Communication method and communication device

Abstract

Provided are a communication method and a communication device, the communication method comprising: a first network device determining first indication information, the first indication information being used for indicating that a terminal device of at least one first area is allowed to access or prohibited to access, each first area in the at least one first area is not overlapped with the other first areas, and the first areas are partial areas in a service area of the first network equipment; and sending the first indication information. According to the scheme, the first network device can perform access control on the terminal devices in the partial area in the service area, so that the storage pressure of the first network device and the influence on the system communication quality caused by the access of all terminal devices or multiple terminal devices in the service area to the first network device can be avoided.

Description

Technical Field

[0001] The present application relates to the field of communication technology, and more specifically, to a communication method and a communication device. Background Art

[0002] Satellite networks are a hot topic of research in the world today. Satellite communication technology has become increasingly mature. For example, non-terrestrial networks (NTN) use radio frequency networks or network segments on satellites to achieve communication, which can provide a wider coverage area, and satellite base stations are not easily damaged by natural disasters or external forces.

[0003] In the NTN network, satellites may not be able to communicate with each other due to the large distance. When the satellite communicates with the terminal, the terminal data needs to be stored on the satellite first. When the satellite moves to the location where the core network is located, the terminal data stored on the satellite is sent to the core network. When the satellite storage pressure is saturated, it may cause an access storm for the terminal equipment.

[0004] In the NTN scenario, a communication method is urgently needed to achieve access control to terminal devices while taking into account the storage capacity of the satellite. Summary of the invention

[0005] The present application provides a communication method and a communication device, which realize access control of terminal equipment under the premise of considering the storage capacity of the satellite.

[0006] In a first aspect, a communication method is provided. The method may be executed by a first network device, or may be executed by a chip or circuit configured in the first network device, and the present application does not limit this.

[0007] The method includes: determining first indication information, the first indication information is used to indicate whether terminal devices in at least one first area are allowed to access or prohibited to access, any two first areas in the at least one first area do not overlap, and the first area is a partial area in the service area of ​​the first network device; sending the first indication information.

[0008] In the present application, the first network device sends a broadcast signal to a service area, which includes different areas (hereinafter referred to as sub-areas for the sake of ease of description). The different sub-areas can be understood as dividing the service area of ​​the first network device into multiple non-overlapping areas, for example, area #a, area #b, etc. The directions of broadcast signals in different sub-areas are different, and broadcast signals in different directions correspond to different indexes, that is, the first network device sends broadcast signals indicated by different indexes to different sub-areas.

[0009] The first area can be understood as a part of the service area of ​​the first network device, or the first area is a sub-area included in the service area, and can also be understood as a part of the cell area. This application does not limit this.

[0010] Based on the above technical solution, the first network device can indicate to one or more terminal devices in the first area within the service area whether access is allowed. It can be understood that the terminal devices in the service area of ​​the first network device can initiate random access to the first network device, but the storage space of the first network device is limited. Once multiple terminal devices initiate random access to the first network device at the same time, the storage pressure of the first network device reaches saturation and cannot store the data of the terminal devices, resulting in communication failure. In this application, before the terminal device initiates random access, the first network device performs access control on the terminal devices in some areas within the service area, thereby avoiding all terminal devices or multiple terminal devices in the service area from accessing the first network device, causing storage pressure on the first network device and affecting the communication quality of the system.

[0011] In combination with the first aspect, in certain implementations of the first aspect, each of the at least one first area is a coverage area of ​​the first broadcast signal indicated by a first index, and the first indication information is used to indicate whether a terminal device that receives the first broadcast signal indicated by the first index is allowed to access or prohibited from access.

[0012] In this solution, the terminal device in the first area receives the first broadcast signal indicated by the first index, or in other words, the broadcast signal received by the terminal device in the first area is the first broadcast signal indicated by the first index. The first indication information is used to indicate whether the terminal device receiving the first broadcast signal indicated by the first index is allowed to access or prohibited to access.

[0013] In combination with the first aspect, in some implementations of the first aspect, the first network device indicates, through first indication information, whether some sub-areas in a service area (including different sub-areas) are allowed to access or prohibited to access.

[0014] In a possible implementation, the first network device indicates through the first indication information that some sub-areas in the service area (including different sub-areas) allow access and some sub-areas prohibit access.

[0015] In combination with the first aspect, in some implementations of the first aspect, the first indication information is associated with the first index.

[0016] In this technical solution, the first indication information corresponds to the first index, and the correspondence between the first indication information and the first index can determine whether a terminal device that receives the broadcast signal indicated by the first index is allowed to access or prohibited to access.

[0017] In combination with the first aspect, in some implementations of the first aspect, the first area is a coverage area of ​​the first broadcast signal corresponding to the first direction.

[0018] In this technical solution, the first network device sends broadcast signals in different directions to different sub-areas included in the service area, and the first network device indicates through indication information whether the terminal device that receives the first broadcast signal indicated by the first direction is allowed to access or prohibited to access.

[0019] In combination with the first aspect, in some implementations of the first aspect, the first indication information is used to indicate whether a terminal device that receives a first broadcast signal indicating a first direction is allowed to access or prohibited to access.

[0020] In combination with the first aspect, in some implementations of the first aspect, the first indication information is determined according to a storage status of the first network device.

[0021] In this technical solution, the first network device dynamically performs access control according to its own storage capacity, thereby improving the flexibility of access control.

[0022] In combination with the first aspect, in some implementations of the first aspect, the first network device determines, based on its own storage status, that some or all terminal devices within a service range can be allowed to initiate random access.

[0023] In combination with the first aspect, in some implementations of the first aspect, when the storage space of the first network device is sufficient, the first network device may allow all terminal devices in the service area to initiate random access.

[0024] In combination with the first aspect, in some implementations of the first aspect, when the storage space of the first network device is seriously insufficient, the first network device may prohibit all terminal devices in the service area from initiating random access.

[0025] In combination with the first aspect, in some implementations of the first aspect, a first duration is sent, where the first duration is the length of time during which a terminal device in each first area of ​​the at least one first area is allowed to access or prohibited to access.

[0026] In this technical solution, the first network device configures the duration of allowing or prohibiting access to the terminal device, and the terminal device can save power consumption of receiving broadcast signals based on the duration information.

[0027] In combination with the first aspect, in some implementations of the first aspect, the method further includes: sending second indication information, where the second indication information is used to instruct the terminal device to initiate random access to the second network device.

[0028] In combination with the first aspect, in some implementations of the first aspect, first resource information is sent to the terminal device, and the first resource information is used by the terminal device to initiate random access to the second network device.

[0029] In combination with the first aspect, in some implementations of the first aspect, the first resource information is used by the terminal device to initiate random access to the second network device according to priority information.

[0030] In this solution, the communication needs of high-priority terminal devices or high-service priority terminal devices can be ensured, thereby guaranteeing user experience.

[0031] In combination with the first aspect, in some implementations of the first aspect, third indication information is sent, where the third indication information is used to indicate the ephemeris information and / or service time information of the second network device.

[0032] In this solution, the resource allocation of different satellites can be optimized and the storage overhead between different satellites can be balanced.

[0033] In a second aspect, a communication method is provided. The method may be executed by a terminal device, or may be executed by a chip or circuit configured in the terminal device, and the present application does not limit this.

[0034] The method includes: receiving first indication information, wherein the first indication information indicates whether terminal devices in at least one first area are allowed to access or prohibited to access, each first area in the at least one first area does not overlap, and the first area is a partial area in the service area of ​​a first network device; determining whether to initiate access to the first network device based on the first indication information.

[0035] In the present application, the first network device sends a broadcast signal to a service area, which includes different areas (hereinafter referred to as sub-areas for the sake of ease of description). The different sub-areas can be understood as dividing the service area of ​​the first network device into multiple non-overlapping areas, for example, area #a, area #b, etc. The directions of broadcast signals in different sub-areas are different, and broadcast signals in different directions correspond to different indexes, that is, the first network device sends broadcast signals indicated by different indexes to different sub-areas.

[0036] The first area can be understood as a part of the service area of ​​the first network device, or in other words, the first area is a sub-area included in the service area, and can also be understood as a part of the cell area. This application does not limit this.

[0037] Based on the above technical solution, the terminal device receives the first indication information of the first network device, and determines whether to allow access according to the indication information. It can be understood that the terminal devices in the service area of ​​the first network device can initiate random access to the first network device, but the storage space of the first network device is limited. Once multiple terminal devices initiate random access to the first network device at the same time, the storage pressure of the first network device reaches saturation, and the data of the terminal devices cannot be stored, resulting in communication failure. In this application, before the terminal device initiates random access, the first network device performs access control on the terminal devices in some areas of the service area, thereby avoiding all terminal devices or multiple terminal devices in the service area from accessing the first network device, causing storage pressure on the first network device and affecting the communication quality of the system.

[0038] In combination with the second aspect, in certain implementations of the second aspect, each of the at least one first area is a coverage area of ​​the first broadcast signal indicated by a first index, and the first indication information is used to indicate whether a terminal device that receives the first broadcast signal indicated by the first index is allowed to access or prohibited from access.

[0039] In this solution, the terminal device in the first area receives the first broadcast signal indicated by the first index, or in other words, the broadcast signal received by the terminal device in the first area is the first broadcast signal indicated by the first index. The first indication information is used to indicate whether the terminal device receiving the first broadcast signal indicated by the first index is allowed to access or prohibited to access.

[0040] In combination with the second aspect, in some implementations of the second aspect, the first indication information is associated with the first index.

[0041] In this technical solution, the first indication information corresponds to the first index, and the terminal device can determine whether the terminal device that receives the broadcast signal indicated by the first index is allowed to access or prohibited to access through the correspondence between the first indication information and the first index.

[0042] In combination with the second aspect, in some implementations of the second aspect, a first duration is received, where the first duration is the length of time during which a terminal device in each first area of ​​the at least one first area is allowed to access or prohibited to access.

[0043] In this technical solution, the terminal device determines the duration for allowing or prohibiting access based on the duration information, thereby saving power consumption for obtaining broadcast signals.

[0044] In combination with the second aspect, in certain implementations of the second aspect, second indication information is received; and it is determined that access to the first network device is prohibited based on the first indication information; or, when the first terminal device fails to access the first network device, random access is initiated to the second network device based on the second indication information.

[0045] In combination with the second aspect, in some implementations of the second aspect, first resource information is received, and random access is initiated to the second network device based on the first resource information.

[0046] In combination with the second aspect, in some implementations of the second aspect, random access is initiated to the second network device according to the priority information.

[0047] In this solution, the communication needs of high-priority terminal devices or high-service priority terminal devices can be ensured, thereby guaranteeing user experience.

[0048] In combination with the second aspect, in some implementations of the second aspect, third indication information is received, where the third indication information is used to indicate ephemeris information and / or service time information of the second network device.

[0049] In this solution, the resource allocation of different satellites can be optimized and the storage overhead between different satellites can be balanced.

[0050] In a third aspect, a communication method is provided. The method may be executed by a first network device, or may be executed by a chip or circuit configured in the first network device, and the present application does not limit this.

[0051] The method comprises: determining fourth indication information according to a random access request of a terminal device, the fourth indication information being used to indicate whether the terminal device is allowed to access; and sending the fourth indication information.

[0052] In the present application, the first network device sends a broadcast signal to the service area, and correspondingly, the terminal device in the service area receives the broadcast signal.

[0053] There is no limitation on the manner in which the first network device sends the broadcast signal to the service area.

[0054] Based on the above technical solution, the first network device can determine whether to prohibit the terminal device from accessing according to the random access request initiated by the terminal device, and indicate it to the corresponding terminal device through downlink signaling. It can be understood that the terminal devices in the service area of ​​the first network device can access the first network device, but the storage space of the first network device is limited. Once multiple terminal devices access the first network device at the same time, the storage pressure of the first network device reaches saturation, and the data of the terminal devices cannot be stored, resulting in communication failure. In this application, when the terminal device initiates random access, the first network device determines whether to allow access according to the access competition situation, and can be more prepared to perform access control on terminal devices in some areas of the service area, thereby avoiding all terminal devices or multiple terminal devices in the service area from accessing the first network device, causing storage pressure on the first network device and affecting the system communication quality.

[0055] In combination with the third aspect, in certain implementations of the third aspect, a second duration is sent, where the second duration is used to indicate the length of time for which the terminal device is allowed to access or prohibited to access.

[0056] In this technical solution, the first network device configures the duration of allowing or prohibiting access to the terminal device, and the terminal device can save power consumption of receiving broadcast signals based on the duration information.

[0057] In combination with the third aspect, in certain implementations of the third aspect, the method further includes: sending fifth indication information, where the fifth indication information is used to instruct the terminal device to initiate random access to the second network device.

[0058] In combination with the third aspect, in certain implementations of the third aspect, first resource information is sent, where the first resource information is used by the terminal device to initiate random access to the second network device.

[0059] In combination with the third aspect, in certain implementations of the third aspect, the first resource information is used by the terminal device to initiate random access to the second network device according to priority information.

