A method, device and system for indicating access information

Abstract

The present application relates to the field of wireless communications, and in particular to an access method in a wireless communication system. It is used to solve the problem in the prior art that a network device cannot flexibly indicate access to a certain type or type of terminal device, and prohibits access to another type or types of terminal devices. The method includes: the network device sends at least one first message to a first terminal device, and the at least one first message is used to indicate at least one of a first access capability and a first access permission. The first terminal device determines whether the network device has the ability to access the first terminal device and / or whether to allow the first terminal device to access based on the at least one first message.

Description

Technical Field

[0001] The present invention relates to the field of wireless communications, and in particular to a method for indicating access information in a wireless communication system. Background Art

[0002] In the prior art, when a terminal device attempts to access a cell, it detects the access-related information of the network device. When the terminal device receives a message that the network device prohibits access, the terminal device attempts to access other cells. The access prohibition message configured by the network device is sent to the terminal device in a broadcast manner. This access method cannot flexibly indicate that one or more types of terminal devices access the cell, and another or more types of terminal devices are prohibited from accessing the cell. Summary of the invention

[0003] The present application provides a method for indicating access information, which is used to solve the problem in the prior art that network equipment cannot flexibly indicate a certain type or types of terminal equipment to access a cell, and prohibits one or more other terminal equipment from accessing a cell.

[0004] In a first aspect, the present application provides a communication method, and the execution subject of the method can be a terminal device or a chip in the terminal device. The following description is taken as an example that the execution subject is a terminal device. The first terminal device receives at least one first information from a network device, and the at least one first information is used to indicate at least one of a first access capability and a first access permission. The first access capability is whether the network device supports access of the first terminal device, and the first access permission is whether the network device allows access to the first terminal device. The first terminal device determines whether the network device supports access of the first terminal device and / or determines whether the network device allows access to the first terminal device based on the at least one first information.

[0005] Based on this solution, the network device indicates to the first terminal device through at least one first information whether the network device is capable of supporting access of the first terminal device and / or whether to allow access of the first terminal device, wherein when the network device does not support access of the first terminal device, the network device does not have the capability of accessing a terminal device of the type to which the first terminal device belongs, and when the network device does not allow access of the first terminal device, the network device has the capability of accessing the first terminal device but does not allow access of the first terminal device.

[0006] In an optional manner, the at least one first information includes one or more bits, and the at least one first information is used to indicate one or more of the following:

[0007] The first terminal device access is not supported;

[0008] The first terminal device is not allowed to access;

[0009] Allowing a first terminal device to access, and the first terminal device receiving information based on a first resource;

[0010] Allowing a first terminal device to access, and the first terminal device receiving information based on a second resource;

[0011] Allowing a first terminal device to access, and the first terminal device receives information based on a third resource;

[0012] The first terminal device is not allowed to access within the first time range;

[0013] The first terminal device is not allowed to access within the second time range;

[0014] The first terminal device is not allowed to access within the third time range.

[0015] Among them, the first resource, the second resource and the third resource are different resources. The first time range, the second time range and the third time range are three different time ranges. In the above manner, the network device can configure three or more resources for the first terminal device to access. Through at least one first information, the first terminal device determines based on which resource to access the network device, or understands that based on which resource to receive information sent by the network device and / or send information to the network device. The network device more flexibly indicates the resources corresponding to the access network device of the first terminal device, avoiding the problem of resource congestion caused by too many terminal devices accessing through the same resource. It is conducive to meeting the load balancing requirements when the first terminal device accesses the network device. The network device can limit the time range of the terminal device's prohibited access according to the terminal device type by pre-configuring different time ranges, which is also conducive to the load balancing of the network device. Alternatively, the network device can define different time ranges for different terminal device types according to different application scenarios to meet the load balancing requirements of the network device. If the first terminal device detects that the network device does not support its access, it will no longer attempt to access the network device, or will no longer attempt to access the network device within a preset time, which is conducive to saving energy consumption of the terminal device.

[0016] In an optional manner, at least one first information includes 1 bit, the first bit state of the 1 bit indicates that the first terminal device access is not supported, the second bit state of the 1 bit indicates that the first terminal device access is allowed, and the first terminal device receives information based on the first resource.

[0017] In an optional manner, at least one first information includes 1 bit, the first bit state of the 1 bit indicates that the first terminal device receives information based on the first resource, and the second bit state indicates that the first terminal device receives information based on the second resource.

[0018] In an optional manner, at least one first information includes 2 bits, the first bit state of the 2 bits indicates that the first terminal device is not allowed to access, the second bit state of the 2 bits indicates that the first terminal device is allowed to access, and the first terminal device receives information based on the first resource, the third bit state of the 2 bits indicates that the first terminal device is allowed to access, and the first terminal device receives information based on the second resource, and the fourth bit state of the 2 bits indicates that the first terminal device is allowed to access, and the first terminal device receives information based on the third resource.

[0019] In an optional manner, at least one first information includes 2 bits, a first bit state of the 2 bits indicates that the network device supports access by a first terminal device; a second bit state of the 2 bits indicates that the network device does not support access by the first terminal device; a third bit state of the 2 bits indicates that access by the first terminal device is allowed, and the first terminal device receives information based on the first resource, and a fourth bit state indicates that access by the first terminal device is allowed, and the first terminal device receives information based on the second resource.

[0020] In an optional manner, at least one bit state of at least one first information indicates one or more of time domain position information, frequency domain position information, code domain position information, resource index, time domain resource offset, frequency domain resource offset, code domain resource offset, power configuration, and beam resources of the first resource, the second resource, or the third resource.

[0021] In an optional manner, the first resource is a control resource set, a random access resource or a synchronization information resource, and the second resource and the third resource are two types of time domain position information, frequency domain position information, code domain position information, resource index, time domain resource offset value, frequency domain resource offset value, code domain resource offset value, power configuration or beam resource that are different from the first resource.

[0022] In an optional manner, the first information may also indicate the search space and / or control channel parameters of the first terminal device.

[0023] In an optional manner, the at least one first information includes one or more bits, and the at least one first information is used to indicate one or more of the following:

[0024] The first terminal device access is not supported, and the second terminal device access is not supported;

[0025] The first terminal device access is not supported, but the second terminal device access is supported;

[0026] Supports access by the first terminal device, but does not support access by the second terminal device;

[0027] The first terminal device is not allowed to access, and the second terminal device is not allowed to access;

[0028] The first terminal device is not allowed to access, and the second terminal device is allowed to access based on the first resource;

[0029] The first terminal device is not allowed to access, and the second terminal device is allowed to access based on the second resource;

[0030] Allowing the first terminal device to access based on the first resource, and not allowing the second terminal device to access;

[0031] Allowing the first terminal device to access based on the second resource, and not allowing the second terminal device to access;

[0032] Allowing the first terminal device to access, allowing the second terminal device to access, and the first terminal device and the second terminal device to access based on the first resource;

[0033] The first terminal device is allowed to access, the second terminal device is allowed to access, and the first terminal device accesses based on the first resource, and the second terminal device accesses based on the second resource.

[0034] Among them, the first characteristics of the second terminal device and the first terminal device are different, and the first resource and the second resource are different. The first characteristic may include one or more of the number of resources supported or configured by the terminal device, the number of transmitting antenna ports and / or the number of receiving antenna ports, the number of RF channels, the number of HARQ processes, the supported peak rate, application scenarios, latency requirements, and processing capabilities. The number of resources may be RB, RE, subcarrier, RB group, REG bundle, control channel element, subframe, radio frame, time slot, mini time slot and / or number of symbols. In the above manner, when there are two or more terminal devices with different first characteristics in the communication system, or when it is understood that there are two types of terminal devices in the communication system, the network device can indicate whether the first type of terminal device and / or the second type of terminal device is allowed to access through at least one first information. Furthermore, the resources corresponding to the two types of terminal devices accessing the network device may be the same or different. The indication method is more flexible.

[0035] In an optional manner, at least one bit state of at least one first information indicates one or more of the time domain position information, frequency domain position information, code domain position information, resource index, time domain resource offset, frequency domain resource offset, code domain resource offset, power configuration, and beam resources of the first resource or the second resource.

[0036] In an optional manner, the first resource is a control resource set, a random access resource or a synchronization information resource, and the second resource is two types of time domain position information, frequency domain position information, code domain position information, resource index, time domain resource offset value, frequency domain resource offset value, code domain resource offset value, power configuration or beam resource that are different from the first resource. In the above manner, the network device can configure two or more resources for access by the first type of terminal device and / or the second type of terminal device.

[0037] In an optional manner, at least one first information is included in a master information block MIB; or, at least one first information is included in downlink control information DCI; or, at least one first information is included in a system information block SIB.

[0038] In an optional manner, the communication frequency between the first terminal device and the network device is within frequency range 1, and at least one first information is included in the master information block MIB; or, the communication frequency between the first terminal device and the network device is within frequency range 2, and at least one first information is included in the downlink control information DCI or the system information block SIB. The above manner utilizes available bits in different frequency ranges to better adapt to scenarios in different frequency ranges.

[0039] In an optional manner, one first information among the at least one first information is included in a master information block MIB, and another first information among the at least one first information is included in downlink control information or a system information block.

[0040] In an optional manner, the communication frequency between the first terminal device and the network device is within frequency range 2.

[0041] In an optional manner, the frequency in frequency range 1 is less than the first frequency, the frequency in frequency range 2 is greater than the first frequency, and the first frequency is 7125 MHz.

[0042] In an optional manner, the frequencies in the frequency range 1 are between 410 MHz and 7125 MHz, and the frequencies in the frequency range 2 are greater than 24250 MHz.

[0043] In an optional manner, at least one first information includes one first information, which indicates a first access capability and / or a first access permission; or, at least one first information includes two first information, one first information indicates a first access capability, and the other first information indicates a first access permission.

[0044] In an optional manner, the first information is included in a master information block or a system information block 1, at least one first information includes one or more bits of an operator reserved field cellReservedForoperatorUse, and / or a field reserved for other purposes cellReservedForOtherUse, and / or a compatibility reserved field cellReservedForFutureUse, and at least one first information indicates whether the network device supports access by the first terminal device. If at least one first information indicates that the network device supports access by the first terminal device, cellReservedForoperatorUse, or cellReservedForOtherUse, or cellReservedForFutureUse is not applied to the first terminal device.

[0045] In a second aspect, the present application provides a communication method, and the execution subject of the method can be a network device or a chip in the network device. The following description is taken as an example that the execution subject is a network device. The network device determines whether to support access of a first terminal device and / or determines whether the network device allows access of the first terminal device. The network device sends at least one first information to the terminal device, and the at least one first information is used to indicate at least one of a first access capability and a first access permission. The first access capability is whether the network device supports access of the first terminal device, and the first access permission is whether the network device allows access of the first terminal device.

[0046] Based on this solution, the network device determines whether to support the access of the first terminal device according to the hardware capability, software capability, or performance index. The network device determines whether to allow the first terminal device to access the network device according to the number of terminal devices accessed in the cell and the demand for load balancing. The first terminal device determines whether the network device is capable of supporting the access of the first terminal device and / or whether to allow the first terminal device to access through at least one first information, wherein when the network device does not support the access of the first terminal device, the network device does not have the ability to access a terminal device of the terminal device type to which the first terminal device belongs, and when the network device does not allow the first terminal device to access, the network device has the ability to access the first terminal device, but does not allow the first terminal device to access.

[0047] In an optional manner, the at least one first information includes one or more bits, and the at least one first information is used to indicate one or more of the following:

[0048] The first terminal device access is not supported;

[0049] The first terminal device is not allowed to access;

[0050] Allowing a first terminal device to access, and the first terminal device receiving information based on a first resource;

[0051] Allowing a first terminal device to access, and the first terminal device receiving information based on a second resource;

[0052] Allowing a first terminal device to access, and the first terminal device receives information based on a third resource;

[0053] The first terminal device is not allowed to access within the first time range;

[0054] The first terminal device is not allowed to access within the second time range;

[0055] The first terminal device is not allowed to access within the third time range.

[0056] Among them, the first resource, the second resource and the third resource are different resources. The first time range, the second time range and the third time range are three different time ranges. In the above manner, the network device can configure three or more resources for the first terminal device to access. Through at least one first information, the first terminal device determines based on which resource to access the network device, or understands that based on which resource to receive information sent by the network device and / or send information to the network device. The network device more flexibly indicates the resources corresponding to the access network device of the first terminal device, avoiding the problem of resource congestion caused by too many terminal devices accessing the same resource. It is conducive to meeting the load balancing requirements when the first terminal device accesses the network device. By pre-configuring different time ranges, the network device can limit the time range for prohibiting access of the terminal device according to the terminal device type, which is also conducive to the load balancing of the network device. Alternatively, the network device can define different time ranges for different terminal device types according to different application scenarios to meet the load balancing requirements of the network device.

