WO2023131156A1 - 随机接入的方法和通信装置 - Google Patents

随机接入的方法和通信装置 Download PDF

Info

Publication number
WO2023131156A1
WO2023131156A1 PCT/CN2023/070313 CN2023070313W WO2023131156A1 WO 2023131156 A1 WO2023131156 A1 WO 2023131156A1 CN 2023070313 W CN2023070313 W CN 2023070313W WO 2023131156 A1 WO2023131156 A1 WO 2023131156A1
Authority
WO
WIPO (PCT)
Prior art keywords
random access
access priority
terminal device
feature
correspondence
Prior art date
Application number
PCT/CN2023/070313
Other languages
English (en)
French (fr)
Inventor
张柔佳
孙飞
酉春华
王珏
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Publication of WO2023131156A1 publication Critical patent/WO2023131156A1/zh

Links

Images

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access, e.g. scheduled or random access
    • H04W74/08—Non-scheduled or contention based access, e.g. random access, ALOHA, CSMA [Carrier Sense Multiple Access]
    • H04W74/0833—Non-scheduled or contention based access, e.g. random access, ALOHA, CSMA [Carrier Sense Multiple Access] using a random access procedure
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/56—Allocation or scheduling criteria for wireless resources based on priority criteria
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access, e.g. scheduled or random access
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access, e.g. scheduled or random access
    • H04W74/002—Transmission of channel access control information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access, e.g. scheduled or random access
    • H04W74/08—Non-scheduled or contention based access, e.g. random access, ALOHA, CSMA [Carrier Sense Multiple Access]

