WO2024021119A1 - 接入方法、装置、存储介质及芯片 - Google Patents

接入方法、装置、存储介质及芯片 Download PDF

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Publication number
WO2024021119A1
WO2024021119A1 PCT/CN2022/109243 CN2022109243W WO2024021119A1 WO 2024021119 A1 WO2024021119 A1 WO 2024021119A1 CN 2022109243 W CN2022109243 W CN 2022109243W WO 2024021119 A1 WO2024021119 A1 WO 2024021119A1
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Prior art keywords
access point
target
parameter
terminal device
condition information
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PCT/CN2022/109243
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English (en)
French (fr)
Inventor
杨星
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Beijing Xiaomi Mobile Software Co Ltd
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Beijing Xiaomi Mobile Software Co Ltd
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Application filed by Beijing Xiaomi Mobile Software Co Ltd filed Critical Beijing Xiaomi Mobile Software Co Ltd
Priority to EP22952565.4A priority Critical patent/EP4564982A4/en
Priority to CN202280002766.6A priority patent/CN115399058A/zh
Priority to PCT/CN2022/109243 priority patent/WO2024021119A1/zh
Priority to KR1020257006001A priority patent/KR20250038801A/ko
Priority to JP2025504187A priority patent/JP2025527171A/ja
Publication of WO2024021119A1 publication Critical patent/WO2024021119A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/08—Non-scheduled access, e.g. ALOHA
    • H04W74/0833—Random access procedures, e.g. with 4-step access
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/002—Transmission of channel access control information
    • H04W74/006—Transmission of channel access control information in the downlink, i.e. towards the terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0055—Transmission or use of information for re-establishing the radio link
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/08—Reselecting an access point
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/08—Non-scheduled access, e.g. ALOHA
    • H04W74/0866—Non-scheduled access, e.g. ALOHA using a dedicated channel for access
    • H04W74/0891—Non-scheduled access, e.g. ALOHA using a dedicated channel for access for synchronized access

Definitions

  • the present disclosure relates to the field of communication technology, specifically, to an access method, device, storage medium and chip.
  • the network device may send a handover command to the terminal device in response to the measurement report result sent by the terminal device, and the handover command may carry the configuration information of the target cell.
  • the terminal device can synchronize with the target cell, and then initiate a random access process (Radom Access Channel, RACH) to access the target cell.
  • RACH Random Access Channel
  • the terminal device can obtain the Timing Advance (TA) of the target cell and send a reconfiguration completion message to the target cell based on the TA to complete the handover.
  • TA Timing Advance
  • the terminal device switching process has a large delay, which will reduce the data transmission efficiency during the switching process.
  • the present disclosure provides an access method, device, storage medium and chip.
  • an access method is provided, where the method includes:
  • the candidate access point includes a target access point, and the access point is a cell and/or a beam;
  • an access method includes:
  • the candidate access point includes a target access point
  • an access device applied to terminal equipment, and the device includes:
  • the first determination module is configured to determine the first parameter corresponding to at least one candidate access point; wherein the candidate access point includes a target access point, and the access point is a cell and/or a beam;
  • a second determination module configured to determine the target timing advance TA used to access the target access point according to the first parameter
  • An access module configured to access the target access point according to the target TA.
  • an access device applied to network equipment, and the device includes:
  • the third determination module is configured to determine the first parameter corresponding to at least one candidate access point; the candidate access point includes the target access point;
  • the first sending module is configured to send a first message to the terminal device according to the first parameter; wherein the first message includes the first parameter; the first parameter is used to indicate that the terminal device is When preparing to access the target access point, determine the target timing advance TA used to access the target access point, and access the target access point according to the target TA; where the access point is a cell and/or beam.
  • an access device including:
  • Memory used to store instructions executable by the processor
  • the processor is configured to execute the steps of the access method provided by the first aspect of this disclosure.
  • an access device including:
  • Memory used to store instructions executable by the processor
  • the processor is configured to execute the steps of the access method provided in the second aspect of this disclosure.
  • a computer-readable storage medium on which computer program instructions are stored.
  • the steps of the access method provided by the first aspect of the present disclosure are implemented. .
  • a computer-readable storage medium on which computer program instructions are stored.
  • the steps of the access method provided by the second aspect of the present disclosure are implemented. .
  • a chip including: a processor and an interface; the processor is configured to read instructions to execute the steps of the access method provided in the first aspect of the present disclosure,
  • a chip including: a processor and an interface; the processor is configured to read instructions to execute the steps of the access method provided in the second aspect of the present disclosure.
  • the terminal device may determine the first parameter corresponding to at least one candidate access point, and determine the target timing advance TA used to access the target access point based on the first parameter, And access the target access point according to the target TA.
  • the candidate access point may include a target access point, and the access point may include a cell and/or a beam.
  • the terminal device can determine the target TA according to the first parameter, and access the target access point according to the target TA, thereby saving the time of determining the target TA through the random access process, reducing handover delay, and improving data transmission during the handover process. efficiency.
  • FIG. 1 is a schematic diagram of a communication system according to an exemplary embodiment.
  • Figure 2 is a flow chart of an access method according to an exemplary embodiment.
  • Figure 3 is a flow chart of an access method according to an exemplary embodiment.
  • Figure 4 is a flow chart of an access method according to an exemplary embodiment.
  • Figure 5 is a flow chart of an access method according to an exemplary embodiment.
  • Figure 6 is a flowchart of a method for a network device to determine a first parameter according to an exemplary embodiment.
  • Figure 7 is a flow chart of an access method according to an exemplary embodiment.
  • Figure 8 is a flow chart of an access method according to an exemplary embodiment.
  • Figure 9 is a block diagram of an access device according to an exemplary embodiment.
  • Figure 10 is a block diagram of an access device according to an exemplary embodiment.
  • Figure 11 is a block diagram of an access device according to an exemplary embodiment.
  • Figure 12 is a block diagram of an access device according to an exemplary embodiment.
  • Figure 13 is a block diagram of an access device according to an exemplary embodiment.
  • plural refers to two or more than two, and other quantifiers are similar; "at least one (item)”, “one (item) or multiple (pieces)” or similar expressions refer to any combination of these items (numbers), including any combination of single items (numbers) or plural items (numbers).
  • At least one item (a) can represent any number of a; for another example, one (item) or multiple items (a) among a, b and c can represent: a, b, c, a-b, a-c, b-c, or a-b-c, where a, b, c can be single or multiple; "and/or" is an association relationship that describes associated objects, indicating that there can be three relationships, for example, A and/ or B, can mean: A alone, A and B exist simultaneously, and B alone, where A and B can be singular or plural.
  • the technical solutions of the embodiments of the present disclosure can be applied to various communication systems.
  • the communication system may include one or more of a 4G (the 4th Generation, fourth generation) communication system, a 5G (the 5th Generation, the fifth generation) communication system, and other future wireless communication systems (such as 6G).
  • the communication system may also include a Public Land Mobile Network (PLMN) network, a Device-to-Device (D2D) communication system, a Machine to Machine (M2M) communication system, One or more of the Internet of Things (IoT) communication system, Vehicle-to-Everything (V2X) communication system or other communication systems.
  • PLMN Public Land Mobile Network
  • D2D Device-to-Device
  • M2M Machine to Machine
  • IoT Internet of Things
  • V2X Vehicle-to-Everything
  • FIG 1 is a schematic diagram of a communication system according to an exemplary embodiment.
  • the communication system may include a terminal device 150 and a network device 160.
  • the communication system can be used to support 4G network access technology, such as Long Term Evolution (LTE) access technology, or 5G network access technology, such as New Radio Access Technology (New RAT), Or, other future wireless communication technologies.
  • LTE Long Term Evolution
  • 5G network access technology such as New Radio Access Technology (New RAT), Or, other future wireless communication technologies.
  • the number of network devices and terminal devices can be one or more.
  • the number of network devices and terminal devices in the communication system shown in Figure 1 is only an example of adaptability. This disclosure is No restrictions.
  • the network equipment in Figure 1 can be used to support terminal access.
  • the network equipment can be an evolutionary Node B (eNB or eNodeB) in LTE; the network equipment can also be a next-generation base station in the 5G network (the next Generation Node B, gNB or gNodeB); the network equipment can also be the wireless access network (NG Radio Access Network, NG-RAN) equipment in the 5G network; the network equipment can also be the public land mobile network evolved in the future (Public Land Mobile Network, PLMN) base stations, Broadband Network Gateway (BNG), aggregation switches or non-3GPP (3rd Generation Partnership Project, third generation partner project) access equipment, etc.
  • PLMN Public Land Mobile Network
  • BNG Broadband Network Gateway
  • aggregation switches or non-3GPP (3rd Generation Partnership Project, third generation partner project) access equipment, etc.
  • the network equipment in the embodiments of the present disclosure may include various forms of base stations, such as: macro base stations, micro base stations (also called small stations), relay stations, access points, 5G base stations or future base stations, satellites, Transmitting and Receiving Point (TRP), Transmitting Point (TP), mobile switching center and Device-to-Device (D2D), Machine-to-Machine (M2M), Internet of Things (IoT), Vehicle-to-Everything (V2X) or other devices that perform base station functions in communications, etc., are not specifically limited in the embodiments of this disclosure.
  • devices that provide wireless communication functions for terminal devices are collectively referred to as network equipment or base stations.
  • the terminal device in Figure 1 can be an electronic device that provides voice or data connectivity.
  • the terminal device can also be called user equipment (User Equipment, UE), subscriber unit (Subscriber Unit), mobile station (Mobile Station). ), Station, Terminal, etc.
  • the terminal device may include a smartphone, a smart wearable device, a smart speaker, a smart tablet, a wireless modem, a wireless local loop (Wireless Local Loop, WLL) station, a PDA (Personal Digital Assistant, personal digital assistant) ), CPE (Customer Premise Equipment, customer terminal equipment), etc.
  • devices that can access the communication system can communicate with the network equipment of the communication system, can communicate with other objects through the communication system, or can communicate directly between two or more devices
  • the devices can all be terminal devices in the embodiments of the present disclosure; for example, terminals and cars in smart transportation, household equipment in smart homes, power meter reading instruments, voltage monitoring instruments, environmental monitoring instruments, and intelligent safety networks in smart grids. Video monitoring instruments, cash registers, etc.
  • the terminal device can communicate with the network device.
  • the terminal device may be static or fixed, or may be mobile, which is not limited in this disclosure.
  • the above network device may include at least one base station, and each base station may include at least one cell. Furthermore, each cell may also include at least one beam. For example, some or all of the cells in the network device may be cells that support beamforming (Beamforming), and each cell may be configured with one or more beams.
  • Beamforming beamforming
  • the above communication system can support mobility switching of terminal equipment.
  • the terminal equipment can switch between two beams, the terminal equipment can switch between two cells, and the terminal equipment can also switch between two base stations.
  • the network device may send a handover command to the terminal device in response to the measurement report result sent by the terminal device, and the handover command may carry the configuration information of the target cell.
  • the terminal device can synchronize with the target cell, and then initiate a random access (Radom Access Channel, RACH) process to access the target cell.
  • RACH Random Access Channel
  • the terminal device can obtain the Timing Advance (TA) of the target cell and send a reconfiguration completion message to the target cell based on the TA to complete the handover.
  • TA Timing Advance
  • the network device may indicate the TA used by the terminal device to access the target cell in the handover command. In this way, the terminal device may not perform the random access process, that is, skip the RACH, and directly send the reconfiguration completion to the target cell. information. In this way, switching delay can be reduced and data transmission efficiency can be improved.
  • the terminal device in order to improve the robustness of handover, can perform conditional handover (CHO).
  • the network device can configure the CHO handover command for the terminal device in advance, including the handover target cell configuration. and a handover triggering condition, where the handover target cell configuration may be a configuration parameter provided by the target cell.
  • the terminal device can store the CHO handover command received from the network device, perform RRM (Radio Resource Management, Radio Resource Management) measurements, and determine whether the handover triggering conditions indicated in the CHO handover command are met.
  • RRM Radio Resource Management, Radio Resource Management
  • the terminal device can perform the handover on its own. This can avoid wireless link failure caused by the base station sending the handover command too late.
  • the terminal equipment when the terminal equipment switches to the target cell, different cells or beams may use different TAs.
  • the network equipment does not know when to perform the handover, and the terminal equipment performs switching at different locations or times.
  • the TA used during handover may be different, so the TA of the target cell cannot be indicated in the CHO command.
  • the terminal device cannot skip the RACH stage in the condition-based handover process, resulting in a still large handover delay.
  • the present disclosure provides an access method, device, storage medium and chip.
  • Figure 2 is a flow chart of an access method according to an exemplary embodiment. This method can be applied to terminal equipment in the above communication system. As shown in Figure 2, the method may include:
  • the terminal device determines a first parameter corresponding to at least one candidate access point.
  • the candidate access point may include a target access point, and the access point may be one or more of a cell and a beam.
  • the terminal device may determine that at least one candidate cell corresponds to the first parameter, and the candidate cell may include a target cell; in another possible implementation, the terminal device may determine at least one candidate beam Corresponding to the first parameter, the candidate beam may include a target beam; in another possible implementation, the terminal device may determine at least one candidate cell and the candidate beam corresponding to the first parameter.
  • the first parameter corresponding to the target access point may be used to instruct the terminal device to determine the timing advance TA used to access the target access point.
  • the first parameter may be a parameter preset by the terminal device.
  • the first parameter may be a parameter configured by the network device.
  • the network device sends configuration to the terminal to configure corresponding parameters to the terminal.
  • the terminal device may respond to receiving the first message sent by the network device and acquire the first parameter according to the first message. That is, the network device may send a first message to the terminal device, where the first message includes the first parameter.
  • the terminal device determines the target timing advance TA used to access the target access point according to the first parameter.
  • the terminal device can determine whether to prepare to access the target access point according to preset conditions.
  • the preset conditions may include handover conditions, RRC (Radio Resource Control, Radio Resource Control) reconstruction conditions or other conditions; the way for the terminal device to access the target access point may include handover-based access, RRC reconstruction-based access Access or direct access, this disclosure does not limit this.
  • the terminal device may prepare to access the target access point according to the instructions of the switching command, that is, initiating switching access to the target access point based on the instructions of the switching command.
  • the terminal device can prepare to access the target access point on its own based on the CHO process and when the handover conditions are met, that is, it can initiate handover access to the target access point based on the CHO process.
  • the terminal device when it determines that it is ready to access the target access point, it may obtain the first parameter corresponding to the target access point, and determine the method used to access the target access point based on the first parameter. target TA.
  • the terminal device accesses the target access point according to the target TA.
  • the terminal device may access the target access point in a RACH-less manner according to the target TA.
  • the terminal device can skip the random access process according to the target TA, and directly send the RRC configuration completion message to the target access point according to the target TA, thereby accessing the target access point.
  • the target access point may include one or more of the target cell and the target beam; the candidate access point may also include one or more of the candidate cell and the candidate beam. Multiple items.
  • the target access point may include a target cell.
  • the target cell may be different from the serving cell of the terminal device, or may be the same as the serving cell.
  • the serving cell represents the cell currently used by the terminal device.
  • the terminal device can obtain the target TA of different cells.
  • the target access point may be a target beam.
  • the target beam may be different from the service beam of the terminal device, or may be the same as the service beam.
  • the service beam represents the beam currently used by the terminal device. Further, the target beam and the service beam may be in the same cell or in different cells.
  • the target access point may include a target cell and a target beam.
  • the terminal device may switch from the service beam of the serving cell to the target beam of the target cell for access.
  • the terminal device can obtain target TAs of different beams.
  • the terminal device can determine the first parameter corresponding to at least one candidate access point, determine the target timing advance TA used to access the target access point based on the first parameter, and access the target access point based on the target TA.
  • the candidate access point may include a target access point, and the access point may include a cell and/or a beam.
  • the terminal device can determine the target TA according to the first parameter, and access the target access point according to the target TA, thereby saving the time of determining the target TA through the random access process, reducing handover delay, and improving data transmission during the handover process. efficiency.
  • Figure 3 is a flow chart of an access method according to an exemplary embodiment. As shown in Figure 3, the method may include:
  • the terminal device receives the first message sent by the network device.
  • the first message may include a first parameter corresponding to at least one candidate access point.
  • the terminal device when receiving the first message, the terminal device can obtain the first parameter corresponding to at least one candidate access point in the first message.
  • the first message may be any message or data packet sent by the network device to the terminal device.
  • the first message may be any RRC message sent by the network device to the terminal device, for example, an RRC reconfiguration message, an RRC access success message, or other RRC messages.
  • the first message may be other RRC messages except the handover command message.
  • the first message may be a message used to instruct the terminal device to perform CHO switching, such as a CHO switching command message.
