CN113055951A - Cell switching method, base station, mobile terminal and storage medium - Google Patents
Cell switching method, base station, mobile terminal and storage medium Download PDFInfo
- Publication number
- CN113055951A CN113055951A CN201911377553.8A CN201911377553A CN113055951A CN 113055951 A CN113055951 A CN 113055951A CN 201911377553 A CN201911377553 A CN 201911377553A CN 113055951 A CN113055951 A CN 113055951A
- Authority
- CN
- China
- Prior art keywords
- cell
- mobile terminal
- signal quality
- base station
- sending
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 65
- 230000006855 networking Effects 0.000 claims abstract description 88
- 238000005259 measurement Methods 0.000 claims description 78
- 238000004590 computer program Methods 0.000 claims description 12
- 238000010586 diagram Methods 0.000 description 10
- 238000004891 communication Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 7
- 238000010276 construction Methods 0.000 description 4
- 230000009977 dual effect Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- CIWBSHSKHKDKBQ-JLAZNSOCSA-N Ascorbic acid Chemical compound OC[C@H](O)[C@H]1OC(=O)C(O)=C1O CIWBSHSKHKDKBQ-JLAZNSOCSA-N 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 230000006870 function Effects 0.000 description 3
- 238000010295 mobile communication Methods 0.000 description 3
- 230000007774 longterm Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000013439 planning Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 238000007726 management method Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 230000011664 signaling Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 230000007723 transport mechanism Effects 0.000 description 1
- 238000012384 transportation and delivery Methods 0.000 description 1
Images
Classifications
-
- 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
- H04W36/0083—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
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The application discloses a cell switching method, a base station, a mobile terminal and a storage medium. The cell switching method comprises the steps of obtaining terminal capability information of a mobile terminal accessed to a first cell, wherein the first cell is managed by a base station and supports non-independent NSA networking, judging whether the mobile terminal supports NSA networking or not according to the terminal capability information, and sending a switching instruction to the mobile terminal when the terminal capability information indicates that the mobile terminal does not support NSA networking, so that the mobile terminal is switched to a second cell adjacent to the first cell, and the second cell does not support NSA networking. Based on the technical scheme of the embodiment of the application, the base station supporting NSA networking switches the mobile terminal which does not support NSA networking to the cell which does not support NSA networking by judging whether the accessed mobile terminal supports NSA networking or not, so that the situation that the mobile terminal which does not support NSA networking occupies the resources of the base station supporting NSA networking is avoided, the load of the base station is reduced, and the user experience is improved.
Description
Technical Field
The present application relates to the field of communications technologies, and in particular, to a cell switching method, a base station, a mobile terminal, and a storage medium.
Background
In order to speed up the coverage construction of a 5G (5th-Generation, fifth-Generation mobile communication) network and reduce the construction cost at the initial stage of 5G coverage, the most common 5G networking method at present is NSA networking (Non-independent). The NSA networking adopts a dual connection mode, and a mobile terminal can be simultaneously accessed to an NR (New Radio, New air interface) base station and an LTE (Long Term Evolution) base station, wherein a 5G NR control plane is anchored to a 4G LTE, an Evolved Packet Core (EPC), an LTE Core network is used for the control plane, an NR access network is used for the data plane, and a cell managed by the base station supporting the NSA networking is called an anchor cell. Correspondingly, to access the 5G network, the mobile terminal requires support for NSA networking. However, due to the feature of NSA networking, the mobile terminal that does not support NSA may also reside in the anchor cell, and at this time, the mobile terminal that does not support NSA cannot enjoy the 5G network, and occupies the resources of the base station, thereby reducing the user experience of the base station.
Disclosure of Invention
The following is a summary of the subject matter described in detail herein. This summary is not intended to limit the scope of the claims.
In a first aspect, embodiments of the present application provide a cell switching method, a base station, a mobile terminal, and a storage medium, which can prevent a mobile terminal that does not support NSA networking from occupying resources of a base station that supports NSA networking.
In a second aspect, an embodiment of the present application further provides a cell handover method, applied to a base station, including:
acquiring terminal capability information of a mobile terminal accessed to a first cell, wherein the first cell is managed by the base station and supports non-independent NSA networking;
judging whether the mobile terminal supports NSA networking or not according to the terminal capability information;
and when the terminal capability information represents that the mobile terminal does not support NSA networking, sending a switching instruction to the mobile terminal to enable the mobile terminal to be switched to a second cell adjacent to the first cell, wherein the second cell does not support NSA networking.
In a third aspect, an embodiment of the present application further provides a cell handover method, applied to a mobile terminal, including:
sending terminal capability information to a base station of a first cell managing the access of the mobile terminal, wherein the first cell supports NSA networking;
and receiving a switching instruction sent by the base station, and switching to a second cell adjacent to the first cell, wherein the second cell does not support NSA networking.
In a fourth aspect, an embodiment of the present application further provides a base station, including: memory, processor and computer program stored on the memory and executable on the processor, characterized in that the processor implements the cell handover method of the second aspect when executing the computer program.
In a fifth aspect, an embodiment of the present application further provides a mobile terminal, which includes: memory, processor and computer program stored on the memory and executable on the processor, characterized in that the processor implements the cell handover method of the third aspect when executing the computer program.
