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WO2019095110A1 - Procédé de communication, dispositif de réseau, et support de stockage informatique - Google Patents

Procédé de communication, dispositif de réseau, et support de stockage informatique Download PDF

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Publication number
WO2019095110A1
WO2019095110A1 PCT/CN2017/110930 CN2017110930W WO2019095110A1 WO 2019095110 A1 WO2019095110 A1 WO 2019095110A1 CN 2017110930 W CN2017110930 W CN 2017110930W WO 2019095110 A1 WO2019095110 A1 WO 2019095110A1
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WO
WIPO (PCT)
Prior art keywords
network device
information
version
pdcp
target
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2017/110930
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English (en)
Chinese (zh)
Inventor
唐海
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guangdong Oppo Mobile Telecommunications Corp Ltd
Original Assignee
Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by Guangdong Oppo Mobile Telecommunications Corp Ltd filed Critical Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority to PCT/CN2017/110930 priority Critical patent/WO2019095110A1/fr
Priority to CN201780047525.2A priority patent/CN109565724B/zh
Publication of WO2019095110A1 publication Critical patent/WO2019095110A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0011—Control or signalling for completing the hand-off for data sessions of end-to-end connection
    • H04W36/0016—Hand-off preparation specially adapted for end-to-end data sessions
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0055—Transmission or use of information for re-establishing the radio link

Definitions

  • the present invention relates to the field of communication processing technologies, and in particular, to a handover processing method, a network device, and a computer storage medium.
  • the radio bearers on the LTE base station there are two forms for the radio bearers on the LTE base station: the LTE version of the PDCP layer, the lower layer is the LTE version of the RLC and MAC layer, the NR version of the PDCP layer, and the lower layer is the LTE version. RLC and MAC layers.
  • the PDCP version reconfiguration may occur.
  • the version is reconfigured, the user's bearer may experience an interruption, which may cause a certain amount of packet loss.
  • the embodiment of the present invention provides a handover processing method, a network device, and a computer storage medium.
  • a handover processing method provided by the embodiment of the present invention is applied to a first network device, and includes:
  • the first information includes at least the indication information of the first version of the PDCP corresponding to the target bearer of the target terminal.
  • the performing handover processing on the target terminal based on the second information includes:
  • the second information includes: the second network device supports the indication information of the first version of the PDCP.
  • the second information includes: information that the second network device does not support the first version of the PDCP, and information that the second network device indicates that the target terminal needs to use a PDCP target version.
  • the second information includes: the second network device indicates a PDCP target version used by the target terminal.
  • the first network device is different from the second network device, and the first network device and the second network device respectively belong to different RATs.
  • An embodiment of the present invention provides a handover processing method, which is applied to a second network device, and includes:
  • the first information includes at least the indication information of the first version of the PDCP corresponding to the target bearer of the target terminal;
  • the generating second information for the target terminal includes:
  • the generating the second information for the target terminal based on the first information includes:
  • the first network device is different from the second network device, and the first network device and the second network device respectively belong to different RATs.
  • the embodiment of the invention provides a first network device, including:
  • a first processing unit when the target terminal needs to switch to the second network device, acquiring a first version of the PDCP used by the target bearer of the target terminal; and generating the first information based on the first version of the PDCP used by the target bearer of the target terminal And performing switching processing on the target terminal based on the second information;
  • the first communication unit sends the first information to the second network device, and receives the second information sent by the second network device.
  • the first information includes at least the indication information of the first version of the PDCP corresponding to the target bearer of the target terminal.
  • the first processing unit sends the second information to the target terminal by using the first communication unit.
  • the second information includes: the second network device supports the indication information of the first version of the PDCP.
  • the second information includes: information that the second network device does not support the first version of the PDCP, and information that the second network device indicates that the target terminal needs to use a PDCP target version.
  • the second information includes: the second network device indicates a PDCP target version used by the target terminal.
  • the first network device is different from the second network device, and the first network device and the second network device respectively belong to different RATs.
  • the embodiment of the invention provides a second network device, including:
  • the second communication unit receives the first information sent by the first network device, where the first information includes at least the indication information of the first version of the PDCP corresponding to the target bearer of the target terminal; Two information to the first network device;
  • the second processing unit generates second information for the target terminal based on the first information.
  • the second processing unit generates second information indicating a PDCP target version used by the target terminal.
