CN105323788B - The physical area PCI of micro-base station determines method, apparatus, micro-base station and macro base station - Google Patents
The physical area PCI of micro-base station determines method, apparatus, micro-base station and macro base station Download PDFInfo
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- CN105323788B CN105323788B CN201410377322.8A CN201410377322A CN105323788B CN 105323788 B CN105323788 B CN 105323788B CN 201410377322 A CN201410377322 A CN 201410377322A CN 105323788 B CN105323788 B CN 105323788B
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Abstract
The present invention provides a kind of physical area PCI of micro-base station to determine that method, apparatus, micro-base station and macro base station, the physical area PCI of the micro-base station determine method, including：Determine the former PCI of the cell of micro-base station；Neighboring cell list acquisition request is sent to around micro-base station all other base station including macro base station by mobile management entity MME by micro-base station；Micro-base station receives the PCI list that macro base station is sent by MME；Otherwise, keep the former PCI of the cell constant if so, reselecting PCI of the new PCI as the cell of the micro-base station with the presence or absence of PCI identical with the former PCI of cell in micro-base station detection PCI list.Technical solution provided by the invention, the communication of micro-base station and macro base station is realized by MME, the PCI list of all cells under the macrocell corresponding to the micro-base station is got, the problem of so as to determine PCI according to the cell that the PCI list is a micro-base station, avoid PCI confusion.
Description
Technical field
The present invention relates to the physical area PCI of the communications field more particularly to a kind of micro-base station to determine method, apparatus, micro-
Base station and macro base station.
Background technique
Since in the lte networks, access side relies primarily on physical-layer cell PCI to identify cell, so if macro
Occur PCI confusion in base station range, is i.e. there are two above micro-base station cell PCI is identical in a macrocell, then can go out
The case where existing UE handover failure.
And for there is the phenomenon that PCI confusion in macro base station coverage area, since macro base station is not supported around automatically scanning
The function of micro-base station PCI, therefore PCI confusion can not be detected by macro base station.Although and micro-base station is supported around automatically scanning
The function of adjacent area, but if macro base station covering under another micro-base station apart from the micro-base station too far, have exceeded its scan model
It encloses, which can not also find the presence of the cell of another micro-base station identical with oneself PCI.
In the prior art, for PCI confusion situation, it is mainly the following solution：
(1) X2 message " eNB configuration updates " is read to differentiate：In the network being made of macro base station and micro-base station, on the one hand
Since micro-base station is large number of in macrocell, a micro-base station is difficult all to establish X2 link with remaining all micro-base station；In addition exist
In the network environment, the transmission conditions of backhaul network are limited, and it is very difficult therefore, between micro-base station to establish X2 link two-by-two.
(2) Cell Global Identification CGI is read by terminal to differentiate：On the one hand processing that such scheme will increase terminal is negative
Lotus, a CGI must be read by so that terminal is often done primary switching；On the other hand, the terminal for obtaining CGI is supported not make on a large scale at present
With most of commercialization LTE terminal can not be achieved the goal by this method.
(3) differentiated by network management：Macro base station and micro-base station respectively use independent network management, and macro base station network management can not obtain micro-
The cell list of base station, and micro-base station network management can not obtain macro base station information, therefore macro base station can not perceive two and have equally
The presence of the micro-base station cell of PCI.
Therefore, upper three kinds of prior arts are not suitable for being applied directly to the network environment being made of macro base station and micro-base station
In, for the problem that this network environment, need to propose the new scheme of one kind to solve PCI confusion.
Summary of the invention
In order to solve the above-mentioned technical problems, the present invention provides a kind of physical area PCI of micro-base station to determine method, dress
It sets, micro-base station and macro base station are got by the communication of MME realization micro-base station and macro base station corresponding to the macro small of the micro-base station
The PCI list of all cells under area avoids so as to determine PCI according to the cell that the PCI list is a micro-base station
The problem of PCI confusion.
To achieve the goals above, the present invention provides a kind of physical area PCI of micro-base station to determine method, including：
Determine that the former PCI of the cell of micro-base station, the former PCI of the cell be not identical as the PCI of the adjacent area of the cell；Micro-base station passes through shifting
Dynamic management entity MME, the neighboring cell list acquisition request for carrying the former PCI of the cell is sent to around the micro-base station and is wrapped
Include all other base station including macro base station；The micro-base station receives the PCI list that the macro base station is sent by MME, described
Include in PCI list：Other institutes in the signal cover of macrocell corresponding with the micro-base station in addition to the cell
There is the PCI of cell；The micro-base station is detected with the presence or absence of PCI identical with the former PCI of the cell in the PCI list, if
It is otherwise the PCI for reselecting a new PCI as the cell of the micro-base station keeps the former PCI of the cell constant.
The physical area PCI of above-mentioned micro-base station determines method, wherein the former PCI of the cell of the determining micro-base station
The step of include：Micro-base station obtains the PCI of periphery adjacent area by scanning mode；What selection one was not occupied by the periphery adjacent area
PCI is determined as the former PCI of the cell of micro-base station.
The physical area PCI of above-mentioned micro-base station determines method, wherein the micro-base station passes through mobile management entity
MME, it includes that macro base station exists that the neighboring cell list acquisition request for carrying the former PCI of the cell, which is sent to around the micro-base station,
The step of interior all other base station includes：The micro-base station sends the neighboring cell list acquisition request to the MME, so that
The neighboring cell list acquisition request is transmitted to target adjacent base station by the MME, and the target adjacent base station is around the micro-base station
All other base station including macro base station.
The physical area PCI of above-mentioned micro-base station determines method, wherein the micro-base station is disappeared by base station configuration transmission
Breath, base station configuration updating information or S1 establish request message and send the neighboring cell list acquisition request to the MME.
