CN101854192B - Frequency hopping method and system supporting multi-user reusing-one-slot - Google Patents
Frequency hopping method and system supporting multi-user reusing-one-slot Download PDFInfo
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- 238000005259 measurement Methods 0.000 claims abstract description 36
- 230000009191 jumping Effects 0.000 claims description 101
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- H—ELECTRICITY
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- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/69—Spread spectrum techniques
- H04B1/713—Spread spectrum techniques using frequency hopping
- H04B1/7143—Arrangements for generation of hop patterns
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/69—Spread spectrum techniques
- H04B1/713—Spread spectrum techniques using frequency hopping
- H04B1/715—Interference-related aspects
- H04B2001/7154—Interference-related aspects with means for preventing interference
Abstract
The invention discloses a frequency hopping method supporting multi-user reusing-one-slot (MUROS). The method comprises a step of performing dynamic adjustment on a mobile allocation indicator offset (MAIO) hopping selection table of a second sub-channel user according to a user measurement report so as to realize interference diversity. The invention also discloses a frequency hopping system supporting the MUROS. The system comprises an adjusting unit used for performing the dynamic adjustment on the MAIO hopping selection table of the second sub-channel user according to the user measurement report so as to realize the interference diversity. By adopting the method and the system of the invention, an interference diversity effect on the MUROS can be realized; a better interference diversity effect in the MUROS environment can be achieved; and overall signal receiving quality can be improved at the same time.
Description
Technical field
The present invention relates to a kind of support multi-user reusing-one-slot (MUROS, M
ul
ti-U
seRReusing-One-Slot) frequency hopping relates in particular to a kind of frequency-hopping method and system that supports MUROS in global system for mobile communications (GSM, Global System of Mobile communications) network.
Background technology
In traditional network, in the GSM network, in order to take full advantage of existing frequency, to improve the utilance that has frequency now, frequency hopping has been widely applied in the GSM network.Two Main Functions of frequency hopping are realized frequency diversity and interference diversity exactly.Wherein, frequency diversity refers to: the ability of anti-Rayleigh fading; Interference diversity refers to: suppress other same abilities of the interference signal of multiplexing residential quarter frequently.
In recent years, be accompanied by people to the increase of mobile voice service demand, the GSM network is also in continuous expansion, and the mobile wireless resource is more and more nervous.Thereupon, the technology of many raising spectrum utilization efficiencies occurred, the MUROS technology is wherein a kind of.The core concept of MUROS technology is exactly: a channel that will physically exist, and namely a conventional channel in the residential quarter is divided into two or more pseudo channels, and a plurality of pseudo channels are also referred to as the subchannel of this conventional channel.Traditional user's carrying is a channel bearing and accesses a user, adopts the MUROS technology to be different from traditional user's carrying, and because a channel has comprised two or more subchannels, a channel just can carry and access two or more users simultaneously.The MUROS technology also can be understood as: can carry simultaneously two or more users' business datum on a corresponding time slot of channel, thereby adopt the MUROS technology to improve the utilization ratio of frequency spectrum, and increase simultaneously the power system capacity of whole system.
But, in order to improve spectrum utilization efficiency and power system capacity, in traditional network, such as using this MUROS technology in the GSM network, owing to carrying simultaneously two or more users' business datum at same time slot, will certainly increase the interference strength between same time slot user, cause signal receiving quality to descend.Therefore, in the GSM network of supporting the MUROS technology, can the interference diversity effect that bring into play fully frequency hopping be the key that improves the anti-MUROS interference performance of gsm system.Yet existing frequency hopping is mainly by distributing fixing MAIO value, realizes the frequency diversity effect of frequency hopping, can not play the interference diversity effect to MUROS.Wherein, MAIO refers to the frequency hopping pointer offset, and the residential quarter is frequency hopping pointer offset of each channel allocation usually.
Summary of the invention
In view of this, main purpose of the present invention is to provide frequency-hopping method and the system of a kind of MUROS of support, can realize the interference diversity effect to MUROS, reaches interference diversity effect better under the MUROS environment, can also improve the quality of reception of overall signal simultaneously.
For achieving the above object, technical scheme of the present invention is achieved in that
A kind of frequency-hopping method of supporting multi-user reusing-one-slot, the method comprises: determine according to user's measurement report that MAIO jumps and select weights, jump according to described MAIO and select weights, distribute each jumping to select table element to jump in the choosing table shared separately ratio at MAIO, select table element and each jumping to select table element shared ratio separately according to each jumping, generate MAIO and jump the choosing table; The MAIO of the second subchannel user's frequency hopping pointer offset is jumped the choosing table dynamically adjust, realize interference diversity.
Wherein, also comprise when carrying out described dynamic adjustment: according to the status indicator of current the second subchannel, select to carry out different operations.
