CN103874045B - Indicate and determine the method and apparatus of the home cell of cell - Google Patents

Indicate and determine the method and apparatus of the home cell of cell Download PDF

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CN103874045B
CN103874045B CN201210537739.7A CN201210537739A CN103874045B CN 103874045 B CN103874045 B CN 103874045B CN 201210537739 A CN201210537739 A CN 201210537739A CN 103874045 B CN103874045 B CN 103874045B
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cell
indication signal
macrocell
mrow
belonged
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CN103874045A (en
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徐婧
潘学明
沈祖康
高秋彬
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China Academy of Telecommunications Technology CATT
Datang Mobile Communications Equipment Co Ltd
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China Academy of Telecommunications Technology CATT
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Abstract

The embodiment of the invention discloses a kind of method and apparatus for the home cell for indicating and determining cell, it is related to wireless communication field, for the home cell for solving the problems, such as how to indicate cell.In the present invention, the cell ID for the macrocell that home base stations are belonged to according to the cell ID and the cell of cell, generate the home cell indication signal of the cell, and the home cell indication signal of generation is sent to terminal, the home cell indication signal for the cell that terminal detection home base stations are sent, home cell indication signal according to detecting determines the macrocell that cell is belonged to, it is seen then that this programme solves the problems, such as the home cell for how indicating cell.

Description

Indicate and determine the method and apparatus of the home cell of cell
Technical field
The present invention relates to wireless communication field, more particularly to a kind of method of home cell for indicating and determining cell and Equipment.
Background technology
With the increase of evolution and the data service of technology, cell(small cell)Concept propose and by height Concern.Small cell generally have less coverage and relatively low transmission power, by the way that small cell are deployed in Apart from user's closer proximity, such as indoor and hot spot region, the data rate of user can be lifted.
According to current research, small cell type is broadly divided into two kinds, the small cell of dependent work and The small cell of autonomous working, respectively as illustrated in figs. 1A and ib.
The small cell of autonomous working have the complete function of a cell in existing system, support terminal in small Accessed in cell and resident, terminal is moved in small cell coverages from macro base station to be needed by handoff procedure.It is non-only The small cell of vertical work do not possess complete cell function in existing system, do not support the access of terminal and are resident.For example, Be moved to dependent work small cell coverages in terminal, not through existing handoff procedure, but by its Chain of command connection (system broadcasts, RRC signaling etc.) still remain at macro base station, only data surface connection (up-downgoing business datum, Dispatch etc.) switch to small cell, i.e. carrying separation.Therefore, for dependent work small cell, it is necessary to have The macrocell of determination(Macro cell)It is managed and configured.Simplify in view of actual deployment scene and equipment, generally Small cell are managed by the Macro cell uniquely determined, and the ownership that the Macro cell are alternatively referred to as small cell is small Area.Therefore, when carrying out small cell selections, it is necessary to ensure that the resident Macro cell of terminal are returning for the small cell Belong to cell, or can at least be established with the small cell and be connected/management.Therefore, terminal is reported measuring, or grand base , it is necessary to know small cell home cell information when station switches over decision-making.
On the other hand, generally, the small cell of dependent work cell ID(ID)By its ownership Macro cell are distributed unitedly and management, i.e. Macro cell can pass through any small of its administration of cell ID unique identifications cell.But different Macro cell are independently to be its small cell distribution cells ID.Therefore, under different Macro cell Small cell are likely to configure same cell ID.Especially in smallcell dense deployments, different Macro cell it Interior reuse identical cell ID possibility is bigger.Therefore, small cell cell ID needs to strengthen, and will solution never The collision problem brought with Macro cell separate configurations smallcell cell ID.
Include home base stations(Local eNB)And macro base station(Macro eNB)Heterogeneous network deployment scenario such as Fig. 2 institutes Show.Wherein Macro eNB provide grand covering, and Local eNB provide focus covering in grand coverage.
For the network architecture shown in Fig. 2, if according to current mechanism, terminal(User Equipment, UE)In Macro When being moved in cell coverages, the handover operation between Macro cell and Local cell may be constantly performed.In order to keep away Exempting from frequent switching causes data-transmission interruptions, and a kind of mode is exactly to allow UE to polymerize Local eNB and Macro eNB simultaneously Resource, but wireless heterogeneous networks(RRC)Connection is maintained under Macro eNB, and the resource of Local base stations is only used for data biography Defeated, i.e. chain of command user plane isolation technics, also referred to as carrying separates.
Sequence used in synchronizing signal has close relationship with physical-layer cell ID.LTE supports that 504 physical layers are small Area ID, these physical-layer cells ID are divided into 168 groups, referred to as physical-layer cell ID groups, and each group includes 3 physical-layer cells ID.So, a physical-layer cell ID can is by representing the numerals of physical-layer cell ID groups(Scope is 0~167), and Represent the numeral of the physical-layer cell ID in the ID groups of the physical-layer cell(Scope is 0 ~ 2)Carry out unique definition, i.e.,
To sum up, prior art can not solve the problems, such as the home cell for how indicating small cell.
The content of the invention
The embodiment of the present invention provides a kind of method and apparatus for the home cell for indicating and determining cell, for solving such as The problem of home cell of what instruction cell.
A kind of method for the home cell for indicating cell, this method include:
The cell ID for the macrocell that home base stations are belonged to according to the cell ID and the cell of cell, generation The home cell indication signal of the cell;
Home base stations send the home cell indication signal to terminal, to notify cell described in terminal to be belonged to grand Cell.
A kind of method for the home cell for determining cell, this method include:
The home cell indication signal for the cell that terminal detection home base stations are sent, the home cell of the cell refers to It is the cell ID generation for the macrocell that home base stations are belonged to according to the cell ID and the cell of cell to show signal Signal;
Terminal determines the macrocell that the cell is belonged to according to the home cell indication signal detected.
A kind of home base stations, the home base stations include:
Signal generation unit, the cell of the macrocell belonged to for the cell ID according to cell and the cell Mark, generate the home cell indication signal of the cell;
Signal transmitting unit, for sending the home cell indication signal to terminal, to notify cell described in terminal The macrocell belonged to.
A kind of terminal, the terminal include:
Detecting signal unit, the home cell indication signal of the cell for detecting home base stations transmission are described slight The home cell indication signal in area is the macrocell that home base stations are belonged to according to the cell ID and the cell of cell Cell ID generation signal;
Cell determining unit, for according to the home cell indication signal detected, determining that the cell is returned The macrocell of category.
In scheme provided in an embodiment of the present invention, home base stations are belonged to according to the cell ID and the cell of cell Macrocell cell ID, generate the home cell indication signal of the cell, and the home cell of generation is sent to terminal Indication signal, the home cell indication signal for the cell that terminal detection home base stations are sent, according to the home cell detected Indication signal determines the macrocell that cell is belonged to, it is seen then that home base stations are by sending home cell instruction letter in this programme Number, terminal is determined the macrocell that cell belonged to according to home cell indication signal, how to be indicated so as to solve The problem of home cell of cell.
Brief description of the drawings
Fig. 1 a are the cell schematic diagram of dependent work in the prior art;
Fig. 1 b are the cell schematic diagram to work independently in the prior art;
Fig. 2 is the heterogeneous network deployment scenario schematic diagram for including Local eNB and Macro eNB in the prior art;
Fig. 3 is FDD system synchronizing signal time-domain position schematic diagram in the prior art;
Fig. 4 is TDD system synchronizing signal time-domain position schematic diagram in the prior art;
Fig. 5 is method flow schematic diagram provided in an embodiment of the present invention;
Fig. 6 is another method schematic flow sheet provided in an embodiment of the present invention;
Fig. 7 is TDD system double synchronous signal structure time-domain position schematic diagram in the embodiment of the present invention;
Fig. 8 is architecture of base station schematic diagram provided in an embodiment of the present invention;
Fig. 9 is terminal structure schematic diagram provided in an embodiment of the present invention.
Embodiment
In LTE system, master sync signal(Primary Synchronized Signal, PSS)Use Zadoff-Chu sequences Row, the main synchronizing sequence that three length are 62 is shared, it is with three physical-layer cellsThere are mapping relations one by one, main synchronous letter Number sequence is only mapped on 62 subcarriers among 72 subcarriers, and 5 tone reservations at edge are protection interval.It is main same Signal sequence is walked per 5ms transmission primarieses, sequence used in former and later two fields is identical in a radio frames.
Master sync signal sequence is produced by the Zadoff-Chu sequence of frequency domain, and one shares 3 master sync signal sequences, specifically Equation below one:
Formula one:
The root sequence sequence number u of its Zadoff-Chu sequence used is as shown in table 1 below.
Table 1
Master sync signal sequence is carried out to resource unit according to frame structure(Resource Element, RE)Mapping.UE End is it is not assumed that descending master sync signal sequence uses identical antenna port with any one downlink reference signal, it is not assumed that any Used day when used antenna port transmits with other any master sync signal sequences when master sync signal sequence is transmitted Line end mouth is identical(It is not assumed that master sync signal sequence is transmitted on some or certain several antenna ports).
Sequence d (n) to RE mapping relations are as follows:
ak,l=d (n),N=0 ..., 61;
Wherein,For Physical Resource Block corresponding to the bandwidth of cell(PRB)Number,Carried for the son in each PRB Wave number mesh.
For frame structure 1, last OFDM of master sync signal sequence mapping to time slot 0 and time slot 10 (Orthogonal Frequency Division Multiplexing, OFDM)On symbol, as shown in Figure 3.
For frame structure 2, in the 3rd OFDM symbol of master sync signal sequence mapping to subframe 1 and 6, as shown in Figure 4.
