WO2020259341A1 - 资源确定方法及装置 - Google Patents

资源确定方法及装置 Download PDF

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Publication number
WO2020259341A1
WO2020259341A1 PCT/CN2020/096199 CN2020096199W WO2020259341A1 WO 2020259341 A1 WO2020259341 A1 WO 2020259341A1 CN 2020096199 W CN2020096199 W CN 2020096199W WO 2020259341 A1 WO2020259341 A1 WO 2020259341A1
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WIPO (PCT)
Prior art keywords
reference signal
channel measurement
measurement reference
dmrs
occupied
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PCT/CN2020/096199
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English (en)
French (fr)
Inventor
刘显达
刘鹍鹏
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华为技术有限公司
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Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to EP20833510.9A priority Critical patent/EP3975461A4/en
Publication of WO2020259341A1 publication Critical patent/WO2020259341A1/zh
Priority to US17/560,681 priority patent/US20220116180A1/en

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    • 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
    • H04L5/0051—Allocation of pilot signals, i.e. of signals known to the receiver of dedicated pilots, i.e. pilots destined for a single user or 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
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0003—Two-dimensional division
    • H04L5/0005—Time-frequency
    • H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT
    • 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
    • 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
    • H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals

Definitions

  • This application relates to the field of communication technology, and in particular to a method and device for determining resources.
  • the communication system In order to obtain higher spectrum utilization, the communication system generally adopts the same frequency networking method. That is, multiple cells in the network can be deployed in the same frequency band. In this way, when the user is at the edge of the serving cell, the user may be subject to co-channel interference from neighboring cells of the serving cell, which severely limits the service quality and throughput of the edge user. Therefore, in order to solve the problem of interference between cells, Coordinated Multi-Point (CoMP) transmission technology is widely used.
  • the assisted multipoint transmission technology specifically refers to that multiple transmission points (transmission reception points, TRP) cooperate to transmit data for one terminal, or multiple TRPs jointly receive data sent by one terminal.
  • CoMP transmission can be divided into ideal backhaul (IB) and non-ideal backhaul (NIB).
  • IB ideal backhaul
  • NIB non-ideal backhaul
  • DCI downlink control information
  • PDSCH physical downlink shared channel
  • DMRS demodulation reference signal
  • multiple TRPs in the coordination set may all be configurations where the LTE base station and the NR base station are co-located.
  • each TRP will configure cell-specific reference signal (CRS) configuration information to indicate the time-frequency resources occupied by the CRS of the TRP.
  • CRS cell-specific reference signal
  • the DMRS corresponding to a PDSCH independently scheduled by a TRP may avoid the orthogonal frequency division multiplexing (OFDM) symbols occupied by the CRS of the TRP in the time domain And migration occurs.
  • OFDM orthogonal frequency division multiplexing
  • the DMRS corresponding to PDSCHs scheduled by different TRPs are not aligned in the time domain. If the PDSCHs scheduled by multiple TRPs overlap in time-frequency resources, the DMRS corresponding to the two PDSCHs are not aligned in the time domain, which will cause interference between the DMRS of one PDSCH and the other PDSCH, which will affect the terminal's DMRS-based channel Estimate performance.
  • the present application provides a resource determination method and device, which are used to ensure that the DMRS corresponding to the PDSCH independently scheduled by multiple TRPs are aligned in the time domain.
  • a resource determination method including: a terminal receives N channel measurement reference signal configuration information, and the channel measurement reference signal configuration information is used to indicate a component carrier (CC)/serving cell/part
  • the resources occupied by the channel measurement reference signals include time domain resources.
  • N is a positive integer; the terminal determines the first OFDM symbol occupied by DMRS in time unit.
  • the channel measurement reference signal is CRS, or channel state information reference signal (CSI-RS), or synchronization signal block (synchronization signal block, SSB), or rate matching resource (rate matching resource) , RMR).
  • CRS channel state information reference signal
  • CSI-RS channel state information reference signal
  • SSB synchronization signal block
  • RMR rate matching resource
  • the OFDM symbol occupied by the DMRS of the TRP in the first time unit is determined according to N channel measurement reference signal configuration information, and It is not determined only according to the channel measurement reference signal configuration information of the TRP. That is to say, the OFDM symbols occupied by the DMRS of a TRP will take into account the influence of the channel measurement reference signal configuration information of other TRPs, so as to ensure that the OFDM symbols occupied by the DMRS of the TRP are the same as those occupied by the DMRS of other TRPs. Channel estimation performance.
  • the channel measurement reference signal configuration information when used to indicate the time-frequency resources occupied by the channel measurement reference signal, the channel measurement reference signal configuration information may include at least one of the following information: period of time domain And offset, the number and/or positions of OFDM symbols occupied in a slot or subframe, the number and/or positions of RBs occupied, the number and/or positions of subcarriers occupied in an RB, resource units The quantity and/or location of (resource element, RE).
  • the time-frequency resources occupied by the channel measurement reference signal include OFDM symbols, and any OFDM symbol occupied by the DMRS does not overlap any OFDM symbol occupied by the channel measurement reference signal indicated by the N channel measurement reference signal configuration information.
  • the OFDM symbol refers to the OFDM symbol in a specific time slot or subframe. In this way, mutual interference between the DMRS and the channel measurement reference signal is avoided.
  • the OFDM symbol occupied by the channel measurement reference signal indicated by at least one channel measurement reference signal configuration information in the N channel measurement reference signal configuration information includes the first OFDM symbol
  • the OFDM symbol occupied by the DMRS does not include
  • the OFDM symbol occupied by the DMRS includes the second OFDM symbol.
  • the OFDM symbol occupied by the channel measurement reference signal indicated by the N channel measurement reference signal configuration information does not include the first OFDM symbol
  • the OFDM symbol occupied by the DMRS includes the first OFDM symbol
  • the OFDM symbol occupied by the DMRS The symbol does not include the second OFDM symbol.
  • the first OFDM symbol and the second OFDM symbol are OFDM symbols other than the start OFDM symbol of the PDSCH corresponding to the DMRS. Specifically, if the number of consecutive OFDM symbols occupied by the DMRS is 1, that is, the DMRS is a single-symbol DMRS, the first OFDM symbol and the second OFDM symbol are OFDM symbols other than the first OFDM symbol in the time domain resources of the PDSCH, if The number of consecutive OFDM symbols occupied by the DMRS is 2, that is, the DMRS is a dual-symbol DMRS, then the first OFDM symbol and the second OFDM symbol are the OFDM symbols other than the first OFDM symbol and the second OFDM symbol in the time domain resources of the PDSCH .
  • the first OFDM symbol and the second OFDM symbol are the last two of the PDSCH time domain resources OFDM symbol.
  • the first time unit is the time slot of the PDSCH corresponding to the DMRS
  • the first OFDM symbol is the 12th OFDM symbol of the first time unit
  • the second OFDM symbol is the 13th time unit of the first time unit. OFDM symbol.
  • the first time unit is the time slot of the PDSCH corresponding to the DMRS
  • the first OFDM symbol is the 8th OFDM symbol of the first time unit
  • the second OFDM symbol is the 9th time unit of the first time unit.
  • OFDM symbol, or, the second OFDM symbol is the seventh OFDM symbol of the first time unit.
  • one or more channel measurement reference signal configuration information in the N channel measurement reference signal configuration information are associated with a control resource set, which is used to carry DCI, and DCI is used to schedule the PDSCH corresponding to the DMRS. And/or, one or more channel measurement reference signal configuration information in the N channel measurement reference signal configuration information is associated with the code division multiplexing CDM group occupied by the DMRS.
  • the resource occupied by the channel measurement reference signal indicated by the one or more channel measurement reference signal configuration information includes multiple REs, and the PDSCH corresponding to the DMRS is not in the one or more channel measurement reference signals. Mapping on the RE occupied by the channel measurement reference signal indicated by the configuration information. In this way, mutual interference between the PDSCH and the channel measurement reference signal is avoided.
  • the resource occupied by the channel measurement reference signal indicated by the one or more channel measurement reference signal configuration information includes multiple REs, and the position of the RE occupied by the above control resource set is the same as the one or more REs.
  • the positions of the REs occupied by the channel measurement reference signals indicated by the channel measurement reference signal configuration information do not overlap. In this way, the monitoring reliability of the control resource collection is improved.
  • the PDSCH corresponding to the DMRS is not mapped on the RE occupied by the channel measurement reference signal indicated by the channel measurement reference signal configuration information in the first subset; and/or the position of the RE occupied by the control resource set is The positions of REs occupied by the channel measurement reference signals indicated by the channel measurement reference signal configuration information in the second subset do not overlap.
  • the first subset includes one or more channel measurement reference signal configuration information in the N channel measurement reference signal configuration information.
  • the second subset includes one or more channel measurement reference signal configuration information among the N channel measurement reference signal configuration information. It can be understood that the first subset and the second subset may be the same or different.
  • the method further includes: the terminal receives the first DCI and the second DCI, the first DCI is used to schedule the first PDSCH, the second DCI is used to schedule the second PDSCH, and the DMRS of the first PDSCH is the first DMRS, the DMRS of the second PDSCH is the second DMRS, the first DCI is carried in the first control resource set, and the second DCI is carried in the second control resource set.
  • the first control resource set and the second control resource set belong to different Control resource collection group.
  • the terminal determines the OFDM symbols occupied by the DMRS in the first time unit according to the N channel measurement reference signal configuration information, including: the terminal determines the OFDM symbols occupied by the first DMRS in the first time unit according to the N channel measurement reference signal configuration information, And OFDM symbols occupied by the second DMRS.
  • the method further includes: the terminal receives the first DCI and the second DCI, the first DCI is used to schedule the first PDSCH of the first time unit, and the second DCI is used to schedule the second DCI of the first time unit.
  • the DMRS of the first PDSCH is the first DMRS
  • the DMRS of the second PDSCH is the second DMRS
  • the first DCI is carried in the first control resource set
  • the second DCI is carried in the second control resource set.
  • the terminal determines the OFDM symbols occupied by the DMRS in the first time unit according to the N channel measurement reference signal configuration information, including: the terminal determines the OFDM symbols occupied by the first DMRS in the first time unit according to the N channel measurement reference signal configuration information, And OFDM symbols occupied by the second DMRS.
  • the first DMRS and the second DMRS do not occupy the OFDM symbols occupied by the channel measurement reference signal indicated by the channel measurement reference signal configuration information.
  • the target time slot can be any time slot in the time domain, which is not limited.
  • the N channel measurement reference signal configuration information includes the first channel measurement reference signal configuration information and the second channel measurement reference signal configuration information
  • neither the first DMRS nor the second DMRS occupy the first channel measurement reference signal.
  • the OFDM symbols occupied by the channel measurement reference signal indicated by the configuration information, and neither the first DMRS nor the second DMRS occupy the OFDM symbols occupied by the channel measurement reference signal indicated by the second channel measurement reference signal configuration information.
  • one or more channel measurement reference signal configuration information in the N channel measurement reference signal configuration information is associated with the first control resource set; and/or, one or more channel measurement reference signal configuration information is associated with the first control resource set; A CDM group occupied by DMRS.
  • the RE occupied by the channel measurement reference signal indicated by the one or more channel measurement reference signal configuration information associated with the first control resource set may be referred to as the first RE for short; one or more associated with the CDM group occupied by the first DMRS
  • the RE occupied by the channel measurement reference signal indicated by the channel measurement reference signal configuration information may be referred to as the second RE for short.
  • the first PDSCH is not mapped on the first RE and/or the second RE.
  • the terminal can determine the position of the RE used for the first PDSCH mapping in the time-frequency resource of the first PDSCH according to the position of the first RE and/or the second RE.
  • the first control resource set does not occupy the first RE and/or the second RE.
  • the position of the RE occupied by the first control resource set does not overlap with the position of the first RE and/or the second RE.
  • the terminal can determine whether to detect DCI on the first control resource set according to the location of the first RE and/or the second RE.
  • the terminal if the location of the RE occupied by the first control resource set overlaps with the location of the first RE and/or the second RE, the terminal does not detect the first DCI on the first control resource set; if the first control resource set is occupied If there is no overlap between the location of the RE and the location of the first RE and/or the second RE, the terminal detects the first DCI on the first control resource set.
  • one or more channel measurement reference signal configuration information in the N channel measurement reference signal configuration information is associated with the second control resource set; and/or, one or more channel measurement reference signal configuration information is associated with the second control resource set; 2.
  • CDM group occupied by DMRS wherein, the RE occupied by the channel measurement reference signal indicated by the one or more channel measurement reference signal configuration information associated with the second control resource set may be referred to as the third RE for short; one or more associated with the CDM group occupied by the second DMRS The RE occupied by the channel measurement reference signal indicated by the channel measurement reference signal configuration information may be referred to as the fourth RE for short.
  • the second PDSCH is not mapped on the third RE and/or the fourth RE.
  • the terminal can determine the position of the RE used for the second PDSCH mapping in the time-frequency resource of the second PDSCH according to the position of the third RE and/or the fourth RE.
  • the second control resource set does not occupy the third RE and/or the fourth RE.
  • the position of the RE occupied by the first control resource set does not overlap with the position of the third RE and/or the fourth RE.
  • the terminal can determine whether to detect DCI on the second control resource set according to the location of the third RE and/or the fourth RE. Specifically, if the position of the RE occupied by the second control resource set overlaps with the position of the third RE and/or the fourth RE, the terminal does not detect the second DCI on the second control resource set; if the second control resource set is occupied If the location of the RE does not overlap with the location of the third RE and/or the fourth RE, the terminal detects the second DCI on the second control resource set.
  • one or more channel measurement reference signal configuration information associated with the first control resource set and one or more channel measurement reference signal configuration information associated with the second control resource set are different.
  • the one or more channel measurement reference signal configuration information associated with the first control resource set is the same as the one or more channel measurement reference signal configuration information associated with the second control resource set.
  • the one or more channel measurement reference signal configuration information associated with the CDM group occupied by the first DMRS is different from the one or more channel measurement reference signal configuration information associated with the CDM group occupied by the second DMRS.
  • the one or more channel measurement reference signal configuration information associated with the CDM group occupied by the first DMRS is the same as the one or more channel measurement reference signal configuration information associated with the CDM group occupied by the second DMRS.
  • the QCL information of the first PDSCH is different from the QCL information of the second PDSCH.
  • the CDM group occupied by the first DMRS is different from the CDM group occupied by the second DMRS.
  • the time domain resources occupied by the first PDSCH and the time domain positions occupied by the second PDSCH partially overlap/completely overlap.
  • the first PDSCH and the second PDSCH are located in the same BWP/CC.
  • the first control resource set and the second control resource set are located in the same BWP/CC.
  • the QCL information of the first control resource set is different from the QCL information of the second control resource set.
  • the PUCCH resource set corresponding to the first control resource set is different from the PUCCH resource set corresponding to the second control resource set, or the PUCCH candidate resource pool corresponding to the PUCCH resource selection field in the first DCI and the second DCI
  • the PUCCH candidate resource pools corresponding to the PUCCH resource selection field are different.
  • the PDSCH configuration parameter set corresponding to the first control resource set is different from the PDSCH configuration parameter set corresponding to the second control resource set.
  • the candidate hybrid automatic repeat request (Hybrid Automatic Repeat Request, HARQ) process candidates corresponding to the first control resource set and the second control resource set are different.
  • the time domain position occupied by the channel measurement reference signal indicated by each channel measurement reference signal configuration information in the N channel measurement reference signal configuration information is the same, and the time domain position includes the position of the time slot, And the position of the OFDM symbol occupied by the channel measurement reference signal in the time slot.
  • the terminal can determine the OFDM symbol occupied by the DMRS in the first time unit according to one channel measurement reference signal configuration information in the N channel measurement reference signal configuration information.
  • a resource determination method including: a network device obtains N channel measurement reference signal configuration information, the channel measurement reference signal configuration information is used to indicate the occupation of channel measurement reference signals on a carrier/serving cell/part of the bandwidth
  • the resources occupied by the channel measurement reference signal include time domain resources, and N is a positive integer; the network device determines the OFDM symbol occupied by the DMRS in the first time unit according to the N channel measurement reference signal configuration information.
  • the OFDM symbol occupied by the DMRS of the TRP in the first time unit is determined according to N channel measurement reference signal configuration information, and It is not determined only according to the channel measurement reference signal configuration information of the TRP. That is to say, the OFDM symbols occupied by the DMRS of a TRP will take into account the influence of the channel measurement reference signal configuration information of other TRPs, so as to ensure that the OFDM symbols occupied by the DMRS of the TRP are the same as those occupied by the DMRS of other TRPs. Channel estimation performance.
  • the channel measurement reference signal configuration information when used to indicate the time-frequency resources occupied by the channel measurement reference signal, the channel measurement reference signal configuration information may include at least one of the following: period and offset in the time domain Quantity, the number and/or position of OFDM symbols occupied in a slot or subframe, the number and/or position of RBs occupied, the number and/or position of subcarriers occupied in an RB, the number and/or REs position.
  • the time-frequency resources of the channel measurement reference signal include OFDM symbols; any OFDM symbols occupied by the DMRS and any OFDM symbols occupied by the channel measurement reference signals indicated by the N channel measurement reference signal configuration information do not overlap ,
  • the OFDM symbol refers to the OFDM symbol in a specific time slot or subframe.
  • the OFDM symbol occupied by the channel measurement reference signal indicated by at least one channel measurement reference signal configuration information in the N channel measurement reference signal configuration information includes the first OFDM symbol
  • the OFDM symbol occupied by the DMRS does not include
  • the OFDM symbol occupied by the DMRS includes the second OFDM symbol.
  • the OFDM symbol occupied by the channel measurement reference signal indicated by the N channel measurement reference signal configuration information does not include the first OFDM symbol
  • the OFDM symbol occupied by the DMRS includes the first OFDM symbol
  • the OFDM symbol occupied by the DMRS The symbol does not include the second OFDM symbol.
  • the first OFDM symbol and the second OFDM symbol are OFDM symbols other than the start OFDM symbol of the PDSCH corresponding to the DMRS. Specifically, if the number of consecutive OFDM symbols occupied by the DMRS is 1, that is, the DMRS is a single-symbol DMRS, the first OFDM symbol and the second OFDM symbol are OFDM symbols other than the first OFDM symbol in the time domain resources of the PDSCH, if The number of consecutive OFDM symbols occupied by the DMRS is 2, that is, the DMRS is a dual-symbol DMRS, then the first OFDM symbol and the second OFDM symbol are the OFDM symbols other than the first OFDM symbol and the second OFDM symbol in the time domain resources of the PDSCH .
  • the number of OFDM symbols occupied by the PDSCH in a slot or subframe is greater than 11.
  • the first OFDM symbol and the second OFDM symbol are the last two OFDM symbols in the time domain resource of the PDSCH.
  • the first time unit is the time slot of the PDSCH corresponding to the DMRS
  • the first OFDM symbol is the 12th OFDM symbol of the first time unit
  • the second OFDM symbol is the 13th time unit of the first time unit. OFDM symbol.
  • the first time unit is the time slot of the PDSCH corresponding to the DMRS
  • the first OFDM symbol is the 8th OFDM symbol of the first time unit
  • the second OFDM symbol is the 9th time unit of the first time unit.
  • OFDM symbol, or, the second OFDM symbol is the seventh OFDM symbol of the first time unit.
