CN102487527B - Heterogeneous network cell measuring method, apparatus and system thereof - Google Patents
Heterogeneous network cell measuring method, apparatus and system thereof Download PDFInfo
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Abstract
The invention discloses a heterogeneous network cell measuring method, an apparatus and a system thereof. The heterogeneous network cell measuring method comprises the following step that: a terminal measures a cell to be detected according to subframe measurement restriction information of the cell to be detected and cell measurement restriction information. In the invention, through carrying out radio resource management (RRM)/radio link monitoring (RLM) measurement to the cell, a base station notifies a UE of a subframe measurement resource restriction condition of the cell to be detected and whether the cell to be detected adopts the measurement restriction so that the UE can accurately carry out the RRM/ RLM measurement to the cell and signaling cost between the base station and the UE can be substantially reduced.
Description
Technical field
The present invention relates to a kind of wireless technical field, particularly relate to a kind of heterogeneous network cell measuring method, Apparatus and system.
Background technology
For realizing the requirement of high-speed data service to wireless system performance, at present as the International Organization for standardization such as 3GPP, WiMAX all consider to introduce a class novel radio node in system.They have lower transmitting power compared with macro base station, as pico base station, and femto base station and via node etc.As shown in Figure 1, the introducing of these new nodes makes system topology isomery more, thus defines the brand-new interference environment that a polytype node competes same wireless resource jointly.
For avoiding and reducing the mutual interference between heterogeneous network, 3GPP has set up enhancement interference coordination (Enhanced ICIC is called for short eICIC) job at present under the research framework of LTE-A.The interference that 3GPP proposes to be undertaken by coordinating time-domain resource minizone is avoided.Specifically, the part subframe of interference source community is set to near-space subframe (Almost Blank Subframe, be called for short ABS), and is disturbed community and is only disturbed serious UE at these subframe schedulings.Owing to only sending common pilot signal in ABS, and synchronously, broadcast (MIB and SIB1) and paging etc. control and data message on a small quantity, thus can significantly reduce the interference be disturbed in community suffered by UE.
As shown in Figure 2, the method that the interference that simple time domain interference coordination carries out minizone by coordination time-domain resource is avoided can to RRM (Radio Resource Management, being called for short RRM)/wireless link monitors that (Radio Link Monitoring, be called for short RLM) measures and brings certain problem.RRM measurement refers to that UE measures RSRP and the RSRQ value of this community and neighbor cell, and these values can be used as the foundation of cell merge and gravity treatment.But, if the UE being disturbed community or interference source community carries out RRM measurement to being disturbed community in all subframes, be disturbed seriously owing to being disturbed community pilot tone in non-ABS, thus cause possibly cannot carrying out RSRP measurement.On the other hand, in fact in non-ABS, do not carry out transfer of data owing to being disturbed community, the estimation of RSRQ can be caused excessively poor so carry out RRM measurement in all subframes.Contrary, if the UE being disturbed community or interference source community only carries out RRM measurement to interference source community in ABS, then due to interference source community pilot signal transmitted in ABS, cause the measured value of RSSI lower, cause the overestimate to RSRQ value.Table 1 is depicted as dissimilar UE to carry out institute's receivable resource of arriving when RRM measures to dissimilar community and limits.
Table 1
For the measurement resource restriction shown in support matrix 1, radio resource control (Radio Resource Control the is called for short RRC) signaling of three types can be adopted: 1, RRC signaling indicates the measurement resource of every PCI/PCI group to limit; 2, RRC signaling only indicates a kind of resource of measuring to limit, and this means the UE (grand, pico, femto) for a certain type, measures all types of community and all adopts identical measurement resource restriction; 3, RRC signaling indicates the measurement resource of this community and neighbor cell to limit, this means that the UE for a certain type is (grand, pico, femto), this community and neighbor cell can adopt different measurement resource restrictions, but all types of neighbor cell all must adopt identical measurement resource restriction.
The RRC signaling of above-mentioned 2nd and 3 types all will cause measurement result inaccurate.Although the RRC signaling of the 1st type can ensure measurement result entirely accurate, need to increase more signaling consumption for this reason.Current 3GPP determines, for FDD, the repetition period of resource restriction is 40ms; For TDD, the repetition period of the resource restriction of uplink and downlink timeslot proportioning Class1-5 is 20ms, and the repetition period of the resource restriction of uplink and downlink timeslot proportioning type 0 is 70ms, and the repetition period of the resource restriction of uplink and downlink timeslot proportioning type 6 is 70ms.This means, for each PCI needs 20 ~ 70 bits to carry out measurement resource restriction instruction.For FDD, compared with type 2, a UE with N number of neighbor cell needs 40 × N number of extra overhead bit; Compared with type 3, a UE with N number of neighbor cell needs the individual extra overhead bit of 40 × (N-1).
Summary of the invention
The object of the invention is to, a kind of heterogeneous network cell measuring method, Apparatus and system are provided, accurate RRM/RLM measurement is carried out to community while, reduce the signaling consumption between UE and base station.
For achieving the above object, according to an aspect of the present invention, a kind of heterogeneous network cell measuring method is provided, comprises: measure restricted information and cell measurement restricted information according to the subframe of the tested community obtained and described tested community is measured.
Wherein, described subframe is measured in restricted information, and whether the data instruction of each bit carries out the restriction of measurement resource to corresponding subframe, measures restricted information in corresponding subframe, carry out the restriction of measurement resource when measuring according to described subframe; Or described subframe measures the numbering of subframe measurement limitation arrangement in the set of all subframe measurement limitation arrangement that restricted information is tested community, find corresponding subframe according to described numbering and measure limitation arrangement, measure limitation arrangement according to described subframe and measure.
Described cell measurement restricted information is whether the tested community of instruction measures according to described subframe the data that restricted information adopts 1 bit measuring resource restriction; Or described cell measurement restricted information is need to measure according to described subframe the cell ID that restricted information carries out the tested community measuring resource restriction; Or described cell measurement restricted information is list, comprises needs in list and measure according to described subframe the cell ID that restricted information carries out the tested community measuring resource restriction; Determine whether tested community is measured restricted information according to described subframe and carried out the restriction of measurement resource when measuring according to described cell measurement restricted information.
