CN115442856A - Method and device for realizing same-frequency switching of user equipment, computer equipment and medium - Google Patents

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

Method, device, computer equipment, and medium for implementing same-frequency handover of user equipment

technical field

The present disclosure relates to the field of communication technologies, and in particular, to a method for implementing intra-frequency handover of user equipment, an apparatus for implementing intra-frequency handover of user equipment, a computer device, and a computer-readable storage medium.

Background technique

According to 5.3 .5.2 The description in chapter 5.2, when there is no protocol data unit (ProtocolData Unit, PDU) session, the base station cannot perform co-frequency handover on NR (New Radio, new air interface), resulting in user equipment (UE, User Equipment) being in RRC (Radio Resource Control, radio resource control) connection state, without DRB (Data Radio Bearer, data resource bearer), the same frequency handover cannot be performed.

Moreover, the inventor found in the actual SA test that when the UE initiates the mobility registration process, according to the requirements of the 3GPP No. 23.502 protocol, the UE will not carry the PDU activation request (uplink-data-status) in the registration request According to the description of No. 23.502 protocol, the network side device will not actively create a PDU session (PDU session), which may cause the UE to be in an RRC connection state without a PDU connection. At this time, the UE cannot perform intra-frequency handover, causing the user equipment to drag the network until the signal of the serving cell becomes poor, resulting in the failure of the voice call service of the UE.

Contents of the invention

The present disclosure has been made to at least partially solve the technical problems existing in the prior art.

According to an aspect of an embodiment of the present disclosure, a method for implementing intra-frequency handover of a user equipment is provided, and the implementation method includes:

After the user equipment initiates the mobility registration process, trigger the user equipment to identify the state of its protocol data unit PDU session;

Judging whether the PDU session of the user equipment is in an idle state;

If so, then send the indication information including that the PDU session of the user equipment is in an idle state to the background program preset in the user equipment, so that the background program initiates a small packet service based on the indication information, and the PDU session of the user equipment is transferred from The idle state is converted to the connected state;

When the PDU session of the user equipment is in the connected state, the access network device is allowed to perform intra-frequency handover of the user equipment.

According to another aspect of the embodiments of the present disclosure, an apparatus for realizing intra-frequency handover of user equipment is provided, and the apparatus for implementing includes:

A control module configured to trigger the user equipment to identify the state of its protocol data unit PDU session after the user equipment initiates the mobility registration process;

A first judging module, which is configured to judge whether the PDU session of the user equipment is in an idle state;

A sending module, which is configured to send indication information including that the PDU session of the user equipment is in an idle state to a background preset in the user equipment when the judgment result of the first judgment module is that the PDU session of the user equipment is in an idle state A program, so that the background program initiates a small packet service based on the indication information, and converts the PDU session of the user equipment from an idle state to a connected state; and,

The permission module is configured to allow the access network equipment to perform intra-frequency switching of the user equipment when the PDU session of the user equipment is in a connected state.

According to yet another aspect of the embodiments of the present disclosure, there is provided a computer device, including a memory and a processor, the memory stores a computer program, and when the processor runs the computer program stored in the memory, the processor Execute the aforementioned method for realizing intra-frequency handover of user equipment.

According to yet another aspect of the embodiments of the present disclosure, a computer-readable storage medium is provided, on which a computer program is stored. When the computer program is executed by a processor, the processor executes the aforementioned method for implementing intra-frequency handover of user equipment.

The technical solutions provided by the embodiments of the present disclosure may include the following beneficial effects:

The embodiment of the present disclosure provides a user equipment same-frequency handover implementation method. When the user equipment has no PDU connection, the background small packet service is initiated by starting the background program preset in the user equipment, and the PDU session of the user equipment is converted from the idle state. In the connected state, the access network device can perform the same-frequency handover to the user equipment when the user equipment needs to be handed over at the same frequency, which improves the service experience of the user.

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 practice of the disclosure. The objectives and other advantages of the disclosure will be realized and attained by the structure particularly pointed out in the written description, claims hereof as well as the appended drawings.

Description of drawings

The accompanying drawings are used to provide a further understanding of the technical solutions of the present disclosure, and constitute a part of the specification, and are used together with the embodiments of the present disclosure to explain the technical solutions of the present disclosure, and do not constitute limitations to the technical solutions of the present disclosure.

