Communication method, apparatus and device, chip, storage medium, product, and program

Abstract

The present application discloses a communication method, apparatus and device, a chip, a storage medium, a product, and a program. The method comprises: a first terminal device receiving first information, the first information being used to indicate whether a terminal device corresponding to each of one or more types is allowed to access a first cell.

Description

Communication method, device, equipment, chip, storage medium, product and program Technical Field

[0001] The embodiments of the present application relate to the field of communication technology, and specifically to a communication method, apparatus, device, chip, storage medium, product, and program. Background Art

[0002] With the continuous development of communication technology, user terminal devices need to access service cells to use network resources to handle various transactions. However, in related technologies, network equipment controls the access of all terminal devices based on a set of parameters, which is not conducive to more flexible control of terminal device access and also reduces the utilization of network resources.

[0003] Summary of the Invention

[0004] Embodiments of the present application provide a communication method, apparatus, device, chip, storage medium, product, and program.

[0005] In a first aspect, an embodiment of the present application provides a communication method, the method comprising:

[0006] The first terminal device receives first information, where the first information is used to indicate whether a terminal device corresponding to each type of one or more types is allowed to access the first cell.

[0007] In a second aspect, an embodiment of the present application provides a communication method, the method comprising:

[0008] The network device sends first information, where the first information is used to indicate whether a terminal device corresponding to each of one or more types is allowed to access the first cell.

[0009] In a third aspect, an embodiment of the present application provides a communication device, the communication device comprising:

[0010] The receiving unit is configured to receive first information, where the first information is used to indicate whether a terminal device corresponding to each type of one or more types is allowed to access the first cell.

[0011] In a fourth aspect, an embodiment of the present application provides a communication device, the communication device comprising:

[0012] The sending unit is configured to send first information, where the first information is used to indicate whether a terminal device corresponding to each type of one or more types is allowed to access the first cell.

[0013] In a fifth aspect, an embodiment of the present application provides a communication device, comprising a processor and a memory. The memory is used to store a computer program, and the processor is used to call and run the computer program stored in the memory to perform the communication method of the first aspect or the second aspect.

[0014] In a sixth aspect, an embodiment of the present application provides a chip for implementing the communication method of the first aspect or the second aspect mentioned above.

[0015] Specifically, the chip includes: a processor for calling and running a computer program from a memory, so that a device equipped with the chip executes the communication method of the first aspect or the second aspect mentioned above.

[0016] In a seventh aspect, an embodiment of the present application provides a computer-readable storage medium, which stores a computer program, and when the computer program is executed by at least one processor, implements the communication method of the first aspect or the second aspect mentioned above.

[0017] In an eighth aspect, an embodiment of the present application provides a computer program product, comprising computer program instructions, which enable a computer to execute the communication method of the first or second aspect above.

[0018] In a ninth aspect, an embodiment of the present application provides a computer program, which, when executed on a computer, enables the computer to execute the communication method of the first or second aspect described above.

[0019] The embodiments of the present application provide a communication method, apparatus, device, chip, storage medium, product and program. The method may include: a first terminal device receives first information from a network device, and the first information is used to characterize whether the terminal device corresponding to each type of one or more types is allowed to access the first cell. In this way, after the first terminal device receives the first information, it can know whether the terminal device corresponding to each type is allowed to access the first cell; that is, after the first terminal device receives the first information, it can know the type of terminal device that is allowed to access the first cell, and the type of terminal device that is not allowed to access the first cell. In this way, the first terminal device can subsequently determine whether it is allowed to access the first cell based on the first information, thereby enabling the network device to more flexibly control the access of the first terminal device, while also improving the utilization rate of network resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] 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:

[0021] FIG1 is a schematic diagram of a zero-power communication network scenario;

[0022] FIG2 is a schematic diagram of the circuit structure of a radio frequency energy harvesting module;

[0023] FIG3 is a schematic diagram of a circuit structure of backscatter communication;

[0024] FIG4 is a schematic diagram of a circuit structure of a resistive load modulation;

[0025] FIG5 is a flow chart of a communication method provided in an embodiment of the present application;

[0026] FIG6 is a schematic diagram of a scenario 1 in which a first terminal device determines whether it is allowed to access a first cell, provided by an embodiment of the present application;

[0027] FIG7 is a second schematic diagram of a scenario in which a first terminal device determines whether it is allowed to access a first cell, provided by an embodiment of the present application;

[0028] FIG8 is a third schematic diagram of a scenario in which a first terminal device determines whether it is allowed to access a first cell, provided by an embodiment of the present application;

[0029] FIG9 is a fourth schematic diagram of a scenario in which a first terminal device determines whether it is allowed to access a first cell, provided by an embodiment of the present application;

[0030] FIG10 is a fifth schematic diagram of a scenario in which a first terminal device determines whether it is allowed to access a first cell, provided by an embodiment of the present application;

[0031] FIG11 is a schematic diagram of a structure of a communication device according to an embodiment of the present application;

[0032] FIG12 is a second schematic diagram of the structure of a communication device provided in an embodiment of the present application;

[0033] FIG13 is a schematic structural diagram of a communication device provided in an embodiment of the present application;

[0034] FIG14 is a schematic structural diagram of a chip provided in an embodiment of the present application;

[0035] FIG15 is a schematic block diagram of a communication system provided in an embodiment of the present application. DETAILED DESCRIPTION

[0036] 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.

[0037] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this application pertains. The terms used herein are for the purpose of describing the embodiments of this application only and are not intended to limit this application.

[0038] In the following description, reference is made to “some embodiments”, which describes a subset of all possible embodiments, but it will be understood that “some embodiments” may be the same subset or different subsets of all possible embodiments and may be combined with each other without conflict.

[0039] It should also be pointed out that the terms "first\second\third" involved in the embodiments of the present application are only used to distinguish similar objects and do not represent a specific ordering of the objects. It can be understood that "first\second\third" can be interchanged with a specific order or sequence where permitted, so that the embodiments of the present application described here can be implemented in an order other than that illustrated or described here.

[0040] In addition, the term "and / or" in the embodiments of this application is merely a description of the association relationship between associated objects, indicating that three relationships can exist. For example, A and / or B can represent: 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.

[0041] It should 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. For example, "A indicates B" can mean that A directly indicates B, for example, B can be obtained through A; it can also mean that A indirectly indicates B, for example, A indicates C, and B can be obtained through C; it can also mean that there is an association between A and B.

[0042] It should also be understood that the “predefined”, “protocol agreement”, “predetermined” 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, a terminal device), and the present application does not limit its specific implementation method. For example, predefined can refer to what is defined in the 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 the Long Term Evolution (LTE) protocol, the New Radio (NR) protocol, and related protocols used in future communication systems, and the present application does not limit this.

[0043] The technical solutions described in the embodiments of the present application can be combined arbitrarily without conflict. In the description of the present application, "multiple" means two or more, unless otherwise clearly defined.

[0044] The technical solutions of the embodiments of the present application can be applied to various communication systems, such as 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 NR communication system), or future communication systems.

[0045] In the embodiment of the present application, the terminal device can be a device that provides voice / data to the user, for example, a handheld device with wireless connection function, a vehicle-mounted device, etc. At present, some examples of terminals are: access terminal, user equipment (UE), mobile phone, tablet computer, laptop computer, PDA, mobile Internet device (MID), wearable device, virtual reality (VR) device, augmented reality (AR) device, wireless terminal in industrial control (Industrial Control), wireless terminal in self-driving (Self Driving), wireless terminal in remote medical surgery (Remote Medical Surgery), wireless terminal in smart grid (Smart Grid), wireless terminal in transportation safety (Transportation Safety), wireless terminal in smart city (Smart City), wireless terminal in smart home (Smart Home), cellular phone, cordless phone, Session Initiation Protocol (SIP) phone, Wireless Local Loop (WLL) station, Personal Digital Assistant (PDA) Assistant, PDA), handheld devices with wireless communication capabilities, computing devices or other processing devices connected to a wireless modem, wearable devices, terminal devices in a 5G network, or terminal devices in a future evolved public land mobile communication network (Public Land Mobile Network, PLMN), etc., the embodiments of the present application are not limited to this.

[0046] As an example and not a limitation, in the embodiment of the present application, the terminal device may also be a wearable device. Wearable devices may also be called wearable smart devices, which are a general term for wearable devices that are intelligently designed and developed using wearable technology for daily wear, such as glasses, gloves, watches, clothing, and shoes. A wearable device is a portable device that is worn directly on the body or integrated into the user's clothes or accessories. Wearable devices are not only hardware devices, but also achieve powerful functions through software support, data interaction, and cloud interaction. Broadly speaking, wearable smart devices include those that are fully functional, large in size, and can achieve complete or partial functions without relying on smartphones, such as smart watches or smart glasses, as well as those that only focus on a certain type of application function and need to be used in conjunction with other devices such as smartphones, such as various smart bracelets and smart jewelry for vital sign monitoring.