[0057] In an optional manner, at least one first information includes 1 bit, the first bit state of the 1 bit indicates that the first terminal device access is not supported, the second bit state of the 1 bit indicates that the first terminal device access is allowed, and the first terminal device receives information based on the first resource.

[0058] In an optional manner, at least one first information includes 1 bit, the first bit state of the 1 bit indicates that the first terminal device receives information based on the first resource, and the second bit state indicates that the first terminal device receives information based on the second resource.

[0059] In an optional manner, at least one first information includes 2 bits, the first bit state of the 2 bits indicates that the first terminal device is not allowed to access, the second bit state of the 2 bits indicates that the first terminal device is allowed to access, and the first terminal device receives information based on the first resource, the third bit state of the 2 bits indicates that the first terminal device is allowed to access, and the first terminal device receives information based on the second resource, and the fourth bit state of the 2 bits indicates that the first terminal device is allowed to access, and the first terminal device receives information based on the third resource.

[0060] In an optional manner, at least one first information includes 2 bits, a first bit state of the 2 bits indicates that the network device supports access by a first terminal device; a second bit state of the 2 bits indicates that the network device does not support access by the first terminal device; a third bit state of the 2 bits indicates that access by the first terminal device is allowed, and the first terminal device receives information based on the first resource, and a fourth bit state indicates that access by the first terminal device is allowed, and the first terminal device receives information based on the second resource.

[0061] In an optional manner, at least one first information includes 1 bit, and the first information includes information in the master information block or the system information block 1. Optionally, at least one first information is carried by at least one bit in the operator reserved field cellReservedForoperatorUse, or at least one first information is carried by at least one bit in the other purpose reserved field cellReservedForOtherUse, or the first information is carried by at least one bit in the compatibility reserved field cellReservedForFutureUse. In this case, at least one first information is dedicated information of the first type of terminal device, and the dedicated information can be understood as information that can only be interpreted by the first type of terminal device, and other types of terminal devices cannot interpret the dedicated information. The first type of terminal device has the same first feature as the first terminal device.

[0062] In an optional manner, at least one bit state of at least one first information indicates one or more of time domain position information, frequency domain position information, code domain position information, resource index, time domain resource offset, frequency domain resource offset, code domain resource offset, power configuration, and beam resources of the first resource, the second resource, or the third resource.

[0063] In an optional manner, the first resource is a control resource set, a random access resource or a synchronization information resource, and the second resource and the third resource are two types of time domain position information, frequency domain position information, code domain position information, resource index, time domain resource offset value, frequency domain resource offset value, code domain resource offset value, power configuration or beam resource that are different from the first resource.

[0064] In an optional manner, the first information may also indicate the search space and / or control channel parameters of the first terminal device.

[0065] In an optional manner, the at least one first information includes one or more bits, and the at least one first information is used to indicate one or more of the following:

[0066] The first terminal device access is not supported, and the second terminal device access is not supported;

[0067] The first terminal device access is not supported, but the second terminal device access is supported;

[0068] Supports access by the first terminal device, but does not support access by the second terminal device;

[0069] The first terminal device is not allowed to access, and the second terminal device is not allowed to access;

[0070] The first terminal device is not allowed to access, and the second terminal device is allowed to access based on the first resource;

[0071] The first terminal device is not allowed to access, and the second terminal device is allowed to access based on the second resource;

[0072] Allowing the first terminal device to access based on the first resource, and not allowing the second terminal device to access;

[0073] Allowing the first terminal device to access based on the second resource, and not allowing the second terminal device to access;

[0074] Allowing the first terminal device to access, allowing the second terminal device to access, and the first terminal device and the second terminal device to access based on the first resource;

[0075] The first terminal device is allowed to access, the second terminal device is allowed to access, and the first terminal device accesses based on the first resource, and the second terminal device accesses based on the second resource.

[0076] Among them, the first characteristics of the second terminal device and the first terminal device are different, and the first resource and the second resource are different. The first characteristic may include one or more of the number of resources supported or configured by the terminal device, the number of transmitting antenna ports and / or the number of receiving antenna ports, the number of RF channels, the number of HARQ processes, the supported peak rate, application scenarios, latency requirements, and processing capabilities. The number of resources may be RB, RE, subcarrier, RB group, REG bundle, control channel element, subframe, radio frame, time slot, mini time slot and / or number of symbols. In the above manner, when there are two or more terminal devices with different first characteristics in the communication system, or when it is understood that there are two types of terminal devices in the communication system, the network device can indicate whether the first type of terminal device and / or the second type of terminal device is allowed to access through at least one first information. Furthermore, the resources corresponding to the two types of terminal devices accessing the network device may be the same or different. The indication method is more flexible.

[0077] In an optional manner, at least one bit state of at least one first information indicates one or more of the time domain position information, frequency domain position information, code domain position information, resource index, time domain resource offset, frequency domain resource offset, code domain resource offset, power configuration, and beam resources of the first resource or the second resource.

[0078] In an optional manner, the first resource is a control resource set, a random access resource or a synchronization information resource, and the second resource and the third resource are two types of time domain position information, frequency domain position information, code domain position information, resource index, time domain resource offset value, frequency domain resource offset value, code domain resource offset value, power configuration or beam resource that are different from the first resource.

[0079] In the above manner, the network device may configure two or more resources for access by the first type of terminal device and / or the second type of terminal device.

[0080] In an optional manner, at least one first information is included in a master information block MIB; or, at least one first information is included in downlink control information DCI; or, at least one first information is included in a system information block SIB.

[0081] In an optional manner, the communication frequency between the first terminal device and the network device is within frequency range 1, and at least one first information is included in the master information block MIB; or, the communication frequency between the first terminal device and the network device is within frequency range 2, and at least one first information is included in the downlink control information DCI or the system information block SIB. The above manner utilizes available bits in different frequency ranges to better adapt to scenarios in different frequency ranges.

[0082] In an optional manner, one first information among the at least one first information is included in a master information block MIB, and another first information among the at least one first information is included in downlink control information or a system information block.

[0083] In an optional manner, the communication frequency between the first terminal device and the network device is within frequency range 2.

[0084] In an optional manner, the frequency in frequency range 1 is less than the first frequency, the frequency in frequency range 2 is greater than the first frequency, and the first frequency is 7125 MHz.

[0085] In an optional manner, the frequencies in the frequency range 1 are between 410 MHz and 7125 MHz, and the frequencies in the frequency range 2 are greater than 24250 MHz.

[0086] In an optional manner, at least one first information includes one first information, which indicates a first access capability and / or a first access permission; or, at least one first information includes two first information, one first information indicates a first access capability, and the other first information indicates a first access permission.

[0087] In an optional manner, the first information is included in a master information block or a system information block 1, at least one first information includes one or more bits of an operator reserved field cellReservedForoperatorUse, and / or a field reserved for other purposes cellReservedForOtherUse, and / or a compatibility reserved field cellReservedForFutureUse, and at least one first information indicates whether the network device supports access by the first terminal device. If at least one first information indicates that the network device supports access by the first terminal device, cellReservedForoperatorUse, or cellReservedForOtherUse, or cellReservedForFutureUse is not applied to the first terminal device.

[0088] In a third aspect, the present application provides a communication device, and the beneficial effects can be found in the description of the first aspect and will not be repeated here. The communication device includes at least one processor and an interface circuit, and the interface circuit is used to provide input or output of instructions and / or data for the at least one processor. Optionally, the communication device also includes a memory, and the memory is used to store computer programs or instructions. At least one processor is coupled to the memory and the interface circuit. When the at least one processor executes the computer program or instruction, the communication device executes the method executed by the network device in the above method.

[0089] In a fourth aspect, the present application provides a communication device, and the beneficial effects can be found in the description of the second aspect and will not be repeated here. The communication device includes at least one processor and an interface circuit, and the interface circuit is used to provide the at least one processor with input or output of instructions and / or data. Optionally, the communication device also includes a memory, and the memory is used to store computer programs or instructions. At least one processor is coupled to the memory and the interface circuit. When the at least one processor executes the computer program or instruction, the communication device executes the method executed by the terminal device in the above method.

[0090] In a fifth aspect, a computer program product is provided, the computer program product comprising: a computer program code, when the computer program code is run, the method performed by the terminal device in the above aspects is executed.

[0091] A sixth aspect provides a computer program product, the computer program product comprising: a computer program code, when the computer program code is run, the method performed by the network device in the above aspects is executed.

[0092] In a seventh aspect, the present application provides a chip system, which includes a processor for implementing the functions of the network device in the above-mentioned methods. In one possible design, the chip system also includes a memory for storing program instructions and / or data. The chip system can be composed of a chip, or it can include a chip and other discrete devices.

[0093] In an eighth aspect, the present application provides a chip system, which includes a processor for implementing the functions of the terminal device in the above-mentioned methods. In a possible design, the chip system also includes a memory for storing program instructions and / or data. The chip system can be composed of a chip, or it can include a chip and other discrete devices.

[0094] In a ninth aspect, the present application provides a computer-readable storage medium storing a computer program, which, when executed, implements the methods performed by a terminal device in the above aspects.

[0095] In a tenth aspect, the present application provides a computer-readable storage medium storing a computer program, which, when executed, implements the methods performed by the network device in the above aspects. BRIEF DESCRIPTION OF THE DRAWINGS

[0096] The embodiments of the present invention will be described in more detail below with reference to the accompanying drawings:

[0097] Figure 1A schematic diagram showing a possible application scenario of an embodiment of the present invention is shown;

[0098] Figure 2 A schematic diagram of a flow chart of an indication method provided by the present application is shown;

[0099] Figure 3 A schematic diagram showing a flow chart of another indication method provided by the present application is shown;

[0100] Figure 4 A schematic diagram showing a flow chart of another indication method provided by the present application is shown;

[0101] Figure 5 A schematic diagram showing a flow chart of another indication method provided by the present application is shown;

[0102] Figure 6 A schematic structural diagram of a communication device provided by the present application is shown;

[0103] Figure 7 A schematic structural diagram of a network device provided by the present application is shown;

[0104] Figure 8 A schematic structural diagram of a terminal device provided by the present application is shown;

[0105] Fig. 9 A schematic diagram of a chip provided by the present application is shown. DETAILED DESCRIPTION

[0106] The network architecture and business scenarios described in the embodiments of the present invention are intended to more clearly illustrate the technical solutions of the embodiments of the present invention, and do not constitute a limitation on the technical solutions provided by the embodiments of the present invention. A person of ordinary skill in the art can appreciate that with the evolution of the network architecture and the emergence of new business scenarios, the technical solutions provided by the embodiments of the present invention are equally applicable to similar technical problems.

[0107] In the embodiments of the present invention, "multiple" refers to two or more. "And / or" describes the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. The character " / " generally indicates that the associated objects before and after are in an "or" relationship.

[0108] Figure 1 A possible application scenario schematic diagram of an embodiment of the present invention is shown. The communication system in the application scenario includes: a network device 10, and at least two types of terminal devices 20 and 30. The network device and the at least two types of terminal devices can communicate through one or more air interface technologies.

[0109] For a terminal device to access the NR network, it needs to go through processes such as cell search, obtaining system information, and random access. The terminal obtains information about the cell through the system information of the cell, thereby ensuring that it can work correctly in the cell after accessing the cell. During the cell search process, the terminal device needs to search for the synchronization signal block (SS / PBCH Block, SSB). The synchronization signal block contains the primary synchronization signal (PSS), the secondary synchronization signal (SSS), the demodulation reference signal (DMRS), and the physical broadcast channel (PBCH). Through SSB, the UE can obtain downlink synchronization, the physical-layer cell identity (PCI), and the new system information of the cell.

[0110] For a certain cell, the system information of the cell is effective for all terminal devices in the cell, which can be understood as the system information at the cell level. System information can be divided into a master information block (MIB) and multiple system information blocks (SIBs). After completing SSB decoding, the terminal device obtains the MIB information, which contains the field PDCCH-ConfigSIB1 used to indicate the control information configuration parameters for scheduling SIB1. The terminal device obtains the information of the SSB and control resource set through PDCCH-ConfigSIB1 by looking up the table, thereby obtaining the location of the physical downlink control channel (PDCCH). The PDCCH is used to schedule the physical downlink shared channel (PDSCH). The terminal device obtains the information indicated by SIB1 by decoding PDSCH.

[0111] It can be seen from the above description that MIB and SIB1 are necessary information for terminal devices to access a cell. Since MIB information is at the cell level, the network device can instruct the terminal device to prohibit access to the cell through the MIB information. However, in the prior art, when there are two or more types of terminal devices in a cell, the network device cannot allow only a certain type of terminal device to access the cell, while not allowing other types of terminal devices to access the cell. In addition, for some types of terminal devices, there may be a situation where the network device does not have the ability to support the access of this type of terminal device. At this time, the terminal device blindly attempts to access the cell, which not only fails to successfully access the cell, but also causes power consumption.