The resource unit (k, l) that equation below two defines is reserved, is not used in the transmission of master sync signal sequence;
Formula two: N=-5, -4 ..., -1,62,63 ..., 66;
Wherein,For the number of the OFDM symbol in a PRB.
Auxiliary synchronous signals(Secondary Synchronization Signal, SSS)Sequence d (0) ..., d (61) is The sequence connected into after the intertexture for the binary sequence that two length are 31.This catenation sequence is indicated by master sync signal sequence Scramble sequence scrambled.
The two length are that the merging mode of 31 sequence in subframe 0 and subframe 5 is different, according to this different conjunction And mode, it is possible to determine the timing original position of radio frames.Specific auxiliary synchronous signals sequence is defined by equation below three:
Formula three:
The m of wherein 0≤n≤30.0And m1By physical-layer cell ID groupsDetermine, i.e.,:
m0=m ' mod 31
Specific output result is shown in form 6.11.2.1-1 in 211 specifications.
The two sequencesWithIt is m-sequenceTwo different cyclically shifted sequences, i.e.,:
Wherein0≤i≤30, it is defined as:
Primary condition is x (0)=0, x (1)=0, x (2)=0, x (3)=0, x (4)=1.
Two scramble sequence c0And c (n)1(n) determined by master sync signal sequence, be m-sequenceTwo different follow Ring shift sequence:
WhereinIt is in physical-layer cell ID groupsIn physical-layer cell ID.
0≤i≤30, it is defined as follows:
Primary condition is x (0)=0, x (1)=0, x (2)=0, x (3)=0, x (4)=1.
Scramble sequenceWithIt is m-sequenceCyclic shift, i.e.,:
Wherein m0And m1Form 6.11.2.1-1 has regulation in 211 specifications,0≤i≤30, it is defined as:
Primary condition is x (0)=0, x (1)=0, x (2)=0, x (3)=0, x (4)=1.
The running time-frequency resource position of auxiliary synchronous signals sequence depends on system frame structure type, for frame structure 1 and frame structure 2 In the subframe of preceding field, auxiliary synchronous signals sequence, auxiliary synchronous letter are sent using with master sync signal sequence identical antenna port The mapping relations of number sequence d (n) to resource are as follows:
ak,l=d (n),N=0 ..., 61;
The resource unit (k, l) that equation below four defines retains, and without the transmission of auxiliary synchronous signals sequence;
Formula four:N=-5, -4 ..., -1,62,63 ..., 66;
In order to solve the problems, such as how to indicate the home cell of cell, the embodiment of the present invention provides a kind of small cell of instruction Home cell method.
Referring to Fig. 5, the method for the home cell of instruction cell provided in an embodiment of the present invention, comprise the following steps:
Step 50:The cell mark for the macrocell that home base stations are belonged to according to the cell ID and the cell of cell Know, generate the home cell indication signal of the cell;
Step 51:Home base stations send the home cell indication signal of generation to terminal, to notify the terminal cell institute The macrocell of ownership.
As a kind of embodiment, the specific implementation of step 50 can be as follows:
The cell ID for the macrocell that home base stations are belonged to according to cell, or belonged to according to cell grand small The cell ID in area and the cell ID of the cell, generate the first main indication signal;
The cell ID for the macrocell that home base stations are belonged to according to cell, or belonged to according to cell grand small The cell ID in area and the cell ID of the cell, generate the first auxiliary indication signal;
The cell ID for the macrocell that home base stations are belonged to according to cell and the cell ID of the cell, generation the Two auxiliary indication signals;
Home base stations regard the first of generation the main indication signal, the first auxiliary indication signal and the second auxiliary indication signal as this The home cell indication signal of cell.
Specifically, the cell ID for the macrocell that above-mentioned home base stations are belonged to according to cell, generates the first main instruction Signal, specific implementation can be as follows:
Identified in group in the cell ID for the macrocell that home base stations are belonged to according to cellAccording to drilling for a long time Enter(LTE)Master sync signal generating mode specified in system protocol generates the first main indication signal, specifically may refer to formula One.
Specifically, the cell of the cell ID for the macrocell that above-mentioned home base stations are belonged to according to cell and the cell Mark, the first main indication signal is generated, specific implementation can be as follows:
Identified in group in the cell ID for the macrocell that home base stations are belonged to according to cellAccording to LTE system Master sync signal generating mode specified in agreement generates master sync signal, specifically may refer to formula one;
Home base stations are used with being identified in the group in the cell ID of the cellRelated scramble sequence, to generation Master sync signal scrambled, using the signal obtained after scrambling as the first main indication signal, such as, obtained after scrambling One main indication signal ak,l=d1(n)d2(n), wherein d1(n) it is according to master sync signal generation side specified in LTE system agreement The master sync signal of formula generation, d2(n) it is with being identified in the group in the cell ID of the cellRelated scramble sequence, d2(n) can be specifically formula one limit sequence;Or, use the cell ID with the cellRelated scramble sequence, The master sync signal of generation is scrambled, using the signal obtained after scrambling as the first main indication signal, such as, after scrambling The the first main indication signal a arrivedk,l=d1(n) b (n), wherein d1(n) it is according to master sync signal specified in LTE system agreement The master sync signal of generating mode generation, b (n) is the scramble sequence related to the cell ID of the cell, b (n) generation Mode is as follows:
B (n)=(x1(n+Nc)+x2(n+Nc))mod2;
x1(n+31)=(x1(n+3)+x1(n))mod2;
x2(n+31)=(x2(n+3)+x2(n+2)+x2(n+1)+x2(n))mod2;
Wherein, Nc=1600, the initialization mode of first m-sequence is:x1(0)=1, x1(n)=0, n=1,2 ..., 30;Second m-sequence initialization mode be:Wherein cinitFor the cell ID of cell.
Specifically, the cell ID for the macrocell that above-mentioned home base stations are belonged to according to cell, generates the first auxiliary instruction Signal, specific implementation can be as follows:
The cell ID for the macrocell that home base stations are belonged to according to cell, according to auxiliary specified in LTE system agreement Synchronizing signal generating mode generates the first auxiliary indication signal.
Specifically, the cell ID for the macrocell that above-mentioned home base stations are belonged to according to cell and the cell is small Area identifies, and generates the first auxiliary indication signal, specific implementation can be as follows:
Home base stations generate the first auxiliary indication signal according to auxiliary synchronous signals generating mode specified in LTE system agreement, Specifically it may refer to formula three;And
The s sequences used when generating the first auxiliary indication signal(S i.e. in formula three0Sequence and s1Sequence)With z sequences (Z i.e. in formula three1Sequence)Group mark in the cell ID of the macrocell belonged to the cellIt is related;Use C0Identified in group in the cell ID for the macrocell that sequence is belonged to the cellOr the cell ID of the cell In group in identifyCorrelation, the c used1Group internal standard in the cell ID for the macrocell that sequence is belonged to the cell KnowOr identified in the group in the cell ID of the cellIt is related.
Specifically, the cell of the cell ID for the macrocell that above-mentioned home base stations are belonged to according to cell and the cell Mark, the second auxiliary indication signal is generated, specific implementation can be as follows:
Home base stations generate the second auxiliary indication signal according to equation below
Wherein, s0、c0、c1、z1For the sequence specified in LTE system agreement used in auxiliary synchronous signals generating mode, Correlated series i.e. in formula three;And
s0Group mark in the cell ID of the macrocell belonged to the cellOr the cell ID of the cell In group markCorrelation, z1Group mark in the cell ID of the macrocell belonged to the cellOr this is slight Group mark in the cell ID in areaIt is related;c0Group internal standard in the cell ID of the macrocell belonged to the cell KnowOr identified in the group in the cell ID of the cellCorrelation, c1The cell of the macrocell belonged to the cell Identified in group in markOr identified in the group in the cell ID of the cellIt is related.
Preferably, home base stations can also be according to the cell ID for the macrocell that cell is belonged to, or according to slight The cell ID for the macrocell that area is belonged to and the cell ID of the cell, the second main indication signal is generated, and second is led Indication signal is sent to terminal as the home cell indication signal of the cell.Here, belonged to according to cell grand small The specific generation method that the cell ID in area generates the second main indication signal is:Home base stations are belonged to grand small according to cell Identified in group in the cell ID in areaAccording to master sync signal generating mode generation second specified in LTE system agreement Main indication signal, it specifically may refer to formula one.The cell ID of the macrocell belonged to according to cell and the cell Cell ID, the method for the second main indication signal of generation can be:The macrocell that home base stations are belonged to according to cell it is small Identified in group in area's markAccording to the main synchronous letter of master sync signal generating mode generation specified in LTE system agreement Number;Using being identified in the group in the cell ID with cellRelated scramble sequence, or use the cell mark with cell The scramble sequence of sensible pass, the master sync signal of generation is scrambled, using the signal obtained after scrambling as the second main instruction Signal.
As another embodiment, the specific implementation of step 50 can be as follows:
The cell ID for the macrocell that home base stations are belonged to according to cell, main indication signal and auxiliary instruction are generated respectively Signal;Specifically, identified in group in the cell ID for the macrocell that home base stations are belonged to according to cellAccording to LTE Master sync signal generating mode specified in system protocol generates main indication signal, specifically may refer to formula one;According to slight Group mark in the cell ID for the macrocell that area is belonged toGenerated according to auxiliary synchronous signals specified in LTE system agreement Mode generates auxiliary indication signal, specifically may refer to formula three;
Home base stations use the scrambler sequence related to the cell ID of the cell, respectively to the main indication signal of generation Scrambled with auxiliary indication signal;For example the main indication signal after scrambling is PSSMacrob(n), the auxiliary main indication signal after scrambling For SSSMacrob(n), wherein PSSMacroFor the main indication signal of generation, SSSMacroFor the auxiliary indication signal of generation, b (n) be with The related scrambler sequence of the cell ID of the cell.
