CN103906127B - The method and system of long-term evolving network co-frequency neighbor cell measurement - Google Patents

The method and system of long-term evolving network co-frequency neighbor cell measurement Download PDF

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CN103906127B
CN103906127B CN201210575924.5A CN201210575924A CN103906127B CN 103906127 B CN103906127 B CN 103906127B CN 201210575924 A CN201210575924 A CN 201210575924A CN 103906127 B CN103906127 B CN 103906127B
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cre
cell
measurement
user terminal
measurements
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CN103906127A (en
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蒋峥
毕奇
李欣
刘洋
陈鹏
杨峰义
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China Telecom Corp Ltd
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China Telecom Corp Ltd
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Abstract

The invention discloses a kind of method and system of long-term evolving network co-frequency neighbor cell measurement.This method includes：Macro base station sends Radio Resource connection control RRC connection reconfiguration messages to user terminal, and the cell ID of adjacent cell is included in RRC connection reconfiguration messages, and the base station type of corresponding adjacent cell, base station type include CRE base stations or non-CRE base stations；User terminal selects corresponding synchronizing channel and the detection algorithm of pilot signal cell measurement to measure according to base station type.The method and system of long-term evolving network co-frequency neighbor cell measurement provided by the present invention, user terminal can be reduced in heterogeneous network in the generation of cell reselection mistiming detection case, improve user terminal and carry out the accuracy of co-frequency neighbor cell measurement, while reduce the complexity of synchronization signal detection.

Description

The method and system of long-term evolving network co-frequency neighbor cell measurement
Technical field
The present invention relates to wireless communication field, more particularly to a kind of method of long-term evolving network co-frequency neighbor cell measurement with System.
Background technology
As user constantly increases to the demand of mobile data services, mobile network's speed will increase rapidly in future, future Substantial amounts of throughput of system will occur in indoor and focus scene.Mobile communications network also will be from original with single level, grand honeybee Based on nest networking, changed to multi-level, grand micro- isomery networking.The center of gravity of mobile communications network construction also can be from continuous covering It is changed into for main target based on continuous cover, to meet outdoor focus, indoor capacity increased requirement as main target.
Following Long Term Evolution（Long Term Evolution, LTE）In heterogeneous network in addition to traditional macro base station, also Can exist relative to the smaller transmitting node of conventional macro base station transmission power, such as Pico cell (Pico cell) base station, millimicro These nodes, are referred to as micro- by microcellulor (Femto cell) base station, and the relay station (Relay) for signal relaying below Base station.The volume and transmission power of micro-base station are smaller, are easy to neatly dispose in a network, these are introduced in macrocellular network Micro-base station, good guarantee can be provided for indoor and focus scene covering.
However, the topological structure that new low power nodes change legacy network is introduced, because micro-base station transmission power is low, Under the conditions of identical networking, down channel can be caused micro cellular system hydraulic performance decline by the strong interference of macro base station.
Shown in Figure 1, Fig. 1 shows the MPS process schematic diagram of heterogeneous network in long-term evolving network.A2 regions in Fig. 1 For micro-base station normal coverage area, the micro-base station downstream signal in this region is more than macro base station, in this zone user terminal（UE） Micro-base station is automatically accessed according to signal intensity.The big regions of A1 are macro base station coverage area in Fig. 1, in this region under macro base station Row signal is significantly greater than micro-base station, and user terminal automatically accesses macro base station according to signal intensity.A3 regions are under macro base station in Fig. 1 Row signal is more than micro-base station region, and user terminal should access macro base station, in order to reduce the flow pressure of macro base station, it is proposed that small Area extends（Cell Range Extension, CRE）Technology, that is, wish user terminal in A3 regions still scheduling switch to it is micro- Base station.
At present, 3GPP introduces CRE and almost blank subframe simultaneously in LTE Rel.10 versions（Almost Blank Subframe, ABS）Technology.Shown in Figure 2, i.e., macrocellular does not send any user data in specific descending ABS subframes And control information, the technology avoids disturbing between existing data between grand microcellulor by the method for time-division, so that user Terminal also has access to microcellulor even in the stronger overlay area of macrocellular signal, and carries out proper communication, different so as to improve The overall spectrum utilization ratio of network forming network.
However, to realize backwards compatibility, 3GPP standards provide that macrocellular still sends synchronous letter as usual in ABS subframes Breath（PSS/SSS）And broadcast message（PBCH）.Shown in Figure 2, Fig. 2 shows to sample in heterogeneous network in long-term evolving network The frame structure schematic diagram of ABS subframes.Above-mentioned synchronizing information and broadcast message in ABS subframes be present, user terminal is in heterogeneous network During middle progress cell reselection, measured for co-frequency neighbor cell, because microcellulor synchronizing channel is by the strong of macrocellular synchronizing channel Strong interference, user terminal can not detect Microcell synchronizing signal using correlation detection principle, so as to CRE technologies be used to switch To microcellulor, for example, macrocell SF3, SF4 are ABS subframes in Fig. 2, synchronizing information therein is with broadcast message in Microcell Micro-base station remote subscriber produces interference.
Shown in Figure 3, Fig. 3 shows the results contrast schematic diagram of co-frequency neighbor cell measurement in the prior art.Such as Fig. 3 institutes Show, the synchronizing signal that user terminal detects micro-base station S2 cells using correlation detection principle is unable to reach detection threshold value, occurs Error detection, so as to which S2 can not be switched to.If user terminal is eliminated using the higher interference of complexity（Interference Cancellation, IC）Algorithm improves Microcell synchronization signal detection performance, can cause the weak synchronous letter of other macro base stations again Number detect, error detection occurs, reports by mistake, as shown in figure 3, sampling interference cancellation algorithm detects macro base station S3 synchronous letter Number it is higher than detection threshold value, or non-CRE microcellulor synchronizing signal is treated as to enter using the microcellulor synchronizing signal of CRE technologies Row detection, causes metrical information to produce deviation.In addition, user terminal is not added with the use IC algorithm measurement synchronizing signals distinguished, also The complexity of synchronization signal detection can be increased, improve mobile phone cost, reduce the cell phone standby time.
It can be seen that when user terminal carries out cell reselection in heterogeneous network in the prior art, it is suitable due to that can not select Measurement Algorithm carries out signal measurement, the problem of not only producing cell error detection, report by mistake, but also may increase synchronizing signal inspection The complexity of survey.
The content of the invention
One side according to embodiments of the present invention, a technical problem to be solved are：A kind of Long Term Evolution is provided The method and system of network common frequency adjacent cell measurement, improve user terminal in heterogeneous network and carry out the accurate of co-frequency neighbor cell measurement Property.
A kind of method of long-term evolving network co-frequency neighbor cell measurement provided in an embodiment of the present invention, methods described include：
Macro base station sends Radio Resource connection control RRC connection reconfiguration messages to user terminal, and the RRC connections are matched somebody with somebody again The cell ID that adjacent cell is included in message, and the base station type of corresponding adjacent cell are put, the base station type includes CRE bases Stand or non-CRE base stations；
The user terminal is and right according to the cell ID of the adjacent cell included in the RRC connections reconfiguration message The base station type for the adjacent cell answered, using the adjacent cell as measurement cell, calculated using the corresponding detection of the base station type Method carries out co-frequency neighbor cell measurement to the measurement cell.
Preferably, the measurement cell is carried out in the detection algorithm corresponding using the base station type adjacent with frequency Before cell measurement, methods described also includes：
The user terminal identifies whether the adjacent cell included in the RRC connections reconfiguration message has the neighbour of CRE base stations Cell；
If not including the adjacent cell of CRE base stations in the RRC connections reconfiguration message, the user terminal is examined using related The received signal strength and received signal quality of the pilot signal of method of determining and calculating measurement serving cell；The user terminal is according to The received signal strength and received signal quality of pilot signal, calculate the received signal strength and received signal quality of serving cell Whether the measuring condition of co-frequency neighbor cell measurement is met；Testing conditions in response to meeting co-frequency neighbor cell measurement, described in execution The cell of channel and pilot signal is synchronized to the measurement adjacent cell using the corresponding detection algorithm of the base station type Measurement operation.