Wherein, in the situation that the status indicator of described current the second subchannel is 0, when having the user to access described the second subchannel, the residential quarter is jumped by the signaling MAIO that the second subchannel is corresponding and is selected list item to notify to after the user who accesses, and the status indicator of revising the second subchannel is 1;
In the situation that the status indicator of current the second subchannel is 1, readjust according to user's measurement report when the residential quarter MAIO corresponding to the second subchannel jump select list item after, the status indicator of revising the second subchannel is 2;
In 2 situations that the status indicator of current the second subchannel is, after the MAIO that the second subchannel is corresponding after the residential quarter will be upgraded by signaling jumped and selects the user of list item to the second subchannel, the status indicator of revising the second subchannel was 1;
In the situation that the status indicator of current the second subchannel is 1 or 2, when the user on needs deletion the second subchannel, after deletion action was carried out in the residential quarter, the status indicator of revising the second subchannel was 0.
Wherein, described MAIO jumping choosing table is dynamically adjusted and is specially:
Determine according to described user's measurement report that MAIO jumps and select weights;
Jumping according to described MAIO selects weights to generate MAIO jumping choosing table.
Wherein, determine according to described user's measurement report that MAIO jumps and select weights, be specially: determine according to the credit rating of described user's measurement report that MAIO jumps and select weights.
Wherein, when selecting weights to generate described MAIO jumping choosing table according to described MAIO jumping, the generating mode of employing comprises:
Jump according to current MAIO and select weights, distribute each jumping to select table element to jump in the choosing table shared separately ratio at MAIO; Select table element and each jumping to select table element shared ratio separately according to each jumping, generate MAIO and jump the choosing table.
Wherein, when selecting weights to generate described MAIO jumping choosing table according to described MAIO jumping, the generating mode of employing comprises:
Set up in advance the mapping table that different proportion and MIAO jump the corresponding relation of choosing table, jump according to current MAIO and select weights, distribute each jumping to select table element to jump in the choosing table shared separately ratio at MAIO, by the described mapping table of described ratio inquiry, generate MAIO and jump the choosing table.
A kind of frequency-hopping system of supporting multi-user reusing-one-slot, this system comprises: adjustment unit, select weights for determining that according to user's measurement report MAIO jumps, jump according to described MAIO and select weights, distribute each jumping to select table element to jump in the choosing table shared separately ratio at MAIO, select table element and each jumping to select table element shared ratio separately according to each jumping, generate MAIO and jump the choosing table; MAIO jumping choosing table to the second subchannel user is dynamically adjusted, and realizes interference diversity.
Wherein, described adjustment unit comprises further that MAIO jumps and selects weights determination module and MAIO to jump the choosing table to generate module; Wherein,
Described MAIO jumps and selects the weights determination module, selects weights for determining that according to user's measurement report MAIO jumps, and MAIO is jumped select weights to send to described MAIO jumping choosing table to generate module;
Described MAIO jumps the choosing table and generates module, be used for jumping according to the MAIO that receives and select weights, distribute each jumping to select table element to jump in the choosing table shared separately ratio at MAIO, select table element and each jumping to select table element shared ratio separately according to each jumping, generate MAIO and jump the choosing table.
Wherein, this system also comprises: the operation selected cell, be used for the status indicator according to current the second subchannel, and select to carry out different operations.
The present invention dynamically adjusts the second subchannel user's MAIO jumping choosing table according to user's measurement report, realizes interference diversity.
Employing the present invention can realize the interference diversity effect to MUROS, makes the legacy network of supporting MUROS such as the GSM network, can improve the utilization ratio of frequency spectrum and the power system capacity of whole system, can reduce again the interference strength between same time slot user.And because this interference diversity is inhomogeneous interference diversity, the interference diversity effect that can reach can satisfy each disturbed user's different needs, therefore, adopt the present invention, can reach interference diversity effect better under the MUROS environment, can also improve the quality of reception of overall signal simultaneously.
Description of drawings
Fig. 1 supports the frequency hopping effect schematic diagram of MUROS technology in prior art;
Fig. 2 is that the present invention generates the realization flow schematic diagram that MAIO jumps the choosing table;
Fig. 3 is frequency hopping effect schematic diagram of proportionally jumping choosing of the present invention.
Embodiment
Basic thought of the present invention is: according to user's measurement report, the second subchannel user's MAIO jumping choosing table is dynamically adjusted, realized interference diversity.
Be described in further detail below in conjunction with the enforcement of accompanying drawing to technical scheme.
Below prior art and the present invention are compared elaboration, to embody better the present invention with respect to the advantage of prior art.