Definitions

  • the present application relates to the communication field, and, more specifically, to a random access method and a communication device.
  • the present application provides a random access method and device, in order to ensure the normal progress of communication.
  • a random access method is provided.
  • the method may be executed by a terminal device, or may also be executed by a component configured in the terminal device (such as a chip or a chip system, etc.), which is not limited in the present application.
  • the method includes: the terminal device determines the first random access priority corresponding to the first feature and the second random access priority corresponding to the second feature, the first feature and the second feature are features corresponding to the service, and the terminal device refers to The ordering of the first random access priority and the second random access priority determines the random access priority used by the terminal device to perform random access.
  • the terminal device can refer to the ranking of different random access priorities to select a more appropriate random access priority. Random access is performed according to the access priority, so as to improve the success rate of random access of terminal equipment, in order to ensure the normal progress of communication.
  • the first feature or the second feature includes any of the following: network slicing, small data transmission, coverage enhancement, limited capability, multimedia priority service, or mission critical business.
  • the terminal device when the service initiated by the terminal device corresponds to at least two features of network slicing, small data transmission, coverage enhancement, limited capability, multimedia priority service, or mission-critical service, and the terminal device When at least two random access priorities can be selected, the terminal device can select a random access priority that is easier to access randomly from the at least two random access priorities, thereby improving the success rate of random access of the terminal device .
  • the terminal device receives first indication information from the network device, where the first indication information indicates the first random access priority and/or the second random access priority Sort by priority.
  • the network device indicates the order of different random access priorities through the first indication information, thereby solving the problem of how to solve the problem when the terminal device determines that there are two random access priorities that can be selected according to the characteristics of the initiated service. According to the ranking among the random access priorities, a more appropriate random access priority is selected to perform random access.
  • This solution can not only realize the centralized management of terminal device behavior by network devices, but also reduce the complexity of terminal device implementation.
  • the ranking of the first random access priority and/or the second random access priority is determined based on first information, and the first information includes the following At least one item: service delay requirement information, or terminal device capability information.
  • the terminal device can refer to the first information to determine the random access priority used for random access.
  • the second process no indication from the network device may be required.
  • signaling overhead can be saved, and the implementation of terminal equipment is more autonomous.
  • the terminal device receives second indication information from the network device, where the second indication information instructs the terminal device to use the random access priority corresponding to the first feature, The terminal device determines the random access priority used by the terminal device for random access with reference to the second indication information.
  • the terminal device can refer to the second indication information to determine which feature corresponds to the random access priority for random access when the service initiated by the terminal device corresponds to at least two features, and the second indication information may not be used.
  • the ordering among different random access priorities is indicated. Therefore, compared with the scheme in which the network device indicates the ordering among different random access priorities through the first indication information, this solution can save part of the signaling overhead.
  • the terminal device when the first feature indicated by the second indication information does not belong to the feature corresponding to the service initiated by the terminal device, the terminal device needs to refer to the first information to determine to perform random access
  • the random access priority used the first information includes at least one of the following: service delay requirement information, or terminal device capability information.
  • the terminal device can determine the random access priority that is more suitable for random access in combination with the first information. Compared with the network device indicating the random access priority through the first indication information As far as the sorting solution is concerned, part of the signaling overhead can be saved, and it is more flexible in the realization of the terminal equipment.
  • the terminal device when the terminal device fails to perform random access for the first time using the random access priority, the terminal device refers to the first random access priority and the second random access priority
  • the order of access priority determines the random access priority used for the second random access, and the random access priority used by the terminal device for the second random access can be different from the random access priority used for the first random access. levels are different.
  • the terminal device when the terminal device fails to use the random access priority for the first random access, it can refer to the above first indication information, first information, or second indication information, and reselect the first random access. Different random access priorities of different random access priorities are used to perform random access, thereby improving the success rate of random access of terminal devices.
  • the terminal device receives a first correspondence and a second correspondence from the network device, where the first correspondence includes a correspondence between a random access channel partition and a feature,
  • the second correspondence includes a correspondence between a random access channel partition and a random access priority.
  • the terminal device refers to the first correspondence, and the second correspondence determines the first random access priority and the second random access priority corresponding to the first feature.
  • the second random access priority corresponding to the two characteristics.
  • the network device configures the random access priority based on the granularity of the random access channel partition, so that at least two features can correspond to the same random access priority. For a level solution, signaling overhead can be saved.
  • the terminal device receives identification information from the network device, the identification information indicates the applicable feature of the random access priority corresponding to the random access channel partition, and the terminal device refers to the The first correspondence, the second correspondence, and the identification information determine a first random access priority corresponding to the first feature and a second random access priority corresponding to the second feature.
  • a random access method is provided.
  • the method may be executed by a network device, or may also be executed by a component configured in the network device (such as a chip or a chip system, etc.), which is not limited in the present application.
  • the method includes: the network device sends a first correspondence and a second correspondence to the terminal device, the first correspondence includes the correspondence between the random access channel partition and the feature, and the second correspondence includes the random access channel partition and the A correspondence between random access priorities, where the first correspondence and the second correspondence are used to determine the first random access priority corresponding to the first feature and/or the second random access priority corresponding to the second feature , the first feature and the second feature are features corresponding to the service, the network device sends the first indication information to the terminal device, the first indication information indicates the first random access priority and/or the second random access priority sorting.
  • the network device indicates the order of different random access priorities through the first indication information, thereby solving the problem of how to solve the problem when the terminal device determines that there are two random access priorities that can be selected according to the characteristics of the initiated service. According to the ranking among the random access priorities, a more appropriate random access priority is selected to perform random access.
  • This solution can not only realize the centralized management of the behavior of the terminal equipment by the network equipment, but also reduce the implementation complexity of the terminal equipment.
  • a random access method is provided.
  • the method may be executed by a network device, or may also be executed by a component configured in the network device (such as a chip or a chip system, etc.), which is not limited in the present application.
  • the method includes: the network device sends a first correspondence and a second correspondence to the terminal device, the first correspondence includes the correspondence between the random access channel partition and the feature, and the second correspondence includes the random access channel partition and the A correspondence between random access priorities, where the first correspondence and the second correspondence are used to determine the first random access priority corresponding to the first feature and/or the second random access priority corresponding to the second feature , the first feature and the second feature are features corresponding to the service, and the network device sends second indication information to the terminal device, where the second indication information instructs the terminal device to use the random access priority corresponding to the first feature.
  • the terminal device can refer to the second indication information to determine which feature corresponds to the random access priority for random access when the service initiated by the terminal device corresponds to at least two features, and the second indication information may not be used.
  • the ordering among different random access priorities is indicated. Therefore, compared with the scheme in which the network device indicates the ordering among different random access priorities through the first indication information, this solution can save part of the signaling overhead.
  • the first feature or the second feature includes any of the following: network slicing, small data transmission, coverage enhancement, capability restricted limited, multimedia priority services, or mission critical services.
  • the terminal device when the service initiated by the terminal device corresponds to at least two features of network slicing, small data transmission, coverage enhancement, limited capability, multimedia priority service, or mission-critical service, and the terminal device When at least two random access priorities can be selected, the terminal device can select a random access priority that is easier to access randomly from the at least two random access priorities, thereby improving the success rate of random access of the terminal device .
  • the network device sends identification information to the terminal device, where the identification information indicates that the random access priority corresponding to the random access channel partition applies The identification information is used to determine the first random access priority corresponding to the first feature and/or the second random access priority corresponding to the second feature.
  • a communication device may be a terminal device, or may also be a component configured in the terminal device (such as a chip or a chip system, etc.), which is not limited in this application.
  • the device includes a processing unit and a transceiver unit: the processing unit is configured to determine a first random access priority corresponding to a first feature and a second random access priority corresponding to a second feature, the first feature and the second feature are The characteristics corresponding to the service, and refer to the order of the first random access priority and the second random access priority to determine the random access priority used by the terminal device for random access.
  • the first feature or the second feature includes any of the following: network slicing, small data transmission, coverage enhancement, limited capability, multimedia priority service, or mission critical business.
  • the transceiving unit is configured to receive first indication information from the network device, where the first indication information indicates the first random access priority and/or the second Random access priority ordering.
  • the ranking of the first random access priority and the second random access priority is determined based on first information, and the first information includes at least one of the following Item: service delay requirement information, or terminal device capability information.
  • the transceiver unit is configured to receive second indication information from the network device, the second indication information instructing the terminal device to use the random access priority corresponding to the first feature level
  • the processing unit is configured to refer to the second indication information to determine the random access priority used by the terminal device to perform random access.
  • the processing unit when the first feature indicated by the second indication information does not belong to the feature corresponding to the service initiated by the terminal device, the processing unit is further configured to refer to the first information to determine the terminal
  • the random access priority used by the device for random access the first information includes at least one of the following: service delay requirement information, or terminal device capability information.
  • the capability information of the terminal device is the capability information of the device
  • the capability information of the terminal device is the Capability information of the device.
  • the processing unit when the terminal device fails to perform random access for the first time using the random access priority, the processing unit is further configured to refer to the first random access priority
  • the random access priority used for the second random access is determined by the ranking of the second random access priority, and the random access priority used by the terminal device for the second random access is the same as the random access priority used for the first random access. Random access priorities are different.
  • the transceiver unit is further configured to receive a first correspondence and a second correspondence from the network device, the first correspondence includes a random access channel partition and a characteristic The corresponding relationship, the second corresponding relationship includes the corresponding relationship between the random access channel partition and the random access priority, and the processing unit is also used to refer to the first corresponding relationship and the second corresponding relationship to determine the first feature corresponding to the corresponding relationship A random access priority and a second random access priority corresponding to the second feature.
  • the transceiver unit is further configured to receive identification information from the network device, where the identification information indicates a feature applicable to the random access priority corresponding to the random access channel partition,
  • the processing unit is further configured to refer to the first correspondence, the second correspondence, and the identification information to determine a first random access priority corresponding to the first feature and a second random access priority corresponding to the second feature .
  • a communication device may be a network device, or may also be a component configured in the network device (such as a chip or a chip system, etc.), which is not limited in the present application.
  • the apparatus includes a processing unit and a transceiver unit: the transceiver unit is used to send a first correspondence and a second correspondence to the terminal device, the first correspondence includes the correspondence between the random access channel partition and the feature, and the second correspondence
  • the relationship includes a correspondence between a random access channel partition and a random access priority, and the first correspondence and the second correspondence are used to determine the first random access priority corresponding to the first feature and/or the second feature corresponding to The second random access priority, the first feature and the second feature are features corresponding to the service, the transceiver unit is also used to send the first indication information to the terminal device, the first indication information indicates the first random access priority and/or ordering of the second random access priority.
  • a communication device may be a network device, or may also be a component configured in the network device (such as a chip or a chip system, etc.), which is not limited in the present application.
  • the apparatus includes a transceiver unit: the transceiver unit is used to send a first correspondence and a second correspondence to the terminal device, the first correspondence includes the correspondence between the random access channel partition and the feature, and the second correspondence includes a random access channel
  • the correspondence between access channel partitions and random access priorities, the first correspondence and the second correspondence are used to determine the first random access priority corresponding to the first feature and/or the second random access priority corresponding to the second feature Random access priority
  • the first feature and the second feature are features corresponding to the service
  • the transceiver unit is also used to send second instruction information to the terminal device, the second instruction information instructs the terminal device to use the service corresponding to the first feature Random access priority.
  • the first feature or the second feature includes any of the following: network slicing, small data transmission, coverage enhancement, capability restricted limited, multimedia priority services, or mission critical services.
  • the transceiver unit is further configured to send identification information to the terminal device, where the identification information indicates the random access channel corresponding to the random access channel partition.
  • the identification information is used to determine the first random access priority corresponding to the first feature and/or the second random access priority corresponding to the second feature.
  • a communication device the device includes a processor, the processor is coupled with a memory, and can be used to execute instructions in the memory, so as to realize the first aspect above, or any possible implementation manner in the first aspect Methods.
  • the device further includes a memory, and the memory and the processor may be deployed separately or in a centralized manner.
  • the device further includes a communication interface, and the processor is coupled to the communication interface.
  • the communication interface may be a transceiver, or an input/output interface.
  • the device is a chip configured in a terminal device.
  • the communication interface may be an input/output interface, interface circuit, output circuit, input circuit, pin or related circuit on the chip or chip system.
  • the processor may also be embodied as a processing circuit or logic circuit.
  • the transceiver may be a transceiver circuit.
  • the input/output interface may be an input/output circuit.
  • the above-mentioned processor can be one or more chips
  • the input circuit can be an input pin
  • the output circuit can be an output pin
  • the processing circuit can be a transistor, a gate circuit, a flip-flop and various logic circuits, etc. .
  • the input signal received by the input circuit may be received and input by the receiver, but the signal output by the output circuit may be but not limited to be output to the transmitter and transmitted by the transmitter, and the input circuit and the output circuit may be The same circuit, which is used as an input circuit and an output circuit at different times.
  • the embodiment of the present application does not limit the specific implementation manners of the processor and various circuits.
  • a communication device the device includes a processor, the processor is coupled with a memory, and can be used to execute instructions in the memory, so as to realize the above-mentioned second or third aspect, or the second or third aspect A method in any of the possible implementations.
  • the device further includes a memory, and the memory and the processor may be deployed separately or in a centralized manner.
  • the device further includes a communication interface, and the processor is coupled to the communication interface.
  • the communication interface may be a transceiver, or an input/output interface.
  • the device is a chip configured in a network device.
  • the communication interface may be an input/output interface, interface circuit, output circuit, input circuit, pin or related circuit on the chip or chip system.
  • the processor may also be embodied as a processing circuit or logic circuit.
  • the transceiver may be a transceiver circuit.
  • the input/output interface may be an input/output circuit.
  • the above-mentioned processor can be one or more chips
  • the input circuit can be an input pin
  • the output circuit can be an output pin
  • the processing circuit can be a transistor, a gate circuit, a flip-flop and various logic circuits, etc. .
  • the input signal received by the input circuit may be received and input by the receiver, but the signal output by the output circuit may be but not limited to be output to the transmitter and transmitted by the transmitter, and the input circuit and the output circuit may be The same circuit, which is used as an input circuit and an output circuit at different times.
  • the embodiment of the present application does not limit the specific implementation manners of the processor and various circuits.
  • a communication device which includes a logic circuit, the logic circuit is used to couple with an input/output interface, and transmit data through the input/output interface, so as to perform any of the above first to third aspects
  • a communication device which includes a logic circuit, the logic circuit is used to couple with an input/output interface, and transmit data through the input/output interface, so as to perform any of the above first to third aspects
  • a computer-readable storage medium stores a computer program (also referred to as code, or an instruction) which, when run on a computer, causes the computer to perform the above-mentioned first to Any aspect in the third aspect, and the method in any possible implementation manner in the first aspect to the third aspect.
  • a computer program also referred to as code, or an instruction
  • a computer program product includes: a computer program (also referred to as code, or an instruction), which, when the computer program is executed, causes the computer to perform the above-mentioned first to third aspects. Any one of the aspects, and the method in any possible implementation manner of the first aspect to the third aspect.
  • FIG. 1 is a schematic diagram of a network architecture provided by an embodiment of the present application.
  • Fig. 2 is a schematic flow chart for random access provided by an embodiment of the present application.
  • Fig. 3 is an interaction flow chart of a method for determining a random access priority provided by an embodiment of the present application.
  • FIG. 4 is a schematic diagram of dividing random access resources provided by an embodiment of the present application.
  • FIG. 5 is an interaction flow diagram of another method for determining a random access priority provided by an embodiment of the present application.
  • FIG. 6 is an interaction flow diagram of another method for determining a random access priority provided by an embodiment of the present application.
  • Fig. 7 is a schematic block diagram of a communication device provided by an embodiment of the present application.
  • FIG. 8 is a schematic structural diagram of a communication device provided by an embodiment of the present application.
  • FIG. 9 is a schematic structural diagram of a terminal device provided by an embodiment of the present application.
  • FIG. 10 is a schematic structural diagram of a network device provided by an embodiment of the present application.
  • FIG. 11 is a schematic structural diagram of another communication device provided by an embodiment of the present application.
  • FIG. 1 is a schematic diagram of a network architecture 100 provided by an embodiment of the present application.
  • FIG. 1 shows a terminal device 101, a network device 102, and a core network device 103 in a 5G system.
  • the network device 102 and the core network device 103 virtualize multiple (only two are illustrated in FIG. 1 ) isolated logical subnets to provide targeted services to users.
  • FIG. 1 shows a logical subnet corresponding to network slice #1, and a logical subnet corresponding to network slice #2.
  • Different network slices provide different services for terminal devices, for example, terminal device 101 accesses network device 102, network device 102 and core network device 103 provide terminal device 101 with enhanced Mobile Broadband (eMBB) service through network slice #1 , the network device 102 and the core network device 103 provide the terminal device 101 with an ultra-reliable low-latency communication (ultra-reliable low-latency communication, URLLC) service through the network slice #2.
  • eMBB enhanced Mobile Broadband
  • URLLC ultra-reliable low-latency communication
  • network devices will carry network slice random access configuration information in broadcast messages.
  • the network slice service initiated by the terminal device belongs to the service corresponding to network slice #1
  • the network side uses network slice #1 as Terminal equipment services.
  • the terminal device 101 may carry the corresponding single network slice selection auxiliary information in the registration request, and the network device 102 selects an access network that can provide the eMBB service for the terminal device 101 through the single network slice selection auxiliary information.
  • mobility management function access and mobility management function, AMF
  • AMF access and mobility management function
  • PDU protocol data unit
  • FIG. 1 is only an example, and does not constitute any limitation to the protection scope of the present application.
  • the embodiments provided in the embodiments of the present application may also involve network nodes (devices) not shown in FIG. 1 , and of course the embodiments provided in the embodiments of the present application may also only include the network nodes (devices) shown in FIG. 1 .
  • the terminal equipment in the embodiment of the present application may also be referred to as a terminal, an access terminal, a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, a remote terminal, a mobile device, a user terminal, a wireless communication device, a user agent or user device.
  • the terminal in the embodiment of the present application may be a mobile phone (mobile phone), a tablet computer (pad), a computer with a wireless transceiver function, a virtual reality (virtual reality, VR) terminal, an augmented reality (augmented reality, AR) terminal, an industrial Wireless terminals in industrial control, wireless terminals in self driving, wireless terminals in remote medical, wireless terminals in smart grid, transportation safety Wireless terminals in smart cities, wireless terminals in smart cities, wireless terminals in smart homes, cellular phones, cordless phones, session initiation protocol (SIP) phones, wireless local loop ( wireless local loop (WLL) station, personal digital assistant (personal digital assistant, PDA), handheld device with wireless communication function, computing device or other processing device connected to a wireless modem, vehicle-mounted device, wearable device, 5G network A terminal or a terminal in a future evolved network, etc.
  • a virtual reality virtual reality
  • AR augmented reality
  • industrial Wireless terminals in industrial control wireless terminals in self driving
  • wireless terminals in remote medical wireless terminals in smart grid
  • wearable devices can also be called wearable smart devices, which is a general term for the application of wearable technology to intelligently design daily wear and develop wearable devices, such as glasses, gloves, watches, clothing and shoes.
  • a wearable device is a portable device that is worn directly on the body or integrated into the user's clothing or accessories.
  • Wearable devices are not only a hardware device, but also achieve powerful functions through software support, data interaction, and cloud interaction.
  • Generalized wearable smart devices include full-featured, large-sized, complete or partial functions without relying on smart phones, such as smart watches or smart glasses, etc., and only focus on a certain type of application functions, and need to cooperate with other devices such as smart phones Use, such as various smart bracelets and smart jewelry for physical sign monitoring.
  • the network device in this embodiment of the present application may be any communication device with a wireless transceiver function for communicating with a terminal device.
  • the network equipment includes but is not limited to: evolved Node B (evolved Node B, eNB), radio network controller (radio network controller, RNC), Node B (Node B, NB), base station controller (base station controller, BSC) ), base transceiver station (base transceiver station, BTS), home base station (home evolved NodeB, HeNB, or home Node B, HNB), baseband unit (baseBand unit, BBU), wireless fidelity (wireless fidelity, WIFI) system Access point (access point, AP), wireless relay node, wireless backhaul node, transmission point (transmission point, TP) or transmission and reception point (transmission and reception point, TRP), etc., can also be 5G, such as NR A gNB in the system, or a transmission point (TRP or TP), one or a group (including multiple antenna panels) antenna panels of
  • a gNB may include a centralized unit (CU) and a DU.
  • the gNB may also include an active antenna unit (AAU).
  • the CU implements some functions of the gNB, and the DU implements some functions of the gNB.
  • the CU is responsible for processing non-real-time protocols and services, and realizing the functions of radio resource control (radio resource control, RRC) and packet data convergence protocol (packet data convergence protocol, PDCP) layer.
  • the DU is responsible for processing physical layer protocols and real-time services, realizing the functions of the radio link control (radio link control, RLC) layer, media access control (media access control, MAC) layer and physical (physical, PHY) layer.
  • the AAU implements some physical layer processing functions, radio frequency processing and related functions of active antennas.
  • the information of the RRC layer is generated by the CU, and will eventually be packaged into the PHY layer information by the PHY layer of the DU, or transformed from the information of the PHY layer. Therefore, under this architecture, high-level signaling such as RRC layer signaling can also be considered to be sent by the DU, or sent by the DU+AAU.
  • the network device may be a device including one or more of a CU node, a DU node, and an AAU node.
  • the function of the core network device in the embodiment of the present application is to provide user connection, user management, and service bearer, and provide an interface to an external network as a bearer network.
  • the core network equipment may include an access and mobility management function (access and mobility management function, AMF), and a network slice selection function (network slice selection function, NSSF).
  • AMF access and mobility management function
  • NSSF network slice selection function
  • the AMF mainly performs functions such as mobility management and access authentication/authorization.
  • PCF policy control function
  • the NSSF is responsible for judging which network slice service should be provided for the terminal device according to the network slice selection auxiliary information or single network slice selection auxiliary information provided by the network access terminal device, and then decides which AMF to provide the access service for the terminal device.
  • the above-mentioned network elements or devices may still use their names in the 5G communication system, or may have other names, which are not limited in this embodiment of the present application.
  • the functions of the above-mentioned network element or device may be performed by an independent network element, or jointly performed by several network elements.
  • network elements in the core network can be deployed on the same or different physical devices.
  • the AMF and the SMF may be deployed on the same physical device.
  • the network elements of the 5G core network can be deployed on the same physical device as the network elements of the 4G core network.
  • the enumeration of network elements included in the core network equipment is only an example, and does not constitute any limitation to the protection scope of the present application.
  • the core network equipment may also include network elements not listed above.
  • the core network equipment of the present application may also include only some of the network elements listed above, which is not limited in this embodiment of the present application.
  • GSM global system for mobile communications
  • CDMA code division multiple access
  • WCDMA wideband code division multiple access
  • GPRS general packet radio service
  • LTE LTE system
  • LTE advanced, LTE-A LTE frequency division duplex
  • FDD frequency division duplex
  • TDD time division duplex
  • UMTS universal mobile telecommunications system
  • WiMAX global interconnection microwave access
  • 5G system or future Evolved communication system vehicle to other equipment
  • V2X can include vehicle to Internet (vehicle to network, V2N), vehicle to vehicle (vehicle to vehicle, V2V), vehicle to infrastructure (vehicle to infrastructure, V2I), vehicles to
  • the network device configures different random access priorities (random access, RA-Prioritization) for different random access types.
  • the random access priority is used to apply for the random access process of a specific access identifier on any uplink bandwidth part (BWP) of a special cell (special cell), where the specific cell refers to the primary cell in dual connection mode
  • BWP uplink bandwidth part
  • special cell special cell
  • the primary cell in the group or the primary secondary cell of the secondary cell group refers to the primary cell in other communication modes.
  • Random access priority includes two parameters: high priority power ramping step (powerRampingStepHighPriority) and backoff indicator (backoff indicator, BI) scaling factor (scalingFactor).
  • high priority power ramping step powerRampingStepHighPriority
  • backoff indicator backoff indicator, BI
  • scaling factor scaling factor
  • the high-priority power increase step size is used to indicate the increase step size of the terminal device's transmit power during the priority random access process (that is, the terminal device has not reached the maximum number of attempts preambleTransMax when the random access process fails, and the terminal device can be at this time)
  • the power is increased by the above-mentioned high-priority power increase step size and then the random access request is sent again to improve the access success rate), and the scaling factor BI is used to control the terminal equipment in the two random access information
  • Random access resource configurations include but are not limited to: random access priority, random access preamble sequence indication information, random access preamble Indication information of the time-frequency resource occupied by the sequence, the timing length of the contention resolution timer, the maximum number of random accesses, and the size threshold of the scheduling message.
  • the basis for network device configuration can be slice-related information such as S-NSSAI and RSA ID, so that different network slice services can be treated differently, and resource isolation of different network slices can be realized. For example, when a network slice group configures a random access resource During configuration, the random access resource configuration is applicable to all network slices in the network slice group.
  • Network slicing may be referred to as slicing for short, and slicing in this application should be understood as network slicing.
  • the network device can identify the network slice currently requested by the terminal device, and judge whether the network slice service request can be accepted earlier, so as to avoid unnecessary signaling interaction between the network device and the core network.
  • the terminal device initiates service #1, which is a network slicing service, At the same time, this service #1 also includes the characteristics of MPS/MCS. At this time, there are two random access priorities available for terminal equipment. The terminal equipment needs to determine whether to use random access priority #1 or random Access priority #2 performs random access.
  • the network device sends a coverage indication to the terminal device. If the coverage indication indicates that the random access priority of the slice service covers the random access priority of the MPS/MCS, it is to instruct the terminal device to select the random access priority corresponding to the slice service. Random access with input priority #1, if the coverage indication indicates that the random access priority of MPS/MCS covers the random access priority of the slice service, it means that the terminal device is instructed to select the random access priority corresponding to MPS/MCS #2 Perform random access.
  • the above describes how the terminal device selects the random access priority for random access when the network device configures the random access priority for the service conforming to the characteristics of network slicing and MPS/MCS.
  • features corresponding to service #1 initiated by the terminal device include features other than network slicing and MPS/MCS, for example, when the features corresponding to service #1 are small data transmission and network slicing, the terminal device cannot select random Access priority for random access.
  • Small data transmission when the number of data packets generated by a terminal device is less than a certain threshold, and/or when the terminal device measures that the signal quality of the downlink reference signal is higher than a certain threshold
  • the threshold for example, when the terminal device measures that the received power of the downlink reference signal is higher than a specific threshold
  • the feature corresponding to the service initiated by the terminal device may include SDT. That is to say, when the characteristics corresponding to the service initiated by the terminal device include SDT, it means that the number of data packets generated by the service is less than a certain threshold, and/or the received power of the downlink reference signal corresponding to the terminal device that initiates the service is higher than a certain threshold.
  • features corresponding to services initiated by terminal devices of the massive machine-type communications (mMTC) type include SDT.
  • Coverage enhancement when a terminal device measures that the signal quality of a downlink reference signal is less than a certain threshold, for example, when a terminal device measures that the received power of a downlink reference signal is less than a certain threshold , the terminal device can be determined as a long-distance terminal device. At this time, the characteristics corresponding to the service initiated by the terminal device include coverage enhancement. Generally, the terminal device whose distance from the network device is less than a certain threshold is called a long-distance terminal device.
  • Capability limited (reduced capability, RedCap), wearable devices, video surveillance, industrial wireless sensors and other terminal devices can be called capability-restricted terminal devices, and the maximum bandwidth supported by capability-restricted terminal devices is higher than that of ordinary terminal devices.
  • the maximum bandwidth is small, and the number of transmitting and receiving antennas of a terminal device with limited capabilities is less than that of a common terminal device.
  • Features corresponding to services initiated by terminal devices with limited capabilities include limited capabilities. Terminal devices with limited capabilities are also referred to as low-capability terminal devices.
  • MPS network equipment provides priority processing for services including MPS features, so as to increase the possibility of successful voice, video and data communication sessions of authorized service users. That is, a terminal device that has signed up for the MPS service, or a terminal device with MPS authorization, can be compared to other PLMN users (users who have not signed up for the MPS service) when the public land mobile network (public land mobile network, PLMN) is congested. Or users who do not authorize the MPS) can preferentially obtain the next available wireless channel to access and establish a session.
  • PLMN public land mobile network
  • MCS mission-critical requirements include low setup and transmission delays, high availability and reliability, ability to handle large numbers of users and devices, strong security and prioritization, and preemptive processing.
  • This feature primarily provides communication services to mission-critical organizations or to end users of other businesses and organizations (eg, utilities, railroads). For example, features corresponding to services initiated by terminal equipment in public utilities or railway systems include MCS.
  • the characteristics of the above services are only examples, and the characteristics of the services involved in the embodiments of the present application are not limited thereto, and may also include other services according to the type of service, the service level (the service type, or the service level can be based on the type or function type of the terminal equipment) Divided) and other characteristics of the division.
  • a network device configures random access priority, it may be configured according to characteristics (functional characteristics). Characteristics (functional characteristics) can be understood as characteristics (functional characteristics) of terminal equipment. When a terminal device with specific characteristics (functional characteristics) initiates When a service is used, the service has an attribute corresponding to the specific characteristic (functional characteristic), and the attribute can also be understood as a feature. For example, a network device is configured with random access priority #1 according to the characteristic of limited capability, then the corresponding feature of the service initiated by the terminal device with the characteristic of limited capability is limited capability, which can also be said to be restricted in capability. The attribute of a service initiated by a specific terminal device is limited capability.
  • service characteristics correspond to characteristics (or functional characteristics), and the descriptions from the perspective of terminal equipment are different from those of network equipment.
  • this application uniformly describes the characteristics, characteristics, and attributes of services as service characteristics, and the differences between network equipment and terminal equipment can be understood by referring to the above description.
  • Fig. 2 is a schematic flow chart for random access provided by an embodiment of the present application.
  • the method 200 shown in FIG. 2 includes:
  • Step S210 the terminal device determines a first random access priority corresponding to the first feature and a second random access priority corresponding to the second feature, where the first feature and the second feature are features corresponding to the service.
  • the first feature or the second feature includes any of the following: network slicing, small data transmission, coverage enhancement, capability limitation, MPS, or MCS.
  • the service may be a service initiated by a terminal device or a service requested by a terminal device, such as a network slicing service, an MPS service (a service initiated by a terminal device that subscribes to MPS), an MCS service (a service initiated by a services), voice services, or video services, etc., which are not limited in this application.
  • the first feature corresponding to service #1 initiated by the terminal device is network slicing