  • the second processing unit acquires, from the first information, a first version of the PDCP used by the target bearer of the target terminal;
  • the indication information supporting the first version of the PDCP is added to the second information
  • the first network device is different from the second network device, and the first network device and the second network device respectively belong to different RATs.
  • Embodiments of the present invention provide a network device, including: a processor and a memory for storing a computer program capable of running on a processor,
  • processor is configured to perform the steps of the foregoing method when the computer program is run.
  • a computer storage medium is provided by the embodiment of the present invention.
  • the computer storage medium stores computer executable instructions, and the foregoing method steps are implemented when the computer executable instructions are executed.
  • the first network device corresponding to the target terminal sends the PDCP version of the target host to the second network device, and then sends the packet according to the second network device.
  • the second information performs handover processing on the target terminal.
  • the second network device can obtain the PDCP version of the target terminal during the handover process, thereby ensuring that the second network device optimizes the PDCP version currently used by the target terminal when determining the second information, so that the target terminal can be reduced. Issues such as bearer interruption and packet loss due to PDCP version reconfiguration during handover.
  • FIG. 1 is a schematic flowchart 1 of a handover processing method according to an embodiment of the present invention.
  • FIG. 2 is a schematic flowchart 2 of a handover processing method according to an embodiment of the present invention
  • FIG. 3 is a schematic structural diagram 1 of a network device according to an embodiment of the present invention.
  • FIG. 4 is a schematic structural diagram 2 of a network device according to an embodiment of the present invention.
  • FIG. 5 is a schematic diagram of a hardware architecture according to an embodiment of the present invention.
  • An embodiment of the present invention provides a handover processing method, which is applied to a first network device, as shown in FIG. 1 , and includes:
  • Step 101 Obtain a first version of the PDCP used by the target bearer of the target terminal when the target terminal needs to switch to the second network device.
  • Step 102 Generate first information based on the first version of the PDCP used by the target bearer of the target terminal, and send the first information to the second network device.
  • Step 103 Receive second information sent by the second network device, and perform handover processing on the target terminal based on the second information.
  • the first network device may be a base station to which the target terminal is currently connected, that is, The original base station serving the target terminal;
  • the second network device may be the base station to which the target terminal is to be handed over, that is, the target base station selected when the target terminal is switched.
  • the first network device is different from the second network device, and the first network device and the second network device respectively belong to different RATs.
  • two network devices that is, two base stations, may belong to LTE and NR, respectively.
  • the target bearer of the target terminal may be a bearer currently used by the target terminal;
  • the PDCP version may include an LTE PDCP version, or may include an NR PDCP version or the like.
  • the first information may be generated, where the first information may include: indication information of the first version of the PDCP corresponding to the target bearer of the target terminal.
  • the first network device first sends the version used by the current bearer of the target terminal to the second network device (that is, the target base station of the target terminal), where the identifier information of the target terminal and the PDCP version may be included. Identification information. Of course, other information can be included, but it will not be repeated here.
  • the second network device can perform corresponding processing according to the received first information.
  • the method may include: extracting, from the first information, a PDCP version used by the target bearer of the target terminal. The first version of PDCP;
  • the second network device determines that the judgment result is obtained, there may be multiple processing manners:
  • Manner 1 When the judgment result indicates that the second network device supports the first version of the PDCP, the information indicating that the target terminal uses the first version of the PDCP may be sent to the first network device as the second information.
  • the second information includes: the second network device supports the indication information of the first version of the PDCP.
  • the second network device may not support the information of the first version of the PDCP, and the second network device indicates the The target terminal needs to use the information of the PDCP target version as the second information. That is, the second information includes information that the second network device does not support the first version of the PDCP, and information that the second network device indicates that the target terminal needs to use the PDCP target version.
  • the second network device may only send the PDCP version that is allowed to be used by the target terminal to the target terminal, that is, the second network device may be used to indicate the target terminal.
  • the PDCP target version is sent as the second information to the first network device.
  • the second information includes the PDCP target version used by the second network device to indicate the target terminal.
  • the PDCP target version in the second information may be the first version of the PDCP; when the second network device part supports the first version of the PDCP, then in the second information
  • the PDCP target version can be the second version of PDCP.
  • step 103 performing handover processing on the target terminal based on the second information, specifically, sending the second information to the target terminal, so that the target terminal can determine whether to convert the PDCP version based on the second information.
  • the solution provided in this embodiment can send information to the target node (that is, the second network device) by the original network node (that is, the first network device) in the target during the handover process of the target terminal.
