CN104541486A - Bit information processing method, device and system - Google Patents
Bit information processing method, device and system Download PDFInfo
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- CN104541486A CN104541486A CN201380001087.8A CN201380001087A CN104541486A CN 104541486 A CN104541486 A CN 104541486A CN 201380001087 A CN201380001087 A CN 201380001087A CN 104541486 A CN104541486 A CN 104541486A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0044—Arrangements for allocating sub-channels of the transmission path allocation of payload
- H04L5/0046—Determination of how many bits are transmitted on different sub-channels
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/0091—Signaling for the administration of the divided path
- H04L5/0094—Indication of how sub-channels of the path are allocated
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Abstract
Embodiments of the present invention discloses a bit information processing method, device and system for reducing the transmitted data volume and avoiding waste of subcarrier capacity resources during bit table interaction. In the embodiments of the present invention, the method comprises the steps of respectively determining the number of bits borne by each subcarrier cluster in a used spectrum; grouping subcarrier clusters in the used spectrum according to the subcarrier cluster index of each subcarrier cluster and the determined number of the bits borne by each subcarrier cluster to obtain a plurality of subcarrier groups, wherein the subcarrier cluster indexes of the subcarrier clusters in each subcarrier group are continuous and the subcarrier clusters bear the same number of bits; and sending bit information borne by each subcarrier group to opposite-end network equipment, thus completing interaction of bit tables. By adopting the present invention, the device and the system, the data transmission volume can be reduced, and resource waste can be avoided.
Description
The present invention relates to communication technical field, more particularly to a kind of bit information processing method, apparatus and system for a kind of bit information processing method, apparatus and system technical field.Background technology
OFDM (Orthogonal Frequency Division Multiplexing, OFDM) etc. be in multi-carrier communications systems simplified system realization, identical modulating mode is used on every sub-channels or carrier wave, but if there is indivedual poor subchannels or carrier wave, the deterioration of system error performance is will result in, therefore how key issue is turned into according to the relativity of information of each subchannel of the channel conditions reasonable distribution of each subchannel or carrier wave or carrier wave.
Adaptive technique is applied in ofdm system, it is that each subcarrier distributes different information bits within each OFDM symbol cycle according to the temporal properties of channel, and use corresponding modulation /demodulation pattern, with each subchannel of reasonable distribution or the relativity of information of carrier wave, its sub-carriers is for modulating normal signal, and the waveform with certain frequency.Specifically, the receiving terminal network equipment can receive the signal to noise ratio of signal according to the signal of change received in OFDM systems, and the bit number that the every sub-channels of signal-to-noise ratio computation or subcarrier obtained according to calculating can be carried, and the bit number that can carry all subcarriers notifies to give the transmitting terminal network equipment with bit sheet form, the bit table or the transmitting terminal network equipment that the transmitting terminal network equipment may be selected to perform the transmission of the receiving terminal network equipment are modified to the table, and interacted with the receiving terminal network equipment, last receiving-transmitting sides are modulated demodulation according to interactive bit table, therefore there is the process of bit table interaction in the ofdm system of application adaptive technique.
The bit information processing method during interaction of bit table is carried out in the prior art, mainly there is following processing mode：
The first processing mode：The receiving terminal network equipment carries out bit table according to the original form of each subcarrier in bit table with the transmitting terminal network equipment and interacted, i.e., the bit number of each subcarrier carrying is required for being transmitted in bit table, adopts
Such a transmission means is used, transmitted data amount is very big during interaction bit table.
Second of processing mode：
According to the number of subcarriers in bit table, all subcarriers are grouped according to fixed sub-carrier number, and each subcarrier in group is carried identical bit number according to regard to low principle, the receiving terminal network equipment is with the transmitting terminal network equipment by transmitting the bit number that each subcarrier group is carried, carry out the interaction of bit table, during for example according to 4 subcarriers for one group of carry out carrier wave set division, the bit number of each subcarrier actual bearer is respectively 2bit in one of subcarrier group, 2bit, 3bit and 4bit, so the bit number that each subcarrier is carried in the group is set to be 2bit according to regard to low principle, need to only be transmitted when carrying out the interaction of bit table can represent that the group includes 4 subcarriers, each subcarrier carries 2bit information.Such a interactive mode, the data volume transmitted during interactive bit table can be reduced to a certain extent, but the bit number that each subcarrier can actually be carried in subcarrier group there may be difference, according to above-mentioned interactive mode, then need the bit number for taking wherein minimum bit number as each subcarrier carrying in subcarrier group, so that originally can carry compared with multi-bit subcarrier need follow with regard to low principle, cause the waste of subcarrier capability resource.
Therefore, how the data volume transmitted during interactive bit table can be reduced, the waste of subcarrier capability resource is avoided that again, as one of current urgent problem.The content of the invention
The embodiment of the present invention provides a kind of bit information processing method, apparatus and system, to realize when carrying out the interaction of bit table, can reduce the data volume of transmission, the waste of subcarrier capability resource is avoided that again.
First aspect there is provided a kind of bit information processing method, including：
Determine respectively using the bit number that each cluster of subcarriers is carried in frequency spectrum, wherein the cluster of subcarriers includes at least one subcarrier；
The bit number that each cluster of subcarriers for being indexed and being determined according to the cluster of subcarriers of each cluster of subcarriers is carried, to being grouped using the cluster of subcarriers in frequency spectrum, several subcarrier groups are obtained, wherein the cluster of subcarriers index of each cluster of subcarriers is continuous in each subcarrier group and bit number that carry is identical；
For each subcarrier group, the bit information carried is sent to peer network device, wherein, the bit information of each subcarrier group carrying is the cluster of subcarriers for determining to include in current sub-carrier group
The information of the same number of bits of cluster of subcarriers carrying in several information and group, the peer network device is to carry out the network equipment that bit information is interacted with the current network equipment for carrying out bit information processing.
