CN112822789A - Redirection method of inactive state terminal, electronic equipment and computer readable medium - Google Patents

Redirection method of inactive state terminal, electronic equipment and computer readable medium Download PDF

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Publication number
CN112822789A
CN112822789A CN201911127753.8A CN201911127753A CN112822789A CN 112822789 A CN112822789 A CN 112822789A CN 201911127753 A CN201911127753 A CN 201911127753A CN 112822789 A CN112822789 A CN 112822789A
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China
Prior art keywords
base station
terminal
message
resource control
radio resource
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CN201911127753.8A
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Chinese (zh)
Inventor
何金招
胡敏
孙珊珊
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ZTE Corp
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ZTE Corp
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Priority to CN201911127753.8A priority Critical patent/CN112822789A/en
Priority to PCT/CN2020/118935 priority patent/WO2021098389A1/en
Publication of CN112822789A publication Critical patent/CN112822789A/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/20—Manipulation of established connections
    • H04W76/27—Transitions between radio resource control [RRC] states
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/30—Connection release
    • H04W76/34—Selective release of ongoing connections

Abstract

The present disclosure provides a redirection method for an inactive terminal, the method includes: responding to an initialized uplink transfer message of a scattered base station to determine a redirection target, and sending a downlink wireless resource control transfer message to the scattered base station so that a terminal can complete redirection according to the redirection target; the distributed base station sends the initialization uplink transfer message based on a radio resource control recovery request message of a terminal, the downlink radio resource control transfer message carries a redirection target, and the terminal is in an inactive state. The method can reduce the interactive message flow between the terminal and the base station, thereby shortening the calling time delay, simultaneously reducing the call drop rate and further improving the voice user experience. The disclosure also provides a redirection device of the inactive state terminal, an electronic device and a computer readable medium.

Description

Redirection method of inactive state terminal, electronic equipment and computer readable medium
Technical Field
The embodiment of the disclosure relates to the technical field of mobile communication, in particular to a redirection method for an inactive terminal.
Background
When the terminal in the Inactive state (Inactive) performs the called voice service, the interaction flow between the terminal and the base station is as follows: sending a Radio Resource Control (RRC) Resume Request message to a target base station (gNB), sending a RETRIEVE terminal CONTEXT Request (RETRIEVE UE CONTEXT REQUEST) message to an anchor base station (oldgNB), returning a RETRIEVE terminal CONTEXT RESPONSE (RETRIEVE UE CONTEXT RESPONSE) message to the target base station by the anchor base station, sending a radio resource control Resume (RRC) message to a terminal by the target base station after receiving the CONTEXT of the terminal, sending a radio resource control Resume (RRC) message to the target base station by the terminal, and then sending a radio resource control Release (RRC Release) message to the terminal by the target base station to indicate the terminal to redirect.
Due to the fact that interaction flows between the terminal in the non-activated state and the base station are more during redirection, time delay is long, and if signals of the terminal are not ideal, call drop is easy to occur, and user experience is affected.
Disclosure of Invention
The embodiment of the disclosure provides a redirection method for a terminal in an inactive state, an electronic device and a computer readable medium, so as to solve the problems of time delay and easy call drop caused by a complex interaction flow between the terminal in the inactive state and a base station when a voice service is established by the terminal in the inactive state in the prior art.
In a first aspect, an embodiment of the present disclosure provides a redirection method for an inactive terminal, including:
responding to an initialized uplink transfer message of a scattered base station to determine a redirection target, and sending a downlink wireless resource control transfer message to the scattered base station so that a terminal can complete redirection according to the redirection target; the distributed base station sends the initialization uplink transfer message based on a radio resource control recovery request message of a terminal, the downlink radio resource control transfer message carries a redirection target, and the terminal is in an inactive state.
In some embodiments, the terminal is a called terminal, and the method includes:
receiving an initialization uplink transfer message of the scattered base station; the initialization uplink transfer message carries the radio resource control recovery request message, and the scattered base station responds to the radio resource control recovery request message of the terminal to send the initialization uplink transfer message;
responding the initialized uplink transfer message to carry out blind redirection judgment and determining the redirection target of the called terminal;
and sending a downlink radio resource control transfer message to the dispersed base station, wherein the downlink radio resource control transfer message carries the radio resource control release message so that the terminal can be redirected according to the redirection target.
In some embodiments, before receiving the initialization uplink transfer message of the distributed base station, the method further includes:
receiving a voice establishment request message, wherein the voice establishment request message comprises a voice identifier;
and sending a paging message to the decentralized base station based on the voice establishment request message, so that the decentralized base station sends the initialization uplink transfer message after receiving a radio resource control recovery request sent by the called terminal responding to the paging message.
In some embodiments, after receiving the voice setup request message, the method further includes:
and sending a voice establishment response message to an authentication management entity based on the voice establishment request message.
In some embodiments, the terminal is a called terminal, and the method includes:
receiving an initialization uplink transfer message of the scattered base station; the initialization uplink transfer message carries the radio resource control recovery request message, and the scattered base station responds to the radio resource control recovery request message of the terminal to send the initialization uplink transfer message;
sending a request message for retrieving the context of the called terminal to an original base station, wherein the original base station is the base station which serves the called terminal at last;
receiving a context response message returned by the original base station for retrieving the called terminal;
carrying out redirection judgment based on the called terminal context, and determining a redirection target of the called terminal;
and sending a downlink radio resource control transfer message to the dispersed base station, wherein the downlink radio resource control transfer message carries the radio resource control release message so that the terminal can be redirected according to the redirection target.
In some embodiments, before receiving the initialization uplink transfer message of the distributed base station, the method further includes:
receiving a wireless access network paging message sent by the original base station;
and responding the paging message of the wireless access network to send a paging message to the decentralized base station, so that the decentralized base station sends the initialization uplink transfer message after receiving a wireless resource control recovery request sent by the called terminal responding to the paging message.
