Communication method, device, terminal, base station, and storage medium

Abstract

The present application discloses a communication method, an apparatus, a terminal, a base station, and a storage medium, the method including a step of a terminal receiving at least two sets of settings transmitted from a base station, each set of settings in the at least two sets of settings including carrier information or BWP information, characterizing a carrier or BWP configured for a specific terminal or a specific slice or a specific service performing row random access by a network side.

Description

Cross-Citation of Related Applications

[0001] This application is based on and claims priority from a Chinese patent application with Chinese patent application number "202110853153.0" and filed on July 27, 2021, the entire contents of which are hereby incorporated by reference into this application. [Technical Field]

[0002] The present application relates to the field of wireless technology, and in particular to a communication method, an apparatus, a terminal, a base station, and a storage medium. [Background technology]

[0003] During random access, the terminal completes random access based on the random access resource configured by the network side. In the related art, random access collisions inevitably occur during random access between terminals with different capabilities, which affects the communication efficiency of the terminals. Summary of the Invention

[0004] To solve the related technical problems, the embodiments of the present application provide a communication method, an apparatus, a terminal, a base station, and a storage medium.

[0005] The technical solution of the embodiment of the present application is realized as follows.

[0006] An embodiment of the present application provides a communication method applied to a terminal, the method including a step of receiving at least two sets of settings transmitted from a base station, each set of settings in the at least two sets of settings including carrier information or bandwidth part (BWP) information characterizing a carrier or BWP configured by a network side for a specific terminal or a specific slice or a specific service that communicates.

[0007] An embodiment of the present application further provides a communication method applied to a base station, the method including a step of transmitting at least two sets of settings, each set of settings including carrier information or BWP information characterizing a carrier or BWP configured by a network side for a specific terminal or a specific slice or a specific service that communicates.

[0008] An embodiment of the present application further provides a communication device, the device comprising: a first receiving unit configured to receive at least two sets of settings transmitted from a base station, each set of settings in the at least two sets of settings including carrier information or BWP information characterizing a carrier or BWP, which is a specific terminal or a specific slice or a specific service setting for a network side to communicate with.

[0009] An embodiment of the present application further provides a communication device, the device comprising: a first transmitting unit configured to transmit at least two sets of settings, each set of settings in the at least two sets of settings including carrier information or BWP information characterizing a carrier or BWP configured by a network side for a specific terminal or a specific slice or a specific service performing communication.

[0010] An embodiment of the present application further provides a terminal comprising a first processor and a first communication interface, wherein the first communication interface is configured to receive at least two sets of settings transmitted from a base station, and each set of settings in the at least two sets of settings includes carrier information or BWP information characterizing a carrier or BWP set by the network side for a specific terminal or a specific slice or a specific service that communicates.

[0011] An embodiment of the present application further provides a base station comprising a second processor and a second communication interface, wherein the second communication interface is configured to transmit at least two sets of settings, and each set of settings in the at least two sets of settings includes carrier information or BWP information characterizing a carrier or BWP set by the network side for a specific terminal or a specific slice or a specific service that communicates.

[0012] An embodiment of the present application further provides a terminal, the terminal comprising: a first processor; and a first memory configured to store a computer program executable by the processor; The first processor is configured to, when executing the computer program, perform the steps of any of the methods described above on the terminal side.

[0013] An embodiment of the present application further provides a base station comprising a second processor and a second memory configured to store a computer program executable by the processor, wherein the second processor is configured to perform the steps of any of the methods described above on the base station side when executing the computer program.

[0014] An embodiment of the present application further provides a storage medium containing a computer program, which, when executed by a processor, implements the steps of any of the methods described above.

[0015] The embodiments of the present application provide a communication method, device, terminal, base station, and storage medium, in which a terminal receives at least two sets of configurations transmitted from a base station, each set of configurations including carrier information or BWP information, the carrier information or BWP information characterizing a carrier or BWP configured by a network side for a specific terminal communicating with the base station, or a carrier or BWP configured by the network side for a specific slice or a specific service. Based on the at least two sets of random access resources configured by the base station, a specific terminal can select a corresponding random access resource to perform random access during random access, or the terminal can select a corresponding random access resource based on the corresponding slice or service to perform random access. Based on the above solution, when random access collision occurs, a low-capability terminal or a terminal corresponding to a low-priority service can be supported to switch BWPs, thereby distinguishing terminal capabilities or service priorities when resolving random access collisions and ensuring priority access for high-capability terminals or high-priority services, thereby more effectively resolving random access collisions and ensuring terminal communication efficiency. [Brief explanation of the drawings]

[0016] [Figure 1] 1 is a schematic flowchart of a communication method according to an embodiment of the present application; [Figure 2] 4 is a schematic flowchart of another communication method according to an embodiment of the present application; [Figure 3] FIG. 10 is a diagram illustrating a second example of information transmission in the communication method according to the embodiment of the present application. [Figure 4] 1 is a schematic configuration diagram of a communication device according to an embodiment of the present application. [Figure 5] FIG. 10 is a schematic diagram of another communication device according to an embodiment of the present application. [Figure 6] 1 is a schematic configuration diagram of a terminal according to an embodiment of the present application; [Figure 7] FIG. 1 is a schematic configuration diagram of a base station according to an embodiment of the present application. DETAILED DESCRIPTION OF THE INVENTION

[0017] The contention-based random access process is divided into four steps. In the first step, corresponding to message 1 (MSG 1), the terminal sends a preamble to the network side. In the second step, corresponding to message 2 (MSG 2), the network sends a random access response (RAR) to the terminal. In the third step, the terminal sends message 3 (MSG 3) to the network side. In the fourth step, the network sends message 4 (MSG 4) to the terminal. The purpose of exchanging MSG 3 and MSG 4 between the terminal and the network side is to resolve contention caused by the possibility that multiple terminals in a cell may simultaneously transmit the same preamble. A two-step random access process can also be adopted. The first message (MSG A) corresponds to MSG 1 and MSG 3 in the four-step random access process and is sent by the terminal to the network side. The second message (MSG B) corresponds to MSG 2 and MSG 4 in the four-step random access process and is sent by the network side to the terminal. Specifically, MSG A includes a preamble and a terminal identifier (ID), or includes a preamble, a terminal ID, and a packet. During a four-step random access process, the terminal ID may be a resume ID of the terminal for resuming a Radio Resource Control (RRC) link, or may be a generated random number. During a two-step random access process, the terminal ID may be a resume ID or a Cell-Radio Network Temporary Identifier (C-RNTI).

[0018] During random access, the terminal completes the random access based on the random access resource configured by the network side. In the related art, the random access resource configuration method cannot effectively avoid random access collision.

[0019] Based on this, embodiments of the present application provide a communication method, device, terminal, base station, and storage medium, in which a terminal receives at least two sets of settings transmitted from a base station, each of the at least two sets of settings including carrier information or BWP information, which characterizes a carrier or BWP configured by a network side for a specific terminal performing communication, or a carrier or BWP configured by the network side for a specific slice or a specific service. Based on the at least two sets of random access resources configured by the base station, during random access, a specific terminal can select a corresponding random access resource to perform random access, or the terminal can select a corresponding random access resource based on the corresponding slice or service to perform random access, thereby effectively avoiding random access collisions between terminals corresponding to different terminal types or different slices or services.

[0020] The present application will now be described in more detail in conjunction with the accompanying drawings and examples.

