WO2022165704A1 - Procédé d'établissement de connexion, dispositif, système, et support de stockage - Google Patents

Procédé d'établissement de connexion, dispositif, système, et support de stockage Download PDF

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Publication number
WO2022165704A1
WO2022165704A1 PCT/CN2021/075260 CN2021075260W WO2022165704A1 WO 2022165704 A1 WO2022165704 A1 WO 2022165704A1 CN 2021075260 W CN2021075260 W CN 2021075260W WO 2022165704 A1 WO2022165704 A1 WO 2022165704A1
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WIPO (PCT)
Prior art keywords
node
primary
configuration information
terminal device
cell
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PCT/CN2021/075260
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English (en)
Chinese (zh)
Inventor
黄钧蔚
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深圳传音控股股份有限公司
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Application filed by 深圳传音控股股份有限公司 filed Critical 深圳传音控股股份有限公司
Priority to PCT/CN2021/075260 priority Critical patent/WO2022165704A1/fr
Priority to CN202180091954.6A priority patent/CN116762395A/zh
Publication of WO2022165704A1 publication Critical patent/WO2022165704A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/10—Scheduling measurement reports ; Arrangements for measurement reports
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02—Terminal devices

Definitions

  • the embodiments of the present application relate to the field of communication technologies, and in particular, to a connection establishment method, device, system, and storage medium.
  • the terminal device establishes connections with the primary node and the secondary node respectively for data transmission. Both the primary node and the secondary node can configure multiple cells for the terminal device, including the primary cell and the secondary cell.
  • the primary cell corresponding to the primary node is called a Pcell
  • the primary cell corresponding to the secondary node is called a PScell (primary and secondary cell).
  • the serving cell corresponding to the terminal device Since the serving cell corresponding to the terminal device is constantly changing, the serving cell of the terminal device needs to be maintained.
  • the current technology only involves the addition and change of the primary and secondary cells. How to configure the secondary cell corresponding to the secondary node for the terminal device is a problem that needs to be solved.
  • Embodiments of the present application provide a connection establishment method, device, system, and storage medium, so as to configure a secondary cell corresponding to a secondary node for a terminal device, and quickly establish a connection between the terminal device and the corresponding secondary node.
  • an embodiment of the present application provides a method for establishing a connection, which is applied to a terminal device and includes the following steps: receiving configuration information, optionally, the configuration information includes a measurement parameter of a secondary cell corresponding to at least one secondary node; A target secondary node establishes a connection, optionally, the target secondary node is at least one of the secondary nodes.
  • the time point at which the configuration information is received includes at least one of the following:
  • the configuration information is carried through RRC (Radio Resource Control, radio resource control) signaling.
  • RRC Radio Resource Control, radio resource control
  • the radio resource control signaling may specifically be layer three radio resource control signaling.
  • the secondary cell measurement parameters are provided by the corresponding secondary node.
  • the step of establishing a connection with the target secondary node according to the configuration information includes:
  • the evaluation of the secondary cell is performed according to the measurement result, and the evaluation result of the secondary cell is obtained;
  • the secondary cell evaluation result is carried by at least one of the following signaling: MsgA, Msg1, Msg3 and radio resource control signaling.
  • the measurement is performed based on the measurement parameters of the secondary cell, and before the measurement result is obtained, the method further includes: determining the validity of the measurement parameters of the secondary cell.
  • establishing the connection with the target secondary node includes: configuring the primary secondary cell, and/or configuring the secondary cell.
  • the terminal device uses (New Radio, new radio) technology to access the master node and/or the slave node.
  • the connection establishment method further includes: sending uplink data; and/or receiving downlink data.
  • an embodiment of the present application provides a method for establishing a connection, which is applied to a terminal device and includes the following steps: receiving configuration information and acquiring a measurement result of a master node, where the configuration information includes measurement parameters of a secondary cell corresponding to at least one secondary node; according to the configuration The information and the master node measurement result establish a connection with a target secondary node, where the target secondary node is at least one of the secondary nodes.
  • the sequence of receiving the configuration information and obtaining the measurement result of the master node includes at least one of the following:
  • acquiring the measurement result of the master node may include at least one of the following:
  • establishing a connection with the target secondary node according to the configuration information and the primary node measurement result may include at least one of the following:
  • the primary cell of the master node When the primary cell of the master node does not satisfy the event A2, it establishes a connection with the target secondary node according to the configuration information.
  • the time point for receiving the configuration information and obtaining the measurement result of the master node includes at least one of the following:
  • the time point at which the measurement result of the master node is acquired may also include at least one of the following:
  • the primary node instructs the terminal device to add the primary secondary cell of the secondary node.
  • the evaluation of the secondary cell is performed according to the measurement result, and the evaluation result of the secondary cell is obtained;
  • the method also includes at least one of the following:
  • the secondary cell evaluation result is carried by at least one of the following signaling: MsgA, Msg1, Msg3 and radio resource control signaling;
  • the measurement is performed based on the measurement parameters of the secondary cell, and before the measurement result is obtained, the method further includes: determining the validity of the measurement parameters of the secondary cell;
  • Establishing a connection with the target secondary node includes: configuring the primary secondary cell, and/or configuring the secondary cell.
  • the configuration information is carried through RRC (Radio Resource Control, radio resource control) signaling.
  • RRC Radio Resource Control, radio resource control
  • the RRC signaling may specifically be layer 3 RRC signaling.
  • the secondary cell measurement parameters are provided by the corresponding secondary node.
  • the terminal equipment uses a new radio technology to access the primary node and/or the secondary node.
  • the method further includes at least one of the following: sending uplink data; and receiving downlink data.
  • an embodiment of the present application provides a method for establishing a connection, which is applied to a master node and includes the following steps:
  • the configuration information includes a secondary cell measurement parameter corresponding to at least one secondary node.
  • the configuration information is used to instruct the terminal device to establish a connection with the target secondary node according to the configuration information.
  • the node is at least one of the auxiliary nodes;
  • the time point for sending the configuration information includes at least one of the following:
  • the configuration information is carried through radio resource control signaling.
  • the radio resource control signaling may specifically be layer 3 radio resource control signaling.
  • the secondary cell measurement parameter is provided by the corresponding secondary node.
  • the terminal equipment uses a new radio technology to access the primary node and/or the secondary node.
  • an embodiment of the present application provides a method for establishing a connection, which is applied to a master node and includes the following steps:
  • the configuration information includes a secondary cell measurement parameter corresponding to at least one secondary node
  • the configuration information is used to instruct the terminal device to establish a connection with a target secondary node according to the configuration information and the primary node measurement result, where the target secondary node is one of the secondary nodes. at least one;
  • the measurement result of the master node includes at least one of the following:
  • the signal strength of the primary cell of the primary node is the signal strength of the primary cell of the primary node
  • the signal quality of the primary cell of the primary node is the signal quality of the primary cell of the primary node
  • the signal-to-noise ratio of the primary cell of the primary node is the signal-to-noise ratio of the primary cell of the primary node.
  • send configuration information including at least one of the following:
  • the configuration information is carried through radio resource control signaling.
  • the radio resource control signaling may specifically be layer three radio resource control signaling.
  • the secondary cell measurement parameters are provided by the corresponding secondary node.
  • the terminal equipment uses a new radio technology to access the primary node and/or the secondary node.
  • an embodiment of the present application provides a method for establishing a connection, which is applied to a secondary node and includes the following steps:
  • the secondary cell evaluation result is obtained by the terminal device based on the secondary cell measurement parameter from the master node;
  • the secondary cell evaluation result it is determined whether to configure the secondary cell for the terminal device, and when it is determined to configure the secondary cell for the terminal device, the secondary cell is configured for the terminal device.
  • the secondary cell evaluation result is carried by at least one of the following signaling: MsgA, Msg1, Msg3 and radio resource control signaling.
  • the method before receiving the secondary cell evaluation result, the method further includes: sending secondary cell measurement parameters to the master node.
  • the connection establishment method further includes: receiving uplink data; and/or sending downlink data.
  • the time point for receiving the secondary cell evaluation result includes at least one of the following:
  • the terminal device determines that the signal strength of the primary cell of the master node is greater than the first threshold
  • the terminal device determines that the signal quality of the primary cell of the master node is greater than the second threshold
  • the terminal device determines that the signal-to-noise ratio of the primary cell of the master node is greater than the third threshold
  • the terminal device determines that the primary cell of the primary node satisfies the event A1;
  • the terminal equipment uses a new radio technology to access the primary node and/or the secondary node.
  • an embodiment of the present application provides a connection establishment device, which is applied to terminal equipment, including:
  • a transceiver module configured to receive configuration information, where the configuration information includes secondary cell measurement parameters corresponding to at least one secondary node;
  • the processing module is configured to establish a connection with a target secondary node according to the configuration information, where the target secondary node is at least one of the secondary nodes.
  • an embodiment of the present application provides a connection establishment apparatus, which is applied to a terminal device, including:
  • a transceiver module configured to receive configuration information and obtain measurement results of the primary node, where the configuration information includes measurement parameters of secondary cells corresponding to at least one secondary node;
  • the processing module is configured to establish a connection with a target secondary node according to the configuration information and the measurement result of the primary node, where the target secondary node is at least one of the secondary nodes.
  • an embodiment of the present application provides a connection establishment device, which is applied to a master node and includes:
  • the processing module is used to obtain configuration information, the configuration information includes secondary cell measurement parameters corresponding to at least one secondary node, the configuration information is used to instruct the terminal device to establish a connection with a target secondary node according to the configuration information, and the target secondary node is at least one of the secondary nodes.
  • the configuration information includes secondary cell measurement parameters corresponding to at least one secondary node
  • the configuration information is used to instruct the terminal device to establish a connection with a target secondary node according to the configuration information
  • the target secondary node is at least one of the secondary nodes.
  • the transceiver module is used to send configuration information.
  • an embodiment of the present application provides a connection establishment device, which is applied to a master node and includes the following steps:
  • the processing module is used to obtain configuration information, the configuration information includes secondary cell measurement parameters corresponding to at least one secondary node, and the configuration information is used to instruct the terminal device to establish a connection with the target secondary node according to the configuration information and the primary node measurement result, and the target secondary node is the target secondary node. at least one of the secondary nodes;
  • Transceiver module used to send configuration information and master node measurement results.
  • an embodiment of the present application provides a connection establishment device, which is applied to a secondary node, including:
  • a transceiver module configured to receive the secondary cell evaluation result, and the secondary cell evaluation result is obtained by the terminal device based on the secondary cell measurement parameter from the primary node;
  • the processing module is configured to establish a connection with the terminal device according to the secondary cell evaluation result.
