WO2024017182A1 - 随机接入方法及装置、计算机可读存储介质 - Google Patents

随机接入方法及装置、计算机可读存储介质 Download PDF

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Publication number
WO2024017182A1
WO2024017182A1 PCT/CN2023/107677 CN2023107677W WO2024017182A1 WO 2024017182 A1 WO2024017182 A1 WO 2024017182A1 CN 2023107677 W CN2023107677 W CN 2023107677W WO 2024017182 A1 WO2024017182 A1 WO 2024017182A1
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WIPO (PCT)
Prior art keywords
random access
anchor
network device
synchronization signal
signal block
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PCT/CN2023/107677
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English (en)
French (fr)
Inventor
雷珍珠
周化雨
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展讯半导体(南京)有限公司
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Publication of WO2024017182A1 publication Critical patent/WO2024017182A1/zh

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02—Power saving arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02—Power saving arrangements
    • H04W52/0203—Power saving arrangements in the radio access network or backbone network of wireless communication networks
    • 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]
    • 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

Definitions

  • the present invention relates to the field of wireless communication technology, and in particular, to a random access method and device, and a computer-readable storage medium.
  • the energy consumption of network equipment mainly includes two parts: static power consumption and dynamic power consumption.
  • Static power consumption mainly includes static reception power consumption and static transmission power consumption.
  • Static reception power consumption mainly includes the network receiving the random access request message (Msg1) on the configured random access resources.
  • Static transmission power consumption mainly includes the transmission of synchronization signal blocks. , sending paging messages, sending system information, etc.
  • the embodiments of the present invention solve the technical problem of high static energy consumption of network equipment.
  • embodiments of the present invention provide a random access method, which is applied to a terminal device, including: when detecting that a trigger condition is met or a trigger instruction is received, sending instruction information to the anchor network device; the instruction information Used to instruct the anchor network device to trigger the non-anchor network device to initiate physical random access channel reception; and send a random access request message to the non-anchor network device.
  • sending the indication information to the anchor network device includes: sending a first random access preamble to the anchor network device, where the first random access preamble carries the indication information.
  • sending the first random access preamble to the anchor network device includes: using the first random access opportunity configured on the anchor carrier to send the first random access preamble to the anchor network device. Random access preamble.
  • the method before sending a specific random access preamble to the anchor network device, the method further includes: obtaining a system message sent by the anchor network device; and obtaining the specific random access preamble from the system message. Enter the preamble.
  • the method before sending the first random access preamble to the anchor network device, the method further includes: obtaining a system message sent by the anchor network device; obtaining the first random access preamble from the system message. Enter the preamble configuration information.
  • the configuration information of the first random access preamble includes: an index range of the first random access preamble; or a set of index numbers of the first random access preamble.
  • the obtaining the system message sent by the anchor network device includes: receiving the system message sent by the anchor network device on the anchor carrier.
  • the random access method further includes: obtaining an association between the first random access preamble and an anchor synchronization signal block; the anchor synchronization signal block is an anchor carrier synchronization signal block or Anchor cell synchronization signal block.
  • sending the first random access preamble to the anchor network device includes: determining the target anchor synchronization signal block based on the measurement results corresponding to the anchor synchronization signal block; and determining the target anchor synchronization signal block from the first Among the random access preambles, a target random access preamble corresponding to the target anchor point synchronization signal block is selected; and the target random access preamble is sent to the anchor point network device.
  • determining the target anchor synchronization signal block based on the measurement results corresponding to the anchor synchronization signal block includes: selecting the top K anchors with the highest signal quality based on the signal quality of the anchor synchronization signal block.
  • Point synchronization signal blocks are used as the target anchor synchronization signal blocks; 1 ⁇ K ⁇ M, and M is the total number of the anchor synchronization signal blocks.
  • sending the indication information to the anchor network device includes: using periodic uplink resources to send the indication information to the anchor network device.
  • the method before sending the indication information to the anchor network device using periodic uplink resources, the method further includes: obtaining a system message sent by the anchor network device; and obtaining the periodicity from the system message. Configuration information of uplink resources.
  • the configuration information of the periodic uplink resources is the configuration information of a second random access opportunity.
  • the second random access opportunity is used to send the indication information.
  • the second random access opportunity is part of The random access opportunity used to send the random access request message.
  • using periodic uplink resources to send the indication information to the anchor network device includes: using the second random access opportunity to send a second random access preamble, and the indication information carries As for the second random access preamble, the second random access preamble is any random access preamble for random access.
  • the random access method further includes: obtaining an association between the periodic uplink resources and an anchor synchronization signal block; the anchor synchronization signal block is an anchor carrier synchronization signal block or an anchor cell. Sync signal block.
  • using periodic uplink resources to send the indication information to the anchor network device includes: determining according to the measurement results corresponding to the anchor synchronization signal block.
  • Target anchor point synchronization signal block select a target uplink resource corresponding to the target anchor point synchronization signal block from the periodic uplink resources; use the target uplink resource to send the instruction to the anchor point network device information.
  • determining the target anchor synchronization signal block based on the measurement results corresponding to the anchor synchronization signal block includes: selecting the top K anchors with the highest signal quality based on the signal quality of the anchor synchronization signal block.
  • the point synchronization signal block is used as the target anchor synchronization signal block; 1 ⁇ K ⁇ M, and M is the total number of the anchor synchronization signal blocks.
  • the triggering condition includes: N consecutive random access failures on the anchor carrier.
  • receiving the trigger indication includes: acquiring the trigger indication by receiving paging downlink control information; or acquiring the trigger indication by receiving paging advance indication; or acquiring the trigger indication by receiving paging messages. trigger indication.
  • sending a random access request message to the non-anchor network device includes: using a random access resource for sending a random access request message, sending the random access request message to the non-anchor network device. Access request message.
  • sending a random access request message to the non-anchor network device includes: after sending the indication information to the anchor network device, delaying X time units and sending the random access request message to the non-anchor network device. Send the random access request message.
  • An embodiment of the present invention also provides another random access method, including: receiving indication information; the indication information is used to instruct the anchor network device to trigger a non-anchor network device to initiate physical random access channel reception; triggering the non-anchor network device to initiate physical random access channel reception; The anchor network device initiates physical random access channel reception.
  • triggering a non-anchor network device to start physical random access channel reception includes: triggering all non-anchor network devices within the coverage range to start physical random access channel reception through the Xn interface.
  • the random access method further includes: sending a system message, where the system message includes any of the following: configuration information of the first random access preamble; periodic uplink information. Source configuration information.
  • sending the system message includes: sending the system message on an anchor carrier.
  • the random access method further includes: sending the association between the first random access preamble and the anchor synchronization signal block; or, sending the periodic uplink resource and the anchor synchronization signal block.
  • the anchor synchronization signal block is an anchor carrier synchronization signal block or an anchor cell synchronization signal block.
  • Embodiments of the present invention also provide a random access device, applied to terminal equipment, including: a first sending unit, configured to send indication information to the anchor network device when it detects that the trigger condition is met or a trigger indication is received; The instruction information is used to instruct the anchor network device to trigger the non-anchor network device to initiate physical random access channel reception; the second sending unit is used to send a random access request message to the non-anchor network device.
  • a first sending unit configured to send indication information to the anchor network device when it detects that the trigger condition is met or a trigger indication is received
  • the instruction information is used to instruct the anchor network device to trigger the non-anchor network device to initiate physical random access channel reception
  • the second sending unit is used to send a random access request message to the non-anchor network device.
  • An embodiment of the present invention also provides another random access device, which is applied to non-anchor network equipment and includes: a receiving unit, configured to receive indication information; the indication information is used to instruct the anchor network equipment to trigger non-anchor network equipment.
  • the point network device starts receiving the physical random access channel; the triggering unit is used to trigger the non-anchor network device to start receiving the physical random access channel.
  • Embodiments of the present invention also provide a computer-readable storage medium.
  • the computer-readable storage medium is a non-volatile storage medium or a non-transitory storage medium, and a computer program is stored thereon.
  • the computer program is processed by a processor. The steps of any of the above random access methods are executed during runtime.
  • An embodiment of the present invention also provides another random access device, including a memory and a processor.
  • the memory stores a computer program that can be run on the processor.
  • the processor runs the computer program, it executes The steps of any of the above random access methods.
  • the terminal device When detecting that the trigger condition is met or receiving a trigger indication, the terminal device sends indication information to the anchor network device. After receiving the indication information, the anchor network device triggers The non-anchor network device initiates physical random access channel reception. Afterwards, the terminal device sends a random access request message to the non-anchor network device to access the non-anchor network device. Since the non-anchor network device starts receiving the physical random access channel after being triggered, the power consumption of the non-anchor network device can be effectively reduced.
  • Figure 1 is a flow chart of a random access method in an embodiment of the present invention
  • Figure 2 is a schematic diagram of an existing communication scenario
  • Figure 3 is a flow chart of another random access method in an embodiment of the present invention.
  • Figure 4 is a schematic structural diagram of a random access device in an embodiment of the present invention.
  • Figure 5 is a schematic structural diagram of another random access device in an embodiment of the present invention.
  • Network energy saving is an issue of great concern to mobile operators and equipment manufacturers.
  • Network energy saving is very beneficial to reducing operating costs and environmental protection.
  • the carriers corresponding to some frequency bands (such as 4GHz, 6GHz or 26GHz, etc.) ) or cells can be turned off as much as possible and turned on as needed to achieve network energy saving.
  • network energy saving can be achieved by switching certain carriers on and off, but this can only be achieved when the network load is low.
  • a carrier or cell that can be turned on on demand may be called a non-anchor carrier (non-anchor carrier) or a non-anchor cell (non-anchor cell).
