Wireless communication method, device, and storage medium

Abstract

The present application provides a wireless communication method, a device, and a storage medium. The method comprises: a terminal device receives a first paging message, the first paging message being used for determining first information, and the first information being used for the terminal device to receive downlink transmission of a core network device.

Description

Wireless communication method, device, and storage medium Technical Field

[0001] The embodiments of the present application relate to the field of mobile communication technologies, and in particular to a wireless communication method and device, and a storage medium. Background Art

[0002] The new Ambient IoT refers to a new type of wireless communication that is largely self-sufficient by using energy from the environment. It is an ecosystem for connecting and automating a large number of objects and devices, each of which is connected using low-cost, self-powered sensor nodes to form a wireless sensor network. Ambient IoT relies on energy harvesting as a key power supply mechanism, eliminating the need for cables to power or charge batteries in Ambient IoT (A-IoT) devices. Any radio signals propagating around an A-IoT device can be used to generate electricity.

[0003] In related technologies, A-IOT devices need to receive broadcast messages and perform random access based on the system information carried in the received broadcast messages in order to receive downlink data sent by the core network.

[0004] Summary of the Invention

[0005] Embodiments of the present application provide a wireless communication method and device, and a storage medium.

[0006] The wireless communication method provided in the embodiment of the present application includes:

[0007] The terminal device receives a first paging message, where the first paging message is used to determine first information, and the first information is used by the terminal device to receive downlink transmission from a core network device.

[0008] The wireless communication method provided in the embodiment of the present application includes:

[0009] The base station sends a first paging message, where the first paging message is used to determine first information, and the first information is used by the terminal device to receive downlink transmission from the core network device.

[0010] The terminal device provided in the embodiment of the present application includes:

[0011] The first communication unit is configured to receive a first paging message, where the first paging message is used to determine first information, and the first information is used by the terminal device to receive downlink transmission from a core network device.

[0012] The base station provided in the embodiment of the present application includes:

[0013] The second communication unit is configured to send a first paging message, where the first paging message is used to determine first information, and the first information is used by the terminal device to receive downlink transmission from the core network device.

[0014] The communication device provided in an embodiment of the present application may be a terminal device or a base station in the above-mentioned solution, and the communication device includes a processor and a memory. The memory is used to store a computer program, and the processor is used to call and execute the computer program stored in the memory to perform the above-mentioned wireless communication method.

[0015] The chip provided in the embodiment of the present application is used to implement the above-mentioned wireless communication method.

[0016] Specifically, the chip includes: a processor, which is used to call and run a computer program from a memory, so that a device equipped with the chip executes the above-mentioned wireless communication method.

[0017] The computer-readable storage medium provided in an embodiment of the present application is used to store a computer program, which enables a computer to execute the above-mentioned wireless communication method.

[0018] The computer program product provided in the embodiments of the present application includes computer program instructions, which enable a computer to execute the above-mentioned wireless communication method.

[0019] The computer program provided in the embodiment of the present application, when executed on a computer, enables the computer to execute the above-mentioned wireless communication method.

[0020] Through the above technical solution, the base station carries the first information for the terminal device to receive downlink transmission in the first paging message sent to the terminal device, so that the terminal device receives the first information when it is in a non-connected state, and then receives the downlink transmission sent by the core network device based on the received first information. Before the terminal device receives the downlink transmission, there is no need for the terminal device to perform a random access process with the base station, thereby reducing the air interface delay overhead and reducing the power consumption of the A-IOT device. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0022] FIG1 is a schematic diagram of an application scenario of an embodiment of the present application;

[0023] FIG2 is a schematic diagram of an optional topological structure of an A-IOT provided in an embodiment of the present application;

[0024] FIG3 is a schematic diagram of an optional topological structure of an A-IOT provided in an embodiment of the present application;

[0025] FIG4 is a schematic diagram of an optional topological structure of an A-IOT provided in an embodiment of the present application;

[0026] FIG5 is a schematic diagram of an optional flow chart of a wireless communication method provided in an embodiment of the present application;

[0027] FIG6 is a schematic diagram of an optional flow chart of a wireless communication method provided in an embodiment of the present application;

[0028] FIG7 is a schematic diagram of an optional flow chart of a wireless communication method provided in an embodiment of the present application;

[0029] FIG8 is a schematic diagram of an optional flow chart of a wireless communication method provided in an embodiment of the present application;

[0030] FIG9 is a schematic diagram of an optional flow chart of a wireless communication method provided in an embodiment of the present application;

[0031] FIG10 is a schematic diagram of an optional flow chart of a wireless communication method provided in an embodiment of the present application;

[0032] FIG11 is a schematic diagram of an optional flow chart of a wireless communication method provided in an embodiment of the present application;

[0033] FIG12 is a schematic diagram of an optional flow chart of a wireless communication method provided in an embodiment of the present application;

[0034] FIG13 is a schematic diagram of an optional flow chart of a wireless communication method provided in an embodiment of the present application;

[0035] FIG14 is a schematic diagram of an optional logical framework of a wireless communication method provided in an embodiment of the present application;

[0036] FIG15 is a schematic diagram of an optional flow chart of a wireless communication method provided in an embodiment of the present application;

[0037] FIG16 is a schematic diagram of an optional flow chart of a wireless communication method provided in an embodiment of the present application;

[0038] FIG17 is a schematic diagram of an optional flow chart of a wireless communication method provided in an embodiment of the present application;

[0039] FIG18 is a schematic diagram of an optional structure of a terminal device provided in an embodiment of the present application;

[0040] FIG19 is a schematic diagram of an optional structure of a base station provided in an embodiment of the present application;

[0041] FIG20 is a schematic structural diagram of a communication device provided in an embodiment of the present application;

[0042] FIG21 is a schematic structural diagram of a chip according to an embodiment of the present application;

[0043] Figure 22 is a schematic block diagram of a communication system provided in an embodiment of the present application. DETAILED DESCRIPTION

[0044] The following will describe the technical solutions in the embodiments of this application in conjunction with the drawings in the embodiments of this application. Obviously, the described embodiments are part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0045] Communication system scenarios include terrestrial networks (TNs) and NTNs. NTNs typically use satellite communications to provide communication services to terrestrial users. Currently, NTN systems include NR-NTN and IoT-NTN, and other NTN systems may be added in the future.

[0046] Figure 1 is a schematic diagram of the architecture of a communication system provided by an embodiment of the present application. As shown in Figure 1, communication system 100 may include terminal device 110 and network device 120. Network device 120 may communicate with terminal device 110 via an air interface. Multi-service transmission is supported between terminal device 110 and network device 120.

[0047] It should be understood that the embodiments of the present application are only illustrative of the communication system 100, but the embodiments of the present application are not limited thereto. That is, the technical solutions of the embodiments of the present application can be applied to various communication systems, such as: Long Term Evolution (LTE) system, LTE Time Division Duplex (TDD), Universal Mobile Telecommunication System (UMTS), Internet of Things (IoT) system, Narrow Band Internet of Things (NB-IoT) system, enhanced Machine-Type Communications (eMTC) system, 5G communication system (also known as New Radio (NR) communication system), or future communication systems.

