CN105050195B - A kind of dispatching method and device of LTE-A network user - Google Patents
A kind of dispatching method and device of LTE-A network user Download PDFInfo
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
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- H04W72/12—Wireless traffic scheduling
- H04W72/1263—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows
Abstract
This application discloses a kind of dispatching methods and device of the LTE A network users.This method corresponds to the first ratio value shared by LTE user and the second ratio value shared by the corresponding LTE user of a upper CSI subframe by comparing current CSI RS subframes, and the second average block error rate of the first average block error rate and the corresponding LTE user of upper CSI RS subframes of the corresponding LTE user of current CSI RS subframes, dynamically to adjust the transmission cycle of CSI RS subframes, the performance decline that dynamic reduction CSI RS subframes are brought to LTE user.Compared with prior art, the present invention can be achieved to adjust the dynamic in CSI RS sub-frame transmission periods, without artificial setting threshold value, that is to say, that the interference without human factor in entire user's scheduling process, thus improve the accuracy that user dispatches in LTE A networks.
Description
Technical field
This application involves mobile communication technology fields, more specifically to a kind of dispatching method of LTE-A network user
And device.
Background technology
In order to support higher downlink transmission rate, in current LTE-A (Long Term Evolution
Advanced, long-term evolution strengthening technology) in network, introduce CSI-RS subframes (Channel Statement
Information Reference Signal, channel state information reference signals).CSI-RS subframes improve down channel survey
The accuracy of amount supports the downlink MIMO of higher exponent number simultaneously, so as to improve the downlink performance of LTE-A user.However,
When CSI-RS sub-frame transmissions, since original LTE user can not cannot identify the CSI-RS subframes introduced in LTE-A, still
It is seen as effective user's downlink data, to affect the demodulation performance of LTE user.
On the one hand introducing of the CSI-RS subframes in LTE-A network improves LTE-A user performances, on the other hand can be to net
Original LTE user performances bring loss in network, then when the user of the two different editions coexists how in the two
Compromise is obtained between energy, this is a problem for having to solve in real network deployment.
For this purpose, determining the tune of user by comparing LTE user's proportion value and predetermined threshold value in the prior art
Degree method.However LTE user and LTE-A numbers of users are continuous variations of floating in real network, and the predetermined threshold value is
Artificially it is arranged, thus can not ensures the accuracy of user's scheduling.
Invention content
In view of this, the application provides a kind of dispatching method and device of LTE-A network user, to improve LTE-A network
The accuracy of user's scheduling.
To achieve the goals above, it is proposed that scheme it is as follows：
A kind of dispatching method of LTE-A network user, including：
Establish LTE user lists and LTE-A user lists that current subframe needs descending scheduling；
If current subframe is CSI-RS subframes, the corresponding LTE user of current CSI-RS subframes is calculated in LTE-A network
Shared first ratio value and the first average block error rate of LTE user in all users；
If when the non-first CSI-RS subframes of current subframe, first ratio value and last CSI-RS subframes are corresponding
Second average mistake of the second ratio value of LTE user and the first average block error rate and the corresponding LTE user of last CSI-RS subframes
Block rate；
According to the comparison result and first average block error rate of first ratio value and second ratio value with
And second average block error rate comparison result, the transmission cycle of CSI-RS subframes is adjusted.
Preferably, the LTE user lists and LTE-A user lists established current subframe and need descending scheduling, including：
Obtain all users that current subframe needs descending scheduling；
Judge whether each user is configured with CSI-RS；
If so, using the user as LTE-A user, if otherwise using the user as LTE user；
Establish LET-A user lists and LTE user lists.
Preferably, first average block error rate for calculating the corresponding LTE user of current CSI-RS subframes, including：
Obtain the Block Error Rate of the corresponding each LTE users of current CSI-RS；
The average value for calculating the Block Error Rate of all LTE users obtains first average block error rate.
Preferably, the comparison result and described first according to first ratio value and second ratio value
The comparison result of average block error rate and the second average block error rate is adjusted the transmission cycle of CSI-RS subframes, including：
If first ratio value is more than second ratio value, and first average block error rate is flat more than described second
Equal Block Error Rate then sets the transmission cycle of CSI-RS subframes to 2 times of current value；
If first ratio value is more than second ratio value, and first average block error rate is less than or equal to described the
Two average block error rates then keep the transmission cycle of CSI-RS subframes constant；
If first ratio value is less than second ratio value, and first average block error rate is flat less than described second
Equal Block Error Rate then sets the transmission cycle of CSI-RS subframes to the half of current value；
If first ratio value is less than second ratio value, and first average block error rate is flat more than described second
The transmission cycle of CSI-RS subframes is then set as 2 times when time value by equal Block Error Rate.