The physical area PCI of above-mentioned micro-base station determines method, wherein the micro-base station is received described macro by MME
Base station send PCI list the step of include：The micro-base station receives PCI corresponding with the cell column of the MME forwarding
Table, the PCI list are that the macro base station is fed back according to the neighboring cell list acquisition request.
The physical area PCI of above-mentioned micro-base station determines method, wherein the micro-base station detects in the PCI list
Further include after the step of with the presence or absence of PCI identical with the former PCI of cell：The micro-base station is by the new PCI of the cell
It is sent to the MME, so that the new PCI of the cell is sent to the macro base station by the MME, and by the macro base station
The new PCI of the cell is added in the PCI list corresponding with the cell.
The physical area PCI of above-mentioned micro-base station determines method, wherein when micro-base station detects in the PCI list
When in the presence of PCI identical with the former PCI of cell, the step of the PCI of the cell as the micro-base station that reselects a new PCI
Suddenly include：Judge in addition to the PCI in the PCI list, if there are unappropriated PCI；When there are unappropriated PCI
When, it selects a unappropriated PCI to be determined as the new PCI of the cell of micro-base station, otherwise, selects an occupied number least
PCI is determined as the new PCI of the cell of micro-base station, and the occupied number of the PCI is the number for occupying the cell of the PCI.
The present invention also provides a kind of physical area PCI of micro-base station to determine method, the method includes：The macro base
It stands through mobile management entity MME, receives the neighboring cell list of the former PCI for the cell for carrying the micro-base station that micro-base station is sent
Acquisition request；PCI list corresponding with the cell is sent to the micro-base station by the MME by the macro base station, so that
The micro-base station is obtained to be detected according to former PCI of the PCI list to the cell with the PCI of the determination cell, it is described
Include in PCI list：Other institutes in the signal cover of macrocell corresponding with the micro-base station in addition to the cell
There is the PCI of cell.
The physical area PCI of above-mentioned micro-base station determines method, wherein the macro base station passes through mobile management entity
MME, the step of receiving the neighboring cell list acquisition request of the former PCI for the cell for carrying the micro-base station that the micro-base station is sent
Including：The macro base station receives the neighboring cell list acquisition request of the MME forwarding, and the neighboring cell list acquisition request is institute
It states micro-base station and is sent to the MME's.
The physical area PCI of above-mentioned micro-base station determines method, wherein the macro base station is disappeared by MME configuration transmission
Breath or MME configuration update message receive the neighboring cell list acquisition request of the MME forwarding.
The physical area PCI of above-mentioned micro-base station determines method, wherein the macro base station, will be with institute by the MME
Stating the step of corresponding PCI list of cell is sent to the micro-base station includes：The macro base station is obtained according to the neighboring cell list
It requests to send corresponding with cell PCI list to the MME, so that described in the PCI list is transmitted to by the MME
Micro-base station.
The physical area PCI of above-mentioned micro-base station determines method, wherein the macro base station, will be with institute by the MME
State the step of corresponding PCI list of cell is sent to the micro-base station further includes later：Receive the cell of the MME forwarding
New PCI, and the new PCI of the cell is added in the PCI list corresponding with the cell, the cell
New PCI is that the micro-base station is sent to the MME's.
The present invention also provides a kind of physical area PCI determining devices of micro-base station, including：First determining module is used
In the former PCI for the cell for determining micro-base station, the former PCI of the cell is not identical as the PCI of the adjacent area of the cell；First sends mould
Block, for by mobile management entity MME, the neighboring cell list acquisition request for carrying the former PCI of the cell to be sent to institute
State all other base station around micro-base station including macro base station；First receiving module, for receiving the macro base by MME
It stands the PCI list sent, includes in the PCI list：It is removed in the signal cover of macrocell corresponding with the micro-base station
The PCI of other all cells except the cell；Detection module, for detect in the PCI list with the presence or absence of with it is described
Otherwise the identical PCI of former PCI of cell, is kept if so, reselecting PCI of the new PCI as the cell of the micro-base station
The former PCI of the cell is constant.
The physical area PCI determining device of above-mentioned micro-base station, wherein first determining module includes：Obtain son
Module, for obtaining the PCI of periphery adjacent area by scanning mode；First determines submodule, for selection one not by the periphery
The PCI that adjacent area occupies is determined as the former PCI of the cell of micro-base station.
The physical area PCI determining device of above-mentioned micro-base station, wherein first sending module be further used for
The MME sends the neighboring cell list acquisition request, so that the neighboring cell list acquisition request is transmitted to target by the MME
Adjacent base station, the target adjacent base station are all other base station around the micro-base station including macro base station.
The physical area PCI determining device of above-mentioned micro-base station, wherein first receiving module is further used for connecing
The PCI list corresponding with the cell of the MME forwarding is received, the PCI list is that the macro base station is arranged according to the adjacent area
Table acquisition request feedback.
The physical area PCI determining device of above-mentioned micro-base station, wherein further include：Second sending module is used for institute
The new PCI for stating cell is sent to the MME, so that the new PCI of the cell is sent to the macro base by the MME
It stands, and the new PCI of the cell is added in the PCI list corresponding with the cell by the macro base station.
The physical area PCI determining device of above-mentioned micro-base station, wherein when micro-base station detects in the PCI list
When in the presence of PCI identical with the former PCI of cell, the detection module includes：Judging submodule is arranged for judging except the PCI
Outside PCI in table, if there are unappropriated PCI；First choice submodule, for when there are unappropriated PCI,
It selects a unappropriated PCI to be determined as the new PCI of the cell of micro-base station, otherwise, selects an occupied least PCI of number
It is determined as the new PCI of the cell of micro-base station, the occupied number of the PCI is the number for occupying the cell of the PCI.