[0048] In the communication system 100 shown in Figure 1, the network device 120 may be an access network device, i.e., a base station, that communicates with the terminal device 110. The access network device may provide communication coverage for a specific geographical area and may communicate with the terminal device 110 (e.g., UE) located within the coverage area.

[0049] The network device 120 can be an evolved base station (eNB or eNodeB) in a Long Term Evolution (LTE) system, or a Next Generation Radio Access Network (NG RAN) device, or a base station (gNB) in an NR system, or a wireless controller in a Cloud Radio Access Network (CRAN), or the network device 120 can be a relay station, an access point, a vehicle-mounted device, a wearable device, a hub, a switch, a bridge, a router, or a network device in a future evolved Public Land Mobile Network (PLMN), etc.

[0050] The terminal device 110 may be any terminal device, including but not limited to a terminal device connected to the network device 120 or other terminal devices by wire or wireless connection.

[0051] For example, the terminal device 110 may refer to an access terminal, user equipment (UE), a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, a remote terminal, a mobile device, a user terminal, a terminal, a wireless communication device, a user agent, or a user apparatus. An access terminal may be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, an IoT device, a satellite handheld terminal, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), a handheld device with wireless communication capabilities, a computing device or other processing device connected to a wireless modem, an in-vehicle device, a wearable device, a terminal device in a 5G network, or a terminal device in a future evolution network, etc.

[0052] The terminal device 110 can be used for device-to-device (D2D) communication.

[0053] The wireless communication system 100 may further include a core network device 130 for communicating with the base station. The core network device 130 may be a 5G core network (5G Core, 5GC) device, such as an Access and Mobility Management Function (AMF), an Authentication Server Function (AUSF), a User Plane Function (UPF), or a Session Management Function (SMF). Optionally, the core network device 130 may also be an Evolved Packet Core (EPC) device of an LTE network, such as a Session Management Function + Core Packet Gateway (SMF+PGW-C) device. It should be understood that SMF+PGW-C can simultaneously implement the functions that can be implemented by SMF and PGW-C. During the network evolution process, the above-mentioned core network device may also be called other names, or a new network entity may be formed by dividing the functions of the core network, which is not limited in the embodiments of the present application.

[0054] The functional units in the communication system 100 may also establish connections and implement communication via next generation (NG) network interfaces.

[0055] For example, the terminal device establishes an air interface connection with the access network device through the Uu interface for transmitting user plane data and control plane signaling; the terminal device can establish a control plane signaling connection with the AMF through the NG interface 1 (referred to as N1); the access network device, such as the next generation wireless access base station (gNB), can establish a user plane data connection with the UPF through the NG interface 3 (referred to as N3); the access network device can establish a control plane signaling connection with the AMF through the NG interface 2 (referred to as N2); the UPF can establish a control plane signaling connection with the SMF through the NG interface 4 (referred to as N4); the UPF can exchange user plane data with the data network through the NG interface 6 (referred to as N6); the AMF can establish a control plane signaling connection with the SMF through the NG interface 11 (referred to as N11); the SMF can establish a control plane signaling connection with the PCF through the NG interface 7 (referred to as N7).

[0056] Figure 1 exemplarily shows a base station, a core network device and two terminal devices. Optionally, the wireless communication system 100 may include multiple base station devices and each base station may include other numbers of terminal devices within its coverage area, which is not limited in this embodiment of the present application.

[0057] It should be noted that Figure 1 is merely an example of a system applicable to this application. Of course, the methods described in the embodiments of this application can also be applied to other systems. Furthermore, the terms "system" and "network" are often used interchangeably herein. The term "and / or" herein simply describes an association relationship between associated objects, indicating that three possible relationships exist. For example, "A and / or B" can represent: A exists alone, A and B exist simultaneously, or B exists alone. Furthermore, the character " / " generally indicates that the associated objects are in an "or" relationship. It should also be understood that the "indication" mentioned in the embodiments of this application can be a direct indication, an indirect indication, or an indication of an association relationship. For example, "A indicates B" can mean that A directly indicates B, for example, B can obtain information through A; it can also mean that A indirectly indicates B, for example, A indicates C, and B can obtain information through C; or it can mean that A and B have an association relationship. It should also be understood that the "correspondence" mentioned in the embodiments of this application can mean that there is a direct or indirect correspondence between two objects, or that there is an association relationship between the two objects, or a relationship between an indicator and the indicated, a configuration and the configured, and so on. It should also be understood that the “predefined” or “predefined rules” mentioned in the embodiments of the present application can be implemented by pre-saving corresponding codes, tables or other methods that can be used to indicate relevant information in a device (for example, including a terminal device and a base station), and the present application does not limit its specific implementation method. For example, predefined can refer to a definition in a protocol. It should also be understood that in the embodiments of the present application, the “protocol” may refer to a standard protocol in the field of communications, such as an LTE protocol, an NR protocol, and related protocols used in future communication systems, and the present application does not limit this.

[0058] To facilitate understanding of the technical solutions of the embodiments of the present application, the relevant technologies of the embodiments of the present application are described below. The following relevant technologies can be arbitrarily combined with the technical solutions of the embodiments of the present application as optional solutions, and they all fall within the protection scope of the embodiments of the present application.

[0059] The Ambient Internet of Things (AIoT) refers to a new type of wireless communication that is largely self-sufficient by using energy from the environment. It is an ecosystem for connecting and automating a large number of objects and devices, each of which is connected to form a wireless sensor network using low-cost, self-powered sensor nodes.

[0060] As one of the key mechanisms for powering the Ambient IoT, energy harvesting is relied upon, eliminating the need for cables to power or recharge batteries in mobile devices and smart objects. Vibrations from equipment, machinery, and buildings, as well as propagation of radio signals in the surrounding environment, can be used to generate electricity.

[0061] In related technologies, the topology of A-IOT in 5G networks includes:

[0062] Topology 1, as shown in Figure 2, shows direct, bidirectional communication between an A-IoT device and a base station. Communications between the base station and the A-IoT device include A-IoT data and / or signaling. This topology makes it possible for the base station to send data to the A-IoT device different from what the base station receives from the A-IoT device.

[0063] Topology 2, as shown in Figure 3, shows that an A-IoT device communicates indirectly with a base station through an intermediate node. In this topology, the intermediate node can be a relay node, IAB node, or repeater node, acting as an A-IoT device. The intermediate node controls the transmission of A-IoT data and / or signaling between the A-IoT device and the base station.

[0064] Topology 3, as shown in Figure 4, an A-IOT device transmits data or signaling to a base station and receives data or signaling from an auxiliary node; or an A-IOT device transmits data or signaling to an auxiliary node and receives data or signaling from a base station. In this topology, the auxiliary node can be a relay node, an IAB node, a repeater, or the like, acting as an A-IOT device.

[0065] A-IOT involves the following two scenarios:

[0066] Indoor scenario based on topology 1, where the base station is located indoors;

[0067] Based on the scenario of topology 2 and the intermediate node being a UE, the base station is located outdoors and the A-IOT device is located indoors.

[0068] Types of A-IOT devices include:

[0069] Type 1: 1μW peak power consumption with energy storage, an initial sampling frequency offset (SFO) of up to 10X ppm, and no DL or UL amplification in the device. The device's UL transmission is backscattered on an externally provided carrier.

