CN101199147A - Method and device for distributing up running time-frequency resource - Google Patents
Method and device for distributing up running time-frequency resource Download PDFInfo
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- CN101199147A CN101199147A CNA2006800213923A CN200680021392A CN101199147A CN 101199147 A CN101199147 A CN 101199147A CN A2006800213923 A CNA2006800213923 A CN A2006800213923A CN 200680021392 A CN200680021392 A CN 200680021392A CN 101199147 A CN101199147 A CN 101199147A
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Abstract
A method for distributing the ascending time frequency resource includes the following procedures: multiplexing the user pilot symbols and the data symbol (401) with a time multiplexing mode, and in the multiplexing procedure the frequency resource taken by the user pilot symbol is distributed so as to that the frequency resource taken by the pilot symbol in the time resource less than the frequency resource (402) taken by the corresponding data signal in the time resource. The invention more effectively uses the ascending resource to do the multiplexing of more user information while the user frequency domain channel estimated performance and data transmission performance are guaranteed to unchanged thereby increasing the usage factor of the system resource. Besides, the pilot frequency and data of the ascending user can be guaranteed with better peak-to-average character. At the same time the invention also includes a dispensing device of the ascending time frequency resource.
Description
The distribution method and device of a kind of uplink time/frequency source
Technical field is the present invention relates to wireless communication technology, more specifically to the distribution method and device of a kind of uplink time/frequency source.
Background technology
Since 1990s, multi-transceiver technology turns into the hot spot technology of broadband wireless communications, and its basic thought is that a bandwidth carrier is divided into multiple subcarriers, the simultaneous transmission data on the plurality of subcarrier.Among most system applications, the width of subcarrier is less than the coherence bandwidth of channel, so on frequency-selective channel, and the decline on each subcarrier is flat fading, is adapted to the transmission of high-speed data.
Multi-transceiver technology would generally use channel estimation in frequency domain technology and frequency-domain equalization technology.Some single-carrier systems also can be by carrying out Fourier transform in receiving terminal（FFT, Fourier Transformation), handled with carrying out channel estimation in frequency domain and frequency domain equalization.
Channel estimation in frequency domain generally uses the coherent demodulation method based on auxiliary information, this channel estimation methods based on auxiliary information are to set some known frequency pilot signs in some fixed positions for sending end signal, and channel estimation is carried out using these frequency pilot signs in receiving terminal.
As long as the interval of frequency pilot sign in time and frequency directions is sufficiently small relative to the correlation time of channel and channel coherence bandwidth, relatively good channel estimation effect is can be obtained by receiving terminal.
As shown in figure 1, for downlink, frequency pilot sign includes the frequency pilot sign of common pilot.The general common pilot for issuing all users by base station of channel estimation required for the coherent demodulation of user data is obtained.
As shown in Fig. 2 for up-link, because the channel circumstance of each user is different, the frequency pilot sign that each user is used for channel estimation is special with road pilot tone.In order to ensure the accuracy of channel estimation, the expense of common up dedicated pilot is all than larger.
Meanwhile, uplink control signaling expense is also to need what is considered.For example, wireless communication system generally improves the performance of whole system using methods such as scheduling of resource.These methods can increase the expense of system resource simultaneously.In the system of channeling, different users can be fixed and be arranged in different sons
Take, as shown in Figure 3；With the frequency and time change of wireless channel, the transfer resource of different user, including frequency resource and time resource can also be effectively arranged, with the higher spectrum utilization efficiency of acquisition and user satisfaction.Especially, to frequency scheduling therein, it is necessary to which base station can know the channel information of user's all frequency subbands on schedulable frequency band.This is for up, it usually needs each user for participating in scheduling sends training information on all subbands of schedulable frequency band, to allow base station to know the channel situation of each frequency subband, is scheduled.The training information is needed than larger expense.
In addition, the up signaling of some physical layers that downlink data transmission is brought will also increase overhead, rationally it is multiplexed with up data and pilot tone, such as the feedback information (ACK) that descending HARQ needs.In addition to the quantity for adapting to insertion pilot tone in different translational speeds, system is different, the resource overhead of system can be so reduced, while being also required to increase the signaling of some interactions, this signaling is also required to rationally be multiplexed with up data and pilot tone.
