CN103813376A - Signal measurement device and signal measurement method - Google Patents
Signal measurement device and signal measurement method Download PDFInfo
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- CN103813376A CN103813376A CN201210458026.1A CN201210458026A CN103813376A CN 103813376 A CN103813376 A CN 103813376A CN 201210458026 A CN201210458026 A CN 201210458026A CN 103813376 A CN103813376 A CN 103813376A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0032—Distributed allocation, i.e. involving a plurality of allocating devices, each making partial allocation
- H04L5/0035—Resource allocation in a cooperative multipoint environment
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0058—Allocation criteria
- H04L5/0073—Allocation arrangements that take into account other cell interferences
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
- H04L5/005—Allocation of pilot signals, i.e. of signals known to the receiver of common pilots, i.e. pilots destined for multiple users or terminals
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
- H04L5/0057—Physical resource allocation for CQI
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0078—Timing of allocation
- H04L5/0087—Timing of allocation when data requirements change
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
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Abstract
The invention aims at providing a signal measurement device capable of achieving mobility measurement in a heterogeneous network formed by macro nodes and micro nodes and improving the signal measurement accuracy in the mobility measurement. The signal measurement device is used for signal measurement in the heterogeneous network formed by the macro nodes and the micro nodes. The signal measurement device is characterized by comprising a retrieval module for retrieving scene information of adjacent nodes adjacent to a terminal device in a database, a judgment module for judging whether the adjacent nodes belong to a scene where multiple nodes are provided with the same cell identifiers, and an updating module, wherein the scene information comprises, at least, a node structure in a scene where the adjacent nodes are located and node identifier information, and the updating module is used for updating a radio resource management set based on a cell specific reference signal (CRS) when a judgment result of the judgment module is no, and updating the radio resource management set based on a channel state information reference signal (CRS-RS) when the judgment result of the judgment module is yes.
Description
Technical field
The present invention relates to provide equipment and the method for service in mobile communications network.Refer more particularly in multiple base stations united service system, for signal measurement apparatus and the signal measurement method of mobile communication heterogeneous network.Here the mobile communications network of mentioning is the mobile communication system of supporting multiple base stations united service.
Background technology
Current, along with increasing and high demand to data rate of mobile subscriber, traditional cellular network more and more can not meet users' needs.Third generation partner program (The3rd-Generation Partnership Project) is an International Standards Organization, once develops system architecture and the standard of the second generation and 3 G mobile communication network.These standards have been applied to and have been deployed with on the network of air interface at present.Current, 3GPP is setting about formulating lifting version LTE (Long-Term Evolution) and the evolution version LTE-Advanced thereof towards the Long Term Evolution of the 4th third generation mobile communication network, its object is exactly the availability of frequency spectrum of the availability of frequency spectrum (throughput/bandwidth), especially cell edge in order to increase system.
What traditional Cellular Networks was generally considered is the scene of honeycomb homogenous networks.The coverage of each base station can be regarded a honeycomb as, and because base station adopts identical transmitting power, the size of honeycomb is also identical.Form the network of the regular distribution of a what is called " isomorphism ".But in real network, operator is in order further to improve covering and the capacity of network, often the hot zones in macro base station coverage increases some non-traditional nodes.These nodes comprise that " micro-base station " (pico eNB), " Remote Radio Unit " (Remote Radio Head:RRH), " Home eNodeB " (home eNB), " relaying " are (relay) etc.This between node and the traditional base station as grand node, communicates by wired or wireless slightly.Due to the existence of these heterogeneous nodes, network exists multilayer to cover, and the scope of every layer of covering is also erratic, is called " heterogeneous network ".
In 3GPP Rel.11, in order to further investigate coordinated multipoint transmission technology (CoordinatedMulti-Point:CoMP) technology, introduce multiple heterogeneous network operative scenario.In the coverage that typical heterogeneous network scene is a macro base station (Macro eNB), comprise multiple radio frequencies that connect by optical fiber and draw first unit (RRH).No matter be macro base station, or radio frequency draws first unit, can regard that one sends recipient node (Transmission/reception Point), is referred to as node (TP) in this patent as.The TP that macro base station forms has larger coverage, is called " grand node (grand TP) ".The TP that radio frequency draws the such node in first unit (RRH) to form has less coverage, is called " micro-node (micro-TP) ".
In the past, these TP were unified is controlled by general master controller in macro base station.But these TP can have identical or different cell identifier (Cell ID).Wherein, it is " scene 3 " that 3GPP has separately the independently heterogeneous network scenario definition of cell identifier (identifier:ID) grand node and the micro-node covering, and the heterogeneous network scenario definition grand node and the micro-node covering to same cells ID is " scene 4 ".Scene 3 is that all system parameterss based on community ID can easier be distinguished by user terminal (User Equipment:UE) with respect to the advantage of scene 4.
Figure 18 is the structural representation with the typical heterogeneous network scene (scene 3) of individual cell ID.In the scene shown in Figure 18, the coverage of macro base station TP1 is macrocell 104, and establishing cell identifier is cell1.The coverage of other four low power nodes TP2, TP3, TP4, TP5 is respectively four Microcells, establishes community ID and is respectively cell2, cell3, cell4, cell5.The coverage of these four micro-node TP2, TP3, TP4, TP5 is within the coverage of grand node TP1.And, this slightly TP be connected with grand TP1 by optical fiber.
Grand node TP1 and micro-node TP2, TP3, TP4, TP5 can send cell specific reference signal CRS (Cell specific Reference Signal) signal separately.Although coverage exists overlapping, but because the ID of upper grand node and the next micro-node is different, UE can distinguish the CRS signal CRS1, CRS2, CRS3, CRS4, the CRS5 that come from different node TP1, TP2, TP3, TP4, TP5, and wherein CRS signal CRS1, CRS2, CRS3, CRS4, CRS5 correspond respectively to community IDcell1, cell2, cell3, cell4, cell5.Therefore, master controller can be by the report from UE, distinguish exactly grand node and micro-node, CRS based on traditional is signal quality measured just can well work, and carries out exactly that RRM (Radio ResourceManagement:RRM) is measured and the configuration management of multipoint cooperative CoMP measuring set.
In version before 3GPP Rel.10, signal quality measured all based on CRS for RRM.UE (User Equipment: subscriber equipment), by measuring from the node of community, UE place and the CRS signal of neighbor cell node, obtains also reporting to the eNB (macro base station) as main service node from the signal quality of different districts.Master controller in macro base station instructs UE to carry out corresponding RRM process, such as community selection, cell reselection, switching etc.
Defined different judgment condition and carried out the management of RRM measurement according to the residing different conditions of UE (idle condition or connection status) and different measurement type (common frequency measurement, different-frequency measure, different RAT measure etc.).Signal quality is by two Parametric Representations, and one is pilot signal received power, and English name is RSRP (Reference Signal Received Power).Be defined as pilot signal Resource Block power and linear averaging.Representative be the absolute value of the useful signal that receives.One is the pilot signal quality of reception, and English name is RSRQ (Reference Signal Received Quality).Be defined as useful received power in transmission bandwidth than receive gross power and.What represent is the relative value of signal-to-jamming ratio.
Figure 19 is the schematic diagram that has multiple nodes and have the typical heterogeneous network scene (scene 4) of same cells ID.In this scene, the macro base station in same macrocell has identical community ID with its lower micro-node being connected.
