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CN-122003831-A - Method and apparatus for transmitting and receiving signal in communication system

CN122003831ACN 122003831 ACN122003831 ACN 122003831ACN-122003831-A

Abstract

The present disclosure relates to 5G or 6G communication systems for supporting higher data transmission rates than 4G communication systems such as LTE. According to an embodiment, a method performed by a UE in a communication system may be provided. According to an embodiment, the method may include receiving information related to a plurality of candidate Physical Uplink Control Channel (PUCCH) resources in a first Radio Access Technology (RAT) via higher layer signaling, receiving Downlink Control Information (DCI) for scheduling a Physical Uplink Shared Channel (PUSCH) in a second RAT, wherein the DCI includes a bit field indicating candidate PUCCH resources included in the plurality of candidate PUCCH resources, performing rate matching applied to a Resource Element (RE) overlapping the candidate PUCCH resources among the Resource Elements (REs) included in the PUSCH, and transmitting the PUSCH to which the rate matching is applied.

Inventors

  • LI DEXI
  • JIN DONGMING
  • JIN YUANJUN
  • LI QIZHAI

Assignees

  • 三星电子株式会社

Dates

Publication Date
20260508
Application Date
20241011
Priority Date
20231012

Claims (15)

  1. 1. A method performed by a terminal in a communication system, the method comprising: receiving, via higher layer signaling, information related to a plurality of candidate physical uplink control channel, PUCCH, resources in a first radio access technology, RAT; Receiving downlink control information, DCI, for scheduling a physical uplink shared channel, PUSCH, in a second RAT, wherein the DCI includes a bit field indicating a candidate PUCCH resource included in the plurality of candidate PUCCH resources; Performing rate matching applied to REs overlapping with the candidate PUCCH resources among the resource elements REs included in the PUSCH, and And transmitting the PUSCH to which the rate matching is applied.
  2. 2. The method of claim 1, wherein the number of bits in the bit field is determined to satisfy Wherein L is related to the number of the plurality of candidate PUCCH resources, and Wherein the bit field indicates a value corresponding to an index of the candidate PUCCH resource, or Wherein one bit in the bit field indicates a value corresponding to a time domain position of the candidate PUCCH resource, and the remaining bits in the bit field other than the one bit indicate a value corresponding to a frequency domain position of the PUCCH resource.
  3. 3. The method of claim 1, wherein, in case of receiving a Medium Access Control (MAC) Control Element (CE) indicating an activated candidate PUCCH resource of the plurality of candidate PUCCH resources, the bit field is a first bitmap indicating the candidate PUCCH resources included in the activated candidate PUCCH resources, and a size of the first bitmap is equal to the number of the activated candidate PUCCH resources, Wherein, in case that the MAC CE is not received, the bit field is a second bitmap indicating the candidate PUCCH resources included in the plurality of candidate PUCCH resources, and a size of the second bitmap is equal to the number of the plurality of candidate PUCCH resources, Wherein, in case of receiving the MAC CE, the activated candidate PUCCH resource is applied after a slot offset from a slot in which the MAC CE is received, and Wherein the slot offset is a predefined value or is configured via higher layer signaling.
  4. 4. The method of claim 1, wherein the information related to the plurality of candidate PUCCH resources comprises information related to a starting resource block RB index of the plurality of candidate PUCCH resources in a frequency domain and information related to the number of the plurality of candidate PUCCH resources, Wherein the information related to the starting RB index and the information related to the number of the plurality of candidate PUCCH resources are received via higher layer signaling, the DCI further includes an indicator of whether the bit field is included in the DCI, and Wherein the rate matching is not performed in a case where the bit field is set to all "1" or to all "0".
  5. 5. The method of claim 1, wherein in case that one of symbols included in a first half slot of a slot to which the rate matching RE is applied corresponds to the PUSCH and symbols included in the first half slot of the slot for the PUSCH is configured with a demodulation reference signal DM-RS for the PUSCH: REs corresponding to all symbols of the slot of the PUSCH are rate matched in RBs corresponding to the candidate PUCCH resources, or The DM-RS is transmitted in one of symbols included in a latter half slot of the PUSCH.
  6. 6. The method of claim 1, wherein, in a case where a first symbol of symbols included in a first half slot of a slot for the PUSCH and a second symbol of symbols included in a second half slot of the slot for the PUSCH are configured with DM-RS for the PUSCH: In the case where the RE to which the rate matching is applied corresponds to a symbol included in the first half slot, the DM-RS configured for the first symbol is not transmitted and the DM-RS configured for the second symbol is transmitted, and In case that the RE to which the rate matching is applied corresponds to a symbol included in the second half slot, the DM-RS configured for the first symbol is transmitted and the DM-RS configured for the second symbol is not transmitted.
  7. 7. A terminal in a communication system, the terminal comprising: Transceiver, and A processor connected to the transceiver, the processor configured to: receiving, via higher layer signaling, information related to a plurality of candidate physical uplink control channel, PUCCH, resources in a first radio access technology, RAT; Receiving downlink control information, DCI, for scheduling a physical uplink shared channel, PUSCH, in a second RAT, wherein the DCI includes a bit field indicating a candidate PUCCH resource included in the plurality of candidate PUCCH resources; Performing rate matching applied to REs overlapping with the candidate PUCCH resources among the resource elements REs included in the PUSCH, and And transmitting the PUSCH to which the rate matching is applied.
  8. 8. The terminal of claim 7, wherein the number of bits in the bit field is determined to satisfy Wherein L is related to the number of the plurality of candidate PUCCH resources, and Wherein the bit field indicates a value corresponding to an index of the candidate PUCCH resource, or Wherein one bit in the bit field indicates a value corresponding to a time domain position of the candidate PUCCH resource, and the remaining bits in the bit field other than the one bit indicate a value corresponding to a frequency domain position of the PUCCH resource.
  9. 9. The terminal of claim 7, wherein, in case of receiving a Medium Access Control (MAC) Control Element (CE) indicating an activated candidate PUCCH resource among the plurality of candidate PUCCH resources, the bit field is a first bitmap indicating the candidate PUCCH resources included in the activated candidate PUCCH resources, and a size of the first bitmap is equal to the number of the activated candidate PUCCH resources, Wherein, in case that the MAC CE is not received, the bit field is a second bitmap indicating the candidate PUCCH resources included in the plurality of candidate PUCCH resources, and a size of the second bitmap is equal to the number of the plurality of candidate PUCCH resources, Wherein, in case of receiving the MAC CE, the activated candidate PUCCH resource is applied after a slot offset from a slot in which the MAC CE is received, and Wherein the slot offset is a predefined value or is configured via higher layer signaling.
  10. 10. The terminal of claim 7, wherein the information related to the plurality of candidate PUCCH resources includes information related to a starting Resource Block (RB) index of the plurality of candidate PUCCH resources in a frequency domain and information related to the number of the plurality of candidate PUCCH resources, Wherein the information related to the starting RB index and the information related to the number of the plurality of candidate PUCCH resources are received via higher layer signaling, the DCI further includes an indicator of whether the bit field is included in the DCI, and Wherein the rate matching is not performed in a case where the bit field is set to all "1" or to all "0".
  11. 11. The terminal of claim 7, wherein in case that one of symbols included in a first half slot of a slot to which the rate matching RE is applied corresponds to the PUSCH and symbols included in the first half slot for the slot of the PUSCH is configured with a demodulation reference signal DM-RS for the PUSCH: REs corresponding to all symbols of the slot of the PUSCH are rate matched in RBs corresponding to the candidate PUCCH resources, or The DM-RS is transmitted in one of symbols included in a latter half slot of the PUSCH.
  12. 12. The terminal of claim 7, wherein in the case where a first symbol of symbols included in a first half slot of a slot for the PUSCH and a second symbol of symbols included in a second half slot of the slot for the PUSCH are configured with DM-RS for the PUSCH: In the case where the RE to which the rate matching is applied corresponds to a symbol included in the first half slot, the DM-RS configured for the first symbol is not transmitted and the DM-RS configured for the second symbol is transmitted, and When the RE to which the rate matching is applied corresponds to a symbol included in the latter half slot, the DM-RS configured for the first symbol is transmitted and the DM-RS configured for the second symbol is not transmitted.
  13. 13. A method performed by a base station in a communication system, the method comprising: Transmitting information related to a plurality of candidate physical uplink control channel, PUCCH, resources in a first radio access technology, RAT, via higher layer signaling; Transmitting downlink control information, DCI, for scheduling a physical uplink shared channel, PUSCH, in a second RAT, wherein the DCI includes a bit field indicating a candidate PUCCH resource included in the plurality of candidate PUCCH resources, and The PUSCH is received and the data of the PUSCH is received, Wherein rate matching is applied to REs overlapping the candidate PUCCH resource among the resource elements REs included in the PUSCH.
  14. 14. The method of claim 13, wherein, in case of transmitting a medium access control MAC control element CE indicating an activated candidate PUCCH resource of the plurality of candidate PUCCH resources, the bit field is a first bitmap indicating the candidate PUCCH resources included in the activated candidate PUCCH resource, a size of the first bitmap is equal to the number of activated candidate PUCCH resources, and Wherein, in a case where the MAC CE is not transmitted, the bit field is a second bitmap indicating the candidate PUCCH resources included in the plurality of candidate PUCCH resources, the size of the second bitmap being equal to the number of the plurality of candidate PUCCH resources.
  15. 15. A base station in a communication system, the base station comprising: Transceiver, and A processor connected to the transceiver, the processor configured to: Transmitting information related to a plurality of candidate physical uplink control channel, PUCCH, resources in a first radio access technology, RAT, via higher layer signaling; Transmitting downlink control information, DCI, for scheduling a physical uplink shared channel, PUSCH, in a second RAT, wherein the DCI includes a bit field indicating a candidate PUCCH resource included in the plurality of candidate PUCCH resources, and The PUSCH is received and the data of the PUSCH is received, Wherein rate matching is applied to REs overlapping the candidate PUCCH resource among the resource elements REs included in the PUSCH.

Description

Method and apparatus for transmitting and receiving signal in communication system Technical Field The present disclosure relates generally to wireless communication systems, and more particularly, to a method for transmitting and receiving signals in a communication system and an apparatus supporting the same. Background Reviewing the continuing generations of wireless communications, technologies were developed primarily for people-centric services such as voice, multimedia, and data. With the commercialization of the fifth generation (5G) communication system, it is expected that an explosively growing connection device will be connected to the system. Examples of network connection objects include vehicles, robots, unmanned aerial vehicles, home appliances, displays, smart sensors installed in various infrastructures, engineering machinery, and factory equipment. Furthermore, mobile devices are expected to evolve into a variety of modalities, including augmented reality glasses, virtual reality headphones, and holographic devices. In order to connect billions of devices and objects and provide diversified services in the 6G age, the industry is continually striving to develop enhanced 6G communication systems. For this reason, 6G communication systems are commonly referred to as "super 5G" systems. It is expected that a 6G communication system implemented around 2030 will have a peak data rate of ethernet (tera) bits per second (i.e., 1000 giga bits per second) and a wireless delay of 100 microseconds (musec). This means that the data rate in a 6G communication system will be 50 times faster and the delay will be reduced to one tenth compared to a 5G communication system. To achieve such high data rates and ultra-low delays, implementation of 6G communication systems in the terahertz (THz) frequency band (e.g., from 95 gigahertz (GHz) to 3 THz) is being considered. The terahertz frequency band is expected to experience more severe path loss and atmospheric absorption than the millimeter wave (mmWave) frequency band introduced in 5G, making it more important to ensure signal arrival (i.e., coverage). To ensure such coverage, key technologies must be developed, including advanced Radio Frequency (RF) components, antennas, new waveforms superior to Orthogonal Frequency Division Multiplexing (OFDM) in terms of coverage, beamforming, and multi-antenna transmission technologies such as massive multiple-input multiple-output (MIMO), full-dimensional MIMO (FD-MIMO), array antennas, and massive antennas must be developed. In addition, in order to improve coverage of terahertz band signals, new technologies such as metamaterial-based lenses and antennas, high-dimensional spatial multiplexing technology using Orbital Angular Momentum (OAM), and Reconfigurable Intelligent Surfaces (RIS) are being discussed. In addition, in order to increase spectrum efficiency and improve system networks, several technologies are being developed for 6G communication systems, full duplex technology allowing uplink and downlink to simultaneously utilize the same frequency resources at the same time, integrated network technology combining satellites and High Altitude Platforms (HAPS), network structure innovation technology supporting mobile base stations and implementing optimization and automation of network operation, dynamic spectrum sharing technology through collision avoidance based on spectrum usage prediction, AI-based communication technology utilizing Artificial Intelligence (AI) from a design stage and internalizing an AI support function from end to end, and next generation distributed computing technology implementing services with complexity exceeding a terminal computing capability limit by utilizing ultra-high performance communication and computing resources (mobile edge computing (MEC), cloud, etc.). Further, attempts to strengthen connections between devices, optimize networks, promote the software of network entities, and improve the openness of wireless communications continue by designing new protocols to be used in 6G communication systems, developing mechanisms for achieving secure use of hardware-based secure environments and data, and developing techniques for maintaining privacy. Such research and development of 6G communication systems is expected to enable a new level of super-connection experience (next generation super-connection experience) through super-connection of 6G communication systems, including not only connection between things but also connection between people and things. In particular, 6G communication systems are expected to enable services such as true immersive augmented reality (XR), high fidelity mobile holograms, and digital twins. In addition, services such as tele-surgery, industrial automation, and emergency response provided through the enhanced security and reliability 6G communication system will be applied to various fields such as industry, medical, automobile, and home appl