  • a carrier or cell that is not shut down may be called an anchor carrier (anchor carrier) or anchor cell (non-anchor cell).
  • anchor carrier an anchor carrier
  • anchor cell an anchor cell
  • non-anchor cells are deployed in the anchor cell coverage area.
  • the anchor carrier provides a wide range of coverage, while the non-anchor carrier has a smaller coverage area and provides high-speed data transmission services.
  • the non-anchor carrier is controlled by the network and can be turned on on demand, as shown in Figure 2 below. Referring to Figure 2, a schematic diagram of an existing communication scenario is given. In Figure 2, there are multiple non-anchor cells within the coverage area of the anchor cell.
  • the terminal device when detecting that the trigger condition is met or receiving a trigger indication, the terminal device sends indication information to the anchor network device. After receiving the indication information, the anchor network device triggers the non-anchor network device to start physical random access channel reception. Afterwards, the terminal device sends a random access request message to the non-anchor network device to access the non-anchor network device. Since the non-anchor network device starts receiving the physical random access channel after being triggered, the power consumption of the non-anchor network device can be effectively reduced.
  • the terminal device in the embodiment of the present invention is a device with wireless communication functions, which can be called a terminal (terminal), user equipment (UE), mobile station (MS), mobile terminal (MT) ), access terminal equipment, vehicle-mounted terminal equipment, industrial control terminal equipment, UE unit, UE station, mobile station, remote station, remote terminal equipment, mobile equipment, UE terminal equipment, wireless communication equipment, UE agent or UE device, etc.
  • Terminal equipment can be fixed or mobile.
  • the terminal device may support at least one wireless communication technology, such as LTE, new radio (new radio, NR), etc.
  • the terminal device may be a mobile phone, Tablet computers (pads), desktop computers, notebook computers, all-in-one computers, vehicle-mounted terminals, virtual reality (VR) terminal equipment, augmented reality (AR) terminal equipment, wireless terminals in industrial control (industrial control) , wireless terminals in self-driving, wireless terminals in remote medical surgery, wireless terminals in smart grid, wireless terminals in transportation safety, smart cities ( Wireless terminals in smart cities, wireless terminals in smart homes, cellular phones, cordless phones, session initiation protocol (SIP) phones, wireless local loop (WLL) stations, Personal digital assistant (PDA), handheld device with wireless communication function, computing device or other processing device connected to a wireless modem, wearable device, terminal device in future mobile communication network or future evolved public mobile land Terminal equipment in the network (public land mobile network, PLMN), etc.
  • the terminal device may also be a device with transceiver functions, such as a chip system.
  • the chip system may include chips and may also include other discrete devices
  • the network device is a device that provides wireless communication functions for terminals, and may also be called a radio access network (radio access network, RAN) device, an access network element, etc.
  • the network device can support at least one wireless communication technology, such as LTE, NR, etc.
  • network equipment includes but is not limited to: next-generation base station (generation nodeB, gNB), evolved node B (evolved node B, eNB), and wireless network control in the fifth-generation mobile communication system (5th-generation, 5G).
  • the network device may also be a wireless controller, a centralized unit (CU), and/or a distributed unit (DU) in a cloud radio access network (CRAN) scenario, or the network device may For relay stations, access points, vehicle-mounted equipment, terminal equipment, wearable devices and access network equipment in future mobile communications or or access network equipment in future evolved PLMNs.
  • the network device may also be a device with a wireless communication function for the terminal device, such as a chip system.
  • the chip system may include a chip, and may also include other discrete devices.
  • the access network device can also communicate with an Internet Protocol (Internet Protocol, IP) network, such as the Internet, a private IP network, or other data networks.
  • IP Internet Protocol
  • An embodiment of the present invention provides a random access method. Referring to Figure 1, detailed description will be given below through specific steps.
  • the random access method corresponding to the following steps 101 to 102 can be executed by a chip with data processing capabilities in the terminal device, or by a chip module in the terminal device including the above-mentioned chip with data processing capabilities. executed by the group.
  • the following introduction takes the terminal device as the execution subject as an example.
  • Step 101 When it is detected that the trigger condition is met or a trigger instruction is received, instruction information is sent to the anchor network device.
  • the indication information may be used to instruct the anchor network device to trigger the non-anchor network device to initiate physical random access channel (Physical Random Access Channel, PRACH) reception.
  • Physical Random Access Channel Physical Random Access Channel
  • the anchor network device after receiving the indication information, the anchor network device can trigger the non-anchor network device to start PRACH reception.
  • the non-anchor network device may be a network device corresponding to a non-anchor cell or a non-anchor carrier
  • the anchor network device may be a network device corresponding to an anchor cell or anchor carrier.
  • anchor carriers or anchor cells can provide wide-area coverage
  • non-anchor carriers or non-anchor cells can provide high-speed data transmission.
  • the coverage area of non-anchor carriers or non-anchor cells is usually smaller than that of non-anchor carriers. Coverage of point carriers or non-anchor cells.
  • the coverage area of the non-anchor carrier or non-anchor cell may be within the coverage area of the anchor carrier or anchor cell.
  • the anchor network device can pass an interface between network devices (such as Such as the Xn interface), interact with non-anchor network devices.
  • the anchor network device can trigger all non-anchor network devices within its coverage to start PRACH reception.
  • the anchor network device can trigger the above-mentioned multiple non-anchor network devices to start PRACH reception.
  • the terminal device satisfying the triggering condition may mean that the terminal device fails random access on the anchor carrier for N consecutive times, N ⁇ 2. That is to say, when the terminal device fails to randomly access the anchor point carrier multiple times in a row, it can be determined that the terminal device meets the triggering conditions. After detecting that the triggering conditions are met, the terminal device can send indication information to the non-anchor network device.
  • the trigger indication may be used to instruct the terminal device to send indication information to the non-anchor network device.
  • the trigger indication can also be used to instruct the terminal device to perform random access through non-anchor carriers.
  • the trigger indication may be carried in a paging message.
  • the terminal device receives the paging message carrying the trigger indication on the anchor carrier, it can determine that the trigger indication has been received. After receiving the trigger indication, the terminal device can also send indication information to the non-anchor network device.
  • the trigger indication can also be carried in paging downlink control information (Paging DCI).
  • Paging DCI paging downlink control information
  • the terminal device receives the Paging DCI on the anchor carrier and obtains the trigger indication from the Paging DCI.
  • a dedicated bit field can be set, and the trigger indication is represented by the value of the dedicated bit field.
  • the length of the dedicated bit field can be 1 bit.
  • the terminal device receives the Paging DCI and detects that the value of the dedicated bit field in the Paging DCI is 1, it is determined that the trigger indication has been received.
  • the trigger instruction may also be carried in a paging advance instruction (Paging massage).
  • the terminal device receives the paging massage on the anchor point carrier and obtains the trigger indication from the paging massage.
  • a dedicated bit field can be set, and the trigger indication is represented by the value of the dedicated bit field.
  • the length of the dedicated bit field can be 1 bit.
  • the terminal device receives the Paging message and detects that the value of the dedicated bit field in the Paging message is 1, it is determined that the trigger indication has been received.
  • the length of the dedicated bit field in Paging DCI or Paging massage can also be 2 bits or more bits. Setting the length of the dedicated bit field to 1 bit can save downlink overhead and improve resource utilization efficiency.
  • the value of the dedicated bit field that represents the presence of a trigger indication can also be other values.
  • the length of the dedicated bit field is 1 bit, then the value of the dedicated bit field can also be set to 0, indicating that there is a trigger indication.
  • the indication information sent by the terminal device to the anchor network device may be carried by the first random access preamble (preamble).
  • the indication information sent by the terminal device to the anchor network device may be characterized by the first random access preamble.
  • the number of first random access preambles may be one or more.
  • the terminal device may use the first random access opportunity (RO) configured on the anchor point carrier to send the first random access preamble to the anchor point network device.
  • RO random access opportunity
  • the anchor network device may configure one or more first random access preambles for the terminal device.
  • the anchor network device may send a system message to the terminal device, and the system message carries configuration information of the configured first random access preamble.
  • the anchor network device may send system messages to the terminal device on the anchor carrier.
  • the terminal device may receive a system message sent by the anchor network device on the anchor carrier, and obtain configuration information of one or more first random access preambles configured by the anchor network device.
  • the configuration information of the first random access preamble may include the first random access preamble.
  • the index address range of the random access preamble; or, the configuration information of the first random access preamble may include a set of index numbers of the first random access preamble.
  • the configuration information of the first random access preamble can essentially be used to indicate which random access preambles are the first random access preambles.
  • the random access preamble 1 and the random access preamble 2 are determined to be the first random access preamble.
  • the anchor network device may select the first random access preamble from the contention random access preamble subset, or may select the first random access preamble from the non-contention random access preamble subset.
  • the anchor network device can randomly select the first random access preamble from the contention random access preamble subset or the non-contention random access preamble subset, or it can also select the first random access preamble code from the contention random access preamble subset according to the preset selection rules. Or select the first random access preamble from a subset of non-contention random access preambles.
  • the anchor network device randomly selects two random access preambles from the competition random access preamble subset, namely random access preamble 1 and random access preamble 3. Then random access preamble 1 and random access preamble 3 are randomly selected.
  • Access preamble 3 is the above-mentioned first random access preamble.
  • the anchor network device selects two random access preambles from the non-contention random access preamble subset according to preset rules, namely random access preamble 2 and random access preamble 4, then the random access preamble is randomly accessed.
  • the input preamble 2 and the random access preamble 4 are the above-mentioned first random access preamble.
  • the terminal device may also send indication information to the anchor network device on periodic uplink resources.