  • an embodiment of the present application provides a communication device, including: a memory and a processor;
  • memory is used to store program instructions
  • the processor is adapted to invoke program instructions in the memory to perform any of the methods described above.
  • the communication device of the eleventh aspect may be a terminal device or a network device, or may be a chip of a terminal device or a chip of a network device.
  • an embodiment of the present application provides a communication system, including:
  • a terminal device for implementing the method according to any one of the first aspect or the second aspect
  • a master node for implementing the method as in any one of the third aspect or the fourth aspect
  • an embodiment of the present application provides a readable storage medium, where a computer program is stored on the readable storage medium, and when the computer program is executed, any one of the above methods is implemented.
  • an embodiment of the present application provides a computer program product, the computer program product includes a computer program, the computer program is stored in a readable storage medium, the processor can read the computer program from the readable storage medium, and the processor executes the computer program.
  • a computer program implements any of the above methods.
  • the present application provides a connection establishment method, device, system and storage medium.
  • a terminal device receives configuration information from a master node, where the configuration information includes measurement parameters of a secondary cell corresponding to at least one secondary node, and establishes a connection with a target secondary node according to the configuration information.
  • the target secondary node is at least one of the above secondary nodes.
  • Fig. 1a is a kind of schematic diagram of EN-DC scene
  • FIG. 1b is a schematic diagram of a multi-radio dual connection scenario
  • Fig. 2 is a schematic flowchart of two-step random access
  • 3 is a schematic flow chart of four-step random access
  • Fig. 4 is a schematic diagram of a CPA process flow
  • FIG. 5 is a schematic diagram of a CPC process flow in the scenario of changing primary and secondary cells between secondary nodes
  • FIG. 6 is a schematic diagram of a CPC process flow in a scenario where the primary and secondary cells in the secondary node are changed;
  • FIG. 7 is a schematic structural diagram of a communication system provided by an embodiment of the present application.
  • FIG. 8 is a schematic diagram of signaling interaction of a connection establishment method provided by an embodiment of the present application.
  • FIG. 9 is a schematic diagram of signaling interaction of a connection establishment method provided by another embodiment of the present application.
  • FIG. 10 is a schematic diagram of signaling interaction of a connection establishment method provided by another embodiment of the present application.
  • FIG. 11 is a schematic structural diagram of a connection establishment apparatus provided by an embodiment of the present application.
  • FIG. 12 is a schematic structural diagram of a communication device provided by an embodiment of the application.
  • FIG. 13 is a schematic diagram of a hardware structure of a mobile terminal implementing various embodiments of the present application.
  • FIG. 14 is an architectural diagram of a communication network system provided by an embodiment of the present application.
  • Dual connection means that the terminal device uses the same wireless access technology to access two different network devices; or, the terminal device uses two different wireless access technologies to simultaneously access one network device or two network devices.
  • the connection established between the terminal equipment and the MN Master Node, master node
  • MCG Master Cell Group, the master cell group
  • PCell the master cell in the master cell group
  • SCG Secondary Cell Group, secondary cell group
  • PScell the primary cell in the secondary cell group
  • Dual connectivity includes EN-DC (EUTRA-NR Dual Connectivity) and MR-DC (Multi-Radio Dual Connectivity, multi-radio dual connectivity).
  • EN-DC EUTRA-NR Dual Connectivity
  • MR-DC Multi-Radio Dual Connectivity, multi-radio dual connectivity
  • FIG. 1a is a schematic diagram of an EN-DC scenario.
  • the terminal device simultaneously accesses two base stations through the interface Uu: MeNB and SgNB.
  • MeNB is a 4G base station that provides S1-MME connection for terminal equipment, and is connected to the 4G core network as a control plane anchor point, and undertakes all control plane functions, so it is also called a master node;
  • SgNB is a 5G base station and has no direct connection.
  • SgNB does not undertake the control plane function, and its interaction with the control plane of the core network is carried out by MeNB, so it is called as a secondary node.
  • FIG. 1b is a schematic diagram of a multi-radio dual connection scenario.
  • the terminal equipment is configured to access two different nodes respectively through the interface Uu, and utilize the resources provided by the two different nodes, one node provides NR access, the other node provides E-UTRA or NR access.
  • one node acts as the primary node and the other node acts as the secondary node.
  • the primary node and the secondary node are connected by a network interface, and at least the primary node is connected to the core network.
  • NGEN-DC NGEN-DC
  • NG-RAN E-UTRA-NR Dual Connectivity the secondary node provides NR access, and the primary node provides E-UTRA access
  • NE-DC NR-E-UTRA Dual Connectivity
  • the primary node provides NR access.
  • the node provides NR access, and the secondary node provides E-UTRA access; in NR-DC (NR-NR Dual Connectivity), both the primary node and the secondary node provide NR access.
  • the terminal device is configured with two medium access control entities: one medium access control entity for the primary cell group and the other medium access control entity for the secondary cell group.
  • Serving elements of a primary cell group other than PCell can only be activated/deactivated by control elements in the medium access control protocol data unit received on the primary cell group, and serving elements of a secondary cell group (except PSCell) can only be activated/deactivated by Control element activation/deactivation in medium access control protocol data units received on the secondary cell group.
  • RA Random Access, Random Access: refers to the process from when the terminal device sends a random access preamble sequence and attempts to access the network device until the basic signaling connection is established with the network device.
  • the terminal device can initiate random access in various possible scenarios. For example, after the state of the terminal device is switched from the idle state to the connected state, random access is initiated when the terminal device establishes a wireless link with the network device; or, random access is initiated when the state of the terminal device is switched from the inactive state to the connected state ; Or, the terminal device initiates random access when performing a cell handover (Handover) procedure, establishing a wireless link with a new target cell, and so on.
  • Handover cell handover
  • the random access involved in the embodiments of the present application may include two-step random access (also referred to as 2-step RA) and four-step random access (also referred to as 4-step RA).
  • 2-step RA two-step random access
  • 4-step RA four-step random access
  • FIG. 2 is a schematic flowchart of two-step random access.
  • the two-step random access may include:
  • the terminal device sends the MsgA to the network device.
  • the MsgA includes a random access preamble and a payload.
  • the network device sends the MsgB to the terminal device.
  • MsgB can be: Contention Resolution, Fallback Indication, Backoff Indication, etc.
  • FIG. 3 is a schematic flowchart of four-step random access.
  • the four-step random access may include:
  • the terminal device sends Msg1 to the network device.
  • the Msg1 includes: a random access preamble, and the random access preamble may also be referred to as a random access preamble sequence, or a preamble, or a preamble sequence.
  • the network device sends Msg2 to the terminal device.
  • Msg2 may be: a random access response and/or a fallback indication.
  • the backoff indication is used to indicate the backoff time for retransmission of Msg1.
  • CFRA Contention Free Random Access, non-contention-based random access
  • CBRA Contention Based Random Access, competition-based random access
  • the terminal device sends Msg3 to the network device.
  • Msg3 is the first scheduled transmission in the random access process, and sends a payload.
  • the network device sends Msg4 to the terminal device.
  • Msg4 is used to indicate whether the terminal device successfully accesses the network device.
  • Msg4 has a role in resolving competition conflicts. Taking the initial access as an example, the conflict resolution is that the terminal device receives the PDSCH (Physical Downlink Shared Channel, physical downlink shared channel) of Msg4, and serves the data unit by matching the CCCH (Common Control Channel, common control channel) in the physical downlink shared channel. (Service Data Unit, SDU).
  • PDSCH Physical Downlink Shared Channel, physical downlink shared channel
  • CCCH Common Control Channel
  • SDU Service Data Unit
  • the current technology involves the addition and change of the primary and secondary cells, namely CPA (Conditional PSCell Addition, conditional primary and secondary cell addition) and CPC (Conditional PSCell Change, conditional primary and secondary cells) change), which are explained separately below.
  • CPA Conditional PSCell Addition, conditional primary and secondary cell addition
  • CPC Conditional PSCell Change, conditional primary and secondary cells
  • the terminal device sends an RRC measurement report to the master node.
  • the terminal device Relative to the master node, the terminal device is in a connected state, and the terminal device is configured to perform measurements on neighboring and secondary nodes. At this time, the terminal device reports the RRC measurement result to the master node.
  • S4-2 The master node decides to start the CPA procedure according to the RRC measurement report.
  • the master node initiates the secondary node addition process with a set of candidate secondary nodes. specifically:
  • the master node sends a secondary node addition request (SN Addition Request) message to the candidate secondary node.
  • SN Addition Request a secondary node addition request
  • two candidate secondary nodes are taken as an example for description, and the two candidate secondary nodes are respectively denoted as T-SN1 and T-SN2.
  • the master node sends secondary node addition request messages to T-SN1 and T-SN2 respectively.
  • T-SN1 and T-SN2 generate a secondary node addition request acknowledgement (SN Addition Request Acknowledge) message, and the secondary node addition request acknowledgement message indicates that the termination point to be newly added for it will be added from the primary node.
  • the node extends the data bearer of the secondary node to the prepared set of candidate primary secondary cells and the data forwarding address.
  • the candidate secondary node sends a secondary node addition request confirmation message to the primary node.
  • the master node sends an RRC reconfiguration message to the terminal device.
  • the CPA configuration information is sent to the terminal device through an RRC reconfiguration (RRC Reconfiguration) message.
  • RRC Reconfiguration RRC Reconfiguration
  • the RRC reconfiguration message may include the following content:
  • the terminal device After receiving the RRC reconfiguration message, the terminal device checks whether the CPA configuration information is a valid configuration. If the CPA configuration information is valid, the terminal device executes S4-6.
  • the terminal device sends an RRC reconfiguration complete (RRC Reconfiguration Complete) message to the master node.
  • RRC reconfiguration complete RRC Reconfiguration Complete
  • the terminal device evaluates whether the candidate primary and secondary cells meet the corresponding execution conditions.
  • the terminal device After receiving the RRC reconfiguration message, the terminal device starts to evaluate whether the candidate primary and secondary cells meet the corresponding execution conditions. When it is determined that a certain primary and secondary cell satisfies the execution condition, the primary and secondary cell is used as the target primary and secondary cell, and the terminal device can stop evaluating other candidate primary and secondary cells, and execute S4-8.
  • the terminal device sends an RRC reconfiguration complete message to the master node.
  • the RRC reconfiguration complete message carries the information of the target primary and secondary cells.
  • the selected target primary and secondary cell is represented by T-PSCell1
  • the target secondary node to which T-PSCell1 belongs is T-SN1.
  • the master node After receiving the confirmation information of the target primary and secondary cells sent by the terminal equipment, the master node starts to prepare for establishing a connection with the target secondary node and waits for the terminal equipment to initiate random access.
