Service data transmission, information configuration method and apparatus, terminal and base station

Abstract

The application provides a service data transmission method, an information configuration method, an apparatus, a terminal and a base station, and relates to the technical field of communication. The service data transmission method comprises the following steps: receiving an RRC reconfiguration message sent by a source base station, the RRC reconfiguration message being used for indicating terminal switching or primary cell change, and the RRC reconfiguration message containing the configuration of a first target resource used for target service transmission; and mapping target service data to the corresponding first target resource for transmission according to the RRC reconfiguration message, wherein the first target resource comprises one or more of the following: a secondary cell under the source base station; a secondary base station corresponding to the source base station; a primary cell under a secondary base station corresponding to the source base station; a secondary cell under the secondary base station corresponding to the source base station; a secondary cell under a target base station; a secondary base station corresponding to the target base station; a primary cell under the secondary base station corresponding to the target base station; and a secondary cell under the secondary base station corresponding to the target base station. The above scheme can guarantee the transmission requirement of the target service in the process of switching or primary cell change.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of communication, in particular to a service data transmission method and device, an information configuration method and device, a terminal and a base station. BACKGROUND

[0002] In the prior art, when a terminal initiates a dual active protocol stack (DAPS) handover, neither carrier aggregation (CA) nor dual connectivity (DC) can be used. For eXtened Reality (XR) services, if there is a high burst of large data transmission during the handover process, even if the handover delay is reduced to 0, the transmission requirements of the XR service cannot be guaranteed. SUMMARY

[0003] Embodiments of the present application provide a service data transmission method and device, an information configuration method and device, a terminal and a base station to solve the problem that the transmission requirements of a specific service with a high burst of large data transmission cannot be met during a DAPS handover process.

[0004] To solve the above technical problem, the embodiments of the present application provide a service data transmission method applied to a terminal, comprising:

[0005] receiving a radio resource control (RRC) reconfiguration message sent by a source base station, the RRC reconfiguration message containing configuration of first target resources for target service transmission;

[0006] mapping target service data to the corresponding first target resources for transmission according to the RRC reconfiguration message;

[0007] The first target resources include one or more of the following:

[0008] a secondary cell under the source base station;

[0009] a secondary base station corresponding to the source base station;

[0010] a primary cell under a secondary base station corresponding to the source base station;

[0011] a secondary cell under a secondary base station corresponding to the source base station;

[0012] a secondary cell under the target base station;

[0013] a secondary base station corresponding to the target base station;

[0014] a primary cell under a secondary base station corresponding to the target base station;

[0015] a secondary cell under a secondary base station corresponding to the target base station.

[0016] Optionally, the target service is indicated by one or more of the following:

[0017] a service number;

[0018] a session number;

[0019] a data radio bearer (DRB) identity;

[0020] a quality of service (QoS) flow identity;

[0021] a service frame type.

[0022] Optionally, the configuration of the first target resource comprises at least one of the following:

[0023] a primary cell number of the source base station;

[0024] a base station identity of the source base station;

[0025] a secondary cell number of the source base station;

[0026] a time-frequency resource configuration of the secondary cell of the source base station;

[0027] a base station identity of a secondary base station corresponding to the source base station;

[0028] a cell number of the secondary base station corresponding to the source base station;

[0029] a time-frequency resource configuration of the cell of the secondary base station corresponding to the source base station;

[0030] a primary cell number of the target base station;

[0031] a base station identity of the target base station;

[0032] a secondary cell number of the target base station;

[0033] a time-frequency resource configuration of the secondary cell of the target base station;

[0034] a base station identity of a secondary base station corresponding to the target base station;

[0035] a cell number of the secondary base station corresponding to the target base station;

[0036] a time-frequency resource configuration of the cell of the secondary base station corresponding to the target base station.

[0037] Optionally, the RRC reconfiguration message further comprises first indication information, the first indication information being used to indicate whether uplink transmission can be performed by using uplink resources of the source base station;

[0038] The mapping of the target service data to the corresponding first target resource for transmission according to the RRC reconfiguration message comprises:

[0039] In a case where the first indication information indicates that uplink transmission can be performed using an uplink resource of the source base station, the target service data is transmitted to the source base station through the uplink resource.

[0040] Optionally, in a case where the first target resource comprises one or more of a secondary cell under the source base station, a secondary base station corresponding to the source base station, a primary cell under the secondary base station corresponding to the source base station, and a secondary cell under the secondary base station corresponding to the source base station, the usage condition of the first target resource comprises any one of the following:

[0041] In a case where the configuration of the first target resource is carried in the received RRC reconfiguration message, it is determined that the first target resource can be used;

[0042] In a case where the data volume of the target service of the terminal is greater than or equal to a first preset threshold, it is determined that the first target resource can be used.

[0043] Optionally, in a case where the first target resource comprises one or more of a secondary cell under the target base station, a secondary base station corresponding to the target base station, a primary cell under the secondary base station corresponding to the target base station, and a secondary cell under the secondary base station corresponding to the target base station, the usage condition of the first target resource comprises any one of the following:

[0044] After the terminal synchronizes with the target base station, it is determined that the first target resource can be used;

[0045] In a case where the data volume of the target service of the terminal is greater than or equal to a second preset threshold, it is determined that the first target resource can be used.

[0046] Optionally, in a case where the first target resource comprises one or more of a secondary cell under the source base station, a secondary base station corresponding to the source base station, a primary cell under the secondary base station corresponding to the source base station, and a secondary cell under the secondary base station corresponding to the source base station, after receiving the radio resource control (RRC) reconfiguration message sent by the source base station and indicating terminal handover or primary cell change, the following at least one is further included:

[0047] In a DAPS handover process, first release signaling sent by the source base station is received, the first release signaling being used to indicate release of at least one secondary cell under the source base station and / or at least one cell under the secondary base station corresponding to the source base station;

[0048] In a DAPS handover process, if the data volume of the target service of the terminal is less than or equal to a first threshold, second release signaling is sent to the source base station, the second release signaling being used to request release of the first target resource;

[0049] After the DAPS handover is completed, a source cell of the source base station and the first target resource are released.

[0050] releasing the first target resource after the DAPS handover fails.

[0051] Optionally, in a case where the first target resource comprises one or more of a secondary cell under a target base station, a secondary base station corresponding to the target base station, a primary cell under the secondary base station corresponding to the target base station, and a secondary cell under the secondary base station corresponding to the target base station, after receiving the radio resource control (RRC) reconfiguration message sent by the source base station and indicating terminal handover or primary cell change, the method further comprises at least one of the following:

[0052] receiving third release signaling sent by the target base station during the DAPS handover, the third release signaling being used to indicate release of at least one secondary cell under the target base station and / or at least one cell under the secondary base station corresponding to the target base station;

[0053] during the DAPS handover, if a data volume of a target service of the terminal is less than or equal to a second threshold value, sending fourth release signaling to the target base station, the fourth release signaling being used to request release of the first target resource;

[0054] releasing the first target resource after the DAPS handover fails.

[0055] Embodiments of the present application also provide an information configuration method, applied to a source base station, comprising:

[0056] sending, to a terminal, a radio resource control (RRC) reconfiguration message indicating terminal handover or primary cell change, the RRC reconfiguration message containing configuration of a first target resource used for target service transmission;

[0057] The first target resource comprises one or more of the following:

[0058] a secondary cell under the source base station;

[0059] a secondary base station corresponding to the source base station;

[0060] a primary cell under the secondary base station corresponding to the source base station;

[0061] a secondary cell under the secondary base station corresponding to the source base station;

[0062] a secondary cell under the target base station;

[0063] a secondary base station corresponding to the target base station;

[0064] a primary cell under the secondary base station corresponding to the target base station;

[0065] a secondary cell under the secondary base station corresponding to the target base station.

[0066] Optionally, the target service is indicated by one or more of the following:

[0067] service number;

[0068] session number;

[0069] data radio bearer DRB identity;

[0070] quality of service QoS flow identity;

[0071] service frame type.

[0072] Optionally, the configuration of the first target resource comprises at least one of the following:

[0073] primary cell number of the source base station;

[0074] base station identity of the source base station;

[0075] secondary cell number under the source base station;

[0076] time-frequency resource configuration of the secondary cell under the source base station;

[0077] base station identity of the secondary base station corresponding to the source base station;

[0078] cell number under the secondary base station corresponding to the source base station;

[0079] time-frequency resource configuration of the cell under the secondary base station corresponding to the source base station;

[0080] primary cell number of the target base station;

[0081] base station identity of the target base station;

[0082] secondary cell number under the target base station;

[0083] time-frequency resource configuration of the secondary cell under the target base station;

[0084] base station identity of the secondary base station corresponding to the target base station;

[0085] cell number under the secondary base station corresponding to the target base station;

[0086] time-frequency resource configuration of the cell under the secondary base station corresponding to the target base station.

[0087] Optionally, in the case that the first target resource comprises one or more of the following: a secondary cell under the target base station, a secondary base station corresponding to the target base station, a primary cell under the secondary base station corresponding to the target base station, and a secondary cell under the secondary base station corresponding to the target base station, the manner of obtaining the configuration of the first target resource comprises:

[0088] sending a handover request message to the target base station, wherein the handover request message carries an indication that the target service of the terminal uses carrier aggregation CA resources of the target base station in the DAPS process.

[0089] receiving a handover request acknowledgement message sent by the target base station, the handover request acknowledgement message carrying the configuration of the first target resource.

[0090] Optionally, the handover request message further carries indication information of a secondary cell under the source base station.

[0091] Optionally, the RRC reconfiguration message further comprises: first indication information, the first indication information being used to indicate whether uplink transmission can be performed by using the uplink resource of the source base station.

[0092] The method further comprises:

[0093] receiving target service data sent by the terminal through the uplink resource.

[0094] Optionally, in a case where the first target resource comprises one or more of a secondary cell under the source base station, a secondary base station corresponding to the source base station, a primary cell under the secondary base station corresponding to the source base station, and a secondary cell under the secondary base station corresponding to the source base station, the method further comprises at least one of the following:

[0095] In the DAPS handover process, first release signaling is sent to the terminal, the first release signaling being used to indicate release of at least one secondary cell under the source base station and / or at least one cell under the secondary base station corresponding to the source base station.

[0096] receiving second release signaling sent by the terminal, the second release signaling being sent in a case where a data amount of a target service of the terminal in the DAPS handover process is less than or equal to a first threshold value, the second release signaling being used to request release of the first target resource.

[0097] After the DAPS handover is completed, a source cell of the source base station and the first target resource are released.

[0098] After the DAPS handover fails, the first target resource is released.

[0099] Embodiments of the present application further provide an information configuration method, applied to a target base station, comprising:

[0100] receiving a handover request message sent by a source base station, the handover request message carrying indication that a target service of a terminal uses carrier aggregation (CA) resources of the target base station in a DAPS process;

[0101] sending a handover request acknowledgement message to the source base station, the handover request acknowledgement message carrying configuration of a first target resource.

[0102] The first target resource includes one or more of the following: a secondary cell under the target base station, a secondary base station corresponding to the target base station, a primary cell under the secondary base station corresponding to the target base station, and a secondary cell under the secondary base station corresponding to the target base station.

[0103] Optionally, the handover request message further carries indication information of a secondary cell under the source base station.

[0104] Optionally, after the handover request confirmation message is sent to the source base station, at least one of the following is further included:

[0105] In the DAPS handover process, third release signaling is sent to the terminal, and the third release signaling is used to instruct to release at least one secondary cell under the target base station and / or at least one cell under the secondary base station corresponding to the target base station.

[0106] The fourth release signaling is sent by the terminal in a case where a data volume of the target service in the DAPS handover process is less than or equal to a second threshold value, and the fourth release signaling is used to request to release the first target resource.

[0107] After the DAPS handover fails, the first target resource is released.

[0108] Embodiments of the present application also provide a terminal, including a memory, a transceiver, and a processor.

[0109] The memory is used to store a computer program; the transceiver is used to transceive data under control of the processor; and the processor is used to read the computer program in the memory and perform the following operations:

[0110] An RRC reconfiguration message indicating terminal handover or primary cell change is received by the transceiver, the RRC reconfiguration message containing configuration of a first target resource for target service transmission;

[0111] According to the RRC reconfiguration message, target service data is mapped and transmitted on the corresponding first target resource;

[0112] The first target resource includes one or more of the following:

[0113] A secondary cell under the source base station;

[0114] A secondary base station corresponding to the source base station;

[0115] A primary cell under the secondary base station corresponding to the source base station;

[0116] A secondary cell under the secondary base station corresponding to the source base station;

[0117] A secondary cell under the target base station;

[0118] a secondary base station corresponding to the target base station;

[0119] a primary cell under the secondary base station corresponding to the target base station;

[0120] a secondary cell under the secondary base station corresponding to the target base station.

[0121] Optionally, the RRC reconfiguration message further comprises first indication information, the first indication information being used to indicate whether uplink transmission can be performed by using uplink resources of the source base station; the processor is used to read the computer program in the memory and perform the following operations:

[0122] In a case where the first indication information indicates that uplink transmission can be performed by using the uplink resources of the source base station, the target service data is sent to the source base station by using the uplink resources.

[0123] Optionally, in a case where the first target resource comprises one or more of a secondary cell under the source base station, a secondary base station corresponding to the source base station, a primary cell under the secondary base station corresponding to the source base station, and a secondary cell under the secondary base station corresponding to the source base station, the use condition of the first target resource comprises any one of the following:

[0124] In a case where the configuration of the first target resource is carried in the received RRC reconfiguration message, it is determined that the first target resource can be used;

[0125] In a case where the data volume of the target service of the terminal is greater than or equal to a first preset threshold, it is determined that the first target resource can be used.

