WO2014063572A1 - Procédé pour la libération d'une liaison radio, dispositif de commande, et terminal - Google Patents

Procédé pour la libération d'une liaison radio, dispositif de commande, et terminal Download PDF

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Publication number
WO2014063572A1
WO2014063572A1 PCT/CN2013/085006 CN2013085006W WO2014063572A1 WO 2014063572 A1 WO2014063572 A1 WO 2014063572A1 CN 2013085006 W CN2013085006 W CN 2013085006W WO 2014063572 A1 WO2014063572 A1 WO 2014063572A1
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WO
WIPO (PCT)
Prior art keywords
timer
terminal
completion message
controller
base station
Prior art date
Application number
PCT/CN2013/085006
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English (en)
Chinese (zh)
Inventor
戚浩峰
屈炳云
Original Assignee
华为技术有限公司
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
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Publication of WO2014063572A1 publication Critical patent/WO2014063572A1/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/38—TPC being performed in particular situations
    • H04W52/50—TPC being performed in particular situations at the moment of starting communication in a multiple access environment
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/30—Connection release
    • H04W76/38—Connection release triggered by timers

Definitions

  • the present invention relates to the field of communications technologies, and in particular, to a method, a controller, and a terminal for decoding and releasing a wireless link. Background technique
  • the terminal Before the terminal communicates, it needs to establish a connection with the network device. After the communication ends, it is necessary to connect to the network device, that is, disconnect the terminal from the network device.
  • the following takes the RRC connection translation in the WCDMA (Wideband Code Division Multiple Access) system as an example to describe the process of translation and connection between the terminal and the network device.
  • WCDMA Wideband Code Division Multiple Access
  • the specific steps of the RRC connection translation may include:
  • the RNC Radio Network Controller
  • the RRC connection release message is used to instruct the terminal to delete the bearer terminal to send to the RNC.
  • Wireless link to data :
  • the terminal sends an RRC connection release completion message to the RNC, and starts the T308 timer and the V308 counter, and the V308 counter initial value is set to 0; the RRC connection release completion message is used to indicate that the RNC deletes the bearer for the NodeB (base station) to the terminal.
  • the terminal sends an RRC connection release completion message to the RNC again, the V308 counter Add 1 and start the timer again, loop the above steps until the value of the V308 counter is greater than N308; if it is greater than N308, The terminal deletes the wireless link used to carry the data sent by the terminal to the RNC;
  • the RNC After receiving the RRC connection release completion message, the RNC deletes the radio link used to carry the data sent by the NodeB to the terminal.
  • the RNC deletes the radio link used to carry the data sent by the NodeB to the terminal, and the RNC instructs the NodeB to delete the radio link used to carry the data sent by the NodeB to the terminal.
  • UTRAN Universal Mobile Telecommunications System
  • TPC Transmission Power Control
  • the inventor has found that at least the following problems exist in the prior art: After receiving the RRC connection release completion message, the RNC deletes the data used to carry the NodeB to the terminal. At this time, the NodeB cannot send a TPC message to the terminal, and the terminal cannot adjust the transmission power according to the TPC message. Therefore, the transmission power of the RRC connection translation completion message may be sharply increased or drastically decreased. The communication between the terminal and the NodeB is greatly affected, which reduces the communication quality. Summary of the invention
  • the embodiment of the present invention provides a method, a controller, and a terminal for decoding a radio link, which solves the problem that the transmission power of the terminal rises or falls sharply during the decoding of the radio link, so that the terminal and the base station The communication between the two is greatly disturbed, which reduces the problem of communication quality.
  • a method for wireless link translation including:
  • the controller receives the connection release completion message, where the connection release completion message is used to instruct the controller to delete the first wireless link, and the first wireless link is used to send the base station controlled by the controller to send to the terminal The data;
  • the first timer is started, and the time duration of the first timer is greater than a preset period, where the preset period is a period in which the base station sends a transmit power control command to the terminal;
  • the first wireless link is deleted according to the connection release completion message.
  • the terminal After receiving the connection release request message sent by the controller, the terminal sends a connection release completion message to the controller, so that the controller starts the first timer after receiving the connection release completion message. After the first timer expires, the first radio link is deleted according to the connection release completion message, the timing of the first timer is greater than a preset period, and the preset period is the controller. And controlling, by the base station, a period of sending a power control command to the terminal, where the first wireless link is used to carry data sent by the base station to the terminal;