  • the primary node sends a secondary node reconfiguration complete (SN Reconfiguration Complete) message to the target secondary node.
  • SN Reconfiguration Complete SN Reconfiguration Complete
  • the primary node forwards the newly added data of the secondary node state to the data bearer of the target secondary node, the termination point extends from the primary node to the target secondary node, and uses the data forwarding address provided by S4-3 to start these Bearer data forwarding.
  • the terminal device performs random access to the target primary and secondary cells.
  • This step can be performed in parallel with S4-8 to S4-11.
  • S4-13 The network performs a path addition process including path addition on the data bearer of the terminal device extending from the primary node to the target secondary node.
  • CPC can be further subdivided into primary and secondary cell-initiated or secondary node-initiated, and/or can be divided into intra-SN PSCell change (Intra-SN PSCell change) and inter-SN primary and secondary cell change (Inter-SN PSCell change) SN PScell change) two scenarios.
  • intra-SN PSCell change Intra-SN PSCell change
  • Inter-SN PSCell change Inter-SN PSCell change
  • a scenario of a primary and secondary cell change (Inter-SN PScell change) between secondary nodes and a CPC initiated by a secondary node is used as an example for description.
  • the terminal device sends an RRC measurement report to the S-SN (Source-SN, source secondary node).
  • the terminal device runs in the DC scenario and is configured to measure the primary and secondary nodes.
  • the source and secondary nodes decide to start the CPC procedure according to the RRC measurement report.
  • the source secondary node sends a secondary node change request message to the primary node.
  • the secondary node change request message is used to instruct the primary node to start the CPC procedure, and carries the T-SN (Target-SN, candidate secondary node) information and measurement results.
  • T-SN Target-SN, candidate secondary node
  • candidate secondary nodes include T-SN1 and T-SN2.
  • the master node sends a secondary node addition request (SN Addition Request) message to the candidate secondary node.
  • SN Addition Request secondary node addition request
  • the secondary node addition request message is used to start the secondary node addition process.
  • the master node receives a secondary node addition request acknowledgement (SN Addition Request Acknowledge) message from the candidate secondary node.
  • SN Addition Request Acknowledge secondary node addition request acknowledgement
  • each candidate secondary node indicates a candidate primary secondary cell and a set of data forwarding addresses to be set for data bearers terminating in the candidate secondary node to provide for indirect data forwarding (through the primary node) and The data forwarding address for direct data forwarding.
  • the master node sends an RRC reconfiguration (RRC Reconfiguration) message to the terminal device.
  • RRC reconfiguration RRC Reconfiguration
  • the RRC reconfiguration message includes the following:
  • the terminal device After receiving the RRC reconfiguration message, the terminal device checks whether the CPC configuration information is a valid configuration. If the CPC configuration information is valid, the terminal device executes S5-7.
  • the terminal device sends an RRC reconfiguration complete (RRC Reconfiguration Complete) message to the master node.
  • RRC reconfiguration complete RRC Reconfiguration Complete
  • the terminal device evaluates whether the candidate primary and secondary cells satisfy the corresponding execution conditions.
  • the terminal device After receiving the RRC reconfiguration message, the terminal device starts to evaluate whether the candidate primary and secondary cells meet the corresponding execution conditions. When it is determined that a certain primary and secondary cell satisfies the execution condition, the primary and secondary cell is used as the target primary and secondary cell, and the terminal device can stop evaluating other candidate primary and secondary cells, and execute S5-9.
  • the terminal device sends an RRC reconfiguration complete message to the master node.
  • the RRC reconfiguration complete message carries the information of the target primary and secondary cells.
  • the selected target primary and secondary cell is represented by T-PSCell1
  • the target secondary node to which T-PSCell1 belongs is T-SN1.
  • the primary node sends a secondary node change confirmation (SN Change Confirm) message to the source secondary node.
  • SN Change Confirm secondary node change confirmation
  • the secondary node change confirmation message carries the information of the selected target secondary node, such as the data forwarding address provided by the target secondary node (T-SN1) and its own indirect data forwarding address. After receiving the secondary node change confirmation message, the source secondary node releases resources for the terminal device.
  • the master node sends a secondary node reconfiguration complete (RRC Reconfiguration Complete) message to the T-SN1.
  • RRC Reconfiguration Complete secondary node reconfiguration complete
  • the source secondary node and the primary node send the secondary node state transition to the target secondary node to the data bearer where the terminal device is located at the target secondary node.
  • S5-13a and S5-13b initiate data forwarding for the bearer using the data forwarding address provided in S5-5 and S5-10.
  • S5-12a and S5-13a show indirect data forwarding
  • S5-12b and S5-13b show direct data forwarding
  • the terminal device performs random access to the target primary and secondary cells.
  • This step can be performed in parallel with S5-9 to S5-13.
  • the network performs a path update process, including path switching of the data bearer that moves the terminal device from the primary node or the source secondary node to the target secondary node.
  • the primary node instructs the source secondary node to release the terminal device context.
  • a scenario of a primary and secondary cell change (Intra-SN PSCell change) in a secondary node, a CPC initiated by a secondary node is used as an example for description.
  • the terminal device sends an RRC measurement report to the secondary node.
  • the terminal device runs in the DC scenario and is configured to measure the primary and secondary nodes.
  • the secondary node decides to start the CPC procedure according to the RRC measurement report.
  • the secondary node sends a secondary node modification request message to the primary node.
  • the secondary node change request message includes a set of candidate primary and secondary cells and a CPC execution condition to be satisfied by each candidate primary and secondary cell.
  • the primary node sends a secondary node modification request (SN Modification Request) message to the secondary node.
  • SN Modification Request secondary node modification request
  • the master node initiates the secondary node modification process by sending the secondary node modification request message.
  • information on measurement gap coordination is information on measurement gap coordination.
  • the secondary node sends a secondary node modification request acknowledgement (SN Modification Request Acknowledge) message to the primary node.
  • SN Modification Request Acknowledge secondary node modification request acknowledgement
  • the master node sends an RRC reconfiguration (RRC Reconfiguration) message to the terminal device.
  • RRC reconfiguration RRC Reconfiguration
  • the RRC reconfiguration message includes the following:
  • the terminal device After receiving the RRC reconfiguration message, the terminal device checks whether the CPC configuration information is a valid configuration. If the CPC configuration information is valid, the terminal device executes S6-7.
  • the terminal device sends an RRC reconfiguration complete (RRC Reconfiguration Complete) message to the master node.
  • RRC reconfiguration complete RRC Reconfiguration Complete
  • the terminal device evaluates whether the candidate primary and secondary cells meet the corresponding execution conditions.
  • the terminal device After receiving the RRC reconfiguration message, the terminal device starts to evaluate whether the candidate primary and secondary cells meet the corresponding execution conditions. When it is determined that a certain primary and secondary cell satisfies the execution condition, the primary and secondary cell is used as the target primary and secondary cell, and the terminal device can stop evaluating other candidate primary and secondary cells, and execute S6-8.
  • the terminal device sends an RRC reconfiguration complete message to the master node.
  • the primary node sends a secondary node modification confirmation (SN Modification Confirm) message to the secondary node.
  • SN Modification Confirm SN Modification Confirm
  • the secondary node modification confirmation message includes an RRC reconfiguration complete message provided by the terminal device, as a response message to the secondary node, indicating that the terminal device has successfully applied the configuration.
  • the terminal device performs random access to the target primary and secondary cells.
  • This step can be performed in parallel with S6-9 to S6-11.
  • the network performs a path update process, including path switching of the data bearer that the terminal device moves.
  • the present application provides a connection establishment method, device, system and storage medium.
  • the secondary cell of the secondary node is also considered to be configured for the terminal device, so as to quickly establish the terminal device and the secondary node. connection to meet the design concept of URLLC (Ultra Reliable Low Latency Communications, high reliability and low latency communication).
  • connection establishment method may be applied to the schematic diagram of the communication system architecture shown in FIG. 7 .
  • the communication system includes: AMF/UPF, access network equipment and terminal equipment.
  • the access network device includes: a first base station and a second base station.
  • both the first base station and the second base station are base stations of the NR system.
  • the first base station and the second base station share one AMF/UPF.
  • the first base station and AMF (Access and Mobile Management Function)/UPF (User Plane Function, The user plane functions) are connected through the interface NG-C, the first base station and the second base station are connected through the interface Xn-C, and the terminal equipment simultaneously accesses the first base station and the second base station.
  • AMF Access and Mobile Management Function
  • UPF User Plane Function
  • the first base station and the second base station may also have independent AMFs/UPFs, which are not limited in this embodiment of the present application.
  • the communication system shown in FIG. 7 can be applied to different network standards, for example, can be applied to GSM (Global System of Mobile communication, global mobile communication), CDMA (Code Division Multiple Access, code division multiple access) , WCDMA (Wideband Code Division Multiple Access, Wideband Code Division Multiple Access), TD-SCDMA (Time Division-Synchronous Code Division Multiple Access, Time Division Synchronous Code Division Multiple Access), Long Term Evolution System and future 5G and other network standards.
  • GSM Global System of Mobile communication, global mobile communication
  • CDMA Code Division Multiple Access, code division multiple access
  • WCDMA Wideband Code Division Multiple Access
  • TD-SCDMA Time Division-Synchronous Code Division Multiple Access, Time Division Synchronous Code Division Multiple Access
  • Long Term Evolution System Long Term Evolution System
  • the above communication system may be a system in a scenario of high reliability and low latency communication in a 5G communication system.
  • the terminal device may be a wireless terminal device or a wired terminal device.
  • Wireless terminal equipment can refer to a device with wireless transceiver function, which can be deployed on land, including indoor or outdoor, hand-held or vehicle-mounted; it can also be deployed on water (such as ships, etc.); it can also be deployed in the air (such as aircraft) , balloons and satellites, etc.).
  • the terminal device can be a mobile phone (mobile phone), a tablet computer (Pad), a computer with wireless transceiver function, VR (Virtual Reality, virtual reality) terminal device, AR (Augmented Reality, augmented reality) terminal device, industrial control (industrial control) Wireless terminal equipment in ), wireless terminal equipment in self-driving, wireless terminal equipment in remote medical, wireless terminal equipment in smart grid, transportation safety (transportation safety) Wireless terminal equipment in a smart city (smart city), wireless terminal equipment in a smart home (smart home), wearable equipment, etc., which are not limited here.
  • a terminal device may also be referred to as a mobile terminal (Mobile Terminal), UE (User Equipment, user equipment), a system, a subscriber unit (Subscriber Unit), a subscriber station (Subscriber Station), mobile Station (Mobile Station), Mobile Station (Mobile), Remote Station (Remote Station), Remote Terminal (Remote Terminal), Access Terminal (Access Terminal), User Terminal (User Terminal) or User Agent (User Agent) where Not limited.
