Communication methods, devices, terminals, base stations and storage media

Abstract

This application discloses a communication method, apparatus, terminal, base station, and storage medium. The method includes: the terminal receiving at least two sets of configurations sent by the base station; wherein each of the at least two sets of configurations includes carrier information or BWP information, representing the carrier or BWP configured by the network side for a specific terminal, a specific slice, or a specific service for random access.

Description

Technical Field

[0001] This application relates to the field of wireless technology, and in particular to a communication method, apparatus, terminal, base station and storage medium. Background Technology

[0002] The contention-based random access procedure consists of four steps: Step 1 corresponds to message 1 (MSG 1), where the terminal sends a preamble to the network; Step 2 corresponds to message 2 (MSG 2), where the network sends a Random-Access Response (RAR) to the terminal; Step 3, the terminal sends message 3 (MSG 3) to the network; and Step 4, the network sends message 4 (MSG 4) to the terminal. Alternatively, a two-step random access procedure can be used, where the first message (MSG A) corresponds to MSG 1 and MSG 3 in the four-step procedure and is sent from the terminal to the network, while the second message (MSG B) corresponds to MSG 2 and MSG 4 and is sent from the network to the terminal.

[0003] During random access, the terminal completes random access based on the random access resources configured by the network side. In related technologies, the network side allocates the same random access resources to all terminals performing random access, which inevitably leads to random access conflicts between terminals with different capabilities, affecting the communication efficiency of the terminals. Summary of the Invention

[0004] To address the related technical issues, embodiments of this application provide a communication method, apparatus, terminal, base station, and storage medium.

[0005] The technical solution of this application embodiment is implemented as follows:

[0006] This application provides a communication method applied to a terminal, the method comprising:

[0007] Receive at least two sets of configurations sent by the base station; among them,

[0008] Each of the at least two configurations includes carrier information or Bandwidth Part (BWP) information, which characterizes the carrier or BWP configured on the network side for a specific terminal, a specific slice, or a specific service for communication.

[0009] The method in the above scheme further includes:

[0010] The first information transmitted by the base station is received on the first carrier or the first BWP; wherein...

[0011] The first information is used to instruct the terminal to use the first carrier or the first BWP for a random access procedure, and / or to instruct the terminal to use the second carrier or the second BWP for a random access procedure.

[0012] In the above scheme, the first information is used to indicate:

[0013] Both the first type of terminal and the second type of terminal use the first carrier or the first BWP for the random access process;

[0014] Both the first type of terminal and the second type of terminal undergo a random access procedure via the second carrier or the second BWP; or...

[0015] The first type of terminal uses the first carrier or the first BWP for a random access procedure, while the second type of terminal uses the designated second carrier or the second BWP for a random access procedure.

[0016] In the above scheme, the first type of terminal represents a regular terminal; the second type of terminal represents a low-capability terminal.

[0017] In the above scheme, the first information is carried in the RAR or MSG 4 sent by the base station.

[0018] In the above scheme, each of the at least two configuration groups includes at least one of the following:

[0019] The frequency of the carrier wave;

[0020] BWP frequency;

[0021] Measurement Timing Configuration (SMTC, SSB) period based on synchronization signal block.

[0022] The method in the above scheme further includes:

[0023] Receive the second information sent by the base station; wherein,

[0024] The second information is used to instruct the terminal to use the first access priority parameter; and / or to instruct the terminal to use the second access priority parameter.

[0025] In the above scheme, before receiving the second information sent by the base station, the method further includes:

[0026] Receive at least two sets of access priority parameters sent by the base station; wherein,

[0027] Each of the at least two sets of access priority parameters represents the access priority parameters configured by the network side for a specific terminal, a specific slice, or a specific service.

[0028] In the above scheme, the access priority corresponding to the first access priority parameter is higher than the access priority corresponding to the second access priority parameter; wherein,

[0029] The first access priority parameter represents the access priority parameter configured by the network side for ordinary terminals; the second access priority parameter represents the access priority parameter configured by the network side for low-capability terminals.

[0030] In the above scheme, the second information is used to indicate:

[0031] Both the first type of terminal and the second type of terminal use the first access priority parameter;

[0032] The first type of terminal uses the first access priority parameter, and the second type of terminal uses the second access priority parameter; or...

[0033] Both the first type of terminal and the second type of terminal use the second access priority parameter.

[0034] The method in the above scheme further includes:

[0035] Send third information to the base station; wherein,

[0036] The third information is used to indicate the terminal type; the third information is carried in MSG 1, MSG 3 or MSG A and sent.

[0037] In the above scheme, before sending the third information to the base station, the method further includes:

[0038] Receive the fourth information sent by the base station; wherein,

[0039] The fourth information is used to instruct the terminal to report the third information via MSG 1, MSG 3 or MSG A.

[0040] This application also provides a communication method applied to a base station, the method comprising:

[0041] Send at least two sets of configurations; among them,

[0042] Each of the at least two configurations includes carrier information or BWP information, which characterizes the carrier or BWP configured by the network side for a specific terminal, a specific slice, or a specific service for communication.

[0043] The method in the above scheme further includes:

[0044] First information is transmitted to the terminal on the first carrier or the first BWP; wherein,

[0045] The first information is used to instruct the terminal to use the first carrier or the first BWP for a random access procedure, and / or to instruct the terminal to use the second carrier or the second BWP for a random access procedure.

[0046] In the above scheme, the first information is used to indicate:

[0047] Both the first type of terminal and the second type of terminal use the first carrier or the first BWP for the random access process;

[0048] Both the first type of terminal and the second type of terminal undergo a random access procedure via the second carrier or the second BWP; or...

[0049] The first type of terminal uses the first carrier or the first BWP for random access, and the second type of terminal uses the second carrier or the second BWP for random access.

[0050] In the above scheme, the first type of terminal represents a regular terminal; the second type of terminal represents a low-capability terminal.

[0051] In the above scheme, the first information is carried in the RAR or MSG 4 sent by the base station.

[0052] In the above scheme, each of the at least two configuration groups includes at least one of the following:

[0053] The frequency of the carrier wave;

[0054] BWP frequency;

[0055] SMTC cycle.

[0056] The method in the above scheme further includes:

[0057] Send a second message to the terminal; wherein,

[0058] The second information is used to instruct the terminal to use the first access priority parameter; and / or to instruct the terminal to use the second access priority parameter.

[0059] In the above scheme, before sending the second information to the terminal, the method further includes:

[0060] Send at least two sets of access priority parameters; among which,

[0061] Each of the at least two sets of access priority parameters represents the access priority parameters configured by the network side for a specific terminal, a specific slice, or a specific service.

[0062] In the above scheme, the access priority corresponding to the first access priority parameter is higher than the access priority corresponding to the second access priority parameter; wherein,

[0063] The first access priority parameter represents the access priority parameter configured by the network side for ordinary type terminals; the second access priority parameter represents the access priority parameter configured by the network side for low-capability terminals.

[0064] In the above scheme, the second information is used to indicate:

[0065] Both the first type of terminal and the second type of terminal use the first access priority parameter;

[0066] The first type of terminal uses the first access priority parameter, and the second type of terminal uses the second access priority parameter; or...

[0067] Both the first type of terminal and the second type of terminal use the second access priority parameter.

[0068] The method in the above scheme further includes:

[0069] The terminal type is determined based on the preamble or random access opportunity (RO) resource sent by the terminal in MSG 1 or MSG A, and / or based on the third information carried in MSG 1, MSG 3 or MSG A sent by the terminal.

[0070] Configure different groups of random access resources for terminals of different terminal types; among which,

[0071] The third piece of information is used to indicate the terminal type.

[0072] In the above scheme, before the third information carried in MSG 1, MSG 3, or MSG A sent by the terminal, the method further includes:

[0073] Send the fourth piece of information to the terminal; among which,

[0074] The fourth information is used to instruct the terminal to report the third information via MSG 1, MSG 3 or MSG A.

[0075] This application also provides a communication device, including:

[0076] The first receiving unit is used to receive at least two sets of configurations sent by the base station; wherein,

[0077] Each of the at least two configurations includes carrier information or BWP information, which characterizes the carrier or BWP configured by the network side for a specific terminal, a specific slice, or a specific service for communication.

