CN103843427A - Synchronization method, base station, base station controller and system among districts - Google Patents
Synchronization method, base station, base station controller and system among districts Download PDFInfo
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- CN103843427A CN103843427A CN201380002687.6A CN201380002687A CN103843427A CN 103843427 A CN103843427 A CN 103843427A CN 201380002687 A CN201380002687 A CN 201380002687A CN 103843427 A CN103843427 A CN 103843427A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W56/00—Synchronisation arrangements
- H04W56/001—Synchronization between nodes
- H04W56/0015—Synchronization between nodes one node acting as a reference for the others
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Abstract
The invention discloses a synchronization method, a base station, a base station controller and a system. The base station controller comprises a receiving unit, for receiving measurement information from a plurality of districts, wherein the measurement information comprises an upper level and time advance by measuring the same conventional outburst impulse sequence received from the same mobile station in each district of the plurality of districts; a confirming unit, for confirming district assembly from the plurality of districts based on the upper level, wherein the upper level corresponding to the district of the plurality of districts is the same; an adjusting unit, for adjusting an empty clock of one district in the district assembly to make all the districts in the district assembly synchronize based on the time advance. According to the upper level and the time advance in the measurement information, the empty clock of the physical districts is adjusted without performing district switching by the mobile station. Consequently, synchronization with higher precision between the physical districts, and network indicators and user experience are not affected because of frequently district switching.
Description
Technical field
The present invention relates to the communications field, and more specifically, relate to a kind of synchronous method in minizone, base station, base station controller and system.
Background technology
Multi-site altogether cellular technology is to divide in logic the part physical area of different websites into same logic district.For example, be 9 communities that belong to 3 websites originally, be total to cellular technology by multi-site, be merged into Yi Ge community and provide service to travelling carriage.When travelling carriage moves in the overlay area of these 3 websites, do not need to carry out minizone switching.Multi-site altogether cellular technology can reduce the community switching times of networking bandwidth and subscriber equipment, thereby has promoted service quality and user's experience.
Realizing multi-site altogether in the process of cellular technology, for multiple physical areas of multiple websites being merged into a logic district, need eat dishes without rice or wine strict synchronous (it is synchronous that frame number, time slot are all wanted) of these multiple physical areas, otherwise the data that multiple physical areas send will phase mutual interference, affects user's communication service.Air interface synchronization technology is divided into hardware synchronization and software synchronization conventionally.Hardware synchronization need to increase GPS(Global Positioning System, global positioning system) clockwork, synchronization accuracy is higher, but cost is higher.Software synchronization does not need extra clockwork, but synchronization accuracy is lower.
Current eats dishes without rice or wine in soft simultaneous techniques, and network equipment sends switching within cell instruction to travelling carriage, requires travelling carriage to be switched to community B from community A; Then, community A and community B resolve the access request AB(Access Burst that travelling carriage reports, access burst pulse train simultaneously) frame, and record the time that receives separately AB frame, report BSC(Base Station Controller, base station controller); Finally, BSC calculates community A and community B and receives the time difference of AB frame, and notifying cell A adjusts according to the time difference clock of eating dishes without rice or wine.By continuous repetition said process, community A and community B realize air interface synchronization.
But, state in realization in the process of air interface synchronization, need travelling carriage to carry out community switching.If the clock adjustment of eating dishes without rice or wine of carrying out frequently, will carry out community switching by travelling carriage continually, will affect like this network index and user and experience.
Summary of the invention
The embodiment of the present invention provides a kind of synchronous method in minizone, base station, base station controller and system, can realize the cell synchronous of higher accuracy.
First aspect, the embodiment of the present invention provides a kind of base station controller, comprise: receiving element, for receiving the metrical information of multiple communities, metrical information comprise that same Normal burst that base station receives from same travelling carriage each community in multiple communities measures line level and Timing Advance; Determining unit for based on upper line level, is determined set of cells from multiple communities, and upper line level corresponding to set of cells Zhong community is identical; Adjustment unit, for according to Timing Advance, adjusts the clock of eating dishes without rice or wine of at least one community in set of cells, so that all cell synchronous in set of cells.
In conjunction with first aspect, in the first implementation of first aspect, adjustment unit specifically for, from set of cells, determine that Yi Ge community is as benchmark community, remaining community is non-benchmark community; Determine the Timing Advance deviation of non-benchmark community with respect to benchmark community; According to Timing Advance deviation, adjust the clock of eating dishes without rice or wine of non-benchmark community.
In conjunction with first aspect and above-mentioned implementation thereof, in the second implementation of first aspect, adjustment unit specifically for, based on Timing Advance, determine the target clock value of eating dishes without rice or wine; According to the target clock value of eating dishes without rice or wine, adjust the clock of eating dishes without rice or wine of at least one community in set of cells.