In a sixth aspect, an embodiment of the present application further provides a computer-readable storage medium storing computer-executable instructions, where the computer-executable instructions are configured to perform the cell handover method according to the second aspect or the third aspect.
The embodiment of the application comprises the following steps: the method comprises the steps of obtaining terminal capability information of a mobile terminal accessed to a first cell, wherein the first cell is managed by a base station and supports non-independent NSA networking, judging whether the mobile terminal supports NSA networking or not according to the terminal capability information, and sending a switching instruction to the mobile terminal when the terminal capability information indicates that the mobile terminal does not support NSA networking, so that the mobile terminal is switched to a second cell adjacent to the first cell, and the second cell does not support NSA networking. Based on the technical scheme of the embodiment of the application, the base station supporting NSA networking switches the mobile terminal which does not support NSA networking to the cell which does not support NSA networking by judging whether the accessed mobile terminal supports NSA networking or not, so that the situation that the mobile terminal which does not support NSA networking occupies the resources of the base station supporting NSA networking is avoided, the effect of reducing the load of the base station is achieved, and the user experience is improved.
Additional features and advantages of the application will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by the practice of the application. The objectives and other advantages of the application may be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
Drawings
The accompanying drawings are included to provide a further understanding of the claimed subject matter and are incorporated in and constitute a part of this specification, illustrate embodiments of the subject matter and together with the description serve to explain the principles of the subject matter and not to limit the subject matter.
Fig. 1 is a connection diagram of a mobile terminal and a base station supporting NSA networking in an embodiment of the present application;
fig. 2 is a schematic diagram of a coverage architecture of a mobile terminal in the prior art according to an embodiment of the present application;
fig. 3 is a schematic diagram of a coverage architecture of a mobile terminal in a cell handover method according to an embodiment of the present application;
fig. 4 is a schematic diagram of another coverage architecture of a mobile terminal in a cell handover method according to an embodiment of the present application;
fig. 5 is a flowchart of a cell handover method applied to a base station according to an embodiment of the present application;
fig. 6 is a flowchart for sending a handover command to the mobile terminal according to an embodiment of the present application;
fig. 7 is a flowchart for acquiring signal quality of the second cell according to an embodiment of the present disclosure;
fig. 8 is a flowchart for sending a measurement instruction to the mobile terminal according to an embodiment of the present application;
fig. 9 is a flowchart of determining whether the signal quality of the second cell meets the requirement of the mobile terminal to perform access according to the embodiment of the present application;
fig. 10 is another flowchart of a cell handover method applied to a base station according to an embodiment of the present application;
fig. 11 is a flowchart of a cell handover method applied to a mobile terminal according to an embodiment of the present application;
fig. 12 is a flowchart before a handover command sent by the base station is received according to an embodiment of the present application;
fig. 13 is a schematic structural diagram of a base station according to an embodiment of the present application;
fig. 14 is a schematic structural diagram of a mobile terminal according to an embodiment of the present application.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
It should be understood that in the description of the embodiments of the present application, a plurality (or a plurality) means two or more, and more than, less than, more than, etc. are understood as excluding the present number, and more than, less than, etc. are understood as including the present number. If the description of "first", "second", etc. is used for the purpose of distinguishing technical features, it is not intended to indicate or imply relative importance or to implicitly indicate the number of indicated technical features or to implicitly indicate the precedence of the indicated technical features.
In order to speed up the coverage construction of a 5G (5th-Generation, fifth-Generation mobile communication) network and reduce the construction cost at the initial stage of 5G coverage, the most common 5G networking method at present is NSA networking (Non-independent). The NSA networking adopts a dual connection mode, and a mobile terminal can be simultaneously accessed to an NR (New Radio, New air interface) base station and an LTE (Long Term Evolution) base station, wherein a 5G NR control plane is anchored to a 4G LTE, an Evolved Packet Core (EPC), an LTE Core network is used for the control plane, an NR access network is used for the data plane, and a cell managed by the base station supporting the NSA networking is called an anchor cell. Correspondingly, to access the 5G network, the mobile terminal requires support for NSA networking. However, due to the feature of NSA networking, the mobile terminal that does not support NSA may also reside in the anchor cell, and at this time, the mobile terminal that does not support NSA cannot enjoy the 5G network, and occupies the resources of the base station, thereby reducing the user experience of the base station.
Specifically, referring to fig. 1, a connection diagram of a mobile terminal and a base station supporting NSA networking is shown, where a dotted line is a control channel of a control plane, and a solid line is a data channel of a data plane. The LTE base station supporting NSA networking is called an anchor point of signaling, a cell corresponding to the LTE base station is an anchor point cell, and correspondingly, a cell corresponding to the LET base station not supporting NSA networking is a non-anchor point cell. In the current planning, an LTE cell and an NR cell under an option3x architecture are covered in the same way, and as shown in fig. 2, an LTE cell a and an NR cell B form an NSA networking, and the NR cell B establishes a neighboring cell relationship with the LTE cell a within the coverage of the LTE cell a, so that the LTE cell a has an NSA networking capability. In addition, an overlapping area exists between an LTE cell C which does not support NSA networking and the NR cell B, LTE cell a, and a mobile terminal exists in the overlapping area, and the mobile terminal is an LTE terminal, that is, the NSA networking is not supported. In the prior art, the mobile terminal measures the signal strength of an LTE cell a and an LTE cell C, and selects a cell with a stronger signal strength for access. Therefore, the situation may occur that, because the signal strength of the LTE cell a is strong, the mobile terminal may access the LTE cell a, that is, the anchor cell, and not access the LTE cell C, but because the terminal does not support NSA networking, even if the terminal accesses the anchor cell, the terminal cannot enjoy the 5G network, but occupies the resources of the base station corresponding to the LTE cell a, and reduces the user experience of other mobile terminals supporting NSA of the LTE cell a.