Described cell measurement restricted information comprises: need to measure according to described subframe the frequency information that restricted information adopts the tested community measuring resource restriction; Or described cell measurement restricted information comprises: need to measure restricted information according to described subframe and adopt the frequency information of the tested community measuring resource restriction and indicate the tested community on described frequency information whether to adopt the data measuring 1 bit of resource restriction; Or described cell measurement restricted information comprises: need to measure according to described subframe frequency information and the cell ID that restricted information carries out the tested community measuring resource restriction; Or described cell measurement restricted information comprises: need to measure according to described subframe frequency information and the list that restricted information carries out the tested community measuring resource restriction, comprise the cell ID of the tested community on described frequency information in described list; Or described cell measurement restricted information is list, comprises needs in list and measure according to described subframe frequency information and the cell ID that restricted information carries out the tested community measuring resource restriction; Determine whether tested community is measured restricted information according to described subframe and carried out the restriction of measurement resource when measuring according to described cell measurement restricted information.
The subframe of the described tested community received measures restricted information and described cell measurement restricted information is sent by dedicated signaling or broadcast signaling.
In this method, the subframe of described tested community measures restricted information and cell measurement restricted information is that network side generates according to near-space subframe (ABS) configuration information of the type of tested community and interference source community.
Particularly, when described tested community is interference source community, described subframe measurement restricted information is used to indicate terminal and measures in all subframes, or measures on the non-ABS of interference source community, or measures on the common factor of the non-ABS of all interference source communities; Described cell measurement restricted information is used to indicate corresponding interference source community and measures according to described subframe measurement restricted information; Or when described tested community is interfered cell, described subframe measurement restricted information is used to indicate terminal and measures on the ABS of interference source community, or measures on the common factor of the ABS of all interference source communities; Described cell measurement restricted information is used to indicate corresponding interfered cell and measures according to described subframe measurement restricted information.
When described tested community is interference source community, when described subframe measurement restricted information is used to indicate terminal measurement neighbours interference source community, only measure at the common factor of the non-ABS of all neighbours' interference source communities; Or when described tested community is interfered cell, the terminal that described subframe measurement restricted information is used to indicate interfered cell is measured on the common factor of the ABS of all interference source communities; The common factor of the subframe measurement resource limitation arrangement of terminal all disturbed cell-of-origins in its coverage of interference source community is measured; Or described subframe is when measuring the community that restricted information is used to indicate as interference source and interfered cell while that terminal measuring, its common factor as the measurement resource restriction of interference source and interfered cell carries out.
For achieving the above object, according to another aspect of the present invention, provide a kind of cell measurement device, comprising: measurement module, the subframe for the tested community according to acquisition measures restricted information and cell measurement restricted information is measured described tested community.
In addition, this device also comprises:
Receiver module, measures restricted information and described cell measurement restricted information for the subframe receiving the described tested community that base station is sent by dedicated signaling or broadcast signaling.
Preferably, this device also comprises: memory module and search module, wherein: described memory module, measures limitation arrangement for storing the polytype subframe pre-set; Described receiver module, sends to comprise and measures for subframe limitation arrangement to measure the tested community of numbering in limitation arrangement set subframe in all subframes for receiving base station and measure restricted information; Describedly search module, measure limitation arrangement for the subframe of searching described numbering corresponding from described memory module; Described measurement module, measures described tested community for measuring limitation arrangement according to the described subframe found.
For achieving the above object, according to another aspect of the present invention, there is provided a kind of and measure indicating device, comprising: subframe measures restricted information generation module, measure restricted information for the subframe generating tested community according to the type of tested community and the ABS configuration information of interference source community; Cell measurement restricted information generation module, for generating the cell measurement restricted information of tested community according to the type of tested community.
Wherein, described subframe measures restricted information generation module, for when described tested community is interference source community, generate indicating terminal to measure in all subframes, or measure on the non-ABS of interference source community, or the subframe carrying out measuring on the common factor of the non-ABS of all interference source communities measures restricted information; When described tested community is interfered cell, generates indicating terminal and measure on the ABS of interference source community, or the subframe carrying out measuring on the common factor of the ABS of all interference source communities measures restricted information; Described cell measurement restricted information generation module, indicates corresponding interference source community or interfered cell to carry out the cell measurement restricted information measured according to described subframe measurement restricted information for generating.
In addition, this device also comprises: signaling generation module, comprises for generating dedicated signaling or the broadcast signaling that described subframe measures restricted information and cell measurement restricted information; Or generate the dedicated signaling comprising described subframe measurement restricted information and the broadcast signaling comprising cell measurement restricted information; Or generate the dedicated signaling comprising described cell measurement restricted information and the broadcast signaling comprising subframe measurement restricted information.
For achieving the above object, according to another aspect of the present invention, provide a kind of heterogeneous network cell measurement system, comprising: measure indicating device, the subframe for generating tested community measures restricted information and cell measurement restricted information is sent to cell measurement device; Cell measurement device, for measuring described tested community according to described subframe measurement restricted information and cell measurement restricted information.
For achieving the above object, according to another aspect of the present invention, a kind of heterogeneous network cell measuring method is provided, comprise: measure restricted information according to the subframe of the Serving cell obtained and described Serving cell is measured, when the subframe obtaining described Serving cell measures restricted information, measure restricted information according to described subframe and measure in corresponding subframe.
In addition, when the subframe not receiving described Serving cell measures restricted information, all subframes are measured.
Preferably, the method also comprises: measure restricted information and cell measurement restricted information according to the subframe of the neighbor cell obtained and measure described neighbor cell.
For achieving the above object, according to another aspect of the present invention, there is provided a kind of and measure restricted information generation method, comprise: the subframe that network side generates described tested community according to the ABS configuration information of the type of tested community and interference source community measures restricted information and cell measurement restricted information, and sends to terminal.