  • the connection release completion message is sent to the controller again, and the The timer is added with a preset value, until the count value of the counter is greater than the maximum number of retransmissions, the second radio link is deleted, and the second radio link is used to carry the number sent by the terminal to the base station.
  • a controller including:
  • a receiver configured to receive a connection release completion message, where the connection release completion message is used to instruct the controller to delete a first wireless link, where the first wireless link is used to carry the base station controlled by the controller Data sent to the terminal;
  • the first timer is used for timing, and the timing of the first timer is greater than a preset period, where the preset period is a period in which the base station sends a transmit power control command to the terminal;
  • a processor configured to start the first timer; after the first timer expires, deleting the first wireless link according to the connection release completion message.
  • a terminal including:
  • a receiver configured to receive a connection release request message sent by the controller
  • a processor configured to start a second timer
  • a transmitter configured to send a connection release completion message to the controller after the receiver receives the connection release request message, so that after the controller receives the connection release completion message,
  • the first timer is started, and after the first timer expires, the first radio link is deleted according to the connection release completion message, and the time duration of the first timer is greater than a preset period, the preset The period is a period in which the base station controlled by the controller sends a transmission power control command to the terminal, where the first radio link is used to carry data sent by the base station to the terminal; when the second timer expires And when the count value of the counter is less than or equal to the maximum number of retransmissions of the connection release completion message, the connection release completion message is sent to the controller again, and the timer is added to a preset value until When the count value of the counter is greater than the maximum number of retransmissions, the second radio link is deleted, and the second radio link is used to carry data sent by the terminal to the base station.
  • the controller after receiving the connection release completion message, does not immediately delete the first wireless link, but starts the first
  • the timer deletes the first wireless link after the first timer expires.
  • the timeout period of the first timer is greater than a preset period, where the preset period is a period in which the controller controlled base station sends a power transmission control command to the terminal; thus, before the terminal needs to send the connection release completion message to the controller again, Receiving the transmission power control command sent by the base station, and adjusting the transmission power of the terminal according to the transmission power control command, so that the transmission power of the terminal can be controlled, thereby avoiding a sharp rise or a sharp drop of the transmission power, resulting in a terminal and the base station. Communication is subject to large interference and reduces the quality of communication.
  • FIG. 1 is a flow chart of a method for downloading and releasing a wireless link by using a controller as a main body;
  • FIG. 2 is a flowchart of a method for decoding a radio link with a terminal as a main body according to the embodiment
  • FIG. 3 is a schematic diagram of another method for deciphering a radio link according to an embodiment of the present invention
  • FIG. 4 is a flow chart of a method for providing a wireless link translation in FIG. 3;
  • FIG. 5 is a schematic structural diagram of a controller according to an embodiment of the present invention.
  • FIG. 6 is a schematic structural diagram of a terminal according to an embodiment of the present disclosure. detailed description
  • This embodiment can be applied to various scenarios.
  • the following embodiments are all described by taking a WCDMA system as an example.
  • a WCDMA system can include three parts: CN (core network), UTRAN, and terminal.
  • CN can be used to handle the exchange and routing of calls and data connections with external networks.
  • the UTRAN can be used to handle all wireless access related functions.
  • the terminal can be used to interface with the user.
  • the interface between the CN and the UTRAN is called an Iu interface, and the interface between the UTRAN and the UE is called a Uu interface.
  • the UTRAN is composed of one or more RNS (Radio Network Subsystem).
  • An RNS consists of an RNC (Radio Network Controller) and one or more Node Bs (base stations).
  • the RNC can be connected to another RNC via the Iur interface.
  • the RNC is connected to the base station through an Iub interface.
  • a connection needs to be established between the terminal and the network device (e.g., may include, but is not limited to, CN, RNC, etc.). After the call ends, you need to release the connection. Since this embodiment only relates to the process of translation and connection, and the establishment of the connection is a technique well known to those skilled in the art, only the process of connecting and releasing the connection will be briefly described below.
  • the RRC connection is the radio link between the terminal and the UTRAN and all the radio bearers. After the RRC connection is released, all the terminals are translated on the radio interface. Signaling connection.
  • the RRC connection translation occurs in the CELL_DCH (Cell-Specific Channel) state or the CELL_FACH (Cell Fast Access Channel) state if the current RRC connection is in the CELL-PCH (Cell Paging Channel) state or the URA-PCH (UTRAN Paging Channel) State, UTRAN first initiates paging to migrate the current state of the terminal to the CELL-FACH state, and then performs RRC connection translation.
