WO2015081571A1

WO2015081571A1 - Method for determining a port number and e-utran nodeb thereof

Info

Publication number: WO2015081571A1
Application number: PCT/CN2013/088809
Authority: WO
Inventors: 何其钰
Original assignee: 华为技术有限公司
Priority date: 2013-12-06
Filing date: 2013-12-06
Publication date: 2015-06-11
Also published as: CN103814600A

Abstract

The present invention relates to the technical field of mobile communications and especially relates to a method for determining a port number and an E-UTRAN NodeB (eNB). The method includes that: a first eNB determines to establish an X2 interface with a second eNB; the first eNB acquires IP addresses of the two ends of a Stream Control Transmission Protocol (SCTP) link corresponding to the X2 interface (101), wherein the IP addresses of the two ends comprise the IP address of the first eNB and the IP address of the second eNB; the first eNB judges whether a corresponding relationship between the IP addresses of two ends and the established SCTP link is stored or not, and obtains a judgement result (102); and the first eNB establishes the SCTP link according to the judgement result (103). By utilizing the present invention, there is no need to pre-configure consistent SCTP port number for the eNBs at two ends where X2 interface is established, and therefore the network parameter configuration constraints are reduced.

Description

Method and base station for determining port number

Technical field

The present invention relates to the field of mobile communications technologies, and in particular, to a method and a base station for determining a port number. Background technique

The E-UTRAN NodeB (eNB) is the core network element in the Long Term Evolution (LTE) system, and the eNBs communicate through the X2 interface.

The X2 interface signaling plane of the base station uses the Stream Control Transmission Protocol (SCTP). The SCTP link is the local IP address, the peer IP address, the local SCTP port number, and the peer end of the SCTP link. The SCTP port number is uniquely determined. In the existing X2 interface establishment technology, the local base station that triggers the establishment of the X2 interface can send the local IP address of the X2 interface transmission link to the core network through the standard message specified by the 3GPP protocol, and then forward the core network to the other end base station ( That is, the opposite base station of the X2 interface transmission link), but the local base station cannot know the SCTP port number configured by the opposite base station. To facilitate network planning, the X2 interface of all base stations on the entire network is configured by the network operation and maintenance personnel to use the same SCTP port number when the base station is put into use. If multiple SCTP links need to be established between any two base stations in the LTE system, different IP addresses are used to distinguish different SCTP links.

Therefore, the two base stations that establish the X2 interface need to be configured with a consistent SCTP port number. That is, the two base stations that establish the X2 interface are in the process of establishing the X2 interface, and the SCTP port number configured by the opposite base station and the configuration of the base station are considered. it's the same. However, the X2 interface of all base stations on the entire network uses the same SCTP port number, which increases the workload of planning and maintaining the X2 interface. Summary of the invention

The embodiment of the present invention provides a method for determining a port number, and a base station, which is used to solve the problem that an SCTP port number that needs to be pre-configured at both ends of an X2 interface in the prior art is added, thereby increasing planning and The problem of maintaining the workload of the X2 interface.

In a first aspect, a method for determining a port number is provided, the method comprising:

The first base station determines that an X2 interface with the second base station needs to be established;

The first base station acquires the IP addresses of the two ends of the flow control transmission protocol SCTP link corresponding to the X2 interface, where the IP addresses of the two ends include: an IP address of the first base station and a second base station IP address;

Determining, by the first base station, whether a correspondence between the IP addresses of the two ends and the established SCTP link is saved, and obtaining a determination result;

The first base station establishes the SCTP link according to the determination result;

The establishing, by the first base station, the SCTP link according to the determination result includes any one of the following items:

When the determination result is no, the first base station establishes a first SCTP link, and sets a first port number of the two ends of the first SCTP link to an initial value;

When the determination result is yes, the first base station establishes a second SCTP link, and sets a port number of the two ends of the second SCTP link to a second port number, where the second port number is The port numbers on both ends of the SCTP link are different.

With reference to the first aspect, in a first possible implementation manner, the determining, by the first base station, whether the relationship between the IP address of the two ends and the established SCTP link is saved includes:

The first base station determines whether a correspondence between the IP addresses of the two ends and the established SCTP link is saved by querying the saved relationship table, where the relationship table includes all established SCTPs of the first base station. The correspondence between the link and the IP address and the correspondence between all established SCTP links and port numbers of the first base station.

