Data transmission method and apparatus, terminal and network side device

Abstract

The present application belongs to the technical field of communications. Disclosed are a data transmission method and apparatus, a terminal, and a network side device. The data transmission method in the embodiments of the present application comprises: a terminal establishes a first signaling radio bearer and a second signaling radio bearer; and, on the basis of the first signaling radio bearer and the second signaling radio bearer, the terminal transmits voice-related data, wherein the first signaling radio bearer is used for transmitting voice signaling data, and the second signaling radio bearer is used for transmitting voice service data.

Description

Data transmission method, device, terminal and network side equipment

[0001] Cross-reference to Related Applications

[0002] This application claims priority to Chinese Patent Application No. 202411073508.4 filed on August 6, 2024 in China, the content of which is incorporated herein by reference in its entirety. TECHNICAL FIELD

[0003] The present application belongs to the field of communication technology, and particularly relates to a data transmission method, device, terminal and network side equipment. BACKGROUND

[0004] Narrow Band-IoT (NB-IoT) is a low-power wide-area network technology standard for connecting various intelligent sensors and devices using wireless cellular networks and providing long-distance, wide-coverage and high-reliability communication services. High-orbit satellite communication has the advantages of wide coverage and high industry maturity, and has great potential in voice communication demand in remote environments such as oceans and deserts. If high-orbit satellites can support narrowband voice using NB-IoT narrowband technology, users can directly connect high-orbit satellites through terminals (e.g., mobile phones) for real-time voice communication, which will greatly expand the boundaries of communication services. However, in the related art, NB-IoT does not support voice, and there is no corresponding solution for how to transmit voice services in NB-IoT. SUMMARY

[0005] Embodiments of the present application provide a data transmission method, device, terminal and network side equipment, which can transmit voice-related data in NB-IoT by establishing signaling radio bearers, thereby facilitating the expansion of the service range of voice services.

[0006] In a first aspect, a data transmission method is provided, the method comprising:

[0007] establishing, by a terminal, a first signaling radio bearer and a second signaling radio bearer;

[0008] transmitting, by the terminal, voice-related data based on the first signaling radio bearer and the second signaling radio bearer;

[0009] wherein the first signaling radio bearer is configured to transmit voice signaling data, and the second signaling radio bearer is configured to transmit voice service data.

[0010] In a second aspect, a data transmission device is provided, the device comprising:

[0011] a processing module configured to establish a first signaling radio bearer and a second signaling radio bearer;

[0012] transmit voice-related data based on the first signaling radio bearer and the second signaling radio bearer;

[0013] The first signaling radio bearer is used for transmitting voice signaling data, and the second signaling radio bearer is used for transmitting voice service data.

[0014] In a third aspect, a data transmission method is provided, the method comprising:

[0015] The network-side device performs a first operation, the first operation comprising at least one of:

[0016] sending, to the terminal, at least one of configuration information of the first signaling radio bearer and the second signaling radio bearer;

[0017] receiving auxiliary information sent by the terminal, the auxiliary information being used for assisting the network-side device or informing the network-side device to establish at least one of the first signaling radio bearer and the second signaling radio bearer;

[0018] The first signaling radio bearer is used for transmitting voice signaling data, and the second signaling radio bearer is used for transmitting voice service data.

[0019] In a fourth aspect, a data transmission apparatus is provided, the apparatus comprising:

[0020] The processing module is configured to perform a first operation, the first operation comprising at least one of:

[0021] sending, to the terminal, at least one of configuration information of the first signaling radio bearer and the second signaling radio bearer;

[0022] receiving auxiliary information sent by the terminal, the auxiliary information being used for assisting the network-side device or informing the network-side device to establish at least one of the first signaling radio bearer and the second signaling radio bearer;

[0023] The first signaling radio bearer is used for transmitting voice signaling data, and the second signaling radio bearer is used for transmitting voice service data.

[0024] In a fifth aspect, a data transmission apparatus is provided, the apparatus being configured to perform the steps of the method according to the first aspect or implement the steps of the method according to the third aspect.

[0025] In a sixth aspect, a terminal is provided, the terminal comprising a processor and a memory, the memory storing a program or instructions executable on the processor, the program or instructions being executed by the processor to implement the steps of the method according to the first aspect.

[0026] In a seventh aspect, a terminal is provided, comprising a processor and a communication interface, wherein the processor is configured to establish a first signaling radio bearer and a second signaling radio bearer;

[0027] The communication interface is configured to transmit voice-related data by the terminal based on the first signaling radio bearer and the second signaling radio bearer.

[0028] The first signaling radio bearer is configured to transmit voice signaling data, and the second signaling radio bearer is configured to transmit voice service data.

[0029] In an eighth aspect, a network-side device is provided, comprising a processor and a memory, wherein the memory stores programs or instructions executable on the processor, and the programs or instructions, when executed by the processor, implement the steps of the method according to the third aspect.

[0030] In a ninth aspect, a network-side device is provided, comprising a processor and a communication interface, wherein the processor is configured to perform a first operation, and the first operation comprises at least one of the following:

[0031] sending, to a terminal, at least one of configuration information of a first signaling radio bearer and a second signaling radio bearer;

[0032] receiving, from a terminal, assistance information, wherein the assistance information is used to assist or inform the network-side device to establish at least one of the first signaling radio bearer and the second signaling radio bearer.

[0033] The first signaling radio bearer is configured to transmit voice signaling data, and the second signaling radio bearer is configured to transmit voice service data.

[0034] In a tenth aspect, a readable storage medium is provided, wherein the readable storage medium stores programs or instructions, and the programs or instructions, when executed by a processor, implement the steps of the method according to the first aspect or the steps of the method according to the third aspect.

[0035] In an eleventh aspect, a wireless communication system is provided, comprising a terminal and a network-side device, wherein the terminal is configured to implement the steps of the data transmission method according to the first aspect, and the network-side device is configured to implement the steps of the data transmission method according to the third aspect.

[0036] In a twelfth aspect, a chip is provided, comprising a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is configured to run programs or instructions to implement the steps of the method according to the first aspect or the steps of the method according to the third aspect.

[0037] In a thirteenth aspect, a computer program / program product is provided, which is stored in a storage medium, and which is executed by at least one processor to implement the steps of the method according to the first aspect, or to implement the steps of the method according to the third aspect.

[0038] In the embodiments of the present application, the terminal establishes a first signaling radio bearer and a second signaling radio bearer, and transmits voice-related data based on the first signaling radio bearer and the second signaling radio bearer; wherein the first signaling radio bearer is used to transmit voice signaling data, and the second signaling radio bearer is used to transmit voice service data, that is, the embodiments of the present application can transmit voice-related data by establishing a signaling radio bearer in NB-IoT, thereby facilitating expansion of the service range of voice services. BRIEF DESCRIPTION OF DRAWINGS

[0039] FIG. 1 is a block diagram of a wireless communication system to which embodiments of the present application can be applied;

[0040] FIG. 2 is a schematic diagram of an NTN deployment architecture provided by the related art;

[0041] FIG. 3 is a flowchart of a data transmission method according to an embodiment of the present application;

[0042] FIG. 4 is a flowchart of another data transmission method according to an embodiment of the present application;

[0043] FIG. 5 is a flowchart of yet another data transmission method according to an embodiment of the present application;

[0044] FIG. 6 is a flowchart of yet another data transmission method according to an embodiment of the present application;

[0045] FIG. 7 is a structural diagram of a data transmission apparatus according to an embodiment of the present application;

[0046] FIG. 8 is a structural diagram of another data transmission apparatus according to an embodiment of the present application;

[0047] FIG. 9 is a structural diagram of a communication device according to an embodiment of the present application;

[0048] FIG. 10 is a structural diagram of a terminal according to an embodiment of the present application;

[0049] FIG. 11 is a structural diagram of a network-side device according to an embodiment of the present application. DETAILED DESCRIPTION

[0050] With reference to the drawings and the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly described. Obviously, the described embodiments are only some of the embodiments of the present application, but not all of the embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those of ordinary skill in the art are within the scope of the present application.

[0051] The terms "first", "second", and the like in the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the terms used in this way can be interchanged under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described herein, and the objects distinguished by "first", "second" are generally a class, and are not limited to the number of objects, for example, the first object can be one or more. In addition, "or" in the present application means at least one of the connected objects. For example, the protection scope of "A or B" at least covers three schemes, namely, scheme one: including A and not including B; scheme two: including B and not including A; scheme three: including A and B. In addition, the terms "A and / or B", "at least one of A and B", "at least one of A or B" also at least cover the above three schemes, respectively. The character " / " generally represents that the objects before and after are in an "or" relationship.

[0052] The term "indication" in the present application can be a direct indication (or explicit indication) or an indirect indication (or implicit indication). Among them, the direct indication can be understood as that the sender explicitly informs the receiver of specific information, operation to be performed or request result, etc. in the sent indication; the indirect indication can be understood as that the receiver determines the corresponding information according to the indication sent by the sender, or judges and determines the operation to be performed or the request result according to the judgment result.

[0053] It is worth noting that the technology described in the embodiments of the present application is not limited to Long Term Evolution (LTE) / LTE-Advanced (LTE-A) systems, but can also be used in other wireless communication systems, such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single-carrier Frequency-Division Multiple Access (SC-FDMA) or other systems. The terms "system" and "network" in the embodiments of the present application are often used interchangeably, and the described technology can be used in the above-mentioned systems and radio technologies, as well as in other systems and radio technologies. The following description describes a New Radio (NR) system for example purposes, and NR terminology is used in most of the following description, but these technologies can also be applied to systems other than NR systems, such as 6th Generation (6G) communication systems. th

[0054] ​FIG. 1 shows a block diagram of a wireless communication system to which embodiments of the present application can be applied. The wireless communication system includes a terminal 11 and a network-side device 12. The terminal 11 can be a terminal-side device such as a mobile phone, a Tablet Personal Computer, a Laptop Computer, a notebook computer, a Personal Digital Assistant (PDA), a palmtop computer, a netbook, an Ultra-mobile Personal Computer (UMPC), a Mobile Internet Device (MID), an Augmented Reality (AR) device, a Virtual Reality (VR) device, a robot, a wearable device, a flight vehicle, a Vehicle User Equipment (VUE), a shipboard device, a Pedestrian User Equipment (PUE), a smart home (a home device with a wireless communication function such as a refrigerator, a television, a washing machine, or furniture), a game console, a Personal Computer (PC), a kiosk, or a self-service machine. The wearable device includes a smart watch, a smart bracelet, a smart earphone, smart glasses, smart jewelry (a smart bracelet, a smart necklace, a smart ring, a smart necklace, a smart anklet, a smart necklace, etc.), a smart wristband, smart clothes, etc. The vehicle-mounted device can also be referred to as a vehicle-mounted terminal, a vehicle-mounted controller, a vehicle-mounted module, a vehicle-mounted component, a vehicle-mounted chip, or a vehicle-mounted unit, etc. It should be noted that the specific type of the terminal 11 is not limited in the embodiments of the present application. The network-side device 12 can include an access network device or a core network device. The access network device can also be referred to as a Radio Access Network (RAN) device, a radio access network function, or a radio access network unit. The access network device can include a base station, a Wireless Local Area Network (WLAN) Access Point (AP), or a Wireless Fidelity (WiFi) node, etc.The base station can be referred to as a Node B (NB), an evolved Node B (eNB), a next generation Node B (gNB), a New Radio Node B (NR Node B), an access point, a relay station (RBS), a serving base station (SBS), a base transceiver station (BTS), a radio base station, a radio transceiver, a basic service set (BSS), an extended service set (ESS), a home Node B (HNB), a home evolved Node B, a transmit / receive point (TRP), or some other suitable terminology in the art, and is not limited to a particular technical terminology, provided that the same technical effect is achieved. It should be noted that in the embodiments of the present application, only the base station in the NR system is taken as an example for introduction, and the specific type of the base station is not limited.

