Information transmission method and device, electronic equipment and computer program product

Abstract

The invention relates to the technical field of wireless communication, and particularly provides an information transmission method and device, electronic equipment and a computer program product. The method comprises: sending a second message to a network device, the second message comprising first data, the first data being related information when or after the terminal device receives the first message. According to the invention, the terminal equipment reports the related information when or after the remedial scheme corresponding to the dual-connection is received, so that the network equipment is helped to know the current situation and make corresponding adjustment, and the dual-connection of the terminal equipment is realized as soon as possible.

Description

Technical Field

[0001] This disclosure relates to the field of wireless communication technology, and in particular to an information transmission method, apparatus, electronic device, and computer program product. Background Technology

[0002] Because the existing Conditional Handover (CHO) and Conditional PSCell Addition / Change (CPA / CPC, i.e., CPA or CPC) joint configuration requirements require that the user equipment (UE) can only use dual connectivity in the target cell or base station if both CHO and CPA / CPC events are satisfied, and these events should be satisfied as simultaneously as possible. In this way, once the UE completes the handover of the primary cell (PCell), it can simultaneously use the primary secondary cell (PSCell) for dual connectivity.

[0003] However, the mobility of the UE or the ideality of the operator's network optimization configuration can cause the network equipment to fail to meet both the CHO and CPA / CPC events when it judges that the UE is at risk of failure, thus causing the UE to be unable to successfully switch cells. Summary of the Invention

[0004] This disclosure is made in view of the above-mentioned problems. This disclosure provides an information transmission method, apparatus, electronic device, and computer program product.

[0005] According to one aspect of this disclosure, an information transmission method is provided, applied to a terminal device, the method comprising: sending a second message to a network device, wherein the second message includes first data, the first data being relevant information received by the terminal device at or after receiving the first message.

[0006] Furthermore, according to one aspect of the information transmission method of this disclosure, the method further includes: receiving a first message sent by the network device before sending a second message to the network device, wherein the first message is used to instruct the terminal device to perform cell handover if a first condition and / or a second condition are met.

[0007] Furthermore, according to one aspect of the information transmission method of this disclosure, the method further includes: receiving a third message sent by the network device before receiving a first message sent by the network device, wherein the third message is used to instruct the terminal device to perform cell handover if a third condition and a fourth condition are met.

[0008] Furthermore, according to one aspect of the information transmission method of this disclosure, the method further includes: performing cell handover if the terminal device does not meet the third condition and / or the fourth condition, but meets the received first condition or the second condition.

[0009] Furthermore, according to one aspect of the information transmission method of this disclosure, the first data includes at least one of the following: the satisfaction status of a third condition and / or a fourth condition when the first message is received; the time difference between when the third condition or the fourth condition is satisfied and when the first message is received; the time difference between when the third message is received and when the first message is received; relevant information of neighboring cells measured by the terminal device when the first condition or the second condition is satisfied; and relevant information of the configuration node of the conditional secondary cell change.

[0010] Furthermore, according to one aspect of the information transmission method of this disclosure, the satisfying condition includes at least one of the following: neither the third condition nor the fourth condition is satisfied; or one of the third condition or the fourth condition is satisfied while the other is not.

[0011] Furthermore, according to one aspect of the information transmission method of this disclosure, the first message is also used to instruct the terminal device to send first data.

[0012] Furthermore, according to one aspect of the information transmission method of this disclosure, the method further includes: receiving a fourth message sent by a network device, wherein the fourth message is used to instruct a terminal device to send first data.

[0013] Furthermore, according to one aspect of the information transmission method of this disclosure, the first condition includes a conditional handover CHO; the second condition includes a conditional handover CHO with a secondary cell SCG; the third condition includes a conditional handover event; and the fourth condition includes a conditional secondary cell addition / change event.

[0014] According to one aspect of this disclosure, an information transmission method is provided, applied to a network device, the method comprising: receiving a second message sent by a terminal device, wherein the second message includes first data, the first data being relevant information received by the terminal device at or after receiving the first message.

[0015] Furthermore, according to one aspect of the information transmission method of this disclosure, the method further includes: sending a first message to the terminal device before receiving a second message sent by the terminal device, wherein the first message is used to instruct the terminal device to perform cell handover if a first condition and / or a second condition are met.

[0016] Furthermore, according to one aspect of the information transmission method of this disclosure, the method further includes: sending a third message to the terminal device before sending a first message to the terminal device, wherein the third message is used to instruct the terminal device to perform cell handover if a third condition and a fourth condition are met.

[0017] Furthermore, according to one aspect of the information transmission method of this disclosure, the method further includes: adjusting the third condition and the fourth condition based on the first data.

[0018] Furthermore, according to one aspect of the information transmission method of this disclosure, the method further includes: sending a first message to the terminal device if the terminal device does not meet the third condition and / or the fourth condition.

[0019] Furthermore, according to one aspect of the information transmission method of this disclosure, the first data includes at least one of the following: the satisfaction status of a third condition and / or a fourth condition when the terminal device receives the first message; the time difference between when the third condition or the fourth condition is satisfied and when the terminal device receives the first message; the time difference between when the terminal device receives the third message and when it receives the first message; relevant information of neighboring cells measured by the terminal device when the first condition or the second condition is satisfied; and relevant information of the configuration node of the conditional secondary cell change.

[0020] Furthermore, according to one aspect of the information transmission method of this disclosure, the satisfying condition includes at least one of the following: neither the third condition nor the fourth condition is satisfied; or one of the third condition or the fourth condition is satisfied while the other is not.