FIG. 1 is a schematic flowchart of a method for implementing intra-frequency handover of user equipment provided by an embodiment of the present disclosure;

FIG. 2 is a schematic structural diagram of an apparatus for realizing intra-frequency handover of user equipment provided by an embodiment of the present disclosure;

FIG. 3 is a schematic structural diagram of a computer device provided by an embodiment of the present disclosure.

detailed description

In order to make the purpose, technical solutions and advantages of the embodiments of the present disclosure clearer, the specific implementation manners of the present disclosure will be described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to illustrate and explain the present disclosure, and are not intended to limit the present disclosure.

It should be noted that the terms "first" and "second" in the specification and claims of the present disclosure and the above-mentioned drawings are used to distinguish similar objects, and not necessarily used to describe a specific order or sequence; Moreover, the embodiments and the features in the embodiments in the present disclosure can be combined with each other arbitrarily if there is no conflict.

When the user equipment performs cell handover in the 5G communication network, the two user equipments as the called user and the calling user are both 5G user equipment, and both are managed by the core network equipment.

The specific cell switching process is: 1) After the first user equipment completes the last call service, it executes a fast return (Fast return) command and returns to the 5G SA network. At this time, the first user equipment performs a mobility registration process, A registration request (Registration Request) is initiated to the first access network device.

It should be noted that at this time, the first user equipment does not carry a PDU activation request (uplink-data-status) in the Registration Request, and does not have a data resource bearer (Data Radio Bearer, DRB).

2) The first access network device forwards the Registration Request to the core network device.

According to the provisions of No. 23.502 protocol in 3GPP, the first access network device will not actively create a PDU session without obtaining an instruction from the first user equipment. If the first user equipment wants to switch to a cell with better signal quality at this time, but because there is no PDU session and DRB, the first access network device cannot perform co-frequency handover to the first user equipment, resulting in increased co-channel interference, making A signal to interference plus noise ratio (Signal to Interference plus Noise Ratio, SINR) of the first user equipment decreases during the moving process.

3) The second user equipment sends a call request to the second access network device, hoping to establish a call service with the first user equipment.

4) The second access network device forwards the call request sent by the second user equipment to the core network device.

5) The core network device receives the Registration Request of the first user equipment, and the call request sent by the second user equipment forwarded by the second access network device.

At this time, according to the description in Section 5.3.5.2 of Protocol No. 38.331 in 3GPP, the core network equipment requires the establishment of a PDU session with a Channel Quality Indication (CQI) of 5, but since the first user equipment is moving The SINR in the network decreases, and the first user equipment does not have a PDU session, so the first user equipment cannot perform intra-frequency handover and handover to a cell with better signal quality (same frequency refers to the working frequency of the current cell and the cell to be handed over The primary frequency point is the same frequency), which further causes the first user equipment as the called user equipment to be unable to establish a call service with the second user equipment as the calling user equipment, that is, unable to complete the normal call process.

In order to solve the above-mentioned problem of voice call service failure caused by the inability of the user equipment to perform intra-frequency handover, the embodiments of the present disclosure adopt the following technical solutions.

FIG. 1 is a schematic flowchart of a method for implementing intra-frequency handover of a user equipment provided by an embodiment of the present disclosure. As shown in FIG. 1 , the implementation method includes the following steps S101 to S104.

S101. After the user equipment initiates the mobility registration process, trigger the user equipment to identify the state of its PDU session;

S102. Determine whether the PDU session of the user equipment is in an idle state, and if so, perform step S103;

S103. Send the indication information including that the PDU session of the user equipment is in an idle state to the background program preset in the user equipment, so that the background program initiates a small packet service based on the indication information, and the PDU session of the user equipment is changed from idle state is transformed into a connected state;

S104. When the PDU session of the user equipment is in the connected state, allow the access network device to perform co-frequency handover of the user equipment, so that when the user equipment wishes to switch to a cell with better signal quality, the access network device can perform a handover to the user equipment Perform same-frequency switching.

In this embodiment, when the user equipment has no PDU connection, by starting the background program preset in the user equipment to initiate the background small packet service, the PDU session of the user equipment is converted from the idle state to the connected state, so that the user equipment has When the same-frequency handover is required, the access network equipment can perform the same-frequency handover to the user equipment, which improves the user's service experience.

