JP2009188675A - Radio communication system, base station device, mobile station device and radio communication method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To obtain the excellent frequency diversity effect even at a mobile station device to which a plurality of virtual resource blocks are assigned. <P>SOLUTION: A base station device performing distributed transmission, includes: a resource corresponding section for determining, for each of mobile station devices, a starting position and the number of consecutive blocks in the order of corresponding rules, constituted of combinations of physical resource assignment units for disposing signal groups divided from virtual resource blocks and the order of the combinations, in which physical resource assignment units belonging to a virtual resource block unit set aggregating the plurality of combinations being consecutive in the order are not adjacent to each other in the direction of frequency; an assignment information generating section for generating radio resource assignment information including information representing the starting position and the number of consecutive blocks; and a multiplexing section for multiplexing signals of the virtual resource blocks in accordance with the determination of the resource corresponding section and multiplexing signals transmitting the radio resource assignment information. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a radio communication system, a base station apparatus, a mobile station apparatus, and a radio communication method.

  As a third generation (3G) radio access method of cellular mobile communication, W-CDMA (Wideband Code Division Multiple Access) method has been standardized in 3GPP (3rd Generation Partnership Project), A cellular mobile communication service based on this method has been started. Further, 3G evolution (Evolved Universal Terrestrial Radio Access; hereinafter referred to as “EUTRA”) and 3G network evolution (Evolved Universal Terrestrial Radio Access Network) are being studied.

  As the downlink of EUTRA, an OFDM (Orthogonal Frequency Division Multiplexing) system that is multicarrier transmission has been proposed. In addition, as an uplink of EUTRA, a single carrier communication method of DFT (Discrete Fourier Transform) -Spread OFDM method which is single carrier transmission has been proposed.

  Here, the outline of the channel structure in EUTRA is shown in FIG. The base station device BS1 performs radio communication with the mobile station devices UE1, UE2, and UE3. The downlink of the radio communication from the base station apparatus of EUTRA to the mobile station apparatus includes a downlink pilot channel, a downlink synchronization channel, a broadcast channel, a downlink control channel, a downlink shared data channel, and a control format indicator. And a downlink HARQ (Hybrid Automatic Repeat reQuest) indicator channel. Further, the uplink of radio communication from the mobile station apparatus of EUTRA to the base station apparatus is configured by an uplink pilot channel, a random access channel, an uplink control channel, and an uplink shared data channel.

  FIG. 65 is a diagram illustrating a schematic configuration of a downlink frame in EUTRA (Non-Patent Document 1). The vertical axis represents the frequency domain, and the horizontal axis represents the time domain. The downlink frame is a unit such as radio resource allocation for localized transmission, and is composed of a PRB (Physical Resource Block) pair consisting of a frequency band and a time band of a predetermined width. Basically, one physical resource block PRB pair is composed of physical resource blocks PRB that are continuous in two time domains.

  One physical resource block PRB is composed of 12 subcarriers in the frequency domain, and is composed of 7 OFDM symbols in the time domain. The system bandwidth is a communication bandwidth of the base station device. In the time domain, there are a slot composed of 7 OFDM symbols, a subframe composed of 2 slots, and a radio frame composed of 10 subframes. A unit composed of one subcarrier and one OFDM symbol is called a resource element. In the downlink frame, a plurality of physical resource blocks PRB are arranged according to the system bandwidth.

  In each subframe, at least a downlink shared data channel used for transmitting information data and a downlink control channel used for transmitting control data are arranged. The downlink pilot channel used for channel estimation of the downlink shared data channel and the downlink control channel is not shown, and the description of the arrangement will be described later. In FIG. 65, the downlink control channel is allocated to the first, second, and third OFDM symbols of the subframe, and the downlink shared data channel is allocated to the other OFDM symbols, as indicated by the hatched resource elements. Shows the case. The OFDM symbol in which the downlink control channel is arranged changes in subframe units.

  Although not shown in FIG. 65, the control format indicator channel indicating the number of OFDM symbols constituting the downlink control channel is arranged at a predetermined frequency position of the first OFDM symbol. The downlink control channel is arranged only in the first OFDM symbol, or arranged in the first and second OFDM symbols. Similarly, although not shown in FIG. 65, the downlink HARQ indicator channel is arranged over the first OFDM symbol or the first to third OFDM symbols, and the downlink HARQ indicator channel is assigned to the downlink HARQ indicator channel. The number of OFDM symbols to be arranged and the number of OFDM to arrange one downlink HARQ indicator channel are indicated by a broadcast channel.

  Note that the downlink control channel and the downlink shared data channel are not arranged together in the same OFDM symbol. In the downlink control channel, a mobile station identifier or a mobile station group identifier, radio resource allocation information of the downlink shared data channel, multi-antenna related information, modulation scheme, coding rate, payload size, retransmission parameter, and the like are arranged.

  FIG. 66 is a diagram for explaining the arrangement of downlink pilot channels in one physical resource block PRB pair in the downlink of EUTRA. In FIG. 66, the horizontal axis represents the time domain, and the vertical axis represents the frequency domain. Here, a case where the base station apparatus has four transmission antennas (transmission antenna 1, transmission antenna 2, transmission antenna 3, and transmission antenna 4) will be described. In FIG. 66, R1 represents a resource element of a downlink pilot channel transmitted by the transmission antenna 1, R2 represents a resource element of a downlink pilot channel transmitted by the transmission antenna 2, and R3 represents a downlink transmitted by the transmission antenna 3. The resource element of a pilot channel is represented, R4 represents the resource element of the downlink pilot channel which the transmission antenna 4 transmits.

  When the base station apparatus has only two transmission antennas, the downlink control channel is transmitted in resource elements R3 and R4 in the second OFDM symbol, and the downlink is transmitted in resource elements R3 and R4 in the ninth OFDM symbol. A link shared data channel is transmitted. Note that the base station apparatus having four transmission antennas can adaptively control the transmission of the resource elements R3 and R4 of the downlink pilot channel of the transmission antenna 3 and the transmission antenna 4 in the time domain. That is, the base station apparatus arranges resource elements R3 and R4, which are downlink pilot channels, as described above in a certain subframe, and does not arrange resource elements R3 and R4 in a certain subframe. Only resource elements R1 and R2 are arranged. The downlink pilot channel arrangement information is indicated by a broadcast channel.

  Note that, since it is not related to the present invention, details on the broadcast channel and the downlink synchronization channel are omitted, but the broadcast channel and the downlink synchronization channel are predetermined resource elements of a predetermined subframe. Placed in.

  In EUTRA, a plurality of transmission methods have been studied for the downlink. Based on CQI (Channel Quality Indicator) fed back from the mobile station apparatus to the base station apparatus, the base station apparatus performs radio resource allocation in units of physical resource blocks PRB to mobile station apparatuses with good radio channel quality. Performs centralized transmission (Localized transmission) mainly assuming application of frequency scheduling, and a small amount of data transmission / reception such as a mobile station apparatus moving at high speed, VoIP (Voice over Internet Protocol), TCP ACK (Transmission Control Protocol ACKnowledgement) There is distributed transmission (Distributed transmission) mainly intended for application to mobile station devices that do not perform frequency scheduling, such as station devices. . Centralized transmission is a method in which transmission is performed using subcarriers grouped in physical resource block PRB pairs, and distributed transmission is performed in a time domain and frequency domain in a finer unit than physical resource block PRB pairs over a wide band. In this method, signals are transmitted in a distributed manner.

  A transmission data unit to the mobile station apparatus is referred to as a VRB (Virtual Resource Block), and a transmission data unit to the mobile station apparatus for centralized transmission is referred to as an LVRB (Localized Virtual Resource Block), distributed. A transmission data unit to the mobile station apparatus at the time of transmission is called DVRB (Distributed Virtual Resource Block). A physical resource block PRB pair used for transmission of the distributed virtual resource block DVRB is referred to as a distributed physical resource block DPRB. The number of distributed virtual resource blocks DVRB multiplexed on one distributed physical resource block pair DPRB is referred to as a multiplexing number Nd. In EUTRA, the amount of physical resources used by one distributed virtual resource block DVRB is equal to one distributed physical resource block DPRB (Non-patent Document 2).

  In EUTRA, a time multiplexing method is used as a multiplexing method of the distributed virtual resource block DVRB within the distributed physical resource block DPRB (hereinafter referred to as “distributed virtual resource block DVRB mapping”) (Non-patent Documents 3 and 4). FIG. 67 is a diagram for explaining the distributed virtual resource block DVRB mapping when the multiplexing number Nd is 2. Here, the downlink control channel is arranged in the first to third OFDM symbols of the distributed physical resource block DPRB, and the downlink shared data channel is arranged in the fourth to fourteenth OFDM symbols of the distributed physical resource block DPRB. A case will be described in which downlink pilot channels of four transmission antennas are arranged in the distributed physical resource block DPRB.

  When the multiplexing number Nd is 2, the distributed virtual resource blocks DVRB1 and DVRB2 are arranged in the same distributed physical resource block DPRB (DPRB1 and DPRB2). When the multiplexing number Nd is 2, slot-based hopping is used for time multiplexing of the distributed virtual resource blocks DVRB1 and DVRB2. The distributed virtual resource block DVRB1 includes the fourth to seventh OFDM symbols that are the downlink shared data channel portion of the first slot of the distributed physical resource block DPRB1, and the downlink of the second slot of the distributed physical resource block DPRB2. Signals are arranged in the 8th to 14th OFDM symbols which are shared data channel portions.

  The distributed virtual resource block DVRB2 includes the fourth to seventh OFDM symbols that are the downlink shared data channel portion of the first slot of the distributed physical resource block DPRB2, and the second slot of the distributed physical resource block DPRB1. Signals are arranged in the 8th to 14th OFDM symbols which are downlink shared data channel portions. That is, when the multiplexing number Nd is 2, the distributed virtual resource block DVRB is arranged with a signal in one slot of one distributed physical resource block DPRB and in a different slot in the other distributed physical resource block DPRB.

  FIG. 68 is a diagram for explaining the distributed virtual resource block DVRB mapping when the multiplexing number Nd is 3. Here, the downlink control channel is arranged in the first to third OFDM symbols of the distributed physical resource block DPRB, and the downlink shared data channel is arranged in the fourth to fourteenth OFDM symbols of the distributed physical resource block DPRB. A case will be described in which downlink pilot channels of four transmission antennas are arranged in the distributed physical resource block DPRB.

  When the multiplexing number Nd is 3, the distributed virtual resource blocks DVRB1, DVRB2, and DVRB3 are arranged in the same distributed physical resource block DPRB (DPRB1, DPRB2, and DPRB3). When the multiplexing number Nd is 3, OFDM symbol-based hopping is used for time multiplexing of the distributed virtual resource blocks DVRB1, DVRB2, and DVRB3.

  The distributed virtual resource block DVRB1 includes the fourth, seventh, tenth and thirteenth OFDM symbols of the distributed physical resource block DPRB1, the sixth, ninth and twelfth OFDM symbols of the distributed physical resource block DPRB2, and the distributed physical Signals are arranged in the fifth, eighth, eleventh and fourteenth OFDM symbols of the resource block DPRB3. The distributed virtual resource block DVRB2 includes the fourth, seventh, tenth and thirteenth OFDM symbols of the distributed physical resource block DPRB2, the sixth, ninth and twelfth OFDM symbols of the distributed physical resource block DPRB3, and distributed physical Signals are arranged in the fifth, eighth, eleventh and fourteenth OFDM symbols of the resource block DPRB1. The distributed virtual resource block DVRB3 includes the fourth, seventh, tenth and thirteenth OFDM symbols of the distributed physical resource block DPRB3, the sixth, ninth and twelfth OFDM symbols of the distributed physical resource block DPRB1, and the distributed physical Signals are arranged in the fifth, eighth, eleventh and fourteenth OFDM symbols of the resource block DPRB2.

  That is, when the multiplexing number Nd is 3, the signal of the distributed virtual resource block DVRB is arranged for every 3 OFDM symbols in the distributed physical resource block DPRB. At this time, signals of the same distributed virtual resource block DVRB are arranged every three OFDM symbols from different OFDM symbols in different distributed physical resource blocks DPRB.

  In the distributed virtual resource block DVRB mapping as described above, as the radio resource allocation information indicating the distributed virtual resource block DVRB allocated by the base station apparatus to the mobile station apparatus, the start VRB number (1) indicating the distributed virtual resource block to be allocated first ( (Starting VRB number) and information indicating the number of continuous VRBs (Number of consecutive VRBs) indicating the number of distributed virtual resource blocks to be continuously allocated are arranged in the downlink control channel and notified from the base station apparatus to the mobile station apparatus (Non-patent document 5).

  FIG. 69 shows an example of the distributed virtual resource block DVRB used in the base station apparatus and the mobile station apparatus. Here, a case where 18 virtual resource blocks VRB are configured and all of them are used as distributed virtual resource blocks DVRB is shown. For example, the base station apparatus indicates “5” indicating the distributed virtual resource block DVRB5 as the start VRB number, indicates “2” as the number of continuous VRBs, and notifies the mobile station apparatus as radio resource allocation information. The mobile station apparatus notified of the radio resource allocation information recognizes that two distributed virtual resource blocks, that is, distributed virtual resource blocks DVRB5 and DVRB6, have been allocated from the distributed virtual resource block DVRB5.

  In such distributed virtual resource block DVRB mapping and radio resource allocation information, a rule for associating the distributed virtual resource block DVRB with the physical resource block PRB pair has been proposed (Non-Patent Document 6). In other words, each distributed virtual resource block DVRB corresponds to which physical resource block PRB pair is associated as the distributed physical resource block DPRB. When the multiplexing number Nd = 2, one distributed virtual resource block DVRB is divided and arranged in two physical resource block PRB pairs. When the multiplexing number Nd = 3, one distributed virtual resource block DVRB is divided and arranged in three physical resource block PRB pairs.

  FIG. 70 shows an association rule between the distributed virtual resource block DVRB and the physical resource block PRB pair proposed in Non-Patent Document 6 when the multiplexing number Nd = 2. Here, a case where 18 physical resource blocks PRB are configured in the system bandwidth will be described. In Non-Patent Document 6, association is performed in order from the physical resource block PRB number at the end of the system bandwidth of the first slot to the distributed virtual resource block DVRB number, and then association is performed in the second slot. Two physical resource block PRB pairs to which the same distributed virtual resource block DVRB number is associated are physical resource block PRB pairs that are separated from each other by a fixed number in the frequency direction, and one first slot and the other second The slots are associated with different slots. Here, the above-mentioned fixed number is a value obtained by dividing the number of physical resource blocks PRB configured in the system bandwidth by 2 (multiplex number Nd).

  FIG. 71 shows the correspondence between the distributed virtual resource block DVRB and the physical resource block PRB pair when the multiplexing number Nd = 3 proposed in Non-Patent Document 6. Here, a case where 18 physical resource blocks PRB are configured in the system bandwidth will be described. Each physical resource block PRB pair is divided into three regions as shown in FIG. 68 (for convenience of explanation, regions composed of the fourth, seventh, tenth and thirteenth OFDM symbols in FIG. The region composed of the fifth, eighth, eleventh and fourteenth OFDM symbols is defined as region B, and the region composed of the sixth, ninth and twelfth OFDM symbols is defined as region C).

  In Non-Patent Document 6, the virtual resource block DVRB is associated with the distributed virtual resource block DVRB number in order from the region A of the physical resource block PRB number (physical resource block PRB1 in FIG. 71) at one end of the system bandwidth (distributed virtual resource block in FIG. 71). The resource blocks DVRB1 to DVRB18 are associated). Thereafter, association with the distributed virtual resource block DVRB number is performed again in order from the region B of the physical resource block PRB number (physical resource block PRB7 in FIG. 71) separated by a fixed number from one end of the system bandwidth (distributed in FIG. 71). The virtual resource blocks DVRB1 to DVRB12 are associated).

  Next, after associating with the physical resource block PRB number at the other end (physical resource block PRB18 in FIG. 71), the remaining from the physical resource block PRB number at one end (physical resource block PRB1 in FIG. 71) Is associated with the distributed virtual resource block DVRB number (in FIG. 71, the distributed virtual resource block DVRB13 is associated with DVRB18). Thereafter, correspondence is again made to the distributed virtual resource block DVRB number in order from the region C of the physical resource block PRB number (physical resource block PRB13 in FIG. 71) further separated by a fixed number (in FIG. 71 from the distributed virtual resource block DVRB1 to DVRB6). Make a correspondence).

After association with the physical resource block PRB number at the other end (PRB18 in FIG. 71), correspondence from the physical resource block PRB number at one end (PRB1 in FIG. 71) to the remaining distributed virtual resource block DVRB number (In FIG. 71, association is performed from DVRB7 to DVRB18). The fixed number is a value obtained by dividing the number of physical resource blocks PRB configured in the system bandwidth by 3 (multiplex number Nd).
3GPP TS 36.211-v2.0.0 (2007-09), Physical Channels and Modulation (Release 8) 3GPP TSG RAN1 # 49b, Orlando, Florida-USA, 25-29 June, 2007 R1-072646 “Draft Report of 3GPP TSG RAN WG1 # 49 v0.4.0” 3GPP TSG RAN1 # 50, Athens, Greece, 20-24 August, 2007, R1-073887 “Proposed way forward on distributed DL transmission” 3GPP TSG RAN1 # 50bis, Shanghai, China, 8-12 October, 2007, R1-0774019 “Downlink VRB email reflector summary” 3GPP TSG RAN1 # 51, Jeju, South Korea, 5-9 November, 2007 “Draft Report of 3GPP TSG RAN WG1 # 51 v0.1.0” 3GPP TSG RAN1 # 51, Jeju, South Korea, 5-9 November, 2007, R1-074722 “DL Distributed Resource Signaling for EUTRA”

  However, in the above distributed virtual resource block DVRB mapping, when using the radio resource allocation information using the start VRB number and the number of consecutive VRBs, a plurality of distributed virtual resource blocks DVRB are allocated to one mobile station device. When the number of multiplexing Nd is 2, the same slot is assigned to the mobile station apparatus in the same time domain of adjacent physical resource blocks in the frequency direction, and when the multiplexing number Nd is 3, However, there is a problem that a region where transmission data to the mobile station apparatus is allocated is biased, and a sufficient frequency diversity effect may not be obtained.

  The present invention has been made in view of such circumstances, and an object of the present invention is to provide a radio communication system capable of obtaining an excellent frequency diversity effect even in a mobile station apparatus to which a plurality of distributed virtual resource blocks DVRB are allocated. It is to provide a mobile station apparatus and a base station apparatus.

  The present invention has been made to solve the above-described problems, and a wireless communication system according to the present invention includes a plurality of mobile station apparatuses and a region in which wireless resources are divided by a predetermined width in a frequency direction and a time direction. A predetermined multiplex number of virtual resource blocks composed of data signals destined for the mobile station apparatus having a data amount that can be transmitted in a physical resource allocation unit, which is an area serving as an allocation unit of data to be transmitted to the mobile station apparatus. Are arranged in the physical resource allocation unit of the multiplex number distributed in the frequency direction, so that the signal of the multiplex number divided from the different virtual resource blocks is allocated to each physical resource allocation unit. And a base station apparatus that performs distributed transmission for transmitting a signal in which a group is multiplexed. A correspondence rule comprising a combination of the physical resource allocation units for arranging the signal groups divided from the same virtual resource block, and an order of the virtual resource block, Arrangement of signals of the virtual resource blocks belonging to the virtual resource block unit set in at least a part of the virtual resource block unit set among the virtual resource block unit sets in which the plurality of virtual resource blocks that are consecutive in sequence are collected Determining, for each mobile station apparatus subject to distributed transmission, the start position and the number of continuations in the order in which the physical resource allocation unit is not adjacent to each other in the frequency direction. The physical resource used for distributed transmission of virtual resource blocks addressed to the device. A radio resource including at least a resource allocation unit for determining a resource allocation unit, a time domain in each physical resource allocation unit, and information indicating a start position and a continuous number of the order in the rule determined by the correlation unit Multiplexing that multiplexes the signal of the virtual resource block addressed to the mobile station apparatus and the signal that transmits the radio resource allocation information according to the decision of the allocation information generating unit that generates resource allocation information and the resource association unit The mobile station apparatus detects, from the received signal, a region in which a virtual resource block signal addressed to the mobile station apparatus is arranged based on the received radio resource allocation information and the rule. And a multiplex that extracts a signal of a virtual resource block addressed to the mobile station device based on a detection result of the control unit And a separation unit.

  Further, the wireless communication system of the present invention is the above-described wireless communication system, wherein the rule includes, in the virtual resource block unit set in which the combinations in which the order is continuous are grouped for each predetermined number of sets. The physical resource allocation units constituting the combination to which the combinations belong are rules that are not adjacent to each other in the frequency direction.

  Also, the wireless communication system of the present invention is the above-described wireless communication system, wherein the rule is any of the communication bandwidths for the physical resource allocation unit within the communication bandwidth managed by the base station device. Numbering in order from the physical resource allocation unit at one end in the frequency direction, determining the total number of virtual resource blocks according to the total number of the physical resource allocation units numbered, and representing the order of each virtual resource block A second step of assigning a virtual resource block unit to an ordered set in which the number of multiplexed virtual resource blocks separated by a value obtained by dividing the total number of the virtual resource blocks by the number of multiplexed is combined And the virtual resource having the smallest sum of the numbers of the virtual resource blocks constituting the virtual resource block unit. A third step in which numbering is performed in order from the block unit, and a fourth step in which a set of virtual resource block units having a predetermined number of consecutive numbering numbers in the third step is set as a virtual resource block unit set And a fifth step in which an ordered set of virtual resource block units extracted and arranged in a predetermined order from the virtual resource block unit set is defined as a first virtual resource block unit group, and the first virtual resource A sixth step in which an ordered set of virtual resource block units in which the order of virtual resource blocks in all the virtual resource block units constituting the block unit group is changed is a virtual resource block unit group different from the first; The virtual resource The virtual resource generated by the seventh step of associating the block unit groups with physical resource allocation units continuous in the frequency direction of the number of virtual resource block units constituting each virtual resource block unit group so as not to overlap each other. The rule is composed of a combination of a virtual resource block constituting a block unit group and the physical resource allocation unit, and an order of the virtual resource block.

  The wireless communication system of the present invention is the above-described wireless communication system, wherein the fifth step is a virtual resource block having a smallest sum of the numbers of virtual resource block units constituting each virtual resource block unit set. Numbering is performed in order from the unit set, and one virtual resource block having the earliest order in the virtual resource block unit set is extracted from the virtual resource block unit set in the order of the numbered numbers, Until the resource block is extracted, it is repeated for all the virtual resource block unit sets, and an ordered set of the virtual resource block units in which the virtual resource blocks are arranged in the extraction order is defined as a first virtual resource block unit group. Do Characterized in that it is a step.

  The wireless communication system of the present invention is the above-described wireless communication system, wherein the order of the virtual resource blocks in the virtual resource block unit is associated with a predetermined time domain, and the multiplexing unit is The virtual resource block signal is time-multiplexed to the physical resource allocation unit by arranging the virtual resource block signal in the associated time domain.

  The wireless communication system of the present invention is the above-described wireless communication system, wherein the predetermined number of sets is set according to the total number of physical resource allocation units that can be arranged in a frequency direction. .