  • RNC according to different circumstances
  • a method for decoding a wireless link may be a controller, as shown in FIG. 1, may include:
  • the controller receives a connection release completion message, where the connection release completion message is used to instruct the controller to delete the first wireless link, and the first wireless link is used to carry data sent by the base station controlled by the controller to the terminal.
  • the first timer is started, where a timing of the first timer is greater than a preset period, where the preset period is a period in which the base station sends a transmit power control command to the terminal.
  • the controller After the first timer expires, deleting the first wireless link according to the connection release completion message. After adopting the above scheme, the controller does not delete the first immediately after receiving the connection release completion message.
  • the wireless link starts the first timer, and then deletes the first wireless link after the first timer expires.
  • the timeout period of the first timer is greater than a preset period, where the preset period is a period in which the controller controlled base station sends a power transmission control command to the terminal; thus, before the terminal needs to send the connection release completion message to the controller again, Receiving the transmission power control command sent by the base station, and adjusting the transmission power of the terminal according to the transmission power control command, so that the transmission power of the terminal can be controlled, thereby avoiding a sharp rise or a sharp drop of the transmission power, resulting in a terminal and the base station. Communication is subject to large interference and reduces the quality of communication.
  • the embodiment provides a method for decoding a wireless link.
  • the executor of the method may be a terminal. As shown in FIG. 2, the method may include:
  • the terminal After receiving the connection release request message sent by the controller, the terminal sends a connection release completion message to the controller, so that after receiving the connection release completion message, the controller starts the first timer, and is first. After the timer expires, the first radio link is deleted according to the connection release completion message, and the timing of the first timer is greater than a preset period, where the preset period is a period in which the controller controlled base station sends a transmission power control command to the terminal, a wireless link is used to carry data sent by the base station to the terminal;
  • the controller After the foregoing solution is adopted, after receiving the connection release completion message, the controller does not immediately delete the first wireless link, but starts the first timer, and then deletes the first wireless link after the first timer expires.
  • the timing of the first timer is greater than the preset period, and the preset period is sent by the base station controlled by the controller to the terminal.
  • the period of sending the power control command is sent; in this way, before the terminal needs to send the connection release completion message to the controller again, the terminal may also receive the transmission power control command sent by the base station, and adjust the transmission power of the terminal according to the transmission power control command.
  • the transmission power of the terminal can be controlled to avoid a problem that the communication between the terminal and the base station is greatly interfered and the communication quality is lowered due to a sharp rise or a sharp drop in the transmission power.
  • this embodiment provides another method for decoding a wireless link, which is a further extension of the method shown in FIG. 1 and FIG. 2, in order to more easily understand the embodiment, as shown in FIG.
  • An interaction diagram between the terminal, the controller, and the base station is provided.
  • a method for decoding a radio link is also provided.
  • the method may include the following steps:
  • the controller sends a connection release request message to the terminal, where the connection release request message is used to instruct the terminal to delete the second wireless link, and the second wireless link is used to carry data sent by the terminal to the base station controlled by the controller.
  • connection and release request message is not limited, and may be set according to actual needs, and details are not described herein again.
  • the terminal After receiving the connection release request message sent by the controller, the terminal sends a connection release completion message to the controller, and starts a second timer, where the connection release completion message is used to instruct the controller to delete the first wireless link.
  • the first wireless link is used to carry data sent by the base station to the terminal.
  • steps 403 and 405 are simultaneously performed.
  • the controller receives the connection release completion message.
  • the controller is not limited, and may be set according to actual needs.
  • it may be, but not limited to, an RNC, and the like, and details are not described herein again.
  • the content included in the connection and release completion message is not limited, and may be set according to actual needs, and details are not described herein again.
  • the controller starts a first timer, where a timing of the first timer is greater than a preset period, where the preset period is a period in which the base station sends a transmit power control command to the terminal.