If including the adjacent cell of CRE base stations in the RRC connections reconfiguration message, the user terminal performs the use The corresponding detection algorithm of the base station type synchronizes channel and the cell measurement of pilot signal to the measurement adjacent cell Operation.
Preferably, the detection algorithm corresponding using the base station type synchronizes letter to the measurement adjacent cell The cell measurement in road and pilot signal, is specifically included：
The user terminal measures the limitation of subframe according to the non-CRE and CRE included in the RRC connections reconfiguration message Information, generation measurement subframe list, wherein, the measurement subframe list includes the sequence number of measurement subframe, and the sequence number pair The CRE marks for the measurement subframe answered, the CRE marks include non-CRE measurements subframe, CRE measurement subframes；
The limitation that user terminal measures cell according to the non-CRE and CRE included in the RRC connections reconfiguration message is believed Breath, generation CRE measurement cell lists and non-CRE measurement cell lists；
The user terminal measures cell list according to the measurement subframe list with the CRE, is eliminated and calculated using interference Method synchronizes channel and the cell measurement of pilot signal；And
The user terminal measures cell list according to the measurement subframe list and the non-CRE, uses coherent detection Algorithm synchronizes channel and the cell measurement of pilot signal.
Preferably, the user terminal measures son according to the non-CRE and CRE included in the RRC connections reconfiguration message The restricted information of frame, generation measurement subframe list, is specifically included：
The user terminal identifies the limit that non-CRE and CRE measurement subframes whether are included in the RRC connections reconfiguration message Information processed；
If including the restricted information of non-CRE and CRE measurement subframes, the user terminal adds non-CRE subframes with CRE subframes Enter to measure subframe list, and the CRE of mark measurement subframe is identified as non-CRE measurement subframes and CRE measurement subframes respectively；Otherwise, Measurement subframe list is added using all subframes as non-CRE subframes, and the CRE for identifying measurement subframe is identified as non-CRE measurements Frame.
Preferably, user terminal measures cell according to the non-CRE and CRE included in the RRC connections reconfiguration message Restricted information, generation CRE measurement cell lists and non-CRE measurement cell lists, are specifically included：
The user terminal identifies the limit that non-CRE and CRE measurement cells whether are included in the RRC connections reconfiguration message Information processed；
If including the restricted information of non-CRE and CRE measurement cells, the user terminal is small by the CRE measurements for allowing measurement Area identifies is separately added into CRE and non-CRE measurement cell lists with non-CRE measurement cell IDs；Otherwise, by all cell marks Know and add non-CRE measurements cell list.
Preferably, the user terminal measures cell list according to the measurement subframe list with the CRE, uses interference Elimination algorithm synchronizes channel and the cell measurement of pilot signal, specifically includes：
The user terminal identifies whether to have completed each CRE measurement cell IDs in the CRE measurements cell list The measurement of corresponding CRE measurements cell；
Measurement in response to not completing CRE measurement cells corresponding to each CRE measurement cell IDs, the user terminal CRE measurement cells corresponding to the unmeasured CRE measurements cell ID of selection one；
The user terminal is identified as corresponding to the sequence number of CRE measurement subframes according to the measurement subframe list in CRE In subframe, the pilot frequency information of the CRE measurements cell is measured using interference cancellation algorithm；
The user terminal detects the synchronous channel information of the CRE measurements cell using interference cancellation algorithm.
Preferably, methods described also includes：
Synchronous channel information and pilot frequency information in response to CRE measurement cells meet the requirement that reports of CRE cells, institute State user terminal and re-selecting cell list is treated into CRE measurement cell ID additions；Otherwise, the user terminal re-executes knowledge The measurement of CRE measurement cells corresponding to each CRE measurement cell IDs in the CRE measurements cell list whether has not been completed Operation.
Preferably, the user terminal measures cell list according to the measurement subframe list and the non-CRE, uses phase Close detection algorithm and synchronize channel and the cell measurement of pilot signal, specifically include：
The user terminal identifies whether to have completed each non-CRE measurements cell in the non-CRE measurements cell list The measurement of non-CRE measurements cell corresponding to mark；
Measurement in response to not completing non-CRE measurements cell corresponding to each non-CRE measurements cell ID, the user Terminal selects non-CRE measurements cell corresponding to a unmeasured non-CRE measurements cell ID；
The user terminal is identified as corresponding to the sequence number of non-CRE measurements subframe according to the measurement subframe list in CRE Subframe on, the pilot frequency information of cell is measured using the correlation detection principle measurement non-CRE；
The user terminal measures the synchronous channel information of cell using the correlation detection principle detection non-CRE.
Preferably, methods described also includes：
Meet that reporting for non-CRE cells will in response to the synchronous channel information and pilot frequency information of the non-CRE measurements cell Ask, the non-CRE measurements cell ID is added and treats re-selecting cell list by the user terminal；Otherwise, the user terminal weight New perform identifies whether to have completed non-CRE corresponding to each non-CRE measurements cell ID in the non-CRE measurements cell list Measure the measurement operation of cell.
Preferably, co-frequency neighbor cell survey is carried out to the measurement cell using the base station type corresponding detection algorithm After amount, methods described also includes：
The user terminal completes confirmation message to the macro base station send configuration；
The user terminal reports the message of measurement to the macro base station；
The metrical information sent in response to receiving shown user terminal, shown macro base station is sent to the user terminal matches somebody with somebody Put cell handover information.
A kind of system of long-term evolving network co-frequency neighbor cell measurement provided in an embodiment of the present invention, the system include：
Macro base station, for sending Radio Resource connection control RRC connection reconfiguration messages to user terminal, the RRC connects Connect the cell ID that adjacent cell is included in reconfiguration message, and the base station type of corresponding adjacent cell, the base station type bag Include CRE base stations or non-CRE base stations；
User terminal, for the cell ID according to the adjacent cell included in the RRC connections reconfiguration message, and it is right The base station type for the adjacent cell answered, using the adjacent cell as measurement cell, calculated using the corresponding detection of the base station type Method carries out co-frequency neighbor cell measurement to the measurement cell.
Preferably, the user terminal, it is additionally operable to using the corresponding detection algorithm of the base station type to the survey Before measuring cell progress co-frequency neighbor cell measurement, identify whether the adjacent cell included in the RRC connections reconfiguration message has CRE The adjacent cell of base station；
If not including the adjacent cell of CRE base stations in the RRC connections reconfiguration message, measured and taken using correlation detection principle The received signal strength and received signal quality of the pilot signal for cell of being engaged in；The user terminal connects according to the pilot signal Signal intensity and received signal quality are received, the received signal strength of serving cell is calculated and whether received signal quality meets with frequency The measuring condition of adjacent cell measurement；Testing conditions in response to meeting co-frequency neighbor cell measurement, execution is described to use the base station The corresponding detection algorithm of type synchronizes the operation of channel and the cell measurement of pilot signal to the measurement cell.
If including the adjacent cell of CRE base stations in the RRC connections reconfiguration message, execution is described to use the base station type Corresponding detection algorithm synchronizes the operation of channel and the cell measurement of pilot signal to the measurement cell.
Preferably, the user terminal, specifically for according to the non-CRE that is included in the RRC connections reconfiguration message and CRE measures the restricted information of subframe, and generation measures subframe list, wherein, the measurement subframe list includes the sequence of measurement subframe Number, and the CRE marks of measurement subframe corresponding to the sequence number, the CRE, which is identified, includes non-CRE measurements subframe, CRE measurement Frame, it is that CRE measurements subframe is also non-CRE measurements subframe；
According to the restricted information of non-CRE and CRE the measurement cell included in the RRC connections reconfiguration message, CRE is generated Measure cell list and non-CRE measurement cell lists；
According to the measurement subframe list and CRE measurement cell lists, letter is synchronized using interference cancellation algorithm The cell measurement in road and pilot signal；And
According to the measurement subframe list and the non-CRE measurements cell list, synchronized using correlation detection principle The cell measurement of channel and pilot signal.