  • the second feature is small data transmission
  • the random access priority configured by the network device for the network slicing service is random access priority #1 (No. - random access priority)
  • the random access priority configured by the network device for the small data transmission service is random access priority #2 (second random access priority).
  • the random access priority corresponding to service #1 includes random access priority #1 and random access priority #2.
  • Network devices are configured with random access priorities for different characteristics. For example, network devices are configured with random access priority #1 for network slicing, random access priority #2 for small data transmission, and random access priority for coverage enhancement. #3, configure random access priority #4 for limited capabilities, and configure random access priority #5 for MPS/MCS, where each random access priority can be different, or some random access priorities can be the same For example, random access priority #2 and random access priority #4 may be the same, and this application does not limit whether the random access priorities of different features are the same, and the number of features applicable to each random access priority .
  • the random access priority #1 is different from the random access priority #2, at least one of the parameters of the random access priority #1, the high priority power boost step size and the scaling factor BI, is different from the random access priority #1.
  • the high-priority power boost step size of random access priority #1 is different from that of random access priority #2, or the scaling factor BI of random access priority #1 is different from that of random access priority #2.
  • the input priority #2 is different, or the high-priority power boost step size and scaling factor BI of the random access priority #1 are different from the random access priority #2. If the random access priority #2 is the same as the random access priority #4, the high-priority power boost step size and the scaling factor BI of the random access priority #2 are the same as those of the random access priority #4.
  • the terminal device may determine the random access priority corresponding to the service according to the characteristics of the initiated service and the random access priorities corresponding to different characteristics configured by the network device.
  • the random access resources of the air interface are divided into at least two random access resource parts, and each random access resource part may be called a random access channel partition (also called a random access channel part, a random access channel area, random access channel division, random access resource partition, random access resource part, random access resource area, random access resource division, this application does not limit this), different random access channel divisions correspond to different characteristics.
  • a random access channel partition also called a random access channel part, a random access channel area, random access channel division, random access resource partition, random access resource part, random access resource area, random access resource division, this application does not limit this
  • different random access channel divisions correspond to different characteristics.
  • Different random access channel partitions can be understood as dividing the hardware and/or software resources on the random access channel into different logical partitions according to a certain strategy. Terminal devices that use a random access channel partition for random access only The hardware/software resources within the allocated resource range of the random access channel partition can be used to initiate random access.
  • the random access resources are divided into four random access channel partitions, including random access channel partition #1, random access channel partition #2, random access channel partition #3, and random access channel partition #4.
  • the features corresponding to the random access channel partition #1 include network slice group #1, small data transmission #1, and MPS #1.
  • Features corresponding to random access channel partition #2 include network slice group #2, small data transmission #2, and MPS #2.
  • Features corresponding to random access channel partition #3 include network slice group #3 and capability limitation #3.
  • the features corresponding to the random access channel partition #4 include network slice group #4, small data transmission #4, MPS #4, MCS #4, and limited capability #4.
  • random access resources including hardware/software resources
  • a network slice group includes at least one network slice, and network slices in different network slice groups deployed on the same network device are different.
  • the small data transmission service can be divided into different levels according to the number of data packets generated by the service.
  • the small data transmission service can be divided into small data transmission #1 service and small data transmission #2 service, where the small data transmission #1 service generates The number of data packets is smaller than the first threshold, the number of data packets generated by the small data transmission #2 service is smaller than the second threshold, and the first threshold is different from the second threshold.
  • the MPS service can be divided into different MPS characteristics with reference to at least one of priority level, transmission delay, availability and reliability, ability to handle a large number of users and devices, or strong security.
  • the MPS service can be divided into MPS with reference to the priority level #1, MPS#2, MPS#3, and MPS#4, MPS#1, MPS#2, MPS#3, and MPS#4 are different in priority.
  • MPS#1, MPS#2, MPS#3, and MPS#4 are different in transmission delay.
  • the capability limitation can be divided into capability limitation #1, capability limitation #2, and capability limitation #3.
  • Capability Limited #4 For example, referring to the number of transmitting and receiving antennas, the capability limitation is divided into capability limitation #1, capability limitation #2, capability limitation #3, and capability limitation #4, then capability limitation #1, capability limitation #2, Capability limited #3 and capability limited #4 correspond to different numbers of receiving and transmitting antennas.
  • Coverage enhancement #1, coverage enhancement #2, and coverage enhancement #3 that appear later can be understood as different coverage enhancement features divided according to the distance between the terminal device and the network device, for example, coverage enhancement #1, coverage enhancement #2, coverage enhancement Enhancement #3 corresponds to a different distance between the terminal device and the network device.
  • features such as small data transmission, coverage enhancement, limited capacity, MPS or MCS may not be subdivided, or only some of the features may be subdivided, no matter which division method is used, different
  • the characteristics corresponding to the random access channel partitions are different. For example, if there is no feature subdivision for small data transmission, when the feature corresponding to random access channel partition #1 includes small data transmission, the feature corresponding to random access channel partition #2 will not include small data transmission. For another example, if features are subdivided for small data transmission, when the features corresponding to random access channel partition #1 include small data transmission #1, the features corresponding to random access channel partition #2 may include small data transmission #2.
  • Features such as enhanced coverage, limited capabilities, MPS or MCS can be deduced by analogy.
  • the network device configures random access priority #1 for random access channel partition #1, configures random access priority #2 for random access channel partition #2, and configures random access priority for random access channel partition #3.
  • Incoming priority #3, random access priority #4 is configured for random access channel partition #4.
  • the random access priority corresponding to the service includes Random access priority #2 and random access priority #3.
  • the embodiment of the present application does not limit the number of divided random access resources, the name of each divided random access resource part, the corresponding feature and the number of features of each random access resource part.
  • Step S220 the terminal device determines the random access priority used by the terminal device for random access by referring to the ranking of the first random access priority and the second random access priority.
  • Sorting can be understood as sequence, order, etc., and priority can also be used as a form of sorting. Assuming that the random access priority corresponding to the service includes random access priority #1 and random access priority #2, the terminal device When selecting a random access priority, whether to select random access priority #1 for random access, or to select random access priority #2 for random access is determined by random access priority #1 and random access priority The sort of #2 is determined.
  • the terminal device determines random access priority #1 as the random access priority used by the terminal device for random access. level, subsequent terminal devices use random access priority #1 to perform random access. If the ranking of random access priority #2 is higher than that of random access priority #1, the terminal device determines random access priority #2 as the random access priority used by the terminal device for random access, and the subsequent The terminal device performs random access using random access priority #2.
  • a service initiated by a terminal device corresponds to three features, and the three features include network slicing, small data transmission, and coverage enhancement.
  • the random access priority #1 corresponding to network slicing
  • the random access priority #2 corresponding to small data transmission
  • the random access priority #3 corresponding to coverage enhancement
  • the order of random access priority #2 random
  • the order of access priority #3 > the order of random access priority #1, ">" indicates that the order is higher (if the order is higher, the terminal device will choose first), then the terminal device will determine the order of random access priority #2
  • the random access priority used for random access is.
  • the following describes different ways for the terminal device to determine the random access priority used for random access when the network device is configured with random access priorities of at least two characteristics.
  • Fig. 3 is a flow chart of a method for determining random access priority provided by an embodiment of the present application.
  • the method 300 shown in FIG. 3 is a scheme in which the network device indicates to the terminal device the ordering of at least two random access priorities, including:
  • step S310 the network device sends random access priorities corresponding to at least two features to the terminal device, and correspondingly, the terminal device receives the random access priorities corresponding to the at least two features.
  • the random access priorities corresponding to at least two features are carried in a broadcast message, such as a system information block 1 (session information block, SIB) message.
  • a broadcast message such as a system information block 1 (session information block, SIB) message.
  • the random access priority corresponding to the at least two features may be carried in a message sent by other network devices to the terminal device, which is not limited in this application.
  • the random access priority corresponding to the at least two features includes at least two of the following:
  • Random access priority #1 corresponding to network slicing, random access priority #2 corresponding to small data transmission, random access priority #3 corresponding to coverage enhancement, random access priority #4 corresponding to capability limitation, Random access priority #5 corresponding to MPS or MCS.
  • the core network element sends the corresponding relationship between slices and slice groups (for example, the corresponding relationship between slice IDs and slice group IDs) to terminal devices, and the network device broadcasts the random access priority corresponding to the slice group to terminal devices (for example, the random access priority corresponding to the slice group identifier), so that the terminal device can determine the random access priority of a specific slice according to the correspondence between the slice and the slice group, and the random access priority corresponding to the slice group.
  • the corresponding relationship between slices and slice groups for example, the corresponding relationship between slice IDs and slice group IDs
  • the network device broadcasts the random access priority corresponding to the slice group to terminal devices ( For example, the random access priority corresponding to the slice group identifier), so that the terminal device can determine the random access priority of a specific slice according to the correspondence between the slice and the slice group, and the random access priority corresponding to the slice group.
  • a network element of the core network (such as AMF) sends the corresponding relationship between the slice and the slice group identifier to the terminal device through a NAS message:
  • Slice Group #1 ⁇ Slice 1, Slice 2 ⁇ ;
  • Slice group #3 ⁇ slice 3, slice 5 ⁇ .
  • the network device broadcasts the random access priority at the granularity of the slice group (the slice may be divided into slice groups according to the type of the slice), that is, the random access priority is associated with the identifier of the slice group.
  • the network device broadcasts at the granularity of features, and the broadcast message includes the identifier of small data transmission and the corresponding random access priority, the identifier of coverage enhancement and the corresponding random access priority, the identifier of limited capability and the corresponding The random access priority of the MPS, the identifier of the MPS and the corresponding random access priority, the identifier of the MCS and the corresponding random access priority.
  • the network device broadcasts with smaller features as the granularity.
  • the small data transmission feature if the small data transmission feature is divided into 3, small data transmission #1, small data transmission #2, and small data transmission #3, then The broadcast message includes the identification of small data transmission #1 and the corresponding random access priority, the identification of small data transmission #2 and the corresponding random access priority, the identification of small data transmission #3 and the corresponding random access priority class.
  • the broadcast message includes the identity of coverage enhancement #1 and the corresponding random access priority level, the identifier of coverage enhancement #2 and the corresponding random access priority, the identifier of coverage enhancement #3 and the corresponding random access priority.
  • the broadcast message includes the identifier of capability-restricted #1 and The corresponding random access priority, the identification of capability limited #2 and the corresponding random access priority, the identification of capability limited #3 and the corresponding random access priority.
  • the broadcast message includes the MPS (MCS) )#1 identifier and corresponding random access priority, MPS(MCS)#2 identifier and corresponding random access priority, MPS(MCS)#3 identifier and corresponding random access priority.
  • the network device may also broadcast random access priorities corresponding to different features in other manners, which is not limited in the present application.
  • the above step S310 is a method for a network device to configure random access priorities for different characteristics (configuration with characteristics as granularity). This may correspond to the manner 1 in the above step S210. In addition to this, there is another configuration method. This may correspond to mode 2 in step S210 (with random access channel partition as granularity), specifically as step S310':
  • Step S310' the network device sends the first correspondence and the second correspondence to the terminal device, the first correspondence includes the correspondence between random access channel partitions and features, and the second correspondence includes random access channel partitions and random access Correspondence of priority.
  • the terminal device receives the first correspondence and the second correspondence.
  • the random access resource of the air interface is divided into at least two random access channel partitions, and different random access channel partitions correspond to different characteristics.
  • the random access resources are divided into three random access channel partitions, including random access channel partition #1, random access channel partition #2, and random access channel partition #3.
  • the features corresponding to the random access channel partition #1 include network slice group #1, small data transmission #1, and MPS #1.
  • Features corresponding to random access channel partition #2 include network slice group #2, small data transmission #2, and MPS #2.
  • Features corresponding to random access channel partition #3 include network slice group #3 and capability limitation #3.
  • the MPS when dividing random access channel partitions, the MPS is divided into features corresponding to random access channel partitions #1 and #2.
  • the random access priority based on network slice and the random access priority based on MPS/MCS are configured in different versions of the cell (for example, the random access priority of MPS/MCS is in The 3rd generation partnership project (3rd generation partnership project, 3GPP) is configured in the cell of the R16 version, and the random access priority of the network slice is configured in the cell of the 3GPP R17 version), so when the network device configures the random access priority , the random access priority for network slicing and MPS/MCS cannot be configured in the same version IE.
  • 3rd generation partnership project 3rd generation partnership project, 3GPP
  • services including MPS/MCS features initiated by the terminal device can correspond to any random access channel partition in random access channel partition #1, random access channel partition #2, and random access channel partition #3.
  • the random access resources are used for random access.
  • the MPS/MCS feature can be regarded as the feature of the same level as the random access channel partition.
  • the embodiment of the present application also provides a possible implementation mode, that is, as shown in Figure 4, when the network device configures the random access priority at the granularity of the random access channel partition, network slicing, small data transmission, and coverage enhancement can be , capability limitation, and MPS/MCS and other features are grouped, and a feature set is formed after grouping, and each feature set corresponds to a random access channel partition.
  • the features may not be grouped, that is, one or more features correspond to a random access channel partition, that is to say, a random access channel partition may only correspond to one feature, and some table examples below include feature sets,
  • some table examples below may not include feature sets, which is not limited in this application.
  • a feature set in the present application may also be called a feature combination, and the feature set may include 0, 1, or multiple features, which is not limited in the present application.
  • the feature set includes 0 features, it means that the random access resource of the random access channel partition corresponding to the feature set may be a common random access resource, and the random access resource can be used for random access by any service.
  • the features in the first correspondence relationship take the network slice group as an example, and the first correspondence relationship can be shown in Table 1:
  • Table 1 includes the correspondence between random access channel partition identifiers and network slice group identifiers, and the terminal device can determine the random access channel partition corresponding to a specific network slice according to the identifier of the network slice group.
  • the second correspondence sent by the network device to the terminal device has the following two possible cell setting forms:
  • the first cell structure is a first cell structure:
  • the first layer of the cell structure including the second correspondence is the feature, and the second layer is the random access channel partition identifier.
  • the general definition of this cell can be shown in Table 2:
  • the random access priority of a specific feature is associated with the random access channel partition identifier, and the terminal device can determine the random access channel partition identifier corresponding to the specific feature according to the first correspondence, combined with the random access channel partition identifier in Table 2
  • the correspondence between the channel partition identifier and the random access priority determines the random access priority corresponding to a specific feature.
  • the second cell structure is the second cell structure:
  • the first layer of the cell structure including the second correspondence is the random access channel partition identifier
  • the second layer is the feature set.
  • the method 300 further includes:
  • step S311 the network device sends identification information to the terminal device, the identification information indicating the characteristics applicable to the random access priority corresponding to the random access channel partition, and correspondingly, the terminal device receives the identification information.
  • new identification information is added in the information element of the same layer or the lower layer of the feature name, which is used to indicate which features in the feature set the random access priority in the current random access channel partition ID applies to.
  • the identification information may be 1-bit information newly added in the information element of the same layer or the lower layer of the feature name, such as a flag (flag), or an indicator (indicator), when the 1-bit information is represented as 1, It indicates that the random access priority in the current random access channel partition identifier is applicable to the feature corresponding to the feature name, or the identification information can also be indicated in other ways, which is not limited in this application.
  • flag flag
  • indicator indicator
  • the random access priority corresponding to random access channel partition #1 is random access priority #1
  • the feature set corresponding to random access channel partition #1 includes network slice group #1 and small data transmission #1.
  • the identification information of cells of the same level as network slice group #1 (feature name) is set to true, and the identification information of cells of the same level as small data transmission #1 (feature name) is set to false or default.
  • the cell at the same layer or at the next layer of network slice group #1 includes identification information, and the cell at the same layer or at the next layer of small data transmission #1 does not include identification information.
  • the random access priority corresponding to network slice group #1 is random access priority #1
  • the random access priority corresponding to small data transmission #1 is not random access priority #1, in other words, random access
  • the applicable feature of priority #1 is network slice group #1
  • the unapplicable feature is small data transmission #1.
  • the first layer of the cell structure is the random access channel partition identifier
  • the second layer is the feature set and random access priority
  • the third layer is the feature name and identification information, that is, the random access channel of the first layer
  • the random access priority corresponding to the inbound channel partition identifier is given in the second layer, and the applicable features of the random access priority given by the second layer are reflected in the third layer identifier information, assuming that the identifier corresponding to the specific feature in the third layer information is set to true, or the same layer or the lower layer of the specific feature includes identification information, then the random access priority corresponding to the specific feature is the random access priority given by the second layer. If the identification information corresponding to a feature in the third layer is set to false or default, or the same layer or the lower layer of the specific feature does not include identification information, it means that the feature does not apply to the random access priority given by the second layer. class.
  • step S310' and the scheme in which the network equipment broadcasts random access priorities at the granularity of random access channel partitions in S311 are compared to the scheme in which the network equipment configures random access priorities at the granularity of features in step S310 In terms of broadcasting, the signaling overhead is small.
  • Step S320 the network device sends first indication information to the terminal device, the first indication information indicates the ranking of the first random access priority and/or the second random access priority, and correspondingly, the terminal device receives the first indication information.
  • the network device sends first indication information to the terminal device, where the first indication information indicates the ranking of at least two random access priorities, including the first random access priority and/or the second random access priority sorting.
  • the network device sends the first indication information to the terminal device, where the first indication information indicates that when the service corresponds to at least two features, the terminal device performs random access using a dedicated random access priority.
  • the first indication information indicates that when a service (a certain service initiated by the terminal device) corresponds to at least two features, the terminal device performs random access using a dedicated random access priority.
  • the dedicated random access priority is set by the network device and is used in the scenario where the service initiated by the terminal device corresponds to at least two features.
  • the dedicated random access priority can be different from the random access priority configured by the network device for any feature. class. For example, before the random access of the terminal device, a broadcast message of the network device may be received, and the broadcast message includes the dedicated random access priority.
  • Network devices can pre-configure dedicated random access priorities in multi-feature scenarios (a scenario in which one service corresponds to at least two characteristics) according to network-side resource conditions or operator policies. It should be understood that network devices can automatically It is suitable for modifying the special random access priority. For example, the terminal device has been resident in the network device, and the network device stores the capability information of the terminal device.
  • the broadcast of the first indication information may be performed through the following Way:
  • the information of the first indication information is added on the basis of the above Table 2 element (sorting), the position of the cell can be as shown in Table 4, which is not limited in this application.
  • the information of the first indication information is added on the basis of the above Table 3 element (sorting), the position of the cell may be as shown in Table 5, which is not limited in this application.
  • the sorting information elements in Table 4 and Table 5 can be assigned a value, and the order before and after the sorting can be determined according to the value of the assignment.
  • the corresponding random access priority includes random access priority #1 and random access priority #2, the order of random access priority #1 is 3, and the order of random access priority #2 is 2, then the terminal During the random access process, the device preferentially selects random access priority #2.
  • the device preferentially selects random access priority #2.
  • the smaller the ranking value, the higher the ranking, and the higher the priority of the terminal device when selecting of course, it can also be vice versa , the greater the value of the ranking, the higher the ranking, and the higher the priority of the terminal device when selecting, which is not limited in this application.
  • the sorting in Table 4 is associated with the random access priority of the first-level cell-specific features. If the same feature corresponds to different random access channel partitions, the random access priority ranking of the different random access channel partitions is identical. For example, network slice group #1 corresponds to random access channel partition #1, network slice group #2 corresponds to random access channel partition #2, but both network slice group #1 and network slice group #2 belong to network slice features, so random The random access priorities corresponding to the access channel partition #1 and the random access channel partition #2 are the same.
  • the sorting in Table 5 is associated with the first-level cell random access channel partition identifier, and is effective for the characteristics of the random access channel partition that include the identification information (or the identification information is set to true).
  • the features corresponding to random access channel partition #1 include network slice group #1 and small data transmission #1, and both network slice group #1 and small data transmission #1 include identification information (or network slice group #1 and small data transmission #1
  • the identification information of data transmission #1 is set to true)
  • the random access priority corresponding to random access channel partition #1 is random access priority #1
  • the order of random access priority #1 is 3, that is Indicates that the random access priorities corresponding to network slice group #1 and small data transmission #1 are both random access priority #1, and the order of random access priority #1 is 3.
  • the cell structure exemplified in Table 5 can save signaling overhead compared with the cell structure exemplified in Table 4 (configured at a granularity of features) when the random access channel partition corresponds to at least two features.
  • the first indication information is a newly added information element in the information element structure shown in Table 2 or Table 3, and the information element is associated with a feature. Therefore, if there is no ranking in the cell structure corresponding to a random access channel partition identifier, the random access priority corresponding to the random access channel partition identifier may be defaulted to be the lowest (Table 5). Or if there is no ordering in the cell structure corresponding to a certain feature, the random access priority corresponding to this feature can be defaulted to be the lowest (Table 4).
  • Table 6 shows the ordering of random access priorities corresponding to some features.
  • a new table is added to indicate the ordering of random access priorities corresponding to different random access channel partitions, corresponding to the second signal of the second correspondence
  • the element setting form, as shown in Table 7, may indicate the order of random access priorities corresponding to different random access channel partitions.
  • the MPS/MCS feature is regarded as an example of features at the same level as the random access channel partition, and the service including the MPS/MCS feature initiated by the terminal device can be from random access channel partition #1, random access
  • the network device configures random access at the granularity of the random access channel partition
  • the random access priority will be configured separately for the MPS/MCS feature, so the order of the random access priority will also be configured separately for the MPS/MCS feature.
  • a new table indicates the order of random access priority parameters (including high priority power boost step size and scaling factor BI) corresponding to different features , corresponding to the first information element setting form of the second correspondence, as shown in Table 8, may indicate the ordering of parameters of random access priorities corresponding to different features.
  • a new table indicates the order of random access priority parameters (including high priority power boost step size and scaling factor BI) corresponding to different features , corresponding to the second information element setting form of the second correspondence, as shown in Table 9, may indicate the ordering of parameters of random access priorities corresponding to different random access channel partitions.
  • the ordering of the different random access priority parameters shown in Table 8 and Table 9 is independent, that is, when the terminal device selects the random access priority parameter, it can select the higher priority power boost step size , and the scaling factor BI of the top order, the smaller the value of the order, the higher the order, and the higher the priority of the terminal device.
  • the value of P3 in the high-priority power boosting step size is the smallest
  • the value of Q1 in the scaling factor BI is the smallest
  • the terminal device selects the high priority parameter corresponding to the random access channel partition #3 when selecting the random access priority parameter.
  • the priority power boost step size, and the scaling factor BI corresponding to the random access channel partition #1.
  • the high-priority power boost step size and scaling factor BI can be selected separately, which is more flexible than mode 2, and compared with mode 3, mode 2 saves signaling overhead.
  • Step S330 the terminal device determines the random access priority corresponding to the first feature and the second random access priority corresponding to the second feature, where the first feature and the second feature are features corresponding to the service.
  • the terminal device determines the first random access priority corresponding to the first feature and the second random access priority corresponding to the second feature through the random access priorities corresponding to at least two features sent by the network device.
  • the specific determination process of the access priority refer to method 1 in step S210.
  • the terminal device may refer to the first correspondence and the second correspondence to determine the first random access priority corresponding to the first feature and the second random access priority corresponding to the second feature .
  • the features corresponding to the service initiated by the terminal device include a first feature and a second feature, wherein the first feature is network slice #1, the second feature is small data transmission #2, and the network slice #1 is determined with reference to the first correspondence
  • the corresponding random access channel partition is random access channel partition #1
  • the random access channel partition corresponding to small data transmission #2 is random access channel partition #2.
  • the first The random access priority corresponding to random access channel partition #1 is determined as random access priority #1
  • the random access priority corresponding to random access channel partition #2 is random access priority # 2. Then it is determined that the random access priority corresponding to the service includes random access priority #1 and random access priority #2.
  • the terminal device needs to determine the first random access priority corresponding to the first feature and the second random access priority corresponding to the second feature in combination with the identification information. That is, corresponding to the above steps S310' and S311, the terminal device can refer to the first correspondence, the second correspondence, and the identification information to determine the first random access priority corresponding to the first feature and the second random access priority corresponding to the second feature. Enter priority.
  • the first feature is network slice #1
  • the second feature is small data transmission #2.
  • the random access channel partition corresponding to network slice #1 is random access channel partition #1
  • the small data transmission is random access channel partition #2
  • the random access priority #1 corresponding to random access channel partition #1 is determined with reference to the second correspondence and identification information.
  • the applicable feature is network slicing #1
  • random access priority #2 corresponding to random access channel partition #2 is applicable to small data transmission #2.
  • the random access priority corresponding to the first service includes random access priority #1 and random access priority #2.
  • step S310 is a scheme of indicating the random access priority of at least two features
  • step S310' and step S311 are another parallel scheme of indicating the random access priority of at least two features.
  • step S310' and step S311 can be carried in the same broadcast message.
  • step S310' and step S311 may be separately or simultaneously carried in messages sent by other network devices to the terminal device, which is not limited in this application.
  • step S310 and step S320 are a solution for the network device to issue random access priorities corresponding to at least two characteristics and the ordering of different random access priorities.
  • Step S310', steps S311 and S320 are network Another solution in which the device delivers random access priorities corresponding to at least two features and the ranking of different random access priorities.
  • step S310 and step S320 may be carried in the same broadcast message (or a message sent by other network devices to the terminal device).
  • step S310' the information in steps S311 and S320 may be carried in the same broadcast message (or a message sent by other network devices to the terminal device).
  • step S340 the terminal device refers to the first indication information to determine a random access priority used by the terminal device for random access.
  • the terminal device determines the order of the first random access priority and the second random access priority with reference to the first indication information, and determines the random access priority with the highest ranking as the random access priority used for subsequent random access. priority.
  • the service initiated by the terminal device corresponds to three characteristics, including network slice group #1, small data transmission #2, MPS, and the random access priority corresponding to network slice group #1 is random access priority #1 , the random access priority corresponding to small data transmission #2 is random access priority #2, the random access priority corresponding to MPS is random access priority #3, assuming that the first indication information indicates the random access priority Ranking of #2>ranking of random access priority #3>ranking of random access priority #1, the terminal device determines random access priority #2 as the random access priority used for random access.
  • the method for the terminal device to refer to the first indication information to determine the random access priority used for random access is similar to the above description, and will not be repeated here.
  • method 300 also includes:
  • Step S350 in the case that the terminal device fails to perform random access for the first time using the random access priority, the terminal device determines the random access priority used for random access again.
  • the terminal device may refer to the first indication information to determine the random access priority used for the second random access.
  • the terminal device will assign random access priority #2 It is determined as the random access priority used for the first random access.
  • the terminal device determines the random access priority #3 as the second random access priority #3.
  • the random access priority used for access if the second random access fails, the random access priority can be selected with reference to the first indication information to perform random access again until the random access is successful.
  • the terminal device fails to successfully access the network within a predetermined number of attempts or within a predetermined time, it is a random access failure, and the number of attempts or the predetermined time can be preconfigured.
  • the network device solves the problem of sending random access priorities corresponding to different features by the network device by adding the first indication information in the broadcast message, and the service initiated by the terminal device corresponds to at least two features. How should the terminal equipment select the random access priority to perform random access.
  • the method 300 can not only realize the centralized management of the behavior of the terminal equipment by the network equipment, but also reduce the implementation complexity of the terminal equipment.
  • FIG. 5 is an interaction flow diagram of another method for determining a random access priority provided by an embodiment of the present application.
  • the method 500 shown in FIG. 5 is a scheme in which the network device simply instructs the terminal device (compared to the method 300) to determine the random access priority used for random access from multiple random access priorities, including:
  • Step S510 is the same as step S310, refer to the description of S310, and will not be repeated here.
  • Step S510' is the same as step S310', refer to the description of S310', and will not repeat it here.
  • Step S511 is the same as step S311, refer to the description of S311, and will not repeat it here.
  • step S520 the network device sends second indication information to the terminal device, the second indication information instructing the terminal device to use the random access priority corresponding to the first feature, and correspondingly, the terminal device receives the second indication information.
  • the network device adds second indication information in the broadcast message (for example, SIB1).
  • the network device adds second indication information in an on demand broadcast (on demand SI) message.
  • on demand SI on demand SI
  • the terminal device will request the network device for the second indication information, and the network device broadcasts the second indication information to the requesting terminal device, and there may be one, two, or more requesting terminal devices.
  • the network device sends RRC signaling to the terminal device, where the RRC signaling includes the second indication information.
  • the network device may also send the second indication information to the terminal device in other manners, which is not limited in the present application.
  • the second indication information can be broadcast in the following manner:
  • the position of the second indication information in the cell can be as shown in Table 10 Show:
  • the terminal device selects the random access priority corresponding to the network slice (the first feature), that is, when the service initiated by the terminal device includes network slice and small data transmission, use The random access priority corresponding to the network slice is used for random access.
  • the terminal device does not use the random access priority corresponding to the first feature to perform random access.
  • the second indication information instructs the terminal device to use the random access priority corresponding to small data transmission, but the service initiated by the terminal device does not include small data transmission. At this time, the terminal device does not select the random access priority corresponding to small data transmission. level for random access.
  • the network device adds second indication information in the broadcast message (such as SIB1), which corresponds to the scheme of setting the random access priority at the granularity of the random access channel partition, and corresponds to the second A cell setting form, the position of the second indication information in the cell can be as shown in Table 11:
  • the terminal device selects random access channel partition #1 (first The random access priority corresponding to the feature is the feature that the identification information in the random access channel partition #1 is true, or the first feature is the feature that includes the identification information in the random access channel partition #1), that is, the random access priority initiated by the terminal device
  • the characteristics corresponding to the business include network slicing (corresponding to random access channel partition #1, the identification information of the network slice is set to true, or the network slice includes identification information) and small data transmission (corresponding to random access channel partition #2), use
  • the random access priority corresponding to the random access channel partition #1 performs random access.
  • a table representing the second indication information is added, corresponding to the first cell setting form of the second correspondence, representing the second indication information
  • the form is shown in Table 12 for example:
  • the random access priority corresponding to the small data transmission may be selected for random access.
  • "-" means false or default, and the "-" that appears in the following table is also understood.
