CN101969694A - Method and device for configuring measurement reference signal time frequency resources - Google Patents
Method and device for configuring measurement reference signal time frequency resources Download PDFInfo
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Abstract
The invention discloses method and device for configuring measurement reference signal time frequency resources, and relates to the field of mobile communication. The method provided by the embodiment of the invention comprises the following step of dynamically adjusting the time frequency resource of a cell according to a pre-established configuration policy of the measurement reference signal time frequency resources, wherein the configuration policy is associated with the quantity of the current idle measurement reference signal time frequency resources in the cell or the quantity of the current access user terminals in the cell. The method and the device of the invention are applicable to various wireless access networks and can realize that adapted measurement reference signal time frequency resources are configured for the cell according to the using condition of the quantity of the current idle measurement reference signal time frequency resources in the cell.
Description
Technical field
The present invention relates to moving communicating field, relate in particular to the method and apparatus of a kind of measuring reference signals temporal frequency resource distribution.
Background technology
In 3GPP Long Term Evolution (LTE) system, for satisfying desired indicator demand at aspects such as speed, time delays, detection, measurement new technologies such as (Sounding) have been introduced, realize the measurement of channel quality between user terminal UE and the enhanced base station eNodeB by measuring reference signals (SoundingRS), for the running time-frequency resource dynamic dispatching of LTE system, power control etc. provide foundation.UE sends Sounding RS signal to the eNodeB cycle, and the transmission frequency of constantly adjusting reference signal is to cover whole ascending physical signal shared channel PUSCH frequency band; ENodeB receives the Sounding RS signal line correlation of going forward side by side and handles, and measures the channel quality (SINR, Signal to Interference and Noise Ratio) of this UE each subcarrier link in the PUSCH frequency band.
SoundingRS signal and ascending physical signal shared channel (PUSCH, Physical Uplink SharedCHannel) uses identical frequency band, disturb for avoiding the identical resource of both frequencies service time to produce conflict, on time-domain, mark off periodic time resource for SoundingRS, as the measuring reference signals subframe, only transmit measuring reference signals, can not be used for the PUSCH data and transmit.
ENodeB need give the UE that is linked into this sub-district with the resource allocation of cell measurement reference signal temporal frequency.Produce conflict for avoiding different UEs on identical temporal frequency resource, to send measuring reference signals, eNodeB distributes unitedly the resource that each UE uses by resource allocation algorithm, and with resource allocation information by Radio Resource control (RRC, Radio Resource Control) message informing UE.
In order to make eNodeB in this cell allocation and the suitable measuring reference signals temporal frequency resource of access UE quantity, the scheme of existing measuring reference signals temporal frequency resource distribution is: pre-estimate the number of peaks that UE is inserted in this sub-district, the maximum running time-frequency resource that all UE insert needs is satisfied in estimation again, selects only measuring reference signals sub-frame configuration index according to the quantity of running time-frequency resource.
State in realization in the process of measuring reference signals temporal frequency resource distribution, the inventor finds that there are the following problems at least in the prior art: the quantity that UE is inserted in the sub-district is dynamic change, chooses fixing measuring reference signals sub-frame configuration index and can not accomplish just to satisfy the resource allocation demand.When the UE negligible amounts was inserted in the sub-district, the running time-frequency resource of measuring reference signals sub-frame configuration index correspondence had the more free time, can not be used for data and transmit, and waste of radio resources is serious.UE quantity is inserted more for a long time in the sub-district, if the running time-frequency resource of measuring reference signals sub-frame configuration index correspondence can not satisfy distribution requirements, there is part UE can not finish measuring reference signals and measures, cause data transfer performance to descend, even step-out and the radio communication service that can't use eNodeB to provide.
Summary of the invention
Embodiments of the invention provide the method and apparatus of a kind of measuring reference signals temporal frequency resource distribution, can be the suitable measuring reference signals temporal frequency resource of cell allocation according to the operating position of this sub-district current measuring reference signals temporal frequency resource quantity.
For achieving the above object, embodiments of the invention adopt following technical scheme:
The method of a kind of measuring reference signals temporal frequency resource distribution comprises:
Dynamically adjust sub-district temporal frequency resource according to the measuring reference signals temporal frequency resource distribution strategy of setting up in advance; The current idle measuring reference signals temporal frequency resource quantity in described collocation strategy and sub-district, or the quantity of the current access user terminal in sub-district is relevant.
The device of a kind of measuring reference signals temporal frequency resource distribution comprises:
Set up the unit: be used to set up measuring reference signals temporal frequency resource distribution strategy, the current idle measuring reference signals temporal frequency resource quantity in described collocation strategy and sub-district, or the quantity of the current access user terminal in sub-district is relevant;
Adjustment unit: be used for dynamically adjusting sub-district temporal frequency resource according to described measuring reference signals temporal frequency resource distribution strategy.
