CN105744623A - Super-cell SDMA (Spatial Division Multiple Access) method and base station - Google Patents
Super-cell SDMA (Spatial Division Multiple Access) method and base station Download PDFInfo
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- CN105744623A CN105744623A CN201410749381.3A CN201410749381A CN105744623A CN 105744623 A CN105744623 A CN 105744623A CN 201410749381 A CN201410749381 A CN 201410749381A CN 105744623 A CN105744623 A CN 105744623A
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- H04W72/04—Wireless resource allocation
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Abstract
The invention discloses a super-cell SDMA (Spatial Division Multiple Access) method, and the method comprises the steps: firstly obtaining a CP excitation set of each user which is not dispatched; secondly determining the users with no intersection between the CP excitation sets of the users which are not dispatched as the SDMA users; and finally distributing the same time frequency resource or different time frequency resources to the SDMA users. The invention also discloses a super-cell SDMA base station. The method provided by the invention improves the SDMA probability and resource distribution flexibility.
Description
Technical field
The present invention relates to moving communicating field, particularly relate to the space division multiple access method under super cell and base station thereof.
Background technology
Along with the continuous evolution of communication technology, LTE (LongTermEvolution, Long Term Evolution) system is widely studied and is progressively applied to commercial network.LTE system is with OFDM (OrthogonalFrequencyDivisionMultiplexing, OFDM) and MIMO (Multiple-InputMultipleOutput, multiple-input and multiple-output) etc. based on core technology, provide the user higher data transmission rate, less propagation delay time and more excellent service quality.Super cell (Super-Cell) is a kind of community form in LTE system, and each super cell is made up of multiple CP (Cell-Portion, sub cell unit).Each CP shares the resource of super cell, and including cell ID (CellID), time-domain resource, frequency domain resource etc., multiple CP can the signal of the same user of Combined Treatment.
SDMA (SpatialDivisionMultiplexAccess under a kind of super cell of the prior art, space division multiple access accesses) method, by measuring homophony user and disturbing from calling the mutual of family, only homophony user with from when calling the mutually interference at family less than certain threshold value, just can carry out space division multiple access access, meet the homophony user of this condition and not high from the matching rate calling family, therefore user can to carry out the probability of space division multiple access access low.And homophony user and must tie up identical running time-frequency resource from calling family in existing SDMA method, limits the motility of resource distribution.
Summary of the invention
Present invention is primarily targeted at the space division multiple access method under a kind of super cell of offer and base station thereof, it is intended to solve the space division multiple access method under existing super cell and carry out the technical problem that space division multiple access access probability is low, flexibility of resource allocation is low.
For achieving the above object, the invention provides the space division multiple access method under a kind of super cell, the space division multiple access method under described super cell comprises the following steps:
The CP obtaining each unscheduled user activates collection；
The unscheduled user that CP between unscheduled user activates collection not common factor is defined as space division multiple access access user；
Described space division multiple access is accessed user and distributes identical running time-frequency resource or different running time-frequency resources.
Preferably, the step of the CP activation collection of each unscheduled user of described acquisition includes:
Obtain the CP that unscheduled user is corresponding；
Obtain the signal parameter value of this unscheduled user on each CP；
If the signal parameter value of this unscheduled user is more than preset signals parameter threshold level on each CP, it is determined that this CP is the activation CP of this unscheduled user；
The set activating CP of this unscheduled user determined is collected as the CP activation of this unscheduled user.
Preferably, the step of the CP activation collection of each unscheduled user of described acquisition includes:
Obtain the CP that unscheduled user is corresponding；
Obtain the signal parameter value of this unscheduled user on each CP；
Obtain the CP that on the CP that unscheduled user is corresponding, the signal parameter value of this unscheduled user is maximum；
The signal parameter value of this unscheduled user and the difference of the signal parameter value of this unscheduled user on other CP on the CP that signal calculated parameter value is maximum；
If described difference is less than preset signals parameter difference threshold value, it is determined that this CP is the activation CP of this unscheduled user；
The set activating CP of this unscheduled user determined is collected as the CP activation of this unscheduled user.
Preferably, also include after the described step that the unscheduled user that CP activation collection between unscheduled user does not occur simultaneously is defined as space division multiple access access user:
Estimate the CP between described unscheduled user and activate the handling capacity before collection does not have the unscheduled user occured simultaneously to carry out after space division multiple access and carry out space division multiple access；
CP between unscheduled user is activated the handling capacity after carrying out space division multiple access in the unscheduled user that collection does not occur simultaneously and is defined as new space division multiple access access user more than the unscheduled user of the handling capacity before carrying out space division multiple access；
The described step that described space division multiple access access user distributes identical running time-frequency resource or different running time-frequency resources replaces with:
Described new space division multiple access is accessed user and distributes identical running time-frequency resource or different running time-frequency resources.
Preferably, also include after the described step that the unscheduled user that CP activation collection between unscheduled user does not occur simultaneously is defined as space division multiple access access user:
CP between unscheduled user is activated the unscheduled user that collection does not occur simultaneously, is ranked up according to dispatching priority；
Successively the unscheduled user coming foremost is defined as new space division multiple access and accesses user, until determined new space division multiple access accesses the space division multiple access access customer number order that user reaches to allow；
The described step that described space division multiple access access user distributes identical running time-frequency resource or different running time-frequency resources replaces with:
Described new space division multiple access is accessed user and distributes identical running time-frequency resource or different running time-frequency resources.
