CN101449535A - A method of configuring wireless resource for effective and efficient transmission in a wireless communication system - Google Patents
A method of configuring wireless resource for effective and efficient transmission in a wireless communication system Download PDFInfo
- Publication number
- CN101449535A CN101449535A CNA2007800183532A CN200780018353A CN101449535A CN 101449535 A CN101449535 A CN 101449535A CN A2007800183532 A CNA2007800183532 A CN A2007800183532A CN 200780018353 A CN200780018353 A CN 200780018353A CN 101449535 A CN101449535 A CN 101449535A
- Authority
- CN
- China
- Prior art keywords
- node
- piece
- ofdm
- packet
- tone
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Landscapes
- Mobile Radio Communication Systems (AREA)
Abstract
The present invention discloses a method of transmitting a data packet in a orthogonal frequency division multiplexing (OFDM) system. More specifically, the method includes receiving feedback information from an access terminal (AT), configuring the data packet for indoor environment or outdoor environment with at least one of variable duration of cyclic prefix (CP) and of data portion and variable number of CPs based on the feedback information, and transmitting the configured data packet to the AT.
Description
Technical field
The present invention relates to a kind of method that transmits data, and especially, the present invention relates to a kind of method that is used to the effective and high efficiency of transmission allocation radio resource in the wireless communication system.
Background technology
In cellular telecommunication world, those skilled in the art often use term 1G, 2G and 3G.These terms refer to employed respectively for cellular technology.1G refers to the first generation, and 2G refers to the second generation, and 3G refers to the third generation.
1G refers to the analog telephone system that is known as AMPS (advanced mobile phone service) telephone system.2G is generally used for indicating the Digital Cellular System of popularizing in the whole world, and comprises CDMAOne, global system for mobile communications (GSM) and time division multiple access (TDMA).Compare with the 1G system, the 2G system can support the more user of quantity at close quarters.
3G is commonly referred to as the current Digital Cellular System of developing.These 3G communication systems conceptive be similar each other, but also have some significant difference.
In wireless communication system now, user's (or mobile radio station) can freely roam around when enjoying no break in service.For this purpose, importantly, design and in all kinds of different conditions of wireless system and environment, to improve the efficient of communication system service and the scheme and the technology of usefulness.In order to tackle various conditions and environment, and strengthen communication service, can use the whole bag of tricks that comprises in reducing unnecessary signal is transmitted in to discharge resource, and promote more effective and transmit efficiently.
Summary of the invention
Correspondingly, the present invention relates to a kind of method that is used to the effective and high efficiency of transmission allocation radio resource in the wireless communication system, this method has eliminated basically because the restriction of correlation technique and one or more problems that defective is caused.
Technical problem
An object of the present invention is to provide a kind of method that is used for transmitting packet in OFDM (OFDM) system.
Another object of the present invention provides a kind of method that is used for specifying in OFDM (OFDM) system Radio Resource.
Technical solution
Attendant advantages of the present invention, target and feature will partly be set forth in subsequent descriptions, and for the those of ordinary skills that consult subsequent descriptions part be become obviously, perhaps also can learn from the practice of the present invention.Target of the present invention and other advantages can realize by the structure that particularly points out in written description and claim and accompanying drawing and obtain.
In order to realize these targets and other advantages, and according to here realizing and broadly described purpose of the present invention, a kind of being used for comprises in the method for OFDM (OFDM) system transmission packet: receive the feedback information from access terminal (AT), have at least one the packet that is used for indoor environment and outdoor environment among the CP of the Cyclic Prefix (CP) of variable duration and data division and variable number according to feedback information configuration, and the packet of being disposed is sent to AT.
In another aspect of the present invention; a kind of being used for specifies the method for Radio Resource to comprise in OFDM (OFDM) system: Radio Resource is configured; so that it is corresponding with node tree; it from node tree each user's specified node; each user at least one node of all using specified node and coming from specified node wherein; and; if at least one node is not designated from node tree, then with described at least one not specified node be assigned in routine data tone, protection tone or the pilot tones at least one.
In another aspect of the present invention; a kind of being used for specifies the method for Radio Resource to comprise in OFDM (OFDM) system: Radio Resource is configured; so that it is corresponding with node tree; each Radio Resource is assigned to node in the node tree; wherein this node is piece (tile); if at least one piece is not used, then with described at least one unspecified at least one that is assigned in routine data tone, protection tone or the pilot tones.
It should be understood that about above-mentioned generality description of the present invention and subsequent detailed description all be exemplary and illustrative, and these descriptions aim to provide about claimed of the present invention illustrating further.
Description of drawings
Here provide about further understanding of the present invention by comprising accompanying drawing, these accompanying drawings will be merged in and constitute the application's a part, and they have described one or more embodiment of the present invention, and are used to explain principle of the present invention together with the description.In the accompanying drawings:
Fig. 1 is the illustration diagram that illustrates than the long data element duration;
Fig. 2 is the illustration diagram that the superframe structure among FL and the RL is shown;
Fig. 3 is another illustration diagram that the superframe structure among FL and the RL is shown; And
Fig. 4 is the illustration diagram that the tree structure that is used for resource allocation is shown.
