CN104125589A - Measuring method of deviation calibration information among multiple access points and device thereof - Google Patents
Measuring method of deviation calibration information among multiple access points and device thereof Download PDFInfo
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Abstract
The invention relates to a measuring method of deviation calibration information among multiple access points and a device thereof. The measuring method of deviation calibration information among multiple access points comprises the following steps: a base station side determines a deviation calibration strategy; according to the deviation calibration strategy, deviation calibration information measurement parameter configuration is carried out on a user side; and according to a deviation calibration information measuring result returned by the user side, the base station side carries out deviation calibration among multiple access points. The invention has the following beneficial effects: the problem of deviation existing among different access points when the different access points simultaneously send data to UE is solved, time-delay deviation calibration accuracy is raised, and system performance and spectrum effectiveness are improved.
Description
Technical field
The present invention relates to communication technical field, relate in particular to method of measurement and the device of deviation calibration information between a kind of multiple access point (Access Point, AP).
Background technology
In advanced Long Term Evolution (LTE-Advanced) system, in order further to improve the spectrum efficiency of systematic function and edge customer, cooperative multipoint transmission and reception (CoMP, Coordinated multi-point transmission/reception) technology has been proposed.The basic thought of CoMP technology is user terminal (UE, User Equipment) can utilize multiple access point (AP, Access Point) antenna cooperative transmission and reception information, the co-channel interference existing effectively to solve cell edge, thereby channel capacity and the reliability of raising wireless link.
Because the AP point that carries out CoMP cooperation is distributed in different geographical position, when multiple AP points are a UE transmission downlink data simultaneously, the data that different AP send arrive this UE asynchronism(-nization) used, caused the signal that arrives UE to have certain Channel propagation delay poor, there is phase rotating deviation in the signal that this delay inequality can cause information to arrive UE on frequency domain.Meanwhile, different AP points also have certain Timing Synchronization deviation to each other, and the time that makes these AP points send data to same UE can exist asynchronous accordingly.
The accumulative effect of the poor and/or Timing Synchronization deviation of Channel propagation delay between above-mentioned AP point, exists certain channel delay poor between the data that different AP points are sent to same UE each other, causes systematic function to reduce.
Summary of the invention
In order to solve the problems of the technologies described above, the invention provides method of measurement and the device of deviation calibration information between a kind of multiple access point, the deviation that different AP points are existed is calibrated, and improves the performance of system.
In order to achieve the above object, the technical solution used in the present invention is: the method for measurement of the deviation calibration information between a kind of multiple access points, comprising:
Base station side is determined deviation calibration strategy;
According to described deviation calibration strategy, user side is carried out to the configuration of deviation calibration information measurement parameter;
The measurement result of the deviation calibration information that base station side is returned according to user side, carries out the deviation calibration between multiple access points.
Further, described step " measurement result of the deviation calibration information that returns according to user side of base station side is carried out the deviation calibration between multiple access points " also comprises before:
Base station side meets the first deviation calibrates when pre-conditioned, sends the signaling of measuring the deviation calibration information between multiple access points trigger user side measured deviation calibration information to user side.
Further, described the first deviation is calibrated pre-conditioned comprising: base station side is carried out multicast communication and reception by multiple access points and user side, and the precoding of each access point independence;
Or base station side is carried out multicast communication and reception by multiple access points and user side, and pre-conditioned when satisfied the second deviation calibration of the downlink data parameter sending, wherein said deviation is calibrated pre-conditioned comprising:
The throughput that the Block Error Rate of downlink data is greater than the first preset value, downlink data is less than the second preset value.
Further, described step " measurement result of the deviation calibration information that returns according to user side of base station side is carried out the deviation calibration between multiple access points " comprises before:
Base station side sends the signaling of returning to deviation calibration information measurement result to user side, trigger user side deviation calibration information measurement result is reported.
Further, described signaling sends by radio resource control or physical layer descending control channel.
Further, described deviation calibration information comprises phase alignment information and/or delay inequality, and described delay inequality comprises the Timing Synchronization deviation between poor and/or multiple the access points of channel delay.
Further, described deviation calibration strategy is:
The first strategy, user side is measured described phase alignment information, the poor and described Timing Synchronization deviation of described channel delay; Or
The second strategy, user side is measured described phase alignment information, and base station side is measured the poor and described Timing Synchronization deviation of described channel delay; Or
The 3rd strategy, user side is measured the poor and described Timing Synchronization deviation of described channel delay, and base station side is measured described phase alignment information; Or
The 4th strategy, it is poor that user side is measured described channel delay, and base station side is measured described Timing Synchronization deviation and described phase alignment information; Or
The 5th strategy, user side is measured described Timing Synchronization deviation, and base station side is measured the poor and described phase alignment information of described channel delay.