For home base stations by the main indication signal after scrambling and the auxiliary indication signal after scrambling, the ownership as the cell is small Area's indication signal.
In step 51, when home base stations send the home cell indication signal of cell, using meeting in following condition The running time-frequency resource of at least one condition:
For time division duplex(TDD)System, it is located at subframe 0, subframe 1, subframe 5 and subframe 6 in time domain;
Positioned at multiple Physical Resource Block centered on direct current carrier on frequency domain(PRB);
It is located at the exclusive pilot signal of cell that 1 port is not present in subframe in time domain(CRS), channel condition information with reference to letter Number(CSI-RS)And demodulation reference mark(DMRS)OFDM(OFDM)Symbol.
Referring to Fig. 6, the embodiment of the present invention provides a kind of method for the home cell for determining cell, comprises the following steps:
Step 60:The home cell indication signal for the cell that terminal detection home base stations are sent, the ownership of the cell Cell indication signal is the cell ID for the macrocell that home base stations are belonged to according to the cell ID and the cell of cell The signal of generation;
Step 61:Terminal determines what the cell was belonged to according to the home cell indication signal of the cell detected Macrocell.
As a kind of embodiment, the home cell indication signal of cell includes the first main indication signal, the first auxiliary finger Show signal and the second auxiliary indication signal;Wherein:
First main indication signal is the cell ID for the macrocell that home base stations are belonged to according to cell, or according to small What the cell ID for the macrocell that cell is belonged to and the cell ID of the cell generated;
First auxiliary indication signal is the cell ID for the macrocell that home base stations are belonged to according to cell, or according to small What the cell ID for the macrocell that cell is belonged to and the cell ID of the cell generated;
Second auxiliary indication signal is the cell ID and the small cell for the macrocell that home base stations are belonged to according to cell Cell ID generation.
Further, the first main indication signal is the macrocell that home base stations are belonged to according to cell as follows Cell ID generation:
Identified in group in the cell ID for the macrocell that home base stations are belonged to according to cellAccording to LTE system Master sync signal generating mode specified in agreement generates the first main indication signal.
Further, the first main indication signal is the macrocell that home base stations are belonged to according to cell as follows Cell ID and the cell cell ID generation:
Identified in group in the cell ID for the macrocell that home base stations are belonged to according to cellAccording to LTE system Master sync signal generating mode specified in agreement generates master sync signal;
Home base stations are used with being identified in the group in the cell ID of the cellRelated scramble sequence, or make With the scramble sequence related to the cell ID of the cell, the master sync signal of generation is scrambled, will be obtained after scrambling Signal as the first main indication signal.
Further, the first auxiliary indication signal is the macrocell that home base stations are belonged to according to cell as follows Cell ID generation:
The cell ID for the macrocell that home base stations are belonged to according to cell, according to auxiliary specified in LTE system agreement Synchronizing signal generating mode generates the first auxiliary indication signal.
Further, the first auxiliary indication signal is the macrocell that home base stations are belonged to according to cell as follows Cell ID and the cell cell ID generate:
Home base stations generate the first auxiliary indication signal according to auxiliary synchronous signals generating mode specified in LTE system agreement; And
S sequences and z sequences and this used when generating the first auxiliary indication signal states the macrocell that cell is belonged to Group mark in cell IDIt is related;The c used0In the cell ID for the macrocell that sequence is belonged to the cell Identified in groupOr identified in the group in the cell ID of the cellCorrelation, the c used1Sequence is returned with the cell Identified in group in the cell ID of the macrocell of categoryOr identified in the group in the cell ID of the cellIt is related.
Further, the second auxiliary indication signal is the macrocell that home base stations are belonged to according to cell as follows Cell ID and the cell cell ID generate:
Home base stations generate the second auxiliary indication signal according to equation below
Wherein, s0、c0、c1、z1For the sequence specified in LTE system agreement used in auxiliary synchronous signals generating mode, And
s0Group mark in the cell ID of the macrocell belonged to the cellOr the cell ID of the cell In group markCorrelation, z1Group mark in the cell ID of the macrocell belonged to the cellOr this is slight Group mark in the cell ID in areaIt is related;c0Group internal standard in the cell ID of the macrocell belonged to the cell KnowOr identified in the group in the cell ID of the cellCorrelation, c1The cell of the macrocell belonged to the cell Identified in group in markOr identified in the group in the cell ID of the cellIt is related.
Further, the home cell indication signal of cell also includes the second main indication signal, the second main indication signal It is the cell ID for the macrocell that home base stations are belonged to according to the cell, or the macrocell belonged to according to cell Cell ID and the cell cell ID generate.
Home cell indication signal as another embodiment cell includes main indication signal and auxiliary indication signal; Wherein, main indication signal and auxiliary indication signal are that home base stations generate as follows;
The cell ID for the macrocell that home base stations are belonged to according to cell, main indication signal and auxiliary instruction are generated respectively Signal;
Home base stations use the scrambler sequence related to the cell ID of the cell, respectively to the main indication signal Scrambled with the auxiliary indication signal.
In step 60, terminal can detect small cell on the running time-frequency resource of at least one condition in meeting following condition Home cell indication signal:
For TDD system, it is located at subframe 0, subframe 1, subframe 5 and subframe 6 in time domain;
Positioned at multiple PRB centered on direct current carrier on frequency domain;
It is located at CRS, CSI-RS and DMRS that 1 port is not present in subframe OFDM symbol in time domain.
The specific detection method of home cell indication signal is illustrated below:
As a kind of embodiment, in step 60, the home cell instruction for the cell that terminal detection home base stations are sent Signal, specific implementation can be as follows:
The terminal detection master sync signal of cell, cell auxiliary synchronous signals and home cell indication signal in the One main indication signal, obtain the group mark in the cell ID of cellIdentified in group in the cell ID of cellIdentified with the group in the cell ID of macrocell
Terminal in the group in the cell ID of macrocell according to identifyingOr in the cell ID according to cell Identified in groupIdentified with the group in the cell ID of macrocellDetect the first auxiliary finger in the indication signal of home cell Show signal, the group mark in the cell ID for obtaining macrocell from the first auxiliary indication signal
Terminal identifies according to the group in the cell ID of the cell of acquisitionIn group in the cell ID of cell MarkGroup mark in the cell ID of macrocellIdentified with the group in the cell ID of macrocellDetection The second auxiliary indication signal in the indication signal of home cell.
Accordingly, terminal determines the home cell of cell according to the home cell indication signal detected in step 61, It is implemented as:Terminal according to the cell ID of the macrocell for determining to obtain to the testing result of the second auxiliary indication signal with it is slight The incidence relation of the cell ID in area, and determine that the home cell of cell is that have the grand small of incidence relation with the cell Area.Specifically:A, the cell ID of all macrocells of acquisition is divided into one group as first group, by all small cells of acquisition Cell ID be divided into one be used as second group;B, the group mark in the cell ID of a macrocell is selected from first groupIdentified with the group in the cell ID of macrocellIn the cell ID that a cell is selected from second group Group markIdentified with the group in the cell ID of cellUsing each mark selected to the second auxiliary instruction Signal is detected, if detecting successfully, it is determined that between the cell ID of the macrocell selected and the cell ID of cell With incidence relation, otherwise, detection next time, return to step B, until the macrocell mark in first group and second group are carried out In small cell ID selected get.
Specifically, master sync signal, the auxiliary synchronous signals of cell and the returning for cell of above-mentioned terminal detection cell Belong to the first main indication signal in cell indication signal, obtain the group mark in the cell ID of cellCell Identified in group in cell IDIdentified with the group in the cell ID of macrocellIt is implemented as follows:
Terminal detects master sync signal according to master sync signal detection mode specified in LTE system agreement, from detecting Master sync signal in obtain unknown cell cell ID in group in identify
Terminal is assisted according to the resource location relation of master sync signal set in advance and auxiliary synchronous signals according to LTE system Auxiliary synchronous signals detection mode specified in view detects auxiliary synchronous signals;
If terminal detects auxiliary synchronous signals, it is determined that the master sync signal detected for cell master sync signal, The auxiliary synchronous signals detected are the auxiliary synchronous signals of cell, and the cell ID of cell is obtained from the auxiliary synchronous signals In group markIt will be identified in group in the cell ID of the unknown cellIt is defined as the cell ID of cell In group in identifyAccording to synchronizing signal set in advance and the resource location relation of home cell indication signal, detection is returned Belong to the first main indication signal in cell indication signal, in the cell ID for obtaining macrocell from the first main indication signal Identified in group
If terminal is not detected by auxiliary synchronous signals, it is determined that the master sync signal detected is the first main indication signal, really Identified in group in the cell ID of the fixed unknown cellTo be identified in the group in the cell ID of macrocellAnd root According to the resource location relation of synchronizing signal set in advance and home cell indication signal, detect cell master sync signal and Auxiliary synchronous signals, in the group in the cell ID for obtaining cell from the master sync signal and auxiliary synchronous signals of cell respectively MarkWith a group mark
Preferably, terminal, in the first main indication signal in detecting home cell indication signal, also detection detection belongs to The second main indication signal in cell indication signal, the group in the cell ID for obtaining macrocell from the second main indication signal Interior mark
As another embodiment, the home cell instruction for the cell that terminal detection home base stations are sent in step 60 Signal, specific implementation can be as follows:
Terminal detects the master sync signal of cell and auxiliary synchronization according to synchronization signal detection mode specified in LTE system Signal, obtain the cell ID of cell;
Terminal according to the resource location relation of synchronizing signal set in advance and home cell indication signal, using with it is slight Main indication signal and auxiliary indication signal in the related scrambler sequence detection home cell indication signal of the cell ID in area, are obtained grand Identified in group in the cell ID of cellWith the group mark in the cell ID of macrocell
Accordingly, in step 61, terminal determines the ownership of cell according to the home cell indication signal detected Cell, it is implemented as:Terminal determine the home cell of cell be detect to obtain using the cell ID of the cell it is grand Macrocell corresponding to the cell ID of cell.