Embodiment
Now will be in detail with reference to the preferred embodiments of the present invention, the example of these embodiment is illustrated in the accompanying drawings.As possible, the identical Reference numeral same or analogous part of index all the time in the accompanying drawings.
In transfer of data, the environment of transmitter and/or receiver might influence transmission.This environment can be divided into two classes-indoor environment and outdoor environment.
In indoor environment, it is less usually to postpone expansion, and transmitter and/or receiver probably are that low speed is mobile or fixed.As a result, in this environment (for example indoor environment), owing to can use narrower tone (or subcarrier), therefore, Cyclic Prefix (CP) length of OFDM (OFDM) can reduce.
Because the shorter CP of each code element, the energy that is used for transfer of data so can promote because of less CP expense.That is to say that by using narrower OFDM tone, this narrower OFDM tone produces the long data symbols duration, this can further increase the total time portion that is used for transfer of data.
Fig. 1 is the illustration diagram that illustrates than the long data element duration.With reference to figure 1, previous OFDM code element has two (2) CP, and wherein each CP has the length of x chip, and what follow thereafter then is that length is the data symbols of 128 chips.In new OFDM code element, wherein only having (a 1) length is the CP of x chip, and what follow thereafter is that length is the data symbols of 256 chips.Here, previous OFDM code element (or top code element) can be considered to be the symbol design that is used for outdoor environment, and new OFDM code element (or bottom code element) can be considered to be the symbol design that is used for indoor environment.
In other words, the OFDM code element at top needs two (2) CP on duration T, and bottom (new) OFDM code element then only needs a CP.This is the example that CP length is chosen as " x ".Can use other CP length equally, and make the quantity or the length that will change data chips like this.With regard to indoor environment, CP length can be littler.
In addition, the example of Fig. 1 is used 128 chips at data division in the OFDM code element of top (before).But, also be the sample chip size (for example 256 chips) that can use other.In addition, not need as in as above example be two (2) to described multiple.Also can use other multiples, for example multiple 3,4 or the like.
Because user's mobility, the user often enters indoor environment and moves to indoor environment from outdoor environment, and vice versa.Usually, in cellular system, OFDM numerology (numerology) is designed to optimize performance in outdoor environment.Equally, also can be designed to be more effectively to be used for indoor purposes in other one or more set of form or OFDM numerology.
Because mobile radio station (or user) is roamed between the indoor and outdoors environment, therefore, can periodically aim at the OFDM symbol boundaries of indoor and outdoors form, thus at these two kinds of environment synchronization frame/structure of time slot.When mobile radio station is mobile between two kinds of environment, the delay that this method can be eliminated the synchronous of goal systems and catch.This method can also be used for designing the system's (for example using different-format in time division multiplexing mode in different staggered (interlace)) that is suitable for these two kinds of environment, so that facilitate two kinds of bumpless transfer between the environment.
For example, one staggered can be used for indoor, and another staggered can be used for outdoor.In other words, the son that is used for indoor environment and outdoor environment divides into groups to interlock.Do like this and help indoor and borderline region outdoor cell.In addition, can come adaptive staggered mixing (for example indoor and outdoors is staggered) according to the business demand between the indoor and outdoors user.
Embodiments of the invention have been described the set of the OFDM form that is suitable for indoor use, and its element duration is the several times of outdoor environment form.The symbol boundaries of these two kinds of forms is periodically aimed at, so that identical frame/structure of time slot can be used for two kinds of environment.In addition, a system can use unified frame/structure of time slot to carry out time-multiplexed to this OFDM code element of two types.
With can be used for more than or equal to the corresponding minimum fast Fourier transform of the sample frequency of system bandwidth (FFT) size transmitting and/receive ofdm signal.For example, under the situation based on the clock of 1.68MHz, can use size in outdoor deployment (or outdoor environment) is 1536 FFT size, is used for the system bandwidth up to 20.16MHz, is not generally used for 2048 of this system bandwidth and do not use.Will discuss other examples hereinafter with different CP and pitch interval.
Below describing what relate to is OFDM symbol design and the numerology that is associated with different symbol design.For example, concerning outdoor environment, this design can be based on 1.2288MHz and/or 1.68MHz clock (or chip) speed.The form of outdoor environment can be based on conventional design, and the form of indoor environment can have the narrower at interval shorter CP of tone (or subcarrier).Thus, the CP expense can reduce.In other words, because the less CP expense of each time slot/frame, this element duration can be the twice of outdoor element duration.At last, can aim at time slot/frame structure at indoor and/or outdoor deployment (or environment).
Following table shows the various examples of the OFDM symbol design numerology that is used for the indoor and outdoors environment.Actual OFDM symbol design numerology is not limited to following example, on the contrary, can implement different digital and learn.
Table 1 shows the example of the OFDM symbol design numerology that is used for outdoor deployment (or environment).Here, chip (or clock) is based on 1.2288MHz's.