The method and apparatus of the measuring reference signals temporal frequency resource distribution that the embodiment of the invention provides, at any time detect the current idle measuring reference signals temporal frequency resource quantity in this sub-district, the perhaps quantity of this current access user terminal in sub-district, can be according to the current idle measuring reference signals temporal frequency resource quantity in this sub-district, perhaps the current access user terminal quantity in this sub-district is distributed measuring reference signals temporal frequency resource, guaranteeing that UE normally finishes under the prerequisite of SoundingRS measurement, has saved local resource.
Description of drawings
Fig. 1 is the flow chart of an embodiment of the method for measuring reference signals temporal frequency of the present invention resource distribution.
Fig. 2 is the flow chart of another embodiment of the method for measuring reference signals temporal frequency of the present invention resource distribution.
Fig. 3 is the flow chart of another embodiment of the method for measuring reference signals temporal frequency of the present invention resource distribution.
Fig. 4 is the structural representation of an embodiment of the device of measuring reference signals temporal frequency of the present invention resource distribution.
Fig. 5 is the structural representation of another embodiment of the device of measuring reference signals temporal frequency of the present invention resource distribution.
Fig. 6 is the structural representation of another embodiment of the device of measuring reference signals temporal frequency of the present invention resource distribution.
Embodiment
In the embodiment of the invention, SoundingRS temporal frequency resource is used identical frequency band with the ascending physical signal shared channel, disturb for avoiding the identical resource of both frequencies service time to produce conflict, on time-domain, mark off periodic time resource for SoundingRS, as the measuring reference signals subframe, only transmit SoundingRS, can not be used for the PUSCH data and transmit.According to the cycle of measuring reference signals subframe and the time domain deviation post of measuring reference signals subframe in the phase weekly, agreement has been stipulated multiple different sub-frame configuration index, shown in following two forms (drawing 36.211 agreements) from 3GPP:
Table 1
Table 2
The time-domain resource that each cell measurement reference signal sub-frame configuration index is corresponding certain, such as Configuration in the table 18, represent that certain sub-district is used for per 5 subframe (5ms) cycles appearance of time-domain resource of measuring reference signals, the number of times of phase appearance is 2 times weekly, is 2ms and two positions of 3ms in time migration respectively.From the resource that comprises, the time-domain resource of Configuration 0 correspondence is (every 1ms occurs 1 time) at most, the time-domain resource of Configuration 9/10/11/12 correspondence minimum (every 10ms occurs 1 time).
ENodeB need give the UE that is linked into this sub-district with the resource allocation of cell measurement reference signal temporal frequency.Produce conflict for avoiding different UEs to send measuring reference signals on identical temporal frequency resource, eNodeB distributes unitedly the resource that each UE uses, and delimits the temporal frequency resource that each UE monopolizes, and resource allocation information is passed through RRC message informing UE.
The design philosophy of the embodiment of the invention is: constantly detect the quantity of this current access user terminal in sub-district, dynamically adjust cell measurement reference signal temporal frequency resource allocation result according to the quantity of this current access user terminal in sub-district.Such as, when the UE negligible amounts that inserts, less measuring reference signals temporal frequency resource just can satisfy the demands, and the measuring reference signals subframe index can be configured to cycle 10ms and 1 time sub-frame configuration only occur, as Configuration in the table 1 9/10/11/12; When the UE quantity that inserts was a lot, more measuring reference signals temporal frequency resource just can satisfy the demands, and subframe index need be configured to cycle 1ms sub-frame configuration, as Configuration in the table 10.
Be described in detail below in conjunction with the method and apparatus of accompanying drawing the resource distribution of embodiment of the invention measuring reference signals temporal frequency.
An embodiment of the method for measuring reference signals temporal frequency of the present invention resource distribution comprises as shown in Figure 1:
The measuring reference signals temporal frequency resource distribution strategy that S101, basis are set up is in advance dynamically adjusted sub-district temporal frequency resource; The current idle measuring reference signals temporal frequency resource quantity in described collocation strategy and sub-district, or the quantity of the current access user terminal in sub-district is relevant.
Present embodiment is by regularly detecting the current idle measuring reference signals temporal frequency resource quantity in this sub-district, the perhaps quantity of the current access user terminal in sub-district, can distribute measuring reference signals temporal frequency resource according to the current access user terminal quantity in this sub-district, guaranteeing that UE normally finishes under the prerequisite of Sounding measurement, has saved local resource.Realized that the operating position according to this sub-district current measuring reference signals temporal frequency resource quantity is the suitable measuring reference signals temporal frequency resource of cell allocation.
Another embodiment of the method for measuring reference signals temporal frequency of the present invention resource distribution comprises as shown in Figure 2:
S201, timing detect the quantity of this current access user terminal in sub-district.
S202, the access user terminal quantity that this sub-district is possible are divided between plural user area, set corresponding measuring reference signals sub-frame configuration index between each user area.
