Communication method, communication device and system

Abstract

The invention discloses a communication method, device and system, and relates to the technical field of communication. In the method, an access network device sends first information to a terminal device, the first information is used for configuring a first parameter, and the terminal device performs network access in a first network slice access layer packet according to the first parameter and records information related to the first network slice access layer packet, according to the embodiment of the invention, the first network slice access layer packet is divided into the first network slice access layer packet and the information related to the first network slice access layer packet is sent to the access network equipment, and the access network equipment can adjust the parameter configuration of the first network slice access layer packet granularity according to the information, so that the parameter configuration of the network slice access layer packet granularity can be adjusted.

Description

Technical Field

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

[0002] Network slice (NS) is the fifth generation th A key technology for 5G communications, developed under the 3rd Generation Partnership Project (3 rd It has been widely recognized and studied in the 3rd Generation Partnership Project (3GPP) and other international standardization organizations, and can meet the customized needs of operators for various industries, vertical markets and various virtual operation services.

[0003] The access stratum (AS) of the network usually configures some access parameters for each group consisting of several network slices (or network slice access-stratum group (NSAG)), and the terminal device accesses according to the above parameters, for example, cell reselection or random access channel (RACH). However, how to adjust the parameters of the granularity of the network slice access stratum group is a technical problem that needs to be solved urgently. Summary of the invention

[0004] The present application provides a communication method, a communication device and a system that can support parameter configuration for adjusting the packet granularity of the network slice access layer.

[0005] In a first aspect, a communication method is provided, comprising: receiving first information for configuring a first parameter, the first parameter corresponding to a first network slice access layer group; and sending second information for indicating information related to the first network slice access layer group when a terminal device performs network access according to the first parameter.

[0006] The execution subject of the solution described in the first aspect may be a terminal device, or a module of the terminal device (such as a chip system, etc.), or a logical node, logic module or software that can realize all or part of the functions of the terminal device, without limitation. For ease of description, the following description takes the terminal device as an example.

[0007] In the above scheme, the terminal device can initiate network access in the first network slice access layer group according to the first parameter configured by the first information, and can record information related to the first network slice access layer group, for example, the identification information of the network slice access layer group selected by the terminal device or the priority information of the network slice access layer group related to the network slice access layer group selected by the terminal device.

[0008] Furthermore, the terminal device reports information related to the first network slice access layer grouping to the access network device, and the access network device can adjust the parameter configuration of the network slice access layer grouping granularity based on this information.

[0009] In certain implementations of the first aspect, the method further includes: receiving request information for requesting the terminal device to send second information.

[0010] In this way, the terminal device can send the second information to the access network device according to the request of the access network device.

[0011] In some implementations of the first aspect, sending the second information includes: sending the second information to a centralized unit of the access network device.

[0012] In this way, the access network equipment can adopt a separate architecture to receive and process information, which is conducive to the deployment of the access network equipment, such as cloud deployment.

[0013] In a second aspect, a communication method is provided, which is applied to an access network device, including: sending first information, which is used to configure a first parameter, the first parameter corresponds to a first network slice access layer grouping; receiving second information, which is used to indicate information related to the first network slice access layer grouping when the terminal device accesses the first network according to the first parameter.

[0014] The execution subject of the solution described in the second aspect may be an access network device, or a module of the access network device (such as a chip system, etc.), or a logical node, logical module or software that can realize all or part of the functions of the access network device, without limitation. For ease of description, the following description takes the access network device as an example.

[0015] In the above scheme, the access network device can adjust the parameter configuration of the network slice access layer grouping granularity according to the information related to the first network slice access layer grouping indicated in the second information sent by the terminal device. For example, the access network device can adjust the cell reselection parameters of the first network slice access layer grouping or adjust the random access configuration parameters of the first network slice access layer grouping according to the information related to the first network slice access layer grouping.

[0016] In certain implementations of the second aspect, the method further includes: sending request information for requesting the terminal device to send second information.

[0017] In this way, the terminal device can send the second information to the access network device according to the request of the access network device.

[0018] In certain implementations of the second aspect, the method also includes: sending third information, the third information is determined based on the second information, the third information is used to configure second parameters, the second parameters are used for second network access, the second parameters correspond to the first network slice access layer grouping, and the second parameters are different from the first parameters.

[0019] In this way, the access network device can send a new parameter configuration obtained by adjusting the parameter configuration of the access layer packet granularity of the first network slice to other terminal devices, so that other terminal devices can perform network access, etc. according to the adjusted parameter configuration.

[0020] In some implementations of the second aspect, the access network device includes a distributed unit and a centralized unit, and the receiving the second information includes: the centralized unit receives the second information; and the centralized unit sends the second information to the distributed unit.

[0021] In this way, the access network equipment can adopt a separate architecture to receive and process information, which is conducive to the deployment of the access network equipment, such as cloud deployment.

[0022] In certain implementations of the second aspect, the network access is random access, and the second information sent by the centralized unit to the distributed unit also includes at least one of the following: an average number of transmission times of the preamble code corresponding to the signal on which the random access is based, a maximum number of transmission times of the preamble code corresponding to the signal on which the random access is based, a predicted value of the average number of transmission times of the preamble code corresponding to the signal on which the random access is based, or a predicted value of the maximum number of transmission times of the preamble code corresponding to the signal on which the random access is based.

[0023] In this way, the access network device can make more detailed adjustments to the random access parameter configuration of the access layer grouping granularity of the first network slice based on one or more of these information.

[0024] In combination with the solution described in any one of the first aspect and the second aspect, the above-mentioned network access is at least one of cell reselection or random access.

[0025] When the above-mentioned network access is cell reselection, the embodiment of the present application can support adjustment of parameter configuration related to cell reselection at the grouping granularity of the network slice access layer; when the above-mentioned network access is random access, the embodiment of the present application can support adjustment of parameter configuration related to random access at the grouping granularity of the network slice access layer.

[0026] In combination with the solution described in any one of the first aspect and the second aspect, the above-mentioned network access is random access, and the second information includes identification information of the first network slice access layer grouping.

[0027] In this way, the access network device can determine that the network slice access layer group selected by the terminal device is the first network slice access layer group.

[0028] In combination with the scheme described in any one of the first aspect and the second aspect, the second information also includes at least one of the following: a cell identifier, an index of a signal on which the random access is based, or the number of preamble codes corresponding to the signal on which the random access is based, and the signal on which the random access is based is associated with a first network slice access layer group.

[0029] In this way, the access network device can obtain relevant information when the terminal device performs random access to the first network slice access layer group.

[0030] In combination with the scheme described in any one of the first aspect and the second aspect, the network access is a cell reselection, and the second information includes at least one of the following: identification information of a first network slice access layer group, or identification information of a second network slice access layer group, the first network slice access layer group is a network slice access layer group selected by the terminal device, and the second network slice access layer group satisfies at least one of the following: the priority of the second network slice access layer group is higher than the priority of the first network slice access layer group, or the priority of the second network slice access layer group is equal to the priority of the first network slice access layer group.

[0031] In this way, the access network device can adjust the parameter configuration related to cell reselection at the network slice access layer group granularity based on the above information, for example, adjust the reselection priority information of some network slice access layer groups, thereby influencing the terminal device to avoid selecting a high-load carrier for access when performing cell reselection.

[0032] In combination with the solution described in any one of the first aspect and the second aspect, the second network slice access layer group also satisfies: the second network slice access layer group is the network slice access layer group with the highest priority among one or more network slice access layer groups maintained by the terminal device.

[0033] In this way, the access network device can obtain the identification information of the network slice access layer group with the highest priority among one or more network slice access layer groups maintained by the terminal device.

[0034] In combination with the solution described in any one of the first aspect and the second aspect, the second information is carried in radio resource control signaling.

[0035] For example, the second information may be carried in a UE Information Response message. In this way, the information related to the first network slice access layer grouping may be reported to the access network device using the existing information.

[0036] In the solution described in any one of the first aspect and the second aspect, the second information is sent after the terminal device enters the connected state. In this way, the terminal device can avoid frequently entering the connected state to report the second information, thereby reducing terminal energy consumption.

[0037] According to a third aspect, a communication system is provided, comprising: a distributed unit and a centralized unit: the centralized unit is used to send first information, which is used to configure a first parameter, the first parameter corresponds to a first network slice access layer group; the centralized unit is also used to receive second information, which is used to indicate information related to the first network slice access layer group when the terminal device accesses the network according to the first parameter, and is also used to send the second information to the distributed unit; the distributed unit is used to receive the second information.

[0038] The above-mentioned communication system can be understood as a communication device or a communication apparatus. For example, the communication system can be understood as an access network device. The distributed unit and the centralized unit can be components of the access network device, and information can be exchanged between the distributed unit and the centralized unit.

[0039] It should be noted that the centralized unit may be responsible for functions such as receiving and sending information. The centralized unit communicates with the terminal device, for example, the centralized unit sends first information to the terminal device, and the centralized unit receives second information from the terminal device. The distributed unit may be responsible for functions such as information processing, for example, the distributed unit is used to adjust the parameter configuration of the network slice access layer grouping granularity according to the second information.

[0040] In one possible implementation, the distributed unit can be understood as a distributed device or a distributed apparatus, which can be used to implement the same or similar functions as the distributed unit. The centralized unit can be understood as a centralized device or a centralized apparatus, etc., which can be used to implement the same or similar functions as the centralized unit.

[0041] In certain implementations of the third aspect, the network access is at least one of cell reselection or random access.

[0042] In certain implementations of the third aspect, the network access is random access, and the second information includes identification information of the first network slice access layer group.

[0043] In certain implementations of the third aspect, the network access is a cell reselection, and the second information includes at least one of the following: identification information of a first network slice access layer grouping, or identification information of a second network slice access layer grouping, the first network slice access layer grouping is a network slice access layer grouping selected by the terminal device, and the second network slice access layer grouping satisfies at least one of the following: a priority of the second network slice access layer grouping is higher than a priority of the first network slice access layer grouping, or a priority of the second network slice access layer grouping is equal to a priority of the first network slice access layer grouping.

[0044] In certain implementations of the third aspect, the distributed unit is used to determine third information based on the second information, which is used to configure a second parameter, the second parameter is used to perform the network access, the second parameter corresponds to a first network slice access layer grouping, the second parameter is different from the first parameter, and is also used to send the third information to the centralized unit; the centralized unit is used to receive the third information, and is also used to send the third information.

[0045] In certain implementations of the third aspect, the second information also includes at least one of the following: a cell identifier, an index of a signal on which the random access is based, or the number of preamble codes corresponding to the signal on which the random access is based, and the signal on which the random access is based is associated with a first network slice access layer group.