Preferably, the user terminal, specifically for identifying in the RRC connections reconfiguration message whether include non-CRE With the restricted information of CRE measurement subframes；If the restricted information of non-CRE and CRE measurement subframes is included, by non-CRE subframes and CRE Frame adds measurement subframe list, and the CRE of mark measurement subframe is identified as non-CRE measurement subframes and CRE measurement subframes respectively；It is no Then, measurement subframe list is added using all subframes as non-CRE subframes, and the CRE for identifying measurement subframe is identified as non-CRE measurements Subframe.
Preferably, the user terminal, specifically for identifying in the RRC connections reconfiguration message whether include non-CRE With the restricted information of CRE measurement cells；If including the restricted information of non-CRE and CRE measurement cells, measurement will be allowed respectively CRE measures cell ID and is separately added into CRE and non-CRE measurement cell lists with non-CRE measurement cell IDs；Otherwise, by described in Cell ID adds non-CRE measurements cell list.
Preferably, the user terminal, specifically for identifying whether to have completed each in the CRE measurements cell list The measurement of CRE measurement cells corresponding to CRE measurement cell IDs；
Measurement in response to not completing CRE measurement cells corresponding to each CRE measurement cell IDs, selects one and does not survey CRE measurement cells corresponding to the CRE measurement cell IDs of amount；
According to the measurement subframe list, it is identified as in the subframe corresponding to the sequence number of CRE measurement subframes, uses in CRE Interference cancellation algorithm measures the pilot frequency information of the CRE measurements cell；
The synchronous channel information of the CRE measurements cell is detected using interference cancellation algorithm.
Preferably, the user terminal, synchronous channel information and pilot tone letter in response to CRE measurement cells are additionally operable to What breath met CRE cells reports requirements, and the CRE is measured into cell ID addition treats re-selecting cell list；Otherwise, re-execute Identify whether to have completed the survey that CRE corresponding to each CRE measurement cell IDs in the CRE measurements cell list measures cell Amount operation.
Preferably, the user terminal, it is each in the non-CRE measurements cell list specifically for identifying whether to have completed The measurement of non-CRE measurements cell corresponding to individual non-CRE measurements cell ID；
Measurement in response to not completing non-CRE measurements cell corresponding to each non-CRE measurements cell ID, selects one Non- CRE measurements cell corresponding to unmeasured non-CRE measurements cell ID；
According to the measurement subframe list, it is identified as in the subframe corresponding to the sequence number of non-CRE measurements subframe, adopts in CRE With the pilot frequency information of the correlation detection principle measurement non-CRE measurements cell；
Using the synchronous channel information of the correlation detection principle detection non-CRE measurements cell.
Preferably, the user terminal, synchronous channel information and pilot tone in response to the non-CRE measurements cell are additionally operable to What information met non-CRE cells reports requirement, and the non-CRE measurements cell ID is added and treats re-selecting cell list；Otherwise, weight New perform identifies whether to have completed non-CRE corresponding to each non-CRE measurements cell ID in the non-CRE measurements cell list Measure the measurement operation of cell.
Preferably, the user terminal, the corresponding detection algorithm of the base station type is also used for the measurement After cell carries out co-frequency neighbor cell measurement, confirmation message is completed to the macro base station send configuration；Reported to the macro base station The message of measurement；
The macro base station, the metrical information sent in response to receiving shown user terminal is additionally operable to, it is whole to the user Hold send configuration cell handover information.
The method and system of the long-term evolving network co-frequency neighbor cell measurement provided based on the above embodiment of the present invention, is passed through Macro base station is indicated the base station type of user terminal cell again using high-level signaling, specifically, by sending RRC connections Reconfiguration message is indicated, the cell ID of adjacent cell, and the base station type of corresponding adjacent cell is included in the message, i.e., CRE base stations or non-CRE base stations so that user terminal can select the inspection that corresponding co-frequency neighbor cell measures according to base station type Method of determining and calculating, the situation that error detection occurs in cell reselection for user terminal in heterogeneous network is reduced, improve user terminal and carry out together The accuracy of frequency adjacent district measurement, while reduce the complexity of synchronization signal detection.
By referring to the drawings to the present invention exemplary embodiment detailed description, further feature of the invention and its Advantage will be made apparent from.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing There is the required accompanying drawing used in technology description to be briefly described, it should be apparent that, drawings in the following description are only this Some embodiments of invention, for those of ordinary skill in the art, without having to pay creative labor, may be used also To obtain other accompanying drawings according to these accompanying drawings.
Simultaneously, it should be appreciated that for the ease of description, the size of the various pieces shown in accompanying drawing is not according to reality Proportionate relationship draw.Similar label and letter represents similar terms in following accompanying drawing, therefore, once a certain Xiang Yi It is defined, then it need not be further discussed in subsequent accompanying drawing in individual accompanying drawing.
The accompanying drawing of a part for constitution instruction describes embodiments of the invention, and is used to solve together with the description Release the principle of the present invention.
Referring to the drawings, according to following detailed description, the present invention can be more clearly understood, wherein：
Fig. 1 shows the MPS process schematic diagram in heterogeneous network in long-term evolving network；
Fig. 2 shows to sample the frame structure schematic diagram of ABS subframes in long-term evolving network in heterogeneous network；
Fig. 3 shows the results contrast schematic diagram of co-frequency neighbor cell measurement in the prior art；
Fig. 4 shows a kind of flow of embodiment of method of long-term evolving network co-frequency neighbor cell measurement provided by the present invention Schematic diagram；
Fig. 5 shows that the method another kind of long-term evolving network co-frequency neighbor cell measurement provided by the present invention applies the flow of example Schematic diagram；
Fig. 6 show long-term evolving network co-frequency neighbor cell provided by the present invention measurement method another apply the flow of example Schematic diagram；
Fig. 7 show long-term evolving network co-frequency neighbor cell provided by the present invention measurement method another apply the flow of example Schematic diagram；
Fig. 8 show long-term evolving network co-frequency neighbor cell provided by the present invention measurement method another apply the flow of example Schematic diagram；
Fig. 9 show long-term evolving network co-frequency neighbor cell provided by the present invention measurement method another apply the flow of example Schematic diagram；
Figure 10 show long-term evolving network co-frequency neighbor cell provided by the present invention measurement method another apply the stream of example Journey schematic diagram；
Figure 11 shows a kind of stream of embodiment of system of long-term evolving network co-frequency neighbor cell measurement provided by the present invention Journey schematic diagram.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.It should note Anticipate and arrive：Unless specifically stated otherwise, the part and the positioned opposite of step otherwise illustrated in these embodiments does not limit this hair Bright scope.
The description only actually at least one exemplary embodiment is illustrative to be never used as to the present invention below And its application or any restrictions that use.Based on the embodiment in the present invention, those of ordinary skill in the art are not making wound The every other embodiment obtained under the premise of the property made work, belongs to the scope of protection of the invention.
It may be not discussed in detail for technology, method and apparatus known to person of ordinary skill in the relevant, but suitable In the case of, the technology, method and apparatus should be considered as authorizing part for specification.
In shown here and discussion all examples, any occurrence should be construed as merely exemplary, without It is as limitation.Therefore, the other examples of exemplary embodiment can have different values.
Shown in Figure 4, Fig. 4 shows that the method for long-term evolving network co-frequency neighbor cell measurement provided by the present invention is a kind of Apply the schematic flow sheet of example.The method for the LTE network co-frequency neighbor cell measurement that the embodiment provides includes operation introduced below.
401, macro base station sends Radio Resource connection control to user terminal（Radio Resource Control, RRC） Reconfiguration message is connected, the cell ID of adjacent cell, and the base station of corresponding adjacent cell are included in RRC connection reconfiguration messages Type, base station type include CRE base stations or non-CRE base stations.
In 401 operation, macro base station can reconfigure in the RRC connections of transmission （RRCConnectionReconfiguration）The MeasObjectEUTRA items of message are configured to required for user terminal measurement Parameter information configured and indicated, include the cell ID of adjacent cell, and corresponding adjacent cell belong to CRE base stations or The non-CRE base stations of person.List can be identified in adjacent cell（Cell ID list）In list the cell ID of adjacent cell, and correspondingly Base station type.In addition, also include the parameter informations such as configuration measurement frequency point, Measurement bandwidth, measurement antenna end slogan in the message.