  • a network device also known as a RAN (radio access network, radio access network) device, is a device that connects a terminal device to a wireless network. It can be an evolved base station (evolutional node B, eNB or eNodeB in the LTE system) ), or relay station or access point, or base station in 5G network, such as transmission and reception point (transmission and reception point, TRP), controller, etc., which are not limited here.
  • RAN radio access network, radio access network
  • the network side can quickly increase according to the policy and enable the secondary node connection to speed up data transmission. amount to achieve a better user experience.
  • the strategy is to configure the terminal device to evaluate its corresponding secondary cell at the same time when evaluating the primary and secondary cells to be newly added.
  • the terminal equipment provides its corresponding secondary cell evaluation result, so that the secondary node can quickly configure the secondary cell according to the secondary cell evaluation result, and increase the number of terminal equipment connections to achieve the effect of fast data transmission.
  • the terminal equipment carried by the user is bound to undergo the process of cell switching. For example, during the cell switching process, the terminal equipment is performing a large amount of data transmission. Browsing or playing games, etc. At this time, if the terminal device fails to switch cells quickly, it may cause data freeze, which affects the user experience.
  • the corresponding secondary cells can also be quickly configured, and the number of connections can be quickly restored to meet user requirements, thereby improving user experience.
  • FIG. 8 is a schematic diagram of signaling interaction of a connection establishment method provided by an embodiment of the present application. As shown in FIG. 8 , the connection establishment method of this embodiment includes the following steps:
  • the master node acquires configuration information, where the configuration information is used to instruct the terminal device to establish a connection with the target secondary node.
  • the master node may acquire the stored configuration information from inside; or, the master node may acquire configuration information from other external devices, which may be specifically set according to actual needs, which is not limited in this embodiment of the present application.
  • the secondary cell measurement parameters are provided by the corresponding secondary node.
  • the secondary cell measurement parameters of the secondary node SN1 are provided by the secondary node SN1
  • the secondary cell measurement parameters of the secondary node SN2 are provided by the secondary node SN2, and so on.
  • the secondary cell measurement parameter may specifically include a measurement configuration (MeasConfig) and a measurement object (MeasObjectNR).
  • the measurement configuration includes a measurement threshold, indicating whether the terminal device needs to perform measurement of related neighbor cells and triggers the reporting threshold.
  • the measurement configuration may further include a measurement report triggering event (Event), which may further differentiate the serving cell and/or the neighboring cell and/or the inter-system cell event and so on.
  • Event measurement report triggering event
  • step S10 the master node executes step S10.
  • the master node when the master node decides to start the CPA procedure according to the RRC measurement report reported by the terminal device, the master node sends an RRC reconfiguration message to the terminal device.
  • the configuration information in step S10 is Specifically, it can be carried in the RRC reconfiguration message in the CPA procedure.
  • the difference from the RRC reconfiguration message in FIG. 4 is that the configuration information in this embodiment of the present application includes secondary cell measurement parameters corresponding to the secondary node.
  • the configuration information in this step may be specifically carried by the RRC reconfiguration message in the CPC procedure as shown in FIG. 5 or FIG. 6 .
  • the difference from the RRC reconfiguration message in FIG. 5 or FIG. 6 is that the configuration information in this embodiment of the present application includes secondary cell measurement parameters corresponding to the secondary node.
  • the sending/receiving time point of the above configuration information may include at least one of the following:
  • the configuration information may be carried through radio resource control signaling.
  • the above example is described by taking the RRC reconfiguration message carrying the configuration information mentioned in the embodiment of this application as an example, but it should be noted that this is only an example description, and this application is not limited by this.
  • the configuration information It can also be carried by other radio resource control signaling, for example, the radio resource control signaling received by the terminal device before reporting the RRC measurement report.
  • the terminal device executes step S20.
  • the terminal device After receiving the configuration information, the terminal device performs step S30.
  • the terminal device can also evaluate the secondary cell of the target secondary node during the process of establishing a connection with the target secondary node according to the configuration information, so that the terminal device can evaluate the secondary cell of the target secondary node. Quickly configure the secondary cell of the target secondary node, thereby reducing the data transmission delay.
  • the terminal device receives configuration information from the master node, where the configuration information includes measurement parameters of the secondary cell corresponding to at least one secondary node, and establishes a connection with a target secondary node according to the configuration information, where the target secondary node is one of the above secondary nodes at least one of.
  • the configuration information includes measurement parameters of the secondary cells corresponding to the secondary nodes in the configuration information, that is, while adding and changing the primary and secondary cells, consider configuring the secondary cells of the primary and secondary cells corresponding to the secondary nodes for the terminal equipment, so as to quickly establish the terminal equipment and the corresponding secondary cells.
  • the connection of the secondary node ie, the target secondary node).
  • the configuration information may include a primary cell measurement parameter corresponding to the primary node, a secondary cell measurement parameter corresponding to the primary node, a secondary cell measurement parameter corresponding to at least one secondary node, and a secondary cell measurement parameter corresponding to at least one secondary node. At least one of the primary and secondary cell measurement parameters. Specifically, it can be divided into the following situations:
  • the configuration information only includes the measurement parameters of the primary cell corresponding to the primary node. At this time, the configuration information is used to instruct the terminal device to evaluate the connection status with the master node.
  • the configuration information only includes the measurement parameters of the primary and secondary cells corresponding to at least one secondary node.
  • the configuration information is used to instruct the terminal device to establish a connection with the target secondary node, as shown in the embodiment shown in FIG. 4 or FIG. 5 or FIG. 6 .
  • the configuration information only includes measurement parameters of the secondary cell corresponding to at least one secondary node. At this time, the configuration information is used to instruct the terminal device to establish a connection with the target secondary node, as shown in the embodiment shown in FIG. 8 .
  • the configuration information includes measurement parameters of the secondary cell corresponding to the primary node. At this time, the configuration information is used to instruct the terminal device to evaluate the connection status with the master node.
  • the configuration information includes the primary cell measurement parameter corresponding to the primary node and the secondary cell measurement parameter corresponding to the primary node. At this time, the configuration information is used to instruct the terminal device to evaluate the connection status with the master node.
  • the configuration information includes a primary cell measurement parameter corresponding to the primary node and a primary and secondary cell measurement parameter corresponding to at least one secondary node.
  • the configuration information is used to instruct the terminal device to evaluate the connection status with the primary node and establish a connection with the target secondary node.
  • the configuration information includes a primary cell measurement parameter corresponding to the master node and a secondary cell measurement parameter corresponding to at least one secondary node.
  • the configuration information is used to instruct the terminal device to evaluate the connection status with the primary node and establish a connection with the target secondary node.
  • the configuration information includes secondary cell measurement parameters corresponding to the primary node and primary secondary cell measurement parameters corresponding to at least one secondary node. At this time, the configuration information is used to instruct the terminal device to evaluate the connection status with the primary node and establish a connection with the target secondary node.
  • the configuration information includes a secondary cell measurement parameter corresponding to the primary node and a secondary cell measurement parameter corresponding to at least one secondary node.
  • the configuration information is used to instruct the terminal device to evaluate the connection status with the primary node and establish a connection with the target secondary node.
  • the configuration information includes the primary and secondary cell measurement parameters corresponding to at least one secondary node and the secondary cell measurement parameters corresponding to at least one secondary node. At this time, the configuration information is used to instruct the terminal device to establish a connection with the target secondary node.
  • the configuration information includes measurement parameters of the primary cell corresponding to the primary node, measurement parameters of the secondary cell corresponding to the primary node, and measurement parameters of the primary and secondary cells corresponding to at least one secondary node.
  • the configuration information is used to instruct the terminal device to evaluate the connection status with the primary node and establish a connection with the target secondary node.
  • the configuration information includes measurement parameters of the primary cell corresponding to the primary node, measurement parameters of the secondary cell corresponding to the primary node, and secondary cell measurement parameters corresponding to at least one secondary node.
  • the configuration information is used to instruct the terminal device to evaluate the connection status with the primary node and establish a connection with the target secondary node.
  • the configuration information includes measurement parameters of the primary cell corresponding to the master node, measurement parameters of the primary and secondary cells corresponding to at least one secondary node, and measurement parameters of the secondary cell corresponding to at least one secondary node.
  • the configuration information is used to instruct the terminal device to evaluate the connection status with the primary node and establish a connection with the target secondary node.
  • the configuration information includes secondary cell measurement parameters corresponding to the primary node, primary and secondary cell measurement parameters corresponding to at least one secondary node, and secondary cell measurement parameters corresponding to at least one secondary node.
  • the configuration information is used to instruct the terminal device to evaluate the connection status with the primary node and establish a connection with the target secondary node.
  • the primary and secondary cell measurement parameters are provided by the corresponding secondary node.
  • FIG. 9 is a schematic diagram of signaling interaction of a connection establishment method provided by another embodiment of the present application. As shown in FIG. 9, based on the process shown in FIG. 8, optionally, step S30 may include:
  • the terminal equipment sends the secondary cell evaluation result to the target secondary node to establish a connection with the target secondary node.
  • the target secondary node performs the following processes:
  • the terminal device simultaneously evaluates the primary and secondary cells and the secondary cells according to the configuration information. After confirming that the primary and secondary cells meet the preset execution conditions, start establishing a connection with the target secondary node corresponding to the primary secondary cell, and carry the secondary cell evaluation result or measurement result of the target secondary node at the same time. By sending the secondary cell evaluation result to the target secondary node at the initial stage of establishing the connection between the terminal device and the target secondary node, the target secondary node is helped to quickly configure the secondary cell.
  • the secondary cell evaluation result may be the secondary cell indication information, and optionally, the secondary cell indication information may be information used to identify the secondary cell in the measurement parameter.
  • the measurement result may be RSRP (Reference Signal Received Power, Reference Signal Received Power), RSRQ (Reference Signal Received Quality, Reference Signal Received Quality), SINR (Signal-to-noise and Interference Ratio) measured by the secondary cell , signal-to-noise ratio) or a measurement report trigger event.
  • RSRP Reference Signal Received Power
  • RSRQ Reference Signal Received Quality
  • SINR Signal-to-noise and Interference Ratio
  • the terminal device evaluates the candidate primary and secondary cells to determine the target primary and secondary cells, it evaluates the secondary cells based on the measurement results obtained from the measurement parameters of the secondary cells, and obtains the secondary cells. evaluation result. and after determining that the secondary node whose primary and secondary cells meet the preset execution conditions is the target secondary node, send the secondary cell evaluation result corresponding to the target secondary node to the target secondary node, so that the target secondary node determines whether it is a terminal based on the secondary cell evaluation result The device configures the secondary cell.
