CN113038561B - Cell switching method, system, device, electronic equipment and storage medium - Google Patents
Cell switching method, system, device, electronic equipment and storage medium Download PDFInfo
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- CN113038561B CN113038561B CN202110475311.3A CN202110475311A CN113038561B CN 113038561 B CN113038561 B CN 113038561B CN 202110475311 A CN202110475311 A CN 202110475311A CN 113038561 B CN113038561 B CN 113038561B
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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
- H04W36/0011—Control or signalling for completing the hand-off for data sessions of end-to-end connection
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/08—Reselecting an access point
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- 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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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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Abstract
The application relates to a cell switching method, a cell switching system, a cell switching device, an electronic device and a storage medium. The method comprises the following steps: the terminal receives a cell switching instruction issued by the base station, replaces the configuration information of the current frequency band with the configuration information of the target frequency band under the condition that the target frequency band is not matched with the current frequency band according to the configuration information of the target frequency band carried in the cell switching instruction, and executes cell switching according to the configuration information of the target frequency band. In the scheme, the terminal can determine whether to replace the configuration information of the current frequency band or not based on the configuration information of the target frequency band and the target frequency band in the cell switching instruction issued by the base station, so that the condition that the logic processing of the base station network configuration is inconsistent with the logic processing of the terminal parameter configuration is avoided, the stability of cell switching of the terminal is improved, and the user experience is optimized.
Description
Technical Field
The present disclosure relates to the field of communications technologies, and in particular, to a cell handover method, system, apparatus, electronic device, and storage medium.
Background
With the deployment of 5G in a large scale, the wireless communication terminal UE assumes a 4G and 5G dual connectivity (EUTRA-NR Dual Connectivity, ENDC) state, and in the ENDC scenario, the UE may switch between dual connectivity cells (Secondary Cell Group, SCG), i.e. between the 5G NR time division duplex TDD frequency band and the 5G NR frequency division duplex FDD frequency band.
In the prior art, when a base station initiates switching of an NR-FDD frequency band under the condition that the UE resides in the NR-TDD frequency band, configuration parameters needing to be modified are issued to the UE, the UE modifies the parameters according to the configuration parameters and protocol rules and triggers bottom layer access, so that switching of SCG is completed.
However, in the prior art, there may be a case that the UE has a parameter configuration error, which results in SCG handover failure of the UE.
Disclosure of Invention
The embodiment of the application provides a cell switching method, a system, a device, electronic equipment and a storage medium, which can avoid the situation that the processing logic of UE and the processing logic of base station parameter configuration are inconsistent in the parameter configuration process.
In a first aspect, a cell handover method is provided, the method comprising:
receiving a cell switching instruction issued by a base station; the cell switching instruction carries configuration information of a target frequency band;
If the target frequency band is not matched with the current frequency band, the configuration information of the target frequency band is replaced with the configuration information of the current frequency band;
and executing cell switching according to the configuration information of the target frequency band.
In one alternative embodiment, if the target frequency band matches the current frequency band, the cell switch instruction is not responded.
In an optional embodiment, the cell handover instruction further carries a frequency band identifier of the target frequency band, and the method further includes:
judging whether the target frequency band is matched with the current frequency band according to the frequency band identification of the target frequency band and the frequency band identification of the current frequency band, and obtaining a matching result;
if the target frequency band is not matched with the current frequency band, replacing the configuration information of the current frequency band with the configuration information of the target frequency band, wherein the method comprises the following steps:
and if the target frequency band is not matched with the current frequency band according to the matching result, replacing the configuration information of the current frequency band with the configuration information of the target frequency band.
In one optional embodiment, if the frequency band identifier of the target frequency band includes a frequency band type of the target frequency band, and the frequency band identifier of the current frequency band includes a frequency band type of the current frequency band, determining whether the target frequency band is matched with the current frequency band according to the frequency band identifier of the target frequency band and the frequency band identifier of the current frequency band includes:
If the frequency band type of the target frequency band is consistent with the frequency band type of the current frequency band, determining that the target frequency band is matched with the current frequency band;
if the frequency band type of the target frequency band is inconsistent with the frequency band type of the current frequency band, determining that the target frequency band is not matched with the current frequency band.
In one optional embodiment, if the frequency band identifier of the target frequency band includes a frequency band type and a frequency band number of the target frequency band, the frequency band identifier of the current frequency band includes a frequency band type and a frequency band number of the current frequency band; judging whether the target frequency band is matched with the current frequency band or not according to the frequency band identification of the target frequency band and the frequency band identification of the current frequency band, comprising:
if the frequency band number of the target frequency band is consistent with the frequency band number of the current frequency band, determining that the target frequency band is matched with the current frequency band;
if the frequency band number of the target frequency band is inconsistent with the frequency band number of the current frequency band and the frequency band type of the target frequency band is consistent with the frequency band type of the current frequency band, determining that the target frequency band is matched with the current frequency band;
if the frequency band type of the target frequency band is inconsistent with the frequency band type of the current frequency band, determining that the target frequency band is not matched with the current frequency band.
In one of the alternative embodiments, the method further comprises:
if the target frequency band is matched with the current frequency band, setting the value of the global variable in the matching result as a first value;
And if the target frequency band is not matched with the current frequency band, setting the value of the global variable in the matching result as a second value.