  The wireless communication system of the present invention is the above-described wireless communication system, wherein the predetermined number of sets is set according to the number of multiplexing.

  The wireless communication system of the present invention is the above-described wireless communication system, wherein the predetermined number of sets is set according to the number of transmission antennas.

  The radio communication system of the present invention is the above-described radio communication system, wherein the base station apparatus includes information indicating the predetermined number of sets in a broadcast channel and transmits the information to the mobile station apparatus. And

  The radio communication system of the present invention is the radio communication system described above, wherein the number of virtual resource block unit groups different from the first generated in the seventh step is a number corresponding to the multiplexing number. It is characterized by being.

  The radio communication system according to the present invention is the radio communication system described above, wherein a total number of the virtual resource blocks is equal to or less than a total number of the physical resource allocation units that can be arranged in a frequency direction and is divisible by the multiplexing number. It is characterized by being set to.

  The wireless communication system according to the present invention is the above-described wireless communication system, wherein the number of virtual resource block unit groups different from the first generated in the sixth step is subtracted from the multiplexing number. And the seventh step is between the physical resource allocation unit groups associated with the virtual resource block unit group when the virtual resource block unit group is associated with the physical resource allocation unit. The total number of physical resource allocation units to which the virtual resource block is not associated, the total number of physical resource allocation units within the communication bandwidth minus the total number of virtual resource blocks. So that the virtual resource block unit group is the physical resource allocation unit. Is a step to be associated with.

  Also, the base station apparatus of the present invention is an area where radio resources are divided by a predetermined width in the frequency direction and the time direction, and is an area that is an area for assigning data to be transmitted to the mobile station apparatus. The physical resource allocation unit of the multiplex number in which each signal group obtained by dividing a virtual resource block consisting of data signals addressed to the mobile station apparatus with a data amount that can be transmitted in units into a predetermined multiplex number is distributed in the frequency direction In the base station apparatus that performs distributed transmission for transmitting a signal obtained by multiplexing the multiplex number signal group divided from the different virtual resource blocks in each physical resource allocation unit, the multiplex number of the multiplex number A combination of the physical resource allocation units for arranging the signal group divided from the same virtual resource block, In a rule of correspondence consisting of the order of resource blocks, in a virtual resource block unit set in which a plurality of virtual resource blocks in which the order is continuous are collected, in at least some virtual resource block unit sets, The start position and the number of continuations in the rule in which the physical resource allocation units in which signals of the virtual resource blocks belonging to the virtual resource block unit set are not adjacent to each other in the frequency direction are subject to distributed transmission. By determining for each of the mobile station apparatuses that are present, the resource association unit that determines the physical resource allocation unit used when the virtual resource block addressed to the mobile station apparatus is distributed and the time domain in each physical resource allocation unit is determined. And the rules determined by the association unit A virtual resource block signal addressed to the mobile station device according to the determination of the resource allocation unit, an allocation information generation unit that generates radio resource allocation information including at least information indicating the start position of the order and the continuous number And a multiplexing unit that multiplexes a signal for transmitting the radio resource allocation information.

  Also, the mobile station apparatus of the present invention is an area in which radio resources are divided by a predetermined width in the frequency direction and the time direction, and is an area that becomes an allocation unit of data to be transmitted to the mobile station apparatus. A signal group obtained by dividing a virtual resource block made up of a data signal addressed to a mobile station apparatus with a data amount that can be transmitted in units into a predetermined multiplex number is assigned to the physical resource allocation unit of the multiplex number distributed in the frequency direction. In the mobile station apparatus that receives a distributed signal that transmits a signal obtained by multiplexing the multiplex number of signal groups divided from different virtual resource blocks in each physical resource allocation unit, A combination of physical resource allocation units in which the signal groups divided from the same virtual resource block are arranged. And at least some of the virtual resource blocks of the virtual resource block unit set in which a plurality of the virtual resource blocks in which the order is continuous are collected. In the unit set, the rule that the physical resource allocation units for arranging the signals of the virtual resource block belonging to the virtual resource block unit set are not adjacent to each other in the frequency direction, and the received radio resource allocation information, the rule A control unit for detecting a region where a signal of a virtual resource block addressed to the mobile station device is arranged from a received signal based on the start position of the order and the radio resource allocation information indicating the number of consecutive in Virtual resource addressed to the mobile station Characterized by comprising a demultiplexer for extracting a signal of the block.

  Also, the radio communication method of the present invention is an area in which a plurality of mobile station apparatuses and radio resources are divided by a predetermined width in the frequency direction and the time direction, and an allocation unit of data to be transmitted to the mobile station apparatus Each of signal groups obtained by dividing a virtual resource block composed of a data signal addressed to the mobile station apparatus with a data amount that can be transmitted in a physical resource allocation unit that is an area to be divided into a predetermined multiplex number is distributed in the frequency direction. A base station that performs distributed transmission for transmitting a signal obtained by multiplexing the multiplex number signal group divided from the different virtual resource blocks in each physical resource allocation unit by arranging the multiplex number in the physical resource allocation unit. In the wireless communication method in the wireless communication system comprising the device, the base station device is the same number of the multiplex number of the signal groups. A plurality of virtual resources, each of which is a correspondence rule composed of a combination of the physical resource allocation units in which the signal group divided from resource blocks is arranged and the order of the virtual resource blocks, the order being continuous Among the virtual resource block unit sets in which the blocks are grouped, in at least some of the virtual resource block unit sets, the physical resource allocation units for arranging the signals of the virtual resource blocks belonging to the virtual resource block unit set are mutually in the frequency direction. When the virtual resource block addressed to the mobile station device is distributedly transmitted by determining the start position and the number of continuations in the non-adjacent rule for each of the mobile station devices targeted for distributed transmission. And the physical resource allocation unit used for the A radio resource including at least a first process for determining a time domain in each unit, and information indicating a start position and a continuous number of the order in the rule determined by the base station apparatus in the first process A second process of generating allocation information, and the base station apparatus multiplexes virtual resource block signals addressed to the mobile station apparatus and transmits the radio resource allocation information according to the determination in the first process. Based on the third process of multiplexing the signal and transmitting the multiplexed signal, and the mobile station apparatus receiving the radio resource allocation information and the rule, the virtual resource addressed to the mobile station apparatus is received from the received signal. A fourth process of detecting an area in which a block signal is arranged, and the mobile station apparatus is addressed to the mobile station apparatus based on a detection result of the fourth process. And a fifth step of extracting signals of all virtual resource blocks.

  According to the present invention, the association rule consisting of a combination of physical resource allocation units for arranging signal groups divided from the same virtual resource block and the order of the virtual resource block is the order of the virtual resource blocks. In at least some virtual resource block unit sets in which a plurality of consecutive combinations are collected, physical resource allocation units associated with the distributed virtual resource block DVRB units belonging to the distributed virtual resource block DVRB unit set are mutually in the frequency direction Physical resource allocation in which virtual resource block signals are arranged even in a mobile station apparatus to which a plurality of virtual resource blocks having consecutive orders are assigned by specifying the start position and the number of consecutive orders. Units are not adjacent to each other in the frequency direction. For this reason, even for a mobile station apparatus to which a plurality of virtual resource blocks are allocated, it is possible to prevent a bias from occurring in the area to which the virtual resource block signal addressed to the mobile station apparatus is allocated, and to obtain an excellent frequency diversity effect. be able to.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. The wireless communication system according to the present embodiment includes a base station device 1 and a plurality of mobile station devices 2 that communicate with the base station device 1. In the present embodiment, the present invention is applied to the downlink transmitted from the base station apparatus 1 to the mobile station apparatus 2, and the transmission process in the base station apparatus 1 and the reception process in the mobile station apparatus 2 will be described below. .

  FIG. 1 is a diagram schematically illustrating the channel structure in the wireless communication system according to the present embodiment. The base station device 1 performs wireless communication with a plurality of mobile station devices 2. The downlink of radio communication from the base station apparatus 1 to the mobile station apparatus 2 includes a downlink pilot channel, a downlink synchronization channel, a broadcast channel, a downlink control channel, a downlink shared data channel, a control format indicator channel, It comprises a downlink HARQ (Hybrid Automatic Repeat reQuest) indicator channel. Further, the uplink of radio communication from the mobile station apparatus 2 to the base station apparatus 1 includes an uplink pilot channel, a random access channel, an uplink control channel, and an uplink shared data channel.

  FIG. 2 is a diagram illustrating a schematic configuration of a downlink frame in the present embodiment. In FIG. 2, the vertical axis represents the frequency domain, and the horizontal axis represents the time domain. The downlink frame is a unit such as radio resource allocation for localized transmission, and is a physical resource block PRB pair (physical resource allocation unit) that is an area obtained by dividing radio resources by a predetermined width in the frequency direction and the time direction. ). Basically, one physical resource block PRB pair is composed of two physical resource blocks PRB that are continuous in the time domain.

  One physical resource block PRB is composed of 12 subcarriers in the frequency domain, and is composed of 7 OFDM symbols in the time domain. The system bandwidth is a communication bandwidth of the base station device 1. In the time domain, there are a slot composed of 7 OFDM symbols, a subframe composed of 2 slots, and a radio frame composed of 10 subframes. A unit composed of one subcarrier and one OFDM symbol is called a resource element. In the downlink frame, a plurality of physical resource blocks PRB are arranged according to the system bandwidth.

  In each subframe, at least a downlink shared data channel used for transmitting information data and a downlink control channel used for transmitting control data are arranged. The downlink pilot channel used for channel estimation of the downlink shared data channel and the downlink control channel is not shown, and the description of the arrangement will be described later. FIG. 2 shows a case where the downlink control channel is arranged in the first, second and third OFDM symbols of the subframe, and the downlink shared data channel is arranged in other OFDM symbols. The OFDM symbol in which the control channel is arranged varies in subframe units.

  Although not shown in FIG. 2, the control format indicator channel indicating the number of OFDM symbols constituting the downlink control channel is arranged at a predetermined frequency position of the first OFDM symbol, and the downlink control channel Are arranged only in the first OFDM symbol, or are arranged in the first and second OFDM symbols. Similarly, although not shown in FIG. 2, the downlink HARQ indicator channel is arranged over the first OFDM symbol or the first to third OFDM symbols, and the downlink HARQ indicator channel is assigned to the downlink HARQ indicator channel. The number of OFDM symbols to be arranged and the number of OFDM to arrange one downlink HARQ indicator channel are indicated by a broadcast channel.

  Note that the downlink control channel and the downlink shared data channel are not arranged together in the same OFDM symbol. In the downlink control channel, a mobile station identifier or a mobile station group identifier, radio resource allocation information of the downlink shared data channel, multi-antenna related information, modulation scheme, coding rate, payload size, retransmission parameter, and the like are arranged.

  FIG. 3 is a diagram for explaining the arrangement of the downlink pilot channels in the physical resource block PRB pair in the downlink according to the present embodiment. In FIG. 3, the horizontal axis represents the time domain, and the vertical axis represents the frequency domain. Here, a case where the base station apparatus 1 has four transmission antennas (transmission antenna 1, transmission antenna 2, transmission antenna 3, and transmission antenna 4) will be described. In FIG. 3, R1 represents a resource element of a downlink pilot channel transmitted by the transmission antenna 1, R2 represents a resource element of a downlink pilot channel transmitted by the transmission antenna 2, and R3 represents a downlink transmitted by the transmission antenna 3. The resource element of a pilot channel is represented, R4 represents the resource element of the downlink pilot channel which the transmission antenna 4 transmits.

  Note that, since it is not related to the present invention, details on the broadcast channel and the downlink synchronization channel are omitted, but the broadcast channel and the downlink synchronization channel are predetermined resource elements of a predetermined subframe. Placed in.

  FIG. 4 is a schematic block diagram showing the configuration of the base station apparatus 1 in the embodiment of the present invention. The base station device 1 divides each of the signal groups obtained by dividing the virtual resource block DVRB composed of data signals addressed to the mobile station device 2 having a data amount that can be transmitted by the physical resource block PRB pair into a predetermined multiplex number in the frequency direction. By arranging the distributed physical resource block PRB pairs in multiple distributed physical resource block PRB pairs, distributed transmission is performed in which a signal obtained by multiplexing a multiple number of signal groups divided from different virtual resource blocks DVRB is transmitted to each physical resource block PRB pair.

  As illustrated in FIG. 4, the base station apparatus 1 includes a radio resource control unit 10, a control unit 11, a transmission processing unit 12, and a reception processing unit 13. The radio resource control unit 10 manages intermittent transmission / reception cycles with the mobile station apparatus 2, modulation scheme / coding rate, transmission power, radio resource allocation, the number of OFDM symbols constituting a downlink control channel, multiplexing, and the like. Control information for instructing the contents is output to the control unit 11, and is notified as control data to the mobile station apparatus 2 through the control unit 11 and the transmission processing unit 12.

  The radio resource control unit 10 includes a resource association unit 14 and an allocation information generation unit 15. The resource association unit 14 uses, for each mobile station apparatus 2 that is a target of distributed transmission, physical resource blocks used when distributed virtual resource blocks DVRB (virtual resource blocks) addressed to these mobile station apparatuses 2 are distributed and transmitted. The time domain in each PRB pair and its physical resource block PRB pair is determined. The resource association unit 14 makes this determination based on the distributed transmission target, the start position of the order of the distributed virtual resource block DVRB and the continuous number in the rule for associating the distributed virtual resource block DVRB with the physical resource block PRB pair. This is performed by determining each mobile station apparatus 2 that is configured.

  The rules for associating the distributed virtual resource block DVRB with the physical resource block PRB pair are a combination of a physical resource block PRB pair in which multiple signal groups divided from the same virtual resource block DVRB are arranged, and this combination. That is, the rule of the order of the virtual resource block DVRB in which the signal is arranged in this combination. This association rule in the present embodiment is a virtual resource block unit set (virtual resource block) in which distributed virtual resource blocks DVRB units (virtual resource block units) to which a plurality of distributed virtual resource blocks DVRB that are consecutive in order belong are grouped. In the unit set), physical resource block PRB pairs in which signals of the distributed virtual resource block DVRB belonging to the virtual resource block unit set are associated with each other so as not to be adjacent to each other in the frequency direction.

  The allocation information generation unit 15 generates radio resource allocation information including at least information indicating the start position of the order of the distributed virtual resource block DVRB and the number of continuations determined by the resource association unit 14. This radio resource allocation information is output to the control unit 11 by the radio resource control unit 10 as a part of the control information described above, and is also notified as control data to the mobile station apparatus 2 through the control unit 11 and the transmission processing unit 12. The

  The control unit 11 outputs control signals to the transmission processing unit 12 and the reception processing unit 13 in order to control the transmission processing unit 12 and the reception processing unit 13 based on the control information input from the radio resource control unit 10. To do. Based on the output of this control signal, the control unit 11 controls the transmission / reception signal modulation scheme, coding rate setting, setting of the number of OFDM symbols constituting the downlink control channel, setting of allocation of each channel to resource elements, and the like. The transmission processing unit 12 and the reception processing unit 13 are performed. In addition, the control unit 11 generates control data to be arranged in the downlink control channel and instructs the transmission processing unit 12 to perform transmission. Further, the control unit 11 generates control data to be arranged in the downlink shared data channel instead of the downlink control channel, and instructs the transmission processing unit 12 to perform transmission as data together with information data.

  The transmission processing unit 12 is based on the control signal and control data input from the control unit 11 and the information data input from the outside, and a downlink control channel, a downlink shared data channel, a downlink pilot channel, a control format indicator channel Is generated, and each channel is multiplexed into a downlink frame and transmitted to each mobile station apparatus 2 via, for example, four transmission antennas. In addition, since it is not directly related to the present invention, detailed description of the processing related to the broadcast channel, the downlink synchronization channel, and the downlink HARQ indicator channel is omitted.

  The reception processing unit 13 receives reception of the uplink control channel, the uplink shared data channel, the uplink pilot channel, and the random access channel transmitted by each mobile station apparatus 2 based on the control signal input from the control unit 11 as a receiving antenna. Do through. In addition, since it is not directly related to the present invention, a detailed description of the uplink processing (reception processing unit 13) is omitted.

  FIG. 5 is a schematic block diagram illustrating an internal configuration of the transmission processing unit 12 of the base station apparatus 1 in the present embodiment. The transmission processing unit 12 of the base station apparatus 1 includes a plurality of downlink shared data channel processing units 210, a plurality of downlink control channel processing units 220, a reference signal (downlink pilot channel) generation unit 230, and a control format indicator. A signal generation unit 240, a multiplexing unit 250, and a plurality of transmission antenna processing units 260 are provided. Since the plurality of downlink shared data channel processing units 210, the plurality of downlink control channel processing units 220, and the plurality of transmission antenna processing units 260 have the same configuration and functions, only one of them will be described as a representative.

  The downlink shared data channel processing unit 210 performs processing for generating a downlink shared data channel signal. That is, each downlink shared data channel processing unit 210 receives information data addressed to any one of the mobile station apparatuses 2 from the outside, and further receives control data from the control unit 11, and these information data and control data ( Hereinafter, baseband processing for transmitting information data and control data together (referred to as “data”) in the OFDM scheme is performed, and the signal of the distributed virtual resource block DVRB transmitted to the mobile station apparatus 2 by this baseband processing Is generated. The downlink shared data channel processing unit 210 includes a turbo coding unit 211 and a data modulation unit 212.

  The turbo coding unit 211 performs error correction coding using a turbo code to increase error tolerance of input data in accordance with a coding rate instruction by a control signal from the control unit 11. The data modulation unit 212 includes a QPSK (Quadrature Phase Shift Keying), 16QAM (16 Quadrature Amplitude Modulation), 64QAM (64 Quadrature Amplitude Modulation value such as 64 Quadrature Amplitude Modulation value). Of the modulation schemes, data modulated by error correction coding by the turbo coding unit 211 is modulated by a modulation method designated by a control signal from the control unit 11 to generate a transmission signal and output to the multiplexing unit 250.

  The downlink control channel processing unit 220 performs processing for generating a downlink control channel signal. That is, each downlink control channel processing unit 220 receives control data addressed to any one mobile station apparatus 2 from the control unit 11 and performs baseband processing for transmitting this control data in the OFDM scheme. By this baseband processing, a signal including radio resource allocation information of the distributed virtual resource block DVRB addressed to the mobile station apparatus 2 is generated.

  The downlink control channel processing unit 220 includes a convolutional code unit 221 and a QPSK modulation unit 222. The convolutional code unit 221 performs error correction coding on the control data input from the control unit 11 using a convolutional code for increasing error tolerance. The QPSK modulation unit 222 modulates the control data that has been subjected to error correction coding by the convolutional coding unit 221 using the QPSK modulation method, and generates a transmission signal.

  The reference signal generation unit 230 generates a reference signal to be transmitted through each transmission antenna on the downlink pilot channel. The control format indicator signal generator 240 is a signal of information indicating the number of OFDM symbols constituting the downlink control channel, and generates a control format indicator signal to be transmitted on the control format indicator channel.

  The multiplexing unit 250 outputs a data transmission signal (downlink shared data channel signal) output to the downlink shared data channel processing unit 210 and addressed to each mobile station apparatus 2 that has been subjected to processing such as encoding and modulation, and downlink control. The control signal output from the channel processing unit 220 is transmitted as a control signal transmitted from the control unit 11 such as a transmission signal of control data (downlink control channel signal), a control format indicator signal, and a reference signal. Based on this, each transmission antenna is arranged in a resource element. That is, the multiplexing unit 250 determines the virtual resource block DVRB addressed to the mobile station device 2 for the downlink shared data channel signal addressed to the mobile station device targeted for distributed transmission according to the determination of the resource association unit 14. A signal is multiplexed and a signal for transmitting radio resource allocation information is multiplexed.

  Regarding the downlink shared data channel signal constituting the signal of the distributed virtual resource block DVRB, the signal arrangement to the resource element in the physical resource block PRB pair is slot-based hopping (switching in slot units when the multiplexing number Nd is 2, (Slot-based hopping), and when the multiplexing number Nd is 3, OFDM symbol-based hopping (OFDM symbol-based hopping) that switches in units of OFDM symbols is used.

  Here, regarding the association rule between the physical resource block PRB pair and the distributed virtual resource block DVRB, which association rule is used is determined by the radio resource control unit 10, and the association input via the control unit 11 Based on the control information indicating the rule and the distributed virtual resource block DVRB number, the multiplexing unit 250 arranges the signal of the distributed virtual resource block DVRB in the physical resource block PRB. Details of the association rule between the physical resource block PRB pair and the distributed virtual resource block DVRB will be described later.

  The transmission antenna processing unit 260 receives a signal transmitted from the transmission antenna to which the transmission antenna processing unit 260 is connected among the signals multiplexed by the multiplexing unit 250 for each transmission antenna, and performs inverse Fourier transform and guard interval. Insertion, digital / analog conversion, up-conversion, etc. are performed, and transmission is performed via the connected transmission antenna. Each transmission antenna processing unit 260 includes an IFFT (Inverse Fast Fourier Transform) unit 261, a GI (Guard Interval) guard unit (262), a D / A (digital / analog conversion) unit 263, and a transmission unit. An RF (Radio Frequency) unit 264 is provided.

  The IFFT unit 261 performs fast inverse Fourier transform on the signal input from the multiplexing unit 250 and performs modulation in the OFDM scheme. The GI insertion unit 262 generates a symbol in the OFDM scheme by adding a guard interval to the OFDM-modulated signal. The guard interval is obtained by a known method of duplicating a part of the beginning or end of a symbol to be transmitted. The D / A unit 263 converts the baseband digital signal input from the GI insertion unit 262 into an analog signal.

  The transmission RF unit 264 generates an in-phase component and a quadrature component of the intermediate frequency from the analog signal input from the D / A unit 263, removes excess frequency components for the intermediate frequency band, and converts the intermediate frequency signal to a high frequency. The signal is converted (up-converted) into a (radio frequency) signal, an extra frequency component is removed, the power is amplified, and the signal is output to a connected transmission antenna. In this embodiment, the IFFT unit 261, the GI insertion unit 262, the D / A unit 263, and the transmission RF unit 264 function as a transmission unit. The base station apparatus 1 includes as many transmission units as the number of transmission antennas used for transmission, that is, four in this embodiment, and each transmission unit outputs a signal for each transmission antenna output from the multiplexing unit 250. To process.

  FIG. 6 is a schematic block diagram showing the configuration of the mobile station apparatus 2 in the embodiment of the present invention. As illustrated in FIG. 6, the mobile station device 2 includes a control unit 20, a reception processing unit 21, and a transmission processing unit 22. The reception processing unit 21 performs reception processing on the signals of the downlink control channel, the downlink shared data channel, the downlink pilot channel, and the control format indicator channel received from the base station apparatus 1 via the reception antenna. The control unit 20 controls the reception processing unit 21 and the transmission processing unit 22 based on the control data notified from the base station apparatus 1 using the downlink control channel and the downlink shared data channel.

  Further, the control unit 20 is notified from the base station apparatus 1 of the association rule (association rule) between the distributed virtual resource block DVRB and the physical resource block PRB based on the system bandwidth (the number of physical resource blocks PRB). Radio resource allocation information of distributed virtual resource block DVRB mapping addressed to the mobile station apparatus 2 (starting VRB number; Starting VRB number, number of consecutive VRBs; Number of consecutive VRBs), addressed to own mobile station apparatus 2 based on the control format indicator The resource element in which the distributed transmission signal is arranged is detected, and a control signal for extracting the received signal of these resource elements is output to the reception processing unit 21. A method for detecting a resource element in which a signal distributed and transmitted to the mobile station apparatus 2 is arranged will be described later.