In addition, ReportConfigEUTRA items can also be included in RRC connection reconfiguration messages, for configuring user's end The parameter of the agreement defined such as trigger condition, the trigger condition that measurement result reports of adjacent cell measurement is held, it is mobile whole to cause Hold the content trigger measurement process according to RRC connection reconfiguration messages.
402, user terminal is and corresponding according to the cell ID of the adjacent cell included in RRC connection reconfiguration messages The base station type of adjacent cell, using adjacent cell as measurement cell, using the corresponding detection algorithm of base station type to measuring cell Co-frequency neighbor cell measurement is carried out, co-frequency neighbor cell measurement can include the measurement of synchronizing channel and pilot signal.
Based on above method embodiment, RRC connections reconfiguration message is sent by macro base station and indicated, is wrapped in the message Cell ID containing adjacent cell, and the base station type of corresponding adjacent cell so that user terminal can select according to base station type The detection algorithm of corresponding co-frequency neighbor cell measurement is selected, the situation that error detection occurs in cell reselection for user terminal is reduced, carries High user terminal carries out the accuracy of co-frequency neighbor cell measurement, while reduces the complexity of synchronization signal detection.
Shown in Figure 5, Fig. 5 shows that the method for long-term evolving network co-frequency neighbor cell measurement provided by the present invention is another Kind applies the schematic flow sheet of example.According to the inventive method embodiment specific example, according to RRC connection reconfiguration messages Content is adjacent small with frequency to the progress of measurement cell using the corresponding detection algorithm of base station type 402 after triggering measurement process Before region measurement, this method can also include following 403 to 406 operation compared to Fig. 1.
403, user terminal identifies whether the adjacent cell included in RRC connection reconfiguration messages has the adjacent cell of CRE base stations； If not including the adjacent cell of CRE base stations in RRC connection reconfiguration messages, 404 to 406 operation is performed；If RRC connections reconfigure The adjacent cell of CRE base stations is included in message, performs 402 operation.
404, user terminal measures the received signal strength of the pilot signal of serving cell using correlation detection principle （Qrxlevmeas）With received signal quality（Qqualmeas）.
405, user terminal is according to the received signal strength of pilot signal（Qrxlevmeas）With received signal quality （Qqualmeas）, calculate the received signal strength of serving cell（Srxlev）With received signal quality（Squal）.Specific calculating process is such as Under：
Srxlev=Qrxlevmeas–(Qrxlevmin+Qrxlevminoffset)–Pcompensation；
Squal=Qqualmeas–(Qqualmin+Qqualminoffset)；
Wherein, QrxlevmeasFor measurement cell received signal strength (RSRP), user terminal is by believing serving cell pilot tone Number acquisition is measured using related algorithm；
QqualmeasFor measurement cell received signal quality (RSRQ), user terminal to serving cell pilot signal by using Related algorithm measures acquisition；
QrxlevminFor the measurement cell received signal strength (dBm) of minimum, obtained by the system information of serving cell；
Qrxlevminoffset—QrxlevminThe allowance of value, obtained by the system information of serving cell.
QqualminFor minimum measurement cell received signal quality (dB), obtained by the system information of serving cell；
Qqualminoffset—QqualminThe allowance of value, obtained by the system information of serving cell；
Pcompensation—max(PEMAX–PPowerClass,0)(dB);
PEMAXThe maximum transmit power level used for the user terminal defined in standard；
PPowerClassFor the maximum radio frequency RF power outputs defined in standard.
406, identify whether the received signal strength of serving cell（Srxlev）With received signal quality（Squal）Whether meet The measuring condition of co-frequency neighbor cell measurement；Testing conditions in response to meeting co-frequency neighbor cell measurement, perform 402 operation；It is no Execution follow-up process can then be terminated.In 406 operation, meeting the measuring condition of co-frequency neighbor cell measurement can be：
Srxlev>SIntraSearchPAnd Squal>SIntraSearchQ, wherein SIntraSearchPFor the S of co-frequency cell measurementrxlevDoor Limit (dB), user terminal can be obtained by system message；SIntraSearchQFor the S of co-frequency neighbor cell measurementqualThresholding (dB), User terminal can be obtained by system message.When the conditions are satisfied, the operation of co-frequency neighbor cell measurement is carried out.
Afterwards, with Fig. 1 similarly, user terminal is performed using the corresponding detection algorithm pair of base station type in 402 The operation that cell carries out co-frequency neighbor cell measurement is measured, i.e., measurement adjacent cell is entered using base station type corresponding detection algorithm The cell measurement operations of row synchronizing channel and pilot signal.
As a kind of preferred embodiment, the non-CRE and CRE that can also be included in RRC connection reconfiguration messages are surveyed The restricted information of quantum frame, and the restricted information of non-CRE and CRE measurement cells, can be by RRC connection reconfiguration messages Middle new field is used to indicate these information.Progress is known by subframe sequence number by the restricted information terminal for measuring subframe The position of the wireless sub-frame of measurement, so as to obtain time of measuring, and obtain the mark of measurement cell.
Shown in Figure 6, Fig. 6 shows that the method for long-term evolving network co-frequency neighbor cell measurement provided by the present invention is another Kind applies the schematic flow sheet of example.Operation 402 uses the corresponding detection algorithm of base station type to measuring cell in above-described embodiment Co-frequency neighbor cell measurement is carried out, compared to Fig. 5,402 operations in the embodiment can pass through following 4021-4023 behaviour Realize.
4021, the limitation that user terminal measures subframe according to the non-CRE and CRE included in RRC connection reconfiguration messages is believed Breath, generation measurement subframe list, wherein, the list of measurement subframe includes the sequence number of measurement subframe, and measurement corresponding to sequence number The CRE marks of frame, CRE marks include non-CRE measurements subframe, CRE measurement subframes.
Shown in Figure 7, Fig. 7 shows that the method for long-term evolving network co-frequency neighbor cell measurement provided by the present invention is another Kind applies the schematic flow sheet of example.According to the inventive method embodiment specific example, in the operation 4021 of above-described embodiment, User terminal measures the restricted information of subframe, generation measurement according to the non-CRE and CRE included in RRC connection reconfiguration messages Frame list, compared to Fig. 6,4021 operations in the embodiment can specifically be realized in the following way：
4021a, user terminal identify the limitation that non-CRE and CRE measurement subframes whether are included in RRC connection reconfiguration messages Information；If the restricted information comprising non-CRE and CRE measurement subframes performs 4021b, 4021c is otherwise performed；
Non- CRE subframes and CRE subframes are added measurement subframe list, and mark measurement subframe respectively by 4021b, user terminal CRE be identified as non-CRE measurement subframe and CRE measurement subframes；
4021c, all subframes are added measurement subframe list by user terminal, and identifies measurement subframe CRE be identified as non-CRE measurement subframe.
Exemplarily, can pass through in RRC connection reconfiguration messages in MeasObjectEUTRA items MeasSubframePatternNeigh-r10 items include the restricted information of non-CRE measurement subframes, increase newly MeasCRESubframePatternNeigh-r11 items include the restricted information of CRE measurement subframes, and user terminal is according to two species The restricted information of the measurement subframe of type, the subframe position for needing to be detected in two types is obtained respectively.
User terminal measures the restricted information of subframe according to the non-CRE and CRE included in RRC connection reconfiguration messages, raw Into the list of measurement subframe can be as shown in table 1：
Table 1
4022, the limitation that user terminal measures cell according to the non-CRE and CRE included in RRC connection reconfiguration messages is believed Breath, generation CRE measurement cell lists and non-CRE measurement cell lists；
With continued reference to shown in Fig. 7, according to the inventive method embodiment specific example, the operation of above-described embodiment In 4022, user terminal measures the restricted information of cell, generation according to the non-CRE and CRE included in RRC connection reconfiguration messages CRE measures cell list and non-CRE measurement cell lists, can specifically realize in the following way：
Whether the limitation of non-CRE and CRE measurement cell is included in 4022a user terminals identification RRC connection reconfiguration messages Information；If including the restricted information of non-CRE and CRE measurement cells, 4022b is performed；Otherwise, 4022c is performed；
The CRE for allowing measurement is measured cell ID and is separately added into non-CRE measurement cell IDs by 4022b user terminals CRE and non-CRE measurement cell lists；
All cell IDs are added non-CRE and measure cell list by 4022c.