In one of the alternative embodiments, the method further comprises:
and sending a matching response message to the base station, wherein the matching response message comprises a matching result.
In a second aspect, a cell handover method is provided, the method comprising:
transmitting a cell switching instruction to a terminal; the cell switching instruction carries configuration information of a target frequency band;
and receiving a matching response message sent by the terminal, wherein the matching response message comprises a matching result used for representing whether the target frequency band is matched with the current frequency band of the terminal.
In a third aspect, a cell switching system is provided, the system including a terminal and a base station;
a terminal configured to perform the cell handover method provided in the first aspect;
a base station for performing the cell handover method provided in the second aspect.
In a fourth aspect, there is provided a cell switching apparatus, the apparatus comprising:
the receiving module is used for receiving a cell switching instruction issued by the base station; the cell switching instruction carries configuration information of a target frequency band;
the replacing module is used for replacing the configuration information of the current frequency band with the configuration information of the target frequency band if the target frequency band is not matched with the current frequency band;
And the execution module is used for executing cell switching according to the configuration information of the target frequency band.
In a fifth aspect, there is provided a cell switching apparatus, the apparatus comprising:
the sending module is used for sending a cell switching instruction to the terminal; the cell switching instruction carries configuration information of a target frequency band;
the receiving module is used for receiving a matching response message sent by the terminal, wherein the matching response message comprises a matching result used for representing whether the target frequency band is matched with the current frequency band of the terminal.
In a sixth aspect, an electronic device includes a memory and a processor, where the memory stores a computer program, where the computer program, when executed by the processor, causes the processor to perform the steps of the cell handover method according to the first aspect and the second aspect.
A seventh aspect is a computer readable storage medium having stored thereon a computer program, characterized in that the computer program when executed by a processor implements the steps of the cell handover method according to the first and second aspects.
According to the cell switching method, the system, the device, the electronic equipment and the storage medium, the terminal receives the cell switching instruction issued by the base station, and according to the configuration information of the target frequency band and the target frequency band carried in the cell switching instruction, under the condition that the target frequency band is not matched with the current frequency band, the configuration information of the target frequency band is replaced with the configuration information of the current frequency band, and cell switching is executed according to the configuration information of the target frequency band. In the scheme, the terminal can determine whether to replace the configuration information of the current frequency band or not based on the configuration information of the target frequency band and the target frequency band in the cell switching instruction issued by the base station, so that the condition that the logic processing of the base station network configuration is inconsistent with the logic processing of the terminal parameter configuration is avoided, the stability of cell switching of the terminal is improved, and the user experience is optimized.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a diagram of an application environment for a cell handover method in one embodiment;
FIG. 2 is a flow chart of a cell handover method according to one embodiment;
FIG. 3 is a flow chart of a method of cell handover in one embodiment;
FIG. 4 is a flow chart of a method of cell handover in one embodiment;
FIG. 5 is a flow chart of a method of cell handover in one embodiment;
fig. 6 is a block diagram of a cell switching device in one embodiment;
fig. 7 is a block diagram of a cell switching device in one embodiment;
fig. 8 is a block diagram of a cell switching apparatus in one embodiment;
fig. 9 is a block diagram of a cell switching apparatus in one embodiment;
fig. 10 is a block diagram of a cell switching apparatus in one embodiment;
FIG. 11 is a schematic diagram of an electronic device in one embodiment;
FIG. 12 is a schematic diagram of a server in one embodiment.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application will be further described in detail with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the present application.
It will be understood that the terms "first," "second," and the like, as used herein, may be used to describe various elements, but these elements are not limited by these terms. These terms are only used to distinguish one element from another element. For example, a first client may be referred to as a second client, and similarly, a second client may be referred to as a first client, without departing from the scope of the present application. Both the first client and the second client are clients, but they are not the same client.
For a wireless communication terminal device, with the increase of a 5G coverage area, a terminal generates a switching operation of a dual connectivity cell (Secondary Cell Group, SCG) based on a 4G and 5G dual connectivity state (EUTRA-NR Dual Connectivity, ENDC), for example, the terminal has a scene of switching from a Time Division Duplex (TDD) frequency band to a Frequency Division Duplex (FDD) frequency band. When the terminal can switch to the FDD frequency band, the base station initiates the switching of the FDD frequency band to the terminal, firstly, the base station sends a command for releasing the configuration parameters to the terminal, and after receiving the response of the terminal, the base station sends the configuration parameters to the terminal according to the protocol specification so that the terminal triggers the bottom layer access according to the configuration parameters, thereby completing the SCG cell switching of the terminal.
In the process of configuring parameters, for the existing network coverage of LTE and NR, according to the current 38.331 protocol, only part of configuration parameters in the protocol belong to modifiable parameters, that is, when cell switching is performed, the base station only modifies the authority of the configuration parameters in the terminal. If the base station configures the signal parameter SRS of 1t4R on the N78 frequency band, but when the network is switched to the N1 frequency band, only the codebook of the SRS is configured, and the signal parameter tx switch of the SRS is not configured. The terminal may consider that the signal parameter tx switch of the SRS is configured by default in N1, resulting in a configuration error. To solve this problem, the present embodiment provides a cell handover method, which is specifically described by the following embodiments.