[0046] In certain implementations of the third aspect, the network access is the cell reselection, and the second information includes at least one of the following: identification information of the first network slice access layer grouping, or identification information of the second network slice access layer grouping, the first network slice access layer grouping is the network slice access layer grouping selected by the terminal device, and the second network slice access layer grouping satisfies at least one of the following: the priority of the second network slice access layer grouping is higher than the priority of the first network slice access layer grouping, or the priority of the second network slice access layer grouping is the same as the priority of the first network slice access layer grouping.

[0047] In certain implementations of the third aspect, the second network slice access layer group also satisfies: the second network slice access layer group is the network slice access layer group with the highest priority among one or more network slice access layer groups maintained by the terminal device.

[0048] In certain implementations of the third aspect, the centralized unit is further used to send request information, which is used to request the terminal device to send the second information.

[0049] In certain implementations of the third aspect, the network access is random access, and the second information sent by the centralized unit to the distributed unit also includes at least one of the following: an average number of transmission times of the preamble code corresponding to the signal on which the random access is based, a maximum number of transmission times of the preamble code corresponding to the signal on which the random access is based, a predicted value of the average number of transmission times of the preamble code corresponding to the signal on which the random access is based, or a predicted value of the maximum number of transmission times of the preamble code corresponding to the signal on which the random access is based.

[0050] In certain implementations of the third aspect, the second information is carried in radio resource control signaling.

[0051] In certain implementations of the third aspect, the second information is sent when the terminal device is in a connected state.

[0052] In a fourth aspect, a communication device is provided, which may be a terminal device, or a device or module for executing the functions of a terminal device.

[0053] In one possible implementation, the communication device may include a module or unit corresponding to each of the methods / operations / steps / actions described in the first aspect. The module or unit may be a hardware circuit, software, or a combination of a hardware circuit and software.

[0054] In a fifth aspect, a communication device is provided, which may be an access network device, or may be a device or module for executing the functions of the access network device.

[0055] In one possible implementation, the communication device may include a module or unit corresponding to each of the methods / operations / steps / actions described in the second aspect. The module or unit may be a hardware circuit, software, or a combination of a hardware circuit and software.

[0056] In a sixth aspect, a communication device is provided, which includes: a transceiver unit, used to send first information, which is used to configure a first parameter, the first parameter corresponds to a first network slice access layer group; the transceiver unit is also used to receive second information, which is used to indicate information related to the first network slice access layer group when the terminal device accesses the network according to the first parameter, and is also used to send the second information to the distributed unit; the transceiver unit is also used to send the second information.

[0057] The above-mentioned communication device can be used as a component of the access network device. For example, the above-mentioned communication device can be a centralized unit in the access network device, and the communication device can interact with the terminal device and the distributed unit in the access network device. For example, the communication device is used to receive the second information from the terminal device, and send the second information to the distributed unit, etc.

[0058] In certain implementations of the sixth aspect, the network access is at least one of cell reselection or random access.

[0059] In certain implementations of the sixth aspect, the network access is random access, and the second information includes identification information of the first network slice access layer group.

[0060] In certain implementations of the sixth aspect, the network access is a cell reselection, and the second information includes at least one of the following: identification information of a first network slice access layer grouping, or identification information of a second network slice access layer grouping, the first network slice access layer grouping is a network slice access layer grouping selected by the terminal device, and the second network slice access layer grouping satisfies at least one of the following: a priority of the second network slice access layer grouping is higher than a priority of the first network slice access layer grouping, or a priority of the second network slice access layer grouping is equal to a priority of the first network slice access layer grouping.

[0061] In certain implementations of the sixth aspect, the second information also includes at least one of the following: a cell identifier, an index of a signal on which the random access is based, or the number of preamble codes corresponding to the signal on which the random access is based, and the signal on which the random access is based is associated with a first network slice access layer group.

[0062] In certain implementations of the sixth aspect, the network access is the cell reselection, and the second information includes at least one of the following: identification information of the first network slice access layer grouping, or identification information of the second network slice access layer grouping, the first network slice access layer grouping is a network slice access layer grouping selected by the terminal device, and the second network slice access layer grouping satisfies at least one of the following: the priority of the second network slice access layer grouping is higher than the priority of the first network slice access layer grouping, or the priority of the second network slice access layer grouping is the same as the priority of the first network slice access layer grouping.

[0063] In certain implementations of the sixth aspect, the second network slice access layer group also satisfies: the second network slice access layer group is the network slice access layer group with the highest priority among the one or more network slice access layer groups maintained by the terminal device.

[0064] In certain implementations of the sixth aspect, the transceiver unit is further used to send request information, which is used to request the terminal device to send second information.

[0065] In certain implementations of the sixth aspect, the network access is random access, and the second information sent by the transceiver unit also includes at least one of the following: an average number of transmission times of the preamble code corresponding to the signal on which the random access is based, a maximum number of transmission times of the preamble code corresponding to the signal on which the random access is based, a predicted value of the average number of transmission times of the preamble code corresponding to the signal on which the random access is based, or a predicted value of the maximum number of transmission times of the preamble code corresponding to the signal on which the random access is based.

[0066] In certain implementations of the sixth aspect, the second information is carried in radio resource control signaling.

[0067] In certain implementations of the sixth aspect, the second information is sent when the terminal device is in a connected state.

[0068] In the seventh aspect, a communication device is provided, which includes: a transceiver unit, used to send first information, which is used to configure a first parameter, the first parameter corresponds to a first network slice access layer group; the transceiver unit is also used to receive second information, which is used to indicate information related to the first network slice access layer group when the terminal device accesses the network according to the first parameter, and is also used to send the second information to the distributed unit.

[0069] The above communication device can be a component of the access network device, for example, a distributed unit in the access network device, and the communication device interacts with a centralized unit in the access network device, for example, sending first information to the centralized unit and receiving second information from the centralized unit.

[0070] In certain implementations of the seventh aspect, the network access is at least one of cell reselection or random access.

[0071] In certain implementations of the seventh aspect, the network access is random access, and the second information includes identification information of the first network slice access layer group.

[0072] In certain implementations of the seventh aspect, the network access is a cell reselection, and the second information includes at least one of the following: identification information of a first network slice access layer grouping, or identification information of a second network slice access layer grouping, the first network slice access layer grouping is a network slice access layer grouping selected by the terminal device, and the second network slice access layer grouping satisfies at least one of the following: the priority of the second network slice access layer grouping is higher than the priority of the first network slice access layer grouping, or the priority of the second network slice access layer grouping is equal to the priority of the first network slice access layer grouping.

[0073] In certain implementations of the seventh aspect, the second information also includes at least one of the following: a cell identifier, an index of a signal on which the random access is based, or the number of preamble codes corresponding to the signal on which the random access is based, and the signal on which the random access is based is associated with a first network slice access layer group.

[0074] In certain implementations of the seventh aspect, the network access is the cell reselection, and the second information includes at least one of the following: identification information of the first network slice access layer grouping, or identification information of the second network slice access layer grouping, the first network slice access layer grouping is the network slice access layer grouping selected by the terminal device, and the second network slice access layer grouping satisfies at least one of the following: the priority of the second network slice access layer grouping is higher than the priority of the first network slice access layer grouping, or the priority of the second network slice access layer grouping is the same as the priority of the first network slice access layer grouping.

[0075] In certain implementations of the seventh aspect, the second network slice access layer group also satisfies: the second network slice access layer group is the network slice access layer group with the highest priority among one or more network slice access layer groups maintained by the terminal device.

[0076] In certain implementations of the seventh aspect, the transceiver unit is further used to send request information, which is used to request the terminal device to send second information.

[0077] In certain implementations of the seventh aspect, the network access is random access, and the second information sent by the transceiver unit also includes at least one of the following: an average number of transmission times of the preamble code corresponding to the signal on which the random access is based, a maximum number of transmission times of the preamble code corresponding to the signal on which the random access is based, a predicted value of the average number of transmission times of the preamble code corresponding to the signal on which the random access is based, or a predicted value of the maximum number of transmission times of the preamble code corresponding to the signal on which the random access is based.

[0078] In certain implementations of the seventh aspect, the second information is carried in radio resource control signaling.

[0079] In certain implementations of the seventh aspect, the second information is sent when the terminal device is in a connected state.

[0080] In certain implementations of the seventh aspect, the communication device also includes a processing unit, which is used to determine third information based on the second information, and is used to configure a second parameter, the second parameter is used for accessing the network, the second parameter corresponds to a first network slice access layer grouping, and the second parameter is different from the first parameter; the transceiver unit is also used to send the third information.

[0081] In an eighth aspect, a communication device is provided, comprising a processor, wherein the processor is used to enable the communication device to execute the method described in the first aspect and any possible manner of the first aspect by executing a computer program or instruction, or by a logic circuit; or to enable the communication device to execute the method described in the second aspect and any possible manner of the second aspect.

[0082] In a possible implementation manner, the communication device further includes a memory for storing the computer program or instruction.

[0083] In a possible implementation manner, the communication device further includes a communication interface, which is used to input and / or output signals.

[0084] In the ninth aspect, a communication device is provided, comprising a logic circuit and an input / output interface, the input / output interface being used to input and / or output signals, the logic circuit being used to execute the method described in the first aspect and any possible manner of the first aspect; or the logic circuit being used to execute the method described in the second aspect and any possible manner of the second aspect.

[0085] In the tenth aspect, a computer-readable storage medium is provided, on which a computer program or instruction is stored. When the computer program or the instruction is run on a computer, the method described in the first aspect and any possible manner of the first aspect is executed; or, the method described in the second aspect and any possible manner of the second aspect is executed.

[0086] In the eleventh aspect, a computer program product is provided, comprising instructions, which, when executed on a computer, cause the method described in the first aspect and any possible manner of the first aspect to be executed; or, cause the method described in the second aspect and any possible manner of the second aspect to be executed.

[0087] In the twelfth aspect, a communication system is also provided, including a terminal device and an access network device, wherein the terminal device is used to execute the method described in the first aspect and any possible mode of the first aspect, and the access network device is used to execute the method described in the second aspect and any possible mode of the second aspect.

[0088] The description of the advantageous effects of any of the third aspect to the twelfth aspect etc. may refer to the description of the advantageous effects of the first aspect and the second aspect. BRIEF DESCRIPTION OF THE DRAWINGS

[0089] Figure 1 is a schematic diagram of a communication system 100 applicable to an embodiment of the present application.

[0090] Figure 2is a schematic diagram of a network architecture 200 applicable to an embodiment of the present application;

[0091] Figure 3 is a schematic diagram of a network architecture 300 applicable to an embodiment of the present application;

[0092] Figure 4 is a schematic diagram of a protocol stack 400 provided in an embodiment of the present application;

[0093] Figure 5 It is a schematic diagram of the interaction flow of the communication method 500 according to an embodiment of the present application.

