Access method and device of terminal equipment

Abstract

The invention provides an access method and device for terminal equipment, and relates to the technical field of communication. The method comprises: receiving a device access request sent by a core network, the device access request carrying first indication information and second indication information, the first indication information being used for indicating a trigger reason, and the second indication information being used for indicating a terminal device to be accessed; sending the equipment access request to terminal equipment to be accessed; receiving a device access response sent by a first terminal device in response to the device access request, the first terminal device being any to-be-accessed terminal device, and the device access response carrying a device identifier of the first terminal device; and sending the equipment access response to the core network. Some embodiments of the present application are used for reducing the complexity requirement for the A-IoT device.

Description

Technical Field

[0001] The embodiments of the present application relate to the field of communication technology, and more specifically, to a method and apparatus for accessing a terminal device. Background Art

[0002] The Internet of Things (IoT) is an important development direction in the field of information technology today, and the Ambient Internet of Things (A-IoT) further expands and deepens its application on the basis of the traditional Internet of Things. In the application scenarios of A-IoT, the communication interaction between the base station / reader and numerous A-IoT devices plays a vital role.

[0003] At present, when the base station / reader performs read and write operations on A-IoT devices, the process involves multiple complex steps. For example, before the read and write operations, a tedious device identification and authentication process is required, including multiple rounds of signal interaction and security verification. In the reading and writing process, there are also complex protocol interactions and data format conversion. These complex processes have placed high demands on the computing power, storage capacity, and communication capabilities of A-IoT devices. This has led to an increase in the design and manufacturing costs of A-IoT devices, limiting the application of A-IoT devices in some cost-sensitive or computing resource-limited scenarios, and may also affect the deployment efficiency and promotion of the entire A-IoT system. Summary of the invention

[0004] The exemplary embodiments of the present application provide a method and apparatus for accessing a terminal device, which are used to reduce the complexity requirements for A-IoT devices.

[0005] Some embodiments of the present application provide the following technical solutions:

[0006] In a first aspect, some embodiments of the present application provide an access method of a terminal device, which is applied to a network access device, and the method includes:

[0007] Receive a device access request sent by a core network, where the device access request carries first indication information and second indication information, where the first indication information is used to indicate a triggering cause, and the second indication information is used to indicate a terminal device to be accessed;

[0008] Sending the device access request to the terminal device to be accessed;

[0009] receiving a device access response sent by a first terminal device in response to the device access request, wherein the first terminal device is any terminal device to be accessed, and the device access response carries a device identification of the first terminal device;

[0010] Sending the device access response to the core network.

[0011] In a second aspect, some embodiments of the present application provide a network access device, including:

[0012] A receiving unit, configured to receive a device access request sent by a core network, wherein the device access request carries first indication information and second indication information, wherein the first indication information is used to indicate a triggering cause, and the second indication information is used to indicate a terminal device to be accessed;

[0013] A sending unit, used for sending the device access request to the terminal device to be accessed;

[0014] The receiving unit is further configured to receive a device access response sent by a first terminal device in response to the device access request, wherein the first terminal device is any terminal device to be accessed, and the device access response carries a device identification of the first terminal device;

[0015] The sending unit is further configured to send the device access response to the core network.

[0016] In a third aspect, some embodiments of the present application provide an electronic device comprising: a memory and a processor, wherein the memory stores a computer program, and the processor is configured to implement the terminal device access method described in the first aspect when executing the computer program.

[0017] In a fourth aspect, some embodiments of the present application provide a computer-readable storage medium having a computer program stored thereon. When the computer program is executed by a computing device, the computing device implements the terminal device access method described in the first aspect.

[0018] In a fifth aspect, some embodiments of the present application provide a chip comprising a processor and a memory, wherein the memory is used to store programs or instructions that can be run on the processor, and the processor is used to execute the programs or instructions to enable the access method of the terminal device described in the first aspect.

[0019] In a sixth aspect, some embodiments of the present application provide a computer program product, which, when executed on a computer, enables the computer to implement the terminal device access method described in the first aspect.

[0020] It can be known from the above technical solutions that when the network access device receives the device access request carrying the first indication information and the second indication information sent by the core network, the access method for the terminal device provided in the embodiment of the present application sends the device access request to the terminal device to be accessed, and when receiving the device access response sent by the first terminal device in the terminal devices to be accessed in response to the device access request, the device access response is sent to the core network. Compared with the process of network access devices accessing terminal devices in the prior art, the process of the access method for the terminal device provided in the embodiment of the present application is simpler, so the embodiment of the present application can reduce the complexity requirements for A-IoT devices. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the implementation methods of some embodiments of the present application or related technologies, the following is a brief introduction to the drawings required for use in the description of the embodiments or related technologies. Obviously, the drawings described below are some embodiments of the present application, and a person skilled in the art can also obtain other drawings based on these drawings.