As shown in figure 19, the coverage of four micro-node TP7, TP8, TP9, TP10 the coverage of grand node TP6 within.This slightly node there is the community ID identical with affiliated grand node.This slightly TP be connected with affiliated grand TP by optical fiber.Under this scene, node TP6, TP7, TP8, TP9, TP10 be corresponding identical Cell ID, UE cannot distinguish the system parameters based on Cell ID between macro base station and each micro-node, node TP6, TP7, TP8, TP9, TP10 send CRS6 to UE, so UE can only obtain the stack from the CRS signal of all nodes, cannot carry out the configuration of CoMP measuring set based on CRS signal quality measured with traditional.
Under this background, some companies propose, and adopt CSI-RS (Channel State Information-Reference Signal, channel state information reference signals) to replace CRS to carry out signal quality measured for the configuration of CoMP measuring set.By configuring different CSI-RS resources to different TP, make UE to obtain the signal quality information from different TP by measuring CSI-RS, carry out the configuration management of CoMP measuring set.
In the prior art, signal quality measured about using CSI-RS to carry out 4 times in scene, carry out the configuration management of CoMP measuring set, be once repeatedly suggested.
In the 3GPP motion R1-121628, CoMP configuration management is carried out in the measurement that Samsung has proposed carry out signal quality RSRP based on CSI-RS.And concrete CSI-RS antenna port definition of measuring for RSRP proposed.
In 3GPP motion R1-121742, Ericsson has proposed to introduce and should carry out signal quality method based on CSI-RS.But for ambulant measurement, still continue to use the measurement based on CRS.
But this signal quality measured based on CSI-RS, only, for the configuration management of the CoMP measuring set under fixed scene 4, can not be used for mobility measurements.And, for mobile management and the configuration management of CoMP measuring set, the also not relevant solution of mixing under scene.
Figure 20 be scene 3 and scene 4 form across base station heterogeneous network mix scene.In this scene, the configuration difference of the grand node closing on.In the coverage of grand node TP1, be all configured to scene 3, there is micro-node TP2, TP3, TP4, TP5; In the coverage of grand node TP6, be all configured to scene 4, there is micro-node TP7, TP8, TP9, TP10.When UE carries out in two scene edges signal quality measured time, just there will be following problem.
Take mobile phone shown in scheming (UE) as example.It is in the coverage edge of scene 3, and Serving cell is the cell1 being covered by TP1, that is to say, TP1 is the main service macro base station of this mobile phone.A little less than signal quality due to Serving cell now, start the signal quality measured process of neighbor cell, to obtain CoMP service or switch in time.
UE is at present in scene 3, if there is adjacent TP (to comprise grand node and micro-node, as TP2, TP3, TP6) in scene 4, because signal quality measured the support at present of CSI-RS carried out the configuration of CoMP measuring set across the cross-scenario multiple TP in base station, therefore UE can not obtain respectively the CoMP service from the TP of different scenes.
In addition, owing to not supporting at present mobile management based on CSI-RS signal quality measured, UE is at present in scene 3, if it has adjacent TP (to comprise grand node and micro-node, as TP2, TP3, TP6) in scene 4, can only measure the signal quality from these TP by CRS so.UE cannot distinguish the signal from these transmitting nodes, can only obtain the stack from the CRS signal of all transmitting node TP6, TP7, TP8 in cell6.Therefore can cause the signal quality Q by CRS6 actual measurement
n' (RSRP6 ') can be greater than the really signal quality Q from TP6
n(RSRP6).If Q
n'-Qs>=T
h, (Q
nadjacent grand TP signal quality, Q
n' be all signal quality stacks in adjacent TP scene 4 areas of coverage of living in, T
hhandoff threshold), switch.Being switched to macro base station TP6 serves.And the signal quality Q that is actually used in transfer of data of possibility macro base station TP6
n<Q
s, therefore UE has obtained than the also poor service of former Serving cell, and this switching is exactly unnecessary for UE.
Summary of the invention
In order to realize cross-scenario CoMP and mobile management, this patent has been introduced signal quality measured based on CSI-RS in mobile management.
The object of the present invention is to provide a kind of signal measurement apparatus and signal measurement method, can realize the mobility measurements in the heterogeneous network being formed by grand node and micro-node, and can improve the precision of signal measurement in mobility measurements.
One of technical scheme of the present invention is a kind of signal measurement apparatus, be used at the heterogeneous network measuring-signal being formed by grand node and micro-node, it is characterized in that, comprise: retrieval module, in database, retrieve the scene information of the adjacent node adjacent with terminal equipment, described scene information at least comprises that the node in this adjacent node scene of living in forms and node identifier information; Judge module, according to the result for retrieval of above-mentioned retrieval module, judge whether described adjacent node belongs to multiple nodes and have the scene of same cells identifier, update module, in the judged result of above-mentioned judge module when negating, upgrade RRM collection based on cell specific reference signal CRS, for certainly time, upgrade RRM collection based on channel state information reference signals CSI-RS in the judged result of above-mentioned judge module.
According to this technical scheme, can identify the classification of heterogeneous network scene of living in, adopt different RRM modes according to scene classification, thereby realize the mobile management in the heterogeneous network that multiple scenes mix.
In addition, the present invention can be also, above-mentioned judge module also judges whether the corresponding grand node of described adjacent node is the grand node of main service of terminal equipment, in judged result whether regularly, further judge the corresponding grand node of described adjacent node and whether and between the grand node of main service of terminal equipment to have interface, above-mentioned update module only, in the situation that there is interface, carries out upgrading based on the above-mentioned RRM collection of channel state information reference signals CSI-RS.
In addition, the present invention can be also that the scene that above-mentioned judge module judges is the scene 4 in third generation partner program 3GPP.
In addition, the present invention can be also, also has signal quality measured administration module, and this signal quality measured administration module judges that whether the signal quality of main service node of user terminal is lower than specified thresholds,
During whether lower than specified thresholds, carry out the renewal of RRM collection at the signal quality that is judged as main service node.
In addition, the present invention can be also, also there is CoMP administration module, described CoMP administration module is according to the RRM collection after upgrading based on channel state information reference signals CSI-RS, from multiple adjacent nodes, select the set of node for coordinated multipoint transmission CoMP, thereby according to the channel condition information CSI of the adjacent node feedback from set of node, judge the classification of coordinated multipoint transmission CoMP operation.
In addition, the present invention can be also, also has mobile management module, and described mobile management module is according to the RRM collection after upgrading, calculate the signal quality difference between main service node and each adjacent node, switch main service node according to calculated signal quality difference.
The present invention can be also a kind of signal measurement method, be used at the heterogeneous network measuring-signal being formed by grand node and micro-node, it is characterized in that, comprise: searching step, in database, retrieve the scene information of the adjacent node adjacent with terminal equipment, described scene information at least comprises that the node in this adjacent node scene of living in forms and node identifier information; Determining step, according to the result for retrieval of above-mentioned searching step, judge whether described adjacent node belongs to multiple nodes and have the scene of same cells identifier, step of updating, in the judged result of above-mentioned determining step when negating, upgrade RRM collection based on cell specific reference signal CRS, for certainly time, upgrade RRM collection based on channel state information reference signals CSI-RS in the judged result of above-mentioned determining step.
The present invention is by the classification of identification heterogeneous network scene of living in, adopt different RRM modes to upgrade RRM measuring set according to scene classification, on the basis of the RRM measuring set after renewal, carry out CoMP operation or mobile switching, thereby realized cross-scenario CoMP and mobile management.According to the present invention, can identify the classification of heterogeneous network scene of living in, adopt different RRM modes according to scene classification, thereby realize the mobile management in the heterogeneous network that multiple scenes mix, and can improve the precision of signal measurement in mobility measurements.。
Accompanying drawing explanation
Fig. 1 is the internal structure schematic diagram of the macro base station (grand TP) in the heterogeneous network that relates to of the first execution mode.
