WO2022267933A1 - Procédé de radiomessagerie, terminal et dispositif de côté réseau - Google Patents

Procédé de radiomessagerie, terminal et dispositif de côté réseau Download PDF

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Publication number
WO2022267933A1
WO2022267933A1 PCT/CN2022/098633 CN2022098633W WO2022267933A1 WO 2022267933 A1 WO2022267933 A1 WO 2022267933A1 CN 2022098633 W CN2022098633 W CN 2022098633W WO 2022267933 A1 WO2022267933 A1 WO 2022267933A1
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WO
WIPO (PCT)
Prior art keywords
network
terminal
domain
call
call establishment
Prior art date
Application number
PCT/CN2022/098633
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English (en)
Chinese (zh)
Inventor
黄黎
Original Assignee
维沃移动通信有限公司
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.)
Filing date
Publication date
Application filed by 维沃移动通信有限公司 filed Critical 维沃移动通信有限公司
Publication of WO2022267933A1 publication Critical patent/WO2022267933A1/fr

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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
    • H04W36/0022—Control or signalling for completing the hand-off for data sessions of end-to-end connection for transferring data sessions between adjacent core network technologies
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/14—Reselecting a network or an air interface
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/24—Reselection being triggered by specific parameters
    • H04W36/30—Reselection being triggered by specific parameters by measured or perceived connection quality data
    • H04W36/305—Handover due to radio link failure
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/19—Connection re-establishment