With reference to specific embodiment, the present invention will be described:
Embodiment one:
Base station side:
Step 1:The cell ID for the macrocell that home base stations are belonged to according to the cell ID and cell of cell, Generate the home cell indication signal of cell;Specifically, the home cell indication signal of generation includes following two parts:
Part I signal includes the first main indication signalWith the first auxiliary indication signal
Generating mode can compared with the generation method of master sync signal in technology, and with cell institute In the cell ID of the macrocell of ownershipIt is related;Can also enter on the basis of existing master sync signal generation method One step scrambles, for example, ak,l=d1(n)d2(n), d1(n)d2(n) in the cell ID of the macrocell belonged to respectively with cell 'sIn the cell ID of cellIt is related.Or ak,l=d1(n) b (n), d1(n) b (n) respectively with small cell In the cell ID of the macrocell belonged toThe cell ID of cell is related.
Generating mode compared with technology, the relation between the generation of its sequence and cell ID is as shown in summer table 2:
Table 2
Explanation:Combination 1 and 2 in upper table 2 can further reduce the retrieval number of subsequent terminal, be easy to terminal quickly to look for To cell and the corresponding relation of macrocell.
It is preferred that Part I signal can be mapped in preceding field.
Part II signal includes the second auxiliary indication signal
'sGenerating mode is:
Wherein, s, c, z generating mode is compared with technology, wherein, the corresponding relation between sequence generation and cell ID is such as Shown in table 3 below:
Table 3
Recommend ground, Part II signal is mapped in rear field.
Part II signal can also include the second main indication signalWhereinGenerating mode co-occurrence Have a technology, and with the cell ID of the macrocell of cell ownership, or with the cell ID of the macrocell of cell ownership and The cell ID of cell is related.
Step 2:Home base stations send the home cell indication signal of generation to terminal, to notify that terminal cell is returned The macrocell of category;
The resource mapping method of the home cell indication signal of cell is as follows:PSSMacroAnd SSSMacroIt is mapped in one In the resource determined in radio frames, it is preferred that PSSMacroAnd SSSMacroIt is mapped in the resource for meeting following partly or entirely condition On:
For TDD system, using subframe 0,1,5 and 6.
Use resource near centered on direct current carrier.For example, 6 PRB. centered on direct current carrier
In the absence of CRS, CSI-RS and DMRS of 1 port OFDM symbol.For conventional CP, recommend OFDM symbol 1,2, 3,8 }, for extending CP, OFDM symbol { 1,2 } is recommended.
Example 1:For FDD system;
WithIndividual OFDM symbol and penultimate OFDM symbol last in time slot K are mapped in,(If there is)WithIt is mapped in individual OFDM symbol last and penultimate OFDM symbols in time slot K+n Number, K=1-9, n≤10.Recommend ground, n ≠ 10.As shown in Figure 7.
Example 2:For TDD system;
WithIt is mapped in second OFDM symbol of subframe 1 and the penultimate OFDM symbols of subframe 0 Number;(If there is)WithIt is mapped in second OFDM symbol of subframe 6 and the penultimate of subframe 5 OFDM symbol.
End side:
Step 1:The home cell indication signal for the cell that terminal detection home base stations are sent, returns according to what is detected Belong to cell indication signal, determine the macrocell that cell is belonged to;It is specific as follows:
Master sync signal is detected according to prior art and obtained
Terminal according toAuxiliary synchronous signals are detected with the auxiliary synchronous signals relative position of protocol conventions;
When terminal is capable of detecting when auxiliary synchronous signals according to prior art, terminal can determine front and rear field, CP length With cellThe cell ID of complete cell can be obtained.And according to the synchronizing signal and ownership of protocol conventions The relative position detection indication signal of cell indication signalIndication signal can detect or pass through according to prior art The cell ID of cell is gone after disturbing, then detected using prior art.By detecting indication signal, terminal can obtain macrocell Cell ID in
When terminal can not detect auxiliary synchronous signals according to prior art, the master sync signal that terminal thinks to have detected is Indication signalI.e. and home base stationThe indication signal of binding.Further according to the synchronizing signal of protocol conventions and The relative position of home cell indication signal, detect synchronizing signal.And then obtain before and after field, CP length and cell cell Mark.
In cell ID of the terminal according to macrocellOr in the cell ID of cellIt is small with macrocell In area's markTo indication signalAfter descrambling, in the cell ID for detecting macrocellIt is i.e. available The cell ID of complete macrocell.
Terminal detects indication signal according to the cell ID of obtained macrocell and the cell ID of cellAnd then the incidence relation of the cell ID of macrocell and the cell ID of cell is determined according to testing result.
Embodiment two:
Base station side:
Step 1:The cell ID for the macrocell that home base stations are belonged to according to the cell ID and cell of cell, Generate the home cell indication signal of cell;Specifically:
The cell ID for the macrocell that home base stations are belonged to according to cell generates main indication signal PSSMacroWith auxiliary finger Show signal SSSMacro, and the PSS using scrambler sequence b (n) to generationMacroAnd SSSMacroScrambled respectively, b (n) with it is slight The cell ID in area is related.
Step 2:Home base stations send the home cell indication signal of generation to terminal, to notify that terminal cell is returned The macrocell of category;
The resource impact of home cell indication signal is as follows:
PSSMacroAnd SSSMacroIt can be mapped in respectively in embodiment oneWithIn the resource of mapping;Or Person, PSSMacroAnd SSSMacroIt is mapped in respectively in embodiment oneWithIn the resource of mapping;Or PSSMacro It is mapped in embodiment oneWithIn the resource of mapping, SSSMacroIt is mapped in embodiment oneWithIn the resource of mapping.
End side:
Step 1:The home cell indication signal for the cell that terminal detection home base stations are sent;Returned according to what is detected Category cell indication signal determines the macrocell that cell is belonged to.Specifically:
Terminal detects synchronizing signal according to prior art and obtains the cell ID of cell;
Terminal determines home cell indication signal according to the relative position relation of synchronizing signal and home cell indication signal The resource location at place, scrambler sequence is further determined according to the cell ID of cell, disturbed on the resource location according to this Code sequence pair home cell indication signal is descrambled;
Terminal carries out sequence correlation to the sequence after descrambling successively, and then determines the cell for the macrocell that cell is belonged to Mark.
Referring to Fig. 8, the embodiment of the present invention provides a kind of home base stations, and the home base stations include:
Signal generation unit 80, the macrocell belonged to for the cell ID according to cell and the cell it is small Area identifies, and generates the home cell indication signal of the cell;
Signal transmitting unit 81, it is slight described in terminal to notify for sending the home cell indication signal to terminal The macrocell that area is belonged to.
Further, the signal generation unit 80 includes:
First generation unit 801, for the cell ID of the macrocell belonged to according to cell, or according to small cell The cell ID of the cell ID of the macrocell belonged to and the cell, generate the first main indication signal;
Second generation unit 802, for the cell ID of the macrocell belonged to according to cell, or according to small cell The cell ID of the cell ID of the macrocell belonged to and the cell, generate the first auxiliary indication signal;
3rd generation unit 803, for the cell ID of macrocell that is belonged to according to cell and the small cell Cell ID, generate the second auxiliary indication signal;
Determining unit 804, for the first of generation the main indication signal, the first auxiliary indication signal and the second auxiliary instruction to be believed Number, the home cell indication signal as the cell.
Further, the first signal generation unit 801 is used for:
Identified in group in the cell ID of the macrocell belonged to according to cellAccording to Long Term Evolution LTE system Master sync signal generating mode specified in agreement generates the first main indication signal.
Further, the first signal generation unit 801 is used for:
Identified in group in the cell ID of the macrocell belonged to according to cellAccording to being advised in LTE system agreement Fixed master sync signal generating mode generation master sync signal;
Using with being identified in the group in the cell ID of the cellRelated scramble sequence, or use with it is described The related scramble sequence of the cell ID of cell, is scrambled, the signal that will be obtained after scrambling to the master sync signal of generation As the first main indication signal.
Further, second generation unit 802 is used for:
The cell ID of the macrocell belonged to according to cell, according to auxiliary synchronous signals specified in LTE system agreement Generating mode generates the first auxiliary indication signal.
Further, second generation unit 802 is used for:
The first auxiliary indication signal is generated according to auxiliary synchronous signals generating mode specified in LTE system agreement;
The macrocell that the s sequences and z sequences used when generating the first auxiliary indication signal is belonged to the cell Group mark in cell IDIt is related;The c used0In the cell ID for the macrocell that sequence is belonged to the cell Group in identifyOr identified in the group in the cell ID of the cellCorrelation, the c used1Sequence with it is described slight Identified in group in the cell ID for the macrocell that area is belonged toOr identified in the group in the cell ID of the cellIt is related.