  • the first message may also be a system message
  • the network device may broadcast the first parameter corresponding to at least one candidate access point through the system message.
  • the candidate access point may include a target access point, and the access point may be a cell and/or a beam.
  • the candidate access point may include one or more of a serving cell and a neighboring cell.
  • the serving cell may be a cell that the terminal device currently accesses or is camped on.
  • the serving cell may provide wireless communication services for the terminal device.
  • the neighboring cell may include a cell whose serving cell is configured with a cell neighbor relationship. In other embodiments, the neighboring cell may include a cell whose distance from the serving cell is less than or equal to a preset neighboring cell distance threshold. In some other embodiments, the neighboring cell may include a cell that is configured with a cell neighbor relationship with the serving cell and whose distance from the serving cell is less than or equal to a preset neighbor distance threshold. In some embodiments, the neighboring cell may include a cell configured with a cell neighbor relationship with the serving cell, or a cell whose distance from the serving cell is less than or equal to a preset neighbor distance threshold. Wherein, the above-mentioned preset neighbor distance threshold may be any preset distance threshold.
  • the candidate access point may include one or more of a serving beam and an adjacent beam.
  • the service beam may be a beam that the terminal device currently accesses or camps on.
  • the service beam may provide wireless communication services for the terminal device.
  • the adjacent beams may include beams in which the service beam is configured with a beam adjacent relationship.
  • the adjacent beam may include a beam whose distance from the service beam is less than or equal to a preset adjacent beam distance threshold.
  • the adjacent beam may include a beam configured with a beam adjacent relationship with the service beam and a distance from the service beam that is less than or equal to a preset neighbor beam distance threshold.
  • the adjacent beam may include a beam configured with a beam adjacent relationship with the service beam, or a beam whose distance from the service beam is less than or equal to a preset neighbor beam distance threshold.
  • the above-mentioned preset adjacent beam distance threshold may be any preset distance threshold.
  • the terminal device accesses the target access point according to the target TA.
  • the terminal device can receive the first parameter from the network device, determine the target TA according to the first parameter, and access the target access point according to the target TA, thereby saving the time of determining the target TA through the random access process and reducing the handover delay. , improve the data transmission efficiency during the switching process.
  • the above-mentioned first parameter may include the access point identifier of at least one candidate access point, and the access point TA parameter corresponding to each access point identifier; in this way, the terminal device can determine the target access point identifier corresponding to the first parameter based on the first parameter.
  • the target access point TA parameters wherein, the target access point identifier can be the access point identifier corresponding to the target access point to be accessed; the target TA is determined according to the target access point TA parameters.
  • the access point identity may include one or more of a cell identity and a beam identity.
  • the cell identifier may include a CGI (Cell Global Identifier), and the beam identifier may be determined by a TCI (Transmission Configuration Indicator).
  • CGI Cell Global Identifier
  • TCI Transmission Configuration Indicator
  • the access point identifier may include a cell identifier, and the access point TA parameters may include cell TA parameters. In other embodiments, the access point identifier may include a beam identifier, and the access point TA parameters may include beam TA parameters. In some other embodiments, the access point identifier may include a cell identifier and a beam identifier, and the access point TA parameters may include cell TA parameters and beam TA parameters.
  • the above access point TA parameters may include pending TA.
  • the pending TA can be used to instruct the terminal device to obtain the TA length corresponding to the access point identity.
  • the pending TA may include the access point TA length (the access point TA length may be any value greater than or equal to 0) or the access point TAG (Timing Advance Group) identification, which is equivalent to
  • the above access point TA parameters may include the access point TA length or the access point TAG identification.
  • the terminal device can determine the length of the target TA corresponding to the target access point identifier based on the pending TA (or access point TA parameter).
  • the access point TA length corresponding to the target access point identifier may be used as the TA length of the target TA; or, the TA length of the target TA may be determined based on the access point TAG identifier corresponding to the target access point identifier.
  • the terminal device can store N timing advance groups TAG, where N can be a positive integer greater than or equal to 1, for example, N is 4.
  • Each TAG may include at least one cell, and cells in the same TAG use the same TA length.
  • Each TAG can be distinguished by its TAG identifier, that is, different TAGs have different TAG identifiers.
  • each cell can belong to a TAG. In this way, the corresponding TA length can be determined through the TAG identification.
  • the above-mentioned pending TA may also include a TA offset N TA offset.
  • the above target access point TA parameters may include at least one pending TA and first condition information corresponding to each pending TA.
  • the terminal device can determine whether the terminal device satisfies the TA validation condition based on the first condition information; when it is determined that the terminal device satisfies the TA validation condition, the target TA is determined based on the pending TA corresponding to the first condition information.
  • the pending TA may also include the access point TA length or the access point TAG identifier.
  • the terminal device when the access point TA parameter includes the undetermined TA but does not include the first condition information, the terminal device can directly obtain the target TA corresponding to the target access point without performing condition judgment.
  • the above-mentioned first condition information includes one or more of preset signal condition information, preset location condition information and preset time condition information. They are explained below:
  • the preset signal condition information may be used to instruct the terminal device to determine whether the terminal device meets the TA validity condition based on the detected wireless signal strength of the target access point.
  • the TA validity condition may include that the wireless signal strength of the target access point detected by the terminal device is within the target signal strength range, and the target signal The strength range may be a signal strength range determined based on preset signal condition information.
  • the wireless signal strength may include RSRP (Reference Signal Receiving Power, reference signal receiving power) or RSSI (Received Signal Strength Indicator, received signal strength indicator) detected by the terminal device.
  • RSRP Reference Signal Receiving Power, reference signal receiving power
  • RSSI Receiveived Signal Strength Indicator, received signal strength indicator
  • the preset signal condition information may include at least one correspondence between RSRP and TA.
  • it may include correspondence between multiple RSRP ranges and TA.
  • the TA corresponding to the signal condition that the RSRP is less than the first RSRP value can be the first pending TA; the RSRP is between the first RSRP value and the second RSRP value (for example, greater than or equal to the first RSRP value and less than the second RSRP value)
  • the TA corresponding to the signal condition may be the second pending TA; the TA corresponding to the signal condition whose RSRP is between the second RSRP value and the third RSRP value (for example, greater than or equal to the second RSRP value and less than the third RSRP value) may be
  • the third undetermined TA; the TA corresponding to the signal condition whose RSRP is greater than or equal to the third RSRP value may be the fourth undetermined TA.
  • the above-mentioned first to fourth RSRP values may be set based on experience.
  • the relationship between the above-mentioned RSRP values may be: first RSRP value ⁇ second RSRP value ⁇ third RSRP value ⁇ fourth RSRP value.
  • more or less interval ranges can also be set.
  • M+1 RSRP interval ranges can be obtained by dividing M RSRPs arranged from small to large, and each RSRP range corresponds to a pending TA.
  • the target TA can be determined based on the pending TA corresponding to the target signal strength range. For example, when the terminal device detects that the RSRP of the target access point is greater than or equal to the first RSRP value and less than the second RSRP value, the above-mentioned second pending TA may be used as the target TA.
  • the preset signal condition information may include signal condition information corresponding to the candidate access point of the terminal device.
  • the candidate access points may include one or more.
  • the candidate access point may include one or more of a serving cell, a handover target cell, and a neighboring cell.
  • the candidate access point may include one or more of a serving beam, a switching target beam, and an adjacent beam.
  • the terminal device can determine whether the terminal device satisfies the TA validation condition based on the preset signal condition information, and if it is determined that the terminal device satisfies the TA validation condition, determine the target TA based on the pending TA corresponding to the preset signal condition information.
  • the preset location condition information may be used to instruct the terminal device to determine whether the terminal device satisfies the TA validation condition based on the location information of the terminal device.
  • the preset location condition information may include at least one first pending cell; the TA validity condition may include that the serving cell of the terminal device is included in the above-mentioned in at least one first pending cell.
  • the terminal device may determine at least one first pending cell based on the preset location condition information. If the serving cell is included in the first pending cell, it may be determined that the terminal device satisfies the TA validity condition. Therefore, the target TA can be determined based on the pending TA corresponding to the preset location condition information.
  • the preset location condition information may include at least one second undetermined cell and the first distance parameter corresponding to each second undetermined cell;
  • the TA validity condition may include that the first distance between the terminal device and the antenna corresponding to the second undetermined cell is less than or equal to the first distance threshold, and the first distance threshold is the distance threshold determined according to the first distance parameter.
  • the terminal device may determine the first distance threshold according to the first distance parameter, and when the distance between the terminal device and the second undetermined cell is less than or equal to the first distance threshold, it may be determined that the terminal device satisfies the TA validity condition. According to the The pending TA corresponding to the preset location condition information determines the target TA.
  • the terminal device may determine the first distance threshold according to the first distance parameter in multiple ways: for example, the terminal device may use the first distance parameter as the first distance threshold. For another example, the terminal device may determine the first distance threshold corresponding to the first distance parameter according to the preset distance parameter threshold correspondence.
  • the preset distance parameter threshold correspondence relationship can be the same correspondence relationship set by both the terminal device and the network device. For example, a first distance parameter of 1 can correspond to a first distance threshold of 30, and a first distance parameter of 2 can correspond to the first distance. The threshold is 50, and the first distance parameter is 3, which corresponds to the first distance threshold being 100, and so on.
  • the preset location condition information when the first condition information includes preset location condition information, the preset location condition information includes a preset location parameter and a second distance parameter; the TA validity condition includes a third distance between the terminal device and the preset location.
  • the second distance is less than or equal to the second distance threshold, the preset location is the geographical location determined according to the preset location parameter, and the second distance threshold is the distance threshold determined according to the second distance parameter.
  • the terminal device may determine the second distance threshold according to the second distance parameter, and when the distance between the terminal device and the preset location is less than or equal to the second distance threshold, it may be determined that the terminal device satisfies the TA validation condition. Assume that the pending TA corresponding to the location condition information determines the target TA.
  • the preset location may be a geographical location determined based on preset location parameters.
  • the preset position parameter may be a latitude and longitude parameter, and the preset position may be determined based on the latitude and longitude parameter.
  • the terminal device may use the second distance parameter as the second distance threshold.
  • the terminal device may determine the second distance threshold corresponding to the second distance parameter according to the preset distance parameter threshold correspondence.
  • the terminal device can determine whether the terminal device satisfies the TA validation condition based on the preset location condition information, and if it is determined that the terminal device satisfies the TA validation condition, determine the target TA based on the pending TA corresponding to the preset location condition information.
  • the preset time condition information may be used to instruct the terminal device to determine whether the terminal device meets the TA validity condition based on the time when the access is initiated.
  • the preset time condition information includes preset time parameters
  • the TA validity condition includes that the current time of the terminal device is within the first time range
  • the first time range is A time range determined based on preset time parameters.
  • the preset time parameter includes a first absolute time and a first duration.
  • the above first time range may be determined in the following manner: determining the first time range based on the first absolute time and the first duration.
  • the first absolute time and the first duration may be times determined by the network device according to preconfigured parameters.
  • the time range obtained by adding the first absolute time and the first duration may be used as the first time range.
  • the first absolute time can be a preset absolute time (for example, 19 o'clock)
  • the first duration can be a preset time length (for example, 30 minutes). In this way, the period from 19 o'clock to 19:30 can be time range as the first time range.
  • the preset time parameter includes a second duration and a first preset condition; the above-mentioned first time range can be determined in the following manner: taking the second duration starting when the terminal device satisfies the first preset condition as the first time limit.
  • the first time range can be determined through a first timer.
  • the first timer can be started or restarted.
  • the duration of the first timer can be the second duration.
  • the above-mentioned first preset condition may include one or more of the following conditions:
  • Condition 1 The terminal device receives the first message sent by the network device.
  • the above-mentioned first timer may be started or restarted according to the second duration.
  • Condition 2 The current time of the terminal device is equal to the second absolute time.
  • the second absolute time may be determined by the terminal device according to the time parameter received from the network device.
  • the above-mentioned first timer may be started or restarted according to the second duration.
  • Condition 3 The terminal device determines that the terminal device meets the TA effective conditions based on the preset signal condition information.
  • Condition 4 The terminal device determines that the terminal device meets the TA effective conditions based on the preset location condition information.
  • the terminal device when the terminal device triggers a target event, the above-mentioned first timer can be started or restarted according to the second duration.
  • the target event may include an event corresponding to condition three or condition four above.
  • the terminal device can determine whether the terminal device satisfies the TA validation condition based on the preset time condition information, and if it is determined that the terminal device satisfies the TA validation condition, determine the target TA based on the pending TA corresponding to the preset time condition information.
  • the terminal device can determine whether the terminal device satisfies the TA validation condition based on any one or more of the above first condition information; when it is determined that the terminal device satisfies the TA validation condition, the terminal device can determine whether the terminal device satisfies the TA validation condition according to the first condition information.
  • the pending TA determines the target TA.
  • the target TA may be determined based on the pending TA corresponding to the first condition information.
  • the pending TA can be used as the target TA.
  • the target TA when the terminal device satisfies multiple items of the above-mentioned first condition information, the target TA may be determined based on the pending TA corresponding to the multiple items of first condition information. For example, the average, maximum or minimum value of the undetermined TA corresponding to multiple pieces of first condition information can be used as the target TA.
  • the terminal device can determine the target TA according to various condition information, so as to access the target access point (eg, target cell or target beam) according to the target TA.
  • the target access point eg, target cell or target beam
  • the terminal device may also determine the uplink channel resource parameters, and when determining the target TA used to access the target access point based on the first parameter, perform uplink transmission based on the uplink channel resource parameters. .
  • the terminal device may perform uplink transmission through the target access point (target cell or target beam) according to the uplink channel resource parameter.
  • target access point target cell or target beam
  • the uplink channel resource parameters may include parameters used to indicate uplink PUSCH (Physical Uplink Shared Channel, Physical Uplink Shared Channel) resources.
  • the uplink PUSCH resource may be an available PUSCH resource provided by the network device, such as a reserved PUSCH resource.
  • the terminal device may receive a second message sent by the network device, and the second message may include uplink channel resource parameters.
  • the terminal device when receiving the second message sent by the network device, the terminal device can obtain the uplink channel resource parameters in the second message, and determine the uplink PUSCH resources according to the uplink resource parameters.
  • the second message and the first message may be the same or different.
  • the terminal device can perform uplink transmission according to the uplink channel resource parameters, for example:
  • the terminal device may send an uplink RRC message according to the uplink channel resource parameter.
  • the uplink RRC message may include an RRC reconfiguration complete message, an RRC reconfiguration failure message, or other RRC messages.
  • the terminal device may send uplink data according to the uplink channel resource parameters.
  • the terminal device may send the uplink RRC message and uplink data according to the uplink channel resource parameter.
  • the terminal device can perform uplink transmission according to the uplink channel resource parameters after determining the target TA, thereby reducing the service interruption delay caused by handover and improving data transmission efficiency.
  • Figure 4 is a flow chart of an access method according to an exemplary embodiment. As shown in Figure 4, the method may include:
  • the terminal device receives the first message sent by the network device.
  • the first message may be any message or data packet sent by the network device to the terminal device.
  • the first message may be a message used to instruct the terminal device to perform CHO switching, such as a CHO switching command message.
  • the first message may include a first parameter corresponding to at least one candidate access point.
  • the first message may also include uplink channel resource parameters corresponding to at least one candidate access point.
  • the first message may also include the first parameter and the uplink channel resource parameter corresponding to at least one candidate access point.
  • the terminal device determines the first parameter corresponding to at least one candidate access point according to the first message.
  • the first parameter may be used to instruct the terminal device to determine the timing advance TA used to access the candidate access point.
  • the first parameter may include an access point identifier of at least one candidate access point, and an access point TA parameter corresponding to each access point identifier.
  • the access point TA parameters may include at least one pending TA and first condition information corresponding to each pending TA.
  • the terminal device determines the uplink channel resource parameters corresponding to at least one candidate access point according to the first message.
  • the terminal device determines the target access point to be accessed.
  • the terminal device determines the target timing advance TA used to access the target access point based on the first parameter, and determines the target uplink channel resource used to access the target access point based on the uplink channel resource parameter.
  • the terminal device accesses the target access point according to the target TA and target uplink channel resources.
  • the terminal device may use target uplink channel resources (such as PUSCH resources) to send an RRC reconfiguration completion message or uplink data to the target access point according to the target TA, so as to access the target access point for communication.
  • target uplink channel resources such as PUSCH resources
  • the terminal device can access the target access point according to the target TA and target uplink channel resources, which can further reduce the service interruption delay caused by handover and improve data transmission efficiency.
  • Figure 5 is a flow chart of an access method according to an exemplary embodiment. This method can be applied to network equipment in the above communication system. As shown in Figure 5, the method may include:
  • the network device determines the first parameter corresponding to at least one candidate access point.