In 4023 operation, user terminal is carried out adjacent with frequency for CRE measurement cell lists using interference cancellation algorithm Cell measurement, cell list is measured for non-CRE, and co-frequency neighbor cell measurement is carried out using correlation detection principle.Interference, which eliminates, calculates Method can also be successive interference cancellation（Successive Interference Cancellation, SIC）Algorithm.
Exemplarily, can pass through in RRC connection reconfiguration messages in MeasObjectEUTRA items MeasSubframeCellList items include non-CRE measurement cell informations, and newly-increased measCRESubframeCellList items include CRE measures cell information.
User terminal will allow non-CRE and CRE measurement cell difference according to the restricted information of two kinds of measurement cell Cell list to be measured is added, for example, setting up cell list A and cell list B：
Cell list A-include the cell ID that non-CRE to be measured measures cell；
Cell list B-include the cell ID that CRE to be measured measures cell；
Otherwise, whole cells are thought it is that non-CRE cells add cell list A to be measured.
4023, user terminal measures cell list according to measurement subframe list and CRE, is carried out using interference cancellation algorithm same Frequency adjacent district measures；And cell list is measured according to measurement subframe list and non-CRE, carried out using correlation detection principle adjacent with frequency Cell measurement.
Shown in Figure 8, Fig. 8 shows that the method for long-term evolving network co-frequency neighbor cell measurement provided by the present invention is another Kind applies the schematic flow sheet of example.According to the inventive method embodiment specific example, user terminal identifies the son in response CRE measurements are triggered on frame, it is small according to measurement subframe list and CRE measurements to perform user terminal in the operation 4023 of above-described embodiment Area's list, the operation of co-frequency neighbor cell measurement is carried out using interference cancellation algorithm.Compared to Fig. 6,4023 in the embodiment Operation can specifically install following methods realization：
4023a；User terminal identifies whether to have completed in CRE measurement cell lists, such as the cell list B of above-mentioned example In, the measurement of CRE measurement cells corresponding to each CRE measurement cell IDs；
4023b；Measurement in response to not completing CRE measurement cells corresponding to each CRE measurement cell IDs, user are whole CRE measurement cells corresponding to the unmeasured CRE measurements cell ID of end selection one；
4023c user terminals are identified as the son corresponding to the sequence number of CRE measurement subframes according to measurement subframe list in CRE On frame, using the pilot frequency information of interference cancellation algorithm measurement CRE measurement cells；
4023c ' user terminals measure the synchronous channel information of cell using interference cancellation algorithm detection CRE.
Synchronous channel information can include synchronous channel information primary synchronization channel（PSS）With auxiliary synchronization channel（SSS）.Pilot tone Information includes the signal intensity and signal quality of pilot signal, specifically, includes the signal intensity and signal quality of pilot signal Specifically include pilot signal strength（RSRP）, pilot signal quality（RSRP）, pilot signal and interference strength ratio Synchronizing signal intensity（SCH_RP）And synchronizing signal and interference strength ratio（SCH）Deng.
According to the inventive method embodiment specific example, this method can also include：
Whether 4023d, the synchronous channel information and pilot frequency information of identification CRE measurement cells meet that reporting for CRE cells will Ask；What synchronous channel information and pilot frequency information in response to CRE measurement cells met CRE cells reports requirement, performs 4023e's Operation；Otherwise, return to perform 4023a user terminals and re-execute and identify whether to have completed each in CRE measurement cell lists The measurement operation of CRE measurement cells corresponding to CRE measurement cell IDs.
Specifically whether meet CRE cells reports requirement to report requirement according to as defined in 3GPP standards.For example, judge Pilot signal strength（RSRP）, pilot signal quality（RSRP）, pilot signal and interference strength ratioSynchronizing signal Intensity（SCH_RP）With synchronizing signal and interference strength ratio（SCH）Whether meet to report requirement as defined in 3GPP standards.
CRE measurement cell IDs are added and treat re-selecting cell list by 4023e, user terminal.
Similarly, shown in Figure 9, Fig. 9 shows long-term evolving network co-frequency neighbor cell measurement provided by the present invention Method another apply the schematic flow sheet of example.According to the inventive method embodiment specific example, user terminal identification exists Non- CRE measurement is triggered in the subframe of response, performs in the operation 4023 of above-described embodiment user terminal according to measurement subframe list Cell list is measured with non-CRE, the operation of co-frequency neighbor cell measurement is carried out using correlation detection principle.It can specifically install following Method is realized：
4023f；User terminal identifies whether to have completed in non-CRE measurements cell list, such as the cell row of above-mentioned example In table B, the measurement of non-CRE measurements cell corresponding to each non-CRE measurements cell ID；
4023g；Measurement in response to not completing non-CRE measurements cell corresponding to each non-CRE measurements cell ID, is used Family terminal selects non-CRE measurements cell corresponding to a unmeasured non-CRE measurements cell ID；
4023h user terminals are identified as corresponding to the sequence number of non-CRE measurements subframe according to measurement subframe list in CRE In subframe, the pilot frequency information of non-CRE measurements cell is measured using correlation detection principle；
4023h ' user terminals detect the synchronous channel information of non-CRE measurements cell using correlation detection principle.
Synchronous channel information can include synchronous channel information primary synchronization channel（PSS）With auxiliary synchronization channel（SSS）.Pilot tone Information includes the signal intensity and signal quality of pilot signal, specifically, includes the signal intensity and signal quality of pilot signal Specifically include pilot signal strength（RSRP）, pilot signal quality（RSRP）, pilot signal and interference strength ratio Synchronizing signal intensity（SCH_RP）And synchronizing signal and interference strength ratio（SCH）Deng.
According to the inventive method embodiment specific example, this method can also include：
Whether 4023i, the synchronous channel information and pilot frequency information for identifying non-CRE measurements cell meet the upper of non-CRE cells Report requires；What synchronous channel information and pilot frequency information in response to non-CRE measurement cells met non-CRE cells reports requirement, holds Row 4023j operation；Otherwise, return and perform 4023f, user terminal, which re-executes, to be identified whether to have completed non-CRE measurements cell The measurement operation of non-CRE measurements cell corresponding to the non-CRE measurements cell ID of each in list.
Specifically whether meet non-CRE cells reports requirement to report requirement according to as defined in 3GPP standards.For example, sentence Disconnected pilot signal strength（RSRP）, pilot signal quality（RSRP）, pilot signal and interference strength ratioSynchronous letter Number intensity（SCH_RP）With synchronizing signal and interference strength ratio（SCH）Whether meet to report as defined in 3GPP standards and want Ask.
Non- CRE measurement cell IDs are added and treat re-selecting cell list by 4023j, user terminal.
Shown in Figure 10, Figure 10 shows the method for long-term evolving network co-frequency neighbor cell measurement provided by the present invention again A kind of schematic flow sheet for applying example.It is small to measuring using the corresponding detection algorithm of base station type 402 in the various embodiments described above After area carries out co-frequency neighbor cell measurement, this method also includes：
1001, user terminal to macro base station configure the confirmation of completion, can specifically pass through RRCConnectionReconfigurationComplete signalings send configuration completes the message confirmed；
1002, user terminal reports the message of measurement to macro base station, can specifically be sent and matched somebody with somebody by MeasResults signalings Put the message for completing to confirm；
1003, the metrical information in response to receiving user terminal transmission, macro base station is reconfigured by new RRC connections to disappear Cease to user terminal send configuration cell handover information.