[0060] In this solution, the communication needs of high-priority terminal devices or high-service priority terminal devices can be ensured, thereby guaranteeing user experience.

[0061] In combination with the third aspect, in certain implementations of the third aspect, sixth indication information is sent, where the sixth indication information is used to indicate the ephemeris information and / or service time information of the second network device.

[0062] In this solution, the resource allocation of different satellites can be optimized and the storage overhead between different satellites can be balanced.

[0063] In a fourth aspect, a communication method is provided. The method may be executed by a terminal device, or may be executed by a chip or circuit configured in the terminal device, and the present application does not limit this.

[0064] The method comprises: sending a random access request; receiving fourth indication information; and determining whether to access the first network device according to the fourth indication information.

[0065] In the present application, the first network device sends a broadcast signal to the service area, and correspondingly, the terminal device in the service area receives the broadcast signal.

[0066] There is no limitation on the manner in which the first network device sends the broadcast signal to the service area.

[0067] Based on the above technical solution, after the terminal device initiates a random access request to the first network device, it receives the fourth indication message sent by the first network device, and determines whether to prohibit the terminal device from accessing according to the fourth indication information. It can be understood that the terminal devices in the service area of ​​the first network device can access the first network device, but the storage space of the first network device is limited. Once multiple terminal devices access the first network device at the same time, the storage pressure of the first network device reaches a saturated state, and the data of the terminal devices cannot be stored, resulting in communication failure. In this application, when the terminal device initiates random access, the first network device determines whether to allow access according to the access competition situation, and can be more prepared to perform access control on terminal devices in some areas of the service area, thereby avoiding all terminal devices or multiple terminal devices in the service area from accessing the first network device, causing storage pressure on the first network device and affecting the communication quality of the system.

[0068] In combination with the fourth aspect, in certain implementations of the fourth aspect, a second duration is received, where the second duration is used to indicate the length of time for which the terminal device is allowed to access or prohibited to access.

[0069] In this technical solution, the terminal device can save power consumption in receiving broadcast signals according to the configured access permission or access prohibition duration.

[0070] In combination with the fourth aspect, in certain implementations of the fourth aspect, fifth indication information is received; and it is determined that access to the first network device is prohibited based on the fourth indication information; or, when the first terminal device fails to access the first network device, random access is initiated to the second network device based on the fifth indication information.

[0071] In combination with the fourth aspect, in certain implementations of the fourth aspect, first resource information is received, and random access is initiated to the second network device based on the first resource information.

[0072] In combination with the fourth aspect, in certain implementations of the fourth aspect, random access is initiated to the second network device according to the priority information.

[0073] In this solution, the communication needs of high-priority terminal devices or high-service priority terminal devices can be ensured, thereby guaranteeing user experience.

[0074] In combination with the fourth aspect, in certain implementations of the fourth aspect, sixth indication information is received, where the sixth indication information is used to indicate the ephemeris information and / or service time information of the second network device.

[0075] In this solution, the resource allocation of different satellites can be optimized and the storage overhead between different satellites can be balanced.

[0076] In a fifth aspect, a communication method is provided. The method can be executed by the first network device, or can also be executed by a chip or circuit configured in the first network device, and the present application does not limit this.

[0077] The method includes: determining seventh indication information according to the storage status of the first network device, the seventh indication information including the storage status level of the first network device; and sending the seventh indication information.

[0078] In the present application, the first network device sends a broadcast signal to the service area, and correspondingly, the terminal device in the service area receives the broadcast signal.

[0079] There is no limitation on the manner in which the first network device sends the broadcast signal to the service area.

[0080] Based on the above technical solution, the first network device can indicate the storage status level to the terminal device, and the storage status level can be used as auxiliary information for the terminal device to determine whether to access the first network device, that is, the terminal device determines the storage space of the first network device according to the storage status level, and determines whether to access the first network device according to the size of the storage space. Thus, access control can be implemented more accurately from the terminal device side. Furthermore, the terminal can also determine whether to access the first network device based on its own priority or service priority, so as to ensure the smooth execution of high-priority services and ensure user experience.

[0081] In combination with the fifth aspect, in certain implementations of the fifth aspect, the seventh indication information is used by the terminal device to determine whether to initiate random access.

[0082] In combination with the fifth aspect, in certain implementations of the fifth aspect, a third duration is sent, and the third duration is the effective duration of the seventh indication information.

[0083] In this technical solution, the first network device configures the duration of the storage status level to the terminal device, and the terminal device can save power consumption in acquiring the broadcast signal based on the duration information.

[0084] In combination with the fifth aspect, in certain implementations of the fifth aspect, an access request from the terminal device is received, the access request including a service type; and an access permission message or an access rejection message is sent according to the service type.

[0085] In this solution, the communication needs of high-priority terminal devices or high-service priority terminal devices can be ensured, thereby guaranteeing user experience.

[0086] In combination with the fifth aspect, in certain implementations of the fifth aspect, the method further includes: sending eighth indication information, where the eighth indication information is used to instruct the terminal device to initiate random access to the second network device.

[0087] In combination with the fifth aspect, in certain implementations of the fifth aspect, first resource information is sent, where the first resource information is used by the terminal device to initiate random access to the second network device.

[0088] In combination with the fifth aspect, in certain implementations of the fifth aspect, the first resource information is used by the terminal device to initiate random access to the second network device according to priority information.

[0089] In this solution, the communication needs of high-priority terminal devices or high-service priority terminal devices can be ensured, thereby guaranteeing user experience.

[0090] In combination with the fifth aspect, in certain implementations of the fifth aspect, ninth indication information is sent, where the ninth indication information is used to indicate the ephemeris information and / or service time information of the second network device.

[0091] In this solution, the resource allocation of different satellites can be optimized and the storage overhead between different satellites can be balanced.

[0092] In a sixth aspect, a communication method is provided. The method may be executed by a terminal device, or may be executed by a chip or circuit configured in the terminal device, and the present application does not limit this.

[0093] The method comprises: receiving seventh indication information, wherein the seventh indication information comprises a storage status level of the first network device; and determining whether to initiate random access according to the first indication information.

[0094] In the present application, the first network device sends a broadcast signal to the service area, and correspondingly, the terminal device in the service area receives the broadcast signal.

[0095] There is no limitation on the manner in which the first network device sends the broadcast signal to the service area.

[0096] Based on the above technical solution, the storage status level indicated by the first network device is received by the terminal device, and the storage status level can be used as auxiliary information for the terminal device to determine whether to access the first network device, that is, the terminal device determines the storage space of the first network device according to the storage status level, and determines whether to access the first network device according to the size of the storage space. Thus, access control can be implemented more accurately from the terminal device side. Furthermore, the terminal can also determine whether to access the first network device based on its own priority or service priority, so as to ensure the smooth execution of high-priority services and ensure user experience.

[0097] In combination with the sixth aspect, in certain implementations of the sixth aspect, a third duration is received, where the third duration is the effective duration of the seventh indication information.

[0098] In this technical solution, the first network device configures the duration of the storage status level to the terminal device, and the terminal device can save power consumption in acquiring the broadcast signal based on the duration information.

[0099] In combination with the sixth aspect, in certain implementations of the sixth aspect, an access request is sent, wherein the access request includes a service type; and an access permission message or an access rejection message is received.

[0100] In combination with the sixth aspect, in certain implementations of the sixth aspect, the method also includes: receiving eighth indication information; determining to prohibit access to the first network device based on the seventh indication information, or, when the first terminal device fails to access the first network device, initiating random access to the second network device based on the eighth indication information.

[0101] In this solution, the communication needs of high-priority terminal devices or high-service priority terminal devices can be ensured, thereby guaranteeing user experience.

[0102] In combination with the sixth aspect, in certain implementations of the sixth aspect, first resource information is received, where the first resource information is used by the terminal device to initiate random access to the second network device.

[0103] In combination with the sixth aspect, in certain implementations of the sixth aspect, random access is initiated to the second network device based on priority information.

[0104] In this solution, the communication needs of high-priority terminal devices or high-service priority terminal devices can be ensured, thereby guaranteeing user experience.

[0105] In combination with the sixth aspect, in certain implementations of the sixth aspect, ninth indication information is received, where the ninth indication information is used to indicate the ephemeris information and / or service time information of the second network device.

[0106] In this solution, the resource allocation of different satellites can be optimized and the storage overhead between different satellites can be balanced.

[0107] In a seventh aspect, a communication device is provided, which may be a first network device, or may be a chip or circuit configured in the first network device, and the present application does not limit this.

[0108] The device includes: a processing unit, used to determine first indication information, wherein the first indication information is used to indicate whether terminal devices in at least one first area are allowed to access or prohibited to access, each of the at least one first area does not overlap with the other first areas, and the first area is a partial area in the service area of ​​the first network device; and a transceiver unit, used to send the first indication information.

[0109] In combination with the seventh aspect, in certain implementations of the seventh aspect, each of the at least one first area is a coverage area of ​​the first broadcast signal indicated by a first index, and the first indication information is used to indicate whether a terminal device that receives the first broadcast signal indicated by the first index is allowed to access or prohibited from access.

[0110] In combination with the seventh aspect, in certain implementations of the seventh aspect, the first network device indicates through first indication information whether access is allowed or prohibited to some sub-areas in the service area (including different sub-areas).

[0111] In a possible implementation, the first network device indicates through the first indication information that some sub-areas in the service area (including different sub-areas) allow access and some sub-areas prohibit access.

[0112] In combination with the seventh aspect, in certain implementations of the seventh aspect, the first indication information is associated with the first index.

[0113] In combination with the seventh aspect, in certain implementations of the seventh aspect, the first area is a coverage area of ​​the first broadcast signal corresponding to the first direction.

[0114] In combination with the seventh aspect, in certain implementations of the seventh aspect, the first indication information is used to indicate whether a terminal device that receives a first broadcast signal indicating a first direction is allowed to access or prohibited to access.

[0115] In combination with the seventh aspect, in some implementations of the seventh aspect, the processing unit is further used to determine the first indication information according to the storage status of the first network device.

[0116] In combination with the seventh aspect, in certain implementations of the seventh aspect, the processing unit is further used to determine, based on its own storage status, that some or all terminal devices within the service range can be allowed to initiate random access.

[0117] In combination with the seventh aspect, in certain implementations of the seventh aspect, when the storage space of the first network device is sufficient, the processing unit is further used to allow all terminal devices in the service area to initiate random access.

[0118] In combination with the seventh aspect, in certain implementations of the seventh aspect, when the storage space of the first network device is seriously insufficient, the first network device may prohibit all terminal devices in the service area from initiating random access.

[0119] In combination with the seventh aspect, in certain implementations of the seventh aspect, the transceiver unit is further used to send a first duration, where the first duration is the length of time during which terminal devices in each first area of ​​the at least one first area are allowed to access or prohibited from accessing.

[0120] In combination with the seventh aspect, in certain implementations of the seventh aspect, the transceiver unit is further used to send second indication information, where the second indication information is used to instruct the terminal device to initiate random access to the second network device.

[0121] In combination with the seventh aspect, in certain implementations of the seventh aspect, the transceiver unit is further used to send first resource information to the terminal device, and the first resource information is used by the terminal device to initiate random access to the second network device.

[0122] In combination with the seventh aspect, in certain implementations of the seventh aspect, the first resource information is used by the terminal device to initiate random access to the second network device according to priority information.

[0123] In combination with the seventh aspect, in certain implementations of the seventh aspect, the transceiver unit is further used to send third indication information, where the third indication information is used to indicate the ephemeris information and / or service time information of the second network device.

[0124] In an eighth aspect, a communication device is provided, which may be a terminal device, or may be a chip or circuit configured in the terminal device, and the present application does not limit this.

[0125] The device includes: a transceiver unit, used to receive first indication information, wherein the first indication information indicates whether terminal equipment in at least one first area is allowed to access or prohibited to access, each first area in the at least one first area does not overlap, and the first area is a partial area in the service area of ​​a first network device; and a processing unit, used to determine whether to initiate access to the first network device based on the first indication information.

[0126] In combination with the eighth aspect, in certain implementations of the eighth aspect, each of the at least one first area is a coverage area of ​​the first broadcast signal indicated by a first index, and the first indication information is used to indicate whether a terminal device that receives the first broadcast signal indicated by the first index is allowed to access or prohibited from access.

[0127] In combination with the eighth aspect, in certain implementations of the eighth aspect, the first indication information is associated with the first index.

[0128] In combination with the eighth aspect, in certain implementations of the eighth aspect, the transceiver unit is further used to receive a first duration, where the first duration is the length of time during which terminal devices in each first area of ​​the at least one first area are allowed to access or prohibited from accessing.

[0129] In combination with the eighth aspect, in certain implementation methods of the eighth aspect, the transceiver unit is also used to receive second indication information; the processing unit is also used to determine whether to prohibit access to the first network device based on the first indication information, or when the first terminal device fails to access the first network device, initiate random access to the second network device based on the second indication information.