[0126] Optionally, in a case where the first target resource comprises one or more of a secondary cell under the target base station, a secondary base station corresponding to the target base station, a primary cell under the secondary base station corresponding to the target base station, and a secondary cell under the secondary base station corresponding to the target base station, the use condition of the first target resource comprises any one of the following:

[0127] After the terminal is synchronized with the target base station, it is determined that the first target resource can be used;

[0128] In a case where the data volume of the target service of the terminal is greater than or equal to a second preset threshold, it is determined that the first target resource can be used.

[0129] Optionally, in a case where the first target resource comprises one or more of a secondary cell under the source base station, a secondary base station corresponding to the source base station, a primary cell under the secondary base station corresponding to the source base station, and a secondary cell under the secondary base station corresponding to the source base station, the processor used to read the computer program in the memory further performs at least one of the following operations:

[0130] In the DAPS handover process, the first release signaling sent by the source base station is received through the transceiver, and the first release signaling is used to indicate release of at least one secondary cell under the source base station and / or at least one cell under the secondary base station corresponding to the source base station;

[0131] In the DAPS handover process, if the data amount of the target service of the terminal is less than or equal to a first threshold, the second release signaling is sent to the source base station through the transceiver, and the second release signaling is used to request release of the first target resource;

[0132] After the DAPS handover is completed, the source cell of the source base station and the first target resource are released.

[0133] After the DAPS handover fails, the first target resource is released.

[0134] Optionally, in a case where the first target resource includes one or more of the following: a secondary cell under the target base station, a secondary base station corresponding to the target base station, a primary cell under the secondary base station corresponding to the target base station, and a secondary cell under the secondary base station corresponding to the target base station, the processor, used for reading the computer program in the memory, further performs at least one of the following operations:

[0135] In the DAPS handover process, the third release signaling sent by the target base station is received through the transceiver, and the third release signaling is used to indicate release of at least one secondary cell under the target base station and / or at least one cell under the secondary base station corresponding to the target base station.

[0136] In the DAPS handover process, if the data amount of the target service of the terminal is less than or equal to a second threshold, the fourth release signaling is sent to the target base station through the transceiver, and the fourth release signaling is used to request release of the first target resource.

[0137] After the DAPS handover fails, the first target resource is released.

[0138] Embodiments of the present application also provide a base station, which is a source base station, comprising a memory, a transceiver, and a processor:

[0139] The memory is used to store a computer program; the transceiver is used to transceive data under control of the processor; and the processor is used to read the computer program in the memory and perform the following operations:

[0140] A radio resource control (RRC) reconfiguration message indicating terminal handover or primary cell change is sent to the terminal through the transceiver, and the RRC reconfiguration message contains configuration of a first target resource for target service transmission.

[0141] The first target resource includes one or more of the following:

[0142] A secondary cell under the source base station;

[0143] A secondary base station corresponding to the source base station;

[0144] A primary cell under the secondary base station corresponding to the source base station;

[0145] A secondary cell under the secondary base station corresponding to the source base station;

[0146] A secondary cell under the target base station;

[0147] A secondary base station corresponding to the target base station;

[0148] A primary cell under the secondary base station corresponding to the target base station;

[0149] A secondary cell under the secondary base station corresponding to the target base station.

[0150] Optionally, in a case where the first target resource comprises one or more of a secondary cell under the target base station, a secondary base station corresponding to the target base station, a primary cell under the secondary base station corresponding to the target base station, and a secondary cell under the secondary base station corresponding to the target base station, the processor is configured to read the computer program in the memory and perform the following operations:

[0151] sending, by the transceiver, a handover request message to the target base station, the handover request message carrying an indication that target services of the terminal use carrier aggregation CA resources of the target base station in a DAPS process;

[0152] receiving, by the transceiver, a handover request acknowledgement message sent by the target base station, the handover request acknowledgement message carrying a configuration of the first target resource.

[0153] Embodiments of the present application also provide a base station, which is a target base station, comprising a memory, a transceiver, and a processor:

[0154] The memory is configured to store a computer program; the transceiver is configured to transceive data under control of the processor; and the processor is configured to read the computer program in the memory and perform the following operations:

[0155] receiving, by the transceiver, a handover request message sent by a source base station, the handover request message carrying an indication that target services of a terminal use carrier aggregation CA resources of the target base station in a DAPS process;

[0156] sending, by the transceiver, a handover request acknowledgement message to the source base station, the handover request acknowledgement message carrying a configuration of a first target resource;

[0157] The first target resource includes one or more of the following: a secondary cell under the target base station, a secondary base station corresponding to the target base station, a primary cell under the secondary base station corresponding to the target base station, and a secondary cell under the secondary base station corresponding to the target base station.

[0158] The embodiment of the present application further provides a service data transmission device applied to a terminal and comprising:

[0159] The first receiving unit is configured to receive a radio resource control (RRC) reconfiguration message sent by the source base station and indicating terminal switching or primary cell change, wherein the RRC reconfiguration message contains configuration of a first target resource for target service transmission;

[0160] The transmission unit is configured to map target service data to the corresponding first target resource for transmission according to the RRC reconfiguration message;

[0161] The first target resource includes one or more of the following:

[0162] a secondary cell under the source base station;

[0163] a secondary base station corresponding to the source base station;

[0164] a primary cell under the secondary base station corresponding to the source base station;

[0165] a secondary cell under the secondary base station corresponding to the source base station;

[0166] a secondary cell under the target base station;

[0167] a secondary base station corresponding to the target base station;

[0168] a primary cell under the secondary base station corresponding to the target base station;

[0169] a secondary cell under the secondary base station corresponding to the target base station.

[0170] The embodiment of the present application further provides an information configuration device applied to a source base station and comprising:

[0171] The first sending unit is configured to send a radio resource control (RRC) reconfiguration message to a terminal, wherein the RRC reconfiguration message indicates terminal switching or primary cell change and contains configuration of a first target resource for target service transmission;

[0172] The first target resource includes one or more of the following:

[0173] a secondary cell under the source base station;

[0174] a secondary base station corresponding to the source base station;

[0175] a primary cell under the secondary base station corresponding to the source base station;

[0176] The secondary cell under the secondary base station corresponding to the source base station;

[0177] The secondary cell under the target base station;

[0178] The secondary base station corresponding to the target base station;

[0179] The primary cell under the secondary base station corresponding to the target base station;

[0180] The secondary cell under the secondary base station corresponding to the target base station.

[0181] The embodiment of the present application also provides an information configuration device, which is applied to a target base station and comprises:

[0182] The second receiving unit is configured to receive a handover request message sent by a source base station, wherein the handover request message carries an indication that a target service of a terminal uses carrier aggregation (CA) resources of the target base station in a DAPS process;

[0183] The second sending unit is configured to send a handover request confirmation message to the source base station, wherein the handover request confirmation message carries the configuration of the first target resource.

[0184] The first target resource comprises one or more of the following: a secondary cell under the target base station, a secondary base station corresponding to the target base station, a primary cell under the secondary base station corresponding to the target base station, and a secondary cell under the secondary base station corresponding to the target base station.

[0185] The embodiment of the present application also provides a processor-readable storage medium, which stores a computer program, and the computer program is used to make the processor execute the method.

[0186] The beneficial effects of the present application are as follows:

[0187] The above scheme configures the configuration of the secondary cell under the source base station, the secondary base station corresponding to the source base station, the secondary cell under the target base station, and / or the secondary base station corresponding to the target base station for target service transmission in the RRC reconfiguration message, so that the terminal can map the target service data to the corresponding resources for transmission according to the configurations, thereby guaranteeing the transmission requirement of the target service in the handover or primary cell change process. BRIEF DESCRIPTION OF DRAWINGS

[0188] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the drawings needed in the embodiment or prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments described in the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0189] Figure 1A DAPS procedure schematic diagram is shown.

[0190] Figure 2 A protocol stack schematic diagram of the DAPS technology is shown.

[0191] Figure 3 A flowchart schematic diagram of a service data transmission method according to an embodiment of the application is shown.

[0192] Figure 4 A flowchart schematic diagram of an information configuration method according to an embodiment of the application is shown.

[0193] Figure 5 A flowchart schematic diagram of an information configuration method according to an embodiment of the application is shown.

[0194] Figure 6 A unit schematic diagram of a service data transmission apparatus according to an embodiment of the application is shown.

[0195] Figure 7 A structural diagram of a terminal according to an embodiment of the application is shown.

[0196] Figure 8 A unit schematic diagram of an information configuration apparatus according to an embodiment of the application is shown.

[0197] Figure 9 A structural diagram of a base station according to an embodiment of the application is shown.

[0198] Figure 10 A unit schematic diagram of an information configuration apparatus according to an embodiment of the application is shown. DETAILED DESCRIPTION

[0199] The technical solutions in the embodiments of the application will be described clearly and completely below with reference to the drawings in the embodiments of the application. Obviously, the described embodiments are some but not all of the embodiments of the application. Based on the embodiments in the application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the application.

[0200] The terms "first", "second", and the like in the specification and claims of the application are used to distinguish similar objects, and do not necessarily indicate a specific order or a chronological sequence. It should be understood that the data thus used can be interchanged under appropriate circumstances, so that the embodiments of the application described herein can be implemented in other than the order shown or described herein, for example. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion, for example, a process, method, system, product, or device that includes a list of steps or units does not necessarily limit the steps or units to those clearly listed, but can include other steps or units not clearly listed or inherent to such processes, methods, products, or devices.

[0201] The term "and / or" used in the embodiments of the present application describes an association relationship of associated objects, which means that there can be three relationships, for example, A and / or B can mean that A exists alone, A and B exist together, and B exists alone. The character " / " generally represents an "or" relationship between the associated objects. The term "multiple" in the embodiments of the present application means two or more, and other quantifiers are similar.

[0202] In the embodiments of the present application, the words such as "exemplary" or "for example" are used to represent as an example, illustration or description. Any embodiment or design scheme described as "exemplary" or "for example" in the embodiments of the present application should not be interpreted as more preferred or more advantageous than other embodiments or design schemes. Rather, the words such as "exemplary" or "for example" are intended to present the relevant concept in a specific manner.

[0203] The embodiments of the present application are described below with reference to the accompanying drawings. The service data transmission, information configuration method and device, terminal and base station provided by the embodiments of the present application can be applied to a wireless communication system. The wireless communication system can be a system using a 5th Generation (5G) mobile communication technology (hereinafter referred to as a 5G system), and those skilled in the art can understand that the 5G NR system is only an example and is not limited.

[0204] First, some concepts related to the embodiments of the present application are described as follows.

[0205] 1. Extended Reality (eXtened Reality, XR) service and its transmission characteristics

[0206] XR and Cloud Game (CG) are one of the most important 5G media applications. XR contains multiple data frames, each frame has its transmission characteristics and transmission requirements. For example, I-frame (Intra-coded picture) is intra-coded and can represent a complete picture, P-frame (Predicted picture) is inter-coded and only needs to carry different information from the previous frame. Therefore, I-frame has large data volume and high reliability requirements; P-frame has small data volume and relatively low reliability requirements compared to I-frame. XR service has requirements of low latency, high throughput and high reliability, and requires transmission of large data in a short time, which means that its burst throughput in a short time may be much higher than the average throughput. For example, the burst throughput of XR service with an average throughput of 100 Mbps in a short measurement window can reach 300 Mbps, and at the same time, high reliability needs to be guaranteed. XR is a general term for different types of reality, which refers to all real and virtual combined environments and human-computer interactions generated by computer technology and devices. It includes Augmented Reality (AR), Mixed Reality (MR) and Virtual Reality (VR) as representative forms. In XR service, service characteristic requirements are for data frames, such as scene, video mixed stream, and service characteristic requirements are: period 60 fps (frame per second); data rate 10 Mbps / 20 Mbps; PDB (packet delay budget) 30 ms (mandatory) or 10 / 15 / 60 ms (optional).

[0207] High throughput requirements limit the capacity of XR services. For example, simulation results show that a typical cell deployment supports 10 XR service users per cell.

[0208] 2. Handover

[0209] The handover procedure of the 5G system and the terminal-related process are mainly in the first step, the handover measurement, the sixth step, the source cell initiating the handover (through the radio resource control (RRC) synchronous reconfiguration command), and the eighth step, the handover to the target cell. In the handover measurement, the source base station sends an RRC reconfiguration message to the terminal, which contains the target cell information and the information for the terminal to access the target cell, including random access parameters. The source cell initiating the handover includes the random access process between the terminal and the target base station and the process of the terminal sending the RRC reconfiguration complete message corresponding to the RRC reconfiguration message indicating the handover to the source base station to the target base station. After the terminal receives the RRC synchronous reconfiguration command in the source cell and determines to switch to the target cell (the source cell initiates the handover), it is disconnected from the source cell and initiates synchronization to the target base station. Therefore, in the process from initiating the handover to completing the handover, the transmission of service data is interrupted.

