US9271268B2 - Wireless transmission device, wireless reception device, and bandwidth allocation method for setting a band where other bands indicated by continuous band allocation information do not overlap - Google Patents
Wireless transmission device, wireless reception device, and bandwidth allocation method for setting a band where other bands indicated by continuous band allocation information do not overlap Download PDFInfo
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- H04W72/0406—
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0037—Inter-user or inter-terminal allocation
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0037—Inter-user or inter-terminal allocation
- H04L5/0041—Frequency-non-contiguous
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0058—Allocation criteria
- H04L5/0067—Allocation algorithms which involve graph matching
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
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- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/0091—Signaling for the administration of the divided path
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- 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
Definitions
- the present invention relates to a radio transmission apparatus, a radio reception apparatus, and a band allocation method that allocate non-contiguous bands.
- the upstream channel of 3GPP LTE employs contiguous band transmission in which a data signal of each terminal is allocated to contiguous frequency band to reduce CM/PAPR (Cubic Metric/Peak to Average Power Ratio).
- CM/PAPR Cubic Metric/Peak to Average Power Ratio
- Each terminal transmits data according to frequency allocation resource information notified from a base station.
- the frequency allocation resource information means two pieces of information that include a start RB (Resource Block) number and an end RB number where the term “RB” indicates a frequency allocation unit formed of twelve subcarriers.
- RIV Resource Indication Value
- FIG. 1 shows the RIV tree structure that indicates contiguous band allocation within RB# 0 to RB# 5 .
- RIV Resource Indication Value
- FIG. 1 shows the RIV tree structure that indicates contiguous band allocation within RB# 0 to RB# 5 .
- the allocation resource information for the terminal includes RB# 0 and RB# 1 that are the base of the tree.
- RIVs 6 to 10
- RIVs 17 to 16
- Utilization of the first to sixth RIVs enables the contiguous band with twenty-one patterns to be indicated out of RB# 0 to RB# 5 located at the base of the tree.
- Non-Patent Literature 1 It is studied that the upstream channel of LIE-Advanced as an evolved form of LTE employs non-contiguous band transmission in addition to the contiguous band transmission to improve sector throughput performance (see Non-Patent Literature 1).
- the non-contiguous band transmission is a transmission method of allocating data signals and reference signals to non-contiguous bands that are distributed over a wide band.
- the non-contiguous band transmission can allocate the data signals and the reference signals to discrete frequency bands as shown in FIG. 2 .
- the non-contiguous band transmission can increase the degree of freedom of frequency band allocation of the data signal and the reference signal at each terminal to have a larger frequency scheduling effect compared to the contiguous band transmission.
- a conventional method of sending the non-contiguous band allocation resource information from the base station to the terminals is to notify any terminal of the non-contiguous band allocation by sending a plurality of RIVs (contiguous band allocation information) to the terminal (see Non-Patent Literature 2).
- NPL 2 discloses that RBG numbers (RBG#) are assigned by allocation granularity (4 RB in FIG. 3 ) referred to herein as RBG (Resource Block Group) and the scheduled terminal is notified of RIV indicating a start RBG# and an end RBG#.
- the base station notifies the terminal of two RIVs (RIV# 1 and RIV # 2 ) as shown in FIG. 3 , thereby enabling allocation of two clusters (each being a contiguous band block), i.e., non-contiguous bands to the terminal.
- RBG Resource Block Group
- An RBG size is determined according to a system bandwidth as shown in FIG. 4 .
- the RBG size will be 4 RB as shown in FIG. 3 .
- the number of signaling bits of the allocation resource information is thus reduced by increasing RBG size according to the magnitude of the system bandwidth.
- the conventional non-contiguous band allocation method using a plurality of RIVs decreases the usage efficiency of system frequency resources to impair system performance due to coarse allocation granularity.
- control signals with the bandwidth of 1 RB are transmitted at both ends of the system band.
- FIG. 5 shows that PUCCHs sent from two terminals are multiplexed and occupy 2 RB resources.
- a method of allocating the 1 RB granularity to limit a contiguous band may also send VoIP signals with 1 to 3 RB band widths within any band of the system band.