Preferably, after the transmission cycle to CSI-RS subframes is adjusted, further include：
Determine current subframe type, the first maximum scheduling metrics value and the second maximum scheduling metrics value；Wherein, described first
Maximum scheduling metrics value is the maximum scheduling metrics value in all LTE users, and the described second maximum scheduling metrics value is all
Maximum scheduling metrics value in LTE-A user；
According to current subframe type, the first maximum scheduling metrics value and the second maximum scheduling metrics value, adjustment LTE user's row
Table and LTE-A user lists.
Preferably, after the transmission cycle to CSI-RS subframes is adjusted, further include：
Determine the maximum scheduling number of users of current subframe type and current subframe；
According to the maximum scheduling number of users of current subframe type and current subframe, LTE user lists and LTE-A user are adjusted
List.
Preferably, the maximum scheduling metrics value of the determination first and the second maximum scheduling metrics value, including：
The scheduling metrics value of each LTE user and each LTE-A user are calculated according to preset formula；
Using maximum scheduling metrics value in all LTE users as the first maximum scheduling metrics value, in all LTE-A users
Maximum scheduling metrics value is as the second maximum scheduling metrics value；
Wherein, the preset formula is M=QOS/BLER, M=N/BLER or M=N*QOS；
M is scheduling metrics value, N is downlink data amount, BLER is Block Error Rate, QOS is service quality value
A kind of dispatching device of LTE-A network user, including：
User list creating unit needs LTE user lists and the LTE-A user of descending scheduling for establishing current subframe
List；
If computing unit calculates the corresponding LTE user of current CIS-RS subframes be CSI-RS subframes for current subframe
Shared first ratio value and the first average block error rate of LTE user in all users of LTE-A network；
Comparing unit, if when for the non-first CSI-RS subframes of current subframe, first ratio value and last
Corresponding the second ratio value of LTE user of CSI-RS subframes and the first average block error rate and the corresponding LTE of last CSI-RS subframes
The second average block error rate of user；
Cycle adjusting unit, for the comparison result according to first ratio value and second ratio value, Yi Jisuo
The comparison result for stating the first average block error rate and the second average block error rate is adjusted the transmission cycle of CSI-RS subframes.
Preferably, the user list creating unit includes：
User acquires subelement, and all users of descending scheduling are needed for obtaining current subframe；
User type determination subelement, for judging whether each user is configured with CSI-RS, if so, by the user
As LTE-A user, if otherwise using the user as LTE user；
List creating subelement, for establishing LET-A user lists and LTE user lists.
Preferably, the computing unit includes：
First computation subunit, it is useful in the institute of LTE-A network for calculating the corresponding LTE user of current CIS-RS subframes
Shared first ratio value in family；
Block Error Rate acquires subelement, the Block Error Rate for obtaining the corresponding each LTE users of current CSI-RS；
Second computation subunit, the average value of the Block Error Rate for calculating all LTE users obtain described first averagely accidentally
Block rate.
As can be seen from the above technical solutions, this application discloses a kind of dispatching methods and device of LTE-A network user.It should
Method corresponds to the first ratio value and the corresponding LTE of a upper CSI subframe shared by LTE user by comparing current CSI-RS subframes
The second ratio value shared by user, and the first average block error rate of the corresponding LTE user of current CSI-RS subframes and one upper
The second average block error rate of the corresponding LTE user of CSI-RS subframes dynamically subtracts dynamically to adjust the transmission cycle of CSI-RS subframes
Small CSI-RS subframes decline to the performance that LTE user brings.Compared with prior art, the present invention can be achieved to pass CRI-RS subframes
The dynamic in defeated period adjusts, without artificial setting threshold value, that is to say, that without human factor in entire user's scheduling process
Interference, thus improve the accuracy that user dispatches in LTE-A network.
Description of the drawings
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
The embodiment of invention for those of ordinary skill in the art without creative efforts, can also basis
The attached drawing of offer obtains other attached drawings.