In a specific implementation manner, before triggering the user equipment to identify the state of its PDU session in step S101, the following steps S105 and S106 are further included.

S105. After the user equipment initiates the mobility registration process, first trigger the user equipment to identify its RRC state;

S106. Determine whether the RRC of the user equipment is in a connected state, if so, perform the step of triggering the user equipment to identify the state of its PDU session in step S101; if not, then end the current process, and the user equipment does not need to perform intra-frequency handover at this time .

In this embodiment, after the user equipment initiates the mobility registration process, the user equipment is first triggered to autonomously identify its RRC state. If the RRC of the user equipment is in the connected state, but the PDU session is in the idle state, the user equipment is activated. The background program initiates the background small packet service to realize the conversion of the PDU session of the user equipment from the idle state to the connected state; if the RRC of the user equipment is in the idle state, since the user equipment does not need to switch between the same frequency at this time, there is no need to pay attention to the PDU session being idle state or connected state.

In a specific implementation manner, when step S102 determines that the PDU session state of the user equipment is in the connected state, skip step S103 and directly execute step S104, that is, directly allow the access network device to perform intra-frequency handover to the user equipment.

In this embodiment, after the user equipment initiates the mobility registration process, if both the RRC and PDU sessions of the user equipment are in the connected state, it means that the user equipment has the conditions for co-frequency handover at this time, and the access network device can directly allow the user equipment to Perform same-frequency switching.

The implementation method of the same-frequency handover of the user equipment provided by the embodiment of the present disclosure can control the RRC state of the user equipment to independently identify the user equipment after the user equipment initiates the mobility registration process, and trigger the user equipment identification when it is determined that the user equipment is in the RRC connection state The state of its PDU session, when it is determined 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 an idle state is sent to the background program preset in the user equipment to start the background program to initiate the background Small packet service, which converts the PDU session of the user equipment from the idle state to the connected state. It can be seen that the implementation method described in the embodiments of the present disclosure can identify the RRC connection state, and control the PDU session to complete the connection state, thereby solving the problem that the user equipment cannot perform intra-frequency handover when the user equipment is in the RRC connection state and the PDU session is in the idle state. problem, improving the user experience.

FIG. 2 is a schematic structural diagram of an apparatus for realizing intra-frequency handover of user equipment provided by an embodiment of the present disclosure. As shown in FIG. 2 , the implementation device 2 includes: a control module 21 , a first judgment module 22 , a sending module 23 and a permission module 24 .

Wherein, the control module 21 is set to trigger the user equipment to identify the state of its PDU session after the user equipment initiates the mobility registration process; the first judging module 22 is set to judge whether the PDU session of the user equipment is in an idle state; the sending module 23 is set to When the judgment result of the first judging module 22 is that the PDU session of the user equipment is in an idle state, the indication information including that the PDU session of the user equipment is in an idle state is sent to a background program preset in the user equipment, so that all The background program initiates a small packet service based on the indication information, and converts the PDU session of the user equipment from an idle state to a connected state; the permission module 24 is set to allow the access network equipment to communicate with the user equipment when the PDU session of the user equipment is in the connected state. Perform same-frequency switching.

In a specific implementation manner, the control module 21 is further configured to first trigger the user equipment to identify its RRC state after the user equipment initiates the mobility registration procedure;

Correspondingly, the implementation device 2 further includes: a second judging module 25, which is configured to judge whether the RRC of the user equipment is in a connected state; The result is that when the RRC of the user equipment is in the connected state, the operation of triggering the user equipment to identify the state of its PDU session is performed.

In a specific implementation manner, the permitting module 24 is further configured to directly allow the access network device to perform simultaneous frequency switching.

The device for implementing intra-frequency handover of user equipment provided by the embodiments of the present disclosure can control the RRC state of the user equipment to independently identify the user equipment after the user equipment initiates the mobility registration process, and trigger user equipment identification when it is determined that the user equipment is in the RRC connection state The state of its PDU session, when it is determined 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 an idle state is sent to the background program preset in the user equipment to start the background program to initiate the background Small packet service, which converts the PDU session of the user equipment from the idle state to the connected state. It can be seen that the implementation device described in the embodiments of the present disclosure can identify the RRC connection state, and control the PDU session to complete the connection state, thereby solving the problem that the user equipment cannot perform intra-frequency handover when the user equipment is in the RRC connection state and the PDU session is in the idle state. problem, improving the user experience.

