CN113692023B - Switching decision determining method and device, related equipment and storage medium - Google Patents

Switching decision determining method and device, related equipment and storage medium Download PDF

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Publication number
CN113692023B
CN113692023B CN202010419519.9A CN202010419519A CN113692023B CN 113692023 B CN113692023 B CN 113692023B CN 202010419519 A CN202010419519 A CN 202010419519A CN 113692023 B CN113692023 B CN 113692023B
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service
cell
terminal
voice
determining
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CN113692023A (en
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田宇琪
李新
童辉
刘建华
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China Mobile Communications Group Co Ltd
China Mobile Communications Ltd Research Institute
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China Mobile Communications Group Co Ltd
China Mobile Communications Ltd Research Institute
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0055—Transmission or use of information for re-establishing the radio link
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0055—Transmission or use of information for re-establishing the radio link
    • H04W36/0058—Transmission of hand-off measurement information, e.g. measurement reports
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0083—Determination of parameters used for hand-off, e.g. generation or modification of neighbour cell lists
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/24—Reselection being triggered by specific parameters
    • H04W36/30—Reselection being triggered by specific parameters by measured or perceived connection quality data

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

Abstract

The application discloses a method and a device for determining a switching decision, related equipment and a storage medium. Wherein the method comprises the following steps: the method comprises the steps that first network equipment determines the service type of a current operation service of a terminal; the service type of the current operation service comprises one of a data service and a voice service; determining a corresponding cell directional switching decision based on the service type of the current operation service; wherein, different service types correspond to different cell directional switching decisions; a cell directional switching decision corresponding to the voice service is associated with the voice quality corresponding to the voice service; the cell-directed handover decision is used for the terminal to perform cell-directed handover, and the target cell after handover supports a non-independent Networking (NSA) function.

Description

Switching decision determining method and device, related equipment and storage medium
Technical Field
The present application relates to the field of wireless communications, and in particular, to a method, an apparatus, a related device, and a storage medium for determining a handover decision.
Background
Currently, the public network of the fifth Generation mobile communication system (5g, 5th-Generation) Non-independent networking (NSA, non-standard) adopts the default directional handover function of the public network in the related art. When the terminal resides in a non-anchor Long Term Evolution (LTE) cell, in the process of performing directional handover, directional handover from the non-anchor LTE to the anchor LTE is performed for all services by periodically measuring the signal quality of the anchor LTE cell in the network, so as to ensure that the terminal resides in 5G as much as possible.
However, in the above process, for the voice service, there may be situations that the voice service is interrupted and the voice quality is deteriorated, thereby affecting the user experience.
Disclosure of Invention
The embodiment of the application provides a method and a device for determining a handover decision, related equipment and a storage medium, which can effectively reduce voice service interruption time delay caused by directional handover in related technologies and improve voice quality.
The technical scheme of the embodiment of the application is realized as follows:
the embodiment of the application provides a method for determining a handover decision, which is applied to a first network device, and the method comprises the following steps:
determining the service type of the current operation service of the terminal; the service type of the current operation service comprises one of a data service and a voice service;
determining a corresponding cell directional switching decision based on the service type of the current operation service; wherein,
different service types correspond to different cell directional switching decisions; a cell directional switching decision corresponding to the voice service is associated with the voice quality corresponding to the voice service; and the cell directional switching decision is used for the terminal to perform cell directional switching, and the switched target cell supports the NSA function.
In the above solution, the determining the service type of the current service operated by the terminal includes:
acquiring a quality of service class Identifier (QCI, qoS Classification Identifier) of a current operation service of the terminal;
and determining the service type of the current operation service of the terminal based on the obtained QCI.
In the foregoing solution, the determining a corresponding cell-oriented handover decision based on the service type of the currently running service includes one of:
determining a cell directional switching decision corresponding to the data service based on the anchor point priority under the condition that the service type of the current operation service is the data service;
and under the condition that the service type of the current operation service is a voice service, determining a cell directional switching decision corresponding to the voice service based on the voice quality corresponding to the voice service.
In the foregoing solution, the determining a cell-specific handover decision corresponding to the voice service based on the voice quality corresponding to the voice service includes:
configuring switching information based on the voice quality corresponding to the voice service;
and determining a cell directional switching decision corresponding to the voice service based on the switching information.
In the foregoing solution, the determining a cell-specific handover decision corresponding to the voice service based on the handover information includes:
under the condition that the switching information comprises a starting measurement threshold and a switching threshold, sending a measurement control message to the terminal; the sending of the measurement control message is associated with the measurement starting threshold, and the measurement control message is used for the terminal to measure the adjacent cell of the currently accessed cell;
receiving a measurement report message returned by the terminal; the measurement report message carries the measured signal quality of the adjacent cell; the neighboring cell communicates with a second network device;
and determining a cell directional switching decision corresponding to the voice service based on the signal quality of the adjacent cell and the switching threshold.
In the foregoing solution, the sending the measurement control message to the terminal includes:
comparing the signal quality of the cell currently accessed by the terminal with the starting measurement threshold to obtain a first comparison result;
and sending the measurement control message to the terminal under the condition that the first comparison result represents that the signal quality of the currently accessed cell is lower than the starting measurement threshold.
In the foregoing solution, the sending the measurement control message to the terminal includes:
and sending the measurement Control message to the terminal through Radio Resource Control (RRC) reconfiguration signaling.
In the foregoing solution, the determining a cell-specific handover decision corresponding to the voice service based on the signal quality of the neighboring cell and the handover threshold includes:
comparing the signal quality of the adjacent cell with the switching threshold to obtain a second comparison result;
under the condition that the second comparison result represents that the signal quality of the adjacent cell is higher than the switching threshold, triggering and starting a cell directional switching mode corresponding to the voice service;
and under the condition that the second comparison result indicates that the signal quality of the adjacent cell is lower than or equal to the switching threshold, the directional switching mode of the cell corresponding to the voice service is not triggered and started.
In the above solution, the triggering and starting the cell-oriented switching mode corresponding to the voice service includes:
and triggering and starting a cell directional switching mode corresponding to the voice service in a non-periodic mode.