  Based on the input from the control unit 20, the transmission processing unit 22 transmits an uplink control channel, an uplink shared data channel, an uplink pilot channel, and a random access channel via a transmission antenna. In addition, since it is not directly related to the present invention, a detailed description of the uplink processing (transmission processing unit 22) is omitted.

  FIG. 7 is a schematic block diagram showing an internal configuration of the reception processing unit 21 of the mobile station apparatus 2 in the present embodiment. The reception processing unit 21 of the mobile station apparatus 2 includes a reception RF unit 401, an A / D (analog / digital conversion) unit 402, a GI removal unit 403, an FFT (Fast Fourier Transform) unit 404, Demultiplexing section 405, propagation path estimation section 406, propagation path compensation section 407, control format indicator detection section 408, propagation path compensation section 409, QPSK demodulation section 410, Viterbi decoder section 411, propagation path compensation A unit 412, a data demodulator 413, and a turbo decoder 414. In the present embodiment, the reception RF unit 401, the A / D unit 402, the GI removal unit 403, and the FFT unit 404 function as a reception unit.

  The reception RF unit 401 amplifies the signal received via the reception antenna, converts it to an intermediate frequency (down-conversion), removes unnecessary frequency components, and controls the amplification level so that the signal level is properly maintained. Then, quadrature demodulation is performed based on the in-phase component and the quadrature component of the received signal. The A / D unit 402 converts the analog signal quadrature demodulated by the reception RF unit 401 into a digital signal. The GI removal unit 403 removes a portion corresponding to the guard interval from the digital signal output from the A / D unit 402. The FFT unit 404 performs fast Fourier transform on the signal input from the GI removal unit 403, and performs OFDM demodulation.

  Based on the instruction by the control signal input from the control unit 20, the demultiplexing unit 405 performs a downlink pilot channel, a control format indicator channel, a downlink signal from the signal that has been Fourier transformed by the FFT unit 404, that is, the received signal demodulated by the OFDM method. A link shared data channel and a downlink control channel are extracted from the allocated resource elements and output.

  Specifically, the demultiplexing unit 405 extracts the downlink pilot channel and the control format indicator channel having a fixed arrangement, outputs the downlink pilot channel to the propagation path estimation unit 406, and the control format indicator channel propagates. Output to the path compensation unit 407. Further, the demultiplexing unit 405 is based on the information (number of OFDM symbols constituting the downlink control channel) included in the control format indicator channel input to the control unit 11 and output to the propagation path compensation unit 407 previously. The downlink control channel is extracted and output to the propagation path compensation unit 409.

  Further, the demultiplexing unit 405 receives the downlink addressed to the mobile station apparatus 2 based on the radio resource allocation information included in the downlink control channel output to the propagation path compensation unit 409 previously input via the control unit 20. The link shared data channel is extracted and output to the propagation path compensation unit 412. The demultiplexing unit 405 performs the movement based on the signal arrangement by the multiplexing unit 250 of the base station apparatus 1 from the distributed multiplexed downlink data channel, that is, the signal multiplexed on the downlink shared data channel of the physical resource block PRB. A signal addressed to the station apparatus 2 is extracted. This extraction method (a method for detecting a resource element in which a signal of the distributed virtual resource block DVRB is arranged) will be described later.

  The propagation path estimation unit 406 estimates propagation path fluctuations for each transmission antenna of the base station apparatus 1 based on the reception result of the known reference signal arranged in the downlink pilot channel separated by the demultiplexing unit 405, and the propagation path Outputs compensation value. The propagation path compensation units 407, 409, and 412 compensate for propagation path fluctuations of the input signal based on the propagation path fluctuation compensation value from the propagation path estimation unit 406. The control format indicator detection unit 408 is a control format indicator indicating the number of OFDM symbols that constitute the downlink control channel from the signal arranged in the control format indicator channel for which propagation path fluctuation compensation has been performed by the propagation path compensation unit 407. Information is detected and output to the control unit 20.

  The data demodulating unit 413 demodulates the downlink shared data channel in which propagation path fluctuation is compensated by the propagation path compensating unit 412. This demodulation is performed corresponding to the modulation method used in the data modulation unit 212 of the base station apparatus 1, and this modulation method is instructed by a control signal from the control unit 20. The turbo decoding unit 414 decodes the downlink shared data channel demodulated by the data demodulation unit 413 to obtain information data and control data. This decoding is performed corresponding to the coding rate used in the turbo coding unit 211 of the base station apparatus 1, and this coding rate is indicated by a control signal from the control unit 20.

  The QPSK demodulator 410 performs QPSK demodulation of the downlink control channel in which propagation path fluctuation is compensated by the propagation path compensation unit 409. The Viterbi decoder unit 411 decodes the downlink control channel demodulated by the QPSK demodulation unit 410. The control data arranged in the downlink control channel decoded by the Viterbi decoder unit 411 is input to the control unit 20. The control unit 20 acquires, from the control data, radio resource allocation information indicating the allocation of the downlink shared data channel addressed to the mobile station apparatus 2, and information indicating the modulation scheme and coding rate of the downlink shared data channel. Then, the control signal for separating the downlink shared data channel addressed to the mobile station apparatus 2 designated by these pieces of information is output to the demultiplexing unit 405, and the control signal to be demodulated similarly by the designated modulation method is data. A control signal that is output to the demodulation unit 413 and similarly decoded at the specified coding rate is output to the turbo decoding unit 414.

  The radio resource allocation information of the mobile station device 2 distributed using the distributed virtual resource block DVRB has at least information indicating the starting VRB number (Starting VRB number) and the number of consecutive VRBs (Number of consecutive VRBs). . The start VRB number indicates the first distributed virtual resource block DVRB number assigned to the mobile station apparatus 2. For example, if a maximum of 18 distributed virtual resource blocks DVRB can be arranged in the system bandwidth, at least 5 bits (32 states) are required to represent the start VRB number. The number of consecutive VRBs indicates the number of DVRBs allocated continuously from the start VRB number. For example, when the number of DVRBs continuously allocated in the wireless communication system in the present embodiment is up to 2, the number of continuous VRBs is 1 bit (two states) at the minimum, and the number of DVRBs continuously allocated in the wireless communication system is three. In such a case, the number of continuous VRBs is composed of 2 bits (4 states) at a minimum.

  Next, an association rule between the distributed virtual resource block DVRB and the physical resource block PRB pair, that is, a combination of physical resource block PRB pairs in which a signal group divided from the virtual resource block DVRB is arranged, and a rule of the order of the combination The creation method will be described in the order of execution divided into the first to seventh steps. In the first step (first step), all physical resource blocks PRB of the system bandwidth are numbered with PRB numbers in order from the lowest frequency, and the total number of these physical resource blocks PRB (N_PRB) The maximum number that is smaller and divisible by the multiplexing number Nd is the total number of distributed virtual resource blocks DVRB (N_DVRB), and each distributed virtual resource block DVRB is numbered with a VRB number (DVRB number). Although details will be described later, a value different from the maximum number (a value smaller than the maximum number) may be used as the total number of distributed virtual resource blocks DVRB.

  In the second step (second step), Nd distributed virtual resource blocks DVRB are grouped into a distributed virtual resource block DVRB unit. Here, the distributed virtual resources are obtained by arranging the distributed virtual resource blocks DVRB arranged by the VRB number from the smallest VRB number by dividing the total number N_DVRB of the distributed virtual resource blocks DVRB by the multiplexing number Nd (N_DVRB / Nd). A block DVRB unit is assumed. When the multiplexing number Nd is 2, the distributed virtual resource block DVRB unit is composed of two distributed virtual resource blocks DVRB. In this case, the numbers between the distributed virtual resource blocks DVRB are separated by a value (N_DVRB / 2) obtained by dividing the total number N_DVRB of the distributed virtual resource blocks DVRB by 2.

  When the multiplexing number Nd is 3, the distributed virtual resource block DVRB unit is composed of three distributed virtual resource blocks DVRB. In this case, among the distributed virtual resource block DVRB units, the distributed virtual resource block DVRB having the smallest VRB number value and the distributed virtual resource block DVRB having the middle VRB value value are distributed in the middle of the VRB number value. The VRB number between the virtual resource block DVRB and the distributed virtual resource block DVRB having the largest VRB number value is separated from the total number N_DVRB of the distributed virtual resource blocks DVRB by 3 (N_DVRB / 3).

  Here, the distributed virtual resource block DVRB unit is composed of a plurality of ordered areas, and the distributed virtual resource block DVRB is allocated to each area from the smaller VRB number. When the multiplexing number Nd is 2, the distributed virtual resource block DVRB unit is composed of two ordered regions (region X and region Y in order from the first), and the distributed virtual resource block DVRB with a small number value is included in the region X. The distributed virtual resource block DVRB having a large number value is allocated to the area Y. When the multiplexing number Nd is 3, the distributed virtual resource block DVRB unit is composed of three ordered regions (region X, region Y, region Z in order from the first). The resource block DVRB is assigned, the distributed virtual resource block DVRB having the middle number value is assigned to the area Y, and the distributed virtual resource block DVRB having the largest number value is assigned to the area Z.

  In the third step (third step), DVRB unit numbers are numbered sequentially from the distributed virtual resource block DVRB unit having the smallest sum of VRB numbers of each distributed virtual resource block DVRB (DVRB-Unit number). The total number of distributed virtual resource block DVRB units is the number (N_DVRB / Nd) obtained by dividing the total number of distributed virtual resource blocks N_DVRB by the multiplexing number Nd.

  In the fourth step (fourth step), a distributed virtual resource block DVRB unit set is configured by a plurality of distributed virtual resource block DVRB units. Here, a distributed virtual resource block DVRB unit set is composed of M distributed virtual resource block DVRB units having a set number of consecutive DVRB unit numbers. For example, the set number M is two or three, and the set M is configured by two or three distributed virtual resource block DVRB units. Then, the DVRB unit set number is numbered sequentially from the distributed virtual resource block DVRB unit set constituted by the distributed virtual resource block DVRB unit having the smallest DVRB unit number (DVRB-Unit-Set number).

  When the number of distributed virtual resource block DVRB units constituting the distributed virtual resource block DVRB unit set is the number of sets (M), the total number of distributed virtual resource block DVRB unit sets is the total number of distributed virtual resource blocks DVRB N_DVRB. The total number of DVRB units divided by Nd is further divided by the number of sets M (N_DVRB / Nd) / M.

  In the fifth step (fifth step), the virtual resource blocks DVRB units extracted in a predetermined order from all the distributed virtual resource block DVRB unit sets configured in the fourth step are arranged (in the order in which they are arranged). ) Is a first distributed virtual resource block DVRB unit group (virtual resource block unit group). At this time, this predetermined order is the distributed virtual resource to which the distributed virtual resource block DVRB having the earliest order in each distributed virtual resource block DVRB unit set, that is, the distributed virtual resource block DVRB having the smallest VRB number belongs in the order of the distributed virtual resource block DVRB unit set. This is the order of extraction when one block DVRB unit is extracted and repeated until all virtual resource block DVRB units are extracted.

  That is, first, the distributed virtual resource block DVRB having the smallest DVRB unit number (DVRB-Unit number) value of the distributed virtual resource block DVRB unit set having the smallest DVRB unit set number (DVRB-Unit-Set number) value. Add the unit to the first distributed virtual resource block DVRB unit group. Then, the distributed virtual resource block DVRB unit having the smallest DVRB unit number (DVRB-Unit number) value of the distributed virtual resource block DVRB unit set of the next DVRB unit set number (DVRB-Unit-Set number) is assigned to the first distributed virtual resource block DVRB unit. Add to the virtual resource block DVRB unit group.

  Similar processing is repeated for the distributed virtual resource block DVRB unit set of the subsequent DVRB unit set number (DVRB-Unit-Set number). After the distributed virtual resource block DVRB unit having the smallest DVRB unit number (DVRB-Unit number) value in all the distributed virtual resource block DVRB unit sets is added to the first distributed virtual resource block DVRB unit group, all distributed Similarly, the distributed virtual resource block DVRB unit having the second lowest DVRB unit number (DVRB-Unit number) in the virtual resource block DVRB unit set is added to the first distributed virtual resource block DVRB unit group. Thereafter, the same processing is repeated for the distributed virtual resource block DVRB units of all the numbers to form a first distributed virtual resource block DVRB unit group arranged in the order in which the distributed virtual resource block DVRB units are added.

  In the sixth step (sixth step), different distributed virtual resource block DVRB unit groups are configured by converting the virtual resource block DVRB unit assigned to the area of the first distributed virtual resource block DVRB unit group. Virtual resource block DVRB in which the order of the areas to which the virtual resource block DVRB is allocated in each virtual resource block DVRB unit constituting the first virtual resource block DVRB unit group is shifted by n-1 (where n is 2 to the number of multiples). A group with an order of units is defined as an nth virtual resource block DVRB unit group. That is, a distributed virtual resource block DVRB unit group different from the first number obtained by subtracting 1 from the multiplexing number Nd is generated. When the multiplexing number Nd is 2, the region X of the first distributed virtual resource block DVRB unit group (the region to which the distributed virtual resource block with the smaller VRB number is allocated among the distributed virtual resource block DVRB units) and the region Y The distributed virtual resource blocks DVRB assigned to the two are mutually converted to form a second distributed virtual resource block DVRB unit group.

  When the multiplexing number Nd is 3, the distributed virtual resource block DVRB assigned to the area X of the first distributed virtual resource block DVRB unit group is assigned to the area Y, and the distributed virtual resource block DVRB assigned to the area Y is assigned to the area Z. And the distributed virtual resource block DVRB assigned to the area Z assigned to the area X is configured as a second distributed virtual resource block DVRB unit group. The distributed virtual resource block DVRB assigned to area X of the first distributed virtual resource block DVRB unit group is assigned to area Z, the distributed virtual resource block DVRB assigned to area Y is assigned to area X, and assigned to area Z. The distributed virtual resource block DVRB assigned to the area Y is configured as a third distributed virtual resource block DVRB unit group.

  In the final seventh step (seventh step), the distributed virtual resource block DVRB unit group is associated with the physical resource block PRB pair. That is, the virtual resource block DVRB unit groups are associated with physical resource blocks DVRB continuous in the frequency direction of the number of virtual resource blocks DVRB units constituting each virtual resource block DVRB unit group so as not to overlap each other. Thereby, a rule that sets the order of the combination of the virtual resource block DVRB and the physical resource block PRB constituting the virtual resource block DVRB unit group and the number of the virtual resource block DVRB associated with the combination to the order of the combination, That is, an association rule for the distributed virtual resource block DVRB and the physical resource block PRB pair is created. When the multiplexing number Nd is 2, the first distributed virtual resource block with respect to the physical resource block PRB pair group having a smaller value of the PRB number (PRB number) assigned to each physical resource block PRB pair in order from the lowest frequency side A DVRB unit group is associated, and a second distributed virtual resource block DVRB unit group is associated with a physical resource block PRB group having a large PRB number (PRB number) value.

  Among the distributed virtual resource blocks DVRB units of the first distributed virtual resource block DVRB unit group and the second distributed virtual resource block DVRB unit group, two distributed virtual resource block DVRB units having the same combination of virtual resource blocks DVRB are arranged. The interval of the physical resource blocks PRB in the frequency direction is basically a value obtained by dividing the total number of distributed virtual resource blocks DVRB by the number of multiplexing Nd = 2. Each distributed virtual resource block DVRB unit between a physical resource block PRB group associated with the first distributed virtual resource block DVRB unit group and a physical resource block PRB group associated with the second distributed virtual resource block DVRB unit group When arranging physical resource blocks PRB not associated with a group, the number is added to the interval. Here, the distributed virtual resource block DVRB unit and the physical resource block PRB are associated one-to-one, the region X is associated with the first slot of the subframe, and the region Y is associated with the second slot of the subframe. To do.

  When the multiplexing number Nd is 3, the first distributed virtual resource block DVRB unit group is associated with a physical resource block PRB group having a small PRB number (PRB number) value, and the value of the number (PRB number) is the middle. The second distributed virtual resource block DVRB unit group is associated with about the physical resource block PRB group, and the third distributed virtual resource block DVRB is associated with the physical resource block PRB group having a large number (PRB number). Associate unit groups.

  Among the distributed virtual resource block DVRB units included in the first distributed virtual resource block DVRB unit group and the second distributed virtual resource block DVRB unit group, distributed virtual resource block DVRB units having the same combination of virtual resource blocks DVRB are Of the distributed virtual resource block DVRB units included in the interval between the physical resource blocks PRB to be arranged and the second distributed virtual resource block DVRB unit group and the third distributed virtual resource block DVRB unit group, the virtual resource block DVRB The interval between physical resource blocks PRB in which distributed virtual resource block DVRB units having the same combination are arranged is basically the total number N_D of distributed virtual resource blocks DVRB. It is divided by the multiplexing number Nd = 3 and RB.

  However, each distributed virtual resource block is between the physical resource block PRB group associated with the first distributed virtual resource block DVRB unit group and the physical resource block PRB group associated with the second distributed virtual resource block DVRB unit group. When a physical resource block PRB not associated with a DVRB unit group is arranged, and a physical resource block PRB group associated with a second distributed virtual resource block DVRB unit group is associated with a third distributed virtual resource block DVRB unit group When a physical resource block PRB that is not associated with each distributed virtual resource block DVRB unit group is arranged between the physical resource block PRB groups, the number is added to each interval described above. .

  Here, the distributed virtual resource block DVRB unit and the physical resource block PRB pair are associated one-to-one, and the region X is a subframe region A (1, 4, 7, Region Y is associated with subframe region B (third, sixth, ninth and twelfth OFDM symbols), and region Z is subframe region C (second, second). 5th, 8th and 11th OFDM symbols).

  When the total number of distributed virtual resource block DVRB units (N_DVRB / Nd) is not divisible by the number of sets (M), when configuring the distributed virtual resource block DVRB unit set, the last DVRB unit set number (DVRB-Unit-Set number) ) Distributed virtual resource block DVRB unit set using a distributed virtual resource block DVRB unit consisting of blanks (not a distributed virtual resource block DVRB, indicating a blank area to which no information is associated) Configure the DVRB unit set. When configuring the first distributed virtual resource block DVRB unit group, the distributed virtual resource block DVRB unit consisting only of blanks is not added, skipped, and the distributed virtual resource block configured from the distributed virtual resource block DVRB A first distributed virtual resource block DVRB unit group is configured using only DVRB units.

  In the seventh step described above, when the distributed virtual resource block DVRB unit group is associated with the physical resource block PRB, the total number of physical resource blocks PRB of the system bandwidth may not be divisible by the multiplexing number Nd. In some cases, the total number of distributed virtual resource blocks DVRB is set in consideration of the number of bits of the radio resource allocation information. At this time, if the total number of distributed virtual resource blocks DVRB is smaller than the total number of physical resource blocks PRB, the remaining physical resource blocks PRB are blank (indicating that no distributed virtual resource block DVRB unit group is arranged).

  When the multiplexing number Nd is 2, the physical resource block PRB between the physical resource block PRB group that associates the first distributed virtual resource block DVRB unit group and the second distributed virtual resource block DVRB unit group is blank. Is preferred. When the multiplexing number Nd is 3, the physical resource block PRB between the physical resource block PRB group that associates the first distributed virtual resource block DVRB unit group with the second distributed virtual resource block DVRB unit group, and / or the first The physical resource block PRB between the physical resource blocks PRB group that associates the second distributed virtual resource block DVRB unit group with the third distributed virtual resource block DVRB unit group is preferably blank.

  Here, areas of two different physical resource blocks PRB (areas of physical resource blocks PRB between physical resource blocks PRB groups that associate the first distributed virtual resource block DVRB unit group and the second distributed virtual resource block DVRB unit group) When setting the area of the physical resource block PRB between the physical resource block PRB group associating the second distributed virtual resource block DVRB unit group and the third distributed virtual resource block DVRB unit group) to blank, set to blank The number of physical resource blocks PRB to be set is set to be relatively uniform between areas.

  Note that the order of the distributed virtual resource block DVRB unit groups associated with the physical resource block PRB may be different. For example, when the multiplexing number Nd is 2, the second distributed virtual resource block DVRB unit group is associated with the physical resource block PRB group having a small PRB number (PRB number) value, and the PRB number (PRB number) The first distributed virtual resource block DVRB unit group may be associated with the physical resource block PRB group having a large value. For example, when the multiplexing number Nd is 3, the third distributed virtual resource block DVRB unit group is associated with the physical resource block PRB group having a small PRB number (PRB number) value, and the PRB number (PRB number) ) Is associated with the first distributed virtual resource block DVRB unit group for the physical resource block PRB group having the middle value, and the second for the physical resource block PRB group having a large PRB number (PRB number) value. The distributed virtual resource block DVRB unit groups may be associated with each other.

  Hereinafter, Nd is the multiplexing number, the total number of physical resource blocks PRB of the system bandwidth is N_PRB, the number identifying the physical resource block PRB is the PRB number, the total number of distributed virtual resource blocks DVRB is N_DVRB, and the distributed virtual resource block DVRB is identified The number is the VRB number, the number that identifies the distributed virtual resource block DVRB unit is the DVRB unit number, the number of sets of the distributed virtual resource block DVRB unit set (the number of distributed virtual resource block DVRB units) is M, and the distributed virtual resource block DVRB unit set A specific example of creating an association rule by the above-described method will be described with the number for identifying the ID being referred to as a DVRB unit set number.

  A first example of the association rule between the distributed virtual resource block DVRB and the physical resource block PRB pair will be described with reference to FIGS. FIG. 8A shows a physical resource block PRB pair of the system bandwidth in the first association rule example. In FIG. 8A, frequency is plotted on the horizontal axis, and each square indicates a physical resource block PRB pair. Represents something. In this first association rule example, as shown in FIG. 8A, the total number N_PRB of physical resource block PRB pairs is “18”, the multiplexing number Nd is “2”, and the set number M is “ The case of 2 ”will be described.

  FIG. 8B is a diagram showing the distributed virtual resource block DVRB in the first association rule example. In FIG. 8B, each square represents a distributed virtual resource block DVRB, and symbols DVRB1 to DVRB18 attached to these squares represent the distributed virtual resource blocks DVRB with VRB numbers 1 to 18, respectively. The total number N_PRB of physical resource blocks is “18”, and the maximum value that is divisible by the multiplex number Nd “2” is “18” below that value. Therefore, in this first association rule example, In the first step, as shown in FIG. 8B, the total number N_DVRB of the distributed virtual resource blocks DVRB is set to “18” which is the maximum value, and the distributed virtual resource blocks DVRB1 to DVRB18 are associated with each other.

  FIG. 9 is a diagram showing the distributed virtual resource block DVRB unit in the first association rule example. Since the value obtained by dividing the total number N_DVRB “18” of the distributed virtual resource block DVRB by the multiplexing number Nd “2” is “9”, in the first association rule example, the second and third steps described above As shown in FIG. 9, nine distributed virtual resource block DVRB units DU1 to DU9 are configured.