  • the terminal device selects the random access priority corresponding to the random access channel partition #2 to perform random access.
  • the MPS/MCS feature is regarded as an example of features at the same level as the random access channel partition.
  • the service including the MPS/MCS feature initiated on the terminal device can be from random access channel partition #1, random access
  • the network device configures the random access priority at the granularity of the random access channel partition.
  • the random access priority will be configured separately for the MPS/MCS feature, so the MPS/MCS will be treated separately when configuring the second indication information.
  • a table representing the second indication information is added, corresponding to the first cell setting form of the second correspondence, representing the second indication information
  • the form is shown in Table 14 for example:
  • the terminal device selects the high-priority power boost step size corresponding to MPS and the scaling factor BI corresponding to network slice for random access.
  • the terminal device selects the high-priority power boost step size corresponding to MPS, and cannot select the scaling factor BI only by referring to the second indication information.
  • the terminal device selects the high-priority power boost step size corresponding to random access channel partition #2 and the scaling factor BI corresponding to random access channel partition #1 to perform random access.
  • step S510 is a scheme of indicating the random access priority of at least two features
  • step S510' and step S511 are another parallel scheme of indicating the random access priority of at least two features.
  • step S510' and step S511 can be carried in the same broadcast message.
  • step S510 and step S520 are a solution for the network device to issue random access priorities corresponding to at least two features and the second indication information
  • step S510', steps S511 and S520 are for the network device to issue at least Another scheme of the random access priority corresponding to the two features and the second indication information.
  • step S510 and step S520 may be carried in the same broadcast message (or a message sent by other network devices to the terminal device).
  • step S510' the information in steps S511 and S520 may be carried in the same broadcast message (or a message sent by other network devices to the terminal device).
  • Step S530 is the same as step S330, refer to the description of S330, and will not be repeated here.
  • Step S540 the terminal device refers to the second indication information to determine the random access priority used by the terminal device to perform random access.
  • the terminal device refers to the second indication information to determine to use the random access priority corresponding to the first feature, that is, to determine the random access priority corresponding to the first feature as the random access priority used by the terminal device for random access.
  • the service initiated by the terminal device corresponds to three characteristics, including network slice group #1, small data transmission #2, MPS, and the random access priority corresponding to network slice group #1 is random access priority #1 , the random access priority corresponding to small data transmission #2 is random access priority #2, and the random access priority corresponding to MPS is random access priority #3, assuming that the second indication information indicates that the terminal device uses network slicing corresponding random access priority, the terminal device determines random access priority #1 as the random access priority used for random access.
  • the terminal device refers to the second indication information and the first information to determine the random access priority used for random access, and the first information includes at least one of the following: service delay requirement information or the terminal device's capability information.
  • the terminal device when the terminal device cannot determine the random access priority used for random access by referring to the second indication information, it also needs to determine the random access priority used for random access in combination with the first information, assuming that the second indication information The terminal device is instructed to use the random access priority corresponding to the small data transmission, but the service initiated by the terminal device does not include the small data transmission, which needs to be determined in combination with the first information.
  • how the terminal device determines the random access priority used for random access by referring to the first information may refer to step S630 of the method 600 .
  • method 500 also includes:
  • step S550 when the terminal device fails to perform random access for the first time using the random access priority, the terminal device determines the random access priority to be used for random access again.
  • the terminal device when the terminal device uses the random access priority to fail random access within a predetermined number of attempts or within a predetermined time, refers to the first information to determine the random access priority used for the second random access. If the second random access fails, it can also refer to the first information to select the random access priority to perform random access again until Random access is successful.
  • the terminal device can select a random access priority for random access based on the simple instruction information issued by the network device and when the service initiated by the terminal device corresponds to at least two characteristics. This method is a compromise solution. Compared with the method 300, the broadcast signaling overhead of the network device is saved, and the implementation of the terminal device has a certain degree of flexibility.
  • FIG. 6 is an interaction flow diagram of another method for determining a random access priority provided by an embodiment of the present application.
  • the method 600 shown in FIG. 6 is a scheme in which the terminal device can determine the random access priority used for random access from at least two random access priorities independently of the indication of the network device, including:
  • Step S610 is the same as steps S310 and S510, refer to the description of S310, and will not be repeated here.
  • Step S610' is the same as steps S310' and S510', refer to the description of S310', and will not repeat them here.
  • Step S611 is the same as steps S311 and S511, refer to the description of S311, and will not be repeated here.
  • step S610 is a scheme of indicating the random access priority of at least two features
  • step S610' and step S611 are another parallel scheme of indicating the random access priority of at least two features.
  • step S610' and step S611 can be carried in the same broadcast message.
  • Step S620 is the same as steps S320 and S520, refer to the description of S320, and will not be repeated here.
  • Step S630 the terminal device refers to the first information to determine the random access priority used for random access, and the first information includes at least one of the following: service delay requirement information or capability information of the terminal device.
  • the terminal device determines the order of the random access priorities with reference to the first information, and then determines the highest-ranked random access priority as the random access priority used for random access.
  • the terminal device refers to the first information to determine the order of random access priorities. It may be that the terminal device refers to the first information to determine the order of random access priorities, or it may be that the terminal device refers to the first information and other information (which may be The first indication information, the second indication information, or information other than the first indication information and the second indication information) determine the ranking of random access priorities. It is also understood that the terminal device referred to the first indication information or the second indication information to determine the ranking of the random access priority mentioned above is not limited in this application.
  • the features corresponding to the service initiated by the terminal device include network slice #2, mission-critical service, and limited capability #3, and the terminal device determines that network slice #2, mission-critical service, and limited capability #3 correspond to it according to the broadcast message
  • the random access priority of each feature where the value of the random access priority parameter corresponding to each feature is shown in Table 16.
  • the terminal device considers the delay requirement information of the initiated service, and gives priority to satisfying the service requirement of low delay, that is, the scaling factor BI of the random access priority parameter preferably selects a smaller value.
  • the scaling factor BI takes precedence Select 0, followed by 0.25 and 0.75, that is to say, according to the order of random access priority according to the delay requirement information, from front to back, the random access priority corresponding to network slice #2, and the random access priority corresponding to MCS level, the random access priority corresponding to capability limited #3.
  • the value of the high priority power boost step should be less than half of 10dB (ie 5dB), As shown in Table 16, although network slice #2 has the highest requirement for low latency, it requires a high-priority power boost step size of 6dB greater than 5dB. Access priority for random access.
  • the method of determining the random access priority used for random access in the above example is only an example, and the terminal device may also refer to the average value of the random access priority parameters of at least two characteristics corresponding to the service to determine the subsequent The random access priority used for random access, or the terminal device may also refer to other methods to determine the random access priority used for subsequent random access, which is not limited in this application.
  • the above rules for the terminal device to determine the random access priority for random access from the random access priority with reference to the first information can be realized by the terminal device itself (self-realization may be a selection strategy of the terminal device, and the terminal device The manufacturer decides on its own), or it can be the pre-configuration information of the terminal device (all terminal devices, that is, terminal devices from different manufacturers refer to the same selection strategy for pre-configuration of the standard protocol).
  • method 600 also includes:
  • Step S640 when the terminal device fails to perform random access for the first time using the random access priority, the terminal device determines a random access priority for another random access.
  • the terminal device may refer to the first information to determine the priority used for the second random access.
  • the process of determining the random access priority is similar to the process in which the terminal device refers to the first information to determine the random access priority used for the first random access, and details are not described here. If the second random access fails, the random access priority can also be selected with reference to the first information to perform random access again until the random access succeeds.
  • the terminal device can select random access priorities corresponding to at least two features issued by the network device, and refer to predetermined rules to select a random access priority when the service initiated by the terminal device corresponds to at least two features. Random access priority for access. Compared with the methods 300 and 500, the method 600 saves signaling overhead and is more flexible in implementation of the terminal equipment.
  • At least one item (units) refers to one item (units) or multiple items (units)
  • at least two items (units) and “multiple items (units)” refer to two items (units) or Two (a) or more.
  • At least one of the following” or similar expressions refer to any combination of these items, including any combination of single or plural items.
  • at least one item (piece) of a, b, or c can represent: a, b, c, a-b, a-c, b-c, or a-b-c, where a, b, c can be single or multiple .
  • execution subject shown in Figure 3-6 is only an example, and the execution subject may also be a chip, a chip system, or a processor that supports the execution subject to implement the method shown in Figure 3-6. No limit.
  • the methods and operations implemented by the terminal equipment can also be implemented by components (such as chips or circuits) that can be used in the terminal equipment, and the methods and operations implemented by the network equipment can also be implemented by A component (such as a chip or a circuit) implementation that can be used in a network device.
  • components such as chips or circuits
  • a component such as a chip or a circuit
  • each network element such as a transmitting end device or a receiving end device, includes a corresponding hardware structure and/or software module for performing each function in order to realize the above functions.
  • the present application can be implemented in the form of hardware or a combination of hardware and computer software. Whether a certain function is executed by hardware or computer software drives hardware depends on the specific application and design constraints of the technical solution. Skilled artisans may use different methods to implement the described functions for each specific application, but such implementation should not be regarded as exceeding the scope of the present application.
  • the embodiment of the present application can divide the functional modules of the transmitting end device or the receiving end device according to the above method example, for example, each functional module can be divided corresponding to each function, or two or more functions can be integrated into one processing module middle.
  • the above-mentioned integrated modules can be implemented in the form of hardware or in the form of software function modules. It should be noted that the division of modules in the embodiment of the present application is schematic, and is only a logical function division, and there may be other division methods in actual implementation. In the following, description will be made by taking the division of each functional module corresponding to each function as an example.
  • Fig. 7 is a schematic block diagram of a communication device provided by an embodiment of the present application.
  • the communication device 700 shown in FIG. 7 includes a transceiver unit 710 and a processing unit 720 .
  • the transceiver unit 710 can communicate with the outside, and the processing unit 720 is used for data processing.
  • the transceiver unit 710 may also be called a communication interface or a communication unit.
  • the communication device 700 may further include a storage unit, which may be used to store instructions and/or data, and the processing unit 720 may read instructions or and/or data in the storage unit.
  • a storage unit which may be used to store instructions and/or data
  • the processing unit 720 may read instructions or and/or data in the storage unit.
  • the communication apparatus 700 may be used to perform the actions performed by the terminal device in the above method embodiment (method 200, 300, or 500).
  • the communication device 700 may be a terminal device
  • the transceiver unit 710 is used to perform the receiving or sending operation of the terminal device in the method embodiment above
  • the processing unit 720 is used to perform the internal processing of the terminal device in the method embodiment above operation.
  • the communications apparatus 700 may be a device including a terminal device.
  • the communication apparatus 700 may be a component configured in a terminal device, for example, a chip in the terminal device.
  • the transceiver unit 710 may be an interface circuit, a pin, and the like.
  • the interface circuit may include an input circuit and an output circuit
  • the processing unit 720 may include a processing circuit.
  • the processing unit 720 is configured to determine the first random access priority corresponding to the first feature and the second random access priority corresponding to the second feature, where the first feature and the second feature are service Corresponding features, and refer to the ranking of the first random access priority and the second random access priority to determine the random access priority used by the terminal device for random access.
  • the first feature or the second feature includes any of the following: network slicing, small data transmission, coverage enhancement, capability limitation, multimedia priority service, or mission critical service.
  • the transceiving unit 710 is configured to receive first indication information from the network device, where the first indication information indicates the ranking of the first random access priority and/or the second random access priority.
  • the ranking of the first random access priority and/or the second random access priority is determined based on first information, and the first information includes at least one of the following: service delay Requirement information, or capability information of terminal equipment.
  • the transceiver unit 710 is configured to receive second indication information from the network device, the second indication information instructing the terminal device to use the random access priority corresponding to the first feature, and the processing unit 720 is configured to refer to The second indication information determines the random access priority used by the terminal device to perform random access.
  • the processing unit 720 is further configured to refer to the second indication information and the first information to determine the random access priority used by the terminal device for random access, and the first information includes at least one of the following: Delay requirement information, or capability information of terminal equipment.
  • the processing unit 720 is further configured to refer to the first random access priority and the second random access priority The ranking of determines the random access priority used for the second random access.
  • the transceiver unit 710 is further configured to receive a first correspondence and a second correspondence from the network device, where the first correspondence includes a correspondence between a random access channel partition and a feature, and the second correspondence The relationship includes a correspondence between random access channel partitions and random access priorities, and the processing unit 720 is further configured to refer to the first correspondence and the second correspondence to determine the first random access priority and the first random access priority corresponding to the first feature. The second random access priority corresponding to the two characteristics.
  • the transceiver unit 710 is further configured to receive identification information from the network device, the identification information indicating a feature applicable to the random access priority corresponding to the random access channel partition, and the processing unit 720 is further configured to refer to the The first correspondence, the second correspondence, and the identification information determine a first random access priority corresponding to the first feature and/or a second random access priority corresponding to the second feature.
  • the communication device 700 shown in FIG. 7 may be used to perform the actions performed by the network device in the above method embodiment (method 300, or 500).
  • the communication device 700 may be a network device
  • the transceiver unit 710 is used to perform the receiving or sending operation of the network device in the method embodiment above
  • the processing unit 720 is used to perform the internal processing of the network device in the method embodiment above operation.
  • the communications apparatus 700 may be a device including a network device.
  • the communication apparatus 700 may be a component configured in a network device, for example, a chip in the network device.
  • the transceiver unit 710 may be an interface circuit, a pin, and the like.
  • the interface circuit may include an input circuit and an output circuit
  • the processing unit 720 may include a processing circuit.
  • the transceiver unit 710 is configured to send the first correspondence and the second correspondence to the terminal device, the first correspondence includes the correspondence between the random access channel partition and the feature, and the second correspondence Including the correspondence between the random access channel partition and the random access priority, the first correspondence and the second correspondence are used to determine the first random access priority corresponding to the first feature and/or the first random access priority corresponding to the second feature
  • the second random access priority, the first feature and the second feature are features corresponding to the service
  • the transceiver unit 710 is also used to send the first indication information to the terminal device, the first indication information indicates the first random access priority rank and/or the ordering of the second random access priority.
  • the transceiver unit 710 is configured to send the first correspondence and the second correspondence to the terminal device, the first correspondence includes the correspondence between the random access channel partition and the feature, and the second correspondence Including the correspondence between the random access channel partition and the random access priority, the first correspondence and the second correspondence are used to determine the first random access priority corresponding to the first feature and/or the first random access priority corresponding to the second feature
  • the second random access priority, the first feature and the second feature are features corresponding to the service
  • the transceiver unit 710 is also used to send second indication information to the terminal device, the second indication information instructs the terminal device to use the first feature corresponding random access priority.
  • the first feature or the second feature includes any of the following: network slicing, small data transmission, coverage enhancement, limited capability, multimedia priority service, or mission critical service.
  • the transceiving unit 710 is further configured to send identification information to the terminal device, where the identification information indicates the characteristics applicable to the random access priority corresponding to the random access channel partition, where the identification information is used to determine the first The first random access priority corresponding to the feature and/or the second random access priority corresponding to the second feature.
  • the embodiment of the present application further provides a communication device 800 .
  • the communication device 800 includes a processor 810, the processor 810 is coupled with a memory 820, the memory 820 is used to store computer programs or instructions and/or data, and the processor 810 is used to execute the computer programs or instructions and/or data stored in the memory 820 , so that the methods in the above method embodiments are executed.
  • the communication device 800 includes one or more processors 810 .
  • the communication device 800 may further include a memory 820 .
  • the communication device 800 may include one or more memories 820 .
  • the memory 820 may be integrated with the processor 810, or set separately.
  • the communication device 800 may further include a transceiver 830 and/or a communication interface, and the transceiver 830 and/or the communication interface are used for receiving and/or sending signals.
  • the processor 810 is configured to control the transceiver 830 and/or the communication interface to receive and/or send signals.
  • the communication apparatus 800 is used to implement the operations performed by the terminal device in the above method embodiments.
  • the processor 810 is used to implement the operations performed internally by the terminal device in the above method embodiments (such as step S210, step S220, step S330, step S340, step S350, step S530, step S540, step S550, step S620, Step S630, or the operation of step S640)
  • the transceiver 830 is used to implement the receiving or sending operation performed by the terminal device in the above method embodiment (such as step S310, step S310', step S311, step S320, step S510, Step S510', Step S511, Step S520, Step S610, Step S610', or Step S611).
  • the communication apparatus 800 is configured to implement the operations performed by the network device in the above method embodiments.
  • the processor 810 is used to implement the operations performed by the network device in the above method embodiments
  • the transceiver 830 is used to realize the receiving or sending operations performed by the network device in the above method embodiments (for example, step S310, step S310', step S311, step S320, step S510, step S510', step S511, step S520, step S610, step S610', or step S611).
  • the embodiment of the present application also provides a communication device 900, and the communication device 900 may be a terminal device or a chip.
  • the communication apparatus 900 may be configured to perform the operations performed by the terminal device in the foregoing method embodiment (method 200, 300, or 500).
  • FIG. 9 shows a schematic structural diagram of a simplified terminal device.
  • the terminal device includes a processor, a memory, a radio frequency circuit, an antenna, and an input and output device.
  • the processor is mainly used to process communication protocols and communication data, control terminal equipment, execute software programs, process data of software programs, and the like.
  • Memory is primarily used to store software programs and data.
  • the radio frequency circuit is mainly used for the conversion of the baseband signal and the radio frequency signal and the processing of the radio frequency signal.
  • Antennas are mainly used to send and receive radio frequency signals in the form of electromagnetic waves.
  • Input and output devices such as touch screens, display screens, and keyboards, are mainly used to receive data input by users and output data to users. It should be noted that some types of terminal equipment may not have input and output devices.
  • the processor When data needs to be sent, the processor performs baseband processing on the data to be sent, and then outputs the baseband signal to the radio frequency circuit.
  • the radio frequency circuit receives the radio frequency signal through the antenna, converts the radio frequency signal into a baseband signal, and outputs the baseband signal to the processor, and the processor converts the baseband signal into data and processes the data.
  • a memory may also be called a storage medium or a storage device. The memory may be set independently of the processor, or may be integrated with the processor, which is not limited in this embodiment of the present application.
  • the antenna and the radio frequency circuit with the transceiver function may be regarded as the transceiver unit of the terminal device, and the processor with the processing function may be regarded as the processing unit of the terminal device.
  • the terminal device includes a transceiver unit 910 and a processing unit 920 .
  • the transceiver unit 910 may also be called a transceiver, a transceiver, a transceiver device, or a transceiver circuit, and the like.
  • the processing unit 920 may also be called a processor, a processing board, a processing module, a processing device, and the like.
  • the device in the transceiver unit 910 for realizing the receiving function can be regarded as a receiving unit
  • the device in the transceiver unit 910 for realizing the sending function can be regarded as a sending unit, that is, the transceiver unit 910 includes a receiving unit and a sending unit.
  • the receiving unit may sometimes be called a receiver, a receiver, a receiving device or a receiving circuit, etc.
  • the sending unit may sometimes be called a transmitter, a transmitter, a transmitting device or a transmitting circuit, etc.
  • the processing unit 920 is configured to perform processing actions on the terminal device side in FIG. 2 .
  • the processing unit 920 is configured to execute the processing steps in steps S210 and S220 in FIG. 2 .
  • the processing unit 920 is configured to execute the processing steps in steps S330, S340, or S350 in FIG. 3; the transceiver unit 910 is configured to execute steps S310, S310′, S311, Or the transceiving operation in S320.
  • the processing unit 920 is configured to execute the processing steps in steps S530, S540, or S550 in FIG. 5; the transceiver unit 910 is configured to execute steps S510, S510′, S511, Or the transceiver operation in S520.
  • the processing unit 920 is configured to execute the processing steps in steps S620, S630, or S640 in FIG. 6; the transceiver unit 910 is configured to execute steps S610, S610', or S611 in FIG. 6 Sending and receiving operations in .
  • FIG. 9 is only an example rather than a limitation, and the foregoing terminal device including a transceiver unit and a processing unit may not depend on the structure shown in FIG. 9 .
  • the chip When the communication device 900 is a chip, the chip includes a transceiver unit and a processing unit.
  • the transceiver unit may be an input-output circuit or a communication interface
  • the processing unit may be a processor or a microprocessor or an integrated circuit integrated on the chip.
  • the embodiment of the present application also provides a communication device 1000, and the communication device 1000 may be a network device or a chip.
  • the communication apparatus 1000 may be configured to perform the operations performed by the network device in the foregoing method embodiments.
  • FIG. 10 shows a simplified structural diagram of the network device.
  • the network device includes part 1010 and part 1020 .
  • Part 1010 includes antenna and radio frequency circuit.
  • the antenna is mainly used for transmitting and receiving radio frequency signals
  • the radio frequency circuit is mainly used for converting radio frequency signals and baseband signals.
  • the 1020 part includes a memory and a processor, which are mainly used for baseband processing and controlling network devices.
  • Part 1010 may generally be referred to as a transceiver unit, a transceiver, a transceiver circuit, or a transceiver.
  • the part 1020 is usually the control center of the network device, which can generally be referred to as a processing unit, and is used to control the network device to perform the processing operations on the network device side in the foregoing method embodiments.
  • the device used to realize the receiving function in part 1010 can be regarded as a receiving unit, and the device used to realize the sending function can be regarded as a sending unit, that is, part 1010 includes a receiving unit and a sending unit.
  • the receiving unit may also be called a receiver, receiver, or receiving circuit, etc.
  • the sending unit may be called a transmitter, transmitter, or transmitting circuit, etc.
  • the processor When data needs to be sent, the processor performs baseband processing on the data to be sent, and then outputs the baseband signal to the radio frequency circuit.
  • the radio frequency circuit receives the radio frequency signal through the antenna, converts the radio frequency signal into a baseband signal, and outputs the baseband signal to the processor, and the processor converts the baseband signal into data and processes the data.
  • Section 1020 may include one or more single boards, and each single board may include one or more processors and one or more memories. For ease of illustration, only one memory and processor are shown in FIG. 10 .
  • the processor is used to read and execute programs in the memory to implement baseband processing functions and control network devices. If there are multiple single boards, each single board can be interconnected to enhance the processing capability. As an optional implementation manner, multiple boards may share one or more processors, or multiple boards may share one or more memories.
  • the transceiving unit in part 1010 is used to perform the steps related to transceiving performed by the network device in the embodiment shown in FIG. S320, S510, step S510', step S511, step S520, step S610, step S610', or step S611).
  • Part 1020 is used to execute steps related to processing executed by the network device in the embodiment shown in FIG. 3/5/6.
  • FIG. 10 is only an example rather than a limitation, and the foregoing network device including a transceiver unit and a processing unit may not depend on the structure shown in FIG. 10 .
  • the chip When the communication device 1000 is a chip, the chip includes a transceiver unit and a processing unit.
  • the transceiver unit may be an input-output circuit or a communication interface;
  • the processing unit is a processor or a microprocessor or an integrated circuit integrated on the chip.
  • the embodiment of the present application also provides a communication device 1100 .
  • the communication device 1100 includes a logic circuit 1110 and an input/output interface (input/output interface) 1120 .
  • the logic circuit 1110 may be a processing circuit in the communication device 1100 .
  • the logic circuit 1110 may be coupled to the storage unit, and invoke instructions in the storage unit, so that the communication device 1100 can implement the methods and functions of the various embodiments of the present application.
  • the input/output interface 1120 may be an input/output circuit in the communication device 1100, which outputs information processed by the communication device 1100, or inputs data or signaling information to be processed into the communication device 1100 for processing.
  • the communication apparatus 1100 is configured to implement the operations performed by the terminal device in the above method embodiments.
  • the logic circuit 1110 is used to implement the processing-related operations performed by the terminal device in the above method embodiments, for example, the processing-related operations performed by the terminal device in the embodiments shown in FIGS. 3-6 , and the input/output interface 1120 It is used to implement the sending and/or receiving related operations performed by the terminal device in the above method embodiments, for example, the sending and/or receiving related operations performed by the terminal device in the embodiments shown in FIGS. 3-6 .
  • the operations performed by the logic circuit 1110 refer to the above description of the processing unit 720
  • the operations performed by the input/output interface 1120 refer to the above description for the transceiver unit 710 , which will not be repeated here.
  • the communications apparatus 1100 is configured to implement the operations performed by the network device in the foregoing method embodiments.
  • the logic circuit 1110 is used to implement the processing-related operations performed by the network device in the above method embodiments, for example, the processing-related operations performed by the network device in the embodiments shown in FIGS. 3-6 , and the input/output interface 1120 It is used to implement the sending and/or receiving related operations performed by the network device in the above method embodiments, for example, the sending and/or receiving related operations performed by the network device in the embodiments shown in FIGS. 3-6 .
  • the operations performed by the logic circuit 1110 refer to the above description of the processing unit 820
  • the operations performed by the input/output interface 1120 refer to the above description for the transceiver unit 810 , which will not be repeated here.
  • the above communication device may be one or more chips.
  • the communication device may be a field programmable gate array (field programmable gate array, FPGA), an application specific integrated circuit (ASIC), or a system chip (system on chip, SoC). It can be a central processor unit (CPU), a network processor (network processor, NP), a digital signal processing circuit (digital signal processor, DSP), or a microcontroller (micro controller unit) , MCU), can also be a programmable controller (programmable logic device, PLD) or other integrated chips.
  • CPU central processor unit
  • NP network processor
  • DSP digital signal processor
  • microcontroller micro controller unit
  • PLD programmable logic device
  • each step of the above method can be completed by an integrated logic circuit of hardware in a processor or an instruction in the form of software.
  • the steps of the methods disclosed in connection with the embodiments of the present application may be directly implemented by a hardware processor, or implemented by a combination of hardware and software modules in the processor.
  • the software module can be located in a mature storage medium in the field such as random access memory, flash memory, read-only memory, programmable read-only memory or electrically erasable programmable memory, register.
  • the storage medium is located in the memory, and the processor reads the information in the memory, and completes the steps of the above method in combination with its hardware. To avoid repetition, no detailed description is given here.
  • the processor in the embodiment of the present application may be an integrated circuit chip, which has a signal processing capability.
  • each step of the above-mentioned method embodiments may be completed by an integrated logic circuit of hardware in a processor or instructions in the form of software.
  • the above-mentioned processor may be a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components .
  • DSP digital signal processor
  • ASIC application-specific integrated circuit
  • FPGA field-programmable gate array
  • a general-purpose processor may be a microprocessor, or the processor may be any conventional processor, or the like.
  • the steps of the method disclosed in connection with the embodiments of the present application may be directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software modules in the decoding processor.
  • the software module can be located in a mature storage medium in the field such as random access memory, flash memory, read-only memory, programmable read-only memory or electrically erasable programmable memory, register.
  • the storage medium is located in the memory, and the processor reads the information in the memory, and completes the steps of the above method in combination with its hardware.
  • the memory in the embodiments of the present application may be a volatile memory or a nonvolatile memory, or may include both volatile and nonvolatile memories.
  • the non-volatile memory can be read-only memory (read-only memory, ROM), programmable read-only memory (programmable ROM, PROM), erasable programmable read-only memory (erasable PROM, EPROM), electronically programmable Erases programmable read-only memory (electrically EPROM, EEPROM) or flash memory.
  • Volatile memory can be random access memory (RAM), which acts as external cache memory.
  • RAM random access memory
  • SRAM static random access memory
  • DRAM dynamic random access memory
  • DRAM synchronous dynamic random access memory
  • SDRAM double data rate synchronous dynamic random access memory
  • ESDRAM enhanced synchronous dynamic random access memory
  • SLDRAM direct memory bus random access memory
  • direct rambus RAM direct rambus RAM
  • the present application also provides a computer-readable medium, the computer-readable medium stores program code, and when the program code is run on the computer, the computer is made to execute the program shown in Figure 3-6.
  • Example method For example, when the computer program is executed by a computer, the computer can implement the method executed by the network device or the method executed by the terminal device in the foregoing method embodiments.
  • the embodiments of the present application also provide a computer program product including instructions, which, when executed by a computer, enable the computer to implement the method executed by the network device or the method executed by the terminal device in the above method embodiments.
  • all or part of them may be implemented by software, hardware, firmware or any combination thereof.
  • software When implemented using software, it may be implemented in whole or in part in the form of a computer program product.
  • the computer program product includes one or more computer instructions. When the computer instructions are loaded and executed on the computer, the processes or functions according to the embodiments of the present application will be generated in whole or in part.
  • the computer can be a general purpose computer, a special purpose computer, a computer network, or other programmable devices.
  • the computer instructions may be stored in or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions may be transmitted from a website, computer, server or data center Transmission to another website site, computer, server or data center by wired (such as coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (such as infrared, wireless, microwave, etc.).
  • the computer-readable storage medium may be any available medium that can be accessed by a computer, or a data storage device such as a server or a data center integrated with one or more available media.
  • the available medium may be a magnetic medium (for example, a floppy disk, a hard disk, a magnetic tape), an optical medium (for example, a high-density digital video disc (digital video disc, DVD)), or a semiconductor medium (for example, a solid state disk (solid state disc, SSD)) etc.
  • a magnetic medium for example, a floppy disk, a hard disk, a magnetic tape
  • an optical medium for example, a high-density digital video disc (digital video disc, DVD)
  • a semiconductor medium for example, a solid state disk (solid state disc, SSD)
  • the network equipment and terminal equipment in the above-mentioned various device embodiments correspond to the network equipment and terminal equipment in the method embodiments, and the corresponding steps are performed by corresponding modules or units, for example, the communication unit (transceiver) performs the receiving or receiving in the method embodiments.
  • the communication unit transmits the receiving or receiving in the method embodiments.
  • other steps besides sending and receiving may be performed by a processing unit (processor).
  • processors for the functions of the specific units, reference may be made to the corresponding method embodiments. Wherein, there may be one or more processors.
  • a component may be, but is not limited to being, a process running on a processor, a processor, an object, an executable, a thread of execution, a program, and/or a computer.
  • an application running on a computing device and the computing device can be components.
  • One or more components can reside within a process and/or thread of execution and a component can be localized on one computer and/or distributed between two or more computers.
  • these components can execute from various computer readable media having various data structures stored thereon.
  • a component may, for example, be based on a signal having one or more packets of data (e.g., data from two components interacting with another component between a local system, a distributed system, and/or a network, such as the Internet via a signal interacting with other systems). Communicate through local and/or remote processes.
  • packets of data e.g., data from two components interacting with another component between a local system, a distributed system, and/or a network, such as the Internet via a signal interacting with other systems.
  • the disclosed systems, devices and methods may be implemented in other ways.
  • the device embodiments described above are only illustrative.
  • the division of the units is only a logical function division. In actual implementation, there may be other division methods.
  • multiple units or components can be combined or May be integrated into another system, or some features may be ignored, or not implemented.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be through some interfaces, and the indirect coupling or communication connection of devices or units may be in electrical, mechanical or other forms.
  • the units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place, or may be distributed to multiple network units. Part or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.
  • each functional unit in each embodiment of the present application may be integrated into one processing unit, each unit may exist separately physically, or two or more units may be integrated into one unit.
  • the functions described above are realized in the form of software function units and sold or used as independent products, they can be stored in a computer-readable storage medium.
  • the technical solution of the present application is essentially or the part that contributes to the prior art or the part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including Several instructions are used to make a computer device (which may be a personal computer, a server, or a network device, etc.) execute all or part of the steps of the methods described in the various embodiments of the present application.
  • the aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (read-only memory, ROM), random access memory (random access memory, RAM), magnetic disk or optical disc and other media that can store program codes. .