With regard to prior art, in existing frequency hopping, the frequency point sets of the corresponding one group of limited frequency hopping in each residential quarter is denoted as: MA={f
1, f
2, f
3... }; Each residential quarter is corresponding a positive integer HSN (HSN) also, and the frequency hopping sequence of pointers by HSN can obtain the upper frequency hopping of MA is denoted as: MAI={i
1, i
2, i
3... }; This residential quarter is also frequency hopping pointer offset of every channel allocation, is denoted as: MAIO={o
1, o
2, o
3... }.Wherein, the channel here all refers to the channel except Broadcast Control Channel usually.These three parameters of MA, HSN and MAIO have been arranged so, every channel is at a time jumped on a specific frequency.Adopt following formula (1) expression m bar channel at n frequency constantly, can calculate by formula (1) the frequency sequence that in the residential quarter, all channels are corresponding.
F
mn＝MA[(i
n+o
m)mod L] (1)
In formula (1), F
mnRepresent that m bar channel is at n frequency constantly; i
nRepresent the frequency hopping pointer on n moment MA; o
mRepresent n frequency hopping pointer offset constantly; Mod represents modulo operation, and L is the length of finite aggregate MA.
Below for a specific example above-mentioned existing frequency hopping is set forth.
Example one is: be the fixing MAIO value of the second subchannel user assignment.In this example, but the frequency that the residential quarter has 4 frequency hoppings is set, i.e. MA={1,4,7,10}; In order to simplify, only consider the frequency hopping sequence of pointers of 8 frames in the present example, i.e. MAI={1,3,2,0,2,0,1,3}; This residential quarter has 3 channels, supposes that in 3 channels, the MAIO of the first subchannel is: { 0,1,2}.Current had 3 user M1, M2, and M3, and be M1, M2, M3 have distributed the first subchannel of each channel in the channel of 3 of this residential quarters simultaneously.In order to improve spectrum utilization efficiency and power system capacity, afterwards, then access two second subchannel user M4 and M5.Be respectively M4 and M5 and distribute 2 the second subchannels because a certain moment only have 3 activating frequency points, so the MAIO value of M4 and M5 should be taken out two from the MAIO set of the first subchannel.If the MAIO that we arrange these 5 users for 0,1,2,1,2}, and the distribution of this MAIO is changeless, the corresponding frequency sequence of M1～M5 is as shown in table 1, the frequency sequence in table 1 can calculate by above-mentioned formula (1); The corresponding frequency hopping effect of M1～M5 as shown in Figure 1.Here, table 1 is a frequency sequence table of supporting the MUROS technology; Fig. 1 supports the frequency hopping schematic diagram of MUROS technology in prior art.Wherein, M1, M2, M3 is the legacy user in legacy network, and when legacy network was the GSM network, the legacy user was GSM user, in order to improve spectrum utilization efficiency and power system capacity, use the MUROS technology in the GSM network, non-traditional user M4 and the M5 of increase are the second subchannel user.
Table 1
In Fig. 1, the shared resource of M1 is filled with the line that anyhow intersects and is represented, namely
The shared resource of M2 is filled with horizontal line and is represented, namely
The shared resource of M3 is filled with vertical line and is represented, namely
The shared resource of M4 is filled with sparse point and is represented, namely
The shared resource of M5 is filled with intensive point and is represented, namely
Unoccupied resource is not filled expression, namely
So, can intuitively find out from Fig. 1, although adopt existing frequency hopping can realize the effect of the frequency diversity of frequency hopping,, because M2 uses identical MAIO with M4, M3 and M5, therefore, M2 as shown in table 1 is always identical with M5 frequency sequence with M4, M3.In Fig. 1, originally belong to M2, the channel resource that M3 monopolizes is shared by M4 and M5 and is taken, and M1 monopolizes a channel resource all the time, do not shared by M4 and M5 and take, as seen, traditional GSM user is not all shared equally by the second subchannel user and takies, cause in traditional GSM user, the signal difference between each user is large.That is to say, by the GSM user of the second subchannel CU resource, signal is relatively very poor; And not by the GSM user of the second subchannel CU resource, signal is relatively fine.As seen, adopt existing frequency hopping, can not realize the effect of frequency hopping interference diversity.
If adjust the second subchannel user's MAIO, traditional GSM user is all shared equally by the second subchannel user take, can realize interference diversity.For instance, such as by not distributing fixedly MAIO value, select sequence number to jump jumping choosing on the choosing table at MAIO and adopt to jump by MAIO, traditional GSM user is all shared equally by the second subchannel user take, cause in traditional GSM user, the signal difference between each GSM user is little.Like this, the signal difference between each GSM user is just even.But because this interference diversity that takies realization of sharing equally is uniform interference diversity, therefore, the interference diversity effect that can reach can not satisfy each GSM user's different needs.and, signal difference between each GSM user is even, in fact the quality of reception variation that means overall signal under the MUROS environment, that is to say, traditional GSM user is as disturbed user, regardless of before signal receiving quality, after being disturbed by the second subchannel user, taken owing to sharing equally to disturb, therefore, can't need to regulate the ratio of sharing that takies of disturbing according to each GSM user's difference, thereby it is poorer to cause originally the poor GSM user of signal receiving quality to be shared equally disturbing to take rear signal receiving quality, especially the poor especially GSM user of signal receiving quality is shared equally and possibly can't be received signal after interference takies.