In conjunction with first aspect and above-mentioned implementation thereof, in the third implementation of first aspect, Normal burst is the signaling frame on speech frame or Fast Associated Control Channel FACCH.
Second aspect, the embodiment of the present invention provides a kind of base station, comprising: receiving element, the Normal burst sending for receiving mobile; Determining unit, for measuring upper line level and Timing Advance to Normal burst; Transmitting element, for sending metrical information to base station controller, metrical information comprises line level and Timing Advance.
In conjunction with second aspect, in the first implementation of second aspect, Normal burst is the signaling frame on speech frame or FACCH.
The third aspect, provides a kind of synchronous system in minizone that realizes, and comprises the base station controller of first aspect and/or the base station of second aspect.
Fourth aspect, provide a kind of minizone synchronous method, comprise: receive the metrical information of multiple communities, metrical information comprise that same Normal burst that base station receives from same travelling carriage each community in multiple communities measures line level and Timing Advance; Based on upper line level, from multiple communities, determine set of cells, upper line level corresponding to set of cells Zhong community is identical; According to Timing Advance, adjust the clock of eating dishes without rice or wine of at least one community in set of cells, so that all cell synchronous in set of cells.
In conjunction with fourth aspect, in the first implementation of fourth aspect, according to Timing Advance, adjust the clock of eating dishes without rice or wine of at least one community in set of cells, comprise: from set of cells, determine that Yi Ge community is as benchmark community, remaining community is non-benchmark community; Determine the Timing Advance deviation of non-benchmark community with respect to benchmark community; According to Timing Advance deviation, adjust the clock of eating dishes without rice or wine of non-benchmark community.
In conjunction with fourth aspect and above-mentioned implementation thereof, in the second implementation of fourth aspect, according to Timing Advance, adjust the clock of eating dishes without rice or wine of at least one community in set of cells, comprising: based on Timing Advance, determine the target clock value of eating dishes without rice or wine; According to the target clock value of eating dishes without rice or wine, adjust the clock of eating dishes without rice or wine of at least one community in set of cells.
In conjunction with fourth aspect and above-mentioned implementation thereof, in the third implementation of fourth aspect, Normal burst is the signaling frame on speech frame or FACCH.
The 5th aspect, provides a kind of minizone synchronous method, comprising: the Normal burst that receiving mobile sends; Normal burst is measured to upper line level and Timing Advance; Send metrical information to base station controller, metrical information comprises line level and Timing Advance.
In conjunction with the 5th aspect, in the first implementation aspect the 5th, Normal burst is the signaling frame on speech frame or FACCH.
Based on technique scheme, the synchronous method in the minizone of the embodiment of the present invention can, according to upper line level and the Timing Advance of Normal burst, be adjusted the clock of eating dishes without rice or wine of physical area, and carry out community switching without travelling carriage.Thereby realize the synchronous of higher accuracy between physical area, avoided that community switching has influence on network index and user experiences because frequently carrying out simultaneously.
Brief description of the drawings
In order to be illustrated more clearly in the technical scheme of the embodiment of the present invention, to the accompanying drawing of required use in the embodiment of the present invention be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the schematic diagram of the synchronous method in the minizone of the embodiment of the present invention, base station, the applicable communication system of base station controller;
Fig. 2 is the indicative flowchart of the synchronous method in the minizone of one embodiment of the invention;
Fig. 3 is the indicative flowchart of the synchronous method in the minizone of another embodiment of the present invention;
Fig. 4 is the schematic block diagram of the BSC of one embodiment of the invention;
Fig. 5 is the schematic block diagram of the eNB of one embodiment of the invention;
Fig. 6 is the schematic block diagram of the BSC of another embodiment of the present invention;
Fig. 7 is the schematic block diagram of the eNB of another embodiment of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is a part of embodiment of the present invention, instead of whole embodiment.Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art obtain under the prerequisite of not making creative work, should belong to the scope of protection of the invention.
Should understand, the technical scheme of the embodiment of the present invention can be applied to various communication systems, for example: global system for mobile telecommunications (Global System of Mobile communication, referred to as " GSM ") system, code division multiple access (Code Division Multiple Access, referred to as " CDMA ") system, Wideband Code Division Multiple Access (WCDMA) (Wideband Code Division Multiple Access, referred to as " WCDMA ") system, GPRS (General Packet Radio Service, referred to as " GPRS "), Long Term Evolution (Long Term Evolution, referred to as " LTE ") system, LTE Frequency Division Duplexing (FDD) (Frequency Division Duplex, referred to as " FDD ") system, LTE time division duplex (Time Division Duplex, referred to as " TDD "), universal mobile telecommunications system (Universal Mobile Telecommunication System, referred to as " UMTS "), the interconnected inserting of microwave in the whole world (Worldwide Interoperability for Microwave Access, referred to as " WiMAX ") communication system etc.