[0210] 5G introduces a zero-interruption latency handover optimization dual active protocol stack (DAPS). In the handover process of the terminal, the terminal and the target cell establish a connection while maintaining the connection with the source cell, and the downlink data can be sent to the terminal through the source cell and the target cell. After the terminal completes the random access process with the target cell, it only sends uplink data in the target cell, but can send uplink feedback and retransmission in the source cell. The specific description is shown in Figure 1

[0211] The protocol stack of the DAPS technology is shown in Figure 2 The terminal uses a dual packet data convergence protocol (PDCP) protocol stack corresponding to the source cell and the target cell. The two PDCP entities perform duplicate packet detection and packet reordering functions in the same buffer, because the downlink data packets are sent through two cells respectively, and the same data packets may be sent, or the arrival time may be different and out of order.

[0212] DAPS is only applied in the case where the source cell and the target cell are both single cells, and CA (Carrier Aggregation) and DC (Dual Connectivity) cannot be used in the DAPS process.

[0213] Embodiments of the present application provide a service data transmission method and device, an information configuration method and device, a terminal and a base station, to solve the problem that the transmission requirements of specific services with high bursty and large data transmission cannot be met in the DAPS handover process.

[0214] ​The method and the device are based on the same application concept, and the implementation of the device and the method can be referred to each other because the principles of the method and the device for solving problems are similar, and the repeated parts will not be described.

[0215] As shown in Figure 3 The embodiment of the application provides a service data transmission method, applied to a terminal, comprising the following steps:

[0216] Step S301, receiving a radio resource control (RRC) reconfiguration message sent by a source base station, the RRC reconfiguration message indicating terminal switching or primary cell change;

[0217] The RRC reconfiguration message contains the configuration of first target resources for target service transmission.

[0218] It should be noted that the target service in the embodiment of the application refers to a service that may have a large amount of data transmission demand with high burst in the switching process, that is, the target service suddenly increases the data volume in the terminal switching process, for example, the target service is an XR service; the switching in the application refers to the RRC synchronous configuration scenario, including traditional switching and primary cell change, which can be understood as DAPS switching, and the RRC reconfiguration message needs to contain a DAPS indication in the usual case, which is used to indicate that the switching is DAPS switching.

[0219] It should be noted that the source base station refers to the base station accessed by the terminal before switching.

[0220] Step S302, according to the RRC reconfiguration message, mapping target service data to corresponding first target resources for transmission;

[0221] It should be noted that before the terminal completes the switching, the terminal can use the first target resources for data transmission to avoid the interruption of service transmission.

[0222] Optionally, the first target resources include one or more of the following:

[0223] A11, a secondary cell under the source base station;

[0224] It should be noted that when the first target resources include the secondary cell under the source base station, it can be considered that the terminal can use the uplink resources and / or downlink resources of the secondary cell under the source base station.

[0225] A12, a secondary base station corresponding to the source base station;

[0226] It should be noted that the secondary base station corresponding to the source base station refers to the auxiliary base station of the source base station, for example, the secondary base station can be a base station adjacent to the source base station.

[0227] It should be noted that when the first target resource includes the secondary base station corresponding to the source base station, it can be considered that the terminal can use the uplink resource and / or downlink resource of the secondary base station corresponding to the source base station.

[0228] A13, a primary cell under the secondary base station corresponding to the source base station;

[0229] It should be noted that when the first target resource includes the primary cell under the secondary base station corresponding to the source base station, it can be considered that the terminal can use the uplink resource and / or downlink resource of the primary cell under the secondary base station corresponding to the source base station.

[0230] A14, a secondary cell under the secondary base station corresponding to the source base station;

[0231] It should be noted that generally only the primary cell (i.e. the serving cell of the terminal) under the source base station is available, and the above several items are to configure the terminal with additional resources under the source base station in addition to the primary cell. For configuring the secondary cell under the source base station, it means that CA is available during the DAPS handover; for configuring the secondary base station corresponding to the source base station, the primary cell under the secondary base station, and the secondary cell under the secondary base station, it means that DC is available during the DAPS handover.

[0232] It should be noted that when the first target resource includes the secondary cell under the secondary base station corresponding to the source base station, it can be considered that the terminal can use the uplink resource and / or downlink resource of the secondary cell under the secondary base station corresponding to the source base station.

[0233] A15, a secondary cell under the target base station;

[0234] It should be noted that the target base station is the base station accessed by the terminal after completing the handover.

[0235] It should be noted that when the first target resource includes the secondary cell under the target base station, it can be considered that the terminal can use the uplink resource and / or downlink resource of the secondary cell under the target base station.

[0236] A16, a secondary base station corresponding to the target base station;

[0237] It should be noted that the secondary base station corresponding to the target base station is an auxiliary base station of the target base station, for example, the secondary base station can be a base station adjacent to the target base station.

[0238] It should be noted that when the first target resource includes the secondary base station corresponding to the target base station, it can be considered that the terminal can use the uplink resource and / or downlink resource of the secondary base station corresponding to the target base station.

[0239] A17, a primary cell under the secondary base station corresponding to the target base station;

[0240] It should be noted that when the first target resource includes a primary cell under a secondary base station corresponding to the target base station, it can be considered that the terminal can use the uplink resource and / or downlink resource of the primary cell under the secondary base station corresponding to the target base station.

[0241] A18, a secondary cell under a secondary base station corresponding to the target base station;

[0242] It should be noted that generally only the primary cell under the target base station is available, and the above several items are to configure the terminal with additional resources under the target base station in addition to the primary cell. For configuring the secondary cell under the target base station, it means that CA is available during the DAPS handover process; for configuring the secondary base station corresponding to the target base station, the primary cell under the secondary base station, and the secondary cell under the secondary base station, it means that DC is available during the DAPS handover process.

[0243] It should be further noted that when the first target resource includes a secondary cell under a secondary base station corresponding to the target base station, it can be considered that the terminal can use the uplink resource and / or downlink resource of the secondary cell under the secondary base station corresponding to the target base station.

[0244] It should be noted that the source base station configures the secondary cell and / or secondary base station resource dedicated to a specific service during the handover process for the terminal, so as to meet the data transmission demand of the specific service and avoid service transmission interruption.

[0245] It should be noted that the target service is indicated by one or more of the following:

[0246] B11, service number (Service ID);

[0247] B12, session number (Session ID);

[0248] B13, data radio bearer (DRB) identifier (DRB ID);

[0249] B14, quality of service (QoS) flow identifier (QoS flow ID);

[0250] B15, service frame type (Frame Type);

[0251] For example, the service frame type may be, for example, I frame, P frame, B frame, etc.

[0252] Optionally, the configuration of the first target resource includes at least one of the following:

[0253] C101, primary cell number of the source base station;

[0254] C102, base station identifier of the source base station;

[0255] C103, secondary cell number under the source base station;

[0256] C104, time-frequency resource configuration of the secondary cell under the source base station;

[0257] For example, the time-frequency resource configuration can be a bandwidth part (BWP) configuration.

[0258] C105, base station identifier of the secondary base station corresponding to the source base station;

[0259] C106, cell number of the cell under the secondary base station corresponding to the source base station;

[0260] C107, time-frequency resource configuration of the cell under the secondary base station corresponding to the source base station;

[0261] C108, primary cell number of the target base station;

[0262] C109, base station identifier of the target base station;

[0263] C110, secondary cell number under the target base station;

[0264] C111, time-frequency resource configuration of the secondary cell under the target base station;

[0265] C112, base station identifier of the secondary base station corresponding to the target base station;

[0266] C113, cell number of the cell under the secondary base station corresponding to the target base station;

[0267] C114, time-frequency resource configuration of the cell under the secondary base station corresponding to the target base station.

[0268] Optionally, the RRC reconfiguration message further includes first indication information, the first indication information being used to indicate whether uplink transmission can be performed by using uplink resources of the source base station;

[0269] The mapping of the target service data to the corresponding first target resource for transmission according to the RRC reconfiguration message includes:

[0270] In a case where the first indication information indicates that uplink transmission can be performed by using the uplink resources of the source base station, the target service data is sent to the source base station through the uplink resources.

[0271] It should be noted that, in a case where the RRC reconfiguration message does not include the configuration of the secondary cell of the source base station and the secondary base station corresponding to the source base station, the uplink resources of the source base station only include resources corresponding to the primary cell; in a case where the RRC reconfiguration message does not include the configuration of the secondary cell of the source base station and / or the secondary base station corresponding to the source base station, the uplink resources of the source base station include resources corresponding to the primary cell, and further include resources corresponding to the secondary cell and / or the secondary base station corresponding to the source base station.

[0272] The use conditions and release timing of the corresponding additional resources under the source base station and the corresponding additional resources under the target base station are described as follows.

[0273] I. In the case where the first target resource includes one or more of the following: a secondary cell under the source base station, a secondary base station corresponding to the source base station, a primary cell under the secondary base station corresponding to the source base station, and a secondary cell under the secondary base station corresponding to the source base station

[0274] Optionally, in this case, the use conditions of the first target resource include any one of the following:

[0275] D11, in the case where the RRC reconfiguration message received carries the configuration of the first target resource, it is determined that the first target resource can be used;

[0276] It should be noted that in this case, as long as the RRC reconfiguration message carries the configuration of the first target resource, the terminal can use the first target resource after receiving the RRC reconfiguration message, provided that the first target resource is not released.

[0277] D12, in the case where the data volume of the target service of the terminal is greater than or equal to a first preset threshold, it is determined that the first target resource can be used;

[0278] It should be noted that in this case, the terminal can use the first target resource after receiving the RRC reconfiguration message, but only in the case where the data volume of the target service of the terminal is greater than or equal to the first preset threshold, provided that the first target resource is not released. That is, in this case, the condition of data volume limitation is added.

[0279] It should be noted that the first preset threshold can be understood as the minimum data volume of the target service transmitted by the terminal that can use the first target resource.

[0280] Optionally, the first preset threshold can be indicated by the source base station or can be agreed by the protocol.

[0281] It should be noted that whether D11 or D12 is used can be agreed by the protocol or indicated by the source base station. For example, if the RRC reconfiguration message sent by the source base station carries threshold indication information, it can be determined that the use condition of the first target resource is D12.

[0282] Optionally, in this case, the terminal releases the first target resource in at least one of the following cases:

[0283] D21. In the DAPS handover process, a first release signaling sent by the source base station is received, and the first release signaling is used to indicate release of at least one secondary cell under the source base station and / or at least one cell under the secondary base station corresponding to the source base station;

[0284] It should be noted that in this case, the release of the first target resource is triggered by the source base station, and the source base station can select to release part of the resources or all the resources. Alternatively, the first release signaling can be a medium access control layer control unit (MAC CE) or a physical layer signaling.

[0285] D22. In the DAPS handover process, if the data amount of the target service of the terminal is less than or equal to a first threshold value, a second release signaling is sent to the source base station, and the second release signaling is used to request release of the first target resource;

[0286] It should be noted that in this case, the release of the first target resource is triggered by the terminal. Alternatively, the second release signaling can be a MAC CE or a physical layer signaling.

[0287] It should be noted that the first threshold value can be understood as the maximum data amount of the target service transmitted by the terminal to the source base station for sending the second release signaling.

[0288] D23. After the DAPS handover is completed, the source cell of the source base station and the first target resource are released.

[0289] It should be noted that in this case, after the DAPS handover is completed, the terminal can actively release the resources corresponding to the source cell of the source base station and the first target resource.

[0290] D24. After the DAPS handover fails, the first target resource is released.

[0291] It should be noted that in this case, if the DAPS handover fails, the terminal actively releases the first target resource.

[0292] II. In the case where the first target resource includes one or more of the following: a secondary cell under the target base station, a secondary base station corresponding to the target base station, a primary cell under the secondary base station corresponding to the target base station, and a secondary cell under the secondary base station corresponding to the target base station

[0293] Alternatively, in this case, the usage condition of the first target resource includes any one of the following:

[0294] D31. After the terminal synchronizes with the target base station, it is determined that the first target resource can be used.

[0295] It should be noted that in this case, as long as the terminal is synchronized with the target base station, the terminal can use the first target resource to transmit the target service without releasing the first target resource.

[0296] D32, in a case where the data volume of the target service of the terminal is greater than or equal to a second preset threshold, it is determined that the first target resource can be used;

[0297] It should be noted that in this case, the terminal can use the first target resource only after the terminal is synchronized with the target base station, and in a case where the data volume of the target service of the terminal is greater than or equal to a first preset threshold, the terminal can use the first target resource without releasing the first target resource.

[0298] It should be noted that the second preset threshold can be understood as the minimum data volume of the target service transmitted by the terminal using the first target resource.

[0299] Optionally, the second preset threshold can be indicated by the source base station or can be agreed by a protocol.

[0300] It should be noted that whether D41 or D42 is used can be agreed by a protocol or indicated by the source base station. For example, if the RRC reconfiguration message sent by the source base station carries threshold indication information, it can be determined that the use condition of the first target resource is D42.

[0301] Optionally, in this case, the terminal releases the first target resource in at least one of the following cases:

[0302] D41, in the DAPS handover process, receiving third release signaling sent by the target base station, the third release signaling being used to indicate releasing at least one secondary cell under the target base station and / or at least one cell under the secondary base station corresponding to the target base station;

[0303] It should be noted that in this case, the release of the first target resource is triggered by the source base station, and the source base station can select to release part of the resources or all the resources. Optionally, the third release signaling can be RRC signaling, MAC CE or physical layer signaling.

[0304] D42, in the DAPS handover process, if the data volume of the target service of the terminal is less than or equal to a second threshold, sending fourth release signaling to the target base station, the fourth release signaling being used to request to release the first target resource;

[0305] It should be noted that in this case, the release of the first target resource is triggered by the terminal. Optionally, the fourth release signaling can be MAC CE or physical layer signaling.