- contiguous band allocation signals of one RB granularity are less than the number of RBs consisting of RBG as a non-contiguous band allocation unit, unused resources less than one RBG occur as shown in FIG. 5 and FIG. 6 .
- the conventional method of allocating non-contiguous band cannot allocate frequency resources less than one RBG that occurs as noted above to the terminal due to the allocation granularity of RBG unit. Therefore the usage efficiency of the system frequency resources decreases and the system performance deteriorates.
- An object of the present invention is to provide a radio transmission apparatus, a radio reception apparatus, and a band allocation method that improve the usage efficiency of the system frequency resources and increase the system performance in allocation of non-contiguous bands.
- a radio transmission apparatus includes: a receiver configured to receive a plurality of continuous band allocation information indicating allocation of continuous bands; a transmission band setting unit configured to set allocation unit boundaries of a plurality of bands allocated using the plurality of continuous band allocation information such that the allocation unit boundaries of the plurality of bands differ from each other, and set a band where the plurality of bands indicated by the plurality of continuous band allocation information do not overlap, as a transmission band based on the different allocation unit boundaries; and a transmitter configured to transmit transmission data on the set transmission band.
- a radio reception apparatus includes: a receiver configured to receive signals transmitted from a communication counterpart; a band setting unit configured to set allocation unit boundaries of a plurality of bands allocated using a plurality of continuous band allocation information such that the allocation unit boundaries of the plurality of bands differ from each other, and set a band where the plurality of bands indicated by the plurality of continuous band allocation information do not overlap, as an allocation band based on the different allocation unit boundaries; and an extractor configured to extract the received signals on the set allocation band.
- a band allocation method includes: setting allocation unit boundaries of a plurality of bands allocated using a plurality of continuous band allocation information indicating continuous band allocation, such that the allocation unit boundaries of the plurality of bands differ from each other; and determining a band where the plurality of bands indicated by the plurality of continuous band allocation information do not overlap, as a transmission band based on the set allocation unit boundaries.
- the usage rate of system frequency resources improves and the performance of the system can improve in allocation of non-contiguous bands.
- FIG. 1 shows a tree structure of RIVs
- FIG. 2 shows contiguous band allocation and non-contiguous band allocation
- FIG. 3 shows non-contiguous band allocation using a plurality of RIVs disclosed in NPL 2;
- FIG. 4 indicates the relationship between system bandwidth and RBG size
- FIG. 5 illustrates a transmission mode of PUCCHs at both ends of the system band
- FIG. 6 illustrates a transmission mode of VoIP signals within any band of the system bands
- FIG. 7 is a block diagram illustrating the configuration of a terminal according to Embodiment 1 of the present invention.
- FIG. 8 is a block diagram illustrating the configuration of a base station according to Embodiment 1 of the present invention.
- FIG. 9 illustrates the definition of allocation unit boundaries of each RIV
- FIG. 10 illustrates allocation bands where bands indicated by RIVs overlap with each other
- FIG. 11 illustrates allocation bands where bands indicated by RIVs do not overlap with each other
- FIG. 12 illustrates a band less than one RBG which is allocated even if PUCCHs are sent at both ends of the system band
- FIG. 13 illustrates a band less than one RBG which is allocated even if VoIPs are sent at the center of the system band
- FIG. 14 illustrates an RIV which can also indicate a band beyond one end of the system band
- FIG. 15 is a block diagram illustrating the configuration of a terminal according to Embodiment 2 of the present invention.
- FIG. 16 illustrates non-contiguous band allocation where the allocation unit boundaries of the RIVs are aligned
- FIG. 17 is a block diagram illustrating the configuration of a terminal according to Embodiment 3 of the present invention.
- FIG. 18 illustrates bands where the designation using RIV is restricted
- FIG. 19 illustrates a cyclic shift of the set range of RIV within the system band
- FIG. 20 illustrates non-contiguous band allocation using three RIVs.
- FIG. 7 is a block diagram illustrating the configuration of radio communication terminal apparatus (referred to merely as “terminal” hereinafter) 100 according to Embodiment 1 of the present invention.
- the configuration of terminal 100 is described below with reference to FIG. 7 .
- RF reception unit 102 receives signals from a radio communication base station apparatus (referred to merely as a “base station” hereinafter) through antenna 101 , performs reception processing such as down-conversion and A/D conversion for the received signals, and outputs the processed received signals to demodulation unit 103 .
- a radio communication base station apparatus referred to merely as a “base station” hereinafter
- reception processing such as down-conversion and A/D conversion for the received signals
- demodulation unit 103 demodulation unit
- the Demodulation unit 103 demodulates scheduling information from the base station that is included in the received signals output from RF reception unit 102 , and outputs the demodulated scheduling information to scheduling information decoding unit 104 .
- the scheduling information includes, for example, frequency allocation information, data size, power conditioner information, and the amount of cyclic shift for a reference signal of transmission data including RIV (contiguous band allocation information).
- Scheduling information decoding unit 104 decodes the scheduling information output from demodulation unit 103 , and outputs a plurality of RIVs included in the decoded scheduling information to the RIV decoding unit of transmission band setting unit 105 .
- Transmission band setting unit 105 is provided with RIV decoding unit 106 , allocation boundary setting unit 107 , and transmission band determination unit 108 .
- Transmission band setting unit 105 sets a transmission band to which transmission data from terminal 100 is allocated based on the plurality of RIVs output from scheduling information decoding unit 104 , and notifies mapping unit 112 of the set transmission band. The detail of transmission band setting unit 105 will be described later.
- RIV decoding unit 106 decodes a start RBG# and an end RBG# indicated by each RIV output from scheduling information decoding unit 104 based on an RIV tree shown in FIG. 1 , and outputs the decoded start RBG# and end RBG# to transmission band determination unit 108 .
- Allocation boundary setting unit 107 outputs allocation unit boundaries of each RIV to transmission band determination unit 108 .
- a predetermined offset is applied to the boundaries of each RIV in advance such that the allocation unit boundaries of each RIV are made different from each other.
- the predetermined offset is predetermined in the system.
- the offset may be a fixed value, or the base station may notify a terminal in a cell of the predetermined offset included in the system information.
- Transmission band determination unit 108 determines a band indicated by each RIV based on the start RBG# and the end RBG# indicated by the RIV output from RIV decoding unit 106 , and the allocation unit boundaries of the RIV output from allocation boundary setting unit 107 . Transmission band determination unit 108 determines bands where the bands indicated by RIVs do not overlap as allocation bands, and outputs the determined allocation band information to mapping unit 112 .
- Encoding unit 109 encodes transmission data, and outputs the encoded data to modulation unit 110 .
- Modulation unit 110 modulates the encoded data from encoding unit 109 , and outputs the modulated data signals to DFT (Discrete Fourier Transform) unit 111 .
- DFT Discrete Fourier Transform
- DFT unit 111 performs DFT processing for the data signals from modulation unit 110 , and outputs the data signals in the frequency domain where the DFT processing is performed to mapping unit 112 .
- Mapping unit 112 maps the data signals output from the DFT unit to frequency-domain resources according to the allocation band information from transmission band determination unit 108 , and outputs the mapped data signals to IDFT (Inverse Discrete Fourier Transform) unit 113 .
- IDFT Inverse Discrete Fourier Transform
- IDFT unit 113 performs IDFT processing for the signals output from mapping unit 112 , and outputs the IDFT-processed signals to CP (Cyclic Prefix) addition unit 114 .
- CP addition unit 114 adds the same signal as the tail portion of the signals output from IDFT unit 3 to the head of the signals as a CP, and outputs them to RF transmission unit 115 .
- RF transmission unit 115 performs transmission processing such as D/A conversion, up-conversion, and amplification for the signals output from CP addition unit 114 , transmits the signals for which the transmission processing is performed, through antenna 101 .
- FIG. 8 is a block diagram illustrating the configuration of base station 200 according to Embodiment 1 of the present invention. The configuration of base station 200 will now be described with reference to FIG. 8 .
- RF reception unit 202 receives signals transmitted from the terminals through antenna 201 , performs reception processing such as down-conversion and A/D conversion for the received signals, and outputs the signals for which the reception processing is performed to CP removal unit 203 .
- CP removal unit 203 removes the CP components added at the head of the reception signals output from RF reception unit 202 , and outputs the signals to DFT unit 204 .
- DFT unit 204 performs DFT processing for the received signals from CP removal unit 203 to transform them into frequency-domain signals, and outputs the signals transformed into the frequency domain to demapping unit 207 .
- Scheduling information holding unit 205 holds the scheduling information which has been sent to the terminals, and outputs the scheduling information of a desired terminal to be received to transmission band setting unit 206 .
- transmission band setting unit 206 sets the allocation band information of the desired terminal based on the scheduling information from scheduling information holding unit 205 , and notifies demapping unit 207 of the set allocation band information.
- Demapping unit 207 as extraction means extracts signals corresponding to the transmission band of the desired terminal from the frequency-domain signals output from DFT unit 204 according to the allocation band information indicated by transmission band setting unit 206 , and outputs the extracted signals to frequency-domain equalization unit 208 .
- Frequency-domain equalization unit 208 performs equalization for the signals from demapping unit 207 , and outputs the equalized signals to IDFT unit 209 .
- IDFT unit 209 performs IDFT processing for the signals output from frequency-domain equalization unit 208 , and outputs the IDFT-processed signals to demodulation unit 210 .
- Demodulation unit 210 demodulates the signals output from IDFT unit 209 , and outputs the demodulated signals to decoding unit 211 .
- Decoding unit 211 decodes the signals from demodulation unit 210 , and extracts the received data.
- Allocation boundary setting unit 107 makes the allocation unit boundaries of a plurality of RIVs different from each other, and determines bands where the plurality of bands indicated by RIVs do not overlap as allocation bands. Further details will be described hereinafter.
- the reference position of the band indicated by each RIV is predetermined by the terminal and the base station.
- the reference position would be, for example, on the far right or left of the system band, in the band adjacent to PUCCH areas, or on the far tight or left of a SRS (Sounding Reference Signal) transmission area.
- SRS Sounding Reference Signal
- the amplitude (set range) of the band that can be indicated by each RIV is also predetermined by the terminal and the base station. Defining the set range of each RIV so as to allocate the overall system band will provide the highest degree of freedom of allocation. Also, defining the set range of each RIV as part of the system band can reduce the number of signaling bits because of decreased RIV values. It is, however, required to define the set range of each RIV so that areas where the set ranges of RIVs overlap are provided in this case.
- Transmission band determination unit 108 then derives the band indicated by each RIV according to the definition of RBG described above, and determines bands where the plurality of bands indicated by RIVs do not overlap as allocation bands (transmission bands). That is, assuming that the bands (that are within a range from the start RBG# to the end RBG#) indicated by RIVs are equal to “1”, and the bands other than that are equal to “0”, the bands that are equal to “1” as a result of performing the XOR (exclusive OR) operation on bands indicated by RIVs are determined as the allocation bands.
- the notification method of indicating non-contiguous band allocation using a plurality of RIVs thus makes allocation unit boundaries of the plurality of RIVs different from each other, and determines bands where the bands indicated by the RIVs do not overlap as the allocation bands, thereby enabling the indication of non-contiguous band allocation including contiguous band allocation of bandwidths less than one RBG, and thus enabling improvement in the usage efficiency of the system frequency resources.
- the bands indicated by RIVs are sent with overlapped as shown in FIG. 12 , thereby enabling allocation of a band less than one RBG.
- bands indicated by RIVs are sent with overlapped as shown in FIG. 13 , thereby enabling a band less than one RBG.
- Embodiment 1 makes the allocation unit boundaries of the plurality of RIVs different from each other, and determines bands where the bands indicated by RIVs do not overlap as the allocation bands. This enables the indication of non-contiguous band allocation including the contiguous band allocation of bandwidths less than one RBG, and thus enabling improvement in the usage efficiency of the system frequency resources, thereby enabling improvement in the system performance.
- RIV # 1 can indicate a band beyond one end of the system band and RIV # 2 can also indicate a band to the other end of the system band
- the allocation of the number of clusters (the number of contiguous band blocks) less than the number of RIVs can be indicated, thus enabling resource allocation less than one RBG in a single cluster.
- FIG. 15 is a block diagram illustrating the configuration of terminal 300 according to Embodiment 2 of the present invention, FIG. 15 differs from FIG. 7 in that scheduling information decoding unit 104 and allocation boundary setting unit 107 are replaced with scheduling information decoding unit 301 and allocation boundary setting unit 302 , respectively.
- Scheduling information decoding unit 301 decodes scheduling information output from demodulation unit 103 , and outputs a plurality of RIVs included in the decoded scheduling information to RIV decoding unit 106 of transmission band setting unit 105 . Scheduling information decoding unit 301 also outputs offset information that determines the allocation unit boundaries of each RIV included in the scheduling information from demodulation unit 103 to allocation boundary setting unit 302 .
- Allocation boundary setting unit 302 determines the allocation unit boundaries of each RIV based on the offset information from scheduling information decoding unit 301 , and outputs the determined allocation unit boundaries of each RIV to transmission band determination unit 108 .
- the configuration of the base station according to Embodiment 2 of the present invention is similar to the configuration according to Embodiment 1 shown in FIG. 8 , except that the transmission band setting unit has a different function.
- the transmission band setting unit is similar to transmission band setting unit 105 provided by terminal 300 shown in FIG. 15 .
- the base station first notifies terminal 300 of the offset information of one bit indicating whether or not the allocation unit boundaries of a plurality of RIVs are made different as the scheduling information.
- Terminal 300 determines the allocation unit boundaries of each RIV in allocation boundary setting unit 302 of transmission band setting unit 105 based on the offset information.
- allocation boundary setting unit 302 aligns boundaries without addition of the offsets to the allocation unit boundaries of each RIV.
- transmission band setting unit 105 After determining the allocation boundaries, transmission band setting unit 105 performs similar processing as in Embodiment 1, i.e., determines bands where the bands indicated by a plurality of RIVs do not overlap as allocation bands, and outputs the determined allocation band information to mapping unit 112 .
- the amount of offset may be sent as the offset information. While the number of bits to be sent increases, the degree of freedom of frequency scheduling improves.
- the base station sets, according to the situation, the offset information indicating whether or not allocation unit boundaries of RIVs are made different. That is, when the system band has a large number of contiguous empty resources, aligning the allocation unit boundaries of the plurality of RIVs of each terminal as shown in FIG. 16 facilitates the frequency scheduling of the terminals in a cell using non-contiguous band allocation. In this manner, the frequency scheduling method can easily prevent the occurrence of unnecessary empty resources. On the other hand, when the system band does not have a large number of contiguous empty resources, making the allocation unit boundaries of RIVs as shown in Embodiment 1 can improve the usage efficiency of the system frequency resources.
- Embodiment 2 sets whether or not the allocation unit boundaries of each RIV are made different according to the number of contiguous empty resources existing in the system band.
- aligning the allocation unit boundaries of the plurality of RIVs of each terminal can facilitate the frequency scheduling of the terminals in a cell using the non-contiguous band allocation, thereby enabling prevention of the occurrence of unnecessary empty resources.
- FIG. 17 is a block diagram illustrating the configuration of terminal 400 according to Embodiment 3 of the present invention.
- FIG. 17 differs from FIG. 7 in that RIV decoding unit 106 and allocation boundary setting unit 107 are replaced with RIV decoding unit 401 and allocation boundary setting unit 402 , respectively.
- RIV decoding unit 401 decodes the start RBG# and the end RBG# indicated by each RIV output from scheduling information decoding unit 104 based on the RIV tree shown in FIG. 1 , and outputs the decoded start RBG# and end RBG# to allocation boundary setting unit 402 and transmission band determination unit 108 .
- Allocation boundary setting unit 402 determines the allocation unit boundaries of each RIV based on the start RBG# and the end RBG# output from RIV decoding unit 401 , and outputs the determined allocation unit boundaries of each RIV to transmission band determination unit 108 .
- the configuration of the base station according to Embodiment 3 of the present invention is similar to the configuration of Embodiment 1 shown in FIG. 8 , except that the transmission band setting unit has a different function.
- the transmission band setting unit is similar to transmission band setting unit 105 provided by terminal 400 shown in FIG. 17 .
- Allocation boundary setting unit 402 of transmission band setting unit 105 determines whether making allocation unit boundaries of RIVs different or not depending on whether ranges from the start RBG#s to the end RBG#s of RIVs overlap with each other or not. That is, the offset information is defined according to whether the respective ranges of the RBG numbers indicated by RIVs overlap with each other.
- a predetermined offset is added to the allocation unit boundaries of each RIV to make the boundaries different.
- the method of making the boundaries different to each other is to add a predetermined amount of offset (less than one RBG) to the allocation unit boundaries of each RIV.
- transmission band setting unit After thus determining the allocation boundaries, transmission band setting unit performs similar processing as in Embodiment 1, i.e., determines bands where the bands indicated by a plurality of RIVs do not overlap, as the allocation bands, and outputs the determined allocation band information to the mapping unit.
- Embodiment 3 sends the offset information depending on whether the ranges of the RBG numbers indicated by RIVs overlap with each other or not, thereby making it possible to set whether the allocation unit boundaries of RIVs are made different to each other or not according to the number of the contiguous empty resources existing in the system band, without additional signaling.
- the configuration of terminals and the configuration of a base station according to Embodiment 4 of the present invention are similar to the corresponding configurations according to Embodiment 1 shown in FIG. 7 and FIG. 8 , except that a transmission band setting unit has a different function. Therefore, the transmission band setting unit will now be described.
- Equation 1 “Roundup ( )” indicates the process of rounding up a decimal value in the parentheses. Equation 1 shows that the larger N RBG is, the more the number S of the signaling bits increases.
- the band less than one RBG cannot be allocated in the band where bands indicated by RIVs do not overlap. That is, if the allocation bandwidths that can be indicated by RIVs are limited as shown in FIG. 18 , a band less than one RBG cannot be allocated in the both ends of the system band.
- transmission band determination unit 108 adopts a band that cannot be indicated by RIVs as the central area of the system band. Transmission band determination unit 108 also cyclically shifts RBG# indicated by each RIV in the system band, where the definition of RIV is shared among the terminals and the base stations by being predefined in the system or by being defined at each base station.
- FIG. 19 illustrates an example of the RIV definition described above.
- the band that cannot be indicated by each RIV is set in the central area of the system baud, and each RIV can indicate the corresponding end of the system band.
- Embodiment 4 if the allocation bandwidths that can be indicated by RIVs are limited to the system band or less, the band that cannot be indicated by RIVs is adopted as the central area of the system band, and RBG# (set range of RIV) indicated by each RIV is cyclically shifted in the system band, thereby making it possible to indicate the both ends of the system band using each RIV and thus to improve the usage efficiency of the system frequency resources.
- FIG. 20 illustrates non-contiguous band allocation using three RIVs.
- RBG of RIV # 1 is equal to 4 RB
- RBGs of RIV # 2 and RIV # 3 whose set ranges are part of the system band are equal to 2 RB.
- RBG boundaries of RIV # 1 , RIV # 2 and RIV # 3 are defined so as to be different from one another. Even if PUCCHs each having the allocation granularity of 1 RB are sent at both ends of the system band, the bands indicated by the RIVs are sent with overlapped as shown in FIG. 20 , thereby allocating a band less than one RBG.
- Each function block employed in the description of each of the aforementioned embodiments are typically be implemented as an LSI constituted by an integrated circuit. These may be individual chips or partially or totally contained on a single chip. “LSI” is adopted here but this may also be referred to as “IC,” “system LSI,” “super LSI,” or “ultra LSI” depending on differing extents of integration.
- the method of circuit integration is not limited to LSI's, and implementation using dedicated circuitry or general purpose processors is also possible.