With reference in a first aspect, in the first possible implementation, to before being grouped using the cluster of subcarriers in frequency spectrum, in addition to：
The different cluster of subcarriers of carrying bit number is pre-processed in the range of being borrowed to the setting frequency included in the use frequency spectrum, obtains carrying bit number identical cluster of subcarriers.
With reference in a first aspect, or combine the first possible implementation of first aspect, second may in implementation, after being grouped using the cluster of subcarriers in frequency spectrum, in addition to：
In several obtained subcarrier groups, if between the subcarrier component group of two cluster of subcarriers comprising carrying same number of bits, in the presence of and two sub- carrier wave sets in continuous several of cluster of subcarriers index of cluster of subcarriers that include be not used and the continuous subcarriers of frequency, then by two sub- carrier wave sets and it is described several be not used and the continuous subcarrier of frequency is reclassified as a sub- carrier wave set, be used as the subcarrier group finally given.
With reference in a first aspect, in the third possible implementation, the bit number of each cluster of subcarriers carrying being determined respectively, is specifically included：
According to the signal to noise ratio S R for receiving signal, it is determined that the bit number that each cluster of subcarriers can be carried；Or each cluster of subcarriers in the same spectral range of use sent according at least two network equipments can carry the information of bit number, it is determined that the bit number of each cluster of subcarriers carrying, wherein it is determined that the bit number that can carry of each cluster of subcarriers the bit number of transmitting-receiving can be supported at least two network equipment.
Second aspect there is provided a kind of bit information processing unit, including：Determining unit, grouped element and transmitting element, wherein：
Determining unit, for the bit number for determining to borrow interior each cluster of subcarriers to carry using frequency respectively, wherein the cluster of subcarriers includes at least one subcarrier, and is sent to the grouped element by the bit number for determining the carrying of obtained each cluster of subcarriers；
Grouped element, bit number for receiving each cluster of subcarriers carrying that the determining unit is sent, and the bit number carried according to each cluster of subcarriers for being indexed and being determined according to the cluster of subcarriers of each cluster of subcarriers, to being grouped using the cluster of subcarriers in frequency spectrum, several subcarrier groups are obtained, and will packet
Obtained each subcarrier group is sent to the transmitting element, wherein the cluster of subcarriers index of each cluster of subcarriers is continuous in each subcarrier group and bit number that carry is identical；
Transmitting element, for receiving each subcarrier group that the grouped element packet is obtained, for each subcarrier group, the bit information carried is sent to opposite end Wang Network equipment, wherein, the bit information of each subcarrier group carrying is the information of the same number of bits of cluster of subcarriers carrying in the information for the cluster of subcarriers number for determining to include in current sub-carrier group and group, and the peer network device is to carry out the network equipment that bit information is interacted with currently carrying out the network equipment of bit information processing.
With reference to second aspect, in the first possible implementation, the grouped element is additionally operable to：To before being grouped using the cluster of subcarriers in frequency spectrum, being pre-processed to described using frequency by means of the different cluster of subcarriers of carrying bit number in the interior setting spectral range included, obtaining carrying bit number identical cluster of subcarriers.
With reference to second aspect, or the first possible implementation of second aspect is combined, in second of possible implementation, the grouped element is additionally operable to：
After being grouped using the cluster of subcarriers in frequency spectrum, if in thousand obtained sub- carrier wave sets, if between the subcarrier component group of two cluster of subcarriers comprising carrying same number of bits, in the presence of and two sub- carrier wave sets in continuous several of cluster of subcarriers index of cluster of subcarriers that include be not used and the continuous subcarriers of frequency, then by two sub- carrier wave sets and it is described several be not used and the continuous subcarrier of frequency is reclassified as a sub- carrier wave set, be used as the subcarrier group finally given.
With reference to second aspect, in the third possible implementation, the determining unit is used for：According to the signal to noise ratio S R for receiving signal, it is determined that the bit number that each cluster of subcarriers can be carried；Or according at least two network equipments send the same frequency of use say in the range of each cluster of subcarriers can carry the information of bit number, it is determined that the bit number of each cluster of subcarriers carrying, wherein it is determined that the bit number that can carry of each cluster of subcarriers the bit number of transmitting-receiving can be supported at least two network equipment.
The third aspect there is provided a kind of bit information processing system, including first network equipment and second network equipment, wherein,
The first network equipment is above-mentioned bit information processing unit；
The first network equipment, for each subcarrier group, the bit information carried is sent to institute
Second network equipment is stated, wherein information of the bit information for the same number of bits of cluster of subcarriers carrying in the information for the cluster of subcarriers number for indicating to include in current sub-carrier group and group.
Second network equipment, the bit information carried for each subcarrier group that first network equipment is sent is received, and the same number of bits that cluster of subcarriers is carried in the cluster of subcarriers number and group that are included in each subcarrier group is determined according to the bit information received.