In view of the foregoing problems, embodiments of the present invention provide a cell handover method, a base station, a mobile terminal, and a storage medium. Referring to fig. 3, a schematic diagram of a coverage architecture provided for an embodiment of the present invention is shown, where the system may include a first cell, an NR cell, a second cell, and a mobile terminal, where the mobile terminal is located in a coverage area of the first cell, the NR cell, and the second cell, where the first cell and the second cell are both LTE cells, a neighboring cell relationship is configured between the NR cell and the first cell, an NSA networking is formed between the first cell and the NR cell, that is, the first cell supports NSA networking, the first cell is an anchor cell, the second cell only supports LTE networks, does not support NSA networking, and is a non-anchor cell. In NSA networking, a relationship between an LTE base station in a first cell and an NR base station in an NR cell and a 4G core network may be as shown in fig. 1, that is, a control plane of the NR base station goes through the LTE core network, and a data plane goes through the NR access network.
It should be added that fig. 3 only shows the simplest system, and in fact, the mobile terminal may be covered by a plurality of first cells, a plurality of NR cells, and a plurality of second cells. Illustratively, as shown in fig. 4, the mobile terminal includes a first cell and two second cells, neither of the two second cells supports NSA networking, the first cell and the NR cell shown in fig. 4 form an NSA networking, and the mobile terminal is in the signal coverage of the first cell, the second cell a, and the second cell B. In the embodiment of the present invention, the first cell is an LTE cell supporting NSA networking and may also be referred to as an anchor cell, the second cell is an LTE cell not supporting NSA networking, and the "first" and "second" are only used for distinguishing two types of cells, and have no special meaning. It should be added that the above description is only illustrative, and there are other possible combinations of the numbers of the first cell and the second cell in practical applications.
In an embodiment of the present invention, a mobile terminal may refer to a terminal device accessing a mobile network, for example, a handheld device with a wireless communication function, including a mobile phone, a tablet, a notebook circuit, and the like, a terminal inserted into a sim card or adopting an e-sim technology, and also a computing device, a multimedia device or other processing device connected to a wireless modem, a vehicle-mounted device, a wearable device, a terminal in a 5G network, and the like. The base station is an interface device for the mobile terminal to realize a call and access to the internet, and may include, but is not limited to, macro base stations, micro base stations, indoor distributed base stations, and the like.
Referring to fig. 5, based on the coverage structure diagram in fig. 3, an embodiment of the present invention provides a cell handover method, which is applied to a base station, and includes, but is not limited to, the following steps:
step 101: acquiring terminal capability information of a mobile terminal accessed to a first cell, wherein the first cell is managed by the base station and supports non-independent NSA networking;
step 102: judging whether the mobile terminal supports NSA networking or not according to the terminal capability information;
step 103: and when the terminal capability information represents that the mobile terminal does not support NSA networking, sending a switching instruction to the mobile terminal to enable the mobile terminal to be switched to a second cell adjacent to the first cell, wherein the second cell does not support NSA networking.
Since the first cell supports NSA networking, once the mobile terminal accessing the first cell does not support NSA networking, the above problem may exist, and the mobile terminal may occupy the resource of the first cell but cannot use the 5G network. At this time, a handover command needs to be sent to the mobile terminal, so that the mobile terminal is handed over to a second cell adjacent to the first cell, and the second cell does not support NSA networking and is matched with the access capability of the mobile terminal. It can be understood that there is a case that, if the second cell also supports NSA networking, if the mobile terminal is handed over to the second cell supporting NSA networking, the second cell also has the above problem of resource occupation, so if the first cell does not have an adjacent second cell that does not support NSA networking, the mobile terminal may be selected not to be sent a handover instruction.
Specifically, the terminal Capability Information (UE Capability Information) may include an endec (E-UTRA-NR Dual Connectivity) Capability of the mobile terminal, where the endec refers to Dual Connectivity between the LTE radio access network and the 5G NR, and if the terminal has the endec Capability, it indicates that the mobile terminal supports NSA networking. The mobile terminal may actively report its terminal capability information to the base station, and the base station stores the terminal capability information in an MME (Mobility Management Entity) after receiving the terminal capability information. If the mobile terminal does not report the terminal capability information of the mobile terminal, the mobile terminal can be considered to be incapable of ENDC capability. When the mobile terminal is accessed to a first cell, a connection is established with an RRC (Radio Resource Control), at this time, the first cell acquires terminal capability information of the mobile terminal accessed to the first cell, and can learn that the mobile terminal does not have the endec capability by querying the terminal capability information of the mobile terminal to an MME, that is, the mobile terminal does not support a 5G network, so that a handover command can be sent to the mobile terminal, so that the mobile terminal is handed over to a second cell.
It can be understood by those skilled in the art that the above-mentioned handover of the mobile terminal to the second cell can be implemented by means of handover or redirection, where handover and redirection are conventional technical means in the communication field and are not described herein again. Correspondingly, the handover command sent by the base station to the mobile terminal may also be a redirection command.
