WO2024020902A1 - 一种随机接入控制方法及装置 - Google Patents

一种随机接入控制方法及装置 Download PDF

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Publication number
WO2024020902A1
WO2024020902A1 PCT/CN2022/108412 CN2022108412W WO2024020902A1 WO 2024020902 A1 WO2024020902 A1 WO 2024020902A1 CN 2022108412 W CN2022108412 W CN 2022108412W WO 2024020902 A1 WO2024020902 A1 WO 2024020902A1
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Prior art keywords
cell
cell group
random access
configuration
terminal device
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PCT/CN2022/108412
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English (en)
French (fr)
Inventor
吴昱民
熊艺
Original Assignee
北京小米移动软件有限公司
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Application filed by 北京小米移动软件有限公司 filed Critical 北京小米移动软件有限公司
Priority to CN202280002482.7A priority Critical patent/CN117796029A/zh
Priority to PCT/CN2022/108412 priority patent/WO2024020902A1/zh
Publication of WO2024020902A1 publication Critical patent/WO2024020902A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements

Definitions

  • the present application relates to the field of communication technology, and in particular, to a random access control method and device.
  • the terminal device can initiate a random access process according to the configured trigger event.
  • the terminal changes the configuration of the candidate cell or cell group corresponding to the serving cell or cell group, how the terminal initiates the random access process (and whether to initiate the random access process) is a problem that needs to be solved.
  • the embodiments of this application provide a random access control method and device, which can be applied to long term evolution (LTE) systems, fifth generation (5th generation, 5G) mobile communication systems, and 5G new radio (NR) ) system, or other future new mobile communication systems and other communication systems, by determining the side link preparation time, it is possible to avoid sending PSSCH before PSSCH data is ready, thus conducive to saving resources and avoiding resource waste.
  • LTE long term evolution
  • 5th generation, 5G mobile communication systems fifth generation
  • NR new radio
  • embodiments of the present application provide a random access control method, which is executed by a terminal device.
  • the method includes:
  • determining that the candidate cell or cell group configuration currently used by the terminal device has changed includes at least one of the following:
  • initiating random access in the cell or cell group corresponding to the activated target cell or cell group includes:
  • the activated target cell or cell group has no available uplink timing TA;
  • the activated target cell or cell group has no available uplink timing TA, and the indication information from the network side device is received;
  • a connection failure occurs in the activated target cell or cell group or a connection failure occurs in a special cell or cell group.
  • the indication information includes random access resource indication information.
  • the random access resource indication information includes at least one of the following:
  • the beam ID corresponding to the random access resource is the beam ID corresponding to the random access resource.
  • embodiments of the present application provide another random access control method, which is executed by a network side device.
  • the method includes:
  • the terminal can initiate random access through the configuration and preset conditions of the network side device to meet the preset communication scenario requirements, thereby saving communication resources and avoiding resource waste.
  • changing the candidate cell or cell group configuration currently used by the terminal equipment includes:
  • the method also includes:
  • the indication information includes random access resource indication information.
  • the random access resource indication information includes at least one of the following:
  • the beam ID corresponding to the random access resource is the beam ID corresponding to the random access resource.
  • embodiments of the present application provide a communication device that has some or all of the functions of the terminal device in implementing the method described in the first aspect.
  • the functions of the communication device may have some or all of the functions in this application.
  • the functions in the embodiments may also be used to independently implement any of the embodiments in this application.
  • the functions described can be implemented by hardware, or can be implemented by hardware executing corresponding software.
  • the hardware or software includes one or more units or modules corresponding to the above functions.
  • the structure of the communication device may include a transceiver module and a processing module, and the processing module is configured to support the communication device to perform corresponding functions in the above method.
  • the transceiver module is used to support communication between the communication device and other devices.
  • the communication device may further include a storage module coupled to the transceiver module and the processing module, which stores necessary computer programs and data for the communication device.
  • the processing module can be a processor
  • the transceiver module can be a transceiver or a communication interface
  • the storage module can be a memory.
  • the communication device includes:
  • a change determination module used to determine that the configuration of the candidate cell or cell group currently used by the terminal equipment has changed
  • a configuration determination module configured to determine an activated target cell or cell group according to the candidate cell or cell group configuration after the change
  • a random access module is configured to initiate random access in the cell or cell group corresponding to the activated target cell or cell group.
  • embodiments of the present application provide another communication device that has part or all of the functions of the network side device in the method example described in the second aspect.
  • the functions of the communication device may include the functions of the communication device in the present application.
  • the functions in some or all of the embodiments may also be used to independently implement any of the embodiments in this application.
  • the functions described can be implemented by hardware, or can be implemented by hardware executing corresponding software.
  • the hardware or software includes one or more units or modules corresponding to the above functions.
  • the structure of the communication device may include a transceiver module and a processing module, and the processing module is configured to support the communication device to perform corresponding functions in the above method.
  • the transceiver module is used to support communication between the communication device and other devices.
  • the communication device may further include a storage module coupled to the transceiver module and the processing module, which stores necessary computer programs and data for the communication device.
  • the processing module may be a processor
  • the transceiver module may be a transceiver or a communication interface
  • the storage module may be a memory.
  • the communication device includes:
  • a configuration module used to configure candidate cells or cell group configurations for terminal equipment
  • the random access control module is used to change the configuration of the candidate cell or cell group currently used by the terminal equipment, and provide the activated target cell or cell group, so that the terminal equipment can be configured in the corresponding activated target cell or cell group.
  • the cell or cell group initiates random access.
  • inventions of the present application provide a communication device.
  • the communication device includes a processor.
  • the processor calls a computer program in a memory, it executes the method described in the first aspect.
  • inventions of the present application provide a communication device.
  • the communication device includes a processor.
  • the processor calls a computer program in a memory, it executes the method described in the second aspect.
  • inventions of the present application provide a communication device.
  • the communication device includes a processor and a memory, and a computer program is stored in the memory; the processor executes the computer program stored in the memory, so that the communication device executes The method described in the first aspect above.
  • inventions of the present application provide a communication device.
  • the communication device includes a processor and a memory, and a computer program is stored in the memory; the processor executes the computer program stored in the memory, so that the communication device executes The method described in the second aspect above.
  • inventions of the present application provide a communication device.
  • the device includes a processor and an interface circuit.
  • the interface circuit is used to receive code instructions and transmit them to the processor.
  • the processor is used to run the code instructions to cause the The device performs the method described in the first aspect.
  • inventions of the present application provide a communication device.
  • the device includes a processor and an interface circuit.
  • the interface circuit is used to receive code instructions and transmit them to the processor.
  • the processor is used to run the code instructions to cause the The device performs the method described in the second aspect above.
  • embodiments of the present application provide a random access control system, which includes the communication device described in the third aspect and the communication device described in the fourth aspect, or the system includes the communication device described in the fifth aspect.
  • the communication device according to the tenth aspect includes the communication device described in the third aspect and the communication device described in the fourth aspect, or the system includes the communication device described in the fifth aspect.
  • the communication device and the communication device according to the sixth aspect, or the system includes the communication device according to the seventh aspect and the communication device according to the eighth aspect, or the system includes the communication device according to the ninth aspect and the communication device according to the ninth aspect.
  • embodiments of the present invention provide a computer-readable storage medium for storing instructions used by the above-mentioned terminal equipment. When the instructions are executed, the terminal equipment is caused to execute the above-mentioned first aspect. method.
  • embodiments of the present invention provide a readable storage medium for storing instructions used by the above-mentioned network-side device. When the instructions are executed, the network-side device is caused to execute the above-mentioned second aspect. Methods.
  • the present application also provides a computer program product including a computer program, which when run on a computer causes the computer to execute the method described in the first aspect.
  • the present application also provides a computer program product including a computer program, which when run on a computer causes the computer to execute the method described in the second aspect.
  • the present application provides a chip system, which includes at least one processor and an interface for supporting the terminal device to implement the functions involved in the first aspect, for example, determining or processing the data involved in the above method. and information.
  • the chip system further includes a memory, and the memory is used to store necessary computer programs and data for the terminal device.
  • the chip system may be composed of chips, or may include chips and other discrete devices.
  • the present application provides a chip system, which includes at least one processor and an interface for supporting the network side device to implement the functions involved in the second aspect, for example, determining or processing the functions involved in the above method. At least one of data and information.
  • the chip system further includes a memory, and the memory is used to store necessary computer programs and data for the network side device.
  • the chip system may be composed of chips, or may include chips and other discrete devices.
  • the present application provides a computer program that, when run on a computer, causes the computer to execute the method described in the first aspect.
  • this application provides a computer program that, when run on a computer, causes the computer to execute the method described in the second aspect.
  • Figure 1 is a schematic architectural diagram of a communication system provided by an embodiment of the present application.
  • Figure 2 is a schematic flow chart of a random access control method provided by an embodiment of the present application.
  • Figure 3 is a schematic flowchart of a random access control method provided by an embodiment of the present application.
  • Figure 4 is a schematic structural diagram of a communication device provided by an embodiment of the present application.
  • Figure 5 is a schematic structural diagram of another communication device provided by an embodiment of the present application.
  • FIG. 6 is a schematic structural diagram of a chip provided by an embodiment of the present application.
  • DCI Downlink control information
  • DCI is carried by the physical downlink control channel (PDCCH).
  • DCI can include uplink and downlink resource allocation, hybrid automatic repeat request (HARQ) information, power control, etc.
  • PDCCH is a physical channel used to carry downlink scheduling information.
  • the media access control layer control element MAC CE is a way to exchange control information between the terminal and the network. As the name suggests, it exchanges control information about the MAC layer.
  • Figure 1 is a schematic architectural diagram of a communication system provided by an embodiment of the present application.
  • the communication system may include but is not limited to one network side device and one terminal device.
  • the number and form of devices shown in Figure 1 are only for examples and do not constitute a limitation on the embodiments of the present application. In actual applications, two or more devices may be included.
  • the communication system shown in Figure 1 includes a network side device 101 and a terminal device 102 as an example.
  • LTE long term evolution
  • 5th generation 5th generation
  • NR 5th generation new radio
  • side link in the embodiment of the present application may also be called a side link or a through link.
  • the network side device 101 in the embodiment of this application is an entity on the network side that is used to transmit or receive signals.
