CN103517314A - Wireless resource management method, base station and terminal thereof - Google Patents

Wireless resource management method, base station and terminal thereof Download PDF

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Publication number
CN103517314A
CN103517314A CN201210215506.5A CN201210215506A CN103517314A CN 103517314 A CN103517314 A CN 103517314A CN 201210215506 A CN201210215506 A CN 201210215506A CN 103517314 A CN103517314 A CN 103517314A
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China
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community
advent
time
sub
reference signal
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刘劲楠
冯淑兰
李亚娟
时洁
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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Priority to CN201210215506.5A priority Critical patent/CN103517314A/en
Priority to PCT/CN2013/074931 priority patent/WO2014000505A1/en
Publication of CN103517314A publication Critical patent/CN103517314A/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W64/00—Locating users or terminals or network equipment for network management purposes, e.g. mobility management
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S5/00—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations
    • G01S5/02—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations using radio waves
    • G01S5/10—Position of receiver fixed by co-ordinating a plurality of position lines defined by path-difference measurements, e.g. omega or decca systems

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Position Fixing By Use Of Radio Waves (AREA)

Abstract

The invention is suitable for the communication field and provides a wireless resource management method and an apparatus. The method comprises the following steps that a receiving terminal UE sends a wireless resource control RRC signaling after completing reference signal arrival time difference RSTD measurement in one or more observation and positioning reference signal positioning measurement opportunities, wherein the RRC signaling comprises an RSTD measurement result in the one or more positioning reference signal positioning measurement opportunities; the RSTD measurement result is expressed as reference signal subframe arrival time TOA of a plurality of cells or the reference signal arrival time difference RSTD of the plurality of cells relatively to positioning reference cell arrival time; according to the reference signal subframe arrival time of the plurality of cells or the reference signal arrival time difference, wireless resource management is performed. By using a technical scheme provided in an embodiment of the invention, an advantage of reducing time delay is possessed.

Description

Radio resource management method, base station and terminal
Technical field
The invention belongs to the communications field, relate in particular to a kind of radio resource management method, base station and terminal.
Background technology
The positional information of terminal can be applied to RRM, the Radio Resource that assistant service BTS management terminal is used.For example, according to positional information, estimate that terminal, to each neighbor base stations distance (D), estimates propagation delay (PD), estimating path loss (PL), and up pre-set time (TA) etc. parameter, for auxiliary RRM.Terminal is also subscriber equipment (UE).
Current 3GPP(third generation partner program) the LTE(Long Term Evolution of definition) location protocol LPP(LTE Positioning Protocol), based on OTDOA(Observed Time Difference of Arrival, observe arriving the time difference) measuring process is as follows:
It can be dissimilar transfer point that each community sends location reference signals (PRS) ，Qi small area transmitting apparatus, comprises macro base station Macro ，Wei base station Micro, femto base station Pico, remote radio RRH;
OTDOA is measured to request to the service terminal centre of location and OTDOA assistance messages sends to terminal;
Terminal starts RSTD(Reference Signal Time Difference after receiving OTDOA assistance messages, and reference signal is poor the time of advent) measure,
Terminal receives the RSTD of PRS signal by measuring in one or more PRS localization machine meeting (positioning occasion), and reports RSTD measurement result in calling time in regulation maximum.The service terminal centre of location positions calculating according to RSTD.
But the measurement RSTD report of OTDOA location is to pass through the service terminal centre of location by LPP layer.Therefore serving BS is not resolved LPP layer signaling, but passes through the service terminal centre of location.