Further, described deviation calibration strategy is described the second strategy, and described step " measurement result of the deviation calibration information that returns according to user side of base station side, the deviation of carrying out between multiple access points is calibrated " comprising:
Base station side is carried out the measurement of the poor and described Timing Synchronization deviation of described channel delay;
The measurement result of the deviation calibration information measurement result that base station side is returned according to user side and the poor and described Timing Synchronization deviation of described channel delay, carries out deviation calibration.
Further, described deviation calibration strategy is described the 3rd strategy, and described step " measurement result of the deviation calibration information that returns according to user side of base station side, the deviation of carrying out between multiple access points is calibrated " comprising:
Base station side is carried out the measurement of described phase alignment information;
The deviation calibration information measurement result that base station side is returned according to user side and the measurement result of described phase alignment information, carry out deviation calibration.
Further, described deviation calibration strategy is described the 4th strategy, and described step " measurement result of the deviation calibration information that returns according to user side of base station side, the deviation of carrying out between multiple access points is calibrated " comprising:
Base station side is carried out the measurement of described phase alignment information, Timing Synchronization deviation;
The measurement result of the deviation calibration information measurement result that base station side is returned according to user side and described phase alignment information, Timing Synchronization deviation, carries out deviation calibration.
Further, described deviation calibration strategy is described the 5th strategy, and described step " measurement result of the deviation calibration information that returns according to user side of base station side, the deviation of carrying out between multiple access points is calibrated " comprising:
Base station side is carried out described phase alignment information, the poor measurement of channel delay;
The deviation calibration information measurement result that base station side is returned according to user side and described phase alignment information, the poor measurement result of channel delay, carry out deviation calibration.
Further, described deviation calibration information measurement parameter comprises that measuring amount, metering system, the measurement result of Measurement bandwidth, user side report mode and/or measuring period, feedback cycle.
Further, described metering system comprises:
Calibrate when pre-conditioned when base station side meets the first deviation, trigger user side and carry out disposable deviation calibration information and measure by send the signaling of the deviation calibration information of measuring multiple access points to user side; Or,
User side periodically carries out the measurement of deviation calibration information; Or,
Calibrate when pre-conditioned when base station side meets the first deviation, trigger user side and start to carry out periodic deviation calibration information and measure by send the signaling of the deviation calibration information of measuring multiple access points to user side.
Further, described measurement result reports mode to comprise:
Base station side, by send the signaling of returning to deviation calibration information measurement result to user side, triggers user side deviation calibration information measurement result is carried out to disposable reporting; Or
User side periodically reports deviation calibration information; Or
Base station side is by sending the signaling of returning to deviation calibration information measurement result to user side, triggering user side starts that deviation calibration information measurement result is carried out to periodicity and reports.
The present invention also provides the measurement mechanism of the deviation calibration information between a kind of multiple access point, comprising:
Deviation is calibrated tactful determination module, determines deviation calibration strategy for base station side;
Parameter configuration module, for carrying out the configuration of deviation calibration information measurement parameter according to described deviation calibration strategy to user side;
Deviation calibration module, the measurement result of the deviation calibration information returning according to user side for base station side, carries out the deviation calibration between multiple access points.
Further, also comprise:
Signaling sending module, meets the first deviation for base station side and calibrates when pre-conditioned, sends the signaling of measuring the deviation calibration information between multiple access points trigger user side measured deviation calibration information to user side.
Further, described signaling sending module also sends the signaling of returning to deviation calibration information measurement result to user side for base station side, trigger user side deviation calibration information measurement result is reported.
Further, described signaling sends by radio resource control or physical layer descending control channel.
Further, described the first deviation is calibrated pre-conditioned comprising: base station side is carried out multicast communication and reception by multiple access points and user side, and the precoding of each access point independence;
Or base station side is carried out multicast communication and reception by multiple access points and user side, and pre-conditioned when satisfied the second deviation calibration of the downlink data parameter sending, wherein said deviation is calibrated pre-conditioned comprising:
The throughput that the Block Error Rate of downlink data is greater than the first preset value, downlink data is less than the second preset value.
Further, described deviation calibration strategy is:
The first strategy, user side is measured described phase alignment information, the poor and described Timing Synchronization deviation of described channel delay; Or
The second strategy, user side is measured described phase alignment information, and base station side is measured the poor and described Timing Synchronization deviation of described channel delay; Or
The 3rd strategy, user side is measured the poor and described Timing Synchronization deviation of described channel delay, and base station side is measured described phase alignment information; Or
The 4th strategy, it is poor that user side is measured described channel delay, and base station side is measured described Timing Synchronization deviation and described phase alignment information; Or
The 5th strategy, user side is measured described Timing Synchronization deviation, and base station side is measured the poor and described phase alignment information of described channel delay.