Particularly, when described tested community is interference source community, network side generation is used to indicate terminal and measures in all subframes, or measure on the non-ABS of interference source community, or the subframe of carrying out the tested community measured on the common factor of the non-ABS of all interference source communities measures restricted information;
Or when described tested community is interfered cell, network side generation is used to indicate terminal and measures on the ABS of interference source community, or the subframe of carrying out the tested community measured on the common factor of the ABS of all interference source communities measures restricted information;
Network side generates and is used to indicate corresponding interference source community or interfered cell and measures according to described subframe the cell measurement restricted information that restricted information carries out measuring.
In addition, when described tested community is interference source community, network side generates the subframe measurement restricted information being used to indicate and only carrying out the tested community measured when terminal measures neighbours interference source community at the common factor of the non-ABS of all neighbours' interference source communities;
Or when described tested community is interfered cell, network side generates the terminal being used to indicate interfered cell and measures on the common factor of the ABS of all interference source communities, or the subframe of the common factor of the subframe measurement resource limitation arrangement of the terminal of interference source community all disturbed cell-of-origins in its coverage carrying out the tested community measured measures restricted information;
Or network side is when generating the community be used to indicate as interference source and interfered cell while that terminal measuring, the subframe that its common factor as the measurement resource restriction of interference source and interfered cell carries out the tested community measured measures restricted information.
Heterogeneous network cell measuring method of the present invention, Apparatus and system, by when carrying out RRM/RLM to community and measuring, the subframe of the notice tested community of UE, base station measures resource limited case and whether tested community adopts this measurement to limit, make UE accurately can carry out RRM/RLM measurement to community, and greatly reduce the signaling consumption between base station and UE.
Accompanying drawing explanation
Fig. 1 is wireless isomer hierarchical network architecture schematic diagram;
Fig. 2 is the schematic diagram of time domain interference coordination embodiment;
Fig. 3 is the flow chart that heterogeneous network cell measuring method of the present invention executes example;
Fig. 4 is the structure chart of cell measurement device embodiment of the present invention;
Fig. 5 is the structure chart that the present invention measures indicating device embodiment;
Fig. 6 is the structure chart of heterogeneous network cell measurement system embodiment of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described in detail.In following examples, terminal can be UE or other equipment, and network side can be base station or other equipment.
embodiment of the method
As shown in Figure 1, no matter the community of UE to which kind of type of which kind of type is measured, and all only exists and is subject to resource restriction and does not limit two kinds of situations by resource.Therefore, the present invention proposes, for reducing the additional signaling overhead produced, can notify whether the sub-frame resources limited case of the tested community of UE and tested community are subject to resource restriction when measuring, UE just can carry out Measurement accuracy to the RRM/RLM of tested community according to these information.
As shown in Figure 3, heterogeneous network cell measuring method embodiment of the present invention comprises the following steps:
Step 302, the subframe that base station sends tested community measures restricted information to UE, such as, it is a bitmap that subframe measures restricted information, and wherein N number of bit indicates whether N number of subframe in the ABS configuration cycle is ABS, wherein, 0 representative is ABS, and 1 representative is not ABS; Or it is contrary;
Subframe measures the numbering of subframe measurement limitation arrangement in the set of all subframe measurement limitation arrangement that restricted information also can be tested community, such as, the subframe measurement limitation arrangement pre-setting 10 types is stored in UE, base station adopts the numbering of subframe measurement limitation arrangement to send to UE at every turn needed for tested community, and UE searches corresponding subframe according to this numbering and measures limitation arrangement;
Step 304, base station sends the cell measurement restricted information of tested community to UE, and wherein, tested community can be the Serving cell at UE place, also can be the neighbor cell of Serving cell, UE place;
Such as, for the Serving cell at UE place, this cell measurement restricted information can indicate Serving cell whether to be subject to resource restriction when measuring in the following manner: whether (1) is measured restricted information employing according to described subframe with the data instruction Serving cell of 1 bit and measured resource restriction, as bit 0 represent Serving cell according to as described in subframe measure restricted information adopt measure resource restriction, bit 1 represents Serving cell and measures the restriction of restricted information employing measurement resource not in accordance with described subframe, or on the contrary; (2) Physical Cell Identifier (the Phys Cell Id of Serving cell can be comprised, be called for short PCI), comprise this Serving cell PCI and represent that Serving cell needs are measured restricted information according to described subframe and adopted the restriction of measurement resource, otherwise represent that Serving cell does not need to measure restricted information according to described subframe and adopts the restriction of measurement resource;
For the neighbor cell of Serving cell, UE place, this cell measurement restricted information can indicate whether be subject to resource restriction when measuring neighbor cell in the following manner: (1) neighbor cell 1 bit to certain or some scopes indicates whether that measuring restricted information according to described subframe adopts and measure resource and limit, as bit 0 represent according to as described in subframe measure restricted information adopt measure resource restriction, bit 1 represents measures the restriction of restricted information employing measurement resource not in accordance with described subframe, or on the contrary; (2) if the neighbor cell that instruction is measured only has one, the PCI of this neighbor cell can also only be comprised at cell measurement restricted information; (3) measure restricted information with list instruction according to described subframe and adopt the community ID measuring resource restriction, community is not in lists measured restricted information not in accordance with described subframe and is adopted and measure resource restriction, or on the contrary;
More preferably, because the PCI of the tested community of different frequency is likely identical, then can also add the frequency information of tested community at cell measurement restricted information, such as: (1) described cell measurement restricted information comprises: need to measure according to described subframe the frequency information that restricted information adopts the tested community measuring resource restriction;
(2) cell measurement restricted information comprises: need to measure restricted information according to described subframe and adopt the frequency information of the tested community measuring resource restriction and indicate the tested community on described frequency information whether to adopt the data measuring 1 bit of resource restriction;
(3) cell measurement restricted information comprises: need to measure according to described subframe frequency information and the cell ID that restricted information carries out the tested community measuring resource restriction;
(4) cell measurement restricted information comprises: need to measure according to described subframe frequency information and the list that restricted information carries out the tested community measuring resource restriction, comprise the cell ID of the tested community on described frequency information in described list;
(5) cell measurement restricted information is list, comprises needs and measure according to described subframe frequency information and the cell ID that restricted information carries out the tested community measuring resource restriction in list;
Step 306, UE measures restricted information according to subframe and cell measurement restricted information carries out RRM/RLM measurement to tested community, namely for measuring the tested community that restricted information carries out measuring resource restriction according to described subframe, measure restricted information according to described subframe and carry out RRM/RLM measurement in corresponding subframe, for measuring the tested community that restricted information carries out measuring resource restriction not in accordance with described subframe, all subframes carry out RRM/RLM measurement.
In the present embodiment, also can the prestore subframe of its Serving cell or neighbor cell of UE measures restricted information and cell measurement restricted information.In addition, subframe measures restricted information and cell measurement restricted information is not limited to above-mentioned citing, also can be set to other modes.
If when the subframe measurement limited case of Serving cell and neighbor cell is identical, base station only can send a subframe and measure restricted information, and the cell measurement restricted information that UE measures restricted information and the Serving cell received and neighbor cell according to this subframe is measured Serving cell and neighbor cell respectively.
In addition, whether UE, when carrying out RRM/RLM to Serving cell and measuring, comprises subframe measurement restricted information and measures, e.g., when receiving subframe and measuring restricted information, measure limited case measure according to this subframe in the message that can send according to base station; When not receiving subframe and measuring restricted information, then all subframes are measured.
In the present embodiment, subframe measures restricted information and cell measurement restricted information is generated by the ABS configuration information of base station according to the type of tested community and interference source community.Concrete generating mode is as follows:
(1) ABS that the subframe that as shown in Table 1, base station generates is measured only in interference source community when UE that restricted information and cell measurement restricted information be used to indicate any type measures interfered cell measures; Or measure in all subframes during the UE measurements interference cell-of-origin of any type; But, No Assets restriction during PUE measurement neighbours pico community;
(2) subframe that base station generates is measured when UE that restricted information and cell measurement restricted information be used to indicate any type measures interfered cell and is only measured on the common factor of the ABS of interference source community; Or only measure at the non-ABS of interference source community during the UE measurements interference cell-of-origin of any type; Or carry out on the common factor of above-mentioned measurement resource restriction during the community of the UE of any type as interference source and interfered cell measure one while; It is as shown in table 2 below,
Table 2
(3) subframe that base station generates is measured restricted information and cell measurement restricted information and is used to indicate when interfered cell UE measures interfered cell and only measures on the common factor of the ABS of all interference source communities; Or the common factor of the measurement resource restriction of all disturbed cell-of-origins in its coverage during interference source community UE measurement interfered cell is measured; Or any type UE measure neighbours interference source community time only measure at the common factor of the non-ABS of all neighbours' interference source communities; Or only measure at the non-ABS of service interference source community during interference source community UE measurement service interference source community; Or during the community of the UE of any type as interference source and interfered cell measure one while, its common factor as the measurement resource restriction of interference source and interfered cell carries out; It is as shown in table 3 below,
Table 3
Because the ABS configuration of interference source community may be different, interfered cell may disturb by multiple interference source community, and interference source community also may be subject to the interference of other interference source communities, therefore, adopt aforesaid way (2) to generate subframe and measure restricted information and cell measurement restricted information, UE can be made to measure the RRM/RLM of community more accurate.But, (2) are come to measure restricted information and cell measurement restricted information for UE configures subframe in the manner described above, the all communities will measured for UE all need to send subframe measurement restricted information and cell measurement restricted information, base station can be made to send signaling in large quantities to UE, signaling consumption is larger, therefore, in order to saving signaling expense, ensure again the accuracy measured simultaneously, aforesaid way (3) can be adopted to measure restricted information and cell measurement restricted information for UE configures subframe.
(4) the measurement resource for table 3 limits, and can do following simplification:
The subframe measurement restricted information that base station generates and cell measurement restricted information adopt when being used to indicate the UE measurement Serving cell of any type and measure resource restriction, as adopted the ABS of interference source macrocell when pico UE measures Serving cell, grand UE adopts the non-ABS of serving macro-cell when measuring Serving cell, adopt the ABS of interference source femto community when the grand UE in femto coverage measures Serving cell;
The UE that the subframe measurement restricted information that base station generates and cell measurement restricted information are used to indicate any type measures with adopting the restriction of measurement resource during frequency neighbours pico community, as the common factor of the ABS of interference source community or the ABS of all interference source communities, can be as shown in table 4 below; When tested community is by multiple interference source area interference, subset can think the common factor of ABS or non-ABS of multiple interference source community;
The subframe that base station generates is measured to adopt when UE that restricted information and cell measurement restricted information be used to indicate any type measures alien frequencies neighbours' macrocell and is measured resource restriction, as the non-ABS of neighbours' macrocell or the common factor of the non-ABS of all neighbours' macrocells or the ABS of interference source femto community; According to description above, when carrying out common frequency measurement, can be as shown in table 5 below.
Table 4
Table 5
In the step 302 of the present embodiment and step 304, base station can adopt dedicated signaling or broadcast signaling inform the subframe of the tested community of UE measure limited case and and tested community whether be subject to resource restriction when measuring.Dedicated signaling, for only sending to the signaling of a UE; Broadcast signaling, for can send to the signaling of multiple UE simultaneously.