[0021] Furthermore, according to one aspect of the information transmission method of this disclosure, adjusting the third and fourth conditions based on the first data includes: adjusting the threshold value of the other condition if one of the third or fourth conditions is satisfied; adjusting the threshold values ​​of both conditions if neither the third nor the fourth condition is satisfied; adjusting the time difference between satisfying the third or fourth condition and sending the first message if one of the third or fourth conditions is satisfied; adjusting the time difference between sending the third message and satisfying the first and / or second conditions; adjusting the threshold value of the third or fourth condition based on relevant measurement information of the cell, and / or adjusting the candidate cell indicated by the third or fourth condition, if the first and / or second conditions are satisfied; and adjusting the configuration node based on relevant information of the configuration node of the condition auxiliary cell change.

[0022] Furthermore, according to one aspect of the information transmission method of this disclosure, the first message is also used to instruct the terminal device to send first data.

[0023] Furthermore, according to one aspect of the information transmission method of this disclosure, the method further includes: sending a fourth message to a terminal device, wherein the fourth message is used to instruct the terminal device to send first data.

[0024] Furthermore, according to one aspect of the information transmission method of this disclosure, the first condition includes a conditional handover CHO; the second condition includes a conditional handover CHO with a secondary cell SCG; the third condition includes a conditional handover event; and the fourth condition includes a conditional secondary cell addition / change event.

[0025] According to another aspect of this disclosure, an information transmission apparatus is provided, the apparatus comprising: a sending module for sending a second message to a network device, wherein the second message includes first data, the first data being relevant information received by a terminal device at or after receiving the first message.

[0026] According to another aspect of this disclosure, an information transmission apparatus is provided, the apparatus comprising: a receiving module for receiving a second message sent by a terminal device, wherein the second message includes first data, the first data being relevant information received by the terminal device at or after receiving the first message.

[0027] According to another aspect of this disclosure, an electronic device is provided, comprising: a memory for storing computer-readable instructions; and a processor for executing the computer-readable instructions, causing the electronic device to perform the information transmission method described above.

[0028] According to another aspect of this disclosure, a computer program product is provided, including a computer program, wherein when the computer program is executed by a processor, it implements the information transmission method as described above.

[0029] As will be described in detail below, the information transmission method according to the embodiments of this disclosure helps the network device understand the current situation and make corresponding adjustments by having the terminal device report relevant information when or after receiving the remedial solution corresponding to dual connection, so as to realize dual connection of the terminal device as soon as possible.

[0030] It should be understood that both the foregoing general description and the following detailed description are exemplary and intended to provide further illustration of the claimed technology. Attached Figure Description

[0031] The above and other objects, features, and advantages of this disclosure will become more apparent from the more detailed description of the embodiments thereof in conjunction with the accompanying drawings. The drawings are provided to further illustrate the embodiments of this disclosure and form part of the specification. They are used together with the embodiments of this disclosure to explain the disclosure and do not constitute a limitation thereof. In the drawings, the same reference numerals generally represent the same components or steps.

[0032] Figure 1 This is a schematic diagram illustrating an application scenario of the information transmission method according to an embodiment of the present disclosure.

[0033] Figure 2 This is a schematic diagram illustrating dual connectivity in a 5G network according to an embodiment of the present disclosure.

[0034] Figure 3 This is a flowchart illustrating an information transmission method according to an embodiment of the present disclosure.

[0035] Figure 4 This is a further illustration of a flowchart of an information transmission method according to an embodiment of the present disclosure.

[0036] Figure 5 This is an overall flowchart illustrating an information transmission method according to an embodiment of the present disclosure.

[0037] Figure 6 This is a schematic diagram of an information transmission apparatus according to an embodiment of the present disclosure.

[0038] Figure 7 This is a schematic diagram of an information transmission apparatus according to an embodiment of the present disclosure.

[0039] Figure 8 This is a hardware block diagram illustrating an electronic device according to an embodiment of the present disclosure.

[0040] Figure 9 This is a schematic diagram illustrating a computer program product according to an embodiment of the present disclosure. Detailed Implementation

[0041] To make the objectives, technical solutions, and advantages of this disclosure more apparent, exemplary embodiments according to this disclosure will now be described in detail with reference to the accompanying drawings. Obviously, the described embodiments are merely some embodiments of this disclosure, and not all embodiments of this disclosure. It should be understood that this disclosure is not limited to the exemplary embodiments described herein.

[0042] First, refer to Figure 1 Overview of application scenarios according to embodiments of this disclosure.

[0043] Figure 1 This is a schematic diagram illustrating an application scenario of the information transmission method according to an embodiment of the present disclosure. For example... Figure 1 As shown, the application scenarios include at least: network devices (e.g., network device 10, network device 11, network device 12, network device 13, ..., network device 1N) and terminal devices 20.

[0044] The network devices (e.g., network device 10, network device 11, network device 12, network device 13, ..., network device 1N) can be devices used for communication with terminals. These network devices can be base stations (BTS) in GSM or CDMA communication systems, base stations (nodeB, NB) in WCDMA communication systems, evolved Node Bs (eNB or eNodeB) in LTE communication systems, next-generation evolved Node Bs (ng-eNB) in NR communication systems, next-generation Node Bs (gNB) in NR communication systems, or base stations in future communication systems, or other devices in the core network (CN), such as access and mobility management functions (AMF) and user plan functions (UPF). Additionally, network devices can also be access points (APs) or relay stations in wireless local area networks (WLANs), network devices in future evolved PLMN networks, or network devices in NTN networks. As long as the same technical effect is achieved, the base station is not limited to specific technical terms. It should be noted that in this embodiment, only the base station in the NR system is used as an example, but the specific type and number of base stations are not limited.

