WO2011113260A1

WO2011113260A1 - Method and device for processing configuration transfer

Info

Publication number: WO2011113260A1
Application number: PCT/CN2010/076382
Authority: WO
Inventors: 王毅
Original assignee: 中兴通讯股份有限公司
Priority date: 2010-03-19
Filing date: 2010-08-26
Publication date: 2011-09-22
Also published as: CN101820694B; CN101820694A

Abstract

A method and device for processing configuration transfer are provided in the present invention. According to the resources of itself, a target Evolved Node B (eNB) sets the number or the upper limit of the number of the self-built ports X2 which are between different networks and which are in the same network, so that more resources to be assigned are preferentially guaranteed for the requirement of setting up ports X2 for the source eNB in the same network. Consequently, the process of self-building the port X2 is reasonably controlled. Not only the function of self-building the ports X2 is ensured to be implemented, but also the limited resources of ports X2 are guaranteed to be reasonably assigned when ports X2 are self-built. And the performance of network self-organization is improved.

Description

Processing method and device for configuration transmission

TECHNICAL FIELD The present invention relates to the Long Term Evolution (LTE) system technology, and in particular, to a method and apparatus for performing configuration transmission processing between an evolved Node B (eNB, Evolved Node B) before the X2 interface is self-established. Background technique

A big feature of the LTE system different from other systems is the self-organization of the network, which includes the self-establishment of the X2 interface (interface between eNBs) between the two eNBs. The self-establishment of the X2 interface refers to the configuration transfer between two eNBs without an X2 interface and an existing S1 interface (interface between the eNB and the MME) between the related mobility management entity (MME, Mobility Management Entity). The message conveys the respective transport layer address information to ultimately achieve the purpose of establishing the X2 interface.

1 is a process in which a source eNB sends a configuration transfer message for establishing an X2 interface to a destination eNB, and a destination eNB returns a configuration transfer message as a response, which is described in the 36.413 protocol with reference to FIG. As shown in FIG. 1, if an eNB (hereinafter referred to as a source eNB) desires to establish an X2 interface with another eNB (hereinafter referred to as a target eNB), first, the source eNB sends an eNB configuration transmission to the MME ( The eNB CONFIGURATION TRANSFER message carries the target eNB identity (ID, identity) and source eNB ID information in the eNB configuration transmission message, and also carries the public land mobile network (PLMN, Public Land Mobile Network) of the active eNB and the destination eNB. ) Information. Then, the MME transparently transmits the information sent by the source eNB to the target eNB through the MME CONFIGURATION TRANSFER message. Then, after receiving the MME CONFIGURATION TRANSFER request message forwarded by the source eNB by the relevant MME, the target eNB may or may not select the source. The eNB replies with a response message. If the destination eNB also desires to establish an X2 interface with the source eNB, it may choose to respond by returning an eNB CONFIGURATION TRANSFER message to the source eNB (the message is also forwarded to the source eNB by the relevant MME by converting into an MME CONFIGURATION TRANSFER message). The message includes information about the target eNB to inform the source eNB to initiate self-establishment of the X2 interface between the two eNBs. If the destination eNB does not expect to establish an X2 interface with the source eNB, the source may be selected. If the request message of the eNB does not respond, the self-establishment of the X2 interface will not be completed between the two eNBs.

From the existing method of implementing the X2 interface self-establishment shown in FIG. 1, how does the destination eNB decide whether to transmit the message in response to the configuration of the source eNB or not in response to the configuration of the source eNB. If the destination eNB chooses not to respond to the configuration transfer message initiated by the source eNB, the network self-organization of the LTE system cannot be implemented; if the destination eNB decides to respond to the configuration transmission message sent by the source eNB without a difference, it always responds, then it must exist. When there are multiple source eNBs that initiate the X2 interface self-establishment to the same destination eNB, the destination eNB X2 interface resources are quickly exhausted, and since the LTE system has another feature of network sharing, then there is still a destination eNB because In response to the X2 interface self-establishment request sent by the source eNB of the different network, the X2 interface sent by the source eNB belonging to the same network is self-established because the target eNB X2 port resource is exhausted and cannot respond, eventually resulting in X2 belonging to the same network. The situation that the interface cannot be established does not meet the requirements of the operator's network planning and organization. Summary of the invention

An object of the present invention is to provide a processing method for configuring transmission, which is used to solve the problem of improper configuration transmission of a configuration eNB sent by a source eNB in a configuration transmission process before an X2 interface self-establishment request in the prior art. The X2 interface that is not implemented or the X2 interface resource of the destination eNB is exhausted and the X2 interface of the same network cannot be implemented.

Another object of the present invention is to provide a configuration transmission that is compatible with the processing method of the above configuration transmission. The processing device sent.

A processing method for configuring transmission, comprising: processing, by a destination evolved Node B eNB, a configuration transmission message sent by a source evolved Node B eNB via an mobility management entity MME for requesting establishment of an X2 interface between eNBs, the processing method further Includes:

The destination eNB selects the number of X2 interfaces that can be self-established only between eNBs belonging to the same network according to the total number of X2 interfaces that can be self-established by the eNB;

When the destination eNB receives the configuration transfer message from the source eNB, the target eNB determines whether the target eNB and the source eNB belong to the same by checking the network information of the source eNB and the network information of the target eNB carried in the MME transmission message. The internet;

The destination eNB determines an upper limit of the number of X2 interfaces that can be self-established according to the result of the determination and the number of X2 interfaces that can be established by the eNBs that belong to the same network.

The destination eNB determines whether the number of X2 interfaces that have been self-established is less than the upper limit of the number of X2 interfaces that can be self-established. If not, the target eNB returns an eNB configuration transmission message as a response to the MME, otherwise, does not return to the MME. The eNB as the responding configures the transfer message.

The network information of the source eNB is the public land mobile network PLMN information corresponding to the source eNB; the network information of the destination eNB is the PLMN information corresponding to the destination eNB;

Determining whether the destination eNB and the source eNB belong to the same network includes:

If the PLMN message corresponding to the source eNB is consistent with the PLMN information corresponding to the target eNB, it is determined that the target eNB and the source eNB belong to the same network.

The upper limit of the number of the X2 interfaces that the eNB can establish is self-established. The eNB determines that the target eNB and the source eNB belong to the same network, and the destination eNB uses the total number of self-established X2 interfaces as self-establishable. The maximum number of X2 interfaces;

If it is determined that the destination eNB and the source eNB do not belong to the same network, the destination eNB subtracts the total number of self-established X2 interfaces and can only self-build between eNBs belonging to the same network. The difference obtained after the number of X2 interfaces is set as the upper limit of the number of self-established X2 interfaces.

The destination eNB selects the number of X2 interfaces that can be established only between eNBs belonging to the same network according to a predetermined number or a ratio of the total number of X2 interfaces that can be self-established.

A configuration device for transmitting a configuration, configured in a destination evolved Node B eNB, configured to transmit, by a source eNB to a source evolved Node B eNB, by using a mobility management entity MME, to request to establish an X2 interface between the eNBs Processing, the processing device further includes: a network X2 interface number selection unit, configured to select, according to the total number of X2 interfaces that can be self-established, the number of X2 ports that can be self-established between eNBs belonging to the same network;

The eNB peer-to-peer determining unit is configured to determine, by the network information of the source eNB and the network information of the target eNB, the network information of the source eNB and the network information of the target eNB carried in the configuration transmission message, when the configuration transmission message is received from the mobility management entity MME, Belong to the same network;

The X2 interface number upper limit determining unit is configured to determine an upper limit of the number of X2 interfaces that the source eNB can self-establish according to the result of the determination and the number of X2 interfaces that can be established by the eNBs that belong to the same network.

a response unit, configured to determine whether the number of X2 interfaces that have been self-established by the target eNB is less than an upper limit of the number of X2 interfaces that can be self-established, and when less than, return an eNB configuration transmission message as a response to the MME; The eNB configuration transfer message as a response is returned to the MME.

The eNB peer-to-peer determining unit is configured to determine that the target eNB and the source eNB belong to the same network when the PLMN message corresponding to the source eNB is consistent with the PLMN information corresponding to the target eNB.

The X2 interface number upper limit determining unit includes:

a first X2 port number upper limit determining module, configured to determine, according to the eNB, a network As a result of the eNB and the source eNB being in the same network, the total number of self-established X2 interfaces is used as the upper limit of the number of self-establishable X2 interfaces;

a second X2 port number upper limit determining module, configured to reduce the total number of self-established X2 interfaces by only belonging to the same network, according to a result that the target eNB of the eNB co-network determining unit does not belong to the same network as the source eNB The difference between the number of X2 interfaces established between the eNBs and the number of self-established X2 ports.

The same network X2 port number selection unit is specifically configured to select a self-established X2 interface between eNBs belonging to the same network according to a proportional relationship with the total number of X2 interfaces that can be self-established by itself or according to a predetermined number. quantity.

The technical effect of the present invention is that the target eNB can set the number or maximum number of self-established X2 interfaces between different networks and the same network according to its own resources, thereby preferentially ensuring the establishment of X2 of source eNBs belonging to the same network. The interface request has more resources for allocation, thus reasonably controlling the self-establishment process of the X2 interface, which not only ensures the realization of the self-established function of the X2 interface, but also ensures the reasonable allocation of the limited X2 interface resources when the X2 interface is self-established, and improves the Network self-organizing performance. DRAWINGS

1 is a schematic diagram of a process in which an existing source eNB sends a configuration transfer message for establishing an X2 port to a destination eNB, and a destination eNB returns a configuration transfer message as a response;

2 is a schematic diagram of a processing device for configuring transmission according to the present invention;

3 is a schematic diagram showing a specific structure of an X2 port number upper limit determining unit in FIG. 2; FIG. 4 is a flowchart of a processing method of the configuration transfer of the present invention. detailed description

Some shorthand and abbreviated technical terms are used in the description of the present invention, where eNB stands for evolved Node B; source eNB stands for source evolved Node B; destination eNB stands for destination evolved Node B; X2 interface generation The interface between the table eNBs, that is, the self-established interface between the source eNB and the destination eNB; the MME represents the mobility management entity; the PLMN represents the public land mobile network; the same network represents the same network; The eNB is located in the same public land mobile network, and in particular, the source eNB and the destination eNB are located on the same public land mobile network.

2 is a processing device for configuring transmission according to the present invention. The processing device of the present invention is generally disposed in a destination eNB, and is used by a destination eNB to perform a configuration transmission message sent by a source eNB via an MME for requesting establishment of an inter-eNB interface, that is, an X2 interface. deal with. Since the source eNB is the eNB that sends the request, the target eNB is the eNB that receives the request and responds, and in the actual communication environment, each eNB may become the target eNB, so each eNB in the system is provided with the configuration of the present invention. Transmitting device.

Referring to FIG. 1, the processing device for configuration transmission of the present invention includes:

The number of X2 interfaces on the same network is used to select the number of X2 ports that can be established between eNBs belonging to the same network according to the total number of X2 interfaces that can be self-established.

The eNB, the same network determining unit, is configured to: when receiving the configuration transmission message from the MME, check whether the target eNB and the source eNB belong to the same network by checking the network information of the source eNB and the network information of the destination eNB carried in the transmission message. Net judgment

The X2 port number upper limit determining unit is configured to determine an upper limit of the number of X2 interfaces that the source eNB can self-establish according to the result of the same network determination and the number of X2 interfaces that can be self-established only between the eNBs belonging to the same network;

The acknowledgment unit is configured to determine whether the number of X2 interfaces that have been self-established by the target eNB is smaller than the upper limit of the number of X2 interfaces that can be self-established, and if not, return an eNB configuration transmission message as a response to the MME, and vice versa. Returns the eNB configuration transfer message as a response.

In the present invention, the network information of the source eNB is the PLMN information corresponding to the source eNB, and the network information of the target eNB is the PLMN information corresponding to the target eNB. As mentioned above, due to the source eNB The configuration transmission message received from the MME carries the ID information of the target eNB, the ID information of the source eNB, the PLMN information of the target eNB, and the PLMN information of the source eNB. Therefore, by comparing the information, it is determined whether the target eNB is the same as the source eNB. The internet.

If the PLMN message corresponding to the source eNB is consistent with the PLMN information corresponding to the target eNB, the eNB peer determining unit determines that the destination eNB and the source eNB belong to the same network.

As shown in FIG. 3, the X2 interface number upper limit determining unit includes or sets: a first X2 port number upper limit determining module, which is used according to the eNB, in order to adapt to the case where the target eNB and the source eNB belong to the same network and do not belong to the same network. The determination result of the destination eNB and the source eNB of the network determining unit belongs to the same network, and the total number of the self-established X2 interfaces is used as the first upper limit of the self-establishable X2 interface; the second X2 port number upper limit determining module is configured to The determination result that the destination eNB of the eNB and the source eNB does not belong to the same network, and the total number of self-established X2 ports is subtracted from the number of X2 ports that can be established only between eNBs belonging to the same network. The latter value is taken as the second maximum number of self-established X2 interfaces.

Since the first upper limit of the X2 interface is greater than the second upper limit of the X2 interface, the eNB of the present invention can first ensure that the request for establishing the X2 interface initiated by the eNB on the same network has more resources under the same conditions.

In addition, the number of the same network X2 interface selection unit is proportional to the total number of X2 interfaces that can be self-established, such as 1/5; or, according to a predetermined number, such as two, the selection can only be between eNBs belonging to the same network. The number of self-established X2 interfaces is two.

On the other hand, the present invention further provides a processing method for configuring transmission, which is used by the destination eNB to process a configuration transmission message sent by the source eNB via the MME for requesting establishment of an interface between the eNBs, that is, an X2 interface.

4 is a flowchart of a processing method of configuration transmission according to the present invention. As shown in FIG. 4, the method of the present invention includes the following steps:

Step 400: The target eNB selects only according to the total number of X2 interfaces that can be self-established. The number of X2 interfaces that can be self-established between eNBs belonging to the same network.

Step 401: When the target eNB receives the configuration transfer message from the source eNB, the target eNB checks whether the target eNB and the source eNB belong to the network information of the source eNB and the network information of the target eNB carried in the MME. The same network is determined on the same network.

Step 402: The eNB determines the maximum number of X2 interfaces that can be self-established based on the number of X2 interfaces that can be established by the eNB and the eNBs that belong to the same network.

Step 403 to step 404: The eNB determines that the number of X2 interfaces that have been self-established is less than the upper limit of the number of X2 interfaces that can be self-established, and the destination eNB returns an eNB configuration transmission message as an answer to the MME.

If it is determined that the number of X2 interfaces that have been self-established is not less than the upper limit of the number of X2 interfaces that can be self-established, the destination eNB does not return the eNB configuration transmission message as a response to the MME.

Similarly, in the method of the present invention, the network information of the source eNB is the PLMN information corresponding to the source eNB, and the network information of the target eNB is the PLMN information corresponding to the destination eNB, if the PLMN message corresponding to the source eNB is related to the PLMN information corresponding to the target eNB. If they are consistent, it is determined that the destination eNB and the source eNB belong to the same network.

In addition, the target eNB determines that the upper limit of the number of X2 ports that can be self-established is the upper limit of the number of X2 interfaces that can be self-established. If it is determined that the destination eNB and the source eNB do not belong to the same network, the destination eNB subtracts the total number of X2 interfaces used for establishing the X2 interface from the number of X2 interfaces that can be established between the eNBs belonging to the same network. Establish the maximum number of X2 ports.

In the method of the present invention, the target eNB is also selected according to a predetermined number or a ratio of the total number of X2 interfaces that can be self-established by itself, and can only be selected between eNBs belonging to the same network. The number of self-established X2 interfaces.

The processing method of the target eNB is further described in the following two embodiments in conjunction with FIG.

Assume that the number of X2 interface resources that the eNB can use for the X2 interface is 10, and the number of resources that the destination eNB has established and occupied by the X2 interface is 8.

As shown in FIG. 4, in the first embodiment, in step 400, the destination eNB sets the number of X2 interface resources that are self-established by the X2 interface between the eNBs of the same network to be 2;

In step 401, the destination eNB receives the MME configuration transmission message (see FIG. 1), and checks whether the PLMN corresponding to the source eNB and the PLMN corresponding to the destination eNB in the message are the same, which is assumed to be different in the first embodiment;

In step 402, the destination eNB selects the value after subtracting or subtracting the number of self-established X2 interfaces (ie, 2) that can only be used for the same network from the total number of X2 interfaces available for self-establishment (ie, 10). As the upper limit of the number of self-established numbers of the X2 interface, that is, 8 (10-2=8) is used as the upper limit of the self-established number of the X2 interface;

In step 403, the destination eNB determines that the number of X2 interfaces that have been self-established (here, 8) is not less than the upper limit of the number of X2 interfaces that can be used for self-establishment of the X2 interface (here, 8), and the process ends.

As shown in FIG. 4, in the second embodiment, in step 400, the destination eNB sets the number of X2 interface resources self-established by the X2 interface between the eNBs that can only be used in the same network to be 2;

In step 401, the destination eNB receives the MME configuration transmission (CONFIGURATION)

The TRANSFER message is to check whether the PLMN corresponding to the source eNB and the PLMN corresponding to the destination eNB are the same in the message, and it is assumed that the two are the same in this embodiment;

In step 402, the destination eNB uses the total number of X2 interfaces available for self-establishment, that is, 10 as the upper limit of the number of self-established X2 interfaces;

In step 403, the target eNB determines the number of X2 interfaces that have been self-established (this 8) is less than the upper limit of the number of X2 interfaces that can be used for self-established X2 interface (in this case, 10), and proceeds to step 404;

In step 404, the destination eNB returns an eNB Configuration Transfer (CONFIGURATION TRANSFER) message as a response to the corresponding MME, and then ends the flow.

The present invention draws the upper limit of the self-established connection between the different networks and the X2 interface between the same network according to the self-resource, and after receiving the MME CONFIGURATION TRANSFER message, judges the request to be self-established according to the content in the message. Whether the two eNBs belong to the same network, and whether the target eNB returns the eNB CONFIGURATION TRANSFER message for the response according to whether the number of X2 interfaces that have been self-established is less than the corresponding upper limit, and finally implements reasonable control for the self-establishment of the X2 interface. The process not only ensures the realization of the self-established function of the X2 interface, but also ensures the reasonable allocation of the limited X2 interface resources when the X2 interface is established, and improves the performance of the network self-organization.

Although the invention has been described in detail above, the invention is not limited thereto, and various modifications may be made by those skilled in the art in accordance with the principles of the invention. Therefore, modifications made in accordance with the principles of the present invention should be construed as falling within the scope of the present invention.

Claims

Claim

A processing method for configuring transmission, comprising: processing, by a destination evolved Node B eNB, a configuration transfer message sent by a source evolved B node eNB via a mobility management entity MME for requesting establishment of an X2 interface between eNBs, characterized by Therefore, the processing method further includes:

The processing method according to claim 1, wherein the network information of the source eNB is public land mobile network PLMN information corresponding to the source eNB; and the network information of the target eNB is PLMN information corresponding to the target eNB;

The processing method according to claim 1 or 2, wherein the target eNB determines that the upper limit of the number of X2 interfaces that can be self-established includes:

If it is determined that the destination eNB and the source eNB belong to the same network, the target eNB uses the total number of self-established X2 interfaces as the upper limit of the number of self-establishable X2 interfaces; If it is determined that the destination eNB and the source eNB do not belong to the same network, the destination eNB subtracts the total number of X2 interfaces from the established X2 interface only after the number of X2 interfaces established between the eNBs belonging to the same network. The resulting difference is the upper limit of the number of self-established X2 interfaces.

The processing method according to claim 1, wherein the target eNB selects only the eNBs belonging to the same network according to a predetermined number or a ratio of the total number of X2 interfaces that can be self-established. The number of self-established X2 interfaces.

A configuration device for configuring transmission, configured in the destination evolved Node B eNB, configured by the source eNB to send, by the source evolved Node B eNB, the mobility management entity MME, to request to establish an X2 interface between the eNBs. The message is processed for processing, and the processing device further includes:

The processing device according to claim 5, wherein the network information of the source eNB is public land mobile network PLMN information corresponding to the source eNB; and the network information of the target eNB is PLMN information corresponding to the target eNB; The eNB peer-to-peer determining unit is configured to determine that the target eNB and the source eNB belong to the same network when the PLMN message corresponding to the source eNB is consistent with the PLMN information corresponding to the target eNB.

The processing device according to claim 5 or 6, wherein the X2 interface number upper limit determining unit comprises:

The first X2 port number upper limit determining module is configured to use the total number of self-established X2 interfaces as the upper limit of the number of self-establishable X2 interfaces, according to the result that the destination eNB and the source eNB of the eNB network determining unit belong to the same network. ;

The processing device according to claim 5, wherein the same network X2 port number selection unit is specifically configured to be proportional to the total number of X2 interfaces that can be self-established by itself, or according to a predetermined number. Select the number of X2 interfaces that can only be established between eNBs belonging to the same network.