CN103907372A - Method, device and system for negotiating mobility parameter - Google Patents

Method, device and system for negotiating mobility parameter Download PDF

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Publication number
CN103907372A
CN103907372A CN201280042832.9A CN201280042832A CN103907372A CN 103907372 A CN103907372 A CN 103907372A CN 201280042832 A CN201280042832 A CN 201280042832A CN 103907372 A CN103907372 A CN 103907372A
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China
Prior art keywords
base station
offset
community
trigger parameter
handover trigger
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CN201280042832.9A
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Chinese (zh)
Inventor
张宏卓
宋平
亨里克·奥鲁佛松
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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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
    • H04W36/0055—Transmission or use of information for re-establishing the radio link
    • H04W36/0064—Transmission or use of information for re-establishing the radio link of control information between different access points
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W92/00—Interfaces specially adapted for wireless communication networks
    • H04W92/16—Interfaces between hierarchically similar devices
    • H04W92/20—Interfaces between hierarchically similar devices between access points

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

Provided are a method, a device and a system for negotiating a mobility parameter, wherein the method comprises: a first base station sending a first request message to a second base station, wherein the first request message is used for requesting the second base station to send a first offset of a switch triggering parameter of a second cell, the first offset refers to an offset of a current value of the switch triggering parameter of the second cell relative to a default value, the second base station is an adjacent base station of the first base station, the second base station is a control base station of the second cell, and the second cell is an adjacent cell of a first cell controlled by the first base station; the first base station receiving a first response message sent by the second base station, wherein the first response message contains the first offset. Through the technical scheme, the first base station can provide an accurate advice for the second base station on a subsequent change value of the switch triggering parameter of the second cell according to the first offset.

Description

Method, device and system for negotiating mobility parameter
Machinery of consultation, equipment and the systems technology field of mobility parameters
The present invention relates to the communications field, more particularly to a kind of machinery of consultation of mobility parameters, equipment and system.Background technology
In Long Term Evolution (Long Term Evolution, LTE) system, base station（Such as evolution base station, abbreviation eNB) between the negotiation that flow realizes the handover trigger parameter (Handover Trigger) of neighbor cell is sexually revised by the movement of X2 interface.Handover trigger parameter represents that eNB performs the offset of switching to a cell.Specifically, handover trigger parameter is a thresholding, when reaching this thresholding, and a cell initiates switching preparation process to a specific neighbor cell.Webmaster can configure the default value and effective range of handover trigger parameter to eNB.
In the negotiations process of existing handover trigger parameter, if eNBl is the control base station of cell 1, eNB2 is the control base station of cell 2, cell 2 is the neighbor cell of cell 1, eNBl sends movement to eNB2 and sexually revises request message, eNBl is carried in the request message and advises eNB2 to the change value of the handover trigger parameter of cell 2, the change value is relative to the change value of the current handover trigger parameter of cell 2.If eNB2 receives the change value of eNBl suggestions and completes modification, sending movement to eNBl sexually revises confirmation message, if eNB2 refuses the change value or fails to complete modification, sending movement to eNBl sexually revises failed message.If eNBl needs eNB2 by the handover trigger parameter reset of cell 2, eNBl is carried in movement sexually revises request message resets mark, when eNB2 receives reset mark, i.e., by the handover trigger parameter reset of cell 2 to default value.
In existing handover trigger parameter-negotiation procedure, there is a situation where that the offset of the handover trigger parameter of the cell 2 of eNBl and eNB2 records is inconsistent, cause eNBl can not accurately determine change values of the follow-up suggestion eNB2 to the handover trigger parameter of cell 2. The content of the invention
The embodiments of the invention provide a kind of machinery of consultation of mobility parameters, equipment and system.The technical scheme is as follows.
In a first aspect, a kind of method of the negotiation of mobility parameters, methods described includes：First base station sends the first request message to the second base station, first request message is used for the first offset of the handover trigger parameter for asking second base station to send second community, first offset refers to offset of the currency relative to default value of the handover trigger parameter of the second community, second base station is the adjacent base station of the first base station, second base station is the control base station of the second community, and the second community is the neighbor cell of the first community under the first base station control；The first base station, which is received, includes first offset in the first response message that second base station is sent, first response message.
In the first possible implementation of the first aspect, included in first request message：The cell ID of the first community, the cell ID of the second community and the request mark for asking the second base station transmission first offset.The request mark includes implicit identification or explicit identification.The implicit identification includes：The first base station advises that the change value of the mobility parameters of second base station is 0;Or, the first base station advises that the change value of the change value of the mobility parameters of second base station and the mobility parameters of the first base station is all 0.
In second of possible implementation of the first aspect, methods described also includes：The first base station judges whether the handover trigger parameter of the second community needs adjustment according to first offset；If the first base station judges that the handover trigger parameter of the second community needs adjustment according to first offset, then the first base station sends the second request message to second base station, and second request message is used for the handover trigger parameter for asking second base station to adjust the second community.
