CN103918321B

CN103918321B - Power adjusting in interband carrier aggregation

Info

Publication number: CN103918321B
Application number: CN201280053674.7A
Authority: CN
Inventors: J·考科维奥里; A·伊莫南; T·恩托南
Original assignee: Millet Ltd Hong Kong Co
Current assignee: Millet Limited Hong Kong Company
Priority date: 2011-11-01
Filing date: 2012-10-30
Publication date: 2018-02-02
Anticipated expiration: 2032-10-30
Also published as: CN103918321A; DE112012004583B4; WO2013064980A1; DE112012004583T5

Abstract

Describe a kind of for preventing the method that interference is received as caused by interband CA.This method, which includes receiving, is used in first band and second band the instruction of operation simultaneously.First MPR is associated with first band and the 2nd MPR is associated with second band.Operation can cause desensitization while in response to determining in first band and second band, select power adjustment.Power adjustment includes the 2nd A MPR for the first A MPR of first band and/or for second band.In response to determining that device can operate in first band and second band in application power adjustment, adjusts using power simultaneously.Also describe a kind of equipment and computer-readable medium.

Description

Power adjusting in interband carrier aggregation

Technical field

The exemplary, non-limitative embodiment of the present invention relates generally to wireless communication system, method, apparatus and calculating Machine program, relates more specifically to interband carrier aggregation.

Background technology

The following abbreviation that can be found in specification and/or accompanying drawing is defined as follows：

1xRTT CDMA2000 1X(IS-2000)

3GPP third generation partner programs

ACLR adjacent channel leakages ratio

A-MPR addictive maximum powers reduce

BW bandwidth

CA carrier aggregations

CC component carriers

CDMA CDMAs

CE control elements

DL downlinks (eNB to UE)

ENB E-UTRAN nodes B (enode b)

E-UTRAN evolution UTRAN (LTE)

IMT-A IMT-Advanceds

ITU International Telecommunication Union

ITU-R ITU radio communication groups

LTE UTRAN Long Term Evolution (E-UTRAN)

The evolution of LTE-A Long Term Evolutions

MAC medium access control (layer 2, L2)

MME mobility management entity

MPR peak powers reduce

NCE network control elements

Node B base stations

NS network signals

NW networks

PDA personal digital assistants

PHR power headroom

P-MPR power managements peak power reduces

RF radio frequencies

RTT two-way times

RX receivers

SGW gateways

TX emitters

UE user equipmenies, such as mobile station or mobile terminal

UL up-links (UE to eNB)

UTRAN universal terrestrial access networks

Such as defined in 3GPP TR 36.913, LTE-A should with including the frequency spectrum distribution than Rel-8 LTE (as most Up to 100MHz) the different size of frequency spectrum of broader frequency spectrum distribution distributed to operate to realize for high mobility 100Mbit/s and 1Gbit/s for Hypomobility peak data rate.Everybody unanimously accepts, and will consider to carry Ripple polymerize for LTE-A to support the bandwidth more than 20MHz.Consideration wherein will enter to two or more component carriers (CC) The carrier aggregation (CA) of row polymerization is used for LTE-A to support the transmission bandwidth more than 20MHz.Carrier aggregation can be continuous It is or discrete.Compared with the non-polymeric operation in LTE Rel-8, this technology can be in peak-data as bandwidth expansion Significant gain is provided in terms of speed and cell throughout.

LTE-A terminal of the receiving ability more than 20MHz can receive transmission simultaneously on multiple component carriers.LTE Rel- 8 terminals can only receive transmission on single component carrier, as long as the structure of the component carrier follows Rel-8 specifications.In addition, just Rel-8 LTE terminals be able to should operate in lte-a system and LTE-A terminals be able to should be grasped in Rel-8LTE systems For the meaning of work, it is desirable to which LTE-A should be with Rel-8LTE backward compatibility.

Fig. 1 shows the example of carrier aggregation, and wherein M Rel-8 component carrier is grouped together to form M × Rel- 8BW (for example, giving M=5 then 5 × 20MHz=100MHz).Reception/the transmission on one-component carrier wave of Rel-8 terminals, and LTE-A terminals can be received/sent to realize the higher handling capacity of whole bandwidth simultaneously on multiple component carriers.

Further referring to carrier aggregation, it implies that an eNB can be on more than one CC (frequency carrier) effectively comprising more In a cell, and eNB can be utilized when distributing resource and scheduling UE it is one (such as in E-UTRAN Rel-8) or multiple Cell (with polymerization methodses).

In current 3GPP LTE specifications, there is the specific network signal of frequency band (NS) for each 3GPP LTE frequency bands Value, such as, it is allowed to addictive maximum power reduce (A-MPR) value.Defined in some cases for example for the A-MPR of frequency band When being transmitted on the frequency band, UE needs that how much power reduced from its maximum power.Showed in TS36.101 table 6.2.4-1 Different NS values and relevant A-MPR regulation.Referring also to：3GPP TS36.101V10.3.0 (2011-06), " 3rd Generation Partnership Project；Technical Specification Group Radio Access Network；Evolved Universal Terrestrial Radio Access(E-UTRA)；User Equipment(UE) Radio transmission and reception (Release10) ", entire contents are incorporated by reference into herein.

These NS values are given for single band operation and disclosure satisfy that 3GPP, supervision ACLR and spectral emission requirements Mode define UE behavior.Under current rule, if some frequency band is disposed or in the process disposed In, then NS values can not change.It is thus impossible to add any new NS values to frequency band.In order to introduce new NS values, it is necessary to define new Frequency band, and this is not desired selection.

