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

Abstract

The present disclosure relates to the technical field of wireless communications, and in particular, provides an information transmission method, an apparatus, an electronic device, and a computer program product. The method comprises: sending a second message to a network device, wherein the second message comprises first data, and the first data is related information during / after reception of a first message by a terminal device. In the present disclosure, related information during or after reception of a remediation solution corresponding to dual connectivity is reported by a terminal device, so as to help a network device to learn about the current situation and make corresponding adjustment, thereby achieving dual connectivity of the terminal device as soon as possible.

Description

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

[0001] Cross-reference to Related Applications

[0002] The present disclosure is based on and claims priority from Chinese Patent Application No. 202410859705.2 filed on June 28, 2024, the entire contents of which are hereby incorporated by reference into the present disclosure. TECHNICAL FIELD

[0003] The present disclosure relates to the technical field of wireless communication, and particularly relates to an information transmission method, apparatus, electronic device, and computer program product. BACKGROUND

[0004] Since the existing joint configuration of conditional handover (CHO) and conditional PSCell addition / conditional PSCell change (CPA / CPC, i.e., CPA or CPC) requires a terminal device (UE) to use dual connectivity in a target cell or base station only when both CHO and CPA / CPC events are met, and the events are met as much as possible at the same time, the UE can use a primary secondary cell (PSCell) for dual connectivity as soon as the handover of a primary cell (PCell) is completed.

[0005] However, the mobility of the UE or the ideal degree of network optimization configuration of the operator will cause the events of CHO and CPA / CPC to be unable to be met at the same time when the network device determines that the UE has a risk of failure, thereby causing the UE to be unable to successfully switch cells all the time. SUMMARY

[0006] The present disclosure is proposed in view of the above problems. The present disclosure provides an information transmission method, apparatus, electronic device, and computer program product.

[0007] According to one aspect of the present disclosure, an information transmission method is provided, which is performed by a terminal device, and the method includes: sending a second message to a network device, wherein the second message includes first data, and the first data is related information after the terminal device receives a third message, or related information when or after the terminal device receives a first message.

[0008] Further, the information transmission method according to an aspect of the present disclosure, wherein the method further comprises: receiving a first message sent by the network device before sending the second message to the network device, wherein the first message is used to instruct the terminal device to perform cell switching under the condition that the first condition and / or the second condition are met.

[0009] Further, the information transmission method according to an aspect of the present disclosure, wherein the method further comprises: receiving a third message sent by the network device before receiving the first 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 the third condition and the fourth condition are met.

[0010] Further, the information transmission method according to an aspect of the present disclosure, wherein the method further comprises: performing cell switching under the condition that the received first condition or the second condition is met, in the case that the terminal device does not meet the third condition and / or the fourth condition.

[0011] Further, the information transmission method according to an aspect of the present disclosure, wherein the first data comprises at least one of: the meeting condition of the third condition and / or the fourth condition when or after the first message is received, or when radio link failure or handover failure occurs; the time difference between the time when the third condition or the fourth condition is met and the time when the first message is received; the time difference between the time when the third message is received and the time when the first message is received; the relevant information of the neighboring cell measured by the terminal device when the first condition or the second condition is met; the relevant information of the configured node of the conditional secondary cell change.

[0012] Further, the information transmission method according to an aspect of the present disclosure, 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.

[0013] Further, the information transmission method according to an aspect of the present disclosure, wherein the first message is further used to instruct the terminal device to send the first data.

[0014] Further, the information transmission method according to an aspect of the present disclosure, 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.

[0015] Further, the information transmission method according to an aspect of the present disclosure, wherein the first condition comprises conditional handover (CHO); the second condition comprises conditional handover with secondary cell (CHO with SCG); the third condition comprises conditional handover event; and the fourth condition comprises conditional secondary cell addition / change event.

[0016] According to an aspect of the present disclosure, a method for information transmission is provided, which is applied to a network device, and the method comprises: receiving a second message sent by a terminal device, wherein the second message comprises first data, and the first data is related information of the terminal device after receiving a third message, or related information when or after receiving a first message.

[0017] In addition, according to an aspect of the present disclosure, the method for information transmission further comprises: before receiving 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 when a first condition and / or a second condition are met.

[0018] In addition, according to an aspect of the present disclosure, the method for information transmission further comprises: before sending 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 when a third condition and a fourth condition are met.

[0019] In addition, according to an aspect of the present disclosure, the method for information transmission further comprises: adjusting the third condition and the fourth condition based on the first data.

[0020] In addition, according to an aspect of the present disclosure, the method for information transmission further comprises: when the terminal device does not meet the third condition and / or the fourth condition, sending the first message to the terminal device.

[0021] In addition, according to an aspect of the present disclosure, the first data comprises at least one of the following: a meeting condition of the third condition and / or the fourth condition when or after the terminal device receives the first message, or when a radio link failure or a handover failure occurs; a time difference between a time when the third condition or the fourth condition is met 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 neighboring cell measured by the terminal device when the first condition or the second condition is met; related information of a configuration node of a conditional secondary cell change.

[0022] In addition, according to an aspect of the present disclosure, the meeting condition comprises at least one of the following: neither the third condition nor the fourth condition is met; one of the third condition or the fourth condition is met, and the other one is not met.

[0023] Further, according to an aspect of the present disclosure, the information transmission method, wherein, based on the first data, adjusting the third condition and the fourth condition comprises: in the case that one of the third condition or the fourth condition is met, adjusting a threshold value of the other; in the case that neither of the third condition or the fourth condition is met, adjusting threshold values of both; in the case that one of the third condition or the fourth condition is met, adjusting a time difference between a time when the one is met 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 met; in the case that the first condition and / or the second condition is met, adjusting a threshold value of the third condition or the fourth condition based on relevant measurement information of the cell, and / or adjusting a candidate cell indicated by the third condition or the fourth condition; adjusting a configuration node based on relevant information of the configuration node of the conditional secondary cell change.

[0024] Further, according to an aspect of the present disclosure, the information transmission method, wherein the first message is further used to instruct the terminal device to send the first data.

[0025] Further, according to an aspect of the present disclosure, the information transmission method, wherein the method further comprises: sending a fourth message to the terminal device, wherein the fourth message is used to instruct the terminal device to send the first data.

[0026] Further, according to an aspect of the present disclosure, the information transmission method, wherein the first condition comprises a conditional handover CHO; the second condition comprises a conditional handover CHO with a secondary cell; the third condition comprises a conditional handover event; and the fourth condition comprises a conditional secondary cell addition / change event.

[0027] According to another aspect of the present disclosure, an information transmission apparatus is provided, the apparatus comprising: a sending module configured to send a second message to a network device, wherein the second message comprises first data, the first data being related information after the terminal device receives a third message, or related information when or after the terminal device receives a first message.

[0028] According to another aspect of the present disclosure, an information transmission apparatus is provided, the apparatus comprising: a receiving module configured to receive a second message sent by a terminal device, wherein the second message comprises first data, the first data being related information after the terminal device receives a third message, or related information when or after the terminal device receives a first message.

[0029] According to yet another aspect of the present disclosure, an electronic device is provided, comprising: 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 as described above.

[0030] According to still another aspect of the present disclosure, there is provided a computer program product comprising a computer program which, when executed by a processor, implements the information transmission method as described above.

[0031] As will be described in detail below, according to the information transmission method of the embodiments of the present disclosure, the terminal device reports relevant information when or after receiving the remedy scheme corresponding to the dual connectivity, to help the network device understand the current situation and make corresponding adjustments to achieve the dual connectivity of the terminal device as soon as possible.

[0032] It is to be understood that both the foregoing general description and the following detailed description are exemplary, and are intended to provide further explanation of the subject technology. BRIEF DESCRIPTION OF DRAWINGS

[0033] The foregoing and other objects, features and advantages of the present disclosure will become more apparent from the following detailed description, which proceeds with reference to the accompanying drawings. The drawings are provided to illustrate embodiments of the present disclosure and, together with the detailed description, serve to explain the present disclosure and do not constitute a limitation thereof. In the drawings, like reference numerals refer to like elements or steps throughout. The embodiments of the present disclosure will be described and explained with additional specificity and detail through the use of the accompanying drawings in which:

[0034] FIG. 1 is a scenario diagram illustrating an application scenario of the information transmission method according to an embodiment of the present disclosure.

[0035] FIG. 2 is a diagram illustrating dual connectivity in a 5G network according to an embodiment of the present disclosure.

[0036] FIG. 3 is a flowchart illustrating the information transmission method according to an embodiment of the present disclosure.

[0037] FIG. 4 is a flowchart further illustrating the information transmission method according to an embodiment of the present disclosure.

[0038] FIG. 5 is a flowchart illustrating the overall information transmission method according to an embodiment of the present disclosure.

[0039] FIG. 6 is a device diagram illustrating an information transmission device according to an embodiment of the present disclosure.

[0040] FIG. 7 is a device diagram further illustrating an information transmission device according to an embodiment of the present disclosure.

[0041] FIG. 8 is a hardware block diagram of an electronic device according to an embodiment of the present disclosure.

[0042] FIG. 9 is a diagram illustrating a computer program product according to an embodiment of the present disclosure. DETAILED DESCRIPTION

[0043] In order to make the objectives, technical solutions and advantages of the present disclosure more obvious, the following will describe the example embodiments according to the present disclosure in detail with reference to the drawings. Obviously, the described embodiments are only part of the embodiments of the present disclosure, rather than all the embodiments of the present disclosure, and it should be understood that the present disclosure is not limited to the example embodiments described herein.

[0044] First, referring to FIG. 1, an application scenario according to an embodiment of the present disclosure is outlined.

[0045] FIG. 1 is a scenario schematic diagram illustrating an application scenario of an information transmission method according to an embodiment of the present disclosure. As shown in FIG. 1, the application scenario at least includes network devices (for example, network device 10, network device 11, network device 12, network device 13, …, network device 1N) and a terminal device 20.

[0046] Among them, the network device (for example, network device 10, network device 11, network device 12, network device 13, …, network device 1N) can be a device for communication with a terminal, and the network device can be a base station (base transceiver station, BTS) in a GSM or CDMA communication system, a base station (nodeB, NB) in a WCDMA communication system, an evolved base station (eNB or eNodeB) in an LTE communication system, a next-generation evolved base station (ng-eNB) in an NR communication system, a next-generation base station (gNB) in an NR communication system, or a base station in a future communication system or other devices in a core network (CN), such as an access and mobility management function (AMF), a user plane function (UPF), etc. In addition, the network device can also be an access point (AP) in a wireless local area network (WLAN), a relay station, a network device in a future evolved PLMN network, or a network device in an NTN network, etc. As long as the same technical effect is achieved, the base station is not limited to a specific technical term, and it should be noted that in the embodiments of the present disclosure, only the base station in the NR system is taken as an example, but the specific type and specific number of the base station are not limited.

[0047] The terminal device 20 can refer to a UE (User Equipment), an access terminal, a user unit, a user station, a mobile station, a mobile station, a remote station, a remote terminal, a mobile device, a wireless terminal, a user agent, or a user apparatus. Alternatively, the terminal device 20 can also be a cellular phone, a cordless phone, a SIP (Session Initiation Protocol) phone, a WLL (Wireless Local Loop) station, a PDA (Personal Digital Assistant), a handheld device with wireless communication function, a computing device, or other processing device connected to a wireless modem, a vehicle-mounted device, a wearable device, a terminal in a 5GS (5th Generation System), or a terminal in a future evolved PLMN (Public Land Mobile Network), etc. It should be noted that the specific type and specific number of the terminal device 20 are not limited in the embodiments of the present disclosure.