Further, described deviation calibration strategy is described the second strategy, and described deviation calibration module also comprises:
The first measuring unit, carries out the measurement of the poor and described Timing Synchronization deviation of described channel delay for base station side.
Further, described deviation calibration strategy is described the 3rd strategy, and described deviation calibration module also comprises:
The second measuring unit, carries out the measurement of described phase alignment information for base station side.
Further, described deviation calibration strategy is described the 4th strategy, and described deviation calibration module also comprises:
The 3rd measuring unit, carries out the measurement of described phase alignment information, Timing Synchronization deviation for base station side.
Further, described deviation calibration strategy is described the 5th strategy, and described deviation calibration module also comprises:
The 4th measuring unit, carries out described phase alignment information, the poor measurement of channel delay for base station side.
The invention has the beneficial effects as follows: while solving diverse access point simultaneously to UE transmission data, have each other the problem of deviation, promote the accuracy of delay inequality calibration, thereby improve systematic function and spectrum efficiency.
Brief description of the drawings
Fig. 1 represents the method for measurement flow chart of the deviation calibration information between the multiple access points of the present invention;
Fig. 2 represents the measurement mechanism structured flowchart of the deviation calibration information between the multiple access points of the present invention.
Embodiment
Below in conjunction with Figure of description, structure of the present invention and principle are elaborated, illustrated embodiment, only for explaining the present invention, not limits protection scope of the present invention with this.
As shown in Figure 1, the present embodiment provides the method for measurement of the deviation calibration information between a kind of multiple access point, comprising:
Base station side is determined deviation calibration strategy;
According to described deviation calibration strategy, user side is carried out to the configuration of deviation calibration information measurement parameter;
The measurement result of the deviation calibration information that base station side is returned according to user side, carries out the deviation calibration between multiple access points.
CoMP technology improves the signal receiving quality of subscriber equipment by the mode of multiple access points of multiple communities or multiple access point cooperation transmission user data of Yi Ge community, reduce presence of intercell interference, thereby effectively improve power system capacity and edge customer spectrum efficiency.And deviation between multiple access points causes systematic function to reduce.Therefore need the above-mentioned deviation that different AP points are existed to calibrate, the AP point Timing Synchronization that obtains sending data approaches that zero deflection, channel delay are poor to be close to zero and phase deviation is close to zero, and the performance of system can raise.The method of measurement of the deviation calibration information between multiple access points that the present embodiment provides has solved above-mentioned technical problem just.
Deviation calibration information measurement parameter configuration comprises the mode of user side measured deviation calibration, and it can be to carry out after not needing base station side to assign instruction triggers that user side is measured the deviation of multiple access points, can be the measurement of just carrying out after base station side triggers.
In the present embodiment, described step " measurement result of the deviation calibration information that returns according to user side of base station side is carried out the deviation calibration between multiple access points " also comprises before:
Base station side meets the first deviation calibrates when pre-conditioned, sends the signaling of measuring the deviation calibration information between multiple access points trigger user side measured deviation calibration information to user side.
User side only, in the time that base station side need to be carried out deviation calibration, is measured the suitable burden that has alleviated user side.
Described the first deviation is calibrated pre-conditioned comprising: base station side is carried out multicast communication and reception by multiple access points and user side, and the precoding of each access point independence;
Or base station side is carried out multicast communication and reception by multiple access points and user side, and pre-conditioned when satisfied the second deviation calibration of the downlink data parameter sending, wherein said deviation is calibrated pre-conditioned comprising:
The throughput that the Block Error Rate of downlink data is greater than the first preset value, downlink data is less than the second preset value.
Base station side can first determine whether to carry out the deviation calibration between multiple access points, and determine need to carry out deviation calibration first deviation calibration is pre-conditioned specifically comprises:
Base station side can be combined transmission being scheduled as CoMP, and adopts in the independent precoding of each AP point, determines the deviation calibration that will carry out between each access point.
Also can, in the actual effect of observing a period of time CoMP and sending, such as, after the parameter such as Block Error Rate, throughput of system, determine whether again to carry out the deviation calibration between an access point.For example, in the time of fixed modulation encoding scheme, the Block Error Rate of system is higher than certain thresholding, as 10%; Or fixing Block Error Rate is worth at certain, as 10%, near situation, throughput of system is during lower than certain threshold value.Determine and need to carry out the offset correction between access point.
The mode that reports of the measurement result of user side to deviation calibration information is determined by the configuration of deviation calibration information measurement parameter, can be periodically automatically to report, and can be also to report after the instruction of receiving base station side again.
