CN101632242A - Apparatus and method for allocating resources in a single carrier-frequency division multiple access system - Google Patents
Apparatus and method for allocating resources in a single carrier-frequency division multiple access system Download PDFInfo
- Publication number
- CN101632242A CN101632242A CN200880007805A CN200880007805A CN101632242A CN 101632242 A CN101632242 A CN 101632242A CN 200880007805 A CN200880007805 A CN 200880007805A CN 200880007805 A CN200880007805 A CN 200880007805A CN 101632242 A CN101632242 A CN 101632242A
- Authority
- CN
- China
- Prior art keywords
- mirror image
- resource unit
- sub
- district
- close
- 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.)
- Granted
Links
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/69—Spread spectrum techniques
- H04B1/713—Spread spectrum techniques using frequency hopping
- H04B1/7143—Arrangements for generation of hop patterns
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
- H04W72/0446—Resources in time domain, e.g. slots or frames
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
- H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
- H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/69—Spread spectrum techniques
- H04B1/713—Spread spectrum techniques using frequency hopping
- H04B1/715—Interference-related aspects
- H04B2001/7154—Interference-related aspects with means for preventing interference
Abstract
An apparatus and method for allocating resources in an Single Carrier-Frequency Division Multiple Access (SC-FDMA) communication system are provided, in which a Node B determines on a cell basis whether to turn or off inter-subband hopping and whether to turn on or off mirroring for a resource unit for the UE on a frequency axis along which at least two subbands are defined, at set hopping times, selects a resource unit by selectively performing inter-subband hopping and mirroring on the resource unit for the UE according to the determination, and allocates the selected resource unit to the UE.
Description
Technical field
The present invention relates to a kind of method and apparatus that is used for distributing effectively the control channel transfer resource at single-carrier frequency division multiple access (SC-FDMA) wireless communication system, when in same transmission period, sending Packet Data Channel and control channel.
Background technology
Fig. 1 shows as the transmitter in centralized FDMA (LFDMA) system of a class SC-FDMA system.Though this transmitter is configured to make and uses discrete Fourier transform (DFT) (DFT) and contrary fast fourier transform (IFFT) in Fig. 1, any other configuration also is applicable to this transmitter.
With reference to Fig. 1, use DFT and IFFT to be convenient to utilize minimum hardware complexity to change the LFDMA system parameters.Consider OFDM (OFDM) and the difference of SC-FDMA on transmitter configuration, the LFDMA transmitter also comprises DFT precoder 101 at the front end of IFFT processor 102, is used for the multi-carrier transmission of OFDM transmitter.In Fig. 1, send (TX) modulated symbol 103 and offered DFT precoder 101 by piece.DFT output is mapped to the IFFT input in the frequency range that comprises continuous subcarrier.The effect of mapper 104 is to be mapped to actual frequency band with sending modulated symbol.
Fig. 2 shows the transfer of data from described subscriber equipment in the resource that is assigned with of subscriber equipment (UE) in traditional SC-FDMA system.
With reference to Fig. 2, limit a Resource Unit (RU) 201 by the one or more subcarriers on the frequency and temporal one or more SC-FDMA code element.For transfer of data, divide two RU that are equipped with the oblique line indication to UE1, and divide 3 RU that are equipped with the round dot indication to UE2.
Wherein the RU of UE1 and UE2 transmission data fixes in time, and is continuous in set frequency band.The scheme of this resource allocation or transfer of data is optionally distributed the frequency resource that good channel condition is provided to each UE, thereby utilizes limited system resource maximum system performance.For example, compare with the piece in other frequency bands, the piece with oblique line provides better characteristics of radio channels to UE1, and compares with the piece in other frequency bands, and the piece of band round dot provides better characteristics of radio channels to UE2.Option ground distributes the resource with better channel response to be known as frequency selectivity resource allocation or frequency selective scheduling.Aforesaid uplink data transmission from UE to the Node B is the same with utilizing, and frequency selective scheduling also is applied to the downlink transmission from the Node B to UE.On down link, represent respectively that with the RU of oblique line and round dot mark Node B wherein sends the resource of data to UE1 and UE2.
Yet frequency selective scheduling is always ineffective.Thereby for the fast-changing UE of fast moving and experience channel status, frequency selective scheduling also is not easy.More particularly, though the node B scheduling device has distributed frequency band in the good relatively channel status in preset time to UE, but when UE from the Node B receiving resource allocation information and when planning the resource of being distributed, to send data, UE is arranged in the significantly channel circumstance of change.Therefore, selected frequency band can not be guaranteed good relatively channel status for UE.
Even be used for service transfer of data, that be similar to the voice (VoIP) based on the internet continuously in the more a spot of frequency resource of needs, if UE reports its channel status about frequency selective scheduling, then signaling consumption also may be sizable.In this case, it is more effective using frequency hopping (frequency hopping) rather than frequency selective scheduling.
Fig. 3 shows the frequency hopping in the traditional F DMA system.
With reference to Fig. 3, distribute to the frequency resource that UE is used for transfer of data and change according to the time.Frequency hopping has makes the effect of channel quality and interference randomization (randomize) between data transfer period.Because data are sent out in time dependent frequency resource, so at each time point, data have the different characteristics of channel and disturbed by the different UEs in the neighbor cell, thereby have obtained diversity.
Yet when if RU jumps with independent pattern (independentpattern) in SC-FDMA system as shown in Figure 3, frequency hopping is infeasible.For example, if RU 301 and 302 is assigned to different UE, then it doesn't matter.Yet, if RU 301 and 302 the two all be assigned to single UE, they jump to the position of RU 303 and 304 by frequency hopping at next transmission point.Because RU 303 and 304 is discontinuous, so UE can not send data in these two RU.
Under this contextual situation, in order to obtain the frequency diversity in the SC-FDMA system, open mirror image (mirroring) is to replace frequency hopping, as shown in Figure 4.
Traditionally, RU moves symmetrically with respect to the centre frequency of the whole frequency band that can be used for transfer of data.For example, in the A of sub-district, in next transmission time, RU 401 is mirrored onto RU 403, and RU402 is mirrored onto RU 404.In the same way, in the B of sub-district, in next transmission time, RU 405 is mirrored onto RU 406.Mirror image makes continuous RU to jump continuously, thereby satisfies the single carrier performance during the frequency hopping.
Shortcoming with frequency hopping of frequency diversity is: because except come with respect to centre frequency the mirror image can't mobile RU, so the jump pattern is fixed.This means on a certain degree to obtain frequency diversity, but be difficult to obtain interference randomization.When the RU that jumps to relative position returned its origin-location by mirror image, only a kind of RU jump pattern can be used.Therefore, even when having a plurality of sub-district, each sub-district can not have different patterns.
With reference to Fig. 4, in a time period,, and be assigned to UE among the B of sub-district with the RU 405 of monocline wire tag if be assigned to UE among the A of sub-district with the RU 402 of round dot mark, then because in the mirror image scheme, only there is a kind of frequency hop pattern to use, so the UE among UE among the A of sub-district and the sub-district B disturbs.If the UE among UE among the B of sub-district and the sub-district A is contiguous, then cause remarkable interference to the UE among the A of sub-district.As a result, utilization is worsened by the quality of reception with the UE of the sub-district A of the RU of round dot mark.