Shown in Figure 11, what this illustrated a kind of long-term evolving network co-frequency neighbor cell measurement provided by the present invention is System, including：
Macro base station 1101, for sending Radio Resource connection control RRC connection reconfiguration messages to user terminal, RRC connects The cell ID that adjacent cell is included in reconfiguration message, and the base station type of corresponding adjacent cell are connect, base station type includes CRE Base station or non-CRE base stations；
User terminal 1102, for the cell ID according to the adjacent cell included in RRC connection reconfiguration messages, and it is right The base station type for the adjacent cell answered, using adjacent cell as measurement cell, using the corresponding detection algorithm of base station type to measurement Cell carries out co-frequency neighbor cell measurement.
One specific example of system according to the invention embodiment, user terminal 1102, is additionally operable to using base station type Before corresponding detection algorithm carries out co-frequency neighbor cell measurement to measurement cell, identify and included in RRC connection reconfiguration messages Adjacent cell whether have the adjacent cells of CRE base stations；If not including the adjacent cell of CRE base stations in RRC connection reconfiguration messages, use The received signal strength and received signal quality of the pilot signal of correlation detection principle measurement serving cell；User terminal is according to leading The received signal strength and received signal quality of frequency signal, the received signal strength and received signal quality for calculating serving cell are The no measuring condition for meeting co-frequency neighbor cell measurement；Testing conditions in response to meeting co-frequency neighbor cell measurement, execution use base The corresponding detection algorithm of type of standing carries out the operation of co-frequency neighbor cell measurement to measurement cell.If RRC connection reconfiguration messages In include the adjacent cells of CRE base stations, perform measurement cell is carried out using base station type corresponding detection algorithm it is adjacent small with frequency The operation of region measurement.
One specific example of system according to the invention embodiment, user terminal 1102 are specifically used for according to RRC connections weight The restricted information of non-CRE and CRE the measurement subframe included in configuration message, generation measurement subframe list, wherein, measurement subframe row Table includes the sequence number of measurement subframe, and the CRE marks of measurement subframe corresponding to sequence number, and CRE marks include non-CRE measurements Frame, CRE measurement subframes；According to the restricted information of non-CRE and CRE the measurement cell included in RRC connection reconfiguration messages, generation CRE measures cell list and non-CRE measurement cell lists；According to measurement subframe list and CRE measurement cell lists, interference is used Elimination algorithm carries out the cell measurement of co-frequency neighbor cell measurement, i.e. synchronizing channel and pilot signal；And according to measurement subframe row Table and non-CRE measurement cell lists, co-frequency neighbor cell measurement, i.e. synchronizing channel and pilot signal are carried out using correlation detection principle Cell measurement.
One specific example of system according to the invention embodiment, user terminal 1102 are specifically used for identification RRC connection weights Configure the restricted information that non-CRE and CRE measurement subframes whether are included in message；If include the limitation of non-CRE and CRE measurement subframes Information, non-CRE subframes and CRE subframes are added into measurement subframe list, and the CRE of mark measurement subframe is identified as CRE surveys respectively Quantum frame and non-CRE measurement subframes；Otherwise, measurement subframe list is added using all subframes as non-CRE subframes, and identifies measurement The CRE of subframe is identified as non-CRE measurements subframe.
One specific example of system according to the invention embodiment, user terminal 1102 are specifically used for identification RRC connection weights Configure the restricted information that non-CRE and CRE measurement cells whether are included in message；If include the limitation of non-CRE and CRE measurement cells Information, the CRE for allowing measurement is measured into cell ID respectively and non-CRE measurement cell IDs are separately added into CRE and non-CRE and measured Cell list；Otherwise, cell ID is added into non-CRE and measures cell list.
One specific example of system according to the invention embodiment, user terminal 1102 are specifically used for identifying whether to have completed The measurement of CRE measurement cells corresponding to each CRE measurement cell IDs in CRE measurement cell lists；It is every in response to not completing The measurement of CRE measurement cells corresponding to one CRE measurement cell ID, selects a unmeasured CRE measurements cell ID pair The CRE measurement cells answered；According to measurement subframe list, it is identified as in CRE in the subframe corresponding to the sequence number of CRE measurement subframes, Using the pilot frequency information of interference cancellation algorithm measurement CRE measurement cells；Using the same of interference cancellation algorithm detection CRE measurement cells Walk channel information.
One specific example of system according to the invention embodiment, user terminal 1102 are additionally operable to small in response to CRE measurements What the synchronous channel information and pilot frequency information in area met CRE cells reports requirement, and CRE measurement cell IDs are added and treat that gravity treatment is small Area's list；Otherwise, re-execute and identify whether to have completed each CRE measurements cell ID correspondence in CRE measurement cell lists CRE measurement cell measurement operation.
One specific example of system according to the invention embodiment, user terminal 1102 specifically identify whether to have completed non- The measurement of non-CRE measurements cell corresponding to the non-CRE measurements cell ID of each in CRE measurement cell lists；In response to not complete Into the measurement of non-CRE measurements cell corresponding to each non-CRE measurements cell ID, a unmeasured non-CRE measurement is selected Non- CRE measurements cell corresponding to cell ID；According to measurement subframe list, the sequence number institute of non-CRE measurements subframe is identified as in CRE In corresponding subframe, the pilot frequency information of non-CRE measurements cell is measured using correlation detection principle；Detected using correlation detection principle The synchronous channel information of non-CRE measurements cell.
One specific example of system according to the invention embodiment, user terminal 1102 are additionally operable to measure in response to non-CRE What the synchronous channel information and pilot frequency information of cell met non-CRE cells reports requirement, and non-CRE measurement cell IDs are added and treated Re-selecting cell list；Otherwise, re-execute that to identify whether to have completed the non-CRE measurements of each in non-CRE measurements cell list small The measurement operation of non-CRE measurements cell corresponding to area's mark.
System according to the invention the various embodiments described above, user terminal 1102 are also used for the corresponding detection of base station type After algorithm carries out co-frequency neighbor cell measurement to measurement cell, confirmation message is completed to macro base station send configuration；To macro base station report Accuse the message of measurement.Macro base station 1101 is additionally operable to the metrical information sent in response to receiving shown user terminal, whole to user Hold send configuration cell handover information.
So far, be described in detail according to the present invention a kind of long-term evolving network co-frequency neighbor cell measure method with System.In order to avoid the design of the masking present invention, some details known in the field are not described.Those skilled in the art's root According to above description, completely it can be appreciated how implementing technical scheme disclosed herein.
Each embodiment is described by the way of progressive in this specification, what each embodiment stressed be and its The difference of its embodiment, same or analogous part cross-reference between each embodiment.For system embodiment For, because it is substantially corresponding with embodiment of the method, so description is fairly simple, referring to the portion of embodiment of the method in place of correlation Defend oneself bright.
The method and system of the long-term evolving network co-frequency neighbor cell measurement of the present invention may be achieved in many ways.Example Such as, the long-term evolving network of the present invention can be realized by any combinations of software, hardware, firmware or software, hardware, firmware The method and system of co-frequency neighbor cell measurement.The said sequence of the step of for methods described is merely to illustrate, this hair The step of bright method, is not limited to order described in detail above, unless specifically stated otherwise.In addition, in some implementations In example, the present invention can be also embodied as recording program in the recording medium, these programs include being used to realize according to the present invention Method machine readable instructions.Thus, the present invention also covering storage is used for the note for performing the program of the method according to the invention Recording medium.
Although some specific embodiments of the present invention are described in detail by example, the skill of this area Art personnel it should be understood that above example merely to illustrating, the scope being not intended to be limiting of the invention.The skill of this area Art personnel to above example it should be understood that can modify without departing from the scope and spirit of the present invention.This hair Bright scope is defined by the following claims.