[0055] The core network device can also be referred to as a core network node, a core network function, or a core network network element, etc., which includes but is not limited to at least one of the following: a mobility management entity (MME), an access and mobility management function (AMF), a session management function (SMF), a user plane function (UPF), a policy control function (PCF), a policy and charging rules function (PCRF), an edge application server discovery function (EASDF), a unified data management (UDM), a unified data repository (UDR), a home subscriber server (HSS), a centralized network configuration (CNC), a network repository function (NRF), a network exposure function (NEF), a local NEF (L-NEF), a binding support function (BSF), an application function (AF), a location management function (LMF), a gateway mobile location center (GMLC), a network data analytics function (NWDAF), etc. It should be noted that only the core network device in the NR system is taken as an example for introduction in the embodiments of the present application, and the specific type of the core network device is not limited. If the name of the core network device mentioned in the embodiments of the present application changes in the subsequent protocol version (for example, 6G), it is also within the protection scope of the present application.

[0056] Optionally, the core network device can be implemented by one or more function modules in one device, or can be implemented by multiple devices together, and the embodiments of the present application do not make a specific limitation hereon. It can be understood that the above function modules can be network elements in a hardware device, can be software function modules running on a dedicated hardware, or can be virtualized function modules instantiated on a platform (for example, a cloud platform).

[0057] For the convenience of understanding, some contents related to the embodiments of the present application are described as follows:

[0058] I. Introduction of non-terrestrial network (NTN)

[0059] A typical NTN deployment scenario is shown in FIG. 2. The link between a user equipment (UE) (i.e., a terminal) and a satellite is called a service link, and the link between the satellite and a ground gateway is called a feeder link.

[0060] There are two types of NTN communication systems: a transparent payload-based NTN communication system and a regenerative payload-based NTN communication system. In the third generation partnership project (3GPP) Release 17 (R17) and Release 18 (R18), only the transparent payload-based NTN communication system is considered. In this deployment environment, the terminal, base station, and core network device are all deployed on the ground, and the communication data between the terminal and the network device is transferred via the satellite in the air. In this system, the satellite only forwards the data between the base station and the terminal, and does not decode and process the data. In the 3GPP Release 19 (R19), it is extended to the regenerative payload-based NTN system. In this deployment environment, the satellite has all the functions of the base station and can decode and process the uplink or downlink data.

[0061] Based on the orbit height of the satellite, the NTN communication system is divided into high, low, and medium orbit satellite communication systems. Among them, the high orbit satellite commonly refers to the geostationary orbit (GEO) satellite, and the orbit height is 35786 kilometers, which is stationary relative to the ground. The low orbit (Low Earth Orbit) satellite commonly has an orbit height range of 600km-1200km. The medium orbit (Medium Earth Orbit) satellite commonly has an orbit height range of 2000km-10000km.

[0062] II. Introduction of Cellular Internet of Things (CIoT) Evolved Packet System (EPS) optimization

[0063] In order to send CIoT data to CIoT application server, two data transmission modes are defined in EPS for CIoT:

[0064] 1. Control Plane (CP) CIoT EPS optimization

[0065] The data transmission path is: UE-RAN-MME-Service Capibility Exposure Function (SCEF)-CIoT service application, or UE-RAN-MME-Serving GateWay (SGW)-PDN GateWay (PGW)-CIoT service application.

[0066] Under this scheme, no data radio bearer (DRB) needs to be established between UE and RAN, and service data transmission is transmitted through signal radio bearer (SRB). That is, service data is encapsulated in non-access stratum (NAS) message and transmitted as a container of radio resource control (RRC) message. It can be understood that, since service data is transmitted through signaling radio bearer, this data transmission scheme is generally understood as a control plane scheme.

[0067] The above-mentioned control plane CIoT optimization scheme reduces the signaling interaction between the terminal and the network side, and can effectively reduce the overhead.

[0068] 2. User Plane (UP) CIoT EPS optimization

[0069] The data transmission path is: UE-RAN-SGW-PGW-CIoT service application.

[0070] Under this scheme, CIoT data transmission mode is the same as traditional data flow, which is transmitted on DRB. It can be understood that, since service data is transmitted through data radio bearer, this data transmission scheme is generally understood as a user plane scheme.

[0071] In addition, the above-mentioned control plane optimization scheme and user plane optimization scheme are also applicable to the 5G system (5GS) scenario, which are respectively referred to as control plane CIoT 5GS optimization scheme and user plane CIoT 5GS optimization scheme. The data transmission mode is similar in principle to the EPS scenario, which is not described here.

[0072] III. Introduction of LTE Narrow Band-IoT (NB-IoT)

[0073] LTE NB-IoT is a low-power wide-area network technology standard for connecting various intelligent sensors and devices using wireless cellular networks and providing long-distance, wide-coverage and high-reliability communication services. LTE NB-IoT is developed on the basis of LTE standard and can be understood as a simplified version of LTE. Compared with LTE, the following procedures are not supported for NB-IoT UE: connected state mobility management (handover and measurement reporting), inter-radio access technology (RAT) cell reselection, inter-RAT mobility in connected mode, RRC inactive state (RRC_INACTIVE), carrier aggregation (CA), dual connectivity (DC), etc.

[0074] For the control plane EPS optimization scheme, for NB-IoT, RRC connection reconfiguration is not supported, DRB is not used, Access Stratum (AS) security is not used, no Packet Data Convergence Protocol (PDCP) entity is used, and only SRB1bis (without PDCP entity) is used to transmit data. For a terminal transmitting data through the control plane scheme, SRB1bis is established in the RRC connection establishment process. In the RRC establishment process, a NAS message carrying downlink data can be transmitted via SRB0 through an RRC connection setup (RRCConnectionSetup) message, and a NAS message carrying uplink data can be transmitted via SRB1bis through an RRC connection complete (RRCConnentionComplete) message. After entering the connected state, a NAS message carrying uplink data can be transmitted via SRB1bis through an uplink information transmission (ULInformationTransfer) message, and a NAS message carrying downlink data can be transmitted via SRB1bis through a DLInformationTransfer message.

[0075] For the user plane EPS optimization scheme, before AS security is activated, the NB-IoT terminal uses SRB1bis (without PDCP entity) to transmit RRC messages and / or NAS messages. After AS security is activated, the NB-IoT terminal uses SRB1 (with PDCP entity) to transmit RRC messages and / or NAS messages.

[0076] In addition, NB-IoT technology is designed at the beginning to transmit low-rate / latency-insensitive service data, and therefore does not support real-time services such as IP Multimedia Subsystem (IMS) voice.

[0077] Four, Voice over LTE (VoLTE) Introduction

[0078] VoLTE transmits voice services based on the IMS system. Among them, the IMS signaling required for voice session establishment and voice service packets are transmitted through DRB in the LTE system. In LTE, the Adaptive multi-Rate compression (AMR) voice coding scheme is commonly used. A common voice model generates a voice service packet every 20 ms, and the size of each voice service is related to the AMR coding rate used. For example, if the AMR coding rate is 4.75 kbs, the size of each original voice service packet is 95 bits.

[0079] The data transmission method provided by the embodiments of the present application will be described in detail below in combination with some embodiments and application scenarios thereof.

[0080] Please refer to FIG. 3, which is a flowchart of a data transmission method provided by an embodiment of the present application. The method can be executed by a terminal, as shown in FIG. 3, and includes the following steps:

[0081] Step 301: The terminal establishes a first signaling radio bearer and a second signaling radio bearer.

[0082] Step 302: The terminal transmits voice-related data based on the first signaling radio bearer and the second signaling radio bearer.

[0083] The first signaling radio bearer is used for transmitting voice signaling data, and the second signaling radio bearer is used for transmitting voice service data.

[0084] In the embodiment, the voice-related data can include voice signaling data and voice service data. The voice signaling data can be, for example, IMS signaling. The voice service data can be, for example, voice service packets.

[0085] For the above step 301, the terminal can autonomously establish at least one of the first signaling radio bearer and the second signaling radio bearer, for example, based on a default configuration or a default manner. Alternatively, the terminal can be triggered by a network-side device to establish at least one of the first signaling radio bearer and the second signaling radio bearer, for example, based on configuration information received from the network-side device.

[0086] It can be understood that the first signaling radio bearer and the second signaling radio bearer can be established in different ways or in the same way.

[0087] For the above step 302, it can be understood that the terminal transmits voice signaling data based on the first signaling radio bearer and transmits voice service data based on the second signaling radio bearer.

[0088] In the embodiments of the present application, the terminal establishes a first signaling radio bearer and a second signaling radio bearer and transmits voice-related data based on the first signaling radio bearer and the second signaling radio bearer. The first signaling radio bearer is used for transmitting voice signaling data, and the second signaling radio bearer is used for transmitting voice service data. That is, the embodiments of the present application can transmit voice-related data by establishing a signaling radio bearer in NB-IoT, thereby facilitating expansion of the service range of voice services.

[0089] It should be further explained that, in the embodiments of the present application, the voice-related data is transmitted through the signaling radio bearer, which can on the one hand enable the terminal transmitting data through the control plane scheme (such as the CP CIoT EPS optimization scheme) to support voice service, and on the other hand reduce the impact on the terminal supporting only the control plane scheme, i.e. without the need to configure a DRB for transmitting voice-related data.

[0090] Optionally, the terminal is a control plane narrowband Internet of Things terminal.

[0091] The control plane narrowband Internet of Things terminal can be understood as a terminal transmitting data through a control plane scheme (such as the CP CIoT EPS optimization scheme), or a terminal supporting control plane narrowband Internet of Things communication, or a terminal located in a control plane narrowband Internet of Things communication system, etc.

[0092] Optionally, the terminal is a non-ground terminal.

[0093] The non-ground terminal can be understood as a terminal supporting non-ground network communication, or a terminal located in a non-ground network communication system, etc. Optionally, the terminal establishing the first signaling radio bearer and the second signaling radio bearer comprises any of the following:

[0094] The terminal establishes the first signaling radio bearer and the second signaling radio bearer in a connection establishment process.

[0095] The terminal establishes the first signaling radio bearer in a connection establishment process, and establishes the second signaling radio bearer after the connection establishment is completed.

[0096] The connection establishment process can be an RRC connection establishment process.

[0097] In an embodiment, the terminal can establish the first signaling radio bearer and the second signaling radio bearer in a connection establishment process, which is conducive to improving the efficiency of establishing the first signaling radio bearer and the second signaling radio bearer, and further conducive to improving the efficiency of voice service.

[0098] Optionally, the configuration information of at least one of the first signaling radio bearer and the second signaling radio bearer can be carried through an RRC connection establishment message.

[0099] Specifically, in this embodiment, the first signaling radio bearer and the second signaling radio bearer are both established in a connection establishment process, so that the terminal can quickly transmit data in the case that there is voice signaling data and / or voice service data to be transmitted, without the need to wait for the first signaling radio bearer and / or the second signaling radio bearer to be established before transmitting data, which can reduce the data transmission delay.