  • establishing the connection between the terminal device and the target secondary node includes: the target secondary node configures a primary and secondary cell for the terminal device, and/or the target secondary node configures a secondary cell for the terminal device.
  • the target secondary node determines not to configure the secondary cell for the terminal device based on the secondary cell evaluation result
  • establishing a connection between the terminal device and the target secondary node includes: the target secondary node configures the primary secondary cell for the terminal device; or, when the target secondary node evaluates the secondary cell based on the secondary cell
  • establishing a connection between the terminal equipment and the target secondary node includes: the target secondary node configures the primary secondary cell for the terminal equipment, and/or the target secondary node configures the secondary cell for the terminal equipment.
  • the secondary cell evaluation result may be carried by at least one of the following signaling: MsgA, Msg1, Msg3 and radio resource control signaling.
  • the terminal device sends the secondary cell evaluation result to the target secondary node in the random access phase, for example, through MsgA as shown in FIG. 2 , or Msg1 or Msg3 as shown in FIG. 3 ; in another implementation, The terminal device sends the secondary cell evaluation result in the first RRC signaling after completing random access, such as RRCSetupRequest signaling or RRCSetupComplete signaling, and so on.
  • the random access information carries the cell evaluation result
  • the corresponding secondary cell indication information may indicate a secondary cell that satisfies the evaluation condition.
  • the random access information carries the cell evaluation result, which may be carried in the random access preamble, MsgA sent in the uplink data of the PUSCH, or a newly defined sending method or carrying method, which is not limited in this application. .
  • the connection establishment method may further include: determining the validity of the measurement parameter of the secondary cell.
  • the terminal device cannot follow at least one measurement parameter in the configuration information, the terminal device does not perform cell measurement at this time, that is to say, the configuration information is invalid, and performs the RRC link reestablishment process or returns to Idle state (also called idle state or RRC_IDLE); if the terminal device complies with all measurement parameters in the configuration information, the terminal device performs cell measurement at this time, that is, the configuration information is valid.
  • the terminal equipment uses the NR technology to access the primary node and/or the secondary node.
  • the terminal equipment uses the NR technology to access the primary node; or, the terminal equipment uses the NR technology to access the secondary node; or, the terminal equipment uses the NR technology to access the primary node and the secondary node.
  • connection establishment method may further include: the secondary node sends secondary cell measurement parameters to the primary node.
  • the process for the terminal device to establish a connection with the target secondary node may be in the following two cases:
  • the random access process the process of establishing SRB (Signaling Radio Bearer, signaling radio bearer), and the process of establishing DRB (Data Radio Bearer, data radio bearer).
  • Data transmission can be performed after the terminal device establishes the connection with the target secondary node, thereby reducing the delay of data transmission.
  • connection establishment method further includes at least one of the following:
  • the terminal device When the terminal device has uplink data to transmit, it sends the uplink data to the master node and/or the secondary node; and/or, the terminal device receives the downlink data from the master node and/or the secondary node.
  • connection establishment method further includes at least one of the following:
  • the secondary node When the secondary node has downlink data to transmit, the secondary node sends the downlink data to the terminal device; and/or the secondary node receives the uplink data from the terminal device.
  • FIG. 10 is a schematic diagram of signaling interaction of a connection establishment method provided by another embodiment of the present application. As shown in FIG. 10 , the connection establishment method of this embodiment includes the following steps:
  • the master node acquires configuration information, where the configuration information includes secondary cell measurement parameters corresponding to at least one secondary node.
  • the master node acquires configuration information, where the configuration information is used to instruct the terminal device to establish a connection with a target secondary node according to the configuration information and the measurement result of the master node, where the target secondary node is at least one of the secondary nodes.
  • the master node may acquire the stored configuration information from inside; or, the master node may acquire configuration information from other external devices, which may be specifically set according to actual needs, which is not limited in this embodiment of the present application.
  • the secondary cell measurement parameters are provided by the corresponding secondary node.
  • the secondary cell measurement parameters of the secondary node SN1 are provided by the secondary node SN1
  • the secondary cell measurement parameters of the secondary node SN2 are provided by the secondary node SN2, and so on.
  • the secondary cell measurement parameter may specifically include a measurement configuration (MeasConfig) and a measurement object (MeasObjectNR).
  • the measurement configuration includes a measurement threshold, indicating whether the terminal device needs to perform measurement of related neighbor cells and triggers the reporting threshold.
  • the measurement configuration may further include a measurement report triggering event (Event), which may further differentiate the serving cell and/or the neighboring cell and/or the inter-system cell event and so on.
  • Event measurement report triggering event
  • step S102 the master node executes step S102.
  • the master node sends configuration information.
  • the terminal device executes S103, and receives configuration information.
  • the master node when the master node decides to start the CPA procedure according to the RRC measurement report reported by the terminal device, the master node sends an RRC reconfiguration message to the terminal device.
  • the RRC reconfiguration message in the program is carried.
  • the difference from the RRC reconfiguration message in Fig. 4 is that the configuration information in this embodiment of the present application includes the secondary cell measurement parameters corresponding to the secondary node.
  • the configuration information in this step may be specifically carried by the RRC reconfiguration message in the CPC procedure as shown in FIG. 5 or FIG. 6 .
  • the difference from the RRC reconfiguration message in FIG. 5 or FIG. 6 is that the configuration information in this embodiment of the present application includes secondary cell measurement parameters corresponding to the secondary node.
  • the sending/receiving time point of the above configuration information may include at least one of the following:
  • the configuration information may be carried through radio resource control signaling.
  • the above example is described by taking the RRC reconfiguration message carrying the configuration information mentioned in the embodiment of this application as an example, but it should be noted that this is only an example description, and this application is not limited by this.
  • the configuration information It can also be carried by other radio resource control signaling, for example, the radio resource control signaling received by the terminal device before reporting the RRC measurement report.
  • the terminal device obtains the measurement result of the master node.
  • acquiring the measurement result of the master node may include at least one of the following:
  • RSRP signal strength
  • the time point when the terminal device obtains the measurement result of the master node may include at least one of the following:
  • the time point when the terminal device obtains the measurement result of the master node may also include at least one of the following:
  • the primary node instructs the terminal device to add the primary secondary cell of the secondary node.
  • the terminal may measure the primary node and send the measurement result before step S101.
  • step S104 and before step S105 it is determined that the connection between the terminal and the primary node is still in a stable state, and at the same time, it is ensured that the secondary node and its secondary cells are in a stable state.
  • the cell configuration is still valid, and there should be no difference due to leaving the master node, resulting in unnecessary connection establishment requests and power consumption.
  • the master node when the master node decides to start the CPA procedure according to the RRC measurement report reported by the terminal device, the master node sends an RRC reconfiguration message to the terminal device. In this scenario, the master node obtains the measurement result. Specifically, when the master node instructs the terminal device to add the primary and secondary cells of the secondary node, or before the primary node instructs the terminal device to add the primary and secondary cells of the secondary node, or after the primary node instructs the terminal device to add the primary and secondary cells of the secondary node.
  • the terminal device establishes a connection with the target secondary node according to the configuration information and the measurement result of the primary node.
  • this step can include at least one of the following:
  • Event A1 When the primary cell of the primary node satisfies the event A1 (Event A1), it establishes a connection with the target secondary node according to the configuration information;
  • Event A2 When the primary cell of the primary node does not meet the event A2 (Event A2), it establishes a connection with the target secondary node according to the configuration information.
  • step S104 the terminal device obtains the signal strength of the primary cell of the primary node
  • step S105 when the signal strength of the primary cell of the primary node is greater than the first threshold, the terminal device establishes a connection with the target secondary node according to the configuration information; or,
  • step S104 the terminal device obtains the signal quality of the primary cell of the master node
  • step S105 when the signal quality of the primary cell of the master node is greater than the second threshold, the terminal device establishes a connection with the target secondary node according to the configuration information; or,
  • step S104 the terminal device obtains the signal-to-noise ratio of the primary cell of the master node
  • step S105 when the signal-to-noise ratio of the primary cell of the master node is greater than the third threshold, the terminal device establishes a connection with the target secondary node according to the configuration information; or,
  • step S104 the terminal equipment obtains the signal strength of the primary cell of the master node and the signal quality of the primary cell of the master node
  • step S105 the signal strength of the terminal equipment at the primary cell of the master node is greater than the first threshold, and/or, the master node When the signal quality of the primary cell is greater than the second threshold, establish a connection with the target secondary node according to the configuration information; or,
  • step S104 the terminal equipment obtains the signal strength of the primary cell of the master node and the signal-to-noise ratio of the primary cell of the master node
  • step S105 the signal strength of the terminal equipment at the primary cell of the master node is greater than the first threshold, and/or the primary cell
  • the signal-to-noise ratio of the primary cell of the node is greater than the third threshold, establish a connection with the target secondary node according to the configuration information
  • step S104 the terminal equipment obtains the signal quality of the master node's primary cell and the signal-to-noise ratio of the master node's primary cell
  • step S105 the terminal equipment's signal quality in the master node's primary cell is greater than the second threshold, and/or, the main When the signal-to-noise ratio of the primary cell of the node is greater than the third threshold, establish a connection with the target secondary node according to the configuration information; or,
  • Event A1 When the primary cell of the primary node satisfies the event A1 (Event A1), the terminal device establishes a connection with the target secondary node according to the configuration information; or,
  • the terminal device When the primary cell of the primary node does not satisfy the event A2 (Event A2), the terminal device establishes a connection with the target secondary node according to the configuration information.
  • the terminal device can also evaluate the secondary cell of the target secondary node during the process of establishing a connection with the target secondary node according to the configuration information, so that the terminal device can evaluate the secondary cell of the target secondary node. Quickly configure the secondary cell of the target secondary node, thereby reducing the data transmission delay.
  • the terminal device receives configuration information from the master node, where the configuration information includes measurement parameters of the secondary cell corresponding to at least one secondary node, and establishes a connection with a target secondary node according to the configuration information, where the target secondary node is one of the above secondary nodes at least one of.
  • the configuration information includes measurement parameters of the secondary cells corresponding to the secondary nodes in the configuration information, that is, while adding and changing the primary and secondary cells, consider configuring the secondary cells of the primary and secondary cells corresponding to the secondary nodes for the terminal equipment, so as to quickly establish the terminal equipment and the corresponding secondary cells.
  • the connection of the secondary node that is, the target secondary node).