Summary of the invention
One aspect of the present invention solves described at least problem and/or shortcoming, and following at least advantage is provided.Therefore, one aspect of the present invention provides a kind of being used for when adopting mirror image with the acquisition frequency diversity, and Resources allocation is with the method and apparatus of the interference between the randomization neighbor cell.
Transmission/receiving equipment that one aspect of the present invention provides a kind of method and used this method is used for according to determining to open or cut out mirror image at each hopping time for the different mirror image opening/closing pattern of each sub-district.
Transmission/receiving equipment that one aspect of the present invention provides a kind of method and used this method, be used in the time can supporting frequency hopping, according to determining to open or close frequency hopping and mirror image at each hopping time for the different patterns of each sub-district with increase frequency diversity effect.
According to the present invention, providing a kind of is used in the SC-FDMA communication system to the UE method of allocating resources, wherein: based on the sub-district, determine on frequency axis, to open or close the intersubband jump and open or close mirror image at each hopping time, along at least two subbands of described frequency axis definition for the Resource Unit that is used for UE; And by determining optionally to carry out according to described that intersubband jumps and mirror image is selected Resource Unit for the Resource Unit of the described UE of being used for, and with described resource unit allocation to described UE.
According to the present invention, provide a kind of in the SC-FDMA system by from the Node B method of allocating resources, wherein: at each hopping time, determine on frequency axis, to open or close the intersubband jump and open or close mirror image, along at least two subbands of described frequency axis definition for the Resource Unit that is used for UE; And by determining optionally to carry out according to described that intersubband jumps and mirror image is selected Resource Unit for the Resource Unit that is used for UE, and in selected Resource Unit to described Node B transmission data.
According to the present invention, providing a kind of is used at the equipment of SC-FDMA communication system to the Node B of UE Resources allocation, wherein: scheduler is based on the sub-district, determine on frequency axis, to open or close the intersubband jump and open or close mirror image at each hopping time for the Resource Unit that is used for UE, along at least two subbands of described frequency axis definition, and by determining to carry out optionally that intersubband jumps and mirror image selects to distribute to the Resource Unit of described UE for the Resource Unit of the described UE of being used for according to described; The data that mapper receives from described UE according to the information separated about selected Resource Unit that receives from described scheduler; And the data after the decoder decode separation.
According to the present invention, a kind of equipment that sends the UE of data in the SC-FDMA communication system to Node B is provided, wherein: Data Transmission Control Unit is based on the sub-district, determine on frequency axis, to open or close the intersubband jump and open or close mirror image at each hopping time, along at least two subbands of described frequency axis definition for the Resource Unit that is used for UE; And mapper with data map to by determining optionally to carry out the Resource Unit that intersubband jump and mirror image are selected for the Resource Unit of the described UE of being used for according to described, and the data after will shining upon send to described Node B.
Description of drawings
By the specific descriptions of carrying out below in conjunction with accompanying drawing, above-mentioned and other purposes of some one exemplary embodiment of the present invention, feature and advantage will become more obvious, wherein:
Fig. 1 shows the transmitter in the traditional F DMA system;
Fig. 2 shows in traditional SC-FDMA system in the resource that it distributed the transfer of data from UE;
Fig. 3 shows the frequency hopping in the traditional F DMA system;
Fig. 4 shows traditional mirror image;
Fig. 5 A and Fig. 5 B show the method according to the first embodiment of the present invention;
Fig. 6 shows the operation that is used at UE or Node B selection RU according to of the present invention;
Fig. 7 shows according to UE of the present invention;
Fig. 8 shows according to Node B of the present invention;
Fig. 9 shows according to channel architecture of the present invention;
Figure 10 A to Figure 10 D shows the method according to second embodiment of the invention;
Figure 11 shows the operation that is used for selecting in UE or Node B RU according to second embodiment of the invention;
Figure 12 shows the channel architecture according to third embodiment of the invention;
Figure 13 shows according to the mixed automatic retransmission request (HARQ) of not considering of third embodiment of the invention and carries out the method for mirror image;
Figure 14 shows the method that is used for each HARQ process is carried out mirror image according to third embodiment of the invention; And
Figure 15 illustrates the method that is used for each HARQ process is carried out mirror image according to fourth embodiment of the invention.
Embodiment
Be provided in this explanation definition such as the theme of concrete structure and element to help complete understanding the preferred embodiments of the present invention.Therefore, those of ordinary skills will be appreciated that, under the situation that does not deviate from scope and spirit of the present invention, can make various changes and modification to the embodiments described herein.In addition, purpose has for clarity and conciseness been omitted the description to known function and structure.
The preferred embodiments of the present invention provide a kind of method, be used in each scheduled time, when in different RU, sending data, improve interference randomization between the sub-district, to obtain frequency diversity in the single carrier performance in satisfying the uplink SC-FDMA system by common frequency hopping or mirror image scheme.
In order to understand the present invention better, following definition of data channel.
Frequency scheduling (FS) band: by one group of RU of frequency selective scheduling distribution.They are continuous or disperse.
Frequency hopping (FH) band: for obtaining one group of RU that frequency diversity sends.These RU can't help frequency selective scheduling and distribute.They are continuous or disperse.A FH band can comprise one or more sub-FH bands.
Mirror image: RU with respect to the center RU in center subcarrier or the sub-FH band from left to right and from right to left symmetry jump.
Hopping time: the RU that distributed jumped or by the time of mirror image.Depend on how to adopt and jump or mirror image, RU has the following time period.
1. when jumping between jump and subframe in supporting subframe, this time period is a time slot.
2. when only supporting to jump between subframe, this time period is a subframe.
Fig. 5 A and Fig. 5 B illustrate the method according to the first embodiment of the present invention.Fig. 5 A illustrates the timeslot-based mirror image of not considering HARQ, and Fig. 5 B illustrates the independently mirror image that is used for each HARQ process.
With reference to Fig. 5 A, there is sub-district 501 and 502 (sub-district A and sub-district B).When jumping in the hypothesis subframe, the hopping time section is a time slot.Based on time slot, in the A of sub-district according to opening (on), open, open, close (off), opening, close, close, close ... pattern 503 carry out mirror image at each hopping time, in the B of sub-district according to opening, close, open, open, close, close, open, opening ... pattern 512 carry out mirror image at each hopping time.
In the A of sub-district, RU 504 is assigned to UE A at hopping time k.Because is to open at next hopping time (k+1) for the mirror image of UEA, so UEA uses RU 505 in time slot (k+1).At hopping time (k+3) mirror image for closing, thereby UE A sends data in the RU 506 identical with the RU that uses in the last time slot (k+2) in time slot (k+3).Similarly, because at hopping time (k+6) mirror image for closing, so UE A sends data in the RU507 identical with the RU that uses in the last time slot (k+5) in time slot (k+6).