  • the candidate access point may include a target access point, and the access point may be a cell and/or a beam.
  • the network device may determine that at least one candidate cell corresponds to the first parameter, and the candidate cell may include a target cell; in another possible implementation, the network device may determine at least one candidate beam Corresponding to the first parameter, the candidate beam may include a target beam; in another possible implementation, the network device may determine at least one candidate cell and the candidate beam corresponding to the first parameter.
  • the first parameter corresponding to the target access point may be used to instruct the terminal device to determine the timing advance TA used to access the target access point.
  • the candidate access point may include one or more of a serving cell and a neighboring cell determined by the network device.
  • the serving cell may be a cell that the terminal device currently accesses or is camped on.
  • the serving cell may provide wireless communication services for the terminal device.
  • the neighboring cell may include a cell whose serving cell is configured with a cell neighbor relationship. In other embodiments, the neighboring cell may include a cell whose distance from the serving cell is less than or equal to a preset neighboring cell distance threshold. In some other embodiments, the neighboring cell may include a cell that is configured with a cell neighbor relationship with the serving cell and whose distance from the serving cell is less than or equal to a preset neighbor distance threshold. In some embodiments, the neighboring cell may include a cell configured with a cell neighbor relationship with the serving cell, or a cell whose distance from the serving cell is less than or equal to a preset neighbor distance threshold. Wherein, the above-mentioned preset neighbor distance threshold may be any preset distance threshold.
  • the candidate access point may include one or more of a serving beam and a neighboring beam.
  • the service beam may be a beam that the terminal device currently accesses or camps on.
  • the service beam may provide wireless communication services for the terminal device.
  • the adjacent beams may include beams in which the service beam is configured with a beam adjacent relationship.
  • the adjacent beam may include a beam whose distance from the service beam is less than or equal to a preset adjacent beam distance threshold.
  • the adjacent beam may include a beam configured with a beam adjacent relationship with the service beam and a distance from the service beam that is less than or equal to a preset neighbor beam distance threshold.
  • the adjacent beam may include a beam configured with a beam adjacent relationship with the service beam, or a beam whose distance from the service beam is less than or equal to a preset adjacent beam distance threshold.
  • the above-mentioned preset adjacent beam distance threshold may be any preset distance threshold.
  • the network device sends the first message to the terminal device according to the first parameter.
  • the first message may include the above-mentioned first parameter; the first parameter may be used to instruct the terminal device to determine the target timing advance TA used to access the target access point when preparing to access the target access point. , and access the target access point according to the target TA.
  • the terminal device can determine whether to prepare to access the target access point according to preset conditions.
  • the preset conditions may include handover conditions, RRC (Radio Resource Control, Radio Resource Control) reconstruction conditions or other conditions; the way for the terminal device to access the target access point may include handover-based access, RRC reconstruction-based access Access or direct access, this disclosure does not limit this.
  • the terminal device may prepare to access the target access point according to the instructions of the switching command, that is, initiating switching access to the target access point based on the instructions of the switching command.
  • the terminal device can prepare to access the target access point on its own based on the CHO process and when the handover conditions are met, that is, it can initiate handover access to the target access point based on the CHO process.
  • the network device can determine the first parameter corresponding to at least one candidate access point, and send the first message to the terminal device according to the first parameter.
  • the candidate access point may include a target access point, and the access point may include a cell and/or a beam; the first message may include a first parameter; the first parameter may be used to indicate that the terminal device is preparing to access
  • the network device can instruct the terminal device to determine the target TA according to the first parameter, and access the target access point according to the target TA, thereby saving the time of determining the target TA through the random access process, reducing the handover delay, and improving the handover process. data transmission efficiency.
  • Figure 6 is a flowchart of a method for a network device to determine a first parameter according to an exemplary embodiment. As shown in Figure 6, the method may include:
  • the network device determines the access point identifier of at least one candidate access point.
  • the access point identity may include one or more of a cell identity and a beam identity.
  • the cell identifier may include a CGI (Cell Global Identifier), and the beam identifier may be determined by a TCI (Transmission Configuration Indication).
  • CGI Cell Global Identifier
  • TCI Transmission Configuration Indication
  • the network device determines the access point TA parameters corresponding to each access point identifier.
  • the access point TA parameters may be parameters preconfigured by the network device.
  • the network device may be preconfigured with at least one access point identifier and the access point TA parameters corresponding to each access point identifier.
  • the access point identifier may include a cell identifier, and the access point TA parameters may include cell TA parameters. In other embodiments, the access point identifier may include a beam identifier, and the access point TA parameters may include beam TA parameters. In some other embodiments, the access point identifier may include a cell identifier and a beam identifier, and the access point TA parameters may include cell TA parameters and beam TA parameters.
  • the network device obtains the first parameter according to the access point identifier and the access point TA parameter.
  • the network device can determine the first parameter corresponding to at least one candidate access point.
  • the above access point TA parameters may include pending TA.
  • the pending TA can be used to instruct the terminal device to obtain the TA length corresponding to the access point identity.
  • the pending TA may include the access point TA length (the access point TA length may be any value greater than or equal to 0) or the access point TAG identifier, which is equivalent to the above access point TA parameters may include the access point TA length.
  • Access point TA length or access point TAG identification In this way, the terminal device can determine the length of the target TA corresponding to the target access point identifier based on the pending TA (or access point TA parameter). For example, the access point TA length corresponding to the target access point identifier may be used as the TA length of the target TA; or, the TA length of the target TA may be determined based on the access point TAG identifier corresponding to the target access point identifier.
  • the above-mentioned pending TA may also include a TA offset N TA offset.
  • the above access point TA parameters may include at least one pending TA and first condition information corresponding to each pending TA.
  • the network device can obtain the access point TA parameters in the following manner.
  • the access point TA parameters are determined based on the pending TA and the first condition information.
  • the above-mentioned first condition information includes one or more of preset signal condition information, preset location condition information and preset time condition information. They are explained below:
  • the preset signal condition information may be used to instruct the terminal device to determine whether the terminal device meets the TA validity condition based on the detected wireless signal strength of the target access point.
  • the TA validity condition includes that the wireless signal strength of the target access point detected by the terminal device is within the target signal strength range, and the target signal strength range is based on the preset signal The signal strength range determined by the condition information.
  • the TA validity condition may include that the wireless signal strength of the target access point detected by the terminal device is within the target signal strength range, and the target signal The strength range may be a signal strength range determined based on preset signal condition information.
  • the wireless signal strength may include RSRP or RSSI detected by the terminal device.
  • the preset location condition information may be used to instruct the terminal device to determine whether the terminal device satisfies the TA validation condition based on the location information of the terminal device.
  • the preset location condition information may include at least one first pending cell; the TA validity condition may include that the serving cell of the terminal device is included in the above-mentioned in at least one first pending cell.
  • the preset location condition information may be used to instruct the terminal device to determine at least one first undetermined cell based on the preset location condition information.
  • the serving cell is included in the first undetermined cell, it is determined that the terminal device satisfies the requirement for TA to take effect. condition. Therefore, the target TA can be determined based on the pending TA corresponding to the preset location condition information.
  • the preset location condition information may include at least one second undetermined cell and the first distance parameter corresponding to each second undetermined cell;
  • the TA validity condition may include that the first distance between the terminal device and the antenna corresponding to the second undetermined cell is less than or equal to the first distance threshold, and the first distance threshold is the distance threshold determined according to the first distance parameter.
  • the preset location condition information may be used to instruct the terminal device to determine the first distance threshold according to the first distance parameter, and when the distance between the terminal device and the second undetermined cell is less than or equal to the first distance threshold, determine The device meets the TA validity conditions and determines the target TA based on the pending TA corresponding to the preset location condition information.
  • the preset location condition information when the first condition information includes preset location condition information, the preset location condition information includes a preset location parameter and a second distance parameter; the TA validity condition includes a third distance between the terminal device and the preset location.
  • the second distance is less than or equal to the second distance threshold, the preset location is the geographical location determined according to the preset location parameter, and the second distance threshold is the distance threshold determined according to the second distance parameter.
  • the preset location condition information may be used to instruct the terminal device to determine a second distance threshold based on the second distance parameter, and when the distance between the terminal device and the preset location is less than or equal to the second distance threshold, determine that the terminal device If the TA validity conditions are met, the target TA is determined based on the pending TA corresponding to the preset location condition information.
  • the preset location may be a geographical location determined based on preset location parameters.
  • the preset time condition information may be used to instruct the terminal device to determine whether the terminal device meets the TA validity condition based on the time when the access is initiated.
  • the preset time condition information includes preset time parameters
  • the TA validity condition includes that the current time of the terminal device is within the first time range
  • the first time range is A time range determined based on preset time parameters.
  • the preset time parameter includes a first absolute time and a first duration.
  • the above first time range may be determined in the following manner: determining the first time range based on the first absolute time and the first duration.
  • the preset time parameter includes a second duration and a first preset condition; the above-mentioned first time range can be determined in the following manner: taking the second duration starting when the terminal device satisfies the first preset condition as the first time limit.
  • the above-mentioned first preset condition may include one or more of the following conditions:
  • Condition 1 The terminal device receives the first message sent by the network device.
  • Condition 2 The current time of the terminal device is equal to the second absolute time.
  • the second absolute time may be a time determined according to a time parameter sent by the network device to the terminal device.
  • Condition 3 The terminal device determines that the terminal device meets the TA effective conditions based on the preset signal condition information.
  • Condition 4 The terminal device determines that the terminal device meets the TA effective conditions based on the preset location condition information.
  • the network device can instruct the terminal device to determine whether the terminal device meets the TA validation condition based on any one or more of the above first condition information; when it is determined that the terminal device meets the TA validation condition, based on the first The pending TA corresponding to the condition information determines the target TA.
  • the network device may also determine the uplink channel resource parameters, and send the second message to the terminal device according to the uplink channel resource parameters.
  • the second message may include uplink channel resource parameters.
  • the uplink channel resource parameter may be used to instruct the terminal device to perform uplink transmission according to the uplink channel resource parameter after determining the target TA used to access the target access point based on the first parameter.
  • the second message and the first message may be the same or different.
  • the uplink channel resource parameters may include parameters used to indicate uplink PUSCH resources.
  • the uplink PUSCH resource may be an available PUSCH resource provided by the network device, such as a reserved PUSCH resource.
  • the network device may instruct the terminal device to send an uplink RRC message according to the uplink channel resource parameter. In this way, the network device may receive the uplink RRC message sent by the terminal device according to the uplink channel resource parameter.
  • the uplink RRC message may include an RRC reconfiguration complete message, an RRC reconfiguration failure message, or other RRC messages.
  • the network device can instruct the terminal device to send uplink data according to the uplink channel resource parameter, so that the network device can receive the uplink data sent by the terminal device according to the uplink channel resource parameter.
  • the network device can instruct the terminal device to send uplink RRC messages and uplink data according to the uplink channel resource parameters. In this way, the network device can receive the uplink RRC messages and uplink data sent by the terminal device according to the uplink channel resource parameters. .
  • the network device can instruct the terminal device to perform uplink transmission according to the uplink channel resource parameters when the target TA is determined, thereby reducing the service interruption delay caused by handover and improving data transmission efficiency.
  • Figure 7 is a flow chart of an access method according to an exemplary embodiment. As shown in Figure 7, the method may include:
  • the network device determines the first parameter and the uplink channel resource parameter corresponding to at least one candidate access point.
  • the network device sends the first message to the terminal device according to the first parameter and the uplink channel resource parameter.
  • the first message may include the above-mentioned first parameter and the uplink channel resource parameter; the candidate access point may include a target access point, and the access point may include a cell and/or a beam.
  • the first parameter corresponding to the target access point may be used to instruct the terminal device to determine the timing advance TA used to access the target access point.
  • the uplink channel resource parameters corresponding to the target access point may be used to instruct the terminal device to perform uplink transmission according to the uplink channel resource parameters after determining the target TA used to access the target access point based on the first parameter.
  • the uplink channel resource parameters may include parameters used to indicate uplink PUSCH resources.
  • the network device can instruct the terminal device to access the target access point according to the target TA and target uplink channel resources, thereby further reducing the service interruption delay caused by handover and improving data transmission efficiency.
  • Figure 8 is a flow chart of an access method according to an exemplary embodiment. As shown in Figure 8, the method may include:
  • the network device determines a first parameter corresponding to at least one candidate access point.
  • the candidate access point may include a target access point, and the access point may include a cell and/or a beam.
  • the first parameter corresponding to the target access point may be used to instruct the terminal device to determine the timing advance TA used to access the target access point.
  • the network device sends the first message to the terminal device according to the first parameter.
  • the terminal device determines the first parameter corresponding to at least one candidate access point.
  • S805 The terminal device accesses the target access point according to the target TA.
  • the terminal device can determine the target TA according to the first parameter sent by the network device, and access the target access point according to the target TA, thereby saving the time of determining the target TA through the random access process, reducing the handover delay, and improving the handover process. data transmission efficiency.
  • Figure 9 is a block diagram of an access device 900 according to an exemplary embodiment.
  • the access device can be applied to terminal equipment.
  • the device 900 may include:
  • the first determination module 901 is configured to determine the first parameter corresponding to at least one candidate access point; wherein the candidate access point includes a target access point, and the access point includes a cell and/or a beam;
  • the second determination module 902 is configured to determine the target timing advance TA used to access the target access point according to the first parameter
  • the access module 903 is configured to access the target access point according to the target TA.
  • the first determination module 901 is configured to receive a first message sent by a network device, where the first message includes the first parameter corresponding to at least one of the candidate access points.
  • the first parameter includes an access point identifier of at least one of the candidate access points, and an access point TA parameter corresponding to each access point identifier; the second determination module 902 , configured to determine the target access point TA parameter corresponding to the target access point identification according to the first parameter; wherein the target access point identification is the access point corresponding to the target access point to be accessed. Point identification; determine the target TA according to the target access point TA parameters.
  • the target access point TA parameters include at least one pending TA and first condition information corresponding to the pending TA; the second determination module 902 is configured to determine based on the first condition information Whether the terminal device satisfies the TA validation condition; if it is determined that the terminal device satisfies the TA validation condition, the target TA is determined based on the pending TA corresponding to the first condition information.
  • the first condition information includes at least one of the following information:
  • the preset signal condition information is used to instruct the terminal device to determine whether the terminal device meets the TA validity condition based on the detected wireless signal strength of the target access point;
  • the preset location condition information is used to instruct the terminal device to determine whether the terminal device satisfies the TA validity condition based on the location information of the terminal device;
  • the preset time condition information is used to instruct the terminal device to determine whether the terminal device meets the TA validity condition according to the time when access is initiated.
  • the TA validity condition includes that the wireless signal strength is within a target signal strength range, and the target signal strength range is based on The signal strength range determined by the preset signal condition information.
  • the preset location condition information includes at least one first pending cell; the TA validity condition includes the service of the terminal device The cell is included in the at least one first pending cell.
  • the preset location condition information when the first condition information includes preset location condition information, includes at least one second undetermined cell and a first cell corresponding to each second undetermined cell.
  • Distance parameter; the TA validity condition includes that the first distance between the terminal equipment and the antenna corresponding to the second undetermined cell is less than or equal to a first distance threshold, and the first distance threshold is determined according to the first distance parameter distance threshold.
  • the preset location condition information when the first condition information includes preset location condition information, the preset location condition information includes a preset location parameter and a second distance parameter; the TA validity condition includes the terminal The second distance between the device and the preset location is less than or equal to a second distance threshold, the preset location is a geographical location determined based on the preset location parameter, and the second distance threshold is determined based on the second distance parameter. distance threshold.
  • the preset time condition information includes a preset time parameter
  • the TA validity condition includes the current time of the terminal device being in Within a first time range
  • the first time range is a time range determined according to the preset time parameter.
  • the preset time parameter includes a first absolute time and a first duration; the first time range is determined in the following manner:
  • the first time range is determined based on the first absolute time and the first duration.
  • the preset time parameter includes a second duration; the first time range is determined in the following manner:
  • the first preset condition includes one or more of the following conditions:
  • the current time of the terminal device is equal to the second absolute time; the second absolute time is the time received by the terminal device from the network device;
  • the access point TA parameters include the access point TA length or the access point timing advance group TAG identification, and the target access point corresponding to the target access point identification is determined based on the first parameter.
  • TA parameters include:
  • the length of the target TA corresponding to the target access point identifier is determined.
  • Figure 10 is a block diagram of an access device according to an exemplary embodiment. As shown in Figure 10, the device 900 may also include a first determining module 901, wherein:
  • the first determination module 901 is also configured to determine uplink channel resource parameters
  • the transmission module 904 is configured to perform uplink transmission according to the uplink channel resource parameter when the target TA used to access the target access point is determined according to the first parameter.
