CN101111048B - Method for dynamic regulation of wireless resource block configuration based on offset - Google Patents
Method for dynamic regulation of wireless resource block configuration based on offset Download PDFInfo
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- CN101111048B CN101111048B CN2007101380968A CN200710138096A CN101111048B CN 101111048 B CN101111048 B CN 101111048B CN 2007101380968 A CN2007101380968 A CN 2007101380968A CN 200710138096 A CN200710138096 A CN 200710138096A CN 101111048 B CN101111048 B CN 101111048B
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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
- H04L5/0001—Arrangements for dividing the transmission path
- H04L5/0003—Two-dimensional division
- H04L5/0005—Time-frequency
- H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT
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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
- H04L5/0037—Inter-user or inter-terminal allocation
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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
- H04L5/0078—Timing of allocation
- H04L5/0082—Timing of allocation at predetermined intervals
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J11/00—Orthogonal multiplex systems, e.g. using WALSH codes
- H04J11/0023—Interference mitigation or co-ordination
- H04J11/0026—Interference mitigation or co-ordination of multi-user interference
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
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Abstract
The present invention provides a dynamic adjustment method of a radio resource block configuration based on a offset, which comprises the following procedures: S102, an offset aggregation is determined according to the radio resource configuration attribute in the radio resource block; S104, one offset is periodically and non-periodically selected from the offset aggregation and the part and the whole radio resource configuration in the radio resource block are changed according to the chosen offset; S106, the transmission data is dispatched according to the changed radio resource block. The change of the sub-carrier configuration in the RB through the technical proposal enables the channel capacity of the sub-channel based on the RB band width in the OFDM system to one or a plurality of receivers to be optimized statistically, thereby improving the transmitted throughput, and in particular to be suitable for a forth mobile communication system.
Description
Technical field
The present invention relates to the access technology in the communication system, relate in particular to a kind of method for dynamic regulation of wireless resource block configuration based on side-play amount.
Background technology
Along with the evolution of cellular system, OFDMA (Orthogonal Frequency DivisionMultiple Access, OFDM inserts) system becomes the mainstream technology of following wide-band mobile communication gradually.OFDM (Orthogonal Frequency Division Multiplexing; OFDM) core concept of system is; Utilize IFFT (invert fast fourier transformation) with data stream modulates on a plurality of subcarriers; Frequency response to channel is cut apart, and makes it to become parallel, independent approximate memoryless a plurality of subchannels.Therefore; The basic Radio Resource of ofdm system is frequency and time (or time interval); If matching coding technology and multi-antenna technology; Ofdm system can also obtain extra code source or space resources, utilizes the OFDM orthogonal time frequency resources to obtain the multiple access transmittability, and this system is the OFDMA system.
Reducing expense is the important means that wireless communication system obtains higher spectrum efficiency, and down, system bandwidth is big more at interval for same subcarrier frequency; Sub-carrier number is many more, for the expense of multiple access transmission assigned subcarrier is just big more, simultaneously; On the one hand, once transmit the big data of trying one's best, can reduce overhead; On the other hand, the data length of most of business is not what fix, so the design resource piece makes it to carry the business of smaller length; Simultaneously a plurality of Resource Block combinations can be transmitted the business than length, be very important.For example RB of definition comprises 12 number of sub-carrier and the 1ms time interval in LTE (LongTerm Evolution, Long Term Evolution) system, and the sub-carrier configuration among the RB is changeless.
In order to improve the availability of frequency spectrum; Wireless communication system can adopt Adaptive Modulation and Coding scheme (MCS) according to channel condition, and MCS normally classifies and be limited, and a plurality of RB (Resource Block can be adopted in base station and terminal; Resource Block) transmits a data block (TB; Transport block), in order to reduce notification overhead, different RB adopts identical MCS in the TB.When the sub-carrier configuration among the RB of system immobilizes; Because in most cases its channel has frequency selection and time selectivity; And the resource that TB takies is the local channel resource, and the MCS that then distributes for TB is not necessarily optimum, thereby causes the availability of frequency spectrum to descend.
