CN115442856A - Method and device for realizing same-frequency switching of user equipment, computer equipment and medium - Google Patents
Method and device for realizing same-frequency switching of user equipment, computer equipment and medium Download PDFInfo
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
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- H04W36/00—Hand-off or reselection arrangements
- H04W36/0005—Control or signalling for completing the hand-off
- H04W36/0011—Control or signalling for completing the hand-off for data sessions of end-to-end connection
- H04W36/0016—Hand-off preparation specially adapted for end-to-end data sessions
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/20—Manipulation of established connections
- H04W76/22—Manipulation of transport tunnels
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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
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Abstract
The present disclosure provides a method, an apparatus, a computer device and a storage medium for implementing common frequency handover of a user equipment, wherein the method comprises: after user equipment initiates a mobility registration process, triggering the user equipment to identify the state of a PDU session; judging whether the PDU session of the user equipment is in an idle state; if so, sending indication information containing the idle state of the PDU session of the user equipment to a background program preset in the user equipment so that the background program initiates a packet service based on the indication information and converts the PDU session of the user equipment from the idle state to a connection state; and when the PDU session of the user equipment is in a connected state, the access network equipment is allowed to perform same-frequency switching on the user equipment. The technical scheme provided by the disclosure solves the problem that the user equipment cannot perform same-frequency switching under the condition that the user equipment is not connected with PDU (protocol data unit) after the user equipment initiates a mobility registration process, and improves the service experience of users.
Description
Technical Field
The present disclosure relates to the field of communications technologies, and in particular, to a method, an apparatus, a computer device, and a computer-readable storage medium for implementing common-frequency handover of a user equipment.
Background
In the 5G (the 5th Generation Mobile Networks, 5th Generation Mobile communication network) independent networking (SA) technology, according to the description of section 5.3.5.2 in Protocol No. 38.331 of 3GPP (3 rd Generation Partnership Project), a base station cannot perform co-frequency handover with respect to NR (New Radio interface) when there is no Protocol Data Unit (PDU) session, so that User Equipment (UE) cannot perform co-frequency handover when it is in RRC (Radio Resource Control) connection state but does not have DRB (Data Radio Resource Bearer).
Moreover, the inventor finds, in an actual SA test, that after the UE initiates a mobility registration procedure, according to a requirement in protocol No. 23.502 of 3GPP, the UE does not carry a PDU activation request (uplink-data-status) in the registration request, and the network side device does not actively create a PDU session (PDU session) according to the description of protocol No. 23.502, so that the UE may be in an RRC connected state without PDU connection. At this time, the UE cannot perform the same-frequency handover, which causes the UE to pull the network until the signal of the serving cell becomes poor, resulting in a failure of the UE voice call service.
Disclosure of Invention
The present disclosure has been made to at least partially solve the technical problems occurring in the prior art.
According to an aspect of the embodiments of the present disclosure, a method for implementing co-frequency handover of user equipment is provided, where the method includes:
after user equipment initiates a mobility registration process, triggering the user equipment to identify the state of a Protocol Data Unit (PDU) session of the user equipment;
judging whether the PDU session of the user equipment is in an idle state;
if so, sending indication information containing the idle state of the PDU session of the user equipment to a background program preset in the user equipment so that the background program initiates a packet service based on the indication information and converts the PDU session of the user equipment from the idle state to a connection state;
and when the PDU conversation of the user equipment is in a connected state, allowing the access network equipment to perform same-frequency switching on the user equipment.
According to another aspect of the embodiments of the present disclosure, an apparatus for implementing co-frequency handover of user equipment is provided, where the apparatus includes:
the control module is set to trigger the user equipment to identify the state of a Protocol Data Unit (PDU) session after the user equipment initiates a mobility registration process;
the first judging module is arranged for judging whether the PDU session of the user equipment is in an idle state;
a sending module, configured to send, when the determination result of the first determining module is that the PDU session of the user equipment is in an idle state, indication information that the PDU session of the user equipment is in the idle state to a daemon preset in the user equipment, so that the daemon initiates a packet service based on the indication information, and converts the PDU session of the user equipment from the idle state to a connected state; and (c) a second step of,
and the permission module is set to allow the access network equipment to perform same-frequency switching on the user equipment when the PDU session of the user equipment is in a connected state.
According to another aspect of the embodiments of the present disclosure, there is provided a computer device, including a memory and a processor, where the memory stores a computer program, and when the processor runs the computer program stored in the memory, the processor executes the method for implementing co-frequency handover of a user equipment.