[0045] Terminal equipment 20 can refer to UE (User Equipment), access terminal, user unit, user station, mobile station, mobile station, remote station, remote terminal, mobile device, wireless terminal, user agent, or user device. Optionally, terminal equipment 20 can also be a cellular phone, cordless phone, SIP (Session Initiation Protocol) phone, WLL (Wireless Local Loop) station, PDA (Personal Digital Assistant), handheld device with wireless communication capabilities, computing device or other processing device connected to a wireless modem, vehicle-mounted device, wearable device, terminal in 5GS (5th Generation System), or terminal in the future evolved PLMN (Public Land Mobile Network), etc. It should be noted that the specific type and quantity of terminal equipment 20 are not limited in the embodiments disclosed herein.

[0046] Furthermore, the terminal device 20 can be deployed on land, including indoors or outdoors, handheld, wearable, or vehicle-mounted; it can be deployed on water (such as ships); and it can also be deployed in the air (such as airplanes, balloons, and satellites).

[0047] Furthermore, the terminal device 20 can be a mobile phone, a tablet computer, a computer with wireless transceiver capabilities, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal device in industrial control, a wireless terminal device in self-driving, a wireless terminal device in remote medical care, a wireless terminal device in a smart grid, a wireless terminal device in transportation safety, a wireless terminal device in a smart city, or a wireless terminal device in a smart home, etc.

[0048] Figure 2 This is a schematic diagram illustrating dual connectivity in a 5G network according to an embodiment of the present disclosure. As shown in Figure 2, in a 5G network, a UE is allowed to connect to two 5G base stations simultaneously. Figure 2 (Taking network device 10 and network device 11 as examples), thereby achieving higher data transmission rates and better network performance.

[0049] In dual connectivity, there are a master node (MN) and a secondary node (SN). The master node can be understood as the main base station (e.g., ...). Figure 2 The network device 10 in the system is responsible for providing primary services and coverage; specifically, it is responsible for establishing connections with the UE and handling data transmission and communication. A secondary node can be understood as an auxiliary base station (e.g., Figure 2 Network devices 11 in the network collaborate with the master node to provide additional capacity, coverage, or specific service support. Secondary nodes can increase network capacity, improve data transmission rates, and provide users with a better communication experience by connecting to the master node. This effectively utilizes the resources of multiple base stations, providing better network performance and user experience.

[0050] When a UE initiates a connection, it first connects to the primary node, and then adds secondary nodes as needed. Both primary and secondary nodes internally support carrier aggregation (CA), using multiple carriers together to improve transmission rates. A cell group is the basic unit for implementing CA; the primary node corresponds to the Master Cell Group (MCG), and the secondary node corresponds to the Secondary Cell Group (SCG).

[0051] In an MCG (Multi-Cell Group), there may be many cells. The cell used to initiate the initial access is called the primary cell (PCell). The PCell can be understood as the most "important" cell in the MCG. For example... Figure 2 Cell M1 is the cell in the MCG; other cells under the MCG are called auxiliary cells (SCell), for example... Figure 2 Cells M2, ..., Mn are defined in the MCG. PCell and SCell under the MCG are combined using CA technology.

[0052] Similarly, the cell initiating initial access under SCG is PScell ​​(Primary Secondary cell). PScell ​​can be understood as the most "important" cell in SCG, for example... Figure 2 Cell S1 is the cell in the SCG; other cells under the SCG are called auxiliary cells (SCell), for example... Figure 2 Cells S2, ..., Si are located within the SCG. PSCell and SCell under the SCG are also linked together using CA technology.

[0053] CHO (Contactless Hitchhiking) is a mechanism to enhance handover robustness. To address the issue of sudden channel degradation between the UE and the serving cell (in high-speed movement or high-frequency scenarios), preventing the UE from completing the handover process normally, the base station can include the handover trigger event in the CHO command. This command can also carry information such as the random access resources used by the UE in the target cell and the C-RNTI (Central Receiver Number Indicator). Once the UE evaluates that the handover event is satisfied, it initiates a random access procedure to the target cell. Since network devices are unaware of the UE's movement trajectory, the source base station can configure conditional handover for the UE against multiple candidate target cells.

[0054] Similarly, in a dual-connectivity scenario, CPA and CPC are events in which network devices MN (for CPA) and MN or SN (for CPC) add or change the cell identifiers and corresponding conditions of one or more candidate PSCells in advance. The UE is configured with information such as the dedicated random access resources and C-RNTI used in the candidate PSCell. When the UE evaluates that a candidate target PSCell cell meets the triggering conditions, it adds or changes the target cell to the PSCell.

[0055] To enable UEs to quickly use dual connectivity after handover to the primary cell MCG and improve UE data rate, a joint configuration of CHO for MCG (or PCell) and CPA / CPC mechanism for SCG (or PSCell) is proposed. When the conditions of MCG and SCG are met, the UE switches to the target Pcell and PScell ​​for dual connectivity.

[0056] However, as mentioned above, when the UE is moving at high speed or the operator's network optimization configuration is not ideal, the CHO and CPA / CPC events may not both be satisfied, and the UE may be unable to successfully switch cells. To solve this problem, the information transmission method of this disclosure embodiment is proposed, which will be referred to below. Figures 3-5 A further detailed description will follow.

[0057] Figure 3 This is a flowchart illustrating an information transmission method according to an embodiment of the present disclosure. Figure 3 As shown, the information transmission method applied to terminal device 20 may include at least the following steps.

[0058] In step S301, a second message is sent to the network device, wherein the second message includes first data, which is relevant information when or after the terminal device receives the first message.

[0059] As described above, this disclosure addresses the problem that a UE cannot successfully handover to a cell when both CHO and CPA / CPC events are not met. In the prior art, when the above situation occurs, the network device sends a remedial plan (i.e., a first message) to the terminal device 20. The remedial plan carries new handover conditions (which can be understood as being easier to meet than the previous CHO or CPA / CPC events), thereby allowing the terminal device 20 to handover as quickly as possible.