Abstract

本申请提供了一种随机接入的方法和通信装置。该方法包括：终端设备确定第一特征对应的随机接入优先级和第二特征对应的第二随机接入优先级，该第一特征和第二特征为终端设备发起的业务对应的特征，终端设备可参考网络设备的指示、终端设备的能力、或终端设备发起的业务的相关信息，从该第一随机接入优先级和第二随机接入优先级中选择进行随机接入使用的随机接入优先级，以期保障通信的正常进行。

Description

随机接入的方法和通信装置
本申请要求于2022年1月7日提交中国国家知识产权局、申请号为202210018184.9、申请名称为“随机接入的方法和通信装置”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及通信领域，并且，更具体地，涉及随机接入的方法和通信装置。
背景技术
随着移动通信技术的发展，终端设备如何进行随机接入，以保障通信的正常进行是值得考虑的问题。
发明内容
本申请提供一种随机接入的方法和装置，以期保障通信的正常进行。
第一方面，提供了一种随机接入的方法。该方法可以由终端设备执行，或者，也可以由配置在终端设备中的部件(如芯片或芯片系统等)执行，本申请对此不作限定。该方法包括：终端设备确定第一特征对应的第一随机接入优先级和第二特征对应的第二随机接入优先级，该第一特征和第二特征为业务对应的特征，终端设备参考该第一随机接入优先级和第二随机接入优先级的排序确定终端设备进行随机接入使用的随机接入优先级。
基于上述方案，在终端设备发起的业务对应至少两个特征，且该至少两个特征对应不同随机接入优先级的情况下，终端设备可以参考不同随机接入优先级的排序选择更合适的随机接入优先级进行随机接入，从而提高终端设备随机接入的成功率，以期保障通信的正常进行。
结合第一方面，在第一方面的某些实现方式中，该第一特征或第二特征包括以下任一项：网络切片、小数据传输、覆盖增强、能力受限、多媒体优先级业务、或关键任务业务。
基于上述方案，当终端设备发起的业务对应网络切片、小数据传输、覆盖增强、能力受限、多媒体优先级业务、或关键任务业务中的至少两个特征，并且终端设备根据该业务对应的特征可以有至少两个随机接入优先级选择时，终端设备可以从该至少两个随机接入优先级中选择更容易随机接入的随机接入优先级，从而提高终端设备随机接入的成功率。
结合第一方面，在第一方面的某些实现方式中，终端设备接收来自网络设备的第一指示信息，该第一指示信息指示该第一随机接入优先级和/或第二随机接入优先级的排序。
基于上述方案，网络设备通过第一指示信息指示不同随机接入优先级之间的排序，从而解决了当终端设备根据发起的业务的特征，确定有两个随机接入优先级可以选择时，如何根据随机接入优先级之间的排序选择更合适的随机接入优先级来进行随机接入的问题。该方案不仅可以实现网络设备对终端设备行为的集中管理，也可减少终端设备实现的复杂 度。
结合第一方面，在第一方面的某些实现方式中，该第一随机接入优先级和/或第二随机接入优先级的排序是基于第一信息确定的，该第一信息包括以下至少一项：业务的时延需求信息，或终端设备的能力信息。
基于上述方案，终端设备可参考第一信息确定随机接入使用的随机接入优先级，再次过程中可以不需要网络设备的指示，相较于终端设备参考第一指示信息确定随机接入使用的随机接入优先级的方案而言，能够节省信令开销，并且在终端设备实现上更具自主性。
结合第一方面，在第一方面的某些实现方式中，终端设备接收来自网络设备的第二指示信息，该第二指示信息指示该终端设备使用该第一特征对应的随机接入优先级，终端设备参考该第二指示信息确定该终端设备进行随机接入使用的随机接入优先级。
基于上述方案，终端设备可参考第二指示信息确定当终端设备发起的业务对应至少两个特征的场景下，选择哪个特征对应的随机接入优先级进行随机接入，该第二指示信息可以不用指示不同随机接入优先级之间的排序，因此该方案相较于网络设备通过第一指示信息指示不同随机接入优先级之间的排序的方案而言，能够节省部分信令开销。
结合第一方面，在第一方面的某些实现方式中，当第二指示信息指示的第一特征不属于终端设备发起的业务对应的特征时，终端设备需要参考第一信息确定进行随机接入使用的随机接入优先级，该第一信息包括以下至少一项：业务的时延需求信息，或终端设备的能力信息。
基于上述方案，如果第二指示信息指示当终端设备发起的业务对应至少两个特征的场景下，让终端设备使用第一特征对应的随机接入优先级进行随机接入，但该第一特征不是终端设备发起的业务对应的特征，此时终端设备可结合第一信息确定更适合进行随机接入的随机接入优先级，该方案相较于网络设备通过第一指示信息指示随机接入优先级的排序的方案而言，能够节省部分信令开销，并且在终端设备实现上更具灵活性。
结合第一方面，在第一方面的某些实现方式中，在终端设备使用随机接入优先级第一次随机接入失败的情况下，终端设备参考第一随机接入优先级和第二随机接入优先级的排序确定第二次随机接入使用的随机接入优先级，终端设备第二次随机接入使用的随机接入优先级可以与第一次随机接入使用的随机接入优先级不同。
基于上述方案，当终端设备使用随机接入优先级第一次随机接入失败时，可以参考上述第一指示信息、第一信息、或第二指示信息，重新选择与第一次随机接入使用的随机接入优先级不同的随机接入优先级，进行随机接入，从而提高终端设备随机接入的成功率。
结合第一方面，在第一方面的某些实现方式中，终端设备接收来自网络设备的第一对应关系和第二对应关系，该第一对应关系包括随机接入信道分区和特征的对应关系，该第二对应关系包括随机接入信道分区和随机接入优先级的对应关系，终端设备参考该第一对应关系，以及第二对应关系确定第一特征对应的第一随机接入优先级和第二特征对应的第二随机接入优先级。
基于上述方案，网络设备以随机接入信道分区为粒度为特征配置随机接入优先级，因此可以使得至少两个特征对应相同的随机接入优先级，相对于以特征为粒度配置随机接入优先级的方案而言，能够节省信令开销。
结合第一方面，在第一方面的某些实现方式中，终端设备接收来自网络设备的标识信 息，该标识信息指示随机接入信道分区对应的随机接入优先级适用的特征，终端设备参考该第一对应关系，该第二对应关系，以及该标识信息确定该第一特征对应的第一随机接入优先级和第二特征对应的第二随机接入优先级。
第二方面，提供了一种随机接入的方法。该方法可以由网络设备执行，或者，也可以由配置在网络设备中的部件(如芯片或芯片系统等)执行，本申请对此不作限定。该方法包括：网络设备向终端设备发送第一对应关系和第二对应关系，该第一对应关系包括该随机接入信道分区和特征的对应关系，该第二对应关系包括随机接入信道分区和随机接入优先级的对应关系，该第一对应关系以及该第二对应关系用于确定第一特征对应的第一随机接入优先级和/或第二特征对应的第二随机接入优先级，该第一特征和第二特征为业务对应的特征，网络设备向终端设备发送第一指示信息，该第一指示信息指示该第一随机接入优先级和/或第二随机接入优先级的排序。
基于上述方案，网络设备通过第一指示信息指示不同随机接入优先级之间的排序，从而解决了当终端设备根据发起的业务的特征，确定有两个随机接入优先级可以选择时，如何根据随机接入优先级之间的排序选择更合适的随机接入优先级来进行随机接入的问题。该方案不仅可以实现网络设备对终端设备行为的集中管理，也可减少终端设备实现的复杂度。
第三方面，提供了一种随机接入的方法。该方法可以由网络设备执行，或者，也可以由配置在网络设备中的部件(如芯片或芯片系统等)执行，本申请对此不作限定。该方法包括：网络设备向终端设备发送第一对应关系和第二对应关系，该第一对应关系包括该随机接入信道分区和特征的对应关系，该第二对应关系包括随机接入信道分区和随机接入优先级的对应关系，该第一对应关系以及该第二对应关系用于确定第一特征对应的第一随机接入优先级和/或第二特征对应的第二随机接入优先级，该第一特征和第二特征为业务对应的特征，网络设备向终端设备发送第二指示信息，该第二指示信息指示终端设备使用第一特征对应的随机接入优先级。
基于上述方案，终端设备可参考第二指示信息确定当终端设备发起的业务对应至少两个特征的场景下，选择哪个特征对应的随机接入优先级进行随机接入，该第二指示信息可以不用指示不同随机接入优先级之间的排序，因此该方案相较于网络设备通过第一指示信息指示不同随机接入优先级之间的排序的方案而言，能够节省部分信令开销。
结合第二方面或第三方面，在第二方面或第三方面的某些实现方式中，该第一特征或第二特征包括以下任一项：网络切片、小数据传输、覆盖增强、能力受限、多媒体优先级业务、或关键任务业务。
基于上述方案，当终端设备发起的业务对应网络切片、小数据传输、覆盖增强、能力受限、多媒体优先级业务、或关键任务业务中的至少两个特征，并且终端设备根据该业务对应的特征可以有至少两个随机接入优先级选择时，终端设备可以从该至少两个随机接入优先级中选择更容易随机接入的随机接入优先级，从而提高终端设备随机接入的成功率。结合第二方面或第三方面，在第二方面或第三方面的某些实现方式中，网络设备向终端设备发送标识信息，该标识信息指示随机接入信道分区对应的随机接入优先级适用的特征，该标识信息用于确定第一特征对应的第一随机接入优先级和/或第二特征对应的第二随机接入优先级。
第四方面，提供了一种通信装置。该装置可以是终端设备，或者，也可以是配置在终端设备中的部件(如芯片或芯片系统等)，本申请对此不作限定。该装置包括处理单元和收发单元：该处理单元用于确定第一特征对应的第一随机接入优先级和第二特征对应的第二随机接入优先级，该第一特征和第二特征为业务对应的特征，并参考该第一随机接入优先级和第二随机接入优先级的排序确定该终端设备进行随机接入使用的随机接入优先级。
结合第四方面，在第四方面的某些实现方式中，该第一特征或第二特征包括以下任一项：网络切片、小数据传输、覆盖增强、能力受限、多媒体优先级业务、或关键任务业务。
结合第四方面，在第四方面的某些实现方式中，该收发单元用于接收来自网络设备的第一指示信息，该第一指示信息指示该第一随机接入优先级和/或第二随机接入优先级的排序。
结合第四方面，在第四方面的某些实现方式中，该第一随机接入优先级和第二随机接入优先级的排序是基于第一信息确定的，该第一信息包括以下至少一项：业务的时延需求信息，或终端设备的能力信息。
结合第四方面，在第四方面的某些实现方式中，该收发单元用于接收来自网络设备的第二指示信息，该第二指示信息指示该终端设备使用第一特征对应的随机接入优先级，该处理单元用于参考该第二指示信息确定终端设备进行随机接入使用的随机接入优先级。
结合第四方面，在第四方面的某些实现方式中，当第二指示信息指示的第一特征不属于终端设备发起的业务对应的特征时，该处理单元还用于参考第一信息确定终端设备进行随机接入使用的随机接入优先级，第一信息包括以下至少一项：业务的时延需求信息，或终端设备的能力信息。
应理解，当该装置为终端设备时，该终端设备的能力信息即为该装置的能力信息，当该装置为芯片或芯片系统时，该终端设备的能力信息即为安装有该芯片或芯片系统的装置的能力信息。
结合第四方面，在第四方面的某些实现方式中，在终端设备使用随机接入优先级第一次随机接入失败的情况下，该处理单元还用于参考第一随机接入优先级和第二随机接入优先级的排序确定第二次随机接入使用的随机接入优先级，该终端设备第二次随机接入使用的随机接入优先级与第一次随机接入使用的随机接入优先级不同。
结合第四方面，在第四方面的某些实现方式中，该收发单元还用于接收来自网络设备的第一对应关系和第二对应关系，该第一对应关系包括随机接入信道分区和特征的对应关系，该第二对应关系包括随机接入信道分区和随机接入优先级的对应关系，该处理单元还用于参考该第一对应关系，以及第二对应关系确定第一特征对应的第一随机接入优先级和第二特征对应的第二随机接入优先级。
结合第四方面，在第四方面的某些实现方式中，该收发单元还用于接收来自网络设备的标识信息，该标识信息指示随机接入信道分区对应的随机接入优先级适用的特征，该处理单元还用于参考该第一对应关系，该第二对应关系，以及该标识信息确定该第一特征对应的第一随机接入优先级和第二特征对应的第二随机接入优先级。
第五方面，提供了一种通信装置。该装置可以是网络设备，或者，也可以是配置在网络设备中的部件(如芯片或芯片系统等)，本申请对此不作限定。该装置包括处理单元和收发单元：该收发单元用于向终端设备发送第一对应关系和第二对应关系，该第一对应关 系包括该随机接入信道分区和特征的对应关系，该第二对应关系包括随机接入信道分区和随机接入优先级的对应关系，该第一对应关系以及该第二对应关系用于确定第一特征对应的第一随机接入优先级和/或第二特征对应的第二随机接入优先级，该第一特征和第二特征为业务对应的特征，该收发单元还用于向终端设备发送第一指示信息，该第一指示信息指示该第一随机接入优先级和/或第二随机接入优先级的排序。
第六方面，提供了一种通信装置。该装置可以是网络设备，或者，也可以是配置在网络设备中的部件(如芯片或芯片系统等)，本申请对此不作限定。该装置包括收发单元：该收发单元用于向终端设备发送第一对应关系和第二对应关系，该第一对应关系包括该随机接入信道分区和特征的对应关系，该第二对应关系包括随机接入信道分区和随机接入优先级的对应关系，该第一对应关系以及该第二对应关系用于确定第一特征对应的第一随机接入优先级和/或第二特征对应的第二随机接入优先级，该第一特征和第二特征为业务对应的特征，该收发单元还用于向终端设备发送第二指示信息，该第二指示信息指示终端设备使用该第一特征对应的随机接入优先级。
结合第五方面或第六方面，在第五方面或第六方面的某些实现方式中，该第一特征或第二特征包括以下任一项：网络切片、小数据传输、覆盖增强、能力受限、多媒体优先级业务、或关键任务业务。
结合第五方面或第六方面，在第五方面或第六方面的某些实现方式中，该收发单元还用于向终端设备发送标识信息，该标识信息指示随机接入信道分区对应的随机接入优先级适用的特征，该标识信息用于确定第一特征对应的第一随机接入优先级和/或第二特征对应的第二随机接入优先级。
第七方面，提供一种通信装置，该装置包括处理器，该处理器与存储器耦合，可用于执行存储器中的指令，以实现上述第一方面，或第一方面中任一种可能实现方式中的方法。可选地，该装置还包括存储器，该存储器与处理器可能是分离部署的，也可能是集中部署的。可选地，该装置还包括通信接口，处理器与通信接口耦合。
在一种实现方式中，该通信接口可以是收发器，或，输入/输出接口。
在另一种实现方式中，该装置为配置于终端设备中的芯片。当该装置为配置于终端设备中的芯片时，该通信接口可以是该芯片或芯片系统上的输入/输出接口、接口电路、输出电路、输入电路、管脚或相关电路等。该处理器也可以体现为处理电路或逻辑电路。
可选地，该收发器可以为收发电路。可选地，所述输入/输出接口可以为输入/输出电路。
在具体实现过程中，上述处理器可以为一个或多个芯片，输入电路可以为输入管脚，输出电路可以为输出管脚，处理电路可以为晶体管、门电路、触发器和各种逻辑电路等。输入电路所接收的输入的信号可以是但不限于接收器接收并输入的，输出电路所输出的信号可以是但不限于输出给发射器并由发射器发射的，且输入电路和输出电路可以是同一电路，该电路在不同的时刻分别用作输入电路和输出电路。本申请实施例对处理器及各种电路的具体实现方式不做限定。
第八方面，提供一种通信装置，该装置包括处理器，该处理器与存储器耦合，可用于执行存储器中的指令，以实现上述第二方面或第三方面，或第二方面或第三方面中任一种可能实现方式中的方法。可选地，该装置还包括存储器，该存储器与处理器可能是分离部 署的，也可能是集中部署的。可选地，该装置还包括通信接口，处理器与通信接口耦合。
在一种实现方式中，该通信接口可以是收发器，或，输入/输出接口。
在另一种实现方式中，该装置为配置于网络设备中的芯片。当该装置为配置于网络设备中的芯片时，该通信接口可以是该芯片或芯片系统上的输入/输出接口、接口电路、输出电路、输入电路、管脚或相关电路等。该处理器也可以体现为处理电路或逻辑电路。
可选地，该收发器可以为收发电路。可选地，所述输入/输出接口可以为输入/输出电路。
在具体实现过程中，上述处理器可以为一个或多个芯片，输入电路可以为输入管脚，输出电路可以为输出管脚，处理电路可以为晶体管、门电路、触发器和各种逻辑电路等。输入电路所接收的输入的信号可以是但不限于接收器接收并输入的，输出电路所输出的信号可以是但不限于输出给发射器并由发射器发射的，且输入电路和输出电路可以是同一电路，该电路在不同的时刻分别用作输入电路和输出电路。本申请实施例对处理器及各种电路的具体实现方式不做限定。
第九方面，提供一种通信装置，该装置包括逻辑电路，该逻辑电路用于与输入/输出接口耦合，通过该输入/输出接口传输数据，以执行上述第一方面至第三方面中的任一方面，以及第一方面至第三方面中任一种可能实现方式中的方法。
第十方面，提供了一种计算机可读存储介质，该计算机可读存储介质存储有计算机程序(也可以称为代码，或指令)当其在计算机上运行时，使得计算机执行上述第一方面至第三方面中的任一方面，以及第一方面至第三方面中任一种可能实现方式中的方法。
第十一方面，提供了一种计算机程序产品，该计算机程序产品包括：计算机程序(也可以称为代码，或指令)，当该计算机程序被运行时，使得计算机执行上述第一方面至第三方面中的任一方面，以及第一方面至第三方面中任一种可能实现方式中的方法。
上述第四方面至第十一方面带来的有益效果具体可以参考第一方面至第三方面中有益效果的描述，此处不再赘述。
附图说明
图1是本申请实施例提供的一种网络架构的示意图。
图2是本申请实施例提供的一种用于随机接入的流程示意图。
图3是本申请实施例提供的一种确定随机接入优先级的方法流程交互图。
图4是本申请实施例提供的一种划分随机接入资源的示意图。
图5是本申请实施例提供的另一种确定随机接入优先级的方法流程交互图。
图6是本申请实施例提供的又一种确定随机接入优先级的方法流程交互图。
图7是本申请实施例提供的一种通信装置的示意性框图。
图8是本申请实施例提供的一种通信装置的结构示意图。
图9是本申请实施例提供的一种终端设备的结构示意图。
图10是本申请实施例提供的一种网络设备的结构示意图。
图11是本申请实施例提供的另一种通信装置的结构示意图。
具体实施方式
下面将结合附图，对本申请中的技术方案进行描述。
图1本申请实施例提供的一种网络架构100的示意图。
图1示出了5G系统中的终端设备101，网络设备102，以及核心网设备103。为了更好地满足不同的业务需求，网络设备102与核心网设备103端虚拟出多个(图1只示例了两个)相互隔离的逻辑子网，来针对性地为用户提供服务。例如，图1示出对应网络切片#1的逻辑子网，和对应网络切片#2的逻辑子网。不同网络切片为终端设备提供不同的服务，例如终端设备101接入网络设备102，网络设备102和核心网设备103通过网络切片#1为终端设备101提供增强移动宽带(enhanced Mobile Broadband，eMBB)服务，网络设备102和核心网设备103通过网络切片#2为终端设备101提供超高可靠性超低时延通信(ultra-reliable low-latency communication，URLLC)服务。网络切片#1可称为eMBB切片，网络切片#2可称为URLLC切片。
针对网络切片的随机接入，网络设备会在广播消息中携带网络切片随机接入配置信息，当终端设备发起的网络切片业务属于网络切片#1对应的业务时，网络侧通过网络切片#1为终端设备服务。
示例地，终端设备101如果要发起eMBB业务，可在注册请求中携带对应的单网络切片选择辅助信息，网络设备102通过该单网络切片选择辅助信息选择能为终端设备101提供eMBB服务的接入和移动性管理功能(access and mobility management function，AMF)，选择AMF后，通过AMF，网络设备和终端设备之间的信令交互建立协议数据单元(protocol data unit，PDU)会话，后续通过PDU会话进行数据传输。
可以理解，图1只是一种示例，对本申请的保护范围不构成任何限定。本申请实施例提供的实施例还可以涉及图1中未示出的网络节点(设备)，当然本申请实施例提供的实施例也可以只包括图1示出的网络节点(设备)。
本申请实施例中的终端设备：也可以称为终端、接入终端、用户单元、用户站、移动站、移动台、远方站、远程终端、移动设备、用户终端、无线通信设备、用户代理或用户装置。本申请的实施例中的终端可以是手机(mobile phone)、平板电脑(pad)、带无线收发功能的电脑、虚拟现实(virtual reality，VR)终端、增强现实(augmented reality，AR)终端、工业控制(industrial control)中的无线终端、无人驾驶(self driving)中的无线终端、远程医疗(remote medical)中的无线终端、智能电网(smart grid)中的无线终端、运输安全(transportation safety)中的无线终端、智慧城市(smart city)中的无线终端、智慧家庭(smart home)中的无线终端、蜂窝电话、无绳电话、会话启动协议(session initiation protocol，SIP)电话、无线本地环路(wireless local loop，WLL)站、个人数字助理(personal digital assistant，PDA)、具有无线通信功能的手持设备、计算设备或连接到无线调制解调器的其它处理设备、车载设备、可穿戴设备，5G网络中的终端或者未来演进网络中的终端等。
其中，可穿戴设备也可以称为穿戴式智能设备，是应用穿戴式技术对日常穿戴进行智能化设计、开发出可以穿戴的设备的总称，如眼镜、手套、手表、服饰及鞋等。可穿戴设备即直接穿在身上，或是整合到用户的衣服或配件的一种便携式设备。可穿戴设备不仅仅是一种硬件设备，更是通过软件支持以及数据交互、云端交互来实现强大的功能。广义穿戴式智能设备包括功能全、尺寸大、可不依赖智能手机实现完整或者部分的功能，例如：智能手表或智能眼镜等，以及只专注于某一类应用功能，需要和其它设备如智能手机配合 使用，如各类进行体征监测的智能手环、智能首饰等。
本申请实施例中的网络设备可以是用于与终端设备通信的任意一种具有无线收发功能的通信设备。该网络设备包括但不限于：演进型节点B(evolved Node B，eNB)、无线网络控制器(radio network controller，RNC)、节点B(Node B，NB)、基站控制器(base station controller，BSC)、基站收发台(base transceiver station，BTS)、家庭基站(home evolved NodeB，HeNB，或home Node B，HNB)、基带单元(baseBand unit，BBU)，无线保真(wireless fidelity，WIFI)系统中的接入点(access point，AP)、无线中继节点、无线回传节点、传输点(transmission point，TP)或者发送接收点(transmission and reception point，TRP)等，还可以为5G，如NR系统中的gNB，或传输点(TRP或TP)，5G系统中的基站的一个或一组(包括多个天线面板)天线面板，或者，还可以为构成gNB或传输点的网络节点，如基带单元(BBU)，或分布式单元(distributed unit，DU)等。
在一些部署中，gNB可以包括集中式单元(centralized unit，CU)和DU。gNB还可以包括有源天线单元(active antenna unit，AAU)。CU实现gNB的部分功能，DU实现gNB的部分功能。比如，CU负责处理非实时协议和服务，实现无线资源控制(radio resource control，RRC)，分组数据汇聚层协议(packet data convergence protocol，PDCP)层的功能。DU负责处理物理层协议和实时服务，实现无线链路控制(radio link control，RLC)层、媒体接入控制(media access control，MAC)层和物理(physical，PHY)层的功能。AAU实现部分物理层处理功能、射频处理及有源天线的相关功能。RRC层的信息由CU生成，最终会经过DU的PHY层封装变成PHY层信息，或者，由PHY层的信息转变而来。因而，在这种架构下，高层信令如RRC层信令，也可以认为是由DU发送的，或者，由DU+AAU发送的。可以理解的是，网络设备可以为包括CU节点、DU节点、AAU节点中一项或多项的设备。
本申请实施例的核心网设备的功能是提供用户连接、对用户的管理以及对业务完成承载，作为承载网络提供到外部网络的接口。示例地，在5G系统中，核心网设备可以包括，接入和移动性管理功能(access and mobility management function，AMF)，网络切片选择功能(network slice selection function，NSSF)。AMF主要进行移动性管理、接入鉴权/授权等功能，此外，还负责在终端与策略控制功能(policy control function，PCF)间传递用户策略。NSSF负责根据入网终端设备提供的网络切片选择辅助信息或单网络切片选择辅助信息判断应该为终端设备提供哪个网络切片的服务，进而决定由哪个AMF为该终端设备提供接入服务。
应理解，在未来的通信系统，例如6G通信系统中，上述网元或设备仍可以使用其在5G通信系统中的名称，或者也可以有其它名称，本申请实施例对此不作限定。上述网元或设备的功能可以由一个独立网元完成，也可以由若干个网元共同完成。在实际部署中，核心网中的网元可以部署在相同或者不同的物理设备上。例如作为一种可能的部署，可以将AMF和SMF部署在同一个物理设备上。又例如，5G核心网的网元可以和4G核心网的网元部署在同一物理设备上。上述核心网设备包括的网元的列举仅为一种示例，对本申请的保护范围不构成任何限定。核心网设备中还可包括上述未列举出的网元，当然本申请核心网设备中也可以只包括上述列举出的部分网元，本申请实施例对此不作限定。
本申请实施例的技术方案可以应用于各种通信系统，例如：全球移动通信(global  system formobile communications，GSM)系统、码分多址(code division multiple access，CDMA)系统、宽带码分多址(wideband code division multiple access，WCDMA)系统、通用分组无线业务(general packet radio service，GPRS)、LTE系统、高级的长期演进(LTE advanced，LTE-A)系统，LTE频分双工(frequency division duplex，FDD)系统、LTE时分双工(time division duplex，TDD)、通用移动通信系统(universal mobile telecommunication system，UMTS)、全球互联微波接入(worldwide interoperability for microwave access，WiMAX)通信系统、5G系统或未来演进的通信系统，车到其它设备(vehicle-to-X V2X)，其中V2X可以包括车到互联网(vehicle to network，V2N)、车到车(vehicle to vehicle，V2V)、车到基础设施(vehicle to infrastructure，V2I)、车到行人(vehicle to pedestrian，V2P)等、车间通信长期演进技术(long term evolution-vehicle，LTE-V)、车联网、机器类通信(machine type communication，MTC)、物联网(Internet of things，IoT)、机器间通信长期演进技术(long term evolution-machine，LTE-M)，机器到机器(machine to machine，M2M)等。
网络设备在随机接入参数的初始化过程中，针对不同的随机接入类型配置不同的随机接入优先级(random access，RA-Prioritization)。随机接入优先级用于在特定小区(special cell)的任何上行部分带宽(bandwidth part，BWP)上申请特定接入标识的随机接入过程，此处特定小区在双连接模式下是指主小区组中的主小区或者辅小区组的主辅小区，在其他通信模式中指的是主小区。
随机接入优先级：包括高优先级功率抬升步长(powerRampingStepHighPriority)和避让指标(backoff indicator，BI)缩放因子(scalingFactor)这两个参数，后文中避让指标缩放因子以缩放因子BI简称。其中高优先级功率抬升步长用于指示终端设备在优先随机接入过程中发射功率的抬升步长(即终端设备随机接入过程失败时还没有达到最大尝试次数preambleTransMax，此时终端设备可以在上次发射功率的基础上，将功率提升上述高优先级功率抬升步长之后再次发送随机接入请求，以提高接入成功率)，缩放因子BI用于控制终端设备在两次随机接入信息时机(random access channel occasion，RO)请求中间相隔的避让时间。
网络设备针对不同网络切片，或者不同网络切片组配置不同的随机接入资源配置，随机接入资源配置包括但不限于：随机接入优先级，随机接入前导序列的指示信息，随机接入前导序列占用的时频资源的指示信息，竞争解决定时器的计时时间长度，随机接入最大次数，调度消息尺寸门限。网络设备配置的依据可以是S-NSSAI、RSA ID等切片相关信息，从而实现对不同网络切片业务的区别对待，实现不同网络切片的资源隔离，例如，当一个网络切片组配置一个随机接入资源配置时，该随机接入资源配置适用于该网络切片组中的所有网络切片。
网络切片可简称为切片，本申请中出现的切片应理解为网络切片。
基于不同的随机接入资源，网络设备可以识别出终端设备当前请求的网络切片，更早地判断是否可以接受该网络切片业务请求，以避免网络设备和核心网之间不必要的信令交互。
如果网络设备同时配置了网络切片业务对应的随机接入优先级#1，以及MPS/MCS对应的随机接入优先级#2，终端设备发起了业务#1，该业务#1为网络切片业务，同时该业务 #1还包括MPS/MCS的特征，此时有两个随机接入优先级可以供终端设备使用，终端设备需要根据网络设备的指示确定使用随机接入优先级#1，还是使用随机接入优先级#2进行随机接入。一种实施方式，网络设备向终端设备发送覆盖指示，若该覆盖指示指示切片业务的随机接入优先级覆盖MPS/MCS的随机接入优先级，即为指示终端设备选择切片业务对应的随机接入优先级#1进行随机接入，若该覆盖指示指示MPS/MCS的随机接入优先级覆盖切片业务的随机接入优先级，即为指示终端设备选择MPS/MCS对应的随机接入优先级#2进行随机接入。
上述介绍了网络设备为符合网络切片和MPS/MCS特征的业务分别配置了随机接入优先级时，终端设备如何选择随机接入优先级进行随机接入的过程。
但是除了网络切片，和MPS/MCS等特征之外，未来可能会针对终端设备发起的业务提出更多的特征，例如小数据传输，覆盖增强，能力受限等特征。当终端设备发起的业务#1对应的特征包括除网络切片和MPS/MCS之外的特征时，例如业务#1对应的特征为小数据传输和网络切片时，终端设备无法通过上述实施方式选择随机接入优先级进行随机接入。
为方便理解本申请实施例，对以下业务的特征进行解释：
1、小数据传输(small data transmission，SDT)，当某一终端设备产生的数据包的数量小于某个特定阈值，和/或当该终端设备测量到下行参考信号的信号质量高于某个特定阈值时(例如该终端设备测量到下行参考信号的接收功率高于某个特定阈值时)，该终端设备发起的业务对应的特征可以包括SDT。也就是说当终端设备发起的业务对应的特征包括SDT时，说明该业务产生的数据包的数量小于某个特定阈值，和/或发起该业务的终端设备对应的下行参考信号的接收功率高于某个特定阈值。例如海量物联网通信(massive machine-type communications，mMTC)类型的终端设备发起的业务对应的特征包括SDT。
2、覆盖增强(coverage enhancement，CE)，当某一终端设备测量到下行参考信号的信号质量小于某个特定阈值时，例如某一终端设备测量到下行参考信号的接收功率小于某个特定阈值时，该终端设备可以判定为远距离终端设备，此时该终端设备发起的业务对应的特征包括覆盖增强，通常情况下与网络设备的距离小于一定阈值的终端设备被称为远距离终端设备。
3、能力受限(reduced capability，RedCap)，可穿戴设备、视频监控、工业无线传感器等终端设备可称为能力受限的终端设备，能力受限的终端设备支持的最大带宽比普通终端设备支持的最大带宽小，能力受限的终端设备的收发天线的数量比普通终端设备的收发天线的数量少。能力受限的终端设备发起的业务对应的特征包括能力受限。能力受限的终端设备也被称为低能力终端设备。
4、MPS，网络设备为包括MPS特征的业务提供优先级处理，以增加授权服务用户的语音、视频和数据通信会话成功的可能性。即签约了MPS业务的终端设备，或者说有MPS授权的终端设备可以在公共陆地移动网络(public land mobile network，PLMN)拥塞的情况下，相较于其他PLMN用户(未签约MPS业务的用户，或者没有授权MPS的用户)可以优先获得下一个可用无线信道进行接入，并建立会话。MPS终端设备(该终端设备有MPS授权)发起的业务对应的特征包括MPS。
5、MCS，关键任务型的要求包括较低的设置和传输延迟、高可用性和可靠性、处理 大量用户和设备的能力、强安全性和优先级、以及抢占处理。该特征主要为关键任务型的组织或其他业务和组织(例如公用事业、铁路)的终端用户提供通信服务。例如，公用事业或铁路系统中的终端设备发起的业务对应的特征包括MCS。
以上业务的特征仅为举例，本申请实施例中涉及的业务的特征不限于此，还可包括其他的根据业务类型，业务等级(业务类型，或业务等级可以是依据终端设备的类型或功能类型划分的)等划分的其他特征。
应理解，上述特征也可以理解特性，属性。网络设备在配置随机接入优先级时，可能会按照特性(功能特性)配置，特性(功能特性)可以理解为终端设备的特性(功能特性)，当具有特定特性(功能特性)的终端设备发起业务时，该业务具备该特定特性(功能特性)对应的属性，该属性也可理解为特征。例如网络设备根据能力受限这一特性配置了随机接入优先级#1，则有能力受限这一特性的终端设备发起的业务对应的特征为能力受限，也可以说有能力受限这一特性的终端设备发起的业务的属性为能力受限。因此业务的特征(或业务的属性)是与特性(或功能特性)相对应的，在终端设备角度，和网络设备角度的描述会有所不同。为了更好的理解本申请，本申请将业务的特征，特性，属性统一描述为业务的特征，在网络设备和终端设备理解上的区别可参考上述描述。
图2是本申请实施例提供的一种用于随机接入的流程示意图。图2所示的方法200包括：
步骤S210，终端设备确定第一特征对应的第一随机接入优先级和第二特征对应的第二随机接入优先级，该第一特征和第二特征为业务对应的特征。
可选地，第一特征或第二特征包括以下任一项：网络切片、小数据传输、覆盖增强、能力受限、MPS、或MCS。
应理解，该业务(service)可以是终端设备发起的业务、或终端设备请求的业务，例如网络切片业务、MPS业务(签约MPS的终端设备发起的业务)、MCS业务(签约MCS的终端设备发起的业务)、语音业务、或视频业务等，本申请对此不做限制。
示例地，终端设备发起的业务#1对应的第一特征为网络切片，第二特征为小数据传输，网络设备为网络切片业务配置的随机接入优先级为随机接入优先级#1(第一随机接入优先级)，网络设备为小数据传输业务配置的随机接入优先级为随机接入优先级#2(第二随机接入优先级)。此时，业务#1对应的随机接入优先级包括随机接入优先级#1和随机接入优先级#2。
