CN102045686A - Method and equipment for supporting mobility management in wireless communication network - Google Patents

Method and equipment for supporting mobility management in wireless communication network Download PDF

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Publication number
CN102045686A
CN102045686A CN2009102047533A CN200910204753A CN102045686A CN 102045686 A CN102045686 A CN 102045686A CN 2009102047533 A CN2009102047533 A CN 2009102047533A CN 200910204753 A CN200910204753 A CN 200910204753A CN 102045686 A CN102045686 A CN 102045686A
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cell
district
sub
information
home cell
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CN2009102047533A
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CN102045686B (en
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雷艺学
张永生
大塚裕幸
伍里·A·哈普萨里
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NTT Docomo Inc
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NTT Docomo Inc
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Abstract

The invention provides a method and equipment for supporting mobility management in a wireless communication network. The method comprises the following steps of: establishing a neighborhood information table according to neighboring cell information reported by a home evolved node B (HeNB) and maintaining; and optimizing the cell search, cell reselection measurement and cell switching measurement of user equipment (UE) according to related information in the neighborhood information table, so that support is provided for the mobility management of the HeNB, and the cell search and measurement efficiency can be improved. Therefore, cell reselection and switching performance is improved.

Description

Support mobility management method and equipment in a kind of cordless communication network
Technical field
The present invention relates to the cordless communication network technical field, be specifically related to support in a kind of cordless communication network mobility management method and equipment.
Background technology
The 3GPP long evolving system is very promising mobile communication system, it comes from traditional universal mobile telecommunications system (UMTS, Universal Mobile Telecommunications System) network can provide higher wireless access rate and better business support.Figure 1 shows that LTE network architecture schematic diagram.In the LTE network, Mobility Management Entity (MME, Mobility Management Entity) connects the base station by the S1 interface.Home eNodeB (HeNB, Home eNode B) can direct-connected MME, also can pass through femto gateway (HeNB GW, HeNB Gateway) and be connected to MME.Introduce the notion of closed user group (CSG, Closed Subscriber Group) among the LTE at HeNB.By adopting the access control of CSG, have only specific terminal (UE, User Equipment) could insert corresponding HeNB.The Home eNodeB of UMTS system (HNB, Home NodeB) also has similar function.
Mobile management between HNB/HeNB and other type of base station in UMTS, LTE and the LTE-A system (as macro base station (macro eNB), little base station (micro eNB), scytoblastema station (pico eNB), via node (relay node) etc.) is a very important technology point, be related to HNB/HeNB and can support mobile service better, satisfy user's demand and improve the competitiveness of operator.Figure 2 shows that base station, two kinds of principal home front yards handoff scenario.A kind of is the switching that macrocell arrives the family sub-district, and another kind is the switching between the Home eNodeB.
Summary of the invention
Technical problem to be solved by this invention provides supports mobility management method and equipment in a kind of cordless communication network, effectively supported the solution of the mobile management problem of Home eNodeB.
For solving the problems of the technologies described above, it is as follows to the invention provides scheme:
Support mobility management method in a kind of cordless communication network, comprising:
Each adjacent home cell at arbitrary sub-district in the neighborhood information table that makes up in advance, safeguard the switching priority of described each adjacent home cell according to the statistical information of sub-district gravity treatment and switching, wherein, described neighborhood information table comprises the information of the adjacent home cell of the information of adjacent home cell of macrocell and home cell, and the adjacent home cell of described macrocell comprises the home cell in the described macrocell coverage area;
According to the CSG information under described switching priority and the terminal, control described terminal and carry out Cell searching, gravity treatment and handoff procedure.
Preferably, in the said method, described statistical information according to sub-district gravity treatment and switching is safeguarded the switching priority of described each adjacent home cell, comprising:
The number of times that judgement took place in the predetermined very first time from described arbitrary sub-district successful switch and gravity treatment to described each adjacent home cell, and the switching priority of described each adjacent home cell is set according to described number of times, wherein, the switching priority of described adjacent home cell often is higher than the switching priority of the few adjacent home cell of described number of times.
Preferably, in the said method, described statistical information according to sub-district gravity treatment and switching is safeguarded the switching priority of described each adjacent home cell, also comprises:
Whether judgement the sub-district handoff failure from described arbitrary sub-district to described each adjacent home cell took place in the described predetermined very first time, if then reduce the switching priority of described each adjacent home cell according to predetermined policy.
Preferably, in the said method, the structure of described neighborhood information table comprises:
The information of the information of the information of the home cell of this Home eNodeB correspondence that the reception Home eNodeB reports, the adjacent home cell of this Home eNodeB and the macrocell at this Home eNodeB place;
The information of the information of the information of the home cell of this Home eNodeB correspondence that reports according to each Home eNodeB, the adjacent home cell of this Home eNodeB and the macrocell at this Home eNodeB place is set up and maintenance of neighbor relation information table.
Preferably, in the said method,
The information of the home cell of described this Home eNodeB correspondence comprises the part or all of of following parameter: PCI, E-CGI, CSG sign, access module, Home eNodeB sign and tracing area sign;
The information of the adjacent home cell of described this Home eNodeB comprises the part or all of of following parameter: PCI, E-CGI, frequency point information, tracing area sign;
The information of the macrocell at described this Home eNodeB place comprises the part or all of of following parameter: PCI, E-CGI, frequency point information, tracing area sign;
The information of the adjacent home cell of described macrocell comprises the part or all of of following parameter: PCI, E-CGI, CSG sign, access module, Home eNodeB sign and tracing area sign;
The information of the adjacent home cell of described home cell comprises the part or all of of following parameter: PCI, E-CGI, CSG sign, access module, Home eNodeB sign and tracing area sign.
Preferably, in the said method, the information of described neighborhood information table and described switching priority is kept at the network node place of network side;
Further by described network node according to the information of the switching priority of the neighbor cell of the information of the neighbor cell of described terminal present located sub-district, described terminal present located first sub-district and the CSG information under the described terminal, control described terminal and carry out described Cell searching, gravity treatment and handoff procedure.
Preferably, in the said method, the described terminal of described control is carried out described Cell searching, gravity treatment and handoff procedure, comprising:
To the adjacent home cell of first sub-district, sort according to the sequencing of the home cell of the non-described CSG of the home cell of the non-described CSG of the home cell of described CSG, opening/mixed mode and closed mode; Wherein, in the home cell of described CSG, in the home cell of the non-described CSG of described opening/mixed mode and in the home cell of the non-described CSG of described closed mode, each adjacent home cell is all sorted according to switching priority sequencing from high to low;
Described network node is controlled described terminal to the forward sub-district of ordering in the adjacent home cell of described first sub-district, preferentially carries out described Cell searching, gravity treatment and handoff procedure.
Preferably, in the said method, the described terminal of described control is carried out described Cell searching, gravity treatment and handoff procedure, also comprises:
Described network node is further when the mobility status of described terminal indicates the translational speed of described terminal to be higher than predetermined first thresholding, control described terminal according to the ordering sequencing, described Cell searching, gravity treatment and handoff procedure are preferentially carried out in the sub-district forward to the ordering in the neighbor cell of described first sub-district; Wherein, in the neighbor cell of described first sub-district, the adjacent macro cell of described first sub-district comes before the adjacent home cell of described first sub-district.
Preferably, in the said method, the information of described neighborhood information table and described switching priority is kept at the network node place of network side;
Described network node is selected the information of the neighbor cell of First Family sub-district from described neighborhood information table, and the information of the switching priority of the neighbor cell of the information of the neighbor cell of described First Family sub-district and described First Family sub-district is sent to the First Family base station of described First Family sub-district correspondence, wherein, the neighbor cell of described First Family sub-district comprises: the macrocell at the adjacent home cell of described First Family sub-district, place, described First Family base station;
Further by described First Family base station, according to the information of the switching priority of the neighbor cell of the information of the neighbor cell of described First Family sub-district, described First Family sub-district with enter a CSG information under first terminal of described First Family sub-district, control described first terminal and carry out described Cell searching, gravity treatment and handoff procedure.