Wherein, the first base station judges whether the handover trigger parameter of the second community needs adjustment according to first offset, including：The first base station obtains the second offset according to first offset, second offset represents that the first base station advises that second base station switches over the value of trigger parameter adjustment to the second community, if second offset is not equal to 0, the first base station judges that the handover trigger parameter of the second community needs adjustment；It is described that second request message is further used for request Second base station adjusts the handover trigger parameter of the second community according to second offset.Wherein, the first base station obtains the second offset according to first offset, including：The first base station calculates the first difference of first offset that second base station described in the first base station should be sent to the value of the handover trigger parameter adjustment of the second community with second base station, and regard first difference as second offset；Or, the first base station calculates the first base station and expects the second difference of first offset that second base station sends the value of the handover trigger parameter adjustment of the second community and second base station, and regard second difference as second offset；Or, if the first base station expects second base station by the handover trigger parameter reset of the second community, second base station regard the negative value of first offset as second offset.
In the third possible implementation of the first aspect, methods described also includes：The first base station receives the second response message that second base station is sent, and second response message represents handover trigger parameter adjustment success or failure of second base station to the second community.
In the 4th kind of possible implementation of the first aspect, the reason for also including adjustment handover trigger parameter in first request message.Correspondingly, first offset included in first response message is offset corresponding with the reason.
Wherein, include the reason for the adjustment handover trigger parameter：The reason for related to mobility load balancing MLB or it is related with Mobility Robust Optimization MRO the reason for.If the reason for the reason for adjustment handover trigger parameter included in first request message is described related to MLB, first request message represents the offset for the handover trigger parameter for asking second base station to send the second community produced due to MLB.If the reason for the reason for adjustment handover trigger parameter included in first request message is described related to MRO, then first request message represents the offset for the handover trigger parameter for asking second base station to send the second community produced due to MRO, or, it is described the sum of the offset of the handover trigger parameter of the second community produced due to MRO and the reason for MLB that first request message represents to ask second base station to send.
A kind of second aspect, base station, the base station is used to control first community, and the base station includes：First transmitting element, for sending the first request message to adjacent base station, first request message is used to ask institute State the first offset that adjacent base station sends the handover trigger parameter of second community, first offset refers to offset of the currency relative to default value of the handover trigger parameter of the second community, the adjacent base station is the control base station of the second community, and the second community is the neighbor cell of the first community；With the first receiving unit, first offset is included for receiving in the first response message that the adjacent base station is sent, first response message.
In the first possible implementation of the second aspect, included in the first request message that first transmitting element is sent：The cell ID of the first community, the cell ID of the second community and the request mark for asking the adjacent base station transmission first offset.The request mark includes implicit identification or explicit identification.The implicit identification includes：Advise that the change value of the mobility parameters of the adjacent base station is 0 in the base station;Or, the base station advises that the change value of the change value of the mobility parameters of the adjacent base station and the mobility parameters of the base station is all 0.
In second of possible implementation of the second aspect, the base station also includes：Judging unit, first offset for being received according to first receiving unit judges whether the handover trigger parameter of the second community needs adjustment；With the second transmitting element, for when the judged result of the judging unit needs adjustment for the handover trigger parameter of the second community, the second request message is sent to the adjacent base station, second request message is used for the handover trigger parameter for asking the adjacent base station to adjust the second community.
Wherein, the judging unit further comprises, handles subelement, and for obtaining the second offset according to first offset, second offset represents to advise the value that the adjacent base station switches over the second community trigger parameter adjustment；And judgment sub-unit, if second offset that the processing subelement is obtained is not equal to 0, judging the handover trigger parameter of the second community needs adjustment；Second request message that second transmitting element is sent is further used for the handover trigger parameter for asking the adjacent base station to adjust the second community according to second offset.The processing subelement is further used for, the first difference of first offset that the adjacent base station described in the base station should be received to the value of the handover trigger parameter adjustment of the second community with first receiving unit is calculated, and regard first difference as second offset；Or, calculate the base station and expect the adjacent base station by the second community Second difference of first offset that the value of handover trigger parameter adjustment is received with first receiving unit, and it regard second difference as second offset；Or, it regard the negative value of first offset as second offset.
In the third possible implementation of the second aspect, the base station also includes：Second receiving unit, for receiving the second response message that the adjacent base station is sent, second response message represents handover trigger parameter adjustment success or failure of the adjacent base station to the second community.
In the 4th kind of possible implementation of the second aspect, the reason for also including adjustment handover trigger parameter in first request message that first transmitting element is sent.Correspondingly, first offset included in first response message that first receiving unit is received is offset corresponding with the reason.
Wherein, include the reason for the adjustment handover trigger parameter：The reason for related to mobility load balancing MLB or it is related with Mobility Robust Optimization MRO the reason for.If the reason for the reason for adjustment handover trigger parameter included in first request message that first transmitting element is sent is described related to MLB, first request message represents the offset for the handover trigger parameter for asking the adjacent base station to send the second community produced due to MLB.If the reason for the reason for adjustment handover trigger parameter included in first request message that first transmitting element is sent is described related to MRO, then first request message represents the offset for the handover trigger parameter for asking the adjacent base station to send the second community produced due to MRO, or, it is described the sum of the offset of the handover trigger parameter of the second community produced due to MRO and the reason for MLB that first request message represents to ask the adjacent base station to send.
The third aspect, a kind of base station, including memory and processor, for performing the method that foregoing mobility parameters are consulted.