In some embodiments, the terminal is a calling terminal, and the method includes:
receiving an initialization uplink transfer message of the scattered base station; the initialization uplink transfer message carries the radio resource control recovery request message, and the scattered base station responds to the radio resource control recovery request message of the terminal to send the initialization uplink transfer message;
responding the initialized uplink transfer message to carry out redirection judgment and determining the redirection target of the calling terminal;
and sending a downlink radio resource control transfer message to the dispersed base station, wherein the downlink radio resource control transfer message carries the radio resource control release message so that the terminal can be redirected according to the redirection target.
In some embodiments, the redirection target comprises a redirected network and a reselected frequency point.
In a second aspect, an embodiment of the present disclosure provides a redirection method for an inactive terminal, including:
responding to a radio resource control recovery request message of a terminal to send an initialization uplink transfer message for a centralized base station to determine a redirection target, forwarding a downlink radio resource control transfer message to the terminal, and enabling the terminal to redirect according to the redirection target; the downlink radio resource control transfer message carries a redirection target, and the terminal is in an inactive state.
In some embodiments, the method comprises:
receiving a radio resource control recovery request message of the terminal;
sending the initialization uplink transfer message to the centralized base station; the initialization uplink transfer message carries the radio resource control recovery request message for the centralized base station to determine the redirection target;
receiving a downlink radio resource control transfer message returned by the centralized base station, wherein the downlink radio resource control transfer message carries the radio resource control release message;
and forwarding the radio resource control release message to the terminal, wherein the radio resource control release message carries the redirection target.
In some embodiments, the redirection target comprises a redirected network and a reselected frequency point.
In a third aspect, an embodiment of the present disclosure provides a redirection method for an inactive terminal, including:
sending a radio resource control recovery request message to a base station, and responding to a radio resource control release message returned by the base station to perform redirection, wherein the radio resource control recovery request message carries a voice call indication, the radio resource control release message carries the redirection target, and a terminal executing the redirection is in an inactive state.
In some embodiments, the terminal is a called terminal, and the called terminal sends a radio resource control recovery request message to the base station after receiving a radio access network paging request sent by the base station.
In a fourth aspect, an embodiment of the present disclosure provides a redirection apparatus for an inactive terminal, including:
a receiving module, configured to receive an initialized uplink transfer message of a decentralized base station, where the decentralized base station sends the initialized uplink transfer message based on a radio resource control recovery request message of a terminal, and the terminal is in an inactive state, where the radio resource control recovery request message carries a voice call indication;
the redirection module is used for judging a redirection target of the terminal;
and the sending module is used for sending the redirection target to the decentralized base station so that the terminal can redirect according to the redirection target.
In a fifth aspect, an embodiment of the present disclosure provides an electronic device, including:
one or more processors;
a storage device having one or more programs stored thereon, which when executed by the one or more processors, cause the one or more processors to implement the method for redirection of a terminal in an inactive state according to the present disclosure.
In a sixth aspect, the disclosed embodiments provide a computer readable medium, on which a computer program is stored, which when executed by a processor, implements a method for redirection of a terminal in an inactive state according to the present disclosure.
The redirection method of the inactive state terminal provided by the embodiment of the present disclosure responds to the radio resource control recovery request message of the terminal to obtain the redirection target, and sends the downlink radio resource control transfer message to the decentralized base station, so that the terminal completes redirection according to the redirection target, that is, sends the radio resource control release message to the terminal, so as to provide redirection for the terminal, thereby reducing the interactive message flow between the terminal and the base station, thereby shortening the call delay, and simultaneously reducing the call drop rate, and further improving the voice user experience.
Drawings
The accompanying drawings are included to provide a further understanding of the embodiments of the disclosure and are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the description serve to explain the principles of the disclosure and not to limit the disclosure.
The above and other features and advantages will become more apparent to those skilled in the art by describing in detail exemplary embodiments thereof with reference to the attached drawings, in which:
fig. 1 is a flowchart of a redirection method for an inactive terminal according to an embodiment of the present disclosure;
fig. 2 is a flowchart of another redirection method for an inactive terminal according to an embodiment of the present disclosure;
fig. 3 is a flowchart of another redirection method for an inactive terminal according to an embodiment of the present disclosure;
fig. 4 is a flowchart of another redirection method for an inactive terminal according to an embodiment of the present disclosure;
fig. 5 is a flowchart of another redirection method for an inactive terminal according to an embodiment of the present disclosure;
fig. 6 is a flowchart of another redirection method for an inactive terminal according to an embodiment of the present disclosure;
fig. 7 is a flowchart of another redirection method (in a called terminal base station) for an inactive terminal according to an embodiment of the present disclosure;
fig. 8 is a flowchart of another redirection method (between called terminal stations) for a terminal in an inactive state according to an embodiment of the present disclosure;
fig. 9 is a flowchart of another redirection method (in a calling terminal base station) for an inactive terminal according to an embodiment of the present disclosure;
fig. 10 is an exemplary block diagram of another redirection apparatus for a terminal in an inactive state according to an embodiment of the present disclosure.
Detailed Description
In order to make those skilled in the art better understand the technical solution of the present invention, the redirection method, the electronic device, and the computer-readable medium of the inactive terminal provided by the present invention are described in detail below with reference to the accompanying drawings.
Example embodiments will be described more fully hereinafter with reference to the accompanying drawings, but which may be embodied in different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.
Embodiments described herein may be described with reference to plan and/or cross-sectional views in light of idealized schematic illustrations of the disclosure. Accordingly, the example illustrations can be modified in accordance with manufacturing techniques and/or tolerances. Accordingly, the embodiments are not limited to the embodiments shown in the drawings, but include modifications of configurations formed based on a manufacturing process. Thus, the regions illustrated in the figures have schematic properties, and the shapes of the regions shown in the figures illustrate specific shapes of regions of elements, but are not intended to be limiting.
Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and the present disclosure, and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
The method and the device aim at the problems that when the 5G non-activated state terminal is restored to be connected with the base station, the interaction flow of the terminal and the base station is more, the time delay is longer, the call drop is easily caused, and the user experience is influenced.