[0100] In another embodiment, the terminal can establish the first signaling radio bearer in the connection setup procedure, and establish the second signaling radio bearer after the connection setup is completed, for example, the terminal can establish the second signaling radio bearer after the voice call setup is completed, or the terminal can establish the second signaling radio bearer after receiving a provisional response acknowledgement (PRACK) instruction, which is beneficial to ensure that the second signaling radio bearer is established for transmitting voice service data only in the case that the voice call is successfully established, so as to reduce the case that the second signaling radio bearer is still established in the case that the voice call setup fails, and thus is beneficial to save resources.

[0101] Optionally, the first signaling radio bearer and the second signaling radio bearer can also be established after the connection setup is completed. In this case, the configuration information of at least one of the first signaling radio bearer and the second signaling radio bearer can be carried by the RRC connection reconfiguration message.

[0102] Optionally, the terminal establishing the first signaling radio bearer includes any one of the following:

[0103] The terminal establishes the first signaling radio bearer based on the configuration information of the first signaling radio bearer received from the network side device.

[0104] The terminal establishes the first signaling radio bearer based on a first default mode.

[0105] In an embodiment, the terminal can be triggered by the network side device to establish the first signaling radio bearer. Specifically, the terminal can receive the configuration information of the first signaling radio bearer from the network side device, and establish the first signaling radio bearer based on the configuration information of the first signaling radio bearer, which is beneficial to ensure the reliability of the established first signaling radio bearer.

[0106] For example, the configuration information of the first signaling radio bearer can be carried in the RRC connection setup message, for example, the configuration information of the first signaling radio bearer can be carried in the narrowband RRC connection setup (RRCConnectionSetup-NB) message, in which case, the second signaling radio bearer can be established based on network configuration in the connection setup procedure, to ensure the consistency of the understanding of the second signaling radio bearer by the terminal and the network; or the configuration information of the first signaling radio bearer can be carried in a newly added message, which can reduce the impact of the supported messages (such as RRCConnectionSetup-NB) in the existing system, and the present embodiment is not limited in this regard.

[0107] In another embodiment, the first signaling radio bearer can be established autonomously by the terminal. Specifically, the terminal can establish the first signaling radio bearer based on a first default manner, for example, the terminal can establish the first signaling radio bearer autonomously based on a default configuration of the first signaling radio bearer, which is beneficial for the terminal to quickly establish the first signaling radio bearer. In addition, by the terminal autonomously establishing the first signaling radio bearer, the configuration overhead of the network can be reduced.

[0108] Optionally, the configuration information of the first signaling radio bearer comprises any of the following:

[0109] The radio configuration information of the first signaling radio bearer;

[0110] The first indication information is used to indicate that the terminal establishes the first signaling radio bearer by using a first default configuration;

[0111] The second indication information is used to indicate that the terminal establishes the first signaling radio bearer by using a second default manner;

[0112] The first default configuration is a default configuration of the first signaling radio bearer;

[0113] The second default manner is a manner of establishing the first signaling radio bearer by using configuration information of a third signaling radio bearer.

[0114] It should be noted that the above-mentioned first signaling radio bearer can not have a corresponding PDCP layer. It can be understood that for the above-mentioned first signaling radio bearer, the terminal does not need to establish, or does not need to maintain, or does not need to use a PDCP entity. The network side can not provide the PDCP configuration information corresponding to the first signaling radio bearer in the radio configuration of the first signaling radio bearer.

[0115] It should be noted that the terminal establishing the first signaling radio bearer by using the configuration information of the third signaling radio bearer can mean establishing the first signaling radio bearer by using all or part of the configuration information of the third signaling radio bearer. Further, the terminal establishing the first signaling radio bearer by using the configuration information of the third signaling radio bearer can mean establishing the first signaling radio bearer by using all or part of the protocol layer configuration information of the third signaling radio bearer, such as RLC configuration information, etc.

[0116] It is further noted that the terminal establishing the first signaling radio bearer using the configuration information of the third signaling radio bearer can refer to establishing the first signaling radio bearer using current configuration information of the third signaling radio bearer or using latest configuration information of the third signaling radio bearer. Further, the terminal establishing the first signaling radio bearer using the configuration information of the third signaling radio bearer can refer to establishing the first signaling radio bearer using current full or partial protocol layer configuration information of the third signaling radio bearer or using latest full or partial protocol layer configuration information of the third signaling radio bearer. For example, in a case that the terminal establishes the third signaling radio bearer based on network configuration, the terminal establishes the first signaling radio bearer based on network configuration corresponding to the third signaling radio bearer. In a case that the terminal establishes the third signaling radio bearer based on default configuration of the third signaling radio bearer, the terminal establishes the first signaling radio bearer based on default configuration corresponding to the third signaling radio bearer.

[0117] In the embodiment, the radio configuration information of the first signaling radio bearer can include, but is not limited to, at least one of radio link control (RLC) configuration information and logical channel identification (LCID), etc. The first default configuration can be a default configuration of the first signaling radio bearer, wherein the default configuration of the first signaling radio bearer can be agreed by protocol. For example, the default configuration of the first signaling radio bearer can include, but is not limited to, at least one of default RLC configuration information and default logical channel identification, etc.

[0118] The configuration information of the third signaling radio bearer can include, but is not limited to, at least one of RLC configuration information and logical channel identification. For example, the third signaling radio bearer can include a signaling radio bearer established in an RRC connection establishment process in related art, such as SRB1 or SRB1bis, etc. For example, when establishing the first signaling radio bearer, the terminal can establish an RLC entity corresponding to the first signaling radio bearer using the same configuration as RLC configuration information of the third signaling radio bearer (such as SRB1bis), and the logical channel corresponding to the first signaling radio bearer uses a configuration agreed by protocol (such as LCID=5).

[0119] In some optional embodiments, in a case that the terminal establishes the first signaling radio bearer using the configuration information of the third signaling radio bearer, the logical channel identification of the first signaling radio bearer can be a dedicated logical channel identification agreed by protocol, such as LCID=5.

[0120] In some optional embodiments, neither the first signaling radio bearer nor the third signaling radio bearer uses a PDCP entity.

[0121] It can be understood that, in a case where the configuration information of the first signaling radio bearer includes the radio configuration information of the first signaling radio bearer, the terminal can establish the first signaling radio bearer based on the radio configuration information of the first signaling radio bearer; in a case where the configuration information of the first signaling radio bearer includes the first indication information, the terminal can establish the first signaling radio bearer by using the first default configuration; and in a case where the configuration information of the first signaling radio bearer includes the second indication information, the terminal can establish the first signaling radio bearer by using the second default manner, that is, the terminal can establish the first signaling radio bearer by using the configuration information of the third signaling radio bearer.

[0122] Optionally, the establishing, by the terminal, of the first signaling radio bearer based on the first default manner includes any one of the following:

[0123] the terminal establishes the first signaling radio bearer based on a default configuration of the first signaling radio bearer;

[0124] the terminal establishes the first signaling radio bearer based on configuration information of the third signaling radio bearer.

[0125] In this embodiment, the default configuration of the first signaling radio bearer and the configuration information of the third signaling radio bearer can be referred to the related description in the foregoing embodiments, which will not be described here.

[0126] Optionally, the establishing, by the terminal, of the second signaling radio bearer includes any one of the following:

[0127] the terminal establishes the second signaling radio bearer based on configuration information of the second signaling radio bearer received from the network-side device;

[0128] the terminal establishes the second signaling radio bearer based on a third default manner.

[0129] In an embodiment, the terminal can be triggered by the network-side device to establish the second signaling radio bearer. Specifically, the terminal can receive, from the network-side device, configuration information of the second signaling radio bearer, and establish the second signaling radio bearer based on the configuration information of the second signaling radio bearer, which is beneficial to guarantee the reliability of the established second signaling radio bearer.

[0130] Exemplarily, in a case that the second signaling radio bearer is established in the RRC connection setup procedure, the configuration information of the second signaling radio bearer can be carried in the RRC connection setup message, for example, the configuration information of the second signaling radio bearer can be carried in the RRCConnectionSetup-NB message, in this case, the second signaling radio bearer can be established based on network configuration in the connection setup procedure, ensuring the consistency of the understanding of the second signaling radio bearer between the terminal and the network, and in addition, a new signaling radio bearer configuration message (such as the RRC reconfiguration message) can be avoided to be introduced to the terminal for transmitting data based on the control plane scheme; in a case that the second signaling radio bearer is established after the RRC connection setup is completed, the configuration information of the second signaling radio bearer can be carried in the RRC connection reconfiguration message, in this case, the configuration of the second signaling radio bearer can be realized by introducing the RRC connection reconfiguration message to the terminal for transmitting data based on the control plane method, and the influence on the existing supported message (such as the RRCConnectionSetup-NB) can be avoided; or the configuration information of the second signaling radio bearer can be carried in a newly added message, which is not limited in the embodiment.

[0131] In another embodiment, the second signaling radio bearer can be established autonomously by the terminal. Specifically, the terminal can establish the second signaling radio bearer based on a second default mode, for example, the terminal can autonomously establish the second signaling radio bearer based on the default configuration of the second signaling radio bearer, which is beneficial for the terminal to quickly establish the second signaling radio bearer and can also reduce the overhead of network configuration.

[0132] In some optional embodiments, for a case that the second signaling radio bearer is established after the connection setup is completed, the NAS layer of the terminal can send sixth indication information to the AS layer of the terminal, the sixth indication information being used to trigger the terminal to establish the second signaling radio bearer, for example, the sixth indication information can be the establishment request information of the second signaling radio bearer, or the sixth indication information can be the indication information of the voice call establishment completion. The terminal can establish the second signaling radio bearer based on a second default mode in response to the sixth indication information.

[0133] Optionally, the configuration information of the second signaling radio bearer comprises any one of the following:

[0134] The radio configuration information of the second signaling radio bearer;

[0135] Third indication information, the third indication information being used to indicate the terminal to establish the second signaling radio bearer by using a second default configuration;

[0136] a fourth indication information, where the fourth indication information is used for the terminal to establish the second signaling radio bearer in a fourth default manner;

[0137] wherein the second default configuration is a default configuration of the second signaling radio bearer;

[0138] wherein the fourth default manner is a manner of establishing the second signaling radio bearer by using the configuration information of the first signaling radio bearer, or a manner of establishing the second signaling radio bearer by using the configuration information of the third signaling radio bearer.

[0139] It should be noted that the second signaling radio bearer can have no corresponding PDCP layer. It can be understood that for the second signaling radio bearer, the terminal does not need to establish, or does not need to maintain, or does not need to use a PDCP entity. In the case of the wireless configuration of the second signaling radio bearer, the network side can not provide the PDCP configuration information corresponding to the second signaling radio bearer.

[0140] It should be noted that the terminal establishing the second signaling radio bearer by using the configuration information of the first signaling radio bearer or the configuration information of the third signaling radio bearer can refer to a manner of establishing the second signaling radio bearer by using all or part of the configuration information of the first signaling radio bearer or the third signaling radio bearer. Further, the terminal establishing the second signaling radio bearer by using the configuration information of the first signaling radio bearer or the configuration information of the third signaling radio bearer can refer to a manner of establishing the second signaling radio bearer by using all or part of the protocol layer configuration information of the first signaling radio bearer or the third signaling radio bearer, such as RLC configuration information.