  • the network side device 101 can be an evolved base station (evolved NodeB, eNB), a transmission point (transmission reception point, TRP), a next generation base station (next generation NodeB, gNB) in an NR system, or other future mobile communication systems.
  • eNB evolved base station
  • TRP transmission reception point
  • gNB next generation base station
  • WiFi wireless fidelity
  • the embodiments of this application do not limit the specific technology and specific equipment form used by the network side equipment.
  • the network-side equipment may be composed of a centralized unit (central unit, CU) and a distributed unit (DU), where the CU may also be called a control unit (control unit), using CU-
  • the structure of DU can separate the protocol layers of network-side equipment, such as base stations, with some protocol layer functions placed under centralized control by the CU, while the remaining part or all protocol layer functions are distributed in the DU, and the CU centrally controls the DU.
  • the terminal device 102 in the embodiment of this application is an entity on the user side that is used to receive or transmit signals, such as a mobile phone.
  • Terminal equipment can also be called terminal equipment (terminal), user equipment (user equipment, UE), mobile station (mobile station, MS), mobile terminal equipment (mobile terminal, MT), etc.
  • the terminal device can be a car with communication functions, a smart car, a mobile phone, a wearable device, a tablet computer (Pad), a computer with wireless transceiver functions, a virtual reality (VR) terminal device, an augmented reality (augmented reality (AR) terminal equipment, wireless terminal equipment in industrial control, wireless terminal equipment in self-driving, wireless terminal equipment in remote medical surgery, smart grid ( Wireless terminal equipment in smart grid, wireless terminal equipment in transportation safety, wireless terminal equipment in smart city, wireless terminal equipment in smart home, etc.
  • the embodiments of this application do not limit the specific technology and specific equipment form used by the terminal equipment.
  • MCG Master Cell Group
  • MN Master Node
  • Secondary cell (or cell group) group corresponds to the secondary node (Secondary Node, SN) on the network side.
  • the MCG includes one primary cell (or cell group) (Primary Cell, PCell) and one or more secondary cells (or cell group) (Secondary Cell, SCell).
  • SCG includes 1 primary and auxiliary cell (or cell group) (Primary Secondary Cell, PSCell) and 1 or more SCell.
  • PCell and PSCell can be collectively referred to as a special cell (or cell group) (Special Cell, SpCell).
  • the network side device can provide multiple candidate cells or cell groups to the terminal device.
  • the network side device can subsequently control the terminal device to make changes in multiple "candidate cells or cell groups" through L1 (such as DCI) or L2 (such as MAC CE) signaling (for example, changing the working cell (or cell group) from “candidate cells” to “candidate cells”).
  • L1 such as DCI
  • L2 such as MAC CE
  • one serving cell can correspond to one or more “candidate cells (or cell groups)".
  • the terminal device can obtain the "preconfigured condition” and the “preconfigured cell (or cell group)" corresponding to the condition from the network side device.
  • the terminal device meets the “preconfigured conditions” (eg, a specific measurement event)
  • the terminal changes the serving cell (or cell group) to the "preconfigured cell (or cell group)".
  • the random access process refers to the process from when the user attempts to access the network by sending a random access preamble to when a basic signaling connection is established with the network. Random access is a very critical step in the mobile communication system, and it is also the last step in establishing a communication link between the terminal device and the network side device.
  • the terminal equipment interacts with the base station through random access and completes subsequent operations: such as calls, resource requests, data transmission, etc. At the same time, the terminal equipment achieves uplink time synchronization with the system through random access. The performance of random access directly affects the user experience.
  • the terminal device meets the "preconfigured conditions" (such as a specific measurement event) and the terminal changes the serving cell (or cell group) to the "preconfigured cell (or cell group)", there is still a lack of usefulness.
  • Figure 2 is a schematic flow chart of a random access control method provided by an embodiment of the present application. The method is executed by the terminal device, as shown in Figure 2. The method may include but is not limited to the following steps:
  • Step 201 Determine that the configuration of the candidate cell or cell group currently used by the terminal device has changed
  • the communication system adopts a dual connectivity (Dual Connectivity, DC) architecture.
  • DC Dual Connectivity
  • MCG Master Cell Group
  • SCG Secondary Cell Group
  • MCG master Cell Group
  • PCell secondary Cell Group
  • CA Carrier Aggregation
  • SSCell Primary Secondary Cell
  • the PSCell is the cell that initiates initial access under SCG.
  • PSCell under SCG and SCell under SCG are also united through CA.
  • a cell refers to an area covered by a base station or a part of a base station in a communication system. In this area, terminal-side equipment can reliably communicate with the base station through wireless channels.
  • the network side device configures a corresponding candidate cell or candidate cell group for the terminal device through a configuration message.
  • each cell (or cell group) will be assigned a serving cell (or cell group) configuration (eg, ServingCellConfig).
  • the serving cell (or cell group) configuration will be associated with a serving cell (or cell group) identifier (eg, ServCellIndex), which is used to uniquely identify a serving cell (or cell group) within the terminal device.
  • the serving cell (or cell group) identifier of PCell is "0".
  • a serving cell (or cell group) is associated with a Hybrid Automatic Repeat Request (HARQ) entity, which includes multiple HARQ processes.
  • HARQ Hybrid Automatic Repeat Request
  • Step 202 Determine an activated target cell or cell group according to the modified candidate cell or cell group configuration.
  • the candidate cell or cell group configuration after the change includes a target cell or cell group.
  • an activation operation needs to be performed on it so that the target cell or cell group The cell or cell group enters the active state.
  • Step 203 Initiate random access in the cell or cell group corresponding to the activated target cell or cell group.
  • the terminal device after the terminal device determines the activated target cell or cell group, it can initiate random access in the cell or cell group corresponding to the activated target cell or cell group, so that the terminal device can initiate random access to the target cell or cell group corresponding to the target cell or cell group.
  • Cells or cell groups establish wireless links for data interoperability. Apply for uplink resources or perform uplink synchronization from the cell or cell group corresponding to the activated target cell or cell group.
  • determining that the candidate cell or cell group configuration currently used by the terminal device has changed includes at least one of the following:
  • the terminal device can directly change the currently used candidate cell or cell group configuration according to the change instruction information sent by the network side device.
  • the terminal device can also determine the currently used candidate cell or cell group based on the preconfiguration conditions provided by the network side device and the "preconfigured cells (or cell groups)" corresponding to the preconfiguration conditions.
  • the configuration has changed.
  • the terminal meets the preconfigured conditions (eg, a specific measurement event)
  • the terminal changes the serving cell (or cell group) to the "preconfigured cell (or cell group)".
  • the condition-triggered mobility process includes at least one of the following:
  • Conditional handover is a handover performed by the terminal device when one or more handover execution conditions are met;
  • Conditional primary and secondary cell (or cell group) addition (Conditional PSCell Addition, CPA), that is, adding a new primary and secondary cell (or cell group) when one or more handover execution conditions are met;
  • CPC Conditional PSCell Change
  • This application proposes a random access control method, which includes:
  • the corresponding candidate cell or cell group is determined according to the configuration of one or more candidate cells or cell groups provided by the network side device.
  • This application proposes a random access control method, which includes:
  • the terminal device will be configured with one or more candidate cells or cell groups when running.
  • the terminal device determines that the configuration of the currently used candidate cell or cell group has changed, it means that the serving cell needs to be changed to the network-side device preset configuration.
  • the configured cell is the target cell or cell group.
  • the terminal device determines the corresponding candidate cell or cell group according to the configuration of one or more candidate cells or cell groups provided by the network side device.
  • This application proposes a random access control method, which includes:
  • Random access is initiated in the cell or cell group corresponding to the activated target cell or cell group.
  • the terminal device initiates random access with the cell or cell group corresponding to the activated target cell or cell group, to establish a wireless link with the cell or cell group corresponding to the target cell or cell group, and perform data transmission. Interoperability. Apply for uplink resources or perform uplink synchronization from the cell or cell group corresponding to the activated target cell or cell group.
  • This application proposes a random access control method, which includes:
  • the network side device pre-configures preset conditions for the terminal device according to the usage scenario. If the preset conditions are met, it means that the terminal device meets the requirements of the cell or cell group corresponding to the changed target cell or cell group.
  • the conditions for random access require that random access be initiated in the cell or cell group corresponding to the activated target cell or cell group to establish a communication link and meet the needs of a specific communication scenario.
  • the activated target cell or cell group has no available uplink timing TA.
  • the triggering events of the random access process include:
  • Uplink data arrives when there are no physical uplink control channel (PUCCH) resources for sending scheduling requests (Scheduling Request, SR);
  • PUCCH physical uplink control channel
  • Synchronous reconfiguration of RRC requests (e.g. handover);
  • SI SystemInformation
  • RRC_INACTIVE initiates the Small Data Transmission (SDT) process
  • the preset conditions are set according to the above triggering events of the random access process, so that the terminal device satisfies the preset conditions and initiates the random access process in the scenario where the above triggering events are satisfied.
  • the terminal device After receiving the downlink signal, the terminal device can determine the location of the downlink signal subframe. In order to avoid uplink interference, network side equipment must ensure that signals sent by different terminal devices arrive at a fixed time. Therefore, the network side needs to configure an uplink timing advance for the terminal's uplink transmission, that is, uplink timing (Timing Advance, TA). After the terminal device receives the TA value, if the terminal device wants to send an uplink signal, the terminal device uses the downlink subframe position as a reference and advances the TA time value to send the uplink signal.
  • uplink timing Timing Advance
  • the terminal device only needs to obtain the TA value when it is in the uplink out-of-synchronization state. Therefore, the terminal device can trigger it itself or the network side device can trigger the terminal to initiate a random access process.
  • the random access request message of the random access process is sent to the physical random access channel.
  • a timer (timeAlignmentTimer) can be set for the TA value of the terminal.
  • the timer is started when the TA command is issued to the terminal device.
  • the network side device issues a new TA value before the timer times out. to the terminal.
  • the maintenance of the TA value of the terminal device it starts or restarts when receiving the TA value according to the timer set by the network side device. After the timer expires, the TA value is considered invalid, and the terminal's behavior is out of sync and can no longer be used. Cells that are out of sync in the uplink send uplink signals.
  • TAG TA Group
  • the TAG composed of the cells with the same TA as the SpCell is the primary timing advance group (PTAG)
  • STAG the TAG composed of the cells with the same TA as the SCell
  • the terminal device may determine that the preset condition is met.