[0306] It should be noted that the second threshold can be understood as the maximum value of the data amount of the transmitted target service that the terminal can send the fourth release signaling to the target base station.

[0307] D43、In the case of DAPS handover failure, releasing the first target resource;

[0308] It should be noted that in this case, if the DAPS handover fails, the terminal actively releases the first target resource.

[0309] Further, the manner in which the source base station acquires one or more of the secondary cell under the target base station, the secondary base station corresponding to the target base station, the primary cell under the secondary base station corresponding to the target base station, and the secondary cell under the secondary base station corresponding to the target base station is:

[0310] sending a handover request message to the target base station, the handover request message carrying an indication that the target service of the terminal uses the CA resource of the target base station in the DAPS process;

[0311] receiving a handover request confirmation message sent by the target base station, the handover request confirmation message carrying the configuration of the first target resource.

[0312] Optionally, in order to facilitate the target base station to accurately configure, optionally, the handover request message further carries indication information of the secondary cell under the source base station, which is used to inform the target base station which secondary cells have been configured by the source base station for the terminal, for example, the indication information can be a cell identifier.

[0313] The specific application of the present application is illustrated as follows.

[0314] Application Case One: Configuring the secondary cell of the source base station that can be used in the DAPS process for the terminal (i.e., the source base station supports CA)

[0315] The main behaviors of the source base station include:

[0316] F11, sending an RRC reconfiguration message indicating terminal handover or primary cell change (i.e., a handover command containing handover configuration) to the terminal, the RRC reconfiguration message containing the configuration of the secondary cell of the source base station that can be used for specified XR service data transmission in the DAPS process.

[0317] Optionally, the RRC reconfiguration message can also include:

[0318] the usage condition of the secondary cell of the source base station, such as the data amount threshold of the specified XR service; and / or

[0319] indicating whether the terminal can send uplink data transmission at the source base station in the DAPS process, and further, pre-configured resources capable of sending the above data transmission can also be allocated to the terminal.

[0320] F12、According to the configuration, downlink transmission is sent to the terminal on the source cell (the primary cell) and the configured secondary cell, and uplink transmission is received;

[0321] F13、Optionally, the source base station can also send a command to release the secondary cell to the terminal during the DAPS handover process;

[0322] F14、After the DAPS process is completed, i.e., after the source base station receives the handover completion message from the target base station, the source cell and the configured secondary cell are released, and transmission between the terminal and the terminal is stopped.

[0323] The main behaviors of the target base station include:

[0324] F21、Receive the handover request initiated by the source base station, and send a handover request response to the source base station;

[0325] F22、Receive the synchronization process (such as the random access process) initiated by the terminal, and complete the handover process of the terminal;

[0326] F23、Send a handover completion message to the source base station to inform the source base station that the DAPS handover process is complete.

[0327] The main behaviors of the terminal include:

[0328] F31、Receive the handover command of the source base station, which includes the DAPS indication and the secondary cell configuration of the source base station;

[0329] F32、During the DAPS handover process, if the conditions are met (such as the data volume of the specified XR service of the terminal being greater than a certain threshold, which can be indicated by the base station or determined by the terminal itself), the secondary cell can be used for data transmission of the specified XR service;

[0330] F33、Optionally, if the data volume of the specified XR service of the terminal is less than a certain threshold before or during the handover, an indication is sent to the source base station to release the secondary cell;

[0331] F34、Optionally, during the DAPS handover process, if an indication is received from the source base station to release the secondary cell resources, the secondary cell resources are released;

[0332] F35、After the terminal completes the DAPS handover, the source cell of the source base station and the secondary cell of the source base station are released.

[0333] Application Case Two: Configure the secondary base station corresponding to the source base station (i.e., the source base station supports DC) that can be used during the DAPS process for the terminal

[0334] The main behaviors of the source base station include:

[0335] H11, sending an RRC reconfiguration message (i.e. a handover command, which contains a handover configuration) to the terminal indicating terminal switching or primary cell change, wherein the RRC reconfiguration message contains the configuration of the secondary base station corresponding to the source base station that can be used to specify the transmission of XR service data in the DAPS process. It should be noted that the configuration of the secondary base station can only contain the primary cell of the secondary base station, or can contain one or more secondary cells of the secondary base station.

[0336] Optionally, the RRC reconfiguration message can also contain:

[0337] The usage condition of the secondary base station corresponding to the source base station, such as the data volume threshold of the specified XR service; and / or

[0338] Indicating whether the terminal can send uplink data transmission on the source base station and / or the secondary base station of the source base station in the DAPS process, and further, the terminal can also be allocated preconfigured resources capable of sending the above data transmission.

[0339] H12, according to the configuration, sending downlink transmission to the terminal on the cell of the source base station and the configured secondary base station, and receiving uplink transmission;

[0340] H13, optionally, the source base station can send a command to the terminal to release the secondary base station or the secondary cell of the secondary base station in the DAPS process;

[0341] H14, after the DAPS process ends, i.e. the source base station receives the handover completion message of the target base station, the following behaviors can be included:

[0342] Releasing the source base station and the configured secondary base station corresponding to the source base station, and stopping transmission between the terminal; and / or

[0343] Notifying the secondary base station to release the resources configured for the terminal.

[0344] The main behaviors of the target base station include:

[0345] H21, receiving the handover request initiated by the source base station, and sending a handover request response to the source base station;

[0346] H22, receiving the synchronization process (such as the random access process) initiated by the terminal, and completing the handover process of the terminal;

[0347] H23, sending a handover completion message to the source base station, notifying the source base station that the DAPS handover process is completed.

[0348] The main behaviors of the terminal include:

[0349] H31, receiving the handover command of the source base station, which includes the DAPS indication and the secondary base station configuration of the source base station;

[0350] H32、In the DAPS handover process, if the conditions are met (such as the data volume of the terminal designated XR service being greater than a certain threshold, which can be indicated by the base station or determined by the terminal itself), the cell resources of the secondary base station can be used for data transmission of the designated XR service;

[0351] H33、Optionally, if the data volume of the terminal designated XR service is less than a certain threshold before or during the handover, an indication is sent to the source base station to release the secondary cell;

[0352] H34、Optionally, during the DAPS handover process, if an indication is received from the source base station to release the cell under the secondary base station, the cell under the secondary base station is released;

[0353] H35、After the terminal completes the DAPS handover (i.e., after receiving the explicit release command from the target base station), the source base station and the secondary base station under the source base station are released.

[0354] Application Case Three: Configuring the secondary cell of the target base station that can be used in the DAPS process for the terminal (i.e., the target base station supports CA)

[0355] The main behaviors of the source base station include:

[0356] 1、The behaviors between the source base station and the target base station include:

[0357] K11、Send a handover request message to the target base station, which contains an indication that the specific XR service of the specific terminal needs to use the CA resources of the target base station in the DAPS process;

[0358] K12、Receive the handover request confirmation message from the target base station, which contains the configuration of the secondary cell of the target base station that can be used by the specific XR service of the specific terminal in the DAPS process;

[0359] It should be noted that the configuration of the secondary cell can also be used after the terminal completes the handover.

[0360] K13、Perform the DAPS handover process of the terminal, and determine that the DAPS handover process is completed after receiving the handover success message sent by the target base station.

[0361] 2、The behaviors between the source base station and the terminal include:

[0362] K21、Send an RRC reconfiguration message (i.e., a handover command containing handover configuration) to the terminal to indicate the terminal to perform handover or primary cell change, which contains the configuration of the secondary cell of the target base station that can be used for data transmission of the designated XR service in the DAPS process.

[0363] Optionally, the RRC reconfiguration message can also contain:

[0364] a usage condition of the secondary cell of the target base station, such as a data volume threshold of the specified XR service; and / or

[0365] indicates whether the terminal can send uplink data transmission in the source base station during the DAPS process, and further, the terminal can be allocated a preconfigured resource capable of sending the above data transmission.

[0366] K22, during the DAPS handover process, sending downlink transmission to the terminal according to the configuration in the source cell, and receiving uplink transmission;

[0367] K23, after the DAPS process is completed, releasing the configuration of the source cell and stopping transmission with the terminal.

[0368] The main behaviors of the target base station include:

[0369] K31, receiving a handover request message sent by the source base station, the handover request message containing an indication that the specific XR service of the specific terminal needs to use CA resources during the DAPS process;

[0370] K32, sending a handover request confirmation message to the source base station, the handover request confirmation message containing the configuration of the secondary cell of the target base station available for the specific XR service of the specific terminal during the DAPS process;

[0371] It should be noted that the configuration of the secondary cell can also be used after the terminal completes the handover;

[0372] K33, receiving a handover process initiated by the terminal, and the secondary cell configured by the target base station takes effect after the terminal accesses the target cell;

[0373] K34, optionally, the target base station can send an indication to the terminal to release the secondary cell.

[0374] The main behaviors of the terminal include:

[0375] K41, receiving a handover command from the source base station, the handover command including a DAPS indication and the configuration of the secondary cell of the target base station;

[0376] K42, after accessing the target base station, if the condition is met (such as the data volume of the terminal's specified XR service being greater than a certain threshold, which can be indicated by the base station or determined by the terminal), the secondary cell can be used for data transmission of the specified XR service;

[0377] K43, optionally, if the data volume of the terminal's specified XR service is less than a certain threshold, sending an indication to the target base station to release the secondary cell;

[0378] K44、Optionally, if an indication is received from the target base station to release the secondary cell, the secondary cell is released;

[0379] K45、After the terminal completes the DAPS handover (i.e., after receiving the explicit release command from the target base station), the source base station is released.

[0380] Application Case Four: The terminal is configured with the secondary base station resource corresponding to the target base station that can be used during the DAPS process (i.e., the target base station supports DC)

[0381] The main behaviors of the source base station include:

[0382] 1. Behaviors between the source base station and the target base station include:

[0383] M11, sending a handover request message to the target base station, the handover request message containing an indication that the specific XR service of the specific terminal needs to use the DC resource of the target base station during the DAPS process;

[0384] M12, receiving a handover request confirmation message from the target base station, the handover request confirmation message containing a configuration of a secondary base station corresponding to the target base station that can be used by the specific XR service of the specific terminal during the DAPS process;

[0385] It should be noted that the configuration of the secondary base station can also be used after the terminal completes the handover.

[0386] M13, performing a DAPS handover process for the terminal, and after receiving a handover success message sent by the target base station, determining that the DAPS handover process is completed.

[0387] 2. Behaviors between the source base station and the terminal include:

[0388] M21, sending an RRC reconfiguration message (i.e., a handover command containing a handover configuration) to the terminal indicating that the terminal switches or changes a primary cell, the RRC reconfiguration message containing a configuration of a secondary base station corresponding to the target base station that can be used for data transmission of the specified XR service during the DAPS process.

[0389] Optionally, the RRC reconfiguration message can also contain:

[0390] a usage condition of the secondary base station corresponding to the target base station, such as a data volume threshold of the specified XR service; and / or

[0391] an indication of whether the terminal can send uplink data transmission at the source base station during the DAPS process, and further, the terminal can be allocated a preconfigured resource capable of sending the above data transmission.

[0392] M22, during the DAPS handover process, sending downlink transmission to the terminal and receiving uplink transmission at the source cell according to the configuration;

[0393] M23, after the DAPS procedure ends, release the source cell and stop transmission with the terminal.

[0394] The main behaviors of the target base station include:

[0395] M31, receiving the handover request message sent by the source base station, the handover request message containing an indication that the specific XR service of the specific terminal needs to use the DC resource of the target base station in the DAPS procedure;

[0396] M32, sending a handover request confirmation message to the source base station, the handover request confirmation message containing the configuration of the secondary base station corresponding to the target base station available for the specific XR service of the specific terminal in the DAPS procedure;

[0397] It should be noted that the configuration of the secondary base station corresponding to the target base station can also be used after the terminal completes the handover;

[0398] M33, receiving the handover procedure initiated by the terminal, the cell (primary cell or primary cell and secondary cell) under the secondary base station configured by the target base station taking effect after the terminal accesses the target cell;

[0399] M34, optionally, the target base station can send an indication to the terminal to release the cell under the secondary base station.

[0400] The main behaviors of the terminal include:

[0401] M41, receiving the handover command of the source base station, the handover command including the DAPS indication and the configuration of the secondary base station corresponding to the target base station;

[0402] M42, after accessing the target base station, if the conditions are met (for example, the data volume of the specified XR service of the terminal is greater than a certain threshold, which can be indicated by the base station or determined by the terminal itself), the cell under the secondary base station can be used for data transmission of the specified XR service;

[0403] M43, optionally, if the data volume of the specified XR service of the terminal is less than a certain threshold, sending an indication to the target base station to release the cell under the secondary base station;

[0404] M44, optionally, if the indication is received to release the cell under the secondary base station by the target base station, the cell under the secondary base station is released;

[0405] M45, after the terminal completes the DAPS handover (i.e., after receiving the explicit release command from the target base station), the source base station is released.

[0406] It should be noted that the embodiments of the present application propose to configure available CA resources and / or DC resources for the specified XR service during DAPS handover, so that the high data volume and low latency requirements of XR service data transmission can still be met during the handover process.