  • the base station periodically sends a transmission power control command to the terminal, and the terminal can adjust the transmission power according to the last received transmission power control command. If the transmit power control command received by the terminal is used to indicate that the transmit power is increased, the terminal always adjusts the transmit power incrementally before receiving the next transmit power control command. Other circumstances will not be repeated.
  • the timing of the first timer is set to be greater than the preset period, so that the base station sends a transmission power control command to the terminal before deleting the first radio link (that is, before the first timer expires), thereby enabling the terminal to According to the transmission power control command, the transmission power of the connection release completion message is sent again by the terminal.
  • the method for transmitting a power control command to the terminal by the base station is not limited in this embodiment, and is a technology well known to those skilled in the art, and details are not described herein again.
  • the chronograph duration and the preset period of the first timer are not limited, and may be set according to actual needs, and details are not described herein again.
  • the terminal sends the connection release completion message to the controller again, and adds the preset value to the timer. , the second wireless link is deleted until the counter count value is greater than the maximum number of retransmissions.
  • the terminal may need to send the connection release completion message to the controller at least twice. Due to non-confirmation mode Techniques well known to those skilled in the art will not be described again.
  • the first timer is started (may be but not limited to the T308 timer, which may be referred to as T308 for convenience of description), and the counter (may be It is not limited to the V308 counter.
  • the initial value of V308 can be abbreviated as 0.
  • the terminal sends a connection release completion message to the controller, and adds V308 to a preset value (for example, may be, but not limited to, 1, 2, etc.), after the transmission is completed, V308 is added with a preset value and again Start T308, and cycle the above steps until the count value of V308 is greater than N308, the terminal deletes the second wireless link; if it is greater, the terminal deletes the second wireless link.
  • a preset value for example, may be, but not limited to, 1, 2, etc.
  • the method for deleting the second radio link in the terminal is not limited in this embodiment, and is a technology well known to those skilled in the art, and details are not described herein again.
  • the timing of the first timer may be greater than the maximum number of retransmissions of the connection release completion message multiplied by the timing of the second timer; the maximum number of retransmissions of the connection release completion message multiplied by the timing of the second timer
  • the duration is greater than the period in which the base station sends a transmit power control command to the terminal.
  • the controller deletes the first wireless link after the terminal last sends the connection release completion message. It is ensured that during the sending of the connection release completion message, the terminal can always receive the transmission power control command sent by the base station, and adjust the transmission power of the terminal according to the transmission power control command, so that the transmission power of the terminal transmitting the connection release completion message is normal.
  • the controller receives a connection release completion message sent by the terminal again.
  • the transmission power of the connection release completion message sent by the terminal is adjusted by the terminal according to the transmission power control command received after the first connection release translation completion message is sent.
  • the transmission power does not cause a large interference to the communication between the terminal and the base station.
  • deleting the first wireless link according to the connection release completion message may include: sending a radio link deletion request message to the base station according to the connection release completion message, so that the base station deletes the first radio link, and the radio link deletion request message is used by The base station is instructed to delete the first wireless link.
  • the method for deleting the first radio link by the base station is not limited in this embodiment, and is a technology well known to those skilled in the art, and details are not described herein again.
  • the method for deleting the first radio link by the controller is not limited, and may be set according to actual needs, and details are not described herein again.
  • the controller does not immediately delete the first wireless link after receiving the connection release completion message, but starts the first timer, and then deletes the first wireless link after the first timer expires.
  • the timeout period of the first timer is greater than a preset period, where the preset period is a period in which the controller controlled base station sends a power transmission control command to the terminal; thus, before the terminal needs to send the connection release completion message to the controller again, Receiving the transmission power control command sent by the base station, and adjusting the transmission power of the terminal according to the transmission power control command, so that the transmission power of the terminal can be controlled, thereby avoiding a sharp rise or a sharp drop of the transmission power, resulting in a terminal and the base station. Communication is subject to large interference and reduces the quality of communication.
  • This embodiment provides a controller, as shown in FIG. 5, which may include:
  • the receiver 51 is configured to receive a connection release completion message, where the connection release completion message is used to instruct the controller to delete the first wireless link, and the first wireless link is used to carry data sent by the base station controlled by the controller to the terminal;
  • the first timer 52 is used for timing, and the timing of the first timer is greater than a preset period, and the preset period is The period is a period during which the base station sends a transmission power control command to the terminal;
  • the processor 53 is configured to start the first timer. After the first timer expires, the first wireless link is deleted according to the connection release completion message.
  • the timing of the first timer 52 is greater than the maximum number of retransmissions of the connection release completion message multiplied by the timing of the second timer, whenever the second timer expires, and the counter count value is less than or equal to the connection translation
  • the terminal sends a connection release complete message to the receiver again; the maximum number of retransmissions of the connection release completion message is multiplied by the time duration of the second timer, which is greater than the base station sends a transmission power control command to the terminal. Cycle.
  • the processor 53 is further configured to send a radio link deletion request message to the base station according to the connection release completion message, so that the base station deletes the first radio link, where the radio link deletion request message is used to instruct the base station to delete the first radio chain. road.
  • controller is integrated with the base station; or, the controller is independently set with the base station.
  • the processor does not immediately delete the first wireless link after receiving the connection release completion message, but starts the first timer, and then deletes the first wireless link after the first timer expires.
  • the timeout period of the first timer is greater than a preset period, where the preset period is a period in which the controller controlled base station sends a power transmission control command to the terminal; thus, before the terminal needs to send the connection release completion message to the controller again, Receiving the transmission power control command sent by the base station, and adjusting the transmission power of the terminal according to the transmission power control command, so that the transmission power of the terminal can be controlled, thereby avoiding a sharp rise or a sharp drop of the transmission power, resulting in a terminal and the base station. Communication is subject to large interference and reduces the quality of communication.
  • This embodiment provides a terminal, as shown in FIG. 6, which may include:
  • the receiver 61 is configured to receive a connection release request message sent by the controller.
  • the processor 62 is configured to start a second timer.
  • the transmitter 63 is configured to send a connection release completion message to the controller after the receiver receives the connection release request message, so that the controller starts the first timer after receiving the connection release completion message, and is in the first After the timer expires, the first radio link is deleted according to the connection release completion message, and the timing of the first timer is greater than a preset period, where the preset period is a period in which the base station controlled by the controller sends a transmission power control command to the terminal.
  • the first wireless link is used to carry data sent by the base station to the terminal; when the second timer expires, and the counter value is less than or equal to the maximum number of retransmissions of the connection release completion message, the connection is released to the controller again.
  • the message is completed, and the timer is added to the preset value.
  • the second radio link is deleted, and the second radio link is used to carry data sent by the terminal to the base station.
  • the timing of the first timer is greater than the maximum number of retransmissions times the duration of the second timer, and the maximum number of retransmissions is multiplied by the duration of the second timer, which is greater than the period in which the base station sends the transmission power control command to the terminal.
  • the controller After the above solution is adopted, after receiving the connection release completion message sent by the transmitter, the controller does not immediately delete the first wireless link, but starts the first timer, and then deletes the first wireless when the first timer expires. link.
  • the timing of the first timer is greater than a preset period, where the preset period is a period in which the base station controlled by the controller sends a power control command to the terminal; thus, before the transmitter needs to send the connection release completion message to the controller again,
  • the transmission power control command sent by the base station can be received, and the transmission power of the terminal can be adjusted according to the transmission power control command, so that the transmission power of the terminal can be controlled, and the terminal power and the base station are avoided due to a sharp rise or a sharp drop of the transmission power.
  • the communication is greatly disturbed, and the problem of communication quality is lowered.
  • the technical solution of the present invention which is essential or contributes to the prior art, may be embodied in the form of a software product stored in a readable storage medium, such as a floppy disk of a computer.
  • a hard disk or optical disk or the like includes instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to perform the methods described in various embodiments of the present invention.