  • Instruction information from the network side device is received, wherein the instruction information instructs the terminal device to initiate random access in the cell or cell group corresponding to the activated target cell or cell group.
  • the terminal device receives the instruction information from the network side device, and the instruction information instructs the terminal device to initiate random access in the cell or cell group corresponding to the activated target cell or cell group, , it can be determined that the preset condition is met and the terminal device needs to initiate random access in the cell or cell group corresponding to the activated target cell or cell group.
  • the activated target cell or cell group has no available uplink timing TA, and indication information from the network side device is received.
  • a connection failure occurs in the activated target cell or cell group, or a connection failure occurs in a special cell or cell group.
  • the connection failure of the terminal device includes the following types: handover failure (for example, the handover is not completed within the specified time (for example, timer t304 times out)); SCG change failure (for example, access within the specified time)
  • the new SCG Secondary Cell Group, auxiliary cell group
  • the cell change fails (for example, the cell change is not completed within the specified time); the cell activation fails (for example, within the specified time) Cell activation was not completed); the wireless link failed (i.e., RLF (Radio Link Failure)).
  • the "wireless link failure” includes at least one of the following: physical layer out of synchronization (for example, timer t310 times out); random access failure at the MAC layer (for example, the maximum number of random access attempts is reached); wireless link The control sublayer (Radio Link Control, RLC) reaches the maximum number of retransmissions indication (for example, the maximum number of retransmissions in the RLC layer is reached).
  • RLC Radio Link Control
  • connection failure can be limited to candidate cells (or cell groups) for SpCell.
  • the indication information includes random access resource indication information.
  • the indication information includes random access resource indication information, which is used to indicate channel resources used in the random access process to the terminal device.
  • the indication information is carried by MACCE or DCI and sent to the terminal device.
  • the random access resource indication information includes at least one of the following:
  • the beam ID corresponding to the random access resource is the beam ID corresponding to the random access resource.
  • the terminal device transmits to the optimal beam of gNB in the random access resource preamble identifier (such as preamble index); the time-frequency resource identifier of random access (such as PRACH resource index); the random access resource corresponding
  • the beam identification includes at least one of the following:
  • CSI-RS Channel State Information Reference Signal
  • the terminal can initiate random access through the configuration and preset conditions of the network side device to meet the preset communication scenario requirements, thereby saving communication resources and avoiding resource waste.
  • Figure 3 is a schematic flowchart of a random access control method provided by an embodiment of the present application. The method is executed by the terminal device, as shown in Figure 3. The method may include but is not limited to at least one of the following steps:
  • Step 301 Configure candidate cells or cell group configurations for terminal equipment
  • the network side device configures the corresponding candidate cell or cell group configuration for the terminal device in advance, so as to configure the corresponding candidate cell or cell group for the network side device.
  • the candidate cell (or cell group) configuration provided through the RRCReconfiguration message.
  • Each cell (or cell group) will be assigned a serving cell (or cell group) configuration (eg, ServingCellConfig).
  • the serving cell (or cell group) configuration will be associated with a serving cell (or cell group) identifier (eg, ServCellIndex), which is used to uniquely identify a serving cell (or cell group) within the terminal device.
  • the serving cell (or cell group) identifier of PCell is "0".
  • a serving cell (or cell group) is associated with a Hybrid Automatic Repeat Request (HARQ) entity, which includes multiple HARQ processes.
  • HARQ Hybrid Automatic Repeat Request
  • the terminal device determines that the configuration of the candidate cell or cell group currently used by the terminal device has changed, it means that the serving cell needs to be changed to the cell (or cell group) preconfigured by the network side device, that is, the target cell or cell group.
  • Step 302 Change the configuration of the candidate cell or cell group currently used by the terminal device, and provide an activated target cell or cell group, so that the terminal device initiates the operation in the cell or cell group corresponding to the activated target cell or cell group. Random access.
  • the network side device can change the configuration of the candidate cell or cell group currently used by the terminal device through configuration instructions, and provide an activated target cell or cell group.
  • the terminal equipment is caused to initiate a random access process in the activated target cell or cell group, and establishes a communication link with the activated target cell or cell group.
  • the terminal can initiate random access through the configuration and preset conditions of the network side device to meet the preset communication scenario requirements, thereby saving communication resources and avoiding resource waste.
  • This application proposes a random access control method, which includes:
  • the network side device can change the configuration of the candidate cell or cell group currently used by the terminal device through configuration instructions, and provide an activated target cell or cell group.
  • the terminal equipment is allowed to determine whether it is necessary to initiate a random access process to the activated target cell or cell group according to the preset conditions. If the preset conditions are met, the terminal device can initiate a random access process in the activated target cell or cell group, and establish a communication link with the activated target cell or cell group.
  • changing the candidate cell or cell group configuration currently used by the terminal equipment includes:
  • the network side device sends change instruction information to the terminal device, so that the terminal device changes the currently used candidate cell or cell group configuration.
  • the PCell configuration of the terminal is changed from candidate cell (or cell group) configuration-1 to candidate cell (or cell group) configuration-2).
  • the change indication information is carried by MACCE or DCI.
  • the method also includes:
  • the indication information includes random access resource indication information.
  • the indication information sent by the network side device includes random access resource indication information, which is used to indicate the channel resources used in the random access process to the terminal device.
  • the random access resource indication information includes at least one of the following:
  • the beam ID corresponding to the random access resource is the beam ID corresponding to the random access resource.
  • the terminal device transmits to the optimal beam of gNB in the random access resource preamble identifier (such as preamble index); the time-frequency resource identifier of random access (such as PRACH resource index); random access
  • the beam identifier corresponding to the resource includes at least one of the following:
  • the terminal can initiate random access through the configuration and preset conditions of the network side device to meet the preset communication scenario requirements, thereby saving communication resources and avoiding resource waste.
  • the methods provided by the embodiments of the present application are introduced from the perspectives of network side equipment and terminal equipment.
  • the network side device and the terminal device may include a hardware structure and a software module to implement the above functions in the form of a hardware structure, a software module, or a hardware structure plus a software module.
  • a certain function among the above functions can be executed by a hardware structure, a software module, or a hardware structure plus a software module.
  • FIG. 4 is a schematic structural diagram of a communication device 40 provided by an embodiment of the present application.
  • the communication device 40 shown in FIG. 4 may include a transceiver module 401 and a processing module 402.
  • the transceiving module 401 may include a sending module and/or a receiving module.
  • the sending module is used to implement the sending function
  • the receiving module is used to implement the receiving function.
  • the transceiving module 401 may implement the sending function and/or the receiving function.
  • the communication device 40 may be a terminal device (such as the terminal device in the foregoing method embodiment), a device in the terminal device, or a device that can be used in conjunction with the terminal device.
  • the communication device 40 may be a network-side device, a device in the network-side device, or a device that can be used in conjunction with the network-side device.
  • the communication device 40 is a terminal device (such as the terminal device in the aforementioned method embodiment):
  • a change determination module used to determine that the configuration of the candidate cell or cell group currently used by the terminal equipment has changed
  • a configuration determination module configured to determine an activated target cell or cell group according to the candidate cell or cell group configuration after the change
  • a random access module is configured to initiate random access in the cell or cell group corresponding to the activated target cell or cell group.
  • the communication device 40 is a network side device:
  • a configuration module used to configure candidate cells or cell group configurations for terminal equipment
  • the random access control module is used to change the configuration of the candidate cell or cell group currently used by the terminal equipment, and provide the activated target cell or cell group, so that the terminal equipment can be configured in the corresponding activated target cell or cell group.
  • the cell or cell group initiates random access.
  • FIG. 5 is a schematic structural diagram of another communication device 50 provided by an embodiment of the present application.
  • the communication device 50 may be a network-side device, a terminal device (such as the terminal device in the foregoing method embodiment), or a chip, chip system, or processor that supports the network-side device to implement the above method, or it may be Chips, chip systems, or processors that support terminal equipment implementing the above methods.
  • the device can be used to implement the method described in the above method embodiment. For details, please refer to the description in the above method embodiment.
  • Communication device 50 may include one or more processors 501 .
  • the processor 501 may be a general-purpose processor or a special-purpose processor, or the like. For example, it can be a baseband processor or a central processing unit.
  • the baseband processor can be used to process communication protocols and communication data.
  • the central processor can be used to control communication devices (such as base stations, baseband chips, terminal equipment, terminal equipment chips, DU or CU, etc.) and execute computer programs. , processing data for computer programs.
  • the communication device 50 may also include one or more memories 502, on which a computer program 503 may be stored.
  • the processor 501 executes the computer program 503, so that the communication device 50 performs the steps described in the above method embodiments. method.
  • the memory 502 may also store data.
  • the communication device 50 and the memory 502 can be provided separately or integrated together.
  • the communication device 50 may also include a transceiver 504 and an antenna 505.
  • the transceiver 504 may be called a transceiver unit, a transceiver, a transceiver circuit, etc., and is used to implement transceiver functions.
  • the transceiver 504 may include a receiver and a transmitter.
  • the receiver may be called a receiver or a receiving circuit, etc., used to implement the receiving function;
  • the transmitter may be called a transmitter, a transmitting circuit, etc., used to implement the transmitting function.
  • the communication device 50 may also include one or more interface circuits 506.
  • the interface circuit 506 is used to receive code instructions and transmit them to the processor 501 .
  • the processor 501 executes the code instructions to cause the communication device 50 to perform the method described in the above method embodiment.
  • the communication device 50 is a terminal device (such as the terminal device in the aforementioned method embodiment): the processor 501 is used to execute step 201, step 202 and step 203 in Figure 2.
  • the communication device 50 is a network-side device: the transceiver 504 is used to perform steps 301 and 302 in Figure 3 .
  • the processor 501 may include a transceiver for implementing receiving and transmitting functions.
  • the transceiver may be a transceiver circuit, an interface, or an interface circuit.
  • the transceiver circuits, interfaces or interface circuits used to implement the receiving and transmitting functions can be separate or integrated together.
  • the above-mentioned transceiver circuit, interface or interface circuit can be used for reading and writing codes/data, or the above-mentioned transceiver circuit, interface or interface circuit can be used for signal transmission or transfer.