According to still another aspect of the embodiments of the present disclosure, there is provided a computer-readable storage medium, on which a computer program is stored, where when the computer program is executed by a processor, the processor executes the method for implementing intra-frequency handover of a user equipment.
The technical scheme provided by the embodiment of the disclosure can have the following beneficial effects:
according to the method for realizing the same-frequency switching of the user equipment, the PDU session of the user equipment is converted from the idle state to the connected state by starting the background program preset in the user equipment to initiate the background packet service under the condition that the user equipment is not connected with the PDU, so that the access network equipment can carry out the same-frequency switching on the user equipment when the user equipment has the requirement of the same-frequency switching, and the service experience of a user is improved.
Additional features and advantages of the disclosure will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by the practice of the disclosure. The objectives and other advantages of the disclosure may be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
Drawings
The accompanying drawings are included to provide a further understanding of the disclosed embodiments and are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the example serve to explain the principles of the disclosure and not to limit the disclosure.
Fig. 1 is a schematic flow chart of a method for implementing co-frequency handover of user equipment according to an embodiment of the present disclosure;
fig. 2 is a schematic structural diagram of an apparatus for implementing co-frequency switching of user equipment according to an embodiment of the present disclosure;
fig. 3 is a schematic structural diagram of a computer device according to an embodiment of the present disclosure.
Detailed Description
To make the objects, technical solutions and advantages of the embodiments of the present disclosure more apparent, the following detailed description of the embodiments of the present disclosure is provided with reference to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present disclosure, are given by way of illustration and explanation only, not limitation.
It should be noted that the terms "first," "second," and the like in the description and claims of the present disclosure and in the foregoing drawings are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order; furthermore, the embodiments and features of the embodiments in the present disclosure may be arbitrarily combined with each other without conflict.
When the user equipment in the 5G communication network performs cell switching, the two user equipment which are taken as a called user and a calling user are both 5G user equipment and are both managed by core network equipment.
The specific cell switching process is as follows: 1) After finishing the last call service, the first user equipment executes a Fast return (Fast return) instruction, and returns to the 5G SA network, at this time, the first user equipment executes a mobility Registration process and initiates a Registration Request (Registration Request) to the first access network equipment.
It should be noted that, at this time, the first ue does not carry a PDU activation Request (uplink-Data-status) in the Registration Request, and does not have a Data Radio Bearer (DRB).
2) And the first access network equipment forwards the Registration Request to the core network equipment.
According to the specification of protocol No. 23.502 in 3GPP, the first access network device does not actively create a PDU session without obtaining an indication of the first user equipment. If the first user equipment wants to switch to a cell with better Signal quality, but the first access network equipment cannot perform co-channel switching on the first user equipment due to no PDU session or DRB, so that co-channel Interference is increased, and a Signal to Interference plus Noise Ratio (SINR) of the first user equipment in a moving process is reduced.
3) The second user equipment sends a call request to the second access network equipment, and hopes to establish a call service with the first user equipment.
4) And the second access network equipment forwards the call request sent by the second user equipment to the core network equipment.
5) The core network equipment receives a Registration Request of the first user equipment and a call Request sent by the second user equipment forwarded by the second access network equipment.
At this time, according to the description of section 5.3.5.2 in the protocol No. 38.331 in 3GPP, the core network device requires to establish a PDU session where a Channel Quality Indication (CQI) is 5, but because the SINR of the first user equipment in the moving process is reduced and the first user equipment does not have the PDU session, the first user equipment cannot perform co-frequency switching and is switched to a cell with better signal Quality (the co-frequency refers to the same frequency of a working frequency point of the current cell and a main frequency point of a cell to be switched), so that the first user equipment serving as a called user equipment cannot establish a call service with the second user equipment serving as a calling user equipment, that is, a normal call flow cannot be completed.
In order to solve the problem that the voice call service fails due to the fact that the user equipment cannot perform the same-frequency switching, the following technical scheme is adopted in the embodiment of the disclosure.
Fig. 1 is a flowchart illustrating a method for implementing co-frequency handover of user equipment according to an embodiment of the present disclosure. As shown in fig. 1, the implementation method includes the following steps S101 to S104.
S101, after user equipment initiates a mobile registration process, triggering the user equipment to identify the state of a PDU session of the user equipment;
s102, judging whether the PDU session of the user equipment is in an idle state, if so, executing a step S103;
s103, sending indication information containing idle state of PDU session of user equipment to a background program preset in the user equipment, so that the background program initiates packet service based on the indication information and converts the PDU session of the user equipment from the idle state to a connection state;
s104, when the PDU session of the user equipment is in a connected state, the access network equipment is allowed to perform same-frequency switching on the user equipment, so that when the user equipment wants to switch to a cell with better signal quality, the access network equipment can perform same-frequency switching on the user equipment.