Based on the same technical concept, the embodiment of the present disclosure also provides a corresponding computer device. As shown in FIG. When the processor 32 runs the computer program stored in the memory 31, the processor 32 executes the aforementioned method for realizing intra-frequency handover of the user equipment.

Based on the same technical concept, the embodiments of the present disclosure also provide a computer-readable storage medium, on which a computer program is stored. When the computer program is executed by a processor, the processor executes the aforementioned user equipment same-frequency handover implementation method.

Those of ordinary skill in the art can understand that all or some of the steps in the methods disclosed above, the functional modules/units in the system, and the device can be implemented as software, firmware, hardware, and an appropriate combination 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 composed of several physical components. Components cooperate to execute. 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). As known to those of ordinary skill in the art, the term computer storage media includes both volatile and nonvolatile media implemented in any method or technology for storage of information, such as computer readable instructions, data structures, program modules, or other data. permanent, removable and non-removable media. Computer storage media includes, but is not limited to, RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, digital versatile disk (DVD) or other optical disk storage, magnetic cartridges, tape, magnetic disk storage or other magnetic storage devices, or can Any other medium used to store desired information and which can be accessed by a computer. In addition, as is well known to those of ordinary skill in the art, 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 may include any information delivery media .

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present disclosure, not to limit them; although the present disclosure has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: It is still possible to modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the technical solutions of the various embodiments of the present disclosure. scope.

Claims (8)

1. A method for implementing same-frequency handover of user equipment, characterized in that, comprising: After the user equipment initiates the mobility registration process, trigger the user equipment to identify the state of its protocol data unit PDU session; Judging whether the PDU session of the user equipment is in an idle state; If so, then send the indication information including that the PDU session of the user equipment is in an idle state to the background program preset in the user equipment, so that the background program initiates a small packet service based on the indication information, and the PDU session of the user equipment is transferred from The idle state is converted to the connected state; When the PDU session of the user equipment is in the connected state, the access network device is allowed to perform intra-frequency handover of the user equipment. 2. The implementation method according to claim 1, characterized in that, after the user equipment initiates the mobility registration process and before the user equipment is triggered to identify the state of its PDU session, it further includes: triggering the user equipment to identify the state of its radio resource control RRC; Determine whether the RRC of the user equipment is in a connected state; If yes, the step of triggering the user equipment to identify the state of its PDU session is performed. 3. The implementation method according to claim 1 or 2, further comprising: If it is determined that the PDU session of the user equipment is in a connected state, the access network device is allowed to perform intra-frequency handover of the user equipment. 4. A device for implementing same-frequency handover of user equipment, characterized in that it includes: A control module configured to trigger the user equipment to identify the state of its protocol data unit PDU session after the user equipment initiates the mobility registration process; A first judging module, which is configured to judge whether the PDU session of the user equipment is in an idle state; A sending module, which is configured to send indication information including that the PDU session of the user equipment is in an idle state to a background preset in the user equipment when the judgment result of the first judgment module is that the PDU session of the user equipment is in an idle state A program, so that the background program initiates a small packet service based on the indication information, and converts the PDU session of the user equipment from an idle state to a connected state; and, The permission module is configured to allow the access network equipment to perform intra-frequency switching of the user equipment when the PDU session of the user equipment is in a connected state. 5. The implementation device according to claim 4, wherein the control module is further configured to, after the user equipment initiates a mobility registration procedure, first trigger the user equipment to identify its radio resource control (RRC) state; The implementation device further includes: a second judging module, which is configured to judge whether the RRC of the user equipment is in a connected state; The control module is further configured to, when the judgment result of the second judging module is that the RRC of the user equipment is in the connected state, execute the operation of triggering the user equipment to identify the state of its PDU session. 6. The implementation device according to claim 4 or 5, wherein the permission module is further configured to, when the judgment result of the first judgment module is that the PDU session of the user equipment is in the connected state, allow access The network equipment performs the same-frequency handover to the user equipment. 7. A computer device, characterized in that it comprises a memory and a processor, wherein a computer program is stored in the memory, and when the processor runs the computer program stored in the memory, the processor executes the computer program according to claim 1. The method for realizing intra-frequency handover of user equipment described in any one of 3 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 user program according to any one of claims 1 to 3. The implementation method of equipment same-frequency handover.

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