The present invention also provides a kind of micro-base station, the determining device including physical-layer cell PCI as described above.
The present invention also provides a kind of physical area PCI determining devices of micro-base station, including：Second receiving module is used
In by mobile management entity MME, the adjacent area of the former PCI for the cell for carrying the micro-base station that the micro-base station is sent is received
List acquisition request；Third sending module, for by the MME, will PCI list corresponding with the cell be sent to it is described
Micro-base station, so that the micro-base station is detected according to former PCI of the PCI list to the cell with the determination cell
PCI, include in the PCI list：In the signal cover of macrocell corresponding with the micro-base station except the cell it
The PCI of other outer all cells.
The physical area PCI determining device of above-mentioned micro-base station, wherein second receiving module is further used for connecing
The neighboring cell list acquisition request of the MME forwarding is received, the neighboring cell list acquisition request is that the micro-base station is sent to
The MME's.
The physical area PCI determining device of above-mentioned micro-base station, wherein the third sending module is further used for root
Corresponding with cell PCI list is sent to the MME according to the neighboring cell list acquisition request, so that the MME is by institute
It states list and is transmitted to the micro-base station.
The physical area PCI determining device of above-mentioned micro-base station, wherein further include：Third receiving module, for receiving
The new PCI of the cell of the MME forwarding, and the new PCI of the cell is added to institute corresponding with the cell
It states in PCI list, the new PCI of the cell is that the micro-base station is sent to the MME's.
The present invention also provides a kind of macro base station, the determining device including physical-layer cell PCI as described above.
Above-mentioned technical proposal of the invention has the beneficial effect that：
The present invention provides a kind of physical area PCI of micro-base station to determine method, apparatus, micro-base station and macro base station, leads to
The communication that MME realizes micro-base station and macro base station is crossed, the PCI column of all cells under the macrocell corresponding to the micro-base station are got
Table, so as to according to the PCI list be a micro-base station cell determine PCI, avoid PCI confusion the problem of.
Detailed description of the invention
Fig. 1 is that the physical area PCI of the micro-base station provided by the invention in micro-base station side determines the process signal of method
Figure.
Fig. 2 is that the physical area PCI of the micro-base station provided by the invention in macro base station side determines the process signal of method
Figure.
Fig. 3 is that the physical area PCI for the micro-base station that the embodiment of the present invention 1 provides determines the flow diagram of method.
Fig. 4 is that the physical area PCI for the micro-base station that the embodiment of the present invention 2 provides determines the flow diagram of method.
Fig. 5 is that the physical area PCI for the micro-base station that the embodiment of the present invention 3 provides determines the flow diagram of method.
Specific embodiment
To keep the technical problem to be solved in the present invention, technical solution and advantage clearer, below in conjunction with attached drawing and tool
Body embodiment is described in detail.
The embodiment of the present invention is directed in the prior art, present in the network environment being made of macro base station and micro-base station
The problem of PCI confusion, the physical area PCI for providing a kind of micro-base station determine method, apparatus, micro-base station and macro base station, lead to
The communication that MME realizes micro-base station and macro base station is crossed, the PCI column of all cells under the macrocell corresponding to the micro-base station are got
Table, so as to according to the PCI list be a micro-base station cell determine PCI, avoid PCI confusion the problem of.
Micro-base station can determine a PCI when establishing a cell for the cell, and micro-base station has the function of scanning periphery adjacent area
Can, therefore the PCI that can be directly obtained the adjacent area of the cell by scanning periphery adjacent area micro-base station is determined for the cell
When PCI, micro-base station can be avoided the PCI of the cell and the PCI of the adjacent area of the cell is identical, still, due to the signal of macrocell
Coverage area is usually larger, and the scanning range of micro-base station is limited, and micro-base station usually can not directly be known same with the micro-base station
Belong to the PCI of all cells in the signal cover of same macrocell, thus is possible to will appear the letter of same macrocell
The phenomenon identical there are the PCI of the cell of more than two micro-base stations, i.e. PCI confusion, above-mentioned in order to solve in number coverage area
Technical problem, the present invention provides a kind of physical area PCI of micro-base station to determine method, as shown in Figure 1, the method packet
It includes：
Step S10 determines the former PCI of the cell of micro-base station, and the PCI of the adjacent area of the former PCI and cell of the cell is not
It is identical；
Step S12, micro-base station are obtained the neighboring cell list for carrying the former PCI of the cell by mobile management entity MME
Request is taken to be sent to around the micro-base station all other base station including macro base station；
Step S14, the micro-base station are received the PCI list that the macro base station is sent by MME, wrapped in the PCI list
It includes：The PCI of other all cells in the signal cover of macrocell corresponding with the micro-base station in addition to the cell；
Step S16, the micro-base station detect in the PCI list with the presence or absence of identical with the former PCI of the cell
Otherwise PCI, keeps the former PCI of the cell not if so, reselecting PCI of the new PCI as the cell of the micro-base station
Become.
The physical area PCI of above-mentioned micro-base station determines in method that micro-base station is determined when establishing a cell for the cell
Former PCI, the micro-base station are communicated by MME with all other base station around the micro-base station including macro base station,
It include being belonged to the micro-base station in the signal cover of same macrocell in addition to the cell to get
The PCI list of other all cell PCI, and detected according to former PCI of the PCI list to the cell, avoid the PCI list
It is interior that there are the identical PCI of former PCI of the cell.