[0141] It should be further noted that the terminal establishing the second signaling radio bearer using the configuration information of the third signaling radio bearer can refer to establishing the second signaling radio bearer using current configuration information or latest configuration information of the third signaling radio bearer. Further, the terminal establishing the second signaling radio bearer using the configuration information of the third signaling radio bearer can refer to establishing the second signaling radio bearer using current full or partial protocol layer configuration information of the third signaling radio bearer, or establishing the second signaling radio bearer using latest full or partial protocol layer configuration information of the third signaling radio bearer. For example, in a case where the terminal establishes the third signaling radio bearer based on network configuration, the terminal establishes the second signaling radio bearer based on network configuration corresponding to the third signaling radio bearer; in a case where the terminal establishes the third signaling radio bearer based on default configuration of the third signaling radio bearer, the terminal establishes the second signaling radio bearer based on default configuration corresponding to the third signaling radio bearer. The terminal establishes the second signaling radio bearer using the configuration information of the first signaling radio bearer in the same or similar manner as the terminal establishes the second signaling radio bearer using the configuration information of the third signaling radio bearer, and details are not described herein.

[0142] In the embodiment, the radio configuration information of the second signaling radio bearer can include, but is not limited to, at least one of RLC configuration information and logical channel identification.

[0143] The second default configuration can be a default configuration of the second signaling radio bearer, and the default configuration of the second signaling radio bearer can be determined by a protocol. For example, the default configuration of the second signaling radio bearer can include, but is not limited to, at least one of default RLC configuration information and default logical channel identification.

[0144] The configuration information of the first signaling radio bearer can include, but is not limited to, at least one of RLC configuration information and logical channel identification.

[0145] The configuration information of the third signaling radio bearer can include, but is not limited to, at least one of RLC configuration information and logical channel identification. For example, the third signaling radio bearer can include a signaling radio bearer established in a related art in an RRC connection establishment process, such as SRB1 or SRB1bis.

[0146] In some optional embodiments, in a case where the terminal establishes the first signaling radio bearer using the configuration information of the first signaling radio bearer or the configuration information of the third signaling radio bearer, the logical channel identification of the second signaling radio bearer can be a protocol-determined dedicated logical channel identification, such as LCID=6.

[0147] In some optional embodiments, the first signaling radio bearer, the second signaling radio bearer and the third signaling radio bearer do not use PDCP entities.

[0148] It can be understood that, in a case where the configuration information of the second signaling radio bearer includes the radio configuration information of the second signaling radio bearer, the terminal can establish the second signaling radio bearer based on the radio configuration information of the second signaling radio bearer; in a case where the configuration information of the second signaling radio bearer includes the third indication information, the terminal can establish the second signaling radio bearer by using the second default configuration; and in a case where the configuration information of the second signaling radio bearer includes the fourth indication information, the terminal can establish the second signaling radio bearer by using the fourth default manner, that is, the terminal can establish the second signaling radio bearer by using the configuration information of the first signaling radio bearer or the third signaling radio bearer.

[0149] In some optional embodiments, in a case where the second signaling radio bearer is established after the connection establishment is completed, the third indication information or the fourth indication information can be carried by media access control control element (MAC CE) signaling or can be carried by RRC signaling. For example, the RRC signaling can be transmitted by the third signaling radio bearer (for example, SRB1bis).

[0150] Optionally, the terminal establishes the second signaling radio bearer based on the third default manner includes any one of the following:

[0151] The terminal establishes the second signaling radio bearer based on the default configuration of the second signaling radio bearer.

[0152] The terminal establishes the second signaling radio bearer based on the configuration information of the first signaling radio bearer or the configuration information of the third signaling radio bearer.

[0153] In the embodiment, the configuration information of the first signaling radio bearer, the default configuration of the second signaling radio bearer and the configuration information of the third signaling radio bearer can refer to the related description of the foregoing embodiments, which will not be described herein.

[0154] Optionally, the third signaling radio bearer is a radio bearer SRB1 or SRB1bis established in the connection establishment process.

[0155] Optionally, in a case where the first signaling radio bearer and the second signaling radio bearer are established in the connection establishment process, the configuration information of the first signaling radio bearer and the configuration information of the second signaling radio bearer are carried by a connection establishment message.

[0156] Exemplarily, the configuration information of the SRB1bis, the configuration information of the first signaling radio bearer and the configuration information of the second signaling radio bearer can be simultaneously carried in the RRCConnectionSetup-NB message. For example, the RRCConnectionSetup-NB message can include a first information field, a second information field and a third information field, wherein the first information field is used for the terminal to establish the SRB1bis, for example, the first information field can be SRB-ToAddModList-NB-r13; the second information field is used for the terminal to establish the first signaling radio bearer, wherein the second information field can be a newly introduced information field, for example, the second information field can be a new information field SRB-ToAddModList-NB-r20 with a version number of r20; and the third information field is used for the terminal to establish the second signaling radio bearer, wherein the third information field can be a newly introduced information field, for example, the third information field can be a new information field SRB-ToAddModList-NB-r20 with a version number of r20.

[0157] Optionally, in the case that the first signaling radio bearer is established in the connection establishment process, the configuration information of the first signaling radio bearer is carried by the connection establishment message.

[0158] Exemplarily, the configuration information of the SRB1bis and the configuration information of the first signaling radio bearer can be simultaneously carried in the RRCConnectionSetup-NB message. For example, the RRCConnectionSetup-NB message can include a first information field and a second information field, wherein the first information field is used for the terminal to establish the SRB1bis, for example, the first information field can be SRB-ToAddModList-NB-r13; and the second information field is used for the terminal to establish the first signaling radio bearer, wherein the second information field can be a newly introduced information field, for example, the second information field can be SRB-ToAddModList-NB-r20.

[0159] Optionally, in the case that the second signaling radio bearer is established after the connection establishment process, the configuration information of the second signaling radio bearer is carried by the connection reconfiguration message.

[0160] Exemplarily, the connection reconfiguration message can be transmitted by the third signaling radio bearer, for example, the connection reconfiguration message can be transmitted by the third signaling radio bearer (for example, the SRB1bis).

[0161] In some optional embodiments, the network-side device is an access network device, and before the access network device issues the configuration information of the second signaling radio bearer, the access network device acquires seventh indication information from a core network device, the seventh indication information being used to trigger the access network device to configure the second signaling radio bearer. Exemplarily, the seventh indication information can be establishment request information of the second signaling radio bearer; or the seventh indication information can also be indication information of completion of voice call establishment.

[0162] Optionally, the method further comprises:

[0163] The terminal sends assistance information to the network-side device, the assistance information being used to assist the network-side device or inform the network-side device to establish at least one of the first signaling radio bearer and the second signaling radio bearer.

[0164] In this embodiment, the terminal sends assistance information to the network-side device, and then the network-side device can configure at least one of the first signaling radio bearer and the second signaling radio bearer based on the assistance information, or the network-side device can know that the terminal has established at least one of the first signaling radio bearer and the second signaling radio bearer based on the assistance information.

[0165] Optionally, the assistance information comprises at least one of the following:

[0166] First reason indication, used to indicate that the reason for connection establishment is voice;

[0167] Second reason indication, used to indicate that the reason for connection establishment is emergency call;

[0168] Bearer establishment request, used to request the network-side device to configure at least one of the first signaling radio bearer and the second signaling radio bearer;

[0169] Bearer establishment indication, used to indicate that the terminal has established at least one of the first signaling radio bearer and the second signaling radio bearer.

[0170] The first reason indication is used to indicate that the reason for connection establishment is voice, for example, mo-VoiceCall. Exemplarily, the terminal can carry an RRC connection establishment reason field in an RRC connection establishment request message, and the reason field is set to voice.

[0171] Exemplarily, when the reason for connection establishment is voice, the network-side device will provide the terminal with configuration information of at least one of the first signaling radio bearer and the second signaling radio bearer by default.

[0172] Exemplarily, the NAS layer of the terminal provides the AS layer of the terminal with the reason for connection establishment being voice.

[0173] The second reason indicates that the reason for connection establishment is an emergency call. Exemplarily, the terminal can carry an RRC connection establishment reason field in the RRC connection establishment request message, and the field is set as an emergency call.

[0174] Exemplarily, when the reason for connection establishment is an emergency call, the network side device will provide the terminal with configuration information of at least one of the first signaling radio bearer and the second signaling radio bearer by default.

[0175] The bearer establishment request is used to request the network side device to configure at least one of the first signaling radio bearer and the second signaling radio bearer. Exemplarily, a new information field can be introduced in the RRC connection establishment request message, which is used to carry the bearer establishment request.

[0176] Exemplarily, the bearer establishment request can include one information field, for example, a one-bit indication field. Exemplarily, when the RRC connection establishment request message carries the bearer establishment request, or the information field of the bearer establishment request is set to true, the terminal requests to establish at least one of the first signaling radio bearer and the second signaling radio bearer. Alternatively, the bearer establishment request can include two information fields, for example, two one-bit indication fields, which are respectively used to request to establish the first signaling radio bearer and the second signaling radio bearer.

[0177] Exemplarily, the NAS layer of the terminal can instruct or trigger the AS layer of the terminal to send the bearer establishment request to the network side device.

[0178] The bearer establishment indication is used to indicate that the terminal establishes at least one of the first signaling radio bearer and the second signaling radio bearer. For example, the bearer establishment indication is used to inform the network side device that the terminal will establish at least one of the first signaling radio bearer and the second signaling radio bearer by default.

[0179] Exemplarily, the bearer establishment indication can include one information field, for example, a one-bit indication field, which is used to inform the network side device that the terminal will establish at least one of the first signaling radio bearer and the second signaling radio bearer by default. Alternatively, the bearer establishment indication can include two information fields, for example, two one-bit indication fields, which are respectively used to inform the network side device that the terminal will establish the first signaling radio bearer and the second signaling radio bearer by default.

[0180] Exemplarily, the NAS layer of the terminal can instruct or trigger the AS layer of the terminal to send the bearer establishment indication to the network side device.

[0181] Exemplarily, in a case that the assistance information comprises the bearer establishment indication, the terminal can establish the first signaling radio bearer and the second signaling radio bearer based on a default manner, in particular, the terminal can establish the first signaling radio bearer based on a first default manner and establish the second signaling radio bearer based on a second default manner.

[0182] Optionally, the assistance information is carried by a connection establishment request message.

[0183] The embodiment carries the assistance information by the connection establishment request message, which is beneficial to saving signaling overhead.

[0184] Optionally, before the terminal establishes the first signaling radio bearer and the second signaling radio bearer, the method further comprises:

[0185] The terminal camps on a first cell, wherein the first cell is a cell supporting establishment of the first signaling radio bearer and the second signaling radio bearer.

[0186] In the embodiment, before the terminal establishes the first signaling radio bearer and the second signaling radio bearer, the terminal selects and camps on the first cell, and since the first cell is a cell supporting establishment of the first signaling radio bearer and the second signaling radio bearer, this is beneficial to guaranteeing successful establishment of the first signaling radio bearer and the second signaling radio bearer, and further guaranteeing transmission of voice-related data.