Further, the 3rd generation unit 803 is used for:
The second auxiliary indication signal is generated according to equation below
Wherein, s0、c0、c1、z1For the sequence specified in LTE system agreement used in auxiliary synchronous signals generating mode, And
s0Group mark in the cell ID of the macrocell belonged to the cellOr the cell of the cell Group mark in markCorrelation, z1Group mark in the cell ID of the macrocell belonged to the cellOr Group mark in the cell ID of the cellIt is related;c0The cell ID of the macrocell belonged to the cell In group in identifyOr identified in the group in the cell ID of the cellCorrelation, c1Belonged to the cell Macrocell cell ID in group in identifyOr identified in the group in the cell ID of the cellIt is related.
Further, the signal generation unit 80 also includes:
4th generation unit 805, for the cell ID of the macrocell belonged to according to the cell, or according to institute The cell ID for the macrocell that cell is belonged to and the cell ID of the cell are stated, generates the second main indication signal;
The determining unit 804 is additionally operable to:Letter is indicated using the second main indication signal as the home cell of the cell Number.
Further, the signal generation unit 80 includes:
5th generation unit 806, for the cell ID of the macrocell belonged to according to cell, main instruction is generated respectively Signal and auxiliary indication signal;
Scrambling unit 807, for using the scrambler sequence related to the cell ID of the cell, respectively to the master Indication signal and the auxiliary indication signal are scrambled;By the main indication signal after scrambling and the auxiliary instruction after scrambling Signal, the home cell indication signal as the cell.
Further, when the signal transmitting unit 81 sends the home cell indication signal of the cell, using full The running time-frequency resource of at least one condition in the following condition of foot:
For TDD system, it is located at subframe 0, subframe 1, subframe 5 and subframe 6 in time domain;
Positioned at multiple Physical Resource Block PRB centered on direct current carrier on frequency domain;
It is located at the exclusive pilot signal CRS of cell, the channel state information reference signals that 1 port is not present in subframe in time domain CSI-RS and demodulation reference character D MRS orthogonal frequency division multiplex OFDM symbol.
Referring to Fig. 9, the embodiment of the present invention provides a kind of terminal, and the terminal includes:
Detecting signal unit 90, the home cell indication signal of the cell for detecting home base stations transmission are described small It is grand small that the home cell indication signal of cell is that home base stations are belonged to according to the cell ID and the cell of cell The signal of the cell ID generation in area;
Cell determining unit 91, for according to the home cell indication signal detected, determining the cell institute The macrocell of ownership.
Further, the home cell indication signal that the detecting signal unit 90 detects include the first main indication signal, First auxiliary indication signal and the second auxiliary indication signal;
Wherein, the first main indication signal is the cell ID for the macrocell that home base stations are belonged to according to cell, or What the cell ID of the macrocell belonged to according to cell and the cell ID of the cell generated;
First auxiliary indication signal is the cell ID for the macrocell that home base stations are belonged to according to cell, or according to small What the cell ID for the macrocell that cell is belonged to and the cell ID of the cell generated;
Second auxiliary indication signal is the cell ID of the macrocell that home base stations are belonged to according to cell and described slight The cell ID generation in area.
Further, the first main indication signal that the detecting signal unit 90 detects be home base stations as follows The cell ID generation of the macrocell belonged to according to cell:
Identified in group in the cell ID for the macrocell that home base stations are belonged to according to cellAccording to drilling for a long time Enter master sync signal generating mode specified in LTE system agreement and generate the first main indication signal.
Further, the first main indication signal that the detecting signal unit 90 detects be home base stations as follows What the cell ID of the macrocell belonged to according to cell and the cell ID of the cell generated:
Identified in group in the cell ID for the macrocell that home base stations are belonged to according to cellAccording to LTE system Master sync signal generating mode specified in agreement generates master sync signal;
Home base stations are used with being identified in the group in the cell ID of the cellRelated scramble sequence, or make With the scramble sequence related to the cell ID of the cell, the master sync signal of generation is scrambled, will be obtained after scrambling The signal arrived is as the first main indication signal.
Further, the first auxiliary indication signal that the detecting signal unit 90 detects be home base stations as follows The cell ID generation of the macrocell belonged to according to cell:
The cell ID for the macrocell that home base stations are belonged to according to cellAccording to specified in LTE system agreement Auxiliary synchronous signals generating mode generates the first auxiliary indication signal.
Further, the first auxiliary indication signal that the detecting signal unit 90 detects be home base stations as follows What the cell ID of the macrocell belonged to according to cell and the cell ID of the cell generated:
Home base stations generate the first auxiliary indication signal according to auxiliary synchronous signals generating mode specified in LTE system agreement;
The macrocell that the s sequences and z sequences used when generating the first auxiliary indication signal is belonged to the cell Group mark in cell IDIt is related;The c used0In the cell ID for the macrocell that sequence is belonged to the cell Group in identifyOr identified in the group in the cell ID of the cellCorrelation, the c used1Sequence with it is described slight Identified in group in the cell ID for the macrocell that area is belonged toOr identified in the group in the cell ID of the cellIt is related.
Further, the second auxiliary indication signal that the detecting signal unit 90 detects be home base stations as follows What the cell ID of the macrocell belonged to according to cell and the cell ID of the cell generated:
Home base stations generate the second auxiliary indication signal according to equation below
Wherein, s0、c0、c1、z1For the sequence specified in LTE system agreement used in auxiliary synchronous signals generating mode, And
s0Group mark in the cell ID of the macrocell belonged to the cellOr the cell of the cell Group mark in markCorrelation, z1Group mark in the cell ID of the macrocell belonged to the cellOr Group mark in the cell ID of the cellIt is related;c0The cell ID of the macrocell belonged to the cell In group in identifyOr identified in the group in the cell ID of the cellCorrelation, c1Belonged to the cell Macrocell cell ID in group in identifyOr identified in the group in the cell ID of the cellIt is related.
Further, the home cell indication signal for the cell that the detecting signal unit 90 detects also includes the Two main indication signals, the second main indication signal are the cell IDs for the macrocell that home base stations are belonged to according to the cell, Or the macrocell belonged to according to the cell cell ID and the cell cell ID generation.
Further, the home cell indication signal for the cell that the detecting signal unit 90 detects includes main finger Show signal and auxiliary indication signal;Wherein, main indication signal and auxiliary indication signal are that home base stations generate as follows;
The cell ID for the macrocell that home base stations are belonged to according to cell, main indication signal and auxiliary instruction are generated respectively Signal;
Home base stations use the scrambler sequence related to the cell ID of the cell, respectively to the main indication signal Scrambled with the auxiliary indication signal.
Further, the detecting signal unit 90 is on the running time-frequency resource of at least one condition in meeting following condition Detect the home cell indication signal of cell:
For TDD system, it is located at subframe 0, subframe 1, subframe 5 and subframe 6 in time domain;
Positioned at multiple Physical Resource Block PRB centered on direct current carrier on frequency domain;
It is located at the exclusive pilot signal CRS of cell, the channel state information reference signals that 1 port is not present in subframe in time domain CSI-RS and demodulation reference character D MRS orthogonal frequency division multiplex OFDM symbol.
It should be noted that the sequence related to cell ID in the present invention, refers to what is generated according to the cell ID Sequence.
To sum up, beneficial effects of the present invention include:
In scheme provided in an embodiment of the present invention, home base stations are belonged to according to the cell ID and the cell of cell Macrocell cell ID, generate the home cell indication signal of the cell, and the home cell of generation is sent to terminal Indication signal, the home cell indication signal for the cell that terminal detection home base stations are sent, according to the home cell detected Indication signal determines the macrocell that cell is belonged to, it is seen then that home base stations are by sending home cell instruction letter in this programme Number, terminal is determined the macrocell that cell belonged to according to home cell indication signal, how to be indicated so as to solve The problem of home cell of cell, after the problem is resolved, same cells ID cell is used for different cells ID collision problems are also resolved, because the cell using same cells ID can be distinguished by home cell.
The present invention is with reference to method according to embodiments of the present invention, equipment(System)And the flow of computer program product Figure and/or block diagram describe.It should be understood that can be by every first-class in computer program instructions implementation process figure and/or block diagram Journey and/or the flow in square frame and flow chart and/or block diagram and/or the combination of square frame.These computer programs can be provided The processors of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing devices is instructed to produce A raw machine so that produced by the instruction of computer or the computing device of other programmable data processing devices for real The device for the function of being specified in present one flow of flow chart or one square frame of multiple flows and/or block diagram or multiple square frames.
These computer program instructions, which may be alternatively stored in, can guide computer or other programmable data processing devices with spy Determine in the computer-readable memory that mode works so that the instruction being stored in the computer-readable memory, which produces, to be included referring to Make the manufacture of device, the command device realize in one flow of flow chart or multiple flows and/or one square frame of block diagram or The function of being specified in multiple square frames.
These computer program instructions can be also loaded into computer or other programmable data processing devices so that counted Series of operation steps is performed on calculation machine or other programmable devices to produce computer implemented processing, so as in computer or The instruction performed on other programmable devices is provided for realizing in one flow of flow chart or multiple flows and/or block diagram one The step of function of being specified in individual square frame or multiple square frames.
Although preferred embodiments of the present invention have been described, but those skilled in the art once know basic creation Property concept, then can make other change and modification to these embodiments.So appended claims be intended to be construed to include it is excellent Select embodiment and fall into having altered and changing for the scope of the invention.
Obviously, those skilled in the art can carry out the essence of various changes and modification without departing from the present invention to the present invention God and scope.So, if these modifications and variations of the present invention belong to the scope of the claims in the present invention and its equivalent technologies Within, then the present invention is also intended to comprising including these changes and modification.