On the other hand, the problem of peak-to-average force ratio of transmission power is also one very important in up-link, existing single-carrier technology, by the carrying that signal is carried out in time domain waveform so that the peak-to-average force ratio of transmission power is than relatively low.Pilot tone is with data typically using time division multiplexing（TDM frequency division multiplexing is then used between) mode, each user data（FDM) mode or time division multiplexing mode, as shown in Figure 2,3, be respectively dispersing mode and centralized system user's channeling in pilot tone layout drawing（By taking 4 users as an example）.In this pilot design mode, pilot tone takes same frequency band with data, and takes all frequency resources in the frequency band.
Therefore, effective multiplexing of up channel how is effectively carried out using ascending resource, the resource utilization of whole system is improved, is the problem of must solving at present.
The content of the invention
The technical problem to be solved in the present invention is that there is provided a kind of the multiplexing that uplink time/frequency source carries out up channel, raising resource utilization ratio, while ensure that the distribution method and device of the uplink time/frequency source of channel estimating performance can be effectively utilized.
The technical solution adopted for the present invention to solve the technical problems is：A kind of distribution method of uplink time/frequency source is provided, this method includes：
Using time-multiplexed mode users multiplexing frequency pilot sign and its data symbol, and in the multiplex process, frequency resource shared by distributing user frequency pilot sign so that frequency pilot sign frequency resource shared in its time resource is negligent of corresponding data symbol frequency resource shared in its time resource.
Rate resource allocation is used to transmit the information of other users or the control information of the user.
Wherein：
Frequency pilot sign described in user terminal hooks the frequency sub-carrier in the frequency resource shared by the occupancy data symbol at interval.
Wherein：
The frequency pilot sign sent by handling pilot frequency sequence to obtain according to the distribution method, so as to have pectination spectral property on frequency domain, obtains one group of broach.
Wherein：
For the respective corresponding frequency pilot sign of different user data symbol, on the frequency band that different user data symbol is each accounted for, the frequency pilot sign each sent is formed by handling each self-corresponding pilot frequency sequence of each user, the frequency pilot sign has respective pectination spectral property, obtain the respective one group of broach of each user, the frequency resource shared by the data symbol be each user each data symbol each shared by frequency band frequency resource.
Wherein：
For the respective corresponding frequency pilot sign of different user data symbol, on the frequency band that different user data symbol is each accounted for, the frequency pilot sign each sent is formed by handling each self-corresponding pilot frequency sequence of each user, the frequency pilot sign has respective pectination spectral property, obtain the respective one group of broach of each user, the frequency resource shared by the data symbol be each user each data symbol each shared by frequency band frequency resource；
Wherein, the residual frequency resource of any one user A in different user any extension broach shared on whole system frequency band is overlapped with the broach shared by least another user's B frequency pilot sign in different user.
Wherein：
User B other control information are transmitted on the surplus resources of the user A.
Wherein：
The residual frequency resource in the time resource of different user frequency pilot sign is allocated for transmitting the information of another user of identical.
Wherein, the user data symbol is time-multiplexed with least two frequency pilot signs so that all to lead
Frequency symbol has described pectination spectral property, or so that portion of pilot symbol has the pectination spectral property.
Wherein, the residual frequency resource allocation is used to transmit being implemented as the information of other users or the control information of the user：
The information of other users or the control information of the user are evenly spaced apart to take the frequency sub-carrier in the residual frequency resource.
Wherein, the residual frequency resource allocation is used to transmit being implemented as the information of other users or the control information of the user：
The information of other users or the control information of the user sent by interval at least two/receive data processing unit in the way of insert in the residual frequency resource.
Wherein, the information of the other users includes the information measured to up channel situation needed for other users.
Wherein, the information measured to up channel situation needed for the other users includes at least one of information, synchronizing information or adaptive pilot selection information of up frequency domain dispatching.
Wherein, the information for up frequency domain dispatching is at least including the subcarrier or subband metrical information for frequency domain dispatching, for one of subcarrier feedback information of frequency domain dispatching.