In the present embodiment, described step " measurement result of the deviation calibration information that returns according to user side of base station side is carried out the deviation calibration between multiple access points " comprises before:
Base station side sends the signaling of returning to deviation calibration information measurement result to user side, trigger user side deviation calibration information measurement result is reported.
User side only need to carry out deviation when calibration in base station side, meets the first deviation and calibrates when pre-conditioned, just deviation calibration information measurement result can be reported, so that base station side is carried out deviation calibration, improve systematic function, user side can regularly report simultaneously, has alleviated burden.
In the present embodiment, described signaling sends by radio resource control or physical layer descending control channel.
Described deviation calibration information comprises phase alignment information and/or delay inequality, and described delay inequality comprises the Timing Synchronization deviation between poor and/or multiple the access points of channel delay.
Described deviation calibration strategy is:
The first strategy, user side is measured described phase alignment information, the poor and described Timing Synchronization deviation of described channel delay; Or
The second strategy, user side is measured described phase alignment information, and base station side is measured the poor and described Timing Synchronization deviation of described channel delay; Or
The 3rd strategy, user side is measured the poor and described Timing Synchronization deviation of described channel delay, and base station side is measured described phase alignment information; Or
The 4th strategy, it is poor that user side is measured described channel delay, and base station side is measured described Timing Synchronization deviation and described phase alignment information; Or
The 5th strategy, user side is measured described Timing Synchronization deviation, and base station side is measured the poor and described phase alignment information of described channel delay.
Described deviation calibration strategy is described the second strategy, and described step " measurement result of the deviation calibration information that returns according to user side of base station side, the deviation of carrying out between multiple access points is calibrated " comprising:
Base station side is carried out the measurement of the poor and described Timing Synchronization deviation of described channel delay;
The measurement result of the deviation calibration information measurement result that base station side is returned according to user side and the poor and described Timing Synchronization deviation of described channel delay, carries out deviation calibration.
Described deviation calibration strategy is described the 3rd strategy, and described step " measurement result of the deviation calibration information that returns according to user side of base station side, the deviation of carrying out between multiple access points is calibrated " comprising:
Base station side is carried out the measurement of described phase alignment information;
The deviation calibration information measurement result that base station side is returned according to user side and the measurement result of described phase alignment information, carry out deviation calibration.
Described deviation calibration strategy is described the 4th strategy, and described step " measurement result of the deviation calibration information that returns according to user side of base station side, the deviation of carrying out between multiple access points is calibrated " comprising:
Base station side is carried out the measurement of described phase alignment information, Timing Synchronization deviation;
The measurement result of the deviation calibration information measurement result that base station side is returned according to user side and described phase alignment information, Timing Synchronization deviation, carries out deviation calibration.
Described deviation calibration strategy is described the 5th strategy, and described step " measurement result of the deviation calibration information that returns according to user side of base station side, the deviation of carrying out between multiple access points is calibrated " comprising:
Base station side is carried out described phase alignment information, the poor measurement of channel delay;
The deviation calibration information measurement result that base station side is returned according to user side and described phase alignment information, the poor measurement result of channel delay, carry out deviation calibration.
In actual use, deviation is calibrated tactful setting and is decided according to the function of user side and actual burden situation.
Described deviation calibration information measurement parameter comprises that measuring amount, metering system, the measurement result of Measurement bandwidth, user side report mode and/or measuring period, feedback cycle.The configuration of described deviation calibration information measurement parameter comprises wherein one or both according to deviation calibration strategy.
Base station can be by the control of following RRC(radio resource) signaling carries out measurement parameter configuration:
Radio Resource control connection is set up message (RRC Connection Establishment)
Wireless resource control connection reconfiguration message (RRC Connection Reconfiguration)
Radio resource control connection reestablishment founds message (RRC Connection Re-establishment)
Measurement parameter can be placed in cell-specific parameters RadioResourceConfigCommonSIB IE, and the multiple UE in Ji Rang community participate in measuring.
Also can be placed in UE special parameter RadioResourceConfigDedicated IE, allow the one or more UE that specify participate in measuring.
In above-mentioned two kinds of situations, there are multiple UE to participate in, in the situation of measurement, need to carrying out statistical average in base station side, get intermediate value or getting the operation such as maximum, minimum value.
Wherein, Measurement bandwidth comprises subband, broadband, and preferably, available 1 bit represents, for example 0 expression subband, and 1 represents broadband; Or 0 represents broadband, and 1 represents subband.
Treat that the measuring amount that terminal is measured comprises:
Delay inequality and phase alignment information;
Phase alignment information;
Delay inequality, comprises the Timing Synchronization deviation of the poor and access point of Channel propagation delay;
Channel propagation delay is poor;
Timing Synchronization deviation;
Preferably, available 3 bit map represent, for example 000 represents not measure; 111 represent situation a); 001 represents situation b); 110 represent situation c); 100 represent situation d); 001 represents situation e).
