CN110225546B - Method for controlling auxiliary node in double connection and base station - Google Patents
Method for controlling auxiliary node in double connection and base station Download PDFInfo
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- CN110225546B CN110225546B CN201910560376.0A CN201910560376A CN110225546B CN 110225546 B CN110225546 B CN 110225546B CN 201910560376 A CN201910560376 A CN 201910560376A CN 110225546 B CN110225546 B CN 110225546B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
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- H04W24/10—Scheduling measurement reports ; Arrangements for measurement reports
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- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/10—Connection setup
- H04W76/15—Setup of multiple wireless link connections
Abstract
The embodiment of the invention provides an auxiliary node control method and a base station in double connection, wherein the method comprises the following steps: acquiring a wireless access network notification area code of a terminal and issuing measurement configuration information to the terminal so that the terminal can report a measurement report according to the measurement configuration information; storing all cell information of which Reference Signal Received Power (RSRP) values are higher than a preset threshold value in the measurement report as a first neighbor cell list locally; storing the cells in the first neighbor cell list, which are the same as the radio access network notification area code of the terminal, as a second neighbor cell list locally; and determining that the auxiliary node establishes double connection in the second neighbor list. According to the method and the base station for controlling the auxiliary nodes in the double connection, provided by the embodiment of the invention, different application scenes are comprehensively considered, and the auxiliary nodes are selected according to the channel quality and the data flow of the terminal to establish the double connection, so that the performance of the terminal is maximized.
Description
Technical Field
The present invention relates to the field of wireless communication technologies, and in particular, to a method for controlling an auxiliary node in dual connectivity and a base station.
Background
New Radio (NR) systems aim to provide high transmission rates, low latency, packet optimization and improved system capacity and coverage. Now, in order to enhance the mobility performance of the network and increase the user throughput, a new enhancement scheme called Dual Connectivity (DC) is introduced. The terminal first connects to a Master Node (MN), and then adds a Secondary Node (SN) according to circumstances, for example, service requirements, radio environment, device capabilities, and the like. The MN and the SN provide services to the terminal at the same time, i.e., dual connectivity. How to select SN to establish dual connectivity becomes an urgent problem to be solved.
In the prior art, the technology for selecting SN to establish dual connection is single, and the SN is added in a blind SN adding mode, a neighbor cell measurement report-based mode, and a terminal flow-based mode.
However, the SN adding methods provided by the prior art all have respective problems, and the blind SN adding may add a neighboring cell with insufficient signal quality as the SN of the terminal, thereby causing the dual connectivity performance to be degraded. The SN adding mode based on the neighbor cell measurement report can select the neighbor cell according to the measurement report reported by the terminal, so that the performance of double connection is ensured, but if the SN is continuously changed, the signaling load on the Xx interface is increased. By adopting the SN adding mode based on the terminal flow, resource waste can be caused by adding SN nodes without considering the size of the terminal flow. Therefore, a new method for controlling the secondary node in dual connectivity is needed to solve the above problems.
Disclosure of Invention
In order to solve the above problem, embodiments of the present invention provide a method and a base station for controlling a secondary node in dual connectivity, which overcome the above problem or at least partially solve the above problem.
In a first aspect, an embodiment of the present invention provides a method for controlling an auxiliary node in dual connectivity, including:
acquiring a wireless access network notification area code of a terminal and issuing measurement configuration information to the terminal so that the terminal can report a measurement report according to the measurement configuration information;
storing all cell information of which Reference Signal Received Power (RSRP) values are higher than a preset threshold value in the measurement report as a first neighbor cell list locally;
storing the cells in the first neighbor cell list, which are the same as the radio access network notification area code of the terminal, as a second neighbor cell list locally;
and determining that the auxiliary node establishes double connection in the second neighbor list.
Wherein the determining that the secondary node establishes dual connectivity in the second neighbor list comprises:
and if the number of the cells in the second neighbor cell list is unique, establishing dual connectivity by taking the unique cell in the second neighbor cell list as the auxiliary node.
Wherein the determining that the secondary node establishes dual connectivity in the second neighbor list further comprises:
and if the number of the cells in the second neighbor cell list is greater than 1, determining that the auxiliary node establishes dual-connection according to the data volume to be transmitted of the terminal.
If the number of the cells in the second neighbor cell list is greater than 1, determining an auxiliary node to establish dual connectivity according to the data volume to be transmitted of the terminal, including:
and if the data volume to be transmitted of the terminal is larger than the first data volume threshold value to be transmitted and smaller than the second data volume threshold value to be transmitted, selecting a cell with the best channel quality in the second neighbor cell list as a secondary node to establish double connection.