[0187] Optionally, the method further comprises:

[0188] The terminal learns that the first cell is a cell supporting establishment of the first signaling radio bearer and the second signaling radio bearer by any one of the following information:

[0189] First information, the first information being used to indicate that the first cell supports transmission of voice-related data by a signaling radio bearer;

[0190] Second information, the second information being used to indicate that the first cell supports establishment of the first signaling radio bearer and the second signaling radio bearer;

[0191] The first information and the second information are carried by a system message of the first cell.

[0192] In the embodiment, the first information and the second information are carried by a system message of the first cell, that is, the first information and the second information are carried in a system message of the first cell, for example, the first information and the second information can be carried in a system information block (SIB) 1 (namely, SIB1) of the first cell.

[0193] In the embodiment, the terminal knows that the first cell supports establishment of the first signaling radio bearer and the second signaling radio bearer based on the first information or the second information provided by the network-side device, so that the terminal can select and camp on the first cell in the case of requiring voice service, thereby facilitating guarantee of provision of voice service.

[0194] Optionally, the method further comprises:

[0195] In the case that the establishment of the second signaling radio bearer is completed, the terminal releases the first signaling radio bearer.

[0196] Exemplarily, in the case that the second signaling radio bearer is established after completion of connection establishment, the terminal can release the first signaling radio bearer in the case that the establishment of the second signaling radio bearer is completed.

[0197] In the embodiment, the terminal releases the first signaling radio bearer in the case that the establishment of the second signaling radio bearer is completed, thereby facilitating improvement of utilization of resources.

[0198] Optionally, the release of the first signaling radio bearer by the terminal comprises any one of the following:

[0199] The terminal actively releases the first signaling radio bearer.

[0200] The terminal releases the first signaling radio bearer based on fifth indication information received from the network-side device.

[0201] The fifth indication information is used to instruct the terminal to release the first signaling radio bearer.

[0202] In an embodiment, the terminal actively releases the first signaling radio bearer, thereby facilitating fast release of the first signaling radio bearer by the terminal.

[0203] In another embodiment, the terminal releases the first signaling radio bearer triggered by the network-side device, that is, the terminal releases the first signaling radio bearer in the case that fifth indication information is received from the network-side device, thereby facilitating guarantee of consistency understood by the terminal and the network side.

[0204] Please refer to FIG. 4, which is a flowchart of a data transmission method provided by an embodiment of the present application, and the method can be executed by a network-side device. As shown in FIG. 4, the method comprises the following steps:

[0205] In step 401, the network-side device executes a first operation, and the first operation comprises at least one of the following:

[0206] sending at least one of configuration information of the first signaling radio bearer and the second signaling radio bearer to the terminal;

[0207] receiving assistance information sent by a terminal, the assistance information being used for assisting or informing the network-side device to establish at least one of a first signaling radio bearer and a second signaling radio bearer;

[0208] The first signaling radio bearer is used for transmitting voice signaling data, and the second signaling radio bearer is used for transmitting voice service data.

[0209] Optionally, the terminal is a control plane narrowband Internet of Things terminal.

[0210] Optionally, the terminal is a non-ground terminal.

[0211] Optionally, the assistance information includes at least one of the following:

[0212] A first reason indication used for indicating that the connection establishment is caused by voice;

[0213] A second reason indication used for indicating that the connection establishment is caused by an emergency call;

[0214] A bearer establishment request used for requesting the network-side device to configure at least one of the first signaling radio bearer and the second signaling radio bearer;

[0215] A bearer establishment indication used for instructing the terminal to establish at least one of the first signaling radio bearer and the second signaling radio bearer.

[0216] Optionally, the configuration information of the first signaling radio bearer includes any one of the following:

[0217] Radio configuration information of the first signaling radio bearer;

[0218] First indication information used for instructing the terminal to establish the first signaling radio bearer by using a first default configuration;

[0219] Second indication information used for instructing the terminal to establish the first signaling radio bearer by using a second default manner;

[0220] The first default configuration is a default configuration of the first signaling radio bearer.

[0221] The second default manner is a manner of establishing the first signaling radio bearer by using configuration information of a third signaling radio bearer.

[0222] Optionally, the configuration information of the second signaling radio bearer includes any one of the following:

[0223] Radio configuration information of the second signaling radio bearer;

[0224] third indication information, the third indication information being used to instruct the terminal to establish the second signaling radio bearer by using a second default configuration;

[0225] fourth indication information, the fourth indication information being used to instruct the terminal to establish the second signaling radio bearer by using a fourth default manner;

[0226] The second default configuration is a default configuration of the second signaling radio bearer.

[0227] The fourth default manner is a manner of establishing the second signaling radio bearer by using configuration information of the first signaling radio bearer or a manner of establishing the second signaling radio bearer by using configuration information of a third signaling radio bearer.

[0228] Optionally, the third signaling radio bearer is a radio bearer SRB1 or SRB1bis established in a connection establishment process.

[0229] Optionally, in a case where the first signaling radio bearer and the second signaling radio bearer are established in the connection establishment process, the configuration information of the first signaling radio bearer and the configuration information of the second signaling radio bearer are carried by a connection establishment message.

[0230] Optionally, in a case where the second signaling radio bearer is established after the connection establishment process, the configuration information of the second signaling radio bearer is carried by a connection reconfiguration message.

[0231] Optionally, the method further comprises:

[0232] The network-side device sends fifth indication information to the terminal, the fifth indication information being used to instruct the terminal to release the first signaling radio bearer.

[0233] Optionally, the method further comprises:

[0234] The network-side device sends any one of the following information to the terminal:

[0235] First information, the first information being used to instruct a first cell to support transmission of voice-related data by using a signaling radio bearer;

[0236] Second information, the second information being used to instruct the first cell to support establishment of the first signaling radio bearer and the second signaling radio bearer.

[0237] The first information and the second information are carried by a system message of the first cell.

[0238] It should be noted that the implementation manners of the embodiment can refer to the related descriptions of the embodiment shown in FIG. 3, which will not be repeated here.

[0239] The embodiments of the present application are described below in conjunction with examples:

[0240] Example 1: SRBx and SRBy are established simultaneously in the RRC connection establishment process.

[0241] Exemplarily, as shown in FIG. 5, the data transmission method provided by the embodiment includes the following steps:

[0242] Step 501: The UE sends a random access preamble to the base station.

[0243] In this example, the UE can be a CP NB-IoT UE, and the base station can be an eNB or a next generation eNB (ng-eNB).

[0244] Step 502: The base station sends a random access response to the UE.

[0245] Step 503: The UE sends an RRC connection request message to the base station.

[0246] Exemplarily, the RRC connection request message can carry auxiliary information of SRBx (i.e., the first signaling radio bearer) and SRBy (i.e., the second signaling radio bearer). The auxiliary information can refer to the related description of the foregoing embodiments, and will not be described here.

[0247] Exemplarily, the RRC connection request message can be an RRCConnectionRequest-NB message.

[0248] Step 504: The base station sends an RRC connection setup message to the UE.

[0249] Exemplarily, the RRC connection setup message can carry configuration information of SRBx and SRBy. The configuration information of SRBx and SRBy can refer to the related description of the configuration information of the first signaling radio bearer and the second signaling radio bearer in the foregoing embodiments, and will not be described here.

[0250] It should be noted that in this example, the UE establishes SRBx and SRBy in the RRC connection establishment process.

[0251] The UE can establish the first signaling radio bearer based on configuration information of the SRBx received from the network side device, or can establish the SRBx based on a first default mode. The UE establishing the SRBx based on the first default mode can include establishing the SRBx based on a default configuration of the SRBx, or establishing the SRBx based on configuration information of a third signaling radio bearer (for example, SRB1bis).

[0252] The UE can establish the first signaling radio bearer based on configuration information of the SRBy received from the network side device, or can establish the SRBy based on a second default mode. The UE establishing the SRBy based on the second default mode can include establishing the SRBy based on a default configuration of the SRBy, or establishing the SRBy based on configuration information of a third signaling radio bearer (for example, SRB1bis).

[0253] It should be noted that the establishment mode of the SRBx and the SRBy described above can refer to the establishment mode of the first signaling radio bearer and the second signaling radio bearer in the foregoing embodiments, which will not be repeated here.

[0254] Step 505, the UE sends an RRC setup complete (RRCConnectionSetupComplete) message to the base station.

[0255] The RRC setup complete message can carry a NAS message.

[0256] Step 506, the terminal transmits voice related data through the SRBx / SRBy.

[0257] Specifically, the terminal can transmit voice signaling data through the SRBx, and can transmit voice service data through the SRBy.

[0258] Example two: establishing the SRBx in the RRC connection establishment process, and establishing the SRBy after the RRC connection establishment is completed.

[0259] Exemplarily, as shown in FIG. 6, the data transmission method provided by the embodiment includes the following steps:

[0260] Step 601, the UE sends a random access preamble (Random Access Preamble) to the base station.

[0261] In this example, the UE can be a CP NB-IoT UE, and the base station can be an eNB or an ng-eNB.

[0262] Step 602, the base station sends a random access response (Random Access Response) to the UE.

[0263] Step 603, the UE sends an RRC connection request (RRCConnectionRequest) message to the base station.

[0264] Exemplarily, the RRC connection request message can carry the assistance information of the SRBx (i.e., the first signaling radio bearer).

[0265] Exemplarily, the RRC connection request message can be an RRCConnectionRequest-NB message.

[0266] Step 604, the base station sends an RRC connection setup (RRCConnectionSetup) message to the UE.

[0267] Exemplarily, the RRC connection setup message can carry the configuration information of the SRBx, which can refer to the related description of the configuration information of the first signaling radio bearer in the foregoing embodiments and will not be described here.

[0268] It should be noted that in this example, the UE establishes the SRBx in the RRC connection setup process.

[0269] The UE can establish the first signaling radio bearer based on the configuration information of the SRBx received from the network side device, or can establish the SRBx based on a first default mode. The UE establishes the SRBx based on the first default mode can include establishing the SRBx based on a default configuration of the SRBx, or establishing the SRBx based on the configuration information of a third signaling radio bearer (e.g., SRB1bis).

[0270] It should be noted that the establishment mode of the SRBx can refer to the establishment mode of the first signaling radio bearer in the foregoing embodiments and will not be described here.

[0271] Step 605, the UE sends an RRC setup complete (RRCConnectionSetupComplete) message to the base station.

[0272] The RRC setup complete message can carry a NAS message.

[0273] Step 606, the UE and the base station establish an SRBy (i.e., the second signaling radio bearer).

[0274] Exemplarily, the SRBy can be established after the voice call setup is completed, or the SRBy can be established after the terminal feeds back a PRACK instruction.

[0275] Step 607: The terminal transmits the voice related data through the SRBx / SRBy.

[0276] Specifically, the terminal can transmit the voice signaling data through the SRBx and transmit the voice service data through the SRBy.

[0277] It should be noted that the step of transmitting the voice signaling data through the SRBx by the terminal can also occur before step 606.

[0278] The UE can establish the first signaling radio bearer based on configuration information of the SRBy received from the base station, or can establish the SRBy based on a second default manner. The UE establishing the SRBy based on the second default manner can include establishing the SRBy based on a default configuration of the SRBy, or establishing the SRBy based on configuration information of the SRBx or a third signaling radio bearer (e.g., SRB1bis).

[0279] Exemplarily, before the base station issues the configuration information of the SRBy, the base station obtains seventh indication information from a core network device, the seventh indication information being used to trigger the base station to configure the SRBy. Exemplarily, the seventh indication information can be establishment request information of the SRBy, or the seventh indication information can also be indication information of completion of voice call establishment.

[0280] Exemplarily, the configuration information of the SRBy can include establishment indication information (i.e., the third indication information or the fourth indication information) of the SRBy, which is used to instruct the terminal to establish the SRBy. Exemplarily, the establishment indication information of the SRBy can be one-bit indication information.

[0281] Exemplarily, the establishment indication information of the SRBy can be carried through MAC CE signaling or RRC signaling. The RRC signaling can be transmitted through the SRB1bis.

[0282] It should be noted that the establishment manner of the SRBy can refer to the establishment manner of the second signaling radio bearer in the foregoing embodiments, which will not be repeated here.

[0283] Optionally, in the case of establishing the SRBy, the terminal can release the SRBx. The terminal releasing the SRBx can refer to the related description of the terminal releasing the first signaling radio bearer in the foregoing embodiments, which will not be repeated here.

[0284] In conclusion, the embodiment of the present application can realize the configuration and establishment of the voice service related bearer under the control plane optimization architecture. It should be noted that the embodiment of the present application can be applied to the LTE control plane evolved packet core (EPC) / 5G core network (5G Core, 5GC) optimization architecture, etc.

[0285] It should be noted that the data transmission method provided by the embodiment of the present application can be executed by the data transmission device. In the embodiment of the present application, the data transmission device is taken as an example to execute the data transmission method.

[0286] The embodiment of the present application provides a data transmission device. As an example, the data transmission device can be a communication device or a component in the communication device, such as a chip. The communication device can be a terminal, a network side device or a server, etc. For example, the terminal can include but is not limited to the types of the terminal 11 listed above, the network side device can include but is not limited to the types of the network side device 12 listed above, and the embodiment of the present application does not make specific limitations.

[0287] The data transmission device includes a receiving module, a sending module and a processing module. The receiving module, the sending module and the processing module can be implemented by software or by hardware. When implemented by hardware, the processing module can be implemented by a processor. For example, the processor can include a general purpose processor, a special purpose processor, etc., such as a central processing unit (CPU), a microprocessor, a digital signal processor (DSP), an artificial intelligent (AI) processor, a graphics processing unit (GPU), an application specific integrated circuit (ASIC), a network processor (NP), a field programmable gate array (FPGA) or other programmable logic devices, gate circuits, transistors, discrete hardware components, etc. The receiving module and the sending module can be implemented by a communication interface, which can include one or more of a transceiver, a pin, a circuit, a bus, a radio frequency unit, etc.

[0288] Specifically, referring to FIG. 7, when the data transmission apparatus is a terminal or a component in the terminal, the data transmission apparatus 700 includes a processing module 701 configured to establish a first signaling radio bearer and a second signaling radio bearer; and a transceiver module 702 configured to transmit voice-related data by the terminal based on the first signaling radio bearer and the second signaling radio bearer.

[0289] The first signaling radio bearer is configured to transmit voice signaling data, and the second signaling radio bearer is configured to transmit voice service data.

[0290] Optionally, the terminal is a control plane narrowband Internet of Things terminal.

[0291] Optionally, the terminal is a non-terrestrial terminal.

[0292] Optionally, the processing module 701 is specifically configured to perform any one of the following:

[0293] establish the first signaling radio bearer and the second signaling radio bearer in a connection establishment process;

[0294] establish the first signaling radio bearer in a connection establishment process, and establish the second signaling radio bearer after completion of the connection establishment.

[0295] Optionally, the processing module 701 is specifically configured to perform any one of the following:

[0296] establish the first signaling radio bearer based on configuration information of the first signaling radio bearer received from a network side device;

[0297] establish the first signaling radio bearer based on a first default mode.

[0298] Optionally, the configuration information of the first signaling radio bearer includes any one of the following:

[0299] radio configuration information of the first signaling radio bearer;

[0300] first indication information, the first indication information being used to indicate that the terminal establishes the first signaling radio bearer by using a first default configuration;

[0301] second indication information, the second indication information being used to indicate that the terminal establishes the first signaling radio bearer by using a second default mode;

[0302] The first default configuration is a default configuration of the first signaling radio bearer.

[0303] The second default mode is a mode of establishing the first signaling radio bearer by using configuration information of a third signaling radio bearer.

[0304] Optionally, the processing module 701 is specifically configured to perform any one of the following:

[0305] establish the first signaling radio bearer based on a default configuration of the first signaling radio bearer;

[0306] establish the first signaling radio bearer based on configuration information of a third signaling radio bearer.

[0307] Optionally, the processing module 701 is specifically configured to perform any one of the following:

[0308] establish the second signaling radio bearer based on configuration information of the second signaling radio bearer received from a network side device;

[0309] establish the second signaling radio bearer based on a third default mode.

[0310] Optionally, the configuration information of the second signaling radio bearer includes any one of the following:

[0311] radio configuration information of the second signaling radio bearer;

[0312] third indication information, the third indication information being used to instruct the terminal to establish the second signaling radio bearer by using a second default configuration;

[0313] fourth indication information, the fourth indication information being used to instruct the terminal to establish the second signaling radio bearer by using a fourth default mode;

[0314] wherein the second default configuration is a default configuration of the second signaling radio bearer;

[0315] wherein the fourth default mode is a mode of establishing the second signaling radio bearer by using the configuration information of the first signaling radio bearer, or a mode of establishing the second signaling radio bearer by using configuration information of a third signaling radio bearer.

[0316] Optionally, the processing module 701 is specifically configured to perform any one of the following:

[0317] establish the second signaling radio bearer based on a default configuration of the second signaling radio bearer;

[0318] establish the second signaling radio bearer based on the configuration information of the first signaling radio bearer or configuration information of a third signaling radio bearer.

[0319] Optionally, the third signaling radio bearer is a radio bearer SRB1 or SRB1bis established in a connection establishment process.

[0320] Optionally, in the case that the first signaling radio bearer and the second signaling radio bearer are established in the connection establishment procedure, the configuration information of the first signaling radio bearer and the configuration information of the second signaling radio bearer are carried by a connection establishment message.

[0321] Optionally, in the case that the second signaling radio bearer is established after the connection establishment procedure, the configuration information of the second signaling radio bearer is carried by a connection reconfiguration message.

[0322] Optionally, the transceiver module 702 is further configured to send, to the network-side device, auxiliary information, wherein the auxiliary information is used for assisting the network-side device or informing the network-side device to establish at least one of the first signaling radio bearer and the second signaling radio bearer.

[0323] Optionally, the auxiliary information comprises at least one of the following:

[0324] a first reason indication, used for indicating that a reason for connection establishment is voice;

[0325] a second reason indication, used for indicating that a reason for connection establishment is an emergency call;

[0326] a bearer establishment request, used for requesting the network-side device to configure at least one of the first signaling radio bearer and the second signaling radio bearer;

[0327] a bearer establishment indication, used for instructing the terminal to establish at least one of the first signaling radio bearer and the second signaling radio bearer.

[0328] Optionally, the auxiliary information is carried by a connection establishment request message.

[0329] Optionally,

[0330] The processing module 701 is further configured to camp on a first cell before the first signaling radio bearer and the second signaling radio bearer are established, wherein the first cell is a cell that supports establishment of the first signaling radio bearer and the second signaling radio bearer.

[0331] Optionally, the processing module 701 is further configured to:

[0332] learn that the first cell is a cell that supports establishment of the first signaling radio bearer and the second signaling radio bearer by any one of the following information:

[0333] first information, used for indicating that the first cell supports transmission of voice-related data through a signaling radio bearer;

[0334] second information, used for indicating that the first cell supports establishment of the first signaling radio bearer and the second signaling radio bearer.

[0335] The first information and the second information are carried through a system message of the first cell.

[0336] Optionally, the processing module 701 is further configured to:

[0337] In a case where the second signaling radio bearer is established, the first signaling radio bearer is released.

[0338] Optionally, the processing module 701 is specifically configured to perform any one of the following:

[0339] The first signaling radio bearer is actively released.

[0340] The first signaling radio bearer is released based on fifth indication information received from a network side device.

[0341] The fifth indication information is used to instruct the terminal to release the first signaling radio bearer.

[0342] The data transmission apparatus provided by the embodiments of the present application can implement each process implemented by the method embodiment of FIG. 3 and achieve the same technical effects. To avoid repetition, details are not described herein.

[0343] Referring to FIG. 8, when the data transmission apparatus is a network side device or a component in the network side device, the data transmission apparatus 800 includes a processing module 801 configured to perform a first operation, and the first operation includes at least one of the following:

[0344] At least one of configuration information of the first signaling radio bearer and the second signaling radio bearer is sent to a terminal.

[0345] Auxiliary information sent by the terminal is received, and the auxiliary information is used to assist the network side device or inform the network side device to establish at least one of the first signaling radio bearer and the second signaling radio bearer.

[0346] The first signaling radio bearer is used to transmit voice signaling data, and the second signaling radio bearer is used to transmit voice service data.

[0347] Optionally, the terminal is a control plane narrowband Internet of Things terminal.

[0348] Optionally, the terminal is a non-ground terminal.

[0349] Optionally, the auxiliary information includes at least one of the following:

[0350] A first reason indication is used to indicate that a connection establishment reason is voice.

[0351] A second reason indication is used to indicate that a connection establishment reason is an emergency call.

[0352] a bearer establishment request for requesting the network-side device to configure at least one of the first signaling radio bearer and the second signaling radio bearer;

[0353] a bearer establishment indication for instructing the terminal to establish at least one of the first signaling radio bearer and the second signaling radio bearer.

[0354] Optionally, the configuration information of the first signaling radio bearer comprises any one of the following:

[0355] wireless configuration information of the first signaling radio bearer;

[0356] first indication information for instructing the terminal to establish the first signaling radio bearer by using a first default configuration;

[0357] second indication information for instructing the terminal to establish the first signaling radio bearer by using a second default manner;

[0358] wherein the first default configuration is a default configuration of the first signaling radio bearer;

[0359] wherein the second default manner is a manner of establishing the first signaling radio bearer by using configuration information of a third signaling radio bearer.

[0360] Optionally, the configuration information of the second signaling radio bearer comprises any one of the following:

[0361] wireless configuration information of the second signaling radio bearer;

[0362] third indication information for instructing the terminal to establish the second signaling radio bearer by using a second default configuration;

[0363] fourth indication information for instructing the terminal to establish the second signaling radio bearer by using a fourth default manner;

[0364] wherein the second default configuration is a default configuration of the second signaling radio bearer;

[0365] wherein the fourth default manner is a manner of establishing the second signaling radio bearer by using configuration information of the first signaling radio bearer, or a manner of establishing the second signaling radio bearer by using configuration information of a third signaling radio bearer.

[0366] Optionally, the third signaling radio bearer is a radio bearer SRB1 or SRB1bis established in a connection establishment process.

[0367] Optionally, in the case that the first signaling radio bearer and the second signaling radio bearer are established in the connection establishment procedure, the configuration information of the first signaling radio bearer and the configuration information of the second signaling radio bearer are carried by a connection establishment message.

[0368] Optionally, in the case that the second signaling radio bearer is established after the connection establishment procedure, the configuration information of the second signaling radio bearer is carried by a connection reconfiguration message.

[0369] Optionally, the apparatus further comprises:

[0370] a sending module, configured to send fifth indication information to the terminal, the fifth indication information being used to instruct the terminal to release the first signaling radio bearer.

