WO2017195626A1 - Terminal device, base station device, communication method, and integrated circuit - Google Patents

Abstract

A terminal device receives information indicating one interlace assigned for PUSCH transmission, and performs the PUSCH transmission. The one interlace comprises G PRBs, each of G sub-bands included in an uplink cell bandwidth comprises H consecutive PRBs not overlapping in a frequency domain, the H consecutive PRBs corresponds to different interlaces, respectively, and an interlace to which an n-th PRB in an m-th sub-band corresponds differs from an interlace to which an n-th PRB in an m+1-th sub-band corresponds.

Description

TERMINAL DEVICE, BASE STATION DEVICE, COMMUNICATION METHOD, AND INTEGRATED CIRCUIT

The present invention relates to a terminal device, a base station device, a communication method, and an integrated circuit.
This application claims priority on Japanese Patent Application No. 2016-096131 filed in Japan on May 12, 2016, the contents of which are incorporated herein by reference.

The wireless access method and wireless network for cellular mobile communications (hereinafter referred to as “Long Term Evolution” (LTE: “Registered Trademark”) or “Evolved” Universal “Terrestrial” Radio Access ”:“ EUTRA ”) is the third generation partnership project (3rd Generation Generation). Partnership Project: 3GPP) In LTE, a base station apparatus is also called eNodeB (evolvedvolveNodeB), and a terminal device is also called UE (UserＵＥEquipment). LTE is a cellular communication system in which a plurality of areas covered by a base station apparatus are arranged in a cell shape. A single base station apparatus may manage a plurality of cells.

In LTE Release 13, carrier aggregation, which is a technology in which a terminal device simultaneously transmits and / or receives in a plurality of serving cells (component carriers), is specified ( Non-Patent Documents 1, 2, and 3). In LTE Release 14, the extension of license-assisted access (LAA: Licensed Assisted Access) and carrier aggregation using uplink carriers in an unlicensed バ ン ド band are being studied (Non-Patent Document 4). In Non-Patent Document 6, transmission of PRACH (Physical Random Access Channel) using an uplink carrier in an unlicensed band is studied. Non-Patent Document 5 describes that RB level multi-cluster transmission is supported for PUSCH. The introduction of RB level multi-cluster transmission is being studied in order to satisfy OCB regulations (Occupied Channel Bandwidth regulation). However, the problem is that high IMD (intermodulation distortion) power is generated due to the equidistant RB spacing.

One embodiment of the present invention is a terminal device capable of efficiently performing uplink transmission, a communication method used in the terminal device, an integrated circuit mounted in the terminal device, and efficiently receiving uplink transmission A base station apparatus that can be used, a communication method used for the base station apparatus, and an integrated circuit implemented in the base station apparatus are provided.

(1) In the aspect of the present invention, the following measures were taken. That is, the first aspect of the present invention is a terminal apparatus, a receiving unit that receives information indicating one interlace allocated for PUSCH transmission, and a transmitting unit that transmits the PUSCH; The one interlace is composed of G PRBs, and each of the G subbands included in the uplink cell bandwidth is composed of consecutive H PRBs that do not overlap in the frequency domain, Each of consecutive H PRBs corresponds to a different interlace, and the interlace corresponding to the nth PRB in the mth subband is the same as the interlace corresponding to the nth PRB in the (m + 1) th subband. Is different.

(2) A second aspect of the present invention is a base station apparatus, which transmits information indicating one interlace assigned for PUSCH transmission, and receives the PUSCH transmission. And the one interlace is composed of G PRBs, and each of the G subbands included in the uplink cell bandwidth is composed of consecutive H PRBs that do not overlap in the frequency domain. Each of the consecutive H PRBs corresponds to a different interlace, and the interlace corresponding to the nth PRB in the mth subband corresponds to the nth PRB in the m + 1st subband. Different from interlaced.

(3) A third aspect of the present invention is a communication method used for a terminal apparatus, which is a communication method used for a terminal apparatus, and indicates information indicating one interlace allocated for PUSCH transmission. Receiving, transmitting the PUSCH, and the one interlace is composed of G PRBs, and each of the G subbands included in the uplink cell bandwidth is not consecutive in the frequency domain. Each of the consecutive H PRBs corresponds to a different interlace, and the interlace corresponding to the nth PRB in the mth subband is the nth in the m + 1st subband. It is different from the interlace corresponding to PRB.

