CN109842948A - A kind of enhanced control channel resource allocation method and equipment of the base station 3D-MIMO - Google Patents
A kind of enhanced control channel resource allocation method and equipment of the base station 3D-MIMO Download PDFInfo
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Abstract
The present invention provides the enhanced control channel resource allocation method and equipment of a kind of base station 3D-MIMO.The described method includes:, if judgement knows that ePDCCH resource utilization, PDSCH resource utilization and PDCCH resource utilization rate meet the first preset condition, increasing ePDCCH resource distribution newly when the handling capacity of the base station 3D-MIMO changes；If ePDCCH resource utilization meets the second preset condition, ePDCCH resource distribution is reduced；If ePDCCH resource utilization meets third preset condition, current ePDCCH resource distribution is maintained.The present invention is using the throughput-maximized as target of the base station 3D-MIMO, according to the height of ePDCCH resource utilization, it carries out newly-increased ePDCCH resource and reduces the configuration of ePDCCH resource, realize dynamic configuration ePDCCH resource, be conducive to improve the base station 3D-MIMO utilization rate.
Description
Technical field
The present embodiments relate to fields of communication technology, more particularly, to a kind of enhanced control of base station 3D-MIMO
Channel resource configuration method and equipment.
Background technique
According to 3GPP agreement, each downlink subframe of LTE is divided into control area and data area, such as Fig. 1, wherein control area
1 to 4 OFDM symbol (4 OFDM symbols are occupied when bandwidth is 1.4MHz) is occupied, by PDCCH (Physical Downlink
Control Channel)、PHICH(Physical Hybrid ARQ Indicator Channel)、PCFICH(Physical
Control Format Indicator Channel), RS (Reference Signal) composition.Wherein, PDCCH is used for transmission
The common control informations such as system message, paging message and downlink resource distribute instruction, random access response, uplink power control
The user-specific informations such as system, uplink authorization；PDCCH is carried out by one or more CCE (Control channel element)
Transmission, each CCE include 9 REG (Resource element group), and each REG includes 4 RE (Resource
element).As it can be seen that the channel capacity of PDCCH is fixed due to the limitation of running time-frequency resource.
Consider that control channel capacity such as may be limited at the factors, 3GPP defines a kind of enhanced down control channel
(enhanced PDCCH) occupies PDSCH as control channel, is saved according to 3GPP agreement 36.300-5.1.3, ePDCCH takes
Band user-specific signal (only has user-specific search space), and function is identical as PDCCH, thus expands control channel money
Source.
Currently, large-scale antenna array MIMO technique (Massive Antennas Multiple-Input-
Multiple-output, Massive MIMO) by the existing MIMO technique of extensive antenna extension, thus significantly
Wireless system capacity and reliability are improved, is one of 5G key technology, considers that its extensive antenna expands spatial resolution, industry
Interior also referred to as 3D-MIMO.
3GPP agreement 36.213-7.1, which defines the TM (Transmission mode) that PDSCH is supported, 10 kinds, wherein
TM9, TM10 support the PDSCH transmission number of plies to reach 8 layers, that is, support that its premise of the UE data of parallel transmission 8 is multiple on same a RB
Channel quadrature between UE.3D-MIMO improves beam space resolution ratio, thus more preferable twelve Earthly Branches due to configuring extensive antenna
Multi-layer data parallel transmission is held, to improve its handling capacity.
As described above, the original design intention of the base station 3D-MIMO is to improve single station handling capacity, TM9 that agreement is supported,
TM10 makes PDSCH capacity be highly improved.However, 3GPP agreement lacks the function definition of space division multiplexing for PDCCH, because
This, PDSCH resource redundancy will occur and CCE limited case in some scenes.And for ePDCCH, agreement only proposes to be matched by high level
EPDCCH resource (36.213-9.1.1 section) is set, the resource allocation method of ePDCCH is not provided, therefore, for 3D-
Lack a kind of control channel, the configuration method of traffic channel resource for MIMO；It is especially real in control channel and Traffic Channel
When existing resource sharing, the resource requirement between control channel and Traffic Channel how is balanced, to realize that carrier wave benefit is maximum
Change (throughput-maximized), becomes urgent problem to be solved.
To sum up, the prior art lacks the Dynamic Configuration of a kind of effective control channel resource and traffic channel resource,
It cannot achieve the maximization of 3D-MIMO base station throughput.