[0060] This disclosure, based on existing technology, involves a terminal device 20 reporting relevant data to a network device. Upon receiving this data, the network device can make targeted adjustments, resulting in more reasonable CHO and CPA / CPC events, enabling the terminal device 20 to quickly achieve dual connectivity. This relevant data is the aforementioned first data, reported via a second message. See below for details. Figure 5 A detailed introduction to the overall process is provided.

[0061] Figure 4 This is a further illustration of a flowchart of an information transmission method according to an embodiment of the present disclosure. For example... Figure 4 As shown, the information transmission method applied to network devices may include at least the following steps.

[0062] In step S401, a second message sent by the terminal device is received, wherein the second message includes first data, which is relevant information received by the terminal device at or after receiving the first message. As described above, this step corresponds to step S301, and the specifics will be found in [reference needed]. Figure 5 A detailed introduction to the overall process is provided.

[0063] Figure 5 This is a flowchart illustrating the overall process of an information transmission method according to an embodiment of the present disclosure. Figure 5 As shown, the execution terminal of the information transmission method in this embodiment of the present disclosure may include at least: a network device and a terminal device 20, and the information transmission method in this embodiment of the present disclosure may include at least the following steps.

[0064] Step S1: The network device sends a third message to the terminal device 20. This third message instructs the terminal device 20 to perform a cell handover if both a third and a fourth condition are met. Specifically, the third condition may be an event that triggers a CHO (Cell Hook Event), and the fourth condition may be an event that triggers a CPA (Cost Per Action) / CPC (Cell Per Action) event.

[0065] Specifically, the events that trigger a CHO can include, but are not limited to, at least one of the following:

[0066] (1) A3 event: When the UE measures the value of the candidate cell (such as RSRP, RSRQ or SINR) higher than the value of the current serving cell, and the difference between the two exceeds the preset threshold and meets a certain time (TTT: Time To Trigger), CHO is triggered.

[0067] (2) A4 event: When the UE measures the value of the candidate cell higher than the preset threshold and a certain time (TTT: Time To Trigger) is met, CHO is triggered.

[0068] (3) A5 event: When the UE measures that the current serving cell is lower than the preset threshold 1 (a5-Threshold1) and the candidate cell is higher than the preset threshold 2 (a5-Threshold2), and a certain duration is met, CHO is triggered.

[0069] (4) B1 event: When the UE’s uplink buffer status report (BSR) indicates that there is a large amount of data to be sent, but the uplink resources of the current cell are insufficient, CHO may be triggered.

[0070] (5) B2 event: When the number of failed random access requests of the UE exceeds the preset threshold, a CHO may be triggered to avoid further access failures.

[0071] (6) Time and space conditions: In addition to measurement-based events, CHO can also be triggered based on time and space conditions, such as if the UE fails to hand over within a specific time period or the UE moves to a specific area.

[0072] (7) Network policy: Network operators may configure CHO trigger conditions according to specific network policies or optimization objectives to improve network performance or meet specific quality of service requirements.

[0073] (8) Emergency handover: In certain emergency situations, such as cell failure or severe interference, the network may immediately trigger a CHO to ensure that the UE’s connection is not interrupted.

[0074] (9) User behavior: In some systems, user behavior, such as frequent movement or use of specific applications, may also serve as a trigger for CHO.

[0075] (10) Other RRM measurements: The network can also configure CHO trigger conditions based on other radio resource management (RRM) measurements, such as signal quality, interference level or cell delay.

[0076] Events that trigger CPA / CPC may include, but are not limited to, at least one of the following:

[0077] <1> A3 event: Similar to CHO, when a candidate cell's measurement value (such as RSRP, RSRQ, or SINR) is higher than the current serving cell's measurement value, and the difference between the two exceeds a preset threshold and meets a certain time limit (TTT: Time To Trigger), it triggers CPA or CPC.

[0078] <2> A4 event: When the UE measures a candidate cell value higher than a preset threshold and a certain time (TTT) is met, CPA or CPC is triggered.

[0079] <3> A5 event: When the UE measures that the current serving cell's measurement value is lower than the preset threshold 1 (a5-Threshold1) and the candidate cell's measurement value is higher than the preset threshold 2 (a5-Threshold2), and this condition is met for a certain duration, CPA or CPC is triggered.

[0080] <4> B1 event: If the UE has uplink data to send but does not have enough uplink resources, it may trigger CPA or CPC to find a cell with better uplink conditions.

[0081] <5> B2 event: Based on the number of failed random access procedures, if the number of UE random access failures reaches a certain threshold, it may trigger CPA or CPC.

[0082] <6> RRM Measurement: The network can configure the triggering conditions for CPA or CPC based on other RRM measurement results, such as signal quality, interference level, or cell delay.

[0083] <7> Business requirements: If the UE's business requirements change, requiring more bandwidth or better service quality, it may trigger CPA or CPC.

[0084] <8> Network policy: Network operators may configure CPA or CPC trigger conditions based on specific network policies, such as in high-traffic areas or under special service requirements.

[0085] <9> Emergency Situation: In the event of a sharp decline in signal quality or other emergency, the network may immediately trigger a CPA or CPC.

[0086] <10> Time threshold: If the UE fails to successfully hand over or add a secondary cell within a specific time period, a CPA or CPC attempt may be triggered even if the above events are not met.

[0087] When both the CHO and CPA / CPC events are satisfied, the UE switches to the target Pcell and PScell ​​for dual connectivity. If at least one of the CHO or CPA / CPC events is not satisfied, the subsequent steps of the information transmission method disclosed herein are executed.