Fourth aspect, a kind of communication system, the communication system includes foregoing base station, also include the adjacent base station of the base station, the adjacent base station is used to receive the first request message that the base station is sent, and the first offset of the handover trigger parameter comprising second community in the first response message, first response message is sent to the base station. Pass through the technical scheme, first base station can know offset of the currency relative to default value of the handover trigger parameter of second community, so as to know the accumulated value for the modification that the second base station is made to the handover trigger parameter of second community, therefore, first base station can accurately advise change value of follow-up second base station to the handover trigger parameter of second community according to the offset.Brief description of the drawings
Fig. 1 is a kind of machinery of consultation flow chart of mobility parameters provided in an embodiment of the present invention；Fig. 2 is the machinery of consultation flow chart of another mobility parameters provided in an embodiment of the present invention；Fig. 3 is a kind of method flow diagram for adjusting mobility parameters provided in an embodiment of the present invention；Fig. 4 is a kind of structural representation of base station provided in an embodiment of the present invention；
Fig. 5 is the structural representation of another base station provided in an embodiment of the present invention；
Fig. 6 is a kind of structural representation of communication system provided in an embodiment of the present invention.Embodiment
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with accompanying drawing, embodiment of the present invention is described further in detail.As shown in figure 1, present embodiments providing a kind of method that mobility parameters are consulted, this method includes herein below.
101, first base station sends the first request message to the second base station, and first request message is used for the first offset of the handover trigger parameter for asking second base station to send second community.First offset refers to offset of the currency relative to default value of the handover trigger parameter of the second community, second base station is the adjacent base station of the first base station, second base station is the control base station of the second community, and the second community is the neighbor cell of the first community under the first base station control.
Alternatively, the default value can be webmaster（Such as operation management maintainance system）The initial value of the handover trigger parameter configured to cell 2.
As an alternative embodiment, included in first request message：The cell mark of the first community Knowledge, the cell ID of the second community and the request mark for asking the second base station transmission first offset.Alternatively, the request mark includes implicit identification or explicit identification.It is described to state implicit identification and include during implementing：The first base station advises that the change value of the mobility parameters of second base station is 0;Or, the first base station advises that the change value of the change value of the mobility parameters of second base station and the mobility parameters of the first base station is all 0.
102, the first base station, which is received, includes first offset in the first response message that second base station is sent, first response message.
The technical scheme provided by the present embodiment, first base station can know offset of the currency relative to default value of the handover trigger parameter of second community, know the accumulated value for the modification that the second base station is made to the handover trigger parameter of second community, therefore, first base station can accurately advise change value of follow-up second base station to the handover trigger parameter of second community according to the offset.
As another alternative embodiment, methods described can also include：The first base station judges whether the handover trigger parameter of the second community needs adjustment according to first offset；If the first base station judges that the handover trigger parameter of the second community needs adjustment according to first offset, then the first base station sends the second request message to second base station, and second request message is used for the handover trigger parameter for asking second base station to adjust the second community.
Wherein, the first base station judges whether the handover trigger parameter of the second community needs adjustment according to first offset, including：The first base station obtains the second offset according to first offset, second offset represents that the first base station advises that second base station switches over the value of trigger parameter adjustment to the second community, if second offset is not equal to 0, the first base station judges that the handover trigger parameter of the second community needs adjustment.Correspondingly, second request message is further used for the handover trigger parameter for asking second base station to adjust the second community according to second offset.
Further, the first base station obtains the second offset according to first offset, including：The first base station calculates the first difference of first offset that second base station described in the first base station should be sent to the value of the adjustment of the handover trigger parameter of the second community with second base station, and regard first difference as second offset；Or, the first base station calculates first base station expectation Second difference of first offset that second base station sends the value of the handover trigger parameter adjustment of the second community and second base station, and it regard second difference as second offset；Or, if the first base station expects second base station by the handover trigger parameter reset of the second community, second base station regard the negative value of first offset as second offset.
Alternatively, the first base station receives the second response message that second base station is sent, and second response message represents handover trigger parameter adjustment success or failure of second base station to the second community.
Pass through above-mentioned alternative embodiment, first base station can be according to the first offset of the second community of the second base station feedback, it is recommended that the second base station is adjusted to the handover trigger parameter of second community, make modification of second base station to the handover trigger parameter of second community consistent with the modification or the desired modification of first base station that first base station is recorded, it is to avoid in the prior art when occurring carrying out switching call drop caused by simple reset and the influence to network performance when parameter adjustment is inconsistent.
It is used as another alternative embodiment, can also be comprising adjustment handover trigger parameter in the first request message in above-described embodiment the reason for, correspondingly, first offset included in the first response message in above-described embodiment is offset corresponding with the reason.The reason for adjustment handover trigger parameter, includes：With mobility load balancing（Mobility Load Balancing, MLB) it is related the reason for or and Mobility Robust Optimization（Mobility Robust Optimisation, MRO) it is related the reason for.If the reason for the reason for adjustment handover trigger parameter included in first request message is described related to MLB, first request message represents the offset for the handover trigger parameter for asking second base station to send the second community produced due to MLB.If the reason for the reason for adjustment handover trigger parameter included in first request message is described related to MR0, first request message represents the offset for the handover trigger parameter for asking second base station to send the second community produced due to MR0；Or, it is described the sum of the offset of the handover trigger parameter of the second community produced due to MR0 and the reason for MLB that first request message represents to ask second base station to send.