[0078] This application also provides a communication device, including:

[0079] The first transmitting unit is used to transmit at least two sets of configurations; wherein...

[0080] Each of the at least two configurations includes carrier information or BWP information, which characterizes the carrier or BWP configured by the network side for a specific terminal, a specific slice, or a specific service for communication.

[0081] This application also provides a terminal, including: a first processor and a first communication interface; wherein,

[0082] The first communication interface is used to receive at least two sets of configurations sent by the base station; wherein,

[0083] Each of the at least two configurations includes carrier information or BWP information, which characterizes the carrier or BWP configured by the network side for a specific terminal, a specific slice, or a specific service for communication.

[0084] This application also provides a base station, including: a second processor and a second communication interface; wherein,

[0085] The second communication interface is used to send at least two sets of configurations; wherein,

[0086] Each of the at least two configurations includes carrier information or BWP information, which characterizes the carrier or BWP configured by the network side for a specific terminal, a specific slice, or a specific service for communication.

[0087] This application also provides a terminal, a first processor, and a first memory for storing computer programs capable of running on the processor.

[0088] Wherein, when the first processor is used to run the computer program, it executes the steps of any of the methods described above on the terminal side.

[0089] This application also provides a base station, including: a second processor and a second memory for storing a computer program capable of running on the processor.

[0090] Wherein, when the second processor is used to run the computer program, it executes the steps of any of the methods described above for the base station side.

[0091] This application also provides a storage medium storing a computer program thereon, which, when executed by a processor, implements the steps of any of the methods described above.

[0092] The communication method, apparatus, terminal, base station, and storage medium provided in this application embodiment include a terminal receiving at least two sets of configurations sent by the base station. Each of the at least two sets of configurations includes carrier information or BWP information. The carrier information or BWP information represents a carrier or BWP configured by the network side for a specific terminal to communicate, or a carrier or BWP configured by the network side for a specific slice or specific service. Based on the at least two sets of random access resources configured by the base station, during the random access process, a specific terminal can select the corresponding random access resource for random access, or the terminal can select the corresponding random access resource for random access according to the corresponding slice or service. Based on the above scheme, when a random access conflict occurs, it can support low-capacity terminals or terminals corresponding to low-priority services to switch BWPs, thereby distinguishing terminal capabilities or service priorities when resolving random access conflicts, ensuring priority access for high-capacity terminals or high-priority services, thus more effectively resolving random access conflicts and ensuring the communication efficiency of the terminal. Attached Figure Description

[0093] Figure 1 This is a schematic flowchart of a communication method according to an embodiment of this application;

[0094] Figure 2 This is a schematic diagram of another communication method according to an embodiment of this application;

[0095] Figure 3 This is a second information transmission example diagram of the communication method according to an embodiment of this application;

[0096] Figure 4 This is a schematic diagram of a communication device structure according to an embodiment of this application;

[0097] Figure 5 This is a schematic diagram of another communication device structure according to an embodiment of this application;

[0098] Figure 6 This is a schematic diagram of the terminal structure according to an embodiment of this application;

[0099] Figure 7 This is a schematic diagram of the base station structure according to an embodiment of this application. Detailed Implementation

[0100] The contention-based random access procedure consists of four steps: Step 1 corresponds to MSG 1, where the terminal sends a preamble to the network; Step 2 corresponds to MSG 2, where the network sends a RAR to the terminal; Step 3, the terminal sends a cancellation MSG 3 to the network; and Step 4, the network sends MSG 4 to the terminal. The purpose of the interaction between the terminal and the network using MSG 3 and MSG 4 is to resolve conflicts caused by multiple terminals within the cell potentially sending the same preamble simultaneously. Alternatively, a two-step random access procedure can be used, where MSG A corresponds to MSG 1 and MSG 3 in the four-step random access procedure and is sent from the terminal to the network; and MSG B corresponds to MSG 2 and MSG 4 in the four-step random access procedure and is sent from the network to the terminal. Specifically, MSG A contains a preamble and a terminal identifier (ID), or it contains a preamble, a terminal ID, and a data packet. In the four-step random access process, the terminal ID can be the terminal's resume ID, used to restore the Radio Resource Control (RRC) link, or it can be a generated random number; in the two-step random access process, the terminal ID can be the resume ID or the Cell-Radio Network Temporary Identifier (C-RNTI).

[0101] During random access, the terminal completes random access based on the random access resources configured on the network side. However, in related technologies, the configuration methods for random access resources cannot effectively avoid random access conflicts.

[0102] Based on this, embodiments of this application provide a communication method, apparatus, terminal, base station, and storage medium. The terminal receives at least two sets of configurations sent by the base station. Each of the at least two sets of configurations includes carrier information or BWP information. The carrier information or BWP information represents a carrier or BWP configured by the network side for a specific terminal to communicate, or a carrier or BWP configured by the network side for a specific slice or specific service. Based on the at least two sets of random access resources configured by the base station, during the random access process, a specific terminal can select the corresponding random access resource for random access, or the terminal can select the corresponding random access resource according to the corresponding slice or service for random access, thereby effectively avoiding random access conflicts between terminals of different types or corresponding to different slices or services.

[0103] The present application will now be described in further detail with reference to the accompanying drawings and embodiments.

[0104] This application provides a communication method applied to a terminal, as shown in the embodiments below. Figure 1 The method includes:

[0105] Step 101: Receive at least two sets of configurations sent by the base station.

[0106] Each of the at least two configurations includes carrier information or BWP information, which represents the carrier or BWP configured by the network side for a specific terminal, a specific slice, or a specific service for communication.

[0107] In practical applications, base stations can broadcast at least two sets of carrier configurations or BWP configurations through system information broadcasting. Here, the broadcast configuration represents the carrier or BWP configured by the network side for a specific terminal to communicate, or the carrier or BWP configured by the network side for a specific slice or service. For example, if a base station broadcasts three sets of configurations, each corresponding to a large, medium, or small bandwidth level BWP, and assuming each bandwidth level BWP corresponds to a terminal type, then in practical applications, terminals of the corresponding type can choose the BWP matching their terminal type for random access. If each bandwidth level BWP corresponds to a slice type or service type, then terminals selecting the corresponding slice can choose the BWP matching their slice type for random access, and terminals requesting access to the corresponding service can choose the BWP matching their service type for random access. Thus, based on at least two sets of random access resources configured by the base station, during the random access process, a specific terminal can choose the corresponding random access resource for random access, or the terminal can choose the corresponding random access resource based on the corresponding slice or service, thereby effectively avoiding random access conflicts between terminals of different types or corresponding to different slices or services.

[0108] In one embodiment, each of the at least two sets of configurations includes at least one of the following:

[0109] The frequency of the carrier wave;

[0110] BWP frequency;

[0111] SMTC cycle.

[0112] In practical applications, after a terminal initiates random access on the initial BWP, the base station can redirect terminals of a specific type, terminals selecting a specific slice, or terminals requesting a specific service to the carrier or BWP specified in at least two of the above-mentioned configurations. Based on this, in one embodiment, the method further includes:

[0113] Receive the first information sent by the base station on the first carrier or the first BWP.

[0114] The first information is used to instruct the terminal to use the first carrier or the first BWP for a random access procedure, and / or to instruct the terminal to use the second carrier or the second BWP for a random access procedure.

[0115] In one embodiment, the first information is carried in the RAR or MSG 4 sent by the base station and sent to the terminal.

[0116] In practical applications, the first information can be regarded as a carrier or BWP change indication, instructing the terminal to continue the random access procedure using the current carrier or BWP, or instructing the terminal to redirect to a carrier or BWP that matches the terminal type, slice type or service type for random access procedure based on at least two of the above configurations.

[0117] In one embodiment, different carrier or BWP change indications can be given for different types of terminals using the first information. That is, the first information is used to indicate:

[0118] Both the first type of terminal and the second type of terminal use the first carrier or the first BWP for the random access process;

[0119] Both the first type of terminal and the second type of terminal undergo a random access procedure via the second carrier or the second BWP; or...