In the above scheme, the method further comprises:
after the cell directional switching mode corresponding to the voice service is triggered and started, sending a cell directional switching instruction to the terminal; wherein,
the cell directional switching instruction is used for indicating the terminal to switch to the target cell in a directional manner; the target cell is a cell which meets the switching condition in the adjacent cells.
In the above scheme, the first network device provides access service for the terminal before cell directional switching, and the second network device provides access service for the terminal after cell directional switching.
An embodiment of the present application further provides a device for determining a handover decision, where the device includes:
the first determining unit is used for determining the service type of the current operation service of the terminal; the service type of the current operation service comprises one of a data service and a voice service;
a second determining unit, configured to determine a corresponding cell-oriented handover decision based on the service type of the currently running service; wherein,
different service types correspond to different cell directional switching decisions; a cell directional switching decision corresponding to the voice service is associated with the voice quality corresponding to the voice service; and the cell directional switching decision is used for the terminal to perform cell directional switching, and the switched target cell supports the NSA function.
In the foregoing solution, the first determining unit is specifically configured to:
acquiring QCI of the current operation service of the terminal;
and determining the service type of the current operation service of the terminal based on the obtained QCI.
In the foregoing solution, the second determining unit is specifically configured to:
determining a cell directional switching decision corresponding to the data service based on the anchor point priority under the condition that the service type of the current operation service is the data service;
and under the condition that the service type of the current operation service is a voice service, determining a cell directional switching decision corresponding to the voice service based on the voice quality corresponding to the voice service.
In the foregoing solution, the second determining unit is specifically configured to:
configuring switching information based on the voice quality corresponding to the voice service;
and determining a cell directional switching decision corresponding to the voice service based on the switching information.
In the foregoing solution, the second determining unit includes:
a sending subunit, configured to send a measurement control message to the terminal when the handover information includes a start measurement threshold and a handover threshold; the sending of the measurement control message is associated with the measurement starting threshold, and the measurement control message is used for the terminal to measure the adjacent cell of the currently accessed cell;
a receiving subunit, configured to receive a measurement report message returned by the terminal; the measurement report message carries the measured signal quality of the adjacent cell; the neighboring cell communicates with a second network device;
and the determining subunit is configured to determine, based on the signal quality of the neighboring cell and the handover threshold, a cell-oriented handover decision corresponding to the voice service.
In the foregoing solution, the sending subunit is specifically configured to:
comparing the signal quality of the cell currently accessed by the terminal with the starting measurement threshold to obtain a first comparison result;
and sending the measurement control message to the terminal under the condition that the first comparison result represents that the signal quality of the currently accessed cell is lower than the starting measurement threshold.
In the foregoing solution, the sending subunit is specifically configured to:
and sending the measurement control message to the terminal through RRC reconfiguration signaling.
In the foregoing solution, the determining subunit is specifically configured to:
comparing the signal quality of the adjacent cell with the switching threshold to obtain a second comparison result;
under the condition that the second comparison result represents that the signal quality of the adjacent cell is higher than the switching threshold, triggering and starting a cell directional switching mode corresponding to the voice service;
and under the condition that the second comparison result represents that the signal quality of the adjacent cell is lower than or equal to the switching threshold, the directional switching mode of the cell corresponding to the voice service is not triggered to be started.
In the foregoing solution, the determining subunit is specifically configured to:
and triggering and starting a cell directional switching mode corresponding to the voice service in a non-periodic mode.
In the above scheme, the apparatus further comprises:
a sending unit, configured to send a cell-specific handover instruction to the terminal after the second determining unit triggers and starts a cell-specific handover mode corresponding to the voice service; wherein,
the cell directional switching instruction is used for indicating the terminal to switch to the target cell in a directional manner; the target cell is a cell satisfying a handover condition among the adjacent cells.
In the above scheme, the first network device provides access service for the terminal before cell directional switching, and the second network device provides access service for the terminal after cell directional switching.
An embodiment of the present application further provides a first network device, where the first network device includes:
the processor is used for determining the service type of the current operation service of the terminal; the service type of the current operation service comprises one of a data service and a voice service; determining a corresponding cell directional switching decision based on the service type of the current operation service; wherein,
different service types correspond to different cell directional switching decisions; a cell directional switching decision corresponding to the voice service is associated with the voice quality corresponding to the voice service; and the cell directional switching decision is used for the terminal to perform cell directional switching, and the switched target cell supports the NSA function.
An embodiment of the present application further provides a first network device, where the first network device includes: a processor and a memory for storing a computer program operable on the processor;
when the processor is used for running the computer program, the steps of the method for determining a handover decision provided by the embodiment of the application are executed.
The embodiment of the present application further provides a storage medium, on which a computer program is stored, and the computer program, when executed by a processor, implements the steps of the method for determining a handover decision provided by the embodiment of the present application.
According to the method, the device, the related equipment and the storage medium for determining the switching decision, the first network equipment determines the service type of the current operation service of the terminal; the service type of the current operation service comprises one of a data service and a voice service; determining a corresponding cell directional switching decision based on the service type of the current operation service; wherein, different service types correspond to different cell directional switching decisions; a cell directional switching decision corresponding to the voice service is associated with the voice quality corresponding to the voice service; and the cell directional switching decision is used for the terminal to perform cell directional switching, and the switched target cell supports the NSA function. By adopting the scheme of the embodiment of the application, the service types of the current operation service of the terminal are distinguished, different cell directional switching decisions are adopted for different service types, and the directional switching decisions can be carried out based on the voice quality corresponding to the voice service in the voice service scene, so that the voice service interruption time delay caused by the directional switching in the related technology can be effectively reduced, the voice quality is improved, and the user experience is further improved.
Drawings
Fig. 1 is a schematic flowchart of a method for determining a handover decision according to an embodiment of the present disclosure;
fig. 2 is a schematic flow chart of handover preparation according to an embodiment of the present application;
fig. 3 is a schematic flowchart of another handover decision determining method according to an embodiment of the present application;
fig. 4 is a schematic flowchart of a cell-oriented handover method according to an embodiment of the present application;
fig. 5 is a schematic structural diagram illustrating a handover decision determining apparatus according to an embodiment of the present disclosure;
fig. 6 is a schematic diagram of a hardware component structure of a first network device according to an embodiment of the present application.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the present application will be described in further detail with reference to the accompanying drawings, the described embodiments should not be construed as limiting the present application, and all other embodiments obtained by a person of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present application.