Pass through above-mentioned alternative embodiment, first base station can know the modification to the handover trigger parameter of second community due to the second base station that different reasons are produced, to ensure that the adjustment that the second base station of follow-up first base station suggestion is carried out to the handover trigger parameter of second community is more targeted. As shown in Fig. 2 present embodiments providing a kind of machinery of consultation of mobility parameters.In the present embodiment, eNB2 is eNBl adjacent base station, and eNBl is the control base station of cell 1, and eNB2 is the control base station of cell 2, and cell 2 is the neighbor cell of cell 1, i.e., cell 2 is the neighbor cell of the cell 1 under eNBl controls.This method includes herein below.
201st, eNBl sends the first request message to eNB2, and first request message is used for the first offset of the handover trigger parameter for asking the eNB2 to send cell 2.First offset refers to offset of the currency relative to default value of the handover trigger parameter of the cell 2.Alternatively, the default value can be webmaster（Such as operation management maintainance system）The initial value of the handover trigger parameter configured to cell 2.
As an alternative embodiment, first request message can be that movement sexually revises request（For example
MOBILITY CHANGE REQEUST) message, it can include in the message：The mark of the cell 1 of eNBl controls（Such as eNBl Cell ID), eNB2 control cell 2 mark（Such as eNB2 Cell ID) and request mark（Flag), wherein, it is described request mark be used for ask eNB2 send the handover trigger parameter of cell 2 the first offset.Alternatively, the request mark can be explicit identification, i.e., directly represent that request eNB2 sends the mark of the first offset, such as offset request mark.The request mark can also be implicit identification, the first offset for asking eNB2 to send cell 2 is impliedly represented with the specific value of particular cell, for example, the change value of the eNBl suggestions eNB2 included in the request message mobility parameters is 0 (such as eNB2 Proposed Mobility Parameters=0), or the change value of eNBl mobility parameters is 0 (such as eNBl Mobility Parameters=0) and eNBl advises that the change value of eNB2 mobility parameters is 0 (such as eNB2 Proposed Mobility Parameters=0).That is, as eNB2 Proposed Mobility Parameters included in MOBILITY CHANGE REQEUST message=0, or when eNBl Mobility Parameters=0 and eNB2 Proposed Mobility Parameters included in MOBILITY CHANGE REQEUST message=0, represent that eNBl requests eNB2 returns to the first offset of the handover trigger parameter of the cell 2.
202nd, the eNBl receives the eNB2 and sent in the first response message, the response message comprising first offset. During implementing, the first response message in 102 can change for mobility confirms (MOBILITY CHANGE ACKNOWLEDE) message, first offset is included i.e. in MOBILITY CHANGE ACKNOWLEDE message, for example, represents first offset with Handover Trigger Offset cells in MOBILITY CHANGE ACKNOWLEDE message.
The technical scheme provided by the present embodiment, eNBl can know offset of the currency relative to default value of the handover trigger parameter of cell 2, so as to know the accumulated value for the modification that eNB2 is made to the handover trigger parameter of cell 2, therefore, eNBl can accurately advise change values of the follow-up eNB2 to the handover trigger parameter of cell 2 according to the offset.
As an alternative embodiment, the reason for can also including adjustment handover trigger parameter in the first request message in described 201.For example, it is related to MLB the reason for or it is related with MRO the reason for.Wherein, related to MLB the reason for, switches including resource optimization（Resource Optimisation Handover, ROH) and reduction serving cell load（Reduce Load in Serving Cell), the switching needed to MRO the reason for related including wireless reason（Handover Desirable for Radio Reasons, HDRR) and switching it is pressed for time（ Time Critical Handover, TCH).
It is used as an alternative embodiment, if the reason for including related to MLB in first request message, first request message represents the offset for the handover trigger parameter that the eNBl asks the eNB2 to send the cell 2 produced due to MLB.For example, the default value of the handover trigger parameter of cell 2 is 5db, the handover trigger parameter of cell 2 is revised as 7db by eNB2 due to MLB, then the offset of the handover trigger parameter of the cell 2 produced due to MLB is 2db.
It is used as another alternative embodiment, if the reason for the reason for adjustment handover trigger parameter included in first request message is described related to MRO, first request message represents the offset for the handover trigger parameter that the eNBl asks the eNB2 to send the cell 2 produced due to MRO.For example, the default value of the handover trigger parameter of cell 2 is 5db, the handover trigger parameter of cell 2 is revised as 9db by eNB2 due to MRO.So, the offset of the handover trigger parameter produced due to MRO is 4db.
As another alternative embodiment, if the adjustment handover trigger parameter included in first request message The reason for the reason for be described related to MRO, then to represent that the eNBl asks the eNB2 to send described the sum of the offset of the handover trigger parameter of the cell 2 produced due to MRO and the reason for MLB for first request message.For example, the default value of the handover trigger parameter of cell 2 is 5db, the handover trigger parameter of cell 2 is revised as 7db by eNB2 due to MLB, and the handover trigger parameter of cell 2 is revised as 9db by eNB2 due to MRO.So, the offset of the handover trigger parameter produced due to MLB is 2db, the offset of the handover trigger parameter produced due to MRO is 4db, described the offset of the handover trigger parameter that is produced due to MRO and the reason for MLB and to be（2db+4db), i.e. 6db.During implementing, eNB2 can, by repeatedly adjustment, default value 5db is modified into 7db or 9db or disposable default value is modified into 7db or 9db from 5db.