[0094] Figure 6 It is a schematic diagram of the interaction flow of the communication method 600 according to an embodiment of the present application.

[0095] Figure 7 It is a schematic diagram of the interaction flow of the communication method 700 according to an embodiment of the present application.

[0096] Figure 8 It is a schematic diagram of the interaction flow of the communication method 800 according to an embodiment of the present application.

[0097] Fig. 9 It is a schematic diagram of the interaction flow of the communication method 900 according to an embodiment of the present application.

[0098] Fig.10 It is a schematic block diagram of a communication device 1000 according to an embodiment of the present application.

[0099] Fig.11 It is a schematic block diagram of a communication device 1100 according to an embodiment of the present application. DETAILED DESCRIPTION

[0100] The technical solution in this application will be described below in conjunction with the accompanying drawings.

[0101] In order to facilitate understanding of the embodiments of the present application, the following points are first explained.

[0102] 1. Unless otherwise specified, “at least two” means two or more.

[0103] 2. Unless otherwise specified or there is no logical conflict, the terms and / or descriptions between different embodiments of the present application are consistent and can be referenced to each other. The technical features in different embodiments can be combined to form new embodiments based on their internal logical relationships.

[0104] 3. The various digital numbers involved in this application are only used for the convenience of description and are not used to limit the scope of protection of this application. The size of the serial numbers involved in this application does not mean the order of execution. The execution order of each process should be determined by its function and internal logic. For example, the terms "first", "second", "third", "fourth" and other various terminology labels (if any) in the specification and claims and drawings of this application are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. Among them, the data used in this way can be interchangeable where appropriate, so that the embodiments described here can be implemented in an order other than what is illustrated or described here.

[0105] At the same time, any embodiment or design described in the present application as "exemplary" or "for example" should not be interpreted as being more preferred or more advantageous than other embodiments or designs. Specifically, the use of words such as "exemplary" or "for example" is intended to present related concepts in a concrete manner for ease of understanding.

[0106] 4. The terms "comprise", "include", "have" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product or apparatus comprising a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such process, method, product or apparatus.

[0107] 5. In this application, "used to indicate" can be understood as "enable", and "enable" can include direct enablement and indirect enablement. When describing that a certain information is used to enable A, it can include that the information directly enables A or indirectly enables A, and it does not mean that the information must carry A.

[0108] The information enabled by the information is called information to be enabled. In the specific implementation process, there are many ways to enable the information to be enabled, such as but not limited to, the information to be enabled can be directly enabled, such as the information to be enabled itself or the index of the information to be enabled. The information to be enabled can also be indirectly enabled by enabling other information, wherein there is an association relationship between the other information and the information to be enabled. It is also possible to enable only a part of the information to be enabled, while the other parts of the information to be enabled are known or agreed in advance. For example, the enabling of specific information can also be achieved by means of the arrangement order of each piece of information agreed in advance (such as specified by the protocol), thereby reducing the enabling overhead to a certain extent. At the same time, the common parts of each piece of information can also be identified and enabled uniformly to reduce the enabling overhead caused by enabling the same information separately.

[0109] 6. In this application, "pre-configuration" may include pre-definition, such as protocol definition. Among them, "pre-definition" can be implemented by pre-saving corresponding codes, tables or other methods that can be used to indicate relevant information in a device (for example, including each network element), and this application does not limit its specific implementation method.

[0110] 7. The term "storage" or "saving" as used in this application may refer to saving in one or more memories. The one or more memories may be provided separately or integrated in an encoder or decoder, a processor, or a communication device. The one or more memories may also be partially provided separately and partially integrated in a decoder, a processor, or a communication device. The type of memory may be any form of storage medium, without limitation.

[0111] 8. The "protocol" referred to in this application may refer to a standard protocol in the field of communications, for example, the fourth generation (4 th generation, 4G) network, fifth generation (5 th generation, 5G) network protocol, NR protocol, 5.5G network protocol, sixth generation (6 th The present application does not limit the network protocols used in future communication systems.

[0112] 9. The dotted arrows or boxes in the schematic diagrams of the drawings in the specification of this application represent optional steps or optional modules.

[0113] 10. Unless otherwise specified, “ / ” indicates that the objects associated with each other are in an “or” relationship. For example, A / B can represent A or B. The “and / or” in this application is only a description of the association relationship between the associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone, where A and B can be singular or plural.

[0114] First, a communication system to which the embodiments of the present application are applicable is described.

[0115] Figure 1 1 is a schematic diagram of a communication system 100 to which the present application embodiment is applicable. Figure 1 As shown, the communication system 100 includes: access network equipment and terminal equipment.

[0116] Optionally, the communication system 100 may also include a core network (CN) device ( Figure 1Not shown), for example, access and mobility management function (AMF) network element, etc.

[0117] The communication system 100 may also include a greater number of terminal devices, which is not limited thereto.

[0118] In an embodiment of the present application, a terminal device is a device with wireless transceiver functions, which may refer to user equipment (UE), access terminal, subscriber unit, user station, mobile station, remote station, remote terminal, mobile device, user terminal, wireless communication equipment, user agent or user device.

[0119] In the embodiment of the present application, the terminal device can also be a satellite phone, a cellular phone, a smart phone, a wireless data card, a wireless modem, a machine type communication device, a cordless phone, a session initiation protocol (SIP) phone, a wireless local loop (WLL) station, a personal digital assistant (PDA), a customer terminal equipment (CPE), a smart point of sale (POS) machine, a handheld device with wireless communication function, a computing device or other processing device connected to a wireless modem, a vehicle-mounted device, a communication device carried on a high-altitude aircraft, a wearable device, a drone, a robot, a terminal in device-to-device communication (D2D), a terminal in vehicle-to-everything (V2X), a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal in industrial control, a wireless terminal in self-driving, a remote medical device, a wireless terminal in industrial control, a wireless terminal in self-driving, a wireless terminal in remote medical care, a wireless terminal in industrial control ... There is no restriction on wireless terminals in medical, wireless terminals in smart grid, wireless terminals in transportation safety, wireless terminals in smart city, wireless terminals in smart home, or terminal devices in communication networks evolved after 5G.

[0120] In addition, the terminal device in the embodiment of the present application can also be a device with communication functions in a 6G communication system, without limiting the form or type of the terminal device in 6G and other future communication systems.

[0121] In the embodiment of the present application, the communication device for realizing the function of the terminal device may be the terminal device, or may be a device capable of supporting the terminal device to realize the function, such as a chip system. The device may be installed in the terminal device or used in combination with the terminal device. In the present application, the chip system may be composed of a chip, or may include a chip and other discrete devices.

[0122] In the embodiment of the present application, the access network device is a device with wireless transceiver function, which is used to communicate with the terminal device. The access network device can be a node in the radio access network (RAN), which can also be called a base station, or a RAN node. It can be an evolved Node B (eNB or eNodeB) of LTE; or a base station of a 5G network such as gNodeB (gNB) or a base station in a public land mobile network (PLMN) evolved after 5G, a broadband network service gateway (BNG), an aggregation switch or the 3rd Generation Partnership Project (the 3 rd generation partnership project, 3GPP) access equipment, etc.

[0123] The above-mentioned RAN can be configured as a RAN defined by the 3GPP protocol, an open radio access network (O-RAN) or a cloud radio access network (C-RAN), etc. The access network equipment can also include various forms of base stations, such as: macro base stations, micro base stations (also called small stations), relay stations, transmission points (transmitting and receiving points, TRP), transmission points (transmitting points, TP), mobile switching centers, and devices that assume the function of base stations in device-to-device (D2D), vehicle-to-everything (V2X), machine-to-machine (M2M) communications, network equipment in non-terrestrial networks (NTN), etc., without specific limitation.

[0124] In an embodiment of the present application, the access network device may also include a network element or module that implements some functions of the base station, for example, including one or more of the following: a centralized unit (CU), a distributed unit (DU), or a radio unit (RU). Optionally, the CU can be further separated into a CU-control plane (CP) and a CU-user plane (UP). The functions of the CU and DU can be implemented by different network elements, or simultaneously by the baseband unit (BBU) of the base station. The function of the RU can be implemented by the radio frequency equipment of the base station. For example, the radio frequency equipment of the base station may be a radio frequency remote processing unit (RRU), a pico remote radio unit (pRRU), an active antenna unit (AAU), or other units, modules or devices with radio frequency processing functions. The communication interface protocol between the BBU and the radio frequency equipment can be a common public radio interface (CPRI) interface protocol, an enhanced common public radio interface (eCPRI) interface protocol, or a fronthaul interface protocol between the DU and the RU in the O-RAN system, etc., without limitation.

[0125] In addition, the access network device in the embodiment of the present application can also be a device with communication functions in a 6G communication system, without limiting the form or type of the access network device in 6G and other future communication systems.

[0126] In the embodiment of the present application, the communication device for realizing the function of the access network device may be the access network device, or may be a device capable of supporting the access network device to realize the function, such as a chip system. The device may be installed in the access network device or used in combination with the access network device. The chip system in the embodiment of the present application may be composed of a chip, or may include a chip and other discrete devices.

[0127] In different communication systems, CU (or CU-CP and CU-UP), DU or RU may also have different names, but those skilled in the art can understand their meanings. For example, in the ORAN system, CU may also be called O-CU (open CU), DU may also be called O-DU, CU-CP may also be called O-CU-CP, CU-UP may also be called O-CU-UP, and RU may also be called O-RU. For the convenience of description, CU, CU-CP, CU-UP, DU and RU are described as examples in this application. Any unit of CU (or CU-CP, CU-UP), DU and RU in this application may be implemented by a software module, a hardware module, or a combination of a software module and a hardware module.

[0128] It should be understood that the number of each device in the above communication system is only for illustration and is not limited thereto. In actual applications, the communication system may further include more terminal devices, more RAN devices, and other devices.

[0129] Figure 2 Schematic diagram of a network architecture 200 applicable to an embodiment of the present application. Figure 2 As shown, the network architecture 200 includes CN equipment, RAN equipment and terminal equipment.

[0130] Among them, the RAN equipment includes a baseband device and a radio frequency device. The baseband device can be implemented by one node or multiple nodes. The radio frequency device can be implemented independently from the baseband device or integrated in the baseband device, or some functions can be integrated independently and some functions can be integrated in the baseband device. For example, in an LTE communication system, the RAN equipment includes a baseband device and a radio frequency device. The radio frequency device can be arranged remotely from the baseband device, for example, the RRU is a remote radio unit arranged relative to the BBU.

[0131] The communication between RAN equipment and terminal equipment follows a certain protocol layer structure. For example, the control plane protocol layer structure may include functions of protocol layers such as the radio resource control (RRC) layer, the packet data convergence protocol (PDCP) layer, the radio link control (RLC) layer, the media access control (MAC) layer and the physical layer; the user plane protocol layer structure may include functions of protocol layers such as the PDCP layer, the RLC layer, the MAC layer and the physical layer; in a possible implementation, a service data adaptation protocol (SDAP) layer may also be included above the PDCP layer.

[0132] The RAN device may implement the functions of the protocol layers such as RRC, PDCP, RLC and MAC by one node, or may implement the functions of these protocol layers by multiple nodes. For example, in an evolutionary structure, the RAN device may include a CU and a DU, and multiple DUs may be centrally controlled by one CU. Figure 2 As shown, CU and DU can be divided according to the protocol layers of the wireless network, for example, the functions of the PDCP layer and above protocol layers are set in the CU, and the functions of the protocol layers below the PDCP, such as the RLC layer and the MAC layer, are set in the DU.

[0133] This division of the protocol layer is only an example. It can also be divided in other protocol layers, such as dividing in the RLC layer, setting the functions of the RLC layer and the protocol layers above in the CU, and the functions of the protocol layers below the RLC layer in the DU; or dividing in a certain protocol layer, for example, setting some functions of the RLC layer and the functions of the protocol layers above the RLC layer in the CU, and setting the remaining functions of the RLC layer and the functions of the protocol layers below the RLC layer in the DU. In addition, it can also be divided in other ways, such as dividing by latency, setting the functions whose processing time needs to meet the latency requirements in the DU, and the functions that do not need to meet the latency requirements in the CU.

[0134] In addition, the radio frequency device can be independently integrated and not placed in the DU, or it can be integrated in the DU, or partly remotely located and partly integrated in the DU, without any limitation here.

[0135] Figure 3 Schematic diagram of a network architecture 300 applicable to an embodiment of the present application. Figure 2 The network architecture shown, Figure 3 The CP and UP of the CU can also be separated and divided into different entities for implementation, namely: CU-CP entity and CU-UP entity.

[0136] In the above network architecture, the signaling generated by the CU can be sent to the terminal device through the DU, or the signaling generated by the terminal device can be sent to the CU through the DU. The DU can directly encapsulate the signaling through the protocol layer and transparently transmit it to the terminal device or CU without parsing it. In the following embodiments, if the transmission of such signaling between the DU and the terminal device is involved, at this time, the sending or receiving of the signaling by the DU includes this scenario. For example, the signaling of the RRC or PDCP layer will eventually be processed as the signaling of the PHY layer and sent to the terminal device, or it will be converted from the received signaling of the PHY layer. Under this architecture, the signaling of the RRC or PDCP layer can also be considered to be sent by the DU, or sent by the DU and the RF loader.

[0137] Above Figure 1 , Figure 2 or Figure 3 The network architecture shown can be applicable to communication systems of various radio access technologies (RAT), for example, it can be an LTE communication system, it can be a 5G communication system, it can also be a transition system between the LTE communication system and the 5G communication system, and the transition system can also be called a 4.5G communication system, and of course it can also be a future communication system.

[0138] The network architecture and service scenarios described in this application are intended to more clearly illustrate the technical solutions of the embodiments of this application and do not constitute a limitation on the technical solutions provided by this application. It is known to those skilled in the art that with the evolution of the communication network architecture and the emergence of new service scenarios, the technical solutions provided by this application are also applicable to similar technical problems. For example, this application can be applied to V2X scenarios.

[0139] It should be understood that Figure 1-Figure 3 The network architecture shown is only an example description and does not have any limiting effect. The embodiments of the present application may also be applicable to other network architectures, for example, without distinguishing between base stations and core networks, that is, base stations and core networks may belong to the same network device, and the communication between the network device and the terminal device; or the communication between the terminal devices, etc.

[0140] The NR protocol architecture involved in the embodiments of the present application can be divided into a user plane protocol stack and a control plane protocol stack. Figure 4 Describe the two protocol stacks mentioned above.

[0141] Figure 4 It is a schematic diagram of a protocol stack 400 according to an embodiment of the present application. Figure 4 The description is made by taking the interaction between a terminal device and a base station as an example. Figure 4 (a) shows the user plane protocol stack, Figure 4 (b) shows the control plane protocol stack.

[0142] User plane protocol stack: The protocol suite used for user data transmission. Figure 4 As shown in (a), the user plane protocol stack may include five layers: a PHY layer, a MAC layer, an RLC layer, a PDCP layer, and a SDAP layer.

[0143] Control plane protocol stack architecture: the protocol cluster used for the system's control signaling transmission. Figure 4 As shown in (b), the control plane protocol stack may include a non-access-stratum (NAS), RRC, PDCP, RLC, MAC, and PHY layer.

[0144] For example, the PHY layer may be responsible for processing one or more of encoding and decoding, modulation and demodulation, multi-antenna mapping, and other physical layer functions. For example, the MAC layer may be responsible for one or more of hybrid automatic repeat request (HARQ), uplink scheduling, downlink scheduling, etc. For example, the RLC layer may be responsible for one or more of segmentation, reorganization, and retransmission processing. For example, the PDCP layer may be responsible for one or more of header compression / decompression, security (encryption function, integrity protection function), retransmission, and in-order delivery. For example, the RRC layer may be responsible for one or more of broadcasting, paging, RRC connection management, radio bearer control, mobility management, terminal device measurement reporting and control. For example, the NAS layer may be responsible for one or more of identity authentication, mobility management, security control, etc.

[0145] For the user plane protocol stack, the NR protocol stack has an additional SDAP layer compared to the LTE protocol stack. For the control plane protocol stack, the NR protocol stack is similar to the LTE protocol stack.

[0146] Optionally, each layer in the protocol stack may also be replaced by an entity. For example, the PDCP layer may be replaced by a PDCP entity, and the SDAP layer may be replaced by an SDAP entity. A unified description is made here, and no further description is given later.

[0147] To facilitate understanding and explanation, the relevant terms involved in the embodiments of the present application are briefly described below.

[0148] Network slicing: refers to a logical network with different network capabilities and characteristics customized based on different service requirements or tenants on top of a physical or virtual network infrastructure.

[0149] A network slice can be a complete end-to-end network including terminal equipment, access network, transmission network, core network and application server, which can provide telecommunication services and has certain network capabilities. A network slice can also be any combination of the above terminal equipment, access network, transmission network, core network and application server. For example, a network slice only includes the access network and the core network. A network slice may have one or more of the following characteristics: the access network may or may not support network slicing, and the access network may be shared by multiple network slices. The characteristics of different network slices and the network function modules that make them up may be different.

[0150] The network slice identifier may include but is not limited to at least one of the following: network slice type information, service type information, tenant information, user group information, slice group information, network slice instance information, dedicated core network (DCN) identifier, single network slice selection assistance information (S-NSSAI), S-NSSAI group information, temporary identifier (TemporaryID), R-NSSAI (RAN-NSSAI) and network slice differentiator (slice differentiator, SD).

[0151] The above terms are defined as follows:

[0152] Network slice type information, for example, the network slice type information may indicate network slice types such as enhanced mobile broadband (eMBB), ultra-reliable low latency communications (URLLC), massive machine type communications (mMTC), etc. Optionally, the network slice type information may also indicate an end-to-end network slice type, including a RAN to CN network slice type, or may refer to a RAN side network slice type, or a CN side network slice type.

[0153] Network slice selection assistance information (NSSAI): refers to a value defined by a standard or a private value defined within a PLMN. An NSSAI is composed of multiple S-NSSAIs.

[0154] Each S-NSSAI may correspond to a specific slice.

[0155] Single-NSSAI (S-NSSAI): may contain two values, namely, slice / service type (SST) and slice differentiator (SD), or only slice / service type.

[0156] Service type.

[0157] Slice / Service Type: Indicates the characteristics and services that the network is expected to provide.

[0158] Network slice distinguishing identifier: indicates that the selected network slice instance is supplementary information for the slice / service type. When the slice / service type points to multiple network slice instances, the network slice distinguishing identifier can further distinguish these network slice instances.

[0159] S-NSSAI may contain at least slice type / service type (SST) information, and optionally, slice differentiator (SD) information. The SST information is used to indicate the behavior of the network slice, such as the characteristics of the network slice and the service type. The SD information is the supplementary information of the SST. If the SST points to multiple network slice implementations, then the SD can correspond to a unique network slice instance.

[0160] Network slice access-stratum group (NSAG): A group consisting of several network slices. The access stratum (AS) of the network usually configures corresponding cell reselection parameters and random access channel (RACH) parameters for each NSAG, and the terminal device can perform cell reselection and random access according to the above parameters.

[0161] Each NSAG is identified by an NSAG ID. In addition, each NSAG includes one or more network slices.

[0162] The communication method, communication device and system according to the embodiments of the present application are described below in conjunction with the accompanying drawings.

[0163] For ease of understanding and explanation, the following describes the communication method of the embodiment of the present application by taking the interaction between terminal device #1 and access network device as an example, but this shall not constitute any limitation on the execution subject of the communication method of the embodiment of the present application. For example, terminal device #1 can be replaced by a component (such as a circuit, a chip, or a chip system, etc.) configured in terminal device #1, and the access network device can be replaced by a component (such as a circuit, a chip, or a chip system, etc.) configured in the access network device.

[0164] Figure 5 Schematic diagram of the interaction process of the communication method 500 of the embodiment of the present application. Figure 5As shown, the method 500 includes:

[0165] S501. The access network device sends information #1 (such as first information) to terminal device #1.

[0166] Accordingly, the terminal device #1 receives information #1. Information #1 is used to configure parameter #1 (such as the first parameter), and parameter #1 corresponds to network slice access layer group #1. For example, parameter #1 can be used by the terminal device to initiate network access #1 (such as the first network access) at NSAG #1; for example, the terminal device can initiate network access #1 at NSAG #1 according to parameter #1, and so on.

[0167] In a possible implementation, network access #1 may be at least one of cell reselection or random access. Exemplarily, network access #1 is cell reselection, or network access #1 is random access; or network access #1 is cell reselection and random access.

[0168] For example, network access #1 is cell reselection, and parameter #1 is a parameter used by terminal device #1 to perform cell reselection in NSAG #1, such as terminal device #1 can perform cell reselection in NSAG #1 according to parameter #1;

[0169] For example, network access #1 is random access, and parameter #1 is a parameter used for terminal device #1 to perform random access in NSAG #1, such as terminal device #1 can perform random access in NSAG #1 according to parameter #1;

[0170] For example, network access #1 is cell reselection and random access, and parameter #1 is a parameter used by terminal device #1 to perform cell reselection and random access in NSAG #1. For example, terminal device #1 can perform cell reselection and random access in NSAG #1 according to parameter #1.

[0171] Exemplarily, network access #1 is cell reselection, and parameter #1 is a cell reselection parameter, which may include:

[0172] Carrier frequency information. This information may be an index corresponding to the carrier frequency. For example, index 0 indicates the frequency of the carrier currently selected by terminal device #1, and indexes 1 to N indicate the frequencies of adjacent carriers indicated in the broadcast message;

[0173] Information about one or more NSAGs supported by the carrier. The information about each NSAG includes:

[0174] NSAG Identifier (NSAG ID);

[0175] NSAG reselection priority. The value can be an integer. A larger value indicates a higher reselection priority.

[0176] The reselection priority of NSAG is determined by the access network device according to factors such as carrier load and importance of NSAG. In addition, the reselection priority of NSAG can be used for carrier selection when the terminal device performs cell reselection. For a specific description, please refer to the description of carrier selection rules below.

[0177] Exemplarily, network access #1 is random access, and parameter #1 is a random access configuration parameter, which may include at least one of the following (not limited to this):

[0178] NSAG logo;

[0179] ·The number of preambles corresponding to the signal based on which the random access is performed. The signal based on which the random access is performed may be a synchronization signal block (SSB) or a channel state information reference signal (CSI-RS), etc., and this is not limited.

[0180] Power ramping step (this is an optional parameter), which is used to indicate the power ramping value during random access;

[0181] Scaling factor for back-off indicator (this is an optional parameter) which is used to indicate the scaling factor for back-off operation in the random access procedure.

[0182] After receiving the information #1, the terminal device #1 may initiate network access #1 in NSAG #1 according to the parameter #1 configured in the information #1. The terminal device #1 may record the relevant information when NSAG #1 initiates network access #1.

[0183] For example, network access #1 is random access, and terminal device #1 can record information about random access, radio link failure, mobility, etc. in a certain cell (the cell is associated with or corresponds to NSAG #1, or the cell supports NSAG #1) (for example, the number of random access attempts, the time to reconnect after link failure, etc.), and report this information to the access network device, and the access network device adjusts the parameters of the NSAG #1 granularity according to this information (for example, RACH parameters, cell switching parameters, etc.);

[0184] For example, network access #1 is a cell reselection, and terminal device #1 can record the selected NSAG, the priority of one or more NSAGs maintained, the NSAG with the same priority as the selected NSAG among the one or more NSAGs maintained, the NSAG with the highest priority among the one or more NSAGs maintained, and so on.

[0185] S502. Terminal device #1 sends information #2 (such as second information) to the access network device.

[0186] Correspondingly, the access network device receives information #2, where information #2 is used to indicate information related to NSAG #1 when terminal device #1 performs network access #1 according to parameter #1.

[0187] Exemplarily, network access #1 is random access, and the above information related to NSAG #1 may include identification information of the NSAG selected by terminal device #1, etc. When the above network access is random access, the embodiment of the present application may support adjustment of parameter configuration related to random access of the network slice access layer grouping granularity.

[0188] Exemplarily, network access #1 is cell reselection, and the above information related to NSAG #1 may include identification information of the NSAG selected by terminal device #1, etc. When the above network access is cell reselection, the embodiment of the present application may support adjustment of parameter configuration related to cell reselection at the granularity of network slice access layer grouping.

[0189] In the above solution, the above information #2 can be carried in radio resource control (RRC) signaling, such as a UE Information Response message, etc. In this way, the information related to NSAG #1 can be reported to the access network device using existing information.

[0190] In summary, after terminal device #1 accesses the network #1 according to parameter #1, it can report information related to NSAG #1 to the access network device, and the access network device can adjust the parameters previously configured by access network device #1 for NSAG #1 based on this information.

[0191] In the above scheme, terminal device #1 can initiate network access #1 in NSAG #1 according to parameter #1 configured in information #1, and can record information related to NSAG #1, such as the identification information of the NSAG selected by terminal device #1 or the priority information of the NSAG related to the NSAG selected by terminal device #1.

[0192] Furthermore, the terminal device #1 reports information related to NSAG #1 to the access network device, and the access network device can adjust the parameter configuration of the NSAG granularity based on this information. For example, the access network device can adjust the cell reselection parameters of NSAG #1 or adjust the random access configuration parameters of NSAG #1 based on the information related to NSAG #1.

[0193] Combined with the following Figures 6 to 9 right Figure 5 The method shown is further described.

[0194] It should be noted that Figure 6 and Figure 8 The content shown is described by taking network access #1 as a cell reselection as an example. Figure 7 and Fig. 9 The content shown is described by taking network access #1 as random access as an example.

[0195] Figure 6 600 is a schematic diagram of the interaction process of the communication method 600 of the embodiment of the present application. Figure 6 As shown, the method 600 includes:

[0196] Optionally, S601, the access network device sends information #3 to the CN device.

[0197] Correspondingly, the CN device receives information #3. Information #3 includes information of one or more NSAGs supported by the access network device. For ease of description, the following description is based on an example in which the access network device supports NSAG #1, NSAG #2, and NSAG #3, but does not limit the scenario in which the access network device supports more NSAGs.

[0198] For example, information #3 includes information of NSAG #1, information of NSAG #2, and information of NSAG #3:

[0199] 1) Information on NSAG#1 includes:

[0200] NSAG#1 logo;

[0201] The network slice identifier of one or more network slices corresponding to NSAG#1. The identifier may be S-NSSAI.

[0202] 2) NSAG#2 information includes:

[0203] NSAG#2 logo;

[0204] The identifier of one or more network slices corresponding to NSAG#2.

[0205] 3) Information on NSAG#3 includes:

[0206] NSAG#3 logo;

[0207] The identifier of one or more network slices corresponding to NSAG#3.

[0208] Optionally, S602, the CN device sends information #4 to terminal device #1.

[0209] Correspondingly, terminal device #1 receives information #4. Information #4 includes information that the CN device determines the respective priorities of NSAG #1, NSAG #2, and NSAG #3 according to factors such as the network's own policies. For example, the CN device may assign a higher priority to NSAGs that serve important services or important users, and assign a lower priority to NSAGs that serve non-important services or non-important users.

[0210] Furthermore, information #4 includes information of NSAG #1, information of NSAG #2, and information of NSAG #3:

[0211] 1) Information on NSAG#1 includes:

[0212] NSAG#1 logo;

[0213] The identifier of one or more network slices corresponding to NSAG#1.

[0214] ·NSAG#1 priority. The value can be an integer. The smaller the value, the higher the priority.

[0215] 2) NSAG#2 information includes:

[0216] NSAG#2 logo;

[0217] The identifier of one or more network slices corresponding to NSAG#2.

[0218] ·NSAG#3 priority. Its value can be an integer, and the smaller the value, the higher the priority.

[0219] 3) Information on NSAG#3 includes:

[0220] NSAG#3 logo;

[0221] The identifier of one or more network slices corresponding to NSAG#3.

[0222] ·NSAG#3 priority. Its value can be an integer, and the smaller the value, the higher the priority.

[0223] In this way, terminal device #1 can obtain the priority information of the three NSAGs supported by the access network device.

[0224] S603. The access network device sends information #1 to terminal device #1.

[0225] Correspondingly, the terminal device receives information #1.

[0226] For ease of description, the following description takes information #1 used to configure three parameters as an example, for example, information #1 is used to configure parameter #1, parameter #2, and parameter #3. Parameter #1 corresponds to NSAG #1, and parameter #1 is used to initiate network access #1 (such as cell reselection #1) at NSAG #1, parameter #2 corresponds to NSAG #2, and parameter #2 is used to initiate network access #2 (such as cell reselection #2) at NSAG #2, and parameter #3 corresponds to NSAG #3, and parameter #3 is used to initiate network access #3 (such as cell reselection #3) at NSAG #3.

[0227] Parameter #1 may include:

[0228] Frequency information of carrier #1;

[0229] Carrier #1 supports NSAG #1, and the reselection priority of NSAG #1 is 2.

[0230] Parameter #2 may include:

[0231] Frequency information of carrier #2;

[0232] Carrier #2 supports NSAG #2, and the reselection priority of NSAG #2 is 1.5.

[0233] Parameter #3 may include:

[0234] Frequency information of carrier #3;

[0235] Carrier #3 supports NSAG #3, and the reselection priority of NSAG #3 is 1.

[0236] In this way, terminal device #1 can obtain the frequency information of each carrier, the NSAG supported by each carrier, and the reselection priority of the NSAG, and terminal device #1 can perform cell reselection based on this information. When performing cell reselection, terminal device #1 can first select a carrier, and then select the cell with the strongest signal on the carrier for access.

[0237] As an example, carrier selection rule #1 may be: select the carrier corresponding to the NSAG with the highest "NSAG priority"; if there are multiple NSAGs with the highest priorities, select the carrier corresponding to the NSAG with the highest reselection priority among these NSAGs. Therefore, if the priority of NSAG#1 is higher than the priority of NSAG#2 and the priority of NSAG#3, terminal device #1 selects the carrier corresponding to NSAG#1; if the priority of NSAG#1 is the same as the priority of NSAG#2 and higher than the priority of NSAG#3, the reselection priority of NSAG#1 is higher than the priority of NSAG#2, etc., terminal device #1 selects the carrier corresponding to NSAG#1.

[0238] As another example, carrier selection rule #2 may be: select the carrier corresponding to the NSAG whose "NSAG priority" is higher than a threshold; if there are multiple NSAGs whose priorities are all higher than the threshold, select the carrier corresponding to the NSAG with the highest reselection priority among these NSAGs. Therefore, if the priority of NSAG#1 and the priority of NSAG#2 are both higher than the threshold, the reselection priority of NSAG#1 is higher than the priority of NSAG#2, and so on, terminal device #1 selects the carrier corresponding to NSAG#1.

[0239] For ease of description, carrier selection rule #2 is used as an example below. For example, the priority of NSAG #1 and the priority of NSAG #2 are both higher than the threshold, the reselection priority of NSAG #1 is higher than the reselection priority of NSAG #2, and terminal device #1 selects carrier #1 corresponding to NSAG #1 for cell access according to carrier selection rule #2.

[0240] In addition, the terminal device #1 may record information related to NSAG #1 when performing cell reselection #1 according to parameter #1. For example, the information related to NSAG #1 includes at least one of the following:

[0241] NSAG selected by terminal device #1 (e.g., NSAG #1);

[0242] · Among one or more NSAGs maintained by terminal device #1, an NSAG with a higher priority than the NSAG selected by terminal device #1;

[0243] · Among one or more NSAGs maintained by terminal device #1, an NSAG with the same priority as the NSAG selected by terminal device #1;

[0244] · The NSAG with the highest priority among one or more NSAGs maintained by terminal device #1.

[0245] In this way, the access network device can adjust the parameter configuration related to cell reselection at the network slice access layer group granularity based on the above information, for example, adjust the reselection priority information of some network slice access layer groups, thereby influencing the terminal device to avoid selecting a high-load carrier for access when performing cell reselection.

[0246] S604. Terminal device #1 sends information #2 to the access network device.

[0247] In a possible implementation, information #2 may include at least one of the following:

[0248] Identification information of NSAG#1, or identification information of NSAG*.

[0249] Among them, NSAG* can be an NSAG whose priority is higher than that of NSAG#1, or can be an NSAG whose priority is the same as or equal to that of NSAG#1.

[0250] In a possible implementation, the above-mentioned NSAG* may also be the NSAG with the highest priority. In this way, the access network device can obtain the identification information of the network slice access layer group with the highest priority among one or more network slice access layer groups maintained by the terminal device.

[0251] In one possible implementation, the identification information of NSAG may be the identification of NSAG or information related to the identification of NSAG. For example, when the identification of NSAG is associated with an index, the index associated with the identification of NSAG is an example in the aforementioned identification information of NSAG, but other possibilities are not limited.

[0252] As an example, when terminal device #1 reports the identification information of NSAG #1 to the access network device and does not report the identification information of other NSAGs to the access network device, the access network device can adjust the reselection priority of other NSAGs, for example, adjust the reselection priority of NSAG #2 and the reselection priority of NSAG #3 to 2.5 and 3.5 respectively.

[0253] As another example, when terminal device #1 reports the identification information of NSAG #1 to the access network device and does not report the identification information of other NSAGs to the access network device, the access network device can adjust the reselection priority of NSAG #1, for example, adjust the reselection priority of NSAG #1 to 0.5.

[0254] In another example, when terminal device #1 reports the identification information of NSAG* to the access network device, and does not report the identification information of NSAG#1 and the identification information of NSAG* to the access network device, the access network device can adjust the reselection priority of NSAG* to 5, and can adjust the reselection priority of NSAG#1 to 1.2.

[0255] It should be noted that when terminal device #1 reports identification information of multiple NSAGs to the access network device, the identification information of the multiple NSAGs can be arranged from low to high or from high to low according to the priority of the NSAG. In this way, the access network device can distinguish the priority relationship between the multiple NSAGs reported by terminal device #1, and then readjust the reselection priority of the multiple NSAGs. The specific adjustment method is not limited.

[0256] It should also be noted that the access network device can send a request message to the terminal device #1 for requesting the terminal device #1 to send information #2. Accordingly, the terminal device #1 can send information #2 to the access network device according to the request of the access network device. In this way, the terminal device #1 can send information #2 to the access network device according to the request of the access network device.

[0257] In a possible implementation, information #2 is sent after terminal device #1 enters the connected state. In this way, terminal device #1 can avoid frequently entering the connected state to report information #2, thereby reducing terminal energy consumption.

[0258] Optionally, S605, the access network device sends information #5 (such as third information).

[0259] The access network device can send information #5 to other terminal devices (such as terminal device #2), and can also send information #5 to terminal device #1, without limitation.

[0260] The access network device determines information #5 according to information #2, which can be used to configure parameter #4 (such as the second parameter), and parameter #4 can be used by terminal device #2 to perform network access #4. For the content included in information #5, please refer to Table 1. The content shown in Table 1 is only understood as an example and is not a final limitation.

[0261] Table 1

[0262]

[0263]

[0264] As shown in Table 1, information #5 includes information of carrier #1, information of carrier #2, and information of carrier #3. The information of carrier #1 includes: the reselection priority of the frequency of carrier #1 and NSAG #1 is 0.5, the information of carrier #2 includes: the reselection priority of the frequency of carrier #2 and NSAG #2 is 2.5, and the information of carrier #3 includes: the reselection priority of the frequency of carrier #3 and NSAG #3 is 3.

[0265] In this way, terminal device #2 can select carrier #2 instead of carrier #1 according to carrier selection rule #2.

[0266] Specifically, before the access network device receives information #2, the information of the three carriers configured by the access network device for the terminal device #1 is as follows:

[0267] Carrier #1 supports NSAG #1, and the reselection priority of NSAG #1 is 2;

[0268] Carrier #2 supports NSAG #2, and the reselection priority of NSAG #2 is 1.5;

[0269] Carrier #3 supports NSAG #3, and the reselection priority of NSAG #3 is 1.

[0270] As an example, the information #2 sent by terminal device #1 shows:

[0271] The NSAG currently selected by terminal device #1 is NSAG #1;

[0272] The priority of NSAG* is the same as that of NSAG#1.

[0273] When the access network device finds that the load of carrier #1 is too high, it can make the following adjustments: adjust the reselection priority of NSAG* to high and keep the reselection priority of NSAG#1 unchanged. The above adjustment method can guide terminal device #2 to reselect and access other carriers (such as the carrier corresponding to NSAG*), thereby reducing the load of carrier #1.

[0274] Another example, the information #2 sent by terminal device #1 shows:

[0275] The NSAG currently selected by terminal device #1 is NSAG #1;

[0276] · The priority of NSAG* is higher than that of NSAG#1.

[0277] When the access network device finds that the load of carrier #1 is too high, it can make the following adjustments: adjust the reselection priority of NSAG* to high and keep the reselection priority of NSAG#1 unchanged. The above adjustment method can guide terminal device #2 to reselect and access other carriers (such as the carrier corresponding to NSAG*), thereby reducing the load of carrier #1.

[0278] In another example, the information #2 sent by terminal device #1 shows:

[0279] The NSAG currently selected by terminal device #1 is NSAG #1;

[0280] NSAG* has the highest priority;

[0281] When the access network device finds that the load of carrier #1 is too high, it can make the following adjustments: adjust the reselection priority of NSAG* to high and keep the reselection priority of NSAG#1 unchanged. The above adjustment method can guide terminal device #2 to reselect and access other carriers (such as the carrier corresponding to NSAG*), thereby reducing the load of carrier #1.

[0282] In summary, terminal device #1 can report to the access network device information related to NSAG #1 when performing network access #1 according to parameter #1, and the access network device can adjust the parameters of NSAG #1 according to the information related to NSAG #1, so as to meet the needs of other terminal devices for network access. For example, terminal device #1 reports information #2, and the access network device determines the priority relationship between NSAGs according to information #2, so as to adjust the reselection priority of NSAG, so that other terminal devices select other carriers for cell reselection, thereby reducing the load of carrier #1.

[0283] Through the above scheme, the embodiment of the present application can support the access network device to adjust the parameter configuration of the NSAG granularity.

[0284] It should be noted that Figure 6 Some steps in the scheme may be optional, for example, S601 is optional, and S602 is optional. Therefore, the above description is only understood as an example and not as a final limitation.

[0285] Figure 7 FIG. 7 is a schematic diagram of the interaction flow of the communication method 700 according to an embodiment of the present application. Figure 7 As shown, the method 700 includes:

[0286] S701. The access network device sends information #1 to terminal device #1.

[0287] Correspondingly, terminal device #1 receives information #1.

[0288] Information #1 includes one or more random access channel (RACH) configuration information. For ease of description, the following description is based on an example in which the access network device supports RACH configuration information #1, RACH configuration information #2, and RACH configuration information #3, but does not limit the scenario in which the access network device supports more RACH configuration information.

[0289] For example, information #1 includes RACH configuration information #1, RACH configuration information #2, and RACH configuration information #3:

[0290] 1) RACH configuration information #1 includes:

[0291] NSAG#1 logo;

[0292] The number of preamble codes corresponding to the signal based on random access, for example, may be 10.

[0293] Power boost step length.

[0294] Fallback scaling factor.

[0295] 2) RACH configuration information #2 includes:

[0296] NSAG#2 logo;

[0297] The number of preamble codes corresponding to the signal based on random access, for example, may be 15.

[0298] Power boost step length.

[0299] Fallback scaling factor.

[0300] 3) RACH configuration information #3 includes:

[0301] NSAG#3 logo;

[0302] The number of preamble codes corresponding to the signal based on random access, for example, 20.

[0303] Power boost step length.

[0304] Fallback scaling factor.

[0305] It should be noted that the number of preamble codes corresponding to the signal on which the above-mentioned random access is based can be: the number of times or the quantity of preamble codes sent by terminal device #1 on the signal on which the random access is based. For example, during the random access process, terminal device #1 attempts to send the above-mentioned preamble code 5 times before successfully accessing. Then the number of the above-mentioned preamble codes included in information #2 is 5.

[0306] Terminal device #1 can determine the parameters used for random access based on the selected NSAG (taking NSAG #1 as an example) and the received RACH configuration information #1, and initiate random access (which can be network access #1). For example: Terminal device #1 can calculate a set of available preamble codes based on the number of preamble codes corresponding to the signal based on which each random access is based, and select a preamble code for random access; Terminal device #1 determines the power and backoff time used for each access attempt based on the power boost step size and the backoff scaling factor.

[0307] Optionally, S702, the access network device sends information #6 to terminal device #1, where information #6 is used to request terminal device #1 to send information #2.

[0308] Correspondingly, terminal device #1 receives information #6.

[0309] In a possible implementation, information #6 may be request information, query information, indication information, etc. Terminal device #1 may determine the need to send or report information #2 to the access network device based on information #6.

[0310] S703. Terminal device #1 sends information #2 to the access network device.

[0311] Accordingly, the access network device receives information #2, where information #2 includes at least one of the following:

[0312] ·Cell ID;

[0313] NSAG#1 logo;

[0314] The index of the signal on which random access is based;

[0315] The number of preambles corresponding to the signal on which random access is based.

[0316] In this way, the access network device can obtain relevant information when terminal device #1 performs random access in NSAG #1.

[0317] There is an association between the signal based on the random access, the cell identifier and NSAG#1. For example, the signal based on the random access is configured for NSAG#1, or terminal device #1 initiates random access in NSAG#1 through the signal based on the random access.

[0318] In addition, the cell indicated by the cell identifier may support one or more NSAGs, and the one or more NSAGs include NSAG#1.

[0319] In a possible implementation, information #2 is sent after terminal device #1 enters the connected state. In this way, terminal device #1 can avoid frequently entering the connected state to report information #2, thereby reducing terminal energy consumption.

[0320] Optionally, S704, the access network device sends information #7 (such as the third information).

[0321] For example, the access network device may send information #7 to other terminal devices (such as terminal device #2), or may send information #7 to terminal device #1, without limitation.

[0322] In this way, the access network device can send a new parameter configuration obtained by adjusting the parameter configuration of the NSAG#1 granularity to other terminal devices, so that other terminal devices can perform network access and the like according to the adjusted parameter configuration.

[0323] Among them, information #7 is determined by the access network device according to information #2, information #7 can be used to configure parameter #4 (such as the second parameter), and parameter #4 can be used by terminal device #2 to perform network access #4.