  • the configuration information may include a primary cell measurement parameter corresponding to the primary node, a secondary cell measurement parameter corresponding to the primary node, a secondary cell measurement parameter corresponding to at least one secondary node, and a secondary cell measurement parameter corresponding to at least one secondary node. At least one of the primary and secondary cell measurement parameters. Specifically, it can be divided into the following situations:
  • the configuration information only includes the measurement parameters of the primary cell corresponding to the primary node. At this time, the configuration information is used to instruct the terminal device to evaluate the connection status with the master node.
  • the configuration information only includes the measurement parameters of the primary and secondary cells corresponding to at least one secondary node.
  • the configuration information is used to instruct the terminal device to establish a connection with the target secondary node, as shown in the embodiment shown in FIG. 4 or FIG. 5 or FIG. 6 .
  • the configuration information only includes measurement parameters of the secondary cell corresponding to at least one secondary node. At this time, the configuration information is used to instruct the terminal device to establish a connection with the target secondary node, as shown in the embodiment shown in FIG. 8 .
  • the configuration information includes measurement parameters of the secondary cell corresponding to the primary node. At this time, the configuration information is used to instruct the terminal device to evaluate the connection status with the master node.
  • the configuration information includes the primary cell measurement parameter corresponding to the primary node and the secondary cell measurement parameter corresponding to the primary node. At this time, the configuration information is used to instruct the terminal device to evaluate the connection status with the master node.
  • the configuration information includes the measurement parameters of the primary cell corresponding to the primary node and the measurement parameters of the primary and secondary cells corresponding to at least one secondary node. At this time, the configuration information is used to instruct the terminal device to evaluate the connection status with the primary node and establish a connection with the target secondary node.
  • the configuration information includes a primary cell measurement parameter corresponding to the master node and a secondary cell measurement parameter corresponding to at least one secondary node.
  • the configuration information is used to instruct the terminal device to evaluate the connection status with the primary node and establish a connection with the target secondary node.
  • the configuration information includes secondary cell measurement parameters corresponding to the primary node and primary secondary cell measurement parameters corresponding to at least one secondary node. At this time, the configuration information is used to instruct the terminal device to evaluate the connection status with the primary node and establish a connection with the target secondary node.
  • the configuration information includes a secondary cell measurement parameter corresponding to the primary node and a secondary cell measurement parameter corresponding to at least one secondary node.
  • the configuration information is used to instruct the terminal device to evaluate the connection status with the primary node and establish a connection with the target secondary node.
  • the configuration information includes the primary and secondary cell measurement parameters corresponding to at least one secondary node and the secondary cell measurement parameters corresponding to at least one secondary node. At this time, the configuration information is used to instruct the terminal device to establish a connection with the target secondary node.
  • the configuration information includes measurement parameters of the primary cell corresponding to the primary node, measurement parameters of the secondary cell corresponding to the primary node, and measurement parameters of the primary and secondary cells corresponding to at least one secondary node.
  • the configuration information is used to instruct the terminal device to evaluate the connection status with the primary node and establish a connection with the target secondary node.
  • the configuration information includes measurement parameters of the primary cell corresponding to the primary node, measurement parameters of the secondary cell corresponding to the primary node, and secondary cell measurement parameters corresponding to at least one secondary node.
  • the configuration information is used to instruct the terminal device to evaluate the connection status with the primary node and establish a connection with the target secondary node.
  • the configuration information includes measurement parameters of the primary cell corresponding to the master node, measurement parameters of the primary and secondary cells corresponding to at least one secondary node, and measurement parameters of the secondary cell corresponding to at least one secondary node.
  • the configuration information is used to instruct the terminal device to evaluate the connection status with the primary node and establish a connection with the target secondary node.
  • the configuration information includes secondary cell measurement parameters corresponding to the primary node, primary and secondary cell measurement parameters corresponding to at least one secondary node, and secondary cell measurement parameters corresponding to at least one secondary node.
  • the configuration information is used to instruct the terminal device to evaluate the connection status with the primary node and establish a connection with the target secondary node.
  • establishing a connection with the target secondary node according to the configuration information may include:
  • the terminal equipment sends the secondary cell evaluation result to the target secondary node to establish a connection with the target secondary node.
  • the target secondary node performs the following processes:
  • the time point at which the secondary cell evaluation result is sent/received may include at least one of the following:
  • the terminal device determines that the signal strength of the primary cell of the master node is greater than the first threshold
  • the terminal device determines that the signal quality of the primary cell of the master node is greater than the second threshold
  • the terminal device determines that the signal-to-noise ratio of the primary cell of the master node is greater than the third threshold
  • the terminal device determines that the primary cell of the primary node satisfies the event A1;
  • the terminal device simultaneously evaluates the primary and secondary cells and the secondary cells according to the configuration information. After confirming that the primary and secondary cells meet the preset execution conditions, start establishing a connection with the target secondary node corresponding to the primary secondary cell, and carry the secondary cell evaluation result or measurement result of the target secondary node at the same time. By sending the secondary cell evaluation result to the target secondary node at the initial stage of establishing the connection between the terminal device and the target secondary node, the target secondary node is helped to quickly configure the secondary cell.
  • the secondary cell evaluation result may be the secondary cell indication information, and optionally, the secondary cell indication information may be information used to identify the secondary cell in the measurement parameter.
  • the measurement result may be RSRP (Reference Signal Received Power, Reference Signal Received Power), RSRQ (Reference Signal Received Quality, Reference Signal Received Quality), SINR (Signal-to-noise and Interference Ratio) measured by the secondary cell , signal-to-noise ratio) or a measurement report trigger event.
  • RSRP Reference Signal Received Power
  • RSRQ Reference Signal Received Quality
  • SINR Signal-to-noise and Interference Ratio
  • the terminal device evaluates the candidate primary and secondary cells to determine the target primary and secondary cells, it evaluates the secondary cells based on the measurement results obtained from the measurement parameters of the secondary cells, and obtains the secondary cells. evaluation result. and after determining that the secondary node whose primary and secondary cells meet the preset execution conditions is the target secondary node, send the secondary cell evaluation result corresponding to the target secondary node to the target secondary node, so that the target secondary node determines whether it is a terminal based on the secondary cell evaluation result The device configures the secondary cell.
  • establishing the connection between the terminal device and the target secondary node includes: the target secondary node configures a primary and secondary cell for the terminal device, and/or the target secondary node configures a secondary cell for the terminal device.
  • the target secondary node determines not to configure the secondary cell for the terminal device based on the secondary cell evaluation result
  • establishing a connection between the terminal device and the target secondary node includes: the target secondary node configures the primary secondary cell for the terminal device; or, when the target secondary node evaluates the secondary cell based on the secondary cell
  • establishing a connection between the terminal equipment and the target secondary node includes: the target secondary node configures the primary secondary cell for the terminal equipment, and/or the target secondary node configures the secondary cell for the terminal equipment.
  • the secondary cell evaluation result may be carried by at least one of the following signaling: MsgA, Msg1, Msg3 and radio resource control signaling.
  • the terminal device sends the secondary cell evaluation result to the target secondary node in the random access phase, for example, through MsgA as shown in FIG. 2 , or Msg1 or Msg3 as shown in FIG. 3 ; in another implementation, The terminal device sends the secondary cell evaluation result in the first RRC signaling after completing random access, such as RRCSetupRequest signaling or RRCSetupComplete signaling, and so on.
  • the random access information carries the cell evaluation result
  • the corresponding secondary cell indication information may indicate a secondary cell that satisfies the evaluation condition.
  • the random access information carries the cell evaluation result, which may be carried in the random access preamble, MsgA sent in the uplink data of the PUSCH, or a newly defined sending method or carrying method, which is not limited in this application. .
  • the connection establishment method may further include: determining the validity of the measurement parameter of the secondary cell.
  • the terminal device cannot follow at least one measurement parameter in the configuration information, the terminal device does not perform cell measurement at this time, that is to say, the configuration information is invalid, and performs the RRC link reestablishment process or returns to Idle state (also called idle state or RRC_IDLE); if the terminal device complies with all measurement parameters in the configuration information, the terminal device performs cell measurement at this time, that is, the configuration information is valid.
  • the terminal equipment uses the NR technology to access the primary node and/or the secondary node.
  • the terminal equipment uses the NR technology to access the primary node; or, the terminal equipment uses the NR technology to access the secondary node; or, the terminal equipment uses the NR technology to access the primary node and the secondary node.
  • connection establishment method may further include: the secondary node sends secondary cell measurement parameters to the primary node.
  • the process for the terminal device to establish a connection with the target secondary node may be in the following two cases:
  • the random access process the process of establishing SRB (Sigaling Radio Bearer, signaling radio bearer), and the process of establishing DRB (Data Radio Bearer, data radio bearer).
  • SRB Signaling Radio Bearer
  • DRB Data Radio Bearer, data radio bearer
  • Data transmission can be performed after the terminal device establishes the connection with the target secondary node, thereby reducing the delay of data transmission.
  • connection establishment method also includes at least one of the following:
  • the terminal device When the terminal device has uplink data to transmit, it sends the uplink data to the master node and/or the secondary node; and/or, the terminal device receives the downlink data from the master node and/or the secondary node.
  • connection establishment method further includes at least one of the following:
  • the secondary node When the secondary node has downlink data to transmit, the secondary node sends the downlink data to the terminal device; and/or the secondary node receives the uplink data from the terminal device.
  • any of the foregoing embodiments may be implemented independently, or may be implemented by any combination of at least two of the foregoing embodiments, which is not limited.
  • the operations and steps implemented by the terminal device may also be implemented by a component (eg, a chip or a circuit) usable in the terminal device, which is not limited in this embodiment of the present application.
  • the operations and steps implemented by the network device may also be implemented by a component (for example, a chip or a circuit) used for the network device, which is not limited in this embodiment of the present application.
  • FIG. 11 is a schematic structural diagram of a connection establishment apparatus provided by an embodiment of the present application.
  • the connection establishment apparatus 60 in this embodiment includes: a transceiver module 61 and a processing module 62 .
  • the connection establishment apparatus 60 in this embodiment can implement the terminal device or the master node or the slave node solution in any of the above embodiments through the transceiver module 61 and the processing module 62, and the implementation principles and technical effects are similar, and will not be repeated here.
  • connection establishment apparatus 60 may be a terminal device, or a component of the terminal device (eg, an integrated circuit, a chip, etc.), or may be other communication modules, which are used to implement any of the above-mentioned embodiments. Corresponds to the operation of the terminal device.
  • connection establishment device 60 may be a master node, or a component of the master node (eg, an integrated circuit, a chip, etc.), or may be other communication modules for implementing any of the above embodiments corresponds to the operation of the network device.