Correspondingly, the physical area PCI of above-mentioned micro-base station determines method in macro base station side, as shown in Fig. 2, can be with
It specifically includes：
Step S20, for the macro base station by mobile management entity MME, receive micro-base station transmission carries micro- base
The neighboring cell list acquisition request of the former PCI for the cell stood；
PCI list corresponding with the cell is sent to micro- base by the MME by step S22, the macro base station
It stands, so that the micro-base station is detected according to former PCI of the PCI list to the cell with the determination cell
PCI includes in the PCI list：In the signal cover of macrocell corresponding with the micro-base station in addition to the cell
Other all cells PCI.
It is surveyed in macro base station, macro base station can receive the neighboring cell list acquisition request of micro-base station transmission by MME, in response to
The neighboring cell list acquisition request, macro base station by MME by include macrocell corresponding with the micro-base station signal cover model
The PCI list of other all cell PCI in enclosing in addition to the cell is sent to the micro-base station, so that micro-base station energy
It is enough to be detected according to former PCI of the PCI list to cell, avoid the PCI list memory identical in the former PCI of the cell
PCI。
The physical area PCI of micro-base station provided by the invention is determined in method, can be led between micro-base station and macro base station
MME is crossed to be communicated, thus, so that micro-base station when determining PCI for a cell, can be got from macro base station include with
The micro-base station belongs to the PCI of other all cell PCI in the signal cover of same macrocell in addition to the cell
List, and the PCI determined for the cell is detected according to the PCI list, avoiding the PCI determined for the cell is by it
PCI that his cell occupies and the problem of cause PCI confusion.
In a specific embodiment of the invention, step S10 can specifically include：
Micro-base station obtains the PCI of periphery adjacent area by scanning mode；
Selection one is not determined as the former PCI of the cell of micro-base station by the PCI that the periphery adjacent area occupies.
Micro-base station is in the former PCI for determining cell, the PCI to periphery adjacent area available first, specifically, micro-base station exists
When starting, the PCI of periphery adjacent area is obtained by scanning the periphery adjacent area of the cell, then selects the PCI with the periphery adjacent area
Former PCI of the PCI being all different as the cell, it is adjacent so as to avoid the periphery of the former PCI and the cell that are determined for the cell
The PCI in area is identical and generates conflict.
In a specific embodiment of the invention, step S12 can be specially：The micro-base station sends institute to the MME
Neighboring cell list acquisition request is stated, so that the neighboring cell list acquisition request is transmitted to target adjacent base station, the mesh by the MME
Marking adjacent base station is all other base station around the micro-base station including macro base station.
Correspondingly, in macro base station side, step S20 can be specially：The macro base station receives the neighbour of the MME forwarding
Area's list acquisition request, the neighboring cell list acquisition request are that the micro-base station is sent to the MME's.
Usually, micro-base station can not directly be communicated with macro base station, still, MME can micro-base station with include it is macro
Information forwarding is carried out between adjacent base station including base station, i.e. micro-base station can first send a message to MME, then by MME
It is transmitted to purpose base station, therefore, micro-base station can send neighboring cell list acquisition request to MME, and MME receives neighboring cell list acquisition
After request, macro base station is forwarded it to, so that micro-base station can realize the communication with macro base station by MME.
Specifically, micro-base station configures transmission message by base station, base station configuration updating information or S1 establish request message to
The MME sends the neighboring cell list acquisition request.
Micro-base station can send a variety of message to MME when being communicated with MME, for example, can send base station to MME
Configuration transmission message, base station configuration updating information or S1 establish request message, and therefore, neighboring cell list can be obtained and be asked by micro-base station
It asks and is carried in any one of the above message, belonged in the signal cover of same macrocell with obtaining with the micro-base station
The PCI of all cells need to only modify to existing message without defining new message format to carry adjacent area column
Table acquisition request.
Correspondingly, the macro base station configures transmission message by MME or MME configuration update message receives in macro base station side
The neighboring cell list acquisition request of the MME forwarding.
MME can send a variety of message to base station when forwarding message to base station, match for example, can send MME to base station
Transmission message or MME configuration update message are set, therefore, neighboring cell list acquisition request can be carried on any one of the above by MME
It is transmitted to macro base station in message, without defining new message format, need to only be modified to existing message to carry
Neighboring cell list acquisition request.
In a specific embodiment of the invention, step S14 can be specially：The micro-base station receives the MME forwarding
PCI list corresponding with the cell, the PCI list is that the macro base station is fed back according to the neighboring cell list acquisition request
's.
Correspondingly, in macro base station side, step S22 can be specially：The macro base station is asked according to neighboring cell list acquisition
Ask to the MME and send corresponding with cell PCI list so that the MME PCI list is transmitted to it is described micro-
Base station.
Macro base station is after the neighboring cell list acquisition request for receiving MME forwarding, due to including micro-base station in the request
The former PCI of cell, in response to the request, macro base station will adjacent area list information corresponding with the micro-base station, that is, PCI list, send
After receiving the PCI list to MME, MME, micro-base station is forwarded it to, so that micro-base station realizes and macro base station by MME
Communication, get in the signal cover of macrocell corresponding with the micro-base station in addition to the cell other are all
The PCI of cell detects come the former PCI of the cell to micro-base station, avoids since micro-base station can not be with the signal of macrocell
All base stations in coverage area are communicated and the problem of bring PCI confusions.
In a specific embodiment of the invention, in step s 16, exist when micro-base station detects in the PCI list
When PCI identical with the former PCI of cell, the step of PCI for reselecting a new PCI as the cell of the micro-base station, can
To include：Judge in addition to the PCI in the PCI list, if there are unappropriated PCI；When there are unappropriated PCI
When, it selects a unappropriated PCI to be determined as the new PCI of the cell of micro-base station, otherwise, selects an occupied number least
PCI is determined as the new PCI of the cell of micro-base station, and the occupied number of the PCI is the number for occupying the cell of the PCI.