In the following description, reference is made to "some embodiments" which describe a subset of all possible embodiments, but it is understood that "some embodiments" may be the same subset or different subsets of all possible embodiments, and that the technical solutions described in the embodiments of the present application may be combined with each other without conflict.
Before the technical solutions of the embodiments of the present application are introduced, the following description will be made on the related art.
Currently, in the field of wireless communication, an NSA scheme is adopted in a 5G network initial stage, and specifically, a control plane (4G carries control signaling) may be deployed independently by 4G, a user plane may be deployed jointly by 5G and 4G (both 5G and 4G carry user plane data), or a user plane may be deployed independently by 5G (only 5G carries user plane data). However, in practical applications, not all LTE cells are NSA cells, and when an NSA terminal accesses a non-NSA LTE cell, the NSA terminal only enjoys the user experience of a single LTE side, but cannot enjoy the advantages of a 5G network, so that the non-NSA LTE cell needs to implement directional handover to enjoy the user experience of a large capacity brought by the 5G network.
In the related technology, a public network of a 5G NSA enables a default directional switching function, and in a coverage area of the 5G NSA, when a terminal resides in a non-anchor LTE cell, in the process of performing directional switching, all services can be subjected to directional switching from the non-anchor LTE cell to the anchor LTE cell by periodically measuring the signal quality of the anchor LTE cell in the network, so as to ensure that the terminal resides in the 5G as much as possible. It should be noted that the public network referred to herein refers to a general commercial network, such as a commercial network in an urban area or a rural area.
In the related art, the directional handover decision adopted by the public network of the 5G NSA does not distinguish the service types, and generally, in order to ensure that the terminal resides in the 5G as much as possible, the signal quality threshold for directional handover to the anchor LTE is generally set to be lower, so that if the directional handover decision in the related art is adopted, the situation that the signal quality of the anchor LTE after handover is inferior to the signal quality of the non-anchor LTE before handover occurs.
In order to avoid the above situation, in the related art, when a directional handover decision is made, for a data service, when a terminal is directionally handed over from a non-anchor LTE to an anchor LTE, even if the quality of an anchor LTE signal after handover is inferior to that of a non-anchor LTE signal before handover, the terminal may still improve the data transmission rate by adding a New Radio (NR) auxiliary node. For Voice service, because a Voice Over Long-Term Evolution (VOLTE) policy is adopted, the terminal implements the Voice service on the LTE side, and at this time, when the terminal is directionally switched from the non-anchor LTE to the anchor LTE, the Voice service is still completed on the LTE side, and the NR secondary node does not transmit Voice service data. Meanwhile, in a mobile scene, if the terminal is preferentially switched to the non-anchor LTE in a coverage scene with both anchor LTE and non-anchor LTE, it can be shown that the non-anchor LTE coverage is better than the anchor LTE, and directional switching occurs in this scene, which will cause voice quality to be poor and increase voice service interruption delay.
However, for the problems of increasing the interruption delay of voice service and reducing the voice quality caused by the directional handover decision in the related art, no effective solution is available at present.
Based on this, in various embodiments of the present application, a first network device determines a service type of a currently running service of a terminal, where the service type of the currently running service includes one of a data service and a voice service; determining a corresponding cell directional switching decision based on the service type of the current operation service; different service types correspond to different cell directional switching decisions; and the cell directional switching decision corresponding to the voice service is associated with the voice quality corresponding to the voice service.
By adopting the scheme of the embodiment of the application, the service types of the current operation service of the terminal are distinguished, different cell directional switching decisions are adopted for different service types, and the directional switching decisions can be carried out based on the voice quality corresponding to the voice service in the voice service scene, so that the voice service interruption time delay caused by the directional switching in the related technology can be effectively reduced, the voice quality is improved, and the user experience is further improved.
The embodiments of the present application will be described in further detail with reference to the drawings and examples.
An embodiment of the present application provides a method for determining a handover decision, where the method is applied to a first network device, and fig. 1 is a schematic flow diagram of the method for determining a handover decision provided in the embodiment of the present application, and as shown in fig. 1, the method includes:
step 101, a first network device determines a service type of a current operation service of a terminal; the service type of the currently running service includes one of a data service and a voice service.
102, determining a corresponding cell directional switching decision based on the service type of the current operation service; different service types correspond to different cell-directed handover decisions.
Here, the cell-oriented handover decision corresponding to the voice service is associated with the voice quality corresponding to the voice service; and the cell directional switching decision is used for the terminal to perform cell directional switching, and the switched target cell supports the NSA function.
In practical applications, the first network device implementing the embodiment of the present application may be an access network device, such as a base station.
In the embodiment of the present application, cell-oriented handover may be understood as that a terminal implements migration of a radio link connection from a source cell to a target cell under the control of a radio access network, so as to ensure a seamless mobile communication service, where the target cell needs to support an NSA function. That is, the terminal accesses to the LTE cell supporting the NSA after performing the cell-directed handover, that is, the directed handover refers to the terminal finally handing over to the target cell supporting the NSA function.
In the related art, the directional switching decision adopted by the public network of 5G NSA does not distinguish the service types, but performs directional switching by adopting a uniform directional switching decision for all the service types, so that for voice services, the situations of voice service interruption and voice quality deterioration may exist, and further user experience is influenced.
Based on this, in practical application, the first network device distinguishes the service type of the current operation service of the terminal, that is, distinguishes whether the service type of the current operation service of the terminal is a data service or a voice service, and further performs a directional switching decision on the voice service based on voice quality, so that the voice service interruption delay caused by directional switching in the related technology can be effectively reduced, and the voice quality is improved.
In some embodiments, the first network device may determine the service type of the service currently operated by the terminal by:
acquiring QCI of the current operation service of the terminal;
and determining the service type of the current operation service of the terminal based on the obtained QCI.