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

Abstract

La présente invention se rapporte à un procédé adapté pour exécuter une libération d'une liaison radio. L'invention se rapporte d'autre part à un dispositif de commande et à un terminal. L'invention appartient au domaine technique des communications. La présente invention est apte à résoudre le problème lié au fait que, au cours du processus de libération d'une liaison radio, la puissance de transmission d'un terminal peut augmenter ou diminuer de façon importante. Dans ces conditions, une communication entre le terminal et une station de base peut souffrir d'interférences relativement élevées, ce qui réduit la qualité de la communication. De façon plus spécifique, le procédé selon l'invention peut comprendre les étapes suivantes : un contrôleur reçoit un message d'accomplissement de libération de connexion, le message d'accomplissement de libération de connexion étant utilisé pour commander au contrôleur de supprimer une première liaison radio, et la première liaison radio étant utilisée pour transmettre, à un terminal, les données qui sont envoyées depuis une station de base commandée par le contrôleur ; le contrôleur met en route un premier minuteur, la durée de la minuterie du premier minuteur étant supérieure à une période de temps prédéfinie, et la période de temps prédéfinie étant une période durant laquelle la station de base transmet une commande de régulation de puissance au terminal ; enfin, quand le premier minuteur arrive à son terme, le contrôleur supprime la première liaison radio conformément au message d'accomplissement de libération de connexion. La présente invention peut être mise en œuvre dans un procédé de libération d'une liaison radio.
PCT/CN2013/085006 2012-10-24 2013-10-11 Procédé pour la libération d'une liaison radio, dispositif de commande, et terminal WO2014063572A1 (fr)

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CN201210410119.7A CN103781193A (zh) 2012-10-24 2012-10-24 无线链路释放的方法、控制器和终端
CN201210410119.7 2012-10-24

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WO2021022515A1 (fr) * 2019-08-07 2021-02-11 华为技术有限公司 Procédé, appareil et système de communication

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CN110351788A (zh) * 2018-04-03 2019-10-18 维沃移动通信有限公司 资源释放方法、终端设备和网络侧设备
CN116709587A (zh) * 2019-07-31 2023-09-05 华为技术有限公司 用于传输数据的方法、终端设备和网络设备
CN113645236B (zh) * 2021-08-10 2022-11-29 北京天融信网络安全技术有限公司 一种报文处理方法、装置及存储介质

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WO2012138283A2 (fr) * 2011-04-07 2012-10-11 Telefonaktiebolaget L M Ericsson (Publ) Procédés et dispositifs pour gérer la mobilité entre des technologies d'accès radio (rat)

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CN101902829A (zh) * 2010-06-22 2010-12-01 中兴通讯股份有限公司 一种用户设备及连接释放异常的处理方法
WO2012138283A2 (fr) * 2011-04-07 2012-10-11 Telefonaktiebolaget L M Ericsson (Publ) Procédés et dispositifs pour gérer la mobilité entre des technologies d'accès radio (rat)

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