[table 1]
Shown in the table 2 is the example that is used for the new OFDM symbol design numerology of indoor environment, and wherein this example will be used in combination with the CP that has based on the 6.51 outdoor μ s of 1.2288MHz clock.
[table 2]
Shown in the table 3 is the example that is used for the new OFDM symbol design numerology of indoor environment, and wherein this example will be used in combination with the CP that has based on the 13.02 outdoor μ s of 1.2288MHz clock.
[table 3]
Shown in the table 4 is the example that is used for the new OFDM symbol design numerology of indoor environment, and wherein this example will be used in combination with the CP that has based on the 19.53 outdoor μ s of 1.2288MHz clock.
[table 4]
Shown in the table 5 is the example that is used for the new OFDM symbol design numerology of indoor environment, and wherein this example will be used in combination with the CP that has based on the 26.04 outdoor μ s of 1.2288MHz clock.
[table 5]
Shown in the table 6 is the example that is used for the OFDM symbol design numerology of outdoor environment.Here, spreading rate is based on the clock of 1.68MHz.
[table 6]
Shown in the table 7 is the example that is used for the new OFDM symbol design numerology of indoor environment.Here, spreading rate is based on the 1.68MHz clock.
[table 7]
Shown in the table 8 is the example that is used for the OFDM symbol design numerology of outdoor environment.Here, spreading rate is based on the 1.2288MHz clock.
[table 8]
Shown in the table 9 is the example that is used for indoor OFDM symbol design numerology, and this example will be used in combination with the CP+W that has based on 9.77 μ s of the outdoor environment of 1.2288MHz clock.
[table 9]
Shown in the table 10 is the example that is used for indoor OFDM symbol design numerology, and this example will be used in combination with the CP+W that has based on 16.28 μ s of the outdoor environment of 1.2288MHz clock.
[table 10]
Shown in the table 11 is the example that is used for indoor OFDM symbol design numerology, and this example will be used in combination with the CP+W that has based on 22.79 μ s of the outdoor environment of 1.2288MHz clock.
[table 11]
Shown in the table 12 is the example that is used for indoor OFDM symbol design numerology, and this example will be used in combination with the CP+W that has based on 29.30 μ s of the outdoor environment of 1.2288MHz clock.
[table 12]
Shown in the table 13 is the example that is used for the OFDM symbol design numerology of outdoor environment.Here, spreading rate is based on the 1.68MHz clock.
[table 13]
Shown in the table 14 is the example that is used for the OFDM symbol design numerology of indoor environment, and this example will be used in combination with the CP+W that has based on the 7.14 outdoor μ s of the clock of 1.68MHz.
[table 14]
Shown in the table 15 is the example that is used for the OFDM symbol design numerology of indoor environment, and this example will be used in combination with the CP+W that has based on the 11.90 outdoor μ s of the clock of 1.68MHz.
[table 15]
Shown in the table 16 is the example that is used for the OFDM symbol design numerology of indoor environment, and this example will be used in combination with the CP+W that has based on the 16.67 outdoor μ s of 1.68MHz clock.
[table 16]
Shown in the table 17 is the example that is used for the OFDM symbol design numerology of indoor environment, and this example will be used in combination with the CP+W that has based on the 21.43 outdoor μ s of the clock of 1.68MHz.
[table 17]
Though the form of being discussed is mainly used in indoor environment, they also can be applied to postpone to expand any environment less than CP duration and Hypomobility.
As described, various numerologies can be applied to the indoor and outdoors environment.In operation, this numerology can be disposed by the position of base station (or network).More particularly, base station (BS) or network at first can be determined indoor or outdoor code element numerology according to channel quality information (CQI) and/or sector auxiliary information (for example CQI covers) from access terminal (AT).
If BS or network based CQI determine that AT is positioned at indoor environment, BS (or network) indication AT is used for indoor digital of forward link (FL) so.In other words, BS uses indoor digital to learn and transmits data.
Equally, if BS determines that according to CQI AT is positioned at indoor environment, BS (or network) indication AT is used for indoor digital of reverse link (RL) so.In other words, BS indication AT uses indoor digital to learn during sending data to BS.
Similarly, if BS or network based CQI determine that AT is positioned at outdoor environment, BS (or network) indication AT is used for the outdoor numerology of forward link (FL) so.In other words, BS uses outdoor numerology to transmit data.
Equally, if BS determines that according to CQI AT is positioned at outdoor environment, BS (or network) indication AT is used for the outdoor numerology of reverse link (RL) so.In other words, BS indication AT uses outdoor numerology during sending data to BS.
Showing that AT is arranged in the application of indoor or outdoor indoor or outdoors numerology, AT might move to another position from a position.That is to say that AT can move to outdoor environment from indoor environment, vice versa.In this case, between these environment, can switch (or transfer).
As described, using the indoor or outdoors numerology to transmit between prescribed phase to AT, can use superframe preamble from BS (or network).This superframe comprises 25 physical frames and preamble.Each physical frame all comprises 8 OFDM code elements (8 x 113.93us (6.51usCP)=911.44us) for example.In addition, this preamble has comprised 8 OFDM code elements.In addition, a RL physical frame will be elongated, and aim at FL and RL transmission with the top.Fig. 2 is the illustration diagram that the superframe structure among FL and the RL is shown.Fig. 3 then is another illustration diagram that the superframe structure among FL and the RL is shown.