By above-mentioned alternative embodiment, eNBl can know the modification to the handover trigger parameter of cell 2 due to the eNB2 that different reasons are produced, to ensure that the adjustment that the eNB2 of follow-up eNBl suggestions is carried out to the handover trigger parameter of cell 2 is more targeted.
As another alternative embodiment, if after described 201, eNBl does not receive first response message of eNB2 feedback, i.e. eNBl does not receive the first offset of the handover trigger parameter of the cell 2, then eNBl is to webmaster（Such as Element management system or oam system）Send handover trigger parameter reset failed message or the inconsistent alarm information of handover trigger parameter or handover trigger parameter negotiation failed message.The message includes the cell ID of cell 1 and the cell ID of cell 2.During implementing, eNBl can set a timer, and eNBl is after first request message is sent, start the timer, when the timer expiry, and eNBl still without first response message for receiving eNB2 transmissions when, eNBl sends the message to webmaster again.As shown in figure 3, on the basis of the embodiment shown in Fig. 2, present embodiments providing a kind of method for adjusting mobility parameters.In the present embodiment, eNBl is the control base station of cell 1, and eNB2 is the control base station of cell 2, and eNB2 is eNBl adjacent base station, and cell 2 is the neighbor cell of cell 1, i.e., cell 2 is the neighbor cell of the cell 1 under eNBl controls.This method includes herein below. 301-302, content is identical with 201-202, detailed content embodiment shown in Figure 2, and here is omitted.
303rd, the eNBl judges whether the handover trigger parameter of the cell 2 needs adjustment according to first offset；If the eNBl judges that the handover trigger parameter of the cell 2 needs adjustment according to first offset, 304 are performed.
Specifically, the eNBl judges whether the handover trigger parameter of the cell 2 needs adjustment according to first offset, including：The eNBl obtains the second offset according to first offset, second offset represents that the eNBl advises that the eNB2 switches over the value of trigger parameter adjustment to the cell 2, if second offset is not equal to 0, the eNBl judges that the handover trigger parameter of the cell 2 needs adjustment.
Alternatively, if the second offset described in 303 is equal to 0,304 can not be performed.
During implementing, the method that the eNBl obtains the second offset according to first offset can have a variety of, including but not limited to the method for three below alternative embodiment.
It is used as an alternative embodiment, the eNBl calculates the first difference of first offset that the eNB2 described in the eNBl should be sent to the value and the eNB2 of the adjustment of the handover trigger parameter of the cell 2, and regard first difference as second offset.If for example, the eNB2 of eNBl records should be to the handover trigger parameter adjustment 5db of cell 2, and the first offset of eNB2 feedbacks is 4db, then eNBl is calculated（5db-4db), it is ldb to obtain the second offset.Correspondingly, the value of the eNB2 Proposed Mobility Parameters in the second request message that eNBl is sent to eNB2 is ldb, i.e. eNBl asks eNB2 by the handover trigger parameter adjustment ldb of cell 2.In addition, if it is 0 that eNBl, which is calculated and obtained second offset, represent that the value for the handover trigger parameter that the eNB2 described in eNBl should be adjusted is consistent with the value of the handover trigger parameter of the actual adjustment of eNB2, then eNBl can not subsequently ask the handover trigger parameter of eNB2 adjustment cells 2,304 can not be performed after i.e. 303, terminates flow.
It is used as another alternative embodiment, the eNBl calculates the eNBl and expects the eNB2 by the second difference of the value of the handover trigger parameter adjustment of the cell 2 and the eNB2 first offset sent, and regard second difference as second offset.If for example, eNBl expects that eNB2 will be small The handover trigger parameter adjustment 5db in area 2, and the first offset of eNB2 feedbacks is 6db, then eNBl is calculated（5db-6db), the second offset of acquisition is-ldb.Correspondingly, the value of the eNB2 Proposed Mobility Parameters in the second request message that eNBl is sent to eNB2 is-ldb, i.e. eNBl asks eNB2 by the handover trigger parameter adjustment-ldb of cell 2.In addition, if it is 0 that eNBl, which is calculated and obtained second offset, represent that eNBl expects that the value of the handover trigger parameter of eNB2 adjustment is consistent with the value of the handover trigger parameter of the actual adjustment of eNB2, then eNBl can not subsequently ask the handover trigger parameter of eNB2 adjustment cells 2,304 can not be performed after i.e. 303, terminates flow.
As another alternative embodiment, if the eNBl expects the eNB2 by the handover trigger parameter reset of the cell 2, the eNB2 regard the negative value of first offset as second offset.For example, if eNBl expects eNB2 by the handover trigger parameter reset of cell 2, and the first offset that eNBl receives eNB2 feedbacks is 5db, so eNBl regard -5db as the second offset, correspondingly, eNBl is -5db to the eNB2 eNB2 Proposed Mobility Parameters sent value, i.e. eNBl asks eNB2 by the handover trigger parameter adjustment -5db of cell 2.
304, the eNBl send the second request message to the eNB2, and second request message is used for the handover trigger parameter for asking the eNB2 to adjust the cell 2.
Specifically, the second request message is further used for the handover trigger parameter for asking the eNB2 to adjust the cell 2 according to second offset.
As an alternative embodiment, second request message can be that movement sexually revises request message（Such as MOBILITY CHANGE REQEUST), it can include in the message：The mark of the cell 1 of eNBl controls（Such as eNBl Cell ID), eNB2 control cell 2 mark（Such as eNB2 Cell ID) and the second offset, wherein the second offset can be represented with eNB2 Proposed Mobility Parameters.