The service terminal centre of location calculates UE position according to RSTD, the position of the terminal that then RRM need to calculate according to the service terminal centre of location, and the position calculation of each base station goes out terminal to the distance of neighbor base stations i D i = ( x UE - x e NB i ) 2 + ( y UE - y eNB i ) 2 , X wherein uE, Y uEbe respectively terminal at the coordinate of X-axis and Y-axis, X eNBi, Y eNBibe respectively eNB iat the coordinate of X-axis and Y-axis, terminal is to the estimation propagation delay PD of neighbor base stations i i=D i/ c, terminal is to the estimating path loss PL of neighbor base stations i i=α 1log 10(D i)+α 2log 10(fc i)+α 3, wherein c is the light velocity, α 1for distance coefficient, α 2for carrier frequency coefficient, α 3environment path loss constant, fc ifor carrier frequency.
According to D icarry out RRM, have a fixed response time, comprise the propagation delay time that is transferred to serving BS from UE, serving BS is transferred to the propagation delay time of the service terminal centre of location, the computing time delay of the service terminal centre of location, the service terminal centre of location arrives the time delay of serving BS, and RRM computing time delay etc., cause and utilize the auxiliary RRM time delay of locating information larger.
Summary of the invention
The object of the embodiment of the present invention is to provide a kind of management method of Radio Resource, is intended to reduce the time delay of the auxiliary RRM in location, and more real-time radio resource management method is provided.
On the one hand, the invention provides a kind of
The technical program has avoided serving BS in conventional method to be transferred to the propagation delay time of the service terminal centre of location, the computing time delay of the service terminal centre of location, and the service terminal centre of location, to the time delay of serving BS, realizes more real-time RRM.
Accompanying drawing explanation
Fig. 1 is the flow chart of the management method of a kind of Radio Resource of providing of the specific embodiment of the invention;
Fig. 2 is the architecture of base station schematic diagram that the embodiment of the present invention provides; And
Fig. 3 is the flow chart that the method for RRM is carried out in support base station that the embodiment of the present invention provides;
Fig. 4 is the terminal structure figure schematic diagram that the embodiment of the present invention provides.
Embodiment
In order to make object of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
First, introduce the background that realizes of the specific embodiment of the invention, OTDOA is a kind of method that user of support locates, OTDOA is the method for a kind of user location of standard code, according to the regulation of standard, by OTDOA, can obtain RSTD and the time of advent (Time of Arrival, TOA).In practical operation, above-mentioned TOA is actual is the reference signal subframe time of advent.
Community is to rely on community ID(indications) identify ， community ID and have cell physical layer ID, and cell global ID.Yi Ge base station can comprise a plurality of communities, also can only comprise Yi Ge community.It has been generally acknowledged that macro base station can comprise ，Wei base station, a plurality of community and femto base station coverage less than macro base station, also can comprise a plurality of communities.Macro base station can also connect radio frequency remote equipment by optical fiber, forms cell splitting, and radio frequency remote equipment does not comprise radio resource managing unit.Base station, as macro base station ，Wei base station, femto base station all comprises radio resource managing unit.Between various base stations, adopt x2 interface to communicate.
PRS signal relies on cell physical layer ID to distinguish, and produces the signal of time domain Huo Ma territory quadrature.Terminal is according to the different cell signal of different PRS signal distinguishings.
The specific embodiment of the invention provides a kind of management method of Radio Resource, and the method is carried out by base station eNB, and the method as shown in Figure 1, comprising:
S11, the reception UE reference signal radio resource control RRC signaling that the time of advent, poor RSTD sent after measuring in completing the meeting of one or many location reference signals PRS localization machine, wherein this RRC signaling comprises: the RSTD measurement result in the meeting of one or many PRS localization machine, and described RSTD measurement result is expressed as the reference signal subframe poor RSTD time of advent of a plurality of cell reference signals subframe TOA time of advent or a plurality of communities;
Optionally, above-mentioned RRC signaling can also comprise: the cell ID that RSTD measurement result is corresponding; Certainly in actual conditions, also can not be with cell ID, because can mating the order of Location Request transmission, base station determines the corresponding community of RSTD measurement result.