The base station of the present disclosure includes a centralized base station and a decentralized base station, and one centralized base station may face one or more decentralized base stations. The decentralized base stations face the terminals, and the centralized base stations face the core network. The centralized base station can perform information interaction with the authentication management entity in the core network and can also perform information interaction with other base stations. In some embodiments, the centralized base station and the decentralized base station are independent base stations. In other embodiments, the centralized base station and the distributed base station belong to two parts of one base station.
In a first aspect, an embodiment of the present disclosure provides a redirection method for an inactive terminal, where the method is applied to a centralized base station on a network side. The redirection method comprises the following steps: responding to an initialized uplink transfer message of a scattered base station to determine a redirection target, and sending a downlink wireless resource control transfer message to the scattered base station so that a terminal can complete redirection according to the redirection target; the distributed base station sends the initialization uplink transfer message based on a radio resource control recovery request message of a terminal, the downlink radio resource control transfer message carries a redirection target, and the terminal is in an inactive state.
Fig. 1 is a flowchart of a redirection method for an inactive terminal according to an embodiment of the present disclosure.
Referring to fig. 1, the redirection method for an inactive terminal is used for a centralized base station on a network side, and specifically includes:
101, receiving an initialization uplink transfer message of a distributed base station.
It should be noted that the initialization uplink transfer message is sent by the distributed base station based on a radio resource control recovery request message sent by the called terminal, and the initialization uplink transfer message carries the content of the radio resource control recovery request message, where the radio resource control recovery request message carries a voice call instruction, that is, the initialization uplink transfer message carries a voice call instruction.
And 102, judging the fallback of the evolved packet system, and determining a redirection target.
After receiving the initialized uplink transfer message, the centralized base station performs Evolved Packet System Fall Back (EPSFB for short) decision according to the voice call reason carried in the radio access control recovery request message, performs blind redirection, and determines a redirection target. The redirection target may be a 3g (third generation) network, a 4g (fourth generation) network, or a 5g (Fifth generation) network.
103, sending a downlink radio resource control transfer message to the decentralized base station.
The downlink RRC transfer message carries the contents of an RRC Release (RRC Release) message, and the contents of the RRC Release message include a redirection target.
In some embodiments, the redirection target comprises a redirected network and a reselected frequency point, namely a voice redirection network and a voice redirection frequency point.
In the redirection method for an inactive terminal provided in this embodiment, a radio resource control recovery request message of a terminal is responded to obtain a redirection target, and a downlink radio resource control transfer message is sent to the distributed base station, so that the terminal completes redirection according to the redirection target, that is, a radio resource control release message is sent to the terminal, so that the terminal performs redirection, and an interactive message flow between the terminal and the base station is reduced, thereby shortening call delay, and reducing a call drop rate, and further improving voice user experience.
Referring to fig. 2, the redirection method of the inactive state terminal is used for a centralized base station on the network side, when a calling terminal calls a called terminal, the called terminal interacts with a corresponding base station, and the interaction process is performed in-station, that is, the called terminal is transferred from an inactive state to a connected state in the station. The redirection method of the terminal in the non-activated state comprises the following steps:
and 201, receiving an initialization uplink transfer message of the distributed base station.
In some embodiments, after receiving a radio resource recovery request message from a terminal, a decentralized base station sends an initialization uplink transfer message to a centralized base station, where the initialization uplink transfer message carries the radio resource control recovery request message, where the radio resource recovery request message carries a voice call indication.
And 202, responding to the initialized uplink transfer message to carry out blind redirection judgment, and determining the redirection target of the called terminal.
And after receiving the initialization uplink transfer message sent by the decentralized base station, the centralized base station performs blind redirection judgment to determine the redirection target of the called terminal, such as determining a voice frequency point.
203, sending a downlink radio resource control transfer message to the decentralized base station.
In some embodiments, the downlink rrc transfer message carries the rrc release message, and the rrc release message carries the redirection target.
The centralized base station sends a downlink wireless resource control transfer message to the decentralized base station, the decentralized base station sends a wireless resource control release message to the terminal after receiving the downlink wireless resource control transfer message, and the terminal executes a redirection process according to the redirection target after receiving the wireless resource control release message and preferentially accesses the voice frequency point indicated in the redirection target.
In some embodiments, when the calling terminal calls the called terminal, an Authentication Management Function (AMF) entity corresponding to the calling terminal performs information interaction with the centralized base station, that is, before the centralized base station receives an initialization uplink transfer message of the distributed base station, the method further includes:
the centralized base station receives a voice setup request message of the AMF entity. The voice establishment REQUEST message includes a voice identifier, that is, a voice identifier with a qos flow identifier equal to 1, and may further include a protocol data unit SESSION RESOURCE modification REQUEST (PDU SESSION RESOURCE MODIFY REQUEST) message and a protocol data unit SESSION RESOURCE establishment (PDU SESSION RESOURCE REQUEST) REQUEST message.
It should be noted that the centralized base station mentioned in this embodiment is the centralized base station that serves the called terminal last, and when not explicitly stated, the centralized base station refers to the centralized base station that serves the called terminal last. The centralized base station receives the voice establishment request message of the AMF entity and sends a paging message to the scattered base stations.
And sending a paging message to the decentralized base station based on the voice establishment request message, so that the decentralized base station sends the initialization uplink transfer message after receiving a radio resource control recovery request sent by the called terminal responding to the paging message.
It should be noted that, the centralized base station sends a radio access network paging message to all the distributed base stations in the radio access network notification area. The centralized base station sends a paging message to the decentralized base stations through the XN interface, the decentralized base stations forward the paging message to the called terminal, the called terminal sends a wireless resource control recovery request to the decentralized base stations after receiving the paging message, and the decentralized base stations send the initialized uplink transfer message to the centralized base stations after receiving the wireless resource control recovery request.
In some embodiments, the centralized base station further sends a voice setup response message to the AMF entity after receiving the voice setup request message of the AMF entity. The voice establishment response message includes a protocol data unit session resource modification request message and a protocol data unit session resource establishment request message, and carries a voice establishment failure message, wherein the failure is caused by an IP Multimedia System (IMS) voice Evolution Packet System (EPS) fallback or a multiple Radio Access (RAT) fallback trigger.