Wherein, the control information of the user includes at least one of user equipment metrical information, channel quality indication (CQI) information, control information of downlink transfer correlation of user feedback.
Wherein：Frequency sub-carrier in rate resource.
Present invention also offers a kind of distributor of uplink time/frequency source, the device at least includes multiplexing and distribute module, and the module is used for：
Using time-multiplexed mode users multiplexing frequency pilot sign and its data symbol, and in the multiplex process, frequency resource shared by distributing user frequency pilot sign so that frequency pilot sign frequency resource shared in its time resource is negligent of corresponding data symbol frequency resource shared in its time resource.
Wherein, the multiplexing and distribute module are used for：So that the frequency sub-carrier in the evenly spaced frequency resource taken shared by the data symbol of frequency pilot sign described in user terminal.
Wherein, the multiplexing and distribute module are used for：
The frequency pilot sign sent by handling pilot frequency sequence to obtain according to the distribution method, so as to have pectination " Pood's property, get Dao Yi Group broach on frequency domain.
Wherein, the multiplexing and distribute module are used for：
For the respective corresponding frequency pilot sign of different user data symbol, on the frequency band that different user data symbol is each accounted for, the frequency pilot sign each sent is formed by handling each self-corresponding pilot frequency sequence of each user, the frequency pilot sign has respective pectination spectral property, obtain the respective one group of broach of each user, the frequency resource shared by the data symbol be each user each data symbol each shared by frequency band frequency resource.
Wherein, the multiplexing and distribute module are used for：
For the respective corresponding frequency pilot sign of different user data symbol, on the frequency band that different user data symbol is each accounted for, the frequency pilot sign each sent is formed by handling each self-corresponding pilot frequency sequence of each user, there is the frequency pilot sign respective pectination to say characteristic, obtain the respective one group of broach of each user, the frequency resource shared by the data symbol be each user each data symbol each shared by frequency band frequency resource；
Wherein, the residual frequency resource of any one user A in different user any extension ^ ^ teeth shared on whole system frequency band are overlapped with the broach shared by least another user's B frequency pilot sign in different user.
Wherein, the device further comprises surplus resources distribute module, and the module is used for：
The residual frequency resource allocation that the sunset in m sources is foretold is used to transmit the information of other users or the control information of the user<
Wherein, the surplus resources distribute module is used for：The information of defeated another user of identical.
Wherein, the surplus resources distribute module is used for：
The control information of the information of other users or the user is evenly spaced apart to take the frequency sub-carrier in the residual frequency resource.
Wherein, the surplus resources distribute module is used for：
The information of other users or the control information of the user are sent by interval at least two/receive data processing unit in the way of insert in the residual frequency resource.
Wherein, the multiplexing and distribute module are used for:Frequency sub-carrier in frequency resource.
Implement the distribution method and device of uplink time/frequency source of the present invention, pilot tone can be made to take the frequency resource than Sparse, and can effectively utilize the information or the control information of the user of the residual frequency resource transmission other users in the time resource of frequency pilot sign in addition to the frequency resource shared by frequency pilot sign, carry out effective multiplexing of the pilot tone and user profile of up channel, in the case where ensureing that user's channel estimation in frequency domain performance and data transmission performance are constant, the significantly more efficient multiplexing that multi-user information is carried out using ascending resource, so as to improve resource utilization ratio.Further, it is also possible to which ensureing the pilot tone and data of uplink user has preferable peak-to-average force ratio characteristic.
Brief description of the drawings Fig. 1 is the layout drawing of common pilot on downlink；
Fig. 2 is the pilot tone layout drawing in dispersing mode user channeling in up-link；Fig. 3 is the pilot tone layout drawing in centralized system user channeling in up-link；Fig. 4 is the flow chart of the distribution method of uplink time/frequency source of the present invention；
Fig. 5 is the schematic diagram of one embodiment of the invention formation comb spectrum pilot tone；
Fig. 6 is pilot tone time-frequency resource allocating schematic diagram of the one embodiment of the invention in centralized system user's channeling；
Fig. 7 is that one embodiment of the invention sets the sparse degree of pilot tone and the comparison schematic diagram of channel estimating performance；
Fig. 8 is multiple pilot tone time-frequency resource allocating schematic diagrames of the present invention；
The sparse pilot tone that Fig. 9 is the user of the present invention can extend to the distribution schematic diagram of other frequency bands in frequency；
Figure 10 is the schematic diagram of the uplink time/frequency source distributor in the embodiment of the present invention.