[0070] Type II: Greater than a few hundred μW peak power consumption, with energy storage, initial (SFO) up to 10X ppm, and in-device DL and / or UL amplification. The device's UL transmission can be generated internally or backscattered on an externally provided carrier.

[0071] Paging in R16

[0072] In related technologies, the UE is always paged by the network using the 5G S-Temporary Mobile Subscription Identifier (NG-5G-S-TMSI), which is assigned to the UE by the AMF during the initial access process.

[0073] Information related to paging frames and paging occasions is broadcast in the system information block SIB1, and is indicated in the downlink configuration common SIB (downlinkConfigCommonSIB) of the serving cell configuration common SIB (ServingCellConfigCommonSIB) of SIB1, where downlinkConfigCommonSIB includes the following information: physical control channel configuration (PCCH-Config), paging cycle (PagingCycle) and paging frame offset (nAndPagingFrameOffset).

[0074] The information element ServingCellConfigCommonSIB is used to configure the cell-specific parameters of the UE serving cell in SIB1, and the information element downlinkConfigCommonSIB includes the SIB for common downlink parameter configuration.

[0075] The information related to the paging PDCCH monitoring occasion (of each PO) is broadcast in the first PDCCCH monitoring occasion (firstPDCCH-MonitoringOccasionOfPO) of the field PO in the information element PDCCH common configuration (PDCCH-ConfigCommon) of SIB1.

[0076] Upon receiving a DCI addressed to a Paging Record New Temporary Identity (P-RNTI), the UE will attempt to find out whether any of the paging records (maximum number of 32) in the paging message matches its own ID.

[0077] Traditional paging in R17

[0078] The Paging Early Indication (PEI) before each Discontinuous Reception (DRX) cycle is notified by the network to the UE before its paging occasion (PO) to determine whether it must monitor for paging messages to save power. Without EPI, the UE can sleep until it needs to perform intra-frequency measurements.

[0079] The PEI is indicated by DCI or a reference signal (eg, a secondary synchronization signal).

[0080] The ID of the subgroup of UEs required to listen to paging messages can also be carried in the PEI.

[0081] The subgroup ID information is allocated by the AMF using NAS signaling or by the gNB through the SIB.

[0082] PEI configuration related information is transmitted through the Scheduling Block (SB) 1, including: PEI search space, DCI2_7 information, SS index, UE based subgroup information, etc.

[0083] The UE notifies the network of the PEI and subgroup support capabilities in the registration request, and the 5G core network notifies the network of the supported core network subgroups in the registration acceptance.

[0084] In related technologies, when the core network sends signaling data to the terminal device, downlink signaling or downlink data can be carried in message 3 or message B during the random access process. However, this process requires the terminal device to first receive the broadcast message and then perform the random access process. Before the terminal device receives the data from the core network device, complex signaling interaction is required, which makes the air interface delay overhead relatively large. For the A-IOT scenario where many A-IOT devices are deployed, it also seriously affects the power consumption of the A-IOT devices.

[0085] To facilitate understanding of the technical solutions of the embodiments of the present application, the technical solutions of the present application are described in detail below through specific embodiments. The above related technologies can be combined arbitrarily with the technical solutions of the embodiments of the present application as optional solutions, and all of them fall within the scope of protection of the embodiments of the present application. The embodiments of the present application include at least part of the following contents.

[0086] An embodiment of the present application provides a wireless communication method, as shown in FIG5 , including:

[0087] S501. A terminal device receives a first paging message sent, where the first paging message is used to determine first information, and the first information is used by the terminal device to receive downlink transmission from a core network device.

[0088] An embodiment of the present application provides a wireless communication method, as shown in FIG6 , including:

[0089] S601. The base station sends a first paging message, where the first paging message is used to determine first information, and the first information is used by the terminal device to receive downlink transmission from a core network device.

[0090] An embodiment of the present application provides a wireless communication method, as shown in FIG7 , including:

[0091] S701. A base station sends a first paging message to a terminal device, where the first paging message is used to determine first information, and the first information is used by the terminal device to receive downlink transmission from a core network device.

[0092] Next, the wireless communication method shown in FIG. 5 , FIG. 6 or FIG. 7 will be described.

[0093] When a downlink transmission needs to be sent to a terminal device, the base station sends a first paging message to the terminal device, and initiates paging to the terminal device through the first paging message. The first paging message includes first information, and the first information is used by the terminal device to receive the downlink transmission of the core network device. The downlink transmission may include downlink control information (DCI) and / or downlink data (DL data).

[0094] When a terminal device in a non-connected state monitors a first paging message, it receives the first paging message sent by a network device, parses the first paging message, determines the first information, and receives the downlink transmission of the core network based on the first information.

[0095] It is understandable that the terminal device may be an A-IOT device, which may also be called a tag device or an A-IOT tag.

[0096] In an embodiment of the present application, the base station may send a first paging message to the terminal device after determining that the terminal device is in its coverage area and there is a downlink transmission that needs to be sent to the terminal device.

[0097] In an embodiment of the present application, a terminal device may be located on a transported mobile device such as a car, a package, or a packaging box. After the mobile device enters the spatial region where a base station is located, a server in the spatial region determines that the terminal device has entered the coverage area of ​​the base station based on the mobile device's entry. A binding relationship may exist between the terminal device and the mobile device.

[0098] It is understandable that the first paging message may be a paging message for a terminal device, or a paging message for a first terminal device group including multiple terminal devices. In the case where the first paging message is a paging message for the first terminal device group, multiple terminal devices in the first terminal device group receive the first paging message, and each terminal device receives the downlink transmission of the core network based on the first information carried in the received first paging message. At this time, different terminal devices in the first terminal device group can receive the same downlink transmission based on the first information.

[0099] In the wireless communication method provided in the embodiment of the present application, the base station carries first information for the terminal device to receive downlink transmission in the first paging message sent to the terminal device, so that the terminal device can receive the first information when it is in a non-connected state, and receives the downlink transmission sent by the core network device based on the first information in the non-connected state. Before the terminal device receives the downlink transmission, the terminal device does not need to switch from the non-connected state to the connected state. Therefore, there is no need for the terminal device to perform a random access process with the base station, thereby reducing the delay overhead of the air interface and reducing the power consumption of the A-IOT device.

[0100] In some embodiments, the first information includes one or more of the following:

[0101] a first identifier, where the first identifier is used to decode the downlink transmission;

[0102] First configuration information, where the first configuration information is used to determine a time-frequency resource range for the downlink transmission.

[0103] The first identifier is an identifier for scrambling the downlink channel carrying the downlink transmission. The base station scrambles the downlink channel carrying the downlink transmission based on the first identifier, and the terminal device descrambles the downlink channel carrying the downlink transmission based on the first identifier, thereby decoding the downlink transmission.

[0104] In some embodiments, the first identifier includes:

[0105] Group Radio Network Temporary Identifier (G-RNTI) or Cell Radio Network Temporary Identifier C-RNTI.