Preferably, in the said method, the information of described neighborhood information table and described switching priority is kept at the network node place of network side;
Described network node is selected the information of the neighbor cell of first macrocell from described neighborhood information table, and the information of the switching priority of the neighbor cell of the information of the neighbor cell of described first macrocell and described first macrocell is sent to first macro base station of the described first macrocell correspondence, wherein, the neighbor cell of described first macrocell comprises the adjacent home cell of described first macrocell;
Further by described first macro base station according to the information of the switching priority of the neighbor cell of the information of the neighbor cell of described first macrocell, described first macrocell with enter a CSG information under first terminal of described first macrocell, control described first terminal and carry out described Cell searching, gravity treatment and handoff procedure.
Preferably, in the said method, described first terminal of described control is carried out described Cell searching, gravity treatment and handoff procedure, comprising:
After described first terminal enters the overlay area of first macrocell, first macro base station is according to the switching priority of each adjacent home cell of a CSG information under described first terminal obtained in advance and this first macrocell, and the adjacent home cell of first macrocell is sorted:
To the adjacent home cell of first macrocell, sort according to the sequencing of the home cell of the non-described CSG of the home cell of the non-described CSG of the home cell of a described CSG, opening/mixed mode and closed mode; Wherein, in the home cell of a described CSG, in the home cell of the non-described CSG of described opening/mixed mode and in the home cell of the non-described CSG of described closed mode, each adjacent home cell is all sorted according to switching priority sequencing from high to low.
Preferably, in the said method,
First macro base station is according to the adjacent sub-district policy configurations of interface-free resources situation and/or described first terminal, the information of all or part of home cell in the adjacent home cell of described first macrocell is sent to described first terminal, wherein, described part home cell is according to vertical order, the sub-district of selecting the adjacent home cell of described first macrocell after ordering.
Preferably, in the said method, described transmission comprises:
Network side paging is in described first terminal of idle condition, and foundation is connected with described first terminal, and sends the information of described all or part of home cell by described connection; Perhaps,
The sub-district takes place described first terminal of waiting for network side switches or gravity treatment, and when described first terminal sends sub-district switching or gravity treatment, sends the information of described all or part of home cell by the connection of the current foundation of described first terminal.
Preferably, in the said method,
Described first terminal that is in idle condition, is preferentially carried out Cell searching and measurement, and is carried out the sub-district gravity treatment according to measurement result the forward sub-district of ordering in the described all or part of home cell of network side transmission further according to the ordering sequencing.
Preferably, in the said method, the neighbor cell of described first macrocell also comprises the adjacent macro cell of described first macrocell;
Described first macro base station is further when the mobility status of described first terminal indicates the translational speed of described first terminal to be higher than predetermined first thresholding, when sending the information of described all or part of home cell, further the information with the adjacent macro cell of described first macrocell sends to described first terminal, and the adjacent macro cell of wherein said first macrocell comes before the described all or part of home cell;
Described first terminal is further according to the ordering sequencing, the information of the adjacent macro cell of described first macrocell that network side is sent and the forward sub-district of ordering in the described all or part of home cell, preferentially carry out Cell searching and measurement, and carry out the sub-district gravity treatment according to measurement result.
Preferably, in the said method,
When described first terminal is in connection status and need carries out the sub-district switching, described first macro base station is further controlled described terminal according to the ordering sequencing, the forward sub-district of ordering in the adjacent home cell of described first macrocell of preferential measurement, and according to measurement result execution sub-district switching.
Preferably, in the said method, the neighbor cell of described first macrocell also comprises the adjacent macro cell of described first macrocell;
Described first macro base station further indicates the translational speed of described first terminal to be higher than predetermined first thresholding and described first terminal at the mobility status of described first terminal to be in connection status and need to carry out the sub-district when switching, control described terminal according to the ordering sequencing, the forward sub-district of ordering in the adjacent macro cell of described first macrocell of preferential measurement and the adjacent home cell, and according to measurement result execution sub-district switching, wherein, the adjacent macro cell of described first macrocell comes before the adjacent home cell of described first macrocell.
Preferably, in the said method, also comprise:
Safeguard according to the type of sub-district and specifically to comprise the mobility status of described first terminal:
Add up the number of times that sub-district gravity treatment and switching take place described first terminal in predetermined second time;
Macrocell and the sub-district gravity treatment between the home cell and the number of times of switching that described first terminal was taken place in described predetermined second time, and the sub-district gravity treatment between the home cell and the number of times sum of switching, multiply each other with predetermined weights, obtain a product, wherein, described predetermined weights are greater than 0 and less than 1;
The sub-district gravity treatment between the macrocell that described first terminal was taken place in described predetermined second time and the number of times of switching add the above product, obtain one and value;
According to the magnitude relationship between described and value and a plurality of predetermined threshold, determine the mobility status of described first terminal.
Preferably, in the said method,
In the process of carrying out switching of described sub-district or gravity treatment, described first macrocell further utilizes the information of the target home cell that is comprised in the information of the described all or part of home cell that described network node sends, switch the execution sub-district, and the information of described target home cell comprises CSG ID and access module at least.
The present invention also provides the network node of supporting mobile management in a kind of cordless communication network, comprising:
Switch the priority maintenance unit, be used for each adjacent home cell, safeguard the switching priority of described each adjacent home cell according to the statistical information of sub-district gravity treatment and switching at the arbitrary sub-district of neighborhood information table that makes up in advance; Wherein, described neighborhood information table comprises the information of the adjacent home cell of the information of adjacent home cell of macrocell and home cell, and the adjacent home cell of described macrocell comprises the home cell in the described macrocell coverage area;
The optimization process unit is used for according to the CSG information under described switching priority and the terminal, controls described terminal and carries out Cell searching, gravity treatment and handoff procedure.
Preferably, in the above-mentioned network node,
Described switching priority maintenance unit, also be used to judge the number of times that in the predetermined very first time, takes place from described arbitrary sub-district successful switch and gravity treatment to described each adjacent home cell, and the switching priority of described each adjacent home cell is set according to described number of times, wherein, the switching priority of described adjacent home cell often is higher than the switching priority of the few adjacent home cell of described number of times.
Preferably, in the above-mentioned network node,
Described switching priority is provided with the unit, also be used to judge the sub-district handoff failure that in the described predetermined very first time, whether takes place from described arbitrary sub-district to described each adjacent home cell, if then reduce the switching priority of described each adjacent home cell according to predetermined policy.
Preferably, in the above-mentioned network node, also comprise:
The neighborhood maintenance unit, be used to receive the information of the macrocell at the information of adjacent home cell of information, this Home eNodeB of the home cell of this Home eNodeB correspondence that Home eNodeB reports and this Home eNodeB place, and the information of the macrocell at the information of the adjacent home cell of the information of the home cell of this Home eNodeB correspondence that reports according to each Home eNodeB, this Home eNodeB and this Home eNodeB place, set up and maintenance of neighbor relation information table.
Preferably, in the above-mentioned network node,
The information of the home cell of described this Home eNodeB correspondence comprises the part or all of of following parameter: PCI, E-CGI, CSG sign, access module, Home eNodeB sign and tracing area sign;
The information of the adjacent home cell of described this Home eNodeB comprises the part or all of of following parameter: PCI, E-CGI, frequency point information, tracing area sign;
The information of the macrocell at described this Home eNodeB place comprises the part or all of of following parameter: PCI, E-CGI, frequency point information, tracing area sign;
The information of the adjacent home cell of described macrocell comprises the part or all of of following parameter: PCI, E-CGI, CSG sign, access module, Home eNodeB sign and tracing area sign;
The information of the adjacent home cell of described home cell comprises the part or all of of following parameter: PCI, E-CGI, CSG sign, access module, Home eNodeB sign and tracing area sign.
Preferably, in the above-mentioned network node,
Described optimization process unit, also be used for adjacent home cell, sort according to the sequencing of the home cell of the non-described CSG of the home cell of the non-described CSG of the home cell of described CSG, opening/mixed mode and closed mode to described terminal present located first sub-district; Wherein, in the home cell of described CSG, in the home cell of the non-described CSG of described opening/mixed mode and in the home cell of the non-described CSG of described closed mode, each adjacent home cell is all sorted according to switching priority sequencing from high to low; And, control described terminal to the forward sub-district of ordering in the adjacent home cell of described first sub-district, preferentially carry out described Cell searching, gravity treatment and handoff procedure.