  • the first determining module 901 is configured to receive a second message sent by a network device, where the second message includes the uplink channel resource parameter.
  • the transmission module 904 is configured to send an uplink radio resource control RRC message according to the uplink channel resource parameter; and/or send uplink data according to the uplink channel resource parameter.
  • the access module 903 is configured to access the target access point in a RACH-less manner according to the target TA.
  • FIG 11 is a block diagram of an access device 1100 according to an exemplary embodiment.
  • the access device can be applied to terminal equipment.
  • the device 1100 may include:
  • the third determination module 1101 is configured to determine the first parameter corresponding to at least one candidate access point; the candidate access point includes a target access point;
  • the first sending module 1102 is configured to send a first message to the terminal device according to the first parameter; wherein the first message includes the first parameter; the first parameter is used to indicate to the terminal device When preparing to access the target access point, determine the target timing advance TA used to access the target access point, and access the target access point according to the target TA; wherein the access point includes cells and/or beams.
  • the third determination module 1101 is configured to determine the access point identifier of at least one of the candidate access points; determine the access point TA parameters corresponding to each of the access point identifiers; according to The access point identifier and the access point TA parameter are used to obtain the first parameter.
  • the third determination module 1101 is configured to obtain at least one pending TA corresponding to the access point identification; determine the first condition information corresponding to each of the pending TAs; and determine the first condition information corresponding to the pending TA according to the pending TA. and the first condition information to determine the access point TA parameters.
  • the first condition information includes at least one of the following information:
  • the preset signal condition information is used to instruct the terminal device to determine whether the terminal device meets the TA validity condition based on the detected wireless signal strength of the target access point;
  • the preset location condition information is used to instruct the terminal device to determine whether the terminal device satisfies the TA validity condition based on the location information of the terminal device;
  • the preset time condition information is used to instruct the terminal device to determine whether the terminal device meets the TA validity condition according to the time when access is initiated.
  • the TA validity condition includes that the wireless signal strength of the target access point detected by the terminal device is within the target Signal strength range
  • the target signal strength range is the signal strength range determined according to the preset signal condition information.
  • the preset location condition information includes at least one first pending cell; the TA validity condition includes the service of the terminal device The cell is included in the at least one first pending cell.
  • the preset location condition information when the first condition information includes preset location condition information, includes at least one second undetermined cell and a first cell corresponding to each second undetermined cell.
  • Distance parameter; the TA validity condition includes that the first distance between the terminal equipment and the antenna corresponding to the second undetermined cell is less than or equal to a first distance threshold, and the first distance threshold is determined according to the first distance parameter distance threshold.
  • the preset location condition information when the first condition information includes preset location condition information, the preset location condition information includes a preset location parameter and a second distance parameter; the TA validity condition includes the terminal The second distance between the device and the preset location is less than or equal to a second distance threshold, the preset location is a geographical location determined based on the preset location parameter, and the second distance threshold is determined based on the second distance parameter. distance threshold.
  • the preset time condition information includes a preset time parameter
  • the TA validity condition includes the current time of the terminal device being in Within a first time range
  • the first time range is a time range determined according to the preset time parameter.
  • the access point TA parameter includes an access point TA length or an access point timing advance group TAG identification.
  • Figure 12 is a block diagram of an access device 1100 according to an exemplary embodiment. As shown in Figure 12, the device 1100 may also include a fourth determining module 1103, wherein:
  • the fourth determination module 1103 is also configured to determine uplink channel resource parameters
  • the first sending module 1102 is further configured to send a second message to the terminal device according to the uplink channel resource parameter, where the second message includes the uplink channel resource parameter; the uplink channel resource parameter is used to indicate After the terminal device determines the target TA used to access the target access point according to the first parameter, the terminal device performs uplink transmission according to the uplink channel resource parameter.
  • Figure 13 is a block diagram of an access device according to an exemplary embodiment.
  • the access device 2000 may be a terminal device in the communication system shown in Figure 1, or may be a network device in the communication system.
  • the apparatus 2000 may include one or more of the following components: a processing component 2002, a memory 2004, and a communications component 2006.
  • the processing component 2002 may be used to control the overall operations of the device 2000, such as operations associated with display, phone calls, data communications, camera operations, and recording operations.
  • the processing component 2002 may include one or more processors 2020 to execute instructions to complete all or part of the steps of the above access method. Additionally, processing component 2002 may include one or more modules that facilitate interaction between processing component 2002 and other components. For example, processing component 2002 may include a multimedia module to facilitate interaction between the multimedia component and processing component 2002.
  • Memory 2004 is configured to store various types of data to support operations at device 2000. Examples of such data include instructions for any application or method operating on device 2000, contact data, phonebook data, messages, pictures, videos, etc.
  • Memory 2004 may be implemented by any type of volatile or non-volatile storage device, or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EEPROM), Programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic or optical disk.
  • SRAM static random access memory
  • EEPROM electrically erasable programmable read-only memory
  • EEPROM erasable programmable read-only memory
  • EPROM Programmable read-only memory
  • PROM programmable read-only memory
  • ROM read-only memory
  • magnetic memory flash memory, magnetic or optical disk.
  • Communication component 2006 is configured to facilitate wired or wireless communication between apparatus 2000 and other devices.
  • the device 2000 can access a wireless network based on communication standards, such as Wi-Fi, 2G, 3G, 4G, 5G, 6G, NB-IOT, eMTC, etc., or a combination thereof.
  • the communication component 2006 receives broadcast signals or broadcast related information from an external broadcast management system via a broadcast channel.
  • the communications component 2006 also includes a near field communications (NFC) module to facilitate short-range communications.
  • the NFC module can be implemented based on radio frequency identification (RFID) technology, infrared data association (IrDA) technology, ultra-wideband (UWB) technology, Bluetooth (BT) technology and other technologies.
  • RFID radio frequency identification
  • IrDA infrared data association
  • UWB ultra-wideband
  • Bluetooth Bluetooth