[0106] It is understandable that if the first identifier is G-RNTI, the G-RNTI is the RNTI for the first terminal device group allocated to the first terminal device group where the terminal device is located, and the terminal devices in the first terminal device group can respectively decode the downlink transmission based on the G-RNTI.

[0107] It is understandable that if the first identifier is a C-RNTI, the C-RNTI is an RNTI for the terminal device allocated to the terminal device, and the terminal device can decode the downlink transmission based on the C-RNTI.

[0108] For the first configuration information, the base station sends downlink transmission within the time-frequency resource range determined by the first configuration information, and the terminal device searches for downlink transmission within the time-frequency resource range determined by the first configuration information, thereby realizing the transmission of downlink transmission from the base station to the terminal device.

[0109] In some embodiments, if the first information does not include the first configuration information, the time-frequency resource range of the downlink transmission is based on the first configuration information included in the system information block SIB1.

[0110] In an embodiment of the present application, when the first information includes the first configuration information, the terminal device determines the time-frequency resource range of the downlink transmission based on the first configuration information included in the first information; when the first information does not include the first configuration information, the terminal device determines the time-frequency resource range of the downlink transmission based on the first configuration information included in SIB1.

[0111] In some embodiments, the first configuration information includes:

[0112] The second information is group-specific or terminal device-specific, and the second information includes: control resource set configuration information and / or search space configuration information.

[0113] The group-specific second information can be understood as second information for the first terminal device group or dedicated to the first terminal device group. Here, the group-specific second information can be described as a group-specific control resource set (CORSET) configuration and a search space configuration.

[0114] The second information specific to the terminal device can be understood as second information targeted at the terminal device or dedicated to the terminal device. Here, the second information specific to the terminal device can be described as a terminal device-specific (UE specific) CORSET configuration and search space configuration.

[0115] The first configuration information in SIB1 may be understood as the default second information in SIB1, such as Type-0 CORSET configuration and Type0 PDCCH Search space.

[0116] In some embodiments, the first paging message includes a second identifier, and the second identifier is an identifier of the terminal device or an encrypted identifier.

[0117] The base station carries a second identifier in the first paging message sent, which is used to indicate that the first paging message is a paging message sent to the terminal device or the first terminal device group. The terminal device uses the second identifier as the paging identifier to initiate paging to the terminal device. The second identifier is the identifier of the terminal device (UE ID) or the encrypted identifier of the terminal device (encrypted UE ID).

[0118] The terminal device uses the second identifier as the paging terminal device identifier in the paging record. When the terminal device monitors the first paging message, it matches the paging identifier carried in the first paging message with the paging terminal device identifier in the paging record of the terminal device. When both are the second identifier, it is determined that the paging identifier carried in the first paging message and the paging terminal device identifier in the paging record of the terminal device are the same, and then it is determined that the first paging message sent by the base station is the paging message sent to the current terminal device.

[0119] It is understandable that the second identifier may be an identifier dedicated to the terminal device (personal ID) or an identifier dedicated to the first terminal device group (group ID).

[0120] When the second identifier is a personal ID, only the terminal device recognizes that the first paging message is a paging message sent to itself. When the second identifier is a group ID, multiple terminal devices in the first terminal device recognize that the first paging message is a paging message sent to themselves.

[0121] In the embodiment of the present application, the base station uses the identifier of the terminal device to initiate paging to the terminal device, and there is no need for the network side to allocate a paging identifier to the terminal device.

[0122] In some embodiments, if the second identifier is an encrypted identifier of the terminal device, the second identifier is obtained by calculating the identifier of the terminal device using a security algorithm.

[0123] The encrypted identifier is calculated using a security algorithm on the UE ID.

[0124] In some embodiments, the encrypted identifier is calculated using a security algorithm on information such as UE ID, cell ID, and time.

[0125] In some embodiments, the second identifier is pre-stored in the terminal device and the core network device.

[0126] In the embodiment of the present application, the UE ID may be stored by the server of the terminal device and the core network device respectively. For the terminal device, the UE ID may be set in the terminal device when it leaves the factory.

[0127] If the second identifier is an encrypted UE ID, the terminal device deduces the UE ID based on a security algorithm to obtain the encrypted UE ID, and the core network device can deduce the UE ID based on the same security algorithm to obtain the encrypted UE ID.

[0128] The security algorithm used to deduce the encrypted UE ID may be pre-set or protocol-defined.

[0129] It is understandable that the second identifier is pre-stored in the terminal device and the core network device, and the terminal device can receive the first paging message with the paging identifier as the second identifier sent by the base station based on the second identifier without going through the registration process.

[0130] In the embodiment of the present application, the UE ID, i.e., the paging UE ID, can be a factory-set ID for the terminal device, or can be derived from the factory-set ID, such as by using a security algorithm. The paging UE ID is stored separately by the terminal device and the network server. The core network device can obtain the UE ID of the terminal device entering the base station's coverage area in advance when the terminal device enters the physical space where the base station's coverage area is located.

[0131] In the embodiment of the present application, when the second identifier is pre-stored in the terminal device and the core network device, the method, as shown in FIG8 , further includes:

[0132] S801. The base station receives the second identifier sent by the core network device.

[0133] When the core network device stores the second identifier, the core network device sends the second identifier to the base station, so that the base station can obtain the second identifier and send the first stored message based on the second identifier to page the terminal device.

[0134] If the second identifier sent by the core network device to the base station is an unencrypted identifier of the terminal device, the base station may calculate the encrypted identifier based on the UE ID using a security algorithm.

[0135] In some embodiments, the condition that the first paging message includes the first information includes one of the following:

[0136] Condition 1: The downlink transmission does not require protection;

[0137] Condition 2: The security level of the downlink transmission is lower than the set security level.

[0138] The information transmitted in the first paging message is sent in plain text and may involve encrypted data (neither the paging channel nor the paging message is encrypted). Therefore, the security of the first information transmitted in the first paging message cannot be guaranteed. In an embodiment of the present application, when the base station determines that the downlink transmission does not require protection, that is, security protection or the security level of the downlink transmission is lower than the set security level, the base station carries the first information in the first paging message. When it is determined that the security level of the downlink transmission is higher than or equal to the set security level, the first information is not carried in the first paging message.

[0139] It is understandable that, when the first paging message does not carry the first information, it may carry the second identifier, so that the terminal device can identify that the first paging message is a paging message sent to itself.

[0140] In some embodiments, the base station receives indication information sent by the core network device, where the indication information is used to indicate a security level of the downlink transmission.

[0141] Before sending the first paging message, the terminal device interacts with the core network device to obtain indication information indicating the security level of the downlink data.

[0142] It is understandable that the core network device can actively send indication information indicating the security level of the current downlink transmission to the base station, or the base station can request the security level to the core network device, so that the core network passively sends indication information to the base station.

[0143] In some embodiments, the core network device may be an AMF.

[0144] In an embodiment of the present application, when the base station determines that the downlink transmission of the core network does not require protection or the security level requirement is low, the base station carries the first information in the first paging message to avoid the first information corresponding to the downlink transmission with a high security level requirement from being leaked when transmitted in the first paging message, thereby improving data security.

[0145] In some embodiments, based on FIG5 , as shown in FIG9 , the method further includes:

[0146] S901. The terminal device receives the downlink transmission based on the first information.