Claims (18)

  1. A kind of 1. method of long-term evolving network co-frequency neighbor cell measurement, it is characterised in that methods described includes：
    Macro base station sends Radio Resource connection control RRC connection reconfiguration messages to user terminal, and the RRC connections, which reconfigure, to disappear Include the cell ID of adjacent cell, and the base station type of corresponding adjacent cell in breath, the base station type include CRE base stations or The non-CRE base stations of person；
    The user terminal is and corresponding according to the cell ID of the adjacent cell included in the RRC connections reconfiguration message The base station type of adjacent cell, using the adjacent cell as measurement cell, use the corresponding detection algorithm pair of the base station type The measurement cell carries out co-frequency neighbor cell measurement；
    Co-frequency neighbor cell is carried out to the measurement cell in the detection algorithm corresponding using the base station type and measures it Before, methods described also includes：
    The user terminal identifies whether the adjacent cell included in the RRC connections reconfiguration message has the adjacent cell of CRE base stations；
    If not including the adjacent cell of CRE base stations in the RRC connections reconfiguration message, the user terminal is calculated using coherent detection The received signal strength and received signal quality of the pilot signal of method measurement serving cell；The user terminal is according to the pilot tone The received signal strength and received signal quality of signal, whether calculate the received signal strength of serving cell and received signal quality Meet the measuring condition of co-frequency neighbor cell measurement；Testing conditions in response to meeting co-frequency neighbor cell measurement, perform the use The cell measurement that the corresponding detection algorithm of the base station type synchronizes channel and pilot signal to the measurement cell is grasped Make；
    If including the adjacent cell of CRE base stations in the RRC connections reconfiguration message, the user terminal is performed described in the use The corresponding detection algorithm of base station type synchronizes channel and the cell measurement operations of pilot signal to the measurement cell；
    Wherein, meeting the measuring condition of co-frequency neighbor cell measurement is：
    Srxlev>SIntraSearchPAnd Squal>SIntraSearchQ, wherein SIntraSearchPFor the S of co-frequency cell measurementrxlevThresholding, use Family terminal is obtained by system message；SIntraSearchQFor the S of co-frequency neighbor cell measurementqualThresholding, user terminal are disappeared by system Breath obtains；SrxlevAnd SqualThe received signal strength and received signal quality of respectively described serving cell.
  2. 2. according to the method for claim 1, it is characterised in that the detection algorithm corresponding using the base station type Channel and the cell measurement of pilot signal are synchronized to the measurement cell, specifically included：
    The limitation that the user terminal measures subframe according to the non-CRE and CRE included in the RRC connections reconfiguration message is believed Breath, generation measurement subframe list, wherein, the sequence number for measuring subframe list and including measurement subframe, and the sequence number are corresponding Measurement subframe CRE marks, CRE mark includes non-CRE measurements subframe, CRE measures subframe；
    User terminal measures the restricted information of cell according to the non-CRE and CRE included in the RRC connections reconfiguration message, raw Into CRE measurement cell lists and non-CRE measurement cell lists；
    The user terminal measures cell list according to the measurement subframe list with the CRE, is entered using interference cancellation algorithm The cell measurement of row synchronizing channel and pilot signal；And
    The user terminal measures cell list according to the measurement subframe list and the non-CRE, uses correlation detection principle Synchronize channel and the cell measurement of pilot signal.
  3. 3. according to the method for claim 2, it is characterised in that the user terminal reconfigures according to the RRC connections to disappear The restricted information of non-CRE and CRE the measurement subframe included in breath, generation measurement subframe list, is specifically included：
    The user terminal identifies the limitation letter that non-CRE and CRE measurement subframes whether are included in the RRC connections reconfiguration message Breath；
    If including the restricted information of non-CRE and CRE measurement subframes, non-CRE subframes and CRE subframes are added and surveyed by the user terminal Quantum frame list, and the CRE of mark measurement subframe is identified as non-CRE measurement subframes and CRE measurement subframes respectively；Otherwise, by institute There is subframe to add measurement subframe list as non-CRE subframes, and the CRE for identifying measurement subframe is identified as non-CRE measurements subframe.
  4. 4. according to the method for claim 3, it is characterised in that user terminal is according in the RRC connections reconfiguration message Comprising non-CRE and CRE measurement cell restricted information, generation CRE measurement cell list and non-CRE measurement cell lists, tool Body includes：
    The user terminal identifies the limitation letter that non-CRE and CRE measurement cells whether are included in the RRC connections reconfiguration message Breath；
    If including the restricted information of non-CRE and CRE measurement cells, the CRE for allowing measurement is measured cell mark by the user terminal Know and be separately added into CRE and non-CRE measurement cell lists with non-CRE measurement cell IDs；Otherwise, all cell IDs are added Enter non-CRE measurements cell list.
  5. 5. according to the method for claim 4, it is characterised in that the user terminal is according to the measurement subframe list and institute CRE measurement cell lists are stated, channel and the cell measurement of pilot signal is synchronized using interference cancellation algorithm, specifically includes：
    It is corresponding that the user terminal identifies whether to have completed each CRE measurement cell IDs in the CRE measurements cell list CRE measurement cell measurement；
    Measurement in response to not completing CRE measurement cells corresponding to each CRE measurement cell IDs, the user terminal selecting CRE measurement cells corresponding to one unmeasured CRE measurements cell ID；
    The user terminal is identified as the subframe corresponding to the sequence number of CRE measurement subframes according to the measurement subframe list in CRE On, using the pilot frequency information of the interference cancellation algorithm measurement CRE measurements cell；
    The user terminal detects the synchronous channel information of the CRE measurements cell using interference cancellation algorithm.
  6. 6. according to the method for claim 5, it is characterised in that methods described also includes：
    Synchronous channel information and pilot frequency information in response to CRE measurement cells meet the requirement that reports of CRE cells, the use CRE measurement cell IDs are added and treat re-selecting cell list by family terminal；Otherwise, the user terminal, which re-executes identification, is The no measurement behaviour for having completed CRE measurement cells corresponding to each CRE measurement cell IDs in the CRE measurements cell list Make.
  7. 7. according to the method for claim 4, it is characterised in that the user terminal is according to the measurement subframe list and institute Non- CRE measurements cell list is stated, channel and the cell measurement of pilot signal are synchronized using correlation detection principle, specific bag Include：
    The user terminal identifies whether to have completed each non-CRE measurements cell ID in the non-CRE measurements cell list The measurement of corresponding non-CRE measurements cell；
    Measurement in response to not completing non-CRE measurements cell corresponding to each non-CRE measurements cell ID, the user terminal Non- CRE measurements cell corresponding to the unmeasured non-CRE measurements cell ID of selection one；
    The user terminal is identified as the son corresponding to the sequence number of non-CRE measurements subframe according to the measurement subframe list in CRE On frame, the pilot frequency information of cell is measured using the correlation detection principle measurement non-CRE；
    The user terminal measures the synchronous channel information of cell using the correlation detection principle detection non-CRE.
  8. 8. according to the method for claim 7, it is characterised in that methods described also includes：
    Synchronous channel information and pilot frequency information in response to the non-CRE measurements cell meet the requirement that reports of non-CRE cells, institute State user terminal and re-selecting cell list is treated into the non-CRE measurements cell ID addition；Otherwise, the user terminal re-executes It is small to identify whether to have completed non-CRE measurements corresponding to each non-CRE measurements cell ID in the non-CRE measurements cell list The measurement operation in area.
  9. 9. according to the method described in claim 1 to 8 any one, it is characterised in that corresponding using the base station type After detection algorithm carries out co-frequency neighbor cell measurement to the measurement cell, methods described also includes：
    The user terminal completes confirmation message to the macro base station send configuration；
    The user terminal reports the message of measurement to the macro base station；
    The metrical information sent in response to receiving shown user terminal, shown macro base station are small to the user terminal send configuration Area's handover information.