In some embodiments, the redirection method of the terminal in the inactive state is used for a centralized base station on a network side, when a calling terminal calls a called terminal, the called terminal interacts with a corresponding base station, and the interaction flow is an interaction flow in a station, that is, the terminal is moved from the inactive state to a connected state in the station.
Referring to fig. 3, the redirection method of the inactive state terminal is used for a centralized base station on the network side, when a calling terminal calls a called terminal, the called terminal interacts with a corresponding base station, and the interaction process is performed between the base stations, that is, the called terminal is transferred from the inactive state to the connected state between the base stations. The redirection method of the terminal in the non-activated state comprises the following steps:
301, receiving an initialization uplink transfer message of the decentralized base station.
Wherein the initialization uplink transfer message carries the rrc resume request message, and the femtocell responds to the rrc resume request message of the terminal to send the initialization uplink transfer message.
In some embodiments, after receiving a radio resource recovery request message from a terminal, a decentralized base station sends an initialization uplink transfer message to a centralized base station, where the initialization uplink transfer message carries the radio resource control recovery request message, where the radio resource recovery request message carries a voice call indication.
And 302, sending a request message for retrieving the called terminal context to the original base station.
Wherein the original base station is the last (most recent) base station serving the called terminal.
After receiving the initial-UL RRC Message Transfer Message sent by the distributed base station, the centralized base station sends a REQUEST for retrieving the CONTEXT of the called terminal (RETRIEVE UE CONTEXT REQUEST) Message to the original base station (oldGNB).
303, receiving the context response message of retrieving the called terminal returned by the original base station.
And after receiving the request message for retrieving the called terminal CONTEXT, the original base station returns a RESPONSE (RETRIEVE UE CONTEXT RESPONSE) message for retrieving the called terminal CONTEXT to the centralized base station.
And 304, carrying out redirection judgment based on the called terminal context, and determining the redirection target of the called terminal.
After receiving the context response message of the called terminal returned by the original base station, the centralized base station makes redirection judgment and determines the redirection target of the called terminal, such as determining a voice frequency point.
305, sending a downlink radio resource control transfer message to the distributed base station.
Wherein, the downlink radio resource control transfer message carries the radio resource control release message, so that the terminal can redirect according to the redirection target.
The centralized base station sends a downlink wireless resource control transfer message to the decentralized base station, the decentralized base station sends a wireless resource control release message to the terminal after receiving the downlink wireless resource control transfer message, and the terminal executes a redirection process according to the redirection target after receiving the wireless resource control release message and preferentially accesses the voice frequency point indicated in the redirection target.
In some embodiments, when the calling terminal calls the called terminal, the AMF entity corresponding to the calling terminal, the original base station, and the centralized base station perform information interaction, that is, before the centralized base station receives the initialization uplink transfer message of the distributed base station, the method further includes:
and receiving a wireless access network paging message sent by the original base station.
It should be noted that, the centralized base station sends a radio access network paging message to all the distributed base stations in the radio access network notification area. The centralized base station sends a paging message to the decentralized base stations through the XN interface, the decentralized base stations forward the paging message to the called terminal, the called terminal sends a wireless resource control recovery request to the decentralized base stations after receiving the paging message, and the decentralized base stations send the initialized uplink transfer message to the centralized base stations after receiving the wireless resource control recovery request.
In some embodiments, the radio access network paging message sent by the original base station is interacted with the AMF before, specifically, the AMF sends a voice establishment request message to the original base station, where the voice establishment request message includes a voice identifier, that is, a voice identifier with a qos traffic identifier equal to 1, and may further include a pdu session resource modification request message and a pdu session resource establishment request message.
In some embodiments, when the original base station sends the radio access network paging message to the centralized base station, the original base station also sends a voice establishment response message to the AMF, where the voice establishment response message includes a pdu session resource modification request message and a pdu session resource establishment request message, and carries a voice establishment failure message, where the failure reason is an IP Multimedia System (IMS) voice Evolution Packet System (EPS) fallback or a multiple Radio Access (RAT) fallback trigger.
And responding the paging message of the wireless access network to send a paging message to the decentralized base station, so that the decentralized base station sends the initialization uplink transfer message after receiving a wireless resource control recovery request sent by the called terminal responding to the paging message.
It should be noted that, the centralized base station sends a radio access network paging message to all the distributed base stations in the radio access network notification area. The centralized base station sends a paging message to the decentralized base stations through the XN interface, the decentralized base stations forward the paging message to the called terminal, the called terminal sends a wireless resource control recovery request to the decentralized base stations after receiving the paging message, and the decentralized base stations send the initialized uplink transfer message to the centralized base stations after receiving the wireless resource control recovery request.
Referring to fig. 4, the redirection method of the inactive state terminal is used for a centralized base station on a network side, the inactive state terminal is a calling terminal, the inactive state calling terminal sends a voice establishment request message to the base station, and the inactive state is transferred to a connection state before voice communication is established. The redirection method of the terminal in the non-activated state comprises the following steps:
401, receiving an initialization uplink transfer message of the distributed base station.
The initialization uplink transfer message carries the radio resource control recovery request message, and the scattered base station responds to the radio resource control recovery request message of the terminal to send the initialization uplink transfer message.
In some embodiments, the initiating uplink transfer message is sent by the distributed base station based on a radio resource control recovery request message sent by the called terminal, and the content of the radio resource control recovery request message is carried in the initiating uplink transfer message, and the radio resource control recovery request message carries a voice call indication, that is, the initiating uplink transfer message carries a voice call indication.
It should be noted that, when the terminal is a called terminal, the called terminal initiates a radio resource control recovery request based on the paging request of the distributed base station. When the terminal is a calling terminal, the calling terminal actively initiates a radio resource control recovery request based on the voice call of the user.
402, responding to the initialized uplink transfer message to make redirection judgment, and determining the redirection target of the calling terminal.
After receiving the initialization uplink transfer message, the centralized base station performs Evolved Packet System Fall Back (EPSFB for short) decision according to the voice call reason carried in the radio access control recovery request message, and determines a redirection target. The redirection target may be a 3g (third generation) network, a 4g (fourth generation) network, or a 5g (Fifth generation) network.