The bit information processing method that first aspect present invention is provided, the bit information processing system that the bit information processing unit and the third aspect that second aspect is provided are provided, according to the cluster of subcarriers of each cluster of subcarriers comprising at least one subcarrier index and the bit number situation of each cluster of subcarriers actual bearer, cluster of subcarriers is indexed continuously and actual bearer bit number identical cluster of subcarriers is divided into one group, though the bit number of each cluster of subcarriers carrying is identical in group but is the bit number of actual bearer, the waste of sub-carrier resources is not resulted in, for being grouped obtained each subcarrier group, it is used for the same number of bits for determining that cluster of subcarriers is carried in the information and group of the cluster of subcarriers number included in the subcarrier group by interaction（Transmit cluster of subcarriers number and identical bit number）, to complete the interaction of bit table, transinformation during interactive bit table can also be reduced.Brief description of the drawings
Fig. 1 is S R-curve schematic diagrames during coaxial transmission in ofdm system；
Fig. 2 is SNR curve synoptic diagrams during Double-strand transmission in ofdm system；
Fig. 3 is bit information process flow schematic diagram provided in an embodiment of the present invention；
Fig. 4 is that subcarrier carries distribution situation schematic diagram；
Schematic diagram after Fig. 5 divides for bit carrying situation in Fig. 4 according to continuous and carrying same bits principles；
Fig. 6 is subcarrier grouping Fuzzy processing schematic diagram；
Another schematic diagram after Fig. 7 divides for bit carrying situation in Fig. 4 according to continuous and carrying same bits principles；
Subcarrier grouping schematic diagram when Fig. 8 A- Fig. 8 B include frequency paragraph is not used for frequency is general；
Fig. 9 is information exchange form schematic diagram in bit information transmission process；
Figure 10 is that bit information processing unit provided in an embodiment of the present invention constitutes schematic diagram；Figure 11 is that network controller provided in an embodiment of the present invention constitutes schematic diagram；
Figure 12 is that bit information processing system provided in an embodiment of the present invention constitutes schematic diagram.Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is a part of embodiment of the invention, rather than whole embodiments.Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made belongs to the scope of protection of the invention.
The bit carrying distribution of OFDM system sub-carriers typically shows regular frequency selective attenuation characteristic, as depicted in figs. 1 and 2, respectively in ofdm system during coaxial line and Double-strand transmission bit stream signal to noise ratio S R distribution curve schematic diagram, from Fig. 1 and Fig. 2, either coaxial channel is responded, or channel response in twisted-pair feeder, the linear characteristic of frequency selective attenuation is all obvious, SNR (Signal Noise Ratio, signal to noise ratio）Only ldB SNR shakes, the S R distribution curve schematic diagram in Fig. 2, SN only differs 5dB in the 400Mhz spectral ranges of frequency 200, therefore according to Shannon's theorems calculation formula=log2(l+SW) calculates the bit number that subcarrier is carried in the frequency range, at most also only differs 2 bit.
The bit number that bit carrying distribution meets the adjacent sub-carrier carrying of frequency selective attenuation characteristic is relatively close together, difference is not very big, can be continuous and actual bearer bit number identical subcarrier is divided into a carrier wave set by carrier frequency using this characteristic in the embodiment of the present invention, by being used for the same number of bits for determining that subcarrier is carried in the information and carrier wave set of variable number in each subcarrier group of interaction, carry out the interaction of bit table, the data volume transmitted during interactive bit table can be reduced, and the waste of carrier resource can be reduced.
Embodiment one
The embodiment of the present invention one provides a kind of bit information processing method, as shown in figure 3, including：
S 101：Determine respectively using the bit number that each cluster of subcarriers is carried in frequency spectrum.
Specifically, being that receiving terminal network equipment enters row information with the transmitting terminal network equipment in OFDM systems
During interaction, each subcarrier is distributed during different information bits in the frequency Fan being used in conjunction with, bit distribution may be carried out in units of each subcarrier, several subcarriers may also be carried out to the distribution of bit as a smallest allocation unit, subcarrier carrying identical bit number in each smallest allocation unit, and each smallest allocation unit has the subcarrier of same number, therefore it is following in the embodiment of the present invention that bit distribution is carried out in units of cluster of subcarriers, wherein cluster of subcarriers includes at least one subcarrier, and each cluster of subcarriers all has the subcarrier of same number.
Further, it is determined that during using the bit number that each cluster of subcarriers can be carried in frequency spectrum, the receiving terminal network equipment or the transmitting terminal network equipment in the embodiment of the present invention, the bit number that each subcarrier can be carried can be determined respectively according to Shannon's theorems, when including more than one subcarrier in cluster of subcarriers, it then can determine that the bit number that each subcarrier included in each cluster of subcarriers is carried respectively, and the bit number for carrying each subcarrier included in each cluster of subcarriers of determination respectively, it is used as the bit number of correspondence cluster of subcarriers carrying.
Receiving terminal Wang Network equipment or the transmitting terminal network equipment in the embodiment of the present invention, the bit carrying distribution of the cluster of subcarriers of determination shows regular frequency selective fading characteristic, cluster of subcarriers bit carrying distribution situation for example shown in Fig. 4, cluster of subcarriers index 1 29, carries 8 bits；Cluster of subcarriers indexes 30-32, carries 7 bits；Cluster of subcarriers indexes 33-36, carries 8 bits；Cluster of subcarriers indexes 37-39, carries 7 bits；Cluster of subcarriers index 40 41, carries 8 bits；Cluster of subcarriers index 42 ~ 64, carry 7 bits, wherein there is corresponding carrier frequency for each cluster of subcarriers index in bit allocation procedures, for example, when including a subcarrier in cluster of subcarriers, when including more than one subcarrier in cluster of subcarriers index one frequency of correspondence, cluster of subcarriers, cluster of subcarriers index one frequency band of correspondence.
S102:The bit number that each cluster of subcarriers for being indexed and being determined according to the cluster of subcarriers of each cluster of subcarriers is carried, to being grouped using frequency by means of interior cluster of subcarriers, obtains several subcarrier groups.