Fig. 1 is a schematic diagram of an application environment of a cell handover method according to an embodiment. As shown in fig. 1, fig. 1 shows a schematic structure of a cell switching system, where the cell switching system includes a terminal 101 and a base station 102, and the terminal 101 may communicate with the base station 102 through a network protocol to implement a dual cell switching function of the terminal. It should be noted that, for the existing network coverage of LTE and NR, due to the difference of deployment environments, operators follow protocols but have respective characteristics for the current network parameter configuration, and the environment discussed in this embodiment is that when both the base station and the terminal are in the dual-connection scenario of lte+tdd NR, the terminal sends an instruction for switching TDD NR cells to the terminal when the network configuration signal of the FDD NR cell is good enough, so that cell switching of the terminal is achieved based on the cell switching method provided in this embodiment.
Fig. 2 is a flow chart of a cell handover method in one embodiment. The cell switching method in this embodiment will be described by taking a terminal operating in fig. 1 as an example. As shown in fig. 2, the cell switching method includes steps 201 to 203.
Step 201, receiving a cell switching instruction issued by a base station; the cell switching instruction carries configuration information of the target frequency band.
The target frequency band refers to a frequency band to which the terminal needs to be switched, for example, in a scene of a dual-connection cell, the current frequency band of the terminal can be a time division duplex TDD NR frequency band, and then the target frequency band can be a frequency division duplex FDD NR frequency band; configuration information is protocol parameter information corresponding to each frequency band.
In this embodiment, the terminal receives a cell switching instruction issued by the base station, and optionally, the terminal may obtain, based on a preset parsing protocol, the target frequency band and configuration information of the target frequency band carried by the cell switching instruction from the cell switching instruction. Alternatively, the cell handover instruction issued by the base station may be an instruction issued by the base station after determining that the network quality of the terminal satisfies a certain condition. This embodiment is not limited thereto.
Step 202, if the target frequency band is not matched with the current frequency band, replacing the configuration information of the current frequency band with the configuration information of the target frequency band.
Whether the target frequency band is matched with the current frequency band can be determined in various modes. By way of example, the terminal can determine whether the target frequency band is matched with the current frequency band or not through the frequency band identification of the target frequency band and the frequency band identification of the current frequency band; or the terminal can determine whether the target frequency band is matched with the current frequency band or not through the configuration parameters of the target frequency band and the configuration parameters of the current frequency band.
In this embodiment, the terminal determines, by using any one of the foregoing matching methods, that the target frequency band is not matched with the current frequency band, for example, the frequency band identifier of the target frequency band is inconsistent with the frequency band identifier of the current frequency band, or the configuration parameter of the target frequency band is inconsistent with the configuration parameter of the current frequency band, and then the configuration parameter corresponding to the frequency band needs to be modified.
Step 203, executing cell switching according to the configuration information of the target frequency band.
In this embodiment, after determining that the target frequency band is not matched with the current frequency band, the terminal replaces the configuration information of the current frequency band with the configuration information of the target frequency band, that is, updates the configuration information to the configuration information of the target frequency band, thereby implementing frequency band switching, that is, cell switching operation.
In the cell switching method in this embodiment, a terminal receives a cell switching instruction issued by a base station, and performs cell switching according to configuration information of a target frequency band carried in the cell switching instruction, and under the condition that the target frequency band is not matched with a current frequency band, the configuration information of the target frequency band is replaced with the configuration information of the current frequency band, and the configuration information of the target frequency band is used for performing cell switching. In the scheme, the terminal can directly replace the configuration information of the current frequency band by using the configuration information of the target frequency band under the condition that the target frequency band is not matched with the current frequency band based on the configuration information of the target frequency band in the cell switching instruction issued by the base station, so that the condition that the logic processing of the network configuration of the base station is inconsistent with the logic processing of the terminal parameter configuration caused by modifying part of parameters of the current frequency band is avoided, and the stability of cell switching of the terminal is improved.
In another alternative embodiment, if the target frequency band matches the current frequency band, the cell switch command is not responded.
In this embodiment, the terminal determines, by using the matching method in any one of the above forms in step 202, that the target frequency band matches the current frequency band, that is, the frequency band identifier of the target frequency band is consistent with the frequency band identifier of the current frequency band, or the configuration parameter of the target frequency band is consistent with the configuration parameter of the current frequency band, which indicates that the terminal has been accessed into the target frequency band, and does not need to perform cell switching again, and at this time, the terminal does not respond to the cell switching instruction.
In this embodiment, under the condition that the target frequency band is determined to be matched with the current frequency band, the terminal does not respond to the cell switching instruction issued by the base station, and the current configuration information is still kept unchanged, so that the problem of inconsistent processing logic of the base station and the terminal configuration parameters caused by modification of the configuration parameters of the terminal is avoided.
Further, after the terminal acquires the target frequency band, the terminal can execute matching operation of the target frequency band and the target frequency band according to the current frequency band. In an alternative embodiment, as shown in fig. 3, the cell handover instruction further carries a frequency band identifier of the target frequency band, and the method further includes:
step 301, judging whether the target frequency band is matched with the current frequency band according to the frequency band identification of the target frequency band and the frequency band identification of the current frequency band, and obtaining a matching result.
The frequency band identifier may include information such as a frequency band number, a frequency band type, and a frequency band attribute corresponding to the frequency band.