[0112] Based on the above, the present invention provides an access method, the principle of which is that a network device configures at least one first information for indicating whether the network device is capable of supporting access of a new type of terminal device and / or whether the network device allows access of a new type of terminal device. In this way, when there are two or more types of terminal devices in the communication system, access information of at least two types of terminal devices can be flexibly indicated.

[0113] Based on the process of a terminal device accessing a cell, the nouns or terms that may appear in the embodiments of the present invention are explained below, and the nouns or terms are also considered as part of the content of the invention.

[0114] 1. Master Information Block (MIB)

[0115] The MIB is carried in the physical broadcast channel PBCH. For a certain cell, the MIB contains reference and scheduling information of many system information blocks of the cell. The MIB message carries the most basic information, which is related to the decoding of the PDSCH channel. The terminal device can only use the parameters in the MIB to continue decoding the data in the PDSCH after decoding the MIB first. In the prior art, there is a CellBarred field in the MIB information, which is used to indicate whether the terminal device is allowed to access the cell. There is also a 1-bit spare field Spare in the MIB information, which does not indicate any information.

[0116] In the existing protocol, if the maximum number of SSBs in an SSB cycle is equal to 64, 3 bits are used in the PBCH field to indicate the index of the SSB. When the maximum number of SSBs in an SSB cycle is less than 64, only 1 bit is used in the PBCH field to indicate the index of the SSB. At this time, 2 bits are reserved.

[0117] 2. System Information Block (SIB)

[0118] The SIB contains system information elements. A SIB combines system information elements with the same properties, and different SIBs can have different characteristics. The SIB is contained in the PDSCH, which is scheduled by the corresponding PDCCH.

[0119] 3. Physical Downlink Control Channel (PDCCH)

[0120] PDCCH is used to carry downlink control information (DCI). PDCCH contains one or more control-channel elements (CCEs). The number of CCEs contained in PDCCH is determined by the aggregation level. The aggregation level and the number of CCEs contained in PDCCH can be shown in Table 1.

[0121] Table 1

[0122] Aggregation Level Number of CCEs 1 1 2 2 4 4 8 8 16 16

[0123] 4. Control Resource Set CORESET (Control Resource Set, CORESET)

[0124] A control resource set is used to represent a set of time-frequency resources that carry a PDCCH. A control resource set consists of several resource blocks (RBs) in the frequency domain and several symbols in the time domain. A terminal device can correspond to multiple control resource sets, and each control resource set can only bind one CCE to a resource element group (REG) mapping relationship. REG is the basic unit of PDCCH resource mapping. One REG is defined as one RB on one OFDM symbol, and one RB is defined as 12 consecutive subcarriers in frequency and one OFDM symbol in time domain. REG bundle is a new concept introduced by NR. REGs are first formed into REG bundles in a time-first mapping (TF) manner, and then interleaved or non-interleavedly mapped to control resources with REG bundle as the granularity. One REG bundle consists of a group of REGs that are continuous in the time domain and / or frequency domain. The size of one REG bundle is equal to the size of the REG in the frequency domain multiplied by the size of the OFDM symbol in the time domain.

[0125] For pdcch-ConfigSIB1 in the MIB information, different pdcch-ConfigSIB1 state values ​​correspond to different control resource set information. The terminal device obtains the possible time and frequency range of PDCCH through pdcch-ConfigSIB1, and detects all possible locations of PDCCH through blind monitoring until PDCCH is successfully decoded.

[0126] 5. Network equipment

[0127] The network device may be a base station, or an access point, or an access network device, or may refer to a device in the access network that communicates with a wireless terminal through one or more sectors on the air interface. The network device may be used to convert received air frames to and from IP packets, as a router between the wireless terminal and the rest of the access network, wherein the rest of the access network may include an Internet Protocol (IP) network. The network device may also coordinate the attribute management of the air interface. For example, the network device may be a base station (Base Transceiver Station, BTS) in Global System of Mobile communication (GSM) or Code Division Multiple Access (CDMA), or a base station (NodeB, NB) in Wideband Code Division Multiple Access (WCDMA), or an evolved base station (Evolutional Node B, eNB or eNodeB) in Long Term Evolution (LTE), or a relay station or access point, or a base station in a future 5G network, such as gNB, etc., which is not limited here. It should be noted that for 5G or NR systems, under one NR base station, there may be one or more transmission reception points (Transmission Reception Point, TRP), and all TRPs belong to the same cell, wherein each TRP and terminal can use the measurement reporting method described in the embodiment of the present application. In another scenario, the network device can also be divided into a control unit (Control Unit, CU) and a data unit (Data Unit, DU). Under one CU, there may be multiple DUs, wherein each DU and terminal can use the measurement reporting method described in the embodiment of the present application. The difference between the CU-DU separation scenario and the multi-TRP scenario is that the TRP is just a radio frequency unit or an antenna device, and the protocol stack function can be implemented in the DU, for example, the physical layer function can be implemented in the DU.

[0128] 6. Terminal Equipment

[0129] The terminal device can be a wireless terminal or a wired terminal. The wireless terminal can be a device that provides voice and / or other business data connectivity to users, a handheld device with wireless connection function, or other processing equipment connected to a wireless modem. The wireless terminal can communicate with one or more core networks via a radio access network (Radio Access Network, RAN). The wireless terminal can be a mobile terminal, such as a mobile phone (or "cellular" phone) and a computer with a mobile terminal, for example, a portable, pocket, handheld, computer-built-in or vehicle-mounted mobile device, which exchanges language and / or data with the radio access network. For example, Personal Communication Service (PCS) phones, cordless phones, Session Initiation Protocol (SIP) phones, Wireless Local Loop (WLL) stations, Personal Digital Assistants (PDA) and other devices. A wireless terminal may also be referred to as a system, a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, a remote terminal, an access terminal, a user terminal, a user agent, or a user device or user equipment, without limitation herein.

[0130] 7. Reduced Capability (REDCAP) Terminal Devices

[0131] In the New Radio (NR) communication system, there are application scenarios that require support for REDCAP terminal devices. REDCAP terminal devices generally have narrower bandwidth, fewer antenna ports, lower processing power, longer processing time, and / or lower transmission rate, etc. In addition, REDCAP terminal devices have longer battery life, lower processing complexity and / or lower cost.

[0132] 8. Radio Network Temporary Identifier (RNTI)

[0133] RNTI is a network device configuration used to identify a connected terminal device in a cell, a group of terminal devices in a paging scenario, and / or a special wireless channel. Different types of RNTI work by scrambling the cyclic redundancy check (CRC) part of the downlink control information (DCI) of the wireless channel. DCI is contained in the physical downlink control channel (PDCCH).

[0134] 9. Modulation and Coding Scheme (MCS)

[0135] The MCS modulation coding table is a representation form proposed by 802.11n to characterize the communication rate of WLAN. NR rate matching is achieved through the MCS index value. Each MCS index corresponds to a set of modulation orders, target code rates, and spectrum efficiency. The MCS index is indicated by DCI. The PDSCH carrying SIB1 is scheduled by DCI scrambled by the System Information (System Information) Radio Network Temporary Identifier (SI-RNTI for short). At this time, there are some reserved idle bits, which are 15 bits or 17 bits. In the following embodiments, the first field is used to represent the idle bits.

[0136] In the existing protocol, for DCI scrambled by a paging radio network temporary identifier P-RNTI, a random access radio network temporary identifier RA-RNTI, or a SI-RNTI, the modulation order must be less than or equal to 2.

[0137] There are 5 bits in DCI to indicate the index value of MCS. When the indication range of MCS index is 0 to 9, the corresponding modulation order is 2; when the indication range of MCS index is 10 to 16, the modulation order is 4; when the indication range of MCS index is 17 to 28, the modulation order is 6; when the indication range of MCS index is 29, 30 and 31, the modulation order is 2, 4 and 6 respectively. Among them, when the MCS index value is 0 to 28, each index value corresponds to a coding rate and spectrum efficiency at the same time. When the MCS index value is 29 to 31, it is in a reserved state and no coding rate and spectrum efficiency are indicated temporarily. Therefore, for the PDSCH carrying SIB1, the DCI of the PDSCH is scheduled.

[0138] When the indicated modulation order does not exceed 2, the corresponding MCS index value range is also 0 to 9. At this time, the state of the 5-bit field indicating the MCS index value is 0000 to 01001, and the highest bit of the indication field of the MCS index value is 0.

[0139] 10. Frequency Range (FR)

[0140] The frequency range is also called the frequency band. In the NR system, the frequency in FR1 is between 410MHz and 7125MHz, and the frequency in FR2 is greater than 24250MHz.

[0141] The technical solution provided by this application can be applied to various communication systems, such as: it can be applied to the fifth generation (5th generation mobile networks, 5G) communication system, future evolution system or multiple communication fusion systems, etc. The technical solution provided by this application can be applied to various application scenarios of the above-mentioned communication systems, such as industrial wireless sensing (Industry Wireless Sensor Network, IWSN) and video surveillance (Video surveillance). The technical solution that can be provided by this application can support multiple types of terminal devices, for example, REDCAP terminal devices. Including industrial wireless sensors, video surveillance cameras, wearable devices (smart watches), etc.

[0142] In order to enable those skilled in the art to better understand the technical solutions provided by the embodiments of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0143] Figure 2 The figure shows a flow chart of an access information indication method provided by the present application. The method can be executed by a terminal device and a network device, or can also be executed by a chip in a terminal device and a chip in a network device. Figure 2 The network devices in the Figure 1 The access network device 10 in the embodiment of the present invention, the terminal device may be the above-mentioned Figure 1 The terminal device 20 in. Figure 2 The illustrated method may include the following operations.

[0144] Optionally, S200: the network device determines at least one first information.

[0145] Specifically, the network device determines at least one first information according to the type of terminal devices in the cell, the number of terminal devices in the cell and / or the resource allocation of the terminal devices in the cell. The at least one first information is used to indicate at least one of a first access capability and a first access permission, the first access capability being whether the network device supports access by the first terminal device; the first access permission being whether the network device allows access by the first terminal device.

[0146] Optionally, at least one first information is included in a master information block MIB, or a system information block SIB, or downlink control information, or one first information among the at least one first information is included in the MIB, and another first information is included in the SIB or downlink control information. Optionally, the downlink control information is used to schedule a dedicated system information block SIB1.

[0147] Optionally, the at least one first information may include one or more bits.

[0148] S201: A network device sends at least one first message to a first terminal device, and correspondingly, the first terminal device receives at least one first message from the network device.

[0149] Specifically, at least one first information includes one or more bits, and there is a corresponding relationship between different bit states of at least one first information and whether the network device allows the first terminal device to access and / or supports the first terminal device to access. When the network device does not support the access of the terminal device, it can be understood that the network device does not have the ability to access the first terminal device at this time. When the network device does not allow the first terminal device to access, it can be understood that the network device has the ability to access the first terminal device at this time, but does not allow the first terminal device to access. For example, for a certain cell, due to the large number of terminal devices accessing the cell, the network device is for the purpose of load balancing and does not allow the first terminal device to access the cell.

[0150] S202: Determine whether the network device supports access by a first terminal device and / or whether access by a first terminal device is allowed.

[0151] Specifically, the first terminal device determines, based on at least one first information, whether the network device supports access by the first terminal device and / or whether access by the first terminal device is allowed.

[0152] Optionally, at least one different bit state of the first information may also correspond to the resource information corresponding to the first terminal device accessing the network device, and the first terminal device accesses the network device and receives information based on the corresponding resource. Optionally, the information received by the first terminal device based on the corresponding resource may be PDSCH, PDCCH and / or SIB1. Specifically, the resource corresponding to the first terminal device accessing the network device may be the first resource, the second resource or the third resource, and the resource information corresponding to the first terminal device may be one or more of the time domain position information, frequency domain position information, code domain position information, resource index, time domain resource offset, frequency domain resource offset, code domain resource offset power configuration or beam resource of the first resource, the second resource or the third resource. The first resource, the second resource and the third resource are three different resources. Optionally, the first resource is a control resource set, a random access resource or a synchronization information resource, and the resource information of the first resource, the second resource and the third resource is different, and the resource information is at least one of the following: time domain position information, frequency domain position information, code domain position information, resource index, power configuration, beam resource, time domain resource offset value, frequency domain resource offset value or code domain resource offset value.

[0153] Optionally, the first resource includes one or more resource units in the second resource, and the resource unit may be RB, RE, subcarrier, RB group, REG bundle, control channel element, subframe, radio frame, time slot, mini time slot and / or symbol, etc. In this case, one or more overlapping resource units in the first resource unit and the second resource unit may be in a time division multiplexing, frequency division multiplexing or code division multiplexing relationship; or, the first resource and the second resource are different, and the resource units in the first resource and the resource units in the second resource are completely independent.