  • one or more channel measurement reference signal configuration information in the N channel measurement reference signal configuration information are associated with a control resource set, which is used to carry DCI, and DCI is used to schedule the PDSCH corresponding to the DMRS. And/or, one or more channel measurement reference signal configuration information in the N channel measurement reference signal configuration information is associated with the code division multiplexing CDM group occupied by the DMRS.
  • the resource occupied by the channel measurement reference signal indicated by the one or more channel measurement reference signal configuration information includes multiple REs, and the PDSCH corresponding to the DMRS is not in the one or more channel measurement reference signals. Mapping on the RE occupied by the channel measurement reference signal indicated by the configuration information.
  • the resource occupied by the channel measurement reference signal indicated by the one or more channel measurement reference signal configuration information includes multiple REs, and the position of the RE occupied by the above control resource set is the same as the one or more REs.
  • the positions of the REs occupied by the channel measurement reference signals indicated by the channel measurement reference signal configuration information do not overlap.
  • the PDSCH corresponding to the DMRS is not mapped on the RE occupied by the channel measurement reference signal indicated by the channel measurement reference signal configuration information in the first subset; and/or the position of the RE occupied by the control resource set is The positions of REs occupied by the channel measurement reference signals indicated by the channel measurement reference signal configuration information in the second subset do not overlap.
  • the first subset includes one or more channel measurement reference signal configuration information in the N channel measurement reference signal configuration information.
  • the second subset includes one or more channel measurement reference signal configuration information among the N channel measurement reference signal configuration information. It can be understood that the first subset and the second subset may be the same or different.
  • the time domain position occupied by the channel measurement reference signal indicated by each channel measurement reference signal configuration information in the N channel measurement reference signal configuration information is the same, and the time domain position includes the position of the time slot, And the position of the OFDM symbol occupied by the channel measurement reference signal in the time slot.
  • a communication device including: a communication module that receives N channel measurement reference signal configuration information, the channel measurement reference signal configuration information is used to indicate the occupation of channel measurement reference signals on a carrier/serving cell/part of the bandwidth
  • the resource occupied by the channel measurement reference signal includes time domain resources, and N is a positive integer
  • the processing module determines the OFDM symbol occupied by the DMRS in the first time unit according to the N channel measurement reference signal configuration information.
  • the channel measurement reference signal configuration information when used to indicate the time-frequency resources occupied by the channel measurement reference signal, the channel measurement reference signal configuration information may include at least one of the following: period and offset in the time domain Quantity, the number and/or position of OFDM symbols occupied in a slot or subframe, the number and/or position of RBs occupied, the number and/or position of subcarriers occupied in an RB, the number and/or REs position.
  • the time-frequency resources occupied by the channel measurement reference signal include OFDM symbols, and any OFDM symbol occupied by the DMRS does not overlap any OFDM symbol occupied by the channel measurement reference signal indicated by the N channel measurement reference signal configuration information.
  • the OFDM symbol refers to the OFDM symbol in a specific time slot or subframe.
  • the OFDM symbol occupied by the channel measurement reference signal indicated by at least one channel measurement reference signal configuration information in the N channel measurement reference signal configuration information includes the first OFDM symbol
  • the OFDM symbol occupied by the DMRS does not include
  • the OFDM symbol occupied by the DMRS includes the second OFDM symbol.
  • the OFDM symbol occupied by the channel measurement reference signal indicated by the N channel measurement reference signal configuration information does not include the first OFDM symbol
  • the OFDM symbol occupied by the DMRS includes the first OFDM symbol
  • the OFDM symbol occupied by the DMRS The symbol does not include the second OFDM symbol.
  • the first OFDM symbol and the second OFDM symbol are OFDM symbols other than the start OFDM symbol of the PDSCH corresponding to the DMRS. Specifically, if the number of consecutive OFDM symbols occupied by the DMRS is 1, that is, the DMRS is a single-symbol DMRS, the first OFDM symbol and the second OFDM symbol are OFDM symbols other than the first OFDM symbol in the time domain resources of the PDSCH, if The number of consecutive OFDM symbols occupied by the DMRS is 2, that is, the DMRS is a dual-symbol DMRS, then the first OFDM symbol and the second OFDM symbol are the OFDM symbols other than the first OFDM symbol and the second OFDM symbol in the time domain resources of the PDSCH .
  • the number of OFDM symbols occupied by the PDSCH in a slot or subframe is greater than 11.
  • the first OFDM symbol and the second OFDM symbol are the last two OFDM symbols in the time domain resource of the PDSCH.
  • the first time unit is the time slot of the PDSCH corresponding to the DMRS
  • the first OFDM symbol is the 12th OFDM symbol of the first time unit
  • the second OFDM symbol is the 13th time unit of the first time unit. OFDM symbol.
  • the first time unit is the time slot of the PDSCH corresponding to the DMRS
  • the first OFDM symbol is the 8th OFDM symbol of the first time unit
  • the second OFDM symbol is the 9th time unit of the first time unit.
  • OFDM symbol, or, the second OFDM symbol is the seventh OFDM symbol of the first time unit.
  • one or more channel measurement reference signal configuration information in the N channel measurement reference signal configuration information are associated with a control resource set, which is used to carry DCI, and DCI is used to schedule the PDSCH corresponding to the DMRS. And/or, one or more channel measurement reference signal configuration information in the N channel measurement reference signal configuration information is associated with the code division multiplexing CDM group occupied by the DMRS.
  • the resource occupied by the channel measurement reference signal indicated by the one or more channel measurement reference signal configuration information includes multiple REs, and the PDSCH corresponding to the DMRS is not in the one or more channel measurement reference signals. Mapping on the RE occupied by the channel measurement reference signal indicated by the configuration information.
  • the resource occupied by the channel measurement reference signal indicated by the one or more channel measurement reference signal configuration information includes multiple REs, and the position of the RE occupied by the above control resource set is the same as the one or more REs.
  • the positions of the REs occupied by the channel measurement reference signals indicated by the channel measurement reference signal configuration information do not overlap.
  • the PDSCH corresponding to the DMRS is not mapped on the RE occupied by the channel measurement reference signal indicated by the channel measurement reference signal configuration information in the first subset; and/or the position of the RE occupied by the control resource set is The positions of REs occupied by the channel measurement reference signals indicated by the channel measurement reference signal configuration information in the second subset do not overlap.
  • the first subset includes one or more channel measurement reference signal configuration information in the N channel measurement reference signal configuration information.
  • the second subset includes one or more channel measurement reference signal configuration information among the N channel measurement reference signal configuration information. It can be understood that the first subset and the second subset may be the same or different.
  • the communication module is also used to receive the first DCI and the second DCI.
  • the first DCI is used to schedule the first PDSCH
  • the second DCI is used to schedule the second PDSCH
  • the DMRS of the first PDSCH is the first DMRS
  • the DMRS of the second PDSCH is the second DMRS
  • the first DCI is carried in the first control resource set
  • the second DCI is carried in the second control resource set.
  • the first control resource set and the second control resource set belong to different Control resource collection group.
  • the processing module is configured to determine the OFDM symbols occupied by the DMRS in the first time unit according to the N channel measurement reference signal configuration information, including: determining the OFDM symbols occupied by the first DMRS in the first time unit according to the N channel measurement reference signal configuration information OFDM symbols, and OFDM symbols occupied by the second DMRS.
  • the communication module is also used to receive the first DCI and the second DCI.
  • the first DCI is used to schedule the first PDSCH of the first time unit
  • the second DCI is used to schedule the second DCI of the first time unit.
  • PDSCH the DMRS of the first PDSCH is the first DMRS
  • the DMRS of the second PDSCH is the second DMRS
  • the first DCI is carried in the first control resource set
  • the second DCI is carried in the second control resource set.
  • the processing module is configured to determine the OFDM symbols occupied by the DMRS in the first time unit according to the N channel measurement reference signal configuration information, including: determining the OFDM symbols occupied by the first DMRS in the first time unit according to the N channel measurement reference signal configuration information OFDM symbols, and OFDM symbols occupied by the second DMRS.
  • the first DMRS and the second DMRS do not occupy the OFDM symbols occupied by the channel measurement reference signal indicated by the channel measurement reference signal configuration information.
  • the target time slot can be any time slot in the time domain, which is not limited.
  • the N channel measurement reference signal configuration information includes the first channel measurement reference signal configuration information and the second channel measurement reference signal configuration information
  • neither the first DMRS nor the second DMRS occupy the first channel measurement reference signal.
  • the OFDM symbols occupied by the channel measurement reference signal indicated by the configuration information, and neither the first DMRS nor the second DMRS occupy the OFDM symbols occupied by the channel measurement reference signal indicated by the second channel measurement reference signal configuration information.
  • one or more channel measurement reference signal configuration information in the N channel measurement reference signal configuration information is associated with the first control resource set; and/or, one or more channel measurement reference signal configuration information is associated with the first control resource set; A CDM group occupied by DMRS.
  • the RE occupied by the channel measurement reference signal indicated by the one or more channel measurement reference signal configuration information associated with the first control resource set may be referred to as the first RE for short; one or more associated with the CDM group occupied by the first DMRS
  • the RE occupied by the channel measurement reference signal indicated by the channel measurement reference signal configuration information may be referred to as the second RE for short.
  • the first PDSCH is not mapped on the first RE and/or the second RE.
  • the terminal can determine the position of the RE used for the first PDSCH mapping in the time-frequency resource of the first PDSCH according to the position of the first RE and/or the second RE.
  • the first control resource set does not occupy the first RE and/or the second RE.
  • the position of the RE occupied by the first control resource set does not overlap with the position of the first RE and/or the second RE.
  • the terminal can determine whether to detect DCI on the first control resource set according to the location of the first RE and/or the second RE.
  • the terminal if the location of the RE occupied by the first control resource set overlaps with the location of the first RE and/or the second RE, the terminal does not detect the first DCI on the first control resource set; if the first control resource set is occupied If there is no overlap between the location of the RE and the location of the first RE and/or the second RE, the terminal detects the first DCI on the first control resource set.
  • one or more channel measurement reference signal configuration information in the N channel measurement reference signal configuration information is associated with the second control resource set; and/or, one or more channel measurement reference signal configuration information is associated with the second control resource set; 2.
  • CDM group occupied by DMRS wherein, the RE occupied by the channel measurement reference signal indicated by the one or more channel measurement reference signal configuration information associated with the second control resource set may be referred to as the third RE for short; one or more associated with the CDM group occupied by the second DMRS The RE occupied by the channel measurement reference signal indicated by the channel measurement reference signal configuration information may be referred to as the fourth RE for short.
  • the second PDSCH is not mapped on the third RE and/or the fourth RE.
  • the terminal can determine the position of the RE used for the second PDSCH mapping in the time-frequency resource of the second PDSCH according to the position of the third RE and/or the fourth RE.
  • the second control resource set does not occupy the third RE and/or the fourth RE.
  • the position of the RE occupied by the first control resource set does not overlap with the position of the third RE and/or the fourth RE.
  • the terminal can determine whether to detect DCI on the second control resource set according to the location of the third RE and/or the fourth RE. Specifically, if the position of the RE occupied by the second control resource set overlaps with the position of the third RE and/or the fourth RE, the terminal does not detect the second DCI on the second control resource set; if the second control resource set is occupied If the location of the RE does not overlap with the location of the third RE and/or the fourth RE, the terminal detects the second DCI on the second control resource set.
  • one or more channel measurement reference signal configuration information associated with the first control resource set and one or more channel measurement reference signal configuration information associated with the second control resource set are different.
  • the one or more channel measurement reference signal configuration information associated with the first control resource set is the same as the one or more channel measurement reference signal configuration information associated with the second control resource set.
  • the one or more channel measurement reference signal configuration information associated with the CDM group occupied by the first DMRS is different from the one or more channel measurement reference signal configuration information associated with the CDM group occupied by the second DMRS.
  • the one or more channel measurement reference signal configuration information associated with the CDM group occupied by the first DMRS is the same as the one or more channel measurement reference signal configuration information associated with the CDM group occupied by the second DMRS.
  • the QCL information of the first PDSCH is different from the QCL information of the second PDSCH.
  • the CDM group occupied by the first DMRS is different from the CDM group occupied by the second DMRS.
  • the time domain resources occupied by the first PDSCH and the time domain positions occupied by the second PDSCH partially overlap/completely overlap.
  • the first PDSCH and the second PDSCH are located in the same BWP/CC.
  • the first control resource set and the second control resource set are located in the same BWP/CC.
  • the QCL information of the first control resource set is different from the QCL information of the second control resource set.
  • the PUCCH resource set corresponding to the first control resource set is different from the PUCCH resource set corresponding to the second control resource set, or the PUCCH candidate resource pool corresponding to the PUCCH resource selection field in the first DCI and the second DCI
  • the PUCCH candidate resource pools corresponding to the PUCCH resource selection field are different.
  • the PDSCH configuration parameter set corresponding to the first control resource set is different from the PDSCH configuration parameter set corresponding to the second control resource set.
  • the candidates of the candidate hybrid automatic repeat request process corresponding to the first control resource set and the second control resource set are different.
  • the time domain position occupied by the channel measurement reference signal indicated by each channel measurement reference signal configuration information in the N channel measurement reference signal configuration information is the same, and the time domain position includes the position of the time slot, And the position of the OFDM symbol occupied by the channel measurement reference signal in the time slot.
  • a communication device including: a communication module for obtaining N channel measurement reference signal configuration information, the channel measurement reference signal configuration information is used to indicate channel measurement reference signals on a carrier/serving cell/part of the bandwidth Occupied resources, the resources occupied by the channel measurement reference signal include time domain resources, and N is a positive integer.
  • the processing module is configured to determine the OFDM symbols occupied by the DMRS in the first time unit according to the N channel measurement reference signal configuration information.
  • the channel measurement reference signal configuration information when used to indicate the time-frequency resources occupied by the channel measurement reference signal, the channel measurement reference signal configuration information may include at least one of the following: period and offset in the time domain Quantity, the number and/or position of OFDM symbols occupied in a slot or subframe, the number and/or position of RBs occupied, the number and/or position of subcarriers occupied in an RB, the number and/or REs position.
  • the time-frequency resources of the channel measurement reference signal include OFDM symbols; any OFDM symbols occupied by the DMRS and any OFDM symbols occupied by the channel measurement reference signals indicated by the N channel measurement reference signal configuration information do not overlap ,
  • the OFDM symbol refers to the OFDM symbol in a specific time slot or subframe.
  • the OFDM symbol occupied by the channel measurement reference signal indicated by at least one channel measurement reference signal configuration information in the N channel measurement reference signal configuration information includes the first OFDM symbol
  • the OFDM symbol occupied by the DMRS does not include
  • the OFDM symbol occupied by the DMRS includes the second OFDM symbol.
  • the OFDM symbols occupied by the DMRS include the first OFDM symbol
  • the OFDM symbols occupied by the DMRS do not include the second OFDM symbol. symbol.
  • the first OFDM symbol and the second OFDM symbol are OFDM symbols other than the start OFDM symbol of the PDSCH corresponding to the DMRS. Specifically, if the number of consecutive OFDM symbols occupied by the DMRS is 1, that is, the DMRS is a single-symbol DMRS, the first OFDM symbol and the second OFDM symbol are OFDM symbols other than the first OFDM symbol in the time domain resources of the PDSCH, if The number of consecutive OFDM symbols occupied by the DMRS is 2, that is, the DMRS is a dual-symbol DMRS, then the first OFDM symbol and the second OFDM symbol are the OFDM symbols other than the first OFDM symbol and the second OFDM symbol in the time domain resources of the PDSCH .
  • the number of OFDM symbols occupied by the PDSCH in a slot or subframe is greater than 11.
  • the first OFDM symbol and the second OFDM symbol are the last two OFDM symbols in the time domain resource of the PDSCH.
  • the first time unit is the time slot of the PDSCH corresponding to the DMRS
  • the first OFDM symbol is the 12th OFDM symbol of the first time unit
  • the second OFDM symbol is the 13th time unit of the first time unit. OFDM symbol.
  • the first time unit is the time slot of the PDSCH corresponding to the DMRS
  • the first OFDM symbol is the 8th OFDM symbol of the first time unit
  • the second OFDM symbol is the 9th time unit of the first time unit.
  • OFDM symbol, or, the second OFDM symbol is the seventh OFDM symbol of the first time unit.
  • one or more channel measurement reference signal configuration information in the N channel measurement reference signal configuration information are associated with a control resource set, which is used to carry DCI, and DCI is used to schedule the PDSCH corresponding to the DMRS. And/or, one or more channel measurement reference signal configuration information in the N channel measurement reference signal configuration information is associated with the code division multiplexing CDM group occupied by the DMRS.
  • the resource occupied by the channel measurement reference signal indicated by the one or more channel measurement reference signal configuration information includes multiple REs, and the PDSCH corresponding to the DMRS is not in the one or more channel measurement reference signals. Mapping on the RE occupied by the channel measurement reference signal indicated by the configuration information.
  • the resource occupied by the channel measurement reference signal indicated by the one or more channel measurement reference signal configuration information includes multiple REs, and the position of the RE occupied by the above control resource set is the same as the one or more REs.
  • the positions of the REs occupied by the channel measurement reference signals indicated by the channel measurement reference signal configuration information do not overlap.
  • the PDSCH corresponding to the DMRS is not mapped on the RE occupied by the channel measurement reference signal indicated by the channel measurement reference signal configuration information in the first subset; and/or the position of the RE occupied by the control resource set is The positions of REs occupied by the channel measurement reference signals indicated by the channel measurement reference signal configuration information in the second subset do not overlap.
  • the first subset includes one or more channel measurement reference signal configuration information in the N channel measurement reference signal configuration information.
  • the second subset includes one or more channel measurement reference signal configuration information among the N channel measurement reference signal configuration information. It can be understood that the first subset and the second subset may be the same or different.
  • the time domain position occupied by the channel measurement reference signal indicated by each channel measurement reference signal configuration information in the N channel measurement reference signal configuration information is the same, and the time domain position includes the position of the time slot, And the position of the OFDM symbol occupied by the channel measurement reference signal in the time slot.
  • a communication device including: a processor and a memory, the memory is coupled to the processor, the memory stores instructions, and when the processor executes the instructions, the communication device Implement the resource determination method involved in any one of the above-mentioned first aspect or second aspect.
  • the communication device may further include a communication interface for the communication device to communicate with other devices.
  • the communication interface may be a transceiver, circuit, bus, module, or other types of communication interfaces .
  • a computer-readable storage medium stores instructions that, when run on a computer, can cause the computer to execute any design in the first aspect or the second aspect. The method of determining the resources involved.
  • a computer program product containing instructions which when running on a computer, enables the computer to execute the resource determination method involved in any one of the designs in the first aspect or the second aspect.
  • a chip in an eighth aspect, includes a processor, and when the processor executes an instruction, the processor is used to execute the resource determination method involved in any one of the designs of the first aspect or the second aspect.
  • the instruction can come from the internal memory of the chip or the external memory of the chip.
  • the chip also includes input and output circuits.
  • a system which includes at least one communication device that executes the resource determination method involved in any of the designs in the first aspect and at least one resource that executes the resource in any of the designs in the second aspect.
  • Communication device for determining method.
  • FIG. 1 is a schematic diagram of the location of a DMRS provided by an embodiment of this application;
  • FIG. 2 is a schematic diagram of the location of another DMRS provided by an embodiment of the application.