In this embodiment, optionally, the terminal may determine whether the target frequency band is matched with the current frequency band according to the frequency band number of the target frequency band and the frequency band number of the current frequency band; or the terminal can determine whether the target frequency band is matched with the current frequency band according to the frequency band type of the target frequency band and the frequency band type of the current frequency band; or the terminal can determine whether the target frequency band is matched with the current frequency band according to the frequency band attribute of the target frequency band and the frequency band attribute of the current frequency band; or the terminal can determine whether the target frequency band is matched with the current frequency band or not through the configuration parameters of the target frequency band and the configuration parameters of the current frequency band, and a matching result is obtained.
Step 302, if it is determined that the target frequency band is not matched with the current frequency band according to the matching result, the configuration information of the target frequency band is replaced with the configuration information of the current frequency band.
In this embodiment, the above example in step 301 is used to illustrate that if the frequency band number of the target frequency band is inconsistent with the frequency band number of the current frequency band, the terminal determines that the target frequency band is not matched with the current frequency band; if the frequency band type of the target frequency band is inconsistent with the frequency band type of the current frequency band, the terminal determines that the target frequency band is not matched with the current frequency band; if the frequency band attribute of the target frequency band is inconsistent with the frequency band attribute of the current frequency band, the terminal determines that the target frequency band is not matched with the current frequency band; if the configuration parameters of the target frequency band are inconsistent with those of the current frequency band, the terminal determines that the target frequency band is not matched with the current frequency band. If the matching result is determined to be unmatched, the terminal may use the configuration information of the target frequency band by deleting the configuration information of the current frequency band, which is not limited in this embodiment.
In this embodiment, under the condition that the target frequency band is not matched with the current frequency band, the configuration information of the target frequency band is replaced with the configuration information of the current frequency band, so that the situation that the logic processing of the base station network configuration is inconsistent with the logic processing of the terminal parameter configuration is avoided, and the stability of terminal cell switching is improved. And according to the frequency band identification of the target frequency band and the frequency band identification of the current frequency band, whether the target frequency band is matched with the current frequency band or not can be determined, and the judgment logic is simple and easy to realize.
The frequency band identifier may include a plurality of information, and different frequency band identifiers may use different judging logic, in one optional embodiment, if the frequency band identifier of the target frequency band includes a frequency band type of the target frequency band, the frequency band identifier of the current frequency band includes a frequency band type of the current frequency band, and judging whether the target frequency band is matched with the current frequency band according to the frequency band identifier of the target frequency band and the frequency band identifier of the current frequency band, including:
if the frequency band type of the target frequency band is consistent with the frequency band type of the current frequency band, determining that the target frequency band is matched with the current frequency band; if the frequency band type of the target frequency band is inconsistent with the frequency band type of the current frequency band, determining that the target frequency band is not matched with the current frequency band.
In this embodiment, for example, if the frequency band type of the target frequency band is FDD NR and the frequency band type of the current frequency band is TDD NR, in this case, the terminal determines that the frequency band type of the target frequency band is inconsistent with the frequency band type of the current frequency band, that is, determines that the target frequency band is not matched with the current frequency band; if the frequency band type of the target frequency band is FDD NR and the frequency band type of the current frequency band is FDD NR, in this case, the terminal determines that the frequency band type of the target frequency band is consistent with the frequency band type of the current frequency band, that is, determines that the target frequency band matches with the current frequency band, which is not limited in this embodiment.
In this embodiment, the terminal may directly determine whether the frequency band type of the current frequency band and the frequency band type of the target frequency band are matched, which has a simple process, reduces data processing resources, and improves cell switching efficiency.
In another alternative embodiment, if the frequency band identifier of the target frequency band includes the frequency band type and the frequency band number of the target frequency band, the frequency band identifier of the current frequency band includes the frequency band type and the frequency band number of the current frequency band; judging whether the target frequency band is matched with the current frequency band or not according to the frequency band identification of the target frequency band and the frequency band identification of the current frequency band, comprising:
if the frequency band number of the target frequency band is consistent with the frequency band number of the current frequency band, determining that the target frequency band is matched with the current frequency band; if the frequency band number of the target frequency band is inconsistent with the frequency band number of the current frequency band and the frequency band type of the target frequency band is consistent with the frequency band type of the current frequency band, determining that the target frequency band is matched with the current frequency band; if the frequency band type of the target frequency band is inconsistent with the frequency band type of the current frequency band, determining that the target frequency band is not matched with the current frequency band.
In this embodiment, for example, if the frequency band number of the target frequency band is N78 and the frequency band number of the current frequency band is N78, in this case, the terminal determines that the frequency band number of the target frequency band is identical to the frequency band number of the current frequency band, that is, determines that the target frequency band matches the current frequency band. If the frequency band number of the target frequency band is N78 and the frequency band number of the current frequency band is N79, in this case, the terminal determines that the frequency band number of the target frequency band is inconsistent with the frequency band number of the current frequency band, in this case, the terminal may further determine whether the target frequency band is matched with the current frequency band by using the frequency band type of the target frequency band and the frequency band type of the current frequency band, where the frequency band type of the target frequency band is FDD NR and the frequency band type of the current frequency band is FDD NR, in this case, the terminal determines that the frequency band type of the target frequency band is consistent with the frequency band type of the current frequency band, that is, determines that the target frequency band is matched with the current frequency band. In addition, if the frequency band type of the target frequency band is FDD NR and the frequency band type of the current frequency band is TDD NR, in this case, the terminal determines that the frequency band type of the target frequency band is inconsistent with the frequency band type of the current frequency band, that is, determines that the target frequency band is not matched with the current frequency band, which is not limited in this embodiment.