  • the anchor network device can configure the configuration information of the periodic uplink resources for the terminal device, and send the configuration information of the periodic uplink resources to the terminal device through a system message on the anchor carrier.
  • the terminal device receives the system message on the anchor carrier, thereby obtaining the configuration information of periodic uplink resources on the anchor carrier, and then determines the periodic uplink resources.
  • the periodic uplink resources on the anchor carrier may include a second random access opportunity, and the second random access opportunity is used to send indication information.
  • the configuration information of the periodic uplink resources is the configuration information of the second random access opportunity.
  • the indication information may be carried in the second random access preamble, or in other types of sequences.
  • the configuration information of the RO may include the period of the RO, the number of ROs in the time domain within a PRACH cycle, and the number of ROs multiplexed in the frequency (msg1 -FDM), and RO-associated synchronization signal block (ssb-perRACH-occasion), etc.
  • the terminal device When the terminal device detects that the trigger condition is met or receives a trigger indication, the terminal device may use the second random access opportunity to send indication information to the anchor network device. After receiving the second random access preamble carried by the second random access opportunity, the anchor network device triggers the non-anchor network device to start RACH reception.
  • Step 102 Send a random access request message to the non-anchor network device.
  • the terminal device uses the anchor point carrier to send the indication information to the anchor point network device, it can use the random access resources configured on the non-anchor point carrier for sending the random access request message to send the random access request.
  • message i.e. Msg1.
  • the random access resource used to send the random access request message may include a random access preamble used to send the random access request and a random access opportunity. Random access resources used to send random access request messages are configured on non-anchor carriers. The first random access preamble and the second random access opportunity are configured on the anchor carrier.
  • the random access preamble used to send the random access request message may be different from the above-mentioned first access preamble; the random access opportunity used to send the random access request may be the same as the above-mentioned second random access preamble. Entry timing is different.
  • the terminal device after the terminal device uses the anchor point carrier to send the indication information to the anchor point network device, it can also delay X time units, and then use the non-anchor point carrier configured for sending the random access request message.
  • Random access resources send Msg1.
  • time The unit of the unit can be symbol, time slot, ms, etc.
  • the value of X can be configured by the network or preset for the protocol.
  • the non-anchor network device starts PRACH reception after being triggered by the anchor network device. It may take a period of time for the non-anchor network device to start RRACH reception, during which the non-anchor network device will not receive the random access request message sent by the terminal device. If the terminal device sends a random access request message immediately after sending the instruction information, the random access request message sent by the terminal device will not be received by the non-anchor network device, resulting in a waste of power consumption.
  • sending the random access request message is delayed by X time units to ensure that the non-anchor network device can receive the random access request message sent by the terminal device, thereby avoiding waste of power consumption of the terminal device.
  • the terminal device when it is detected that the trigger condition is met or a trigger indication is received, the terminal device sends indication information to the anchor network device. After receiving the indication information, the anchor network device triggers the non-anchor network device to start physical random access channel reception. Afterwards, the terminal device sends a random access request message to the non-anchor network device to access the non-anchor network device. Since the non-anchor network device starts receiving the physical random access channel after being triggered, the power consumption of the non-anchor network device can be effectively reduced.
  • the anchor network device can also configure the association between each first random access preamble and the anchor synchronization signal block.
  • the anchor synchronization signal block may be a synchronization signal block transmitted on the anchor point carrier or a synchronization signal block transmitted by the anchor point cell.
  • the terminal device can determine the target anchor synchronization signal block based on the measurement results corresponding to the anchor synchronization signal block, and then select the target random access preamble corresponding to the target anchor synchronization signal block from the first random access preamble. . That is to say, the target random access preamble may be selected from the first random access preamble, and the number of target random access preambles is not greater than the number of first random access preambles.
  • the terminal device may send the target random access Preamble.
  • the instruction information sent by the terminal device to the anchor network device is carried by the target random access preamble.
  • the indication information sent by the terminal device to the anchor network device may be characterized by the target random access preamble.
  • the anchor network device receives the target random access preamble, it can determine that the indication information has been received.
  • the indication information sent by the terminal device to the anchor network device may be characterized by the target random access preamble.
  • the anchor network device receives the target random access preamble, it can determine that the indication information has been received.
  • the top K anchor synchronization signal blocks with the highest signal quality can be selected as the target anchor synchronization signal block, 1 ⁇ K ⁇ M, M is the anchor synchronization signal block the total number.
  • the anchor network device may directly configure the association between each first random access preamble and the synchronization signal block.
  • the anchor network device specifies through the system information that the first random access preamble corresponding to the anchor carrier is ⁇ Preamble1, Preamble2 ⁇ .
  • Preamble1 corresponds to SSB1 and SSB2
  • preamble2 corresponds to SSB3 and SSB4.
  • the target SSB is determined based on the measurement results of the SSB signal quality (RSRP/RSRQ) on the anchor carrier.
  • the terminal device determines that the target random access preamble is Preamble1 corresponding to SSB1 based on the association between SSB and Preamble.
  • the terminal device sends Preamble1 to the anchor network device.
  • Preamble1 is used to instruct the anchor network device to trigger the non-anchor network device to start PRACH reception.
  • the anchor network device may also configure a mapping rate between the first random access preamble and the synchronization signal block, and the terminal device may associate the first random access preamble with the synchronization signal block according to the mapping rate and preset rules.
  • the anchor carrier For example, four synchronization signal blocks are transmitted on the anchor carrier, namely SSB1, SSB2, SSB3 and SSB4.
  • the anchor network device is configured with a mapping rate of 2, that is, one first random access preamble corresponds to two SSBs.
  • the terminal equipment may associate Preamble1 with SSB1 and SSB2 and Preamble2 with SSB3 and SSB4 in ascending order of SSB index numbers.
  • the anchor network device may also configure an association between periodic uplink resources and anchor synchronization signal blocks.
  • the terminal device can determine the target anchor synchronization signal block based on the measurement results corresponding to the anchor synchronization signal block, and then select the target uplink resource corresponding to the target anchor synchronization signal block from the periodic uplink resources.
  • the terminal device may use the target uplink resource to send indication information to the anchor network device.
  • the target uplink resources may be selected from periodic uplink resources, and the number of target uplink resources is not greater than the number of periodic uplink resources.
  • the instruction information sent by the terminal device to the anchor network device is carried by the target uplink resource.
  • the indication information sent by the terminal device to the anchor network device may be characterized by the target uplink resource.
  • the top K anchor synchronization signal blocks with the highest signal quality can be selected as the target anchor synchronization signal block, 1 ⁇ K ⁇ M, M is the anchor synchronization signal block the total number.
  • the anchor network device can directly configure the association between each periodic uplink resource and the synchronization signal block.
  • the anchor network device specifies that the periodic uplink resource 1 corresponding to the anchor carrier is associated with SSB1 and SSB2 through the system information, and the periodic uplink Resource 2 is associated with SSB3 and SSB4.
  • the SSB signal quality (RSRP/RSRQ) on the anchor carrier is The measurement results determine the target SSB.
  • the terminal device determines that the target uplink resource is periodic uplink resource 1 based on the association between SSB and periodic uplink resources.
  • the terminal device sends indication information to the anchor network device through periodic uplink resource 1.
  • the anchor network device can also configure the mapping rate between periodic uplink resources and synchronization signal blocks.
  • the terminal device can associate periodic uplink resources with synchronization signal blocks according to the mapping rate and preset rules.
  • the anchor network device is configured with a mapping rate of 2, that is, one periodic uplink resource corresponds to two SSBs.
  • the terminal equipment can associate periodic uplink resource 1 with SSB1 and SSB2 and associate periodic uplink resource 2 with SSB3 and SSB4 in ascending order of SSB index numbers.
  • the random access method corresponding to the following steps 301 to 302 can be executed by a chip with data processing capabilities in the anchor network device, or by the anchor network device including the above-mentioned chip with data processing capabilities.
  • the chip is executed by the chip module.
  • the following introduction takes the anchor network device as the execution subject as an example.
  • Step 301 Receive instruction information.
  • the terminal device when the terminal device detects that the trigger condition is met or receives a trigger indication, the terminal device may send indication information to the anchor network device.
  • the indication information may be used to instruct the anchor network device to trigger the non-anchor network device to initiate PRACH reception.
  • the trigger conditions satisfied by the terminal device can be referred to the above embodiments, and will not be described again here.
  • the indication information sent by the terminal device to the anchor network device may be carried by the first random access preamble (preamble).
  • the end device points to the anchor
  • the indication information sent by the point network device may be characterized by the first random access preamble.
  • the number of first random access preambles may be one or more.
  • the terminal device may use the first random access opportunity (RO) configured on the anchor point carrier to send the first random access preamble to the anchor point network device.
  • RO random access opportunity
  • the anchor network device may configure one or more first random access preambles for the terminal device.
  • the anchor network device may send a system message to the terminal device, and the system message carries configuration information of the configured first random access preamble.
  • the anchor network device may send system messages to the terminal device on the anchor carrier.
  • the terminal device may receive a system message sent by the anchor network device on the anchor carrier, and obtain configuration information of one or more first random access preambles configured by the anchor network device.
  • the configuration information of the first random access preamble may include the index address range of the first random access preamble; or, the configuration information of the first random access preamble may include the first random access preamble A collection of index numbers.
  • the anchor network device may select the first random access preamble from the contention random access preamble subset, or may select the first random access preamble from the non-contention random access preamble subset.
  • the anchor network device can randomly select the first random access preamble from the contention random access preamble subset or the non-contention random access preamble subset, or it can also select the first random access preamble code from the contention random access preamble subset according to the preset selection rules. Or select the first random access preamble from a subset of non-contention random access preambles.