  • FIG. 3 is a schematic diagram of the location of another DMRS provided by an embodiment of the application.
  • FIG. 4 is a schematic diagram of a CRS resource pattern provided by an embodiment of the application.
  • FIG. 5 is a schematic diagram of another CRS resource pattern provided by an embodiment of the application.
  • FIG. 6 is a schematic diagram of another CRS resource pattern provided by an embodiment of the application.
  • FIG. 7 is a schematic diagram of the architecture of a communication system provided by an embodiment of this application.
  • FIG. 8 is a schematic structural diagram of a communication device provided by an embodiment of this application.
  • FIG. 9 is a flowchart of a method for determining a resource according to an embodiment of the application.
  • FIG. 10 is a flowchart of a method for determining a resource provided by an embodiment of this application.
  • FIG. 11 is a schematic structural diagram of a communication device provided by an embodiment of this application.
  • FIG. 12 is a schematic structural diagram of a communication device provided by an embodiment of this application.
  • FIG. 13 is a schematic structural diagram of a chip provided by an embodiment of the application.
  • A/B can mean A or B.
  • the "and/or” in this article is only an association relationship describing the associated objects, which means that there can be three relationships, for example, A and/or B, which can mean: A alone exists, A and B exist at the same time, and B exists alone These three situations.
  • “at least one” means one or more
  • “plurality” means two or more. The words “first” and “second” do not limit the quantity and order of execution, and the words “first” and “second” do not limit the difference.
  • NR for a normal cyclic prefix (CP), one slot contains 14 OFDM symbols.
  • CP normal cyclic prefix
  • 1 slot For extended CP, 1 slot contains 12 OFDM symbols.
  • one slot includes 14 OFDM symbols.
  • 14 OFDM symbols are numbered sequentially from front to back in time sequence, the number of the oldest OFDM symbol is 0, and the number of the latest OFDM symbol is 13. That is, one slot includes OFDM symbol #0 to OFDM symbol #13.
  • a subframe includes 14 OFDM symbols.
  • the 14 OFDM symbols are numbered sequentially from front to back in time sequence, the number of the oldest OFDM symbol is 0, and the number of the latest OFDM symbol is 13. That is, one slot includes OFDM symbol #0 to OFDM symbol #13.
  • the time slot in NR is equivalent to the subframe in LTE.
  • the QCL information is used to assist in describing the beamforming information on the receiving side of the terminal and the receiving process, characterizing the large-scale characteristics of the channel, usually long-term observations, and can also characterize the receiving beam information.
  • the existing standards define four types of QCL information, namely:
  • QCL types A Doppler shift (Doppler shift), Doppler spread (Doppler spread), average channel delay (Average delay), delay spread (Delay spread);
  • QCL types B Doppler shift, Doppler spread
  • QCL types C Average delay, Doppler shift
  • the QCL information of the PDSCH or PDCCH is defined by establishing an association relationship between the DMRS of the PDSCH/PDCCH and a certain reference signal resource, that is, the QCL information of the PDSCH/PDCCH can be determined based on the reception and measurement of the reference signal associated with its DMRS.
  • the DMRS can be associated with a channel state information reference signal (Channel State Information Reference Signal, CSI-RS), and the receiving beam (QCL Type-D) used by the terminal to receive the CSI-RS can be used as the receiving beam for receiving the DMRS.
  • CSI-RS Channel State Information Reference Signal
  • QCL Type-D receiving beam used by the terminal to receive the CSI-RS
  • a CDM group contains multiple antenna ports. Multiple antenna ports in the same CDM group multiplex the same time-frequency resources, and multiple antenna ports in the same CDM group are distinguished by code division, that is, in the same CDM
  • the code domain resources of the sequences of multiple antenna ports are different.
  • the code domain resources are usually orthogonal codes, such as orthogonal cover codes (OCC).
  • OCC orthogonal cover codes
  • the OCC code can be used in time domain, frequency domain, spatial domain (beam domain), and so on.
  • Control resource set (CORESET), control resource set group
  • the control resource set is used to indicate the time-frequency resource where the physical downlink control channel (physical downlink control channel) PDCCH is located, and the PDCCH is used to carry DCI.
  • the time-frequency resource occupied by the PDCCH uses CORESET as the configuration unit, which represents the physical time-frequency resource carrying the DCI in a DCI detection period.
  • CORESET can occupy 1-3 OFDM symbols in the time domain, and the occupied bandwidth is indicated in the frequency domain with a granularity of 6RB.
  • CORESET will also be configured to receive DCI and corresponding DMRS on this physical time-frequency resource. QCL assumptions. From the perspective of the terminal, each CC and BWP used for communication will correspond to one or more CORESETs.
  • the control resource set group may include one or more control resource sets.
  • the terminal can perform channel estimation based on the DMRS, and the result of the channel estimation can be used to receive and demodulate the PDSCH corresponding to the DMRS.
  • DMRS will occupy part of the OFDM symbols in the PDSCH. In other words, part of the OFDM symbols in the PDSCH are used to carry DMRS.
  • the base station schedules the time-frequency resources of the PDSCH through the DCI.
  • the base station and the terminal will pre-appoint DMRS to occupy those time-frequency resource locations in the PDSCH, and the DCI will also include the location information of the DMRS, so that the terminal will occupy according to the pre-appointed PDSCH and DMRS.
  • DMRS includes two types, one is single-symbol DMRS, and the other is double-symbol DMRS.
  • a single-symbol DMRS means that the number of OFDM symbols continuously occupied by the DMRS is 1.
  • the dual-symbol DMRS means that the number of OFDM symbols continuously occupied by the DMRS is 2. The following takes single-symbol DMRS as an example to introduce.
  • DMRS can be divided into front-loaded DMRS (front-loaded DMRS) and additional DMRS (additional DMRS) according to the position of the OFDM symbol in the PDSCH occupied by it.
  • the front-loaded DMRS occupies the first OFDM symbol of the PDSCH.
  • the terminal can determine the first OFDM symbol of the PDSCH according to the time domain position of the PDSCH indicated in the DCI, so as to determine the OFDM symbol position occupied by the front-loaded DMRS.
  • the PDSCH When the base station configures additional DMRS through high-level signaling such as RRC signaling, the PDSCH will include additional DMRS, and the high-level signaling will also indicate the number of additional DMRS, for example, the number can be 1, 2, 3, etc.
  • the position of the OFDM symbol occupied by the additional DMRS is determined according to the number of additional DMRS configured by the RRC and the length of the corresponding PDSCH in one time slot. Among them, the length of the PDSCH in a slot is the number of OFDM symbols occupied by the PDSCH in a slot.
  • the additional DMRS will occupy at least one of the last two OFDM symbols in the OFDM symbols occupied by the PDSCH.
  • the number of additional DMRS is 2 or 3
  • the number of additional DMRS is 2 or 3
  • the DMRS at the end of the PDSCH is more important to prevent extrapolation of more than 2 OFDM symbols.
  • the positions of the OFDM symbols occupied by the DMRS can be referred to Table 1.
  • l d is the number of OFDM symbols between the first OFDM symbol in the slot and the last OFDM symbol in the time domain resource of the PDSCH.
  • l 0 is used to indicate the position of the first OFDM symbol occupied by the DMRS.
  • l 0 2 or 3
  • l 0 3
  • the first OFDM symbol occupied by the DMRS is OFDM symbol #3 in the slot.
  • the position of the DMRS may be as shown in FIG. 1.
  • the position of the DMRS may be as shown in FIG. 2.
  • the position of the DMRS may be as shown in FIG. 3.
  • the time domain positions of the PDSCHs scheduled by the two base stations need to be limited.
  • X can be selected from 12-14.
  • the DMRS corresponding to the PDSCH refers to the DMRS used to demodulate the PDSCH.
  • the OFDM symbol occupied by the DMRS corresponding to the PDSCH is located on the time domain resource of the PDSCH.
  • the PDSCH corresponding to the DMRS refers to the PDSCH demodulated with the DMRS.
  • the time domain resources of the PDSCH corresponding to the DMRS include the OFDM symbols occupied by the DMRS.
  • CRS is used to perform channel estimation on the downlink physical channel to demodulate data information, and perform channel measurement to enable the terminal to obtain CSI information and report it to the base station.
  • CRS supports the configuration of 1, 2, and 4 antenna ports.
  • the CRS occupies OFDM symbol #0, OFDM symbol #4, OFDM symbol #7, and OFDM symbol #11 in the subframe.
  • the CRS occupies OFDM symbol #0, OFDM symbol #4, OFDM symbol #7, and OFDM symbol #11 in the subframe.
  • the CRS occupies OFDM symbol #0, OFDM symbol #2, OFDM symbol #4, OFDM symbol #7, OFDM symbol #8, and OFDM symbol #11 in the subframe.
  • multiple TRPs in the cooperative set are configured for LTE and NR co-sites
  • multiple TRPs need to be configured with a set of independent CRS configuration parameters.
  • different TRPs can be configured to occupy different CRSs. Slots, and/or, configure CRS to occupy different OFDM symbols, and/or configure CRS to occupy different RBs and subcarriers in each RB.
  • different TRPs independently configure the CRS configuration parameters to indicate that the serving cells corresponding to different TRPs adopt different CRS time-frequency resource patterns.
  • Different CRS configuration parameters can be configured through independent RRC signaling, or through the same RRC signaling. For example, if there is a master TRP (master TRP) among multiple TRPs in the coordination set, the master TRP can send RRC signaling to other TRPs to configure a set of independent CRS configuration parameters for other TRPs.
  • master TRP master TRP
  • the master TRP can send RRC signaling to other TRPs to configure a set of independent CRS
  • the DMRS corresponding to the PDSCH independently scheduled by the multiple TRPs may be aligned in the time domain.
  • TRP#1 and TRP#2 Let’s take TRP#1 and TRP#2 to form a cooperative set to serve a terminal together as an example.
  • TPR1 dispatches PDSCH#1 through CORESET1 and DCI dispatches PDSCH#1, and TRP#2 dispatches PDSCH#1 through CORESET2.
  • the DCI schedules PDSCH#2, and the OFDM symbol length of PDSCH#1 and PDSCH#2 are both 13 or 14.
  • the DMRS of PDSCH#1 is called DMRS#1
  • the DMRS of PDSCH#2 is called DMRS#2.
  • the number of additional DMRS is 1.
  • the configuration information of CRS#1 corresponds to the time-frequency resource occupied by TRP#1 sending CRS1
  • the configuration information of CRS#2 corresponds to the time-frequency resource occupied by TRP#2 sending CRS2. Since the configuration information of CRS#1 and the configuration information of CRS#2 are configured through independent RRC signaling, the configuration information of CRS#1 and the configuration information of CRS#2 may be different.
  • the configuration information of CRS#1 indicates that CRS#1 occupies OFDM symbol #0, OFDM symbol #4, OFDM symbol #7, and OFDM symbol #11 in slot #1
  • the configuration information of CRS#2 indicates CRS#2 Occupy OFDM symbol #0, OFDM symbol #4, OFDM symbol #7, and OFDM symbol #11 in slot #2.
  • the OFDM symbol occupied by DMRS#1 is determined according to the configuration information of CRS#1
  • the OFDM symbol occupied by DMRS#2 is determined according to the configuration information of CRS#2.
  • the OFDM symbol occupied by DMRS#1 needs to avoid the OFDM symbol occupied by CRS#1, so DMRS#1 occupies OFDM symbol #12.
  • DMRS#2 can occupy OFDM symbol #11.
  • DMRS#1 and DMRS#2 are not aligned in the time domain, which affects the DMRS-based channel estimation performance of the terminal.
  • this application provides a method for determining resources, and the specific description of the method can be found below.
  • the technical solutions provided by the embodiments of this application can be applied to various communication systems, for example, a new radio (NR) communication system that adopts the fifth generation (5G) communication technology, a future evolution system, or multiple communication integrations System and so on.
  • the technical solution provided by this application can be applied to a variety of application scenarios, such as machine to machine (M2M), macro and micro communications, enhanced mobile broadband (eMBB), ultra-high reliability and ultra-low latency Scenarios such as communication (ultra-reliable&low latency communication, uRLLC) and massive Internet of Things communication (massive machine type communication, mMTC).
  • M2M machine to machine
  • eMBB enhanced mobile broadband
  • uRLLC ultra-high reliability and ultra-low latency Scenarios
  • mMTC massive Internet of Things communication
  • These scenarios may include, but are not limited to: a communication scenario between a communication device and a communication device, a communication scenario between a network device and a network device, a communication scenario between a network device and a communication device, and so on.
  • a communication scenario between a communication device and a communication device a communication scenario between a network device and a network device
  • a communication scenario between a network device and a communication device and so on.
  • the application in the communication scenario between the network device and the terminal is taken as an example.
  • FIG. 7 shows a schematic diagram of the architecture of a communication system to which the technical solution provided by this application is applicable.
  • the communication system may include multiple network devices (only two are shown in FIG. 7) and one or more terminals (FIG. 7 Only 1 is shown in). As shown in Figure 7, two network devices can communicate with the terminal at the same time.
  • the network device may be a base station or a base station controller for wireless communication.
  • the base station may include various types of base stations, such as: micro base stations (also referred to as small stations), macro base stations, relay stations, access points, etc., which are not specifically limited in the embodiment of the present application.
  • the base station may be a base station (BTS) in the global system for mobile communications (GSM), code division multiple access (CDMA), and broadband
  • BTS base station
  • GSM global system for mobile communications
  • CDMA code division multiple access
  • WCDMA wideband code division multiple access
  • eNB or e-NodeB evolutional node B
  • LTE long term evolution
  • eNB Internet of Things
  • NB-IoT narrowband-internet of things
  • PLMN public land mobile network
  • the device used to implement the function of the network device may be a network device, or a device capable of supporting the network device to implement the function, such as a chip system.
  • the device for implementing the functions of the network equipment is the network equipment as an example to describe the technical solutions provided by the embodiments of the present application.
  • the network equipment mentioned in this application usually includes a baseband unit (BBU), a remote radio unit (RRU), an antenna, and a feeder for connecting the RRU and the antenna.
  • BBU baseband unit
  • RRU remote radio unit
  • the BBU is used for signal modulation.
  • RRU is used for radio frequency processing.
  • the antenna is responsible for the conversion between the guided wave on the cable and the space wave in the air.
  • the distributed base station greatly shortens the length of the feeder between the RRU and the antenna, which can reduce signal loss, and can also reduce the cost of the feeder.
  • RRU plus antenna is relatively small and can be installed anywhere, making network planning more flexible.
  • all the BBUs can also be centralized and placed in the Central Office (CO).
  • CO Central Office
  • decentralized BBUs are centralized and turned into a BBU baseband pool, they can be managed and scheduled uniformly, and resource allocation is more flexible.
  • all physical base stations evolved into virtual base stations. All virtual base stations share the user's data transmission and reception, channel quality and other information in the BBU baseband pool, and cooperate with each other to realize joint scheduling.
  • the base station may include a centralized unit (CU) and a distributed unit (DU).
  • the base station may also include an active antenna unit (AAU).
  • the CU implements part of the functions of the base station, and the DU implements some of the functions of the base station.
  • the CU is responsible for processing non-real-time protocols and services, and implements radio resource control (radio resource control, RRC), packet data convergence protocol (packet data convergence protocol, PDCP) layer functions.
  • RRC radio resource control
  • PDCP packet data convergence protocol
  • the DU is responsible for processing physical layer protocols and real-time services, and realizes the functions of radio link control (RLC), media access control (MAC), and physical (physical, PHY) layers.
  • RLC radio link control
  • MAC media access control
  • PHY physical layer
  • the network device may be a device that includes one or more of a CU node, a DU node, and an AAU node.
  • the CU can be divided into network devices in the RAN, or the CU can be divided into network devices in the core network (core network, CN), which is not limited here.
  • the terminal is a device with wireless transceiver function.
  • the terminal can be deployed on land, including indoor or outdoor, handheld or vehicle-mounted; it can also be deployed on the water (such as a ship, etc.); it can also be deployed in the air (such as aeroplane, balloon, satellite, etc.).
  • the terminal equipment may be user equipment (UE).
  • the UE includes a handheld device with a wireless communication function, a vehicle-mounted device, a wearable device, or a computing device.
  • the UE may be a mobile phone, a tablet computer, or a computer with wireless transceiver function.
  • Terminal equipment can also be virtual reality (VR) terminal equipment, augmented reality (augmented reality, AR) terminal equipment, wireless terminals in industrial control, wireless terminals in unmanned driving, wireless terminals in telemedicine, and smart Wireless terminals in power grids, wireless terminals in smart cities, wireless terminals in smart homes, and so on.
  • the device for implementing the function of the terminal may be a terminal, or a device capable of supporting the terminal to implement the function, such as a chip system.
  • the chip system may be composed of chips, or may include chips and other discrete devices.
  • the device used to implement the functions of the terminal is a terminal as an example to describe the technical solutions provided by the embodiments of the present application.
  • the communication device includes: at least one processor 101, a communication line 102, a memory 103 and at least one communication interface 104.
  • the processor 101 can be a general-purpose central processing unit (central processing unit, CPU), a microprocessor, an application-specific integrated circuit (ASIC), or one or more programs for controlling the execution of the program of this application. integrated circuit.
  • CPU central processing unit
  • ASIC application-specific integrated circuit
  • the communication line 102 may include a path to transmit information between the aforementioned components.
  • the communication interface 104 uses any device such as a transceiver to communicate with other devices or communication networks, such as Ethernet, RAN, wireless local area networks (WLAN), etc.
  • a transceiver to communicate with other devices or communication networks, such as Ethernet, RAN, wireless local area networks (WLAN), etc.
  • WLAN wireless local area networks
  • the memory 103 may be read-only memory (ROM) or other types of static storage devices that can store static information and instructions, random access memory (RAM), or other types that can store information and instructions
  • the dynamic storage device can also be electrically erasable programmable read-only memory (EEPROM), compact disc read-only memory (CD-ROM) or other optical disk storage, optical disc storage (Including compact discs, laser discs, optical discs, digital versatile discs, Blu-ray discs, etc.), magnetic disk storage media or other magnetic storage devices, or can be used to carry or store desired program codes in the form of instructions or data structures and can be used by a computer Any other media accessed, but not limited to this.
  • the memory can exist independently and is connected to the processor through the communication line 102.
  • the memory can also be integrated with the processor.
  • the memory provided in the embodiments of the present application may generally be non-volatile.
  • the memory 103 is used to store computer-executed instructions for executing the solution of the present application, and the processor 101 controls the execution.
  • the processor 101 is configured to execute computer-executable instructions stored in the memory 103, so as to implement the method provided in the following embodiments of the present application.
  • the computer-executable instructions in the embodiments of the present application may also be referred to as application program code, which is not specifically limited in the embodiments of the present application.
  • the processor 101 may include one or more CPUs, such as CPU0 and CPU1 in FIG. 8.
  • the communication device may include multiple processors, such as the processor 101 and the processor 107 in FIG. 8.
  • processors can be a single-CPU (single-CPU) processor or a multi-core (multi-CPU) processor.
  • the processor here may refer to one or more devices, circuits, and/or processing cores for processing data (for example, computer program instructions).
  • the communication apparatus may further include an output device 105 and an input device 106.
  • the output device 105 communicates with the processor 101 and can display information in a variety of ways.
  • the output device 105 may be a liquid crystal display (LCD), a light emitting diode (LED) display device, a cathode ray tube (CRT) display device, or a projector (projector) Wait.