Concerning indoor and outdoors operation execution mode, some physical frame can be assigned to in-house operation.This information can be included in the superframe preamble.The physical frame that is assigned to indoor environment has the CP duration of minimizing and/or different numerologies.
In addition, can have two kinds of superframe structures-a kind of indoor environment that is used for, another kind then is used for outdoor environment.Here, superframe can be aimed at mutually.These two kinds of frame structures can be shared public superframe preamble, and catching reliably, but they also can have the different physical frames that the CP duration shortens and/or numerology is different.
In ofdm system, the time and the frequency resource of some part can be specified mutually.For the time and the frequency resource of specifying these parts, and promote efficient resource to distribute, all resource division can be become a plurality of chunks (block) (or piece (tile)).That is to say, a plurality of chunks (or piece) can be specified mutually.
Usually, chunk or piece are made up of 16 subcarriers and eight (8) code elements (for example OFDM code element).Described chunk (or piece) can further be divided into sub-piece (sub-tile).
Table 18～21st, each piece all have the example of the piece design of fixing 32 tones (or subcarrier).By allowing each piece all have the tone of fixed qty, can represent the tone (128 tone/pieces) of the unified quantity of each piece, and no matter different sub carrier at interval and CP (Cyclic Prefix)+W (window time).That is to say that the same asset splitting scheme can be used for all scenario.
Shown in the table 18 is all to have fixing 32 tones and subcarrier spacing is the example of the piece design of 4.55kHz at each piece.
[table 18]
| Indoor CP+W (microsecond) | BW(MHz) | Subcarrier spacing (kHz) | Number of tones | Number of symbols | Total tone | Piece X (code element) | Piece Y (tone) | Piece tone (X*Y) | The quantity of piece | The quantity of the extra piece of weighing with 2n | The residue number of tones |
| 8.14 | 1.25 | 4.55 | 270 | 4 | 1080 | 4 | 32 | 128 | 8.4375 | 0 | 14 |
| 1.25 to 2.5 | 4.55 | 540 | 4 | 2160 | 4 | 32 | 128 | 16.875 | 0 | 28 | |
| 25 to 5 | 4.55 | 1080 | 4 | 4320 | 4 | 32 | 128 | 33.75 | 1 | 24 | |
| 5 to 10 | 4.55 | 2160 | 4 | 8640 | 4 | 32 | 128 | 67.5 | 3 | 16 | |
| 10 to 15 | 4.55 | 3240 | 4 | 12960 | 4 | 32 | 128 | 101.25 | 5 | 8 | |
| 15 to 20 | 4.55 | 4320 | 4 | 17280 | 4 | 32 | 128 | 135 | 7 | 0 |
Shown in the table 19 is all to have fixing 32 tones and subcarrier spacing is the example of the piece design of 4.27kHz at each piece.
[table 19]
| Indoor CP+W (microsecond) | BW (MHz) | Subcarrier spacing (kHz) | Number of tones | Number of symbols | Total tone | Piece X (code element) | Piece Y (tone) | Piece tone (X*Y) | The quantity of piece | The quantity of the extra piece of weighing with 2n | The residue number of tones |
| 6.51 | 1.25 | 4.27 | 288 | 4 | 1152 | 4 | 32 | 128 | 9 | 1 | 0 |
| 1.25 to 2.5 | 4.27 | 576 | 4 | 2304 | 4 | 32 | 128 | 18 | 2 | 0 | |
| 2.5 to 5 | 4.27 | 1152 | 4 | 4608 | 4 | 32 | 128 | 36 | 4 | 0 | |
| 5 to 10 | 4.27 | 2304 | 4 | 9216 | 4 | 32 | 128 | 72 | 8 | 0 | |
| 10 to 15 | 4.27 | 3456 | 4 | 13824 | 4 | 32 | 128 | 108 | 12 | 0 | |
| 15 to 20 | 4.27 | 4608 | 4 | 18432 | 4 | 32 | 128 | 144 | 16 | 0 |
Shown in the table 20 is to have fixing 32 tones and subcarrier spacing is the example of the piece design of 4.1kHz at each piece.
[table 20]
| Indoor CP+W (microsecond) | BW (MHz) | Subcarrier spacing (kHz) | Number of tones | Number of symbols | Total tone | Piece X (code element) | Piece Y (tone) | Piece tone (X*Y) | The quantity of piece | The quantity of the extra piece of weighing with 2n | The residue number of tones |
| 9.77 | 1.25 | 4.1 | 300 | 4 | 1200 | 4 | 32 | 128 | 9.375 | 1 | 12 |
| 1.25 to 2.5 | 4.1 | 600 | 4 | 2400 | 4 | 32 | 128 | 18.75 | 2 | 24 | |
| 2.5 to 5 | 4.1 | 1200 | 4 | 4800 | 4 | 32 | 128 | 37.5 | 5 | 16 | |
| 5 to 10 | 4.1 | 2400 | 4 | 9600 | 4 | 32 | 128 | 75 | 11 | 0 | |
| 10 to 15 | 4.1 | 3600 | 4 | 14400 | 4 | 32 | 128 | 112.5 | 16 | 16 | |
| 15 to 20 | 4.1 | 4800 | 4 | 19200 | 4 | 32 | 128 | 150 | 22 | 0 |
Shown in the table 21 is the example that all has the piece design that 32 fixing tones, subcarrier spacing are 3.84kHz at each piece.