  • the anchor network device may also configure an association between each first random access preamble and the anchor synchronization signal block.
  • the terminal device selects the target random access preamble from the first random access preamble based on the measurement results corresponding to the anchor synchronization signal block. code, the target random access preamble carries the indication information.
  • the anchor network device can also configure the association between periodic uplink resources and anchor synchronization signal blocks.
  • the terminal device selects the target uplink resource from the periodic uplink resources according to the measurement result corresponding to the anchor synchronization signal block, and sends the indication information on the target uplink resource.
  • Step 302 Trigger the non-anchor network device to start physical random access channel reception.
  • the anchor network device may trigger the non-anchor network device to initiate PRACH reception.
  • the anchor network device can interact with the non-anchor network device through an interface between network devices (for example, an Xn interface).
  • the anchor network device can trigger all non-anchor network devices within its coverage to start PRACH reception.
  • the anchor network device can trigger the above-mentioned multiple non-anchor network devices to start PRACH reception.
  • the non-anchor network device starts PRACH reception after being triggered, the power consumption of the non-anchor network device can be effectively reduced.
  • a random access device 40 in an embodiment of the present invention including: a first sending unit 401 and a second sending unit 402, wherein:
  • the first sending unit 401 is configured to send indication information to the anchor network device when it detects that the trigger condition is met or a trigger indication is received; the indication information is used to instruct the anchor network device to trigger the non-anchor network device to start the physical Random access channel reception;
  • the second sending unit 402 is configured to send a random access request message to the non-anchor network device.
  • the specific execution process of the above-mentioned first sending unit 401 and the second sending unit 402 may refer to steps 101 to 102, which will not be described again here.
  • the above-mentioned random access device 40 may correspond to a chip with a data processing function in the terminal equipment; or may correspond to a chip with a data processing function in the terminal equipment.
  • FIG. 5 another random access device 50 in the embodiment of the present invention is shown, including: a receiving unit 501 and a triggering unit 502, wherein:
  • the receiving unit 501 is configured to receive indication information; the indication information is used to instruct the anchor network device to trigger the non-anchor network device to initiate physical random access channel reception;
  • the triggering unit 502 is used to trigger the non-anchor network device to start physical random access channel reception.
  • the specific execution process of the above-mentioned receiving unit 501 and triggering unit 502 may refer to steps 301 to 302, which will not be described again here.
  • the above-mentioned random access device 50 may correspond to a chip with a data processing function in a network device; or correspond to a chip module including a chip with a data processing function in a network device; or correspond to a network device.
  • each module/unit included in each device and product described in the above embodiments may be a software module/unit or a hardware module/unit, or it may be partly a software module/unit and partly is a hardware module/unit.
  • each module/unit included therein can be implemented in the form of hardware such as circuits, or at least some of the modules/units can be implemented in the form of a software program.
  • the software program Running on the processor integrated inside the chip, the remaining (if any) modules/units can be implemented using circuits and other hardware methods; for various devices and products applied to or integrated into the chip module, each module/unit included in it can They are all implemented in the form of hardware such as circuits.
  • Different modules/units can be located in the same component of the chip module (such as chips, circuit modules, etc.) or in different components. Alternatively, at least some modules/units can be implemented in the form of software programs.