When adopting dedicated signaling, by RRC Connection Reconfiguration (RRC connection is reshuffled) signaling, resource limitation arrangement is carried out to UE.RRC Connection Reconfiguration signaling comprises radio Resource Config Dedicated (dedicated radio resources configuration) and meas Config (measuring configuration) two IE, the former carries out radio-resource-configuration, and the latter carries out measurement configuration.Have following several to the configuration mode of RRCConnection Reconfiguration signaling:
Mode 1, increases a variable comprising 20 ~ 70 bits and measures restricted information to configure subframe in radio Resource Config Dedicated; Whether instruction Serving cell is subject to measuring resource restriction also can be placed in radio Resource Config Dedicated, by 1 bit instruction; Whether indicate the neighbor cell of certain or some PCI to adopt restriction resource can be placed in meas Config, this IE comprises meas Object To Add Mod List list, comprises the object that needs carry out measuring, i.e. Meas Object EUTRA in this list.The frequency comprising measurement in MeasObjectEUTRA (can be the community of same frequency, also can for alien-frequency district) and this frequency on the PCI of community that measures, corresponding each PCI increase by 1 bit information and indicate this PCI whether to be subject to measurement resource to limit;
Mode 2, increases a variable comprising 20 ~ 70 bits and measures restricted information to configure subframe in radio Resource Config Dedicated; Whether instruction Serving cell is subject to measuring resource restriction can be placed in radio Resource Config Dedicated, by 1 bit instruction; Whether indicate the neighbor cell of certain or some PCI to adopt restriction resource to be also placed in radio Resource ConfigDedicated, increasing a PCI list instruction needs to adopt the PCI measuring the community that resource limits;
Mode 3, increases a variable comprising 20 ~ 70 bits and measures restricted information to configure subframe in radio Resource Config Dedicated; Whether instruction Serving cell is subject to measuring resource restriction can be placed in radio Resource Config Dedicated, by 1 bit instruction; The neighbor cell of certain or some PCI is indicated whether to adopt restriction resource to be also placed in radio Resource ConfigDedicated, increase a list of frequency, wherein comprise a PCI list under each frequency, instruction needs to adopt frequency and the PCI of the community measuring resource restriction;
Mode 4, increases a variable comprising 20 ~ 70 bits and measures restricted information to configure subframe in radio Resource Config Dedicated; Whether instruction Serving cell and neighbor cell adopt restriction resource to be all placed in radio Resource Config Dedicated, in this IE, increase a PCI list, and instruction needs to adopt the PCI of the community measuring resource restriction;
Mode 5, increases a variable comprising 20 ~ 70 bits and measures restricted information to configure subframe in radio Resource Config Dedicated; Whether instruction Serving cell and neighbor cell adopt restriction resource to be all placed in radio Resource Config Dedicated, increase list of frequency in this IE, wherein comprise a PCI list under each frequency, instruction needs to adopt frequency and the PCI of the community measuring resource restriction;
Mode 6, in radio Resource Config Dedicated, increase a variable comprising 20 ~ 70 bits measure restricted information to indicate the subframe of Serving cell, and whether there is instruction Serving cell according to this variable and whether adopt restriction resource to measure; In radio Resource Config Dedicated, increase a variable comprising 20 ~ 70 bits measure restricted information to indicate the subframe of neighbor cell, the neighbor cell of certain or some PCI is indicated whether to adopt restriction resource can be placed in meas Config, this IE comprises meas Object To Add Mod List list, the object that needs carry out measuring is comprised, i.e. Meas Object EUTRA in this list.The frequency comprising measurement in MeasObjectEUTRA (can be the community of same frequency, also can for alien-frequency district) and this frequency on the PCI of community that measures, corresponding each PCI increase by 1 bit information and indicate this PCI whether to be subject to measurement resource to limit;
Mode 7, in radio Resource Config Dedicated, increase a variable comprising 20 ~ 70 bits measure restricted information to indicate the subframe of Serving cell, and whether there is instruction Serving cell according to this variable and whether adopt restriction resource to measure; In radio Resource Config Dedicated, increase a variable comprising 20 ~ 70 bits measure restricted information to indicate the subframe of neighbor cell, whether indicate the neighbor cell of certain or some PCI to adopt restriction resource to be also placed in radio Resource ConfigDedicated, increasing a PCI list instruction needs to adopt the PCI measuring the community that resource limits;
Mode 8, in radio Resource Config Dedicated, increase a variable comprising 20 ~ 70 bits measure restricted information to indicate the subframe of Serving cell, and whether there is instruction Serving cell according to this variable and whether adopt restriction resource to measure; In radio Resource Config Dedicated, increase a variable comprising 20 ~ 70 bits measure restricted information to indicate the subframe of neighbor cell, whether the neighbor cell of instruction certain or some PCI on a certain frequency adopts restriction resource to be also placed in radioResource Config Dedicated, increase a list of frequency, wherein comprise a PCI list under each frequency, instruction needs to adopt frequency and the PCI of the community measuring resource restriction.
When adopting broadcast signaling, SIB (system information block) type can be increased in broadcast signaling, have following several mode:
Mode 1, the variable instruction subframe comprising 20 ~ 70 bits in the SIB of the type measures resource limited case, also comprises a PCI list, and instruction needs to adopt measures the Serving cell of resource restriction and the PCI of neighbor cell;
Mode 2, the variable instruction subframe comprising 20 ~ 70 bits in the SIB of the type measures resource limited case, comprises 1 bit instruction Serving cell and whether adopts the restriction of measurement resource; Comprise a PCI list, instruction needs to adopt the PCI of the neighbor cell measuring resource restriction;
Mode 3, the subframe comprising the variable instruction Serving cell of 20 ~ 70 bits in the SIB of the type measures resource limited case, whether there is instruction Serving cell whether adopt the restriction of measurement resource according to this variable; The subframe comprising the variable instruction neighbor cell of 20 ~ 70 bits measures resource limited case, and comprises a PCI list, and instruction needs to adopt the PCI of the neighbor cell measuring resource restriction.
In addition, the mode that the present invention can also adopt broadcast signaling to be combined with dedicated signaling informs that the subframe of the tested community of UE is measured resource limited case and tested community and whether is subject to resource when measuring and limits, and mainly contains following several mode:
Whether mode 1, measures resource limited case by the subframe of broadcast signaling notice UE community, be subject to measuring resource restriction by dedicated signaling notification service community and neighbor cell;
Whether mode 2, measures resource limited case by the subframe of broadcast signaling notice UE community and whether Serving cell is subject to measuring resource restriction, be subject to measuring resource restriction by dedicated signaling notice neighbor cell;
Whether mode 3, measures resource limited case by the subframe of dedicated signaling notice UE community, be subject to measuring resource restriction by broadcast signaling notification service community and neighbor cell.