[0088] Step S2: The network device sends a first message to the terminal device 20. This message instructs the terminal device 20 to perform a cell handover if the first condition and / or the second condition are met. As described above, in step S1, if both the CHO and CPA / CPC events are not met, the network device sends the first message to the terminal device 20 to enable the handover as quickly as possible.

[0089] In one embodiment of this disclosure, the first message can be understood as a remedy, which includes a new switching condition, namely, switching can be performed as long as the CHO condition of Pcell is met. Specifically, it can be a first condition and / or a second condition, wherein the first condition can be CHO only and the second condition can be CHO with SCG.

[0090] Optionally, in another embodiment of this disclosure, the first message may include not only a remedial solution (i.e., not only instructing the terminal device 20 to perform cell handover when the first and / or second conditions are met), but may also additionally instruct the terminal device 20 to report first data, wherein the first data is cell handover related information of the terminal device 20 upon or after receiving the first message. Since the conditions for CHO and CPA / CPC are assessed by the terminal device 20 itself, and the network device does not have relevant information, this information can be reported by the UE to inform the network device for subsequent adjustments. The specific first data will be described in detail in step S4.

[0091] Step S3: The network device sends a fourth message to the terminal device 20. It should be noted that this step is optional. The fourth message is used to instruct the terminal device 20 to report the first data. If the first message in step S2 has already been used to instruct the terminal device 20 to report the first data, this step is not performed; if the first message does not include the above instruction, the above instruction can be sent as a separate message, i.e., the fourth message.

[0092] Step S4: Terminal device 20 sends a second message to network device, wherein the second message includes first data, as described above, the first data is cell handover related information when or after terminal device 20 receives the first message.

[0093] Specifically, the first data may include at least one of the following:

[0094] 1) Upon receiving the first message, the satisfaction status of the third condition and / or the fourth condition. As mentioned above, not both the event triggering the CHO and the event triggering the CPA / CPC are satisfied. The satisfaction status can be further subdivided, and can include at least the following situations:

[0095] a) Neither the CHO event nor the CPA or CPC event is met;

[0096] b) The CHO events of one or more candidate PCells are satisfied;

[0097] c) One or more candidate PSCells have had their CPA or CPC events satisfied;

[0098] d) Cell-related identifiers of PCcells where CHO is satisfied, or PSCells where CPA / CPC events are satisfied, such as Physical Cell Identity (PCI) or Network Cell Global Identity (NCGI).

[0099] e) The event does not satisfy the cell-related identifier of the candidate target PCell or PSCell, such as PCI, NCGI, including all cells, or the PSCell or PCell associated with the PCell or PSCell in d) above (i.e., performing dual connectivity).

[0100] 2) The time difference between when the third or fourth condition is met and when the first message is received. As mentioned above, this is the time difference between when the CHO event or CPA / CPC event is met and when the remedy is received.

[0101] 3) The time difference between receiving the third message and receiving the first message. As mentioned above, this is the time difference between receiving the instruction to the terminal device 20 to perform cell handover under the condition that the third and fourth conditions are met and receiving the remedial solution.

[0102] 4) When the first condition or the second condition is met, the relevant measurement information of neighboring cells. As mentioned above, that is, when the remedial solution is met, the neighboring cell information measured by the terminal device 20 includes, but is not limited to: cell measurement information of the frequency points where the MCG and SCG are located, measurement information of candidate target PCell and PScell, etc.

[0103] 5) Information related to the configuration nodes of the conditional secondary cell. As mentioned above, this refers to the information related to the CPC configuration nodes, such as MN or SN.

[0104] In addition, it should be noted that the aforementioned first data may be reported by the terminal device 20 in the connected state or during the transition to the connected state, or in the RRC reconstruction request message or in the wireless link failure report.

[0105] Furthermore, the reporting may be: requested by the network device (for example, the first message mentioned above can also be used to instruct the terminal device 20 to report the first data, or to request it by sending a fourth message to the terminal device 20 through the network device), actively reported by the terminal device 20, or sent by the terminal device 20 at the request of the network device after informing the network device that there is relevant information.

[0106] Step S5: The network device adjusts based on the first data. As mentioned above, the first data has been obtained in step S4. In this step, the network device will adjust based on the first data so that the terminal device 20 can satisfy the CHO event and CPA / CPC event as soon as possible, thereby achieving dual connectivity.

[0107] Specifically, the above adjustments can optimize the joint configuration of CHO and CPA / CPC based on other information such as data rate, and may include at least one of the following:

[0108] 1. If one of the third or fourth conditions is met, adjust the threshold value of the other. As mentioned above, if the CHO event is triggered first, it means that the CPA / CPC event is met too late. The terminal device 20 may experience RLF while waiting for the CPA / CPC event to be met. The network device needs to adjust the CPA / CPC event and / or the corresponding threshold value of the PSCell associated with the PCell (such as lowering a3-Offset in the A3 event, raising a5-Threshold1 in A5, lowering a5-Threshold2), lowering the trigger time (Time To Trigger, TTT), etc., so that the CPA / CPC event can be executed or triggered earlier.

[0109] Correspondingly, if the CPA / CPC event is triggered first, it means that the CHO event is satisfied too late. The network device should adjust the CHO trigger threshold of the PCell associated with the PSCell (such as lowering a3-Offset in the A3 event, raising a5-Threshold1 in the A5 event, and lowering a5-Threshold2), and lower the trigger time (Time To Trigger, TTT) so that the CHO event can be triggered earlier.

[0110] 2. If neither the third nor the fourth condition is met, adjust the threshold values ​​for both. As mentioned above, if neither the conditions nor the events for CHO and CPA / CPC are met, then both conditions need to be adjusted. The adjustment method is as described in section 1 and will not be repeated here.