  • the target base station After receiving the message, the target base station confirms that the target base station can use the same version of the PDCP entity to serve the current bearer, and then preferentially uses the current version of the PDCP entity. If the target base station does not support the PDCP entity, the target base station does not support the version.
  • the first network device transmits its supported PDCP target version to cause the target terminal to switch PDCP entities.
  • the first network device corresponding to the target terminal sends the PDCP version of the target bearer of the target terminal to the second network device, and then sends the second network device according to the second network device.
  • the second information is switched to the target terminal.
  • the second network device can obtain the PDCP version of the target terminal during the handover process, thereby ensuring that the second network device optimizes the PDCP version currently used by the target terminal when determining the second information, so that the target terminal can be reduced. Issues such as bearer interruption and packet loss due to PDCP version reconfiguration during handover.
  • the embodiment of the present invention provides a handover processing method, which is applied to a second network device, as shown in FIG. 2, and includes:
  • Step 201 Receive first information sent by the first network device, where the first information includes at least indication information of a first version of the PDCP corresponding to the target bearer of the target terminal.
  • Step 202 Generate second information for the target terminal based on the first information.
  • Step 203 Send the second information to the first network device.
  • the first network device may be a base station to which the target terminal is currently connected, that is, an original base station serving the target terminal; and the second network device may be a base station to which the target terminal is to be switched, that is, The target base station selected when the target terminal switches.
  • the first network device is different from the second network device, and the first network device and the second network device respectively belong to different RATs.
  • two network devices that is, two base stations, may belong to LTE and NR, respectively.
  • the PDCP version may include an LTE PDCP version, or may include an NR PDCP version or the like.
  • the first version of the PDCP may be an LTE PDCP or an NR PDCP.
  • the first network device first sends the version used by the current bearer of the target terminal to the second network device (that is, the target base station of the target terminal), where the first information may include the identifier information of the target terminal and the PDCP version. Identification information. Of course, it can also include His information is only to be repeated here.
  • the second network device can perform corresponding processing according to the received first information; for example, generating the second information for the target terminal based on the first information may include the following multiple processing manners:
  • the processing manner is as follows: generating second information indicating a PDCP target version used by the target terminal.
  • the first version of the PDCP it is determined whether the support is supported by the first version of the PDCP. If the support is not supported, the second version of the PDCP is transmitted as the second information to the first network device. The version is then added to the second information by adding the PDCP target version to the first network device.
  • the second mode is to determine whether the first version of the PDCP is supported, and the judgment result is obtained.
  • the indication information supporting the first version of the PDCP is added to the second information
  • the difference from the processing mode is that when the second network device supports the first version of the PDCP, the first network device may be selected to send only one indication information, and the indication information may only indicate that the target terminal is allowed to keep the first version of the PDCP.
  • the PDCP target version needs to be sent to the first network device only when the second network device does not support the first version of the PDCP. In this case, the PDCP target version must be different from the first version and can be the second version of the PDCP.
  • the solution provided in this embodiment can send information to the target node (that is, the second network device) by the original network node (that is, the first network device) in the target during the handover process of the target terminal.
  • the target base station After receiving the message, the target base station confirms that the target base station can use the same version of PDCP. If the physical service is currently carried, the current version of the PDCP entity is preferentially used. If the target entity does not support the PDCP entity, the PDCP target version supported by the first network device is sent to the target terminal. Switch the PDCP entity.
  • the first network device corresponding to the target terminal sends the PDCP version of the target bearer of the target terminal to the second network device, and then sends the second network device according to the second network device.
  • the second information is switched to the target terminal.
  • the second network device can obtain the PDCP version of the target terminal during the handover process, thereby ensuring that the second network device optimizes the PDCP version currently used by the target terminal when determining the second information, so that the target terminal can be reduced. Issues such as bearer interruption and packet loss due to PDCP version reconfiguration during handover.
  • An embodiment of the present invention provides a first network device, as shown in FIG. 3, including:
  • the first processing unit 31 is configured to acquire a first version of the PDCP used by the target bearer of the target terminal when the target terminal needs to switch to the second network device, and generate the first version of the first version of the PDCP used by the target bearer of the target terminal. Information; and performing handover processing on the target terminal based on the second information;
  • the first communication unit 32 sends the first information to the second network device, and receives the second information sent by the second network device.
  • the first network device may be a base station to which the target terminal is currently connected, that is, an original base station serving the target terminal; and the second network device may be a base station to which the target terminal is to be switched, that is, The target base station selected when the target terminal switches.
