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Base station device, terminal device, and transmission method

專利號(hào)
US10750524B2
公開日期
2020-08-18
申請人
FUJITSU LIMITED（JP Kawasaki）
發(fā)明人
Hongyang Chen; Jianming Wu; Tsuyoshi Shimomura
IPC分類
H04W72/12; H04W88/06; H04L27/26; H04W88/08; H04L5/00; H04W72/04; H04W52/28
技術(shù)領(lǐng)域
urllc,embb,data,signal,unit,in,indication,area,reception,addressed
地域： Kawasaki-shi, Kanagawa

摘要

A base station device includes: a processor circuitry configured to generate an indication signal; and a transmitter configured to transmit the indication signal to a terminal device. The indication signal indicates that there is no transmission of first data to be scheduled in a resource, and the resource may be assigned second data to be transmitted at low latency.

說明書

CROSS-REFERENCE TO RELATED APPLICATION

This application is a continuation of International Application No. PCT/JP2016/078923, filed on Sep. 29, 2016, the entire contents of which are incorporated herein by reference.

FIELD

The embodiments discussed herein are related to a base station device, a terminal device, and a transmission method.

BACKGROUND

In recent years, in the 3rd Generation Partnership Project (3GPP) that is the standards organization related to radio communication systems, studies have been conducted on the fifth generation mobile communication system (5G). In the fifth generation mobile communication systems, services conforming to eMBB (enhanced mobile broadband), mMTC (massive machine type communications), URLLC (Ultra Reliability and Low Latency Communications), and the like are going to be started.

For example, eMBB responds to a service of transmission of large-volume data, such as moving image data. In contrast, URLLC responds to a service in which high-reliable and low-latency communication is needed, such as automatic operations or telesurgery. In order to implement these services, discussions are actively conducted on how to set communication parameters, such as Transmission Time Interval (TTI), that is the duration of time represented by, for example, flames or subframes.

Specifically, for example, when eMBB data and URLLC data are transmitted by using the same frequency band, it is conceivable to multiplex the eMBB data and the URLLC data by using time-division multiplexing or frequency-division multiplexing. At this time, because a low latency is needed for the URLLC data, a large reduction in TTI of URLLC compared to TTI of eMBB is studied.

權(quán)利要求

1
What is claimed is:1. A base station device comprising:a processor circuitry configured to generate first data, second data to be transmitted at low latency as compared to the first data and an indication signal; anda transmitter configured to transmit the first data, the second data and the indication signal to a terminal device, whereinthe indication signal includes a plurality of bits and indicates whether an area included in a resource area for the first data is used for transmitting the second data, the area having a plurality of sub-areas,when one or more sub-areas are used for transmitting the second data, the transmitter stops transmitting the first data using the corresponding one or more sub-areas, the plurality of bits for the indication signal have a one-to-one mapping with the plurality of sub-areas to indicate that the corresponding one or more sub-areas are used for transmitting the second data, andwhen the one or more sub-areas are used for transmitting the first data,the transmitter transmits the first data using the corresponding one or more sub-areas, the plurality of bits for the indication signal have one-to-one mapping with the plurality of sub-areas to indicate that the corresponding one or more sub-areas are not used for transmitting the second data.2. The base station device according to claim 1, wherein a type of the first data is different from that of the second data.3. The base station device according to claim 1, wherein the second data is URLLC data.4. The base station device according to claim 1, wherein the first data is eMBB data.5. A terminal device comprising:a receiver configured to receive, from a base station, a reception signal including first data and an indication signal that indicates whether an area included in a resource area for the first data is used for transmitting second data to be transmitted at low latency as compared to the first data, the area having a plurality of sub-areas; anda processor circuitry configured to determine, based on the indication signal, whether the second data is included in one or more sub-areas, whereinthe receiver receives the reception signal including the second data in the one or more sub-areas and the indication signal including a plurality of bits which have a one-to-one mapping with the plurality of sub-areas to indicate that the corresponding one or more sub-areas are used for transmitting the second data, when the one or more sub-areas are used for transmitting the second data,receives the reception signal including the first data in the one or more sub-areas and the indication signal including a plurality of bits which have a one-to-one mapping with the plurality of sub-areas to indicate that the corresponding one or more sub-areas are not used for transmitting the second data, when the one or more sub-areas are not used for transmitting the second data, anddemodulates, based on the determination result obtained by the processor, the first data or the second data.6. The terminal device according to claim 5, wherein a type of the first data is different from that of the second data.7. The terminal device according to claim 5, wherein the second data is URLLC data.8. The terminal device according to claim 5, wherein the receiver demodulates the reception signal to obtain the first data by excluding the one or more sub-areas which are used for transmitting the second data after demodulating the indication signal.
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