Preferably, in the above-mentioned network node,
Described optimization process unit, also be used for when the mobility status of described terminal indicates the translational speed of described terminal to be higher than predetermined first thresholding, control described terminal according to the ordering sequencing, described Cell searching, gravity treatment and handoff procedure are preferentially carried out in the sub-district forward to the ordering in the neighbor cell of described first sub-district; Wherein, in the neighbor cell of described first sub-district, the adjacent macro cell of described first sub-district comes before the adjacent home cell of described first sub-district.
Preferably, in the above-mentioned network node, also comprise:
The mobility status maintenance unit is used to add up the number of times that sub-district gravity treatment and switching take place described terminal in predetermined second time; Macrocell and the sub-district gravity treatment between the home cell and the number of times of switching that described terminal was taken place in described predetermined second time, and the number of times sum of the gravity treatment of the sub-district between the home cell/switching multiplies each other with predetermined weights, obtains a product, wherein, described predetermined weights are greater than 0 and less than 1; The sub-district gravity treatment between the macrocell that described terminal was taken place in described predetermined second time and the number of times of switching add the above product, obtain one and value; According to the magnitude relationship between described and value and a plurality of predetermined threshold, determine the mobility status of described terminal.
Preferably, in the above-mentioned network node, also comprise:
First issues the unit, be used for after first terminal enters the overlay area of described First Family sub-district, described network node is selected the information of the neighbor cell of First Family sub-district from described neighborhood information table, and the information of the switching priority of the neighbor cell of the information of the neighbor cell of described First Family sub-district and described First Family sub-district is sent to the First Family base station of described First Family sub-district correspondence, wherein, the neighbor cell of First Family sub-district comprises; The macrocell at the adjacent home cell of described First Family sub-district, place, described First Family base station.
Preferably, in the above-mentioned network node, also comprise:
Second issues the unit, be used for after first terminal enters the overlay area of described first macrocell, described network node is selected the information of the neighbor cell of first macrocell from described neighborhood information table, and the information of the switching priority of the neighbor cell of the information of the neighbor cell of described first macrocell and described first macrocell is sent to first macro base station of the described first macrocell correspondence, wherein, the neighbor cell of first macrocell comprises the adjacent home cell of described first macrocell.
From the above as can be seen, support mobility management method and equipment in the cordless communication network provided by the invention, by making up the neighborhood information table, provide support the mobile management of Home eNodeB.And the present invention is by issuing the information of relevant adjacent home cell, and terminal can be optimized Cell searching and measurement in view of the above, improves the efficient of Cell searching; Network side also can be according to this information, and switch the sub-district of optimizing terminal, reduces the time that switch the sub-district.
Description of drawings
Fig. 1 is the LTE network architecture diagram of prior art;
Fig. 2 is the typical handoff scenario schematic diagrames of two kinds of prior art;
Fig. 3 is the schematic flow sheet of the described support mobility management method of the embodiment of the invention;
A kind of possible macrocell that Fig. 4 provides for the embodiment of the invention and home cell concern schematic diagram;
Support the structural representation of the network node of mobile management in a kind of cordless communication network that Fig. 5 provides for the embodiment of the invention.
Embodiment
The present invention proposes and support mobility management method and equipment in a kind of cordless communication network,, set up and maintenance of neighbor relation information table according to the adjacent cell information that Home eNodeB reports.The present invention also provides based on described neighborhood information table, optimizes the Cell searching of UE, the specific embodiment of sub-district gravity treatment measurement and sub-district handover measurement.Below in conjunction with accompanying drawing overall view specific embodiment the present invention is elaborated.Need to prove that the method for the invention and device not only can be applied to UMTS system and LTE system, can also be applied to the following evolution system LTE-A of LTE system.
＜embodiment 1 〉
Present embodiment provides a kind of support mobility management method, makes network side can get access to the relevant information of adjacent Home eNodeB, has effectively supported the solution of the mobile management problem of Home eNodeB.As shown in Figure 3, support mobility management method in the described cordless communication network of present embodiment, may further comprise the steps:
Step 31, each Home eNodeB in the network report the information of the macrocell at the information of adjacent home cell of information, this Home eNodeB of the home cell of this Home eNodeB correspondence and this Home eNodeB place to network node.
Here, the adjacent home cell of this Home eNodeB is meant the adjacent home cell of the home cell of this Home eNodeB correspondence; The macrocell at this Home eNodeB place is meant that this Home eNodeB is positioned within the coverage of this macrocell.Among the present invention, described " adjacent " is meant that there is common factor the overlay area between the sub-district, and above-mentioned " the adjacent home cell of this Home eNodeB " and " macrocell at this Home eNodeB place " all are the neighbor cells of this Home eNodeB.
Here, described network node can be MME or other functional node.
Here, Home eNodeB utilizes self downlink receiver to scan in its start and in service, the information of collection neighbor cell; Also the measurement report that can utilize UE to report to this base station is collected the information of neighbor cell, and then reports to network node.
Here, the information of the home cell of described this Home eNodeB correspondence comprises some or all of in the following parameter: physical-layer cell identifier (PCI, Physical Cell Identifier), cell global identity (E-CGI, E-UTRAN Cell Global Identifier), CSG sign (CSG-ID), access module (AccessMode), Home eNodeB sign (HeNB ID) and tracing area sign (TAI, Tracking AreaIdentifier) etc.;
The information of the adjacent home cell of described this Home eNodeB comprises some or all of in the following parameter: PCI, E-CGI, frequency point information, TAI etc.;
The information of the macrocell at described this Home eNodeB place comprises some or all of in the following parameter: PCI, E-CGI, frequency point information, TAI etc.
Step 32, network node gathers the information of the macrocell at the information of adjacent home cell of information, this Home eNodeB of the home cell of this Home eNodeB correspondence that each Home eNodeB reports and this Home eNodeB place, and set up in view of the above and maintenance of neighbor relation information table, described neighborhood information table comprises: the information of the information of the adjacent home cell of macrocell and the adjacent home cell of home cell; Wherein, the adjacent home cell of described macrocell comprises the home cell in the described macrocell coverage area.
Here, the information of the adjacent home cell of described macrocell comprises: PCI, E-CGI, CSG sign (CSG-ID), access module (Access Mode), Home eNodeB sign (HeNB ID) and TAI etc.; The information of the adjacent home cell of described home cell comprises: PCI, E-CGI, CSG sign (CSG-ID), access module (Access Mode), Home eNodeB sign (HeNB ID) and TAI etc.
In the above-mentioned steps 32, network node gathers the information of the home cell of this Home eNodeB correspondence that each Home eNodeB reports, the information of the macrocell at the information of the adjacent home cell of this Home eNodeB and this Home eNodeB place, obtain all home cells in each macrocell coverage area, and the details of the home cell of this Home eNodeB correspondence that reports according to each Home eNodeB, set up the details of all home cells in each macrocell coverage area, these details specifically comprise some or all of in the following parameter: PCI, E-CGI, CSG-ID, Access Mode, HeNB ID and TAI etc.For the adjacent home cell of each home cell, similar details have also been set up.
Step 33a, optionally, network node can be selected the information of the neighbor cell of first macrocell from described neighborhood information table, and the information of the neighbor cell of described first macrocell is sent to first macro base station of the described first macrocell correspondence, wherein, the neighbor cell of first macrocell comprises the adjacent home cell of described first macrocell;
Step 33b, optionally, network node can be selected the information of the neighbor cell of First Family sub-district from described neighborhood information table, and the information of the neighbor cell of described First Family sub-district is sent to the First Family base station of described First Family sub-district correspondence, wherein, the neighbor cell of First Family sub-district comprises; The macrocell at the adjacent home cell of described First Family sub-district, place, described First Family base station.