[0130] In combination with the eighth aspect, in certain implementations of the eighth aspect, the transceiver unit is further used to receive first resource information, and the processing unit is further used to initiate random access to the second network device based on the first resource information.

[0131] In combination with the eighth aspect, in certain implementations of the eighth aspect, the processing unit is further used to initiate random access to the second network device according to the priority information.

[0132] In combination with the eighth aspect, in certain implementations of the eighth aspect, the transceiver unit is further used to receive third indication information, where the third indication information is used to indicate the ephemeris information and / or service time information of the second network device.

[0133] In a ninth aspect, a communication device is provided, which may be a first network device, or may be a chip or circuit configured in the first network device, and the present application does not limit this.

[0134] The device comprises: a processing unit, used for determining fourth indication information according to a random access request of a terminal device, wherein the fourth indication information is used for indicating whether the terminal device is allowed to access; and a transceiver unit, used for sending the fourth indication information.

[0135] In combination with the ninth aspect, in certain implementations of the ninth aspect, the transceiver unit is further used to send a second duration, where the second duration is used to indicate the length of time for which the terminal device is allowed to access or prohibited to access.

[0136] In combination with the ninth aspect, in certain implementations of the ninth aspect, the transceiver unit is further used to send fifth indication information, where the fifth indication information is used to instruct the terminal device to initiate random access to the second network device.

[0137] In combination with the ninth aspect, in certain implementations of the ninth aspect, the transceiver unit is further used to send first resource information, where the first resource information is used by the terminal device to initiate random access to the second network device.

[0138] In combination with the ninth aspect, in certain implementations of the ninth aspect, the first resource information is used by the terminal device to initiate random access to the second network device according to priority information.

[0139] In combination with the ninth aspect, in certain implementations of the ninth aspect, the transceiver unit is further used to send sixth indication information, where the sixth indication information is used to indicate the ephemeris information and / or service time information of the second network device.

[0140] In the tenth aspect, a communication device is provided, which may be a terminal device, or may be a chip or circuit configured in the terminal device, which is not limited in the present application.

[0141] The device comprises: a transceiver unit, used for sending a random access request; the transceiver unit is also used for receiving fourth indication information; and a processing unit, used for determining whether to access the first network device according to the fourth indication information.

[0142] In combination with the tenth aspect, in certain implementations of the tenth aspect, the transceiver unit is further used to receive a second duration, where the second duration is used to indicate the length of time for which the terminal device is allowed to access or prohibited to access.

[0143] In combination with the tenth aspect, in certain implementations of the tenth aspect, the transceiver unit is also used to receive fifth indication information; the processing unit is also used to determine whether to prohibit access to the first network device based on the fourth indication information, or when the first terminal device fails to access the first network device, initiate random access to the second network device based on the fifth indication information.

[0144] In combination with the tenth aspect, in certain implementations of the tenth aspect, the transceiver unit is further used to receive first resource information, and the processing unit is further used to initiate random access to the second network device based on the first resource information.

[0145] In combination with the tenth aspect, in certain implementations of the tenth aspect, the processing unit is further used to initiate random access to the second network device according to the priority information.

[0146] In combination with the tenth aspect, in certain implementations of the tenth aspect, the transceiver unit is further used to receive sixth indication information, where the sixth indication information is used to indicate the ephemeris information and / or service time information of the second network device.

[0147] In the eleventh aspect, a communication device is provided, which may be a first network device, or may be a chip or circuit configured in the first network device, and the present application does not limit this.

[0148] The device comprises: a processing unit, used for determining seventh indication information according to the storage status of the first network device, wherein the seventh indication information comprises the storage status level of the first network device; and a transceiver unit, used for sending the seventh indication information.

[0149] In combination with the eleventh aspect, in certain implementations of the eleventh aspect, the seventh indication information is used by the terminal device to determine whether to initiate random access.

[0150] In combination with the eleventh aspect, in certain implementations of the eleventh aspect, the transceiver unit is further used to send a third duration, and the third duration is the effective duration of the seventh indication information.

[0151] In combination with the eleventh aspect, in certain implementations of the eleventh aspect, the transceiver unit is further used to receive an access request from the terminal device, wherein the access request includes a service type; the processing unit is further used to send an access permission message or an access rejection message based on the service type.

[0152] In combination with the eleventh aspect, in certain implementations of the eleventh aspect, the transceiver unit is further used to send eighth indication information, where the eighth indication information is used to instruct the terminal device to initiate random access to the second network device.

[0153] In combination with the eleventh aspect, in certain implementations of the eleventh aspect, the transceiver unit is further used to send first resource information, where the first resource information is used by the terminal device to initiate random access to the second network device.

[0154] In combination with the eleventh aspect, in certain implementations of the eleventh aspect, the first resource information is used by the terminal device to initiate random access to the second network device according to priority information.

[0155] In combination with the eleventh aspect, in certain implementations of the eleventh aspect, the transceiver unit is further used to send ninth indication information, where the ninth indication information is used to indicate the ephemeris information and / or service time information of the second network device.

[0156] In a twelfth aspect, a communication device is provided, which may be a terminal device, or may be a chip or circuit configured in the terminal device, and the present application does not limit this.

[0157] The device comprises: a transceiver unit, configured to receive seventh indication information, wherein the seventh indication information comprises a storage status level of the first network device; and a processing unit, configured to determine whether to initiate random access according to the first indication information.

[0158] In combination with the twelfth aspect, in certain implementations of the twelfth aspect, the transceiver unit is further used to receive a third duration, where the third duration is the effective duration of the seventh indication information.

[0159] In combination with the twelfth aspect, in certain implementations of the twelfth aspect, the transceiver unit is further used to send an access request, wherein the access request includes a service type; the transceiver unit is further used to receive an access permission message or an access rejection message.

[0160] In combination with the twelfth aspect, in certain implementations of the twelfth aspect, the transceiver unit is also used to receive an eighth indication information; the processing unit is also used to determine whether to prohibit access to the first network device based on the seventh indication information, or when the first terminal device fails to access the first network device, initiate random access to the second network device based on the eighth indication information.

[0161] In combination with the twelfth aspect, in certain implementations of the twelfth aspect, the transceiver unit is further used to receive first resource information, where the first resource information is used by the terminal device to initiate random access to the second network device.

[0162] In combination with the twelfth aspect, in certain implementations of the twelfth aspect, the processing unit is further used to initiate random access to the second network device according to the priority information.

[0163] In combination with the twelfth aspect, in certain implementations of the twelfth aspect, the transceiver unit is further used to receive ninth indication information, where the ninth indication information is used to indicate the ephemeris information and / or service time information of the second network device.

[0164] In a thirteenth aspect, a communication device is provided, which is used to execute the method provided in any of the first to sixth aspects. Specifically, the communication device may include a unit and / or module, such as a processing unit and / or a communication unit, for executing the method provided in any of the above implementations of any of the first to sixth aspects.

[0165] In one implementation, the communication device includes a communication unit and a processing unit, the communication unit may be a transceiver, or an input / output interface; the processing unit may be at least one processor. Optionally, the transceiver may be a transceiver circuit. Optionally, the input / output interface may be an input / output circuit.

[0166] In another implementation, the communication device is a chip, a chip system or a circuit in a network device. When the communication device is a chip, a chip system or a circuit in a network device, the communication unit may be an input / output interface, an interface circuit, an output circuit, an input circuit, a pin or a related circuit on the chip, the chip system or the circuit; the processing unit may be at least one processor, a processing circuit or a logic circuit.

[0167] In a fourteenth aspect, a communication device is provided, comprising a processor and, optionally, a memory, wherein the processor is used to control a transceiver to send and receive signals, the memory is used to store a computer program, and the processor is used to call and run the computer program from the memory, so that the sending device executes a method in any possible implementation of any aspect from the first to the sixth aspect.

[0168] Optionally, the processor is one or more and the memory is one or more.

[0169] Optionally, the memory may be integrated with the processor, or the memory may be provided separately from the processor.

[0170] Optionally, the network device further includes a transceiver, which may specifically be a transmitter (transmitter) and a receiver (receiver).

[0171] In the fifteenth aspect, a computer-readable storage medium is provided, which stores a computer program or code. When the computer program or code is run on a computer, the computer executes a method in any possible implementation of any aspect from the first to the sixth aspect.

[0172] In the sixteenth aspect, a chip is provided, comprising at least one processor, wherein the at least one processor is coupled to a memory, wherein the memory is used to store a computer program, and the processor is used to call and run the computer program from the memory, so that a sending device equipped with the chip system executes a method in any possible implementation of any aspect from the first aspect to the sixth aspect.

[0173] The chip may include an input circuit or interface for sending information or data, and an output circuit or interface for receiving information or data.

[0174] In the seventeenth aspect, a computer program product is provided, which includes: a computer program code, which, when the computer program code is sent and executed by a device, executes a method in any possible implementation of any aspect from the first to the sixth aspect.

[0175] The beneficial effects of the seventh to seventeenth aspects can refer to the beneficial effects of the first to sixth aspects and will not be elaborated on again. BRIEF DESCRIPTION OF THE DRAWINGS

[0176] Figure 1 It is a schematic diagram of an architecture 100 of a communication system applicable to an embodiment of the present application.

[0177] Figure 2 It is a schematic diagram of an architecture 200 of a communication system applicable to an embodiment of the present application.

[0178] Figure 3 It is a schematic diagram of an architecture 300 of a communication system applicable to an embodiment of the present application.

[0179] Figure 4 It is a schematic diagram of an architecture 400 of a communication system applicable to an embodiment of the present application.

[0180] Figure 5 It is a schematic diagram of an architecture 500 of a communication system applicable to an embodiment of the present application.

[0181] Figure 6 It is a schematic flow chart of a communication method applicable to an embodiment of the present application.

[0182] Figure 7 It is a schematic flow chart of a communication method applicable to an embodiment of the present application.

[0183] Figure 8 It is a schematic flow chart of a communication method applicable to an embodiment of the present application.

[0184] Fig. 9 It is a structural block diagram of a communication device applicable to an embodiment of the present application.

[0185] Fig.10 It is a structural block diagram of a communication device applicable to an embodiment of the present application. DETAILED DESCRIPTION

[0186] The technical solution in this application will be described below in conjunction with the accompanying drawings.

[0187] The technical solution provided in this application can be applied to various communication systems, such as: fifth generation (5th generation, 5G) or new radio (new radio, NR) system, long term evolution (long term evolution, LTE) system, LTE frequency division duplex (frequency division duplex, FDD) system, LTE time division duplex (time division duplex, TDD) system, etc. The technical solution provided in this application can also be applied to future communication systems, such as the sixth generation mobile communication system. The technical solution provided in this application can also be applied to device to device (D2D) communication, vehicle to everything (V2X) communication, machine to machine (M2M) communication, machine type communication (MTC), and Internet of things (IoT) communication system or other communication systems.

[0188] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0189] First, a communication system applicable to the present application is briefly introduced as follows.

[0190] Figure 1 1 is a schematic diagram of an architecture 100 of a communication system applicable to an embodiment of the present application. Figure 1 As shown in the figure, the ground mobile terminal UE accesses the network through the 5G new air interface, and the 5G access network equipment is deployed on the satellite and connected to the ground core network through a wireless link. At the same time, there is a wireless link between the satellites to complete the signaling interaction and user data transmission between the access network equipment. Figure 1 The various network elements and their interfaces are described as follows:

[0191] Terminal device: A mobile device that supports the 5G new air interface, typically a mobile phone, pad, etc. It can access the satellite network through the air interface and initiate calls, surf the Internet, and other services.

[0192] 5G access network equipment: mainly provides wireless access services, dispatches wireless resources to access terminals, provides reliable wireless transmission protocols and data encryption protocols, such as base stations.

[0193] 5G core network: user access control, mobility management, session management, user security authentication, billing and other services. It consists of multiple functional units, which can be divided into functional entities of control plane and data plane. Access and mobility management unit (AMF) is responsible for user access management, security authentication, and mobility management. User plane function (UPF) is responsible for managing the transmission of user plane data, traffic statistics and other functions.

[0194] Ground station: responsible for forwarding signaling and business data between satellite access network equipment and 5G core network.

[0195] 5G New Air Interface: The wireless link between the terminal and access network equipment.

[0196] Xn interface: The interface between 5G access network equipment and access network equipment, mainly used for signaling interaction such as switching.

[0197] NG interface: The interface between 5G access network equipment and 5G core network, which mainly interacts with high-level signaling of the core network (nonaccess stratum, NAS) and other signaling, as well as user service data.

[0198] In the non terrestrial network (NTN), a variety of NTN-RAN architectures are defined. The following is an example of the RAN architecture applicable to NTN.