Demodulation（Carry out channel estimation）Required time multiplexed pilot takes frequency resource as few as possible, and can information processed.As shown in figure 4, in an embodiment of the present invention, realizing point of the uplink time/frequency source
Method of completing the square comprises the following steps：
Step 401：It is determined that using time-multiplexed mode users multiplexing frequency pilot sign and its data symbol；Wherein, in embodiments of the present invention, it is determined that realizing multiplexing as follows：It is that user's pilot symbol allocations and its data symbol take same frequency band time resource；
Step 402:Using time-multiplexed mode users multiplexing frequency pilot sign and its data symbol, and in the multiplex process, the frequency resource shared by distribution frequency pilot sign so that frequency pilot sign exists after distribution
Step 403 is included, to make full use of above-mentioned allocation result：
Information, it may also be used for transmit the control information of itself；For example, party A-subscriber can be used for transmitting the control information of itself in the surplus resources shared by the user A in frequency band, it may also be used for the business information and control information of transmission party B-subscriber.
Below, with reference to more specific application, embodiments of the present invention is described in detail.Embodiment 1, in this embodiment, same TTI (Transmission Time Intervals）In user data and frequency pilot sign time division multiplexing：
In this embodiment of the invention, be time-multiplexed the data and pilot tone of certain user in each TTI, and a pilot tone is inserted in each TTI, so that pilot tone and data have identical sample rate, same frequency band is taken, but in the frequency band, frequency pilot sign takes the frequency resource fewer than data symbol.This can be accomplished by following process：
Installing user i pilot tone includes Q value), constitute a frequency pilot sign, wherein a length of Ts during each sampling point, the frequency pilot sign of the user can be expressed as d (')=[d^, d k, d^Y (wherein T representing matrixs transposition）.The sampling point in this block is compressed, it is changed into chip duration Tc from duration Ts, the repetition of J times is then carried out to the block again, the frequency pilot sign after being reprocessed is：
, point,
Wherein L represent the block number of repetition ' frequency pilot sign after the reprocessing can further table
It is shown as：
The spectral shape of one group of pectination, our such one group of comb frequency spectrum is called one group of broach, as shown in Figure 5.
Above-mentioned pectination frequency i is general can to have different frequency offset amounts on frequency domain, obtain other group of broach, each group broach is interlaced with each other to come, and pilot tone can select any group of therein.This can be realized in the following way：Select one group of specific phase vectors：
= exp{- · / · Φ(')} , l = Q, ,QL—
Wherein ^ represents phase vectors, and Φ represents phase rotation coefficient.
This group of obtained phase vectors are multiplied with data symbol obtained above by element, are by the frequency pilot sign for obtaining the user i finally:To ensure that the minimum interval between channel estimating performance, frequency pilot sign broach is less than the coherence bandwidth of channel.In time domain, the density and interval for inserting pilot tone do not change, but each pilot tone formation comb spectrum is may be such that on frequency domain, as shown in Figure 5,6, the frequency resource that frequency pilot sign takes in its time resource is so just caused to be less than the frequency resource that corresponding data symbol takes in its time resource, frequency pilot sign ^1Residual frequency resource is formed between tooth.
In the present embodiment, frequency pilot sign uniform intervals take the frequency sub-carrier in its frequency resource.The realization composed by above-mentioned ^ shapes, by changing number of repetition 1 >=2, pilot tone acquisition frequency resource is 1/ of resource in the frequency band.For example as L=2, frequency pilot sign only takes up the subcarrier of the serial number even number or odd number in said frequencies resource.It is of course also possible to use frequency pilot sign non-uniform spacing takes the pattern of the frequency sub-carrier in its frequency resource.