  • the processor 501 may store a computer program 503, and the computer program 503 runs on the processor 501, causing the communication device 50 to perform the method described in the above method embodiment.
  • the computer program 503 may be solidified in the processor 501, in which case the processor 501 may be implemented by hardware.
  • the communication device 50 may include a circuit, and the circuit may implement the functions of sending or receiving or communicating in the foregoing method embodiments.
  • the processor and transceiver described in this application can be implemented in integrated circuits (ICs), analog ICs, radio frequency integrated circuits RFICs, mixed signal ICs, application specific integrated circuits (ASICs), printed circuit boards ( printed circuit board (PCB), electronic equipment, etc.
  • the processor and transceiver can also be manufactured using various IC process technologies, such as complementary metal oxide semiconductor (CMOS), n-type metal oxide-semiconductor (NMOS), P-type Metal oxide semiconductor (positive channel metal oxide semiconductor, PMOS), bipolar junction transistor (BJT), bipolar CMOS (BiCMOS), silicon germanium (SiGe), gallium arsenide (GaAs), etc.
  • CMOS complementary metal oxide semiconductor
  • NMOS n-type metal oxide-semiconductor
  • PMOS P-type Metal oxide semiconductor
  • BJT bipolar junction transistor
  • BiCMOS bipolar CMOS
  • SiGe silicon germanium
  • GaAs gallium arsenide
  • the communication device described in the above embodiments may be a network side device or a terminal device (such as the terminal device in the foregoing method embodiment), but the scope of the communication device described in this application is not limited thereto, and the structure of the communication device may not be Subject to the limitations of Figure 4.
  • the communication device may be a stand-alone device or may be part of a larger device.
  • the communication device may be:
  • the IC collection may also include storage components for storing data and computer programs;
  • the communication device may be a chip or a chip system
  • the communication device may be a chip or a chip system
  • the chip shown in Figure 6 includes a processor 601 and an interface 602.
  • the number of processors 601 may be one or more, and the number of interfaces 602 may be multiple.
  • the chip also includes a memory 603, which is used to store necessary computer programs and data.
  • Embodiments of the present application also provide a random access control system, which includes a communication device as a terminal device (such as the terminal device in the foregoing method embodiment) in the embodiment of FIG. 4 and a communication device as a network-side device, or , the system includes a communication device as a terminal device (such as the terminal device in the foregoing method embodiment) in the embodiment of FIG. 4 and a communication device as a network-side device.
  • a random access control system which includes a communication device as a terminal device (such as the terminal device in the foregoing method embodiment) in the embodiment of FIG. 4 and a communication device as a network-side device, or , the system includes a communication device as a terminal device (such as the terminal device in the foregoing method embodiment) in the embodiment of FIG. 4 and a communication device as a network-side device.
  • This application also provides a readable storage medium on which instructions are stored. When the instructions are executed by a computer, the functions of any of the above method embodiments are implemented.
  • This application also provides a computer program product, which, when executed by a computer, implements the functions of any of the above method embodiments.
  • the above embodiments it may be implemented in whole or in part by software, hardware, firmware, or any combination thereof.
  • 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 programs.
  • the computer program When the computer program is loaded and executed on a computer, the processes or functions described in the embodiments of the present application are generated in whole or in part.
  • the computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device.
  • the computer program may be stored in or transferred from one computer-readable storage medium to another, for example, the computer program may be transferred from a website, computer, server, or data center Transmission to another website, computer, server or data center through wired (such as coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (such as infrared, wireless, microwave, etc.) means.
  • 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, data center, etc. that contains one or more available media integrated.
  • the available media may be magnetic media (e.g., floppy disks, hard disks, magnetic tapes), optical media (e.g., high-density digital video discs (DVD)), or semiconductor media (e.g., solid state disks, SSD)) etc.
  • magnetic media e.g., floppy disks, hard disks, magnetic tapes
  • optical media e.g., high-density digital video discs (DVD)
  • DVD digital video discs
  • semiconductor media e.g., solid state disks, SSD
  • At least one in this application can also be described as one or more, and the plurality can be two, three, four or more, which is not limited by this application.
  • the technical feature is distinguished by “first”, “second”, “third”, “A”, “B”, “C” and “D”, etc.
  • the technical features described in “first”, “second”, “third”, “A”, “B”, “C” and “D” are in no particular order or order.