The heterogeneous network cell measuring method of the present embodiment, by when carrying out RRM/RLM to community and measuring, the subframe of the notice tested community of UE, base station measures resource limited case and whether tested community adopts this measurement to limit, make UE accurately can carry out RRM/RLM measurement to community, and indicate tested community whether to adopt resource to limit the minimum data passing through 1 bit just can realize, greatly reduce the signaling consumption between base station and UE.
In addition, the mode whether the subframe measurement resource limited case of the notice tested community of UE, base station and tested community adopt this measurement resource to limit can have multiple, compared with prior art, above-mentioned numerous embodiments, UE all can be made accurately to carry out RRM/RLM measurement to community, and reduce the signaling consumption between base station and UE.
device embodiment one
As shown in Figure 4, cell measurement device embodiment of the present invention comprises:
Measurement module 42, the subframe for the tested community according to acquisition measures restricted information and cell measurement restricted information is measured described tested community.
In addition, the present embodiment also comprises: receiver module 44, measures restricted information and described cell measurement restricted information for the subframe receiving the described tested community that base station is sent by RRC signaling or broadcast signaling.
The present embodiment also comprises: memory module 46, measures limitation arrangement for storing the polytype subframe pre-set;
Described receiver module 44, measures restricted information for the subframe receiving the tested community that base station sends, for subframe measures the numbering of limitation arrangement in the set of all subframe measurement limitation arrangement;
Search module 48, measure limitation arrangement for the subframe of searching described numbering corresponding from described memory module 46;
Measurement module 42, measures described tested community for measuring limitation arrangement according to described subframe.
The cell measurement device of the present embodiment can be arranged in UE.
The present embodiment, by measuring resource limited case according to the subframe of tested community and whether tested community adopts this measurement resource to limit, makes it possible to accurately carry out RRM/RLM measurement to community, and reduces the signaling consumption between base station and UE.
device embodiment two
As shown in Figure 5, measurement indicating device embodiment of the present invention comprises:
Subframe measures restricted information generation module 52, measures restricted information for the subframe generating tested community according to the type of tested community and the ABS configuration information of interference source community;
Cell measurement restricted information generation module 54, for generating the cell measurement restricted information of tested community according to the type of tested community.
Wherein, subframe measures restricted information generation module 52, for when tested community is interference source community, generate indicating terminal to measure in all subframes, or measure on the non-ABS of interference source community, or the subframe carrying out measuring on the common factor of the non-ABS of all interference source communities measures restricted information; When described tested community is interfered cell, generates indicating terminal and measure on the ABS of interference source community, or the subframe carrying out measuring on the common factor of the ABS of all interference source communities measures restricted information;
Cell measurement restricted information generation module 54, indicates corresponding interference source community or interfered cell to carry out the cell measurement restricted information measured according to subframe measurement restricted information for generating.
More preferably, described subframe measures restricted information generation module, for when the terminal of any type measures Serving cell, generates the subframe being used to indicate the restriction of terminal employing measurement resource and measures restricted information;
Or when the terminal of any type is measured with frequency neighbours pico community, generate and be used to indicate the subframe measurement restricted information that resource restriction is measured in terminal employing;
Or when the terminal of any type measures alien frequencies neighbours' macrocell, generate the subframe being used to indicate the restriction of terminal employing measurement resource and measure restricted information.
In addition, the present embodiment also comprises: signaling generation module 56, comprises for generating proprietary signaling or the broadcast signaling that subframe measures restricted information and cell measurement restricted information; Or generate the proprietary signaling comprising described subframe measurement restricted information and the broadcast signaling comprising cell measurement restricted information; Or generate the proprietary signaling comprising described cell measurement restricted information and the broadcast signaling comprising subframe measurement restricted information.
The measurement indicating device of the present embodiment can be arranged in base station.
The measurement indicating device of the present embodiment, generate the subframe being used for community RRM/RLM measurement and measure restricted information and cell measurement restricted information, by these two information, UE (cell measurement device) can be made accurately can to carry out RRM/RLM measurement to community, and reduce the signaling consumption between base station (measurement indicating device) and UE (cell measurement device).
system embodiment
As shown in Figure 6, heterogeneous network cell measurement system embodiment of the present invention comprises:
Measure indicating device 62, the subframe for generating tested community measures restricted information and cell measurement restricted information is sent to cell measurement device;
Cell measurement device 64, for measuring described tested community according to described subframe measurement restricted information and cell measurement restricted information.
The particular content measuring indicating device 62 information generated and the mode being sent to cell measurement device 64 refer to said method embodiment, do not repeat them here.
The system of the present embodiment, by when carrying out RRM/RLM to community and measuring, base station (measurement indicating device) notifies that the subframe of UE (cell measurement device) tested community measures resource limited case and whether tested community adopts ABS to measure restriction, make UE (cell measurement device) accurately can carry out RRM/RLM measurement to community, and greatly reduce the signaling consumption between base station (measurement indicating device) and UE (cell measurement device).
The present invention also provides a kind of and measures restricted information generation method, and it comprises:
The subframe that network side (measuring indicating device/base station) generates described tested community according to the type of tested community and the ABS configuration information of interference source community measures restricted information and cell measurement restricted information, and sends to terminal (cell measurement device/UE).
The concrete generating mode that subframe measures restricted information and cell measurement restricted information describes in detail in said method embodiment, does not repeat them here.
It is noted that above embodiment is only in order to illustrate the present invention and unrestricted, the present invention is also not limited in above-mentioned citing, and all do not depart from technical scheme and the improvement thereof of the spirit and scope of the present invention, and it all should be encompassed in right of the present invention.
Claims (20)
1. a heterogeneous network cell measuring method, is characterized in that, comprising:
Terminal measures restricted information according to the subframe of the tested community obtained and cell measurement restricted information is measured described tested community;
The subframe of described tested community measures restricted information and cell measurement restricted information is that network side generates according to the near-space subframe ABS configuration information of the type of tested community and interference source community;
When described tested community is interference source community, described subframe measurement restricted information is used to indicate terminal and measures in all subframes, or measures on the non-ABS of interference source community, or measures on the common factor of the non-ABS of all interference source communities; Described cell measurement restricted information is used to indicate corresponding interference source community and measures according to described subframe measurement restricted information;
Or when described tested community is interfered cell, described subframe measurement restricted information is used to indicate terminal and measures on the ABS of interference source community, or measures on the common factor of the ABS of all interference source communities; Described cell measurement restricted information is used to indicate corresponding interfered cell and measures according to described subframe measurement restricted information.
2. heterogeneous network cell measuring method according to claim 1, is characterized in that,
Described subframe is measured in restricted information, and whether the data instruction of each bit carries out the restriction of measurement resource to corresponding subframe, measures restricted information in corresponding subframe, carry out the restriction of measurement resource when measuring according to described subframe;
Or described subframe measures the numbering of subframe measurement limitation arrangement in the set of all subframe measurement limitation arrangement that restricted information is tested community, find corresponding subframe according to described numbering and measure limitation arrangement, measure limitation arrangement according to described subframe and measure.
3. heterogeneous network cell measuring method according to claim 1, is characterized in that,
Described cell measurement restricted information is whether the tested community of instruction measures according to described subframe the data that restricted information adopts 1 bit measuring resource restriction;
Or described cell measurement restricted information is need to measure according to described subframe the cell ID that restricted information carries out the tested community measuring resource restriction;
Or described cell measurement restricted information is list, comprises needs in list and measure according to described subframe the cell ID that restricted information carries out the tested community measuring resource restriction;
Determine whether tested community is measured restricted information according to described subframe and carried out the restriction of measurement resource when measuring according to described cell measurement restricted information.
4. heterogeneous network cell measuring method according to claim 1, is characterized in that,
Described cell measurement restricted information comprises: need to measure according to described subframe the frequency information that restricted information adopts the tested community measuring resource restriction;
Or described cell measurement restricted information comprises: need to measure restricted information according to described subframe and adopt the frequency information of the tested community measuring resource restriction and indicate the tested community on described frequency information whether to adopt the data measuring 1 bit of resource restriction;
Or described cell measurement restricted information comprises: need to measure according to described subframe frequency information and the cell ID that restricted information carries out the tested community measuring resource restriction;
Or described cell measurement restricted information comprises: need to measure according to described subframe frequency information and the list that restricted information carries out the tested community measuring resource restriction, comprise the cell ID of the tested community on described frequency information in described list;
Or described cell measurement restricted information is list, comprises needs in list and measure according to described subframe frequency information and the cell ID that restricted information carries out the tested community measuring resource restriction;
Determine whether tested community is measured restricted information according to described subframe and carried out the restriction of measurement resource when measuring according to described cell measurement restricted information.
5. heterogeneous network cell measuring method according to claim 1, is characterized in that, also comprises:
Terminal receiving package measures dedicated signaling or the broadcast signaling of restricted information and cell measurement restricted information containing the subframe of described tested community.
6. heterogeneous network cell measuring method according to claim 1, is characterized in that,
When described tested community is interference source community, when described subframe measurement restricted information is used to indicate terminal measurement neighbours interference source community, only measure at the common factor of the non-ABS of all neighbours' interference source communities;
Or when described tested community is interfered cell, the terminal that described subframe measurement restricted information is used to indicate interfered cell is measured on the common factor of the ABS of all interference source communities; The common factor of the subframe measurement resource limitation arrangement of terminal all disturbed cell-of-origins in its coverage of interference source community is measured;
Or described subframe is when measuring the community that restricted information is used to indicate as interference source and interfered cell while that terminal measuring, its common factor as the measurement resource restriction of interference source and interfered cell carries out.
7. heterogeneous network cell measuring method according to claim 1, is characterized in that,
Terminal is measured restricted information and cell measurement restricted information according to the subframe of the Serving cell obtained and/or neighbor cell and is measured described Serving cell and/or neighbor cell.
8. a cell measurement device, is characterized in that, comprising:
Measurement module, the subframe for the tested community according to acquisition measures restricted information and cell measurement restricted information is measured described tested community; The subframe of described tested community measures restricted information and cell measurement restricted information is that network side generates according to the near-space subframe ABS configuration information of the type of tested community and interference source community; When described tested community is interference source community, described subframe measurement restricted information is used to indicate terminal and measures in all subframes, or measures on the non-ABS of interference source community, or measures on the common factor of the non-ABS of all interference source communities; Described cell measurement restricted information is used to indicate corresponding interference source community and measures according to described subframe measurement restricted information;
Or when described tested community is interfered cell, described subframe measurement restricted information is used to indicate terminal and measures on the ABS of interference source community, or measures on the common factor of the ABS of all interference source communities; Described cell measurement restricted information is used to indicate corresponding interfered cell and measures according to described subframe measurement restricted information.
9. cell measurement device according to claim 8, is characterized in that, also comprise:
Receiver module, measures restricted information and cell measurement restricted information for the subframe receiving the described tested community that base station is sent by dedicated signaling or broadcast signaling.
10. cell measurement device according to claim 9, is characterized in that, also comprise: memory module and search module, wherein:
Described memory module, measures limitation arrangement for storing the polytype subframe pre-set;
Described receiver module, sends to comprise and measures for subframe limitation arrangement to measure the tested community of numbering in limitation arrangement set subframe in all subframes for receiving base station and measure restricted information;
Describedly search module, measure limitation arrangement for the subframe of searching described numbering corresponding from described memory module;
Described measurement module, measures described tested community for measuring limitation arrangement according to the described subframe found.
11. 1 kinds of measurement indicating devices, is characterized in that, comprising:
Subframe measures restricted information generation module, measures restricted information for the subframe generating tested community according to the type of tested community and the ABS configuration information of interference source community; When described tested community is interference source community, generates indicating terminal and measure in all subframes, or measure on the non-ABS of interference source community, or the subframe carrying out measuring on the common factor of the non-ABS of all interference source communities measures restricted information; When described tested community is interfered cell, generates indicating terminal and measure on the ABS of interference source community, or the subframe carrying out measuring on the common factor of the ABS of all interference source communities measures restricted information;
Cell measurement restricted information generation module, indicates corresponding interference source community or interfered cell to carry out the cell measurement restricted information measured according to described subframe measurement restricted information for generating according to the type of tested community.