Summary of the invention
The embodiment of the present invention provides a kind of 3D-MIMO base for overcoming the above problem or at least being partially solved the above problem
The enhanced control channel resource allocation method and equipment stood.
According to an aspect of an embodiment of the present invention, the enhanced control channel resource for providing a kind of base station 3D-MIMO is matched
Set method, comprising:
When the handling capacity of the base station 3D-MIMO changes, if ePDCCH resource utilization, PDSCH are known in judgement
Resource utilization and PDCCH resource utilization rate meet the first preset condition, then increase ePDCCH resource distribution newly；
If ePDCCH resource utilization meets the second preset condition, ePDCCH resource distribution is reduced.
Other side according to an embodiment of the present invention also provides a kind of enhanced control channel money of base station 3D-MIMO
Source configuration device, including resource increases module and resource reduces module；
Resource increases module, for when the handling capacity of the base station 3D-MIMO changes, if ePDCCH is known in judgement
Resource utilization, PDSCH resource utilization and PDCCH resource utilization rate meet the first preset condition, then increase ePDCCH resource newly
Configuration；
Resource reduces module, if meeting the second preset condition for ePDCCH resource utilization, reduces ePDCCH resource
Configuration.
Other side according to an embodiment of the present invention also provides a kind of enhanced control channel money of base station 3D-MIMO
Source configures equipment, comprising:
At least one processor；And
At least one processor being connect with the processor communication, in which:
The memory is stored with the program instruction that can be executed by the processor, and the processor calls described program to refer to
It enables and is able to carry out the enhanced control channel resource allocation method of the base station 3D-MIMO described in the embodiment of the present invention and its any optional
The method of embodiment.
Other side according to an embodiment of the present invention provides a kind of non-transient computer readable storage medium, feature
It is, the non-transient computer readable storage medium stores computer instruction, and the computer instruction holds the computer
The enhanced control channel resource allocation method of the base station 3D-MIMO described in the row embodiment of the present invention and its any alternative embodiment
Method.
The embodiment of the present invention proposes a kind of enhanced control channel resource allocation method of base station 3D-MIMO, with 3D-MIMO
The throughput-maximized of base station is used as target to make decisions newly-increased ePDCCH resource according to the height of ePDCCH resource utilization
Configuration with ePDCCH resource is reduced, realizes dynamic configuration ePDCCH resource, is conducive to maximize the utilization of the base station 3D-MIMO
Rate.
Detailed description of the invention
Fig. 1 is the control area schematic diagram of prior art LTE subframe；
Fig. 2 is a kind of enhanced control channel resource allocation method flow diagram of base station 3D-MIMO of the embodiment of the present invention；
Fig. 3 is a kind of block schematic illustration of the enhanced control channel resource apparatus of base station 3D-MIMO of the embodiment of the present invention.
Specific embodiment
With reference to the accompanying drawings and examples, specific embodiments of the present invention will be described in further detail.Implement below
Example is not intended to limit the scope of the invention for illustrating the present invention.
As previously mentioned, 3GPP defines a kind of enhanced down control channel ePDCCH, according to 3GPP agreement 36.211-
6.8A.1 section, ePDCCH is by one or more eCCE (enhanced CCE) aggregation transfer, and each eCCE is by multiple eREG
See Table 1 for details, table 2 for (enhanced REG) composition, and (agreement 36.213- is assigned by high-level signaling in the space ePDCCH that UE is searched for
9.1.3 it saves).
The included eREG number of the every eCCE of table 1
The eCCE number that the lower ePDCCH of 2 different-format of table is polymerize
As previously mentioned, 3GPP agreement 36.213-7.1 table 7.1-5 defines the TM (Transmission that PDSCH is supported
Mode) there are 10 kinds, wherein TM9, TM10 support the PDSCH transmission number of plies to reach 8 layers, that is, support parallel transmission 8 on same a RB
UE data, as shown in table 3.
3 PDSCH of table supports transmission mode
According to information above, (most 3 symbols are assigned as controlling under big bandwidth for the existing control channel configuration of 3D-MIMO
Channel, and ePDCCH resource distribution is issued by high level) there are two disadvantages.The first, scene intensive for user easily occurs
CCE or eCCE congestion, leads to throughput degradation.The second, for big packet business accounting high field scape, since ePDCCH is occupied
PDSCH resource, in fact it could happen that control channel resource redundancy, PDSCH inadequate resource, customer flow can not be efficiently absorbed.
The shortcomings that for the above prior art, the embodiment of the present invention propose that a kind of realization 3D-MIMO handling capacity is maximum
The enhanced down control channel resources configuration method changed, this method using the throughput-maximized as target of the base station 3D-MIMO,
It is proposed the parameter and process of the conversion configurations between PDSCH and ePDCCH resource.
Fig. 2 is a kind of enhanced control channel resource allocation method flow diagram of base station 3D-MIMO of the embodiment of the present invention, such as
Shown in Fig. 2, a kind of enhanced control channel resource allocation method of the base station 3D-MIMO, comprising:
S100, when the handling capacity of the base station 3D-MIMO changes, if judgement know ePDCCH resource utilization,
PDSCH resource utilization and PDCCH resource utilization rate meet the first preset condition, then increase ePDCCH resource distribution newly；
S200 reduces ePDCCH resource distribution if ePDCCH resource utilization meets the second preset condition.
The executing subject of the embodiment of the present invention is base station.In order to carry out it is above configure, the embodiment of the present invention is firstly the need of inspection
The handling capacity for surveying the base station 3D-MIMO detects current ePDCCH resource utilization, PDSCH resource utilization and PDCCH resource and utilizes
Rate.The variation of the handling capacity of the base station 3D-MIMO, current ePDCCH resource utilization, PDSCH resource utilization and PDCCH
Resource utilization determines according to testing result.
On this basis, judged according to testing result, it is when meeting certain condition i.e. the first preset condition, i.e., newly-increased
EPDCCH resource distribution.
For reduce ePDCCH resource distribution Rule of judgment only one, i.e., it is pre- to meet second for ePDCCH resource utilization
If condition.
According to the actual conditions that base station configures, first preset condition is that actual needs increases ePDCCH resource distribution
Situation, second preset condition are the situations that actual needs reduces ePDCCH resource distribution.
The embodiment of the present invention proposes a kind of enhanced control channel resource allocation method of base station 3D-MIMO, with 3D-MIMO
The throughput-maximized of base station is used as target to make decisions newly-increased ePDCCH resource according to the height of ePDCCH resource utilization
Configuration with ePDCCH resource is reduced, realizes dynamic configuration ePDCCH resource, is conducive to maximize the utilization of the base station 3D-MIMO
Rate.
Based on the above embodiment, the enhanced control channel resource allocation method of the base station 3D-MIMO further include:
S300, when the handling capacity of the base station 3D-MIMO changes, if to meet third pre- for ePDCCH resource utilization
If condition, then current ePDCCH resource distribution is maintained.
Foregoing examples describe the situation of newly-increased ePDCCH resource and reduction ePDCCH resource, descriptions of the embodiment of the present invention
The situation of the current ePDCCH resource distribution of maintenance, according to the actual conditions that base station configures, the third preset condition is practical
It can maintain the situation of ePDCCH resource distribution.It, can be in existing base no matter the handling capacity of the base station 3D-MIMO increases or decreases
Current ePDCCH resource distribution is maintained on plinth, without carrying out newly-increased ePDCCH resource and reducing the configuration of ePDCCH resource.
There is no successive sequential relationship, described S100, S200 between step S100, S200 and S300 of the embodiment of the present invention
It has been mark action with S300.In general, these three steps can be arbitrarily alternately performed.
In an alternative embodiment, step S100, it is described when the handling capacity of the base station 3D-MIMO changes
When, if judgement knows that ePDCCH resource utilization, PDSCH resource utilization and PDCCH resource utilization rate meet the first default item
Part then increases ePDCCH resource distribution newly, specifically includes:
When the handling capacity of the base station 3D-MIMO increases or decreases, judge whether ePDCCH resource utilization reaches
The ePDCCH thresholding upper limit, PDCCH resource utilization rate whether more than PDCCH thresholding and PDSCH resource utilization whether be more than
PDSCH thresholding；
If judgement knows that ePDCCH resource utilization reaches the ePDCCH thresholding upper limit, PDCCH resource utilization rate is more than PDCCH
Thresholding and PDSCH resource utilization is less than PDSCH thresholding, then increase the ePDCCH resource of several PRB pairs newly.
In the embodiment of the present invention, if the handling capacity of the base station the 3D-MIMO increases or decreases, and ePDCCH resource benefit
Reach the ePDCCH thresholding upper limit with rate, can be described as follows two kinds of situations:
If the handling capacity of the base station 3D-MIMO improves and ePDCCH resource utilization reaches the ePDCCH thresholding upper limit, say
Bright newly-increased eCCE resource effectively absorbs user, and has newly-increased ePDCCH resource requirement, illustrates that eCCE is resource-constrained.
If the handling capacity of the base station 3D-MIMO reduces, and ePDCCH resource utilization reaches the ePDCCH thresholding upper limit, says
Bright eCCE is resource-constrained.
Based on both the above situation, it is also necessary to further judge PDCCH resource utilization rate whether more than PDCCH thresholding with
Whether PDSCH resource utilization more than PDSCH thresholding decides whether to need newly-increased ePDCCh resource.Need newly-increased ePDCCh money
The condition in source are as follows: PDCCH resource utilization rate is more than PDCCH thresholding, and PDSCH resource utilization is less than PDSCH thresholding；When full
The foot condition, that is, increase the ePDCCH resource of several PRB pairs newly；Preferably, the ePDCCH resource of several PRB pairs is 1
The ePDCCH resource of a PRB pair.
Specifically, first preset condition are as follows: ePDCCH resource utilization reaches the ePDCCH thresholding upper limit, PDCCH money
Source utilization rate is more than PDCCH thresholding and PDSCH resource utilization is less than PDSCH thresholding.
Needed before the embodiment of the present invention carries out above-mentioned judgement: the setting ePDCCH thresholding upper limit, ePDCCH thresholding lower limit,
PDCCH thresholding and PDSCH thresholding.
The ePDCCH thresholding upper limit is the attainable maximum value of ePDCCH resource utilization, the ePDCCH thresholding lower limit
For the minimum value that ePDCCH resource utilization must reach, the specific ePDCCH thresholding upper limit and ePDCCH thresholding lower limit can be according to stations
The actual conditions such as point business, equipment are configured, and the embodiment of the present invention is not construed as limiting this.The PDCCH thresholding and PDSCH
Limit, can be configured, the embodiment of the present invention is not construed as limiting this according to actual conditions such as site traffic, equipment
In an alternative embodiment, it is described judge ePDCCH resource utilization whether reach the ePDCCH thresholding upper limit,
PDCCH resource utilization rate whether more than PDCCH thresholding and PDSCH resource utilization whether more than PDSCH thresholding, also wrap before
It includes:
If supporting, the number of users of ePDCCH is 0, closes ePDCCH；Otherwise ePDCCH is opened.
The embodiment of the present invention can be described as, if closing ePDCCH without ePDCCH user, only there is ePDCCH user
When, just open ePDCCH.
Based on the above embodiment, the whether newly-increased ePDCCH resource distribution of the embodiment of the present invention, including first layer judgement and the
Two layers of judgement.
The first layer is adjudicated
If handling capacity improves, ePDCCH utilization rate reaches the thresholding upper limit, illustrates that newly-increased eCCE resource effectively absorbs user, and
There is newly-increased ePDCCH resource requirement, eCCE is limited, then the judgement for whether increasing ePDCCH resource newly is obtained according to second layer judgement.
If handling capacity reduces, ePDCCH utilization rate reaches the thresholding upper limit, illustrates that eCCE is resource-constrained, then sentenced according to the second layer
The judgement for whether increasing ePDCCH resource newly certainly obtained.
The second layer judgement includes the following steps:
(1) if ePDCCH number of users is supported to be greater than 0, ePDCCH is opened, if being not more than 0, closes ePDCCH.
(2) if PDSCH utilization rate is more than thresholding, not newly-increased configuration ePDCCH resource.
(3) if PDCCH utilization rate is more than thresholding (illustrating CCE inadequate resource), and when PDSCH utilization rate is less than thresholding
When, increasing 1 PRB pair of configuration newly is ePDCCH resource.
In an alternative embodiment, step S200, if the ePDCCH resource utilization meets the second preset condition,
EPDCCH resource distribution is then reduced, is specifically included:
If PDCCH utilization rate is lower than ePDCCH thresholding lower limit, the ePDCCH resource of several PRB pairs is reduced.
The embodiment of the present invention is to reduce the judgement of ePDCCH resource, and condition is PDCCH utilization rate lower than under ePDCCH thresholding
Limit；The ePDCCH resource of several PRB pairs is reduced every time；Preferably, the ePDCCH resource of several PRB pairs is 1 PRB
Pair ePDCCH resource.
Specifically, second preset condition are as follows: PDCCH utilization rate is lower than ePDCCH thresholding lower limit.