(4) A fourth aspect of the present invention is a communication method used for a base station apparatus, which is a communication method used for a base station apparatus, and shows one interlace allocated for PUSCH transmission. Transmits information, receives the PUSCH transmission, and the one interlace is composed of G PRBs, and each of the G subbands included in the uplink cell bandwidth does not overlap in the frequency domain Each of the H consecutive PRBs corresponds to a different interlace, and the interlace corresponding to the nth PRB in the mth subband is the m + 1th subband. Is different from the interlace corresponding to the nth PRB in FIG.

(5) A fifth aspect of the present invention is an integrated circuit mounted on a terminal device, and is an integrated circuit mounted on the terminal device, and shows one interlace allocated for PUSCH transmission. A receiving circuit for receiving information, and a transmitting circuit for transmitting the PUSCH, wherein the one interlace is composed of G PRBs and includes G subbands included in the uplink cell bandwidth. Each is composed of consecutive H PRBs that do not overlap in the frequency domain, and each of the consecutive H PRBs corresponds to a different interlace, and the nth PRB in the mth subband corresponds. The race is different from the interlace corresponding to the nth PRB in the (m + 1) th subband.

(6) A sixth aspect of the present invention is an integrated circuit implemented in a base station apparatus, and is an integrated circuit implemented in the base station apparatus, and is one interlace allocated for PUSCH transmission. And a receiving circuit that receives the PUSCH transmission, and the one interlace is composed of G PRBs and is included in the uplink cell bandwidth. Each of the subbands of H is composed of consecutive H PRBs that do not overlap in the frequency domain, and each of the consecutive H PRBs corresponds to a different interlace, and the nth PRB in the mth subband. Is different from the interlace corresponding to the nth PRB in the (m + 1) th subband.

According to one aspect of the present invention, the terminal device can efficiently perform uplink transmission. Also, the base station apparatus can efficiently receive uplink transmission.

It is a conceptual diagram of the radio | wireless communications system of this embodiment. It is a figure which shows schematic structure of the radio | wireless frame of this embodiment. It is a figure which shows schematic structure of the uplink slot in this embodiment. It is a figure which shows an example of the interlace in this embodiment. It is a figure which shows an example of the method of mapping VRB in this embodiment to PRB. It is a figure which shows an example of the map pattern in this embodiment. It is the figure which showed an example of the 1st mapping method from VRB to PRB in this embodiment. It is the figure which showed an example of the 2nd mapping method from VRB to PRB in this embodiment. It is a schematic block diagram which shows the structure of the terminal device 1 of this embodiment. It is a schematic block diagram which shows the structure of the base station apparatus 3 of this embodiment.

Hereinafter, embodiments of the present invention will be described.

FIG. 1 is a conceptual diagram of the wireless communication system of the present embodiment. In FIG. 1, the radio communication system includes terminal apparatuses 1A to 1C and a base station apparatus 3. Hereinafter, the terminal devices 1A to 1C are referred to as the terminal device 1.

Hereafter, carrier aggregation will be described.

In the present embodiment, the terminal device 1 is set with a plurality of serving cells. A technique in which the terminal device 1 communicates via a plurality of serving cells is referred to as cell aggregation or carrier aggregation. One aspect of the present invention may be applied to each of a plurality of serving cells set for the terminal device 1. In addition, an aspect of the present invention may be applied to some of the set serving cells. Further, one aspect of the present invention may be applied to each of a plurality of set serving cell groups. In addition, an aspect of the present invention may be applied to a part of the set groups of a plurality of serving cells. The plurality of serving cells include at least one primary cell. The plurality of serving cells may include one or a plurality of secondary cells. The plurality of serving cells may include one or a plurality of LAA (Licensed Assisted Access) cells. The LAA cell is also referred to as an LAA secondary cell.

The primary cell is a serving cell that has undergone an initial connection establishment (initial connection establishment) procedure, a serving cell that has initiated a connection 再 re-establishment procedure, or a cell that has been designated as a primary cell in a handover procedure. A secondary cell and / or an LAA cell may be set when or after an RRC (Radio Resource Control) connection is established. The primary cell may be included in a licensed band. The LAA cell may be included in an unlicensed band. The secondary cell may be included in either a license band or an unlicensed band.

In the downlink, a carrier corresponding to a serving cell is referred to as a downlink component carrier. In the uplink, a carrier corresponding to a serving cell is referred to as an uplink component carrier. The downlink component carrier and the uplink component carrier are collectively referred to as a component carrier.

The terminal device 1 can perform transmission and / or reception on a plurality of physical channels simultaneously in a plurality of serving cells (component carriers). One physical channel is transmitted in one serving cell (component carrier) among a plurality of serving cells (component carriers).