305th, the eNBl receives the second response message that the eNB2 is sent, and second response message includes representing the successful message of handover trigger parameter adjustment or represents handover trigger parameter adjustment failure.305 be optional step.
For example, second response message, which can be movement, sexually revises confirmation (MOBILITY CHANGE ACKNOLEDGE) message or movement sexually revise failure（MOBILITY CHANGE FAILURE) message.Alternatively, the reason for reset failure can be also carried in the MOBILITY CHANGE FAILURE message, such as parameter modification over range.
Pass through above-described embodiment, first offset of the cell 2 that eNBl can feed back according to eNB2, it is recommended that eNB2 is adjusted to the handover trigger parameter of cell 2, make modifications of the eNB2 to the handover trigger parameter of cell 2 consistent with the eNBl modifications recorded or the desired modifications of eNBl, it is to avoid in the prior art when there is simply caused by reset to defaults can only switching when parameter adjustment is inconsistent call drop and influence to network performance.As shown in figure 4, the present embodiment provides a kind of base station 400, the base station 400 is used to control first community, and the base station 400 includes：First transmitting element 401 and the first receiving unit 402.The base station 400 that the present embodiment is provided can realize embodiment of the method as shown in Figures 2 and 3, and specific implementation is with reference to preceding method embodiment, and here is omitted.
Specifically, first transmitting element 401 is used to send the first request message to adjacent base station, first request message is used for the first offset of the handover trigger parameter for asking the adjacent base station to send second community, first offset refers to offset of the currency relative to default value of the handover trigger parameter of the second community, the adjacent base station is the control base station of the second community, and the second community is the neighbor cell of the first community.First receiving unit 402, which is used to receive in the first response message that the adjacent base station is sent, first response message, includes first offset.
Alternatively, included in the first request message that first transmitting element 401 is sent：The cell ID of the first community, the cell ID of the second community and the request mark for asking the adjacent base station transmission first offset.The request mark includes implicit identification or explicit identification.The implicit identification includes：Advise that the change value of the mobility parameters of the adjacent base station is 0 in the base station 400;Or, the base station 400 advises that the change value of the change value of the mobility parameters of the adjacent base station and the mobility parameters of the base station 400 is all 0.
Alternatively, the base station 400 also includes：The transmitting element 404 of judging unit 403 and second. The judging unit 403 is used to judge whether the handover trigger parameter of the second community needs adjustment according to first offset that first receiving unit 401 is received.Second transmitting element 404 is used for when the judged result of the judging unit 403 needs adjustment for the handover trigger parameter of the second community, the second request message is sent to the adjacent base station, second request message is used for the handover trigger parameter for asking the adjacent base station to adjust the second community.
Further, the judging unit 403 further comprises：Handle subelement 4031 and judgment sub-unit 4032.
The processing subelement 4031 is used to obtain the second offset according to first offset, and second offset represents to advise the value that the adjacent base station switches over the second community trigger parameter adjustment.If second offset that the judgment sub-unit 4032 is used for processing subelement 4031 acquisition is not equal to 0, judges the handover trigger parameter of the second community and need adjustment.Second request message that second transmitting element 404 is sent is further used for the handover trigger parameter for asking the adjacent base station to adjust the second community according to second offset.
Specifically, the processing subelement 4031 is further used for：The first difference of first offset that the adjacent base station described in the base station should be received to the value of the handover trigger parameter adjustment of the second community with first receiving unit 401 is calculated, and regard first difference as second offset；Or, calculate the base station and expect the second difference of first offset that the adjacent base station receives the value of the handover trigger parameter adjustment of the second community and first receiving unit 401, and regard second difference as second offset；Or, it regard the negative value of first offset as second offset.
Alternatively, the base station 400 also includes：Second receiving unit 405, for receiving the second response message that the adjacent base station is sent, second response message represents handover trigger parameter adjustment success or failure of the adjacent base station to the second community.
Alternatively, the reason in first request message that the first transmitting element 401 of submitting a written statement to a higher authority is sent also comprising adjustment handover trigger parameter.Correspondingly, first offset included in first response message that first receiving unit 402 is received is offset corresponding with the reason.
Wherein, include the reason for the adjustment handover trigger parameter：The reason for related to MLB or and MRO Related the reason for.If the reason for the reason for adjustment handover trigger parameter included in first request message that first transmitting element 401 is sent is described related to MLB, first request message represents the offset for the handover trigger parameter for asking the adjacent base station to send the second community produced due to MLB.If the reason for the reason for adjustment handover trigger parameter included in first request message that first transmitting element 401 is sent is described related to MRO, then first request message represents the offset for the handover trigger parameter for asking the adjacent base station to send the second community produced due to MRO, or, it is described the sum of the offset of the handover trigger parameter of the second community produced due to MRO and the reason for MLB that first request message represents to ask the adjacent base station to send.
The base station provided by above-described embodiment, first offset of the neighbor cell that the base station can feed back according to adjacent base station, it is recommended that adjacent base station is adjusted to the handover trigger parameter of neighbor cell, make the modification or desired modification of the base station record that adjacent base station provided the modification of the handover trigger parameter of neighbor cell and the present invention consistent, it is to avoid in the prior art when there is simply caused by reset to defaults can only switching when parameter adjustment is inconsistent call drop and influence to network performance.As shown in figure 5, the present embodiment provides a kind of base station 500, including memory 501 and processor 502, for performing the method that embodiment is provided as shown in Figures 2 and 3, particular content is referring to the embodiment content shown in earlier figures 2 and Fig. 3.