  As shown in FIG. 9, among these, the distributed virtual resource block DVRB unit DU1 is composed of distributed virtual resource blocks DVRB1 and DVRB10. The distributed virtual resource block DVRB unit DU2 is composed of distributed virtual resource blocks DVRB2 and DVRB11. The distributed virtual resource block DVRB unit DU3 is composed of distributed virtual resource blocks DVRB3 and DVRB12. The distributed virtual resource block DVRB unit DU4 is composed of distributed virtual resource blocks DVRB4 and DVRB13. The distributed virtual resource block DVRB unit DU5 is composed of distributed virtual resource blocks DVRB5 and DVRB14.

  The distributed virtual resource block DVRB unit DU6 is composed of distributed virtual resource blocks DVRB6 and DVRB15. The distributed virtual resource block DVRB unit DU7 is composed of distributed virtual resource blocks DVRB7 and DVRB16. The distributed virtual resource block DVRB unit DU8 is composed of distributed virtual resource blocks DVRB8 and DVRB17. The distributed virtual resource block DVRB unit DU9 is composed of distributed virtual resource blocks DVRB9 and DVRB18.

  Here, the distributed virtual resource block DVRB unit is made up of regions having a multiplexing number Nd “2”, that is, regions X and Y. Distributed virtual resource blocks DVRB1, DVRB2, DVRB3, DVRB4, DVRB5, DVRB6, DVRB7, DVRB8, and DVRB9 are allocated to the area X of the distributed virtual resource block DVRB units DU1 to DU9, respectively. Blocks DVRB10, DVRB11, DVRB12, DVRB13, DVRB14, DVRB15, DVRB16, DVRB17, DVRB18 are allocated.

  FIG. 10 is a diagram showing a distributed virtual resource block DVRB unit set in the first association rule example. Five distributed virtual resource block DVRB unit sets composed of “2” distributed virtual resource block DVRB units with the number of sets M are generated (9 is divided by 2: CEILING (9/2)). As shown in FIG. 10, the distributed virtual resource block DVRB unit set DUS1 is composed of the distributed virtual resource block DVRB units DU1 and DU2 by the above-mentioned fourth step.

  Similarly, the distributed virtual resource block DVRB unit set DUS2 is composed of distributed virtual resource block DVRB units DU3 and DU4. The distributed virtual resource block DVRB unit set DUS3 is composed of distributed virtual resource block DVRB units DU5 and DU6. The distributed virtual resource block DVRB unit set DUS4 is composed of distributed virtual resource block DVRB units DU7 and DU8. The distributed virtual resource block DVRB unit set DUS5 is composed of the distributed virtual resource block DVRB unit DU9 and one distributed virtual resource block DVRB unit consisting of blanks. Here, each distributed virtual resource block DVRB unit (including a blank) is numbered in each distributed virtual resource block DVRB unit set (1-1, 1-2, 2-1, 2-2, 3-1, 3-2, 4-1, 4-2, 5-1, 5-2). These numbers are the distribution of the DVRB unit set number of the distributed virtual resource block DVRB unit set and the smaller VRB number of the distributed virtual resource block DVRB included in the distributed virtual resource block DVRB unit in the distributed virtual resource block DVRB unit set. The numbers are assigned in order from the virtual resource block DVRB unit.

  FIG. 11 is a diagram illustrating the first and second distributed virtual resource block DVRB unit groups in the first association rule example. The first distributed virtual resource block DVRB unit group including all the distributed virtual resource block DVRB units is configured by the fifth step described above. Specifically, this configuration is performed as follows. The distributed virtual resource block DVRB unit DU1 having a smaller VRB number of the distributed virtual resource block DVRB unit set DUS1 is added to the first distributed virtual resource block DVRB unit group, and then the VRB number of the distributed virtual resource block DVRB unit set DUS2 is added. The distributed virtual resource block DVRB units DU5, DU7, and DU9 are subsequently added in such a manner that the smaller distributed virtual resource block DVRB unit DU3 is added, and the distribution with the smaller VRB number in each distributed virtual resource block DVRB unit set is added. All virtual resource block DVRB units are added.

  Next, a distributed virtual resource block DVRB unit DU2 with a larger VRB number of the distributed virtual resource block DVRB unit set DUS1 is added, and then a distributed virtual resource block DVRB unit DU4 with a larger VRB number of the distributed virtual resource block DVRB unit set DUS2 is added. Subsequently, distributed virtual resource block DVRB units DU6 and DU8 are added, and all of the distributed virtual resource blocks DVRB units having larger VRB numbers in each distributed virtual resource block DVRB unit set are added. At this time, the blank is not added to the first distributed virtual resource block DVRB unit group.

  As a result, in the primary distributed virtual resource block DVRB unit group, the distributed virtual resource block DVRB units are arranged in the order of DU1, DU3, DU5, DU7, DU9, DU2, DU4, DU6, and DU8, as shown in FIG. It will be a thing. That is, the distributed virtual resource blocks DVRB allocated to the region X are arranged in the order of DVRB1, DVRB3, DVRB5, DVRB7, DVRB9, DVRB2, DVRB4, DVRB6, DVRB8, and the distributed virtual resource blocks DVRB allocated to the region Y are DVRB12, DVRB , DVRB14, DVRB16, DVRB18, DVRB11, DVRB13, DVRB15, DVRB17.

  The sixth step described above forms a second distributed virtual resource block DVRB unit group that is different from the second distributed virtual resource block DVRB unit group in the distributed virtual resource block DVRB assigned to each region. That is, the second distributed virtual resource block DVRB unit group is exchanged by exchanging the distributed virtual resource block DVRB assigned to the area X of the first distributed virtual resource block DVRB unit group and the distributed virtual resource block DVRB assigned to the area Y. Configure.

  FIG. 12 is a diagram illustrating a first example of the association rule between the distributed virtual resource block DVRB and the physical resource block PRB pair. In FIG. 12, the horizontal axis represents frequency, and each square represents the area of each slot in the physical resource block PRB pair. Each of the squares, ie, DVRB1, DVRB2,. The symbols PRB1, PRB2,... PRB18 attached to indicate that the PRB number of the first physical resource block PRB of the physical resource block PRB pair in the corresponding region is 1, 2,.

  By the seventh step described above, the first distributed virtual resource block DVRB unit group generated in the fifth step is associated with the physical resource block PRB pairs having the PRB numbers 1 to 9, and the PRB numbers 10 to 18 are assigned. The second distributed virtual resource block DVRB unit group generated in the sixth step is associated with the physical resource block PRB pair. Furthermore, region X is associated with the first slot of the subframe, and region Y is associated with the second slot of the subframe. As a result, as shown in FIG. 12, for the physical resource block PRB pairs of PRB numbers 1 to 18, the VRB numbers are 1, 3, 5, 7, 9, 2, 4, 6, 8, 10, 12, 14, 16, 18, 11, 13, 15, 17 are allocated distributed virtual resource blocks DVRB, and each second slot has 10, 12, 14, 16, The distributed virtual resource blocks DVRB of 18, 11, 13, 15, 17, 1, 3, 5, 7, 9, 2, 4, 6, 8 are allocated.

  Next, a second example of the association rule between the distributed virtual resource block DVRB and the physical resource block PRB pair will be described with reference to FIGS. FIG. 13A is a diagram showing physical resource block PRB pairs of the system bandwidth in the second association rule example. In FIG. 13A, the horizontal axis represents frequency, each square represents a physical resource block PRB pair, and the symbols PRB1 to PRB12 attached to these squares are physical resource block PRB pairs of PRB numbers 1 to 12, respectively. Represents something.

  In the second association rule example, a case will be described in which the multiplexing number Nd is “2”, the total number N_PRB of physical resource block PRB pairs of the system bandwidth is “12”, and the set number M is “2”. For simplification of description, portions different from the first association rule example shown in FIGS. Since the total number N_PRB of the physical resource blocks is “12” and the multiplexing number Nd is “2”, in the second association rule example, as shown in FIG. The total number N_DVRB of the distributed virtual resource blocks DVRB is “12”, and the distributed virtual resource blocks DVRB1 to DVRB12 are associated with each other.

  FIG. 14 is a diagram showing the distributed virtual resource block DVRB unit in the second example of association rule. In the case of the second association rule example, six distributed virtual resource block DVRB units DU1 to DU6 are configured by the second and third steps described above as shown in FIG. In each area X of the six distributed virtual resource block DVRB units DU1 to DU6, distributed virtual resource blocks DVRB (reference numerals DVRB1, DVRB2, DVRB3, DVRB4, DVRB5) having VRB numbers 1, 2, 3, 4, 5, 6 , DVRB6). Further, in each area Y of the distributed virtual resource block DVRB units DU1 to DU6, the distributed virtual resource blocks DVRB (reference numerals DVRB7, DVRB8, DVRB9, DVRB10, DVRB11, VRB numbers 7, 8, 9, 10, 11, 12) are provided. DVRB 12) is assigned.

  FIG. 15 is a diagram illustrating a distributed virtual resource block DVRB unit set in the second association rule example. As shown in FIG. 15, from the six distributed virtual resource block DVRB units, the distributed virtual resource block DVRB unit set composed of 2 (M) distributed virtual resource block DVRB units is obtained by the fourth step described above. Three (DUS1 to DUS3) are generated. The distributed virtual resource block DVRB unit set DUS1 is composed of distributed virtual resource blocks DVRB units DU1 and DU2. Similarly, the distributed virtual resource block DVRB unit set DUS2 is composed of distributed virtual resource block DVRB units DU3 and DU4. Similarly, the distributed virtual resource block DVRB unit set DUS3 is composed of distributed virtual resource block DVRB units DU5 and DU6. At this time, since six distributed virtual resource block DVRB units can be equally divided by 2, no blank is used.

  FIG. 16 is a diagram illustrating first and second distributed virtual resource block DVRB unit groups in the second association rule example. By the fifth step described above, the primary distributed virtual resource block DVRB unit group has the distributed virtual resource block DVRB units arranged in the order of DU1, DU3, DU5, DU2, DU4, DU6 as shown in FIG. It becomes. That is, the distributed virtual resource blocks DVRB allocated to the region X are arranged in the order of DVRB1, DVRB3, DVRB5, DVRB2, DVRB4, DVRB6, and the distributed virtual resource blocks DVRB allocated to the region Y are DVRB7, DVRB9, DVRB10, DVRB10, DVRB10, DVRB10, , DVRB12 are arranged in this order.

  Further, the second distributed virtual resource block DVRB unit group is distributed virtual resource blocks allocated to the area X of the first distributed virtual resource block DVRB unit group as shown in FIG. 16 by the sixth step described above. The DVRB and the distributed virtual resource block DVRB assigned to the area Y are exchanged. That is, in the secondary distributed virtual resource block DVRB unit group, the distributed virtual resource blocks DVRB allocated to the region X are arranged in the order of DVRB7, DVRB9, DVRB11, DVRB8, DVRB10, DVRB12 and distributed virtual resource blocks allocated to the region Y. DVRB is arranged in the order of DVRB1, DVRB3, DVRB5, DVRB2, DVRB4, and DVRB6.

  FIG. 17 is a diagram illustrating a second example of the association rule between the distributed virtual resource block DVRB and the physical resource block PRB pair. In FIG. 17, the horizontal axis represents frequency, and each square represents the area of each slot in the physical resource block PRB pair. Each of the squares, ie, DVRB1, DVRB2,. The symbols PRB1, PRB2,... PRB12 attached to indicate that the PRB numbers of the first physical resource blocks PRB of the physical resource block PRB pair in the corresponding region are 1, 2,.

  By the seventh step described above, the first distributed virtual resource block DVRB unit group generated in the fifth step is associated with the physical resource block PRB pairs having the PRB numbers 1 to 9, and the PRB numbers 10 to 18 are assigned. The second distributed virtual resource block DVRB unit group generated in the sixth step is associated with the physical resource block PRB pair. Furthermore, region X is associated with the first slot of the subframe, and region Y is associated with the second slot of the subframe. As a result, as shown in FIG. 17, for each physical resource block PRB pair of PRB numbers 1 to 12, the VRB numbers are 1, 3, 5, 7, 9, 2, 4, 6, 8, 10, 12, 14, 16, 18, 11, 13, 15, 17 are allocated distributed virtual resource blocks DVRB, and each second slot has 10, 12, 14, 16, The distributed virtual resource blocks DVRB of 18, 11, 13, 15, 17, 1, 3, 5, 7, 9, 2, 4, 6, 8 are allocated.

  Next, a third example of the association rule between the distributed virtual resource block DVRB and the physical resource block PRB pair will be described with reference to FIGS. FIG. 18A is a diagram showing physical resource block PRB pairs of system bandwidth in the second association rule example. In FIG. 18A, the horizontal axis represents frequency, each square represents a physical resource block PRB pair, and the symbols PRB1 to PRB15 attached to these squares are physical resource block PRB pairs with PRB numbers 1 to 15, respectively. Represents something.

  In the third association rule example, a case will be described in which the multiplexing number Nd is “2”, the total number N_PRB of physical resource block PRB pairs of the system bandwidth is “15”, and the number of sets M is “2”. For simplification of description, portions different from the first association rule example shown in FIGS. Since the total number N_PRB of physical resource blocks is “15” and the multiplex number Nd is “2”, in the second association rule example, as shown in FIG. Further, the total number N_DVRB of the distributed virtual resource blocks DVRB is “14”, and the distributed virtual resource blocks DVRB1 to DVRB14 are associated with each other.

  FIG. 19 is a diagram illustrating the distributed virtual resource block DVRB unit in the third association rule example. In the case of the third association rule example, seven distributed virtual resource block DVRB units DU1 to DU7 are configured by the above-described second and third steps as shown in FIG. In each region X of the seven distributed virtual resource block DVRB units DU1 to DU7, distributed virtual resource blocks DVRB (reference numerals DVRB1, DVRB2, DVRB3, DVRB4) with VRB numbers 1, 2, 3, 4, 5, 6, 7 are provided. , DVRB5, DVRB6, DVRB7). In addition, in each area Y of the seven distributed virtual resource block DVRB units DU1 to DU7, distributed virtual resource blocks DVRB (reference numerals DVRB8, DVRB9, DVRB10) having VRB numbers of 8, 9, 10, 11, 12, 13, 14 are provided. , DVRB11, DVRB12, DVRB14).

  FIG. 20 is a diagram illustrating a distributed virtual resource block DVRB unit set in the third association rule example. As shown in FIG. 20, from the seven distributed virtual resource block DVRB units, the distributed virtual resource block DVRB unit set constituted by 2 (M) distributed virtual resource block DVRB units is obtained by the above-mentioned fourth step. Four (DUS1 to DUS4) are generated. The distributed virtual resource block DVRB unit set DUS1 is composed of distributed virtual resource blocks DVRB units DU1 and DU2. Similarly, the distributed virtual resource block DVRB unit set DUS2 is composed of distributed virtual resource block DVRB units DU3 and DU4. Similarly, the distributed virtual resource block DVRB unit set DUS3 is composed of distributed virtual resource block DVRB units DU5 and DU6. The distributed virtual resource block DVRB unit set DUS4 includes a distributed virtual resource block DVRB unit DU7 and a blank.

  FIG. 21 is a diagram illustrating the first and second distributed virtual resource block DVRB unit groups in the third association rule example. According to the fifth step described above, the primary distributed virtual resource block DVRB unit group is arranged in the order of DU1, DU3, DU5, DU7, DU2, DU4, DU6 in the distributed virtual resource block DVRB unit as shown in FIG. It will be. That is, the distributed virtual resource blocks DVRB allocated to the region X are arranged in the order of DVRB1, DVRB3, DVRB5, DVRB7, DVRB2, DVRB4, DVRB6, and the distributed virtual resource blocks DVRB allocated to the region Y are DVRB8, DVRB10, DVRB14, DVRB14, , DVRB9, DVRB11, DVRB13 are arranged in this order.

  Further, the second distributed virtual resource block DVRB unit group is distributed virtual resource blocks allocated to the area X of the first distributed virtual resource block DVRB unit group as shown in FIG. The DVRB and the distributed virtual resource block DVRB assigned to the area Y are exchanged. That is, in the secondary distributed virtual resource block DVRB unit group, the distributed virtual resource block DVRB allocated to the region X is arranged in the order of DVRB8, DVRB10, DVRB12, DVRB14, DVRB9, DVRB11, DVRB13, and distributed virtual resource allocated to the region Y. The resource blocks DVRB are arranged in the order of DVRB1, DVRB3, DVRB5, DVRB7, DVRB2, DVRB4, DVRB6.

  FIG. 22 is a diagram illustrating a third example of the association rule between the distributed virtual resource block DVRB and the physical resource block PRB pair. In FIG. 22, the horizontal axis represents frequency, and each square represents the area of each slot in the physical resource block PRB pair. Each of the squares, that is, DVRB1, DVRB2,... DVRB14 assigned to each slot of each physical resource block PRB pair represents a distributed virtual resource block DVRB with VRB numbers 1 to 14 assigned to the corresponding region, and each frequency region The symbols PRB1, PRB2,... PRB15 attached to indicate that the PRB number of the first physical resource block PRB of the physical resource block PRB pair in the corresponding region is 1, 2,.

  In the case of the third association rule example, the total number N_PRB “15” of physical resource blocks PRB is one more than the total number N_DVRB “14” of distributed virtual resource blocks DVRB. The first distributed virtual resource block DVRB unit group generated in the fifth step is associated with the 7 physical resource block PRB pairs, the physical resource block PRB with the PRB number 8 is blank, and the PRB numbers 9-15 The second distributed virtual resource block DVRB unit group generated in the sixth step is associated with the physical resource block PRB pair.

  Furthermore, region X is associated with the first slot of the subframe, and region Y is associated with the second slot of the subframe. Thus, as shown in FIG. 22, for each physical resource block PRB pair with PRB numbers 1 to 15, the VRB numbers are 1, 3, 5, 7, 2, 4, 6, blank, 8, 10, 12, 14, 16, 9, distributed virtual resource block DVRB is allocated, and each second slot has 8, 10, 12, 14, 9, 11, 13, blank 1, 3, 5, 7, 2, 4, 6 distributed virtual resource blocks DVRB are allocated.

  Next, a fourth example of the association rule between the distributed virtual resource block DVRB and the physical resource block PRB pair will be described with reference to FIGS. FIG. 23A is a diagram showing physical resource block PRB pairs of the system bandwidth in the fourth association rule example. In FIG. 23 (a), the horizontal axis represents frequency, each square represents a physical resource block PRB pair, and the symbols PRB1 to PRB18 attached to these squares are physical resource block PRB pairs of PRB numbers 1 to 18, respectively. Represents something.

  In the fourth association rule example, a case will be described in which the multiplexing number Nd is “3”, the total number N_PRB of physical resource block PRB pairs of the system bandwidth is “18”, and the set number M is “2”. For simplification of description, portions different from the first association rule example shown in FIGS. Since the total number N_PRB of the physical resource blocks is “18” and the multiplexing number Nd is “3”, in the fourth association rule example, as shown in FIG. Further, the total number N_DVRB of the distributed virtual resource blocks DVRB is “18”, and the distributed virtual resource blocks DVRB1 to DVRB18 are associated with each other.

  FIG. 24 is a diagram illustrating the distributed virtual resource block DVRB unit in the fourth association rule example. In the case of the fourth association rule example, the value obtained by dividing the total number N_DVRB “18” of the distributed virtual resource block DVRB by the multiplexing number Nd “3” as shown in FIG. 24 by the second and third steps described above. 6 distributed virtual resource block DVRB units DU1 to DU6 are configured. In the fourth association rule example, since the multiplexing number Nd is “3”, each distributed virtual resource block DVRB unit is divided into three regions X, Y, and Z. In each area X of the six distributed virtual resource block DVRB units DU1 to DU6, distributed virtual resource blocks DVRB (reference numerals DVRB1, DVRB2, DVRB3, DVRB4, DVRB5) having VRB numbers 1, 2, 3, 4, 5, 6 , DVRB6).

  Further, in each area Y of the distributed virtual resource block DVRB units DU1 to DU6, the distributed virtual resource blocks DVRB (reference numerals DVRB7, DVRB8, DVRB9, DVRB10, DVRB11, VRB numbers 7, 8, 9, 10, 11, 12) are provided. DVRB 12) is assigned. Also, in each of the regions Z of the distributed virtual resource block DVRB units DU1 to DU6, distributed virtual resource blocks DVRB (reference numerals DVRB13, DVRB14, DVRB15, DVRB16, DVRB17, VRB numbers 13, 14, 15, 16, 17, 18) are provided. DVRB 18) is assigned.

  FIG. 25 is a diagram illustrating a distributed virtual resource block DVRB unit set in the fourth association rule example. As shown in FIG. 25, from the six distributed virtual resource block DVRB units, the distributed virtual resource block DVRB unit set constituted by 2 (M) distributed virtual resource block DVRB units is obtained by the fourth step described above. Three (DUS1 to DUS3) (rounded up by dividing 6 by 2: CEILING (6/2)) are generated. The distributed virtual resource block DVRB unit set DUS1 is composed of distributed virtual resource blocks DVRB units DU1 and DU2. Similarly, the distributed virtual resource block DVRB unit set DUS2 is composed of distributed virtual resource block DVRB units DU3 and DU4. Similarly, the distributed virtual resource block DVRB unit set DUS3 is composed of distributed virtual resource block DVRB units DU5 and DU6. Here, numbering in each distributed virtual resource block DVRB unit set for each distributed virtual resource block DVRB unit (1-1, 1-2, 2-1, 2-2, 3-1, 3-2) I do.

  FIG. 26 is a diagram illustrating the first, second, and third distributed virtual resource block DVRB unit groups in the fourth association rule example. Through the fifth step, the first distributed virtual resource block DVRB unit group is configured by all the distributed virtual resource block DVRB units. That is, in the first distributed virtual resource block DVRB unit group, the distributed virtual resource block DVRB unit 1-1 of the distributed virtual resource block DVRB unit set 1-1 having a small number in each distributed virtual resource block DVRB unit set is provided. Distributed virtual resource block DVRB unit set 1 that is assigned a larger number in each distributed virtual resource block DVRB unit set after being added in the order of 2-1 of set 2 and 3-1 of distributed virtual resource block DVRB unit set 3 1-2 of the distributed virtual resource block DVRB unit set 2 and 3-2 of the distributed virtual resource block DVRB unit set 3.

  As a result, in the first distributed virtual resource block DVRB unit group, the distributed virtual resource block DVRB units are arranged in the order of DU1, DU3, DU5, DU2, DU4, and DU6 as shown in FIG. That is, the distributed virtual resource blocks DVRB allocated to the region X are arranged in the order of DVRB1, DVRB3, DVRB5, DVRB2, DVRB4, DVRB6, and the distributed virtual resource blocks DVRB allocated to the region Y are DVRB7, DVRB9, DVRB10, DVRB10, DVRB10, DVRB10, , DVRB12 and the distributed virtual resource blocks DVRB assigned to the region Z are arranged in the order of DVRB13, DVRB15, DVRB17, DVRB14, DVRB16, DVRB18.