From the above as can be seen, pass through present embodiment, network node can get access to the details of the adjacent home cell of each sub-district, and can further issue the details of corresponding neighbor cell to macro base station/Home eNodeB, thereby provides support for the mobile management of Home eNodeB.Following examples will support mobile management to describe to how using this information.
＜embodiment 2 〉
Present embodiment is implemented on the basis of the described neighborhood information table that embodiment 1 makes up, and network side further is provided with switching priority to the adjacent home cell in the neighborhood information table, and carries out prioritization in view of the above in subsequent embodiment.Network side described here can be the network node described in the embodiment 1, also can be macro base station or Home eNodeB.
Include the information of the adjacent home cell of the information of adjacent home cell of macrocell and home cell in the described neighborhood information table.For the arbitrary sub-district in the described neighborhood information table (can be macrocell or home cell), include the information of all adjacent home cells of this arbitrary sub-district in the described neighborhood information table.For example, be example with Fig. 4, a kind of possible situation is: for macrocell 1, its adjacent home cell is a home cell 1～9.For home cell 2, its adjacent home cell is a home cell 1,3,4.
In the present embodiment, further at each the adjacent home cell of arbitrary sub-district in the neighborhood information table, add up the number of times that in the predetermined very first time, takes place respectively from described arbitrary sub-district successful switch to described each adjacent home cell, and according to described number of times, the switching priority of described each adjacent home cell is set,, the switching priority of the adjacent home cell that wherein said number of times is high is higher than the switching priority of the low adjacent home cell of described number of times.
For example, suppose that the predetermined very first time is 2 hours:
For the adjacent home cell 1 of macrocell 1, the number of times from macrocell 1 successful switch to family sub-district 1 that statistics took place in these 2 hours obtains number of times 1;
For the adjacent home cell 2 of macrocell 1, the number of times from macrocell 1 successful switch to family sub-district 2 that statistics took place in these 2 hours obtains number of times 2;
For the adjacent home cell 1 of macrocell 1, the number of times from macrocell 1 successful switch to family sub-district 3 that statistics took place in these 2 hours obtains number of times 3;
……
For the adjacent home cell 9 of macrocell 1, the number of times from macrocell 1 successful switch to family sub-district 9 that statistics took place in these 2 hours obtains number of times 9.
Suppose above-mentioned number of times 1＞number of times 2＞number of times 3＞... number of times 8＞number of times 9, then for the adjacent home cell 1～9 of macrocell 1, their switching priority also reduces from high to low one by one.Concrete switching priority can be used numeral.
Certainly, here also can set in advance a plurality of threshold values, higher threshold value is corresponding to higher switching priority, then the number of times of each adjacent home cell is compared with described a plurality of threshold values, from threshold value, find wherein maximum threshold value less than described number of times, the switching priority of the threshold value correspondence that this is maximum is exactly the switching priority of this adjacent home cell.
In the present embodiment, after the switching priority of each adjacent home cell being set according to described number of times, network node can also further judge whether take place from the sub-district handoff failure of this arbitrary sub-district each adjacent home cell to this in the described predetermined very first time, if then reduce the switching priority of this each adjacent home cell according to predetermined policy.Described predetermined policy can set up on their own, for example, in case occur to the handoff failure of certain adjacent home cell, switching priority that just will this adjacent home cell reduces one-level or switching priority that will this adjacent home cell and is arranged to a minimum numerical value or forbids that this adjacent home cell is as purpose sub-district of sub-district switching or the like.
＜embodiment 3 〉
Among the present invention, on the basis of the switching priority of embodiment 2, sort according to switching priority, then, terminal for idle condition, network side need select the forward adjacent home cell of ordering to send to terminal from the neighborhood information table, with the optimization Cell searching with for carrying out the measurement that the sub-district gravity treatment is carried out.For the terminal of connection status, network side is according to the neighborhood information table and switch priority, and control terminal is preferentially measured the forward sub-district of ordering in the adjacent home cell.
Among the present invention, can come control terminal to carry out Cell searching, gravity treatment and the handoff procedure of optimizing by described network node or base station (macro base station or Home eNodeB).Be that example describes with the network node in the present embodiment.
In the present embodiment, because the network node place has preserved the information of described neighborhood information table and described switching priority, network node can be directly according to the information of the switching priority of the neighbor cell of the information of the neighbor cell of terminal present located sub-district, described terminal present located first sub-district and the CSG information under the described terminal, control described terminal and carry out described Cell searching, gravity treatment and handoff procedure.
Here, the described terminal of described control is carried out described Cell searching, gravity treatment and handoff procedure, specifically comprises:
To the adjacent home cell of first sub-district, sort according to the sequencing of the home cell of the non-described CSG of the home cell of the non-described CSG of the home cell of described CSG, opening/mixed mode and closed mode; Wherein, in the home cell of described CSG, in the home cell of the non-described CSG of described opening/mixed mode and in the home cell of the non-described CSG of described closed mode, each adjacent home cell is all sorted according to switching priority sequencing from high to low;
Described network node is controlled described terminal to the forward sub-district of ordering in the adjacent home cell of described first sub-district, preferentially carries out described Cell searching, gravity treatment and handoff procedure.Here, described network node can also be further when the mobility status of described terminal indicates the translational speed of described terminal to be higher than predetermined first thresholding, control described terminal according to the ordering sequencing, described Cell searching, gravity treatment and handoff procedure are preferentially carried out in the sub-district forward to the ordering in the neighbor cell of described first sub-district; Wherein, the neighbor cell of described first sub-district comprises the adjacent home cell and the adjacent macro cell of described first sub-district; In the neighbor cell of described first sub-district, the adjacent macro cell of described first sub-district comes before the adjacent home cell of described first sub-district.
In the present embodiment, the described terminal of described control is carried out described Cell searching, gravity treatment and handoff procedure, also comprises:
Described network node is further when the mobility status of described terminal indicates the translational speed of described terminal to be higher than predetermined first thresholding, control described terminal according to the ordering sequencing, described Cell searching, gravity treatment and handoff procedure are preferentially carried out in the sub-district forward to the ordering in the neighbor cell of described first sub-district; Wherein, in the neighbor cell of described first sub-district, the adjacent macro cell of described first sub-district comes before the adjacent home cell of described first sub-district.
＜embodiment 4 〉
In the present embodiment, can come control terminal to carry out Cell searching, gravity treatment and the handoff procedure of optimizing by described network node or base station (macro base station or Home eNodeB).
Present embodiment is being carried out the Cell searching of optimizing by the base stations control terminal, when gravity treatment and handoff procedure, for example, the Cell searching of optimizing is carried out in First Family base station by First Family sub-district correspondence, when gravity treatment and handoff procedure, described network node is selected the information of the neighbor cell of First Family sub-district from described neighborhood information table, and the information of the switching priority of the neighbor cell of the information of the neighbor cell of described First Family sub-district and described First Family sub-district sent to described First Family base station, wherein, the neighbor cell of described First Family sub-district comprises: the adjacent home cell of described First Family sub-district, the macrocell at place, described First Family base station; Then, by described First Family base station, according to the information of the switching priority of the neighbor cell of the information of the neighbor cell of described First Family sub-district, described First Family sub-district with enter a CSG information under first terminal of described First Family sub-district, control described first terminal and carry out described Cell searching, gravity treatment and handoff procedure.
Present embodiment is when the Cell searching of being carried out optimization by first macro base station of the first macrocell correspondence, gravity treatment and handoff procedure, described network node is selected the information of the neighbor cell of first macrocell from described neighborhood information table, and the information of the switching priority of the neighbor cell of the information of the neighbor cell of described first macrocell and described first macrocell sent to described first macro base station, wherein, the neighbor cell of described first macrocell comprises the adjacent home cell of described first macrocell; Then,, control described first terminal and carry out described Cell searching, gravity treatment and handoff procedure according to the information of the switching priority of the neighbor cell of the information of the neighbor cell of described first macrocell, described first macrocell with enter a CSG information under first terminal of described first macrocell by described first macro base station.Here, described first terminal of described control is carried out described Cell searching, gravity treatment and handoff procedure, specifically comprises:
1) after described first terminal enters the overlay area of first macrocell, first macro base station is according to the switching priority of each adjacent home cell of a CSG information and this first macrocell under described first terminal of obtaining in advance, adjacent home cell to first macrocell sorts: to the adjacent home cell of first macrocell, sort according to the sequencing of the home cell of the non-described CSG of the home cell of the non-described CSG of the home cell of a described CSG, opening/mixed mode and closed mode; Wherein, in the home cell of a described CSG, in the home cell of the non-described CSG of described opening/mixed mode and in the home cell of the non-described CSG of described closed mode, each adjacent home cell is all sorted according to switching priority sequencing from high to low.