Summary of the invention
Consider the changeless RB sub-carrier configuration of the employing that exists in the prior art; Thereby can not make the total bigger problem of maintenance of OFDMA channel capacity and propose the present invention; For this reason; The present invention aims to provide a kind of dynamic adjusting method of wireless resource block configuration of the sub-carrier offset amount based on OFDM (OFDM), so that adopt the wireless communication system entire throughput or the availability of frequency spectrum of OFDM (OFDM) technology bigger.
According to the present invention, a kind of method for dynamic regulation of wireless resource block configuration based on side-play amount is provided.
This method comprises following processing: step S102, confirms the side-play amount set according to the radio-resource-configuration attribute in the wireless resource block; Step S104 selects a side-play amount to cycle or aperiodic, and changes the radio-resource-configuration in the part or all of wireless resource block according to the side-play amount of selecting from the side-play amount set; Step S106 is according to the Radio Resource block dispatching data to be transmitted after changing.
In step S102, the radio-resource-configuration attribute is the radio-resource-configuration mode in the wireless resource block, comprising: mode one, and all wireless resource block configurations of ofdm system are identical; Mode two, the wireless resource block configuration of ofdm system is different.
In step S102; The processing of confirming the side-play amount set is specially: the mode of the radio-resource-configuration in wireless resource block is mode a period of time; Part or all of side-play amount among selection 0～A-1 is as the element in the side-play amount set, and wherein, A is the sub-carrier number in the wireless resource block; When the mode of the radio-resource-configuration in the wireless resource block was mode two, the part or all of side-play amount among selection 0～B-1 was as the element in the side-play amount set, and wherein, B is the total number of sub-carriers in the ofdm system.
In step S104, cycle or aperiodic, ground selected the processing of a side-play amount to be specially from the side-play amount set: transmit leg voluntarily or according to recipient's feedback information period or aperiodic ground from the side-play amount set, select a side-play amount.
Wherein, above-mentioned transmit leg selects the processing of a side-play amount to be specially according to recipient's feedback information: the recipient adds up under the part or all of side-play amount, the channel quality test value of wireless resource block; Under recipient's calculating section or the whole side-play amount, based on the quality index of a channel information of wireless resource block; Receive direction transmit leg feedback fraction or whole offset information; Transmit leg is selected a side-play amount according to predetermined side-play amount selection principle.
Above-mentioned offset information be following any: side-play amount; Side-play amount and corresponding quality index of a channel information; Side-play amount set and corresponding quality index of a channel ensemble of communication; Side-play amount and corresponding channel quality test value; Side-play amount set and corresponding channel quality test value set.
Above-mentioned transmit leg selects the processing of a side-play amount to be specially voluntarily: the data that transmit leg is added up under the current side-play amount are sent quality; Transmit leg sends the variation adjustment side-play amount of quality according to data; Transmit leg is attempted the adjustment side-play amount, and on the corresponding wireless resource block of adjusted side-play amount, sends data, attempts adjustment up to side-play amount and finishes; After attempting the adjustment end, transmit leg selects to send a side-play amount the best in quality from try result.
In step S104, the processing that changes the radio-resource-configuration in the part or all of wireless resource block is specially: transmit leg according to the predetermined migration mapping mode, changes the subcarrier composition that comprises in the part or all of wireless resource block according to the side-play amount of selecting.The predetermined migration mapping mode is: under specific side-play amount, and the logical number of continuous sub-carriers and the physically mapping relations of the physics numbering of discrete subcarrier in logic; Wherein, define the numbering of wireless resource block and the logical number of corresponding subcarrier in advance.In addition, when having static wireless resource block, the logical number of the subcarrier in the static wireless resource block is identical under different side-play amounts with the mapping relations of physics numbering.