It should be noted that, when the terminal is a called terminal, the centralized base station performs blind redirection after receiving the initialization uplink transfer message. When the terminal is a calling terminal, the centralized base station receives the initialized uplink transfer message and then carries out redirection instead of blind redirection.
And 403, sending a downlink radio resource control transfer message to the distributed base station.
The downlink radio resource control transfer message carries the radio resource control release message, so that the terminal can redirect according to the redirection target.
The downlink RRC transfer message carries the contents of an RRC Release (RRC Release) message, and the contents of the RRC Release message include a redirection target.
In some embodiments, the redirection target comprises a redirected network and a reselected frequency point, namely a voice redirection network and a voice redirection frequency point.
In a second aspect, the present disclosure provides a redirection method for an inactive terminal, where the redirection method is applied to a distributed base station on a network side. The redirection method comprises the following steps: responding to a radio resource control recovery request message of a terminal to send an initialization uplink transfer message for a centralized base station to determine a redirection target, forwarding a downlink radio resource control transfer message to the terminal, and enabling the terminal to redirect according to the redirection target; the downlink radio resource control transfer message carries a redirection target, and the terminal is in an inactive state.
Fig. 5 is a flowchart of a redirection method of an inactive terminal according to the disclosed embodiment.
Referring to fig. 5, the redirection method for the terminal in the inactive state is used for a decentralized base station, and specifically includes:
501, receiving a radio resource control recovery request message of a terminal.
When the terminal is a calling terminal, the calling terminal responds to the call request of the user and sends a wireless resource control recovery request message to the decentralized base station.
When the terminal is a called terminal, the called terminal sends a wireless resource control recovery request message to the decentralized base station after receiving the paging message of the decentralized base station.
In some embodiments, the decentralized base station forwards the paging request to the terminal based on the paging request of the centralized base station, and the centralized base station obtains the paging message in two ways. In the first mode, when a calling terminal initiates a voice request to a called terminal, an AMF entity corresponding to the calling terminal sends a voice establishment request, where the voice establishment request message includes a voice identifier, that is, a voice identifier whose qos traffic identifier is equal to 1, and may further include a protocol data unit session resource modification request message and a protocol data unit session resource establishment request message. After receiving the voice establishment request, the centralized base station forwards the voice establishment request to the decentralized base station through the XN interface, and the decentralized base station forwards the paging message to the called terminal. It should be noted that, the centralized base station sends a radio access network paging message to all the distributed base stations in the radio access network notification area.
In the second mode, when a calling terminal initiates a voice request to a called terminal, an AMF entity sends a voice establishment request to an original base station, the original base station sends a wireless access network paging request to a centralized base station according to the voice establishment request, and the centralized base station forwards the paging request to a decentralized base station.
It should be noted that the voice establishment request message includes a voice identifier, that is, a voice identifier with a qos traffic identifier equal to 1, and may further include a protocol data unit session resource modification request message and a protocol data unit session resource establishment request message.
502, sending the initialization uplink transfer message to the centralized base station.
Wherein the initialization uplink transfer message carries the radio resource control recovery request message, so that the centralized base station determines the redirection target.
In some embodiments, after receiving a radio resource recovery request message from a terminal, a decentralized base station sends an initialization uplink transfer message to a centralized base station, where the initialization uplink transfer message carries the radio resource control recovery request message, where the radio resource recovery request message carries a voice call indication.
After receiving the initialized uplink transfer message, the centralized base station makes a fallback decision of the evolved packet system according to the voice call reason carried in the wireless access control recovery request message, and determines a redirection target. Wherein, the redirection target can be a 3G network, a 4G network or a 5G network.
It should be noted that, when the terminal is a called terminal, the centralized base station performs blind redirection after receiving the initialization uplink transfer message. When the terminal is a calling terminal, the centralized base station receives the initialized uplink transfer message and then carries out redirection instead of blind redirection.
503, receiving the downlink radio resource control transfer message returned by the centralized base station.
Wherein the downlink radio resource control transfer message carries the radio resource control release message. The downlink radio resource control transfer message carries the content of the radio resource control release message, and the content of the radio resource control release message comprises a redirection target.
The redirection target comprises a redirection network and a reselection frequency point, namely a voice redirection network and a voice redirection frequency point.
And 504, forwarding the radio resource control release message to the terminal.
And after receiving a downlink radio resource control transfer message sent by the centralized base station, the decentralized base station forwards the radio resource control release message to the terminal, wherein the radio resource control release message carries the redirection target.
Fig. 6 is a flowchart of a redirection method for an inactive terminal according to an embodiment of the present disclosure, where the redirection method is applied to a terminal.
601, sending a radio resource control recovery request message to the base station.
When the terminal is an active calling terminal, the terminal responds to a calling request of a user and sends a wireless resource control recovery request message to the scattered base station, wherein the wireless resource control recovery request message carries a voice calling instruction.
And when the terminal is a called calling terminal, the called terminal sends a wireless resource control recovery request message to the base station after receiving the wireless access network paging request sent by the base station.
The manner of sending the radio access network paging request by the base station is the same as that in the foregoing embodiment, and is not described herein again.
And 602, redirecting in response to the radio resource control release message returned by the base station.
And after receiving the radio resource control release message returned by the scattered base station, the terminal carries the redirection target according to the radio resource control release message.
In some embodiments, after receiving the rrc restoration request message, the distributed base station sends an initialization uplink transfer message to the centralized base station, where the initialization uplink transfer message carries the rrc restoration request message, where the rrc restoration request message carries the voice call indication. And after receiving the initialization uplink transfer message sent by the decentralized base station, the centralized base station carries out redirection judgment and determines the redirection target of the called terminal, such as determining a voice frequency point. The centralized base station sends a downlink wireless resource control transfer message to the decentralized base station, the decentralized base station sends a wireless resource control release message to the terminal after receiving the downlink wireless resource control transfer message, and the terminal executes a redirection process according to the redirection target after receiving the wireless resource control release message and preferentially accesses the voice frequency point indicated in the redirection target.