In this embodiment, the terminal may determine whether the current frequency band number, the frequency band type, the frequency band number of the target frequency band, and the frequency band type are matched, and perform frequency band matching operation based on two dimensions, so that accuracy of frequency band matching is improved, and success rate of cell switching is improved.
In order to make the information of the terminal and the base station symmetrical, a global variable may be set to refer to the matching result, and in one optional embodiment, the method further includes:
if the target frequency band is matched with the current frequency band, setting the value of the global variable in the matching result as a first value; and if the target frequency band is not matched with the current frequency band, setting the value of the global variable in the matching result as a second value.
As an example, the global variable may be a boolean type variable, for example, the terminal may set a boolean type global variable freq_type_change to refer to a matching result, i.e., whether the frequency band type of the terminal is changed based on the global variable.
In this embodiment, optionally, in the case where it is determined that the target frequency band matches the current frequency band, the value of the global variable in the matching result is set to a first value, where the first value may be "false" or "0" to indicate that the frequency band of the terminal is unchanged, and the configuration parameters of the frequency band remain unchanged currently; if it is determined that the target frequency band does not match the current frequency band, setting a value of a global variable in the matching result to be a second value, where the second value may be "true" or "1" for example, to indicate that the frequency band of the terminal changes, and deleting the current configuration parameter to use the configuration parameter of the target frequency band.
Optionally, in one embodiment, the terminal sends a matching response message to the base station, where the matching response message includes a matching result. The matching result comprises a global variable used for referring to the matching result.
In this embodiment, the terminal sends a matching response message including a global variable to the base station, where in the case where the global variable is a second value, that is, the global variable is "true" or "1", the terminal updates and replaces configuration information according to the received parameter configuration information of the target frequency band, and when the base station determines that the global variable is the second value, that is, the global variable freq_type_change is "true" or "1", the base station does not need to initiate parameter configuration before releasing the air interface message indication, so that the interaction cost between the base station and the terminal is reduced.
In this embodiment, the global variable refers to the matching result, so that the terminal and the base station can determine whether the terminal needs to switch cells and whether the configuration parameters need to be updated at the same time, thereby reducing interaction between the base station and the air interface message of the terminal, and completing the switching action more quickly.
Fig. 4 is a flow chart of a cell handover method in one embodiment. The cell switching method in this embodiment will be described taking the base station operating in fig. 1 as an example. As shown in fig. 4, the cell switching method includes steps 401 to 402.
Step 401, sending a cell switching instruction to a terminal; the cell switching instruction carries configuration information of the target frequency band.
In this embodiment, optionally, the base station may send a network quality measurement instruction to the terminal in advance, receive a network quality measurement result returned by the terminal, and trigger the base station to issue a cell switching instruction to the terminal when the network quality measurement result of the terminal meets a quality condition, for example, when the network quality measurement value of the terminal is greater than a quality threshold, where the cell switching instruction carries configuration information of a target frequency band and a target frequency band, and the target frequency band refers to a frequency band to which the terminal needs to be switched, and this embodiment is not limited.
The matching result comprises a global variable used for referring to the matching result. The base station may determine whether the current frequency band of the terminal changes according to the matching result or a global variable used for referring to the matching result, for example, if the base station determines that the value of the global variable in the matching result is a first value "false" or "0", the base station determines that the frequency band of the terminal does not change, and the configuration parameters of the frequency band remain unchanged at present; if the base station determines that the value of the global variable in the matching result is a second value of true or 1, the base station determines that the frequency band of the terminal changes, and then the base station uses the configuration parameters of the target frequency band.
According to the cell switching method, the base station sends the cell switching instruction to the terminal, so that the terminal determines whether the current frequency band is matched according to the configuration information of the target frequency band and the target frequency band in the cell switching instruction, and accordingly a matching response message carrying a matching result sent by the terminal is received. In the scheme, the base station issues the cell switching instruction to the terminal, so that the terminal can determine whether to replace the configuration information of the current frequency band based on the configuration information of the target frequency band, the situation that the logic processing of the base station network configuration is inconsistent with the logic processing of the terminal parameter configuration is avoided, and the stability of cell switching of the terminal is improved. Compared with the prior art, the embodiment of the application avoids that the base station in the prior art needs to firstly send the instruction of releasing part of configuration parameters to the terminal and then send the specific content information of the configuration parameters so as to enable the terminal to carry out repeated interactive operation of parameter configuration and cell switching.
In order to better illustrate the above cell switching method, as shown in fig. 5, this embodiment describes a cell switching method from the point of interaction between a terminal and a base station, and specifically includes:
102, judging whether the target frequency band is matched with the current frequency band according to the frequency band identification of the target frequency band and the frequency band identification of the current frequency band, and obtaining a matching result;
step 103, if the target frequency band is matched with the current frequency band, setting the value of the global variable in the matching result as a first value;
104, if the target frequency band is not matched with the current frequency band, setting the value of the global variable in the matching result as a second value;
step 105, if the value of the global variable in the matching result is set to be the second value, replacing the configuration information of the current frequency band with the configuration information of the target frequency band;
and step 106, sending a matching response message to the base station, wherein the matching response message comprises a matching result.