[0048] Further, the terminal device 20 can be deployed on land, including indoor or outdoor, handheld, wearable, or vehicle-mounted; can be deployed on the water surface (such as a ship, etc.); and can also be deployed in the air (such as an airplane, a balloon, and a satellite, etc.).

[0049] Further, the terminal device 20 can be a mobile phone, a tablet computer (Pad), a computer with wireless transceiver function, 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, a wireless terminal device in smart grid, a wireless terminal device in transportation safety, a wireless terminal device in smart city, or a wireless terminal device in smart home, etc.

[0050] FIG. 2 is a schematic diagram illustrating dual connectivity in a 5G network according to an embodiment of the present disclosure. As shown in FIG. 2, in the 5G network, a UE is allowed to be connected to two 5G base stations (network device 10 and network device 11 in FIG. 2) at the same time, so as to achieve higher data transmission rate and better network performance.

[0051] In dual connectivity, there are master nodes (MN) and secondary nodes (SN). The master node can be understood as the main base station (for example, network device 10 in FIG. 2), which is responsible for providing the main service and coverage, specifically, it is responsible for establishing a connection with the UE and processing data transmission and communication. The secondary node can be understood as an affiliated base station (for example, network device 11 in FIG. 2), which cooperates with the master node to provide additional capacity, coverage, or specific service support. The secondary node can increase network capacity, improve data transmission rate, and provide better communication experience for users through connection with the master node. In this way, multiple base station resources can be effectively utilized to provide better network performance and user experience.

[0052] When the UE initiates a connection, it first accesses the master node, and then adds the secondary node as needed. Whether it is a master node or a secondary node, multiple carriers can be supported inside for carrier aggregation (CA) to improve transmission rate through bundled use of multiple carriers. The cell group is the basic unit for implementing CA, and the master node corresponds to the master cell group (MCG), and the secondary node corresponds to the secondary cell group (SCG).

[0053] Under the MCG, there can be many cells, among which the cell used to initiate initial access is called the primary cell (PCell), which can be understood as the most "important" cell in the MCG, for example, cell M1 in FIG. 2; other cells under the MCG are called secondary cells (SCell), for example, cells M2, …, cell Mn in FIG. 2. The PCell and SCell under the MCG are combined together through CA technology.

[0054] Similarly, the cell under the SCG that initiates initial access is the PScell (Primary Secondary cell), which can be understood as the most "important" cell in the SCG, for example, cell S1 in FIG. 2; other cells under the SCG are called secondary cells (SCell), for example, cells S2, …, cell Si in FIG. 2. The PSCell and SCell under the SCG are also combined together through CA technology.

[0055] CHO is a mechanism to enhance the robustness of handover. To solve the problem that the channel between the UE and the serving cell suddenly becomes poor (high-speed movement or high-frequency scenario), resulting in the UE being unable to normally complete the handover process, the base station can carry the event triggering handover in the CHO command, and can also carry the random access resources, C-RNTI and other information used by the UE in the target cell. Once the UE evaluates that the handover event is met, the random access process is initiated to the target cell. Since the network device does not know the motion trajectory of the UE, the source base station can configure the UE with conditional handover for multiple candidate target cells.

[0056] Similarly, in the scenario of dual connectivity, CPA is that the network device MN configures the UE with the cell identity of one or more candidate PSCells, the corresponding conditional addition event, the dedicated random access resources used by the UE in the candidate PSCell, C-RNTI and other information in advance. CPC is that the network device MN or SN (for CPC) configures the UE with the cell identity of one or more candidate PSCells, the corresponding conditional handover event, the dedicated random access resources used by the UE in the candidate PSCell, C-RNTI and other information in advance. When the UE evaluates that a certain candidate target PSCell cell meets the triggering condition, the target cell is added or changed to PSCell.

[0057] In order to enable the UE to quickly use dual connectivity after MCG handover, and improve the data rate of the UE, a mechanism of jointly configuring the UE with CHO for MCG (or PCell) and CPA / CPC for SCG (or PSCell) is proposed. When the conditions of MCG and SCG are both met, the UE switches to the target Pcell and PScell for dual connectivity.

[0058] However, as described above, when the UE moves at high speed or the network optimization configuration of the operator is not ideal, the conditions of CHO and CPA / CPC may not be met, and the UE may not be able to successfully switch cells. To solve this problem, the information transmission method of the embodiments of the present disclosure is proposed, which will be described in further detail below with reference to FIGS. 3-5.

[0059] FIG. 3 is a flowchart illustrating an information transmission method according to an embodiment of the present disclosure. As shown in FIG. 3, the information transmission method applied to the terminal device 20 can at least include the following steps.

[0060] In step S301, a second message is sent to the network device, wherein the second message includes first data, and the first data is related information after the terminal device receives a third message, or related information when or after receiving a first message.

[0061] As described above, the present disclosure solves the problem that the UE cannot successfully switch cells all the time in the case that the CHO and CPA / CPC events cannot both be met. In the prior art, when the above-mentioned case occurs, the network device sends a remedial scheme (i.e., a first message) to the terminal device 20, and the remedial scheme carries new switching conditions (which can be understood as conditions that are easier to meet compared to the previous CHO or CPA / CPC events), so that the terminal device 20 switches as soon as possible;

[0062] The present disclosure is based on the prior art, and some related data is reported by the terminal device 20 to the network device, so that the network device can make targeted adjustments after receiving the data, and the adjusted CHO and CPA / CPC events are more reasonable, and the terminal device 20 can quickly realize dual connectivity. The related data is the first data mentioned above, and is reported through a second message. For details, see FIG. 5 in combination with the overall flow.