The mobile terminal which does not support NSA networking is switched to the second cell, so that the mobile terminal can be prevented from occupying resources of a base station for managing the first cell, the effect of reducing the load of the base station is achieved, and the user experience is improved.
On this basis, in order to enable the mobile terminal handed over to the second cell to maintain good user experience, referring to fig. 6, in an embodiment of the present invention, the sending of the handover instruction to the mobile terminal specifically includes, but is not limited to, the following steps:
step 201: acquiring the signal quality of the second cell;
step 202: judging whether the signal quality of the second cell meets the requirement of the mobile terminal for executing access;
step 203: and when the signal quality of the second cell meets the requirement that the mobile terminal executes access, sending a switching instruction to the mobile terminal.
In this embodiment, before sending the handover command to the mobile terminal that does not support NSA, the signal quality of the second cell is obtained, and it is determined whether the signal quality of the second cell meets the requirement for the mobile terminal to perform access, so that the mobile terminal can be used normally after being accessed to the second cell, and user experience is guaranteed. It can be understood that, if it is determined that the signal quality of the second cell does not satisfy the requirement for the mobile terminal to perform access, in order to ensure the user experience, the access of the mobile terminal may be selected not to be switched, that is, the mobile terminal continues to access the first cell for use. Referring to fig. 7, in an embodiment of the present invention, acquiring the signal quality of the second cell may be implemented by:
step 301: sending a measurement instruction to the mobile terminal to enable the mobile terminal to measure the signal quality of the second cell, wherein the measurement instruction comprises a threshold value for the mobile terminal to judge the signal quality;
step 302: and obtaining a measurement result of the mobile terminal measuring the signal quality of the second cell.
Specifically, the measurement instruction may include one or more of a second cell list, a second cell measurement event, and a second cell measurement parameter, where the second cell list is used to show a second cell adjacent to the first cell and includes at least an ID of the second cell, and the second cell list may be stored in advance in the base station managing the first cell or acquired from a neighboring base station of the base station managing the first cell.
Wherein the second cell event may include:
events within the system:
event a1 Event (Event a1) -serving cell signal quality is greater than a threshold value;
event a2 Event (Event a2) -serving cell signal quality is less than a threshold value;
a3 Event (Event A3) -neighbor cell signal quality is better than serving cell signal quality;
a4 Event (Event a4) -neighbor cell signal quality is greater than a threshold value;
event a5 Event (Event a5) -serving cell signal quality is less than a first threshold while neighbor cell signal quality is greater than a second threshold for load balancing;
events of different systems:
b1 Event (Event B1) -neighbor cell signal quality is greater than a threshold value;
b2 Event (Event B2) -serving cell signal quality is less than a first threshold and neighbor cell signal quality is greater than a second threshold for measurements of the same or lower priority inter-system cells;
the threshold value is used for the mobile terminal to judge the signal quality, and the mobile terminal reports the measurement result of the signal quality of the second cell to the base station managing the first cell when the signal quality of the second cell meets the triggering condition of the event according to the event configured in the measurement instruction. The second cell measurement parameter may include information of a frequency point to be measured, a bandwidth to be measured, and one or a combination of more of Reference Signal Receiving Power (RSRP) and Reference Signal Receiving Quality (RSRQ) of a test target. The threshold value can be freely set according to actual conditions.
Based on this, referring to fig. 8, the sending of the measurement instruction to the mobile terminal in step 302 may include, but is not limited to, the following steps:
step 401: acquiring a second cell list, a second cell measurement event and a second cell measurement parameter;
step 402: and generating a measurement instruction according to the second cell list, the second cell measurement event and the second cell measurement parameter, and sending the measurement instruction to the mobile terminal.
The mobile terminal reports the measurement result of the signal quality of the second cell to the base station managing the first cell, except for a mode of judging whether the measured signal quality of the second cell meets the trigger condition of the event, the measurement result can also be in a periodic reporting mode, and the period reported by the mobile terminal can be set according to actual needs. It can be understood that the combination of the threshold trigger and the reporting period is used to control the mobile terminal to report the measurement result of the signal quality of the second cell, for example, the mobile terminal reports the measurement result of the signal quality of the second cell when the conditions of the threshold and the reporting period are met simultaneously.
Referring to fig. 9, in an embodiment of the present invention, the determining whether the signal quality of the second cell in step 202 is satisfied by the mobile terminal performing access may further include, but is not limited to, the following steps:
step 501: setting a timer for timing;
step 502: and when the signal quality of the second cell is acquired within the timing upper limit of the timer, judging whether the mobile terminal can be accessed to the second cell by using the signal quality of the second cell.
In this embodiment, the obtaining of the signal quality of the second cell within the upper timing limit of the timer may be obtaining a measurement result of the mobile terminal measuring the signal quality of the second cell within the upper timing limit of the timer. Based on this, in an embodiment of the present invention, when a measurement result that the mobile terminal measures the signal quality of the second cell is not obtained within the upper timing limit of the timer, the measurement instruction is sent to the mobile terminal, and the number of times of sending the measurement instruction to the mobile terminal is accumulated. And when the measurement result from the mobile terminal is not obtained within the upper limit of the timing, sending the measurement instruction to the mobile terminal again, so that the sending of the measurement instruction is more stable and reliable.