Now, the information of the need transmission of other users can take the residual frequency resource between active user's frequency pilot sign broach, the pilot tone frequency division multiplexing with the user, to be transmitted.When wherein inserting other users information, user profile can be hooked to compartment of terrain and inserted in the residual frequency resource, uneven can also be inserted.The method uniformly inserted can still use the forming method of above-mentioned comb spectrum, simply using the comb spectrum frequency offset amount different from user's pilot tone.In addition, the information of other users is inserted in the residual frequency resource in which can be spaced multiple transmissions/reception data processing unit, as long as disclosure satisfy that the demand of transmitting subscriber information.The information of these other users includes but is not limited to other users institute
The information measured to up channel situation needed, the metrical information includes but is not limited to information, synchronizing information and adaptive pilot selection information of up frequency domain dispatching etc..Information wherein for up frequency domain dispatching may include subcarrier or subband metrical information for frequency domain dispatching, for subcarrier feedback information of frequency domain dispatching etc. again.
In addition, some ascending control informations of the user itself also can be between frequency pilot sign broach residual frequency transmitted over resources.The control information of these users includes but is not limited to the control information of the downlink transfer correlation of the user feedback, and the control information can be the related confirmation of down mixing repeat requests.In addition, subscriber control information can also be user equipment metrical information, channel quality indication (CQI) information (Channel Quality Indicator, cylinder claims CQI) etc..
Wherein, in addition to aforesaid way, in the present invention, by the method for the processing in frequency domain frequency pilot sign can also be caused to form pectination spectral property on frequency domain, specific steps include：
One pilot frequency sequence of multiple pilot value formation；
Pilot frequency sequence is carried out to the FFT conversions of the M points of time-frequency；
By on the sequence mapping on frequency domain to N point subcarriers, wherein,（N is more than M;) IFFT is changed when the frequency domain sequence of N points is entered into line frequency, the frequency pilot sign is sent in time domain.In receiving terminal, signal demultiplexing will be first received, the data and pilot tone of same user are obtained.Because the minimum interval between two frequency pilot sign teeth on frequency domain is less than the coherence bandwidth of channel, so the channel response of other positions can be obtained by interpolation method.Therefore, after demultiplexing obtains pilot tone, the channel parameter of its frequency pilot sign current sub-carrier can first be estimated, then pass through the channel parameter of all subcarriers where interpolation method estimated data.Meanwhile, by the separation to pilot tone comb spectrum, recover the other information of multiplexing.
If what is be multiplexed is the control information of the user, these information can be demodulated with the pilot tone with its frequency division multiplexing, or be demodulated using other noncoherent demodulation methods.
If what is be multiplexed is the information of other users, these information generally need not all be demodulated（For example do the information of channel situation measurement）Or can be demodulated using other non-coherent demodulation methods.
This embodiment of the present invention reduces the resource of pilot tone occupancy in the case where fully ensuring that channel estimating performance.By taking Xi System in 3GPP TS25.814 as an example, compare 1,1/2,1/4,1/8 several situations that frequency pilot sign is taken to total band resource on frequency domain respectively, comparative result is as shown in Fig. 7, when showing to be less than channel coherence bandwidth at the interval of fooled two frequency pilot signs of frequency domain（First three situation）, it is affected very small using the channel response performance of Interpolate estimation other subcarriers.
Meanwhile, the above-mentioned situation for equidistantly interleaving pilot tone in frequency domain also ensures that the pilot tone and data of the user has preferable peak-to-average force ratio characteristic.The information of other users equidistantly interleaving it is also ensured that the preferable peak-to-average force ratio characteristic of other users in remaining frequency domain resource.Mode for being multiplexed the user other control information of oneself in pilot tone residual frequency resource, also can ensure that peak-to-average force ratio is smaller using other measures simultaneously.