  • apparatus 2000 may be configured by one or more application specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable Gate array (FPGA), controller, microcontroller, microprocessor or other electronic components are implemented for executing the above access method.
  • ASICs application specific integrated circuits
  • DSPs digital signal processors
  • DSPDs digital signal processing devices
  • PLDs programmable logic devices
  • FPGA field programmable Gate array
  • controller microcontroller, microprocessor or other electronic components are implemented for executing the above access method.
  • the above-mentioned device 2000 can be an independent electronic device or a part of an independent electronic device.
  • the electronic device can be an integrated circuit (Integrated Circuit, IC) or a chip, where the integrated circuit can be an IC can also be a collection of multiple ICs; the chip can include but is not limited to the following types: GPU (Graphics Processing Unit, graphics processor), CPU (Central Processing Unit, central processing unit), FPGA (Field Programmable Gate Array, Programmable logic array), DSP (Digital Signal Processor, digital signal processor), ASIC (Application Specific Integrated Circuit, application specific integrated circuit), SOC (System on Chip, SoC, system on a chip or system-level chip), etc.
  • GPU Graphics Processing Unit, graphics processor
  • CPU Central Processing Unit, central processing unit
  • FPGA Field Programmable Gate Array, Programmable logic array
  • DSP Digital Signal Processor, digital signal processor
  • ASIC Application Specific Integrated Circuit
  • SOC System on Chip, SoC, system on a chip or system-level chip
  • the above integrated circuit or chip can be used to execute executable instructions (or codes) to implement the above access method.
  • the executable instructions can be stored in the integrated circuit or chip, or can be obtained from other devices or devices.
  • the integrated circuit or chip includes a processor, a memory, and an interface for communicating with other devices.
  • the executable instructions can be stored in the processor, and when the executable instructions are executed by the processor, the above access method is implemented; or, the integrated circuit or chip can receive the executable instructions through the interface and transmit them to the processor for execution. , to implement the above access method.
  • the present disclosure also provides a computer-readable storage medium on which computer program instructions are stored.
  • the computer-readable storage medium may be a non-transitory computer-readable storage medium including instructions, for example, may be the above-mentioned memory 2004 including instructions, and the above-mentioned instructions may be executed by the processor 2020 of the device 2000 to complete the above-mentioned connection. Entry method.
  • the non-transitory computer-readable storage medium may be ROM, random access memory (RAM), CD-ROM, magnetic tape, floppy disk, optical data storage device, etc.
  • a computer program product comprising a computer program executable by a programmable device, the computer program having a function for performing the above when executed by the programmable device.
  • the code part of the access method.

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Abstract

本公开涉及一种接入方法、装置、存储介质及芯片。该方法包括：终端设备可以确定至少一个候选接入点对应的第一参数，根据第一参数确定接入目标接入点所使用的目标定时提前TA，并根据目标TA接入目标接入点。其中，该候选接入点可以包括目标接入点，接入点可以包括小区和/或波束。这样，终端设备可以根据第一参数确定目标TA，并根据目标TA接入目标接入点，从而可以节省通过随机接入过程确定目标TA的时间，降低切换时延，提高切换过程中的数据传输效率。

Description

接入方法、装置、存储介质及芯片 技术领域
本公开涉及通信技术领域，具体地，涉及一种接入方法、装置、存储介质及芯片。
背景技术
在无线通信系统的切换过程中，网络设备可以响应于终端设备发送的测量上报结果，向终端设备发送切换命令，该切换命令中可以携带目标小区的配置信息。终端设备接收到该切换命令后，终端设备可以与目标小区进行同步，然后发起随机接入过程(Radom Access Channel，RACH)接入目标小区。通过随机接入过程，终端设备可以获取目标小区的定时提前(Timing Advance，TA)，并根据该TA向目标小区发送重配完成消息，以便完成切换。
在相关技术，终端设备切换过程的时延较大，会降低切换过程中的数据传输效率。
发明内容
为克服相关技术中存在的上述问题，本公开提供一种接入方法、装置、存储介质及芯片。
根据本公开实施例的第一方面，提供一种接入方法，所述方法包括：
确定至少一个候选接入点对应的第一参数；其中，所述候选接入点包括目标接入点，接入点为小区和/或波束；
根据所述第一参数确定接入目标接入点所使用的目标定时提前TA；
根据所述目标TA接入所述目标接入点。
根据本公开实施例的第二方面，提供一种接入方法，所述方法包括：
确定至少一个候选接入点对应的第一参数；所述候选接入点包括目标接入点；
根据所述第一参数向终端设备发送第一消息；其中，所述第一消息中包括所述第一参数；所述第一参数用于指示所述终端设备在准备接入目标接入点的情况下，确定接入所述目标接入点所使用的目标定时提前TA，并根据所述目标TA接入所述目标接入点；其中，接入点为小区和/或波束。
根据本公开实施例的第三方面，提供一种接入装置，应用于终端设备，所述装置包括：
第一确定模块，被配置为确定至少一个候选接入点对应的第一参数；其中，所述候选接入点包括目标接入点，接入点为小区和/或波束；
第二确定模块，被配置为根据所述第一参数确定接入目标接入点所使用的目标定时提前TA；
接入模块，被配置为根据所述目标TA接入所述目标接入点。
根据本公开实施例的第四方面，提供一种接入装置，应用于网络设备，所述装置包括：
第三确定模块，被配置为确定至少一个候选接入点对应的第一参数；所述候选接入点包括目标接入点；
第一发送模块，被配置为根据所述第一参数向终端设备发送第一消息；其中，所述第一消息中包括所述第一参数；所述第一参数用于指示所述终端设备在准备接入目标接入点的情况下，确定接入所述目标接入点所使用的目标定时提前TA，并根据所述目标TA接入所述目标接入点；其中，接入点为小区和/或波束。
根据本公开实施例的第五方面，提供一种接入装置，包括：
处理器；
用于存储处理器可执行指令的存储器；
其中，所述处理器被配置为执行本公开第一方面所提供的接入方法的步骤。
根据本公开实施例的第六方面，提供一种接入装置，包括：
处理器；
用于存储处理器可执行指令的存储器；
其中，所述处理器被配置为执行本公开第二方面所提供的接入方法的步骤。
根据本公开实施例的第七方面，提供一种计算机可读存储介质，其上存储有计算机程序指令，该计算机程序指令被处理器执行时实现本公开第一方面所提供的接入方法的步骤。
根据本公开实施例的第八方面，提供一种计算机可读存储介质，其上存储有计算机程序指令，该计算机程序指令被处理器执行时实现本公开第二方面所提供的接入方法的步骤。
根据本公开实施例的第九方面，提供一种芯片，包括：处理器和接口；所述处理器用于读取指令以执行本公开第一方面所提供的接入方法的步骤，
根据本公开实施例的第十方面，提供一种芯片，包括：处理器和接口；所述处理器用于读取指令以执行本公开第二方面所提供的接入方法的步骤。
本公开的实施例提供的技术方案可以包括以下有益效果：终端设备可以确定至少一个候选接入点对应的第一参数，根据第一参数确定接入目标接入点所使用的目标定时提前TA，并根据目标TA接入目标接入点。其中，该候选接入点可以包括目标接入点，接入点可以包括小区和/或波束。这样，终端设备可以根据第一参数确定目标TA，并根据目标TA接入目标接入点，从而可以节省通过随机接入过程确定目标TA的时间，降低切换时延，提高切换过程中的数据传输效率。
应当理解的是，以上的一般描述和后文的细节描述仅是示例性和解释性的，并不能限制本公开。
附图说明
此处的附图被并入说明书中并构成本说明书的一部分，示出了符合本公开的实施例，并与说明书一起用于解释本公开的原理。
图1是根据一示例性实施例示出的一种通信系统的示意图。
图2是根据一示例性实施例示出的一种接入方法的流程图。
图3是根据一示例性实施例示出的一种接入方法的流程图。
图4是根据一示例性实施例示出的一种接入方法的流程图。
图5是根据一示例性实施例示出的一种接入方法的流程图。
图6是根据一示例性实施例示出的一种网络设备确定第一参数的方法的流程图。
图7是根据一示例性实施例示出的一种接入方法的流程图。
图8是根据一示例性实施例示出的一种接入方法的流程图。
图9是根据一示例性实施例示出的一种接入装置的框图。
图10是根据一示例性实施例示出的一种接入装置的框图。
图11是根据一示例性实施例示出的一种接入装置的框图。
图12是根据一示例性实施例示出的一种接入装置的框图。
图13是根据一示例性实施例示出的一种接入装置的框图。
具体实施方式
这里将详细地对示例性实施例进行说明，其示例表示在附图中。下面的描述涉及附图时，除非另有表示，不同附图中的相同数字表示相同或相似的要素。以下示例性实施例中所描述的实施方式并不代表与本公开相一致的所有实施方式。相反，它们仅是与如所附权利要求书中所详述的、本公开的一些方面相一致的装置和方法的例子。
需要说明的是，本公开中所有获取信号、信息或数据的动作都是在遵照所在地国家相应的数据保护法规政策的前提下，并获得由相应装置所有者给予授权的情况下进行的。
在本公开的描述中，使用的术语如“第一”、“第二”等是用于区别类似的对象，而不必理解为特定的顺序或先后次序。另外，在未作相反说明的情况下，在参考附图的描述中，不同附图中的同一标记表示相同的要素。
在本公开的描述中，除非另有说明，“多个”是指两个或多于两个，其它量词与之类似；“至少一项(个)”、“一项(个)或多项(个)”或其类似表达，是指的这些项(个)中 的任意组合，包括单项(个)或复数项(个)的任意组合。例如，至少一项(个)a，可以表示任意数目个a；再例如，a，b和c中的一项(个)或多项(个)，可以表示：a，b，c，a-b，a-c，b-c，或a-b-c，其中a，b，c可以是单个，也可以是多个；“和/或”是一种描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B这三种情况，其中A，B可以是单数或者复数。
在本公开实施例中尽管在附图中以特定的顺序描述操作或步骤，但是不应将其理解为要求按照所示的特定顺序或是串行顺序来执行这些操作或步骤，或是要求执行全部所示的操作或步骤以得到期望的结果。在本公开的实施例中，可以串行执行这些操作或步骤；也可以并行执行这些操作或步骤；也可以执行这些操作或步骤中的一部分。
下面首先介绍本公开实施例的实施环境。
本公开实施例的技术方案可以应用于各种通信系统。该通信系统可以包括4G(the 4th Generation，第四代)通信系统、5G(the 5th Generation，第五代)通信系统、和其他未来的无线通信系统(比如6G)中的一种或多种。该通信系统也可以包括陆上公用移动通信网(Public Land Mobile Network，PLMN)网络、设备到设备(Device-to-Device，D2D)通信系统、机器到机器(Machine to Machine，M2M)通信系统、物联网(Internet of Things，IoT)通信系统、车联网(Vehicle-to-Everything，V2X)通信系统或者其他通信系统中的一种或多种。
图1是根据一示例性实施例示出的一种通信系统的示意图，如图1所示，该通信系统可以包括终端设备150和网络设备160。该通信系统可以用于支持4G网络接入技术，例如长期演进(Long Term Evolution，LTE)接入技术，或者，5G网络接入技术，如新型无线入技术(New Radio Access Technology，New RAT)，或者，其他未来的无线通信技术。需要说明的是，在该通信系统中，网络设备与终端设备的数量均可以为一个或多个，图1所示通信系统的网络设备与终端设备的数量仅为适应性举例，本公开对此不做限定。
图1中的网络设备可用于支持终端接入，例如，该网络设备可以是LTE中的演进型基站(evolutional Node B，eNB或eNodeB)；该网络设备也可以是5G网络中的下一代基站(the next Generation Node B，gNB或gNodeB)；该网络设备也可以是5G网络中的无线接入网(NG Radio Access Network，NG-RAN)设备；该网络设备也可以是未来演进的公共陆地移动网络(Public Land Mobile Network，PLMN)中的基站、宽带网络业务网关(Broadband Network Gateway，BNG)、汇聚交换机或非3GPP(3rd Generation Partnership Project，第三代合作伙伴项目)接入设备等。可选地，本公开实施例中的网络设备可以包括各种形式的基站，例如：宏基站、微基站(也称为小站)、中继站、接入点、5G基站或未来的基站、卫星、传输点(Transmitting and Receiving Point，TRP)、发射点(Transmitting Point，TP)、移动交换中心以及设备到设备(Device-to-Device，D2D)、机器到机器(Machine-to-Machine，M2M)、物联网(Internet of Things，IoT)、车联网(Vehicle-to-Everything，V2X)或其他通信中承担基站功能的设备等，本公开实施例对此不作具体限定。为方便描述，本公开所有实施例中，为终端设备提供无线通信功能的装置统称为网络设备或基站。
图1中的终端设备可以是一种提供语音或者数据连通性的电子设备，例如，该终端设备也可以称为用户设备(User Equipment，UE)，用户单元(Subscriber Unit)，移动台(Mobile Station)，站台(Station)，终端(Terminal)等。示例地，该终端设备可以包括智能手机、智能可穿戴设备、智能音箱、智能平板、无线调制解调器(modem)、无线本地环路(Wireless Local Loop，WLL)台、PDA(Personal Digital Assistant，个人数字助理)、CPE(Customer Premise Equipment，客户终端设备)等。随着无线通信技术的发展，可以接入通信系统、可以与通信系统的网络设备进行通信、可以通过通信系统与其它物体进行通信的设备、或者、两个或多个设备之间可以直接通信的设备都可以是本公开实施例中的终端设备；例如，智能交通中的终端和汽车、智能家居中的家用设备、智能电网中的电力抄表仪器、电压监测仪器、环境监测仪器、智能安全网络中的视频监测仪器、收款机等。在本公开实施例中，终端设备可以与网络设备进行通信。终端设备可以是静态固定的，也可以是移动的，本公开对此不作限定。
在一些实施例中，上述网络设备可以包括至少一个基站、每个基站可以包括至少一个小区。进一步地，每个小区还可以包括至少一个波束，示例地，网络设备中的部分或全部小区可以是支持波束赋形(Beamforming)的小区，每个小区可以配置一个或多个波束。
上述通信系统可以支持终端设备进行移动性切换，例如，终端设备可以在两个波束之间切换，终端设备可以在两个小区之间切换，终端设备也可以在两个基站之间切换。在无线通信系统的切换过程中，网络设备可以响应于终端设备发送的测量上报结果，向终端设备发送切换命令，该切换命令中可以携带目标小区的配置信息。终端设备接收到该切换命令后，终端设备可以与目标小区进行同步，然后发起随机接入(Radom Access Channel，RACH)过程接入目标小区。通过随机接入过程，终端设备可以获取目标小区的定时提前(Timing Advance,TA)，并根据该TA向目标小区发送重配完成消息，以便完成切换。