[0047] In addition, in the embodiments of the present application, the terminal device can also be a terminal device in an IoT system. IoT is an important part of the future development of information technology. Its main technical feature is to connect objects to the network through communication technology, thereby realizing an intelligent network of human-machine interconnection and object-to-object interconnection.

[0048] It should be noted that terminal devices and network devices (Network, NW) can communicate with each other using certain air interface technologies (such as NR or LTE technology). Terminal devices can also communicate with each other using certain air interface technologies (such as NR or LTE technology).

[0049] It should be noted that the device for implementing the function of the terminal device can be the terminal device, or it can be a device that can support the terminal device to implement the function, such as a chip system or chip, which can be installed in the terminal device. In the embodiment of the present application, the chip system can be composed of a chip, or it can include a chip and other discrete devices.

[0050] In an embodiment of the present application, the network device may be an evolved base station (eNB or eNodeB) in an LTE system, or a next generation (NG) radio access network (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 may 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 PLMN, etc.

[0051] 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.

[0052] Zero-power communication is a key technology that utilizes RF energy harvesting, backscattering, and low-power computing. Zero-power communication is characterized by the ability to harvest radio waves in space to generate energy to power zero-power terminal devices. Furthermore, zero-power communication utilizes backscattering and low-power computing techniques, enabling extremely simple RF and baseband circuit structures for zero-power terminal devices. In short, this promises to enable battery-free terminal devices, meeting the ultra-low power, extremely small size, and extremely low-cost IoT communication requirements, significantly reducing terminal cost, size, and circuit energy consumption.

[0053] Figure 1 is a schematic diagram of a scenario of a zero-power communication network. As shown in Figure 1, the zero-power communication network may include a network device 110 and a terminal device 120, and the terminal device 120 is a zero-power device. The network device 110 can send a wireless power supply signal and a downlink communication signal (i.e., power supply / trigger) to the terminal device 120; after the terminal device 120 receives the wireless power supply signal and the downlink communication signal from the network device 110, it can send a backscatter signal to the network device 110. A basic zero-power terminal device 120 may include an energy collection module, a backscatter communication module, and a low-power computing module. In addition, the zero-power terminal device 120 may also include a sensor module for storing some basic information (such as item identification, etc.) or obtaining sensor data such as ambient temperature and ambient humidity. For example, the sensor module may be a memory or a sensor.

[0054] During zero-power communication, network devices can send wireless power signals and downlink communication signals to zero-power end devices. Zero-power end devices can also send backscatter signals to network devices. Therefore, the key to zero-power communication lies in radio frequency (RF) energy harvesting and backscatter communication. The following describes RF energy harvesting and backscatter communication, respectively, using Figures 2 and 3.

[0055] Figure 2 is a schematic diagram of the circuit structure of an RF Power Harvesting module. As shown in Figure 2, the RF Power Harvesting module may include a tunnel diode, a capacitor C (including a positive electrode +q and a negative electrode -q) and a resistor R L RF signals can be harvested through tunnel diodes to complete the RF energy harvesting process. For example, the RF energy harvesting module can harvest electromagnetic wave energy from space based on the principle of electromagnetic induction, thereby obtaining the energy required to operate zero-power terminal devices. For example, this energy can be used to drive low-power demodulation and modulation modules, sensors, and memory readout. This shows that zero-power terminal devices do not require traditional batteries.

[0056] Figure 3 is a schematic diagram of the circuit structure of backscattering communication. As shown in Figure 3, backscattering communication may include a network device 310 and a terminal device 320, and the terminal device 320 is a zero-power device. The network device 310 may include a transmitter (TX), an operational amplifier (AMP), a receiver (RX), and a low-noise amplifier (LNA); the terminal device 320 may include a resistor R, a logic processing module, and an energy harvesting module. The terminal device 320 can receive a wireless signal from the network device 310, modulate the wireless signal, and radiate the modulated wireless signal (i.e., the backscattering signal) from the antenna after loading the information to be sent. This information transmission process is called backscattering communication.

[0057] In the embodiments of this application, backscatter and load modulation are closely linked. Load modulation achieves this by adjusting and controlling the circuit parameters of the oscillating circuit of a zero-power terminal device according to the data stream's rhythm, thereby changing parameters such as the electronic tag's impedance. Load modulation primarily includes resistive load modulation and capacitive load modulation.

[0058] Figure 4 is a schematic diagram of a circuit structure of a resistive load modulation. As shown in Figure 4, the circuit structure may include inductors L1 and L2, capacitors C1 and C2, resistors R2 and R3, and a load R L In resistive load modulation, the load R L By connecting a resistor R3 in parallel, the on / off state of switch S can be controlled based on a binary data stream (i.e., binary coding), thereby controlling the on / off state of resistor R3. The on / off state of resistor R3 causes the circuit voltage to change, thereby implementing amplitude shift keying (ASK). In other words, by adjusting the amplitude of the backscattered signal from a zero-power terminal device, signal modulation and transmission can be achieved.

[0059] Similarly, in capacitive load modulation, the resonant frequency of the circuit can be changed by switching the capacitor on and off, thereby implementing frequency shift keying (FSK). In other words, by adjusting the operating frequency of the backscattered signal of the zero-power terminal device, signal modulation and transmission can be achieved.

[0060] It should be noted that zero-power terminal devices can use load modulation to modulate the incoming signal, thereby realizing the backscatter communication process. Zero-power terminal devices have the following advantages:

[0061] (1) Zero-power terminal devices do not actively transmit signals, so they do not require complex RF links, such as power amplifiers (PAs), RF filters, etc.

[0062] (2) Zero-power terminal devices do not need to actively generate high-frequency signals, so they do not require high-frequency crystal oscillators;

[0063] (3) Zero-power terminal devices can use backscatter communication and do not need to consume their own energy when transmitting signals.

[0064] It should also be noted that, based on the current discussions within the 3rd Generation Partner Project (3GPP), zero-power terminal devices can be divided into the following three categories based on whether they have energy storage capabilities and whether they have the ability to independently generate RF signals for transmission:

[0065] (1) Zero-power terminal devices do not have the ability to store energy, generate RF signals independently, or amplify them. The transmission of RF signals relies on backscattering.

[0066] (2) Zero-power terminal devices have energy storage capabilities, but do not have the ability to independently generate RF signals. The transmission of RF signals relies on backscattering, and the stored energy can be used to amplify RF signals.

[0067] (3) The zero-power terminal device has the ability to store energy and also has the ability to independently generate radio frequency signals. In other words, the zero-power terminal device can actively send radio frequency signals, and the stored energy can be used to amplify the radio frequency signals.

[0068] In the embodiment of the present application, two mechanisms are mainly involved when the terminal device accesses a cell: the NR cell barred mechanism and the NR access control (Unified Access Control, UAC) mechanism. The following describes these two mechanisms.

[0069] (1) NR Cellbarred Mechanism

[0070] During the initial access phase, after obtaining time-frequency domain synchronization, the terminal device can read the Master Information Block (MIB). The MIB mainly includes the following two parameters related to cell selection and / or reselection:

[0071] Cellbarred: used to indicate whether the current cell is barred for all terminal devices. When Cellbarred indicates barred (Barred), terminal devices in the Radio Resource Control (RRC) idle state (IDLE) and RRC suspended state (INACITVE) cannot access the cell.

[0072] IntraFreqReselection: This indicates whether a terminal device is allowed to select and / or reselect to the next best cell on the current frequency if the current cell is the best cell for the current frequency and the current cell does not allow the terminal device to access it. In other words, IntraFreqReselection can be used to indicate whether a terminal device is allowed to access a cell on the same frequency as the current cell if the current cell does not allow the terminal device to access it.

[0073] (2)NR UAC mechanism

[0074] To control the load on network devices, NR introduces the UAC mechanism, which defines access identities and access categories.

[0075] The access identifier can represent the identity characteristics of the terminal device itself. The definition of the access identifier is given in the protocol TS24.501 and will not be repeated here.

[0076] Access categories represent the service attributes of calls initiated by terminal devices. Access categories include standardized access categories, operator-defined access categories, and other undefined access categories.

[0077] The RAN can broadcast access control information related to the access category and access identity. The access stratum (AS) of the terminal device can perform access barring check (ABC) testing (Checking) based on the broadcast access control information and the access category and access identity provided by the AS / non-access stratum (NAS).

[0078] The UAC parameter can be configured per access category and on a per PLMN basis.

[0079] A maximum of eight UAC-BarringInfoSets can be configured on the network device side. Each UAC-BarringInfoSet can include the following parameters:

[0080] UAC-Barring Factor: Mainly indicates the probability that a terminal device will be allowed to pass when attempting to access the current cell;

[0081] UAC-Barring Time: It can be used to determine the minimum time interval after an access attempt initiated by a terminal device of a certain access category fails and before the next access attempt is initiated by a terminal device of the same access category.

[0082] UAC-BarringForAccessIdentity: can be used to indicate whether each access identity is allowed to make an access attempt.

[0083] Each access category can be associated with a UAC-BarringInfoSet, for a total of 64 access categories. This can be configured on a per-PLMN basis, with each PLMN associated with a UAC-BarringList for each category (BarringPerCatList). If per-PLMN information is not configured, the above configuration applies to all PLMNs.