  • the input device 106 communicates with the processor 101 and can receive user input in a variety of ways.
  • the input device 106 may be a mouse, a keyboard, a touch screen device, or a sensor device.
  • a resource determination method provided by an embodiment of this application includes the following steps:
  • the communication device obtains N channel measurement reference signal configuration information.
  • the channel measurement reference signal configuration information is used to indicate the resources occupied by the channel measurement reference signal on a carrier/serving cell/part of the bandwidth.
  • the resources occupied by the channel measurement reference signal include time-frequency resources.
  • the time-frequency resources occupied by the channel measurement reference signal include OFDM symbols.
  • the time-frequency resource occupied by the channel measurement reference signal includes multiple REs.
  • the channel measurement reference signal configuration information may include at least one of the following information: period and offset in the time domain, The number and/or location of OFDM symbols occupied in a slot/subframe, the number and/or location of RBs occupied, the number and/or location of subcarriers occupied in an RB, or the number and/or location of REs Wait.
  • the channel measurement reference signal may include one of CRS, CSI-RS, SSB, or RMR.
  • the foregoing N channel measurement reference signal configuration information may correspond to N TRPs in a one-to-one correspondence. That is, the N channel measurement reference signal configuration information may be independently configured for N TRPs. N is a positive integer.
  • step S101 may be specifically implemented as: the TRP generates its own channel measurement reference signal configuration information, and the TRP obtains N from other TRPs participating in the assisted transmission. -1 channel measurement reference signal configuration information. Alternatively, the TRP obtains N channel measurement reference signal configuration information through other network devices (for example, a core network, a management device, or a main TRP).
  • the TRP generates its own channel measurement reference signal configuration information
  • the TRP obtains N from other TRPs participating in the assisted transmission. -1 channel measurement reference signal configuration information.
  • the TRP obtains N channel measurement reference signal configuration information through other network devices (for example, a core network, a management device, or a main TRP).
  • step S101 may be specifically implemented as: the terminal receives the channel measurement reference signal configuration information sent by each TRP in the N TRPs.
  • the terminal receives channel measurement reference signal configuration information sent by one or more TRPs among the N TRPs, where one TRP may send multiple channel measurement reference signal configuration information.
  • the N channel measurement reference signal configuration information may be received by the terminal at the same time unit, or may be received by the terminal at different time units.
  • the communication device determines the OFDM symbols occupied by the DMRS in the first time unit according to the N channel measurement reference signal configuration information.
  • the first time unit may be the time slot, mini time slot, subframe, or transmission time interval where the PDSCH corresponding to the DMRS is located, which is not limited in the present invention.
  • the first time unit may be the time domain resource occupied by the PDSCH corresponding to the DMRS. It can be understood that the PDSCH corresponding to the DMRS is the PDSCH demodulated using the DMRS. Therefore, the DMRS may also be called the DMRS of the PDSCH, or the DMRS corresponding to the PDSCH.
  • the communication device can measure the reference signal according to the N channel measurement reference signals.
  • One channel measurement reference signal configuration information in the configuration information determines the OFDM symbols occupied by the DMRS in the first time unit.
  • the communication device measures according to the N channels With reference to the signal configuration information, determine the OFDM symbols occupied by the DMRS in the first time unit.
  • the time domain position occupied by the channel measurement reference signal includes: the position of the time slot and the position of the OFDM symbol occupied by the channel measurement reference signal in the time slot.
  • any OFDM symbol occupied by the DMRS and any OFDM symbol occupied by the channel measurement reference signal indicated by the N channel measurement reference signal configuration information do not overlap, where the OFDM symbol Refers to the OFDM symbol in a specific time slot or subframe.
  • the OFDM symbols occupied by the channel measurement reference signal indicated by the N channel measurement reference signal configuration information specifically include: the channel measurement indicated by each channel measurement reference signal configuration information in the N channel measurement reference signal configuration information OFDM symbol occupied by the reference signal.
  • the OFDM symbols occupied by the DMRS meet the following rules:
  • the first OFDM symbol and the second OFDM symbol are two different OFDM symbols in the same slot or subframe.
  • the second OFDM symbol may be an OFDM symbol preceding the first OFDM symbol, for example, the first OFDM symbol is OFDM symbol #11, and the second OFDM symbol is OFDM symbol #10.
  • the second OFDM symbol may be an OFDM symbol that is one digit after the first OFDM symbol, for example, the first OFDM symbol is OFDM symbol #11, and the second OFDM symbol is OFDM symbol #12.
  • the embodiment of the present application does not limit the positional relationship between the first OFDM symbol and the second OFDM symbol.
  • the position of the first OFDM symbol is the best position for channel estimation. Therefore, when the first OFDM symbol is not used to carry CRS, the first OFDM symbol is used to carry DMRS; however, when the first OFDM symbol is used to carry CRS, in order to avoid conflicts between CRS and DMRS, the first OFDM symbol is not used. For carrying DMRS. In this case, the DMRS migrates from the first OFDM symbol to the second OFDM symbol.
  • the first OFDM symbol and the second OFDM symbol are OFDM symbols other than the start OFDM symbol of the PDSCH corresponding to the DMRS. Specifically, if the number of consecutive OFDM symbols occupied by the DMRS is 1, that is, the DMRS is a single-symbol DMRS, the first OFDM symbol and the second OFDM symbol are OFDM symbols other than the first OFDM symbol in the time domain resources of the PDSCH, if The number of consecutive OFDM symbols occupied by the DMRS is 2, that is, the DMRS is a dual-symbol DMRS, then the first OFDM symbol and the second OFDM symbol are the OFDM symbols other than the first OFDM symbol and the second OFDM symbol in the time domain resources of the PDSCH .
  • the first OFDM symbol and the second OFDM symbol are the last two OFDM symbols in the time domain resources of the PDSCH.
  • the first time unit is the time slot where the PDSCH corresponding to the DMRS is located
  • the first OFDM symbol is the 12th OFDM symbol of the first time unit
  • the second OFDM symbol is the 13th OFDM symbol of the first time unit.
  • the first time unit is the time slot where the PDSCH corresponding to the DMRS is located
  • the first OFDM symbol is the 8th OFDM symbol of the first time unit
  • the second OFDM symbol is the 9th OFDM symbol of the first time unit
  • the second OFDM symbol is the 7th OFDM symbol of the first time unit.
  • rule 1 and rule 2 can be applied to various DMRS configurations, for example, the number of additional DMRS can be any one of 1-4.
  • the TRP can transmit the PDSCH in the first time unit and the DMRS in the first time unit.
  • DMRS is transmitted on the occupied OFDM symbol.
  • the terminal may receive the DMRS on the OFDM symbol occupied by the DMRS in the first time unit.
  • the OFDM symbols occupied by the DMRS of the TRP in the first time unit are based on N channel measurement reference signal configuration information. Determined, rather than determined based only on the channel measurement reference signal configuration information of the TRP. That is to say, the OFDM symbols occupied by the DMRS of a TRP will take into account the influence of the channel measurement reference signal configuration information of other TRPs, so as to ensure that the OFDM symbols occupied by the DMRS of the TRP are the same as those occupied by the DMRS of other TRPs. Channel estimation performance.
  • one or more channel measurement reference signal configuration information in the N channel measurement reference signal configuration information is associated with a control resource set, which is used to carry DCI, and DCI is used to schedule the PDSCH corresponding to the DMRS. And/or, one or more channel measurement reference signal configuration information in the N channel measurement reference signal configuration information are associated with the CDM group occupied by the DMRS.
  • the association between the channel measurement reference signal configuration information and the control resource set refers to the association relationship between the channel measurement reference signal configuration information and the control resource set.
  • the base station or terminal can determine a control resource set associated with the channel measurement reference signal configuration information, or the base station or terminal can determine the control resource set associated with Channel measurement reference signal configuration information.
  • the above-mentioned association relationship between the channel measurement reference signal configuration information and the control resource set can also be referred to as the corresponding relationship between the channel measurement reference signal configuration information and the control resource set, for example, the relationship between the channel measurement reference signal configuration information and the control resource set
  • the terminal determines whether it is in the control resource set according to the channel measurement reference signal configuration information associated with the control resource set. DCI is detected on the resource collection. Specifically, if the position of the RE occupied by the control resource set overlaps with the position of the RE occupied by the channel measurement reference signal indicated by the channel measurement reference signal configuration information associated with the control resource set, the terminal is not on the control resource set Check DCI. Otherwise, the terminal detects DCI on the control resource set.
  • the base station determines the control resource set according to the channel measurement reference signal configuration information associated with the control resource set
  • the resource configuration includes the configuration of time-frequency resources. Specifically, the base station determines that the position of the RE occupied by the control resource set does not overlap with the position of the RE occupied by the channel measurement reference signal indicated by the channel measurement reference signal configuration information associated with the control resource set.
  • the base station or terminal can determine the target PDSCH according to the channel measurement reference signal configuration information associated with the control resource set
  • the target PDSCH is the PDSCH scheduled by the DCI carried by the control resource set.
  • the target PDSCH is not mapped on the RE occupied by the channel measurement reference signal indicated by the channel measurement reference signal configuration information associated with the control resource set. That is, the base station does not send the target PDSCH on the RE occupied by the channel measurement reference signal indicated by the channel measurement reference signal configuration information associated with the control resource set.
  • the terminal does not receive the PDSCH on the RE occupied by the channel measurement reference signal indicated by the channel measurement reference signal configuration information associated with the control resource set.
  • the channel measurement reference signal configuration information is associated with the CDM group, which means that there is an association relationship between the channel measurement reference signal and the CDM group. Based on the association relationship between the channel measurement reference signal and the CDM group, the base station or terminal can determine the CDM group associated with a channel measurement reference signal configuration information, or the base station or terminal can determine the channel measurement reference signal configuration associated with a CDM group information.
  • the above-mentioned association relationship between the channel measurement reference signal configuration information and the CDM group can also be referred to as the corresponding relationship between the channel measurement reference signal configuration information and the CDM group, for example: a pair between the channel measurement reference signal configuration information and the CDM group
  • One-to-one correspondence, one-to-many correspondence, or many-to-one correspondence and the embodiments of the present application are not limited thereto.
  • the base station or terminal can determine the PDSCH mapping corresponding to the CDM group according to the channel measurement reference signal configuration information associated with the CDM group.
  • the PDSCH corresponding to the CDM group refers to the PDSCH corresponding to the DMRS occupying the CDM group.
  • the PDSCH corresponding to the CDM group is not mapped on the RE occupied by the channel measurement reference signal indicated by the channel measurement reference signal configuration information associated with the CDM group. That is, the base station does not transmit the PDSCH corresponding to the CDM group on the RE occupied by the channel measurement reference signal indicated by the channel measurement reference signal configuration information associated with the CDM group.
  • the terminal does not receive the PDSCH corresponding to the CDM group on the RE occupied by the channel measurement reference signal indicated by the channel measurement reference signal configuration information associated with the CDM group.
  • the channel measurement reference signal configuration information may include the identification/index value of the control resource set to indicate the control resource set associated with the channel measurement reference signal configuration information. And/or, the channel measurement reference signal configuration information may include the ID/index value of the CDM group to indicate the CDM group associated with the channel measurement reference signal configuration.
  • the network device may send indication information to the terminal to indicate the control resource set associated with the channel measurement reference signal configuration information and/or the CDM group associated with the channel measurement reference signal configuration information.
  • the resource occupied by the channel measurement reference signal indicated by the one or more channel measurement reference signal configuration information includes multiple REs. It can be understood that one RE occupies one OFDM symbol in the time domain and one subcarrier in the frequency domain.
  • the PDSCH corresponding to the DMRS is not mapped on the RE occupied by the channel measurement reference signal indicated by the one or more channel measurement reference signal configuration information to avoid mutual interference between the PDSCH and the CRS corresponding to the DMRS.
  • the position of the RE occupied by the control resource set does not overlap with the position of the RE occupied by the channel measurement reference signal indicated by the one or more channel measurement reference signal configuration information.
  • the position of the RE occupied by the above control resource set specifically refers to the position of the RE that needs to be monitored when the terminal monitors the control resource set.
  • the terminal The set of control resources is not monitored.
  • the PDSCH corresponding to the DMRS is not mapped on the RE occupied by the channel measurement reference signal indicated by the channel measurement reference signal configuration information in the first subset; and/or the position of the RE occupied by the control resource set is The positions of REs occupied by the channel measurement reference signals indicated by the channel measurement reference signal configuration information in the second subset do not overlap.
  • the first subset includes one or more channel measurement reference signal configuration information in the N channel measurement reference signal configuration information.
  • the second subset includes one or more channel measurement reference signal configuration information among the N channel measurement reference signal configuration information. It can be understood that the first subset and the second subset may be the same or different.
  • another resource determination method provided in this embodiment of the application includes the following steps:
  • the terminal receives the first DCI and the second DCI.
  • the first DCI is used to schedule the first PDSCH
  • the second DCI is used to schedule the second PDSCH.
  • the PUCCH candidate resource pool corresponding to the PUCCH resource selection field in the first DCI is different from the PUCCH candidate resource pool corresponding to the PUCCH resource selection field in the second DCI.
  • the first PDSCH and the second PDSCH are located in the same BWP/CC.
  • the first PDSCH is different from the second PDSCH.
  • the QCL information of the first PDSCH is different from the QCL information of the second PDSCH.
  • the time domain resources occupied by the first PDSCH and the time domain positions occupied by the second PDSCH partially overlap/completely overlap.
  • the DMRS of the first PDSCH is called the first DMRS
  • the DMRS of the second PDSCH is called the second DMRS.
  • the CDM group occupied by the first DMRS is different from the CDM group occupied by the second DMRS.
  • the first DCI is carried in the first control resource set
  • the second DCI is carried in the second control resource set.
  • the first control resource set and the second control resource set are located in the same BWP/CC.
  • the first control resource set is different from the second control resource set, including at least one of the following situations: (1) QCL information of the first control resource set is different from QCL information of the second control resource set. (2)
  • the PUCCH resource set corresponding to the first control resource set is different from the PUCCH resource set corresponding to the second control resource set.
  • the PDSCH configuration parameter set corresponding to the first control resource set is different from the PDSCH configuration parameter set corresponding to the second control resource set.
  • the candidate hybrid automatic repeat request process candidates corresponding to the first control resource set and the second control resource set are different.
  • the terminal may receive the first DCI and the second DCI in the same time unit; or, the terminal may receive the first DCI and the second DCI in different time units, respectively.
  • the terminal can learn that the first DCI and the second DCI come from different TRP.
  • the terminal may learn that the first DCI and the second DCI come from different TRPs.
  • S202 The terminal receives N channel measurement reference signal configuration information.
  • the N channel measurement reference signal configuration information comes from different TRPs.
  • the N channel measurement reference signal configuration information may include the first channel measurement reference signal configuration information and/or the second channel measurement reference signal configuration information. Wherein, the first channel measurement reference signal configuration information is different from the second channel measurement reference signal configuration.
  • channel measurement reference signal configuration information can refer to step S101.
  • the terminal determines the OFDM symbols occupied by the first DMRS and the OFDM symbols occupied by the second DMRS in the first time unit according to the N channel measurement reference signal configuration information.
  • the first DMRS and the second DMRS do not occupy the OFDM symbols occupied by the channel measurement reference signal indicated by the channel measurement reference signal configuration information.
  • the target time slot can be any time slot in the time domain, which is not limited.
  • step S203 in combination with different situations of N channel measurement reference signal configuration information.
  • the terminal determines the OFDM occupied by the first DMRS in the first time unit according to the first channel measurement reference signal configuration information Symbol, and the OFDM symbol occupied by the second DMRS.
  • the first DMRS and the second DMRS do not occupy the OFDM symbols occupied by the channel measurement reference signal indicated by the first channel measurement reference signal configuration information.
  • the terminal determines the OFDM occupied by the first DMRS in the first time unit according to the second channel measurement reference signal configuration information Symbol, and the OFDM symbol occupied by the second DMRS.
  • neither the first DMRS nor the second DMRS occupy the OFDM symbols occupied by the channel measurement reference signal indicated by the second channel measurement reference signal configuration information.
  • the terminal uses the first channel measurement reference signal configuration information and the second channel measurement With reference to the signal configuration information, determine the OFDM symbol occupied by the first DMRS and the OFDM symbol occupied by the second DMRS in the first time unit.
  • the first DMRS and the second DMRS do not occupy the OFDM symbols occupied by the channel measurement reference signal indicated by the first channel measurement reference signal configuration information; and, the first DMRS and the second DMRS None of the DMRS occupies the OFDM symbols occupied by the channel measurement reference signal indicated by the second channel measurement reference signal configuration information.
  • the method for determining the OFDM symbol occupied by the first DMRS and the OFDM symbol occupied by the second OFDM symbol can refer to the foregoing step S102, which is not repeated here.
  • the OFDM symbols occupied by the first DMRS are determined according to the N channel measurement reference signal configuration information
  • the OFDM symbols occupied by the second DMRS are determined according to N channel measurement reference signal configuration information is determined. Therefore, the OFDM symbol occupied by the first DMRS and the OFDM symbol occupied by the second DMRS are the same, that is, the first DMRS and the second DMRS are aligned in the time domain, thereby avoiding data on the first DMRS and the second PDSCH The mutual interference between the second DMRS and the data on the first PDSCH.
  • TRP1 schedules PDSCH#1, TRP#2 schedules PDSCH#2, and the symbol lengths of PDSCH#1 and PDSCH#2 are both 13 or 14.
  • PDSCH#1 corresponds to DMRS#1, and PDSCH2#2 corresponds to DMRS#2.
  • the number of additional DMRS is 1.
  • the terminal receives the configuration information of CRS#1 issued by TRP#1, and the terminal receives the configuration information of CRS#2 issued by TRP#2.
  • the configuration information of CRS#1 indicates that CRS#1 occupies OFDM symbol #0, OFDM symbol #4, OFDM symbol #7, and OFDM symbol #11 in slot #1.
  • the configuration information of CRS#2 indicates that CRS#1 occupies OFDM symbol #0, OFDM symbol #4, OFDM symbol #7, and OFDM symbol #11 in slot #2.
  • the OFDM symbol occupied by DMRS#1 is determined according to the configuration information of CRS#1 and the configuration information of CRS#2
  • the OFDM symbol occupied by DMRS#2 is determined according to the configuration information of CRS#1 and the configuration information of CRS#2. determine. Therefore, in order to avoid occupying the OFDM symbol occupied by CRS#1, DMRS#1 and DMRS#2 both occupy OFDM symbol #12 in slot #1, and neither DMRS#1 nor DMRS#2 occupy slot #1. OFDM symbol #11 in. It can be seen that, compared with the prior art, the technical solution of the embodiment of the present application can ensure that when different TRPs schedule PDSCHs in the same time unit, the DMRS of different TRPs are aligned in the time domain.
  • one or more channel measurement reference signal configuration information in the N channel measurement reference signal configuration information is associated with the first control resource set; and/or, one or more channel measurement reference signal configuration information is associated with the first DMRS occupation CDM group.
  • the RE occupied by the channel measurement reference signal indicated by the one or more channel measurement reference signal configuration information associated with the first control resource set may be referred to as the first RE for short; one or more associated with the CDM group occupied by the first DMRS
  • the RE occupied by the channel measurement reference signal indicated by the channel measurement reference signal configuration information may be referred to as the second RE for short.
  • the first PDSCH is not mapped on the first RE and/or the second RE.
  • the terminal can determine the position of the RE used for the first PDSCH mapping in the time-frequency resource of the first PDSCH according to the position of the first RE and/or the second RE.
  • the first set of control resources does not occupy the first RE and/or the second RE.
  • the position of the RE occupied by the first control resource set does not overlap with the position of the first RE and/or the second RE.
  • the terminal can determine whether to detect DCI on the first control resource set according to the location of the first RE and/or the second RE. Specifically, if the location of the RE occupied by the first control resource set overlaps with the location of the first RE and/or the second RE, the terminal does not detect the first DCI on the first control resource set; if the first control resource set is occupied If there is no overlap between the location of the RE and the location of the first RE and/or the second RE, the terminal detects the first DCI on the first control resource set.
  • one or more channel measurement reference signal configuration information in the N channel measurement reference signal configuration information is associated with the second control resource set; and/or, one or more channel measurement reference signal configuration information is associated with the second DMRS occupation CDM group.
  • the RE occupied by the channel measurement reference signal indicated by the one or more channel measurement reference signal configuration information associated with the second control resource set may be referred to as the third RE for short; one or more associated with the CDM group occupied by the second DMRS
  • the RE occupied by the channel measurement reference signal indicated by the channel measurement reference signal configuration information may be referred to as the fourth RE for short.
  • the second PDSCH is not mapped on the third RE and/or the fourth RE.
  • the terminal can determine the position of the RE used for the second PDSCH mapping in the time-frequency resource of the second PDSCH according to the position of the third RE and/or the fourth RE.
  • the second control resource set does not occupy the third RE and/or the fourth RE.
  • the position of the RE occupied by the first control resource set does not overlap with the position of the third RE and/or the fourth RE.
  • the terminal can determine whether to detect DCI on the second control resource set according to the location of the third RE and/or the fourth RE. Specifically, if the position of the RE occupied by the second control resource set overlaps with the position of the third RE and/or the fourth RE, the terminal does not detect the second DCI on the second control resource set; if the second control resource set is occupied If the location of the RE does not overlap with the location of the third RE and/or the fourth RE, the terminal detects the second DCI on the second control resource set.
  • the one or more channel measurement reference signal configuration information associated with the first control resource set is different from the one or more channel measurement reference signal configuration information associated with the second control resource set.
  • the one or more channel measurement reference signal configuration information associated with the first control resource set is the same as the one or more channel measurement reference signal configuration information associated with the second control resource set.
  • the configuration information of one or more channel measurement reference signals associated with the CDM group occupied by the first DMRS is different from the configuration information of one or more channel measurement reference signals associated with the CDM group occupied by the second DMRS.
  • the one or more channel measurement reference signal configuration information associated with the CDM group occupied by the first DMRS is the same as the one or more channel measurement reference signal configuration information associated with the CDM group occupied by the second DMRS.
  • each network element such as a terminal and a network device, in order to implement the above-mentioned functions, includes a corresponding hardware structure or software module for performing each function, or a combination of the two.
  • the present application can be implemented in the form of hardware or a combination of hardware and computer software. Whether a certain function is executed by hardware or computer software-driven hardware depends on the specific application and design constraint conditions of the technical solution. Professionals and technicians can use different methods for each specific application to implement the described functions, but such implementation should not be considered beyond the scope of this application.
  • each functional module can be divided corresponding to each function, or two or more functions can be integrated into one processing module.
  • the above-mentioned integrated modules can be implemented in the form of hardware or software functional modules. It should be noted that the division of modules in the embodiments of the present application is illustrative, and is only a logical function division, and there may be other division methods in actual implementation. The following is an example of dividing each function module corresponding to each function:
  • FIG. 11 is a schematic structural diagram of a communication device provided by an embodiment of the application.
  • the communication device includes a processing module 201 and a communication module 202.
  • the processing module 201 is used to support the communication device to perform step S102 in FIG. 9, step S203 in FIG. 10, and/or other processes used to support the technical solutions described herein.
  • the communication module 202 is used to support the communication device to perform step S101 in FIG. 9, steps S201 and S202 in FIG. 10, and/or other processes used to support the technical solutions described herein.
  • the communication module 202 in FIG. 11 may be implemented by the communication interface 104 in FIG. 8, and the processing module 201 in FIG. 11 may be implemented by the processor 101 in FIG.
  • the embodiments of this application do not impose any restriction on this.
  • FIG. 12 is a schematic structural diagram of a communication device provided by an embodiment of this application.
  • the communication device includes a processing module 301 and a communication module 302.
  • the processing module 301 is used to support the communication device to perform step S202 in FIG. 9 and/or used to support other processes of the technical solutions described herein.
  • the communication module 302 is used to support the communication device to perform step S201 in FIG. 9 and/or used to support other processes of the technical solutions described herein.
  • the communication module 302 in FIG. 12 may be implemented by the communication interface 104 in FIG. 8, and the processing module 301 in FIG. 12 may be implemented by the processor 101 in FIG.
  • the embodiments of this application do not impose any restriction on this.
  • the embodiments of the present application also provide a computer-readable storage medium in which computer instructions are stored; when the computer-readable storage medium runs on a communication device, the communication device is caused to execute as shown in FIG. 9 And the method shown in Figure 10.
  • the computer instructions may be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium.
  • the computer instructions may be transmitted from a website, computer, server, or data center. Transmission to another website, computer, server or data center via wired (such as coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (such as infrared, wireless, microwave, etc.).
  • the computer-readable storage medium may be any available medium that can be accessed by a computer or includes one or more data storage devices such as servers, data centers, etc. that can be integrated with the medium.
  • the usable medium may be a magnetic medium (for example, a floppy disk, a hard disk, and a magnetic tape), an optical medium, or a semiconductor medium (for example, a solid state disk (SSD)).
  • the embodiment of the present application also provides a computer program product containing computer instructions, which when running on a communication device, enables the communication device to execute the methods shown in FIG. 9 and FIG. 10.
  • FIG. 13 is a schematic structural diagram of a chip provided by an embodiment of the application.
  • the chip shown in FIG. 13 may be a general-purpose processor or a dedicated processor.
  • the chip includes a processor 401.
  • the processor 401 is used to support the communication device to execute the technical solutions shown in FIG. 9 and FIG. 10.
  • the chip further includes a transceiving pin 402, which is used to receive control of the processor 401 and used to support the communication device to execute the technical solutions shown in FIG. 9 and FIG. 10.
  • the chip shown in FIG. 13 may further include: a storage medium 403.
  • the chip shown in Figure 13 can be implemented using the following circuits or devices: one or more field programmable gate arrays (FPGA), programmable logic devices (PLD) , Controllers, state machines, gate logic, discrete hardware components, any other suitable circuits, or any combination of circuits capable of performing the various functions described throughout this application.
  • FPGA field programmable gate arrays
  • PLD programmable logic devices
  • Controllers state machines
  • gate logic discrete hardware components
  • discrete hardware components any other suitable circuits, or any combination of circuits capable of performing the various functions described throughout this application.
  • the terminals, network equipment, computer storage media, computer program products, and chips provided in the above embodiments of this application are all used to execute the methods provided above. Therefore, the beneficial effects that can be achieved can refer to the corresponding methods provided above. The beneficial effects of this will not be repeated here.

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Abstract

本申请提供一种资源确定方法及装置，涉及通信技术领域，用于在多个TRP独立配置信道测量参考信号配置信息的场景下，保证多个TRP独立调度的PDSCH对应的DMRS在时域上对齐，从而提高终端基于DMRS的信道估计性能。该方法包括：终端接收N个信道测量参考信号配置信息，信道测量参考信号配置信息用于指示一个载波/服务小区/部分带宽的信道测量参考信号所占用的时域资源，N为正整数；之后，终端根据N个信道测量参考信号配置信息，确定第一时间单元中DMRS占用的OFDM符号。

Description

资源确定方法及装置
本申请要求于2019年06月25日提交国家知识产权局、申请号为201910557346.4、申请名称为“资源确定方法及装置”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及通信技术领域，尤其涉及资源确定方法及装置。
背景技术
为了获得更高的频谱利用率，通信系统一般采用同频组网的方式。也即，网络中的多个小区可以部署在同一频段。这样一来，当用户处于服务小区的边缘时，用户可能会受到服务小区的邻小区的同频干扰，严重限制了边缘用户的服务质量和吞吐量。因此，为了解决小区之间的干扰问题，协助多点(Coordinated Multi-Point，CoMP)传输技术得到广泛的应用。协助多点传输技术具体是指，多个传输点(transmission reception point，TRP)协同参与为一个终端传输数据，或者多个TRP联合接收一个终端发送的数据。基于多个TRP之间的信息交互时延，CoMP传输可以分为理想回传(ideal backhaul，IB)以及非理想回传(non-ideal backhaul，NIB)。在NIB场景下，由于多个TRP之间的信息交互时延较大，因此为了保证通信系统的性能，引入了多个TRP分别独立下发下行控制信息(downlink control information，DCI)以独立调度终端的物理下行共享信道(physical downlink shared channel，PDSCH)、解调参考信号(demodulation reference signal，DMRS)的机制。
当前，在CoMP传输场景下，协作集中的多个TRP可能均为LTE基站和NR基站共站的配置。这种情况下，每个TRP会分别配置小区特定参考信号(cell-specific reference signal，CRS)配置信息，以指示该TRP的CRS占用的时频资源。为避免LTE CRS对NR PDSCH对应的DMRS产生干扰，一个TRP独立调度的PDSCH对应的DMRS在时域上可能为了躲避该TRP的CRS占用的正交频分复用(orthogonal frequency division multiplexing，OFDM)符号而发生迁移。由于不同TRP独立配置的CRS配置信息不同，导致不同TRP调度的PDSCH对应的DMRS在时域上不对齐。若多个TRP调度的PDSCH在时频资源上重叠时，两个PDSCH对应的DMRS在时域上不对齐会使得一个PDSCH与另一个PDSCH的DMRS之间相互干扰，从而影响到终端基于DMRS的信道估计性能。
发明内容
本申请提供一种资源确定方法及装置，用于保证多个TRP独立调度的PDSCH对应的DMRS在时域上对齐。
第一方面，提供一种资源确定方法，包括：终端接收N个信道测量参考信号配置信息，信道测量参考信号配置信息用于指示一个载波(component carrier，CC)/服务小区(serving cell)/部分带宽(bandwidth part，BWP)上的信道测量参考信号所占用的资源，信道测量参考信号所占用的资源包括时域资源，N为正整数；终端根据N个 信道测量参考信号配置信息，确定第一时间单元中DMRS占用的OFDM符号。
其中，信道测量参考信号为CRS，或者为信道状态信息参考信号(channel state information reference signal，CSI-RS)，或者为同步信号块(synchronization signal block，SSB)，或者为速率匹配资源(rate matching resource，RMR)。
基于上述技术方案，对于参与协作传输的多个TRP中的任意一个TRP来说，该TRP的DMRS在第一时间单元内占用的OFDM符号是根据N个信道测量参考信号配置信息来确定的，而不是仅根据该TRP的信道测量参考信号配置信息确定的。也即一个TRP的DMRS占用的OFDM符号会考虑其他TRP的信道测量参考信号配置信息的影响，从而保证该TRP的DMRS占用的OFDM符号与其他TRP的DMRS占用的OFDM符号相同，保证终端基于DMRS的信道估计性能。
一种可能的设计中，在信道测量参考信号配置信息用于指示信道测量参考信号占用的时频资源的情况下，信道测量参考信号配置信息可以包括以下信息中的至少一项:时域的周期和偏移量，一个时隙或者子帧内占用的OFDM符号数量和/或位置，占用的RB的数量和/或位置，一个RB内占用的子载波(subcarrier)数量和/或位置，资源单元(resource element，RE)的数量和/或位置。
一种可能的设计中，信道测量参考信号所占用的时频资源包括OFDM符号，DMRS占用的任意OFDM符号与N个信道测量参考信号配置信息所指示的信道测量参考信号占用的任意OFDM符号不重叠，其中，OFDM符号指的是在某一个特定的时隙或者子帧内的OFDM符号。这样一来，避免DMRS与信道测量参考信号之间互相干扰。
一种可能的设计中，若N个信道测量参考信号配置信息中至少一个信道测量参考信号配置信息所指示的信道测量参考信号占用的OFDM符号包括第一OFDM符号，则DMRS占用的OFDM符号不包括第一OFDM符号，DMRS占用的OFDM符号包括第二OFDM符号。
一种可能的设计中，若N个信道测量参考信号配置信息所指示的信道测量参考信号占用的OFDM符号不包括第一OFDM符号，则DMRS占用的OFDM符号包括第一OFDM符号，DMRS占用的OFDM符号不包括第二OFDM符号。
一种可能的设计中，第一OFDM符号和第二OFDM符号是DMRS对应的PDSCH的起始OFDM符号之外的OFDM符号。具体的，若DMRS占用连续OFDM符号数量为1，也即DMRS为单符号DMRS，则第一OFDM符号和第二OFDM符号是PDSCH的时域资源中第一个OFDM符号之外的OFDM符号，若DMRS占用连续OFDM符号数量为2，也即DMRS为双符号DMRS，则第一OFDM符号和第二OFDM符号是PDSCH的时域资源中第一个OFDM符号和第二个OFDM符号之外的OFDM符号。
一种可能的设计中，若DMRS对应的PDSCH在一个时隙或者子帧中占用的OFDM符号数量大于等于11，则第一OFDM符号和第二OFDM符号是PDSCH的时域资源中最后的两个OFDM符号。
一种可能的设计中，第一时间单元为DMRS对应的PDSCH所在的时隙，第一OFDM符号为第一时间单元的第12个OFDM符号，第二OFDM符号为第一时间单元的第13个OFDM符号。
一种可能的设计中，第一时间单元为DMRS对应的PDSCH所在的时隙，第一 OFDM符号为第一时间单元的第8个OFDM符号，第二OFDM符号为第一时间单元的第9个OFDM符号，或者，第二OFDM符号为第一时间单元的第7个OFDM符号。
一种可能的设计中，N个信道测量参考信号配置信息中的一个或多个信道测量参考信号配置信息与控制资源集合关联，控制资源集合用于承载DCI，DCI用于调度上述DMRS对应的PDSCH；和/或，N个信道测量参考信号配置信息中的一个或多个信道测量参考信号配置信息关联所述DMRS占用的码分复用CDM组。
一种可能的设计中，所述一个或多个信道测量参考信号配置信息所指示的信道测量参考信号所占用的资源包括多个RE，DMRS对应的PDSCH不在所述一个或多个信道测量参考信号配置信息所指示的信道测量参考信号占用的RE上映射。这样一来，避免PDSCH与信道测量参考信号之间的互相干扰。
一种可能的设计中，所述一个或多个信道测量参考信号配置信息所指示的信道测量参考信号所占用的资源包括多个RE，上述控制资源集合占用的RE的位置与所述一个或多个信道测量参考信号配置信息所指示的信道测量参考信号占用的RE的位置不重叠。这样一来，提高控制资源集合的监测可靠性。
一种可能的设计中，DMRS对应的PDSCH不在第一子集中的信道测量参考信号配置信息所指示的信道测量参考信号所占用的RE上映射；和/或，控制资源集合占用的RE的位置与第二子集中的信道测量参考信号配置信息所指示的信道测量参考信号所占用的RE的位置不重叠。其中，第一子集包括N个信道测量参考信号配置信息中的一个或多个信道测量参考信号配置信息。第二子集包括N个信道测量参考信号配置信息中的一个或多个信道测量参考信号配置信息。可以理解的是，第一子集和第二子集可以相同，也可以不相同。
一种可能的设计中，该方法还包括：终端接收第一DCI和第二DCI，第一DCI用于调度第一PDSCH，第二DCI用于调度第二PDSCH，第一PDSCH的DMRS为第一DMRS，第二PDSCH的DMRS为第二DMRS，第一DCI承载于第一控制资源集合中，第二DCI承载于第二控制资源集合中，第一控制资源集合和第二控制资源集合属于不同的控制资源集合组。终端根据N个信道测量参考信号配置信息，确定第一时间单元中DMRS占用的OFDM符号，包括：终端根据N个信道测量参考信号配置信息，确定第一时间单元中第一DMRS占用的OFDM符号，和第二DMRS占用的OFDM符号。
一种可能的设计中，该方法还包括：终端接收第一DCI和第二DCI，第一DCI用于调度第一时间单元的第一PDSCH，第二DCI用于调度第一时间单元的第二PDSCH，第一PDSCH的DMRS为第一DMRS，第二PDSCH的DMRS为第二DMRS，第一DCI承载于第一控制资源集合中，第二DCI承载于第二控制资源集合中。终端根据N个信道测量参考信号配置信息，确定第一时间单元中DMRS占用的OFDM符号，包括：终端根据N个信道测量参考信号配置信息，确定第一时间单元中第一DMRS占用的OFDM符号，和第二DMRS占用的OFDM符号。
一种可能的设计中，第一DMRS和第二DMRS均不占用N个信道测量参考信号配置信息所指示的信道测量参考信号占用的OFDM符号。例如，当N个信道测量参考信号配置信息中至少一个信道测量参考信号配置信息指示目标时隙中的第12个OFDM符号，则在目标时隙中，第一DMRS和第二DMRS均不占用目标时隙中的第 12个OFDM符号符号，占用目标时隙中的第13个OFDM符号。目标时隙可以是时域上的任意一个时隙，对此不作限定。
具体的，在N个信道测量参考信号配置信息包括第一信道测量参考信号配置信息和第二信道测量参考信号配置信息的情况下，第一DMRS和第二DMRS均不占用第一信道测量参考信号配置信息所指示的信道测量参考信号占用的OFDM符号，以及，第一DMRS和第二DMRS均不占用第二信道测量参考信号配置信息所指示的信道测量参考信号占用的OFDM符号。
一种可能的设计中，N个信道测量参考信号配置信息中的一个或多个信道测量参考信号配置信息关联第一控制资源集合；和/或，一个或多个信道测量参考信号配置信息关联第一DMRS占用的CDM组。其中，第一控制资源集合关联的一个或多个信道测量参考信号配置信息所指示的信道测量参考信号占用的RE可以简称为第一RE；第一DMRS占用的CDM组所关联的一个或多个信道测量参考信号配置信息所指示的信道测量参考信号占用的RE可以简称为第二RE。
一种可能的设计中，第一PDSCH不在第一RE和/或第二RE上映射。这样一来，终端可以根据第一RE和/或第二RE的位置，确定第一PDSCH的时频资源中用于第一PDSCH映射的RE的位置。
一种可能的设计中，第一控制资源集合不占用第一RE和/或第二RE。或者说，第一控制资源集合占用的RE的位置与第一RE和/或第二RE的位置不重叠。这样一来，终端可以根据第一RE和/或第二RE的位置，确定是否在第一控制资源集合上检测DCI。具体的，若第一控制资源集合占用的RE的位置与第一RE和/或第二RE的位置存在重叠，则终端不在第一控制资源集合上检测第一DCI；若第一控制资源集合占用的RE的位置与第一RE和/或第二RE的位置不存在重叠，则终端在第一控制资源集合上检测第一DCI。
一种可能的设计中，N个信道测量参考信号配置信息中的一个或多个信道测量参考信号配置信息关联第二控制资源集合；和/或，一个或多个信道测量参考信号配置信息关联第二DMRS占用的CDM组。其中，第二控制资源集合关联的一个或多个信道测量参考信号配置信息所指示的信道测量参考信号占用的RE可以简称为第三RE；第二DMRS占用的CDM组所关联的一个或多个信道测量参考信号配置信息所指示的信道测量参考信号占用的RE可以简称为第四RE。
一种可能的设计中，第二PDSCH不在第三RE和/或第四RE上映射。这样一来，终端可以根据第三RE和/或第四RE的位置，确定第二PDSCH的时频资源中用于第二PDSCH映射的RE的位置。
一种可能的设计中，第二控制资源集合不占用第三RE和/或第四RE。或者说，第一控制资源集合占用的RE的位置与第三RE和/或第四RE的位置不重叠。这样一来，终端可以根据第三RE和/或第四RE的位置，确定是否在第二控制资源集合上检测DCI。具体的，若第二控制资源集合占用的RE的位置与第三RE和/或第四RE的位置存在重叠，则终端不在第二控制资源集合上检测第二DCI；若第二控制资源集合占用的RE的位置与第三RE和/或第四RE的位置不存在重叠，则终端在第二控制资源集合上检测第二DCI。
其中，第一控制资源集合关联的一个或者多个信道测量参考信号配置信息和第二控制资源集合关联的一个或者多个信道测量参考信号配置信息不同。或者，第一控制资源集合关联的一个或者多个信道测量参考信号配置信息和第二控制资源集合关联的一个或者多个信道测量参考信号配置信息相同。
其中，第一DMRS占用的CDM组所关联的一个或多个信道测量参考信号配置信息与第二DMRS占用的CDM组所关联的一个或多个信道测量参考信号配置信息不同。第一DMRS占用的CDM组所关联的一个或多个信道测量参考信号配置信息与第二DMRS占用的CDM组所关联的一个或多个信道测量参考信号配置信息相同。
一种可能的设计中，第一PDSCH的QCL信息不同于第二PDSCH的QCL信息。
一种可能的设计中，第一DMRS占用的CDM组与第二DMRS占用的CDM组不相同。
一种可能的设计中，第一PDSCH占用的时域资源和第二PDSCH占用的时域位置存在部分重叠/完全重叠。
一种可能的设计中，第一PDSCH和第二PDSCH位于相同的BWP/CC内。
一种可能的设计中，第一控制资源集合和第二控制资源集合位于相同的BWP/CC内。
一种可能的设计中，第一控制资源集合的QCL信息不同于第二控制资源集合的QCL信息。
一种可能的设计中，第一控制资源集合对应的PUCCH资源集合不同于第二控制资源集合对应的PUCCH资源集合，或者，第一DCI中PUCCH资源选择字段对应的PUCCH候选资源池和第二DCI中PUCCH资源选择字段对应的PUCCH候选资源池不同。
一种可能的设计中，第一控制资源集合对应的PDSCH配置参数集合不同于第二控制资源集合对应的PDSCH配置参数集合。
一种可能的设计中，第一控制资源集合和第二控制资源集合对应的候选混合自动重传请求(Hybrid Automatic Repeat Request，HARQ)进程(process)的候选不同。
一种可能的设计中，所述N个信道测量参考信号配置信息中每一个信道测量参考信号配置信息所指示的信道测量参考信号所占用的时域位置相同，时域位置包括时隙的位置，以及时隙中信道测量参考信号所占用的OFDM符号的位置。这样一来，对于任一个TRP调度的PDSCH对应的DMRS，终端可以根据N个信道测量参考信号配置信息中的一个信道测量参考信号配置信息，确定第一时间单元中DMRS占用的OFDM符号。
第二方面，提供一种资源确定方法，包括：网络设备获取N个信道测量参考信号配置信息，信道测量参考信号配置信息用于指示一个载波/服务小区/部分带宽上的信道测量参考信号所占用的资源，所述信道测量参考信号所占用的资源包括时域资源，N为正整数；网络设备根据N个信道测量参考信号配置信息，确定第一时间单元中DMRS占用的OFDM符号。
基于上述技术方案，对于参与协作传输的多个TRP中的任意一个TRP来说，该TRP的DMRS在第一时间单元内占用的OFDM符号是根据N个信道测量参考信号配 置信息来确定的，而不是仅根据该TRP的信道测量参考信号配置信息确定的。也即一个TRP的DMRS占用的OFDM符号会考虑其他TRP的信道测量参考信号配置信息的影响，从而保证该TRP的DMRS占用的OFDM符号与其他TRP的DMRS占用的OFDM符号相同，保证终端基于DMRS的信道估计性能。
一种可能的设计中，在信道测量参考信号配置信息用于指示信道测量参考信号占用的时频资源的情况下，信道测量参考信号配置信息可以包括以下至少一项：时域的周期和偏移量，一个时隙或者子帧内占用的OFDM符号的数量和/或位置，占用的RB的数量和/或位置，一个RB内占用的子载波的数量和/或位置，RE的数量和/或位置。
一种可能的设计中，信道测量参考信号的时频资源包括OFDM符号；所述DMRS占用的任意OFDM符号与N个信道测量参考信号配置信息所指示的信道测量参考信号占用的任意OFDM符号不重叠，其中，OFDM符号指的是在某一个特定的时隙或者子帧内的OFDM符号。
一种可能的设计中，若N个信道测量参考信号配置信息中至少一个信道测量参考信号配置信息所指示的信道测量参考信号占用的OFDM符号包括第一OFDM符号，则DMRS占用的OFDM符号不包括第一OFDM符号，DMRS占用的OFDM符号包括第二OFDM符号。
一种可能的设计中，若N个信道测量参考信号配置信息所指示的信道测量参考信号占用的OFDM符号不包括第一OFDM符号，则DMRS占用的OFDM符号包括第一OFDM符号，DMRS占用的OFDM符号不包括第二OFDM符号。
一种可能的设计中，第一OFDM符号和第二OFDM符号是DMRS对应的PDSCH的起始OFDM符号之外的OFDM符号。具体的，若DMRS占用连续OFDM符号数量为1，也即DMRS为单符号DMRS，则第一OFDM符号和第二OFDM符号是PDSCH的时域资源中第一个OFDM符号之外的OFDM符号，若DMRS占用连续OFDM符号数量为2，也即DMRS为双符号DMRS，则第一OFDM符号和第二OFDM符号是PDSCH的时域资源中第一个OFDM符号和第二个OFDM符号之外的OFDM符号。
一种可能的设计中，PDSCH在一个时隙或者子帧中占用的OFDM符号数量大于11。第一OFDM符号和第二OFDM符号是PDSCH的时域资源中最后的两个OFDM符号。
一种可能的设计中，第一时间单元为DMRS对应的PDSCH所在的时隙，第一OFDM符号为第一时间单元的第12个OFDM符号，第二OFDM符号为第一时间单元的第13个OFDM符号。
一种可能的设计中，第一时间单元为DMRS对应的PDSCH所在的时隙，第一OFDM符号为第一时间单元的第8个OFDM符号，第二OFDM符号为第一时间单元的第9个OFDM符号，或者，第二OFDM符号为第一时间单元的第7个OFDM符号。
一种可能的设计中，N个信道测量参考信号配置信息中的一个或多个信道测量参考信号配置信息与控制资源集合关联，控制资源集合用于承载DCI，DCI用于调度上述DMRS对应的PDSCH；和/或，N个信道测量参考信号配置信息中的一个或多个信道测量参考信号配置信息关联所述DMRS占用的码分复用CDM组。
一种可能的设计中，所述一个或多个信道测量参考信号配置信息所指示的信道测 量参考信号所占用的资源包括多个RE，DMRS对应的PDSCH不在所述一个或多个信道测量参考信号配置信息所指示的信道测量参考信号占用的RE上映射。
一种可能的设计中，所述一个或多个信道测量参考信号配置信息所指示的信道测量参考信号所占用的资源包括多个RE，上述控制资源集合占用的RE的位置与所述一个或多个信道测量参考信号配置信息所指示的信道测量参考信号占用的RE的位置不重叠。
一种可能的设计中，DMRS对应的PDSCH不在第一子集中的信道测量参考信号配置信息所指示的信道测量参考信号所占用的RE上映射；和/或，控制资源集合占用的RE的位置与第二子集中的信道测量参考信号配置信息所指示的信道测量参考信号所占用的RE的位置不重叠。其中，第一子集包括N个信道测量参考信号配置信息中的一个或多个信道测量参考信号配置信息。第二子集包括N个信道测量参考信号配置信息中的一个或多个信道测量参考信号配置信息。可以理解的是，第一子集和第二子集可以相同，也可以不相同。
一种可能的设计中，所述N个信道测量参考信号配置信息中每一个信道测量参考信号配置信息所指示的信道测量参考信号所占用的时域位置相同，时域位置包括时隙的位置，以及时隙中信道测量参考信号所占用的OFDM符号的位置。
第三方面，提供一种通信装置，包括：通信模块，接收N个信道测量参考信号配置信息，信道测量参考信号配置信息用于指示一个载波/服务小区/部分带宽上的信道测量参考信号所占用的资源，所述信道测量参考信号所占用的资源包括时域资源，N为正整数；处理模块，根据N个信道测量参考信号配置信息，确定第一时间单元中DMRS占用的OFDM符号。
一种可能的设计中，在信道测量参考信号配置信息用于指示信道测量参考信号占用的时频资源的情况下，信道测量参考信号配置信息可以包括以下至少一项：时域的周期和偏移量，一个时隙或者子帧内占用的OFDM符号的数量和/或位置，占用的RB的数量和/或位置，一个RB内占用的子载波的数量和/或位置，RE的数量和/或位置。
一种可能的设计中，信道测量参考信号所占用的时频资源包括OFDM符号，DMRS占用的任意OFDM符号与N个信道测量参考信号配置信息所指示的信道测量参考信号占用的任意OFDM符号不重叠，其中，OFDM符号指的是在某一个特定的时隙或者子帧内的OFDM符号。
一种可能的设计中，若N个信道测量参考信号配置信息中至少一个信道测量参考信号配置信息所指示的信道测量参考信号占用的OFDM符号包括第一OFDM符号，则DMRS占用的OFDM符号不包括第一OFDM符号，DMRS占用的OFDM符号包括第二OFDM符号。
一种可能的设计中，若N个信道测量参考信号配置信息所指示的信道测量参考信号占用的OFDM符号不包括第一OFDM符号，则DMRS占用的OFDM符号包括第一OFDM符号，DMRS占用的OFDM符号不包括第二OFDM符号。
一种可能的设计中，第一OFDM符号和第二OFDM符号是DMRS对应的PDSCH的起始OFDM符号之外的OFDM符号。具体的，若DMRS占用连续OFDM符号数量为1，也即DMRS为单符号DMRS，则第一OFDM符号和第二OFDM符号是PDSCH 的时域资源中第一个OFDM符号之外的OFDM符号，若DMRS占用连续OFDM符号数量为2，也即DMRS为双符号DMRS，则第一OFDM符号和第二OFDM符号是PDSCH的时域资源中第一个OFDM符号和第二个OFDM符号之外的OFDM符号。
一种可能的设计中，PDSCH在一个时隙或者子帧中占用的OFDM符号数量大于11。第一OFDM符号和第二OFDM符号是PDSCH的时域资源中最后的两个OFDM符号。
一种可能的设计中，第一时间单元为DMRS对应的PDSCH所在的时隙，第一OFDM符号为第一时间单元的第12个OFDM符号，第二OFDM符号为第一时间单元的第13个OFDM符号。
一种可能的设计中，第一时间单元为DMRS对应的PDSCH所在的时隙，第一OFDM符号为第一时间单元的第8个OFDM符号，第二OFDM符号为第一时间单元的第9个OFDM符号，或者，第二OFDM符号为第一时间单元的第7个OFDM符号。
一种可能的设计中，N个信道测量参考信号配置信息中的一个或多个信道测量参考信号配置信息与控制资源集合关联，控制资源集合用于承载DCI，DCI用于调度上述DMRS对应的PDSCH；和/或，N个信道测量参考信号配置信息中的一个或多个信道测量参考信号配置信息关联所述DMRS占用的码分复用CDM组。
一种可能的设计中，所述一个或多个信道测量参考信号配置信息所指示的信道测量参考信号所占用的资源包括多个RE，DMRS对应的PDSCH不在所述一个或多个信道测量参考信号配置信息所指示的信道测量参考信号占用的RE上映射。
一种可能的设计中，所述一个或多个信道测量参考信号配置信息所指示的信道测量参考信号所占用的资源包括多个RE，上述控制资源集合占用的RE的位置与所述一个或多个信道测量参考信号配置信息所指示的信道测量参考信号占用的RE的位置不重叠。
一种可能的设计中，DMRS对应的PDSCH不在第一子集中的信道测量参考信号配置信息所指示的信道测量参考信号所占用的RE上映射；和/或，控制资源集合占用的RE的位置与第二子集中的信道测量参考信号配置信息所指示的信道测量参考信号所占用的RE的位置不重叠。其中，第一子集包括N个信道测量参考信号配置信息中的一个或多个信道测量参考信号配置信息。第二子集包括N个信道测量参考信号配置信息中的一个或多个信道测量参考信号配置信息。可以理解的是，第一子集和第二子集可以相同，也可以不相同。
一种可能的设计中，通信模块，还用于接收第一DCI和第二DCI，第一DCI用于调度第一PDSCH，第二DCI用于调度第二PDSCH，第一PDSCH的DMRS为第一DMRS，第二PDSCH的DMRS为第二DMRS，第一DCI承载于第一控制资源集合中，第二DCI承载于第二控制资源集合中，第一控制资源集合和第二控制资源集合属于不同的控制资源集合组。处理模块，用于根据N个信道测量参考信号配置信息，确定第一时间单元中DMRS占用的OFDM符号，包括：根据N个信道测量参考信号配置信息，确定第一时间单元中第一DMRS占用的OFDM符号，和第二DMRS占用的OFDM符号。
一种可能的设计中，通信模块，还用于接收第一DCI和第二DCI，第一DCI用于 调度第一时间单元的第一PDSCH，第二DCI用于调度第一时间单元的第二PDSCH，第一PDSCH的DMRS为第一DMRS，第二PDSCH的DMRS为第二DMRS，第一DCI承载于第一控制资源集合中，第二DCI承载于第二控制资源集合中。处理模块，用于根据N个信道测量参考信号配置信息，确定第一时间单元中DMRS占用的OFDM符号，包括：根据N个信道测量参考信号配置信息，确定第一时间单元中第一DMRS占用的OFDM符号，和第二DMRS占用的OFDM符号。
一种可能的设计中，第一DMRS和第二DMRS均不占用N个信道测量参考信号配置信息所指示的信道测量参考信号占用的OFDM符号。例如，当N个信道测量参考信号配置信息中至少一个信道测量参考信号配置信息指示目标时隙中的第12个OFDM符号，则在目标时隙中，第一DMRS和第二DMRS均不占用目标时隙中的第12个OFDM符号符号，占用目标时隙中的第13个OFDM符号。目标时隙可以是时域上的任意一个时隙，对此不作限定。
具体的，在N个信道测量参考信号配置信息包括第一信道测量参考信号配置信息和第二信道测量参考信号配置信息的情况下，第一DMRS和第二DMRS均不占用第一信道测量参考信号配置信息所指示的信道测量参考信号占用的OFDM符号，以及，第一DMRS和第二DMRS均不占用第二信道测量参考信号配置信息所指示的信道测量参考信号占用的OFDM符号。
一种可能的设计中，N个信道测量参考信号配置信息中的一个或多个信道测量参考信号配置信息关联第一控制资源集合；和/或，一个或多个信道测量参考信号配置信息关联第一DMRS占用的CDM组。其中，第一控制资源集合关联的一个或多个信道测量参考信号配置信息所指示的信道测量参考信号占用的RE可以简称为第一RE；第一DMRS占用的CDM组所关联的一个或多个信道测量参考信号配置信息所指示的信道测量参考信号占用的RE可以简称为第二RE。
一种可能的设计中，第一PDSCH不在第一RE和/或第二RE上映射。这样一来，终端可以根据第一RE和/或第二RE的位置，确定第一PDSCH的时频资源中用于第一PDSCH映射的RE的位置。
一种可能的设计中，第一控制资源集合不占用第一RE和/或第二RE。或者说，第一控制资源集合占用的RE的位置与第一RE和/或第二RE的位置不重叠。这样一来，终端可以根据第一RE和/或第二RE的位置，确定是否在第一控制资源集合上检测DCI。具体的，若第一控制资源集合占用的RE的位置与第一RE和/或第二RE的位置存在重叠，则终端不在第一控制资源集合上检测第一DCI；若第一控制资源集合占用的RE的位置与第一RE和/或第二RE的位置不存在重叠，则终端在第一控制资源集合上检测第一DCI。
一种可能的设计中，N个信道测量参考信号配置信息中的一个或多个信道测量参考信号配置信息关联第二控制资源集合；和/或，一个或多个信道测量参考信号配置信息关联第二DMRS占用的CDM组。其中，第二控制资源集合关联的一个或多个信道测量参考信号配置信息所指示的信道测量参考信号占用的RE可以简称为第三RE；第二DMRS占用的CDM组所关联的一个或多个信道测量参考信号配置信息所指示的信道测量参考信号占用的RE可以简称为第四RE。
一种可能的设计中，第二PDSCH不在第三RE和/或第四RE上映射。这样一来，终端可以根据第三RE和/或第四RE的位置，确定第二PDSCH的时频资源中用于第二PDSCH映射的RE的位置。
一种可能的设计中，第二控制资源集合不占用第三RE和/或第四RE。或者说，第一控制资源集合占用的RE的位置与第三RE和/或第四RE的位置不重叠。这样一来，终端可以根据第三RE和/或第四RE的位置，确定是否在第二控制资源集合上检测DCI。具体的，若第二控制资源集合占用的RE的位置与第三RE和/或第四RE的位置存在重叠，则终端不在第二控制资源集合上检测第二DCI；若第二控制资源集合占用的RE的位置与第三RE和/或第四RE的位置不存在重叠，则终端在第二控制资源集合上检测第二DCI。
其中，第一控制资源集合关联的一个或者多个信道测量参考信号配置信息和第二控制资源集合关联的一个或者多个信道测量参考信号配置信息不同。或者，第一控制资源集合关联的一个或者多个信道测量参考信号配置信息和第二控制资源集合关联的一个或者多个信道测量参考信号配置信息相同。
其中，第一DMRS占用的CDM组所关联的一个或多个信道测量参考信号配置信息与第二DMRS占用的CDM组所关联的一个或多个信道测量参考信号配置信息不同。第一DMRS占用的CDM组所关联的一个或多个信道测量参考信号配置信息与第二DMRS占用的CDM组所关联的一个或多个信道测量参考信号配置信息相同。
一种可能的设计中，第一PDSCH的QCL信息不同于第二PDSCH的QCL信息。
一种可能的设计中，第一DMRS占用的CDM组与第二DMRS占用的CDM组不相同。
一种可能的设计中，第一PDSCH占用的时域资源和第二PDSCH占用的时域位置存在部分重叠/完全重叠。
一种可能的设计中，第一PDSCH和第二PDSCH位于相同的BWP/CC内。
一种可能的设计中，第一控制资源集合和第二控制资源集合位于相同的BWP/CC内。
一种可能的设计中，第一控制资源集合的QCL信息不同于第二控制资源集合的QCL信息。
一种可能的设计中，第一控制资源集合对应的PUCCH资源集合不同于第二控制资源集合对应的PUCCH资源集合，或者，第一DCI中PUCCH资源选择字段对应的PUCCH候选资源池和第二DCI中PUCCH资源选择字段对应的PUCCH候选资源池不同。
一种可能的设计中，第一控制资源集合对应的PDSCH配置参数集合不同于第二控制资源集合对应的PDSCH配置参数集合。
一种可能的设计中，第一控制资源集合和第二控制资源集合对应的候选混合自动重传请求进程的候选不同。
一种可能的设计中，所述N个信道测量参考信号配置信息中每一个信道测量参考信号配置信息所指示的信道测量参考信号所占用的时域位置相同，时域位置包括时隙的位置，以及时隙中信道测量参考信号所占用的OFDM符号的位置。
第四方面，提供一种通信装置，包括：通信模块，用于获取N个信道测量参考信号配置信息，信道测量参考信号配置信息用于指示一个载波/服务小区/部分带宽上的信道测量参考信号所占用的资源，所述信道测量参考信号所占用的资源包括时域资源，N为正整数。处理模块，用于根据N个信道测量参考信号配置信息，确定第一时间单元中DMRS占用的OFDM符号。
一种可能的设计中，在信道测量参考信号配置信息用于指示信道测量参考信号占用的时频资源的情况下，信道测量参考信号配置信息可以包括以下至少一项：时域的周期和偏移量，一个时隙或者子帧内占用的OFDM符号的数量和/或位置，占用的RB的数量和/或位置，一个RB内占用的子载波的数量和/或位置，RE的数量和/或位置。
一种可能的设计中，信道测量参考信号的时频资源包括OFDM符号；所述DMRS占用的任意OFDM符号与N个信道测量参考信号配置信息所指示的信道测量参考信号占用的任意OFDM符号不重叠，其中，OFDM符号指的是在某一个特定的时隙或者子帧内的OFDM符号。
一种可能的设计中，若N个信道测量参考信号配置信息中至少一个信道测量参考信号配置信息所指示的信道测量参考信号占用的OFDM符号包括第一OFDM符号，则DMRS占用的OFDM符号不包括第一OFDM符号，DMRS占用的OFDM符号包括第二OFDM符号。
一种可能的设计中，若N个信道测量参考信号配置信息所指示的FDM符号不包括第一OFDM符号，则DMRS占用的OFDM符号包括第一OFDM符号，DMRS占用的OFDM符号不包括第二OFDM符号。
一种可能的设计中，第一OFDM符号和第二OFDM符号是DMRS对应的PDSCH的起始OFDM符号之外的OFDM符号。具体的，若DMRS占用连续OFDM符号数量为1，也即DMRS为单符号DMRS，则第一OFDM符号和第二OFDM符号是PDSCH的时域资源中第一个OFDM符号之外的OFDM符号，若DMRS占用连续OFDM符号数量为2，也即DMRS为双符号DMRS，则第一OFDM符号和第二OFDM符号是PDSCH的时域资源中第一个OFDM符号和第二个OFDM符号之外的OFDM符号。
一种可能的设计中，PDSCH在一个时隙或者子帧中占用的OFDM符号数量大于11。第一OFDM符号和第二OFDM符号是PDSCH的时域资源中最后的两个OFDM符号。
一种可能的设计中，第一时间单元为DMRS对应的PDSCH所在的时隙，第一OFDM符号为第一时间单元的第12个OFDM符号，第二OFDM符号为第一时间单元的第13个OFDM符号。
一种可能的设计中，第一时间单元为DMRS对应的PDSCH所在的时隙，第一OFDM符号为第一时间单元的第8个OFDM符号，第二OFDM符号为第一时间单元的第9个OFDM符号，或者，第二OFDM符号为第一时间单元的第7个OFDM符号。
一种可能的设计中，N个信道测量参考信号配置信息中的一个或多个信道测量参考信号配置信息与控制资源集合关联，控制资源集合用于承载DCI，DCI用于调度上述DMRS对应的PDSCH；和/或，N个信道测量参考信号配置信息中的一个或多个信道测量参考信号配置信息关联所述DMRS占用的码分复用CDM组。
一种可能的设计中，所述一个或多个信道测量参考信号配置信息所指示的信道测量参考信号所占用的资源包括多个RE，DMRS对应的PDSCH不在所述一个或多个信道测量参考信号配置信息所指示的信道测量参考信号占用的RE上映射。
一种可能的设计中，所述一个或多个信道测量参考信号配置信息所指示的信道测量参考信号所占用的资源包括多个RE，上述控制资源集合占用的RE的位置与所述一个或多个信道测量参考信号配置信息所指示的信道测量参考信号占用的RE的位置不重叠。
一种可能的设计中，DMRS对应的PDSCH不在第一子集中的信道测量参考信号配置信息所指示的信道测量参考信号所占用的RE上映射；和/或，控制资源集合占用的RE的位置与第二子集中的信道测量参考信号配置信息所指示的信道测量参考信号所占用的RE的位置不重叠。
其中，第一子集包括N个信道测量参考信号配置信息中的一个或多个信道测量参考信号配置信息。第二子集包括N个信道测量参考信号配置信息中的一个或多个信道测量参考信号配置信息。可以理解的是，第一子集和第二子集可以相同，也可以不相同。
一种可能的设计中，所述N个信道测量参考信号配置信息中每一个信道测量参考信号配置信息所指示的信道测量参考信号所占用的时域位置相同，时域位置包括时隙的位置，以及时隙中信道测量参考信号所占用的OFDM符号的位置。
第五方面，提供一种通信装置，包括：处理器和存储器，所述存储器和所述处理器耦合，所述存储器存储有指令，当所述处理器执行所述指令时，使得所述通信装置执行上述第一方面或第二方面中任一种设计所涉及的资源确定方法。可选的，该通信装置还可以包括通信接口，所述通信接口用于该通信装置与其他设备进行通信，示例性的，通信接口可以是收发器、电路、总线、模块或其他类型的通信接口。
第六方面，提供一种计算机可读存储介质，该计算机可读存储介质中存储有指令，当其在计算机上运行时，可以使得计算机执行上述第一方面或第二方面中任一种设计所涉及的资源确定方法。
第七方面，提供一种包含指令的计算机程序产品，当其在计算机上运行时，使得计算机可以执行上述第一方面或第二方面中任一种设计所涉及的资源确定方法。
第八方面，提供一种芯片，该芯片包括处理器，当该处理器执行指令时，处理器用于执行上述第一方面或第二方面中任一种设计所涉及的资源确定方法。该指令可以来自芯片内部的存储器，也可以来自芯片外部的存储器。可选的，该芯片还包括输入输出电路。
第九方面，提供一种系统，该系统包括至少一个执行上述第一方面中任一种设计所涉及的资源确定方法的通信装置和至少一个执行上述第二方面中任一种设计所涉及的资源确定方法的通信装置。
其中，第三方面至第八方面中任一种设计所带来的技术效果可参见上文中对应的方法所带来的技术效果。
附图说明
图1为本申请实施例提供的一种DMRS的位置的示意图；
图2为本申请实施例提供的另一种DMRS的位置的示意图；
图3为本申请实施例提供的另一种DMRS的位置的示意图；
图4为本申请实施例提供的一种CRS的资源图样的示意图；
图5为本申请实施例提供的另一种CRS的资源图样的示意图；
图6为本申请实施例提供的另一种CRS的资源图样的示意图；
图7为本申请实施例提供的一种通信系统的架构示意图；
图8为本申请实施例提供的一种通信装置的结构示意图；
图9为本申请实施例提供的一种资源确定方法的流程图；
图10为本申请实施例提供的一种资源确定方法的流程图；
图11为本申请实施例提供的一种通信装置的结构示意图；
图12为本申请实施例提供的一种通信装置的结构示意图；
图13为本申请实施例提供的一种芯片的结构示意图。
具体实施方式
在本申请的描述中，除非另有说明，“/”表示“或”的意思，例如，A/B可以表示A或B。本文中的“和/或”仅仅是一种描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B这三种情况。此外，“至少一个”是指一个或多个，“多个”是指两个或两个以上。“第一”、“第二”等字样并不对数量和执行次序进行限定，并且“第一”、“第二”等字样也并不限定一定不同。
需要说明的是，本申请中，“示例性的”或者“例如”等词用于表示作例子、例证或说明。本申请中被描述为“示例性的”或者“例如”的任何实施例或设计方案不应被解释为比其他实施例或设计方案更优选或更具优势。确切而言，使用“示例性的”或者“例如”等词旨在以具体方式呈现相关概念。
为了便于理解本申请的技术方案，下面先对本申请所涉及的术语进行简单介绍。
1、时隙
在NR中，对于常规(normal)循环前缀(cyclic prefix，CP)，1个时隙包含14个OFDM符号。对于扩展(extended)CP，1个时隙包含12个OFDM符号。
为了便于描述，在本申请实施例中，若未作出特别说明，1个时隙包含14个OFDM符号。另外，在一个时隙中，14个OFDM符号按时间顺序从前到后的顺序依次编号，时间最早的OFDM符号的编号为0，时间最晚的OFDM符号的编号为13。也就是说，一个时隙包含OFDM符号#0～OFDM符号#13。
2、子帧
在LTE中，子帧包括14个OFDM符号。在一个子帧中，14个OFDM符号按时间顺序从前到后的顺序依次编号，时间最早的OFDM符号的编号为0，时间最晚的OFDM符号的编号为13。也就是说，一个时隙包含OFDM符号#0～OFDM符号#13。
在NR网络和LTE网络采用相同的子载波间隔的情况下，NR中的时隙相当于LTE中的子帧。
3、准共址(Quasi-Co-Location，QCL)信息
QCL信息用于辅助描述终端接收侧波束赋形信息以及接收流程，表征了信道的大尺度特征，通常为长期观测值，还可以表征接收波束信息。具体的，现有标准中定义 了四种QCL信息的类型，分别为：
QCL types A：多普勒偏移(Doppler shift)、多普勒扩展(Doppler spread)、平均信道时延(Average delay)、时延扩展(Delay spread)；
QCL types B：Doppler shift、Doppler spread；
QCL types C：Average delay、Doppler shift；
QCL types D：空间接收参数(Spatial Rx parameter)。
PDSCH或者PDCCH的QCL信息通过建立PDSCH/PDCCH的DMRS与某一个参考信号资源之间的关联关系定义的，即PDSCH/PDCCH的QCL信息可以基于其DMRS所关联的参考信号的接收以及测量确定。例如，DMRS可以关联信道状态信息参考信号(Channel State Information Reference Signal，CSI-RS)，则终端用于接收CSI-RS的接收波束(QCL Type-D)可以作为接收DMRS的接收波束。
4、码分复用(code division multiplexing，CDM)组
CDM组包含多个天线端口，同一CDM组中的多个天线端口复用相同的时频资源，并且同一CDM组中的多个天线端口之间以码分的形式来区分，也即同一CDM中多个天线端口的序列的码域资源是不同的。所述码域资源通常是正交的码，例如正交覆盖码(orthogonal cover code，OCC)等。所述OCC码可用于时域、频域、空域(波束域)等。
5、控制资源集合(control resource set，CORESET)、控制资源集合组
控制资源集合用于指示物理下行控制信道(physical downlink control channel)PDCCH所在的时频资源，PDCCH用于承载DCI。换句话说，PDCCH所占的时频资源以CORESET为配置单位，表征了一次DCI检测周期内承载DCI的物理时频资源。通常，CORESET在时域上可以占用1-3个OFDM符号，在频域上以6RB为粒度指示占用的带宽，同时，CORESET中还会配置在该物理时频资源上接收DCI和相应DMRS采用的QCL假设。从终端的角度看，每个用于通信的CC以及BWP均会对应一个或者多个CORESET。
控制资源集合组可以包括一个或多个控制资源集合。
6、DMRS
终端可以基于DMRS执行信道估计，信道估计的结果可以用于接收和解调DMRS对应的PDSCH。DMRS会占用PDSCH中的部分OFDM符号。或者说，PDSCH中的部分OFDM符号用于承载DMRS。具体的，基站通过DCI调度PDSCH的时频资源，基站和终端会预先约定DMRS占用PDSCH中的那些时频资源位置，DCI中也会包括DMRS的位置信息，从而终端根据预先约定的PDSCH和DMRS占用时频资源的位置关系以及DCI中指示的DMRS位置信息最终确定DMRS占用的时频资源。DMRS包括两种类型，一种为单符号(single-symbol)DMRS，另一种为双符号(double-symbol)DMRS。单符号DMRS是指，DMRS连续占用的OFDM符号数量为1。双符号DMRS是指，DMRS连续占用的OFDM符号数量为2。下面以single-symbol DMRS为例进行介绍。
DMRS按照其占用的PDSCH中OFDM符号的位置，可分为前置DMRS(front-loaded DMRS)和额外的DMRS(additional DMRS)。
front-loaded DMRS占用PDSCH的第一个OFDM符号，终端根据DCI中指示的PDSCH的时域位置，可以确定PDSCH的第一个OFDM符号，从而可以确定front-loaded DMRS占用的OFDM符号位置。
当基站通过高层信令例如RRC信令配置存在additional DMRS时，PDSCH中才会包括additional DMRS，高层信令会同时指示additional DMRS的数量，例如数量可以为1、2、3等。additional DMRS占用的OFDM符号的位置根据RRC配置的additional DMRS的个数以及相应的PDSCH在一个时隙内的长度确定。其中，PDSCH在时隙内的长度即为PDSCH在一个时隙内占用的OFDM符号的个数。通常情况下，additional DMRS至少会占用PDSCH占用的OFDM符号中的最后两个OFDM符号中的至少一个，当additional DMRS数量为2或3时，除了上述OFDM符号位置，在front-loaded DMRS的OFDM符号位置和PDSCH尾部的OFDM符号位置之间还会进一步存在DMRS的OFDM符号位置。由于基于DMRS做信道估计外插滤波大于2个OFDM符号会导致信道估计的性能存在较大损失，则位于PDSCH尾部的DMRS比较重要，防止外插大于2个OFDM符号的情况出现。
示例性的，DMRS占用的OFDM符号的位置可以参考表1所示。
其中，对于PDSCH映射类型(mapping type)A，l d是时隙中第一个OFDM符号到PDSCH的时域资源中的最后一个OFDM符号之间的OFDM符号的个数。
l 0用于指示DMRS占用的第一个OFDM符号的位置。对于PDSCH mapping type A，l 0＝2或者3，l 0的参考点是时隙中的第一个OFDM符号。也即，当l 0＝2时，DMRS占用的第一个OFDM符号为时隙中的OFDM符号#2。当l 0＝3时，DMRS占用的第一个OFDM符号为时隙中的OFDM符号#3。
当l 0＝3时，在CRS配置参数已配置的情况下，且CRS配置参数指示CRS占用PDSCH所在时隙中的OFDM符号#11，l 1＝12。其他情况下，l 1＝11。
示例性的，当l 0＝3，l d＝12，l 1＝11时，DMRS的位置可以如图1所示。
示例性的，当l 0＝3，l d＝13，l 1＝11时，DMRS的位置可以如图2所示。
示例性的，当l 0＝3，l d＝14，l 1＝11时，DMRS的位置可以如图3所示。
表1
Figure PCTCN2020096199-appb-000001
Figure PCTCN2020096199-appb-000002