[0111] 3. If one of the third or fourth conditions is met, the timing of the event is determined based on the time difference between its fulfillment and the sending of the first message. As mentioned above, this is the time difference between the time when one of the CHO or CPA / CPC events is satisfied and the time when the remedial solution is sent. The configuration parameters for the relevant event are then adjusted accordingly. In other words, the network device can use this time difference to determine whether the corresponding event is satisfied too early or too late. If the time difference is small, it indicates that although the CHO or CPA / CPC event is satisfied, it is too late, and the adjustment will allow it to be satisfied earlier. If the time difference is large, it indicates that the CHO or CPA / CPC event is satisfied too early, and adjustments can be considered to postpone it.

[0112] 4. Adjust the time difference between sending the third message and meeting the first and / or second conditions. As mentioned above, this is the time difference between when terminal device 20 receives the message instructing it to perform cell handover upon meeting the CHO and CPA / CPC events, and the time when the remedial plan is met. Network devices can use this time difference to determine whether the resources configured for terminal device 20 are occupying resources for an excessive amount of time, leading to wasted network resources (because the resources reserved for terminal device 20 by the target candidate PCell and PSCell are reserved before or when the third message is sent to terminal device 20, and will only be released after the network device 20 has successfully completed the handover). Network devices can adjust the timing of sending the third message to reduce the occupation of network resources.

[0113] 5. If the first and / or second conditions are met, adjust the threshold values ​​of the third or fourth conditions and / or adjust the candidate cells indicated by the third or fourth conditions based on the relevant measurement information of the cells. As described above, based on the relevant measurement information of neighboring cells measured by the terminal device 20 when the terminal device 20 receives the remedial solution or when the remedial solution is met, the network device can determine the measurement values ​​of the previously configured candidate target PCell and PSCell, and adjust the specific parameters of the triggering event, such as A3-Offset, a5-Threshold1, a5-Threshold2, and trigger time (TimeToTrigger, TTT), in conjunction with the corresponding events and thresholds, so that the event is triggered earlier; in addition, the network device can also find that the measurement values ​​of cells that were not originally configured as target cells are also good, and these cells can be configured to the terminal device 20 in the future, or conversely, the measurement values ​​of the target cells that were originally configured are relatively poor, and they will not be configured to the terminal device 20 in the future, so as to realize the dynamic change of target cells and / or candidate cells.

[0114] 6. Adjust the configuration node based on the CPC configuration node information. As mentioned above, based on the CPC configuration node information, the node receiving the information reported by the terminal device 20 can forward the CPC-related information that needs optimization to the configuration node so that the node can optimize the subsequent CPC configuration. The CPC configuration may include, but is not limited to: the CPC configuring candidate target PSCells for the terminal device 20, and / or the corresponding CPC conditions, etc.

[0115] Figure 6 This is a schematic diagram of an information transmission apparatus according to an embodiment of the present disclosure. Figure 6 As shown, the information transmission device 600 may include at least the following modules.

[0116] The sending module 601 is used to send a second message to the network device, wherein the second message includes first data, which is relevant information when or after the terminal device receives the first message.

[0117] Additionally, it may include:

[0118] The receiving module 602 is used to receive a first message, wherein the first message is sent by the network device and is used to instruct the terminal device to perform cell handover if a first condition and / or a second condition are met.

[0119] The receiving module 603 is used to receive a third message sent by the network device, wherein the third message is used to instruct the terminal device to perform cell handover if the third condition and the fourth condition are met.

[0120] The relationship between the first condition and / or the second condition carried in the first message and the third condition and the fourth condition carried in the third message can be understood as follows: if the terminal device does not meet the third condition and / or the fourth condition, cell handover is performed if the received first condition or the second condition is met.

[0121] Furthermore, the first message can also be used to instruct the terminal device to send the first data.

[0122] Alternatively, when the first message does not instruct the terminal device to send the first data, it may also include a receiving module 604 for receiving a fourth message sent by the network device, wherein the fourth message is used to instruct the terminal device to send the first data.

[0123] The first data includes at least one of the following: the satisfaction status of the third and / or fourth conditions when the first message is received; the time difference between when the third or fourth condition is satisfied and when the first message is received; the time difference between when the third message is received and when the first message is received; relevant measurement information of neighboring cells when the first or second condition is satisfied; and relevant information of the configuration nodes of the condition-assisted cells that have changed.

[0124] The first condition mentioned above includes conditional handover only; the second condition includes conditional handover with secondary cell involved; the third condition includes conditional handover events; and the fourth condition includes conditions for adding / changing secondary cells.

[0125] Figure 7 This is a schematic diagram of an information transmission apparatus according to an embodiment of the present disclosure. For example... Figure 7 As shown, the information transmission device 700 may include at least the following modules.

[0126] The receiving module 701 is used to receive a second message sent by the terminal device, wherein the second message includes first data, and the first data is relevant information when or after the terminal device receives the first message.

[0127] Additionally, it may include:

[0128] The sending module 702 is used to send a first message to the terminal device if the terminal device does not meet the third condition and / or the fourth condition. The first message is sent by the network device and is used to instruct the terminal device to perform cell handover if the first condition or the second condition is met.

[0129] The sending module 703 is used to send a third message to the terminal device before sending the first message to the terminal device, wherein the third message is used to instruct the terminal device to perform cell handover if the third condition and the fourth condition are met.

[0130] The adjustment module 704 is used to adjust the third and fourth conditions based on the first data. The adjustment may include at least one of the following: adjusting the threshold value of the other condition if one of the third or fourth conditions is met; adjusting the threshold values ​​of both conditions if neither the third nor the fourth condition is met; adjusting the time difference between the fulfillment of the third or fourth condition and the transmission of the first message if one of the third or fourth conditions is met; adjusting the time difference between the transmission of the third message and the fulfillment of the first and / or second conditions; adjusting the threshold value of the third or fourth condition based on relevant measurement information of the cell, and / or adjusting the candidate cell indicated by the third or fourth condition, if the first and / or second conditions are met; and adjusting the configuration node based on relevant information of the CPC configuration node.