[0084] Based on the above UAC configuration parameters, the terminal device performs ABC Checking in the following steps:

[0085] Step 1: If timers T390 and T302 are not running and the access category is not 0, according to the UAC configuration information: Step 2 can be performed;

[0086] Step 2: If the bit corresponding to the access identifier in UAC-BarringForAccessIdentity is set to 0, it means that the current cell allows the terminal device to access; if the bit corresponding to the access identifier in UAC-BarringForAccessIdentity is set to 1, further judgment is required and step 3 is executed;

[0087] Step 3: The terminal device generates a random number (rand), where 0≤rand<1. If the random number is less than or equal to the BarringFactor, the current cell allows the terminal device access; if the random number is greater than the BarringFactor, the current cell prohibits the terminal device access. If the current cell prohibits the terminal device access, the terminal device can generate rand again, start T390, and calculate T390 = (0.7 + 0.6 * rand) * UAC - BarringTime. Therefore, the T390 value obtained by the terminal device will vary depending on the rand generated by the terminal device.

[0088] For events triggered by the NAS, the NAS determines the access identifier, access category, and cause value. The NAS provides the access identifier and access category to the AS, which then performs ABC checking. After the AS completes the ABC checking, it provides the NAS with the results, which then provide the AS with the cause value. Based on the ABC checking results provided by the AS, the NAS can then stop or allow service transmission.

[0089] For AS-triggered events, the information exchanged between the NAS and the AS is a terminal device implementation behavior. AS-triggered events can mainly include paging triggers and RAN-based Notification Area Update (RNAU) triggers:

[0090] Paging trigger: When access category is 0, terminal device access is not controlled by ABC and will override the Cause Value. During interaction between NAS and AS, NAS can provide the Cause Value.

[0091] RNAU triggering: The AS can determine the access category, and the NAS can provide the AS with an access identifier, which can then perform ABC checking. The AS can also determine the cause value. For example, the AS can set the cause value to RNAU.

[0092] With the continuous development of communication technology, user terminal devices need to access serving cells to utilize network resources for various tasks. However, current network equipment controls access to all terminal devices based on a set of parameters, which hinders flexible control over terminal access and reduces network resource utilization.

[0093] Based on this, an embodiment of the present application provides a communication method, in which a first terminal device can receive first information from a network device, and the first information is used to characterize whether a terminal device corresponding to each type of one or more types is allowed to access the first cell. In this way, after the first terminal device receives the first information, it can know whether the terminal device corresponding to each type is allowed to access the first cell; that is, after the first terminal device receives the first information, it can know the type of terminal device that is allowed to access the first cell, and the type of terminal device that is not allowed to access the first cell. In this way, the first terminal device can subsequently determine whether it is allowed to access the first cell based on the first information, thereby enabling the network device to more flexibly control the access of the first terminal device, while also improving the utilization rate of network resources.

[0094] 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.

[0095] FIG5 is a flow chart of a communication method provided in an embodiment of the present application. As shown in FIG5 , the method may include the following steps.

[0096] S510. The first terminal device receives first information, where the first information is used to indicate whether a terminal device corresponding to each type of one or more types is allowed to access the first cell.

[0097] Accordingly, the network device may send the first information.

[0098] It should be noted that the network device can send the first information in the form of broadcast or in other ways; the first terminal device can receive the first information sent in the form of broadcast or in other ways, and the embodiments of the present application do not limit this.

[0099] It should also be noted that the network device can send the first information to the first terminal device, and can also send the first information to other terminal devices other than the first terminal device. This embodiment of the present application does not limit this.

[0100] It should also be noted that the first cell may be a cell served by the network device.

[0101] In some embodiments, whether the terminal device corresponding to each type of one or more types is allowed to access the first cell may include: the terminal devices corresponding to some types of one or more types are allowed to access the first cell, and the terminal devices corresponding to other types are not allowed to access the first cell.

[0102] It should be noted that, after receiving the first information, the first terminal device can learn the types of terminal devices that are allowed to access the first cell, as well as the types of terminal devices that are not allowed to access the first cell.

[0103] Furthermore, when the type of the first terminal device is the first type, after receiving the first information, the first terminal device can know whether the terminal device corresponding to the first type is allowed to access the first cell, so that the first terminal device can know whether it is allowed to access the first cell.

[0104] It should also be noted that whether a terminal device is allowed to access the first cell is associated with the type of the terminal device. The network device may classify the terminal devices according to their types, such that terminal devices corresponding to some types are allowed to access the first cell, while terminal devices corresponding to other types are not allowed to access the first cell.

[0105] It should also be noted that the number of terminal devices corresponding to each type can be one or more, and this embodiment of the present application does not limit this.

[0106] In some embodiments, the type of the terminal device may include the device type of the terminal device and / or the service type of the terminal device.

[0107] Through this method, after receiving the first information from the network device, the first terminal device can learn the device type and / or service type of the terminal devices that are allowed to access the first cell, as well as the device type and / or service type of the terminal devices that are not allowed to access the first cell. In this way, the first terminal device can subsequently determine whether it is allowed to access the first cell based on the first information, thereby enabling the network device to more flexibly control the access of the first terminal device and also improving the utilization of network resources.

[0108] It should be noted that the device type of the terminal device can be determined based on the capabilities supported by the terminal device.

[0109] Furthermore, the device type of the terminal device may be determined based on one or more of the following:

[0110] Whether the terminal device is a zero-power device;

[0111] In the case of a zero-power terminal device, whether the terminal device is capable of independently generating radio frequency signals; and

[0112] In the case where the terminal device is a zero-power device, whether the terminal device can store energy.

[0113] Exemplarily, the device type of the terminal device may be determined based on one or more of the following:

[0114] The terminal device is not a zero-power device;

[0115] The terminal device is a zero-power device;

[0116] In the case where the terminal device is a zero-power device, the terminal device can independently generate a radio frequency signal;

[0117] In the case where the terminal device is a zero-power device, the terminal device cannot independently generate a radio frequency signal;

[0118] In the case where the terminal device is a zero-power device, the terminal device is capable of storing energy; and

[0119] In the case where the terminal device is a zero-power consumption device, the terminal device cannot store energy.

[0120] It should be noted that, in the case of a zero-power terminal device, whether the terminal device can independently generate RF signals and whether the terminal device can store energy can be combined. For example, in the case of a zero-power terminal device, the terminal device can independently generate RF signals but cannot store energy; for another example, in the case of a zero-power terminal device, the terminal device can both independently generate RF signals and store energy; for another example, in the case of a zero-power terminal device, the terminal device cannot independently generate RF signals but can store energy; for another example, in the case of a zero-power terminal device, the terminal device can neither independently generate RF signals nor store energy.

[0121] Furthermore, the service type of the terminal device represents the type of service supported by the terminal device.

[0122] It should be noted that the service type of the terminal device can change in real time according to the service currently required by the terminal device.

[0123] In some embodiments, based on different delay requirements of service types, the service types of terminal devices can be divided into delay-sensitive services and delay-insensitive services.

[0124] Exemplarily, the service types of the terminal device can be divided into control type, collection type and extension type.

[0125] For example, control services may include at least one of the following: distribution automation, precise load control, and load control.

[0126] For another example, a collection-type business may be electricity consumption information collection.

[0127] For another example, extended services may include video surveillance and / or voice services.

[0128] Among them, precise load control can be a delay-sensitive service, while electricity consumption information collection can be a delay-insensitive service.

[0129] It should be noted that, in addition to being divided according to the latency requirements of the service types, the service types of terminal devices can also be divided into more types according to other standards, and the embodiments of the present application do not limit this.

[0130] An embodiment of the present application provides a communication method, in which a first terminal device can receive first information from a network device, and the first information is used to characterize whether a terminal device corresponding to each type of one or more types is allowed to access a first cell. In this way, after the first terminal device receives the first information, it can know whether the terminal device corresponding to each type is allowed to access the first cell; that is, after the first terminal device receives the first information, it can know the type of terminal device that is allowed to access the first cell, and the type of terminal device that is not allowed to access the first cell. In this way, the first terminal device can subsequently determine whether it is allowed to access the first cell based on the first information, thereby enabling the network device to more flexibly control the access of the first terminal device, while also improving the utilization rate of network resources.

[0131] In cellular systems, different types of terminal devices support different capabilities or transmit signals based on different signal waveforms. For example, the signal waveform transmitted by ordinary NR terminal devices is based on orthogonal frequency division multiplexing (OFDM), while the signal waveform transmitted by zero-power terminal devices is based on on-off keying (OOK). If the coexistence of ordinary NR terminal devices and zero-power terminal devices is to be supported, the uplink transmission resources for these two types of terminal devices need to be differentiated.

[0132] Furthermore, some zero-power terminal devices do not have the ability to independently generate RF signals, and the transmission of their RF signals can only rely on backscattering. The uplink transmission of this type of zero-power terminal device needs to be triggered by a downlink signal. At this time, the network device needs to configure uplink transmission resources for backscattering for this type of zero-power terminal device; while some zero-power terminal devices can independently generate RF signals. This type of zero-power terminal device mainly initiates uplink transmission. At this time, the network device needs to configure active uplink transmission resources for this type of zero-power terminal device, such as Physical Random Access Channel (PRACH) resources, and for example, Physical Uplink Shared Channel (PUSCH) resources.