Because terminal and Serving cell keep descending timing, Serving cell system frame number SFN is known, can obtain serving BS PRS subframe time of advent, the descending timing of the subframe that PRS is corresponding according to OTDOA assistance messages.But the time of advent of Serving cell PRS subframe also can similar neighbor cell, by receiving the time of advent of the more accurate Serving cell of signal acquisition relevant with the local PRS PRS subframe of PRS.Therefore measuring the time of advent of Ge community PRS subframe, is all that the relative time of descending timing of the subframe that relative PRS is corresponding is poor.
M the cell reference signals subframe TOA time of advent, can be expressed as TOA i, i=0,1 ..., M-1;
M-1 the cell reference signals subframe poor RSTD time of advent, can be expressed as RSTD i, i=1 ...., M-1;
RSTD i=TOA i– TOA 0, when serving BS PRS subframe time of advent, adopt the descending timing of the subframe that PRS is corresponding, TOA 0be zero, report RSTD to be equivalent to and report TOA.All take below and report TOA as example.TOA wherein 0represent position reference community, Ye ShiUE Serving cell.
S12, according to the reference signal subframe time of advent of a plurality of communities or reference signal time of advent the poor RRM that carries out.
Due to reference signal subframe time of advent of a plurality of communities or poorly send to base station by RRC signaling, this RRC signaling can be resolved in base station.And carry out relevant radio resource management operations according to the content of this signaling.
The method that the embodiment of the present invention provides is directly TOA or RSTD to be sent to serving BS by RRC signaling, RRM management is directly carried out in base station, reduced like this propagation delay time that is transferred to the service terminal centre of location from UE, the computing time delay of the service terminal centre of location, the service terminal centre of location is to the time delay of serving BS, so it has advantages of that propagation delay time is little.
The base station here may comprise the wireless resource scheduling of managing a plurality of communities, can be macro base station ，Wei base station, femto base station.
In addition, it should be noted that, the technical scheme of the embodiment of the present invention just can be carried out RSTD measurement result and send when completing the meeting of one or many PRS localization machine, and this kind of mode further reduced time delay.
Optionally, above-mentioned RRM comprises following every combination in any: auxiliary described terminal determines that descending assistance multicast communication CoMP measuring assembly, auxiliary described terminal determine whether a plurality of communities of multi-carrier polymerizing CA are applicable to adopting identical up lead TA and determine up high interference indication HII.Certainly, in actual conditions, can also be other RRM, such as community switching etc.
Optionally, when RRM is that while selecting descending CoMP measuring assembly, the implementation method of S12 specifically comprises:
A plurality of cell reference signals subframe is sorted (this sequence can be for from high to low, also can for from low to high) time of advent, finds and meet | t community and k the community of the default thresholding TOA_TH of TOAt – TOAk|<the first, TOA<sub TranNum="123">t</sub>the reference signal subframe time of advent of t community, TOA<sub TranNum="124">k</sub>it is the reference signal subframe time of advent of k community; Determine that individual at least one community to k community of t is (certainly in actual conditions, preferably t is to all communities in k community) transfer point of correspondence is the descending ComP measuring assembly of this UE, wherein TOA_TH can be less than the length of the current Cyclic Prefix in base station.
It should be noted that, because CoMP measuring assembly is only selected in a plurality of communities in the same frequency layer of serving BS management, therefore when being chosen in CoMP measuring assembly, are TOA of transfer point corresponding to a plurality of communities reference signal subframe times of advent of a plurality of communities.Above-mentioned a plurality of community can be according to a plurality of communities on the same frequency layer of the serving BS management of community indications coupling.
The transfer point here refers to macro base station and the radio frequency remote equipment being connected by optical fiber, can be a plurality of radio frequency remote equipments under same macro station or a macro base station and a plurality of radio frequency remote equipment.Wherein radio resource managing unit is positioned at macro base station.