Specifically, when the terminal resides in the non-anchor LTE cell and performs service processing within the coverage of the non-anchor LTE cell, the first network device may directly obtain a QCI of a service currently running by the terminal, where the QCI is a parameter used to identify transmission characteristics of a service data packet, and generally speaking, different bearer services correspond to one QCI value. During actual application, based on the obtained QCI and the corresponding relationship between the QCI and the service type of the bearer service, the service type of the current operation service of the terminal can be determined; wherein the service type of the currently running service comprises one of a data service and a voice service.
Here, the correspondence between the QCI and the service type of the bearer service may be stored in a mapping table, and the service type of the service currently operated by the terminal may be determined based on the obtained QCI by referring to the mapping table.
For example, if the value of the QCI of the current operation service of the terminal, which is obtained by the first network device, is 5, that is, QCI5 is obtained, the service type of the current operation service of the terminal can be determined to be a voice service by querying the mapping table; if the first network device obtains the QCI8, the service type of the currently running service of the terminal can be determined to be a data service by querying the mapping table.
In some embodiments, the first network device determines, based on the service type of the currently running service, a corresponding cell-directed handover decision, including one of:
determining a cell directional switching decision corresponding to the data service based on the anchor point priority under the condition that the service type of the current operation service is the data service;
and under the condition that the service type of the current operation service is a voice service, determining a cell directional switching decision corresponding to the voice service based on the voice quality corresponding to the voice service.
In practical application, when the determined service type of the current service operated by the terminal is a data service, a directional switching decision started by a 5G NSA public network in the related technology can be adopted, that is, a cell directional switching decision corresponding to the data service is determined based on the anchor point priority, so that the terminal can reside in 5G as much as possible. The anchor priority here includes that the anchor LTE has a higher priority than the non-anchor LTE, that is, when the terminal resides in the non-anchor LTE, the data service is directly switched to the anchor LTE to ensure that the terminal resides in 5G as much as possible, so that the terminal can enjoy the large-capacity user experience brought by 5G after performing cell-oriented switching. However, when the first network device determines that the service type of the currently-operating service of the terminal is a voice service, for example, a VOLTE voice service, the terminal does not directly switch to the anchor LTE, but determines a cell-directed handover decision corresponding to the voice service based on the voice quality corresponding to the voice service.
Based on this, in some embodiments, the first network device may determine a cell-directed handover decision corresponding to the voice service based on the voice quality corresponding to the voice service by:
configuring switching information based on the voice quality corresponding to the voice service;
and determining a cell directional switching decision corresponding to the voice service based on the switching information.
Here, the handover information includes a start measurement threshold and a handover threshold, which are used to determine a cell-directed handover decision corresponding to the voice service. In practical application, values of the start measurement threshold and the switching threshold can be specially set according to the practical situation of the voice quality corresponding to the voice service, so that the voice service quality is ensured.
In some embodiments, the first network device may determine the cell-directed handover decision corresponding to the voice service based on the handover information by:
under the condition that the switching information comprises a starting measurement threshold and a switching threshold, sending a measurement control message to the terminal; the sending of the measurement control message is associated with the measurement starting threshold, and the measurement control message is used for the terminal to measure the adjacent cell of the currently accessed cell;
receiving a measurement report message returned by the terminal; the measurement report message carries the measured signal quality of the adjacent cell; the neighboring cell communicates with a second network device;
and determining a cell directional switching decision corresponding to the voice service based on the signal quality of the adjacent cell and the switching threshold.
Here, the sending of the measurement control message is associated with the start measurement threshold, that is, whether to send the measurement control message to the terminal is determined by the start measurement threshold.
Based on this, in some embodiments, the first network device sends a measurement control message to the terminal, including:
comparing the signal quality of the cell currently accessed by the terminal with the starting measurement threshold to obtain a first comparison result;
and sending the measurement control message to the terminal under the condition that the first comparison result represents that the signal quality of the currently accessed cell is lower than the starting measurement threshold.
In actual application, a cell to which the terminal currently accesses may be a non-anchor LTE cell, and the non-anchor LTE cell is in communication with a first network device, for example, the first network device may be a first base station, and the non-anchor LTE cell is within a coverage of the first base station. The neighboring cells of the currently accessed cell may include a non-anchor LTE cell and an anchor LTE cell, and the neighboring cells of the currently accessed cell communicate with a second network device, for example, the second network device may be a second base station, and the neighboring cells of the currently accessed cell are within a coverage of the second base station.
Here, the first network device sends a measurement control message to the terminal to trigger the terminal to measure the signal quality of the neighboring cell of the currently accessed cell.
It should be noted that, when the first network device compares the signal quality of the cell currently accessed by the terminal with the measurement starting threshold to obtain a first comparison result, and represents that the signal quality of the cell currently accessed is higher than or equal to the measurement starting threshold, the first network device does not send the measurement control message to the terminal, and at this time, the terminal does not need to be triggered to measure the signal quality of the neighboring cell of the cell currently accessed.
In actual application, the first network device sends a measurement control message to the terminal, and the measurement control message can be implemented by the following method:
and sending the measurement control message to the terminal through RRC reconfiguration signaling.
In practical application, the first network device may further send a measurement Control message to the terminal through a Media Access Control (MAC) signaling or the like.
In some embodiments, the first network device may determine the cell-directed handover decision corresponding to the voice traffic based on the neighboring cell signal quality and the handover threshold by:
comparing the signal quality of the adjacent cell with the switching threshold to obtain a second comparison result;
under the condition that the second comparison result indicates that the signal quality of the adjacent cell is higher than the switching threshold, triggering and starting a cell directional switching mode corresponding to the voice service;
and under the condition that the second comparison result represents that the signal quality of the adjacent cell is lower than or equal to the switching threshold, the directional switching mode of the cell corresponding to the voice service is not triggered to be started.
In practical application, the triggering and starting the cell-oriented switching mode corresponding to the voice service includes:
and triggering and starting a cell directional switching mode corresponding to the voice service in a non-periodic mode.