[0131] Furthermore, the first message can also be used to instruct the terminal device to send the first data.

[0132] Alternatively, when the first message does not instruct the terminal device to send the first data, it may also include sending 705 to send a fourth message to the terminal device, wherein the fourth message is used to instruct the terminal device to send the first data.

[0133] The first data includes at least one of the following: the satisfaction status of the third and / or fourth conditions when the first message is received; the time difference between when the third or fourth condition is satisfied and when the first message is received; the time difference between when the third message is received and when the first message is received; relevant measurement information of neighboring cells when the first or second condition is satisfied; and relevant information of the configuration nodes of the condition-assisted cells that have changed.

[0134] The first condition mentioned above includes conditional handover only; the second condition includes conditional handover with secondary cell involved; the third condition includes conditional handover events; and the fourth condition includes conditions for adding / changing secondary cells.

[0135] Figure 8 This is a hardware block diagram illustrating an electronic device according to an embodiment of the present disclosure. The electronic device according to an embodiment of the present disclosure includes at least a processor and a memory for storing computer-readable instructions. When the computer-readable instructions are loaded and executed by the processor, the processor performs the information transfer method as described above.

[0136] Figure 8 The illustrated electronic device 800 specifically includes a central processing unit (CPU) 801, a graphics processing unit (GPU) 802, and a memory 803. These units are interconnected via a bus 804. The CPU 801 and / or GPU 802 can function as the aforementioned processor, and the memory 803 can function as the aforementioned memory storing computer-readable instructions. Furthermore, the electronic device 800 may also include a communication unit 805, a storage unit 806, an output unit 807, an input unit 808, and an external device 809, all of which are also connected to the bus 804.

[0137] Figure 9 This is a schematic diagram illustrating a computer program product according to an embodiment of the present disclosure. Figure 9 As shown, a computer program product 900 according to an embodiment of this disclosure stores a computer program 901. When the computer program 901 is executed by a processor, it performs the information transmission method described with reference to the above figures. The computer program product includes, but is not limited to, volatile memory and / or non-volatile memory. The volatile memory may include, for example, random access memory (RAM) and / or cache memory. The non-volatile memory may include, for example, read-only memory (ROM), hard disk, flash memory, optical disk, magnetic disk, etc.

[0138] The above description, with reference to the accompanying drawings, outlines an information transmission method, apparatus, electronic device, and computer program product according to embodiments of the present disclosure. According to the information transmission method of the present disclosure, the terminal device reports relevant information upon receiving a remedial solution corresponding to dual connectivity, thereby helping the network device understand the current situation and make corresponding adjustments to achieve dual connectivity of the terminal device as quickly as possible.

[0139] Those skilled in the art will recognize that the units and algorithm steps of the various examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this disclosure.

[0140] The basic principles of this disclosure have been described above with reference to specific embodiments. However, it should be noted that the advantages, benefits, and effects mentioned in this disclosure are merely examples and not limitations, and should not be considered as essential features of each embodiment of this disclosure. Furthermore, the specific details disclosed above are for illustrative and facilitative purposes only, and are not limitations. These details do not limit the scope of this disclosure to the necessity of employing the aforementioned specific details for implementation.

[0141] The block diagrams of devices, apparatuses, devices, and systems disclosed herein are merely illustrative examples and are not intended to require or imply that they must be connected, arranged, or configured in the manner shown in the block diagrams. As those skilled in the art will recognize, these devices, apparatuses, devices, and systems can be connected, arranged, and configured in any manner. Words such as “comprising,” “including,” “having,” etc., are open-ended terms meaning “including but not limited to,” and are used interchangeably with them. The terms “or” and “and” as used herein refer to the terms “and / or,” and are used interchangeably with them unless the context clearly indicates otherwise. The term “such as” as used herein refers to the phrase “such as but not limited to,” and is used interchangeably with it.

[0142] Additionally, as used herein, the “or” used in a list of items beginning with “at least one” indicates a separate list, such that a list of, for example, “at least one of A, B, or C” means A or B or C, or AB or AC or BC, or ABC (i.e., A and B and C). Furthermore, the word “exemplary” does not imply that the described example is preferred or better than other examples.

[0143] It should also be noted that in the systems and methods of this disclosure, the components or steps can be decomposed and / or recombined. These decompositions and / or recombinations should be considered as equivalent solutions to this disclosure.

[0144] Various changes, substitutions, and modifications can be made to the technology described herein without departing from the teachings defined by the appended claims. Furthermore, the scope of the claims of this disclosure is not limited to the specific aspects of the processes, machines, manufactures, events, means, methods, and actions described above. Currently existing or later-developed processes, machines, manufactures, events, means, methods, or actions that perform substantially the same function or achieve substantially the same result as the corresponding aspects described herein can be utilized. Therefore, the appended claims include such processes, machines, manufactures, events, means, methods, or actions within their scope.

[0145] The above description of the disclosed aspects is provided to enable any person skilled in the art to make or use this disclosure. Various modifications to these aspects will be readily apparent to those skilled in the art, and the general principles defined herein may be applied to other aspects without departing from the scope of this disclosure. Therefore, this disclosure is not intended to be limited to the aspects shown herein, but rather to be carried out within the widest scope consistent with the principles and novel features disclosed herein.

[0146] The above description has been given for purposes of illustration and description. Furthermore, this description is not intended to limit the embodiments of this disclosure to the forms disclosed herein. Although numerous exemplary aspects and embodiments have been discussed above, those skilled in the art will recognize certain variations, modifications, alterations, additions, and sub-combinations therein.