Wherein, if the number of the cells in the second neighbor cell list is greater than 1, determining the auxiliary node to establish dual connectivity according to the data amount to be transmitted of the terminal, further comprising:
and if the data volume to be transmitted of the terminal is larger than the second data volume threshold value to be transmitted, selecting two cells with the first two channel qualities in the second neighbor cell list as the auxiliary nodes to establish double connection.
Wherein, after determining that the secondary node establishes dual connectivity in the second neighbor list, the method further comprises:
monitoring the duration of no data transmission of the terminal;
and if the duration of the no-data transmission is greater than a first no-data transmission time threshold value, deleting all the double connections established by the terminal.
After monitoring the duration of the terminal without data transmission, the method further comprises:
if the duration of the no-data transmission is longer than a first no-data transmission time threshold, shorter than a second no-data transmission time threshold and a plurality of double connections established by the terminal, only the double connection with the best channel quality is reserved, and all the other double connections are deleted.
Second aspect an embodiment of the present invention further provides a base station, including:
the configuration issuing module is used for acquiring a wireless access network notification area code of the terminal and issuing measurement configuration information to the terminal so that the terminal can report a measurement report according to the measurement configuration information;
a first neighbor cell list establishing module, configured to locally store all cell information in the measurement report, where a reference signal received power RSRP value is higher than a preset threshold value, as a first neighbor cell list;
a second neighbor cell list establishing module, configured to locally store, as a second neighbor cell list, a cell in the first neighbor cell list that is the same as a radio access network notification area code of the terminal;
and the auxiliary node adding module is used for determining that the auxiliary node establishes double connection in the second neighbor cell list.
Third aspect an embodiment of the present invention provides an electronic device, including:
a processor, a memory, a communication interface, and a bus; the processor, the memory and the communication interface complete mutual communication through the bus; the memory stores program instructions executable by the processor, and the processor calls the program instructions to execute the control method of the auxiliary node in the dual connectivity.
In a fourth aspect, an embodiment of the present invention provides a non-transitory computer-readable storage medium, which stores computer instructions that cause a computer to execute the above-mentioned dual-connectivity secondary node control method.
According to the method and the base station for controlling the auxiliary nodes in the double connection, provided by the embodiment of the invention, different application scenes are comprehensively considered, and the auxiliary nodes are selected according to the channel quality and the data flow of the terminal to establish the double connection, so that the performance of the terminal is maximized.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and those skilled in the art can also obtain other drawings according to the drawings without creative efforts.
Fig. 1 is a schematic flowchart of a method for controlling an auxiliary node in dual connectivity according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a base station according to an embodiment of the present invention;
fig. 3 is a block diagram of an electronic device according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some embodiments, but not all embodiments, of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Fig. 1 is a schematic flowchart of a method for controlling an auxiliary node in dual connectivity according to an embodiment of the present invention, as shown in fig. 1, including:
101. acquiring a wireless access network notification area code of a terminal and issuing measurement configuration information to the terminal so that the terminal can report a measurement report according to the measurement configuration information;
102. storing all cell information of which Reference Signal Received Power (RSRP) values are higher than a preset threshold value in the measurement report as a first neighbor cell list locally;
103. storing the cells in the first neighbor cell list, which are the same as the radio access network notification area code of the terminal, as a second neighbor cell list locally;
104. and determining that the auxiliary node establishes double connection in the second neighbor list.
It should be noted that the execution main body in the embodiment of the present invention is the base station side, and it can be understood that the application scenario targeted by the embodiment of the present invention is a dual-connection application scenario, that is, after it is determined that the master node MN is connected to the terminal, it is also determined that an auxiliary node SN provides services for the terminal at the same time, and then the execution main body in the embodiment of the present invention is the MN that has established connection with the terminal, and the SN is controlled by the MN. The control includes determination, addition, deletion, and the like of the SN.
Specifically, in step 101, it can be understood that, when the MN establishes a connection with the terminal, the MN broadcasts a radio access network Notification Area Code RAN Area Code in a System message SIB1(System Information Block1), and then records the RAN Area Code of the terminal after the terminal establishes a connection with the MN, where it is to be noted that, when the RAN Area Code to which the terminal belongs changes, the terminal needs to initiate an RNA (RAN-based Notification Area) update procedure to notify the MN in time. Further, the MN issues measurement configuration (RRC Reconfiguration) information to the terminal, where the measurement configuration information may require the terminal to report a measurement report, and the measurement report may carry measured neighbor cell information.