[0407] The technical solutions provided by the embodiments of the present application can be applied to various systems, especially 5G systems. For example, the applicable systems can be global system of mobile communication (GSM) system, code division multiple access (CDMA) system, wideband code division multiple access (WCDMA) general packet radio service (GPRS) system, long term evolution (LTE) system, LTE frequency division duplex (FDD) system, LTE time division duplex (TDD) system, long term evolution advanced (LTE-A) system, universal mobile system (UMTS), worldwide interoperability for microwave access (WiMAX) system, 5G new radio (NR) system, etc. Among these various systems, there are terminal and network devices. The system can also include a core network part, such as an evolved packet system (EPS), a 5G system (5GS), etc.

[0408] The terminal referred to in the embodiments of the present application can refer to a device that provides voice and / or data connectivity to a user, a handheld device having wireless connection function, or other processing devices connected to a wireless modem, etc. In different systems, the name of the terminal can also be different, for example, in the 5G system, the terminal can be called a user equipment (UE). The wireless terminal can communicate with one or more core networks (CN) through a radio access network (RAN). The wireless terminal can be a mobile terminal, such as a mobile phone (or called a "cellular" phone) and a computer with a mobile terminal, for example, it can be a portable, pocket, handheld, built-in computer or vehicle-mounted mobile device, which exchanges language and / or data with the radio access network. For example, personal communication service (PCS) phones, cordless phones, session initiation protocol (SIP) phones, wireless local loop (WLL) stations, personal digital assistants (PDAs), etc. The wireless terminal can also be called a system, a subscriber unit, a subscriber station, a mobile station, a mobile, a remote station, an access point, a remote terminal, an access terminal, a user terminal, a user agent, a user device, which is not limited in the embodiments of the present application.

[0409] The network device according to embodiments of the present application can be a base station, which can include a plurality of cells serving terminals. Depending on the specific application, the base station can also be referred to as an access point, or can be a device in an access network that communicates with wireless terminals through one or more sectors on an air interface, or other names. The network device can be used to exchange received air frames and Internet Protocol (IP) packets, as a router between wireless terminals and the rest of the access network, which can include an Internet Protocol (IP) communication network. The network device can also coordinate the management of the properties of the air interface. For example, the network device according to embodiments of the present application can be a network device (Base Transceiver Station, BTS) in the Global System for Mobile Communications (GSM) or Code Division Multiple Access (CDMA), or a network device (NodeB) in Wide-band Code Division Multiple Access (WCDMA), or an evolved network device (evolutional Node B, eNB or e-NodeB) in a long term evolution (LTE) system, or a 5G base station (gNB) in a next generation system, or a Home evolved Node B (HeNB), a relay node, a femto, a pico, etc., which are not limited in embodiments of the present application. In some network structures, the network device can include a centralized unit (CU) node and a distributed unit (DU) node, and the centralized unit and the distributed unit can also be arranged geographically apart.

[0410] The network device and the terminal can each use one or more antennas for Multi Input Multi Output (MIMO) transmission, which can be Single User MIMO (SU-MIMO) or Multiple User MIMO (MU-MIMO). According to the shape and number of antenna combinations, MIMO transmission can be 2D-MIMO, 3D-MIMO, FD-MIMO or massive-MIMO, or can be diversity transmission or precoding transmission or beamforming transmission, etc.

[0411] Corresponding to the implementation of the terminal side, as Figure 4 shown, the embodiments of the present application provide an information configuration method, applied to a source base station, comprising:

[0412] Step S401, sending a radio resource control (RRC) reconfiguration message indicating terminal switching or primary cell change to the terminal, wherein the RRC reconfiguration message contains configuration of a first target resource for target service transmission;

[0413] The first target resource includes one or more of the following:

[0414] A secondary cell under the source base station;

[0415] A secondary base station corresponding to the source base station;

[0416] A primary cell under the secondary base station corresponding to the source base station;

[0417] A secondary cell under the secondary base station corresponding to the source base station;

[0418] A secondary cell under the target base station;

[0419] A secondary base station corresponding to the target base station;

[0420] A primary cell under the secondary base station corresponding to the target base station;

[0421] A secondary cell under the secondary base station corresponding to the target base station.

[0422] Optionally, the target service is indicated by one or more of the following:

[0423] Service number;

[0424] Session number;

[0425] Data radio bearer (DRB) identifier;

[0426] Quality of service (QoS) flow identifier;

[0427] Service frame type.

[0428] Optionally, the configuration of the first target resource includes at least one of the following:

[0429] Primary cell number of the source base station;

[0430] Base station identifier of the source base station;

[0431] Secondary cell number under the source base station;

[0432] Time-frequency resource configuration of the secondary cell under the source base station;

[0433] Base station identifier of the secondary base station corresponding to the source base station;

[0434] a cell number of a secondary cell under a secondary base station corresponding to the source base station;

[0435] a time-frequency resource configuration of a cell under a secondary base station corresponding to the source base station;

[0436] a primary cell number of the target base station;

[0437] a base station identifier of the target base station;

[0438] a secondary cell number under the target base station;

[0439] a time-frequency resource configuration of a secondary cell under the target base station;

[0440] a base station identifier of a secondary base station corresponding to the target base station;

[0441] a cell number of a secondary base station corresponding to the target base station;

[0442] a time-frequency resource configuration of a cell under a secondary base station corresponding to the target base station.

[0443] Optionally, in a case where the first target resource comprises one or more of a secondary cell under the target base station, a secondary base station corresponding to the target base station, a primary cell under the secondary base station corresponding to the target base station, and a secondary cell under the secondary base station corresponding to the target base station, the manner of acquiring the configuration of the first target resource comprises:

[0444] sending, to the target base station, a handover request message, the handover request message carrying an indication that a target service of the terminal uses carrier aggregation (CA) resources of the target base station in a DAPS process;

[0445] receiving a handover request acknowledgement message sent by the target base station, the handover request acknowledgement message carrying the configuration of the first target resource.

[0446] Optionally, the handover request message further carries indication information of a secondary cell under the source base station.

[0447] Optionally, the RRC reconfiguration message further comprises first indication information, the first indication information being used to indicate whether uplink transmission can be performed by using uplink resources of the source base station.

[0448] The method further comprises:

[0449] receiving target service data sent by the terminal through the uplink resources.

[0450] Optionally, in a case where the first target resource comprises one or more of a secondary cell under the source base station, a secondary base station corresponding to the source base station, a primary cell under the secondary base station corresponding to the source base station, and a secondary cell under the secondary base station corresponding to the source base station, the method further comprises at least one of:

[0451] In the DAPS handover process, first release signaling is sent to the terminal, the first release signaling being used to instruct to release at least one secondary cell under the source base station and / or at least one cell under the secondary base station corresponding to the source base station;

[0452] Second release signaling is received, which is sent by the terminal when the data volume of the target service of the terminal in the DAPS handover process is less than or equal to a first threshold, and the second release signaling is used to request to release the first target resource;

[0453] After the DAPS handover is completed, the source cell of the source base station and the first target resource are released;

[0454] After the DAPS handover fails, the first target resource is released.

[0455] It should be noted that all the descriptions related to the source base station side in the above embodiments are applicable to the embodiments of the information configuration method applied to the source base station side, and the same technical effects can be achieved.

[0456] Corresponding to the implementation of the terminal side and the source base station side, as shown in Figure 5 The embodiments of the present application provide an information configuration method, applied to a target base station, comprising:

[0457] Step S501, receiving a handover request message sent by a source base station, the handover request message carrying an indication that a target service of a terminal uses carrier aggregation (CA) resources of the target base station in a DAPS process;

[0458] Step S502, sending a handover request confirmation message to the source base station, the handover request confirmation message carrying a configuration of a first target resource;

[0459] The first target resource includes one or more of a secondary cell under the target base station, a secondary base station corresponding to the target base station, a primary cell under the secondary base station corresponding to the target base station, and a secondary cell under the secondary base station corresponding to the target base station.

[0460] Optionally, the handover request message also carries indication information of a secondary cell under the source base station.

[0461] Optionally, after the handover request confirmation message is sent to the source base station, at least one of the following is included:

[0462] In the DAPS handover process, third release signaling is sent to the terminal, the third release signaling being used to instruct to release at least one secondary cell under the target base station and / or at least one cell under the secondary base station corresponding to the target base station;

[0463] receive fourth release signaling sent by the terminal, the fourth release signaling being sent in a case where a data amount of a target service of the terminal in the DAPS handover process is less than or equal to a second threshold value, and the fourth release signaling being used to request to release the first target resource;

[0464] after the DAPS handover fails, releasing the first target resource.

[0465] It should be noted that all the descriptions related to the target base station side in the above embodiments are applicable to the embodiments of the information configuration method applied to the target base station side, and the same technical effects can be achieved.

[0466] As shown in Figure 6 the embodiment of the present application provides a service data transmission device 600 applied to a terminal, comprising:

[0467] a first receiving unit 601, configured to receive a radio resource control (RRC) reconfiguration message sent by a source base station and indicating terminal switching or primary cell change, wherein the RRC reconfiguration message contains configuration of a first target resource for target service transmission;

[0468] a transmission unit 602, configured to map target service data to the corresponding first target resource for transmission according to the RRC reconfiguration message;

[0469] wherein the first target resource comprises one or more of the following:

[0470] a secondary cell under the source base station;

[0471] a secondary base station corresponding to the source base station;

[0472] a primary cell under the secondary base station corresponding to the source base station;

[0473] a secondary cell under the secondary base station corresponding to the source base station;

[0474] a secondary cell under the target base station;

[0475] a secondary base station corresponding to the target base station;

[0476] a primary cell under the secondary base station corresponding to the target base station;

[0477] a secondary cell under the secondary base station corresponding to the target base station.

[0478] Optionally, the target service is indicated by one or more of the following:

[0479] service number;

[0480] session number;

[0481] data radio bearer (DRB) identifier;

[0482] quality of service (QoS) flow identity;

[0483] service frame type.

[0484] Optionally, the configuration of the first target resource comprises at least one of:

[0485] a primary cell number of the source base station;

[0486] a base station identity of the source base station;

[0487] a secondary cell number of the source base station;

[0488] a time-frequency resource configuration of the secondary cell of the source base station;

[0489] a base station identity of a secondary base station corresponding to the source base station;

[0490] a cell number of a cell of the secondary base station corresponding to the source base station;

[0491] a time-frequency resource configuration of the cell of the secondary base station corresponding to the source base station;

[0492] a primary cell number of the target base station;

[0493] a base station identity of the target base station;

[0494] a secondary cell number of the target base station;

[0495] a time-frequency resource configuration of the secondary cell of the target base station;

[0496] a base station identity of a secondary base station corresponding to the target base station;

[0497] a cell number of a cell of the secondary base station corresponding to the target base station;

[0498] a time-frequency resource configuration of the cell of the secondary base station corresponding to the target base station.

[0499] Optionally, the RRC reconfiguration message further comprises first indication information, the first indication information being used to indicate whether uplink transmission can be performed by using an uplink resource of the source base station;

[0500] The transmission unit 602 is configured to:

[0501] In a case where the first indication information indicates that the uplink transmission can be performed by using the uplink resource of the source base station, the target service data is transmitted to the source base station by using the uplink resource.

[0502] Optionally, in a case where the first target resource comprises one or more of a secondary cell of the source base station, a secondary base station corresponding to the source base station, a primary cell of the cell of the secondary base station corresponding to the source base station, and a secondary cell of the cell of the secondary base station corresponding to the source base station, the usage condition of the first target resource comprises any one of:

[0503] In a case where the configuration of the first target resource is carried in the received RRC reconfiguration message, it is determined that the first target resource can be used;

[0504] In a case where the data volume of the target service of the terminal is greater than or equal to a first preset threshold, it is determined that the first target resource can be used.

[0505] Optionally, in a case where the first target resource includes one or more of a secondary cell under a target base station, a secondary base station corresponding to the target base station, a primary cell under the secondary base station corresponding to the target base station, and a secondary cell under the secondary base station corresponding to the target base station, the use condition of the first target resource includes any one of the following:

[0506] After the terminal synchronizes with the target base station, it is determined that the first target resource can be used;

[0507] In a case where the data volume of the target service of the terminal is greater than or equal to a second preset threshold, it is determined that the first target resource can be used.

[0508] Optionally, in a case where the first target resource includes one or more of a secondary cell under a source base station, a secondary base station corresponding to the source base station, a primary cell under the secondary base station corresponding to the source base station, and a secondary cell under the secondary base station corresponding to the source base station, after the first receiving unit 601 receives a radio resource control (RRC) reconfiguration message indicating terminal switching or primary cell change sent by the source base station, the method further includes at least one of the following:

[0509] The third receiving unit is configured to receive, in the DAPS handover process, first release signaling sent by the source base station, the first release signaling being used to indicate release of at least one secondary cell under the source base station and / or at least one cell under the secondary base station corresponding to the source base station.

[0510] The third sending unit is configured to, in the DAPS handover process, send, if the data volume of the target service of the terminal is less than or equal to a first threshold, second release signaling to the source base station, the second release signaling being used to request release of the first target resource.

[0511] The first release unit is configured to, after the DAPS handover is completed, release a source cell of the source base station and the first target resource.

[0512] The second release unit is configured to, after the DAPS handover fails, release the first target resource.