Definitions

  • FIG. 3 is the third schematic flow diagram of the call method provided by the embodiment of the present application.
  • FIG. 4 is the fourth schematic flow diagram of the call method provided by the embodiment of the present application.
  • the called call has not been established successfully for more than a second preset time period since receiving the called call establishment request sent by the IMS network through the first network; and/or,
  • the terminal before the terminal receives the called call establishment request sent by the IMS network through the first network before the second preset duration, if the terminal receives paging and enters the connected state, If the transmission control protocol (Transmission Control Protocol, TCP) data packet retransmission of the preset number of INVITE messages is received at the same time, it means that the first INVITE message on the network side has been sent for a long time, that is, it has exceeded or is about to exceed the normal time.
  • TCP Transmission Control Protocol
  • the terminal can actively perform cell reselection (cell reselection), and the terminal can independently complete the camping on the second network without the participation of the network side; or, the terminal can also guide the network to trigger redirection (redirection), That is to say, the network needs to meet certain conditions to trigger redirection, redirect the terminal from the first network to the second network, and the terminal sends certain information to the network side to guide the network side to determine that the terminal meets the redirection conditions, and then Make the network side initiate redirection to realize redirection from the first network to the second network; or, the terminal can also handover (handover) to the second network.
  • redirection redirection
  • the service centralization and continuity application server SCC AS detects that the terminal has been registered in the CS domain.
  • the condition for meeting the redial call may be: the third preset duration has been reached since the moment of receiving the first SIP error code sent by the terminal through the first network, or the first SIP error code sent from the IMS network to the terminal.
  • the third preset duration has been reached since the moment of the SIP message, or the service centralization and continuity application server SCC AS detects that the terminal has registered in the CS domain;
  • the domain re-initiates the call setup request to the terminal.
  • the purpose of waiting for the third preset duration is to reserve time for the terminal to camp on the second network, perform TAU on the second network, and complete the registration in the CS domain.
  • the service centralization and continuity application server SCC AS When receiving the first SIP error code sent by the terminal through the first network or when the IMS network sends the first SIP message to the terminal, the service centralization and continuity application server SCC AS is in the CS for the first time The domain re-initiates a call setup request to the terminal;
  • the SCC AS attempts to re-initiate the call establishment request to the terminal in the CS domain.
  • the purpose of this is to increase the speed of call establishment.
  • the terminal has not yet completed registration in the CS domain. Therefore, in the When the service centralization and continuity application server SCC AS learns that the terminal is not registered in the CS domain, it accumulates the fourth time period since the time when the business centralization and continuity application server SCC AS learns that the terminal is not registered in the CS domain.
  • the preset duration after reaching the fourth preset duration, re-initiate a call establishment request to the terminal in the CS domain, thereby improving the success rate of call establishment.
  • the preset interactive behavior occurs within a fifth preset time period from the moment when the IMS network sends the call establishment request through the first network.
  • the IMS network since the IMS network sends a call setup request through the first network, and subsequently sends multiple SIP INVITE requests, it means that the first INVITE message has been sent for a long time, that is, it has exceeded or is about to exceed the normal time.
  • the time it takes to establish a call because the TCP retransmission or SIP retransmission interval is stipulated in the protocol, or is fixedly configured, so the possible INVITE message within the time it takes to normally establish a call can be calculated based on the known retransmission time The number of retransmissions, and then judge whether it has exceeded or is about to exceed the time spent to establish a call normally, so as to determine whether an abnormality occurs in the call establishment process.
  • the network side device when the re-calling condition is met, the network side device will re-initiate the call establishment request in the CS domain.
  • the condition for satisfying the re-call may be: the sixth preset duration after exceeding the fifth preset duration from the moment when the IMS network sends the call establishment request through the first network, or service centralization and continuity
  • the application server SCC AS detects that the terminal has registered in the CS domain; if any of the above conditions are met, it can try to re-initiate a call establishment request to the terminal in the CS domain.
  • the purpose of waiting for the sixth preset duration is to reserve time for the terminal to camp on the second network, perform TAU on the second network, and complete registration in the CS domain.
  • re-initiating the call establishment request to the terminal in the CS domain includes:
  • Step 4 Immediately after the timer t1' expires, actively camp on the 4G LTE network through the interoperation of 5G and 4G.
  • the method of actively going to the 4G network is as described in the previous embodiment, and will not be repeated here.
  • Step 5 The SCC AS of the network-side device does not try to re-initiate the call in the CS domain immediately after the timing t1 times out (that is, the time when the network-side device sends the SIP INVITE message reaches t1), but starts the timer t3.
  • the purpose of timer t3 is to wait for the terminal to complete step 4 and step 6.
  • Step 1 and Step 2 The network-side device sends a called call establishment request to the terminal through the 5G network, which is specifically represented by the terminal receiving the SIP INVITE message/request sent by the network-side device in the IMS protocol;
  • the terminal receives the paging sent by the network very late in the idle state
  • Step 7 When t4 times out, or the SCC AS detects that the terminal has registered in the CS domain, the network side device reselects to the CS domain to initiate a call establishment request. Specifically, after the SCC AS transfers the call establishment request to the CS domain, the call establishment request It will be forwarded to the LTE core network.
  • Step 3 Before t1' times out, preset interactive behaviors occur. Through these preset interactive behaviors, it is judged that the IMS call establishment process has actually failed.
  • the preset interactive behaviors include but are not limited to:
  • Step 4 Immediately after the preset interactive behavior occurs, actively camp on the 4G LTE network through the interoperation of 5G and 4G.
  • the method of actively going to the 4G network is as described in the previous embodiment, and will not be repeated here.
  • Step 5 The SCC AS of the network side device starts the timer t3 after the timing t1 times out (that is, the moment when the network side device sends the SIP INVITE message reaches t1), and the purpose of this timer t3 is to wait for the terminal to complete steps 4 and 2. step6.
  • Step 6 The terminal performs joint location update TAU on the LTE network.
  • the terminal can register in the CS domain of the core network, which provides conditions for the subsequent SCC AS to re-initiate a call request in the CS domain.
  • the terminal should stay in LTE for t_lte to wait for the SCC AS to initiate a call in the CS domain.
  • t_lte expires, the terminal can choose to return to 5G SA or stay in LTE.
  • Step 7 When t3 times out, or the SCC AS detects that the terminal has registered in the CS domain, the network side device reselects to the CS domain to initiate a call establishment request. Specifically, after the SCC AS transfers the call establishment request to the CS domain, the call establishment request It will be forwarded to the LTE core network.
  • the terminal takes the preset interactive behavior before receiving the called call establishment request sent by the IMS network through the first network before the second preset duration.
  • the specific steps are as follows.
  • Step 4 Immediately after the preset interactive behavior occurs, actively camp on the 4G LTE network through the interoperation of 5G and 4G.
  • the method of actively going to the 4G network is as described in the previous embodiment, and will not be repeated here.
  • Step 7 When t4 times out, or the SCC AS detects that the terminal has registered in the CS domain, the network side device reselects to the CS domain to initiate a call establishment request. Specifically, after the SCC AS transfers the call establishment request to the CS domain, the call establishment request It will be forwarded to the LTE core network.
  • FIG. 5 is one of the schematic structural diagrams of a terminal provided in this embodiment of the present application.
  • the embodiment of the third aspect of the present application also provides a terminal, and the terminal 50 includes:
  • a response unit configured to set up a call in the CS domain in response to the call set up request.
  • the time difference between the SIP request and the SIP reply is less than a preset duration threshold; and/or,
  • the call module includes:
  • the time difference between the SIP request and the SIP reply is less than a preset duration threshold; and/or,
  • the first preset duration of staying on the second network includes:

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Telephonic Communication Services (AREA)

Abstract

La présente invention se rapporte au domaine technique des communications. L'invention concerne un procédé de radiomessagerie, un terminal et un dispositif de côté réseau. Le procédé est appliqué à un terminal, et comprend les étapes suivantes : lorsqu'un processus d'établissement d'appel appelé sur un premier réseau est anormal, réaliser l'hébergement sur un deuxième réseau pendant une première durée prédéfinie ; lancer une procédure de mise à jour de zone de suivi (TAU) sur le deuxième réseau pour s'enregistrer dans un domaine CS ; et rétablir un appel dans le domaine CS.
PCT/CN2022/098633 2021-06-21 2022-06-14 Procédé de radiomessagerie, terminal et dispositif de côté réseau WO2022267933A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202110686159.3 2021-06-21
CN202110686159.3A CN113242583B (zh) 2021-06-21 2021-06-21 一种呼叫方法、终端和网络侧设备

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CN114698046B (zh) * 2021-12-15 2024-05-14 荣耀终端有限公司 呼叫接收方法和通信装置
CN114585077B (zh) * 2022-02-28 2024-02-13 北京小米移动软件有限公司 网络注册方法及装置
CN114928864A (zh) * 2022-04-19 2022-08-19 Oppo广东移动通信有限公司 一种呼叫处理方法、主叫设备和被叫设备
CN114828126B (zh) * 2022-06-23 2022-11-11 荣耀终端有限公司 一种被叫寻呼方法和装置
CN115297448B (zh) * 2022-09-26 2023-01-31 荣耀终端有限公司 网络回落方法、设备及存储介质

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WO2021013353A1 (fr) * 2019-07-25 2021-01-28 Telefonaktiebolaget Lm Ericsson (Publ) Repli pendant un établissement d'appel
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CN101827407A (zh) * 2010-01-28 2010-09-08 北京天碁科技有限公司 小区重选的实现方法和终端
CN106162939B (zh) * 2016-08-24 2020-02-07 青岛海信移动通信技术股份有限公司 一种呼叫连接建立的方法和装置
CN110418384B (zh) * 2018-04-26 2021-02-23 华为技术有限公司 一种电路交换回退方法及装置
CN114223256B (zh) * 2019-10-25 2024-04-23 深圳市欢太科技有限公司 小区重选控制方法、装置、移动终端以及存储介质

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WO2021013353A1 (fr) * 2019-07-25 2021-01-28 Telefonaktiebolaget Lm Ericsson (Publ) Repli pendant un établissement d'appel
CN112399511A (zh) * 2019-08-16 2021-02-23 苹果公司 5g nr语音呼叫eps回退增强
CN111372327A (zh) * 2020-02-18 2020-07-03 华为技术有限公司 基于5g sa网络的呼叫方法、电子设备及系统
CN111698772A (zh) * 2020-05-19 2020-09-22 宇龙计算机通信科技(深圳)有限公司 5g系统的注册方法、装置、存储介质及终端

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CN113242583B (zh) 2023-10-13

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