[0063] FIG. 4 is a flowchart further illustrating an information transmission method according to an embodiment of the present disclosure. As shown in FIG. 4, the information transmission method applied to the network device can at least include the following steps.

[0064] In step S401, a second message sent by a terminal device is received, wherein the second message includes first data, and the first data is related information after the terminal device receives a third message, or related information when or after the first message is received. As described above, this step corresponds to step S301, and for details, see FIG. 5 in combination with the overall flow.

[0065] FIG. 5 is a flowchart illustrating an overall flow of an information transmission method according to an embodiment of the present disclosure. As shown in FIG. 5, the terminal performing the information transmission method of the present embodiment can at least include a network device and a terminal device 20, and the information transmission method of the present embodiment can at least include the following steps.

[0066] Step S1: The network device sends a third message to the terminal device 20. The third message is used to instruct the terminal device 20 to perform cell switching under the condition that a third condition and a fourth condition are met. Specifically, the third condition can be an event triggering CHO, and the fourth condition can be an event triggering CPA / CPC.

[0067] Specifically, the event triggering CHO can include but is not limited to at least one of the following:

[0068] (1) A3 event: When the UE measures the candidate cell's measurement value (such as RSRP or RSRQ or SINR) to be higher than the current serving cell's measurement value, and the difference between the two exceeds a pre-set threshold, and a certain time duration (TTT: Time To Trigger) is met, CHO is triggered.

[0069] (2) A4 event: When the UE measures the candidate cell's measurement value to be higher than a pre-set threshold, and a certain time duration (TTT: Time To Trigger) is met, CHO is triggered.

[0070] (3) A5 event: When the UE measures the current serving cell's measurement value to be lower than a pre-set threshold 1 (a5-Threshold1), and the candidate cell's measurement value is higher than a pre-set threshold 2 (a5-Threshold2), and a certain time duration is met, CHO is triggered.

[0071] (4) B1 event: When the UE's uplink buffer status (BSR) indicates that there is a large amount of data to be sent, but the current cell's uplink resources are insufficient, CHO may be triggered.

[0072] (5) B2 event: When the UE's random access request failure count exceeds a pre-set threshold, CHO may be triggered to avoid further access failures.

[0073] (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 has not successfully switched within a certain time, or the UE has moved to a certain area.

[0074] (7) Network policy: Network operators may configure CHO trigger conditions according to specific network policies or optimization goals to improve network performance or meet specific service quality requirements.

[0075] (8) Emergency handover: In some emergency situations, such as cell failure or severe interference, the network may immediately trigger CHO to ensure that the UE's connection is not interrupted.

[0076] (9) User behavior: In some systems, user behavior, such as frequent movement or use of specific applications, may also be used as a CHO trigger condition.

[0077] (10) Other RRM measurements: The network can also configure CHO trigger conditions based on other radio resource management (RRM) measurement results, such as signal quality, interference level, or cell delay, etc.

[0078] The events that trigger CPA / CPC can include, but are not limited to, at least one of the following:

[0079] <1> A3 Event: Similar to CHO, the measurement of the candidate cell (such as RSRP or RSRQ or SINR) is measured to be higher than the current serving cell's measurement, and the difference between the two exceeds a pre-set threshold, and a certain time duration (TTT: Time To Trigger) is met, triggering CPA or CPC.

[0080] <2> A4 Event: When the UE measures the measurement of the candidate cell to be higher than a pre-set threshold, and a certain time duration (TTT: Time To Triger) is met, triggering CPA or CPC.

[0081] <3> A5 Event: When the UE measures the measurement of the current serving cell to be lower than a pre-set threshold 1 (a5-Threshold1), and the measurement of the candidate cell is higher than a pre-set threshold 2 (a5-Threshold2), and a certain time duration is met, triggering CPA or CPC.

[0082] <4> B1 Event: If the UE has uplink data to send but does not have enough uplink resources, CPA or CPC may be triggered to find a cell with better uplink conditions.

[0083] <5> B2 Event: Based on the number of random access procedure failures, if the UE fails to random access to a certain threshold, CPA or CPC may be triggered.

[0084] <6> RRM Measurement: The network can configure the triggering conditions of CPA or CPC based on other RRM measurement results, such as signal quality, interference level, or cell delay, etc.

[0085] <7> Traffic Demand: If the UE's traffic demand changes, requiring more bandwidth or better service quality, CPA or CPC may be triggered.

[0086] <8> Network Policy: Network operators may configure the triggering conditions of CPA or CPC based on specific network policies, such as in high traffic areas or special service requirements.

[0087] <9> Emergency: In the case of a sharp drop in signal quality or other emergency situations, the network may immediately trigger CPA or CPC.

[0088] <10> Time Threshold: If the UE fails to successfully switch or add a secondary cell within a certain time, CPA or CPC may be triggered even if the above events are not met.

[0089] When both the event triggering CHO and the event triggering CPA / CPC are satisfied, the UE switches to the target Pcell and PScell for dual connectivity. If at least one of the event triggering CHO and the event triggering CPA / CPC is not satisfied, the subsequent steps of the information transmission method of the present disclosure are performed.

[0090] Step S2: The network device sends a first message to the terminal device 20. The first message is used to instruct the terminal device 20 to perform cell switching when the first condition and / or the second condition are satisfied. As described above, after step S1, the event triggering CHO and the event triggering CPA / CPC are not both satisfied, at this time, the network device sends the first message to the terminal device 20 in order to enable the terminal device 20 to switch as soon as possible.