Specifically, the bit number that each cluster of subcarriers for indexing and determining according to the cluster of subcarriers of each cluster of subcarriers in the embodiment of the present invention is carried, during to being grouped using the cluster of subcarriers in frequency spectrum, cluster of subcarriers is indexed continuously and actual bearer bit number identical cluster of subcarriers is divided into one group, it is the revocable subcarrier group of dynamic to obtain several cluster of subcarriers numbers, the bit number of each subcarrier group sub-carriers cluster carrying is identical and cluster of subcarriers index is continuous, such as the bit in Fig. 4 carries situation according to the embodiment of the present invention
The packet mode of offer, the group result finally given is：Cluster of subcarriers index 1 29 is subcarrier group N, carries 8 bits；Cluster of subcarriers index 30 ~ 32 is subcarrier group N+l, carries 7 bits；Cluster of subcarriers index 33 ~ 36 is subcarrier group N+2, carries 8 bits；Cluster of subcarriers index 37 39 is subcarrier group N+/3, carries 7 bits；Cluster of subcarriers index 40 41 is subcarrier group N+4, carries 8 bits；Cluster of subcarriers index 42 ~ 64 is subcarrier group N+5, carries bit, as shown in Figure 5.
S103:The bit information that obtained each subcarrier group carrying is grouped in S102 is sent to peer network device, wherein, the bit information of each subcarrier group carrying is the information of the same number of bits of cluster of subcarriers carrying in indicating the information of the cluster of subcarriers number included in subcarrier group and organizing, and peer network device is to carry out the network equipment that bit information is interacted with the network equipment of current progress bit information processing.
Specifically, when carrying out bit information interaction between the network equipment in the embodiment of the present invention, the bit number information for being grouped obtained each subcarrier group carrying can be sent to peer network device, the information of the same number of bits of cluster of subcarriers carrying is sent to peer network device in the information and group that are used to indicate the cluster of subcarriers number included in subcarrier group that each will be carried in subcarrier group, bit information without each cluster of subcarriers is carried is interacted, and can reduce transmitted data amount.
Bit information processing method provided in an embodiment of the present invention, according to the cluster of subcarriers of each cluster of subcarriers index and the bit number situation of actual bearer, cluster of subcarriers is indexed continuously and actual bearer bit number identical cluster of subcarriers is divided into one group, though the bit number of each cluster of subcarriers carrying is identical in group but is the bit number of actual bearer, the waste of cluster of subcarriers resource is not resulted in, for being grouped obtained each subcarrier group, the bit information carried by each subcarrier group of interaction, it is used for the information for determining the same number of bits that cluster of subcarriers is carried in the information and group of the cluster of subcarriers number included in the subcarrier group, to complete the interaction of the bit information in bit table, transinformation during interactive bit table can also be reduced.
Embodiment two
The embodiment of the present invention two the bit information interaction that embodiment one is related to will be described in detail with reference to practical application.
When determining that each cluster of subcarriers can carry bit number in S101, it can be calculated according to actual network environment, for example in the case of point-to-point network transmission, then can be according to the signal to noise ratio S R for receiving signal, it is determined that the bit number that each cluster of subcarriers can be carried, such as by the receiving terminal network equipment or transmitting terminal network
Equipment is according to the signal to noise ratio S R for receiving signal, according to Shannon's theorems, determines that system uses the bit number that each cluster of subcarriers can be carried in frequency spectrum respectively.In the case of the network transmission of point-to-multipoint, each cluster of subcarriers in the same spectral range of use that then the current network equipment for carrying out bit information processing can be sent according at least two network equipments can carry the information of bit number, it is determined that the bit number of each cluster of subcarriers carrying, wherein, the bit number that each cluster of subcarriers determined can be carried can support the bit number of transmitting-receiving at least two network equipments, the relevant information of bit number can be carried by for example being sent by least two receiving devices, signal to noise ratio S or bit table etc., then the relevant information for carrying bit number that sending ending equipment is sent according at least two receiving devices, the bit number that at least two receiving devices be able to can be carried is calculated according to regard to low principle.
Further, from Fig. 1 and Fig. 2, because multipath effect etc. influences, SNR there may be ldB or so shake, so that using the bit number that may only have the bit number that individual sub-carriers cluster is carried to be different from most of cluster of subcarriers carrying in the range of the setting frequency i " included in frequency spectrum, as shown in a and b in Fig. 6, therefore the bit number that can carry the individual sub-carriers cluster in the embodiment of the present invention is pre-processed, make it identical with the bit number that most of cluster of subcarriers is carried, so as to which the individual sub-carriers cluster is divided into one group with most of cluster of subcarriers, the packet of sub-carrier cluster carries out Fuzzy processing, as shown in Figure 6, a portion subcarriers clusters can be divided into N+1 groups, b portion subcarriers clusters are divided into N+1 groups, and then the quantity of cluster of subcarriers packet can be reduced, further reduce volume of transmitted data.
The embodiment of the present invention two as embodiment one a preferred embodiment, can be after S101 determines system using the bit number that each cluster of subcarriers can be carried in frequency spectrum, the bit number carried in the S102 each cluster of subcarriers for indexing and determining according to the cluster of subcarriers of each cluster of subcarriers, before being grouped using the cluster of subcarriers in frequency spectrum, in the range of the setting frequency included in using frequency spectrum is said, the cluster of subcarriers different to carrying bit number are pre-processed, make the setting frequency borrow in the range of cluster of subcarriers carrying same number of bits, obtain carrying bit number identical cluster of subcarriers, such as bit carrying situation in Fig. 4, the individual sub-carriers cluster that the cluster of subcarriers for carrying 8 bits can be indexed into 33 ~ 36 and 40 41 is divided into the subcarrier group N+1 of 7 bits of carrying, obtain following packet situation：Cluster of subcarriers index 1 ~ 29 is subcarrier group N, carries 8 bits；Cluster of subcarriers index 30 64 is subcarrier group N+l, carries 7 bits, as shown in Figure 7.
