying drawings are for illustrative purposes only and should not be considered limitations to this disclosure. Furthermore, the same reference numerals indicate the same parts throughout the drawings. Figure 1 is a schematic diagram of one application scene of an embodiment of the present disclosure.Figure 2 is an example of a flowchart for a conditional handover of related technologies.Figure 3 is a flowchart showing how to apply the information transmission method according to the embodiment of this disclosure to the terminal side.Figure 4 is a flowchart showing how to apply the information receiving method according to the embodiment of this disclosure to the network side.Figure 5 is a diagram showing one configuration of a terminal according to an embodiment of the present disclosure.Figure 6 is another configuration diagram of a terminal according to an embodiment of the present disclosure.Figure 7 is a configuration diagram of one network-side device according to an embodiment of the present disclosure.Figure 8 is another configuration diagram of the network-side equipment according to an embodiment of the present disclosure. The following describes exemplary embodiments of this disclosure in more detail with reference to the attached drawings. While exemplary embodiments of this disclosure are shown in the drawings, it should be understood that this disclosure can be implemented in various forms, not limited to the embodiments described herein. These embodiments are provided to allow for a more thorough understanding of this disclosure and to fully convey its scope to those skilled in the art. The terms “first,” “second,” and so on in the specification and claims of this disclosure are used to distinguish similar subjects, not to describe a specific order or sequence. It should be understood that the data used in this manner is appropriately interchangeable so that the embodiments of the application described herein may be carried out, for example, in an order other than those illustrated or described herein. Furthermore, the terms “includes” and “has,” and any variations thereof, are intended to be non-exclusive. For example, a process, method,