  • the corresponding relationships shown in each table in this application can be configured or predefined.
  • the values of the information in each table are only examples and can be configured as other values, which are not limited by this application.
  • the corresponding relationships shown in some rows may not be configured.
  • appropriate deformation adjustments can be made based on the above table, such as splitting, merging, etc.
  • the names of the parameters shown in the titles of the above tables may also be other names understandable by the communication device, and the values or expressions of the parameters may also be other values or expressions understandable by the communication device.
  • other data structures can also be used, such as arrays, queues, containers, stacks, linear lists, pointers, linked lists, trees, graphs, structures, classes, heaps, hash tables or hash tables. wait.
  • Predefinition in this application can be understood as definition, pre-definition, storage, pre-storage, pre-negotiation, pre-configuration, solidification, or pre-burning.

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Abstract

本申请实施例公开了一种随机接入控制方法及装置，可以应用于长期演进(long term evolution，LTE)系统、第五代(5th generation，5G)移动通信系统、5G新空口(new radio，NR)系统，或者其他未来的新型移动通信系统等通信系统，该方法包括：确定所述终端设备当前使用的候选小区或小区组配置发生变更；根据变更之后的所述的候选小区或小区组配置确定激活的目标小区或小区组；在满足预设条件的情况下，在所述激活的目标小区或小区组对应的小区或小区组发起随机接入。通过实施本申请实施例，可以通过网络侧设备的配置和预设条件使终端发起随机接入，以满足特定的通信场景需求，从而节省通信资源，避免资源浪费。

Description

一种随机接入控制方法及装置 技术领域
本申请涉及通信技术领域，尤其涉及一种随机接入控制方法及装置。
背景技术
无线通信中，当网络侧给终端配置一个或多个候选小区或小区组配置，终端设备可以根据配置的触发事件，来发起随机接入过程。当终端将服务小区或小区组对应的候选小区或小区组配置进行变更的时候，终端以何种方式发起随机接入过程(以及是否发起随机接入过程)是需要解决的问题。
但是，目前尚缺乏用于确定终端以何种方式发起随机接入过程的手段。
发明内容
本申请实施例提供一种随机接入控制方法及装置，可以应用于长期演进(long term evolution，LTE)系统、第五代(5th generation，5G)移动通信系统、5G新空口(new radio，NR)系统，或者其他未来的新型移动通信系统等通信系统，通过确定侧链路准备时长，可以避免在未准备好PSSCH数据之前发送PSSCH，从而有利于节省资源，避免资源浪费。
第一方面，本申请实施例提供一种随机接入控制方法，所述方法由终端设备执行，该方法包括：
确定所述终端设备当前使用的候选小区或小区组配置发生变更；
根据变更之后的所述的候选小区或小区组配置确定激活的目标小区或小区组；
在所述激活的目标小区或小区组对应的小区或小区组发起随机接入。
可选的，所述确定所述终端设备当前使用的候选小区或小区组配置发生变更，包括以下至少一项：
响应于接收到所述网络侧设备发送的变更指示信息，确定所述当前使用的候选小区或小区组配置发生变更；
根据预配置条件，确定当前使用的候选小区或小区组配置发生变更。
可选的，所述在所述激活的目标小区或小区组对应的小区或小区组发起随机接入包括：
在满足预设条件的情况下，在所述激活的目标小区或小区组对应的小区或小区组发起随机接入。
可选的，当满足以下中的至少一项时，确定满足预设条件：
所述激活的目标小区或小区组没有可用的上行定时TA；
接收到所述网络侧设备的指示信息，其中，所述指示信息指示所述终端设备在所述激活的目标小区或小区组对应的小区或小区组发起随机接入；
所述激活的目标小区或小区组没有可用的上行定时TA，且接收到所述网络侧设备的指示信息；
在所述激活的目标小区或小区组发生了连接失败或者在特殊小区或小区组发生了连接失败。
可选的，所述指示信息之中包括随机接入资源指示信息。
可选的，所述随机接入资源指示信息，包括以下至少一项：
随机接入资源前导标识；
随机接入的时频资源标识；
随机接入资源对应的波束标识。
第二方面，本申请实施例提供另一种随机接入控制方法，所述方法由网络侧设备执行，该方法包括：
为终端设备配置候选小区或小区组配置；
变更所述终端设备当前使用的候选小区或小区组配置，并提供激活的目标小区或小区组，使所述终端设备在所述激活的目标小区或小区组对应的小区或小区组发起随机接入。
通过实施本申请实施例，可以通过网络侧设备的配置和预设条件使终端发起随机接入，以满足预设的通信场景需求，从而节省通信资源，避免资源浪费。
可选的，所述变更所述终端设备当前使用的候选小区或小区组配置，包括：
向所述终端设备发送变更指示信息，以使所述终端设备确定所述当前使用的候选小区或小区组配置发生变更。
可选的，所述方法还包括：
向终端设备发送指示信息，以使所述终端设备满足所述预设条件，其中，所述指示信息指示所述终端设备在所述激活的目标小区或小区组对应的小区或小区组发起随机接入。
可选的，所述指示信息之中包括随机接入资源指示信息。
可选的，所述随机接入资源指示信息，包括以下至少一项：
随机接入资源前导标识；
随机接入的时频资源标识；
随机接入资源对应的波束标识。
第三方面，本申请实施例提供一种通信装置，该通信装置具有实现上述第一方面所述的方法中终端设备的部分或全部功能，比如通信装置的功能可具备本申请中的部分或全部实施例中的功能，也可以具备单独实施本申请中的任一个实施例的功能。所述功能可以通过硬件实现，也可以通过硬件执行相应的软件实现。所述硬件或软件包括一个或多个与上述功能相对应的单元或模块。
在一种实现方式中，该通信装置的结构中可包括收发模块和处理模块，所述处理模块被配置为支持通信装置执行上述方法中相应的功能。所述收发模块用于支持通信装置与其他设备之间的通信。所述通信装置还可以包括存储模块，所述存储模块用于与收发模块和处理模块耦合，其保存通信装置必要的计算机程序和数据。
作为示例，处理模块可以为处理器，收发模块可以为收发器或通信接口，存储模块可以为存储器。在一种实现方式中，所述通信装置包括：
变更确定模块，用于确定所述终端设备当前使用的候选小区或小区组配置发生变更；
配置确定模块，用于根据变更之后的所述的候选小区或小区组配置确定激活的目标小区或小区组；
随机接入模块，用于在所述激活的目标小区或小区组对应的小区或小区组发起随机接入。
第四方面，本申请实施例提供另一种通信装置，该通信装置具有实现上述第二方面所述的方法示例中网络侧设备的部分或全部功能，比如通信装置的功能可具备本申请中的部分或全部实施例中的功能，也可以具备单独实施本申请中的任一个实施例的功能。所述功能可以通过硬件实现，也可以通过硬件执行相应的软件实现。所述硬件或软件包括一个或多个与上述功能相对应的单元或模块。
在一种实现方式中，该通信装置的结构中可包括收发模块和处理模块，该处理模块被配置为支持通信装置执行上述方法中相应的功能。收发模块用于支持通信装置与其他设备之间的通信。所述通信装置还可以包括存储模块，所述存储模块用于与收发模块和处理模块耦合，其保存通信装置必要的计算机程序和数据。
作为示例，处理模块可以为处理器，收发模块可以为收发器或通信接口，存储模块可以为存储器。在一种实现方式中，所述通信装置包括：
配置模块，用于为终端设备配置候选小区或小区组配置；
随机接入控制模块，用于变更所述终端设备当前使用的候选小区或小区组配置，并提供激活的目标小区或小区组，使所述终端设备在所述激活的目标小区或小区组对应的小区或小区组发起随机接入。
第五方面，本申请实施例提供一种通信装置，该通信装置包括处理器，当该处理器调用存储器中的计算机程序时，执行上述第一方面所述的方法。
第六方面，本申请实施例提供一种通信装置，该通信装置包括处理器，当该处理器调用存储器中的计算机程序时，执行上述第二方面所述的方法。
第七方面，本申请实施例提供一种通信装置，该通信装置包括处理器和存储器，该存储器中存储有计算机程序；所述处理器执行该存储器所存储的计算机程序，以使该通信装置执行上述第一方面所述的方法。
第八方面，本申请实施例提供一种通信装置，该通信装置包括处理器和存储器，该存储器中存储有计算机程序；所述处理器执行该存储器所存储的计算机程序，以使该通信装置执行上述第二方面所述的方法。
第九方面，本申请实施例提供一种通信装置，该装置包括处理器和接口电路，该接口电路用于接收代码指令并传输至该处理器，该处理器用于运行所述代码指令以使该装置执行上述第一方面所述的方法。
第十方面，本申请实施例提供一种通信装置，该装置包括处理器和接口电路，该接口电路用于接收代码指令并传输至该处理器，该处理器用于运行所述代码指令以使该装置执行上述第二方面所述的方法。
第十一方面，本申请实施例提供一种随机接入控制系统，该系统包括第三方面所述的通信装置以及第四方面所述的通信装置，或者，该系统包括第五方面所述的通信装置以及第六方面所述的通信装置，或者，该系统包括第七方面所述的通信装置以及第八方面所述的通信装置，或者，该系统包括第九方面所述的通信装置以及第十方面所述的通信装置。
第十二方面，本发明实施例提供一种计算机可读存储介质，用于储存为上述终端设备所用的指令，当所述指令被执行时，使所述终端设备执行上述第一方面所述的方法。
第十三方面，本发明实施例提供一种可读存储介质，用于储存为上述网络侧设备所用的指令，当所述指令被执行时，使所述网络侧设备执行上述第二方面所述的方法。
第十四方面，本申请还提供一种包括计算机程序的计算机程序产品，当其在计算机上运行时，使得计算机执行上述第一方面所述的方法。
第十五方面，本申请还提供一种包括计算机程序的计算机程序产品，当其在计算机上运行时，使得计算机执行上述第二方面所述的方法。
第十六方面，本申请提供一种芯片系统，该芯片系统包括至少一个处理器和接口，用于支持终端设备实现第一方面所涉及的功能，例如，确定或处理上述方法中所涉及的数据和信息中的至少一种。在一种可能的设计中，所述芯片系统还包括存储器，所述存储器，用于保存终端设备必要的计算机程序和数据。该芯片系统，可以由芯片构成，也可以包括芯片和其他分立器件。
第十七方面，本申请提供一种芯片系统，该芯片系统包括至少一个处理器和接口，用于支持网络侧设备实现第二方面所涉及的功能，例如，确定或处理上述方法中所涉及的数据和信息中的至少一种。在一种可能的设计中，所述芯片系统还包括存储器，所述存储器，用于保存网络侧设备必要的计算机程序和数据。该芯片系统，可以由芯片构成，也可以包括芯片和其他分立器件。
第十八方面，本申请提供一种计算机程序，当其在计算机上运行时，使得计算机执行上述第一方面所述的方法。
第十九方面，本申请提供一种计算机程序，当其在计算机上运行时，使得计算机执行上述第二方面所述的方法。
附图说明
为了更清楚地说明本申请实施例或背景技术中的技术方案，下面将对本申请实施例或背景技术中所需要使用的附图进行说明。
图1是本申请实施例提供的一种通信系统的架构示意图；
图2是本申请实施例提供的一种随机接入控制方法的流程示意图；
图3是本申请实施例提供的一种随机接入控制方法的流程示意图；
图4是本申请实施例提供的一种通信装置的结构示意图；
图5是本申请实施例提供的另一种通信装置的结构示意图；
图6是本申请实施例提供的一种芯片的结构示意图。
具体实施方式
为了便于理解，首先介绍本申请涉及的术语。