网络设备为不同特征配置随机接入优先级可以有以下两种方式：
方式1：
网络设备为不同特征分别配置随机接入优先级，例如网络设备为网络切片配置随机接入优先级#1，为小数据传输配置随机接入优先级#2，为覆盖增强配置随机接入优先级#3，为能力受限配置随机接入优先级#4，为MPS/MCS配置随机接入优先级#5，其中，每个随机接入优先级可以不同，或者部分随机接入优先级可以相同，例如随机接入优先级#2和随机接入优先级#4可以相同，本申请对不同特征的随机接入优先级是否相同，以及每个随机接入优先级适用的特征的数量不做限定。
应理解，如果随机接入优先级#1和随机接入优先级#2不同，则随机接入优先级#1的参数高优先级功率抬升步长和缩放因子BI中至少有一项不同于随机接入优先级#2的参数， 例如，随机接入优先级#1的高优先级功率抬升步长和随机接入优先级#2不同，或随机接入优先级#1的缩放因子BI和随机接入优先级#2不同，或随机接入优先级#1的高优先级功率抬升步长和缩放因子BI都与随机接入优先级#2不同。如果随机接入优先级#2和随机接入优先级#4相同，则随机接入优先级#2的高优先级功率抬升步长和缩放因子BI与随机接入优先级#4相同。
在该方式1中，终端设备可根据发起的业务的特征，以及网络设备配置的不同特征对应的随机接入优先级，确定业务对应的随机接入优先级。
方式2：
将空口的随机接入资源划分为至少两个随机接入资源部分，每个随机接入资源部分可称之为随机接入信道分区(还可称之为随机接入信道部分，随机接入信道区域，随机接入信道分部，随机接入资源分区，随机接入资源部分，随机接入资源区域，随机接入资源分部，本申请对此不做限制)，不同随机接入信道分区对应不同的特征。
不同的随机接入信道分区可以理解为是将随机接入信道上的硬件和/或软件资源按照一定的策略划分成的不同逻辑分区，使用某随机接入信道分区进行随机接入的终端设备只能使用该随机接入信道分区被分配的资源范围内的硬/软件资源去发起随机接入。
例如，将随机接入资源划分为4个随机接入信道分区，包括随机接入信道分区#1，随机接入信道分区#2，随机接入信道分区#3，随机接入信道分区#4。其中随机接入信道分区#1对应的特征包括网络切片组#1，小数据传输#1，以及MPS#1。随机接入信道分区#2对应的特征包括网络切片组#2，小数据传输#2，以及MPS#2。随机接入信道分区#3对应的特征包括网络切片组#3和能力受限#3。随机接入信道分区#4对应的特征包括网络切片组#4，小数据传输#4，MPS#4，MCS#4，以及能力受限#4。
应理解，随机接入信道分区#1，随机接入信道分区#2，随机接入信道分区#3，随机接入信道分区#4对应的随机接入资源(包括硬/软件资源)是不同的。网络切片组中包括至少一个网络切片，且同一网络设备上部署的不同网络切片组中的网络切片不同。
可以按照业务产生的数据包的数量将小数据传输业务划分不同等级，例如，将小数据传输业务划分为小数据传输#1业务和小数据传输#2业务，其中小数据传输#1业务产生的数据包的数量小于第一阈值，小数据传输#2业务产生的数据包的数量小于第二阈值，第一阈值和第二阈值不同。
可以参考优先等级、传输延迟、可用性和可靠性、处理大量用户和设备的能力、或强安全性中的至少一项，将MPS业务划分不同MPS特征，例如，参考优先等级将MPS业务划分为MPS#1，MPS#2，MPS#3，MPS#4，则MPS#1，MPS#2，MPS#3，MPS#4在优先等级方面不同。再例如，参考传输延迟将MPS业务划分为MPS#1，MPS#2，MPS#3，MPS#4，则MPS#1，MPS#2，MPS#3，MPS#4在传输延迟方面不同。
可以参考能力受限的等级、收发天线的数量、或终端设备支持的最大带宽中的至少一项，将能力受限分为能力受限#1，能力受限#2，能力受限#3，能力受限#4。例如，参考收发天线的数量将能力受限分为能力受限#1，能力受限#2，能力受限#3，能力受限#4，则能力受限#1，能力受限#2，能力受限#3，能力受限#4对应的收发天线的数量不同。
后文出现的覆盖增强#1，覆盖增强#2，覆盖增强#3可以理解为，根据终端设备与网络设备的距离划分的不同覆盖增强特征，例如，覆盖增强#1，覆盖增强#2，覆盖增强#3对应 的终端设备与网络设备的距离不同。
还应理解，在划分特征时，也可以不将小数据传输，覆盖增强，能力受限，MPS或MCS等特征细分，或者只将其中的部分特征细分，无论是哪种划分方式，不同随机接入信道分区对应的特征是不同的。例如如果对小数据传输不做特征细分，则随机接入信道分区#1对应的特征包括小数据传输时，随机接入信道分区#2对应的特征不会包括小数据传输。再例如如果对小数据传输做特征细分，则随机接入信道分区#1对应的特征包括小数据传输#1时，随机接入信道分区#2对应的特征可以包括小数据传输#2。覆盖增强，能力受限，MPS或MCS等特征可以此类推。
网络设备为随机接入信道分区#1配置了随机接入优先级#1，为随机接入信道分区#2配置了随机接入优先级#2，为随机接入信道分区#3配置了随机接入优先级#3，为随机接入信道分区#4配置了随机接入优先级#4。
示例地，在该方式2中，如果终端设备发起的业务对应的第一特征为网络切片组#2，第二特征为能力受限#3，则可确定该业务对应的随机接入优先级包括随机接入优先级#2和随机接入优先级#3。
应理解，本申请实施例对随机接入资源划分的数量，以及划分后的每一个随机接入资源部分的名称，每一个随机接入资源部分对应的特征及特征数量不做限定。
步骤S220，所述终端设备参考该第一随机接入优先级和第二随机接入优先级的排序确定终端设备进行随机接入使用的随机接入优先级。
排序可以理解为顺序，次序等，优先级也可以作为排序的一种体现形式，假设业务对应的随机接入优先级包括随机接入优先级#1和随机接入优先级#2，则终端设备选择随机接入优先级时，是选择随机接入优先级#1进行随机接入，还是选择随机接入优先级#2进行随机接入是由随机接入优先级#1和随机接入优先级#2的排序决定的。
示例地，若随机接入优先级#1的排序优先于随机接入优先级#2的排序，则终端设备将随机接入优先级#1确定为终端设备进行随机接入使用的随机接入优先级，后续终端设备使用随机接入优先级#1进行随机接入。若随机接入优先级#2的排序优先于随机接入优先级#1的排序，则终端设备将随机接入优先级#2确定为终端设备进行随机接入使用的随机接入优先级，后续终端设备使用随机接入优先级#2进行随机接入。
示例地，终端设备发起的业务对应3个特征，该3个特征包括网络切片、小数据传输和覆盖增强。其中网络切片对应的随机接入优先级#1，小数据传输对应的随机接入优先级#2，覆盖增强对应的随机接入优先级#3，且随机接入优先级#2的排序＞随机接入优先级#3的排序＞随机接入优先级#1的排序，“＞”表示排序靠前(排序靠前，则终端设备优先选择)，则终端设备将随机接入优先级#2确定为进行随机接入使用的随机接入优先级。
下面介绍当网络设备配置至少两个特征的随机接入优先级的情况下，终端设备确定随机接入使用的随机接入优先级的不同方式。
图3是本申请实施例提供的一种确定随机接入优先级的方法流程图。图3所示的方法300为网络设备向终端设备指示至少两个随机接入优先级的排序的方案，包括：
步骤S310，网络设备向终端设备发送至少两个特征对应的随机接入优先级，对应的，终端设备接收该至少两个特征对应的随机接入优先级。
可选地，至少两个特征对应的随机接入优先级承载于广播消息中，例如系统消息块1 (session information block，SIB)消息。或者，该至少两个特征对应的随机接入优先级可承载于其他的网络设备向终端设备发送消息中，本申请对此不做限制。
可选地，该至少两个特征对应的随机接入优先级包括以下至少两项：
网络切片对应的随机接入优先级#1，小数据传输对应的随机接入优先级#2，覆盖增强对应的随机接入优先级#3，能力受限对应的随机接入优先级#4，MPS或MCS对应的随机接入优先级#5。
以网络切片特征举例，核心网网元向终端设备发送切片和切片组的对应关系(例如切片标识和切片组标识的对应关系)，网络设备向终端设备广播切片组对应的随机接入优先级(例如切片组标识对应的随机接入优先级)，从而终端设备可根据切片和切片组的对应关系，以及切片组对应的随机接入优先级确定特定切片的随机接入优先级。
示例地，核心网网元(例如AMF)通过NAS消息向终端设备发送切片和切片组标识之间的对应关系:
切片组#1＝{切片1，切片2}；
切片组#2＝{切片4}；
切片组#3＝{切片3，切片5}。
网络设备以切片组(可以是根据切片的种类将切片分成了切片组)为粒度广播随机接入优先级，即随机接入优先级与切片组的标识关联。
其他特征，例如，小数据传输，覆盖增强，能力受限，MPS或MCS对应的随机接入优先级网络设备也可通过以上类似方式广播。
可选地，网络设备以特征为粒度广播，广播消息中包括小数据传输的标识以及对应的随机接入优先级，覆盖增强的标识以及对应的随机接入优先级，能力受限的标识以及对应的随机接入优先级，MPS的标识以及对应的随机接入优先级，MCS的标识以及对应的随机接入优先级。
或者网络设备以更小的特征为粒度广播，对于小数据传输特征而言，如果小数据传输特征分为3个，小数据传输#1，小数据传输#2，以及小数据传输#3，则广播消息中包括小数据传输#1的标识以及对应的随机接入优先级，小数据传输#2的标识以及对应的随机接入优先级，小数据传输#3的标识以及对应的随机接入优先级。
对于覆盖增强特征而言，如果覆盖增强特征分为3个，覆盖增强#1，覆盖增强#2，以及覆盖增强#3，则广播消息中包括覆盖增强#1的标识以及对应的随机接入优先级，覆盖增强#2的标识以及对应的随机接入优先级，覆盖增强#3的标识以及对应的随机接入优先级。
对于能力受限特征而言，如果能力受限特征分为3个，能力受限#1，能力受限#2，以及能力受限#3，则广播消息中包括能力受限#1的标识以及对应的随机接入优先级，能力受限#2的标识以及对应的随机接入优先级，能力受限#3的标识以及对应的随机接入优先级。
对于MPS(MCS)特征而言，如果MPS(MCS)特征分为3个，MPS(MCS)#1，MPS(MCS)#2，以及MPS(MCS)#3，则广播消息中包括MPS(MCS)#1的标识以及对应的随机接入优先级，MPS(MCS)#2的标识以及对应的随机接入优先级，MPS(MCS)#3的标识以及对应的随机接入优先级。
应理解，除了上述广播方式，网络设备还可通过其他方式广播不同特征对应的随机接入优先级，本申请对此不做限制。上述步骤S310是一种网络设备为不同特征配置随机接 入优先级的方法(以特征为粒度配置)。这可对应于上述步骤S210中的方式1。除此之外，还有另一种配置方式。这可对应于步骤S210中的方式2(以随机接入信道分区为粒度)，具体如步骤S310’：
步骤S310’，网络设备向终端设备发送第一对应关系和第二对应关系，第一对应关系包括随机接入信道分区和特征的对应关系，第二对应关系包括随机接入信道分区和随机接入优先级的对应关系。对应的，终端设备接收该第一对应关系和第二对应关系。
对应于步骤S210中的方式2，空口的随机接入资源被划分为至少两个随机接入信道分区，不同随机接入信道分区对应不同的特征。如图4所示，随机接入资源被划分为3个随机接入信道分区，包括随机接入信道分区#1，随机接入信道分区#2，随机接入信道分区#3。其中随机接入信道分区#1对应的特征包括网络切片组#1，小数据传输#1，以及MPS#1。随机接入信道分区#2对应的特征包括网络切片组#2，小数据传输#2，以及MPS#2。随机接入信道分区#3对应的特征包括网络切片组#3和能力受限#3。
应理解，图4在划分随机接入信道分区时，将MPS划分到随机接入信道分区#1和#2对应的特征里。按照现有的信元设计，基于网络切片的随机接入优先级和基于MPS/MCS的随机接入优先级被配置于不同版本的信元中(例如MPS/MCS的随机接入优先级在第三代合作伙伴计划(3rd generation partnership project，3GPP)R16版本的信元中配置，网络切片的随机接入优先级在3GPP R17版本的信元中配置)，因此网络设备配置随机接入优先级时，对于网络切片和MPS/MCS的随机接入优先级无法在同一个版本信元里进行配置。也就是说，终端设备发起的包括MPS/MCS特征的业务可以从随机接入信道分区#1，随机接入信道分区#2，随机接入信道分区#3中的任意一个随机接入信道分区对应的随机接入资源进行随机接入。在此情况下，MPS/MCS特征可看作与随机接入信道分区同级别的特征，网络设备以随机接入信道分区为粒度配置随机接入优先级时，会单独为MPS/MCS特征配置随机接入优先级，具体可参见表7，表13和表15的示例。
本申请实施例还提供一种可能的实施方式，即如图4所示，在网络设备以随机接入信道分区为粒度配置随机接入优先级时，可以将网络切片、小数据传输、覆盖增强、能力受限、以及MPS/MCS等特征进行分组，分组后形成特征集合，每一个特征集合对应一个随机接入信道分区。或者也可以不对特征进行分组，即一个或多个特征对应一个随机接入信道分区，也就是说，一个随机接入信道分区也可以只对应一个特征，后文的部分表格示例中包括特征集合，在不对特征进行分组，即一个或多个特征直接对应一个随机接入信道分区时，后文的部分表格示例中可不包括特征集合，本申请对此不做限制。应理解，本申请中的特征集合也可称为特征组合，特征集合中可包括0，1，或者多个特征，本申请对此不做限制。当特征集合包括0个特征时，表示该特征集合对应的随机接入信道分区的随机接入资源可以是公共的随机接入资源，该随机接入资源可供任意业务随机接入。
示例地，第一对应关系中的特征以网络切片组为例，第一对应关系可如表1所示：
表1
信元
切片对应的随机接入分区
>切片组标识
>随机接入信道分区标识
表1中包括随机接入信道分区标识和网络切片组标识的对应关系，终端设备可根据网络切片组的标识确定特定网络切片对应的随机接入信道分区。
网络设备向终端设备发送的第二对应关系有以下两种可能的信元设置形式：
第一种信元结构：
示例地，包括第二对应关系的信元结构的第一层为特征，第二层为随机接入信道分区标识。该信元的通用定义可以如表2所示：
表2
信元
特定特征随机接入优先级
>随机接入信道分区标识
>随机接入优先级
>>高优先级功率抬升步长
>>缩放因子BI
在表2中，特定特征的随机接入优先级与随机接入信道分区标识关联，终端设备可根据第一对应关系确定特定特征对应的随机接入信道分区标识，结合表2中的随机接入信道分区标识与随机接入优先级的对应关系确定特定特征对应的随机接入优先级。
第二种信元结构：
示例地，包括第二对应关系的信元结构的第一层为随机接入信道分区标识，第二层为特征集合。
对应于第二种信元结构，可选地，方法300还包括：
步骤S311，网络设备向终端设备发送标识信息，该标识信息指示随机接入信道分区对应的随机接入优先级适用的特征，对应的，终端设备接收该标识信息。
可选地，在特征名称的同一层或下一层信元中新增标识信息，用于指示当前随机接入信道分区标识中的随机接入优先级适用于该特征集合中的哪些特征。
示例地，该标识信息可以是在特征名称的同一层或下一层信元中新增的1比特信息，例如标志位(flag)，或指示(indicator)，该1比特信息表示为1时，表明当前随机接入信道分区标识中的随机接入优先级适用于该特征名称对应的特征，或者该标识信息还可通过其他方式指示，本申请对此不做限制。
例如，随机接入信道分区#1对应的随机接入优先级为随机接入优先级#1，随机接入信道分区#1对应的特征集合包括网络切片组#1，小数据传输#1。其中与网络切片组#1(特征名称)同级别信元的标识信息置为true，与小数据传输#1(特征名称)同级别信元的标识信息置为false或者default。或者在网络切片组#1的同一层或下一层信元包括标识信息，在小数据传输#1的同一层或下一层信元不包括标识信息。则表示网络切片组#1对应的随机接入优先级为随机接入优先级#1，小数据传输#1对应的随机接入优先级不是随机接入优先级#1，换句话说随机接入优先级#1适用的特征为网络切片组#1，不适用的特征为小数据传输#1。
示例地，包括第二对应关系的信元结构的通用定义可如表3所示：
表3
信元
随机接入信道分区标识
>特征集合
>>特征名称
>>标识信息(Flag)
>随机接入优先级
>>高优先级功率抬升步长
>>缩放因子BI
在表3中，信元结构的第一层为随机接入信道分区标识，第二层为特征集合和随机接入优先级，第三层为特征名称和标识信息，即第一层的随机接入信道分区标识对应的随机接入优先级在第二层给出，第二层给出的随机接入优先级适用的特征在第三层标识信息体现，假设第三层中特定特征对应的标识信息置为true，或者特定特征的同一层或下一层包括标识信息，则该特定特征对应的随机接入优先级即为第二层给出的随机接入优先级。如果第三层中某个特征对应的标识信息置为false或者default，或者该特定特征的同一层或下一层不包括标识信息，则表示该特征不适用第二层给出的随机接入优先级。
应理解，上述步骤S310’，以及S311中网络设备以随机接入信道分区为粒度广播随机接入优先级的方案，相较于步骤S310中网络设备以特征为粒度配置随机接入优先级的方案而言，广播的信令开销小。
步骤S320，网络设备向终端设备发送第一指示信息，该第一指示信息指示第一随机接入优先级和/或第二随机接入优先级的排序，对应的，终端设备接收该第一指示信息。
示例地，网络设备向终端设备发送第一指示信息，该第一指示信息指示至少两个随机接入优先级的排序，其中包括第一随机接入优先级和/或第二随机接入优先级的排序。
或，网络设备向终端设备发送第一指示信息，该第一指示信息指示，在业务对应至少两个特征时，终端设备使用专用的随机接入优先级进行随机接入。
示例地，第一指示信息指示在业务(终端设备发起的某一个业务)对应至少两个特征时，终端设备使用专用的随机接入优先级进行随机接入。专用的随机接入优先级由网络设备设置，用于终端设备发起的业务对应至少两个特征的场景，该专用的随机接入优先级可以不同于网络设备为任意一个特征配置的随机接入优先级。例如，在终端设备随机接入前可以接收到网络设备的广播消息，该广播消息中包括该专用的随机接入优先级。网络设备可根据网络侧资源情况或者运营商策略预先配置多特征场景(一个业务对应至少两个特征的场景)下专用的随机接入优先级，应理解，网络设备可以结合终端设备的能力信息自适应修改专用的随机接入优先级，例如终端设备在网络设备驻留过，网络设备保存了终端设备的能力信息。
若第一指示信息指示了至少两个随机接入优先级的排序，其中包括第一随机接入优先级和/或第二随机接入优先级的排序，则第一指示信息的广播可通过以下方式：
方式#1
示例地，对应于以随机接入信道分区为粒度设置随机接入优先级的方案(对应上文提及的第一种信元结构)，在上述表2的基础上增加第一指示信息的信元(排序)，信元的 位置可以如表4所示，本申请对此不做限制。
表4
信元
特定特征随机接入优先级
>随机接入信道分区标识
>随机接入优先级
>>高优先级功率抬升步长
>>缩放因子BI
排序
示例地，对应于以随机接入信道分区为粒度设置随机接入优先级的方案(对应上文提及的第二种信元结构)，在上述表3的基础上增加第一指示信息的信元(排序)，信元的位置可以如表5所示，本申请对此不做限制。
表5
信元
随机接入信道分区标识
>特征集合
>>特征名称
>>标识信息(Flag)
>随机接入优先级
>>高优先级功率抬升步长
>>缩放因子BI
排序
应理解，表4和表5中的排序这个信元可以赋值，可根据赋值的大小确定排序的前后，排序靠前的随机接入优先级在随机接入过程中优先使用，例如，第一业务对应的随机接入优先级包括随机接入优先级#1和随机接入优先级#2，随机接入优先级#1的排序为3，随机接入优先级#2的排序为2，则终端设备在随机接入过程中优先选择随机接入优先级#2，在上述选择的过程中，排序的取值越小，表示排序越靠前，终端设备在选择时越优先选择，当然也可以反之，排序的取值越大，表示排序越靠前，终端设备在选择时越优先选择，本申请对此不做限制。
表4中的排序是与第一级信元特定特征随机接入优先级关联，如果同一特征对应不同随机接入信道分区，则该不同的随机接入信道分区的随机接入优先级的排序是相同的。例如，网络切片组#1对应随机接入信道分区#1，网络切片组#2对应随机接入信道分区#2，但网络切片组#1和网络切片组#2都属于网络切片特征，因此随机接入信道分区#1和随机接入信道分区#2对应的随机接入优先级的排序是相同的。
表5中的排序与第一级信元随机接入信道分区标识关联，且对于该随机接入信道分区 中包括标识信息(或标识信息置为true)的特征生效。例如，随机接入信道分区#1对应的特征包括网络切片组#1，小数据传输#1，且网络切片组#1和小数据传输#1都包括标识信息(或网络切片组#1和小数据传输#1的标识信息均置为true)，随机接入信道分区#1对应的随机接入优先级为随机接入优先级#1，且随机接入优先级#1的排序为3，即表示网络切片组#1和小数据传输#1对应的随机接入优先级都为随机接入优先级#1，且随机接入优先级#1的排序为3。表5示例的信元结构，可以在随机接入信道分区对应至少两个特征的情况下，相较于表4示例的信元结构(以特征为粒度配置)，能够节省信令的开销。
应理解，对应方式#1，第一指示信息是在表2或表3所示的信元结构中新增加的信元，该信元与特征相关联。因此若某一个随机接入信道分区标识对应的信元结构中没有呈现排序，则可以默认该随机接入信道分区标识对应的随机接入优先级的排序最低(表5)。或者若某一个特征对应的信元结构中没有呈现排序，则可以默认该特征对应的随机接入优先级的排序最低(表4)。
方式#2
在公共参数(例如，BWP-UplinkCommon，本申请对此不做限制)中新增表格指示不同特征对应的随机接入优先级的排序，对应于第二对应关系的第一种信元设置形式，如表6所示，可以指示不同特征对应的随机接入优先级的排序。
表6
  网络切片 MPS/MCS 小数据传输 能力受限
排序 P1 P2 P3 P4
表6中示出了部分特征对应的随机接入优先级的排序，本申请实施例的特征不限于此，其中，P1、P2、P3、P4可取不同的值，例如P1＝3、P2＝4、P3＝2、P4＝1，即，能力受限对应的随机接入优先级的排序最靠前，终端设备随机接入时优先选择能力受限对应的随机接入优先级。
在公共参数(例如，BWP-UplinkCommon，本申请对此不做限制)中新增表格指示不同随机接入信道分区对应的随机接入优先级的排序，对应于第二对应关系的第二种信元设置形式，如表7所示，可以指示不同随机接入信道分区对应的随机接入优先级的排序。
表7
  RACH分区#1 RACH分区#2 RACH分区#3 MPS/MCS
排序 P1 P2 P3 P4
表7中示出了不同随机接入信道分区对应的随机接入优先级的排序，其中，P1、P2、P3、P4可取不同的值，例如P1＝3、P2＝4、P3＝2、P4＝1，即，如果终端设备发起的业务对应的特征分别属于随机接入信道分区#2和随机接入信道分区#3，则选择随机接入信道分区#3对应的随机接入优先级进行随机接入。
应理解，表7中将MPS/MCS特征看作与随机接入信道分区同级别的特征示例，在终端设备发起的包括MPS/MCS特征的业务可以从随机接入信道分区#1，随机接入信道分区#2，随机接入信道分区#3中的任意一个随机接入信道分区所对应的随机接入资源进行随机接入的情况下，网络设备以随机接入信道分区为粒度配置随机接入优先级时，会单独为MPS/MCS特征配置随机接入优先级，因此也会为MPS/MCS特征单独配置随机接入优先级的排序。
方式#3
在公共参数(例如，BWP-UplinkCommon，本申请对此不做限制)中新增表格指示不同特征对应的随机接入优先级的参数(包括高优先级功率抬升步长和缩放因子BI)的排序，对应于第二对应关系的第一种信元设置形式，如表8所示，可以指示不同特征对应的随机接入优先级的参数的排序。
表8
Figure PCTCN2023070313-appb-000001
在公共参数(例如，BWP-UplinkCommon，本申请对此不做限制)中新增表格指示不同特征对应的随机接入优先级的参数(包括高优先级功率抬升步长和缩放因子BI)的排序，对应于第二对应关系的第二种信元设置形式，如表9所示，可以指示不同随机接入信道分区对应的随机接入优先级的参数的排序。
表9
Figure PCTCN2023070313-appb-000002
应理解，表8和表9所示的不同随机接入优先级参数的排序是独立的，即终端设备选择随机接入优先级参数时，可以分别选择排序靠前的高优先级功率抬升步长，以及排序靠前的缩放因子BI，排序的取值越小，排序越靠前，终端设备越优先选择。例如，表9中的高优先级功率抬升步长中P3取值最小，缩放因子BI中Q1取值最小，则终端设备选择随机接入优先级参数时选择随机接入信道分区#3对应的高优先级功率抬升步长，以及随机接入信道分区#1对应的缩放因子BI。方式3中高优先级功率抬升步长和缩放因子BI可以分开选择，相较于方式2更灵活，方式2与方式3相比更为节省信令开销。
步骤S330，终端设备确定第一特征对应的随机接入优先级和第二特征对应的第二随机接入优先级，该第一特征和第二特征为业务对应的特征。
示例地，对应于上述步骤S310，终端设备通过网络设备发送的至少两个特征对应的随机接入优先级，确定第一特征对应的第一随机接入优先级和第二特征对应的第二随机接入优先级，具体的确定过程可参考步骤S210中的方式1。
可选地，对应于上述步骤S310’，终端设备可参考第一对应关系和第二对应关系确定第一特征对应的第一随机接入优先级和第二特征对应的第二随机接入优先级。
示例地，终端设备发起的业务对应的特征包括第一特征和第二特征，其中第一特征为网络切片#1，第二特征为小数据传输#2，参考第一对应关系确定网络切片#1对应的随机接入信道分区为随机接入信道分区#1，小数据传输#2对应的随机接入信道分区为随机接入信道分区#2，参考第二对应关系(第二对应关系的第一种信元结构)确定随机接入信道分区#1对应的随机接入优先级为随机接入优先级#1，随机接入信道分区#2对应的随机接入 优先级为随机接入优先级#2。则确定该业务对应的随机接入优先级包括随机接入优先级#1和随机接入优先级#2。
应理解，当第二对应关系为第二种信元结构时，终端设备需要结合标识信息确定第一特征对应的第一随机接入优先级和第二特征对应的第二随机接入优先级。即对应于上述步骤S310’以及S311，终端设备可参考第一对应关系，第二对应关系，以及标识信息确定第一特征对应的第一随机接入优先级和第二特征对应的第二随机接入优先级。
示例地，第一特征为网络切片#1，第二特征为小数据传输#2，参考第一对应关系确定网络切片#1对应的随机接入信道分区为随机接入信道分区#1，小数据传输#2对应的随机接入信道分区为随机接入信道分区#2，参考第二对应关系和标识信息确定随机接入信道分区#1对应的随机接入优先级#1适用的特征为网络切片#1，随机接入信道分区#2对应的随机接入优先级#2适用的特征为小数据传输#2。则确定第一业务对应的随机接入优先级包括随机接入优先级#1和随机接入优先级#2。
应理解，步骤S310是指示至少两个特征的随机接入优先级的一种方案，步骤S310’和步骤S311是指示至少两个特征的随机接入优先级的另一种并列方案。
可选地，步骤S310’和步骤S311中的信息可承载于同一广播消息。
或者，步骤S310’和步骤S311中的信息可分别，或同时承载于其他的网络设备向终端设备发送的消息中，本申请对此不做限制。
还应理解，上述步骤S310和步骤S320为网络设备下发至少两个特征对应的随机接入优先级以及不同随机接入优先级的排序的一种方案，步骤S310’，步骤S311和S320为网络设备下发至少两个特征对应的随机接入优先级以及不同随机接入优先级的排序的另一种方案。
可选地，步骤S310和步骤S320中的信息可承载于同一广播消息(或其他的网络设备向终端设备发送的消息)。
或者步骤S310’，步骤S311和S320中的信息可承载于同一广播消息(或其他的网络设备向终端设备发送的消息)。
步骤S340，终端设备参考第一指示信息确定终端设备进行随机接入使用的随机接入优先级。
示例地，终端设备参考第一指示信息确定第一随机接入优先级和第二随机接入优先级的排序，将排序最高的随机接入优先级确定为后续进行随机接入使用的随机接入优先级。
或者，示例地，终端设备发起的业务对应3个特征，包括网络切片组#1，小数据传输#2，MPS，网络切片组#1对应的随机接入优先级为随机接入优先级#1，小数据传输#2对应的随机接入优先级为随机接入优先级#2，MPS对应的随机接入优先级为随机接入优先级#3，假设第一指示信息指示随机接入优先级#2的排序＞随机接入优先级#3的排序＞随机接入优先级#1的排序，则终端设备将随机接入优先级#2确定为进行随机接入使用的随机接入优先级。
应理解，当终端设备发起的业务对应更多特征时，终端设备参考第一指示信息确定进行随机接入使用的随机接入优先级的方法与上述描述类似，在此不做赘述。
可选地，方法300还包括：
步骤S350，在终端设备使用随机接入优先级第一次随机接入失败的情况下，终端设备 确定再次随机接入使用的随机接入优先级。
可选地，终端设备可参考第一指示信息确定第二次随机接入使用的随机接入优先级。
示例地，假设第一指示信息指示随机接入优先级#2的排序＞随机接入优先级#3的排序＞随机接入优先级#1的排序，则终端设备将随机接入优先级#2确定为第一次随机接入使用的随机接入优先级，在终端设备使用该随机接入优先级随机接入失败的情况下，终端设备将随机接入优先级#3确定为第二次随机接入使用的随机接入优先级，若第二次随机接入失败，后续同样可参考第一指示信息选择随机接入优先级进行再次随机接入，直至随机接入成功。
应理解，终端设备在预定的尝试次数或者时间内没有成功接入网络，即为随机接入失败，尝试次数或者预定时间可预先配置。
在方法300中，网络设备通过在广播消息中新增第一指示信息，解决了网络设备在下发不同特征对应的随机接入优先级，且终端设备发起的业务对应至少两个特征的情况下，终端设备应该如何选择随机接入优先级来进行随机接入的问题。方法300不仅可以实现网络设备对终端设备行为的集中管理，也可减少终端设备实现的复杂度。
图5是本申请实施例提供的另一种确定随机接入优先级的方法流程交互图。图5所示的方法500为网络设备向终端设备简单指示(相较于方法300)从多个随机接入优先级中确定进行随机接入使用的随机接入优先级的方案，包括：
步骤S510，同步骤S310，参见S310的描述，在此不再赘述。
步骤S510’，同步骤S310’，参见S310’的描述，在此不再赘述。
步骤S511，同步骤S311，参见S311的描述，在此不再赘述。
步骤S520，网络设备向终端设备发送第二指示信息，该第二指示信息指示终端设备使用第一特征对应的随机接入优先级，对应的，终端设备接收该第二指示信息。
可选地，网络设备在广播消息(例如SIB1)中新增第二指示信息。
可选地，网络设备在按需广播(on demand SI)消息中新增第二指示信息。
应理解，在该方式中终端设备会请求网络设备该第二指示信息，网络设备向请求的终端设备广播该第二指示信息，请求的终端设备可以是1个，2个，或多个。
可选地，网络设备向终端设备发送RRC信令，该RRC信令中包括该第二指示信息。
应理解，除了上述广播方式，网络设备还可以以其他方式向终端设备发送该第二指示信息，本申请对此不做限制。
以网络设备在广播消息中新增第二指示信息示例，该第二指示信息可通过以下方式广播：
方式#1
对应于以随机接入信道分区为粒度设置随机接入优先级的方案，且对应于第二对应关系的第一种信元设置形式，第二指示信息在信元中的位置可如表10所示：
表10
信元
特定特征随机接入优先级
>随机接入信道分区标识
>随机接入优先级
>>高优先级功率抬升步长
>>缩放因子BI
第二指示信息
假设表10中第二指示信息对应的特征为网络切片，且第二指示信息的取值为true(或网络切片对应的信元中包括第二指示信息，或第二指示信息为1比特的信息，该1比特信息表示为1)时，则终端设备选择网络切片(第一特征)对应的随机接入优先级，即在终端设备发起的业务对应的特征包括网络切片和小数据传输时，使用网络切片对应的随机接入优先级进行随机接入。
应理解，若某一个特征的信元结构中不包括第二指示信息时，在终端设备发起的业务对应两个以上特征的情况下，不选择该特征对应的随机接入优先级。或者假设第二指示信息指示的第一特征，不属于终端设备发起的业务对应的特征时，终端设备不使用该第一特征对应的随机接入优先级进行随机接入。例如第二指示信息指示终端设备使用小数据传输对应的随机接入优先级，但是终端设备发起的业务对应的特征不包括小数据传输，此时终端设备不选择小数据传输对应的随机接入优先级进行随机接入。
可选地，网络设备在广播消息(例如SIB1)中新增第二指示信息，对应于以随机接入信道分区为粒度设置随机接入优先级的方案，且对应于第二对应关系的第二种信元设置形式，第二指示信息在信元中的位置可如表11所示：
表11
信元
随机接入信道分区标识
>特征集合
>>特征名称
>>标识信息(Flag)
>随机接入优先级
>>高优先级功率抬升步长
>>缩放因子BI
第二指示信息
假设表11中第二指示信息对应的随机接入信道分区为随机接入信道分区#1，且第二指示信息的取值为true时，则终端设备选择随机接入信道分区#1(第一特征为随机接入信道分区#1中标识信息为true的特征，或第一特征为随机接入信道分区#1中包括标识信息的特征)对应的随机接入优先级，即在终端设备发起的业务对应的特征包括网络切片(对应随机接入信道分区#1，网络切片的标识信息置为true，或网络切片包括标识信息)和小数据传输(对应随机接入信道分区#2)时，使用随机接入信道分区#1对应的随机接入优先级进行随机接入。
方式#2
在公共参数(例如，BWP-UplinkCommon，本申请对此不做限制)中新增表示第二指示信息的表格，对应于第二对应关系的第一种信元设置形式，表示第二指示信息的表格例如表12所示：
表12
  网络切片 MPS/MCS 小数据传输 能力受限
第二指示信息 - - true -
如表12所示，当终端设备发起的业务对应的特征包括小数据传输时，可以选择小数据传输对应的随机接入优先级进行随机接入。“-”表示false或者default，后文表中出现的“-”同样理解。
在公共参数(例如，BWP-UplinkCommon，本申请对此不做限制)中新增表示第二指示信息的表格，对应于第二对应关系的第二种信元设置形式，表示第二指示信息的表格例如表13所示：
表13
  RACH分区#1 RACH分区#2 RACH分区#3 MPS/MCS
第二指示信息 - true - -
如表13所示，当终端设备发起的业务对应的其中一个特征属于随机接入信道分区#2时，终端设备选择随机接入信道分区#2对应的随机接入优先级进行随机接入。
应理解，表13中将MPS/MCS特征看作与随机接入信道分区同级别的特征示例，在终端设备发起的包括MPS/MCS特征的业务可以从随机接入信道分区#1，随机接入信道分区#2，随机接入信道分区#3中的任意一个随机接入信道分区对应的随机接入资源进行随机接入的情况下，网络设备以随机接入信道分区为粒度配置随机接入优先级时，会单独为MPS/MCS特征配置随机接入优先级，因此在配置第二指示信息时将MPS/MCS单独看待。
方式#3
在公共参数(例如，BWP-UplinkCommon，本申请对此不做限制)中新增表示第二指示信息的表格，对应于第二对应关系的第一种信元设置形式，表示第二指示信息的表格例如表14所示：
表14
Figure PCTCN2023070313-appb-000003