Claims

1. A method of information transmission, characterized in that, The method applied to a terminal device comprises: sending a second message to a network device, wherein the second message comprises first data, the first data being related information at or after the terminal device receiving a first message.

2. The information transmission method of claim 1, wherein, The method further comprises: before the sending of the second message to the network device, receiving a first message sent by the network device, wherein the first message is used to instruct the terminal device to perform cell switching under the condition that a first condition and / or a second condition are met.

3. The information transmission method of claim 2, wherein, The method further comprises: before the receiving of the first message sent by the network device, receiving a third message sent by the network device, wherein the third message is used to instruct the terminal device to perform cell switching under the condition that a third condition and a fourth condition are met.

4. The information transmission method of claim 3, wherein, The method further comprises: under the condition that the terminal device does not meet the third condition and / or the fourth condition, performing cell switching under the condition that the received first condition or second condition is met.

5. The information transmission method of claim 1, wherein, The first data comprises at least one of: a meeting condition of the third condition and / or the fourth condition at the time of receiving the first message; a time difference between the time when the third condition or the fourth condition is met and the time when the first message is received; a time difference between the time when the third message is received and the time when the first message is received; related information of a neighbor cell measured by the terminal device at the time when the first condition or the second condition is met; related information of a configured node of a conditional secondary cell change.

6. The information transmission method of claim 5, wherein, The meeting condition comprises at least one of: neither the third condition nor the fourth condition is met; one of the third condition or the fourth condition is met, while the other is not met.

7. The information transmission method of claim 2, wherein, The first message is further used to instruct the terminal device to send the first data.

8. The information transmission method of claim 1, wherein, The method further comprises: receiving a fourth message sent by the network device, wherein the fourth message is used to instruct the terminal device to send the first data.

9. The information transmission method according to any one of claims 2-7, wherein the first condition comprises a conditional handover CHO; the second condition comprises a conditional handover CHO with a secondary cell SCG; the third condition comprises a conditional handover event; the fourth condition comprises a conditional secondary cell addition / change event.

10. An information transmission method characterized by comprising: The method applied to a network device comprises: receiving a second message sent by a terminal device, wherein the second message comprises first data, the first data being related information at or after the terminal device receiving a first message.

11. The information transmission method of claim 10, wherein, The method further comprises: before the receiving of the second message sent by the terminal device, sending a first message to the terminal device, wherein the first message is used to instruct the terminal device to perform cell switching under the condition that a first condition and / or a second condition are met.

12. The information transmission method of claim 11, wherein, The method further comprises: before the sending of the first message to the terminal device, sending a third message to the terminal device, wherein the third message is used to instruct the terminal device to perform cell switching under the condition that a third condition and a fourth condition are met.

13. The information transmission method of claim 12, wherein, The method further comprises: adjusting the third condition and the fourth condition based on the first data.

14. The information transmission method of claim 12, wherein, The method further includes: sending the first message to the terminal device in a case where the terminal device does not satisfy the third condition and / or the fourth condition.

15. The information transmission method of claim 10, wherein, The first data includes at least one of: a satisfaction condition of the third condition and / or the fourth condition when the terminal device receives the first message; a time difference between a time when the third condition or the fourth condition is satisfied and a time when the terminal device receives the first message; a time difference between a time when the terminal device receives the third message and a time when the terminal device receives the first message; related information of a neighbor cell measured by the terminal device in a case where the first condition or the second condition is satisfied; related information of a configured node of a conditional secondary cell change.

16. The information transmission method of claim 15, wherein, The satisfaction condition includes at least one of: neither the third condition nor the fourth condition is satisfied; one of the third condition or the fourth condition is satisfied, and the other is not satisfied.

17. The information transmission method of claim 13, wherein, The adjusting the third condition and the fourth condition based on the first data includes: adjusting a threshold value of the other in a case where one of the third condition or the fourth condition is satisfied; adjusting threshold values of both in a case where neither the third condition nor the fourth condition is satisfied; adjusting a time difference between a time when one of the third condition or the fourth condition is satisfied and a time when the first message is sent; adjusting a time difference between a time when the third message is sent and a time when the first condition and / or the second condition is satisfied; adjusting a threshold value of the third condition or the fourth condition and / or adjusting a candidate cell indicated by the third condition or the fourth condition based on related measurement information of the cell in a case where the first condition and / or the second condition is satisfied; adjusting the configured node based on the related information of the configured node of the conditional secondary cell change.

18. The information transmission method of claim 11, wherein, The first message is further used to instruct the terminal device to send the first data.

19. The information transmission method of claim 10, wherein, The method further includes: sending a fourth message to the terminal device, wherein the fourth message is used to instruct the terminal device to send the first data.

20. The information transmission method of any of claims 11-18, wherein the first condition includes a conditional handover (CHO); the second condition includes a conditional handover (CHO) with a secondary cell (SCG); the third condition includes a conditional handover event; the fourth condition includes a conditional secondary cell addition / change event.

21. An information transmission apparatus characterized by comprising: The apparatus includes: a sending module configured to send a second message to a network device, wherein the second message includes first data, and the first data is related information of the terminal device when or after receiving a first message.

22. An information transmission apparatus characterized by comprising: The apparatus includes: a receiving module configured to receive a second message sent by a terminal device, wherein the second message includes first data, and the first data is related information of the terminal device when or after receiving a first message.

23. An electronic device, comprising: The apparatus includes: a memory configured to store computer readable instructions; and a processor configured to execute the computer readable instructions to cause the electronic device to perform the information transmission method of any of claims 1-20. ​ 24. A computer program product comprising a computer program, characterized in that, The computer program, when executed by a processor, implements the information transmission method of any one of claims 1 to 20.

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