1、下行控制信息(downlink control information，DCI)
DCI由物理下行控制信道(physical downlink control channel，PDCCH)承载，DCI可以包括上下行资源分配、混合自动重传请求(hybrid automatic repeat request，HARQ)信息、功率控制等。PDCCH是一种物理信道，用于承载下行调度信息。
3、媒体接入控制层控制元素(MAC Control Element，MAC CE)
媒体接入控制层控制元素MAC CE是终端和网络之间交换控制信息的一个途径，顾名思义，它交换的是关于MAC层的控制信息。
为了更好的理解本申请实施例公开的一种随机接入控制方法，下面首先对本申请实施例适用的通信系统进行描述。
请参见图1，图1为本申请实施例提供的一种通信系统的架构示意图。该通信系统可包括但不限于一个网络侧设备和一个终端设备，图1所示的设备数量和形态仅用于举例并不构成对本申请实施例的限定，实际应用中可以包括两个或两个以上的网络侧设备，两个或两个以上的终端设备。图1所示的通信 系统以包括一个网络侧设备101和一个终端设备102为例。
需要说明的是，本申请实施例的技术方案可以应用于各种通信系统。例如：长期演进(long term evolution，LTE)系统、第五代(5th generation，5G)移动通信系统、5G新空口(new radio，NR)系统，或者其他未来的新型移动通信系统等。还需要说明的是，本申请实施例中的侧链路还可以称为侧行链路或直通链路。
本申请实施例中的网络侧设备101是网络侧的一种用于发射或接收信号的实体。例如，网络侧设备101可以为演进型基站(evolved NodeB，eNB)、传输点(transmission reception point，TRP)、NR系统中的下一代基站(next generation NodeB，gNB)、其他未来移动通信系统中的基站或无线保真(wireless fidelity，WiFi)系统中的接入节点等。本申请的实施例对网络侧设备所采用的具体技术和具体设备形态不做限定。本申请实施例提供的网络侧设备可以是由集中单元(central unit，CU)与分布式单元(distributed unit，DU)组成的，其中，CU也可以称为控制单元(control unit)，采用CU-DU的结构可以将网络侧设备，例如基站的协议层拆分开，部分协议层的功能放在CU集中控制，剩下部分或全部协议层的功能分布在DU中，由CU集中控制DU。
本申请实施例中的终端设备102是用户侧的一种用于接收或发射信号的实体，如手机。终端设备也可以称为终端设备(terminal)、用户设备(user equipment，UE)、移动台(mobile station，MS)、移动终端设备(mobile terminal，MT)等。终端设备可以是具备通信功能的汽车、智能汽车、手机(mobile phone)、穿戴式设备、平板电脑(Pad)、带无线收发功能的电脑、虚拟现实(virtual reality，VR)终端设备、增强现实(augmented reality，AR)终端设备、工业控制(industrial control)中的无线终端设备、无人驾驶(self-driving)中的无线终端设备、远程手术(remote medical surgery)中的无线终端设备、智能电网(smart grid)中的无线终端设备、运输安全(transportation safety)中的无线终端设备、智慧城市(smart city)中的无线终端设备、智慧家庭(smart home)中的无线终端设备等等。本申请的实施例对终端设备所采用的具体技术和具体设备形态不做限定。
在5G系统中由于采用了双连接(Dual Connectivity，DC)架构，包括两个小区(或小区组)组：
主小区(或小区组)组(Master Cell Group，MCG)：对应网络侧的主节点(Master Node，MN)；
辅小区(或小区组)组(Secondary Cell Group，SCG)：对应网络侧的辅节点(Secondary Node，SN)。
其中MCG包括1个主小区(或小区组)(Primary Cell，PCell)和1个或多个辅小区(或小区组)(Secondary Cell，SCell)。SCG包括1个主辅小区(或小区组)(Primary Secondary Cell，PSCell)和1个或多个SCell。其中PCell和PSCell可以统称为特殊小区(或小区组)(Special Cell，SpCell)。
在通信系统中，网络侧设备可以给终端设备提供多个候选小区或小区组。网络侧设备后续可以通过L1(如DCI)或L2(如MAC CE)信令控制终端设备在多个“候选小区或小区组”进行变更(如，将工作的小区(或小区组)从“候选小区(或小区组)-1”变更为“候选小区(或小区组)-2”)。
其中，1个服务小区(或小区组)可以对应1个或多个“候选小区(或小区组)”。
终端设备可以从网络侧设备获取“预配置的条件”，以及和该条件对应的“预配置的小区(或小区组)”。当终端设备满足“预配置的条件”(如，特定测量事件)，则终端将服务小区(或小区组)变更为“预配置的小区(或小区组)”。
随机接入过程是指从用户发送随机接入前导码开始尝试接入网络到与网络间建立起基本的信令连接之前的过程。随机接入是移动通信系统中非常关键的步骤，也是终端设备与网络侧设备建立通信链路的最后一步。终端设备通过随机接入与基站进行信息交互，完成后续操作：如呼叫、资源请求、数据传输等，同时终端设备通过随机接入实现与系统的上行时间同步。随机接入的性能直接影响到用户的体验。
但是，当终端设备满足“预配置的条件”(如，特定测量事件)，并终端将服务小区(或小区组)变更为“预配置的小区(或小区组)”，的情况下尚缺乏用于确定终端发起随机接入过程的具体方式的手段。
可以理解的是，本申请实施例描述的通信系统是为了更加清楚的说明本申请实施例的技术方案，并不构成对于本申请实施例提供的技术方案的限定，本领域普通技术人员可知，随着系统架构的演变和新业务场景的出现，本申请实施例提供的技术方案对于类似的技术问题，同样适用。
下面结合附图对本申请所提供的随机接入控制方法及装置进行详细地介绍。
请参见图2，图2是本申请实施例提供的一种随机接入控制方法的流程示意图。所述方法由终端设备执行，如图2所示，该方法可以包括但不限于如下步骤：
步骤201：确定所述终端设备当前使用的候选小区或小区组配置发生变更；
本申请实施例中，通信系统采用双连接(Dual Connectivity，DC)架构，在所述架构下，包括主小区组(Master Cell Group，MCG)和辅小区组(Secondary Cell Group，SCG)。在MCG下，可能会有很多个小区Cell，其中有一个用于发起初始接入的小区，这个小区称为主小区(Primary Cell，PCell)。PCell是MCG里面最主要的小区。MCG下的PCell和MCG下的SCell通过载波聚合(Carrier Aggregation，CA)联合在一起。在SCG下也有一个最主要的小区，也就是主辅小区(Primary Secondary Cell，PSCell)，所述PSCell为在SCG下发起初始接入的小区。SCG下的PSCell和SCG下的SCell也是通过CA联合在一起。小区是指在通信系统中，其中的一个基站或基站的一部分所覆盖的区域，在这个区域内终端侧设备可以通过无线信道可靠地与基站进行通信。为了给终端设备配置用于通信的小区或小区组，网络侧设备通过配置消息为终端设备配置对应的候选小区或候选小区组。
当前系统中，每1个小区(或小区组)会被分配1个服务小区(或小区组)配置(如，ServingCellConfig)。其中，该服务小区(或小区组)配置会关联1个服务小区(或小区组)标识(如，ServCellIndex)用于在终端设备内部唯一标识1个服务小区(或小区组)。其中，PCell的服务小区(或小区组)标识为“0”。而1个服务小区(或小区组)会关联1个混合自动重复请求(Hybrid Automatic Repeat Request，HARQ)实体，该HARQ实体包括多个HARQ进程。
终端设备运行时会被配置一个或多个候选小区或小区组，当终端设备确定当前使用的候选小区或小区组配置发生变更后，说明需要将服务小区变为网络侧设备预配置的小区(或小区组)，即目标小区或小区组。步骤202：根据变更之后的所述的候选小区或小区组配置确定激活的目标小区或小区组。
本申请实施例中，所述变更之后的候选小区或小区组配置中包括目标小区或小区组，为了对所述目标小区或小区组发起随机接入，需要对其进行激活操作，使所述目标小区或小区组进入激活态。
步骤203：在所述激活的目标小区或小区组对应的小区或小区组发起随机接入。
本申请实施例中，终端设备确定激活的目标小区或小区组后，即可在所述激活的目标小区或小区组对应的小区或小区组发起随机接入，以和目标小区或小区组对应的小区或小区组建立无线链路，进行数据的互操作。向激活的目标小区或小区组对应的小区或小区组申请上行资源或进行上行同步。
可选的，所述确定所述终端设备当前使用的候选小区或小区组配置发生变更，包括以下至少一项：
响应于接收到所述网络侧设备发送的变更指示信息，确定所述当前使用的候选小区或小区组配置发生变更；
本申请实施例中，终端设备可以根据网络侧设备发送的变更指示信息，直接对当前使用的候选小区或小区组配置进行变更。(如，将终端的PCell配置从候选小区(或小区组)配置-1变更为候选小区(或小区组)配置-2)
根据预配置条件，确定当前使用的候选小区或小区组配置发生变更。
本申请实施例中，终端设备还可以基于网络侧设备为其提供的预配置条件，以及和该预配置条件对应的“预配置的小区(或小区组)”判断当前使用的候选小区或小区组配置发生变更。当终端满足所述预配置条件(如，特定测量事件)，则终端将服务小区(或小区组)变更为“预配置的小区(或小区组)”。其中，该基于条件触发的移动性过程包括以下至少一项：
条件切换(Conditional Handover，CHO)，即当满足一个或多个切换执行条件时由终端设备执行的切换；
条件主辅小区(或小区组)添加(Conditional PSCell Addition，CPA)，即当满足一个或多个切换执行条件时添加新的主辅小区(或小区组)；
条件主辅小区(或小区组)变更(Conditional PSCell Change，CPC)，即当满足一个或多个切换执行条件时对主辅小区(或小区组)进行变更。
在本申请提出一种随机接入控制方法中，包括：
根据所述网络侧设备提供的置一个或多个候选小区或小区组配置来确定对应的候选小区或小区组。
在本申请提出一种随机接入控制方法中，包括：
确定终端设备当前使用的候选小区或小区组配置发生变更；
本实施例中，终端设备运行时会被配置一个或多个候选小区或小区组，当终端设备确定当前使用的候选小区或小区组配置发生变更后，说明需要将服务小区变为网络侧设备预配置的小区(或小区组)，即目标小区或小区组。
在一种可能的实施例中，终端设备根据所述网络侧设备提供的置一个或多个候选小区或小区组配置来确定对应的候选小区或小区组。
在本申请提出一种随机接入控制方法中，包括：
在激活的目标小区或小区组对应的小区或小区组发起随机接入。
本申请实施例中，终端设备通过与在激活的目标小区或小区组对应的小区或小区组发起随机接入，以和目标小区或小区组对应的小区或小区组建立无线链路，进行数据的互操作。向激活的目标小区或小区组对应的小区或小区组申请上行资源或进行上行同步。
在本申请提出一种随机接入控制方法中，包括：
在满足预设条件的情况下，在所述激活的目标小区或小区组对应的小区或小区组发起随机接入。
本申请实施例中，网络侧设备根据使用场景为终端设备预配置了预设条件，如果满足预设条件，则说明终端设备满足了与变更后的目标小区或小区组对应的小区或小区组进行随机接入的条件，需要在所述激活的目标小区或小区组对应的小区或小区组发起随机接入，以建立通信链路，满足特定通信场景的需求。
本公开的所有实施例可以单独被实施，也可以一起被实施，本公开实施例并不对此做出限定。
可选的，当满足以下中的至少一项时，确定满足预设条件：
所述激活的目标小区或小区组没有可用的上行定时TA。
本申请实施例中，随机接入过程的触发事件包括：
从RRC_IDLE发起初始接入；
RRC连接重建过程；
当上行同步状态为不同步时，下行或上行数据达到；
当没有用于调度请求(Scheduling Request，SR)发送的物理上行控制信道(Physical Uplink Control Channel，PUCCH)资源时，上行数据到达；
SR发送失败；
RRC请求的同步重配置(如，切换)；
从RRC_INACTIVE发起连接恢复过程；
给辅定时提前组(Secondary Timing Advance Group，STAG)建立上行定时；
请求发送其他系统信息(SystemInformation，SI)；
波束失败恢复；
SpCell上的连续上行信道接入失败；
RRC_INACTIVE发起小数据传输(Small Data Transmission，SDT)过程；
在连接态出于定位目的请求随机接入过程，如出于终端定位目的而需要TA.