| Indoor CP+W (microsecond) | BW (MHz) | Subcarrier spacing (kHz) | Number of tones | Number of symbols | Total tone | Piece X (code element) | Piece Y (tone) | Piece tone (X*Y) | The quantity of piece | The quantity of the extra piece of weighing with 2n | The residue number of tones |
| 6.51 | 1.25 | 3.84 | 320 | 4 | 1280 | 4 | 32 | 128 | 10 | 2 | 0 |
| 1.25 to 2.5 | 3.84 | 640 | 4 | 2560 | 4 | 32 | 128 | 20 | 4 | 0 | |
| 2.5 to 5 | 3.84 | 1280 | 4 | 5120 | 4 | 32 | 128 | 40 | 8 | 0 | |
| 5 to 10 | 3.84 | 2560 | 4 | 10240 | 4 | 32 | 128 | 80 | 16 | 0 | |
| 10 to 15 | 3.84 | 3840 | 4 | 15360 | 4 | 32 | 128 | 120 | 24 | 0 | |
| 15 to 20 | 3.84 | 5120 | 4 | 20480 | 4 | 32 | 128 | 160 | 32 | 0 |
In addition, each time can be assigned to the user as binary tree node shown in Figure 4.Fig. 4 is the illustration diagram that the tree structure that is used for resource allocation is shown.
With reference to figure 4, node ((8,0)～(8,7)) representative be that bandwidth about table 18 is the piece of 1.25MHz.Node can be specified in different ways.For example, a node can be assigned to a user, and the node of any amount can be assigned to each user, and perhaps a pile node (just (4,1) or (2,1) or (1,0)) can be assigned to a user.Here, (4,1) refer to 2 continuous pieces ((8,2) and (8,3)), and (2,1) refer to 4 continuous pieces ((8,4)～(8,7)), and (1,0) refers to all 8 pieces among the 1.25MHz all are assigned to a user.
In addition, the tree structure of any kind may be used to satisfy the sum of the piece in fixed time and the frequency resource.In other words, the tree structure of other types can be used to realize identical purpose equally.As described, Fig. 4 is an example (for example binary system node tree) of tree structure.
If above-mentioned binary tree structure (or other any tree structures) is used for resource allocation, might there be extra (or remaining) piece and/or extra (or remaining) tone so.This situation is to show in last two (2) row (mark " quantity of extra piece " and " residue number of tones ") of table 18～21.
(or remaining) piece that these are extra and/or tone can be used as routine data tone, protection tone or pilot tone and transfer to use.Especially, extra (or residue) tone can be used as the pilot tone of inserting and transfers to use between piece.
According to the design of the piece shown in table 18～21, the design of the piece that can implement to add.What these piece designs were paid close attention to is to reduce extra (or remaining) piece by the size of controlling or adjust piece.
Table 22～25th, each piece all have the piece design example of the tone of varying number.By allowing each piece all have the tone of varying number, can reduce the quantity of extra (or remaining) piece, promote more effective resource allocation thus.
Shown in the table 22 is that each piece all has fixing 33 tones and subcarrier spacing is the example of the piece design of 4.55kHz.
[table 22]
| Indoor CP+W (microsecond) | BW (MHz) | Subcarrier spacing (kHz) | Number of tones | Number of symbols | Total tone | Piece X (code element) | Piece Y (tone) | Piece tone (X*Y) | The quantity of piece | The quantity of the extra piece of weighing with 2n | The residue number of tones |
| 8.14 | 1.25 | 4.55 | 270 | 4 | 1080 | 4 | 33 | 132 | 8.182 | 0 | 6 |
| 1.25 to 2.5 | 4.55 | 540 | 4 | 2160 | 4 | 33 | 132 | 16.36 | 0 | 12 | |
| 2.5 to 5 | 4.55 | 1080 | 4 | 4320 | 4 | 33 | 132 | 32.73 | 0 | 24 | |
| 5 to 10 | 4.55 | 2160 | 4 | 8640 | 4 | 33 | 132 | 65.45 | 1 | 15 | |
| 10 to 15 | 4.55 | 3240 | 4 | 12960 | 4 | 33 | 132 | 98.18 | 2 | 6 | |
| 15 to 20 | 4.55 | 4320 | 4 | 17280 | 4 | 33 | 132 | 130.9 | 2 | 30 |
Shown in the table 23 is the example that each piece all has the piece design that 36 fixing tones, subcarrier spacing are 4.27kHz.