Claims (32)

  1. A kind of 1. method for the home cell for indicating cell, it is characterised in that this method includes:
    The cell ID for the macrocell that home base stations are belonged to according to cell, or the macrocell belonged to according to cell The cell ID of cell ID and the cell, generates the first main indication signal, and home base stations are belonged to according to cell The cell ID of macrocell, or the cell ID of the macrocell belonged to according to cell and the cell mark of the cell Know, generate the first auxiliary indication signal, the cell ID for the macrocell that home base stations are belonged to according to cell and the small cell Cell ID, generate the second auxiliary indication signal, home base stations by the first of generation the main indication signal, the first auxiliary indication signal and Second auxiliary indication signal, the home cell indication signal as the cell;
    Home base stations send the home cell indication signal to terminal, grand small with notify that cell described in terminal is belonged to Area;Or
    The cell ID for the macrocell that home base stations are belonged to according to cell, main indication signal and auxiliary instruction letter are generated respectively Number, home base stations use the scrambler sequence related to the cell ID of the cell, respectively to the main indication signal and institute State auxiliary indication signal to be scrambled, home base stations believe the auxiliary instruction after the main indication signal after scrambling and scrambling Number, the home cell indication signal as the cell;
    Home base stations send the home cell indication signal to terminal, grand small with notify that cell described in terminal is belonged to Area.
  2. 2. the method as described in claim 1, it is characterised in that the macrocell that the home base stations are belonged to according to cell Cell ID, the first main indication signal is generated, is specifically included:
    Identified in group in the cell ID for the macrocell that home base stations are belonged to according to cellAccording to Long Term Evolution LTE Master sync signal generating mode specified in system protocol generates the first main indication signal.
  3. 3. the method as described in claim 1, it is characterised in that the macrocell that the home base stations are belonged to according to cell The cell ID of cell ID and the cell, the first main indication signal is generated, is specifically included:
    Identified in group in the cell ID for the macrocell that home base stations are belonged to according to cellAccording to LTE system agreement Specified in master sync signal generating mode generation master sync signal;
    Home base stations are used with being identified in the group in the cell ID of the cellRelated scramble sequence, or use and institute The related scramble sequence of the cell ID of cell is stated, the master sync signal of generation is scrambled, the letter that will be obtained after scrambling Number the first main indication signal of conduct.
  4. 4. the method as described in claim 1, it is characterised in that the macrocell that the home base stations are belonged to according to cell Cell ID, the first auxiliary indication signal is generated, is specifically included:
    The cell ID for the macrocell that home base stations are belonged to according to cell, according to auxiliary synchronization specified in LTE system agreement Signal generation mode generates the first auxiliary indication signal.
  5. 5. the method as described in claim 1, it is characterised in that the macrocell that the home base stations are belonged to according to cell The cell ID of cell ID and the cell, the first auxiliary indication signal is generated, is specifically included:
    Home base stations generate the first auxiliary indication signal according to auxiliary synchronous signals generating mode specified in LTE system agreement;And
    The cell for the macrocell that the s sequences and z sequences used when generating the first auxiliary indication signal is belonged to the cell Group mark in markIt is related;The c used0Group in the cell ID for the macrocell that sequence is belonged to the cell Interior markOr identified in the group in the cell ID of the cellCorrelation, the c used1Sequence and the cell institute Identified in group in the cell ID of the macrocell of ownershipOr identified in the group in the cell ID of the cellPhase Close.
  6. 6. the method as described in claim 1, it is characterised in that the macrocell that the home base stations are belonged to according to cell The cell ID of cell ID and the cell, the second auxiliary indication signal is generated, is specifically included:
    Home base stations generate the second auxiliary indication signal according to equation below
    <mrow> <msubsup> <mi>SSS</mi> <mrow> <mi>M</mi> <mi>a</mi> <mi>c</mi> <mi>r</mi> <mi>o</mi> </mrow> <mrow> <mo>(</mo> <mn>2</mn> <mo>)</mo> </mrow> </msubsup> <mrow> <mo>(</mo> <mi>n</mi> <mo>)</mo> </mrow> <mo>=</mo> <msubsup> <mi>s</mi> <mn>0</mn> <mrow> <mo>(</mo> <msub> <mi>m</mi> <mn>0</mn> </msub> <mo>)</mo> </mrow> </msubsup> <mrow> <mo>(</mo> <mi>n</mi> <mo>)</mo> </mrow> <msubsup> <mi>s</mi> <mn>0</mn> <mrow> <mo>(</mo> <msub> <mi>m</mi> <mn>1</mn> </msub> <mo>)</mo> </mrow> </msubsup> <mrow> <mo>(</mo> <mi>n</mi> <mo>)</mo> </mrow> <msub> <mi>c</mi> <mn>0</mn> </msub> <mrow> <mo>(</mo> <mi>n</mi> <mo>)</mo> </mrow> <msub> <mi>c</mi> <mn>1</mn> </msub> <mrow> <mo>(</mo> <mi>n</mi> <mo>)</mo> </mrow> <msubsup> <mi>z</mi> <mn>1</mn> <mrow> <mo>(</mo> <msub> <mi>m</mi> <mn>0</mn> </msub> <mo>)</mo> </mrow> </msubsup> <mrow> <mo>(</mo> <mi>n</mi> <mo>)</mo> </mrow> <msubsup> <mi>z</mi> <mn>1</mn> <mrow> <mo>(</mo> <msub> <mi>m</mi> <mn>1</mn> </msub> <mo>)</mo> </mrow> </msubsup> <mrow> <mo>(</mo> <mi>n</mi> <mo>)</mo> </mrow> <mo>;</mo> </mrow>
    Wherein, s0c0c1z1For the sequence specified in LTE system agreement used in auxiliary synchronous signals generating mode, and,
    s0Group mark in the cell ID of the macrocell belonged to the cellOr the cell ID of the cell In group markCorrelation, z1Group mark in the cell ID of the macrocell belonged to the cellIt is or described small Group mark in the cell ID of cellIt is related;c0Group in the cell ID of the macrocell belonged to the cell Interior markOr identified in the group in the cell ID of the cellCorrelation, c1Belonged to the cell grand small Identified in group in the cell ID in areaOr identified in the group in the cell ID of the cellCorrelation, m0And m1 By physical-layer cell identifier groupDetermine.
  7. 7. the method as described in claim 1, it is characterised in that further comprise:
    The cell ID for the macrocell that home base stations are belonged to according to the cell, or belonged to according to the cell The cell ID of the cell ID of macrocell and the cell, the second main indication signal is generated, and by the second main indication signal Home cell indication signal as the cell.
  8. 8. the method as described in any in claim 1-7, it is characterised in that the ownership that home base stations send the cell is small During area's indication signal, the running time-frequency resource of at least one condition met in following condition is used:
    For TDD system, it is located at subframe 0, subframe 1, subframe 5 and subframe 6 in time domain;
    Positioned at multiple Physical Resource Block PRB centered on direct current carrier on frequency domain;
    It is located at the exclusive pilot signal CRS of cell, the channel state information reference signals CSI- that 1 port is not present in subframe in time domain RS and demodulation reference character D MRS orthogonal frequency division multiplex OFDM symbol.
  9. A kind of 9. method for the home cell for determining cell, it is characterised in that this method includes:
    The home cell indication signal for the cell that terminal detection home base stations are sent, the home cell instruction letter of the cell Number it is the signal that the cell ID for the macrocell that home base stations are belonged to according to the cell ID and the cell of cell generates, The home cell indication signal includes the first main indication signal, the first auxiliary indication signal and the second auxiliary indication signal, wherein, the One main indication signal is the cell ID for the macrocell that home base stations are belonged to according to cell or belonged to according to cell Macrocell cell ID and the cell cell ID generation, the first auxiliary indication signal is home base stations according to small The cell ID of the cell ID for the macrocell that cell is belonged to or the macrocell belonged to according to cell and described slight The cell ID generation in area, the second auxiliary indication signal is the cell ID for the macrocell that home base stations are belonged to according to cell Generated with the cell ID of the cell;
    Terminal determines the macrocell that the cell is belonged to according to the home cell indication signal detected;Or
    The home cell indication signal for the cell that terminal detection home base stations are sent, the home cell instruction letter of the cell Number it is the signal that the cell ID for the macrocell that home base stations are belonged to according to the cell ID and the cell of cell generates, The home cell indication signal of the cell includes main indication signal and auxiliary indication signal, main indication signal and auxiliary indication signal It is that home base stations generate as follows:The cell ID for the macrocell that home base stations are belonged to according to cell, respectively Main indication signal and auxiliary indication signal are generated, home base stations use the scrambler sequence related to the cell ID of the cell, The main indication signal and the auxiliary indication signal are scrambled respectively;
    Terminal determines the macrocell that the cell is belonged to according to the home cell indication signal detected.
  10. 10. method as claimed in claim 9, it is characterised in that the first main indication signal be home base stations as follows The cell ID generation of the macrocell belonged to according to cell:
    Identified in group in the cell ID for the macrocell that home base stations are belonged to according to cellAccording to Long Term Evolution LTE Master sync signal generating mode specified in system protocol generates the first main indication signal.
  11. 11. method as claimed in claim 9, it is characterised in that the first main indication signal be home base stations as follows What the cell ID of the macrocell belonged to according to cell and the cell ID of the cell generated:
    Identified in group in the cell ID for the macrocell that home base stations are belonged to according to cellAccording to LTE system agreement Specified in master sync signal generating mode generation master sync signal;
    Home base stations are used with being identified in the group in the cell ID of the cellRelated scramble sequence, or use and institute The related scramble sequence of the cell ID of cell is stated, the master sync signal of generation is scrambled, the letter that will be obtained after scrambling Number the first main indication signal of conduct.