根据以上随机接入过程的触发事件来设置所述预设条件，以使终端设备在满足以上触发事件的场景下满足所述预设条件并发起随机接入过程。
终端设备在接收到下行信号后，可以确定下行信号子帧的位置。为了避免上行干扰，网络侧设备要保证不同终端设备发送的信号在固定的时刻到达，因此网络侧需要给终端的上行发送配置一个上行定时提前量，即上行定时(Timing Advance，TA)。终端设备在收到该TA值后，如果终端设备要发送上行信号，则终端设备以下行子帧位置为参考再提前TA时间值进行上行信号的发送。
关于TA值的获取。终端设备只有在上行失步状态才需要获取TA值，因此可以终端设备自己触发或网络侧设备触发终端发起随机接入过程，该随机接入过程的随机接入请求消息发送的物理随机接入信道(Physical Random Access Channel，PRACH)采用协议规定的初始默认TA值(如，TA＝0)，网络侧设备在随机接入响应中给终端设备下发TA值。
关于TA值的维护。由于终端设备的位置在不停的变化，因此需要对于TA值的有效性进行维护。网络侧的TA值维护过程中，可以对终端的TA值设置一个定时器(timeAlignmentTimer)，在下发TA命令给终端设备的时候启动定时器，在定时器超时前网络侧设备下发新的TA值给终端。终端设备的TA值维护过程中，根据网络侧设备设置的定时器，在收到TA值的时候启动或重启，在定时器超后认为该TA值失效，终端上行为失步状态，不能再在上行失步的小区发送上行信号。
由于终端设备可能会被配置多个小区，而不同小区的上行TA可能不一样，因此将不同TA值的小区可以划分为不同的TA组(TA Group,TAG)。其中与SpCell的TA相同的小区组成的TAG为主定时提前组(Primary Timing Advance Group，PTAG),与SCell的TA相同的小区组成的TAG为STAG。
如果所述激活的目标小区或小区组没有可用的上行定时TA，则终端设备可以判断满足所述预设条件。
接收到所述网络侧设备的指示信息，其中，所述指示信息指示所述终端设备在所述激活的目标小区或小区组对应的小区或小区组发起随机接入。
本申请实施例中，如果终端设备接收到所述网络侧设备的指示信息，且所述指示信息指示所述终端设备在所述激活的目标小区或小区组对应的小区或小区组发起随机接入，则可以判定满足所述预设条件，终端设备需要在所述激活的目标小区或小区组对应的小区或小区组发起随机接入。
所述激活的目标小区或小区组没有可用的上行定时TA，且接收到所述网络侧设备的指示信息。
在所述激活的目标小区或小区组发生了连接失败，或者在特殊小区或小区组发生了连接失败。
本申请实施例中，终端设备的连接失败包括以下几种：切换失败(如，在规定时间内切换没有完成(如，定时器t304超时))；SCG change失败(如，在规定时间内接入新的SCG(Secondary Cell Group，辅小区组)没有完成(如，定时器t307超时))；小区变更失败(如，在规定时间内没有完成小区变更)；小区激活失败(如，在规定时间内没有完成小区激活)；无线链路失败(即，RLF(Radio Link Failure))。
其中，该“无线链路失败”包括以下至少一项：物理层失步(如，定时器t310超时)；MAC层的随机接入失败(如，达到最大随机接入尝试次数)；无线链路控制子层(Radio Link Control，RLC)达到最大重传次数指示(如，达到最大RLC层最大重传次数)。波束失败(如，波束失败检测机制检测到发生了波束失败(如，波束失败计数器达到门限值))
可选的，上述连接失败可以限定为针对SpCell的候选小区(或小区组)
可选的，所述指示信息之中包括随机接入资源指示信息。
本申请实施例中，述指示信息之中包括随机接入资源指示信息，用于为终端设备指示随机接入过程所用的信道资源。
在一种可能的实施例中，所述指示信息由MACCE或DCI携带并发送至终端设备。
可选的，所述随机接入资源指示信息，包括以下至少一项：
随机接入资源前导标识；
随机接入的时频资源标识；
随机接入资源对应的波束标识。
本申请实施例中，终端设备在随机接入资源前导标识(如preamble index)中向gNB的最优波束发射；随机接入的时频资源标识(如，PRACH resource index)；随机接入资源对应的波束标识包括以下至少一项：
同步信号块(Synchronous Signal Block，SSB)标识；
信道状态信息参考信号(Channel State Information Reference Signal，CSI-RS)标识。
通过实施本申请实施例，可以通过网络侧设备的配置和预设条件使终端发起随机接入，以满足预设的通信场景需求，从而节省通信资源，避免资源浪费。
请参见图3，图3是本申请实施例提供的一种随机接入控制方法的流程示意图。所述方法由终端设备执行，如图3所示，该方法可以包括但不限于如下至少一个步骤：
步骤301：为终端设备配置候选小区或小区组配置；
本申请实施例中，网络侧设备会提前给终端设备配置对应的候选小区或小区组配置，以为网络侧设备配置对应的候选小区或小区组。如，通过RRCReconfiguration消息提供的候选小区(或小区组)配置。
每1个小区(或小区组)会被分配1个服务小区(或小区组)配置(如，ServingCellConfig)。其中，该服务小区(或小区组)配置会关联1个服务小区(或小区组)标识(如，ServCellIndex)用于在终端设备内部唯一标识1个服务小区(或小区组)。其中，PCell的服务小区(或小区组)标识为“0”。而1个服务小区(或小区组)会关联1个混合自动重复请求(Hybrid Automatic Repeat Request，HARQ)实体，该HARQ实体包括多个HARQ进程。
当终端设备确定所述终端设备当前使用的候选小区或小区组配置发生变更后，说明需要将服务小区变为网络侧设备预配置的小区(或小区组)，即目标小区或小区组。
步骤302：变更所述终端设备当前使用的候选小区或小区组配置，并提供激活的目标小区或小区组，使所述终端设备在所述激活的目标小区或小区组对应的小区或小区组发起随机接入。
本申请实施例中，网络侧设备可以通过配置指示来使终端设备当前的使用的候选小区或小区组配置发生变更，并提供激活的目标小区或小区组。使终端设备在激活的目标小区或小区组发起随机接入过程，与激活的目标小区或小区组建立通信链路。
通过实施本申请实施例，可以通过网络侧设备的配置和预设条件使终端发起随机接入，以满足预设的通信场景需求，从而节省通信资源，避免资源浪费。
在本申请提出一种随机接入控制方法中，包括：
变更所述终端设备当前使用的候选小区或小区组配置，并提供激活的目标小区或小区组，使所述终 端设备满足预设条件下在所述激活的目标小区或小区组对应的小区或小区组发起随机接入。
本申请实施例中，网络侧设备可以通过配置指示来使终端设备当前的使用的候选小区或小区组配置发生变更，并提供激活的目标小区或小区组。使终端设备根据预设条件判断是否需要对激活的目标小区或小区组发起随机接入过程。如果满足所述预设条件，即可使终端设备在激活的目标小区或小区组发起随机接入过程，与激活的目标小区或小区组建立通信链路。
可选的，所述变更所述终端设备当前使用的候选小区或小区组配置，包括：
向所述终端设备发送变更指示信息，以使所述终端设备确定所述当前使用的候选小区或小区组配置发生变更。
本申请实施例中，网络侧设备向终端设备发送变更指示信息，以使终端设备对当前使用的候选小区或小区组配置进行变更。(如，将终端的PCell配置从候选小区(或小区组)配置-1变更为候选小区(或小区组)配置-2)。
可选的，所述变更指示信息由MACCE或DCI携带。
可选的，所述方法还包括：
向终端设备发送指示信息，以使所述终端设备满足所述预设条件，其中，所述指示信息指示所述终端设备在所述激活的目标小区或小区组对应的小区或小区组发起随机接入。
可选的，所述指示信息之中包括随机接入资源指示信息。
本申请实施例中，网络侧设备发送的指示信息之中包括随机接入资源指示信息，用于为终端设备指示随机接入过程所用的信道资源。
可选的，所述随机接入资源指示信息，包括以下至少一项：
随机接入资源前导标识；
随机接入的时频资源标识；
随机接入资源对应的波束标识。
本申请实施例中，所述终端设备在随机接入资源前导标识(如preamble index)中向gNB的最优波束发射；随机接入的时频资源标识(如，PRACH resource index)；随机接入资源对应的波束标识包括以下至少一项：
SSB标识；
CSI-RS标识。
通过实施本申请实施例，可以通过网络侧设备的配置和预设条件使终端发起随机接入，以满足预设的通信场景需求，从而节省通信资源，避免资源浪费。
上述本申请提供的实施例中，分别从网络侧设备、终端设备的角度对本申请实施例提供的方法进行了介绍。为了实现上述本申请实施例提供的方法中的各功能，网络侧设备和终端设备可以包括硬件结构、软件模块，以硬件结构、软件模块、或硬件结构加软件模块的形式来实现上述各功能。上述各功能中的某个功能可以以硬件结构、软件模块、或者硬件结构加软件模块的方式来执行。
请参见图4，为本申请实施例提供的一种通信装置40的结构示意图。图4所示的通信装置40可包括收发模块401和处理模块402。收发模块401可包括发送模块和/或接收模块，发送模块用于实现发送功能，接收模块用于实现接收功能，收发模块401可以实现发送功能和/或接收功能。
通信装置40可以是终端设备(如前述方法实施例中的终端设备)，也可以是终端设备中的装置，还可以是能够与终端设备匹配使用的装置。或者，通信装置40可以是网络侧设备，也可以是网络侧设备中的装置，还可以是能够与网络侧设备匹配使用的装置。
通信装置40为终端设备(如前述方法实施例中的终端设备)：
变更确定模块，用于确定所述终端设备当前使用的候选小区或小区组配置发生变更；
配置确定模块，用于根据变更之后的所述的候选小区或小区组配置确定激活的目标小区或小区组；
随机接入模块，用于在所述激活的目标小区或小区组对应的小区或小区组发起随机接入。
通信装置40为网络侧设备：
配置模块，用于为终端设备配置候选小区或小区组配置；
随机接入控制模块，用于变更所述终端设备当前使用的候选小区或小区组配置，并提供激活的目标小区或小区组，使所述终端设备在所述激活的目标小区或小区组对应的小区或小区组发起随机接入。
请参见图5，图5是本申请实施例提供的另一种通信装置50的结构示意图。通信装置50可以是网络侧设备，也可以是终端设备(如前述方法实施例中的终端设备)，也可以是支持网络侧设备实现上述方法的芯片、芯片系统、或处理器等，还可以是支持终端设备实现上述方法的芯片、芯片系统、或处理 器等。该装置可用于实现上述方法实施例中描述的方法，具体可以参见上述方法实施例中的说明。
通信装置50可以包括一个或多个处理器501。处理器501可以是通用处理器或者专用处理器等。例如可以是基带处理器或中央处理器。基带处理器可以用于对通信协议以及通信数据进行处理，中央处理器可以用于对通信装置(如，基站、基带芯片，终端设备、终端设备芯片，DU或CU等)进行控制，执行计算机程序，处理计算机程序的数据。
可选的，通信装置50中还可以包括一个或多个存储器502，其上可以存有计算机程序503，处理器501执行所述计算机程序503，以使得通信装置50执行上述方法实施例中描述的方法。可选的，所述存储器502中还可以存储有数据。通信装置50和存储器502可以单独设置，也可以集成在一起。
可选的，通信装置50还可以包括收发器504、天线505。收发器504可以称为收发单元、收发机、或收发电路等，用于实现收发功能。收发器504可以包括接收器和发送器，接收器可以称为接收机或接收电路等，用于实现接收功能；发送器可以称为发送机或发送电路等，用于实现发送功能。
可选的，通信装置50中还可以包括一个或多个接口电路506。接口电路506用于接收代码指令并传输至处理器501。处理器501运行所述代码指令以使通信装置50执行上述方法实施例中描述的方法。
通信装置50为终端设备(如前述方法实施例中的终端设备)：处理器501用于执行图2中的步骤201、步骤202和步骤203。
通信装置50为网络侧设备：收发器504用于执行图3中的步骤301和步骤302。
在一种实现方式中，处理器501中可以包括用于实现接收和发送功能的收发器。例如该收发器可以是收发电路，或者是接口，或者是接口电路。用于实现接收和发送功能的收发电路、接口或接口电路可以是分开的，也可以集成在一起。上述收发电路、接口或接口电路可以用于代码/数据的读写，或者，上述收发电路、接口或接口电路可以用于信号的传输或传递。
