WO2019082398A1 - User equipment and base station - Google Patents

Abstract

Disclosed is a technique for mapping a physical channel to a wireless resource in an NR system. An aspect of the present invention relates to user equipment having: a signal processing unit that divides transmission target data in a time direction at a time interval equal to or smaller than a time interval at which data is allocated, and that maps the divided data onto at least a first frequency band and a second frequency band; and a transmission and reception unit that transmits the mapped data to a base station.

Description

User equipment and base station

The present invention relates to a wireless communication system.

In 3GPP (3rd Generation Partnership Project), frequency hopping is used in LTE (Long Term Evolution) system and LTE-Advanced system in order to improve characteristics by frequency diversity effect.

For example, the Physical Uplink Shared Channel (PUSCH), by applying frequency hopping to the resource allocation shown on the left side of FIG. The blocks (RB # 0, RB # 1, RB # 2) can be transmitted by resource allocation in which each slot is separated into two different frequency bands.

Also, on the physical downlink shared channel (PDSCH), by applying two steps of frequency hopping (left → center → right in FIG. 2) to the resource allocation shown on the left in FIG. It can be sent by resource allocation as shown. That is, in the first step (left side → center in FIG. 2), each resource block (RB # 0, RB # 1, RB # 2) covering two slots is separated in the frequency direction, and the second step (FIG. 2) In the middle → right side of), each separated resource block is further separated in the frequency direction with respect to each slot.

3GPP TS 36.213 V8.8.0 (2009-09)

An NR (New Radio Access Technology) system is currently being discussed as a next-generation wireless communication system for LTE systems and LTE-Advanced systems.

Also in the NR system, it is considered to improve characteristics by the frequency diversity effect by frequency hopping, and a configuration in which one slot is divided into different resource blocks (RBs) and allocated to physical channels is considered.

An object of the present invention is to provide a physical channel mapping method in an NR system.

In order to solve the above problems, one aspect of the present invention divides data to be transmitted in a time direction at a time interval equal to or less than a time interval of a data allocation unit, and divides the divided data into at least a first frequency band and The present invention relates to a user apparatus including a signal processing unit that maps to two frequency bands, and a transmitting / receiving unit that transmits the mapped data to a base station.

According to the present invention, it is possible to provide a physical channel mapping scheme in an NR system.

FIG. 1 is a diagram illustrating an example of frequency hopping in an PUSCH in LTE. FIG. 2 is a diagram illustrating an example of frequency hopping of the PDSCH in LTE. FIG. 3 is a diagram showing an example of frequency hopping for each code block in NR. FIG. 4 is a diagram showing an example of frequency hopping which is an example of interference due to URLLC packets in NR. FIG. 5 is a schematic diagram illustrating a wireless communication system according to one embodiment of the present invention. FIG. 6 is a block diagram showing a functional configuration of a user apparatus according to an embodiment of the present invention. FIG. 7 is a diagram illustrating an example frequency hopping for each symbol according to an embodiment of the present invention. FIG. 8 is a diagram illustrating an example frequency hopping according to the number of code blocks according to an embodiment of the present invention. FIG. 9 is a diagram showing an example of frequency hopping according to the number of code blocks according to an embodiment of the present invention. FIG. 10 is a diagram illustrating an example frequency hopping for interference avoidance according to an embodiment of the present invention. FIG. 11 is a diagram illustrating an example frequency hopping common among physical channels according to an embodiment of the present invention. FIG. 12 is a block diagram showing a functional configuration of a base station according to an embodiment of the present invention. FIG. 13 is a block diagram showing a hardware configuration of a user apparatus and a base station according to an embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described based on the drawings.

In the following embodiments, a wireless communication system is disclosed in which data mapped to wireless resources by frequency hopping is transmitted and received. The wireless communication system according to the present disclosure is, without limitation, an NR system compliant with 3GPP, and in the NR system, data to be transmitted is typically allocated to contiguous resource blocks in the frequency direction.

For example, in the NR system, data to be transmitted is configured as a transport block in the upper layer, and the transport block provided from the upper layer is divided into code blocks (CB) as data units of channel coding in the physical layer. It is considered that the generated code block is transmitted in continuous resource blocks in the frequency direction. When code blocks are transmitted by frequency hopping in the NR system, for example, as shown in FIG. 3, a data mapping scheme may be considered in which data to be transmitted is transmitted in different frequency bands for each code block. However, in the illustrated data mapping scheme, it is assumed that there may be cases where sufficient frequency hopping gain can not be obtained depending on the radio conditions in these frequency bands.

In addition, there is a possibility that data to be transmitted may be interfered by, for example, an ultra-reliable and low latency communication (URLLC) packet. In this case, as shown in FIG. 4, it is assumed that there may be a case where the characteristic is degraded due to frequency hopping due to partial interference by the URLLC packet.

In addition, although it is conceivable to apply different frequency hopping schemes to different physical channels as in the LTE system, complexity is increased.

Therefore, in the radio communication system according to the present disclosure, the division scheme of data to be transmitted (that is, equally divided into two in the time direction) in frequency hopping in the LTE system is changed, and transmission is performed according to the division method described later. Data is divided in the time direction at arbitrary division positions. In summary of the frequency hopping scheme according to the present disclosure, data composed of data allocation units (such as resource blocks) continuous in the frequency direction is divided in the time direction (such as symbol units shorter than one slot) and divided in the time direction. Data is frequency hopped to different frequency bands. More specifically, as will be described later, data which continues in the frequency direction is divided by a division position in symbol units, a division position according to the number of data units (such as the number of code blocks) and / or a division position according to interference It may be divided into directions. Also, the division position may be commonly determined among physical channels to be transmitted.

First, a wireless communication system according to one embodiment of the present invention will be described with reference to FIG. FIG. 5 is a schematic diagram illustrating a wireless communication system according to one embodiment of the present invention.

As shown in FIG. 5, the wireless communication system 10 includes a user apparatus 100 and a base station 200. The wireless communication system 10 is typically an NR system, but is not limited thereto, and may be any 3GPP compliant wireless communication system defined by 3GPP, or a non-3GPP compliant wireless It may be a communication system.

The user apparatus 100 is any information processing apparatus that can be communicably connected to the base station 200 via a cell, and may be, for example, without limitation, a mobile phone, a smartphone, a tablet, a wearable apparatus, or the like.

The base station 200 performs wireless communication with a large number of user devices including the user device 100 under the control of a higher station (not shown) such as a core network. In the NR system, base station 200 may be referred to, for example, as gNB. Although only one base station 200 is shown in the illustrated embodiment, typically a number of base stations are deployed to cover the coverage area of the wireless communication system 10.

The user equipment according to one embodiment of the present invention will now be described with reference to FIG. FIG. 6 is a block diagram showing a functional configuration of a user apparatus according to an embodiment of the present invention.

As shown in FIG. 6, the user apparatus 100 includes a signal processing unit 110 and a transmission / reception unit 120.

The signal processing unit 110 divides transmission target data in the time direction (for example, one symbol to several symbols) or less at a time interval (such as one slot) equal to or less than a data allocation unit time interval, and divides the divided data into multiple different frequencies Map to band. For example, data to be transmitted may be any data unit such as a code block which is a data unit of channel coding generated by dividing a transport block. The signal processing unit 110 divides data to be transmitted according to a division scheme to be described later in a time direction (for example, one symbol to several symbols) shorter than a time interval (for example, one slot) of data allocation units such as resource blocks. And (typically, without dividing in the frequency direction), the data divided in the time direction is distributed and mapped to radio resources of two or more different frequency bands. Each frequency band may be separated without overlapping, or may partially overlap. Also, data to be transmitted may be mapped to a plurality of different frequency bands in one or more data allocation units.

The transmitting and receiving unit 120 transmits, to the base station 200, data mapped to a plurality of different frequency bands. Specifically, the transmitting and receiving unit 120 transmits and receives various downlink and / or uplink signals to and from the base station 200, and the data mapped by the signal processing unit 110 to a plurality of frequency bands is transmitted to the base station 200. Send. For example, the transmitting / receiving unit 120 receives the mapping instruction from the base station 200, and the signal processing unit 110 maps the data to be transmitted to different frequency bands according to the frequency hopping scheme described later according to the received mapping instruction. It is also good.

The signal processing unit 110 can be realized by a processor, a circuit or the like, and the transmission / reception unit 120 can be realized by a transmitter, a receiver, and / or a transceiver.

The frequency hopping scheme according to one embodiment of the present invention will now be described with reference to FIG. FIG. 7 is a diagram illustrating an example frequency hopping for each symbol according to an embodiment of the present invention.

In one embodiment, the signal processing unit 110 divides data having a certain time unit (such as a slot) into time units (one symbol) shorter than the time unit, and the odd-numbered time intervals (odd-numbered time units). And the like may be mapped to a certain frequency band, and the divided data may be mapped to another frequency band in even-numbered short time intervals (eg, even-numbered symbols).

Specifically, as shown in FIG. 7, data to be transmitted is divided into two code blocks CB # 0 and CB # 1. Then, each code block is divided in the time direction for each symbol, and the divided data is mapped to different frequency bands alternately in the time direction. That is, as illustrated, first, the data of CB # 0 divided in the time direction for each symbol maps the data associated with the odd-numbered symbol and the data associated with the even-numbered symbol to different frequency bands. Sent by Next, data of CB # 1 divided in the time direction for each symbol is transmitted by mapping data associated with odd-numbered symbols and data associated with even-numbered symbols in different frequency bands.

In the illustrated example, the case where the number of code blocks is two has been described, but those skilled in the art can easily understand that the same frequency hopping method is applicable to the case where the number of code blocks is three or more. It will Also, in the illustrated example, the case where two frequency bands are used for frequency hopping has been described, but three or more frequency bands may be used. In this case, data associated with odd-numbered symbols and data associated with even-numbered symbols may be frequency hopped to three or more frequency bands, or symbol groups may correspond to three or more frequency bands. The data associated with each symbol group may be mapped to corresponding frequency bands. Also, data mapping may be performed not only in the order from the frequency direction to the time direction, but also in the order from the time direction to the frequency direction.

The data mapped in this manner is transmitted to the base station 200 by the transceiver unit 110, and the base station 200 receives the frequency-hopped data.

As described above, in the frequency hopping method according to the present embodiment, frequency hopping can be performed regardless of the number of data units (such as the number of code blocks) constituting transmission target data, and a frequency hopping gain can be obtained.

The frequency hopping scheme according to one embodiment of the present invention will now be described with reference to FIGS. 8 and 9 illustrate exemplary frequency hopping per code block according to one embodiment of the present invention.

In one embodiment, data to be transmitted is composed of a predetermined data unit (such as a code block), and the signal processing unit 110 is adapted to the number of data units (such as the number of code blocks) that constitute data to be transmitted. Each data unit is divided in time units (several symbols etc.), and data divided in a certain time interval (several symbols etc.) in that time unit is mapped to a certain frequency band, and another time interval (several symbols Etc.) may be mapped to different frequency bands.

Specifically, as shown in FIG. 8, data to be transmitted is divided into two code blocks CB # 0 and CB # 1. Then, each code block is divided in the time direction according to the number of code blocks, and the divided data is mapped to different frequency bands alternately in the time direction. That is, as illustrated, first, data of CB # 0 divided in the time direction according to the number of code blocks is transmitted by alternately mapping to different frequency bands. Next, data of CB # 1 divided in the time direction according to the number of code blocks is transmitted by alternately mapping to different frequency bands.

Further, as shown in FIG. 9, data to be transmitted is divided into three code blocks CB # 0, CB # 1 and CB # 2. Then, each code block is divided in the time direction according to the number of code blocks, and the divided data is mapped to different frequency bands alternately in the time direction. That is, as illustrated, first, data of CB # 0 divided in the time direction according to the number of code blocks is transmitted by alternately mapping to different frequency bands. Next, data of CB # 1 divided in the time direction according to the number of code blocks is transmitted by alternately mapping to different frequency bands. Furthermore, data of CB # 2 divided in the time direction according to the number of code blocks is transmitted by alternately mapping to different frequency bands.

For example, even if the division position in the time direction according to the number of code blocks is determined based on the number of time intervals (such as the number of symbols) which can be subdivided in the time direction and the number of data units of data to be transmitted (such as the number Well, specifically,

に従って決定されてもよい。ここで、ｔ_ｓｐは周波数ホッピング先を変更するシンボルのインデックスであり、Ｎ_ｓｙｍｂは１スロットのシンボル数（復調リファレンス信号（ＤＭＲＳ）は除く）であり、Ｎ_ＣＢはコードブロック数である。

It may be determined according to Here, t _sp is an index of a symbol for changing the frequency hopping destination, N _symb is the number of symbols in one slot (except for the demodulation reference signal (DMRS)), and N _CB is the number of code blocks.

The data mapped in this manner is transmitted to the base station 200 by the transceiver unit 110, and the base station 200 receives the frequency-hopped data.

Although the illustrated example illustrates the case where two frequency bands are used for frequency hopping, three or more frequency bands may be used. Also, data mapping may be performed not only in the order from the frequency direction to the time direction, but also in the order from the time direction to the frequency direction.

As described above, in the frequency hopping method according to the present embodiment, frequency hopping is performed according to the number of data units constituting transmission target data, and frequency hopping gain is reduced while suppressing switching of frequency hopping that may cause waveform distortion. You can get it.

The frequency hopping scheme according to one embodiment of the present invention will now be described with reference to FIG. FIG. 10 is a diagram illustrating an example frequency hopping for interference avoidance according to an embodiment of the present invention.

In one embodiment, the signal processing unit 110 divides transmission target data in the time direction according to interference, maps the divided data in a certain time interval (eg, several symbols) to a certain frequency band, and other time intervals. The divided data may be mapped to another frequency band.

Specifically, as shown in FIG. 10, the signal processing unit 110 divides data to be transmitted in the time direction so as to avoid radio resources causing interference, and the divided data has no interference in a frequency band or the like. Map to another frequency band of For example, the radio resource in which the interference occurs may be notified from the base station 200, and the signal processing unit 110 performs the frequency hopping described above to avoid the interference based on the interference information indicating the notified radio resource in which the interference occurs. Run.

The data mapped in this manner is transmitted to the base station 200 by the transceiver unit 110, and the base station 200 receives the frequency-hopped data.

Although the illustrated example illustrates the case where two frequency bands are used for frequency hopping, three or more frequency bands may be used. Also, data mapping may be performed not only in the order from the frequency direction to the time direction, but also in the order from the time direction to the frequency direction.

As described above, in the frequency hopping method according to the present embodiment, frequency hopping is performed according to interference, and while suppressing switching of frequency hopping that may cause waveform distortion, frequency hopping gain is obtained while avoiding partial interference. be able to.

The frequency hopping scheme according to one embodiment of the present invention will now be described with reference to FIG. FIG. 11 is a diagram illustrating an example frequency hopping common among physical channels according to an embodiment of the present invention.

In one embodiment, the signal processing unit 110 divides data to be transmitted according to the same division scheme for different physical channels, and maps the divided data in a certain time interval (such as several symbols) to a certain frequency band, Data divided in other time intervals (eg, several symbols) may be mapped to other frequency bands.

Specifically, as shown in FIG. 11, data of each physical channel (PUSCH, PDSCH, PUCCH, etc.) to be transmitted is divided into two code blocks CB # 0 and CB # 1. Each code block is divided in the time direction according to a common division scheme for different physical channels, and the divided data is mapped to different frequency bands alternately in the time direction. That is, as illustrated, first, each data of CB # 0 divided in the time direction according to a common division scheme for different physical channels is transmitted by mapping to different frequency bands. Next, each data of CB # 1 divided in the time direction according to the division scheme is transmitted by mapping to different frequency bands.

For example, as a common division scheme, the division scheme according to the symbol unit, the division scheme according to the number of data units (such as the number of code blocks) and / or the division scheme according to interference may be applied. A division scheme of one may be applied.

The data mapped in this manner is transmitted to the base station 200 by the transceiver unit 110, and the base station 200 receives the frequency-hopped data.

Although the illustrated example illustrates the case where two frequency bands are used for frequency hopping, three or more frequency bands may be used. Also, data mapping may be performed not only in the order from the frequency direction to the time direction, but also in the order from the time direction to the frequency direction.

As described above, in the frequency hopping method according to the present embodiment, the same frequency hopping division method is applied to different physical channels, and a separate frequency hopping method is applied to each physical channel. , To avoid the increase in complexity.

Next, a base station according to an embodiment of the present invention will be described with reference to FIG. FIG. 12 is a block diagram showing a functional configuration of a base station according to an embodiment of the present invention.

As shown in FIG. 12, the base station 200 includes a communication control unit 210 and a scheduling unit 220.

The communication control unit 210 controls wireless communication with the user device 100. Specifically, the communication control unit 210 transmits and receives various wireless signals such as downlink control / data signals and / or uplink control / data signals in order to perform wireless communication with the user apparatus 100.

The scheduling unit 220 divides data to be transmitted in the time direction, and maps the divided data to a plurality of different frequency bands.

In one embodiment, the scheduling unit 220 divides data to be transmitted into predetermined data units (such as code blocks), divides each data unit in a time unit (such as one symbol) in the time direction, and Map divided data in a unit odd-numbered time interval (odd-numbered symbol etc.) to a certain frequency band, and map divided data in even-numbered time intervals (even-numbered symbol etc.) to another frequency band May be

In another embodiment, the scheduling unit 220 divides data to be transmitted into predetermined data units (such as code blocks), and a time unit (such as a few symbols) according to the number of data units that constitute the data to be transmitted. Divide each data unit, map the divided data in a certain time interval (several symbols etc.) to a certain frequency band, and divide the divided data in another time interval (several symbols etc.) It may map to different frequency bands.

In another embodiment, the scheduling unit 220 divides data to be transmitted in the time direction according to interference, maps the divided data in a certain time interval (eg, several symbols) to a certain frequency band, and Data divided in a time interval may be mapped to another frequency band.

In another embodiment, the scheduling unit 220 divides data to be transmitted according to the same division scheme for different physical channels, and maps the divided data in a certain time interval (eg, several symbols) to a certain frequency band Alternatively, data divided in another time interval (eg, several symbols) may be mapped to another frequency band.

The data mapped in this manner is transmitted to the user apparatus 100 by the communication control unit 210, and the user apparatus 100 receives the frequency hopping data.

The communication control unit 210 can be realized by a transmitter, a receiver, and / or a transceiver, and the scheduling unit 220 can be realized by a processor, a circuit or the like. Also, in the illustrated example, the case where two frequency bands are used for frequency hopping has been described, but three or more frequency bands may be used. Also, data mapping may be performed not only in the order from the frequency direction to the time direction, but also in the order from the time direction to the frequency direction.

Thus, in the frequency hopping scheme according to the present embodiment, the base station 200 applies frequency hopping to downlink data, similar to the frequency hopping scheme applied to uplink data described above for the user apparatus 100. be able to.

In each of the embodiments described above, although the data divided for frequency hopping is mapped to two spaced frequency bands, the data mapping according to the present disclosure is not limited to this and partially overlapping 2 It may be mapped to one frequency band, or may be mapped to three or more spaced or partially overlapping frequency bands.

Also, an additional frequency hopping step may be applied to the frequency hopping scheme according to the present disclosure, such as the two-step frequency hopping of PDSCH in the LTE system described above in connection with FIG. For example, a common partitioning scheme may be applied to different physical channels as described above, and additional frequency hopping steps may be applied to only specific physical channels.

Also, although the above embodiments have been described using code blocks as channel coding data units, the frequency hopping scheme according to the present disclosure is not limited to this, and any other channel coding data unit may be applied. May be

Note that the block diagram used in the description of the above embodiment shows blocks in units of functions. These functional blocks (components) are realized by any combination of hardware and / or software. Moreover, the implementation means of each functional block is not particularly limited. That is, each functional block may be realized by one physically and / or logically coupled device, or directly and / or indirectly two or more physically and / or logically separated devices. It may be connected by (for example, wired and / or wireless) and realized by the plurality of devices.

For example, the user apparatus 100 and the base station 200 in one embodiment of the present invention may function as a computer that performs the processing of the wireless communication method of the present invention. FIG. 13 is a block diagram showing the hardware configuration of the user apparatus 100 and the base station 200 according to an embodiment of the present invention. The above-described user apparatus 100 and base station 200 may be physically configured as a computer apparatus including a processor 1001, a memory 1002, a storage 1003, a communication apparatus 1004, an input apparatus 1005, an output apparatus 1006, a bus 1007 and the like. .

In the following description, the term "device" can be read as a circuit, a device, a unit, or the like. The hardware configuration of the user apparatus 100 and the base station 200 may be configured to include one or more of the devices illustrated in the drawing, or may be configured without including some devices.

Each function in the user apparatus 100 and the base station 200 causes the processor 1001 to perform an operation by reading predetermined software (program) on hardware such as the processor 1001, the memory 1002, and the like, communication by the communication apparatus 1004, and memory This is realized by controlling reading and / or writing of data in the storage 1002 and the storage 1002.

The processor 1001 operates, for example, an operating system to control the entire computer. The processor 1001 may be configured by a central processing unit (CPU: Central Processing Unit) including an interface with a peripheral device, a control device, an arithmetic device, a register, and the like. For example, each component described above may be implemented by the processor 1001.

Also, the processor 1001 reads a program (program code), a software module or data from the storage 1003 and / or the communication device 1004 to the memory 1002, and executes various processing according to these. As a program, a program that causes a computer to execute at least a part of the operations described in the above embodiments is used. For example, processing by each component of the user apparatus 100 and the base station 200 may be realized by a control program stored in the memory 1002 and operated by the processor 1001, and may be realized similarly for other functional blocks. . The various processes described above have been described to be executed by one processor 1001, but may be executed simultaneously or sequentially by two or more processors 1001. The processor 1001 may be implemented by one or more chips. The program may be transmitted from the network via a telecommunication line.

The memory 1002 is a computer readable recording medium, and includes, for example, at least one of a ROM (Read Only Memory), an EPROM (Erasable Programmable ROM), an EEPROM (Electrically Erasable Programmable ROM), and a RAM (Random Access Memory). It may be done. The memory 1002 may be called a register, a cache, a main memory (main storage device) or the like. The memory 1002 can store a program (program code), a software module, and the like that can be executed to implement the wireless communication method according to an embodiment of the present invention.

The storage 1003 is a computer readable recording medium, and for example, an optical disc such as a CD-ROM (Compact Disc ROM), a hard disc drive, a flexible disc, a magneto-optical disc (eg, a compact disc, a digital versatile disc, a Blu-ray A (registered trademark) disk, a smart card, a flash memory (for example, a card, a stick, a key drive), a floppy (registered trademark) disk, a magnetic strip, and the like may be used. The storage 1003 may be called an auxiliary storage device. The above-mentioned storage medium may be, for example, a database including the memory 1002 and / or the storage 1003, a server or any other suitable medium.

The communication device 1004 is hardware (transmission / reception device) for performing communication between computers via a wired and / or wireless network, and is also called, for example, a network device, a network controller, a network card, a communication module, or the like. For example, each component described above may be realized by the communication device 1004.

The input device 1005 is an input device (for example, a keyboard, a mouse, a microphone, a switch, a button, a sensor, and the like) that receives an input from the outside. The output device 1006 is an output device (for example, a display, a speaker, an LED lamp, etc.) that performs output to the outside. The input device 1005 and the output device 1006 may be integrated (for example, a touch panel).

In addition, devices such as the processor 1001 and the memory 1002 are connected by a bus 1007 for communicating information. The bus 1007 may be configured by a single bus or may be configured by different buses among the devices.

In addition, the user apparatus 100 and the base station 200 include hardware such as a microprocessor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a programmable logic device (PLD), and a field programmable gate array (FPGA). The hardware may be configured, and part or all of each functional block may be realized by the hardware. For example, processor 1001 may be implemented in at least one of these hardware.

The notification of information is not limited to the aspects / embodiments described herein, and may be performed in other manners. For example, notification of information may be physical layer signaling (for example, Downlink Control Information (DCI), Uplink Control Information (UCI)), upper layer signaling (for example, Radio Resource Control (RRC) signaling, Medium Access Control (MAC) signaling, It may be implemented by broadcast information (MIB (Master Information Block), SIB (System Information Block)), other signals, or a combination thereof. Also, RRC signaling may be referred to as an RRC message, and may be, for example, an RRC connection setup (RRC Connection Setup) message, an RRC connection reconfiguration (RRC Connection Reconfiguration) message, or the like.

Each aspect / example described in this specification is LTE (Long Term Evolution), LTE-A (LTE-Advanced), SUPER 3G, IMT-Advanced, 4G, 5G, FRA (Future Radio Access), W-CDMA (Registered trademark), GSM (registered trademark), CDMA2000, UMB (Ultra Mobile Broadband), IEEE 802.11 (Wi-Fi), IEEE 802.16 (WiMAX), IEEE 802.20, UWB (Ultra-Wide Band), The present invention may be applied to a system utilizing Bluetooth (registered trademark), other appropriate systems, and / or an advanced next-generation system based on these.

As long as there is no contradiction, the processing procedure, sequence, flow chart, etc. of each aspect / example described in this specification may be replaced. For example, for the methods described herein, elements of the various steps are presented in an exemplary order and are not limited to the particular order presented.

The specific operation supposed to be performed by the base station 200 in this specification may be performed by the upper node in some cases. In a network of one or more network nodes with a base station, the various operations performed for communication with the terminals may be the base station and / or other network nodes other than the base station (eg, It is clear that it may be performed by MME or S-GW etc but not limited to these). Although the case where one other network node other than a base station was illustrated above was illustrated, it may be a combination of a plurality of other network nodes (for example, MME and S-GW).

Information and the like may be output from the upper layer (or lower layer) to the lower layer (or upper layer). Input and output may be performed via a plurality of network nodes.

The input / output information or the like may be stored in a specific place (for example, a memory) or may be managed by a management table. Information to be input or output may be overwritten, updated or added. The output information etc. may be deleted. The input information or the like may be transmitted to another device.

The determination may be performed by a value (0 or 1) represented by one bit, may be performed by a boolean value (Boolean: true or false), or may be compared with a numerical value (for example, a predetermined value). Comparison with the value).

Each aspect / example described in this specification may be used alone, may be used in combination, and may be switched and used along with execution. In addition, notification of predetermined information (for example, notification of "it is X") is not limited to what is explicitly performed, but is performed by implicit (for example, not notifying of the predetermined information) It is also good.

Although the present invention has been described above in detail, it is apparent to those skilled in the art that the present invention is not limited to the embodiments described herein. The present invention can be embodied as modifications and alterations without departing from the spirit and scope of the present invention defined by the description of the claims. Accordingly, the description in the present specification is for the purpose of illustration and does not have any limiting meaning on the present invention.

Software may be called software, firmware, middleware, microcode, hardware description language, or any other name, and may be instructions, instruction sets, codes, code segments, program codes, programs, subprograms, software modules. Should be interpreted broadly to mean applications, software applications, software packages, routines, subroutines, objects, executables, threads of execution, procedures, functions, etc.

Also, software, instructions, etc. may be sent and received via a transmission medium. For example, software may use a wireline technology such as coaxial cable, fiber optic cable, twisted pair and digital subscriber line (DSL) and / or a website, server or other using wireless technology such as infrared, radio and microwave When transmitted from a remote source, these wired and / or wireless technologies are included within the definition of transmission medium.

The information, signals, etc. described herein may be represented using any of a variety of different techniques. For example, data, instructions, commands, information, signals, bits, symbols, chips etc that may be mentioned throughout the above description may be voltage, current, electromagnetic waves, magnetic fields or particles, optical fields or photons, or any of these May be represented by a combination of

The terms described in the present specification and / or the terms necessary for the understanding of the present specification may be replaced with terms having the same or similar meanings. For example, the channels and / or symbols may be signals. Also, the signal may be a message. Also, the component carrier (CC) may be called a carrier frequency, a cell or the like.

The terms "system" and "network" as used herein are used interchangeably.

In addition, the information, parameters, and the like described in the present specification may be represented by absolute values, may be represented by relative values from predetermined values, or may be represented by corresponding other information. . For example, radio resources may be indexed.

The names used for the parameters described above are in no way limiting. In addition, the formulas etc. that use these parameters may differ from those explicitly disclosed herein. Since various channels (eg PUCCH, PDCCH etc.) and information elements (eg TPC etc.) can be identified by any suitable names, the various names assigned to these various channels and information elements can be Is not limited.

A base station can accommodate one or more (e.g., three) cells (also called sectors). If the base station accommodates multiple cells, the entire coverage area of the base station can be divided into multiple smaller areas, each smaller area being a base station subsystem (eg, a small base station RRH for indoor use: Remote Communication service can also be provided by Radio Head. The terms "cell" or "sector" refer to a part or all of the coverage area of a base station and / or a base station subsystem serving communication services in this coverage. Moreover, the terms "base station", "eNB", "cell" and "sector" may be used interchangeably herein. A base station may be called in terms of a fixed station (Node station), NodeB, eNodeB (eNB), access point (access point), femtocell, small cell, and the like.

The mobile station may be a subscriber station, a mobile unit, a subscriber unit, a wireless unit, a remote unit, a mobile device, a wireless device, a wireless communication device, a remote device, a mobile subscriber station, an access terminal, a mobile terminal, a wireless terminal, by those skilled in the art. It may also be called a terminal, a remote terminal, a handset, a user agent, a mobile client, a client, or some other suitable term.

The terms "determining", "determining" as used herein may encompass a wide variety of operations. “Decision”, “decision” are, for example, calculating, computing, processing, deriving, investigating, looking up (eg, table, database or another) Search in data structures), ascertaining may be considered as “judgement” or “decision”. Also, "determination" and "determination" are receiving (e.g. receiving information), transmitting (e.g. transmitting information), input (input), output (output), access (accessing) (for example, accessing data in a memory) may be regarded as “judged” or “decided”. Also, "judgement" and "decision" are to be considered as "judgement" and "decision" that they have resolved (resolving), selecting (selecting), choosing (choosing), establishing (establishing), etc. May be included. That is, "judgment" "decision" may include considering that some action is "judged" "decision".

The terms "connected", "coupled" or any variants thereof mean any direct or indirect connection or coupling between two or more elements, It can include the presence of one or more intermediate elements between two elements that are “connected” or “coupled”. The coupling or connection between elements may be physical, logical or a combination thereof. As used herein, the two elements are by using one or more wires, cables and / or printed electrical connections, and radio frequency as some non-limiting and non-exclusive examples. It can be considered "connected" or "coupled" to one another by using electromagnetic energy such as electromagnetic energy having wavelengths in the region, microwave region and light (both visible and invisible) regions.

The reference signal may be abbreviated as RS (Reference Signal), and may be called a pilot (Pilot) according to the applied standard.

As used herein, the phrase "based on" does not mean "based only on," unless expressly stated otherwise. In other words, the phrase "based on" means both "based only on" and "based at least on."

Any reference to an element using the designation "first," "second," etc. as used herein does not generally limit the quantity or order of those elements. These designations may be used herein as a convenient way of distinguishing between two or more elements. Thus, reference to the first and second elements does not mean that only two elements can be taken there, or that in any way the first element must precede the second element.

The “means” in the configuration of each device described above may be replaced with a “unit”, a “circuit”, a “device” or the like.

As long as "includes", "including", and variations thereof are used in the present specification or claims, these terms as well as the term "comprising" Is intended to be comprehensive. Further, it is intended that the term "or" as used in the present specification or in the claims is not an exclusive OR.

A radio frame may be comprised of one or more frames in the time domain. Each frame or frames in the time domain may be referred to as subframes. A subframe may be further comprised of one or more slots in the time domain. A slot may further be configured with one or more symbols (OFDM symbols, SC-FDMA symbols, etc.) in the time domain. A radio frame, a subframe, a slot, and a symbol all represent time units in transmitting a signal. A radio frame, a subframe, a slot, and a symbol may be another name corresponding to each. For example, in the LTE system, the base station performs scheduling to assign radio resources (such as frequency bandwidth and transmission power that can be used in each mobile station) to each mobile station. The minimum time unit of scheduling may be called a TTI (Transmission Time Interval). For example, one subframe may be called a TTI, a plurality of consecutive subframes may be called a TTI, and one slot may be called a TTI. A resource block (RB) is a resource allocation unit in time domain and frequency domain, and may include one or more consecutive subcarriers in the frequency domain. Also, the time domain of a resource block may include one or more symbols, and may be one slot, one subframe, or one TTI long. One TTI and one subframe may be configured of one or more resource blocks, respectively. The above-described radio frame structure is merely an example, and the number of subframes included in the radio frame, the number of slots included in the subframe, the number of symbols and resource blocks included in the slots, and the sub The number of carriers can vary.

Although the embodiments of the present invention have been described in detail, the present invention is not limited to the specific embodiments described above, and various modifications may be made within the scope of the subject matter of the present invention described in the claims.・ Change is possible.

10 wireless communication system 100 user apparatus 200 base station

Claims (7)

A signal processing unit that divides data to be transmitted in a time direction at a time interval equal to or less than a time interval of a data allocation unit, and maps the divided data to at least a first frequency band and a second frequency band;
A transmitting / receiving unit for transmitting the mapped data to a base station;
User equipment having The signal processing unit divides data having a first time unit in a second time unit shorter than the first time unit, and divides the data in an odd-numbered time interval of the second time unit. 2. The user apparatus according to claim 1, wherein the divided data is mapped to the second frequency band in even numbered time intervals of the second time unit, The data to be transmitted is composed of a predetermined data unit,
The signal processing unit divides each data unit in a third time unit according to the number of data units constituting the data, and divides the divided data in a first time interval of the third time unit. The user apparatus according to claim 1, mapping to the first frequency band, and mapping the divided data to the second frequency band in a second time interval of the third time unit. The signal processing unit divides the data to be transmitted in the time direction according to interference, maps the divided data in a first time interval to the first frequency band, and generates a second time interval in the second time interval. The user equipment according to claim 1, mapping divided data to said second frequency band. The signal processing unit divides the data to be transmitted according to the same division scheme for different physical channels, maps the divided data in the first time interval to the first frequency band, and The user apparatus according to claim 1, wherein the divided data is mapped to the second frequency band in a time interval. The transmitting and receiving unit receives a mapping instruction from the base station,
The user apparatus according to any one of claims 1 to 5, wherein the signal processing unit maps the data to be transmitted on the first frequency band and the second frequency band according to the received mapping instruction. A communication control unit that controls wireless communication with the user device;
A scheduling unit that divides data to be transmitted in the time direction at a time interval equal to or less than a time interval of a data allocation unit, and maps the divided data to at least a first frequency band and a second frequency band;
Base station with.

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