[0120] The first type of terminal uses the first carrier or the first BWP for random access, and the second type of terminal uses the second carrier or the second BWP for random access.

[0121] In one embodiment, the first type of terminal represents a regular terminal, and the second type of terminal represents 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 understood that the first type of terminal and the second type of terminal can be distinguished based on the slice selected by the terminal or the service requested by the terminal.

[0122] Taking the differentiation of different types of terminals based on terminal capabilities as an example, in practical applications, the first information can be bit information. For instance, when the first information is "00", it instructs both ordinary terminals and low-capability terminals to continue the random access procedure using the current carrier or BWP; when the first information is "01", it instructs ordinary terminals to continue the random access procedure using the current carrier or BWP, while low-capability terminals are redirected to the carrier or BWP specified for them in the configuration; when the first information is "10", it instructs ordinary terminals to redirect to the carrier or BWP configured for them in the configuration, and low-capability terminals are redirected to the carrier or BWP configured for them in the configuration. Furthermore, if the RAR or MSG 4 sent by the base station does not carry the aforementioned first information, it can be understood that both ordinary terminals and low-capability terminals continue the random access procedure using the current carrier or BWP.

[0123] Through the above scheme, after a terminal initiates random access on the initial BWP, the base station can redirect terminals of specific types, or terminals corresponding to specific slice types or specific service types, to other BWPs. Based on this, when random access conflicts occur, the above scheme can support low-capability terminals or terminals corresponding to low-priority services to switch BWPs. This distinguishes between terminal capabilities or service priorities when resolving random access conflicts, ensuring priority access for high-capability terminals or high-priority services, thus resolving random access conflicts more effectively. It should be noted that the other BWPs to which the terminal is redirected are not the SSB defined by the cell, i.e., not the initial BWP. These redirected BWPs do not have random access channels, but can be used for load balancing.

[0124] In related technologies, when a random access conflict occurs during contention-based random access, the priority handling during access does not differentiate between terminal types, resulting in low-capability terminals having higher access priority and completing random access before ordinary terminals.

[0125] Based on this, in one embodiment, the method further includes:

[0126] Receive the second information sent by the base station.

[0127] The second information is used to instruct the terminal to use the first access priority parameter; and / or to instruct the terminal to use the second access priority parameter.

[0128] In one embodiment, the second information may be carried on MSG2 or MSG B sent by the base station and sent to the terminal.

[0129] In practical applications, the second information can serve as a backoff indication, instructing the terminal to use the currently used access priority parameters (i.e., the originally configured access priority parameters), or instructing the terminal to use a different set of configured access priority parameters. Specifically, different backoff indications can be specified for different types of terminals using the second information. In other words, the second information can be used to indicate:

[0130] Both the first type of terminal and the second type of terminal use the first access priority parameter;

[0131] The first type of terminal uses the first access priority parameter, and the second type of terminal uses the second access priority parameter; or...

[0132] Both the first type of terminal and the second type of terminal use the second access priority parameter.

[0133] In one embodiment, the first type of terminal represents a regular terminal, and the second type of terminal represents 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 understood that the first type of terminal and the second type of terminal can be distinguished based on the slice selected by the terminal or the service requested by the terminal.

[0134] In practical applications, the base station pre-sends at least two sets of access priority parameters to the terminal via system information. In one embodiment, before receiving the second information sent by the base station, the method further includes:

[0135] Receive at least two sets of access priority parameters sent by the base station.

[0136] Each of the at least two sets of access priority parameters represents the access priority parameters configured by the network side for a specific terminal, a specific slice, or a specific service.

[0137] Here, access priority parameters include random access step size parameters and / or backoff time parameters, used to configure the terminal's access priority. For example, a terminal configured with a higher random access step size and / or a shorter backoff time has a higher access priority and will complete random access first. In practical applications, the base station broadcasts at least two sets of carrier configurations or BWP configurations through system information broadcasting. For example, the base station broadcasts two sets of access priority parameters: the first set represents a lower random access step size or a longer backoff time, and the second set represents a higher random access step size or a shorter backoff 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.

[0138] 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.

[0139] Wherein, the first access priority parameter represents the access priority parameter specified by the network side for ordinary terminals; the second access priority parameter represents the access priority parameter specified by the network side for low-capability terminals.

[0140] Here, in order to ensure that ordinary terminals have a higher access priority than low-capability terminals, the network side configures ordinary terminals with a transmission priority access parameter and / or configures low-capability terminals with a transmission lag access priority parameter. In this way, in the event of a random access conflict, low-capability terminals can fall back to ensure that ordinary terminals have priority access.

[0141] By configuring specified access priority parameters for low-capability terminals through the base station—for example, configuring a lower random access step size or a longer backoff time—the low-capability terminal can achieve a more delayed access when a random access collision occurs between a normal terminal and a low-capability terminal, thus avoiding the normal terminal. In practical applications, the second information can be bit information. For example, when the second information is "00", it indicates that both the normal terminal and the low-capability terminal use the first access priority parameter; when the second information is "01", it indicates that the normal terminal uses the first access priority parameter and the low-capability terminal uses the configured second access priority parameter; when the second information is "10", it indicates that both the normal terminal and the low-capability terminal use the second access priority parameter. Furthermore, if the MSG 2 or MSG B sent by the base station does not carry the above-mentioned second information, it can be understood that 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 parameter according to the corresponding bit identifier.

[0142] In this embodiment, the terminal informs the base station of its terminal type. In practical applications, the terminal can inform the base station of its terminal type through explicit indication. Therefore, in one embodiment, the method further includes:

[0143] Send third information to the base station.

[0144] The third information is used to indicate the terminal type; the third information is carried in MSG 1, MSG 3 or MSGA and sent.

[0145] In one embodiment, before sending the third information to the base station, the method further includes:

[0146] Receive the fourth information sent by the base station.

[0147] The fourth information is used to instruct the terminal to report the third information via MSG 1, MSG 3 or MSG A.

[0148] Here, before the terminal reports its terminal type, the base station sends a fourth piece of information to the terminal. This fourth piece of information indicates which method the terminal should use to report its terminal type. In practice, the method indicated in the fourth piece of information can be one of the following three: the terminal reports its terminal type via MSG 1; the terminal reports its terminal type via MSG 3; or the terminal reports its terminal type via MSG A.

[0149] Furthermore, in one embodiment, the terminal can also inform the base station of its terminal type via implicit indication. Specifically, the base station first sends at least one set of preambles or random access opportunity (RO) resources to the terminal. For example, the base station sends 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 procedure on the corresponding resource based on its own terminal type according to the two sets of preambles or RO resources sent by the base station. Then, the base station can determine the terminal type by receiving MSG 1 or MSG A sent by the terminal on the corresponding resource.

[0150] Furthermore, in this embodiment, the base station can also send a first threshold and a second threshold to the terminal. The first threshold corresponds to a first type of terminal (ordinary terminal). When the signal measurement value of the first type of terminal to the serving cell is greater than the first threshold, a two-step random access is used; when the signal measurement value of the first type of terminal to the serving cell is less than or equal to the first threshold, a four-step random access is used. The second threshold corresponds to a second type of terminal (low-capability terminal). When the signal measurement value of the second type of terminal to the serving cell is greater than the second threshold, a two-step random access is used; when the signal measurement value of the second type of terminal to the serving cell is less than or equal to the second threshold, a four-step random access is used.

[0151] It should be noted that the uplink capability of the second type of terminal is weaker than that of the first type of terminal. Therefore, the coverage of the second type of terminal using two-step random access is worse. Thus, the second threshold corresponding to the second type of terminal is higher than the first threshold corresponding to the first type of terminal.

[0152] Correspondingly, embodiments of this application also provide a communication method applied to a base station. For example... Figure 2 As shown, the method includes:

[0153] Step 201: Broadcast at least two configurations.

[0154] Each of the at least two configurations includes carrier information or BWP information, which represents the carrier or BWP assigned by the network side for a specific terminal, slice, or service to communicate.

[0155] In practical applications, base stations broadcast at least two sets of carrier configurations or BWP configurations through system information broadcasting. For example, a base station might broadcast three sets of configurations, each corresponding to a large, medium, or small bandwidth level BWP. Assuming each bandwidth level BWP corresponds to a specific terminal type, in practical applications, terminals of that type can choose the BWP matching their terminal type for random access. If each bandwidth level BWP corresponds to a slice type or service type, then terminals selecting a slice can choose the BWP matching their slice type for random access, and terminals requesting access to a service can choose the BWP matching their service type for random access. Thus, based on at least two sets of random access resources configured by the base station, during the random access process, a specific terminal can choose the corresponding random access resource for random access, or the terminal can choose the corresponding random access resource based on the slice or service. This effectively avoids random access conflicts between terminals of different types or those corresponding to different slices or services.

[0156] In one embodiment, each of the at least two sets of configurations includes at least one of the following:

[0157] The frequency of the carrier wave;

[0158] BWP frequency;

[0159] SMTC cycle.

[0160] In one embodiment, the method further includes:

[0161] Send the first message to the terminal.

[0162] The first information is used to instruct the terminal to use the current carrier or BWP for a random access procedure, and / or instruct the terminal to use a specified carrier or BWP for a random access procedure.

[0163] In this way, after the terminal initiates random access on 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 the carrier or BWP specified in at least two of the above configurations.

[0164] In one embodiment, the first information is carried in the RAR or MSG 4 sent by the base station and sent to the terminal. The first information can be regarded as a carrier or BWP change indication, instructing the terminal to continue the random access procedure using the current carrier or BWP, or instructing the terminal to redirect to a specified carrier or BWP that matches the terminal type, slice type or service type for random access procedure based on the above at least two sets of configurations.

[0165] In one embodiment, different carrier or BWP change indications can be given for different types of terminals using the first information. That is, the first information is used to indicate:

[0166] Both Type 1 and Type 2 terminals use the current carrier or BWP for the random access process.

[0167] Both Type I and Type II terminals undergo a random access procedure to a designated carrier or BWP; or...

[0168] Type 1 terminals use the current carrier or BWP for random access procedures, while Type 2 terminals use a designated carrier or BWP for random access procedures.

[0169] In one embodiment, the first type of terminal represents a regular terminal, and the second type of terminal represents 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 understood that the first type of terminal and the second type of terminal can be distinguished based on the slice selected by the terminal or the service requested by the terminal.

[0170] Taking the differentiation of different types of terminals based on terminal capabilities as an example, in practical applications, the first information can be bit information. For instance, when the first information is "00", it instructs both ordinary terminals and low-capability terminals to continue the random access procedure using the current carrier or BWP; when the first information is "01", it instructs ordinary terminals to continue the random access procedure using the current carrier or BWP, while low-capability terminals are redirected to the carrier or BWP specified for them in the configuration; when the first information is "10", it instructs both ordinary terminals to redirect to the carrier or BWP specified for them in the configuration. Furthermore, if the RAR or MSG 4 sent by the base station does not carry the aforementioned first information, it can be understood that both ordinary terminals and low-capability terminals continue the random access procedure using the current carrier or BWP.

[0171] With the above scheme, after the terminal initiates random access on the 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 conflict occurs, the above scheme 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 conflicts, ensuring priority access for high-capability terminals or high-priority services, and thus resolving random access conflicts more effectively.

[0172] In related technologies, when a random access conflict occurs during contention-based random access, the priority handling during access does not differentiate between terminal types, resulting in low-capability terminals having higher access priority and completing random access before ordinary terminals.

[0173] Based on this, in one embodiment, the method further includes:

[0174] Send the second message to the terminal.

[0175] The second information is used to instruct the terminal to use the current access priority parameters; and / or to instruct the terminal to use the specified access priority parameters.

[0176] In one embodiment, the second information may be carried on MSG2 or MSG B sent by the base station and sent to the terminal.

[0177] In practical applications, the second information can serve as a backoff indication, instructing the terminal to use the current access priority parameters, i.e., the originally configured access priority parameters, or instructing the terminal to use specified access priority parameters. Specifically, different backoff indications can be specified for different types of terminals using the second information. In other words, the second information can be used to indicate:

[0178] Both Type 1 and Type 2 terminals use the current access priority parameters;

[0179] The first type of terminal uses the current access priority parameters, and the second type of terminal uses the specified access priority parameters; or...

[0180] Both Type 1 and Type 2 terminals use the specified access priority parameters.

[0181] In practical applications, the base station pre-broadcasts at least two sets of access priority parameters to the terminal via system information. In one embodiment, before sending the second information to the terminal, the method further includes:

[0182] Broadcast at least two sets of access priority parameters.

[0183] Each of the at least two sets of access priority parameters represents a specific terminal, slice, or service access priority parameter on the network side.

[0184] Here, access priority parameters include random access step size parameters and / or backoff time parameters, used to configure the terminal's access priority. For example, a terminal configured with a higher random access step size and / or a shorter backoff time has a higher access priority and will complete random access first. In practical applications, the base station broadcasts at least two sets of carrier configurations or BWP configurations through system information broadcasting. For example, the base station broadcasts two sets of access priority parameters: the first set represents a lower random access step size or a longer backoff time, and the second set represents a higher random access step size or a shorter backoff time. 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, achieving a more delayed access. Furthermore, the base station can also carry the at least two sets of access priority parameters in the RAR. See also Figure 3 In the RAR (Remote Access Response) sent by the base station to the terminal, "R" is a reserved bit. The "R" bit is used to instruct low-capability terminals to use a longer backoff time, or to instruct them not to initiate random access again for a fixed period of time. As an implementation example, after receiving the second information from the base station, the low-capability terminal reads the backoff time indicated on the "R" bit and uses a value longer than the indicated backoff time as the backoff time. For example, it can use a backoff time that is a multiple of the indicated backoff time, or add a certain amount of time to the indicated backoff time to obtain a longer backoff time. For ordinary terminals, the backoff time indicated on the "R" bit is used directly.

[0185] 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.

[0186] Wherein, the first access priority parameter represents the access priority parameter specified by the network side for ordinary type terminals; the second access priority parameter represents the access priority parameter specified by the network side for low-capability terminals.

[0187] Here, in order to ensure that ordinary terminals have a higher access priority than low-capability terminals, the network side configures ordinary terminals with a transmission priority access parameter and / or configures low-capability terminals with a transmission lag access priority parameter. In this way, in the event of a random access conflict, low-capability terminals can fall back to ensure that ordinary terminals have priority access.

[0188] By configuring specified access priority parameters for low-capability terminals through the base station—for example, configuring a lower random access step size or a longer backoff time—the low-capability terminal can achieve a more delayed access when a random access collision occurs between a normal terminal and a low-capability terminal, thus avoiding the normal terminal. In practical applications, the second information can be bit information. For example, when the second information is "00", it indicates that both the normal terminal and the low-capability terminal use the current access priority parameters; when 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; when the second information is "10", it indicates that both the normal terminal and the low-capability terminal use the access priority parameters specified in the configuration. Furthermore, if the MSG 2 or MSG B sent by the base station does not carry the above-mentioned second information, it can be understood that 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 according to the corresponding bit identifier.

[0189] In one embodiment, the method further includes:

[0190] The terminal type is determined based on the preamble or random access opportunity (RO) resource sent by the terminal in MSG 1 or MSG A, and / or based on the third information carried in MSG 1, MSG 3 or MSG A sent by the terminal.

[0191] Configure different groups of random access resources for different types of terminals; among them,

[0192] The third piece of information is used to indicate the terminal type.

[0193] In practical applications, the terminal can explicitly indicate its type to the base station. In one embodiment, the method further includes:

[0194] The terminal type is determined based on the third information carried in MSG 1, MSG 3, or MSG A sent by the terminal.

[0195] The third piece of information is used to indicate the terminal type.

[0196] In one embodiment, before the third information carried in MSG 1, MSG 3, or MSG A transmitted based on the terminal, the method further includes:

[0197] Send the fourth message to the terminal.

[0198] The fourth information is used to instruct the terminal to report the third information via MSG 1, MSG 3 or MSG A.