In an identical manner, in the B of sub-district, RU 508 is assigned to UE B in time slot k.Because at next hopping time (k+1) mirror image for closing, so UE B uses RU 509 in time slot (k+1).At hopping time (k+3), mirror image is for opening, thereby UE B uses RU 510 in time slot (k+3).Similarly, because at hopping time (k+6) mirror image for opening, so UE B uses RU 511 in time slot (k+6).
In each sub-district, mirror image is opened or is closed at each hopping time according to different patterns.Therefore, though the UE in the different districts may use same RU at given time slot,, in next time slot, use the possibility of same RU so reduced them owing to used different mirror image opening/closing patterns.For example, in time slot k, RU 504 and 508 is assigned to UE A among the A of sub-district and the UE B among the B of sub-district respectively.If UE B and sub-district A are contiguous, then UE A is subjected to the remarkable interference of UE B probably.Yet, because UE A opens mirror image at next hopping time (k+1), so UE A sends data in RU 505 in time slot (k+1), and mirror image is closed for UE B, so UE B sends data in the RU 509 identical with the RU that uses in the last time slot.Thereby.UE A uses different RU with UE B in time slot (k+1).
Be that in mirror method shown in Fig. 5 B and similar part different sub-districts uses different mirror image opening/closing patterns at the mirror method shown in Fig. 5 A, and the difference of the former with the latter is: in Fig. 5 B, RU comes mirror image with respect to the RU in the same HARQ process, rather than comes mirror image with respect to the RU in the last time slot as Fig. 5 A.
In Fig. 5 B, mirror image is opened the UE of hopping time k in sub-district 513 (sub-district A).Thereby UE uses the RU 517 that will use in the last time slot (k-RTT+1) of same HARQ process to carry out the RU 518 that mirror image obtains, rather than uses the RU that will use in last time slot (k-1) to carry out the RU that mirror image obtains.RTT represents two-way time (Round Trip Time), is defined as when being to negate initial transmission time when confirming (NACK) and being ACK about the response of retransmission data about the response that sends data.Therefore, the data that send in RU 518 and 519 are re-transmitted version of the data of transmission in RU 516 and 517, perhaps belong to the same HARQ process with the data that send in RU 516 and 517.Be convenient to define wherein for initialization and the mirror image opening/closing pattern of retransmitting the different RU of use based on the mirror image of HARQ RTT.Although have this advantage, management has increased complexity for the different mirror image opening/closing pattern of each HARQ process.In this context, following definite mirror image opening/closing pattern.
(1) according to a sequence at each hopping time opening/closing mirror image.Need this sequence to indicate and open or close mirror image, and do not indicate position about the RU that jumps.Therefore, this sequence comprises two values.Usually, binary sequence comprises 0 and 1.
(2) generate a plurality of sequences and distribute to the sub-district,, thereby minimize RU conflict between them so that different patterns is applied to neighbor cell at least.For example, be assigned to each sub-district such as one group of orthogonal code of Walsh (Walsh) yard, and each sub-district is determined the mirror image opening/closing at each hopping time according to code value 0 or 1.Replacedly, the mirror image opening/closing can be determined according to the pseudo noise with the seed that is exclusively used in this sub-district (PN) sequence in each sub-district.Compare with preceding a kind of method, a kind of method in back has increased the randomization between the sub-district, thereby has minimized the phenomenon that RU jumps according to same mode in different districts.To in context, the present invention be described below based on the method for PN sequence.
In order to generate the PN sequence, use the cell-specific seed, and obtain same PN sequence, the UE in the same sub-district should receive identical timing information.Timing information can be represented as absolute time and poor between the current time, perhaps can be represented as frame count common time such as System Frame Number (SFN).
Fig. 6 illustrates the operation that is used for determining at UE the mirror image opening/closing according to the first embodiment of the present invention.In order to receive data from UE, Node B can be carried out identical operations.
With reference to Fig. 6, when node B scheduling was used for the RU of UE, UE generated the PN sequential value in step 601, and checked this PN sequential value in step 602.If the PN sequential value is 0, then UE determines to close mirror image in step 604.If the PN sequential value is 1, then UE determines to open mirror image in step 603.In step 605, UE is identified for the RU position of next transfer of data according to the mirror image opening/closing of determining in step 603 or 604.UE sends data in determined RU in step 606.
Mirror image causes jumping with respect to the RU of the symmetry at the center of whole FH band.Can detect the new RU that in next time slot, uses based on information about the RU that in last time slot, uses.Mirror image is represented as equation (1):
H(r)＝N
FH-r
……(1)
Wherein, r represents the RU as the mirror image basis.The mirror image basis is RU that uses in last time slot in Fig. 5 A and the RU that uses in the last time slot of same HARQ process in Fig. 5 B.H (r) is illustrated in the time slot RU that mirror image obtains is carried out on the mirror image basis.N
FHBe illustrated in the sum of the RU in the FH band.
Fig. 7 illustrates the UE according to the first embodiment of the present invention.
With reference to Fig. 7, data symbols maker 703 generates the data symbols that will send.Determine the data volume that in each Transmission Time Interval (TTI), can send by node B scheduling.String also (S/P) transducer 704 converts the sequence of data symbols to the paralleled code element sequence.DFT processor 705 converts the paralleled code element sequence to frequency-region signal, to be used for the SC-FDMA transmission.The DFT size equals from the quantity of the data symbols of data symbols maker 703 generations.Mapper 706 is mapped to frequency-region signal the frequency resource of distributing to UE based on the RU information that receives from Data Transmission Control Unit 702.Data Transmission Control Unit 702 generates RU information based on UR information of being dispatched and mirror image opening/closing information.Each sub-district has different mirror image opening/closing patterns according to the PN sequence.Therefore, need PN sequence generator 701.Use the output of PN sequence generator 701 to decide the RU that will use according to preceding method.Conversion of signals after IFFT processor 707 will shine upon is a time-domain signal.And string (P/S) transducer 708 is converted to time-domain signal the serial signal that is used to transmit.
Fig. 8 illustrates the Node B according to the first embodiment of the present invention.
With reference to Fig. 8, S/P transducer 807 is a parallel signal with the conversion of signals that is received, and fft processor 806 is converted to frequency signal with parallel signal.Go mapper 805 based on the RU assignment information of determining by uplink scheduler 802, go mapping for the frequency-region signal of different UEs about each UE.Uplink scheduler 802 is used the RU information of being dispatched and is generated RU information about each UE based on the mirror image opening/closing information of mirror image opening/closing pattern.Because each sub-district has different mirror image opening/closing patterns, so need PN sequence generator 801.Decide the RU that will extract data according to preceding method based on the output of PN sequence generator 801 from it.IDFT processor 804 is converted to time-domain signal with the mapping signal that goes of the UE (being UE 1) of expectation.P/S transducer 808 is converted to serial signal with time-domain signal.The data that data symbol decoder 803 demodulation receive from UE.
Sub-FH interband jump opening/closing and mirror image opening/closing are combined, and by selecting a combination to be identified for the position of the RU of transfer of data, so that each sub-district has different patterns.That is to say that the resource of whole system frequency band is divided into FH band and FS band, and be disclosed in the channel architecture that enough frequency agility gains is provided in the FH band and in the FS band, obtains enough available band.