[0147] In some embodiments, based on FIG6 , as shown in FIG10 , the method further includes:

[0148] S1001. The base station sends the downlink transmission to the terminal device based on the first information.

[0149] In some embodiments, based on FIG. 7 , as shown in FIG. 11 , the method further includes:

[0150] S1101. The base station sends the downlink transmission to the terminal device, wherein the downlink transmission is sent based on the first information.

[0151] The base station sends a downlink transmission to the terminal device based on the first information, and the terminal device receives the first downlink transmission based on the first information, thereby realizing the interaction of the downlink transmission from the base station to the terminal device.

[0152] In some embodiments, the method further comprises:

[0153] The base station receives the downlink transmission sent by the core network device.

[0154] Before sending downlink transmission to the terminal device, the base station receives the downlink transmission sent by the core network device.

[0155] Optionally, the second identifier and the downlink transmission are sent to the base station together, so that the base station associates the downlink transmission with the second identifier and determines that the downlink transmission is sent to one or more terminal devices identified by the second identifier.

[0156] In some embodiments, if the security level of the downlink transmission is higher than or equal to the set security level, the terminal device receives the downlink transmission via a random access message sent by the base station.

[0157] In some embodiments, if the security level of the downlink transmission is higher than or equal to the set security level, the base station sends the downlink transmission to the terminal device by sending a random access message.

[0158] In an embodiment of the present application, when the security level of the downlink transmission is higher than or equal to the set security level, the terminal device and the base station adopt a fallback mechanism to perform a random access process. During the random access process, the base station sends a downlink transmission to the terminal device by sending a random access message.

[0159] Optionally, the random access message used to send downlink transmission includes: message 4 in a four-step random access process or message B in a two-step random access process.

[0160] It is understandable that when the security level of the downlink transmission is higher than or equal to the set security level, the first paging message sent by the base station to the terminal device does not include the first information but only includes the second identifier, and the terminal device and the base station perform a random access process.

[0161] The wireless communication method provided in the embodiments of the present application can be applied to scenarios including but not limited to the following:

[0162] Scenario 1: Low security level requirements

[0163] In scenario one, the low security level requirement can be understood as downlink transmission not requiring protection or the security level being lower than the set security level.

[0164] The wireless communication method provided in an embodiment of the present application, as shown in FIG12 , includes:

[0165] S1201. The base station sends a first paging message to the terminal device.

[0166] The first paging message includes the second identifier and the first information.

[0167] S1202. The terminal device receives downlink transmission based on the first information.

[0168] Scenario 2: High security level requirements

[0169] In scenario 2, the high security level requirement can be understood as the security level of downlink transmission being higher than or equal to the set security level.

[0170] The wireless communication method provided in an embodiment of the present application, as shown in FIG13 , includes:

[0171] S1301. The base station sends a second paging message to the terminal device.

[0172] The second paging message includes the first information.

[0173] S1302. The terminal device sends message 1 to the base station.

[0174] S1303. The base station sends message 2 to the terminal device.

[0175] Message 2 carries the random access response.

[0176] S1304. The terminal device sends message 3 to the base station.

[0177] S1305. The base station sends message 4 to the terminal device.

[0178] Message 4 includes downlink transmission.

[0179] It should be noted that in FIG13 , a four-step random access process is used as an example to illustrate the transmission of downlink transmission based on a random access message sent by a base station. The four-step random access process here can be replaced by a two-step random access process.

[0180] Below, the paging method provided in the embodiment of the present application is described by taking the terminal device as a tag device as an example.

[0181] 1. The base station initiates paging to a terminal device using a known ID. The terminal device can receive paging messages using the known ID as the Paging UE ID in the paging record without going through the registration process. Terminal device IDs can be categorized as individual or group IDs. When a group ID is used, multiple terminals sharing certain characteristics will each consider the paging message to be addressed to them.

[0182] 2. The paging UE ID can be the factory-set ID of the tag, or it can be derived from the factory-set ID, such as through a security algorithm.

[0183] The paging UE ID is stored by the tag terminal and the network server respectively. When the tag logistics arrives at a warehouse, the 5G network covering the warehouse can obtain the ID information of the incoming tag in advance.

[0184] After receiving the network paging, the tag terminal reports the UE ID to the network by performing random access.

[0185] As shown in Figure 14, the tag device, i.e., the terminal device, interacts with the server on the network side using the original tag ID (original tag ID). Here, the original tag ID can be understood as the unencrypted UE ID. The server sends the original tag ID to the 5G network. The tag device sends the original tag ID to the security module to obtain the encrypted tag ID (encrypted tag ID), and the security module sends the encrypted tag ID to the tag device; the 5G network sends the original tag ID to the security module to obtain the encrypted tag ID (encrypted tag ID), and the security module sends the encrypted tag ID to the 5G network. As a result, the same encrypted tag ID is stored in both the tag device and the 5G network. The 5G network sends a paging message (Paging message) carrying the original tag ID or encrypted tag ID to page the tag device.

[0186] It should be noted that the security module in Figure 14 is a logical concept. In reality, a first security module and a second security module are deployed in the tag device and the 5G network, respectively. The first security module and the second security module are entities of the security module in Figure 14. The original tag ID of the tag device is encrypted by the first security module deployed in the tag device to obtain an encrypted tag ID. The original tag ID of the 5G core network is encrypted by the second security module deployed in the 5G core network to obtain an encrypted tag ID.

[0187] 3. When the terminal device receives the paging message, it does not perform random access to the network, but receives subsequent downlink data information based on the information received in the paging. The information in the paging can include at least one of the following:

[0188] Group RNTI used to decode downlink DCI indication information;

[0189] Search and determine the configuration information of the time-frequency domain resource range of the downlink DCI, such as the Group specific CORSET configuration and the search method search space configuration;

[0190] C-RNTI for decoding downlink DCI indication information;

[0191] Search and determine the configuration information of the time-frequency domain resource range of the downlink DCI, such as UE-specific CORSET configuration and search method search space configuration.

[0192] If the configuration information for searching and determining the time-frequency domain resource range for downlink DCI is not provided in the paging message, the terminal uses the default configuration in SIB1 by default, such as Type-0 CORSET configuration and Type 0 PDCCH Search space.

[0193] For the base station, when using the pre-configured terminal ID in plain text, directly sending data to the terminal through the paging message may involve data leakage (neither the Paging PDCCH nor the Paging message is encrypted). Therefore, the AMF and the base station need to exchange the data security level. When the level is lower than a certain threshold, or when the AMF informs the base station that data protection is not required, the base station can send information such as the G-RNTI to the terminal through the paging message according to the above steps, so that the terminal can subsequently receive downlink data.

[0194] The wireless communication method provided in the embodiments of the present application can be applied to, including but not limited to, the following embodiments 1 to 3.

[0195] Example 1

[0196] The wireless communication method provided in the embodiment of the present application is shown in FIG15 , including:

[0197] S1501. The core network sends a UE ID and downlink data to a base station.

[0198] S1502. The A-IOTtag determines the encrypted UE ID based on the UE ID.

[0199] The encrypted UE ID is also called the encrypted tag ID. The A-IOTtag can obtain the encrypted tag ID based on the time and cell ID information.