Here, when the first network device does not trigger the start of the cell-directed handover mode corresponding to the voice service, the first network device monitors the progress state of the voice service, and when it is monitored that the voice service is ended and it is monitored that the service type of the currently running service of the terminal is converted from the voice service to the data service, the cell-directed handover decision corresponding to the data service determined based on the anchor priority is used to trigger the terminal to perform cell-directed handover, that is, the terminal is triggered to be directionally handed over to a target cell supporting the NSA function, for example, the terminal is triggered to be directionally handed over to an anchor LTE cell.
It should be noted that, when the terminal performs the voice service, the priority of the handover based on the voice quality is higher than the priority of the handover based on the anchor point.
In some embodiments, the method further comprises:
after the cell directional switching mode corresponding to the voice service is triggered and started, sending a cell directional switching instruction to the terminal; wherein,
the cell directional switching instruction is used for indicating the terminal to switch directionally to the target cell; the target cell is a cell satisfying a handover condition among the adjacent cells.
Here, the target cell supports the NSA function; a cell of the neighbouring cells which fulfils the handover conditions can be understood as a cell of the neighbouring cells which fulfils the neighbouring cell measurement event. In the embodiment of the application, the first network device provides access service for the terminal before cell directional switching, and the second network device provides access service for the terminal after cell directional switching.
In practical application, after triggering and starting the cell-oriented switching mode corresponding to the voice service, under the condition that the determined cell-oriented switching decision is to directionally switch the terminal to the target cell, the first network device performs switching preparation and sends a cell-oriented switching instruction to the terminal.
Here, the handover preparation mainly includes interacting with a second network device, such as a second base station, to obtain relevant information of the terminal, for example, an identifier of the terminal; the wireless capability of the terminal; the bearer of the terminal, etc.
Here, a signaling interaction process between a first network device, such as a first base station, and a second network device, such as a second base station, is shown in fig. 2, where fig. 2 is a schematic flow diagram of handover preparation provided in an embodiment of the present application, and the process of handover preparation includes the following steps:
in step 201, the first base station sends a HANDOVER REQUEST message to the second base station.
In step 202, the second base station sends a HANDOVER REQUEST acknowledgement (HANDOVER ACKNOWLEDGE) message to the first base station.
An embodiment of the present application further provides another method for determining a handover decision, where the method is applied to a first network device, and fig. 3 is a schematic flowchart of the another method for determining a handover decision provided in the embodiment of the present application, and as shown in fig. 3, the method includes:
step 301, the first network device determines a service type of a current service operated by the terminal.
Here, the service type of the currently running service includes one of a data service and a voice service.
Step 302, under the condition that the service type of the current operation service of the terminal is determined to be a voice service, configuring switching information based on the voice quality corresponding to the voice service.
Here, the handover information includes an initiation measurement threshold and a handover threshold.
Step 303, determining a cell-directed handover decision corresponding to the voice service based on the handover information.
Here, different traffic types correspond to different cell-directed handover decisions. And the cell directional switching decision is used for the terminal to perform cell directional switching, and the switched target cell supports the NSA function.
In practical application, the first network device provides access service for the terminal before cell directional switching, and the second network device provides access service for the terminal after cell directional switching.
It should be noted that the specific processing procedure of the first network device has been described in detail above, and is not described herein again.
According to the switching decision determining scheme provided by the embodiment of the application, the first network equipment determines the service type of the current operation service of the terminal; the service type of the current operation service comprises one of a data service and a voice service; determining a corresponding cell directional switching decision based on the service type of the current operation service; wherein, different service types correspond to different cell directional switching decisions; a cell directional switching decision corresponding to the voice service is associated with the voice quality corresponding to the voice service; and the cell directional switching decision is used for the terminal to perform cell directional switching, and the switched target cell supports the NSA function. By adopting the scheme of the embodiment of the application, the service types of the current operation service of the terminal are distinguished, different cell directional switching decisions are adopted for different service types, and the directional switching decisions can be carried out based on the voice quality corresponding to the voice service in the voice service scene, so that the voice service interruption time delay caused by the directional switching in the related technology can be effectively reduced, the voice quality is improved, and the user experience is further improved.
As can be seen from the above description of the embodiments of the present application, after the method for determining a handover decision provided in the embodiments of the present application is used, a terminal may be triggered to perform cell-directed handover. Fig. 4 is a schematic flow chart of a cell-oriented handover method provided in an embodiment of the present application, and as shown in fig. 4, the cell-oriented handover method includes:
step 401, the first network device determines the service type of the current operation service of the terminal.
Here, the service type of the currently running service includes one of a data service and a voice service.
Step 402, determining a cell directional switching decision corresponding to the voice service based on the voice quality corresponding to the voice service when the service type of the current operation service is the voice service.
Here, the handover information may be configured based on voice quality corresponding to the voice service; and then, based on the switching information, determining a cell directional switching decision corresponding to the voice service.
And step 403, performing handover preparation when the cell directional handover decision is that the terminal is directionally handed over to the target cell.
Step 404, after the preparation for handover of the first network device is completed, sending a cell-directed handover instruction to the terminal to trigger the terminal to execute cell-directed handover.
Here, the cell-oriented handover command is used to instruct the terminal to perform a directional handover to the target cell, and the target cell after the handover supports the NSA function.
It should be noted that the specific processing procedure of the first network device has been described in detail above, and is not described herein again.
By adopting the scheme of the embodiment of the application, the service types of the current operation service of the terminal are distinguished, different cell directional switching decisions are adopted for different service types, the directional switching decisions can be carried out on the basis of the voice quality corresponding to the voice service in the voice service scene, and after the switching preparation is finished, a cell directional switching instruction is sent to the terminal so as to trigger the terminal to execute the cell directional switching; the switched target cell supports the NSA function; therefore, the voice service interruption time delay caused by directional switching in the related technology can be effectively reduced, the voice quality is improved, and the user experience is further improved.