Further, often there are some untapped wavelength coverages in OFDM systems, the present invention is implemented
The subcarrier being not used in wavelength coverage can be divided into example in subcarrier group, certain untapped frequency borrows the subcarrier in section can not also be divided into subcarrier group.
In the embodiment of the present invention, when determining that all cluster of subcarriers can carry bit number and after obtain several subcarrier groups, in several obtained subcarrier groups, if exist between the subcarrier component groups of two cluster of subcarriers comprising carrying same number of bits and two sub- carrier wave sets in continuous several of cluster of subcarriers index of cluster of subcarriers that include be not used, and the continuous subcarrier of frequency, then by two sub- carrier wave sets and this, several are not used, and the continuous subcarrier of frequency is reclassified as a sub- carrier wave set, it is used as the subcarrier group finally given, to reduce the group number of cluster of subcarriers division, reduce volume of transmitted data, as shown in Figure 8 A, cluster of subcarriers index 1 ~ 36 is sub- Zai Bo Group N, carry 8 bits；Cluster of subcarriers index 37 ~ 64 is subcarrier group N+1, carries 7 bits；Its sub-carriers group N includes the cluster of subcarriers index 23-33 that frequency paragraph is not used
When whole frequency Pass includes untapped frequency range, when the subcarrier in the wavelength coverage is not divided into subcarrier group, as shown in Figure 8 B, cluster of subcarriers index 1 ~ 22 is subcarrier group N, carries 8 bits；Cluster of subcarriers index 34 ~ 36 is subcarrier group N+1, carries 8 bits；Cluster of subcarriers index 37 ~ 64 is subcarrier group N+2, carries 7 bits.
When the bit information for being grouped obtained each subcarrier group carrying being sent into peer network device in S103, for obtaining each subcarrier group, interaction is used to indicating the bit information of the same number of bits of cluster of subcarriers carrying in the information of cluster of subcarriers number and group that are included in the subcarrier group, and the transmission of bit information is preferably carried out with the information format of " the cluster of subcarriers number information that each cluster of subcarriers carrying bit number+be used for indicates to include in the subcarrier group ".
The information for being used to indicate the cluster of subcarriers number included in the subcarrier group in the embodiment of the present invention can be cluster of subcarriers number numerical value in the cluster of subcarriers index of the cluster of subcarriers of starting, the cluster of subcarriers index of the cluster of subcarriers terminated or group；
Specifically, it see shown in Fig. 9, Bi values 1, Bi values 2 represent the same number of bits of N group subcarrier groups and the carrying of N+1 group subcarrier group sub-carriers cluster respectively, the cluster of subcarriers index of subcarrier number of clusters, the cluster of subcarriers index for terminating cluster of subcarriers and starting cluster of subcarriers, then be respectively used to represent the number of correspondence subcarrier group sub-carriers cluster.
In the embodiment of the present invention, when cluster of subcarriers index of the cluster of subcarriers number information for determining to include in subcarrier group for starting cluster of subcarriers, send the information of the cluster of subcarriers number for indicating to include in the subcarrier group, indexed by sending the cluster of subcarriers of the starting cluster of subcarriers included in the subcarrier group to peer network device, then peer network device indexes to determine the cluster of subcarriers number included in the subcarrier group by the cluster of subcarriers of the starting cluster of subcarriers included in the subcarrier group adjacent with the subcarrier group.
When being indexed when the cluster of subcarriers number information for determining to include in subcarrier group to terminate the cluster of subcarriers of cluster of subcarriers, send the information of the cluster of subcarriers number for determining to include in the subcarrier group, indexed by sending the cluster of subcarriers of the termination cluster of subcarriers included in the subcarrier group to peer network device, then peer network device indexes to determine the cluster of subcarriers number included in the subcarrier group by the cluster of subcarriers of the termination cluster of subcarriers included in adjacent sub-carrier group.
Need further exist for explanation be, when including untapped wavelength coverage in whole frequency spectrum in the embodiment of the present invention, and when the subcarrier in unused frequency Pass is divided into subcarrier group, when carrying out the bit information interaction in bit table, can be by the receiving terminal network equipment and the transmitting terminal network equipment, consulted in advance by other message or the interactive untapped spectrum information, more accurately to determine the subcarrier number of clusters included in bit table.
In bit information interactive mode provided in an embodiment of the present invention, situation is carried according to the bit of cluster of subcarriers, cluster of subcarriers is indexed continuous and carrying bit number identical cluster of subcarriers is divided into one group, each subcarrier group sub-carriers cluster number is not fixed, but the bit number of each cluster of subcarriers carrying is identical and is the bit number of cluster of subcarriers actual bearer, according to obtained group result, carry out the interaction of bit information in bit table, volume of transmitted data can be reduced, and the wasting of resources can be avoided.