In step S106, be specially according to the processing of the Radio Resource block dispatching data to be transmitted after changing: transmit leg sends data to be transmitted according to the scheduling strategy scheduling to one or more recipients on the wireless resource block after the change.
In addition, in step S102, wireless resource block comprises: running time-frequency resource, any in running time-frequency resource and code source or the space resources or two s' combination.
Through technique scheme of the present invention; Can be through changing the sub-carrier configuration among the RB; Make in the ofdm system bandwidth and to optimize for one or more recipients on the channel capacity statistical significance based on the subchannel of the TB bandwidth of RB; And then improved the throughput of transmission, be specially adapted in the 4th third-generation mobile communication system.
Other features and advantages of the present invention will be set forth in specification subsequently, and, partly from specification, become obvious, perhaps understand through embodiment of the present invention.The object of the invention can be realized through the structure that in the specification of being write, claims and accompanying drawing, is particularly pointed out and obtained with other advantages.
Description of drawings
Accompanying drawing is used to provide further understanding of the present invention, and constitutes the part of specification, is used to explain the present invention with embodiments of the invention, is not construed as limiting the invention.In the accompanying drawings:
Fig. 1 is the flow chart based on the method for dynamic regulation of wireless resource block configuration of side-play amount according to the embodiment of the invention;
Fig. 2 is the flow chart of the instance 1 of method shown in Figure 1; And
Fig. 3 is the flow chart of the instance 2 of method shown in Figure 1.
Embodiment
Below in conjunction with accompanying drawing the preferred embodiments of the present invention are described, should be appreciated that preferred embodiment described herein only is used for explanation and explains the present invention, and be not used in qualification the present invention.
Relate to wireless resource block (RB) among the present invention, below will at first be described in detail RB.
(1) RB can be divided into two types by configuration
Radio-resource-configuration mode in the wireless resource block comprises following two kinds: mode one, and all wireless resource block configurations of ofdm system are identical; Mode two, the wireless resource block configuration of ofdm system is different.Correspondingly; RB can be divided into two types by configuration: the wireless resource block configuration of all ofdm systems in the first kind wireless resource block is identical; Promptly adopt above-mentioned mode one, that is to say, the wireless resource block of ofdm system running time-frequency resource at least has only a kind of size configure; Sub-carrier number among the different RB is the same, and the OFDM symbolic number that comprises also is the same; The wireless resource block configuration of the ofdm system in second type of wireless resource block is different, promptly adopts above-mentioned mode two.
(2) RB distributes by subcarrier and can be divided into two types
Centralized RB:, claim that then this RB is centralized RB if the sub-carrier frequencies among the RB is continuous;
Distributed RB: the RB except that centralized RB.
(3) RB is divided into two types according to pattern
Dynamic RB: the subcarrier composition that dynamically comprises among the RB is variable;
Static RB: the subcarrier composition that comprises among the static RB is immutable.
(4) RB is according to attributive classification
Logic (or virtual) RB: the subcarrier that comprises in this RB is virtual, and the logical sub carrier index is continuous, and the logical sub carrier wave is always constant in particular number RB;
Physics RB: what comprise in this RB is physical sub-carrier, and the physical sub-carrier numbering is not necessarily continuous among the RB of particular number, and physical sub-carrier can be always constant in particular number RB, also can change.
Wherein, there are specific mapping relations in logical sub carrier index and physical sub-carrier among logic (or virtual) RB, and under the different side-play amounts, these mapping relations can be the same or different.
In addition, the transmit leg of hereinafter mentioning can be the base station (Base Station, BS) or access point (Access Point, AP), the recipient can be the terminal (User Equipment, UE).
Based on above content, as shown in Figure 1, comprise following processing according to the embodiment of the invention based on the RB of side-play amount configuration dynamic adjusting method:
Step S102 confirms the side-play amount set according to the radio-resource-configuration attribute among the RB; Step S104 selects a side-play amount to cycle or aperiodic, and changes the radio-resource-configuration among the part or all of RB according to the side-play amount of selecting from the side-play amount set; Step S106 is according to the RB scheduling data to be transmitted after changing.