Embodiment 2, in this embodiment, user data and multiple frequency pilot signs time division multiplexing in same TTI：
When user data in same TTI and multiple frequency pilot signs are time-multiplexed, in view of the guarantee of the channel estimating performance under some special applications scenes, except can be in the way of described in embodiment 1, for the respective corresponding frequency pilot sign of different user data symbol, formed respectively on the frequency band that the different user data symbol is each accounted for outside respective pectination language, aforesaid operations only can also be carried out to which part frequency pilot sign, other frequency pilot signs then take the whole frequency resource in its time resource.So, fifty-fifty, the frequency resource that pilot tone takes is still sparse compared with the frequency resource that data take, it is possible to use the information or the control information of the user of the residual frequency resource transmission other users formed between the frequency pilot sign broach of this portion of pilot.For example shown in Fig. 8, the pilot tone formation comb spectrum of a pilot tone, wherein head is inserted respectively in TTI head and tail.Such case can be used for channel circumstance poor, in the case that the coherence bandwidth of frequency is smaller.Certainly, for each frequency pilot sign, embodiment can also be used
Mode described in 1 generates pectination Pass, so as to form surplus resources, has no effect on the realization of the present invention.
In the case where up multiple user data carry out frequency division multiplexing by frequency band, the above method can also be used, make the plurality of user each frequency pilot sign in its respective frequency resource（Frequency band）The comb spectrum pilot tone of upper formation is alignd in time, the residual frequency resource that these users are each formed between frequency pilot sign broach can be used for transmitting respective control information or the information of other different users, can also unified allocation of resources, the information for transmitting same other users.In addition, the bandwidth of the frequency band of the frequency resource of the plurality of user occupancy can be with identical, can also be different.
Embodiment 3:In embodiment described above, be for different user data symbol each corresponding to frequency pilot sign, form respective comb spectrum respectively on the frequency band that different user data symbol is each accounted for, in the embodiment 3, for the comb spectrum of the extension of frequency pilot sign formation one corresponding to a user data symbol, the comb spectrum extends to other frequency bands in frequency.The principle of the extension is：During comb spectrum is formed, broach shared by the surplus resources of the user A in different user on whole system frequency band with shared by least another user B frequency pilot sign in different user
^ ^ teeth overlap so that, the user A surplus resources of itself can be used for the control information for transmitting user B, based on These characteristics, on the whole, it is believed that be that user B pectination is said and extends to other frequency bands.
For example, Fig. 8 example can expand to situation as shown in Figure 9, the sparse pilot tone of user can extend to other frequency bands in frequency, for carrying out the channel measurement of other frequency bands.Now, the resource of other shared frequency bands, is the residual frequency resource discharged in the pilot time of other users.This extension can be composed by the unified ^ ^ shapes of longer block length and realized.Specifically, i.e., at least two pilot tones are inserted in the different time position in the TTI, wherein a pilot tone is over the entire frequency band（Subband including other users）Shape spectrum is formed, and other pilot tones then take the frequency resource shared by the user data in subband.In Fig. 9, a pilot tone is inserted respectively in TTI head and tail, the pilot tone on wherein head forms broader comb spectrum, and data division carries out the channel estimation of data block with the frequency resource of frequency band, and the frequency resource of data division different frequency bands carries out channel quality measurement to frequency band.
Wherein, in the embodiment 3, the mode described in the present embodiment can certainly be respectively adopted for each frequency pilot sign and generate the comb spectrum of extension, so as to form surplus resources；Or, other partly or entirely pilot tones also can generate pectination language by the way of such as embodiment 1 and/or embodiment 2, so as to produce remaining frequency resource, have no effect on the realization of the present invention.
In addition, for other pilot tones in addition to pectination language is formed, if take the realization that the frequency resource shared by the user data in subband also has no effect on the present invention.
More generally, for the user data in same TTI and a time-multiplexed situation of frequency pilot sign, Fig. 6 example can expand to analogue as shown in Figure 9, that is, when user data and a frequency pilot sign in same TTI are time-multiplexed, the comb spectrum of extension can also be generated using aforesaid way, so as to realize the embodiment of the present invention.
In addition, multiple different users lead breath in , Bu Sudden 403 for the method for above-mentioned time-frequency resource allocating, the pilot tone in the information and above-mentioned another user itself Bu Sudden 402 is realized with unified comb spectrum.
It is corresponding with the above method, a kind of distributor of uplink time/frequency source is additionally provided in the embodiment of the present invention, referring to Figure 10, the device at least includes multiplexing and distribute module, the module is used to realize multiplexing as above described in method and frequency resource allocation function, and being negligent of corresponding data symbol frequency shared in its time resource with the frequency resource for causing frequency pilot sign shared in its time resource provides
Source.Because the multiplexing and distribution function that the module is realized are consistent with the multiplexing introduced in the above method and distribution method, therefore description is not repeated herein.
Referring to Figure 10, in a preferred embodiment, the distributor of the uplink time/frequency source still further comprises surplus resources distribute module, is realized using the module：Residual frequency resource allocation outside frequency resource shared by frequency pilot sign in the time resource of frequency pilot sign is used to transmit the information of other users or the control information of the user.The surplus resources distribution function that the module is realized with the distribution method of the surplus resources of by the agency of is consistent in the above method, to save space, be no longer discussed in detail herein.
The distribution method of uplink time/frequency source of the present invention makes pilot tone take the frequency resource more sparse than data division, realizes pilot tone resource distribution sparse on frequency domain, and using leading information processed in the time resource of frequency pilot sign.The present invention suitable for any system resource can by when, frequency division multiplexing system.
Claims (1)
- Profit will1st, a kind of distribution method of uplink time/frequency source, it is characterised in that this method includes：Using time-multiplexed mode users multiplexing frequency pilot sign and its data symbol, and in the multiplex process, frequency resource shared by distributing user frequency pilot sign so that frequency pilot sign frequency resource shared in its time resource is negligent of corresponding data symbol frequency resource shared in its time resource.2nd, according to the method described in claim 1, it is characterised in that the control information of breath or the user in the time resource of frequency pilot sign.3rd, according to the method described in claim 1, it is characterised in that:Frequency sub-carrier in resource.4th, method according to claim 3, it is characterised in that：The frequency pilot sign sent by handling pilot frequency sequence to obtain according to the distribution method, so as to have pectination spectral property on frequency domain, obtains one group of broach.5th, method according to claim 4, it is characterised in that：For the respective corresponding frequency pilot sign of different user data symbol, on the frequency band that different user data symbol is each accounted for, the frequency pilot sign each sent is formed by handling each self-corresponding pilot frequency sequence of each user, the frequency pilot sign has respective pectination spectral property, obtain the respective Yi Group broach of each user, the frequency resource shared by the data symbol be each user each data symbol each shared by frequency band frequency resource.6th, method according to claim 4, it is characterised in thatFor the respective corresponding frequency pilot sign of different user data symbol, on the frequency band that different user data symbol is each accounted for, the frequency pilot sign each sent is formed by handling each self-corresponding pilot frequency sequence of each user, the frequency pilot sign has respective pectination spectral property, obtain the respective one group of broach of each user, the frequency resource shared by the data symbol be each user each data symbol each shared by frequency band frequency resource；Wherein, the residual frequency resource of any one user A in different user any extension broach shared on whole system frequency band is overlapped with the broach shared by least another user's B frequency pilot sign in different user. 7th, method according to claim 6, it is characterised in thatUser B other control information are transmitted on the surplus resources of the user A.8th, the method according to claim 2 or 5, it is characterised in that the information of another user of identical.9th, the method according to any one of claim 36, characterized in that, the user data symbol is time-multiplexed with least two frequency pilot signs so that all frequency pilot signs have described adverbial modifier's characteristic, or so that portion of pilot symbol has the pectination spectral property.10th, method according to claim 2, it is characterised in that the residual frequency resource allocation is used to transmit being implemented as the information of other users or the control information of the user：The information of other users or the control information of the user are evenly spaced apart to take the frequency sub-carrier in the residual frequency resource.11st, method according to claim 2, it is characterised in that the residual frequency resource allocation is used to transmit being implemented as the information of other users or the control information of the user：The information of other users or the control information of the user sent by interval at least two/receive data processing unit in the way of insert in the residual frequency resource.12nd, method according to claim 2, it is characterised in that the information of the other users includes the information measured to up channel situation needed for other