Optionally, when RRM determines for auxiliary described terminal whether a plurality of communities of multi-carrier polymerizing CA are applicable to adopting identical up lead TA, the implementation method of S12 specifically comprises:
Obtain the time difference that each cell of origin in a plurality of communities and Serving cell send location reference signals PRS or cell reference signals CRS; Poor absolute value is no more than the second community of presetting thresholding PD_TH according to the time difference of each cell of origin in described a plurality of communities and Serving cell transmission location reference signals PRS or cell reference signals CRS, to determine minizone propagation delay, | and TOA<sub TranNum="129">i</sub>-Δ PRS<sub TranNum="130">i</sub>(TOA<sub TranNum="131">k</sub>-Δ PRS<sub TranNum="132">k</sub>) |<PD_TH, the community of determining is applicable to adopting identical up lead TA, and the representative value that the second thresholding can be got is 16Ts, Ts=1/307200s.Above-mentioned Δ PRS<sub TranNum="133">i</sub>be the time difference that i community and Serving cell send location reference signals PRS or cell reference signals CRS, Δ PRSk is the time difference that k community and Serving cell send location reference signals PRS or cell reference signals CRS.
It should be noted that, because up group is in advance selected in a plurality of communities in the different same frequency layers of serving BS management, above-mentioned TOA can be the TOA of transfer point corresponding to a plurality of communities; Above-mentioned a plurality of community can be according to a plurality of communities on the not same frequency layer of the serving BS management of community indications coupling.
Wherein a plurality of communities transmitting apparatus can be dissimilar transfer point, comprises macro base station Macro ，Wei base station Pico, remote radio RRH.
Optionally, when RRM carries out up high interference indication HII, the implementation method of S12 specifically comprises:
Obtain the time difference that each cell of origin in a plurality of communities and Serving cell send location reference signals PRS or cell reference signals CRS; Obtain the up Timing Advance TA of described terminal; According to the uplink transmission power P of UE t, default receiver sensitivity P r, estimate the uplink interference scope UL_Interference_range of UE, according to uplink interference scope and the judgement of up Timing Advance and UE will the eNBi of scheduling resource on same frequency layer the uplink interference scope in UE whether, specifically comprise:
Judge whether the upward signal of UE can reach the base station of cell i, in this way, judgement and UE will the uplink interference scope of the eNBi of scheduling resource on same frequency layer in UE, as no, judge and UE will the eNB of scheduling resource on same frequency layer ithe uplink interference scope in UE not;
If the uplink interference scope in UE,, by up HII in X2 interface, notifies corresponding eNB i, the resource of UE scheduling exists to be disturbed.
It should be noted that, because HII is X2 interface define field, TOA during above-mentioned HII is the TOA of transfer point corresponding to a plurality of communities.Above-mentioned a plurality of community can be a plurality of communities of managing according to the non-serving base stations of community indications coupling.
It should be noted that, the method whether upward signal of the above-mentioned UE of judgement can reach the base station of cell i is specifically as follows:
Judgement (TA_ref/2+TOA<sub TranNum="147">0</sub>+ TOA<sub TranNum="148">i</sub>-Δ PRS<sub TranNum="149">i</sub>) * c<UL_Interference_range-L<sub TranNum="150">offset</sub>whether set up, in this way, judgement exists and disturbs, and is exactly that UE upward signal can arrive cell i base station, the uplink interference scope in UE, and as no, there is not interference in judgement, is exactly that UE upward signal can not reach cell i base station, not the uplink interference scope in UE; Wherein UL_Interference_range represents the interference range of UE, L<sub TranNum="151">offset</sub>represent skew surplus (can be zero, positive number that also can non-zero), c represents the light velocity, and TA_ref is the up Timing Advance in Serving cell.
The transmitting apparatus of its small area can be dissimilar transfer point, comprises macro base station Macro ，Wei base station Micro, femto base station Pico, but do not comprise remote radio, because macro base station is directly Resources allocation remote radio, do not adopt X2 interface to coordinate resource.