Described metering system comprises:
The one-shot measurement of Event triggered: calibrate when pre-conditioned when base station side meets the first deviation, trigger user side and carry out disposable deviation calibration information and measure by send the signaling of the deviation calibration information of measuring multiple access points to user side; Or,
Periodic measurement: user side periodically carries out the measurement of deviation calibration information; Or,
The periodic measurement of Event triggered: calibrate when pre-conditioned when base station side meets the first deviation, start to carry out periodic deviation calibration information measurement by the signaling triggering user side that sends the deviation calibration information of measuring multiple access points to user side, may after some cycles, finish, also may continue to carry out periodic measurement.
Preferably, available 2 bits represent, the one-shot measurement that for example 00 presentation of events triggers, the one-shot measurement of Event triggered; 01 indication cycle's property is measured, periodic measurement; 10 represent the periodic measurement of situation Event triggered, the periodic measurement that the time triggers.
Described measurement result reports mode to comprise:
Once reporting of Event triggered: base station side, by send the signaling of returning to deviation calibration information measurement result to user side, triggers user side deviation calibration information measurement result is carried out to disposable reporting; Or
Periodically report: user side periodically reports deviation calibration information; Or
The periodic report of Event triggered: base station side is by sending the signaling of returning to deviation calibration information measurement result to user side, triggering user side starts that deviation calibration information measurement result is carried out to periodicity and reports, may after some cycles, finish, also may continue to carry out periodic measurement.
Preferably, available 2 bits represent, for example once reporting of 00 expression situation Event triggered, the one-shot measurement of Event triggered; 01 expression situation periodically reports, periodic measurement; 10 represent the periodic report of situation Event triggered, the periodic measurement that the time triggers.
Measuring period: be in periodic measurement or two kinds of situations of Event triggered period measurement in measurement triggering mode, need to be set rational measuring period, the measurement that should consider measurement demand and UE of determining in this cycle is born.Preferably, can adopt 1 second, 1 minute, 5 minutes, 10 minutes etc.
Feedback cycle: measurement result report mode be periodically report or two kinds of situations of Event triggered periodic report under, rational report cycle need to be set, the determining of this cycle should consider the expense that reports of the correction demand of base station side and UE.Preferably, can adopt 1 second, 1 minute, 5 minutes, 10 minutes etc.
Preferably, measurement triggering mode and measurement result report mode to mate as far as possible.For example: the one-shot measurement of Event triggered, adopts the mode that once reports of Event triggered to report; Periodic measurement adopts periodically and reports mode to report; The periodic measurement of Event triggered adopts the periodic report mode of Event triggered to report.It is identical that measuring period and report cycle also can keep, and like this, measures and report and can carry out successively comparatively in an orderly manner.
If measuring period and report cycle are inconsistent, can necessarily process with reference to the way that step 2 provides below.
Step 1:UE, according to the deviation between the multiple access points of RRC signaling instruction measurement, specifically comprises:
UE is receiving the measurement parameter configuration of RRC signaling instruction, and is receiving after Event triggered (the RRC signaling of measured deviation calibration information), starts to carry out a deviation calibration information and measures;
Or, be configured to the UE of periodic measurement, start to carry out the measurement of deviation calibration information by the cycle;
Or, be configured to the UE of the periodic measurement of Event triggered, receiving after Event triggered, start to carry out the measurement of deviation calibration information by the cycle.
Above-mentioned Event triggered, may be that RRC signaling triggers, and can be also that PDCCH triggers.
Step 2:UE side arranges measurement result
UE completes after measurement, can, according to measurement triggering mode and configuration measuring period, measurement result necessarily be arranged.
In the disposable measurement situation of Event triggered, UE is directly using single measurement result as final measurement.
At periodic measurement, or in the periodic measurement situation of Event triggered, the measurement result of a UE desirable nearest measuring period is final measurement; Also the measurement result of several measuring periods before can be carried out to statistical disposition, for example: be averaged, get maximum, minimum value, intermediate value etc., using result as final measurement, UE can adopt the mode of window sliding, continues to carry out such statistical disposition.
Periodically report, or the periodicity of Event triggered reports in situation, the measurement result of a UE desirable nearest measuring period is final measurement; UE can carry out statistical disposition by all measured values that obtain between two report cycles, for example: be averaged, get maximum, minimum value, intermediate value etc., using result as final measurement, UE can adopt the mode of window sliding, continues to carry out such statistical disposition.
Step 3:UE side rrc layer entity, by RRC signaling, to the rrc layer entity feedback measurement result of base station side
UE measures after deviation calibration information, should, according to reporting the configuration of mode and report cycle, carry out filling in of measurement result, and is included in and in measurement report message, sends to network.