[0091] In an embodiment of the present disclosure, the first message can be understood as a remedial scheme, and the remedial scheme includes a new switching condition, i.e., the terminal device 20 can switch only when the CHO condition of the Pcell is satisfied. Specifically, the first condition can be CHO only, and the second condition can be CHO with SCG.

[0092] Optionally, in another embodiment of the present disclosure, the first message can not only include the remedial scheme (i.e., instruct the terminal device 20 to perform cell switching when the first condition and / or the second condition are satisfied), but also can additionally be used to instruct the terminal device 20 to report first data. The first data is related information of the terminal device 20 after receiving the third message, or cell switching related information when or after receiving the first message. Because the network device does not have the related information of the satisfaction of the conditions of CHO and CPA / CPC, the network device can know the information through the UE reporting mode, so as to make subsequent adjustments. The first data will be described in detail in step S4.

[0093] Step S3: The network device sends a fourth message to the terminal device 20. It should be noted that the step is an optional step. The fourth message is used to instruct the terminal device 20 to report the first data. If the first message has been additionally used to instruct the terminal device 20 to report the first data in step S2, the step is not performed. If the first message does not include the above instruction, the above instruction can be sent in a separate message, i.e., the fourth message is sent.

[0094] Step S4: The terminal device 20 sends a second message to the network device. The second message includes the first data. As described above, the first data is related information of the terminal device 20 after receiving the third message, or cell switching related information when or after receiving the first message.

[0095] In particular, the first data can comprise at least one of:

[0096] 1) the fulfilment of the third condition and / or of the fourth condition at or after the reception of the first message, or at or after the occurrence of a radio link failure or a handover failure. As mentioned above, the event triggering the CHO and the event triggering the CPA / CPC can not both be fulfilled, and the fulfilment can be further subdivided into at least the following cases:

[0097] a) neither the CHO event nor the CPA / CPC event is fulfilled;

[0098] b) the CHO event is fulfilled for one or more candidate PCells;

[0099] c) the CPA / CPC event is fulfilled for one or more candidate PSCells;

[0100] d) the cell related identity, such as the Physical Cell Identity (PCI) or the Network Cell Global Identity (NCGI), of the PCell for which the CHO is fulfilled, or of the PSCell for which the CPA / CPC event is fulfilled;

[0101] e) the cell related identity, such as the PCI or the NCGI, of the candidate target PCell or PSCell for which the event is not fulfilled, including all cells, or of the PSCell or PCell associated (i.e. dual connected) to the PCell or PSCell of d).

[0102] 2) the time difference between the moment in which the third condition or the fourth condition is fulfilled and the moment of reception of the first message. As mentioned above, this is the time difference between the moment in which the CHO event or the CPA / CPC event is fulfilled and the moment of reception of the remediation scheme.

[0103] 3) the time difference between the moment of reception of the third message and the moment of reception of the first message. As mentioned above, this is the time difference between the moment of reception of the instruction to the terminal device 20 to perform a cell change in case the third condition and the fourth condition are fulfilled and the moment of reception of the remediation scheme.

[0104] 4) the relevant measurement information of the neighbouring cells at the moment in which the first condition or the second condition is fulfilled. As mentioned above, this is the information of the neighbouring cells measured by the terminal device 20 at the moment in which the remediation scheme is fulfilled, including but not limited to: cell measurement information of the frequency on which the MCG, SCG, candidate target PCell and PSCell are located.

[0105] 5) information related to the configuration node of the conditional secondary cell change. As mentioned above, it is the configuration node of the CPC, such as the information related to the MN or the SN.

[0106] In addition, it should be noted that the first data can be reported by the terminal device 20 in the connected state or in the process of changing to the connected state or in the RRC reestablishment request message or in the radio link failure report.

[0107] Further, it should be noted that the above-mentioned first data can be reported by the terminal device 20 in the connected state or in the process of changing to the connected state or in the RRC reestablishment request message or in the radio link failure report.

[0108] Step S5: The network device adjusts based on the first data. As mentioned above, the first data has been obtained in step S4, and in this step, the network device will adjust based on the first data so that the terminal device 20 can meet the CHO event and the CPA / CPC event as soon as possible, thereby realizing dual connectivity.

[0109] Specifically, the above-mentioned adjustment can be, for example, the optimization of the corresponding CHO and CPA / CPC joint configuration of the data rate and other information, which can include at least one of the following:

[0110] 1. In the case where one of the third condition or the fourth condition is met, the threshold value of the other is adjusted. As mentioned above, if the CHO event is triggered first, it means that the CPA / CPC event is met too late, and the terminal device 20 can occur a radio link failure (RLF) in the process of waiting for the CPA / CPC event to be met, and the network device needs to adjust the event and / or the corresponding threshold value (such as adjusting the a3-Offset in the A3 event, adjusting the a5-Threshold1 of the A5, adjusting the a5-Threshold2) of the CPA / CPC of the PSCell associated with the PCell, adjusting the Time To Trigger (TTT), so that the CPA / CPC event can be executed or triggered earlier;

[0111] Correspondingly, if the CPA / CPC event is triggered first, it means that the CHO event is met too late, and the network device should adjust the threshold of the CHO trigger of the PCell associated with the PSCell (such as adjusting the a3-Offset in the A3 event, adjusting the a5-Threshold1 of the A5, adjusting the a5-Threshold2), adjusting the Time To Trigger (TTT), so that the CHO event can be triggered earlier.

[0112] 2、If neither the third condition nor the fourth condition is met, adjust the thresholds of both. As mentioned above, if neither the CHO nor the CPA / CPC condition or event is met, it means that the conditions of both need to be adjusted, and the adjustment method is as described in 1, which will not be repeated here.