[0154] Optionally, the third resource includes one or more resource units in the second resource and / or the first resource, and the resource unit may be RB, RE, subcarrier, RB group, REG bundle, control channel element, subframe, radio frame, time slot, mini time slot and / or symbol, etc. In this case, the third resource and one or more resource units overlapping with the first resource unit and / or the second resource unit may be in a time division multiplexing, frequency division multiplexing or code division multiplexing relationship; or, the third resource is different from both the first resource and the second resource, and the resource units in the third resource are completely independent of the resource units in the first resource or the resource units in the second resource.

[0155] Optionally, for the first resource, the time domain resource offset, frequency domain resource offset and / or code domain resource offset of the first resource may be relative to the second resource or the third resource. Similarly, the time domain resource offset, frequency domain resource offset and / or code domain resource offset of the second resource may be relative to the first resource or the third resource. The time domain resource offset, frequency domain resource offset and / or code domain resource offset of the third resource may be relative to the second resource or the first resource. Optionally, the resource offset value may be a preset value. For example, taking the resource offset value of the first resource as an example, the first resource is 1 / 2 of the number of resources of the second resource or the third resource. n , the resource number can be the number of RBs, the number of REs, the number of subcarriers, etc.; or, the resource offset value is a fixed bandwidth, for example, 100MHz, 50MHz, 25MHz, 10MHz, 5MHz, etc.; or, the resource offset value is the corresponding number of RBs, for example, 96RB, 48RB, 24RB, 12RB, 6RB, etc.

[0156] In an optional manner, at least one first information contains 1 bit. Optionally, in the FRI frequency band, at least one first information contains a 1-bit indication field in the MIB; or, in the FR2 frequency band, at least one first information contains a 1-bit indication field in the downlink control information of SIB1 or scheduling SIB1.

[0157] Example 1: The 1-bit indication field corresponds to two status values. The two status values ​​correspond to whether the network device supports the first terminal device to access the first cell. For example, the status value 0 is used to indicate that the network device does not support the access of the first terminal device; the status value 1 is used to indicate that the network device supports the access of the first terminal device. When the network device does not support the access of the terminal device, it can be understood that the network device does not have the ability to access the first terminal device at this time.

[0158] Example 2: The 1-bit indication field corresponds to two status values, and the two status values ​​correspond to whether the network device allows the first terminal device to access the first cell. For example, status value 0 is used to indicate that the network device does not allow the first terminal device to access the cell, and status 1 indicates that the network device allows the first terminal device to access the cell.

[0159] Example three, the 1-bit indication field corresponds to two status values, and there is a corresponding relationship between the two status values ​​and the resource information corresponding to the first terminal device accessing the network device. At this time, it can be understood that at least one first information indicates the resource information corresponding to the first terminal device accessing the network device when the network device supports and allows the first terminal device to access. For example, the status value 0 indicates that the first terminal device receives information based on the first resource, and the status value 1 indicates that the first terminal device receives information based on the second resource. Optionally, at least one first information is included in the downlink control information, and the downlink control information is used to schedule the data channel carrying the system information block 1.

[0160] Further optionally, the first resource is a public PDSCH, and the public PDSCH can be understood as a PDSCH that can be received by all terminal devices within the coverage of the network device. The second resource is a dedicated PDSCH, and the dedicated PDSCH can be understood as a PDSCH that can only be received by terminal devices of the first type. Alternatively, the first resource is a public SIB1, and the public SIB1 can be understood as a SIB1 that can be received by all terminal devices within the coverage of the network device, and the second resource is a dedicated SIB1, and the dedicated SIB1 can be understood as a SIB1 that can only be received by terminal devices of the first type. Among them, the first type of terminal device is a terminal device having the same first characteristic as the first terminal device.

[0161] Example 4: The 1-bit indication field corresponds to two status values, the first bit status indicates that the first terminal device is not supported to access, and the 1-bit second bit status indicates that the first terminal device is allowed to access, and the first terminal device receives information based on the first resource. Optionally, at least one first information is included in the MIB, and the first resource is a control resource set with an index of 0.

[0162] Example 5: The 1 bit contains information in the master information block or the system information block 1. Further optionally, the 1 bit is a cellReservedForoperatorUse field reserved for operators, or the 1 bit is a cellReservedForOtherUse field reserved for other purposes, or the 1 bit is a cellReservedForFutureUse field reserved for compatibility. In this case, at least one first information is dedicated information for a first type of terminal device, and the dedicated information can be understood as information that can only be interpreted by the first type of terminal device, and other types of terminal devices cannot interpret the dedicated information. The first type of terminal device has the same first feature as the first terminal device.

[0163] In an optional manner, at least one first information includes 2 bits. Optionally, in the FRI frequency band, at least one first information includes a 2-bit indication field in the MIB, and in the FR2 frequency band, at least one first information includes a 2-bit indication field in the SIB1 or the downlink control information of the scheduling SIB1. Further optionally, in the FRI frequency band, the 2 bits are composed of 1 bit of spare in the MIB information and 1 bit in the field indicating the SSB index in the PBCH; or, the 2 bits are composed of 2 bits in the field indicating the SSB index in the PBCH.

[0164] Example 1: The correspondence between different state values ​​of at least one first information and the indication content can be as shown in Table 2, and at least one first information contains 2 bits, corresponding to 4 state values. At this time, the different bit states of at least one first information can indicate whether the network device supports the access of the first terminal device, whether the first terminal device is allowed to access, and the information of the resources corresponding to the first terminal device accessing the network device, and the resource information includes one or more of time domain position information, frequency domain position information, code domain position information, resource index, time domain resource offset, frequency domain resource offset, code domain resource offset, power configuration, and beam resources. Optionally, the resource information may be information of the first resource, the second resource, or the third resource.

[0165] Table 2

[0166] At least one state value of the first information 00 01 10 11 Does the network device support access by the first terminal device? no yes yes yes Whether the network device allows the first terminal device to access no yes yes Resource information corresponding to the first terminal device P1 P2

[0167] The status value 00 indicates to the first terminal device that the network device does not support the access of the first terminal device; the status value 01 indicates to the first terminal device that the network device supports the access of the first terminal device, but the first terminal device is not allowed to access at this time; the status value 10 indicates to the first terminal device that the network device supports and allows the access of the first terminal device, and when the first terminal device accesses the network device at this time, the resource information corresponding to the first terminal device is P1; the status value 11 indicates to the first terminal device that the network device supports and allows the access of the first terminal device, and when the first terminal device accesses the network device at this time, the resource information corresponding to the first terminal device is P2.

[0168] Optionally, P1 is one or more of the time domain location information, frequency domain location information, code domain location information, resource index, power configuration, and beam resource of the first resource. P2 is one or more of the time domain location information, frequency domain location information, code domain location information, resource index, power configuration, and beam resource of the second resource.

[0169] Optionally, P1 is an offset value between the first resource and the second resource in the time domain, frequency domain and / or code domain. P2 is another offset value between the first resource and the second resource in the time domain, frequency domain and / or code domain.

[0170] For example, P1 and P2 are used to indicate two different offset values ​​between the first resource and the second resource in the time domain; or, P1 and P2 are used to indicate two different offset values ​​between the first resource and the second resource in the frequency domain; or, P1 and P2 are used to indicate two different offset values ​​between the first resource and the second resource in the code domain; or, P1 is used to indicate the offset value between the first resource and the second resource in the time domain, and P2 is used to indicate the offset value between the first resource and the second resource in the frequency domain and / or the code domain; or, P1 is used to indicate the offset value between the first resource and the second resource in the frequency domain, and P2 is used to indicate the offset value between the first resource and the second resource in the time domain and / or the code domain; or, P1 is used to indicate the offset value between the first resource and the second resource in the code domain, and P2 is used to indicate the offset value between the first resource and the second resource in the time domain and / or the frequency domain. It can be understood that the offset values ​​indicated by P1 and P2 can be interchanged, and there is no limitation here.

[0171] Example 2: The correspondence between different state values ​​of at least one first information and the indication content can be as shown in Table 3, and at least one first information contains 2 bits, corresponding to 4 state values. At this time, the different state values ​​of at least one first information can indicate whether the network device supports the access of the first terminal device, whether the first terminal device is allowed to access, and the resource information corresponding to the first terminal device accessing the network device, and the resource information includes one or more of time domain position information, frequency domain position information, code domain position information, resource index, time domain resource offset, frequency domain resource offset, code domain resource offset, power configuration, and beam resources. Optionally, the resource information may be information on the first resource, the second resource, or the third resource.

[0172] Table 3

[0173] At least one state value of the first information 00 01 10 11 Does the network device support access by the first terminal device? no yes yes yes Whether the network device allows the first terminal device to access yes yes yes Resource information corresponding to the first terminal device P1 P2 P3

[0174] The status value 00 indicates to the first terminal device that the network device does not support the first terminal device access; the status value 01 indicates to the first terminal device that the network device supports and allows the first terminal device access, and when the first terminal device accesses the network device at this time, the resource information of the first terminal device is P1; the status value 10 indicates to the first terminal device that the network device supports and allows the first terminal device access, and when the first terminal device accesses the network device at this time, the resource information of the first terminal device is P2. The status value 11 indicates to the first terminal device that the network device supports and allows the first terminal device access, and when the first terminal device accesses the network device at this time, the resource information of the first terminal device is P3. P1, P2 and P3 can be three different resource information.

[0175] Optionally, P1 is one or more of the time domain location information, frequency domain location information, code domain location information, resource index, power configuration, and beam resource of the first resource. P2 is one or more of the time domain location information, frequency domain location information, code domain location information, resource index, power configuration, and beam resource of the second resource. P3 is one or more of the time domain location information, frequency domain location information, code domain location information, resource index, power configuration, and beam resource of the third resource.

[0176] Optionally, P1 is a first offset value between the first resource and the second resource in the time domain, frequency domain and / or code domain. P2 is a second offset value between the first resource and the second resource in the time domain, frequency domain and / or code domain. P3 is a third offset value between the first resource and the second resource in the time domain, frequency domain and / or code domain.

[0177] For example, P1, P2 and P3 are used to indicate three different offset values ​​between the first resource and the second resource in the time domain; or, P1, P2 and P3 are used to indicate three different offset values ​​between the first resource and the second resource in the frequency domain; or, P1, P2 and P3 are used to indicate three different offset values ​​between the first resource and the second resource in the code domain; or, P1 is used to indicate the offset value between the first resource and the second resource in the time domain, and P2 is used to indicate the offset value between the first resource and the second resource in the frequency domain and / or code domain; P3 is used to indicate the offset value between the first resource and the second resource in the time domain, and / or The offset value of the frequency domain and / or code domain; or, P1 is used to indicate the offset value of the first resource and the second resource in the frequency domain, and P2 is used to indicate the offset value of the first resource and the second resource in the time domain and / or code domain; P3 is used to indicate the offset value of the first resource and the second resource in the time domain, and / or frequency domain and / or code domain; or, P1 is used to indicate the offset value of the first resource and the second resource in the code domain, P2 is used to indicate the offset value of the first resource and the second resource in the time domain and / or frequency domain, and P3 is used to indicate the offset value of the first resource and the second resource in the time domain, and / or frequency domain and / or code domain. It can be understood that the offset values ​​indicated by P1, P2 and P3 can be interchanged, and there is no limitation here.

[0178] Example three: The correspondence between different state values ​​of at least one first information and the indication content can be as shown in Table 4, and at least one first information contains 2 bits, corresponding to 4 state values. Different state values ​​of at least one first information can indicate the resource information corresponding to the first terminal device accessing the network device. At this time, it can be understood that the network device supports and allows the first terminal device to access. The resource information includes one or more of time domain position information, frequency domain position information, code domain position information, resource index, time domain resource offset, frequency domain resource offset, code domain resource offset, power configuration, and beam resources. Optionally, the resource information may be information on the first resource, the second resource, or the third resource.

[0179] Table 4

[0180] At least one state value of the first information 00 01 10 11 Whether the network device allows the first terminal device to access yes yes yes yes First resource information P1 P2 P3 P4

[0181] The status value 00 indicates to the first terminal device that the network device supports and allows the first terminal device to access, and when the first terminal device accesses the network device at this time, the resource information of the first terminal device is P1; the status value 01 indicates to the first terminal device that the network device supports and allows the first terminal device to access, and when the first terminal device accesses the network device at this time, the resource information of the first terminal device is P2. The status value 10 indicates to the first terminal device that the network device supports and allows the first terminal device to access, and when the first terminal device accesses the network device at this time, the resource information of the first terminal device is P3. The status value 11 indicates to the first terminal device that the network device supports and allows the first terminal device to access, and when the first terminal device accesses the network device at this time, the resource information of the first terminal device is P4. Specifically, the resource corresponding to the first terminal device accessing the network device is the first resource, and P1, P2, P3 and P4 can be four different resource information.