[0513] Optionally, in a case where the first target resource comprises one or more of a secondary cell under a target base station, a secondary base station corresponding to the target base station, a primary cell under the secondary base station corresponding to the target base station, and a secondary cell under the secondary base station corresponding to the target base station, after the first receiving unit 601 receives a radio resource control (RRC) reconfiguration message indicating terminal switching or primary cell change sent by the source base station, the method further comprises at least one of the following:

[0514] The fourth receiving unit is configured to receive third release signaling sent by the target base station during the DAPS handover process, the third release signaling being used to indicate release of at least one secondary cell under the target base station and / or at least one cell under the secondary base station corresponding to the target base station.

[0515] The fourth sending unit is configured to send fourth release signaling to the target base station during the DAPS handover process if the data volume of the target service of the terminal is less than or equal to the second threshold, the fourth release signaling being used to request release of the first target resource.

[0516] The third releasing unit is configured to release the first target resource after the DAPS handover fails.

[0517] It should be noted that the device of the embodiment of the present application further comprises a transceiving unit for transceiving data.

[0518] It should be noted that the device embodiment is one-to-one corresponding to the above-mentioned method embodiment, all implementation manners in the above-mentioned method embodiment are applicable to the device embodiment, and the same technical effects can be achieved.

[0519] It should be noted that the division of units in the embodiment of the present application is illustrative, and is merely a logical function division. In actual implementation, another division manner can be used. In addition, each functional unit in each embodiment of the present application can be integrated in one processing unit, or each unit can be physically present separately, or two or more units can be integrated in one unit. The integrated unit can be realized in the form of hardware or in the form of a software functional unit.

[0520] The integrated unit, if implemented in the form of a software function unit and sold or used as an independent product, can be stored in a processor-readable storage medium. Based on such an understanding, the technical solutions of the present application, essentially or in other words, the part of the prior art that contributes to the present application, or the whole or part of the technical solutions can be embodied in the form of a software product. The computer software product is stored in a storage medium, and includes a plurality of instructions for causing a computer device (which can be a personal computer, a server, or a network device, etc.) or a processor to perform all or part of the steps of the methods described in the various embodiments of the present application. The aforementioned storage medium includes: a U disk, a mobile hard disk, a read-only memory (Read-Only Memory, ROM), a random access memory (Random Access Memory, RAM), a magnetic disk or an optical disk, and various media that can store program codes.

[0521] As shown in Figure 7 The present application also provides a terminal, including a processor 700, a transceiver 710, a memory 720, and a program stored in the memory 720 and executable on the processor 700; wherein the transceiver 710 is connected with the processor 700 and the memory 720 through a bus interface, wherein the processor 700 is used to read the program in the memory and execute the following processes:

[0522] Receiving, through the transceiver 710, a radio resource control (RRC) reconfiguration message indicating terminal switching or primary cell change sent by a source base station, wherein the RRC reconfiguration message contains configuration of first target resources for target service transmission;

[0523] According to the RRC reconfiguration message, mapping target service data to corresponding first target resources for transmission;

[0524] The first target resources include one or more of the following:

[0525] A secondary cell under the source base station;

[0526] A secondary base station corresponding to the source base station;

[0527] A primary cell under a secondary base station corresponding to the source base station;

[0528] A secondary cell under a secondary base station corresponding to the source base station;

[0529] A secondary cell under the target base station;

[0530] A secondary base station corresponding to the target base station;

[0531] A primary cell under a secondary base station corresponding to the target base station;

[0532] A secondary cell under a secondary base station corresponding to the target base station.

[0533] The transceiver 710 is configured to receive and transmit data under the control of the processor 700.

[0534] In the above method, the target service is indicated by one or more of the following: Figure 7 The bus architecture can include any number of interconnected buses and bridges, specifically the various circuits of the one or more processors represented by the processor 700 and the memory represented by the memory 720 are linked together. The bus architecture can also link various other circuits such as peripheral devices, voltage stabilizers and power management circuits, which are well known in the art, and therefore, further description thereof will not be given herein. The bus interface provides an interface. The transceiver 710 can be a plurality of elements, i.e., including a transmitter and a receiver, providing a unit for communicating with various other devices on a transmission medium, including a wireless channel, a wired channel, an optical cable, etc. The user interface 730 can also be an interface capable of connecting to the required device, including but not limited to a keypad, a display, a speaker, a microphone, a joystick, etc.

[0535] The processor 700 is responsible for managing the bus architecture and general processing, and the memory 720 can store data used by the processor 700 in performing operations.

[0536] Optionally, the processor 700 can be a CPU (Central Processing Unit), an ASIC (Application Specific Integrated Circuit), an FPGA (Field-Programmable Gate Array) or a CPLD (Complex Programmable Logic Device), and the processor can also adopt a multi-core architecture.

[0537] The processor is configured to execute any of the methods provided by the embodiments of the present application according to the executable instructions obtained by calling the computer program stored in the memory. The processor and the memory can also be physically arranged separately.

[0538] Optionally, the target service is indicated by one or more of the following:

[0539] The service number;

[0540] The session number;

[0541] The data radio bearer DRB identifier;

[0542] The quality of service QoS flow identifier;

[0543] Service frame type

[0544] Optionally, the configuration of the first target resource comprises at least one of:

[0545] A primary cell number of the source base station;

[0546] A base station identifier of the source base station;

[0547] A secondary cell number under the source base station;

[0548] A time-frequency resource configuration of a secondary cell under the source base station;

[0549] A base station identifier of a secondary base station corresponding to the source base station;

[0550] A cell number under the secondary base station corresponding to the source base station;

[0551] A time-frequency resource configuration of a cell under the secondary base station corresponding to the source base station;

[0552] A primary cell number of the target base station;

[0553] A base station identifier of the target base station;

[0554] A secondary cell number under the target base station;

[0555] A time-frequency resource configuration of a secondary cell under the target base station;

[0556] A base station identifier of a secondary base station corresponding to the target base station;

[0557] A cell number under the secondary base station corresponding to the target base station;

[0558] A time-frequency resource configuration of a cell under the secondary base station corresponding to the target base station.

[0559] Optionally, the RRC reconfiguration message further comprises: first indication information, the first indication information being used to indicate whether uplink transmission can be performed by using an uplink resource of the source base station; and the processor is configured to read the computer program in the memory and perform the following operations:

[0560] In a case where the first indication information indicates that the uplink transmission can be performed by using the uplink resource of the source base station, the target service data is sent to the source base station through the uplink resource.

[0561] Optionally, in a case where the first target resource comprises one or more of a secondary cell under the source base station, a secondary base station corresponding to the source base station, a primary cell under the secondary base station corresponding to the source base station, and a secondary cell under the secondary base station corresponding to the source base station, the usage condition of the first target resource comprises any one of:

[0562] In a case that the configuration of the first target resource is carried in the received RRC reconfiguration message, it is determined that the first target resource can be used;

[0563] In a case that a data volume of a target service of the terminal is greater than or equal to a first preset threshold, it is determined that the first target resource can be used.

[0564] Optionally, in a case that the first target resource comprises one or more of a secondary cell under a target base station, a secondary base station corresponding to the target base station, a primary cell under the secondary base station corresponding to the target base station, and a secondary cell under the secondary base station corresponding to the target base station, the usage condition of the first target resource comprises any one of the following:

[0565] After the terminal is synchronized with the target base station, it is determined that the first target resource can be used.

[0566] In a case that a data volume of a target service of the terminal is greater than or equal to a second preset threshold, it is determined that the first target resource can be used.

[0567] Optionally, in a case that the first target resource comprises one or more of a secondary cell under a source base station, a secondary base station corresponding to the source base station, a primary cell under the secondary base station corresponding to the source base station, and a secondary cell under the secondary base station corresponding to the source base station, the processor is further configured to read the computer program in the memory to perform at least one of the following operations:

[0568] In the DAPS handover process, the transceiver receives first release signaling sent by the source base station, and the first release signaling is used to indicate release of at least one secondary cell under the source base station and / or at least one cell under the secondary base station corresponding to the source base station.

[0569] In the DAPS handover process, if a data volume of a target service of the terminal is less than or equal to a first threshold, the transceiver sends second release signaling to the source base station, and the second release signaling is used to request release of the first target resource.

[0570] After the DAPS handover is completed, the source cell of the source base station and the first target resource are released.

[0571] After the DAPS handover fails, the first target resource is released.

[0572] Optionally, in a case that the first target resource comprises one or more of a secondary cell under a target base station, a secondary base station corresponding to the target base station, a primary cell under the secondary base station corresponding to the target base station, and a secondary cell under the secondary base station corresponding to the target base station, the processor is further configured to read the computer program in the memory to perform at least one of the following operations:

[0573] In the DAPS handover process, third release signaling sent by the target base station is received through the transceiver, and the third release signaling is used to indicate release of at least one secondary cell under the target base station and / or at least one cell under a secondary base station corresponding to the target base station.

[0574] In the DAPS handover process, if the data volume of the target service of the terminal is less than or equal to a second threshold value, fourth release signaling is sent to the target base station through the transceiver, and the fourth release signaling is used to request release of the first target resource.

[0575] After the DAPS handover fails, the first target resource is released.

[0576] It should be noted that the above terminal provided by the embodiments of the present application can realize all the method steps achieved by the above method embodiments, and achieve the same technical effects. Therefore, the same parts and beneficial effects of the method embodiments will not be described in detail.

[0577] The embodiments of the present application also provide a computer readable storage medium having a computer program stored thereon, wherein the computer program is executed by a processor to implement the steps of the service data transmission method applied to a terminal. The processor readable storage medium can be any available medium or data storage device accessible by the processor, including but not limited to magnetic storage (such as floppy disks, hard disks, magnetic tapes, magneto-optical disks (MO), etc.), optical storage (such as CDs, DVDs, BDs, HVDs, etc.), and semiconductor storage (such as ROM, EPROM, EEPROM, non-volatile memory (NAND FLASH), solid state disk (SSD), etc.).

[0578] As shown in Figure 8 The embodiments of the present application provide an information configuration device 800 applied to a source base station, which comprises:

[0579] A first sending unit 801 is configured to send a radio resource control (RRC) reconfiguration message indicating terminal switching or primary cell change to a terminal, and the RRC reconfiguration message contains configuration of a first target resource for target service transmission.

[0580] The first target resource includes one or more of the following:

[0581] A secondary cell under the source base station;

[0582] A secondary base station corresponding to the source base station;

[0583] A primary cell under the secondary base station corresponding to the source base station;

[0584] A secondary cell under the secondary base station corresponding to the source base station;

[0585] A secondary cell under the target base station;

[0586] A secondary base station corresponding to the target base station;

[0587] A primary cell under the secondary base station corresponding to the target base station;

[0588] A secondary cell under the secondary base station corresponding to the target base station.

[0589] Optionally, the target service is indicated by one or more of the following:

[0590] A service number;

[0591] A session number;

[0592] A data radio bearer (DRB) identity;

[0593] A quality of service (QoS) flow identity;

[0594] A service frame type.

[0595] Optionally, the configuration of the first target resource comprises at least one of the following:

[0596] A primary cell number of the source base station;

[0597] A base station identity of the source base station;

[0598] A secondary cell number under the source base station;

[0599] A time-frequency resource configuration of the secondary cell under the source base station;

[0600] A base station identity of a secondary base station corresponding to the source base station;

[0601] A cell number under the secondary base station corresponding to the source base station;

[0602] A time-frequency resource configuration of the cell under the secondary base station corresponding to the source base station;

[0603] A primary cell number of the target base station;

[0604] A base station identity of the target base station;

[0605] A secondary cell number under the target base station;

[0606] A time-frequency resource configuration of the secondary cell under the target base station;

[0607] A base station identity of a secondary base station corresponding to the target base station;

[0608] A cell number under the secondary base station corresponding to the target base station;

[0609] A time-frequency resource configuration of the cell under the secondary base station corresponding to the target base station.

[0610] Optionally, in a case where the first target resource comprises one or more of a secondary cell under a target base station, a secondary base station corresponding to the target base station, a primary cell under the secondary base station corresponding to the target base station, and a secondary cell under the secondary base station corresponding to the target base station, the manner of acquiring the configuration of the first target resource comprises:

[0611] sending, to the target base station, a handover request message, the handover request message carrying an indication that a target service of the terminal uses carrier aggregation (CA) resources of the target base station in the DAPS process;

[0612] receiving a handover request acknowledgement message sent by the target base station, the handover request acknowledgement message carrying the configuration of the first target resource.

[0613] Optionally, the handover request message further carries indication information of a secondary cell under the source base station.

[0614] Optionally, the RRC reconfiguration message further comprises first indication information, the first indication information being used to indicate whether uplink transmission can be performed by using uplink resources of the source base station.

[0615] The apparatus further comprises:

[0616] a fifth receiving unit, configured to receive target service data sent by the terminal through the uplink resources.

[0617] Optionally, in a case where the first target resource comprises one or more of a secondary cell under the source base station, a secondary base station corresponding to the source base station, a primary cell under the secondary base station corresponding to the source base station, and a secondary cell under the secondary base station corresponding to the source base station, the apparatus further comprises at least one of the following:

[0618] a fifth sending unit, configured to send, to the terminal, first release signaling in the DAPS handover process, the first release signaling being used to indicate release of at least one secondary cell under the source base station and / or at least one cell under the secondary base station corresponding to the source base station.

[0619] a sixth receiving unit, configured to receive second release signaling sent by the terminal, the second release signaling being sent by the terminal in a case where a data volume of the target service of the terminal in the DAPS handover process is less than or equal to a first threshold value, the second release signaling being used to request release of the first target resource.

[0620] a fourth releasing unit, configured to release, after the DAPS handover is completed, a source cell of the source base station and the first target resource.