[0200] S1503. The base station determines an encrypted UE ID based on the UE ID.

[0201] The base station can obtain the encrypted tag ID based on the time and cell ID information.

[0202] S1504. The base station sends a paging message including the UE ID and DCI decoding related information to the A-IOTtag.

[0203] S1505. The base station sends DCI and PDSCH data to the A-IOTtag.

[0204] Among them, A-IOTtag receives DCI and PDSCH data based on DCI decoding related information.

[0205] Example 2

[0206] The wireless communication method provided in the embodiment of the present application is shown in FIG16 , including:

[0207] S1601. The core network sends a UE ID, downlink data, and a security level of the downlink data to a base station.

[0208] Among them, the security level of downlink data is low.

[0209] S1602. The base station sends a paging message including UE ID and DCI decoding related information to the A-IOTtag.

[0210] S1603. The base station sends DCI and PDSCH data to the A-IOTtag.

[0211] Among them, A-IOTtag receives DCI and PDSCH data based on DCI decoding related information.

[0212] Example 3

[0213] The wireless communication method provided in the embodiment of the present application is shown in FIG17 , including:

[0214] S1701. The core network sends a UE ID, downlink data, and a security level of the downlink data to a base station.

[0215] Among them, the security level of downlink data is high.

[0216] S1702. The base station sends a paging message including the UE ID to the A-IOTtag.

[0217] S1703: The base station sends message 4 or message B carrying DCI and PDSCH data to the A-IOTtag.

[0218] In an embodiment of this application, a method for receiving downlink data without requiring an A-IOT tag to perform initial access is proposed. This method can reduce the air interface resource overhead and latency associated with the massive initial access and registration of A-IOT devices in large-scale deployments such as indoor warehouses and logistics.

[0219] The preferred embodiments of the present application are described in detail above in conjunction with the accompanying drawings. However, the present application is not limited to the specific details in the above embodiments. Within the technical concept of the present application, the technical solution of the present application can be subjected to a variety of simple modifications, and these simple modifications all fall within the scope of protection of the present application. For example, the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present application will no longer describe the various possible combinations separately. For another example, the various different embodiments of the present application can also be arbitrarily combined, as long as they do not violate the idea of ​​the present application, they should also be regarded as the contents disclosed in the present application. For another example, under the premise of no conflict, the various embodiments and / or the technical features in each embodiment described in the present application can be arbitrarily combined with the prior art, and the technical solution obtained after the combination should also fall within the scope of protection of the present application.

[0220] It should also be understood that in the various method embodiments of the present application, the sequence numbers of the above-mentioned processes do not imply a precedence in the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application. In addition, in the embodiments of the present application, the terms "downlink," "uplink," and "sidelink" are used to indicate the transmission direction of signals or data, where "downlink" is used to indicate the first direction of transmission of signals or data from a site to a user equipment in a cell, "uplink" is used to indicate the second direction of transmission of signals or data from a user equipment in a cell to a site, and "sidelink" is used to indicate the third direction of transmission of signals or data from user equipment 1 to user equipment 2. For example, "downlink signal" indicates that the transmission direction of the signal is the first direction. In addition, in the embodiments of the present application, the term "and / or" is merely a description of the association relationship between associated objects, indicating that three relationships can exist. Specifically, A and / or B can represent three situations: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in this document generally indicates that the associated objects are in an "or" relationship.

[0221] FIG18 is a schematic diagram of the structure of a terminal device provided in an embodiment of the present application. As shown in FIG18 , the terminal device 1800 includes:

[0222] The first communication unit 1801 is configured to receive a first paging message, where the first paging message is used to determine first information, and the first information is used by the terminal device to receive downlink transmission from a core network device.

[0223] In some embodiments, the first information includes one or more of the following:

[0224] a first identifier, where the first identifier is used to decode the downlink transmission;

[0225] First configuration information, where the first configuration information is used to determine a time-frequency resource range for the downlink transmission.

[0226] In some embodiments, the first identifier includes:

[0227] Group Radio Network Temporary Identifier G-RNTI or Cell Radio Network Temporary Identifier C-RNTI.

[0228] In some embodiments, if the first information does not include the first configuration information, the time-frequency resource range of the downlink transmission is based on the first configuration information included in the system information block SIB1.

[0229] In some embodiments, the first configuration information includes:

[0230] The second information is group-specific or terminal device-specific, and the second information includes: control resource set configuration information and / or search space configuration information.

[0231] In some embodiments, the first paging message includes a second identifier, and the second identifier is an identifier of the terminal device or an encrypted identifier.

[0232] In some embodiments, if the second identifier is an encrypted identifier of the terminal device, the second identifier is obtained by calculating the identifier of the terminal device using a security algorithm.

[0233] In some embodiments, the second identifier is pre-stored in the terminal device and the core network device.

[0234] In some embodiments, the condition that the first paging message includes the first information includes one of the following:

[0235] The downlink transmission does not need to be protected;

[0236] The security level of the downlink transmission is lower than the set security level.

[0237] In some embodiments, the first communication unit 1801 is further configured to receive the downlink transmission based on the first information.

[0238] In some embodiments, the first communication unit 1801 is further configured to receive the downlink transmission via a random access message sent by the base station if the security level of the downlink transmission is higher than or equal to the set security level.

[0239] The first communication unit in the terminal device may be implemented by a transceiver in the terminal device.

[0240] It is understandable that the terminal device may further include a first processing unit configured to process downlink transmission, wherein the first processing unit may be implemented by a processor in the terminal device.

[0241] FIG19 is a schematic diagram of the first structure of a base station provided in an embodiment of the present application. As shown in FIG19 , a base station 1900 includes:

[0242] The second communication unit 1091 is configured to send a first paging message, where the first paging message is used to determine first information, and the first information is used by the terminal device to receive downlink transmission from the core network device.

[0243] In some embodiments, the first information includes one or more of the following:

[0244] a first identifier, where the first identifier is used to decode the downlink transmission;

[0245] First configuration information, where the first configuration information is used to determine a time-frequency resource range for the downlink transmission.

[0246] In some embodiments, the first identifier includes:

[0247] Group Radio Network Temporary Identifier G-RNTI or Cell Radio Network Temporary Identifier C-RNTI.

[0248] In some embodiments, if the first information does not include the first configuration information, the time-frequency resource range of the downlink transmission is based on the first configuration information included in the system information block SIB1.

[0249] In some embodiments, the first configuration information includes:

[0250] The second information is group-specific or terminal device-specific, and the second information includes: control resource set configuration information and / or search space configuration information.

[0251] In some embodiments, the first paging message includes a second identifier, and the second identifier is an identifier of the terminal device or an encrypted identifier.

[0252] In some embodiments, if the second identifier is an encrypted identifier of the terminal device, the second identifier is obtained by calculating the identifier of the terminal device using a security algorithm.

[0253] In some embodiments, the second identifier is pre-stored in the terminal device and the core network device.

[0254] In some embodiments, the second communication unit 1901 is further configured to receive the second identifier sent by the core network device.

[0255] In some embodiments, the condition that the first paging message includes the first information includes one of the following:

[0256] The downlink transmission does not need to be protected;

[0257] The security level of the downlink transmission is lower than the set security level.