[0182] Optionally, P1 is one or more of the time domain position information, frequency domain position information, code domain position information, resource index, power configuration, and beam resource of the first resource. P2 is one or more of the time domain position information, frequency domain position information, code domain position information, resource index, power configuration, and beam resource of the second resource. P3 is one or more of the time domain position information, frequency domain position information, code domain position information, resource index, power configuration, and beam resource of the third resource. P4 is the offset value between the first resource and the second resource in the time domain, frequency domain, and / or code domain, or P4 is the offset value between the third resource and the second resource in the time domain, frequency domain, and / or code domain.

[0183] Optionally, P1 is a first offset value between the first resource and the second resource in the time domain, frequency domain and / or code domain. P2 is a second offset value between the first resource and the second resource in the time domain, frequency domain and / or code domain. P3 is a third offset value between the first resource and the second resource in the time domain, frequency domain and / or code domain. P4 is a fourth offset value between the first resource and the second resource in the time domain, frequency domain and / or code domain.

[0184] Example 4: at least one first information includes 2 bits, the first bit state of the 2 bits indicates that the network device supports access by the first terminal device; the second bit state of the 2 bits indicates that the network device does not support access by the first terminal device; the third bit state of the 2 bits indicates that access by the first terminal device is allowed, and the first terminal device receives information based on the first resource, and the fourth bit state indicates that access by the first terminal device is allowed, and the first terminal device receives information based on the second resource.

[0185] Figure 3The figure shows a flow chart of an access information indication method provided by the present application. The method can be executed by a terminal device and a network device, or can also be executed by a chip in a terminal device and a chip in a network device. Figure 3 The network devices in the Figure 1 The access network device 10 in the embodiment of the present invention, the terminal device may be the above-mentioned Figure 1 The terminal device 20 in. Figure 3 The illustrated method may include the following operations.

[0186] S300: The network device determines at least one first information.

[0187] Specifically, at least one first information is used to indicate at least one of a first access capability and a first access permission, the first access capability being whether the network device supports access by a first terminal device; the first access permission being whether the network device allows access by the first terminal device.

[0188] Optionally, at least one first information is included in the system information block SIB, or the downlink control information of the scheduling SIB1, or at least one first information is included in the system information SIB and the downlink control information of the scheduling SIB1.

[0189] Optionally, at least one first information includes one or more bits, and the number of the one or more bits is N, where N is a positive integer.

[0190] S301: A network device sends at least one first message to a first terminal device, and correspondingly, the first terminal device receives at least one first message from the network device.

[0191] Specifically, at least one first information includes N bits, and there is a corresponding relationship between different bit state values ​​of at least one first information and whether the network device allows the first terminal device to access and / or supports the first terminal device to access.

[0192] S302: Determine whether the network device supports access by a first terminal device and / or whether access by a first terminal device is allowed.

[0193] Specifically, the first terminal device determines, based on at least one first information, whether the network device supports access by the first terminal device and / or whether access by the first terminal device is allowed.

[0194] Optionally, different bit state values ​​of at least one first information may also correspond to resource information corresponding to the first terminal device accessing the network device, whether the network device allows the second terminal device to access, and / or resource information corresponding to the second terminal device accessing the network device. When the network device does not allow the first terminal device and / or the second terminal device to access, it can be understood that the network device has the ability to access the first terminal device and / or the second terminal device, but does not allow the first terminal device and / or the second terminal to access. For example, for a certain cell, due to the large number of terminal devices accessing the cell, the network device does not allow the first terminal device and / or the second terminal to access the cell for the purpose of load balancing. When the first terminal device and the second terminal device access the network device, information is received based on resources indicated by at least one first information. The information received based on resources indicated by at least one first information may be PDSCH, PDCCH and / or SIB1.

[0195] Specifically, the first terminal device and the second terminal device have different first characteristics, which can also be understood as the first terminal device and the second terminal device belong to different device types. The first characteristics include one or more of the following:

[0196] Bandwidth, number of supported or configured resources, number of transmit antenna ports and / or number of receive antenna ports, number of RF channels, number of hybrid automatic repeat request (HARQ) processes, supported peak rate, application scenarios, latency requirements, processing capabilities, protocol version, duplex mode, services, etc. The first feature is described in detail below.

[0197] Bandwidth, or channel bandwidth, is the bandwidth supported or configured by the terminal device. The bandwidths of the first terminal device and the second terminal device are different. For example, the bandwidth of the first terminal device is 20M, and the bandwidth of the second terminal device is 100M.

[0198] The number of resources supported or configured may be RBs, REs, subcarriers, RB groups, REG bundles, control channel elements, subframes, radio frames, time slots, mini time slots and / or symbol numbers. The number of resources supported or configured by the first terminal device and the second terminal device is different. For example, the number of resources supported by the first terminal device is 48 RBs, and the number of resources supported by the second terminal device is 96 RBs.

[0199] The number of transmitting antenna ports and / or the number of receiving antenna ports, that is, the number of transmitting antenna ports and / or the number of receiving antenna ports of the first terminal device is different from that of the second terminal device. For example: the number of transmitting antenna ports of the first terminal device is 1, and the number of receiving antenna ports is 2; the number of transmitting antenna ports of the second terminal device is 2, and the number of receiving antenna ports is 4.

[0200] The number of radio frequency channels, that is, the number of radio frequency channels of the first terminal device is different from that of the second terminal device. For example, the number of radio frequency channels of the first terminal device is 1, and the number of radio frequency channels of the second terminal device is 2.

[0201] The number of HARQ processes, that is, the number of HARQ processes supported by the first terminal device is different from that of the second terminal device. For example, the number of HARQ processes of the first terminal device is 8, and the number of HARQ processes of the second terminal device is 16.

[0202] The supported peak rates, that is, the maximum peak rates of the first terminal device and the second terminal device are different. For example, the maximum peak rate supported by the first terminal device is 100Mbps, and the peak rate supported by the second terminal device is 200Mbps.

[0203] Application scenarios, that is, the first terminal device and the second terminal device serve different application scenarios. For example, the first terminal device is used for industrial wireless sensing, video surveillance, wearable devices, etc., and the second terminal device is used for mobile communications, video surfing, etc.

[0204] The delay requirement, that is, the first terminal device and the second terminal device have different requirements for transmission delay. For example, the delay requirement of the first terminal device is 500 milliseconds, and the delay requirement of the second terminal device is 100 milliseconds.

[0205] The processing capability and the processing timing and processing speed of the channel or data of the first terminal device and the second terminal device under different subcarrier space (SCS) conditions are different. For example, the first terminal device does not support complex operations, and the complex operations may include artificial intelligence (AI) and virtual reality (VR) rendering, while the second terminal device supports complex operations, or it is understood that the processing capability of the first terminal device is lower than that of the second terminal device.

[0206] Protocol version, that is, the first terminal device and the second terminal device belong to terminal devices of different protocol versions, for example: the protocol version supported by the first terminal device is Release 17, and the protocol version supported by the second terminal device is Release 15.

[0207] Duplex mode, the duplex mode includes half-duplex and full-duplex, for example: the first terminal device works in half-duplex mode, and the second terminal device works in full-duplex mode.

[0208] Services include but are not limited to Internet of Things applications, such as video surveillance, mobile broadband MBB, etc. For example, the service supported by the first terminal device is video surveillance, and the service supported by the second terminal device is mobile broadband MBB.

[0209] Specifically, the resource corresponding to the first terminal device may be a first resource, a second resource, or a third resource, and the resource information corresponding to the first terminal device may be one or more of the time domain position information, frequency domain position information, code domain position information, resource index, time domain resource offset, frequency domain resource offset, code domain resource offset power configuration, or beam resource of the first resource, the second resource, or the third resource. The resource corresponding to the second terminal device may be a first resource, a second resource, or a third resource, and the resource information corresponding to the second terminal device may be one or more of the time domain position information, frequency domain position information, code domain position information, resource index, time domain resource offset, frequency domain resource offset, code domain resource offset power configuration, or beam resource of the first resource, the second resource, and the third resource are three different resources. Optionally, the first resource is a control resource set, a random access resource, or a synchronization information resource, and the second resource is two time domain position information, frequency domain position information, code domain position information, resource index, time domain resource offset value, frequency domain resource offset value, code domain resource offset value, power configuration, or beam resource that are different from the first resource. Optionally, the first resource includes one or more resource units in the second resource, and the resource unit may be RB, RE, subcarrier, RB group, REG bundle, control channel element, subframe, radio frame, time slot, mini time slot and / or symbol, etc. In this case, one or more overlapping resource units in the first resource unit and the second resource unit may be in a time division multiplexing, frequency division multiplexing or code division multiplexing relationship; or, the first resource and the second resource are different, and the resource units in the first resource and the resource units in the second resource are completely independent.

[0210] Optionally, the third resource includes one or more resource units in the second resource and / or the first resource, and the resource unit may be RB, RE, subcarrier, RB group, REG bundle, control channel element, subframe, radio frame, time slot, mini time slot and / or symbol, etc. In this case, the third resource and one or more resource units overlapping with the first resource unit and / or the second resource unit may be in a time division multiplexing, frequency division multiplexing or code division multiplexing relationship; or, the third resource is different from both the first resource and the second resource, and the resource units in the third resource are completely independent of the resource units in the first resource or the resource units in the second resource.

[0211] Optionally, for the first resource, the time domain resource offset, frequency domain resource offset and / or code domain resource offset of the first resource may be relative to the second resource or the third resource. Similarly, the time domain resource offset, frequency domain resource offset and / or code domain resource offset of the second resource may be relative to the first resource or the third resource. The time domain resource offset, frequency domain resource offset and / or code domain resource offset of the third resource may be relative to the second resource or the first resource. Optionally, the resource offset value may be a preset value. For example, taking the offset value of the first resource as an example, the first resource is 1 / 2 of the number of resources of the second resource or the third resource. n The number of resources may be the number of RBs, the number of REs, the number of subcarriers, etc.; or the resource offset value may be a fixed bandwidth, for example, 100MHz, 50MHz, 25MHz, 10MHz, 5MHz, etc.; or the resource offset value may be a corresponding number of RBs, for example, 96RB, 48RB, 24RB, 12RB, 6RB, etc.

[0212] In the following example, R1 represents the resource information of the first resource, R2 represents the resource information of the second resource, R3 represents the resource information of the third resource, and N represents that access is not allowed. Specifically, the resource information may include one or more of time domain position information, frequency domain position information, code domain position information, resource index, time domain resource offset, frequency domain resource offset, code domain resource offset, power configuration, and beam resource. The following table is only exemplary, and the relationship between different bit states of at least one first information and the indication content can be reflected in text or in a table, and this application does not limit this.

[0213] Example 1: At least one first information includes 3 bits, and different state values ​​of the at least one first information correspond to different indication contents. Optionally, the 3 bits are fields in SIB1, or the 3 bits are composed of a 1-bit field in SIB1 and 2 bits in the downlink control information of scheduling SIB1. The correspondence between different state values ​​of at least one first information and the indication contents can be shown in Table 5.

[0214] Table 5

[0215] At least one state value of the first information 000 001 010 011 100 101 110 111 First terminal device R1 R1 R2 R3 N R1 R2 N Second terminal device R1 R3 R3 R3 R3 N N R1

[0216] For example: the content corresponding to one of the 3-bit states is: the first terminal device is allowed to access based on R1, and the second terminal device is allowed to access based on R2. This state can correspond to state 000; for example: the content corresponding to one of the 3-bit states is: the first terminal device is allowed to access based on R1, and the second terminal device is allowed to access based on R3. This state can correspond to state 001; for example: the content corresponding to one of the 3-bit states is: the first terminal device is allowed to access based on R2, and the second terminal device is allowed to access based on R3. This state can correspond to state 010; for example: the content corresponding to one of the 3-bit states is: the first terminal device is allowed to access based on R3, and the second terminal device is allowed to access based on R3. This state can correspond to State 011; for example: the content corresponding to one of the 3-bit states is: the first terminal device is not allowed to access, and the second terminal device is allowed to access based on R3, and this state can correspond to state 100; for example: the content corresponding to one of the 3-bit states is: the first terminal device is allowed to access based on R1, and the second terminal device is not allowed to access. This state can correspond to state 101; for example: the content corresponding to one of the 3-bit states is: the first terminal device is allowed to access based on R2, and the second terminal device is not allowed to access. This state can correspond to state 110; for example: the content corresponding to one of the 3-bit states is: the first terminal device is not allowed to access, and the second terminal device is allowed to access based on R1. This state can correspond to state 111.

[0217] Example 2: At least one first information includes 3 bits, and different state values ​​of at least one first information correspond to different indication contents. Optionally, the 3 bits are fields in SIB1, or the 3-bit field is a field in downlink control information that schedules SIB1. The correspondence between different state values ​​of at least one first information and the indication contents can be shown in Table 6.