[0199] Here, before the terminal reports its terminal type, the base station sends a fourth piece of information to the terminal. This fourth piece of information indicates which method the terminal should use to report its terminal type. In practice, the method indicated in the fourth piece of information can be one of the following three: the terminal reports its terminal type via MSG 1; the terminal reports its terminal type via MSG 3; or the terminal reports its terminal type via MSG A.

[0200] Furthermore, the terminal can also inform the base station of its terminal type through implicit indication. Specifically, the base station first sends at least one set of preamble or RO resources to the terminal. For example, the base station sends two sets of preamble or RO resources, where the first set corresponds to a normal terminal configuration and the second set corresponds to a low-capability terminal configuration. Based on the two sets of preamble or RO resources sent by the base station, the terminal selects the corresponding resource to initiate a random access procedure according to its own terminal type. Then, the base station can determine the terminal type by receiving MSG 1 or MSG A sent by the terminal on the corresponding resource. Based on this, the method also includes:

[0201] The terminal type is determined based on the preamble (MSG 1 or MSG A) sent by the terminal or random access opportunity (RO) resources.

[0202] Furthermore, in this embodiment, the base station can also send a first threshold and a second threshold to the terminal. The first threshold corresponds to a first type of terminal (ordinary terminal). When the signal measurement value of the first type of terminal to the serving cell is greater than the first threshold, a two-step random access is used; when the signal measurement value of the first type of terminal to the serving cell is less than or equal to the first threshold, a four-step random access is used. The second threshold corresponds to a second type of terminal (low-capability terminal). When the signal measurement value of the second type of terminal to the serving cell is greater than the second threshold, a two-step random access is used; when the signal measurement value of the second type of terminal to the serving cell is less than or equal to the second threshold, a four-step random access is used.

[0203] It should be noted that the uplink capability of the second type of terminal is weaker than that of the first type of terminal. Therefore, the coverage of the second type of terminal using two-step random access is worse. Thus, the second threshold corresponding to the second type of terminal is higher than the first threshold corresponding to the first type of terminal.

[0204] Based on the embodiments of this application, during the random access process, a specific terminal can select a corresponding random access resource for random access, or the terminal can select a corresponding random access resource based on the corresponding slice or service for random access, thereby effectively avoiding random access conflicts between terminals of different types or corresponding to different slices or services. Furthermore, when terminals of different types or corresponding to different slices or services are connected, lower-capacity terminals or lower-priority services can achieve slower access, thus avoiding access for ordinary terminals or high-priority services.

[0205] To implement the method of the embodiments of this application, the embodiments of this application also provide a communication device, which is disposed on a terminal, such as... Figure 4 As shown, the device includes:

[0206] The first receiving unit 401 is used to receive at least two sets of configurations broadcast by the base station; wherein,

[0207] Each of the at least two configuration sets contains carrier information or BWP information, which characterizes the carrier or BWP assigned by the network side for a specific terminal, slice, or service to communicate.

[0208] In one embodiment, the device further includes:

[0209] The second receiving unit is used to receive the first information sent by the base station; wherein...

[0210] The first information is used to instruct the terminal to perform a random access procedure using the current carrier or BWP, and / or to instruct the terminal to perform a random access procedure to a specified carrier or BWP.

[0211] In one embodiment, the first information is used to indicate:

[0212] Both Type 1 and Type 2 terminals use the current carrier or BWP for the random access process.

[0213] Both Type I and Type II terminals undergo a random access procedure to a designated carrier or BWP; or...

[0214] Type 1 terminals use the current carrier or BWP for random access procedures, while Type 2 terminals use a designated carrier or BWP for random access procedures.

[0215] In one embodiment, the first type of terminal represents a normal terminal; the second type of terminal represents a low-capability terminal.

[0216] In one embodiment, the first information is carried in the RAR or MSG 4 transmitted by the base station.

[0217] In one embodiment, each of the at least two sets of configurations includes at least one of the following:

[0218] The frequency of the carrier wave;

[0219] BWP frequency;

[0220] SMTC cycle.

[0221] In one embodiment, the device further includes:

[0222] The third receiving unit is used to receive the second information sent by the base station; wherein...

[0223] The second information is used to instruct the terminal to use the current access priority parameters; and / or to instruct the terminal to use the specified access priority parameters.

[0224] In one embodiment, the device further includes:

[0225] The fourth receiving unit is configured to receive at least two sets of access priority parameters broadcast by the base station before receiving the second information sent by the base station; wherein,

[0226] Each of the at least two sets of access priority parameters represents the access priority parameters specified by the network side for a specific terminal, a specific slice, or a specific service.

[0227] 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; wherein,

[0228] The first access priority parameter represents the access priority parameter specified by the network side for ordinary terminals; the second access priority parameter represents the access priority parameter specified by the network side for low-capability terminals.

[0229] In one embodiment, the second information is used to indicate:

[0230] Both Type 1 and Type 2 terminals use the current access priority parameters;

[0231] The first type of terminal uses the current access priority parameters, and the second type of terminal uses the specified access priority parameters; or...

[0232] Both Type 1 and Type 2 terminals use the specified access priority parameters.

[0233] In one embodiment, the device further includes:

[0234] The first transmitting unit is used to transmit third information to the base station; wherein...

[0235] The third information is used to indicate the terminal type; the third information is carried in MSG 1, MSG 3 or MSG A and sent.

[0236] In one embodiment, the device further includes:

[0237] The fifth receiving unit is configured to receive fourth information sent by the base station before sending third information to the base station; wherein,

[0238] The fourth information is used to instruct the terminal to report the third information via MSG 1, MSG 3 or MSG A.

[0239] In practical applications, 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 implemented by the communication interface in the communication device.

[0240] To implement the method of the embodiments of this application, the embodiments of this application also provide a communication device, which is installed on a base station, such as... Figure 5 As shown, the device includes:

[0241] The first broadcast unit 501 is used to broadcast at least two sets of configurations; wherein...

[0242] Each of the at least two configuration sets contains carrier information or BWP information, which characterizes the carrier or BWP assigned by the network side for a specific terminal, slice, or service to communicate.

[0243] In one embodiment, the device further includes:

[0244] The second sending unit is used to send first information to the terminal; wherein...

[0245] The first information is used to instruct the terminal to perform a random access procedure using the current carrier or BWP, and / or to instruct the terminal to perform a random access procedure to a specified carrier or BWP.

[0246] In one embodiment, the first information is used to indicate:

[0247] Both Type 1 and Type 2 terminals use the current carrier or BWP for the random access process.

[0248] Both Type I and Type II terminals undergo a random access procedure to a designated carrier or BWP; or...

[0249] Type 1 terminals use the current carrier or BWP for random access procedures, while Type 2 terminals use a designated carrier or BWP for random access procedures.

[0250] In one embodiment, the first type of terminal represents a normal terminal; the second type of terminal represents a low-capability terminal.

[0251] In one embodiment, the first information is carried in the RAR or MSG 4 transmitted by the base station.

[0252] In one embodiment, each of the at least two sets of configurations includes at least one of the following:

[0253] The frequency of the carrier wave;

[0254] BWP frequency;

[0255] SMTC cycle.

[0256] In one embodiment, the device further includes:

[0257] The third sending unit is used to send second information to the terminal; wherein...

[0258] The second information is used to instruct the terminal to use the current access priority parameters; and / or to instruct the terminal to use the specified access priority parameters.

[0259] In one embodiment, the device further includes:

[0260] The second broadcast unit is used to broadcast at least two sets of access priority parameters before sending the second information to the terminal; wherein...

[0261] Each of the at least two sets of access priority parameters represents the network side's access priority parameters for a specific terminal, a specific slice, or a specific service.

[0262] 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; wherein,

[0263] The first access priority parameter represents the access priority parameter specified by the network side for ordinary type terminals; the second access priority parameter represents the access priority parameter specified by the network side for low-capability terminals.

[0264] In one embodiment, the second information is used to indicate:

[0265] Both Type 1 and Type 2 terminals use the current access priority parameters;

[0266] The first type of terminal uses the current access priority parameters, and the second type of terminal uses the specified access priority parameters; or...