[0621] a fifth releasing unit, configured to release, after the DAPS handover fails, the first target resource.

[0622] It should be noted that the device embodiment is one-to-one corresponding to the above-mentioned method embodiment, all implementation manners in the above-mentioned method embodiment are applicable to the device embodiment, and the same technical effects can be achieved.

[0623] As shown in Figure 9 The embodiment of the application also provides a base station, which is a source base station, comprising a processor 900, a transceiver 910, a memory 920, and a program stored in the memory 920 and executable on the processor 900; the transceiver 910 is connected with the processor 900 and the memory 920 through a bus interface, wherein the processor 900 is configured to read the program in the memory and perform the following processes:

[0624] sending, by the transceiver 910, a radio resource control (RRC) reconfiguration message indicating terminal switching or primary cell change to the terminal, wherein the RRC reconfiguration message comprises configuration of a first target resource for target service transmission;

[0625] The first target resource comprises one or more of the following:

[0626] a secondary cell under the source base station;

[0627] a secondary base station corresponding to the source base station;

[0628] a primary cell under a secondary base station corresponding to the source base station;

[0629] a secondary cell under a secondary base station corresponding to the source base station;

[0630] a secondary cell under the target base station;

[0631] a secondary base station corresponding to the target base station;

[0632] a primary cell under a secondary base station corresponding to the target base station;

[0633] a secondary cell under a secondary base station corresponding to the target base station.

[0634] The transceiver 910 is configured to receive and send data under the control of the processor 900.

[0635] The transceiver 910 is configured to receive and send data under the control of the processor 900. Figure 9In the embodiment, the bus architecture may include any number of interconnected buses and bridges, specifically linking together various circuits of one or more processors represented by processor 900 and memory represented by memory 920. The bus architecture may also link together various other circuits such as peripheral devices, voltage regulators, and power management circuits, which are all well known in the art and, therefore, will not be described further herein. The bus interface provides an interface. The transceiver 910 may be a plurality of components, i.e., a transmitter and a receiver, providing a unit for communicating with various other devices on a transmission medium, such as a wireless channel, a wired channel, an optical cable, and the like. The processor 900 is responsible for managing the bus architecture and general processing, and the memory 900 may store data used by the processor 900 when performing operations.

[0636] The processor 900 may be a central processing unit (CPU), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA), or a complex programmable logic device (CPLD). The processor may also adopt a multi-core architecture.

[0637] Optionally, the target service is indicated by one or more of the following:

[0638] Business number;

[0639] Session ID;

[0640] Data radio bearer DRB identifier;

[0641] Quality of Service QoS flow identification;

[0642] Service frame type.

[0643] Optionally, the configuration of the first target resource includes at least one of the following:

[0644] Primary cell number of the source base station;

[0645] The base station identifier of the source base station;

[0646] The secondary cell number of the source base station;

[0647] Time and frequency resource configuration of the secondary cell under the source base station;

[0648] The base station identifier of the secondary base station corresponding to the source base station;

[0649] The cell number of the secondary base station corresponding to the source base station;

[0650] A time-frequency resource configuration of a cell under a secondary base station corresponding to the source base station;

[0651] A primary cell number of the target base station;

[0652] A base station identifier of the target base station;

[0653] A secondary cell number under the target base station;

[0654] A time-frequency resource configuration of a secondary cell under the target base station;

[0655] A base station identifier of a secondary base station corresponding to the target base station;

[0656] A cell number under the secondary base station corresponding to the target base station;

[0657] A time-frequency resource configuration of a cell under the secondary base station corresponding to the target base station.

[0658] Optionally, in a case where the first target resource includes one or more of a secondary cell under the target base station, a secondary base station corresponding to the target base station, a primary cell under the secondary base station corresponding to the target base station, and a secondary cell under the secondary base station corresponding to the target base station, the processor is configured to read the computer program in the memory and perform the following operations:

[0659] sending, by the transceiver, a handover request message to the target base station, the handover request message carrying an indication that target service of the terminal uses carrier aggregation (CA) resources of the target base station in a DAPS process;

[0660] receiving, by the transceiver, a handover request acknowledgement message sent by the target base station, the handover request acknowledgement message carrying a configuration of the first target resource.

[0661] Optionally, the handover request message further carries indication information of a secondary cell under the source base station.

[0662] Optionally, the RRC reconfiguration message further includes first indication information, the first indication information being used to indicate whether uplink transmission can be performed using uplink resources of the source base station.

[0663] The processor is configured to read the computer program in the memory and perform the following operations:

[0664] receiving, by the transceiver, target service data sent by the terminal through the uplink resources.

[0665] Optionally, in a case where the first target resource includes one or more of a secondary cell under the source base station, a secondary base station corresponding to the source base station, a primary cell under the secondary base station corresponding to the source base station, and a secondary cell under the secondary base station corresponding to the source base station, the processor is configured to read the computer program in the memory and perform at least one of the following operations:

[0666] During the DAPS switching process, a first release signaling is sent to the terminal through the transceiver, where the first release signaling is used to instruct the release of at least one secondary cell under the source base station and / or at least one cell under the secondary base station corresponding to the source base station;

[0667] receiving, by a transceiver, a second release signaling sent by a terminal, where the second release signaling is sent by the terminal when a data volume of a target service during a DAPS switching process is less than or equal to a first threshold, and the second release signaling is used to request the release of the first target resource;

[0668] After the DAPS handover is completed, releasing the source cell of the source base station and the first target resource;

[0669] After the DAPS switching fails, the first target resource is released.

[0670] It should be noted here that the above-mentioned source base station provided in the embodiment of the present application can implement all the method steps implemented in the above-mentioned method embodiment, and can achieve the same technical effect. The parts and beneficial effects of this embodiment that are the same as the method embodiment will not be described in detail here.

[0671] The embodiment of the present application also provides a computer-readable storage medium having a computer program stored thereon, wherein the computer program, when executed by a processor, implements the steps of the information configuration method applied to the source base station. The processor-readable storage medium can be any available medium or data storage device that the processor can access, including but not limited to magnetic storage (such as a floppy disk, hard disk, magnetic tape, magneto-optical disk (MO), etc.), optical storage (such as CD, DVD, BD, HVD, etc.), and semiconductor storage (such as ROM, EPROM, EEPROM, non-volatile memory (NAND FLASH), solid-state drive (SSD)), etc.

[0672] like Figure 10 As shown, an embodiment of the present application provides an information configuration device 1000, which is applied to a target base station, including:

[0673] The second receiving unit 1001 is configured to receive a handover request message sent by a source base station, where the handover request message carries an indication that a target service of the terminal uses carrier aggregation (CA) resources of the target base station during a DAPS process;

[0674] The second sending unit 1002 is configured to send a handover request confirmation message to the source base station, where the handover request confirmation message carries the configuration of the first target resource;

[0675] The first target resource includes one or more of a secondary cell under the target base station, a secondary base station corresponding to the target base station, a primary cell under the secondary base station corresponding to the target base station, and a secondary cell under the secondary base station corresponding to the target base station.

[0676] Optionally, the handover request message further carries indication information of a secondary cell under the source base station.

[0677] Optionally, after the second sending unit 1002 sends the handover request confirmation message to the source base station, at least one of the following is further included:

[0678] The sixth sending unit is configured to send third release signaling to the terminal in the DAPS handover process, where the third release signaling is used to instruct to release at least one secondary cell under the target base station and / or at least one cell under the secondary base station corresponding to the target base station.

[0679] The seventh receiving unit is configured to receive fourth release signaling sent by the terminal, where the fourth release signaling is sent by the terminal in a case where a data volume of a target service of the terminal in the DAPS handover process is less than or equal to a second threshold value, and the fourth release signaling is used to request to release the first target resource.

[0680] The release unit is configured to release the first target resource after the DAPS handover fails.

[0681] It should be noted that the device embodiment is one-to-one corresponding to the above-mentioned method embodiment, and all implementation manners in the above-mentioned method embodiment are applicable to the device embodiment, and the same technical effects can be achieved.

[0682] Embodiments of the present application also provide a base station, the base station is a target base station, it should be noted that the structure of the target base station can be referred to Figure 9 , which will not be repeated here.

[0683] The processor is configured to read a computer program in the memory and perform the following operations:

[0684] The transceiver receives a handover request message sent by a source base station, where the handover request message carries an indication that a target service of a terminal uses carrier aggregation (CA) resources of a target base station in a DAPS process;

[0685] The transceiver sends a handover request confirmation message to the source base station, where the handover request confirmation message carries a configuration of a first target resource.

[0686] The first target resource includes one or more of a secondary cell under the target base station, a secondary base station corresponding to the target base station, a primary cell under the secondary base station corresponding to the target base station, and a secondary cell under the secondary base station corresponding to the target base station.

[0687] Optionally, the handover request message further carries indication information of a secondary cell under the source base station.

[0688] Optionally, the processor, configured to read the computer program in the memory, further performs at least one of the following operations:

[0689] In the DAPS handover process, the third release signaling is sent to the terminal through the transceiver, and the third release signaling is used to instruct to release at least one secondary cell under the target base station and / or at least one cell under the secondary base station corresponding to the target base station;

[0690] The fourth release signaling is received by the transceiver, and the fourth release signaling is sent by the terminal in the case that the data amount of the target service in the DAPS handover process is less than or equal to the second threshold value, and the fourth release signaling is used to request to release the first target resource;

[0691] After the DAPS handover fails, the first target resource is released.

[0692] It should be noted that the above target base station provided by the embodiments of the present application can realize all the method steps realized by the above method embodiments, and can achieve the same technical effects, and the same parts and beneficial effects of the method embodiments in the embodiments will not be described in detail.

[0693] The embodiments of the present application also provide a computer readable storage medium having a computer program stored thereon, wherein the computer program is executed by a processor to implement the steps of the information configuration method applied to a target base station. The processor readable storage medium can be any available medium or data storage device accessible by a processor, including but not limited to a magnetic memory (such as a floppy disk, a hard disk, a magnetic tape, a magneto-optical disk (MO), etc.), an optical memory (such as a CD, a DVD, a BD, a HVD, etc.), and a semiconductor memory (such as a ROM, an EPROM, an EEPROM, a non-volatile memory (NAND FLASH), a solid state disk (SSD), etc.).

[0694] Those skilled in the art should understand that the embodiments of the present application can be provided as a method, a system, or a computer program product. Therefore, the present application can take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware aspects. Moreover, the present application can take the form of a computer program product implemented on one or more computer usable storage media (including but not limited to magnetic disk storage and optical storage, etc.) containing computer usable program code.

[0695] The computer executable instructions can also be loaded onto a computer or other programmable data processing apparatus to cause a series of operations steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart Figure 1 one or more flows and / or blocks. Figure 1 one or more flows and / or blocks.

[0696] The computer executable instructions can also be loaded onto a computer or other programmable data processing apparatus to cause a series of operations steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart Figure 1 one or more flows and / or blocks. Figure 1 one or more flows and / or blocks.

[0697] The computer executable instructions can also be loaded onto a computer or other programmable data processing apparatus to cause a series of operations steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart Figure 1 one or more flows and / or blocks. Figure 1 one or more flows and / or blocks.

[0698] Obviously, numerous modifications and variations of the present application are possible in light of the above teachings. It is therefore to be understood that within the scope of the appended claims and their equivalents, the application can be practiced otherwise than as specifically described.

Claims

1. A service data transmission method applied to a terminal, characterized in that, The method comprises: receiving a radio resource control (RRC) reconfiguration message sent by a source base station, the RRC reconfiguration message indicating terminal switching or a primary cell change, and the RRC reconfiguration message containing configuration of first target resources for target service transmission; mapping target service data to the corresponding first target resources for transmission according to the RRC reconfiguration message; wherein the first target resources include one or more of the following: a secondary cell under the source base station; a secondary base station corresponding to the source base station; a primary cell under a secondary base station corresponding to the source base station; a secondary cell under the secondary base station corresponding to the source base station; a secondary cell under a target base station; a secondary base station corresponding to the target base station; a primary cell under the secondary base station corresponding to the target base station; a secondary cell under the secondary base station corresponding to the target base station; wherein the RRC reconfiguration message further includes first indication information indicating whether uplink transmission can be performed using uplink resources of the source base station; the mapping of the target service data to the corresponding first target resources for transmission according to the RRC reconfiguration message includes: in the case where the first indication information indicates that uplink transmission can be performed using the uplink resources of the source base station, sending the target service data to the source base station through the uplink resources.

2. The method of claim 1, wherein, the target service is indicated by one or more of the following: a service number; a session number; a data radio bearer (DRB) identifier; a quality of service (QoS) flow identifier; a service frame type.

3. The method of claim 1, wherein, the configuration of the first target resources includes at least one of the following: a primary cell number of the source base station; a base station identifier of the source base station; a secondary cell number under the source base station; time-frequency resource configuration of the secondary cell under the source base station; a base station identifier of the secondary base station corresponding to the source base station; a cell number under the secondary base station corresponding to the source base station; time-frequency resource configuration of the cell under the secondary base station corresponding to the source base station; a primary cell number of the target base station; a base station identifier of the target base station; a secondary cell number under the target base station; time-frequency resource configuration of the secondary cell under the target base station; a base station identifier of the secondary base station corresponding to the target base station; a cell number under the secondary base station corresponding to the target base station; time-frequency resource configuration of the cell under the secondary base station corresponding to the target base station.