The physical channel and physical signal of this embodiment will be described.

In FIG. 1, the following uplink physical channels are used in uplink wireless communication from the terminal device 1 to the base station device 3. The uplink physical channel is used for transmitting information output from an upper layer.
・ PUSCH (Physical Uplink Shared Channel)
The PUSCH is used to transmit uplink data (Transport block, Uplink-Shared Channel: UL-SCH).

In FIG. 1, the following uplink physical signals are used in uplink wireless communication. Uplink physical signals are not used to transmit information output from higher layers, but are used by the physical layer.
DMRS (Demodulation Reference Signal)
DMRS is related to transmission of PUSCH. DMRS is time-multiplexed with PUSCH. The base station apparatus 3 may use DMRS to perform PUSCH propagation path correction.

In FIG. 1, the following downlink physical channels are used in downlink radio communication from the base station apparatus 3 to the terminal apparatus 1. The downlink physical channel is used for transmitting information output from an upper layer.
・ PDCCH (Physical Downlink Control Channel)
The PDCCH is used to transmit downlink control information (Downlink Control Information: DCI). The downlink control information is also referred to as a DCI format. The downlink control information includes an uplink grant. The uplink grant is used for scheduling a single PUSCH within a single cell. The uplink grant may be used for scheduling a single PUSCH in a subframe that is four or more times after the subframe in which the uplink grant is transmitted.

UL-SCH is a transport channel. A channel used in a medium access control (Medium Access Control: MAC) layer is referred to as a transport channel. A transport channel unit used in the MAC layer is also referred to as a transport block (transport block: TB) or a MAC PDU (Protocol Data Unit).

Hereinafter, the configuration of a radio frame according to the present embodiment will be described.

FIG. 2 is a diagram illustrating a schematic configuration of a radio frame according to the present embodiment. In FIG. 2, the horizontal axis is a time axis. Each radio frame is 10 ms long. Each radio frame is composed of 10 subframes. Each subframe is 1 ms long and is defined by two consecutive slots. Each of the slots is 0.5 ms long. The i-th subframe in the radio frame is composed of a (2 × i) th slot and a (2 × i + 1) th slot. That is, 10 subframes can be used in each 10 ms interval.

Hereinafter, an example of the configuration of the slot according to the present embodiment will be described. FIG. 3 is a diagram illustrating a schematic configuration of the uplink slot in the present embodiment. FIG. 3 shows the configuration of an uplink slot in one cell. In FIG. 3, the horizontal axis is a time axis, and the vertical axis is a frequency axis. In FIG. 3, l is an SC-FDMA symbol number / index, and k is a subcarrier number / index.

A physical signal or physical channel transmitted in each slot is represented by a resource grid. In the uplink, the resource grid is defined by a plurality of subcarriers and a plurality of SC-FDMA symbols. Each element in the resource grid is referred to as a resource element. A resource element is represented by a subcarrier number / index k and an SC-FDMA symbol number / index l.

The uplink slot includes a plurality of SC-FDMA symbols l (l = 0, 1,..., N ^UL _symb ) in the time domain. N ^UL _symb indicates the number of SC-FDMA symbols included in one uplink slot. N ^UL _symb is 7 for normal CP (normal cyclic prefix) in the ^uplink . N ^UL _symb is 6 for extended CP in the uplink.

The terminal device 1 receives the parameter UL-CyclicPrefixLength indicating the CP length in the uplink from the base station device 3. The base station apparatus 3 may broadcast the system information including the parameter UL-CyclicPrefixLength corresponding to the cell in the cell.

The uplink slot includes a plurality of subcarriers k (k = 0, 1,..., N ^UL _RB × N ^RB _sc ) in the frequency domain. N ^UL _RB is an uplink bandwidth setting for the serving cell, expressed as a multiple of N ^RB _sc . N ^RB _sc is a (physical) resource block size in the frequency domain expressed by the number of subcarriers. Subcarrier spacing Δf is 15 kHz, N ^RB _sc may be 12. That is, N ^RB _sc may be 180 kHz.

A resource block (RB) is used to represent a mapping of physical channels to resource elements. As the resource block, a virtual resource block (VRB) and a physical resource block (PRB) are defined. A physical channel is first mapped to a virtual resource block. Thereafter, the virtual resource block is mapped to the physical resource block. One physical resource block is defined by N ^UL _symb consecutive SC-FDMA symbols in the time domain and N ^RB _sc consecutive subcarriers in the frequency domain. Thus, one physical resource block is composed of resource elements of _{^{(N UL symb × N RB sc}} ). One physical resource block corresponds to one slot in the time domain. In the frequency domain, physical resource blocks are numbered n _PRB (0, 1,..., N ^UL _RB −1) in order from the lowest frequency.