[0133] Currently, in some scenarios, the network device may configure uplink transmission resources for some types of terminal devices, but not for other types of terminal devices; or, over a period of time, the network device has a heavy load on the uplink transmission resources for a certain type of terminal device (for example, multiple terminal devices use the same uplink transmission resources, resulting in a high probability of conflict).

[0134] In an embodiment of the present application, when different types of terminal devices coexist, different types of terminal devices have different configuration requirements for uplink transmission resources, so the network device can configure uplink transmission resources separately for different types of terminal devices; that is, the network device can configure uplink transmission resource pools corresponding to different types of terminal devices.

[0135] Based on S510, when the first information is used to characterize whether the terminal device corresponding to each type of one or more types is allowed to access the first cell, the first information may include configuration information, and the network device may use the configuration information to configure the uplink transmission resources corresponding to some types of one or more types, so as to use the configuration information to implicitly indicate whether the terminal device corresponding to each type of one or more types is allowed to access the first cell.

[0136] In addition, when the first information is used to characterize whether the terminal device corresponding to each of one or more types is allowed to access the first cell, the first information may also include indication information, and the network device may also use the indication information to indicate other information, so that the indication information can be used to display / implicitly indicate whether the terminal device corresponding to each of one or more types is allowed to access the first cell.

[0137] Based on this, in some embodiments, the first information may include one or more of the following:

[0138] Configuration information, where the configuration information configures uplink transmission resources corresponding to some of the one or more types;

[0139] First indication information, where the first indication information indicates whether a terminal device corresponding to each type of one or more types is allowed to access the first cell;

[0140] second indication information, where the second indication information indicates a probability that a terminal device corresponding to each of the one or more types is allowed to access the first cell;

[0141] Third indication information, the third indication information indicating whether terminal devices corresponding to some types of one or more types are allowed to access a same-frequency cell of the first cell when the terminal devices are not allowed to access the first cell; and

[0142] The fourth indication information, the first indication information indicates the minimum time interval from the current moment for the terminal device corresponding to some types of one or more types to be allowed to try to access the first cell next time if the terminal device fails to try to access the first cell at the current moment.

[0143] Exemplarily, the uplink transmission resources corresponding to the type of terminal device may be configured by the network device.

[0144] For example, the probability may be configured by a network device, may be predefined by a protocol, or may be set in other ways, and this is not limited in the embodiments of the present application.

[0145] Exemplarily, the minimum time interval may be configured by a network device, may be predefined by a protocol, or may be set in other ways, and this is not limited in the embodiments of the present application.

[0146] It should be noted that the indication information (such as the first indication information) can use a bit indication field to indicate the above information.

[0147] Exemplarily, in a case where the first indication information indicates whether the terminal device corresponding to each type of one or more types is allowed to access the first cell, if the terminal devices corresponding to some types of one or more types are allowed to access the first cell, the Barred bit indication field corresponding to each type of the some types can be set to 0; or, if the terminal devices corresponding to another type of one or more types are not allowed to access the first cell, the Barred bit indication field corresponding to each type of the other type can be set to 1.

[0148] It should also be noted that when the network device uses the first information to display / implicitly indicate whether the terminal device corresponding to each type of one or more types is allowed to access the first cell, it can use one type of the above-mentioned first information or multiple types of the above-mentioned first information. This embodiment of the present application does not limit this.

[0149] Exemplarily, the first information may include configuration information.

[0150] Exemplarily, the first information may include first indication information and second indication information.

[0151] In some embodiments, whether the first terminal device is allowed to access the first cell is determined based on the first information and a first type of the first terminal device, where the first type is one of one or more types.

[0152] It should be noted that, when the first type is one of one or more types, the terminal device corresponding to the first type may be one or more of the terminal devices corresponding to the one or more types. For example, the first terminal device corresponding to the first type may be one of the terminal devices corresponding to the one or more types.

[0153] Exemplarily, the number of terminal devices corresponding to the first type may be one. For example, the terminal device corresponding to the first type is the first terminal device.

[0154] Exemplarily, the number of terminal devices corresponding to the first type may be multiple. For example, in addition to the first terminal device, the terminal devices corresponding to the first type may also include other terminal devices, which is not limited in the embodiment of the present application.

[0155] In some embodiments, the first type of the first terminal device may include a device type of the first terminal device and / or a service type of the first terminal device.

[0156] It should be noted that the device type of the first terminal device can be determined based on the capabilities supported by the first terminal device.

[0157] Furthermore, the device type of the first terminal device may be determined based on one or more of the following:

[0158] Whether the first terminal device is a zero-power consumption device;

[0159] In the case where the first terminal device is a zero-power device, whether the first terminal device is capable of independently generating a radio frequency signal; and

[0160] In the case that the first terminal device is a zero-power consumption device, whether the first terminal device is capable of storing energy.

[0161] Exemplarily, the device type of the first terminal device may be determined based on one or more of the following:

[0162] The first terminal device is not a zero-power device;

[0163] The first terminal device is a zero-power consumption device;

[0164] In the case where the first terminal device is a zero-power device, the first terminal device is capable of independently generating a radio frequency signal;

[0165] In the case where the first terminal device is a zero-power device, the first terminal device is unable to independently generate a radio frequency signal;

[0166] In the case where the first terminal device is a zero-power consumption device, the first terminal device is capable of storing energy; and

[0167] In the case that the first terminal device is a zero-power consumption device, the first terminal device cannot store energy.

[0168] It should be noted that, when the first terminal device is a zero-power device, whether the first terminal device can independently generate radio frequency signals and whether the first terminal device can store energy can be combined. For example, when the first terminal device is a zero-power device, the first terminal device can independently generate radio frequency signals but cannot store energy; for another example, when the first terminal device is a zero-power device, the first terminal device can both independently generate radio frequency signals and store energy; for another example, when the first terminal device is a zero-power device, the first terminal device cannot independently generate radio frequency signals but can store energy; for another example, when the first terminal device is a zero-power device, the first terminal device can neither independently generate radio frequency signals nor store energy.

[0169] Furthermore, the service type of the first terminal device represents the type of service supported by the first terminal device.

[0170] It should be noted that the service type of the first terminal device can change in real time according to the service currently required by the first terminal device.

[0171] In some embodiments, based on different delay requirements of service types, the service type of the first terminal device can be divided into delay-sensitive services and delay-insensitive services.

[0172] Exemplarily, the service type of the first terminal device can be divided into a control type, a collection type, and an extension type.

[0173] For example, control services may include at least one of the following: distribution automation, precise load control, and load control.

[0174] For another example, a collection-type business may be electricity consumption information collection.

[0175] For another example, extended services may include video surveillance and / or voice services.

[0176] Among them, precise load control can be a delay-sensitive service, while electricity consumption information collection can be a delay-insensitive service.

[0177] It should be noted that, in addition to being divided according to the latency requirements of the service type, the service type of the first terminal device can also be divided into more types according to other standards, and the embodiments of the present application do not limit this.

[0178] Through this method, whether the first terminal device is allowed to access the first cell can be determined based on the first information and the first type of the first terminal device. In this way, the network device can more flexibly control the access of the first terminal device and improve the utilization of network resources.

[0179] In the embodiment of the present application, the first terminal device may determine whether to be allowed to access the first cell based on the first information and the first type of the first terminal device in the following ways:

[0180] Method #A: When the first information includes configuration information, and the configuration information configures uplink transmission resources corresponding to some types of one or more types, the first terminal device can determine whether it is allowed to access the first cell based on whether the configuration information configures uplink transmission resources corresponding to the first type.

[0181] It should be noted that the configuration information configures the uplink transmission resources corresponding to the first type. It can be understood that the configuration information implicitly indicates whether the first terminal device is allowed to access the first cell.

[0182] That is, in some embodiments, when the configuration information configures uplink transmission resources corresponding to the first type, the first terminal device may determine that it is allowed to access the first cell; or,

[0183] In a case where the configuration information does not configure uplink transmission resources corresponding to the first type, the first terminal device may determine that it is not allowed to access the first cell.

[0184] For example, FIG6 is a schematic diagram of a scenario in which a first terminal device determines whether it is allowed to access a first cell, as provided in an embodiment of the present application. As shown in FIG6 , if uplink transmission resources corresponding to the first type exist in the broadcast configuration of the network device, the first terminal device may determine that it is allowed to access the first cell; alternatively, if uplink transmission resources corresponding to the first type do not exist in the broadcast configuration of the network device, the first terminal device may determine that it is not allowed to access the first cell.

[0185] Through this method, if the first information includes configuration information and the configuration information configures uplink transmission resources corresponding to the first type, the first terminal device can determine that it is allowed to access the first cell; or if the configuration information does not configure uplink transmission resources corresponding to the first type, the first terminal device can determine that it is not allowed to access the first cell. In this way, the network device can more flexibly control the access of the first terminal device, while also improving the utilization of network resources.