在一些实施例中，网络设备可以在切换命令中指示终端设备接入目标小区所使用的TA，这样，终端设备可以不进行随机接入过程，即跳过RACH，直接向目标小区发送重配完成消息。这样，可以减少切换时延，提高数据传输效率。
在一些实施例中，为了提高切换的鲁棒性，终端设备可以进行条件切换(Conditional Handover，CHO)，在条件切换过程中，网络设备可以提前为终端设备配置CHO切换命令，包括切换目标小区配置和切换触发条件，其中切换目标小区配置可以是目标小区提供的配置参数。终端设备可以存储从网络设备接收到的CHO切换命令，进行RRM(Radio Resource Management，无线资源管理)测量，判断CHO切换命令中指示的切换触发条件是否满足。当切换触发条件得到满足时，终端设备可以自行执行切换。这样可以避免由于基站发送切换命令时机过晚而导致的无线链路失败。
需要说明的是，终端设备向目标小区切换时，不同的小区或波束使用的TA可能不同，在基于条件的切换过程中，网络设备并不知道何时进行切换，终端设备在不同位置或时间进行切换时使用的TA可能不同，因此无法在CHO命令中指示目标小区的TA。导致终端设备在基于条件的切换流程中，无法跳过RACH阶段，导致切换时延仍然偏大。
为了解决上述问题，本公开提供了一种接入方法、装置、存储介质及芯片。
图2是根据一示例性实施例示出的一种接入方法的流程图。该方法可以应用于上述通信系统中的终端设备。如图2所示，该方法可以包括：
S201、终端设备确定至少一个候选接入点对应的第一参数。
其中，该候选接入点可以包括目标接入点，接入点可以为小区和波束中的一项或多项。例如，在一种可能的实施方式中，终端设备可以确定至少一个候选小区对应第一参数，该候选小区可以包括目标小区；在另一种可能的实施方式中，终端设备可以确定至少一个候选波束对应的第一参数，该候选波束可以包括目标波束；在另外一种可能的实施方式中，终端设备可以确定至少一个候选小区及候选波束对应第一参数。其中，该目标接入点对应的第一参数可以用于指示终端设备确定接入该目标接入点所使用的定时提前TA。
在一些实施例中，该第一参数可以是终端设备预先设置的参数。
在另一些实施例中，该第一参数可以是由网络设备配置的参数。例如，网络设备发送配置给终端，以将相应的参数配置给终端。
终端设备可以响应于接收到网络设备发送的第一消息，根据该第一消息获取该第一参数。即，网络设备可以向终端设备发送第一消息，在该第一消息中包括第一参数。
S202、终端设备根据第一参数确定接入目标接入点所使用的目标定时提前TA。
需要说明的是，终端设备可以根据预设条件确定是否准备接入目标接入点。其中，该预设条件可以包括切换条件、RRC(Radio Resource Control，无线资源控制)重建条件或其他条件；终端设备接入该目标接入点的方式可以包括基于切换的接入、基于RRC重建的接入或直接接入，本公开对此不作限定。
例如，终端设备可以在接收到网络设备发送的切换命令的情况下，根据切换命令的指示准备接入目标接入点，也就是基于切换命令的指示发起向目标接入点的切换接入。
再例如，终端设备可以基于CHO流程，在满足切换条件的情况下，自行准备接入目标接入点，也就是基于CHO流程发起向目标接入点的切换接入。
在一些实施例中，在终端设备确定准备接入目标接入点的情况下，可以获取该目标接入点对应的第一参数，并根据该第一参数确定接入该目标接入点所使用的目标TA。
S203、终端设备根据目标TA接入目标接入点。
示例地，终端设备可以根据该目标TA，基于无随机接入信道RACH-less方式接入目标接入点。示例地，终端设备可以根据目标TA跳过随机接入过程，直接根据该目标TA向目标接入点发送RRC配置完成消息，从而接入该目标接入点。
需要说明的是，本公开示出的实施例中，目标接入点可以包括目标小区和目标波束中的一项或多项；候选接入点也可以包括候选小区和候选波束中的一项或多项。
在一些实施例中，上述目标接入点可以包括目标小区。该目标小区可以与终端设备的服务小区不同，也可以与服务小区相同。其中，服务小区表征终端设备当前使用的小区。
这样，终端设备可以获取不同小区的目标TA。
在另一些实施例中，上述目标接入点可以是目标波束。该目标波束可以与终端设备的服务波束不同，也可以与服务波束相同。其中，服务波束表征终端设备当前使用的波束。进一步地，该目标波束与服务波束可以在相同的小区下，也可以在不同的小区下。
在另外一些实施例中，上述目标接入点可以包括目标小区和目标波束。示例地，终端设备可以从服务小区的服务波束，切换至目标小区的目标波束进行接入。
这样，终端设备可以获取不同波束的目标TA。
采用上述方法，终端设备可以确定至少一个候选接入点对应的第一参数，根据第一参数确定接入目标接入点所使用的目标定时提前TA，并根据目标TA接入目标接入点。其中，该候选接入点可以包括目标接入点，接入点可以包括小区和/或波束。这样，终端设备可以根据第一参数确定目标TA，并根据目标TA接入目标接入点，从而可以节省通过随机接入过程确定目标TA的时间，降低切换时延，提高切换过程中的数据传输效率。
图3是根据一示例性实施例示出的一种接入方法的流程图。如图3所示，该方法可以包括：
S301、终端设备接收到网络设备发送的第一消息。
其中，该第一消息可以包括至少一个候选接入点对应的第一参数。这样，终端设备可以在接收到第一消息的情况下，获取该第一消息中的至少一个候选接入点对应的第一参数。
该第一消息可以是网络设备发送给终端设备的任意消息或数据报文。
在一些实施例中，该第一消息可以是网络设备发送给终端设备的任意RRC消息，例如，RRC重配置消息、RRC接入成功消息或者其他RRC消息。
在另一些实施例中，该第一消息可以是除了切换命令消息之外的其他RRC消息。示例地，该第一消息可以是用于指示终端设备进行CHO切换的消息，例如CHO切换命令消息。
在另外一些实施例中，该第一消息也可以是系统消息，网络设备可以通过系统消息广播至少一个候选接入点对应的第一参数。
其中，该候选接入点可以包括目标接入点，接入点可以为小区和/或波束。
在接入点包括小区的情况下，该候选接入点可以包括服务小区和相邻小区中的一项或多项。该服务小区可以是终端设备当前接入或驻留的小区，例如，该服务小区可以为终端设备提供无线通信服务。
在一些实施例中，该相邻小区可以包括服务小区配置了小区相邻关系的小区。在另一些实施例中，该相邻小区可以包括与该服务小区的距离小于或等于预设邻区距离阈值的小区。在另外一些实施例中，该相邻小区可以包括与服务小区配置了小区相邻关系且与该服务小区的距离小于或等于预设邻区距离阈值的小区。在又一些实施例中，该相邻小区可以包括与服务小区配置了小区相邻关系，或者，与该服务小区的距离小于或等于预设邻区距离阈值的小区。其中，上述预设邻区距离阈值可以是预先设置的任意距离阈值。
在接入点为波束的情况下，该候选接入点可以包括服务波束和相邻波束中的一项或多项。该服务波束可以是终端设备当前接入或驻留的波束，例如，该服务波束可以为终端设备提供无线通信服务。
同样地，在一些实施例中，该相邻波束可以包括服务波束配置了波束相邻关系的波束。在另一些实施例中，该相邻波束可以包括与该服务波束的距离小于或等于预设邻波束距离阈值的波束。在另外一些实施例中，该相邻波束可以包括与服务波束配置了波束相邻关系且与该服务波束的距离小于或等于预设邻波束距离阈值的波束。在又一些实施例中，该相邻波束可以包括与服务波束配置了波束相邻关系，或者，与该服务波束的距离小于或等于预设邻波束距离阈值的波束。其中，上述预设邻波束距离阈值可以是预先设置的任意距离阈值。
S302、终端设备在确定待接入的目标接入点的情况下，根据第一参数确定接入该目标接入点所使用的目标定时提前TA。
S303、终端设备根据目标TA接入目标接入点。
这样，终端设备可以从网络设备接收第一参数，根据第一参数确定目标TA，并根据目标TA接入目标接入点，从而可以节省通过随机接入过程确定目标TA的时间，降低切换时延，提高切换过程中的数据传输效率。
上述第一参数可以包括至少一个候选接入点的接入点标识，以及每个接入点标识对应的接入点TA参数；这样，终端设备可以根据第一参数，确定目标接入点标识对应的目标接入点TA参数；其中，该目标接入点标识可以为待接入的目标接入点对应的接入点标识；根据目标接入点TA参数确定目标TA。
其中，该接入点标识可以包括小区标识和波束标识中的一种或多种。示例地，该小区标识可以包括CGI(全局标识符Cell Global Identifier)，该波束标识可以通过TCI(Transmission Configuration Indicator，传输配置指示)确定。
在一些实施例中，上述接入点标识可以包括小区标识，上述接入点TA参数可以包括小区TA参数。在另一些实施例中，上述接入点标识可以包括波束标识，上述接入点TA参数可以包括波束TA参数。在另外一些实施例中，上述接入点标识可以包括小区标识和波束标识，上述接入点TA参数可以包括小区TA参数和波束TA参数。
在一些实施例中，上述接入点TA参数可以包括待定TA。该待定TA可以用于指示终端设备获取该接入点标识对应的TA长度。
示例地，该待定TA可以包括接入点TA长度(该接入点TA长度可以为大于或等于0的任意数值)或接入点TAG(Timing Advance Group，定时提前组)标识，也就相当于上述接入点TA参数可以包括接入点TA长度或接入点TAG标识。这样，终端设备可以根据该待定TA(或接入点TA参数)确定目标接入点标识对应的目标TA的长度。例如，可以将该目标接入点标识对应的接入点TA长度作为目标TA的TA长度；或者，根据目标接入点标识对应的接入点TAG标识确定目标TA的TA长度。
需要说明的是，终端设备可以存储N个定时提前组TAG，其中N可以是大于或等于1的正整数，例如N为4。每个TAG中可以包括至少一个小区，同一个TAG中的小区使用相同的TA长度。每个TAG可以通过TAG标识进行区分，也就是不同的TAG具有不同的TAG标识。另外，每个小区可以属于一个TAG。这样，通过TAG标识，可以确定对应的TA长度。
在一些实施例中，上述待定TA还可以包括TA偏移量N TA offset。
在另外一些实施例中，上述目标接入点TA参数可以包括至少一个待定TA以及每个待定TA对应的第一条件信息。
这样，终端设备可以根据第一条件信息确定终端设备是否满足TA生效条件；在确定终端设备满足TA生效条件的情况下，根据该第一条件信息对应的待定TA确定目标TA。
需要说明的是，该待定TA同样可以包括接入点TA长度或接入点TAG标识。
在一些实施例中，在上述接入点TA参数包括待定TA而未包括上述第一条件信息的情 况下，终端设备可以无需进行条件判断，直接获取目标接入点对应的目标TA。
上述第一条件信息包括预设信号条件信息、预设位置条件信息和预设时间条件信息中的一项或多项。以下分别进行说明：
信息一、预设信号条件信息。
该预设信号条件信息可以用于指示终端设备根据检测到的目标接入点的无线信号强度确定终端设备是否满足TA生效条件。
在一些实施例中，在该第一条件信息包括预设信号条件信息的情况下，该TA生效条件可以包括终端设备检测到的目标接入点的无线信号强度处于目标信号强度范围，该目标信号强度范围可以是根据预设信号条件信息确定的信号强度范围。
该无线信号强度可以包括终端设备检测到的RSRP(Reference Signal Receiving Power，参考信号接收功率)或RSSI(Received Signal Strength Indicator，接收信号强度指示)。
以该无线信号强度为RSRP为例，该预设信号条件信息可以包括至少一个RSRP与TA的对应关系，示例地，可以包括多个RSRP范围与TA的对应关系。例如，RSRP小于第一RSRP值的信号条件对应的TA可以为第一待定TA；RSRP在第一RSRP值到第二RSRP值之间(例如大于或等于第一RSRP值且小于第二RSRP值)的信号条件对应的TA可以为第二待定TA；RSRP在第二RSRP值到第三RSRP值之间(例如大于或等于第二RSRP值且小于第三RSRP值)的信号条件对应的TA可以为第三待定TA；RSRP大于或等于第三RSRP值的信号条件对应的TA可以为第四待定TA。上述第一至第四RSRP的值可以根据经验设置，例如，上述RSRP值的大小关系可以为：第一RSRP值<第二RSRP值<第三RSRP值<第四RSRP值。在另一些实施例中，也可以设置更多或更少的区间范围，例如，可以通过M个从小到大排列的RSRP划分得到M+1个RSRP区间范围，每个RSRP范围对应一个待定TA。
这样，当终端设备检测到目标接入点的RSRP处于目标信号强度范围时，可以根据该目标信号强度范围对应的待定TA确定目标TA。例如，当终端设备检测到目标接入点的RSRP大于或等于第一RSRP值且小于第二RSRP值时，可以将上述第二待定TA作为目标TA。
需要说明的是，该预设信号条件信息可以包括终端设备的候选接入点对应的信号条件信息。该候选接入点可以包括一个或多个。例如，在接入点为小区的情况下，该候选接入点可以包括服务小区、切换目标小区和相邻小区中的一项或多项。再例如，在接入点为波束的情况下，该候选接入点可以包括服务波束、切换目标波束和相邻波束中的一项或多项。
这样，终端设备可以根据预设信号条件信息确定终端设备是否满足TA生效条件，并在确定终端设备满足TA生效条件的情况下，根据该预设信号条件信息对应的待定TA确定目标TA。
信息二、预设位置条件信息。
该预设位置条件信息可以用于指示终端设备根据终端设备的位置信息确定终端设备是否满足TA生效条件。
在一些实施例中，在第一条件信息包括预设位置条件信息的情况下，该预设位置条件信息可以包括至少一个第一待定小区；该TA生效条件可以包括终端设备的服务小区包含在上述至少一个第一待定小区中。
示例地，终端设备可以根据该预设位置条件信息确定至少一个第一待定小区，在服务小区包含在第一待定小区中的情况下，可以确定终端设备满足TA生效条件。从而可以根据该预设位置条件信息对应的待定TA确定目标TA。
在另一些实施例中，在第一条件信息包括预设位置条件信息的情况下，预设位置条件信息可以包括至少一个第二待定小区以及每个第二待定小区对应的第一距离参数；该TA生效条件可以包括终端设备与第二待定小区对应的天线的第一距离小于或等于第一距离阈值，第一距离阈值为根据第一距离参数确定的距离阈值。
示例地，终端设备可以根据第一距离参数确定第一距离阈值，并在终端设备与第二待定小区的距离小于或等于第一距离阈值的情况下，可以确定终端设备满足TA生效条件，根据 该预设位置条件信息对应的待定TA确定目标TA。
在本实施例中，终端设备根据第一距离参数确定第一距离阈值的方式可以有多种：例如，终端设备可以将第一距离参数作为第一距离阈值。再例如，终端设备可以根据预设距离参数阈值对应关系确定该第一距离参数对应的第一距离阈值。该预设距离参数阈值对应关系可以终端设备和网络设备均设置的相同的对应关系，例如，第一距离参数为1可以对应第一距离阈值为30，第一距离参数为2可以对应第一距离阈值为50，第一距离参数为3可以对应第一距离阈值为100，等等。
在另外一些实施例中，在第一条件信息包括预设位置条件信息的情况下，预设位置条件信息包括预设位置参数和第二距离参数；TA生效条件包括终端设备与预设位置的第二距离小于或等于第二距离阈值，预设位置为根据预设位置参数确定的地理位置，第二距离阈值为根据第二距离参数确定的距离阈值。
示例地，终端设备可以根据第二距离参数确定第二距离阈值，并在终端设备与预设位置的距离小于或等于第二距离阈值的情况下，可以确定终端设备满足TA生效条件，根据该预设位置条件信息对应的待定TA确定目标TA。其中，该预设位置可以是根据预设位置参数确定的地理位置。
示例地，该预设位置参数可以是经纬度参数，根据该经纬度参数可以确定预设位置。
同样地，终端设备根据第二距离参数确定第二距离阈值的方式也可以有多种：例如，终端设备可以将第二距离参数作为第二距离阈值。再例如，终端设备可以根据预设距离参数阈值对应关系确定该第二距离参数对应的第二距离阈值。
这样，终端设备可以根据预设位置条件信息确定终端设备是否满足TA生效条件，并在确定终端设备满足TA生效条件的情况下，根据该预设位置条件信息对应的待定TA确定目标TA。
信息三、预设时间条件信息。
该预设时间条件信息可以用于指示终端设备根据发起接入的时间确定终端设备是否满足TA生效条件。
示例地，在第一条件信息包括预设时间条件信息的情况下，预设时间条件信息包括预设时间参数；TA生效条件包括终端设备的当前时间处于第一时间范围内；第一时间范围为根据预设时间参数确定的时间范围。
在一些实施例中，预设时间参数包括第一绝对时间和第一时长。上述第一时间范围可以通过以下方式确定：根据第一绝对时间和第一时长，确定第一时间范围。
其中，上述第一绝对时间和第一时长可以是网络设备根据预先配置的参数确定的时间。
示例地，可以将第一绝对时间与第一时长相加得到的时间范围作为第一时间范围。例如，该第一绝对时间可以是预设的一个绝对时间(例如19点)，第一时长可以是预设的一个时间长度(例如30分钟)，这样，可以将19点至19点30分之间的时间范围作为第一时间范围。
这样，在终端设备的当前时间处于第一时间范围内的情况下，可以确定终端设备满足目标TA生效条件。
在一些实施例中，该预设时间参数包括第二时长和第一预设条件；上述第一时间范围可以通过以下方式确定：将终端设备满足第一预设条件开始的第二时长作为第一时间范围。
示例地，可以通过第一定时器确定该第一时间范围，在终端设备满足第一预设条件的情况下，可以启动或重启第一定时器，该第一定时器的时长可以为第二时长，在该第一定时器运行时长范围内，均可以确定括终端设备的当前时间处于第一时间范围内，也就是可以确定终端设备满足TA生效条件。
上述第一预设条件可以包括以下条件中的一项或多项：
条件一、终端设备接收到网络设备发送的第一消息。
示例地，可以在接收到网络设备发送的第一消息的情况下，根据第二时长启动或重启上述第一定时器。
条件二、终端设备的当前时间等于第二绝对时间。
其中，该第二绝对时间可以是终端设备根据从网络设备接收到的时间参数确定的。
示例地，可以在终端设备的当前时间等于第二绝对时间的情况下，根据第二时长启动或重启上述第一定时器。
条件三、终端设备根据预设信号条件信息确定终端设备满足TA生效条件。
条件四、终端设备根据预设位置条件信息确定终端设备满足TA生效条件。
示例地，可以在终端设备触发目标事件的情况下，根据第二时长启动或重启上述第一定时器。该目标事件可以包括上述条件三或条件四对应的事件。
这样，终端设备可以根据预设时间条件信息确定终端设备是否满足TA生效条件，并在确定终端设备满足TA生效条件的情况下，根据该预设时间条件信息对应的待定TA确定目标TA。
采用上述方法，终端设备可以根据上述第一条件信息中的任意一项或多项，确定终端设备是否满足TA生效条件；在确定终端设备满足TA生效条件的情况下，根据该第一条件信息对应的待定TA确定目标TA。
在一些实施例中，终端设备满足上述第一条件信息中的任意一项的情况下，可以根据该第一条件信息对应的待定TA确定目标TA。例如，可以将该待定TA作为目标TA。
在另一些实施例中，终端设备满足上述第一条件信息中的多项的情况下，可以根据该多项第一条件信息对应的待定TA确定目标TA。例如，可以将多项第一条件信息对应的待定TA的平均值、最大值或最小值作为目标TA。
这样，终端设备可以根据各种条件信息确定目标TA，以便根据该目标TA接入目标接入点(例如目标小区或目标波束)。
在本公开的一些实施例中，终端设备还可以确定上行信道资源参数，并在根据第一参数确定接入目标接入点所使用的目标TA的情况下，根据该上行信道资源参数进行上行传输。
示例地，终端设备可以根据该上行信道资源参数通过目标接入点(目标小区或目标波束)进行上行传输。
其中，该上行信道资源参数可以包括用于指示上行PUSCH(Physical Uplink Shared Channel，物理上行共享信道)资源的参数。该上行PUSCH资源可以是网络设备提供的一个可用的PUSCH资源，例如预留PUSCH资源。
在一些实施例中，终端设备可以接收网络设备发送的第二消息，该第二消息可以包括上行信道资源参数。这样，终端设备可以在接收到网络设备发送的第二消息的情况下，获取第二消息中的上行信道资源参数，并根据该上行资源参数确定上行PUSCH资源。其中，该第二消息与第一消息可以相同，也可以不同。
终端设备根据上行信道资源参数进行上行传输的方式可以有多种，示例地：
在一些实施例中，终端设备可以根据该上行信道资源参数发送上行RRC消息。该上行RRC消息可以包括RRC重配完成消息、RRC重配失败消息或者其他RRC消息。
在另一些实施例中，终端设备可以根据该上行信道资源参数发送上行数据。