如表14所示，当终端设备发起的业务对应的特征包括MPS和网络切片时，终端设备选择MPS对应的高优先级功率抬升步长，以及网络切片对应的缩放因子BI进行随机接入。当终端设备发起的业务对应的特征包括MPS和小数据传输时，终端设备选择MPS对应的高优先级功率抬升步长，且只参考第二指示信息无法选择缩放因子BI。
在公共参数(例如，BWP-UplinkCommon，本申请对此不做限制)中新增表示第二指示信息的表格，对应于第二对应关系的第二种信元设置形式，表示第二指示信息的表格例如表15所示：
表15
Figure PCTCN2023070313-appb-000004
Figure PCTCN2023070313-appb-000005
如表15所示，当终端设备发起的业务对应的特征包括网络切片#1和小数据传输#2，网络切片#1属于随机接入信道分区#1，小数据传输#2属于随机接入信道分区#2时，终端设备选择随机接入信道分区#2对应的高优先级功率抬升步长，以及随机接入信道分区#1对应的缩放因子BI进行随机接入。
应理解，步骤S510是指示至少两个特征的随机接入优先级的一种方案，步骤S510’和步骤S511是指示至少两个特征的随机接入优先级的另一种并列方案。
可选地，步骤S510’和步骤S511中的信息可承载于同一广播消息。
还应理解，上述步骤S510和步骤S520为网络设备下发至少两个特征对应的随机接入优先级以及第二指示信息的一种方案，步骤S510’，步骤S511和S520为网络设备下发至少两个特征对应的随机接入优先级以及第二指示信息的另一种方案。
可选地，步骤S510和步骤S520中的信息可承载于同一广播消息(或其他的网络设备向终端设备发送的消息)。
或者步骤S510’，步骤S511和S520中的信息可承载于同一广播消息(或其他的网络设备向终端设备发送的消息)。
步骤S530，同步骤S330，参见S330的描述，在此不再赘述。
步骤S540，终端设备参考第二指示信息确定终端设备进行随机接入使用的随机接入优先级。
示例地，终端设备参考第二指示信息确定使用第一特征对应的随机接入优先级，即将第一特征对应的随机接入优先级确定为终端设备进行随机接入使用的随机接入优先级。
或者，示例地，终端设备发起的业务对应3个特征，包括网络切片组#1，小数据传输#2，MPS，网络切片组#1对应的随机接入优先级为随机接入优先级#1，小数据传输#2对应的随机接入优先级为随机接入优先级#2，MPS对应的随机接入优先级为随机接入优先级#3，假设第二指示信息指示终端设备使用网络切片对应的随机接入优先级，则终端设备将随机接入优先级#1确定为进行随机接入使用的随机接入优先级。
可选地，终端设备参考第二指示信息，以及第一信息确定进行随机接入使用的随机接入优先级，第一信息包括以下至少一项：业务的时延需求信息或所述终端设备的能力信息。
示例地，当终端设备参考第二指示信息确定不了进行随机接入使用的随机接入优先级时，还需结合第一信息确定进行随机接入使用的随机接入优先级，假设第二指示信息指示终端设备使用小数据传输对应的随机接入优先级，但是终端设备发起的业务对应的特征不包括小数据传输，此时需结合第一信息确定。具体地终端设备参考第一信息如何确定进行随机接入使用的随机接入优先级可参见方法600的步骤S630。
可选地，方法500还包括：
步骤S550，在终端设备使用随机接入优先级第一次随机接入失败的情况下，终端设备确定再次进行随机接入使用的随机接入优先级。
示例地，假设第二指示信息指示终端设备使用小数据传输对应的随机接入优先级，在在终端设备使用该随机接入优先级在预定的尝试次数或者时间内随机接入失败的情况下，终端设备参考第一信息确定第二次随机接入使用的随机接入优先级，若第二次随机接入失败，后续同样可参考第一信息选择随机接入优先级进行再次随机接入，直至随机接入成功。
在方法500中，终端设备能够基于网络设备下发的简单的指示信息，在终端设备发起的业务对应至少两个特征的情况下选择出用于随机接入的随机接入优先级。该方法是一种折中方案，相较于方法300而言，节省网络设备的广播信令开销，并且终端设备的实现具备一定程度的灵活性。
图6是本申请实施例提供的又一种确定随机接入优先级的方法流程交互图。图6所示的方法600为终端设备不依赖于网络设备的指示可自行从至少两个随机接入优先级中确定进行随机接入使用的随机接入优先级的方案，包括：
步骤S610，同步骤S310和S510，参见S310的描述，在此不再赘述。
步骤S610’，同步骤S310’和S510’，参见S310’的描述，在此不再赘述。
步骤S611，同步骤S311和S511，参见S311的描述，在此不再赘述。
应理解，步骤S610是指示至少两个特征的随机接入优先级的一种方案，步骤S610’和步骤S611是指示至少两个特征的随机接入优先级的另一种并列方案。
可选地，步骤S610’和步骤S611中的信息可承载于同一广播消息。
步骤S620，同步骤S320和S520，参见S320的描述，在此不再赘述。
步骤S630，终端设备参考第一信息确定进行随机接入使用的随机接入优先级，第一信息包括以下至少一项：业务的时延需求信息或所述终端设备的能力信息。
可选地，终端设备参考第一信息确定随机接入优先级的排序，进而将排序最靠前的随机接入优先级确定为进行随机接入使用的随机接入优先级。
应理解，终端设备参考第一信息确定随机接入优先级的排序，可以是终端设备参考第一信息确定随机接入优先级的排序，也可以是终端设备参考第一信息和其他信息(可以是第一指示信息、第二指示信息、或除第一指示信息和第二指示信息之外的信息)确定随机接入优先级的排序。上文中涉及的终端设备参考第一指示信息或第二指示信息确定随机接入优先级的排序也是同样理解，本申请对此不做限制。
示例地，终端设备发起的业务对应的特征包括网络切片#2，关键任务业务，和能力受限#3，终端设备根据广播消息确定网络切片#2，关键任务业务，和能力受限#3对应的随机接入优先级，其中每个特征对应的随机接入优先级参数的取值如表16所示。
表16
Figure PCTCN2023070313-appb-000006
示例地，终端设备考虑发起的业务的时延需求信息，优先满足低时延的业务需求，即随机接入优先级参数缩放因子BI优先选择较小的数值，在表16中，缩放因子BI优先选择0，其次依次为0.25和0.75，也就是说按照时延需求信息随机接入优先级的排序从前往后依次是，网络切片#2对应的随机接入优先级，MCS对应的随机接入优先级，能力受限#3对应的随机接入优先级。
当考虑终端设备的能力信息时，假设终端设备的最大上行发射功率与初始上行发射功 率之间的差值为10dB，高优先级功率抬升步长的取值应小于10dB的一半(即5dB)，如表16所示，虽然网络切片#2对低时延要求最高，但其要求的高优先级功率抬升步长6dB大于5dB，因此结合时延需求信息和终端设备的能力信息选择MCS对应的随机接入优先级来进行随机接入。
应理解，上述示例的确定进行随机接入使用的随机接入优先级的方式仅为举例，终端设备还可以参考业务对应的至少两个特征的随机接入优先级参数的平均取值确定后续进行随机接入使用的随机接入优先级，或者终端设备还可以参考其他的方式确定后续进行随机接入使用的随机接入优先级，本申请对此不做限制。
上述终端设备参考第一信息从随机接入优先级中确定进行随机接入使用的随机接入优先级的规则既可以由终端设备自行实现(自行实现可以是终端设备的一种选择策略，由终端厂家自行决定)，也可以是终端设备的预配置信息(所有终端设备，即来自不同厂家的终端设备参考标准协议预配置同样的选择策略)。
可选地，方法600还包括：
步骤S640，在终端设备使用随机接入优先级第一次随机接入失败的情况下，终端设备确定再次随机接入使用的随机接入优先级。
示例地，假设终端设备使用参考第一信息确定的随机接入优先级在预定的尝试次数或者时间内随机接入失败的情况下，终端设备可参考第一信息确定第二次随机接入使用的随机接入优先级，确定过程与终端设备参考第一信息确定第一次随机接入使用的随机接入优先级的过程类似，在此不做赘述。若第二次随机接入失败，后续同样可参考第一信息选择随机接入优先级进行再次随机接入，直至随机接入成功。
在方法600中，终端设备能够基于网络设备下发的至少两个特征对应的随机接入优先级，且在终端设备发起的业务对应至少两个特征的情况下，参考预定规则选择出用于随机接入的随机接入优先级。该方法600相较于方法300和500而言，节省信令开销，且在终端设备实现上更具灵活性。
应理解，上述表1-表16中的信元结构仅为示例，本申请对此不做限制，其他能达到上述表中示例的信元结构的功能的其他信元结构也在本申请的保护范围内。上述流程图3-6中所示的虚线步骤为可选的步骤，并且各步骤的先后顺序依照方法的内在逻辑确定，图3-6中所示的序号仅为示例，不对本申请步骤的先后顺序造成限制。
还应理解，本申请实施例提供的方法可以单独使用，也可以结合使用，本申请对此不做限制。
应理解，本申请中术语“和/或”，仅仅是一种描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B这三种情况，其中A,B可以是单数或者复数。另外，本文中字符“/”，一般表示前后关联对象是一种“或”的关系，但也可能表示的是一种“和/或”的关系，具体可参考前后文进行理解。
本申请中，“至少一个项(个)“是指一项(个)或者多项(个)，“至少两项(个)“以及“多项(个)”是指两项(个)或两项(个)以上。“以下至少一项(个)”或其类似表达，是指的这些项中的任意组合，包括单项(个)或复数项(个)的任意组合。例如，a,b,或c中的至少一项(个)，可以表示：a,b,c,a-b,a-c,b-c,或a-b-c，其中a,b,c可以是单 个，也可以是多个。
需注意的是，图3-6中示意的执行主体仅为示例，该执行主体也可以是支持该执行主体实现图3-6所示方法的芯片、芯片系统、或处理器，本申请对此不作限制。
上文结合附图描述了本申请实施例的方法实施例，下面描述本申请实施例的装置实施例。可以理解，方法实施例的描述与装置实施例的描述可以相互对应，因此，未描述的部分可以参见前面方法实施例。
可以理解的是，上述各个方法实施例中，由终端设备实现的方法和操作，也可以由可用于终端设备的部件(例如芯片或者电路)实现，由网络设备实现的方法和操作，也可以由可用于网络设备的部件(例如芯片或者电路)实现。
上述主要从各个网元之间交互的角度对本申请实施例提供的方案进行了介绍。可以理解的是，各个网元，例如发射端设备或者接收端设备，为了实现上述功能，其包含了执行各个功能相应的硬件结构和/或软件模块。本领域技术人员应该可以意识到，结合本文中所公开的实施例描述的各示例的单元及算法步骤，本申请能够以硬件或硬件和计算机软件的结合形式来实现。某个功能究竟以硬件还是计算机软件驱动硬件的方式来执行，取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能，但是这种实现不应认为超出本申请的范围。
本申请实施例可以根据上述方法示例对发射端设备或者接收端设备进行功能模块的划分，例如，可以对应各个功能划分各个功能模块，也可以将两个或两个以上的功能集成在一个处理模块中。上述集成的模块既可以采用硬件的形式实现，也可以采用软件功能模块的形式实现。需要说明的是，本申请实施例中对模块的划分是示意性的，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式。下面以采用对应各个功能划分各个功能模块为例进行说明。
图7是本申请实施例提供的通信装置的示意性框图。图7所示的通信装置700包括收发单元710和处理单元720。收发单元710可以与外部进行通信，处理单元720用于进行数据处理。收发单元710还可以称为通信接口或通信单元。
可选地，该通信装置700还可以包括存储单元，该存储单元可以用于存储指令或者和/或数据，处理单元720可以读取存储单元中的指令或者和/或数据。
在一种设计中，通信装置700可以用于执行上文方法实施例(方法200，300，或500)中终端设备所执行的动作。
可选地，该通信装置700可以为终端设备，收发单元710用于执行上文方法实施例中终端设备的接收或发送的操作，处理单元720用于执行上文方法实施例中终端设备内部处理的操作。
可选地，该通信装置700可以为包括终端设备的设备。或者，该通信装置700可以为配置在终端设备中的部件，例如，终端设备中的芯片。这种情况下，收发单元710可以为接口电路、管脚等。具体地，接口电路可以包括输入电路和输出电路，处理单元720可以包括处理电路。
一种可能的实现方式中，处理单元720用于确定第一特征对应的第一随机接入优先级和第二特征对应的第二随机接入优先级，该第一特征和第二特征为业务对应的特征，并参考该第一随机接入优先级和第二随机接入优先级的排序确定终端设备进行随机接入使用 的随机接入优先级。
一种可能的实现方式中，该第一特征或第二特征包括以下任一项：网络切片、小数据传输、覆盖增强、能力受限、多媒体优先级业务、或关键任务业务。
一种可能的实现方式中，收发单元710用于接收来自网络设备的第一指示信息，该第一指示信息指示该第一随机接入优先级和/或第二随机接入优先级的排序。
一种可能的实现方式中，该第一随机接入优先级和/或第二随机接入优先级的排序是基于第一信息确定的，该第一信息包括以下至少一项：业务的时延需求信息，或终端设备的能力信息。
一种可能的实现方式中，收发单元710用于接收来自网络设备的第二指示信息，该第二指示信息指示该终端设备使用第一特征对应的随机接入优先级，处理单元720用于参考该第二指示信息确定终端设备进行随机接入使用的随机接入优先级。
一种可能的实现方式中，处理单元720还用于参考该第二指示信息，以及第一信息确定终端设备进行随机接入使用的随机接入优先级，第一信息包括以下至少一项：业务的时延需求信息，或终端设备的能力信息。
一种可能的实现方式中，在终端设备第一次使用随机接入优先级随机接入失败的情况下，处理单元720还用于参考第一随机接入优先级和第二随机接入优先级的排序确定第二次进行随机接入使用的随机接入优先级。
一种可能的实现方式中，收发单元710还用于接收来自网络设备的第一对应关系和第二对应关系，该第一对应关系包括随机接入信道分区和特征的对应关系，该第二对应关系包括随机接入信道分区和随机接入优先级的对应关系，处理单元720还用于参考该第一对应关系，以及第二对应关系确定第一特征对应的第一随机接入优先级和第二特征对应的第二随机接入优先级。
一种可能的实现方式中，收发单元710还用于接收来自网络设备的标识信息，该标识信息指示随机接入信道分区对应的随机接入优先级适用的特征，处理单元720还用于参考该第一对应关系，该第二对应关系，以及该标识信息确定该第一特征对应的第一随机接入优先级和/或第二特征对应的第二随机接入优先级。
在另一种设计中，图7所示的通信装置700可以用于执行上文方法实施例(方法300，或500)中网络设备所执行的动作。
可选地，该通信装置700可以为网络设备，收发单元710用于执行上文方法实施例中网络设备的接收或发送的操作，处理单元720用于执行上文方法实施例中网络设备内部处理的操作。
可选地，该通信装置700可以为包括网络设备的设备。或者，该通信装置700可以为配置在网络设备中的部件，例如，网络设备中的芯片。这种情况下，收发单元710可以为接口电路、管脚等。具体地，接口电路可以包括输入电路和输出电路，处理单元720可以包括处理电路。
一种可能的实现方式中，收发单元710用于向终端设备发送第一对应关系和第二对应关系，该第一对应关系包括该随机接入信道分区和特征的对应关系，该第二对应关系包括随机接入信道分区和随机接入优先级的对应关系，该第一对应关系以及该第二对应关系用于确定第一特征对应的第一随机接入优先级和/或第二特征对应的第二随机接入优先级， 第一特征和第二特征为业务对应的特征，该收发单元710还用于向终端设备发送第一指示信息，该第一指示信息指示该第一随机接入优先级和/或第二随机接入优先级的排序。
一种可能的实现方式中，收发单元710用于向终端设备发送第一对应关系和第二对应关系，该第一对应关系包括该随机接入信道分区和特征的对应关系，该第二对应关系包括随机接入信道分区和随机接入优先级的对应关系，该第一对应关系以及该第二对应关系用于确定第一特征对应的第一随机接入优先级和/或第二特征对应的第二随机接入优先级，第一特征和第二特征为业务对应的特征，该收发单元710还用于向终端设备发送第二指示信息，该第二指示信息指示终端设备使用第一特征对应的随机接入优先级。
一种可能的实现方式中，该第一特征或第二特征包括以下任一项：网络切片，小数据传输、覆盖增强、能力受限、多媒体优先级业务、或关键任务业务。
一种可能的实现方式中，该收发单元710还用于向终端设备发送标识信息，该标识信息指示随机接入信道分区对应的随机接入优先级适用的特征，该标识信息用于确定第一特征对应的第一随机接入优先级和/或第二特征对应的第二随机接入优先级。
如图8所示，本申请实施例还提供一种通信装置800。该通信装置800包括处理器810，处理器810与存储器820耦合，存储器820用于存储计算机程序或指令或者和/或数据，处理器810用于执行存储器820存储的计算机程序或指令和/或者数据，使得上文方法实施例中的方法被执行。
可选地，该通信装置800包括的处理器810为一个或多个。
可选地，如图8所示，该通信装置800还可以包括存储器820。
可选地，该通信装置800包括的存储器820可以为一个或多个。
可选地，该存储器820可以与该处理器810集成在一起，或者分离设置。
可选地，如图8所示，该通信装置800还可以包括收发器830和/或通信接口，收发器830和/或通信接口用于信号的接收和/或发送。例如，处理器810用于控制收发器830和/或通信接口进行信号的接收和/或发送。
作为一种方案，该通信装置800用于实现上文方法实施例中由终端设备执行的操作。例如，处理器810用于实现上文方法实施例中由终端设备内部执行的操作(例如步骤S210、步骤S220、步骤S330、步骤S340、步骤S350、步骤S530、步骤S540、步骤S550、步骤S620、步骤S630、或步骤S640的操作)，收发器830用于实现上文方法实施例中由终端设备执行的接收或发送的操作(例如步骤S310、步骤S310’、步骤S311、步骤S320、步骤S510、步骤S510’、步骤S511、步骤S520、步骤S610、步骤S610’、或步骤S611的操作)。
作为一种方案，该通信装置800用于实现上文方法实施例中由网络设备执行的操作。例如，处理器810用于实现上文方法实施例中由网络设备内部执行的操作，收发器830用于实现上文方法实施例中由网络设备执行的接收或发送的操作(例如步骤S310、步骤S310’、步骤S311、步骤S320、步骤S510、步骤S510’、步骤S511、步骤S520、步骤S610、步骤S610’、或步骤S611的操作)。
本申请实施例还提供一种通信装置900，该通信装置900可以是终端设备，也可以是芯片。该通信装置900可以用于执行上述方法实施例(方法200，300，或500)中由终端设备所执行的操作。
当该通信装置900为终端设备时，图9示出了一种简化的终端设备的结构示意图。如图9所示，终端设备包括处理器、存储器、射频电路、天线以及输入输出装置。处理器主要用于对通信协议以及通信数据进行处理，以及对终端设备进行控制，执行软件程序，处理软件程序的数据等。存储器主要用于存储软件程序和数据。射频电路主要用于基带信号与射频信号的转换以及对射频信号的处理。天线主要用于收发电磁波形式的射频信号。输入输出装置，例如触摸屏、显示屏，键盘等主要用于接收用户输入的数据以及对用户输出数据。需要说明的是，有些种类的终端设备可以不具有输入输出装置。
当需要发送数据时，处理器对待发送的数据进行基带处理后，输出基带信号至射频电路，射频电路将基带信号进行射频处理后将射频信号通过天线以电磁波的形式向外发送。当有数据发送到终端设备时，射频电路通过天线接收到射频信号，将射频信号转换为基带信号，并将基带信号输出至处理器，处理器将基带信号转换为数据并对该数据进行处理。为便于说明，图9中仅示出了一个存储器和处理器，在实际的终端设备产品中，可以存在一个或多个处理器和一个或多个存储器。存储器也可以称为存储介质或者存储设备等。存储器可以是独立于处理器设置，也可以是与处理器集成在一起，本申请实施例对此不做限制。
在本申请实施例中，可以将具有收发功能的天线和射频电路视为终端设备的收发单元，将具有处理功能的处理器视为终端设备的处理单元。
如图9所示，终端设备包括收发单元910和处理单元920。收发单元910也可以称为收发器、收发机、收发装置或收发电路等。处理单元920也可以称为处理器，处理单板，处理模块、处理装置等。
可选地，可以将收发单元910中用于实现接收功能的器件视为接收单元，将收发单元910中用于实现发送功能的器件视为发送单元，即收发单元910包括接收单元和发送单元。接收单元有时也可以称为接收机、接收器、接收装置或接收电路等。发送单元有时也可以称为发射机、发射器、发射装置或发射电路等。
例如，在一种实现方式中，处理单元920用于执行图2中终端设备侧的处理动作。例如，处理单元920用于执行图2中的步骤S210，S220中的处理步骤。
又如，在一种实现方式中，处理单元920用于执行图3中的步骤S330,S340，或S350中的处理步骤；收发单元910用于执行图3中的步骤S310，S310’，S311，或S320中的收发操作。
又如，在一种实现方式中，处理单元920用于执行图5中的步骤S530,S540，或S550中的处理步骤；收发单元910用于执行图5中的步骤S510，S510’，S511，或S520中的收发操作。
又如，在一种实现方式中，处理单元920用于执行图6中的步骤S620,S630，或S640中的处理步骤；收发单元910用于执行图6中的步骤S610，S610’，或S611中的收发操作。
应理解，图9仅为示例而非限定，上述包括收发单元和处理单元的终端设备可以不依赖于图9所示的结构。
当该通信装置900为芯片时，该芯片包括收发单元和处理单元。其中，收发单元可以是输入输出电路或通信接口；处理单元可以为该芯片上集成的处理器或者微处理器或者集 成电路。
本申请实施例还提供一种通信装置1000，该通信装置1000可以是网络设备，也可以是芯片。该通信装置1000可以用于执行上述方法实施例中由网络设备所执行的操作。
当该通信装置1000为网络设备(例如基站)时，图10示出了一种简化的网络设备结构示意图。网络设备包括1010部分以及1020部分。1010部分包括天线和射频电路，天线主要用于射频信号的收发，射频电路主要用于射频信号与基带信号的转换。1020部分包括存储器和处理器，主要用于基带处理，对网络设备进行控制等。1010部分通常可以称为收发单元、收发机、收发电路、或者收发器等。1020部分通常是网络设备的控制中心，通常可以称为处理单元，用于控制网络设备执行上述方法实施例中网络设备侧的处理操作。
可选地，可以将1010部分中用于实现接收功能的器件视为接收单元，将用于实现发送功能的器件视为发送单元，即1010部分包括接收单元和发送单元。接收单元也可以称为接收机、接收器、或接收电路等，发送单元可以称为发射机、发射器或者发射电路等。
当需要发送数据时，处理器对待发送的数据进行基带处理后，输出基带信号至射频电路，射频电路将基带信号进行射频处理后将射频信号通过天线以电磁波的形式向外发送。当有数据发送到网络设备时，射频电路通过天线接收到射频信号，将射频信号转换为基带信号，并将基带信号输出至处理器，处理器将基带信号转换为数据并对该数据进行处理。
1020部分可以包括一个或多个单板，每个单板可以包括一个或多个处理器和一个或多个存储器。为便于说明，图10中仅示出了一个存储器和处理器。处理器用于读取和执行存储器中的程序以实现基带处理功能以及对网络设备的控制。若存在多个单板，各个单板之间可以互联以增强处理能力。作为一种可选的实施方式，也可以是多个单板共用一个或多个处理器，或者是多个单板共用一个或多个存储器。
例如，在一种实现方式中，1010部分的收发单元用于执行图3/5/6所示实施例中由网络设备执行的收发相关的步骤(例如步骤S310、步骤S310’、步骤S311、步骤S320、S510、步骤S510’、步骤S511、步骤S520、步骤S610、步骤S610’、或步骤S611的操作)。1020部分用于执行图3/5/6所示实施例中由网络设备执行的处理相关的步骤。
应理解，图10仅为示例而非限定，上述包括收发单元和处理单元的网络设备可以不依赖于图10所示的结构。
当该通信装置1000为芯片时，该芯片包括收发单元和处理单元。其中，收发单元可以是输入输出电路、通信接口；处理单元为该芯片上集成的处理器或者微处理器或者集成电路。
如图11，本申请实施例还提供了一种通信装置1100。该通信装置1100包括逻辑电路1110以及输入/输出接口(input/output interface)1120。
其中，逻辑电路1110可以为通信装置1100中的处理电路。逻辑电路1110可以耦合连接存储单元，调用存储单元中的指令，使得通信装置1100可以实现本申请各实施例的方法和功能。输入/输出接口1120，可以为通信装置1100中的输入输出电路，将通信装置1100处理好的信息输出，或将待处理的数据或信令信息输入通信装置1100进行处理。
作为一种方案，该通信装置1100用于实现上文各个方法实施例中由终端设备执行的操作。
例如，逻辑电路1110用于实现上文方法实施例中由终端设备执行的处理相关的操作， 如，图3-6所示实施例中的终端设备执行的处理相关的操作，输入/输出接口1120用于实现上文方法实施例中由终端设备执行的发送和/或接收相关的操作，如，图3-6所示实施例中的终端设备执行的发送和/或接收相关的操作。逻辑电路1110执行的操作具体可以参见上文对处理单元720的说明，输入/输出接口1120执行的操作可以参见上文对收发单元710的说明，这里不再赘述。
作为另一种方案，该通信装置1100用于实现上文各个方法实施例中由网络设备执行的操作。
例如，逻辑电路1110用于实现上文方法实施例中由网络设备执行的处理相关的操作，如，图3-6所示实施例中的网络设备执行的处理相关的操作，输入/输出接口1120用于实现上文方法实施例中由网络设备执行的发送和/或接收相关的操作，如，图3-6所示实施例中的网络设备执行的发送和/或接收相关的操作。逻辑电路1110执行的操作具体可以参见上文对处理单元820的说明，输入/输出接口1120执行的操作可以参见上文对收发单元810的说明，这里不再赘述。
应理解，上述通信装置可以是一个或多个芯片。例如，该通信装置可以是现场可编程门阵列(field programmable gate array，FPGA)，可以是专用集成芯片(application specific integrated circuit，ASIC)，还可以是系统芯片(system on chip，SoC)，还可以是中央处理器(central processor unit，CPU)，还可以是网络处理器(network processor，NP)，还可以是数字信号处理电路(digital signal processor，DSP)，还可以是微控制器(micro controller unit，MCU)，还可以是可编程控制器(programmable logic device，PLD)或其他集成芯片。
在实现过程中，上述方法的各步骤可以通过处理器中的硬件的集成逻辑电路或者软件形式的指令完成。结合本申请实施例所公开的方法的步骤可以直接体现为硬件处理器执行完成，或者用处理器中的硬件及软件模块组合执行完成。软件模块可以位于随机存储器，闪存、只读存储器，可编程只读存储器或者电可擦写可编程存储器、寄存器等本领域成熟的存储介质中。该存储介质位于存储器，处理器读取存储器中的信息，结合其硬件完成上述方法的步骤。为避免重复，这里不再详细描述。
应注意，本申请实施例中的处理器可以是一种集成电路芯片，具有信号的处理能力。在实现过程中，上述方法实施例的各步骤可以通过处理器中的硬件的集成逻辑电路或者软件形式的指令完成。上述的处理器可以是通用处理器、数字信号处理器(DSP)、专用集成电路(ASIC)、现场可编程门阵列(FPGA)或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件。可以实现或者执行本申请实施例中的公开的各方法、步骤及逻辑框图。通用处理器可以是微处理器或者该处理器也可以是任何常规的处理器等。结合本申请实施例所公开的方法的步骤可以直接体现为硬件译码处理器执行完成，或者用译码处理器中的硬件及软件模块组合执行完成。软件模块可以位于随机存储器，闪存、只读存储器，可编程只读存储器或者电可擦写可编程存储器、寄存器等本领域成熟的存储介质中。该存储介质位于存储器，处理器读取存储器中的信息，结合其硬件完成上述方法的步骤。
可以理解，本申请实施例中的存储器可以是易失性存储器或非易失性存储器，或可包括易失性和非易失性存储器两者。其中，非易失性存储器可以是只读存储器(read-only  memory，ROM)、可编程只读存储器(programmable ROM，PROM)、可擦除可编程只读存储器(erasable PROM，EPROM)、电可擦除可编程只读存储器(electrically EPROM，EEPROM)或闪存。易失性存储器可以是随机存取存储器(random access memory，RAM)，其用作外部高速缓存。通过示例性但不是限制性说明，许多形式的RAM可用，例如静态随机存取存储器(static RAM，SRAM)、动态随机存取存储器(dynamic RAM，DRAM)、同步动态随机存取存储器(synchronous DRAM，SDRAM)、双倍数据速率同步动态随机存取存储器(double data rate SDRAM，DDR SDRAM)、增强型同步动态随机存取存储器(enhanced SDRAM，ESDRAM)、同步连接动态随机存取存储器(synchlink DRAM，SLDRAM)和直接内存总线随机存取存储器(direct rambus RAM，DR RAM)。应注意，本文描述的系统和方法的存储器旨在包括但不限于这些和任意其它适合类型的存储器。
根据本申请实施例提供的方法，本申请还提供一种计算机可读介质，该计算机可读介质存储有程序代码，当该程序代码在计算机上运行时，使得该计算机执行图3-6所示实施例的方法。例如，该计算机程序被计算机执行时，使得该计算机可以实现上述方法实施例中由网络设备执行的方法，或由终端设备执行的方法。
本申请实施例还提供一种包含指令的计算机程序产品，该指令被计算机执行时使得该计算机实现上述方法实施例中由网络设备执行的方法，或由终端设备执行的方法。
上述提供的任一种通信装置中相关内容的解释及有益效果均可参考上文提供的对应的方法实施例，此处不再赘述。
在上述实施例中，可以全部或部分地通过软件、硬件、固件或者其任意组合来实现。当使用软件实现时，可以全部或部分地以计算机程序产品的形式实现。所述计算机程序产品包括一个或多个计算机指令。在计算机上加载和执行所述计算机指令时，全部或部分地产生按照本申请实施例所述的流程或功能。所述计算机可以是通用计算机、专用计算机、计算机网络、或者其他可编程装置。所述计算机指令可以存储在计算机可读存储介质中，或者从一个计算机可读存储介质向另一个计算机可读存储介质传输，例如，所述计算机指令可以从一个网站站点、计算机、服务器或数据中心通过有线(例如同轴电缆、光纤、数字用户线(digital subscriber line，DSL))或无线(例如红外、无线、微波等)方式向另一个网站站点、计算机、服务器或数据中心进行传输。所述计算机可读存储介质可以是计算机能够存取的任何可用介质或者是包含一个或多个可用介质集成的服务器、数据中心等数据存储设备。所述可用介质可以是磁性介质(例如，软盘、硬盘、磁带)、光介质(例如，高密度数字视频光盘(digital video disc，DVD))、或者半导体介质(例如，固态硬盘(solid state disc，SSD))等。
上述各个装置实施例中的网络设备，终端设备与方法实施例中的网络设备，终端设备对应，由相应的模块或单元执行相应的步骤，例如通信单元(收发器)执行方法实施例中接收或发送的步骤，除发送、接收外的其它步骤可以由处理单元(处理器)执行。具体单元的功能可以参考相应的方法实施例。其中，处理器可以为一个或多个。
在本说明书中使用的术语“部件”、“模块”、“系统”等用于表示计算机相关的实体、硬件、固件、硬件和软件的组合、软件、或执行中的软件。例如，部件可以是但不限于，在处理器上运行的进程、处理器、对象、可执行文件、执行线程、程序和/或计算机。通过图示，在计算设备上运行的应用和计算设备都可以是部件。一个或多个部件可驻留在 进程和/或执行线程中，部件可位于一个计算机上和/或分布在两个或更多个计算机之间。此外，这些部件可从在上面存储有各种数据结构的各种计算机可读介质执行。部件可例如根据具有一个或多个数据分组(例如来自与本地系统、分布式系统和/或网络间的另一部件交互的二个部件的数据，例如通过信号与其它系统交互的互联网)的信号通过本地和/或远程进程来通信。
本领域普通技术人员可以意识到，结合本文中所公开的实施例描述的各示例的单元及算法步骤，能够以电子硬件、或者计算机软件和电子硬件的结合来实现。这些功能究竟以硬件还是软件方式来执行，取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能，但是这种实现不应认为超出本申请的范围。
所属领域的技术人员可以清楚地了解到，为描述的方便和简洁，上述描述的系统、装置和单元的具体工作过程，可以参考前述方法实施例中的对应过程，在此不再赘述。
在本申请所提供的几个实施例中，应该理解到，所揭露的系统、装置和方法，可以通过其它的方式实现。例如，以上所描述的装置实施例仅仅是示意性的，例如，所述单元的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，例如多个单元或组件可以结合或者可以集成到另一个系统，或一些特征可以忽略，或不执行。另一点，所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口，装置或单元的间接耦合或通信连接，可以是电性，机械或其它的形式。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的，作为单元显示的部件可以是或者也可以不是物理单元，即可以位于一个地方，或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。
另外，在本申请各个实施例中的各功能单元可以集成在一个处理单元中，也可以是各个单元单独物理存在，也可以两个或两个以上单元集成在一个单元中。
所述功能如果以软件功能单元的形式实现并作为独立的产品销售或使用时，可以存储在一个计算机可读取存储介质中。基于这样的理解，本申请的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质中，包括若干指令用以使得一台计算机设备(可以是个人计算机，服务器，或者网络设备等)执行本申请各个实施例所述方法的全部或部分步骤。而前述的存储介质包括：U盘、移动硬盘、只读存储器(read-only memory，ROM)、随机存取存储器(random access memory，RAM)、磁碟或者光盘等各种可以存储程序代码的介质。
以上所述，仅为本申请的具体实施方式，但本申请的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本申请揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本申请的保护范围之内。因此，本申请的保护范围应以所述权利要求的保护范围为准。