Preferably, the handling capacity after carrying out space division multiple access in the described unscheduled user that CP between unscheduled user activates collection not common factor also includes after being defined as the step of new space division multiple access access user more than the unscheduled user of the handling capacity before carrying out space division multiple access:
Determined new space division multiple access is accessed user, is ranked up according to dispatching priority；
Successively the unscheduled user coming foremost is defined as final space division multiple access and accesses user, until determined final space division multiple access accesses the space division multiple access access customer number order that user reaches to allow；
The described step distributing identical running time-frequency resource or different running time-frequency resources to described new space division multiple access access user replaces with:
Described final space division multiple access is accessed user and distributes identical running time-frequency resource or different running time-frequency resources.
Additionally, for achieving the above object, the present invention also provides for the base station that the space division multiple access under a kind of super cell accesses, and the base station that the space division multiple access under described super cell accesses includes:
CP activates collection acquisition module, and the CP for obtaining each unscheduled user activates collection；
Space division multiple access accesses user and determines module, and the unscheduled user not occured simultaneously for the CP between unscheduled user activates collection is defined as space division multiple access and accesses user；
Resource distribution module, distributes identical running time-frequency resource or different running time-frequency resources for described space division multiple access is accessed user.
Preferably, described CP activation collection acquisition module includes:
Signal parameter acquiring unit, for obtaining the CP that unscheduled user is corresponding, obtains the signal parameter value of this unscheduled user on each CP；
Activate CP and determine unit, if the signal parameter value of this unscheduled user is more than preset signals parameter threshold level on each CP, it is determined that this CP is the activation CP of this unscheduled user；
CP activates collection and determines unit, for the CP as this unscheduled user that gathers activating CP of this unscheduled user determined is activated collection.
Preferably, described CP activation collection acquisition module includes:
Signal parameter acquiring unit, for obtaining the CP that unscheduled user is corresponding, obtains the signal parameter value of this unscheduled user on each CP；
Activate CP and determine unit, for obtaining the CP that on the CP that unscheduled user is corresponding, the signal parameter value of this unscheduled user is maximum；The signal parameter value of this unscheduled user and the difference of the signal parameter value of this unscheduled user on other CP on the CP that signal calculated parameter value is maximum；If described difference is less than preset signals parameter difference threshold value, it is determined that this CP is the activation CP of this unscheduled user；
CP activates collection and determines unit, for the CP as this unscheduled user that gathers activating CP of this unscheduled user determined is activated collection.
Preferably, described space division multiple access access user determines that module is additionally operable to:
Estimate the CP between described unscheduled user and activate the handling capacity before collection does not have the unscheduled user occured simultaneously to carry out after space division multiple access and carry out space division multiple access；
CP between unscheduled user is activated the handling capacity after carrying out space division multiple access in the unscheduled user that collection does not occur simultaneously and is defined as new space division multiple access access user more than the unscheduled user of the handling capacity before carrying out space division multiple access；
Described resource distribution module is used for:
Described new space division multiple access is accessed user and distributes identical running time-frequency resource or different running time-frequency resources.
Preferably, described space division multiple access access user determines that module is additionally operable to:
CP between unscheduled user is activated the unscheduled user that collection does not occur simultaneously, is ranked up according to dispatching priority；
Successively the unscheduled user coming foremost is defined as new space division multiple access and accesses user, until determined new space division multiple access accesses the space division multiple access access customer number order that user reaches to allow；
Described resource distribution module is used for:
Described new space division multiple access is accessed user and distributes identical running time-frequency resource or different running time-frequency resources.
Preferably, described space division multiple access access user determines that module is additionally operable to:
Determined new space division multiple access is accessed user, is ranked up according to dispatching priority；
Successively the unscheduled user coming foremost is defined as final space division multiple access and accesses user, until determined final space division multiple access accesses the space division multiple access access customer number order that user reaches to allow；
Described resource distribution module is used for:
Described final space division multiple access is accessed user and distributes identical running time-frequency resource or different running time-frequency resources.
The present invention activates collection by obtaining the CP of each unscheduled user, the unscheduled user that then CP between unscheduled user activates collection not common factor is defined as space division multiple access access user, again described space division multiple access is accessed user and distribute identical running time-frequency resource or different running time-frequency resources, improve the probability carrying out space division multiple access access under super cell and the motility of resource distribution.
Accompanying drawing explanation
Fig. 1 is the schematic flow sheet of the space division multiple access method first embodiment under super cell of the present invention；
Fig. 2 is the refinement schematic flow sheet of the first embodiment of the CP activation collection step obtaining each unscheduled user in Fig. 1；
Fig. 3 is the refinement schematic flow sheet of the second embodiment of the CP activation collection step obtaining each unscheduled user in Fig. 1；
Fig. 4 is the refinement schematic flow sheet of the 3rd embodiment of the CP activation collection step obtaining each unscheduled user in Fig. 1；
Fig. 5 is the schematic flow sheet of space division multiple access method the second embodiment under super cell of the present invention；
Fig. 6 is the schematic flow sheet of space division multiple access method the 3rd embodiment under super cell of the present invention；
Fig. 7 is the schematic flow sheet of space division multiple access method the 4th embodiment under super cell of the present invention；
Fig. 8 is the high-level schematic functional block diagram of the base station that the space division multiple access under super cell of the present invention accesses.
The realization of the object of the invention, functional characteristics and advantage will in conjunction with the embodiments, are described further with reference to accompanying drawing.
Detailed description of the invention
Should be appreciated that specific embodiment described herein is only in order to explain the present invention, is not intended to limit the present invention.
The present invention provides the space division multiple access method under a kind of super cell.
With reference to the schematic flow sheet that Fig. 1, Fig. 1 are the space division multiple access method first embodiment under super cell of the present invention.
In the first embodiment, the space division multiple access method under this super cell comprises the following steps:
Step S11, the CP obtaining each unscheduled user activates collection；
Concrete, for the unscheduled user of each under super cell, base station obtains all CP that this unscheduled user is corresponding.The signal value of this unscheduled user received on all CP that this unscheduled user is corresponding is discrepant, in all CP that this unscheduled user is corresponding, the performance that some CP and this unscheduled user communicate is high, and performance that some CP and this unscheduled user communicate is low, the CP high with the performance that this unscheduled user communicates is judged to the activation CP of this unscheduled user；Otherwise then it is judged to the inactive CP of this unscheduled user.The set activating CP of this unscheduled user determined is collected as the CP activation of this unscheduled user.
Step S12, the unscheduled user that the CP between unscheduled user activates collection not common factor is defined as space division multiple access access user；
The CP that can be obtained each unscheduled user under super cell by step S11 activates collection, the CP activation collection of each unscheduled user is compared, the unscheduled user that CP activation collection between unscheduled user does not occur simultaneously is defined as space division multiple access access user.
Step S13, accesses user to described space division multiple access and distributes identical running time-frequency resource or different running time-frequency resources.
After determining space division multiple access access user by step S12, each space division multiple access is accessed user and distributes identical running time-frequency resource or different running time-frequency resources.Wherein, space division multiple access accesses the demodulated reference signal sequence of user and meets certain orthogonality, so that base station can be distinguished different space division multiple access and access user, and the data that each space division multiple access accesses user are demodulated.
Space division multiple access method under the super cell that the present embodiment provides, first the CP obtaining each unscheduled user activates collection, then the unscheduled user that the CP activation collection between unscheduled user does not occur simultaneously is defined as space division multiple access and accesses user, then distribute identical running time-frequency resource or different running time-frequency resources to described space division multiple access access user.Space division multiple access method under super cell disclosed in the present embodiment, it is possible to improve the probability carrying out space division multiple access access and the motility of resource distribution.
Further, as in figure 2 it is shown, above-mentioned steps S11 includes:
Step S1111, obtains the CP that unscheduled user is corresponding, obtains the signal parameter value of this unscheduled user on each CP；
For the unscheduled user of each under super cell, all CP that this unscheduled user is corresponding receiving the signal of this unscheduled user, the signal of this unscheduled user received includes the signal parameters such as the SINR after signal quality, SINR, interference elimination.Base station obtain all CP corresponding to this unscheduled user and on each CP the signal parameter value of this unscheduled user.In the present embodiment, base station obtains the SINR (SignaltoInterferenceplusNoiseRatio, Signal to Interference plus Noise Ratio) of this unscheduled user on each CP that this unscheduled user is corresponding.In other embodiments, base station can also obtain at least one signal parameter in the signal parameters such as the SINR after the signal quality of this unscheduled user on each CP that this unscheduled user is corresponding, SINR, interference elimination.
Step S1112, if the signal parameter value of this unscheduled user is more than preset signals parameter threshold level on each CP, it is determined that this CP is the activation CP of this unscheduled user；
In the present embodiment, the SINR value of this unscheduled user and default SINR threshold value on each CP corresponding for this unscheduled user obtained are compared, if the SINR value of CP this unscheduled user upper is more than default SINR threshold value, it is determined that this CP is the activation CP of this unscheduled user；If the SINR value of CP this unscheduled user upper is less than or equal to default SINR threshold value, it is determined that this CP is the inactive CP of this unscheduled user.Preset SINR threshold value to arrange flexibly according to practical situation.
Step S1113, collects the set activating CP of this unscheduled user determined as the CP activation of this unscheduled user.
Be may determine that the activation CP of this unscheduled user in the CP that under super cell, each unscheduled user is corresponding by step S1112, the set activating CP of this unscheduled user determined is collected as the CP activation of this unscheduled user.
Further, as it is shown on figure 3, above-mentioned steps S11 includes:
Step S1121, obtains the CP that unscheduled user is corresponding, obtains the signal parameter value of this unscheduled user on each CP；
Specifically, base station obtain all CP corresponding to unscheduled user and on each CP the step of the signal parameter value of this unscheduled user can refer to described in above-mentioned steps S1111, just repeat no more at this.
Step S1122, obtains the CP that on the CP that unscheduled user is corresponding, the signal parameter value of this unscheduled user is maximum；
The SINR value of this unscheduled user on each unscheduled user corresponding all CP and each CP is got according to step S1121, the SINR value of this unscheduled user on all CP corresponding for the unscheduled user obtained is compared, it is determined that get the CP that on all CP that this unscheduled user is corresponding, the SINR value of this unscheduled user is maximum.
Step S1123, the signal parameter value of this unscheduled user and the difference of the signal parameter value of this unscheduled user on other CP on the CP that signal calculated parameter value is maximum, if described difference is less than preset signals parameter difference threshold value, it is determined that this CP is the activation CP of this unscheduled user；
Calculate the SINR value of this unscheduled user and the difference of the SINR value of this unscheduled user on other CP on the CP that this SINR value is maximum, if described difference is less than default SINR difference limen value, it is determined that this CP is the activation CP of this unscheduled user；If described difference is more than or equal to default SINR difference limen value, it is determined that this CP is the inactive CP of this unscheduled user.Preset SINR difference limen value to arrange flexibly according to practical situation.
Step S1124, collects the set activating CP of this unscheduled user determined as the CP activation of this unscheduled user.
Specifically, the step gathering the CP activation collection as this unscheduled user activating CP of this unscheduled user determined be can refer to described in above-mentioned steps S1113, just repeat no more at this.
Further, as shown in Figure 4, above-mentioned steps S11 includes:
Step S1131, obtains the CP that unscheduled user is corresponding, obtains the signal parameter value of this unscheduled user on each CP；
Specifically, base station obtain all CP corresponding to unscheduled user and on each CP the step of the signal parameter value of this unscheduled user can refer to described in above-mentioned steps S1111, just repeat no more at this.
Step S1132, obtains the CP that on the CP that unscheduled user is corresponding, the signal parameter value of this unscheduled user is maximum；
Specifically, obtain the step of the CP that the signal parameter value of this unscheduled user is maximum on the CP that unscheduled user is corresponding and can refer to described in above-mentioned steps S1122, just repeat no more at this.
Step S1133, the signal parameter value of this unscheduled user and the difference of the signal parameter value of this unscheduled user on other CP on the CP that signal calculated parameter value is maximum, if described difference is less than preset signals parameter difference threshold value, and on described CP the signal parameter value of this unscheduled user more than preset signals parameter threshold level, it is determined that this CP is the activation CP of this unscheduled user；
The CP that on the CP that unscheduled user is corresponding, the SINR value of this unscheduled user is maximum is got according to step S1132, calculate the SINR value of this unscheduled user and the difference of the SINR value of this unscheduled user on other CP on the CP that this SINR value is maximum, if described difference is less than default SINR difference limen value, and on described CP the SINR value of this unscheduled user more than default SINR threshold value, it is determined that this CP is the activation CP of this unscheduled user；Otherwise, it determines the inactive CP that this CP is this unscheduled user.Preset SINR threshold value and default SINR difference limen value can be arranged flexibly according to practical situation.
Step S1134, collects the set activating CP of this unscheduled user determined as the CP activation of this unscheduled user.
Specifically, the step gathering the CP activation collection as this unscheduled user activating CP of this unscheduled user determined be can refer to described in above-mentioned steps S1113, just repeat no more at this.
Further, with reference to the schematic flow sheet that Fig. 5, Fig. 5 are space division multiple access method the second embodiment under super cell of the present invention.
Executing in example second, the space division multiple access method under this super cell comprises the following steps:
Step S21, the CP obtaining each unscheduled user activates collection；
Specifically, obtain the CP of each unscheduled user and activate the step of collection and can refer to described in the step S11 of first embodiment, just repeat no more at this.
Step S22, the unscheduled user that the CP between unscheduled user activates collection not common factor is defined as space division multiple access access user；
Specifically, the CP between unscheduled user activates collection does not have the step that the unscheduled user occured simultaneously is defined as space division multiple access access user to can refer to described in the step S12 of first embodiment, just repeats no more at this.
Step S23, estimates the CP between described unscheduled user and activates the handling capacity before collection does not have the unscheduled user occured simultaneously to carry out after space division multiple access and carry out space division multiple access；
Determine that the CP between unscheduled user activates according to step S22 and integrate the unscheduled user not occured simultaneously as space division multiple access access user, then calculate the handling capacity before determined space division multiple access accesses the handling capacity after user carries out space division multiple access and carries out space division multiple access.The calculating of the handling capacity before space division multiple access accessing the handling capacity after user carries out space division multiple access and carrying out space division multiple access, has had very ripe algorithm, has not just been explained in detail here in prior art.
Step S24, activates the CP between unscheduled user the handling capacity after carrying out space division multiple access in the unscheduled user that collection does not occur simultaneously and is defined as new space division multiple access access user more than the unscheduled user of the handling capacity before carrying out space division multiple access；
The determined space division multiple access that calculates in comparison step S23 access the handling capacity after user carries out space division multiple access and carry out space division multiple access before the size of handling capacity, determined space division multiple access is accessed the handling capacity after carrying out space division multiple access in user and is defined as new space division multiple access more than the unscheduled user of the handling capacity before carrying out space division multiple access and accesses user.
Step S25, accesses user to described new space division multiple access and distributes identical running time-frequency resource or different running time-frequency resources.
Specifically, the step distributing identical running time-frequency resource or different running time-frequency resources to described new space division multiple access access user can refer to described in the step S13 of first embodiment, just repeats no more at this.
Space division multiple access method under the super cell that the present embodiment provides, the CP first obtaining each unscheduled user activates collection；The unscheduled user that then CP between unscheduled user activates collection not common factor is defined as space division multiple access access user, estimate the CP between described unscheduled user and activate the handling capacity before collection does not have the unscheduled user of common factor to carry out after space division multiple access and carry out space division multiple access, the CP between unscheduled user is activated the handling capacity after carrying out space division multiple access in the unscheduled user of collection not common factor and is defined as new space division multiple access access user more than the unscheduled user of the handling capacity before carrying out space division multiple access；Again described new space division multiple access is accessed user and distribute identical running time-frequency resource or different running time-frequency resources.Space division multiple access method under super cell disclosed in the present embodiment, it is possible to improve the probability carrying out space division multiple access access and the motility of resource distribution.
Further, with reference to the schematic flow sheet that Fig. 6, Fig. 6 are space division multiple access method the 3rd embodiment under super cell of the present invention.
Executing in example the 3rd, the space division multiple access method under this super cell comprises the following steps:
Step S31, the CP obtaining each unscheduled user activates collection；
Specifically, obtain the CP of each unscheduled user and activate the step of collection and can refer to described in the step S11 of first embodiment, just repeat no more at this.
Step S32, the unscheduled user that the CP between unscheduled user activates collection not common factor is defined as space division multiple access access user；
Specifically, the CP between unscheduled user activates collection does not have the step that the unscheduled user occured simultaneously is defined as space division multiple access access user to can refer to described in the step S12 of first embodiment, just repeats no more at this.
Step S33, activates, by the CP between unscheduled user, the unscheduled user that collection does not occur simultaneously, is ranked up according to dispatching priority；
Calculate the CP between each unscheduled user and activate the dispatching priority of the unscheduled user that collection does not occur simultaneously, and be ranked up from high to low according to dispatching priority.Calculating to dispatching priority, has had very ripe algorithm in prior art.Such as, the dispatching priority of terminal is determined according to the transfer rate that channel quality indicates and terminal is actual of terminal to report in base station, or the Normalized throughput according to user terminal calculates dispatching priority etc., the calculating for dispatching priority is not just explained in detail here.
Step S34, is defined as the unscheduled user coming foremost new space division multiple access successively and accesses user, until determined new space division multiple access accesses the space division multiple access access customer number order that user reaches to allow；
Assume that the CP between the step S33 unscheduled user calculated activates the dispatching priority of the unscheduled user that collection does not occur simultaneously and is: user 1 > user 2 > user 3 > ..., CP between unscheduled user after sequence activates the order of the unscheduled user that collection does not occur simultaneously: user 1, user 2, user 3......, the user 1 of foremost will be come successively, user 2, user 3...... is defined as new space division multiple access and accesses user, until determined new space division multiple access accesses the space division multiple access access customer number order that user reaches to allow.The space division multiple access access customer number order allowed can carry out flexible configuration according to system processing power.
Step S35, accesses user to described new space division multiple access and distributes identical running time-frequency resource or different running time-frequency resources.
Specifically, the step distributing identical running time-frequency resource or different running time-frequency resources to described new space division multiple access access user can refer to described in the step S13 of first embodiment, just repeats no more at this.
Space division multiple access method under the super cell that the present embodiment provides, the CP first obtaining each unscheduled user activates collection；The unscheduled user that then CP between unscheduled user activates collection not common factor is defined as space division multiple access access user, CP between unscheduled user is activated the unscheduled user that collection does not occur simultaneously, it is ranked up according to dispatching priority, successively the unscheduled user coming foremost is defined as new space division multiple access and accesses user, until determined new space division multiple access accesses the space division multiple access access customer number order that user reaches to allow；Again described new space division multiple access is accessed user and distribute identical running time-frequency resource or different running time-frequency resources.Space division multiple access method under super cell disclosed in the present embodiment, it is possible to improve the probability carrying out space division multiple access access and the motility of resource distribution.
Further, with reference to the schematic flow sheet that Fig. 7, Fig. 7 are space division multiple access method the 4th embodiment under super cell of the present invention.
Executing in example the 4th, the space division multiple access method under this super cell comprises the following steps:
Step S41, the CP obtaining each unscheduled user activates collection；
Specifically, obtain the CP of each unscheduled user and activate the step of collection and can refer to described in the step S11 of first embodiment, just repeat no more at this.
Step S42, the unscheduled user that the CP between unscheduled user activates collection not common factor is defined as space division multiple access access user；
Specifically, the CP between unscheduled user activates collection does not have the step that the unscheduled user occured simultaneously is defined as space division multiple access access user to can refer to described in the step S12 of first embodiment, just repeats no more at this.
Step S43, estimates the CP between described unscheduled user and activates the handling capacity before collection does not have the unscheduled user occured simultaneously to carry out after space division multiple access and carry out space division multiple access；
Specifically, the step of the handling capacity before estimating after the activation collection of the CP between described unscheduled user does not have the unscheduled user occured simultaneously to carry out space division multiple access and carrying out space division multiple access can refer to described in the step S23 of the second embodiment, just repeats no more at this.
Step S44, activates the CP between unscheduled user the handling capacity after carrying out space division multiple access in the unscheduled user that collection does not occur simultaneously and is defined as new space division multiple access access user more than the unscheduled user of the handling capacity before carrying out space division multiple access；
Specifically, CP between unscheduled user activates the handling capacity after carrying out space division multiple access in the unscheduled user that collection does not occur simultaneously be defined as new space division multiple access more than the unscheduled user of the handling capacity before carrying out space division multiple access and access the step of user and can refer to described in the step S24 of the second embodiment, just repeat no more at this.
Step S45, accesses user by determined new space division multiple access, is ranked up according to dispatching priority；
Calculate each determined new space division multiple access and access the dispatching priority of user, and be ranked up from high to low according to dispatching priority.Specifically, determined new space division multiple access being accessed user, the step being ranked up according to dispatching priority can refer to described in the step S33 of the 3rd embodiment, just repeats no more at this.
Step S46, is defined as the unscheduled user coming foremost final space division multiple access successively and accesses user, until determined final space division multiple access accesses the space division multiple access access customer number order that user reaches to allow；
Specifically, successively the unscheduled user coming foremost is defined as final space division multiple access and accesses user, until the space division multiple access access customer number purpose step that determined final space division multiple access access user reaches to allow can refer to described in the step S34 of the 3rd embodiment, just repeat no more at this.
Step S47, accesses user to described final space division multiple access and distributes identical running time-frequency resource or different running time-frequency resources.
Specifically, the step distributing identical running time-frequency resource or different running time-frequency resources to described final space division multiple access access user can refer to described in the step S13 of first embodiment, just repeats no more at this.
Space division multiple access method under the super cell that the present embodiment provides, the CP first obtaining each unscheduled user activates collection；The unscheduled user that then CP between unscheduled user activates collection not common factor is defined as space division multiple access access user, estimate the CP between described unscheduled user and activate the handling capacity before collection does not have the unscheduled user occured simultaneously to carry out after space division multiple access and carry out space division multiple access, CP between unscheduled user is activated the handling capacity after carrying out space division multiple access in the unscheduled user that collection does not occur simultaneously and is defined as new space division multiple access access user more than the unscheduled user of the handling capacity before carrying out space division multiple access, determined new space division multiple access is accessed user, it is ranked up according to dispatching priority, successively the unscheduled user coming foremost is defined as final space division multiple access and accesses user, until determined final space division multiple access accesses the space division multiple access access customer number order that user reaches to allow；Again described new space division multiple access is accessed user and distribute identical running time-frequency resource or different running time-frequency resources.Space division multiple access method under super cell disclosed in the present embodiment, it is possible to improve the probability carrying out space division multiple access access and the motility of resource distribution.
The present invention further provides the base station that the space division multiple access under a kind of super cell accesses.With reference to the high-level schematic functional block diagram that Fig. 8, Fig. 8 are the base station that the space division multiple access under super cell of the present invention accesses.The base station that space division multiple access under this super cell accesses includes:
CP activates collection acquisition module 10, and the CP for obtaining each unscheduled user activates collection；
Space division multiple access accesses user and determines module 20, and the unscheduled user not occured simultaneously for the CP between unscheduled user activates collection is defined as space division multiple access and accesses user；
Resource distribution module 30, distributes identical running time-frequency resource or different running time-frequency resources for described space division multiple access is accessed user.
After CP activates the CP activation collection that collection acquisition module 10 obtains each unscheduled user, space division multiple access accesses user and determines that the unscheduled user that the CP activation collection between unscheduled user does not occur simultaneously is defined as space division multiple access and accesses user by module 20, and then described space division multiple access access user is distributed identical running time-frequency resource or different running time-frequency resources by resource distribution module 30.
Specifically, in the base station that the space division multiple access under above-mentioned super cell accesses, CP activates collection acquisition module 10 and includes:
Signal parameter acquiring unit 101, for obtaining the CP that unscheduled user is corresponding, obtains the signal parameter value of this unscheduled user on each CP；
Activate CP and determine unit 102, if the signal parameter value of this unscheduled user is more than preset signals parameter threshold level on each CP, it is determined that this CP is the activation CP of this unscheduled user；
CP activates collection and determines unit 103, for the CP as this unscheduled user that gathers activating CP of this unscheduled user determined is activated collection.
Further, activate CP and determine that unit 102 is additionally operable to:
Obtain the CP that on the CP that unscheduled user is corresponding, the signal parameter value of this unscheduled user is maximum；The signal parameter value of this unscheduled user and the difference of the signal parameter value of this unscheduled user on other CP on the CP that signal calculated parameter value is maximum；If described difference is less than preset signals parameter difference threshold value, it is determined that this CP is the activation CP of this unscheduled user.
Further, activate CP and determine that unit 102 is additionally operable to:
Obtain the CP that on the CP that unscheduled user is corresponding, the signal parameter value of this unscheduled user is maximum；The signal parameter value of this unscheduled user and the difference of the signal parameter value of this unscheduled user on other CP on the CP that signal calculated parameter value is maximum, if described difference is less than preset signals parameter difference threshold value, and on described CP the signal parameter value of this unscheduled user more than preset signals parameter threshold level, it is determined that this CP is the activation CP of this unscheduled user.
Further, space division multiple access access user determines that module 20 is additionally operable to: the CP estimating between described unscheduled user activates the handling capacity before collection does not have the unscheduled user occured simultaneously to carry out after space division multiple access and carry out space division multiple access；
CP between unscheduled user is activated the handling capacity after carrying out space division multiple access in the unscheduled user that collection does not occur simultaneously and is defined as new space division multiple access access user more than the unscheduled user of the handling capacity before carrying out space division multiple access；
Resource distribution module 30 is used for: described new space division multiple access is accessed user and distributes identical running time-frequency resource or different running time-frequency resources.
Further, space division multiple access accesses user and determines that module 20 is additionally operable to: the CP between unscheduled user activates the unscheduled user of collection not common factor, is ranked up according to dispatching priority；
Successively the unscheduled user coming foremost is defined as new space division multiple access and accesses user, until determined new space division multiple access accesses the space division multiple access access customer number order that user reaches to allow；
Resource distribution module 30 is used for: described new space division multiple access is accessed user and distributes identical running time-frequency resource or different running time-frequency resources.
Further, space division multiple access access user determines that module 20 is additionally operable to: the CP estimating between described unscheduled user activates the handling capacity before collection does not have the unscheduled user occured simultaneously to carry out after space division multiple access and carry out space division multiple access；
CP between unscheduled user is activated the handling capacity after carrying out space division multiple access in the unscheduled user that collection does not occur simultaneously and is defined as new space division multiple access access user more than the unscheduled user of the handling capacity before carrying out space division multiple access；
Determined new space division multiple access is accessed user, is ranked up according to dispatching priority；
Successively the unscheduled user coming foremost is defined as final space division multiple access and accesses user, until determined final space division multiple access accesses the space division multiple access access customer number order that user reaches to allow；
Resource distribution module 30 is used for: described final space division multiple access is accessed user and distributes identical running time-frequency resource or different running time-frequency resources.
The specific works process of above-mentioned each functional module can refer to described in previous methods embodiment, just repeats no more at this.
The base station that space division multiple access under the super cell that the present embodiment provides accesses, after CP activates the CP activation collection that collection acquisition module obtains each unscheduled user, space division multiple access access user determines that module activates selection space division multiple access the unscheduled user collecting not common factor from the CP between unscheduled user and accesses user, and then described space division multiple access access user is distributed identical running time-frequency resource or different running time-frequency resources by resource distribution module.The base station that space division multiple access under super cell disclosed in the present embodiment accesses, it is possible to improve the probability carrying out space division multiple access access and the motility of resource distribution.
These are only the preferred embodiments of the present invention; not thereby the scope of the claims of the present invention is limited; every equivalent structure utilizing description of the present invention and accompanying drawing content to make or equivalence flow process conversion; or directly or indirectly it is used in other relevant technical fields, all in like manner include in the scope of patent protection of the present invention.
Claims (12)
1. the space division multiple access method under a super cell, it is characterised in that the space division multiple access method under described super cell comprises the following steps:
The CP obtaining each unscheduled user activates collection；
The unscheduled user that CP between unscheduled user activates collection not common factor is defined as space division multiple access access user；
Described space division multiple access is accessed user and distributes identical running time-frequency resource or different running time-frequency resources.
2. the space division multiple access method under super cell as claimed in claim 1, it is characterised in that the CP of each unscheduled user of described acquisition activates the step of collection and includes:
Obtain the CP that unscheduled user is corresponding；
Obtain the signal parameter value of this unscheduled user on each CP；
If the signal parameter value of this unscheduled user is more than preset signals parameter threshold level on each CP, it is determined that this CP is the activation CP of this unscheduled user；
The set activating CP of this unscheduled user determined is collected as the CP activation of this unscheduled user.
3. the space division multiple access method under super cell as claimed in claim 1 or 2, it is characterised in that the CP of each unscheduled user of described acquisition activates the step of collection and includes:
Obtain the CP that unscheduled user is corresponding；
Obtain the signal parameter value of this unscheduled user on each CP；
Obtain the CP that on the CP that unscheduled user is corresponding, the signal parameter value of this unscheduled user is maximum；
The signal parameter value of this unscheduled user and the difference of the signal parameter value of this unscheduled user on other CP on the CP that signal calculated parameter value is maximum；
If described difference is less than preset signals parameter difference threshold value, it is determined that this CP is the activation CP of this unscheduled user；
The set activating CP of this unscheduled user determined is collected as the CP activation of this unscheduled user.
4. the space division multiple access method under super cell as claimed in claim 1, it is characterised in that described activation by CP between unscheduled user after the unscheduled user that collection do not occur simultaneously is defined as the step that space division multiple access accesses user also includes:
Estimate the CP between described unscheduled user and activate the handling capacity before collection does not have the unscheduled user occured simultaneously to carry out after space division multiple access and carry out space division multiple access；
CP between unscheduled user is activated the handling capacity after carrying out space division multiple access in the unscheduled user that collection does not occur simultaneously and is defined as new space division multiple access access user more than the unscheduled user of the handling capacity before carrying out space division multiple access；
The described step that described space division multiple access access user distributes identical running time-frequency resource or different running time-frequency resources replaces with:
Described new space division multiple access is accessed user and distributes identical running time-frequency resource or different running time-frequency resources.
5. the space division multiple access method under super cell as claimed in claim 1, it is characterised in that described activation by CP between unscheduled user after the unscheduled user that collection do not occur simultaneously is defined as the step that space division multiple access accesses user also includes:
CP between unscheduled user is activated the unscheduled user that collection does not occur simultaneously, is ranked up according to dispatching priority；
Successively the unscheduled user coming foremost is defined as new space division multiple access and accesses user, until determined new space division multiple access accesses the space division multiple access access customer number order that user reaches to allow；
The described step that described space division multiple access access user distributes identical running time-frequency resource or different running time-frequency resources replaces with:
Described new space division multiple access is accessed user and distributes identical running time-frequency resource or different running time-frequency resources.
6. the space division multiple access method under super cell as claimed in claim 4, it is characterized in that, the handling capacity after carrying out space division multiple access in the described unscheduled user that CP between unscheduled user activates collection not common factor also includes after being defined as the step of new space division multiple access access user more than the unscheduled user of the handling capacity before carrying out space division multiple access:
Determined new space division multiple access is accessed user, is ranked up according to dispatching priority；
Successively the unscheduled user coming foremost is defined as final space division multiple access and accesses user, until determined final space division multiple access accesses the space division multiple access access customer number order that user reaches to allow；
The described step distributing identical running time-frequency resource or different running time-frequency resources to described new space division multiple access access user replaces with:
Described final space division multiple access is accessed user and distributes identical running time-frequency resource or different running time-frequency resources.
7. the base station that the space division multiple access under a super cell accesses, it is characterised in that the base station that the space division multiple access under described super cell accesses includes:
CP activates collection acquisition module, and the CP for obtaining each unscheduled user activates collection；
Space division multiple access accesses user and determines module, and the unscheduled user not occured simultaneously for the CP between unscheduled user activates collection is defined as space division multiple access and accesses user；
Resource distribution module, distributes identical running time-frequency resource or different running time-frequency resources for described space division multiple access is accessed user.
8. the base station that the space division multiple access under super cell as claimed in claim 7 accesses, it is characterised in that described CP activates collection acquisition module and includes:
Signal parameter acquiring unit, for obtaining the CP that unscheduled user is corresponding, obtains the signal parameter value of this unscheduled user on each CP；
Activate CP and determine unit, if the signal parameter value of this unscheduled user is more than preset signals parameter threshold level on each CP, it is determined that this CP is the activation CP of this unscheduled user；
CP activates collection and determines unit, for the CP as this unscheduled user that gathers activating CP of this unscheduled user determined is activated collection.
9. the base station that the space division multiple access under super cell as claimed in claim 7 or 8 accesses, it is characterised in that described CP activates collection acquisition module and includes:
Signal parameter acquiring unit, for obtaining the CP that unscheduled user is corresponding, obtains the signal parameter value of this unscheduled user on each CP；
Activate CP and determine unit, for obtaining the CP that on the CP that unscheduled user is corresponding, the signal parameter value of this unscheduled user is maximum；The signal parameter value of this unscheduled user and the difference of the signal parameter value of this unscheduled user on other CP on the CP that signal calculated parameter value is maximum；If described difference is less than preset signals parameter difference threshold value, it is determined that this CP is the activation CP of this unscheduled user；
CP activates collection and determines unit, for the CP as this unscheduled user that gathers activating CP of this unscheduled user determined is activated collection.
10. the base station that the space division multiple access under super cell as claimed in claim 7 accesses, it is characterised in that described space division multiple access accesses user and determines that module is additionally operable to:
Estimate the CP between described unscheduled user and activate the handling capacity before collection does not have the unscheduled user occured simultaneously to carry out after space division multiple access and carry out space division multiple access；
CP between unscheduled user is activated the handling capacity after carrying out space division multiple access in the unscheduled user that collection does not occur simultaneously and is defined as new space division multiple access access user more than the unscheduled user of the handling capacity before carrying out space division multiple access；
Described resource distribution module is used for:
Described new space division multiple access is accessed user and distributes identical running time-frequency resource or different running time-frequency resources.
11. the base station that the space division multiple access under super cell as claimed in claim 7 accesses, it is characterised in that described space division multiple access accesses user and determines that module is additionally operable to:
CP between unscheduled user is activated the unscheduled user that collection does not occur simultaneously, is ranked up according to dispatching priority；
Successively the unscheduled user coming foremost is defined as new space division multiple access and accesses user, until determined new space division multiple access accesses the space division multiple access access customer number order that user reaches to allow；
Described resource distribution module is used for:
Described new space division multiple access is accessed user and distributes identical running time-frequency resource or different running time-frequency resources.
12. the base station that the space division multiple access under super cell as claimed in claim 10 accesses, it is characterised in that described space division multiple access accesses user and determines that module is additionally operable to:
Determined new space division multiple access is accessed user, is ranked up according to dispatching priority；
Successively the unscheduled user coming foremost is defined as final space division multiple access and accesses user, until determined final space division multiple access accesses the space division multiple access access customer number order that user reaches to allow；
Described resource distribution module is used for:
Described final space division multiple access is accessed user and distributes identical running time-frequency resource or different running time-frequency resources.
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| CN201410749381.3A CN105744623A (en) | 2014-12-09 | 2014-12-09 | Super-cell SDMA (Spatial Division Multiple Access) method and base station |
| PCT/CN2015/086546 WO2016090936A1 (en) | 2014-12-09 | 2015-08-10 | Spatial division multiple access method under super-cell, base station thereof, and storage medium |
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| CN201410749381.3A CN105744623A (en) | 2014-12-09 | 2014-12-09 | Super-cell SDMA (Spatial Division Multiple Access) method and base station |
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| WO2016090936A1 (en) | 2016-06-16 |
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