Fig. 9 illustrates channel architecture according to a second embodiment of the present invention.
With reference to Fig. 9, define sub-FH in the both sides of whole frequency band and be with 901 and 903, and sub-FH is defined as FS with the centre frequency band between 901 and 903 and is with 902.Use FS can jump to sub-FH and be with 901 and 903, thereby obtain enough frequency agility gains with 902 UE.Because FS is continuous distributing with the maximization cline frequency with 902 frequency, so can improve maximum data rate.
Next, will make description: consider the single carrier performance in the disclosed channel architecture, be used in each FH band, carrying out sub-FH interband jump and mirror image, make it possible to carry out variable RU simultaneously and distribute to obtain enough frequency diversity gain to following method.As among first embodiment, jump and the opening/closing mirror image at the sub-FH interband of each hopping time opening/closing according to the cell-specific pattern.
As shown in table 1, obtain four kinds of combinations of sub-FH interband jump opening/closing and mirror image opening/closing.At each hopping time, select a kind of combination, and use selected combination each sub-district to be used and jump and/or mirror image according to different patterns.
Table 1
| Combination | FH is with jump | Mirror image |
| ??1 | Open | Open |
| ??2 | Close | Close |
| ??3 | Close | Open |
| ??4 | Open | Close |
Figure 10 A to Figure 10 D illustrates method according to a second embodiment of the present invention.
Figure 10 A and Figure 10 B are based on the hypothesis of supporting to jump in the TTI in sub-district 1001 and 1007 (sub-district A and sub-district B).Therefore, the hopping time section is a time slot.
With reference to Figure 10 A and Figure 10 B, select combination for sub-district A according to the order of 3-1-4-3-2-1-2-3, and select combination according to the order of 3-4-2-1-3-2-1-4 for sub-district B.
Though use RU 1002 at hopping time k sub-district A, it jumps by sub-FH interband and mirror image selection RU 1005 according to combination 1 at hopping time (k+1).At next hopping time (k+2), sub-district A only carries out sub-FH interband jump and does not carry out mirror image according to combination 4, thereby selects RU 1003.Because combination 2 is set, so sub-district A selects RU 1004 and do not carry out sub-FH interband and jump and mirror image for hopping time (k+4).
At hopping time k, sub-district B selects to be used for the same RU 1008 of sub-district A.At hopping time (k+1), with jump by sub-FH interband according to combination 1 and mirror image the two select the sub-district A of RU 1005 to compare, sub-district B only jumps by sub-FH interband according to combination 4 and not by mirror image selection RU 1009.Though other UE in time slot (k+1) in the B of sub-district may use the RU identical with RU 1005, each time from the interference of different UEs rather than with better interference randomization gain is provided conflicting of same UE.
In Figure 10 C and Figure 10 D, carry out sub-FH interband jump and mirror image for the RU of the last data transmission that is used for same HARQ process rather than at the RU that last hopping time uses.
With reference to Figure 10 C, jump rather than the sub-FH interband of the RU that uses at hopping time (k-1) jumps and selects RU 1013 at the sub-FH interband of the RU 1014 of the last data transmission of hopping time k by being used for same HARQ process.For hopping time k combination 4 is set, this means jumps for the sub-FH interbands of RU 1014 opens and mirror image is closed.Thereby, select RU 1013 at hopping time k.At the hopping time k+1 that is provided with combination 3, RU 1013 quilt FH interbands jump and are mirrored to RU 1012.
Next, will use sequence to come the method for the combination of chooser FH interband jump opening/closing and mirror image opening/closing to make description to being used to.
(1) because need sequence to indicate the combination of from four kinds of combinations of sub-FH interband jump opening/closing and mirror image opening/closing, selecting, and the position of not indicating the RU that is used to jump, so can utilize 4 values to form this sequence.Usually, two of quaternary sequence or combination binary sequences are used to indicate the purpose of selected combination.Can generate this sequence with conventional method, thereby not provide its detailed description here.
(2) generate a plurality of sequences and distribute to the sub-district,, thereby minimize RU conflict between them so that different patterns is applied to neighbor cell at least.For example, be assigned to each sub-district such as one group of orthogonal code of Walsh (Walsh) sign indicating number according to corresponded manner one by one, and each sub-district is selected combination at each hopping time according to sequential value.Replacedly, combination can be selected according to the PN sequence with the seed that is exclusively used in this sub-district in each sub-district.Compare with preceding a kind of method, a kind of method in back has increased the randomization between the sub-district, thereby has minimized the phenomenon that RU jumps according to same mode in different districts.To in context, the second embodiment of the present invention be described below based on the method for PN sequence.
In order to generate the PN sequence, use the cell-specific seed, and obtain same PN sequence, the UE in the same sub-district should receive identical timing information.Timing information can be represented as absolute time and poor between the current time, perhaps can be represented as frame count common time such as SFN.
Figure 11 illustrates the operation of UE according to a second embodiment of the present invention.When Node B when UE receives data, same operational applications is in this Node B.
With reference to Figure 11, when node B scheduling was used for the specific RU of UE, UE generated the PN sequential value in step 1101, and determined that in step 1102 the PN sequential value is 1,2,3 or 4.If the PN sequential value is 1, then UE selects mirror image to open the combination of jumping and opening with sub-FH interband in step 1103.If the PN sequential value is 2, then UE selects mirror image to close the combination of jumping and closing with sub-FH interband in step 1104.If the PN sequential value is 3, then UE selects mirror image to close the combination of jumping and opening with sub-FH interband in step 1105.If the PN sequential value is 4, then UE selects mirror image to open the combination of jumping and closing with sub-FH interband in step 1106.In step 1107, UE is identified for the RU of transfer of data by mirror image and/or jump according to selected combination.UE sends data in determined RU in step 1108.
Except PN sequence generator 701 and 802 generates in 4 values 1 to 4 one and the value that is generated offered Data Transmission Control Unit 702 and the position of uplink scheduler 802 with definite RU, transmitter according to a second embodiment of the present invention has and the configuration identical with receiver according to the transmitter of the first embodiment of the present invention with receiver.
Figure 12 illustrates the channel architecture of a third embodiment in accordance with the invention.
For wherein existing as shown in figure 12 a plurality of sub-FH bands and jumping always occur in system between the sub-FH band, a kind of method of determining the mirror image opening/closing for each sub-district according to different patterns is disclosed.Use different mirror image opening/closing patterns to reduce the possibility of in different districts, carrying out mirror image at one time for different sub-districts, thereby cause the randomization of maximized presence of intercell interference.
Figure 13 and Figure 14 illustrate the method for a third embodiment in accordance with the invention.Particularly, Figure 13 illustrates the mirror method that is independent of HARQ, and Figure 14 illustrates the method for carrying out mirror image based on the HARQ process.
With reference to Figure 13, the two all supports to jump in the subframe because suppose sub-district 1301 and 1311 (sub-district A and sub-district B), so the hopping time section is a time slot.In the A of sub-district according to opening, open, close, close, open, close, close, closing ... pattern 1310 carry out mirror image at each hopping time, in the B of sub-district according to opening, close, close, open, close, close, open, opening ... pattern 1320 carry out mirror image at each hopping time.