- LSI manufacture utilization of a programmable FPGA (Field Programmable Gate Array) or a reconfigurable processor where connections and settings of circuit cells within an LSI can be reconfigured is also possible.
- FPGA Field Programmable Gate Array
- the present invention can be applied to a case where an antenna port is used.
- the antenna port refers to a logical antenna that is provided with a single or a plurality of physical antennas. That is, the antenna port does not necessarily refer to a single physical antenna, but may refer to, for example, an array antenna formed of a plurality of antennas.
- 3GPP LTE does not define the number of physical antennas that configure the antenna port, but a minimum unit for a base station to transmit a different reference signal.
- the antenna port may also be defined as a minimum unit for multiplication of the weight of a precoding vector.
- the radio transmission apparatus, the radio reception apparatus, and the band allocation method according to the present invention are applicable, for example, to a mobile communication system such as LTE-Advanced.
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Abstract
Description
- R1-090257, Panasonic, “System performance of uplink non-contiguous resource allocation”
NPL 2 - R1-093391, Samsung, “Control Signaling for Non-Contiguous UL Resource Allocations”
S[bit]=Roundup(log2(N RBG(N RBG+1)/2)) (Equation 1)
- 101, 201: Antenna
- 102, 202: RF reception unit
- 103, 210: Demodulation unit
- 104, 301: Scheduling information decoding unit
- 105, 206: Transmission band setting unit
- 106, 401: RIV decoding unit
- 107, 302, 402: Allocation boundary setting unit
- 108: Transmission band determination unit
- 109: Encoding unit
- 110: Modulation unit
- 111, 204: DFT unit
- 112: Mapping unit
- 113, 209: IDFT unit
- 114: CP addition unit
- 115: RF transmission unit
- 203: CP removal unit
- 205: Scheduling information holding unit
- 207: Demapping unit
- 208: Frequency-domain equalization unit
- 211: Decoding unit
Claims (8)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
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JP2010003154 | 2010-01-08 | ||
JP2010-003154 | 2010-01-08 | ||
PCT/JP2011/000043 WO2011083769A1 (en) | 2010-01-08 | 2011-01-07 | Wireless transmission device, wireless reception device, and bandwidth allocation method |
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US20170265180A1 (en) * | 2015-11-10 | 2017-09-14 | Telefonaktiebolaget Lm Ericsson (Publ) | Methods and arrangements for managing allocation of uplink resources regarding remaining data blocks of an uplink transmission |
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US8891471B2 (en) * | 2010-03-19 | 2014-11-18 | Panasonic Intellectual Property Corporation Of America | Wireless communication device, and wireless communication method |
JP6618125B2 (en) * | 2015-05-29 | 2019-12-11 | 華為技術有限公司Huawei Technologies Co.,Ltd. | Resource mapping method and apparatus |
US11419134B2 (en) * | 2016-03-25 | 2022-08-16 | Lg Electronics Inc. | Method for transmitting and receiving uplink signal in wireless communication system supporting non-licensed band, and apparatus for supporting same |
AU2017310731B2 (en) | 2016-08-10 | 2021-10-07 | Ntt Docomo, Inc. | User equipment and radio communication method |
WO2018227578A1 (en) * | 2017-06-16 | 2018-12-20 | Zte Corporation | System and method for allocating resource blocks |
EP3749044A4 (en) * | 2018-02-13 | 2021-01-27 | Huawei Technologies Co., Ltd. | Information transmission method, communication device, and storage medium |
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US20170265180A1 (en) * | 2015-11-10 | 2017-09-14 | Telefonaktiebolaget Lm Ericsson (Publ) | Methods and arrangements for managing allocation of uplink resources regarding remaining data blocks of an uplink transmission |
US10952185B2 (en) * | 2015-11-10 | 2021-03-16 | Telefonaktiebolaget Lm Ericsson (Publ) | Methods and arrangements for managing allocation of uplink resources regarding remaining data blocks of an uplink transmission |
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US20130072242A1 (en) | 2013-03-21 |
JPWO2011083769A1 (en) | 2013-05-13 |
JP5501381B2 (en) | 2014-05-21 |
WO2011083769A1 (en) | 2011-07-14 |
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