  • the first network device is different from the second network device, and the first network device and the second network device respectively belong to different RATs.
  • two network devices that is, two base stations, may belong to LTE and NR, respectively.
  • the target bearer of the target terminal may be a bearer currently used by the target terminal; the PDCP version It may include an LTE PDCP version, or may include an NR PDCP version or the like.
  • the first information may include: indication information of the first version of the PDCP corresponding to the target bearer of the target terminal.
  • the first network device first sends the version used by the current bearer of the target terminal to the second network device (that is, the target base station of the target terminal), where the identifier information of the target terminal and the PDCP version may be included. Identification information. Of course, other information can be included, but it will not be repeated here.
  • the second network device can perform the corresponding processing according to the received first information.
  • the method may include: extracting, from the first information, the PDCP version used by the target bearer of the target terminal as the first version of the PDCP;
  • the second network device determines that the judgment result is obtained, there may be multiple processing manners:
  • Manner 1 When the judgment result indicates that the second network device supports the first version of the PDCP, the information indicating that the target terminal uses the first version of the PDCP may be sent to the first network device as the second information.
  • the second information includes: the second network device supports the indication information of the first version of the PDCP.
  • the second network device may not support the information of the first version of the PDCP, and the second network device indicates the The target terminal needs to use the information of the PDCP target version as the second information. That is, the second information includes information that the second network device does not support the first version of the PDCP, and information that the second network device indicates that the target terminal needs to use the PDCP target version.
  • the second network device may only allow The PDCP version used by the target terminal is sent to the target terminal, that is, the PDCP target version used by the second network device to be used by the target terminal may be sent to the first network device as the second information.
  • the second information includes the PDCP target version used by the second network device to indicate the target terminal.
  • the PDCP target version in the second information may be the first version of the PDCP; when the second network device part supports the first version of the PDCP, then in the second information
  • the PDCP target version can be the second version of PDCP.
  • step 103 performing handover processing on the target terminal based on the second information, specifically, sending the second information to the target terminal, so that the target terminal can determine whether to convert the PDCP version based on the second information.
  • the solution provided in this embodiment can send information to the target node (that is, the second network device) by the original network node (that is, the first network device) in the target during the handover process of the target terminal.
  • the target base station After receiving the message, the target base station confirms that the target base station can use the same version of the PDCP entity to serve the current bearer, and then preferentially uses the current version of the PDCP entity. If the target base station does not support the PDCP entity, the target base station does not support the version.
  • the first network device transmits its supported PDCP target version to cause the target terminal to switch PDCP entities.
  • the first network device corresponding to the target terminal sends the PDCP version of the target bearer of the target terminal to the second network device, and then sends the second network device according to the second network device.
  • the second information is switched to the target terminal.
  • the second network device can obtain the PDCP version of the target terminal during the handover process, thereby ensuring that the second network device optimizes the PDCP version currently used by the target terminal when determining the second information, so that the target terminal can be reduced. Issues such as bearer interruption and packet loss due to PDCP version reconfiguration during handover.
  • An embodiment of the present invention provides a second network device, as shown in FIG. 4, including:
  • the second communication unit 41 receives the first information sent by the first network device, where the first information includes at least the indication information of the first version of the PDCP corresponding to the target bearer of the target terminal; Second information to the first network device;
  • the second processing unit 42 generates second information for the target terminal based on the first information.
  • the first network device may be a base station to which the target terminal is currently connected, that is, an original base station serving the target terminal; and the second network device may be a base station to which the target terminal is to be switched, that is, The target base station selected when the target terminal switches.
  • the first network device is different from the second network device, and the first network device and the second network device respectively belong to different RATs.
  • two network devices that is, two base stations, may belong to LTE and NR, respectively.
  • the PDCP version may include an LTE PDCP version, or may include an NR PDCP version or the like.
  • the first version of the PDCP may be an LTE PDCP or an NR PDCP.
  • the first network device first sends the version used by the current bearer of the target terminal to the second network device (that is, the target base station of the target terminal), where the first information may include the identifier information of the target terminal and the PDCP version. Identification information. Of course, other information can be included, but it will not be repeated here.
  • the second network device can perform corresponding processing according to the received first information; for example, generating the second information for the target terminal based on the first information may include the following multiple processing manners:
  • the second processing unit 42 generates second information indicating a PDCP target version used by the target terminal.