Step 4: the measurement result that base station obtains according to rrc layer entity, carry out the deviation calibration between multiple access points.
If UE measures delay inequality and phase alignment information between access point simultaneously, base station is directly used the measurement result that UE reports to carry out offset correction.
If UE only measures phase alignment information, base station side need be carried out delay inequality measurement, then carries out offset correction;
If UE only measures delay inequality, comprise the Timing Synchronization deviation of the poor and access point of Channel propagation delay, phase alignment information need be measured in base station, then carries out offset correction;
If it is poor that UE only measures Channel propagation delay, Timing Synchronization deviation and phase alignment information need to be measured in base station, then carry out offset correction.
If UE only measures Timing Synchronization deviation, poor the and phase alignment information of Channel propagation delay need to be measured in base station, then carries out offset correction.
As shown in Figure 2, the present invention also provides the measurement mechanism of the deviation calibration information between a kind of multiple access point, comprising:
Deviation is calibrated tactful determination module, determines deviation calibration strategy for base station side;
Parameter configuration module, for carrying out the configuration of deviation calibration information measurement parameter according to described deviation calibration strategy to user side;
Deviation calibration module, the measurement result of the deviation calibration information returning according to user side for base station side, carries out the deviation calibration between multiple access points.
Further, also comprise:
Signaling sending module, meets the first deviation for base station side and calibrates when pre-conditioned, sends the signaling of measuring the deviation calibration information between multiple access points trigger user side measured deviation calibration information to user side.
Further, described signaling sending module also sends the signaling of returning to deviation calibration information measurement result to user side for base station side, trigger user side deviation calibration information measurement result is reported.
Further, described signaling sends by radio resource control or physical layer descending control channel.
Further, described the first deviation is calibrated pre-conditioned comprising: base station side is carried out multicast communication and reception by multiple access points and user side, and the precoding of each access point independence;
Or base station side is carried out multicast communication and reception by multiple access points and user side, and pre-conditioned when satisfied the second deviation calibration of the downlink data parameter sending, wherein said deviation is calibrated pre-conditioned comprising:
The throughput that the Block Error Rate of downlink data is greater than the first preset value, downlink data is less than the second preset value.
Further, described deviation calibration strategy comprises:
The first strategy, user side is measured described phase alignment information, the poor and described Timing Synchronization deviation of described channel delay;
The second strategy, user side is measured described phase alignment information, and base station side is measured the poor and described Timing Synchronization deviation of described channel delay;
The 3rd strategy, user side is measured the poor and described Timing Synchronization deviation of described channel delay, and base station side is measured described phase alignment information;
The 4th strategy, it is poor that user side is measured described channel delay, and base station side is measured described Timing Synchronization deviation and described phase alignment information;
The 5th strategy, user side is measured described Timing Synchronization deviation, and base station side is measured the poor and described phase alignment information of described channel delay.
Further, described deviation calibration strategy is described the second strategy, and described deviation calibration module also comprises:
The first measuring unit, carries out the measurement of the poor and described Timing Synchronization deviation of described channel delay for base station side.
Further, described deviation calibration strategy is described the 3rd strategy, and described deviation calibration module also comprises:
The second measuring unit, carries out the measurement of described phase alignment information for base station side.
Further, described deviation calibration strategy is described the 4th strategy, and described deviation calibration module also comprises:
The 3rd measuring unit, carries out the measurement of described phase alignment information, Timing Synchronization deviation for base station side.
Further, described deviation calibration strategy is described the 5th strategy, and described deviation calibration module also comprises:
The 4th measuring unit, carries out described phase alignment information, the poor measurement of channel delay for base station side.
The above is preferred embodiment of the present invention, it should be pointed out that to those skilled in the art, not departing under the prerequisite of principle of the present invention, can also make some improvements and modifications, and these improvements and modifications also should be considered as protection range of the present invention.
Claims (22)
1. a method of measurement for the deviation calibration information between multiple access points, is characterized in that, comprising:
Base station side is determined deviation calibration strategy;
According to described deviation calibration strategy, user side is carried out to the configuration of deviation calibration information measurement parameter;
The measurement result of the deviation calibration information that base station side is returned according to user side, carries out the deviation calibration between multiple access points.
2. the method for measurement of the deviation calibration information between multiple access point according to claim 1, it is characterized in that, described step " measurement result of the deviation calibration information that returns according to user side of base station side is carried out the deviation calibration between multiple access points " also comprises before:
Base station side meets the first deviation and calibrates when pre-conditioned, send the signaling triggering user side measured deviation calibration information of measuring the deviation calibration information between multiple access points to user side, described the first deviation is calibrated pre-conditioned comprising: base station side is carried out multicast communication and reception by multiple access points and user side, and the precoding of each access point independence;
Or base station side is carried out multicast communication and reception by multiple access points and user side, and pre-conditioned when satisfied the second deviation calibration of the downlink data parameter sending, wherein said deviation is calibrated pre-conditioned comprising:
The throughput that the Block Error Rate of downlink data is greater than the first preset value, downlink data is less than the second preset value.