[0113] 3、If one of the third condition or the fourth condition is met, according to the time difference between the time when the condition is met and the time when the first message is sent, that is, the time difference between the time when the CHO event or the CPA / CPC event is met and the time when the remedial scheme is sent, determine how early or late the relevant event occurs, and adjust the configuration parameters of the relevant event. That is, the network device can determine whether the corresponding event is met too early or too late according to the time difference. If the time difference is very small, it means that the CHO or CPA / CPC event is met too late, and the adjustment makes it meet earlier. If the time difference is very large, it means that the CHO or CPA / CPC event is met too early, and the adjustment can be considered to be made later.

[0114] 4、Adjust the time difference between the time when the third message is sent and the time when the first condition and / or the second condition is met. As mentioned above, that is, the time difference between the time when the terminal device 20 receives the message indicating that it can perform cell switching when the CHO event and the CPA / CPC event are met and the time when the remedial scheme is met. The network device can determine whether the resources configured for the terminal device 20 occupy a long time, resulting in waste of network device resources (because the resources reserved for the terminal device 20 by the target candidate PCell and PSCell are reserved before or when the third message is sent to the terminal device 20, and will not be released until it is known or notified that the terminal device 20 has successfully switched), and the network device can adjust the timing of sending the third message to reduce the occupation of network side resources.

[0115] 5. In the case where the first condition and / or the second condition is met, adjusting the threshold value of the third condition or the fourth condition based on the relevant measurement information of the cell, and / or adjusting the candidate cell indicated by the third condition or the fourth condition. As described above, according to the relevant measurement information of the neighboring cell measured by the terminal device 20 when the terminal device 20 receives the remedial scheme or when the remedial scheme is met, the network device can determine the measurement value of the previously configured candidate target PCell and PSCell, and combine the corresponding event and threshold to adjust the specific parameters of the triggering event, such as A3-Offset, a5-Threshold1, a5-Threshold2, and triggering time (TTT), so that the event triggers early; in addition, the network device can also find that the measurement value of the cell that is not originally configured as a target cell is not bad, and in the future, the cell can be configured to the terminal device 20, or vice versa, the measurement value of the originally configured target cell is poor, and in the future, the cell will not be configured to the terminal device 20, so as to realize the dynamic change of the target cell and / or the candidate cell.

[0116] 6. Adjusting the configuration node based on the relevant information of the configuration node of the CPC. As described above, according to the configuration node information of the CPC, the node receiving the information reported by the terminal device 20 can forward the above-mentioned CPC related information that needs to be optimized to the configuration node, so that the node optimizes the subsequent CPC configuration. Among them, the CPC configuration can include but is not limited to: the candidate target PSCell configured by the CPC to the terminal device 20, and / or the corresponding CPC condition, etc.

[0117] FIG. 6 is a device schematic diagram illustrating an information transmission device according to an embodiment of the present disclosure. As shown in FIG. 6, the information transmission device 600 can at least include the following modules.

[0118] The sending module 601 is configured to send a second message to the network device, wherein the second message includes first data, and the first data is related information after the terminal device receives a third message, or related information when or after the terminal device receives a first message.

[0119] In addition, the following can also be included:

[0120] The receiving module 602 is configured to receive a first message, wherein the first message is sent by the network device, and the first message is used to instruct the terminal device to perform cell switching in the case where a first condition and / or a second condition is met.

[0121] The receiving module 603 is configured to receive a third message sent by the network device, wherein the third message is used to instruct the terminal device to perform cell switching in the case where a third condition and a fourth condition are met.

[0122] 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: in the case where the terminal device does not satisfy the third condition and / or the fourth condition, the cell switching is performed in the case where the first condition or the second condition received is satisfied.

[0123] In addition, the first message can also be used to instruct the terminal device to send the first data.

[0124] Or when the first message does not instruct the terminal device to send the first data, the receiving module 604 can also be included, which is configured to receive a fourth message sent by the network device, wherein the fourth message is used to instruct the terminal device to send the first data.

[0125] The first data includes at least one of the following: the satisfaction of the third condition and / or the fourth condition when the first message is received, or when the radio link failure or the switching failure occurs; the time difference between the time when the third condition or the fourth condition is satisfied and the time when the first message is received; the time difference between the time when the third message is received and the time when the first message is received; the relevant measurement information of the adjacent cell when the first condition or the second condition is satisfied; the relevant information of the configuration node of the conditional secondary cell change.

[0126] The first condition includes conditional switching only; the second condition includes conditional switching with a secondary cell; the third condition includes a conditional switching event; and the fourth condition includes a conditional secondary cell addition / change event.

[0127] FIG. 7 is a device schematic diagram further illustrating an information transmission device according to an embodiment of the present disclosure. As shown in FIG. 7, the information transmission device 700 can at least include the following modules.

[0128] The receiving module 701 is configured to receive a second message sent by a terminal device, wherein the second message includes first data, and the first data is relevant information after the terminal device receives a third message, or relevant information when or after the terminal device receives a first message.

[0129] In addition, the information transmission device 700 can also include:

[0130] The sending module 702 is configured to send the first message to the terminal device in the case where the terminal device does not satisfy the third condition and / or the fourth condition, wherein the first message is sent by the network device, and the first message is used to instruct the terminal device to perform cell switching in the case where the first condition or the second condition is satisfied.

[0131] The sending module 703 is configured to send the 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 switching in the case where the third condition and the fourth condition are satisfied.

[0132] The adjusting module 704 is configured to adjust the third condition and the fourth condition based on the first data. The adjustment can include at least one of the following: adjusting a threshold of one of the third condition or the fourth condition in a case where the one is met; adjusting thresholds of both the third condition and the fourth condition in a case where neither of the third condition and the fourth condition is met; adjusting a time difference between a time when the one of the third condition or the fourth condition is met and a time when the first message is sent in a case where the one of the third condition or the fourth condition is met; 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 met; adjusting a threshold of the third condition or the fourth condition based on relevant measurement information of the cell in a case where the first condition and / or the second condition is met, and / or adjusting a candidate cell indicated by the third condition or the fourth condition; and adjusting a configuration node of the CPC based on relevant information of the configuration node.

