CN114449684A - Double-connection method and device for non-independent networking NSA - Google Patents
Double-connection method and device for non-independent networking NSA Download PDFInfo
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Abstract
The embodiment of the invention provides a double-connection method and a double-connection device for non-independent networking NSA, which are applied to a main node MN in a communication system, wherein the communication system also comprises an auxiliary node SN connected with the MN, and the method comprises the following steps: determining that the received signaling sent by the SN is an auxiliary base station connection rejection signaling, wherein the auxiliary base station connection rejection signaling is used for indicating that the SN cannot be connected with the MN; circularly executing at least one connection processing operation until the SN successfully establishes connection with the MN, or the statistical data of the auxiliary base station connection rejection signaling received by the MN meets a set condition, wherein the connection processing operation comprises the following steps: and sending an auxiliary base station connection request signaling to the SN at the delay designated time, wherein the auxiliary base station connection request signaling is used for the MN to request to establish connection to the SN. The embodiment of the invention reduces the signaling overhead and the waste of network resources.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a dual connectivity method and apparatus for non-independent networking NSA.
Background
Non-Stand Alone Networking (NSA) is a network architecture used in the transition stage from existing 4G networks to 5G network Stand Alone networking (SA). The NSA may be a dual connectivity system. In NSA Dual-Connectivity (DC), a communication system includes a terminal device and two base stations, and the terminal device can establish a connection through the two base stations to access a core network. Among the two base stations, the base station serving as the control plane anchor point is a Master Node (MN), which is also called a Master eNB (MeNB). The primary base station is configured to the terminal device through a connection signaling, and a base station playing a role of auxiliary communication is a Secondary Node (SN), also called a Secondary eNB (SeNB).
At present, in NSA, MN establishes dual connectivity for terminal equipment, that is, when MN adds SN, MN sends secondary base station connection request sgnbaditionaterquest signaling to SN, if SN replies to MN that secondary base station connection refuses sgnbaditionaterquest signaling, it indicates that SN cannot establish connectivity with MN, and dual connectivity establishment fails. At this time, the MN may adjust according to the reason for the establishment failure carried in the received sgnbaditionrequestrequest signaling.
However, during the adjustment period, the MN still continuously sends the secondary base station connection request sgnbaditionrequest signaling to the SN, and the SN also continuously sends the secondary base station connection rejection sgnbaditionrequest signaling to the MN accordingly because the connection cannot be established, which results in large signaling overhead and resource waste.
Disclosure of Invention
The embodiment of the invention provides a NSA dual-connection method and a device, which can reduce the frequency of sending an auxiliary base station connection request signaling to an SN by an MN, and further reduce the frequency of correspondingly sending an auxiliary base station connection rejection signaling to the MN because the SN cannot establish connection. Signaling overhead and waste of network resources are reduced.
The embodiment of the invention provides a double-connection method of non-independent networking NSA, which is applied to a main node MN in a communication system, wherein the communication system also comprises an auxiliary node SN connected with the MN, and the method comprises the following steps:
determining that the received signaling sent by the SN is an auxiliary base station connection rejection signaling, wherein the auxiliary base station connection rejection signaling is used for indicating that the SN cannot be connected with the MN;
circularly executing at least one connection processing operation until the SN successfully establishes connection with the MN, or the statistical data of the auxiliary base station connection rejection signaling received by the MN meets a set condition, wherein the connection processing operation comprises the following steps:
and sending an auxiliary base station connection request signaling to the SN at the delay designated time, wherein the auxiliary base station connection request signaling is used for the MN to request to establish connection to the SN.
The embodiment of the invention provides a double-connection device of a non-independent networking NSA, which is applied to a main base station MN in a communication system, the communication system also comprises an auxiliary base station SN connected with the MN, and the method comprises the following steps:
a determining module, configured to determine that a received signaling sent by the SN is an auxiliary base station connection rejection signaling, where the auxiliary base station connection rejection signaling is used to indicate that the SN cannot establish a connection with the MN;
a processing module, configured to cyclically execute at least one connection processing operation until the SN successfully establishes a connection with the MN, or statistical data of the secondary base station connection rejection signaling received by the MN meets a set condition, where the connection processing operation includes: and sending an auxiliary base station connection request signaling to the SN at the delay designated time, wherein the auxiliary base station connection request signaling is used for the MN to request to establish connection to the SN.
The embodiment of the invention has the following advantages:
in the NSA dual-connection method and apparatus provided in the embodiments of the present invention, before the MN determines that the SN is successfully connected to the MN, or determines that the received statistical data of the secondary base station connection rejection sgnbaditionaterquestreject signaling satisfies the set condition, the MN may delay the instruction and send the secondary base station connection request sgnbaditionrequest signaling to the SN after determining that the received signaling sent by the SN is the secondary base station connection rejection sgnbaditionaterquestreject signaling each time. Compared with the prior art, the frequency of the secondary base station connection rejection SgnbAdditioneRequest signaling sent by the MN to the SN during the adjustment of the communication system is reduced, and the frequency of the secondary base station connection rejection SgnbAdditioneRequest signaling correspondingly sent to the MN because the SN cannot establish connection is further reduced. The method and the device alleviate the strength of the secondary base station connection request SgnbAdditioneRequest signaling and the secondary base station connection rejection SgnbAdditioneRequest signaling cycle transmission, and reduce the signaling overhead and the waste of network resources.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments of the present invention will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive labor.
Fig. 1 is a schematic flowchart illustrating a dual connectivity method for NSA according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a communication system according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of another communication system provided in the embodiment of the present invention;
fig. 4 is a schematic structural diagram of another communication system provided in the embodiment of the present invention;
fig. 5 is a schematic structural diagram of a further communication system provided in an embodiment of the present invention;
fig. 6 is a flowchart showing a successful establishment of dual connectivity by a terminal device in the related art;
fig. 7 is a flowchart showing that a terminal device has not successfully established a dual connection in the related art;
fig. 8 is a schematic flow chart illustrating another NSA dual connectivity method according to an embodiment of the present invention;
fig. 9 is a schematic structural diagram illustrating a dual connection apparatus of NSA according to an embodiment of the present invention;
fig. 10 is a schematic structural diagram of a base station according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, 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.
Method embodiment
Referring to fig. 1, a flow chart of a NSA dual connectivity method according to an embodiment of the present invention is shown. The method is applied to the MN of the communication system, and the communication system also comprises an SN connected with the MN. The method comprises the following steps:
102, circularly executing at least one connection processing operation until the SN is successfully connected with the MN, or the statistical data of the connection rejection signaling of the secondary base station received by the MN meets the set condition, wherein the connection processing operation comprises:
and sending a secondary base station connection request signaling to the SN at the delay designated time, wherein the secondary base station connection request signaling is used for the MN to request the connection establishment from the SN.
The NSA dual-connection method provided by the embodiment of the invention can be applied to a communication system. Referring to fig. 2, a schematic structural diagram of a communication system according to an embodiment of the present invention is shown. As shown in fig. 2, the communication system may include a terminal device 201 and two base stations, a first base station 202 and a second base station 203. The terminal 201 refers to a terminal with dual connectivity capability, and may establish a connection through two base stations respectively to access a core network. It will be appreciated that a terminal device will typically need to have two sets of transceivers. The terminal 201 may be referred to as a User Equipment (UE) or an access terminal. By way of example, the terminal device may be a mobile phone, a tablet computer, a wearable device, or the like. A base station serving as a control plane anchor point in two base stations of the communication system is a Master Node (MN), which is also called a Master eNB (MeNB). The primary base station is configured to the terminal device through a connection signaling, and a base station playing a role of auxiliary communication is a Secondary Node (SN), also called a Secondary eNB (SeNB).
Specifically, the communication system of the NSA, that is, the dual link system of the NSA, may be established based on a plurality of networking methods. In different networking modes, two base stations in the communication system can be different types of base stations. The following three mainstream networking manners are taken as examples in the embodiment of the present invention to further explain the communication system shown in fig. 2.
The first networking mode is an Option3x architecture. As shown in fig. 3, the communication system may include: UE, Evolved Node B (eNB) in a Long Term Evolution (LTE) system, that is, eNB (also called eNodeB, LTE eNB). An LTE eNB is a 4G base station and a G Node B (gNB) in a New Radio (NR) system, i.e., a gNB. The gNB is a 5G base station. NR refers to 5G NR, and is a 5G radio interface technology, and an NR system may be understood as a system using a 5G radio interface technology.
The UE is connected to the gbb and LTE eNB, respectively. The UE is connected to the LTE eNB through a UU interface, which is an interface of a WCDMA system, the WCDMA system is a system under the 3 rd generation mobile communication main system, and the system mainly includes a Core Network (CN), an Evolved Universal Terrestrial Radio Access Network (UTRAN), referred to as an Access Network, and the UE. In the communication system, the LTE eNB is MN and the gbb is SN. In fig. 3, the LTE eNB is characterized as an MN accessing the EPC by connecting the LTE eNB with the EPC by a dotted line.
Under the Option3 (including Option3x) architecture, LTE eNB is used as control plane anchor, and in this case, the gNB may also be referred to as en-gNB. In the Option3 architecture, Dual connectivity using a 4 base station as a primary node and a 5G base station as a secondary node is also referred to as Dual connectivity (EN-DC) based on evolved-universal mobile telecommunications system terrestrial Radio access (E-UTRA) technology — New Radio (NR) technology.
The gNB interfaces with the LTE eNB via an X2 interface. The X2 interface is an interface for connection between enbs, supporting direct transmission of data and signaling.
Both the gNB and the LTE eNB are connected with an Evolved Core network (EPC) through an S1-u interface. The EPC is a 4G core network. The S1 interface is a communication interface between the LTE eNB and the EPC, and the S1-u interface is an interface for transmitting user plane data in the S1 interface, that is, an interface for transmitting user data traffic.
The second networking mode is an Option4x architecture. As shown in fig. 4, the communication system may include: UE, gNB, and Next Generation 4G base station (Next Generation eNodeB, ng-eNB). The Ng-eNB, also called an upgraded 4G base station, also referred to as Ng _ eNB, may be considered a base station under the LET system. The base station not only supports eLTE but also can be in butt joint with a 5G core network on the basis of the original 4G base station. In the communication system, the ng-eNB is MN and the gNB is SN. In fig. 4, the ng-eNB is represented as MN accessing 5GC by connecting the ng-eNB with the 5GC by a dotted line.
The UE is connected with the gNB and the ng-eNB respectively. And the UE is connected with the ng-eNB through a UU interface. The ng-eNB and the gNB are connected through an Xn interface. The Xn interface is an interface for connection between the gNB and the ng-eNB. Both the gNB and the ng-eNB are connected to a 5G core network (5GC) via an Ngap-u interface. The Ngap interface is a communication interface based on a new air interface Application Protocol (Ngap). The Ngap-u interface is an interface of the Ngap interface for transmitting user plane data, i.e. an interface for transmitting user data traffic.
The third networking mode is an Option7x architecture. As shown in fig. 5, the communication system may include: UE, gNB, and ng-eNB. In the communication system, the gNB is MN and the ng-eNB is SN. In fig. 5, the gNB is characterized as an MN accessing 5GC by connecting the gNB with the 5GC by a dotted line.
The UE is connected with the gNB and the ng-eNB respectively. The UE is connected with the gNB through a UU interface. The ng-eNB and the gNB are connected through an Xn interface. Both the gNB and the ng-eNB are connected to a 5G core network (5GC) via an Ngap-u interface.
The embodiment of the present invention takes the communication system based on the first networking mode as an Option3x architecture as shown in fig. 3 as an example, and schematically illustrates that, in the current NSA, MN successfully establishes dual connectivity for a terminal device and unsuccessfully establishes dual connectivity. As shown in fig. 6, it shows a flow chart of successfully establishing dual connection by a terminal device in the related art. MN (MeNB) sends a secondary base station connection request SgnbAdditioneRequest signaling to SN (en-gNB), and the SN sends a secondary base station connection request acknowledgement SgnbAdditioneRequestAcknowledgesignaling to the MN. At this time, the MN and the SN successfully establish a connection, that is, the MN successfully establishes a dual connection for the terminal device. As shown in fig. 7, it shows a flow chart of the related art in which the terminal device has not successfully established the dual connection. MN (MeNB) sends a secondary base station connection request SgnbAdditioneRequest to SN (en-gNB), and the SN sends a secondary base station connection rejection SgnbAdditioneRequestReject signaling to the MN. At this time, the MN and the SN do not successfully establish a connection, that is, the MN does not successfully establish a dual connection for the terminal device.
In the embodiment of the present invention, before the MN determines that the SN and the MN successfully establish a connection, or determines that the received statistical data of the secondary base station connection rejection sgnbaditionaterrequest signaling satisfies the set condition, the MN may delay and specify the timing length to send the secondary base station connection request sgnbaditionaterrequest signaling to the SN after determining that the received signaling sent by the SN is the secondary base station connection rejection sgnbaditionrequestrequest signaling each time. Compared with the prior art, the frequency of the secondary base station connection rejection SgnbAdditioneRequest signaling sent by the MN to the SN during the adjustment of the communication system is reduced, and the frequency of the secondary base station connection rejection SgnbAdditioneRequest signaling correspondingly sent to the MN because the SN cannot establish connection is further reduced. The method and the device alleviate the strength of the secondary base station connection request SgnbAdditioneRequest signaling and the secondary base station connection rejection SgnbAdditioneRequest signaling cycle transmission, and reduce the signaling overhead and the waste of network resources.
In step 101, after receiving the signaling sent by the SN, the MN may determine whether the received signaling is a connection rejection signaling of the secondary base station.
In step 102, optionally, the MN may be provided with a timer, which is set with a specified duration. The process of the operation of the MN delaying the operation of sending the secondary base station connection request SgnbAdditionRequest signaling to the SN for the specified length may include: the MN starts a timer, and when the timer times out, sends a secondary base station connection request SgnbAdditioneRequest signaling to the SN.
For example, before the MN determines that the SN and the MN successfully establish a connection, or before it determines that the received statistical data of the secondary base station connection rejection sgnbaditionaterquestreject signaling satisfies the set condition, the MN may start a timer after determining that the signaling sent by the received SN is the secondary base station connection rejection sgnbaditionaterquestreject signaling each time. When the timer times out, a secondary base station connection request SgnbAdditioneRequest signaling is sent to the SN.
In an optional embodiment of the present invention, the connection processing operation may further include:
and updating a rejection quantity parameter, wherein the rejection quantity parameter is used for recording the times of receiving the secondary base station connection rejection signaling by the MN. And when the value of the rejection number parameter is less than or equal to a first specified threshold value, sending a secondary base station connection request signaling to the SN. And when the value of the rejection quantity parameter is larger than a first specified threshold value, clearing the value of the rejection quantity parameter. The process of sending the connection request signaling of the secondary base station to the SN at the time of delay specification may include: and when the value of the rejection quantity parameter is larger than a first specified threshold value, transmitting a secondary base station connection request signaling to the SN at a specified delay time. Optionally, the first instruction threshold may be 5, 10, or 15, and the like, which is not limited in this embodiment of the present invention.
For example, the MN may add a reject number parameter for recording the number of times the MN receives the secondary base station connection rejection signaling. The MN may add 1 to the value of the rejection number parameter upon receiving the secondary base station connection rejection sgnbaditionrequestrequest signaling. It is then determined whether the value of the rejection quantity parameter is greater than a first command threshold. When the rejection number parameter is less than or equal to the first instruction threshold, the MN may directly continue to send secondary base station connection request sgnbaddionrequest signaling to the SN. And when the rejection quantity parameter is larger than the first instruction threshold, performing zero clearing operation on the rejection quantity parameter, and sending a secondary base station connection request SgnbAdditionRequest signaling to the SN at the specified delay time. Thus, the frequency of sending the secondary base station connection request signaling to the SN at the specified time of the MN delay is limited by the rejection number parameter. Therefore, when the rejection quantity parameter is smaller than or equal to the first instruction threshold, the MN can continuously send the connection request signaling of the auxiliary base station to the SN, and the connection efficiency is improved.
In an optional embodiment of the present invention, the condition for ending the MN executing the at least one connection processing operation in a loop may be that the MN successfully establishes a connection with the SN, that is, the condition for ending the MN executing the at least one connection processing operation in a loop may be that the MN receives a secondary base station connection request acknowledgement sgnbaddionrequestacknowledgement signaling sent by the SN. Or the at least one connection processing operation executed by the MN in a loop may be executed by the MN, so that the statistical data of the secondary base station connection rejection signaling received by the MN satisfies the set condition.
In the case that the termination condition for the MN to cyclically execute the connection processing operation is that the statistical data of the secondary base station connection rejection signaling received by the MN satisfies the set condition, the statistical data of the secondary base station connection rejection signaling received by the MN satisfying the set condition may include: the number of times the value of the rejection quantity parameter is cleared is greater than a second specified threshold. Or, the total number of the secondary base station connection rejection signaling received by the MN is greater than a third specified threshold, and the third instruction threshold is greater than the first specified threshold. Wherein the second specified threshold may be 10 or 20, etc., and the third instruction threshold may be 30 or 40, etc. The second specified threshold and the third specified threshold are not limited, and both the second specified threshold and the third specified threshold can be determined according to actual conditions.
Optionally, in a case that the deadline condition for performing the connection processing operation is that the number of times for clearing the value of the rejection number parameter is greater than a second specified threshold, the connection processing operation may further include:
when the value of the rejection number parameter is greater than the first specified threshold, the MN may further record the target number of times it clears the data of the rejection number parameter. This causes the connection processing operation to be stopped when the target number of times is greater than the second instruction threshold.
Optionally, when the deadline condition for performing the connection processing operation is that the total number of the secondary base station connection rejection signaling received by the MN is greater than a third specified threshold, the connection processing operation may further include:
and updating a total rejection number parameter, wherein the total rejection number parameter is used for recording the total number of the secondary base station connection rejection SgnbAdditionRequestReject signaling received by the MN. This causes the connection processing operation to be stopped when the total number is larger than a third specified threshold.
When the MN receives statistical data of a connection rejection signaling from a secondary base station, the statistical data may indicate that the MN cannot establish a connection with the SN successfully for a long time. The MN may make an alarm response that is used to remind the SN that the connection with the MN cannot be established, and to remind the staff that the connection between the MN and the SN cannot be successfully established, possibly requiring manual intervention. At this point, a worker may intervene to debug the communication system so that the MN and SN can successfully establish a connection.
Optionally, the MN responding to the alert may include: the MN generates a mail alert prompt and sends the mail alert prompt to a designated worker, or the MN may generate and broadcast a voice alert prompt, or the MN may be provided with a prompt lamp for indicating that the MN is connected to the SN, and the MN may turn on the prompt lamp to prompt the worker by powering on the prompt, which is not limited in the embodiments of the present invention.
In the embodiment of the invention, before the MN determines that the SN is successfully connected with the MN or determines that the statistical data of the received secondary base station connection rejection SgnbAdditioneRequestReject signaling meets the set conditions, the MN can delay and designate the timing length to send the secondary base station connection request SgnbAdditioneRequest signaling to the SN after determining that the signaling sent by the received SN is the secondary base station connection rejection SgnbAdditioneRequestReject signaling each time. Compared with the prior art, the frequency of the secondary base station connection rejection SgnbAdditioneRequest signaling sent by the MN to the SN during the adjustment of the communication system is reduced, and the frequency of the secondary base station connection rejection SgnbAdditioneRequest signaling correspondingly sent to the MN because the SN cannot establish connection is further reduced. The method and the device alleviate the strength of the secondary base station connection request SgnbAdditioneRequest signaling and the secondary base station connection rejection SgnbAdditioneRequest signaling cycle transmission, and reduce the signaling overhead and the waste of network resources.
Referring to fig. 8, a flow chart of another NSA dual connectivity method according to an embodiment of the present invention is shown. The method is applied to the MN of the communication system, and the communication system also comprises an SN connected with the MN. The specific steps of the method may be parameters of each step in the method shown in fig. 1. The method comprises the following steps:
The number of times parameter N _ rej is the above-mentioned rejection number parameter.
The MN judges whether the number of times parameter N _ rej exceeds the threshold, namely, the MN judges whether the rejection number parameter is larger than a first specified threshold. When the number of times parameter N _ rej exceeds the threshold, it indicates that the value of the reject number parameter is greater than a first specified threshold. When the number of times parameter N _ rej does not exceed the threshold, it indicates that the value of the reject number parameter is less than or equal to the first specified threshold.
And 305, the MN stops sending the SgnbAdditioneRequest signaling and clears the time parameter N _ rej.
In step 306, the MN determines whether the timer T _ rej has timed out. When the timer T _ rej times out, step 307 is executed; when the timer T _ rej does not time out, no operation is performed.
The MN determines whether dual connectivity is established, that is, the MN determines whether the signaling sent by the SN received by the MN is sgnbaditionrequestrequest signaling or sgnbaditionrequestacknowledgement signaling. And when the MN receives the signaling sent by the SN, namely the SgnbAdditionRequestReject signaling, determining that the dual connection is not successfully established. And when the MN receives the signaling sent by the SN, the signaling is SgnbAdditionRequestAcknowledgege signaling, determining that the dual connection is successfully established.
In summary, in the dual connectivity method for NSA provided in the embodiment of the present invention, before the MN determines that the SN is successfully connected to the MN, or before it determines that the received statistical data of the secondary base station connection rejection sgnbaditionaterquestreject signaling satisfies the set condition, the MN may delay the designation of the secondary base station connection request sgnbaditionaterquest signaling from the SN after determining that the received signaling sent by the SN is the secondary base station connection rejection sgnbaditionaterquestreject signaling each time. Compared with the prior art, the frequency of the secondary base station connection rejection SgnbAdditioneRequest signaling sent by the MN to the SN during the adjustment of the communication system is reduced, and the frequency of the secondary base station connection rejection SgnbAdditioneRequest signaling correspondingly sent to the MN because the SN cannot establish connection is further reduced. The method and the device alleviate the strength of the secondary base station connection request SgnbAdditioneRequest signaling and the secondary base station connection rejection SgnbAdditioneRequest signaling cycle transmission, and reduce the signaling overhead and the waste of network resources.
It should be noted that, for simplicity of description, the method embodiments are described as a series of acts or combination of acts, but those skilled in the art will recognize that the present invention is not limited by the illustrated order of acts, as some steps may occur in other orders or concurrently in accordance with the embodiments of the present invention. Further, those skilled in the art will appreciate that the embodiments described in the specification are presently preferred and that no particular act is required to implement the invention.
Apparatus embodiment
Referring to fig. 9, a schematic structural diagram of a dual connection apparatus of NSA according to an embodiment of the present invention is shown. The device is applied to MN of the communication system, and the communication system also comprises SN connected with the MN. The apparatus may specifically include:
the determining module 401 is configured to determine that the received signaling sent by the SN is a connection rejection signaling of the secondary base station, where the connection rejection signaling of the secondary base station is used to indicate that the SN cannot establish a connection with the MN.
A processing module 402, configured to execute at least one connection processing operation in a loop until the SN is successfully connected to the MN, or statistical data of a secondary base station connection rejection signaling received by the MN meets a set condition, where the connection processing operation includes: and sending a secondary base station connection request signaling to the SN at the delay designated time, wherein the secondary base station connection request signaling is used for the MN to request the connection establishment from the SN.
Optionally, the connection processing operation further includes:
updating a rejection quantity parameter, wherein the rejection quantity parameter is used for recording the times of receiving the secondary base station connection rejection signaling by the MN;
when the numerical value of the rejection quantity parameter is smaller than or equal to a first designated threshold value, sending a secondary base station connection request signaling to the SN;
and when the value of the rejection quantity parameter is larger than a first specified threshold value, clearing the value of the rejection quantity parameter.
A processing module 402, further configured to: and when the value of the rejection quantity parameter is larger than a first specified threshold value, transmitting a secondary base station connection request signaling to the SN at a specified delay time.
Optionally, the statistical data of the secondary base station connection rejection signaling received by the MN meeting the set condition includes: the number of times the value of the rejection quantity parameter is cleared is greater than a second specified threshold. Or, the total number of the secondary base station connection rejection signaling received by the MN is greater than a third specified threshold, and the third instruction threshold is greater than the first specified threshold.
Optionally, the apparatus further comprises:
an alarm module 403, configured to make an alarm response when the statistical data of the secondary base station connection rejection signaling received by the MN meets a set condition, where the alarm response is used to remind the SN that the connection with the MN cannot be established.
In summary, in the dual connectivity apparatus of NSA provided in the embodiment of the present invention, before determining that the SN is successfully connected to the MN through the processing module of the MN, or before determining that the received statistical data of the secondary base station connection rejection sgnbaditionaterquestreject signaling satisfies the setting condition, the MN may delay the length of the instruction to send the secondary base station connection request sgnbaditionaterquest signaling to the SN after determining that the received signaling sent by the SN is the secondary base station connection rejection sgnbaditionaterquestreject signaling each time the determining module of the MN determines that the received signaling sent by the SN is the secondary base station connection rejection sgnbaditionaterquestreject signaling. Compared with the prior art, the frequency of the secondary base station connection rejection SgnbAdditioneRequest signaling sent by the MN to the SN during the adjustment of the communication system is reduced, and the frequency of the secondary base station connection rejection SgnbAdditioneRequest signaling correspondingly sent to the MN because the SN cannot establish connection is further reduced. The method and the device alleviate the strength of the secondary base station connection request SgnbAdditioneRequest signaling and the secondary base station connection rejection SgnbAdditioneRequest signaling cycle transmission, and reduce the signaling overhead and the waste of network resources.
For the device embodiment, since it is basically similar to the method embodiment, the description is simple, and for the relevant points, refer to the partial description of the method embodiment.
The embodiments in the present specification are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
With regard to the apparatus in the above-described embodiment, the specific manner in which each module performs the operation has been described in detail in the embodiment related to the method, and will not be elaborated here.
An embodiment of the present invention further provides a base station, please refer to fig. 10, including: a processor 501, a memory 502 and a computer program 5021 stored on the memory 502 and operable on the processor 501, the processor 501 implementing the NSA dual connectivity method of the previous embodiments when executing the program.
Embodiments of the present disclosure also provide a readable storage medium, wherein instructions, when executed by a processor of a base station, enable the base station to perform the NSA dual connectivity method of the foregoing embodiments.
The algorithms and displays presented herein are not inherently related to any particular computer, virtual machine, or other apparatus. Various general purpose systems may also be used with the teachings herein. The required structure for constructing such a system will be apparent from the description above. In addition, embodiments of the present disclosure are not directed to any particular programming language. It is appreciated that a variety of programming languages may be used to implement the teachings of the embodiments of the present disclosure as described herein, and any descriptions of specific languages are provided above to disclose the best modes of the embodiments of the present disclosure.
In the description provided herein, numerous specific details are set forth. However, it is understood that embodiments of the present disclosure may be practiced without these specific details. In some instances, well-known methods, structures and techniques have not been shown in detail in order not to obscure an understanding of this description.
Similarly, it should be appreciated that in the foregoing description of exemplary embodiments of the disclosure, various features of the embodiments of the disclosure are sometimes grouped together in a single embodiment, figure, or description thereof for the purpose of streamlining the disclosure and aiding in the understanding of one or more of the various inventive aspects. However, the disclosed method should not be interpreted as reflecting an intention that: that is, claimed embodiments of the disclosure require more features than are expressly recited in each claim. Rather, as the following claims reflect, inventive aspects lie in less than all features of a single foregoing disclosed embodiment. Thus, the claims following the detailed description are hereby expressly incorporated into this detailed description, with each claim standing on its own as a separate embodiment of an embodiment of this disclosure.
Those skilled in the art will appreciate that the modules in the devices in an embodiment may be adaptively changed and arranged in one or more devices different from the embodiment. The modules or units or components of the embodiments may be combined into one module or unit or component, and furthermore they may be divided into a plurality of sub-modules or sub-units or sub-components. All of the features disclosed in this specification (including any accompanying claims, abstract and drawings), and all of the processes or elements of any method or apparatus so disclosed, may be combined in any combination, except combinations where at least some of such features and/or processes or elements are mutually exclusive. Each feature disclosed in this specification (including any accompanying claims, abstract and drawings) may be replaced by alternative features serving the same, equivalent or similar purpose, unless expressly stated otherwise.
The various component embodiments of the disclosure may be implemented in hardware, or in software modules running on one or more processors, or in a combination thereof. It will be appreciated by those skilled in the art that a microprocessor or Digital Signal Processor (DSP) may be used in practice to implement some or all of the functions of some or all of the components in a sequencing device according to embodiments of the present disclosure. Embodiments of the present disclosure may also be implemented as an apparatus or device program for performing a portion or all of the methods described herein. Such programs implementing embodiments of the present disclosure may be stored on a computer readable medium or may be in the form of one or more signals. Such a signal may be downloaded from an internet website or provided on a carrier signal or in any other form.
It should be noted that the above-mentioned embodiments illustrate rather than limit embodiments of the disclosure, and that those skilled in the art will be able to design alternative embodiments without departing from the scope of the appended claims. In the claims, any reference signs placed between parentheses shall not be construed as limiting the claim. The word "comprising" does not exclude the presence of elements or steps not listed in a claim. The word "a" or "an" preceding an element does not exclude the presence of a plurality of such elements. Embodiments of the disclosure may be implemented by means of hardware comprising several distinct elements, and by means of a suitably programmed computer. In the unit claims enumerating several means, several of these means may be embodied by one and the same item of hardware. The usage of the words first, second and third, etcetera do not indicate any ordering. These words may be interpreted as names.
It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
The above description is only for the purpose of illustrating the preferred embodiments of the present disclosure and is not to be construed as limiting the embodiments of the present disclosure, and any modifications, equivalents, improvements and the like that are made within the spirit and principle of the embodiments of the present disclosure are intended to be included within the scope of the embodiments of the present disclosure.
The above description is only a specific implementation of the embodiments of the present disclosure, but the scope of the embodiments of the present disclosure is not limited thereto, and any person skilled in the art can easily conceive of changes or substitutions within the technical scope of the embodiments of the present disclosure, and all the changes or substitutions should be covered by the scope of the embodiments of the present disclosure. Therefore, the protection scope of the embodiments of the present disclosure shall be subject to the protection scope of the claims.
Claims (10)
1. A dual-connection method for non-independent Networking (NSA), which is applied to a Main Node (MN) in a communication system, wherein the communication system further comprises a Secondary Node (SN) connected with the MN, and the method comprises the following steps:
determining that the received signaling sent by the SN is an auxiliary base station connection rejection signaling, wherein the auxiliary base station connection rejection signaling is used for indicating that the SN cannot be connected with the MN;
circularly executing at least one connection processing operation until the SN successfully establishes connection with the MN, or the statistical data of the auxiliary base station connection rejection signaling received by the MN meets a set condition, wherein the connection processing operation comprises the following steps:
and sending an auxiliary base station connection request signaling to the SN at the delay designated time, wherein the auxiliary base station connection request signaling is used for the MN to request to establish connection to the SN.
2. The method of claim 1, wherein the connection processing operations further comprise:
updating a rejection quantity parameter, wherein the rejection quantity parameter is used for recording the times of receiving the secondary base station connection rejection signaling by the MN;
when the numerical value of the rejection quantity parameter is smaller than or equal to a first designated threshold value, sending a secondary base station connection request signaling to the SN;
when the numerical value of the rejection quantity parameter is larger than the first specified threshold value, clearing the numerical value of the rejection quantity parameter;
the sending of the auxiliary base station connection request signaling to the SN at the specified delay time comprises: and when the numerical value of the rejection quantity parameter is larger than the first specified threshold value, delaying the specified length and sending a secondary base station connection request signaling to the SN.
3. The method as claimed in claim 2, wherein the statistical data of the secondary base station connection rejection signaling received by the MN satisfying a set condition comprises: the number of times of zero clearing of the numerical value of the rejection quantity parameter is greater than a second specified threshold;
or, the total number of the secondary base station connection rejection signaling received by the MN is greater than a third specified threshold, and the third instruction threshold is greater than the first specified threshold.
4. The method according to any one of claims 1-3, further comprising:
and when the statistical data of the auxiliary base station connection rejection signaling received by the MN meets a set condition, making an alarm response, wherein the alarm response is used for reminding the SN of being incapable of establishing connection with the MN.
5. A dual connectivity arrangement for non-independent networking NSA, applied to a primary base station MN in a communication system, the communication system further comprising a secondary base station SN connected to the MN, the method comprising:
a determining module, configured to determine that a received signaling sent by the SN is an auxiliary base station connection rejection signaling, where the auxiliary base station connection rejection signaling is used to indicate that the SN cannot establish a connection with the MN;
a processing module, configured to cyclically execute at least one connection processing operation until the SN successfully establishes a connection with the MN, or statistical data of the secondary base station connection rejection signaling received by the MN meets a set condition, where the connection processing operation includes: and sending an auxiliary base station connection request signaling to the SN at the delay designated time, wherein the auxiliary base station connection request signaling is used for the MN to request to establish connection to the SN.
6. The apparatus of claim 5, wherein the connection processing operations further comprise:
updating a rejection quantity parameter, wherein the rejection quantity parameter is used for recording the times of receiving the secondary base station connection rejection signaling by the MN;
when the numerical value of the rejection quantity parameter is smaller than or equal to a first designated threshold value, sending a secondary base station connection request signaling to the SN;
when the numerical value of the rejection quantity parameter is larger than the first specified threshold value, clearing the numerical value of the rejection quantity parameter;
and the processing module is used for delaying the sending of a secondary base station connection request signaling to the SN at a specified length when the numerical value of the rejection quantity parameter is larger than the first specified threshold.
7. The apparatus of claim 6, wherein the statistical data of the secondary base station connection rejection signaling received by the MN satisfying a set condition comprises: the number of times of zero clearing of the numerical value of the rejection quantity parameter is greater than a second specified threshold;
or, the total number of the secondary base station connection rejection signaling received by the MN is greater than a third specified threshold, and the third instruction threshold is greater than the first specified threshold.
8. The apparatus of any of claims 5-7, further comprising:
and the alarm module is used for making an alarm response when the statistical data of the auxiliary base station connection rejection signaling received by the MN meets a set condition, and the alarm response is used for reminding the SN of being incapable of establishing connection with the MN.
9. A base station, comprising: processor, memory and computer program stored on the memory and executable on the processor, characterized in that the processor, when executing the program, implements the dual connectivity method of non-standalone networking NSA according to one or more of claims 1-4.
10. A readable storage medium, characterized in that instructions in the storage medium, when executed by a processor of a base station, enable the base station to perform a dual connectivity method of non-standalone networking, NSA, according to one or more of the method claims 1-4.
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