The embodiment of the present invention also provides ，Gai base station, a kind of base station as shown in Figure 2, comprising:
Receiving element 21, for receiving terminal, at the reference signal poor RSTD time of advent that completes one or many location reference signals location survey chance, after measuring, send radio resource control RRC signaling, wherein this RRC signaling comprises: the RSTD measurement result of one or many location reference signals location survey chance, described RSTD measurement result is expressed as the reference signal subframe time of advent of a plurality of communities or the reference signal subframe of relative positioning reference cell, a plurality of community time of advent is poor the time of advent, and by the reference signal subframe poor administrative unit 22 that the sends to time of advent of the reference signal subframe time of advent of a plurality of communities or relative positioning reference cell, a plurality of community time of advent,
Administrative unit 22, for according to the reference signal subframe time of advent of a plurality of communities or reference signal subframe time of advent the poor RRM that carries out.
Optionally, above-mentioned RRM comprises following every combination in any: auxiliary described terminal determines that descending assistance multicast communication CoMP measuring assembly, auxiliary described terminal determine whether a plurality of communities of multi-carrier polymerizing CA are applicable to adopting identical up lead TA and determine up high interference indication HII.
Optionally, above-mentioned RRC signaling can also comprise:
The cell identifier that RSTD measurement result is corresponding with each community.
Optionally, when RRM is that while selecting descending CoMP measuring assembly, administrative unit 22 is further used for:
Described a plurality of cell reference signals subframes are sorted the time of advent, find and meet | TOA<sub TranNum="161">t</sub>-TOA<sub TranNum="162">k</sub>| t community and k the community of the<the first default thresholding, TOA<sub TranNum="163">t</sub>the reference signal subframe time of advent of t community, TOA<sub TranNum="164">k</sub>it is the reference signal subframe time of advent of k community; Determine that individual transfer point corresponding at least one community to k community of t is the descending ComP measuring assembly of described UE, wherein the first default thresholding is less than the length of the current Cyclic Prefix in base station.
Optionally, determine multi-carrier polymerizing CA really fix time while gathering in advance when the auxiliary described terminal of RRM, administrative unit 22 further comprises:
Obtain the time difference that each cell of origin in a plurality of communities and Serving cell send location reference signals PRS or cell reference signals CRS; Find and meet | TOA<sub TranNum="167">i</sub>– Δ PRS<sub TranNum="168">i</sub>– (TOA<sub TranNum="169">k</sub>– Δ PRS<sub TranNum="170">k</sub>) | i community and k the community of the<the second default thresholding, TOA<sub TranNum="171">i</sub>the reference signal subframe time of advent of i community, TOA<sub TranNum="172">k</sub>the reference signal subframe time of advent of k community, Δ PRS<sub TranNum="173">i</sub>the time difference that i community and Serving cell send location reference signals PRS or cell reference signals CRS, Δ PRS<sub TranNum="174">k</sub>it is the time difference that k community and Serving cell send location reference signals PRS or cell reference signals CRS; When i community and k community have respectively ascending resource on different frequency layer simultaneously for described Terminal Service, i community and k community are adopted to identical up Timing Advance TA.
Optionally, when RRM is up high interference indication HII, administrative unit 22 further comprises:
Obtain the time difference that each cell of origin in a plurality of communities and Serving cell send location reference signals PRS or cell reference signals CRS; Obtain the up Timing Advance TA of described terminal, according to the uplink transmission power of described terminal, estimate the uplink interference scope of described terminal, according to the up Timing Advance of described terminal and uplink interference scope and uplink interference scope, judge whether the distance of terminal Dao Ge base station is less than the uplink interference scope of terminal, as terminal is less than the uplink interference scope of terminal to the distance of the base station of cell i, in the resource by terminal scheduling described in the base station of the up high interference indication ULHII， notifying cell i in X2 interface, exist and disturb.
The base station that the embodiment of the present invention provides is to send to base station by the direct TOA of RRC signaling or RSTD, RRM management is directly carried out in base station, reduced like this propagation delay time that is transferred to the service terminal centre of location from UE, the computing time delay of the service terminal centre of location, the service terminal centre of location is to the time delay of serving BS, so it has advantages of that propagation delay time is little.