The redirection method of the present disclosure is described in more detail below with reference to the centralized base station, the distributed base stations, and the terminal.
Referring to fig. 7, the terminal in the redirection process is a called terminal, and the called terminal is in an inactive state, and the called terminal realizes the transition from the inactive state to the connected state in the station.
701, voice setup request.
When a calling terminal initiates a voice call request to a called terminal, the AMF sends a voice establishment request to the centralized base station. The voice establishment REQUEST includes a voice identifier, i.e., a voice identifier with a qos flow identifier equal to 1, and may further include a protocol data unit SESSION RESOURCE modification REQUEST (PDU SESSION RESOURCE modification REQUEST) message and a protocol data unit SESSION RESOURCE establishment (PDU SESSION RESOURCE REQUEST) REQUEST message.
And 702, a voice setup response.
And after receiving the voice establishment request, the centralized base station sends a voice establishment response to the AMF entity. The base station here is the centralized base station that last serves the called terminal. The voice establishment response message includes a protocol data unit session resource modification request message and a protocol data unit session resource establishment request message, and carries a voice establishment failure message, wherein the failure is caused by an IP Multimedia System (IMS) voice Evolution Packet System (EPS) fallback or a multiple Radio Access (RAT) fallback trigger.
703, sending a radio access network paging message.
After receiving the voice establishment request, the centralized base station sends a wireless access network paging message to the decentralized base stations through the XN interface.
It is noted that the centralized base station sends a radio access network paging message to all decentralized base stations within the radio access network notification area.
The radio access network paging message is forwarded 704.
The decentralized base station forwards the paging message of the wireless access network to the called terminal.
705, a radio resource control resume request is initiated.
The called terminal sends a wireless resource control recovery request to the decentralized base station, and the wireless resource control recovery request carries a voice call indication.
706, sending an initialization uplink radio resource control transfer message.
The distributed base station sends an initialization uplink radio resource control transfer message to the centralized base station, wherein the initialization uplink radio resource control transfer message contains the content of the radio resource control recovery request message.
708, blind redirection decision.
Responding the initialized uplink transfer message to carry out blind redirection judgment of fallback of an evolution grouping system, and determining the redirection target of the called terminal.
709, sending the downlink rrc transfer message.
After obtaining the redirection target, the centralized base station sends a downlink radio resource control transfer message to the decentralized base station, wherein the downlink radio resource control transfer message carries the content of a radio resource control release message, and the radio resource control release message comprises the redirection target, such as a 4G network.
And 710, sending a radio resource control release message.
And after receiving the downlink radio resource control transfer message of the centralized base station, the decentralized base station sends a radio resource control release message to the terminal, wherein the radio resource control release message comprises a redirection target.
And 711, redirecting to the target frequency point.
When receiving the radio resource control release message sent by the decentralized base station, the terminal redirects to the 4G network, establishes connection with the base station eNB of the 4G network, and carries out voice bearing in the 4G network system to establish voice service, namely, normal voice service can be carried out.
Referring to fig. 8, the terminal in the redirection procedure is a called terminal, and the called terminal is in an inactive state, and the called terminal realizes transition from the inactive state to a connected state between the base station and the base station.
801, voice setup request.
When a calling terminal initiates a voice call request to a called terminal, AMF sends a voice establishment request to an integrated original base station (oldGNB). The voice establishment REQUEST includes a voice identifier, i.e., a voice identifier with a qos flow identifier equal to 1, and may further include a protocol data unit SESSION RESOURCE modification REQUEST (PDU SESSION RESOURCE modification REQUEST) message and a protocol data unit SESSION RESOURCE establishment (PDU SESSION RESOURCE REQUEST) REQUEST message.
802, voice setup response.
And after receiving the voice establishment request, the original base station sends a voice establishment response to the AMF entity. The original base station here is the base station that last served the called terminal. The voice establishment response message includes a protocol data unit session resource modification request message and a protocol data unit session resource establishment request message, and carries a voice establishment failure message, wherein the failure is caused by an IP Multimedia System (IMS) voice Evolution Packet System (EPS) fallback or a multiple Radio Access (RAT) fallback trigger.
803, a radio access network paging message is sent.
After receiving the voice establishment request, the original base station sends a wireless access network paging message to each centralized base station in the wireless access network notification area through an XN interface.
And 804, forwarding the wireless access network paging message.
After the centralized base station sends the paging message of the wireless access network, the centralized base station forwards the paging message of the wireless access network to the scattered base stations.
A radio access network paging message is sent 805.
And after receiving the wireless access network paging message, the decentralized base station sends the wireless access network paging message to the terminal.
806, initiate a radio resource control resume request.
The called terminal sends a wireless resource control recovery request to the decentralized base station, and the wireless resource control recovery request carries a voice call indication.
807, an initializing uplink radio resource control transfer message is sent.
The distributed base station sends an initialization uplink radio resource control transfer message to the centralized base station, wherein the initialization uplink radio resource control transfer message contains the content of the radio resource control recovery request message.
808, sending a retrieve terminal context request.
After receiving the initial-UL RRC Message Transfer Message sent by the distributed base station, the centralized base station sends a REQUEST for retrieving the CONTEXT of the called terminal (RETRIEVE UE CONTEXT REQUEST) Message to the original base station (oldGNB).
And 809, sending a retrieve called terminal context response message.
And after receiving the request message for retrieving the called terminal CONTEXT, the original base station returns a RESPONSE (RETRIEVE UE CONTEXT RESPONSE) message for retrieving the called terminal CONTEXT to the centralized base station.
An evolved system packet fall back redirection decision 810.
After receiving the context response message of the called terminal, the centralized base station makes a packet fallback redirection decision of the evolved system, and determines the redirection target of the called terminal, such as a 4G network.
811, transmitting the downlink rrc transfer message.
After obtaining the redirection target, the centralized base station sends a downlink radio resource control transfer message to the decentralized base station, wherein the downlink radio resource control transfer message carries the content of a radio resource control release message, and the radio resource control release message comprises the redirection target.