  10. 10. a kind of system of long-term evolving network co-frequency neighbor cell measurement, it is characterised in that the system includes：
    Macro base station, for sending Radio Resource connection control RRC connection reconfiguration messages, the RRC connections weight to user terminal The cell ID of adjacent cell is included in configuration message, and the base station type of corresponding adjacent cell, the base station type include CRE Base station or non-CRE base stations；
    User terminal, for the cell ID according to the adjacent cell included in the RRC connections reconfiguration message, and it is corresponding The base station type of adjacent cell, using the adjacent cell as measurement cell, use the corresponding detection algorithm pair of the base station type The measurement cell carries out co-frequency neighbor cell measurement；
    The user terminal, it is additionally operable to carrying out together the measurement cell using the corresponding detection algorithm of the base station type Before the measurement of frequency adjacent district, identify whether the adjacent cell included in the RRC connections reconfiguration message has the adjacent small of CRE base stations Area；
    It is small using correlation detection principle measurement service if not including the adjacent cell of CRE base stations in the RRC connections reconfiguration message The received signal strength and received signal quality of the pilot signal in area；The user terminal is believed according to the reception of the pilot signal Number intensity and received signal quality, calculate the received signal strength of serving cell and received signal quality whether meet it is adjacent small with frequency The measuring condition of region measurement；Testing conditions in response to meeting co-frequency neighbor cell measurement, execution is described to use the base station type Corresponding detection algorithm synchronizes the operation of channel and the cell measurement of pilot signal to the measurement cell；
    If including the adjacent cell of CRE base stations in the RRC connections reconfiguration message, perform described relative using the base station type The detection algorithm answered synchronizes the operation of channel and the cell measurement of pilot signal to the measurement cell；
    Wherein, meeting the measuring condition of co-frequency neighbor cell measurement is：
    Srxlev>SIntraSearchPAnd Squal>SIntraSearchQ, wherein SIntraSearchPFor the S of co-frequency cell measurementrxlevThresholding, use Family terminal is obtained by system message；SIntraSearchQFor the S of co-frequency neighbor cell measurementqualThresholding, user terminal are disappeared by system Breath obtains；SrxlevAnd SqualThe received signal strength and received signal quality of respectively described serving cell.
  11. 11. system according to claim 10, it is characterised in that the user terminal, specifically for being connected according to the RRC The restricted information of non-CRE and CRE the measurement subframe included in reconfiguration message is connect, generation measures subframe list, wherein, the survey The list of quantum frame includes the sequence number of measurement subframe, and the CRE marks of measurement subframe corresponding to the sequence number, the CRE marks It is also non-CRE measurements subframe to measure subframe including non-CRE measurements subframe, CRE, be CRE measurements subframe；
    According to the restricted information of non-CRE and CRE the measurement cell included in the RRC connections reconfiguration message, generation CRE measurements Cell list and non-CRE measurement cell lists；
    According to measurement subframe list and the CRE measurement cell list, using interference cancellation algorithm synchronize channel and The cell measurement of pilot signal；And
    According to the measurement subframe list and the non-CRE measurements cell list, channel is synchronized using correlation detection principle With the cell measurement of pilot signal.
  12. 12. system according to claim 11, it is characterised in that the user terminal, specifically for identifying that the RRC connects Connect the restricted information that non-CRE and CRE measurement subframes whether are included in reconfiguration message；If include non-CRE and CRE measurement subframes Restricted information, non-CRE subframes and CRE subframes are added into measurement subframe list, and respectively the CRE of mark measurement subframe be identified as it is non- CRE measures subframe and CRE measurement subframes；Otherwise, measurement subframe list is added using all subframes as non-CRE subframes, and identified The CRE of measurement subframe is identified as non-CRE measurements subframe.
  13. 13. system according to claim 12, it is characterised in that the user terminal, specifically for identifying that the RRC connects Connect the restricted information that non-CRE and CRE measurement cells whether are included in reconfiguration message；If include non-CRE and CRE measurement cells Restricted information, the CRE for allowing measurement is measured into cell ID respectively and is separately added into CRE and non-CRE with non-CRE measurement cell IDs Measure cell list；Otherwise, the cell ID is added into non-CRE and measures cell list.
  14. 14. system according to claim 13, it is characterised in that the user terminal, it is complete specifically for identifying whether The measurement of CRE measurement cells corresponding to each CRE measurements cell ID in cell list is measured into the CRE；
    Measurement in response to not completing CRE measurement cells corresponding to each CRE measurement cell IDs, selection one are unmeasured CRE measurement cells corresponding to CRE measurement cell IDs；
    According to the measurement subframe list, it is identified as in CRE in the subframe corresponding to the sequence number of CRE measurement subframes, using interference Elimination algorithm measures the pilot frequency information of the CRE measurements cell；
    The synchronous channel information of the CRE measurements cell is detected using interference cancellation algorithm.
  15. 15. system according to claim 14, it is characterised in that the user terminal, be additionally operable to survey in response to the CRE Measure the synchronous channel information of cell and what pilot frequency information met CRE cells reports requirements, the CRE is measured into cell ID addition Treat re-selecting cell list；Otherwise, re-execute and identify whether to have completed each CRE measurements in the CRE measurements cell list CRE corresponding to cell ID measures the measurement operation of cell.
  16. 16. system according to claim 13, it is characterised in that the user terminal, it is complete specifically for identifying whether The measurement of non-CRE measurements cell corresponding to each non-CRE measurements cell ID into the non-CRE measurements cell list；
    Measurement in response to not completing non-CRE measurements cell corresponding to each non-CRE measurements cell ID, selects one and does not survey Non- CRE measurements cell corresponding to the non-CRE measurement cell IDs of amount；
    According to the measurement subframe list, it is identified as in CRE in the subframe corresponding to the sequence number of non-CRE measurements subframe, using phase Close the pilot frequency information of the detection algorithm measurement non-CRE measurements cell；
    Using the synchronous channel information of the correlation detection principle detection non-CRE measurements cell.
  17. 17. system according to claim 16, it is characterised in that the user terminal, be additionally operable in response to the non-CRE Measure the synchronous channel information of cell and what pilot frequency information met non-CRE cells reports requirements, by the non-CRE measurements cell mark Know addition and treat re-selecting cell list；Otherwise, re-execute and identify whether to have completed each in the non-CRE measurements cell list The measurement operation of non-CRE measurements cell corresponding to non-CRE measurements cell ID.
  18. 18. according to the system described in claim 10 to 17 any one, the user terminal, the base station class is also used for It is complete to the macro base station send configuration after the corresponding detection algorithm of type carries out co-frequency neighbor cell measurement to the measurement cell Into confirmation message；To the message of macro base station report measurement；
    The macro base station, the metrical information sent in response to receiving shown user terminal is additionally operable to, is sent out to the user terminal Cell handover information is put in delivery.
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Publication number Priority date Publication date Assignee Title
KR102116843B1 (en) * 2015-10-21 2020-06-01 텔레호낙티에볼라게트 엘엠 에릭슨(피유비엘) Methods, network nodes and wireless device for processing access information
EP3513591B1 (en) 2016-09-29 2022-11-30 Huawei Technologies Duesseldorf GmbH Sidelink-assisted handover in cellular networks
BR112019026136A2 (en) 2017-06-16 2020-06-30 Guangdong Oppo Mobile Telecommunications Corp., Ltd. wireless communication method and terminal device
WO2019148313A1 (en) * 2018-01-30 2019-08-08 北京小米移动软件有限公司 Network management method, device, system and computer readable storage medium

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102075983A (en) * 2010-12-29 2011-05-25 大唐移动通信设备有限公司 Measurement restriction information processing method and equipment
CN102196415A (en) * 2011-05-10 2011-09-21 新邮通信设备有限公司 Method and equipment for triggering interference coordination of terminal in idle mode

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102075983A (en) * 2010-12-29 2011-05-25 大唐移动通信设备有限公司 Measurement restriction information processing method and equipment
CN102196415A (en) * 2011-05-10 2011-09-21 新邮通信设备有限公司 Method and equipment for triggering interference coordination of terminal in idle mode

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
"Discussions on interference cancellation for enhanced non-CA-based ICIC";Samsung：;《3GPP TSG-RAN WG1#68 meeting R1-120168》;20120210;第2-3节 *
"Evolved Universal Terrestrial Radio Access (E-UTRA);Radio Resource Control (RRC);Protocol specification(Release 11)";3GPP TSGRAN：;《3GPP TS 36.331 V11.1.0》;20120930;全文 *
"On Signaling Assistance for Cell Detection of FeICIC";China Telecom：;《3GPP TSG RAN WG1 Meeting #68bis R1-121131》;20120330;第2-3节 *

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