在另外一些实施例中，终端设备可以根据该上行信道资源参数发送上行RRC消息和上行数据。
这样，终端设备可以在确定目标TA的情况下，根据上行信道资源参数进行上行传输，从而可以降低切换导致的业务中断时延，提高数据传输效率。
图4是根据一示例性实施例示出的一种接入方法的流程图。如图4所示，该方法可以包括：
S401、终端设备接收网络设备发送的第一消息。
该第一消息可以是网络设备发送给终端设备的任意消息或数据报文。示例地，该第一消息可以是用于指示终端设备进行CHO切换的消息，例如CHO切换命令消息。
在一些实施例中，该第一消息中可以包括至少一个候选接入点对应的第一参数。
在另一些实施例中，该第一消息中还可以包括至少一个候选接入点对应的上行信道资源参数。
在另外一些实施例中，该第一消息中还可以包括至少一个候选接入点对应的第一参数和上行信道资源参数。
S402、终端设备根据该第一消息，确定至少一个候选接入点对应的第一参数。
其中，该第一参数可以用于指示终端设备确定接入该候选接入点所使用的定时提前TA。示例地，第一参数可以包括至少一个候选接入点的接入点标识，以及每个接入点标识对应的接入点TA参数。进一步地，该接入点TA参数可以包括至少一个待定TA以及每个待定TA对应的第一条件信息。
S403、终端设备根据该第一消息，确定至少一个候选接入点对应的上行信道资源参数。
S404、终端设备确定待接入的目标接入点。
需要说明的是，上述S402、S403和S404步骤可以按照任意顺序执行，也可以并行执行，本公开对此不作限定。
S405、终端设备根据第一参数确定接入该目标接入点所使用的目标定时提前TA，并根据该上行信道资源参数确定接入该目标接入点所使用的目标上行信道资源。
S406、终端设备根据目标TA和目标上行信道资源接入目标接入点。
示例地，终端设备可以根据该目标TA，使用目标上行信道资源(例如PUSCH资源)向该目标接入点发送RRC重配完成消息或者上行数据，以便接入该目标接入点进行通信。
这样，终端设备可以根据目标TA和目标上行信道资源接入目标接入点，从而可以进一步降低切换导致的业务中断时延，提高数据传输效率。
图5是根据一示例性实施例示出的一种接入方法的流程图。该方法可以应用于上述通信系统中的网络设备。如图5所示，该方法可以包括：
S501、网络设备确定至少一个候选接入点对应的第一参数。
其中，该候选接入点可以包括目标接入点，接入点可以为小区和/或波束。例如，在一种可能的实施方式中，网络设备可以确定至少一个候选小区对应第一参数，该候选小区可以包括目标小区；在另一种可能的实施方式中，网络设备可以确定至少一个候选波束对应的第一参数，该候选波束可以包括目标波束；在另外一种可能的实施方式中，网络设备可以确定至少一个候选小区及候选波束对应第一参数。该目标接入点对应的第一参数可以用于指示终端设备确定接入该目标接入点所使用的定时提前TA。
在接入点包括小区的情况下，该候选接入点可以包括网络设备确定的服务小区和相邻小区中的一项或多项。该服务小区可以是终端设备当前接入或驻留的小区，例如，该服务小区可以为终端设备提供无线通信服务。
在一些实施例中，该相邻小区可以包括服务小区配置了小区相邻关系的小区。在另一些实施例中，该相邻小区可以包括与该服务小区的距离小于或等于预设邻区距离阈值的小区。在另外一些实施例中，该相邻小区可以包括与服务小区配置了小区相邻关系且与该服务小区的距离小于或等于预设邻区距离阈值的小区。在又一些实施例中，该相邻小区可以包括与服务小区配置了小区相邻关系，或者，与该服务小区的距离小于或等于预设邻区距离阈值的小区。其中，上述预设邻区距离阈值可以是预先设置的任意距离阈值。
在接入点包括波束的情况下，该候选接入点可以包括服务波束和相邻波束中的一项或多项。该服务波束可以是终端设备当前接入或驻留的波束，例如，该服务波束可以为终端设备提供无线通信服务。
同样地，在一些实施例中，该相邻波束可以包括服务波束配置了波束相邻关系的波束。在另一些实施例中，该相邻波束可以包括与该服务波束的距离小于或等于预设邻波束距离阈值的波束。在另外一些实施例中，该相邻波束可以包括与服务波束配置了波束相邻关系且与该服务波束的距离小于或等于预设邻波束距离阈值的波束。在又一些实施例中，该相邻波束可以包括与服务波束配置了波束相邻关系，或者，与该服务波束的距离小于或等于预设邻波 束距离阈值的波束。其中，上述预设邻波束距离阈值可以是预先设置的任意距离阈值。
S502、网络设备根据第一参数向终端设备发送第一消息。
其中，该第一消息中可以包括上述第一参数；该第一参数可以用于指示终端设备在准备接入目标接入点的情况下，确定接入目标接入点所使用的目标定时提前TA，并根据目标TA接入目标接入点。
需要说明的是，终端设备可以根据预设条件确定是否准备接入目标接入点。其中，该预设条件可以包括切换条件、RRC(Radio Resource Control，无线资源控制)重建条件或其他条件；终端设备接入该目标接入点的方式可以包括基于切换的接入、基于RRC重建的接入或直接接入，本公开对此不作限定。
例如，终端设备可以在接收到网络设备发送的切换命令的情况下，根据切换命令的指示准备接入目标接入点，也就是基于切换命令的指示发起向目标接入点的切换接入。
再例如，终端设备可以基于CHO流程，在满足切换条件的情况下，自行准备接入目标接入点，也就是基于CHO流程发起向目标接入点的切换接入。
采用上述方法，网络设备可以确定至少一个候选接入点对应的第一参数，并根据第一参数向终端设备发送第一消息。其中，该候选接入点可以包括目标接入点，接入点可以包括小区和/或波束；该第一消息中可以包括第一参数；该第一参数可以用于指示终端设备在准备接入目标接入点的情况下，确定接入目标接入点所使用的目标定时提前TA，并根据目标TA接入目标接入点。这样，网络设备可以指示终端设备根据第一参数确定目标TA，并根据目标TA接入目标接入点，从而可以节省通过随机接入过程确定目标TA的时间，降低切换时延，提高切换过程中的数据传输效率。
图6是根据一示例性实施例示出的一种网络设备确定第一参数的方法的流程图。如图6所示，该方法可以包括：
S601、网络设备确定至少一个候选接入点的接入点标识。
其中，该接入点标识可以包括小区标识和波束标识中的一种或多种。示例地，该小区标识可以包括CGI(全局标识符Cell Global Identifier)，该波束标识可以通过TCI(Transmission Configuration Indication，传输配置指示)确定。
S602、网络设备确定每个接入点标识对应的接入点TA参数。
其中，该接入点TA参数可以是网络设备预先配置的参数，示例地，网络设备可以预先配置至少一个接入点标识，以及每个接入点标识对应的接入点TA参数。
在一些实施例中，上述接入点标识可以包括小区标识，上述接入点TA参数可以包括小区TA参数。在另一些实施例中，上述接入点标识可以包括波束标识，上述接入点TA参数可以包括波束TA参数。在另外一些实施例中，上述接入点标识可以包括小区标识和波束标识，上述接入点TA参数可以包括小区TA参数和波束TA参数。
S603、网络设备根据接入点标识和接入点TA参数，获取第一参数。
这样，网络设备可以确定至少一个候选接入点对应的第一参数。
在一些实施例中，上述接入点TA参数可以包括待定TA。该待定TA可以用于指示终端设备获取该接入点标识对应的TA长度。
示例地，该待定TA可以包括接入点TA长度(该接入点TA长度可以为大于或等于0的任意数值)或接入点TAG标识，也就相当于上述接入点TA参数可以包括接入点TA长度或接入点TAG标识。这样，终端设备可以根据该待定TA(或接入点TA参数)确定目标接入点标识对应的目标TA的长度。例如，可以将该目标接入点标识对应的接入点TA长度作为目标TA的TA长度；或者，根据目标接入点标识对应的接入点TAG标识确定目标TA的TA长度。
在一些实施例中，上述待定TA还可以包括TA偏移量N TA offset。
在另外一些实施例中，上述接入点TA参数可以包括至少一个待定TA以及每个待定TA对应的第一条件信息。
示例地，网络设备可以通过以下方式获取接入点TA参数。
首先，获取接入点标识对应的至少一个待定TA。
其次，确定每个待定TA对应的第一条件信息。
最后，根据待定TA和第一条件信息，确定接入点TA参数。
上述第一条件信息包括预设信号条件信息、预设位置条件信息和预设时间条件信息中的一项或多项。以下分别进行说明：
信息一、预设信号条件信息。
该预设信号条件信息可以用于指示终端设备根据检测到的目标接入点的无线信号强度确定终端设备是否满足TA生效条件。
示例地，在第一条件信息包括预设信号条件信息的情况下，TA生效条件包括终端设备检测到的目标接入点的无线信号强度处于目标信号强度范围，目标信号强度范围为根据预设信号条件信息确定的信号强度范围。
在一些实施例中，在该第一条件信息包括预设信号条件信息的情况下，该TA生效条件可以包括终端设备检测到的目标接入点的无线信号强度处于目标信号强度范围，该目标信号强度范围可以是根据预设信号条件信息确定的信号强度范围。其中，该无线信号强度可以包括终端设备检测到的RSRP或RSSI。
信息二、预设位置条件信息。
该预设位置条件信息可以用于指示终端设备根据终端设备的位置信息确定终端设备是否满足TA生效条件。
在一些实施例中，在第一条件信息包括预设位置条件信息的情况下，该预设位置条件信息可以包括至少一个第一待定小区；该TA生效条件可以包括终端设备的服务小区包含在上述至少一个第一待定小区中。
示例地，该预设位置条件信息可以用于指示终端设备根据该预设位置条件信息确定至少一个第一待定小区，在服务小区包含在第一待定小区中的情况下，确定终端设备满足TA生效条件。从而可以根据该预设位置条件信息对应的待定TA确定目标TA。
在另一些实施例中，在第一条件信息包括预设位置条件信息的情况下，预设位置条件信息可以包括至少一个第二待定小区以及每个第二待定小区对应的第一距离参数；该TA生效条件可以包括终端设备与第二待定小区对应的天线的第一距离小于或等于第一距离阈值，第一距离阈值为根据第一距离参数确定的距离阈值。
示例地，该预设位置条件信息可以用于指示终端设备根据第一距离参数确定第一距离阈值，并在终端设备与第二待定小区的距离小于或等于第一距离阈值的情况下，确定终端设备满足TA生效条件，根据该预设位置条件信息对应的待定TA确定目标TA。
在另外一些实施例中，在第一条件信息包括预设位置条件信息的情况下，预设位置条件信息包括预设位置参数和第二距离参数；TA生效条件包括终端设备与预设位置的第二距离小于或等于第二距离阈值，预设位置为根据预设位置参数确定的地理位置，第二距离阈值为根据第二距离参数确定的距离阈值。
示例地，该预设位置条件信息可以用于指示终端设备根据第二距离参数确定第二距离阈值，并在终端设备与预设位置的距离小于或等于第二距离阈值的情况下，确定终端设备满足TA生效条件，根据该预设位置条件信息对应的待定TA确定目标TA。其中，该预设位置可以是根据预设位置参数确定的地理位置。
信息三、预设时间条件信息。
该预设时间条件信息可以用于指示终端设备根据发起接入的时间确定终端设备是否满足TA生效条件。
示例地，在第一条件信息包括预设时间条件信息的情况下，预设时间条件信息包括预设时间参数；TA生效条件包括终端设备的当前时间处于第一时间范围内；第一时间范围为根据预设时间参数确定的时间范围。
在一些实施例中，预设时间参数包括第一绝对时间和第一时长。上述第一时间范围可以通过以下方式确定：根据第一绝对时间和第一时长，确定第一时间范围。
在一些实施例中，该预设时间参数包括第二时长和第一预设条件；上述第一时间范围可以通过以下方式确定：将终端设备满足第一预设条件开始的第二时长作为第一时间范围。
上述第一预设条件可以包括以下条件中的一项或多项：
条件一、终端设备接收到网络设备发送的第一消息。
条件二、终端设备的当前时间等于第二绝对时间。
其中，该第二绝对时间可以是根据网络设备发送至终端设备的时间参数确定的时间。
条件三、终端设备根据预设信号条件信息确定终端设备满足TA生效条件。
条件四、终端设备根据预设位置条件信息确定终端设备满足TA生效条件。
采用上述方法，网络设备可以指示终端设备根据上述第一条件信息中的任意一项或多项，确定终端设备是否满足TA生效条件；在确定终端设备满足TA生效条件的情况下，根据该第一条件信息对应的待定TA确定目标TA。
在本公开的一些实施例中，网络设备还可以确定上行信道资源参数，并根据上行信道资源参数向终端设备发送第二消息。
其中，该第二消息中可以包括上行信道资源参数。该上行信道资源参数可以用于指示终端设备在根据第一参数确定接入目标接入点所使用的目标TA之后，根据上行信道资源参数进行上行传输。
需要说明的是，该第二消息与第一消息可以相同，也可以不同。
该上行信道资源参数可以包括用于指示上行PUSCH资源的参数。该上行PUSCH资源可以是网络设备提供的一个可用的PUSCH资源，例如预留PUSCH资源。
在一些实施例中，网络设备可以指示终端设备根据该上行信道资源参数发送上行RRC消息，这样，网络设备可以根据该上行信道资源参数接收该终端设备发送的上行RRC消息。该上行RRC消息可以包括RRC重配完成消息、RRC重配失败消息或者其他RRC消息。
在另一些实施例中，网络设备可以指示终端设备根据该上行信道资源参数发送上行数据，这样，网络设备可以根据该上行信道资源参数接收该终端设备发送的上行数据。
在另外一些实施例中，网络设备可以指示终端设备根据该上行信道资源参数发送上行RRC消息和上行数据，这样，网络设备可以根据该上行信道资源参数接收该终端设备发送的上行RRC消息和上行数据。
这样，网络设备可以指示终端设备在确定目标TA的情况下，根据上行信道资源参数进行上行传输，从而可以降低切换导致的业务中断时延，提高数据传输效率。
图7是根据一示例性实施例示出的一种接入方法的流程图。如图7所示，该方法可以包括：
S701、网络设备确定至少一个候选接入点对应的第一参数和上行信道资源参数。
S702、网络设备根据第一参数和上行信道资源参数，向终端设备发送第一消息。
其中，该第一消息中可以包括上述第一参数和上行信道资源参数；该候选接入点可以包括目标接入点，接入点可以包括小区和/或波束。该目标接入点对应的第一参数可以用于指示终端设备确定接入该目标接入点所使用的定时提前TA。该目标接入点对应的上行信道资源参数可以用于指示终端设备在根据第一参数确定接入目标接入点所使用的目标TA之后，根据上行信道资源参数进行上行传输。
示例地，该上行信道资源参数可以包括用于指示上行PUSCH资源的参数。
这样，网络设备可以指示终端设备根据目标TA和目标上行信道资源接入目标接入点，从而可以进一步降低切换导致的业务中断时延，提高数据传输效率。
图8是根据一示例性实施例示出的一种接入方法的流程图。如图8所示，该方法可以包括：
S801、网络设备确定至少一个候选接入点对应的第一参数。
其中，该候选接入点可以包括目标接入点，接入点可以包括小区和/或波束。该目标接入点对应的第一参数可以用于指示终端设备确定接入该目标接入点所使用的定时提前TA。
S802、网络设备根据第一参数向终端设备发送第一消息。
S803、终端设备响应于接收到网络设备发送的第一消息，确定至少一个候选接入点对应的第一参数。
S804、终端设备在确定待接入的目标接入点的情况下，根据第一参数确定接入该目标接入点所使用的目标定时提前TA。
S805、终端设备根据目标TA接入目标接入点。
需要说明的是，上述步骤的具体实现方式可以参考本公开前述实施例中的描述，此处不再赘述。
这样，终端设备可以根据网络设备发送的第一参数确定目标TA，并根据目标TA接入目标接入点，从而可以节省通过随机接入过程确定目标TA的时间，降低切换时延，提高切换过程中的数据传输效率。
图9是根据一示例性实施例示出的一种接入装置900的框图。该接入装置可以应用于终端设备。如图9所示，该装置900可以包括：
第一确定模块901，被配置为确定至少一个候选接入点对应的第一参数；其中，所述候选接入点包括目标接入点，接入点包括小区和/或波束；
第二确定模块902，被配置为根据所述第一参数确定接入目标接入点所使用的目标定时提前TA；
接入模块903，被配置为根据所述目标TA接入所述目标接入点。
在一些实施例中，所述第一确定模块901，被配置为接收到网络设备发送的第一消息，所述第一消息包括至少一个所述候选接入点对应的所述第一参数。
在一些实施例中，所述第一参数包括至少一个所述候选接入点的接入点标识，以及每个所述接入点标识对应的接入点TA参数；所述第二确定模块902，被配置为根据所述第一参数，确定目标接入点标识对应的目标接入点TA参数；其中，所述目标接入点标识为待接入的所述目标接入点对应的接入点标识；根据所述目标接入点TA参数确定所述目标TA。
在一些实施例中，所述目标接入点TA参数包括至少一个待定TA以及所述待定TA对应的第一条件信息；所述第二确定模块902，被配置为根据所述第一条件信息确定所述终端设备是否满足TA生效条件；在确定所述终端设备满足TA生效条件的情况下，根据所述第一条件信息对应的待定TA确定所述目标TA。
在一些实施例中，所述第一条件信息包括以下信息中的至少一项：
预设信号条件信息，所述预设信号条件信息用于指示所述终端设备根据检测到的所述目标接入点的无线信号强度确定所述终端设备是否满足所述TA生效条件；
预设位置条件信息，所述预设位置条件信息用于指示所述终端设备根据所述终端设备的位置信息确定所述终端设备是否满足所述TA生效条件；
预设时间条件信息，所述预设时间条件信息用于指示所述终端设备根据发起接入的时间确定是否所述终端设备满足所述TA生效条件。
在一些实施例中，在所述第一条件信息包括所述预设信号条件信息的情况下，所述TA生效条件包括所述无线信号强度处于目标信号强度范围，所述目标信号强度范围为根据所述预设信号条件信息确定的信号强度范围。
在一些实施例中，在所述第一条件信息包括预设位置条件信息的情况下，所述预设位置条件信息包括至少一个第一待定小区；所述TA生效条件包括所述终端设备的服务小区包含在所述至少一个第一待定小区中。
在一些实施例中，在所述第一条件信息包括预设位置条件信息的情况下，所述预设位置条件信息包括至少一个第二待定小区以及每个所述第二待定小区对应的第一距离参数；所述TA生效条件包括所述终端设备与所述第二待定小区对应的天线的第一距离小于或等于第一 距离阈值，所述第一距离阈值为根据所述第一距离参数确定的距离阈值。
在一些实施例中，在所述第一条件信息包括预设位置条件信息的情况下，所述预设位置条件信息包括预设位置参数和第二距离参数；所述TA生效条件包括所述终端设备与预设位置的第二距离小于或等于第二距离阈值，所述预设位置为根据所述预设位置参数确定的地理位置，所述第二距离阈值为根据所述第二距离参数确定的距离阈值。
在一些实施例中，在所述第一条件信息包括预设时间条件信息的情况下，所述预设时间条件信息包括预设时间参数；所述TA生效条件包括所述终端设备的当前时间处于第一时间范围内；所述第一时间范围为根据所述预设时间参数确定的时间范围。
在一些实施例中，所述预设时间参数包括第一绝对时间和第一时长；所述第一时间范围通过以下方式确定：
根据所述第一绝对时间和所述第一时长，确定所述第一时间范围。
在一些实施例中，所述预设时间参数包括第二时长；所述第一时间范围通过以下方式确定：
将所述终端设备满足第一预设条件开始的第二时长作为所述第一时间范围；
其中，所述第一预设条件包括以下条件中的一项或多项：
接收到网络设备发送的所述第一消息；
所述终端设备的当前时间等于第二绝对时间；所述第二绝对时间为所述终端设备从所述网络设备接收到的时间；
根据所述预设信号条件信息确定所述终端设备满足所述TA生效条件；
根据所述预设位置条件信息确定所述终端设备满足所述TA生效条件。
在一些实施例中，所述接入点TA参数包括接入点TA长度或接入点定时提前组TAG标识，所述根据所述第一参数，确定目标接入点标识对应的目标接入点TA参数包括：
根据所述接入点TA参数，确定目标接入点标识对应的目标TA的长度。
图10是根据一示例性实施例示出的一种接入装置的框图。如图10所示，该装置900还可以包括第一确定模块901，其中：
所述第一确定模块901，还被配置为确定上行信道资源参数；
所述传输模块904，被配置为在根据所述第一参数确定接入所述目标接入点所使用的目标TA的情况下，根据所述上行信道资源参数进行上行传输。
在一些实施例中，所述第一确定模块901，被配置为接收到网络设备发送的第二消息，所述第二消息包括所述上行信道资源参数。
在一些实施例中，所述传输模块904，被配置为根据所述上行信道资源参数发送上行无线资源控制RRC消息；和/或，根据所述上行信道资源参数发送上行数据。