In the A of sub-district, if the RU 1302 in the sub-FH band of hopping time k # 1 is assigned to UE, then because always using sub-FH interband jumps, so it jumps to sub-FH band # 2, and according to mirror image pattern 1310 and by mirror image.Therefore, UE uses RU 1303 in time slot (k+1).At next hopping time (k+2), UE closes and selects RU 1304 by jumping to sub-FH band # 1 and mirror image.Close because occur to jump and the mirror image of sub-FH band # 2 at next hopping time (k+3), so UE uses RU 1305 in time slot (k+3).
A compares with the sub-district, for the different mirror image opening/closing pattern of sub-district B definition.Particularly, come opening/closing mirror image at each hopping time according to different modes for each sub-district.Though may select same RU at given hopping time sub-district A and sub-district B, the third embodiment of the present invention has reduced the possibility of selecting same RU in two sub-districts at next hopping time.
For example, when same RU 1302 and 1312 was distributed to UE A among the A of sub-district and the UE B among the B of sub-district respectively for a time period, if UE B and sub-district A are contiguous, then UE A was subjected to remarkable interference from UE B probably at hopping time k.Yet, because sub-district A next hopping time (k+1) carry out that sub-FH interband jumps and mirror image the two, so UE A sends data in RU 1303 in time slot (k+1), and sub-FH interband jumps and opens and mirror image is closed for UE B, thus UE B in time slot (k+1) among RU 1313 the transmission data.Like this, UE A uses different RU with UE B in time slot (k+1), thereby has avoided the lasting interference from same UE.
Mirror method shown in Figure 14 is to carry out mirror image and the different different mirror image opening/closing patterns of sub-district use with the similar part of the mirror method shown in Figure 13 after sub-FH interband jumps, and the difference of the former with the latter is: in Figure 14, come mirror image RU with respect to the RU in the same HARQ process, rather than as among Figure 13, coming mirror image RU with respect to the RU that uses in the last transmission time.
That is to say, at hopping time (k+RTT), the RU 1407 that UE in the sub-district 1401 (sub-district A) uses RU 1406 mirror images that will use in the time slot (k+1) of same HARQ process to obtain, rather than the RU that obtains of the use RU mirror image that will in last time slot (k+RTT-1), use.Based on the mirror image of HARQ RTT be convenient to define wherein for initial transmission with retransmit the mirror image opening/closing pattern that uses different RU, thereby maximized the interference diversity effect.
Except sub-FH interband jump all took place the institute during selecting RU if having time, UE determined the mirror image opening/closing according to the mode identical with the first embodiment of the present invention.
In order to realize the third embodiment of the present invention, provide for example jump pattern formula of equation (2).UE uses the index of this jump pattern formula and institute's scheduled resources piece to know the Resource Block that will use in each transmission time.Equation (2) jump to use skew (sub-band-basedshifting) based on subband for intersubband, and as follows:
O
s＝f_s-N
o·h(t)，O
s＝O
s?mod?N_RB
if?0≤O
s＜N
s
f
hop(i)＝N
o·h(i)+O
s+{(N
s-1)-2×(O
s?mod(N
s))}×m(i)
f
hop(i)＝f
hop(i)modN_RB
else?if?N
s≤O
s
f
hop(i)＝N
o·h(i)+O
s+{(N
o-1)-2×((O
s-N
s)mod(N
o))}×m(i)
f
hop(i)＝f
hop(i)modN_RB
……(2)
Wherein, O
sExpression is scheduled for the skew of the Resource Block of UE apart from the cyclic shift reference point, and f_s represents the index by the Resource Block of scheduling authorization (grant) distribution, and h (t) expression institute scheduled resources piece is recycled the degree of displacement, f in scheduling time (t)
Hop(i) be illustrated in the index of hopping time (t), the Resource Block after jumping, N_RB represents to can be used for the sum of the Resource Block of transfer of data, and N
oAnd N
sIt is the maximum quantity that can be scheduled for the Resource Block of carrying out the UE that jumps.
If the total N_RB of Resource Block is not the multiple of sub band number M, then particular sub-band has the number of resource blocks N than other each subband
oFew number of resource blocks N
sBecause equation (2) supposes only to have a subband to have less resources piece number, calculate N by equation (3)
oAnd N
s, as follows:
……(3)
In equation (2), h (t) expression cyclic shift degree, be according to the bit value of random sequence select 0,1 ..., among the M} one.h(0)＝0。M (i) is the parameter of determining at hopping time (i) mirror image opening/closing, be 0, among the 1} one.Select m (i) according to the bit value of random sequence, perhaps select m (i) by h (i)=x/2 and m (i)=xMod (2), wherein x be according to the bit value of random sequence select 0,1 ..., among the M} one.If m (i)=0, then mirror image is closed, and if m (i)=1, then mirror image is opened.
Particularly, in equation (2), by the first capable skew O that at first calculates in the scheduling time of institute's scheduled resources piece of equation (2)
sO
sHow far the Resource Block that indication is recycled displacement has apart from the cyclic shift reference point.
Because following former thereby introducing O
sWhen the total N_RB of Resource Block was not the multiple of sub band number M, subband did not have identical stock number, so that the intersubband that leads to the failure jumps.Therefore, in the third embodiment of the present invention, subband formed make a subband have number of resource blocks N than other each subbands
oFew number of resource blocks N
s, and O
sBe used for having the subband of less resources piece number to the UE indication.
For example, if N_RB be 22 and M be 4, then subband arrangement can be had 4 Resource Block for making the subband of winning, and other each subbands have 6 Resource Block.In this sub band structure, if O
sLess than 4, then UE knows that institute's scheduled resources piece is present in the less subband.
Then, according to first conditional statement of equation (2), institute's scheduled resources piece is according to skew O
sWith respect to Resource Block 0 to N
s-1 and be recycled displacement, and then at N
sIndividual Resource Block is interior by mirror image.If m (i)=0, then mirror image is closed.
If O
sGreater than N
s, this hint institute scheduled resources piece is present in the normal sub-band, then carries out cyclic shift according to second conditional statement of equation (2), then at N
oCarry out mirror image in the individual Resource Block.If m (i)=0, then mirror image is closed.
Depend on subband arrangement, can expect further that in a plurality of subbands each has N
sIndividual Resource Block, and in remaining a plurality of subband each has N
oIndividual Resource Block.For example, if given 4 subbands, then each in two subbands has 5 Resource Block, and in other two subbands each has 6 Resource Block.Can use skew to indicate the conditional statement of the equation (2) of the subband of being dispatched easily to realize this situation by revising.
If open or close mirror image according to the random pattern in each sub-district, then continuous mirror image opening/closing has increased in different districts in same RU from the possibility of the transfer of data of UE.Consider so, with regard to channel quality, preferably when sending data, obtain enough frequency diversities, be necessary to allow UE under such as the continuous data transmission situation of initial transmission and repeating transmission, to select different RU at least in each transmission time by the HARQ process.For this reason, the fourth embodiment of the present invention discloses a kind of method of limited use, be used for when needs, generating at random the mirror image pattern and according to this at random the mirror image pattern determine the mirror image opening/closing.In supporting subframe, jump and subframe between when jumping the two, in two kinds of jump schemes one always open, and come the opening/closing mirror image according to mirror image opening/closing pattern at random for another jump scheme at each hopping time mirror image.