In this embodiment, the terminal may determine whether to replace the configuration information of the current frequency band based on the configuration information of the target frequency band in the cell switching instruction issued by the base station, so as to avoid the situation that the logic processing of the network configuration of the base station is inconsistent with the logic processing of the parameter configuration of the terminal, improve the stability of cell switching of the terminal, optimize the user experience, and the base station may learn the parameter configuration situation of the terminal based on the matching response message returned by the terminal, thereby reducing the interaction between the base station and the air interface message of the terminal, and completing the switching action more quickly.
It should be understood that, although the steps in the flowcharts of fig. 2-5 are shown in order as indicated by the arrows, these steps are not necessarily performed in order as indicated by the arrows. The steps are not strictly limited to the order of execution unless explicitly recited herein, and the steps may be executed in other orders. Moreover, at least some of the steps in fig. 2-5 may include multiple sub-steps or stages that are not necessarily performed at the same time, but may be performed at different times, nor do the order in which the sub-steps or stages are performed necessarily occur sequentially, but may be performed alternately or alternately with at least a portion of the sub-steps or stages of other steps or steps.
Fig. 6 is a block diagram of a cell switching apparatus according to an embodiment. As shown in fig. 6, the cell switching device includes a receiving module 01, a replacing module 02, and an executing module 03, where:
a receiving module 01, configured to receive a cell handover instruction issued by a base station; configuration information of a target frequency band in a cell switching instruction;
a replacing module 02, configured to replace the configuration information of the current frequency band with the configuration information of the target frequency band if the target frequency band is not matched with the current frequency band;
And the execution module 03 is configured to execute cell handover according to the configuration information of the target frequency band.
In an alternative embodiment, the execution module 03 is further configured to not respond to the cell handover instruction if the target frequency band matches the current frequency band.
In an alternative embodiment, as shown in fig. 7, the cell switching instruction further carries a frequency band identifier of the target frequency band, and the cell switching device further includes a judging module 04;
the judging module 04 is used for judging whether the target frequency band is matched with the current frequency band according to the frequency band identification of the target frequency band and the frequency band identification of the current frequency band, so as to obtain a matching result;
and the replacing module 02 is further configured to replace the configuration information of the current frequency band with the configuration information of the target frequency band if the target frequency band is determined to be not matched with the current frequency band according to the matching result.
In one optional embodiment, if the frequency band identifier of the target frequency band includes a frequency band type of the target frequency band, the frequency band identifier of the current frequency band includes a frequency band type of the current frequency band;
the judging module 04 is further configured to determine that the target frequency band matches the current frequency band if the frequency band type of the target frequency band is consistent with the frequency band type of the current frequency band; if the frequency band type of the target frequency band is inconsistent with the frequency band type of the current frequency band, determining that the target frequency band is not matched with the current frequency band.
In one optional embodiment, if the frequency band identifier of the target frequency band includes a frequency band type and a frequency band number of the target frequency band, the frequency band identifier of the current frequency band includes a frequency band type and a frequency band number of the current frequency band;
the judging module 04 is further configured to determine that the target frequency band matches the current frequency band if the frequency band number of the target frequency band matches the frequency band number of the current frequency band; if the frequency band number of the target frequency band is inconsistent with the frequency band number of the current frequency band and the frequency band type of the target frequency band is consistent with the frequency band type of the current frequency band, determining that the target frequency band is matched with the current frequency band; if the frequency band type of the target frequency band is inconsistent with the frequency band type of the current frequency band, determining that the target frequency band is not matched with the current frequency band.
In one alternative embodiment, as shown in fig. 8, the cell switching device further includes an assignment module 05;
the assignment module 05 is configured to set a value of a global variable in a matching result to a first value if the target frequency band is matched with the current frequency band; and if the target frequency band is not matched with the current frequency band, setting the value of the global variable in the matching result as a second value.
In one alternative embodiment, as shown in fig. 9, the cell switching device further includes a sending module 06;
And the sending module 06 is configured to send a matching response message to the base station, where the matching response message includes a matching result.
Fig. 10 is a block diagram of a cell switching apparatus according to another embodiment. As shown in fig. 10, the cell switching apparatus includes a transmitting module 11 and a receiving module 12, wherein:
a sending module 11, configured to send a cell handover instruction to a terminal; the cell switching instruction carries configuration information of a target frequency band;
the receiving module 12 is configured to receive a matching response message sent by the terminal, where the matching response message includes a matching result for indicating whether the target frequency band matches the current frequency band of the terminal.
The above-mentioned division of the respective modules in the cell switching device is merely for illustration, and in other embodiments, the cell switching device may be divided into different modules as needed to complete all or part of the functions of the cell switching device.
For specific limitations of the cell switching device, reference may be made to the above limitation of the cell switching method, and no further description is given here. The above-described respective modules in the cell switching apparatus may be implemented in whole or in part by software, hardware, and a combination thereof. The above modules may be embedded in hardware or may be independent of a processor in the computer device, or may be stored in software in a memory in the computer device, so that the processor may call and execute operations corresponding to the above modules.