Further, in step 102, the MN compares neighboring cell information in a measurement report reported by the terminal with a preset reference signal received power, RSRP, and records a cell with an RSRP higher than a preset threshold in the neighboring cell in the first neighboring cell list, and if none of the cells exists, the dual connectivity fails this time, and waits for the next measurement report.
Further, in step 103, after determining each cell in the first neighbor cell list, the embodiment of the present invention performs a second screening on the cells in the neighbor cell list, where the second screening is to locally store the base station information of the neighbor cell with the same RAN Area Code as the second neighbor cell list by comparing whether the RAN Area Code of the neighbor cell base station is the same as the RAN Area Code of the terminal. It can be understood that the terminal can reduce signaling overhead when communicating under the condition that the RAN Area codes are the same, thereby enabling the terminal performance to be better.
Finally, after two neighbor cell screens, in step 104, the embodiment of the present invention determines that the secondary node establishes dual connectivity from the second neighbor cell list. It should be noted that, the number of the secondary nodes determined in the embodiment of the present invention is not limited, that is, a plurality of cells may be determined at the same time as the secondary nodes, so as to establish a plurality of dual connections. The specific selection of the secondary node may be determined according to the amount of data that the terminal needs to transmit. It can be understood that, the larger the data volume required to be transmitted by the terminal is, the corresponding embodiment of the present invention may adopt a plurality of auxiliary nodes to perform data offloading, thereby optimizing the performance of the terminal.
According to the method for controlling the auxiliary nodes in the double-connection, provided by the embodiment of the invention, different application scenes are comprehensively considered, and the auxiliary nodes are selected according to the channel quality and the data flow of the terminal to establish the double-connection, so that the performance of the terminal is maximized.
On the basis of the foregoing embodiment, the determining that the secondary node establishes dual connectivity in the second neighbor cell list includes:
and if the number of the cells in the second neighbor cell list is unique, establishing dual connectivity by taking the unique cell in the second neighbor cell list as the auxiliary node.
As can be seen from the content of the foregoing embodiment, the embodiment of the present invention performs two rounds of screening on the neighboring cells, so as to determine the second neighboring cell list, where all the cells in the second neighboring cell list can substantially meet the requirements of the SN.
It can be understood that, when there is only one cell in the second neighbor list, the embodiment of the present invention can only establish a dual connectivity with the cell as the SN. It should be further noted that, if none of the cells in the second neighbor cell list exists, this means that the terminal is located at the edge of the cell at this time, and if dual connectivity is established, SN handover frequently occurs, which increases signaling overhead, so that dual connectivity cannot be established.
On the basis of the foregoing embodiment, the determining that the secondary node establishes dual connectivity in the second neighbor cell list further includes:
and if the number of the cells in the second neighbor cell list is greater than 1, determining that the auxiliary node establishes dual-connection according to the data volume to be transmitted of the terminal.
It can be understood that, when the number of the cells in the second neighbor cell list is greater than 1, all the cells do not need to be used as SNs at this time, and in this scenario, in the embodiment of the present invention, a plurality of preferred cells among the cells are determined to be used as secondary nodes to establish dual connectivity according to the amount of data to be transmitted of the terminal.
On the basis of the foregoing embodiment, if the number of cells in the second neighbor cell list is greater than 1, determining, according to the amount of data to be transmitted of the terminal, that the secondary node establishes dual connectivity includes:
and if the data volume to be transmitted of the terminal is larger than the first data volume threshold value to be transmitted and smaller than the second data volume threshold value to be transmitted, selecting a cell with the best channel quality in the second neighbor cell list as a secondary node to establish double connection.
If the number of the cells in the second neighbor cell list is greater than 1, determining the auxiliary node to establish dual connectivity according to the data volume to be transmitted of the terminal, further comprising:
and if the data volume to be transmitted of the terminal is larger than the second data volume threshold value to be transmitted, selecting two cells with the first two channel qualities in the second neighbor cell list as the auxiliary nodes to establish double connection.
As can be seen from the content of the foregoing embodiment, when there are multiple cells in the second neighbor cell list, in the embodiment of the present invention, the cells in the second neighbor cell list need to be selected according to the amount of data to be transmitted of the terminal, and a plurality of suitable cells are selected as the secondary nodes to establish dual connectivity.