[0324] Specifically, the access network device can adjust the RACH configuration corresponding to NSAG#1 according to information #2. For example, if the value of "the number of preambles corresponding to the signal based on which the random access is based" associated with NSAG#1 is large, it means that the number of preambles currently configured for NSAG#1 is insufficient, and the access network device needs to increase the number of preambles corresponding to NSAG#1.

[0325] For example, the above information #7 may include:

[0326] 1) RACH configuration information #1 includes:

[0327] NSAG#1 logo;

[0328] The number of preamble codes corresponding to the signal based on random access, for example, 25.

[0329] Power boost step length.

[0330] Fallback scaling factor.

[0331] 2) RACH configuration information #2 includes:

[0332] NSAG#2 logo;

[0333] The number of preamble codes corresponding to the signal based on random access, for example, may be 15.

[0334] Power boost step length.

[0335] Fallback scaling factor.

[0336] 3) RACH configuration information #3 includes:

[0337] NSAG#3 logo;

[0338] The number of preamble codes corresponding to the signal based on random access, for example, 20.

[0339] Power boost step length.

[0340] Fallback scaling factor.

[0341] In this way, terminal device #2 can initiate random access according to the above-mentioned RACH configuration information #1 (if NSAG #1 is selected).

[0342] In summary, terminal device #1 can report to the access network device information related to NSAG#1 when performing network access #1 according to parameter #1, and the access network device can adjust the parameters of NSAG#1 according to the information related to NSAG#1, so as to meet the network access needs of other terminal devices. For example, terminal device #1 reports information #2, and the access network device determines that the number of preambles configured for NSAG#1 is insufficient according to information #2, so as to adjust the number of preambles configured for NSAG#1, so that other terminal devices can complete random access with less overhead when selecting NSAG#1.

[0343] Through the above scheme, the embodiment of the present application can support the access network device to adjust the parameter configuration of the NSAG granularity.

[0344] It should be noted that Figure 7 Some steps in the scheme may be optional, for example, S702 is optional, and S704 is optional. Therefore, the above description is only understood as an example and not as a final limitation.

[0345] Figure 6 and Figure 7 The above content is described based on the example that the access network equipment does not adopt the CU-DU separation architecture. Figure 8 and Fig. 9 The access network device adopts a CU-DU separation architecture to execute the above method.

[0346] It should be noted that by adopting the CU-DU separation architecture, the embodiments of the present application can support the cloud deployment of access network equipment. Specifically, the DU is responsible for the protocol layer with high real-time requirements, and the CU is responsible for the protocol layer with low real-time requirements. The DU should be deployed as close to the antenna as possible; the CU can be far away from the antenna, and multiple CUs can be deployed in the cloud to achieve resource sharing.

[0347] Figure 8 800 is a schematic diagram of the interaction process of the communication method 800 of the embodiment of the present application. Figure 8 As shown, the method 800 includes:

[0348] S801. CU sends information #1 to terminal device #1.

[0349] Correspondingly, terminal device #1 receives information #1.

[0350] For a detailed description, please refer to S603 and will not be repeated here.

[0351] S802. Terminal device #1 sends information #2 to CU.

[0352] Correspondingly, CU receives information #2.

[0353] For a detailed description, please refer to S604 and will not be repeated here.

[0354] S803. CU sends information #2 to DU.

[0355] Correspondingly, DU receives information #2.

[0356] The information #2 sent by the CU to the DU may also include identification information of the terminal device #1, so that the DU can determine that the information #2 comes from the terminal device #1.

[0357] In addition, the information interaction process between the CU and the DU is not described in detail in the embodiments of the present application.

[0358] Optionally, S804, DU determines information #5.

[0359] For the description of DU determination information #5, please refer to the description of S605 and will not be repeated here.

[0360] Through the above-mentioned technical solution, the embodiment of the present application can support the access network equipment to adopt a separated architecture to receive and process information, so as to complete the adjustment of the parameter configuration of the NSAG granularity, and it is also beneficial to the deployment of the access network equipment, such as cloud deployment.

[0361] It should be noted that Figure 8The method shown can be applied to a communication system, which includes a CU and a DU, and the CU and the DU interact to complete the above technical solution.

[0362] The above-mentioned communication system can be understood as a communication device or a communication apparatus. For example, the above-mentioned communication system can be understood as an access network device, which is not limited to this.

[0363] It should also be noted that the CU may be responsible for functions such as receiving and sending information. The CU communicates with the terminal device, for example, the CU sends information #1 to the terminal device, and the CU receives information #2 from the terminal device. The DU may be responsible for functions such as information processing, for example, the DU is used to adjust the parameter configuration of the network slice access layer grouping granularity according to information #2.

[0364] In a possible implementation, the CU mentioned above can be understood as a distributed device or a distributed apparatus, which can implement the same or similar functions as the CU. The DU can be understood as a centralized device or a centralized apparatus, etc., which can implement the same or similar functions as the DU.

[0365] Similarly, Figure 8 The description of CU and DU also applies to Fig. 9 The description is not repeated here.

[0366] Fig. 9 9 is a schematic diagram of the interaction flow of the communication method 900 of the embodiment of the present application. Fig. 9 As shown, method 900 includes:

[0367] S901. CU sends information #1 to terminal device #1.

[0368] Correspondingly, terminal device #1 receives information #1.

[0369] For the description of S901, please refer to S701 and will not be repeated here.

[0370] S902. CU sends information #6 to terminal device #1.

[0371] Correspondingly, terminal device #1 receives information #6.

[0372] For the description of S902, please refer to S702 and will not be repeated here.

[0373] S903. Terminal device #1 sends information #2 to CU.

[0374] Correspondingly, CU receives information #2.

[0375] S904. CU sends information #2 to DU.

[0376] Among them, the information #2 sent by CU to DU may also include identification information of terminal device #1 (for example, the identification of terminal device #1, or information related to the identification of terminal device #1 (which can be used to distinguish terminal device #1 from other terminal devices), which is not limited to this). In this way, DU can determine that the information #2 sent by CU comes from terminal device #1.

[0377] Furthermore, if the CU receives information #2 sent by multiple terminal devices, the CU can perform statistical processing on the information #2 from multiple terminal devices, for example, taking an average or maximum value of the above information, predicting the future average value or maximum value of the above information based on the characteristics of the above information, and sending the statistical results to the DU.

[0378] Furthermore, if the CU performs statistical processing on the plurality of information #2, at least one of the following items corresponding to each NSAG may be included:

[0379] The average number of transmissions of the preamble code corresponding to the signal based on random access,

[0380] The maximum number of transmissions of the preamble code corresponding to the signal based on random access,

[0381] a predicted value of an average value of the number of transmissions of the preamble code corresponding to the signal on which random access is based, or,

[0382] A predicted value of the maximum number of transmission times of a preamble corresponding to a signal based on random access.

[0383] In this way, the DU can adjust the random access configuration of the NSAG according to this information. Further, the DU can make a more detailed adjustment to the random access parameter configuration of the NSAG#1 granularity according to one or more of these information.

[0384] In a possible implementation, the CU may send the content included in the information #2 to the DU via one or more messages, without limitation.

[0385] Optionally, S905, DU determines information #7.

[0386] For a detailed description, please refer to S704 and will not be repeated here.

[0387] Through the above-mentioned technical solution, the embodiment of the present application can support the access network equipment to adopt a separated architecture to receive and process information, so as to complete the adjustment of the parameter configuration of the NSAG granularity, and it is also beneficial to the deployment of the access network equipment, such as cloud deployment.

[0388] It should be noted that Figures 5 to 9The scheme shown is described using NSAG as an example. The method described in the embodiment of the present application can also be applied to other features, such as reduced capability (RedCap), small data, message 3 repetition, etc.

[0389] Taking RedCap as an example, the access stratum (AS) of the network configures dedicated network access parameters for terminal devices using RedCap technology. The terminal devices access the network based on the above network access parameters and report RedCap-related network access information to the access network devices, thereby supporting the access network devices to adjust the network access parameters dedicated to RedCap.

[0390] In addition, the method described in the embodiments of the present application can also be applied to a combination of multiple features (feature combination), for example, a combination of NSAG and RedCap.

[0391] The following is an introduction to the device embodiment corresponding to the method embodiment of the present application. Among them, the following only briefly introduces the device, and the specific implementation steps and details of the scheme can refer to the method embodiment above.

[0392] In order to implement the functions in the method provided in this application, the terminal device and the network device may include a hardware structure and / or a software module, and implement the above functions in the form of a hardware structure, a software module, or a hardware structure plus a software module. Whether one of the above functions is executed in the form of a hardware structure, a software module, or a hardware structure plus a software module depends on the specific application and design constraints of the technical solution.

[0393] Fig.10 1 is a schematic block diagram of a communication device 1000 according to an embodiment of the present application. The communication device 1000 includes a processor 1010 and a communication interface 1020, and the processor 1010 and the communication interface 1020 may be interconnected via a bus 1030. The communication device 1000 may be a terminal device or an access network device.

[0394] Optionally, the communication device 1000 may further include a memory 1040. The memory 1040 includes, but is not limited to, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM), or a portable read-only memory (CD-ROM), and the memory 1040 is used for related instructions and data.

[0395] The processor 1010 may be one or more central processing units (CPUs). When the processor 1010 is a CPU, the CPU may be a single-core CPU or a multi-core CPU.

[0396] The processor 1010 may be a signal processor, a chip, or other integrated circuit that can implement the method of the present application, or a portion of the circuit used for processing functions in the aforementioned processor, chip or integrated circuit. In addition, the communication interface 1020 may also be an input / output interface, which is used for input or output of signals or data, or may be an input / output circuit.

[0397] When the communication apparatus 1000 is a terminal device, illustratively, the processor 1010 is used to perform the following operations: receiving information #1; sending information #2 to an access network device, etc.

[0398] When the communication apparatus 1000 is an access network device, illustratively, the processor 1010 is configured to perform the following operations: sending information #1; receiving information #2, etc.

[0399] The above contents are only exemplary descriptions. When the communication device 1000 is a terminal device or an access network device, it will be responsible for executing the methods or steps related to the terminal device or the access network device in the above method embodiments.

[0400] It is understandable that when the communication device 1000 is a terminal device or an access network device, the communication interface 1020 may also be referred to as a transceiver. The above description is only an exemplary description. For specific content, please refer to the content shown in the above method embodiment. Fig.10 The implementation of each operation in can also refer to Figures 5 to 9 The corresponding description of the method embodiment shown.

[0401] It should be noted that Fig.10The communication device 1000 shown may also be a module or part of an access network device. For example, the communication device 1000 may be a CU or DU in the access network device, which is not limited to this.

[0402] Fig.11 1 is a schematic block diagram of a communication device 1100 of an embodiment of the present application. The communication device 1100 may be a terminal device or an access network device, or may be a chip or module in the terminal device or the access network device, for implementing the method involved in the above embodiment. The communication device 1100 includes a transceiver unit 1110. The transceiver unit 1110 is exemplarily introduced below.