Below will specifically describe each details in the above-mentioned processing.
At first, the RB of above-mentioned ofdm system refers to time-frequency (being the time or the time interval and frequency or subcarrier) resource, or one or two the combination in running time-frequency resource and code source, the space resources, and the frequency resource of OFDM refers to the subcarrier set in the ofdm system.
In step S102, the radio-resource-configuration attribute is the radio-resource-configuration mode among the RB, comprising: mode one, and all RB configurations of ofdm system are identical; Mode two, the RB configuration of ofdm system is different.
Correspondingly; In step S102, confirm that the processing of side-play amount set is specially: the mode of the radio-resource-configuration in RB is mode a period of time, and the part or all of side-play amount among selection 0～A-1 is as the element in the side-play amount set; Wherein, A is the sub-carrier number among the RB; When the mode of the radio-resource-configuration among the RB was mode two, the part or all of side-play amount among selection 0～B-1 was as the element in the side-play amount set, and wherein, B is the total number of sub-carriers in the ofdm system.
In step S104, cycle or aperiodic, ground selected the processing of a side-play amount to be specially from the side-play amount set: transmit leg voluntarily or according to recipient's feedback information period or aperiodic ground from the side-play amount set, select a side-play amount.The method that side-play amount is selected can according to different principles (as, Block Error Rate is minimum, throughput maximum etc.) confirm that the present invention is unqualified to this.
Wherein, above-mentioned transmit leg selects the processing of a side-play amount to be specially according to recipient's feedback information: the recipient adds up under the part or all of side-play amount, the channel quality test value of RB; Under recipient's calculating section or the whole side-play amount, based on the quality index of a channel information of RB; Receive direction transmit leg feedback fraction or whole offset information; Transmit leg is selected a side-play amount (the following instance 1 that will combine specifically describes) according to predetermined side-play amount selection principle.
Above-mentioned transmit leg selects the processing of a side-play amount to be specially voluntarily: the data that transmit leg is added up under the current side-play amount are sent quality; Transmit leg sends the variation adjustment side-play amount of quality according to data; Transmit leg is attempted the adjustment side-play amount, and on the corresponding RB of adjusted side-play amount, sends data, attempts adjustment up to side-play amount and finishes; After attempting the adjustment end, transmit leg selects to send a side-play amount (the following instance 2 that will combine specifically describes) the best in quality from try result.
In step S104, the processing that changes the radio-resource-configuration among the part or all of RB is specially: transmit leg according to the predetermined migration mapping mode, changes the subcarrier composition that comprises among the part or all of RB according to the side-play amount of selecting.
As stated, the RB of ofdm system can be divided into two types, and one type is called dynamic RB, and the subcarrier composition that dynamically comprises among the RB is variable, another kind ofly is called static RB, and the subcarrier composition that comprises among the static RB is immutable.RB in the ofdm system can only have static RB, also dynamic RB can only be arranged, and can also static RB also be arranged existing dynamic RB.In addition, the ofdm system subcarrier claims that by the ascending numbering of frequency this is numbered the physics numbering; Subcarrier number among the RB is the subcarrier logical number; For centralized RB, side-play amount is that 0 o'clock logical number is identical with the physics numbering, for distributed RB; Side-play amount is 0 o'clock, and there are the mapping relations of confirming in logical number and physics numbering.
Based on this; Above-mentioned predetermined migration mapping mode is: under specific side-play amount, and the logical number of continuous sub-carriers (logical number of the subcarrier that RB is interior is continuous) and the physically mapping relations of the physics numbering (the physics numbering is corresponding with the actual frequency of subcarrier) of discrete subcarrier in logic.
Wherein, need define the numbering of RB and the logical number of corresponding subcarrier in advance.A kind of mode of definition is to number the logical number of the subcarrier among the big RB always greater than the logical number of the little RB subcarrier of numbering, and for example: RB0 comprises LSC0～11, and VRB1 comprises LSC12～23 ...In addition, when having static RB, the logical number of the subcarrier among the static RB is identical under different side-play amounts with the mapping relations of physics numbering.