[0186] Method #B: When the first information includes first indication information, and the first indication information indicates whether the terminal device corresponding to the first type is allowed to access the first cell, the first terminal device can determine whether it is allowed to access the first cell.

[0187] It should be noted that the first indication information indicates whether the terminal device corresponding to the first type is allowed to access the first cell. It can be understood that the first indication information explicitly indicates whether the first terminal device is allowed to access the first cell.

[0188] That is, in some embodiments, when the first indication information indicates that the terminal device corresponding to the first type is allowed to access the first cell, the first terminal device may determine that it is allowed to access the first cell; or,

[0189] In a case where the first indication information indicates that the terminal device corresponding to the first type is not allowed to access the first cell, the first terminal device may determine that it is not allowed to access the first cell.

[0190] For example, Figure 7 is a second schematic diagram of a scenario in which a first terminal device determines whether it is allowed to access a first cell, provided in an embodiment of the present application. As shown in Figure 7, if the network device broadcasts an indication that a terminal device corresponding to the first type is allowed to access the first cell, the first terminal device can determine that it is allowed to access the first cell; alternatively, if the network device broadcasts an indication that a terminal device corresponding to the first type is not allowed to access the first cell, the first terminal device can determine that it is not allowed to access the first cell.

[0191] Through this method, when the first information includes first indication information, and the first indication information indicates that a terminal device corresponding to the first type is allowed to access the first cell, the first terminal device can determine that it is allowed to access the first cell; or when the first indication information indicates that a terminal device corresponding to the first type is not allowed to access the first cell, the first terminal device can determine that it is not allowed to access the first cell. In this way, the network device can more flexibly control the access of the first terminal device, while also improving the utilization of network resources.

[0192] Method #C: When the first information includes second indication information, and the second indication information indicates the probability that the terminal device corresponding to the first type is allowed to access the first cell, the first terminal device can determine whether it is allowed to access the first cell based on the probability that the terminal device corresponding to the first type is allowed to access the first cell.

[0193] It should be noted that the second indication information indicates the probability that the terminal device corresponding to the first type is allowed to access the first cell. It can be understood that the first information implicitly indicates whether the first terminal device is allowed to access the first cell.

[0194] That is, in some embodiments, the second indication information indicates the probability that the terminal device corresponding to the first type is allowed to access the first cell; the method may further include: when the random number of the first terminal device is less than or equal to the probability, the first terminal device determines that it is allowed to access the first cell; or,

[0195] In a case where the random number of the first terminal device is greater than the probability, the first terminal device determines that it is not allowed to access the first cell.

[0196] It should be noted that the random number of the first terminal device may be generated by the first terminal device.

[0197] Exemplarily, the random number of the first terminal device ranges from 0 to 1.

[0198] For example, FIG8 is a schematic diagram of a third scenario in which a first terminal device determines whether it is allowed to access a first cell, as provided in an embodiment of the present application. As shown in FIG8 , when a network device broadcasts an indication of the probability that a terminal device corresponding to a first type is allowed to access the first cell, if the random number of the first terminal device is less than or equal to the probability, the first terminal device is determined to be allowed to access the first cell; alternatively, if the random number of the first terminal device is greater than the probability, the first terminal device is determined not to be allowed to access the first cell.

[0199] With this method, when the first information includes second indication information, and the second indication information indicates the probability that a terminal device corresponding to the first type is allowed to access the first cell, the first terminal device can compare the random number with the probability to determine whether it is allowed to access the first cell. This allows the network device to more flexibly control the access of the first terminal device, while also improving the utilization of network resources.

[0200] Method #D: When the first information includes third indication information, and the third indication information indicates that the terminal device corresponding to the first type is not allowed to access the first cell, the first terminal device can determine that it is not allowed to access the first cell.

[0201] Furthermore, when the third indication information also indicates whether the terminal device corresponding to the first type is allowed to access the same-frequency cell of the first cell, the first terminal device can determine whether it is allowed to access the same-frequency cell of the first cell.

[0202] It should be noted that the third indication information indicates that the terminal device corresponding to the first type is not allowed to access the first cell. It can be understood that the third indication information explicitly indicates that the first terminal device is not allowed to access the first cell.

[0203] It should also be noted that the third indication information also indicates whether the terminal device corresponding to the first type is allowed to access the same-frequency cell of the first cell. It can be understood that the third indication information also explicitly indicates whether the first terminal device is allowed to access the same-frequency cell of the first cell.

[0204] That is, in some embodiments, when the third indication information indicates that the terminal device corresponding to the first type is not allowed to access the first cell, and is allowed to access the same-frequency cell of the first cell, the first terminal device determines that it is not allowed to access the first cell, and is allowed to access the same-frequency cell of the first cell; or,

[0205] When the third indication information indicates that the terminal device corresponding to the first type is not allowed to access the first cell and is not allowed to access the same-frequency cell of the first cell, the first terminal device determines that it is not allowed to access the first cell and is not allowed to access the same-frequency cell of the first cell.

[0206] Exemplarily, Figure 9 shows a schematic diagram four of a scenario in which a first terminal device determines whether it is allowed to access a first cell. As shown in Figure 9, when the network device broadcasts an indication that a terminal device corresponding to the first type is not allowed to access the first cell, and is allowed to access a cell with the same frequency as the first cell, the first terminal device can determine that it is not allowed to access the first cell, and is allowed to access a cell with the same frequency as the first cell; when the network device broadcasts an indication that a terminal device corresponding to the first type is not allowed to access the first cell, and is not allowed to access a cell with the same frequency as the first cell, the first terminal device can determine that it is not allowed to access the first cell, and is not allowed to access a cell with the same frequency as the first cell.

[0207] It should be noted that, in an embodiment of the present application, the third indication information indicates that the terminal device corresponding to the first type is not allowed to access the first cell, and whether it is allowed to access the same-frequency cell of the first cell. It can be understood that the third indication information can indicate whether the terminal device corresponding to the first type is allowed to access the second-best cell of the current frequency when the first cell is the best cell of the current frequency and the terminal device corresponding to the first type is not allowed to access the first cell.

[0208] Through this method, when the first information includes third indication information, and the third indication information indicates that a terminal device corresponding to the first type is not allowed to access the first cell, and whether the terminal device corresponding to the first type is allowed to access a cell on the same frequency as the first cell, the first terminal device can determine that it is not allowed to access the first cell, and determine whether it is allowed to access a cell on the same frequency as the first cell. In this way, the network device can more flexibly control the access of the first terminal device, while also improving the utilization rate of network resources.

[0209] Method #E: When the first information includes fourth indication information, and the fourth indication information indicates that the terminal device corresponding to the first type fails in attempting to access the first cell at the current moment, the first terminal device can determine that the attempt to access the first cell at the current moment has failed.

[0210] Furthermore, in the case where the fourth indication information also indicates the minimum time interval from the current moment for the next allowed attempt to access the first cell, the first terminal device may determine the moment for the next allowed attempt to access the first cell.

[0211] It should be noted that the fourth indication information also indicates the minimum time interval from the current moment for the next allowed attempt to access the first cell. It can be understood that the fourth indication information implicitly indicates the moment when the first terminal device is allowed to attempt to access the first cell next time.

[0212] That is, in some embodiments, when the fourth indication information indicates that the terminal device corresponding to the first type has failed in its attempt to access the first cell at the current moment, and the minimum time interval allowed for the next attempt to access the first cell from the current moment, the first terminal device can determine that it is allowed to attempt to access the first cell at the next moment.

[0213] The difference between the next moment and the current moment is greater than the minimum time interval.

[0214] For example, FIG10 is a schematic diagram of a scenario five in which a first terminal device determines whether it is allowed to access a first cell, as provided in an embodiment of the present application. As shown in FIG10 , when a network device broadcasts an indication that a terminal device corresponding to the first type has failed in its attempt to access the first cell at the current moment, and the minimum time interval from the current moment for the next attempt to access the first cell allowed, the first terminal device may determine that it is allowed to attempt to access the first cell at the next moment.

[0215] By using this method, when the first information includes fourth indication information, the fourth indication information indicating that a terminal device corresponding to the first type has failed in its attempt to access the first cell at the current moment, and the minimum time interval allowed for the next attempt to access the first cell from the current moment, the first terminal device can determine the time when it is allowed to make the next attempt to access the first cell. In this way, the network device can more flexibly control the access of the first terminal device, while also improving the utilization rate of network resources.

[0216] It should be noted that the first terminal device can determine whether it is allowed to access the first cell based on any one of the above methods #A to #E. It is understandable that the first terminal device can also determine whether it is allowed to access the first cell based on multiple methods #A to #E.

[0217] Exemplarily, the first terminal device may determine whether it is allowed to access the first cell based on method #A and method #B. For example, when the configuration information configures uplink transmission resources corresponding to the first type, and the first indication information indicates that the terminal device corresponding to the first type is allowed to access the first cell, the first terminal device may determine that it is allowed to access the first cell. For another example, when the configuration information does not configure uplink transmission resources corresponding to the first type, and the first indication information indicates that the terminal device corresponding to the first type is not allowed to access the first cell, the first terminal device may determine that it is not allowed to access the first cell.