Meanwhile, in this embodiment, each time the base station sends a measurement instruction to the mobile terminal, the number of times of sending the measurement instruction is accumulated, on one hand, the number of times of sending the measurement instruction to the mobile terminal by the base station can be conveniently counted, and on the other hand, in order to avoid that the base station sends the measurement instruction endlessly and increase a burden, for example, the mobile terminal is disconnected from the base station, therefore, when the number of times of sending the measurement instruction to the mobile terminal exceeds a preset number, the sending of the measurement instruction to the mobile terminal is stopped, so as to ensure reasonable utilization of base station resources.
The above embodiment is applicable to both the case where the number of the second cells is only one and the case where the number of the second cells is multiple, and referring to fig. 4, it is a system architecture diagram when the number of the second cells is two in an embodiment of the present invention. Specifically, after receiving a measurement instruction from the base station, the mobile terminal measures the signal quality of each second cell, and after obtaining the measurement result of the mobile terminal on the signal quality of each second cell, the base station switches the access of the mobile terminal to the one with the best signal quality in the second cells, so as to ensure that the mobile terminal has good user experience.
In addition, the base station can also switch the access of the mobile terminal to the second cells which the mobile terminal has accessed once, and the second cells are proved to have the condition for the access of the mobile terminal because the mobile terminal has accessed one of the second cells once. The second cell that the mobile terminal accesses can be identified by adopting a marking mode. It is to be understood that when the number of the second cells exceeds two, the above-mentioned switching of the access of the mobile terminal to the second cell with the best signal quality and the switching of the access of the mobile terminal to the second cell that the mobile terminal has accessed can be combined.
In an embodiment, when the number of the second cells is multiple and the sending of the measurement instruction is controlled by setting a timing upper limit by using a timer, all measurement results of the mobile terminal measuring the signal quality of the second cell may not be obtained within the timing upper limit of the timer, the measurement instruction may be sent to the mobile terminal, and the number of times of sending the measurement instruction to the mobile terminal may be accumulated. Namely, the base station needs to obtain the measurement results of the signal quality of all the second cells, and then judges which second cell the mobile terminal is suitable to be switched to according to the measurement results, so that the switching control of the mobile terminal is more scientific and reliable.
In practical applications, after the mobile terminal is handed over to the second cell, the mobile terminal may be handed over again to the first cell according to the above-mentioned a1-B2 events due to the actual operation of the first cell and the second cell, so that the ping-pong effect may occur. Therefore, in an embodiment of the present invention, after the mobile terminal is handed over to the second cell, an optimized configuration instruction is further sent to the mobile terminal, where the optimized configuration instruction is at least used to adjust the threshold value. The threshold is the threshold used for judging the signal quality in the event of a1-B2, the optimal configuration instruction can flexibly configure the threshold according to the signal quality conditions of the first cell and the second cell, and the mobile terminal can be prevented from being switched back to the first cell after being switched to the second cell by adjusting the threshold, so that the stability of the access of the mobile terminal is ensured. It is understood that the optimized configuration instruction may also be used to change the event type, for example, change the a1 event to the a5 event, and change the trigger condition for the mobile terminal to report the measurement result to the base station, so as to avoid the ping-pong effect.
The following is an exemplary description of an embodiment of the present invention with reference to fig. 10, which is a complete flow chart of a cell handover method in an embodiment of the present invention, where the cell handover method is applied to a base station, and includes, but is not limited to, the following steps:
step 111: acquiring terminal capability information of a mobile terminal;
step 112: judging whether the mobile terminal supports NSA networking, if not, executing a step 113; if yes, ending the process;
step 113: sending a measurement instruction to a mobile terminal, enabling the mobile terminal to measure the signal quality of a second cell, and accumulating the times of sending the measurement instruction to the mobile terminal;
step 114: judging whether the number of times of sending the measurement instruction to the mobile terminal exceeds a preset number of times, if not, executing step 115; if yes, ending the process;
step 115: judging whether the measurement result of the mobile terminal is obtained within the upper limit of the timer, if so, executing step 116; if not, go to step 113;
step 116: judging whether the signal quality of the second cell meets the requirement that the mobile terminal performs access, if so, executing step 117; if not, ending the flow;
step 117: switching the mobile terminal to a second cell;
step 118: and sending an optimized configuration instruction to the mobile terminal.
The second cell in the above-mentioned flow does not support NSA networking, and the base station supporting NSA networking switches the mobile terminal not supporting NSA networking to the second cell not supporting NSA networking by judging whether the accessed mobile terminal supports NSA networking, thereby avoiding that the mobile terminal not supporting NSA networking occupies the resource of the base station supporting NSA networking, achieving the effect of reducing the load of the base station, and improving the user experience.
It should be noted that the method of steps 111 to 118 is only an exemplary specific implementation manner of the embodiment of the present invention. Those skilled in the art can adapt the method described above without departing from the inventive concept.
In addition, referring to fig. 11, an embodiment of the present invention further provides a cell handover method, which is applied to a mobile terminal, where the method includes, but is not limited to the following steps:
step 601: sending terminal capability information to a base station of a first cell managing the access of the mobile terminal, wherein the first cell supports NSA networking;
step 602: and receiving a switching instruction sent by the base station, and switching to a second cell adjacent to the first cell, wherein the second cell does not support NSA networking.