With reference to the first aspect, in a second possible implementation manner, setting a port number of the two ends of the second SCTP link to a second port number includes:

Performing the initial value and the specific value N according to the same preset rule as the second base station, where the N is the same as the specific value saved by the second base station;

The result of the operation is set to the second port number at both ends of the second SCTP link. With reference to the first aspect, in a third possible implementation, the setting the port number at the two ends of the second SCTP link to the second port number includes:

Determining, by using the SCTP link of the first base station, the number of established SCTP links using the IP addresses of the two ends;

And setting the second port number at both ends of the second SCTP link according to the quantity and the initial value.

With reference to the third possible implementation of the first aspect, in a fourth possible implementation, the second port number is a sum of the quantity and the initial value, or the second port number is The sum of the quantity, the initial value, and the random number.

With reference to the first aspect, or the first to fourth possible implementation manners of the first aspect, in a fifth possible implementation manner, the initial value is a system preset value or an input value received by the first base station .

In a second aspect, a base station is provided, where the base station includes:

An acquiring unit, configured to determine that an X2 interface with the second base station is to be established, and obtain the IP addresses of the two ends of the flow control transmission protocol (SCTP) link corresponding to the X2 interface, where the IP addresses of the two ends include: The IP address of the base station and the IP address of the second base station;

a determining unit, configured to determine whether a correspondence between the IP addresses of the two ends and the established SCTP link is saved, and obtain a determination result;

a link establishing unit, configured to establish the SCTP link according to the determination result, where the base station establishes the SCTP link according to the determination result, and includes any one of the following:

When the determining result is no, the base station establishes a first SCTP link, and sets a first port number at both ends of the first SCTP link to an initial value;

When the judgment result is yes, the base station establishes a second SCTP link, and sets a port number of the two ends of the second SCTP link to a second port number, the second port number and the established SCTP The port numbers on both ends of the link are different.

With reference to the second aspect, in a first possible implementation, the determining unit is further configured to determine, by querying the saved relationship table, whether the IP address between the two ends is saved and the established SCTP link is Corresponding relationship, wherein the relationship table includes a correspondence between all established SCTP links of the base station and an IP address, and a correspondence between all established SCTP links and port numbers of the base station.

With reference to the second aspect, in a second possible implementation manner, the link establishing unit, where the port number of the two ends of the second SCTP link is set to the second port number, includes:

The result of the operation is set to the second port number at both ends of the second SCTP link. With reference to the second aspect, in a third possible implementation manner, the link establishing unit, where the port number of the two ends of the second SCTP link is set to the second port number, includes:

Determining the number of established SCTP links using the IP addresses of the two ends of the established SCTP link of the base station;

With the third possible implementation of the second aspect, in a fourth possible implementation, the link establishing unit uses a sum of the quantity and the initial value, or the quantity, the initial The sum of the value and the random number is taken as the second port number.

With reference to the second aspect, or the first to fourth possible implementation manners of the second aspect, in the fifth possible implementation manner, the link establishing unit is further configured to use the system preset value or the received input value as the The initial value.

In the foregoing technical solution, the base station may establish a new SCTP link according to the correspondence between the saved IP addresses of the two ends and the established SCTP link, and configure the X2 interface between the two base stations. The port number of the new SCTP link is such that the foregoing base station and the other base station do not need to be configured with a consistent SCTP port number in advance, thereby reducing constraints on network parameter configuration and reducing the workload of planning and maintaining the X2 interface. DRAWINGS

FIG. 1 is a schematic flowchart of a method for determining a port number according to an embodiment of the present disclosure; 2 is a schematic diagram of an application environment of a method provided by the present invention;

FIG. 3 is a schematic structural diagram of a base station according to an embodiment of the present disclosure;

FIG. 4 is a schematic structural diagram of a base station for determining a port number according to an embodiment of the present invention. detailed description

The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is a partial embodiment of the invention, and not all of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

The method of the present invention provides a method for determining a port number, the method comprising: determining, by the first base station, that an X2 interface between the second base station and the second base station is to be established;

The first base station acquires the IP addresses of the two ends of the flow control transmission protocol SCTP link corresponding to the X2 interface, where the IP addresses of the two ends include: an IP address of the first base station and an IP address of the second base station ;

In the embodiment of the present invention, the base stations at both ends of the X2 interface can be configured to obtain the preset initial value as the port number, or automatically generate a base station at both ends to be consistent and different from the established one. The new port number of the SCTP link port number. Therefore, the base stations at both ends of the X2 interface do not need to be configured with the same SCTP port number, which reduces the workload of planning and maintaining the X2 interface. In addition, the base station automatically generates a new port number that can be consistent and different from the established SCTP link port number, so that different SCTP links can be distinguished by different port numbers, compared with the prior art. In the aspect of the IP address distinguishing the SCTP link, the solution provided by the present invention can establish multiple SCTP links by using the same set of IP addresses, thereby achieving the effect of saving IP resources.

As shown in FIG. 1, an embodiment of the present invention provides a method for determining a port number. After a first base station determines that an X2 interface needs to be established with a second base station, the method includes:

Step 101: The first base station acquires IP addresses of the two ends of the flow control transmission protocol SCTP link corresponding to the X2 interface, where the IP addresses of the two ends include: an IP address of the first base station and an IP address of the second base station Address

In the implementation of the present invention, after the first base station determines that the X2 interface with the second base station is to be established, the process of triggering the establishment of the SCTP link corresponding to the X2 interface, and the specific triggering process according to different implementation situations includes:

Optionally, when it is determined that the X2 interface needs to be established, a triggering instruction is generated to trigger the establishment of the SCTP link corresponding to the X2 interface, and then the IP addresses of the two ends of the SCTP link corresponding to the X2 interface are obtained. Enter the establishment process of the SCTP link. Or, obtaining the IP addresses of the two ends of the SCTP link corresponding to the X2 interface, determining the establishment process of the corresponding triggered SCTP link, and entering the process of establishing the SCTP link.

Step 102: The first base station determines whether a correspondence between the IP addresses of the two ends and the established SCTP link is saved, and obtains a determination result.

For example, in the embodiment of the present invention, the first base station determines whether the correspondence between the IP address of the two ends and the established SCTP link is saved, including:

The first base station determines whether a correspondence between the IP addresses of the two ends and the established SCTP link is saved by querying the saved relationship table, where the relationship table includes all established SCTPs of the first base station. The correspondence between the link and the IP address and the correspondence between all established SCTP links and port numbers of the first base station. Step 103: The first base station establishes the SCTP link according to the determination result. The first base station establishes the SCTP link according to the determination result, and includes any one of the following: when the determining result is no, the The first base station establishes a first SCTP link and the first

The first port number at both ends of the SCTP link is set to an initial value;

When the judgment result is yes, the first base station establishes a second SCTP link, and the second

The port number at both ends of the SCTP link is set to the second port number, and the second port number is established with the second port number.

The port numbers on both ends of the SCTP link are different.

It can be understood that the second base station that establishes an SCTP link with the first base station can complete the establishment of the SCTP link and the configuration of the port number in a manner similar to the foregoing first base station. The following is a brief introduction:

The second base station determines that the first base station needs to establish an X2 interface with itself, and the second base station acquires the IP address of the first base station, and the second base station acquires the IP addresses of the two ends of the SCTP link that need to be established, and then The second base station performs the same operations as steps 102 and 103 to establish an SCTP link with the first base station. The first base station then communicates with the second base station over the established SCTP link.

In the embodiment of the present invention, in order to make the initial value meet the requirement of setting an SCTP link port number, the initial value in step 103 may be a system preset value or an input value received by the first base station.

The manner in which the first base station obtains the initial value may be: a system preset value received by the base station when establishing a station, powering on, or configuring an update; or, the first base station receives a computer or network connected to the first base station. The input value passed by the control device in .

In the description of the embodiments of the present invention, the port number of the two ends of an SCTP link is: the local port number and the peer port number of an SCTP link, and the local port number and the peer end for a link. The port numbers are in pairs. Therefore, in order to establish an SCTP link, the two base stations on the SCTP link need to set the two port numbers of the same SCTP link to the same value.

For example, the port number of the first SCTP link is 1024, that is, the local port number of the first SCTP link is 1024, and the peer port number of the first SCTP link is also 1024. The port number is set to 1025, that is, the local port number of the second SCTP link is 1025, and the second The peer port number of the SCTP link is also 1025.

In the step 103 of the embodiment of the present invention, in order to establish multiple SCTP links between the same pair of IPs, the port numbers of the two ends of different SCTP links that are successively established are set to different values, that is, the second SCTP link. The port numbers on both ends are set to the second peer port number that is different from the port number on both ends of the established SCTP link. Therefore, in the embodiment of the present invention, the first SCTP link and the establishment are established for the purpose that the second port number at the two ends of the second SCTP link is different from the port number of the established SCTP link. When the second SCTP link is described, the method provided by the embodiment of the present invention may set a corresponding port number for each SCTP link according to a prescribed rule, as long as the port numbers of the two ends of each SCTP link are not the same.

Based on the above-mentioned port number planning principle, in order to conveniently plan the port numbers of multiple SCTP links established by the same group of IPs, when the first SCTP link is established using a certain group of IPs for the first time, the system preset initial is used. The value is used as the port number of the first SCTP link, and the port number of the SCTP link established by the subsequent use of the certain group of IP addresses is adjusted based on the initial value, so that different port numbers are distinguished by different SCTPs. The effect of the link, so on the basis of the above method, if multiple SCTP links need to be established based on the same set of IP addresses, there are various methods for determining the port number of the subsequently established SCTP link, for example:

(1) Method 1:

The result of the operation is set to the second port number at both ends of the second SCTP link. Optionally, in the embodiment of the present invention, in order to ensure that the specific value saved by the second base station is the same as the specific value saved by the second base station, the implementation manner may be:

The system setting that is jointly connected by the first base station and the second base station sends the same preset value to the first base station and the second base station; or after the first base station determines its specific value, notifies the second base station, thereby ensuring two base stations. The specific values used are the same.

(2) Method 2:

Step A: determining, in the established SCTP link of the first base station, using the two ends of the IP The number of established SCTP links for the address;

The established SCTP link is an SCTP link that has the same IP address at both ends of the SCTP link to be built.

Step B: Set the second port number at both ends of the second SCTP link according to the quantity and the initial value.

Optionally, in this embodiment, the implementation manner of setting the second port number includes: the second port number is a sum of the quantity and the initial value, or the second port number is the quantity And the sum of the initial value and the random number.

In the prior art, the STCP link of all the base stations of the entire network is configured to use the same port number, and different SCTP links can be distinguished by different IP addresses, so that a large number of IP address resources are wasted. The provided method adaptively sets the port numbers of different SCTP links to different values, so that multiple SCTP links can be established in the same group of IP addresses, thereby effectively saving IP resources.

For a more detailed description of the solution provided by the embodiments of the present invention, the embodiments of the present invention are further described in detail below with reference to specific application environments.

As shown in Figure 2, base stations A, B, and C are shared by two carriers, and base station A and base station B, and base station B and base station C are adjacent base stations. If the base station, base station B, and base station C both operate in the "sub-carrier sharing" mode. The "sub-carrier sharing" mode means that the physical base station of one entity can be regarded as logically having multiple logical base stations, and each logical base station belongs to a different operator. Therefore, when each base station is marked, it may be marked according to the logical base station, and how many logical base station identifiers may be set correspondingly by the number of operators, and each logical base station identifier corresponds to each operator. For example, the base station C is shared by the carrier cnO and cnl, and the base station C has two logical base stations (the base station CO and the base station C1), wherein the base station CO and the base station C1 correspond to the operators cnO and cnl, respectively. In this embodiment, if base station A is configured with an IP address IPa; base station B is configured with an IP address IPb; base station C is configured with two IP addresses IPcO and IPcl.

For the configuration of the three base stations, the IP address configuration policy of the SCTP link of the three base stations may be as shown in Table 1: Base station

A B C

Operator

CnO ( PLMNO ) IPcO

IPa IPb

Cnl ( PLMN1 ) IPcl Table 1

For the specific embodiment shown in FIG. 2 and Table 1, when the SCTP link between the base station A and the base station B is triggered, the method includes:

Taking the base station B as an example, the base station B can be configured with a total of eight SCTP links. In this embodiment, an X2 interface can be uniquely identified by a triplet (the local PLMN, the peer PLMN, and the peer ID), and the X2 interface and A possible correspondence between the corresponding SCTP links is shown in Table 2:

Table 2

The method provided in the embodiment of the present invention is specifically described as an example. The base station A has only one IP address, so no matter what kind of carrier establishes the X2 interface and the SCTP link, the same is adopted. The group IP address is established, but different SCTP links are distinguished by different port numbers. In addition, because the base station C allocates different IP addresses for different operators, when the base station C establishes the X2 interface, if different operators determine that different IP address groups are used to distinguish the X2 interface from the SCTP link; On the premise, the X2 interface and the SCTP link are established through the same set of IP addresses, and then the SCTP links established by the peer port numbers are set differently by setting different SCTP links.

The contents listed in the first column of Table 2 are the triplet parameters of the peer base station establishing the X2 interface, and the second The content of the example is the local IP address of the peer base station and the port number of the last formed SCTP link of the X2 interface. The specific implementation can be:

1. Establish an SCTP link for base station B and base station A:

According to the content of the table 2, it can be determined that the base station B and the base station A establish the SCTP link for the first time on the basis of the first carrier, and corresponding to the contents of the entry corresponding to the first line in Table 2, where the pair of the SCTP link The port number is the initial value I. If the subsequent base station B establishes an SCTP link with the base station A, the port number is determined according to the first establishment of the SCTP link. If the SCTP link is established for the Nth time, the value of N can be accumulated based on the initial value I, so that the port numbers of the successively established SCTP links are different.

The specific description of the first line in this embodiment is as follows: When the base station B establishes an X2 interface and an SCTP link with the base station A as the local station, the obtained triplet parameters are (PLMN0, PLMN0, A), that is, the base station B and The X2 interface between the base stations A; wherein, the base station B and the base station A establish an SCTP link (IPb, IPa, I), the source IP address of the SCTP link is IPb, and the destination IP address is IPa, and the corresponding IP address group is utilized. The port number of both ends of the SCTP link established by (IPb, IPa) is set to the initial value I.

2. Establish an SCTP link for base station B and base station C:

In this embodiment, the base station C has different IPs corresponding to different operators, that is, CnO (PLMN0) corresponds to IPcO; Cnl (PLMN1) corresponds to IPcl. Base station B only has one IP. Therefore, when setting the port number of the SCTP link, the last port number needs to be set based on the IP address of the different group according to the carrier, that is, when the operator CnO and Cnl establish the SCTP link for the first time, the first established The port numbers of the two ends of the SCTP link are all initial values, because the SCTP links corresponding to different carriers are distinguished by different IP addresses. However, if multiple SCTP links need to be established on the same carrier, you need to set different port numbers to distinguish the established SCTP links. Therefore, when the base station B establishes an SCTP link with the base station C, the source IP address and the destination IP address of the corresponding SCTP link are IPb and IPcO, respectively, when the X2 interface corresponding to the PLMN0, PLMN0, and C is established. If there is no SCTP link with the source IP address and the destination IP address being IPb and IPcO respectively, the port number at both ends of the SCTP link is set to the initial value I;

IP address at both ends of the SCTP link when establishing the SCTP link corresponding to (PLMNO, PLMN1, C) The address is IPb and IPcl respectively, and the base station does not have an SCTP link with the source IP address and the destination IP address being IPb and IPcl respectively, and the port number of the two ends of the SCTP link is set to an initial value I;

When the SCTP link corresponding to (PLMN1, PLMNO, C) is established, the port numbers of the two ends of the SCTP link are IPb and IPcO respectively, and the base station B already has an SCTP link with IP addresses and IPcOs at both ends. The port number of both ends of the SCTP link to be established is set to 1+ 1;

When the SCTP link corresponding to (PLMN1, PLMN1, C) is established, the IP addresses of the two ends of the SCTP link are IPb and IPcl respectively. The base station B already has an SCTP link with IP addresses and IPcls at both ends. The port number at both ends of the SCTP link to be established is set to 1+1.

The method provided by the embodiment of the present invention can adaptively configure the port number of each SCTP link when establishing an SCTP link. When multiple SCTP links are established between base stations configured with a single IP address, multiple SCTP links with the same IP address and different port numbers are adaptively generated. That is, you need to configure different IP addresses to distinguish different SCTP links to save IP address resources. As the X2 establishment process is triggered by the base stations at both ends of the X2 interface, the SCTP port numbers of the two base stations are consistent. In addition, the solution is compatible with a scenario in which a base station is configured with a single IP and multiple IP addresses are configured.

In the solution provided by the embodiment of the present invention, if the X2 is established between the station A and the base station B, the base station A and the base station B simultaneously perform the implementation contents provided by the embodiment of the present invention. In addition, when the base station A and the base station B perform X2 establishment, during the processing of the base station A, the local end refers to the base station A, and the opposite end refers to the base station B; during the processing of the base station B, the local end refers to the base station B. The opposite end refers to base station A. In addition, since the peer base station to be established with the X2 interface is established by the X2 interface at the same time, and the establishment process performed by the two base stations is the same, only one side is described in this implementation for the sake of simplicity of description.

The following uses FIG. 3 and FIG. 4 as an example to describe different communication devices used to implement the actions performed by the first base station in the foregoing method embodiments.

As shown in FIG. 3, according to the foregoing method embodiment, the present invention further provides a base station 30, where the base station 30 includes:

The obtaining unit 301 is configured to determine that an X2 interface with the second base station is to be established, and obtain the IP addresses of the two ends of the flow control transmission protocol SCTP link corresponding to the X2 interface, where the two ends are IP addresses. The address includes: an IP address of the base station 30 and an IP address of the second base station;

The determining unit 302 is configured to determine whether a correspondence between the IP addresses of the two ends and the established SCTP link is saved, and obtain a determination result;

The determining unit 302 is further configured to determine, by querying the saved relationship table, whether a correspondence between the IP addresses of the two ends and the established SCTP link is saved, where the relationship table includes the base station. Correspondence between all established SCTP links and IP addresses of 30 and all established SCTP links and port numbers of the base station 30.

The link establishing unit 303 is configured to establish the SCTP link according to the determination result, where the base station 30 establishes the SCTP link according to the determination result, and includes any one of the following:

When the determination result is no, the base station 30 establishes a first SCTP link, and sets a first port number at both ends of the first SCTP link to an initial value;

When the determination result is YES, the base station 30 establishes a second SCTP link, and sets a port number of the two ends of the second SCTP link to a second port number, the second port number and the established SCTP The port numbers on both ends of the link are different.

The link establishing unit 303 is further configured to use the system preset value or the input value received by the base station 30 as an initial value.

In the embodiment of the present invention, based on the above-mentioned port number planning principle, in order to conveniently plan the port numbers of multiple SCTP links established by the same group of IPs, when the first SCTP link is established by using a certain group of IPs for the first time, The initial value of the system preset is used as the port number of the first SCTP link, and the port number of the SCTP link established by using the certain group of IP addresses is adjusted based on the initial value to achieve different If the port number is different from the effect of the different SCTP links, the method of setting the port number (that is, the second port number) of the subsequently established SCTP link includes:

The link establishing unit 303 sets the port number of the two ends of the second SCTP link to the second port number, including:

The result of the operation is set to the second port number at both ends of the second SCTP link. The link establishing unit 303 sets the port number of the two ends of the second SCTP link to the second port number, including:

Determining the number of established SCTP links using the IP addresses of the two ends of the established SCTP link of the base station 30;

In this manner, the link establishing unit 303 uses the sum of the quantity and the initial value, or the sum of the quantity, the initial value, and the random number as the second port number.

As shown in FIG. 4, the present invention further provides another base station 40 for determining a port number for performing the method for determining a port number in the foregoing various embodiments, the base station 40 including at least one processor 401 (for example, a CPU), at least A network interface 402 or other communication interface, memory 403, and at least one communication bus 404 are used to effect connection communication between these devices. The processor 401 is configured to execute an executable module, such as a computer program, stored in the memory 403. The memory 403 may include a high-speed random access memory (RAM), and may also include a non-volatile memory, for example, at least one disk storage device. The communication connection between the system gateway and at least one other network element is implemented by at least one network interface 402 (which may be wired or wireless), and may use an Internet, a wide area network, a local area network, a metropolitan area network, or the like.

In some embodiments, when the port number planning base station 40 provided by the present invention triggers the establishment of the X2 interface communicating with the second base station, the memory in the port number planning base station 40 stores the program 4031, and the program can be executed by the processor. The program includes: determining that an X2 interface is required to be established with the second base station; and obtaining an IP address of the two ends of the flow control transmission protocol SCTP link corresponding to the X2 interface, where the two end IP addresses include: the base station 40 The IP address and the IP address of the second base station; determining whether the correspondence between the IP addresses of the two ends and the established SCTP link is saved, and obtaining a judgment result; establishing the SCTP link according to the judgment result; The base station 40 establishes the SCTP link according to the determination result, and includes any one of the following: when the determining result is no, the base station 40 establishes a first SCTP link, and sets a first end of the first SCTP link. The port number is set to an initial value; when the determination result is YES, the base station 40 establishes a second SCTP link, and the second SCTP is established. The port number at both ends of the link is set to a second port number, and the second port number is different from the port number at both ends of the established SCTP link.

The foregoing one or more technical solutions in the embodiments of the present application have at least the following technical effects: The solution provided by the embodiment of the present invention can adaptively configure the local port corresponding to the SCTP link when establishing the SCTP link. number. When multiple X2 interfaces are established between base stations configured with a single IP address, multiple SCTP links with the same IP address and different port numbers are adaptively generated. That is, you need to configure different IP addresses to distinguish different SCTP links to save IP address resources. The X2 establishment process is triggered by the base station at both ends of the X2 interface. This ensures that the two base stations are consistent with the planned SCTP port number. In addition, the solution is compatible with a scenario in which a base station is configured with a single IP and multiple IP addresses are configured.

It will be apparent to those skilled in the art that, for convenience and brevity of description, only the division of each functional unit described above is exemplified. In practical applications, the above-mentioned function assignment can be completed by different functional units as needed. The internal structure of the device is divided into different functional units to perform all or part of the functions described above. For the specific working process of the system, the device and the unit described above, reference may be made to the corresponding process in the foregoing method embodiments, and details are not described herein again.

In the several embodiments provided herein, it should be understood that the disclosed systems, devices, and methods may be implemented in other ways. For example, the device embodiments described above are merely illustrative. For example, the division of the unit or unit is only a logical function division. In actual implementation, there may be another division manner, for example, multiple units or components may be used. Combined or can be integrated into another system, or some features can be ignored, or not executed. Alternatively, the coupling or direct coupling or communication connection between the various components shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be electrical, mechanical or otherwise. The components displayed for the unit may or may not be physical units, ie may be located in one place, or may be distributed over multiple network units. Some or all of the units may be selected according to actual needs to achieve the objectives of the solution of the embodiment.

In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one single unit. Yuanzhong. The above integrated unit can be implemented in the form of hardware or in the form of a software functional unit.

The integrated unit, if implemented in the form of a software functional unit and sold or used as a standalone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application, in essence or the contribution to the prior art, or all or part of the technical solution may be embodied in the form of a software product stored in a storage medium. The instructions include a plurality of instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) or a processor to perform all or part of the steps of the methods described in various embodiments of the present application. The foregoing storage medium includes: a U disk, a removable hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, and the like, which can store program codes. .

The above embodiments are only used to describe the technical solutions of the present application in detail, but the description of the above embodiments is only for helping to understand the method and the core idea of the present invention, and should not be construed as limiting the present invention. Those skilled in the art will be able to devise variations or alternatives that are conceivable within the scope of the present invention.

Claims

Rights request

1. A method for determining a port number, characterized in that the method includes:

The first base station determines that it needs to establish an X2 interface with the second base station;

The first base station obtains the IP addresses at both ends of the flow control transmission protocol SCTP link corresponding to the X2 interface, where the IP addresses at both ends include: the IP address of the first base station and the IP address of the second base station. IP address;

The first base station determines whether the corresponding relationship between the IP addresses of the two ends and the established SCTP link is saved, and obtains a determination result;

The first base station establishes the SCTP link according to the judgment result;

Wherein, the first base station establishing the SCTP link according to the judgment result includes any of the following:

When the judgment result is no, the first base station establishes the first SCTP link and sets the first port numbers at both ends of the first SCTP link to the initial value;

When the judgment result is yes, the first base station establishes a second SCTP link, and sets the port numbers at both ends of the second SCTP link as a second port number, and the second port number is the same as the already-used port number. The port numbers at both ends of the SCTP link are different.

2. The method of claim 1, wherein the first base station determines whether the corresponding relationship between the IP addresses of both ends and the established SCTP link is saved, including:

The first base station determines whether the corresponding relationship between the IP addresses of the two ends and the established SCTP links is saved by querying the saved relationship table, where the relationship table includes all established SCTP links of the first base station. The corresponding relationship between links and IP addresses and the corresponding relationship between all established SCTP links and port numbers of the first base station.

3. The method of claim 1, wherein setting the port numbers at both ends of the second SCTP link as the second port number includes:

The initial value and the specific value N are calculated according to the same preset rules as the second base station, where the N is the same as the specific value saved by the second base station; The result of the operation is set as the second port number at both ends of the second SCTP link.

4. The method of claim 1, wherein setting the port numbers at both ends of the second SCTP link as the second port number includes:

Determine the number of established SCTP links using the IP addresses of both ends among all established SCTP links of the first base station;

The second port numbers at both ends of the second SCTP link are set according to the number and the initial value.

5. The method of claim 4, wherein the second port number is the sum of the quantity and the initial value, or the second port number is the quantity and the initial value. and the sum of random numbers.

6. The method according to any one of claims 1 to 5, characterized in that the initial value is a system preset value or an input value received by the first base station.

7. A base station, characterized in that the base station includes:

The acquisition unit is used to determine that an X2 interface needs to be established with the second base station, and to acquire the IP addresses at both ends of the flow control transmission protocol SCTP link corresponding to the X2 interface, where the IP addresses at both ends include: The IP address of the base station and the IP address of the second base station;

A judgment unit, used to judge whether the corresponding relationship between the IP addresses of both ends and the established SCTP link is saved, and obtain the judgment result;

A link establishment unit, configured to establish the SCTP link according to the judgment result; wherein, the base station establishing the SCTP link according to the judgment result includes any of the following:

When the judgment result is no, the base station establishes the first SCTP link and sets the first port numbers at both ends of the first SCTP link to the initial value;

When the judgment result is yes, the base station establishes a second SCTP link, and sets the port numbers at both ends of the second SCTP link as a second port number. The second port number is the same as the established SCTP link. The port numbers on both ends of the link are different.

8. The base station according to claim 7, wherein the determining unit is further configured to determine whether the relationship between the IP addresses of both ends and the established SCTP link is saved by querying the saved relationship table. The corresponding relationship, wherein the relationship table includes the corresponding relationship between all established SCTP links of the base station and the IP address and the corresponding relationship between all established SCTP links of the base station and the port number.

9. The base station according to claim 8, wherein the link establishing unit setting the port numbers at both ends of the second SCTP link to the second port number includes:

The initial value and the specific value N are calculated according to the same preset rules as the second base station, where the N is the same as the specific value saved by the second base station;

The result of the operation is set to the second port number at both ends of the second SCTP link.

10. The base station according to claim 7, wherein the link establishment unit setting the port numbers at both ends of the second SCTP link to the second port number includes:

Determine the number of established SCTP links using the IP addresses of both ends among all established SCTP links of the base station;

11. The base station according to claim 10, wherein the link establishment unit uses the sum of the quantity and the initial value, or the sum of the quantity, the initial value and a random number as the first Second port number.

12. The base station according to any one of claims 7 to 11, wherein the link establishment unit is further configured to use a system preset value or a received input value as the initial value.