[0218] Exemplarily, the first terminal device may determine whether it is allowed to access the first cell based on method #B and method #C. For example, when the first indication information indicates that the terminal device corresponding to the first type is allowed to access the first cell, the first terminal device may determine that it is allowed to access the first cell. For another example, when the first indication information does not indicate that the terminal device corresponding to the first type is allowed to access the first cell, the second indication information may indicate the probability that the terminal device corresponding to the first type is allowed to access the first cell: when the random number of the first terminal device is less than or equal to the probability, the first terminal device determines that it is allowed to access the first cell; or, when the random number of the first terminal device is greater than the probability, the first terminal device determines that it is not allowed to access the first cell.

[0219] It should also be noted that the network device may also send the first information to other terminal devices other than the first terminal device. In this case, the other terminal devices may also use one or more of Methods #A to #E to determine whether they are allowed to access the first cell. This embodiment of the present application will not be further described.

[0220] An embodiment of the present application provides a communication method in which, after receiving first information from a network device, a first terminal device can determine whether access to a first cell is permitted based on the first information and a first type of the first terminal device. This allows the network device to more flexibly control access to the first terminal device and improves network resource utilization.

[0221] The communication method provided in the above embodiment is described in detail below in conjunction with specific application scenarios.

[0222] In an embodiment of the present application, the UE may determine whether it is allowed to access the current cell based on the following three possible implementations.

[0223] In a possible implementation, the UE may determine whether it is prohibited from accessing the current cell according to whether the uplink transmission resource configuration corresponding to its type is configured in a system message (ie, configuration information).

[0224] Accordingly, the NW can implicitly indicate whether the UE is prohibited from accessing the current cell by checking whether the uplink transmission resource configuration corresponding to the UE type exists in the system message. The detailed implementation process is as follows:

[0225] (1) In cellular systems, different types of UEs support different capabilities or transmit signals based on different signal waveforms. For example, the transmission signal waveform of ordinary NR UEs is OFDM, and the transmission signal waveform of zero-power UEs is based on OOK. If the coexistence of these two types of UEs is to be supported, the uplink transmission resources of these two types of UEs need to be differentiated. For another example, some zero-power UEs do not have the ability to independently generate RF signals, and their RF signal transmission can only rely on backscattering. The uplink transmission of this type of zero-power UE requires downlink signal triggering, so the NW needs to configure uplink transmission resources for backscattering; while some zero-power UEs can independently generate RF signals. This type of zero-power UE can mainly initiate uplink transmission, and the NW can configure active uplink transmission resources (such as PRACH resources and PUSCH resources) for this type of zero-power UE. Based on this, the NW needs to configure uplink transmission resource pools corresponding to different UE types in the system message.

[0226] It should be noted that the type to which the UE belongs may include the device type of the UE and / or the service type of the UE.

[0227] Furthermore, the method for distinguishing the device type to which the UE belongs may include one or more of the following:

[0228] According to whether the UE is a zero-power device;

[0229] In the case of a zero-power UE, the UE is determined based on whether it has the capability to independently generate radio frequency signals.

[0230] In the case that the UE is a zero-power device, it depends on whether the UE has an energy storage function.

[0231] (2) The UE can determine whether it is prohibited from accessing the current cell based on whether the uplink transmission resources corresponding to its type are broadcast:

[0232] If the uplink transmission resources corresponding to the type to which the UE belongs are broadcast, the UE can determine that it is not prohibited from accessing the current cell; or,

[0233] If the uplink transmission resources corresponding to the type to which the UE belongs are not broadcast, the UE may determine that it is prohibited from accessing the current cell.

[0234] Another possible implementation is that the NW can introduce a separate Cellbarred field for each UE type to explicitly indicate whether the UE is barred from accessing the current cell. The detailed implementation process is as follows:

[0235] (1) The NW can indicate access-related information for different UE types in the system message. The access-related information may include one or more of the following parameters:

[0236] Cellbarred (ie, first indication information): used to indicate whether the current cell is barred for access by UEs of the corresponding type.

[0237] IntraFreqReselection (ie, the third indication information): is used to indicate whether to allow the corresponding type of UE to select or reselect to the next best cell on the current frequency if the current cell is the best cell on the current frequency but the corresponding type of UE is not allowed to reside.

[0238] That is, IntraFreqReselection may be used to indicate whether a UE of a corresponding type is allowed to access a cell having the same frequency as the current cell when the UE of the corresponding type is not allowed to access the current cell.

[0239] It should be noted that the type to which the UE belongs may include the device type of the UE and / or the service type of the UE.

[0240] Furthermore, the method for distinguishing the device type to which the UE belongs may include one or more of the following:

[0241] According to whether the UE is a zero-power device;

[0242] In the case of a zero-power UE, the UE is determined based on whether it has the capability to independently generate radio frequency signals.

[0243] In the case that the UE is a zero-power device, it depends on whether the UE has an energy storage function.

[0244] (2) The UE determines whether it is barred from accessing the current cell based on the Cellbarred indication corresponding to its type.

[0245] When the Cellbarred corresponding to the UE's own type indicates that the current cell prohibits access by UE of this type, the UE can determine, based on the indication of the IntraFreqReselection corresponding to its own type, whether the UE is allowed to select or reselect to the second-best cell on the current frequency if the current cell is the best cell for the current frequency.

[0246] Another possible implementation is that the NW can introduce separate UAC parameter configurations for different UE types to indicate whether the UE is prohibited from accessing the current cell. The detailed implementation process is as follows:

[0247] (1) The NW may broadcast UAC parameter configurations for different UE types in system messages. The UAC parameter configurations may include one or more of the following parameters:

[0248] (i) the probability that an access attempt initiated by each type of UE is allowed to pass (UAC-BarringFactor (i.e., the second indication information);

[0249] (ii) UAC-BarringTime (i.e., the fourth indication information) is the minimum time interval between a failed access attempt initiated by each type of UE and the next access attempt initiated;

[0250] (iii) UAC-Barring (ie, first indication information) indicating whether each type of UE is allowed to make an access attempt.

[0251] It should be noted that the type to which the UE belongs may include the device type of the UE and / or the service type of the UE.

[0252] Furthermore, the method for distinguishing the device type to which the UE belongs may include one or more of the following:

[0253] According to whether the UE is a zero-power device;

[0254] In the case of a zero-power UE, the UE is determined based on whether it has the capability to independently generate radio frequency signals.

[0255] In the case that the UE is a zero-power device, it depends on whether the UE has an energy storage function.

[0256] (2) The UE performs ABC Checking according to the UAC parameter configuration corresponding to its type.

[0257] In the embodiments of this application, the technical solutions involved mainly include:

[0258] -NW introduces separate Cellbarred explicit indication for different types of UEs.

[0259] - The UE determines whether it is barred from the current cell based on whether the uplink transmission resource configuration corresponding to its type is present in the system message. In other words, the NW can implicitly indicate whether the UE is barred from the current cell based on whether the uplink transmission resource configuration corresponding to the UE type is present in the system message.

[0260] -NW introduces separate UAC parameter configurations for different types of UEs.

[0261] An embodiment of the present application provides a method for controlling UE access to a network network in zero-power communication. Through this method, the network network uses different access control indicators / parameters for different UE types, thereby enabling more flexible control of access to various types of UEs and better utilization of network resources.

[0262] 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.

[0263] It should also be understood that in the various method embodiments of the present application, the size of the serial numbers of the above-mentioned processes does not mean 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.

[0264] Based on the same inventive concept as the previous embodiment, FIG11 is a schematic diagram of a structure of a communication device provided in an embodiment of the present application, which is applied to a first terminal device. As shown in FIG11 , the communication device 1100 may include a receiving unit 1110, wherein:

[0265] The receiving unit 1110 is configured to receive first information, where the first information is used to indicate whether a terminal device corresponding to each of one or more types is allowed to access the first cell.

[0266] In some embodiments, the first information includes one or more of the following:

[0267] Configuration information, where the configuration information configures whether corresponding uplink transmission resources exist for each of one or more types;

[0268] First indication information, the first indication information indicating whether a terminal device corresponding to each type of one or more types is allowed to access the first cell;

[0269] Second indication information, where the second indication information indicates a probability that a terminal device corresponding to each of one or more types is allowed to access the first cell;

[0270] Third indication information, where the third indication information indicates whether terminal devices corresponding to some types of one or more types are allowed to access a same-frequency cell of the first cell when the terminal devices are not allowed to access the first cell; and

[0271] The fourth indication information indicates the minimum time interval from the current moment for the terminal device corresponding to some types of one or more types to be allowed to make the next attempt to access the first cell if the terminal device fails to access the first cell at the current moment.

[0272] In some embodiments, whether the first terminal device is allowed to access the first cell is determined based on the first information and a first type of the first terminal device, where the first type is one of one or more types.