The downlink slot in this embodiment includes a plurality of OFDM symbols. The configuration of the downlink slot in this embodiment is basically the same except that the resource grid is defined by a plurality of subcarriers and a plurality of OFDM symbols, and thus description of the configuration of the downlink slot is omitted. To do.

Hereinafter, a PUSCH resource allocation method according to this embodiment will be described.

Interlace is a unit of PUSCH resource allocation. One interlace is composed of a plurality of RBs. A plurality of RBs corresponding to one interlace may be discontinuous. The uplink grant may indicate an interlace index h of an interlace allocated for PUSCH transmission. The uplink grant may indicate one or more interlace indexes. The one or more interlace indexes may be indicated by the start position and length of the interlace index. The one or more interlace indexes may be indicated by a bitmap.

FIG. 4 is a diagram illustrating an example of interlace in the present embodiment. In FIG. 4, the horizontal axis represents the VRB index n _VRB . V _{g, h} is the g-th VRB constituting the interlace of the interlace index h. In FIG. 4, the number G of RBs forming an interlace is 10, the uplink bandwidth setting N ^UL _RB for the serving cell is 50, and the number H of interlaces included in the uplink transmission bandwidth is 5 It is. In FIG. 4, VRBs corresponding to a certain interlace h are arranged at equal intervals. The VRB index of the g-th VRB corresponding to each of the plurality of interlaces is continuous. A group composed of g-th VRBs corresponding to each of a plurality of interlaces is also referred to as a subband. That is, the g-th subband is composed of VRB {V _g-1,0 , V _g-1,1 ,..., V _{g-1, H-1} }. Each VRB included in one subband corresponds to a different interlace. G is also called a subband index.

FIG. 5 is a diagram illustrating an example of a method for mapping VRBs to PRBs in the present embodiment. In FIG. 5, the horizontal axis represents a VRB index n _VRB and a PRB index n _PRB . V _{g, h} is the g-th VRB constituting the interlace of the interlace index h. P _{g, h} is the g-th PRB constituting the interlace of the interlace index h. In FIG. 5, the number G of RBs forming an interlace is 10, the uplink bandwidth setting N ^UL _RB for the serving cell is 50, and the number H of interlaces included in the uplink transmission bandwidth is 5 It is. In FIG. 5, the set of PRBs used for PUSCH transmission is given by equation (1). In Equation (1), n _VRB is the VRB index of the VRB corresponding to the interlace indicated by the uplink grant.

A map pattern from VRB to PRB is referred to as a map pattern. FIG. 6 is a diagram illustrating an example of a map pattern in the present embodiment. Different map patterns may be applied for each subband. For example, map pattern A may be applied to even-numbered subbands in FIG. 5, and map pattern B may be applied to odd-numbered subbands in FIG.

In the following, an example of a mapping method for providing a map pattern from VRB to PRB is shown.

The first mapping method from VRB to PRB is based on Equations 2 to 4 below.

Where g ^v is a subband index for VRB, h ^v is an interlace index for VRB, g ^p is a subband index for PRB, and h ^p is a subband index for PRB. Band index. M ₁ () is a pseudo random function. C _init is a value for initializing the pseudo-random function. First mapping method, first, a pseudo-random value that is different based on g ^v are given. Then, a method may be used in which one or a plurality of interlaces are allocated using a pseudo-random value given for each subband as a start of the allocated PRB.

FIG. 7 is a diagram illustrating an example of a first mapping method from VRB to PRB in the present embodiment. In FIG. 7, the solid line indicates the mapping of the VRB corresponding to interlace 0 to the PRB (start of assigned PRB), and the dotted line indicates the mapping of the VRB corresponding to other than interlace 0 to the PRB. Yes. The start of the assigned PRB may be pseudo-randomized with a pseudo-random function M ₁ (). As shown in FIG. 7, in the first mapping method, each interlace may be set cyclically with reference to the start of the assigned PRB.

The second mapping method from VRB to PRB is based on Equations 3, 4, and 5.