Fig. 2 is the exemplary plot of the user profile of storing in centralized control unit.
Fig. 3 is the exemplary plot of the TP information of storing in centralized control unit.
Fig. 4 is the exemplary plot of the macro base station X2 information of storing in centralized control unit.
Fig. 5 is the schematic diagram of the adjacent TP information of storing in centralized control unit.
Fig. 6 is the schematic diagram of the signal quality information stored in centralized control unit.
Fig. 7 is the schematic diagram of the RRM measuring set information of storing in centralized control unit.
Fig. 8 is the cut-away view that represents the micro-node R RH being connected by optical interface with base station.
Fig. 9 is the flow chart of the RRM measuring set configuration that represents that the first execution mode relates to.
Figure 10 is the internal structure schematic diagram of the macro base station (grand TP) in the heterogeneous network that relates to of the second execution mode.
Figure 11 is the exemplary plot of the CoMP measuring set information of storing in centralized control unit.
Figure 12 is the exemplary plot of the channel condition information stored in centralized control unit.
Figure 13 is the flow chart that the signal quality measured management based on CRS/CSI-RS is shown.
Figure 14 expresses the general flow chart of the centralized control unit that the second execution mode relates to.
Figure 15 is the flow chart of the CoMP management that illustrates that the second execution mode relates to.
Figure 16 is the flow chart of the mobile management that illustrates that the second execution mode relates to.
Figure 17 is the master controller of each BS and user's typical Signalling exchange figure.
Figure 18 is the structural representation with the typical heterogeneous network scene (scene 3) of individual cell ID.
Figure 19 is the schematic diagram that has multiple nodes and have the typical heterogeneous network scene (scene 4) of same cells ID.
Figure 20 is the schematic diagram across base station heterogeneous network mixing scene that scene 3 and scene 4 form.
Embodiment
Describe the specific embodiment of the present invention in detail below in conjunction with accompanying drawing.
(the first execution mode)
Fig. 1 is the internal structure schematic diagram of the macro base station (grand TP) in the first execution mode heterogeneous network of relating to, being made up of grand node and micro-node.Mainly show the part relevant with the renewal of RRM measuring set.
Wherein, the label 1101 in Fig. 1 represents macro base station (base station) 1 ~ N (Macro eNB, grand TP) of a certain scene in heterogeneous network.Each macro base station 1 ~ N can interconnect by X2 interface 1108 and other macro base stations.X2 interface 1108 is the standard interfaces between base station.
In addition, each macro base station 1 ~ N also interconnects by optical interface 1107 and each micro-node of its subordinate, and optical interface 1107 is the interfaces between each micro-node of comprising of base station 1 ~ N scope separately.In Fig. 1, establishing micro-node is that radio frequency draws first unit (RRH, micro-TP) 1102 to describe.
In macro base station 1 ~ N, internal structure is identical.Herein, as an example of base station 1 example, the structure to inside of base station describes.
As shown in Figure 1, in base station 1, except X2 interface 1108 and optical interface 1107, also have: centralized control unit 1103, user data cache 1104, base band signal process 1105 and radio-frequency module 1106.
Wherein, user data cache 1104 is for storing user data to be sent.Base band signal process 1105 is for carrying out a series of Base-Band Processing such as modulating-coding to the user face data of receiving and chain of command signaling.Radio-frequency module 1106 is for the baseband signal of receiving is carried out to high frequency modulated, then sends from antenna.These can use existing conventional means to be realized.
In the memory of centralized control unit 1103, store: user profile 11031, TP information 11032, macro base station X2 information 11033, adjacent TP information 11034, signal quality information 11035 and RRM measuring set information 11036.These information can be stored in a memory cell, also can be stored in respectively in multiple memory cell.And establishing these information can be by real-time update in each dispatching cycle.Below describe the main contents of each information in detail.
Fig. 2 is the exemplary plot of user profile 11031.The included list item of user profile 11031 has: UE ID 40310, state 40311, priority 40312 and main service TP ID 40313.
Main service TP ID 40313 is identifiers that the node TP of control signal is provided for the represented user of UE ID 40310.The user's that for example in Fig. 2, UE ID is UE1 connection status is shown as " connection ", and its priority is P1, and the ID of main service TP is " TP1 ".
Fig. 3 is the exemplary plot of TP information 11032.The included list item of TP information 11032 has: TPID 40320, main plot ID 40321, base station IDs 40322 and scene 40323.
TP ID 40320 is the identifiers for the each TP of recognition network.Main plot ID 40321 is identifiers of the community for identifying the shown node of TP ID 40320 place.For the TP of scene 3, even if it is overlapping that the coverage cell of the coverage cell of dominant base and micro-node exists, but for overlapping region, use different community ID to be identified according to corresponding different nodes, therefore, no matter be host node or micro-node, each TP ID correspondence different community ID (cell ID), and TPID is corresponding one by one with cell ID.For the TP of scene 4, for the community ID of micro-node uses the community ID of the host node of the covering overlapping, thereby exist multiple TP ID correspondences the phenomenon of identical cell ID.That is to say, in scene 4, the multiple TP in same community share identical cellID.
Base station IDs 40322 is that the main service node for identifying under the shown node of TP ID 40320 is the identifier of base station.Scene 40323 is the heterogeneous network scenes (being made as scene 3 or scene 4 in 3GPP herein) that represent that this base station IDs 40322 is affiliated.
According to the TP information 11032 in Fig. 3, can recognize formation and the scene type of heterogeneous network that TP goes out.The for example TP1 of the Section 1~Section 4 in Fig. 3, TP2, the corresponding community ID of TP3, TP4 difference respectively, but corresponding base station IDs is identical, therefore belongs to the community of same scene 3.And community ID " cell ID6 " corresponding to TP8, the TP9 of two reciprocal, and corresponding base station IDs is also identical, therefore belongs to the community of same scene 4.
Fig. 4 is the exemplary plot of macro base station X2 information 11033.In macro base station X2 information 11033, storing the id information with each base station with other base stations that X2 is connected, included list item has: base station IDs 40331 and multiple connection base station IDs 40332.
Wherein, base station IDs 40331 is the identifiers for identifying base station (host node).And multiple connection base station IDs 40332 are the identifiers that have the base station of X2 interface between base station IDs 40331.
As shown in Figure 4, between base station BS 1 and BS2, BS3, there is X2 interface, between BS2 and BS1, BS3, BS5, have X2 interface.
Fig. 5 is the schematic diagram of adjacent TP information 11034.The information of storing the adjacent TP of each TP in adjacent TP information 11034, included list item has: TP ID 40340 and multiple adjacent TP ID40341.
Wherein TP ID 40340 is the identifiers for recognition node.Multiple adjacent TP ID 40341 are the identifiers as the adjacent TP adjacent with TP ID 40340.
In the present invention, so-called " adjacent node " distinguished the adjacent node adjacent with specific T P and the adjacent node adjacent with mobile terminal.The node of the equipment that the so-called adjacent node adjacent with mobile terminal refers to distance users terminal in prescribed limit, can set arbitrarily this prescribed limit as required.Therefore, can determine adjacent node described later and this specific T P user that temporarily foundation contacts according to the adjacent TP adjacent with specific T P shown in Fig. 5 here.In addition, can certainly adopt other method or range criterion to determine the adjacent node adjacent with mobile terminal.