In the embodiment, when the user equipment is not connected with the PDU, the PDU session of the user equipment is converted from the idle state to the connected state by starting the background program preset in the user equipment to initiate the background packet service, so that the access network equipment can perform same-frequency switching on the user equipment when the user equipment has the requirement of same-frequency switching, and the service experience of a user is improved.
In a specific embodiment, before the user equipment is triggered to identify the status of its PDU session in step S101, the following steps S105 and S106 are further included.
S105, after the user equipment initiates a mobility registration process, triggering the user equipment to identify the RRC state of the user equipment;
s106, judging whether the RRC of the user equipment is in a connected state, if so, executing the step S101 of triggering the user equipment to identify the state of the PDU session of the user equipment; if not, the current process is ended, and the user equipment does not need to perform same-frequency switching at the moment.
In this embodiment, after the user equipment initiates a mobility registration procedure, the user equipment is triggered to autonomously identify the RRC state of the user equipment, and if the RRC of the user equipment is in a connected state but a PDU session is in an idle state, a background program preset in the user equipment is started to initiate a background packet service, so that the PDU session of the user equipment is converted from the idle state to the connected state; if the RRC of the user equipment is in an idle state, the user equipment does not need to pay attention to whether the PDU session is in the idle state or the connected state because the user equipment does not have the same frequency switching requirement.
In a specific embodiment, when the PDU session status of the user equipment is determined to be in the connected status in step S102, step S103 is skipped to directly execute step S104, that is, the access network equipment is directly allowed to perform the same-frequency handover on the user equipment.
In this embodiment, after the user equipment initiates the mobility registration procedure, if the RRC and PDU sessions of the user equipment are both in a connected state, it indicates that the same-frequency handover condition of the user equipment is met, and the access network equipment may be directly allowed to perform the same-frequency handover on the user equipment.
The method for implementing co-frequency switching of user equipment provided by the embodiment of the disclosure can control the user equipment to autonomously identify the RRC state of the user equipment after initiating a mobility registration process, trigger the user equipment to identify the PDU session state when determining that the user equipment is in the RRC connected state, and send the indication information containing the PDU session state of the user equipment in the idle state to a background program preset in the user equipment when determining that the PDU session of the user equipment is in the idle state, so as to start the background program to initiate a background packet service and convert the PDU session of the user equipment from the idle state to the connected state. Therefore, the implementation method of the embodiment of the disclosure can identify the RRC connected state and control the PDU session to complete the connected state, thereby solving the problem that the user equipment cannot perform the same frequency switching when the user equipment is in the RRC connected state and the PDU session is in the idle state, and improving the service experience of the user.
Fig. 2 is a schematic structural diagram of an apparatus for implementing co-frequency switching of user equipment according to an embodiment of the present disclosure. As shown in fig. 2, the implementation apparatus 2 includes: a control module 21, a first judging module 22, a sending module 23 and a permitting module 24.
The control module 21 is configured to trigger the ue to identify the PDU session state after the ue initiates the mobility registration procedure; the first judging module 22 is configured to judge whether the PDU session of the ue is in an idle state; the sending module 23 is configured to send, when the determination result of the first determining module 22 is that the PDU session of the user equipment is in an idle state, the indication information that the PDU session of the user equipment is in the idle state to a daemon preset in the user equipment, so that the daemon initiates a packet service based on the indication information, and converts the PDU session of the user equipment from the idle state to a connected state; the grant module 24 is configured to allow the access network device to perform the same-frequency handover on the user equipment when the PDU session of the user equipment is in a connected state.
In a specific embodiment, the control module 21 is further configured to, after the ue initiates the mobility registration procedure, first trigger the ue to identify its RRC state;
correspondingly, the implementation apparatus 2 further includes: a second determining module 25 configured to determine whether the RRC of the user equipment is in a connected state; the control module 21 is further configured to, when the determination result of the second determining module 25 is that the RRC of the ue is in the connected state, perform an operation of triggering the ue to identify the PDU session state.
In a specific embodiment, the permitting module 24 is further configured to directly allow the access network device to perform the same-frequency handover on the user equipment when the determination result of the first determining module 22 is that the PDU session of the user equipment is in a connected state.
