CN105165093B

CN105165093B - A kind of injection frequency UE radio frequency resource distribution method and device

Info

Publication number: CN105165093B
Application number: CN201480001167.8A
Authority: CN
Inventors: 乌力吉; 蔺波
Original assignee: Huawei Technologies Co Ltd
Current assignee: XFusion Digital Technologies Co Ltd
Priority date: 2014-03-24
Filing date: 2014-03-24
Publication date: 2019-09-03
Anticipated expiration: 2034-03-24
Also published as: CN105165093A; WO2015143614A1

Abstract

The present invention discloses a kind of injection frequency UE radio frequency resource distribution method and device, the serving BS for the user equipment (UE) that macro base station and small base station are only one upstream radio-frequency chain RF, and the macro base station and small base station operation are in different frequency, then this method comprises: the macro base station determines the proportional arrangement type of the UE uplink and downlink resource；The macro base station determines the interval time of any two neighboring upstream subframe collection in radio frames according to determining proportional arrangement type；According to the interval time from the determination sub-frame of uplink collection in radio frames as the corresponding second downstream feedback time slot of the corresponding first downstream feedback time slot of macro base station and the small base station；Small base station and macro base station is set to receive the uplink feedback of the UE in different sub-frame of uplink collection.So scheme provided by the present invention can allow the UE for being only provided with a upstream radio-frequency chain enjoy the gains of double linked networks.

Description

A kind of injection frequency UE radio frequency resource distribution method and device

Technical field

The present invention relates to mobile communication technology field more particularly to a kind of injection frequency UE radio frequency resource distribution method and dresses It sets.

Background technique

In long term evolution (Long Term Evolution, LTE) system, in order to promote the message transmission rate of user, and Reduce delay.Carrier wave polymerization (Carrier Aggregation, CA) technology is introduced in LTE version 10, i.e. a user sets Standby (User Equipment, UE) can provide service by multiple downlinks and/or up-link carrier, to improve the data transmission speed of UE Rate.UE under carrier aggregation technology can be there are two the serving cell of different descending carriers, on each descending carrier is one corresponding Row carrier wave；Certainly, UE is also possible to the shared up-link carrier of two descending carriers.No matter UE has one or multiple uplinks Carrier wave, the physical uplink control channel (Physical Uplink Control CHannel, PUCCH) for uplink is only Exist on the up-link carrier of the main plot (Primary cell, Pcell) of multiple downlink cells towards UE.Because of CA technology In be two cells of same UE service be optical fiber connection either co-sited, UE is by the PUCCH of Pcell to secondary cell The information that (Secondary cell, Scell) is sent can timely reach Scell, that is, linking between Pcell and Scell For ideal back haul link (backhaul) link.

But some novel network scenarios, UE can be simultaneously by macrocell (Macro cell) and cells now (Small cell) is serviced simultaneously, i.e., double-strand connects scene, is linked between macrocell and cell with non-ideal backhaul network.For It is a UE service there are both links for the same UE.

The type that existing UE can work in above-mentioned scene has:

Only one reception rf chain (Radio Frequency, RF) of A, UE and a transmission RF (i.e. Single-Input Single-Output)；

B, UE have a reception RF and multiple transmission RF (i.e. Single-Input Multiple-Output)；

C, UE have RF and transmission RF of multiple receptions (i.e. to receive single-shot) more；

D, UE have multiple reception RF and multiple transmission RF (i.e. more receipts are multiple).

In the case where double-strand connects scene, a UE is by the cell serves of two different descending carriers, because of the frequency point of two cells It is not identical, so UE needs switch between different frequency points, need to consider RF retuning (RF retuning) under the scene；Separately Outside, because being linked between macrocell and cell with non-ideal backhaul, there are time delays for data transmission, so under the program also Need to consider that another factor is two-way time intervalometer (the Hybrid Automatic of hybrid automatic repeat-request Repeat Request Round Trip Time, HARQ RTT timer).

Wherein, RF retuning (retuning) refers to: when the RF rf chain of UE is moved to another frequency point by a frequency point The case where；Due to the limitation of rf chain component when RF retuning occurs, UE could be after will be about interval 0.6ms It works on new frequency point, therefore when next millisecond of RF retuning occurs for rf chain, the RF of UE can an empty subframe.I.e. if downlink Retuning occurs for RF, then UE cannot be received in next millisecond that retuning occurs；If retuning occurs for uplink RF, UE is being sent out Next millisecond of raw retuning cannot be sent.

In the prior art, network side is macro before will checking when HARQ RTT timer is configured to 8ms, i.e. 8ms Whether the data that cell is sent to UE are successfully received, if receiving the ACK message of the side UE transmission, it is determined that macrocell data It sends successfully；It is exactly unsuccessful if it is NACK；For TDD, HARQ RTT timer is configured to k+4ms, and k is basis TDD matches one that type obtains can be with feeding back ACK/NACK minimum value.

Due to the presence of RF retuning and HARQ RTT timer, double-strand, which connects scene, can encounter following these problems:

For more receipts single-shot UE under double-strand connects scene, because only one RF of uplink, uplink feedback can only be fed back Onto a website, if using existing CA technology, UE receive Small cell by Physical Downlink Shared Channel physics After the downlink data that (Physical Downlink Shared Channel, PDSCH) is sent, Macro cell's HARQ feedback is sent on PUCCH, Macro cell is transmitted to small cell and UE in Macro after receiving HARQ feedback Channel state information (channel state information, CSI) feedback is sent on the PUCCH of cell, Macro cell is received Small cell is transmitted to after.Since the time delay representative value that double-strand connects non-ideal backhaul network under scene is 20ms, cause The HARQ feedback or CSI feedback of Macro cell forwarding cannot timely reach cell, not be able to satisfy wanting for HARQ timing It asks and (4ms is needed to obtain feedback) or scheduler module requires the timeliness of CSI feedback.

In view of the above-mentioned problems, following two solution is proposed in the prior art, specifically:

One, after UE receives the downlink data that Small cell is sent by PDSCH, on the PUCCH of Macro cell HARQ feedback is sent, Macro cell is transmitted to small cell and UE and sends on the PUCCH of Macro cell after receiving CSI feedback, Macro cell are transmitted to small cell after receiving.

It in order to realize above-mentioned data transmission scheme, while also needing to modify the sequential relationship of HARQ process, 4ms is modified as 40ms etc..Due to increasing the duration of HARQ timing, also need to increase the quantity of HARQ timing simultaneously, such as to 40.HARQ Timing increase causes the propagation delay time of data packet also to increase.For example retransmit 3 times, it is previously required to 3*8=24ms, it is now desired to 3*80 =240ms.

Two, as shown in Figure 1, the downlink subframe of UE received time on Macro cell is: subframe n+0, n+1, n+2； The time that downlink subframe is converted between two cell is subframe n+3；Downlink subframe received time on Small cell is Subframe n+4, n+5, n+6.

The time that the sub-frame of uplink of UE is sent on small cell is: subframe n+0, n+1, n+2；Sub-frame of uplink is at two The time converted between cell is subframe n+3；The time that sub-frame of uplink is sent on Small cell is subframe n+4, n+5, n+ 6。

Realize that double-strand connects by the above method, when Macro cell is dispatched, Pico cell cannot be dispatched the downlink of UE, Decline so as to cause the downlink throughput capacity of UE.

Above two existing double-strand connects implementation, the problem is that:

LTE technology is not applied under the scene of a up-link carrier more base stations and provides service for UE, cannot be effectively While UE is realized to more base station feedback HARQ feedbacks or CSI feedback, does not allow downlink throughput capacity to decline, also do not allow time delay to reduce More than given threshold.

Summary of the invention

The embodiment of the present invention provides a kind of injection frequency UE radio frequency resource distribution method and device, to solve LTE technology not It can be suitably used for the problem of more base stations provide service for UE under the scene of a up-link carrier.

In a first aspect, providing a kind of macro base station, the macro base station and small base station are only one upstream radio-frequency chain RF's The serving BS of user equipment (UE), and the macro base station and small base station operation in different frequency, then the macro base station includes:

Determination unit, for determining the proportional arrangement type of the UE uplink and downlink resource；

Slot time determination unit, for determining that any two are adjacent in radio frames according to determining proportional arrangement type The number of special subframe and downlink subframe between row subframe collection, determines institute according to the number of the special subframe and downlink subframe State the interval time between any two neighboring upstream subframe collection；Wherein, the sub-frame of uplink collection is by a sub-frame of uplink or more A continuous sub-frame of uplink composition；

Feedback slot coordination unit, for according to the interval time from the determination sub-frame of uplink collection in radio frames as macro The corresponding second downstream feedback time slot of the corresponding first downstream feedback time slot in base station and the small base station, wherein under described first An interval time is spaced between row feedback slot and the second downstream feedback time slot；

First instruction process unit, for generating the first control according to the first downstream feedback time slot and the second downstream feedback time slot System instruction, and sends the small base station for first control instruction, wherein first control instruction is for small base station and macro Base station receives the uplink feedback of the UE in different sub-frame of uplink collection.

With reference to first aspect, in the first possible implementation, when the macro base station and small base station are respectively with frequency division Duplexing FDD mode of operation, the feedback slot coordination unit determine that the interval time is RF retuning RF retuning Time.

With reference to first aspect, in the second possible implementation, when only one downlink radio frequency chain of the UE, work as institute Macro base station and small base station are stated respectively with Time Division Duplex TDD mode of operation, then the macro base station further include:

Number of sub-frames determination unit, the position of the downlink subframe collection for determining the UE according to the proportional arrangement type The number of sub-frames concentrated with the downlink subframe；

Second instruction process unit, the number of sub-frames for including when determining each sub-frame of uplink collection is not less than 2, according to institute The number of sub-frames for stating downlink subframe collection position and downlink subframe concentration generates the second control instruction, and described second is controlled Instruction is sent to the UE and the small base station, and second control instruction is used to indicate the small base station and sends in downlink subframe Downlink data；And indicate that the UE receives the lower line number that the small base station is sent in the position of the downlink subframe using uplink RF According to, and uplink RF is switched back into the last one subframe of sub-frame of uplink concentration and special subframe.

The possible implementation of second with reference to first aspect, in the third possible implementation, described second Instruction process unit is also used for broadcast message, radio resource control RRC signaling, media access control layer control unit Second control instruction is sent to the UE by the combination of one or more of MACCE or physical layer command mode With the small base station.

With reference to first aspect or the first to three kind of possible implementation of first aspect, in the 4th kind of possible reality In existing mode, the mixing in first control instruction that first instruction process unit is sent including the macro base station is automatic The two-way time intervalometer HARQ RTT timer of retransmission request, so that the small base station receives the macro base station The HARQ RTT timer of itself is set after HARQ RTT timer.

With reference to first aspect or first to fourth kind of possible implementation of first aspect, in the 5th kind of possible reality In existing mode, the present invention provides a kind of user equipment, and user equipment includes:

Receiving module receives first control instruction that macro base station is sent, and receives what macro base station and small base station were sent Downlink data；

Feedback slot determination unit, for determining the corresponding macro base station and the small base according to first control instruction The the first downstream feedback time slot and the second downstream feedback time slot stood；

Sending module, for utilizing the first downstream feedback time slot and the second downstream feedback time slot by the downlink data Feedback information fed back respectively to the macro base station and the small base station.

The 5th kind of possible implementation with reference to first aspect, in a sixth possible implementation, when described macro Base station and small base station are respectively with FDD mode of operation, then the sending module is also used in the first downstream feedback time slot and second Interval time between downstream feedback time slot carries out RF retuning RF retuning.

The 5th kind of possible implementation with reference to first aspect, in the 7th kind of possible implementation, when the use Only one downlink radio frequency chain of family equipment, then the receiving module is also used to after receiving second control instruction, root The downlink data that the small base station is sent is received in the position of downlink subframe using uplink RF according to second control instruction, and The last one subframe or special subframe of the sub-frame of uplink collection switch back into uplink RF.

Second aspect, the present invention also provides a kind of injection frequency UE radio frequency resource distribution methods, when macro base station and small base station are The serving BS of the user equipment (UE) of one only one upstream radio-frequency chain RF, and the macro base station and small base station operation are in different frequencies Rate, then this method comprises:

The macro base station determines the proportional arrangement type of the UE uplink and downlink resource；

The macro base station according to determining proportional arrangement type determine in radio frames any two neighboring upstream subframe collection it Between special subframe and downlink subframe number, any two are determined according to the number of the special subframe and downlink subframe Interval time between neighboring upstream subframe collection；Wherein, the sub-frame of uplink collection by a sub-frame of uplink or it is multiple it is continuous on Row subframe composition；

The macro base station is corresponding as macro base station from the determination sub-frame of uplink collection in radio frames according to the interval time The corresponding second downstream feedback time slot of first downstream feedback time slot and the small base station, wherein the first downstream feedback time slot An interval time is spaced between the second downstream feedback time slot；

The macro base station generates the first control instruction according to the first downstream feedback time slot and the second downstream feedback time slot, and will First control instruction is sent to the small base station, wherein first control instruction is for small base station and macro base station different Sub-frame of uplink collection receives the uplink feedback of the UE.

In conjunction with second aspect, in the first possible implementation, when the macro base station and small base station are respectively with FDD work It works as mode, the macro base station determines that the interval time is the time of RF retuning RF retuning.

It is in the second possible implementation, when only one downlink radio frequency chain of the UE, then square in conjunction with second aspect Method further include:

The macro base station according to the proportional arrangement type determine the UE downlink subframe collection position and the downlink The number of sub-frames that subframe is concentrated；

The macro base station is not less than 2 when the number of sub-frames that determining each sub-frame of uplink collection includes, according to the downlink subframe The number of sub-frames for collecting position and downlink subframe concentration generates the second control instruction, and sends second control instruction to The UE and the small base station, second control instruction are used to indicate the small base station and send downlink data in downlink subframe； And indicate that the UE receives the downlink data that the small base station is sent in the position of the downlink subframe using uplink RF, and in institute The last one subframe and special subframe for stating sub-frame of uplink concentration switch back into uplink RF.

In conjunction with second of possible implementation of second aspect, in the third possible implementation, described second Control instruction is sent to the UE and the small base station includes:

Pass through broadcast message, radio resource control RRC signaling, media access control layer control unit MACCE or physics The combination of one or more of layer order mode, is sent to the UE and the small base station for second control instruction.

In conjunction with the first to three kind of possible implementation of second aspect or second aspect, in the 4th kind of possible reality In existing mode, the two-way time interval timing of the hybrid automatic repeat-request in first control instruction including the macro base station Device HARQ RTT timer, so that itself is arranged after receiving the HARQ RTT timer of the macro base station in the small base station HARQ RTT timer。

In conjunction with the possible implementation of first to fourth of second aspect or second aspect kind, in the 5th kind of possible reality In existing mode, the present invention also provides a kind of injection frequency application methods, this method comprises:

The user equipment receives the first control instruction that macro base station is sent, and receives under macro base station and the transmission of small base station Row data；

The user equipment determines the first of the corresponding macro base station and the small base station according to first control instruction Downstream feedback time slot and the second downstream feedback time slot；

The user equipment utilizes the first downstream feedback time slot and the second downstream feedback time slot by the downlink data Feedback information fed back respectively to the macro base station and the small base station.

In conjunction with the 5th kind of possible implementation of second aspect, in a sixth possible implementation, when described macro Base station and small base station are respectively with FDD mode of operation, this method further include:

Interval time of the user equipment between the first downstream feedback time slot and the second downstream feedback time slot carries out RF Retuning RF retuning.

In conjunction with the 5th kind of possible implementation of second aspect, in the 7th kind of possible implementation, when the use Family equipment only one downlink radio frequency chain RF, this method further include:

After receiving second control instruction that the macro base station is sent, used according to second control instruction Uplink RF receives the downlink data that the small base station is sent in the position of downlink subframe, and the sub-frame of uplink collection last A subframe or special subframe switch back into uplink RF.

Said one or multiple technical solutions in the embodiment of the present application, at least have the following technical effect that:

In scheme provided by the invention, when work is simultaneously only one uplink in the macro base station of different frequency and small base station When the UE of rf chain provides service, in scheme provided by the embodiment of the present invention, macro base station and small base station can determine one Then multiple sub-frame of uplink collection are coordinated to divide by the sub-frame of uplink collection in a or continuous two radio frames according to default rule Dispensing macro base station either small base station, so that macro base station and small base station can provide clothes to UE under the premise of not conflicting Business.So UE that scheme provided by the present invention can make only to be provided with a upstream radio-frequency chain (including single-shot send receive with And the UE that receives of single-shot list) gains of double linked networks can be enjoyed.

Detailed description of the invention

Fig. 1 is the distribution schematic diagram that network double-strand socket part affixes one's name to each subframe in the prior art；

Fig. 2 is a kind of structural schematic diagram of macro base station provided in an embodiment of the present invention；

Fig. 3 is a kind of structural schematic diagram of user equipment provided in an embodiment of the present invention；

Fig. 4 is a kind of flow diagram of injection frequency UE radio frequency resource distribution method provided in an embodiment of the present invention；

Fig. 5 is a kind of flow diagram of injection frequency application method provided in an embodiment of the present invention；

Fig. 6 for institute's providing method of the embodiment of the present invention each subframe in the use environment of situation one distribution schematic diagram；

Fig. 7 for institute's providing method of the embodiment of the present invention each subframe in the use environment of situation two distribution schematic diagram；

Fig. 8 for institute's providing method of the embodiment of the present invention each subframe in the use environment of situation three distribution schematic diagram.

Specific embodiment

In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is A part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art Every other embodiment obtained without creative efforts, shall fall within the protection scope of the present invention.

Under the scene of only one up-link carrier of UE, existing LTE technology can not achieve more base stations and provide service for UE.For UE is effectively realized to more base station feedback HARQ feedbacks or CSI feedback, while not allowing downlink throughput capacity to decline, when also not allowing Prolong reduction more than obvious (reduction within the scope of tolerable can receive).The embodiment of the present invention provides a kind of macro base station, the macro base It stands serving BS that (Macro eNB) and small base station (Small eNB) are a user equipment (UE), and the macro base station and small base station Work is the service base of the user equipment (UE) of only one upstream radio-frequency chain RF in different frequency, the macro base station and small base station It stands, then the macro base station includes:

When work is when the macro base station of different frequency and small base station provide service simultaneously for UE, the embodiment of the present invention is mentioned The base station of confession can determine the sub-frame of uplink collection in one or continuous two radio frames, then by multiple sub-frame of uplink collection Macro base station either small base station is reasonably distributed to, so that macro base station and small base station can be given under the premise of not conflicting UE provides service.So scheme provided by the present invention can make only to be provided with the UE of a upstream radio-frequency chain, (including single-shot is sent The UE received and single-shot list is received more) gains of double linked networks can be enjoyed.

The embodiment of the present invention is described in further detail with reference to the accompanying drawings of the specification.

Embodiment one:

As shown in Fig. 2, the embodiment of the present invention provides a kind of macro base station 200, the macro base station and small base station are one only one The serving BS of the user equipment (UE) of a upstream radio-frequency chain RF, and the macro base station and small base station operation then should in different frequency Macro base station includes:

Determination unit 201, for determining the proportional arrangement type of the UE uplink and downlink resource；

The LTE TDD system of current version 8 includes the proportional arrangement of 7 kinds of different TDD uplink and downlink resources, specific to configure Situation is as shown in table 1, and D indicates that downlink subframe, S indicate that special subframe, U indicate sub-frame of uplink in table 1.

Table 1

UE can choose any one configuration in above-mentioned 7 seed type and carry out resource allocation in actual application environment, Because scheme provided by the embodiment of the present invention needs to establish on the basis of above-mentioned frame structure, by the sub-frame of uplink in radio frames It is reasonable to distribute a macro base station and small base station.So macro base station just can determine that respectively after determining UE using which type of configuration Interval time between sub-frame of uplink, so as to be distributed to different sub-frame of uplink according to the time relationship between each subframe Macro base station and small base station use.

Slot time determination unit 202, for determining any two phase in radio frames according to determining proportional arrangement type The number of special subframe and downlink subframe between adjacent sub-frame of uplink collection, the number according to the special subframe and downlink subframe are true Interval time between the fixed any two neighboring upstream subframe collection；Wherein, the sub-frame of uplink collection is by a sub-frame of uplink Or multiple continuous sub-frame of uplink compositions；

In the proportional arrangement provided as described in Table 1, if UE selection percentage Configuration Type 0, in the embodiment of the present invention The slot time determination unit regard subframe 2,3 and 4 as a sub-frame of uplink collection, and subframe 7,8 and 9 is used as another subframe Collection, macro base station is in order to indicate itself and small base station in different subframe concentration of transmissions data, then it needs to be determined that two subframe collection Between time interval, so as to according to this time interval determine receive either send data subframe position.So In proportional arrangement type 0, subframe collection just includes first sub-frame of uplink collection being made of subframe 2,3 and 4；By subframe 7,8 and 9 Second sub-frame of uplink collection of composition, because then using two after macro base station and small base station determine respectively subframe collection to be used Special subframe and/or downlink subframe (the i.e. described interval time) between sub-frame of uplink collection carry out between macro base station and small base station Switching.

Above-mentioned is the explanation carried out by taking type 0 as an example, and other types are identical with the implementation of type 0；Such as: type 3 In, sub-frame of uplink collection is that subframe 2,3 and 4 forms.If macro base station is formed upper using the subframe 2,3 and 4 of current radio frames Row subframe collection, then the sub-frame of uplink collection that the corresponding subframe 2,3 and 4 using next radio frames in small base station forms.

Feedback slot coordination unit 203, for being made according to the interval time from the determination sub-frame of uplink collection in radio frames For the corresponding second downstream feedback time slot of the corresponding first downstream feedback time slot of macro base station and the small base station, wherein described An interval time is spaced between one downlink feedback slot and the second downstream feedback time slot；

In embodiments of the present invention, wireless determining because UE can receive the data of macro base station and small base station In frame behind the position of sub-frame of uplink collection, by the corresponding radio frames ascending resource coordinated allocation of a upstream radio-frequency chain to macro base station and Small base station.

Macro base station and small base station determine after itself corresponding sub-frame of uplink collection, so that it may determine different sub-frame of uplink collection As the corresponding second downstream feedback time slot of the corresponding first downstream feedback time slot of macro base station and the small base station.

First instruction process unit 204, for generating the according to the first downstream feedback time slot and the second downstream feedback time slot One control instruction, and the small base station is sent by first control instruction, wherein first control instruction is used for small base station The uplink feedback of the UE is received in different sub-frame of uplink collection with macro base station.

In embodiments of the present invention, since it is desired that macro base station and small base station coordinate to use the unique upstream radio-frequency chain of UE, institute Need to coordinate uplink used in itself with macro base station and small base station, thus through the above scheme macro base station determine it is usable Sub-frame of uplink position after, then need to determine each with small base station using which part sub-frame of uplink.Wherein macro base station Determine that the specific implementation of the sub-frame of uplink respectively used may is that with small base station

In the embodiment of the present invention, because of only one upstream radio-frequency chain of UE, but two serving BSs are corresponded to, so needing Two serving BSs are wanted to coordinate to use this upstream radio-frequency chain.Coordinate the tool using this upstream radio-frequency chain two base stations Body implementation may is that

A, Macro eNB and the Small eNB of network side negotiate the HARQ RTT timer of UE；Specific implementation may is that

Macro eNB is sent to Small eNB negotiates request, and negotiation request is used to indicate needs and Small eNB is total With a upstream radio-frequency chain of the UE；

The response message (response) for the negotiation request for receiving Small eNB feedback, according to the response Message determines whether Small eNB agrees to share the upstream radio-frequency chain.

How B, Macro eNB unified calculation Macro eNB and Small eNB use mono- upstream radio-frequency link of UE, and Calculated result is notified into Small eNB；Small eNB just directly receives UE according to the instruction of Macro eNB after receiving notice Downstream feedback.

In embodiments of the present invention, as long as small base station and macro base station coordinate to determine how to share a upstream radio-frequency chain, and Mutually notify the subframe respectively used, then it is only one upstream radio-frequency chain that two serving cells of the presently claimed invention, which can be achieved, UE service technical effect, so in embodiments of the present invention, the macro base station is determining macro base station and small base station to institute After the service condition for stating a upstream radio-frequency chain, the mode packet how the upstream radio-frequency chain uses is coordinated in macro base station and small base station Include a variety of, two kinds of most common modes presented below:

Mode one, the HARQ RTT timer for having oneself because of macro base station and small base station, macro base station are determining certainly After oneself HARQ RTT timer, the HARQ RTT timer of itself can be sent to small base station, small base station then can basis The HARQ RTT timer of the macro base station received determines the HARQ RTT timer of itself.So that two two base station energy Enough upstream radio-frequency chains for coordinating to share UE.So in this embodiment:

It include the HARQ of the macro base station in first control instruction that first instruction process unit 204 is sent RTT timer, so that the small base station receives the HARQ RTT that itself is arranged after the HARQ RTT timer of the macro base station timer。

Mode two, because macro base station can determine whether that itself and small base station use the subframe of the UE upstream radio-frequency chain, Macro base station determine how using the UE upstream radio-frequency chain concrete mode after, can directly will the small base station use institute Value is transmitted directly to small base station at the time of stating upstream radio-frequency chain, enables small base station that itself is arranged according to the moment value HARQ RTT timer。

In addition, because the macro base station and small base station may is that time division duplex (Time Division Duplexing, TDD) mode, which works, is also possible to frequency division duplex (Frequency Division Duplexing, FDD) mode and works, and works as base station When thinking that FDD mode works, because frequency point used in macro base station and small base station is not identical, UE is in order to different base stations Interaction need switch between different frequency points, so when the macro base station and small base station respectively with FDD mode of operation when, if UE sends the uplink feedback for being directed to two base stations, then RF rf chain is needed to be moved to another frequency point (i.e. RF by a frequency point Retuning), because due to the limitation of rf chain component when RF retuning occurs, cannot accomplish immediately in new frequency It works on point, centre needs certain switching time.So in this case, the uplink of macro base station and small base station calculating UE are anti- When presenting the time, need to remove the time of the RF retuning.So when the macro base station and small base station are respectively with FDD work It works as mode, the feedback slot coordination unit 203 determines that the interval time is the time of UE RF retuning.

In the prior art, there are also some UE not only upstream radio-frequency chain only one, downlink radio frequency also only one, it is right In a traditional non-CA UE can only the same site link, two RF are worked respectively in uplink and downlink, in FDD network Under, because uplink and downlink is different frequency point, it is therefore desirable to uplink RF and downlink RF are worked at the same time, however under TDD network, when upper Row RF work when, downlink RF be it is idle, when downlink RF work when, uplink RF is idle.In order to improve user The utilization rate of equipment RF can enable the RF of free time under TDD network, coordinate macro base station and small base station and use the original free time RF send data.To achieve the goals above, macro base station and small base station also need further to determine multiple coordinated manipulations Parameter.So the base station further include:

Number of sub-frames determination unit 205, for determining according to the proportional arrangement type downlink subframe collection of the UE The number of sub-frames that position and the downlink subframe are concentrated；

Second instruction process unit 206, the number of sub-frames for including when determining each sub-frame of uplink collection is not less than 2, root The second control instruction is generated according to the number of sub-frames that downlink subframe collection position and the downlink subframe are concentrated, and by described second Control instruction is sent to the UE and the small base station, and second control instruction is used to indicate the small base station in downlink subframe Send downlink data；And indicate that the UE is received under the small base station transmission using uplink RF in the position of the downlink subframe Row data, and uplink RF is switched back into the last one subframe of sub-frame of uplink concentration and special subframe.

In embodiments of the present invention, the UE of the non-CA traditional for one can only the same site link, two RF difference Work is in uplink and downlink, under FDD network, because uplink and downlink is different frequency point, it is therefore desirable to which uplink RF and downlink RF are same When work, however under TDD network, when uplink RF work, downlink RF be it is idle, when downlink RF work, Uplink RF is idle.So in the present embodiment, in order to which idle RF is used, it is possible to switch to uplink RF The downlink RF of downlink data is received, to two downlink RF can be used to respectively correspond the transmission for receiving macro base station and small base station Data.

But because it cannot accomplish to work on new frequency point immediately, centre needs when RF switches between uplink and downlink Certain switching time.So in order to guarantee RF uplink and downlink switching and upstream data normal transmission, then it needs to be determined that on The number of sub-frames that row subframe collection includes is not less than 2.Because the sub-frame of uplink collection needs a part of resource for upstream data Transmission, switching time needed for uplink and downlink switching of the another part resource for realizing the RF.

In double linked networks, since a UE can there are two stations to service simultaneously for it, for only one uplink and The UE of one downlink RF makes full use of idle RF, when Macro cell and the Small cell of double linked networks are TDD moulds Formula, UE can obtain double gains of the linked network in handling capacity.

In embodiments of the present invention, between the macro base station and small base station send control instruction mode can be it is a variety of, Optional way may is that

Second instruction process unit 206 is also used for broadcast message, radio resource control RRC signaling, media connect The combination for entering one or more of control layer control unit MACCE or physical layer command mode is controlled described second Instruction is sent to the UE and the small base station.

In scheme provided by the embodiment of the present invention, when work mentions simultaneously for UE in the macro base station of different frequency and small base station When for service, base station provided by the embodiment of the present invention can determine uplink in one or continuous two radio frames Then multiple sub-frame of uplink collection are reasonably distributed to macro base station either small base station, so that macro base station and small base by frame collection Service can be provided to UE under the premise of not conflicting by standing.So scheme provided by the present invention can make only to be provided with one The UE (sending the UE received and single-shot list is received including single-shot) of upstream radio-frequency chain can enjoy the gain of double linked networks more.

Although being to be described using macro base station as leading equipment to the implementation that the solution of the present invention carries out in above scheme, During concrete implementation, it is also possible to the either small base station UE and executes the scheme that the provided module of embodiment is realized.

Embodiment two:

In the scheme provided by the embodiment of the present invention, macro base station is determined according to the uplink and downlink resource of UE than column Configuration Type After the good sub-frame of uplink collection itself respectively used with small base station, then need to send user equipment for last coordination result UE, so that the coordination result that user equipment is determined according to macro base station adjusts base station corresponding to sub-frame of uplink, so based on above-mentioned The macro base station provided in scheme also provides a kind of user equipment in the embodiment of the present invention, and user equipment includes (as shown in Figure 3):

Receiving module 301 receives first control instruction that macro base station is sent, and receives macro base station and the transmission of small base station Downlink data；

Feedback slot determination unit 302, for determining the corresponding macro base station and described according to first control instruction The the first downstream feedback time slot and the second downstream feedback time slot of small base station；

Because macro base station is after determining sub-frame of uplink collection corresponding to itself and small base station, user equipment then needs basis It is that macro base station is coordinated as a result, using different sub-frame of uplink as be directed to different base station downstream feedback time slot.

Sending module 303, for utilizing the first downstream feedback time slot and the second downstream feedback time slot by the downlink The feedback information of data is fed back respectively to the macro base station and the small base station.

Because user equipment has received the downlink data of two base stations transmission, user equipment is needed in different uplinks Subframe, which is concentrated, feeds back feedback information corresponding to the downlink data.

Such as: the uplink and downlink resource proportional arrangement of user equipment is type 0, then user equipment can according to the first control instruction Using by first sub-frame of uplink collection (being made of subframe 2,3 and 4) as be directed to the macro base station the first downstream feedback time slot；It will Second sub-frame of uplink collection (being made of subframe 7,8 and 9) is as the second downstream feedback time slot for being directed to the small base station.

In addition, being also possible to FDD mode because the macro base station and small base station can be TDD mode and work and working, work as base When station thinks that FDD mode works, because frequency point used in macro base station and small base station is not identical, UE is in order to different bases Stand interaction need switch between different frequency points, so when the macro base station and small base station respectively with FDD mode of operation when, If UE sends the uplink feedback for being directed to two base stations, RF rf chain is needed to be moved to another frequency point (i.e. RF by a frequency point Retuning), because due to the limitation of rf chain component when RF retuning occurs, cannot accomplish immediately in new frequency It works on point, centre will appear certain switching time.So when the macro base station and small base station are respectively all with FDD working method When work, then when the sending module 303 is also used in the interval between the first downstream feedback time slot and the second downstream feedback time slot Between carry out RF retuning RF retuning.

The UE of the non-CA traditional for one can only the same site link, two RF work respectively in uplink and downlink, Under FDD network, because uplink and downlink is different frequency point, it is therefore desirable to uplink RF and downlink RF are worked at the same time, however in TDD net Under network, when uplink RF work when, downlink RF be it is idle, when downlink RF work when, uplink RF is idle.In order to The utilization rate for improving user equipment RF can enable idle RF under TDD network, in the case where idle RF is enabled, use Family equipment can then regard tool as, and there are two the equipment of downlink RF, so macro base station and small base can be received two RF respectively Stand send downlink data.So under TDD network, when only one downlink radio frequency chain of the user equipment, then:

The receiving module 301 is also used to after receiving second control instruction, is referred to according to second control It enables and receives the downlink data that the small base station is sent in the position of downlink subframe using uplink RF, and in the sub-frame of uplink collection The last one subframe or special subframe switch back into uplink RF.

In scheme provided by the embodiment of the present invention, when work mentions simultaneously for UE in the macro base station of different frequency and small base station For service when, user equipment (UE) in order to reasonable utilization itself rf chain resource, by unique upstream radio-frequency chain not Switch between same base station, the feedback information of the data so as to send macro base station and small base station is corresponding to feed back to macro base It stands and small base station.

In addition, under TDD network, when user equipment is only provided with a upstream radio-frequency chain and a downlink radio frequency chain, In order to improve the RF utilization rate of UE, then the RF for being originally used for uplink can be switched to downlink, to will be originally used for connecing respectively Two RF for receiving uplink and downlink are used to receive the downlink data of macro base station and small base station simultaneously, to reach double linked networks Gain.

Embodiment three:

As shown in figure 4, a kind of injection frequency UE radio frequency resource distribution method is also provided based on the above-mentioned apparatus embodiment of the present invention, When the serving BS for the user equipment (UE) that macro base station and small base station are only one upstream radio-frequency chain RF, and the macro base station and Small base station operation in different frequency, this method comprises:

Step 401, the macro base station determines the proportional arrangement type of the UE uplink and downlink resource；

Step 402, the macro base station determines any two neighboring upstream in radio frames according to determining proportional arrangement type The number of special subframe and downlink subframe between subframe collection, according to the determination of the number of the special subframe and downlink subframe Interval time between any two neighboring upstream subframe collection；Wherein, the sub-frame of uplink collection is by a sub-frame of uplink or multiple Continuous sub-frame of uplink composition；

Step 403, the macro base station according to the interval time from the determination sub-frame of uplink collection in radio frames as macro base It stands the corresponding second downstream feedback time slot of corresponding first downstream feedback time slot and the small base station, wherein first downlink An interval time is spaced between feedback slot and the second downstream feedback time slot；

Step 404, the macro base station generates the first control according to the first downstream feedback time slot and the second downstream feedback time slot Instruction, and the small base station is sent by first control instruction, wherein first control instruction is used for small base station and Hong Ji It stands and receives the uplink feedback of the UE in different sub-frame of uplink collection.

In addition, being also possible to FDD mode because the macro base station and small base station can be TDD mode and work and working, work as base It stands when working for FDD mode, because frequency point used in macro base station and small base station is not identical, UE is in order to different base stations Interaction needs to switch between different frequency points, thus the subframe collection in macro base station and the occupied UE upstream radio-frequency chain in small base station it Between be then spaced a RF retuning the time it takes.Institute is in this way further include:

When the macro base station and small base station are respectively with FDD mode of operation, the macro base station determines the interval time For the time of RF retuning RF retuning.

In the prior art, there are also some UE not only upstream radio-frequency chain only one, downlink radio frequency also only one, it is right In a traditional non-CA UE can only the same site link, two RF are worked respectively in uplink and downlink, in FDD network Under, because uplink and downlink is different frequency point, it is therefore desirable to uplink RF and downlink RF are worked at the same time, however under TDD network, when upper Row RF work when, downlink RF be it is idle, when downlink RF work when, uplink RF is idle.In order to improve user The utilization rate of equipment RF can enable the RF of free time under TDD network, coordinate macro base station and small base station and use the original free time RF send data.To achieve the goals above, then this method comprises:

The macro base station is greater than 2 when the number of sub-frames that determining each sub-frame of uplink collection includes, then according to the downlink subframe The number of sub-frames for collecting position and downlink subframe concentration generates the second control instruction, and sends second control instruction to The UE and the small base station, second control instruction are used to indicate the small base station and send downlink in the sub-frame of uplink collection Data；And indicate that the UE receives the lower line number that the small base station is sent in the position of the sub-frame of uplink collection using uplink RF According to, and uplink RF is switched back into the last one subframe that the sub-frame of uplink is concentrated.

The macro base station uses formula or more either in broadcast message, RRC signaling, MACCE or physical layer command The control instruction (control instruction includes the first control instruction and the second control instruction) is sent to institute by the combination of kind mode State UE and the small base station.

In embodiments of the present invention, as long as small base station and macro base station coordinate to determine how to share a upstream radio-frequency chain, and Mutually notify the subframe respectively used, then it is only one upstream radio-frequency chain that two serving cells of the presently claimed invention, which can be achieved, UE service technical effect, so in embodiments of the present invention, the macro base station is determining macro base station and small base station to institute After the service condition for stating a upstream radio-frequency chain, the mode packet how the upstream radio-frequency chain uses is coordinated in macro base station and small base station Include a variety of, concrete mode may is that

It include the HARQ RTT timer of the macro base station in first control instruction, so that the small base station receives The HARQ RTT timer of itself is set after the HARQ RTT timer of the macro base station.

Example IV:

In the scheme provided by the embodiment of the present invention, macro base station is determined according to the uplink and downlink resource of UE than column Configuration Type After the good sub-frame of uplink collection itself respectively used with small base station, then need to send user equipment for last coordination result UE, so that the coordination result that user equipment (UE) is determined according to macro base station adjusts base station corresponding to sub-frame of uplink, so based on real The method provided in example three is provided, also provides a kind of injection frequency application method in the embodiment of the present invention, this method includes that (process is as schemed Shown in 5):

Step 501, the user equipment receives the first control instruction that macro base station is sent, and receives macro base station and small base station The downlink data of transmission；

Step 502, the user equipment determines the corresponding macro base station and the small base according to first control instruction The the first downstream feedback time slot and the second downstream feedback time slot stood；

Step 503, the user equipment will be described using the first downstream feedback time slot and the second downstream feedback time slot The feedback information of downlink data is fed back respectively to the macro base station and the small base station.

In addition, being also possible to FDD mode because the macro base station and small base station can be TDD mode and work and working, work as base When station thinks that FDD mode works, because frequency point used in macro base station and small base station is not identical, UE is in order to different bases Stand interaction need switch between different frequency points, so when the macro base station and small base station respectively with FDD mode of operation when, If UE sends the uplink feedback for being directed to two base stations, RF rf chain is needed to be moved to another frequency point (i.e. RF by a frequency point Retuning), because due to the limitation of rf chain component when RF retuning occurs, cannot accomplish immediately in new frequency It works on point, centre will appear certain switching time.So when the macro base station and small base station are respectively all with FDD working method When work, then the macro base station and small base station of working as is respectively with FDD mode of operation, this method further include:

The UE of the non-CA traditional for one can only the same site link, two RF work respectively in uplink and downlink, Under FDD network, because uplink and downlink is different frequency point, it is therefore desirable to uplink RF and downlink RF are worked at the same time, however in TDD net Under network, when uplink RF work when, downlink RF be it is idle, when downlink RF work when, uplink RF is idle.In order to The utilization rate for improving user equipment RF can enable idle RF under TDD network, in the case where idle RF is enabled, use Family equipment can then regard tool as, and there are two the equipment of downlink RF, so macro base station and small base can be received two RF respectively Stand send downlink data.So, when only one downlink radio frequency chain of the user equipment, this method is also wrapped under TDD network It includes:

User equipment receives second control instruction that macro base station is sent, and according to second control instruction using upper Row RF receives the downlink data that the small base station is sent in the position of the sub-frame of uplink collection, and concentrated in the sub-frame of uplink The last one subframe switches back into uplink RF.

In method provided by the embodiment of the present invention, when work mentions simultaneously for UE in the macro base station of different frequency and small base station For service when, user equipment (UE) in order to reasonable utilization itself rf chain resource, by unique upstream radio-frequency chain not Switch between same base station, the feedback information of the data so as to send macro base station and small base station is corresponding to feed back to macro base It stands and small base station.

In order to become apparent from method provided by the detailed description embodiment of the present invention, following with LTE provided by table 1 Uplink-downlink configuration in TDD system is provided for the embodiments of the invention method and is described further, specifically:

The first situation: Macro eNB and Small eNB are respectively with TDD mode of operation；UE there are two downlink RF and One uplink RF；Macro eNB and Small eNB work in different frequency；And UE uses uplink-downlink configuration Class1；Then originally The specific implementation of method provided by inventive embodiments includes:

Macro cell and Small cell are configured with TDD on the frequency point respectively to work send downlink data, UE respectively The data of two base stations can be normally received by two downlink RF；Then due to the RF rf chain of only one uplink of UE, by Reached simultaneously in downlink data, UE can not according to the timing of HARQ RTT timer that tradition uses simultaneously to Macro cell and Small cell is fed back, so needing to determine UE for the macro base of uplink feedback using method provided by the embodiment of the present invention It stands and the subframe of small base station, specific implementation are as follows:

The uplink RF resource of UE is distributed into Macro cell or Small cell according to the time, in downstream arrangements type In 1, one includes in the radio frames of 10 subframes, and there are two sub-frame of uplink collection, and the first subframe collection includes subframe 2,3；Second son Frame collection includes subframe 7,8.So macro base station and small base station can coordinate using the two subframe collection, so in reality in this example It applies in example, macro base station determines after the time interval between the first subframe collection and the second sub-frame set, so that it may according to the time It is spaced the HARQ RTT timer for determining itself and small base station.Then in this embodiment, macro base station and small base station use a nothing The specific implementation of line frame may is that

As shown in fig. 6, for 2；The uplink RF of 3 work song frames (i.e. the first subframe collection), UE works where small cell Frequency point, the ACK/NACK of the downlink data for feeding back Small cell.For 7；8 work song frames (i.e. the second subframe collection), UE Uplink RF work in the frequency point where Macro cell, the ACK/NACK of the downlink data for feeding back Macro cell.

When UE terminates (next subframe is downlink subframe) in sub-frame of uplink, the RF of UE requires transformation into Macro cell institute Frequency point, i.e. RF Retuning.

Second situation: Macro eNB and Small eNB are respectively with FDD mode of operation；UE there are two downlink RF With a uplink RF；Macro eNB and Small eNB be work on a different frequency.

As shown in fig. 7, because when Macro eNB and Small eNB respectively with FDD mode of operation when, network side Macro eNB and Small eNB negotiate the time of UE RF Retuning, and network needs to be handed down to UE about RF Retuning Time.In this embodiment, because Macro eNB and Small eNB are respectively with FDD mode of operation, in correspondence There is no need to consider the occupied subframe of downlink data for row rf chain, it is only necessary to determine upstream radio-frequency chain is switched to different bases When standing, the time of the RF Retuning of appearance.As shown in fig. 7, indicating the downlink of Macro eNB in the first row；Second row For the downlink of Small eNB；The third line is the distribution condition of UE uplink, so in this embodiment, in UE uplink Subframe between the first subframe collection (N, N+1, N+2, N+3) and the second subframe collection (N+5, N+6, N+7, N+8) of one radio frames (N+4) it is used to realize RF Retuning.So if the first subframe collection UE carries out the downstream feedback of macro base station, the second subframe Collection carries out the downstream feedback of small base station.

The third situation: Macro eNB and Small eNB are respectively with TDD mode of operation；UE have a downlink RF and One uplink RF；Macro eNB and Small eNB be work on a different frequency；And UE uses uplink-downlink configuration Class1； The then specific implementation of method provided by the embodiment of the present invention includes:

The UE of the non-CA traditional for one can only the same site link, two RF work respectively in uplink and downlink, Under FDD network, because uplink and downlink is different frequency point, it is therefore desirable to uplink RF and downlink RF are worked at the same time, however in TDD net Under network, when uplink RF work when, downlink RF be it is idle, when downlink RF work when, uplink RF is idle.

In double linked networks, since a UE can there are two stations to service simultaneously for it, for only one uplink and The UE of one downlink RF makes full use of idle RF, when Macro cell and the Small cell of double linked networks are TDD moulds Formula can obtain double linked networks in handling capacity using the uplink and downlink rf chain of UE using method provided by the embodiment of the present invention On gain.Specific implementation may is that

As shown in figure 8, under Macro cell and Small cell are sent respectively on the frequency point respectively to work with TDD configuration Row data.

If current subframe is downlink subframe, the downlink RF of UE receives the data from Macro cell, the uplink RF of UE It works and is also used for this when receiving data, receive the downlink data from small cell.

If current subframe is sub-frame of uplink, the downlink RF of UE works by RF retuning upper where Macro Line frequency point, as shown in figure 8,0；The downlink RF of 1 subframe UE receives the downlink data of Macro cell, for 2；3 work song frame UE Downlink RF become uplink mode, for feeding back downlink data and transmission uplink service.

Using identical method, the uplink RF of UE, 0；1；4；5；6；For receiving under Small cell on 9 work song frames Row data, for 2；3；7；The uplink RF of 8 work song frame UE is for feeding back and transmitting uplink service.

Another problem is hardware uplink and downlink conversion operation (RF retuning is identified as in figure), when the downlink RF of UE exists 0；When work on 1 work song frame, 2；3 work song frames need work in uplink mode, can since RF is become uplink by downlink The operation (similar RF retuning) of hardware can be needed, network side needs to configure conversion operation.

In scheme provided by the invention, when work is when the macro base station of different frequency and small base station provide service simultaneously for UE It waits, base station provided by the embodiment of the present invention can determine the sub-frame of uplink collection in one or continuous two radio frames, so Multiple sub-frame of uplink collection are reasonably distributed into macro base station either small base station afterwards, so that macro base station and small base station can be Under the premise of not conflicting, service is provided to UE.So scheme provided by the present invention can make only to be provided with a upstream radio-frequency The UE (sending the UE received and single-shot list is received including single-shot) of chain can enjoy the gain of double linked networks more.

It is apparent to those skilled in the art that for convenience and simplicity of description, only with above-mentioned each function The division progress of module can according to need and for example, in practical application by above-mentioned function distribution by different function moulds Block is completed, i.e., the internal structure of device is divided into different functional modules, to complete all or part of function described above Energy.The specific work process of the system, apparatus, and unit of foregoing description, can be with reference to corresponding in preceding method embodiment Journey, details are not described herein.

In several embodiments provided herein, it should be understood that disclosed system, device and method can be with It realizes by another way.For example, the apparatus embodiments described above are merely exemplary, for example, the module or The division of unit, only a kind of logical function partition, there may be another division manner in actual implementation, such as multiple units Or component can be combined or can be integrated into another system, or some features can be ignored or not executed.Another point, institute Display or the mutual coupling, direct-coupling or communication connection discussed can be through some interfaces, device or unit Indirect coupling or communication connection can be electrical property, mechanical or other forms.

The unit as illustrated by the separation member may or may not be physically separated, aobvious as unit The component shown may or may not be physical unit, it can and it is in one place, or may be distributed over multiple In network unit.It can select some or all of unit therein according to the actual needs to realize the mesh of this embodiment scheme 's.

It, can also be in addition, each functional unit in each embodiment of the application can integrate in one processing unit It is that each unit physically exists alone, can also be integrated in one unit with two or more units.Above-mentioned integrated list Member both can take the form of hardware realization, can also realize in the form of software functional units.

If the integrated unit is realized in the form of SFU software functional unit and sells or use as independent product When, it can store in a computer readable storage medium.Based on this understanding, the technical solution of the application is substantially The all or part of the part that contributes to existing technology or the technical solution can be in the form of software products in other words It embodies, which is stored in a storage medium, including some instructions are used so that a computer It is each that equipment (can be personal computer, server or the network equipment etc.) or processor (processor) execute the application The all or part of the steps of embodiment the method.And storage medium above-mentioned includes: USB flash disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), magnetic or disk Etc. the various media that can store program code.

The above, above embodiments are only described in detail to the technical solution to the application, but the above implementation The explanation of example is merely used to help understand method and its core concept of the invention, should not be construed as limiting the invention.This In the technical scope disclosed by the present invention, any changes or substitutions that can be easily thought of by those skilled in the art, should all cover Within protection scope of the present invention.

Claims

1. a kind of macro base station, which is characterized in that the user that the macro base station is only one upstream radio-frequency chain RF with small base station The serving BS of equipment UE, and the macro base station and small base station operation in different frequency, then the macro base station includes:

Slot time determination unit, for determining any two neighboring upstream in radio frames according to determining proportional arrangement type The number of special subframe and downlink subframe between frame collection determines described appoint according to the number of the special subframe and downlink subframe The interval time anticipated between two neighboring upstream subframe collection；Wherein, the sub-frame of uplink collection is by a sub-frame of uplink or multiple companies Continuous sub-frame of uplink composition；

Feedback slot coordination unit, for according to the interval time from the determination sub-frame of uplink collection in radio frames as macro base station The corresponding second downstream feedback time slot of corresponding first downstream feedback time slot and the small base station, wherein first downlink is anti- It presents and is spaced an interval time between time slot and the second downstream feedback time slot；

First instruction process unit refers to for generating the first control according to the first downstream feedback time slot and the second downstream feedback time slot It enables, and sends the small base station for first control instruction, wherein first control instruction is used for small base station and macro base station The uplink feedback of the UE is received in different sub-frame of uplink collection.

2. macro base station as described in claim 1, which is characterized in that when the macro base station and small base station are respectively with frequency division duplex FDD mode of operation, the feedback slot coordination unit determine the interval time be RF retuning RF retuning when Between.

3. macro base station as described in claim 1, which is characterized in that when only one downlink radio frequency chain of the UE, when described macro Base station and small base station are respectively with Time Division Duplex TDD mode of operation, then the macro base station further include:

Number of sub-frames determination unit, for determining position and the institute of the downlink subframe collection of the UE according to the proportional arrangement type State the number of sub-frames of downlink subframe concentration；

Second instruction process unit, the number of sub-frames for including when determining each sub-frame of uplink collection is not less than 2, under described The number of sub-frames that row subframe collection position and the downlink subframe are concentrated generates the second control instruction, and by second control instruction It is sent to the UE and the small base station, second control instruction is used to indicate the small base station and sends downlink in downlink subframe Data；And indicate that the UE receives the downlink data that the small base station is sent in the position of the downlink subframe using uplink RF, And uplink RF is switched back into the last one subframe of sub-frame of uplink concentration and special subframe.

4. macro base station as claimed in claim 3, which is characterized in that second instruction process unit is also used for broadcast and disappears One of breath, radio resource control RRC signaling, media access control layer control unit MACCE or physical layer command or Second control instruction is sent to the UE and the small base station by the combination of various ways.

5. the macro base station as described in Claims 1 to 4 is any, which is characterized in that the institute that first instruction process unit is sent State the two-way time intervalometer HARQ RTT of the hybrid automatic repeat-request in the first control instruction including the macro base station Timer, so that the small base station receives the HARQ RTT that itself is arranged after the HARQ RTT timer of the macro base station timer。

6. a kind of user equipment, which is characterized in that the user equipment is the user equipment for being only provided with a upstream radio-frequency chain, The user equipment includes:

Receiving module receives the first control instruction that macro base station is sent, and receives the downlink data of macro base station and the transmission of small base station；

Feedback slot determination unit, for determining the corresponding macro base station and the small base station according to first control instruction First downstream feedback time slot and the second downstream feedback time slot, wherein the first downstream feedback time slot and second downlink are anti- It presents and is spaced an interval time between time slot；

Sending module, for utilizing the first downstream feedback time slot and the second downstream feedback time slot by the anti-of the downlink data Feedforward information is fed back respectively to the macro base station and the small base station.

7. user equipment as claimed in claim 6, which is characterized in that when the macro base station and small base station are worked respectively with FDD Mode works, then the sending module is also used in the interval time between the first downstream feedback time slot and the second downstream feedback time slot Carry out RF retuning RF retuning.

8. user equipment as claimed in claim 6, which is characterized in that when only one downlink radio frequency chain of the user equipment, Then the receiving module is also used to after receiving the second control instruction, is existed according to second control instruction using uplink RF The position of downlink subframe receives the downlink data that the small base station is sent, and in the last one subframe of the sub-frame of uplink collection or Special subframe switches back into uplink RF.

9. a kind of injection frequency UE radio frequency resource distribution method, which is characterized in that when macro base station and small base station are one on only one The serving BS of the user equipment (UE) of row rf chain RF, and the macro base station and small base station operation be in different frequency, then this method Include:

The macro base station determines in radio frames between any two neighboring upstream subframe collection according to determining proportional arrangement type The number of special subframe and downlink subframe determines that any two are adjacent according to the number of the special subframe and downlink subframe Interval time between sub-frame of uplink collection；Wherein, the sub-frame of uplink collection is by a sub-frame of uplink or multiple continuous uplink Frame composition；

The macro base station is according to the interval time from the determination sub-frame of uplink collection in radio frames as macro base station corresponding first The corresponding second downstream feedback time slot of downstream feedback time slot and the small base station, wherein the first downstream feedback time slot and institute State one interval time of interval between the second downstream feedback time slot；

The macro base station generates the first control instruction according to the first downstream feedback time slot and the second downstream feedback time slot, and by this One control instruction is sent to the small base station, wherein first control instruction is for small base station and macro base station in different uplinks Subframe collection receives the uplink feedback of the UE.

10. method as claimed in claim 9, which is characterized in that when the macro base station and small base station are respectively with FDD working method Work, the macro base station determine that the interval time is the time of RF retuning RF retuning.

11. method as claimed in claim 9, which is characterized in that when only one downlink radio frequency chain of the UE, then method is also wrapped It includes:

The macro base station according to the proportional arrangement type determine the UE downlink subframe collection position and the downlink subframe The number of sub-frames of concentration；

The macro base station is not less than 2 when the number of sub-frames that determining each sub-frame of uplink collection includes, according to downlink subframe collection position It sets the number of sub-frames concentrated with the downlink subframe and generates the second control instruction, and send second control instruction to described UE and the small base station, second control instruction are used to indicate the small base station and send downlink data in downlink subframe；And refer to Show that the UE receives the downlink data that the small base station is sent in the position of the downlink subframe using uplink RF, and on described The last one subframe and special subframe that row subframe is concentrated switch back into uplink RF.

12. method as claimed in claim 11, which is characterized in that second control instruction is sent to the UE and described small Base station includes:

It is ordered by broadcast message, radio resource control RRC signaling, media access control layer control unit MACCE or physical layer The combination of one or more of order mode, is sent to the UE and the small base station for second control instruction.

13. the method as described in claim 9~12 is any, which is characterized in that include described macro in first control instruction The two-way time intervalometer HARQ RTT timer of the hybrid automatic repeat-request of base station, so that the small base station receives The HARQ RTT timer of itself is set after the HARQ RTT timer of the macro base station.

14. a kind of injection frequency application method, which is characterized in that this method comprises:

User equipment receives the first control instruction that macro base station is sent, and receives the downlink data of macro base station and the transmission of small base station, Wherein, the user equipment is the user equipment for being only provided with a upstream radio-frequency chain；

The user equipment determines the first downlink of the corresponding macro base station and the small base station according to first control instruction Feedback slot and the second downstream feedback time slot, wherein the first downstream feedback time slot and the second downstream feedback time slot it Between be spaced an interval time；

The user equipment utilizes the first downstream feedback time slot and the second downstream feedback time slot by the anti-of the downlink data Feedforward information is fed back respectively to the macro base station and the small base station.

15. method as claimed in claim 14, which is characterized in that when the macro base station and small base station are respectively with the work side FDD Formula work, this method further include:

Interval time of the user equipment between the first downstream feedback time slot and the second downstream feedback time slot carries out RF readjustment Humorous RF retuning.

16. method as claimed in claim 14, which is characterized in that as the user equipment only one downlink radio frequency chain RF, This method further include:

After receiving the second control instruction that the macro base station is sent, existed according to second control instruction using uplink RF The position of downlink subframe receives the downlink data that the small base station is sent, and in the last one subframe of the sub-frame of uplink collection or Special subframe switches back into uplink RF.