Will also be understood that, in embodiments of the present invention, travelling carriage (Mobile Station, referred to as " MS ") can be referred to as subscriber equipment (User Equipment, referred to as " UE "), terminal (Terminal), mobile terminal (Mobile Terminal) etc., this travelling carriage can be through wireless access network (Radio Access Network, referred to as " RAN ") communicate with one or more core net, for example, travelling carriage can be mobile phone (or being called " honeycomb " phone), there is the computer of mobile terminal etc., for example, travelling carriage can also be portable, pocket, hand-hold type, built-in computer or vehicle-mounted mobile device, they and wireless access network switched voice and/or data.
In embodiments of the present invention, base station can be base station (the Base Transceiver Station in GSM or CDMA, referred to as " BTS "), also can be the base station (NodeB in WCDMA, referred to as " NB "), can also be the evolved base station (Evolutional Node B, referred to as " ENB or e-NodeB ") in LTE, the present invention limit.Base station controller can be BSC, RNC(Radio Network Controller, radio network controller) or other communication system in have the device of controller function of base station.But for convenience of description, following embodiment will describe as an example of base station eNB, mobile station MS and base station controller BSC example.
Fig. 1 is the schematic diagram of the applicable communication system of the embodiment of the present invention.The communication system of Fig. 1 comprises base station eNB (101a, 101b, 101c), base station controller BSC 102 and mobile station MS 103.In this communication system, eNB(101a, 101b, 101c) be connected with BSC102 by Abis interface (104a, 104b, 104c) respectively, each eNB (for example controls three physical areas, community 1, community 2 and community 3), MS103 is by least one physical area of 106 accesses of eating dishes without rice or wine, but the number of cells that the quantity of the present invention to eNB in communication system or MS and each eNB control is not construed as limiting.In the example of Fig. 1, physical area 1 to physical area 9 belongs to same logic district.
Realizing in the process of the common community of multi-site, need each physical area (physical area 1 to physical area 9) in same logic district to eat dishes without rice or wine strictly synchronously, namely each physical area frame number and time slot all want synchronous.
If it is synchronous that the AB frame sending according to MS carries out minizone, need order MS to carry out community switching specially and send above-mentioned AB frame, this can affect user and experience.
In addition, in system, not necessarily have at any time the MS that is applicable to carrying out switching within cell, cause the time interval of minizone simultaneous operation may be larger, and the clock of eating dishes without rice or wine can drift about along with the time, caused the synchronous accuracy variation in minizone.
In the process of MS and base station communication, MS constantly sends NB(Normal Burst, Normal burst to base station) frame.In the embodiment of the present invention, upper line level and the Timing Advance of the NB frame that each community receives can be measured in base station, and base station controller is adjusted the clock of eating dishes without rice or wine of community according to upper line level and Timing Advance, synchronous to realize minizone.Like this, the embodiment of the present invention sends AB frame specially without order MS, can, in ensureing that user experiences, improve the accuracy of each physical area air interface synchronization.
Fig. 2 is the indicative flowchart of the synchronous method in the minizone of one embodiment of the invention.The method 200 of Fig. 2 can be carried out by BSC, for example, and the BSC102 shown in Fig. 1.
201, receive the metrical information of multiple communities, metrical information comprise that same Normal burst that base station receives from same travelling carriage each community in multiple communities measures line level and Timing Advance.
The burst sequence that Normal burst (Normal Burst) sends while being travelling carriage and base station proper communication.Can be for example speech frame or FACCH(Fast Associated Control Channel, Fast Associated Control Channel) on signaling frame etc., or other forms of general communication frame.The embodiment of the present invention is not restricted the concrete form of NB frame.
202, based on upper line level, from multiple communities, determine set of cells, upper line level corresponding to set of cells Zhong community is identical.
Upper line level corresponding to set of cells Zhong community is identical, like this, can think that the distance between this set of cells Zhong community and travelling carriage is identical, therefore can carry out synchronous adjustment to this set of cells Zhong community and process.
203, according to Timing Advance, adjust the clock of eating dishes without rice or wine of at least one community in set of cells, so that all cell synchronous in set of cells.
Based on technique scheme, the synchronous method in the minizone of the embodiment of the present invention can, according to upper line level and the Timing Advance of the Normal burst in metrical information, be adjusted the clock of eating dishes without rice or wine of physical area, and carry out community switching without travelling carriage.Thereby realize the synchronous of higher accuracy between physical area, avoided that community switching has influence on network index and user experiences because frequently carrying out simultaneously.