Here, _Lw is a value having a role of a rotor related to the start of the assigned PRB, and C is an arbitrary constant. Second mapping method is based on the g ^v, it can be said that the start of the PRB for each subband is how to move cyclically. For example, L _w is sufficiently large with respect to the sub-band size, or, in the case where L _w subband size is relatively prime, a large effect of the invention. Even when _Lw is not sufficiently large with respect to the subband size and _Lw and the subband size are not coprime, the effect of the invention is expected.

FIG. 8 is a diagram showing an example of the second mapping method from VRB to PRB in the present embodiment.

In the first and second mapping method, the method for determining the interlace h ^p is not limited to Equation 3. For example, in the first and second mapping method, interlace h ^p may be based on Equation 6 below.

Here, F ₁ () is an arbitrary function. For _{example, F} 1 () may be a pseudo-random function. F ₁ () may be a linear function given by F ₁ (x) = a ₁ x + b ₁ or other functions. Here, a ₁ and b ₁ are arbitrary values.

Equation 7 is a mathematical expression that shows an example of a pseudo-random function _M 1 () or _F 1 ().

Here, c () is a pseudo-random sequence, and may be, for example, an M sequence or a Gold sequence. Equation 7 is a function that outputs a pseudo-random value in the range of 0 to H-1. Note that the pseudo-random function according to the present embodiment may be a function that generates a pseudo-random value, and M ₁ () is not limited to Equation 7.

For example, c () may be given by Equation 8.

The pseudo-random sequence c () may be any method that generates a value based on a pseudo-random sequence or a mathematical formula or rule, and is not limited to the method using the mathematical formula 8.

In the present embodiment, pseudo-random may not necessarily satisfy the property that the output result is recognized to be random over a long period of time. In the present embodiment, pseudo-random is only required to satisfy the property that randomness is recognized in an output result in a relatively short period (for example, G period or H period). In other words, in the present embodiment, the pseudo-random functions M ₁ () and F ₁ () need only be recognized to be random for at most G or H consecutive values. Further, the pseudo-random sequence c () only needs to be random with respect to at most G or H consecutive sequences.

By applying the first or second mapping as a VRB to PRB mapping method, the interlace corresponding to the h-th PRB in the g-th subband is different from the interlace corresponding to the g + 1-th PRB. . Further, as a mapping method from VRB to PRB, by applying the first or second mapping, the PRB index of the h-th PRB among the H PRBs corresponding to one interlace, and the k + a-th The difference between the PRB indices of (a−1) N ^UL _PRB / H + 1 is changed to aN ^UL _PRB / H−1. Here, a is an arbitrary natural number, integer or real number.

Terminal 1 and the base station device _3, a _{c init, PCI (Physical layer Cell} Identity), the slot index n _s, the upper layer of the radio frame signal, C-RNTI, the DCI instructing the transmission of the PUSCH You may set based on CCE index, the information set beforehand, the value previously defined by the specification etc., the value peculiar to UE, the value peculiar to a cell, etc. The cell search is a procedure in which the terminal device 1 detects a cell PCI. In order to facilitate cell search (facilitate), a synchronization signal is transmitted in the downlink.

The first mapping method and the second mapping method may be applied to only a part of the assignable frequency band or only a part of the subbands. Further, for example, the first mapping method and the second mapping method may be applied to odd-numbered subbands or even-numbered subbands.

Hereinafter, the configuration of the apparatus according to the present embodiment will be described.

FIG. 9 is a schematic block diagram showing the configuration of the terminal device 1 of the present embodiment. As illustrated, the terminal device 1 includes a wireless transmission / reception unit 10 and an upper layer processing unit 14. The wireless transmission / reception unit 10 includes an antenna unit 11, an RF (Radio Frequency) unit 12, and a baseband unit 13. The upper layer processing unit 14 includes a medium access control layer processing unit 15, a radio resource control layer processing unit 16, and a transmission power control unit 17. The wireless transmission / reception unit 10 is also referred to as a transmission unit, a reception unit, or a physical layer processing unit.

The upper layer processing unit 14 outputs the uplink data (transport block) generated by the user operation or the like to the radio transmission / reception unit 10. The upper layer processing unit 14 includes a medium access control (MAC: Medium Access Control) layer, a packet data integration protocol (Packet Data Convergence Protocol: PDCP) layer, a radio link control (Radio Link Control: RLC) layer, a radio resource control (Radio). Resource (Control: RRC) layer processing.

The medium access control layer processing unit 15 included in the upper layer processing unit 14 performs processing of the medium access control layer. The medium access control layer processing unit 15 controls the random access procedure based on various setting information / parameters managed by the radio resource control layer processing unit 16.

The radio resource control layer processing unit 16 included in the upper layer processing unit 14 performs processing of the radio resource control layer. The radio resource control layer processing unit 16 manages various setting information / parameters of the own device. The radio resource control layer processing unit 16 sets various setting information / parameters based on the upper layer signal received from the base station apparatus 3. That is, the radio resource control layer processing unit 16 sets various setting information / parameters based on information indicating various setting information / parameters received from the base station apparatus 3.

The transmission power control unit 17 included in the higher layer processing unit 14 sets transmission power for PRACH (random access preamble) transmission.

The wireless transmission / reception unit 10 performs physical layer processing such as modulation, demodulation, encoding, and decoding. The radio transmission / reception unit 10 separates, demodulates, and decodes the signal received from the base station apparatus 3 and outputs the decoded information to the upper layer processing unit 14. The radio transmission / reception unit 10 generates a transmission signal by modulating and encoding data, and transmits the transmission signal to the base station apparatus 3.

The RF unit 12 converts the signal received via the antenna unit 11 into a baseband signal by orthogonal demodulation (down-conversion: down covert), and removes unnecessary frequency components. The RF unit 12 outputs the processed analog signal to the baseband unit.

The baseband unit 13 converts the analog signal input from the RF unit 12 into a digital signal. The baseband unit 13 removes a portion corresponding to CP (Cyclic Prefix) from the converted digital signal, performs fast Fourier transform (FFT) on the signal from which CP has been removed, and generates a frequency domain signal. Extract.

The baseband unit 13 performs inverse fast Fourier transform (Inverse Fastier Transform: IFFT) to generate an SC-FDMA symbol, adds a CP to the generated SC-FDMA symbol, and converts a baseband digital signal into Generating and converting a baseband digital signal to an analog signal. The baseband unit 13 outputs the converted analog signal to the RF unit 12.

The RF unit 12 removes an extra frequency component from the analog signal input from the baseband unit 13 using a low-pass filter, up-converts the analog signal to a carrier frequency, and transmits the signal via the antenna unit 11. To do. The RF unit 12 amplifies power. Further, the RF unit 12 may have a function of controlling transmission power. The RF unit 12 is also referred to as a transmission power control unit.

FIG. 10 is a schematic block diagram showing the configuration of the base station apparatus 3 of the present embodiment. As shown in the figure, the base station apparatus 3 includes a radio transmission / reception unit 30 and an upper layer processing unit 34. The wireless transmission / reception unit 30 includes an antenna unit 31, an RF unit 32, and a baseband unit 33. The upper layer processing unit 34 includes a medium access control layer processing unit 35 and a radio resource control layer processing unit 36. The wireless transmission / reception unit 30 is also referred to as a transmission unit, a reception unit, or a physical layer processing unit.

The upper layer processing unit 34 includes a medium access control (MAC: Medium Access Control) layer, a packet data integration protocol (Packet Data Convergence Protocol: PDCP) layer, a radio link control (Radio Link Control: RLC) layer, a radio resource control (Radio). Resource (Control: RRC) layer processing.

The medium access control layer processing unit 35 included in the upper layer processing unit 34 performs processing of the medium access control layer. The medium access control layer processing unit 35 controls the random access procedure based on various setting information / parameters managed by the radio resource control layer processing unit 36.

The radio resource control layer processing unit 36 included in the upper layer processing unit 34 performs processing of the radio resource control layer. The radio resource control layer processing unit 36 generates downlink data (transport block), system information, RRC message, MAC CE (Control Element), etc. arranged in the physical downlink shared channel, or acquires it from the upper node. , Output to the wireless transceiver 30. The radio resource control layer processing unit 36 manages various setting information / parameters of each terminal device 1. The radio resource control layer processing unit 36 may set various setting information / parameters for each terminal device 1 via an upper layer signal. That is, the radio resource control layer processing unit 36 transmits / notifies information indicating various setting information / parameters.

Since the function of the wireless transmission / reception unit 30 is the same as that of the wireless transmission / reception unit 10, description thereof is omitted.

Each of the units denoted by reference numerals 10 to 16 included in the terminal device 1 may be configured as a circuit. Each of the parts denoted by reference numerals 30 to 36 included in the base station device 3 may be configured as a circuit.

Hereinafter, various aspects of the terminal device 1 and the base station device 3 in the present embodiment will be described.

(1) A first aspect of the present embodiment is a terminal device 1, which is a receiving unit that receives information (uplink grant) indicating one interlace allocated for PUSCH transmission, and the PUSCH. And the one interlace is composed of G PRBs, and each of the G subbands included in the uplink cell bandwidth is a continuous H that does not overlap in the frequency domain. Each of the consecutive H PRBs corresponds to a different interlace, and the interlace corresponding to the nth PRB in the mth subband is the nth in the (m + 1) th subband. Is different from the corresponding interlace.

(2) A second aspect of the present embodiment is a base station apparatus 3, a transmission unit that transmits information (uplink grant) indicating one interlace allocated for PUSCH transmission, and A receiving unit for receiving PUSCH transmission, wherein the one interlace is composed of G PRBs, and each of the G subbands included in the uplink cell bandwidth does not overlap in the frequency domain Each of the H consecutive PRBs corresponds to a different interlace, and the interlace corresponding to the nth PRB in the mth subband is the m + 1th subband. Is different from the interlace corresponding to the nth PRB in FIG.

(3) In the first and second aspects of the present embodiment, the difference between the PRB index of the kth PRB and the PRB index of the k + ath PRB among the G PRBs corresponding to the one interlace Are (a-1) · H + 1 to a · H-1.

(4) In the first and third aspects of the present embodiment, the PRB index of the PRB corresponding to the one interlace is given based on a pseudo-random coefficient.

Thereby, the terminal device 1 can efficiently perform uplink transmission. In addition, the base station apparatus 3 can efficiently perform reception of uplink transmission.

The base station apparatus 3 related to one aspect of the present invention and the program operating in the terminal apparatus 1 control a CPU (Central Processing Unit) and the like so as to realize the functions of the above-described embodiments related to one aspect of the present invention. It may be a program (a program that causes a computer to function). Information handled by these devices is temporarily stored in RAM (Random Access Memory) during processing, and then stored in various ROMs such as Flash ROM (Read Only Memory) and HDD (Hard Disk Drive). Reading, correction, and writing are performed by the CPU as necessary.

In addition, you may make it implement | achieve the terminal device 1 in the embodiment mentioned above, and a part of base station apparatus 3 with a computer. In that case, the program for realizing the control function may be recorded on a computer-readable recording medium, and the program recorded on the recording medium may be read by the computer system and executed.

Note that the “computer system” here is a computer system built in the terminal device 1 or the base station device 3 and includes hardware such as an OS and 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 or a CD-ROM, and a hard disk incorporated in a computer system.

Furthermore, the “computer-readable recording medium” is a medium that dynamically holds a program for a short time, such as a communication line when transmitting a program via a network such as the Internet or a communication line such as a telephone line, In such a case, a volatile memory inside a computer system serving as a server or a client may be included and a program that holds a program for a certain period of time. 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.

Also, the base station device 3 in the above-described embodiment can be realized as an aggregate (device group) composed of a plurality of devices. Each of the devices constituting the device group may include a part or all of each function or each functional block of the base station device 3 according to the above-described embodiment. The device group only needs to have one function or each function block of the base station device 3. The terminal device 1 according to the above-described embodiment can also communicate with the base station device as an aggregate.

Further, the base station apparatus 3 in the above-described embodiment may be EUTRAN (Evolved Universal Terrestrial Radio Access Network). In addition, the base station device 3 in the above-described embodiment may have a part or all of the functions of the upper node for the eNodeB.

In addition, a part or all of the terminal device 1 and the base station device 3 in the above-described embodiment may be realized as an LSI that is typically an integrated circuit, or may be realized as a chip set. Each functional block of the terminal device 1 and the base station device 3 may be individually chipped, or a part or all of them may be integrated into a chip. Further, the method of circuit integration is not limited to LSI, and may be realized by a dedicated circuit or a general-purpose processor. In addition, when an integrated circuit technology that replaces LSI appears due to progress in semiconductor technology, an integrated circuit based on the technology can also be used.

In the above-described embodiment, the terminal device is described as an example of the communication device. However, the present invention is not limited to this, and the stationary or non-movable electronic device installed indoors or outdoors, For example, the present invention can also be applied to terminal devices or communication devices such as AV equipment, kitchen equipment, cleaning / washing equipment, air conditioning equipment, office equipment, vending machines, and other daily life equipment.

As described above, 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 without departing from the gist of the present invention. In addition, one aspect of the present invention can be modified in various ways within the scope of the claims, and the technical aspects of the present invention also relate to embodiments obtained by appropriately combining technical means disclosed in different embodiments. Included in the range. Moreover, it is the element described in each said embodiment, and the structure which substituted the element which has the same effect is also contained.

One embodiment of the present invention is used in, for example, a communication system, a communication device (for example, a mobile phone device, a base station device, a wireless LAN device, or a sensor device), an integrated circuit (for example, a communication chip), a program, or the like. be able to.

1 (1A, 1B, 1C) Terminal device 3 Base station device 10 Wireless transmission / reception unit 11 Antenna unit 12 RF unit 13 Baseband unit 14 Upper layer processing unit 15 Medium access control layer processing unit 16 Radio resource control layer processing unit 30 Wireless transmission / reception Unit 31 antenna unit 32 RF unit 33 baseband unit 34 upper layer processing unit 35 medium access control layer processing unit 36 radio resource control layer processing unit

Claims (10)

1. A receiver for receiving information indicating one interlace allocated for transmission of the PUSCH; and
   A transmission unit for transmitting the PUSCH,
   The one interlace is composed of G PRBs,
   Each of the G subbands included in the uplink cell bandwidth is composed of consecutive H PRBs that do not overlap in the frequency domain,
   Each of the consecutive H PRBs corresponds to a different interlace,
   The interlace corresponding to the nth PRB in the mth subband is different from the interlace corresponding to the nth PRB in the m + 1st subband.
2. Of the G PRBs corresponding to the one interlace, the difference between the PRB index of the kth PRB and the PRB index of the k + ath PRB is from (a−1) · H + 1 to a · H−1. The terminal device according to claim 1.
3. The terminal apparatus according to claim 1, wherein the PRB index of the PRB corresponding to the one interlace is given based on a pseudo random coefficient.
4. A transmitter for transmitting information indicating one interlace allocated for transmission of PUSCH; and
   A receiving unit for receiving the transmission of the PUSCH,
   The one interlace is composed of G PRBs,
   Each of the G subbands included in the uplink cell bandwidth is composed of consecutive H PRBs that do not overlap in the frequency domain,
   Each of the consecutive H PRBs corresponds to a different interlace,
   The interlace corresponding to the nth PRB in the mth subband is different from the interlace corresponding to the nth PRB in the m + 1th subband.
5. Of the G PRBs corresponding to the one interlace, the difference between the PRB index of the kth PRB and the PRB index of the k + ath PRB is from (a−1) · H + 1 to a · H−1. The base station apparatus according to claim 4.
6. The base station apparatus according to claim 4, wherein a PRB index of a PRB corresponding to the one interlace is given based on a pseudo random coefficient.
7. A communication method used for a terminal device,
   Receiving information indicating one interlace allocated for PUSCH transmission;
   Transmit the PUSCH,
   The one interlace is composed of G PRBs,
   Each of the G subbands included in the uplink cell bandwidth is composed of consecutive H PRBs that do not overlap in the frequency domain,
   Each of the consecutive H PRBs corresponds to a different interlace,
   The interlace corresponding to the nth PRB in the mth subband is different from the interlace corresponding to the nth PRB in the (m + 1) th subband.
8. A communication method used in a base station device,
   Transmitting information indicating one interlace allocated for PUSCH transmission;
   Receiving the PUSCH transmission,
   The one interlace is composed of G PRBs,
   Each of the G subbands included in the uplink cell bandwidth is composed of consecutive H PRBs that do not overlap in the frequency domain,
   Each of the consecutive H PRBs corresponds to a different interlace,
   The interlace corresponding to the nth PRB in the mth subband is different from the interlace corresponding to the nth PRB in the (m + 1) th subband.
9. An integrated circuit mounted on a terminal device,
   A receiving circuit for receiving information indicating one interlace allocated for PUSCH transmission; and
   A transmission circuit for transmitting the PUSCH,
   The one interlace is composed of G PRBs,
   Each of the G subbands included in the uplink cell bandwidth is composed of consecutive H PRBs that do not overlap in the frequency domain,
   Each of the consecutive H PRBs corresponds to a different interlace,
   The interlace corresponding to the nth PRB in the mth subband is different from the interlace corresponding to the nth PRB in the m + 1th subband.
10. An integrated circuit mounted on a base station device,
    A transmission circuit for transmitting information indicating one interlace allocated for PUSCH transmission; and
    A receiving circuit for receiving the transmission of the PUSCH,
    The one interlace is composed of G PRBs,
    Each of the G subbands included in the uplink cell bandwidth is composed of consecutive H PRBs that do not overlap in the frequency domain,
    Each of the consecutive H PRBs corresponds to a different interlace,
    The interlace corresponding to the nth PRB in the mth subband is different from the interlace corresponding to the nth PRB in the m + 1th subband.

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