KR-102963304-B1 - METHOD AND APPARATUS FOR CONTROL INFORMATTION TRANSMISSION IN WIRELESS COMMUNICATION SYSTEM

KR102963304B1KR 102963304 B1KR102963304 B1KR 102963304B1KR-102963304-B1

Abstract

The present disclosure relates to a communication technique and a system for integrating a 5G communication system with IoT technology to support higher data transmission rates than those of a 4G system. The present disclosure may be applied to intelligent services (e.g., smart homes, smart buildings, smart cities, smart cars or connected cars, healthcare, digital education, retail, security and safety-related services, etc.) based on 5G communication technology and IoT-related technology. According to one embodiment of the present disclosure, a method of a terminal of a communication system is characterized by receiving first downlink control information (DCI) including first priority information from a base station, receiving a second DCI including second priority information from the base station, checking whether a first uplink transmission resource related to the first DCI and a second uplink transmission resource related to the second DCI overlap in the time axis, and if the first uplink transmission resource and the second uplink transmission resource overlap in the time axis, performing an uplink transmission corresponding to the higher priority information based on the first priority information and the second priority information.

Inventors

정의창
윤수하
노훈동
여정호

Assignees

삼성전자주식회사

Dates

Publication Date: 20260511
Application Date: 20200513
Priority Date: 20190514

Claims (16)

In a method performed by a terminal of a communication system, A step of receiving first downlink control information (DCI) associated with first priority information from a base station; A step of receiving a second DCI associated with second priority information from the base station; A step of confirming that the resources of the physical uplink control channel (PUCCH) associated with the first DCI and the resources of the physical uplink shared channel (PUSCH) associated with the second DCI overlap in the time domain; If the priority of the PUCCH and the priority of the PUSCH are different based on the first priority information and the second priority information, the step of transmitting one corresponding to the higher priority between the PUCCH and the PUSCH to the base station; and If the priority of the PUCCH and the priority of the PUSCH are the same based on the first priority information and the second priority information, the method includes the step of multiplexing the PUCCH and the PUSCH through PUSCH-based multiplexing. The above PUSCH or PUCCH includes information regarding a HARQ-ACK codebook generated based on acknowledgment information for a plurality of downlink data, and A method characterized in that each acknowledgment bit for the plurality of downlink data is sorted in ascending order of cell index in the HARQ-ACK codebook and, for the same cell index, is sorted in ascending order of HARQ process index corresponding to the plurality of downlink data.
In paragraph 1, A method characterized by the step of multiplexing the PUCCH and the PUSCH including the step of rate-matching uplink data on the PUSCH based on uplink control information.
In paragraph 1, The method further includes the step of receiving an indicator that cancels uplink data transmission from the base station, and A method characterized by the above indicator instructing the cancellation of the uplink data transmission of a specific resource.
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In a method performed by a base station of a communication system, A step of transmitting first downlink control information (DCI) associated with first priority information to a terminal; and The method includes the step of transmitting a second DCI associated with second priority information to the above terminal, If the resources of the physical uplink control channel (PUCCH) associated with the first DCI and the resources of the physical uplink shared channel (PUSCH) associated with the second DCI overlap in the time domain, the method is: A step of receiving from the terminal one corresponding to the higher priority between the PUCCH and the PUSCH when the priority of the PUCCH and the priority of the PUSCH are different based on the first priority information and the second priority information; and If the priority of the PUCCH and the priority of the PUSCH are the same based on the first priority information and the second priority information, the method further includes the step of receiving information in which the PUCCH and the PUSCH are multiplexed through PUSCH-based multiplexing from the terminal. The above PUSCH or PUCCH includes information regarding a HARQ-ACK codebook generated based on acknowledgment information for a plurality of downlink data, and A method characterized in that each acknowledgment bit for the plurality of downlink data is sorted in ascending order of cell index in the HARQ-ACK codebook and, for the same cell index, is sorted in ascending order of HARQ process index corresponding to the plurality of downlink data.
In paragraph 5, A method characterized by rate matching uplink data on the above PUSCH based on uplink control information.
In paragraph 5, The method further includes the step of transmitting an indicator to cancel uplink data transmission to the above terminal, A method characterized by the above indicator instructing the cancellation of the uplink data transmission of a specific resource.
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In a terminal of a communication system, Transmitter/receiver; and A control unit connected to a transceiver is configured to receive first downlink control information (DCI) associated with first priority information from a base station, receive second DCI associated with second priority information from the base station, confirm that the resources of a physical uplink control channel (PUCCH) associated with the first DCI and the resources of a physical uplink shared channel (PUSCH) associated with the second DCI overlap in the time domain, and if the priority of the PUCCH and the priority of the PUSCH are different based on the first priority information and the second priority information, transmit one corresponding to the higher priority between the PUCCH and the PUSCH to the base station, and if the priority of the PUCCH and the priority of the PUSCH are the same based on the first priority information and the second priority information, multiplex the PUCCH and the PUSCH through PUSCH-based multiplexing. The above PUSCH or PUCCH includes information regarding a HARQ-ACK codebook generated based on acknowledgment information for a plurality of downlink data, and A terminal characterized in that each acknowledgment information bit for the plurality of downlink data is sorted in ascending order of cell index in the HARQ-ACK codebook and, for the same cell index, is sorted in ascending order of HARQ process index corresponding to the plurality of downlink data.
In Paragraph 9, A terminal characterized in that the control unit is further configured to rate-match uplink data on the PUSCH based on uplink control information in order to multiplex the PUCCH and the PUSCH.
In Paragraph 9, The above control unit is further configured to receive an indicator for canceling uplink data transmission from the base station, and A terminal characterized by the above indicator instructing the cancellation of the uplink data transmission of a specific resource.
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In a base station of a communication system, Transmitter/receiver; and It includes a control unit connected to the transceiver, which is configured to transmit first downlink control information (DCI) associated with first priority information to a terminal, and to transmit second DCI associated with second priority information to the terminal. When the resources of the physical uplink control channel (PUCCH) associated with the first DCI and the resources of the physical uplink shared channel (PUSCH) associated with the second DCI overlap in the time domain, the control unit receives from the terminal one corresponding to the higher priority between the PUCCH and the PUSCH when the priority of the PUCCH and the priority of the PUSCH are different based on the first priority information and the second priority information, and is further configured to receive information in which the PUCCH and the PUSCH are multiplexed through PUSCH-based multiplexing from the terminal when the priority of the PUCCH and the priority of the PUSCH are the same based on the first priority information and the second priority information. The above PUSCH or PUCCH includes information regarding a HARQ-ACK codebook generated based on acknowledgment information for a plurality of downlink data, and A base station characterized in that each acknowledgment bit for the plurality of downlink data is sorted in ascending order of cell index in the HARQ-ACK codebook and, for the same cell index, is sorted in ascending order of HARQ process index corresponding to the plurality of downlink data.
In Paragraph 13, A base station characterized by uplink data on the above PUSCH being rate-matched based on uplink control information.
In Paragraph 13, The above control unit is further configured to transmit an indicator to cancel uplink data transmission to the terminal, and A base station characterized by the above indicator instructing the cancellation of the uplink data transmission of a specific resource.
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Description

Method and apparatus for control information transmission in a wireless communication system The present disclosure relates to a wireless communication system, and in particular to a method for transmitting control information. Efforts are being made to develop improved 5G communication systems or pre-5G communication systems to meet the increasing demand for wireless data traffic following the commercialization of 4G communication systems. For this reason, 5G communication systems or pre-5G communication systems are referred to as systems beyond 4G networks or systems following LTE. The 5G communication system defined by 3GPP is called a New Radio (NR) system. To achieve high data transmission rates, the implementation of 5G communication systems in the mmWave band (e.g., the 60 GHz band) is being considered. In order to mitigate path loss and increase the transmission distance of radio waves in the ultra-high frequency band, beamforming, massive array multiple input/output (massive MIMO), full-dimensional multiple input/output (Full Dimensional MIMO: FD-MIMO), array antenna, analog beam-forming, and large-scale antenna technologies have been discussed and applied to NR systems in 5G communication systems. In addition, to improve the system's network, technologies such as advanced small cell, advanced small cell, cloud radio access network (cloud RAN), ultra-dense network, device-to-device communication (D2D), wireless backhaul, moving network, cooperative communication, Coordinated Multi-Points (CoMP), and interference cancellation are being developed in 5G communication systems. In addition, advanced coding modulation (ACM) methods such as FQAM (Hybrid FSK and QAM Modulation) and SWSC (Sliding Window Superposition Coding), as well as advanced access technologies such as FBMC (Filter Bank Multi Carrier), NOMA (non-orthogonal multiple access), and SCMA (sparse code multiple access), are being developed in 5G systems. Meanwhile, the Internet is evolving from a human-centered network where humans generate and consume information into an IoT (Internet of Things) network where distributed components, such as objects, exchange and process information. IoE (Internet of Everything) technology, which combines IoT with Big Data processing technologies through connections with cloud servers, is also emerging. To implement IoT, technological elements such as sensing technology, wired and wireless communication and network infrastructure, service interface technology, and security technology are required; consequently, technologies such as sensor networks, Machine-to-Machine (M2M) communication, and Machine-Type Communication (MTC) are currently being researched to facilitate the connection of objects. In an IoT environment, intelligent IT services that create new value for human life by collecting and analyzing data generated from connected objects can be provided. Through the convergence and integration of existing IT technologies with various industries, IoT can be applied to fields such as smart homes, smart buildings, smart cities, smart or connected cars, smart grids, healthcare, smart home appliances, and advanced medical services. Accordingly, various attempts are being made to apply 5G communication systems to IoT networks. For example, technologies such as sensor networks, Machine to Machine (M2M) communication, and Machine Type Communication (MTC) are being implemented using 5G communication techniques such as beamforming, MIMO, and array antennas. The application of cloud RAN as a big data processing technology, as previously described, can also be considered an example of the convergence of 5G and IoT technologies. As described above and with the advancement of wireless communication systems, it has become possible to provide various services, and thus, measures to effectively provide these services are required. Figure 1 is a diagram illustrating the basic structure of the time-frequency domain of a 5G communication system. Figure 2 is a diagram illustrating the frame, subframe, and slot structure of a 5G communication system. Figure 3 is a diagram illustrating an example of a bandwidth portion setting of a 5G communication system. Figure 4 is a diagram illustrating an example of a control area setting for a downlink control channel of a 5G communication system. Figure 5 is a diagram illustrating an example of the structure of a downlink control channel of a 5G communication system. Figure 6 is a diagram illustrating an example of the structure of an uplink control channel of a 5G communication system. FIG. 7 is a diagram illustrating an example of a transmission and reception operation of a plurality of base stations and a terminal according to the present disclosure. FIG. 8a is a diagram illustrating an example of the operation of a terminal receiving information related to the panel operation of the terminal. FIG. 8b is a diagram illustrating an example of the operation of a base station and a termina