In sum, the shortcoming that prior art exists is: although adopt prior art can simply realize frequency hopping, mobile radio station is not had extra requirement yet, do not need to increase new signaling and also can play the effect of frequency diversity.But the employing prior art can not play the interference diversity effect to the second subchannel user.Namely enable to realize interference diversity, but the interference diversity effect that reaches is also bad, and can causes the quality of reception variation of overall signal under the MUROS environment.
And the present invention dynamically adjusts the second subchannel user's MAIO jumping choosing table according to user's measurement report, realizes interference diversity.User's measurement report here refers to disturbed user's measurement report, adopt the present invention, not only realize interference diversity, and can disturb according to the MUROS of disturbed user's quality of reception state assignment varying strength, thereby reached interference diversity effect better under the MUROS environment.That is to say, can regulate the second subchannel according to each disturbed user's the different qualities of reception and disturb the ratio of sharing, such as, concerning the relatively poor disturbed user of script signal receiving quality, less the second subchannel is disturbed share to the relatively poor disturbed user of this signal receiving quality, thereby improved the poor disturbed user's of this signal receiving quality signal receiving quality; Concerning the script signal receiving quality preferably disturbed user, the second more subchannel is disturbed share to this signal receiving quality disturbed user preferably; Concerning the poor especially disturbed user of signal receiving quality, the second subchannel is not disturbed and share to the poor especially disturbed user of this signal receiving quality, thereby make this interference user can not be subject to the interference of the second subchannel.Thus, adopt the present invention just to avoid the poor disturbed user of the related script signal receiving quality of prior art to be shared equally and disturb rear signal receiving quality poorer, especially the poor especially disturbed user of signal receiving quality is shared equally and possibly can't have been received the situation of signal after interference takies.
Below frequency-hopping method and the system of support of the present invention MUROS is specifically addressed.
A kind of frequency-hopping method of supporting MUROS, the method comprises: according to user's measurement report, the second subchannel user's MAIO jumping choosing table is dynamically adjusted, realized interference diversity.
Here, user's measurement report further comprises: the information such as signal receiving quality or incoming level.
Here, when the second subchannel user's MAIO jumping choosing table was dynamically adjusted, the adjustment mode of employing comprised: when the first subchannel there is no user's measurement report at this moment, jump according to acquiescence MAIO and select weights, initially adjust the second subchannel MAIO and jump the choosing table; Perhaps, if there has been user's measurement report this moment, readjust the MAIO jumping choosing table of the second subchannel according to user's measurement report.
Also comprise when preferably, the second subchannel user's MAIO jumping choosing table dynamically being adjusted: according to the status indicator of current the second subchannel, select to carry out different operations.Wherein, the second sub-channel sign refers to, and the residential quarter arranges the value of a current state for each second subchannel, for the difference of this value, the second subchannel is selected to carry out different operations.Wherein, for different operations, comprise following several situation:
The first situation: the status indicator at current the second subchannel is 0 o'clock, represents this channel idle.When having the user to access described the second subchannel, the residential quarter is jumped by the signaling MAIO that the second subchannel is corresponding and is selected list item to notify to after the user who accesses, and the status indicator of revising the second subchannel is 1.
The second situation: the status indicator at current the second subchannel is 1 o'clock, represents that MAIO corresponding to this channel occupancy and this channel jumps to select list item not to be updated.Here it is to be noted: just because of do not upgrade, so this moment, the residential quarter did not need to select list item to notify to the user who accesses by the signaling MAIO jumping that the second subchannel is corresponding.Readjusted according to user's measurement report when the residential quarter MAIO corresponding to this second subchannel jump select list item after, the status indicator of revising this second subchannel is 2.
The third situation: the status indicator at current the second subchannel is 2 o'clock, represents that MAIO corresponding to this channel occupancy and this channel jumps to select list item to be updated.After the MAIO that the second subchannel is corresponding after the residential quarter will be upgraded by signaling jumped and selects the user of list item to the second subchannel, the status indicator of revising the second subchannel was 1.
The 4th kind of situation: be 1 or 2 o'clock at the status indicator of current the second subchannel, represent this channel occupancy.When needs were deleted user on this second subchannel, after deletion action was carried out in the residential quarter, the status indicator of revising the second subchannel was 0.
Wherein, jump the choosing table for generating MAIO, as shown in Figure 2, it specifically comprises the following steps:
Here, so-called MAIO jumps and selects weights to refer to: the weights of expression the first disturbed intensity of subchannel.
Here, the concrete processing procedure of step 101 is: determine according to the credit rating of user's measurement report that MAIO jumps and select weights.