In order to implement the method for determining a handover decision in the embodiment of the present application, an embodiment of the present application further provides a device for determining a handover decision, where the device is disposed on a first network device, and fig. 5 is a schematic structural diagram of the device for determining a handover decision in the embodiment of the present application, and as shown in fig. 5, the device includes:
a first determining unit 51, configured to determine a service type of a currently running service of a terminal; the service type of the current operation service comprises one of a data service and a voice service;
a second determining unit 52, configured to determine a corresponding cell-oriented handover decision based on the service type of the currently running service.
In the embodiment of the application, different service types correspond to different cell directional switching decisions; a cell directional switching decision corresponding to the voice service is associated with the voice quality corresponding to the voice service; and the cell directional switching decision is used for the terminal to perform cell directional switching, and the switched target cell supports the NSA function.
In some embodiments, the first determining unit 51 is specifically configured to:
acquiring QCI of the current operation service of the terminal;
and determining the service type of the current operation service of the terminal based on the obtained QCI.
In some embodiments, the second determining unit 52 is specifically configured to:
determining a cell directional switching decision corresponding to the data service based on the anchor point priority under the condition that the service type of the current operation service is the data service;
and under the condition that the service type of the current operation service is a voice service, determining a cell directional switching decision corresponding to the voice service based on the voice quality corresponding to the voice service.
In some embodiments, the second determining unit 52 is specifically configured to:
configuring switching information based on the voice quality corresponding to the voice service;
and determining a cell directional switching decision corresponding to the voice service based on the switching information.
In some embodiments, the second determining unit 52 includes:
a sending subunit, configured to send a measurement control message to the terminal when the handover information includes a start measurement threshold and a handover threshold; the sending of the measurement control message is associated with the measurement starting threshold, and the measurement control message is used for the terminal to measure the adjacent cell of the currently accessed cell;
a receiving subunit, configured to receive a measurement report message returned by the terminal; the measurement report message carries the measured signal quality of the adjacent cell; the neighboring cell communicates with a second network device;
and the determining subunit is configured to determine, based on the signal quality of the neighboring cell and the handover threshold, a cell-oriented handover decision corresponding to the voice service.
In some embodiments, the sending subunit is specifically configured to:
comparing the signal quality of the cell currently accessed by the terminal with the starting measurement threshold to obtain a first comparison result;
and sending the measurement control message to the terminal under the condition that the first comparison result represents that the signal quality of the currently accessed cell is lower than the starting measurement threshold.
In some embodiments, the sending subunit is specifically configured to:
and sending the measurement control message to the terminal through RRC reconfiguration signaling.
In some embodiments, the determining subunit is specifically configured to:
comparing the signal quality of the adjacent cell with the switching threshold to obtain a second comparison result;
under the condition that the second comparison result represents that the signal quality of the adjacent cell is higher than the switching threshold, triggering and starting a cell directional switching mode corresponding to the voice service;
and under the condition that the second comparison result indicates that the signal quality of the adjacent cell is lower than or equal to the switching threshold, the directional switching mode of the cell corresponding to the voice service is not triggered and started.
In some embodiments, the determining subunit is specifically configured to:
and triggering and starting a cell directional switching mode corresponding to the voice service in a non-periodic mode.
In some embodiments, the apparatus further comprises:
a sending unit 53, configured to send a cell-specific handover instruction to the terminal after the second determining unit 52 triggers and starts a cell-specific handover mode corresponding to the voice service; wherein,
the cell directional switching instruction is used for indicating the terminal to switch to the target cell in a directional manner; the target cell is a cell which meets the switching condition in the adjacent cells.
In practical application, the first network device provides access service for the terminal before cell directional switching, and the second network device provides access service for the terminal after cell directional switching.
Here, in practical applications, the first determining unit 51 and the second determining unit 52 may be implemented by a processor in the handover decision determining device; the sending unit 53 may be implemented by a communication interface in the handover decision determining means.
It should be noted that, when determining the handover decision, the handover decision determining apparatus provided in the above embodiment is only illustrated by dividing the program modules, and in practical applications, the above processing may be distributed to different program modules according to needs, that is, the internal structure of the apparatus is divided into different program modules to complete all or part of the above-described processing. In addition, the embodiment of the handover decision determining apparatus and the embodiment of the handover decision determining method provided in the above embodiments belong to the same concept, and specific implementation processes thereof are detailed in the method embodiments and are not described herein again.
Based on the implementation of the composition structure of the program module, and in order to implement the method for determining a handover decision in the embodiment of the present application, an embodiment of the present application further provides a first network device, and as shown in fig. 6, fig. 6 is a schematic diagram of a hardware composition structure of the first network device provided in the embodiment of the present application, where the first network device 60 includes:
a communication interface 61 capable of performing information interaction with a terminal;
and the processor 62 is connected with the communication interface 61 to realize information interaction with the terminal, and is used for executing the method provided by one or more technical solutions of the first network device side when running the computer program. And the computer program is stored on the memory 63.
Specifically, the processor 62 is configured to determine a service type of a service currently operated by the terminal; the service type of the current operation service comprises one of a data service and a voice service; determining a corresponding cell directional switching decision based on the service type of the current operation service; wherein,
different service types correspond to different cell directional switching decisions; a cell directional switching decision corresponding to the voice service is associated with the voice quality corresponding to the voice service; and the cell directional switching decision is used for the terminal to perform cell directional switching, and the switched target cell supports the NSA function.
In practical applications, the processor 62 is specifically configured to:
acquiring QCI of the current operation service of the terminal;
and determining the service type of the current operation service of the terminal based on the obtained QCI.
The processor 62 is further specifically configured to one of:
determining a cell directional switching decision corresponding to the data service based on the anchor point priority under the condition that the service type of the current operation service is the data service;
and under the condition that the service type of the current operation service is a voice service, determining a cell directional switching decision corresponding to the voice service based on the voice quality corresponding to the voice service.
In some embodiments, the processor 62 is specifically configured to:
configuring switching information based on the voice quality corresponding to the voice service;
and determining a cell directional switching decision corresponding to the voice service based on the switching information.