[0267] Both Type 1 and Type 2 terminals use the specified access priority parameters.

[0268] In one embodiment, the device further includes:

[0269] The determining unit is used to determine the terminal type based on the preamble or random access opportunity (RO) resource sent by the terminal in MSG 1 or MSG A, and / or based on the third information carried in MSG 1, MSG 3 or MSG A sent by the terminal.

[0270] The configuration unit is used to configure different groups of random access resources for different types of terminals.

[0271] In one embodiment, the device further includes:

[0272] The fourth sending unit is used to send fourth information to the terminal; wherein,

[0273] The fourth information is used to instruct the terminal to report the third information via MSG 1, MSG 3 or MSG A.

[0274] In practical applications, the first broadcast unit 501, the second sending unit, the third sending unit, the second broadcast unit, and the fourth sending unit can be implemented by the communication interface in the random access device; the configuration unit and the determination unit can be implemented by the processor in the communication device.

[0275] It should be noted that the communication device provided in the above embodiments is only illustrated by the division of the above program modules when performing random access. In actual applications, the above processing can be assigned to different program modules as needed, that is, the internal structure of the device can be divided into different program modules to complete all or part of the processing described above. In addition, the communication device and communication method embodiments provided in the above embodiments belong to the same concept, and their specific implementation process can be found in the method embodiments, which will not be repeated here.

[0276] Based on the hardware implementation of the above program modules, and in order to implement the terminal-side method of the embodiments of this application, the embodiments of this application also provide a terminal, such as... Figure 6 As shown, terminal 600 includes:

[0277] The first communication interface 601 is capable of exchanging information with other network nodes;

[0278] The first processor 602 is connected to the first communication interface 601 to enable information interaction with other network nodes and to execute the methods provided by one or more of the aforementioned terminal-side technical solutions when running a computer program. The computer program is stored in the first memory 603.

[0279] Specifically, the first communication interface 601 is used to receive at least two sets of configurations broadcast by the base station; wherein,

[0280] Each of the at least two configuration sets contains carrier information or BWP information, which characterizes the carrier or BWP assigned by the network side for a specific terminal, slice, or service to communicate.

[0281] In one embodiment, the first communication interface 601 is further configured to:

[0282] Receive the first information sent by the base station; wherein,

[0283] The first information is used to instruct the terminal to perform a random access procedure using the current carrier or BWP, and / or to instruct the terminal to perform a random access procedure to a specified carrier or BWP.

[0284] In one embodiment, the first information is used to indicate:

[0285] Both Type 1 and Type 2 terminals use the current carrier or BWP for the random access process.

[0286] Both Type I and Type II terminals undergo a random access procedure to a designated carrier or BWP; or...

[0287] Type 1 terminals use the current carrier or BWP for random access procedures, while Type 2 terminals use a designated carrier or BWP for random access procedures.

[0288] In one embodiment, the first type of terminal represents a normal terminal; the second type of terminal represents a low-capability terminal.

[0289] In one embodiment, the first information is carried in the RAR or MSG 4 transmitted by the base station.

[0290] In one embodiment, each of the at least two sets of configurations includes at least one of the following:

[0291] The frequency of the carrier wave;

[0292] BWP frequency;

[0293] SMTC cycle.

[0294] In one embodiment, the first communication interface 601 is further configured to:

[0295] Receive the second information sent by the base station; wherein,

[0296] The second information is used to instruct the terminal to use the current access priority parameters; and / or to instruct the terminal to use the specified access priority parameters.

[0297] 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 sent by the base station; wherein,

[0298] Each of the at least two sets of access priority parameters represents the access priority parameters specified by the network side for a specific terminal, a specific slice, or a specific service.

[0299] 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; wherein,

[0300] The first access priority parameter represents the access priority parameter specified by the network side for ordinary terminals; the second access priority parameter represents the access priority parameter specified by the network side for low-capability terminals.

[0301] In one embodiment, the second information is used to indicate:

[0302] Both Type 1 and Type 2 terminals use the current access priority parameters;

[0303] The first type of terminal uses the current access priority parameters, and the second type of terminal uses the specified access priority parameters; or...

[0304] Both Type 1 and Type 2 terminals use the specified access priority parameters.

[0305] In one embodiment, the first communication interface 601 is further configured to:

[0306] Send third information to the base station; wherein,

[0307] The third information is used to indicate the terminal type; the third information is carried in MSG 1, MSG 3 or MSG A and sent.

[0308] In one embodiment, the first communication interface 601 is further configured to: receive fourth information sent by the base station before sending third information to the base station; wherein,

[0309] The fourth information is used to instruct the terminal to report the third information via MSG 1, MSG 3 or MSG A.

[0310] It should be noted that the specific processing procedures of the first processor 602 and the first communication interface 601 can be understood by referring to the above method.

[0311] Of course, in practical applications, the various components in terminal 600 are coupled together through bus system 604. It can be understood that bus system 604 is used to implement communication between these components. In addition to a data bus, bus system 604 also includes a power bus, a control bus, and a status signal bus. However, for clarity, in... Figure 6 The general designated all buses as Bus System 604.

[0312] The first memory 603 in this embodiment is used to store various types of data to support the operation of the terminal 600. Examples of such data include any computer program used to operate on the terminal 600.

[0313] The methods disclosed in the above embodiments of this application can be applied to the first processor 602, or implemented by the first processor 602. The first processor 602 may be an integrated circuit chip with signal processing capabilities. In the implementation process, each step of the above method can be completed by the integrated logic circuit of the hardware or by instructions in the form of software in the first processor 602. The first processor 602 may be a general-purpose processor, a digital signal processor (DSP), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The first processor 602 can implement or execute the methods, steps, and logic block diagrams disclosed in the embodiments of this application. The general-purpose processor may be a microprocessor or any conventional processor, etc. The steps of the methods disclosed in the embodiments of this application can be directly reflected as being executed by a hardware decoding processor, or being executed by a combination of hardware and software modules in the decoding processor. The software modules may be located in a storage medium, which is located in the first memory 603. The first processor 602 reads the information in the first memory 603 and completes the steps of the aforementioned method in combination with its hardware.

[0314] In an exemplary embodiment, terminal 600 may be 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, microcontrollers (MCUs), microprocessors, or other electronic components to perform the aforementioned method.

[0315] Based on the hardware implementation of the above program modules, and in order to implement the base station-side method of the embodiments of this application, the embodiments of this application also provide a base station, such as... Figure 7 As shown, the base station 700 includes:

[0316] The second communication interface 701 is capable of exchanging information with other network nodes;

[0317] The second processor 702 is connected to the second communication interface 701 to enable information interaction with other network nodes. When running a computer program, it executes the methods provided by one or more technical solutions on the base station side. The computer program is stored in the second memory 703.

[0318] Specifically, the second communication interface 701 is used for:

[0319] The broadcast requires at least two configurations; among which,

[0320] Each of the at least two configuration sets contains carrier information or BWP information, which characterizes the carrier or BWP assigned by the network side for a specific terminal, slice, or service to communicate.

[0321] In one embodiment, the second communication interface 701 is further configured to:

[0322] Send the first message to the terminal; among which,

[0323] The first information is used to instruct the terminal to perform a random access procedure using the current carrier or BWP, and / or to instruct the terminal to perform a random access procedure to a specified carrier or BWP.

[0324] In one embodiment, the first information is used to indicate:

[0325] Both Type 1 and Type 2 terminals use the current carrier or BWP for the random access process.

[0326] Both Type I and Type II terminals undergo a random access procedure to a designated carrier or BWP; or...

[0327] Type 1 terminals use the current carrier or BWP for random access procedures, while Type 2 terminals use a designated carrier or BWP for random access procedures.

[0328] In one embodiment, the first type of terminal represents a normal terminal; the second type of terminal represents a low-capability terminal.

[0329] In one embodiment, the first information is carried in the RAR or MSG 4 transmitted by the base station.

[0330] In one embodiment, each of the at least two sets of configurations includes at least one of the following:

[0331] The frequency of the carrier wave;

[0332] BWP frequency;

[0333] SMTC cycle.