When the mobile terminal executes the cell switching method of the embodiment of the invention, the mobile terminal has the following characteristics and capabilities: the mobile network communication system has a mobile network data function, for example, a sim card is inserted or a virtual sim card is configured, and can realize mobile network communication with a base station. The mobile network in the embodiment of the present application refers to a 2G, 3G, 4G, 5G or higher network for mobile, telecommunication, and unified operation, and these networks use proprietary frequencies, and have specialized operator planning, optimization, and operation, and complete procedures such as registration, authentication, charging, and the like are required for using these networks. Meanwhile, the mobile terminal does not support NSA networking, the hardware of the mobile terminal does not support NSA networking, or the mobile terminal does not support NSA networking due to hardware or software failure.
The mobile terminal sends the terminal capability information to the base station managing the first cell, and may adopt an active reporting mode or a reporting mode according to the requirements of the base station. The terminal capability information may include the endec capability of the terminal, which has been explained in the above embodiments and will not be described herein.
Referring to fig. 12, in an embodiment, before the mobile terminal receives the handover command sent by the base station, the method first measures the signal quality of the second cell, and specifically includes, but is not limited to, the following steps:
step 701: receiving a measurement instruction sent by the base station, and measuring the signal quality of the second cell, wherein the measurement instruction comprises a threshold value for the mobile terminal to judge the signal quality;
step 702: transmitting a measurement result of measuring the signal quality of the second cell to the base station.
Illustratively, the Signal quality may be represented by one of Signal strength RSRP (Reference Signal Receiving Power), Reference Signal Receiving quality rsrq (Reference Signal Receiving quality), Signal to Interference plus Noise Ratio (Signal to Interference plus Noise Ratio), or a combination thereof. The measurement instruction may include one or more combinations of a second cell list, a second cell measurement event, and a second cell measurement parameter, where the threshold for the mobile terminal to determine the signal quality may be included in the second cell measurement event. The above embodiments have already explained the kind of the second cell measurement event, and are not described herein again. In addition, in order to improve the measurement accuracy of the second cell signal instruction, the measurement result can be obtained by taking an average value through multiple measurements.
In addition, in order to avoid the ping-pong effect, after the mobile terminal is switched to the second cell, an optimal configuration instruction from the base station is received, and the optimal configuration instruction is at least used for adjusting the threshold value. The threshold is the threshold used for judging the signal quality in the event of a1-B2, the optimal configuration instruction can flexibly configure the threshold according to the signal quality conditions of the first cell and the second cell, and the mobile terminal can be prevented from being switched back to the first cell after being switched to the second cell by adjusting the threshold, so that the stability of the access of the mobile terminal is ensured.
It is understood that various implementation manners of the methods provided in the embodiments of the present application can be arbitrarily combined to achieve different technical effects.
Fig. 13 shows a base station 100 provided in an embodiment of the present application. The base station 100 includes: a memory 102, a processor 101 and a computer program stored in the memory 102 and operable on the processor 101, wherein the computer program is operable to execute the cell switching method of the above-mentioned method steps 101 to 103, steps 201 to 203, steps 301 to 302, steps 401 to 402, steps 501 to 502 and steps 111 to 118.
The processor 101 and the memory 102 may be connected by a bus or other means.
The memory 102, which is a non-transitory computer readable storage medium, may be used to store non-transitory software programs and non-transitory computer executable programs, such as the cell handover methods described in the embodiments of the present application. The processor 101 executes the non-transitory software program and the instructions stored in the memory 102, thereby implementing the cell switching method of steps 101 to 103, steps 201 to 203, steps 301 to 302, steps 401 to 402, steps 501 to 502, and steps 111 to 118 of the above-described method.
The memory 102 may include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required for at least one function; the storage data area may store data for performing the cell handover method described above. Further, the memory 102 may include a high speed random access memory 102, and may also include a non-transitory memory 102, such as at least one magnetic disk storage device, flash memory device, or other non-transitory solid state storage device. In some embodiments, the memory 102 may optionally include memory 102 located remotely from the processor 101, and the remote memory 102 may be connected to the base station 100 via a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.
The non-transitory software programs and instructions required to implement the cell handover methods described above are stored in the memory 102 and, when executed by the one or more processors 101, perform the cell handover methods of the above-described method steps 101 to 103, steps 201 to 203, steps 301 to 302, steps 401 to 402, steps 501 to 502, steps 111 to 118.
Fig. 14 shows a mobile terminal 200 provided in an embodiment of the present application. The mobile terminal 200 includes: a memory 202, a processor 201, and a computer program stored on the memory 202 and executable on the processor 201, wherein the computer program is used to execute the cell handover methods of steps 601 to 602, 701 to 702.
The processor 201 and memory 202 may be connected by a bus or other means.
The embodiment of the present application further provides a computer-readable storage medium, which stores computer-executable instructions for executing the cell handover method.
In an embodiment, the computer-readable storage medium stores computer-executable instructions, which are executed by one or more control processors, for example, by one processor 101 in the base station 100, and enable the one or more processors 101 to execute the cell handover methods of steps 101 to 103, steps 201 to 203, steps 301 to 302, steps 401 to 402, steps 501 to 502, and steps 111 to 118. Alternatively, the cell switching method of steps 601 to 602, 701 to 702 may be executed by one processor 201 of the mobile terminal 200, so that the one or more processors 201 execute the cell switching method of steps 601 to 602, 701 to 702.