在一种实现方式中，处理器501可以存有计算机程序503，计算机程序503在处理器501上运行，可使得通信装置50执行上述方法实施例中描述的方法。计算机程序503可能固化在处理器501中，该种情况下，处理器501可能由硬件实现。
在一种实现方式中，通信装置50可以包括电路，所述电路可以实现前述方法实施例中发送或接收或者通信的功能。本申请中描述的处理器和收发器可实现在集成电路(integrated circuit，IC)、模拟IC、射频集成电路RFIC、混合信号IC、专用集成电路(application specific integrated circuit，ASIC)、印刷电路板(printed circuit board，PCB)、电子设备等上。该处理器和收发器也可以用各种IC工艺技术来制造，例如互补金属氧化物半导体(complementary metal oxide semiconductor，CMOS)、N型金属氧化物半导体(nMetal-oxide-semiconductor，NMOS)、P型金属氧化物半导体(positive channel metal oxide semiconductor，PMOS)、双极结型晶体管(bipolar junction transistor，BJT)、双极CMOS(BiCMOS)、硅锗(SiGe)、砷化镓(GaAs)等。
以上实施例描述中的通信装置可以是网络侧设备或者终端设备(如前述方法实施例中的终端设备)，但本申请中描述的通信装置的范围并不限于此，而且通信装置的结构可以不受图4的限制。通信装置可以是独立的设备或者可以是较大设备的一部分。例如所述通信装置可以是：
(1)独立的集成电路IC，或芯片，或，芯片系统或子系统；
(2)具有一个或多个IC的集合，可选的，该IC集合也可以包括用于存储数据，计算机程序的存储部件；
(3)ASIC，例如调制解调器(Modem)；
(4)可嵌入在其他设备内的模块；
(5)接收机、终端设备、智能终端设备、蜂窝电话、无线设备、手持机、移动单元、车载设备、网络侧设备、云设备、人工智能设备等等；
(6)其他等等。
对于通信装置可以是芯片或芯片系统的情况，可参见图6所示的芯片的结构示意图。图6所示的芯片包括处理器601和接口602。其中，处理器601的数量可以是一个或多个，接口602的数量可以是多个。
可选的，芯片还包括存储器603，存储器603用于存储必要的计算机程序和数据。
本领域技术人员还可以了解到本申请实施例列出的各种说明性逻辑块(illustrative logical block)和步骤(step)可以通过电子硬件、电脑软件，或两者的结合进行实现。这样的功能是通过硬件还是软件来实现取决于特定的应用和整个系统的设计要求。本领域技术人员可以对于每种特定的应用，可以使用各种方法实现所述的功能，但这种实现不应被理解为超出本申请实施例保护的范围。
本申请实施例还提供一种随机接入控制系统，该系统包括前述图4实施例中作为终端设备(如前述方法实施例中的终端设备)的通信装置和作为网络侧设备的通信装置，或者，该系统包括前述图4实施例中作为终端设备(如前述方法实施例中的终端设备)的通信装置和作为网络侧设备的通信装置。
本申请还提供一种可读存储介质，其上存储有指令，该指令被计算机执行时实现上述任一方法实施例的功能。
本申请还提供一种计算机程序产品，该计算机程序产品被计算机执行时实现上述任一方法实施例的功能。
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程序。在计算机上加载和执行所述计算机程序时，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。所述计算机程序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，所述计算机程序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 disk，SSD))等。
本领域普通技术人员可以理解：本申请中涉及的第一、第二等各种数字编号仅为描述方便进行的区分，并不用来限制本申请实施例的范围，也表示先后顺序。
本申请中的至少一个还可以描述为一个或多个，多个可以是两个、三个、四个或者更多个，本申请不做限制。在本申请实施例中，对于一种技术特征，通过“第一”、“第二”、“第三”、“A”、“B”、“C”和“D”等区分该种技术特征中的技术特征，该“第一”、“第二”、“第三”、“A”、“B”、“C”和“D”描述的技术特征间无先后顺序或者大小顺序。
本申请中各表所示的对应关系可以被配置，也可以是预定义的。各表中的信息的取值仅仅是举例，可以配置为其他值，本申请并不限定。在配置信息与各参数的对应关系时，并不一定要求必须配置各表中示意出的所有对应关系。例如，本申请中的表格中，某些行示出的对应关系也可以不配置。又例如，可以基于上述表格做适当的变形调整，例如，拆分，合并等等。上述各表中标题示出参数的名称也可以采用通信装置可理解的其他名称，其参数的取值或表示方式也可以通信装置可理解的其他取值或表示方式。上述各表在实现时，也可以采用其他的数据结构，例如可以采用数组、队列、容器、栈、线性表、指针、链表、树、图、结构体、类、堆、散列表或哈希表等。
本申请中的预定义可以理解为定义、预先定义、存储、预存储、预协商、预配置、固化、或预烧制。
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。
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 (17)

  1. 一种随机接入控制方法，其特征在于，所述方法由终端设备执行，所述方法包括：
    确定所述终端设备当前使用的候选小区或小区组配置发生变更；
    根据变更之后的所述的候选小区或小区组配置确定激活的目标小区或小区组；
    在所述激活的目标小区或小区组对应的小区或小区组发起随机接入。
  2. 如权利要求1所述的方法，其特征在于，所述确定所述终端设备当前使用的候选小区或小区组配置发生变更，包括以下至少一项：
    响应于接收到所述网络侧设备发送的变更指示信息，确定所述当前使用的候选小区或小区组配置发生变更；
    根据预配置条件，确定当前使用的候选小区或小区组配置发生变更。
  3. 如权利要求1所述的方法，其特征在于，所述在所述激活的目标小区或小区组对应的小区或小区组发起随机接入包括：
    在满足预设条件的情况下，在所述激活的目标小区或小区组对应的小区或小区组发起随机接入。
  4. 如权利要求3所述的方法，其特征在于，当满足以下中的至少一项时，确定满足预设条件：
    所述激活的目标小区或小区组没有可用的上行定时TA；
    所述终端设备接收到所述网络侧设备的指示信息，其中，所述指示信息指示所述终端设备在所述激活的目标小区或小区组对应的小区或小区组发起随机接入；
    所述激活的目标小区或小区组没有可用的上行定时TA，且所述终端设备接收到所述网络侧设备的指示信息；
    在所述激活的目标小区或小区组发生了连接失败或者在特殊小区或小区组发生了连接失败。
  5. 如权利要求4所述的方法，其特征在于，所述指示信息之中包括随机接入资源指示信息。
  6. 如权利要求5所述的方法，其特征在于，所述随机接入资源指示信息，包括以下至少一项：
    随机接入资源前导标识；
    随机接入的时频资源标识；
    随机接入资源对应的波束标识。
  7. 一种随机接入控制方法，其特征在于，所述方法由网络侧设备执行，所述方法包括：
    为终端设备配置候选小区或小区组配置；
    变更所述终端设备当前使用的候选小区或小区组配置，并提供激活的目标小区或小区组，使所述终端设备在所述激活的目标小区或小区组对应的小区或小区组发起随机接入。
  8. 如权利要求7所述的方法，其特征在于，所述变更所述终端设备当前使用的候选小区或小区组配置，包括：
    向所述终端设备发送变更指示信息，以使所述终端设备确定所述当前使用的候选小区或小区组配置发生变更。
  9. 如权利要求7所述的方法，其特征在于，所述方法还包括：
    向终端设备发送指示信息，
    其中，所述指示信息指示所述终端设备在所述激活的目标小区或小区组对应的小区或小区组发起随机接入。
  10. 如权利要求9所述的方法，其特征在于，所述指示信息之中包括随机接入资源指示信息。
  11. 如权利要求10所述的方法，其特征在于，所述随机接入资源指示信息，包括以下至少一项：
    随机接入资源前导标识；
    随机接入的时频资源标识；
    随机接入资源对应的波束标识。
  12. 一种通信装置，其特征在于，应用于终端设备，包括：
    变更确定模块，用于确定所述终端设备当前使用的候选小区或小区组配置发生变更；
    配置确定模块，用于根据变更之后的所述的候选小区或小区组配置确定激活的目标小区或小区组；
    随机接入模块，用于在所述激活的目标小区或小区组对应的小区或小区组发起随机接入。
  13. 一种通信装置，其特征在于，应用于网络侧设备，包括：
    配置模块，用于为终端设备配置候选小区或小区组配置；
    随机接入控制模块，用于变更所述终端设备当前使用的候选小区或小区组配置，并提供激活的目标小区或小区组，以使所述终端设备在所述激活的目标小区或小区组对应的小区或小区组发起随机接入。
  14. 一种通信装置，其特征在于，所述装置包括处理器和存储器，所述存储器中存储有计算机程序，所述处理器执行所述存储器中存储的计算机程序，以使所述装置执行如权利要求1至6中任一项所述的方法。
  15. 一种通信装置，其特征在于，所述装置包括处理器和存储器，所述存储器中存储有计算机程序，所述处理器执行所述存储器中存储的计算机程序，以使所述装置执行如权利要求7至11中任一项所述的方法。
  16. 一种计算机可读存储介质，用于存储有指令，当所述指令被执行时，使如权利要求1至6中任一项所述的方法被实现。
  17. 一种计算机可读存储介质，用于存储有指令，当所述指令被执行时，使如权利要求7至11中任一项所述的方法被实现。
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Citations (4)

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WO2020251466A1 (en) * 2019-06-14 2020-12-17 Telefonaktiebolaget Lm Ericsson (Publ) Neighbor cell synchronization upon state transition
CN113676965A (zh) * 2020-05-15 2021-11-19 夏普株式会社 小区变更方法以及用户设备
WO2022021247A1 (zh) * 2020-07-30 2022-02-03 Oppo广东移动通信有限公司 基于条件的辅节点或主辅小区变更方法及设备
CN114071612A (zh) * 2020-08-07 2022-02-18 大唐移动通信设备有限公司 辅小区组的主小区更新方法、装置及存储介质

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020251466A1 (en) * 2019-06-14 2020-12-17 Telefonaktiebolaget Lm Ericsson (Publ) Neighbor cell synchronization upon state transition
CN113676965A (zh) * 2020-05-15 2021-11-19 夏普株式会社 小区变更方法以及用户设备
WO2022021247A1 (zh) * 2020-07-30 2022-02-03 Oppo广东移动通信有限公司 基于条件的辅节点或主辅小区变更方法及设备
CN114071612A (zh) * 2020-08-07 2022-02-18 大唐移动通信设备有限公司 辅小区组的主小区更新方法、装置及存储介质

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