[0199] Figure 2 It is a schematic diagram of an architecture 200 of a communication system applicable to an embodiment of the present application. Figure 2 The architecture shown is called RAN architecture with transparent satellite. Figure 2As shown, in the transparent scenario, the role of the satellite is to achieve frequency conversion and radio frequency amplification, which is equivalent to an analog RF repeater. Therefore, the satellite copies the NR Uu radio interface signal from the feeder link (between the NTN gateway and the satellite) to the service link (between the satellite and the UE), and vice versa. The satellite radio interface (SRI) on the feeder link transmits the NR-Uu interface signal, that is, the satellite does not terminate the NR Uu interface signal, but copies the signal. The NTN gateway supports all necessary functions for forwarding NR-Uu interface signals. Different transmission satellites can be connected to the same ground gNB.

[0200] Figure 3 It is a schematic diagram of another architecture 300 of a communication system applicable to an embodiment of the present application. Figure 3 The architecture shown is named regenerative satellite without ISL (inter-satellite link). In this architecture, the satellite acts as a base station to regenerate the signal received from the ground, that is, the service link between the UE and the satellite transmits the NR-Uu radio interface signal, and the feeder link between the NTN gateway and the satellite transmits the satellite radio interface (SRI) signal. The SRI interface is a transmission link between the NTN gateway and the satellite. The NG interface signal is transmitted to the NTN gateway through the SRI interface, and then forwarded by the NTN gateway to the core network equipment on the ground. The process of transmitting the NG interface signal from the ground core network equipment to the satellite base station is similar and will not be repeated here.

[0201] Figure 4 It is a schematic diagram of another architecture 400 of a communication system applicable to an embodiment of the present application. Figure 4 The architecture shown is named regenerative satellite with ISL. In this scenario, the satellite also acts as a base station. The difference from the previous scenario is that there is an ISL. ISL is an inter-satellite transmission link. As shown in the figure above, UEs served by an on-board base station can access the 5G core network through the ISL. Base stations on different satellites can be connected to the same terrestrial 5G core network.

[0202] Figure 5 It is a schematic diagram of another architecture 500 of a communication system applicable to an embodiment of the present application. Figure 5The architecture shown is named NG-RAN with a regenerative satellitebased on gNB-DU. In this scenario, the CU and DU of the base station are separated. The satellite is on board as the DU of the base station. The satellite regenerates the signal received from the ground, i.e. the service link between the UE and the satellite transmits the NR-Uu radio interface signal, and the feeder link between the NTN gateway and the satellite transmits the satellite radio interface (SRI) signal. The satellite radio interface is a transmission link that can transmit the logical interface F1 signal of the 3GPP standard. On the satellite radio interface, the F1 protocol signal is transmitted. The satellite can provide inter-satellite links (ISL) between satellites. The NTN gateway is a transport network layer node and supports all necessary transport protocols. DUs on different satellites can be connected to the same ground CU.

[0203] It should be noted that the above RAN architecture is only an exemplary description and may also be used in other NTN architectures, or 4G, 5G, and future wireless network architectures. The embodiments of the present application are not limited to this.

[0204] In the NTN network, satellites may not be able to communicate with each other due to the large distance. When the satellite communicates with the terminal, the terminal data needs to be stored on the satellite first. When the satellite moves to the location where the core network is located, the terminal data stored on the satellite is sent to the core network. When the satellite storage pressure is saturated, it may cause an access storm for the terminal equipment.

[0205] In view of this, an embodiment of the present application provides a communication solution to achieve access control of terminal devices while taking into account the storage capacity of the satellite.

[0206] The communication method provided by the embodiment of the present application will be described in detail below with reference to the accompanying drawings. The embodiment provided by the present application can be applied to the above Figures 1 to 5 The communication system shown is not limited.

[0207] The solution of this application is described in detail below.

[0208] Figure 6 It is a schematic flow chart of a communication method provided in an embodiment of the present application. For ease of description, method 600 is exemplarily described below by taking the interaction between the execution subject as a first network device and a terminal device as an example. It can be understood that the terminal device can be a component of the terminal device (such as a chip or circuit), or the first network device can also be a component of the network device (such as a chip or circuit), without limitation.

[0209] In the present application, the first network device sends a broadcast signal to a service area, which includes different areas (hereinafter referred to as sub-areas for the sake of ease of description). The different sub-areas can be understood as dividing the service area of ​​the first network device into multiple non-overlapping areas, for example, area #a, area #b, etc. The directions of broadcast signals in different sub-areas are different, and broadcast signals in different directions correspond to different indexes, that is, the first network device sends broadcast signals indicated by different indexes to different sub-areas.

[0210] Correspondingly, the terminal devices in the service area receive the broadcast signal, and the terminal devices in different sub-areas receive the broadcast signal in different directions.

[0211] The manner in which the first network device sends the broadcast signal to the service area is not limited. For example, the broadcast signal is sent according to the synchronization signal block (SSB) scanning method of the prior art.

[0212] Among them, the broadcast signal can be SSB.

[0213] Among them, the first network device includes the first satellite or an access network device corresponding to the first satellite, which is not limited in this application.

[0214] Figure 6 The illustrated method 600 may include the following steps.

[0215] S610: The first network device determines first indication information.

[0216] The first indication information indicates whether access is allowed or prohibited for terminal devices in at least one first area.

[0217] The first area may be understood as a part of the service area of ​​the first network device, or the first area is a sub-area of ​​the service area, wherein the service area may be a cell, which is not limited in the present application.

[0218] The multiple first regions do not overlap, or in other words, there is no overlap between any two first regions. To put it more simply, there is no overlap between different sub-regions.

[0219] It can be understood that the service area of ​​the first network device can be divided into multiple non-overlapping sub-areas, the first area is a sub-area among the multiple non-overlapping areas, and the multiple first areas are multiple sub-areas among the multiple non-overlapping areas. For example, the multiple sub-areas include area #a, area #b,..., area #z, etc. The first indication information can indicate a first area, for example, area #a, or multiple first areas, for example, area #a, area #c, and area #e.

[0220] In a possible implementation manner, the first area is a coverage area of ​​the first broadcast signal, and at least one first area includes one or more different first areas, and different first areas have different coverage areas.

[0221] The terminal device in the first area receives a first broadcast signal, and the first broadcast signal corresponds to a first index; in other words, the broadcast signal received by the terminal device in the first area is the first broadcast signal indicated by the first index.

[0222] It should be understood that different areas correspond to different broadcast signal indexes, or in other words, the directions of broadcast signals sent to different areas are different, and the indexes are also different. For example, the first network device sends broadcast signal #a to the terminal device in area #a, the index of broadcast signal #a is index #a, and area #a is the coverage area of ​​broadcast signal #a indicated by index #a; sends broadcast signal #b to the terminal device in area #b, the index of broadcast signal #b is index #b, and area #b is the coverage area of ​​broadcast signal #b indicated by index #b. The above-mentioned serial numbers of broadcast signals and serial numbers of indexes are only examples for ease of understanding, and this application does not limit this.

[0223] In a possible implementation, the first indication information is used to indicate whether a terminal device that has received the first broadcast signal is allowed to access or prohibited to access.

[0224] It can be understood that the first network device sends different broadcast signals to different sub-areas included in the service area, and the first network device indicates through indication information whether the terminal device that receives the first broadcast signal is allowed to access or prohibited to access. In other words, the first network device controls the access of terminal devices in different sub-areas through the first indication information. It can also be said that the first network device performs access control by sending different broadcast signals (with different indexes); it can also be said that the terminal device determines whether it can access the first network device based on the index of the received broadcast signal and the index indicated by the first indication information.

[0225] In a possible implementation, the first network device indicates, through the first indication information, whether some sub-areas in the service area (including different sub-areas) are allowed to access or prohibited to access.

[0226] Exemplarily, the first network device sends a broadcast signal #a indicated by index #a to terminal devices in area #a, sends a broadcast signal #b indicated by index #b to terminal devices in area #b, and sends a broadcast signal #c indicated by index #c to terminal devices in area #c. Assuming area #a as an example of a first area, the first network device sends a first indication message to indicate whether the terminal device receiving the broadcast signal #a indicated by index #a is allowed to access or prohibited to access. Accordingly, the terminal device in area #a receives the broadcast signal #a indicated by index #a, and initiates random access to the first network device or does not initiate random access according to the first indication message.

[0227] In a possible implementation, the first network device indicates through the first indication information that some sub-areas in the service area (including different sub-areas) allow access and some sub-areas prohibit access.

[0228] Exemplarily, the first network device sends a broadcast signal #a indicated by index #a to a terminal device in area #a, sends a broadcast signal #b indicated by index #b to a terminal device in area #b, and sends a broadcast signal #c indicated by index #c to a terminal device in area #c. Assuming area #a and area #c are examples of two first areas, the first indication information indicates that a terminal device that receives the broadcast signal #a indicated by index #a is allowed to access, and the first indication information also indicates that a terminal device that receives the broadcast signal #c indicated by index #c is prohibited from accessing. Accordingly, the terminal device in area #a receives the broadcast signal #a indicated by index #a, and initiates random access to the first network device according to the first indication information. The terminal device in area #c receives the broadcast signal #c indicated by index #c, and does not initiate random access to the first network device according to the first indication information. For the terminal device that receives the broadcast signal #b indicated by index #b, it may initiate random access to the first network device, or it may not initiate random access. This application does not limit this.

[0229] In a possible implementation manner, the first indication information is associated with the first index.

[0230] An optional understanding is that the first indication information corresponds to the first index, and the correspondence between the first indication information and the first index can determine whether a terminal device that receives the broadcast signal indicated by the first index is allowed to access or prohibited to access.

[0231] Exemplarily, the first indication information may be a bit map.

[0232] For example, the first network device sends 4 SSBs to 4 sub-areas, and the indexes of the 4 SSBs are 0, 1, 2, and 3 respectively. The first network device also sends a bit map "1100". The 4 bits of the bit map "1100" correspond to the 4 SSBs respectively, and the 4 bits respectively indicate that the terminal devices receiving the 4 SSBs can access or are prohibited from access. For example, the bit "1" indicates that access is allowed, and "0" indicates that access is prohibited. Then the bit "1100" is used to indicate that the terminal devices receiving the broadcast signals indicated by index 0 and index 1 are allowed to access, while the terminal devices receiving the broadcast signals indicated by index 2 and index 3 are prohibited from access. The bit "1" can also indicate that access is prohibited, and "0" can also indicate that access is allowed. This application is only for exemplary description, and the embodiments of the present application are not limited to this.

[0233] It should be noted that the bit map is only one possible implementation method. The first indication information can also be in a table form, which directly indicates the mapping relationship between the index and whether access is allowed. This application does not limit this.

[0234] In another possible implementation manner, the first area is a coverage area of ​​the first broadcast signal corresponding to the first direction.

[0235] It should be understood that the first network device sends different broadcast signals to different sub-areas in different directions, and the terminal device receives the broadcast signals in different directions. For example, the first network device sends broadcast signal #a in direction #a to the terminal device in area #a, and area #a is the coverage area of ​​broadcast signal #a in direction #a, and sends broadcast signal #b in direction #b to area #b, and area #b is the coverage area of ​​broadcast signal #b in direction #b. The serial numbers of the above broadcast signals and the serial numbers of the directions are only examples for ease of understanding, and this application does not limit this.

[0236] In a possible implementation, the first indication information is used to indicate whether a terminal device that has received a first broadcast signal indicating a first direction is allowed to access or prohibited to access.

[0237] It can be understood that the first network device sends broadcast signals in different directions to different sub-areas included in the service area, and the first network device indicates through indication information whether the terminal device that receives the first broadcast signal indicating the first direction is allowed to access or prohibited to access. In other words, the first network device controls the access of terminal devices in different sub-areas through the first indication information. It can also be said that the first network device controls access by sending different broadcast signals (in different directions); it can also be said that the terminal device determines whether it can access the first network device based on the direction of the received broadcast signal and the index indicated by the first indication information.

[0238] The following is an exemplary description of the manner in which the first network device determines the first indication information.

[0239] In a possible implementation, the first network device determines the first indication information according to its own storage status.

[0240] It can be understood that the first network device determines, based on its own storage status, that some or all of the terminal devices within the service range may be allowed to initiate random access.

[0241] Exemplarily, when the storage space of the first network device is insufficient, the first network device may allow terminal devices in some sub-areas to initiate random access, or the first network device may prohibit terminal devices in some sub-areas from initiating random access, or the first network device may simultaneously allow terminal devices in some sub-areas to initiate random access while prohibiting terminal devices in other sub-areas from initiating random access.

[0242] It can be understood that for terminal devices allowed to access, it can be a user type with a higher priority or a service type with a higher priority. Similarly, for terminal devices prohibited from access, it can be a user type with a lower priority or a service type with a lower priority. This application does not limit this.

[0243] Exemplarily, when the storage space of the first network device is sufficient, the first network device may allow all terminal devices within the service area to initiate random access.

[0244] Exemplarily, when the storage space of the first network device is seriously insufficient, the first network device may prohibit all terminal devices in the service area from initiating random access.