In step S106, the processing of dispatching data to be transmitted according to the RB after changing is specially: transmit leg is treated the data to one or more recipients' transmission according to the scheduling strategy scheduling on the RB after the change.
Below will further describe embodiments of the invention through instance.
Instance 1: transmit leg is selected a side-play amount according to recipient's feedback information, and wherein, transmit leg is BS, and the recipient is UE
As shown in Figure 2, the present invention includes following processing under this instance:
Step S202 confirms the side-play amount set according to the radio-resource-configuration attribute in the wireless resource block;
Suppose that it is 9MHz that ofdm system carries the data frequency resource bandwidth, subcarrier spacing is 15KHz, is 600 except the useful sub-carrier number of direct current (being the 0Hz subcarrier) then, set from-4.5MHz is to 4.5MHz, subcarrier (sub-carrier) is numbered SC0～SC599; (RB0～RB49), each RB comprises 12 number of sub-carrier to 50 Resource Block, and the side-play amount set is for { 0,1,2; 3,4,5,6,7; 8,9,10,11}, RB are the centralised allocation pattern; Be that subcarrier among each RB is continuous, like corresponding and 0 side-play amount, RB0 comprises subcarrier SC0, SC1 ..., SC11; RB1 comprises SC12, SC13 ..., SC23, and the like, the subcarrier number that different RB comprises is different.RB can also be the distributed allocation pattern; That is, it is (like the mapping relations of LSC0～LSC599) and physically discrete subcarrier number, for example corresponding with the m+12 * n logical sub carrier wave and the m * 50+n physical sub-carrier to set up the numbering of continuous sub-carriers in logic; M=0～11 wherein, n=0～49.Under the distributed allocation pattern, corresponding to 0 side-play amount, RB0 comprises subcarrier LSC0, LSC1 ..., LSC11, RB1 comprise LSC12, LSC13 ..., LSC23, and the like.It is respectively that 1# is (QPSK, a 1/3Turbo sign indicating number) that ofdm system modulation coding mode (MCS) is divided into 6 kinds, and 2# is (QPSK, a 1/2Turbo sign indicating number); 3# is (16QAM, a 1/3Turbo sign indicating number), and 4# is (16QAM, a 1/2Turbo sign indicating number); 5# is (64QAM, a 1/3Turbo sign indicating number), and 6# is (64QAM, a 1/2Turbo sign indicating number).
Step S204; UE adds up under all or part of side-play amount; The channel quality measurements of RB, like: signal noise ratio (SNR), signal interference plus noise time selectivity parameter, frequency selectivity parameter than (SINR), signal strength signal intensity, channel, or the combination in any information of above-mentioned parameter.
Step S206, UE calculate under all or part of side-play amount quality index of a channel information based on RB.Quality index of a channel information based on RB refers to; Be quantized value or statistical value to channel quality measurements; And with this quantized value or the pairing RB positional information of statistical value; As corresponding to side-play amount 7, the corresponding equivalent signal interference plus noise of RB8 is 3 or adopts modulation coding mode (MCS) to be 3# for 10dB or grade than (SINR)
Step S208; UE is to BS feedback fraction or whole offset information; For example: UE feeds back under whole 12 side-play amounts to BS; The channel quality information of RB, perhaps UE under BS feedback fraction side-play amount, the channel quality information of RB; For example only feed back UE and think all or part of RB channel quality information under RB channel quality best or a plurality of preferably side-play amount or side-play amount and the respective offsets amount or the further statistical information of all or part of RB channel quality information under side-play amount and the respective offsets amount.Should use in the instance particularly, 50 RB positions and corresponding CQI under UE feedback 1～12 all side-play amounts, or feed back a side-play amount in 1～12 side-play amount, like side-play amount 7.
Step S210 according to side-play amount selection principle, confirms side-play amount.BS receives the offset information set of Y UE feedback, and wherein Y is smaller or equal to X, according to side-play amount selection principle (as, make to Y UE and send data, throughput is maximum, or to the summation maximum of the Y subchannel capacity of Y UE transmission), confirm side-play amount.
Step S212, BS sends data under new RB configuration.BS notifies the recipient to refresh side-play amount, and all or part of UE in X UE sends data on the RB of the correspondence of the side-play amount after refreshing;
Step S214, UE receives and issues the data of oneself according on the corresponding RB of the side-play amount of resource assignment information after refreshing.(step S204-step S214 is that transmit leg sends the flow process of data for simultaneously X recipient)
Instance 2: transmit leg is selected a side-play amount voluntarily, and wherein, transmit leg is BS, and the recipient is UE
As shown in Figure 3, the present invention includes following processing under this instance:
Step S302 confirms the side-play amount set according to the radio-resource-configuration attribute in the wireless resource block;
Suppose that it is 9MHz that ofdm system carries the data frequency resource bandwidth, subcarrier spacing is 15KHz, is 600 except the useful sub-carrier number of direct current (being the 0Hz subcarrier) then, set from-4.5MHz is to 4.5MHz, subcarrier (sub-carrier) is numbered SC0～SC599; (RB0～RB49), each RB comprises 12 number of sub-carrier to 50 Resource Block, and the side-play amount set is for { 0,1,2; 3,4,5,6,7; 8,9,10,11}, RB are the centralised allocation pattern; Be that subcarrier among each RB is continuous, like corresponding and 0 side-play amount, RB0 comprises subcarrier SC0, SC1 ..., SC11; RB1 comprises SC12, SC13 ..., SC23, and the like, the subcarrier number that different RB comprises is different.RB can also be the distributed allocation pattern; That is, it is (like the mapping relations of LSC0～LSC599) and physically discrete subcarrier number, for example corresponding with the m+12 * n logical sub carrier wave and the m * 50+n physical sub-carrier to set up the numbering of continuous sub-carriers in logic; M=0～11 wherein, n=0～49.Under the distributed allocation pattern, corresponding to 0 side-play amount, RB0 comprises subcarrier LSC0, LSC1 ..., LSC11, RB1 comprise LSC12, LSC13 ..., LSC23, and the like.It is respectively that 1# is (QPSK, a 1/3Turbo sign indicating number) that ofdm system modulation coding mode (MCS) is divided into 6 kinds, and 2# is (QPSK, a 1/2Turbo sign indicating number); 3# is (16QAM, a 1/3Turbo sign indicating number), and 4# is (16QAM, a 1/2Turbo sign indicating number); 5# is (64QAM, a 1/3Turbo sign indicating number), and 6# is (64QAM, a 1/2Turbo sign indicating number);
Step S304, BS are with current side-play amount, and the part or all of UE on corresponding RB in X UE sends data;
Step S306, BS add up under the current side-play amount, the transmission quality of data.Data are sent quality can be with reliability index such as FER, bit error rates for estimating.Reliability index can be that the affirmation information (as: ACK/NACK) of one or more recipient's feedbacks or the statistics of metrical information are obtained, and also can add up according to the BS number of retransmissions;
Step S308, BS adjusts side-play amount according to the variation that data are sent quality, for example; Be provided with one and send quality; When the transmission quality is lower than this thresholding, begin to adjust side-play amount, find the feasible transmission of the whole side-play amount of a best best in quality up to the improvement of transmission quality or in the side-play amount set.Adjustment repeatedly when all being lower than thresholding for avoiding under all side-play amounts sending quality can also be provided with adjustment cycle, in adjustment cycle, finds to stop adjustment after sending top-quality side-play amount, begins up to next adjustment cycle, repeats adjustment process again;
Step S310, BS attempt the adjustment side-play amount, and are attempting sending data on the pairing RB of adjusted side-play amount, attempt adjustment up to side-play amount and finish;
Step S312 finishes if attempt adjustment, then carries out step S314, does not finish then to carry out step S310 if attempt adjustment;
Step S314 selects to send side-play amount the best in quality from try result, the newest side-play amount, and send data on the pairing RB of the side-play amount after refreshing, return step S306.