In an alternative embodiment, step S300, if the handling capacity of the base station the 3D-MIMO change and
EPDCCH resource utilization meets third preset condition, then maintains current ePDCCH resource distribution, specifically include:
If the handling capacity of the base station 3D-MIMO improves and ePDCCH resource utilization is not up to the thresholding upper limit, maintain
Current ePDCCH resource distribution；
If the handling capacity of the base station 3D-MIMO reduces and ePDCCH resource utilization is not below thresholding lower limit, maintain
Current ePDCCH resource distribution；
If the handling capacity of the base station 3D-MIMO reduces and ePDCCH resource utilization is not up to the thresholding upper limit, maintain
Current ePDCCH resource distribution.
The embodiment of the present invention maintains current ePDCCH resource distribution, generally, when ePDCCH resource utilization is between described
When between the ePDCCH thresholding upper limit and the ePDCCH thresholding lower limit, current ePDCCH resource distribution can be maintained；Wherein, if gulping down
The amount of spitting reduces and ePDCCH resource utilization is not up to the thresholding upper limit, illustrates that the reduction of handling capacity is due to user data behavior
Change causes, and non-control channel inadequate resource causes, then maintains ePDCCH resource distribution constant.
Specifically, the third preset condition are as follows: ePDCCH resource utilization is between the ePDCCH thresholding upper limit and institute
It states between ePDCCH thresholding lower limit.
In conclusion the embodiment of the present invention passes through comprehensive shared channel, control channel utilization rate, enhanced control channel benefit
With the detection and judgement of rate and handling capacity, propose a kind of beneficial to the dynamic for realizing the maximized station 3D-MIMO of base station throughput
The method for configuring enhanced control channel resource has the following beneficial effects: compared with prior art
(1) base station 3D-MIMO PDSCH is considered to be easier to become the skill for the bottleneck that capacity is limited with larger capacity, PDCCH
Art feature can occupy the characteristic of PDSCH resource in conjunction with ePDCCH, and propose dynamic configuration by the detection of multiple parameters
EPDCCH resource solves PDSCH and PDCCH resource mismatch problem.
(2) on the basis of increasing or decreasing by handling capacity, whether thresholding is higher or lower than by ePDCCH, PDCCH, PDSCH
Resource distribution judgement is carried out, is conducive to maximize the base station 3D-MIMO utilization rate.
Below according to the enhanced control channel resource allocation method of the base station 3D-MIMO described in the embodiment of the present invention, pass through
Specific data carry out calculated example and illustrate beneficial effect.
With CFI=3, i.e. for PDCCH occupies 3 symbols, taking PHICH group number is 3, removes RS, PHICH, PCFICH institute
RE is accounted for, PDCCH can be (3600-16-12-400)/36=88 (each symbol there are 1200 RE) with CCE number in 1 millisecond, false
If it is 3 that every user's scheduling, which averagely occupies CCE, descending scheduling is only considered, then every millisecond of schedulable number of users is 88/3 ≈ 29.
Assuming that a cell is averaged, downlink throughput capacity is 40Mbps, then every millisecond of downlink throughput capacity is 40Kbps, if every milli
Second averagely scheduling number of users is 15, then every millisecond of every user's user rate is about 40/15 ≈ 2.6Kbps.
Assuming that it is 50% that cell PDSCH average utilization, which is 40%, PDSCH utilization rate thresholding, and PDCCH reaches door
Limit.Assuming that the cell is the intensive scene of user, then it can be ePDCCH by 10%PDSCH resource distribution according to above-mentioned configuration method,
Ignore RE number shared by RS, then can configure 33 eCCE of about 1200/36 ≈ (general CP), if every user scheduling averagely occupies CCE number
It is 3, can must increase ePDCCH resource newly increases the cell scheduling number of users by 33/3=11.
Then every millisecond of cell downlink handling capacity improves are as follows: 2.6Kbps*11=28.6Kbps, i.e., downlink throughput capacity per second
28.6Mbps is improved, i.e., downlink throughput capacity per second is promoted to 68.6Mbps from 40Mbps.
Since the station 3D-MIMO does not have largely now net statistical data (such as average throughput), the example above is calculated not
It considers the following factors:
(1) 3D-MIMO is due to higher wave beam high spatial resolution, in, CCE the or eCCE degree of polymerization of far point user may
It reduces, to reduce the average CCE or eCCE degree of polymerization, therefore more users can be accommodated.
(2) 3D-MIMO is since PDSCH is with larger capacity, in the big packet business of high flow capacity scene, especially high flow capacity
Scene, every customer flow may be higher.
It, can be with reasonable inferences, institute of the embodiment of the present invention if further considering the two factors on the basis of the example above
The actual effect for stating the enhanced control channel resource allocation method of the base station 3D-MIMO can be more preferable.
The embodiment of the present invention also provides a kind of enhanced control channel device for allocating resources of base station 3D-MIMO, including money
Source increases module and resource reduces module；
Resource increases module, for when the handling capacity of the base station 3D-MIMO changes, if ePDCCH is known in judgement
Resource utilization, PDSCH resource utilization and PDCCH resource utilization rate meet the first preset condition, then increase ePDCCH resource newly
Configuration；
Resource reduces module, if meeting the second preset condition for ePDCCH resource utilization, reduces ePDCCH resource
Configuration.
The enhanced control channel device for allocating resources of the base station 3D-MIMO described in the embodiment of the present invention further includes resource dimension
Hold module；
The resource maintenance module, if for ePDCCH resource utilization between the ePDCCH thresholding upper limit with it is described
Between ePDCCH thresholding lower limit, then adjudicates and maintain ePDCCH resource distribution.
The device of the embodiment of the present invention can be used for executing the enhanced control channel resource of the base station 3D-MIMO shown in Fig. 2
The technical solution of configuration method embodiment, it is similar that the realization principle and technical effect are similar, and details are not described herein again.
The frame that Fig. 3 shows the enhanced control channel resource distribution equipment of the base station 3D-MIMO of the embodiment of the present invention shows
It is intended to.Referring to Fig. 3, the equipment, comprising: processor (processor) 601, memory (memory) 602 and bus 603；Its
In, the processor 601 and memory 602 complete mutual communication by the bus 603；
The processor 601 is used to call the program instruction in the memory 602, to execute above-mentioned each method embodiment
Provided method, for example, when the handling capacity of the base station 3D-MIMO changes, if judgement knows that ePDCCH is provided
Source utilization rate, PDSCH resource utilization and PDCCH resource utilization rate meet the first preset condition, then increase ePDCCH resource newly and match
It sets；If ePDCCH resource utilization meets the second preset condition, ePDCCH resource distribution is reduced.
Another embodiment of the present invention discloses a kind of computer program product, and the computer program product is non-including being stored in
Computer program in transitory computer readable storage medium, the computer program include program instruction, when described program refers to
When order is computer-executed, computer is able to carry out method provided by above-mentioned each method embodiment, for example, when described
When the handling capacity of the base station 3D-MIMO changes, if judgement know ePDCCH resource utilization, PDSCH resource utilization and
PDCCH resource utilization rate meets the first preset condition, then increases ePDCCH resource distribution newly；If ePDCCH resource utilization meets the
Two preset conditions then reduce ePDCCH resource distribution.
Another embodiment of the present invention provides a kind of non-transient computer readable storage medium, the non-transient computer is readable
Storage medium stores computer instruction, and the computer instruction executes the computer provided by above-mentioned each method embodiment
Method, for example, when the handling capacity of the base station 3D-MIMO changes, if judgement know ePDCCH resource utilization,
PDSCH resource utilization and PDCCH resource utilization rate meet the first preset condition, then increase ePDCCH resource distribution newly；If
EPDCCH resource utilization meets the second preset condition, then reduces ePDCCH resource distribution.
Those of ordinary skill in the art will appreciate that: realize that above equipment embodiment or embodiment of the method are only schematic
, wherein the processor and the memory can be physically separate component may not be it is physically separated, i.e.,
It can be located in one place, or may be distributed over multiple network units.It can select according to the actual needs therein
Some or all of the modules achieves the purpose of the solution of this embodiment.Those of ordinary skill in the art are not paying creative labor
In the case where dynamic, it can understand and implement.
Through the above description of the embodiments, those skilled in the art can be understood that each embodiment can
It realizes by means of software and necessary general hardware platform, naturally it is also possible to pass through hardware.Based on this understanding, on
Stating technical solution, substantially the part that contributes to existing technology can be embodied in the form of software products in other words, should
Computer software product may be stored in a computer readable storage medium, such as ROM/RAM, magnetic disk, CD, including several fingers
It enables and using so that a computer equipment (can be personal computer, server or the network equipment etc.) executes each implementation
Method described in certain parts of example or embodiment.
Finally, it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although
Present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: it still may be used
To modify the technical solutions described in the foregoing embodiments or equivalent replacement of some of the technical features；
And these are modified or replaceed, technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution spirit and
Range.
Claims (10)
1. a kind of enhanced control channel resource allocation method of base station 3D-MIMO characterized by comprising
When the handling capacity of the base station 3D-MIMO changes, if ePDCCH resource utilization, PDSCH resource are known in judgement
Utilization rate and PDCCH resource utilization rate meet the first preset condition, then increase ePDCCH resource distribution newly；
If ePDCCH resource utilization meets the second preset condition, ePDCCH resource distribution is reduced.
2. the method according to claim 1, wherein further include:
When the handling capacity of the base station 3D-MIMO changes, if ePDCCH resource utilization meets third preset condition,
Maintain current ePDCCH resource distribution.
3. the method according to claim 1, wherein described when the handling capacity of the base station 3D-MIMO becomes
When change, if judgement knows that ePDCCH resource utilization, PDSCH resource utilization and PDCCH resource utilization rate meet first and preset
Condition then increases ePDCCH resource distribution newly, specifically includes:
When the handling capacity of the base station 3D-MIMO increases or decreases, judge whether ePDCCH resource utilization reaches ePDCCH
The thresholding upper limit, PDCCH resource utilization rate whether more than PDCCH thresholding and PDSCH resource utilization whether more than PDSCH
Limit；
If judgement knows that ePDCCH resource utilization reaches the ePDCCH thresholding upper limit, PDCCH resource utilization rate is more than PDCCH thresholding
And PDSCH resource utilization is less than PDSCH thresholding, then increases the ePDCCH resource of several PRB pairs newly.
4. according to the method described in claim 3, it is characterized in that, described judge whether ePDCCH resource utilization reaches
The ePDCCH thresholding upper limit, PDCCH resource utilization rate whether more than PDCCH thresholding and PDSCH resource utilization whether be more than
PDSCH thresholding, before further include:
If supporting, the number of users of ePDCCH is 0, closes ePDCCH；Otherwise ePDCCH is opened.
5. the method according to claim 1, wherein if the ePDCCH resource utilization meets the second default item
Part then reduces ePDCCH resource distribution, specifically includes:
If PDCCH utilization rate is lower than ePDCCH thresholding lower limit, the ePDCCH resource of several PRB pairs is reduced.
6. if according to the method described in claim 2, it is characterized in that, the handling capacity of the base station the 3D-MIMO becomes
Change and ePDCCH resource utilization meet third preset condition, then maintains current ePDCCH resource distribution, specifically include:
If the handling capacity of the base station 3D-MIMO improves and ePDCCH resource utilization is not up to the thresholding upper limit, remain current
EPDCCH resource distribution；
If the handling capacity of the base station 3D-MIMO reduces and ePDCCH resource utilization is not below thresholding lower limit, remain current
EPDCCH resource distribution；
If the handling capacity of the base station 3D-MIMO reduces and ePDCCH resource utilization is not up to the thresholding upper limit, remain current
EPDCCH resource distribution.
7. the method according to claim 3 or 5, which is characterized in that the ePDCCH resource of several PRB pairs, specifically
Are as follows: the ePDCCH resource of 1 PRB pair.
8. a kind of enhanced control channel device for allocating resources of base station 3D-MIMO, which is characterized in that increase module including resource
Module is reduced with resource；
Resource increases module, for when the handling capacity of the base station 3D-MIMO changes, if ePDCCH resource is known in judgement
Utilization rate, PDSCH resource utilization and PDCCH resource utilization rate meet the first preset condition, then increase ePDCCH resource distribution newly；
Resource reduces module, if meeting the second preset condition for ePDCCH resource utilization, reduces ePDCCH resource distribution.
9. a kind of enhanced control channel resource distribution equipment of base station 3D-MIMO characterized by comprising
At least one processor；And
At least one processor being connect with the processor communication, in which:
The memory is stored with the program instruction that can be executed by the processor, and the processor calls described program to instruct energy
Enough methods executed as described in claim 1 to 7 is any.
10. a kind of non-transient computer readable storage medium, which is characterized in that the non-transient computer readable storage medium is deposited
Computer instruction is stored up, the computer instruction makes the computer execute the method as described in claim 1 to 7 is any.
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