In example in the first embodiment, adopt the adjacent TP information form shown in Fig. 5.If total N TP in network, the number of the adjacent TP that each TP can configure is at most N-1.These adjacent TP are stored in the lane database of base station in advance.In the time that RRM measuring process starts, the UE in the node institute coverage that these adjacent TP are TP ID 40340 can carry out as carrying out signal quality measured candidate TP apart from the adjacent TP of this UE.That is to say, even if UE by Cell searching, has detected certain RS signal corresponding to certain cell ID, if TP corresponding to this Cell ID be not in adjacent TP information memory cell, do not measure the TP signal quality that this Cell ID is corresponding.In the present invention, main service TP and adjacent TP have fixedly formed TP corresponding in RRM measuring set.That is to say, in RRM measuring set, the maximum of corresponding TP number is N.Once the main service TP of UE determined, the TP that its RRM measuring set comprises has also just determined.
Be more than the setting of carrying out for convenience of description, in actual network operation, in order to configure the RRM measuring set of specific optimization to user, the TP comprising in RRM measuring set can carry out semi-static or upgrade dynamically according to the operation maintenance state of network.
Fig. 6 is the schematic diagram of signal quality information 11035.In signal quality information 11035, storing its main service TP of each user (mobile terminal) measurement and the signal quality (RSRP/RSRQ) of adjacent TP, included list item has: UE ID 40350, main TP ID/ quality 40351 and multiple adjacent TP ID/ quality 40352.
Multiple adjacent TP ID/ quality 40352 are the identifier of adjacent TP and signal quality values of this adjacent TP that user measure adjacent with user.Here the adjacent TP in Fig. 6 using the adjacent TP shown in Fig. 5, determines adjacent TP take user's main service node as benchmark.And signal quality is defined as RSRP/RSRQ value.The signal quality value of corresponding each node of user of different main service nodes has been shown in Fig. 6.
Fig. 7 is the schematic diagram of RRM measuring set information 11036.RRM measuring set information 11036 is being stored the corresponding RS resource distribution to corresponding TP in each user configured RRM measuring set, and the list item comprising has: UE ID 40360, main TP RS configuration 40361 and multiple adjacent TP RS configuration.
Multiple adjacent TP RS configurations represent the RS information configuration of the adjacent TP of corresponding TP.If adjacent TP belongs to scene 3, continue to use the CRS configuration corresponding with its Cell ID and frequency offset.If adjacent TP belongs to scene 4, use CSI-RS configuration.Specific configuration information aftermentioned.
More than describe each information being stored in centralized control unit 1103 in detail.Get back to the explanation of Fig. 1, in centralized control unit 1103, the processor of centralized control unit 1103 by carry out RRM measuring set more new technological process move.Wherein, the RRM measuring set that comprises the renewal for carrying out RRM measuring set is upgraded control unit 11037.This RRM measuring set is upgraded control unit 11037 and is equivalent to " signal measurement apparatus " in the present invention.
Specifically, RRM measuring set renewal control unit 11037 comprises: retrieval unit 110371, judging unit 110372 and updating block 110373.
Judging unit 110372 is used for judging the state of the adjacent TP that retrieval unit 110371 retrieves.Specifically, judge for each adjacent node whether this node belongs to scene 4.The feature of scene 4 is that multiple nodes have same cells identifier.
Whether judging unit 110372 can also the corresponding grand node of each adjacent node be the grand node of main service of terminal equipment, whether the main service node and the adjacent node that namely judge mobile terminal belong to same community, in judged result whether regularly, whether the corresponding grand node of adjacent node that further judgement does not belong to same community with the main service node of mobile terminal is and between the dominant base of the main service node affiliated subdistrict of terminal equipment (referred to herein as the grand node of main service), exist X2 to be connected etc., here by judging whether to connect base station N by X2 interface 1108, judge whether to exist X2 to connect.
Updating block 110373 is used for upgrading RRM measuring set.The action that can carry out comprises: continue to use CRS resource distribution and upgrade RRM measuring set, adjacent base station configuration CSI-RS resource and upgrade RRM measuring set, dominant base configuration CSI-RS resource and upgrade RRM measuring set and do not ignore this adjacent TP and do not upgrade RRM measuring set.
Specifically, updating block 110373 is the timing that is judged as NO to scene at judging unit 110372, upgrade RRM collection based on cell specific reference signal CRS, in the time that judging unit 110372 is sure to being judged as of scene, upgrade RRM collection based on channel state information reference signals CSI-RS.And, the situation of carrying out interface judgement at judging unit 110372, updating block 110373 is only in the case of existing between the base station under being judged as adjacent node and mobile terminal affiliated base station X2 interface is connected, and the RRM collection carrying out based on channel state information reference signals CSI-RS upgrades.
Fig. 8 is the cut-away view that represents the micro-node R RH 1102 being connected by optical interface 1107 with base station.
As shown in Figure 8, micro-node R RH 1102 has: frequency converter 502, carries out frequency spectrum shift to the baseband signal of passing through Optical Fiber Transmission 501 from base station, at down direction, make baseband signal become band signal by frequency conversion, at up direction, make band signal become baseband signal by frequency conversion; Analog to digital converter 503, at down direction, is converted to analog signal by digital signal, at up direction, analog signal is converted to digital signal; Filter 504, some frequency component of filtering from signal, to suppress and to prevent from disturbing; Power amplifier 505, carries out power amplification to meet transmitting power requirement to signal; Duplexer 506, will transmit and receive signal isolated, guarantee that the two can normally work; And antenna 507, transmitting receives wireless signal.
Below describe RRM measuring set in detail and upgrade the process that the control unit 11037 RRM measuring set of carrying out is upgraded.
Fig. 9 is the flow chart of the RRM measuring set configuration that represents that the first execution mode relates to.
As shown in Figure 9, first, after the RRM measuring set renewal process for certain mobile terminal (UE) starts, retrieval unit 110371 reads adjacent TP information 11034, travels through the main service corresponding adjacent TP of TP (step 701) of this UE.
Then, retrieval unit 110371 is retrieved TP information 11032, finds the affiliated scene (step S702) of this adjacent TP.In step 703, judge whether the affiliated scene of this adjacent TP is scene 4.If be judged as "No", that is to say, belong to multiple nodes and have the scene of same cells identifier, forward step 706 to, continue to use signal quality measured based on CRS, upgrade RRM measuring set (step 7010).If be judged as "Yes", forward step 704 to.
In step 704, judging unit 110372 judges whether this adjacent TP belongs to the base station different from the main serving BS of UE.Determination methods is, according to the base station IDs 40322 in TP information 11032, judgement and UE main served base station IDs that the TP ID 40320 of TP is corresponding and the corresponding base station IDs of TP ID40320 of this adjacent TP.When both are identical, be judged as "No", forward step 709 to, this base station is adjacent TP configuration CSI-RS resource for this reason, thereby updating block 110373 upgrades RRM measuring set (step 7010).In the time that both are different, be judged as "Yes", forward step 705 to.
In step 705, retrieval unit 110371 is retrieved macro base station X2 information 11033, in the multiple adjacent base station 40332 that judgement has X2 to connect with dominant base 40331, whether comprise the base station that this adjacent TP is corresponding, if do not comprised, forward step 708 to, ignore this adjacent TP, UE will no longer measure the signal quality of this TP, be the CSI-RS resource no longer configuring in RRM measuring set corresponding to this TP, thereby do not carry out the renewal of RRM measuring set.If comprised, forward step 707 to.