  12. 12. method as claimed in claim 9, it is characterised in that the first auxiliary indication signal be home base stations as follows The cell ID generation of the macrocell belonged to according to cell:
    The cell ID for the macrocell that home base stations are belonged to according to cell, according to auxiliary synchronization specified in LTE system agreement Signal generation mode generates the first auxiliary indication signal.
  13. 13. method as claimed in claim 9, it is characterised in that the first auxiliary indication signal be home base stations as follows What the cell ID of the macrocell belonged to according to cell and the cell ID of the cell generated:
    Home base stations generate the first auxiliary indication signal according to auxiliary synchronous signals generating mode specified in LTE system agreement;And
    The cell for the macrocell that the s sequences and z sequences used when generating the first auxiliary indication signal is belonged to the cell Group mark in markIt is related;The c used0Group in the cell ID for the macrocell that sequence is belonged to the cell Interior markOr identified in the group in the cell ID of the cellCorrelation, the c used1Sequence and the cell institute Identified in group in the cell ID of the macrocell of ownershipOr identified in the group in the cell ID of the cellPhase Close.
  14. 14. method as claimed in claim 9, it is characterised in that the second auxiliary indication signal be home base stations as follows What the cell ID of the macrocell belonged to according to cell and the cell ID of the cell generated:
    Home base stations generate the second auxiliary indication signal according to equation below
    <mrow> <msubsup> <mi>SSS</mi> <mrow> <mi>M</mi> <mi>a</mi> <mi>c</mi> <mi>r</mi> <mi>o</mi> </mrow> <mrow> <mo>(</mo> <mn>2</mn> <mo>)</mo> </mrow> </msubsup> <mrow> <mo>(</mo> <mi>n</mi> <mo>)</mo> </mrow> <mo>=</mo> <msubsup> <mi>s</mi> <mn>0</mn> <mrow> <mo>(</mo> <msub> <mi>m</mi> <mn>0</mn> </msub> <mo>)</mo> </mrow> </msubsup> <mrow> <mo>(</mo> <mi>n</mi> <mo>)</mo> </mrow> <msubsup> <mi>s</mi> <mn>0</mn> <mrow> <mo>(</mo> <msub> <mi>m</mi> <mn>1</mn> </msub> <mo>)</mo> </mrow> </msubsup> <mrow> <mo>(</mo> <mi>n</mi> <mo>)</mo> </mrow> <msub> <mi>c</mi> <mn>0</mn> </msub> <mrow> <mo>(</mo> <mi>n</mi> <mo>)</mo> </mrow> <msub> <mi>c</mi> <mn>1</mn> </msub> <mrow> <mo>(</mo> <mi>n</mi> <mo>)</mo> </mrow> <msubsup> <mi>z</mi> <mn>1</mn> <mrow> <mo>(</mo> <msub> <mi>m</mi> <mn>0</mn> </msub> <mo>)</mo> </mrow> </msubsup> <mrow> <mo>(</mo> <mi>n</mi> <mo>)</mo> </mrow> <msubsup> <mi>z</mi> <mn>1</mn> <mrow> <mo>(</mo> <msub> <mi>m</mi> <mn>1</mn> </msub> <mo>)</mo> </mrow> </msubsup> <mrow> <mo>(</mo> <mi>n</mi> <mo>)</mo> </mrow> <mo>;</mo> </mrow>
    Wherein, s0c0c1z1For the sequence specified in LTE system agreement used in auxiliary synchronous signals generating mode, and,
    s0Group mark in the cell ID of the macrocell belonged to the cellOr the cell ID of the cell In group markCorrelation, z1Group mark in the cell ID of the macrocell belonged to the cellIt is or described small Group mark in the cell ID of cellIt is related;c0Group in the cell ID of the macrocell belonged to the cell Interior markOr identified in the group in the cell ID of the cellCorrelation, c1Belonged to the cell grand small Identified in group in the cell ID in areaOr identified in the group in the cell ID of the cellCorrelation, m0And m1 By physical-layer cell identifier groupDetermine.
  15. 15. method as claimed in claim 9, it is characterised in that the home cell indication signal of the cell also includes the Two main indication signals, the second main indication signal are the cell IDs for the macrocell that home base stations are belonged to according to the cell, Or the macrocell belonged to according to the cell cell ID and the cell cell ID generation.
  16. 16. the method as described in any in claim 9-15, it is characterised in that terminal in following condition is met at least one The home cell indication signal of cell is detected on the running time-frequency resource of individual condition:
    For TDD system, it is located at subframe 0, subframe 1, subframe 5 and subframe 6 in time domain;
    Positioned at multiple Physical Resource Block PRB centered on direct current carrier on frequency domain;
    It is located at the exclusive pilot signal CRS of cell, the channel state information reference signals CSI- that 1 port is not present in subframe in time domain RS and demodulation reference character D MRS orthogonal frequency division multiplex OFDM symbol.
  17. 17. a kind of home base stations, it is characterised in that the home base stations include:
    Signal generation unit, belonged to for the cell ID of the macrocell belonged to according to cell, or according to cell The cell ID of macrocell and the cell ID of the cell, generate the first main indication signal, belonged to according to cell Macrocell cell ID, or the cell ID of the macrocell belonged to according to cell and the cell mark of the cell Know, generate the cell mark of the first auxiliary indication signal, the cell ID of the macrocell belonged to according to cell and the cell Know, generate the second auxiliary indication signal, by the first of generation the main indication signal, the first auxiliary indication signal and the second auxiliary indication signal, Home cell indication signal as the cell;
    Signal transmitting unit, for sending the home cell indication signal to terminal, to notify that cell is returned described in terminal The macrocell of category;Or
    Signal generation unit, for the cell ID of the macrocell belonged to according to cell, generate respectively main indication signal and Auxiliary indication signal, using the scrambler sequence related to the cell ID of the cell, respectively to the main indication signal and institute Auxiliary indication signal is stated to be scrambled, by the main indication signal after scrambling and scrambling after the auxiliary indication signal, as institute State the home cell indication signal of cell;
    Signal transmitting unit, for sending the home cell indication signal to terminal, to notify that cell is returned described in terminal The macrocell of category.
  18. 18. home base stations as claimed in claim 17, it is characterised in that the signal generation unit is used for:
    Identified in group in the cell ID of the macrocell belonged to according to cellAccording to Long Term Evolution LTE system agreement Specified in master sync signal generating mode generate the first main indication signal.
  19. 19. home base stations as claimed in claim 17, it is characterised in that the signal generation unit is used for:
    Identified in group in the cell ID of the macrocell belonged to according to cellAccording to specified in LTE system agreement Master sync signal generating mode generates master sync signal;
    Using with being identified in the group in the cell ID of the cellRelated scramble sequence, or use and the cell The related scramble sequence of cell ID, the master sync signal of generation is scrambled, regard the signal obtained after scrambling as the One main indication signal.
  20. 20. home base stations as claimed in claim 17, it is characterised in that the signal generation unit is used for:
    The cell ID of the macrocell belonged to according to cell, generated according to auxiliary synchronous signals specified in LTE system agreement Mode generates the first auxiliary indication signal.
  21. 21. home base stations as claimed in claim 17, it is characterised in that the signal generation unit is used for:
    The first auxiliary indication signal is generated according to auxiliary synchronous signals generating mode specified in LTE system agreement;And
    The cell for the macrocell that the s sequences and z sequences used when generating the first auxiliary indication signal is belonged to the cell Group mark in markIt is related;The c used0Group in the cell ID for the macrocell that sequence is belonged to the cell Interior markOr identified in the group in the cell ID of the cellCorrelation, the c used1Sequence and the cell institute Identified in group in the cell ID of the macrocell of ownershipOr identified in the group in the cell ID of the cellPhase Close.
  22. 22. home base stations as claimed in claim 17, it is characterised in that the signal generation unit is used for:
    The second auxiliary indication signal is generated according to equation below
    <mrow> <msubsup> <mi>SSS</mi> <mrow> <mi>M</mi> <mi>a</mi> <mi>c</mi> <mi>r</mi> <mi>o</mi> </mrow> <mrow> <mo>(</mo> <mn>2</mn> <mo>)</mo> </mrow> </msubsup> <mrow> <mo>(</mo> <mi>n</mi> <mo>)</mo> </mrow> <mo>=</mo> <msubsup> <mi>s</mi> <mn>0</mn> <mrow> <mo>(</mo> <msub> <mi>m</mi> <mn>0</mn> </msub> <mo>)</mo> </mrow> </msubsup> <mrow> <mo>(</mo> <mi>n</mi> <mo>)</mo> </mrow> <msubsup> <mi>s</mi> <mn>0</mn> <mrow> <mo>(</mo> <msub> <mi>m</mi> <mn>1</mn> </msub> <mo>)</mo> </mrow> </msubsup> <mrow> <mo>(</mo> <mi>n</mi> <mo>)</mo> </mrow> <msub> <mi>c</mi> <mn>0</mn> </msub> <mrow> <mo>(</mo> <mi>n</mi> <mo>)</mo> </mrow> <msub> <mi>c</mi> <mn>1</mn> </msub> <mrow> <mo>(</mo> <mi>n</mi> <mo>)</mo> </mrow> <msubsup> <mi>z</mi> <mn>1</mn> <mrow> <mo>(</mo> <msub> <mi>m</mi> <mn>0</mn> </msub> <mo>)</mo> </mrow> </msubsup> <mrow> <mo>(</mo> <mi>n</mi> <mo>)</mo> </mrow> <msubsup> <mi>z</mi> <mn>1</mn> <mrow> <mo>(</mo> <msub> <mi>m</mi> <mn>1</mn> </msub> <mo>)</mo> </mrow> </msubsup> <mrow> <mo>(</mo> <mi>n</mi> <mo>)</mo> </mrow> <mo>;</mo> </mrow>
    Wherein, s0c0c1z1For the sequence specified in LTE system agreement used in auxiliary synchronous signals generating mode, and,
    s0Group mark in the cell ID of the macrocell belonged to the cellOr the cell ID of the cell In group markCorrelation, z1Group mark in the cell ID of the macrocell belonged to the cellIt is or described small Group mark in the cell ID of cellIt is related;c0Group in the cell ID of the macrocell belonged to the cell Interior markOr identified in the group in the cell ID of the cellCorrelation, c1Belonged to the cell grand small Identified in group in the cell ID in areaOr identified in the group in the cell ID of the cellCorrelation, m0And m1 By physical-layer cell identifier groupDetermine.