Fig. 11 is a schematic diagram of an internal structure of an electronic device in one embodiment. As shown in fig. 11, the electronic device includes a processor and a memory connected through a system bus. Wherein the processor is configured to provide computing and control capabilities to support operation of the entire electronic device. The memory may include a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system and a computer program. The computer program is executable by a processor for implementing a cell handover method as provided in the following embodiments. The internal memory provides a cached operating environment for operating system computer programs in the non-volatile storage medium. The electronic device may be any terminal device such as a mobile phone, a tablet computer, a PDA (Personal Digital Assistant ), a POS (Point of Sales), a car-mounted computer, and a wearable device.
Fig. 12 is a schematic diagram of an internal structure of a base station in one embodiment. As shown in fig. 12, the server includes a processor and a memory connected through a system bus. Wherein the processor is configured to provide computing and control capabilities to support the operation of the entire server. The memory may include a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system and a computer program. The computer program is executable by a processor for implementing a cell handover method as provided in the following embodiments. The internal memory provides a cached operating environment for operating system computer programs in the non-volatile storage medium. The server may be implemented as a stand-alone server or as a server cluster composed of a plurality of servers. It will be appreciated by those skilled in the art that the structure shown in fig. 12 is merely a block diagram of a portion of the structure associated with the present application and is not limiting of the server to which the present application is applied, and that a particular server may include more or fewer components than shown, or may combine some of the components, or have a different arrangement of components.
The implementation of each module in the cell switching apparatus provided in the embodiments of the present application may be in the form of a computer program. The computer program may run on a terminal or a server. Program modules of the computer program may be stored in the memory of the electronic device. Which when executed by a processor, performs the steps of the methods described in the embodiments of the present application.
Embodiments of the present application also provide a computer-readable storage medium. One or more non-transitory computer-readable storage media containing computer-executable instructions that, when executed by one or more processors, cause the processors to perform steps of a cell handover method.
A computer program product comprising instructions which, when run on a computer, cause the computer to perform a cell handover method.
Any reference to memory, storage, database, or other medium used herein may include non-volatile and/or volatile memory. The nonvolatile memory can include Read Only Memory (ROM), programmable ROM (PROM), electrically Programmable ROM (EPROM), electrically Erasable Programmable ROM (EEPROM), or flash memory. Volatile memory can include Random Access Memory (RAM), which acts as external cache memory. By way of illustration and not limitation, RAM is available in a variety of forms such as Static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate SDRAM (DDR SDRAM), enhanced SDRAM (ESDRAM), synchronous Link DRAM (SLDRAM), memory bus direct RAM (RDRAM), direct memory bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM).
The above examples only represent a few embodiments of the present application, which are described in more detail and are not to be construed as limiting the scope of the present application. It should be noted that it would be apparent to those skilled in the art that various modifications and improvements could be made without departing from the spirit of the present application, which would be within the scope of the present application. Accordingly, the scope of protection of the present application is to be determined by the claims appended hereto.
Claims (10)
1. A method of cell handover, the method being applied to handover of a dual connectivity cell SCG, the method comprising:
receiving a cell switching instruction issued by a base station; the cell switching instruction carries a frequency band identifier of a target frequency band and configuration information of the target frequency band, wherein the configuration information of the target frequency band comprises protocol parameter information corresponding to the target frequency band; the frequency band identification of the target frequency band comprises a frequency band number, a frequency band type and/or a frequency band attribute corresponding to the target frequency band;
judging whether the target frequency band is matched with the current frequency band according to the frequency band identification of the target frequency band and the frequency band identification of the current frequency band, and obtaining a matching result;
If the target frequency band is not matched with the current frequency band according to the matching result, replacing the configuration information of the current frequency band with the configuration information of the target frequency band;
executing cell switching according to the configuration information of the target frequency band;
if the target frequency band is matched with the current frequency band, not responding to the cell switching instruction;
sending a matching response message to the base station, wherein the matching response message comprises the matching result; if the target frequency band is matched with the current frequency band, setting the value of a global variable in the matching result as a first value; and if the target frequency band is not matched with the current frequency band, setting the value of the global variable in the matching result as a second value.
2. The method of claim 1, wherein if the frequency band identifier of the target frequency band includes a frequency band type of the target frequency band, and the frequency band identifier of the current frequency band includes a frequency band type of the current frequency band, the determining whether the target frequency band is matched with the current frequency band according to the frequency band identifier of the target frequency band and the frequency band identifier of the current frequency band includes:
if the frequency band type of the target frequency band is consistent with the frequency band type of the current frequency band, determining that the target frequency band is matched with the current frequency band;
If the frequency band type of the target frequency band is inconsistent with the frequency band type of the current frequency band, determining that the target frequency band is not matched with the current frequency band; wherein the frequency band type comprises FDD NR or TDD NR.