[0273] In some embodiments, the first information includes configuration information. As shown in FIG11 , the communication device 1100 may include a processing unit 1120, wherein:

[0274] The processing unit 1120 is configured to determine that access to the first cell is allowed when the configuration information indicates configuration of uplink transmission resources corresponding to the first type; or

[0275] In a case where the configuration information does not configure uplink transmission resources corresponding to the first type, it is determined that access to the first cell is not allowed.

[0276] In some embodiments, the first information includes first indication information, and the processing unit 1120 is further configured to determine that the terminal device corresponding to the first type is allowed to access the first cell when the first indication information indicates that the terminal device is allowed to access the first cell; or

[0277] When the first indication information indicates that the terminal device corresponding to the first type is not allowed to access the first cell, it is determined that the terminal device is not allowed to access the first cell.

[0278] In some embodiments, the first information includes second indication information, the second indication information indicates a probability that a terminal device corresponding to the first type is allowed to access the first cell, and the processing unit 1120 is further configured to determine that the terminal device is allowed to access the first cell if the random number of the first terminal device is less than or equal to the probability; or

[0279] When the random number of the first terminal device is greater than the probability, it is determined that the terminal device is not allowed to access the first cell.

[0280] In some embodiments, the first information includes third indication information, and the processing unit 1120 is further configured to determine that the terminal device corresponding to the first type is not allowed to access the first cell and is allowed to access the same-frequency cell of the first cell when the third indication information indicates that the terminal device corresponding to the first type is not allowed to access the first cell and is allowed to access the same-frequency cell of the first cell; or,

[0281] When the third indication information indicates that the terminal device corresponding to the first type is not allowed to access the first cell, and is not allowed to access the same-frequency cell of the first cell, it is determined that the terminal device is not allowed to access the first cell, and is not allowed to access the same-frequency cell of the first cell.

[0282] In some embodiments, the first information includes fourth indication information, and the processing unit 1120 is further configured to determine that the terminal device corresponding to the first type fails to attempt to access the first cell at the current moment, and the minimum time interval allowed for the next attempt to access the first cell from the current moment is determined; wherein the difference between the next moment and the current moment is greater than the minimum time interval.

[0283] In some embodiments, the type of the terminal device includes a device type of the terminal device and / or a service type of the terminal device.

[0284] In some embodiments, the device type of the terminal device is determined based on one or more of the following:

[0285] Whether the terminal device is a zero-power device;

[0286] In the case of a zero-power terminal device, whether the terminal device is capable of independently generating radio frequency signals; and

[0287] In the case where the terminal device is a zero-power device, whether the terminal device can store energy.

[0288] An embodiment of the present application provides a communication device, in which a first terminal device can receive first information from a network device, and the first information is used to characterize whether a terminal device corresponding to each type of one or more types is allowed to access a first cell. In this way, after the first terminal device receives the first information, it can know whether the terminal device corresponding to each type is allowed to access the first cell; that is, after the first terminal device receives the first information, it can know the type of terminal device that is allowed to access the first cell, and the type of terminal device that is not allowed to access the first cell. In this way, the first terminal device can subsequently determine whether it is allowed to access the first cell based on the first information, thereby enabling the network device to more flexibly control the access of the first terminal device, while also improving the utilization rate of network resources.

[0289] Those skilled in the art should understand that the relevant description of the above-mentioned communication device in the embodiment of the present application can be understood with reference to the relevant description of the communication method in the embodiment of the present application.

[0290] Based on the same inventive concept as the previous embodiment, FIG12 is a second schematic diagram of the structure of a communication device provided in an embodiment of the present application, which is applied to a network device. As shown in FIG12 , the communication device 1200 may include a sending unit 1210, wherein:

[0291] The sending unit 1210 is configured to send first information, where the first information is used to indicate whether a terminal device corresponding to each type of one or more types is allowed to access the first cell.

[0292] In some embodiments, the first information includes one or more of the following:

[0293] Configuration information, where the configuration information configures whether corresponding uplink transmission resources exist for each of one or more types;

[0294] First indication information, the first indication information indicating whether a terminal device corresponding to each type of one or more types is allowed to access the first cell;

[0295] Second indication information, where the second indication information indicates a probability that a terminal device corresponding to each of one or more types is allowed to access the first cell;

[0296] Third indication information, where the third indication information indicates whether terminal devices corresponding to some types of one or more types are allowed to access a same-frequency cell of the first cell when the terminal devices are not allowed to access the first cell; and

[0297] The fourth indication information indicates the minimum time interval from the current moment for the terminal device corresponding to some types of one or more types to be allowed to make the next attempt to access the first cell if the terminal device fails to access the first cell at the current moment.

[0298] In some embodiments, the type of the terminal device includes a device type of the terminal device and / or a service type of the terminal device.

[0299] In some embodiments, the device type of the terminal device is determined based on one or more of the following:

[0300] Whether the terminal device is a zero-power device;

[0301] In the case of a zero-power terminal device, whether the terminal device is capable of independently generating radio frequency signals; and

[0302] In the case where the terminal device is a zero-power device, whether the terminal device can store energy.

[0303] An embodiment of the present application provides a communication device, wherein a network device can send first information, the first information being used to indicate whether a terminal device corresponding to each of one or more types is allowed to access a first cell. In this way, the network device can notify a terminal device (such as the first terminal device) of the types of terminal devices that are allowed to access the first cell, as well as the types of terminal devices that are not allowed to access the first cell. In this way, the network device can more flexibly control the access of terminal devices, while also improving the utilization of network resources.

[0304] Those skilled in the art should understand that the relevant description of the above-mentioned communication device in the embodiment of the present application can be understood with reference to the relevant description of the communication method in the embodiment of the present application.

[0305] Figure 13 is a schematic structural diagram of a communication device 1300 provided in an embodiment of the present application. As shown in Figure 13, the communication device 1300 includes a processor 1310 and a memory 1320. The memory 1320 can store computer programs, and the processor 1310 can call and execute the computer programs from the memory 1320 to implement the methods in the embodiments of the present application.

[0306] The memory 1320 may be a separate device independent of the processor 1310 , or may be integrated into the processor 1310 .

[0307] In some embodiments, as shown in FIG13 , the communication device 1300 may further include a transceiver 1330 , and the processor 1310 may control the transceiver 1330 to communicate with other devices. Specifically, the transceiver 1330 may send information or data to other devices, or receive information or data sent by other devices.

[0308] The transceiver 1330 may include a transmitter and a receiver. The transceiver 1330 may further include an antenna, and the number of antennas may be one or more.

[0309] In some embodiments, the embodiments of the present application further provide another composition of a communication device, wherein the communication device may include the communication device 1100 or the communication device 1200 described in any one of the aforementioned embodiments.

[0310] In some embodiments, the communication device may be the first terminal device in the embodiment of the present application, and the processor 1310 may call and run a computer program from the memory 1320 to implement the method implemented by the first terminal device in the embodiment of the present application. For the sake of brevity, it will not be repeated here.

[0311] In some embodiments, the communication device may be a network device in an embodiment of the present application, and the processor 1310 may call and run a computer program from the memory 1320 to implement the method implemented by the network device in an embodiment of the present application. For the sake of brevity, it will not be repeated here.

[0312] Figure 14 is a schematic structural diagram of a chip provided in an embodiment of the present application. As shown in Figure 14, chip 1400 includes a processor 1410, which can call and run a computer program from a memory to implement the method in the embodiment of the present application.

[0313] In some embodiments, as shown in FIG14 , the chip 1400 may further include a memory 1420. The processor 1410 may call and execute a computer program from the memory 1420 to implement the method in the embodiment of the present application.

[0314] The memory 1420 may be a separate device independent of the processor 1410 , or may be integrated into the processor 1410 .

[0315] In some embodiments, the chip 1400 may further include an input interface 1430. The processor 1410 may control the input interface 1430 to communicate with other devices or chips, and specifically, may obtain information or data sent by other devices or chips.

[0316] In some embodiments, the chip 1400 may further include an output interface 1440. The processor 1410 may control the output interface 1440 to communicate with other devices or chips, and specifically, may output information or data to other devices or chips.

[0317] In some embodiments, the chip can be applied to the network equipment in the embodiments of the present application. For the sake of brevity, it will not be described here.

[0318] In some embodiments, the chip can be applied to the first terminal device in the embodiments of the present application. For the sake of brevity, it will not be described here.

[0319] 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.

[0320] FIG15 is a schematic block diagram of a communication system 1500 provided in an embodiment of the present application. As shown in FIG15 , the communication system 1500 may include a terminal device 1510 and a network device 1520 .

[0321] The terminal device 1510 can be used to implement the corresponding functions implemented by the first terminal device in the above method, and the network device 1520 can be used to implement the corresponding functions implemented by the network device in the above method. For the sake of brevity, they are not described here in detail.

[0322] It is 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 implemented 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.

[0323] It is also 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 described herein is intended to include, but is not limited to, these and any other suitable types of memory.

[0324] It is also 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). 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.

[0325] An embodiment of the present application also provides a computer-readable storage medium for storing a computer program.