[0218] Table 6

[0219] At least one state value of the first information 000 001 010 011 100 101 110 111 First terminal device N R1 R2 R3 N R1 R2 N Second terminal device N R3 R3 R3 R3 N N R1

[0220] For example: the content corresponding to one of the 3-bit states is: the first terminal device is not allowed to access, and the second terminal device is not allowed to access. This state can correspond to state 000; for example: the content corresponding to one of the 3-bit states is: the first terminal device is allowed to access based on R1, and the second terminal device is allowed to access based on R3. This state can correspond to state 001; for example: the content corresponding to one of the 3-bit states is: the first terminal device is allowed to access based on R2, and the second terminal device is allowed to access based on R3. This state can correspond to state 010; for example: the content corresponding to one of the 3-bit states is: the first terminal device is allowed to access based on R3, and the second terminal device is allowed to access based on R3. This state can correspond to state 0 11; For example: the content corresponding to one of the 3-bit states is: the first terminal device is not allowed to access, and the second terminal device is allowed to access based on R3, and this state can correspond to state 100; For example: the content corresponding to one of the 3-bit states is: the first terminal device is allowed to access based on R1, and the second terminal device is not allowed to access. This state can correspond to state 101; For example: the content corresponding to one of the 3-bit states is: the first terminal device is allowed to access based on R2, and the second terminal device is not allowed to access. This state can correspond to state 110; For example: the content corresponding to one of the 3-bit states is: the first terminal device is not allowed to access, and the second terminal device is allowed to access based on R1. This state can correspond to state 111.

[0221] Example 3: At least one first information includes 2 bits, and different state values ​​of the 2 bits correspond to different indication contents. Optionally, the 2 bits are fields in SIB1, or the 2 bits are composed of 1 bit in SIB1 and 1 bit in downlink control information that schedules SIB1. The correspondence between different state values ​​of at least one first information and the indication content can be shown in Table 7.

[0222] Table 7

[0223] At least one state value of the first information 00 01 10 11 First terminal device R3 R1 N R2 Second terminal device R3 N R1 R3

[0224] For example: the content corresponding to one of the 2-bit states is: the first terminal device is allowed to access based on R3, and the second terminal device is allowed to access based on R3. This state can correspond to state 00; for example: the content corresponding to one of the 2-bit states is: the first terminal device is allowed to access based on R1, and the second terminal device is not allowed to access. This state can correspond to state 01; for example: the content corresponding to one of the 2-bit states is: the first terminal device is not allowed to access, and the second terminal device is allowed to access based on R1. This state can correspond to state 10; for example: the content corresponding to one of the 2-bit states is: the first terminal device is allowed to access based on R2, and the second terminal device is allowed to access based on R3. This state can correspond to state 11.

[0225] Example 4: at least one first information includes 2 bits, and different state values ​​of the 2 bits correspond to different indication contents. Optionally, the field in the 2-bit SIB1, or the 2-bit field is a field in the downlink control information of the scheduling SIB1. For example: the content corresponding to one of the 2-bit states is: the first terminal device is not allowed to access, and the second terminal device is not allowed to access. This state can correspond to state 00; for example: the content corresponding to one of the 2-bit states is: the first terminal device is allowed to access based on R1, and the second terminal device is not allowed to access. This state can correspond to state 01; for example: the content corresponding to one of the 2-bit states is: the first terminal device is not allowed to access, and the second terminal device is allowed to access based on R1. This state can correspond to state 10; for example: the content corresponding to one of the 2-bit states is: the first terminal device is allowed to access based on R2, and the second terminal device is allowed to access based on R3. This state can correspond to state 11. It can also be reflected in a table. The correspondence between different state values ​​of at least one first information and the indication content can be shown in Table 8.

[0226] Table 8

[0227] At least one state value of the first information 00 01 10 11 First terminal device N R1 N R2 Second terminal device N N R1 R3

[0228] Example 5: At least one first information includes 2 bits, and different state values ​​of the 2 bits correspond to different indication contents. Optionally, the 2 bits are fields in SIB1, or the 2-bit field is a field in downlink control information that schedules SIB1. The correspondence between different state values ​​of at least one first information and the indication contents can be shown in Table 9.

[0229] Table 9

[0230] At least one state value of the first information 00 01 10 11 First terminal device N R1 N R1 Second terminal device N N R1 R1

[0231] For example: the content corresponding to one of the 2-bit states is: the first terminal device is not allowed to access, and the second terminal device is not allowed to access. This state can correspond to state 00; for example: the content corresponding to one of the 2-bit states is: the first terminal device is allowed to access based on R1, and the second terminal device is not allowed to access. This state can correspond to state 01; for example: the content corresponding to one of the 2-bit states is: the first terminal device is not allowed to access, and the second terminal device is allowed to access based on R1. This state can correspond to state 10; for example: the content corresponding to one of the 2-bit states is: the first terminal device is allowed to access based on R1, and the second terminal device is allowed to access based on R1. This state can correspond to state 11.

[0232] Figure 4The figure shows a flow chart of an access information indication method provided by the present application. The method can be executed by a terminal device and a network device, or can also be executed by a chip in a terminal device and a chip in a network device. Figure 4 The network devices in the Figure 1 The access network device 10 in the embodiment of the present invention, the terminal device may be the above-mentioned Figure 1 The terminal device 20 in. Figure 4 The illustrated method may include the following operations.

[0233] S400: The network device determines at least one first information.

[0234] Specifically, at least one first information is used to indicate a first access permission, where the first access permission is whether the network device allows the first terminal device to access. Optionally, at least one first information is also used to indicate whether the network device allows the first terminal device to access within a preset time range.

[0235] At least one first information is included in the downlink control information DCI of the scheduling SIB1, and the DCI is used to indicate the modulation and coding scheme MCS. Specifically, the format of the DCI is 1-0, and the at least one first information includes N bits, and optionally, the N bits are composed of at least 1 bit in the first field in the DCI and / or at least 1 bit in the 5 bits indicating the MCS index value.

[0236] S401: The network device sends at least one first message to the first terminal device, and correspondingly, the first terminal device receives at least one first message from the network device.

[0237] Specifically, different status values ​​of at least one first information may indicate whether the network device allows the first terminal device to access, and / or whether the network device allows the first terminal device to access within a preset time range, and different status values ​​of the first information may correspond to different preset time ranges. The unit of the preset time range may be seconds, minutes, time slots, radio frames, subframes, symbols, etc. Optionally, the duration indicated by the preset time range is different from 300 seconds, for example, the preset time range is 300*N seconds, where N is an integer greater than or equal to 2.

[0238] S402: Determine whether the network device supports access by a first terminal device and / or whether access by a first terminal device is allowed.

[0239] Specifically, the first terminal device determines, based on at least one first information, whether the network device allows the first terminal device to access, and / or whether the first terminal device is allowed to access within a preset time range.

[0240] Example 1: The indication field carrying at least one first information is 1 bit of the 15 bits (17 bits) used for the operation of the spectrum access channel within a cell, corresponding to two status values. At this time, the two states of the at least one first information are respectively used to indicate that the network device allows the first terminal device to access, or the network device does not allow the first terminal device to access. For example, the status value 0 is used to indicate that the network device allows the first terminal device to access; the status value 1 is used to indicate that the network device does not allow the first terminal device to access. The contents indicated by the status value 0 and the status value 1 can be interchanged, and there is no restriction here.

[0241] Example 2: The indication field carrying at least one first information is 2 bits of 15 bits (17 bits) used for the operation of a spectrum access channel within a cell, corresponding to four state values.

[0242] Table 10

[0243] At least one state value of the first information 00 01 10 11 Instructions N T1 T2 Y

[0244] In Table 10, T1 and T2 are two different preset time ranges, N indicates that access is allowed, and Y indicates that access is allowed. The state value 00 indicates to the first terminal device that the network device does not allow the first terminal device to access; the state value 01 indicates to the first terminal device that the network device does not allow the first terminal device to access within T1; the state value 10 indicates to the first terminal device that the network device does not allow the first terminal device to access within T2, and the state value 11 indicates to the first terminal device that the network device allows the first terminal device to access.

[0245] Example 3: The indication field carrying at least one first information is 2 bits of 15 bits (17 bits) used for the operation of a spectrum access channel within a cell, corresponding to four state values.

[0246] Table 11

[0247]

[0248] The status value 00 indicates to the first terminal device that the network device does not allow the first terminal device to access within the first time range; the status value 01 indicates to the first terminal device that the network device does not allow the first terminal device to access within the second time range; the status value 10 indicates to the first terminal device that the network device does not allow the first terminal device to access within the third time range; the status value 11 indicates to the first terminal device that the network device allows the first terminal device to access, wherein the first time range, the second time range and the third time range can be three time ranges pre-configured by the network device. For the time range pre-configured by the network device, when the duration of the time range configured by the network device is positive infinity, it can also be understood that the network device does not allow the first terminal device to access. For example, when any one of the preset time ranges of T1, T2 or T3 is positive infinity, at this time, it can also be understood that the network device does not allow the first terminal device to access.

[0249] Example 4: The indication field carrying at least one first information is 2 bits, and the 2 bits are composed of 1 bit in an indication field in the 15 bits (17 bits) used for the operation of a spectrum access channel within a cell and the highest bit in the 5 bits indicating the MCS index value, corresponding to four status values.

[0250] Optionally, the highest bit of the 5 bits indicating the MCS index value is used as a flag for the dedicated downlink control information of the device type corresponding to the first terminal device. When the highest bit of the 5-bit field indicating the MCS index value is 1, the terminal device of the device type to which the first terminal device belongs cannot decode the downlink control information. Further, 1 bit in an indication field in the 15 bits (17 bits) used for the operation of the spectrum access channel within a cell is used to indicate whether the network device allows the first terminal device to access and / or whether the first terminal device is allowed to access within a preset time range. At this time, it can also be understood that the network device uses the highest bit of the index value indicating the MCS and 1 bit in the 15 bits (17 bits) used for the operation of the spectrum access channel within a cell to jointly indicate whether the network device allows the first terminal device to access, whether the second terminal device is allowed to access, and / or whether the first terminal device is allowed to access within a preset time range. Among them, the first terminal device and the second terminal device have different first characteristics, which can also be understood as the first terminal device and the second terminal device belong to different device types. The first feature includes one or more of the number of resources supported or configured by the terminal device, the number of transmit antenna ports and / or the number of receive antenna ports, the number of RF channels, the number of HARQ processes, the supported peak rate, the application scenario, the latency requirement, and the processing capability. The number of resources may be RBs, REs, subcarriers, RB groups, REG bundles, control channel elements, subframes, radio frames, time slots, mini-time slots, and / or the number of symbols. For a detailed description of the first feature, refer to Figure 3The relevant description in step S301 is not repeated here. Optionally, the first terminal device belongs to a first type of terminal device with reduced capability, and the second terminal device belongs to a regular terminal device, and the capability of the regular terminal device is better than that of the first type of terminal device with reduced capability.

[0251] Table 12

[0252] At least one state value of the first information 00 01 10 11 Whether the network device allows the second terminal device to access Y Y N N Whether the network device allows the first terminal device to access T1 Y T2 Y

[0253] In the example of Table 12, 1T1 and T2 are two different preset time ranges. N means access is not allowed, and Y means access is allowed. For a 2-bit field that carries at least one first information, the high-order 1 bit in the 2-bit field is the highest-order 1 bit in the 5-bit field indicating the index value of the MCS, and the low-order 1 bit in the 2-bit field is 1 bit of the 15 bits (17 bits) used for the operation of the spectrum access channel in a cell. When the state value of the high-order 1 bit is 1, it is used to indicate that the second terminal device cannot access the network device. When the high-order 1 bit is 0, the second terminal device can access the network device. When the state value of the low-order 1 bit is 1, the first terminal device is allowed to access the network device. When the state value of the low-order 1 bit is 0, the first terminal device is not allowed to access the network device within the preset time range.

[0254] Example 5: In the 5-bit field used to indicate the index value of MCS, when the highest bit is 1, it means that the corresponding DCI at this time is a PDCCH dedicated to the terminal device of the type corresponding to the first terminal device. At this time, the second terminal device cannot access the network device. At this time, the SI information other than SIB1 indicated by the DCI has a type and / or content that is different from the type and / or content of the SI information of the second terminal device. When the highest bit is 0, the second terminal device can access the network device at this time. Further optionally, at least one of the 23 state values ​​01010 to 11111 of the 5-bit field indicating the index value of MCS is used to indicate whether the network device allows the first terminal device to access and / or whether the network device allows the first terminal device to access within a preset time range.

[0255] Specifically, when the highest bit in the 5-bit field indicating the index value of the MCS is 1, the second terminal device cannot access, and when the highest bit in the 5-bit field indicating the index value of the MCS is 0, the second terminal device can access. Further, any one or more bits of the second highest bit, the third highest bit, the fourth highest bit, and the lowest bit other than the highest bit can be combined with the highest bit to indicate whether the network device allows the first terminal device to access, whether the second terminal device to access, and / or whether the first terminal device is allowed to access within a preset time range.