In some embodiments, the processor 62 is specifically configured to:
under the condition that the switching information comprises a starting measurement threshold and a switching threshold, sending a measurement control message to the terminal; the sending of the measurement control message is associated with the measurement starting threshold, and the measurement control message is used for the terminal to measure the adjacent cell of the currently accessed cell;
receiving a measurement report message returned by the terminal; the measurement report message carries the measured signal quality of the adjacent cell; the neighboring cell communicates with a second network device;
and determining a cell directional switching decision corresponding to the voice service based on the signal quality of the adjacent cell and the switching threshold.
In some embodiments, the processor 62 is configured to compare the signal quality of the cell currently accessed by the terminal with the starting measurement threshold, so as to obtain a first comparison result;
a communication interface 61, configured to send the measurement control message to the terminal when the first comparison result indicates that the signal quality of the currently accessed cell is lower than the measurement starting threshold.
In some embodiments, the communication interface 61 is specifically configured to:
and sending the measurement control message to the terminal through RRC reconfiguration signaling.
In some embodiments, the processor 62 is specifically configured to:
comparing the signal quality of the adjacent cell with the switching threshold to obtain a second comparison result;
under the condition that the second comparison result represents that the signal quality of the adjacent cell is higher than the switching threshold, triggering and starting a cell directional switching mode corresponding to the voice service;
and under the condition that the second comparison result represents that the signal quality of the adjacent cell is lower than or equal to the switching threshold, the directional switching mode of the cell corresponding to the voice service is not triggered to be started.
In some embodiments, the processor 62 is specifically configured to:
and triggering and starting a cell directional switching mode corresponding to the voice service in a non-periodic mode.
In some embodiments, the communication interface 61 is further configured to:
after the processor 62 triggers and starts the cell-oriented switching mode corresponding to the voice service, sending a cell-oriented switching instruction to the terminal; wherein,
the cell directional switching instruction is used for indicating the terminal to switch to the target cell in a directional manner; the target cell is a cell which meets the switching condition in the adjacent cells.
In practical application, the first network device provides access service for the terminal before cell directional handover, and the second network device provides access service for the terminal after cell directional handover.
It should be noted that specific processing procedures of the communication interface 61 and the processor 62 are detailed in the method embodiment, and are not described herein again.
Of course, in practice, the various components of the first network device 60 are coupled together by a bus system 64. It will be appreciated that the bus system 64 is used to enable communications among the components. The bus system 64 includes a power bus, a control bus, and a status signal bus in addition to the data bus. For clarity of illustration, however, the various buses are labeled as bus system 64 in FIG. 6.
The memory 63 in the embodiment of the present application is used to store various types of data to support the operation of the first network device 60. Examples of such data include: any computer program for operating on the first network device 60.
The method for determining the handover decision disclosed in the embodiment of the present application may be applied to the processor 62, or may be implemented by the processor 62. The processor 62 may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the above method may be performed by instructions in the form of hardware integrated logic circuits or software in the processor 62. The Processor 62 may be a general purpose Processor, a Digital Signal Processor (DSP), or other programmable logic device, discrete gate or transistor logic device, discrete hardware components, or the like. Processor 62 may implement or perform the methods, steps, and logic blocks disclosed in the embodiments of the present application. A general purpose processor may be a microprocessor or any conventional processor or the like. The steps of the method disclosed in the embodiments of the present application may be directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software modules in the decoding processor. The software module may be located in a storage medium located in the memory 63, and the processor 62 reads information in the memory 63, and completes the steps of the foregoing determination method of the handover decision on the first network device side in combination with hardware thereof.
In an exemplary embodiment, the first network Device 60 may be implemented by one or more Application Specific Integrated Circuits (ASICs), DSPs, programmable Logic Devices (PLDs), complex Programmable Logic Devices (CPLDs), field Programmable Gate Arrays (FPGAs), general purpose processors, controllers, micro Controllers (MCUs), microprocessors (microprocessors), or other electronic components for performing the aforementioned determination method of the switching decision on the first network Device side.
It will be appreciated that the memory 63 in the embodiments of the subject application may be either volatile memory or nonvolatile memory, and may include both volatile and nonvolatile memory. The nonvolatile Memory may be a Read Only Memory (ROM), a Programmable Read Only Memory (PROM), an Erasable Programmable Read-Only Memory (EPROM), an Electrically Erasable Programmable Read-Only Memory (EEPROM), a magnetic Random Access Memory (FRAM), a Flash Memory (Flash Memory), a magnetic surface Memory, an optical Disc, or a Compact Disc Read-Only Memory (CD-ROM); the magnetic surface storage may be disk storage or tape storage.
Volatile Memory can be Random Access Memory (RAM), which acts as external cache Memory. By way of illustration and not limitation, many forms of RAM are available, such as Static Random Access Memory (SRAM), synchronous Static Random Access Memory (SSRAM), dynamic Random Access Memory (DRAM), synchronous Dynamic Random Access Memory (SDRAM), double Data Rate Synchronous Dynamic Random Access Memory (DDRSDRAM), enhanced Synchronous Dynamic Random Access Memory (ESDRAM), enhanced Synchronous Dynamic Random Access Memory (Enhanced Synchronous Dynamic Random Access Memory), synchronous linked Dynamic Random Access Memory (DRAM, synchronous Link Dynamic Random Access Memory), direct Memory (DRmb Random Access Memory). The memories described in the embodiments of the present application are intended to comprise, without being limited to, these and any other suitable types of memory.
In an exemplary embodiment, the present application further provides a storage medium, specifically a computer storage medium, which may be a computer readable storage medium, for example, a memory 63 storing a computer program, where the computer program is executable by a processor 62 of the first network device 60 to complete the foregoing steps of the method for determining the handover decision on the first network device side. The computer-readable storage medium can be memories such as FRAM, ROM, PROM, EPROM, EEPROM, flash Memory, magnetic surface Memory, optical disk or CD-ROM; or may be various devices including one or any combination of the above memories.
In the embodiments of the present application, the terms "first", "second", and the like are used for distinguishing similar objects only, and do not denote any particular order or sequence of objects, and it should be understood that "first", "second", and the like may be interchanged with other specific orders or sequences as permitted, so that the embodiments of the present application described herein may be implemented in other sequences than those illustrated or described herein.