Specifically, in the embodiment of the present invention, a first to-be-transmitted data volume threshold value PDUSize1 and a second to-be-transmitted data volume threshold value PDUSize2 are preset, and PDUSize1 is smaller than PDUSize2, when a terminal has data to transmit, the terminal obtains the value of the to-be-transmitted data volume, if the value of the to-be-transmitted data volume is smaller than PDUSize1, a dual connection is not established, because the data volume is too small at this time, resources are not wasted, if the value of the to-be-transmitted data volume is larger than PDUSize1 and smaller than PDUSize2, a best neighbor cell in a second neighbor list is selected as an SN to establish the dual connection, and the best judgment in the embodiment of the present invention is generally based on channel quality, that is, an RSRP value. And if the value of the data volume to be transmitted is greater than PDSsize 2, selecting two adjacent regions with the best channel quality from the second adjacent region list as SN (service number) to establish the dual connection.
It can be understood that when the data volume of the terminal is small, the MN does not establish the dual connectivity, and the MN can already satisfy the data transmission of the terminal, and if the dual connectivity is established at this time, the power consumption of the terminal is increased, so the performance is better without establishing the dual connectivity. If the data volume is larger, one adjacent cell with the best channel quality is selected from the second adjacent cell list to establish double connection, so that the transmission rate can be improved. And if the data volume is large, selecting two adjacent regions with the best channel quality in the second adjacent region list for shunting. Two adjacent regions are selected as SN, so that the time delay caused by SN switching can be reduced. If a plurality of base stations are selected, the power consumption of the terminal is increased, so that a compromise is made between the improvement of the transmission rate and the power consumption of a battery, and it is most appropriate to select two base stations with good quality for data distribution.
On the basis of the foregoing embodiment, after determining that the secondary node establishes dual connectivity in the second neighbor cell list, the method further includes:
monitoring the duration of no data transmission of the terminal;
and if the duration of the no-data transmission is greater than a first no-data transmission time threshold value, deleting all the double connections established by the terminal.
As can be seen from the content of the above embodiment, the embodiment of the present invention performs cell screening twice, and determines that the specific auxiliary node establishes dual connectivity according to the amount of data to be transmitted. It will be appreciated that maintaining dual connectivity at all times after data transmission is complete also increases terminal battery power consumption. In order to reduce power consumption, the embodiment of the present invention provides a dual connection deletion method, which can disconnect dual connections in time under appropriate conditions to save power consumption.
Specifically, the embodiment of the present invention may preset a first no-data transmission time threshold T1, and then the MN monitors the duration of no-data transmission by the terminal through the timer, and if the terminal does not perform data transmission within a certain period of time, obtains the time of no data service, and when the time is higher than T1, it is verified that the dual connection of the terminal is inactive, and at this time, the dual connection of the terminal may be deleted, thereby reducing the power consumption of the system.
On the basis of the foregoing embodiment, after the monitoring the duration of the terminal without data transmission, the method further includes:
if the duration of the no-data transmission is longer than a first no-data transmission time threshold, shorter than a second no-data transmission time threshold and a plurality of double connections established by the terminal, only the double connection with the best channel quality is reserved, and all the other double connections are deleted.
As can be seen from the foregoing description of the embodiments, in the embodiments of the present invention, a plurality of dual connections may exist at the same time, but in some scenarios, it is not necessary to keep all the dual connections, and for such a scenario, the embodiment of the present invention further sets a second no-data transmission time threshold value T2 on the basis of the first no-data transmission time threshold value T1, where T2 is smaller than T1. Then after the data transmission of the terminal is finished, the MN starts a timer, monitors the duration of no data transmission of the terminal, inquires the number of the double connections established by the terminal when the duration of no data transmission is greater than a threshold T2 and less than T1, and does not perform any operation if the terminal establishes one double connection; if the number of the established double connections is more than one, one double connection with the best channel quality is reserved, and all the other double connections are deleted. And continuously monitoring the time T of no data transmission of the terminal, and deleting all the double connections when T is greater than T1.
Fig. 2 is a schematic structural diagram of a base station according to an embodiment of the present invention, as shown in fig. 2, including: configuring a forwarding module 201, a first neighbor list establishing module 202, a second neighbor list establishing module 203, and an auxiliary node adding module 204, wherein:
the configuration issuing module 201 is configured to acquire a radio access network notification area code of a terminal and issue measurement configuration information to the terminal, so that the terminal can report a measurement report according to the measurement configuration information;
the first neighbor cell list establishing module 202 is configured to locally store all cell information in the measurement report, where a reference signal received power RSRP value is higher than a preset threshold value, as a first neighbor cell list;
the second neighbor cell list establishing module 203 is configured to locally store cells in the first neighbor cell list that are the same as the radio access network notification area code of the terminal as a second neighbor cell list;
the secondary node adding module 204 is configured to determine that the secondary node establishes dual connectivity in the second neighbor list.