3. The method of claim 1, wherein if the band identifier of the target band includes a band type and a band number of the target band, the band identifier of the current band includes a band type and a band number of the current band; the step of judging whether the target frequency band is matched with the current frequency band or not according to the frequency band identification of the target frequency band and the frequency band identification of the current frequency band comprises the following steps:
if the frequency band number of the target frequency band is consistent with the frequency band number of the current frequency band, determining that the target frequency band is matched with the current frequency band;
if the frequency band number of the target frequency band is inconsistent with the frequency band number of the current frequency band and the frequency band type of the target frequency band is consistent with the frequency band type of the current frequency band, determining that the target frequency band is matched with the current frequency band;
if the frequency band type of the target frequency band is inconsistent with the frequency band type of the current frequency band, determining that the target frequency band is not matched with the current frequency band; wherein the frequency band type comprises FDD NR or TDD NR.
4. The method according to claim 1, wherein the method further comprises:
if the target frequency band is matched with the current frequency band, setting the value of a global variable in the matching result as a first value;
and if the target frequency band is not matched with the current frequency band, setting the value of the global variable in the matching result as a second value.
5. A method of cell handover, the method being applied to handover of a dual connectivity cell SCG, the method comprising:
transmitting a cell switching instruction to a terminal; the cell switching instruction carries the frequency band identification of the target frequency band and the configuration information of the target frequency band, so that the terminal judges whether the target frequency band is matched with the current frequency band according to the frequency band identification of the target frequency band and the frequency band identification of the current frequency band to obtain a matching result, and when the fact that the target frequency band is not matched with the current frequency band is determined according to the matching result, the configuration information of the target frequency band is used for replacing the configuration information of the current frequency band, and cell switching is executed according to the configuration information of the target frequency band, or the cell switching instruction is not responded when the target frequency band is matched with the current frequency band, wherein the configuration information of the target frequency band comprises protocol parameter information corresponding to the target frequency band; the frequency band identification of the target frequency band comprises a frequency band number, a frequency band type and/or a frequency band attribute corresponding to the target frequency band;
Receiving a matching response message sent by the terminal, wherein the matching response message comprises a matching result used for representing whether the target frequency band is matched with the current frequency band of the terminal; if the target frequency band is matched with the current frequency band, setting the value of a global variable in the matching result as a first value; and if the target frequency band is not matched with the current frequency band, setting the value of the global variable in the matching result as a second value.
6. A cell switching system, characterized in that the system comprises a terminal and a base station;
the terminal being configured to perform the cell handover method of claims 1-4;
the base station is configured to perform the cell handover method of claim 5.
7. A cell switching device, wherein the device is applied to switching of a dual connectivity cell SCG, the device comprising:
the receiving module is used for receiving a cell switching instruction issued by the base station; the cell switching instruction carries a frequency band identifier of a target frequency band and configuration information of the target frequency band, wherein the configuration information of the target frequency band comprises protocol parameter information corresponding to the target frequency band; the frequency band identification of the target frequency band comprises a frequency band number, a frequency band type and/or a frequency band attribute corresponding to the target frequency band;
The judging module is used for judging whether the target frequency band is matched with the current frequency band according to the frequency band identification of the target frequency band and the frequency band identification of the current frequency band to obtain a matching result;
the replacing module is used for replacing the configuration information of the current frequency band with the configuration information of the target frequency band if the target frequency band is not matched with the current frequency band according to the matching result;
the execution module is used for executing cell switching according to the configuration information of the target frequency band;
the execution module is further configured to not respond to the cell handover instruction if the target frequency band matches the current frequency band;
a sending module, configured to send a matching response message to the base station, where the matching response message includes the matching result; if the target frequency band is matched with the current frequency band, setting the value of a global variable in the matching result as a first value; and if the target frequency band is not matched with the current frequency band, setting the value of the global variable in the matching result as a second value.
8. A cell switching device, wherein the device is applied to switching of a dual connectivity cell SCG, the device comprising:
The sending module is used for sending a cell switching instruction to the terminal; the cell switching instruction carries the frequency band identification of the target frequency band and the configuration information of the target frequency band, so that the terminal judges whether the target frequency band is matched with the current frequency band according to the frequency band identification of the target frequency band and the frequency band identification of the current frequency band to obtain a matching result, and when the fact that the target frequency band is not matched with the current frequency band is determined according to the matching result, the configuration information of the target frequency band is used for replacing the configuration information of the current frequency band, and cell switching is executed according to the configuration information of the target frequency band, or the cell switching instruction is not responded when the target frequency band is matched with the current frequency band, wherein the configuration information of the target frequency band comprises protocol parameter information corresponding to the target frequency band; the frequency band identification of the target frequency band comprises a frequency band number, a frequency band type and/or a frequency band attribute corresponding to the target frequency band;
the receiving module is used for receiving a matching response message sent by the terminal, wherein the matching response message comprises a matching result used for representing whether the target frequency band is matched with the current frequency band of the terminal; if the target frequency band is matched with the current frequency band, setting the value of a global variable in the matching result as a first value; and if the target frequency band is not matched with the current frequency band, setting the value of the global variable in the matching result as a second value.
9. An electronic device comprising a memory and a processor, the memory having stored therein a computer program which, when executed by the processor, causes the processor to perform the steps of the cell handover method according to any of claims 1 to 5.
10. A computer readable storage medium, on which a computer program is stored, characterized in that the computer program, when being executed by a processor, implements the steps of the cell handover method according to any of claims 1 to 5.
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| CN101516125A (en) * | 2008-02-20 | 2009-08-26 | 中兴通讯股份有限公司 | Method for allocating working frequency band in large bandwidth system and terminal access method |
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