在一些实施例中，所述接入模块903，被配置为根据所述目标TA，基于无随机接入信道RACH-less方式接入所述目标接入点。
图11是根据一示例性实施例示出的一种接入装置1100的框图。该接入装置可以应用于终端设备。如图11所示，该装置1100可以包括：
第三确定模块1101，被配置为确定至少一个候选接入点对应的第一参数；所述候选接入点包括目标接入点；
第一发送模块1102，被配置为根据所述第一参数向终端设备发送第一消息；其中，所述第一消息中包括所述第一参数；所述第一参数用于指示所述终端设备在准备接入目标接入点的情况下，确定接入所述目标接入点所使用的目标定时提前TA，并根据所述目标TA接入所述目标接入点；其中，接入点包括小区和/或波束。
在一些实施例中，所述第三确定模块1101，被配置为确定至少一个所述候选接入点的接入点标识；确定每个所述接入点标识对应的接入点TA参数；根据所述接入点标识和所述接入点TA参数，获取第一参数。
在一些实施例中，所述第三确定模块1101，被配置为获取所述接入点标识对应的至少一 个待定TA；确定每个所述待定TA对应的第一条件信息；根据所述待定TA和所述第一条件信息，确定所述接入点TA参数。
在一些实施例中，所述第一条件信息包括以下信息中的至少一项：
预设信号条件信息，所述预设信号条件信息用于指示所述终端设备根据检测到的所述目标接入点的无线信号强度确定所述终端设备是否满足所述TA生效条件；
预设位置条件信息，所述预设位置条件信息用于指示所述终端设备根据所述终端设备的位置信息确定所述终端设备是否满足所述TA生效条件；
预设时间条件信息，所述预设时间条件信息用于指示所述终端设备根据发起接入的时间确定是否所述终端设备满足所述TA生效条件。
在一些实施例中，在所述第一条件信息包括所述预设信号条件信息的情况下，所述TA生效条件包括所述终端设备检测到的所述目标接入点的无线信号强度处于目标信号强度范围，所述目标信号强度范围为根据所述预设信号条件信息确定的信号强度范围。
在一些实施例中，在所述第一条件信息包括预设位置条件信息的情况下，所述预设位置条件信息包括至少一个第一待定小区；所述TA生效条件包括所述终端设备的服务小区包含在所述至少一个第一待定小区中。
在一些实施例中，在所述第一条件信息包括预设位置条件信息的情况下，所述预设位置条件信息包括至少一个第二待定小区以及每个所述第二待定小区对应的第一距离参数；所述TA生效条件包括所述终端设备与所述第二待定小区对应的天线的第一距离小于或等于第一距离阈值，所述第一距离阈值为根据所述第一距离参数确定的距离阈值。
在一些实施例中，在所述第一条件信息包括预设位置条件信息的情况下，所述预设位置条件信息包括预设位置参数和第二距离参数；所述TA生效条件包括所述终端设备与预设位置的第二距离小于或等于第二距离阈值，所述预设位置为根据所述预设位置参数确定的地理位置，所述第二距离阈值为根据所述第二距离参数确定的距离阈值。
在一些实施例中，在所述第一条件信息包括预设时间条件信息的情况下，所述预设时间条件信息包括预设时间参数；所述TA生效条件包括所述终端设备的当前时间处于第一时间范围内；所述第一时间范围为根据所述预设时间参数确定的时间范围。
在一些实施例中，所述接入点TA参数包括接入点TA长度或接入点定时提前组TAG标识。
图12是根据一示例性实施例示出的一种接入装置1100的框图。如图12所示，该装置1100还可以包括第四确定模块1103，其中：
所述第四确定模块1103，还被配置为确定上行信道资源参数；
所述第一发送模块1102，还被配置为根据所述上行信道资源参数向终端设备发送第二消息，所述第二消息中包括所述上行信道资源参数；所述上行信道资源参数用于指示所述终端设备在根据所述第一参数确定接入所述目标接入点所使用的目标TA之后，根据所述上行信道资源参数进行上行传输。
关于上述实施例中的装置，其中各个模块执行操作的具体方式已经在有关该方法的实施例中进行了详细描述，此处将不做详细阐述说明。
图13是根据一示例性实施例示出的一种接入装置的框图。该接入装置2000可以是图1所示通信系统中的终端设备，也可以是该通信系统中的网络设备。
参照图13，该装置2000可以包括以下一个或多个组件：处理组件2002，存储器2004，以及通信组件2006。
处理组件2002可以用于控制该装置2000的整体操作，诸如与显示，电话呼叫，数据通信，相机操作和记录操作相关联的操作。处理组件2002可以包括一个或多个处理器2020来执行指令，以完成上述的接入方法的全部或部分步骤。此外，处理组件2002可以包括一个或多个模块，便于处理组件2002和其他组件之间的交互。例如，处理组件2002可以包括多媒体模块，以方便多媒体组件和处理组件2002之间的交互。
存储器2004被配置为存储各种类型的数据以支持在装置2000的操作。这些数据的示例包括用于在装置2000上操作的任何应用程序或方法的指令，联系人数据，电话簿数据，消息，图片，视频等。存储器2004可以由任何类型的易失性或非易失性存储设备或者它们的组合实现，如静态随机存取存储器(SRAM)，电可擦除可编程只读存储器(EEPROM)，可擦除可编程只读存储器(EPROM)，可编程只读存储器(PROM)，只读存储器(ROM)，磁存储器，快闪存储器，磁盘或光盘。
通信组件2006被配置为便于装置2000和其他设备之间有线或无线方式的通信。装置2000可以接入基于通信标准的无线网络，例如Wi-Fi，2G、3G、4G、5G、6G、NB-IOT、eMTC等，或它们的组合。在一个示例性实施例中，通信组件2006经由广播信道接收来自外部广播管理系统的广播信号或广播相关信息。在一个示例性实施例中，所述通信组件2006还包括近场通信(NFC)模块，以促进短程通信。例如，在NFC模块可基于射频识别(RFID)技术，红外数据协会(IrDA)技术，超宽带(UWB)技术，蓝牙(BT)技术和其他技术来实现。
在示例性实施例中，装置2000可以被一个或多个应用专用集成电路(ASIC)、数字信号处理器(DSP)、数字信号处理设备(DSPD)、可编程逻辑器件(PLD)、现场可编程门阵列(FPGA)、控制器、微控制器、微处理器或其他电子元件实现，用于执行上述接入方法。
上述装置2000可以是独立的电子设备，也可以是独立电子设备的一部分，例如在一种实施例中，该电子设备可以是集成电路(Integrated Circuit，IC)或芯片，其中该集成电路可以是一个IC，也可以是多个IC的集合；该芯片可以包括但不限于以下种类：GPU(Graphics Processing Unit，图形处理器)、CPU(Central Processing Unit，中央处理器)、FPGA(Field Programmable Gate Array，可编程逻辑阵列)、DSP(Digital Signal Processor，数字信号处理器)、ASIC(Application Specific Integrated Circuit，专用集成电路)、SOC(System on Chip，SoC，片上系统或系统级芯片)等。上述的集成电路或芯片中可以用于执行可执行指令(或代码)，以实现上述接入方法。其中该可执行指令可以存储在该集成电路或芯片中，也可以从其他的装置或设备获取，例如该集成电路或芯片中包括处理器、存储器，以及用于与其他的装置通信的接口。该可执行指令可以存储于该处理器中，当该可执行指令被处理器执行时实现上述接入方法；或者，该集成电路或芯片可以通过该接口接收可执行指令并传输给该处理器执行，以实现上述接入方法。
在示例性实施例中，本公开还提供了一种计算机可读存储介质，其上存储有计算机程序指令，该程序指令被处理器执行时实现本公开提供的接入方法的步骤。示例地，该计算机可读存储介质可以是一种包括指令的非临时性计算机可读存储介质，例如，可以是包括指令的上述存储器2004，上述指令可由装置2000的处理器2020执行以完成上述接入方法。例如，所述非临时性计算机可读存储介质可以是ROM、随机存取存储器(RAM)、CD-ROM、磁带、软盘和光数据存储设备等。
在另一示例性实施例中，还提供一种计算机程序产品，该计算机程序产品包含能够由可编程的装置执行的计算机程序，该计算机程序具有当由该可编程的装置执行时用于执行上述接入方法的代码部分。
本领域技术人员在考虑说明书及实践本公开后，将容易想到本公开的其它实施方案。本申请旨在涵盖本公开的任何变型、用途或者适应性变化，这些变型、用途或者适应性变化遵循本公开的一般性原理并包括本公开未公开的本技术领域中的公知常识或惯用技术手段。说明书和实施例仅被视为示例性的，本公开的真正范围和精神由下面的权利要求指出。
应当理解的是，本公开并不局限于上面已经描述并在附图中示出的精确结构，并且可以在不脱离其范围进行各种修改和改变。本公开的范围仅由所附的权利要求来限制。

Claims (33)

  1. 一种接入方法，其特征在于，应用于终端设备，所述方法包括；
    确定至少一个候选接入点对应的第一参数；其中，所述候选接入点包括目标接入点，接入点为小区和/或波束；
    根据所述第一参数确定接入目标接入点所使用的目标定时提前TA；
    根据所述目标TA接入所述目标接入点。
  2. 根据权利要求1所述的方法，其特征在于，所述确定至少一个候选接入点对应的第一参数包括：
    接收到网络设备发送的第一消息，所述第一消息包括至少一个所述候选接入点对应的所述第一参数。
  3. 根据权利要求1所述的方法，其特征在于，所述第一参数包括至少一个所述候选接入点的接入点标识，以及每个所述接入点标识对应的接入点TA参数；
    所述根据所述第一参数确定接入目标接入点所使用的目标定时提前TA包括：根据所述第一参数，确定目标接入点标识对应的目标接入点TA参数；其中，所述目标接入点标识为待接入的所述目标接入点对应的接入点标识；
    根据所述目标接入点TA参数确定所述目标TA。
  4. 根据权利要求3所述的方法，其特征在于，所述目标接入点TA参数包括至少一个待定TA以及所述待定TA对应的第一条件信息；所述根据所述目标接入点TA参数确定所述目标TA包括：
    根据所述第一条件信息确定所述终端设备是否满足TA生效条件；
    在确定所述终端设备满足TA生效条件的情况下，根据所述第一条件信息对应的待定TA确定所述目标TA。
  5. 根据权利要求4所述的方法，其特征在于，所述第一条件信息包括以下至少一项：
    预设信号条件信息，所述预设信号条件信息用于指示所述终端设备根据检测到的所述目标接入点的无线信号强度确定所述终端设备是否满足所述TA生效条件；
    预设位置条件信息，所述预设位置条件信息用于指示所述终端设备根据所述终端设备的位置信息确定所述终端设备是否满足所述TA生效条件；
    预设时间条件信息，所述预设时间条件信息用于指示所述终端设备根据发起接入的时间确定是否所述终端设备满足所述TA生效条件。
  6. 根据权利要求5所述的方法，其特征在于，在所述第一条件信息包括所述预设信号条件信息的情况下，所述TA生效条件包括所述无线信号强度处于目标信号强度范围，所述目标信号强度范围为根据所述预设信号条件信息确定的信号强度范围。
  7. 根据权利要求5所述的方法，其特征在于，在所述第一条件信息包括预设位置条件信息的情况下，所述预设位置条件信息包括至少一个第一待定小区；所述TA生效条件包括所述终端设备的服务小区包含在所述至少一个第一待定小区中。
  8. 根据权利要求5所述的方法，其特征在于，在所述第一条件信息包括预设位置条件信息的情况下，所述预设位置条件信息包括至少一个第二待定小区以及每个所述第二待定小区对应的第一距离参数；所述TA生效条件包括所述终端设备与所述第二待定小区对应的天 线的第一距离小于或等于第一距离阈值，所述第一距离阈值为根据所述第一距离参数确定的距离阈值。
  9. 根据权利要求5所述的方法，其特征在于，在所述第一条件信息包括预设位置条件信息的情况下，所述预设位置条件信息包括预设位置参数和第二距离参数；所述TA生效条件包括所述终端设备与预设位置的第二距离小于或等于第二距离阈值，所述预设位置为根据所述预设位置参数确定的地理位置，所述第二距离阈值为根据所述第二距离参数确定的距离阈值。
  10. 根据权利要求5所述的方法，其特征在于，在所述第一条件信息包括预设时间条件信息的情况下，所述预设时间条件信息包括预设时间参数；所述TA生效条件包括所述终端设备的当前时间处于第一时间范围内；所述第一时间范围为根据所述预设时间参数确定的时间范围。
  11. 根据权利要求10所述的方法，其特征在于，所述预设时间参数包括第一绝对时间和第一时长；所述第一时间范围通过以下方式确定：
    根据所述第一绝对时间和所述第一时长，确定所述第一时间范围。
  12. 根据权利要求10所述的方法，其特征在于，所述预设时间参数包括第二时长；所述第一时间范围通过以下方式确定：
    将所述终端设备满足第一预设条件开始的第二时长作为所述第一时间范围；
    其中，所述第一预设条件包括以下条件中的一项或多项：
    接收到网络设备发送的所述第一消息；
    所述终端设备的当前时间等于第二绝对时间；所述第二绝对时间为所述终端设备从所述网络设备接收到的时间；
    根据所述预设信号条件信息确定所述终端设备满足所述TA生效条件；
    根据所述预设位置条件信息确定所述终端设备满足所述TA生效条件。
  13. 根据权利要求3所述的方法，其特征在于，所述接入点TA参数包括接入点TA长度或接入点定时提前组TAG标识，所述根据所述第一参数，确定目标接入点标识对应的目标接入点TA参数包括：
    根据所述接入点TA参数，确定目标接入点标识对应的目标TA的长度。
  14. 根据权利要求1所述的方法，其特征在于，所述方法还包括：
    确定上行信道资源参数；
    在根据所述第一参数确定接入所述目标接入点所使用的目标TA的情况下，根据所述上行信道资源参数进行上行传输。
  15. 根据权利要求14所述的方法，其特征在于，所述确定上行信道资源参数包括：
    接收网络设备发送的第二消息，所述第二消息包括所述上行信道资源参数。
  16. 根据权利要求14所述的方法，其特征在于，所述根据所述上行信道资源参数进行上行传输包括：
    根据所述上行信道资源参数发送上行无线资源控制RRC消息；和/或，
    根据所述上行信道资源参数发送上行数据。
  17. 根据权利要求1至16中任一项所述的方法，其特征在于，所述根据所述目标TA 接入所述目标接入点包括：
    根据所述目标TA，基于无随机接入信道RACH-less方式接入所述目标接入点。
  18. 一种接入方法，其特征在于，应用于网络设备，所述方法包括；
    确定至少一个候选接入点对应的第一参数；所述候选接入点包括目标接入点，接入点包括小区和/或波束；
    根据所述第一参数向终端设备发送第一消息；其中，所述第一消息中包括所述第一参数；所述第一参数用于指示所述终端设备在准备接入目标接入点的情况下，确定接入所述目标接入点所使用的目标定时提前TA，并根据所述目标TA接入所述目标接入点。
  19. 根据权利要求18所述的方法，其特征在于，所述确定至少一个候选接入点对应的第一参数包括：
    确定至少一个所述候选接入点的接入点标识；
    确定每个所述接入点标识对应的接入点TA参数；
    根据所述接入点标识和所述接入点TA参数，获取第一参数。
  20. 根据权利要求19所述的方法，其特征在于，所述确定每个所述接入点标识对应的接入点TA参数包括：
    获取所述接入点标识对应的至少一个待定TA；
    确定每个所述待定TA对应的第一条件信息；
    根据所述待定TA和所述第一条件信息，确定所述接入点TA参数。
  21. 根据权利要求20所述的方法，其特征在于，所述第一条件信息包括以下信息中的至少一项：
    预设信号条件信息，所述预设信号条件信息用于指示所述终端设备根据检测到的所述目标接入点的无线信号强度确定所述终端设备是否满足所述TA生效条件；
    预设位置条件信息，所述预设位置条件信息用于指示所述终端设备根据所述终端设备的位置信息确定所述终端设备是否满足所述TA生效条件；
    预设时间条件信息，所述预设时间条件信息用于指示所述终端设备根据发起接入的时间确定是否所述终端设备满足所述TA生效条件。
  22. 根据权利要求21所述的方法，其特征在于，在所述第一条件信息包括所述预设信号条件信息的情况下，所述TA生效条件包括所述终端设备检测到的所述目标接入点的无线信号强度处于目标信号强度范围，所述目标信号强度范围为根据所述预设信号条件信息确定的信号强度范围。
  23. 根据权利要求21所述的方法，其特征在于，在所述第一条件信息包括预设位置条件信息的情况下，所述预设位置条件信息包括至少一个第一待定小区；所述TA生效条件包括所述终端设备的服务小区包含在所述至少一个第一待定小区中。
  24. 根据权利要求21所述的方法，其特征在于，在所述第一条件信息包括预设位置条件信息的情况下，所述预设位置条件信息包括至少一个第二待定小区以及每个所述第二待定小区对应的第一距离参数；所述TA生效条件包括所述终端设备与所述第二待定小区对应的天线的第一距离小于或等于第一距离阈值，所述第一距离阈值为根据所述第一距离参数确定的距离阈值。
  25. 根据权利要求21所述的方法，其特征在于，在所述第一条件信息包括预设位置条 件信息的情况下，所述预设位置条件信息包括预设位置参数和第二距离参数；所述TA生效条件包括所述终端设备与预设位置的第二距离小于或等于第二距离阈值，所述预设位置为根据所述预设位置参数确定的地理位置，所述第二距离阈值为根据所述第二距离参数确定的距离阈值。
  26. 根据权利要求21所述的方法，其特征在于，在所述第一条件信息包括预设时间条件信息的情况下，所述预设时间条件信息包括预设时间参数；所述TA生效条件包括所述终端设备的当前时间处于第一时间范围内；所述第一时间范围为根据所述预设时间参数确定的时间范围。
  27. 根据权利要求19所述的方法，其特征在于，所述接入点TA参数包括接入点TA长度或接入点定时提前组TAG标识。
  28. 根据权利要求18至27中任一项所述的方法，其特征在于，所述方法还包括：
    确定上行信道资源参数；
    根据所述上行信道资源参数向终端设备发送第二消息，所述第二消息中包括所述上行信道资源参数；所述上行信道资源参数用于指示所述终端设备在根据所述第一参数确定接入所述目标接入点所使用的目标TA之后，根据所述上行信道资源参数进行上行传输。
  29. 一种接入装置，其特征在于，应用于终端设备，所述装置包括：
    第一确定模块，被配置为确定至少一个候选接入点对应的第一参数；其中，所述候选接入点包括目标接入点，接入点为小区和/或波束；
    第二确定模块，被配置为根据所述第一参数确定接入目标接入点所使用的目标定时提前TA；
    接入模块，被配置为根据所述目标TA接入所述目标接入点。
  30. 一种接入装置，其特征在于，应用于网络设备，所述装置包括：
    第三确定模块，被配置为确定至少一个候选接入点对应的第一参数；所述候选接入点包括目标接入点；
    第一发送模块，被配置为根据所述第一参数向终端设备发送第一消息；其中，所述第一消息中包括所述第一参数；所述第一参数用于指示所述终端设备在准备接入目标接入点的情况下，确定接入所述目标接入点所使用的目标定时提前TA，并根据所述目标TA接入所述目标接入点；其中，接入点为小区和/或波束。
  31. 一种接入装置，其特征在于，所述装置包括：
    处理器；
    用于存储处理器可执行指令的存储器；
    其中，所述处理器被配置为执行权利要求1至17中任一项所述方法的步骤，或者，所述处理器被配置为执行权利要求18至28中任一项所述方法的步骤。
  32. 一种计算机可读存储介质，其上存储有计算机程序指令，其特征在于，所述计算机程序指令被处理器执行时实现权利要求1至17中任一项所述方法的步骤，或者，所述计算机程序指令被处理器执行时实现权利要求18至28中任一项所述方法的步骤。
  33. 一种芯片，其特征在于，包括处理器和接口；所述处理器用于读取指令以执行权利要求1至17中任一项所述方法的步骤，或者，所述处理器用于读取指令以执行权利要求18至28中任一项所述方法的步骤。
PCT/CN2022/109243 2022-07-29 2022-07-29 接入方法、装置、存储介质及芯片 Ceased WO2024021119A1 (zh)

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