users.13rd, distribution method according to claim 10, characterized in that, the information measured to up channel situation needed for the other users includes at least one of information, synchronizing information or adaptive pilot selection information of up frequency domain dispatching.14th, distribution method according to claim 13, it is characterised in that the information for up frequency domain dispatching is at least including the subcarrier or subband metrical information for frequency domain dispatching, for one of subcarrier feedback information of frequency domain dispatching.15th, distribution method according to claim 2, it is characterised in that the control information of the user includes at least one of user equipment metrical information, channel quality indication (CQI) information, control information of downlink transfer correlation of user feedback.16th, according to the method described in claim 1, it is characterised in that Frequency sub-carrier in rate resource.17th, a kind of distributor of uplink time/frequency source, it is characterised in that the device at least includes multiplexing and distribute module, the module is used for：Using time-multiplexed mode users multiplexing frequency pilot sign and its data symbol, and in the multiplex process, frequency resource shared by distributing user frequency pilot sign so that frequency pilot sign frequency resource shared in its time resource is negligent of corresponding data symbol frequency resource shared in its time resource.18th, device according to claim 17, it is characterised in that the frequency sub-carrier in the frequency resource of the multiplexing and distribute module.19th, device according to claim 17, it is characterised in that the multiplexing and distribute module are used for：The frequency pilot sign sent by handling pilot frequency sequence to obtain according to the distribution method, so as to have pectination spectral property on frequency domain, obtains one group of broach.20th, device according to claim 19, it is characterised in that the multiplexing and distribute module are used for：For the respective corresponding frequency pilot sign of different user data symbol, on the frequency band that different user data symbol is each accounted for, the frequency pilot sign each sent is formed by handling each self-corresponding pilot frequency sequence of each user, the frequency pilot sign has respective pectination spectral property, obtain the respective one group of broach of each user, the frequency resource shared by the data symbol be each user each data symbol each shared by frequency band frequency resource.21st, device according to claim 19, it is characterised in that the multiplexing and distribute module are used for：For the respective corresponding frequency pilot sign of different user data symbol, on the frequency band that different user data symbol is each accounted for, the frequency pilot sign each sent is formed by handling each self-corresponding pilot frequency sequence of each user, the frequency pilot sign has respective pectination spectral property, obtain the respective one group of broach of each user, the frequency resource shared by the data symbol be each user each data symbol each shared by frequency band frequency resource；Wherein, the residual frequency resource of any one user A in different user any extension broach shared on whole system frequency band and the comb at least shared by another user's B frequency pilot sign in different user Tooth is overlapped.22nd, device according to claim 17, it is characterised in that the device further comprises surplus resources distribute module, the module is used for：Residual frequency resource allocation outside frequency resource shared by frequency pilot sign in the time resource of frequency pilot sign is used to transmit the information of other users or the control information of the user.23rd, device according to claim 22, it is characterised in that the surplus resources distribute module is used for：The information of defeated another user of identical.24th, device according to claim 22, it is characterised in that the surplus resources distribute module is used for：The information of other users or the control information of the user are hooked into the frequency sub-carrier in the compartment of terrain occupancy residual frequency resource.25th, device according to claim 22, it is characterised in that the surplus resources distribute module is used for：The information of other users or the control information of the user are sent by interval at least two/receive data processing unit in the way of insert in the residual frequency resource.26th, device according to claim 17, it is characterised in that the multiplexing and distribute module are used for：The frequency sub-carrier in frequency resource shared by page symbol L data symbols.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200510036883.2 | 2005-08-28 | ||
| CNA2005100368832A CN1921360A (en) | 2005-08-28 | 2005-08-28 | Method for distributing up time-frequency resource |
| PCT/CN2006/002206 WO2007025466A1 (en) | 2005-08-28 | 2006-08-28 | A method for distributing up link time frequency resource and a device thereof |
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| Publication Number | Publication Date |
|---|---|
| CN101199147A true CN101199147A (en) | 2008-06-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2006800213923A Pending CN101199147A (en) | 2005-08-28 | 2006-08-28 | Method and device for distributing up running time-frequency resource |
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| CN (1) | CN101199147A (en) |
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- 2006-08-28 CN CNA2006800213923A patent/CN101199147A/en active Pending
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