  • connection establishment device 60 may be a secondary node, or a component of the secondary node (eg, an integrated circuit, a chip, etc.), or may be other communication modules for implementing any of the above embodiments corresponds to the operation of the network device.
  • FIG. 12 is a schematic structural diagram of a communication device provided by an embodiment of the present application.
  • the communication device 80 in this embodiment may be the terminal device (or a component usable for the terminal device) or the master node (or the component usable for the master node) or the auxiliary node mentioned in the foregoing method embodiments. Nodes (or widgets that can be used for child nodes).
  • the communication device 80 may be configured to implement the methods described in the foregoing method embodiments and corresponding to the terminal device or the network device. For details, refer to the descriptions in the foregoing method embodiments.
  • the communication device 80 may include one or more processors 81, which may also be referred to as processing units, and may implement certain control or processing functions.
  • the processor 81 may be a general-purpose processor or a special-purpose processor, or the like. For example, it may be a baseband processor, or a central processing unit.
  • the baseband processor can be used to process communication protocols and communication data
  • the central processing unit can be used to control the communication equipment, execute software programs, and process data of the software programs.
  • the processor 81 may also store instructions 83 or data (eg, intermediate data).
  • the instructions 83 may be executed by the processor 81, so that the communication device 80 executes the method described in the above method embodiments corresponding to the terminal device or the network device.
  • the communication device 80 may include a circuit, and the circuit may implement the function of sending or receiving or communicating in the foregoing method embodiments.
  • the communication device 80 may include one or more memories 82 on which instructions 84 may be stored, and the instructions may be executed on the processor 81, so that the communication device 80 executes the methods described in the above method embodiments.
  • data may also be stored in the memory 82 .
  • the processor 81 and the memory 82 can be provided separately or integrated together.
  • the communication device 80 may also include a transceiver 85 and/or an antenna 86 .
  • the processor 81 may be referred to as a processing unit, and controls the communication device 80 (terminal device or core network device or radio access network device).
  • the transceiver 85 may be referred to as a transceiver unit, a transceiver, a transceiver circuit, or a transceiver, etc., and is used to implement the transceiver function of the communication device 80 .
  • the processor 81 may acquire the secondary node activation condition parameter; and/or, according to the secondary node activation condition parameter, Trigger the transceiver 85 to send a secondary node activation request according to a preset rule to obtain a secondary node activation response; and activate the connection between the terminal device and the secondary node according to the secondary node activation response.
  • the transceiver 85 may receive a secondary node activation request.
  • the processor 81 may generate a secondary node activation response according to the secondary node activation request, and trigger the transceiver 85 to send the secondary node activation response; and/or activate the connection between the terminal device and the secondary node according to the secondary node activation response.
  • the processor 81 and the transceiver 85 described in this application can be implemented in IC (Integrated Circuit, integrated circuit), analog integrated circuit, RFIC (Radio Frequency Integrated Circuit, radio frequency integrated circuit), mixed-signal integrated circuit, ASIC (Application Specific Integrated Circuit) Circuit, application-specific integrated circuit), PCB (Printed Circuit Board, printed circuit board), electronic equipment, etc.
  • the processor 81 and the transceiver 85 can also be fabricated by various integrated circuit technology, such as CMOS (Complementary Metal Oxide Semiconductor), NMOS (N Metal-Oxide-Semiconductor, N-type Metal Oxide Semiconductor) ), PMOS (Positive channel Metal Oxide Semiconductor, P-type metal oxide semiconductor), BJT (Bipolar Junction Transistor, bipolar junction transistor), bipolar CMOS (BiCMOS), silicon germanium (SiGe), gallium arsenide (GaAs) Wait.
  • CMOS Complementary Metal Oxide Semiconductor
  • NMOS N Metal-Oxide-Semiconductor, N-type Metal Oxide Semiconductor
  • PMOS Positive channel Metal Oxide Semiconductor, P-type metal oxide semiconductor
  • BJT Bipolar Junction Transistor, bipolar junction transistor
  • BiCMOS bipolar CMOS
  • SiGe silicon germanium
  • GaAs gall
  • the communication device is described by taking the terminal device or the network device as an example, the scope of the communication device described in this application is not limited to the above-mentioned terminal device or network device (including the primary node and the secondary node), Also, the structure of the communication device may not be limited by FIG. 12 .
  • the communication device may be a stand-alone device or may be part of a larger device.
  • An embodiment of the present application further provides a communication system, including: a terminal device as in any of the above method embodiments; a master node as in any of the above method embodiments; and a secondary node as in any of the above method embodiments.
  • the present application also provides a communication device, the device includes: a memory, a processor, and a computer program stored on the memory and executable on the processor, the computer program being implemented when executed by the processor The steps of the method as described above.
  • Embodiments of the present application further provide a readable storage medium, where a computer program is stored on the readable storage medium, and the above method is implemented when the computer program is executed.
  • the embodiments of the present application also provide a program product, where the program product includes computer program code, when the computer program code is run on a computer, the computer program code causes the computer to execute the methods described in the various possible implementation manners above.
  • An embodiment of the present application further provides a chip, including a memory and a processor, the memory is used to store a computer program, and the processor is used to call and run the computer program from the memory, so that a device installed with the chip can perform various possible operations as described above.
  • a chip including a memory and a processor
  • the memory is used to store a computer program
  • the processor is used to call and run the computer program from the memory, so that a device installed with the chip can perform various possible operations as described above. The method described in the embodiments.
  • the disclosed apparatus and method may be implemented in other manners.
  • the device embodiments described above are only illustrative.
  • the division of the modules is only a logical function division. In actual implementation, there may be other division methods.
  • multiple modules may be combined or integrated. to another system, or some features can be ignored, or not implemented.
  • the shown or discussed mutual coupling or direct coupling or communication connection may be through some interfaces, indirect coupling or communication connection of devices or modules, and may be in electrical, mechanical or other forms.
  • modules described as separate components may or may not be physically separated, and components shown as modules may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution in this embodiment.
  • each functional module in each embodiment of the present application may be integrated in one processing unit, or each module may exist physically alone, or two or more modules may be integrated in one unit.
  • the units formed by the above modules can be implemented in the form of hardware, or can be implemented in the form of hardware plus software functional units.
  • the above-mentioned integrated modules implemented in the form of software functional modules may be stored in a computer-readable storage medium.
  • the above-mentioned software function modules are stored in a storage medium, and include several instructions to enable a computer device (which may be a personal computer, a server, or a network device, etc.) or a processor (English: processor) to execute the various embodiments of the present application. part of the method.
  • the above-mentioned storage medium 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 Except programmable read only memory (EPROM), programmable read only memory (PROM), read only memory (ROM), magnetic memory, flash memory, magnetic disk or optical disk.
  • SRAM static random access memory
  • EEPROM electrically erasable programmable read only memory
  • EPROM erasable except programmable read only memory
  • PROM programmable read only memory
  • ROM read only memory
  • magnetic memory flash memory
  • flash memory magnetic disk or optical disk.
  • a storage medium can be any available medium that can be accessed by a general purpose or special purpose computer.
  • An exemplary storage medium is coupled to the processor, such that the processor can read information from, and write information to, the storage medium.
  • the storage medium can also be an integral part of the processor.
  • the processor and the storage medium may be located in an ASIC (Application Specific Integrated Circuits, application specific integrated circuit).
  • the processor and storage medium may also exist in the device as discrete components.
  • first, second, third, etc. may be used herein to describe various information, such information should not be limited by these terms. These terms are only used to distinguish the same type of information from each other.
  • first information may also be referred to as second information, and similarly, second information may also be referred to as first information, without departing from the scope of this document.
  • word “if” as used herein can be interpreted as “at the time of” or “when” or “in response to determining.”
  • the singular forms "a,” “an,” and “the” are intended to include the plural forms as well, unless the context dictates otherwise.
  • A, B, C means “any of the following: A; B; C; A and B; A and C; B and C; A and B and C", for example, " A, B or C” or "A, B and/or C” means "any of the following: A; B; C; A and B; A and C; B and C; A and B and C". Exceptions to this definition arise only when combinations of elements, functions, steps, or operations are inherently mutually exclusive in some way.
  • the words “if”, “if” as used herein may be interpreted as “at” or “when” or “in response to determining” or “in response to detecting”.
  • the phrases “if determined” or “if detected (the stated condition or event)” can be interpreted as “when determined” or “in response to determining” or “when detected (the stated condition or event),” depending on the context )” or “in response to detection (a stated condition or event)”.
  • step codes such as S10 and S20 are used, the purpose of which is to express the corresponding content more clearly and briefly, and does not constitute a substantial restriction on the sequence.
  • S20 will be executed first and then S10, etc., but these should all fall within the protection scope of this application.
  • Terminal devices can be implemented in various forms.
  • the terminal devices described in this application may include mobile phones, tablet computers, notebook computers, palmtop computers, personal digital assistants (Personal Digital Assistant, PDA), portable media players (Portable Media Player, PMP), navigation devices, Mobile terminals such as wearable devices, smart bracelets, and pedometers, as well as stationary terminals such as digital TVs and desktop computers.
  • PDA Personal Digital Assistant
  • PMP portable media players
  • Navigation devices Mobile terminals such as wearable devices, smart bracelets, and pedometers
  • Mobile terminals such as wearable devices, smart bracelets, and pedometers
  • stationary terminals such as digital TVs and desktop computers.
  • a mobile terminal will be used as an example, and those skilled in the art will understand that the construction according to the embodiments of the present application can also be applied to a stationary type of terminal, in addition to elements specially used for mobile purposes.
  • FIG. 13 is a schematic diagram of the hardware structure of a mobile terminal implementing various embodiments of the present application.
  • the mobile terminal 90 may include: an RF (Radio Frequency, radio frequency) unit 91 , a WiFi module 92 , an audio output unit 93 , A /V (audio/video) input unit 94, sensor 95, display unit 96, user input unit 97, interface unit 98, memory 99, processor 100, and power supply 101 and other components.
  • RF Radio Frequency, radio frequency
  • WiFi module 92 Wireless Fidelity unit
  • a /V (audio/video) input unit 94 sensor 95
  • display unit 96 user input unit 97
  • interface unit 98 memory 99
  • processor 100 processor 100
  • power supply 101 power supply 101
  • the radio frequency unit 91 can be used for receiving and sending signals during sending and receiving of information or during a call. Specifically, after receiving the downlink information of the base station, it is processed by the processor 100; optionally, the uplink data is sent to the base station.
  • the radio frequency unit 91 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like.
  • the radio frequency unit 91 can also communicate with the network and other devices through wireless communication.