The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims (13)

1. A method for determining handover decision, applied to a first network device, the method comprising:
determining the service type of the current operation service of the terminal; the service type of the current operation service comprises one of a data service and a voice service;
determining a corresponding cell directional switching decision based on the service type of the current operation service; wherein,
different service types correspond to different cell directional switching decisions; a cell directional switching decision corresponding to the voice service is associated with the voice quality corresponding to the voice service; the cell directional switching decision is used for the terminal to perform cell directional switching, and a switched target cell supports a non-independent Networking (NSA) function;
wherein, in the case that the service type of the currently running service is a voice service, determining a corresponding cell-directed handover decision based on the service type of the currently running service includes:
configuring switching information based on the voice quality corresponding to the voice service;
under the condition that the switching information comprises a starting measurement threshold and a switching threshold, sending a measurement control message to the terminal; the sending of the measurement control message is associated with the measurement starting threshold, and the measurement control message is used for the terminal to measure the adjacent cell of the currently accessed cell;
receiving a measurement report message returned by the terminal; the measurement report message carries the measured signal quality of the adjacent cell; the neighboring cell communicates with a second network device;
and determining a cell directional switching decision corresponding to the voice service based on the signal quality of the adjacent cell and the switching threshold.
2. The method of claim 1, wherein the determining the service type of the service currently operated by the terminal comprises:
acquiring a service Quality Class Identifier (QCI) of a current operation service of the terminal;
and determining the service type of the current operation service of the terminal based on the obtained QCI.
3. The method of claim 1, wherein the determining a corresponding cell-directed handover decision based on the traffic type of the currently running traffic comprises:
and under the condition that the service type of the current operation service is the data service, determining a cell directional switching decision corresponding to the data service based on the anchor point priority.
4. The method of claim 1, wherein the sending a measurement control message to the terminal comprises:
comparing the signal quality of the cell currently accessed by the terminal with the starting measurement threshold to obtain a first comparison result;
and sending the measurement control message to the terminal under the condition that the first comparison result represents that the signal quality of the currently accessed cell is lower than the starting measurement threshold.
5. The method of claim 1, wherein the sending the measurement control message to the terminal comprises:
and sending the measurement control message to the terminal through Radio Resource Control (RRC) reconfiguration signaling.
6. The method of claim 1, wherein the determining the cell-directed handover decision corresponding to the voice traffic based on the neighboring cell signal quality and the handover threshold comprises:
comparing the signal quality of the adjacent cell with the switching threshold to obtain a second comparison result;
under the condition that the second comparison result represents that the signal quality of the adjacent cell is higher than the switching threshold, triggering and starting a cell directional switching mode corresponding to the voice service;
and under the condition that the second comparison result represents that the signal quality of the adjacent cell is lower than or equal to the switching threshold, the directional switching mode of the cell corresponding to the voice service is not triggered to be started.
7. The method of claim 6, wherein the triggering the initiation of the cell-specific handover mode corresponding to the voice service comprises:
and triggering and starting a cell directional switching mode corresponding to the voice service in a non-periodic mode.
8. The method of claim 6, further comprising:
after the cell directional switching mode corresponding to the voice service is triggered and started, sending a cell directional switching instruction to the terminal; wherein,
the cell directional switching instruction is used for indicating the terminal to switch to the target cell in a directional manner; the target cell is a cell which meets the switching condition in the adjacent cells.
9. The method according to any of claims 1 to 8, wherein the first network device provides access service for the terminal before the cell-directed handover, and wherein the second network device provides access service for the terminal after the cell-directed handover.
10. An apparatus for determining handover decisions, the apparatus comprising:
the first determining unit is used for determining the service type of the current operation service of the terminal; the service type of the current operation service comprises one of a data service and a voice service;
a second determining unit, configured to determine a corresponding cell-oriented handover decision based on the service type of the currently running service; wherein,
different service types correspond to different cell directional switching decisions; a cell directional switching decision corresponding to the voice service is associated with the voice quality corresponding to the voice service; the cell directional switching decision is used for the terminal to perform cell directional switching, and a switched target cell supports a non-independent Networking (NSA) function;
the second determining unit is specifically configured to: under the condition that the service type of the current operation service is a voice service, configuring switching information based on voice quality corresponding to the voice service;
sending a measurement control message to the terminal under the condition that the switching information comprises a starting measurement threshold and a switching threshold; the sending of the measurement control message is associated with the measurement starting threshold, and the measurement control message is used for the terminal to measure the adjacent cell of the currently accessed cell;
receiving a measurement report message returned by the terminal; the measurement report message carries the measured signal quality of the adjacent cell; the neighboring cell communicates with a second network device;
and determining a cell directional switching decision corresponding to the voice service based on the signal quality of the adjacent cell and the switching threshold.
11. A first network device, wherein the first network device comprises:
the processor is used for determining the service type of the current operation service of the terminal; the service type of the current operation service comprises one of a data service and a voice service; determining a corresponding cell directional switching decision based on the service type of the current operation service; wherein,
different service types correspond to different cell directional switching decisions; a cell directional switching decision corresponding to the voice service is associated with the voice quality corresponding to the voice service; the cell directional switching decision is used for the terminal to perform cell directional switching, and a switched target cell supports a non-independent Networking (NSA) function;
the processor is specifically configured to: under the condition that the service type of the current operation service is a voice service, configuring switching information based on voice quality corresponding to the voice service;
under the condition that the switching information comprises a starting measurement threshold and a switching threshold, sending a measurement control message to the terminal; the sending of the measurement control message is associated with the measurement starting threshold, and the measurement control message is used for the terminal to measure the adjacent cell of the currently accessed cell;
receiving a measurement report message returned by the terminal; the measurement report message carries the measured signal quality of the adjacent cell; the neighboring cell communicates with a second network device;
and determining a cell directional switching decision corresponding to the voice service based on the signal quality of the adjacent cell and the switching threshold.
12. A first network device, wherein the first network device comprises: a processor and a memory for storing a computer program operable on the processor;
wherein the processor is configured to execute the steps of the handover decision determining method according to any one of claims 1 to 9 when running the computer program.
13. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the steps of the method for determining a handover decision of any one of claims 1 to 9.
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