Here, in step 102, generating new MAIO jumps when selecting table, the generating mode that adopts comprises dual mode, first kind of way is the mode that generates in real time, is specifically: jump according to current MAIO and select weights, distribute each jumping to select table element to jump in the choosing table shared separately ratio at MAIO, select table element and each jumping to select table element shared ratio separately according to each jumping afterwards, generate MAIO and jump the choosing table.Wherein, the so-called jumping selects table element to refer to: MAIO jumps the MAIO value that can jump choosing in the choosing table.The second way: in order to simplify the operation, be different from according to current MAIO and jump the first kind of way of selecting weights to distribute in real time, the second way is the mode that generates according to mapping table, be specifically: set up in advance the mapping table that different proportion and MIAO jump the corresponding relation of choosing table, jump according to current MAIO and select weights, distribute each jumping to select table element to jump in the choosing table shared separately ratio at MAIO, by the described mapping table of this ratio inquiry, generate MAIO and jump the choosing table.
Preferably, in the second way, generate each jumping and select table element after MAIO jumps in the choosing table shared separately ratio, inquire about described mapping table, will be therewith the immediate ratio of ratio, namely MAIO corresponding to the ratio in described mapping table jumps the choosing table, jumps the choosing table as the MAIO of this adjustment.That is to say, in the second way, need to first be modified to immediate ratio in this ratio that sets in advance, and then ratio immediate according to this generates corresponding MAIO jumping choosing table.Such as can adopt least square method, select with this ratio that sets in advance in immediate ratio inquire about described mapping table, to obtain MAIO jumping choosing table.
Here the MAIO jumping choosing table that it is pointed out that generation is variable length, as long as guarantee to meet corresponding proportionate relationship; If certainly do not consider to waste the signaling space and wasting in the preliminary treatment situation under the prerequisite of cell side memory space, it can be fixed length that MAIO jumps the choosing table.In some situation, some specific proportions can not directly generate jumps the choosing table, also need to carry out follow-up correction, for instance, when having 3 disturbed users, the first situation is: when having 3 the second subchannel users simultaneously, described ratio necessarily need to be corrected for 1: 1: 1, and the MAIO that could generate these 3 the second subchannel users jumps the choosing table; The second situation is: when 2 the second subchannel users were arranged, in described proportionate relationship, any two ratio sums should be more than or equal to the 3rd ratio, and the MAIO that could generate these 2 the second subchannel users jumps the choosing table; The third situation is: when only having 1 the second subchannel user, the MAIO that any ratio can generate this second subchannel user jumps the choosing table.Certainly in order to simplify, can pre-establish the typical proportions that meets constraints, special proportionate relationship need to first be modified to immediate typical proportions, and then inquires about this mapping table and obtain MAIO and jump the choosing table, can avoid like this frequent updating MAIO to jump the network signal burden that the choosing table brings.
Here it is to be noted, the method further comprises: the second subchannel user jumps according to the MAIO jumping choosing table of dynamic adjustment and selects MAIO, realize different jumping choosing strategies, thereby, adopt the present invention not only can make the second subchannel user realize inhomogeneous diversity on the good and bad different disturbed user of signal receiving quality, can reach interference diversity effect better under the MUROS environment; And adopt the present invention can also improve and improve signal quality whole under the MUROS environment.
Wherein, for jumping the choosing strategy, jump and select strategy to comprise three kinds of situations, the first situation: relatively poor or disturbed user that incoming level is less shares less MUROS and disturbs to signal receiving quality; The second situation: give signal receiving quality better or the larger disturbed user of incoming level shares more MUROS and disturbs; The third situation: poor especially or incoming level is special hour when the disturbed subscriber signal quality of reception, can also select not share on this disturbed user the strategy that MUROS disturbs.Like this, finally just can reach whole residential quarter received signal quality state preferably.
Embodiment of the method is: according to user's measurement report, change MAIO jumping corresponding to the first subchannel and select weights, this MAIO jumps and selects weights to be used for generating the second subchannel user's MAIO jumping choosing table, and the create-rule of this MAIO jumping choosing table is: jump by MAIO and select weights to distribute the jumping of different proportion to select table element, MAIO jumps and selects MAIO value corresponding to the first large subchannel of weights so, the number of jumping appearance in the choosing table at MAIO is just many, otherwise number is just few.In this method embodiment, the MAIO jumping is selected weights to be the MAIO jumping and is selected the probability weights, comprises the following steps:
The frequency hopping frequency point sets of step 210, original allocation residential quarter is the MA set, and HSN HSN.
Here, distributing the MA set length of this residential quarter is 4, and the transceiver number is 3.
The MAIO of all the first subchannels of step 211, original allocation residential quarter.
Here, distribute the MAIO value of these 3 the first subchannels in residential quarter to be respectively 0,1 and 2, that is to say that the MAIO value of 3 the first subchannels is fixed values.
The MAIO of all the second subchannels of step 212, original allocation residential quarter jumps the choosing table.
Here, distribute the MAIO jumping choosing table of these 3 the second subchannels in residential quarter to be all 0,1,2} that is to say, the MAIO value of 3 the second subchannels is not fixed value, but choose from the set of this MAIO jumping choosing table.
Step 213, the disturbed user of access and the second subchannel user.
Here, 3 disturbed user M1, M2, M3 are assigned to 3 the first subchannels, and the second subchannel user M4 and M5 are linked into 2 the second subchannels.
Step 214, disturbed user be to signal receiving quality, or other optional parameters are such as the credit rating information such as incoming level are measured, and user's measurement report is passed to the residential quarter by signaling.
Here, signal receiving quality divides 8 grade Q={0, and 1,2,3 ... 7}, the Q value is larger, represents that its signal receiving quality is poorer, and namely the error rate (BER) is higher, and as shown in the following Table 2, table 2 is a table of expression signal receiving quality grade.
| Credit | Implication | |
| 0 | BER＜0.2％ | |
| 1 | 0.2％＜BER＜0.4％ | |
| 2 | 0.4％＜BER＜0.8％ ... | |
| 6 | 6.4％＜BER＜12.8％ | |
| 7 | 12.8％＜BER |
Table 2
Step 215, residential quarter are calculated MAIO according to one or more user's measurement reports and are jumped and select the probability weights, adopt the integer average of the signal receiving quality grade of 4 measuring periods to jump as MAIO and select the probability weights.
Here, adopt following formula (2) to calculate jumping and select the probability weights, and the P in formula (2)
iExpression MAIO jumps and selects probability weights, i=1,2,3; Q
i1～Q
i4The signal receiving quality grade that represents respectively 4 measuring periods.
P
i＝(Q
i1+Q
i2+Q
i3+Q
i4)/4 (2)
Here, the MAIO of 3 the first subchannels jumps and selects the probability weights to be respectively: P1=5, P2=6, P3=3.Select the probability weights larger when MAIO jumps, represent that this disturbed user's signal receiving quality is poorer.
Step 216, according to P1, P2, the MAIO value that P3 generates all the first subchannels of this residential quarter appears at MAIO and jumps probability ratio in the choosing table, adopts following formula (3) to calculate, and the MAIO value of 3 the first subchannels appears at the probability ratio in MAIO jumping choosing table and is:
(8-P1)∶(8-P2)∶(8-P3)＝3∶2∶5 (3)
Here it is to be noted: select the computing formula of probability weights for the computing formula of probability ratio and jumping before, just in this example application can have other computational methods certainly, for example, and P
i=1/ (Q
i1+ Q
i2+ Q
i3+ Q
i4), proportionate relationship is P1: P2: P3; Perhaps, P
i=8-(Q
i1+ Q
i2+ Q
i3+ Q
i4)/4, proportionate relationship are P1: P2: P3; Perhaps, P
i=8-(Q
i1+ Q
i2)/2, proportionate relationship are P1: P2: P3 etc.
Step 217, appear at MAIO according to the MAIO value of these 3 the first subchannels and jump probability ratio in the choosing table, the MAIO that generates all the second subchannel users jumps the choosing table.When 2 the second subchannel users of access, it is as shown in table 3 that this MAIO jumps the choosing table, and table 3 is that the MAIO that generates in proportion jumps the choosing table.
Table 3
Here it is to be noted, some proportionate relationship can be jumped the choosing table by a plurality of MAIO and be satisfied, for example the proportionate relationship in this example can also generate following table 4 and these two kinds of MAIO of table 5 jump the choosing table, proportionate relationship in this example can also generate more kinds of MAIO and jump the choosing table, this is relevant with the algorithm that generates MAIO jumping choosing table, if adopt the generating mode that sets in advance described mapping table, its result can be just unique.
Table 4
Table 5
Step 218, access the second subchannel user, be: when having the user will access certain second subchannel, at this moment, the status indicator of this second subchannel is 0, represent this channel idle, access this user and jump by signaling MAIO that the second subchannel is corresponding and select list item to notify user to access, and the status indicator of revising the second subchannel is 1.
After step 219, the second subchannel user receive that the list item signaling is selected in this notice MAIO jumping, adopt to jump with this MAIO and select list item to carry out the jumping choosing of MAIO, thereby completed this second subchannel user's frequency hopping strategy.
The MAIO of step 220, renewal the second subchannel jumps the choosing table, is: readjusted the MAIO jumping choosing table of the second subchannel according to user's measurement report when the residential quarter after, the status indicator of modification the second subchannel is 2.
The MAIO of step 221, renewal the second subchannel access user jumps the choosing table, is: after the MAIO jumping that after upgrading by signaling, the second subchannel is corresponding selected list item to the second subchannel access user, the status indicator of revising the second subchannel was 1.