[0245] Exemplarily, the first network device may allow random access of some terminal devices according to a dynamic indication of the storage space status, or dynamically indicate prohibiting random access of some terminal devices. For example, when the storage space of the first network device is sufficient, the terminal device that was previously prohibited from random access may be instructed to allow random access, and when the storage space of the first network device is insufficient, the terminal device that was previously allowed to randomly access may be instructed to prohibit random access. It is understandable that the first network device can continuously adjust the access control of the terminal device according to the change of the storage space.

[0246] For example, the first indication information indicates that terminal devices in area #a are allowed to access, terminal devices in area #b and area #c are prohibited from access, and the first network device receives data from the terminal devices in area #a; when the storage space of the first network device is sufficient, the first network device resends the first indication information, indicating that terminal devices in area #b and area #c are allowed to access, and the first network device receives data from the terminal devices in area #b and area #c; optionally, when the storage space of the first network device is insufficient, the first network device may resend the first indication information, indicating that terminal devices in area #b and area #c are prohibited from access.

[0247] S620: The first network device sends first indication information to the terminal device.

[0248] Correspondingly, the terminal device receives the first indication information.

[0249] In the present application, the first indication information may be sent simultaneously via a broadcast message and a broadcast signal, or may be sent separately and independently, and the embodiments of the present application are not limited to this.

[0250] S630: The terminal device determines whether to access the first network device according to the first indication information.

[0251] The terminal device receives the first indication information, and there are two situations in which the access is allowed or prohibited according to the indication of the first indication information.

[0252] Case 1: The first indication information indicates that access is allowed.

[0253] For example, the terminal device is located in area #a and receives broadcast signal #a with index #a. The terminal device determines that terminal devices in area #a are allowed to access based on the first indication information. Then the terminal device can initiate a random access process.

[0254] Optionally, after the terminal device accesses the first network device, it can send data on the resources of the first broadcast signal. Correspondingly, the first network device receives the data of the terminal device based on the resources of the first broadcast signal.

[0255] After the first network device collects the data from the terminal device, it moves to an area with a ground station / core network, lands the data through the ground station and sends it to the core network.

[0256] Case 2: The first indication information indicates that access is prohibited.

[0257] For example, the terminal device is located in area #b and receives broadcast signal #b with index #b. The terminal device determines that terminal devices in area #b are prohibited from access based on the first indication information, then the terminal device does not initiate the access process.

[0258] Exemplarily, the terminal device may maintain a power-saving state, for example, the terminal device may enter an idle state while acquiring a synchronization signal from a next satellite, and may initiate an access process when a broadcast signal allowing access is received.

[0259] Exemplarily, the terminal device may acquire the synchronization signal of the next satellite based on the ephemeris information or auxiliary information of the next satellite, but this embodiment of the present application is not limited to this.

[0260] In a possible implementation, the first network device may continuously adjust the access control of the terminal device according to the change of the storage space, and correspondingly, the terminal device may initiate access or not initiate access according to the adjustment of the access control of the first network device.

[0261] For example, the first indication information indicates that terminal devices in area #a are allowed to access, terminal devices in area #b and area #c are prohibited from access, and terminal devices in area #a send data to the first network device; when the storage space of the first network device is sufficient, the first network device resends the first indication information, indicating that terminal devices in area #b and area #c are allowed to access, and terminal devices in area #b and area #c send data to the first network device; optionally, when the storage space of the first network device is insufficient, the first network device may resend the first indication information, indicating that terminal devices in area #b and area #c are prohibited from access, and terminal devices in area #b and area #c stop sending data to the first network device.

[0262] Optionally, the terminal device determines the SSB within the service time of the first network device, and when the prohibited state corresponding to the SSB direction received by the UE is released, random access can be initiated.

[0263] In a possible implementation, the first network device sends the first duration to the terminal device.

[0264] The first duration is the length of time during which the terminal equipment in each first area in at least one first area is allowed to access or prohibited to access.

[0265] Specifically, the first network device may configure the effective duration for prohibiting access and / or allowing access of the terminal corresponding to the first broadcast signal indicated by the first index.

[0266] For example, for broadcast signal #a, the first network device configures the terminal device that receives broadcast signal #a to allow access / prohibit access, and configures the duration and time starting point of its allowed access and the time starting reference point. When the terminal device receives broadcast signal #a and is configured to allow access, the terminal device initiates access according to the normal process and continues to access within the valid time. When the terminal device receives broadcast signal #a and is configured to prohibit access, the terminal device can initiate access according to the normal process after the valid time.

[0267] It can be understood that when the first duration is the effective duration for allowing the terminal device that receives the first broadcast signal to access, after the effective duration expires, the first network device can also indicate the duration for prohibiting access, or can continue to indicate the duration for allowing access; similarly, when the first duration is the effective duration for prohibiting the terminal device that receives the first broadcast signal from accessing, after the effective duration expires, the first network device can also indicate the duration for allowing access, or can continue to indicate the duration for prohibiting access. This application does not limit this.

[0268] In the present application, the effective duration can be indicated by a timer or by a remaining effective duration, which is not limited in the present application.

[0269] If the first network device indicates the remaining effective duration, then the starting point of the effective duration may not be indicated. This embodiment of the present application does not limit this.

[0270] In a possible implementation, the first network device may also send second indication information to the terminal device.

[0271] The second indication information is used to instruct the terminal device to initiate random access to the second network device.

[0272] The second network device includes a second satellite and / or an access network device corresponding to the second satellite.

[0273] It can be understood that the first network device can send a second indication information to the terminal device. When the terminal device fails to access within the service range of the first network device, or the terminal device is prohibited from accessing the first network device, the terminal device can initiate random access to the second network device based on the second indication information.

[0274] The second network device can be understood as a network device that takes over the service provided by the first network device. For example, after satellite #1 flies away, satellite #2 provides services.

[0275] It can also be understood as a service satellite in a multi-satellite collaboration scenario. For example, the satellites serving the current service area are satellite #1, satellite #2, and satellite #3. When satellite #1 indicates that the terminal device is not allowed to access, it can also inform the terminal of the satellite that can be accessed, such as satellite #3. Although the terminal device can receive the message from satellite #2, the terminal device will skip the synchronous downlink signal reception of satellite #2 and wait until satellite #3 is in service before initiating access.

[0276] In a possible implementation, the first network device may also send the first resource information to the terminal device.

[0277] The first resource information is used by the terminal device to initiate random access to the second network device.

[0278] Correspondingly, the terminal device initiates random access to the second network device according to the first resource information and the second indication information.

[0279] In this solution, the resource allocation of different satellites can be optimized and the storage overhead between different satellites can be balanced.

[0280] Optionally, the terminal device initiates random access to the second network device according to the first resource information and priority information.

[0281] Specifically, the terminal device accesses the second network device according to its own priority and the priority of the service.

[0282] Exemplarily, a terminal with a high priority or a terminal device with a high service priority can access the second network device; a terminal device with a low priority or a terminal device with a low service priority cannot access the second network device.

[0283] In this solution, the communication needs of high-priority terminal devices or high-service priority terminal devices can be ensured, thereby guaranteeing user experience.

[0284] Optionally, the first network device may also send third indication information to the terminal device.

[0285] The third indication information is used to indicate the ephemeris information and / or service time information of the second network device.

[0286] Correspondingly, the terminal device accesses the second network device according to the ephemeris information and / or the service time information.

[0287] In one possible implementation, the terminal device accesses the first network device according to the first indication information sent by the first network device, or accesses the second network device according to the second indication information sent by the first network device. Furthermore, the first network device or the second network device may prohibit the terminal device from sending an uplink signal. For example, the first network device or the second network device may instruct the terminal device to prohibit sending an uplink signal due to high storage space pressure. It can be understood that the terminal device can receive a downlink signal from the first network device or the second network device.

[0288] Exemplarily, taking the terminal device accessing the first network device as an example, the first network device can send a tenth indication message to the terminal device, where the tenth indication message is used to instruct the terminal device to prohibit sending uplink signals. Accordingly, the terminal device stops sending uplink signals after receiving the tenth indication message.

[0289] Optionally, the tenth indication information may include time information, for example, an effective time, and accordingly, the terminal device stops sending uplink signals at the corresponding effective time after receiving the tenth indication information. Alternatively, the time information includes a time period, and the terminal device stops sending uplink signals at the corresponding time period after receiving the tenth indication information. It can be understood that after the time period expires, the terminal device can continue to send uplink signals.

[0290] Optionally, the first network device may also send an eleventh indication message to indicate lifting the prohibition on sending uplink signals, and accordingly, the terminal device may send uplink signals after receiving the eleventh indication message. It is understood that the eleventh indication message may also include an effective time or time period to indicate a specific time or time period for lifting the prohibition.

[0291] According to the above technical solution, the first network device can indicate whether access is allowed to one or more terminal devices in the first area within the service area. Specifically, the first network device instructs the terminal device that receives the first broadcast signal with the first index to allow access or prohibit access, thereby performing access control on the terminal devices in the service area, thereby preventing all terminal devices in the service area from accessing the first network device, causing storage pressure on the first network device and affecting the system communication quality.

[0292] Figure 7 It is a schematic flow chart of a communication method provided in an embodiment of the present application. For ease of description, method 700 is exemplarily described below by taking the interaction between the execution subject as a first network device and a terminal device as an example. It can be understood that the terminal device can be a component of the terminal device (such as a chip or circuit), or the first network device can also be a component of the network device (such as a chip or circuit), without limitation.

[0293] In the present application, the first network device sends a broadcast signal to the service area, and correspondingly, the terminal device in the service area receives the broadcast signal.

[0294] There is no limitation on the manner in which the first network device sends the broadcast signal to the service area.

[0295] Among them, the broadcast signal can be SSB.

[0296] Among them, the first network device includes the first satellite or an access network device corresponding to the first satellite, which is not limited in this application.

[0297] Figure 7 The illustrated method 700 may include the following steps.

[0298] S710, the terminal device sends a random access request to the first network device.

[0299] After receiving the broadcast signal sent by the first network device, the terminal device initiates random access on the random access resource corresponding to the broadcast signal.

[0300] For example, the terminal device sends message 1 (message1, msg1) to the first network device, where msg1 is used to initiate random access to the first network device.

[0301] S720, the first network device determines fourth indication information according to the random access request of the terminal device, where the fourth indication information is used to indicate whether the terminal device is allowed to access.

[0302] The first network device determines whether the terminal device is allowed to access according to the competition situation of the random access resources initiated by the terminal device, and indicates whether the terminal device is allowed to access in the downlink signal of the random access.

[0303] Exemplarily, the first network device determines whether to allow the terminal device to access according to the preamble in msg1.

[0304] It can be understood that if multiple terminal devices initiate access to the same RO resource, the first network device can send access prohibition signaling to the multiple terminal devices at the same time.

[0305] S730: The first network device sends fourth indication information to the terminal device.

[0306] Correspondingly, the terminal device receives the fourth indication information.

[0307] Among them, the first network device can send the fourth indication information through message 2 (message2, msg2) or message 4 (message4, msg4), or send it independently, which is not limited to the embodiment of the present application.

[0308] S740: The terminal device determines whether to access the first network device according to the fourth indication information.

[0309] The terminal device receives the fourth indication information, and there are two situations of allowing access or prohibiting access according to the fourth indication information.

[0310] Case 1: the fourth indication information indicates that access is allowed.

[0311] When the terminal device is allowed to access the first network device, the terminal device may initiate an access process to the first network device.

[0312] Optionally, after the terminal device accesses the first network device, it can send data on the resources of the first broadcast signal. Correspondingly, the first network device receives the data of the terminal device based on the resources of the first broadcast signal.

[0313] After the first network device collects the data from the terminal device, it moves to an area with a ground station / core network, lands the data through the ground station and sends it to the core network.

[0314] Case 2: the fourth indication information indicates that access is prohibited.

[0315] When the terminal device is prohibited from accessing the first network device, the terminal device does not initiate an access process to the first network device.

[0316] Exemplarily, the terminal device may continue to attempt to initiate random access to the first network device after a period of time.

[0317] Exemplarily, the terminal device may maintain a power-saving state, for example, the terminal device may enter an idle state while acquiring a synchronization signal from a next satellite, and may initiate an access process when a broadcast signal allowing access is received.

[0318] Exemplarily, the terminal device may acquire the synchronization signal of the next satellite based on the ephemeris information or auxiliary information of the next satellite, but this embodiment of the present application is not limited to this.

[0319] In a possible implementation, the first network device may continuously adjust the access control of the terminal device according to the change of the storage space, and correspondingly, the terminal device may initiate access or not initiate access according to the adjustment of the access control of the first network device.

[0320] For example, the fourth indication information indicates that the terminal device is prohibited from access, but when the storage space of the first network device is sufficient, the first network device resends the fourth indication information to indicate that the terminal device can access, and the terminal device initiates random access to the first network device and sends data; for another example, the fourth indication information indicates that the terminal device is allowed to access, but when the storage space of the first network device is insufficient, the first network device can resend the fourth indication information to indicate that the terminal device is prohibited from access.

[0321] It can be understood that when the storage space of the first network device is sufficient, the first network device can allow all terminal devices that initiate random access requests to access, and when the storage space of the first network device is small, the first network device can prohibit most terminal devices that initiate random access requests from accessing.

[0322] In a possible implementation, the first network device sends the second duration to the terminal device.

[0323] The second duration is the length of time during which the terminal device is allowed to access or prohibited to access as indicated by the fourth indication information.

[0324] Specifically, the first network device may configure the effective duration for prohibiting access and / or allowing access to the terminal.

[0325] For example, the first network device configures the terminal device to allow access / prohibit access, and configures the duration and time starting point of the allowed access and the time starting reference point. When the terminal device is configured to allow access, the terminal device initiates access according to the normal process. When the terminal device is configured to prohibit access, the terminal device may initiate access according to the normal process after the effective duration, or may not initiate access.

[0326] It can be understood that when the first duration is the effective duration for allowing the terminal device to access, after the effective duration expires, the first network device can also indicate the duration for prohibiting access, or can continue to indicate the duration for allowing access; similarly, when the first duration is the effective duration for prohibiting the terminal device to access, after the effective duration expires, the first network device can also indicate the duration for allowing access, or can continue to indicate the duration for prohibiting access. This application does not limit this.

[0327] In the present application, the effective duration can be indicated by a timer or by a remaining effective duration, which is not limited in the present application.

[0328] If the first network device indicates the remaining effective duration, then the starting point of the effective duration may not be indicated. This embodiment of the present application does not limit this.

[0329] In a possible implementation, the first network device may also send fifth indication information to the terminal device.

[0330] The fifth indication information is used to instruct the terminal device to initiate random access to the second network device.

[0331] The second network device includes a second satellite and / or an access network device corresponding to the second satellite.

[0332] It can be understood that the first network device can send a fifth indication message to the terminal device. When the terminal device fails to access within the service range of the first network device, or the terminal device is prohibited from accessing the first network device, the terminal device can initiate random access to the second network device according to the fifth indication message.

[0333] The second network device can be understood as a network device that takes over the service provided by the first network device. For example, after satellite #1 flies away, satellite #2 provides services.

[0334] It can also be understood as a service satellite in a multi-satellite collaboration scenario. For example, the satellites serving the current service area are satellite #1, satellite #2, and satellite #3. When satellite #1 indicates that the terminal device is not allowed to access, it can also inform the terminal of the satellite that can be accessed, such as satellite #3. Although the terminal device can receive the message from satellite #2, the terminal device will skip the synchronous downlink signal reception of satellite #2 and wait until satellite #3 is in service before initiating access.

[0335] In a possible implementation, the first network device may also send the first resource information to the terminal device.

[0336] The first resource information is used by the terminal device to initiate random access to the second network device.

[0337] Correspondingly, the terminal device initiates random access to the second network device according to the first resource information and the fifth indication information.

[0338] In this solution, the resource allocation of different satellites can be optimized and the storage overhead between different satellites can be balanced.

[0339] Optionally, the terminal device initiates random access to the second network device according to the first resource information and priority information.

[0340] Specifically, the terminal device accesses the second network device according to its own priority and the priority of the service.

[0341] Exemplarily, a terminal with a high priority or a terminal device with a high service priority can access the second network device according to the first resource information; a terminal device with a low priority or a terminal device with a low service priority cannot access the second network device according to the first resource information.

[0342] In this solution, the communication needs of high-priority terminal devices or high-service priority terminal devices can be ensured, thereby guaranteeing user experience.

[0343] Optionally, the first network device may also send sixth indication information to the terminal device.

[0344] The sixth indication information is used to indicate the ephemeris information and / or service time information of the second network device.

[0345] Correspondingly, the terminal device accesses the second network device according to the ephemeris information and / or the service time information, which can improve the access efficiency.

[0346] In one possible implementation, the terminal device is connected to the first network device, or is connected to the second network device. Further, the first network device or the second network device can prohibit the terminal device from sending uplink signals. For example, the first network device or the second network device can instruct the terminal device to prohibit sending uplink signals due to high storage space pressure. It can be understood that the terminal device can receive downlink signals from the first network device or the second network device.

[0347] Exemplarily, taking the case where a terminal device accesses a first network device, the first network device may send an indication message to the terminal device, where the indication message is used to instruct the terminal device to prohibit sending an uplink signal. Accordingly, the terminal device stops sending an uplink signal after receiving the indication message.

[0348] Optionally, the indication information may include time information, such as an effective time, and accordingly, the terminal device stops sending uplink signals at the corresponding effective time after receiving the indication information. Alternatively, the time information includes a time period, and the terminal device stops sending uplink signals at the corresponding time period after receiving the indication information. It can be understood that after the time period expires, the terminal device can continue to send uplink signals.

[0349] Optionally, the first network device may also send indication information to indicate lifting of the prohibition of sending uplink signals, and accordingly, the terminal device may send uplink signals after receiving the indication information. It is understood that the indication information may also include an effective time or time period to indicate a specific time or time period for lifting the prohibition.

[0350] According to the above technical solution, the first network device can determine whether to prohibit the terminal device from accessing based on the random access request initiated by the terminal device, and indicate it to the corresponding terminal device through downlink signaling. The first network device determines whether to allow access based on the access competition situation, thereby more accurately controlling the access of terminal devices in the service area.

[0351] Figure 8It is a schematic flow chart of a communication method provided in an embodiment of the present application. For ease of description, method 800 is exemplarily described below by taking the interaction between the execution subject as a first network device and a terminal device as an example. It can be understood that the terminal device can be a component of the terminal device (such as a chip or circuit), or the first network device can also be a component of the network device (such as a chip or circuit), without limitation.

[0352] In the present application, the first network device sends a broadcast signal to the service area, and correspondingly, the terminal device in the service area receives the broadcast signal.

[0353] There is no limitation on the manner in which the first network device sends a broadcast signal to the service area, for example, according to the SSB scanning method of the prior art.

[0354] Among them, the broadcast signal can be SSB.

[0355] Among them, the first network device includes the first satellite or an access network device corresponding to the first satellite, which is not limited in this application.

[0356] Figure 8 The illustrated method 800 may include the following steps.

[0357] S810: The first network device determines seventh indication information according to the storage status.

[0358] The seventh indication information includes the storage status level of the first network device.

[0359] The seventh indication information is used to instruct the terminal device to determine whether to initiate random access.

[0360] In the present application, the first network device determines a storage status level according to the status of the storage space, and the storage status level is used to describe the capacity of the storage space. Different storage status levels indicate different capacities of the storage space.

[0361] For example, the storage status levels are divided into 0, 1, and 2, where storage status level 0 means that the storage space is large and all terminals are allowed to access, storage status level 1 means that the storage space is reduced and terminals with loose service delays can temporarily not access, and storage status level 2 means that the storage space is tight and only terminals with more urgent services can access. Of course, there can actually be more storage level notices and corresponding access restrictions. The above is only an exemplary description.

[0362] Among them, the storage status level can also be called the storage space level, or the storage level, or the space level. The terms used to describe the storage capacity can be used as replacements for the storage status level, and the embodiments of the present application are not limited to this.

[0363] S820: The first network device sends the seventh indication information to the terminal device.

[0364] Correspondingly, the terminal device receives the seventh indication information.

[0365] S830: The terminal determines whether to initiate access according to the storage status level indicated by the seventh indication information.

[0366] When the storage state level load indicated by the seventh indication information is small, the terminal device can initiate random access. When the storage state level load indicated by the seventh indication information is large, the terminal device can determine whether to initiate random access according to its own priority information. When the first network device initiates information indicating that the storage state level is fully loaded, the terminal cannot initiate access during the remaining service time. All terminals can enter a power saving state until the next satellite arrives.

[0367] Optionally, when the terminal device initiates a random access request to the first network device, it carries a service type, and the first network device determines whether to allow the terminal access based on the service type.

[0368] After the terminal device accesses the first network device, the terminal device sends data to the first network device. After the first network device collects the data from the terminal device, it moves to an area with a ground station / core network, lands the data through the ground station and sends it to the core network.

[0369] In a possible implementation, the first network device may also continuously adjust the access control of the terminal device according to the change of the storage space. Accordingly, the terminal device may initiate access or not initiate access according to the adjustment of the access control of the first network device.

[0370] For example, the seventh indication information indicates the storage status level 2, but when the storage space of the first network device is sufficient, the first network device re-indicates the storage status level 0, and the terminal device determines that it can access according to the updated storage status level. The terminal device initiates random access to the first network device and sends data; for another example, the seventh indication information indicates the storage status level 0, but when the storage space of the first network device is insufficient, the first network device can re-indicate the storage status level 2, and the terminal device determines not to access according to the updated storage status level.

[0371] In a possible implementation manner, the first network device sends the third duration to the terminal device.

[0372] The third duration is the effective duration of the storage status level indicated by the seventh indication information.

[0373] For example, the first network device configures the storage state level 0, and configures its effective duration, time starting point, and time starting reference point. The terminal device determines to initiate random access to the first network device according to the storage state level 0, and maintains random access within the effective duration. When the first network device configures the storage state level 2, the terminal device determines not to initiate random access within the effective duration according to the storage state level 2. After the effective duration, the terminal device may initiate access according to the normal process, or may not initiate access.

[0374] It can be understood that the first duration is the effective duration of the storage status level, and after the effective duration expires, the first network device may also indicate an updated storage status level. This application does not limit this.

[0375] In the present application, the effective duration can be indicated by a timer or by a remaining effective duration, which is not limited in the present application.

[0376] If the first network device indicates the remaining effective duration, then the starting point of the effective duration may not be indicated. This embodiment of the present application does not limit this.

[0377] In a possible implementation, the first network device may further send eighth indication information to the terminal device.

[0378] The eighth indication information is used to instruct the terminal device to initiate random access to the second network device.

[0379] The second network device includes a second satellite and / or an access network device corresponding to the second satellite.

[0380] It can be understood that the first network device can send an eighth indication information to the terminal device. When the terminal device fails to access within the service range of the first network device, or the terminal device is prohibited from accessing the first network device, the terminal device can initiate random access to the second network device according to the eighth indication information.

[0381] The second network device can be understood as a network device that takes over the service provided by the first network device. For example, after satellite #1 flies away, satellite #2 provides services.

[0382] It can also be understood as a service satellite in a multi-satellite collaboration scenario. For example, the satellites serving the current service area are satellite #1, satellite #2, and satellite #3. When satellite #1 indicates that the terminal device is not allowed to access, it can also inform the terminal of the satellite that can be accessed, such as satellite #3. Although the terminal device can receive the message from satellite #2, the terminal device will skip the synchronous downlink signal reception of satellite #2 and wait until satellite #3 is in service before initiating access.

[0383] In a possible implementation, the first network device may also send the first resource information to the terminal device.

[0384] The first resource information is used by the terminal device to initiate random access to the second network device.

[0385] Correspondingly, the terminal device initiates random access to the second network device according to the first resource information and the fifth indication information.

[0386] In this solution, the resource allocation of different satellites can be optimized and the storage overhead between different satellites can be balanced.

[0387] Optionally, the terminal device initiates random access to the second network device according to the first resource information and priority information.

[0388] Specifically, the terminal device accesses the second network device according to its own priority and the priority of the service.

[0389] Exemplarily, a terminal with a high priority or a terminal device with a high service priority can access the second network device according to the first resource information; a terminal device with a low priority or a terminal device with a low service priority cannot access the second network device according to the first resource information.

[0390] In this solution, the communication needs of high-priority terminal devices or high-service priority terminal devices can be ensured, thereby guaranteeing user experience.

[0391] Optionally, the first network device may also send sixth indication information to the terminal device.

[0392] The sixth indication information is used to indicate the ephemeris information and / or service time information of the second network device.

[0393] Correspondingly, the terminal device accesses the second network device according to the ephemeris information and / or the service time information, which can improve the access efficiency.

[0394] In one possible implementation, the terminal device is connected to the first network device, or is connected to the second network device. Further, the first network device or the second network device can prohibit the terminal device from sending uplink signals. For example, the first network device or the second network device can instruct the terminal device to prohibit sending uplink signals due to high storage space pressure. It can be understood that the terminal device can receive downlink signals from the first network device or the second network device.

[0395] Exemplarily, taking the case where a terminal device accesses a first network device, the first network device may send an indication message to the terminal device, where the indication message is used to instruct the terminal device to prohibit sending an uplink signal. Accordingly, the terminal device stops sending an uplink signal after receiving the indication message.

[0396] Optionally, the indication information may include time information, such as an effective time, and accordingly, the terminal device stops sending uplink signals at the corresponding effective time after receiving the indication information. Alternatively, the time information includes a time period, and the terminal device stops sending uplink signals at the corresponding time period after receiving the indication information. It can be understood that after the time period expires, the terminal device can continue to send uplink signals.