[0258] In some embodiments, the second communication unit 1901 is further configured to receive indication information sent by the core network device, where the indication information is used to indicate the security level of the downlink transmission.

[0259] In some embodiments, the second communication unit 1901 is further configured to send the downlink transmission to the terminal device based on the first information.

[0260] In some embodiments, the second communication unit 1901 is further configured to receive the downlink transmission sent by the core network device.

[0261] In some embodiments, the second communication unit 1901 is further configured to send the downlink transmission to the terminal device by sending a random access message if the security level of the downlink transmission is higher than or equal to the set security level.

[0262] The second communication unit in the base station may be implemented by a transceiver in the network device.

[0263] It is understandable that the base station may further include a second processing unit configured to determine the first paging message carrying the first information. The second processing unit in the base station may be implemented by a processor in the base station.

[0264] Those skilled in the art should understand that the relevant description of the above-mentioned terminal device or base station in the embodiments of the present application can be understood by referring to the relevant description of the wireless communication method in the embodiments of the present application.

[0265] Figure 20 is a schematic diagram of a communication device 2000 provided in an embodiment of the present application. The communication device can be a terminal device or a base station. The communication device 2000 shown in Figure 20 includes a processor 2010, which can call and execute a computer program from a memory to implement the method in the embodiment of the present application.

[0266] Optionally, as shown in FIG20 , the communication device 2000 may further include a memory 2020. The processor 2010 may call and execute a computer program from the memory 2020 to implement the method in the embodiment of the present application.

[0267] The memory 2020 may be a separate device independent of the processor 2010 , or may be integrated into the processor 2010 .

[0268] Optionally, as shown in FIG20 , the communication device 2000 may further include a transceiver 2030 , and the processor 2010 may control the transceiver 2030 to communicate with other devices, specifically, to send information or data to other devices, or to receive information or data sent by other devices.

[0269] The transceiver 2030 may include a transmitter and a receiver. The transceiver 2030 may further include an antenna, and the number of antennas may be one or more.

[0270] Optionally, the communication device 2000 may specifically be a base station in an embodiment of the present application, and the communication device 2000 may implement the corresponding processes implemented by the base station in each method in the embodiment of the present application. For the sake of brevity, they will not be repeated here.

[0271] Optionally, the communication device 2000 may specifically be a mobile terminal / terminal device of an embodiment of the present application, and the communication device 2000 may implement the corresponding processes implemented by the mobile terminal / terminal device in each method of the embodiment of the present application. For the sake of brevity, they will not be repeated here.

[0272] Figure 21 is a schematic structural diagram of a chip according to an embodiment of the present application. The chip 2100 shown in Figure 21 includes a processor 2110, which can call and run a computer program from a memory to implement the method according to the embodiment of the present application.

[0273] Optionally, as shown in FIG21 , the chip 2100 may further include a memory 2120. The processor 2110 may call and execute a computer program from the memory 2120 to implement the method in the embodiment of the present application.

[0274] The memory 2120 may be a separate device independent of the processor 2110 , or may be integrated into the processor 2110 .

[0275] Optionally, the chip 2100 may further include an input interface 2130. The processor 2110 may control the input interface 2130 to communicate with other devices or chips, and specifically, may obtain information or data sent by other devices or chips.

[0276] Optionally, the chip 2100 may further include an output interface 2140. The processor 2110 may control the output interface 2140 to communicate with other devices or chips, and specifically, may output information or data to other devices or chips.

[0277] Optionally, the chip can be applied to the base station in the embodiments of the present application, and the chip can implement the corresponding processes implemented by the base station in each method of the embodiments of the present application. For the sake of brevity, they will not be repeated here.

[0278] Optionally, the chip can be applied to the mobile terminal / terminal device in the embodiments of the present application, and the chip can implement the corresponding processes implemented by the mobile terminal / terminal device in the various methods of the embodiments of the present application. For the sake of brevity, they will not be repeated here.

[0279] It should be understood that the chip mentioned in the embodiments of the present application can also be called a system-level chip, a system chip, a chip system or a system-on-chip chip, etc.

[0280] FIG22 is a schematic block diagram of a communication system 2200 provided in an embodiment of the present application. As shown in FIG22 , the communication system 2200 includes a terminal device 2210 and a base station 2220.

[0281] Among them, the terminal device 2210 can be used to implement the corresponding functions implemented by the terminal device in the above method, and the base station 2220 can be used to implement the corresponding functions implemented by the base station in the above method. For the sake of brevity, they will not be repeated here.

[0282] It should be understood that the processor of the embodiments of the present application may be an integrated circuit chip with signal processing capabilities. During implementation, each step of the above method embodiment can be completed by hardware integrated logic circuits in the processor or software instructions. The above processor can be a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field programmable gate array (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, or discrete hardware components. The various methods, steps, and logic block diagrams disclosed in the embodiments of the present application can be implemented or executed. The general-purpose processor can be a microprocessor or any conventional processor. The steps of the method disclosed in the embodiments of the present application can be directly embodied as being executed by a hardware decoding processor, or can be executed by a combination of hardware and software modules in the decoding processor. The software module can be located in a storage medium mature in the art, such as random access memory, flash memory, read-only memory, programmable read-only memory, electrically erasable programmable memory, registers, etc. The storage medium is located in the memory, and the processor reads the information in the memory and completes the steps of the above method in combination with its hardware.

[0283] It is understood that the memory in the embodiments of the present application may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memories. Among them, the non-volatile memory may be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory. The volatile memory may be a random access memory (RAM), which is used as an external cache. By way of example and not limitation, many forms of RAM are available, such as static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDR SDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link dynamic random access memory (SLDRAM), and direct RAM bus random access memory (DR RAM). It should be noted that the memory of the systems and methods described herein is intended to include, but is not limited to, these and any other suitable types of memory.

[0284] It should be understood that the above-mentioned memories are exemplary but not restrictive. For example, the memories in the embodiments of the present application may also be static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDR SDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link dynamic random access memory (SLDRAM), and direct RAM RAM (DR RAM), etc. In other words, the memories in the embodiments of the present application are intended to include, but are not limited to, these and any other suitable types of memories.

[0285] An embodiment of the present application also provides a computer-readable storage medium for storing a computer program.

[0286] Optionally, the computer-readable storage medium can be applied to the base station in the embodiments of the present application, and the computer program enables the computer to execute the corresponding processes implemented by the base station in the various methods of the embodiments of the present application. For the sake of brevity, they will not be repeated here.

[0287] Optionally, the computer-readable storage medium can be applied to the mobile terminal / terminal device in the embodiments of the present application, and the computer program enables the computer to execute the corresponding processes implemented by the mobile terminal / terminal device in the various methods of the embodiments of the present application. For the sake of brevity, they will not be repeated here.

[0288] An embodiment of the present application also provides a computer program product, including computer program instructions.

[0289] Optionally, the computer program product can be applied to the base station in the embodiments of the present application, and the computer program instructions enable the computer to execute the corresponding processes implemented by the base station in the various methods of the embodiments of the present application. For the sake of brevity, they will not be repeated here.