The base station provided by above-described embodiment, first offset of the neighbor cell that the base station can feed back according to adjacent base station, it is recommended that adjacent base station is adjusted to the handover trigger parameter of neighbor cell, make the modification or desired modification of the base station record that adjacent base station provided the modification of the handover trigger parameter of neighbor cell and the present invention consistent, it is to avoid in the prior art when there is simply caused by reset to defaults can only switching when parameter adjustment is inconsistent call drop and influence to network performance.As shown in fig. 6, the present embodiment provides a kind of communication system 600, the base station 400 that the embodiment shown in the communication system 600 bag Fig. 4 is provided, the content of detailed content embodiment shown in Figure 4.The communication system 600 also includes the adjacent base station 601 of base station 400, and the adjacent base station 601 is used to receive the base station 400 the first request messages sent, and the first response message is sent to the base station 400, the first offset of the handover trigger parameter comprising second community in first response message.
The communication system provided by above-described embodiment, first offset of the neighbor cell that base station 400 can feed back according to adjacent base station 601, it is recommended that adjacent base station 601 is adjusted to the handover trigger parameter of neighbor cell, make modification of the adjacent base station 601 to the handover trigger parameter of neighbor cell consistent with the modification or desired modification that base station 400 is recorded, it is to avoid in the prior art when occur parameter adjustment it is inconsistent when can only the switching call drop simply caused by reset to defaults and the influence to network performance.
Through the above description of the embodiments, those skilled in the art can be understood that the present invention can add the mode of required common hardware to realize by software, it can certainly be realized by hardware, but the former is more preferably embodiment in many cases.Understood based on such, technical scheme can be embodied in the form of software product, and the computer software product is stored in the storage medium that can be read, such as the floppy disk of computer, hard disk or CD etc., including some instructions are to cause a computer equipment（Can be personal computer, server, or network equipment etc.）Perform the method described in each embodiment of the invention.
It is described above; only embodiment of the invention, but protection scope of the present invention is not limited thereto, any one skilled in the art the invention discloses technical scope in; change or replacement can be readily occurred in, should be all included within the scope of the present invention.Therefore, protection scope of the present invention should be based on the protection scope of the described claims.

Claims (1)

  1. Claims
    1st, a kind of machinery of consultation of mobility parameters, it is characterised in that methods described includes：
    First base station sends the first request message to the second base station, first request message is used for the first offset of the handover trigger parameter for asking second base station to send second community, first offset refers to offset of the currency relative to default value of the handover trigger parameter of the second community, second base station is the adjacent base station of the first base station, second base station is the control base station of the second community, and the second community is the neighbor cell of the first community under the first base station control；
    The first base station, which is received, includes first offset in the first response message that second base station is sent, first response message.
    2nd, according to the method described in claim 1, it is characterised in that included in first request message：The cell ID of the first community, the cell ID of the second community and the request mark for asking the second base station transmission first offset.
    3rd, method according to claim 2, it is characterised in that the request mark includes implicit identification or explicit identification.
    4th, method according to claim 3, it is characterised in that the implicit identification includes：The first base station advises that the change value of the mobility parameters of second base station is 0;Or, the first base station advises that the change value of the change value of the mobility parameters of second base station and the mobility parameters of the first base station is all 0.
    5th, according to any described methods of claim 1-4, it is characterised in that methods described also includes：The first base station judges whether the handover trigger parameter of the second community needs adjustment according to first offset；
    If the first base station judges that the handover trigger parameter of the second community needs adjustment according to first offset, then the first base station sends the second request message to second base station, and second request message is used for the handover trigger parameter for asking second base station to adjust the second community.
    6th, method according to claim 5, it is characterised in that the first base station is according to described first Offset judges whether the handover trigger parameter of the second community needs adjustment, including：The first base station obtains the second offset according to first offset, second offset represents that the first base station advises that second base station switches over the value of trigger parameter adjustment to the second community, if second offset is not equal to 0, the first base station judges that the handover trigger parameter of the second community needs adjustment；Second request message is further used for the handover trigger parameter for asking second base station to adjust the second community according to second offset.
    7th, method according to claim 6, it is characterised in that the first base station obtains the second offset according to first offset, including：
    The first base station calculates the first difference of first offset that second base station described in the first base station should be sent to the value of the handover trigger parameter adjustment of the second community with second base station, and regard first difference as second offset；Or,
    The first base station calculates the first base station and expects the second difference of first offset that second base station sends the value of the handover trigger parameter adjustment of the second community and second base station, and regard second difference as second offset；Or,
    If the first base station expects second base station by the handover trigger parameter reset of the second community, second base station regard the negative value of first offset as second offset.
    8th, according to any described methods of claim 5-7, it is characterised in that methods described also includes：The first base station receives the second response message that second base station is sent, and second response message represents handover trigger parameter adjustment success or failure of second base station to the second community.
    9th, according to any described methods of claim 1-8, it is characterised in that the reason for also including adjustment handover trigger parameter in first request message.
    10th, the method according to claim 9, it is characterised in that first offset included in first response message is offset corresponding with the reason.