[0371] Optionally, the apparatus further comprises:

[0372] a sending module, configured to send any one of the following information to the terminal:

[0373] first information, the first information being used to instruct a first cell to support transmission of voice related data through a signaling radio bearer;

[0374] second information, the second information being used to instruct the first cell to support establishment of the first signaling radio bearer and the second signaling radio bearer.

[0375] The first information and the second information are carried by a system message of the first cell.

[0376] The data transmission apparatus provided by the embodiments of the present application can realize each process realized by the method embodiment of FIG. 4 and achieve the same technical effects. To avoid repetition, details are not described herein.

[0377] As shown in FIG. 9, the embodiments of the present application further provide a communication device 900, comprising a processor 901 and a memory 902, the memory 902 has a program or instruction which can be run on the processor 901 stored thereon. For example, when the communication device 900 is a terminal, the program or instruction is executed by the processor 901 to realize each step of the above data transmission method embodiment and achieve the same technical effects. When the communication device 900 is a network side device, the program or instruction is executed by the processor 901 to realize each step of the above data transmission method embodiment and achieve the same technical effects. To avoid repetition, details are not described herein.

[0378] The embodiment of the present application further provides a terminal comprising a processor and a communication interface, wherein the communication interface is coupled with the processor, and the processor is configured to run programs or instructions to implement the steps in the method embodiment shown in FIG. 3. The terminal embodiment corresponds to the terminal-side method embodiment described above, and each implementation process and implementation manner of the method embodiment can be applied to the terminal embodiment and achieve the same technical effects. The terminal can be the data transmission apparatus shown in FIG. 7. Specifically, FIG. 10 is a schematic diagram of the hardware structure of a terminal for implementing the embodiment of the present application.

[0379] The terminal 1000 includes, but is not limited to, at least part of components such as a radio frequency unit 1001, a network module 1002, an audio output unit 1003, an input unit 1004, a sensor 1005, a display unit 1006, a user input unit 1007, an interface unit 1008, a memory 1009, and a processor 1010.

[0380] Those skilled in the art can understand that the terminal 1000 can further include a power supply (such as a battery) for supplying power to each component, and the power supply can be logically connected with the processor 1010 through a power management system, so as to realize functions such as management of charging, discharging, and power consumption management through the power management system. The terminal structure shown in FIG. 10 does not constitute a limitation on the terminal, and the terminal can include more or fewer components than those shown, or combine certain components, or have a different arrangement of components, which will not be described here.

[0381] It should be understood that in the embodiment of the present application, the input unit 1004 can include a graphics processor 10041 and a microphone 10042, and the graphics processor 10041 processes image data of a still picture or a video obtained by an image capture device (such as a camera) in a video capture mode or an image capture mode. The display unit 1006 can include a display panel 10061, which can be configured in the form of a liquid crystal display, an organic light-emitting diode, etc. The user input unit 1007 includes at least one of a touch panel 10071 and other input devices 10072. The touch panel 10071 is also called a touch screen. The touch panel 10071 can include two parts of a touch detection device and a touch controller. The other input devices 10072 can include, but are not limited to, a physical keyboard, function keys (such as volume control keys, on-off keys, etc.), a trackball, a mouse, a joystick, etc., which will not be described here.

[0382] In the embodiment of the present application, the radio frequency unit 1001 can transmit downlink data from a network side device to the processor 1010 for processing, and can send uplink data to the network side device. Generally, the radio frequency unit 1001 includes, but is not limited to, an antenna, an amplifier, a transceiver, a coupler, a low-noise amplifier, a duplexer, etc.

[0383] The memory 1009 can be used to store software programs or instructions and various data. The memory 1009 can mainly include a first storage area storing programs or instructions and a second storage area storing data, wherein the first storage area can store an operating system, application programs or instructions required by at least one function (such as a sound playing function, an image playing function, etc.), and the like. In addition, the memory 1009 can include a volatile memory or a non-volatile memory. The non-volatile memory can be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an Electrically EPROM (EEPROM), or a flash memory. The volatile memory can be a Random Access Memory (RAM), a Static RAM (SRAM), a Dynamic RAM (DRAM), a Synchronous DRAM (SDRAM), a Double Data Rate SDRAM (DDR SDRAM), an Enhanced SDRAM (ESDRAM), a Synch link DRAM (SLDRAM), and a Direct Rambus RAM (DRRAM). The memory 1009 in the embodiments of the present application includes but is not limited to these and any other suitable types of memory.

[0384] The processor 1010 can include one or more processing units; optionally, the processor 1010 integrates an application processor and a modem processor, wherein the application processor mainly processes operations related to an operating system, a user interface, and an application program, and the modem processor mainly processes wireless communication signals, such as a baseband processor. It can be understood that the above-mentioned modem processor can also not be integrated into the processor 1010.

[0385] The processor 1010 is configured to establish a first signaling radio bearer and a second signaling radio bearer.

[0386] The radio frequency unit 1001 is configured to transmit voice-related data by the terminal based on the first signaling radio bearer and the second signaling radio bearer.

[0387] The first signaling radio bearer is used for transmitting voice signaling data, and the second signaling radio bearer is used for transmitting voice service data.

[0388] It can be understood that the implementation processes of the implementation manners mentioned in the embodiment can refer to the related descriptions of the foregoing data transmission method embodiments and achieve the same or corresponding technical effects. To avoid repetition, details are not described herein again.

[0389] The embodiment of the application further provides a network side device, including a processor and a communication interface, the communication interface and the processor are coupled, the processor is used for running a program or an instruction, and the steps of the method embodiment shown in FIG. 4 are realized. The network side device embodiment corresponds to the network side device method embodiment described above, and each implementation process and implementation manner of the foregoing method embodiment can be applied to the network side device embodiment and achieve the same technical effects.

[0390] Specifically, the embodiment of the application further provides a network side device, which can be the data transmission apparatus shown in FIG. 8. As shown in FIG. 11, the network side device 1100 includes an antenna 1101, a radio frequency device 1102, a baseband device 1103, a processor 1104, and a memory 1105. The antenna 1101 is connected with the radio frequency device 1102. In the uplink direction, the radio frequency device 1102 receives information through the antenna 1101, and sends the received information to the baseband device 1103 for processing. In the downlink direction, the baseband device 1103 processes the information to be sent and sends it to the radio frequency device 1102, and the radio frequency device 1102 processes the received information and sends it out through the antenna 1101.

[0391] The method performed by the network side device in the foregoing embodiment can be implemented in the baseband device 1103, which includes a baseband processor.

[0392] The baseband device 1103 may, for example, include at least one baseband board, and a plurality of chips are arranged on the baseband board, as shown in FIG. 11. One of the chips is, for example, a baseband processor, which is connected with the memory 1105 through a bus interface to call the program in the memory 1105 and perform the network device operation shown in the foregoing method embodiment.

[0393] The network side device can further include a network interface 1106, which is, for example, a common public radio interface (Common Public Radio Interface, CPRI).

[0394] Specifically, the network side device 1100 in the embodiments of the present application further includes instructions or programs stored in the storage 1105 and executable on the processor 1104, the processor 1104 invokes the instructions or programs in the storage 1105 to perform the method executed by each module shown in FIG. 8 and achieve the same technical effects, to avoid repetition, details are not described herein.

[0395] The embodiments of the present application further provide a readable storage medium, the readable storage medium stores programs or instructions, the programs or instructions are executed by a processor to implement each process of the above-mentioned data transmission method embodiments and achieve the same technical effects, to avoid repetition, details are not described herein.

[0396] The processor is the processor in the terminal in the above-mentioned embodiments. The readable storage medium includes a computer readable storage medium, such as a computer readable only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, etc. In some examples, the readable storage medium can be a non-transitory readable storage medium.

[0397] The embodiments of the present application further provide a chip, the chip includes a processor and a communication interface, the communication interface and the processor are coupled, the processor is used to run programs or instructions to implement each process of the above-mentioned data transmission method embodiments and achieve the same technical effects, to avoid repetition, details are not described herein.

[0398] It should be understood that the chip mentioned in the embodiments of the present application can also be referred to as a system chip, a system chip, a chip system or a system on chip, etc.

[0399] The embodiments of the present application further provide a computer program / program product, the computer program / program product is stored in a storage medium, the computer program / program product is executed by at least one processor to implement each process of the above-mentioned data transmission method embodiments and achieve the same technical effects, to avoid repetition, details are not described herein.

[0400] The embodiments of the present application further provide a wireless communication system, including a terminal and a network side device, the terminal can be used to execute the steps of the above-mentioned data transmission method, and the network side device can be used to execute the steps of the above-mentioned data transmission method.

[0401] It should be noted that, in the present document, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can also include other elements not expressly listed or inherent to such process, method, article, or apparatus. An element proceeded by "comprises a", "comprising", or the like does not, without more constraints, preclude the existence of additional identical elements in the process, method, article, or apparatus that comprises the element. Furthermore, it is to be understood that the methods and apparatuses of the present application can be carried out by specific hardware, by software, or by a combination of hardware and software. It is therefore, contemplated to this patent to cover any and all modifications, variations, or equivalents that fall within the scope of the present application. Accordingly, where a concept can have been illustrated in only one of the exemplary embodiments, various aspects of the concept can be modified and / or combined to produce a variety of other embodiments that are not specifically illustrated. Thus, for purposes of describing particular embodiments, reference has been made to orientations. However, it should be understood that the described embodiments can be carried out in other orientations than those explicitly described without departing from the scope of the present application.

[0402] From the above description of the embodiments, it is apparent that the above-mentioned method can be realized by means of a computer software product and a general hardware platform, of course, it can also be realized by hardware. The computer software product is stored in a storage medium (such as ROM, RAM, magnetic disc, optical disc, etc.), and includes a plurality of instructions for making the terminal or network side device execute the method described in each embodiment of the present application.

[0403] The embodiments of the present application are described above in combination with the drawings, but the present application is not limited to the above-mentioned specific embodiments, the above-mentioned specific embodiments are only illustrative, but not restrictive, and those skilled in the art can make many forms of embodiments under the inspiration of the present application without departing from the scope of the present application and the scope protected by the claims.

Claims

1. A data transmission method, comprising: a terminal establishing a first signaling radio bearer and a second signaling radio bearer; the terminal transmitting voice-related data based on the first signaling radio bearer and the second signaling radio bearer; wherein the first signaling radio bearer is used for transmitting voice signaling data, and the second signaling radio bearer is used for transmitting voice service data.

2. The method of claim 1, wherein, The terminal is a control plane narrowband internet of things terminal.

3. The method of claim 1 or 2, wherein, The terminal is a non-terrestrial terminal.

4. The method of any one of claims 1 to 3, wherein, The terminal establishing the first signaling radio bearer and the second signaling radio bearer comprises any one of the following: The terminal establishes the first signaling radio bearer and the second signaling radio bearer in a connection establishment process. The terminal establishes the first signaling radio bearer in a connection establishment process, and establishes the second signaling radio bearer after the connection establishment is completed.

5. The method of any one of claims 1 to 4, wherein, The terminal establishing the first signaling radio bearer comprises any one of the following: The terminal establishes the first signaling radio bearer based on configuration information of the first signaling radio bearer received from a network side device. The terminal establishes the first signaling radio bearer based on a first default mode.

6. The method of claim 5, wherein, The configuration information of the first signaling radio bearer comprises any one of the following: Radio configuration information of the first signaling radio bearer; first indication information used for indicating that the terminal establishes the first signaling radio bearer by using a first default configuration; second indication information used for the terminal to establish the first signaling radio bearer by using a second default mode; wherein the first default configuration is a default configuration of the first signaling radio bearer; wherein the second default mode is a mode of establishing the first signaling radio bearer by using configuration information of a third signaling radio bearer.

7. The method of claim 5, wherein, The terminal establishing the first signaling radio bearer based on the first default mode comprises any one of the following: The terminal establishes the first signaling radio bearer based on a default configuration of the first signaling radio bearer; The terminal establishes the first signaling radio bearer based on configuration information of a third signaling radio bearer.

8. The method of any one of claims 1 to 7, wherein, The terminal establishing the second signaling radio bearer comprises any one of the following: The terminal establishes the second signaling radio bearer based on configuration information of the second signaling radio bearer received from a network side device. The terminal establishes the second signaling radio bearer based on a third default mode.

9. The method of claim 8, wherein, The configuration information of the second signaling radio bearer comprises any one of the following: Radio configuration information of the second signaling radio bearer; third indication information used for indicating that the terminal establishes the second signaling radio bearer by using a second default configuration; fourth indication information used for the terminal to establish the second signaling radio bearer by using a fourth default mode; wherein the second default configuration is a default configuration of the second signaling radio bearer; wherein the fourth default mode is a mode of establishing the second signaling radio bearer by using configuration information of the first signaling radio bearer, or a mode of establishing the second signaling radio bearer by using configuration information of a third signaling radio bearer.

10. The method of claim 8, wherein, The terminal establishing the second signaling radio bearer based on the third default mode comprises any one of the following: The terminal establishes the second signaling radio bearer based on a default configuration of the second signaling radio bearer. The terminal establishes the second signaling radio bearer based on configuration information of the first signaling radio bearer or configuration information of a third signaling radio bearer.

11. The method of claim 6 or 7 or 9 or 10, wherein, The third signaling radio bearer is a radio bearer SRB1 or SRB1bis established in a connection establishment procedure.

12. The method of any one of claims 1 to 11, wherein, In a case that the first signaling radio bearer and the second signaling radio bearer are established in the connection establishment procedure, the configuration information of the first signaling radio bearer and the configuration information of the second signaling radio bearer are carried by a connection establishment message.

13. The method of any one of claims 1 to 11, wherein, In a case that the second signaling radio bearer is established after the connection establishment procedure, the configuration information of the second signaling radio bearer is carried by a connection reconfiguration message.

14. The method of any of claims 1-13, further comprising: The terminal sends assistance information to a network side device, the assistance information being used for assisting the network side device or informing the network side device to establish at least one of the first signaling radio bearer and the second signaling radio bearer.

15. The method of claim 14, wherein, The assistance information comprises at least one of: a first cause indication indicating a cause of connection establishment as voice; a second cause indication indicating a cause of connection establishment as emergency call; a bearer establishment request requesting the network side device to configure at least one of the first signaling radio bearer and the second signaling radio bearer; a bearer establishment indication indicating the terminal to establish at least one of the first signaling radio bearer and the second signaling radio bearer.

16. The method of claim 14 or 15, wherein, The assistance information is carried by a connection establishment request message.

17. The method of any one of claims 1 to 16, wherein, Before the terminal establishes the first signaling radio bearer and the second signaling radio bearer, the method further comprises: The terminal camps on a first cell, wherein the first cell is a cell supporting establishment of the first signaling radio bearer and the second signaling radio bearer.

18. The method of claim 17, further comprising: The terminal learns that the first cell is a cell supporting establishment of the first signaling radio bearer and the second signaling radio bearer through any of the following information: first information indicating that the first cell supports transmission of voice related data through a signaling radio bearer; second information indicating that the first cell supports establishment of the first signaling radio bearer and the second signaling radio bearer; wherein the first information and the second information are carried by a system message of the first cell.

19. The method of claim 4, further comprising: In a case that the second signaling radio bearer is established, the terminal releases the first signaling radio bearer.

20. The method of claim 19, wherein, The terminal releasing the first signaling radio bearer comprises any of the following: The terminal actively releases the first signaling radio bearer; The terminal releases the first signaling radio bearer based on fifth indication information received from a network side device; wherein the fifth indication information indicates the terminal to release the first signaling radio bearer.

21. A data transmission method, comprising: A network side device performing a first operation, the first operation comprising at least one of: a first operation comprising at least one of: sending, to a terminal, at least one of configuration information of a first signaling radio bearer and configuration information of a second signaling radio bearer; receiving, from the terminal, assistance information for assisting or informing the network-side device to establish at least one of the first signaling radio bearer and the second signaling radio bearer; wherein the first signaling radio bearer is used for transmitting voice signaling data, and the second signaling radio bearer is used for transmitting voice service data.

22. The method of claim 21, wherein, The terminal is a control plane narrowband internet of things terminal.

23. The method of claim 21 or 22, wherein, The terminal is a non-terrestrial terminal.

24. The method of any one of claims 21-23, wherein, The assistance information includes at least one of: a first cause indication indicating that a connection establishment is caused by voice; a second cause indication indicating that a connection establishment is caused by an emergency call; a bearer establishment request requesting the network-side device to configure at least one of the first signaling radio bearer and the second signaling radio bearer; a bearer establishment indication indicating that the terminal establishes at least one of the first signaling radio bearer and the second signaling radio bearer.

25. The method of any one of claims 21 to 24, wherein, The configuration information of the first signaling radio bearer includes any one of: radio configuration information of the first signaling radio bearer; first indication information indicating that the terminal establishes the first signaling radio bearer in a first default manner; second indication information indicating that the terminal establishes the first signaling radio bearer in a second default manner; wherein the first default manner is a manner of establishing the first signaling radio bearer by using configuration information of a third signaling radio bearer. The configuration information of the second signaling radio bearer includes any one of:

26. The method of any one of claims 21 to 25, wherein, radio configuration information of the second signaling radio bearer; third indication information indicating that the terminal establishes the second signaling radio bearer in a second default manner; fourth indication information indicating that the terminal establishes the second signaling radio bearer in a fourth default manner; wherein the second default manner is a manner of establishing the second signaling radio bearer by using configuration information of the first signaling radio bearer, or a manner of establishing the second signaling radio bearer by using configuration information of a third signaling radio bearer. The third signaling radio bearer is a radio bearer SRB1 or SRB1bis established in a connection establishment process. In a case where the first signaling radio bearer and the second signaling radio bearer are established in the connection establishment process, the configuration information of the first signaling radio bearer and the configuration information of the second signaling radio bearer are carried by a connection establishment message.

27. The method of claim 25 or 26, wherein, In a case where the second signaling radio bearer is established after the connection establishment process, the configuration information of the second signaling radio bearer is carried by a connection reconfiguration message.

28. The method of any one of claims 21 to 27, wherein, 30. The method of any one of claims 21 to 27, further comprising:

29. The method of any one of claims 21 to 27, wherein, ​ ​ The network-side device sends fifth indication information to the terminal, and the fifth indication information is used to instruct the terminal to release the first signaling radio bearer.

31. The method of any one of claims 21-30, further comprising: The network-side device sends any one of the following information to the terminal: First information, the first information is used to indicate that the first cell supports transmitting voice-related data through a signaling radio bearer; Second information, the second information is used to indicate that the first cell supports establishing the first signaling radio bearer and the second signaling radio bearer; The first information and the second information are carried through the system message of the first cell.

32. A data transmission apparatus, comprising: A processing module, configured to establish a first signaling radio bearer and a second signaling radio bearer; A transceiver module, configured to transmit voice-related data based on the first signaling radio bearer and the second signaling radio bearer; The first signaling radio bearer is used to transmit voice signaling data, and the second signaling radio bearer is used to transmit voice service data.

33. The apparatus of claim 32, wherein, The processing module is specifically configured to perform any one of the following: Establish the first signaling radio bearer and the second signaling radio bearer in a connection establishment process; Establish the first signaling radio bearer in a connection establishment process, and establish the second signaling radio bearer after the connection establishment is completed.

34. The apparatus of any one of claims 32-33, wherein, The processing module is specifically configured to: Establish the first signaling radio bearer based on configuration information of the first signaling radio bearer received from a network-side device; Establish the first signaling radio bearer based on a first default mode.

35. The apparatus of any one of claims 32-34, wherein, The processing module is specifically configured to perform any one of the following: Establish the second signaling radio bearer based on configuration information of the second signaling radio bearer received from a network-side device; Establish the second signaling radio bearer based on a third default mode.

36. A data transmission apparatus, comprising: A processing module, configured to perform a first operation, the first operation comprising at least one of the following: Send at least one of configuration information of a first signaling radio bearer and a second signaling radio bearer to a terminal; Receive auxiliary information sent by the terminal, the auxiliary information being used to assist a network-side device or to inform the network-side device to establish at least one of the first signaling radio bearer and the second signaling radio bearer; The first signaling radio bearer is used to transmit voice signaling data, and the second signaling radio bearer is used to transmit voice service data.

37. The apparatus of claim 36, wherein, The auxiliary information comprises at least one of the following: First reason indication, used to indicate that the reason for connection establishment is voice; Second reason indication, used to indicate that the reason for connection establishment is an emergency call; Bearer establishment request, used to request the network-side device to configure at least one of the first signaling radio bearer and the second signaling radio bearer; Bearer establishment indication, used to instruct the terminal to establish at least one of the first signaling radio bearer and the second signaling radio bearer.

38. The apparatus of any one of claims 36-37, wherein, The configuration information of the first signaling radio bearer comprises any one of the following: Radio configuration information of the first signaling radio bearer; The first indication information is used to instruct the terminal to establish the first signaling radio bearer by using a first default configuration. The second indication information is used to instruct the terminal to establish the first signaling radio bearer by using a second default manner. The first default configuration is a default configuration of the first signaling radio bearer. The second default manner is a manner of establishing the first signaling radio bearer by using configuration information of a third signaling radio bearer.

39. The apparatus of any one of claims 36-38, wherein, The configuration information of the second signaling radio bearer comprises any one of the following: The radio configuration information of the second signaling radio bearer; The third indication information is used to instruct the terminal to establish the second signaling radio bearer by using a second default configuration. The fourth indication information is used to instruct the terminal to establish the second signaling radio bearer by using a fourth default manner. The second default configuration is a default configuration of the second signaling radio bearer. The fourth default manner is a manner of establishing the second signaling radio bearer by using the configuration information of the first signaling radio bearer, or a manner of establishing the second signaling radio bearer by using configuration information of a third signaling radio bearer. 40.A terminal comprising a processor and a memory, the memory storing programs or instructions executable on the processor, the programs or instructions, when executed by the processor, implementing steps of the data transmission method according to any one of claims 1 to 20. 41.A network side device comprising a processor and a memory, the memory storing programs or instructions executable on the processor, the programs or instructions, when executed by the processor, implementing steps of the data transmission method according to any one of claims 21 to 31. 42.A readable storage medium, the readable storage medium storing programs or instructions, the programs or instructions, when executed by a processor, implementing steps of the data transmission method according to any one of claims 1 to 20, or implementing steps of the data transmission method according to any one of claims 21 to 31. 43.A computer program product, the computer program product being executed by at least one processor to implement steps of the data transmission method according to any one of claims 1 to 20, or to implement steps of the data transmission method according to any one of claims 21 to 31.

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