And 812, sending a radio resource control release message.
And after receiving the downlink radio resource control transfer message of the centralized base station, the decentralized base station sends a radio resource control release message to the terminal, wherein the radio resource control release message comprises a redirection target.
813 redirection to the target frequency point.
When receiving the radio resource control release message sent by the decentralized base station, the terminal redirects to the 4G network, establishes connection with the base station eNB of the 4G network, and carries out voice bearing in the 4G network system to establish voice service, namely, normal voice service can be carried out.
Referring to fig. 9, the terminal of the redirection flow is the master terminal, and the master terminal is in an inactive state.
And 901, initiating a radio resource control recovery request.
The calling terminal responds to the call request of the user and initiates a radio resource control recovery request to the scattered base station, and the radio resource control recovery request carries a voice call indication.
And 902, sending an initialization uplink radio resource control transfer message.
The distributed base station sends an initialization uplink radio resource control transfer message to the centralized base station, wherein the initialization uplink radio resource control transfer message contains the content of the radio resource control recovery request message.
903, evolved system packet fall back redirection decision.
Responding the initialized uplink transfer message to carry out the packet fallback redirection judgment of the evolution system, and determining the redirection target of the called terminal.
And 904, sending a downlink radio resource control transfer message.
After obtaining the redirection target, the centralized base station sends a downlink radio resource control transfer message to the decentralized base station, wherein the downlink radio resource control transfer message carries the content of a radio resource control release message, and the radio resource control release message comprises the redirection target.
905, sending a radio resource control release message.
And after receiving the downlink radio resource control transfer message of the centralized base station, the decentralized base station sends a radio resource control release message to the terminal, wherein the radio resource control release message comprises a redirection target.
And 906, redirecting to the target frequency point.
When receiving the radio resource control release message sent by the decentralized base station, the terminal redirects to the 4G network, establishes connection with the base station eNB of the 4G network, and carries out voice bearing in the 4G network system to establish voice service, namely, normal voice service can be carried out.
In a fourth aspect, an embodiment of the present disclosure provides a redirection device for an inactive terminal, where the redirection device may redirect the inactive terminal and perform a voice service.
Referring to fig. 10, the redirection apparatus of the terminal in the inactive state may be used to centralize the base station so that the terminal performs redirection. The redirection device comprises:
a receiving module 1001, configured to receive an initialized uplink transfer message of a decentralized base station, where the decentralized base station sends the initialized uplink transfer message based on a radio resource control recovery request message of a terminal, and the terminal is in an inactive state, where the radio resource control recovery request message carries a voice call indication;
a redirection module 1002, configured to determine a redirection target of an evolved system packet fallback;
a sending module 1003, configured to send the redirection target to a decentralized base station, so that the terminal redirects according to the redirection target.
According to the redirection device of the non-activated terminal provided by the embodiment of the disclosure, the receiving module receives an initialized uplink transfer message of a decentralized base station, the redirection module judges that an evolved system packet falls back for redirection, and the sending module sends the redirection target to the decentralized base station, so that the terminal can redirect according to the redirection target, that is, a radio resource control release message is sent to the terminal for redirection, and therefore the terminal can redirect, and the message interaction flow between the terminal and the base station is reduced, thereby shortening the call delay, reducing the call drop rate, and further improving the voice user experience.
In a fifth aspect, an embodiment of the present disclosure provides an electronic device, including:
one or more processors;
a storage device having one or more programs stored thereon, which when executed by one or more processors, cause the one or more processors to implement any of the methods of the above-described inactive state terminal.
In a sixth aspect, the embodiments of the present disclosure provide a computer readable medium, on which a computer program is stored, where the computer program is executed by a processor to implement any one of the methods of the terminal in the inactive state.
It will be understood by those of ordinary skill in the art that all or some of the steps of the methods, systems, functional modules/units in the devices disclosed above may be implemented as software, firmware, hardware, and suitable combinations thereof. In a hardware implementation, the division between functional modules/units mentioned in the above description does not necessarily correspond to the division of physical components; for example, one physical component may have multiple functions, or one function or step may be performed by several physical components in cooperation. Some or all of the physical components may be implemented as software executed by a processor, such as a central processing unit, digital signal processor, or microprocessor, or as hardware, or as an integrated circuit, such as an application specific integrated circuit. Such software may be distributed on computer readable media, which may include computer storage media (or non-transitory media) and communication media (or transitory media). The term computer storage media includes volatile and nonvolatile, removable and non-removable media implemented in any method or technology for storage of information such as computer readable instructions, data structures, program modules or other data, as is well known to those of ordinary skill in the art. Computer storage media includes, but is not limited to, RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, Digital Versatile Disks (DVD) or other optical disk storage, magnetic cassettes, magnetic tape, magnetic disk storage or other magnetic storage devices, or any other medium which can be used to store the desired information and which can be accessed by a computer. In addition, communication media typically embodies computer readable instructions, data structures, program modules or other data in a modulated data signal such as a carrier wave or other transport mechanism and includes any information delivery media as known to those skilled in the art.
Example embodiments have been disclosed herein, and although specific terms are employed, they are used and should be interpreted in a generic and descriptive sense only and not for purposes of limitation. In some instances, features, characteristics and/or elements described in connection with a particular embodiment may be used alone or in combination with features, characteristics and/or elements described in connection with other embodiments, unless expressly stated otherwise, as would be apparent to one skilled in the art. Accordingly, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the scope of the disclosure as set forth in the appended claims.

Claims (16)

1. A redirection method for a non-activated terminal comprises the following steps:
responding to an initialized uplink transfer message of the scattered base station, and determining a redirection target;
and sending a downlink radio resource control transfer message to the distributed base station so that the terminal can complete redirection according to the redirection target, wherein the distributed base station sends the initialization uplink transfer message based on a radio resource control recovery request message of the terminal, the downlink radio resource control transfer message carries the redirection target, and the terminal is in an inactive state.