Fig. 1 shows a kind of dispatching method of LTE-A network user disclosed in one embodiment of the invention；
Fig. 2 shows a kind of LTE-A network user scheduling methods disclosed in another embodiment of the present invention；
Fig. 3 shows a kind of LTE-A network user scheduling method disclosed in another embodiment of the present invention；
Fig. 4 shows a kind of LTE-A network user dispatching device disclosed in another embodiment of the present invention.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Embodiment one
A kind of dispatching method of LTE-A network user disclosed in one embodiment of the invention is shown referring to Fig. 1, Fig. 1.
As shown in Figure 1, in the present embodiment, this method includes：
101：It establishes on current subframe and needs the LTE user lists and LTE-A user lists of descending scheduling.
Optionally, can by base station obtain current subframe on need carry out descending scheduling all users, then according to
Whether family, which is configured with CSI-RS, is included into user in the user list of corresponding establishment.It should if user configuration CSI-RS
User is included into LTE-A user lists, otherwise the user is added in LTE user lists if not configuring CSI-RS.
102：When current subframe is CIS-RS subframes, the corresponding LTE user of current CIS-RS subframes is calculated in LTE-A network
All users in shared first ratio value and the first average block error rate of LTE user.
The process specifically includes：
A：Judge current subframe type.
Judge whether current subframe is that CSI-RS subframes (judge whether to be configured on current subframe and need to carry out CSI-RS
Transmission).Its deterministic process is as follows：
Whether current subframe is that CSI-RS subframes can be according to formula：
With the CSI-RS offsets of configuration and
Period is judged.
Wherein：nfRepresent System Frame Number, nsRepresent timeslot number, ΔCSI-RSRepresent CSI-RS offsets, TCSI-RSRepresent CSI-
RS period of sub-frame.
B：Calculate the first ratio value shared by the corresponding LTE user of current subframe.
Specifically, the LTE user lists in statistic procedure 101 and LTE-A user if current subframe is CSI-RS subframes
Number of users in list calculates LTE user's proportion value, i.e. the first ratio value.
C：Calculate the first average block error rate of the corresponding LTE user of current subframe.
Block Error Rate includes user uplink and downlink Block Error Rate, because relating only to the transmission of down user data here,
So Block Error Rate mentioned here refers only to downlink Block Error Rate.
Specifically, the downlink Block Error Rate of each LTE user is obtained, then to downlink Block Error Rate all in user list
It averages, i.e. the first average block error rate.
103：If when the non-first CSI-RS subframes of current subframe, first ratio value and last CSI-RS subframes pair
The second of the second ratio value of LTE user answered and the first average block error rate and the corresponding LTE user of last CSI-RS subframes is flat
Equal Block Error Rate.
It should be noted that needing to precalculate current CSI-RS subframes in comparison procedure to be first CSI-RS of system
When frame, the ratio value and average block error rate of LTE user.
Judge current subframe whether be system configuration first CSI-RS subframe, Rule of judgment is to see above judgement to work as
Whether whether preceding subframe be to meet in CSI-RS sub-frame proceduresIf meeting this condition when
Preceding subframe is first CSI-RS subframe in system, and otherwise current CSI-RS subframes are not first CSI-RS in system
Frame.
104：Block is averagely missed according to the comparison result of first ratio value and second ratio value and described first
The comparison result of rate and the second average block error rate is adjusted the transmission cycle of CSI-RS subframes.
Optionally, if first ratio value is more than second ratio value, and first average block error rate is more than institute
The second average block error rate is stated, then sets the transmission cycle of CSI-RS subframes to 2 times of current value；
If first ratio value is more than second ratio value, and first average block error rate is less than or equal to described the
Two average block error rates then keep the transmission cycle of CSI-RS subframes constant；
If first ratio value is less than second ratio value, and first average block error rate is flat less than described second
Equal Block Error Rate then sets the transmission cycle of CSI-RS subframes to the half of current value；
If first ratio value is less than second ratio value, and first average block error rate is flat more than described second
The transmission cycle of CSI-RS subframes is then set as 2 times when time value by equal Block Error Rate.