[0397] Optionally, the first network device may also send indication information to indicate lifting of the prohibition of sending uplink signals, and accordingly, the terminal device may send uplink signals after receiving the indication information. It is understood that the indication information may also include an effective time or time period to indicate a specific time or time period for lifting the prohibition.

[0398] According to the above technical solution, the first network device can indicate the storage status level to the terminal device, and the storage status level can be used as auxiliary information for the terminal device to determine whether to access the first network device, that is, the terminal device determines the storage space of the first network device according to the storage status level, and determines whether to access the first network device according to the size of the storage space. Thus, access control can be implemented more accurately from the terminal device side. Furthermore, the terminal can also determine whether to access the first network device based on its own priority or service priority, so as to ensure the smooth execution of high-priority services and ensure user experience.

[0399] It should be understood that other possible implementations of the embodiments of the present application are similar to the above-mentioned methods 600 to 800. Please refer to the descriptions in methods 600 to 800, and they will not be repeated here.

[0400] It should be understood that the sequence numbers of the above processes do not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

[0401] The above mainly introduces the solution provided by the embodiment of the present application from the perspective of the interaction between various network elements. It can be understood that each network element, such as a transmitting end device or a receiving end device, includes a hardware structure and / or software module corresponding to the execution of each function in order to realize the above functions. Those skilled in the art should be aware that, in combination with the units and algorithm steps of each example described in the embodiments disclosed in this document, the present application can be implemented in the form of hardware or a combination of hardware and computer software. Whether a function is executed in the form of hardware or computer software driving hardware depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to exceed the scope of this application.

[0402] The embodiment of the present application can divide the functional modules of the transmitting end device or the receiving end device according to the above method example. For example, each functional module can be divided corresponding to each function, or two or more functions can be integrated into one processing module. The above integrated module can be implemented in the form of hardware or in the form of software functional modules. It should be noted that the division of modules in the embodiment of the present application is schematic and is only a logical functional division. There may be other division methods in actual implementation. The following is an example of dividing each functional module corresponding to each function.

[0403] Above, combined Figures 6 to 8 The method provided by the embodiment of the present application is described in detail. Figures 9 and 10 The device provided in the embodiment of the present application is described in detail. It should be understood that the description of the device embodiment corresponds to the description of the method embodiment, so the contents not described in detail can be referred to the method embodiment above, and for the sake of brevity, they will not be repeated here.

[0404] Fig. 9 It is a structural diagram of a communication device provided in an embodiment of the present application.

[0405] The device 900 includes a transceiver unit 910 and a processing unit 920, wherein the transceiver unit 910 can be used to implement corresponding communication functions, and the processing unit 920 can be used to perform data processing.

[0406] Optionally, the transceiver unit 910 may also be referred to as a communication interface or a communication unit, including a sending unit and / or a receiving unit. The transceiver unit 910 may be a transceiver (including a transmitter and / or a receiver), an input / output interface (including an input and / or output interface), a pin or a circuit, etc. The transceiver unit 910 may be used to perform the steps of sending and / or receiving in the above method embodiment.

[0407] Optionally, the processing unit 920 may be a processor (may include one or more), a processing circuit with a processor function, etc., and may be used to execute other steps except sending and receiving in the above method embodiment.

[0408] Optionally, the device 900 further includes a storage unit, which may be a memory, an internal storage unit (e.g., a register, a cache, etc.), an external storage unit (e.g., a read-only memory, a random access memory, etc.), etc. The storage unit is used to store instructions, and the processing unit 920 executes the instructions stored in the storage unit so that the communication device executes the above method.

[0409] In one design, the apparatus 900 may be used to execute the actions executed by the first network device in each of the above method embodiments, such as the apparatus 900 may be used to execute the actions executed by the first network device in the above method 600. In this case, the apparatus 900 may be a component of the network device, the transceiver unit 910 is used to execute the transceiver-related operations on the first network device side in the above method embodiments, and the processing unit 920 is used to execute the processing-related operations of the first network device in the above method embodiments.

[0410] For example, the processing unit 920 is used to determine the first indication information, where the first indication information is used to indicate whether the terminal device in at least one first area is allowed to access or prohibited to access, each first area in the at least one first area does not overlap with the remaining first areas, and the first area is a partial area in the service area of ​​the first network device; the transceiver unit 910 is used to send the first indication information.

[0411] It should be understood that the transceiver unit 910 and the processing unit 920 may also perform other operations performed by the network device in the above method 600, which will not be described in detail here.

[0412] In one design, the apparatus 900 may be used to execute the actions executed by the terminal device in each of the above method embodiments, such as the apparatus 900 may be used to execute the actions executed by the terminal device in the above method 600. In this case, the apparatus 900 may be a component of the terminal device, the transceiver unit 910 is used to execute the transceiver-related operations on the terminal device side in the above method embodiments, and the processing unit 920 is used to execute the processing-related operations on the terminal device side in the above method embodiments.

[0413] For example, the transceiver unit 910 is used to receive first indication information, wherein the first indication information indicates that a terminal device in at least one first area is allowed to access or is prohibited from accessing, each of the at least one first area does not overlap, and the first area is a partial area in the service area of ​​the first network device; the processing unit 920 is used to initiate access to the first network device according to the first indication information.

[0414] It should be understood that the transceiver unit 910 and the processing unit 920 may also perform other operations performed by the terminal device in the above method 600, which will not be described in detail here.

[0415] In one design, the apparatus 900 may be used to execute the actions executed by the first network device in each of the above method embodiments, such as the apparatus 900 may be used to execute the actions executed by the first network device in the above method 700. In this case, the apparatus 900 may be a component of the network device, the transceiver unit 910 is used to execute the transceiver-related operations on the first network device side in the above method embodiments, and the processing unit 920 is used to execute the processing-related operations of the first network device in the above method embodiments.

[0416] For example, the processing unit 920 is used to determine fourth indication information according to a random access request of a terminal device, wherein the fourth indication information is used to indicate whether the terminal device is allowed to access; and the transceiver unit 910 is used to send the fourth indication information.

[0417] It should be understood that the transceiver unit 910 and the processing unit 920 may also perform other operations performed by the network device in the above method 700, which will not be described in detail here.

[0418] In one design, the apparatus 900 may be used to execute the actions executed by the terminal device in each of the above method embodiments, such as the apparatus 900 may be used to execute the actions executed by the terminal device in the above method 700. In this case, the apparatus 900 may be a component of the terminal device, the transceiver unit 910 is used to execute the transceiver-related operations on the terminal device side in the above method embodiments, and the processing unit 920 is used to execute the processing-related operations on the terminal device side in the above method embodiments.

[0419] For example, the transceiver unit 910 is used to send a random access request; the transceiver unit is also used to receive fourth indication information; the processing unit 920 is used to determine whether to access the first network device according to the fourth indication information.

[0420] It should be understood that the transceiver unit 910 and the processing unit 920 may also perform other operations performed by the terminal device in the above method 700, which will not be described in detail here.

[0421] In one design, the apparatus 900 may be used to execute the actions executed by the first network device in each of the above method embodiments, such as the apparatus 900 may be used to execute the actions executed by the first network device in the above method 800. In this case, the apparatus 900 may be a component of the network device, the transceiver unit 910 is used to execute the transceiver-related operations on the first network device side in the above method embodiments, and the processing unit 920 is used to execute the processing-related operations of the first network device in the above method embodiments.

[0422] For example, the processing unit 920 is used to determine seventh indication information according to the storage status of the first network device, and the seventh indication information includes the storage status level of the first network device; the transceiver unit 910 is used to send the seventh indication information.

[0423] It should be understood that the transceiver unit 910 and the processing unit 920 may also perform other operations performed by the network device in the above method 800, which will not be described in detail here.

[0424] In one design, the apparatus 900 may be used to execute the actions executed by the terminal device in each of the above method embodiments, such as the apparatus 900 may be used to execute the actions executed by the terminal device in the above method 800. In this case, the apparatus 900 may be a component of the terminal device, the transceiver unit 910 is used to execute the transceiver-related operations on the terminal device side in the above method embodiments, and the processing unit 920 is used to execute the processing-related operations on the terminal device side in the above method embodiments.

[0425] For example, the transceiver unit 910 is used to receive seventh indication information, where the seventh indication information includes the storage status level of the first network device; and the processing unit 920 is used to determine whether to initiate random access according to the first indication information.

[0426] It should be understood that the transceiver unit 910 and the processing unit 920 may also perform other operations performed by the terminal device in the above method 800, which will not be described in detail here.

[0427] It should also be understood that the device 900 here is embodied in the form of a functional unit. The term "unit" here may refer to an application specific integrated circuit (ASIC), an electronic circuit, a processor (such as a shared processor, a proprietary processor or a group processor, etc.) and a memory for executing one or more software or firmware programs, a merged logic circuit and / or other suitable components that support the described functions. In an optional example, those skilled in the art can understand that the device 900 can be specifically a network device in the above-mentioned embodiment, and can be used to execute the various processes and / or steps corresponding to the network device in the above-mentioned method embodiments. To avoid repetition, it will not be repeated here.

[0428] The apparatus 900 of each of the above-mentioned schemes has the function of implementing the corresponding steps executed by the device in the above-mentioned method, or the apparatus 900 of each of the above-mentioned schemes has the function of implementing the corresponding steps executed by the network device in the above-mentioned method. The function can be implemented by hardware, or the corresponding software can be implemented by hardware. The hardware or software includes one or more modules corresponding to the above-mentioned functions; for example, the transceiver unit can be replaced by a transceiver (for example, the sending unit in the transceiver unit can be replaced by a transmitter, and the receiving unit in the transceiver unit can be replaced by a receiver), and other units, such as the processing unit, can be replaced by a processor to respectively perform the transceiver operations and related processing operations in each method embodiment.

[0429] In addition, the transceiver unit 910 may also be a transceiver circuit (for example, may include a receiving circuit and a sending circuit), and the processing unit may be a processing circuit.

[0430] It should be pointed out that Fig. 9 The device in the embodiment may be a network element or device in the foregoing embodiment, or may be a chip or a chip system, such as a system on chip (SoC). The transceiver unit may be an input / output circuit or a communication interface; the processing unit may be a processor or a microprocessor or an integrated circuit integrated on the chip. This is not limited here.

[0431] Fig.10 It is a schematic diagram of a communication architecture provided in an embodiment of the present application. Fig.10 The communication device 1000 shown includes: a processor 1010, a memory 1020, and a transceiver 1030. The processor 1010 is coupled to the memory 1020 and is configured to execute instructions stored in the memory 1020 to control the transceiver 1030 to send and / or receive signals.

[0432] It should be understood that the processor 1010 and the memory 1020 can be combined into a processing device, and the processor 1010 is used to execute the program code stored in the memory 1020 to implement the above functions. In specific implementation, the memory 1020 can also be integrated into the processor 1010, or independent of the processor 1010. It should be understood that the processor 1010 can also correspond to each processing unit in the above communication device, and the transceiver 1030 can correspond to each receiving unit and sending unit in the above communication device.

[0433] It should also be understood that the transceiver 1030 may include a receiver (or receiver) and a transmitter (or transmitter). The transceiver may further include an antenna, and the number of antennas may be one or more. The transceiver may also be a communication interface or an interface circuit.

[0434] Specifically, the communication device 1000 may correspond to the terminal device in the method 600 to the method 800 according to the embodiment of the present application. The communication device 1000 may include the unit of the method performed by the network device in the method 600 to the method 800. It should be understood that the specific process of each unit performing the above corresponding steps has been described in detail in the above method embodiment, and for the sake of brevity, it will not be repeated here.

[0435] When the communication device 1000 is a chip, the chip includes an interface unit and a processing unit, wherein the interface unit may be an input / output circuit or a communication interface; and the processing unit may be a processor or a microprocessor or an integrated circuit integrated on the chip.

[0436] In the implementation process, each step of the above method can be completed by an integrated logic circuit of hardware in a processor or an instruction in the form of software. The steps of the method disclosed in conjunction with the embodiment of the present application can be directly embodied as a hardware processor for execution, or a combination of hardware and software modules in a processor for execution. The software module can be located in a storage medium mature in the art such as a random access memory, a flash memory, a read-only memory, a programmable read-only memory or an electrically erasable programmable memory, a register, etc. The storage medium is located in a memory, and the processor reads the information in the memory and completes the steps of the above method in conjunction with its hardware. To avoid repetition, it is not described in detail here.

[0437] It should be noted that the processor in the embodiment of the present application can be an integrated circuit chip with signal processing capabilities. In the implementation process, each step of the above method embodiment can be completed by an integrated logic circuit of hardware in the processor or an instruction in the form of software. The above processor can be a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components. 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 embodiment of the present application can be directly embodied as a hardware decoding processor to perform, or the hardware and software modules in the decoding processor can be combined and performed. The software module can be located in a mature storage medium in the field such as a random access memory, a flash memory, a read-only memory, a programmable read-only memory or an electrically erasable programmable memory, a register, etc. The storage medium is located in a memory, and the processor reads the information in the memory and completes the steps of the above method in combination with its hardware.