In step 707, the RRM measuring set update module 11037 of adjacent base station is adjacent TP configuration CSI-RS resource for this reason, thereby updating block 110373 upgrades RRM measuring set (step 7010).
Then, come back to step 701, travel through next adjacent TP.
In the first embodiment, centralized control unit 1103 forms and is illustrated as the inside of base station, but part relevant with signal measurement in centralized control unit also can be formed as signal measurement apparatus separately, or implemented in the server that is connected with base station of embedding etc.
In the first embodiment, as the interface between macro base station and other macro base stations, use X2 interface, use optical interface as the interface between micro-node of macro base station and its subordinate, but the classification of interface is also not only confined to this certainly, as long as can realize corresponding transfer of data, can be also other interface class.
In the first embodiment, take the scene 3 in 3GPP and scene 4 as example, the apparatus and method of measuring-signal in the heterogeneous network that is mixed with different scenes have been described, but, also can use the scene in existing other communication standards, or when the following scene that occurs new communication standard, as long as definition in standard has multiple nodes to have the scene of same cells identifier and multiple node to have the scene of different districts identifier, just can implement the present invention.And, even part of nodes shares in the situation of a cell identifier in Yi Ge community, also can implement the present invention, in this case, the community that exists part of nodes to share the situation of a cell identifier is considered as to scene 4 and is processed.
In the flow process shown in Fig. 9, in order to save the flow time of the adjacent TP of traversal, in step 704, judge that whether adjacent node belongs to the base station of same community with the main service node of terminal, and preserve macro base station X2 information 11033 in order to determine the annexation between base station, judge in step 705 state that X2 connects.When but X2 has connected mutually between definite base station number of cells is less, also can omit above step.
In addition, the order of each determining step is not limited in the order in Fig. 9, can first judge whether that interface carries out the judgement of scene etc. again, carries out flow process with different judgement orders.
(the second execution mode)
Upgrade and process except the RRM measuring set that illustrates in the first execution mode, renewal and then expansion multiple business that signal measurement apparatus of the present invention can also be based on RRM measuring set, thus realize the diversified service based on scene judgement basis.
Figure 10 is the internal structure schematic diagram of the macro base station (grand TP) in the heterogeneous network that relates to of the second execution mode.
Macro base station (grand TP) in the second execution mode is compared with the first execution mode, difference is except RRM measuring set is upgraded relevant Component units, also there are other Component units that branch out for carrying out upgrading based on RRM measuring set result, stress and the first execution mode difference at this, quote the explanation in the first above execution mode for the place identical with the first execution mode, and omit detailed explanation.
As shown in figure 10, in base station 1, have: X2 interface 408, optical interface 407, centralized control unit 403, user data cache 404, base band signal process 405 and radio-frequency module 406.
Wherein, the structure of X2 interface 408, optical interface 407, user data cache 404, base band signal process 405 and radio-frequency module 406 is identical with the first execution mode with effect, therefore detailed.
The centralized control unit 403 of present embodiment is controlled micro-node of macro base station and its subordinate, comprises memory and processor, is responsible for respectively relevant data storage and the algorithm of Radio Resource control.
Wherein, in memory, store: user profile 4031, TP information 4032, macro base station X2 information 4033, adjacent TP information 4034, signal quality information 4035, RRM measuring set information 4036, CoMP measuring set information 4037 and channel condition information 4038.These information will be carried out real-time update in each dispatching cycle.
Wherein, list item in user profile 4031, TP information 4032, macro base station X2 information 4033, adjacent TP information 4034, signal quality information 4035 and RRM measuring set information 4036 and information type are identical respectively with user profile 11031, TP information 11032, macro base station X2 information 11033, adjacent TP information 11034, signal quality information 11035 and RRM measuring set information 11036 in the first execution mode, therefore quote the content in the first execution mode, and omit detailed explanation.
Figure 11 is the exemplary plot of the CoMP measuring set information 4037 of storing in centralized control unit.Maximum measuring set size N=3 in this example.CoMP measuring set information 4037 is being stored the RS to corresponding TP in the user configured CoMP measuring set of each CoMP.Base station configures this CoMP measuring set to each CoMP user according to CoMP measuring set information 4037.CoMP measuring set information 4037 included list items have: UE ID 40370, main TP RS configuration 40371 and multiple adjacent TP RS configuration 40372.
Figure 12 is the exemplary plot of the channel condition information 4038 stored in centralized control unit.Maximum measuring set size N=3 in this example.Channel condition information 4038 is being stored each CoMP user's CSI (Channel State Information) information.CSI comprises PMI (Precoding Matrix Indicator, pre-coding matrix mark), RI (Rank Indicator, order mark), CQI (Channel QuanlityIndicator, channel quality identification).According to the CSI-RS resource distribution of CoMP measuring set, user can adopt different feedback methods to carry out the feedback of channel quality flexibly.
The method of simple, intuitive is the feedback (user can feed back respectively the CSI information for different CSI-RS resources) based on each CSI-RS resource.
In order to make base station obtain feedback result more accurately, realize relevant CoMP operation, also have some more senior CSI feedback methods.Such as, across the feedback of CSI-RS resource, (user is except feeding back respectively the CSI information for different CSI-RS resources, also to feed back the phase information of each CSI-RS resource, carry out JT:Joint Transmission operation for base station side), (user can feed back respectively the CSI information for different CSI-RS resources to polymerization CQI feedback, also will feed back the CQI information of carrying out JT and be operating as hypothesis with multiple TP.Carry out JT operation for base station side), polymerization feedback (channel that user goes out to its CSI-RS resource estimation for configuration, combines and quantize and feedback, the CSI information of a polymerization of feedback) etc.
The list item that channel condition information 4038 comprises has: UE ID 40380, main TP channel condition information 40381 and multiple cooperation TP channel condition information 40382.
UE ID 40380 is identifiers of identification user, for the different user of diffServ network.Main TP channel condition information 40381 represents main TP that UE measures and CSI (ChannelState Information, the channel condition information between it.CSI comprises RI (Rank Indicator, order indication), PMI (Precoding Matrix Indicator, pre-coding matrix indication), CQI (Channel QualityIndicator, channel quality indication).The cooperation TP that the TP channel condition information 40382 that cooperates represents that UE measures and the CSI between it.
In centralized control unit 403, processor moves by the operation flow that can provide is provided.Wherein, except illustrated in the first embodiment for carrying out the modules of renewal of RRM measuring set, also comprise mobility management unit 4039, signal quality measured administrative unit 40310 and CoMP administrative unit 40311 based on CRS/CSI-RS.Wherein the major function of the signal quality measured administrative unit 40310 based on CRS/CSI-RS is according to the residing scene of each UE and adjacent TP information, configuring RRM measuring set and guides UE to carry out signal quality measured process, therefore, also comprise the RRM measuring set illustrating in the first execution mode and upgrade control unit at interior (not shown in Figure 10).In addition, RRM measuring set renewal control unit also can be used as the separate modular in centralized control unit.Again for convenient, RRM measuring set is upgraded to control unit as the inside composition module of the signal quality measured administrative unit 40310 based on CRS/CSI-RS and not shown.