[table 23]
| Indoor CP+W (microsecond) | BW (MHz) | Subcarrier spacing (kHz) | Number of tones | Number of symbols | Total tone | Piece X (code element) | Piece Y (tone) | Piece tone (X*Y) | The quantity of piece | The quantity of the extra piece of weighing with 2n | The residue number of tones |
| 6.51 | 1.25 | 4.27 | 288 | 4 | 1152 | 4 | 36 | 144 | 8 | 0 | 0 |
| 1.25 to 2.5 | 4.27 | 576 | 4 | 2304 | 4 | 36 | 144 | 16 | 0 | 0 | |
| 2.5 to 5 | 4.27 | 1152 | 4 | 4608 | 4 | 36 | 144 | 32 | 0 | 0 | |
| 5 to 10 | 4.27 | 2304 | 4 | 9216 | 4 | 36 | 144 | 64 | 0 | 0 | |
| 10 to 15 | 4.27 | 3456 | 4 | 13824 | 4 | 36 | 144 | 96 | 0 | 0 | |
| 15 to 20 | 4.27 | 4608 | 4 | 18432 | 4 | 36 | 144 | 128 | 0 | 0 |
Table 24 is described is the example that each piece all has the piece design that 37 fixing tones, subcarrier spacing are 4.1kHz.
[table 24]
| Indoor CP+W (microsecond) | BW (MHz) | Subcarrier spacing (kHz) | Number of tones | Number of symbols | Total tone | Piece X (code element) | Piece Y (tone) | Piece tone (X*Y) | The quantity of piece | The quantity of the extra piece of weighing with 2n | The residue number of tones |
| 9.77 | 1.25 | 4.1 | 300 | 4 | 1200 | 4 | 37 | 148 | 8.108 | 0 | 4 |
| 1.25 to 2.5 | 4.1 | 600 | 4 | 2400 | 4 | 37 | 148 | 16.22 | 0 | 8 | |
| 2.5 to 5 | 4.1 | 1200 | 4 | 4800 | 4 | 37 | 148 | 32.43 | 0 | 16 | |
| 5 to 10 | 4.1 | 2400 | 4 | 9600 | 4 | 37 | 148 | 64.86 | 0 | 32 | |
| 10 to 15 | 4.1 | 3600 | 4 | 14400 | 4 | 37 | 148 | 97.3 | 1 | 11 | |
| 15 to 20 | 4.1 | 4800 | 4 | 19200 | 4 | 37 | 148 | 129.7 | 1 | 27 |
Table 25 is described is the example that each piece all has the piece design that 40 fixing tones, subcarrier spacing are 3.84kHz.
[table 25]
| Indoor CP+W (microsecond) | BW (MHz) | Subcarrier spacing (kHz) | Number of tones | Number of symbols | Total tone | Piece X (code element) | Piece Y (tone) | Piece tone (X*Y) | The quantity of piece | The quantity of the extra piece of weighing with 2n | The residue number of tones |
| 6.51 | 1.25 | 3.84 | 320 | 4 | 1280 | 4 | 40 | 160 | 8 | 0 | 0 |
| 1.25 to 2.5 | 3.84 | 640 | 4 | 2560 | 4 | 40 | 160 | 16 | 0 | 0 | |
| 2.5 to 5 | 3.84 | 1280 | 4 | 5120 | 4 | 40 | 160 | 32 | 0 | 0 | |
| 5 to 10 | 3.84 | 2560 | 4 | 10240 | 4 | 40 | 160 | 64 | 0 | 0 | |
| 10 to 15 | 3.84 | 3840 | 4 | 15360 | 4 | 40 | 160 | 96 | 0 | 0 | |
| 15 to 20 | 3.84 | 5120 | 4 | 20480 | 4 | 40 | 160 | 128 | 0 | 0 |
It is as shown in the table, according to bandwidth and/or pitch interval, extra (or remaining) piece might occur.For instance, a small amount of extra or remaining (for example 1 or 2 piece) can be as the protection tone.Usually, in the 5MHz bandwidth, two (2) pieces are used to protect tone.As an alternative, extra or remaining also can be used for data tones and/or pilot tones.These extra or remaining tones can also be to use with can be at routine data tone, protection tone or the pilot tones that interblock inserts identical mode.
It will be apparent to those skilled in the art that under the situation that does not break away from essence of the present invention or scope, can carry out various modifications and changes in the present invention.Thus, if these fall into about modifications and variations of the present invention in the scope of accessory claim and equivalent thereof, the present invention is intended to cover these modifications and changes so.
Claims (20)
1. method that is used for transmitting packet in OFDM (OFDM) system, this method comprises:
Reception is from the feedback information of access terminal (AT);
Configuration has at least one the packet that is used for indoor environment and outdoor environment among the CP of the Cyclic Prefix (CP) of variable duration and data division and variable number according to described feedback information; And
The packet of being disposed is sent to described AT.
2. method according to claim 1, wherein said feedback information are at least one in channel quality information and the sector auxiliary information.
3. method according to claim 1, a plurality of physical frames and preamble are represented in wherein said packet.
4. method according to claim 3, wherein said preamble indicate this packet to be used for indoor environment or outdoor environment.