[0290] Optionally, the computer program product can be applied to the mobile terminal / terminal device in the embodiments of the present application, and the computer program instructions enable the computer to execute the corresponding processes implemented by the mobile terminal / terminal device in the various methods of the embodiments of the present application. For the sake of brevity, they will not be repeated here.

[0291] The embodiment of the present application also provides a computer program.

[0292] Optionally, the computer program can be applied to the base station in the embodiments of the present application. When the computer program runs on a computer, the computer executes the corresponding processes implemented by the base station in the various methods of the embodiments of the present application. For the sake of brevity, they will not be repeated here.

[0293] Optionally, the computer program can be applied to the mobile terminal / terminal device in the embodiments of the present application. When the computer program runs on the computer, the computer executes the corresponding processes implemented by the mobile terminal / terminal device in the various methods of the embodiments of the present application. For the sake of brevity, they will not be repeated here.

[0294] Those skilled in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

[0295] Those skilled in the art will clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0296] In the several embodiments provided in this application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are merely schematic. For example, the division of the units is merely a logical function division. In actual implementation, there may be other division methods, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0297] The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of these units may be selected to achieve the purpose of this embodiment according to actual needs.

[0298] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0299] If the functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application, or the part that contributes to the prior art, or the part of the technical solution, can be embodied in the form of a software product. The computer software product is stored in a storage medium and includes several instructions for enabling a computer device (which can be a personal computer, a server, or a base station, etc.) to execute all or part of the steps of the method described in each embodiment of the present application. The aforementioned storage medium includes various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk.

[0300] The above description is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present application should be included in the scope of protection of the present application. Therefore, the scope of protection of the present application should be based on the scope of protection of the claims.

Claims

1. A wireless communication method, the method comprising: The terminal device receives a first paging message, where the first paging message is used to determine first information, and the first information is used by the terminal device to receive downlink transmission from a core network device.

2. The method according to claim 1, wherein The first information includes one or more of the following: a first identifier, where the first identifier is used to decode the downlink transmission; First configuration information, where the first configuration information is used to determine a time-frequency resource range for the downlink transmission.

3. The method according to claim 2, wherein: The first identifier includes: Group Radio Network Temporary Identifier G-RNTI or Cell Radio Network Temporary Identifier C-RNTI.

4. The method according to claim 2 or 3, wherein: If the first information does not include the first configuration information, the time-frequency resource range of the downlink transmission is based on the first configuration information included in the system information block SIB1.

5. The method according to any one of claims 2 to 4, wherein: The first configuration information includes: The second information is group-specific or terminal device-specific, and the second information includes: control resource set configuration information and / or search space configuration information.

6. The method according to any one of claims 1 to 5, wherein: The first paging message includes a second identifier, which is the identifier of the terminal device or an encrypted identifier.

7. The method according to claim 6, wherein: If the second identifier is an encrypted identifier of the terminal device, the second identifier is obtained by calculating the identifier of the terminal device using a security algorithm.

8. The method according to claim 6 or 7, wherein: The second identifier is pre-stored in the terminal device and the core network device.

9. The method according to any one of claims 1 to 8, wherein: The condition that the first paging message includes the first information includes one of the following: The downlink transmission does not need to be protected; The security level of the downlink transmission is lower than the set security level.

10. The method according to any one of claims 1 to 9, wherein: The method further comprises: The terminal device receives the downlink transmission based on the first information.

11. The method according to any one of claims 1 to 9, wherein: The method further comprises: If the security level of the downlink transmission is higher than or equal to the set security level, the terminal device receives the downlink transmission via a random access message sent by the base station.

12. A wireless communication method, comprising: The base station sends a first paging message, where the first paging message is used to determine first information, and the first information is used by the terminal device to receive downlink transmission from the core network device.

13. The method according to claim 12, wherein: The first information includes one or more of the following: a first identifier, where the first identifier is used to decode the downlink transmission; First configuration information, where the first configuration information is used to determine a time-frequency resource range for the downlink transmission.

14. The method according to claim 13, wherein The first identifier includes: Group Radio Network Temporary Identifier G-RNTI or Cell Radio Network Temporary Identifier C-RNTI.

15. The method according to claim 13 or 14, wherein: If the first information does not include the first configuration information, the time-frequency resource range of the downlink transmission is based on the first configuration information included in the system information block SIB1.

16. The method according to any one of claims 13 to 15, wherein: The first configuration information includes: The second information is group-specific or terminal device-specific, and the second information includes: control resource set configuration information and / or search space configuration information.

17. The method according to any one of claims 12 to 16, wherein: The first paging message includes a second identifier, which is the identifier of the terminal device or an encrypted identifier.

18. The method according to claim 17, wherein If the second identifier is an encrypted identifier of the terminal device, the second identifier is obtained by calculating the identifier of the terminal device using a security algorithm.

19. The method according to claim 17 or 18, wherein The second identifier is pre-stored in the terminal device and the core network device.

20. The method according to claim 19, further comprising: The base station receives the second identifier sent by the core network device.

21. The method according to any one of claims 12 to 20, wherein: The condition that the first paging message includes the first information includes one of the following: The downlink transmission does not need to be protected; The security level of the downlink transmission is lower than the set security level.

22. The method according to claim 21, wherein The method further comprises: The base station receives indication information sent by the core network device, where the indication information is used to indicate a security level of the downlink transmission.

23. The method according to claims 12 to 22, wherein: The method further comprises: The base station sends the downlink transmission to the terminal device based on the first information.

24. The method according to claim 23, wherein The method further comprises: The base station receives the downlink transmission sent by the core network device.

25. The method according to any one of claims 12 to 24, wherein The method further comprises: If the security level of the downlink transmission is higher than or equal to the set security level, the base station sends the downlink transmission to the terminal device by sending a random access message.

26. A terminal device comprising: The first communication unit is configured to receive a first paging message, where the first paging message is used to determine first information, and the first information is used by the terminal device to receive downlink transmission from a core network device.

27. A base station, comprising: The second communication unit is configured to send a first paging message, where the first paging message is used to determine first information, and the first information is used by the terminal device to receive downlink transmission from the core network device.

28. A terminal device comprising: A processor and a memory, the memory being used to store a computer program, the processor being used to call and run the computer program stored in the memory to execute the method according to any one of claims 1 to 11.

29. A base station, comprising: A processor and a memory, the memory being used to store a computer program, the processor being used to call and run the computer program stored in the memory to execute the method according to any one of claims 12 to 25.

30. A chip, comprising: A processor, configured to call and run a computer program from a memory, so that a device equipped with the chip executes the method according to any one of claims 1 to 11, or executes the method according to any one of claims 12 to 25.

31. A computer-readable storage medium for storing a computer program, wherein the execution of the computer program causes a computer to execute the method according to any one of claims 1 to 12, or the method according to any one of claims 13 to 25.

32. A computer program product comprising computer program instructions, wherein execution of the computer program instructions causes a computer to perform the method according to any one of claims 1 to 12, or the method according to any one of claims 13 to 25.

33. A computer program, wherein the execution of the computer program causes a computer to execute the method according to any one of claims 1 to 12, or the method according to any one of claims 13 to 25.

Images