The above-described embodiments of the apparatus are merely illustrative, wherein the units illustrated as separate components may or may not be physically separate, i.e. may be located in one place, or may also be distributed over a plurality of network elements. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment.
One of ordinary skill in the art will appreciate that all or some of the steps, systems, and methods disclosed above may be implemented as software, firmware, hardware, and suitable combinations thereof. Some or all of the physical components may be implemented as software executed by a processor, such as a central processing unit, digital signal processor, or microprocessor, or as hardware, or as an integrated circuit, such as an application specific integrated circuit. Such software may be distributed on computer readable media, which may include computer storage media (or non-transitory media) and communication media (or transitory media). The term computer storage media includes volatile and nonvolatile, removable and non-removable media implemented in any method or technology for storage of information such as computer readable instructions, data structures, program modules or other data, as is well known to those of ordinary skill in the art. Computer storage media includes, but is not limited to, RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, Digital Versatile Disks (DVD) or other optical disk storage, magnetic cassettes, magnetic tape, magnetic disk storage or other magnetic storage devices, or any other medium which can be used to store the desired information and which can accessed by a computer. In addition, communication media typically embodies computer readable instructions, data structures, program modules or other data in a modulated data signal such as a carrier wave or other transport mechanism and includes any information delivery media as known to those skilled in the art.
While the preferred embodiments of the present invention have been described, the present invention is not limited to the above embodiments, and those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present invention, and such equivalent modifications or substitutions are included in the scope of the present invention defined by the claims.
Claims (15)
1. A cell switching method is applied to a base station, and is characterized by comprising the following steps:
acquiring terminal capability information of a mobile terminal accessed to a first cell, wherein the first cell is managed by the base station and supports non-independent NSA networking;
judging whether the mobile terminal supports NSA networking or not according to the terminal capability information;
and when the terminal capability information represents that the mobile terminal does not support NSA networking, sending a switching instruction to the mobile terminal to enable the mobile terminal to be switched to a second cell adjacent to the first cell, wherein the second cell does not support NSA networking.
2. The cell switching method according to claim 1, wherein the sending the switching command to the mobile terminal comprises:
acquiring the signal quality of the second cell;
judging whether the signal quality of the second cell meets the requirement of the mobile terminal for executing access;
and when the signal quality of the second cell meets the requirement that the mobile terminal executes access, sending a switching instruction to the mobile terminal.
3. The cell switching method according to claim 2, wherein the obtaining the signal quality of the second cell comprises:
sending a measurement instruction to the mobile terminal to enable the mobile terminal to measure the signal quality of the second cell, wherein the measurement instruction comprises a threshold value for the mobile terminal to judge the signal quality;
and obtaining a measurement result of the mobile terminal measuring the signal quality of the second cell.
4. The cell switching method according to claim 3, wherein the sending the measurement command to the mobile terminal comprises:
acquiring a second cell list, a second cell measurement event and a second cell measurement parameter;
and generating a measurement instruction according to the second cell list, the second cell measurement event and the second cell measurement parameter, and sending the measurement instruction to the mobile terminal.
5. The cell switching method according to claim 2, wherein the determining whether the signal quality of the second cell is sufficient for the mobile terminal to perform access comprises:
setting a timer for timing;
and when the signal quality of the second cell is acquired within the timing upper limit of the timer, judging whether the mobile terminal can be accessed to the second cell by using the signal quality of the second cell.
6. The cell switching method according to claim 5, wherein the determining whether the signal quality of the second cell is sufficient for the mobile terminal to perform access further comprises:
when the signal quality of the second cell is not obtained within the upper limit of the timer, sending a measurement instruction to the mobile terminal, so that the mobile terminal measures the signal quality of the second cell, and accumulating the times of sending the measurement instruction to the mobile terminal;
and when the signal quality of all the second cells is not acquired within the upper limit of the timer, sending a measurement instruction to the mobile terminal, so that the mobile terminal measures the signal quality of the second cells, and accumulating the times of sending the measurement instruction to the mobile terminal.
7. The cell switching method according to claim 6, wherein the determining whether the signal quality of the second cell is sufficient for the mobile terminal to perform access further comprises:
and when the number of times of sending the measurement instruction to the mobile terminal exceeds the preset number of times, stopping sending the measurement instruction to the mobile terminal.
8. The cell switching method according to any one of claims 3 to 7, further comprising:
and after the mobile terminal is switched to the second cell, sending an optimized configuration instruction to the mobile terminal, wherein the optimized configuration instruction is at least used for adjusting the threshold value.
9. The cell switching method according to claim 1, wherein the switching the access of the mobile terminal to the second cell comprises at least one of:
when the number of the second cells is one, switching the access of the mobile terminal to the second cells;
when the number of the second cells is multiple, switching the access of the mobile terminal to one with the best signal quality in the second cells;
and when the number of the second cells is more than one, switching the access of the mobile terminal to the second cell which the mobile terminal has accessed.
10. A cell switching method is applied to a mobile terminal, and is characterized by comprising the following steps:
sending terminal capability information to a base station of a first cell managing the access of the mobile terminal, wherein the first cell supports NSA networking;
and receiving a switching instruction sent by the base station, and switching to a second cell adjacent to the first cell, wherein the second cell does not support NSA networking.