Figure 15 illustrate a fourth embodiment in accordance with the invention, always open mirror image for jumping between subframe and to determine the method for mirror image opening/closing for jumping in the subframe according to mirror image opening/closing pattern at random.
As in the second embodiment of the present invention, sub-FH band is positioned at the both sides of band system band, and the FS band is inserted in the center frequency-band between the sub-FH band.In order to obtain frequency diversity gain, as in the third embodiment of the present invention, RU jumps between sub-FH band at each hopping time.
With reference to Figure 15, basis is opened, closes, is closed in sub-district 1500 (sub-district A) ... pattern hopping time generation mirror image in each subframe, in sub-district 1520 (sub-district B) according to closing, close, open ... pattern hopping time generation mirror image in each subframe.
When RU 1502 in the A of sub-district at hopping time (k-RTT) when being assigned to UE, UE at next hopping time (k-RTT+1) by selecting RU 1503 according to the mirror image of mirror image opening/closing pattern.At the hopping time k as next transmission time of same HARQ process, mirror image is always opened.For the RU that selects to send with last transmission time in same HARQ process is in the RU of diverse location, select RU 1504 by RU 1502 mirror images that will in first time slot (k-RTT) in last HARQ transmission time, use.Because close according to mirror image opening/closing pattern mirror image, so UE selects RU 1505 at next hopping time (k+1).At the hopping time (k+RTT) as next transmission time of same HARQ process, mirror image is always opened.For the RU that selects Yu send in the last HARQ transmission time is in the RU of diverse location, RU 1504 is mirrored onto RU 1506.Because close according to mirror image opening/closing pattern mirror image, so UE selects RU 1507 at next hopping time (k+RTT+1).
In an identical manner, in the B of sub-district, UE comes the opening/closing mirror image to jump to another sub-FH band by hopping time in each subframe according to mirror image opening/closing pattern at random.That is to say,, then select RU 1509 by closing mirror image according to mirror image opening/closing pattern at next hopping time (k-RTT+1) if in time slot (k-RTT), use RU 1508.Because carry out mirror image in next HARQ transmission time for the RU 1508 that uses in the last transmission time of same HARQ process, so select RU 1510 at hopping time k.At hopping time (k+1), close according to mirror image opening/closing pattern mirror image, thereby select RU 1511.Because carry out mirror image in next HARQ transmission time for the RU 1510 that uses in the last transmission time of same HARQ process, so select RU1512 at hopping time (k+RTT).At hopping time (k+RTT+1), open according to mirror image opening/closing pattern mirror image, thereby select RU 1513.
Be apparent that by foregoing description the present invention is by opening or closing mirror image according to different mirror image opening/closing patterns at each hopping time in each sub-district, advantageously randomization presence of intercell interference, increased the frequency diversity effect.
Though illustrate and described the present invention with reference to one exemplary embodiment more of the present invention, but it will be appreciated by those skilled in the art that, the various changes on formal and the details can be made here, and the spirit and scope of the present invention that limit by appended claims and equivalent thereof can be do not deviated from.
Claims (23)
1. one kind is used in single-carrier frequency division multiple access (SC-FDMA) communication system comprising to subscriber equipment (UE) method of allocating resources:
Based on the sub-district, determine on frequency axis, to open or close the intersubband jump and open or close mirror image at set hopping time for the Resource Unit that is used for UE, wherein, along at least two subbands of described frequency axis definition; And
By determining optionally to carry out according to described that intersubband jumps and mirror image is selected Resource Unit for the Resource Unit of the described UE of being used for, and with selected resource unit allocation to described UE.
2. method according to claim 1, wherein, describedly determine also to comprise: with the sub-district is that basic chooser interband jumps and opens or closes in a plurality of combinations that open or close with mirror image one, and determines to open or close intersubband and jump and mirror image according to selected combination.
3. method according to claim 1, wherein, the Resource Unit of the described UE of being used for is a Resource Unit of distributing to described UE at last hopping time.
4. method according to claim 1, wherein, the Resource Unit of the described UE of being used for is the Resource Unit that is used for the last data transmission of same mixed automatic retransmission request (HARQ) process.
5. method according to claim 2, wherein, described combination selection also comprises: each is the sequence of one bit in 4 bits according to having it, selects in the described combination one at set hopping time.
6. method according to claim 5, wherein, described sequence is the cell-specific orthogonal code of selecting from one group of orthogonal code.
7. method according to claim 5, wherein, described sequence is pseudo noise (PN) sequence with cell-specific seed.
One kind in single-carrier frequency division multiple access (SC-FDMA) communication system by from the Node B method of allocating resources, comprising:
At set hopping time, determine on frequency axis, to open or close the intersubband jump and open or close mirror image for the Resource Unit that is used for UE, wherein, along at least two subbands of described frequency axis definition; And
By determining optionally to carry out according to described that intersubband jumps and mirror image is selected Resource Unit for the Resource Unit of the described UE of being used for, and in selected Resource Unit to described Node B transmission data.
9. method according to claim 8, wherein, describedly determine also to comprise: jumping for the cell selecting intersubband opens or closes in a plurality of combinations that open or close with mirror image one, and determines to open or close intersubband and jump and mirror image according to selected combination.
10. method according to claim 8, wherein, the Resource Unit of the described UE of being used for is a Resource Unit of distributing to described UE at last hopping time.
11. method according to claim 8, wherein, the Resource Unit of the described UE of being used for is the Resource Unit that is used for the last data transmission of same mixed automatic retransmission request (HARQ) process.
12. method according to claim 9, wherein, described combination selection also comprises: each is the sequence of one bit in 4 bits according to having it, selects in the described combination one at set hopping time.
13. method according to claim 12, wherein, described sequence is the cell-specific orthogonal code of selecting from one group of orthogonal code.
14. method according to claim 12, wherein, described sequence is pseudo noise (PN) sequence with cell-specific seed.
15. one kind is used for comprising at the equipment of single-carrier frequency division multiple access (SC-FDMA) communication system to the Node B of subscriber equipment (UE) Resources allocation:
Scheduler, based on the sub-district, determine on frequency axis, to open or close the intersubband jump and open or close mirror image at set hopping time for the Resource Unit that is used for UE, wherein along at least two subbands of described frequency axis definition, and by determining to carry out optionally that intersubband jumps and mirror image selects to distribute to the Resource Unit of described UE for the Resource Unit of the described UE of being used for according to described;
Mapper, the data that receive from described UE according to the information separated that receives from described scheduler about selected Resource Unit; And
Decoder, the data after decoding separates.
16. equipment according to claim 15, also comprise: sequence generator, generate and indicate for the sub-district in each sequence that the jump of hopping time intersubband is opened or closed and mirror image is opened or closed, wherein, described scheduler is that basic chooser interband jumps and opens or closes in a plurality of combinations that open or close with mirror image one with the sub-district, and determines to open or close intersubband and jump and mirror image according to selected combination.
17. equipment according to claim 15, wherein, described scheduler is carried out mirror image to the Resource Unit of distributing to described UE at last hopping time or by the Resource Unit that UE is used for the last data transmission of same mixed automatic retransmission request (HARQ) process.
18. equipment according to claim 16, wherein, described sequence generator generates according to one group of orthogonal code and is used for the cell-specific orthogonal code of sub-district or the pseudo noise with cell-specific seed (PN) sequence that generation is used for the sub-district.
19. an equipment that sends the subscriber equipment (UE) of data in single-carrier frequency division multiple access (SC-FDMA) communication system to Node B comprises:
Data Transmission Control Unit, based on the sub-district, determine on frequency axis, to open or close the intersubband jump and open or close mirror image at set hopping time for the Resource Unit that is used for UE, wherein, along at least two subbands of described frequency axis definition; And
Mapper, to by determining optionally to carry out the Resource Unit that intersubband jump and mirror image are selected for the Resource Unit of the described UE of being used for according to described, and the data after will shining upon send to described Node B with data map.
20. equipment according to claim 19, also comprise: sequence generator, generation be exclusively used in the sub-district, indication jumps at each hopping time intersubband for the sub-district and opens or close and sequence that mirror image is opened or closed, wherein, described Data Transmission Control Unit jumps according to the bit value chooser interband of described sequence for the sub-district and opens or closes in a plurality of combinations that open or close with mirror image one, and determines to open or close intersubband and jump and mirror image according to selected combination.
21. equipment according to claim 19, wherein, described Data Transmission Control Unit is carried out mirror image to the Resource Unit of distributing to the Resource Unit of described UE at last hopping time or being used for the last data transmission of same mixed automatic retransmission request (HARQ) process.
22. equipment according to claim 20, wherein, described sequence generator generates the cell-specific orthogonal code according to one group of orthogonal code or generation has pseudo noise (PN) sequence of cell-specific seed.
23. one kind is used in single-carrier frequency division multiple access (SC-FDMA) communication system comprising to subscriber equipment (UE) method of allocating resources:
Based on the sub-district, determine to open or close mirror image for the Resource Unit that is used for UE along frequency axis at set hopping time; And
By determining that according to described optionally the described Resource Unit of mirror image is selected Resource Unit, and give described UE with selected resource unit allocation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210339521.0A CN102868423B (en) | 2007-01-09 | 2008-01-09 | For equipment and the method for Resources allocation in single carrier-frequency division multiple access system |
Applications Claiming Priority (13)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020070002657 | 2007-01-09 | ||
| KR10-2007-0002657 | 2007-01-09 | ||
| KR20070002657 | 2007-01-09 | ||
| KR10-2007-0058331 | 2007-06-14 | ||
| KR1020070058331A KR20080065518A (en) | 2007-01-09 | 2007-06-14 | Method for frequency hopping in single carrier frequency division multiple access system |
| KR1020070058331 | 2007-06-14 | ||
| KR1020070080204A KR20080065523A (en) | 2007-01-09 | 2007-08-09 | Method for frequency hopping in single carrier frequency division multiple access system |
| KR10-2007-0080204 | 2007-08-09 | ||
| KR1020070080204 | 2007-08-09 | ||
| KR1020070126476A KR100942289B1 (en) | 2007-01-09 | 2007-12-07 | Method and apparatus for resource allocation in single carrier frequency division multiple access system |
| KR10-2007-0126476 | 2007-12-07 | ||
| KR1020070126476 | 2007-12-07 | ||
| PCT/KR2008/000131 WO2008084980A1 (en) | 2007-01-09 | 2008-01-09 | Apparatus and method for allocating resources in a single carrier-frequency division multiple access system |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210339521.0A Division CN102868423B (en) | 2007-01-09 | 2008-01-09 | For equipment and the method for Resources allocation in single carrier-frequency division multiple access system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101632242A true CN101632242A (en) | 2010-01-20 |
| CN101632242B CN101632242B (en) | 2013-05-22 |
Family
ID=39816369
Family Applications (4)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008800078051A Active CN101632242B (en) | 2007-01-09 | 2008-01-09 | Apparatus and method for allocating resources in a single carrier-frequency division multiple access system |
| CN2008800019250A Active CN101578781B (en) | 2007-01-09 | 2008-01-09 | Apparatus and method for allocating resources in a single carrier-frequency division multiple access system |
| CN201210339521.0A Active CN102868423B (en) | 2007-01-09 | 2008-01-09 | For equipment and the method for Resources allocation in single carrier-frequency division multiple access system |
| CN201310052672.2A Active CN103152831B (en) | 2007-01-09 | 2008-01-09 | The apparatus and method of Resources allocation in single carrier-frequency division multiple access system |
Family Applications After (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008800019250A Active CN101578781B (en) | 2007-01-09 | 2008-01-09 | Apparatus and method for allocating resources in a single carrier-frequency division multiple access system |
| CN201210339521.0A Active CN102868423B (en) | 2007-01-09 | 2008-01-09 | For equipment and the method for Resources allocation in single carrier-frequency division multiple access system |
| CN201310052672.2A Active CN103152831B (en) | 2007-01-09 | 2008-01-09 | The apparatus and method of Resources allocation in single carrier-frequency division multiple access system |
Country Status (6)
| Country | Link |
|---|---|
| JP (5) | JP5138704B2 (en) |
| KR (3) | KR20080065518A (en) |
| CN (4) | CN101632242B (en) |
| AU (2) | AU2008204078B2 (en) |
| CA (2) | CA2675053C (en) |
| RU (1) | RU2411653C1 (en) |
Families Citing this family (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6947748B2 (en) * | 2000-12-15 | 2005-09-20 | Adaptix, Inc. | OFDMA with adaptive subcarrier-cluster configuration and selective loading |
| US10084627B2 (en) * | 2006-07-10 | 2018-09-25 | Qualcomm Incorporated | Frequency hopping in an SC-FDMA environment |
| KR20080065518A (en) * | 2007-01-09 | 2008-07-14 | 삼성전자주식회사 | Method for frequency hopping in single carrier frequency division multiple access system |
| EP1944875B1 (en) | 2007-01-09 | 2018-11-14 | Samsung Electronics Co., Ltd. | Apparatus and method for allocating resources in a single carrier-frequency division multiple access system |