4. The method of claim 1, wherein, in the case where the first target resources include one or more of the following: a secondary cell under the source base station, a secondary base station corresponding to the source base station, a primary cell under the secondary base station corresponding to the source base station, and a secondary cell under the secondary base station corresponding to the source base station, the use condition of the first target resources includes any one of the following: in the case where the configuration of the first target resources is carried in the received RRC reconfiguration message, it is determined that the first target resources can be used; in the case where the data volume of the target service of the terminal is greater than or equal to a first preset threshold, it is determined that the first target resources can be used.

5. The method of claim 1, wherein, in the case where the first target resources include one or more of the following: a secondary cell under the target base station, a secondary base station corresponding to the target base station, a primary cell under the secondary base station corresponding to the target base station, and a secondary cell under the secondary base station corresponding to the target base station, the use condition of the first target resources includes any one of the following: after the terminal synchronizes with the target base station, it is determined that the first target resources can be used; In a case where the data volume of the target service of the terminal is greater than or equal to a second preset threshold, it is determined that the first target resource can be used.

6. The method of claim 1, wherein, In a case where the first target resource includes one or more of a secondary cell under a source base station, a secondary base station corresponding to the source base station, a primary cell under the secondary base station corresponding to the source base station, and a secondary cell under the secondary base station corresponding to the source base station, after receiving the radio resource control (RRC) reconfiguration message sent by the source base station and indicating terminal switching or primary cell change, at least one of the following is further included: In a DAPS handover process, first release signaling sent by the source base station is received, and the first release signaling is used to indicate release of at least one secondary cell under the source base station and / or at least one cell under the secondary base station corresponding to the source base station. In a DAPS handover process, if the data volume of the target service of the terminal is less than or equal to a first threshold, second release signaling is sent to the source base station, and the second release signaling is used to request release of the first target resource. After the DAPS handover is completed, the source cell of the source base station and the first target resource are released. After the DAPS handover fails, the first target resource is released.

7. The method of claim 1, wherein, In a case where the first target resource includes one or more of a secondary cell under a target base station, a secondary base station corresponding to the target base station, a primary cell under the secondary base station corresponding to the target base station, and a secondary cell under the secondary base station corresponding to the target base station, after receiving the radio resource control (RRC) reconfiguration message sent by the source base station and indicating terminal switching or primary cell change, at least one of the following is further included: In a DAPS handover process, third release signaling sent by the target base station is received, and the third release signaling is used to indicate release of at least one secondary cell under the target base station and / or at least one cell under the secondary base station corresponding to the target base station. In a DAPS handover process, if the data volume of the target service of the terminal is less than or equal to a second threshold, fourth release signaling is sent to the target base station, and the fourth release signaling is used to request release of the first target resource. After the DAPS handover fails, the first target resource is released.

8. An information configuration method, applied to a source base station, characterized in that: Comprises: A radio resource control (RRC) reconfiguration message indicating terminal switching or primary cell change is sent to the terminal, and the RRC reconfiguration message includes configuration of a first target resource for target service transmission. The first target resource includes one or more of the following: A secondary cell under a source base station; A secondary base station corresponding to the source base station; A primary cell under the secondary base station corresponding to the source base station; A secondary cell under the secondary base station corresponding to the source base station; A secondary cell under a target base station; A secondary base station corresponding to the target base station; A primary cell under the secondary base station corresponding to the target base station; A secondary cell under the secondary base station corresponding to the target base station; The RRC reconfiguration message further includes first indication information, and the first indication information is used to indicate whether uplink transmission can be performed using uplink resources of the source base station.

9. The method of claim 8, wherein, The target service is indicated by one or more of the following: Service number; Session number; Data radio bearer (DRB) identifier; Quality of service (QoS) flow identifier; Service frame type.

10. The method of claim 8, wherein, The configuration of the first target resource includes at least one of the following: Primary cell number of the source base station; a base station identifier of the source base station; a secondary cell number under the source base station; time-frequency resource configuration of the secondary cell under the source base station; a base station identifier of a secondary base station corresponding to the source base station; a cell number under the secondary base station corresponding to the source base station; time-frequency resource configuration of the cell under the secondary base station corresponding to the source base station; a primary cell number of the target base station; a base station identifier of the target base station; a secondary cell number under the target base station; time-frequency resource configuration of the secondary cell under the target base station; a base station identifier of a secondary base station corresponding to the target base station; a cell number under the secondary base station corresponding to the target base station; time-frequency resource configuration of the cell under the secondary base station corresponding to the target base station.

11. The method of claim 8, wherein, In a case where the first target resource comprises one or more of a secondary cell under the target base station, a secondary base station corresponding to the target base station, a primary cell under the secondary base station corresponding to the target base station, and a secondary cell under the secondary base station corresponding to the target base station, the method further comprises: sending, to the target base station, a handover request message, the handover request message carrying an indication that a target service of the terminal uses carrier aggregation (CA) resources of the target base station in a DAPS process; receiving a handover request acknowledgement message sent by the target base station, the handover request acknowledgement message carrying a configuration of the first target resource.

12. The method of claim 11, wherein, The handover request message further carries indication information of a secondary cell under the source base station.

13. The method of claim 8, wherein, The method further comprises: receiving target service data sent by the terminal through the uplink resource.

14. The method of claim 8, wherein, In a case where the first target resource comprises one or more of a secondary cell under the source base station, a secondary base station corresponding to the source base station, a primary cell under the secondary base station corresponding to the source base station, and a secondary cell under the secondary base station corresponding to the source base station, the method further comprises at least one of the following: during the DAPS handover process, sending first release signaling to the terminal, the first release signaling being used to indicate release of at least one secondary cell under the source base station and / or at least one cell under the secondary base station corresponding to the source base station; receiving second release signaling sent by the terminal, the second release signaling being sent in a case where a data amount of the target service of the terminal in the DAPS handover process is less than or equal to a first threshold value, the second release signaling being used to request release of the first target resource; after the DAPS handover is completed, releasing a source cell of the source base station and the first target resource; after the DAPS handover fails, releasing the first target resource.

15. A terminal, characterized by comprise a memory, a transceiver, and a processor: the memory is configured to store a computer program; the transceiver is configured to transceive data under control of the processor; and the processor is configured to read the computer program in the memory and perform the following operations: receiving, by the transceiver, a radio resource control (RRC) reconfiguration message sent by a source base station and indicating handover or primary cell change of the terminal, the RRC reconfiguration message comprising a configuration of a first target resource for transmission of a target service; mapping, according to the RRC reconfiguration message, target service data to the corresponding first target resource for transmission; wherein the first target resource comprises one or more of the following: a secondary cell under the source base station; a secondary base station corresponding to the source base station; a primary cell under the secondary base station corresponding to the source base station; a secondary cell under the secondary base station corresponding to the source base station. A secondary cell under the target base station; A secondary base station corresponding to the target base station; A primary cell under the secondary base station corresponding to the target base station; A secondary cell under the secondary base station corresponding to the target base station; The RRC reconfiguration message further includes first indication information, the first indication information being used to indicate whether uplink transmission can be performed by using an uplink resource of the source base station; the processor is used to read the computer program in the memory and perform the following operations: In a case where the first indication information indicates that uplink transmission can be performed by using the uplink resource of the source base station, the target service data is sent to the source base station through the uplink resource.

16. The terminal according to claim 15, characterized by In a case where the first target resource includes one or more of a secondary cell under the source base station, a secondary base station corresponding to the source base station, a primary cell under the secondary base station corresponding to the source base station, and a secondary cell under the secondary base station corresponding to the source base station, the use condition of the first target resource includes any one of the following: In a case where the configuration of the first target resource is carried in the received RRC reconfiguration message, it is determined that the first target resource can be used; In a case where the data volume of the target service of the terminal is greater than or equal to a first preset threshold, it is determined that the first target resource can be used.

17. The terminal according to claim 15, characterized by In a case where the first target resource includes one or more of a secondary cell under the target base station, a secondary base station corresponding to the target base station, a primary cell under the secondary base station corresponding to the target base station, and a secondary cell under the secondary base station corresponding to the target base station, the use condition of the first target resource includes any one of the following: After the terminal is synchronized with the target base station, it is determined that the first target resource can be used; In a case where the data volume of the target service of the terminal is greater than or equal to a second preset threshold, it is determined that the first target resource can be used.

18. The terminal according to claim 15, characterized by In a case where the first target resource includes one or more of a secondary cell under the source base station, a secondary base station corresponding to the source base station, a primary cell under the secondary base station corresponding to the source base station, and a secondary cell under the secondary base station corresponding to the source base station, the processor used to read the computer program in the memory further performs at least one of the following operations: In a DAPS handover process, the first release signaling sent by the source base station is received through the transceiver, the first release signaling being used to indicate that at least one secondary cell under the source base station and / or at least one cell under the secondary base station corresponding to the source base station are released; In a DAPS handover process, if the data volume of the target service of the terminal is less than or equal to a first threshold, the second release signaling is sent to the source base station through the transceiver, the second release signaling being used to request to release the first target resource; After the DAPS handover is completed, the source cell of the source base station and the first target resource are released; After the DAPS handover fails, the first target resource is released.

19. The terminal according to claim 15, characterized by In a case where the first target resource includes one or more of a secondary cell under the target base station, a secondary base station corresponding to the target base station, a primary cell under the secondary base station corresponding to the target base station, and a secondary cell under the secondary base station corresponding to the target base station, the processor used to read the computer program in the memory further performs at least one of the following operations: In the DAPS handover process, third release signaling sent by the target base station is received through the transceiver, and the third release signaling is used to indicate release of at least one secondary cell under the target base station and / or at least one cell under the secondary base station corresponding to the target base station; In the DAPS handover process, if the data volume of the target service of the terminal is less than or equal to a second threshold, fourth release signaling is sent to the target base station through the transceiver, and the fourth release signaling is used to request release of the first target resource; After the DAPS handover fails, the first target resource is released.

20. A base station, the base station being a source base station, characterized by The memory, the transceiver, and the processor are included. The memory is used to store a computer program; the transceiver is used to transceive data under the control of the processor; and the processor is used to read the computer program in the memory and perform the following operations: A radio resource control (RRC) reconfiguration message indicating terminal switching or primary cell change is sent to the terminal through the transceiver, and the RRC reconfiguration message contains configuration of a first target resource for target service transmission; The first target resource includes one or more of the following: A secondary cell under the source base station; A secondary base station corresponding to the source base station; A primary cell under the secondary base station corresponding to the source base station; A secondary cell under the secondary base station corresponding to the source base station; A secondary cell under the target base station; A secondary base station corresponding to the target base station; A primary cell under the secondary base station corresponding to the target base station; A secondary cell under the secondary base station corresponding to the target base station; The RRC reconfiguration message further includes first indication information, which is used to indicate whether uplink transmission can be performed using uplink resources of the source base station.

21. The base station of claim 20, wherein, In the case where the first target resource includes one or more of the following: a secondary cell under the target base station, a secondary base station corresponding to the target base station, a primary cell under the secondary base station corresponding to the target base station, and a secondary cell under the secondary base station corresponding to the target base station, the processor is used to read the computer program in the memory and perform the following operations: A handover request message is sent to the target base station through the transceiver, and the handover request message carries an indication that the target service of the terminal uses carrier aggregation (CA) resources of the target base station in the DAPS process; A handover request confirmation message sent by the target base station is received through the transceiver, and the handover request confirmation message carries configuration of the first target resource.

22. A service data transmission apparatus applied to a terminal, characterized by comprising: The first receiving unit is configured to receive a radio resource control (RRC) reconfiguration message sent by a source base station, the RRC reconfiguration message containing configuration of a first target resource for target service transmission; The transmission unit is configured to map target service data to corresponding first target resources for transmission according to the RRC reconfiguration message; The first target resource includes one or more of the following: A secondary cell under the source base station; A secondary base station corresponding to the source base station; A primary cell under the secondary base station corresponding to the source base station; A secondary cell under the secondary base station corresponding to the source base station; A secondary cell under the target base station; A secondary base station corresponding to the target base station; A primary cell under the secondary base station corresponding to the target base station; A secondary cell under the secondary base station corresponding to the target base station; ​ The RRC reconfiguration message further comprises first indication information, the first indication information being used for indicating whether uplink transmission can be performed by using uplink resources of the source base station. The transmission unit is configured to: In a case where the first indication information indicates that uplink transmission can be performed by using uplink resources of the source base station, the target service data is transmitted to the source base station by using the uplink resources.

23. An information configuring apparatus applied to a source base station, characterized by comprising: The method comprises: A first sending unit is configured to send, to a terminal, a radio resource control (RRC) reconfiguration message indicating terminal switching or primary cell change, the RRC reconfiguration message comprising configuration of first target resources for target service transmission; The first target resources comprise one or more of the following: A secondary cell under the source base station; A secondary base station corresponding to the source base station; A primary cell under a secondary base station corresponding to the source base station; A secondary cell under the secondary base station corresponding to the source base station; A secondary cell under the target base station; A secondary base station corresponding to the target base station; A primary cell under the secondary base station corresponding to the target base station; A secondary cell under the secondary base station corresponding to the target base station; The RRC reconfiguration message further comprises first indication information, the first indication information being used for indicating whether uplink transmission can be performed by using uplink resources of the source base station.

24. A processor-readable storage medium, comprising: The processor readable storage medium stores a computer program, the computer program being used for causing the processor to execute the method according to any one of claims 1 to 7 or the method according to any one of claims 8 to 14.

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