  • the software program runs on the processor integrated inside the chip module, and the remaining (if any) modules/units can be implemented using circuits and other hardware methods; for each device or product that is applied to or integrated into the terminal, each module it contains /Units can all be implemented in hardware such as circuits, and different modules/units can be located in the same component within the terminal (for example, chips, circuit modules, etc.) or in different components, or at least some modules/units can be implemented in the form of software programs that run on the processor integrated inside the terminal, and the remaining (if any) modules/units can be implemented using Circuit and other hardware implementation.
  • Embodiments of the present invention also provide a computer-readable storage medium.
  • the computer-readable storage medium is a non-volatile storage medium or a non-transitory storage medium, and a computer program is stored thereon.
  • the computer program is processed by a processor. During runtime, the steps of the random access method provided in steps 101 to 102 are executed, or the steps of the random access method provided in steps 301 to 302 are executed.
  • An embodiment of the present invention also provides a random access device, including a memory and a processor.
  • the memory stores a computer program that can be run on the processor.
  • the processor executes steps when running the computer program. Steps of the random access method provided in steps 101 to 102, or steps of the random access method provided in steps 301 to 302.
  • the program can be stored in a computer-readable storage medium.
  • the storage medium can include: ROM, RAM, magnetic disk or CD, etc.

Abstract

一种随机接入方法及装置、计算机可读存储介质，所述随机接入方法包括：检测到满足触发条件时，向锚点网络设备发送指示信息；所述指示信息用于指示所述锚点网络设备触发非锚点网络设备启动物理随机接入信道接收；向所述非锚点网络设备发送随机接入请求消息。采用上述方案，能够有效降低非锚点网络设备的静态能耗。

Description

随机接入方法及装置、计算机可读存储介质
本申请要求于2022年7月18日提交中国专利局、申请号为202210841423.0、发明名称为“随机接入方法及装置、计算机可读存储介质”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
本发明涉及无线通信技术领域，尤其涉及一种随机接入方法及装置、计算机可读存储介质。
背景技术
随着5G技术的进一步演进，提升网络能效成了当前热门的研究课题。网络设备能耗在网络能耗中占比较高，如何提高网络设备的能效是急需解决的问题。
在当前网络中，为了保证终端设备的用户体验，网络设备通常处于工作状态或者半睡眠状态，难以完全关闭或者进入深度睡眠模式。网络设备的能耗主要包括两个部分：静态功耗和动态功耗。静态功耗主要包括静态接收功耗以及静态发送功耗静态接收功耗主要包含网络在配置的随机接入资源上接收随机接入请求消息(Msg1)，静态发送功耗主要包括同步信号块的发送、寻呼消息的发送、系统信息的发送等。
现有技术中，网络设备的静态能耗较高。
发明内容
本发明实施例解决的是网络设备的静态能耗较高的技术问题。
为解决上述技术问题，本发明实施例提供一种随机接入方法，应用于终端设备，包括：检测到满足触发条件或者接收到触发指示时，向锚点网络设备发送指示信息；所述指示信息用于指示所述锚点网络设备触发非锚点网络设备启动物理随机接入信道接收；向所述非锚点网络设备发送随机接入请求消息。
可选的，所述向锚点网络设备发送指示信息，包括：向所述锚点网络设备发送第一随机接入前导码，所述第一随机接入前导码承载所述指示信息。
可选的，所述向所述锚点网络设备发送第一随机接入前导码，包括：采用锚点载波上配置的第一随机接入时机，向所述锚点网络设备发送所述第一随机接入前导码。
可选的，在向所述锚点网络设备发送特定的随机接入前导码之前，还包括：获取所述锚点网络设备发送的系统消息；从所述系统消息中获取所述特定的随机接入前导码。
可选的，在向所述锚点网络设备发送第一随机接入前导码之前，还包括：获取所述锚点网络设备发送的系统消息；从所述系统消息中获取所述第一随机接入前导码的配置信息。
可选的，所述第一随机接入前导码的配置信息包括：所述第一随机接入前导码的索引范围；或者，所述第一随机接入前导码的索引号集合。
可选的，所述获取所述锚点网络设备发送的系统消息，包括：在锚点载波上，接收所述锚点网络设备发送的系统消息。
可选的，所述随机接入方法还包括：获取所述第一随机接入前导码与锚点同步信号块之间的关联关系；所述锚点同步信号块为锚点载波同步信号块或锚点小区同步信号块。
可选的，所述向所述锚点网络设备发送第一随机接入前导码，包括：根据所述锚点同步信号块对应的测量结果，确定目标锚点同步信号块；从所述第一随机接入前导码中，选择与所述目标锚点同步信号块对应的目标随机接入前导码；向所述锚点网络设备发送所述目标随机接入前导码。
可选的，所述根据所述锚点同步信号块对应的测量结果，确定目标锚点同步信号块，包括：根据所述锚点同步信号块的信号质量，选择信号质量最大的前K个锚点同步信号块作为所述目标锚点同步信号块；1≤K≤M，M为所述锚点同步信号块的总个数。
可选的，所述向锚点网络设备发送指示信息，包括：利用周期性上行资源，向所述锚点网络设备发送所述指示信息。
可选的，利用周期性上行资源，向所述锚点网络设备发送所述指示信息之前，还包括：获取所述锚点网络设备发送的系统消息；从所述系统消息中获取所述周期性上行资源的配置信息。
可选的，所述周期性上行资源的配置信息为第二随机接入时机的配置信息，所述第二随机接入时机用于发送所述指示信息，所述第二随机接入时机为部分用于发送所述随机接入请求消息的随机接入时机。
可选的，所述利用周期性上行资源，向所述锚点网络设备发送所述指示信息，包括：利用所述第二随机接入时机发送第二随机接入前导码，所述指示信息承载于所述第二随机接入前导码，所述第二随机接入前导码为任意进行随机接入的随机接入前导码。
可选的，所述随机接入方法还包括：获取所述周期性上行资源与锚点同步信号块之间的关联关系；所述锚点同步信号块为锚点载波同步信号块或锚点小区同步信号块。
可选的，所述利用周期性上行资源，向所述锚点网络设备发送所述指示信息，包括：根据所述锚点同步信号块对应的测量结果，确定 目标锚点同步信号块；从所述周期性上行资源中，选择与所述目标锚点同步信号块对应的目标上行资源；利用所述目标上行资源，向所述锚点网络设备发送所述指示信息。
可选的，所述根据所述锚点同步信号块对应的测量结果，确定目标锚点同步信号块，包括：根据所述锚点同步信号块的信号质量，选择信号质量最大的前K个锚点同步信号块作为所述目标锚点同步信号块；1≤K≤M，M为所述锚点同步信号块的总个数。
可选的，所述触发条件包括：在锚点载波上连续N次随机接入失败。
可选的，所述接收到触发指示，包括：通过接收寻呼下行控制信息获取所述触发指示；或，通过接收寻呼提前指示获取所述触发指示；或，通过接收寻呼消息获取所述触发指示。
可选的，所述向所述非锚点网络设备发送随机接入请求消息，包括：采用用于发送随机接入请求消息的随机接入资源，向所述非锚点网络设备发送所述随机接入请求消息。
可选的，所述向所述非锚点网络设备发送随机接入请求消息，包括：在向所述锚点网络设备发送指示信息后，推迟X个时间单元，向所述非锚点网络设备发送所述随机接入请求消息。
本发明实施例还提供了另一种随机接入方法，包括：接收指示信息；所述指示信息用于指示所述锚点网络设备触发非锚点网络设备启动物理随机接入信道接收；触发非锚点网络设备启动物理随机接入信道接收。
可选的，所述触发非锚点网络设备启动物理随机接入信道接收，包括：通过Xn接口触发覆盖范围内的所有非锚点网络设备启动物理随机接入信道接收。
可选的，所述随机接入方法还包括：发送系统消息，所述系统消息包括以下任一种：第一随机接入前导码的配置信息；周期性上行资 源的配置信息。
可选的，所述发送系统消息，包括：在锚点载波上，发送所述系统消息。
可选的，所述随机接入方法还包括：发送所述第一随机接入前导码与锚点同步信号块之间的关联关系；或，发送所述周期性上行资源与锚点同步信号块之间的关联关系；所述锚点同步信号块为锚点载波同步信号块或锚点小区同步信号块。
本发明实施例还提供了一种随机接入装置，应用于终端设备，包括：第一发送单元，用于检测到满足触发条件或者接收到触发指示时，向锚点网络设备发送指示信息；所述指示信息用于指示所述锚点网络设备触发非锚点网络设备启动物理随机接入信道接收；第二发送单元，用于向所述非锚点网络设备发送随机接入请求消息。
本发明实施例还提供了另一种随机接入装置，应用于非锚点网络设备，包括：接收单元，用于接收指示信息；所述指示信息用于指示所述锚点网络设备触发非锚点网络设备启动物理随机接入信道接收；触发单元，用于触发非锚点网络设备启动物理随机接入信道接收。
本发明实施例还提供了一种计算机可读存储介质，所述计算机可读存储介质为非易失性存储介质或非瞬态存储介质，其上存储有计算机程序，所述计算机程序被处理器运行时执行上述任一种所述的随机接入方法的步骤。
本发明实施例还提供了另一种随机接入装置，包括存储器和处理器，所述存储器上存储有可在所述处理器上运行的计算机程序，所述处理器运行所述计算机程序时执行上述任一种所述的随机接入方法的步骤。
与现有技术相比，本发明实施例的技术方案具有以下有益效果：
当检测到满足触发条件或者接收到触发指示时，终端设备向锚点网络设备发送指示信息。锚点网络设备在接收到指示信息之后，触发 非锚点网络设备启动物理随机接入信道接收。之后，终端设备向非锚点网络设备发送随机接入请求消息，以接入非锚点网络设备。由于非锚点网络设备在被触发之后才启动物理随机接入信道接收，故可以有效降低非锚点网络设备的功耗。
附图说明
图1是本发明实施例中的一种随机接入方法的流程图；
图2是现有的一种通信场景示意图；
图3是本发明实施例中的另一种随机接入方法的流程图；
图4是本发明实施例中的一种随机接入装置的结构示意图；
图5是本发明实施例中的另一种随机接入装置的结构示意图。
具体实施方式
网络节能(network energy savings，network power saving)是移动运营商和设备商比较关心的问题。网络节能对降低运营成本和绿色环保都是很有好处的。在5G网络中，由于频谱资源较多，如1GHz、2GHz、4GHz、6GHz和26GHz等频带(band)，在网络负载较低时，一些频带(例如4GHz、6GHz或26GHz等)对应的载波(carrier)或小区(cell)可以尽量关闭，并按需打开，来达到网络节能的目的。
也就是说，网络负载较低时，一些载波或小区不需要承载数据。一般来说，通过某些载波的开关可以达到网络节能的目的，但这一般是需要在网络负载较低时才能实现。
对于能够按需开启的载波或小区，可以称为非锚点载波(non-anchor carrier)或非锚点小区(non-anchor cell)。相对地，不关闭的载波或小区可以称为锚点载波(anchor carrier)或锚点小区(non-anchor cell)。通常来说，非锚点小区部署在锚点小区覆盖区域 之内，锚点载波提供大范围的覆盖，而非锚点载波覆盖范围较小并提供高速数据传输服务，非锚点载波受网络控制的，可以按需打开的，如下图2所示。参照图2，给出了现有的一种通信场景示意图。图2中，锚点小区的覆盖范围内存在多个非锚点小区。
在现有的通信系统中，对于网络设备而言，需要在配置的RO(PRACH Ocassion)资源上不停的检测终端设备发送的随机接入请求消息(Msg1)，以保证能够及时地收到终端设备发送的随机接入请求消息(Msg1)。在网络负载较低的情况下，网络设备需在配置的RO资源上不停的检测终端设备发送的Msg1，导致网络设备的功耗较高。
在本发明实施例中，当检测到满足触发条件或者接收到触发指示时，终端设备向锚点网络设备发送指示信息。锚点网络设备在接收到指示信息之后，触发非锚点网络设备启动物理随机接入信道接收。之后，终端设备向非锚点网络设备发送随机接入请求消息，以接入非锚点网络设备。由于非锚点网络设备在被触发之后才启动物理随机接入信道接收，故可以有效降低非锚点网络设备的功耗。
为使本发明的上述目的、特征和有益效果能够更为明显易懂，下面结合附图对本发明的具体实施例做详细的说明。
首先，对本申请实施例涉及的部分名词进行解释，以便于本领域技术人员理解。
1、终端设备。本发明实施例的终端设备是一种具有无线通信功能的设备，可以称为终端(terminal)、用户设备(user equipment，UE)、移动台(mobile station，MS)、移动终端(mobile terminal，MT)、接入终端设备、车载终端设备、工业控制终端设备、UE单元、UE站、移动站、远方站、远程终端设备、移动设备、UE终端设备、无线通信设备、UE代理或UE装置等。终端设备可以是固定的或者移动的。需要说明的是，终端设备可以支持至少一种无线通信技术，例如LTE、新空口(new radio，NR)等。例如，终端设备可以是手机(mobile phone)、 平板电脑(pad)、台式机、笔记本电脑、一体机、车载终端、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、无人驾驶(self driving)中的无线终端、远程手术(remote medical surgery)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、可穿戴设备、未来移动通信网络中的终端设备或者未来演进的公共移动陆地网络(public land mobile network，PLMN)中的终端设备等。在本申请的一些实施例中，终端设备还可以是具有收发功能的装置，例如芯片系统。其中，芯片系统可以包括芯片，还可以包括其它分立器件。
2、网络设备。本发明实施例中，网络设备是一种为终端提供无线通信功能的设备，也可称之为无线接入网(radio access network，RAN)设备、或接入网网元等。其中，网络设备可以支持至少一种无线通信技术，例如LTE、NR等。示例的，网络设备包括但不限于：第五代移动通信系统(5th-generation，5G)中的下一代基站(generation nodeB，gNB)、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)、基站接收台(base transceiver station，BTS)、家庭基站(例如，home evolved node B、或home node B，HNB)、基带单元(baseband unit，BBU)、接收点(transmitting and receiving point，TRP)、发射点(transmitting point，TP)、移动交换中心等。网络设备还可以是云无线接入网络(cloud radio access network，CRAN)场景下的无线控制器、集中单元(centralized unit，CU)、和/或分布单元(distributed unit，DU)，或者网络设备可以为中继站、接入点、车载设备、终端设备、可穿戴设备以及未来移动通信中的接入网设备或 者未来演进的PLMN中的接入网设备等。在一些实施例中，网络设备还可以为具有为终端设备提供无线通信功能的装置，例如芯片系统。示例的，芯片系统可以包括芯片，还可以包括其它分立器件。
在一些实施例中，接入网设备还可以与互联网协议(Internet Protocol，IP)网络进行通信，例如因特网(internet)，私有的IP网，或其他数据网等。
本发明实施例提供了一种随机接入方法，参照图1，以下通过具体步骤进行详细说明。
在本发明实施例中，下述步骤101～步骤102对应的随机接入方法可以由终端设备中具有数据处理能力的芯片所执行，或者由终端设备中包括上述具有数据处理能力的芯片的芯片模组所执行。以下以终端设备为执行主体为例进行介绍。
步骤101，检测到满足触发条件或接收到触发指示时，向锚点网络设备发送指示信息。
在本发明实施例中，指示信息可以用于指示锚点网络设备触发非锚点网络设备启动物理随机接入信道(Physical Random Access Channel，PRACH)接收。
也就是说，锚点网络设备在接收到指示信息之后，可以触发非锚点网络设备启动PRACH接收。
在具体实施中，非锚点网络设备可以为非锚点小区或非锚点载波对应的网络设备，锚点网络设备可以为锚点小区或锚点载波对应的网络设备。通常而言，锚点载波或者锚点小区可以提供大范围的覆盖，非锚点载波或者非锚点小区能够提供高速的数据传输，非锚点载波或者非锚点小区的覆盖区域通常小于非锚点载波或非锚点小区的覆盖范围。非锚点载波或者非锚点小区的覆盖区域，可以在锚点载波或者锚点小区的覆盖区域之内。
在具体实施中，锚点网络设备可以通过网络设备之间的接口(例 如Xn接口)，与非锚点网络设备进行交互。锚点网络设备可以触发其覆盖范围内所有的非锚点网络设备启动PRACH接收。
也就是说，若一个锚点网络设备的覆盖范围内存在多个非锚点网络设备，则该锚点网络设备可以触发上述的多个非锚点网络设备均启动PRACH接收。
在本发明实施例中，终端设备满足触发条件，可以是指终端设备在锚点载波上连续N次随机接入失败，N≥2。也就是说，当终端设备在锚点载波上连续多次随机接入失败，则可以确定终端设备满足触发条件。终端设备在检测到满足触发条件后，即可向非锚点网络设备发送指示信息。
在本发明实施例中，触发指示可以用于指示终端设备向非锚点网络设备发送指示信息。触发指示还可以用于指示终端设备通过非锚点载波进行随机接入。
在具体实施中，触发指示可以承载在寻呼消息中，终端设备在锚点载波上接收到承载触发指示的寻呼消息，即可确定接收到触发指示。终端设备在接收到触发指示后，也可以向非锚点网络设备发送指示信息。
在具体实施中，触发指示也可以承载在寻呼下行控制信息(Paging DCI)中。终端设备在锚点载波上接收到Paging DCI，从Paging DCI中获取触发指示。
具体地，在Paging DCI中，可以设置专用比特域，通过专用比特域的取值来表征触发指示，专用比特域的长度可以为1比特。
例如，终端设备接收到Paging DCI中，检测到Paging DCI中专用比特域的取值为1，则确定接收到触发指示。
在具体实施中，触发指示也可以承载在寻呼提前指示(Paging massage)中。终端设备在锚点载波上接收到Paging massage，从Paging massage中获取触发指示。
具体地，在Paging massage中，可以设置专用比特域，通过专用比特域的取值来表征触发指示，专用比特域的长度可以为1比特。
例如，终端设备接收到Paging massage中，检测到Paging massage中专用比特域的取值为1，则确定接收到触发指示。
可以理解的是，在上述实施例中，Paging DCI或Paging massage中专用比特域的长度也可以为2比特或者更多个比特。将专用比特域的长度设置为1比特，可以节省下行开销，提高资源利用效率。
相应地，表征存在触发指示的专用比特域的取值也可以为其他值。例如，专用比特域的长度为1比特，则也可设定专用比特域的取值为0时，表征存在触发指示。
在具体实施中，终端设备向锚点网络设备发送的指示信息，可以由第一随机接入前导码(preamble)所承载。换言之，终端设备向锚点网络设备发送的指示信息，可以由第一随机接入前导码所表征。当锚点网络设备接收到第一随机接入前导码时，即可确定接收到指示信息。
在本发明实施例中，第一随机接入前导码的个数可以为一个或多个。终端设备可以采用锚点载波上配置的第一随机接入时机(RO)，向锚点网络设备发送第一随机接入前导码。
锚点网络设备(也即为锚点小区对应的网络设备)可以为终端设备配置一个或者多个第一随机接入前导码。锚点网络设备可以向终端设备发送系统消息，在系统消息中承载所配置的第一随机接入前导码的配置信息。锚点网络设备可以在锚点载波上向终端设备发送系统消息。
终端设备可以在锚点载波上接收锚点网络设备发送的系统消息，从中获取锚点网络设备所配置的一个或多个第一随机接入前导码的配置信息。
在具体实施中，第一随机接入前导码的配置信息可以包括第一随 机接入前导码的索引地址范围；或者，第一随机接入前导码的配置信息可以包括第一随机接入前导码的索引号集合。
可见，第一随机接入前导码的配置信息，实质上可以用于指示哪些随机接入前导码为第一随机接入前导码。
例如，第一随机接入前导码的配置信息包括索引号集合{1，2}，则确定随机接入前导码1、随机接入前导码2为第一随机接入前导码。
在具体实施中，锚点网络设备可以从竞争随机接入前导码子集中选取第一随机接入前导码，也可以从非竞争随机接入前导码子集中选取第一随机接入前导码。
锚点网络设备可以随机从竞争随机接入前导码子集或非竞争随机接入前导码子集中选取第一随机接入前导码，也可以根据预设的选取规则从竞争随机接入前导码子集或非竞争随机接入前导码子集中选取第一随机接入前导码。
例如，锚点网络设备从竞争随机接入前导码子集中，随机选取2个随机接入前导码，分别为随机接入前导码1和随机接入前导码3，则随机接入前导码1与随机接入前导码3即为上述的第一随机接入前导码。
又如，锚点网络设备从非竞争随机接入前导码子集中，按照预设的规则选取2个随机接入前导码，分别为随机接入前导码2和随机接入前导码4，则随机接入前导码2与随机接入前导码4即为上述的第一随机接入前导码。
在具体实施中，终端设备也可以在周期性上行资源上，向锚点网络设备发送指示信息。锚点网络设备可以为终端设备配置周期性上行资源的配置信息，在锚点载波上通过系统消息将周期性上行资源的配置信息发送给终端设备。终端设备在锚点载波上接收系统消息，从而获取锚点载波上的周期性上行资源的配置信息，进而确定周期性上行资源。
在本发明实施例中，锚点载波上的周期性上行资源可以包括第二随机接入时机，第二随机接入时机用于发送指示信息。此时，周期性上行资源的配置信息即为第二随机接入时机的配置信息。
在本发明实施例中，指示信息可以承载于第二随机接入前导码，或者承载于其他类型的序列。
在本发明实施例中，对于随机接入时机(RO)而言，RO的配置信息可以包括RO的周期、一个PRACH周期内时域上的RO个数、频率上复用的RO个数(msg1-FDM)，以及，RO关联的同步信号块(ssb-perRACH-occasion)等。
当终端设备检测到满足触发条件或接收到触发指示时，终端设备可以利用第二随机接入时机，向锚点网络设备发送指示信息。锚点网络设备在接收到第二随机接入时机承载的第二随机接入前导码后，触发非锚点网络设备启动RACH接收。
步骤102，向非锚点网络设备发送随机接入请求消息。
在具体实施中，终端设备在利用锚点载波向锚点网络设备发送指示信息之后，可以利用非锚点载波上配置的用于发送随机接入请求消息的随机接入资源，发送随机接入请求消息(即Msg1)。
在本发明实施例中，用于发送随机接入请求消息的随机接入资源，可以包括用于发送随机接入请求的随机接入前导码以及随机接入时机。用于发送随机接入请求消息的随机接入资源，配置在非锚点载波上。第一随机接入前导码与第二随机接入时机，配置在锚点载波上。
也就是说，用于发送随机接入请求消息的随机接入前导码可以与上述的第一接入前导码不同；用于发送随机接入请求的随机接入时机可以与上述的第二随机接入时机不同。
在本发明实施例中，终端设备在利用锚点载波向锚点网络设备发送指示信息之后，也可以延迟X个时间单元，再利用非锚点载波上配置的用于发送随机接入请求消息的随机接入资源发送Msg1。时间 单元的单位可以为符号、时隙、ms等。X的取值可以由网络配置，或者为协议预先设定。
在具体实施中，非锚点网络设备在被锚点网络设备触发后，启动PRACH接收。非锚点网络设备启动RRACH接收可能需要一段时间，期间非锚点网络设备不会接收终端设备发送的随机接入请求消息。若终端设备在发送完指示信息之后，立即发送随机接入请求消息，则会导致终端设备发送的随机接入请求消息不被非锚点网络设备接收，造成功耗的浪费。
而在本发明实施例中，通过延迟X个时间单元发送随机接入请求消息，确保非锚点网络设备能够接收到终端设备发送的随机接入请求消息，避免终端设备功耗的浪费。
综上可见，在本发明实施例中，当检测到满足触发条件或接收到触发指示时，终端设备向锚点网络设备发送指示信息。锚点网络设备在接收到指示信息之后，触发非锚点网络设备启动物理随机接入信道接收。之后，终端设备向非锚点网络设备发送随机接入请求消息，以接入非锚点网络设备。由于非锚点网络设备在被触发之后才启动物理随机接入信道接收，故可以有效降低非锚点网络设备的功耗。
在具体实施中，考虑到锚点载波/锚点小区多波束的应用场景，锚点网络设备还可以配置每个第一随机接入前导码与锚点同步信号块的关联关系。锚点同步信号块可以为锚点载波上传输的同步信号块或锚点小区传输的同步信号块。
终端设备可以根据锚点同步信号块对应的测量结果，确定目标锚点同步信号块，之后，从第一随机接入前导码中，选择与目标锚点同步信号块对应的目标随机接入前导码。也就是说，目标随机接入前导码可以是从第一随机接入前导码中选取的，且目标随机接入前导码的个数不大于第一随机接入前导码的个数。
在具体实施中，终端设备可以向锚点网络设备发送目标随机接入 前导码。
此时，终端设备向锚点网络设备发送的指示信息，即由目标随机接入前导码所承载。换言之，终端设备向锚点网络设备发送的指示信息，可以由目标随机接入前导码所表征。当锚点网络设备接收到目标随机接入前导码时，即可确定接收到指示信息。
换言之，终端设备向锚点网络设备发送的指示信息，可以由目标随机接入前导码所表征。当锚点网络设备接收到目标随机接入前导码时，即可确定接收到指示信息。
在具体实施中，可以根据锚点同步信号块的信号质量，选择信号质量最大的前K个锚点同步信号块作为目标锚点同步信号块，1≤K≤M，M为锚点同步信号块的总个数。
在具体实施中，锚点网络设备可以直接配置每个第一随机接入前导码与同步信号块之间的关联关系。
例如，锚点载波上传输4个同步信号块，依次为SSB1、SSB2、SSB3以及SSB4，锚点网络设备通过系统信息指定锚点载波对应的第一随机接入前导码为{Preamble1，Preamble2}，Preamble1对应SSB1与SSB2，preamble2对应SSB3与SSB4。当终端设备在锚点载波上连续随机接入失败的次数大于N，或者接收到触发指示，则根据锚点载波上SSB信号质量(RSRP/RSRQ)的测量结果，确定目标SSB。
设定SSB1对应的信道质量最好，则终端设备根据SSB与Preamble的关联关系，确定目标随机接入前导码为SSB1对应的Preamble1。终端设备向锚点网络设备发送Preamble1，Preamble1用于指示锚点网络设备触发非锚点网络设备启动PRACH接收。
锚点网络设备也可以配置第一随机接入前导码与同步信号块的映射率，终端设备可以根据映射率，按照预设的规则将第一随机接入前导码与同步信号块进行关联。
例如，锚点载波上传输4个同步信号块，依次为SSB1、SSB2、 SSB3以及SSB4。锚点网络设备配置映射率为2，也即一个第一随机接入前导码对应两个SSB。终端设备在将第一随机接入前导码与同步信号块进行关联时，可以按照SSB索引号升序的方式，将Preamble1与SSB1、SSB2关联，将Preamble2与SSB3、SSB4关联。
在具体实施中，锚点网络设备还可以配置周期性上行资源与锚点同步信号块的关联关系。
终端设备可以根据锚点同步信号块对应的测量结果，确定目标锚点同步信号块，之后，从周期性上行资源中，选择与目标锚点同步信号块对应的目标上行资源。终端设备可以利用目标上行资源向锚点网络设备发送指示信息。
也就是说，目标上行资源可以是从周期性上行资源中选取的，且目标上行资源的个数不大于周期性上行资源的个数。
此时，终端设备向锚点网络设备发送的指示信息，即由目标上行资源所承载。换言之，终端设备向锚点网络设备发送的指示信息，可以由目标上行资源所表征。当锚点网络设备接收到目标上行资源时，即可确定接收到指示信息。
在具体实施中，可以根据锚点同步信号块的信号质量，选择信号质量最大的前K个锚点同步信号块作为目标锚点同步信号块，1≤K≤M，M为锚点同步信号块的总个数。
在具体实施中，锚点网络设备可以直接配置每个周期性上行资源与同步信号块之间的关联关系。
例如，锚点载波上传输4个同步信号块，依次为SSB1、SSB2、SSB3以及SSB4，锚点网络设备通过系统信息指定锚点载波对应的周期性上行资源1与SSB1、SSB2关联，周期性上行资源2与SSB3、SSB4关联。
当终端设备在锚点载波上连续随机接入失败的次数大于N，或者接收到触发指示，则根据锚点载波上SSB信号质量(RSRP/RSRQ) 的测量结果，确定目标SSB。
设定SSB1对应的信道质量最好，则终端设备根据SSB与周期性上行资源的关联关系，确定目标上行资源为周期性上行资源1。终端设备通过周期性上行资源1向锚点网络设备发送指示信息。
锚点网络设备也可以配置周期性上行资源与同步信号块的映射率，终端设备可以根据映射率，按照预设的规则将周期性上行资源与同步信号块进行关联。
例如，锚点载波上传输4个同步信号块，依次为SSB1、SSB2、SSB3以及SSB4。锚点网络设备配置映射率为2，也即一个周期性上行资源对应两个SSB。终端设备在将周期性上行资源与同步信号块进行关联时，可以按照SSB索引号升序的方式，将周期性上行资源1与SSB1、SSB2关联，将周期性上行资源2与SSB3、SSB4关联。
参照图3，给出了本发明实施例中的另一种随机接入方法，以下通过具体步骤进行详细说明。
在本发明实施例中，下述步骤301～步骤302对应的随机接入方法可以由锚点网络设备中具有数据处理能力的芯片所执行，或者由锚点网络设备中包括上述具有数据处理能力的芯片的芯片模组所执行。以下以锚点网络设备为执行主体为例进行介绍。
步骤301，接收指示信息。
在具体实施中，终端设备在检测到满足触发条件或接收到触发指示时，可以向锚点网络设备发送指示信息。指示信息可以用于指示锚点网络设备触发非锚点网络设备启动PRACH接收。
在具体实施中，终端设备所满足的触发条件，或者终端设备接收到触发指示的具体形式，可以对应参照上述实施例，此处不做赘述。
在具体实施中，终端设备向锚点网络设备发送的指示信息，可以由第一随机接入前导码(preamble)所承载。换言之，终端设备向锚 点网络设备发送的指示信息，可以由第一随机接入前导码所表征。当锚点网络设备接收到第一随机接入前导码时，即可确定接收到指示信息。
在本发明实施例中，第一随机接入前导码的个数可以为一个或多个。终端设备可以采用锚点载波上配置的第一随机接入时机(RO)，向锚点网络设备发送第一随机接入前导码。
锚点网络设备(也即为锚点小区对应的网络设备)可以为终端设备配置一个或者多个第一随机接入前导码。锚点网络设备可以向终端设备发送系统消息，在系统消息中承载所配置的第一随机接入前导码的配置信息。锚点网络设备可以在锚点载波上向终端设备发送系统消息。
终端设备可以在锚点载波上接收锚点网络设备发送的系统消息，从中获取锚点网络设备所配置的一个或多个第一随机接入前导码的配置信息。
在具体实施中，第一随机接入前导码的配置信息可以包括第一随机接入前导码的索引地址范围；或者，第一随机接入前导码的配置信息可以包括第一随机接入前导码的索引号集合。
在具体实施中，锚点网络设备可以从竞争随机接入前导码子集中选取第一随机接入前导码，也可以从非竞争随机接入前导码子集中选取第一随机接入前导码。
锚点网络设备可以随机从竞争随机接入前导码子集或非竞争随机接入前导码子集中选取第一随机接入前导码，也可以根据预设的选取规则从竞争随机接入前导码子集或非竞争随机接入前导码子集中选取第一随机接入前导码。
在本发明实施例中，锚点网络设备还可以配置每个第一随机接入前导码与锚点同步信号块的关联关系。终端设备根据锚点同步信号块对应的测量结果，从第一随机接入前导码中选择目标随机接入前导 码，由目标随机接入前导码承载指示信息。
锚点网络设备还可以配置周期性上行资源与锚点同步信号块的关联关系。终端设备根据锚点同步信号块对应的测量结果，从周期性上行资源中选择目标上行资源，在目标上行资源上发送指示信息。
步骤302，触发非锚点网络设备启动物理随机接入信道接收。
在本发明实施例中，锚点网络设备在接收到指示信息之后，可以触发非锚点网络设备启动PRACH接收。
在具体实施中，锚点网络设备可以通过网络设备之间的接口(例如Xn接口)，与非锚点网络设备进行交互。锚点网络设备可以触发其覆盖范围内所有的非锚点网络设备启动PRACH接收。
也就是说，若一个锚点网络设备的覆盖范围内存在多个非锚点网络设备，则该锚点网络设备可以触发上述的多个非锚点网络设备均启动PRACH接收。
由此可见，由于非锚点网络设备在被触发之后才启动PRACH接收，故可以有效降低非锚点网络设备的功耗。
参照图4，给出了本发明实施例中的一种随机接入装置40，包括：第一发送单元401以及第二发送单元402，其中：