Embodiment three
The bit information processing method being related to based on above-described embodiment, the embodiment of the present invention three provides a kind of bit information processing unit, and as shown in Figure 10, the bit information processing unit includes：Determining unit 10, grouped element 11 and transmitting element 12, wherein：
Determining unit 10, for determining that wherein cluster of subcarriers includes at least one subcarrier, and the bit number for determining the carrying of obtained each cluster of subcarriers is sent into grouped element 11 using the bit number that each cluster of subcarriers is carried in frequency spectrum respectively;
Grouped element 11, the bit number of each cluster of subcarriers carrying for receiving the transmission of determining unit 10,
And the bit number that each cluster of subcarriers for being indexed and being determined according to the cluster of subcarriers of each cluster of subcarriers is carried, to being grouped using the cluster of subcarriers in frequency spectrum, obtain several subcarrier groups, and the transmitting element 12 is sent to by obtained each subcarrier group is grouped, wherein the cluster of subcarriers index of each cluster of subcarriers is continuous in each subcarrier group and bit number that carry is identical；
Transmitting element 12, obtained each subcarrier group is grouped for receiving grouped element 11, for each subcarrier group, the bit information carried is sent to peer network device, wherein, the bit information of each subcarrier group carrying is the information of the same number of bits of cluster of subcarriers carrying in the information for the cluster of subcarriers number for indicating to include in current sub-carrier group and group, and peer network device is to carry out the network equipment that bit information is interacted with currently carrying out the network equipment of bit information processing.
Wherein, grouped element 11 is additionally operable to：To before being grouped using the cluster of subcarriers in frequency spectrum, to pre-processing using the different cluster of subcarriers of carrying bit number in the range of the setting frequency Pass included in frequency Henan, obtaining carrying bit number identical cluster of subcarriers.
Specifically, transmitting element 12, the cluster of subcarriers index of the starting cluster of subcarriers included for sending in current sub-carrier group, indexes to determine the cluster of subcarriers number included in current sub-carrier group by the cluster of subcarriers of the starting cluster of subcarriers included in the subcarrier group adjacent with current sub-carrier group；Or
The cluster of subcarriers index of the termination cluster of subcarriers included in current sub-carrier group is sent, indexes to determine the cluster of subcarriers number included in current sub-carrier group by the cluster of subcarriers of the termination cluster of subcarriers included in the subcarrier group adjacent with current sub-carrier group.
Wherein, grouped element 11 is additionally operable to：After being grouped using the cluster of subcarriers in frequency spectrum, in several obtained subcarrier groups, if between the subcarrier component group of two cluster of subcarriers comprising carrying same number of bits, if in the presence of and two sub- carrier wave sets in the cluster of subcarriers of cluster of subcarriers that includes index continuous thousand and be not used and the continuous subcarriers of frequency, then by two sub- carrier wave sets and it is described several be not used and the continuous subcarrier of frequency is reclassified as a sub- carrier wave set, be used as the subcarrier group finally given.
Specifically, determining unit 10, for according to the signal to noise ratio S R for receiving signal, it is determined that the bit number that each cluster of subcarriers can be carried；Or
The each cluster of subcarriers in the same spectral range of use sent according at least two network equipments can be held
Carry the information of bit number, it is determined that the bit number of each cluster of subcarriers carrying, wherein it is determined that the bit number that can carry of each cluster of subcarriers the bit number of transmitting-receiving can be supported at least two network equipments.
Pass through bit information processing unit provided in an embodiment of the present invention, according to the cluster of subcarriers of each cluster of subcarriers index and the bit number situation of actual bearer, cluster of subcarriers is indexed continuously and actual bearer bit number identical cluster of subcarriers is divided into one group, though the bit number of each cluster of subcarriers carrying is identical in group but is the bit number of actual bearer, the waste of cluster of subcarriers resource is not resulted in, for being grouped obtained each subcarrier group, the bit information carried by each subcarrier group of interaction, it is used for the information for determining the same number of bits that cluster of subcarriers is carried in the information and group of the cluster of subcarriers number included in the subcarrier group, to complete the interaction of the bit information in bit table, transinformation during interactive bit table can also be reduced.
Above-mentioned bit information processing unit provided in an embodiment of the present invention, it can be independent part, it can also be integrated with the network equipment, such as above-mentioned bit information processing unit provided in an embodiment of the present invention can be the receiving terminal network equipment or the transmitting terminal network equipment of ofdm system in existing communication network or the new part being integrated in receiving terminal Wang Network equipment or the transmitting terminal network equipment.
It should be noted that the function of modules/unit of bit information processing unit in the embodiment of the present invention realize and interactive mode can with further reference to related method embodiment description.
Example IV
Based on bit information processing method provided in an embodiment of the present invention and bit information processing unit, the embodiment of the present invention four provides a kind of network controller, as shown in figure 11, and the network controller includes processor 20 and I/O interfaces 21, wherein：
Processor 20, for determining respectively using the bit number that each cluster of subcarriers is carried in frequency spectrum, wherein cluster of subcarriers includes at least one subcarrier, and the bit number that each cluster of subcarriers for being indexed and being determined according to the cluster of subcarriers of each cluster of subcarriers is carried, to being grouped using the cluster of subcarriers in frequency spectrum, if obtaining thousand sub- carrier wave sets, and for each subcarrier group, the bit number information carried is exported to I/O interfaces 21, wherein bit information is the information of the cluster of subcarriers number included in instruction current sub-carrier group, and the information of the same number of bits of the interior cluster of subcarriers carrying of group；
I/O interfaces 21, for for each subcarrier group, the bit information carried to be sent to peer network device, wherein, peer network device is to be compared with the current network equipment for carrying out bit information processing
The network equipment of special information exchange.
Network controller provided in an embodiment of the present invention, according to the cluster of subcarriers of each cluster of subcarriers index and the bit number situation of actual bearer, cluster of subcarriers is indexed continuously and actual bearer bit number identical cluster of subcarriers is divided into one group, though the bit number of each cluster of subcarriers carrying is identical in group but is the bit number of actual bearer, the waste of cluster of subcarriers resource is not resulted in, for being grouped obtained each subcarrier group, the bit information carried by each subcarrier group of interaction, it is used for the information for determining the same number of bits that cluster of subcarriers is carried in the information and group of the cluster of subcarriers number included in the subcarrier group, to complete the interaction of the bit information in bit table, transinformation during interactive bit table can also be reduced.