By embodiment one it is found that this application discloses a kind of dispatching methods of LTE-A network user.This method is by comparing
Current CSI-RS subframes correspond to the shared by the first ratio value and the corresponding LTE user of a upper CSI subframe shared by LTE user
Two ratio values, and the first average block error rate of the corresponding LTE user of current CSI-RS subframes and a upper CSI-RS subframe pair
The second average block error rate of the LTE user answered, dynamically to adjust the transmission cycle of CSI-RS subframes, dynamic reduces CSI-RS subframes
Decline to the performance that LTE user brings.Compared with prior art, the dynamic to the CRI-RS sub-frame transmission periods can be achieved in the present invention
Adjustment, without artificial setting threshold value, that is to say, that the interference without human factor in entire user's scheduling process, thus improve
The accuracy that user dispatches in LTE-A network.
Embodiment two
Referring to Fig. 2, Fig. 2 shows a kind of LTE-A network user scheduling methods disclosed in another embodiment of the present invention.
In the present embodiment after completing to the adjustment in CSI-RS sub-frame transmission periods, the LTE user lists of foundation and LTE-A user are arranged
Table is adjusted, and the user to advanced optimize LTE-A network dispatches.
As shown in Figure 2, this method includes：
201：It establishes on current subframe and needs the LTE user lists and LTE-A user lists of descending scheduling.
202：When current subframe is CIS-RS subframes, the corresponding LTE user of current CIS-RS subframes is calculated in LTE-A network
All users in shared first ratio value and the first average block error rate of LTE user；
203：If when the non-first CSI-RS subframes of current subframe, first ratio value and last CSI-RS subframes pair
The second of the second ratio value of LTE user answered and the first average block error rate and the corresponding LTE user of last CSI-RS subframes is flat
Equal Block Error Rate.
204：Block is averagely missed according to the comparison result of first ratio value and second ratio value and described first
The comparison result of rate and the second average block error rate is adjusted the transmission cycle of CSI-RS subframes.
205：Determine current subframe type, the first maximum scheduling metrics value and the second maximum scheduling metrics value.
Wherein, the described first maximum scheduling metrics value is maximum value in the scheduling metrics value of all LTE users, and second most
Big scheduling metrics value is maximum value in the scheduling metrics value of all LTE-A users.
It should be noted that the requirement due to different business to LTE-A network is different, thus operator in the present embodiment
Member can be defined the scheduling metrics value according to different business needs.
Optionally, those require the service quality QOS values (Quality of Service) of business more stringent
System can then define scheduling degree metric M=QOS/BLER.
Those systems larger to downlink data amount can be considered and made using the ratio of downlink data amount and Block Error Rate
For scheduling metrics value, i.e. M=N/BLER.
Higher system simultaneously is required to QOS and downlink data amount for those, it may be considered that use the lower line number of user
According to amount and the product of QOS metrics as scheduling metrics value, i.e. M=N*QOS.
Wherein, M is scheduling metrics value, N is downlink data amount, BLER is Block Error Rate, QOS is service quality value.
206：It is used according to current subframe type, the first maximum scheduling metrics value and the second maximum scheduling metrics value, adjustment LTE
Family list and LTE-A user lists.
Wherein, if current subframe is CSI subframes, then searching loop LTE-A user lists judge that LTE-A user arranges
It is more than the user of the first maximum scheduling metrics value in table with the presence or absence of the scheduling metrics value of user, and if it exists, by the LTE-A user
The front ends of LTE user lists is added into user list.
If current subframe be CSI-RS subframes, searching loop LTE user lists, then judge be in LTE user lists
No there are the users that user's scheduling metrics value is more than the second maximum scheduling metrics value, and if it exists, the LTE user is added to LTE-
The front end of party A-subscriber's list, and adjust MCS (Modulation and Coding Scheme, modulation and the coding of the LTE user
Strategy).
Here the step of adjusting the MCS of the LTE user is as follows：
It extracts the Block Error Rate of the LTE user and then judges whether its Block Error Rate is more than 0.1.
If the Block Error Rate of current LTE user is more than 0.1, and active user reports the MCS value of acquisition according to channel measurement
Its MCS value is subtracted 2 on the basis of original more than 1；Its MCS value is arranged if the Block Error Rate of current LTE user is less than 0.1
To subtract 1 on the basis of obtaining resulting value by channel measurement originally.
Embodiment three
A kind of LTE-A network user scheduling method disclosed in another embodiment of the present invention is shown referring to Fig. 3, Fig. 3.
301：It establishes on current subframe and needs the LTE user lists and LTE-A user lists of descending scheduling.
302：When current subframe is CIS-RS subframes, the corresponding LTE user of current CIS-RS subframes is calculated in LTE-A network
All users in shared first ratio value and the first average block error rate of LTE user；
303：If when the non-first CSI-RS subframes of current subframe, first ratio value and last CSI-RS subframes pair
The second of the second ratio value of LTE user answered and the first average block error rate and the corresponding LTE user of last CSI-RS subframes is flat
Equal Block Error Rate.
304：Block is averagely missed according to the comparison result of first ratio value and second ratio value and described first
The comparison result of rate and the second average block error rate is adjusted the transmission cycle of CSI-RS subframes.
305：Determine the maximum scheduling number of users of current subframe type and current subframe.
306：According to the maximum scheduling number of users of current subframe type and current subframe, LTE user lists and LTE-A are adjusted
User list.
Wherein, current subframe is CSI subframes, if number of users is dispatched more than current subframe maximum in current LTE user lists
Number of users (since running time-frequency resource is limited on downlink subframe, so the number of users that can be dispatched in single subframe is limited, takes here
The 60% of community user number), then user's scheduling metrics value small portion LTE user in LTE user lists is removed into list
It is equal to downlink subframe maximum scheduling number of users to meet number of users in LTE user lists；If number of users in current LTE user lists
Number of users is dispatched less than downlink subframe maximum, then continues the larger user of user metric value in LTE-A user lists being put into
It is equal to downlink subframe maximum scheduling number of users until meeting number of users in LTE user lists in LTE user lists, constitutes final energy
The user list enough dispatched.
Current subframe is CSI-RS subframes, if number of users is more than maximum downstream scheduling user in current LTE-A user lists
Number then removes user's scheduling metrics value small portion user in LTE-A user lists to meet in LTE-A user lists
Number of users, which is equal to downlink subframe maximum, dispatches number of users；If it is maximum to be less than downlink subframe for number of users in current LTE-A user lists
Number of users is dispatched, then chooses user's scheduling metrics value larger portion user in LTE user lists and puts it into LTE-A use
So that number of users is equal to downlink subframe maximum and dispatches number of users in LTE-A user lists, at the same time in order to reduce in the list of family
CSI-RS needs to adjust the MCS of this part LTE user to performance loss caused by LTE user, what composition can finally dispatch
User list.Here set-up procedure is as follows：
It extracts the Block Error Rate of the LTE user and then judges whether its Block Error Rate is more than 0.1.
If the Block Error Rate of current LTE user is more than 0.1, and active user reports the MCS value of acquisition according to channel measurement
Its MCS value is subtracted 2 on the basis of original more than 1；Its MCS value is arranged if the Block Error Rate of current LTE user is less than 0.1
To subtract 1 on the basis of obtaining resulting value by channel measurement originally.
It should be noted that in order to advanced optimize user scheduling method in other embodiment disclosed by the invention, it can
On the basis of embodiment two, further according to the maximum scheduling number of users of current subframe type and current subframe, adjustment LTE is used
Family list and LTE-A user lists, to realize the optimization of user's scheduling.
Total described, above example disclosed by the invention has the following advantages：
1. the calculating of user metric value.A new measurement for weighing dispatching priority of users is introduced in the program
Value --- user's scheduling metrics value, wherein QOS values embody the priority of customer service, and BLER is user's Block Error Rate, indirectly
The quality of user performance is embodied, the smaller user's receiving terminal performance of Block Error Rate is better, is here user's scheduling with this ratio
Degrees of priority levels magnitude so that service priority is higher and the user of better performances can preferentially obtain resource, full to a certain extent
Foot User Priority requirement；
2. dynamic subscriber selects and sequence.It is dispatched and is used according to the user's scheduling metrics value and downlink subframe maximum being recently introduced
Amount come adjust the user list that can be dispatched on current subframe and scheduling sequencing, both ensure that the QOS of customer service was wanted
Ask the most effective utilization for also ensuring that resource.
3. the dynamic adjustment CSI-RS transmission period.According to the Block Error Rate of LTE user's proportion value and LTE user in cell
In the dynamic adjustment CSI-RS transmission period, reduce loss to the full extent, ensures that CSI-RS period assignments make system performance reach
Most preferably.
Example IV
A kind of LTE-A network user dispatching device disclosed in another embodiment of the present invention is shown referring to Fig. 4, Fig. 4.
As shown in Figure 4, which includes：User list creating unit 1, computing unit 2, comparing unit 3 and period tune
Whole unit 4.