2) then, first macro base station is according to the adjacent sub-district policy configurations of interface-free resources situation and/or described first terminal, the information of all or part of home cell in the adjacent home cell of described first macrocell is sent to described first terminal, wherein, described part home cell is according to vertical order, the sub-district of selecting the adjacent home cell of described first macrocell after ordering.
Here, described transmission specifically comprises: network side paging is in described first terminal of idle condition, and foundation is connected with described first terminal, and sends the information of described all or part of home cell by described connection; Perhaps, network side waits for that described first terminal sub-district takes place switches or gravity treatment, and when described first terminal sends sub-district switching or gravity treatment, sends the information of described all or part of home cell by the connection of the current foundation of described first terminal.
3) described first terminal that is in idle condition, is preferentially carried out Cell searching and measurement, and is carried out the sub-district gravity treatment according to measurement result the forward sub-district of ordering in the described all or part of home cell of network side transmission further according to the ordering sequencing; When described first terminal is in connection status and need carries out the sub-district switching, described first macro base station is further controlled described terminal according to the ordering sequencing, the forward sub-district of ordering in the adjacent home cell of described first macrocell of preferential measurement, and according to measurement result execution sub-district switching.
In the present embodiment, described first terminal of described control is carried out described Cell searching, gravity treatment and handoff procedure, also comprises:
For the sub-district gravity treatment, described first macro base station is further when the mobility status of described first terminal indicates the translational speed of described first terminal to be higher than predetermined first thresholding, when sending the information of described all or part of home cell, further the information with the adjacent macro cell of described first macrocell sends to described first terminal, and the adjacent macro cell of wherein said first macrocell comes before the described all or part of home cell; Described first terminal is further according to the ordering sequencing, the information of the adjacent macro cell of described first macrocell that network side is sent and the forward sub-district of ordering in the described all or part of home cell, preferentially carry out Cell searching and measurement, and carry out the sub-district gravity treatment according to measurement result.
Switch for the sub-district, described first macro base station further indicates the translational speed of described first terminal to be higher than predetermined first thresholding and described first terminal at the mobility status of described first terminal to be in connection status and need to carry out the sub-district when switching, control described terminal according to the ordering sequencing, the forward sub-district of ordering in the adjacent macro cell of described first macrocell of preferential measurement and the adjacent home cell, and according to measurement result execution sub-district switching, wherein, the adjacent macro cell of described first macrocell comes before the adjacent home cell of described first macrocell.
In order to be more readily understood above-mentioned sortord, be described further in conjunction with Fig. 4.Suppose that first terminal has entered the coverage of macrocell 1, CSG under first terminal is CSG1, the switching priority of the adjacent home cell 1～9 of macrocell 1 is successively decreased one by one, the switching priority that is home cell 1 is the highest, the switching priority of home cell 9 is the highest, and CSG under each home cell and mode of operation are all as shown in Figure 4.According to above-mentioned sortord home cell 1～9 is sorted:
At first, the home cell according to the non-CSG1 of the home cell of the non-CSG1 of the home cell of CSG1, opening/mixed mode and closed mode is divided into 3 groups with home cell 1～9:
First group is the home cell of CSG1, comprising: home cell 3,7,8;
Second group of home cell for the non-CSG1 of opening/mixed mode comprises: home cell 5,6,9;
The 3rd group is the home cell of the non-CSG1 of closed mode, comprising: home cell 1,2,4;
Then, in every group, according to the height sequence arrangement of switching priority, owing to the switching priority of home cell 1～9 is successively decreased one by one, so final ranking results is:
Home cell 3,7,8,5,6,9,1,2,4.
After the adjacent home cell ordering of first macrocell is finished, network side (as first macro base station) according to the interface-free resources situation and/or as described in the adjacent sub-district policy configurations of first terminal, the information of all or part of home cell in the adjacent home cell of described first macrocell is sent to described first terminal, wherein, described part home cell is the sub-district that goes out according to vertical selective sequential from the adjacent home cell of described first macrocell after the ordering.For example, when interface-free resources is nervous, information that can sending part subfamily sub-district, otherwise, when interface-free resources is rich, can send the information of whole home cells; For example, when policy configurations indication in the adjacent sub-district of first terminal can receive the information of adjacent cells of predetermined quantity, just send the information of the home cell of respective numbers.
In the present embodiment, first terminal just after the information of the described all or part of home cell that can issue according to the network side that receives, is carried out Cell searching and measurement, and is carried out the sub-district gravity treatment according to measurement result when being in idle condition.Cell searching of the prior art, LTE and LTE-A thereof support that UE carries out blind searching (autonomous search), with the ability of lifting UE, but this poor efficiency that has also caused Cell searching and measured.Present embodiment is by providing the information of suitable home cell, and UE searches in view of the above, can improve search efficiency.
In the present embodiment, when described first terminal is in connection status and need carries out the sub-district switching, the current service cell of described first terminal is further controlled described terminal and is preferentially measured the forward home cell of ordering in the adjacent home cell of described first macrocell, and carries out the sub-district switching according to measurement result.And, present embodiment is in carrying out the process of switching described sub-district, current service cell is further utilized the information of the target home cell that is comprised in the information of the described all or part of home cell that network side sends, switch the execution sub-district, and the information of described target home cell comprises CSG ID and access module at least.Because before switching generation, the information that current service cell or network node place have preserved the target home cell, current service cell need not to obtain by the base station of signaling from target home cell correspondence after switching generation again, so present embodiment can shorten switching time.
＜embodiment 5 〉
Present embodiment is further considered the mobility status of terminal on the basis of embodiment 4, and then determines how to issue information of adjacent cells to Idle state UE, and perhaps the measuring object of control connection attitude UE is optimized sub-district gravity treatment and handoff procedure respectively.
First terminal for idle condition, after it enters the coverage of first macrocell, the mobility status of first terminal as described in network side (as first macro base station) is further judged, when the mobility status of described first terminal indicates the translational speed of described first terminal to be higher than predetermined first thresholding, when sending the information of described all or part of home cell, further the information with the adjacent macro cell of described first macrocell sends to described first terminal, and the adjacent macro cell of wherein said first macrocell comes before the described all or part of home cell; Described first terminal is further according to the ordering sequencing, the information of the adjacent macro cell of described first macrocell that network side is sent and the forward sub-district of ordering in the described all or part of home cell, preferentially carry out Cell searching and measurement, and carry out the sub-district gravity treatment according to measurement result.For example, during corresponding to high-speed moving state, present embodiment can preferentially send macro cell message when terminal is in high-speed mobile, make terminal preferentially reside in macrocell at described predetermined first thresholding.When terminal is in low speed or middling speed mobile status, then directly send the information of described all or part of home cell, promptly preferentially send home cell.Process of transmitting is followed the method described in the embodiment 4.
First terminal for connection status, after it enters the coverage of first macrocell, the mobility status of first terminal as described in network side (as first macro base station) is further judged, indicate the translational speed of described first terminal to be higher than predetermined first thresholding at the mobility status of described first terminal, and when described first terminal is in connection status and need carries out the sub-district switching, control described terminal according to the ordering sequencing, the forward sub-district of ordering in the adjacent macro cell of described first macrocell of preferential measurement and the adjacent home cell, and according to measurement result execution sub-district switching, wherein, the adjacent macro cell of described first macrocell comes before the adjacent home cell of described first macrocell.Like this, when terminal was in high-speed mobile, present embodiment can make terminal preferentially switch to macrocell but not home cell, switched frequent the generation to avoid the sub-district.