[0256] Table 13

[0257] At least one state value of the first information 10000 10001 10010 10011 Whether the network device allows the second terminal device to access N N N N Whether the network device allows the first terminal device to access T1 Y T2 Y

[0258] As shown in Table 13, T1 and T2 are two different preset time ranges. N means access is not allowed, and Y means access is allowed. Since the highest bit of the 5-bit field indicating the index value of the MCS is 1 at this time, at least one first information at this time can be understood as simultaneously indicating that the network device does not allow the second terminal device to access. It can also be understood that the highest 1 bit and the lowest 2 bits in the 5-bit field indicating the index value of the MCS jointly indicate whether the network device allows the second terminal device to access, whether the network device allows the first terminal device to access, and whether the network device allows the first terminal device to access within the preset time range. Table 13 is only an example of using 4 of the 16 state values ​​from the above states 10000 to 11111 to indicate whether the network device allows the first terminal device to access and / or whether the network device allows the first terminal device to access within the preset time range, and the present application does not limit this.

[0259] Figure 5 The figure shows a flow chart of an access information indication method provided by the present application. The method can be executed by a terminal device and a network device, or can also be executed by a chip in a terminal device and a chip in a network device. Figure 5 The network devices in the Figure 1 The access network device 10 in the embodiment of the present invention, the terminal device may be the above-mentioned Figure 1 The terminal device 20 in. Figure 5 The illustrated method may include the following operations.

[0260] S500: The network device determines at least one first information.

[0261] Specifically, at least one first information is used to indicate whether the network device allows the first terminal device to access.

[0262] When there are multiple types of terminal devices in the cell to which the first terminal device belongs, the network device can configure the first information to indicate whether one or more types of terminal devices are allowed to access. At least one first information is contained in SIB1. Optionally, at least one first information is contained in N bits in the field indicating the corresponding access identifier (accessidentities) in the unified access control, where N is a positive integer. The N bits can be used to indicate whether the network device allows N terminal devices to access. Among the N terminal devices, the first feature of each terminal device is different, which can also be understood as that the device types to which the N terminal devices belong are all different. The first feature includes one or more of the number of resources supported or configured by the terminal device, the number of transmitting antenna ports and / or the number of receiving antenna ports, the number of RF channels, the number of HARQ processes, the supported peak rate, application scenarios, latency requirements, and processing capabilities. The number of resources can be RBs, REs, subcarriers, RB groups, REG bundles, control channel elements, subframes, radio frames, time slots, mini time slots and / or the number of symbols. For a specific description of the first feature, please refer to Figure 3 The relevant description in step S301 is not repeated here.

[0263] S501: A network device sends at least one first message to a first terminal device, and correspondingly, the first terminal device receives at least one first message from the network device.

[0264] Specifically, the first terminal device receives at least one first information, and the first terminal device determines whether to access the network device.

[0265] Example 1: The N bits are 1 bit, and the 1 bit is used to indicate whether the network device allows the first terminal device to access.

[0266] Example 2: The N bits are 2 bits, and the 2 bits are used to indicate whether the network device allows the first terminal device and the second terminal device to access. The first characteristics of the first terminal device and the second terminal device are different. Furthermore, the first terminal device is a first type of reduced capability terminal device, and the second terminal device is a second type of reduced capability terminal device.

[0267] S502: Determine whether the network device allows the first terminal device to access.

[0268] Specifically, the first terminal device determines whether the network device allows the first terminal device to access based on at least one first information.

[0269] It should be noted that the resources mentioned in the present application may include time domain and frequency domain resources of the synchronization channel, a control resource set, a random access resource, a PDSCH and / or a PDCCH. Specifically, for the case where at least one first information is included in the MIB, the resources in the present application may include time domain and frequency domain resources and / or a control resource set of the synchronization channel; for the case where at least one first information is included in the SIB, the resources in the present application may include random access resources; for the case where at least one first information is included in the downlink control information of the scheduling SIB1, the resources in this embodiment may be SIB1, or the PDSCH corresponding to SIB1. For the case where at least one first information is included in the MIB and another first information is included in the SIB1, the resources in the present application may include random access resources; for the case where at least one first information is included in the MIB and another first information is included in the downlink control information of the scheduling SIB1, the resources in the present application may be SIB1, or the PDSCH corresponding to SIB1.

[0270] In the embodiments provided by the present application, the methods provided by the embodiments of the present application are introduced from the perspective of network equipment, terminal equipment, and the interaction between network equipment and terminal equipment. In order to realize the functions in the methods provided by the embodiments of the present application, the network equipment and the terminal equipment may include hardware structures and / or software modules, and the functions are realized in the form of hardware structures, software modules, or hardware structures plus software modules. Whether a function in the functions is executed in the form of hardware structures, software modules, or hardware structures plus software modules depends on the specific application and design constraints of the technical solution.

[0271] Figure 6 Shown is a schematic diagram of the structure of a possible communication device provided by the present application. Figure 6 The communication device shown can realize the functions of the terminal device or network device in the above method, and thus can also realize the beneficial effects of the above method embodiment. Figure 1 The network device 10 shown may also be a terminal device 20, or a module or unit of a terminal device or a network device.

[0272] like Figure 6 As shown, the communication device 1000 includes a transceiver unit 1100 and a processing unit 1200. The communication device 1000 can be used to implement the above Figures 2 to 5 The functions of the terminal device or the network device in the method embodiment are shown.

[0273] When the communication device 1000 is used to implement Figures 2 to 5When the network device in the embodiment shown in the figure is used, the transceiver unit 1100 is used to receive at least one first information, such as steps S201, S301, S401, S501 and / or other processes for the technology described herein. The processing unit 1200 is used to determine at least one first information, such as S200, S300, S400, S500 and / or other processes for the technology described herein.

[0274] When the communication device 1000 is used to implement Figures 2 to 5 When the terminal device in the embodiment shown in the figure performs functions, the transceiver unit 1100 is used to receive at least one first information, such as steps S201, S301, S401, S501 and / or other processes for the technology described herein. The processing unit 1200 is used to determine at least one first information, such as S202, S302, S402, S502 and / or other processes for the technology described herein.

[0275] In the embodiments of the present application, words such as "first" and "second" are only used for the purpose of distinguishing descriptions, and cannot be understood as indicating or implying relative importance, nor can they be understood as indicating or implying order. "At least one" means one or more, and "plurality" means two or more. "And / or" describes the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can represent: the existence of A alone, the existence of A and B at the same time, and the existence of B alone, where A and B can be singular or plural. The character " / " generally indicates that the previous and subsequent associated objects are in an "or" relationship. "At least one of the following" or similar expressions refers to any combination of these items, including any combination of single items or plural items. For example, at least one of a, b or c can represent: a, b, c, a and b, a and c, b and c, or a and b and c, where a, b, c can be single or multiple.

[0276] Figure 7 2000 is a schematic diagram of the structure of a network device provided in an embodiment of the present application, for example, a schematic diagram of the structure of a base station. The base station 2000 can be applied to Figure 1 In the system shown in the figure, the functions of the network device in the above method embodiment are performed. As shown in the figure, the base station 2000 may include one or more radio frequency units, such as a remote radio unit (RRU) 2100 and one or more baseband units (BBU) (also referred to as distributed units (DU)) 2200. The RRU 2100 may be referred to as a transceiver unit or a communication unit. Figure 6The transceiver unit 1100 in the RRU 2100 corresponds to the transceiver unit 1100. Optionally, the transceiver unit 2100 can also be called a transceiver, a transceiver circuit, or a transceiver, etc., which may include at least one antenna 2101 and a radio frequency unit 2102. Optionally, the transceiver unit 2100 may include a receiving unit and a sending unit, the receiving unit may correspond to a receiver (or a receiver, a receiving circuit), and the sending unit may correspond to a transmitter (or a transmitter, a transmitting circuit). The RRU 2100 part is mainly used for receiving and sending radio frequency signals and converting radio frequency signals into baseband signals. The BBU 2200 part is mainly used for baseband processing, controlling the base station, etc. The RRU 2100 and the BBU 2200 may be physically arranged together or physically separated, that is, a distributed base station.

[0277] The BBU 2200 is the control center of the base station, which can also be called a processing unit. Figure 6 The processing unit 1200 in the embodiment is mainly used to complete baseband processing functions, such as channel coding, multiplexing, modulation, spread spectrum, etc. For example, the BBU (processing unit) can be used to control the base station to execute the operation flow of the network device in the above method embodiment.

[0278] In one example, the BBU 2200 may be composed of one or more single boards, and multiple single boards may jointly support a wireless access network of a single access standard (such as an LTE network), or may respectively support wireless access networks of different access standards (such as an LTE network, a 5G network, or other networks). The BBU 2200 also includes a memory 2201 and a processor 2202. The memory 2201 is used to store necessary instructions and data. The processor 2202 is used to control the base station to perform necessary actions, for example, to control the base station to execute the operation process of the network device in the above method embodiment. The memory 2201 and the processor 2202 can serve one or more single boards. In other words, a memory and a processor may be separately set on each single board. It is also possible that multiple single boards share the same memory and processor. In addition, necessary circuits may be set on each single board.

[0279] It should be understood that Figure 7 The base station 2000 shown can implement various processes involving network devices in the aforementioned method embodiments. The operations or functions of various modules in the base station 2000 are respectively to implement the corresponding processes in the aforementioned method embodiments. For details, please refer to the description in the aforementioned method embodiments, which will not be repeated here.

[0280] The BBU 2200 can be used to perform the actions implemented by the network device described in the previous method embodiment, and the RRU 2100 can be used to perform the actions of the network device sending to or receiving from the terminal device described in the previous method embodiment. Please refer to the description in the previous method embodiment for details, which will not be repeated here.

[0281] Figure 8 3000 is a schematic diagram of the structure of the terminal device 3000 provided in an embodiment of the present application. As shown in the figure, the terminal device 3000 includes a processor 3001 and a transceiver 3002. Optionally, the terminal device 3000 may also include a memory 3003. The processor 3001, the transceiver 3002 and the memory 3003 may communicate with each other through an internal connection path to transmit control and / or data signals, and the memory 3003 is used to store a computer program, and the processor 3001 is used to call and run the computer program from the memory 3003 to control the transceiver 3002 to send and receive signals.

[0282] The processor 3001 and the memory 3003 can be combined into a processing device 3004, and the processor 3001 is used to execute the program code stored in the memory 3003 to implement the above functions. It should be understood that Figure 8 The processing device 3004 shown in the figure is only an example. In a specific implementation, the memory 3003 may also be integrated into the processor 3001, or be independent of the processor 3001. This application does not limit this.

[0283] The terminal device 3000 may further include an antenna 3010 for transmitting the uplink data or uplink control signaling output by the transceiver 3002 via a wireless signal.

[0284] It should be understood that Figure 8 The terminal device 3000 shown can implement various processes related to the terminal device in the aforementioned method embodiment. The operations or functions of each module in the terminal device 3000 are respectively to implement the corresponding processes in the aforementioned method embodiment. For details, please refer to the description in the aforementioned method embodiment, which will not be repeated here.

[0285] Optionally, the terminal device 3000 may further include a power supply 3005 for providing power to various devices or circuits in the terminal device.

[0286] In addition, in order to make the functions of the terminal device more complete, the terminal device 3000 may also include one or more of an input unit 3006, a display unit 3007, an audio circuit 3008, a camera 3009 and a sensor 3008, and the audio circuit may also include a speaker 30081, a microphone 30082, etc.

[0287] It should be understood that the processing device can be a chip. For example, the processing device can be a field programmable gate array (FPGA), 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 gates or transistor logic devices, discrete hardware components, a system on chip (SoC), a central processor unit (CPU), a network processor (NP), a digital signal processing circuit (DSP), a microcontroller unit (MCU), a programmable logic device (PLD) or other integrated chips. The 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 the processor can also be any conventional processor, etc. The steps of the method disclosed in the embodiments of the present application can be directly embodied as a hardware decoding processor to be executed, or the hardware and software modules in the decoding processor are combined to be executed. The software module can be located in a mature storage medium in the field such as random access memory, flash memory, read-only memory, programmable read-only memory or electrically erasable programmable memory, register, 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.

[0288] An embodiment of the present invention further provides a communication system, which includes at least one access network device and at least one communication apparatus for executing the above-mentioned embodiment of the present invention.

[0289] Optionally, the present application provides a chip system, which is used to support the implementation of the access method provided by the present application, for example, Figures 2 to 5The access method shown. The chip system includes at least one processor and an interface circuit, the interface circuit is used to provide input or output of instructions and / or data for at least one processor, and when at least one processor executes the above instructions, the chip system is used to implement the functions of the network device or terminal device in the access method provided in this application. In one possible design, the chip system also includes a memory. The memory is used to store program instructions and data necessary for the network device. Of course, the memory may not be in the chip system. The chip system can be composed of chips, and may also include chips and other discrete devices, which is not specifically limited in the embodiments of the present application.