Wherein, user list creating unit is for establishing LTE user lists and LTE-A that current subframe needs descending scheduling
User list.Specifically, otherwise the user is then included into LTE-A user lists by user configuration CSI-RS, if not matching
CSI-RS is set then the user is added in LTE user lists.
Computing unit for current subframe be CSI-RS subframes when, calculate the corresponding LTE user of current CSI-RS subframes and exist
Shared first ratio value and the first average block error rate of LTE user in all users of LTE-A network.
When comparing unit is for current subframe non-first CSI-RS subframes, first ratio value and last CSI-RS
Corresponding the second ratio value of LTE user of subframe and the first average block error rate and the corresponding LTE user's of last CSI-RS subframes
Second average block error rate.
Cycle adjusting unit is used for according to the comparison result of first ratio value and second ratio value and described
The comparison result of first average block error rate and the second average block error rate is adjusted the transmission cycle of CSI-RS subframes.
It should be noted that device disclosed in the present embodiment and a kind of LTE-A network user disclosed in embodiment one
Dispatching method is mutually applicable in.User list creating unit, computing unit, comparing unit and the CSI-RS period of sub-frame tune of the device
The specific implementation of whole unit illustrates in embodiment one, and therefore not to repeat here.
Optionally, in other embodiment disclosed by the invention, the user list creating unit of the device includes：User adopts
Collect subelement, user type determination subelement and list creating subelement.Wherein, it is current for obtaining to acquire subelement by user
Subframe needs all users of descending scheduling.User type determination subelement, for judging whether each user is configured with
CSI-RS, if so, using the user as LTE-A user, if otherwise using the user as LTE user.List creating subelement,
For establishing LET-A user lists and LTE user lists.
The computing unit of the device includes：It is single that first computation subunit, Block Error Rate acquisition subelement and second calculate son
Member.Wherein, it is useful in the institute of LTE-A network to be used to calculate the corresponding LTE user of current CIS-RS subframes for the first computation subunit
Shared first ratio value in family.Block Error Rate acquires subelement, the mistake block for obtaining the corresponding each LTE users of current CSI-RS
Rate.Second computation subunit, the average value of the Block Error Rate for calculating all LTE users obtain first average block error rate.
Finally, it is to be noted that, herein, relational terms such as first and second and the like be used merely to by
One entity or operation are distinguished with another entity or operation, without necessarily requiring or implying these entities or operation
Between there are any actual relationship or orders.Moreover, the terms "include", "comprise" or its any other variant meaning
Covering non-exclusive inclusion, so that the process, method, article or equipment including a series of elements includes not only that
A little elements, but also include other elements that are not explicitly listed, or further include for this process, method, article or
The intrinsic element of equipment.In the absence of more restrictions, the element limited by sentence "including a ...", is not arranged
Except there is also other identical elements in the process, method, article or apparatus that includes the element.
Each embodiment is described by the way of progressive in this specification, the highlights of each of the examples are with other
The difference of embodiment, just to refer each other for identical similar portion between each embodiment.
The foregoing description of the disclosed embodiments enables those skilled in the art to implement or use the present invention.
Various modifications to these embodiments will be apparent to those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, of the invention
It is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein phase one
The widest range caused.
Claims (10)
1. a kind of dispatching method of LTE-A network user, which is characterized in that including：
Establish LTE user lists and LTE-A user lists that current subframe needs descending scheduling；
If current subframe is CSI-RS subframes, the corresponding LTE user of current CSI-RS subframes is calculated in all of LTE-A network
Shared first ratio value and the first average block error rate of LTE user in user；
If when the non-first CSI-RS subframes of current subframe, first ratio value and the corresponding LTE of last CSI-RS subframes
The second of the second ratio value of user and the first average block error rate and the corresponding LTE user of last CSI-RS subframes averagely misses block
Rate；
According to the comparison result and first average block error rate of first ratio value and second ratio value and
The comparison result of two average block error rates is adjusted the transmission cycle of CSI-RS subframes.
2. according to the method described in claim 1, it is characterized in that, the current subframe of establishing needs the LTE of descending scheduling to use
Family list and LTE-A user lists, including：
Obtain all users that current subframe needs descending scheduling；
Judge whether each user is configured with CSI-RS；
If so, using the user as LTE-A user, if otherwise using the user as LTE user；
Establish LET-A user lists and LTE user lists.