Claims (19)

  1. 一种随机接入的方法，其特征在于，包括：
    终端设备确定第一特征对应的第一随机接入优先级和第二特征对应的第二随机接入优先级，所述第一特征和所述第二特征为业务对应的特征；
    所述终端设备参考所述第一随机接入优先级和所述第二随机接入优先级的排序确定所述终端设备进行随机接入使用的随机接入优先级。
  2. 根据权利要求1所述的方法，其特征在于，所述第一特征或所述第二特征包括以下任一项：
    网络切片、小数据传输、覆盖增强、能力受限、多媒体优先级业务、或关键任务业务。
  3. 根据权利要求1或2所述的方法，其特征在于，所述方法还包括：
    所述终端设备接收来自网络设备的第一指示信息，所述第一指示信息指示所述第一随机接入优先级和/或所述第二随机接入优先级的排序。
  4. 根据权利要求1或2所述的方法，其特征在于，所述方法还包括：
    所述终端设备接收来自网络设备的第二指示信息，所述第二指示信息指示所述终端设备使用所述第一特征对应的随机接入优先级；
    所述终端设备参考所述第一随机接入优先级和所述第二随机接入优先级的排序确定所述终端设备进行随机接入使用的随机接入优先级，包括：
    所述终端设备参考所述第二指示信息确定所述终端设备进行随机接入使用的随机接入优先级。
  5. 根据权利要求1或2所述的方法，其特征在于，所述第一随机接入优先级和/或所述第二随机接入优先级的排序是所述终端设备基于第一信息确定的，所述第一信息包括以下至少一项：所述业务的时延需求信息，或所述终端设备的能力信息。
  6. 根据权利要求1至5中任一项所述的方法，其特征在于，所述方法还包括：
    所述终端设备接收来自网络设备的第一对应关系和第二对应关系，所述第一对应关系包括随机接入信道分区和特征的对应关系，所述第二对应关系包括随机接入信道分区和随机接入优先级的对应关系；
    所述终端设备确定第一特征对应的第一随机接入优先级和第二特征对应的第二随机接入优先级，包括：
    所述终端设备参考所述第一对应关系，以及所述第二对应关系确定所述第一特征对应的第一随机接入优先级和所述第二特征对应的第二随机接入优先级。
  7. 根据权利要求6所述的方法，其特征在于，所述方法还包括：
    所述终端设备接收来自所述网络设备的标识信息，所述标识信息指示随机接入信道分区对应的随机接入优先级适用的特征；
    所述终端设备参考所述第一对应关系，以及所述第二对应关系确定所述第一特征对应的第一随机接入优先级和所述第二特征对应的第二随机接入优先级，包括：
    所述终端设备参考所述第一对应关系，所述第二对应关系，以及所述标识信息确定所述第一特征对应的第一随机接入优先级和所述第二特征对应的第二随机接入优先级。
  8. 一种通信装置，其特征在于，包括：
    处理单元，用于确定第一特征对应的第一随机接入优先级和第二特征对应的第二随机接入优先级，所述第一特征和所述第二特征为业务对应的特征；
    所述处理单元，还用于参考所述第一随机接入优先级和所述第二随机接入优先级的排序确定所述装置进行随机接入使用的第一随机接入优先级。
  9. 根据权利要求8所述的装置，其特征在于，所述第一特征或所述第二特征包括以下任一项：
    网络切片、小数据传输、覆盖增强、能力受限、多媒体优先级业务、或关键任务业务。
  10. 根据权利要求8或9所述的装置，其特征在于，所述装置还包括：
    收发单元，用于接收来自网络设备的第一指示信息，所述第一指示信息指示所述第一随机接入优先级和/或所述第二随机接入优先级的排序。
  11. 根据权利要求8或9所述的装置，其特征在于，所述装置还包括：
    收发单元，用于接收来自网络设备的第二指示信息，所述第二指示信息指示终端设备使用所述第一特征对应的随机接入优先级；
    所述处理单元，还用于参考所述第二指示信息确定所述装置进行随机接入使用的随机接入优先级。
  12. 根据权利要求8或9所述的装置，其特征在于，所述第一随机接入优先级和/或所述第二随机接入优先级的排序是所述装置基于第一信息确定的，所述第一信息包括以下至少一项：所述业务的时延需求信息，或终端设备的能力信息。
  13. 根据权利要求8至12中任一项所述的装置，其特征在于，
    所述收发单元，还用于接收来自网络设备的第一对应关系和第二对应关系，所述第一对应关系包括随机接入信道分区和特征的对应关系，所述第二对应关系包括随机接入信道分区和随机接入优先级的对应关系；
    所述处理单元，还用于参考所述第一对应关系，以及所述第二对应关系确定所述第一特征对应的第一随机接入优先级和所述第二特征对应的第二随机接入优先级。
  14. 根据权利要求13所述的装置，其特征在于，
    所述收发单元，还用于接收来自所述网络设备的标识信息，所述标识信息指示随机接入信道分区对应的随机接入优先级适用的特征；
    所述处理单元，还用于参考所述第一对应关系，所述第二对应关系，以及所述标识信息确定所述第一特征对应的第一随机接入优先级和所述第二特征对应的第二随机接入优先级。
  15. 一种通信装置，其特征在于，包括至少一个处理器，所述至少一个处理器用于执行存储器中存储的计算机程序，以使得所述装置执行如权利要求1至7中任一项所述的方法。
  16. 根据权利要求15所述的装置，其特征在于，所述装置还包括所述存储器和/或通信接口，所述通信接口与所述处理器耦合，所述通信接口用于输入和/或输出信息。
  17. 一种通信装置，其特征在于，包括逻辑电路，所述逻辑电路用于与输入/输出接口耦合，通过所述输入/输出接口传输数据，以执行如权利要求1至7中任一项所述的方法。
  18. 一种计算机可读存储介质，其特征在于，包括计算机程序，当所述计算机程序在 计算机上运行时，使得所述计算机执行如权利要求1至7中任一项所述的方法。
  19. 一种计算机程序产品，其特征在于，所述计算机程序产品中包括计算机程序代码，其特征在于：当所述计算机程序代码在计算机上运行时，使得计算机实现上述权利要求1至7中任一项所述的方法。
PCT/CN2023/070313 2022-01-07 2023-01-04 随机接入的方法和通信装置 WO2023131156A1 (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202210018184.9A CN116456502A (zh) 2022-01-07 2022-01-07 随机接入的方法和通信装置
CN202210018184.9 2022-01-07

Publications (1)

Publication Number Publication Date
WO2023131156A1 true WO2023131156A1 (zh) 2023-07-13

Family

ID=87073159

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2023/070313 WO2023131156A1 (zh) 2022-01-07 2023-01-04 随机接入的方法和通信装置

Country Status (2)

Country Link
CN (1) CN116456502A (zh)
WO (1) WO2023131156A1 (zh)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110719647A (zh) * 2018-07-13 2020-01-21 维沃移动通信有限公司 一种随机接入方法、终端及网络设备
CN110913439A (zh) * 2018-09-17 2020-03-24 华为技术有限公司 一种网元选择方法及装置
CN111758294A (zh) * 2018-06-14 2020-10-09 Oppo广东移动通信有限公司 一种随机接入方法及装置、通信设备
CN112449378A (zh) * 2019-09-05 2021-03-05 华为技术有限公司 一种通信方法及装置
CN112672383A (zh) * 2017-11-09 2021-04-16 华为技术有限公司 通信方法和网络设备
WO2021087929A1 (zh) * 2019-11-07 2021-05-14 华为技术有限公司 一种随机接入的方法和装置
WO2022000509A1 (zh) * 2020-07-03 2022-01-06 Oppo广东移动通信有限公司 无线通信方法、终端设备和网络设备

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112672383A (zh) * 2017-11-09 2021-04-16 华为技术有限公司 通信方法和网络设备
CN111758294A (zh) * 2018-06-14 2020-10-09 Oppo广东移动通信有限公司 一种随机接入方法及装置、通信设备
CN110719647A (zh) * 2018-07-13 2020-01-21 维沃移动通信有限公司 一种随机接入方法、终端及网络设备
CN110913439A (zh) * 2018-09-17 2020-03-24 华为技术有限公司 一种网元选择方法及装置
CN112449378A (zh) * 2019-09-05 2021-03-05 华为技术有限公司 一种通信方法及装置
WO2021087929A1 (zh) * 2019-11-07 2021-05-14 华为技术有限公司 一种随机接入的方法和装置
WO2022000509A1 (zh) * 2020-07-03 2022-01-06 Oppo广东移动通信有限公司 无线通信方法、终端设备和网络设备

Also Published As

Publication number Publication date
CN116456502A (zh) 2023-07-18

Similar Documents

Publication Publication Date Title
US20210212104A1 (en) Methods and apparatuses for transmitting and configuring sidelink data
JP6856300B2 (ja) ランダムアクセス方法、ネットワークデバイス、及びユーザ機器
US20200296687A1 (en) Communication method and communications device
WO2019214424A1 (zh) 通信方法和通信装置
WO2019029333A1 (zh) 一种资源调度方法及装置
WO2020087524A1 (zh) 非授权频段上ssb的传输方法和设备
WO2021057564A1 (zh) 信道状态信息的优先级发送、确定方法及装置、存储介质、用户设备
US20210360517A1 (en) Method and Apparatus for Obtaining System Information
WO2023061255A1 (zh) 一种通信方法
WO2019075691A1 (zh) 一种受限ue能力的控制方法及装置、计算机存储介质
CN116671184A (zh) 一种用于小区选择或重选的方法、终端设备和网络设备
WO2020258051A1 (zh) 小区接入的方法和设备
WO2022048344A1 (zh) 一种通信方法及设备
WO2023131156A1 (zh) 随机接入的方法和通信装置
WO2022126641A1 (zh) 无线通信方法、终端设备、第一接入网设备以及网元
WO2022027672A1 (zh) 通信方法和通信装置
WO2021035499A1 (zh) 通信方法、设备和通信系统
WO2021022423A1 (zh) 一种传输数据的方法和装置
WO2023066347A1 (zh) 用于随机接入的方法和装置
WO2022150990A1 (zh) 一种无线通信的方法及装置、通信设备
WO2023030443A1 (zh) 无线通信方法和通信装置
WO2023044716A1 (zh) 信道接入方法、设备及存储介质
WO2023131319A1 (zh) 定时提前确定方法及相关装置
WO2022237597A1 (zh) 通信方法和通信装置
WO2023197847A1 (zh) 通信方法和装置

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 23737020

Country of ref document: EP

Kind code of ref document: A1