After step 222, the second subchannel user receive that the signaling of list item is selected in this renewal MAIO jumping, adopt this MAIO to jump and select list item to carry out the jumping choosing of MAIO.
Step 223, deletion the second subchannel user are: after the user on this channel of deletion, the status indicator of revising the second subchannel is 0.
Here, the MAIO sequence of front 8 frames of M4, M5 is respectively: { 1,2,2,0,2,2,0,0} is with { 2,0,1,2,1,0,2,2}, its corresponding frequency hopping design sketch as shown in Figure 3.
In Fig. 3, the shared resource of M1 is filled with the line that anyhow intersects and is represented, namely
The shared resource of M2 is filled with horizontal line and is represented, namely
The shared resource of M3 is filled with vertical line and is represented, namely
The shared resource of M4 is filled with sparse point and is represented, namely
The shared resource of M5 is filled with intensive point and is represented, namely
Unoccupied resource is not filled expression, namely
So, can intuitively find out from Fig. 3, because the signal receiving quality of M2 is poor, so after the MAIO jumping selected sequence to adjust, the probability of the independent busy channel of M2 had improved greatly, thereby can improve the signal receiving quality of M2.
Step 220, repeating step 214～step 219 realize that finally whole residential quarter reaches better interference diversity effect.
A kind of frequency-hopping system of supporting MUROS, this system comprises: adjustment unit, be used for according to user's measurement report, the second subchannel user's MAIO jumping choosing table is dynamically adjusted, realize interference diversity.
Here, adjustment unit further comprises: MAIO jumps and selects the weights determination module, and MAIO jumps choosing table generation module.Wherein, MAIO jumps and selects the weights determination module, selects weights for determining that according to user's measurement report MAIO jumps, and MAIO is jumped select weights to send to MAIO jumping choosing table to generate module.The MAIO jumping selects table to generate module, selects weights for select the weights determination module to receive the MAIO jumping from the MAIO jumping, and jumps according to MAIO and select weights to generate MAIO jumping choosing table.
With regard to MAIO jumps choosing table generation module, owing to existing different MAIO to jump choosing table generation mode, therefore, MAIO jumps choosing table generation module two kinds of specific implementations, the first specific implementation is: jumping choosing table generation mode at MAIO is under the state that generates in real time, and MAIO jumps the specific implementation that choosing shows to generate module.The second specific implementation is: jumping choosing table generation mode at MAIO is under the state that generates according to mapping table, and MAIO jumps the specific implementation of choosing table generation module.And under the second specific implementation, adjustment unit comprises that also mapping table arranges module, is used for setting up in advance the mapping table that different proportion and MIAO jump the corresponding relation of choosing table, and sends to MAIO to jump choosing table generation module described mapping table.
Wherein, with regard to the first specific implementation, MAIO jumps the choosing table and generates module, is further used for jumping according to current MAIO and selects weights, distributes each jumping to select table element to jump in the choosing table shared separately ratio at MAIO; Select table element and each jumping to select table element shared ratio separately according to each jumping, generate MAIO and jump the choosing table; With regard to the second specific implementation, MAIO jumps the choosing table and generates module, be further used for from mapping table, module being set and receive described mapping table, jump according to current MAIO and select weights, distribute each jumping to select table element to jump in the choosing table shared separately ratio at MAIO, by the described mapping table of described ratio inquiry, generate MAIO and jump the choosing table.
A kind of frequency-hopping system of supporting MUROS, this system also comprises: the operation selected cell, be used for the status indicator according to current the second subchannel, select to carry out different operations.
Wherein, the operation selected cell has four kinds of specific implementations, the first specific implementation is: the operation selected cell, the status indicator that is further used at current the second subchannel is in 0 situation, the user accesses the second subchannel, the residential quarter is jumped by the signaling MAIO that the second subchannel is corresponding and is selected list item to notify to the user who accesses, and the status indicator of revising the second subchannel is 1; The second specific implementation is: the operation selected cell, the status indicator that is further used at current the second subchannel is in 1 situation, the residential quarter is readjusted MAIO jumping corresponding to the second subchannel according to user's measurement report and is selected list item, and the status indicator of revising the second subchannel is 2; The third specific implementation is: the operation selected cell, the status indicator that is further used at current the second subchannel is in 2 situations, the MAIO that after the residential quarter will be upgraded by signaling, the second subchannel is corresponding jumps and selects list item to the user of the second subchannel, and the status indicator of revising the second subchannel is 1; The 4th kind of specific implementation is: the operation selected cell, and the status indicator that is further used at current the second subchannel is in 1 or 2 situations, the user on deletion the second subchannel, deletion action is carried out in the residential quarter, and the status indicator of revising the second subchannel is 0.
The above is only preferred embodiment of the present invention, is not for limiting protection scope of the present invention.