3. the method for measurement of the deviation calibration information between multiple access point according to claim 1, it is characterized in that, described step " measurement result of the deviation calibration information that returns according to user side of base station side is carried out the deviation calibration between multiple access points " comprises before:
Base station side sends the signaling of returning to deviation calibration information measurement result to user side, trigger user side deviation calibration information measurement result is reported.
4. according to the method for measurement of the deviation calibration information between the multiple access points of the triggering described in claim 2 or 3, it is characterized in that, described signaling sends by radio resource control or physical layer descending control channel.
5. according to the method for measurement of the deviation calibration information between the multiple access points described in claim 1-3 any one, it is characterized in that, described deviation calibration information comprises phase alignment information and/or delay inequality, and described delay inequality comprises the Timing Synchronization deviation between poor and/or multiple the access points of channel delay.
6. the method for measurement of the deviation calibration information between multiple access point according to claim 5, is characterized in that, described deviation calibration strategy is:
The first strategy, user side is measured described phase alignment information, the poor and described Timing Synchronization deviation of described channel delay; Or
The second strategy, user side is measured described phase alignment information, and base station side is measured the poor and described Timing Synchronization deviation of described channel delay; Or
The 3rd strategy, user side is measured the poor and described Timing Synchronization deviation of described channel delay, and base station side is measured described phase alignment information; Or
The 4th strategy, it is poor that user side is measured described channel delay, and base station side is measured described Timing Synchronization deviation and described phase alignment information; Or
The 5th strategy, user side is measured described Timing Synchronization deviation, and base station side is measured the poor and described phase alignment information of described channel delay.
7. the method for measurement of the deviation calibration information between multiple access point according to claim 6, is characterized in that,
Described deviation calibration strategy is described the second strategy, and described step " measurement result of the deviation calibration information that returns according to user side of base station side, the deviation of carrying out between multiple access points is calibrated " comprising:
Base station side is carried out the measurement of the poor and described Timing Synchronization deviation of described channel delay;
The measurement result of the deviation calibration information measurement result that base station side is returned according to user side and the poor and described Timing Synchronization deviation of described channel delay, carries out deviation calibration.
8. the method for measurement of the deviation calibration information between multiple access point according to claim 6, it is characterized in that, described deviation calibration strategy is described the 3rd strategy, described step " measurement result of the deviation calibration information that returns according to user side of base station side is carried out the deviation calibration between multiple access points " comprising:
Base station side is carried out the measurement of described phase alignment information;
The deviation calibration information measurement result that base station side is returned according to user side and the measurement result of described phase alignment information, carry out deviation calibration.
9. the method for measurement of the deviation calibration information between multiple access point according to claim 6, it is characterized in that, described deviation calibration strategy is described the 4th strategy, described step " measurement result of the deviation calibration information that returns according to user side of base station side is carried out the deviation calibration between multiple access points " comprising:
Base station side is carried out the measurement of described phase alignment information, Timing Synchronization deviation;
The measurement result of the deviation calibration information measurement result that base station side is returned according to user side and described phase alignment information, Timing Synchronization deviation, carries out deviation calibration.
10. the method for measurement of the deviation calibration information between multiple access point according to claim 6, it is characterized in that, described deviation calibration strategy is described the 5th strategy, described step " measurement result of the deviation calibration information that returns according to user side of base station side is carried out the deviation calibration between multiple access points " comprising:
Base station side is carried out described phase alignment information, the poor measurement of channel delay;
The deviation calibration information measurement result that base station side is returned according to user side and described phase alignment information, the poor measurement result of channel delay, carry out deviation calibration.
The method of measurement of the deviation calibration information between 11. multiple access points according to claim 1, it is characterized in that, described deviation calibration information measurement parameter comprises that measuring amount, metering system, the measurement result of Measurement bandwidth, user side report mode and/or measuring period, feedback cycle.
The method of measurement of the deviation calibration information between 12. multiple access points according to claim 11, is characterized in that, described metering system comprises:
Calibrate when pre-conditioned when base station side meets the first deviation, trigger user side and carry out disposable deviation calibration information and measure by send the signaling of the deviation calibration information of measuring multiple access points to user side; Or,
User side periodically carries out the measurement of deviation calibration information; Or,
Calibrate when pre-conditioned when base station side meets the first deviation, trigger user side and start to carry out periodic deviation calibration information and measure by send the signaling of the deviation calibration information of measuring multiple access points to user side.