  • the above-mentioned wireless communication can use any communication standard or protocol, including but not limited to GSM (Global System of Mobile communication, Global System for Mobile Communication), GPRS (General Packet Radio Service, General Packet Radio Service), CDMA2000 (Code Division Multiple Access 2000 , Code Division Multiple Access 2000), WCDMA (Wideband Code Division Multiple Access, Wideband Code Division Multiple Access), TD-SCDMA (Time Division-Synchronous Code Division Multiple Access, Time Division Synchronous Code Division Multiple Access), FDD-LTE (Frequency Division Duplexing-Long Term Evolution, frequency division duplexing long term evolution) and TDD-LTE (Time Division Duplexing-Long Term Evolution, time division duplexing long term evolution) and so on.
  • GSM Global System of Mobile communication, Global System for Mobile Communication
  • GPRS General Packet Radio Service
  • CDMA2000 Code Division Multiple Access 2000
  • Code Division Multiple Access 2000 Code Division Multiple Access 2000
  • WCDMA Wideband Code Division Multiple Access
  • TD-SCDMA Time Division-S
  • WiFi is a short-distance wireless transmission technology
  • the mobile terminal can help users to send and receive emails, browse web pages, and access streaming media through the WiFi module 92, which provides users with wireless broadband Internet access.
  • FIG. 13 shows the WiFi module 92, it can be understood that it is not an essential component of the mobile terminal, and can be completely omitted as required within the scope of not changing the essence of the invention.
  • the audio output unit 93 can store the data received by the radio frequency unit 91 or the WiFi module 92 or stored in the memory 99 when the mobile terminal 90 is in a call signal receiving mode, a talking mode, a recording mode, a voice recognition mode, a broadcast receiving mode, etc.
  • the audio data is converted into audio signal and output as sound.
  • the audio output unit 93 may also provide audio output related to a specific function performed by the mobile terminal 90 (eg, call signal reception sound, message reception sound, etc.).
  • the audio output unit 93 may include a speaker, a buzzer, and the like.
  • the A/V input unit 94 is used to receive audio or video signals.
  • the A/V input unit 94 may include a GPU (Graphics Processing Unit, graphics processor) 941 and a microphone 942, and the graphics processor 941 is used for still pictures or images obtained by an image capture device (such as a camera) in a video capture mode or an image capture mode.
  • the image data of the video is processed.
  • the processed image frames may be displayed on the display unit 96 .
  • the image frames processed by the graphics processor 941 may be stored in the memory 99 (or other storage medium) or transmitted via the radio frequency unit 91 or the WiFi module 92 .
  • the microphone 942 can receive sound (audio data) via the microphone 942 in a telephone call mode, a recording mode, a voice recognition mode, etc., and can process such sound as audio data.
  • the processed audio (voice) data can be converted into a format that can be transmitted to a mobile communication base station via the radio frequency unit 91 for output in the case of a telephone conversation mode.
  • the microphone 942 may implement various types of noise cancellation (or suppression) algorithms to remove (or suppress) noise or interference generated in the process of receiving and transmitting audio signals.
  • the mobile terminal 90 also includes at least one type of sensor 95, such as a light sensor, a motion sensor, and other sensors.
  • the light sensor includes an ambient light sensor and a proximity sensor.
  • the ambient light sensor can adjust the brightness of the display panel 961 according to the brightness of the ambient light, and the proximity sensor can turn off the display when the mobile terminal 90 is moved to the ear. Panel 961 and/or backlight.
  • the accelerometer sensor can detect the magnitude of acceleration in all directions (usually three axes), and can detect the magnitude and direction of gravity when it is stationary.
  • the display unit 96 is used to display information input by the user or information provided to the user.
  • the display unit 96 may include a display panel 961, and the display panel 961 may be configured in the form of an LCD (Liquid Crystal Display, liquid crystal display), an OLED (Organic Light-Emitting Diode, organic light-emitting diode), and the like.
  • LCD Liquid Crystal Display, liquid crystal display
  • OLED Organic Light-Emitting Diode, organic light-emitting diode
  • the user input unit 97 may be used to receive input numerical or character information, and generate key signal input related to user settings and function control of the mobile terminal.
  • the user input unit 97 may include a touch panel 971 and other input devices 972 .
  • the touch panel 971 also known as a touch screen, can collect touch operations by the user on or near it (such as the user's finger, stylus, etc., any suitable object or accessory on or near the touch panel 971). operation), and drive the corresponding connection device according to the preset program.
  • the touch panel 971 may include two parts, a touch detection device and a touch controller.
  • the touch detection device detects the touch orientation of the user, detects the signal brought by the touch operation, and transmits the signal to the touch controller; the touch controller receives the touch information from the touch detection device and converts it into contact coordinates , and then send it to the processor 100, and can receive the command sent by the processor 100 and execute it.
  • the touch panel 971 can be implemented in various types such as resistive, capacitive, infrared, and surface acoustic waves.
  • the user input unit 97 may also include other input devices 972 .
  • other input devices 972 may include, but are not limited to, one or more of physical keyboards, function keys (such as volume control keys, switch keys, etc.), trackballs, mice, joysticks, etc., which are not specifically described here. limited.
  • the touch panel 971 may cover the display panel 961.
  • the touch panel 971 detects a touch operation on or near it, it transmits it to the processor 100 to determine the type of the touch event, and then the processor 100 determines the type of the touch event according to the touch event.
  • the type provides corresponding visual output on the display panel 961.
  • the touch panel 971 and the display panel 961 are used as two independent components to realize the input and output functions of the mobile terminal, but in some embodiments, the touch panel 971 and the display panel 961 may be integrated
  • the input and output functions of the mobile terminal are implemented, which is not specifically limited here.
  • the interface unit 98 serves as an interface through which at least one external device can be connected to the mobile terminal 90 .
  • external devices may include wired or wireless headset ports, external power (or battery charger) ports, wired or wireless data ports, memory card ports, ports for connecting devices with identification modules, audio input/output (I/O) ports, video I/O ports, headphone ports, and more.
  • the interface unit 98 may be used to receive input from external devices (eg, data information, power, etc.) and transmit the received input to one or more elements within the mobile terminal 90 or may be used to communicate between the mobile terminal 90 and the external Transfer data between devices.
  • the memory 99 may be used to store software programs as well as various data.
  • the memory 99 may mainly include a storage program area and a storage data area.
  • the storage program area may store an operating system, an application program required for at least one function (such as a sound playback function, an image playback function, etc.), and the like;
  • the storage data area may Stores data (such as audio data, phonebook, etc.) created according to the use of the mobile phone, and the like.
  • memory 99 may include high-speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid state storage device.
  • the processor 100 is the control center of the mobile terminal, uses various interfaces and lines to connect various parts of the entire mobile terminal, runs or executes the software programs and/or modules stored in the memory 99, and calls the data stored in the memory 99. , perform various functions of the mobile terminal and process data, so as to monitor the mobile terminal as a whole.
  • the processor 100 may include one or more processing units; preferably, the processor 100 may integrate an application processor and a modem processor.
  • the demodulation processor mainly handles wireless communication. It can be understood that, the above-mentioned modulation and demodulation processor may not be integrated into the processor 100.
  • the mobile terminal 90 may also include a power supply 101 (such as a battery) for supplying power to various components.
  • a power supply 101 (such as a battery) for supplying power to various components.
  • the power supply 101 may be logically connected to the processor 100 through a power management system, so as to manage charging, discharging, and power consumption management through the power management system and other functions.
  • the mobile terminal 90 may also include a Bluetooth module, etc., which will not be described herein again.
  • FIG. 14 is an architecture diagram of a communication network system provided by an embodiment of the application.
  • the communication network system is an LTE system of universal mobile communication technology. ) 11, E-UTRAN (Evolved UMTS Terrestrial Radio Access Network, Evolved UMTS Terrestrial Radio Access Network) 12, EPC (Evolved Packet Core, Evolved Packet Core) 13 and the operator's IP service 14.
  • E-UTRAN Evolved UMTS Terrestrial Radio Access Network
  • EPC Evolved Packet Core, Evolved Packet Core
  • the UE11 may be the above-mentioned mobile terminal 90, which will not be repeated here.
  • E-UTRAN 12 includes eNodeB 121 and other eNodeBs 122 and the like.
  • the eNodeB 121 may be connected to other eNodeBs 122 through a backhaul (eg X2 interface), the eNodeB 121 is connected to the EPC 13, and the eNodeB 121 may provide UE 11 access to the EPC 13.
  • a backhaul eg X2 interface
  • EPC 13 may include MME (Mobility Management Entity, mobility management entity) 131, HSS (Home Subscriber Server, home subscriber server) 132, other MME 133, SGW (Serving Gate Way, serving gateway) 134, PGW (PDN Gate Way, Packet data network gateway) 135 and PCRF (Policy and Charging Rules Function, policy and charging functional entity) 136 and so on.
  • MME 131 is a control node that handles signaling between UE 11 and EPC 13, providing bearer and connection management.
  • the HSS 132 is used to provide registers to manage functions such as a home location register (not shown) and to hold user-specific information about service characteristics, data rates, etc.
  • PCRF 136 is the policy and charging control policy decision point for service data flow and IP bearer resources, it is the policy and accounting
  • a charge enforcement functional unit selects and provides available policy and charge control decisions.
  • the IP service 14 may include the Internet, an intranet, an IMS (IP Multimedia Subsystem, IP Multimedia Subsystem) or other IP services and the like.
  • IMS IP Multimedia Subsystem, IP Multimedia Subsystem

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Abstract

La présente demande concerne un procédé d'établissement de connexion, un dispositif, un système, et un support de stockage. Un dispositif de terminal reçoit, d'un nœud maître, des informations de configuration, les informations de configuration comprenant des paramètres de mesure de cellule secondaire correspondant à au moins un nœud secondaire, et le dispositif de terminal établit une connexion avec un nœud secondaire cible selon les informations de configuration, le nœud secondaire cible étant au moins l'un des nœuds secondaires. Dans la présente demande, au moyen d'informations de configuration comprenant des paramètres de mesure de cellule secondaire correspondant à un nœud secondaire, l'objectif de l'établissement rapide d'une connexion entre un dispositif de terminal et un nœud secondaire correspondant (tel qu'un nœud secondaire cible) est réalisé.
PCT/CN2021/075260 2021-02-04 2021-02-04 Procédé d'établissement de connexion, dispositif, système, et support de stockage WO2022165704A1 (fr)

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PCT/CN2021/075260 WO2022165704A1 (fr) 2021-02-04 2021-02-04 Procédé d'établissement de connexion, dispositif, système, et support de stockage
CN202180091954.6A CN116762395A (zh) 2021-02-04 2021-02-04 连接建立方法、设备、系统及存储介质

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