Like this, by means of the present invention, can be through changing the sub-carrier configuration among the RB, make in the ofdm system bandwidth and to optimize for one or more recipients on the channel capacity statistical significance based on the subchannel of RB bandwidth, and then improved the throughput of transmitting.
The above is merely the preferred embodiments of the present invention, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.All within spirit of the present invention and principle, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. the method for dynamic regulation of wireless resource block configuration based on side-play amount is characterized in that, comprising:
Step S102 confirms the side-play amount set according to the radio-resource-configuration attribute in the wireless resource block;
Step S104 selects a side-play amount to cycle or aperiodic, and changes the radio-resource-configuration in the part or all of wireless resource block according to the said side-play amount of selecting from said side-play amount set; And
Step S106 is according to the Radio Resource block dispatching data to be transmitted after changing;
In said step S102, said radio-resource-configuration attribute is the radio-resource-configuration mode in the wireless resource block, comprising: mode one, and all wireless resource block configurations of ofdm system are identical; Mode two, the wireless resource block configuration of ofdm system is different;
In said step S102, confirm that the processing of side-play amount set is specially:
The mode of the radio-resource-configuration in wireless resource block be said mode for the moment, select part or all of side-play amount among 0～A-1 as the element in the said side-play amount set, wherein, A is the sub-carrier number in the wireless resource block; And
When the mode of the radio-resource-configuration in the wireless resource block is said mode two, select part or all of side-play amount among 0～B-1 as the element in the said side-play amount set, wherein, B is the total number of sub-carriers in the ofdm system.
2. method according to claim 1 is characterized in that, in said step S104, the processing of a side-play amount of selection from said side-play amount set of cycle or ground aperiodic is specially:
Transmit leg voluntarily or according to recipient's feedback information period or aperiodic ground from said side-play amount set, select a side-play amount.
3. method according to claim 2 is characterized in that, said transmit leg selects the processing of a side-play amount to be specially according to said recipient's feedback information:
Said recipient adds up under the part or all of side-play amount, the channel quality test value of wireless resource block;
Under said recipient's calculating section or the whole side-play amount, based on the quality index of a channel information of wireless resource block;
The said transmit leg feedback fraction of said receive direction or whole offset information; And
Said transmit leg is selected a side-play amount according to predetermined side-play amount selection principle.
4. method according to claim 3 is characterized in that, said offset information be following any:
Side-play amount;
Side-play amount and corresponding quality index of a channel information;
Side-play amount set and corresponding quality index of a channel ensemble of communication;
Side-play amount and corresponding channel quality test value;
Side-play amount set and corresponding channel quality test value set.
5. method according to claim 2 is characterized in that, said transmit leg selects the processing of a side-play amount to be specially voluntarily:
The data that said transmit leg is added up under the current side-play amount are sent quality;
Said transmit leg sends the variation adjustment side-play amount of quality according to data;
Said transmit leg is attempted the adjustment side-play amount, and on the corresponding wireless resource block of adjusted side-play amount, sends data, attempts adjustment up to side-play amount and finishes; And
After attempting the adjustment end, said transmit leg selects to send a side-play amount the best in quality from try result.
6. method according to claim 1 is characterized in that, in said step S104, the processing that changes the radio-resource-configuration in the part or all of wireless resource block is specially:
Transmit leg according to the predetermined migration mapping mode, changes the subcarrier composition that comprises in the part or all of wireless resource block according to the said side-play amount of selecting.
7. method according to claim 6 is characterized in that, said predetermined migration mapping mode is: under specific side-play amount, and the logical number of continuous sub-carriers and the physically mapping relations of the physics numbering of discrete subcarrier in logic; Wherein, define the numbering of wireless resource block and the logical number of corresponding subcarrier in advance.