[0022] Figure 1 A topological schematic diagram of a communication system provided by some embodiments is shown;

[0023] Figure 2 A flowchart showing the steps of a method for accessing a terminal device in some embodiments;

[0024] Figure 3 A flowchart showing the steps of the access method of the terminal device in some other embodiments;

[0025] Figure 4 A flowchart showing the steps of the access method of the terminal device in some other embodiments;

[0026] Figure 5 A flowchart showing the steps of the access method of the terminal device in some other embodiments;

[0027] Figure 6 A flowchart showing the steps of the access method of the terminal device in some other embodiments;

[0028] Figure 7 A schematic diagram of channel mapping relationship in some embodiments is shown;

[0029] Figure 8 Schematic diagrams of channel mapping relationships in other embodiments are shown;

[0030] Fig. 9 Schematic diagrams of channel mapping relationships in other embodiments are shown;

[0031] Fig.10Schematic diagrams of channel mapping relationships in other embodiments are shown;

[0032] Fig.11 Some embodiments provide a schematic diagram of a protocol stack for a hollow interface;

[0033] Fig.12 A schematic diagram of the structure of a network access device in some embodiments of the present application is shown;

[0034] Fig.13 Schematic diagrams of the hardware structure of electronic devices in some embodiments of the present application are shown. DETAILED DESCRIPTION

[0035] It should be noted that the brief description of the terms in this application is only for the convenience of understanding the implementation methods described below. In order to make the purpose and implementation methods of this application clearer, the exemplary implementation methods of this application will be clearly and completely described below in conjunction with the drawings in the exemplary embodiments of this application. Obviously, the described exemplary embodiments are only part of the embodiments of this application, not all of the embodiments.

[0036] It is not intended to limit the embodiments of the present application. Unless otherwise specified, these terms should be understood according to their ordinary and customary meanings.

[0037] The terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover but not exclude inclusion, for example, a product or device comprising a list of components is not necessarily limited to all the components expressly listed but may include other components not expressly listed or inherent to such product or device.

[0038] References to "some implementations", "some embodiments", etc. in the specification indicate that the described implementations or embodiments may include specific features, structures, or characteristics, but not every embodiment may include the specific features, structures, or characteristics. In addition, such phrases do not necessarily refer to the same implementation. In addition, when a specific feature, structure, or characteristic is described in connection with an embodiment, it is considered to be within the knowledge of those skilled in the art to implement such feature, structure, or characteristic in connection with other implementations (whether or not explicitly described herein).

[0039] The following first describes the communication system provided in the embodiments of the present application.

[0040] Figure 1 A topological diagram of a communication system provided in some embodiments of the present application. Figure 1As shown, the communication system includes: a core network 11, a network access device 12 and a terminal device 13. Among them, a data transmission link is established between the core network 11 and the network access device 12. The core network 11 can send a paging request to the network access device 12 through the data transmission link, and the network access device 12 can send an initial user equipment (User Equipment, UE) message to the core network 11 through the data transmission link after the terminal device 13 successfully accesses the random access. An A-IoT uplink and an A-IoT downlink can be established between the terminal device 13 and the network access device 12 by random access. After the A-IoT uplink and the A-IoT downlink are established between the terminal device 13 and the network access device 12 by random access, the terminal device 13 can send uplink A-IoT information to the network access device 12 through the A-IoT uplink, and receive A-IoT downlink information sent by the network access device 12 through the A-IoT downlink. Correspondingly, the network access device 12 can receive uplink A-IoT information sent by the terminal device 13 through the A-IoT uplink, and can also send A-IoT downlink information to the terminal device 13 through the A-IoT downlink.

[0041] In some embodiments, a New Radio (NR) uplink and an NR downlink are also established between the network access device 12 and the terminal device 13. The terminal device 13 can send uplink NR information to the network access device through the NR uplink, and receive NR downlink information sent by the network access device through the NR downlink. Correspondingly, the network access device 12 can receive uplink NR information sent by the terminal device 13 through the NR uplink, and can also send NR downlink information to the terminal device 13 through the NR downlink.

[0042] In some embodiments, the network access device 12 may be a long term evolution (LTE), a long term evolution advanced (LTE-A), an evolutionary base station (eNB or eNodeB), a 5G network, a base station in a future communication system, or a reader integrated in a base station. The base station may include various macro base stations, micro base stations, home base stations, wireless remotes, reconfigurable intelligent surfaces (RIS), routers, wireless fidelity (WIFI) devices, etc.

[0043] In some embodiments, the terminal device 13 may be a device with wireless transceiver function, which may be deployed on land, including indoors or outdoors, handheld, wearable or vehicle-mounted; it may also be deployed on the water surface (such as ships, etc.); it may also be deployed in the air (such as airplanes, balloons and satellites, etc.). The terminal device may be a mobile phone, a tablet computer (Pad), a computer with wireless transceiver function, a virtual reality (VR) terminal, an augmented reality (AR) terminal, a wireless terminal in industrial control, a wireless terminal in self-driving, a wireless terminal in remote medical, a wireless terminal in smart grid, a wireless terminal in transportation safety, a wireless terminal in smart city, a wireless terminal in smart home, an Ambient-IoT device, etc. The embodiments of the present application do not limit the application scenarios. A terminal may also be sometimes referred to as a user equipment (UE), an access terminal, a UE unit, a UE station, a mobile station, a mobile station, a remote station, a remote terminal, a mobile device, a UE terminal, a wireless communication device, a UE agent or a UE device, etc., but the embodiments of the present application are not limited thereto. As an example, Figure 1 It is taken as an example that the terminal device 13 is an A-IoT device.

[0044] In other embodiments, the communication system may further include: intermediate nodes and / or auxiliary nodes. An A-IoT uplink and an A-IoT uplink and downlink are established between the network access device and the terminal device through the intermediate nodes and / or auxiliary nodes. The terminal device sends uplink A-IoT information to the network access device through the intermediate nodes and / or auxiliary nodes, and receives A-IoT downlink information sent by the network access device through the intermediate nodes and / or auxiliary nodes. Correspondingly, the network access device can receive uplink A-IoT information sent by the terminal device through the intermediate nodes and / or auxiliary nodes, and send A-IoT downlink information to the terminal device through the intermediate nodes and / or auxiliary nodes.

[0045] It should be noted that Figure 1 The communication system may be a possible access method for the terminal device provided in the embodiment of the present application, but the embodiment of the present application is not limited to this. The communication system to which the access method for the terminal device provided in the embodiment of the present application is applied may also include more communication devices. The embodiment of the present application is not limited to this, and the communication system can support the access method for the terminal device provided based on the embodiment of the present application.

[0046] An embodiment of the present application provides a method for accessing a terminal device. Figure 2 A schematic diagram of a process flow of a terminal device access method provided in an embodiment of the present application is shown, such as Figure 2 As shown, the access method of the terminal device may include:

[0047] S21. The core network sends a device access request to the network access device.

[0048] Correspondingly, the network access device receives the device access request sent by the core network.

[0049] The device access request carries first indication information and second indication information, the first indication information is used to indicate a trigger cause (Trigger Cause), and the second indication information is used to indicate a terminal device to be accessed.

[0050] In some embodiments, the trigger reason indicated by the first indication information may be: inventory or command, and the command may be: read command and write command. When the trigger reason is a read command, the device access request is a device data read request, and when the trigger reason is a write command, the device access request is a device data write request.

[0051] In some embodiments, the number of terminal devices to be accessed indicated by the second indication information is 1.

[0052] In some other embodiments, the second indication information indicates that the number of terminal devices to be accessed is multiple (greater than or equal to 2).

[0053] In some embodiments, the second indication information may indicate the terminal device to be accessed in a manner such that the terminal device to be accessed is indicated by a device identification code (Identification, ID) of each terminal device to be accessed.

[0054] In some embodiments, the second indication information may indicate the terminal devices to be accessed by indicating the terminal devices to be accessed through the ID of the device group to which each terminal device to be accessed belongs, the area to which each terminal device to be accessed belongs, etc.

[0055] S22: The network access device sends a device access request to the terminal device to be accessed.

[0056] Correspondingly, the terminal device to be accessed receives the device access request sent by the network access device.

[0057] That is, the network access device forwards the received device access request to the terminal device that needs access.

[0058] In some embodiments, the network access device sends a device access request to the terminal device to be accessed, including:

[0059] The network access device broadcasts a device access request within the coverage area to send the device access request to the terminal device to be accessed.

[0060] Since the device access request carries second indication information for indicating the terminal device to be accessed, each terminal device received within the coverage area can determine whether it is the terminal device to be accessed based on the second indication information carried in the device access request, and then determine whether to respond to the device access request.

[0061] S23: The terminal device to be accessed executes an operation corresponding to the device access request.

[0062] In some embodiments, the device access request is used to read data in the terminal device to be accessed, and the accessing terminal device performs an operation corresponding to the device access request, including: reading data corresponding to the device access request from a local storage space.

[0063] In other embodiments, the device access request is used to write data to the terminal device to be accessed, and the accessing terminal device performs the operation corresponding to the device access request, including: saving the data to be written to the terminal device to be accessed to a preset storage location.

[0064] S24. The first terminal device sends a device access response to the network access device in response to the device access request.

[0065] Correspondingly, the network access device receives a device access response sent by the first terminal device in response to the device access request.

[0066] The first terminal device is any terminal device to be accessed, and the device access response carries a device identification of the first terminal device.

[0067] S25. The network access device sends a device access response to the core network.

[0068] Correspondingly, the core network receives the device access response sent by the network access device.

[0069] The terminal device access method provided in the embodiment of the present application sends a device access request to the terminal device to be accessed when the network access device receives the device access request carrying the first indication information and the second indication information sent by the core network, and sends a device access response to the core network when receiving the device access response sent by the first terminal device in the terminal devices to be accessed in response to the device access request. Compared with the process of network access device accessing terminal devices in the prior art, the process of the terminal device access method provided in the embodiment of the present application is simpler, so the embodiment of the present application can reduce the complexity requirements for A-IoT devices.

[0070] based on Figure 2 The embodiment shown in the figure, the embodiment of the present application also provides another terminal device access method, the terminal device access method is used to read data from the terminal device to be accessed, refer to Figure 3 As shown, the access method of the terminal device includes:

[0071] S301. The core network sends a device data reading request to a network access device.

[0072] Correspondingly, the network access device receives the device data reading request sent by the core network.