CoMP administrative unit 40311 is poor by the received signal quality of the each Cell Edge User of calculating, for the user who meets CoMP requirement, for its configuration CoMP measuring set and guides UE to carry out channel condition information measurement.Specifically, according to the RRM collection after upgrading based on channel state information reference signals CSI-RS, from multiple adjacent nodes, select the set of node for coordinated multipoint transmission CoMP, thereby according to the channel condition information CSI of the adjacent node feedback from set of node, judge the classification of coordinated multipoint transmission CoMP operation.Detailed method aftermentioned.
Describe the signal quality measured management process based on CRS/CSI-RS below in detail.Figure 13 is the flow chart that the signal quality measured management based on CRS/CSI-RS is shown.
First, the signal quality measured administrative unit 40310 based on CRS/CSI-RS travels through user profile 4031, according to priority by high sequence call on earth the user's (step 601) in free time/connection status.Then, retrieve these users' RRM measuring set information 4036 (steps 602).Judge the RS configuration (step 603) that whether only comprises main service TP in user's RRM measuring set.In the time that judged result is "No", finish active user and travel through next user.In the time that judged result is "Yes", proceed to step 604.
In step 604, read subscriber signal quality information 4035, picked up signal quality information.Then, judge whether this signal quality collects and measure thresholding TN (step 604) lower than the neighbour who specifies.In the time that judged result is "No", finish active user and travel through next user.In the time that judged result is "Yes", proceed to step 606.
In step 606, the RRM measuring set illustrating in the first embodiment configures, and configures the RRM measuring set of this UE according to the flow process shown in Fig. 9, therefore omits detailed explanation herein.Then,, in step 607, send RRM measuring set configuration messages to user.The concrete form aftermentioned of message.
Then, receive the signal quality information (step 608) of the corresponding RRM measuring set of UE report.The concrete form aftermentioned of message.And then according to these signal quality information update signal quality information 4033 (steps 609).
On the renewal basis of RRM measuring set configuration, can carry out other and activate business.Figure 14 expresses the general flow chart of the centralized control unit that the second execution mode relates to.
As shown in Figure 9, having carried out the configuration of RRM measuring set and having upgraded UE measurement result (step 1201) afterwards, enter CoMP management (step 1202), this is optional flow process.For the user who meets CoMP condition, carry out this flow process.Concrete grammar aftermentioned.Then carry out mobile management (step 1203).This is also optional flow process.For the user who meets mobile management, carry out this flow process.Concrete grammar aftermentioned.
Describe the process of CoMP management below in detail.Figure 15 is the flow chart of the CoMP management that illustrates that the second execution mode relates to.
First, CoMP administrative unit 40311 read signal quality informations 4035, for all UE in connection status, calculate the poor signal quality of its adjacent TP and main service TP, for the UE in notconnect state, do not operate (step 801).
If difference is less than the CoMP thresholding Tc of predefined, proceed to step 803.Otherwise end process (step 802).In step 803, determine TP collection corresponding to CoMP measuring set.The method of concrete decision and standard can define in advance.For example, when the difference of the RSRP/RSRQ value of certain adjacent TP and main service TPRSRP/RSRQ value is less than CoMP thresholding Tc, the corresponding TP that this TP is just added into this CoMP measuring set concentrates.Or define in advance a measuring set size S.S-1 the TP that signal quality is only second to main service TP adds TP corresponding to CoMP measuring set to concentrate.Or should meet CoMP thresholding Tc, be no more than again the restriction of measuring set size S.
Then, give above-mentioned TP collection configuration CSI-RS resource, composition CoMP measuring set information is also notified UE (step 804).
Specifically, CoMP administrative unit 40311, according to macro base station X2 information 4033, is retrieved the affiliated base station of each adjacent TP in the X2 of serving BS connection.If do not belong to same base station, but exist X2 to connect, send CSI-RS resource requirement information to the each adjacent base station under adjacent TP, obtaining from each adjacent base station is the CSI-RS resource of its TP dynamic-configuration.Thereby upgrade CoMP measuring set information.If belong to same base station, distribute corresponding CSI-RS resource to TP corresponding in this base station.Upgrade CoMP measuring set information.After upgrading CoMP measuring set information, by CoMP measuring set notice UE.
Then, receive the signal condition information (CSI) (step 805) from CoMP measuring set of UE feedback, according to these signal condition information (CSI) update signal state information 4038 (steps 806).
Then carry out the judgement of CoMP transmission policy.Specifically, according to the CSI information of feedback, judge to user to adopt which kind of CoMP operation.Such as JT (Joint Transmission, joint transmission), DPS/DPB (Dynamic Point Selection/Dynamic Point Blanking, dynamic transmission point selection/dynamic transmission point is mourned in silence), CS/CB (Coordinated Scheduling/CoordinatedBeamforming, the moulding of cooperative scheduling/cooperative beam) etc. (step 807).According to the judgement of CoMP transmission policy, user is carried out to CoMP operation (step 808).
Figure 16 is the flow chart of the mobile management that illustrates that the second execution mode relates to.
First, mobility management unit 4039 read signal quality informations 4035.For all UE in connection or idle condition, calculate the poor signal quality of its adjacent TP and main service TP, for the UE in disconnected or idle condition (being the UE of off-mode), do not operate (step 901).
Judge whether difference meets switching or cell reselection thresholding (step 902), switches or cell reselection thresholding if difference meets, and proceeds to step 903.Otherwise finish.
In step 903, switch (for the UE of connection status) or cell reselection (for the UE of idle condition) process.
The sequential chart of the utilized integration below signal quality measured management based on CRS/CSI-RS, CoMP management and mobile management, illustrates the Signalling exchange state in network.
Figure 17 is the master controller of each BS and user's typical Signalling exchange figure.As shown in figure 17, in step 1001, UE receives the reference signal from each TP.And UE periodically sends measurement report to its main service TP, then in the master controller of main serving BS, processes (step 1002).In measurement report message, comprise the channel quality information of this UE service main with it TP and adjacent cell TP.
Relevant information in IE in RRC:MeasurementReport message (Information Element/ message elements) MeasResults is as shown in table 1.
Table 1:
Master controller starts to carry out the signal quality management process based on CRS/CSI-RS.First be that adjacent collection is measured judging process, whether the signal that judges main service TP lower than must degree, need to carry out the measurement (step 1003) of adjacent collection.If so, enter the process of step 1004.
Step 1004 (comprising step 10041~step 10045) is the RRM measuring set layoutprocedure that the first execution mode illustrated.
In step 10041, master controller BS1, according to the flow chart of Fig. 9, judges the scene kind of adjacent TP, judges whether to belong to scene 4, and whether belongs to different base station and have X2 to be connected with this TP.
In step 10042, source base station (base station under main service TP) sends CSI-RS configuration request message to target BS (base station under adjacent TP).CSI-RS configuration request message is for supporting the type of message of the signal quality measured new definition based on CSI-RS in the present invention.Send between base station by X2 interface.For instance, the format content of X2AP:CSIRS_Resource ConfigurationRequest is as shown in table 2.
Table 2:
In step 10043, the master controller of target BS starts to be configured for signal quality measured CSI-RS resource for corresponding TP.The relevant information that each CSI-RS resource comprises is as shown in table 3.
Table 3:
In step 10044, source base station is received the CSI-RS configuring request response message that target BS is beamed back.Be for example X2AP:CSIRS_Resource Configuration Request Acknowledgement, concrete message content is as shown in table 4.
Table 4,
In step 10045, upgrade RRM measuring set information.The example of RRM measuring set information is as shown in table 5.
Table 5:
After the renewal of RRM measuring set finishes, in step 1005, master controller sends RRM measuring set configuration messages.Can send RRM Measurement Setinformation element by rrc layer message and notify UE.