  Also, the second distributed virtual resource block DVRB unit group is distributed virtual resource blocks allocated to the area X of the first distributed virtual resource block DVRB unit group as shown in FIG. 26 by the sixth step described above. The DVRB is the region Y, the distributed virtual resource block DVRB assigned to the region Y is the region Z, and the distributed virtual resource block DVRB assigned to the region Z is the region X. That is, in the second distributed virtual resource block DVRB unit group, the distributed virtual resource block DVRB allocated to the area X is arranged in the order of DVRB13, DVRB15, DVRB17, DVRB14, DVRB16, DVRB18, and the distributed virtual resource block allocated to the area Y. DVRB is arranged in the order of DVRB1, DVRB3, DVRB5, DVRB2, DVRB4, DVRB6, and the distributed virtual resource block DVRB allocated to the area Z is arranged in the order of DVRB7, DVRB9, DVRB11, DVRB8, DVRB10, DVRB12.

  Also, the third distributed virtual resource block DVRB unit group is distributed virtual resource blocks allocated to the area X of the second distributed virtual resource block DVRB unit group as shown in FIG. 26 by the sixth step described above. The DVRB is the region Y, the distributed virtual resource block DVRB assigned to the region Y is the region Z, and the distributed virtual resource block DVRB assigned to the region Z is the region X. That is, in the third distributed virtual resource block DVRB unit group, the distributed virtual resource blocks DVRB allocated to the region X are arranged in the order of DVRB7, DVRB9, DVRB11, DVRB8, DVRB10, DVRB12, and distributed virtual resource blocks allocated to the region Y. DVRB is arranged in the order of DVRB13, DVRB15, DVRB17, DVRB14, DVRB16, DVRB18, and the distributed virtual resource block DVRB allocated to the region Z is arranged in the order of DVRB1, DVRB3, DVRB5, DVRB2, DVRB4, DVRB6.

  FIG. 27 is a diagram illustrating a fourth example of the association rule between the distributed virtual resource block DVRB and the physical resource block PRB pair. In FIG. 27, the horizontal axis represents frequency, and each square represents the area of each slot in the physical resource block PRB pair. Each of the squares, ie, DVRB1, DVRB2,. The symbols PRB1, PRB2,... PRB18 attached to indicate that the PRB number of the first physical resource block PRB of the physical resource block PRB pair in the corresponding region is 1, 2,.

  By the seventh step described above, the first distributed virtual resource block DVRB unit group generated in the fifth step is associated with the physical resource block PRB pair having the PRB numbers 1 to 6, and the PRB numbers 7 to 12 are assigned. The second distributed virtual resource block DVRB unit group generated in the sixth step is associated with the physical resource block PRB pair, and generated in the sixth step for the physical resource block PRB pairs with the PRB numbers 13 to 18 The third distributed virtual resource block DVRB unit group is associated.

  Further, region X is associated with region A (fourth, seventh, tenth and thirteenth OFDM symbols) obtained by dividing the subframe by OFDM symbol base hopping, and region Y is subframe region B (sixth). Region Z is associated with subframe region C (5th, 8th, 11th and 14th OFDM symbols). As a result, as shown in FIG. 27, for each physical resource block PRB pair with PRB numbers 1 to 18, the VRB numbers are 1, 3, 5, 2, 4, 6, 13, 15, 17, 14, 16, 18, 7, 9, 11, 8, 10, 12 distributed virtual resource blocks DVRB are allocated, and each region B has 7, 9, 11, 8, 10, 12, 1, 3, 5, 2, 4, 6, 13, 15, 17, 14, 16, 18, distributed virtual resource blocks DVRB are allocated, and each region C has 13, 15, 17, 14, 16, The distributed virtual resource blocks DVRB of 18, 7, 9, 11, 8, 10, 12, 1, 3, 5, 2, 4, 6 are allocated.

  Next, a fifth example of the association rule between the distributed virtual resource block DVRB and the physical resource block PRB pair will be described with reference to FIGS. FIG. 28A is a diagram showing a physical resource block PRB pair of the system bandwidth in the fifth association rule example. In FIG. 28A, frequency is plotted on the horizontal axis, and each square indicates a physical resource block PRB pair. Represents something.

  In the fifth association rule example, a case will be described in which the multiplexing number Nd is “3”, the total number N_PRB of physical resource block PRB pairs of the system bandwidth is “15”, and the number of sets M is “2”. For simplification of description, portions different from the first association rule example shown in FIGS. Since the total number N_PRB of the physical resource blocks is “15” and the multiplexing number Nd is “3”, in the fifth association rule example, as shown in FIG. The total number N_DVRB of the distributed virtual resource blocks DVRB is “15”, and the distributed virtual resource blocks DVRB1 to DVRB15 are associated with each other.

  FIG. 29 is a diagram showing the distributed virtual resource block DVRB unit in the fifth example of association rule. In the case of the fifth association rule example, five distributed virtual resource block DVRB units DU1 to DU5 are configured by the second and third steps described above as shown in FIG. In each region X of the five distributed virtual resource blocks DVRB units DU1 to DU5, distributed virtual resource blocks DVRB (reference numerals DVRB1, DVRB2, DVRB3, DVRB4, DVRB5) with VRB numbers 1, 2, 3, 4, 5 are provided. Assigned. Further, in each area Y of the five distributed virtual resource block DVRB units DU1 to DU5, distributed virtual resource blocks DVRB (reference numerals DVRB6, DVRB7, DVRB8, DVRB9, DVRB10) having VRB numbers 6, 7, 8, 9, 10 are provided. ) Is assigned. In addition, in each of the five distributed virtual resource block DVRB units DU1 to DU5 in the area Z, distributed virtual resource blocks DVRB (reference numerals DVRB11, DVRB12, DVRB13, DVRB14, DVRB15) having VRB numbers 11, 12, 13, 14, 15 are provided. ) Is assigned.

  FIG. 30 is a diagram showing a distributed virtual resource block DVRB unit set in the fifth association rule example. As shown in FIG. 30, from the five distributed virtual resource block DVRB units, the distributed virtual resource block DVRB unit set constituted by 2 (M) distributed virtual resource block DVRB units is obtained by the fourth step described above. Three (DUS1 to DUS3) (rounded up by dividing 5 by 2: CEILING (5/2)) are generated. The distributed virtual resource block DVRB unit set DUS1 is composed of distributed virtual resource blocks DVRB units DU1 and DU2. Similarly, the distributed virtual resource block DVRB unit set DUS2 is composed of distributed virtual resource block DVRB units DU3 and DU4. Similarly, the distributed virtual resource block DVRB unit set DUS3 is composed of the distributed virtual resource block DVRB unit DU5 and a blank.

  FIG. 31 is a diagram illustrating the first, second, and third distributed virtual resource block DVRB unit groups in the fifth association rule example. As a result of the fifth step, the first distributed virtual resource block DVRB unit group has the distributed virtual resource block DVRB units arranged in the order of DU1, DU3, DU5, DU2, and DU4 as shown in FIG. . At this time, the blank of the distributed virtual resource block DVRB unit set DUS3 is not assigned to the first distributed virtual resource block DVRB unit group. That is, the distributed virtual resource blocks DVRB allocated to the region X are arranged in the order of DVRB1, DVRB3, DVRB5, DVRB2, and DVRB4, and the distributed virtual resource blocks DVRB allocated to the region Y are DVRB6, DVRB8, DVRB10, DVRB7, and DVRB9. The distributed virtual resource blocks DVRB allocated to the region Z are arranged in the order of DVRB11, DVRB13, DVRB15, DVRB12, DVRB14.

  Further, the second distributed virtual resource block DVRB unit group is distributed virtual resource blocks allocated to the area X of the first distributed virtual resource block DVRB unit group as shown in FIG. 31 by the sixth step described above. The DVRB is the region Y, the distributed virtual resource block DVRB assigned to the region Y is the region Z, and the distributed virtual resource block DVRB assigned to the region Z is the region X. That is, in the second distributed virtual resource block DVRB unit group, the distributed virtual resource block DVRB allocated to the region X is arranged in the order of DVRB11, DVRB13, DVRB15, DVRB12, DVRB14, and the distributed virtual resource block DVRB allocated to the region Y is , DVRB1, DVRB3, DVRB5, DVRB2, DVRB4 are arranged in this order, and the distributed virtual resource blocks DVRB allocated to the area Z are arranged in the order of DVRB6, DVRB8, DVRB10, DVRB7, DVRB9.

  Also, the third distributed virtual resource block DVRB unit group is distributed virtual resource blocks allocated to the area X of the second distributed virtual resource block DVRB unit group as shown in FIG. The DVRB is the region Y, the distributed virtual resource block DVRB assigned to the region Y is the region Z, and the distributed virtual resource block DVRB assigned to the region Z is the region X. That is, in the third distributed virtual resource block DVRB unit group, the distributed virtual resource block DVRB allocated to the region X is arranged in the order of DVRB6, DVRB8, DVRB10, DVRB7, DVRB9, and the distributed virtual resource block DVRB allocated to the region Y is , DVRB11, DVRB13, DVRB15, DVRB12, DVRB14, and the distributed virtual resource blocks DVRB allocated to the area Z are arranged in the order of DVRB1, DVRB3, DVRB5, DVRB2, DVRB4.

  FIG. 32 is a diagram illustrating a fifth example of the association rule between the distributed virtual resource block DVRB and the physical resource block PRB pair. In FIG. 32, the horizontal axis represents frequency, and each square represents the area of each slot in the physical resource block PRB pair. Each of the squares, that is, DVRB1, DVRB2,. The symbols PRB1, PRB2,... PRB15 attached to indicate that the PRB number of the first physical resource block PRB of the physical resource block PRB pair in the corresponding region is 1, 2,.

  In the seventh step described above, the first distributed virtual resource block DVRB unit group generated in the fifth step is associated with the physical resource block PRB pairs having the PRB numbers 1 to 5, and the PRB numbers 6 to 10 are assigned. The second distributed virtual resource block DVRB unit group generated in the sixth step is associated with the physical resource block PRB pair, and generated in the sixth step for the physical resource block PRB pairs with the PRB numbers 11 to 15 The third distributed virtual resource block DVRB unit group is associated.

  Further, region X is associated with region A (fourth, seventh, tenth and thirteenth OFDM symbols) obtained by dividing the subframe by OFDM symbol base hopping, and region Y is subframe region B (sixth). Region Z is associated with subframe region C (5th, 8th, 11th and 14th OFDM symbols). As a result, as shown in FIG. 32, for each physical resource block PRB pair with PRB numbers 1 to 15, each region A has a VRB number of 1, 3, 5, 2, 4, 11, 13, 15, 12, 14, 6, 8, 10, 7, 9 distributed virtual resource blocks DVRB are allocated, and each region B has 6, 8, 10, 7, 9, 1, 3, 5, 2, 4, 11, 13, 15, 12, 14 distributed virtual resource blocks DVRB are allocated, and each region C has 11, 13, 15, 12, 14, 6, 8, 10, 7, 9, 1, 3, 5, 2, 4 distributed virtual resource blocks DVRB are allocated.

  Next, a sixth example of the association rule between the distributed virtual resource block DVRB and the physical resource block PRB pair will be described with reference to FIGS. FIG. 33A shows a physical resource block PRB pair of the system bandwidth in the sixth association rule example. In FIG. 33A, frequency is plotted on the horizontal axis, and each square represents a physical resource block PRB pair. The symbols PRB1 to PRB19 attached to these squares are physical resource block PRB pairs with PRB numbers 1 to 19, respectively. Represents something.

  In the sixth association rule example, a case will be described in which the multiplexing number Nd is “3”, the total number N_PRB of physical resource block PRB pairs of the system bandwidth is “19”, and the set number M is “2”. For simplification of description, portions different from the first association rule example shown in FIGS. Since the total number N_PRB of the physical resource block PRB pairs is “19” and the multiplexing number Nd is “3”, in the sixth association rule example, the first step described above results in FIG. As shown, the total number N_DVRB of the distributed virtual resource blocks DVRB is “18” which is the maximum value, and the distributed virtual resource blocks DVRB1 to DVRB18 are associated with each other.

  FIG. 34 is a diagram showing the distributed virtual resource block DVRB unit in the sixth association rule example. In the case of the sixth association rule example, the six distributed virtual resource block DVRB units DU1 to DU6 are configured by the above-described second and third steps as shown in FIG. In each area X of the six distributed virtual resource block DVRB units DU1 to DU6, distributed virtual resource blocks DVRB (reference numerals DVRB1, DVRB2, DVRB3, DVRB4, DVRB5) having VRB numbers 1, 2, 3, 4, 5, 6 , DVRB6).

  In addition, in each area Y of the six distributed virtual resource block DVRB units DU1 to DU6, the distributed virtual resource blocks DVRB (reference numerals DVRB7, DVRB8, DVRB9, DVRB10) with VRB numbers 7, 8, 9, 10, 11, 12 are provided. , DVRB11, DVRB12). Further, in each of the six distributed virtual resource block DVRB units DU1 to DU6 in the area Z, distributed virtual resource blocks DVRB (reference numerals DVRB13, DVRB14, DVRB15, DVRB16, VRRB numbers 13, 14, 15, 16, 17, 18) are provided. DVRB17 and DVRB18) are allocated.

  FIG. 35 is a diagram showing a distributed virtual resource block DVRB unit set in the sixth association rule example. As shown in FIG. 35, from the six distributed virtual resource block DVRB units, the distributed virtual resource block DVRB unit set composed of 2 (M) distributed virtual resource block DVRB units is obtained by the fourth step described above. Three (DUS1 to DUS3) are generated. The distributed virtual resource block DVRB unit set DUS1 is composed of distributed virtual resource blocks DVRB units DU1 and DU2. Similarly, the distributed virtual resource block DVRB unit set DUS2 is composed of distributed virtual resource block DVRB units DU3 and DU4. Similarly, the distributed virtual resource block DVRB unit set DUS3 is composed of distributed virtual resource block DVRB units DU5 and DU6.

  FIG. 36 is a diagram illustrating the first, second, and third distributed virtual resource block DVRB unit groups in the sixth association rule example. According to the fifth step described above, the primary distributed virtual resource block DVRB unit group has the distributed virtual resource block DVRB units arranged in the order of DU1, DU3, DU5, DU2, DU4, DU6 as shown in FIG. It becomes. That is, the distributed virtual resource blocks DVRB allocated to the region X are arranged in the order of DVRB1, DVRB3, DVRB5, DVRB2, DVRB4, DVRB6, and the distributed virtual resource blocks DVRB allocated to the region Y are DVRB7, DVRB9, DVRB10, DVRB10, DVRB10, DVRB10, , DVRB12 and the distributed virtual resource blocks DVRB allocated to the region Z are arranged in the order of DVRB13, DVRB15, DVRB17, DVRB14, DVRB16, DVRB18.

  Also, the second distributed virtual resource block DVRB unit group is distributed virtual resource blocks allocated to the area X of the first distributed virtual resource block DVRB unit group as shown in FIG. The DVRB is the region Y, the distributed virtual resource block DVRB assigned to the region Y is the region Z, and the distributed virtual resource block DVRB assigned to the region Z is the region X. That is, in the second distributed virtual resource block DVRB unit group, the distributed virtual resource block DVRB allocated to the area X is arranged in the order of DVRB13, DVRB15, DVRB17, DVRB14, DVRB16, DVRB18, and the distributed virtual resource block allocated to the area Y. DVRB is arranged in the order of DVRB1, DVRB3, DVRB5, DVRB2, DVRB4, DVRB6, and the distributed virtual resource block DVRB allocated to the area Z is arranged in the order of DVRB7, DVRB9, DVRB11, DVRB8, DVRB10, DVRB12.

  Also, the third distributed virtual resource block DVRB unit group is distributed virtual resource blocks allocated to the area X of the second distributed virtual resource block DVRB unit group as shown in FIG. 36 by the sixth step described above. The DVRB is the region Y, the distributed virtual resource block DVRB assigned to the region Y is the region Z, and the distributed virtual resource block DVRB assigned to the region Z is the region X. That is, in the third distributed virtual resource block DVRB unit group, the distributed virtual resource blocks DVRB allocated to the region X are arranged in the order of DVRB7, DVRB9, DVRB11, DVRB8, DVRB10, DVRB12, and distributed virtual resource blocks allocated to the region Y. DVRB is arranged in the order of DVRB13, DVRB15, DVRB17, DVRB14, DVRB16, DVRB18, and the distributed virtual resource block DVRB allocated to the region Z is arranged in the order of DVRB1, DVRB3, DVRB5, DVRB2, DVRB4, DVRB6.

  FIGS. 37A and 37B are diagrams illustrating a sixth example of the association rule between the distributed virtual resource block DVRB and the physical resource block PRB pair. In FIG. 37A and FIG. 37B, the horizontal axis represents frequency, and each square represents the area of each slot in the physical resource block PRB pair. Each of the squares, ie, DVRB1, DVRB2,. The symbols PRB1, PRB2,... PRB19 attached to indicate that the PRB number of the first physical resource block PRB of the physical resource block PRB pair in the corresponding region is 1, 2,.

  In this sixth association rule example, since the physical resource block PRB pair N_PRB “19” is one more than the total number N_DVRB “18” of the distributed virtual resource blocks DVRB, the first, second and second physical resource block PRB pairs are included. When associating the third distributed virtual resource block DVRB unit group, a blank is associated with any physical resource block PRB pair. At this time, it is desirable that the blank is associated not between the end portions of the system bandwidth but between the distributed virtual resource block DVRB unit groups. In this way, the frequency difference between the distributed virtual resource block DVRB unit groups can be expanded by the physical resource block PRB pair associated with the blank.

  In the example of FIG. 37A, the first distributed virtual resource block DVRB unit group generated in the fifth step is associated with the physical resource block PRB pairs of PRB numbers 1 to 6 by the seventh step described above. And the second distributed virtual resource block DVRB unit group generated in the sixth step is associated with the physical resource block PRB pairs with the PRB numbers 7 to 12, the blank is associated with the PRB number 13, and the PRB. The third distributed virtual resource block DVRB unit group generated in the sixth step is associated with the physical resource block PRB pairs of numbers 14 to 19.

  Further, region X is associated with region A (fourth, seventh, tenth and thirteenth OFDM symbols) obtained by dividing the subframe by OFDM symbol base hopping, and region Y is subframe region B (sixth). Region Z is associated with subframe region C (5th, 8th, 11th and 14th OFDM symbols). As a result, as shown in FIG. 37 (a), with respect to the physical resource block PRB pairs of PRB numbers 1 to 18, each region A has VRB numbers 1, 3, 5, 2, 4, 6 , 13, 15, 17, 14, 16, 18, blank, 7, 9, 11, 8, 10, 12 distributed virtual resource blocks DVRB are allocated, and each region B has 7, 9, 11, 8 10, 12, 1, 3, 5, 2, 4, 6, blank, 13, 15, 17, 14, 16, 18 distributed virtual resource blocks DVRB are allocated, and each region C has 13, 15 , 17, 14, 16, 18, 7, 9, 11, 8, 10, 12, blank 1, 3, 5, 2, 4, 6 distributed virtual resource blocks DVRB are allocated.

  In the example of FIG. 37 (b), the first distributed virtual resource block DVRB unit group generated in the fifth step is associated with the physical resource block PRB pairs of PRB numbers 1 to 6 by the seventh step described above. The PRB number 7 is associated with a blank, the physical resource block PRB pair with the PRB numbers 8 to 13 is associated with the second distributed virtual resource block DVRB unit group generated in the sixth step, and the PRB The third distributed virtual resource block DVRB unit group generated in the sixth step is associated with the physical resource block PRB pairs with numbers 14 to 19.

  Further, region X is associated with region A (fourth, seventh, tenth and thirteenth OFDM symbols) obtained by dividing the subframe by OFDM symbol base hopping, and region Y is subframe region B (sixth). Region Z is associated with subframe region C (5th, 8th, 11th and 14th OFDM symbols).

  As a result, as shown in FIG. 37 (b), the VRB numbers are 1, 3, 5, 2, 4, 6 in each region A for the physical resource block PRB pairs of PRB numbers 1 to 18. , Blank, 13, 15, 17, 14, 16, 18, 7, 9, 11, 8, 10, 12, and 12 distributed virtual resource blocks DVRB are allocated, and each region B has 7, 9, 11, 8 10, 12, blank 1, 3, 5, 2, 4, 6, 13, 15, 17, 14, 16, 18 distributed virtual resource blocks DVRB are allocated, and each region C has 13, 15 , 17, 14, 16, 18, blanks 7, 9, 11, 8, 10, 12, 1, 3, 5, 2, 4, 6 distributed virtual resource blocks DVRB are allocated.

  Next, a seventh example of the association rule between the distributed virtual resource block DVRB and the physical resource block PRB pair will be described with reference to FIGS. FIG. 38A is a diagram showing physical resource block PRB pairs of the system bandwidth in the seventh association rule example. In FIG. 38 (a), the frequency is plotted on the horizontal axis, and each square indicates a physical resource block PRB pair. The symbols PRB1 to PRB20 attached to these squares are the physical resource block PRB pairs of PRB numbers 1 to 20, respectively. Represents something.

  In the seventh association rule example, a case will be described in which the multiplexing number Nd is “3”, the total number N_PRB of physical resource block PRB pairs of the system bandwidth is “20”, and the set number M is “2”. For simplification of description, portions different from the first association rule example shown in FIGS. Since the total number N_PRB of the physical resource blocks is “20” and the multiplexing number Nd is “3”, in the seventh association rule example, as shown in FIG. Further, the total number N_DVRB of the distributed virtual resource blocks DVRB is set to “18” which is the maximum value, and the distributed virtual resource blocks DVRB1 to DVRB18 are associated with each other.

  FIG. 39 is a diagram showing the distributed virtual resource block DVRB unit in the seventh association rule example. In the case of the seventh association rule example, six distributed virtual resource block DVRB units DU1 to DU6 are configured by the second and third steps described above as shown in FIG. In each area X of the six distributed virtual resource block DVRB units DU1 to DU6, distributed virtual resource blocks DVRB (reference numerals DVRB1, DVRB2, DVRB3, DVRB4, DVRB5) having VRB numbers 1, 2, 3, 4, 5, 6 , DVRB6). In addition, in each area Y of the six distributed virtual resource block DVRB units DU1 to DU6, the distributed virtual resource blocks DVRB (reference numerals DVRB7, DVRB8, DVRB9, DVRB10) with VRB numbers 7, 8, 9, 10, 11, 12 are provided. , DVRB11, DVRB12). In addition, in each of the six distributed virtual resource block DVRB units DU1 to DU5 in the area Z, distributed virtual resource blocks DVRB (reference numerals DVRB13, DVRB14, DVRB15, DVRB16) with VRB numbers 13, 14, 15, 16, 17, 18 are provided. , DVRB17, DVRB18).

  FIG. 40 is a diagram showing a distributed virtual resource block DVRB unit set in the seventh association rule example. As shown in FIG. 40, from the six distributed virtual resource block DVRB units, the distributed virtual resource block DVRB unit set composed of 2 (M) distributed virtual resource block DVRB units is obtained by the fourth step described above. Three (DUS1 to DUS3)) are generated. The distributed virtual resource block DVRB unit set DUS1 is composed of distributed virtual resource blocks DVRB units DU1 and DU2. Similarly, the distributed virtual resource block DVRB unit set DUS2 is composed of distributed virtual resource block DVRB units DU3 and DU4. Similarly, the distributed virtual resource block DVRB unit set DUS3 is composed of distributed virtual resource block DVRB units DU5 and DU6.