Specifically, how to configure the issuing module 201, the first neighbor list establishing module 202, the second neighbor list establishing module 203, and the auxiliary node adding module 204 may be used to execute the technical scheme of the embodiment of the method for controlling an auxiliary node in dual connectivity shown in fig. 1, which implements similar principles and technical effects, and is not described herein again.
According to the base station provided by the embodiment of the invention, different application scenes are comprehensively considered, and the auxiliary node is selected to establish double connection according to the channel quality and the data flow of the terminal, so that the terminal performance is maximized.
On the basis of the above embodiment, the auxiliary node adding module includes:
and the unique connection unit is used for establishing double connection by taking the unique cell in the second neighbor cell list as the auxiliary node if the number of the cells in the second neighbor cell list is unique.
On the basis of the above embodiment, the auxiliary node adding module further includes:
and the multi-connection unit is used for determining the auxiliary node to establish double connection according to the data volume to be transmitted of the terminal if the number of the cells in the second neighbor cell list is greater than 1.
On the basis of the above embodiment, the multi-connection unit includes:
and the single-auxiliary node subunit is used for selecting the cell with the best channel quality as the auxiliary node in the second neighbor cell list to establish double connection if the data volume to be transmitted of the terminal is greater than the first data volume threshold value to be transmitted and less than the second data volume threshold value to be transmitted.
On the basis of the above embodiment, the multi-connection unit further includes:
and the dual-auxiliary-node subunit is configured to select two cells with channel quality two before the second cell in the second neighbor cell list as auxiliary nodes to establish dual connectivity if the to-be-transmitted data amount of the terminal is greater than the second to-be-transmitted data amount threshold value.
On the basis of the above embodiment, the base station further includes:
the monitoring module is used for monitoring the duration of the terminal without data transmission;
and the dual connection deleting module is used for deleting all dual connections established by the terminal if the duration of the no-data transmission is greater than a first no-data transmission time threshold value.
On the basis of the above embodiment, the base station further includes:
and the double-connection part deleting module is used for only keeping the double connection with the best channel quality and deleting all the other double connections if the duration of the no-data transmission is longer than a first no-data transmission time threshold value, is shorter than a second no-data transmission time threshold value and the number of the double connections established by the terminal is multiple.
Fig. 3 is a block diagram of an electronic device according to an embodiment of the present invention, and referring to fig. 3, the electronic device includes: a processor (processor)301, a communication Interface (communication Interface)302, a memory (memory)303 and a bus 304, wherein the processor 301, the communication Interface 302 and the memory 303 complete communication with each other through the bus 304. Processor 301 may call logic instructions in memory 303 to perform the following method: acquiring a wireless access network notification area code of a terminal and issuing measurement configuration information to the terminal so that the terminal can report a measurement report according to the measurement configuration information; storing all cell information of which Reference Signal Received Power (RSRP) values are higher than a preset threshold value in the measurement report as a first neighbor cell list locally; storing the cells in the first neighbor cell list, which are the same as the radio access network notification area code of the terminal, as a second neighbor cell list locally; and determining that the auxiliary node establishes double connection in the second neighbor list.
An embodiment of the present invention discloses a computer program product, which includes a computer program stored on a non-transitory computer readable storage medium, the computer program including program instructions, when the program instructions are executed by a computer, the computer can execute the methods provided by the above method embodiments, for example, the method includes: acquiring a wireless access network notification area code of a terminal and issuing measurement configuration information to the terminal so that the terminal can report a measurement report according to the measurement configuration information; storing all cell information of which Reference Signal Received Power (RSRP) values are higher than a preset threshold value in the measurement report as a first neighbor cell list locally; storing the cells in the first neighbor cell list, which are the same as the radio access network notification area code of the terminal, as a second neighbor cell list locally; and determining that the auxiliary node establishes double connection in the second neighbor list.
Embodiments of the present invention provide a non-transitory computer-readable storage medium, which stores computer instructions, where the computer instructions cause the computer to perform the methods provided by the above method embodiments, for example, the methods include: acquiring a wireless access network notification area code of a terminal and issuing measurement configuration information to the terminal so that the terminal can report a measurement report according to the measurement configuration information; storing all cell information of which Reference Signal Received Power (RSRP) values are higher than a preset threshold value in the measurement report as a first neighbor cell list locally; storing the cells in the first neighbor cell list, which are the same as the radio access network notification area code of the terminal, as a second neighbor cell list locally; and determining that the auxiliary node establishes double connection in the second neighbor list.
Through the above description of the embodiments, those skilled in the art will clearly understand that each embodiment can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware. With this understanding in mind, the above-described technical solutions may be embodied in the form of a software product, which can be stored in a computer-readable storage medium such as ROM/RAM, magnetic disk, optical disk, etc., and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the method according to each embodiment or some parts of the embodiments.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. A method for controlling an auxiliary node in dual connectivity is characterized by comprising the following steps:
acquiring a wireless access network notification area code of a terminal and issuing measurement configuration information to the terminal so that the terminal can report a measurement report according to the measurement configuration information;
storing all cell information of which Reference Signal Received Power (RSRP) values are higher than a preset threshold value in the measurement report as a first neighbor cell list locally;
storing the cells in the first neighbor cell list, which are the same as the radio access network notification area code of the terminal, as a second neighbor cell list locally;
and determining that the auxiliary node establishes double connection in the second neighbor list.
2. The method of claim 1, wherein the determining that the secondary node establishes the dual connectivity in the second neighbor list comprises:
and if the number of the cells in the second neighbor cell list is unique, establishing dual connectivity by taking the unique cell in the second neighbor cell list as the auxiliary node.
3. The method of claim 2, wherein the determining that the secondary node establishes the dual connectivity in the second neighbor list further comprises:
and if the number of the cells in the second neighbor cell list is greater than 1, determining that the auxiliary node establishes dual-connection according to the data volume to be transmitted of the terminal.
4. The method according to claim 3, wherein if the number of cells in the second neighbor cell list is greater than 1, determining that the secondary node establishes the dual connectivity according to the amount of data to be transmitted of the terminal includes:
and if the data volume to be transmitted of the terminal is larger than the first data volume threshold value to be transmitted and smaller than the second data volume threshold value to be transmitted, selecting a cell with the best channel quality in the second neighbor cell list as a secondary node to establish double connection.
5. The method of claim 4, wherein if the number of cells in the second neighbor cell list is greater than 1, determining that the secondary node establishes the dual connectivity according to the amount of data to be transmitted of the terminal, further comprising:
and if the data volume to be transmitted of the terminal is larger than the second data volume threshold value to be transmitted, selecting two cells with the first two channel qualities in the second neighbor cell list as the auxiliary nodes to establish double connection.
6. The method of claim 5, wherein after determining that the secondary node establishes the dual connectivity in the second neighbor list, the method further comprises:
monitoring the duration of no data transmission of the terminal;
and if the duration of the no-data transmission is greater than a first no-data transmission time threshold value, deleting all the double connections established by the terminal.
7. The method of claim 6, wherein after the monitoring the duration of the terminal without data transmission, the method further comprises:
if the duration of the no-data transmission is longer than a first no-data transmission time threshold, shorter than a second no-data transmission time threshold and a plurality of double connections established by the terminal, only the double connection with the best channel quality is reserved, and all the other double connections are deleted.
8. A base station, comprising:
the configuration issuing module is used for acquiring a wireless access network notification area code of the terminal and issuing measurement configuration information to the terminal so that the terminal can report a measurement report according to the measurement configuration information;
a first neighbor cell list establishing module, configured to locally store all cell information in the measurement report, where a reference signal received power RSRP value is higher than a preset threshold value, as a first neighbor cell list;
a second neighbor cell list establishing module, configured to locally store, as a second neighbor cell list, a cell in the first neighbor cell list that is the same as a radio access network notification area code of the terminal;
and the auxiliary node adding module is used for determining that the auxiliary node establishes double connection in the second neighbor cell list.
9. An electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, wherein the processor when executing the program performs the steps of the method of controlling a secondary node in a dual connectivity as claimed in any one of claims 1 to 7.
10. A non-transitory computer readable storage medium, having stored thereon a computer program, wherein the computer program, when executed by a processor, performs the steps of the method for controlling a secondary node in a dual connectivity as claimed in any one of claims 1 to 7.
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| CN113543368A (en) * | 2020-04-14 | 2021-10-22 | 中国移动通信有限公司研究院 | Network connection control method and device, related equipment and storage medium |
| CN113692068B (en) * | 2020-05-19 | 2023-09-22 | 成都鼎桥通信技术有限公司 | Terminal signal measurement method and system |
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