[0021] An embodiment of the present application provides a communication method applied to a terminal, and referring to FIG. 1, the method includes the following step 101:

[0022] In step 101, at least two sets of settings transmitted from the base station are received.

[0023] Each of the at least two sets of settings includes carrier information or BWP information that characterizes a carrier or BWP set by the network side for a specific terminal, a specific slice, or a specific service that communicates.

[0024] In actual application, the base station may broadcast at least two sets of carrier settings or carrier configurations through system information. The broadcasted settings characterize the carrier or BWP set by the network side for a specific terminal communicating, or the carrier or BWP set by the network side for a specific slice or a specific service. For example, a base station broadcasts three sets of settings, each corresponding to three bandwidth levels: large, medium, and small. Assume that the BWP for each bandwidth level corresponds to one type of terminal. In actual application, a terminal of the corresponding type can select a BWP that matches the terminal type to perform the random access process. If the BWP for each bandwidth level corresponds to one slice type or service type, a terminal that selects the corresponding slice can select a BWP that matches the slice type to perform the random access process. A terminal that requests access to the corresponding service can select a BWP that matches the service type to perform the random access process. In this way, based on at least two sets of random access resources configured in the base station, during random access, a specific terminal can select a corresponding random access resource to perform random access, or a terminal can select a corresponding random access resource based on a corresponding slice or service to perform random access, thereby effectively avoiding random access collisions between terminals of different terminal types or corresponding to different slices or services.

[0025] In one embodiment, each set of settings in the at least two sets of settings includes at least one of a carrier frequency point, a BWP frequency point, and an SMTC cycle.

[0026] In practical application, after a terminal initiates random access in the initial BWP, the base station can redirect a specific type of terminal, a terminal that selects a specific slice, or a terminal that requests a specific service to a correspondingly designated carrier or BWP in the at least two sets of settings. Based on this, in one embodiment, the method further includes receiving first information transmitted from the base station in a first carrier or a first BWP.

[0027] The first information instructs the terminal to perform a random access process using a first carrier or a first BWP, and / or instructs the terminal to perform a random access process using a second carrier or a second BWP.

[0028] In one embodiment, the first information is carried in an RAR or MSG 4 transmitted from the base station and sent to the terminal.

[0029] When actually applied, the first information can be regarded as a carrier or BWP change instruction, instructing the terminal to continue the random access process using the current carrier or BWP, or instructing the terminal to redirect to a carrier or BWP matching the terminal type, slice type or service type to perform the random access process based on the above at least two sets of settings.

[0030] In one embodiment, the first information can provide different carrier or BWP change instructions to different types of terminals, i.e., the first information instructs that both the first type terminal and the second type terminal perform a random access process using the first carrier or the first BWP, that both the first type terminal and the second type terminal perform a random access process on the second carrier or the second BWP, or that the first type terminal performs a random access process using the first carrier or the first BWP and the second type terminal performs a random access process on the second carrier or the second BWP.

[0031] In one embodiment, the first type of terminal characterizes a normal terminal and the second type of terminal characterizes a low-capability terminal. That is, the first type of terminal and the second type of terminal can be distinguished based on terminal capabilities. It is also possible to distinguish the first type of terminal from the second type of terminal based on the slice selected by the terminal or the service requested by the terminal.

[0032] Taking distinguishing different types of terminals by terminal capability as an example, when actually applied, the first information may be bit information. For example, when the first information is '00', it instructs both normal terminals and low capability terminals to continue the random access process using the current carrier or BWP; when the first information is '01', it instructs the normal terminal to continue the random access process using the current carrier or BWP and the low capability terminal to redirect to the carrier or BWP specified for the low capability terminal in the configuration to perform the random access process; when the first information is '10', it instructs the normal terminal to redirect to the carrier or BWP set for the normal terminal in the configuration to perform the random access process, and the low capability terminal to redirect to the carrier or BWP set for the low capability terminal in the configuration to perform the random access process. It can be understood that when the above first information is not carried in the RAR or MSG 4 sent from the base station, both normal terminals and low capability terminals continue the random access process using the current carrier or BWP.

[0033] According to the above solution, after a terminal initiates random access in the initial BWP, the base station can redirect terminals of a specific type or corresponding to a specific slice type or specific service type to another BWP. Based on this, when a random access collision occurs, the above solution can support low-capability terminals or terminals corresponding to low-priority services to switch BWPs, thereby distinguishing between terminal capabilities or service priorities when resolving random access collisions and ensuring priority access for high-capability terminals or high-priority services, thereby more effectively resolving random access collisions. Note that the other BWP to which the terminal redirects is not a cell-defined SSB, i.e., not the initial BWP. This type of redirected BWP does not have a random access channel, but can be used for load balancing.

[0034] In the related art, when a random access collision occurs during a contention-based random access process, the type of terminal is not distinguished in the priority processing at the time of access, and therefore, a low-capability terminal has a higher access priority and completes random access in priority over a normal terminal.

[0035] Based on this, in one embodiment, the method further comprises receiving second information transmitted from the base station.

[0036] The second information instructs the terminal to use a first access priority parameter and / or instructs the terminal to use a second access priority parameter.

[0037] In one embodiment, the second information can be carried in MSG 2 or MSG B transmitted from the base station and transmitted to the terminal.

[0038] In actual application, the second information can serve as a fallback instruction to instruct the terminal to use the currently used access priority parameters, i.e., the originally set access priority parameters, or to use another set of set access priority parameters. Specifically, the second information can specify different fallback instructions for different types of terminals. That is, the second information can instruct both the first type terminal and the second type terminal to use the first access priority parameters, the first type terminal to use the first access priority parameters and the second type terminal to use the second access priority parameters, or both the first type terminal and the second type terminal to use the second access priority parameters.

[0039] In one embodiment, the first type of terminal characterizes a normal terminal and the second type of terminal characterizes a low-capability terminal. That is, the first type of terminal and the second type of terminal can be distinguished based on terminal capabilities. It is also possible to distinguish the first type of terminal from the second type of terminal based on the slice selected by the terminal or the service requested by the terminal.

[0040] In practical application, the base station transmits at least two sets of access priority parameters to the terminal in advance through system information. In one embodiment, before receiving the second information transmitted from the base station, the method further includes receiving at least two sets of access priority parameters transmitted from the base station.

[0041] Each set of access priority parameters in the at least two sets of access priority parameters characterizes access priority parameters set by the network side for a specific terminal, a specific slice, or a specific service.

[0042] The access priority parameters include a random access step size parameter and / or a rollback time parameter and are used to set the access priority of a terminal. For example, a terminal configured with a higher random access step size and / or a shorter rollback time has a correspondingly higher access priority and is prioritized for completing random access. In practical applications, the base station broadcasts at least two sets of carrier configurations or carrier configurations through system information. For example, the base station broadcasts two sets of access priority parameters, where the first set of access priority parameters characterizes a lower random access step size or a longer rollback time, and the second set of access priority parameters characterizes a higher random access step size or a shorter rollback time. In this way, when a random access collision occurs between a normal terminal and a low-capability terminal, the low-capability terminal can avoid the normal terminal and achieve a more delayed access.

[0043] In one embodiment, the access priority corresponding to the first access priority parameter is higher than the access priority corresponding to the second access priority parameter.

[0044] The first access priority parameter characterizes an access priority parameter assigned by the network side to a normal terminal, and the second access priority parameter characterizes an access priority parameter assigned by the network side to a low capability terminal.