  FIG. 41 is a diagram illustrating the first, second, and third distributed virtual resource block DVRB unit groups in the seventh association rule example. As a result of the fifth step, the first distributed virtual resource block DVRB unit group has the distributed virtual resource block DVRB units arranged in the order of DU1, DU3, DU5, DU2, DU4, and DU6 as shown in FIG. It becomes. That is, the distributed virtual resource blocks DVRB allocated to the region X are arranged in the order of DVRB1, DVRB3, DVRB5, DVRB2, DVRB4, DVRB6, and the distributed virtual resource blocks DVRB allocated to the region Y are DVRB7, DVRB9, DVRB10, DVRB10, DVRB10, DVRB10, , DVRB12 and the distributed virtual resource blocks DVRB allocated to the region Z are arranged in the order of DVRB13, DVRB15, DVRB17, DVRB14, DVRB16, DVRB18.

  Further, the second distributed virtual resource block DVRB unit group is distributed virtual resource blocks allocated to the area X of the first distributed virtual resource block DVRB unit group as shown in FIG. 41 by the sixth step described above. The DVRB is the region Y, the distributed virtual resource block DVRB assigned to the region Y is the region Z, and the distributed virtual resource block DVRB assigned to the region Z is the region X. That is, in the second distributed virtual resource block DVRB unit group, the distributed virtual resource block DVRB allocated to the area X is arranged in the order of DVRB13, DVRB15, DVRB17, DVRB14, DVRB16, DVRB18, and the distributed virtual resource block allocated to the area Y. DVRB is arranged in the order of DVRB1, DVRB3, DVRB5, DVRB2, DVRB4, DVRB6, and the distributed virtual resource block DVRB allocated to the area Z is arranged in the order of DVRB7, DVRB9, DVRB11, DVRB8, DVRB10, DVRB12.

  In addition, the third distributed virtual resource block DVRB unit group is the distributed virtual resource block allocated to the area X of the second distributed virtual resource block DVRB unit group as shown in FIG. 41 by the sixth step described above. The DVRB is the region Y, the distributed virtual resource block DVRB assigned to the region Y is the region Z, and the distributed virtual resource block DVRB assigned to the region Z is the region X. That is, in the third distributed virtual resource block DVRB unit group, the distributed virtual resource blocks DVRB allocated to the region X are arranged in the order of DVRB7, DVRB9, DVRB11, DVRB8, DVRB10, DVRB12, and distributed virtual resource blocks allocated to the region Y. DVRB is arranged in the order of DVRB13, DVRB15, DVRB17, DVRB14, DVRB16, DVRB18, and the distributed virtual resource block DVRB allocated to the region Z is arranged in the order of DVRB1, DVRB3, DVRB5, DVRB2, DVRB4, DVRB6.

  FIG. 42 is a diagram illustrating a seventh example of the association rule between the distributed virtual resource block DVRB and the physical resource block PRB pair. In FIG. 42, the horizontal axis indicates the frequency, and each square indicates the area of each slot in the physical resource block PRB pair. Each of the squares, ie, DVRB1, DVRB2,. The symbols PRB1, PRB2,... PRB20 attached to indicate that the PRB number of the first physical resource block PRB of the physical resource block PRB pair in the corresponding region is 1, 2,.

  In the seventh association rule example, since the physical resource block PRB pair has two physical resource block PRB pairs N_PRB “20” more than the total number N_DVRB “18” of the distributed virtual resource blocks DVRB, the first, second and When associating the third distributed virtual resource block DVRB unit group, a blank is associated with any two physical resource block PRB pairs. At this time, it is desirable that the blank is associated not between the end portions of the system bandwidth but between the distributed virtual resource block DVRB unit groups. By doing in this way, the frequency difference between the distributed virtual resource block DVRB unit groups can be expanded by the physical resource block PRB pair associated with the blank.

  The first distributed virtual resource block DVRB unit group generated in the fifth step is associated with the physical resource block PRB pairs of PRB numbers 1 to 6 by the seventh step described above, and the physical resource of PRB number 7 A blank is associated with the block PRB pair, the second distributed virtual resource block DVRB unit group generated in the sixth step is associated with the physical resource block PRB pair with the PRB numbers 8 to 13, and the PRB number 14 physical resource block PRB pairs are associated with blanks, and physical resource block PRB pairs with PRB numbers 15 to 20 are associated with the third distributed virtual resource block DVRB unit group generated in the sixth step. To do.

  Further, region X is associated with region A (fourth, seventh, tenth and thirteenth OFDM symbols) obtained by dividing the subframe by OFDM symbol base hopping, and region Y is subframe region B (sixth). Region Z is associated with subframe region C (5th, 8th, 11th and 14th OFDM symbols). Thus, as shown in FIG. 42, for each physical resource block PRB pair with PRB numbers 1 to 20, each region A has a VRB number of 1, 3, 5, 2, 4, 6, blank, 13, 15, 17, 14, 16, 18, blank, 7, 9, 11, 8, 10, 12 distributed virtual resource blocks DVRB are allocated, and each region B has 7, 9, 11, 8, 10, 12, blank 1, 3, 5, 2, 4, 6, blank, 13, 15, 17, 14, 16, 18 distributed virtual resource blocks DVRB are allocated, and each region C has 13, 15, 17, 14, 16, 18, blanks 7, 9, 11, 8, 10, 12, blanks 1, 3, 5, 2, 4, 6 distributed virtual resource blocks DVRB are allocated.

  Next, an eighth example of the association rule between the distributed virtual resource block DVRB and the physical resource block PRB pair will be described with reference to FIGS. FIG. 43A shows a physical resource block PRB pair of the system bandwidth in the eighth association rule example. In FIG. 43 (a), the frequency is plotted on the horizontal axis, and each square represents a physical resource block PRB pair. The symbols PRB1 to PRB18 attached to these squares are physical resource block PRB pairs with PRB numbers 1 to 18, respectively. Represents something.

  In the eighth association rule example, a case will be described in which the multiplexing number Nd is “3”, the total number N_PRB of physical resource block PRB pairs of the system bandwidth is “18”, and the number of sets M is “3”. For simplification of description, portions different from the first association rule example shown in FIGS. Since the total number N_PRB of the physical resource blocks is “18” and the multiplexing number Nd is “3”, in the fifth association rule example, as shown in FIG. As described above, the total number N_DVRB of the distributed virtual resource blocks DVRB is set to “18” which is the maximum value, and the distributed virtual resource blocks DVRB1 to DVRB18 are associated with each other.

  FIG. 44 is a diagram showing the distributed virtual resource block DVRB unit in the eighth association rule example. In the case of the eighth association rule example, six distributed virtual resource block DVRB units DU1 to DU6 are configured by the second and third steps described above, as shown in FIG. In each area X of the six distributed virtual resource block DVRB units DU1 to DU6, distributed virtual resource blocks DVRB (reference numerals DVRB1, DVRB2, DVRB3, DVRB4, DVRB5) having VRB numbers 1, 2, 3, 4, 5, 6 , DVRB6). In addition, in each area Y of the six distributed virtual resource block DVRB units DU1 to DU6, the distributed virtual resource blocks DVRB (reference numerals DVRB7, DVRB8, DVRB9, DVRB10) with VRB numbers 7, 8, 9, 10, 11, 12 are provided. , DVRB11, DVRB12). In addition, in each of the six distributed virtual resource block DVRB units DU1 to DU6 in the area Z, distributed virtual resource blocks DVRB (reference numerals DVRB13, DVRB14, DVRB15, DVRB16) with VRB numbers 13, 14, 15, 16, 17, 18 are provided. , DVRB17, DVRB18).

  FIG. 45 is a diagram showing a distributed virtual resource block DVRB unit set in the eighth association rule example. As shown in FIG. 45, from the six distributed virtual resource block DVRB units, the distributed virtual resource block DVRB unit set constituted by 3 (M) distributed virtual resource block DVRB units is obtained by the aforementioned fourth step. Two pieces (DUS1 to DUS2) (rounded up by dividing 6 by 3: CEILING (6/3)) are generated. The distributed virtual resource block DVRB unit set DUS1 is composed of distributed virtual resource block DVRB units DU1, DU2, and DU3. Similarly, the distributed virtual resource block DVRB unit set DUS2 is composed of distributed virtual resource block DVRB units DU4, DU5, and DU6. Here, numbering (1-1, 1-2, 1-3, 2-1, 2-2, 2-3) in each distributed virtual resource block DVRB unit set relating to each distributed virtual resource block DVRB unit DU1 to DU6. )I do.

  FIG. 46 is a diagram illustrating the first, second, and third distributed virtual resource block DVRB unit groups in the eighth association rule example. Through the fifth step, the first distributed virtual resource block DVRB unit group is configured by all the distributed virtual resource block DVRB units. That is, in the first distributed virtual resource block DVRB unit group, the distributed virtual resource block DVRB unit set DUS1, DUS2 is added from the smallest numbered one, that is, the distributed virtual resource block DVRB unit set. 1-1 of DUS1, 2-1 of distributed virtual resource block DVRB unit set DUS2, 1-2 of distributed virtual resource block DVRB unit set DUS1, 2-2 of distributed virtual resource block DVRB unit set DUS2, distributed virtual resource block DVRB The units are added in the order of unit set DUS1 1-3 and distributed virtual resource block DVRB unit set DUS2 2-3.

  As a result, in the first distributed virtual resource block DVRB unit group, the distributed virtual resource block DVRB units are arranged in the order of DU1, DU4, DU2, DU5, DU3, and DU6 as shown in FIG. That is, the distributed virtual resource blocks DVRB allocated to the region X are arranged in the order of DVRB1, DVRB4, DVRB2, DVRB5, DVRB3, DVRB6, and the distributed virtual resource blocks DVRB allocated to the region Y are DVRB7, DVRB10, DVRB8, DVRB9, DVRB9, DVRB9 , DVRB12 and the distributed virtual resource blocks DVRB allocated to the area Z are arranged in the order of DVRB13, DVRB16, DVRB14, DVRB17, DVRB15, DVRB18.

  Also, the second distributed virtual resource block DVRB unit group is distributed virtual resource blocks allocated to the area X of the first distributed virtual resource block DVRB unit group as shown in FIG. 46 by the sixth step described above. The DVRB is the region Y, the distributed virtual resource block DVRB assigned to the region Y is the region Z, and the distributed virtual resource block DVRB assigned to the region Z is the region X. That is, in the second distributed virtual resource block DVRB unit group, the distributed virtual resource block DVRB allocated to the area X is arranged in the order of DVRB13, DVRB16, DVRB14, DVRB17, DVRB15, DVRB18, and the distributed virtual resource block allocated to the area Y. DVRB is arranged in the order of DVRB1, DVRB4, DVRB2, DVRB5, DVRB3, DVRB6, and the distributed virtual resource block DVRB allocated to the region Z is arranged in the order of DVRB7, DVRB10, DVRB8, DVRB11, DVRB9, DVRB12.

  In addition, the third distributed virtual resource block DVRB unit group is the distributed virtual resource block allocated to the area X of the second distributed virtual resource block DVRB unit group as shown in FIG. The DVRB is the region Y, the distributed virtual resource block DVRB assigned to the region Y is the region Z, and the distributed virtual resource block DVRB assigned to the region Z is the region X. That is, in the third distributed virtual resource block DVRB unit group, the distributed virtual resource blocks DVRB allocated to the region X are arranged in the order of DVRB7, DVRB10, DVRB8, DVRB11, DVRB9, DVRB12, and distributed virtual resource blocks allocated to the region Y. The DVRBs are arranged in the order of DVRB13, DVRB16, DVRB14, DVRB17, DVRB15, DVRB18, and the distributed virtual resource block DVRB allocated to the region Z is arranged in the order of DVRB1, DVRB4, DVRB2, DVRB5, DVRB3, DVRB6.

  FIG. 47 is a diagram illustrating an eighth example of the association rule between the distributed virtual resource block DVRB and the physical resource block PRB pair. In FIG. 47, the horizontal axis represents frequency, and each square represents the area of each slot in the physical resource block PRB pair. Each of the squares, ie, DVRB1, DVRB2,. The symbols PRB1, PRB2,... PRB18 attached to indicate that the PRB number of the first physical resource block PRB of the physical resource block PRB pair in the corresponding region is 1, 2,.

  By the seventh step described above, the first distributed virtual resource block DVRB unit group generated in the fifth step is associated with the physical resource block PRB pair having the PRB numbers 1 to 6, and the PRB numbers 7 to 12 are assigned. The second distributed virtual resource block DVRB unit group generated in the sixth step is associated with the physical resource block PRB pair, and generated in the sixth step for the physical resource block PRB pairs with the PRB numbers 13 to 18 The third distributed virtual resource block DVRB unit group is associated.

  Further, region X is associated with region A (fourth, seventh, tenth and thirteenth OFDM symbols) obtained by dividing the subframe by OFDM symbol base hopping, and region Y is subframe region B (sixth). Region Z is associated with subframe region C (5th, 8th, 11th and 14th OFDM symbols). As a result, as shown in FIG. 47, for each physical resource block PRB pair with PRB numbers 1 to 18, the VRB numbers are 1, 4, 2, 5, 3, 6, 13, 16, 14, 17, 15, 18, 7, 10, 8, 11, 9, 12 distributed virtual resource blocks DVRB are allocated, and each region B has 7, 10, 8, 11, 9, 12, 1, 4, 2, 5, 3, 6, 13, 16, 14, 17, 15, 18, distributed virtual resource blocks DVRB are allocated, and each region C has 13, 16, 14, 17, 15, The distributed virtual resource blocks DVRB of 18, 7, 10, 8, 11, 9, 12, 1, 4, 2, 5, 3, 6 are allocated.

  Next, a ninth example of the association rule between the distributed virtual resource block DVRB and the physical resource block PRB pair will be described with reference to FIGS. FIG. 48A shows a physical resource block PRB pair of the system bandwidth in the ninth association rule example. In FIG. 48A, frequency is plotted on the horizontal axis, and each square indicates a physical resource block PRB pair. Represents something.

  In the ninth association rule example, a case will be described in which the multiplexing number Nd is “3”, the total number N_PRB of physical resource block PRB pairs of the system bandwidth is “21”, and the number of sets M is “3”. For simplification of description, portions different from the first association rule example shown in FIGS. Since the total number N_PRB of the physical resource blocks is “21” and the multiplexing number Nd is “3”, in the ninth association rule example, as shown in FIG. The total number N_DVRB of the distributed virtual resource blocks DVRB is set to “21” which is the maximum value, and the distributed virtual resource blocks DVRB1 to DVRB21 are associated with each other.

  FIG. 49 is a diagram showing the distributed virtual resource block DVRB unit in the ninth association rule example. In the case of the ninth association rule example, seven distributed virtual resource block DVRB units DU1 to DU7 are configured by the second and third steps described above, as shown in FIG. In each region X of the seven distributed virtual resource block DVRB units DU1 to DU7, distributed virtual resource blocks DVRB (reference numerals DVRB1, DVRB2, DVRB3, DVRB4) with VRB numbers 1, 2, 3, 4, 5, 6, 7 are provided. , DVRB5, DVRB6, DVRB7). In addition, in each area Y of the seven distributed virtual resource block DVRB units DU1 to DU7, distributed virtual resource blocks DVRB (reference numerals DVRB8, DVRB9, DVRB10) having VRB numbers of 8, 9, 10, 11, 12, 13, 14 are provided. , DVRB11, DVRB12, DVRB13, DVRB14). Further, in each of the seven distributed virtual resource block DVRB units DU1 to DU7 in the area Z, the distributed virtual resource blocks DVRB (reference numerals DVRB15, DVRB16, DVRB17) with VRB numbers 15, 16, 17, 18, 19, 20, 21 are provided. , DVRB18, DVRB19, DVRB20, DVRB21).

  FIG. 50 is a diagram showing a distributed virtual resource block DVRB unit set in the ninth association rule example. As shown in FIG. 50, from the seven distributed virtual resource block DVRB units, the distributed virtual resource block DVRB unit set constituted by 3 (M) distributed virtual resource block DVRB units is obtained by the fourth step described above. Three pieces (DUS1 to DUS3) (rounded up by dividing 7 by 3: CEILING (7/2)) are generated. The distributed virtual resource block DVRB unit set DUS1 is composed of distributed virtual resource block DVRB units DU1, DU2, and DU3. Similarly, the distributed virtual resource block DVRB unit set DUS2 is composed of distributed virtual resource block DVRB units DU4, DU5, and DU6. The distributed virtual resource block DVRB unit set DUS3 is composed of a distributed virtual resource block DVRB unit DU7 and two distributed virtual resource block DVRB units consisting of blanks.

  FIG. 51 is a diagram showing the first, second, and third distributed virtual resource block DVRB unit groups in the ninth association rule example. As a result of the fifth step described above, in the first distributed virtual resource block DVRB unit group, the distributed virtual resource block DVRB units are arranged in the order of DU1, DU4, DU7, DU2, DU5, DU3, and DU6 as shown in FIG. It will be. At this time, the blank of the distributed virtual resource block DVRB unit set DUS3 is not assigned to the first distributed virtual resource block DVRB unit group. That is, the distributed virtual resource blocks DVRB allocated to the region X are arranged in the order of DVRB1, DVRB4, DVRB7, DVRB2, DVRB5, DVRB3, DVRB6, and the distributed virtual resource blocks DVRB allocated to the region Y are DVRB8, DVRB11, DVRB9, DVRB14, DVRB14 , DVRB12, DVRB10, DVRB13 are arranged in this order, and the distributed virtual resource blocks DVRB allocated to the region Z are arranged in the order of DVRB15, DVRB18, DVRB21, DVRB16, DVRB19, DVRB17, DVRB20.

  Also, the second distributed virtual resource block DVRB unit group is distributed virtual resource blocks allocated to the area X of the first distributed virtual resource block DVRB unit group as shown in FIG. The DVRB is the region Y, the distributed virtual resource block DVRB assigned to the region Y is the region Z, and the distributed virtual resource block DVRB assigned to the region Z is the region X. That is, in the second distributed virtual resource block DVRB unit group, the distributed virtual resource blocks DVRB allocated to the region X are arranged in the order of DVRB15, DVRB18, DVRB21, DVRB16, DVRB19, DVRB17, DVRB20, and distributed virtual resources allocated to the region Y. The resource blocks DVRB are arranged in the order of DVRB1, DVRB4, DVRB7, DVRB2, DVRB5, DVRB3, DVRB6. It will be.

  Also, the third distributed virtual resource block DVRB unit group is distributed virtual resource blocks allocated to the area X of the second distributed virtual resource block DVRB unit group as shown in FIG. The DVRB is the region Y, the distributed virtual resource block DVRB assigned to the region Y is the region Z, and the distributed virtual resource block DVRB assigned to the region Z is the region X. That is, in the third distributed virtual resource block DVRB unit group, the distributed virtual resource blocks DVRB allocated to the region X are arranged in the order of DVRB8, DVRB11, DVRB14, DVRB9, DVRB12, DVRB10, DVRB13, and distributed virtual resources allocated to the region Y. The resource blocks DVRB are arranged in the order of DVRB15, DVRB18, DVRB21, DVRB16, DVRB19, DVRB17, DVRB20, and the distributed virtual resource block DVRB allocated to the area Z is arranged in the order of DVRB1, DVRB4, DVRB7, DVRB3, DVRD3, DVRD5, DVRD It will be.

  FIG. 52 is a diagram illustrating a ninth example of the association rule between the distributed virtual resource block DVRB and the physical resource block PRB pair. In FIG. 52, the horizontal axis represents frequency, and each square represents the area of each slot in the physical resource block PRB pair. Each of the squares, that is, DVRB1, DVRB2,. The symbols PRB1, PRB2,... PRB21 attached to indicate that the PRB number of the first physical resource block PRB of the physical resource block PRB pair in the corresponding region is 1, 2,.

  By the seventh step described above, the first distributed virtual resource block DVRB unit group generated in the fifth step is associated with the physical resource block PRB pairs having the PRB numbers 1 to 7, and the PRB numbers 8 to 14 are assigned. The second distributed virtual resource block DVRB unit group generated in the sixth step is associated with the physical resource block PRB pair, and generated in the sixth step for the physical resource block PRB pairs with the PRB numbers 15 to 21 The third distributed virtual resource block DVRB unit group is associated.

  Further, region X is associated with region A (fourth, seventh, tenth and thirteenth OFDM symbols) obtained by dividing the subframe by OFDM symbol base hopping, and region Y is subframe region B (sixth). Region Z is associated with subframe region C (5th, 8th, 11th and 14th OFDM symbols). As a result, as shown in FIG. 52, for each physical resource block PRB pair with PRB numbers 1 to 15, the VRB numbers are 1, 4, 7, 2, 5, 3, 6, 15, 18, 21, 16, 19, 17, 20, 8, 11, 14, 9, 12, 10, 13 are allocated distributed virtual resource blocks DVRB, and each region B has 8, 11, 14, 9, 12, 10, 13, 1, 4, 7, 2, 5, 3, 6, 15, 18, 21, 16, 19, 17, 20 distributed virtual resource blocks DVRB are allocated to each region C. Are distributed virtual resource blocks DVRB of 15, 18, 21, 16, 19, 17, 20, 8, 11, 14, 9, 12, 10, 13, 1, 4, 7, 2, 5, 3, 6 Assigned.

  Next, a tenth example of the association rule between the distributed virtual resource block DVRB and the physical resource block PRB pair will be described with reference to FIGS. FIG. 53A is a diagram showing a physical resource block PRB pair of the system bandwidth in the tenth association rule example. In FIG. 53 (a), the horizontal axis represents frequency, and each square represents a physical resource block PRB pair. Represents something.

  In the tenth association rule example, a case will be described in which the multiplexing number Nd is “3”, the total number N_PRB of physical resource block PRB pairs of the system bandwidth is “15”, and the set number M is “3”. For simplification of description, portions different from the first association rule example shown in FIGS. Since the total number N_PRB of physical resource blocks is “15” and the multiplex number Nd is “3”, in the tenth association rule example, as shown in FIG. Furthermore, the total number N_DVRB of the distributed virtual resource blocks DVRB is set to “15” which is the maximum value, and the distributed virtual resource blocks DVRB1 to DVRB15 are associated with each other.

  FIG. 54 is a diagram showing the distributed virtual resource block DVRB unit in the tenth association rule example. In the case of the tenth association rule example, five distributed virtual resource block DVRB units DU1 to DU5 are configured by the above-described second and third steps as shown in FIG. In each region X of the five distributed virtual resource blocks DVRB units DU1 to DU5, distributed virtual resource blocks DVRB (reference numerals DVRB1, DVRB2, DVRB3, DVRB4, DVRB5) with VRB numbers 1, 2, 3, 4, 5 are provided. Assigned. Further, in each area Y of the five distributed virtual resource block DVRB units DU1 to DU5, distributed virtual resource blocks DVRB (reference numerals DVRB6, DVRB7, DVRB8, DVRB9, DVRB10) having VRB numbers 6, 7, 8, 9, 10 are provided. ) Is assigned. In addition, in each of the five distributed virtual resource block DVRB units DU1 to DU5 in the area Z, distributed virtual resource blocks DVRB (reference numerals DVRB11, DVRB12, DVRB13, DVRB14, DVRB15) having VRB numbers 11, 12, 13, 14, 15 are provided. ) Is assigned.