3. according to the method described in claim 1, it is characterized in that, described calculate the corresponding LTE user of current CSI-RS subframes
The first average block error rate, including：
Obtain the Block Error Rate of the corresponding each LTE users of current CSI-RS；
The average value for calculating the Block Error Rate of all LTE users obtains first average block error rate.
4. according to the method described in claim 1, it is characterized in that, described according to first ratio value and second ratio
The comparison result of the comparison result of value and first average block error rate and the second average block error rate, to CSI-RS subframes
Transmission cycle be adjusted, including：
If first ratio value is more than second ratio value, and first average block error rate is more than described second averagely accidentally
Block rate then sets the transmission cycle of CSI-RS subframes to 2 times of current value；
If first ratio value is more than second ratio value, and first average block error rate is flat less than or equal to described second
Equal Block Error Rate then keeps the transmission cycle of CSI-RS subframes constant；
If first ratio value is less than second ratio value, and first average block error rate is less than described second averagely accidentally
Block rate then sets the transmission cycle of CSI-RS subframes to the half of current value；
If first ratio value is less than second ratio value, and first average block error rate is more than described second averagely accidentally
The transmission cycle of CSI-RS subframes is then set as 2 times when time value by block rate.
5. according to the method described in claim 1, it is characterized in that, the transmission cycle to CSI-RS subframes is adjusted it
Afterwards, further include：
Determine current subframe type, the first maximum scheduling metrics value and the second maximum scheduling metrics value；Wherein, described first is maximum
Scheduling metrics value is the maximum scheduling metrics value in all LTE users, and the described second maximum scheduling metrics value is all LTE-A
Maximum scheduling metrics value in user；
According to current subframe type, the first maximum scheduling metrics value and the second maximum scheduling metrics value, adjustment LTE user lists and
LTE-A user lists.
6. method according to claim 1 or 5, which is characterized in that the transmission cycle to CSI-RS subframes is adjusted
After whole, further include：
Determine the maximum scheduling number of users of current subframe type and current subframe；
According to the maximum scheduling number of users of current subframe type and current subframe, LTE user lists and LTE-A user's row are adjusted
Table.
7. according to the method described in claim 5, it is characterized in that, the maximum scheduling metrics value of the determination first and the second maximum
Scheduling metrics value, including：
The scheduling metrics value of each LTE user and each LTE-A user are calculated according to preset formula；
It is maximum in all LTE-A users using maximum scheduling metrics value in all LTE users as the first maximum scheduling metrics value
Scheduling metrics value as the second maximum scheduling metrics value；
Wherein, the preset formula is M=QOS/BLER, M=N/BLER or M=N*QOS；
M is scheduling metrics value, N is downlink data amount, BLER is Block Error Rate, QOS is service quality value.
8. a kind of dispatching device of LTE-A network user, which is characterized in that including：
User list creating unit needs the LTE user lists and LTE-A user's row of descending scheduling for establishing current subframe
Table；
If computing unit calculates the corresponding LTE user of current CIS-RS subframes and exists be CSI-RS subframes for current subframe
Shared first ratio value and the first average block error rate of LTE user in all users of LTE-A network；
Comparing unit, if when first CSI-RS subframes non-for current subframe, first ratio value and last CSI-RS
Corresponding the second ratio value of LTE user of subframe and the first average block error rate and the corresponding LTE user's of last CSI-RS subframes
Second average block error rate；
Cycle adjusting unit, for according to the comparison result of first ratio value and second ratio value and described the
The comparison result of one average block error rate and the second average block error rate is adjusted the transmission cycle of CSI-RS subframes.
9. device according to claim 8, which is characterized in that the user list creating unit includes：
User acquires subelement, and all users of descending scheduling are needed for obtaining current subframe；
User type determination subelement, for judging whether each user is configured with CSI-RS, if so, using the user as
LTE-A user, if otherwise using the user as LTE user；
List creating subelement, for establishing LET-A user lists and LTE user lists.
10. device according to claim 8, which is characterized in that the computing unit includes：
First computation subunit, for calculating the corresponding LTE user of current CIS-RS subframes in all users of LTE-A network
Shared first ratio value；
Block Error Rate acquires subelement, the Block Error Rate for obtaining the corresponding each LTE users of current CSI-RS；
Second computation subunit, the average value of the Block Error Rate for calculating all LTE users obtain described first and averagely miss block
Rate.
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