  23. 23. home base stations as claimed in claim 17, it is characterised in that the signal generation unit is additionally operable to:
    The cell ID of the macrocell belonged to according to the cell, or the macrocell belonged to according to the cell The cell ID of cell ID and the cell, the second main indication signal is generated, and using the second main indication signal as described in The home cell indication signal of cell.
  24. 24. the home base stations as described in any in claim 17-23, it is characterised in that the signal transmitting unit sends institute When stating the home cell indication signal of cell, the running time-frequency resource of at least one condition met in following condition is used:
    For TDD system, it is located at subframe 0, subframe 1, subframe 5 and subframe 6 in time domain;
    Positioned at multiple Physical Resource Block PRB centered on direct current carrier on frequency domain;
    It is located at the exclusive pilot signal CRS of cell, the channel state information reference signals CSI- that 1 port is not present in subframe in time domain RS and demodulation reference character D MRS orthogonal frequency division multiplex OFDM symbol.
  25. 25. a kind of terminal, it is characterised in that the terminal includes:
    Detecting signal unit, the home cell indication signal of the cell for detecting home base stations transmission, the cell Home cell indication signal is the small of the macrocell that home base stations are belonged to according to the cell ID and the cell of cell The signal of area's mark generation, the home cell indication signal of the detection include the first main indication signal, the first auxiliary indication signal With the second auxiliary indication signal, wherein, the first main indication signal is the cell for the macrocell that home base stations are belonged to according to cell Mark, or the cell ID of the macrocell belonged to according to cell and the cell ID of the cell generation, first Auxiliary indication signal is the cell ID for the macrocell that home base stations are belonged to according to cell, or belonged to according to cell What the cell ID of macrocell and the cell ID of the cell generated, the second auxiliary indication signal is home base stations according to slight What the cell ID for the macrocell that area is belonged to and the cell ID of the cell generated;
    Cell determining unit, for according to the home cell indication signal detected, determining what the cell was belonged to Macrocell;Or
    Detecting signal unit, the home cell indication signal of the cell for detecting home base stations transmission, the cell Home cell indication signal is the small of the macrocell that home base stations are belonged to according to the cell ID and the cell of cell The signal of area's mark generation, the home cell indication signal of the cell of the detection include main indication signal and auxiliary instruction Signal, wherein, main indication signal and auxiliary indication signal are that home base stations generate as follows:Home base stations are according to slight The cell ID for the macrocell that area is belonged to, generates main indication signal and auxiliary indication signal respectively, home base stations use with it is described The related scrambler sequence of the cell ID of cell, is scrambled to the main indication signal and the auxiliary indication signal respectively;
    Cell determining unit, for according to the home cell indication signal detected, determining what the cell was belonged to Macrocell.
  26. 26. terminal as claimed in claim 25, it is characterised in that the first main indication signal of the detecting signal unit detection It is the cell ID generation for the macrocell that home base stations are belonged to according to cell as follows:
    Identified in group in the cell ID for the macrocell that home base stations are belonged to according to cellAccording to Long Term Evolution LTE Master sync signal generating mode specified in system protocol generates the first main indication signal.
  27. 27. terminal as claimed in claim 25, it is characterised in that the first main indication signal of the detecting signal unit detection It is the cell ID for the macrocell that home base stations are belonged to according to cell as follows and the cell mark of the cell Know generation:
    Identified in group in the cell ID for the macrocell that home base stations are belonged to according to cellAccording to LTE system agreement Specified in master sync signal generating mode generation master sync signal;
    Home base stations are used with being identified in the group in the cell ID of the cellRelated scramble sequence, or use with The related scramble sequence of the cell ID of the cell, is scrambled to the master sync signal of generation, by what is obtained after scrambling Signal is as the first main indication signal.
  28. 28. terminal as claimed in claim 25, it is characterised in that the first auxiliary indication signal of the detecting signal unit detection It is the cell ID generation for the macrocell that home base stations are belonged to according to cell as follows:
    The cell ID for the macrocell that home base stations are belonged to according to cell, according to auxiliary synchronization specified in LTE system agreement Signal generation mode generates the first auxiliary indication signal.
  29. 29. terminal as claimed in claim 25, it is characterised in that the first auxiliary indication signal of the detecting signal unit detection It is the cell ID for the macrocell that home base stations are belonged to according to cell as follows and the cell mark of the cell Know generation:
    Home base stations generate the first auxiliary indication signal according to auxiliary synchronous signals generating mode specified in LTE system agreement;And
    The cell for the macrocell that the s sequences and z sequences used when generating the first auxiliary indication signal is belonged to the cell Group mark in markIt is related;The c used0Group in the cell ID for the macrocell that sequence is belonged to the cell Interior markOr identified in the group in the cell ID of the cellCorrelation, the c used1Sequence and the cell institute Identified in group in the cell ID of the macrocell of ownershipOr identified in the group in the cell ID of the cellPhase Close.
  30. 30. terminal as claimed in claim 25, it is characterised in that the second auxiliary indication signal of the detecting signal unit detection It is the cell ID for the macrocell that home base stations are belonged to according to cell as follows and the cell mark of the cell Know generation:
    Home base stations generate the second auxiliary indication signal according to equation below
    <mrow> <msubsup> <mi>SSS</mi> <mrow> <mi>M</mi> <mi>a</mi> <mi>c</mi> <mi>r</mi> <mi>o</mi> </mrow> <mrow> <mo>(</mo> <mn>2</mn> <mo>)</mo> </mrow> </msubsup> <mrow> <mo>(</mo> <mi>n</mi> <mo>)</mo> </mrow> <mo>=</mo> <msubsup> <mi>s</mi> <mn>0</mn> <mrow> <mo>(</mo> <msub> <mi>m</mi> <mn>0</mn> </msub> <mo>)</mo> </mrow> </msubsup> <mrow> <mo>(</mo> <mi>n</mi> <mo>)</mo> </mrow> <msubsup> <mi>s</mi> <mn>0</mn> <mrow> <mo>(</mo> <msub> <mi>m</mi> <mn>1</mn> </msub> <mo>)</mo> </mrow> </msubsup> <mrow> <mo>(</mo> <mi>n</mi> <mo>)</mo> </mrow> <msub> <mi>c</mi> <mn>0</mn> </msub> <mrow> <mo>(</mo> <mi>n</mi> <mo>)</mo> </mrow> <msub> <mi>c</mi> <mn>1</mn> </msub> <mrow> <mo>(</mo> <mi>n</mi> <mo>)</mo> </mrow> <msubsup> <mi>z</mi> <mn>1</mn> <mrow> <mo>(</mo> <msub> <mi>m</mi> <mn>0</mn> </msub> <mo>)</mo> </mrow> </msubsup> <mrow> <mo>(</mo> <mi>n</mi> <mo>)</mo> </mrow> <msubsup> <mi>z</mi> <mn>1</mn> <mrow> <mo>(</mo> <msub> <mi>m</mi> <mn>1</mn> </msub> <mo>)</mo> </mrow> </msubsup> <mrow> <mo>(</mo> <mi>n</mi> <mo>)</mo> </mrow> <mo>;</mo> </mrow>
    Wherein, s0c0c1z1For the sequence specified in LTE system agreement used in auxiliary synchronous signals generating mode, and,
    s0Group mark in the cell ID of the macrocell belonged to the cellOr the cell ID of the cell In group markCorrelation, z1Group mark in the cell ID of the macrocell belonged to the cellIt is or described small Group mark in the cell ID of cellIt is related;c0Group in the cell ID of the macrocell belonged to the cell Interior markOr identified in the group in the cell ID of the cellCorrelation, c1Belonged to the cell grand small Identified in group in the cell ID in areaOr identified in the group in the cell ID of the cellCorrelation, m0And m1 By physical-layer cell identifier groupDetermine.
  31. 31. terminal as claimed in claim 25, it is characterised in that the cell of the detecting signal unit detection is returned Category cell indication signal also includes the second main indication signal, and the second main indication signal is that home base stations are returned according to the cell The cell ID of the macrocell of category, or the cell ID of the macrocell belonged to according to the cell and the cell Cell ID generation.
  32. 32. the terminal as described in any in claim 25-31, it is characterised in that the detecting signal unit is as follows in satisfaction The home cell indication signal of cell is detected on the running time-frequency resource of at least one condition in condition:
    For TDD system, it is located at subframe 0, subframe 1, subframe 5 and subframe 6 in time domain;
    Positioned at multiple Physical Resource Block PRB centered on direct current carrier on frequency domain;
    It is located at the exclusive pilot signal CRS of cell, the channel state information reference signals CSI- that 1 port is not present in subframe in time domain RS and demodulation reference character D MRS orthogonal frequency division multiplex OFDM symbol.
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