[0133] The first message can also be used to instruct the terminal device to send the first data.

[0134] When the first message does not instruct the terminal device to send the first data, the sending module 705 can be further configured to send a fourth message to the terminal device, where the fourth message is used to instruct the terminal device to send the first data.

[0135] The first data includes at least one of the following: a case where the third condition and / or the fourth condition is met when the first message is received, or a case where a radio link failure or a handover failure occurs; a time difference between a time when the third condition or the fourth condition is met and a time when the first message is received; a time difference between a time when the third message is received and a time when the first message is received; relevant measurement information of a neighboring cell in a case where the first condition or the second condition is met; and relevant information of a configuration node of a conditional secondary cell change.

[0136] The first condition includes conditional handover only; the second condition includes conditional handover with a secondary cell; the third condition includes a conditional handover event; and the fourth condition includes a conditional secondary cell addition / change event.

[0137] FIG. 8 is a hardware block diagram of 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 configured to store computer readable instructions. When the computer readable instructions are loaded and run by the processor, the processor performs the information transmission method as described above.

[0138] The electronic device 800 shown in FIG. 8 specifically includes a central processing unit (CPU) 801, a graphics processing unit (GPU) 802, and a memory 803. These units are connected to each other through a bus 804. The central processing unit (CPU) 801 and / or the graphics processing unit (GPU) 802 can be used as the above-described processor, and the memory 803 can be used as the above-described memory storing computer readable instructions. In addition, the electronic device 800 can further include a communication unit 805, a storage unit 806, an output unit 807, an input unit 808, and an external device 809, which are also connected to the bus 804.

[0139] FIG. 9 is a schematic diagram illustrating a computer program product according to an embodiment of the present disclosure. As shown in FIG. 9, a computer program product 900 according to an embodiment of the present disclosure has stored thereon a computer program 901. When the computer program 901 is executed by a processor, the information transmission method described with reference to the above drawings is performed. The computer program product includes, but is not limited to, for example, a volatile memory and / or a non-volatile memory. The volatile memory may, for example, include a random access memory (RAM) and / or a cache memory, etc. The non-volatile memory may, for example, include a read-only memory (ROM), a hard disk, a flash memory, an optical disk, a magnetic disk, etc.

[0140] In the above, the information transmission method, apparatus, electronic device, and computer program product according to an embodiment of the present disclosure are described with reference to the drawings, and according to the information transmission method of the present disclosure, the network device is helped to understand the current situation and make corresponding adjustment by the terminal device reporting the relevant information after receiving the remedy scheme corresponding to the dual connectivity, so as to realize the dual connectivity of the terminal device as soon as possible.

[0141] Those of ordinary skill in the art can realize that the units and algorithm steps of each example described in combination with the embodiments disclosed herein can be realized in electronic hardware, or a combination of computer software and electronic hardware. Whether the functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. A person 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 the present disclosure.

[0142] The basic principles of the present disclosure are described above in combination with specific embodiments, but it should be noted that the advantages, advantages, effects, etc. mentioned in the present disclosure are only examples and are not limiting, and these advantages, advantages, effects, etc. cannot be considered as the must-have of each embodiment of the present disclosure. In addition, the above specific details are only for the purpose of example and for the purpose of understanding, and the above details do not limit the present disclosure to the must-use specific details.

[0143] The block diagrams of devices, apparatuses, equipment, systems referred to in the present disclosure are merely illustrative examples and are not intended to require or imply that the connection, arrangement, configuration must be as shown in the block diagrams. These devices, apparatuses, equipment, systems can be connected, arranged, configured in any manner as will be appreciated by those skilled in the art. Words such as "include," "contain," "have," etc. are open-ended words that are to be interpreted to mean "including but not limited to," and are to be interpreted not to exclude other items. The words "or" and "and" as used herein are to be interpreted as the word "and / or," and are to be interpreted not to exclude other items. The word "such as" as used herein is to be interpreted as the phrase "such as but not limited to," and is to be interpreted not to exclude other items.

[0144] Also, as used herein, the term "or" as used in the context of "at least one of A, B, or C" means A or B or C or any combination thereof. Further, the term "example" is used to mean "serving as an example, instance, or illustration," and is not to be construed as preferred or advantageous over other examples. The term "include" is used to mean "comprise or consist of, whether or not associated with the term "including."

[0145] It is also important to note that the systems and methods of the present disclosure can be embodied in a variety of forms including, but not limited to, a data processor, a computer program product, a computer, one or more tangible computer readable storage devices, one or more computer-implemented methods, information, or a bit of information. Additionally, the systems and methods of the present disclosure can be embodied as one or more computers or computer-implements methods that can be used in a networked environment.

[0146] Various changes, modifications and improvements in the herein described technologies can be made within the teachings of the technology, particularly in light of the above teachings. It is therefore intended that the here disclosed technology not be limited to the particular composition, means, methods and / or acts described as the only approach to implementing the here disclosed technology. Accordingly, the here disclosed technology is to be considered as broadly applicable in the art implicated by this disclosure. The scope of the here disclosed technology is not to be understood as limited to the particular configuration, means, methods and / or acts described and shown, nor is it understood to be limited to only the aspects specifically mentioned. It is contemplated that the here disclosed technology can be implemented in a wide variety of ways, and that the here disclosed technology can be implemented in any suitable combination of hardware, software, firmware, or the like. Therefore, the scope of the here disclosed technology is to be understood as not limited to the particular examples disclosed herein but only to what the Claims shall protect. It is therefore understood that within the scope of the present disclosure, the systems and methods can be practiced otherwise than as specifically described without departing from the spirit and scope of the technology.

[0147] The above description of the disclosed aspects is provided to enable any person skilled in the art to make or use the present disclosure. Various modifications to these aspects will be readily apparent to those skilled in the art, and the generic principles defined herein can be applied to other aspects without departing from the scope of the present disclosure. Thus, the present disclosure is not intended to be limited to the aspects shown herein but is to be accorded the widest scope consistent with the claims, the principles and the novel features disclosed herein.

[0148] The foregoing description has been presented for the purposes of illustration and description. Furthermore, the description is not intended to limit the embodiments of the disclosure to the forms disclosed herein. Although the various example aspects and embodiments have been described herein with regard to particular aspects and embodiments, those skilled in the art will recognize that certain modifications, changes, substitutions, additions and sub-combinations can be made without departing from the spirit of the disclosure.

Claims

1. An information transmission method, executed by a terminal device, the method comprising: Send a second message to the network device. The second message includes first data, which is related information after the terminal device receives the third message, or related information when or after receiving the first message.

2. The information transmission method as described in claim 1, wherein, The method further includes: Before sending the second message to the network device, a first message sent by the network device is received, 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.

3. The information transmission method as described in claim 2, wherein, The method further includes: Before receiving the first message sent by the network device, a third message sent by the network device is received, 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.

4. The information transmission method as described in claim 3, wherein, The method further includes: If the terminal device does not meet the third condition and / or the fourth condition, cell handover shall be performed if the received first condition or second condition is met.

5. The information transmission method as described in claim 1, wherein, The first data includes at least one of the following: When or after receiving the first message, or when a wireless link failure or handover failure occurs, the satisfaction of the third and / or fourth conditions; The time difference between the moment when the third or fourth condition is satisfied and the moment when the first message is received; The time difference between the moment the third message is received and the moment the first message is received; When the first or second condition is met, the terminal device measures the relevant information of the neighboring cells; Information related to the configuration nodes of the conditional auxiliary cell.

6. The information transmission method as described in claim 5, wherein, The satisfaction of the third and / or fourth conditions includes at least one of the following: Neither the third nor the fourth condition was met; One of the third or fourth conditions is met, while the other is not.

7. The information transmission method as described in claim 2, wherein, The first message is also used to instruct the terminal device to send the first data.

8. The information transmission method as described in claim 1, wherein, The method further includes: Receive the fourth message sent by the network device. 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 includes condition switching CHO; The second condition includes conditional handover with secondary cell (CHO) with SCG; The third condition includes a condition switching event; The fourth condition includes the conditional cell addition / change event.

10. An information transmission method, executed by a network device, the method comprising: Receive the second message sent by the terminal device. The second message includes first data, which is related information after the terminal device receives the third message, or related information when or after receiving the first message.

11. The information transmission method as described in claim 10, wherein, The method further includes: Before receiving the second message sent by the terminal device, a first message is sent to 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.

12. The information transmission method as described in claim 11, wherein, The method further includes: Before sending the first message to the terminal device, a third message is sent to the terminal device. The third message is used to instruct the terminal device to perform cell handover if the third and fourth conditions are met.

13. The information transmission method as described in claim 12, wherein, The method further includes: Based on the first data, the third and fourth conditions are adjusted.

14. The information transmission method as described in claim 12, wherein, The method further includes: If the terminal device does not meet the third condition and / or the fourth condition, the first message is sent to the terminal device.

15. The information transmission method as described in claim 10, wherein, The first data includes at least one of the following: When the terminal device receives the first message or after it receives the first message, or when a wireless link failure or handover failure occurs, the third condition and / or the fourth condition are satisfied. The time difference between the moment when the third or fourth condition is met and the moment 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; When the first or second condition is met, the terminal device measures the relevant information of the neighboring cells; Information related to the configuration nodes of the conditional auxiliary cell.

16. The information transmission method as described in claim 15, wherein, The conditions for the third and / or fourth conditions to be met include at least one of the following: Neither the third nor the fourth condition was met; One of the third or fourth conditions is met, while the other is not.

17. The information transmission method as described in claim 13, wherein, The adjustment of the third and fourth conditions based on the first data includes: If either the third or the fourth condition is met, the threshold value of the other condition is adjusted. If neither the third nor the fourth condition is met, the threshold values ​​for both parties are adjusted. If either the third or the fourth condition is met, the time difference between the moment when the condition is met and the moment when the first message is sent is adjusted. Adjust the time difference between the time when the third message is sent and the time when the first condition and / or the second condition is met; If the first condition and / or the second condition are met, the threshold value of the third condition or the fourth condition is adjusted based on the relevant measurement information of the cell, and / or the candidate cell indicated by the third condition or the fourth condition is adjusted; Based on the relevant information of the configuration node of the conditional auxiliary cell change, the configuration node is adjusted.

18. The information transmission method as described in claim 11, wherein, The first message is also used to instruct the terminal device to send the first data.

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

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

21. An information transmission device, comprising: The sending module is used to send a second message to the network device. The second message includes first data, which is related information after the terminal device receives the third message, or related information when or after receiving the first message.

22. An information transmission device, comprising: The receiving module is used to receive the second message sent by the terminal device. The second message includes first data, which is related information after the terminal device receives the third message, or related information when or after receiving the first message.

23. An electronic device, comprising: Memory, used to store computer-readable instructions; as well as A processor for executing the computer-readable instructions, causing the electronic device to perform the information transmission method as described in any one of claims 1 to 20.

24. A computer program product comprising a computer program, wherein, When the computer program is executed by a processor, it implements the information transmission method according to any one of claims 1 to 20.

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