    11st, the method according to claim 9 or 10, it is characterised in that include the reason for the adjustment handover trigger parameter：The reason for related to mobility load balancing MLB or it is related with Mobility Robust Optimization MRO the reason for. 12nd, method according to claim 11, it is characterized in that, if the reason for the reason for adjustment handover trigger parameter included in first request message is described related to MLB, first request message represents the offset for the handover trigger parameter for asking second base station to send the second community produced due to MLB.
    13rd, method according to claim 11, it is characterised in that if included in first request message adjustment handover trigger parameter the reason for the reason for be described related to MRO,
    First request message represents the offset for the handover trigger parameter for asking second base station to send the second community produced due to MRO, or,
    It is described the sum of the offset of the handover trigger parameter of the second community produced due to MRO and the reason for MLB that first request message represents to ask second base station to send.
    14th, a kind of base station, it is characterised in that the base station is used to control first community, and the base station includes：First transmitting element, for sending the first request message to adjacent base station, first request message is used for the first offset of the handover trigger parameter for asking the adjacent base station to send second community, first offset refers to offset of the currency relative to default value of the handover trigger parameter of the second community, the adjacent base station is the control base station of the second community, and the second community is the neighbor cell of the first community；With
    First receiving unit, first offset is included for receiving in the first response message that the adjacent base station is sent, first response message.
    15th, base station according to claim 14, it is characterised in that included in the first request message that first transmitting element is sent：The cell ID of the first community, the cell ID of the second community and the request mark for asking the adjacent base station transmission first offset.
    16th, base station according to claim 15, it is characterised in that the request mark includes implicit identification or explicit identification.
    17th, base station according to claim 16, it is characterised in that the implicit identification includes：Advise that the change value of the mobility parameters of the adjacent base station is 0 in the base station;Or,
    Advise the change value of the mobility parameters of the adjacent base station and the mobility ginseng of the base station in the base station Several change values is all 0.
    18th, according to any described base stations of claim 14-17, it is characterised in that the base station also includes：Judging unit, first offset for being received according to first receiving unit judges whether the handover trigger parameter of the second community needs adjustment；With
    Second transmitting element, for when the judged result of the judging unit needs adjustment for the handover trigger parameter of the second community, the second request message is sent to the adjacent base station, second request message is used for the handover trigger parameter for asking the adjacent base station to adjust the second community.
    19th, base station according to claim 18, it is characterized in that, the judging unit further comprises, handle subelement, for obtaining the second offset according to first offset, second offset represents to advise the value that the adjacent base station switches over the second community trigger parameter adjustment；With
    Judgment sub-unit, if second offset that the processing subelement is obtained is not equal to 0, judging the handover trigger parameter of the second community needs adjustment；
    Second request message that second transmitting element is sent is further used for the handover trigger parameter for asking the adjacent base station to adjust the second community according to second offset.
    20th, base station according to claim 19, it is characterised in that the processing subelement is further used for,
    The first difference of first offset that the adjacent base station described in the base station should be received to the value of the handover trigger parameter adjustment of the second community with first receiving unit is calculated, and regard first difference as second offset；Or,
    Calculate the base station and expect the second difference of first offset that the adjacent base station receives the value of the handover trigger parameter adjustment of the second community and first receiving unit, and regard second difference as second offset；Or,
    It regard the negative value of first offset as second offset.
    21st, according to any described base stations of claim 18-20, it is characterised in that the base station also includes：Second receiving unit, for receiving the second response message that the adjacent base station is sent, second response message represents handover trigger parameter adjustment success or failure of the adjacent base station to the second community. 22nd, according to any described base stations of claim 14-21, it is characterised in that the reason for also including adjustment handover trigger parameter in first request message that first transmitting element is sent.
    23rd, base station according to claim 22, it is characterised in that first offset included in first response message that first receiving unit is received is offset corresponding with the reason.
    24th, the base station according to claim 22 or 23, it is characterised in that include the reason for the adjustment handover trigger parameter：The reason for related to mobility load balancing MLB or it is related with Mobility Robust Optimization MRO the reason for.
    25th, base station according to claim 24, it is characterized in that, if the reason for the reason for adjustment handover trigger parameter included in first request message that first transmitting element is sent is described related to MLB, first request message represents the offset for the handover trigger parameter for asking the adjacent base station to send the second community produced due to MLB.
    26th, base station according to claim 24, it is characterised in that if included in first request message that first transmitting element is sent adjustment handover trigger parameter the reason for the reason for be described related to MRO,
    First request message represents the offset for the handover trigger parameter for asking the adjacent base station to send the second community produced due to MRO, or,
    It is described the sum of the offset of the handover trigger parameter of the second community produced due to MRO and the reason for MLB that first request message represents to ask the adjacent base station to send.
    27th, a kind of base station, it is characterised in that the base station includes memory and processor, for performing the method as described in any one of claim 1 to 26 claim.
    28th, a kind of communication system, it is characterized in that, the communication system includes the base station as described in claim 14-26 is any, also include the adjacent base station of the base station, the adjacent base station is used to receive the first request message that the base station is sent, and the first offset of the handover trigger parameter comprising second community in the first response message, first response message is sent to the base station.
CN201280042832.9A 2012-11-01 2012-11-01 Method, device and system for negotiating mobility parameter Pending CN103907372A (en)

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