The embodiment of the present invention also provides a kind of and supports base station to carry out the method for RRM, and the method as shown in Figure 3, comprising:
S31, the RSTD measurement result that the reference signal time of advent in completing one or many location reference signals location survey chance, poor RSTD obtained after measuring, it is poor the time of advent that described RSTD measurement result is expressed as the reference signal of a plurality of cell reference signals subframe times of advent or relative positioning reference cell, a plurality of community time of advent;
S32,Xiang base station sends RRC signaling, and described RRC signaling comprises: the RSTD measurement result of one or many location reference signals location survey chance.
The method that the embodiment of the present invention provides sends RRC signaling to base station so that base station is TOA by RRC signaling or RSTD taps into row RRM and manage, reduced like this propagation delay time that is transferred to the service terminal centre of location from UE, the computing time delay of the service terminal centre of location, the service terminal centre of location is to the time delay of serving BS, so it has advantages of that propagation delay time is little.
The embodiment of the present invention also provides a kind of terminal, and this terminal as shown in Figure 4, comprising:
Measuring unit 41, for the RSTD measurement result that the reference signal time of advent completing one or many location reference signals location survey chance, poor RSTD obtained after measuring, it is poor the time of advent that described RSTD measurement result is expressed as the reference signal of a plurality of cell reference signals subframe times of advent or relative positioning reference cell, a plurality of community time of advent;
Transmitting element 42, for send RRC signaling to base station, described RRC signaling comprises: the RSTD measurement result of one or many location reference signals location survey chance.
Optionally, above-mentioned terminal also comprises:
Receiving indicating member 43, is while serve based on RRM during for Location Request when receiving, by Qos grade indication in Location Request or directly indicate, controls described transmitting element 32 transmission RRC signalings.
The terminal that the embodiment of the present invention provides sends RRC signaling to base station so that base station is TOA by RRC signaling or RSTD taps into row RRM and manage, reduced like this propagation delay time that is transferred to the service terminal centre of location from UE, the computing time delay of the service terminal centre of location, the service terminal centre of location is to the time delay of serving BS, so it has advantages of that propagation delay time is little.
In said units and system embodiment, included modules or unit are just divided according to function logic, but are not limited to above-mentioned division, as long as can realize corresponding function; In addition, the concrete title of each functional module also, just for the ease of mutual differentiation, is not limited to protection scope of the present invention.
It will be understood by those skilled in the art that all or part of step of technical scheme that the embodiment of the present invention provides is to complete by the relevant hardware of program command.Such as completing by computer run journey.This program can be stored in read/write memory medium, for example, and random asccess memory, disk, CD etc.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any modifications of doing within the spirit and principles in the present invention, be equal to and replace and improvement etc., within all should being included in protection scope of the present invention.

Claims (14)

1. a management method for Radio Resource, is characterized in that, described method comprises:
The reference signal time of advent poor RSTD of receiving terminal in completing one or many location reference signals location survey chance sends radio resource control RRC signaling after measuring, wherein said RRC signaling comprises: the RSTD measurement result of one or many location reference signals location survey chance, and it is poor the time of advent that described RSTD measurement result is expressed as the reference signal of a plurality of cell reference signals subframe TOA time of advent or relative positioning reference cell, a plurality of community time of advent;
According to the reference signal subframe time of advent of a plurality of communities or the reference signal poor RRM that the carries out time of advent.
2. method according to claim 1, it is characterized in that, described RRM comprises following every middle combination in any: auxiliary described terminal is determined descending assistance multicast communication CoMP measuring assembly, assisted described terminal to determine whether a plurality of communities of multi-carrier polymerizing CA are applicable to adopting identical up lead TA and determine up high interference indication HII.
3. method according to claim 1, is characterized in that, described RRC signaling also comprises:
The cell identifier that RSTD measurement result is corresponding with each community and frequency layer information.