In the present embodiment, when determining the mobile status of first terminal, the coverage of further considering home cell is usually less than the coverage of macro base station, therefore preferably determine the mobile status of first terminal in the present embodiment in such a way, thereby can reflect the current moving state of terminal more realistically:
Network side is added up the number of times that sub-district gravity treatment and switching take place described first terminal in predetermined second time;
Macrocell and the sub-district gravity treatment between the home cell and the number of times of switching that described first terminal was taken place in described predetermined second time, and the sub-district gravity treatment between the home cell and the number of times sum of switching, multiply each other with predetermined weights, obtain a product, wherein, described predetermined weights are greater than 0 and less than 1, and in the practical application, these weights can be provided with according to the ratio of the coverage of home cell and macrocell;
The sub-district gravity treatment between the macrocell that described first terminal was taken place in described predetermined second time and the number of times of switching add the above product, obtain one and value;
According to the magnitude relationship between described and value and a plurality of predetermined threshold, determine the mobility status of described first terminal.For example,
During more than or equal to predetermined first thresholding, the mobility status of judging described first terminal is a high-speed moving state in described and value;
When described and value was less than or equal to predetermined second thresholding, the mobility status of judging described first terminal was normal fast mobile status;
During greater than described predetermined second thresholding and less than described predetermined first thresholding, the mobility status of judging described first terminal is the middling speed mobile status in described and value.
Here, above-mentioned predetermined first thresholding is greater than predetermined second thresholding.
＜embodiment 6 〉
Based on above-mentioned each embodiment, present embodiment provides corresponding apparatus, in order to implement the method described in the foregoing description.
As shown in Figure 5, present embodiment provides the network node of supporting mobile management in a kind of cordless communication network, and this network node comprises:
Switch the priority maintenance unit, be used for each adjacent home cell, safeguard the switching priority of described each adjacent home cell according to the statistical information of sub-district gravity treatment and switching at the arbitrary sub-district of neighborhood information table that makes up in advance; Wherein, described neighborhood information table comprises: the information of the information of the adjacent home cell of macrocell and the adjacent home cell of home cell, the adjacent home cell of described macrocell comprise the home cell in the described macrocell coverage area;
The optimization process unit is used for according to the CSG information under described switching priority and the terminal, controls described terminal and carries out Cell searching, gravity treatment and handoff procedure.
Here, described switching priority maintenance unit, also be used to judge the number of times that in the predetermined very first time, takes place from described arbitrary sub-district successful switch and gravity treatment to described each adjacent home cell, and the switching priority of described each adjacent home cell is set according to described number of times, wherein, the switching priority of described adjacent home cell often is higher than the switching priority of the few adjacent home cell of described number of times.
Described switching priority is provided with the unit, also be used to judge the sub-district handoff failure that in the described predetermined very first time, whether takes place from described arbitrary sub-district to described each adjacent home cell, if then reduce the switching priority of described each adjacent home cell according to predetermined policy.
Preferably, above-mentioned network node also comprises:
The neighborhood maintenance unit, be used to receive the information of the macrocell at the information of adjacent home cell of information, this Home eNodeB of the home cell of this Home eNodeB correspondence that Home eNodeB reports and this Home eNodeB place, and the information of the macrocell at the information of the adjacent home cell of the information of the home cell of this Home eNodeB correspondence that reports according to each Home eNodeB, this Home eNodeB and this Home eNodeB place, set up and maintenance of neighbor relation information table.
Here, the information of the home cell of described this Home eNodeB correspondence comprises the part or all of of following parameter: PCI, E-CGI, CSG sign, access module, Home eNodeB sign and tracing area sign;
The information of the adjacent home cell of described this Home eNodeB comprises the part or all of of following parameter: PCI, E-CGI, frequency point information, tracing area sign;
The information of the macrocell at described this Home eNodeB place comprises the part or all of of following parameter: PCI, E-CGI, frequency point information, tracing area sign;
The information of the adjacent home cell of described macrocell comprises the part or all of of following parameter: PCI, E-CGI, CSG sign, access module, Home eNodeB sign and tracing area sign;
The information of the adjacent home cell of described home cell comprises the part or all of of following parameter: PCI, E-CGI, CSG sign, access module, Home eNodeB sign and tracing area sign.
Preferably, in the above-mentioned network node,
Described optimization process unit, also be used for adjacent home cell, sort according to the sequencing of the home cell of the non-described CSG of the home cell of the non-described CSG of the home cell of described CSG, opening/mixed mode and closed mode to described terminal present located first sub-district; Wherein, in the home cell of described CSG, in the home cell of the non-described CSG of described opening/mixed mode and in the home cell of the non-described CSG of described closed mode, each adjacent home cell is all sorted according to switching priority sequencing from high to low; And, control described terminal to the forward sub-district of ordering in the adjacent home cell of described first sub-district, preferentially carry out described Cell searching, gravity treatment and handoff procedure.
Preferably, described optimization process unit, also be used for when the mobility status of described terminal indicates the translational speed of described terminal to be higher than predetermined first thresholding, control described terminal according to the ordering sequencing, described Cell searching, gravity treatment and handoff procedure are preferentially carried out in the sub-district forward to the ordering in the neighbor cell of described first sub-district; Wherein, in the neighbor cell of described first sub-district, the adjacent macro cell of described first sub-district comes before the adjacent home cell of described first sub-district.
Preferably, above-mentioned network node also comprises:
The mobility status maintenance unit is used to add up the number of times that sub-district gravity treatment and switching take place described terminal in predetermined second time; Macrocell and the sub-district gravity treatment between the home cell and the number of times of switching that described terminal was taken place in described predetermined second time, and the number of times sum of the gravity treatment of the sub-district between the home cell/switching multiplies each other with predetermined weights, obtains a product, wherein, described predetermined weights are greater than 0 and less than 1; The sub-district gravity treatment between the macrocell that described terminal was taken place in described predetermined second time and the number of times of switching add the above product, obtain one and value; According to the magnitude relationship between described and value and a plurality of predetermined threshold, determine the mobility status of described terminal.
First issues the unit, be used for after first terminal enters the overlay area of described First Family sub-district, described network node is selected the information of the neighbor cell of First Family sub-district from described neighborhood information table, and the information of the switching priority of the neighbor cell of the information of the neighbor cell of described First Family sub-district and described First Family sub-district is sent to the First Family base station of described First Family sub-district correspondence, wherein, the neighbor cell of First Family sub-district comprises; The macrocell at the adjacent home cell of described First Family sub-district, place, described First Family base station is selected the information of the neighbor cell of first macrocell from described neighborhood information table, and the information of the neighbor cell of described first macrocell is sent to first macro base station of the described first macrocell correspondence, wherein, the neighbor cell of first macrocell comprises the adjacent home cell of described first macrocell;
And/or select the information of the neighbor cell of First Family sub-district from described neighborhood information table, and the information of the neighbor cell of described First Family sub-district is sent to the First Family base station of described First Family sub-district correspondence, wherein, the neighbor cell of First Family sub-district comprises; The macrocell at the adjacent home cell of described First Family sub-district, place, described First Family base station.
Second issues the unit, be used for after first terminal enters the overlay area of described first macrocell, described network node is selected the information of the neighbor cell of first macrocell from described neighborhood information table, and the information of the switching priority of the neighbor cell of the information of the neighbor cell of described first macrocell and described first macrocell is sent to first macro base station of the described first macrocell correspondence, wherein, the neighbor cell of first macrocell comprises the adjacent home cell of described first macrocell.
In sum, support mobility management method and equipment in the cordless communication network that the embodiment of the invention provides, the mobile management of Home eNodeB can be provided, improve the efficient of Cell searching and measurement, reduce the time of sub-district gravity treatment and switching.
Support mobility management method and equipment in the described cordless communication network of the embodiment of the invention, be not restricted to listed utilization in specification and the execution mode, it can be applied to various suitable the present invention's field fully, for those skilled in the art, can easily realize additional advantage and make amendment, therefore under the situation of the spirit and scope of the universal that does not deviate from claim and equivalency range and limited, the examples shown that the present invention is not limited to specific details, representational equipment and illustrates here and describe.

Claims (29)

1. support mobility management method in a cordless communication network, it is characterized in that, comprising:
Each adjacent home cell at arbitrary sub-district in the neighborhood information table that makes up in advance, safeguard the switching priority of described each adjacent home cell according to the statistical information of sub-district gravity treatment and switching, wherein, described neighborhood information table comprises the information of the adjacent home cell of the information of adjacent home cell of macrocell and home cell, and the adjacent home cell of described macrocell comprises the home cell in the described macrocell coverage area;
According to the CSG information under described switching priority and the terminal, control described terminal and carry out Cell searching, gravity treatment and handoff procedure.
2. the method for claim 1 is characterized in that, described statistical information according to sub-district gravity treatment and switching is safeguarded the switching priority of described each adjacent home cell, comprising:
The number of times that judgement took place in the predetermined very first time from described arbitrary sub-district successful switch and gravity treatment to described each adjacent home cell, and the switching priority of described each adjacent home cell is set according to described number of times, wherein, the switching priority of described adjacent home cell often is higher than the switching priority of the few adjacent home cell of described number of times.
3. method as claimed in claim 2 is characterized in that, described statistical information according to sub-district gravity treatment and switching is safeguarded the switching priority of described each adjacent home cell, also comprises:
Whether judgement the sub-district handoff failure from described arbitrary sub-district to described each adjacent home cell took place in the described predetermined very first time, if then reduce the switching priority of described each adjacent home cell according to predetermined policy.
4. the method for claim 1 is characterized in that, the structure of described neighborhood information table comprises:
The information of the information of the information of the home cell of this Home eNodeB correspondence that the reception Home eNodeB reports, the adjacent home cell of this Home eNodeB and the macrocell at this Home eNodeB place;
The information of the information of the information of the home cell of this Home eNodeB correspondence that reports according to each Home eNodeB, the adjacent home cell of this Home eNodeB and the macrocell at this Home eNodeB place is set up and maintenance of neighbor relation information table.
5. method as claimed in claim 4 is characterized in that,
The information of the home cell of described this Home eNodeB correspondence comprises the part or all of of following parameter: PCI, E-CGI, CSG sign, access module, Home eNodeB sign and tracing area sign;
The information of the adjacent home cell of described this Home eNodeB comprises the part or all of of following parameter: PCI, E-CGI, frequency point information, tracing area sign;
The information of the macrocell at described this Home eNodeB place comprises the part or all of of following parameter: PCI, E-CGI, frequency point information, tracing area sign;
The information of the adjacent home cell of described macrocell comprises the part or all of of following parameter: PCI, E-CGI, CSG sign, access module, Home eNodeB sign and tracing area sign;
The information of the adjacent home cell of described home cell comprises the part or all of of following parameter: PCI, E-CGI, CSG sign, access module, Home eNodeB sign and tracing area sign.
6. method as claimed in claim 4 is characterized in that, the information of described neighborhood information table and described switching priority is kept at the network node place of network side;
Further by described network node according to the information of the switching priority of the neighbor cell of the information of the neighbor cell of described terminal present located sub-district, described terminal present located first sub-district and the CSG information under the described terminal, control described terminal and carry out described Cell searching, gravity treatment and handoff procedure.
7. method as claimed in claim 6 is characterized in that, the described terminal of described control is carried out described Cell searching, gravity treatment and handoff procedure, comprising:
To the adjacent home cell of first sub-district, sort according to the sequencing of the home cell of the non-described CSG of the home cell of the non-described CSG of the home cell of described CSG, opening/mixed mode and closed mode; Wherein, in the home cell of described CSG, in the home cell of the non-described CSG of described opening/mixed mode and in the home cell of the non-described CSG of described closed mode, each adjacent home cell is all sorted according to switching priority sequencing from high to low;
Described network node is controlled described terminal to the forward sub-district of ordering in the adjacent home cell of described first sub-district, preferentially carries out described Cell searching, gravity treatment and handoff procedure.
8. method as claimed in claim 7 is characterized in that, the described terminal of described control is carried out described Cell searching, gravity treatment and handoff procedure, also comprises:
Described network node is further when the mobility status of described terminal indicates the translational speed of described terminal to be higher than predetermined first thresholding, control described terminal according to the ordering sequencing, described Cell searching, gravity treatment and handoff procedure are preferentially carried out in the sub-district forward to the ordering in the neighbor cell of described first sub-district; Wherein, in the neighbor cell of described first sub-district, the adjacent macro cell of described first sub-district comes before the adjacent home cell of described first sub-district.
9. method as claimed in claim 4 is characterized in that, the information of described neighborhood information table and described switching priority is kept at the network node place of network side;
Described network node is selected the information of the neighbor cell of First Family sub-district from described neighborhood information table, and the information of the switching priority of the neighbor cell of the information of the neighbor cell of described First Family sub-district and described First Family sub-district is sent to the First Family base station of described First Family sub-district correspondence, wherein, the neighbor cell of described First Family sub-district comprises: the macrocell at the adjacent home cell of described First Family sub-district, place, described First Family base station;
Further by described First Family base station, according to the information of the switching priority of the neighbor cell of the information of the neighbor cell of described First Family sub-district, described First Family sub-district with enter a CSG information under first terminal of described First Family sub-district, control described first terminal and carry out described Cell searching, gravity treatment and handoff procedure.
10. method as claimed in claim 4 is characterized in that, the information of described neighborhood information table and described switching priority is kept at the network node place of network side;
Described network node is selected the information of the neighbor cell of first macrocell from described neighborhood information table, and the information of the switching priority of the neighbor cell of the information of the neighbor cell of described first macrocell and described first macrocell is sent to first macro base station of the described first macrocell correspondence, wherein, the neighbor cell of described first macrocell comprises the adjacent home cell of described first macrocell;
Further by described first macro base station according to the information of the switching priority of the neighbor cell of the information of the neighbor cell of described first macrocell, described first macrocell with enter a CSG information under first terminal of described first macrocell, control described first terminal and carry out described Cell searching, gravity treatment and handoff procedure.
11. method as claimed in claim 10 is characterized in that, described first terminal of described control is carried out described Cell searching, gravity treatment and handoff procedure, comprising:
After described first terminal enters the overlay area of first macrocell, first macro base station is according to the switching priority of each adjacent home cell of a CSG information under described first terminal obtained in advance and this first macrocell, and the adjacent home cell of first macrocell is sorted:
To the adjacent home cell of first macrocell, sort according to the sequencing of the home cell of the non-described CSG of the home cell of the non-described CSG of the home cell of a described CSG, opening/mixed mode and closed mode; Wherein, in the home cell of a described CSG, in the home cell of the non-described CSG of described opening/mixed mode and in the home cell of the non-described CSG of described closed mode, each adjacent home cell is all sorted according to switching priority sequencing from high to low.
12. method as claimed in claim 11 is characterized in that,
First macro base station is according to the adjacent sub-district policy configurations of interface-free resources situation and/or described first terminal, the information of all or part of home cell in the adjacent home cell of described first macrocell is sent to described first terminal, wherein, described part home cell is according to vertical order, the sub-district of selecting the adjacent home cell of described first macrocell after ordering.
13. method as claimed in claim 12 is characterized in that, described transmission comprises:
Network side paging is in described first terminal of idle condition, and foundation is connected with described first terminal, and sends the information of described all or part of home cell by described connection; Perhaps,
The sub-district takes place described first terminal of waiting for network side switches or gravity treatment, and when described first terminal sends sub-district switching or gravity treatment, sends the information of described all or part of home cell by the connection of the current foundation of described first terminal.
14. want 12 described methods as right, it is characterized in that,
Described first terminal that is in idle condition, is preferentially carried out Cell searching and measurement, and is carried out the sub-district gravity treatment according to measurement result the forward sub-district of ordering in the described all or part of home cell of network side transmission further according to the ordering sequencing.
15. method as claimed in claim 14 is characterized in that, the neighbor cell of described first macrocell also comprises the adjacent macro cell of described first macrocell;
Described first macro base station is further when the mobility status of described first terminal indicates the translational speed of described first terminal to be higher than predetermined first thresholding, when sending the information of described all or part of home cell, further the information with the adjacent macro cell of described first macrocell sends to described first terminal, and the adjacent macro cell of wherein said first macrocell comes before the described all or part of home cell;
Described first terminal is further according to the ordering sequencing, the information of the adjacent macro cell of described first macrocell that network side is sent and the forward sub-district of ordering in the described all or part of home cell, preferentially carry out Cell searching and measurement, and carry out the sub-district gravity treatment according to measurement result.
16. method as claimed in claim 12 is characterized in that,
When described first terminal is in connection status and need carries out the sub-district switching, described first macro base station is further controlled described terminal according to the ordering sequencing, the forward sub-district of ordering in the adjacent home cell of described first macrocell of preferential measurement, and according to measurement result execution sub-district switching.
17. method as claimed in claim 16 is characterized in that, the neighbor cell of described first macrocell also comprises the adjacent macro cell of described first macrocell;
Described first macro base station further indicates the translational speed of described first terminal to be higher than predetermined first thresholding and described first terminal at the mobility status of described first terminal to be in connection status and need to carry out the sub-district when switching, control described terminal according to the ordering sequencing, the forward sub-district of ordering in the adjacent macro cell of described first macrocell of preferential measurement and the adjacent home cell, and according to measurement result execution sub-district switching, wherein, the adjacent macro cell of described first macrocell comes before the adjacent home cell of described first macrocell.
18. as claim 15 or 17 described methods, it is characterized in that, also comprise:
Safeguard according to the type of sub-district and specifically to comprise the mobility status of described first terminal:
Add up the number of times that sub-district gravity treatment and switching take place described first terminal in predetermined second time;
Macrocell and the sub-district gravity treatment between the home cell and the number of times of switching that described first terminal was taken place in described predetermined second time, and the sub-district gravity treatment between the home cell and the number of times sum of switching, multiply each other with predetermined weights, obtain a product, wherein, described predetermined weights are greater than 0 and less than 1;
The sub-district gravity treatment between the macrocell that described first terminal was taken place in described predetermined second time and the number of times of switching add the above product, obtain one and value;
According to the magnitude relationship between described and value and a plurality of predetermined threshold, determine the mobility status of described first terminal.
19. method as claimed in claim 18 is characterized in that,
In the process of carrying out switching of described sub-district or gravity treatment, described first macrocell further utilizes the information of the target home cell that is comprised in the information of the described all or part of home cell that described network node sends, switch the execution sub-district, and the information of described target home cell comprises CSG ID and access module at least.
20. support the network node of mobile management in the cordless communication network, it is characterized in that, comprising:
Switch the priority maintenance unit, be used for each adjacent home cell, safeguard the switching priority of described each adjacent home cell according to the statistical information of sub-district gravity treatment and switching at the arbitrary sub-district of neighborhood information table that makes up in advance; Wherein, described neighborhood information table comprises the information of the adjacent home cell of the information of adjacent home cell of macrocell and home cell, and the adjacent home cell of described macrocell comprises the home cell in the described macrocell coverage area;
The optimization process unit is used for according to the CSG information under described switching priority and the terminal, controls described terminal and carries out Cell searching, gravity treatment and handoff procedure.
21. network node as claimed in claim 20 is characterized in that,
Described switching priority maintenance unit, also be used to judge the number of times that in the predetermined very first time, takes place from described arbitrary sub-district successful switch and gravity treatment to described each adjacent home cell, and the switching priority of described each adjacent home cell is set according to described number of times, wherein, the switching priority of described adjacent home cell often is higher than the switching priority of the few adjacent home cell of described number of times.
22. network node as claimed in claim 21 is characterized in that,
Described switching priority is provided with the unit, also be used to judge the sub-district handoff failure that in the described predetermined very first time, whether takes place from described arbitrary sub-district to described each adjacent home cell, if then reduce the switching priority of described each adjacent home cell according to predetermined policy.
23. network node as claimed in claim 20 is characterized in that, also comprises:
The neighborhood maintenance unit, be used to receive the information of the macrocell at the information of adjacent home cell of information, this Home eNodeB of the home cell of this Home eNodeB correspondence that Home eNodeB reports and this Home eNodeB place, and the information of the macrocell at the information of the adjacent home cell of the information of the home cell of this Home eNodeB correspondence that reports according to each Home eNodeB, this Home eNodeB and this Home eNodeB place, set up and maintenance of neighbor relation information table.
24. network node as claimed in claim 23 is characterized in that,
The information of the home cell of described this Home eNodeB correspondence comprises the part or all of of following parameter: PCI, E-CGI, CSG sign, access module, Home eNodeB sign and tracing area sign;
The information of the adjacent home cell of described this Home eNodeB comprises the part or all of of following parameter: PCI, E-CGI, frequency point information, tracing area sign;
The information of the macrocell at described this Home eNodeB place comprises the part or all of of following parameter: PCI, E-CGI, frequency point information, tracing area sign;
The information of the adjacent home cell of described macrocell comprises the part or all of of following parameter: PCI, E-CGI, CSG sign, access module, Home eNodeB sign and tracing area sign;
The information of the adjacent home cell of described home cell comprises the part or all of of following parameter: PCI, E-CGI, CSG sign, access module, Home eNodeB sign and tracing area sign.
25. network node as claimed in claim 23 is characterized in that,
Described optimization process unit, also be used for adjacent home cell, sort according to the sequencing of the home cell of the non-described CSG of the home cell of the non-described CSG of the home cell of described CSG, opening/mixed mode and closed mode to described terminal present located first sub-district; Wherein, in the home cell of described CSG, in the home cell of the non-described CSG of described opening/mixed mode and in the home cell of the non-described CSG of described closed mode, each adjacent home cell is all sorted according to switching priority sequencing from high to low; And, control described terminal to the forward sub-district of ordering in the adjacent home cell of described first sub-district, preferentially carry out described Cell searching, gravity treatment and handoff procedure.
26. network node as claimed in claim 25 is characterized in that,
Described optimization process unit, also be used for when the mobility status of described terminal indicates the translational speed of described terminal to be higher than predetermined first thresholding, control described terminal according to the ordering sequencing, described Cell searching, gravity treatment and handoff procedure are preferentially carried out in the sub-district forward to the ordering in the neighbor cell of described first sub-district; Wherein, in the neighbor cell of described first sub-district, the adjacent macro cell of described first sub-district comes before the adjacent home cell of described first sub-district.
27. network node as claimed in claim 26 is characterized in that, also comprises:
The mobility status maintenance unit is used to add up the number of times that sub-district gravity treatment and switching take place described terminal in predetermined second time; Macrocell and the sub-district gravity treatment between the home cell and the number of times of switching that described terminal was taken place in described predetermined second time, and the number of times sum of the gravity treatment of the sub-district between the home cell/switching multiplies each other with predetermined weights, obtains a product, wherein, described predetermined weights are greater than 0 and less than 1; The sub-district gravity treatment between the macrocell that described terminal was taken place in described predetermined second time and the number of times of switching add the above product, obtain one and value; According to the magnitude relationship between described and value and a plurality of predetermined threshold, determine the mobility status of described terminal.
28. network node as claimed in claim 23 is characterized in that, also comprises:
First issues the unit, be used for after first terminal enters the overlay area of described First Family sub-district, described network node is selected the information of the neighbor cell of First Family sub-district from described neighborhood information table, and the information of the switching priority of the neighbor cell of the information of the neighbor cell of described First Family sub-district and described First Family sub-district is sent to the First Family base station of described First Family sub-district correspondence, wherein, the neighbor cell of First Family sub-district comprises; The macrocell at the adjacent home cell of described First Family sub-district, place, described First Family base station.
29. network node as claimed in claim 23 is characterized in that, also comprises:
Second issues the unit, be used for after first terminal enters the overlay area of described first macrocell, described network node is selected the information of the neighbor cell of first macrocell from described neighborhood information table, and the information of the switching priority of the neighbor cell of the information of the neighbor cell of described first macrocell and described first macrocell is sent to first macro base station of the described first macrocell correspondence, wherein, the neighbor cell of first macrocell comprises the adjacent home cell of described first macrocell.
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