Especially, under the state in near-synchronous (frame number alignment), implement the method for the embodiment of the present invention in each physical area, can realize high-precision minizone synchronous.The method of the embodiment of the present invention is carried out in MS regular traffic process, and eNB and BSC measure and determine Timing Advance deviation, do not affect behavior and the business of MS, experiences thereby ensured can not affect user.In addition, owing to can constantly sending Normal burst in MS and eNB communication process, therefore can carry out to high-frequency the method for the embodiment of the present invention, for example carry out once every 480ms, thereby reduced the impact of the clock drift of eating dishes without rice or wine, each physical area can remain at the state of precise synchronization.
Should be understood that line level is identical refers to that upper line level corresponding to each community falls within the scope of tolerance, not requires the numerical value of up level completely equal.
Alternatively, as an embodiment, in step 203, according to Timing Advance, adjust at least one community in set of cells eat dishes without rice or wine when clock, can from set of cells, determine that Yi Ge community is as benchmark community, remaining community is non-benchmark community; Then, determine the Timing Advance deviation of non-benchmark community with respect to benchmark community; Finally, according to Timing Advance deviation, adjust the clock of eating dishes without rice or wine of non-benchmark community.
For example, can select any one community in set of cells as benchmark community, also can be according to the community of default condition select time lead maximum, minimum or the numerical value that mediates as benchmark community.Then, determine the Timing Advance deviation of non-benchmark community with respect to benchmark community, to adjust the clock of eating dishes without rice or wine of non-benchmark community, realize minizone synchronous.
Set of cells is designated as to (Cell
1, Cell
2..., Cell
n), the Timing Advance corresponding with it is denoted as (TA
1, TA
2..., TA
n).If community Cell
1as benchmark community, community Cell
2..., Cell
nfor non-benchmark community, so non-benchmark community Cell
2..., Cell
nwith respect to benchmark community Cell
1timing Advance deviation be respectively:
Δt
12=TA
1-TA
2，…，Δt
1n=TA
1-TA
n
Δ t
12..., Δ t
1nadjusting range when being base station controller the clock of eating dishes without rice or wine of respective cell being adjusted.
Alternatively, as another embodiment, in step 203, according to Timing Advance, adjust eating dishes without rice or wine when clock of at least one community in set of cells, can also be based on Timing Advance, determine the target clock value of eating dishes without rice or wine; Then,, according to the target clock value of eating dishes without rice or wine, adjust the clock of eating dishes without rice or wine of at least one community in set of cells.
For example, set of cells is designated as to (Cell
1, Cell
2..., Cell
n), the Timing Advance corresponding with it is denoted as (TA
1, TA
2..., TA
n).The target clock value of eating dishes without rice or wine is T=max{TA
1, TA
2..., TA
n; then calculate respectively the eat dishes without rice or wine deviation of clock value of the Timing Advance amount of each community and target, finally according to deviation to the clock adjustment of eating dishes without rice or wine of corresponding community, determine that the method for deviation can be carried out according to previously described method; for avoiding repetition, do not repeat them here.
Fig. 3 is the indicative flowchart of the synchronous method in the minizone of another embodiment of the present invention.The method 300 of Fig. 3 can be carried out by eNB, for example, and the eNB(101a shown in Fig. 1,101b, 101c).
301, the Normal burst that receiving mobile sends.
302, Normal burst is measured to upper line level and Timing Advance.
303, send metrical information to base station controller, metrical information comprises line level and Timing Advance.
Based on technique scheme, in embodiments of the present invention, base station can send metrical information to base station controller, so that base station controller is according to upper line level and the Timing Advance of the Normal burst in metrical information, adjust the clock of eating dishes without rice or wine of physical area, and carry out community switching without travelling carriage.Thereby realize the synchronous of higher accuracy between physical area, avoided that community switching has influence on network index and user experiences because frequently carrying out simultaneously.
Especially, under the state in near-synchronous (frame number alignment), implement the method for the embodiment of the present invention in each physical area, can realize high-precision minizone synchronous.The method of the embodiment of the present invention is carried out in MS regular traffic process, and eNB and BSC measure and determine Timing Advance deviation, do not affect behavior and the business of MS, experiences thereby ensured can not affect user.In addition, owing to can constantly sending Normal burst in MS and eNB communication process, therefore can carry out to high-frequency the method for the embodiment of the present invention, for example carry out once every 480ms, thereby reduced the impact of the clock drift of eating dishes without rice or wine, each physical area can remain at the state of precise synchronization.
Alternatively, as an embodiment, Normal burst is the signaling frame on speech frame or FACCH.
Fig. 4 is the schematic block diagram of the BSC of one embodiment of the invention.The BSC40 of Fig. 4 comprises receiving element 401, determining unit 402 and adjustment unit 403.
Receiving element 401, for receiving the metrical information of multiple communities, metrical information comprise that same Normal burst that base station receives from same travelling carriage each community in multiple communities measures line level and Timing Advance.
Determining unit 402 for based on upper line level, is determined set of cells from multiple communities, and upper line level corresponding to set of cells Zhong community is identical.
Adjustment unit 403, for according to Timing Advance, adjusts the clock of eating dishes without rice or wine of at least one community in set of cells, so that all cell synchronous in set of cells.
Based on technique scheme, the base station controller of the embodiment of the present invention can, according to upper line level and the Timing Advance of the Normal burst in metrical information, be adjusted the clock of eating dishes without rice or wine of physical area.Thereby realize the synchronous of higher accuracy between physical area, avoided that community switching has influence on network index and user experiences because frequently carrying out simultaneously.
Especially, in each physical area under the state in near-synchronous (frame number alignment), the base station controller of the embodiment of the present invention, can realize high-precision minizone synchronous.The base station controller of the embodiment of the present invention is determined Timing Advance deviation in MS regular traffic process, does not affect behavior and the business of MS, experiences thereby ensured can not affect user.In addition, owing to can constantly sending Normal burst in MS and eNB communication process, therefore base station controller can be carried out the method for describing above in high-frequency ground, for example carry out once every 480ms, thereby reduced the impact of the clock drift of eating dishes without rice or wine, each physical area can remain at the state of precise synchronization.
Should be understood that line level is identical refers to that upper line level corresponding to each community falls within the scope of tolerance, not requires the numerical value of up level completely equal.
Alternatively, as an embodiment, adjustment unit 403 specifically for, from set of cells, determine that Yi Ge community is as benchmark community, remaining community is non-benchmark community; Determine the Timing Advance deviation of non-benchmark community with respect to benchmark community; According to Timing Advance deviation, adjust the clock of eating dishes without rice or wine of non-benchmark community.
For example, adjustment unit 403 can select any one community in set of cells as benchmark community, also can be according to the community of default condition select time lead maximum, minimum or the numerical value that mediates as benchmark community.Then, determine the Timing Advance deviation of non-benchmark community with respect to benchmark community, to adjust the clock of eating dishes without rice or wine of non-benchmark community, realize minizone synchronous.
Set of cells is designated as to (Cell
1, Cell
2..., Cell
n), the Timing Advance corresponding with it is denoted as (TA
1, TA
2..., TA
n).If community Cell
1as benchmark community, community Cell
2..., Cell
nfor non-benchmark community, so non-benchmark community Cell
2..., Cell
nwith respect to benchmark community Cell
1timing Advance deviation be respectively:
Δt
12=TA
1-TA
2，…，Δt
1n=TA
1-TA
n
Δ t
12..., Δ t
1nadjusting range when being base station controller the clock of eating dishes without rice or wine of respective cell being adjusted.
Alternatively, as another embodiment, adjustment unit 403 specifically for, based on Timing Advance, determine the target clock value of eating dishes without rice or wine; According to the target clock value of eating dishes without rice or wine, adjust the clock of eating dishes without rice or wine of at least one community in set of cells.
For example, set of cells is designated as to (Cell
1, Cell
2..., Cell
n), the Timing Advance corresponding with it is denoted as (TA
1, TA
2..., TA
n).The target clock value of eating dishes without rice or wine is T=max{TA
1, TA
2..., TA
n; then calculate respectively the eat dishes without rice or wine deviation of clock value of the Timing Advance amount of each community and target, finally according to deviation to the clock adjustment of eating dishes without rice or wine of corresponding community, determine that the method for deviation can be carried out according to previously described method; for avoiding repetition, do not repeat them here.
Alternatively, as another embodiment, Normal burst is the signaling frame on speech frame or FACCH.
Fig. 5 is the schematic block diagram of the eNB of one embodiment of the invention.The eNB50 of Fig. 5 comprises receiving element 501, determining unit 502 and transmitting element 503.
Receiving element 501, the Normal burst sending for receiving mobile.
Determining unit 502, for measuring upper line level and Timing Advance to Normal burst.
Transmitting element 503, for sending metrical information to base station controller, metrical information comprises line level and Timing Advance.
Based on technique scheme, the base station of the embodiment of the present invention can send metrical information to base station controller, so that base station controller is according to upper line level and the Timing Advance of the Normal burst in metrical information, adjust the clock of eating dishes without rice or wine of physical area, and carry out community switching without travelling carriage.Thereby realize the synchronous of higher accuracy between physical area, avoided that community switching has influence on network index and user experiences because frequently carrying out simultaneously.
Especially, in each physical area under the state in near-synchronous (frame number alignment), the base station of the embodiment of the present invention can send metrical information to base station controller, so that base station controller is adjusted the clock of eating dishes without rice or wine of community, thereby it is synchronous to realize high-precision minizone.Line level and Timing Advance are measured in the base station of the embodiment of the present invention in MS regular traffic process, do not affect behavior and the business of MS, experience thereby ensured can not affect user.In addition, owing to can constantly sending Normal burst in MS and eNB communication process, therefore base station can be carried out the method for describing above in high-frequency ground, for example carry out once every 480ms, thereby reduced the impact of the clock drift of eating dishes without rice or wine, each physical area can remain at the state of precise synchronization.
Alternatively, as another embodiment, Normal burst is the signaling frame on speech frame or FACCH.
Alternatively, as another embodiment, realize the synchronous system in minizone and comprise base station controller and/or the base station described above.
Fig. 6 is the schematic block diagram of the BSC of another embodiment of the present invention.
The BSC60 of Fig. 6 can be used for realizing each step and method in said method embodiment.In the embodiment of Fig. 6, BSC60 comprises radiating circuit 602, receiving circuit 603, processing unit 604, memory 605 and antenna 601.Processing unit 604 is controlled the operation of BSC60, and can be used for processing signals.Processing unit 604 can also be called CPU(Central Processing Unit, CPU).Memory 605 can comprise read-only memory and random access memory, and provides instruction and data to processor 604.A part for memory 605 can also comprise non-volatile row random access memory (NVRAM).In concrete application, BSC60 can embed or itself can be exactly the Wireless Telecom Equipment of for example mobile phone and so on.Radiating circuit 602 and receiving circuit 603 can be coupled to antenna 601.Each assembly of BSC60 is coupled by bus system 609, and wherein bus system 609, except comprising data/address bus, also comprises power bus, control bus and status signal bus in addition.But for the purpose of clearly demonstrating, in the drawings various buses are all designated as to bus system 609.
Particularly, memory 605 can be stored and make processing unit 604 carry out the instruction of following operation:
Receive the metrical information of multiple communities, metrical information comprise that same Normal burst that base station receives from same travelling carriage each community in multiple communities measures line level and Timing Advance;
Based on upper line level, from multiple communities, determine set of cells, upper line level corresponding to set of cells Zhong community is identical;
According to Timing Advance, adjust the clock of eating dishes without rice or wine of at least one community in set of cells, so that all cell synchronous in set of cells.
Based on technique scheme, the synchronous method in the minizone of the embodiment of the present invention can, according to upper line level and the Timing Advance of the Normal burst in metrical information, be adjusted the clock of eating dishes without rice or wine of physical area, and carry out community switching without travelling carriage.Thereby realize the synchronous of higher accuracy between physical area, avoided that community switching has influence on network index and user experiences because frequently carrying out simultaneously.
Especially, in each physical area, under the state in near-synchronous (frame number alignment), BSC implements the method for the embodiment of the present invention, can realize high-precision minizone synchronous.The method of the embodiment of the present invention is carried out in MS regular traffic process, and eNB and BSC measure and determine Timing Advance deviation, do not affect behavior and the business of MS, experiences thereby ensured can not affect user.In addition, owing to can constantly sending Normal burst in MS and eNB communication process, therefore can carry out to high-frequency the method for the embodiment of the present invention, for example carry out once every 480ms, thereby reduced the impact of the clock drift of eating dishes without rice or wine, each physical area can remain at the state of precise synchronization.
Should be understood that line level is identical refers to that upper line level corresponding to each community falls within the scope of tolerance, not requires the numerical value of up level completely equal.
Alternatively, as an embodiment, memory 605 also can be stored and make processing unit 604 carry out the instruction of following operation:
According to Timing Advance, adjust at least one community in set of cells eat dishes without rice or wine when clock, from set of cells, determine that Yi Ge community is as benchmark community, remaining community is non-benchmark community; Then, determine the Timing Advance deviation of non-benchmark community with respect to benchmark community; Finally, according to Timing Advance deviation, adjust the clock of eating dishes without rice or wine of non-benchmark community.
Alternatively, as another embodiment, memory 605 also can be stored and make processing unit 604 carry out the instruction of following operation:
According to Timing Advance, adjust eating dishes without rice or wine when clock of at least one community in set of cells, based on Timing Advance, determine the target clock value of eating dishes without rice or wine; Then,, according to the target clock value of eating dishes without rice or wine, adjust the clock of eating dishes without rice or wine of at least one community in set of cells.
Alternatively, as another embodiment, memory 605 also can be stored and make processing unit 604 carry out the instruction of following operation:
Normal burst is the signaling frame on speech frame or FACCH.
Fig. 7 is the schematic block diagram of the eNB of another embodiment of the present invention.
The eNB70 of Fig. 7 can be used for realizing each step and method in said method embodiment.In the embodiment of Fig. 7, eNB70 comprises radiating circuit 702, receiving circuit 703, processing unit 704, memory 705 and antenna 701.Processing unit 704 is controlled the operation of eNB70, and can be used for processing signals.Processing unit 704 can also be called CPU(Central Processing Unit, CPU).Memory 705 can comprise read-only memory and random access memory, and provides instruction and data to processor 704.A part for memory 705 can also comprise non-volatile row random access memory (NVRAM).In concrete application, eNB70 can embed or itself can be exactly the Wireless Telecom Equipment of for example mobile phone and so on.Radiating circuit 702 and receiving circuit 703 can be coupled to antenna 701.Each assembly of eNB70 is coupled by bus system 709, and wherein bus system 709, except comprising data/address bus, also comprises power bus, control bus and status signal bus in addition.But for the purpose of clearly demonstrating, in the drawings various buses are all designated as to bus system 709.
Particularly, memory 705 can be stored and make processing unit 704 carry out the instruction of following operation:
The Normal burst that receiving mobile sends;
Normal burst is measured to upper line level and Timing Advance;
Send metrical information to base station controller, metrical information comprises line level and Timing Advance.
Based on technique scheme, in embodiments of the present invention, base station can send metrical information to base station controller, so that base station controller is according to upper line level and the Timing Advance of the Normal burst in metrical information, adjust the clock of eating dishes without rice or wine of physical area, and carry out community switching without travelling carriage.Thereby realize the synchronous of higher accuracy between physical area, avoided that community switching has influence on network index and user experiences because frequently carrying out simultaneously.
Especially, in each physical area, under the state in near-synchronous (frame number alignment), eNB implements the method for the embodiment of the present invention, can realize high-precision minizone synchronous.The method of the embodiment of the present invention is carried out in MS regular traffic process, and eNB and BSC measure and determine Timing Advance deviation, do not affect behavior and the business of MS, experiences thereby ensured can not affect user.In addition, owing to can constantly sending Normal burst in MS and eNB communication process, therefore can carry out to high-frequency the method for the embodiment of the present invention, for example carry out once every 480ms, thereby reduced the impact of the clock drift of eating dishes without rice or wine, each physical area can remain at the state of precise synchronization.
Alternatively, as an embodiment, memory 705 also can be stored and make processing unit 704 carry out the instruction of following operation:
Normal burst is the signaling frame on speech frame or FACCH.
Should understand, in various embodiment of the present invention, the size of the sequence number of above-mentioned each process does not also mean that the priority of execution sequence, and the execution sequence of each process should determine with its function and internal logic, and should not form any restriction to the implementation process of the embodiment of the present invention.
Should also be understood that in embodiments of the present invention, term "and/or" is only a kind of incidence relation of describing affiliated partner, and expression can exist three kinds of relations.For example, A and/or B, can represent: individualism A exists A and B, these three kinds of situations of individualism B simultaneously.In addition, character "/" herein, generally represents that forward-backward correlation is to liking a kind of relation of "or".
Those of ordinary skill in the art can recognize, unit and the algorithm steps of each example of describing in conjunction with embodiment disclosed herein, can realize with electronic hardware, computer software or the combination of the two, for the interchangeability of hardware and software is clearly described, composition and the step of each example described according to function in the above description in general manner.These functions are carried out with hardware or software mode actually, depend on application-specific and the design constraint of technical scheme.Professional and technical personnel can realize described function with distinct methods to each specifically should being used for, but this realization should not thought and exceeds scope of the present invention.
Those skilled in the art can be well understood to, and for convenience of description and succinctly, the specific works process of the system of foregoing description, device and unit, can, with reference to the corresponding process in preceding method embodiment, not repeat them here.
In the several embodiment that provide in the application, should be understood that disclosed system, apparatus and method can realize by another way.For example, device embodiment described above is only schematic, for example, the division of described unit, be only that a kind of logic function is divided, when actual realization, can have other dividing mode, for example multiple unit or assembly can in conjunction with or can be integrated into another system, or some features can ignore, or do not carry out.In addition, shown or discussed coupling each other or direct-coupling or communication connection can be indirect coupling or communication connections by some interfaces, device or unit, can be also electric, machinery or other form connect.
The described unit as separating component explanation can or can not be also physically to separate, and the parts that show as unit can be or can not be also physical locations, can be positioned at a place, or also can be distributed in multiple network element.Can select according to the actual needs some or all of unit wherein to realize the object of embodiment of the present invention scheme.
In addition, the each functional unit in each embodiment of the present invention can be integrated in a processing unit, can be also that the independent physics of unit exists, and can be also that two or more unit are integrated in a unit.Above-mentioned integrated unit both can adopt the form of hardware to realize, and also can adopt the form of SFU software functional unit to realize.
If described integrated unit is realized and during as production marketing independently or use, can be stored in a computer read/write memory medium using the form of SFU software functional unit.Based on such understanding, the part that technical scheme of the present invention contributes to prior art in essence in other words, or all or part of of this technical scheme can embody with the form of software product, this computer software product is stored in a storage medium, comprise that some instructions (can be personal computers in order to make a computer equipment, server, or the network equipment etc.) carry out all or part of step of method described in each embodiment of the present invention.And aforesaid storage medium comprises: various media that can be program code stored such as USB flash disk, portable hard drive, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), magnetic disc or CDs.
The above; it is only the specific embodiment of the present invention; but protection scope of the present invention is not limited to this; any be familiar with those skilled in the art the present invention disclose technical scope in; can expect easily amendment or the replacement of various equivalences, within these amendments or replacement all should be encompassed in protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection range of claim.
Claims (13)
1. a base station controller, is characterized in that, comprising:
Receiving element, for receiving the metrical information of multiple communities, described metrical information comprise that base station measures the same Normal burst that in described multiple communities, each community receives from same travelling carriage line level and Timing Advance;
Determining unit for based on described upper line level, is determined set of cells from described multiple communities, and upper line level corresponding to described set of cells Zhong community is identical;
Adjustment unit, for according to described Timing Advance, adjusts the clock of eating dishes without rice or wine of at least one community in described set of cells, so that all cell synchronous in described set of cells.
2. base station controller according to claim 1, is characterized in that, described adjustment unit is specifically for determining that from described set of cells Yi Ge community is as benchmark community, and remaining community is non-benchmark community; Determine the Timing Advance deviation of described non-benchmark community with respect to described benchmark community; According to described Timing Advance deviation, adjust the clock of eating dishes without rice or wine of described non-benchmark community.
3. base station controller according to claim 1, is characterized in that, described adjustment unit is specifically for based on described Timing Advance, determines the target clock value of eating dishes without rice or wine; According to the described target clock value of eating dishes without rice or wine, adjust the clock of eating dishes without rice or wine of at least one community in described set of cells.
4. according to the base station controller described in claims 1 to 3 any one, it is characterized in that, described Normal burst is the signaling frame on speech frame or Fast Associated Control Channel FACCH.
5. a base station, is characterized in that, comprising:
Receiving element, the Normal burst sending for receiving mobile;
Determining unit, for measuring upper line level and Timing Advance to described Normal burst;
Transmitting element, for sending metrical information to base station controller, described metrical information comprises described upper line level and described Timing Advance.
6. base station according to claim 5, is characterized in that, described Normal burst is the signaling frame on speech frame or Fast Associated Control Channel FACCH.
7. realize the synchronous system in minizone, it is characterized in that, comprising:
According to the base station controller described in claim 1 to 4 any one, and/or according to the base station described in claim 5 or 6.
8. the synchronous method in minizone, is characterized in that, comprising:
Receive the metrical information of multiple communities, described metrical information comprise that base station measures the same Normal burst that in described multiple communities, each community receives from same travelling carriage line level and Timing Advance;
Based on described upper line level, from described multiple communities, determine set of cells, upper line level corresponding to described set of cells Zhong community is identical;
According to described Timing Advance, adjust the clock of eating dishes without rice or wine of at least one community in described set of cells, so that all cell synchronous in described set of cells.
9. method according to claim 8, is characterized in that, described according to described Timing Advance, adjusts the clock of eating dishes without rice or wine of at least one community in described set of cells, comprising:
From described set of cells, determine that Yi Ge community is as benchmark community, remaining community is non-benchmark community;
Determine the Timing Advance deviation of described non-benchmark community with respect to described benchmark community;
According to described Timing Advance deviation, adjust the clock of eating dishes without rice or wine of described non-benchmark community.
10. method according to claim 8, is characterized in that, described according to described Timing Advance, adjusts the clock of eating dishes without rice or wine of at least one community in described set of cells, comprising:
Based on described Timing Advance, determine the target clock value of eating dishes without rice or wine;
According to the described target clock value of eating dishes without rice or wine, adjust the clock of eating dishes without rice or wine of at least one community in described set of cells.
Method in 11. according to Claim 8 to 10 described in any one, is characterized in that, described Normal burst is the signaling frame on speech frame or Fast Associated Control Channel FACCH.
12. 1 kinds of methods that minizone is synchronous, is characterized in that, comprising:
The Normal burst that receiving mobile sends;
Described Normal burst is measured to upper line level and Timing Advance;
Send metrical information to base station controller, described metrical information comprises described upper line level and described Timing Advance.
13. methods according to claim 12, is characterized in that, described Normal burst is the signaling frame on speech frame or Fast Associated Control Channel FACCH.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2013/087210 WO2015070429A1 (en) | 2013-11-15 | 2013-11-15 | Method for inter-cell synchronization, base station, base station controller and system |
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| CN103843427A true CN103843427A (en) | 2014-06-04 |
| CN103843427B CN103843427B (en) | 2017-10-17 |
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| WO2019051794A1 (en) * | 2017-09-15 | 2019-03-21 | 北京小米移动软件有限公司 | Cell measurement method and apparatus |
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| CN103843427B (en) | 2017-10-17 |
| WO2015070429A1 (en) | 2015-05-21 |
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