Embodiment five
The bit information processing method and processing device being related to based on above-described embodiment, the embodiment of the present invention five provides a kind of bit information processing system, as shown in figure 12, and the bit information processing system includes the network equipment 31 of first network equipment 30 and second, wherein
First network equipment 30 is the bit information processing unit that is related in the embodiment of the present invention three, and first network equipment 30 has bit information processing unit identical structure and function in embodiment three, and its concrete structure will not be repeated here with function.
First network equipment 30, for each subcarrier group, the bit information carried is sent to the information of second network equipment, the wherein same number of bits that bit information carries for cluster of subcarriers in the information for the cluster of subcarriers number for indicating to include in current sub-carrier group and group.
Second network equipment 31, the bit information carried for each subcarrier group that first network equipment 30 is sent is received, and the same number of bits that cluster of subcarriers is carried in the cluster of subcarriers number and group that are included in each subcarrier group is determined according to the bit information received.
Bit information processing system provided in an embodiment of the present invention, first network equipment is according to the cluster of subcarriers of each cluster of subcarriers index and the bit number situation of actual bearer, cluster of subcarriers is indexed continuously and actual bearer bit number identical cluster of subcarriers is divided into one group, though the bit number of each cluster of subcarriers carrying is identical in group but is the bit number of actual bearer, the waste of cluster of subcarriers resource is not resulted in, for being grouped obtained each subcarrier group, the bit information carried by each subcarrier group of interaction, it is used for the same number of bits for determining that cluster of subcarriers is carried in the information and group of the cluster of subcarriers number included in the subcarrier group
Information, to complete the interaction of the bit information in bit table, transinformation during interactive bit table can also be reduced.
It should be understood by those skilled in the art that, embodiments of the invention can be provided as method, system or computer program product.Therefore, the form of the embodiment in terms of the present invention can use complete hardware embodiment, complete software embodiment or combine software and hardware.Moreover, the present invention can be used (includes but is not limited to magnetic disk storage, CD-ROM, optical memory etc. in one or more computer-usable storage mediums for wherein including computer usable program code）The form of the computer program product of upper implementation.
The present invention is with reference to method according to embodiments of the present invention, equipment（System）And the flow chart and/or block diagram of computer program product are described.It should be understood that can by the flow in each flow and/or square frame and flow chart and/or block diagram in computer program instructions implementation process figure and/or block diagram and/or square frame combination.These computer program instructions can be provided to the processor of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing devices to produce a machine so that produce the device for being used for realizing the function of specifying in one flow of flow chart or multiple flows and/or one square frame of block diagram or multiple square frames by the instruction of the computing device of computer or other programmable data processing devices.
These computer program instructions may be alternatively stored in the computer-readable memory that computer or other programmable data processing devices can be guided to work in a specific way, so that the instruction being stored in the computer-readable memory, which is produced, includes the manufacture of command device, the command device realizes the function of being specified in one flow of flow chart or multiple flows and/or one square frame of block diagram or multiple square frames.
These computer program instructions can be also loaded into computer or other programmable data processing devices, so that series of operation steps is performed on computer or other programmable devices to produce computer implemented processing, so that the instruction performed on computer or other programmable devices provides the step of being used to realize the function of specifying in one flow of flow chart or multiple flows and/or one square frame of block diagram or multiple square frames.
Although preferred embodiments of the present invention have been described, but those skilled in the art once know basic creative concept, then other change and modification can be made to these embodiments.So, appended claims are intended to be construed to include preferred embodiment and fall into having altered and changing for the scope of the invention.
Obviously, those skilled in the art can carry out the spirit and scope of various changes and modification without departing from the embodiment of the present invention to the embodiment of the present invention.So, if these modifications and variations of the embodiment of the present invention belong within the scope of the claims in the present invention and its equivalent technologies, then the present invention is also intended to comprising including these changes and modification.