In the present embodiment, can be set according to actual conditions by the user according to the method that the possible access user terminal quantity in this sub-district is divided between the user area, present embodiment provides three kinds of setting meanss wherein:
1, directly the access user terminal quantity that this sub-district is possible is divided between more than one user area;
2, be divided between more than one user area according to the ratio of the possible access user terminal quantity in this sub-district according to the maximum access user terminal quantity in this sub-district;
3, be divided between more than one user area according to the multiple of the possible access user terminal quantity in this sub-district according to the minimum access user terminal quantity in this sub-district.
Respectively shown in table 3, table 4 and table 5:
| The sub-district is inserted between UE quantity N location | Corresponding district measuring reference signals sub-frame configuration index |
| 0≤N＜50 | 10 |
| 50≤N＜100 | 4 |
| 100≤N＜200 | 7 |
| 200≤N＜400 | 13 |
| 400≤N≤800 | 0 |
Table 3
Table 4
Table 5
S203, the pairing interval of quantity of searching this current access user terminal in sub-district are this cell allocation cell-level measuring reference signals temporal frequency resource according to the measuring reference signals sub-frame configuration index of this interval correspondence.
During the network planning, the quantity that can be in advance UE be inserted in this sub-district provides an estimated value, again according to this estimated value or the maximum ratio that inserts quantity M of estimated value and sub-district, perhaps estimated value and sub-district minimum inserts the interval at the multiple place of amount R, choose corresponding measuring reference signals sub-frame configuration index, when practical application, estimated value is revised then.
S204, described allocation result is sent to user terminal by resource allocation information.
If S205 has new user terminal to insert this sub-district, for this user terminal distributes measuring reference signals temporal frequency resource; If user terminal leaves sub-district, step-out or shutdown, regain the measuring reference signals temporal frequency resource that this user terminal uses.
During this period, the measuring reference signals sub-frame configuration index of this sub-district does not change, and still uses the measuring reference signals sub-frame configuration index of choosing among the step S203, and the user terminal of this each access of sub-district takies a part of measuring reference signals sub-frame resources.If the lazy weight of existing user terminal is to take all measuring reference signals sub-frame resources, so a part of measuring reference signals sub-frame resources can be idle.If there is new user terminal to insert this sub-district, chooses idle measuring reference signals sub-frame resources and distribute to this user terminal; Leave sub-district, step-out or shutdown if insert the user terminal of this sub-district, the measuring reference signals temporal frequency resource of regaining this user terminal use is in order to sub-distribution again.
S206, when the quantity of this current access user terminal in sub-district changes and exceeds between original user area, searching between the pairing user area of quantity of this current access user terminal in sub-district, is this cell allocation cell-level measuring reference signals temporal frequency resource according to measuring reference signals sub-frame configuration index corresponding between this user area.
If because new user terminal inserts or accessed user's terminal is left, cause idle measuring reference signals sub-frame resources very little even disappear, perhaps Kong Xian measuring reference signals sub-frame resources is too many, when having exceeded between original user area, can consider to adjust current measuring reference signals sub-frame configuration index.
For example, the current access user terminal in this sub-district is 60, measuring reference signals sub-frame configuration index is a measuring reference signals sub-frame configuration index 4 in the table 3, because user terminal constantly leaves, access user terminal quantity has dropped to 40, and eNodeB is lowered to measuring reference signals sub-frame configuration index 10 with measuring reference signals sub-frame configuration index measuring reference signals sub-frame configuration index 4 from table 3 so.Perhaps, if constantly there is new user terminal to insert, cause the current access user terminal quantity in this sub-district to be increased to 120 by 60, eNodeB is transferred to measuring reference signals sub-frame configuration index 7 with measuring reference signals sub-frame configuration index measuring reference signals sub-frame configuration index 4 from table 3 so.
Present embodiment is applicable to the bigger situation of sub-district access user terminal number change, can make eNodeB in this cell allocation and the suitable SoundingRS temporal frequency resource of access UE quantity with the fastest speed.
Another embodiment of the method for measuring reference signals temporal frequency of the present invention resource distribution comprises as shown in Figure 3:
S301, set up measuring reference signals temporal frequency resource allocation migration series, and set the contraction that triggers migration and expand thresholding.
By the eNodeB Operation ﹠ Maintenance System is sub-district pre-configured measuring reference signals sub-frame configuration migration series.This migration series comprises at least 2 measuring reference signals sub-frame configuration index, described at least 2 sub-frame number differences that measuring reference signals sub-frame configuration index is comprised.Described at least 2 measuring reference signals sub-frame configuration index are arranged from small to large or from big to small according to sub-frame number in migration series.Such as, as shown in table 1, the measuring reference signals sub-frame configuration migration series of certain setting comprises 3 measuring reference signals sub-frame configuration index, be respectively Configuration12,13,14, from table 1, can see, in per 10 milliseconds, Configuration12 has 1 subframe to use, and its time skew is the 3rd millisecond; In per 10 milliseconds, Configuration13 has 7 subframes to use, and its time skew is the 0th, 1,2,3,4,6,8 millisecond; In per 10 milliseconds, Configuration14 has 8 subframes to use, and its time skew is the 0th, 1,2,3,4,5,6,8 millisecond.So, corresponding migration series can be (Configuration12, Configuration13, Configuration14), promptly, the measuring reference signals temporal frequency resource that takies as this sub-district UE increases, and when the sub-frame number of Configuration12 is not enough to meet the demands, Configuration13 is moved in the measuring reference signals sub-frame configuration index of this current use in sub-district; The measuring reference signals temporal frequency resource that takies as this sub-district UE increases, and when the sub-frame number of Configuration13 is not enough to meet the demands, Configuration14 is moved in the measuring reference signals sub-frame configuration index of this current use in sub-district.If the measuring reference signals temporal frequency a resource shrinkage that this sub-district UE takies, then the measuring reference signals sub-frame configuration index of this current use in sub-district is according to migration in the other direction.
When setting up measuring reference signals temporal frequency resource allocation migration series, also to set the contraction that triggers migration and expand thresholding.The so-called thresholding that shrinks is meant that measuring reference signals sub-frame configuration index is from the thresholding of number of sub frames index how to the few index migration of number of sub frames, such as, shrink thresholding set can for: in the measuring reference signals sub-frame configuration index of current use, idle sub-frame number rises to 80% o'clock of this index subframe sum, triggers and shrinks.So-called expansion thresholding is meant the thresholding that measuring reference signals sub-frame configuration index moves to the many index of number of sub frames from the few index of number of sub frames, such as, shrink thresholding set can for: in the measuring reference signals sub-frame configuration index of current use, idle sub-frame number drops to 20% o'clock of this index subframe sum, triggers and expands.
Described contraction thresholding and expansion thresholding are set at fixed numbers, are perhaps set up on their own by the user.
S302, eNodeB are the initial measuring reference signals sub-frame configuration index of this cell allocation in described migration series.
Initial measurement reference signal sub-frame configuration index can be any one index value in the migration path policy sequence.For the strategy that guarantees to determine by path moves, initial measurement reference signal sub-frame configuration index must be the index value that occurs in the migration path policy sequence.
If S303 has new user terminal to insert this sub-district, eNodeB distributes measuring reference signals temporal frequency resource for this user terminal; If user terminal leaves sub-district, step-out or shutdown, regain the measuring reference signals temporal frequency resource that this user terminal uses.
ENodeB is that the new user terminal that inserts this sub-district distributes measuring reference signals temporal frequency resource according to the current sub-frame configuration index in this sub-district, an if above subframe in the current sub-frame configuration index, overlap with the subframe in the sub-frame configuration index adjacent with current sub-frame configuration index in the migration series, the described coincidence subframe of priority allocation is used in this sub-district.Like this, when disposing when the direction that reduces is moved, subframe can reduce inserting the influence of UE.
Such as, the measuring reference signals sub-frame configuration migration strategy that forms according to table 3 is (10,4,7,13,0), suppose that current measuring reference signals sub-frame configuration strategy is Configuration7, configuration mode according to table 1, be used to distribute to per 5 milliseconds of the 1st milliseconds of appearing at time migration of subframe that user terminal uses among the Configuration4, be used to distribute to per 5 milliseconds of the 0th and the 1st milliseconds of appearing at time migration of subframe that user terminal uses among the Configuration7, when so current measuring reference signals sub-frame configuration strategy is Configuration7, per 5 milliseconds of the 1st millisecond the subframes that appear at time migration of system's priority allocation are given UE, like this in the measuring reference signals sub-frame configuration when Configuration7 is moved to Configuration4, for UE, though the measuring reference signals sub-frame configuration index of this sub-district has changed, but distribute to the not change of subframe that UE uses, can reduce the influence of measuring reference signals sub-frame configuration change UE.
S304, eNodeB regularly detect the idle quantity of this sub-district current measuring reference signals temporal frequency resource.
S305, eNodeB are according to measuring reference signals temporal frequency resource allocation migration strategy, when changing and reach, the idle quantity of this sub-district current measuring reference signals temporal frequency resource (unallocated measuring reference signals sub-frame resources of giving the Any user terminal) expands or when shrinking thresholding, adjusting the measuring reference signals sub-frame configuration index of this sub-district according to this migration strategy, is that user terminal distributes measuring reference signals temporal frequency resource according to adjusted measuring reference signals sub-frame configuration index.
Measuring reference signals sub-frame configuration migration strategy comprises a plurality of measuring reference signals sub-frame configuration index, carry out the path migration for ease of take situation according to resource allocation, usually by measuring reference signals sub-frame configuration resource that index comprises what, arrange from small to large or from big to small, as shown in table 3, the quantity of sub-district access UE from small to large, corresponding measuring reference signals sub-frame configuration index can form a sequence { 10,4,7,13,0}.The sequence here is according to the structure of table 1, Configuration10 occurs 1 time for per 10 milliseconds, and Configuration4 occurs 1 time for per 5 milliseconds, and Configuration7 occurs 2 times for per 5 milliseconds, Configuration13 occurs 7 times for per 10 milliseconds, and Configuration0 occurs 1 time for per 1 millisecond.For different sub-districts, can dispose different measuring reference signals sub-frame configuration index sequence, to adapt to the demand of access UE quantity separately.
At certain specific sub-district, estimate to insert the measuring reference signals temporal frequency resource quantity that UE takies according to its application scenarios.Can choose minimum and maximum two measuring reference signals sub-frame configuration index A and B according to the measuring reference signals temporal frequency resource quantity that the access UE that estimates takies.A simple migration strategy sequence can be set be { A, B}, the measuring reference signals sub-frame configuration index of representing this sub-district is chosen A the most for a long time inserting the measuring reference signals temporal frequency resource quantity that UE takies, and hour chooses B inserting measuring reference signals temporal frequency resource quantity that UE takies.
Insert the situation of the measuring reference signals temporal frequency resource that UE takies according to cell initial, can choose measuring reference signals sub-frame configuration index C.Because the measuring reference signals temporal frequency resource quantity that cell initial access UE takies between maximum and minimum value, then can be provided with a migration strategy sequence and be { A, C, B} certainly.The initial configuration index is C, inserts the measuring reference signals temporal frequency resource quantity increase that UE takies, and causes the idle quantity of current measuring reference signals temporal frequency resource to reduce, and reduces to when expanding thresholding, and configuration index is adjusted into A; If insert the measuring reference signals temporal frequency resource quantity minimizing that UE takies, cause the idle quantity of current measuring reference signals temporal frequency resource to increase, be increased to when shrinking thresholding, configuration index can be adjusted into B.
After if configuration index is adjusted into B, inserts measuring reference signals temporal frequency resource quantity that UE takies and continue to reduce then that configuration index B remains unchanged; If the measuring reference signals temporal frequency number of resources quantitative change that access UE takies is big, then configuration index is pressed the path migration of B-＞C-＞A.After if configuration index is adjusted into A, inserts measuring reference signals temporal frequency resource quantity that UE takies and continue to increase then that configuration index A remains unchanged; If the measuring reference signals temporal frequency resource quantity that access UE takies diminishes, then configuration index is pressed the path migration of A-＞C-＞B.
Can choose a measuring reference signals sub-frame configuration index D again, the measuring reference signals sub-frame number of D correspondence then can form the migration strategy sequence and be { A, D, C, B} between A and C.If the measuring reference signals temporal frequency number of resources quantitative change that access UE takies is big, then configuration index is pressed the path migration of B-＞C-＞D-＞A; Diminish if insert UE quantity, then configuration index is pressed the path migration of A-＞D-＞C-＞B.
Similarly, can also continue to choose the configuration index E between D and the C, the configuration index F between C and the B forms comparatively complicated migration path policy sequence { A, D, E, C, F, a B}.If the measuring reference signals temporal frequency number of resources quantitative change that access UE takies is big, then configuration index is pressed the path migration of B-＞F-＞C-＞E-＞D-＞A; If the measuring reference signals temporal frequency resource quantity that access UE takies diminishes, then configuration index is pressed the path migration of A-＞D-＞E-＞C-＞F-＞B.
In the sub-district, the quantity of the measuring reference signals temporal frequency resource that access user terminal takies changes at any time, if the quantity of the measuring reference signals temporal frequency resource that access user terminal takies is adjusted measuring reference signals sub-frame configuration index once becoming, the a large amount of consume system resources of meeting, in order to overcome this problem, present embodiment is that the path migration of measuring reference signals sub-frame configuration index has been set the contraction thresholding and expanded thresholding, the quantity of the measuring reference signals temporal frequency resource that takies at access user terminal reduces, idling-resource (unallocated measuring reference signals sub-frame resources of giving the Any user terminal) under the current measuring reference signals sub-frame configuration index is increased, reach when shrinking thresholding, another number of sub frames measuring reference signals sub-frame configuration index still less adjusted to downwards in current measuring reference signals sub-frame configuration index according to the migration path strategy; The quantity of the measuring reference signals temporal frequency resource that takies at access user terminal increases, idling-resource (unallocated measuring reference signals sub-frame resources of giving the Any user terminal) under the current measuring reference signals sub-frame configuration index is reduced, reach when expanding thresholding, current measuring reference signals sub-frame configuration index is adjusted upward to the more measuring reference signals sub-frame configuration of another number of sub frames index according to the migration path strategy.
Introduce the application of expanding thresholding and shrinking thresholding below.
In the process that the quantity of the measuring reference signals temporal frequency resource that access user terminal takies increases, idling-resource under the current measuring reference signals sub-frame configuration index reduces, may trigger expansion, just current measuring reference signals sub-frame configuration index needs to calculate the quantity of the idling-resource CFreeResExpand under the expansion condition to the process of the more measuring reference signals sub-frame configuration of number of sub frames index migration in this process.During resource allocation, can distributorship agreement in the UE measuring reference signals resource of designated size minimum, promptly the cycle of time domain resource is 320ms, the frequency domain resource width is 4RB.Agreement is stipulated in addition, and UE measuring reference signals resource can also be carried out code division multiplexing by 8 different cyclic shifts.