In step 1006, UE, according to RRM measuring set configuration messages, carries out after mass measurement, periodically sends measurement report to its main service TP, then in the master controller of main serving BS, processes.In measurement report message, comprise the channel quality information of this UE service main with it TP and adjacent cell TP.For example that relevant information in IE in RRC:MeasurementReport message (Information Element/ message elements) MeasResults is as shown in table 6.
Table 6:
In step 1007, source base station master controller update signal quality information 4035.
In step 1008, according to the step 801~step 802 in the flow chart shown in Figure 15, carry out CoMP judgement.
In step 1009, according to other steps in the flow chart shown in Figure 15, carry out the configuration of CoMP measuring set.If there is the TP that meets CoMP condition to belong to adjacent base station, and there is X2 to connect, the processing of completing steps 10091~step 10093.Otherwise will in this base station, complete the configuration of CoMP measuring set.
In step 10091, source base station (base station under main service TP) sends CSI-RS configuration request message to target BS (base station under adjacent TP).Measure across the CSI based on CSI-RS of base station for supporting.This message sends between base station by X2 interface.
In step 10092, the master controller of target BS starts to be configured for for corresponding TP the CSI-RS resource that CSI measures.The relevant information that CSI-RS resource comprises is as shown in table 7.
Table 7:
In step 10093, source base station is received the CSI-RS configuring request response message that target BS is beamed back.
In step 10094, upgrade CoMP measuring set information.The content of CoMP measuring set is as shown in table 8.
Table 8:
In step 1010, master controller BS1 sends CoMP measuring set configuration messages to UE.By rrc layer message, the CSI-RS resource notification UE of CoMP measuring set configuration.
In step 1006, after UE measures according to received CoMP measuring set configuration messages, periodically send measurement report to its main service TP, then in the master controller of main serving BS, process.In measurement report message, comprise the channel quality information of this UE service main with it TP and adjacent cell TP.
In step 1011, UE feedback signal state information.
In step 1012, master controller BS1 update signal state information.
In step 1013, master controller BS1 carries out the judgement of CoMP transmission policy.
In step 1014, multiple TP carry out CoMP transmission to UE, thereby complete CoMP management.
Then, enter mobile management, in step 1015, master controller BS1 carries out mobility judgement.If meet mobility condition, carry out step 1016.
In step 10161, master controller BS1 sends switching/cell re-selection request message to the master controller BS2 of the community that will switch.
In step 10162, master controller BS2 returns to switching/cell re-selection request to master controller BS1 and completes message.
Thereby in step 1017, switch/cell reselection of UE.
In the second execution mode, in Figure 13 for save traversal user profile flow time, in step 603 first judges user's RRM measuring set, whether only comprise the RS configuration of main service TP, if not only comprise the RS configuration of main service TP, just think and do not need the renewal of RRM measuring set.But, in order to improve the precision of measurement, also can omit step 603, each user's RRM measuring set is upgraded.
In the second execution mode, as activating business, comprise CoMP management, mobile management etc., but also can comprise one of them or append other business, as long as application or certain applications are to the RRM measuring set after upgrading in the present invention, just can implement the present invention.
(embodiment)
Exemplify below and in the time that certain mobile terminal UE is accepted service, implement example of the present invention and describe.
Imagine in the coverage of a UE in TP1.Information in this moment central processing unit in the user profile 4031 of correspondence is shown in table 9.
Table 9:
UE ID | State | Priority | Main service TP ID |
UE1 | Connect | P1 | TP1 |
Shown in information table 10 in TP information 4032 corresponding to this moment.
Table 10:
TP ID | Community ID | Base station IDs | Scene | |
| Cell1 | BS1 | 3 |
The reference signal CRS1 that this UE is adopted as cell1 configuration always carries out signal quality (RSRP/RSRQ) measurement.And periodically sending measurement report to network, the information being stored in signal quality information 4035 is shown in table 11.
Table 11:
Along with the movement of UE, when this UE is near the coverage edge of TP1.When the RSRP value periodically reporting or RSRQ value collect while measuring thresholding lower than the neighbour of network definition, network indicates UE can start adjacent cell search procedure, is that it configures RRM measuring set according to the flow process shown in Fig. 9.
Network reads the adjacent TP information 4034 that UE main service TP (TP1) is corresponding, as shown in table 12.
Table 12:
Central controller judges the state of adjacent TP, while finding that TP6, TP7, TP8 belong to scene 4, reads TP information 4032, finds that TP6, TP7, TP8 belong to BS2, belongs to different base station from TP1.Thereby read macro base station X2 information 4033, as shown in table 13.
Table 13:
Base station IDs | Base station IDs | Base station IDs | Base station IDs |
BS1 | BS2 | BS3 ... |
Then central controller is judged between base station BS 1 and base station BS 2 and is had X2 interface.So BS2 should carry out signal quality measured for TP6, TP7, TP8 configuration CSI-RS resource.
Like this, BS1 sends CSI-RS configuration request message to BS2.BS2 is respectively TP6, TP7, TP8 configuration CSI-RS resource, and sends CSI-RS configuration messages to BS1.
Network upgrades the RRM measuring set information of this UE, and is stored in RRM measuring set information, as shown in table 14.
Table 14:
And main service node passes through RRC message RRM measuring set configuration notification UE.UE starts carry out signal quality measured and send measurement report to network cycle according to the RS information comprising in RRM measuring set.After main service node is received, update signal quality information 4035, as shown in Table 15.
Table 15:
Afterwards, central controller, according to the flow process of Figure 15 and Figure 16, judges according to the poor signal quality of coming autonomous TP and adjacent TP respectively whether UE should carry out CoMP operation or switching.CoMP operation and handover operation are optional process, and both are independently occurred by Event triggered.
Suppose now TP1 and TP7 poor signal quality, TP1 with and the poor signal quality of TP8 fall into CoMP thresholding, for TP1, TP7 and TP8 are configured for the CSI-RS resource of measuring CSI.And start CoMP measure.
Suppose (before RRM measuring set is upgraded next time) after of short duration measuring period, signal quality changes.TP1 with and the poor signal quality of TP6 fall into handoff threshold, central controller instructs UE to switch to TP6 by TP1.
By moving in above heterogeneous network, can realize the mobility measurements in the heterogeneous network being formed by grand node and micro-node, and can improve the precision of signal measurement in mobility measurements.
Although several execution mode of the present invention has been described, these execution modes are to propose as an example, are not intended to limit invention scope.These new execution modes can be implemented in other various modes, can in the scope that does not depart from inventive concept, carry out various omissions, displacement and change.These execution modes or its distortion are included in invention scope or purport, and are also contained in the invention of claims record and the scope of equivalence thereof.
Claims (12)
1. a signal measurement apparatus, for the heterogeneous network measuring-signal being made up of grand node and micro-node, is characterized in that, comprising:
Retrieval module, the scene information of the retrieval adjacent node adjacent with terminal equipment in database, described scene information at least comprises node formation and the node identifier information in this adjacent node scene of living in;
Judge module, according to the result for retrieval of above-mentioned retrieval module, judges whether described adjacent node belongs to multiple nodes and have the scene of same cells identifier,
Update module, in the judged result of above-mentioned judge module when negating, upgrade RRM collection based on cell specific reference signal CRS, for certainly time, upgrade RRM collection based on channel state information reference signals CSI-RS in the judged result of above-mentioned judge module.