[0045] In order to ensure that normal terminals have higher access priority than low-capability terminals, the network side sets an access priority parameter for transmission priority for normal terminals and / or sets an access priority parameter for transmission delay for low-capability terminals, so that when a random access collision occurs, the low-capability terminal can roll back and ensure priority access for normal terminals.

[0046] The base station may specify access priority parameters for low-capability terminals, such as a lower random access step size or a longer rollback time, to the low-capability terminal. In this way, when a random access collision occurs between a normal terminal and a low-capability terminal, the low-capability terminal can access more slowly and avoid the normal terminal. In practice, the second information may be bit information. For example, if the second information is "00," it indicates that both the normal terminal and the low-capability terminal use the first access priority parameter; if the second information is "01," it indicates that the normal terminal uses the first access priority parameter and the low-capability terminal uses the set second access priority parameter; and if the second information is "10," it indicates that both the normal terminal and the low-capability terminal use the first access priority parameter. It should be noted that if the second information is not carried in MSG 2 or MSG B transmitted from the base station, both the normal terminal and the low-capability terminal continue to use their current access priority parameters. After receiving the second information, the terminal uses the corresponding access priority parameter based on the corresponding bit identifier.

[0047] In an embodiment of the present application, the terminal informs the base station of its type, and if practically applicable, the terminal can inform the base station of its type in an explicit manner. Based on this, in one embodiment, the method further includes transmitting third information to the base station.

[0048] The third information indicates the type of terminal, and the third information is carried in MSG 1, MSG 3, or MSG A for transmission.

[0049] In one embodiment, before transmitting the third information to the base station, the method further comprises receiving fourth information transmitted from the base station.

[0050] The fourth information indicates that the terminal reports the third information by MSG 1, MSG 3 or MSG A.

[0051] Before the terminal reports its terminal type, the base station transmits fourth information to the terminal, indicating in what manner the terminal reports its terminal type. In actual application, the manner indicated by the fourth information may be one of three types: the terminal reports its terminal type by MSG 1, the terminal reports its terminal type by MSG 3, and the terminal reports its terminal type by MSG A.

[0052] In one embodiment, the terminal can inform the base station of its terminal type in an implicit manner. Specifically, the base station first sends at least one set of preamble or random access opportunity (RO, RACH Occasion) resources to the terminal. For example, the base station sends two sets of preamble or RO resources, where the first set of preamble or RO resources corresponds to the configuration of a normal terminal and the second set of preamble or RO resources corresponds to the configuration of a low-capability terminal. In this way, the terminal selects to initiate a random access process on the corresponding resources based on its own terminal type according to the two sets of preamble or RO resources sent by the base station. Therefore, the base station can determine the type of the terminal by receiving MSG 1 or MSG A sent by the terminal on the corresponding resources.

[0053] In an embodiment of the present application, the base station can transmit a first threshold and a second threshold to the terminal, the first threshold corresponding to a first type of terminal (normal terminal), and adopting two-step random access when the signal measurement value of the serving cell by the first type of terminal is greater than the first threshold, and adopting four-step random access when the signal measurement value of the serving cell by the first type of terminal is equal to or less than the first threshold. The second threshold corresponding to a second type of terminal (low capability terminal), and adopting two-step random access when the signal measurement value of the serving cell by the second type of terminal is greater than the second threshold, and adopting four-step random access when the signal measurement value of the serving cell by the second type of terminal is equal to or less than the second threshold.

[0054] It should be noted that since the second type of terminal has weaker uplink capability than the first type of terminal, the coverage range of the second type of terminal adopting two-step random access is slightly inferior, and thus the second threshold corresponding to the second type of terminal is higher than the first threshold corresponding to the first type of terminal.

[0055] Accordingly, the embodiment of the present application further provides a communication method applied to a base station. As shown in FIG.

[0056] In step 201, at least two sets of settings are broadcast.

[0057] Each of the at least two sets of settings includes carrier information or BWP information that characterizes a carrier or BWP designated by the network side for a specific terminal or a specific slice or service that communicates.

[0058] In actual application, the base station broadcasts at least two sets of carrier configurations or carrier configurations according to system information. For example, the base station broadcasts three sets of configurations, each corresponding to three bandwidth levels: large, medium, and small. Assume that the BWP for each bandwidth level corresponds to a terminal type. In actual application, a terminal of the corresponding type can select a BWP that matches the terminal type to perform the random access process. If the BWP for each bandwidth level corresponds to a slice type or service type, a terminal that selects the corresponding slice can select a BWP that matches the slice type to perform the random access process. A terminal that requests access to the corresponding service can select a BWP that matches the service type to perform the random access process. In this way, based on the at least two sets of random access resources configured in the base station, a specific terminal can select a corresponding random access resource to perform random access during random access, or a terminal can select a corresponding random access resource based on the corresponding slice or service to perform random access, thereby effectively avoiding random access collisions between terminals corresponding to different terminal types or different slices or services.

[0059] In one embodiment, each set of settings in the at least two sets of settings includes at least one of a carrier frequency point, a BWP frequency point, and an SMTC cycle.

[0060] In one embodiment, the method further comprises transmitting the first information to the terminal.

[0061] The first information indicates that the terminal performs a random access procedure using a current carrier or BWP, and / or that the terminal performs a random access procedure on a designated carrier or BWP.

[0062] In this way, after a terminal initiates random access in the initial BWP, the base station can redirect a terminal of a specific type, a terminal that has selected a specific slice, or a terminal that requests a specific service to a correspondingly designated carrier or BWP in the at least two sets of settings.

[0063] In one embodiment, the first information is carried in an RAR or MSG 4 sent from the base station and sent to the terminal. The first information can be regarded as a carrier or BWP change instruction, instructing the terminal to continue the random access process using the current carrier or BWP, or instructing the terminal to redirect to a designated carrier or BWP that matches the terminal type, slice type, or service type based on the at least two sets of settings to perform the random access process.

[0064] In one embodiment, the first information can provide different carrier or BWP change instructions to different types of terminals, i.e., the first information instructs that both the first type terminal and the second type terminal perform the random access process using the current carrier or BWP, that both the first type terminal and the second type terminal perform the random access process on a designated carrier or BWP, or that the first type terminal performs the random access process using the current carrier or BWP and the second type terminal performs the random access process on a designated carrier or BWP.

[0065] In one embodiment, the first type of terminal characterizes a normal terminal and the second type of terminal characterizes a low-capability terminal. That is, the first type of terminal and the second type of terminal can be distinguished based on terminal capabilities. It is also possible to distinguish the first type of terminal from the second type of terminal based on the slice selected by the terminal or the service requested by the terminal.

[0066] Taking distinguishing different types of terminals by terminal capability as an example, when actually applied, the first information may be bit information. For example, when the first information is '00', it instructs both normal terminals and low capability terminals to continue the random access process using the current carrier or BWP; when the first information is '01', it instructs the normal terminal to continue the random access process using the current carrier or BWP and the low capability terminal to redirect to the carrier or BWP designated for the low capability terminal in the configuration to perform the random access process; when the first information is '10', it instructs the normal terminal to redirect to the carrier or BWP designated for the normal terminal in the configuration to perform the random access process and the low capability terminal to redirect to the carrier or BWP designated for the low capability terminal in the configuration to perform the random access process. It can be understood that when the above first information is not carried in the RAR or MSG 4 sent from the base station, both normal terminals and low capability terminals continue the random access process using the current carrier or BWP.

[0067] According to the above solution, after a terminal initiates random access in an initial BWP, the base station can redirect terminals of a specific type or terminals corresponding to a specific slice type or service type to other BWPs. Based on this, when a random access collision occurs, the above solution can support low-capability terminals or terminals corresponding to low-priority services to switch BWPs, thereby distinguishing terminal capabilities or service priorities when resolving random access collisions and ensuring priority access for high-capability terminals or high-priority services, thereby more effectively resolving random access collisions.

[0068] In the related art, when a random access collision occurs during a contention-based random access process, the type of terminal is not distinguished in the priority processing at the time of access, and therefore, a low-capability terminal has a higher access priority and completes random access in priority over a normal terminal.

[0069] Based on this, in one embodiment, the method further comprises the step of transmitting second information to the terminal.

[0070] The second information instructs the terminal to use current access priority parameters and / or instructs the terminal to use designated access priority parameters.

[0071] In one embodiment, the second information may be included in MSG 2 or MSG B transmitted from the base station and transmitted to the terminal.

[0072] In actual application, the second information can serve as an evacuation instruction to instruct the terminal to use the current access priority parameters, i.e., the originally set access priority parameters, or to instruct the terminal to use designated access priority parameters. Specifically, the second information can specify different evacuation instructions for different types of terminals. That is, the second information can instruct both the first type terminal and the second type terminal to use the current access priority parameters, the first type terminal to use the current access priority parameters and the second type terminal to use designated access priority parameters, or both the first type terminal and the second type terminal to use designated access priority parameters.

[0073] In practical application, the base station broadcasts at least two sets of access priority parameters to the terminal in advance through system information. In one embodiment, before transmitting second information to the terminal, the method further includes broadcasting at least two sets of access priority parameters.

[0074] Each set of access priority parameters in the at least two sets of access priority parameters characterizes access priority parameters for a specific terminal or a specific slice or service by the network side.

[0075] The access priority parameters include a random access step size parameter and / or a rollback time parameter and are used to set the access priority of a terminal. For example, a terminal configured with a higher random access step size and / or a shorter rollback time has a correspondingly higher access priority and is prioritized for completing random access. In practical applications, a base station broadcasts at least two sets of carrier configurations or carrier configurations through system information. For example, the base station broadcasts two sets of access priority parameters, where the first set of access priority parameters characterizes a lower random access step size or a longer rollback time, and the second set of access priority parameters characterizes a higher random access step size or a shorter rollback time. In this way, when a random access collision occurs between a normal terminal and a low-capability terminal, the low-capability terminal can avoid the normal terminal and achieve a more delayed access. Note that the base station can also carry the at least two sets of access priority parameters in a RAR. Referring to FIG. 3, in the RAR transmitted from the base station to the terminal, "R" is a reserved bit, and the "R" bit is used to instruct the low-capability terminal to use a longer rollback time, or the "R" bit is used to instruct the low-capability terminal that it cannot resume random access within a certain time. As an example, when the low-capability terminal receives the second information transmitted from the base station, it reads the rollback time indicated in the "R" bit and adopts a value longer than the indicated rollback time as the rollback time. For example, the rollback time can be increased by adopting a rollback time that is a certain multiple of the specified rollback time, or by adding a certain time to the specified rollback time. In the case of a normal terminal, the rollback time indicated in the "R" bit is directly used.

[0076] In one embodiment, the access priority corresponding to the first access priority parameter is higher than the access priority corresponding to the second access priority parameter.

[0077] The first access priority parameter characterizes an access priority parameter assigned by the network side to a normal type terminal, and the second access priority parameter characterizes an access priority parameter assigned by the network side to a low capability terminal.

[0078] In order to ensure that normal terminals have higher access priority than low-capability terminals, the network side sets an access priority parameter for transmission priority for normal terminals and / or sets an access priority parameter for transmission delay for low-capability terminals, so that when a random access collision occurs, the low-capability terminal can roll back and ensure priority access for normal terminals.

[0079] The base station may specify access priority parameters for low-capability terminals, such as a lower random access step size or a longer rollback time, to the low-capability terminal. In this way, when a random access collision occurs between a normal terminal and a low-capability terminal, the low-capability terminal can access more slowly and avoid the normal terminal. In practical applications, the second information may be bit information. For example, if the second information is "00," it indicates that both the normal terminal and the low-capability terminal use the current access priority parameters. If the second information is "01," it indicates that the normal terminal uses the current access priority parameters and the low-capability terminal uses the access priority parameters specified in the configuration. If the second information is "10," it indicates that both the normal terminal and the low-capability terminal use the current access priority parameters. It should be noted that if the second information is not carried in MSG 2 or MSG B sent from the base station, both the normal terminal and the low-capability terminal continue to use the current access priority parameters. After receiving the second information, the terminal uses the corresponding access priority parameters based on the corresponding bit identifier.

[0080] In one embodiment, the method further includes determining a terminal type of the terminal based on a preamble or a random access opportunity (RO) resource of MSG 1 or MSG A transmitted from the terminal, and / or third information carried in MSG 1, MSG 3, or MSG A transmitted from the terminal, and configuring different sets of random access resources for terminals of different types, where the third information indicates the type of the terminal.

[0081] In practical application, the terminal may explicitly indicate its type to the base station. In one embodiment, the method further includes determining the terminal type of the terminal based on third information carried in MSG 1, MSG 3, or MSG A transmitted from the terminal.

[0082] The third information indicates the type of the terminal.

[0083] In one embodiment, the method further comprises the step of transmitting fourth information to the terminal before based on third information carried in MSG 1, MSG 3 or MSG A transmitted from the terminal.

[0084] The fourth information indicates that the terminal reports the third information by MSG 1, MSG 3 or MSG A.

[0085] Before the terminal reports its terminal type, the base station transmits fourth information to the terminal, indicating in what manner the terminal reports its terminal type. In actual application, the manner indicated by the fourth information may be one of three types: the terminal reports its terminal type by MSG 1, the terminal reports its terminal type by MSG 3, and the terminal reports its terminal type by MSG A.

[0086] The terminal can also implicitly indicate its type to the base station. Specifically, the base station first transmits at least one set of preambles or RO resources to the terminal. For example, the base station transmits two sets of preambles or RO resources, where the first set of preambles or RO resources corresponds to a normal terminal configuration and the second set of preambles or RO resources corresponds to a low-capability terminal configuration. In this way, the terminal selects to initiate a random access process on the corresponding resources based on its terminal type based on the two sets of preambles or RO resources transmitted from the base station. Thus, the base station can determine the terminal type by receiving MSG 1 or MSG A transmitted by the terminal on the corresponding resources. Based on this, the method further includes determining the terminal type of the terminal based on the preamble or random access opportunity (RO) resource of MSG 1 or MSG A transmitted from the terminal.

[0087] In an embodiment of the present application, the base station can transmit a first threshold and a second threshold to the terminal, the first threshold corresponding to a first type of terminal (normal terminal), and adopting two-step random access when the signal measurement value of the serving cell by the first type of terminal is greater than the first threshold, and adopting four-step random access when the signal measurement value of the serving cell by the first type of terminal is equal to or less than the first threshold. The second threshold corresponding to a second type of terminal (low capability terminal), and adopting two-step random access when the signal measurement value of the serving cell by the second type of terminal is greater than the second threshold, and adopting four-step random access when the signal measurement value of the serving cell by the second type of terminal is equal to or less than the second threshold.

[0088] It should be noted that since the second type of terminal has weaker uplink capability than the first type of terminal, the coverage range of the second type of terminal adopting two-step random access is slightly inferior, and thus the second threshold corresponding to the second type of terminal is higher than the first threshold corresponding to the first type of terminal.

[0089] According to the embodiments of the present application, during random access, a specific terminal can select a corresponding random access resource to perform random access, or a terminal can select a corresponding random access resource based on a corresponding slice or service to perform random access, thereby effectively avoiding random access collisions between terminals of different terminal types or corresponding to different slices or services, and realizing a delayed access for low-capability terminals or low-priority services between terminals of different terminal types or corresponding to different slices or services, thereby avoiding normal terminals or high-priority services.

[0090] To realize the method of the embodiments of the present application, the embodiments of the present application further provide a communication device provided in a terminal, and as shown in FIG. 4, the device includes: a first receiving unit 401 configured to receive at least two sets of settings broadcasted by a base station, and each set of settings in the at least two sets of settings includes carrier information or BWP information, which characterizes a carrier or BWP designated by the network side for a specific terminal or a specific slice or service communicating.

[0091] In one embodiment, the apparatus further comprises a second receiving unit configured to receive first information transmitted from the base station, the first information instructing the terminal to perform a random access process using a current carrier or BWP and / or the terminal to perform a random access process on a designated carrier or BWP.

[0092] In one embodiment, the first information instructs that both the first type terminal and the second type terminal perform a random access process using a current carrier or BWP, that both the first type terminal and the second type terminal perform a random access process on a designated carrier or BWP, or that the first type terminal performs a random access process using a current carrier or BWP and the second type terminal performs a random access process on a designated carrier or BWP.

[0093] In one embodiment, the first type of terminal characterizes a normal terminal and the second type of terminal characterizes a low capability terminal.

[0094] In one embodiment, the first information is carried in an RAR or MSG 4 transmitted from the base station.

[0095] In one embodiment, each set of settings in the at least two sets of settings includes at least one of a carrier frequency point, a BWP frequency point, and an SMTC cycle.

[0096] In one embodiment, the apparatus further comprises a third receiving unit configured to receive second information transmitted from the base station, the second information instructing the terminal to use current access priority parameters and / or instructing the terminal to use designated access priority parameters.

[0097] In one embodiment, the device further comprises a fourth receiving unit configured to receive at least two sets of access priority parameters broadcasted by the base station before receiving the second information transmitted from the base station, wherein each set of access priority parameters in the at least two sets of access priority parameters characterizes access priority parameters specified by a network side for a specific terminal or a specific slice or service.

[0098] In one embodiment, the access priority corresponding to a first access priority parameter is higher than the access priority corresponding to a second access priority parameter, the first access priority parameter characterizing an access priority parameter assigned by the network side to a normal terminal, and the second access priority parameter characterizing an access priority parameter assigned by the network side to a low capability terminal.

[0099] In one embodiment, the second information indicates that both the first type terminal and the second type terminal use current access priority parameters, that the first type terminal uses current access priority parameters and the second type terminal uses designated access priority parameters, or that both the first type terminal and the second type terminal use designated access priority parameters.

[0100] In one embodiment, the apparatus further comprises a first transmitting unit configured to transmit third information to the base station, the third information indicating a type of terminal, and the third information being carried in MSG 1, MSG 3 or MSG A for transmission.

[0101] In one embodiment, the apparatus further comprises a fifth receiving unit configured to receive fourth information transmitted from the base station before transmitting third information to the base station, wherein the fourth information indicates that the terminal reports the third information by MSG 1, MSG 3 or MSG A.

[0102] In practical application, the first receiving unit 401, the second receiving unit, the third receiving unit, the fourth receiving unit, the first transmitting unit and the fifth receiving unit can be realized by a communication interface of a communication device.

[0103] To realize the method of the embodiment of the present application, the embodiment of the present application further provides a communication device provided in a base station, and as shown in FIG. 5, the device includes: a first broadcasting unit 501 configured to broadcast at least two sets of settings, and each set of settings in the at least two sets of settings includes carrier information or BWP information characterizing a carrier or BWP assigned by the network side to a specific terminal or a specific slice or service that communicates.

[0104] In one embodiment, the apparatus further comprises a second sending unit configured to send first information to the terminal, the first information instructing the terminal to perform the random access process using a current carrier or BWP and / or the terminal to perform the random access process on a designated carrier or BWP.

[0105] In one embodiment, the first information instructs that both the first type terminal and the second type terminal perform a random access process using a current carrier or BWP, that both the first type terminal and the second type terminal perform a random access process on a designated carrier or BWP, or that the first type terminal performs a random access process using a current carrier or BWP and the second type terminal performs a random access process on a designated carrier or BWP.

[0106] In one embodiment, the first type of terminal characterizes a normal terminal and the second type of terminal characterizes a low capability terminal.

[0107] In one embodiment, the first information is carried in an RAR or MSG 4 transmitted from the base station.

[0108] In one embodiment, each set of settings in the at least two sets of settings includes at least one of a carrier frequency point, a BWP frequency point, and an SMTC cycle.

[0109] In one embodiment, the apparatus further comprises a third sending unit configured to send second information to the terminal, the second information instructing the terminal to use current access priority parameters and / or instructing the terminal to use specified access priority parameters.

[0110] In one embodiment, the device further comprises a second broadcasting unit configured to broadcast at least two sets of access priority parameters before transmitting second information to the terminal, wherein each set of access priority parameters in the at least two sets of access priority parameters characterizes access priority parameters specified by a network side for a specific terminal or a specific slice or service.

[0111] In one embodiment, the access priority corresponding to a first access priority parameter is higher than the access priority corresponding to a second access priority parameter, the first access priority parameter characterizing an access priority parameter assigned by the network side to a normal type terminal, and the second access priority parameter characterizing an access priority parameter assigned by the network side to a low capability terminal.

[0112] In one embodiment, the second information indicates that both the first type terminal and the second type terminal use current access priority parameters, that the first type terminal uses current access priority parameters and the second type terminal uses designated access priority parameters, or that both the first type terminal and the second type terminal use designated access priority parameters.

[0113] In one embodiment, the apparatus further comprises: a determining unit configured to determine a terminal type of a terminal based on a preamble or a random access opportunity (RO) resource of MSG 1 or MSG A transmitted from the terminal and / or based on third information carried in MSG 1, MSG 3 or MSG A transmitted from the terminal; and a setting unit configured to set different sets of random access resources for terminals of different types.

[0114] In one embodiment, the apparatus further comprises a fourth sending unit configured to send fourth information to the terminal, where the fourth information indicates that the terminal reports the third information by MSG 1, MSG 3 or MSG A.

[0115] In practical application, the first broadcasting unit 501, the second transmitting unit, the third transmitting unit, the second broadcasting unit and the fourth transmitting unit can be realized by the communication interface of the random access device, and the setting unit and the determination unit can be realized by the processor of the communication device.

[0116] It should be noted that the communication device provided in the above embodiments only takes the division of each of the above program modules as an example when performing random access, but in actual application, the allocation of the above processing can be completed by different program modules as needed, and the internal structure of the device can be divided into different program modules to complete all or part of the processing described above. It should be noted that the communication device and the communication method embodiments provided in the above embodiments belong to the same concept, and the specific implementation process should be referred to the method embodiments, and the description thereof will be omitted here.

[0117] To realize the terminal-side methods of the embodiments of the present application based on the hardware implementation of the above program modules, the embodiments of the present application further provide a terminal, as shown in Figure 6, the terminal 600 includes: a first communication interface 601 capable of information interaction with other network nodes; and a first processor 602 connected to the first communication interface 601 to realize information interaction with other network nodes, the first processor 602 being configured to execute the methods provided by one or more technical solutions on the terminal side when executing a computer program. Meanwhile, the computer program is stored in a first memory 603.

[0118] Specifically, the first communication interface 601 is configured to receive at least two sets of settings broadcasted by a base station, and each set of settings in the at least two sets of settings includes carrier information or BWP information, which characterizes a carrier or BWP designated by the network side for a specific terminal or a specific slice or service that communicates.

[0119] In one embodiment, the first communication interface 601 is further configured to receive first information sent from the base station, the first information instructing the terminal to perform a random access process using a current carrier or BWP and / or to perform a random access process on a designated carrier or BWP.

[0120] In one embodiment, the first information instructs that both the first type terminal and the second type terminal perform a random access process using a current carrier or BWP, that both the first type terminal and the second type terminal perform a random access process on a designated carrier or BWP, or that the first type terminal performs a random access process using a current carrier or BWP and the second type terminal performs a random access process on a designated carrier or BWP.

[0121] In one embodiment, the first type of terminal characterizes a normal terminal and the second type of terminal characterizes a low capability terminal.

[0122] In one embodiment, the first information is carried in an RAR or MSG 4 transmitted from the base station.

[0123] In one embodiment, each set of settings in the at least two sets of settings includes at least one of a carrier frequency point, a BWP frequency point, and an SMTC cycle.

[0124] In one embodiment, the first communication interface 601 is further configured to receive second information transmitted from the base station, the second information instructing the terminal to use current access priority parameters and / or instructing the terminal to use specified access priority parameters.

[0125] In one embodiment, the first communication interface 601 is further configured to receive at least two sets of access priority parameters broadcast by the base station before receiving the second information transmitted from the base station, and each set of access priority parameters in the at least two sets of access priority parameters characterizes access priority parameters specified by the network side for a specific terminal or a specific slice or service.

[0126] In one embodiment, the access priority corresponding to a first access priority parameter is higher than the access priority corresponding to a second access priority parameter, the first access priority parameter characterizing an access priority parameter assigned by the network side to a normal terminal, and the second access priority parameter characterizing an access priority parameter assigned by the network side to a low capability terminal.

[0127] In one embodiment, the second information indicates that both the first type terminal and the second type terminal use current access priority parameters, that the first type terminal uses current access priority parameters and the second type terminal uses designated access priority parameters, or that both the first type terminal and the second type terminal use designated access priority parameters.

[0128] In one embodiment, the first communication interface 601 is further configured to transmit third information to the base station, the third information indicating the type of the terminal, and the third information being carried in MSG 1, MSG 3 or MSG A for transmission.

[0129] In one embodiment, the first communication interface 601 is further configured to receive fourth information transmitted from the base station before transmitting third information to the base station, and the fourth information instructs the terminal to report the third information by MSG 1, MSG 3 or MSG A.

[0130] The specific processing steps of the first processor 602 and the first communication interface 601 can be understood with reference to the above methods.

[0131] Of course, in actual applications, the components in the terminal 600 are coupled via a bus system 604. The bus system 604 is configured to realize communication between these components. The bus system 604 includes a power bus, a control bus, and a status signal bus in addition to a data bus. However, for clarity, various buses are referred to as the bus system 604 in FIG. 6.

[0132] The first memory 603 of an embodiment of the present application is configured to store various types of data to support the operation of the terminal 600. Examples of these data include any computer programs configured to run on the terminal 600.

[0133] The methods disclosed in the above embodiments of the present application can be applied to or realized by the first processor 602. The first processor 602 may be an integrated circuit chip having signal processing capabilities. In the implementation process, each step of the above method can be completed by a hardware integrated logic circuit in the first processor 602 or by instructions in software form. The first processor 602 may be a general-purpose processor, a digital signal processor (DSP), or other programmable logic device, a discrete or transistor logic device, a discrete hardware component, etc. The first processor 602 can implement or execute each method, step, and logic block diagram disclosed in the embodiments of the present application. The general-purpose processor may be a microprocessor or any conventional processor, etc. The steps of the methods disclosed in the embodiments of the present application can be directly embodied as being executed and completed by a hardware decoding processor or as being executed and completed by a combination of hardware and software modules in the decoding processor. The software module may reside in a storage medium, which resides in the first memory 603, and the first processor 602 reads the information in the first memory 603 and combines the hardware to complete the steps of the above method.

[0134] In an exemplary embodiment, terminal 600 is implemented by one or more Application Specific Integrated Circuits (ASICs), DSPs, Programmable Logic Devices (PLDs), Complex Programmable Logic Devices (CPLDs), Field-Programmable Gate Arrays (FPGAs), general-purpose processors, controllers, Micro Controller Units (MCUs), Microprocessors, or other electronic components capable of performing the methods.

[0135] To realize the base station-side method of the embodiment of the present application based on the hardware implementation of the above program modules, the embodiment of the present application further provides a base station, as shown in Figure 7, the base station 700 includes: a second communication interface 701 capable of information interaction with other network nodes; and a second processor 702 connected to the second communication interface 701 to realize information interaction with other network nodes, the second processor 702 being configured to execute the method provided by one or more technical solutions on the base station side when executing a computer program. Meanwhile, the computer program is stored in a second memory 703.

[0136] Specifically, the second communication interface 701 is configured to broadcast at least two sets of settings, and each set of settings in the at least two sets of settings includes carrier information or BWP information that characterizes a carrier or BWP designated by the network side for a specific terminal or a specific slice or service that communicates.

[0137] In one embodiment, the second communication interface 701 is further configured to send first information to the terminal, the first information instructing the terminal to perform a random access process using a current carrier or BWP, and / or the terminal to perform a random access process on a designated carrier or BWP.

[0138] In one embodiment, the first information instructs that both the first type terminal and the second type terminal perform a random access process using a current carrier or BWP, that both the first type terminal and the second type terminal perform a random access process on a designated carrier or BWP, or that the first type terminal performs a random access process using a current carrier or BWP and the second type terminal performs a random access process on a designated carrier or BWP.

[0139] In one embodiment, the first type of terminal characterizes a normal terminal and the second type of terminal characterizes a low capability terminal.

[0140] In one embodiment, the first information is carried in an RAR or MSG 4 transmitted from the base station.

[0141] In one embodiment, each set of settings in the at least two sets of settings includes at least one of a carrier frequency point, a BWP frequency point, and an SMTC cycle.

[0142] In one embodiment, the second communication interface 701 is further configured to transmit second information to the terminal, the second information instructing the terminal to use current access priority parameters and / or instructing the terminal to use specified access priority parameters.

[0143] In one embodiment, the second communication interface 701 is further configured to broadcast at least two sets of access priority parameters before transmitting the second information to the terminal, each set of access priority parameters in the at least two sets of access priority parameters characterizing access priority parameters specified by the network side for a specific terminal or a specific slice or service.

[0144] In one embodiment, the access priority corresponding to a first access priority parameter is higher than the access priority corresponding to a second access priority parameter, the first access priority parameter characterizing an access priority parameter assigned by the network side to a normal type terminal, and the second access priority parameter characterizing an access priority parameter assigned by the network side to a low capability terminal.

[0145] In one embodiment, the second information indicates that both the first type terminal and the second type terminal use current access priority parameters, that the first type terminal uses current access priority parameters and the second type terminal uses designated access priority parameters, or that both the first type terminal and the second type terminal use designated access priority parameters.

[0146] In one embodiment, the second processor 702 is configured to determine a terminal type of a terminal based on a preamble or random access opportunity (RO) resource of MSG 1 or MSG A transmitted from the terminal, and / or third information carried in MSG 1, MSG 3, or MSG A transmitted from the terminal, and to configure different sets of random access resources for terminals of different types, where the third information indicates the type of the terminal.

[0147] In one embodiment, the second communication interface 701 is further configured to send fourth information to the terminal, where the fourth information indicates that the terminal reports the third information by MSG 1, MSG 3 or MSG A.

[0148] The specific processing steps of the second processor 702 and the second communication interface 701 can be understood with reference to the above method.

[0149] In practice, the components in the base station 700 are coupled together via a bus system 704. The bus system 704 is configured to connect and communicate between these components. The bus system 704 includes a power bus, a control bus, and a status signal bus in addition to a data bus. However, for clarity, the various buses are referred to as the bus system 704 in FIG. 7.

[0150] The second memory 703 of an embodiment of the present application is configured to store various types of data to support the operation of the base station 700. Examples of these data include any computer programs configured to run on the base station 700.

[0151] The methods disclosed in the above embodiments of the present application can be applied to or realized by the second processor 702. The second processor 702 may be an integrated circuit chip having signal processing capabilities. In the implementation process, each step of the above method can be completed by a hardware integrated logic circuit or software instructions in the second processor 702. The second processor 702 may be a general-purpose processor, a DSP, or other programmable logic device, a discrete or transistor logic device, a discrete hardware component, etc. The second processor 702 can implement or execute each method, step, and logic block diagram disclosed in the embodiments of the present application. The general-purpose processor may be a microprocessor or any conventional processor, etc. The steps of the methods disclosed in the embodiments of the present application can be directly embodied as being executed and completed by a hardware decoding processor or as being executed and completed by a combination of hardware and software modules in the decoding processor. The software module may reside in a storage medium, which resides in the second memory 703, and the second processor 702 reads the information in the second memory 703 and combines its hardware to complete the steps of the above method.

[0152] In an exemplary embodiment, base station 700 may be implemented by one or more ASICs, DSPs, PLDs, CPLDs, FPGAs, general-purpose processors, controllers, MCUs, Micropocessors, or other electronic components to perform the above-described methods.

[0153] It is understood that the memory (first memory 603, second memory 703) in the embodiments of the present application may be volatile or nonvolatile, or may include both volatile and nonvolatile memory. The nonvolatile memory may be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), ferromagnetic random access memory (FRAM), flash memory, magnetic surface memory, optical disk, or read-only optical disk (CD-ROM, Compact Disc Read-Only Memory), and the magnetic surface memory may be magnetic disk memory or magnetic tape memory. The volatile memory may be random access memory (RAM) used as an external cache.By way of example and not limitation, many forms of RAM are available, such as static random access memory (SRAM), synchronous static random access memory (SSRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDRSDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synclink dynamic random access memory (SLDRAM), and direct memory bus random access memory (DRRAM). Memory described in the embodiments of this application is intended to include, but is not limited to, these and any other suitable types of memory.

[0154] In an exemplary embodiment, the embodiment of the present application further provides a storage medium, i.e., a computer storage medium, specifically a computer-readable storage medium, for example, including a first memory 1203 storing a computer program, the computer program being executable by the first processor 602 of the terminal 600 to complete the steps of the above-mentioned terminal-side method. Also, for example, including a second memory 703 storing a computer program, the computer program being executable by the second processor 702 of the base station 700 to complete the steps of the above-mentioned base station-side method. The computer-readable storage medium may be a memory such as FRAM, ROM, PROM, EPROM, EEPROM, Flash Memory, magnetic surface memory, optical disk, or CD-ROM.

[0155] It should be noted that the terms "first," "second," etc. are used to distinguish between similar objects without necessarily implying a particular order or priority.

[0156] Furthermore, the technical solutions described in the embodiments of the present application can be combined arbitrarily as long as they are not contradictory.

[0157] The above descriptions are only preferred embodiments of the present application, and do not limit the protection scope of the present application.

Claims

1. A communication method applied to a terminal, comprising: receiving at least two sets of configurations transmitted from a base station; receiving a first threshold value and a second threshold value transmitted from the base station; Including, Each of the at least two sets of settings includes carrier information or fractional bandwidth (BWP) information that characterizes a carrier or BWP set by a network side to a specific terminal, a specific slice, or a specific service that communicates; a first threshold corresponding to a first type of terminal, a second threshold corresponding to a second type of terminal, a two-step random access being adopted when a signal measurement value of a serving cell by the first type of terminal is greater than the first threshold, a four-step random access being adopted when a signal measurement value of a serving cell by the first type of terminal is equal to or less than the first threshold, a two-step random access being adopted when a signal measurement value of a serving cell by the second type of terminal is greater than the second threshold, and a four-step random access being adopted when a signal measurement value of a serving cell by the second type of terminal is equal to or less than the second threshold.

2. receiving first information transmitted from the base station on a first carrier or a first BWP; 2. The communication method according to claim 1, wherein the first information indicates that the terminal performs a random access procedure using a first carrier or a first BWP, and / or indicates that the terminal performs a random access procedure using a second carrier or a second BWP.

3. The first information is Both the first type terminal and the second type terminal perform a random access process using the first carrier or the first BWP; Both the first type terminal and the second type terminal perform a random access process on the second carrier or the second BWP; or 3. The communication method of claim 2, wherein the method instructs a first type of terminal to perform a random access process using a first carrier or a first BWP, and a second type of terminal to perform a random access process using a second carrier or a second BWP.

4. 4. The method of claim 3, wherein said first type of terminal characterizes a normal terminal and said second type of terminal characterizes a low capability terminal.

5. The communication method of claim 2 , wherein the first information is carried in a random access response (RAR) or MSG 4 transmitted from the base station.

6. Each set of settings in the at least two sets of settings comprises: a carrier frequency point; the frequency points of the BWP; a measurement time setting SMTC cycle based on a synchronization signal block; 2. The communication method of claim 1, comprising at least one of:

7. receiving second information transmitted from the base station; The communication method according to claim 1 , wherein the second information instructs the terminal to use a first access priority parameter and / or instructs the terminal to use a second access priority parameter.

8. before receiving second information transmitted from the base station using the first access priority parameter; receiving at least two sets of access priority parameters transmitted from the base station; The communication method according to claim 7 , wherein each set of access priority parameters in the at least two sets of access priority parameters characterizes access priority parameters set by a network side for a specific terminal, a specific slice, or a specific service.

9. the access priority corresponding to the first access priority parameter is higher than the access priority corresponding to the second access priority parameter; 9. The communication method according to claim 8, wherein the first access priority parameter characterizes an access priority parameter set by the network side for a normal terminal, and the second access priority parameter characterizes an access priority parameter set by the network side for a low capability terminal.

10. The second information is both the first type terminal and the second type terminal use a first access priority parameter; A first type of terminal uses a first access priority parameter and a second type of terminal uses a second access priority parameter; or 8. The communication method of claim 7, wherein both the first type terminal and the second type terminal indicate the use of the second access priority parameter.

11. transmitting third information to the base station; 2. The method of claim 1, wherein the third information indicates a type of terminal, and the third information is carried in MSG 1, MSG 3, or MSG A for transmission.

12. before transmitting third information to the base station, receiving fourth information transmitted from the base station; 12. The communication method according to claim 11, wherein the fourth information indicates that the terminal reports the third information by MSG 1, MSG 3, or MSG A.

13. A communication method applied to a base station, comprising: transmitting at least two sets of configurations; transmitting a first threshold value and a second threshold value; Including, Each of the at least two sets of settings includes carrier information or BWP information that characterizes a carrier or BWP set by the network side for a specific terminal, a specific slice, or a specific service that communicates; a first threshold corresponding to a first type of terminal, a second threshold corresponding to a second type of terminal, a two-step random access being adopted when a signal measurement value of a serving cell by the first type of terminal is greater than the first threshold, a four-step random access being adopted when a signal measurement value of a serving cell by the first type of terminal is equal to or less than the first threshold, a two-step random access being adopted when a signal measurement value of a serving cell by the second type of terminal is greater than the second threshold, and a four-step random access being adopted when a signal measurement value of a serving cell by the second type of terminal is equal to or less than the second threshold.

14. transmitting first information to a terminal on a first carrier or a first BWP; 14. The communication method of claim 13, wherein the first information instructs the terminal to perform a random access procedure using a first carrier or a first BWP, and / or instructs the terminal to perform a random access procedure on a second carrier or a second BWP.

15. The first information is Both the first type terminal and the second type terminal perform a random access process using the first carrier or the first BWP; Both the first type terminal and the second type terminal perform a random access process on the second carrier or the second BWP; or 15. The communication method of claim 14, wherein the method instructs a first type of terminal to perform a random access process using a first carrier or a first BWP, and a second type of terminal to perform a random access process on a second carrier or a second BWP.

16. 16. The method of claim 15, wherein the first type of terminal characterizes a normal terminal and the second type of terminal characterizes a low capability terminal.

17. 15. The communication method of claim 14, wherein the first information is carried in a RAR or MSG 4 transmitted from the base station.

18. Each set of settings in the at least two sets of settings is a carrier frequency point; the frequency points of the BWP; SMTC cycle and 14. The communication method of claim 13, comprising at least one of:

19. transmitting second information to the terminal; The communication method according to claim 13, wherein the second information indicates that the terminal uses a first access priority parameter and / or indicates that the terminal uses a second access priority parameter.

20. before transmitting second information to the terminal; broadcasting at least two sets of access priority parameters; 20. The communication method of claim 19, wherein each set of access priority parameters in the at least two sets of access priority parameters characterizes access priority parameters set by a network side for a specific terminal, a specific slice, or a specific service.

21. the access priority corresponding to the first access priority parameter is higher than the access priority corresponding to the second access priority parameter; 21. The communication method of claim 20, wherein the first access priority parameter characterizes an access priority parameter set by the network side for a normal type terminal, and the second access priority parameter characterizes an access priority parameter set by the network side for a low capability terminal.

22. The second information is both the first type terminal and the second type terminal use a first access priority parameter; A first type of terminal uses a first access priority parameter and a second type of terminal uses a second access priority parameter; or 20. The communication method of claim 19, wherein both the first type terminal and the second type terminal indicate the use of the second access priority parameter.

23. determining a terminal type of the terminal based on a preamble or a random access opportunity (RO) resource of MSG 1 or MSG A transmitted from the terminal and / or third information carried in MSG 1, MSG 3, or MSG A transmitted from the terminal; configuring different sets of random access resources for terminals of different terminal types; Including, 14. The method of claim 13, wherein the third information indicates a type of terminal.

24. before based on the third information carried in MSG 1, MSG 3 or MSG A transmitted from the terminal; transmitting fourth information to the terminal; 24. The communication method of claim 23, wherein the fourth information indicates that the terminal reports the third information by MSG 1, MSG 3, or MSG A.

25. a first receiving unit configured to receive at least two sets of settings transmitted from a base station; Each of the at least two sets of settings includes carrier information or BWP information that characterizes a carrier or BWP set by the network side for a specific terminal, a specific slice, or a specific service that communicates; the first receiving unit is further configured to receive a first threshold and a second threshold transmitted from the base station; a first threshold corresponding to a first type of terminal, and a second threshold corresponding to a second type of terminal; a communications device that employs two-step random access when a signal measurement value of a serving cell by the first type of terminal is greater than the first threshold, employs four-step random access when the signal measurement value of a serving cell by the first type of terminal is equal to or less than the first threshold, employs two-step random access when a signal measurement value of a serving cell by the second type of terminal is greater than the second threshold, and employs four-step random access when the signal measurement value of a serving cell by the second type of terminal is equal to or less than the second threshold.

26. a first transmitting unit configured to transmit at least two sets of settings; Each of the at least two sets of settings includes carrier information or BWP information that characterizes a carrier or BWP set by the network side for a specific terminal, a specific slice, or a specific service that communicates; the first transmitting unit is further configured to transmit a first threshold value and a second threshold value; a first threshold corresponding to a first type of terminal, and a second threshold corresponding to a second type of terminal; a communications device that employs two-step random access when a signal measurement value of a serving cell by the first type of terminal is greater than the first threshold, employs four-step random access when the signal measurement value of a serving cell by the first type of terminal is equal to or less than the first threshold, employs two-step random access when a signal measurement value of a serving cell by the second type of terminal is greater than the second threshold, and employs four-step random access when the signal measurement value of a serving cell by the second type of terminal is equal to or less than the second threshold.

27. a first processor and a first communication interface; the first communication interface is configured to receive at least two sets of settings transmitted from a base station; Each of the at least two sets of settings includes carrier information or BWP information that characterizes a carrier or BWP set by the network side for a specific terminal, a specific slice, or a specific service that communicates; the first communication interface is further configured to receive a first threshold and a second threshold transmitted from the base station; The first threshold corresponds to a first type of terminal, and the second threshold corresponds to a second type of terminal, and the terminal employs two-step random access when a signal measurement value of a serving cell by the first type terminal is greater than the first threshold, employs four-step random access when the signal measurement value of a serving cell by the first type terminal is equal to or less than the first threshold, employs two-step random access when a signal measurement value of a serving cell by the second type terminal is greater than the second threshold, and employs four-step random access when the signal measurement value of a serving cell by the second type terminal is equal to or less than the second threshold.

28. a second processor and a second communication interface; the second communication interface is configured to transmit at least two sets of settings; Each of the at least two sets of settings includes carrier information or BWP information that characterizes a carrier or BWP set by the network side for a specific terminal, a specific slice, or a specific service that communicates; the second communication interface is further configured to transmit a first threshold value and a second threshold value; a base station, the first threshold corresponding to a first type terminal and the second threshold corresponding to a second type terminal, employing two-step random access when a signal measurement value of a serving cell by the first type terminal is greater than the first threshold, employing four-step random access when a signal measurement value of a serving cell by the first type terminal is equal to or less than the first threshold, employing two-step random access when a signal measurement value of a serving cell by the second type terminal is greater than the second threshold, and employing four-step random access when a signal measurement value of a serving cell by the second type terminal is equal to or less than the second threshold.

29. a first processor and a first memory configured to store a computer program executable by the processor; A terminal, wherein the first processor is configured to perform the steps of the method according to any one of claims 1 to 12 when executing the computer program.

30. a second processor and a second memory configured to store a computer program executable by the processor; The base station, wherein the second processor is configured to perform the steps of the method of any one of claims 13 to 24 when executing the computer program.

31. A storage medium on which a computer program is stored, said computer program implementing the steps of the method according to any one of claims 1 to 12 when executed by a processor.

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