CN109275169A - According to the method for distance selection SeNB - Google Patents
According to the method for distance selection SeNB Download PDFInfo
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- CN109275169A CN109275169A CN201811214917.6A CN201811214917A CN109275169A CN 109275169 A CN109275169 A CN 109275169A CN 201811214917 A CN201811214917 A CN 201811214917A CN 109275169 A CN109275169 A CN 109275169A
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- menb
- mme
- senb
- connection
- access point
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/0005—Control or signalling for completing the hand-off
- H04W36/0011—Control or signalling for completing the hand-off for data sessions of end-to-end connection
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W48/00—Access restriction; Network selection; Access point selection
- H04W48/08—Access restriction or access information delivery, e.g. discovery data delivery
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W48/00—Access restriction; Network selection; Access point selection
- H04W48/20—Selecting an access point
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/10—Connection setup
- H04W76/11—Allocation or use of connection identifiers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/20—Manipulation of established connections
- H04W76/25—Maintenance of established connections
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Computer Security & Cryptography (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
According to the method for distance selection SeNB, include the following steps: that step S101:UE establishes connection with local MeNB first；Step S102: local MeNB judges that the connection that the UE and MeNB are established is that the connection switched from other MeNB, or the connection initiated for the first time on local MeNB if it is switching from the connection of other MeNB then follow the steps S103；It is no to then follow the steps S105；Step S103: local MeNB sends inquiry request message to MME, which includes at least the access point identity information that MeNB and MME is UE distribution.
Description
Technical field
The present invention relates to network communication fields.
Background technique
3GPP LTE is the technology for enabling high speed packet communication.For include be intended to reduce user and provider at
Originally, many schemes have been proposed in the LTE target for improving service quality and expansion and promotion covering and power system capacity.3GPP
LTE is required to reduce every bit cost, is increased service availability, the flexible use of frequency band, simple structure, open interface and end
The appropriate power consumption at end is as more advanced requirement.
It is considered being hopeful to cope with mobile service surge using the cell (small cell) of low power nodes, it is especially right
It is disposed in indoors with the hot spot in outdoor scene.Low power nodes generally mean that its transimission power lower than grand node and base station
(BS) node of classification, for example, pico- and femto evolution node B (eNB) is applicatory.For the land UMTS of evolution
The cell enhancing that ground is wirelessly electrically accessed the UMTS Terrestrial Radio Access Network network (E-UTRAN) of (E-UTRA) and evolution will concentrate
The additional function of enhancing performance in the hot spot region using the indoor and outdoors of low power nodes.
For one of the potential solution of cell enhancing, dual link has been discussed.Dual link be used to refer to
Fixed UE consumption is by the operation of the radio resource provided from at least two different nexus that non-ideal backhaul is connected.This
Outside, each eNB involved in the dual link for UE can undertake different effects.These effects need not necessarily depend on eNB's
Power grade and it can change between UE.Dual link can be one of the potential solution for cell enhancing.
In existing 3GPP LTE network, SeNB(secondary eNB) adding procedure is by MeNB (Master eNB)
It initiates and be used to establish the connection with UE at SeNB, in order to which UE will be supplied to from the radio resource of SeNB.
This process be used at least add the first community (PSCell) of SCG.
It is only recapitulative to describe the establishment process of dual link in existing 3GPP agreement, details is not implemented,
Also targetedly differentiation is not carried out to different connection attributes to handle.
And in 5G environment, since the deployment of MeNB and SeNB are more complicated, switching of the mobile terminal between a variety of eNB
Also more complicated.For example, the connection established for the first time is often of less demanding in timeliness to the demand of dual link, and for switching
Requirement from the connection of other MeNB to timeliness is higher.Original design has been difficult to meet demand.It is badly in need of a kind of new add
Add the scheme of SeNB to adapt to new demand.
It requires to distribute a SeNB, entire assigning process again for the UE after MeNB in any UE connection in the prior art
Program is complicated, and delay is bigger, is easy the data transmission generation pause and transition in rhythm or melody sense so as to UE, influences data transmission quality.
Summary of the invention
According to the method for distance selection SeNB, include the following steps:
Step S101:UE establishes connection with local MeNB first；
Step S102: the local MeNB connection for judging that the UE and MeNB is established is the connection switched from other MeNB, or at this
The connection initiated for the first time on ground MeNB thens follow the steps S103 if it is switching from the connection of other MeNB；It is no to then follow the steps
S105；
Step S103: local MeNB sends inquiry request message to MME, and it is UE distribution which, which includes at least MeNB and MME,
Access point identity information；
Step S104:MME inquires the UE with the presence or absence of holding according to the access point identity information that MeNB and MME is UE distribution
The SeNB of connection, if there is keeping the SeNB of connection, then whether the SeNB for further calculating holding connection is small at a distance from UE
In predetermined threshold value, then continue to keep the connection with the SeNB if it is being less than, and notify local MeNB, and terminate process, such as
Fruit is not less than or the SeNB without keeping connection, then distributes target SeNB for the UE, and execute step S106；
Step S105:MeNB sends addition requirement message to MME, is the access point identity of UE distribution including at least MeNB and MME
The routing iinformation of information and target SeNB；
Step S106:MME sends addition request message to target SeNB, which is sent to target SeNB from MME, includes at least
MME is the access point identity information of UE distribution；
Step S107: if SeNB is handled successfully, addition request confirmation message is sent to MME, otherwise, goes to step S110；It should
Message is sent to MME from target SeNB, is the access point identity information and source MeNB of UE distribution including at least SeNB and MME
The bearer related information that routing iinformation and target BS receive and refused；
Step S108:MME gives source MeNB to send addition command messages, which is sent to MeNB from MME, include at least MeNB and
MME is the access point identity information of UE distribution.
According to the method for distance selection SeNB, include the following steps:
Step S101:UE establishes connection with local MeNB first；
Step S102: the local MeNB connection for judging that the UE and MeNB is established is the connection switched from other MeNB, or at this
The connection initiated for the first time on ground MeNB thens follow the steps S103 if it is switching from the connection of other MeNB；It is no to then follow the steps
S105；
Step S103: local MeNB sends inquiry request message to MME, and it is UE distribution which, which includes at least MeNB and MME,
Access point identity information；
Step S104:MME inquires the UE with the presence or absence of holding according to the access point identity information that MeNB and MME is UE distribution
The SeNB of connection, if there is keeping the SeNB of connection, then whether the SeNB for further calculating holding connection is small at a distance from UE
In predetermined threshold value, then continue to keep the connection with the SeNB if it is being less than, and notify local MeNB, and terminate process, such as
Fruit is not less than or the SeNB without keeping connection, then distributes target SeNB for the UE, and execute step S106；
Step S105:MeNB sends addition requirement message to MME, is the access point identity of UE distribution including at least MeNB and MME
The routing iinformation of information and target SeNB；
Step S106:MME sends addition request message to target SeNB, which is sent to target SeNB from MME, includes at least
MME is the access point identity information of UE distribution；
Step S107: if SeNB is handled successfully, addition request confirmation message is sent to MME, otherwise, goes to step S110；It should
Message is sent to MME from target SeNB, is the access point identity information and source MeNB of UE distribution including at least SeNB and MME
The bearer related information that routing iinformation and target BS receive and refused；
Step S108:MME gives source MeNB to send addition command messages, which is sent to MeNB from MME, include at least MeNB and
MME is the access point identity information of UE distribution；
Step S109: if SeNB processing failure, addition request failure message is sent to MME, which sends from target SeNB
To MME, including at least the routing iinformation of access point identity information and source MeNB that SeNB and MME is UE distribution, and refusal
Reason；
Step S110:MME is transmitted to source MeNB for request failure message is added, which is sent to MeNB from MME, includes at least
MeNB and MME is the access point identity information and Reason For Denial of UE distribution.
The present invention is targetedly handled according to the different attribute of connection, is connected, can quickly be confirmed to handover
SeNB improves timeliness.And in the prior art, in 3GPP current agreement, all the attribute of connection was not carried out any
The considerations of, it is all the process flow developed on the basis of making no exception all connections.
The present invention sets MME to the central node of distribution SeNB, reduces the processing pressure of MeNB and SeNB.Centralization
Mechanism can also improve the success rate of distribution.And in the prior art, be all by between MeNB and SeNB by Signalling exchange come real
The addition of existing SeNB.
The present invention is the good improvement to existing protocol in 3GPP, it is proposed that has innovative completely new global solution
Certainly scheme, the solution of the present invention are expected to be adopted by 3GPP standard.Once becoming standard patent, to my company in independent intellectual
Strength in property right can greatly improve.
Connection is divided into the connection for the first time initiated in local MeNB, or switches the connection to come from other MeNB.For
Former connection, often there is the SeNB that can also be continued to use, be in the case where utilizing as far as possible, priority processing.To
The timeliness for substantially increasing distribution SeNB, reduces the time delay of handover.
Specific embodiment
This R&D team analyzes in LTE network, has found there is the delay of larger data after the delay of data transmission
In distribution SeNB link.Main cause is that the process of distribution SeNB is related to the participation of multiple network elements, needs multiple Signalling exchange.
We have consulted a large amount of 3GPP normative document and the technical solution of equipment supplier, find in the prior art,
The attribute currently connected is not handled differently.
According to ours the study found that the connection for being most difficult to tolerance to delay is handover connection.The present invention by pair
The specific aim of this kind of connection is handled, and is improved to the efficiency of this kind of connection distribution SeNB, to improve the processing of whole business
Efficiency.
Our most important handling principles be will connect be divided into local MeNB initiate connection for the first time, or from other
MeNB switches the connection to come.Former is connected, often there is the SeNB that can also be continued to use, and to utilize as far as possible
In the case where, priority processing.
Embodiment 1
According to the method for distance selection SeNB, include the following steps:
Step S101:UE establishes connection with local MeNB first；
Step S102: the local MeNB connection for judging that the UE and MeNB is established is the connection switched from other MeNB, or at this
The connection initiated for the first time on ground MeNB thens follow the steps S103 if it is switching from the connection of other MeNB；It is no to then follow the steps
S105；
Step S103: local MeNB sends inquiry request message to MME, and it is UE distribution which, which includes at least MeNB and MME,
Access point identity information；
Step S104:MME inquires the UE with the presence or absence of holding according to the access point identity information that MeNB and MME is UE distribution
The SeNB of connection, if there is keeping the SeNB of connection, then whether the SeNB for further calculating holding connection is small at a distance from UE
In predetermined threshold value, then continue to keep the connection with the SeNB if it is being less than, and notify local MeNB, and terminate process, such as
Fruit is not less than or the SeNB without keeping connection, then distributes target SeNB for the UE, and execute step S106；
Step S105:MeNB sends addition requirement message to MME, is the access point identity of UE distribution including at least MeNB and MME
The routing iinformation of information and target SeNB；
Step S106:MME sends addition request message to target SeNB, which is sent to target SeNB from MME, includes at least
MME is the access point identity information of UE distribution；
Step S107: if SeNB is handled successfully, addition request confirmation message is sent to MME, otherwise, goes to step S110；It should
Message is sent to MME from target SeNB, is the access point identity information and source MeNB of UE distribution including at least SeNB and MME
The bearer related information that routing iinformation and target BS receive and refused；
Step S108:MME gives source MeNB to send addition command messages, which is sent to MeNB from MME, include at least MeNB and
MME is the access point identity information of UE distribution.
Embodiment 2
According to the method for distance selection SeNB, include the following steps:
Step S101:UE establishes connection with local MeNB first；
Step S102: the local MeNB connection for judging that the UE and MeNB is established is the connection switched from other MeNB, or at this
The connection initiated for the first time on ground MeNB thens follow the steps S103 if it is switching from the connection of other MeNB；It is no to then follow the steps
S105；
Step S103: local MeNB sends inquiry request message to MME, and it is UE distribution which, which includes at least MeNB and MME,
Access point identity information；
Step S104:MME inquires the UE with the presence or absence of holding according to the access point identity information that MeNB and MME is UE distribution
The SeNB of connection, if there is keeping the SeNB of connection, then whether the SeNB for further calculating holding connection is small at a distance from UE
In predetermined threshold value, then continue to keep the connection with the SeNB if it is being less than, and notify local MeNB, and terminate process, such as
Fruit is not less than or the SeNB without keeping connection, then distributes target SeNB for the UE, and execute step S106；
Step S105:MeNB sends addition requirement message to MME, is the access point identity of UE distribution including at least MeNB and MME
The routing iinformation of information and target SeNB；
Step S106:MME sends addition request message to target SeNB, which is sent to target SeNB from MME, includes at least
MME is the access point identity information of UE distribution；
Step S107: if SeNB is handled successfully, addition request confirmation message is sent to MME, otherwise, goes to step S110；It should
Message is sent to MME from target SeNB, is the access point identity information and source MeNB of UE distribution including at least SeNB and MME
The bearer related information that routing iinformation and target BS receive and refused；
Step S108:MME gives source MeNB to send addition command messages, which is sent to MeNB from MME, include at least MeNB and
MME is the access point identity information of UE distribution；
Step S109: if SeNB processing failure, addition request failure message is sent to MME, which sends from target SeNB
To MME, including at least the routing iinformation of access point identity information and source MeNB that SeNB and MME is UE distribution, and refusal
Reason；
Step S110:MME is transmitted to source MeNB for request failure message is added, which is sent to MeNB from MME, includes at least
MeNB and MME is the access point identity information and Reason For Denial of UE distribution.
Claims (4)
1. being included the following steps: according to the method for distance selection SeNB
Step S101:UE establishes connection with local MeNB first；
Step S102: the local MeNB connection for judging that the UE and MeNB is established is the connection switched from other MeNB, or at this
The connection initiated for the first time on ground MeNB thens follow the steps S103 if it is switching from the connection of other MeNB；It is no to then follow the steps
S105；
Step S103: local MeNB sends inquiry request message to MME, and it is UE distribution which, which includes at least MeNB and MME,
Access point identity information；
Step S104:MME inquires the UE with the presence or absence of holding according to the access point identity information that MeNB and MME is UE distribution
The SeNB of connection, if there is keeping the SeNB of connection, then whether the SeNB for further calculating holding connection is small at a distance from UE
In predetermined threshold value, then continue to keep the connection with the SeNB if it is being less than, and notify local MeNB, and terminate process, such as
Fruit is not less than or the SeNB without keeping connection, then distributes target SeNB for the UE, and execute step S106；
Step S105:MeNB sends addition requirement message to MME, is the access point identity of UE distribution including at least MeNB and MME
The routing iinformation of information and target SeNB；
Step S106:MME sends addition request message to target SeNB, which is sent to target SeNB from MME, includes at least
MME is the access point identity information of UE distribution；
Step S107: if SeNB is handled successfully, addition request confirmation message is sent to MME, otherwise, goes to step S110；It should
Message is sent to MME from target SeNB, is the access point identity information and source MeNB of UE distribution including at least SeNB and MME
The bearer related information that routing iinformation and target BS receive and refused；
Step S108:MME gives source MeNB to send addition command messages, which is sent to MeNB from MME, include at least MeNB and
MME is the access point identity information of UE distribution.
2. being included the following steps: according to the method for distance selection SeNB
Step S101:UE establishes connection with local MeNB first；
Step S102: the local MeNB connection for judging that the UE and MeNB is established is the connection switched from other MeNB, or at this
The connection initiated for the first time on ground MeNB thens follow the steps S103 if it is switching from the connection of other MeNB；It is no to then follow the steps
S105；
Step S103: local MeNB sends inquiry request message to MME, and it is UE distribution which, which includes at least MeNB and MME,
Access point identity information；
Step S104:MME inquires the UE with the presence or absence of holding according to the access point identity information that MeNB and MME is UE distribution
The SeNB of connection, if there is keeping the SeNB of connection, then whether the SeNB for further calculating holding connection is small at a distance from UE
In predetermined threshold value, then continue to keep the connection with the SeNB if it is being less than, and notify local MeNB, and terminate process, such as
Fruit is not less than or the SeNB without keeping connection, then distributes target SeNB for the UE, and execute step S106；
Step S105:MeNB sends addition requirement message to MME, is the access point identity of UE distribution including at least MeNB and MME
The routing iinformation of information and target SeNB；
Step S106:MME sends addition request message to target SeNB, which is sent to target SeNB from MME, includes at least
MME is the access point identity information of UE distribution；
Step S107: if SeNB is handled successfully, addition request confirmation message is sent to MME, otherwise, goes to step S110；It should
Message is sent to MME from target SeNB, is the access point identity information and source MeNB of UE distribution including at least SeNB and MME
The bearer related information that routing iinformation and target BS receive and refused；
Step S108:MME gives source MeNB to send addition command messages, which is sent to MeNB from MME, include at least MeNB and
MME is the access point identity information of UE distribution；
Step S109: if SeNB processing failure, addition request failure message is sent to MME, which sends from target SeNB
To MME, including at least the routing iinformation of access point identity information and source MeNB that SeNB and MME is UE distribution, and refusal
Reason；
Step S110:MME is transmitted to source MeNB for request failure message is added, which is sent to MeNB from MME, includes at least
MeNB and MME is the access point identity information and Reason For Denial of UE distribution.
3. a kind of computer program, for executing any one method in method 1-2.
4. according to the system of distance selection SeNB, comprising: central processing unit, memory include computer journey on the memory
Sequence, the computer program, for executing any one method in method 1-2.
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Application publication date: 20190125 |