5. method according to claim 1, the packet that wherein is used for reverse link and forward link is periodically aimed at.
6. method according to claim 1 is in the packet agent's room that is wherein disposed and the time-multiplexed form of outdoor environment.
7. method according to claim 1, wherein the packet of being disposed has the spreading rate of 1.2288MHz or 1.68MHz and multiple thereof.
8. method according to claim 1 is wherein compared with the packet of outdoor environment, and the packet of disposing for indoor environment has the narrower shorter CP of pitch interval.
9. method of in OFDM (OFDM) system, specifying Radio Resource, this method comprises:
Described Radio Resource is configured, so that corresponding with node tree;
From described node tree each user's specified node, at least one node that wherein said each user uses specified node and comes from specified node; And
If at least one node is specified from described node tree, then will be described at least one not specified node be assigned to the routine data tone, protect at least one in tone or the pilot tones.
10. method according to claim 9, wherein said Radio Resource is a piece.
11. method according to claim 10, wherein said includes 16 subcarriers and 8 OFDM code elements.
12. method according to claim 10, wherein said has configurable subcarrier of quantity and OFDM code element.
13. method according to claim 12, wherein said comprises at least 32 subcarriers and at least four OFDM code elements.
14. method according to claim 9, wherein said ofdm system have variable sub carriers interval and Cyclic Prefix.
15. method according to claim 9, wherein said node tree are the binary system node trees.
16. a method of specifying Radio Resource in OFDM (OFDM) system, this method comprises:
Described Radio Resource is configured, so that corresponding with node tree;
Each Radio Resource is assigned to node in the node tree, and wherein this node is a piece;
If at least one piece is not used, then with described at least one unspecified at least one that is assigned in routine data tone, protection tone or the pilot tones.
17. method according to claim 16, wherein said is configurable.
18. method according to claim 17, wherein said comprises at least 32 subcarriers and at least four OFDM code elements.
19. method according to claim 16, wherein said untapped is used as the pilot tones that is inserted between the piece.
20. method according to claim 16, wherein said node tree are the binary system node trees.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US80170206P | 2006-05-19 | 2006-05-19 | |
| US60/801,702 | 2006-05-19 | ||
| US60/802,861 | 2006-05-22 | ||
| US60/820,085 | 2006-07-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101449535A true CN101449535A (en) | 2009-06-03 |
Family
ID=40743850
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007800183532A Pending CN101449535A (en) | 2006-05-19 | 2007-05-21 | A method of configuring wireless resource for effective and efficient transmission in a wireless communication system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101449535A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105009537A (en) * | 2013-03-11 | 2015-10-28 | 高通股份有限公司 | Effective utilization of cyclic prefix in OFDM systems under benign channel conditions |
| CN106063353A (en) * | 2014-03-07 | 2016-10-26 | 华为技术有限公司 | Systems and methods for OFDM with flexible sub-carrier spacing and symbol duration |
| CN107408980A (en) * | 2015-03-31 | 2017-11-28 | 华为技术有限公司 | System and method for the adaptive frame structure with filtering OFDM |
| CN107465496A (en) * | 2016-06-06 | 2017-12-12 | 上海朗帛通信技术有限公司 | A kind of method and apparatus in radio communication |
| CN107734693A (en) * | 2016-08-12 | 2018-02-23 | 华硕电脑股份有限公司 | The method and apparatus for being used to determine underlying parameter bandwidth in wireless communication system |
| CN109937562A (en) * | 2016-11-29 | 2019-06-25 | 高通股份有限公司 | Channel access for hybrid parameter collection carrier wave |
| CN114466432A (en) * | 2020-11-09 | 2022-05-10 | 诺基亚技术有限公司 | Measurement adjustment at low mobility |
-
2007
- 2007-05-21 CN CNA2007800183532A patent/CN101449535A/en active Pending
Cited By (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10348467B2 (en) | 2013-03-11 | 2019-07-09 | Qualcomm Incorporated | Effective utilization of cyclic prefix in OFDM systems under benign channel conditions |
| CN105009537A (en) * | 2013-03-11 | 2015-10-28 | 高通股份有限公司 | Effective utilization of cyclic prefix in OFDM systems under benign channel conditions |
| US11082173B2 (en) | 2014-03-07 | 2021-08-03 | Huawei Technologies Co., Ltd. | Systems and methods for OFDM with flexible sub-carrier spacing and symbol duration |
| US10826657B2 (en) | 2014-03-07 | 2020-11-03 | Huawei Technologies Co., Ltd. | Systems and methods for OFDM with flexible sub-carrier spacing and symbol duration |
| US11239962B2 (en) | 2014-03-07 | 2022-02-01 | Huawei Technologies Co., Ltd. | Systems and methods for OFDM with flexible sub-carrier spacing and symbol duration |
| CN106063353A (en) * | 2014-03-07 | 2016-10-26 | 华为技术有限公司 | Systems and methods for OFDM with flexible sub-carrier spacing and symbol duration |
