WO2022022378A1 - Procédé et appareil d'envoi ou de réception d'un canal physique partagé de liaison montante - Google Patents

Procédé et appareil d'envoi ou de réception d'un canal physique partagé de liaison montante Download PDF

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Publication number
WO2022022378A1
WO2022022378A1 PCT/CN2021/107884 CN2021107884W WO2022022378A1 WO 2022022378 A1 WO2022022378 A1 WO 2022022378A1 CN 2021107884 W CN2021107884 W CN 2021107884W WO 2022022378 A1 WO2022022378 A1 WO 2022022378A1
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Prior art keywords
pusch
time unit
time
srs
domain resources
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PCT/CN2021/107884
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English (en)
Chinese (zh)
Inventor
刘云
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华为技术有限公司
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Publication of WO2022022378A1 publication Critical patent/WO2022022378A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0446—Resources in time domain, e.g. slots or frames
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA

Definitions

  • the present application relates to the field of communications, and in particular to a method and apparatus for sending or receiving a physical uplink shared channel (PUSCH).
  • PUSCH physical uplink shared channel
  • the data sent by the network device to the terminal device is called downlink data
  • the data sent by the terminal device to the network device is called uplink data. Due to cost and volume reasons, the signal transmission capability of terminal equipment is usually weaker than that of network equipment, so that the coverage of uplink signals is usually smaller than that of downlink signals. (eg PUSCH) transmission reliability is reduced.
  • PUSCH PUSCH
  • the present application provides a method and apparatus for transmitting or receiving PUSCH, which can provide a solution for transmitting PUSCH on coincident time domain resources.
  • a first aspect provides a method for sending a PUSCH, comprising: receiving first indication information, where the first indication information is used to indicate a first transmission resource, and the first transmission resource is used to transmit a physical uplink control channel (physical uplink control channel). uplink control channel, PUCCH) or sounding reference signal (sounding reference signal, SRS); receive second indication information, the second indication information is used to indicate the second transmission resource, and the second transmission resource is used to transmit PUSCH; when When the first transmission resource and the second transmission resource have overlapping time domain resources, the PUSCH is sent according to a preset rule.
  • PUCCH physical uplink control channel
  • SRS sounding reference signal
  • the above-mentioned method is performed by, for example, a terminal device.
  • the terminal device and the network device determine the transmission mode on the overlapping time-domain resources based on a set of preset rules, which can avoid signal collisions that lead to overlapping time-domain resources. PUSCH transmission failed.
  • the preset rule includes: sending the PUSCH on the coincident time domain resource, and not sending the PUCCH or the SRS on the coincident time domain resource.
  • the PUSCH is sent on the coincident time domain resources and the sending of the PUCCH or SRS is abandoned, so that the PUSCH can occupy more time domain resources.
  • the network device can aggregate and decode the PUSCH in multiple time domain resources to improve the decoding success rate. When the terminal device is far away from the network device, the PUSCH transmission can also be successfully completed, thereby improving the uplink coverage.
  • the first transmission resource is used to transmit the SRS
  • the coincident time domain resource includes a first time unit and a second time unit
  • the frequency domain resource corresponding to the first time unit is the same as that of the PUSCH.
  • the frequency domain resources are different
  • the frequency domain resources corresponding to the second time unit are the same as the frequency domain resources of the PUSCH
  • the preset rule includes: the SRS is not sent in the first time unit, and the SRS is not sent in the first time unit.
  • the SRS is sent in the second time unit; and the PUSCH is sent in the first time unit, and the PUSCH is not sent in the second time unit.
  • the frequency domain resources corresponding to the second time unit are the same as the PUSCH frequency domain resources. Sending the SRS in the second time unit enables the network device to use the SRS to measure the quality of the PUSCH frequency domain resources, which is beneficial for the network device to allocate high-quality resources for the PUSCH. Frequency domain resources, when the terminal device is far away from the network device, the PUSCH transmission can be successfully completed, thereby improving the uplink coverage.
  • the first transmission resource is used to transmit the SRS
  • the coincident time domain resource includes a first time unit and a second time unit
  • the frequency domain resource corresponding to the first time unit is the same as that of the PUSCH.
  • the frequency domain resources are different
  • the frequency domain resources corresponding to the second time unit are the same as the frequency domain resources of the PUSCH
  • the preset rule includes: sending the SRS in the first time unit, and sending the SRS in the first time unit.
  • the SRS is not sent in two time units; and the PUSCH is not sent in the first time unit, and the PUSCH is sent in the second time unit.
  • the preset rule includes: sending the PUCCH or the SRS on the coincident time domain resource, and not sending the PUSCH on the coincident time domain resource.
  • the network device may receive the wrong PUSCH, and the network device combines and decodes the wrong PUSCH with the correct PUSCH received on the non-overlapping time domain resources, It will reduce the decoding success rate of the overall PUSCH. Therefore, in this embodiment, by giving up the transmission of the PUSCH on the coincident time domain resources, the network device does not need to combine and decode the wrong PUSCH and the correct PUSCH, thereby improving the overall PUSCH decoding success rate.
  • the first transmission resource includes a first time unit
  • the second transmission resource includes a third time unit
  • the first time unit belongs to the coincident time domain resource
  • the third time unit does not belong to
  • the position of the first time unit in the first time slot is the same as the position of the third time unit in the second time slot
  • the first time slot is the same as the second time slot. gaps are adjacent.
  • the coincident time domain resource is used for transmitting the PUCCH, and a demodulation reference signal (demodulation reference signal, DMRS) of the PUCCH is used for demodulating the PUCCH and the PUSCH.
  • DMRS demodulation reference signal
  • the DMRS of PUCCH can also be used to demodulate PUSCH. Therefore, this embodiment can improve the decoding success rate of PUSCH, and can also successfully complete PUSCH transmission when the terminal device is far away from the network device. Thus, the uplink coverage is improved.
  • a method for receiving a PUSCH including: sending first indication information, where the first indication information is used to indicate a first transmission resource, and the first transmission resource is used to transmit PUCCH or SRS; Two indication information, the second indication information is used to indicate the second transmission resource, and the second transmission resource is used to transmit the PUSCH; when the first transmission resource and the second transmission resource have overlapping time domain resources, The PUSCH is received according to preset rules.
  • the above-described method is performed, for example, by a network device.
  • the terminal device and the network device determine the transmission mode on the overlapping time-domain resources based on a set of preset rules, which can avoid signal collisions that lead to overlapping time-domain resources. PUSCH reception failed.
  • the preset rule includes: receiving the PUSCH on the coincident time domain resource, and not receiving the PUCCH or the SRS on the coincident time domain resource.
  • the PUSCH is received on the coincident time domain resources and the reception of the PUCCH or SRS is abandoned, so that the PUSCH can occupy more time domain resources.
  • the network device can aggregate and decode the PUSCH in multiple time domain resources to improve the decoding success rate.
  • the PUSCH transmission can also be successfully completed, thereby improving the uplink coverage.
  • the first transmission resource is used to transmit the SRS
  • the coincident time domain resource includes a first time unit and a second time unit
  • the frequency domain resource corresponding to the first time unit is the same as that of the PUSCH.
  • the frequency domain resources are different
  • the frequency domain resources corresponding to the second time unit are the same as the frequency domain resources of the PUSCH
  • the preset rule includes: the SRS is not received in the first time unit, and the SRS is not received in the first time unit.
  • the SRS is received in a second time unit, and the PUSCH is received in the first time unit, and the PUSCH is not received in the second time unit.
  • the frequency domain resources corresponding to the second time unit are the same as the PUSCH frequency domain resources. Receiving the SRS in the second time unit enables the network device to use the SRS to measure the quality of the PUSCH frequency domain resources, which is beneficial for the network device to allocate high-quality resources for the PUSCH. Frequency domain resources, when the terminal device is far away from the network device, the PUSCH transmission can be successfully completed, thereby improving the uplink coverage.
  • the first transmission resource is used to transmit the SRS
  • the coincident time domain resource includes a first time unit and a second time unit
  • the frequency domain resource corresponding to the first time unit is the same as that of the PUSCH.
  • the frequency domain resources are different
  • the frequency domain resources corresponding to the second time unit are the same as the frequency domain resources of the PUSCH
  • the preset rule includes: receiving the SRS in the first time unit, and receiving the SRS in the first time unit.
  • the SRS is not received in two time units, and the PUSCH is not received in the first time unit, and the PUSCH is received in the second time unit.
  • the frequency domain resource corresponding to the first time unit is different from the frequency domain resource of the PUSCH, and receiving the SRS in the first time unit enables the network device to use the SRS to measure the quality of the frequency domain resource corresponding to the first time unit. If the quality of the frequency domain resources corresponding to the first time unit is higher than the quality of the frequency domain resources of the PUSCH, the network device can allocate the frequency domain resources corresponding to the first time unit to the PUSCH in the subsequent PUSCH transmission process, thereby improving the uplink coverage Scope.
  • the preset rule includes: receiving the PUCCH or the SRS on the coincident time domain resource, and not receiving the PUSCH on the coincident time domain resource.
  • the network device may receive the wrong PUSCH, and the network device combines and decodes the wrong PUSCH with the correct PUSCH received on the non-overlapping time domain resources, It will reduce the decoding success rate of the overall PUSCH. Therefore, in this embodiment, by giving up receiving the PUSCH on the coincident time domain resources, the network device does not need to combine and decode the wrong PUSCH and the correct PUSCH, and the PUSCH transmission can be successfully completed even when the terminal device is far away from the network device. The decoding success rate of the overall PUSCH is improved.
  • the first transmission resource includes a first time unit
  • the second transmission resource includes a third time unit
  • the first time unit belongs to the coincident time domain resource
  • the third time unit does not belong to
  • the position of the first time unit in the first time slot is the same as the position of the third time unit in the second time slot
  • the first time slot is the same as the second time slot. gaps are adjacent.
  • the PUSCH In order to improve the success rate of combined decoding, the PUSCH usually needs to occupy the same time unit in the time domain in multiple consecutive time slots.
  • the time unit with the same time domain position is, for example, the first time unit and the second time unit in the first time slot. the third time unit within the slot.
  • the first time unit When the first time unit is allocated to PUCCH and PUSCH, the first time unit needs to transmit PUCCH preferentially, so PUSCH cannot occupy the time unit with the same time domain position in multiple consecutive time slots.
  • the terminal device will give up in the first time unit.
  • the PUSCH is transmitted in two time units. In this embodiment, the terminal device transmits the PUSCH in the second time unit, and the network device receives the PUSCH in the second time unit.
  • the PUSCH can be allocated more time domain resources, which improves the decoding success rate.
  • the PUSCH transmission can be successfully completed, thereby improving the uplink coverage.
  • the coincident time domain resource is used to transmit the PUCCH, and the DMRS of the PUCCH is used to demodulate the PUCCH and the PUSCH.
  • the DMRS of PUCCH can also be used to demodulate PUSCH. Therefore, this embodiment can improve the decoding success rate of PUSCH, and can also successfully complete PUSCH transmission when the terminal device is far away from the network device. Thus, the uplink coverage is improved.
  • an apparatus for sending a PUSCH comprising means for performing any one of the methods in the first aspect.
  • a fifth aspect provides a device for sending PUSCH, comprising a processor and a memory, the memory is used to store a computer program, the processor is used to call and run the computer program from the memory, so that the device performs any one of the first aspect. a way.
  • a device for receiving PUSCH comprising a processor and a memory, the memory is used for storing a computer program, and the processor is used for calling and running the computer program from the memory, so that the device performs any one of the second aspect. a way.
  • a computer-readable medium stores program code, the program code comprising instructions for performing any one of the methods in the first aspect.
  • a computer-readable medium stores program code, the program code comprising instructions for performing any one of the methods in the second aspect.
  • a computer program product comprising: computer program code, when the computer program code is executed by an apparatus for sending PUSCH, the apparatus causes the apparatus to perform any one of the methods in the first aspect.
  • a computer program product comprising: computer program code, when the computer program code is executed by a device receiving a PUSCH, the device causes the device to perform any one of the methods in the second aspect.
  • FIG. 1 is a schematic diagram of a communication system provided by the present application.
  • FIG. 2 is a schematic diagram of a time domain resource configuration of a PUSCH provided by the present application
  • 3 is a schematic diagram of the time domain resource configuration of a kind of SRS and PUCCH provided by the present application;
  • FIG. 4 is a schematic diagram of a method for sending or receiving PUSCH provided by the present application.
  • FIG. 5 is a schematic diagram of another method for sending or receiving PUSCH provided by the present application.
  • FIG. 6 is a schematic diagram of yet another method for sending or receiving PUSCH provided by the present application.
  • FIG. 7 is a schematic diagram of yet another method for sending or receiving PUSCH provided by the present application.
  • FIG. 8 is a schematic diagram of yet another method for sending or receiving PUSCH provided by the present application.
  • FIG. 9 is a schematic diagram of a device for sending PUSCH provided by the present application.
  • FIG. 10 is a schematic diagram of a device for receiving PUSCH provided by the present application.
  • FIG. 11 is a schematic diagram of an electronic device provided by the present application.
  • FIG. 1 is a schematic diagram of a communication system applicable to the present application.
  • the communication system 100 includes a network device 110 and a terminal device 120 .
  • the terminal device 120 communicates with the network device 110 through electromagnetic waves.
  • the terminal device 120 may include various handheld devices, vehicle-mounted devices or wearable devices with wireless communication functions, for example, user equipment (user equipment) defined by the 3rd Generation Partnership Project (3GPP). equipment, UE), mobile station (mobile station, MS) and so on.
  • user equipment user equipment
  • 3GPP 3rd Generation Partnership Project
  • UE mobile station
  • MS mobile station
  • the network device 110 may be a base station as defined by 3GPP, eg, a base station (gNB) in the fifth generation (5G) communication system.
  • the network device 110 may also be a relay station, an access point, an in-vehicle device, a wearable device, and other types of communication devices.
  • the communication system 100 is for illustration only, and the communication system to which the present application is applied is not limited thereto.
  • the 5G communication system introduces the time slot aggregation transmission mode in the uplink transmission, that is, in multiple consecutive uplink time slots, the uplink at the same position is used to transmit different redundant versions of the same transmission block, and the network device 110 can combine the received data. Multiple redundant versions achieve more efficient decoding results.
  • a PUSCH is respectively configured in the same symbol position of time slot n+2 and time slot n+3, and each PUSCH carries a different redundancy version of a transport block, so that the reliability of PUSCH can be improved.
  • the uplink symbols on which the PUSCH is configured may also be configured on other uplink channels, resulting in collisions in uplink transmissions.
  • FIG. 3 shows a schematic diagram of time domain resource configuration of SRS and PUCCH.
  • the SRS is an uplink signal, which is sent by the terminal device 120 and used by the network device 110 to perform uplink channel measurement. After determining the uplink channel quality according to the SRS, the network device 110 adjusts parameters such as codebook and code rate used by the terminal device 120 according to the uplink channel quality, so as to improve transmission efficiency. For example, in the case of high uplink channel quality, the terminal device 120 can use a higher code rate to transmit PUSCH, so that more content can be transmitted; in the case of poor uplink channel quality, the terminal device 120 can use a lower PUSCH is transmitted at the code rate to improve transmission reliability.
  • the SRS is located a few symbols at the end of the slot.
  • the SRS shown in FIG. 3 is located in the last symbol of time slot n+3, which coincides with part of the time domain resources of the PUSCH.
  • PUCCH is an uplink control channel used to carry uplink control signaling.
  • the PUCCH shown in FIG. 3 is located in the last two symbols of the time slot n+2, which coincides with part of the time domain resources of the PUSCH.
  • the method for sending or receiving the PUSCH provided in this application is described in detail below, taking the terminal device 120 as a UE and the network device 110 as a base station as an example. As shown in Figure 4, the method includes:
  • the UE receives first indication information, where the first indication information is used to indicate a first transmission resource, and the first transmission resource is used to transmit a PUCCH or an SRS.
  • S420 The UE receives second indication information, where the second indication information is used to indicate a second transmission resource, and the second transmission resource is used to transmit the PUSCH.
  • the base station sends the first indication information and the second indication information to the UE.
  • the first indication information may be a media access control (media access control, MAC) control element (control element, CE), may also be downlink control information (downlink control information, DCI), or may be a radio resource control (radio resource control) , RRC) message.
  • media access control media access control
  • CE control element
  • DCI downlink control information
  • RRC radio resource control
  • the base station may directly indicate the time-frequency resource location of the first transmission resource through the first indication information, that is, the first indication information includes time-frequency resource location information of the first transmission resource
  • the base station can also trigger the UE to transmit the PUCCH or SRS on the first transmission resource through the first indication information, that is, the first indication information does not include the time-frequency resource location information of the first transmission resource; when the first indication information is an RRC message , the base station can configure the UE to periodically transmit the PUCCH or SRS.
  • the second indication information may be a MAC CE, DCI or RRC message, and the second transmission resource may be directly indicated by the second indication information or indirectly indicated by the second indication information (that is, the second indication information triggers the UE
  • the PUSCH is transmitted on the second transmission resource), which may also be configured by the second indication information.
  • the first indication information and the second indication information may be carried in one message, or may be carried in different messages respectively.
  • the base station may send the first indication information first and then send the second indication information, or may send the second indication information first and then send the first indication information, or The first indication information and the second indication information are sent at the same time.
  • the present application does not limit the specific forms of the first indication information and the second indication information and the manner of sending and receiving.
  • the first transmission resource may include one or more time units and one or more frequency domain units; the second transmission resource may include one or more time units and one or more frequency domain units.
  • the above-mentioned time unit may be a symbol, a time slot, a subframe or a radio frame, and the above-mentioned frequency domain unit may be a subcarrier or a frequency band. This application does not limit the duration of the time unit and the bandwidth of the frequency domain unit.
  • the above-mentioned overlapping time domain resources may be one or more symbols, or may be one or more time slots, and the duration of the overlapping time domain resources is not limited in this application.
  • the terminal device and the network device determine the transmission mode on the overlapping time-domain resources based on a set of preset rules, which can avoid signal collisions that lead to overlapping time-domain resources. PUSCH transmission failed.
  • Preset rule 1 when the first indication information indicates that the first transmission resource is used to transmit PUCCH or SRS, the PUSCH is sent on the coincident time domain resource, and the PUCCH or SRS is not sent on the coincident time domain resource.
  • time slot n and time slot n+1 are downlink time domain resources, and the base station configures some symbols in time slot n+1, time slot n+2 and time slot n+3 for use
  • n is an integer greater than or equal to 0, wherein some symbols in time slot n+1, time slot n+2 and time slot n+3 are used to transmit PUSCH, and the last two in time slot n+2 The symbols are used to transmit SRS or PUCCH.
  • the first transmission resource is the last two symbols in time slot n+2
  • the second transmission resource is part of the symbols in time slot n+1, time slot n+2 and time slot n+3
  • the coincident time domain resources are the last two symbols in slot n+2.
  • the UE may transmit the PUSCH in the last two symbols in the time slot n+2, and not in the last two symbols in the time slot n+2 Transmit PUCCH or SRS.
  • the UE may transmit the PUSCH in the last symbol in slot n+2, and another symbol may be used to transmit other uplink signals or not used to transmit any uplink signals. That is, the UE sending the PUSCH on the overlapping time domain resources includes: the UE sending the PUSCH on all the time domain resources of the overlapping time domain resources, or the UE sending the PUSCH on some time domain resources of the overlapping time domain resources.
  • the UE may use some or all of the non-overlapping transmission resources to transmit the PUSCH. Therefore, sending the PUSCH by the UE according to the preset rule 1 can be described as: the UE sends the PUSCH on part or all of the second transmission resources, where the part or all of the second transmission resources include part or all of the coincident time domain resources.
  • the reception of the PUSCH by the base station according to the preset rule 1 may be described as: the base station receives the PUSCH on part or all of the second transmission resources, and the part or all of the second transmission resources include part or all of the coincident time domain resources .
  • the UE transmits the PUSCH on the coincident time domain resources and abandons the transmission of the PUCCH or the SRS, so that the PUSCH can occupy more time domain resources.
  • the base station can aggregate and decode the PUSCH in multiple time domain resources to improve the decoding success rate, and when the UE is far away from the base station, the PUSCH transmission can be successfully completed, thereby improving the uplink coverage.
  • Preset rule 2 when the first indication information indicates that the first transmission resource is used to transmit the SRS, the SRS is not sent in the first time unit, and the SRS is sent in the second time unit; and, at the first time The PUSCH is sent in the unit, and the PUSCH is not sent in the second time unit; wherein, the first transmission resource is used to transmit the SRS, and the coincident time domain resources include the first time unit and the second time unit, and the first transmission resource is used to transmit the SRS.
  • the frequency domain resources corresponding to one time unit are different from the frequency domain resources of the PUSCH, and the frequency domain resources corresponding to the second time unit are the same as the frequency domain resources of the PUSCH.
  • the first time unit may be located before or after the second time unit; the first time unit and the second time unit may respectively include N symbols, where N is a positive integer greater than or equal to 1.
  • time slot n and time slot n+1 are downlink time domain resources, and the base station configures some symbols in time slot n+1, time slot n+2 and time slot n+3 for use
  • n is an integer greater than or equal to 0, wherein some symbols in time slot n+1, time slot n+2 and time slot n+3 are used to transmit PUSCH, and the last two in time slot n+2 The symbols are used to transmit SRS or PUCCH.
  • the UE may transmit the PUSCH in the first time unit and not transmit the SRS in the first time unit, and may also transmit the SRS in the second time unit and not in the first time unit.
  • the PUSCH is transmitted within two time units; optionally, the symbols not used for transmitting the PUSCH may be more than one symbol.
  • the UE sending the PUSCH in the first time unit includes: the UE sending the PUSCH on all the time domain resources of the first time unit, or the UE sending the PUSCH on part of the time domain resources of the first time unit.
  • the UE may transmit the PUSCH using some or all of the resources in the non-overlapping transmission resources. Therefore, sending the PUSCH by the UE according to the preset rule 2 can be described as: the UE sends the PUSCH on part or all of the second transmission resources, where the part or all of the second transmission resources include part or all of the first time unit.
  • the UE sending the SRS according to the preset rule 2 may be described as: the UE sends the SRS on part or all of the first transmission resources, and the part or all of the first transmission resources includes part or all of the second time unit.
  • the transmit power of SRS may be the same as the transmit power of some symbols of PUSCH, for example, the transmit power of SRS is the same as the power on the time-frequency resource corresponding to the DMRS of PUSCH; or, the transmit power of SRS and PUSCH The total power is the same on each symbol of .
  • the frequency domain resources corresponding to the second time unit are the same as the frequency domain resources of the PUSCH, and sending the SRS in the second time unit enables the base station to use the SRS to measure the quality of the frequency domain resources of the PUSCH, which is beneficial for the base station to allocate the PUSCH High-quality frequency domain resources can successfully complete PUSCH transmission even when the UE is far away from the base station, thereby improving the uplink coverage.
  • Preset rule 3 when the first indication information indicates that the first transmission resource is used to transmit the SRS, the SRS is sent in the first time unit, and the SRS is not sent in the second time unit; and, at the first time The PUSCH is not sent in the unit, and the PUSCH is sent in the second time unit; wherein, the first transmission resource is used to transmit the SRS, and the coincident time domain resource includes a first time unit and a second time unit , the frequency domain resources corresponding to the first time unit are different from the frequency domain resources of the PUSCH, and the frequency domain resources corresponding to the second time unit are the same as the frequency domain resources of the PUSCH.
  • the first time unit may be located before or after the second time unit; the first time unit and the second time unit may respectively include N symbols, where N is a positive integer greater than or equal to 1.
  • time slot n and time slot n+1 are downlink time domain resources, and the base station configures some symbols in time slot n+1, time slot n+2 and time slot n+3 for use
  • n is an integer greater than or equal to 0, wherein some symbols in time slot n+1, time slot n+2 and time slot n+3 are used to transmit PUSCH, and the last two in time slot n+2 The symbols are used to transmit SRS or PUCCH.
  • the UE may transmit the SRS in the first time unit and not transmit the PUSCH in the first time unit, and may also transmit the PUSCH in the second time unit and not in the first time unit.
  • the SRS is transmitted within two time units; optionally, the symbols that are not used for transmitting the PUSCH may be more than one symbol.
  • the UE sending the PUSCH in the second time unit includes: the UE sending the PUSCH on all time domain resources of the second time unit, or the UE sending the PUSCH on part of the time domain resources of the second time unit.
  • the UE may transmit the PUSCH using some or all of the resources in the non-overlapping transmission resources. Therefore, sending the PUSCH by the UE according to the preset rule 3 may be described as: the UE sends the PUSCH on part or all of the second transmission resources, where the part or all of the second transmission resources include part or all of the second time unit. Sending the SRS by the UE according to the preset rule 2 may be described as: the UE sends the SRS on part or all of the first transmission resources, where the part or all of the first transmission resources include part or all of the first time unit.
  • the reception of the PUSCH by the base station according to the preset rule 3 may be described as: the base station receives the PUSCH on part or all of the second transmission resources, and the part or all of the second transmission resources includes part or all of the second time unit .
  • Receiving the SRS by the base station according to the preset rule 2 may be described as: the base station receives the SRS on part or all of the first transmission resources, where the part or all of the first transmission resources include part or all of the first time unit.
  • the frequency domain resources corresponding to the first time unit are different from the frequency domain resources of the PUSCH, and sending the SRS in the first time unit enables the network device to use the SRS to measure the quality of the frequency domain resources corresponding to the first time unit. If the quality of the frequency domain resources corresponding to the first time unit is higher than the quality of the frequency domain resources of the PUSCH, the network device can allocate the frequency domain resources corresponding to the first time unit to the PUSCH in the subsequent PUSCH transmission process, thereby improving the uplink coverage Scope.
  • Preset rule 4 when the first indication information indicates that the first transmission resource is used to transmit PUCCH or SRS, the PUCCH or SRS is sent on the overlapping time domain resource, and the PUSCH is not sent on the overlapping time domain resource.
  • time slot n and time slot n+1 are downlink time domain resources, and the base station configures some symbols in time slot n+1, time slot n+2 and time slot n+3 for use
  • n is an integer greater than or equal to 0, wherein some uplink time domain resources are used to transmit PUSCH, and the last two symbols in time slot n+2 are used to transmit SRS or PUCCH.
  • the UE may transmit the PUCCH or SRS in the last two symbols in the time slot n+2, and not in the last two symbols in the time slot n+2 PUSCH is transmitted within a symbol; optionally, symbols not used to transmit PUSCH may be more than two symbols.
  • the UE may transmit the PUSCH using some or all of the resources in the non-overlapping transmission resources. Therefore, sending the PUSCH by the UE according to the preset rule 4 may be described as: the UE sends the PUSCH on some or all of the second transmission resources, and some or all of the second transmission resources do not include coincident time domain resources.
  • receiving the PUSCH by the base station according to the preset rule 4 can be described as: the base station receives the PUSCH on part or all of the second transmission resources, and part or all of the second transmission resources do not include coincident time domain resources.
  • the network device may receive the wrong PUSCH, and the network device compares the wrong PUSCH with the correct one received on the non-coincident time domain resources.
  • the decoding success rate of the overall PUSCH will be reduced. Therefore, in this embodiment, by giving up the transmission of the PUSCH on the coincident time domain resources, the network device does not need to combine and decode the wrong PUSCH and the correct PUSCH, thereby improving the overall PUSCH decoding success rate.
  • the PUSCH in order to improve the success rate of combined decoding, the PUSCH usually needs to occupy the same time unit in the time domain in multiple consecutive time slots, and the time unit with the same time domain position is, for example, the first time unit.
  • the first time unit needs to transmit PUCCH preferentially, so PUSCH cannot occupy the time unit with the same time domain position in multiple consecutive time slots.
  • the terminal device will give up in the first time unit.
  • the PUSCH is transmitted in two time units. In this embodiment, the terminal device transmits the PUSCH in the second time unit.
  • the PUSCH can be allocated more time domain resources, so that the decoding success rate is improved, thereby improving the uplink coverage.
  • the DMRS of the PUCCH can be used to demodulate the PUSCH in addition to the PUCCH. Therefore, this embodiment can improve the decoding success rate of the PUSCH, thereby improving the Uplink coverage.
  • the apparatus for sending or receiving the PUSCH includes corresponding hardware structures and/or software modules for performing each function.
  • the present application can be implemented in hardware or a combination of hardware and computer software with the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein. Whether a function is performed by hardware or computer software driving hardware depends on the specific application and design constraints of the technical solution. Skilled artisans may implement the described functionality using different methods for each particular application, but such implementations should not be considered beyond the scope of this application.
  • the present application can divide the functional units of the apparatus for sending or receiving PUSCH according to the above method examples.
  • each function can be divided into each functional unit, or two or more functions can be integrated into one processing unit.
  • the above-mentioned integrated units may be implemented in the form of hardware, or may be implemented in the form of software functional units. It should be noted that the division of units in this application is schematic, and is only a logical function division, and other division methods may be used in actual implementation.
  • FIG. 9 shows a schematic structural diagram of an apparatus for sending a PUSCH provided by the present application.
  • the apparatus 900 includes a processing unit 910 , a sending unit 920 and a receiving unit 930 , wherein the sending unit 920 can perform a sending operation under the control of the processing unit 910 , and the receiving unit 930 can perform a receiving operation under the control of the processing unit 910 .
  • the receiving unit 930 is configured to: receive first indication information, where the first indication information is used to indicate a first transmission resource, and the first transmission resource is used for transmitting PUCCH or SRS; receive second indication information, the second indication The information is used to indicate the second transmission resource, and the second transmission resource is used to transmit the PUSCH;
  • the sending unit 920 is configured to: when the first transmission resource and the second transmission resource have overlapping time domain resources, send the PUSCH according to a preset rule.
  • the preset rule includes: sending the PUSCH on the coincident time domain resource, and not sending the PUCCH or the SRS on the coincident time domain resource.
  • the first transmission resource is used to transmit the SRS
  • the coincident time domain resource includes a first time unit and a second time unit
  • the frequency domain resource corresponding to the first time unit is the same as that of the PUSCH.
  • the frequency domain resources are different
  • the frequency domain resources corresponding to the second time unit are the same as the frequency domain resources of the PUSCH
  • the preset rule includes: the SRS is not sent in the first time unit, and the SRS is not sent in the first time unit.
  • the SRS is sent in the second time unit; and the PUSCH is sent in the first time unit, and the PUSCH is not sent in the second time unit.
  • the first transmission resource is used to transmit the SRS
  • the coincident time domain resource includes a first time unit and a second time unit
  • the frequency domain resource corresponding to the first time unit is the same as that of the PUSCH.
  • the frequency domain resources are different
  • the frequency domain resources corresponding to the second time unit are the same as the frequency domain resources of the PUSCH
  • the preset rule includes: sending the SRS in the first time unit, and sending the SRS in the first time unit.
  • the SRS is not sent in two time units; and the PUSCH is not sent in the first time unit, and the PUSCH is sent in the second time unit.
  • the preset rule includes: sending the PUCCH or the SRS on the coincident time domain resource, and not sending the PUSCH on the coincident time domain resource.
  • the first transmission resource includes a first time unit
  • the second transmission resource includes a third time unit
  • the first time unit belongs to the coincident time domain resource
  • the third time unit does not belong to
  • the position of the first time unit in the first time slot is the same as the position of the third time unit in the second time slot
  • the first time slot is the same as the second time slot. gaps are adjacent.
  • the coincident time domain resource is used to transmit the PUCCH, and the DMRS of the PUCCH is used to demodulate the PUCCH and the PUSCH.
  • FIG. 10 shows a schematic structural diagram of an apparatus for receiving a PUSCH provided by the present application.
  • the apparatus 1000 includes a processing unit 1010 , a sending unit 1020 and a receiving unit 1030 , wherein the sending unit 1020 can perform a sending operation under the control of the processing unit 1010 , and the receiving unit 1030 can perform a receiving operation under the control of the processing unit 1010 .
  • the sending unit 1020 is configured to: send first indication information, where the first indication information is used to indicate a first transmission resource, and the first transmission resource is used for transmitting PUCCH or SRS; and send second indication information, the second indication The information is used to indicate the second transmission resource, which is used to transmit the PUSCH.
  • the receiving unit 1030 is configured to receive the PUSCH according to a preset rule when the first transmission resource and the second transmission resource have overlapping time domain resources.
  • the preset rule includes: receiving the PUSCH on the coincident time domain resource, and not receiving the PUCCH or the SRS on the coincident time domain resource.
  • the first transmission resource is used to transmit the SRS
  • the coincident time domain resource includes a first time unit and a second time unit
  • the frequency domain resource corresponding to the first time unit is the same as that of the PUSCH.
  • the frequency domain resources are different
  • the frequency domain resources corresponding to the second time unit are the same as the frequency domain resources of the PUSCH
  • the preset rule includes: the SRS is not received in the first time unit, and the SRS is not received in the first time unit.
  • the SRS is received in a second time unit; and the PUSCH is received in the first time unit, and the PUSCH is not received in the second time unit.
  • the first transmission resource is used to transmit the SRS
  • the coincident time domain resource includes a first time unit and a second time unit
  • the frequency domain resource corresponding to the first time unit is the same as that of the PUSCH.
  • the frequency domain resources are different
  • the frequency domain resources corresponding to the second time unit are the same as the frequency domain resources of the PUSCH
  • the preset rule includes: receiving the SRS in the first time unit, and receiving the SRS in the first time unit.
  • the SRS is not received in two time units; and the PUSCH is not received in the first time unit, and the PUSCH is received in the second time unit.
  • the preset rule includes: receiving the PUCCH or the SRS on the coincident time domain resource, and not receiving the PUSCH on the coincident time domain resource.
  • the first transmission resource includes a first time unit
  • the second transmission resource includes a third time unit
  • the first time unit belongs to the coincident time domain resource
  • the third time unit does not belong to
  • the position of the first time unit in the first time slot is the same as the position of the third time unit in the second time slot
  • the first time slot is the same as the second time slot. gaps are adjacent.
  • the coincident time domain resource is used to transmit the PUCCH, and the DMRS of the PUCCH is used to demodulate the PUCCH and the PUSCH.
  • FIG. 11 shows a schematic structural diagram of an electronic device provided by the present application.
  • the electronic device 1100 may be used to implement the methods described in the foregoing method embodiments, and the electronic device 1100 may be a chip, a terminal device, or a network device.
  • the electronic device 1100 includes one or more processors 1101, and the one or more processors 1101 can support the electronic device 1100 to implement the methods in the method embodiments.
  • the processor 1101 may be a general purpose processor or a special purpose processor.
  • the processor 1101 may be a central processing unit (CPU) or a baseband processor.
  • the baseband processor may be used to process communication data (eg, PUSCH), and the CPU may be used to control the electronic device 1100, execute software programs, and process data of the software programs.
  • the electronic device 1100 may further include a transceiver unit 1105 and an antenna 1106 to implement signal input (reception) and output (transmission).
  • the electronic device 1100 may be a chip, and the transceiver unit 1105 may be an input circuit and/or an output circuit of the chip, or the transceiver unit 1105 may be a communication interface of the chip, and the chip may be used as a component of a terminal device or a network device .
  • the electronic device 1100 may include one or more memories 1102 in which a program 1104 is stored, and the program 1104 can be executed by the processor 1101 to generate instructions 1103 , so that the processor 1101 executes the methods described in the above method embodiments according to the instructions 1103 .
  • data may also be stored in the memory 1102 .
  • the processor 1101 may also read data stored in the memory 1102 , the data may be stored at the same storage address as the program 1104 , or the data may be stored at a different storage address from the program 1104 .
  • the processor 1101 and the memory 1102 can be provided separately, or can be integrated together, for example, integrated on a system on chip (system on chip, SOC).
  • SOC system on chip
  • the steps in the above method embodiments may be implemented by logic circuits in the form of hardware or instructions in the form of software in the processor 1101 .
  • the processor 1101 may be a CPU, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic devices , for example, discrete gates, transistor logic devices, or discrete hardware components.
  • DSP digital signal processor
  • ASIC application specific integrated circuit
  • FPGA field programmable gate array
  • the computer program product can be stored in the memory 1102, such as a program 1104, and the program 1104 is finally converted into an executable object file that can be executed by the processor 1101 through processing processes such as preprocessing, compilation, assembly, and linking.
  • the present application also provides a computer-readable storage medium on which a computer program is stored, and when the computer program is executed by a computer, implements the communication method described in any method embodiment in the present application.
  • the computer program can be a high-level language program or an executable object program.
  • the computer-readable storage medium is, for example, the memory 1102 .
  • the memory 1102 may be volatile memory or nonvolatile memory, or the memory 1102 may include both volatile memory and nonvolatile memory.
  • the non-volatile memory may be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically programmable Erase programmable read-only memory (electrically EPROM, EEPROM) or flash memory.
  • Volatile memory may be random access memory (RAM), which acts as an external cache.
  • RAM random access memory
  • SRAM static random access memory
  • DRAM dynamic random access memory
  • SDRAM synchronous DRAM
  • SDRAM double data rate synchronous dynamic random access memory
  • double data rate SDRAM double data rate SDRAM
  • DDR SDRAM enhanced synchronous dynamic random access memory
  • ESDRAM enhanced synchronous dynamic random access memory
  • SCRAM synchronous link dynamic random access memory
  • direct rambus RAM direct rambus RAM
  • the disclosed systems, devices and methods may be implemented in other manners.
  • some features of the method embodiments described above may be omitted, or not implemented.
  • the apparatus embodiments described above are only schematic, and the division of units is only a logical function division. In actual implementation, there may be other division methods, and multiple units or components may be combined or integrated into another system.
  • the coupling between the various units or the coupling between the various components may be direct coupling or indirect coupling, and the above-mentioned coupling includes electrical, mechanical or other forms of connection.
  • system and “network” are often used interchangeably herein.
  • the term “and/or” in this article is only an association relationship to describe the associated objects, indicating that there can be three kinds of relationships, for example, A and/or B, it can mean that A exists alone, A and B exist at the same time, independently There are three cases of B.
  • the character "/" in this document generally indicates that the related objects are an "or” relationship.

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

La présente invention concerne un procédé et un appareil d'envoi ou de réception d'un canal physique partagé de liaison montante (PUSCH). Ledit procédé comprend les étapes consistant à : recevoir des premières informations d'indication, les premières informations d'indication étant utilisées pour indiquer une première ressource de transmission et la première ressource de transmission étant utilisée pour transmettre un PUCCH ou un SRS ; recevoir des secondes informations d'indication, les secondes informations d'indication étant utilisées pour indiquer une seconde ressource de transmission et la seconde ressource de transmission étant utilisée pour transmettre un PUSCH ; et, lorsqu'il existe une ressource de domaine temporel en chevauchement entre la première ressource de transmission et la seconde ressource de transmission, envoyer le PUSCH selon une règle prédéfinie. Lorsqu'il existe une ressource de domaine temporel en chevauchement entre la première ressource de transmission et la seconde ressource de transmission, le dispositif terminal et le dispositif de réseau déterminent un mode de transmission sur la ressource de domaine temporel en chevauchement sur la base d'un ensemble de règles prédéfinies, ce qui permet d'éviter une défaillance de transmission de PUSCH sur la ressource de domaine temporel en chevauchement due à une collision de signaux.
PCT/CN2021/107884 2020-07-28 2021-07-22 Procédé et appareil d'envoi ou de réception d'un canal physique partagé de liaison montante WO2022022378A1 (fr)

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