11. The cell switching method according to claim 10, wherein before receiving the switching command sent by the base station, the method further comprises:
receiving a measurement instruction sent by the base station, and measuring the signal quality of the second cell, wherein the measurement instruction comprises a threshold value for the mobile terminal to judge the signal quality;
transmitting a measurement result of measuring the signal quality of the second cell to the base station.
12. The cell switching method according to claim 11, further comprising:
and after the mobile terminal is switched to the second cell, receiving an optimized configuration instruction from the base station, wherein the optimized configuration instruction is at least used for adjusting the threshold value.
13. A base station, comprising: memory, processor and computer program stored on the memory and executable on the processor, characterized in that the processor implements the cell handover method according to any of claims 1 to 9 when executing the computer program.
14. A mobile terminal, comprising: memory, processor and computer program stored on the memory and executable on the processor, characterized in that the processor implements the cell handover method according to any of claims 10 to 12 when executing the computer program.
15. A computer-readable storage medium storing computer-executable instructions for performing the cell handover method of any one of claims 1 to 12.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911377553.8A CN113055951A (en) | 2019-12-27 | 2019-12-27 | Cell switching method, base station, mobile terminal and storage medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911377553.8A CN113055951A (en) | 2019-12-27 | 2019-12-27 | Cell switching method, base station, mobile terminal and storage medium |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113055951A true CN113055951A (en) | 2021-06-29 |
Family
ID=76506339
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911377553.8A Pending CN113055951A (en) | 2019-12-27 | 2019-12-27 | Cell switching method, base station, mobile terminal and storage medium |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113055951A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101867982A (en) * | 2009-04-17 | 2010-10-20 | 中兴通讯股份有限公司 | Method, terminal, network base station and system for processing terminal service request |
| CN102883361A (en) * | 2011-07-15 | 2013-01-16 | 华为技术有限公司 | Methods and equipment for submitting cell information and adjusting cell mobility parameter |
| CN108696881A (en) * | 2017-03-16 | 2018-10-23 | 中国移动通信有限公司研究院 | A kind of connection management method, first network equipment, terminal device and system |
| CN109168179A (en) * | 2018-08-28 | 2019-01-08 | 中国联合网络通信集团有限公司 | A kind of system dual link scheduling strategy and device |
| CN109862595A (en) * | 2019-03-18 | 2019-06-07 | 中国联合网络通信集团有限公司 | A kind of orientation switching method and system |
-
2019
- 2019-12-27 CN CN201911377553.8A patent/CN113055951A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101867982A (en) * | 2009-04-17 | 2010-10-20 | 中兴通讯股份有限公司 | Method, terminal, network base station and system for processing terminal service request |
| CN102883361A (en) * | 2011-07-15 | 2013-01-16 | 华为技术有限公司 | Methods and equipment for submitting cell information and adjusting cell mobility parameter |
| CN108696881A (en) * | 2017-03-16 | 2018-10-23 | 中国移动通信有限公司研究院 | A kind of connection management method, first network equipment, terminal device and system |
| CN109168179A (en) * | 2018-08-28 | 2019-01-08 | 中国联合网络通信集团有限公司 | A kind of system dual link scheduling strategy and device |
| CN109862595A (en) * | 2019-03-18 | 2019-06-07 | 中国联合网络通信集团有限公司 | A kind of orientation switching method and system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9992723B2 (en) | Techniques for handling data stall in WLAN | |
| US10321382B2 (en) | Mobility and/or access selection between cells | |
| US9420512B2 (en) | Handling uplink power limited scenarios | |
| US8917702B2 (en) | Method and device for data processing in a wireless network | |
| EP4080935A1 (en) | Method for residing in cell, and related device and storage medium | |
| US8615244B2 (en) | Measurement control method, user equipment and network-side device | |
| KR101492950B1 (en) | Handoff determination in a heterogeneous network | |
| US9913179B2 (en) | Method and system to trigger UE handover in a radio communication network | |
| US11218958B2 (en) | Measurement for fast cell access | |
| US20190394698A1 (en) | Method and apparatus for managing mobility in wireless communication system | |
| US10470093B2 (en) | Connection attempt to alternative access upon connection attempt rejection | |
| US9674736B2 (en) | Method and system for handover between different networks, and evolved high rate packet data network | |
| US12010570B2 (en) | Method and device for establishing aggregated connection | |
| CN104349379A (en) | Method and device for processing measurement configurations | |
| CN112399514A (en) | Cell switching method, terminal and computer readable storage medium | |
| US20230276324A1 (en) | Cell Reselection-Related Information Associated with Network Slice or Closed Access Group For Wireless Networks | |
| JP6629428B2 (en) | Wireless local area network WLAN measurement and reporting method and related devices | |
| EP2991401A1 (en) | Mobility management method, device and system | |
| EP4171120A1 (en) | Migration method under hybrid networking, storage medium, and electronic device | |
| CN113055951A (en) | Cell switching method, base station, mobile terminal and storage medium | |
| CN113891416A (en) | Cell access method, device, equipment, storage medium and computer program | |
| WO2020061922A1 (en) | Processing method and device based on load on unlicensed band | |
| KR20220055680A (en) | Method for Providing Handoff for 5G Terminal | |
| CN112911683A (en) | Distributed networking control method, distributed networking, electronic device and readable medium |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |