CN101001237A - Frequency domain dispatching method - Google Patents
Frequency domain dispatching method Download PDFInfo
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- CN101001237A CN101001237A CN 200610086535 CN200610086535A CN101001237A CN 101001237 A CN101001237 A CN 101001237A CN 200610086535 CN200610086535 CN 200610086535 CN 200610086535 A CN200610086535 A CN 200610086535A CN 101001237 A CN101001237 A CN 101001237A
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Abstract
This invention discloses a frequency domain dispatch method including: A, obtaining response wave parameters of inside frequency domain of the bands in the signals received by a terminal, B, carrying out frequency domain dispatch to the terminal based on the internal domain response wave parameters to dispatch the frequency domains by the parameters received by the terminal and the parameters inside to realize frequency domain dispatch based on the wave state of the frequency domain response inside of the bands of the signals received by the terminal to reduce influence to frequency domain dispatch by internal band response fluctuation.
Description
Technical field
The present invention relates to the multi-carrier transmission technical field, be meant a kind of frequency domain dispatching method especially.
Background technology
In the last few years, be that the multi-carrier transmission technology of representative has been received people's extensive concern with OFDM.In the OFDM technology, can within a symbol of time domain, can a plurality of users insert simultaneously, for example OFDM (OFDMA) technology.Realize that within a symbol a plurality of users insert simultaneously, how the subcarrier of this moment distributes to the user, and promptly how carrying out frequency domain dispatching is an important problem.In the 802.16e agreement, according to different channel circumstances, provided different subcarrier assignment patterns, and how in these subcarrier assignment patterns, to have switched, promptly provided the method for carrying out frequency domain dispatching.
Subcarrier assignment patterns mainly comprises distributed mode and adaptive modulation and coding (AMC) pattern.In distributed mode, each user is assigned to discrete subcarrier; In the AMC pattern, the subcarrier of each symbol correspondence is divided into several frequency bands that is made of continuous sub-carriers (band), and each user is assigned to one or more frequency bands.In order to improve the capacity of system, need dispatch frequency domain resource according to the situation of frequency domain response, thereby be the suitable sub-carrier distribution manner of terminal selection.
In existing frequency domain dispatching method, when terminal adopts non-AMC pattern and when adopting the terminal of AMC pattern, following several different processing mode is arranged:
For the terminal that adopts non-AMC pattern, in the frequency band AMC mode assignments phase (Band AMCAllocation Timer), the Carrier interference ratio (CINR) of each frequency band in every frame that terminal receives in obtaining during this period, and the variance of the CINR of the average CINR on the calculating whole frequency band and each frequency band, above-mentioned average CINR greater than terminal in predefined frequency band AMC pattern enter average CINR thresholding (Band AMC Release Threshold), and when the maximum of the CINR variance of above-mentioned each frequency band is lower than in the terminal predefined frequency band AMC mode assignments thresholding (Band AMC AllocationThreshold), terminal selects four CINR values maximum, be the top-quality frequency band of frequency domain, and the CINR value of selected frequency band positional information and these four frequency band last frames is reported the base station.Terminal can report the base station with above-mentioned frequency band positional information and CINR value by reporting response (REP-RSP) message; The base station is carried out frequency domain dispatching according to the frequency band positional information and the CINR value that receive to terminal, promptly selects one or more bandwidth assignment to give this terminal, and uses selected frequency band to send data to terminal.
For the terminal that adopts the AMC pattern, in frequency band AMC pattern release period (Band AMCRelease Timer), the Carrier interference ratio (CINR) of each frequency band in every frame that terminal receives in obtaining during this period, and calculate the variance of each frequency band CINR, when the maximum of CINR variance was higher than that predefined frequency band AMC pattern discharges thresholding (Band AMC Release Threshold) in the terminal, the terminal informing base station was non-AMC pattern with the mode switch of this terminal; After the base station receives, be non-AMC pattern with the mode switch of terminal according to this notice.
For the terminal that adopts the AMC pattern, in the frequency band AMC mode assignments phase (Band AMCAllocation Timer), the CINR of each frequency band and the variance of each frequency band CINR in every frame that terminal receives in obtaining during this period, when determining the frequency band that one or more frequency band frequency domain quality are better than having reported according to these information, report the positional information and the CINR value of these frequency bands.After the base station receives the information of terminal to report, this terminal is reselected the frequency band of distributing to this terminal according to these information.Here, can adopt the mode of upgrading REP-RSP message midband information to report these frequency band positional informations and CINR value.
In the said method, when according to the CINR value of frequency band terminal being carried out frequency domain dispatching, the frequency domain response fluctuation meeting of frequency band inside impacts frequency domain dispatching, and then has caused the inaccurate of scheduling result, has limited the raising of power system capacity.For example, selected after frequency band reports the base station preferably by the CINR value, the inside frequency domain response that the frequency band of terminal transmission data was therefrom selected and distributed in the base station fluctuates bigger, then since for the purpose of terminal distribution frequency band be that the less channel that utilize to decline is the terminal transmission data, thereby raising power system capacity, and the inner frequency domain response fluctuation of frequency band has caused when being the terminal transmission data by this frequency band channel fading bigger more greatly, therefore be not embodied as the purpose of terminal distribution frequency band, frequency domain response is passive so frequency band is inner has caused influence to frequency domain dispatching, cause scheduling result inaccurate, also limited the raising of power system capacity.
Summary of the invention
In view of this, main purpose of the present invention is to provide a kind of frequency domain dispatching method, and this method can reduce the influence of the inner frequency domain response fluctuation of frequency band to frequency domain dispatching.
For achieving the above object, the invention provides a kind of frequency domain dispatching method, this method is applied within a symbol to realize comprise in the multi-carrier transmission technology that a plurality of users insert simultaneously:
A, obtain the inside frequency domain response fluctuation parameter of each frequency band in the signal that terminal receives;
B, this terminal is carried out frequency domain dispatching according to the inside frequency domain response fluctuation parameter of described each frequency band.
Described step B can comprise:
B11, terminal be according to N less frequency band of inner frequency domain response fluctuation of inside frequency domain response fluctuation parameter acquiring of each frequency band, and the fluctuate information of less frequency band of the inside frequency domain response that is obtained is reported the base station, and wherein N is the integer more than or equal to 1;
Frequency domain dispatching is carried out according to the band information of terminal to report in B12, base station.
Described terminal according to the less frequency band of N inner frequency domain response fluctuation of inside frequency domain response fluctuation parameter acquiring of each frequency band can for:
When described terminal adopted non-self-adapting modulation and coding AMC pattern, terminal reported thresholding to obtain N the minimum frequency band of inner frequency domain response fluctuation according to the inside frequency domain response fluctuation parameter and the predefined inner frequency domain response undulating value of each frequency band;
When described terminal adopted the AMC pattern, terminal was according to N frequency band of inside frequency domain response fluctuation parameter acquiring of each frequency band, this N the frequency band that the inner frequency domain response of frequency band fluctuates and reported less than this terminal.
Preferably, among the described step B11 inside less band information of frequency domain response fluctuation that is obtained being reported the base station further comprises before:
Terminal is obtained the fluctuate frequency domain mass parameter of less frequency band of described N inner frequency domain response, and selects M frequency band quality frequency band preferably according to the frequency domain mass parameter of being obtained, and wherein M is more than or equal to 1 and smaller or equal to the integer of N;
The information of described frequency band that the inside frequency domain response fluctuation of being obtained is less reports the base station and is: the information of M the better frequency band of quality of described selection is reported the base station.
Preferably, when described terminal adopted non-AMC pattern, described N was the integer greater than 4, and the value of described M is 4.
Preferably, described terminal according to the frequency domain mass parameter obtained select M frequency band quality preferably frequency band be:
When described terminal adopted non-AMC pattern, terminal was according to frequency domain mass parameter of being obtained and predefined selection quantity M ', selected M ' individual (M ' smaller or equal to described N time) or N (M ' greater than described N time) the top-quality frequency band of frequency band;
When described terminal adopted the AMC pattern, terminal was selected M frequency band according to the frequency domain mass parameter of being obtained, and the frequency band quality of this M frequency band is better than the frequency band that this terminal has reported.
The information of described M the better frequency band of quality can be the frequency band position of M the better frequency band of quality and frequency domain mass parameter.
Described step B can also comprise:
B21, terminal report the inside frequency domain response fluctuation parameter of the frequency band that is obtained to the base station;
Frequency domain dispatching is carried out according to the inside frequency domain response fluctuation parameter of the frequency band of terminal to report in B22, base station.
Further can comprise before the described step B21:
Terminal is obtained m frequency domain quality frequency band preferably according to the frequency domain mass parameter of frequency band, and wherein m is the integer more than or equal to 1;
Among the then described step B21, terminal reports the inside frequency domain response fluctuation parameter of the frequency band that is obtained to be to the base station:
Terminal reports the inside frequency domain response fluctuation parameter of described m the better frequency band of frequency domain quality to the base station.
Preferably, described terminal according to the frequency domain mass parameter of frequency band obtain m frequency domain quality preferably frequency band be:
When described terminal adopted non-AMC pattern, terminal was selected m the top-quality frequency band of frequency domain according to frequency domain mass parameter of being obtained and predefined selection quantity m;
When described terminal adopted the AMC pattern, terminal was obtained m frequency band according to the frequency domain mass parameter of being obtained, and the frequency band quality of this m frequency band is better than the frequency band that this terminal has reported.
Preferably, described terminal also reports the frequency band position and the frequency domain mass parameter of described m the better frequency band of frequency domain quality to the base station.
Preferably, described step B22 comprises:
N the less frequency band of frequency domain response fluctuation selected according to the inside frequency domain response fluctuation parameter of the frequency band of terminal to report in the base station, and selects one or more bandwidth assignment to give this terminal in selected frequency band, and described n is the integer more than or equal to 1.
Preferably, described base station selects n the less frequency band of frequency domain response fluctuation to be according to the inside frequency domain response fluctuation parameter of the frequency band of terminal to report:
The base station obtains the frequency band of n frequency domain response fluctuation minimum according to the inner frequency domain response fluctuation of the frequency band max threshold that sets in advance in the inside frequency domain response fluctuation parameter of the frequency band of terminal to report and this base station.
Preferably, when described terminal adopts non-AMC pattern, obtain the time domain fluctuation parameter and the frequency domain mass parameter of each frequency band in phase in frequency band AMC mode assignments, satisfy when entering the condition of AMC pattern determining according to time domain fluctuation parameter and frequency domain mass parameter, this terminal is carried out the described step of obtaining the inside frequency domain response fluctuation parameter of each frequency band in the signal that is received.
Preferably, when described terminal adopts non-AMC pattern, after the described steps A this terminal at the mean value of the inside of each frequency band frequency domain response fluctuation parameter less than predefined inner frequency domain response fluctuation average thresholding, and/or, the inside frequency domain response fluctuation parameter of each frequency band all less than in the terminal during predefined inner frequency domain response fluctuation max threshold, is just carried out described step B.
When described terminal adopts the AMC pattern, described step B can for: the base station is non-AMC pattern with the mode switch of terminal;
Then described terminal is determined the inside frequency domain response fluctuation parameter that there is frequency band when predefined frequency domain response undulating value discharges thresholding in self according to the inside frequency domain response fluctuation parameter of each frequency band that is obtained in frequency band AMC pattern release period, informing base station switches to non-AMC pattern, carries out described step B then.
When described terminal adopts the AMC pattern, further can comprise after the described steps A: terminal during frequency band AMC mode assignments in according to the inside frequency domain response fluctuation parameter of each frequency band, the inside frequency domain response fluctuation parameter of determining one or more frequency bands is during less than the frequency band that reported, report the inside frequency domain response fluctuation parameter of these frequency bands, among the then described step B, the base station is carried out frequency domain dispatching according to these information to this terminal after receiving the inside frequency domain response fluctuation parameter of terminal to report.
Preferably, described frequency domain mass parameter is a Carrier interference ratio.
Preferably, described inner frequency domain response fluctuation parameter is: the channel response variance of the inner subcarrier of frequency band.
Preferably, the inside frequency domain response fluctuation parameter of described frequency band is: terminal is in frequency band AMC mode assignments in the phase or in frequency band AMC pattern release period, according to the inner frequency domain response fluctuation of the determined frequency band of the targeting signal of the arbitrary frame that is received parameter, or the comprehensive described frequency band AMC mode assignments phase is interior or the inner frequency domain response fluctuation of the determined frequency band of the targeting signal parameter of interior each frame that is received of described frequency band AMC pattern release period.
By such scheme as can be seen, among the present invention, by obtaining the inside frequency domain response fluctuation parameter of each frequency band in the signal that terminal receives, and this terminal is carried out frequency domain dispatching according to the inside frequency domain response fluctuation parameter of described each frequency band, realized having carried out frequency domain dispatching, thereby reduced the influence of the inner frequency domain response fluctuation of frequency band frequency domain dispatching according to the frequency domain response fluctuation situation of each frequency band inside of terminal received signal;
In addition, combine by frequency domain response fluctuation parameter and frequency domain mass parameter among the present invention each frequency band inside, determine frequency band preferably, thereby terminal is carried out frequency domain dispatching according to determined better frequency band, thereby considered the frequency domain response situation of terminal all sidedly, make that the channel fading of determined better frequency band is less, also improved power system capacity.
Description of drawings
Fig. 1 is the overview flow chart of frequency domain dispatching method of the present invention;
Fig. 2 is the flow chart that adopts the end side of non-AMC pattern in the first embodiment of the invention;
Fig. 3 is the sub-carrier positions schematic diagram of targeting signal in the first embodiment of the invention;
Fig. 4 is the flow chart of base station side in the first embodiment of the invention;
Fig. 5 is the flow chart that adopts the end side of non-AMC pattern in the second embodiment of the invention.
Embodiment
For making the purpose, technical solutions and advantages of the present invention clearer, the present invention is described in further detail below in conjunction with accompanying drawing.
Main thought of the present invention is, obtains the inside frequency domain response fluctuation parameter of each frequency band in the signal that terminal receives, and according to the inside frequency domain response fluctuation parameter of described each frequency band this terminal carried out frequency domain dispatching.
The overall procedure of frequency domain dispatching method of the present invention may further comprise the steps as shown in Figure 1:
In the above-mentioned steps 102, can be that terminal is according to the less frequency band of the one or more inner frequency domain response fluctuations of the inside frequency domain response fluctuation parameter acquiring of each frequency band, and the information of these frequency bands reported the base station, frequency domain dispatching is carried out according to the band information of terminal to report in the base station then.
Terminal can also be after obtaining the less frequency band of one or more inner frequency domain response fluctuations, select one or more frequency band quality frequency band preferably again according to the frequency domain mass parameter again, the information with the better frequency band of selected one or more quality reports the base station then.
After terminal was obtained the frequency band that is reported, the band information that reports can include only the frequency band positional information and the frequency band mass parameter of these frequency bands, also may further include the inside frequency domain response fluctuation parameter of these frequency bands.
When above-mentioned terminal does not adopt the AMC pattern, terminal is obtained the time domain fluctuation parameter and the frequency domain mass parameter of each frequency band in frequency band AMC mode assignments in the phase, when fluctuate according to time domain parameter and frequency domain mass parameter are determined the condition that satisfies use AMC pattern, carry out above-mentioned steps 101 and step 102.
When above-mentioned terminal adopted the AMC pattern, terminal frequency band AMC pattern release period was again obtained the inside frequency domain response fluctuation parameter of each frequency band, and determines whether that according to the parameter of obtaining needs switch to non-AMC pattern; Terminal can also be obtained the inside frequency domain response fluctuation parameter of each frequency band in frequency band AMC mode assignments in the phase, and the frequency domain response fluctuation of determining frequency band according to the inner frequency domain response fluctuation of the frequency band that obtained parameter again reports the littler frequency band of above-mentioned frequency domain fluctuation to the base station during less than the frequency band that reported.
Below the present invention will be described in detail by specific embodiment.
In the first embodiment of the present invention, adopt non-AMC pattern terminal handling process as shown in Figure 2, specifically may further comprise the steps:
The Preamble that is received in this step can be in interior arbitrary frame of above-mentioned frequency band AMC mode assignments phase.Below with in the IEEE802.16e agreement sub-carriers mapping process, the sample point of fast Fourier transform (FFT) output is 1024, and promptly the quantity of subcarrier is 1024 to be example, and the concrete grammar of the channel response variance of the above-mentioned subcarrier of calculating be described:
At first, obtain the position of Preamble in the selected downlink frame:
PreambleCarrierSet
n＝n+3*k (1)
Wherein, PreambleCarrierSet
nSpecified particular sector (segment), the position of Preamble place subcarrier, n is the index of different segment, value is 0,1,2; K is an increments index, is worth to be 0......283,, does not transmit the Preamble signal owing to respectively reserve 86 protection subcarriers usually at the two ends of frequency domain, so the k value is 283 here.
For example, when Fig. 3 shows n=0, the position of Preamble sub-carriers, as can be seen from the figure subcarrier 86,89,92 ..., put data on 929,932,935, as the Preamble signal, other subcarriers are 0, and establishing the data value of putting on each subcarrier in the Preamble signal is P (k) (0≤k≤283).
Then be at receiving terminal Preamble signal spectrum function:
R(k)＝H(k)P(k)+N
k (2)
Wherein H (k) is signal frequency-domain response, N
kBe noise.
Obtain channel response value again:
Then by asking the variances sigma of each band channel response
2Determine the inside frequency domain response undulating value of this frequency band, as the inside frequency domain response fluctuation parameter of weighing frequency domain response fluctuation size in this frequency band.If each logic frequency band contains 72 subcarriers, then on average contain 24 Preamble values approximately, suppose that certain frequency band comprises k '～k '+23 values among the Preamble, then the inside frequency domain response undulating value σ of this frequency band
2Can try to achieve by following formula:
The Preamble signal obtains the inside frequency domain response undulating value of each frequency band in each frame that also can comprehensively receive in this step.The inside frequency domain response undulating value that comprehensive each frame that is received obtains each frequency band can be, calculate in the above-mentioned frequency band AMC mode assignments phase inside frequency domain response undulating value of each frequency band among each frame Preamble respectively, ask each frequency band again at the mean value of the inside frequency domain response undulating value that each frame calculated inside frequency domain response undulating value as this frequency band; Can also be the inside frequency domain response undulating value of trying to achieve each frequency band in each frame respectively by formula (1), (2) and (3), and then try to achieve each frequency band at the inside of each frame frequency domain response undulating value σ by formula (5)
2:
Wherein, T represents the frame number in frequency band AMC time mode assignments phase.
σ
2Big more, illustrate that the frequency domain response fluctuation of this frequency band inside is big more.
In this step, determine the inside frequency domain response fluctuation situation of each frequency band with the method for calculating the frequency domain response variance of each subcarrier in the Preamble signal, this is just as a kind of example, among the present invention, can certainly adopt additive method to determine the inside frequency domain response fluctuation situation of each frequency band, for example calculate the inside frequency domain response fluctuation parameter of each frequency band with the pilot tone in the data symbol.
The condition that enters the AMC pattern can be same as the prior art, that is: above-mentioned average CINR enters average CINR thresholding greater than predefined frequency band AMC pattern in the terminal, and the maximum of the CINR variance of above-mentioned each frequency band is lower than predefined frequency band AMC mode assignments thresholding in the terminal.
The condition that enters the AMC pattern also can be unlike the prior art, as except that above-mentioned condition same as the prior art, also comprise: the mean value of the inside frequency domain response undulating value of each frequency band is less than predefined inner frequency domain response fluctuation average thresholding, and/or the inside frequency domain response undulating value of each frequency band is all less than predefined inner frequency domain response fluctuation max threshold in the terminal.
The quantity of the top-quality frequency band of selected here frequency domain is the integer greater than, for example can be four.Terminal is selected the method for the top-quality frequency band of frequency domain, can be same as the prior art, just determine according to the CINR value, in this case, terminal can first execution in step 202 and 203, after having selected the top-quality frequency band of frequency domain, execution in step 201 is calculated the inside frequency domain response undulating value of these frequency bands again; Also can be unlike the prior art, the CINR value and the inner frequency domain response undulating value of comprehensive frequency band are determined, as at first selecting the maximum frequency band of N CINR value, N is the integer greater than four, selects the frequency band of four inner frequency domain response undulating value minimums again from this N frequency band; Otherwise perhaps, at first select the frequency band of N inner frequency domain response undulating value minimum, from this N frequency band, select the maximum frequency band of four CINR values again.
In this step, terminal can report the base station with above-mentioned frequency band positional information, CINR value and inner frequency domain response variance by reporting response (REP-RSP) message.
In the present embodiment, the handling process of base station side may further comprise the steps as shown in Figure 4:
The information that step 401, base station receiving terminal report.
For the terminal that adopts the AMC pattern, in frequency band AMC pattern release period, terminal can be higher than in the maximum of the CINR variance of determining each frequency band when predefined frequency band AMC pattern discharges thresholding in the terminal, and informing base station is non-AMC pattern with the mode switch of this terminal; Terminal also can the maximum of the inside frequency domain response undulating value of determining each frequency band greater than terminal in predefined frequency domain response undulating value when discharging thresholding, informing base station is non-AMC pattern with the mode switch of this terminal.In frequency band AMC mode assignments in the phase, terminal obtain each frequency band inside frequency domain response undulating value method can with above-mentioned steps 201 in describe identical.
For the terminal that adopts the AMC pattern, in frequency band AMC mode assignments in the phase, terminal can be according to the CINR of each frequency band and the variance of each frequency band CINR in every frame of during this period interior terminal reception, when determining the frequency band that one or more frequency band frequency domain quality are better than having reported, report the positional information and the CINR value of these frequency bands; Terminal also can be according to the inside frequency domain response fluctuation parameter of each frequency band of terminal in during this period, the inside frequency domain response fluctuation parameter of determining one or more frequency bands is during less than the frequency band that reported, report the inside frequency domain response fluctuation parameter of these frequency bands, after then the base station receives the inside frequency domain response fluctuation parameter of terminal to report, this terminal is carried out frequency domain dispatching again according to these information.Here, can adopt the mode of upgrading REP-RSP message midband information to report these frequency band positional informations and CINR value.
It more than is explanation to first embodiment of the invention, in the first embodiment of the present invention, the information of terminal to report has comprised the inside frequency domain response undulating value of frequency band, and needs the base station to select bandwidth assignment to give terminal according to the inner frequency domain response undulating value of the frequency band of terminal to report again.And in the second embodiment of the present invention, the inside frequency domain response undulating value that does not comprise frequency band in the information of terminal to report, then need not to change existing message, and base station side only need carry out flow process same as the prior art and get final product, below the second embodiment of the present invention be described.
In the second embodiment of the invention, adopt non-AMC pattern terminal handling process as shown in Figure 5, wherein step 501 is all identical with the flow process shown in Fig. 2 to step 503, in step 504, terminal at first selects inner frequency domain response undulating value to report the frequency band of thresholding less than predefined inner frequency domain response undulating value in the terminal, in these frequency bands, select four frequency bands that the CINR value is best again, and will report the base station according to the positional information and the CINR value of the selected frequency band of CINR value.Here, if according to inner frequency domain sound to answering undulating value to report the selected number of frequency bands of thresholding to be less than or equal to four, then directly selected this positional information and CINR value less than four frequency bands is reported the base station.
Remaining handling process is all same as the prior art in the present embodiment.
More than be explanation, in concrete implementation process, can carry out suitable improvement, to adapt to the concrete needs of concrete condition method of the present invention to the specific embodiment of the invention.Therefore be appreciated that according to the specific embodiment of the present invention just to play an exemplary role, not in order to restriction protection scope of the present invention.
Claims (20)
1, a kind of frequency domain dispatching method is applied within a symbol to realize it is characterized in that this method comprises in the multi-carrier transmission technology that a plurality of users insert simultaneously:
A, obtain the inside frequency domain response fluctuation parameter of each frequency band in the signal that terminal receives;
B, this terminal is carried out frequency domain dispatching according to the inside frequency domain response fluctuation parameter of described each frequency band.
2, method according to claim 1 is characterized in that, described step B comprises:
B11, terminal be according to N less frequency band of inner frequency domain response fluctuation of inside frequency domain response fluctuation parameter acquiring of each frequency band, and the fluctuate information of less frequency band of the inside frequency domain response that is obtained is reported the base station, and wherein N is the integer more than or equal to 1;
Frequency domain dispatching is carried out according to the band information of terminal to report in B12, base station.
3, method according to claim 2 is characterized in that, described terminal according to N less frequency band of inner frequency domain response fluctuation of inside frequency domain response fluctuation parameter acquiring of each frequency band is:
When described terminal adopted non-self-adapting modulation and coding AMC pattern, terminal reported thresholding to obtain N the minimum frequency band of inner frequency domain response fluctuation according to the inside frequency domain response fluctuation parameter and the predefined inner frequency domain response undulating value of each frequency band;
When described terminal adopted the AMC pattern, terminal was according to N frequency band of inside frequency domain response fluctuation parameter acquiring of each frequency band, this N the frequency band that the inner frequency domain response of frequency band fluctuates and reported less than this terminal.
4, method according to claim 2 is characterized in that, among the described step B11 inside less band information of frequency domain response fluctuation that is obtained is reported the base station and further comprises before:
Terminal is obtained the fluctuate frequency domain mass parameter of less frequency band of described N inner frequency domain response, and selects M frequency band quality frequency band preferably according to the frequency domain mass parameter of being obtained, and wherein M is more than or equal to 1 and smaller or equal to the integer of N;
The information of described frequency band that the inside frequency domain response fluctuation of being obtained is less reports the base station and is: the information of M the better frequency band of quality of described selection is reported the base station.
5, method according to claim 4 is characterized in that, when described terminal adopted non-AMC pattern, described N was the integer greater than 4, and the value of described M is 4.
6, method according to claim 4 is characterized in that, described terminal according to the frequency domain mass parameter obtained select M frequency band quality preferably frequency band be:
When described terminal adopted non-AMC pattern, terminal was according to frequency domain mass parameter of being obtained and predefined selection quantity M ', selected M ' individual (M ' smaller or equal to described N time) or N (M ' greater than described N time) the top-quality frequency band of frequency band;
When described terminal adopted the AMC pattern, terminal was selected M frequency band according to the frequency domain mass parameter of being obtained, and the frequency band quality of this M frequency band is better than the frequency band that this terminal has reported.
7, method according to claim 4 is characterized in that, the information of described M the better frequency band of quality is: the frequency band position of M the better frequency band of quality and frequency domain mass parameter.
8, method according to claim 1 is characterized in that, described step B comprises:
B21, terminal report the inside frequency domain response fluctuation parameter of the frequency band that is obtained to the base station;
Frequency domain dispatching is carried out according to the inside frequency domain response fluctuation parameter of the frequency band of terminal to report in B22, base station.
9, method according to claim 8 is characterized in that, further comprises before the described step B21:
Terminal is obtained m frequency domain quality frequency band preferably according to the frequency domain mass parameter of frequency band, and wherein m is the integer more than or equal to 1;
Among the then described step B21, terminal reports the inside frequency domain response fluctuation parameter of the frequency band that is obtained to be to the base station:
Terminal reports the inside frequency domain response fluctuation parameter of described m the better frequency band of frequency domain quality to the base station.
10, method according to claim 9 is characterized in that, described terminal according to the frequency domain mass parameter of frequency band obtain m frequency domain quality preferably frequency band be:
When described terminal adopted non-AMC pattern, terminal was selected m the top-quality frequency band of frequency domain according to frequency domain mass parameter of being obtained and predefined selection quantity m;
When described terminal adopted the AMC pattern, terminal was obtained m frequency band according to the frequency domain mass parameter of being obtained, and the frequency band quality of this m frequency band is better than the frequency band that this terminal has reported.
11, method according to claim 9 is characterized in that, described terminal also reports the frequency band position and the frequency domain mass parameter of described m the better frequency band of frequency domain quality to the base station.
12, arbitrary described method in 11 according to Claim 8 is characterized in that described step B22 comprises:
N the less frequency band of frequency domain response fluctuation selected according to the inside frequency domain response fluctuation parameter of the frequency band of terminal to report in the base station, and selects one or more bandwidth assignment to give this terminal in selected frequency band, and described n is the integer more than or equal to 1.
13, method according to claim 12 is characterized in that, described base station selects n the less frequency band of frequency domain response fluctuation to be according to the inside frequency domain response fluctuation parameter of the frequency band of terminal to report:
The base station obtains the frequency band of n frequency domain response fluctuation minimum according to the inner frequency domain response fluctuation of the frequency band max threshold that sets in advance in the inside frequency domain response fluctuation parameter of the frequency band of terminal to report and this base station.
14, according to arbitrary described method in the claim 1 to 11, it is characterized in that, when described terminal adopts non-AMC pattern, obtain the time domain fluctuation parameter and the frequency domain mass parameter of each frequency band in phase in frequency band AMC mode assignments, satisfy when entering the condition of AMC pattern determining according to time domain fluctuation parameter and frequency domain mass parameter, this terminal is carried out the described step of obtaining the inside frequency domain response fluctuation parameter of each frequency band in the signal that is received.
15, according to arbitrary described method in the claim 1 to 11, it is characterized in that, when described terminal adopts non-AMC pattern, after the described steps A this terminal at the mean value of the inside of each frequency band frequency domain response fluctuation parameter less than predefined inner frequency domain response fluctuation average thresholding, and/or, the inside frequency domain response fluctuation parameter of each frequency band all less than in the terminal during predefined inner frequency domain response fluctuation max threshold, is just carried out described step B.
According to arbitrary described method in the claim 1 to 11, it is characterized in that 16, when described terminal adopted the AMC pattern, described step B is: the base station was non-AMC pattern with the mode switch of terminal;
Then described terminal is determined the inside frequency domain response fluctuation parameter that there is frequency band when predefined frequency domain response undulating value discharges thresholding in self according to the inside frequency domain response fluctuation parameter of each frequency band that is obtained in frequency band AMC pattern release period, informing base station switches to non-AMC pattern, carries out described step B then.
17, according to arbitrary described method in the claim 1 to 11, it is characterized in that, when described terminal adopts the AMC pattern, further comprise after the described steps A: terminal during frequency band AMC mode assignments in according to the inside frequency domain response fluctuation parameter of each frequency band, the inside frequency domain response fluctuation parameter of determining one or more frequency bands is during less than the frequency band that reported, report the inside frequency domain response fluctuation parameter of these frequency bands, among the then described step B, the base station is carried out frequency domain dispatching according to these information to this terminal after receiving the inside frequency domain response fluctuation parameter of terminal to report.
According to arbitrary described method in the claim 4,5,6,7,9,10 or 11, it is characterized in that 18, described frequency domain mass parameter is a Carrier interference ratio.
According to arbitrary described method in the claim 1 to 11, it is characterized in that 19, described inner frequency domain response fluctuation parameter is: the channel response variance of the inner subcarrier of frequency band.
20, according to arbitrary described method in the claim 1 to 11, it is characterized in that, the inside frequency domain response fluctuation parameter of described frequency band is: terminal is in frequency band AMC mode assignments in the phase or in frequency band AMC pattern release period, according to the inner frequency domain response fluctuation of the determined frequency band of the targeting signal of the arbitrary frame that is received parameter, or the comprehensive described frequency band AMC mode assignments phase is interior or the inner frequency domain response fluctuation of the determined frequency band of the targeting signal parameter of interior each frame that is received of described frequency band AMC pattern release period.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102300250A (en) * | 2010-06-23 | 2011-12-28 | 电信科学技术研究院 | Method for reporting measurement report by UE (User Equipment) and main service cell reconfiguration method and system |
| CN101488829B (en) * | 2009-01-24 | 2011-12-28 | 华为技术有限公司 | Service processing method, base station and terminal combining adaptive code |
| CN102835140A (en) * | 2010-04-08 | 2012-12-19 | 高通股份有限公司 | Methods and apparatus for determining and assigning spectrum for wireless communications |
| CN101772933B (en) * | 2007-08-07 | 2015-06-17 | 夏普株式会社 | Communication device and reception quality information generation method |
| CN108353413A (en) * | 2015-11-09 | 2018-07-31 | 瑞典爱立信有限公司 | The downlink control channel configuration of feedback auxiliary |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101772933B (en) * | 2007-08-07 | 2015-06-17 | 夏普株式会社 | Communication device and reception quality information generation method |
| CN101488829B (en) * | 2009-01-24 | 2011-12-28 | 华为技术有限公司 | Service processing method, base station and terminal combining adaptive code |
| CN102835140A (en) * | 2010-04-08 | 2012-12-19 | 高通股份有限公司 | Methods and apparatus for determining and assigning spectrum for wireless communications |
| CN102835140B (en) * | 2010-04-08 | 2016-06-08 | 高通股份有限公司 | For determining and assign the method and apparatus of the frequency spectrum that is used for radio communication |
| CN102300250A (en) * | 2010-06-23 | 2011-12-28 | 电信科学技术研究院 | Method for reporting measurement report by UE (User Equipment) and main service cell reconfiguration method and system |
| CN108353413A (en) * | 2015-11-09 | 2018-07-31 | 瑞典爱立信有限公司 | The downlink control channel configuration of feedback auxiliary |
| CN108353413B (en) * | 2015-11-09 | 2023-08-18 | 瑞典爱立信有限公司 | Feedback assisted downlink control channel configuration |
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| CN100579100C (en) | 2010-01-06 |
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