When micro-base station, which detects, there is PCI identical with the former PCI of cell in the PCI list, need for the cell
The new PCI of gravity treatment one, since the selectable value of PCI shares 504, when the number for the PCI for including in PCI list is less than 504, i.e.,
The number of other all cells in the signal cover of macrocell corresponding with the micro-base station in addition to the cell is less than 504
When a, illustrate that there is also unappropriated PCI other than in the PCI in the PCI list, it therefore, can be unoccupied from this
PCI in select a PCI as the new PCI of the cell of the micro-base station.
And when the number for the PCI for including in PCI list is greater than or equal to 504, i.e., it is corresponding with the micro-base station macro small
The number of other all cells in the signal cover in area in addition to the cell is greater than or equal to 504, it is possible to
Cause all 504 PCI selectable value occupied, i.e., other than the PCI for including in the PCI list, there is no unoccupied
PCI can then check the reusing degree of 504 PCI in this case, that is, compare each occupied number of PCI value,
In order to farthest avoid being conflicted by PCI, bring influences, can be minimum with a reusing degree, i.e., the occupied least PCI of number
The new PCI of cell as the micro-base station, it is minimum to ensure to occupy the number of cell of same PCI.
In a specific embodiment of the invention, can also include after step S16：The micro-base station is by the cell
New PCI is sent to the MME, so that the new PCI of the cell is sent to the macro base station by the MME, and by institute
It states macro base station the new PCI of the cell is added in the PCI list corresponding with the cell.
Correspondingly, can also include after step S22 in macro base station side：Receive the new of the cell of the MME forwarding
PCI, and the new PCI of the cell is added in the PCI list corresponding with the cell, the cell it is new
PCI is that the micro-base station is sent to the MME's.
After micro-base station is that cell has determined new PCI, need the new PCI of cell being sent to macro base station, macro base
After station receives the new PCI of the cell, the new PCI of the cell is stored into PCI list corresponding with the cell, so that
The PCI that all cells under its signal cover are preserved in macro base station is obtained, to there ought be micro-base station to determine for cell again
When PCI, the PCI of all cells can be directly got from macro base station to be detected.
Fig. 3 is that the physical area PCI for the micro-base station that the embodiment of the present invention 1 provides determines the flow diagram of method.Such as
Shown in figure, the method includes：
Step S300, micro-base station obtain the PCI of periphery adjacent area by Sniffer functionality scan periphery adjacent area；
Step S302, micro-base station select a former PCI with the different PCI of PCI of periphery adjacent area as newly-built community；
Neighboring cell list request is carried on base station configuration transmission message " eNB Configuration by step S304
Transfer " is sent to MME；
Neighboring cell list request is carried on MME configuration transmission message " MME Configuration by step S306, MME
Transfer ", the adjacent base station being transmitted to including macro base station；
Step S308, the adjacent base station for receiving MME forwarding message judge whether itself is macro base station；
Step S310, macro base station start timer；
Step S312, macro base station will adjacent area list information corresponding with micro-base station, i.e. PCI list, be carried on base station configuration
It transmits on message " eNB Configuration Transfer ", is sent to MME, includes and micro-base station pair in adjacent area list information
The PCI of all cells in addition to the newly-built community in the signal cover for the macrocell answered；
The adjacent area list information is carried on MME configuration transmission message " MME Configuration by step S314, MME
Transfer " is transmitted to micro-base station；
Step S316, micro-base station are judged as that the former PCI that newly-built community determines whether there is in the adjacent area list information, when
In the presence of, S318 is entered step, step S324 is otherwise carried out；
Step S318 judges whether there is unappropriated PCI, when it is present, enters step S320, otherwise enters step
S322；
Step S320 selects a unappropriated PCI as the new PCI of the newly-built community；
Step S322 judges whether the former PCI of the newly-built community is the minimum PCI of current reusing degree, when being, into step
Rapid S324, otherwise enters step S326；
Step S324 maintains the former PCI of the newly-built community constant；
Step S326 selects new PCI of the minimum PCI of current reusing degree as the newly-built community；
The new PCI of the newly-built community is carried on base station configuration transmission message " eNB by step S328, micro-base station
Configuration Transfer ", is sent to MME；
The new PCI of the newly-built community is carried on MME configuration transmission message " MME by step S330, MME
Configuration Transfer ", the adjacent base station being transmitted to including macro base station；
Step S332, when the MME configuration that macro base station receives the new PCI for carrying the newly-built community of MME forwarding passes
After defeated message or timer are out-of-date, the new PCI of the newly-built community is added in corresponding adjacent area list information by macro base station.
Fig. 4 is that the physical area PCI for the micro-base station that the embodiment of the present invention 2 provides determines the flow diagram of method.Such as
Shown in figure, in Fig. 3 the difference is that, micro-base station or macro base station are by sending base station configuration updating information " eNB to MME
Configuration Update " carries the new PCI of neighboring cell list request, adjacent area list information or newly-built community, accordingly
, MME is carried by sending MME configuration update message " MME Configuration Update " to micro-base station or macro base station
The new PCI of neighboring cell list request, adjacent area list information or newly-built community.
Meanwhile base station configuration updating information " the eNB Configuration of MME is sent to by base station for each
Update " is required to MME to one base station configuration updating confirmation " eNB Configuration Update of the base station feedback
Acknowledge"；MME configuration update message " the MME Configuration of base station is sent to by MME for each
Update " is required to the base station and feeds back a MME configuration update confirmation " MME Configuration Update to MME
Acknowledge”。
Fig. 5 is that the physical area PCI for the micro-base station that the embodiment of the present invention 3 provides determines the flow diagram of method.Such as
Shown in figure, in Fig. 3 the difference is that, micro-base station by MME send S1 establish request message " S1 Setup
Request " requests to carry neighboring cell list, correspondingly, MME establishes response message " S1 Setup by sending S1 to micro-base station
Response " carrys out adjacent area list information.
Below by taking base station configures transmission message and MME configuration transmission message as an example, illustrate how to carry out existing message
Modification is to carry corresponding content：
(1) carrying neighboring cell list request
It is sent to MME when micro-base station configures transmission message bearing neighboring cell list request by base station, MME is configured by MME
Transmission message bearing neighboring cell list request is when being transmitted to the adjacent base station of the micro-base station, in order to carry neighboring cell list request, needs pair
Base station configuration transmission message and MME configuration transmission message are modified accordingly, modified base station configuration transmission message and MME
The format of configuration transmission message is as shown in the following table 1 and table 2：
Table 1
Table 2
In order to realize the carrying demand to neighboring cell list request, as shown in table 2, to " SON Information
Request " can value be modified, i.e., in modified base station configuration transmission message and MME configuration transmission message
" SON Information Request " field is in addition to that can be " X2 TNL Configuration Info ", " Time
Synchronization Info " etc. can also be " NR Request ", when it is " NR Request ", show that the message is used
In request neighboring cell list.
(2) adjacent area list information is carried
It is sent to MME when macro base station configures transmission message bearing adjacent area list information by base station, MME is configured by MME
When transmission message bearing adjacent area list information is transmitted to micro-base station, in order to carry adjacent area list information, need to configure biography to base station
Defeated message and MME configuration transmission message are modified accordingly, and modified base station configuration transmission message and MME configuration transmission disappear
The format of breath is as shown in the following table 3, table 4 and table 5：
Table 3
Table 4
Table 5
In order to realize the carrying demand to adjacent area list information, as shown in table 4, to " SON Information Reply "
Field is modified, i.e., " the SON in modified base station configuration transmission message and MME configuration transmission message
" Neighbor Cell Info " field is increased in Information Reply " field, value is corresponding with micro-base station
Adjacent area list information, wherein may include in the signal cover of macrocell corresponding with micro-base station except the micro-base station
Newly-built community except other all cells information, may include the information such as PCI, ECGI, frequency point.
(3) the new PCI of cell is carried
When micro-base station is sent to MME by the new PCI that base station configures transmission message bearing cell, MME is configured by MME
When the new PCI of transmission message bearing cell is transmitted to the adjacent base station of the micro-base station, in order to carry the new PCI of cell, need
Transmission message is configured to base station and MME configuration transmission message is modified accordingly, the configuration of modified base station transmit message and
The format of MME configuration transmission message is as shown in the following table 6 and table 7：
Table 6
Table 7
In order to realize the carrying demand to the new PCI of cell, as shown in table 7, to " SON Information
Request " can value be modified, i.e., in modified base station configuration transmission message and MME configuration transmission message
" SON Information Request " field is in addition to that can be " X2 TNL Configuration Info ", " Time
Synchronization Info " etc. can also be " PCI confirm " when it is " PCI confirm ", to show the message
For notifying the new PCI of the cell of micro-base station to give opposite end base station.
The present invention also provides a kind of physical area PCI determining devices of micro-base station, including：First determining module is used
In the former PCI for the cell for determining micro-base station, the former PCI of the cell is not identical as the PCI of the adjacent area of the cell；First sends mould
Block, for by mobile management entity MME, the neighboring cell list acquisition request for carrying the former PCI of the cell to be sent to institute
State all other base station around micro-base station including macro base station；First receiving module, for receiving the macro base by MME
It stands the PCI list sent, includes in the PCI list：It is removed in the signal cover of macrocell corresponding with the micro-base station
The PCI of other all cells except the cell；Detection module, for detect in the PCI list with the presence or absence of with it is described
Otherwise the identical PCI of former PCI of cell, is kept if so, reselecting PCI of the new PCI as the cell of the micro-base station
The former PCI of the cell is constant.
The physical area PCI determining device of above-mentioned micro-base station, wherein first determining module includes：Obtain son
Module, for obtaining the PCI of periphery adjacent area by scanning mode；First determines submodule, for selection one not by the periphery
The PCI that adjacent area occupies is determined as the former PCI of the cell of micro-base station.
The physical area PCI determining device of above-mentioned micro-base station, wherein first sending module be further used for
The MME sends the neighboring cell list acquisition request, so that the neighboring cell list acquisition request is transmitted to target by the MME
Adjacent base station, the target adjacent base station are all other base station around the micro-base station including macro base station.
The physical area PCI determining device of above-mentioned micro-base station, wherein first receiving module is further used for connecing
The PCI list corresponding with the cell of the MME forwarding is received, the PCI list is that the macro base station is arranged according to the adjacent area
Table acquisition request feedback.
The physical area PCI determining device of above-mentioned micro-base station, wherein further include：Second sending module is used for institute
The new PCI for stating cell is sent to the MME, so that the new PCI of the cell is sent to the macro base by the MME
It stands, and the new PCI of the cell is added in the PCI list corresponding with the cell by the macro base station.
The physical area PCI determining device of above-mentioned micro-base station, wherein when micro-base station detects in the PCI list
When in the presence of PCI identical with the former PCI of cell, the detection module includes：Judging submodule is arranged for judging except the PCI
Outside PCI in table, if there are unappropriated PCI；First choice submodule, for when there are unappropriated PCI,
It selects a unappropriated PCI to be determined as the new PCI of the cell of micro-base station, otherwise, selects an occupied least PCI of number
It is determined as the new PCI of the cell of micro-base station, the occupied number of the PCI is the number for occupying the cell of the PCI.
The present invention also provides a kind of micro-base station, the determining device including physical-layer cell PCI as described above.
The present invention also provides a kind of physical area PCI determining devices of micro-base station, including：Second receiving module is used
In by mobile management entity MME, the adjacent area of the former PCI for the cell for carrying the micro-base station that the micro-base station is sent is received
List acquisition request；Third sending module, for by the MME, will PCI list corresponding with the cell be sent to it is described
Micro-base station, so that the micro-base station is detected according to former PCI of the PCI list to the cell with the determination cell
PCI, include in the PCI list：In the signal cover of macrocell corresponding with the micro-base station except the cell it
The PCI of other outer all cells.
The physical area PCI determining device of above-mentioned micro-base station, wherein second receiving module is further used for connecing
The neighboring cell list acquisition request of the MME forwarding is received, the neighboring cell list acquisition request is that the micro-base station is sent to
The MME's.
The physical area PCI determining device of above-mentioned micro-base station, wherein the third sending module is further used for root
Corresponding with cell PCI list is sent to the MME according to the neighboring cell list acquisition request, so that the MME is by institute
It states list and is transmitted to the micro-base station.
The physical area PCI determining device of above-mentioned micro-base station, wherein further include：Third receiving module, for receiving
The new PCI of the cell of the MME forwarding, and the new PCI of the cell is added to institute corresponding with the cell
It states in PCI list, the new PCI of the cell is that the micro-base station is sent to the MME's.
The present invention also provides a kind of macro base station, the determining device including physical-layer cell PCI as described above.
The above is a preferred embodiment of the present invention, it is noted that for those skilled in the art
For, without departing from the principles of the present invention, it can also make several improvements and retouch, these improvements and modifications
It should be regarded as protection scope of the present invention.
Claims (24)
1. a kind of physical area PCI of micro-base station determines method, which is characterized in that including：
Determine that the former PCI of the cell of micro-base station, the former PCI of the cell of the micro-base station be not identical as the PCI of the adjacent area of the cell；
Micro-base station is asked the neighboring cell list acquisition of the former PCI for the cell for carrying the micro-base station by mobile management entity MME
Ask all other base station being sent to around the micro-base station including macro base station；
The micro-base station receives the PCI list that the macro base station is sent by MME, includes in the PCI list：With micro- base
The PCI of other all cells in the signal cover of corresponding macrocell of standing in addition to the cell of the micro-base station；
The micro-base station is detected with the presence or absence of PCI identical with the former PCI of the cell of the micro-base station in the PCI list, if
It is otherwise the PCI for reselecting a new PCI as the cell of the micro-base station keeps the former PCI of the cell of the micro-base station
It is constant.
2. the method according to claim 1, wherein the step of former PCI of the cell of the determining micro-base station, wraps
It includes：
Micro-base station obtains the PCI of periphery adjacent area by scanning mode；
Selection one is not determined as the former PCI of the cell of micro-base station by the PCI that the periphery adjacent area occupies.
3. the method according to claim 1, wherein the micro-base station will be carried by mobile management entity MME
There is the neighboring cell list acquisition request of the former PCI of the cell of the micro-base station to be sent to around the micro-base station including macro base station
All other base station the step of include：
The micro-base station sends the neighboring cell list acquisition request to the MME, so that the MME obtains the neighboring cell list
Request is taken to be transmitted to target adjacent base station, the target adjacent base station is all other including macro base station around the micro-base station
Base station.
4. according to the method described in claim 3, it is characterized in that, the micro-base station configures transmission message, base station by base station
Configuration update message or S1 establish request message and send the neighboring cell list acquisition request to the MME.
5. being sent the method according to claim 1, wherein the micro-base station receives the macro base station by MME
PCI list the step of include：
The micro-base station receives the PCI list corresponding with the cell of the micro-base station of the MME forwarding, and the PCI list is
The macro base station is fed back according to the neighboring cell list acquisition request.
6. according to the method described in claim 5, it is characterized in that, whether there is in the micro-base station detection PCI list
Further include after the step of PCI identical with the former PCI of cell：
The new PCI of the cell of the micro-base station is sent to the MME by the micro-base station, so that the MME will be described micro-
The new PCI of the cell of base station is sent to the macro base station, and by the macro base station by the new PCI of the cell of the micro-base station
It is added in the PCI list corresponding with the cell of the micro-base station.
7. the method according to claim 1, wherein when micro-base station detect in the PCI list exist with it is small
When the identical PCI of the former PCI in area, the step of PCI for reselecting a new PCI as the cell of the micro-base station, includes：
Judge in addition to the PCI in the PCI list, if there are unappropriated PCI；
When there are unappropriated PCI, a unappropriated PCI is selected to be determined as the new PCI of the cell of micro-base station, it is no
Then, the one occupied least PCI of number of selection is determined as the new PCI of the cell of micro-base station, and the occupied number of the PCI is
Occupy the number of the cell of the PCI.
8. a kind of physical area PCI of micro-base station determines method, which is characterized in that the method includes：
Macro base station receives the former PCI's for the cell for carrying the micro-base station that micro-base station is sent by mobile management entity MME
Neighboring cell list acquisition request；
PCI list corresponding with the cell of the micro-base station is sent to the micro-base station by the MME by the macro base station,
So that the micro-base station detected according to former PCI of the PCI list to the cell of the micro-base station it is described micro- with determination
The new PCI of the cell of base station includes in the PCI list：The signal cover of macrocell corresponding with the micro-base station
The PCI of interior other all cells in addition to the cell of the micro-base station.
9. according to the method described in claim 8, it is characterized in that, the macro base station receives institute by mobile management entity MME
State micro-base station transmission the cell for carrying the micro-base station former PCI neighboring cell list acquisition request the step of include：
The macro base station receives the neighboring cell list acquisition request of the MME forwarding, and the neighboring cell list acquisition request is institute
It states micro-base station and is sent to the MME's.
10. according to the method described in claim 9, it is characterized in that, the macro base station configures transmission message or MME by MME
Configuration update message receives the neighboring cell list acquisition request of the MME forwarding.
11. according to the method described in claim 8, it is characterized in that, the macro base station by the MME, will be with micro- base
The step of corresponding PCI list of the cell stood is sent to the micro-base station include：
The macro base station sends according to the neighboring cell list acquisition request to the MME corresponding with the cell of the micro-base station
PCI list, so that the PCI list is transmitted to the micro-base station by the MME.
12. according to the method for claim 11, which is characterized in that the macro base station, will be with micro- base by the MME
Further include after the step of corresponding PCI list of the cell stood is sent to the micro-base station：
Receive the new PCI of the cell of the micro-base station of MME forwarding, and by the new PCI of the cell of the micro-base station
It is added in the PCI list corresponding with the cell of the micro-base station, the new PCI of the cell of the micro-base station is described micro-
Base station is sent to the MME's.
13. a kind of physical area PCI determining device of micro-base station, which is characterized in that including：
First determining module, the former PCI of the cell for determining micro-base station, the former PCI and the cell of the cell of the micro-base station
Adjacent area PCI it is not identical；
First sending module, for the neighbour of the former PCI of the cell of the micro-base station will to be carried by mobile management entity MME
Area's list acquisition request is sent to around the micro-base station all other base station including macro base station；
First receiving module includes in the PCI list for receiving the PCI list that the macro base station is sent by MME：With
Other all cells in the signal cover of the corresponding macrocell of the micro-base station in addition to the cell of the micro-base station
PCI；
Detection module whether there is PCI identical with the former PCI of the cell of the micro-base station for detecting in the PCI list,
If so, otherwise reselecting PCI of the new PCI as the cell of the micro-base station keeps the original of the cell of the micro-base station
PCI is constant.
14. device according to claim 13, which is characterized in that first determining module includes：
Acquisition submodule, for obtaining the PCI of periphery adjacent area by scanning mode；
First determines submodule, for selecting the original of a cell for not being determined as micro-base station by the PCI that the periphery adjacent area occupies
PCI。
15. device according to claim 13, which is characterized in that first sending module is further used for described
MME sends the neighboring cell list acquisition request, so that the neighboring cell list acquisition request is transmitted to target neighbour's base by the MME
It stands, the target adjacent base station is all other base station around the micro-base station including macro base station.
16. device according to claim 13, which is characterized in that first receiving module is further used for described in reception
The PCI list corresponding with the cell of the micro-base station of MME forwarding, the PCI list is the macro base station according to the adjacent area
List acquisition request feedback.
17. device according to claim 16, which is characterized in that further include：
Second sending module, for the new PCI of the cell of the micro-base station to be sent to the MME, so that the MME will
The new PCI of the cell of the micro-base station is sent to the macro base station, and by the macro base station by the cell of the micro-base station
New PCI is added in the PCI list corresponding with the cell of the micro-base station.
18. device according to claim 13, which is characterized in that when micro-base station detect in the PCI list exist with
When the identical PCI of the former PCI of cell, the detection module includes：
Judging submodule, for judging in addition to the PCI in the PCI list, if there are unappropriated PCI；
First choice submodule, for selecting a unappropriated PCI to be determined as micro- base when there are unappropriated PCI
Otherwise the new PCI for the cell stood selects an occupied least PCI of number to be determined as the new PCI of the cell of micro-base station,
The occupied number of the PCI is the number for occupying the cell of the PCI.
19. a kind of micro-base station, which is characterized in that really including the described in any item physical area PCI of such as claim 13-18
Determine device.
20. a kind of physical area PCI determining device of micro-base station, which is characterized in that described device includes：
Second receiving module, for by mobile management entity MME, receive the micro-base station transmission to carry the micro-base station
Cell former PCI neighboring cell list acquisition request；
Third sending module, for PCI list corresponding with the cell of the micro-base station being sent to described by the MME
Micro-base station, so that the micro-base station is detected according to former PCI of the PCI list to the cell of the micro-base station with determination
The new PCI of the cell of the micro-base station includes in the PCI list：The signal of macrocell corresponding with the micro-base station covers
The PCI of other all cells within the scope of lid in addition to the cell of the micro-base station.
21. device according to claim 20, which is characterized in that second receiving module is further used for described in reception
The neighboring cell list acquisition request of MME forwarding, the neighboring cell list acquisition request are that the micro-base station is sent to the MME
's.
22. device according to claim 20, which is characterized in that the third sending module is further used for according to
Neighboring cell list acquisition request sends PCI list corresponding with the cell of the micro-base station to the MME, so that the MME will
The PCI list is transmitted to the micro-base station.
23. device according to claim 22, which is characterized in that further include：
Third receiving module, the new PCI of the cell of the micro-base station for receiving MME forwarding, and by micro- base
The new PCI for the cell stood is added in the PCI list corresponding with the cell of the micro-base station, the cell of the micro-base station
New PCI be the micro-base station be sent to the MME's.
24. a kind of macro base station, which is characterized in that really including the described in any item physical area PCI of such as claim 20-23
Determine device.
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| CN111565398B (en) * | 2019-02-13 | 2022-01-14 | 华为技术有限公司 | Communication method, device, system and storage medium |
| CN111093211A (en) * | 2019-11-07 | 2020-05-01 | 中兴通讯股份有限公司 | Control signaling transmission method, device and storage medium |
| CN116056119B (en) * | 2023-03-30 | 2023-06-23 | 北京市大数据中心 | Method and device for detecting macro base station configuration information and terminal equipment |
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