[0334] In one embodiment, the second communication interface 701 is further configured to:

[0335] Send a second message to the terminal; wherein,

[0336] The second information is used to instruct the terminal to use the current access priority parameters; and / or to instruct the terminal to use the specified access priority parameters.

[0337] In one embodiment, the second communication interface 701 is further configured to: broadcast at least two sets of access priority parameters before sending the second information to the terminal; wherein,

[0338] Each of the at least two sets of access priority parameters represents the network side's access priority parameters for a specific terminal, a specific slice, or a specific service.

[0339] 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; wherein,

[0340] The first access priority parameter represents the access priority parameter specified by the network side for ordinary type terminals; the second access priority parameter represents the access priority parameter specified by the network side for low-capability terminals.

[0341] In one embodiment, the second information is used to indicate:

[0342] Both Type 1 and Type 2 terminals use the current access priority parameters;

[0343] The first type of terminal uses the current access priority parameters, and the second type of terminal uses the specified access priority parameters; or...

[0344] Both Type 1 and Type 2 terminals use the specified access priority parameters.

[0345] In one embodiment, the second processor 702 is configured to:

[0346] The terminal type is determined based on the preamble or random access opportunity (RO) resource sent by the terminal in MSG 1 or MSG A, and / or based on the third information carried in MSG 1, MSG 3 or MSG A sent by the terminal.

[0347] Configure different groups of random access resources for different types of terminals; among them,

[0348] The third piece of information is used to indicate the terminal type.

[0349] In one embodiment, the second communication interface 701 is further configured to:

[0350] Send the fourth piece of information to the terminal; among which,

[0351] The fourth information is used to instruct the terminal to report the third information via MSG 1, MSG 3 or MSG A.

[0352] It should be noted that the specific processing procedures of the second processor 702 and the second communication interface 701 can be understood by referring to the above method.

[0353] Of course, in practical applications, the various components in base station 700 are coupled together through bus system 704. It can be understood that bus system 704 is used to realize the connection and communication between these components. In addition to the data bus, bus system 704 also includes a power bus, a control bus, and a status signal bus. However, for the sake of clarity, in... Figure 7 The general designated all buses as Bus System 704.

[0354] The second memory 703 in this embodiment is used to store various types of data to support the operation of the base station 700. Examples of such data include any computer program used to operate on the base station 700.

[0355] The methods disclosed in the embodiments of this application can be applied to the second processor 702, or implemented by the second processor 702. The second processor 702 may be an integrated circuit chip with signal processing capabilities. In the implementation process, each step of the above method can be completed by the integrated logic circuit of the hardware or by instructions in the form of software in the second processor 702. The second processor 702 may be a general-purpose processor, a DSP, or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The second processor 702 can implement or execute the methods, steps, and logic block diagrams disclosed in the embodiments of this application. The general-purpose processor may be a microprocessor or any conventional processor, etc. The steps of the methods disclosed in the embodiments of this application can be directly manifested as being executed by a hardware decoding processor, or being executed by a combination of hardware and software modules in the decoding processor. The software modules may be located in a storage medium, which is located in the second memory 703. The second processor 702 reads the information in the second memory 703 and completes the steps of the aforementioned method in combination with its hardware.

[0356] In an exemplary embodiment, base station 700 may be implemented by one or more ASICs, DSPs, PLDs, CPLDs, FPGAs, general-purpose processors, controllers, MCUs, microprocessors, or other electronic components to perform the aforementioned method.

[0357] It is understood that the memories (first memory 603, second memory 703) in the embodiments of this application can be volatile memory or non-volatile memory, or both. Non-volatile memory can 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 disc, or compact disc read-only memory (CD-ROM); magnetic surface memory can be disk storage or magnetic tape storage. Volatile memory can be random access memory (RAM), which is used as an external cache. By way of example, but 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 Rambus Random Access Memory (DRRAM).The memories described in the embodiments of this application are intended to include, but are not limited to, these and any other suitable types of memories.

[0358] In an exemplary embodiment, this application also provides a storage medium, namely a computer storage medium, specifically a computer-readable storage medium, such as a first memory 1203 storing a computer program, which can be executed by the first processor 602 of the terminal 600 to complete the steps described in the aforementioned terminal-side method. Another example is a second memory 703 storing a computer program, which can be executed by the second processor 702 of the base station 700 to complete the steps described in the aforementioned base station-side method. The computer-readable storage medium can be a memory such as FRAM, ROM, PROM, EPROM, EEPROM, Flash Memory, magnetic surface memory, optical disc, or CD-ROM.

[0359] It should be noted that terms such as "first" and "second" are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence.

[0360] Furthermore, the technical solutions described in the embodiments of this application can be combined arbitrarily without conflict.

[0361] The above description is merely a preferred embodiment of this application and is not intended to limit the scope of protection of this application.

Claims

1. A communication method, characterized in that, Applied to a terminal, the method includes: The system receives at least two sets of configurations transmitted by the base station via system information; each of the at least two sets of configurations includes carrier information or partial bandwidth BWP information, representing the carrier or BWP configured by the network side for a specific terminal to communicate; each of the at least two sets of configurations further includes at least two sets of access priority parameters; the access priority parameters include random access step size and / or backoff time parameters; each of the at least two sets of access priority parameters represents the access priority parameters configured by the network side for a specific slice. The terminal receives first information sent by the base station on a first carrier or a first BWP; wherein the first information is used to instruct the terminal to use the first carrier or the first BWP to perform a random access procedure, and / or to instruct the terminal to use the second carrier or the second BWP to perform a random access procedure. The first information is used to indicate: Both the first type of terminal and the second type of terminal use the first carrier or the first BWP for the random access process; Both the first type of terminal and the second type of terminal undergo a random access procedure via the second carrier or the second BWP; or... The first type of terminal uses the first carrier or the first BWP for random access, and the second type of terminal uses the second carrier or the second BWP for random access. The first type of terminal represents a regular terminal; the second type of terminal represents a low-capability terminal.

2. The method according to claim 1, characterized in that, The first information is carried in the random access response (RAR) or MSG4 sent by the base station.

3. The method according to claim 1, characterized in that, Each of the at least two configuration groups includes at least one of the following: The frequency of the carrier wave; BWP frequency; The measurement time configuration SMTC cycle is based on the synchronization signal block.

4. The method according to claim 1, characterized in that, The method further includes: Receive the second information sent by the base station; wherein, The second information is used to instruct the terminal to use the first access priority parameter; and / or to instruct the terminal to use the second access priority parameter.

5. The method according to claim 4, characterized in that, Before receiving the second information sent by the base station using the first access priority parameter, the method further includes: Receive at least two sets of access priority parameters sent by the base station; wherein, Each of the at least two sets of access priority parameters represents the access priority parameters configured by the network side for a specific terminal, a specific slice, or a specific service.

6. The method according to claim 5, characterized in that, The access priority corresponding to the first access priority parameter is higher than the access priority corresponding to the second access priority parameter; where... The first access priority parameter represents the access priority parameter configured by the network side for ordinary terminals; the second access priority parameter represents the access priority parameter configured by the network side for low-capability terminals.

7. The method according to claim 4, characterized in that, The second information is used to indicate: Both the first type of terminal and the second type of terminal use the first access priority parameter; The first type of terminal uses the first access priority parameter, and the second type of terminal uses the second access priority parameter; or... Both the first type of terminal and the second type of terminal use the second access priority parameter.

8. The method according to claim 1, characterized in that, The method further includes: Send third information to the base station; wherein, The third information is used to indicate the terminal type; the third information is carried in MSG1, MSG3 or MSGA and sent.

9. The method according to claim 8, characterized in that, Before sending the third information to the base station, the method further includes: Receive the fourth information sent by the base station; wherein, The fourth information is used to instruct the terminal to report the third information via MSG1, MSG3, or MSGA.