| KR20100008150A (en) | 2008-07-15 | 2010-01-25 | 삼성전자주식회사 | Apparatus and method for improving hybrid automatic repeat request combining gain in broadband wireless communication system |
| KR101156164B1 (en) * | 2008-12-22 | 2012-06-18 | 한국전자통신연구원 | Terminal and base station in the carrier aggregation communication system, and call admission control method using these |
| KR101534169B1 (en) * | 2008-12-23 | 2015-07-07 | 삼성전자 주식회사 | Method and apparatus for allocation of frequency in wireless communication systems with frequency hopping mode |
| US9374131B2 (en) | 2009-01-28 | 2016-06-21 | Qualcomm Incorporated | Frequency hopping in a wireless communication network |
| KR20120082711A (en) * | 2011-01-14 | 2012-07-24 | 주식회사 팬택 | Apparatus and method for transmitting and receiving positioning reference signal in heterogeneous communication system |
| KR20120093026A (en) * | 2011-02-14 | 2012-08-22 | 주식회사 팬택 | Apparatus and method for allocating reference signal in communication system, and apparatus and method for receiving reference signal using the same |
| KR102128544B1 (en) * | 2012-12-26 | 2020-06-30 | 현대모비스 주식회사 | Radar device and signal processing method applying the same |
| CN106160981A (en) * | 2015-04-10 | 2016-11-23 | 中兴通讯股份有限公司 | The determination method and device of channel information |
| GB2555612B (en) * | 2016-11-04 | 2021-06-16 | Tcl Communication Ltd | Systems and methods for allocation of wireless resources |
| US10667282B2 (en) * | 2017-07-11 | 2020-05-26 | Qualcomm Incorporated | Uplink hopping pattern modes for hybrid automatic repeat request (HARQ) transmissions |
| CN114375063A (en) | 2017-08-11 | 2022-04-19 | 展讯通信（上海）有限公司 | Resource allocation method and device, user equipment, base station and readable storage medium |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2299568A1 (en) * | 1999-03-11 | 2000-09-11 | Lucent Technologies Inc. | Orthogonal frequency division multiplexing based spread spectrum multiple access system using directional antenna |
| CN1152493C (en) * | 2002-06-20 | 2004-06-02 | 上海交通大学 | Method for inhibiting peak-to-average ratio in orthogonal frequency division complex communication system |
| JP4684628B2 (en) * | 2004-11-16 | 2011-05-18 | Ｋｄｄｉ株式会社 | Subcarrier allocation apparatus and multicarrier radio communication system |
| US8730877B2 (en) | 2005-06-16 | 2014-05-20 | Qualcomm Incorporated | Pilot and data transmission in a quasi-orthogonal single-carrier frequency division multiple access system |
| KR100918729B1 (en) * | 2006-01-09 | 2009-09-24 | 삼성전자주식회사 | Method and apparatus for time multiplexing packet data and uplink control information in single carrier frequency division multiple access system |
| KR101196897B1 (en) * | 2006-01-20 | 2012-11-01 | 에릭슨 엘지 주식회사 | Method and apparatus for allocating a frequency band to a random access channel in wireless telecommunication system, method and apparatus for transmitting/receiving signals via the random access channel thereof |
| CN100464543C (en) * | 2006-01-27 | 2009-02-25 | 东南大学 | Compatible single-carrier OFDMA signal transmitting method |
| US10084627B2 (en) * | 2006-07-10 | 2018-09-25 | Qualcomm Incorporated | Frequency hopping in an SC-FDMA environment |
| KR20080065518A (en) * | 2007-01-09 | 2008-07-14 | 삼성전자주식회사 | Method for frequency hopping in single carrier frequency division multiple access system |
-
2007
- 2007-06-14 KR KR1020070058331A patent/KR20080065518A/en unknown
- 2007-08-09 KR KR1020070080204A patent/KR20080065523A/en unknown
- 2007-12-07 KR KR1020070126476A patent/KR100942289B1/en active IP Right Grant
-
2008
- 2008-01-09 CA CA2675053A patent/CA2675053C/en active Active
- 2008-01-09 CN CN2008800078051A patent/CN101632242B/en active Active
- 2008-01-09 CN CN2008800019250A patent/CN101578781B/en active Active
- 2008-01-09 CA CA002674964A patent/CA2674964A1/en not_active Abandoned
- 2008-01-09 AU AU2008204078A patent/AU2008204078B2/en active Active
- 2008-01-09 JP JP2009545490A patent/JP5138704B2/en active Active
- 2008-01-09 JP JP2009540180A patent/JP4944206B2/en active Active
- 2008-01-09 CN CN201210339521.0A patent/CN102868423B/en active Active
- 2008-01-09 RU RU2009126169/09A patent/RU2411653C1/en active
- 2008-01-09 CN CN201310052672.2A patent/CN103152831B/en active Active
- 2008-01-09 AU AU2008204077A patent/AU2008204077B2/en active Active
-
2012
- 2012-02-16 JP JP2012031410A patent/JP5362056B2/en active Active
- 2012-09-19 JP JP2012205559A patent/JP2013017227A/en active Pending
-
2014
- 2014-07-04 JP JP2014138441A patent/JP5795106B2/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CA2674964A1 (en) | 2008-07-17 |
| AU2008204077B2 (en) | 2011-06-30 |
| AU2008204078B2 (en) | 2011-05-19 |
| AU2008204077A1 (en) | 2008-07-17 |
| JP2010512100A (en) | 2010-04-15 |
| JP2012095366A (en) | 2012-05-17 |
| CN101632242B (en) | 2013-05-22 |
| JP2014180063A (en) | 2014-09-25 |
| AU2008204078A1 (en) | 2008-07-17 |
| JP4944206B2 (en) | 2012-05-30 |
| KR20080065523A (en) | 2008-07-14 |
| JP5795106B2 (en) | 2015-10-14 |
| JP2013017227A (en) | 2013-01-24 |
| CN101578781A (en) | 2009-11-11 |
| CN103152831A (en) | 2013-06-12 |
| CA2675053A1 (en) | 2008-07-17 |
| JP2010516156A (en) | 2010-05-13 |
| JP5362056B2 (en) | 2013-12-11 |
| CN103152831B (en) | 2016-05-18 |
| CN102868423B (en) | 2015-09-23 |
| KR100942289B1 (en) | 2010-02-16 |
| CA2675053C (en) | 2015-12-29 |
| CN102868423A (en) | 2013-01-09 |
| RU2411653C1 (en) | 2011-02-10 |
| KR20080065518A (en) | 2008-07-14 |
| KR20080065528A (en) | 2008-07-14 |
| JP5138704B2 (en) | 2013-02-06 |
| CN101578781B (en) | 2013-04-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101632242B (en) | Apparatus and method for allocating resources in a single carrier-frequency division multiple access system | |
| CN108111282B (en) | Wireless communication method and device | |
| US9565678B2 (en) | Apparatus and method for allocating resources in a single carrier-frequency division multiple access system | |
| CN102754373B (en) | For the apparatus and method of the feature of enhanced uplink reference signal | |
| JP5914628B2 (en) | Sounding reference signal transmission method and apparatus in uplink radio communication system using multiple antennas and sounding reference signal hopping | |
| CN101917765B (en) | A kind of collocation method of measuring reference signals and system | |
| US9203569B2 (en) | Method for transmitting pilot for multiple carrier system | |
| US8532035B2 (en) | Method for resource partitioning with predefined pattern and adaptive resource partitioning method | |
| CN102187726A (en) | Carrier aggregation | |
| TW201112829A (en) | Base station and method for allocating midamble channel | |
| TWI380620B (en) | A method of allocating wireless resources in a multi-carrier system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170505 Address after: Dublin, Ireland Patentee after: Wireless planet International Limited Address before: Gyeonggi Do, South Korea Patentee before: Samsung Electronics Co., Ltd. |