[0073] Among them, the device data read request carries first indication information, second indication information and identification information of data that needs to be read from each terminal device to be accessed, the first indication information is used to indicate the triggering reason, and the second indication information is used to indicate the terminal device to be accessed.

[0074] As described above, the number of terminal devices to be accessed may be one or more. When the number of terminal devices to be accessed is more than one, the data to be read from different terminal devices to be accessed may be different.

[0075] S302: The network access device sends a device data reading request to the terminal device to be accessed.

[0076] Correspondingly, the terminal device to be accessed receives the device data reading request sent by the network access device.

[0077] S303: The terminal device to be accessed reads the data to be read.

[0078] S304. The first terminal device sends a device data read response to the network access device in response to the device data read request.

[0079] Correspondingly, the network access device receives a device data read response sent by the first terminal device in response to the device data read request.

[0080] The first terminal device is any terminal device to be accessed, and the device data reading response carries the device identification of the first terminal device and the data to be read from the first terminal device.

[0081] S305. The network access device sends a device data reading response to the core network.

[0082] based on Figure 2 The embodiment shown in the figure, the embodiment of the present application also provides another terminal device access method, the terminal device access method is used to write data to the terminal device to be accessed, refer to Figure 4 As shown, the access method of the terminal device includes:

[0083] S401. The core network sends a device data write request to a network access device.

[0084] Correspondingly, the network access device receives the device data write request sent by the core network.

[0085] The device data write request carries first indication information, second indication information, and data that needs to be written to each terminal device to be accessed. The first indication information is used to indicate the triggering reason, and the second indication information is used to indicate the terminal device to be accessed.

[0086] Likewise, when there are multiple terminal devices to be accessed, the data to be written into different terminal devices to be accessed may be different.

[0087] S402: The network access device sends a device data write request to the terminal device to be accessed.

[0088] Correspondingly, the terminal device to be accessed receives the device data write request sent by the network access device.

[0089] S403: The terminal device to be accessed saves the data to be written.

[0090] S404. The first terminal device sends a device data write response to the network access device in response to the device data write request.

[0091] Correspondingly, the network access device receives a device data write response sent by the first terminal device in response to the device data write request.

[0092] Among them, the first terminal device is any terminal device to be accessed, and the device data write response carries the device identification of the first terminal device and third indication information, and the third indication information is used to indicate whether the data to be written to the first terminal device is successfully written into the first terminal device.

[0093] S405. The network access device sends a device data reading response to the core network.

[0094] Reference Figure 5 As shown, in some embodiments, the access method of the terminal device provided in the embodiment of the present application further includes performing the following steps before receiving the device access request sent by the core network:

[0095] S501. The core network sends a paging request to a network access device.

[0096] Correspondingly, the network access device receives the paging request sent by the core network.

[0097] The paging request carries first indication information and second indication information, the first indication information is used to indicate a triggering cause, and the second indication information is used to indicate a terminal device to be accessed.

[0098] S502: The network access device determines a random access mode of a terminal device to be accessed.

[0099] In some embodiments, the random access method based on the number of interactions in the random access process can be divided into: 2-step random access and 4-step random access; based on whether the random access process requires a contention number, the random access method can be divided into: contention-free random access (Contention Free Random Access, CFRA) and contention-based random access (Contention Based Random Access, CBRA). Therefore, the random access method of any terminal device to be accessed is one of the following 4 types:

[0100] The first one: 2-step contention-based random access;

[0101] The second type: 2-step contention-free random access;

[0102] The third type: 4-step contention-based random access;

[0103] The fourth type: 4-step contention-free random access.

[0104] In some embodiments, the implementation method of the network access device determining the random access method of the terminal device to be accessed may include:

[0105] Determine whether the target success rate is greater than the threshold success rate and whether the target data volume is greater than the threshold data volume; wherein the target success rate is the success rate of sending random access preamble messages to terminal devices within the coverage area of ​​the network access device, and the target data volume is the data volume of the random access preamble message corresponding to the triggering cause indicated by the first indication information.

[0106] If the target success rate is greater than the threshold success rate and the target data volume is less than or equal to the threshold data volume, the random access method is determined to be 2-step random access; if the target success rate is less than or equal to the threshold success rate and / or the target data volume is greater than the threshold data volume, the random access method is determined to be 4-step random access.

[0107] In some embodiments, the implementation method of the network access device determining the random access mode of the terminal device to be accessed may also include:

[0108] Determine whether the number of terminal devices to be accessed is one, and whether the paging request carries a device identifier of each terminal device to be accessed;

[0109] If the number of the terminal device to be accessed is one, or the paging request carries the device identification of each terminal device to be accessed, the random access mode is determined to be CFRA;

[0110] If the number of the terminal devices to be accessed is not one and the paging request does not carry the device identification of each terminal device to be accessed, the random access mode is determined to be CBRA.

[0111] In the above step S502, if the network access device determines that the random access mode is contention-based random access (CBRA), the network access device performs the following step S503:

[0112] S503: The network access device sends a first paging message to the terminal device to be accessed.

[0113] Correspondingly, the terminal device to be accessed receives the first paging message sent by the network access device.

[0114] The first paging message carries the first indication information, the second indication information, a slot count parameter (Slot-Count Parameter, Q) and configuration information of the public uplink communication resources.

[0115] In the above step S502, if the network access device determines that the random access mode is contention-free random access CFRA, the network access device performs the following step S504:

[0116] S504: The network access device sends a second paging message to the terminal device to be accessed.

[0117] Correspondingly, the terminal device to be accessed receives the second paging message sent by the network access device.

[0118] The second paging message carries the first indication information, the second indication information and the configuration information of the dedicated uplink communication resources of each terminal device to be accessed.

[0119] Based on the above embodiments, the access method of the terminal device provided in the embodiments of the present application can also support the paging function of the terminal device. The paging message supports carrying the trigger reason, device identification, time slot technical parameters, etc., and can page a single terminal device, or page multiple terminal devices or a group of terminal devices at the same time.

[0120] Reference Figure 6 As shown, in some embodiments, the access method of the terminal device provided in the embodiment of the present application further includes performing the following steps before receiving the device access request sent by the core network:

[0121] S601: A network access device sends a capability reporting request to a terminal device to be accessed.

[0122] Correspondingly, the terminal device to be accessed receives the capability reporting request sent by the network access device.

[0123] In some embodiments, the network access device sends a capability reporting request to the terminal device to be accessed, including: the network access device broadcasts the capability reporting request carrying second indication information within the coverage area of ​​the network access device to send the capability reporting request to the terminal device to be accessed.

[0124] S602. The second terminal device sends a capability reporting response to the network access device.

[0125] Correspondingly, the network receiving device receives the capability reporting response sent by the second terminal device.

[0126] Among them, the second terminal device is any terminal device to be accessed, and the capability reporting response carries the device type of the second terminal device and fourth indication information, and the fourth indication information is used to indicate whether the second terminal device supports the frequency shift (Frequency Shift) function.

[0127] In some embodiments, the device type of the second terminal device may be: device type 1 (Device type 1) or device type 2a (Device type 2a) or device type 2b (Device type 2b).

[0128] Based on the above embodiments, the access method of the terminal device provided in the embodiments of the present application supports reporting of terminal device capabilities, so network access devices such as base stations / readers process different terminal devices according to the capabilities of the terminal devices.

[0129] In some embodiments, after the network access device receives the capability reporting response sent by the second terminal device, the method further includes: sending the capability reporting response to the core network.

[0130] In some embodiments, the access method of the terminal device provided by the present application further includes:

[0131] The downlink control information and downlink service information to be sent to the terminal device to be accessed are carried on the Reader Device Control-Traffic Channel (RDCTCH); the downlink control information and downlink service information on the RDCTCH are mapped to the Reader Device Shared Channel (RD-SCH); the downlink control information and downlink service information on the RD-SCH are mapped to the Physical Reader Device Channel (PRDCH) and sent to the terminal device to be accessed. Figure 7 As shown, RDCTCH 71 is used to simultaneously carry the downlink control information and downlink business data of the A-IoT service. The downlink control information and downlink business data carried by RDCTCH are mapped to RD-SCH 72; the downlink control information and downlink business data on RD-SCH 72 are mapped to PRDCH 73.

[0132] Compared with the New Radio (NR) wireless communication protocol, in which logical channels are divided into two groups: control channels and traffic channels, and control plane information is transmitted through control channels and user plane information is transmitted through traffic channels, the above embodiment carries both downlink control information and downlink business data of A-IoT through a downlink channel (RDCTCH), so the above embodiment can reduce the design complexity of the A-IoT downlink channel.

[0133] In some embodiments, the access method of the terminal device provided by the present application further includes:

[0134] The downlink control information that needs to be sent to the terminal device to be accessed is carried on the reader device control channel (Reader Device Control Channel, RDCCH); the downlink service information that needs to be sent to the terminal device to be accessed is carried on the reader device traffic channel (Reader Device Traffic Channel, RDTCH); the downlink control information on the RDCCH and the downlink service information on the RDTCH are mapped to the RD-SCH; the downlink control information and downlink service information on the RD-SCH are mapped to the PRDCH and sent to the terminal device to be accessed.

[0135] That is Figure 8 As shown, RDCCH 81 is used to carry the downlink control information of the A-IoT service, and RDTCH 82 is used to carry the downlink business data of the A-IoT service; the downlink control information carried by the RDCCH and the downlink business data carried by the RDTCH are both mapped to the RD-SCH 83; the downlink control information and downlink business data on the RD-SCH are mapped to the PRDCH 84.

[0136] Similar to the NR wireless communication protocol that carries control plane information and user plane information through two channels respectively, the above embodiments carry the downlink control information of A-IoT through RDCCH and carry the downlink service data of A-IoT through RDTCH respectively. Therefore, the above embodiments can realize efficient transmission and management of downlink services of A-IoT.

[0137] In some embodiments, the terminal device access method provided by the present application further includes: receiving uplink control information and uplink service information sent by the terminal device to be accessed through a physical device reader channel (Physical Device Reader Channel, PDRCH).

[0138] Among them, the uplink control information and uplink service information on the PDRCH channel are mapped by the Device Reader Shared Channel (RD-SCH), and the uplink control information and uplink service information on the DR-SCH are mapped by the Device Reader Control-Traffic Channel (DRCTCH).

[0139] That is Fig. 9As shown, DRCTCH 91 is used to simultaneously carry the uplink control information and uplink service data of the A-IoT service. The uplink control information and uplink service data carried by DRCTCH are mapped to DR-SCH 92; the downlink control information and downlink service data on DR-SCH 92 are mapped to PDRCH 93.

[0140] Compared with the New Radio (NR) wireless communication protocol, in which the logical channels are divided into two groups: a control channel and a service channel, and control plane information is transmitted through the control channel and user plane information is transmitted through the service channel, the above embodiment carries both the uplink control information and uplink service data of A-IoT through an uplink channel (DRCTCH), so the above embodiment can reduce the design complexity of the A-IoT uplink channel.

[0141] In some embodiments, the terminal device access method provided by the present application further includes: PDRCH receiving uplink control information and uplink service information sent by the terminal device to be accessed.

[0142] Among them, the uplink control information and uplink service information on the PDRCH channel are mapped by the device reader shared channel DR-SCH, the uplink control information on the DR-SCH is mapped by the device reader control channel (Device Reader Control Channel, DRCCH), and the uplink service information on the DR-SCH is mapped by the device reader service channel (Device Reader Traffic Channel, DRTCH).

[0143] That is Fig.10 As shown, DRCCH 101 is used to carry the uplink control information of the A-IoT service, and DRTCH 102 is used to carry the uplink service data of the A-IoT service; the downlink control information carried by DRCCH and the uplink service data carried by DRTCH are both mapped to DR-SCH 103; the uplink control information and uplink service data on DR-SCH are mapped to PDRCH 104.

[0144] Similar to the NR wireless communication protocol that carries control plane information and user plane information through two channels respectively, the above embodiments carry the uplink control information of A-IoT through DRCCH and carry the uplink service data of A-IoT through DRTCH respectively. Therefore, the above embodiments can realize efficient transmission and management of uplink services of A-IoT.

[0145] In some embodiments, reference Fig.11As shown, the air interface protocol stack of the terminal device includes: Non-Access Stratum (NAS) 111, Medium Access Control Layer (MAC) 112 and Physical Layer (PHY) 113; the air interface protocol stack of the network access device includes: Media Access Control Layer 114 and Physical Layer 115, and the core network air interface protocol stack includes: Non-Access Layer 116.

[0146] The media access control layer 114 of the network access device is used to transmit the media access control control unit between the network access device and the terminal device; the physical layer 115 of the network access device is used to create and manage the physical reader device channel PRDCH and the physical device reader channel PDRCH.

[0147] Considering the complexity, low cost and processing power limitation of A-IoT devices, the A-IoT user plane does not support the Service Data Adaptation Protocol (SDAP) / Packet Data Convergence Protocol (PDCP) / Radio Link Control (RLC) layer supported in the traditional New Radio (NR) protocol. The A-IoT protocol stack is divided into three layers: non-access layer, media access control layer and physical layer. Among them, the non-access layer only completes the security and authentication process of the device (Device) and does not support the registration, mobility management and other functions supported in the traditional NR. Based on the traditional MAC layer function, the media access control layer adds the control signaling of the media access control element (MAC CE) between the transmission base station / reader and the terminal device; the MAC layer in NR is enhanced so that the A-IoT MAC layer can support the transmission function of the high-level signaling of the A-IoT service. The physical layer supports PDRCH and PRDCH.

[0148] Reference Fig.12 As shown, some embodiments of the present application further provide a network access device 1200, and the network access device 1200 includes:

[0149] A receiving unit 121 is used to receive a device access request sent by a core network, where the device access request carries first indication information and second indication information, where the first indication information is used to indicate a triggering cause, and the second indication information is used to indicate a terminal device to be accessed;

[0150] The sending unit 122 is used to send a device access request to the terminal device to be accessed;

[0151] The receiving unit 121 is further configured to receive a device access response sent by the first terminal device in response to the device access request, the first terminal device being any terminal device to be accessed, and the device access response carrying a device identification of the first terminal device;

[0152] The sending unit 122 is further configured to send a device access response to the core network.

[0153] As an optional implementation of an embodiment of the present application, when the first indication information indicates to read data from the terminal device to be accessed, the device access request also carries identification information of the data to be read from the first terminal device, and the device access response also carries the data to be read from the first terminal device.

[0154] As an optional implementation of the embodiment of the present application, when the first indication information indicates to write data to the terminal device to be accessed, the device access request also carries the data to be written to the first terminal device, and the device access response also carries third indication information;

[0155] The third indication information is used to indicate whether the data to be written into the first terminal device is successfully written into the first terminal device.

[0156] As an optional implementation of the embodiment of the present application, the sending unit 122 is specifically used to broadcast the device access request to the coverage area of ​​the network access device, so as to send the device access request to the terminal device to be accessed.

[0157] As an optional implementation manner of the embodiment of the present application, the receiving unit 121 is also used to receive a paging request sent by the core network before receiving a device access request sent by the core network, the paging request carrying first indication information and second indication information; determine a random access mode of a terminal device to be accessed; the sending unit 122 is also used to send a first paging message to the terminal device to be accessed when the random access mode is CBRA, the first paging message carrying first indication information, second indication information, a time slot count parameter and configuration information of a common uplink communication resource; and send a second paging message to the terminal device to be accessed when the random access mode is CFRA, the second paging message carrying the first indication information, the second indication information and configuration information of dedicated uplink communication resources of each terminal device to be accessed.

[0158] As an optional implementation of the embodiment of the present application, the sending unit 122 is further configured to send a capability reporting request to the terminal device to be accessed before determining the random access mode of the terminal device to be accessed;

[0159] The receiving unit 121 is also used to receive a capability reporting response sent by a second terminal device, where the second terminal device is any terminal device to be accessed. The capability reporting response carries the device type of the second terminal device and fourth indication information, and the fourth indication information is used to indicate whether the second terminal device supports the frequency offset function.

[0160] As an optional implementation of the embodiment of the present application, the sending unit 122 is specifically used to broadcast a capability reporting request carrying the second indication information within the coverage area of ​​the network access device, so as to send the capability reporting request to the terminal device to be accessed.

[0161] As an optional implementation of the embodiment of the present application, the sending unit 122 is also used to carry the downlink control information and downlink service information that need to be sent to the terminal device to be accessed on the RDCTCH; map the downlink control information and downlink service information on the RDCTCH to the RD-SCH; map the downlink control information and downlink service information on the RD-SCH to the PRDCH and send them to the terminal device to be accessed.

[0162] As an optional implementation mode of the embodiment of the present application, the sending unit 122 is also used to carry the downlink control information that needs to be sent to the terminal device to be accessed on the RDCCH; carry the downlink service information that needs to be sent to the terminal device to be accessed on the RDTCH; map the downlink control information on the RDCCH and the downlink service information on the RDTCH to the RD-SCH; map the downlink control information and downlink service information on the RD-SCH to the PRDCH and send them to the terminal device to be accessed.

[0163] As an optional implementation of the embodiment of the present application, the sending unit 122 is further configured to receive uplink control information and uplink service information sent by the terminal device to be accessed through the PDRCH;

[0164] Among them, the uplink control information and uplink service information on the PDRCH channel are mapped by DR-SCH, and the uplink control information and uplink service information on the DR-SCH are mapped by DRCTCH.

[0165] As an optional implementation of the embodiment of the present application, the sending unit 122 receives uplink control information and uplink service information sent by the terminal device to be accessed through the physical device reader channel PDRCH;

[0166] Among them, the uplink control information and uplink service information on the PDRCH channel are mapped by DR-SCH, the uplink control information on DR-SCH is mapped by DRCCH, and the uplink service information on DR-SCH is mapped by DRTCH.

[0167] As an optional implementation of the embodiment of the present application, the air interface protocol stack of the network access device includes: a media access control layer and a physical layer;

[0168] The media access control layer is used to transmit the media access control unit between the network access device and the terminal device;

[0169] The physical layer is used to create and manage PRDCH and PDRCH.

[0170] The network access device provided in the embodiment of the present application can execute the access method of the terminal device provided in the above embodiment, and can achieve the same or similar effect. To avoid redundancy, it will not be described in detail here.

[0171] Some embodiments of the present application provide an electronic device. Fig.13 A schematic diagram of the structure of an electronic device provided in an embodiment of the present application, such as Fig.13 As shown, the electronic device provided in this embodiment includes: a memory 131 and a processor 132, the memory 131 is used to store computer programs, and the processor 132 is used to execute the access method of the terminal device provided in any of the above embodiments when executing the computer program.

[0172] Some embodiments of the present application also provide a computer-readable storage medium, on which a computer program is stored. When the computer program is executed by a computing device, the computing device implements the terminal device access method provided by any of the above embodiments.

[0173] Some embodiments of the present application also provide a chip, which includes a processor and a memory, wherein the memory is used to store programs or instructions that can be run on the processor, and the processor is used to execute the programs or instructions so that the access method of the terminal device in any of the above embodiments is executed.

[0174] Some embodiments of the present application further provide a computer program product, which, when executed on a computer, enables the computer to implement the terminal device access method of any of the above embodiments.

[0175] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

[0176] For the convenience of explanation, the above description has been made in conjunction with specific embodiments. However, the above exemplary discussion is not intended to be exhaustive or limit the embodiments to the specific forms disclosed above. Based on the above teachings, various modifications and variations can be obtained. The selection and description of the above embodiments are to better explain the principles and practical applications, so that those skilled in the art can better use the embodiments and various different variations of the embodiments suitable for specific use considerations.

Claims

1. A method for accessing a terminal device, characterized in that: Applied to a network access device, the method comprises: Receive a device access request sent by a core network, where the device access request carries first indication information and second indication information, where the first indication information is used to indicate a triggering cause, and the second indication information is used to indicate a terminal device to be accessed; Sending the device access request to the terminal device to be accessed; receiving a device access response sent by a first terminal device in response to the device access request, wherein the first terminal device is any terminal device to be accessed, and the device access response carries a device identification of the first terminal device; Sending the device access response to the core network.

2. The method according to claim 1, characterized in that When the first indication information indicates to read data from the terminal device to be accessed, the device access request also carries identification information of the data to be read from the first terminal device, and the device access response also carries the data to be read from the first terminal device.

3. The method according to claim 1, characterized in that When the first indication information indicates to write data to the terminal device to be accessed, the device access request also carries the data to be written to the first terminal device, and the device access response also carries third indication information; The third indication information is used to indicate whether the data to be written into the first terminal device is successfully written into the first terminal device.

4. The method according to claim 1, characterized in that The sending the device access request to the terminal device to be accessed includes: The device access request is broadcasted within the coverage area of ​​the network access device to send the device access request to the terminal device to be accessed.

5. The method according to claim 1, characterized in that Before receiving the device access request sent by the core network, the method further includes: receiving a paging request sent by the core network, where the paging request carries the first indication information and the second indication information; Determine a random access method for a terminal device to be accessed; When the random access mode is contention-based random access (CBRA), sending a first paging message to the terminal device to be accessed, where the first paging message carries the first indication information, the second indication information, a timeslot count parameter, and configuration information of a common uplink communication resource; When the random access mode is contention-free random access CFRA, a second paging message is sent to the terminal device to be accessed, and the second paging message carries the first indication information, the second indication information and configuration information of dedicated uplink communication resources of each terminal device to be accessed.

6. The method according to claim 5, characterized in that Before determining the random access mode of the terminal device to be accessed, the method further includes: Send a capability reporting request to the terminal device to be accessed; Receive a capability reporting response sent by a second terminal device, where the second terminal device is any terminal device to be accessed, and the capability reporting response carries the device type of the second terminal device and fourth indication information, where the fourth indication information is used to indicate whether the second terminal device supports a frequency offset function.

7. The method according to claim 6, characterized in that The sending of a capability reporting request to the terminal device to be accessed includes: A capability reporting request carrying the second indication information is broadcast within the coverage area of ​​the network access device to send the capability reporting request to the terminal device to be accessed.

8. The method according to any one of claims 1 to 7, characterized in that: The method further comprises: The downlink control information and downlink service information to be sent to the terminal device to be accessed are carried on the reader device control service channel RDCTCH; Mapping the downlink control information and the downlink service information on the RDCTCH to the reader device shared channel RD-SCH; The downlink control information and the downlink service information on the RD-SCH are mapped to a physical reader device channel PRDCH and sent to a terminal device to be accessed.

9. The method according to any one of claims 1 to 7, characterized in that: The method further comprises: The downlink control information to be sent to the terminal device to be accessed is carried on the reader device control channel RDCCH; The downlink service information to be sent to the terminal device to be accessed is carried on the reader device service channel RDTCH; Mapping the downlink control information on the RDCCH and the downlink service information on the RDTCH to a reader device shared channel RD-SCH; The downlink control information and the downlink service information on the RD-SCH are mapped to a physical reader device channel PRDCH and sent to a terminal device to be accessed.

10. The method according to any one of claims 1 to 7, characterized in that: The method further comprises: Receiving uplink control information and uplink service information sent by the terminal device to be accessed through the physical device reader channel PDRCH; The uplink control information and the uplink service information on the PDRCH channel are mapped by a device reader shared channel DR-SCH, and the uplink control information and the uplink service information on the DR-SCH are mapped by a device reader control service channel DRCTCH.

11. The method according to any one of claims 1 to 7, characterized in that: The method further comprises: Receiving uplink control information and uplink service information sent by the terminal device to be accessed through the physical device reader channel PDRCH; Among them, the uplink control information and the uplink service information on the PDRCH channel are mapped by DR-SCH, the uplink control information on the DR-SCH is mapped by the device reader control channel DRCCH, and the uplink service information on the DR-SCH is mapped by the device reader service channel DRTCH.

12. The method according to any one of claims 1 to 7, characterized in that: The air interface protocol stack of the network access device includes: a media access control layer and a physical layer; The media access control layer is used to transmit the media access control unit between the network access device and the terminal device; The physical layer is used to create and manage PRDCH and PDRCH.

13. A network access device, characterized in that: include: A receiving unit, configured to receive a device access request sent by a core network, wherein the device access request carries first indication information and second indication information, wherein the first indication information is used to indicate a triggering cause, and the second indication information is used to indicate a terminal device to be accessed; A sending unit, used for sending the device access request to the terminal device to be accessed; The receiving unit is further configured to receive a device access response sent by a first terminal device in response to the device access request, wherein the first terminal device is any terminal device to be accessed, and the device access response carries a device identification of the first terminal device; The sending unit is further configured to send the device access response to the core network.

14. An electronic device, characterized in that: include: A memory and a processor, wherein the memory stores a computer program, and the processor is configured to implement the access method of the terminal device according to any one of claims 1 to 12 when executing the computer program.

15. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores a computer program, and when the computer program is executed by a computing device, the computing device implements the terminal device access method according to any one of claims 1 to 12.

16. A chip, characterized in that: The chip includes a processor and a memory, the memory is used to store programs or instructions that can be run on the processor, and the processor is used to execute the program or instructions so that the access method of the terminal device as described in any one of claims 1 to 12 is executed.

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