2. signal measurement apparatus according to claim 1, is characterized in that,
Above-mentioned judge module also judges whether the corresponding grand node of described adjacent node is the grand node of main service of terminal equipment, in judged result whether regularly, further judge the corresponding grand node of described adjacent node and whether and between the grand node of main service of terminal equipment to have interface
Above-mentioned update module only, in the situation that there is interface, carries out upgrading based on the above-mentioned RRM collection of channel state information reference signals CSI-RS.
3. signal measurement apparatus according to claim 1, is characterized in that,
The scene that above-mentioned judge module judges is the scene 4 in third generation partner program 3GPP.
4. signal measurement apparatus according to claim 1, is characterized in that,
Also have signal quality measured administration module, this signal quality measured administration module judges that whether the signal quality of main service node of user terminal is lower than specified thresholds,
During whether lower than specified thresholds, carry out the renewal of RRM collection at the signal quality that is judged as main service node.
5. signal measurement apparatus according to claim 1, is characterized in that,
Also there is CoMP administration module, described CoMP administration module is according to the RRM collection after upgrading based on channel state information reference signals CSI-RS, from multiple adjacent nodes, select the set of node for coordinated multipoint transmission CoMP, thereby according to the channel condition information CSI of the adjacent node feedback from set of node, judge the classification of coordinated multipoint transmission CoMP operation.
6. signal measurement apparatus according to claim 1, is characterized in that,
Also have mobile management module, described mobile management module, according to the RRM collection after upgrading, is calculated the signal quality difference between main service node and each adjacent node, switches main service node according to calculated signal quality difference.
7. a signal measurement method, for the heterogeneous network measuring-signal being made up of grand node and micro-node, is characterized in that, comprising:
Searching step, the scene information of the retrieval adjacent node adjacent with terminal equipment in database, described scene information at least comprises node formation and the node identifier information in this adjacent node scene of living in;
Determining step, according to the result for retrieval of above-mentioned searching step, judges whether described adjacent node belongs to multiple nodes and have the scene of same cells identifier,
Step of updating, in the judged result of above-mentioned determining step when negating, upgrade RRM collection based on cell specific reference signal CRS, for certainly time, upgrade RRM collection based on channel state information reference signals CSI-RS in the judged result of above-mentioned determining step.
8. signal measurement method according to claim 7, is characterized in that,
In above-mentioned determining step, also judge whether the corresponding grand node of described adjacent node is the grand node of main service of terminal equipment, in whether timing of judged result, whether further judge the corresponding grand node of described adjacent node and the grand node of main service of terminal equipment between there is interface
In above-mentioned step of updating, only, in the situation that there is interface, carry out upgrading based on the above-mentioned RRM collection of channel state information reference signals CSI-RS.
9. signal measurement method according to claim 7, is characterized in that,
The scene judging in above-mentioned determining step is the scene 4 in third generation partner program 3GPP.
10. signal measurement method according to claim 7, is characterized in that,
Also there is signal quality measured management process, judge that whether the signal quality of main service node of user terminal is lower than specified thresholds,
During whether lower than specified thresholds, carry out the renewal of RRM collection at the signal quality that is judged as main service node.
11. signal measurement methods according to claim 7, is characterized in that,
Also there is CoMP management process, according to the RRM collection after upgrading based on channel state information reference signals CSI-RS, from multiple adjacent nodes, select the set of node for coordinated multipoint transmission CoMP, thereby according to the channel condition information CSI of the adjacent node feedback from set of node, judge the classification of coordinated multipoint transmission CoMP operation.
12. signal measurement methods according to claim 7, is characterized in that,
Also there is mobile management step, according to the RRM collection after upgrading, calculate the signal quality difference between main service node and each adjacent node, switch main service node according to calculated signal quality difference.
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Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102638840A (en) * | 2012-03-21 | 2012-08-15 | 新邮通信设备有限公司 | Radio resource management measurement method and system in long term evolution based on coordinated multiple points |
WO2012108807A1 (en) * | 2011-02-09 | 2012-08-16 | Telefonaktiebolaget L M Ericsson (Publ) | Point-dependent resource symbol configuration in a wireless cell |
WO2012115366A1 (en) * | 2011-02-22 | 2012-08-30 | Lg Electronics Inc. | Method of performing measurement at ue in wireless communication system and apparatus thereof |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2638726B1 (en) * | 2010-11-11 | 2014-08-27 | Telefonaktiebolaget LM Ericsson (PUBL) | Method and network node for configuring almost blank subframe transmission patterns for reducing intercell interference in an heterogeneous cellular radio communication system |
WO2012131612A1 (en) * | 2011-03-31 | 2012-10-04 | Marvell World Trade Ltd. | Channel feedback for cooperative multipoint transmission |
CN102548016B (en) * | 2012-01-16 | 2015-07-01 | 新邮通信设备有限公司 | Method for achieving UE random access of user equipment and system |
-
2012
- 2012-11-14 CN CN201210458026.1A patent/CN103813376A/en active Pending
-
2013
- 2013-10-23 WO PCT/CN2013/085787 patent/WO2014075542A1/en active Application Filing
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2012108807A1 (en) * | 2011-02-09 | 2012-08-16 | Telefonaktiebolaget L M Ericsson (Publ) | Point-dependent resource symbol configuration in a wireless cell |
WO2012115366A1 (en) * | 2011-02-22 | 2012-08-30 | Lg Electronics Inc. | Method of performing measurement at ue in wireless communication system and apparatus thereof |
CN102638840A (en) * | 2012-03-21 | 2012-08-15 | 新邮通信设备有限公司 | Radio resource management measurement method and system in long term evolution based on coordinated multiple points |
Non-Patent Citations (1)
Title |
---|
ALCATEL-LUCENT: "Further details of COMP Scenarios for evaluation especially Scenario 4", 《3GPP TSG RAN WG1#64 R1-110802》 * |
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104811228A (en) * | 2015-03-23 | 2015-07-29 | 酷派软件技术(深圳)有限公司 | Cooperation set constructing method, wireless node and service base station |
WO2016150007A1 (en) * | 2015-03-23 | 2016-09-29 | 宇龙计算机通信科技(深圳)有限公司 | Cooperation set constructing method, wireless node, and serving base station |
CN104811228B (en) * | 2015-03-23 | 2018-11-06 | 酷派软件技术(深圳)有限公司 | A kind of method, radio node and the serving BS of structure cooperation set |
WO2018072204A1 (en) * | 2016-10-21 | 2018-04-26 | 华为技术有限公司 | Method and device for assigning antenna port |
CN109076368A (en) * | 2016-10-21 | 2018-12-21 | 华为技术有限公司 | A kind of antenna port configuration method and device |
US10673495B2 (en) | 2016-10-21 | 2020-06-02 | Huawei Technologies Co., Ltd. | Antenna port configuration method and apparatus |
CN109302726A (en) * | 2017-07-25 | 2019-02-01 | 华为技术有限公司 | Measurement method, terminal device and access network equipment |
US11297517B2 (en) | 2017-07-25 | 2022-04-05 | Huawei Technologies Co., Ltd. | Measurement method, terminal device, and access network device |
CN110603839A (en) * | 2017-08-31 | 2019-12-20 | 索尼公司 | Electronic device and method for wireless communication |
US12096265B2 (en) | 2017-08-31 | 2024-09-17 | Sony Group Corporation | Electronic device and method for wireless communications |
CN111615141A (en) * | 2019-04-09 | 2020-09-01 | 维沃移动通信有限公司 | Measurement method, measurement configuration method, terminal and network equipment |
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