[0326] In some embodiments, the computer-readable storage medium can be applied to the first terminal device in the embodiments of the present application, and when the computer program is executed by at least one processor, it implements the corresponding processes implemented by the first terminal device in the various methods of the embodiments of the present application. For the sake of brevity, they will not be repeated here.

[0327] In some embodiments, the computer-readable storage medium can be applied to the network device in the embodiments of the present application, and when the computer program is executed by at least one processor, it implements the corresponding processes implemented by the network device in the various methods of the embodiments of the present application. For the sake of brevity, they are not repeated here.

[0328] An embodiment of the present application also provides a computer program product, including computer program instructions.

[0329] In some embodiments, the computer program product can be applied to the first 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 first terminal device in the various methods of the embodiments of the present application. For the sake of brevity, they will not be repeated here.

[0330] In some embodiments, the computer program product can be applied to the network device in the embodiments of the present application, and the computer program instructions enable the computer to execute the corresponding processes implemented by the network device in the various methods of the embodiments of the present application. For the sake of brevity, they will not be repeated here.

[0331] The embodiment of the present application also provides a computer program.

[0332] In some embodiments, the computer program can be applied to the first 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 first terminal device in the various methods of the embodiments of the present application. For the sake of brevity, they will not be repeated here.

[0333] In some embodiments, the computer program can be applied to the network device in the embodiments of the present application. When the computer program runs on a computer, the computer executes the corresponding processes implemented by the network device in the various methods of the embodiments of the present application. For the sake of brevity, they will not be repeated here.

[0334] Those skilled in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed in this application 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 to be beyond the scope of this application.

[0335] Those skilled in the art will clearly understand that, for the convenience and brevity of description, the specific working processes of the above-described devices and units can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0336] In the several embodiments provided in this application, it should be understood that the disclosed 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.

[0337] 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.

[0338] 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.

[0339] 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 network device, 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.

[0340] It should be noted that, in this application, the terms "comprises," "includes," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, article, or apparatus comprising a series of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or apparatus comprising the element.

[0341] The serial numbers of the above embodiments of the present application are for description only and do not represent the advantages or disadvantages of the embodiments.

[0342] The methods disclosed in the several method embodiments provided in this application can be arbitrarily combined without conflict to obtain new method embodiments.

[0343] The features disclosed in the several product embodiments provided in this application can be arbitrarily combined without conflict to obtain new product embodiments.

[0344] The features disclosed in the several method or device embodiments provided in this application can be arbitrarily combined without conflict to obtain new method embodiments or device embodiments.

[0345] 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 this application should be included in the scope of protection of this application. Therefore, the scope of protection of this application should be based on the scope of protection of the claims.

Claims

1. A communication method, the method comprising: The first terminal device receives first information, where the first information is used to indicate whether a terminal device corresponding to each type of one or more types is allowed to access the first cell.

2. The method according to claim 1, wherein: The first information includes one or more of the following: Configuration information, wherein the configuration information configures uplink transmission resources corresponding to some of the one or more types; first indication information, where the first indication information indicates whether a terminal device corresponding to each of the one or more types is allowed to access the first cell; second indication information, where the second indication information indicates a probability that a terminal device corresponding to each of the one or more types is allowed to access the first cell; third indication information, wherein the third indication information indicates whether terminal devices corresponding to some types of the one or more types are allowed to access a same-frequency cell of the first cell when the terminal devices corresponding to some types of the one or more types are not allowed to access the first cell; and The fourth indication information indicates the minimum time interval for the next time a terminal device corresponding to some types among the one or more types is allowed to attempt to access the first cell from the current moment if the terminal device fails to access the first cell at the current moment.

3. The method according to claim 1 or 2, wherein: Whether the first terminal device is allowed to access the first cell is determined based on the first information and a first type of the first terminal device, where the first type is one of the one or more types.

4. The method according to claim 3, wherein: The first information includes the configuration information, and the method further includes: In a case where the configuration information configures uplink transmission resources corresponding to the first type, the first terminal device determines that it is allowed to access the first cell; or, In a case where the configuration information does not configure uplink transmission resources corresponding to the first type, the first terminal device determines that it is not allowed to access the first cell.

5. The method according to claim 3 or 4, wherein: The first information includes the first indication information, and the method further includes: In a case where the first indication information indicates that the terminal device corresponding to the first type is allowed to access the first cell, the first terminal device determines that it is allowed to access the first cell; or, When the first indication information indicates that the terminal device corresponding to the first type is not allowed to access the first cell, the first terminal device determines that it is not allowed to access the first cell.

6. The method according to any one of claims 3 to 5, wherein: The first information includes the second indication information, where the second indication information indicates a probability that a terminal device corresponding to the first type is allowed to access the first cell, and the method further includes: In a case where the random number of the first terminal device is less than or equal to the probability, the first terminal device determines that it is allowed to access the first cell; or, When the random number of the first terminal device is greater than the probability, the first terminal device determines that it is not allowed to access the first cell.

7. The method according to any one of claims 3 to 6, wherein: The first information includes the third indication information, and the method further includes: In a case where the third indication information indicates that the terminal device corresponding to the first type is not allowed to access the first cell, and is allowed to access a cell with the same frequency as the first cell, the first terminal device determines that it is not allowed to access the first cell, and is allowed to access a cell with the same frequency as the first cell; or, When the third indication information indicates that the terminal device corresponding to the first type is not allowed to access the first cell, and is not allowed to access the same-frequency cell of the first cell, the first terminal device determines that it is not allowed to access the first cell, and is not allowed to access the same-frequency cell of the first cell.

8. The method according to any one of claims 3 to 7, wherein: The first information includes the fourth indication information, and the method further includes: In the case where the fourth indication information indicates that the terminal device corresponding to the first type fails to access the first cell at the current moment, and the minimum time interval allowed for the next attempt to access the first cell from the current moment, the The first terminal device determines that it is allowed to attempt to access the first cell at a next moment; The difference between the next moment and the current moment is greater than the minimum time interval.

9. The method according to any one of claims 1 to 8, wherein: The type of the terminal device includes the device type of the terminal device and / or the service type of the terminal device.

10. The method according to claim 9, wherein: The device type of the terminal device is determined based on one or more of the following: Whether the terminal device is a zero-power consumption device; In the case where the terminal device is a zero-power consumption device, whether the terminal device is capable of independently generating a radio frequency signal; as well as, In the case where the terminal device is a zero-power consumption device, whether the terminal device is capable of storing energy.

11. A communication method, the method comprising: The network device sends first information, where the first information is used to indicate whether a terminal device corresponding to each type of one or more types is allowed to access the first cell.

12. The method according to claim 11, wherein: The first information includes one or more of the following: Configuration information, wherein the configuration information configures uplink transmission resources corresponding to some of the one or more types; first indication information, where the first indication information indicates whether a terminal device corresponding to each of the one or more types is allowed to access the first cell; second indication information, where the second indication information indicates a probability that a terminal device corresponding to each of the one or more types is allowed to access the first cell; third indication information, wherein the third indication information indicates whether terminal devices corresponding to some types of the one or more types are allowed to access a same-frequency cell of the first cell when the terminal devices corresponding to some types of the one or more types are not allowed to access the first cell; and The fourth indication information indicates the minimum time interval for the next time a terminal device corresponding to some types among the one or more types is allowed to attempt to access the first cell from the current moment if the terminal device fails to access the first cell at the current moment.

13. The method according to claim 11 or 12, wherein: The type of the terminal device includes the device type of the terminal device and / or the service type of the terminal device.

14. The method according to claim 13, wherein: The device type of the terminal device is determined based on one or more of the following: Whether the terminal device is a zero-power consumption device; In the case where the terminal device is a zero-power consumption device, whether the terminal device is capable of independently generating a radio frequency signal; as well as, In the case where the terminal device is a zero-power consumption device, whether the terminal device is capable of storing energy.

15. A communication device, comprising: The receiving unit is configured to receive first information, where the first information is used to indicate whether a terminal device corresponding to each type of one or more types is allowed to access the first cell.

16. A communication device, the device comprising: The sending unit is configured to send first information, where the first information is used to indicate whether a terminal device corresponding to each type of one or more types is allowed to access the first cell.

17. A communication device, wherein: include: 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 as claimed in any one of claims 1 to 10; or, to execute the method as claimed in any one of claims 11 to 14.

18. A chip, wherein: include: A processor, configured to call and run a computer program from a memory, so that a device equipped with the chip executes a method as claimed in any one of claims 1 to 10; or, executes a method as claimed in any one of claims 11 to 14.

19. A computer-readable storage medium, wherein: The computer storage medium stores a computer program, and when the computer program is executed by at least one processor, the method according to any one of claims 1 to 10 is implemented; or the method according to any one of claims 11 to 14 is implemented.

20. A computer program product, comprising computer program instructions, the computer program instructions causing a computer to execute the method according to any one of claims 1 to 10; or to execute the method according to any one of claims 11 to 14.

21. A computer program, the computer program causing a computer to execute the method according to any one of claims 1 to 10; or to execute the method according to any one of claims 11 to 14.

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