Claims (10)
1. frequency-hopping method of supporting multi-user reusing-one-slot, it is characterized in that, the method comprises: determine according to user's measurement report that MAIO jumps and select weights, jump according to described MAIO and select weights, distribute each jumping to select table element to jump in the choosing table shared separately ratio at MAIO, select table element and each jumping to select table element shared ratio separately according to each jumping, generate MAIO and jump the choosing table;
The MAIO of the second subchannel user's frequency hopping pointer offset is jumped the choosing table dynamically adjust, realize interference diversity.
2. method according to claim 1, is characterized in that, also comprises when carrying out described dynamic adjustment: according to the status indicator of current the second subchannel, select to carry out different operations.
3. method according to claim 2, it is characterized in that, in the situation that the status indicator of described current the second subchannel is 0, when having the user to access described the second subchannel, the residential quarter is jumped by the signaling MAIO that the second subchannel is corresponding and is selected list item to notify to after the user who accesses, and the status indicator of revising the second subchannel is 1;
In the situation that the status indicator of current the second subchannel is 1, readjust according to user's measurement report when the residential quarter MAIO corresponding to the second subchannel jump select list item after, the status indicator of revising the second subchannel is 2;
In 2 situations that the status indicator of current the second subchannel is, after the MAIO that the second subchannel is corresponding after the residential quarter will be upgraded by signaling jumped and selects the user of list item to the second subchannel, the status indicator of revising the second subchannel was 1;
In the situation that the status indicator of current the second subchannel is 1 or 2, when the user on needs deletion the second subchannel, after deletion action was carried out in the residential quarter, the status indicator of revising the second subchannel was 0.
4. the described method of any one according to claim 1 to 3, is characterized in that, described MAIO jumps dynamic adjustment of choosing table and is specially:
Determine according to described user's measurement report that MAIO jumps and select weights;
Jumping according to described MAIO selects weights to generate MAIO jumping choosing table.
5. method according to claim 4, is characterized in that, determines according to described user's measurement report that MAIO jumps and select weights, is specially: determine according to the credit rating of described user's measurement report that MAIO jumps and select weights.
6. method according to claim 4, is characterized in that, when selecting weights to generate described MAIO jumping choosing table according to described MAIO jumping, the generating mode of employing comprises:
Jump according to current MAIO and select weights, distribute each jumping to select table element to jump in the choosing table shared separately ratio at MAIO; Select table element and each jumping to select table element shared ratio separately according to each jumping, generate MAIO and jump the choosing table.
7. method according to claim 4, is characterized in that, when selecting weights to generate described MAIO jumping choosing table according to described MAIO jumping, the generating mode of employing comprises:
Set up in advance the mapping table that different proportion and MIAO jump the corresponding relation of choosing table, jump according to current MAIO and select weights, distribute each jumping to select table element to jump in the choosing table shared separately ratio at MAIO, by the described mapping table of described ratio inquiry, generate MAIO and jump the choosing table.
8. frequency-hopping system of supporting multi-user reusing-one-slot, it is characterized in that, this system comprises: adjustment unit, select weights for determining that according to user's measurement report MAIO jumps, jump according to described MAIO and select weights, distribute each jumping to select table element to jump in the choosing table shared separately ratio at MAIO, select table element and each jumping to select table element shared ratio separately according to each jumping, generate MAIO and jump the choosing table; MAIO jumping choosing table to the second subchannel user is dynamically adjusted, and realizes interference diversity.
9. system according to claim 8, is characterized in that, described adjustment unit comprises further that MAIO jumps and selects weights determination module and MAIO to jump the choosing table to generate module; Wherein,
Described MAIO jumps and selects the weights determination module, selects weights for determining that according to user's measurement report MAIO jumps, and MAIO is jumped select weights to send to described MAIO jumping choosing table to generate module;
Described MAIO jumps the choosing table and generates module, be used for jumping according to the MAIO that receives and select weights, distribute each jumping to select table element to jump in the choosing table shared separately ratio at MAIO, select table element and each jumping to select table element shared ratio separately according to each jumping, generate MAIO and jump the choosing table.
10. according to claim 8 or 9 described systems, is characterized in that, this system also comprises: the operation selected cell, be used for the status indicator according to current the second subchannel, and select to carry out different operations.
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| CN1972496A (en) * | 2005-11-10 | 2007-05-30 | 捷讯研究有限公司 | Method and apparatus for allocating communication resources to communicate data in a radio communication system |
| CN101199133A (en) * | 2005-04-19 | 2008-06-11 | 高通股份有限公司 | Frequency hopping design for IFDMA, LFDMA and OFDMA systems |
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| CN101199133A (en) * | 2005-04-19 | 2008-06-11 | 高通股份有限公司 | Frequency hopping design for IFDMA, LFDMA and OFDMA systems |
| CN1972496A (en) * | 2005-11-10 | 2007-05-30 | 捷讯研究有限公司 | Method and apparatus for allocating communication resources to communicate data in a radio communication system |
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