So, idling-resource quantity CFreeResExpand carries out the equivalence statistics with the resource granularity of 4RB/1 cyclic shift of cycle 320ms/ frequency range, for the cycle is that the resource of T ms can equivalence be the resource of T/320 cycle 320ms, for frequency range is the resource of F RB, can equivalence be the resource of F/4 4RB.Such as, cycle 1ms frequency range 96RB cyclic shift is 8 a measuring reference signals resource, equivalent idling-resource quantity CFreeResExpand is (320/1) * (96/4) * 8=61440.
In the process that the quantity of the measuring reference signals temporal frequency resource that access user terminal takies reduces, idling-resource under the current measuring reference signals sub-frame configuration index reduces, may trigger contraction, just current measuring reference signals sub-frame configuration index needs to calculate the quantity of the idling-resource CFreeResShrink under the pinch condition to the process of number of sub frames measuring reference signals sub-frame configuration index migration still less in this process.If triggering this cell measurement reference signal resource shrinks, and the measuring reference signals resource that has UE to distribute and use is on the measuring reference signals resource that needs shrink, then need these measuring reference signals resources are discharged, and again for described UE is distributed on the measuring reference signals resource that still keeps after the contraction, more than the assigning process of promptly attaching most importance to.
Guarantee not influence the business function of UE, heavily the measuring reference signals temporal frequency resource of Fen Peiing should be not less than former measuring reference signals temporal frequency resource and guarantee that all UE that will heavily distribute can both be allocated successfully, and can be that granularity is calculated equivalent idling-resource quantity CFreeResShrink by the UE measuring reference signals temporal frequency resource of the maximum that can distribute.Such as, be 40ms by the cycle, frequency range is that the equivalent resources granularity of 1/2,1 cyclic shift of systematic survey reference signal bandwidth is added up.The Equivalent calculation method of CFreeResShrink and the Equivalent calculation method of CFreeResExpand are similar.
ENodeB compares the expansion thresholding TFreeResExpand and the contraction thresholding TFreeResShrink of the idle measuring reference signals resource quantity CFreeResExpand in the sub-district that calculates and CFreeResShrink and sub-district.
As CFreeResShrink during greater than TFreeResShrink, trigger and shrink, cell measurement reference signal sub-frame configuration index is moved on the measuring reference signals sub-frame configuration index that takies littler time-domain resource, reduces taking the PUSCH resource.If sub-district current measuring reference signals sub-frame configuration index has been a minimum measuring reference signals sub-frame configuration index in the migration strategy, no longer shrink.
As CFreeResExpand during less than TFreeResExpand, trigger and expand, cell measurement reference signal sub-frame configuration index is moved on the measuring reference signals sub-frame configuration index that takies bigger time-domain resource, satisfies the measuring reference signals resource requirement of more UE.
If current area sub-frame configuration index has been a maximum resource sub-frame configuration index in the migration strategy, still can't satisfy the resource requirement of UE, trigger and expand, can select two kinds of processing methods: the 1st kind is no longer to expand, and measuring reference signals sub-frame configuration index remains unchanged; The 2nd kind of selection is to adjust in 3GPP 36.211 agreements maximum resource sub-frame configuration index in the measuring reference signals sub-frame configuration table,, selects Configuration 0 for FDD that is, for TDD, selects Configuration 7.
Expand thresholding TFreeResExpand and shrink thresholding TFreeResShrink and can be set to fixed numeric values.For ease of flexible adjustment, can realize by the eNodeB Operation ﹠ Maintenance System two threshold values being provided with by the user.
The method embodiment of above measuring reference signals temporal frequency of the present invention resource distribution, regularly detect the idle quantity of this sub-district current measuring reference signals temporal frequency resource, can adjust the current measuring reference signals sub-frame configuration index in this sub-district according to the idle quantity of this sub-district current measuring reference signals temporal frequency resource, guaranteeing that UE normally finishes under the prerequisite of SoundingRS measurement, has saved local resource.The method embodiment and the design philosophy thereof of the resource distribution of above measuring reference signals temporal frequency of the present invention are applicable to various wireless access networks.
An embodiment of the device of measuring reference signals temporal frequency of the present invention resource distribution comprises as shown in Figure 4:
Set up unit 41: be used to set up measuring reference signals temporal frequency resource distribution strategy, the current idle measuring reference signals temporal frequency resource quantity in described collocation strategy and sub-district, or the quantity of the current access user terminal in sub-district is relevant.
Set up the unit and set up a collocation strategy at measuring reference signals temporal frequency resource, comprise two above measuring reference signals sub-frame configuration index in this collocation strategy, set up the unit and set up migration strategy between the measuring reference signals sub-frame configuration index according to the current idle measuring reference signals temporal frequency resource quantity in sub-district, or set up between the quantity dividing regions of unit with the current access user terminal in sub-district, respectively at different measuring reference signals sub-frame configuration index.
Adjustment unit 42: be used for dynamically adjusting sub-district temporal frequency resource according to described measuring reference signals temporal frequency resource distribution strategy.
Adjustment unit is adjusted the current measuring reference signals sub-frame configuration index in this sub-district according to setting up the collocation strategy that the unit is set up.
Present embodiment can make eNodeB in this cell allocation and the suitable SoundingRS temporal frequency resource of access UE quantity.
Another embodiment of the device of measuring reference signals temporal frequency of the present invention resource distribution as shown in Figure 5, in this embodiment, among the embodiment shown in Figure 4:
Set up unit 41 and specifically be used to set up measuring reference signals temporal frequency resource distribution strategy, described collocation strategy is relevant with the current idle measuring reference signals temporal frequency resource quantity in sub-district.
Set up unit 42 and set up a collocation strategy at measuring reference signals temporal frequency resource, comprise two above measuring reference signals sub-frame configuration index in this collocation strategy, set up the unit and set up migration strategy between the measuring reference signals sub-frame configuration index according to the current idle measuring reference signals temporal frequency resource quantity in sub-district.
Adjustment unit 42 specifically is used for dynamically adjusting sub-district temporal frequency resource according to described measuring reference signals temporal frequency resource distribution strategy.
Adjustment unit 42 is adjusted the current measuring reference signals sub-frame configuration index in this sub-district according to setting up the collocation strategy that the unit is set up.
Wherein, described adjustment unit 42 comprises:
First distributes subelement 521: being used in described migration series is the initial measuring reference signals sub-frame configuration index of this cell allocation, comprises plural measuring reference signals sub-frame configuration index in the described migration series.
First detection sub-unit 522: the idle quantity that is used to detect the measuring reference signals temporal frequency resource of this sub-district.
The first migration subelement 523: be used for when the quantity of idling-resource equals contraction or expands thresholding,, adjusting the measuring reference signals sub-frame configuration index that use this sub-district according to the migration series of configured in advance.
Priority allocation subelement 524:, be used for the described coincidence subframe of priority allocation and use in this sub-district if an above subframe in the current sub-frame configuration index overlaps with subframe in the sub-frame configuration index adjacent with current sub-frame configuration index in the migration series.
Another embodiment of the device of measuring reference signals temporal frequency of the present invention resource distribution as shown in Figure 6, in this embodiment, the unit 41 of setting up among the embodiment shown in Figure 4 specifically is used to set up measuring reference signals temporal frequency resource distribution strategy, and is relevant with the quantity of the current access user terminal in sub-district.
Set up unit 41 and set up a collocation strategy at measuring reference signals temporal frequency resource, comprise two above measuring reference signals sub-frame configuration index in this collocation strategy, set up between the quantity dividing regions of unit, respectively at different measuring reference signals sub-frame configuration index the current access user terminal in sub-district.
Adjustment unit 42 specifically is used for dynamically adjusting sub-district temporal frequency resource according to described measuring reference signals temporal frequency resource distribution strategy.
Adjustment unit is adjusted the current measuring reference signals sub-frame configuration index in this sub-district according to setting up the collocation strategy that the unit is set up.
Wherein, adjustment unit 42 comprises:
Second distributes subelement 621: be used to this cell allocation and the suitable measuring reference signals temporal frequency resource of current access user terminal quantity.
Second detection sub-unit 622: the quantity that is used to detect this current access user terminal in sub-district.
Further, second distributes subelement 621 to comprise:
Allocation strategy subdivision 6211: be used for the access user terminal quantity that this sub-district is possible and be divided into plural interval, each interval measuring reference signals sub-frame configuration index of setting correspondence;
Carry out subdivision 6212: being used to search the pairing interval of quantity of this current access user terminal in sub-district, is this cell allocation cell-level measuring reference signals temporal frequency resource according to the measuring reference signals sub-frame configuration index of this interval correspondence.
Above embodiment is by detecting the quantity of this current access user terminal in sub-district at any time, can distribute measuring reference signals temporal frequency resource according to the current idle measuring reference signals temporal frequency resource quantity of current access user terminal quantity in this sub-district or sub-district, guaranteeing that UE normally finishes under the prerequisite of SoundingRS measurement, has saved local resource.
One of ordinary skill in the art will appreciate that all or part of flow process that realizes in the foregoing description method, be to instruct relevant hardware to finish by computer program, described program can be stored in the computer read/write memory medium, this program can comprise the flow process as the embodiment of above-mentioned each side method when carrying out.Wherein, described storage medium can be magnetic disc, CD, read-only storage memory body (Read-Only Memory, ROM) or at random store memory body (Random Access Memory, RAM) etc.
The above; only be the specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, anyly is familiar with those skilled in the art in the technical scope that the present invention discloses; can expect easily changing or replacing, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection range of claim.
Claims (13)
1. the method for measuring reference signals temporal frequency resource distribution is characterized in that, comprising:
Dynamically adjust sub-district temporal frequency resource according to the measuring reference signals temporal frequency resource distribution strategy of setting up in advance; The current idle measuring reference signals temporal frequency resource quantity in described collocation strategy and sub-district, or the quantity of the current access user terminal in sub-district is relevant.
2. method according to claim 1, it is characterized in that, when the current idle measuring reference signals temporal frequency resource quantity in collocation strategy and sub-district was relevant, the measuring reference signals temporal frequency resource distribution strategy that described basis is set up was in advance dynamically adjusted sub-district temporal frequency resource and is comprised:
Detect the idle quantity of the measuring reference signals temporal frequency resource of this sub-district;
When the quantity of described idling-resource reaches contraction or expands thresholding,, adjust the measuring reference signals sub-frame configuration index that use this sub-district according to the migration series of configured in advance.
3. method according to claim 2, it is characterized in that, comprise plural measuring reference signals sub-frame configuration index in the migration series of described configured in advance, described method also comprises: be the initial measuring reference signals sub-frame configuration index of this cell allocation in described migration series.
4. according to claim 2 or 3 described methods, it is characterized in that, after adjusting the measuring reference signals sub-frame configuration index that uses this sub-district, also comprise:
If the subframe in the current sub-frame configuration index overlaps with subframe in the sub-frame configuration index adjacent with current sub-frame configuration index in the migration series, the described coincidence subframe of priority allocation is used in this sub-district.
5. according to claim 2 or 3 described methods, it is characterized in that described idling-resource carries out the equivalence statistics with the resource granularity of cycle 320ms, frequency range 4RB, 1 cyclic shift.
6. method according to claim 1, it is characterized in that, when the quantity of collocation strategy and the current access user terminal in sub-district was relevant, the measuring reference signals temporal frequency resource distribution strategy that described basis is set up was in advance dynamically adjusted sub-district temporal frequency resource and is comprised:
Detect the quantity of this current access user terminal in sub-district;
Be this cell allocation and the suitable measuring reference signals temporal frequency resource of current access user terminal quantity.
7. method according to claim 6 is characterized in that, described is that the suitable measuring reference signals temporal frequency resource of this cell allocation and current access user terminal quantity is specially:
The access user terminal quantity that this sub-district is possible is divided into plural interval, each interval measuring reference signals sub-frame configuration index of setting correspondence;
Searching the pairing interval of quantity of this current access user terminal in sub-district, is this cell allocation cell-level measuring reference signals temporal frequency resource according to the measuring reference signals sub-frame configuration index of this interval correspondence.
8. the device of measuring reference signals temporal frequency resource distribution is characterized in that, comprising:
Set up the unit: be used to set up measuring reference signals temporal frequency resource distribution strategy, the current idle measuring reference signals temporal frequency resource quantity in described collocation strategy and sub-district, or the quantity of the current access user terminal in sub-district is relevant;
Adjustment unit: be used for dynamically adjusting sub-district temporal frequency resource according to described measuring reference signals temporal frequency resource distribution strategy.
9. device according to claim 8 is characterized in that adjustment unit comprises:
First detection sub-unit: the idle quantity that is used to detect the measuring reference signals temporal frequency resource of this sub-district;
The first migration subelement: be used for when the quantity of idling-resource reaches contraction or expands thresholding,, adjusting the measuring reference signals sub-frame configuration index that use this sub-district according to the migration series of configured in advance.
10. device according to claim 9 is characterized in that adjustment unit also comprises:
First distributes subelement: being used in described migration series is the initial measuring reference signals sub-frame configuration index of this cell allocation, comprises plural measuring reference signals sub-frame configuration index in the described migration series.
11., it is characterized in that adjustment unit also comprises according to claim 9 or 10 described devices:
Priority allocation subelement:, be used for the described coincidence subframe of priority allocation and use in this sub-district if the subframe in the current sub-frame configuration index overlaps with subframe in the sub-frame configuration index adjacent with current sub-frame configuration index in the migration series.
12. device according to claim 8 is characterized in that, adjustment unit comprises:
Second detection sub-unit: the quantity that is used to detect this current access user terminal in sub-district;
Second distributes subelement: be used to this cell allocation and the suitable measuring reference signals temporal frequency resource of current access user terminal quantity.
13. device according to claim 12 is characterized in that, second distributes subelement to comprise:
Allocation strategy subdivision: be used for the access user terminal quantity that this sub-district is possible and be divided into plural interval, each interval measuring reference signals sub-frame configuration index of setting correspondence;
Carry out subdivision: being used to search the pairing interval of quantity of this current access user terminal in sub-district, is this cell allocation cell-level measuring reference signals temporal frequency resource according to the measuring reference signals sub-frame configuration index of this interval correspondence.
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