CN101527958A - Determining method of launch power, base station and terminal thereof - Google Patents
Determining method of launch power, base station and terminal thereof Download PDFInfo
- Publication number
- CN101527958A CN101527958A CN200910134409A CN200910134409A CN101527958A CN 101527958 A CN101527958 A CN 101527958A CN 200910134409 A CN200910134409 A CN 200910134409A CN 200910134409 A CN200910134409 A CN 200910134409A CN 101527958 A CN101527958 A CN 101527958A
- Authority
- CN
- China
- Prior art keywords
- terminal
- power control
- control parameter
- base station
- certain power
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Landscapes
- Mobile Radio Communication Systems (AREA)
Abstract
The invention discloses a determining method of launch power, a base station and terminals thereof. In the method, the base station determines specific power control parameters corresponding to each terminal or each group of the terminals, wherein, the specific power control parameters comprise specific compensating factors; the base station sends the determined specific power control parameters to the corresponding terminals, and each terminal determines the launching power according to the received specific power control parameters. The flexibility of the launch power of the control terminals is improved, and the system performance is improved.
Description
Technical field
The present invention relates to the communications field, in particular to a kind of determining method of launch power, base station and terminal.
Background technology
Co-channel interference in minizone or the sub-district is an intrinsic problem of radio honeycomb communication system, traditional solution is to adopt the channeling technology, for example, is one bunch (cluster) according to certain rule with several cell combination, use different frequency resources between the different districts in one bunch, use identical frequency resource between different bunches, the inverse of number of cells is defined as frequency duplex factor as one in bunch, and its value can be 1,1/3,1/7.But along with the continuous evolution of cellular communication system, system is more and more higher to the requirement of spectrum efficiency, and this just requires to use the multiplexing factor than higher, and for example, requiring frequency duplex factor as one is 1.In order further to improve the spectrum utilization efficiency of wireless communication system, wish that each sub-district can use whole frequency resources as much as possible, this just is starved of schemes such as using rational power control and controls presence of intercell interference effectively.In wireless cellular network, power control algorithm plays crucial effects to guaranteeing link-quality, reduction co-channel interference efficiently.
At third generation mobile partner plan (3rd Generation partnership project, abbreviate 3GPP as) Long Term Evolution (the Long Term Evolution that formulates of standardization body, abbreviate LTE as) in the standard, data channel has been designed the power control mode that uses the compensation of part path loss.The power setting P of terminal to transmit uplink data channel (Physical Uplink Shared Channel abbreviates PUSCH as)
PUSCHBe defined as follows:
P
PUSCH(i)＝min{P
MAX，10log
10(M
PUSCH(i))+P
O_PUSCH(j)+α·PL+Δ
TF(i)+f(i)}[dBm] (1)
Wherein, i represents it is i subframe; P
MAXBe the power of the maximum permission of terminal; M
PUSCH(i) be the number that subframe i goes up the frequency resource block of the PUSCH that distributes; P
O_PUSCH(j) be to guarantee the required target received power of base station received signal gross, wherein, j is the amount (j=0,1,2 respectively represent semi-persistent scheduling, dynamic dispatching and up access dispatching) relevant with the data packet dispatching mode; α is a road loss compensation factor, is a parameter that the sub-district is public, is provided by the upper strata; PL is that the path loss (also be path loss, Path Loss abbreviates PL as) that terminal measures according to downlink reference signal is estimated; Δ
TF(i) be that the base station is the adjustment parameter of the modulating-coding rank correlation of terminal distribution; F (i) expression base station sends to the power adjustment commands of terminal.
Can see that from formula (1) PUSCH uses part path loss compensation α PL to carry out the coarse adjustment of uplink transmission power, uses closed-loop power control order f (i) to carry out the fine setting of uplink transmission power.α PL represents the degree of path loss compensation, can control the interference of this cell terminal to the neighbor cell terminal roughly by the value of control α.For example, when α=1, expression is complete path loss compensation, that is, the position distance of tube terminal distance service base station not, the signal to noise ratio that each terminal arrives signal of base station all is identical, this transmitting power of also representing the cell edge terminal can be very high, can produce bigger presence of intercell interference; α=0 expression does not have the path loss compensation, all terminals make that the received power of center of housing estate terminal to base station can be high slightly, and the received power of cell edge terminal to base station are very low all with identical power emission in the sub-district, like this, the cell edge terminal is difficult to keep proper communication; When 0＜α＜1, the compensation of expression part path loss, promptly, all terminals are not complete path loss compensation in the sub-district, but neither not have the path loss compensation, but all terminals all compensate low power emission than complete path loss in the sub-district, wherein, the degree that transmitting power when using the center of housing estate terminal of part path loss compensation to compare complete path loss compensation with the cell edge terminal reduces is different, and it is more that the cell edge terminal reduces, and it is less that the center of housing estate terminal reduces.Such benefit is: compare the compensation of complete path loss, center of housing estate terminal throughput descends little, makes the cell edge terminal that the interference of neighbor cell is had reducing to a certain degree simultaneously, and then improves the throughput of cell edge terminal.It should be noted that in the standard of LTE clearly proposing road loss compensation factor α is the public power control parameters in sub-district.
In real system, terminal is randomly dispersed in the cell range, and the terminal quantity that can produce very strong presence of intercell interference is limited, and the geographical environment of different terminals also is different.In follow-up development of wireless communication systems, for example, Long Term Evolution development (Long Term Evolution Advance, abbreviate LTE-A as) system, adopted relaying (relay), multipoint cooperative emission/transmission to receive (Coordinated MultipointTransmission/Reception abbreviates CoMP as), spectrum aggregating new technologies such as (CarrierAggregation abbreviate CA as), thereby the different terminals transmission means in the same sub-district also can be different.And use the public path loss compensation in sub-district this moment, and just roughly the transmitting power of terminal is controlled, can not make dissimilar terminals with accurately rational power emission, its flexibility and systematic function aspect are limited.
Shortcoming to prior art is illustrated below.
For example, because the very near terminal in distance service base station is very little to the presence of intercell interference that neighbor cell produces, use path loss compensation completely with higher power emission to these terminals, then can improve the throughput of system with higher modulating-coding grade emission data; To producing the terminal of strong presence of intercell interference, use the compensation of part path loss, then can reduce presence of intercell interference, improve the throughput of overall network.And use public road loss compensation factor can not accomplish this point, cause the very little center of housing estate terminal of presence of intercell interference also will compensate low power delivery to compare complete path loss, limit the throughput of center of housing estate terminal, and then influenced the average throughput of whole system.
Again for example, at power control and partial frequency multiplexing (Fractional FrequencyReuse, abbreviate FFR as) when technology combines, to cell edge terminal distribution and the orthogonal frequency resource of neighbor cell, very strong presence of intercell interference can be do not produced with higher road loss compensation factor with higher power emission yet, and throughput can be effectively improved; Using with the non-orthogonal frequency resource of neighbor cell and with base station center has the terminal of certain distance, then can be with lower road loss compensation factor with lower power emission, and transmission as possible when reducing to the interference of other sub-districts.Can see from these analyses how tube terminal does not distribute and whether terminal can produce very strong presence of intercell interference, all can only adopt a public road loss compensation factor, then can not reach the maximization of throughput of system.Can not be to use the public road loss compensation factor in whole sub-district according to the characteristics of each terminal, the flexibility of this design is limited.
Cover and the raising throughput of system in order to enlarge, the system of LTE-A has introduced relaying (relay), Home eNodeB new nodes such as (HomeNodeB), makes that the problem of presence of intercell interference is complicated more, needs power control scheme more flexibly.Scene with relay is an example: after adding relaying relay, the terminal that is connected with relay is because closer from relay, and do not need directly and transmitting uplink data is carried out in the base station, these terminals only need less compensating factor just can with the relay uplink communication, the terminal that is not connected with relay then needs bigger compensating factor to keep and the uplink communication of base station.If at this moment use a public compensating factor, will make the terminal that is connected with relay with bigger power emission, not only can cause very strong presence of intercell interference, also can use the other-end of same frequency resources to cause in the very strong sub-district simultaneously and disturb (scene of relay is being arranged, having the situation of using same frequency band with different terminals in the sub-district simultaneously) this sub-district.From this respect, the terminal that is connected with relay is all used a public compensating factor with the terminal that directly is connected with the base station without relay, and this design has not had flexibility.
In LTE-A, also adopted the CoMP new technology, also need to consider power control scheme more accurately and effectively.The terminal of CoMP is because there is the reception of a plurality of sub-districts, and signal quality improves a lot.But not the terminal of CoMP has only the Serving cell of oneself to receive, and signal quality does not improve.If as use the terminal of CoMP and do not use the terminal of CoMP to use public compensating factor, the system that will the make poor efficiency that becomes.
In LTE-A, used the technology of spectrum aggregating, a plurality of discrete frequency bands are formed a very big system bandwidth.Signal between base station and the terminal is propagated and can be produced very big decay (large scale decline).An important formation of this large scale decline is exactly a path loss.The size of path loss except and base station and terminal between distance dependent, also relevant with carrier frequency.At different frequency bands, the size of path loss is also different.To discontinuous frequency spectrum continuous or that the frequency domain distance is closer, the difference on this path loss can be ignored.But to several sections frequency spectrums that fall far short at frequency domain, the difference of its path loss is very big, can not ignore.The a plurality of discontinuous frequency spectrum of LTE-A often falls far short at frequency domain, uses different frequency ranges if at this moment be positioned at a plurality of terminals in same place, and then the path loss difference can be very big.Therefore, use a public road loss compensation factor on the whole system frequency band of LTE-A, can cause the up coverage difference of different frequency bands, this is not only very poor to the flexibility that overcomes presence of intercell interference, has also had a strong impact on the performance of system.
The problem that control method at terminal transmit power in the correlation technique is dumb, influence systematic function does not propose effective solution at present as yet.
Summary of the invention
The problem that control method at terminal transmit power is dumb, influence systematic function and propose the present invention, for this reason, main purpose of the present invention is to provide a kind of definite scheme of transmitting power, one of to address the above problem at least.
To achieve these goals, according to an aspect of the present invention, provide a kind of determining method of launch power.
Determining method of launch power according to the present invention comprises: the certain power Control Parameter of each terminal or every group of terminal correspondence is determined in the base station, and wherein, the certain power Control Parameter comprises: specific compensating factor; The base station sends to relevant terminal with the certain power Control Parameter of determining, so that each terminal is determined transmitting power according to the certain power Control Parameter that receives.
Preferably, said method also comprises: the base station sends to terminal with the common power Control Parameter, and wherein, the common power Control Parameter comprises: the public compensation factor.
Preferably, after the base station sent to terminal with certain power Control Parameter and common power Control Parameter, said method also comprised: terminal receives certain power Control Parameter and the common power Control Parameter from the base station; If terminal receives the certain power Control Parameter, then determine transmitting power according to the certain power Control Parameter; If terminal does not receive the certain power Control Parameter, then determine transmitting power according to the common power Control Parameter.
Preferably, after the base station sends to terminal with certain power Control Parameter and common power Control Parameter, said method also comprises: terminal receives certain power Control Parameter and the common power Control Parameter from the base station, and according to wherein specific compensating factor and the public compensation factor and definite transmitting power.
Wherein, the specific compensating factor and/or the public compensation factor comprise: the road loss compensation factor and/or the power back-off factor.
Preferably, according to one of the following power back-off factor that is provided with: target Signal to Interference plus Noise Ratio, target signal to noise ratio, target interference-to-noise ratio, target interference threshold.
Preferably, the base station is according to one of the following at least certain power Control Parameter of determining each terminal or every group of terminal correspondence: whether terminal tolerable interference-to-noise ratio, terminal geographical environment of living in, terminal on different frequency bands are subordinated to relaying, whether terminal is whether multipoint cooperative emission/transmission receiving terminal, terminal use identical frequency band.
Preferably, for every group of terminal, a plurality of terminals wherein have common trait, wherein, public characteristic comprise following one of at least: use identical frequency sets, have approximate geographical environment, approximate level of interference is arranged, be subordinated to identical service node.
Preferably, the base station sends the certain power Control Parameter by the mode of broadcasting, multicast or clean culture.
To achieve these goals, according to a further aspect in the invention, provide a kind of base station.
Base station according to the present invention comprises: determination module, be used for determining the certain power Control Parameter of each terminal or every group of terminal correspondence, and wherein, the certain power Control Parameter comprises: specific compensating factor; First sending module is used for the certain power Control Parameter is sent to terminal, so that terminal is determined transmitting power according to its corresponding certain power Control Parameter.
Preferably, above-mentioned base station also comprises: second sending module, be used for the common power Control Parameter is sent to terminal, and wherein, the common power Control Parameter comprises: the public compensation factor.
To achieve these goals, in accordance with a further aspect of the present invention, provide a kind of terminal.
Terminal according to the present invention comprises: first receiver module, be used to receive certain power parameter from the base station, and wherein, the certain power Control Parameter comprises: specific compensating factor; First determination module is used for determining transmitting power according to the certain power Control Parameter that first receiver module receives.
Preferably, above-mentioned terminal also comprises: second receiver module, be used to receive common power parameter from the base station, and wherein, the common power Control Parameter comprises: the public compensation factor; Judge module is used to judge whether first receiver module receives the certain power Control Parameter; Second determination module, the judged result that is used at judge module is under the situation not, determines transmitting power according to the common power Control Parameter that second receiver module receives.
By the present invention, one or one group of terminal use certain power Control Parameter have been adopted, and determine the method for transmitting power according to this certain power Control Parameter, solve the inflexible problem of control method of terminal transmit power, and then reached the effect of the transmitting power of control terminal, raising systematic function flexibly.
Description of drawings
Accompanying drawing described herein is used to provide further understanding of the present invention, constitutes the application's a part, and illustrative examples of the present invention and explanation thereof are used to explain the present invention, do not constitute improper qualification of the present invention.In the accompanying drawings:
Fig. 1 is the flow chart according to the determining method of launch power of the embodiment of the invention;
Fig. 2 is the schematic diagram that carries out determining method of launch power according to the tolerable IoT according to the different frequency set of the embodiment of the invention one;
Fig. 3 carries out the schematic diagram of determining method of launch power according to the embodiment of the invention two according to the different geographical environments of terminal;
Fig. 4 be according to the embodiment of the invention three in the sub-district, have relaying relay the time determining method of launch power schematic diagram;
Fig. 5 be according to the embodiment of the invention four in the sub-district, use CoMP the time determining method of launch power schematic diagram;
Fig. 6 is the schematic diagram of determining method of launch power during according to the use spectrum aggregating of the embodiment of the invention five;
Fig. 7 is the structured flowchart according to the base station of the embodiment of the invention;
Fig. 8 is the concrete structure block diagram according to the base station of the embodiment of the invention;
Fig. 9 is the structured flowchart according to the terminal of the embodiment of the invention;
Figure 10 is the concrete structure block diagram according to the terminal of the embodiment of the invention.
Embodiment
Functional overview
Consider that the determining method of launch power that exists in the correlation technique is dumb, can't improve the problem of system uplink performance better, the embodiment of the invention provides a kind of uplink transmission power controlling schemes, wherein, the certain power Control Parameter of one or one group terminal use is issued terminal, can be so that terminal be determined the transmitting power of oneself according to this power contorl parameters, thereby can send data to the base station with rational ascending power, and then can more effectively control the uplink interference of minizone, the ascending performance of raising system.Simultaneously, when the certain power Control Parameter be resolved or be received to terminal can not, use the common power Control Parameter, guaranteed that terminal and base station can carry out uplink communication.
Need to prove that under the situation of not conflicting, embodiment and the feature among the embodiment among the application can make up mutually.Describe the present invention below with reference to the accompanying drawings and in conjunction with the embodiments in detail.
Method embodiment
According to embodiments of the invention, provide a kind of determining method of launch power.
Fig. 1 is the flow chart according to the determining method of launch power of the embodiment of the invention, and as shown in Figure 1, this flow process comprises that following step S102 is to step S106:
Step S102, the certain power Control Parameter of each or every group of terminal correspondence is determined in the base station, and the certain power Control Parameter of determining sent to relevant terminal, for example, can send to above-mentioned terminal by control channel, so that each terminal is determined transmitting power according to the certain power Control Parameter that receives, that is, terminal can be determined transmitting power on place time and the frequency resource according to the certain power Control Parameter.Wherein, this certain power Control Parameter includes but not limited to: specific compensating factor.
Wherein, the certain power Control Parameter is determined according to one of following (but being not limited to) at least in the base station: whether terminal tolerable interference-to-noise ratio (Interference overThermal Noise Ratio abbreviates IoT as), terminal geographical environment of living in, terminal on different frequency bands are subordinated to relaying, whether terminal is whether CoMP terminal, terminal use identical frequency band etc.
Step S104, sub-district common power Control Parameter is determined in the base station, and sends to all terminals in the sub-district by broadcast channel, this common power Control Parameter includes but not limited to: the public compensation factor.
Step S106, terminal receives common power Control Parameter and certain power Control Parameter, determines its transmitting power then, wherein, when terminal can not be resolved the certain power Control Parameter, uses the common power Control Parameter.
Particularly, if terminal can not receive or parse the certain power Control Parameter, then use the common power Control Parameter to determine the transmitting power of terminal, promptly, if this terminal does not receive or parse specific compensating factor, the value of then giving tacit consent to compensating factor is the public compensation factor that the base station sends; If terminal receives and parses the public compensation factor and specific compensating factor that the base station sends, then can determine the transmitting power of terminal according to specific compensating factor, also can be according to the transmitting power public compensation factor and specific compensating factor and that determine this terminal.
Specific compensating factor can be the corresponding specific compensating factor of each terminal, it also can be one group of corresponding specific compensating factor of a plurality of terminals with common trait, wherein, common trait can include but not limited to: use identical frequency sets and/or have approximate geographical environment and/or approximate level of interference is arranged and/or be subordinated to identical service node.
Wherein, the specific compensating factor and/or the public compensation factor comprise: the road loss compensation factor and/or the power back-off factor.That is, the specific compensating factor and the public compensation factor can be road loss compensation factors, also can be the power back-off factors.The power back-off factor here can according to but be not limited to one of following the setting: target Signal to Interference plus Noise Ratio, target signal to noise ratio, target interference-to-noise ratio, target interference threshold.
Need to prove that the base station can issue certain power Control Parameter and common power Control Parameter by the mode of broadcasting, multicast or clean culture.
By this embodiment, up certain power Control Parameter is handed down to terminal, can be so that terminal be determined its transmitting power according to the certain power Control Parameter, thus can more effectively improve the uplink interference of sub-district, improve the throughput of system.Simultaneously, when terminal can not be resolved to the certain power Control Parameter, use the common power Control Parameter, guaranteed that terminal and base station can normally carry out uplink communication.
Need to prove, can in computer system, carry out in the step shown in the flow chart of accompanying drawing such as a set of computer-executable instructions, and, though there is shown logical order in flow process, but in some cases, can carry out step shown or that describe with the order that is different from herein.
Be described in detail below in conjunction with the implementation procedure of example the embodiment of the invention.
Embodiment one
This embodiment describes is to use different compensating factors on according to IoT on the different frequency bands.
Fig. 2 is the schematic diagram that carries out determining method of launch power according to the tolerable IoT according to the different frequency set of the embodiment of the invention one.As shown in Figure 2, each base station is indicated the tolerable IoT that different frequency sets (being example with four frequency sets A, B, C and D) correspondence is set here according to the IoT of the adjacent base station of receiving.Tolerable IoT is than higher frequency sets, represent that the presence of intercell interference that neighbor cell is subjected on this frequency sets is very little, therefore, can be with higher power emission, the compensating factor that this frequency sets is provided with is corresponding big, otherwise the compensating factor that the frequency sets that tolerable IoT is lower is provided with is smaller.In Fig. 2, α
1A, α
1B, α
1CAnd α
1DIt is the compensating factor of difference respective cell 1 frequency sets A, B, C and D; α
2A, α
2B, α
2CAnd α
2DIt is the compensating factor of difference respective cell 2 frequency sets A, B, C and D; α
3A, α
3B, α
3CAnd α
3DIt is the compensating factor of difference respective cell 3 frequency sets A, B, C and D.By the compensating factor in the different frequency set is set according to the presence of intercell interference situation, can control the IoT and the presence of intercell interference of system, thereby realize the raising of whole network system performance.
By embodiment one, realized determining specific compensating factor according to the tolerable IoT of different frequency set.
Embodiment two
What this embodiment described is to distribute different road loss compensation factors according to geographical environment.
Fig. 3 carries out the schematic diagram of determining method of launch power according to the embodiment of the invention two according to the different geographical environments of terminal.As shown in Figure 3, the overlay area of base station (the base station here also refers to a sub-district) is divided into multilayer, is example with four layers here, and terminal 1,2,3 and 4 lays respectively at first, second and third and four layers of base station.When not using partial frequency multiplexing FFR, any one frequency band that all terminals in the base station can the using system bandwidth.At this moment, according to the terminal in every layer of this base station neighbor cell is produced the degree of disturbing different road loss compensation factors is set, from the corresponding road loss compensation factor α of four layers of difference of ground floor to the
1, α
2, α
3And α
4, because the presence of intercell interference that produces near the terminal of center of housing estate is more little more, the presence of intercell interference that produces near the terminal of cell edge is big more more, so α
1＞α
2＞α
3＞α
4It is pointed out that when having used frequency planning such as FFR technology if the cell edge terminal has been used frequency band mutually orthogonal between neighbor cell and made that presence of intercell interference is very little, this moment, the road loss compensation factor of cell edge terminal can be disobeyed α
1＞α
2＞α
3＞α
4This relation may be α
1＞=α
4＞α
2＞α
3
By embodiment two, realized distributing different road loss compensation factors according to geographical environment.
Embodiment three
What this embodiment described is whether to be attached to relay according to terminal to distribute different road loss compensation factors.
Fig. 4 be according to the embodiment of the invention three in the sub-district, have relaying relay the time determining method of launch power schematic diagram.As shown in Figure 4, terminal 1 and terminal 2 are the terminals that are attached to relaying 1, and terminal 3 is the terminals that are attached to relaying 2.Terminal 4 and terminal 5 are not to be attached to any link terminal.The terminal that is attached to relaying need connect by its attached relaying and base station, the terminal that is not attached to relaying then directly and the base station connect.The terminal (terminal 1,2 and 3) that is attached to relaying is very near apart from relaying (relaying 1 and 2), wherein terminal 1,2 is very near apart from relaying 1, terminal 3 is very near apart from relaying 2, therefore, only need lower transmitting power promptly can keep uplink communication with relay, so not only can not produce strong presence of intercell interference, can not produce in the strong sub-district simultaneously yet and disturb the other-end of this sub-district.Therefore, be attached to the terminal of relay and use different compensating factors respectively, can in maximum system throughput, reduce the up co-channel interference in minizone and the sub-district with the terminal that is not attached to relay.
By embodiment three, realized that whether being attached to relay according to terminal distributes different road loss compensation factors.
Embodiment four
This embodiment describes is whether to distribute different road loss compensation factors for the CoMP terminal according to terminal.
Fig. 5 be according to the embodiment of the invention four in the sub-district, use CoMP the time determining method of launch power schematic diagram.As shown in Figure 5, terminal 1 is the CoMP terminal, is received simultaneously by base station 1 and base station 2.Terminal 2 and terminal 3 right and wrong CoMP terminals are only received by base station 1.Because the cooperative association between the base station makes the CoMP terminal can not cause strong jamming to neighbor cell, so terminal 1 can be with launching than the large compensation factor, makes the upward signal that adjacent cooperation cell also can reasonable receiving terminal 1.And 3 serviced base stations 1 of terminal 2 and terminal receive, and need the interference of consideration to neighbor cell, so compensating factor are different with the CoMP terminal.The CoMP terminal is used different compensating factors with non-CoMP terminal, in the time of can maximum system throughput, reduce presence of intercell interference.
By embodiment four, realized whether distributing different road loss compensation factors for the CoMP terminal according to terminal.
Embodiment five
What this embodiment described is to distribute different road loss compensation factors according to spectrum aggregating.
Fig. 6 is the schematic diagram of determining method of launch power during according to the use spectrum aggregating of the embodiment of the invention five.As shown in Figure 6, to LTE-A, used a plurality of discrete frequency bands to form system bandwidth, these discrete frequency ranges are at the frequency domain a good distance off, concerning a plurality of terminals that are positioned at same position use same sub-carrier number, if use different frequency range to carry out uplink respectively, then because the path loss difference of different frequency range correspondence, when using identical road loss compensation factor, its transmitting power also is different, and this makes the up coverage difference of different terminals of same position.Different frequency ranges is used different compensating factors, then can address this problem.As shown in Figure 6, two discrete frequency spectrum A and B are arranged, corresponding path loss is respectively PL
AAnd PL
B, difference using compensation factor-alpha
AAnd α
B, and make α
APL
A=α
BPL
B, just can be so that same position is arranged but use the different terminals of different spectral to have identical up coverage.
By embodiment five, realized distributing different road loss compensation factors according to spectrum aggregating.
By said method embodiment of the present invention, the base station is provided with special-purpose power contorl parameters according to the common trait of one or one group terminal and is handed down to terminal, can be so that terminal be determined its transmitting power according to this power contorl parameters, thereby can improve the performance of system, more effectively improve the uplink interference of minizone.Public power contorl parameters can guarantee to be resolved to the terminal of special-purpose power contorl parameters still can carry out up emission when not obtaining special-purpose power contorl parameters.
Device embodiment one
According to embodiments of the invention, provide a kind of base station.Fig. 7 is the structured flowchart according to the base station of the embodiment of the invention, and as shown in Figure 7, this base station comprises: determination module 72, first sending module 74 are described in detail this structure below.
Wherein, determination module 72 can be according to one of the following at least certain power Control Parameter of determining each terminal or every group of terminal correspondence: whether terminal tolerable interference-to-noise ratio, terminal geographical environment of living in, terminal on different frequency bands are subordinated to relaying, whether terminal is whether multipoint cooperative emission/transmission receiving terminal, terminal use identical frequency band.
Need to prove that it is one of following that the common trait of every group of terminal comprises at least: use identical frequency sets, approximate geographical environment is arranged, approximate level of interference is arranged, be subordinated to identical service node.
Fig. 8 is the concrete structure block diagram according to the base station of the embodiment of the invention, and as shown in Figure 8, this base station also comprises second sending module 82, is used for the common power Control Parameter is sent to terminal, and wherein, the common power Control Parameter comprises: the public compensation factor.
The above-mentioned specific compensating factor and/or the public compensation factor comprise: the road loss compensation factor and/or the power back-off factor.Wherein, can be according to one of the following power back-off factor that is provided with: target Signal to Interference plus Noise Ratio, target signal to noise ratio, target interference-to-noise ratio, target interference threshold.
The base station that present embodiment provides is by being provided with determination module 72, first sending module 74, the certain power Control Parameter of single or one group of terminal is handed down to terminal, terminal can be determined transmitting power according to this power contorl parameters, thereby can more effectively improve the uplink interference of sub-district, improve systematic function; By second sending module 82 the common power Control Parameter is handed down to terminal, the terminal that has guaranteed to be resolved to special-purpose power contorl parameters still can be carried out up emission when not obtaining special-purpose power contorl parameters.
Device embodiment two
According to embodiments of the invention, provide a kind of terminal.Fig. 9 is the structured flowchart according to the terminal of the embodiment of the invention, and as shown in Figure 9, this terminal comprises: first receiver module 92, first determination module 94 are described in detail this structure below.
First receiver module 92 is used to receive the certain power parameter from the base station, and wherein, the certain power Control Parameter comprises: specific compensating factor; First determination module 94 is connected to first receiver module 92, is used for determining transmitting power according to the certain power Control Parameter that first receiver module 92 receives.
Figure 10 is the concrete structure block diagram according to the terminal of the embodiment of the invention, and as shown in figure 10, this terminal also comprises: second receiver module 12, judge module 14, second determination module 16.Below this structure is described in detail.
Second receiver module 12 is used to receive the common power parameter from the base station, and wherein, the common power Control Parameter comprises: the public compensation factor; Judge module 14 is connected to first receiver module 92, is used to judge whether first receiver module 92 receives the certain power Control Parameter; Judged result is under the genuine situation, determines transmitting power according to the certain power Control Parameter that first receiver module 92 receives.Second determination module 16 is connected to the judge module 14 and second receiver module 12, and the judged result that is used at judge module 14 is under the situation not, determines transmitting power according to the common power Control Parameter that second receiver module 12 receives.
The terminal that present embodiment provides can make this terminal determine transmitting power according to the certain power Control Parameter, thereby can more effectively improve the uplink interference of sub-district by first receiver module 92, first determination module 94 are set, and improves systematic function; By second receiver module 12, judge module 14, second determination module 16, guaranteed that terminal still can use the common power parameter to carry out up emission under the situation that can't obtain the certain power Control Parameter.
Need to prove, base station among apparatus of the present invention embodiment and terminal can be used separately, also can be combined into transmitting power really fixed system use, the structure that transmitting power after the combination is described among the structure in the fixed system and said apparatus embodiment one and the device embodiment two really is identical, does not repeat them here.
In sum, pass through the above embodiment of the present invention, one or one group of specific power contorl parameters of terminal use, can be so that terminal be determined the transmitting power of oneself according to this power contorl parameters, solved in the correlation technique determining method of launch power dumb, can't improve the problem of system uplink performance better, thereby can reach the purpose that effective control cell uplink disturbs, improves the system uplink performance.Simultaneously, when terminal can not be resolved to the certain power Control Parameter, use the common power Control Parameter, guaranteed that terminal and base station can carry out uplink communication.
Obviously, those skilled in the art should be understood that, above-mentioned each module of the present invention or each step can realize with the general calculation device, they can concentrate on the single calculation element, perhaps be distributed on the network that a plurality of calculation element forms, alternatively, they can be realized with the executable program code of calculation element, thereby, they can be stored in the storage device and carry out by calculation element, perhaps they are made into each integrated circuit modules respectively, perhaps a plurality of modules in them or step are made into the single integrated circuit module and realize.Like this, the present invention is not restricted to any specific hardware and software combination.
The above is the preferred embodiments of the present invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (13)
1. a determining method of launch power is characterized in that, comprising:
The certain power Control Parameter of each terminal or every group of terminal correspondence is determined in the base station,
Wherein, described certain power Control Parameter comprises: specific compensating factor;
The described certain power Control Parameter that described base station will be determined sends to relevant terminal, so that described each terminal is determined transmitting power according to the certain power Control Parameter that receives.
2. method according to claim 1 is characterized in that, described method also comprises:
Described base station sends to described terminal with the common power Control Parameter, and wherein, described common power Control Parameter comprises: the public compensation factor.
3. method according to claim 2 is characterized in that, after described base station sent to described terminal with described certain power Control Parameter and described common power Control Parameter, described method also comprised:
Described terminal receives described certain power Control Parameter and the described common power Control Parameter from described base station;
If described terminal receives described certain power Control Parameter, then determine described transmitting power according to described certain power Control Parameter;
If described terminal does not receive described certain power Control Parameter, then determine described transmitting power according to described common power Control Parameter.
4. method according to claim 2 is characterized in that, after described base station sent to described terminal with described certain power Control Parameter and described common power Control Parameter, described method also comprised:
Described terminal receives described certain power Control Parameter and the described common power Control Parameter from described base station, and according to wherein the described specific compensating factor and the described public compensation factor and determine described transmitting power.
5. according to each described method in the claim 2 to 4, it is characterized in that the described specific compensating factor and/or the described public compensation factor comprise: the road loss compensation factor and/or the power back-off factor.
6. method according to claim 5 is characterized in that, according to one of following the described power back-off factor is set:
Target Signal to Interference plus Noise Ratio, target signal to noise ratio, target interference-to-noise ratio, target interference threshold.
7. according to each described method in the claim 1 to 4, it is characterized in that described base station is according to one of the following at least certain power Control Parameter of determining described each terminal or described every group of terminal correspondence:
Whether described terminal tolerable interference-to-noise ratio, described terminal geographical environment of living in, described terminal on different frequency bands are subordinated to relaying, whether described terminal is whether multipoint cooperative emission/transmission receiving terminal, described terminal use identical frequency band.
8. according to each described method in the claim 1 to 4, it is characterized in that for described every group of terminal, a plurality of terminals wherein have common trait, wherein, described public characteristic comprise following one of at least:
Use identical frequency sets, have approximate geographical environment, approximate level of interference is arranged, be subordinated to identical service node.
9. according to each described method in the claim 1 to 4, it is characterized in that described base station sends described certain power Control Parameter by the mode of broadcasting, multicast or clean culture.
10. a base station is characterized in that, comprising:
Determination module is used for determining the certain power Control Parameter of each terminal or every group of terminal correspondence, and wherein, described certain power Control Parameter comprises: specific compensating factor;
First sending module is used for described certain power Control Parameter is sent to described terminal, so that described terminal is determined transmitting power according to the described certain power Control Parameter of its correspondence.
11. base station according to claim 10 is characterized in that, also comprises:
Second sending module is used for the common power Control Parameter is sent to described terminal, and wherein, described common power Control Parameter comprises: the public compensation factor.
12. a terminal is characterized in that, comprising:
First receiver module is used to receive the certain power parameter from the base station, and wherein, described certain power Control Parameter comprises: specific compensating factor;
First determination module is used for determining transmitting power according to the described certain power Control Parameter that described first receiver module receives.
13. terminal according to claim 12 is characterized in that, also comprises:
Second receiver module is used to receive the common power parameter from described base station, and wherein, described common power Control Parameter comprises: the public compensation factor;
Judge module is used to judge whether described first receiver module receives described certain power Control Parameter;
Second determination module, the judged result that is used at described judge module is under the situation not, determines described transmitting power according to the described common power Control Parameter that described second receiver module receives.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910134409.1A CN101527958B (en) | 2009-04-09 | 2009-04-09 | Determining method of launch power, base station and terminal thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910134409.1A CN101527958B (en) | 2009-04-09 | 2009-04-09 | Determining method of launch power, base station and terminal thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101527958A true CN101527958A (en) | 2009-09-09 |
| CN101527958B CN101527958B (en) | 2014-09-10 |
Family
ID=41095591
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910134409.1A Active CN101527958B (en) | 2009-04-09 | 2009-04-09 | Determining method of launch power, base station and terminal thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101527958B (en) |
Cited By (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011060741A1 (en) * | 2009-11-20 | 2011-05-26 | 华为技术有限公司 | Method for obtaining uplink transmission power control parameters |
| CN102348268A (en) * | 2010-08-03 | 2012-02-08 | 中兴通讯股份有限公司 | Uplink power control method and system of LTE (Long Term Evolution) system |
| CN102938930A (en) * | 2011-08-16 | 2013-02-20 | 华为技术有限公司 | Compensation method of coordinated multi-point (CoMP) system upstream power control, base station and user equipment (UE) |
| CN103024883A (en) * | 2011-09-20 | 2013-04-03 | 鼎桥通信技术有限公司 | Method for calculating initial power of user equipment of multi-antenna cell, node B and user equipment |
| WO2013044889A2 (en) * | 2011-09-30 | 2013-04-04 | 华为技术有限公司 | Power control method, base station, and device |
| CN103037489A (en) * | 2011-09-29 | 2013-04-10 | 中兴通讯股份有限公司 | Method and device for controlling uplink signal power |
| WO2013104275A1 (en) * | 2012-01-13 | 2013-07-18 | 中兴通讯股份有限公司 | Uplink signal transmission method and device |
| WO2013166695A1 (en) * | 2012-05-11 | 2013-11-14 | 富士通株式会社 | Method and device for controlling transmission power of uplink sounding reference signal |
| WO2014048233A1 (en) * | 2012-09-25 | 2014-04-03 | Huawei Technologies Co., Ltd. | Self adaptive multi-level downlink power control for noise-limited wireless cellular networks |
| CN103731378A (en) * | 2012-10-10 | 2014-04-16 | 京信通信系统（中国）有限公司 | Method and device for managing frequency deviation |
| CN104010358A (en) * | 2013-02-22 | 2014-08-27 | 华为技术有限公司 | Uplink transmission method, terminal device and communication system |
| CN104080157A (en) * | 2013-03-29 | 2014-10-01 | 普天信息技术研究院有限公司 | Uplink power control method for trunking terminal |
| CN104661296A (en) * | 2013-11-25 | 2015-05-27 | 株式会社Ntt都科摩 | Device and method for deciding transmission power of user device |
| CN104871612A (en) * | 2012-12-19 | 2015-08-26 | 富士通株式会社 | Radio communication method, radio communication system, radio station and radio terminal |
| CN105491621A (en) * | 2009-10-16 | 2016-04-13 | 苹果公司 | Joint uplink data processing by plural base stations |
| CN105657780A (en) * | 2014-11-13 | 2016-06-08 | 中兴通讯股份有限公司 | Network node selection method and device, as well as network node activation method and device |
| CN105813186A (en) * | 2014-12-31 | 2016-07-27 | 上海贝尔股份有限公司 | Transmission power determining method, device and system for user equipment |
| CN106899965A (en) * | 2017-03-16 | 2017-06-27 | 北京佰才邦技术有限公司 | The collocation method of transmit power, terminal, base station and baseband chip |
| WO2018233381A1 (en) * | 2017-06-21 | 2018-12-27 | 维沃移动通信有限公司 | Information configuration method, power adjustment method, base station, and mobile terminal |
| WO2019028925A1 (en) * | 2017-08-11 | 2019-02-14 | 华为技术有限公司 | Communication method and related device |
| CN109600826A (en) * | 2017-09-30 | 2019-04-09 | 华为技术有限公司 | Poewr control method and device |
| CN110139351A (en) * | 2018-02-08 | 2019-08-16 | 中国移动通信有限公司研究院 | A kind of Poewr control method and device, equipment, storage medium |
| CN116235566A (en) * | 2020-09-30 | 2023-06-06 | 华为技术有限公司 | Uplink power control method and equipment |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101064538A (en) * | 2006-04-30 | 2007-10-31 | 中兴通讯股份有限公司 | Power control method for time-division synchronous CDMA communication system |
| CN101272172A (en) * | 2008-05-09 | 2008-09-24 | 中兴通讯股份有限公司 | Road loss compensation factor configuration method and device |
| CN101352054A (en) * | 2006-02-28 | 2009-01-21 | 中兴通讯股份有限公司 | Power control parameter for updating high speed sharing information channel and method for transmitting power |
-
2009
- 2009-04-09 CN CN200910134409.1A patent/CN101527958B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101352054A (en) * | 2006-02-28 | 2009-01-21 | 中兴通讯股份有限公司 | Power control parameter for updating high speed sharing information channel and method for transmitting power |
| CN101064538A (en) * | 2006-04-30 | 2007-10-31 | 中兴通讯股份有限公司 | Power control method for time-division synchronous CDMA communication system |
| CN101272172A (en) * | 2008-05-09 | 2008-09-24 | 中兴通讯股份有限公司 | Road loss compensation factor configuration method and device |
Cited By (48)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105491621A (en) * | 2009-10-16 | 2016-04-13 | 苹果公司 | Joint uplink data processing by plural base stations |
| CN105491621B (en) * | 2009-10-16 | 2021-06-08 | 苹果公司 | Joint uplink data processing by multiple base stations |
| US9042926B2 (en) | 2009-11-20 | 2015-05-26 | Huawei Technologies Co., Ltd. | Method for obtaining uplink transmit power control parameter, base station, and user equipment |
| CN102076062B (en) * | 2009-11-20 | 2015-03-11 | 华为技术有限公司 | Uplink transmit power control parameter acquisition method, eNodeB and user equipment |
| WO2011060741A1 (en) * | 2009-11-20 | 2011-05-26 | 华为技术有限公司 | Method for obtaining uplink transmission power control parameters |
| CN102348268A (en) * | 2010-08-03 | 2012-02-08 | 中兴通讯股份有限公司 | Uplink power control method and system of LTE (Long Term Evolution) system |
| CN102938930A (en) * | 2011-08-16 | 2013-02-20 | 华为技术有限公司 | Compensation method of coordinated multi-point (CoMP) system upstream power control, base station and user equipment (UE) |
| WO2013023612A1 (en) * | 2011-08-16 | 2013-02-21 | 华为技术有限公司 | Compensation method, base station, and user equipment for uplink power control in a comp system |
| CN102938930B (en) * | 2011-08-16 | 2015-07-08 | 华为技术有限公司 | Compensation method of coordinated multi-point (CoMP) system upstream power control, base station and user equipment (UE) |
| US9924473B2 (en) | 2011-08-16 | 2018-03-20 | Huawei Technologies Co., Ltd. | Compensation method, base station, and user equipment for uplink power control in a CoMP system |
| CN103024883A (en) * | 2011-09-20 | 2013-04-03 | 鼎桥通信技术有限公司 | Method for calculating initial power of user equipment of multi-antenna cell, node B and user equipment |
| CN103024883B (en) * | 2011-09-20 | 2015-08-05 | 鼎桥通信技术有限公司 | Multi-antenna cell subscriber equipment initial power calculating method, base station and subscriber equipment |
| CN103037489A (en) * | 2011-09-29 | 2013-04-10 | 中兴通讯股份有限公司 | Method and device for controlling uplink signal power |
| CN103037489B (en) * | 2011-09-29 | 2017-12-26 | 中兴通讯股份有限公司 | uplink signal power control method and device |
| CN103037491B (en) * | 2011-09-30 | 2015-08-19 | 华为技术有限公司 | Poewr control method, base station and device |
| WO2013044889A3 (en) * | 2011-09-30 | 2013-05-16 | 华为技术有限公司 | Power control method, base station, and device |
| CN103037491A (en) * | 2011-09-30 | 2013-04-10 | 华为技术有限公司 | Power control method, base station and device |
| WO2013044889A2 (en) * | 2011-09-30 | 2013-04-04 | 华为技术有限公司 | Power control method, base station, and device |
| WO2013104275A1 (en) * | 2012-01-13 | 2013-07-18 | 中兴通讯股份有限公司 | Uplink signal transmission method and device |
| WO2013166695A1 (en) * | 2012-05-11 | 2013-11-14 | 富士通株式会社 | Method and device for controlling transmission power of uplink sounding reference signal |
| CN104255073A (en) * | 2012-05-11 | 2014-12-31 | 富士通株式会社 | Method and device for controlling transmission power of uplink sounding reference signal |
| US8908551B2 (en) | 2012-09-25 | 2014-12-09 | Futurewei Technologies, Inc. | Self adaptive multi-level downlink power control for noise-limited wireless cellular networks |
| WO2014048233A1 (en) * | 2012-09-25 | 2014-04-03 | Huawei Technologies Co., Ltd. | Self adaptive multi-level downlink power control for noise-limited wireless cellular networks |
| CN103731378A (en) * | 2012-10-10 | 2014-04-16 | 京信通信系统（中国）有限公司 | Method and device for managing frequency deviation |
| CN103731378B (en) * | 2012-10-10 | 2017-05-10 | 京信通信系统（中国）有限公司 | Method and device for managing frequency deviation |
| CN104871612A (en) * | 2012-12-19 | 2015-08-26 | 富士通株式会社 | Radio communication method, radio communication system, radio station and radio terminal |
| CN104010358B (en) * | 2013-02-22 | 2017-12-01 | 华为技术有限公司 | Method, terminal device and the communication system of uplink |
| CN104010358A (en) * | 2013-02-22 | 2014-08-27 | 华为技术有限公司 | Uplink transmission method, terminal device and communication system |
| CN104080157B (en) * | 2013-03-29 | 2017-09-22 | 普天信息技术研究院有限公司 | The ascending power control method of colony terminal |
| CN104080157A (en) * | 2013-03-29 | 2014-10-01 | 普天信息技术研究院有限公司 | Uplink power control method for trunking terminal |
| CN104661296B (en) * | 2013-11-25 | 2019-06-11 | 株式会社Ntt都科摩 | The device and method for determining the transmission power of user equipment |
| CN104661296A (en) * | 2013-11-25 | 2015-05-27 | 株式会社Ntt都科摩 | Device and method for deciding transmission power of user device |
| CN105657780A (en) * | 2014-11-13 | 2016-06-08 | 中兴通讯股份有限公司 | Network node selection method and device, as well as network node activation method and device |
| CN105813186A (en) * | 2014-12-31 | 2016-07-27 | 上海贝尔股份有限公司 | Transmission power determining method, device and system for user equipment |
| CN105813186B (en) * | 2014-12-31 | 2019-11-22 | 上海诺基亚贝尔股份有限公司 | A kind of method, apparatus and system determining transmission power for user equipment |
| CN106899965A (en) * | 2017-03-16 | 2017-06-27 | 北京佰才邦技术有限公司 | The collocation method of transmit power, terminal, base station and baseband chip |
| WO2018166439A1 (en) * | 2017-03-16 | 2018-09-20 | 北京佰才邦技术有限公司 | Transmission power configuration method, terminal, base station, and baseband chip |
| CN109104761B (en) * | 2017-06-21 | 2020-08-18 | 维沃移动通信有限公司 | Information configuration method, power adjustment method, base station and mobile terminal |
| CN109104761A (en) * | 2017-06-21 | 2018-12-28 | 维沃移动通信有限公司 | A kind of information configuring methods, power regulating method, base station and mobile terminal |
| WO2018233381A1 (en) * | 2017-06-21 | 2018-12-27 | 维沃移动通信有限公司 | Information configuration method, power adjustment method, base station, and mobile terminal |
| US11212749B2 (en) | 2017-06-21 | 2021-12-28 | Vivo Mobile Communication Co., Ltd. | Information configuration method, power adjustment method, base station, and mobile terminal |
| WO2019028925A1 (en) * | 2017-08-11 | 2019-02-14 | 华为技术有限公司 | Communication method and related device |
| CN109600826A (en) * | 2017-09-30 | 2019-04-09 | 华为技术有限公司 | Poewr control method and device |
| CN110691405A (en) * | 2017-09-30 | 2020-01-14 | 华为技术有限公司 | Power control method and device |
| US10939384B2 (en) | 2017-09-30 | 2021-03-02 | Huawei Technologies Co., Ltd. | Power control method and apparatus |
| CN110139351A (en) * | 2018-02-08 | 2019-08-16 | 中国移动通信有限公司研究院 | A kind of Poewr control method and device, equipment, storage medium |
| CN110139351B (en) * | 2018-02-08 | 2022-07-15 | 中国移动通信有限公司研究院 | Power control method, device, equipment and storage medium |
| CN116235566A (en) * | 2020-09-30 | 2023-06-06 | 华为技术有限公司 | Uplink power control method and equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101527958B (en) | 2014-09-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101527958B (en) | Determining method of launch power, base station and terminal thereof | |
| US20200403689A1 (en) | Repeater device for 5g new radio communication | |
| US10271290B2 (en) | Terminal device, base station device, and communication method | |
| US10560955B2 (en) | Apparatus and methods for moving relay interference mitigation in mobile e.g. cellular communication networks | |
| CN101729104B (en) | Method and system for controlling uplink transmitting power as well as base station | |
| Peng et al. | Interference avoidance mechanisms in the hybrid cellular and device-to-device systems | |
| US9420564B2 (en) | Apparatus and method for dynamic communication resource allocation for device to-device communications in a wireless communication system | |
| US9001717B2 (en) | Method and apparatus of transmitting and receiving signal in a distributed antenna system | |
| CN102340859B (en) | Up-link interference coordination method and equipment | |
| JP2019502300A (en) | Physical control channel signaling over shared communication media | |
| EP3403335A1 (en) | System, method, and apparatus for managing co-channel interference | |
| CN105637969A (en) | Method for transmitting and receiving random access preamble and device therefor | |
| JP2010206794A (en) | Method for optimizing performance in multi-cell orthogonal frequency-division multiple access networks including set of base stations | |
| Wang et al. | An interference coordination scheme for device-to-device multicast in cellular networks | |
| CN101895891B (en) | Inter-cell interference coordination method and device for implementing same | |
| KR101769395B1 (en) | Method and apparatus for controlling transmission power of base station in wireless communication system | |
| CN102724675B (en) | Disturbance control method, terminal and system based on distributed wireless network architecture | |
| CN103200577A (en) | Time division duplex (TDD) cross interference grouping management method and base station | |
| CN109076586B (en) | Radio Access Technology (RAT) aggregation over a shared communication medium | |
| US20220110107A1 (en) | Sidelink transmission from remote user equipment (ue) to relay ue | |
| CN106576251A (en) | Method and apparatus for supporting amorphous cell in wireless communication system | |
| WO2012077938A2 (en) | Resource allocation method and device in multi-node system | |
| Daher et al. | SC-PTM or MBSFN for mission critical communications? | |
| CN103796329A (en) | Transmission method for enhanced random access sequence and machine type communication (MTC) terminal | |
| Martinez Alonso et al. | IoT‐Based Management Platform for Real‐Time Spectrum and Energy Optimization of Broadcasting Networks |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |