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EP-4637243-B1 - RESOURCE ALLOCATION METHOD, DEVICE AND SYSTEM OF WIRELESS COMMUNICATION SYSTEM

EP4637243B1EP 4637243 B1EP4637243 B1EP 4637243B1EP-4637243-B1

Inventors

  • CHOI, Kyungjun
  • NOH, MINSEOK
  • KWAK, JINSAM

Dates

Publication Date
20260513
Application Date
20190114

Claims (16)

  1. A user equipment, UE, configured to operate in a 3 rd generation partnership project, 3GPP,-based wireless communication system using a plurality of Bandwidth Parts, BWPs, in a cell, the UE comprising: a processor; and a communication module, wherein the processor is configured to: receive downlink control information, DCI, including a frequency domain resource allocation, FDRA, field, wherein a size of the DCI is derived from a first BWP with a size N BWP1 , and the FDRA field includes a resource indication value, RIV; and receive a physical downlink shared channel, PDSCH, corresponding to the DCI, on contiguous resource blocks, RBs, in a second BWP with a size N BWP2 , wherein, when N BWP2 > N BWP1 , the RIV corresponds to a starting RB index S and a length L of the contiguous RBs, where granularities of S and L are defined in units of RB sets in the second BWP, and a number M of RB sets is determined based on N BWP1 .
  2. The UE of claim 1, wherein an RB set of the M RB sets includes a plurality of RBs in the second BWP, and/or M is the same as N BWP1 .
  3. The UE of claim 1 or 2, wherein a size of the FDRA field is derived from the first BWP with the size N BWP1 .
  4. The UE of any one of claims 1 to 3, wherein the processor is configured to transmit a physical uplink control channel, PUCCH, including hybrid automatic repeat and request acknowledgement, HARQ-ACK, information for the PDSCH.
  5. A base station, BS, configured to operate in a 3 rd generation partnership project, 3GPP,-based wireless communication system using a plurality of Bandwidth Parts, BWPs, in a cell, the BS comprising: a processor; and a communication module, wherein the processor is configured to: transmit downlink control information, DCI, including a frequency domain resource allocation, FDRA, field, wherein a size of the DCI is derived from a first BWP with a size N BWP1 , and the FDRA field includes a resource indication value, RIV; and transmit a physical downlink shared channel, PDSCH, corresponding to the DCI, on contiguous resource blocks, RBs, in a second BWP with a size N BWP2 , wherein, when N BWP2 > N BWP1 , the RIV corresponds to a starting RB index S and a length L of the contiguous RBs, where granularities of S and L are defined in units of RB sets in the second BWP, and a number M of RB sets is determined based on N BWP1 .
  6. The BS of claim 5, wherein an RB set of the M RB sets includes a plurality of RBs in the second BWP, and/or M is the same as N BWP1 .
  7. The BS of claim 5 or 6, wherein a size of the FDRA field is derived from the first BWP with the size N BWP1 .
  8. The BS of any one of claims 5 to 7, wherein the processor is configured to receive a physical uplink control channel, PUCCH, including hybrid automatic repeat and request acknowledgement, HARQ-ACK, information for the PDSCH.
  9. A method performed by a user equipment, UE, configured to operate in a 3 rd generation partnership project, 3GPP,-based wireless communication system using a plurality of Bandwidth Parts, BWPs, in a cell, the method comprising: receiving downlink control information, DCI, including a frequency domain resource allocation, FDRA, field, wherein a size of the DCI is derived from a first BWP with a size N BWP1 , and the FDRA field includes a resource indication value, RIV; and receiving a physical downlink shared channel, PDSCH, corresponding to the DCI, on contiguous resource blocks, RBs, in a second BWP with a size N BWP2 , wherein, when N BWP2 > N BWP1 , the RIV corresponds to a starting RB index S and a length L of the contiguous RBs, where granularities of S and L are defined in units of RB sets in the second BWP, and a number M of RB sets is determined based on N BWP1 .
  10. The method of claim 9, wherein an RB set of the M RB sets includes a plurality of RBs in the second BWP, and/or M is the same as N BWP1 .
  11. The method of claim 9 or 10, wherein a size of the FDRA field is derived from the first BWP with the size N BWP1 .
  12. The method of any one of claims 9 to 11, further comprising: transmitting a physical uplink control channel, PUCCH, including hybrid automatic repeat and request acknowledgement, HARQ-ACK, information for the PDSCH.
  13. A method performed by a base station, BS, configured to operate in a 3 rd generation partnership project, 3GPP,-based wireless communication system using a plurality of Bandwidth Parts, BWPs, in a cell, the method comprising: transmitting downlink control information, DCI, including a frequency domain resource allocation, FDRA, field, wherein a size of the DCI is derived from a first BWP with a size N BWP1 , and the FDRA field includes a resource indication value, RIV; and transmitting a physical downlink shared channel, PDSCH, corresponding to the DCI, on contiguous resource blocks, RBs, in a second BWP with a size N BWP2 , wherein, when N BWP2 > N BWP1 , the RIV corresponds to a starting RB index S and a length L of the contiguous RBs, where granularities of S and L are defined in units of RB sets in the second BWP, and a number M of RB sets is determined based on N BWP1 .
  14. The method of claim 13, wherein an RB set of the M RB sets includes a plurality of RBs in the second BWP, and/or M is the same as N BWP1 .
  15. The method of claim 13 or 14, wherein a size of the FDRA field is derived from the first BWP with the size N BWP1 .
  16. The method of any one of claims 13 to 15, further comprising: receiving a physical uplink control channel, PUCCH, including hybrid automatic repeat and request acknowledgement, HARQ-ACK, information for the PDSCH.

Description

TECHNICAL FIELD The present invention relates to a wireless communication system. More specifically, the present invention relates to a wireless communication method, apparatus, and system for transmitting and receiving data channels and control channels. BACKGROUND ART After commercialization of 4th generation (4G) communication system, in order to meet the increasing demand for wireless data traffic, efforts are being made to develop new 5th generation (5G) communication systems. The 5G communication system is called as a beyond 4G network communication system, a post LTE system, or a new radio (NR) system. In order to achieve a high data transfer rate, 5G communication systems include systems operated using the millimeter wave (mmWave) band of 6 GHz or more, and include a communication system operated using a frequency band of 6 GHz or less in terms of ensuring coverage so that implementations in base stations and terminals are under consideration. A 3rd generation partnership project (3GPP) NR system enhances spectral efficiency of a network and enables a communication provider to provide more data and voice services over a given bandwidth. Accordingly, the 3GPP NR system is designed to meet the demands for high-speed data and media transmission in addition to supports for large volumes of voice. The advantages of the NR system are to have a higher throughput and a lower latency in an identical platform, support for frequency division duplex (FDD) and time division duplex (TDD), and a low operation cost with an enhanced end-user environment and a simple architecture. For more efficient data processing, dynamic TDD of the NR system may use a method for varying the number of orthogonal frequency division multiplexing (OFDM) symbols that may be used in an uplink and downlink according to data traffic directions of cell users. For example, when the downlink traffic of the cell is larger than the uplink traffic, the base station may allocate a plurality of downlink OFDM symbols to a slot (or subframe). Information about the slot configuration should be transmitted to the terminals. In order to alleviate the path loss of radio waves and increase the transmission distance of radio waves in the mmWave band, in 5G communication systems, beamforming, massive multiple input/output (massive MIMO), full dimensional MIMO (FD-MIMO), array antenna, analog beam-forming, hybrid beamforming that combines analog beamforming and digital beamforming, and large scale antenna technologies are discussed. In addition, for network improvement of the system, in the 5G communication system, technology developments related to evolved small cells, advanced small cells, cloud radio access network (cloud RAN), ultra-dense network, device to device communication (D2D), vehicle to everything communication (V2X), wireless backhaul, non-terrestrial network communication (NTN), moving network, cooperative communication, coordinated multi-points (CoMP), interference cancellation, and the like are being made. In addition, in the 5G system, hybrid FSK and QAM modulation (FQAM) and sliding window superposition coding (SWSC), which are advanced coding modulation (ACM) schemes, and filter bank multi-carrier (FBMC), non-orthogonal multiple access (NOMA), and sparse code multiple access (SCMA), which are advanced connectivity technologies, are being developed. Meanwhile, in a human-centric connection network where humans generate and consume information, the Internet has evolved into the Internet of Things (IoT) network, which exchanges information among distributed components such as objects. Internet of Everything (IoE) technology, which combines IoT technology with big data processing technology through connection with cloud servers, is also emerging. In order to implement IoT, technology elements such as sensing technology, wired/wireless communication and network infrastructure, service interface technology, and security technology are required, so that in recent years, technologies such as sensor network, machine to machine (M2M), and machine type communication (MTC) have been studied for connection between objects. In the IoT environment, an intelligent internet technology (IT) service that collects and analyzes data generated from connected objects to create new value in human life can be provided. Through the fusion and mixture of existing information technology (IT) and various industries, IoT can be applied to fields such as smart home, smart building, smart city, smart car or connected car, smart grid, healthcare, smart home appliance, and advanced medical service. Accordingly, various attempts have been made to apply the 5G communication system to the IoT network. For example, technologies such as a sensor network, a machine to machine (M2M), and a machine type communication (MTC) are implemented by techniques such as beamforming, MIMO, and array antennas. The application of the cloud RAN as the big data processing technology described