4. according to the method described in any one in claim 1-3, it is characterized in that, when RRM is determined descending CoMP measuring assembly for auxiliary described terminal, the described reference signal subframe according to a plurality of communities is carried out RRM and comprise the time of advent:
Reference signal subframe to described a plurality of communities sorts the time of advent, finds and meets | TOA<sub TranNum="204">t</sub>-TOA<sub TranNum="205">k</sub>| t community and k the community of the<the first default thresholding, TOA<sub TranNum="206">t</sub>the reference signal subframe time of advent of t community, TOA<sub TranNum="207">k</sub>it is the reference signal subframe time of advent of k community; Determine that individual transfer point corresponding at least one community to k community of t is the descending ComP measuring assembly of described UE, wherein the first default thresholding is less than the length of the current Cyclic Prefix in base station.
5. according to the method described in any one in claim 1-3, it is characterized in that, when RRM, for auxiliary described terminal, determine multi-carrier polymerizing CA and really fix time while gathering in advance, described reference signal time of advent according to a plurality of communities is poor carries out RRM and comprises:
Obtain the time difference that each cell of origin in a plurality of communities and Serving cell send location reference signals PRS or cell reference signals CRS;
Find and meet | TOA<sub TranNum="212">i</sub>– Δ PRS<sub TranNum="213">i</sub>– (TOA<sub TranNum="214">k</sub>– Δ PRS<sub TranNum="215">k</sub>) | i community and k the community of the<the second default thresholding, TOA<sub TranNum="216">i</sub>the reference signal subframe time of advent of i community, TOA<sub TranNum="217">k</sub>the reference signal subframe time of advent of k community, Δ PRS<sub TranNum="218">i</sub>the time difference that i community and Serving cell send location reference signals PRS or cell reference signals CRS, Δ PRS<sub TranNum="219">k</sub>it is the time difference that k community and Serving cell send location reference signals PRS or cell reference signals CRS; When i community and k community have respectively ascending resource on different frequency layer simultaneously for described Terminal Service, i community and k community are adopted to identical up Timing Advance TA.
6. according to the method described in any one in claim 1-3, it is characterized in that, when RRM is up high interference indication HII, described according to the reference signal subframe time of advent of a plurality of communities or reference signal time of advent poorly carrying out RRM and comprise:
Obtain the time difference that each cell of origin in a plurality of communities and Serving cell send location reference signals PRS or cell reference signals CRS;
Obtain the up Timing Advance TA of described terminal;
According to the uplink transmission power of described terminal, estimate the uplink interference scope of described terminal, according to the uplink interference scope of the up Timing Advance of described terminal and terminal, judge whether the distance of terminal Dao Ge base station is less than the uplink interference scope of terminal, as terminal is less than the uplink interference scope of terminal to the distance of the base station of cell i, in the resource by terminal scheduling described in the base station of the up high interference indication HII， notifying cell i in X2 interface, exist and disturb.
7.Yi Zhong base station, is characterized in that, described base station comprises:
Receiving element, for receiving terminal, at the reference signal poor RSTD time of advent that completes one or many location reference signals location survey chance, after measuring, send radio resource control RRC signaling, wherein this RRC signaling comprises: the RSTD measurement result of one or many location reference signals location survey chance, described RSTD measurement result is expressed as the reference signal subframe time of advent of a plurality of communities or the reference signal of relative positioning reference cell, a plurality of community time of advent is poor the time of advent, and by the reference signal subframe time of advent of described a plurality of communities or the reference signal poor administrative unit that the sends to time of advent,
Administrative unit, for according to the reference signal subframe time of advent of a plurality of communities or reference signal time of advent the poor RRM that carries out.
8. base station according to claim 7, it is characterized in that, described RRM comprises following every middle combination in any: auxiliary described terminal is determined descending assistance multicast communication CoMP measuring assembly, assisted described terminal to determine whether a plurality of communities of multi-carrier polymerizing CA are applicable to adopting identical up lead TA and determine up high interference indication HII.