2. The method of claim 1, wherein the terminal is a called terminal, the method comprising:
receiving an initialization uplink transfer message of the scattered base station; the initialization uplink transfer message carries the radio resource control recovery request message, and the scattered base station responds to the radio resource control recovery request message of the terminal to send the initialization uplink transfer message;
responding the initialized uplink transfer message to carry out blind redirection judgment and determining the redirection target of the called terminal;
and sending a downlink radio resource control transfer message to the dispersed base station, wherein the downlink radio resource control transfer message carries the radio resource control release message so that the terminal can be redirected according to the redirection target.
3. The method of claim 2, wherein before receiving the message for initiating uplink transfer of the scattered base station, the method further comprises:
receiving a voice establishment request message, wherein the voice establishment request message comprises a voice identifier;
and sending a paging message to the decentralized base station based on the voice establishment request message, so that the decentralized base station sends the initialization uplink transfer message after receiving a radio resource control recovery request sent by the called terminal responding to the paging message.
4. The method of claim 2, wherein after receiving the voice setup request message, further comprising:
and sending a voice establishment response message to an authentication management entity based on the voice establishment request message.
5. The method of claim 1, wherein the terminal is a called terminal, the method comprising:
receiving an initialization uplink transfer message of the scattered base station; the initialization uplink transfer message carries the radio resource control recovery request message, and the scattered base station responds to the radio resource control recovery request message of the terminal to send the initialization uplink transfer message;
sending a request message for retrieving the context of the called terminal to an original base station, wherein the original base station is the base station which serves the called terminal at last;
receiving a context response message returned by the original base station for retrieving the called terminal;
carrying out redirection judgment based on the called terminal context, and determining a redirection target of the called terminal;
and sending a downlink radio resource control transfer message to the dispersed base station, wherein the downlink radio resource control transfer message carries the radio resource control release message so that the terminal can be redirected according to the redirection target.
6. The method of claim 5, wherein before receiving the message for initiating uplink transfer of the decentralized base station, the method further comprises:
receiving a wireless access network paging message sent by the original base station;
and responding the paging message of the wireless access network to send a paging message to the decentralized base station, so that the decentralized base station sends the initialization uplink transfer message after receiving a wireless resource control recovery request sent by the called terminal responding to the paging message.
7. The method of claim 1, wherein the terminal is a calling terminal, the method comprising:
receiving an initialization uplink transfer message of the scattered base station; the initialization uplink transfer message carries the radio resource control recovery request message, and the scattered base station responds to the radio resource control recovery request message of the terminal to send the initialization uplink transfer message;
responding the initialized uplink transfer message to carry out redirection judgment and determining the redirection target of the calling terminal;
and sending a downlink radio resource control transfer message to the dispersed base station, wherein the downlink radio resource control transfer message carries the radio resource control release message so that the terminal can be redirected according to the redirection target.
8. The method of any one of claims 1-7, wherein the redirection targets include redirected networks and reselected frequency points.
9. A redirection method for a non-activated terminal comprises the following steps:
responding to a radio resource control recovery request message of a terminal to send an initialization uplink transfer message for a centralized base station to determine a redirection target, forwarding a downlink radio resource control transfer message to the terminal, and enabling the terminal to redirect according to the redirection target; the downlink radio resource control transfer message carries a redirection target, and the terminal is in an inactive state.
10. The method of claim 9, wherein the method comprises:
receiving a radio resource control recovery request message of the terminal;
sending the initialization uplink transfer message to the centralized base station; the initialization uplink transfer message carries the radio resource control recovery request message for the centralized base station to determine the redirection target;
receiving a downlink radio resource control transfer message returned by the centralized base station, wherein the downlink radio resource control transfer message carries the radio resource control release message;
and forwarding the radio resource control release message to the terminal, wherein the radio resource control release message carries the redirection target.
11. The method of any one of claims 9-10, wherein the redirection targets include redirected networks and reselected frequency points.
12. A redirection method for a non-activated terminal comprises the following steps:
sending a radio resource control recovery request message to a base station, and responding to a radio resource control release message returned by the base station to perform redirection, wherein the radio resource control recovery request message carries a voice call indication, the radio resource control release message carries the redirection target, and a terminal executing the redirection is in an inactive state.
13. The method of claim 12, wherein the terminal is a called terminal, and the called terminal sends a radio resource control recovery request message to the base station after receiving a radio access network paging request sent by the base station.
14. A redirection device for an inactive state terminal, comprising:
a receiving module, configured to receive an initialized uplink transfer message of a decentralized base station, where the decentralized base station sends the initialized uplink transfer message based on a radio resource control recovery request message of a terminal, and the terminal is in an inactive state, where the radio resource control recovery request message carries a voice call indication;
the redirection module is used for judging a redirection target of the terminal;
and the sending module is used for sending the redirection target to the decentralized base station so that the terminal can redirect according to the redirection target.
15. An electronic device, comprising:
one or more processors;
storage means having one or more programs stored thereon which, when executed by the one or more processors, cause the one or more processors to implement the method of any one of claims 1-8.
16. A computer-readable medium, on which a computer program is stored which, when being executed by a processor, carries out the method according to any one of claims 1-8.
CN201911127753.8A 2019-11-18 2019-11-18 Redirection method of inactive state terminal, electronic equipment and computer readable medium Pending CN112822789A (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115190556A (en) * 2022-06-10 2022-10-14 联想(北京)有限公司 Communication method, source base station, target base station, communication system, and storage medium

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CN109699050B (en) * 2017-10-24 2022-02-18 普天信息技术有限公司 Method, base station, equipment and system for recovering connection of inactive state terminal
EP3747236B1 (en) * 2018-04-02 2023-02-15 LG Electronics Inc. Method and apparatus for discarding buffered data while keeping connection in cp-up separation
CN109756900B (en) * 2018-06-05 2021-02-23 Oppo广东移动通信有限公司 Method and device for improving UE identification security and computer storage medium

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115190556A (en) * 2022-06-10 2022-10-14 联想(北京)有限公司 Communication method, source base station, target base station, communication system, and storage medium
CN115190556B (en) * 2022-06-10 2024-02-27 联想(北京)有限公司 Communication method, source base station, target base station, communication system, and storage medium

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