8. method according to claim 7 is characterized in that, when having static wireless resource block, the logical number of the subcarrier in the said static wireless resource block is identical under different side-play amounts with the mapping relations of physics numbering.
9. method according to claim 1 is characterized in that, in said step S106, is specially according to the processing of the Radio Resource block dispatching data to be transmitted after changing:
Transmit leg sends data to be transmitted according to the scheduling strategy scheduling to one or more recipients on the wireless resource block after the said change.
10. according to each described method in the claim 1 to 9, it is characterized in that in said step S102, said wireless resource block comprises: running time-frequency resource, any in running time-frequency resource and code source or the space resources or two s' combination.
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| CN2007101380968A CN101111048B (en) | 2007-08-15 | 2007-08-15 | Method for dynamic regulation of wireless resource block configuration based on offset |
| PCT/CN2007/003375 WO2009021369A1 (en) | 2007-08-15 | 2007-11-29 | A method for adjusting dynamically the wireless resource block allocation based on the offsets |
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| CN2007101380968A CN101111048B (en) | 2007-08-15 | 2007-08-15 | Method for dynamic regulation of wireless resource block configuration based on offset |
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| KR100913099B1 (en) * | 2008-01-07 | 2009-08-21 | 엘지전자 주식회사 | A method for scheduling of distributed virtual resource blocks |
| CN101635881B (en) * | 2008-07-23 | 2012-05-09 | 中兴通讯股份有限公司 | Multimedia broadcast and multicast service resource allocating method |
| CN101640656B (en) * | 2008-07-31 | 2012-05-23 | 中兴通讯股份有限公司 | Channel quality index feedback method, receiver and transmitter |
| MY154740A (en) * | 2008-10-20 | 2015-07-15 | Panasonic Ip Corp America | Wireless communication base station device and division number determination method |
| CN105338558B (en) * | 2014-07-30 | 2019-06-18 | 上海诺基亚贝尔股份有限公司 | A kind of method, equipment and system for LTE communication system interference processing |
| US9906346B2 (en) * | 2014-11-21 | 2018-02-27 | Futurewei Technologies, Inc. | System and method for intelligent channel state information selection |
| CN105991235B (en) * | 2015-03-04 | 2020-10-30 | 株式会社Ntt都科摩 | Method for adjusting code modulation scheme, user equipment and base station |
| EP3639586A4 (en) * | 2017-06-16 | 2021-01-27 | Motorola Mobility LLC | Apparatuses and methods for determining time delay |
| CN114846872A (en) * | 2019-12-31 | 2022-08-02 | 华为技术有限公司 | Resource indication method, device and system |
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| CN1463099A (en) * | 2003-06-18 | 2003-12-24 | 清华大学 | Scheduling method for ensuring service quality of real time operation in OFDM |
| CN1808961A (en) * | 2006-02-06 | 2006-07-26 | 北京邮电大学 | Uplink multi-user pilot method for interference depression between cells |
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| KR100895165B1 (en) * | 2004-07-10 | 2009-05-04 | 삼성전자주식회사 | Dynamic resource allocation method for an ofdma system |
| DE602005004173T2 (en) * | 2005-11-10 | 2009-01-02 | Research In Motion Ltd., Waterloo | Method and apparatus for channel allocation for data communication in a radio communication system |
| KR100746553B1 (en) * | 2005-12-09 | 2007-08-06 | 한국전자통신연구원 | Apparatus and method for CFO aided timing offset tracking for OFDM system |
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| CN1463099A (en) * | 2003-06-18 | 2003-12-24 | 清华大学 | Scheduling method for ensuring service quality of real time operation in OFDM |
| CN1808961A (en) * | 2006-02-06 | 2006-07-26 | 北京邮电大学 | Uplink multi-user pilot method for interference depression between cells |
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| CN101111048A (en) | 2008-01-23 |
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