10. A communication method, characterized in that, Applied to a base station, the method includes: At least two sets of configurations are sent via system information; each of the at least two sets of configurations includes carrier information or BWP information, representing the carrier or BWP configured by the network side for a specific terminal to communicate; each of the at least two sets of configurations further includes at least two sets of access priority parameters; the access priority parameters include random access step size and / or backoff time parameters; each of the at least two sets of access priority parameters represents the access priority parameters configured by the network side for a specific slice. Send first information to the terminal on the first carrier or the first BWP; wherein the first information is used to instruct the terminal to perform a random access procedure using the first carrier or the first BWP, and / or instruct the terminal to perform a random access procedure on the second carrier or the second BWP; The first information is used to indicate: Both the first type of terminal and the second type of terminal use the first carrier or the first BWP for the random access process; Both the first type of terminal and the second type of terminal undergo a random access procedure via the second carrier or the second BWP; or... The first type of terminal uses the first carrier or the first BWP for random access, and the second type of terminal uses the second carrier or the second BWP for random access. The first type of terminal represents a regular terminal; the second type of terminal represents a low-capability terminal.

11. The method according to claim 10, characterized in that, The first information is carried in the RAR or MSG4 transmitted by the base station.

12. The method according to claim 10, characterized in that, Each of the at least two configuration groups includes at least one of the following: The frequency of the carrier wave; BWP frequency; SMTC cycle.

13. The method according to claim 10, characterized in that, The method further includes: Send a second message to the terminal; wherein, The second information is used to instruct the terminal to use the first access priority parameter; and / or to instruct the terminal to use the second access priority parameter.

14. The method according to claim 13, characterized in that, Before sending the second information to the terminal, the method further includes: Broadcast at least two sets of access priority parameters; among which, Each of the at least two sets of access priority parameters represents the access priority parameters configured by the network side for a specific terminal, a specific slice, or a specific service.

15. The method according to claim 14, characterized in that, The access priority corresponding to the first access priority parameter is higher than the access priority corresponding to the second access priority parameter; where... The first access priority parameter represents the access priority parameter configured by the network side for ordinary type terminals; the second access priority parameter represents the access priority parameter configured by the network side for low-capability terminals.

16. The method according to claim 13, characterized in that, The second information is used to indicate: Both the first type of terminal and the second type of terminal use the first access priority parameter; The first type of terminal uses the first access priority parameter, and the second type of terminal uses the second access priority parameter; or... Both the first type of terminal and the second type of terminal use the second access priority parameter.

17. The method according to claim 10, characterized in that, The method further includes: The terminal type is determined based on the preamble of MSG1 or MSGA sent by the terminal or random access opportunity (RO) resources, and / or based on the third information carried in MSG1, MSG3 or MSGA sent by the terminal. Configure different groups of random access resources for terminals of different terminal types; among which, The third piece of information is used to indicate the terminal type.

18. The method according to claim 17, characterized in that, Prior to the third information carried in the MSG1, MSG3, or MSGA transmitted from the terminal, the method further includes: Send the fourth piece of information to the terminal; among which, The fourth information is used to instruct the terminal to report the third information via MSG1, MSG3, or MSGA.

19. A communication device, characterized in that, include: The first receiving unit is configured to receive at least two sets of configurations transmitted by the base station through system information; wherein each of the at least two sets of configurations includes carrier information or BWP information, representing the carrier or BWP configured by the network side for a specific terminal to communicate; each of the at least two sets of configurations further includes at least two sets of access priority parameters; the access priority parameters include random access step size and / or backoff time parameters; each of the at least two sets of access priority parameters represents the access priority parameters configured by the network side for a specific slice. The second receiving unit is configured to receive first information sent by the base station on the first carrier or the first BWP; wherein the first information is configured to instruct the terminal to use the first carrier or the first BWP to perform a random access procedure, and / or instruct the terminal to use the second carrier or the second BWP to perform a random access procedure. The first information is used to indicate: Both the first type of terminal and the second type of terminal use the first carrier or the first BWP for the random access process; Both the first type of terminal and the second type of terminal undergo a random access procedure via the second carrier or the second BWP; or... The first type of terminal uses the first carrier or the first BWP for random access, and the second type of terminal uses the second carrier or the second BWP for random access. The first type of terminal represents a regular terminal; the second type of terminal represents a low-capability terminal.

20. A communication device, characterized in that, include: The first transmitting unit is configured to transmit at least two sets of configurations via system information; wherein each of the at least two sets of configurations includes carrier information or BWP information, representing the carrier or BWP configured by the network side for a specific terminal to communicate; each of the at least two sets of configurations further includes at least two sets of access priority parameters; the access priority parameters include random access step size and / or backoff time parameters; each of the at least two sets of access priority parameters represents the access priority parameters configured by the network side for a specific slice. The second transmitting unit is configured to transmit first information to the terminal on the first carrier or the first BWP; wherein the first information is configured to instruct the terminal to perform a random access procedure using the first carrier or the first BWP, and / or instruct the terminal to perform a random access procedure on the second carrier or the second BWP. The first information is used to indicate: Both the first type of terminal and the second type of terminal use the first carrier or the first BWP for the random access process; Both the first type of terminal and the second type of terminal undergo a random access procedure via the second carrier or the second BWP; or... The first type of terminal uses the first carrier or the first BWP for random access, and the second type of terminal uses the second carrier or the second BWP for random access. The first type of terminal represents a regular terminal; the second type of terminal represents a low-capability terminal.

21. A terminal, characterized in that, include: A first processor and a first communication interface; wherein... The first communication interface is used to receive at least two sets of configurations sent by the base station through system information; wherein each of the at least two sets of configurations includes carrier information or BWP information, representing the carrier or BWP configured by the network side for a specific terminal to communicate; each of the at least two sets of configurations further includes at least two sets of access priority parameters; the access priority parameters include random access step size and / or backoff time parameters; each of the at least two sets of access priority parameters represents the access priority parameters configured by the network side for a specific slice. The first communication interface is further configured to receive first information sent by the base station on the first carrier or the first BWP; wherein the first information is configured to instruct the terminal to use the first carrier or the first BWP to perform a random access procedure, and / or instruct the terminal to use the second carrier or the second BWP to perform a random access procedure. The first information is used to indicate: Both the first type of terminal and the second type of terminal use the first carrier or the first BWP for the random access process; Both the first type of terminal and the second type of terminal undergo a random access procedure via the second carrier or the second BWP; or... The first type of terminal uses the first carrier or the first BWP for random access, and the second type of terminal uses the second carrier or the second BWP for random access. The first type of terminal represents a regular terminal; the second type of terminal represents a low-capability terminal.

22. A base station, characterized in that, include: A second processor and a second communication interface; wherein... The second communication interface is used to send at least two sets of configurations via system information; wherein each of the at least two sets of configurations includes carrier information or BWP information, representing the carrier or BWP configured by the network side for a specific terminal to communicate; each of the at least two sets of configurations further includes at least two sets of access priority parameters; the access priority parameters include random access step size and / or backoff time parameters; each of the at least two sets of access priority parameters represents the access priority parameters configured by the network side for a specific slice. The second communication interface is further configured to send first information to the terminal on the first carrier or the first BWP; wherein the first information is configured to instruct the terminal to use the first carrier or the first BWP to perform a random access procedure, and / or instruct the terminal to use the second carrier or the second BWP to perform a random access procedure. The first information is used to indicate: Both the first type of terminal and the second type of terminal use the first carrier or the first BWP for the random access process; Both the first type of terminal and the second type of terminal undergo a random access procedure via the second carrier or the second BWP; or... The first type of terminal uses the first carrier or the first BWP for random access, and the second type of terminal uses the second carrier or the second BWP for random access. The first type of terminal represents a regular terminal; the second type of terminal represents a low-capability terminal.

23. A terminal, characterized in that, include: A first processor and a first memory for storing computer programs capable of running on the processor. Wherein, when the first processor is used to run the computer program, it performs the steps of the method according to any one of claims 1 to 9.

24. A base station, characterized in that, include: A second processor and a second memory for storing computer programs that can run on the processor. Wherein, when the second processor is used to run the computer program, it performs the steps of the method according to any one of claims 10 to 18.

25. A storage medium having a computer program stored thereon, characterized in that, When the computer program is executed by a processor, it implements the steps of the method according to any one of claims 1 to 9, or the steps of the method according to any one of claims 10 to 18.

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