第一发送单元401，用于检测到满足触发条件或者接收到触发指示时，向锚点网络设备发送指示信息；所述指示信息用于指示所述锚点网络设备触发非锚点网络设备启动物理随机接入信道接收；
第二发送单元402，用于向所述非锚点网络设备发送随机接入请求消息。
在具体实施中，上述第一发送单元401以及第二发送单元402的具体执行过程可以对应参照步骤101～步骤102，此处不做赘述。
在具体实施中，上述的随机接入装置40可以对应于终端设备中具有数据处理功能的芯片；或者对应于终端设备中包括具有数据处理 功能的芯片的芯片模组，或者对应于终端设备。
参照图5，给出了本发明实施例中的另一种随机接入装置50，包括：接收单元501以及触发单元502，其中：
接收单元501，用于接收指示信息；所述指示信息用于指示所述锚点网络设备触发非锚点网络设备启动物理随机接入信道接收；
触发单元502，用于触发非锚点网络设备启动物理随机接入信道接收。
在具体实施中，上述接收单元501以及触发单元502的具体执行过程可以对应参照步骤301～步骤302，此处不做赘述。
在具体实施中，上述的随机接入装置50可以对应于网络设备中具有数据处理功能的芯片；或者对应于网络设备中包括具有数据处理功能的芯片的芯片模组，或者对应于网络设备。
在具体实施中，关于上述实施例中描述的各个装置、产品包含的各个模块/单元，其可以是软件模块/单元，也可以是硬件模块/单元，或者也可以部分是软件模块/单元，部分是硬件模块/单元。
例如，对于应用于或集成于芯片的各个装置、产品，其包含的各个模块/单元可以都采用电路等硬件的方式实现，或者，至少部分模块/单元可以采用软件程序的方式实现，该软件程序运行于芯片内部集成的处理器，剩余的(如果有)部分模块/单元可以采用电路等硬件方式实现；对于应用于或集成于芯片模组的各个装置、产品，其包含的各个模块/单元可以都采用电路等硬件的方式实现，不同的模块/单元可以位于芯片模组的同一组件(例如芯片、电路模块等)或者不同组件中，或者，至少部分模块/单元可以采用软件程序的方式实现，该软件程序运行于芯片模组内部集成的处理器，剩余的(如果有)部分模块/单元可以采用电路等硬件方式实现；对于应用于或集成于终端的各个装置、产品，其包含的各个模块/单元可以都采用电路等硬件的方式实现，不同的模块/单元可以位于终端内同一组件(例如， 芯片、电路模块等)或者不同组件中，或者，至少部分模块/单元可以采用软件程序的方式实现，该软件程序运行于终端内部集成的处理器，剩余的(如果有)部分模块/单元可以采用电路等硬件方式实现。
本发明实施例还提供了一种计算机可读存储介质，所述计算机可读存储介质为非易失性存储介质或非瞬态存储介质，其上存储有计算机程序，所述计算机程序被处理器运行时执行步骤101～步骤102所提供的随机接入方法的步骤，或者执行步骤301～步骤302所提供的随机接入方法的步骤。
本发明实施例还提供了一种随机接入装置，包括存储器和处理器，所述存储器上存储有可在所述处理器上运行的计算机程序，所述处理器运行所述计算机程序时执行步骤101～步骤102所提供的随机接入方法的步骤，或者执行步骤301～步骤302所提供的随机接入方法的步骤。
本领域普通技术人员可以理解上述实施例的各种方法中的全部或部分步骤是可以通过程序来指示相关的硬件来完成，该程序可以存储于一计算机可读存储介质中，存储介质可以包括：ROM、RAM、磁盘或光盘等。
虽然本发明披露如上，但本发明并非限定于此。任何本领域技术人员，在不脱离本发明的精神和范围内，均可作各种更动与修改，因此本发明的保护范围应当以权利要求所限定的范围为准。

Claims (29)

  1. 一种随机接入方法，应用于终端设备，其特征在于，包括：
    检测到满足触发条件或者接收到触发指示时，向锚点网络设备发送指示信息；所述指示信息用于指示所述锚点网络设备触发非锚点网络设备启动物理随机接入信道接收；
    向所述非锚点网络设备发送随机接入请求消息。
  2. 如权利要求1所述的随机接入方法，其特征在于，所述向锚点网络设备发送指示信息，包括：
    向所述锚点网络设备发送第一随机接入前导码，所述第一随机接入前导码承载所述指示信息。
  3. 如权利要求2所述的随机接入方法，其特征在于，所述向所述锚点网络设备发送第一随机接入前导码，包括：
    采用锚点载波上配置的第一随机接入时机，向所述锚点网络设备发送所述第一随机接入前导码。
  4. 如权利要求2所述的随机接入方法，其特征在于，在向所述锚点网络设备发送第一随机接入前导码之前，还包括：
    获取所述锚点网络设备发送的系统消息；
    从所述系统消息中获取所述第一随机接入前导码的配置信息。
  5. 如权利要求4所述的随机接入方法，其特征在于，所述第一随机接入前导码的配置信息包括：所述第一随机接入前导码的索引范围；或者，所述第一随机接入前导码的索引号集合。
  6. 如权利要求4所述的随机接入方法，其特征在于，所述获取所述锚点网络设备发送的系统消息，包括：
    在锚点载波上，接收所述锚点网络设备发送的系统消息。
  7. 如权利要求2所述的随机接入方法，其特征在于，还包括：获取 所述第一随机接入前导码与锚点同步信号块之间的关联关系；所述锚点同步信号块为锚点载波上传输的同步信号块或锚点小区传输的同步信号块。
  8. 如权利要求7所述的随机接入方法，其特征在于，所述向锚点网络设备发送指示信息，包括：
    根据所述锚点同步信号块对应的测量结果，确定目标锚点同步信号块；
    从所述第一随机接入前导码中，选择与所述目标锚点同步信号块对应的目标随机接入前导码；
    向所述锚点网络设备发送所述目标随机接入前导码。
  9. 如权利要求8所述的随机接入方法，其特征在于，所述根据所述锚点同步信号块对应的测量结果，确定目标锚点同步信号块，包括：根据所述锚点同步信号块的信号质量，选择信号质量最大的前K个锚点同步信号块作为所述目标锚点同步信号块；1≤K≤M，M为所述锚点同步信号块的总个数。
  10. 如权利要求1所述的随机接入方法，其特征在于，所述向锚点网络设备发送指示信息，包括：
    利用周期性上行资源，向所述锚点网络设备发送所述指示信息。
  11. 如权利要求10所述的随机接入方法，其特征在于，利用周期性上行资源，向所述锚点网络设备发送所述指示信息之前，还包括：
    获取所述锚点网络设备发送的系统消息；
    从所述系统消息中获取所述周期性上行资源的配置信息。
  12. 如权利要求11所述的随机接入方法，其特征在于，所述周期性上行资源的配置信息为第二随机接入时机的配置信息，所述第二随机接入时机用于发送所述指示信息，所述第二随机接入时机为部分用于发 送所述随机接入请求消息的随机接入时机。
  13. 如权利要求12所述的随机接入方法，其特征在于，所述利用周期性上行资源，向所述锚点网络设备发送所述指示信息，包括：
    利用所述第二随机接入时机发送第二随机接入前导码，所述指示信息承载于所述第二随机接入前导码，所述第二随机接入前导码为任意进行随机接入的随机接入前导码。
  14. 如权利要求10所述的随机接入方法，其特征在于，还包括：获取所述周期性上行资源与锚点同步信号块之间的关联关系；所述锚点同步信号块为锚点载波上传输的同步信号块或锚点小区传输的同步信号块。
  15. 如权利要求14所述的随机接入方法，其特征在于，所述利用周期性上行资源，向所述锚点网络设备发送所述指示信息，包括：
    根据所述锚点同步信号块对应的测量结果，确定目标锚点同步信号块；
    从所述周期性上行资源中，选择与所述目标锚点同步信号块对应的目标上行资源；
    利用所述目标上行资源，向所述锚点网络设备发送所述指示信息。
  16. 如权利要求15所述的随机接入方法，其特征在于，所述根据所述锚点同步信号块对应的测量结果，确定目标锚点同步信号块，包括：根据所述锚点同步信号块的信号质量，选择信号质量最大的前K个锚点同步信号块作为所述目标锚点同步信号块；1≤K≤M，M为所述锚点同步信号块的总个数。
  17. 如权利要求1所述的随机接入方法，其特征在于，所述触发条件包括：在锚点载波上连续N次随机接入失败。
  18. 如权利要求1所述的随机接入方法，其特征在于，所述接收到触发指示，包括：
    通过接收寻呼下行控制信息获取所述触发指示；或，
    通过接收寻呼提前指示获取所述触发指示；
    或，通过接收寻呼消息获取所述触发指示。
  19. 如权利要求1所述的随机接入方法，其特征在于，所述向所述非锚点网络设备发送随机接入请求消息，包括：
    采用用于发送随机接入请求消息的随机接入资源，向所述非锚点网络设备发送所述随机接入请求消息。
  20. 如权利要求19所述的随机接入方法，其特征在于，所述向所述非锚点网络设备发送随机接入请求消息，包括：
    在向所述锚点网络设备发送指示信息后，推迟X个时间单元，向所述非锚点网络设备发送所述随机接入请求消息。
  21. 一种随机接入方法，应用于网络设备，其特征在于，包括：
    接收指示信息；所述指示信息用于指示锚点网络设备触发非锚点网络设备启动物理随机接入信道接收；
    触发非锚点网络设备启动物理随机接入信道接收。
  22. 如权利要求21所述的随机接入方法，其特征在于，所述触发非锚点网络设备启动物理随机接入信道接收，包括：
    通过Xn接口触发覆盖范围内的所有非锚点网络设备启动物理随机接入信道接收。
  23. 如权利要求21所述的随机接入方法，其特征在于，还包括：
    发送系统消息，所述系统消息包括以下任一种：第一随机接入前导码的配置信息；周期性上行资源的配置信息。
  24. 如权利要求23所述的随机接入方法，其特征在于，所述发送系统消息，包括：
    在锚点载波上，发送所述系统消息。
  25. 如权利要求23所述的随机接入方法，其特征在于，还包括：
    发送所述第一随机接入前导码与锚点同步信号块之间的关联关系；或，发送所述周期性上行资源与锚点同步信号块之间的关联关系；所述锚点同步信号块为锚点载波同步信号块或锚点小区同步信号块。
  26. 一种随机接入装置，应用于终端设备，其特征在于，包括：
    第一发送单元，用于检测到满足触发条件或者接收到触发指示时，向锚点网络设备发送指示信息；所述指示信息用于指示所述锚点网络设备触发非锚点网络设备启动物理随机接入信道接收；
    第二发送单元，用于向所述非锚点网络设备发送随机接入请求消息。
  27. 一种随机接入装置，应用于网络设备，其特征在于，包括：
    接收单元，用于接收指示信息；所述指示信息用于指示锚点网络设备触发非锚点网络设备启动物理随机接入信道接收；
    触发单元，用于触发非锚点网络设备启动物理随机接入信道接收。
  28. 一种计算机可读存储介质，所述计算机可读存储介质为非易失性存储介质或非瞬态存储介质，其上存储有计算机程序，其特征在于，所述计算机程序被处理器运行时执行权利要求1～25任一项所述的随机接入方法的步骤。
  29. 一种随机接入装置，包括存储器和处理器，所述存储器上存储有可在所述处理器上运行的计算机程序，其特征在于，所述处理器运行所述计算机程序时执行权利要求1～20任一项所述的随机接入方法的步骤；或者，执行权利要求21～25任一项所述的随机接入方法的步骤。
PCT/CN2023/107677 2022-07-18 2023-07-17 随机接入方法及装置、计算机可读存储介质 WO2024017182A1 (zh)

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