  FIG. 55 is a diagram showing a distributed virtual resource block DVRB unit set in the tenth association rule example. As shown in FIG. 55, from the five distributed virtual resource block DVRB units, the distributed virtual resource block DVRB unit set constituted by 3 (M) distributed virtual resource block DVRB units is obtained by the fourth step described above. Two pieces (DUS1 to DUS2) (rounded up by dividing 5 by 3: CEILING (5/3)) are generated. The distributed virtual resource block DVRB unit set DUS1 is composed of distributed virtual resource blocks DVRB units DU1 and DU2. Similarly, the distributed virtual resource block DVRB unit set DUS2 is composed of distributed virtual resource block DVRB units DU4 and DU5 and a blank. Here, numbering (1-1, 1-2, 1-3, 2-1, 2-2, each distributed virtual resource block DVRB unit DU1 to DU5 and blanks in each distributed virtual resource block DVRB unit set) 2-3) is performed.

  FIG. 56 is a diagram showing the first, second, and third distributed virtual resource block DVRB unit groups in the tenth association rule example. Through the fifth step, the first distributed virtual resource block DVRB unit group is configured by all the distributed virtual resource block DVRB units. That is, in the first distributed virtual resource block DVRB unit group, the distributed virtual resource block DVRB unit set DUS1, DUS2 is added from the smallest numbered one, that is, the distributed virtual resource block DVRB unit set. 1-1 of DUS1, 2-1 of the distributed virtual resource block DVRB unit set DUS2, 1-2 of the distributed virtual resource block DVRB unit set DUS1, 2-2 of the distributed virtual resource block DVRB unit set DUS2, 2-2 of the distributed virtual resource block DVRB They are added in the order of unit set DUS1 1-3. At this time, 2-3 of the distributed virtual resource block DVRB unit set DUS2 which is blank is not added.

  As a result, the first distributed virtual resource block DVRB unit group has the distributed virtual resource block DVRB units arranged in the order of DU1, DU4, DU2, DU5, and DU3 as shown in FIG. That is, the distributed virtual resource blocks DVRB allocated to the area X are arranged in the order of DVRB1, DVRB4, DVRB2, DVRB5, DVRB3, and the distributed virtual resource blocks DVRB allocated to the area Y are DVRB6, DVRB9, DVRB7, DVRB10, DVRB8. The distributed virtual resource blocks DVRB allocated to the region Z are arranged in the order of DVRB11, DVRB14, DVRB12, DVRB15, DVRB13.

  Further, the second distributed virtual resource block DVRB unit group is distributed virtual resource blocks allocated to the area X of the first distributed virtual resource block DVRB unit group as shown in FIG. 56 by the sixth step described above. The DVRB is the region Y, the distributed virtual resource block DVRB assigned to the region Y is the region Z, and the distributed virtual resource block DVRB assigned to the region Z is the region X. That is, in the second distributed virtual resource block DVRB unit group, the distributed virtual resource block DVRB allocated to the region X is arranged in the order of DVRB11, DVRB14, DVRB12, DVRB15, DVRB13, and the distributed virtual resource block DVRB allocated to the region Y is , DVRB1, DVRB4, DVRB2, DVRB5, DVRB3 are arranged in this order, and the distributed virtual resource blocks DVRB allocated to the region Z are arranged in the order of DVRB6, DVRB9, DVRB7, DVRB10, DVRB8.

  Also, the third distributed virtual resource block DVRB unit group is distributed virtual resource blocks allocated to the area X of the second distributed virtual resource block DVRB unit group as shown in FIG. 56 by the sixth step described above. The DVRB is the region Y, the distributed virtual resource block DVRB assigned to the region Y is the region Z, and the distributed virtual resource block DVRB assigned to the region Z is the region X. That is, in the third distributed virtual resource block DVRB unit group, the distributed virtual resource blocks DVRB allocated to the region X are arranged in the order of DVRB7, DVRB10, DVRB8, DVRB11, DVRB9, DVRB12, and distributed virtual resource blocks allocated to the region Y. The DVRBs are arranged in the order of DVRB11, DVRB14, DVRB12, DVRB15, DVRB13, and the distributed virtual resource blocks DVRB assigned to the area Z are arranged in the order of DVRB1, DVRB4, DVRB2, DVRB5, DVRB3.

  FIG. 57 is a diagram illustrating a tenth example of the association rule between the distributed virtual resource block DVRB and the physical resource block PRB pair. In FIG. 57, the frequency is plotted on the horizontal axis, and each square indicates the area of each slot in the physical resource block PRB pair. Each of the squares, that is, DVRB1, DVRB2,. The symbols PRB1, PRB2,... PRB15 attached to indicate that the PRB number of the first physical resource block PRB of the physical resource block PRB pair in the corresponding region is 1, 2,.

  In the seventh step described above, the first distributed virtual resource block DVRB unit group generated in the fifth step is associated with the physical resource block PRB pairs having the PRB numbers 1 to 5, and the PRB numbers 6 to 10 are assigned. The second distributed virtual resource block DVRB unit group generated in the sixth step is associated with the physical resource block PRB pair, and generated in the sixth step for the physical resource block PRB pairs with the PRB numbers 11 to 15 The third distributed virtual resource block DVRB unit group is associated.

  Further, region X is associated with region A (fourth, seventh, tenth and thirteenth OFDM symbols) obtained by dividing the subframe by OFDM symbol base hopping, and region Y is subframe region B (sixth). Region Z is associated with subframe region C (5th, 8th, 11th and 14th OFDM symbols). As a result, as shown in FIG. 57, for each physical resource block PRB pair with PRB numbers 1 to 15, each region A has a VRB number of 1, 4, 2, 5, 3, 11, 14, 12, 15, 13, 6, 9, 7, 10, 8 distributed virtual resource blocks DVRB are allocated, and each region B has 6, 9, 7, 10, 8, 1, 4, 2, 5, 3, 11, 14, 12, 15, 13 distributed virtual resource blocks DVRB are allocated, and each region C has 11, 14, 12, 15, 13, 6, 9, 7, 10, 8, 1, 4, 2, 5, 3 distributed virtual resource blocks DVRB are allocated.

The base station apparatus 1 transmits information representing the system bandwidth to the mobile station apparatus 2 in advance through a broadcast channel. At this time, information indicating the total number of physical resource blocks PRB may be transmitted instead of the system bandwidth. In addition to the system bandwidth or the total number of physical resource blocks PRB, the base station apparatus 1 may transmit information representing the multiplexing number Nd, the set number M, or the number of transmission antennas used for transmission. When the multiplexing number Nd and the set number M are not transmitted on the broadcast channel, the multiplexing number is determined by the system bandwidth, and the set number M is determined by the system bandwidth, the multiplexing number, or the number of transmission antennas used for transmission.
The information base station apparatus 1 associates the distributed virtual resource block DVRB signal allocated to each mobile station apparatus 2 with the distributed virtual resource block DVRB and physical resource block PRB pair as in the above association rule examples 1 to 10. It is arranged in the downlink shared data channel of the physical resource block PRB pair according to the rule and is transmitted by distributed transmission, and includes a start VRB number representing the distributed virtual resource block DVRB allocated to each mobile station device 2 and the number of continuous VRBs Radio resource allocation information is arranged in the downlink control channel and transmitted to the mobile station apparatus 2.

  Next, a procedure in which the mobile station apparatus 2 recognizes the association rule between the distributed virtual resource block DVRB and the physical resource block PRB pair in the wireless communication system will be described. First, the reception processing unit 21 of the mobile station apparatus 2 receives the broadcast channel transmitted by concentrated transmission, and the control unit 20 acquires information on the system bandwidth included in the broadcast channel. Here, the system bandwidth and the total number of physical resource blocks PRB are associated in advance, and the control unit 20 of the mobile station apparatus 2 acquires the total number of physical resource blocks PRB based on the acquired system bandwidth information. . Note that the broadcast channel may include information on the total number of physical resource blocks PRB instead of information on the system bandwidth.

  Further, the total number of physical resource blocks PRB and the multiplexing number Nd are associated in advance, and the control unit 20 of the mobile station apparatus 2 acquires the multiplexing number Nd based on the acquired total number of physical resource blocks PRB. For example, when the total number of physical resource blocks PRB is smaller than a predetermined value, the multiplexing number Nd is associated with “2”, and when it is larger, the multiplexing number Nd is associated with “3”. In addition, the configuration may be such that information on the multiplexing number Nd is included in the broadcast channel without previously associating the multiplexing number Nd with the total number of physical resource blocks PRB.

  The set number M, which is the number of distributed virtual resource block DVRB units of the distributed virtual resource block DVRB unit set, is associated with the total number of physical resource blocks PRB in advance, and the control unit 20 of the mobile station apparatus 2 acquires the acquired physical Based on the total number of resource blocks PRB, the number of sets M is acquired. Alternatively, the set number M may be associated with the multiplexing number Nd in advance. For example, when the multiplexing number Nd is “2”, the set number M is associated with “2”, and when the multiplexing number Nd is “3”, the set number M is associated with “3”.

  Alternatively, the set number M is associated in advance with the number of transmission antennas of the base station device 1 included in the broadcast channel, and the control unit 20 of the mobile station device 2 is based on the acquired number of transmission antennas of the base station device 1. The set number M may be acquired. For example, when the number of transmission antennas of the base station apparatus 1 is 4, the set number M is associated with 2, and when the number of transmission antennas of the base station apparatus 1 is 2, the set number M is associated with 3.

  That is, when the number of transmission antennas used is small compared to the case where the number of transmission antennas used is large, the reception quality of the downlink shared data channel is greatly deteriorated. A diversity effect may be obtained. Note that the information regarding the set number M may be included in the broadcast channel without associating the set number M with the total number of physical resource blocks PRB, the multiplexing number Nd, or the number of transmission antennas of the base station apparatus 1 in advance. . As described above, the mobile station apparatus 2 recognizes the association between the distributed virtual resource block DVRB and the physical resource block PRB by acquiring information on the total number of physical resource blocks PRB, the number of multiplexing Nd, and the number of sets M.

  Next, a procedure in which the mobile station apparatus 2 recognizes and detects a resource element in which a downlink shared data channel constituting the distributed virtual resource block DVRB allocated to the mobile station apparatus 2 is recognized will be described. The mobile station apparatus 2 receives the control format indicator channel, the control format indicator detection unit 408 detects the control format indicator, and based on the control format indicator, the control unit 20 uses the downlink control channel and the downlink shared data. It recognizes the OFDM symbol in which the channel is arranged, and notifies the demultiplexing unit 405 of the separation of the downlink control channel and the downlink shared data channel based on this OFDM symbol. Here, since the control format indicator channel is arranged in a predetermined resource element, the demultiplexing unit 405 performs the separation of the control format indicator channel based on the arrangement.

  Next, according to the notification from the control unit 20, the demultiplexing unit 405 separates the downlink control channel, and the control unit 20 starts the start VRB number and the number of consecutive VRBs indicated by the radio resource allocation information included in the downlink control channel. To get. Next, the control unit 20 recognizes one or a plurality of VRB numbers of the distributed virtual resource block DVRB allocated to the mobile station apparatus 2 based on the start VRB number and the number of consecutive VRBs. The control unit 20 uses the association rule of the distributed virtual resource block DVRB and the physical resource block PRB pair acquired from the information included in the previously received broadcast channel, and the VRB number of the allocated distributed virtual resource block DVRB. Then, the physical resource block PRB and the area, that is, the resource element, in which the distributed physical resource block DVRB allocated to the own mobile station apparatus 2 is arranged are recognized. The control unit 20 instructs the demultiplexing unit 405 to demultiplex this resource element as a downlink shared data channel addressed to itself and output it to the propagation path compensation unit 412.

  In the present invention, the number of distributed virtual resource blocks DVRB allocated at a time by the number of start VRBs and the number of continuous VRBs to one mobile station device 2 for the distributed transmission by the base station apparatus 1 is equal to or less than the set number M. It is preferable. The distributed virtual resource block DVRB within the set number M (the distributed virtual resource block DVRB constituting one distributed virtual resource block DVRB unit set) is distributed and arranged in the frequency direction by the sixth step described above. is there.

  This will be described with reference to FIGS. For example, the base station apparatus 1 indicates “5” (DVRB5 in FIG. 8 (b)) as a start VRB number to a certain mobile station apparatus 2, and indicates “2” as a continuous VRB number, and a downlink shared data channel Is transmitted by the distributed transmission, the mobile station apparatus 2 transmits the distributed virtual resource blocks DVRB having the VRB numbers “5” and “6” to the two distributed virtual resource blocks DVRB (see FIG. 8 (b) ) DVRB5 and DVRB6).

  In the example of the association rule in FIG. 12, the distributed virtual resource block DVRB (DVRB5) with the VRB number “5” is associated with the first slot of the physical resource block PRB3 and the second slot of the physical resource block PRB12, and VRB The distributed virtual resource block DVRB (DVRB6) with the number “6” is associated with the first slot of the physical resource block PRB8 and the second slot of the physical resource block PRB17. That is, the mobile station apparatus 2 to which the distributed virtual resource blocks DVRB having the VRB numbers “5” and “6” are allocated has the first slot of the physical resource blocks PRB 3 and 8 and the second slot of the physical resource blocks PRB 12 and 17. A downlink shared data channel arranged in the slot is received.

  In this way, the maximum distance between the physical resource blocks PRB to be used (PRB3 to PRB17 in the above example) can be increased, and the arrangement of the physical resource blocks PRB (PRB3, PRB8, PRB12, PRB17 in the above example) Can be sparse. From the above, by using the present invention, it is possible to perform distributed transmission using physical resource blocks PRB that are sparsely arranged, and to improve the frequency diversity effect. Note that, as the total number of physical resource blocks PRB increases compared to the case where the total number of physical resource blocks PRB is small, distributed transmission can be performed using sparsely arranged physical resource blocks PRB, and the frequency diversity effect can be improved.

  In the present embodiment, the total number N_DVRB of the distributed virtual resource blocks DVRB has been described as being the maximum number that is less than or equal to the total number of physical resource blocks PRB and is divisible by the multiplex number Nd. It may be a small value divisible by the multiplexing number Nd). For example, the case where the total number N_PRB of physical resource blocks PRB is “18” and the number of multiplexing Nd is “2” will be described as an example.

  In this example, the maximum number divisible by the multiplexing number Nd below the total number N_PRB of the physical resource blocks PRB is “18”. To indicate 18 distributed virtual resource blocks DVRB by radio resource allocation information, the start VRB number needs 5 bits (32 states). However, when the number of distributed virtual resource blocks DVRB is 16, the start VRB number can be indicated by 4 bits (16 states) and can be reduced by 1 bit. In this way, in consideration of the overhead of radio resource allocation information, the total number of distributed virtual resource blocks DVRB may be set to a different value that is not the maximum number divisible by the multiplexing number Nd below the total number of physical resource blocks PRB.

  Next, FIG. 58 to FIG. 62 show the rules for associating the distributed virtual resource block DVRB with the physical resource block PRB pair, which reduces the number of bits of the start VRB number by reducing the total number of distributed virtual resource blocks DVRB in this way. It is a figure explaining the 11th example. FIG. 58A is a diagram showing physical resource block PRB pairs of the system bandwidth in the eleventh association rule example. In FIG. 58 (a), the frequency is plotted on the horizontal axis, and each square represents a physical resource block PRB pair. The symbols PRB1 to PRB18 attached to these squares are the physical resource block PRB pairs of PRB numbers 1 to 18, respectively. Represents something.

  In the eleventh association rule example, a case will be described in which the multiplexing number Nd is “2”, the total number N_PRB of physical resource block PRB pairs of the system bandwidth is “18”, and the set M is “2”. For simplification of description, portions different from the first association rule example shown in FIGS. In the eleventh association rule example, as shown in FIG. 58 (b), the total number N_DVRB of the distributed virtual resource blocks DVRB is equal to or less than the total number N_PRB “18” of the physical resource blocks PRB, and the multiplexing number Nd “2”. The distributed virtual resource blocks DVRB1 to DVRB16 are associated with each other as “16”, which is a divisible number. Thereby, the start VRB number of radio | wireless resource allocation information can be comprised by 4 bits (16 states), and a control bit can fully be utilized without waste.

  FIG. 59 is a diagram showing the distributed virtual resource block DVRB unit in the eleventh association rule example. In the case of the eleventh association rule example, eight distributed virtual resource block DVRB units DU1 to DU8 are configured by the above-described second and third steps as shown in FIG. In each region X of the eight distributed virtual resource block DVRB units DU1 to DU8, distributed virtual resource blocks DVRB (reference numerals DVRB1, DVRB2, DVRB3) having VRB numbers 1, 2, 3, 4, 5, 6, 7, 8 , DVRB4, DVRB5, DVRB6, DVRB7, DVRB8). Further, in each area Y of the eight distributed virtual resource block DVRB units DU1 to DU8, distributed virtual resource blocks DVRB (reference numerals DVRB9 and DVRB10 having VRB numbers 9, 10, 11, 12, 13, 14, 15, and 16). , DVRB11, DVRB12, DVRB13, DVRB14, DVRB15, DVRB16).

  FIG. 60 is a diagram showing a distributed virtual resource block DVRB unit set in the eleventh association rule example. As shown in FIG. 60, from the eight distributed virtual resource block DVRB units, the distributed virtual resource block DVRB unit set composed of 2 (M) distributed virtual resource block DVRB units is obtained by the fourth step described above. Four (DUS1 to DUS4)) are generated. The distributed virtual resource block DVRB unit set DUS1 is composed of distributed virtual resource blocks DVRB units DU1 and DU2. Similarly, the distributed virtual resource block DVRB unit set DUS2 is distributed from the distributed virtual resource block DVRB units DU3 and DU4, and the distributed virtual resource block DVRB unit set DUS3 is distributed from the distributed virtual resource block DVRB units DU5 and DU6 to the distributed virtual resource. The block DVRB unit set DUS4 is composed of distributed virtual resource block DVRB units DU7 and DU8.

  FIG. 61 is a diagram showing the first and second distributed virtual resource block DVRB unit groups in the eleventh association rule example. As a result of the fifth step, the first distributed virtual resource block DVRB unit group has the distributed virtual resource block DVRB units of DU1, DU3, DU5, DU7, DU2, DU4, DU6, DU8 as shown in FIG. It will be in order. That is, the distributed virtual resource blocks DVRB allocated to the area X are arranged in the order of DVRB1, DVRB3, DVRB5, DVRB7, DVRB2, DVRB4, DVRB6, DVRB8, and the distributed virtual resource blocks DVRB allocated to the area Y are DVRB9, DVRB13, DVRB11. , DVRB15, DVRB10, DVRB12, DVRB14, DVRB16 are arranged in this order.

  In addition, the second distributed virtual resource block DVRB unit group is the distributed virtual resource block allocated to the area X of the first distributed virtual resource block DVRB unit group as shown in FIG. The DVRB is the area Y, and the distributed virtual resource block DVRB assigned to the area Y is the area X. That is, in the second distributed virtual resource block DVRB unit group, the distributed virtual resource block DVRB allocated to the region X is allocated to the region Y in the order of DVRB9, DVRB11, DVRB13, DVRB15, DVRB10, DVRB12, DVRB14, DVRB16. The distributed virtual resource blocks DVRB are arranged in the order of DVRB1, DVRB3, DVRB5, DVRB7, DVRB2, DVRB4, DVRB6, DVRB8.

  FIG. 62 is a diagram illustrating an eleventh example of the association rule between the distributed virtual resource block DVRB and the physical resource block PRB pair. In FIG. 62, the horizontal axis represents frequency, and each square represents the area of each slot in the physical resource block PRB pair. Each of the squares, that is, DVRB1, DVRB2,... DVRB16 assigned to each slot of each physical resource block PRB pair represents a distributed virtual resource block DVRB with VRB numbers 1 to 16 assigned to the corresponding area, and each frequency area. The symbols PRB1, PRB2,... PRB18 attached to indicate that the PRB number of the first physical resource block PRB of the physical resource block PRB pair in the corresponding region is 1, 2,.

  When the first distributed virtual resource block DVRB unit group and the second distributed virtual resource block DVRB unit group are associated with the physical resource block PRB by the seventh step, the physical resource block PRB pair at the end of the system bandwidth is used. The first distributed virtual resource block DVRB unit group is associated with PRB1 to PRB8, and the second distributed virtual resource block DVRB unit group is associated with the physical resource block PRB pair PRB11 to PRB18 at the other end of the system bandwidth. Then, a blank is associated with PRB9 and PRB10 which are physical resource block PRB pairs between them.

  That is, the physical resource block PRB pairs corresponding to the number obtained by subtracting the total number of distributed virtual resource blocks DVRB from the total number of physical resource blocks PRB are left blank, and the first distributed virtual resource block DVRB unit group and the second distributed virtual resource block DVRB are set. A physical resource block PRB pair between physical resource block groups associated with a unit group is blank. The first distributed virtual resource block DVRB and the second distributed virtual resource block DVRB are compared with the case where the total number of distributed virtual resource blocks DVRB is the maximum number that is less than the total number of physical resource blocks PRB and divisible by the multiplexing number Nd. A difference is that a plurality of physical resource blocks PRB between physical resource block groups associated with a unit group may be blank.

  When the multiplexing number Nd is “3”, a plurality of physical resource blocks PRB between physical resource block groups associated with the first distributed virtual resource block DVRB unit group and the second distributed virtual resource block DVRB unit group, and / or There is a possibility that a plurality of physical resource blocks PRB between physical resource block groups associated with the second distributed virtual resource block DVRB unit group and the third distributed virtual resource block DVRB unit group are blank.

  Note that the start VRB number and the number of consecutive VRBs may not be indicated as separate information fields (bit fields) as radio resource allocation information, but may be configured by combining the information using a tree-based method. FIG. 63 shows an example in which the information of the start VRB number and the number of continuous VRBs are combined and configured by the tree-based method. Here, a case of 18 distributed virtual resource blocks DVRB is shown. In FIG. 63, DVRB1 to DVRB18 indicate virtual resource blocks DVRB having VRB numbers 1 to 18, respectively, and 1 to 18 of the number of consecutive VRBs 1 assigned thereto are only virtual resource blocks DVRB having the corresponding VRB numbers. Represents assigning.

  Further, 19 to 35 of the continuous VRB number 2 attached to a line connecting two adjacent ones of the above-described continuous VRB number 1 to 18 are VRB numbers 1, 2, 2, 3, 3, respectively. 4,..., 17 and 18 represent allocation of distributed virtual resource blocks. Further, 36 to 51 of the continuous VRB number 3 attached to the line connecting the two adjacent 19 to 35 of the continuous VRB number 2 are VRB numbers 1, 2, 3, 2 and 3, respectively. 4, 3, 4 and 5,... 16 and 17 and 18 are allocated.

  In this way, possible combinations are numbered when the number of consecutive VRBs is 1, 2, and 3. Here, there are 35 combinations when the number of continuously allocated VRBs is 2, and there are 51 combinations when the number of continuously allocated VRBs is 3, and in this case, both use 6 bits (64 states). Each combination.

  As shown in FIGS. 12, 17, 22, 27, 32, 37, 42, 47, 52, 57, and 62, the distributed virtual resource block DVRB and the physical resource block PRB pair The association rule belongs to the distributed virtual resource block DVRB unit set in the distributed virtual resource block DVRB unit set in which a plurality of distributed virtual resource blocks DVRB units in which the order of the distributed virtual resource block DVRB to which they belong is continuous are combined. The physical resource block PRB pairs associated with the distributed virtual resource block DVRB unit are not adjacent to each other in the frequency direction.