9. base station according to claim 7, is characterized in that, described RRC signaling also comprises:
The cell identifier that RSTD measurement result is corresponding with each community and frequency layer information.
10. base station according to claim 9, is characterized in that, when RRM is that while selecting descending CoMP measuring assembly, described administrative unit is further used for:
Reference signal subframe to described a plurality of communities sorts the time of advent, finds and meets | TOA<sub TranNum="237">t</sub>– TOA<sub TranNum="238">k</sub>| t community and k the community of the<the first default thresholding, TOA<sub TranNum="239">t</sub>the reference signal subframe time of advent of t community, TOA<sub TranNum="240">k</sub>it is the reference signal subframe time of advent of k community; Determine that individual transfer point corresponding at least one community to k community of t is the descending ComP measuring assembly of described terminal, wherein the first default thresholding is less than the length of the current Cyclic Prefix in base station.
11. base stations according to claim 9, is characterized in that, determine multi-carrier polymerizing CA really fix time while gathering in advance when the auxiliary described terminal of RRM, and described administrative unit further comprises:
Obtain the time difference that each cell of origin in a plurality of communities and Serving cell send location reference signals PRS or cell reference signals CRS; Find and meet | TOA<sub TranNum="244">i</sub>-Δ PRS<sub TranNum="245">i</sub>(TOA<sub TranNum="246">k</sub>-Δ PRS<sub TranNum="247">k</sub>) | i community and k the community of the<the second default thresholding, TOA<sub TranNum="248">i</sub>the reference signal subframe time of advent of i community, TOA<sub TranNum="249">k</sub>the reference signal subframe time of advent of k community, Δ PRS<sub TranNum="250">i</sub>be the time difference that i community and Serving cell send location reference signals PRS or cell reference signals CRS, Δ PRSk is the time difference that k community and Serving cell send location reference signals PRS or cell reference signals CRS; When i community and k community have respectively ascending resource on different frequency layer simultaneously for described Terminal Service, i community and k community are adopted to identical up Timing Advance TA.
12. base stations according to claim 9, is characterized in that, when RRM is up high interference indication HII, described administrative unit further comprises:
Obtain the time difference that each cell of origin in a plurality of communities and Serving cell send location reference signals PRS or cell reference signals CRS; Obtain the up Timing Advance TA of described terminal, according to the uplink transmission power of described terminal, estimate the uplink interference scope of described terminal, according to the uplink interference scope of the up Timing Advance of described terminal and terminal and uplink interference scope, judge whether the distance of terminal Dao Ge base station is less than the uplink interference scope of terminal, as terminal is less than the uplink interference scope of terminal to the distance of the base station of cell i, in the resource by terminal scheduling described in the base station of the up high interference indication HII， notifying cell i in X2 interface, exist and disturb.
Support base station to carry out the method for RRM for 13. 1 kinds, it is characterized in that, described method comprises:
The RSTD measurement result that reference signal time of advent, poor RSTD obtained after measuring in completing one or many location reference signals location survey chance, it is poor the time of advent that described RSTD measurement result is expressed as the reference signal of a plurality of cell reference signals subframe times of advent or relative positioning reference cell, a plurality of community time of advent;
To base station, send RRC signaling, described RRC signaling comprises: the RSTD measurement result of one or many location reference signals location survey chance.
14. 1 kinds of terminals, is characterized in that, described terminal comprises:
Measuring unit, for the RSTD measurement result that the reference signal time of advent completing one or many location reference signals location survey chance, poor RSTD obtained after measuring, it is poor the time of advent that described RSTD measurement result is expressed as the reference signal of a plurality of cell reference signals subframe times of advent or relative positioning reference cell, a plurality of community time of advent;
Transmitting element, for send RRC signaling to base station, described RRC signaling comprises: the RSTD measurement result of one or many location reference signals location survey chance.
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