Interband carrier aggregation (CA) is described in Rel-10/11.In interband CA, terminal (such as UE) is at two or more Operated simultaneously on frequency band.However, in the case where some frequency bands combine, can due to operation while on more than one frequency band Some harmonic distortion problems and intermodulation issues can be caused.If harmonic component and intermodulation component influence on the receiving band, can The desensitization of receiver can be caused.In the case of some interbands CA, the second harmonic of emitter and/or three order harmonic components influence Another receiver frequency band.

Fig. 2 and Fig. 3 illustrates the example of harmonic wave interference and Intermodulation Interference.In fig. 2, three ranks of frequency band 17 (B17) transmission Harmonic component influences the reception of frequency band 4 (B4).In figure 3, frequency band 13 (B13) and three order harmonic components of frequency band 5 (B5) transmission Influence the receiver of frequency band 13.

, can be specific to redefine NS frequency bands in a manner of causing operation to meet to require in single band LTE operation NS values.However, interband CA operation is the evolutionary step from single band operation.

In switching, NS values can be sent to neighbouring secondary cell (SCell) by signaling, when using carrier aggregation Main plot (PCell) is sent to by signaling.PCell and SCell is the agreement for the certain components carrier wave being related in CA.Pass through The new NS values that signaling sends PCell allow the network to directly change the NS values that UE is used.However, such technology is given Network brings extra bearing and need more expenses to be used for relevant signaling and sent.

Another power reduction method is that power management peak power reduces (P-MPR).In P-MPR, dual mode device (example Such as use 1xRTT and LTE device) its UL power can be reduced so that and two radio still can continue to operate.Due to nothing Line electricity independently of one another, if so transmitting mask in some frequency band operations, they may cause problem.For example, 1xRTT is wireless Electricity may have ongoing audio call, and LTE radio may have data transmission., can in order to carry out two operations With using P-MPR.As application P-MPR, a kind of mechanism, wherein UE (examples be present in power headroom (PHR) report in Rel-10 Such as pass through position) point out that therefore UE has reduced peak power due to P-MPR in the PHR reports sent.This causes ENB understand that the second radio causes the unexpected decline of UE maximum UL power.

The content of the invention

Following Summary is only intended to be exemplary and nonrestrictive.

By using the illustrative embodiments of the present invention, problem above and other problemses are overcome, it is excellent to realize other Point.

At it in a first aspect, illustrative embodiments provide it is a kind of be used for prevent as caused by interband CA receive interference Method.This method includes：Receive in first band and second band and meanwhile operation instruction.The frequencies of first MPR and first Band is associated and the 2nd MPR is associated with second band.This method also includes：Determine same in first band and second band When operation whether can cause the desensitization at least one frequency acceptance band.It is same in first band and second band in response to determining When operation can cause desensitization, select power adjustment.Power adjustment includes being used for the first A-MPR of first band and/or is used for 2nd A-MPR of second band.This method includes：It is determined that whether device can be in first band and the in application power adjustment Operated simultaneously on two frequency bands.In response to determining that device can be in first band and second band simultaneously in application power adjustment Operation, adjusted using the power.

At its another aspect, illustrative embodiments provide a kind of for preventing from receiving interference as caused by interband CA Equipment.The equipment includes processing system, and processing system may be embodied as at least one processor and comprising computer program code At least one memory.The processing system is arranged such that the equipment can be received in first band and second band The instruction of upper operation simultaneously.First MPR is associated with first band and the 2nd MPR is associated with second band.Processing system It is also arranged such that whether operation can cause at least one while the equipment can determine in first band and second band Desensitization in individual frequency acceptance band.Operation can cause desensitization while in response to determining in first band and second band, select work( Rate adjusts.Power adjustment includes the 2nd A-MPR for the first A-MPR of first band and/or for second band.At this Reason system is also arranged such that the equipment determines whether device can be in first band and the second frequency in application power adjustment Take while operate.In response to determining that the device can be grasped in first band and second band in application power adjustment simultaneously Make, processing system is arranged such that equipment application power adjustment.

In its another aspect, illustrative embodiments provide a kind of for preventing from receiving interference as caused by interband CA Computer-readable medium.The computer-readable medium includes instruction set, and the instruction set by computing device when being performed so that calculating Device receive in first band and second band and meanwhile operation instruction.First MPR it is associated with first band and 2nd MPR is associated with second band.The instruction set is grasped while computing device is determined in first band and second band Whether work can cause the desensitization at least one frequency acceptance band.Grasped while in response to determining in first band and second band Work can cause desensitization, and the instruction set causes computing device selection power adjustment.Power adjustment includes for first band One A-MPR and/or the 2nd A-MPR for second band.The instruction set also causes computing device to determine to adjust in application power When computing device whether can be operated simultaneously in first band and second band.In response to determining to count in application power adjustment Calculating device can operate simultaneously in first band and second band, be adjusted using the power.

In at least some embodiments, said apparatus includes user equipment.

Brief description of the drawings

When being read in conjunction with the figure, below illustrative embodiments of the invention in " embodiment " more than and its Its aspect can become apparent from, in the accompanying drawings：

Fig. 1 shows the example for the carrier aggregation for being proposed for lte-a system.

Fig. 2 and Fig. 3 illustrates the example of harmonic wave interference and Intermodulation Interference.

Fig. 4 shows the simplification frame of the exemplary electronic device of the various illustrative embodiments suitable for the practice present invention Figure.

Fig. 5 and Fig. 6 is that the triggering for the harmonic problem for each illustrating the various illustrative embodiments according to the present invention is selected The logical flow chart of item.

Fig. 7 be a diagram that the logic flow of the triggering option of the intermodulation issues of the various illustrative embodiments according to the present invention Cheng Tu.

Fig. 8 show according to the present invention various illustrative embodiments harmonic wave in the case of judgement example simplification Figure.

Fig. 9 shows the simplification of the judgement example in the case of the intermodulation according to the various illustrative embodiments of the present invention Figure.

Figure 10 be a diagram that the operation of the illustrative methods of the various illustrative embodiments according to the present invention and calculate The logical flow chart of the implementing result for the computer program instructions implemented on machine computer-readable recording medium.

Embodiment

, can will be bigger than those set by 3GPP NS values in order to solve harmonic distortion problems and intermodulation issues A-MPR is used for wherein one or more operational frequency bands.According to the various illustrative embodiments of the present invention when using interband CA Additional A-MPR is added in (such as by 3GPP standard settings) setting A-MPR values of either of which operational frequency bands.Power is adjusted Whole to be carried out in the case of no complementary network signaling inside device, this avoids the change to NS value signalings and kept away Exempted from (such as in a standard) create new NS values.

As used below, " addition A-MPR " mean routine A-MPR values on addition add A-MPR (such as 3GPP NS values).

Before the various illustrative embodiments of the present invention are described in further detail, reference picture 4 is applied in fact with illustrating Trample the various electronic installations of illustrative embodiments and the simplified block diagram of equipment of the present invention.

In Fig. 4 wireless system 430, wireless network 435 is adapted to by Radio Link 432 via network access Node such as node B (base station), more specifically eNB420 lead to can such as be referred to as UE410 mobile communications device with equipment Letter.Network 435 can include network control element (NCE) 440, NCE440 can include Fig. 4 shown in MME/SGW functions and Connection with network such as telephone network and/or data communication network (such as internet 438) is provided.

UE410 includes：Controller such as computer or data processor (DP) 414, it is embodied as storing computer instruction journey The computer-readable recording medium of the memory (MEM) 416 of sequence (PROG) 418 and for via one or more antennas come Suitable wave point such as radio frequency (RF) transceiver 412 of two-way wireless communication is carried out with eNB420.

ENB420 also includes：Controller such as computer or data processor (DP) 424, it is embodied as storing computer instruction The computer-readable recording medium of the memory (MEM) 426 of program (PROG) 428 and for via one or more antennas Come the suitable wave point such as RF transceivers 422 to be communicated with UE410.ENB420 couples via data/control path 434 To NCE440.Path 434 can be implemented as the S1 interfaces shown in Fig. 4.ENB420 can also be via the coupling of data/control path 436 Another eNB is bonded to, data/control path 436 can be implemented as the X2 interface shown in Fig. 4.

NCE440 includes：Controller such as computer or data processor (DP) 444, it is embodied as storing computer instruction journey The computer-readable recording medium of the memory (MEM) 446 of sequence (PROG) 448.

It is it is assumed that at least one including following programmed instruction in PROG418,428 and 448：The programmed instruction is by being associated DP perform when the device is operated according to an illustrative embodiment of the invention, this will be described in greater detail below.

That is, the present invention various illustrative embodiments can at least partly by can by UE410 DP414, DP424 by the eNB420, and/or DP444 by NCE440 or by hardware or the group by software and hardware (and firmware) The computer software performed is closed to realize.

UE410 and eNB420 can also include application specific processor, such as CA processors 415 and CA processors 425.

In a word, UE410 various embodiments can include but is not limited to mobile phone, have the flat board electricity of wireless communication ability Brain, the portable computer with wireless communication ability, figure the acquisition equipment such as digital camera with wireless communication ability, Game device with wireless communication ability, the music storage with wireless communication ability and broadcasting device, permission are wireless interconnected Net the Internet appliances for accessing and browsing and incorporate the portable unit or terminal of the combination of such function.

Computer-readable MEM416,426 and 446 can be suitable for any types of local technical environment, and can be with Use any suitable the data storage technology such as storage device based on semiconductor, flash memory, magnetic memory apparatus and system, optics Storage device and system, read-only storage and removable memory are realized.As non-limiting example, DP414,424 and 444 Any types of local technical environment can be suitable for, and all-purpose computer, special-purpose computer, microprocessor can be included One or more of device, digital signal processor (DSP) and processor based on polycaryon processor framework.Wave point (such as RF transceivers 412 and 422) can be suitable for any types of local technical environment, and can be using any suitable The communication technology as single emitter, receiver, transceiver or the combination of part realize.

Each 3GPP LTE frequency bands have the specific NS values of frequency band, such as, it is allowed to A-MPR values.In all expectation frequencies In the case that only these NS values are applied in combination in band, interband CA cannot be operated.This is due to intermodulation product harmonic product.Can be with There is provided with the combination of some frequency band and required A-MPR to UE on the information of harmonic problem and/or intermodulation issues to solve Problem.It can be asked for giving the frequency band combination of each support in operational frequency range to calculate harmonic problem and/or intermodulation Both topics.This information can be stored in the database in UE memory or table (such as MEM416).

Interband CA activation before, the first 3GPP LTE frequency bands can be it is effective and according to the specific NS values of frequency band come Operation.When interband CA is activated, the 2nd 3GPP LTE frequency bands are activated and operated according to the specific NS values of its frequency band.Second The activation of frequency band can be used for starting trigger event.If the second band being activated causes harmonic problem, second band Activation can be used as trigger.If the first effective band causes harmonic problem, (such as wherein it is assumed that interband CA uses institute The NS values used), then trigger can be the first effective band, and trigger event can open when second band is activated It is dynamic.In the case of intermodulation issues, problem is caused by two frequency bands.Contribution of each of which for intermodulation product can be in frequency With power level known in the case of calculate/estimate.In the case of intermodulation, the activation of second band is as trigger.

A-MPR addition can be performed by some approach.The first approach is when second band is first activated The additional A-MPR of addition, then during operation if the DL mass of impacted frequency band is enough, then reduces added A-MPR. Alternatively, UE can simply add additional A-MPR and not be adjusted automatically during operation.

Figure, RF bandwidth, reference sensitivity can be launched by using output power of transmitter, before and after CA is started Received signal strength estimation is detected, and compares received signal strength estimation and received signal quality etc., it is estimated to calculate Additional A-MPR values.It can also estimate additionally in the case of known to the level difference of three order harmonic component power and TX power A-MPR coarse value.If harmonic problem is due to second band, the A-MPR of second band can be increased without changing the The A-MPR of one frequency band.If harmonic problem is due to first band, increase the A-MPR of first band without changing the second frequency The A-MPR of band.In a word, the only one in interband CA frequency bands needs to add A-MPR.

In intermodulation issues, A-MPR can be added to any one in two frequency bands, or the A-MPR can pass through certain Kind algorithm divides between two frequency bands.The detection of demand to adding A-MPR can be carried out inside UE, need not in network Other complexity.

In addition, if additional A-MPR can shift UE onto outside the overlay area of impacted frequency band, then UE can be to eNB Send triggering message.For example it is assumed that UE operates with peak power, it in next PHR reports or can pass through list Adjustment of only signaling as pointed out A-MPR using MAC control elements (CE) message.This can cause eNB to carry out appropriate action, Such as forbid component carrier with so that more power can be used in UL transmission.

Power headroom (PHR) may also be used for eNB signalings notice UE by reuse P-MPR indicating bits come Use ancillary relief.PHR reports can point out the P-MPR being used to eNB, even if will be made due to CA operational frequency bands Reduced with power.This can utilize existing signaling and can allow the signaling of backward compatibility.

Finally, even if eNB gives an order, UE can also select without retune (such as by do not activate second frequency Band).UE can refuse the configuration and point out the refusal to eNB and be continuing with first configuration.

Fig. 5 and Fig. 6 is that the triggering of the various harmonic problems for illustrating the various illustrative embodiments according to the present invention is selected The logical flow chart of item.This method includes trigger method and decision scheme.

In Figure 5, the activation of service band 4 is tuned without changing NS as trigger to the A-MPR of frequency band 17 Value.Pay attention to, " zdB " is not necessarily derived from any 3GPP tables；It can be calculated by UE.It will be added to existing 3GPP In A-MPR values.It therefore, there is no need to new NS.It it is the judgement stage after the triggering stage, wherein device is pointed out if A-MPR increases Whether zdB it still can operate.For example, if cell edges of the UE in frequency band 17, can't stand extra A-MPR, because For this UE can be caused to be exited from the cell of frequency band 17.

In figure 6, effective band 4 is used as trigger to introduce more A- to frequency band 17 in the rear of the activation of frequency band 4 MPR.In the judgement stage, UE determines whether it still can operate if A-MPR increases zdB.

If zdB can not be added to A-MPR, UE instead can switch to 1UL+2DL interbands from 2UL+2DL interbands CA CA (for example, by being transmitted on the frequency band not cause another frequency acceptance band the problem of).In the situation of the frequency band 17 of frequency band 4/ Under, UL can only be operated on band 4.Even in the case of only one UL, CA use can be favourable, because communication Amount is typically asymmetric, such as wherein DL is than more data being present in UL.If there is no service band in interband CA 17UL, then it there is usually no harmonic problem.

If network (NW) does not allow to switch to 1UL+2DL patterns, UE can make the output of " undesired " UL carrier waves Power is reduced to its minimum output power level.This can cause the eNB on the carrier wave discontinuously to transmit.

Fig. 7 be a diagram that the logic flow of the triggering option of the intermodulation issues of the various illustrative embodiments according to the present invention Cheng Tu.Intermodulation is as caused by the mixing of two or more uplink features, and it causes to fall on the receiving band Frequency component.In the case of intermodulation, additional A-MPR can be added to any one in frequency band, or the additional A-MPR can Intelligently to separate among frequency bands.Influence to be at least from scrambling band to the parameter of the contribution amount of the intermodulation component of a frequency band Distance (TX frequency bands are nearer, and the contribution to intermodulation is higher) and TX bandwidth (BW is wider, and the contribution to intermodulation is higher).Required A-MPR amount depends on position and the scrambling band of the interference source relevant with the second interference source (aggressor).For example, can To carry out intelligent separation according to IMD formula.For example, in the case of third order intermodulation, compared with interference source farther out, more closely Twice of source contribution of interference intermodulation power.Therefore, add that A-MPR is more effective (and to be needed less to nearer interference source Additional A-MPR).

One of frequency band may be under the conditions of preferably (such as), wherein can more easily add away from cell edge farther out Add A-MPR.The device can point out wherein which frequency band can preferably be tolerated according to such as PHR reports or RX signal qualitys The A-MPR added.

Still can be for example based on when carrier aggregation be configured to the additional signaling of network side, eNB even if not using Included value (such as P_CMAX,c) reported according to next standard PHR to detect A-MPR change.

Fig. 8 show according to the present invention various illustrative embodiments harmonic wave in the case of judgement example simplification Figure.Show the example of frequency band 17 and the interband CA of the frequency band 4 judgement factors.The overlay area 3GPP of both frequency band 4 and frequency band 17 NS values (A-MPR of defined in 3GPP) are shown as shade circle.Two kinds of situations of UE positions are position 1 and 2.Add frequency band 17 Desired zdB extra A-MPR to alleviate the new area of coverage that harmonic problem causes the frequency band 17 with dashed lines labeled Domain.

If UE in position 1, can add zdB, because even after additions, UE is still in frequency band 17 to A-MPR New overlay area inside.Therefore, if it is desired to, 2UL+2DL interband CA is possible.Certainly, 1UL+2DL interband CA is also possible.

If UE in position 2, cannot add zdB to A-MPR, because after the addition, UE may be in the new of B17 The outside of overlay area.Therefore, 2UL+2DL interband CA cannot.However, 1UL+2DL interband CA is possible.

Fig. 9 shows the simplification of the judgement example in the case of the intermodulation according to the various illustrative embodiments of the present invention Figure.Show the example of frequency band 13 and the interband CA of the frequency band 5 judgement factors.The overlay area 3GPP of both frequency band 5 and frequency band 13 NS values (A-MPR of defined in 3GPP) are shown as shade circle.UE can be in position 1, position 2 and the position of position 3 three Any one at.Changed using the extra A-MPR of frequency band 15 and/or the desired zdB of frequency band 13 with alleviating harmonic problem The new overlay area of the frequency band.This adjusts the new overlay area with dashed lines labeled for causing frequency band 13 and frequency band 5.Can To add A-MPR to any frequency band.If desired, A-MPR additions then can also be intelligently separated among frequency bands.In this feelings Under condition, two frequency bands can obtain the A-MPR of some additions.

If UE in position 1, can add zdB, because even after the addition, UE is still to the A-MPR of frequency band 13 In the new overlay area of frequency band 13 and the inside of the overlay area of frequency band 5.Therefore, if it is desired to, 2UL+2DL interband CA is Can with.Certainly, 1UL+2DL interband CA is also possible.

Position 2 can be considered as the mirror image of position 1, and wherein UE can be in the new of another frequency band (frequency band 13 at position 2) Overlay area outside.If UE in position 2, can add zdB, because even in addition to the A-MPR of frequency band 5 Afterwards, UE is still in the new overlay area of frequency band 5 and the inside of the overlay area of frequency band 13.Therefore, if it is desired to, then 2UL+ 2DL interband CA is possible.In addition, 1UL+2DL interband CA is also possible.

If UE in position 3, cannot add A-MPR to any frequency band.After such addition, UE may passed through The outside of the new overlay area of the frequency band of adjustment.Therefore, 2UL+2DL interband CA cannot.However, 1UL+2DL Interband CA is still a kind of selection.

UE can also provide the additional A-MPR that signaling is being added with signaling notice network to network.If use P- MPR mechanism (therefore, PHR reports are arranged to UE), then the P positions in the additional A-MPR of application PHR being set to report. This can cause eNB is able to know that secondary power compensation is used.As defined in TS36.321 § 6.1.3.6a, P positions word Segment table shows whether UE due to power management applies power back-off.If because power management is without using power back-off, In corresponding PCMAX, in the case that c fields may have different value, UE sets P=1.Turning also now to 3GPP TS36.321V10.2.0(2011-06),“3rd Generation Partnership Project；Technical Specification Group Radio Access Network；Evolved Universal Terrestrial Radio Access(E-UTRA)；Medium Access Control (MAC) protocol specification (Release10) ", Entire contents are incorporated by reference into herein.

When the CA that UE refusals are provided by eNB is configured, then UE can inform eNB before it can use the configuration this is refused Absolutely, or first by the configuration and then eNB can be informed.

(wherein UE have rejected the configuration before application) in the first scenario, UE may infer that the configuration whether may Cause intolerable MPR.Then, UE can refuse the configuration and point out the refusal to eNB.UE can be stored or can be with The configuration of the refusal is not stored, even if it is not employed.If UE stores the configuration, it can remove the refusal The confirmation from eNB is waited before configuration.

(wherein UE applies the configuration before refusal) in the latter case, UE application SCell UL are configured and it Determine that PCell and/or SCell expectation A-MPR is excessive afterwards.Then, UE points out this situation to eNB.At this point, UE can be with Getting started can wait eNB to provide newly using single UL (such as used PCell UL before CA activation), or UE Configuration.The configuration being rejected can be kept, until eNB provides new configuration.

Alternatively, eNB can impliedly (such as by not sending message/confirmation/match somebody with somebody to UE again) or clearly (such as Response is sent to keep/cover the configuration to UE by logical usual instructions) cover UE and order UE to use (or being continuing with) The configuration being rejected.If the configuration being rejected is remained stored at UE, eNB can avoid resending the configuration.

UE can notify that the configuration is all any one of in many ways disabled with signaling.For example, by making With RRC signaling, PHR reports, MAC CE and/or L1 signalings.RRC signaling, which can be included in existing message, uses new field, Such as RRC, again with completion, it is sent to configuration interband SCell UL RRC connection reallocation messages as confirmation.PHR is reported The response for matching somebody with somebody again can be triggered, this is having pointed out already above.This can utilize current mechanism and need minimally Change or do not change existing specification.It can introduce and be exclusively used in the new MAC CE of this purpose to point out that UE requires UL configurations Change.Such message may also indicate that the additional A-MPR that UE is used.

Based on the above, it should be apparent that, illustrative embodiments of the invention provide it is a kind of be used to preventing by Method, equipment and the computer program of interference are received caused by interband CA.

Figure 10 be a diagram that operation and the computer program instructions of method according to an illustrative embodiment of the invention The logical flow chart of implementing result.According to these illustrative embodiments, a kind of method performs reception at block 1010 and is used for In first band and second band the step of the instruction of operation simultaneously.First peak power reduce it is associated with first band and Second peak power reduces associated with second band.Grasped while at block 1020 in determination first band and second band The step of whether work can cause the desensitization at least one frequency acceptance band.It can cause desensitization in response to determining that this is operated simultaneously, The step of selection power adjustment is performed at block 1030.Power adjustment includes following at least one：For first band One A-MPR and/or the 2nd A-MPR for second band.At block 1040 for determine application power adjustment when device whether Can be in first band and second band while the step of operation.In response to determining that the device can in application power adjustment Operate in first band and second band, adjusted at block 1050 using power simultaneously.

Various pieces shown in Figure 10 can be considered as to method and step, and/or be considered as operation due to computer program code Caused by operate, and/or be considered as the logic circuit components of the multiple couplings for being configured to perform associated function.

It is the method for preventing from receiving interference as caused by interband CA according to a kind of illustrative embodiments of the present invention. This method, which includes receiving, is used in first band and second band the instruction of operation simultaneously.First peak power reduces (MPR) It is associated with first band.2nd MPR is associated with second band.This method also includes determining in first band and second band While operation whether can cause the desensitization at least one frequency acceptance band.In response to determining in first band and second band While operation can cause desensitization, select power adjustment.Power adjustment includes the first A-MPR and/or use for first band In the 2nd A-MPR of second band.This method include determining in application power adjustment device whether can in first band and Operated simultaneously in second band.In response to determining that device can be in first band and second band together in application power adjustment When operate, adjusted using power.

In the other illustrative embodiments of above method, this method also includes：In response to determining using power Device can not be operated simultaneously in first band and second band during adjustment, and device is switched under a up-link and two Downlink mode, the power output of in first band and second band frequency band is set to be reduced to minimum output power level And/or the network element device is notified to be operated simultaneously in first band and second band.

In the another exemplary embodiment of either method in above method, power adjustment is selected to include：At least portion Divide based on first band and second band and select power to adjust.

In the another exemplary embodiment of either method in above method, include using power adjustment：To first First MPR of frequency band adds the first A-MPR and/or adds the 2nd A-MPR to the 2nd MPR of second band.

In the another exemplary embodiment of either method in above method, it is determined that the device in application power adjustment Whether can be operated simultaneously in first band and second band includes：It is determined that regulate whether device can be caused to be in using power The outside of the overlay area of first band and/or second band.

In the another exemplary embodiment of either method in above method, determine in first band and second band While operation whether desensitization can be caused to include：Determine the transmission in first band and/or second band whether to first band And/or the reception in second band produces harmonic wave interference.

In the another exemplary embodiment of either method in above method, determine in first band and second band While operation whether desensitization can be caused to include：Determine the transmission in both first band and second band whether to first band And/or the reception in second band produces Intermodulation Interference.

It is the equipment for preventing from receiving interference as caused by interband CA according to the another exemplary embodiment of the present invention. The equipment includes：At least one processor；And at least one memory comprising computer program code.This is at least one to deposit Reservoir and computer program code are formulated into causes the equipment to perform following action with least one processor.These action bags Include：Receive in first band and second band and meanwhile operation instruction.First MPR is associated with first band and Two MPR are associated with second band.These actions also include：Whether operation can while determination in first band and second band Cause the desensitization at least one frequency acceptance band.Operation can cause while in response to determining in first band and second band Desensitization, select power adjustment.Power adjustment includes second for the first A-MPR of first band and/or for second band A-MPR.These actions also include：It is determined that whether device can be same in first band and second band in application power adjustment When operate.In response to determining that device can operate in first band and second band in application power adjustment, apply simultaneously Power adjusts.

In the another exemplary embodiment of above equipment, these actions also include：In response to determining using power Device can not be operated simultaneously in first band and second band during adjustment, and device is switched under a up-link and two Downlink mode, the power output of in first band and second band frequency band is set to be reduced to minimum output power level And/or the network element device is notified to be operated simultaneously in first band and second band.

In the another exemplary embodiment of any appliance in above equipment, power adjustment is selected to include：At least portion Divide based on first band and second band and select power to adjust.

In the another exemplary embodiment of any appliance in above equipment, include using power adjustment：To first First MPR of frequency band adds the first A-MPR and/or adds the 2nd A-MPR to the 2nd MPR of second band.

In the another exemplary embodiment of any appliance in above equipment, it is determined that the device in application power adjustment Whether can be operated simultaneously in first band and second band includes：It is determined that regulate whether device can be caused to be in using power The outside of the overlay area of first band and/or second band.

In the another exemplary embodiment of any appliance in above equipment, determine in first band and second band While operation whether desensitization can be caused to include：Determine the transmission in first band and/or second band whether to first band And/or the reception in second band produces harmonic wave interference.

In the another exemplary embodiment of any appliance in above equipment, determine in first band and second band While operation whether desensitization can be caused to include：Determine the transmission in both first band and second band whether to first band And/or the reception in second band produces Intermodulation Interference.

In the another exemplary embodiment of any appliance in above equipment, this sets redundant integrated circuit to implement.

In the another exemplary embodiment of any appliance in above equipment, the equipment is implemented with mobile device.

Another exemplary embodiment according to the present invention is the calculating for preventing from receiving interference as caused by interband CA Machine computer-readable recording medium.The computer-readable medium visibly encodes the computer journey that action can be performed by computing device Sequence.These actions include：Receive in first band and second band and meanwhile operation instruction.The frequencies of first MPR and first Band is associated and the 2nd MPR is associated with second band.These actions also include：Determine in first band and second band Whether operation can cause the desensitization at least one frequency acceptance band simultaneously.In response to determining in first band and second band Desensitization can be caused by operating simultaneously, select power adjustment.Power adjustment includes being used for the first A-MPR of first band and/or is used for 2nd A-MPR of second band.These actions also include：It is determined that whether device can be in first band in application power adjustment With operated simultaneously in second band.In response to determining whether device can be in first band and the second frequency in application power adjustment Take while operate, adjusted using power.

In the another exemplary embodiment of above computer-readable medium, these actions also include：In response to determining In application power adjustment, device can not be operated simultaneously in first band and second band, and device is switched into a uplink Road and two downlink modes, make the power output of in first band and second band frequency band be reduced to minimum output Power level and/or the notice network element device can not operate simultaneously in first band and second band.

In the another exemplary embodiment of any one in above computer-readable medium, power adjustment bag is selected Include：It is at least partially based on first band and second band and selects power to adjust.

In the another exemplary embodiment of any one in above computer-readable medium, adjust and wrap using power Include：The first A-MPR is added to the first MPR of first band and/or adds the 2nd A-MPR to the 2nd MPR of second band.

In the another exemplary embodiment of any one in above computer-readable medium, it is determined that being adjusted in application power Whether device can simultaneously operate in first band and second band and include when whole：It is determined that regulate whether to cause using power Device is in the outside of the overlay area of first band and/or second band.

In the another exemplary embodiment of any one in above computer-readable medium, first band and are determined Whether operation can cause desensitization to include while on two frequency bands：Determine whether the transmission in first band and/or second band is right Reception in first band and/or second band produces harmonic wave interference.

In the another exemplary embodiment of any one in above computer-readable medium, first band and are determined Whether operation can cause desensitization to include while on two frequency bands：Determine whether the transmission in both first band and second band is right Reception in first band and/or second band produces Intermodulation Interference.

In the another exemplary embodiment of any one in above computer-readable medium, computer-readable medium is Non-volatile computer-readable medium (such as CD-ROM, RAM, flash memory, magnetic stripe store etc.).

It is the equipment for preventing from receiving interference as caused by interband CA according to the another exemplary embodiment of the present invention. The equipment includes being used to receive being used in first band and second band the device of the instruction of operation simultaneously.First MPR and One frequency band is associated and the 2nd MPR is associated with second band.The equipment also includes being used to determine first band and the second frequency Whether operation can cause the device of the desensitization at least one frequency acceptance band while taking.The equipment also includes being used to respond In it is determined that while in first band and second band operation can cause desensitization to select the device that power adjusts.Power adjustment bag Include the 2nd A-MPR for the first A-MPR of first band and/or for second band.The equipment also includes being used to determine When being adjusted using power device whether can in first band and second band and meanwhile operation device.The equipment also includes using Device can operate to apply power simultaneously in first band and second band when in response to determining in application power adjustment The device of adjustment.

In the another exemplary embodiment of above equipment, the equipment also includes：In response to determining to adjust in application power Device can not operate simultaneously on first frequency and second frequency when whole, for device to be switched into a up-link and two The device of downlink mode, the power output for making a frequency band in first band and second band are reduced to minimum defeated Go out the device of power level and/or for notifying the network element device in first band and second band while can not operate Device.

In the another exemplary embodiment of any one in above equipment, power adjustment selector includes being used for extremely First band and second band are at least partly based on to select the device that power adjusts.

In another illustrative embodiments of any one in above equipment, power adjustment application device includes being used for The first A-MPR device is added to the first MPR of first band and/or for adding the 2nd A- to the 2nd MPR of second band MPR device.

In the another exemplary embodiment of any one in above equipment, for determining in application power adjustment fashionable dress Put whether can in first band and second band and meanwhile operation device include be used for determine apply the power meeting of regulateing whether Device is caused to be in the device of the outside of the overlay area of first band and/or second band.

In another illustrative embodiments of any one in above equipment, for determining first band and the second frequency Whether operation can cause the device of desensitization to include being used to determine that the transmission in first band and/or second band is while taking The no reception in first band and/or second band produces the device of harmonic wave interference.

In the another exemplary embodiment of any one in above equipment, for determining first band and second band Whether operation can cause the device of desensitization to include being used to determine that the transmission in both first band and second band is while upper The no reception in first band and/or second band produces the device of Intermodulation Interference.

In a word, various illustrative embodiments can be with hardware or special circuit, software, logic or its any combinations come real It is existing.For example, some aspects can be realized with hardware, and other aspects can use can by controller, microprocessor or its Firmware or software that his computing device performs is realized, although the invention is not restricted to this.Although the exemplary embodiment party of the present invention The various aspects of formula can be depicted and described as block diagram, flow chart or be represented using other some diagrams, but be well understood by , as nonrestrictive example, these blocks described herein, equipment, system, techniques or methods can use hardware, Software, firmware, special circuit or logic, common hardware or controller or other computing devices or its some combination come real It is existing.

It will thus be appreciated that at least some of aspect of the illustrative embodiments of the present invention can be with various parts such as IC chip and module are put into practice, and the illustrative embodiments of the present invention can be with being implemented as setting for integrated circuit It is standby to realize.Integrated circuit can include being formulated into according to an illustrative embodiment of the invention to operate for implementation Data processor, digital signal processor, the circuit of at least one or more in baseband circuit and radio circuit (be also possible to Including firmware).

In view of above description, when being read in conjunction with the figure, the various modifications of above-mentioned example embodiment of the invention and Adaptation will be clear to those skilled in the art.However, any and all modifications still fall within the non-of the present invention In the range of limitative examples embodiment.

For example, although these exemplary implementations are described in the background of E-UTRAN (UTRAN-LTE) system above Mode, it being understood, however, that, illustrative embodiments of the invention are not limited to and a kind of this wireless communication system of particular type It is used together, these embodiments can be used in such as other wireless communication systems (WLAN, UTRAN, GSM, as being applicable).

It should be noted that term " connection ", " coupling " or its any modification mean times between two or more elements What direct or indirect connection or coupling, and can be included between the element of two " connections " or " coupling " together In the presence of one or more intermediary elements.Coupling or connection between element can be physics, logic or its combination.Such as this Used in text, as some non-limiting and nonexhaustive example, it is believed that two elements by using one or Multiple wires, cable and or printing electrical connection and by using electromagnetic energy such as have radio-frequency region, microwave range and The electromagnetic energy of wavelength in the range of light (visible and invisible the two) and " connection " or " coupling " are together.

In addition, the various titles (such as A-MPR etc.) for characterising parameter are not intended to be limited with any aspect, this A little parameters can be identified with any suitable title.In addition, distribute to various titles (such as frequency band 17, frequency band 4 of different channels Deng) be not intended to be limited with any aspect, these various channels can be identified with any suitable title.

In addition, some of which feature of the various non-restrictive illustrative embodiments of the present invention can be used for not corresponding to Advantageous effect is played in the case of using other feature.Accordingly, it is to be understood that above description only illustrates the principle of the present invention, religion Lead and illustrative embodiments, be not intended to limit the present invention.

Claims

1. a kind of control the method that interference is received as caused by interband carrier aggregation, methods described includes：

Receive in first band and second band and meanwhile operation instruction, wherein the first peak power reduces and described the One frequency band is associated and the reduction of the second peak power is associated with the second band；

Whether operation can cause at least one frequency acceptance band while determination in the first band and the second band Desensitization；

It can cause desensitization in response to operating described in determining in the first band and the second band simultaneously, select power to adjust It is whole, wherein the power adjustment include it is following at least one：For the first band the first addictive maximum power reduce and The second addictive maximum power for the second band reduces；

It is determined that whether device can be grasped simultaneously in the first band and the second band in application power adjustment Make；

In response to determining that described device can be in the first band and the second band in application power adjustment Operate, adjusted using the power simultaneously；

In response to determining that described device can not be in the first band and the second band in application power adjustment Operate and perform following at least one simultaneously：

Described device is switched into a up-link and two downlink modes；

The power output of in the first band and the second band frequency band is set to be reduced to minimum output power level； And

Notice network element described device can not operate simultaneously in the first band and the second band.

2. according to the method for claim 1, wherein selecting the power adjustment to include：It is at least partially based on first frequency Band and the second band and select power to adjust.

3. the method according to claim 1 or claim 2, wherein application power adjustment includes following at least one It is individual：

Reduced in first peak power of the first band and add the first addictive maximum power reduction；And

Reduced in second peak power of the second band and add the second addictive maximum power reduction.

4. method according to claim 1 or 2, wherein determining that described device whether can in application power adjustment Operation includes simultaneously in the first band and the second band：It is determined that regulate whether to cause using the power described The outside of the overlay area at least one frequency band that device is in the first band and the second band.

5. method according to claim 1 or 2, wherein being grasped while determination in the first band and the second band Whether work can cause desensitization to include：Determine whether the transmission on a frequency band in the first band and the second band is right Reception at least one frequency band in the first band and the second band produces harmonic wave interference.

6. method according to claim 1 or 2, wherein being grasped while determination in the first band and the second band Whether work can cause desensitization to include：Determine the transmission in both the first band and the second band whether to described first Reception at least one frequency band in frequency band and the second band produces Intermodulation Interference.

7. a kind of equipment for being used to use when control receives interference as caused by interband carrier aggregation, the equipment are included by cloth It is set to the processing system for causing the equipment to perform following operation：

Prevent the equipment is in response to determining that described device is from the first band and institute in application power adjustment State in second band while operate and perform following at least one：

Described device is switched into a up-link and two downlink modes；

8. equipment according to claim 7, wherein the processing system is arranged such that equipment at least part base Power is selected to adjust in the first band and the second band.

9. according to the equipment described in claim 7 or claim 8, wherein the processing system is arranged such that described set It is standby：

Reduced in second peak power of the second band and add the second addictive maximum power reduction,

So as to which the application power adjusts.

10. the equipment according to claim 7 or 8, wherein the processing system is arranged such that the equipment determines to answer At least one frequency that described device can be caused to be in the first band and the second band is regulateed whether with the power The outside of the overlay area of band, so that it is determined that whether described device can be in the first band in application power adjustment Operated simultaneously with the second band.

11. the equipment according to claim 7 or 8, wherein the processing system is arranged such that the equipment determines institute The transmission on a frequency band in first band and the second band is stated whether to the first band and the second band In at least one frequency band on reception produce a kind of interference in harmonic wave interference and Intermodulation Interference, so that it is determined that first frequency Whether operation can cause desensitization while on band and the second band.

12. a kind of computer-readable medium, is stored thereon with computer program, the computer program performs by computing system When cause the computing system to perform following steps：

So that the computing system is at least one come to described in when the application power adjusts in following operate by performing Device can not the determination of operation be responded simultaneously in the first band and the second band：

Described device is switched into a up-link and two downlink modes；

13. computer-readable medium according to claim 12, wherein selecting the power adjustment to include at least part base Power is selected to adjust in the first band and the second band.