Claims (9)
- Claim1st, a kind of bit information processing method, it is characterised in that including：Determine respectively using the bit number that each cluster of subcarriers is carried in frequency spectrum, wherein the cluster of subcarriers includes at least one subcarrier；The bit number that each cluster of subcarriers for being indexed and being determined according to the cluster of subcarriers of each cluster of subcarriers is carried, to being grouped using the cluster of subcarriers in frequency spectrum, several subcarrier groups are obtained, wherein the cluster of subcarriers index of each cluster of subcarriers is continuous in each subcarrier group and bit number that carry is identical；For each subcarrier group, the bit information carried is sent to peer network device, wherein, the bit information of each subcarrier group carrying is the information of the same number of bits of cluster of subcarriers carrying in the information for the cluster of subcarriers number for indicating to include in current sub-carrier group and group, and the peer network device is to carry out the network equipment that bit information is interacted with currently carrying out bit information processing Wang Network equipment.2nd, the method as described in claim 1, it is characterised in that to before being grouped using the cluster of subcarriers in frequency spectrum, in addition to：The cluster of subcarriers different to carrying bit number in the setting spectral range that is included in the use frequency spectrum are pre-processed, and obtain carrying bit number identical cluster of subcarriers.3rd, method as claimed in claim 1 or 2, it is characterised in that after being grouped using the cluster of subcarriers in frequency spectrum, in addition to：In several obtained subcarrier groups, if between the subcarrier component group of two cluster of subcarriers comprising carrying same number of bits, if in the presence of and two sub- carrier wave sets in the cluster of subcarriers of cluster of subcarriers that includes index continuous thousand and be not used and the continuous subcarriers of frequency, then by two sub- carrier wave sets and it is described several be not used and the continuous subcarrier of frequency is reclassified as a sub- carrier wave set, be used as the subcarrier group finally given.4th, the method as described in claim 1, it is characterised in that determine the bit number of each cluster of subcarriers carrying respectively, specifically include：According to the signal to noise ratio S R for receiving signal, it is determined that the bit number that each cluster of subcarriers can be carried；Or each cluster of subcarriers in the same spectral range of use sent according at least two network equipments can be held Carry the information of bit number, it is determined that the bit number of each cluster of subcarriers carrying, wherein it is determined that the bit number that can carry of each cluster of subcarriers the bit number of transmitting-receiving can be supported at least two network equipment.5th, a kind of bit information processing unit, it is characterised in that including：Determining unit, grouped element and transmitting element, wherein：Determining unit, for the bit number for determining to borrow interior each cluster of subcarriers to carry using frequency respectively, wherein the cluster of subcarriers includes at least one subcarrier, and is sent to the grouped element by the bit number for determining the carrying of obtained each cluster of subcarriers；Grouped element, bit number for receiving each cluster of subcarriers carrying that the determining unit is sent, and the bit number carried according to each cluster of subcarriers for being indexed and being determined according to the cluster of subcarriers of each cluster of subcarriers, to being grouped using the cluster of subcarriers in frequency spectrum, obtain several subcarrier groups, and the transmitting element is sent to by obtained each subcarrier group is grouped, wherein the cluster of subcarriers index of each cluster of subcarriers is continuous in each subcarrier group and bit number that carry is identical；Transmitting element, for receiving each subcarrier group that the grouped element packet is obtained, for each subcarrier group, the bit information carried is sent to opposite end Wang Network equipment, wherein, the bit information of each subcarrier group carrying is the information of the same number of bits of cluster of subcarriers carrying in indicating the information of the cluster of subcarriers number included in current sub-carrier group and organizing, and the peer network device is to carry out the network equipment that bit information is interacted with the network equipment of current progress bit information processing.6th, bit information processing unit as claimed in claim 5, it is characterised in that the grouped element is additionally operable to：To before being grouped using the cluster of subcarriers in frequency spectrum, the cluster of subcarriers different to carrying bit number in the setting spectral range that is included in the use frequency spectrum are pre-processed, and obtain carrying bit number identical cluster of subcarriers.7th, the bit information processing unit as described in claim 5 or 6, it is characterised in that the grouped element is additionally operable to：After being grouped using the cluster of subcarriers in frequency spectrum, if in thousand obtained sub- carrier wave sets, if between the subcarrier component groups of two cluster of subcarriers comprising carrying same number of bits, exist and two sub- carrier wave sets in continuous several of cluster of subcarriers index of cluster of subcarriers that include be not used and frequencies connect Continuous subcarrier, then by two sub- carrier wave sets and it is described several be not used and the continuous subcarrier of frequency is reclassified as a sub- carrier wave set, be used as the subcarrier group finally given.8th, bit information processing unit as claimed in claim 5, it is characterised in that the determining unit, is used for：According to the signal to noise ratio S R for receiving signal, it is determined that the bit number that each cluster of subcarriers can be carried；Or each cluster of subcarriers in the same spectral range of use sent according at least two network equipments can carry the information of bit number, it is determined that the bit number of each cluster of subcarriers carrying, wherein it is determined that the bit number that can carry of each cluster of subcarriers the bit number of transmitting-receiving can be supported at least two network equipment.9th, a kind of bit information processing system, it is characterised in that including first network equipment and second network equipment, wherein,The first network equipment is the bit information processing unit described in claim any one of 5-8；The first network equipment, for each subcarrier group, the bit information carried is sent to second network equipment, wherein information of the bit information for the same number of bits of cluster of subcarriers carrying in the information for the cluster of subcarriers number for indicating to include in current sub-carrier group and group.Second network equipment, the bit information carried for each subcarrier group that first network equipment is sent is received, and the same number of bits that cluster of subcarriers is carried in the cluster of subcarriers number and group that are included in each subcarrier group is determined according to the bit information received.
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| PCT/CN2013/080841 WO2015017966A1 (en) | 2013-08-05 | 2013-08-05 | Bit information processing method, device and system |
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| US20060008014A1 (en) * | 2004-07-07 | 2006-01-12 | Satoshi Tamaki | Method and adaptive modulation in multi-carrier communication |
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| CN101567833A (en) * | 2008-04-25 | 2009-10-28 | 江军 | Multi-user OFDM system subcarrier distribution scheme based on business model |
| CN101478517A (en) * | 2008-09-22 | 2009-07-08 | 北京邮电大学 | OFDM system dynamic bit loading method based on ordering |
| CN101534277A (en) * | 2009-01-07 | 2009-09-16 | 北京邮电大学 | Fast bit allocation method suitable for multicarrier system |
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| CN1518821A (en) * | 2001-04-27 | 2004-08-04 | Method for reducing signaling overhead in multicarrier systme with dynamic bit allocation and corresponding transmitter/receiver device | |
| US20060008014A1 (en) * | 2004-07-07 | 2006-01-12 | Satoshi Tamaki | Method and adaptive modulation in multi-carrier communication |
| CN101682490A (en) * | 2007-04-05 | 2010-03-24 | 夏普株式会社 | Communication method decision device, transmission device, reception device, OFDM adaptive modulation system, and communication method decision method |
| CN101471761A (en) * | 2007-12-18 | 2009-07-01 | 英飞凌科技股份有限公司 | Multi-carrier communication via sub-carrier groups |
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