| US11075722B2 (en) | 2014-03-07 | 2021-07-27 | Huawei Technologies Co., Ltd. | Systems and methods for OFDM with flexible sub-carrier spacing and symbol duration |
| US11063712B2 (en) | 2014-03-07 | 2021-07-13 | Huawei Technologies Co., Ltd. | Systems and methods for OFDM with flexible sub-carrier spacing and symbol duration |
| US10862634B2 (en) | 2014-03-07 | 2020-12-08 | Huawei Technologies Co., Ltd. | Systems and methods for OFDM with flexible sub-carrier spacing and symbol duration |
| US10721041B2 (en) | 2015-03-31 | 2020-07-21 | Huawei Technologies Co., Ltd. | System and method for an adaptive frame structure with filtered OFDM |
| CN107408980A (en) * | 2015-03-31 | 2017-11-28 | 华为技术有限公司 | System and method for the adaptive frame structure with filtering OFDM |
| US11632202B2 (en) | 2015-03-31 | 2023-04-18 | Huawei Technologies Co., Ltd. | System and method for an adaptive frame structure with filtered OFDM |
| CN107408980B (en) * | 2015-03-31 | 2020-12-08 | 华为技术有限公司 | System and method for adaptive frame structure with filtered OFDM |
| US11621809B2 (en) | 2015-03-31 | 2023-04-04 | Huawei Technologies Co., Ltd. | System and method for an adaptive frame structure with filtered OFDM |
| US11374710B2 (en) | 2016-06-06 | 2022-06-28 | Shanghai Langbo Communication Technology Company Limited | Method and device for wireless communication |
| CN107465496B (en) * | 2016-06-06 | 2019-11-29 | 上海朗帛通信技术有限公司 | A kind of method and apparatus in wireless communication |
| CN107465496A (en) * | 2016-06-06 | 2017-12-12 | 上海朗帛通信技术有限公司 | A kind of method and apparatus in radio communication |
| US12003448B2 (en) | 2016-06-06 | 2024-06-04 | Shanghai Langbo Communication Technology Company Limited | Method and device for wireless communication |
| CN107734693A (en) * | 2016-08-12 | 2018-02-23 | 华硕电脑股份有限公司 | The method and apparatus for being used to determine underlying parameter bandwidth in wireless communication system |
| CN107734693B (en) * | 2016-08-12 | 2020-09-22 | 华硕电脑股份有限公司 | Method and apparatus for determining basic parameter bandwidth in wireless communication system |
| CN109937562A (en) * | 2016-11-29 | 2019-06-25 | 高通股份有限公司 | Channel access for hybrid parameter collection carrier wave |
| CN109937562B (en) * | 2016-11-29 | 2022-02-18 | 高通股份有限公司 | Channel access for mixed parameter set carriers |
| CN114466432A (en) * | 2020-11-09 | 2022-05-10 | 诺基亚技术有限公司 | Measurement adjustment at low mobility |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR100995050B1 (en) | A method of configuring wireless resource for effective and efficient transmission in a wireless communication system | |
| RU2325773C1 (en) | Method for separation of subchannel in cellular communication system of orthogonal frequency division multiple access | |
| CN102484579B (en) | Apparatus and method for initialization and mapping of reference signals in a communication system | |
| CN102017461B (en) | Efficient and consistent wireless downlink channel configuration | |
| CN102017696B (en) | The bandwidth expansion of backward compatibility | |
| CN101202585B (en) | Radio communication base station, terminal and method for obtaining system information | |
| CN101409583B (en) | Method and device for transmitting signal | |
| CN110557237B (en) | Wireless communication method and device for reducing network delay | |
| US20080144612A1 (en) | Flexible radio resource sharing in time and frequency domains among TDD communication systems | |
| US20070002958A1 (en) | Apparatus and method for configuring frame in a broadband wireless communication system | |
| CN101507159B (en) | Dispensing device and communication means | |
| US8509053B2 (en) | Method of multiplexing multiple access region | |
| KR20080109931A (en) | Allocation of tones in a multicarrier communication system | |
| SG172723A1 (en) | Wireless resource allocation methods and apparatus | |
| CN101449535A (en) | A method of configuring wireless resource for effective and efficient transmission in a wireless communication system | |
| CN101385262A (en) | Apparatus and method for allocating resources and performing communication in a wireless communication system | |
| KR100886549B1 (en) | Apparatus and method to combat inter-antenna interference in a orthogonal frequency divisiong multiplexing access system | |
| CN101772148B (en) | Auxiliary synchronizing channel configuring method and device, and subcarrier mapping method and device | |
| CN101647304A (en) | Base station device | |
| CN102301793A (en) | Apparatus and method for access stratum management of wireless devices | |
| CN102007791A (en) | Mobile communication system, base station apparatus, user equipment and method | |
| CN101926145A (en) | Communicating over wireless link using data container structure that has partitions of different types | |
| CN101588337B (en) | Method for optimizing time division multiplexing frame structure parameters, communication method, system and terminal | |
| WO2008009011A2 (en) | Uplink timing control signal | |
| CN101925184B (en) | Resource mapping method of broadcast control channel |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20090603 |