This is because when the distributed virtual resource block DVRB unit group is generated in the fifth step described above, the distributed virtual resource block DVRB unit set has the earliest order in the order of the distributed virtual resource block DVRB unit set. That is, one distributed virtual resource block DVRB unit to which the distributed virtual resource block DVRB with the smallest VRB number belongs is extracted, and until all virtual resource blocks DVRB units are extracted, the virtual resources are extracted in the order of extraction. This is because a group with an order in which block DVRB units are arranged is a distributed virtual resource block DVRB unit group.
Therefore, even if a plurality of distributed virtual resource blocks DVRB continuous in the distributed virtual resource block DVRB unit set are allocated to one mobile station apparatus 2, the physical resource block PRB pair in which the signal of the distributed virtual resource block DVRB is arranged is Since no deviation occurs in the region where these signals are not arranged adjacent to each other in the frequency direction, an excellent frequency diversity effect can be obtained.

In the above-described embodiment, the method for generating the association rule by the first to seventh steps has been described. However, the base station apparatus 1 and the mobile station apparatus 2 correspond to the first to seventh steps. The attached rule may be generated as necessary, or a storage unit for storing the generated rule may be provided and read out from the storage unit as necessary.
In the above-described embodiment, the base station device 1 and the mobile station device 2 have been described as using the association rules selected or generated based on the system bandwidth. However, the same association rules are always used for switching. It may not be possible.

  Also, the radio resource control unit 10 and the control unit 11 in FIG. 4, and the downlink shared data channel processing unit 210, the downlink control channel processing unit 220, the reference signal generation unit 230, the control format indicator signal generation unit 240 in FIG. Multiplexer 250, IFFT unit 261, GI insertion unit 262, control unit 20 in FIG. 6, and GI removal unit 403, FFT unit 404, demultiplexing unit 405, propagation path estimation unit 406, propagation path compensation unit 407 in FIG. , Control format indicator detection unit 408, propagation path compensation unit 409, QPSK demodulation unit 410, Viterbi decoder unit 411, propagation path compensation unit 412, data demodulation unit 413, and turbo decoding unit 414 Record this on a possible recording medium To read a program recorded in the body to the computer system may perform the processing of each unit by executing. Here, the “computer system” includes an OS and hardware such as peripheral devices.

  The “computer-readable recording medium” refers to a storage device such as a flexible medium, a magneto-optical disk, a portable medium such as a ROM and a CD-ROM, and a hard disk incorporated in a computer system. Furthermore, the “computer-readable recording medium” dynamically holds a program for a short time like a communication line when transmitting a program via a network such as the Internet or a communication line such as a telephone line. In this case, a volatile memory in a computer system serving as a server or a client in that case, and a program that holds a program for a certain period of time are also included. The program may be a program for realizing a part of the functions described above, and may be a program capable of realizing the functions described above in combination with a program already recorded in a computer system.

  The embodiment of the present invention has been described in detail with reference to the drawings. However, the specific configuration is not limited to this embodiment, and includes design changes and the like within a scope not departing from the gist of the present invention.

  The wireless communication system of the present invention is suitable for use in a mobile communication system such as a mobile phone, but is not limited thereto.

It is a figure which shows the outline about the structure of the channel in the radio | wireless communications system by one Embodiment of this invention. It is a figure which shows schematic structure of the downlink frame in the embodiment. It is a figure explaining arrangement | positioning of the downlink pilot channel in the physical resource block PRB pair in the downlink in the embodiment. It is a schematic block diagram which shows the structure of the base station apparatus 1 in the embodiment. It is a schematic block diagram which shows the internal structure of the transmission process part 12 of the base station apparatus 1 in the embodiment. It is a schematic block diagram which shows the structure of the mobile station apparatus 2 in the embodiment. It is a schematic block diagram which shows the internal structure of the reception process part 21 of the mobile station apparatus 2 in the embodiment. It is a figure which shows the physical resource block PRB pair and distributed virtual resource block DVRB of the system bandwidth in the 1st matching rule example in the embodiment. It is a figure which shows the distributed virtual resource block DVRB unit in the 1st example of a matching rule in the embodiment. It is a figure which shows the distributed virtual resource block DVRB unit set in the 1st example of a matching rule in the embodiment. It is a figure which shows the 1st and 2nd distributed virtual resource block DVRB unit group in the 1st matching rule example in the embodiment. It is a figure which shows the 1st example of the matching rule of the distributed virtual resource block DVRB and physical resource block PRB pair in the same embodiment. It is a figure which shows the physical resource block PRB pair and distributed virtual resource block DVRB of the system bandwidth in the 2nd matching rule example in the embodiment. It is a figure which shows the distributed virtual resource block DVRB unit in the 2nd matching rule example in the embodiment. It is a figure which shows the distributed virtual resource block DVRB unit set in the 2nd matching rule example in the embodiment. It is a figure which shows the 1st and 2nd distributed virtual resource block DVRB unit group in the 2nd matching rule example in the embodiment. It is a figure which shows the 2nd example of the matching rule of the distributed virtual resource block DVRB and physical resource block PRB pair in the same embodiment. It is a figure which shows the physical resource block PRB pair and distributed virtual resource block DVRB of the system bandwidth in the 3rd example of a matching rule in the same embodiment. It is a figure which shows the distributed virtual resource block DVRB unit in the 3rd example of an association rule in the embodiment. It is a figure which shows the distributed virtual resource block DVB unit set in the 3rd matching rule example in the embodiment. It is a figure which shows the 1st and 2nd distributed virtual resource block DVRB unit group in the 3rd example of a matching rule in the embodiment. It is a figure which shows the 3rd example of the matching rule of the distributed virtual resource block DVRB and physical resource block PRB pair in the same embodiment. It is a figure which shows the physical resource block PRB pair and distributed virtual resource block DVRB of the system bandwidth in the 4th example of a matching rule in the embodiment. It is a figure which shows the distributed virtual resource block DVRB unit in the 4th example of an association rule in the embodiment. It is a figure which shows the distributed virtual resource block DVB unit set in the 4th example of an association rule in the embodiment. It is a figure which shows the 1st and 2nd distributed virtual resource block DVRB unit group in the 4th example of a matching rule in the embodiment. It is a figure which shows the 4th example of the matching rule of the distributed virtual resource block DVRB and physical resource block PRB pair in the embodiment. It is a figure which shows the physical resource block PRB pair and distributed virtual resource block DVRB of the system bandwidth in the 5th example of a matching rule in the embodiment. It is a figure which shows the distributed virtual resource block DVRB unit in the 5th example of an association rule in the embodiment. It is a figure which shows the distributed virtual resource block DVB unit set in the 5th matching rule example in the embodiment. It is a figure which shows the 1st and 2nd distributed virtual resource block DVRB unit group in the 5th matching rule example in the embodiment. It is a figure which shows the 5th example of the matching rule with B pair. It is a figure which shows the physical resource block PRB pair and distributed virtual resource block DVRB of the system bandwidth in the 6th example of an association rule in the embodiment. It is a figure which shows the distributed virtual resource block DVRB unit in the 6th example of an association rule in the embodiment. It is a figure which shows the distributed virtual resource block DVB unit set in the 6th example of an association rule in the embodiment. It is a figure which shows the 1st and 2nd distributed virtual resource block DVRB unit group in the 6th example of an association rule in the embodiment. It is a figure which shows the 6th example of the matching rule of the distributed virtual resource block DVRB and physical resource block PRB pair in the same embodiment. It is a figure which shows the physical resource block PRB pair and distributed virtual resource block DVRB of the system bandwidth in the 7th example of an association rule in the embodiment. It is a figure which shows the distributed virtual resource block DVRB unit in the 7th matching rule example in the embodiment. It is a figure which shows the distributed virtual resource block DVB unit set in the 7th example of an association rule in the embodiment. It is a figure which shows the 1st and 2nd distributed virtual resource block DVRB unit group in the 7th matching rule example in the embodiment. It is a figure which shows the 7th example of the matching rule of the distributed virtual resource block DVRB and physical resource block PRB pair in the same embodiment. It is a figure which shows the physical resource block PRB pair and distributed virtual resource block DVRB of the system bandwidth in the 8th example of an association rule in the embodiment. It is a figure which shows the distributed virtual resource block DVRB unit in the 8th matching rule example in the embodiment. It is a figure which shows the distributed virtual resource block DVB unit set in the 8th matching rule example in the embodiment. It is a figure which shows the 1st and 2nd distributed virtual resource block DVRB unit group in the 8th matching rule example in the embodiment. It is a figure which shows the 8th example of the matching rule of the distributed virtual resource block DVRB and physical resource block PRB pair in the same embodiment. It is a figure which shows the physical resource block PRB pair and distributed virtual resource block DVRB of the system bandwidth in the 9th example of an association rule in the embodiment. It is a figure which shows the distributed virtual resource block DVRB unit in the 9th example of an association rule in the embodiment. It is a figure which shows the distributed virtual resource block DVB unit set in the 9th matching rule example in the embodiment. It is a figure which shows the 1st and 2nd distributed virtual resource block DVRB unit group in the 9th example of an association rule in the embodiment. It is a figure which shows the 9th example of the matching rule of the distributed virtual resource block DVRB and physical resource block PRB pair in the same embodiment. It is a figure which shows the physical resource block PRB pair and distributed virtual resource block DVRB of the system bandwidth in the 10th matching rule example in the same embodiment. It is a figure which shows the distributed virtual resource block DVRB unit in the 10th matching rule example in the embodiment. It is a figure which shows the distributed virtual resource block DVB unit set in the 10th matching rule example in the embodiment. It is a figure which shows the 1st and 2nd distributed virtual resource block DVRB unit group in the 10th matching rule example in the embodiment. It is a figure which shows the 10th example of the matching rule of the distributed virtual resource block DVRB and physical resource block PRB pair in the same embodiment. It is a figure which shows the physical resource block PRB pair and distributed virtual resource block DVRB of the system bandwidth in the 11th example of an association rule in the same embodiment. It is a figure which shows the distributed virtual resource block DVRB unit in the 11th matching rule example in the embodiment. It is a figure which shows the distributed virtual resource block DVB unit set in the 11th matching rule example in the embodiment. It is a figure which shows the 1st and 2nd distributed virtual resource block DVRB unit group in the 11th matching rule example in the embodiment. It is a figure which shows the 11th example of the matching rule of the distributed virtual resource block DVRB and physical resource block PRB pair in the same embodiment. An example in which the information of the start VRB number and the number of consecutive VRBs in the embodiment is combined by the tree-based method is shown. It is a figure which shows the outline about the structure of the channel in EUTRA. It is a figure which shows schematic structure of the downlink frame in EUTRA. It is a figure explaining arrangement | positioning of the downlink pilot channel in the physical resource block PRB pair in the downlink of EUTRA. It is a figure explaining the distributed virtual resource block DVRB mapping in case the conventional multiplexing number Nd is 2. FIG. It is a figure explaining the distributed virtual resource block DVRB mapping in case the conventional multiplexing number Nd is 3. FIG. The example of the distributed virtual resource block DVRB used with the conventional base station apparatus and mobile station apparatus is shown. The association rule of the distributed virtual resource block DVRB and the physical resource block PRB pair proposed in Non-Patent Document 6 when the multiplexing number Nd = 2 is shown. It is a figure which shows the example of the matching rule of the conventional distributed virtual resource block DVRB and the physical resource block PRB pair.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Base station apparatus 2 ... Mobile station apparatus 10 ... Radio | wireless resource control part 11 ... Control part 12 ... Transmission process part 13 ... Reception process part 14 ... Resource correspondence part 15 ... Allocation information generation part 20 ... Control part 21 ... Reception process Unit 22: transmission processing unit 210 ... downlink shared data channel processing unit 211 ... turbo coding unit 212 ... data modulation unit 220 ... downlink control channel processing unit 221 ... convolution coding unit 222 ... QPSK modulation unit 230 ... reference signal generation unit 240 ... control format indicator signal generation section 250 ... multiplexing section 260 ... transmission antenna processing section 261 ... IFFT section 262 ... GI insertion section 263 ... D / A section 264 ... transmission RF section 401 ... reception RF section 402 ... A / D section 403 GI removal unit 404 FFT unit 405 Demultiplexing unit 406 Propagation path estimation unit 407 Propagation path Compensation unit 408 ... control format indicator detection unit 409 ... propagation path compensation unit 410 ... QPSK demodulation unit 411 ... Viterbi decoder unit 412 ... propagation path compensation unit 413 ... data demodulation unit 414 ... turbo decoding unit

Claims (15)

A plurality of mobile station devices;
The amount of data that can be transmitted in a physical resource allocation unit, which is an area where radio resources are divided by a predetermined width in the frequency direction and the time direction, and is an area that is an allocation unit of data to be transmitted to the mobile station apparatus By arranging each signal group obtained by dividing a virtual resource block composed of data signals addressed to the mobile station device into a predetermined multiplexing number in the physical resource allocation unit of the multiplexing number distributed in the frequency direction, In a radio communication system comprising: a base station apparatus that performs distributed transmission that transmits a signal obtained by multiplexing the multiplex number of signal groups divided from different virtual resource blocks in a resource allocation unit;
The base station device
The multiplex number of the signal groups, and a correspondence rule comprising a combination of the physical resource allocation units in which the signal groups divided from the same virtual resource block are arranged, and an order of the virtual resource blocks The virtual resource block belonging to the virtual resource block unit set in at least a part of the virtual resource block unit set among the virtual resource block unit sets in which the plurality of virtual resource blocks in which the order is continuous is collected. By determining the start position and the number of continuations in the rule in which the physical resource allocation units for arranging the signals are not adjacent to each other in the frequency direction, for each of the mobile station devices that are subject to distributed transmission Used for distributed transmission of virtual resource blocks addressed to the mobile station device And the resource association unit for determining a time region in the physical resource allocation units and said physical resource allocation units each,
An allocation information generating unit that generates radio resource allocation information including at least information indicating the start position of the order and the continuous number in the rule determined by the associating unit;
A multiplexer that multiplexes a signal of a virtual resource block addressed to the mobile station device and multiplexes a signal for transmitting the radio resource allocation information in accordance with the determination of the resource association unit;
The mobile station device
Based on the received radio resource allocation information and the rules, a control unit that detects an area where a signal of a virtual resource block addressed to the mobile station device is arranged from the received signal;
A radio communication system comprising: a demultiplexing unit that extracts a signal of a virtual resource block addressed to the mobile station device based on a detection result of the control unit.   According to the rule, in the virtual resource block unit set in which the combinations in which the order is continuous are collected every predetermined number of sets, the physical resource allocation units constituting the combinations belonging to the set are not adjacent to each other in the frequency direction. The wireless communication system according to claim 1, wherein the wireless communication system is a rule. The rules are
The physical resource allocation units within the communication bandwidth managed by the base station apparatus are numbered sequentially from the physical resource allocation unit at either end of the communication bandwidth in the frequency direction, and the numbering is performed. A first step of determining the total number of virtual resource blocks according to the total number of physical resource allocation units, and performing numbering indicating the order of each virtual resource block;
A second step in which a virtual resource block unit is an ordered set in which the virtual resource blocks whose numbers are separated by a value obtained by dividing the total number of the virtual resource blocks by the multiplexing number are the multiplexing number;
A third step of performing numbering in order from the virtual resource block unit having the smallest sum of the numbers of the virtual resource blocks constituting the virtual resource block unit;
A fourth step in which a set of virtual resource block units of a predetermined number of consecutive numbering numbers in the third step is set as a virtual resource block unit set;
A fifth step in which an ordered set of virtual resource block units extracted and arranged in a predetermined order from the virtual resource block unit set is a first virtual resource block unit group;
A virtual resource block unit group different from the first group is an ordered set of virtual resource block units in which the order of virtual resource blocks in all of the virtual resource block units constituting the first virtual resource block unit group is changed. A sixth step,
The virtual resource block unit groups are generated by a seventh step of associating the virtual resource block unit groups with physical resource allocation units continuous in the frequency direction of the number of virtual resource block units constituting each virtual resource block unit group so as not to overlap each other. The wireless communication system according to claim 1, wherein the wireless communication system is a rule composed of a combination of a virtual resource block and the physical resource allocation unit constituting the virtual resource block unit group, and an order of the virtual resource block. In the fifth step, the virtual resource block unit sets are numbered in order starting from the virtual resource block unit set having the smallest sum of the numbers of the virtual resource block units constituting each virtual resource block unit set. From the resource block unit set, one virtual resource block having the earliest order in the virtual resource block unit set is extracted, and all virtual resource block unit sets are repeated until all the virtual resource blocks are extracted. The wireless communication system according to claim 3, wherein the virtual resource block unit group in which the virtual resource blocks are arranged in the extraction order is a first virtual resource block unit group. The order of the virtual resource blocks in the virtual resource block unit is associated with a predetermined time region,
The multiplexing unit time-multiplexes the virtual resource block signal in the physical resource allocation unit by arranging the virtual resource block signal in the associated time domain. The wireless communication system described.   The wireless communication system according to claim 3, wherein the predetermined number of sets is set according to a total number of physical resource allocation units that can be arranged in a frequency direction.   The wireless communication system according to claim 3, wherein the predetermined number of sets is set according to the number of multiplexing.   The wireless communication system according to claim 3, wherein the predetermined number of sets is set according to the number of transmission antennas.   The radio communication system according to claim 3, wherein the base station apparatus includes information representing the predetermined number of sets in a broadcast channel and transmits the information to the mobile station apparatus.   The wireless communication system according to claim 3, wherein the number of virtual resource block unit groups different from the first generated in the seventh step is a number corresponding to the multiplexing number.   4. The wireless communication system according to claim 3, wherein the total number of virtual resource blocks is equal to or less than the total number of physical resource allocation units that can be arranged in a frequency direction and is divisible by the multiplexing number. The number of virtual resource block unit groups different from the first generated in the sixth step is a number obtained by subtracting 1 from the multiplexing number,
In the seventh step, when associating the virtual resource block unit group with the physical resource allocation unit, the physical resource allocation unit between the physical resource allocation unit groups associated with the virtual resource block unit group. The total number of physical resource allocation units that are not associated with the virtual resource block is equal to the total number of physical resource allocation units in the communication bandwidth minus the total number of virtual resource blocks. The wireless communication system according to claim 11, wherein the virtual resource block unit group is a step of associating with the physical resource allocation unit. The amount of data that can be transmitted in a physical resource allocation unit, which is an area where radio resources are divided by a predetermined width in the frequency direction and the time direction, and is an area that is an allocation unit of data to be transmitted to the mobile station apparatus By arranging each signal group obtained by dividing a virtual resource block made up of data signals addressed to a mobile station device into a predetermined multiplex number in the physical resource allocation unit of the multiplex number distributed in the frequency direction, each physical resource In a base station apparatus that performs distributed transmission that transmits a signal obtained by multiplexing the multiplex number of signal groups divided from the different virtual resource blocks in an allocation unit,
The multiplex number of the signal groups, and a correspondence rule comprising a combination of the physical resource allocation units in which the signal groups divided from the same virtual resource block are arranged, and an order of the virtual resource blocks The virtual resource block belonging to the virtual resource block unit set in at least a part of the virtual resource block unit set out of the virtual resource block unit set in which the plurality of virtual resource blocks in which the order is continuous is collected. Determining the start position and the number of continuations in the rule in which the physical resource allocation units for arranging the signals are not adjacent to each other in the frequency direction for each of the mobile station apparatuses that are the targets of distributed transmission. Used for distributed transmission of virtual resource blocks addressed to the mobile station device And the resource association unit for determining a time region in the physical resource allocation units and said physical resource allocation units each,
An allocation information generating unit that generates radio resource allocation information including at least information indicating the start position of the order and the continuous number in the rule determined by the associating unit;
A base station comprising: a multiplexing unit that multiplexes a signal of a virtual resource block addressed to the mobile station apparatus and a signal that transmits the radio resource allocation information according to the determination of the resource association unit; apparatus. Movement of the amount of data that can be transmitted in a physical resource allocation unit, which is an area in which radio resources are divided by a predetermined width in the frequency direction and the time direction, and which is an allocation unit of data to be transmitted to the mobile station apparatus By arranging each signal group obtained by dividing a virtual resource block made up of a data signal addressed to a station apparatus into a predetermined multiplexing number in the physical resource allocation unit of the multiplexing number distributed in the frequency direction, each physical resource allocation In a mobile station apparatus that receives a distributedly transmitted signal that transmits a signal obtained by multiplexing the multiplex number of signal groups divided from different virtual resource blocks in units,
The multiplex number of the signal groups, and a correspondence rule comprising a combination of the physical resource allocation units in which the signal groups divided from the same virtual resource block are arranged, and an order of the virtual resource blocks The virtual resource block belonging to the virtual resource block unit set in at least a part of the virtual resource block unit set out of the virtual resource block unit set in which the plurality of virtual resource blocks in which the order is continuous is collected. A rule in which the physical resource allocation units for arranging the signals are not adjacent to each other in the frequency direction, and the received radio resource allocation information, the radio resource allocation information indicating the start position and the number of continuations in the rule, Based on the received signal to the mobile station device And a control unit which signals the virtual resource blocks is detected the placement area,
A mobile station apparatus comprising: a demultiplexing unit that extracts a signal of a virtual resource block addressed to the mobile station apparatus based on a detection result of the control unit. A plurality of mobile station devices;
The amount of data that can be transmitted in a physical resource allocation unit, which is an area where radio resources are divided by a predetermined width in the frequency direction and the time direction, and is an area that is an allocation unit of data to be transmitted to the mobile station apparatus By arranging each signal group obtained by dividing a virtual resource block composed of data signals addressed to the mobile station device into a predetermined multiplexing number in the physical resource allocation unit of the multiplexing number distributed in the frequency direction, In a radio communication method in a radio communication system, comprising: a base station apparatus that performs distributed transmission that transmits a signal obtained by multiplexing the multiplex number of signal groups divided from different virtual resource blocks in a resource allocation unit;
The base station apparatus includes the combination of the physical resource allocation units in which the signal groups divided from the same virtual resource block are arranged in the multiplexed number of the signal groups, and the order of the virtual resource blocks. A virtual resource block unit set in at least a part of the virtual resource block unit set among a plurality of virtual resource block sets in which the plurality of virtual resource blocks in the order are combined. The mobile station apparatus that is subject to distributed transmission based on the start position in the order and the number of continuations in a rule in which the physical resource allocation units that arrange the signals of the virtual resource blocks belonging to are not adjacent to each other in the frequency direction By deciding for each, the virtual resource block addressed to the mobile station apparatus is separated. A first step of determining the physical resource allocation unit and the time domain in the physical resource allocation units each used for transmitting,
A second process in which the base station apparatus generates radio resource allocation information including at least information indicating the start position of the order in the rule determined in the first process and the continuous number;
The base station device multiplexes the virtual resource block signal addressed to the mobile station device, multiplexes the signal for transmitting the radio resource allocation information, and transmits the multiplexed signal according to the determination in the first process. A third process to
A fourth process in which the mobile station apparatus detects, from the received signal, a region in which a signal of a virtual resource block addressed to the mobile station apparatus is arranged based on the received radio resource allocation information and the rule;
The wireless communication method comprising: a fifth process in which the mobile station apparatus extracts a signal of a virtual resource block addressed to the mobile station apparatus based on a detection result in the fourth process.

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