  • the first version of PDCP determine whether it supports it. If it supports, it will The first version of the PDCP is sent as the second version to the first network device as the target version; if not, the second version of the PDCP can be used as the target version, and then the PDCP target version is added to the second information and sent to the first network device.
  • the second processing unit 42 determines whether the first version of the PDCP is supported, and obtains a determination result.
  • the indication information supporting the first version of the PDCP is added to the second information
  • the difference from the processing mode is that when the second network device supports the first version of the PDCP, the first network device may be selected to send only one indication information, and the indication information may only indicate that the target terminal is allowed to keep the first version of the PDCP.
  • the PDCP target version needs to be sent to the first network device only when the second network device does not support the first version of the PDCP. In this case, the PDCP target version must be different from the first version and can be the second version of the PDCP.
  • the solution provided in this embodiment can send information to the target node (that is, the second network device) by the original network node (that is, the first network device) in the target during the handover process of the target terminal.
  • the target base station After receiving the message, the target base station confirms that the target base station can use the same version of the PDCP entity to serve the current bearer, and then preferentially uses the current version of the PDCP entity. If the target base station does not support the PDCP entity, the target base station does not support the version.
  • the first network device transmits its supported PDCP target version to cause the target terminal to switch PDCP entities.
  • the first network device corresponding to the target terminal sends the PDCP version of the target bearer of the target terminal to the second network device, and then sends the second network device according to the second network device.
  • the second information is switched to the target terminal.
  • the second network device can obtain the PDCP version of the target terminal during the handover process, thereby ensuring that the second network device optimizes the PDCP version currently used by the target terminal when determining the second information, so that the target terminal can be reduced. Issues such as bearer interruption and packet loss due to PDCP version reconfiguration during handover.
  • the embodiment of the present invention further provides a network device, which may be the hardware component architecture of the first network device or the second network device in the first to fourth embodiments.
  • the method includes: at least one processor 51, and a memory. 52. At least one network interface 53.
  • the various components are coupled together by a bus system 54.
  • bus system 54 is used to implement connection communication between these components.
  • the bus system 54 includes, in addition to the data bus, a power bus, a control bus, and a status signal bus. However, for clarity of description, various buses are labeled as bus system 54 in FIG.
  • the memory 52 in the embodiments of the present invention may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memory.
  • memory 52 stores elements, executable modules or data structures, or a subset thereof, or their extension set:
  • the processor 51 is configured to be able to process the method steps of the foregoing Embodiment 1 or Embodiment 2, and details are not described herein.
  • the embodiment of the present invention provides a computer storage medium, where the computer storage medium stores computer executable instructions, and when the computer executable instructions are executed, the method steps of the first embodiment or the second embodiment are implemented.
  • Embodiments of the Invention may be stored in a computer readable storage medium if it is implemented in the form of a software function module and sold or used as a standalone product. Based on such understanding, the technical solution of the embodiments of the present invention may be embodied in the form of a software product in essence or in the form of a software product stored in a storage medium, including a plurality of instructions.
  • Make a computer device can be a personal computer, service The server, or network device, etc.
  • the foregoing storage medium includes various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read only memory (ROM), a magnetic disk, or an optical disk.
  • ROM read only memory
  • embodiments of the invention are not limited to any specific combination of hardware and software.
  • an embodiment of the present invention further provides a computer storage medium, wherein a computer program is configured, and the computer program is configured to execute a data scheduling method according to an embodiment of the present invention.

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  • Computer Networks & Wireless Communication (AREA)
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Abstract

La présente invention concerne un procédé de commutation, un dispositif de réseau, et un support de stockage informatique. Le procédé comprend les étapes suivantes : lorsqu'un terminal cible doit commuter vers un second dispositif de réseau, obtenir une première version du PDCP utilisé par un support cible du terminal cible ; générer des premières informations sur la base de la première version du PDCP utilisé par le porteur de cible du terminal cible, et envoyer les premières informations au second dispositif de réseau ; et recevoir des secondes informations envoyées par le second dispositif de réseau, et commuter le terminal cible sur la base des secondes informations.
PCT/CN2017/110930 2017-11-14 2017-11-14 Procédé de communication, dispositif de réseau, et support de stockage informatique Ceased WO2019095110A1 (fr)

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PCT/CN2017/110930 WO2019095110A1 (fr) 2017-11-14 2017-11-14 Procédé de communication, dispositif de réseau, et support de stockage informatique
CN201780047525.2A CN109565724B (zh) 2017-11-14 2017-11-14 一种切换处理方法、网络设备及计算机存储介质

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