[0290] like Fig. 9 The figure shows an example of a chip system provided in the present application. The chip system 900 includes a processor 901 and an interface circuit 902 . Optionally, the processor 901 and the interface circuit 902 may be connected via a bus 903 .

[0291] It should be understood that the references to "one embodiment", "an embodiment", or "an embodiment of the present invention" throughout the specification mean that the specific features, structures, or characteristics associated with the embodiment are included in at least one embodiment of the present invention. Therefore, the references to "in one embodiment", "in an embodiment", or "an embodiment of the present invention" throughout the specification do not necessarily refer to the same embodiment. In addition, these specific features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

[0292] In various embodiments of the present invention, it should be understood that 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 invention.

[0293] The specific implementation methods described above further illustrate the objectives, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above description is only a specific implementation method of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc. made on the basis of the technical solution of the present invention should be included in the scope of protection of the present invention.

[0294] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. An access method, characterized in that: The method comprises: receiving at least one first information, where the at least one first information is used to indicate a first access permission, where the first access permission indicates whether access is allowed for a first terminal device; Determine whether to allow access to the first terminal device according to the at least one first information, where the first terminal device is a first type of terminal device with reduced capability, and the at least one first information includes one or more bits; different bit state values ​​of the at least one first information indicate the following: not allowing the first terminal device to access; Allowing the first terminal device to access, and the first terminal device receives information based on the first resource; Allowing the first terminal device to access, and the first terminal device receives information based on the second resource; The first resource and the second resource are different control resource sets, random access resources or synchronization information resources.

2. The method according to claim 1, characterized in that At least one bit state value of the at least one first information indicates one or more of the time domain position information or frequency domain position information, code domain position information, resource index, time domain resource offset, frequency domain resource offset, code domain resource offset, power configuration, and beam resource of the first resource or the second resource.

3. The method according to claim 1 or 2, characterized in that: The resource information of the first resource and the second resource is different, and the resource information is at least one of the following: time domain position information, frequency domain position information, code domain position information, resource index, power configuration, beam resource, time domain resource offset value, frequency domain resource offset value or code domain resource offset value.

4. The method according to claim 1 or 2, characterized in that: The number of radio frequency channels of the first terminal device is 1; or, the number of transmitting antenna ports of the first terminal device is 1.

5. The method according to claim 1 or 2, characterized in that: The at least one first information is included in a master information block MIB; or, the at least one first information is included in downlink control information DCI; or, the at least one first information is included in a system information block SIB.

6. The method according to claim 1 or 2, characterized in that: The communication frequency between the first terminal device and the network device is in frequency range 1, and the at least one first information is included in a master information block MIB; or The communication frequency between the first terminal device and the network device is in frequency range 2, and the at least one first information is contained in downlink control information DCI or system information block SIB.

7. The method according to claim 1 or 2, characterized in that: One of the at least one first information is included in the master information block MIB, and another of the at least one first information is included in the downlink control information or the system information block.

8. The method according to claim 1 or 2, characterized in that: The communication frequency between the first terminal device and the network device is within frequency range 2.

9. An access method, characterized in that: The method comprises: receiving at least one first information, where the at least one first information is used to indicate a first access permission, where the first access permission indicates whether access is allowed for a first terminal device and whether access is allowed for a second terminal device; According to the at least one first information, determining whether to allow the first terminal device to access or determining whether to allow the second terminal device to access, the first terminal device is a first type of reduced capability terminal device, and the second terminal device is a second type of reduced capability terminal device; wherein the at least one first information includes one or more bits, and different bit state values ​​of the at least one first information indicate the following: The first terminal device is not allowed to access, and the second terminal device is not allowed to access; The first terminal device is not allowed to access, and the second terminal device is allowed to access based on the first resource; Not allowing the first terminal device to access, and allowing the second terminal device to access based on the second resource; Allowing the first terminal device to access based on the first resource, and not allowing the second terminal device to access; Allowing the first terminal device to access based on the second resource, and not allowing the second terminal device to access; Allowing the first terminal device to access, allowing the second terminal device to access, and the first terminal device and the second terminal device to access based on the first resource; The first terminal device is allowed to access, and the second terminal device is allowed to access. The first terminal device accesses based on a first resource, and the second terminal device accesses based on a second resource. The first resource and the second resource are different control resource sets, random access resources, or synchronization information resources.

10. The method according to claim 9, characterized in that At least one bit state value of the at least one first information indicates one or more of the time domain position information, frequency domain position information, code domain position information, resource index, time domain resource offset, frequency domain resource offset, code domain resource offset, power configuration, and beam resource of the first resource or the second resource.

11. The method according to claim 9 or 10, characterized in that: The resource information of the first resource and the second resource is different, and the resource information is at least one of the following: time domain position information, frequency domain position information, code domain position information, resource index, power configuration, beam resource, time domain resource offset value, frequency domain resource offset value or code domain resource offset value.

12. The method according to claim 9 or 10, characterized in that: The first terminal device and the second terminal device have different first characteristics, and the first characteristics are one or more of the number of RF channels, the number of transmitting antenna ports, the number of receiving antenna ports, the supported peak rate, and the application scenarios.

13. The method according to claim 9 or 10, characterized in that: The first terminal device and the second terminal device meet one or more of the following requirements: The number of radio frequency channels of the first terminal device is 1, and the number of radio frequency channels of the second terminal device is 2; The number of transmitting antenna ports of the first terminal device is 1, and the number of receiving antenna ports is 2; the number of transmitting antenna ports of the second terminal device is 2, and the number of receiving antenna ports is 4.

14. The method according to claim 9 or 10, characterized in that: The at least one first information is included in a master information block MIB; or, the at least one first information is included in downlink control information DCI; or, the at least one first information is included in a system information block SIB.

15. The method according to claim 9 or 10, characterized in that: The communication frequency between the first terminal device and the network device is in frequency range 1, and the at least one first information is included in a master information block MIB; or The communication frequency between the first terminal device and the network device is in frequency range 2, and the at least one first information is contained in downlink control information DCI or system information block SIB.

16. The method according to claim 9 or 10, characterized in that: One of the at least one first information is included in the master information block MIB, and another of the at least one first information is included in the downlink control information or the system information block.

17. The method according to claim 9 or 10, characterized in that: The communication frequency between the first terminal device and the network device is within frequency range 2.

18. An access method, characterized in that: The method comprises: Determining whether to allow access by the first terminal device; Send a system information block SIB, the SIB including at least one first information, the at least one first information is used to indicate a first access permission, the first access permission indicates whether the first terminal device is allowed to access, the first terminal device is a terminal device with reduced capability, and the at least one first information includes one or more bits; different bit state values ​​of the at least one first information indicate the following: not allowing the first terminal device to access; Allowing the first terminal device to access, and the first terminal device receives information based on the first resource; Allowing the first terminal device to access, and the first terminal device receives information based on the second resource; The first resource and the second resource are different control resource sets, random access resources or synchronization information resources.

19. The method according to claim 18, characterized in that At least one bit state value of the at least one first information indicates one or more of the time domain position information, frequency domain position information, code domain position information, resource index, time domain resource offset, frequency domain resource offset, code domain resource offset, power configuration, and beam resource of the first resource or the second resource.

20. The method according to claim 18 or 19, characterized in that The resource information of the first resource and the second resource is different, and the resource information is at least one of the following: time domain position information, frequency domain position information, code domain position information, resource index, power configuration, beam resource, time domain resource offset value, frequency domain resource offset value or code domain resource offset value.

21. The method according to claim 18 or 19, characterized in that The number of radio frequency channels of the first terminal device is 1; or, the number of transmitting antenna ports of the first terminal device is 1.

22. The method according to claim 18 or 19, characterized in that The at least one first information is included in a master information block MIB; or, the at least one first information is included in downlink control information DCI; or, the at least one first information is included in a system information block SIB.

23. The method according to claim 18 or 19, characterized in that: The communication frequency between the first terminal device and the network device is in frequency range 1, and the at least one first information is included in a master information block MIB; or The communication frequency between the first terminal device and the network device is in frequency range 2, and the at least one first information is contained in downlink control information DCI or system information block SIB.

24. The method according to claim 18 or 19, characterized in that: One of the at least one first information is included in the master information block MIB, and another of the at least one first information is included in the downlink control information or the system information block.

25. The method according to claim 18 or 19, characterized in that The communication frequency between the first terminal device and the network device is within frequency range 2.

26. An access method, characterized in that: The method comprises: Determine whether to allow a first terminal device to access and whether to allow a second terminal device to access, the first terminal device is a first type of reduced capability terminal device, and the second terminal device is a second type of reduced capability terminal device; Sending a system information block SIB, the SIB including at least one first information, the at least one first information being used to indicate a first access permission, the first access permission indicating whether a first terminal device is allowed to access and whether a second terminal device is allowed to access; wherein the at least one first information includes one or more bits, and different bit state values ​​of the at least one first information indicate the following; The first terminal device is not allowed to access, and the second terminal device is not allowed to access; The first terminal device is not allowed to access, and the second terminal device is allowed to access based on the first resource; Not allowing the first terminal device to access, and allowing the second terminal device to access based on the second resource; Allowing the first terminal device to access based on the first resource, and not allowing the second terminal device to access; Allowing the first terminal device to access based on the second resource, and not allowing the second terminal device to access; Allowing the first terminal device to access, allowing the second terminal device to access, and the first terminal device and the second terminal device to access based on the first resource; The first terminal device is allowed to access, and the second terminal device is allowed to access. The first terminal device accesses based on a first resource, and the second terminal device accesses based on a second resource. The first resource and the second resource are different control resource sets, random access resources, or synchronization information resources.

27. The method of claim 26, wherein: At least one bit state value of the at least one first information indicates one or more of the time domain position information, frequency domain position information, code domain position information, resource index, time domain resource offset, frequency domain resource offset, code domain resource offset, power configuration, and beam resource of the first resource or the second resource.

28. The method according to claim 26 or 27, characterized in that The resource information of the first resource and the second resource is different, and the resource information is at least one of the following: time domain position information, frequency domain position information, code domain position information, resource index, power configuration, beam resource, time domain resource offset value, frequency domain resource offset value or code domain resource offset value.

29. The method according to claim 26 or 27, characterized in that The first terminal device and the second terminal device have different first characteristics, and the first characteristics are one or more of the number of RF channels, the number of transmitting antenna ports, the number of receiving antenna ports, the supported peak rate, and the application scenarios.

30. The method according to claim 26 or 27, characterized in that The first terminal device and the second terminal device meet one or more of the following requirements: The number of radio frequency channels of the first terminal device is 1, and the number of radio frequency channels of the second terminal device is 2; The number of transmitting antenna ports of the first terminal device is 1, and the number of receiving antenna ports is 2; the number of transmitting antenna ports of the second terminal device is 2, and the number of receiving antenna ports is 4.

31. The method according to claim 26 or 27, characterized in that: The at least one first information is included in a master information block MIB; or, the at least one first information is included in downlink control information DCI; or, the at least one first information is included in a system information block SIB.

32. The method according to claim 26 or 27, characterized in that The communication frequency between the first terminal device and the network device is in frequency range 1, and the at least one first information is included in a master information block MIB; or The communication frequency between the first terminal device and the network device is in frequency range 2, and the at least one first information is contained in downlink control information DCI or system information block SIB.

33. The method according to claim 26 or 27, characterized in that: One of the at least one first information is included in the master information block MIB, and another of the at least one first information is included in the downlink control information or the system information block.

34. The method according to claim 26 or 27, characterized in that The communication frequency between the first terminal device and the network device is within frequency range 2.

35. A communication device, characterized in that: It includes at least one processor and an interface circuit, wherein the interface circuit is used to provide input or output of instructions and / or data for the at least one processor, and when the at least one processor executes the above instructions, the device implements the method as described in any one of claims 1 to 8, or the device implements the method as described in any one of claims 9 to 17.

36. A communication device, characterized in that: The device comprises at least one processor and an interface circuit, wherein the interface circuit is used to provide the at least one processor with input or output of instructions and / or data, and when the at least one processor executes the above instructions, the device implements the method as described in any one of claims 18 to 25, or the device implements the method as described in any one of claims 26 to 34.

37. A computer-readable storage medium, characterized in that: The method comprises a program or an instruction. When the program or the instruction is executed on a computer, the method according to any one of claims 1 to 8 is executed, or the method according to any one of claims 9 to 17 is executed.

38. A computer-readable storage medium, characterized in that: The method comprises a program or an instruction. When the program or the instruction is executed on a computer, the method according to any one of claims 18 to 25 is executed, or the method according to any one of claims 26 to 34 is executed.

39. A computer program product, the computer program product comprising: Computer program code, when the computer program code is executed, causes the method described in any one of claims 1 to 8 to be executed, or causes the method described in any one of claims 9 to 17 to be executed.

40. A computer program product, the computer program product comprising: Computer program code, when the computer program code is executed, causes the method of any one of claims 18 to 25 to be executed, or causes the method of any one of claims 26 to 34 to be executed.

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