[0403] The transceiver unit 1110 may include a transmitting unit and a receiving unit. The transmitting unit is used to perform a transmitting action of the communication device, and the receiving unit is used to perform a receiving action of the communication device. For ease of description, the embodiment of the present application combines the transmitting unit and the receiving unit into one transceiver unit. A unified description is given here, and no further description is given later.

[0404] When the communication device 1100 is a terminal device, illustratively, the transceiver unit 1110 is used to receive information # 1. The transceiver unit 1110 is also used to send information # 2 to the access network device, etc.

[0405] Optionally, the communication device 1100 may further include a processing unit 1120, which is used to execute the contents of steps involving processing, coordination, etc. of the terminal device.

[0406] When the communication device 1100 is an access network device, illustratively, the transceiver unit 1110 is used to send information #1 to the terminal device; and is also used to receive information #2, etc.

[0407] Optionally, the communication device 1100 may further include a processing unit 1120, which is used to execute the contents of steps such as processing and coordination involved in the access network device.

[0408] The above contents are only exemplary descriptions. When the communication device 1100 is a terminal device or an access network device, it will be responsible for executing the methods or steps related to the terminal device or the access network device in the above method embodiments.

[0409] Optionally, the communication device 1100 further includes a storage unit 1130, where the storage unit 1130 is used to store a program or code for executing the aforementioned method.

[0410] It should be noted that Fig.11 The communication device 1100 shown may also be a module or part of an access network device. For example, the communication device 1100 may be a CU or DU in the access network device, which is not limited to this.

[0411] Fig.10 and Fig.11 The device embodiment shown is used to implement Figures 5 to 9 The content described. Fig.10 and Fig.11 The specific execution steps and methods of the device shown can refer to the contents described in the aforementioned method embodiment.

[0412] The present application also provides a chip, including a processor, for calling and executing instructions stored in a memory from the memory, so that a communication device equipped with the chip executes the methods in the above examples.

[0413] The present application also provides another chip, including: an input interface, an output interface, and a processor, wherein the input interface, the output interface, and the processor are connected via an internal connection path, and the processor is used to execute the code in the memory, and when the code is executed, the processor is used to execute the method in each of the above examples. Optionally, the chip also includes a memory, and the memory is used to store computer programs or codes.

[0414] The present application also provides a processor, which is coupled to a memory and is used to execute the methods and functions involving a network device or a terminal device in any of the above-mentioned embodiments.

[0415] In another embodiment of the present application, a computer program product including instructions is provided. When the computer program product is run on a computer, the method of the above embodiment is implemented.

[0416] The present application also provides a computer program. When the computer program is executed in a computer, the method of the above embodiment is implemented.

[0417] In another embodiment of the present application, a computer-readable storage medium is provided, wherein the computer-readable storage medium stores a computer program, and when the computer program is executed by a computer, the method described in the above embodiment is implemented.

[0418] 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.

[0419] 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.

[0420] In several embodiments provided in the present application, 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 units is only a logical function division. There may be other division methods in actual implementation. For example, 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.

[0421] 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.

[0422] 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.

[0423] If the function is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the embodiment 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, server, or network device, etc.) to perform all or part of the steps of the methods of each embodiment of the present application. The aforementioned storage medium includes: various media that can store program codes, such as USB flash drives, mobile hard drives, ROM, RAM, magnetic disks, or optical disks.

[0424] The above are only specific implementations of the embodiments of the present application, but the protection scope of the embodiments of the present application is not limited thereto. Any technician familiar with the technical field can easily think of changes or replacements within the technical scope disclosed in the embodiments of the present application, which should be included in the protection scope of the embodiments of the present application. Therefore, the protection scope of the embodiments of the present application shall be based on the protection scope of the claims.

Claims

1. A communication method, characterized in that: include: Receiving first information, where the first information is used to configure a first parameter, where the first parameter corresponds to a first network slice access layer grouping; Send second information, where the second information is used to indicate information related to the first network slice access layer grouping when the terminal device accesses the network according to the first parameter.

2. The method according to claim 1, characterized in that The network access is at least one of cell reselection and random access.

3. The method according to claim 2, characterized in that The network access is the random access, and the second information includes identification information of the first network slice access layer group.

4. The method according to claim 3, characterized in that The second information also includes at least one of the following: A cell identifier, an index of a signal on which random access is based, or the number of preamble codes corresponding to the signal on which random access is based, wherein the signal on which random access is based is associated with the first network slice access layer grouping.

5. The method according to claim 2, characterized in that: The network access is the cell reselection, and the second information includes at least one of the following: The identification information of the first network slice access layer packet, or the identification information of the second network slice access layer packet, The first network slice access layer group is a network slice access layer group selected by the terminal device, The second network slice access layer grouping satisfies at least one of the following: The priority of the second network slice access layer packet is higher than the priority of the first network slice access layer packet, or, The priority of the second network slice access layer packet is equal to the priority of the first network slice access layer packet.

6. The method according to claim 5, characterized in that The second network slice access layer grouping also satisfies: The second network slice access layer group is the network slice access layer group with the highest priority among the one or more network slice access layer groups maintained by the terminal device.

7. The method according to claim 5 or 6, characterized in that: The method further comprises: Receive request information, where the request information is used to request the terminal device to send the second information.

8. The method according to any one of claims 1 to 7, characterized in that The second information is carried in radio resource control signaling.

9. The method according to any one of claims 1 to 8, characterized in that The second information is sent after the terminal device enters a connected state.

10. The method according to any one of claims 1 to 9, characterized in that The sending of the second information comprises: The second information is sent to a centralized unit of the access network device.

11. A communication method, characterized in that: Applied to access network equipment, including: Sending first information, where the first information is used to configure a first parameter, where the first parameter corresponds to a first network slice access layer group; Receive second information, where the second information is used to indicate information related to the first network slice access layer grouping when the terminal device accesses the network according to the first parameter.

12. The method according to claim 11, characterized in that The network access is at least one of cell reselection and random access.

13. The method according to claim 12, characterized in that The network access is the random access, and the second information includes identification information of the first network slice access layer group.

14. The method according to claim 13, characterized in that The second information also includes at least one of the following: A cell identifier, an index of a signal on which random access is based, or the number of preamble codes corresponding to the signal on which the random access is based, and the signal on which the random access is based is associated with the first network slice access layer grouping.

15. The method according to claim 12, characterized in that The network access is the cell reselection, and the second information includes at least one of the following: The identification information of the first network slice access layer packet, or the identification information of the second network slice access layer packet, The first network slice access layer group is a network slice access layer group selected by the terminal device, The second network slice access layer grouping satisfies at least one of the following: The priority of the second network slice access layer packet is higher than the priority of the first network slice access layer packet, or, The priority of the second network slice access layer packet is equal to the priority of the first network slice access layer packet.

16. The method according to claim 15, characterized in that The second network slice access layer grouping also satisfies: The second network slice access layer group is the network slice access layer group with the highest priority among the one or more network slice access layer groups maintained by the terminal device.

17. The method according to claim 15 or 16, characterized in that The method further comprises: Send a request message, where the request message is used to request the terminal device to send the second information.

18. The method according to any one of claims 11 to 17, characterized in that The method further comprises: Send third information, where the third information is determined based on the second information, the third information is used to configure a second parameter, the second parameter is used for the network access, the second parameter corresponds to the first network slice access layer grouping, and the second parameter is different from the first parameter.

19. The method according to any one of claims 11 to 18, characterized in that The access network device includes a distributed unit and a centralized unit, and the receiving the second information includes: The central unit receives the second information; The centralized unit sends the second information to the distributed unit.

20. The method according to claim 19, characterized in that The network access is the random access, and the second information sent by the centralized unit to the distributed unit further includes at least one of the following: The average value of the number of transmission times of the preamble code corresponding to the signal on which the random access is based, the maximum value of the number of transmission times of the preamble code corresponding to the signal on which the random access is based, the predicted value of the average value of the number of transmission times of the preamble code corresponding to the signal on which the random access is based, or the predicted value of the maximum value of the number of transmission times of the preamble code corresponding to the signal on which the random access is based.

21. The method according to any one of claims 11 to 20, characterized in that The second information is carried in radio resource control signaling.

22. The method according to any one of claims 11 to 21, characterized in that The second information is sent after the terminal device enters a connected state.

23. A communication system, characterized in that: include: Centralized units and distributed units; The centralized unit is used to send first information, where the first information is used to configure a first parameter, where the first parameter corresponds to a first network slice access layer grouping; The centralized unit is further configured to receive second information, where the second information is used to indicate information related to the first network slice access layer grouping when the terminal device performs network access according to the first parameter, and is further configured to send the second information to the distributed unit; The distributed unit is used to receive the second information.

24. The communication system according to claim 23, characterized in that The network access is at least one of cell reselection and random access.

25. The communication system according to claim 24, characterized in that The network access is the random access, and the second information includes identification information of the first network slice access layer group.

26. The communication system according to claim 24, characterized in that The network access is the cell reselection, and the second information includes at least one of the following: The identification information of the first network slice access layer packet, or the identification information of the second network slice access layer packet, The first network slice access layer group is a network slice access layer group selected by the terminal device, The second network slice access layer grouping satisfies at least one of the following: The priority of the second network slice access layer packet is higher than the priority of the first network slice access layer packet, or, The priority of the second network slice access layer packet is equal to the priority of the first network slice access layer packet.

27. The communication system according to any one of claims 23 to 26, characterized in that: The distributed unit is used to determine third information according to the second information, wherein the third information is used to configure the second parameter, The second parameter is used to perform the network access, the second parameter corresponds to the first network slice access layer grouping, the second parameter is different from the first parameter, and is also used to send the third information to the centralized unit; The centralized unit is used to receive the third information and also to send the third information.

28. A communication device, characterized in that: comprising a processor configured to, by executing a computer program or instructions, or, by means of a logic circuit, The communication device is caused to perform the method according to any one of claims 1 to 10; or, The communication device is enabled to execute the method according to any one of claims 11 to 22.

29. A communication device, characterized in that: It includes a logic circuit and an input / output interface, wherein the input / output interface is used to input and / or output signals. The logic circuit is used to execute the method according to any one of claims 1 to 10; or, The logic circuit is configured to execute the method according to any one of claims 11 to 22.

30. A computer-readable storage medium, characterized in that: The computer readable storage medium stores a computer program or instruction. When the computer program or instruction is executed on a computer, so that the method of any one of claims 1 to 10 is performed; or, The method according to any one of claims 11 to 22 is performed.

31. A computer program product, characterized in that Contains instructions that, when executed on a computer, so that the method of any one of claims 1 to 10 is performed; or, The method according to any one of claims 11 to 22 is performed.

Images