The method of measurement of the deviation calibration information between 13. multiple access points according to claim 11, is characterized in that, described measurement result reports mode to comprise:
Base station side, by send the signaling of returning to deviation calibration information measurement result to user side, triggers user side deviation calibration information measurement result is carried out to disposable reporting; Or
User side periodically reports deviation calibration information; Or
Base station side is by sending the signaling of returning to deviation calibration information measurement result to user side, triggering user side starts that deviation calibration information measurement result is carried out to periodicity and reports.
The measurement mechanism of the deviation calibration information between 14. 1 kinds of multiple access points, is characterized in that, comprising:
Deviation is calibrated tactful determination module, determines deviation calibration strategy for base station side;
Parameter configuration module, for carrying out the configuration of deviation calibration information measurement parameter according to described deviation calibration strategy to user side;
Deviation calibration module, the measurement result of the deviation calibration information returning according to user side for base station side, carries out the deviation calibration between multiple access points.
The measurement mechanism of the deviation calibration information between 15. multiple access points according to claim 14, is characterized in that, also comprises:
Signaling sending module, meets the first deviation for base station side and calibrates when pre-conditioned, sends the signaling of measuring the deviation calibration information between multiple access points and triggers user side measured deviation calibration information, wherein to user side
Described the first deviation is calibrated pre-conditioned comprising: base station side is carried out multicast communication and reception by multiple access points and user side, and the precoding of each access point independence;
Or base station side is carried out multicast communication and reception by multiple access points and user side, and pre-conditioned when satisfied the second deviation calibration of the downlink data parameter sending, wherein said deviation is calibrated pre-conditioned comprising:
The throughput that the Block Error Rate of downlink data is greater than the first preset value, downlink data is less than the second preset value.
The measurement mechanism of the deviation calibration information between 16. multiple access points according to claim 15, it is characterized in that, described signaling sending module also sends the signaling of returning to deviation calibration information measurement result to user side for base station side, trigger user side deviation calibration information measurement result is reported.
17. according to the measurement mechanism of the deviation calibration information between the multiple access points described in claims 14 or 15, it is characterized in that, described signaling sends by radio resource control or physical layer descending control channel.
The measurement mechanism of the deviation calibration information between 18. multiple access points according to claim 14, is characterized in that, described deviation calibration strategy is:
The first strategy, user side is measured described phase alignment information, the poor and described Timing Synchronization deviation of described channel delay; Or
The second strategy, user side is measured described phase alignment information, and base station side is measured the poor and described Timing Synchronization deviation of described channel delay; Or
The 3rd strategy, user side is measured the poor and described Timing Synchronization deviation of described channel delay, and base station side is measured described phase alignment information; Or
The 4th strategy, it is poor that user side is measured described channel delay, and base station side is measured described Timing Synchronization deviation and described phase alignment information; Or
The 5th strategy, user side is measured described Timing Synchronization deviation, and base station side is measured the poor and described phase alignment information of described channel delay.
The measurement mechanism of the deviation calibration information between 19. multiple access points according to claim 18, is characterized in that, described deviation calibration strategy is described the second strategy, and described deviation calibration module also comprises:
The first measuring unit, carries out the measurement of the poor and described Timing Synchronization deviation of described channel delay for base station side.
The measurement mechanism of the deviation calibration information between 20. multiple access points according to claim 18, is characterized in that, described deviation calibration strategy is described the 3rd strategy, and described deviation calibration module also comprises:
The second measuring unit, carries out the measurement of described phase alignment information for base station side.
The measurement mechanism of the deviation calibration information between 21. multiple access points according to claim 18, is characterized in that, described deviation calibration strategy is described the 4th strategy, and described deviation calibration module also comprises:
The 3rd measuring unit, carries out the measurement of described phase alignment information, Timing Synchronization deviation for base station side.
The measurement mechanism of the deviation calibration information between 22. multiple access points according to claim 18, is characterized in that, described deviation calibration strategy is described the 5th strategy, and described deviation calibration module also comprises:
The 4th measuring unit, carries out described phase alignment information, the poor measurement of channel delay for base station side.
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| CN201310148365.4A CN104125589A (en) | 2013-04-25 | 2013-04-25 | Measuring method of deviation calibration information among multiple access points and device thereof |
| PCT/CN2014/076065 WO2014173303A1 (en) | 2013-04-25 | 2014-04-23 | Method and device for measuring deviation calibration information between multiple access points |
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| WO2022194299A1 (en) * | 2021-03-19 | 2022-09-22 | 中国移动通信有限公司研究院 | Determination method for measurement configuration information, and configuration method, terminal, and network side device |
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