[0438] The present application also provides a computer-readable medium on which a computer program is stored. When the computer program is executed by a computer, the functions of any of the above method embodiments are implemented.

[0439] The present application also provides a computer program product, which implements the functions of any of the above method embodiments when executed by a computer.

[0440] In the above embodiments, it can be implemented in whole or in part by software, hardware, firmware or any combination thereof. When implemented using software, it can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer instructions are loaded and executed on a computer, the process or function described in the embodiment of the present application is generated in whole or in part. The computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions may be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions may be transmitted from a website site, computer, server or data center by wired (e.g., coaxial cable, optical fiber, digital subscriber line (digital subscriber line, DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) mode to another website site, computer, server or data center. The computer-readable storage medium may be any available medium that a computer can access or a data storage device such as a server or data center that includes one or more available media integrated. The available medium may be a magnetic medium (eg, a floppy disk, a hard disk, a magnetic tape), an optical medium (eg, a high-density digital video disc (DVD)), or a semiconductor medium (eg, a solid state disk (SSD)).

[0441] In the embodiments of the present application, words such as "exemplary" and "for example" are used to indicate examples, illustrations or descriptions. Any embodiment or design described as "exemplary" in the present application should not be interpreted as being more preferred or more advantageous than other embodiments or designs. Specifically, the use of the word "exemplary" is intended to present concepts in a concrete way.

[0442] It should be understood that the "embodiment" mentioned throughout the specification means that the specific features, structures or characteristics related to the embodiment are included in at least one embodiment of the present application. Therefore, the various embodiments in the entire specification do not necessarily refer to the same embodiment. In addition, these specific features, structures or characteristics can be combined in one or more embodiments in any suitable manner.

[0443] It should be understood that in various embodiments of the present application, the size of the sequence number of each process does not mean the order of execution, and the execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application. The names of all nodes and messages in this application are merely names set by this application for the convenience of description. The names in the actual network may be different. It should not be understood that this application limits the names of various nodes and messages. On the contrary, any name with the same or similar function as the node or message used in this application is regarded as the method or equivalent replacement of this application, and is within the scope of protection of this application.

[0444] It should also be understood that in the present application, "when", "if" and "if" all mean that the UE or base station will take corresponding actions under certain objective circumstances. It is not a time limit, and it does not require the UE or base station to make judgments when implementing it, nor does it mean that there are other limitations.

[0445] In addition, the terms "system" and "network" are often used interchangeably in this article. The term "and / or" in this article is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone.

[0446] The term "at least one of..." or "at least one of..." herein refers to all or any combination of the listed items. For example, "at least one of A, B, and C" may refer to the following six situations: A exists alone, B exists alone, C exists alone, A and B exist at the same time, B and C exist at the same time, and A, B, and C exist at the same time. "At least one" herein refers to one or more. "More than one" refers to two or more.

[0447] It should be understood that in each embodiment of the present application, the terms “including”, “comprising”, “having” and their variations all mean “including but not limited to”, unless otherwise specifically emphasized.

[0448] It should be understood that in various embodiments of the present application, the first, second and various digital numbers are only used for the convenience of description and are not used to limit the scope of the embodiments of the present application. For example, to distinguish different information.

[0449] Those of ordinary skill in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of this application.

[0450] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0451] In the several embodiments provided in the present application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0452] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0453] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0454] If the functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application can be essentially or partly embodied in the form of a software product that contributes to the prior art. The computer software product is stored in a storage medium and includes several instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the methods described in each embodiment of the present application. The aforementioned storage medium includes: various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk.

[0455] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A communication method, characterized in that: Applied to a first network device, comprising: Determine first indication information, where the first indication information is used to indicate whether a terminal device in at least one first area is allowed to access or is prohibited to access, where any two first areas in the at least one first area do not overlap, and the first area is a partial area in a service area of ​​the first network device; Send the first indication information.

2. The method according to claim 1, characterized in that Each first area of ​​the at least one first area is a coverage area of ​​the first broadcast signal indicated by the first index, and the first indication information is used to indicate whether a terminal device that receives the first broadcast signal indicated by the first index is allowed to access or prohibited to access.

3. The method according to claim 2, characterized in that The first indication information is associated with the first index.

4. The method according to any one of claims 1 to 3, characterized in that The method further comprises: The first indication information is determined according to a storage status of the first network device.

5. The method according to any one of claims 1 to 4, characterized in that The method further comprises: A first duration is sent, where the first duration is the length of time during which access is allowed or prohibited for terminal devices in each of the at least one first area.

6. The method according to any one of claims 1 to 5, characterized in that The method further comprises: Send second indication information, where the second indication information is used to instruct the terminal device to initiate random access to the second network device.

7. The method according to claim 6, characterized in that The method further comprises: Sending first resource information to the terminal device, where the first resource information is used by the terminal device to initiate random access to the second network device.

8. The method according to claim 7, characterized in that The first resource information is used by the terminal device to initiate random access to the second network device according to the priority information.

9. The method according to any one of claims 6 to 8, characterized in that: The method further comprises: Send third indication information, where the third indication information is used to indicate the ephemeris information and / or service time information of the second network device.

10. A communication method, characterized in that: Applied to a first network device, comprising: Determine fourth indication information according to the random access request of the terminal device, the fourth indication information being used to indicate whether the terminal device is allowed to access; Send the fourth indication information.

11. The method according to claim 10, characterized in that The method further comprises: Send a second duration, where the second duration is used to indicate the length of time for which the terminal device is allowed to access or prohibited to access.

12. The method according to claim 10 or 11, characterized in that: The method further comprises: Send fifth indication information, where the fifth indication information is used to instruct the terminal device to initiate random access to the second network device.

13. The method according to claim 12, characterized in that The method further comprises: Send first resource information, where the first resource information is used by the terminal device to initiate random access to the second network device.

14. The method according to claim 13, characterized in that The first resource information is used by the terminal device to initiate random access to the second network device according to the priority information.

15. The method according to any one of claims 12 to 14, characterized in that: The method further comprises: Send sixth indication information, where the sixth indication information is used to indicate the ephemeris information and / or service time information of the second network device.

16. A communication method, characterized in that: Applied to a first network device, comprising: Determine seventh indication information according to the storage status of the first network device, wherein the seventh indication information includes a storage status level of the first network device; The seventh indication information is sent.

17. The method according to claim 16, characterized in that The seventh indication information is used by the terminal device to determine whether to initiate random access.

18. The method according to claim 16 or 17, characterized in that The method further comprises: A third duration is sent, where the third duration is the effective duration of the seventh indication information.

19. The method according to any one of claims 16 to 18, characterized in that: The method further comprises: receiving an access request from the terminal device, wherein the access request includes a service type; An access permission message or an access rejection message is sent according to the service type.

20. The method according to any one of claims 16 to 19, characterized in that The method further comprises: Send an eighth indication message, where the eighth indication message is used to instruct the terminal device to initiate random access to the second network device.

21. The method according to any one of claims 16 to 20, characterized in that The method further comprises: Send first resource information, where the first resource information is used by the terminal device to initiate random access to the second network device.

22. The method according to claim 21, characterized in that The first resource information is used by the terminal device to initiate random access to the second network device according to the priority information.

23. The method according to any one of claims 20 to 22, characterized in that The method further comprises: Ninth indication information is sent, where the ninth indication information is used to indicate the ephemeris information and / or service time information of the second network device.

24. A communication method, characterized in that: Applied to terminal equipment, including: Receive first indication information, where the first indication information indicates that a terminal device in at least one first area is allowed to access or is prohibited to access, where each first area in the at least one first area does not overlap, and the first area is a partial area in a service area of ​​a first network device; Determine whether to initiate access to the first network device according to the first indication information.

25. The method according to claim 24, characterized in that Each first area of ​​the at least one first area is a coverage area of ​​the first broadcast signal indicated by the first index, and the first indication information is used to indicate whether a terminal device that receives the first broadcast signal indicated by the first index is allowed to access or prohibited to access.

26. The method according to claim 24 or 25, characterized in that The first indication information is associated with the first index.

27. The method according to any one of claims 24 to 26, characterized in that The method further comprises: A first duration is received, where the first duration is a length of time during which access is allowed or prohibited for a terminal device in each of the at least one first area.

28. The method according to claim 27, characterized in that The method further comprises: receiving second indication information; Determine prohibiting access to the first network device according to the first indication information, or, when the first terminal device fails to access the first network device, initiate random access to the second network device according to the second indication information.

29. The method according to claim 28, characterized in that The method further comprises: receiving first resource information; Initiate random access to the second network device according to the first resource information.

30. The method according to claim 29, characterized in that The method further comprises: Initiate random access to the second network device according to the priority information.

31. The method according to any one of claims 28 to 30, characterized in that The method further comprises: Receive third indication information, where the third indication information is used to indicate ephemeris information and / or service time information of the second network device.

32. A communication method, characterized in that: Applied to terminal equipment, including: Sending a random access request; receiving fourth instruction information; Determine whether to access the first network device according to the fourth indication information.

33. The method according to claim 32, characterized in that The method further includes: receiving a second duration, where the second duration is used to indicate the length of time for which the terminal device is allowed to access or prohibited to access.

34. The method according to claim 32 or 33, characterized in that The method further comprises: receiving fifth indication information; Determine prohibiting access to the first network device according to the fourth indication information, or, when the first terminal device fails to access the first network device, initiate random access to the second network device according to the fifth indication information.

35. The method according to claim 34, characterized in that The method further comprises: receiving first resource information; Initiate random access to the second network device according to the first resource information.

36. The method according to claim 35, characterized in that The method further comprises: Initiate random access to the second network device according to the priority information.

37. The method according to any one of claims 34 to 36, characterized in that The method further comprises: Receive sixth indication information, where the sixth indication information is used to indicate ephemeris information and / or service time information of the second network device.

38. A communication method, characterized in that: Applied to terminal equipment, including: receiving seventh indication information, wherein the seventh indication information includes a storage status level of the first network device; Determine whether to initiate random access according to the first indication information.

39. The method according to claim 38, characterized in that The method further comprises: A third duration is received, where the third duration is a valid duration of the seventh indication information.

40. The method according to claim 38 or 39, characterized in that The method further comprises: An access request is sent, wherein the access request includes a service type; and an access permission message or an access rejection message is received.

41. The method according to any one of claims 38 to 40, characterized in that The method further comprises: receiving eighth instruction information; Determine prohibiting access to the first network device according to the seventh indication information, or, when the first terminal device fails to access the first network device, initiate random access to the second network device according to the eighth indication information.

42. The method according to claim 41, characterized in that The method further comprises: receiving first resource information; Initiate random access to the second network device according to the first resource information.

43. The method according to claim 42, characterized in that The method further comprises: Initiate random access to the second network device according to the priority information.

44. The method according to any one of claims 41 to 43, characterized in that The method further comprises: Receive ninth indication information, where the ninth indication information is used to indicate ephemeris information and / or service time information of the second network device.

45. A communication device, characterized in that: Comprising a unit for performing the method of any one of claims 1 to 9, or 10 to 15, or 16 to 23, or 24 to 31, or 32 to 37, or 38 to 44.

46. ​​A communication device, characterized in that: The method comprises a processor coupled to a memory, the memory being used to store a computer program or instructions, the processor being used to execute the computer program or instructions in the memory, so that the apparatus performs the method according to any one of claims 1 to 9, or performs the method according to any one of claims 10 to 15, or performs the method according to any one of claims 16 to 23, or performs the method according to any one of claims 24 to 31, or performs the method according to any one of claims 32 to 37, or performs the method according to any one of claims 38 to 44.

47. A computer-readable storage medium, characterized in that The computer-readable storage medium stores a computer program or instructions, which, when executed on a computer, causes the computer to execute the method as claimed in any one of claims 1 to 9, or the method as claimed in any one of claims 10 to 15, or the method as claimed in any one of claims 16 to 23, or the method as claimed in any one of claims 24 to 31, or the method as claimed in any one of claims 32 to 37, or the method as claimed in any one of claims 38 to 44.

48. A chip system, characterized in that: include: A processor, used to call and run a computer program from a memory so that a communication device equipped with the chip system executes the method described in any one of claims 1 to 9, or executes the method described in any one of claims 10 to 15, or executes the method described in any one of claims 16 to 23, or executes the method described in any one of claims 24 to 31, or executes the method described in any one of claims 32 to 37, or executes the method described in any one of claims 38 to 44.

49. A computer program product, characterized in that When the computer program product runs on a computer, the computer executes the steps of the method as claimed in any one of claims 1 to 9, or executes the steps of the method as claimed in any one of claims 10 to 15, or executes the steps of the method as claimed in any one of claims 16 to 23, or executes the steps of the method as claimed in any one of claims 24 to 31, or executes the steps of the method as claimed in any one of claims 32 to 37, or executes the steps of the method as claimed in any one of claims 38 to 44.

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