12. measurement indicating devices according to claim 11, is characterized in that,
Described subframe measures restricted information generation module, for when the terminal of any type measures Serving cell, generates the subframe being used to indicate the restriction of terminal employing measurement resource and measures restricted information;
Or when the terminal of any type is measured with frequency neighbours pico community, generate and be used to indicate the subframe measurement restricted information that resource restriction is measured in terminal employing;
Or when the terminal of any type measures alien frequencies neighbours' macrocell, generate the subframe being used to indicate the restriction of terminal employing measurement resource and measure restricted information.
13. measurement indicating devices according to claim 11, is characterized in that, also comprise: signaling generation module, comprise for generating dedicated signaling or the broadcast signaling that described subframe measures restricted information and cell measurement restricted information;
Or generate the dedicated signaling comprising described subframe measurement restricted information and the broadcast signaling comprising cell measurement restricted information;
Or generate the dedicated signaling comprising described cell measurement restricted information and the broadcast signaling comprising subframe measurement restricted information.
14. 1 kinds of heterogeneous network cell measurement systems, is characterized in that, comprising:
Measure indicating device, the subframe for generating tested community measures restricted information and cell measurement restricted information is sent to cell measurement device;
Cell measurement device, for measuring described tested community according to described subframe measurement restricted information and cell measurement restricted information; The subframe of described tested community measures restricted information and cell measurement restricted information is that network side generates according to the near-space subframe ABS configuration information of the type of tested community and interference source community; When described tested community is interference source community, described subframe measurement restricted information is used to indicate terminal and measures in all subframes, or measures on the non-ABS of interference source community, or measures on the common factor of the non-ABS of all interference source communities; Described cell measurement restricted information is used to indicate corresponding interference source community and measures according to described subframe measurement restricted information; Or when described tested community is interfered cell, described subframe measurement restricted information is used to indicate terminal and measures on the ABS of interference source community, or measures on the common factor of the ABS of all interference source communities; Described cell measurement restricted information is used to indicate corresponding interfered cell and measures according to described subframe measurement restricted information.
15. 1 kinds of heterogeneous network cell measuring methods, is characterized in that, comprising:
Measure restricted information according to the subframe of the Serving cell obtained to measure described Serving cell, when the subframe obtaining described Serving cell measures restricted information, measure restricted information according to described subframe and measure in corresponding subframe; Wherein, described Serving cell is tested community;
It is that network side generates according to the near-space subframe ABS configuration information of the type of tested community and interference source community that the subframe of described tested community measures restricted information; When described tested community is interference source community, described subframe measurement restricted information is used to indicate terminal and measures in all subframes, or measures on the non-ABS of interference source community, or measures on the common factor of the non-ABS of all interference source communities;
Or when described tested community is interfered cell, described subframe measurement restricted information is used to indicate terminal and measures on the ABS of interference source community, or measures on the common factor of the ABS of all interference source communities.
16. heterogeneous network cell measuring methods according to claim 15, is characterized in that, also comprise: when the subframe not receiving described Serving cell measures restricted information, all subframes are measured.
17. heterogeneous network cell measuring methods according to claim 15 or 16, is characterized in that, also comprise:
Measure restricted information and cell measurement restricted information according to the subframe of the neighbor cell obtained to measure described neighbor cell.
Measure restricted information generation method, it is characterized in that, comprising for 18. 1 kinds:
The subframe that network side generates described tested community according to the ABS configuration information of the type of tested community and interference source community measures restricted information and cell measurement restricted information, and sends to terminal;
When described tested community is interference source community, network side generation is used to indicate terminal and measures in all subframes, or measure on the non-ABS of interference source community, or the subframe of carrying out the tested community measured on the common factor of the non-ABS of all interference source communities measures restricted information;
Or when described tested community is interfered cell, network side generation is used to indicate terminal and measures on the ABS of interference source community, or the subframe of carrying out the tested community measured on the common factor of the ABS of all interference source communities measures restricted information;
Network side generates and is used to indicate corresponding interference source community or interfered cell and measures according to described subframe the cell measurement restricted information that restricted information carries out measuring.
19. measurement restricted information generation methods according to claim 18, is characterized in that,
When described tested community is interference source community, network side generates the subframe measurement restricted information being used to indicate and only carrying out the tested community measured when terminal measures neighbours interference source community at the common factor of the non-ABS of all neighbours' interference source communities;
Or when described tested community is interfered cell, network side generates the terminal being used to indicate interfered cell and measures on the common factor of the ABS of all interference source communities, or the subframe of the common factor of the subframe measurement resource limitation arrangement of the terminal of interference source community all disturbed cell-of-origins in its coverage carrying out the tested community measured measures restricted information;
Or network side is when generating the community be used to indicate as interference source and interfered cell while that terminal measuring, the subframe that its common factor as the measurement resource restriction of interference source and interfered cell carries out the tested community measured measures restricted information.
20. measurement restricted information generation methods according to claim 18, is characterized in that,
When the terminal of any type measures Serving cell, network side generates the subframe being used to indicate the restriction of terminal employing measurement resource and measures restricted information;
Or the terminal of any type is when measuring with frequently neighbours pico community, network side generates and is used to indicate terminal and adopts the subframe measuring resource restriction to measure restricted information;
Or any type terminal measure alien frequencies neighbours' macrocell time, network side generate be used to indicate terminal adopt measure resource restriction subframe measure restricted information.
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| US9345023B2 (en) * | 2013-04-24 | 2016-05-17 | Alcatel Lucent | Method and apparatus for determination of almost blank subframe pattern by network listening |
| EP3337224B1 (en) * | 2015-09-01 | 2022-02-23 | Huawei Technologies Co., Ltd. | Measurement method and device |
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