The device for realizing the same-frequency switching of the user equipment provided by the embodiment of the disclosure can control the user equipment to autonomously identify the RRC state of the user equipment after initiating the mobility registration process, trigger the user equipment to identify the PDU session state of the user equipment when determining that the user equipment is in the RRC connected state, and send the indication information containing the PDU session state of the user equipment in the idle state to a background program preset in the user equipment when determining that the PDU session of the user equipment is in the idle state so as to start the background program to initiate a background packet service and convert the PDU session of the user equipment from the idle state to the connected state. Therefore, the implementation device of the embodiment of the disclosure can identify the RRC connected state and control the PDU session to complete the connected state, thereby solving the problem that the user equipment cannot perform the same-frequency switching when the user equipment is in the RRC connected state and the PDU session is in the idle state, and improving the service experience of the user.
Based on the same technical concept, an embodiment of the present disclosure correspondingly provides a computer device, as shown in fig. 3, the computer device 3 includes a memory 31 and a processor 32, a computer program is stored in the memory 31, and when the processor 32 runs the computer program stored in the memory 31, the processor 32 executes the method for implementing the same-frequency handover of the user equipment.
Based on the same technical concept, the embodiment of the present disclosure correspondingly provides a computer-readable storage medium, on which a computer program is stored, and when the computer program is executed by a processor, the processor executes the method for implementing the same-frequency handover of the user equipment.
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, or 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 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.
Finally, it should be noted that: the above embodiments are only used for illustrating the technical solutions of the present disclosure, and not for limiting the same; although the present disclosure has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art will understand that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present disclosure.
Claims (8)
1. A method for realizing same-frequency switching of user equipment is characterized by comprising the following steps:
after user equipment initiates a mobility registration process, triggering the user equipment to identify the state of a Protocol Data Unit (PDU) session of the user equipment;
judging whether the PDU session of the user equipment is in an idle state;
if so, sending indication information containing the idle state of the PDU session of the user equipment to a background program preset in the user equipment so that the background program initiates a packet service based on the indication information and converts the PDU session of the user equipment from the idle state to a connection state;
and when the PDU conversation of the user equipment is in a connected state, allowing the access network equipment to perform same-frequency switching on the user equipment.
2. The method of claim 1, wherein after the ue initiates the mobility registration procedure and before triggering the ue to identify its PDU session status, the method further comprises:
triggering the user equipment to identify the state of the radio resource control RRC thereof;
judging whether the RRC of the user equipment is in a connected state;
if yes, executing the step of triggering the user equipment to identify the state of the PDU conversation.
3. The method according to claim 1 or 2, further comprising:
and if the PDU session of the user equipment is in a connected state, allowing the access network equipment to perform same-frequency switching on the user equipment.
4. A device for realizing same-frequency switching of user equipment is characterized by comprising:
the control module is set to trigger the user equipment to identify the state of a Protocol Data Unit (PDU) session after the user equipment initiates a mobility registration process;
the first judging module is arranged for judging whether the PDU session of the user equipment is in an idle state;
a sending module, configured to send, when the determination result of the first determining module is that the PDU session of the user equipment is in an idle state, indication information that the PDU session of the user equipment is in the idle state to a daemon preset in the user equipment, so that the daemon initiates a packet service based on the indication information, and converts the PDU session of the user equipment from the idle state to a connected state; and the number of the first and second groups,
and the permission module is set to allow the access network equipment to perform same-frequency switching on the user equipment when the PDU session of the user equipment is in a connected state.
5. The apparatus of claim 4, wherein the control module is further configured to, after the ue initiates the mobility registration procedure, trigger the ue to identify the RRC state of the ue;
the implementation device further comprises: a second judgment module configured to judge whether the RRC of the user equipment is in a connected state;
the control module is further configured to, when the determination result of the second determination module is that the RRC of the ue is in a connected state, perform an operation of triggering the ue to identify the PDU session state of the ue.
6. The apparatus according to claim 4 or 5, wherein the permitting module is further configured to allow the access network device to perform intra-frequency handover on the user equipment when the determination result of the first determining module is that the PDU session of the user equipment is in a connected state.
7. A computer device, characterized by comprising a memory and a processor, wherein the memory stores a computer program, and when the processor runs the computer program stored in the memory, the processor executes the method for implementing the same-frequency handover of the user equipment according to any one of claims 1 to 3.
8. A computer-readable storage medium, on which a computer program is stored, wherein when the computer program is executed by a processor, the processor executes the method for implementing the intra-frequency handover of the user equipment according to any one of claims 1 to 3.
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