需要说明的是，在NIB场景下，由于两个基站分别调度的两个PDSCH占用的时频资源是实时确定的，所以可以理解的是，当两个PDSCH的DMRS均存在至少一个additional DMRS，则为了保证多个TRP的PDSCH上的DMRS在时域上对齐以确保DMRS做信道估计的性能，需要两个基站调度的PDSCH的时域位置有一些限定。具体的，若两个PDSCH调度在同一个时隙内，则若其中一个PDSCH的OFDM符号的个数为X，则另一个PDSCH的OFDM符号的个数也为X，且PDSCH在时域的起始位置要保持一致，才能使得两个PDSCH对应的DMRS(包括front-loaded DMRS和additional DMRS)占用的OFDM符号相同。可选的，X可以从12-14中选择。
7、PDSCH对应的DMRS、DMRS对应的PDSCH
PDSCH对应的DMRS是指用于解调该PDSCH的DMRS。PDSCH对应的DMRS所占用的OFDM符号位于该PDSCH的时域资源上。
DMRS对应的PDSCH是指以该DMRS进行解调的PDSCH。DMRS对应的PDSCH的时域资源包括该DMRS占用的OFDM符号。
8、CRS
在LTE中，CRS用于实现对下行物理信道进行信道估计从而解调数据信息，以及进行信道测量使终端获取CSI信息上报给基站等功能。CRS支持1、2、4个天线端口的配置。
如图4所示，为支持1个天线端口的CRS的资源图样。这种情况下，CRS占用子帧中的OFDM符号#0、OFDM符号#4、OFDM符号#7、以及OFDM符号#11。
如图5所示，为支持2个天线端口的CRS的资源图样。这种情况下，CRS占用子帧中的OFDM符号#0、OFDM符号#4、OFDM符号#7、以及OFDM符号#11。
如图6所示，为支持4个天线端口的CRS的资源图样。这种情况下，CRS占用子帧中的OFDM符号#0、OFDM符号#2、OFDM符号#4、OFDM符号#7、OFDM符号#8、以及OFDM符号#11。
以上是对本申请实施例涉及的技术术语的简单介绍，以下不再赘述。
当前，在CoMP场景下，若协作集中的多个TRP均为LTE和NR共站的配置，则多个TRP需要分别配置一套独立的CRS配置参数，比如不同的TRP可以配置CRS占用不同的时隙，和/或，配置CRS占用不同的OFDM符号，和/或，配置CRS占用不同的RB以及每个RB内的子载波。其中，不同的TRP独立配置CRS配置参数表征了不同的TRP对应的服务小区采用不同的CRS的时频资源图样。不同的CRS配置参数可以通过独立的RRC信令配置，也可以通过同一个RRC信令配置。比如，协作集中 的多个TRP中存在一个主TRP(master TRP)，则可以由主TRP向其他TRP发送RRC信令，以对其他TRP配置一套独立的CRS配置参数。
在多个TRP独立配置CRS配置参数的情况下，多个TRP独立调度的PDSCH对应的DMRS可能在时域上对齐。
下面以TRP#1和TRP#2形成协作集共同为一个终端服务进行举例说明，在时隙#1中，TPR1通过CORESET 1上下发的DCI调度PDSCH#1，TRP#2通过CORESET 2上下发的DCI调度PDSCH#2，PDSCH#1和PDSCH#2的OFDM符号长度均为13或者均为14。PDSCH#1的DMRS称为DMRS#1，PDSCH#2的DMRS称为DMRS#2。对于DMRS#1和DMRS#2来说，additional DMRS的个数为1。CRS#1的配置信息对应TRP#1发送CRS 1占用的时频资源，CRS#2的配置信息对应TRP#2发送CRS 2占用的时频资源。由于CRS#1的配置信息和CRS#2的配置信息是通过独立的RRC信令配置的，因此CRS#1的配置信息和CRS#2的配置信息可能不同。例如，假设CRS#1的配置信息指示CRS#1占用时隙#1中的OFDM符号#0、OFDM符号#4、OFDM符号#7以及OFDM符号#11，CRS#2的配置信息指示CRS#2占用时隙#2中的OFDM符号#0、OFDM符号#4、OFDM符号#7以及OFDM符号#11。在这种情况下，DMRS#1占用的OFDM符号根据CRS#1的配置信息确定，DMRS#2占用的OFDM符号根据CRS#2的配置信息确定。在时隙#1中，DMRS#1占用的OFDM符号需要避免CRS#1占用的OFDM符号，因此DMRS#1占用OFDM符号#12。在时隙1中，由于CRS#2不占用任何OFDM符号，因此DMRS#2可以占用OFDM符号#11。这样一来，DMRS#1和DMRS#2在时域上不对齐，从而影响终端基于DMRS的信道估计性能。
为了解决上述技术问题，本申请提供一种资源确定方法，该方法的具体描述可参见下文。
本申请实施例提供的技术方案可以应用于各种通信系统，例如，采用第五代(5th generation，5G)通信技术的新空口(new radio，NR)通信系统，未来演进系统或者多种通信融合系统等等。本申请提供的技术方案可以应用于多种应用场景，例如，机器对机器(machine to machine，M2M)、宏微通信、增强型移动互联网(enhanced mobile broadband，eMBB)、超高可靠超低时延通信(ultra-reliable&low latency communication，uRLLC)以及海量物联网通信(massive machine type communication，mMTC)等场景。这些场景可以包括但不限于：通信设备与通信设备之间的通信场景，网络设备与网络设备之间的通信场景，网络设备与通信设备之间的通信场景等。下文中均是以应用于网络设备和终端之间的通信场景中为例进行说明的。
此外，本申请实施例描述的网络架构以及业务场景是为了更加清楚的说明本申请实施例的技术方案，并不构成对于本申请实施例提供的技术方案的限定，本领域普通技术人员可知，随着网络架构的演变和新业务场景的出现，本申请实施例提供的技术方案对于类似的技术问题，同样适用。
图7示出了本申请提供的技术方案所适用的一种通信系统的架构示意图，通信系统可以包括多个网络设备(图7中仅示出了2个)以及一个或多个终端(图7中仅示出了1个)。如图7所示，两个网络设备可以同时与终端通信。
网络设备可以是无线通信的基站或基站控制器等。例如，所述基站可以包括各种 类型的基站，例如：微基站(也称为小站)，宏基站，中继站，接入点等，本申请实施例对此不作具体限定。在本申请实施例中，所述基站可以是全球移动通信系统(global system for mobile communications，GSM)，码分多址(code division multiple access，CDMA)中的基站(base transceiver station，BTS)，宽带码分多址(wideband code division multiple access，WCDMA)中的基站(node B)，长期演进(long term evolution，LTE)中的演进型基站(evolutional node B，eNB或e-NodeB)，物联网(internet of things，IoT)或者窄带物联网(narrow band-internet of things，NB-IoT)中的eNB，未来5G移动通信网络或者未来演进的公共陆地移动网络(public land mobile network，PLMN)中的基站，本申请实施例对此不作任何限制。本申请实施例中，用于实现网络设备的功能的装置可以是网络设备，也可以是能够支持网络设备实现该功能的装置，例如芯片系统。在本申请实施例中，以用于实现网络设备的功能的装置是网络设备为例，描述本申请实施例提供的技术方案。
本申请所说的网络设备，例如基站，通常包括基带单元(baseband unit，BBU)、射频拉远单元(remote radio unit，RRU)、天线、以及用于连接RRU和天线的馈线。其中，BBU用于负责信号调制。RRU用于负责射频处理。天线用于负责线缆上导行波和空气中空间波之间的转换。一方面，分布式基站大大缩短了RRU和天线之间馈线的长度，可以减少信号损耗，也可以降低馈线的成本。另一方面，RRU加天线比较小，可以随地安装，让网络规划更加灵活。除了RRU拉远之外，还可以把BBU全部都集中起来放置在中心机房(Central Office，CO)，通过这种集中化的方式，可以极大减少基站机房数量，减少配套设备，特别是空调的能耗，可以减少大量的碳排放。此外，分散的BBU集中起来变成BBU基带池之后，可以统一管理和调度，资源调配更加灵活。这种模式下，所有的实体基站演变成了虚拟基站。所有的虚拟基站在BBU基带池中共享用户的数据收发、信道质量等信息，相互协作，使得联合调度得以实现。
在一些部署中，基站可以包括集中式单元(centralized unit，CU)和分布式单元(Distributed Unit，DU)。基站还可以包括有源天线单元(active antenna unit，AAU)。CU实现基站的部分功能，DU实现基站的部分功能。比如，CU负责处理非实时协议和服务，实现无线资源控制(radio resource control，RRC)，分组数据汇聚层协议(packet data convergence protocol，PDCP)层的功能。DU负责处理物理层协议和实时服务，实现无线链路控制(radio link control，RLC)、媒体接入控制(media access control，MAC)和物理(physical，PHY)层的功能。AAU实现部分物理层处理功能、射频处理及有源天线的相关功能。由于RRC层的信息最终会变成PHY层的信息，或者，由PHY层的信息转变而来，因而，在这种架构下，高层信令，如RRC层信令或PDCP层信令，也可以认为是由DU发送的，或者，由DU+AAU发送的。可以理解的是，网络设备可以为包括CU节点、DU节点、AAU节点中一项或多项的设备。此外，CU可以划分为RAN中的网络设备，也可以将CU划分为核心网(core network，CN)中的网络设备，在此不做限制。
终端是一种具有无线收发功能的设备。终端可以被部署在陆地上，包括室内或室外、手持或车载；也可以被部署在水面上(如轮船等)；还可以被部署在空中(例如飞机、气球和卫星上等)。终端设备可以是用户设备(user equipment，UE)。其中， UE包括具有无线通信功能的手持式设备、车载设备、可穿戴设备或计算设备。示例性地，UE可以是手机(mobile phone)、平板电脑或带无线收发功能的电脑。终端设备还可以是虚拟现实(virtual reality，VR)终端设备、增强现实(augmented reality，AR)终端设备、工业控制中的无线终端、无人驾驶中的无线终端、远程医疗中的无线终端、智能电网中的无线终端、智慧城市(smart city)中的无线终端、智慧家庭(smart home)中的无线终端等等。本申请实施例中，用于实现终端的功能的装置可以是终端，也可以是能够支持终端实现该功能的装置，例如芯片系统。本申请实施例中，芯片系统可以由芯片构成，也可以包括芯片和其他分立器件。本申请实施例中，以用于实现终端的功能的装置是终端为例，描述本申请实施例提供的技术方案。
如图8所示，该通信装置包括：至少一个处理器101，通信线路102，存储器103以及至少一个通信接口104。
处理器101可以是一个通用中央处理器(central processing unit，CPU)，微处理器，特定应用集成电路(application-specific integrated circuit，ASIC)，或一个或多个用于控制本申请方案程序执行的集成电路。
通信线路102可包括一通路，在上述组件之间传送信息。
通信接口104，使用任何收发器一类的装置，用于与其他设备或通信网络通信，如以太网，RAN，无线局域网(wireless local area networks，WLAN)等。
存储器103可以是只读存储器(read-only memory，ROM)或可存储静态信息和指令的其他类型的静态存储设备，随机存取存储器(random access memory，RAM)或者可存储信息和指令的其他类型的动态存储设备，也可以是电可擦可编程只读存储器(electrically erasable programmable read-only memory，EEPROM)、只读光盘(compact disc read-only memory，CD-ROM)或其他光盘存储、光碟存储(包括压缩光碟、激光碟、光碟、数字通用光碟、蓝光光碟等)、磁盘存储介质或者其他磁存储设备、或者能够用于携带或存储具有指令或数据结构形式的期望的程序代码并能够由计算机存取的任何其他介质，但不限于此。存储器可以是独立存在，通过通信线路102与处理器相连接。存储器也可以和处理器集成在一起。本申请实施例提供的存储器通常可以具有非易失性。其中，存储器103用于存储执行本申请方案的计算机执行指令，并由处理器101来控制执行。处理器101用于执行存储器103中存储的计算机执行指令，从而实现本申请下述实施例提供的方法。
可选的，本申请实施例中的计算机执行指令也可以称之为应用程序代码，本申请实施例对此不作具体限定。
在具体实现中，作为一种实施例，处理器101可以包括一个或多个CPU，例如图8中的CPU0和CPU1。
在具体实现中，作为一种实施例，通信装置可以包括多个处理器，例如图8中的处理器101和处理器107。这些处理器中的每一个可以是一个单核(single-CPU)处理器，也可以是一个多核(multi-CPU)处理器。这里的处理器可以指一个或多个设备、电路、和/或用于处理数据(例如计算机程序指令)的处理核。
在具体实现中，作为一种实施例，通信装置还可以包括输出设备105和输入设备106。输出设备105和处理器101通信，可以以多种方式来显示信息。例如，输出设备 105可以是液晶显示器(liquid crystal display，LCD)，发光二级管(light emitting diode，LED)显示设备，阴极射线管(cathode ray tube，CRT)显示设备，或投影仪(projector)等。输入设备106和处理器101通信，可以以多种方式接收用户的输入。例如，输入设备106可以是鼠标、键盘、触摸屏设备或传感设备等。
下面结合说明书附图，对本申请实施例所提供的技术方案进行具体介绍。
如图9所示，为本申请实施例提供的一种资源确定方法，该方法包括以下步骤：
S101、通信装置获取N个信道测量参考信号配置信息。
其中，信道测量参考信号配置信息用于指示一个载波/服务小区/部分带宽上的信道测量参考信号所占用的资源。所述信道测量参考信号所占用的资源包括时频资源。
所述信道测量参考信号所占用的时频资源包括OFDM符号。或者，所述信道测量参考信号所占用的时频资源包括多个RE。
可选的，若信道测量参考信号配置信息用于指示信道测量参考信号所占用的时频资源，信道测量参考信号配置信息可以包括以下信息中的至少一项：时域的周期和偏移量，一个时隙/子帧内占用的OFDM符号的数量和/或位置，占用的RB的数量和/或位置，一个RB内占用的子载波的数量和/或位置，或者RE的数量和/或位置等。
可选的，信道测量参考信号可以包括CRS，CSI-RS，SSB，或者RMR中的一个。
上述N个信道测量参考信号配置信息可以与N个TRP一一对应。也即，所述N个信道测量参考信号配置信息可以为N个TRP独立配置。N为正整数。
在通信装置为参与协助传输中的多个TRP中的任意一个TRP的情况下，步骤S101可以具体实现为：TRP生成自身的信道测量参考信号配置信息，以及TRP从参与协助传输的其他TRP获取N-1个信道测量参考信号配置信息。或者，TRP通过其它网络设备(例如核心网、管理设备或者主TRP)获取到N个信道测量参考信号配置信息。
在通信装置为终端的情况下，步骤S101可以具体实现为：终端分别接收N个TRP中每一个TRP发送的信道测量参考信号配置信息。或者，终端接收N个TRP中的一个或多个TRP发送的信道测量参考信号配置信息，其中一个TRP可以发送多个信道测量参考信号配置信息。
可选的，N个信道测量参考信号配置信息可以是终端在同一时间单元上接收到的，也可以是终端在不同时间单元上分别接收到的。
S102、通信装置根据N个信道测量参考信号配置信息，确定第一时间单元内的DMRS占用的OFDM符号。
可选的，第一时间单元可以是DMRS对应的PDSCH所在的时隙，迷你时隙，子帧，或者传输时间间隔等，本发明不作限制。或者，第一时间单元可以是DMRS对应的PDSCH所占用的时域资源。可以理解的，DMRS对应的PDSCH，即使用该DMRS解调的PDSCH。因此，该DMRS也可以称为PDSCH的DMRS，或者PDSCH对应的DMRS。
作为一种实现方式，若N个信道测量参考信号配置信息中每一个信道测量参考信号配置信息所指示的信道测量参考信号所占用的时域位置相同，则通信装置可以根据N个信道测量参考信号配置信息中的一个信道测量参考信号配置信息，确定第一时间单元内的DMRS占用的OFDM符号。
作为另一种实现方式，若N个信道测量参考信号配置信息中至少两个信道测量参考信号配置信息所指示的信道测量参考信号所占用的时域位置不相同，则通信装置根据N个信道测量参考信号配置信息，确定第一时间单元内的DMRS占用的OFDM符号。
上述信道测量参考信号所占用的时域位置，包括：时隙的位置，以及时隙中信道测量参考信号所占用的OFDM符号的位置。
在本申请实施例中，在第一时间单元内，所述DMRS占用的任意OFDM符号与N个信道测量参考信号配置信息所指示的信道测量参考信号占用的任意OFDM符号不重叠，其中，OFDM符号指的是在某一个特定的时隙或者子帧内的OFDM符号。
需要说明的是，N个信道测量参考信号配置信息所指示的信道测量参考信号占用的OFDM符号，具体包括：N个信道测量参考信号配置信息中每一个信道测量参考信号配置信息所指示的信道测量参考信号占用的OFDM符号。
可选的，为了使得DMRS占用的OFDM符号与N个信道测量参考信号配置信息所指示的信道测量参考信号占用的OFDM符号不重叠，DMRS占用的OFDM符号满足以下规则：
规则一，若N个信道测量参考信号配置信息所指示的信道测量参考信号占用的OFDM符号不包括第一OFDM符号，则DMRS占用的OFDM符号包括第一OFDM符号，DMRS占用的OFDM符号不包括第二OFDM符号。
规则二，若N个信道测量参考信号配置信息所指示的信道测量参考信号占用的OFDM符号包括第一OFDM符号，则DMRS占用的OFDM符号不包括第一OFDM符号，DMRS占用的OFDM符号包括第二OFDM符号。
可以理解的是，第一OFDM符号与第二OFDM符号是同一个时隙或者子帧中不相同的两个OFDM符号。示例性的，第二OFDM符号可以是第一OFDM符号的前一位的OFDM符号，例如第一OFDM符号为OFDM符号#11，第二OFDM符号为OFDM符号#10。或者，第二OFDM符号可以是第一OFDM符号的后一位的OFDM符号，例如第一OFDM符号为OFDM符号#11，第二OFDM符号为OFDM符号#12。本申请实施例不对第一OFDM符号和第二OFDM符号之间的位置关系进行限定。
需要说明的是，第一OFDM符号的位置是对于信道估计而言最佳的位置。因此，在第一OFDM符号不用于承载CRS时，第一OFDM符号用于承载DMRS；但是，在第一OFDM符号用于承载CRS时，为了避免CRS和DMRS之间的冲突，第一OFDM符号不用于承载DMRS。这种情况下，DMRS从第一OFDM符号迁移到第二OFDM符号。
可选的，第一OFDM符号和第二OFDM符号是DMRS对应的PDSCH的起始OFDM符号之外的OFDM符号。具体的，若DMRS占用连续OFDM符号数量为1，也即DMRS为单符号DMRS，则第一OFDM符号和第二OFDM符号是PDSCH的时域资源中第一个OFDM符号之外的OFDM符号，若DMRS占用连续OFDM符号数量为2，也即DMRS为双符号DMRS，则第一OFDM符号和第二OFDM符号是PDSCH的时域资源中第一个OFDM符号和第二个OFDM符号之外的OFDM符号。
可选的，若DMRS对应的PDSCH在一个时隙或者子帧中占用的OFDM符号数量 大于等于11，则第一OFDM符号和第二OFDM符号是PDSCH的时域资源中最后的两个OFDM符号。
可选的，第一时间单元为DMRS对应的PDSCH所在的时隙，第一OFDM符号为第一时间单元的第12个OFDM符号，第二OFDM符号为第一时间单元的第13个OFDM符号。这种情况下，本申请实施例重新定义了表1中l 1的取值规则。也即，若N个信道测量参考信号配置信息所指示的信道测量参考信号占用的OFDM符号包括第一时间单元内的第12个OFDM符号，则l 1＝12；若N个信道测量参考信号配置信息所指示的信道测量参考信号占用的OFDM符号不包括第一时间单元内的第12个OFDM符号，则l 1＝11。
可选的，第一时间单元为DMRS对应的PDSCH所在的时隙，第一OFDM符号为第一时间单元的第8个OFDM符号，第二OFDM符号为第一时间单元的第9个OFDM符号，或者，第二OFDM符号为第一时间单元的第7个OFDM符号。
上述规则一和规则二可以适用于各种DMRS配置，例如additional DMRS的个数可以为1-4中任意一个。
可以理解的，在不矛盾的情况下，上述规则一和规则二可以单独实施，也可以一起实施，本申请不作限制。
可以理解的是，在通信装置为TRP的情况下，TRP在确定第一时间单元内的DMRS占用的OFDM符号之后，TRP可以在第一时间单元内传输PDSCH，以及在第一时间单元内的DMRS占用的OFDM符号上发送DMRS。
可以理解的是，在通信装置为终端的情况下，终端在确定第一时间单元内的DMRS占用的OFDM符号之后，终端可以在第一时间单元内DMRS占用的OFDM符号上接收DMRS。
基于图9所示的技术方案，对于参与协作传输的多个TRP中的任意一个TRP来说，该TRP的DMRS在第一时间单元内占用的OFDM符号是根据N个信道测量参考信号配置信息来确定的，而不是仅根据该TRP的信道测量参考信号配置信息确定的。也即一个TRP的DMRS占用的OFDM符号会考虑其他TRP的信道测量参考信号配置信息的影响，从而保证该TRP的DMRS占用的OFDM符号与其他TRP的DMRS占用的OFDM符号相同，保证终端基于DMRS的信道估计性能。
在本申请实施例中，N个信道测量参考信号配置信息中的一个或多个信道测量参考信号配置信息与控制资源集合关联，控制资源集合用于承载DCI，DCI用于调度上述DMRS对应的PDSCH；和/或，N个信道测量参考信号配置信息中的一个或多个信道测量参考信号配置信息关联所述DMRS占用的CDM组。
需要说明的是，信道测量参考信号配置信息与控制资源集合关联，是指信道测量参考信号配置信息与控制资源集合之间的关联关系。基于信道测量参考信号配置信息与控制资源集合之间的关联关系，基站或者终端能够确定一个信道测量参考信号配置信息所关联的控制资源集合，或者，基站或者终端能够确定一个控制资源集合所关联的信道测量参考信号配置信息。
上述信道测量参考信号配置信息与控制资源集合之间的关联关系，也可以称为信道测量参考信号配置信息与控制资源集合之间的对应关系，例如：信道测量参考信号 配置信息与控制资源集合之间一对一的对应关系，一对多的对应关系，或者多对一的对应关系，本申请实施例不限于此。
可选的，基于信道测量参考信号配置信息与控制资源集合之间的关联关系，对于一个控制资源集合来说，终端根据该控制资源集合所关联的信道测量参考信号配置信息，确定是否在该控制资源集合上检测DCI。具体的，若控制资源集合所占用的RE的位置与该控制资源集合所关联的信道测量参考信号配置信息所指示的信道测量参考信号所占用的RE的位置重叠，则终端不在该控制资源集合上检测DCI。反之，则终端在该控制资源集合上检测DCI。
可选的，基于信道测量参考信号配置信息与控制资源集合之间的关联关系，对于一个控制资源集合来说，基站根据该控制资源集合所关联的信道测量参考信号配置信息，确定该控制资源集合的资源配置，所述资源配置包括时频资源的配置。具体的，基站确定控制资源集合所占用的RE的位置与该控制资源集合所关联的信道测量参考信号配置信息所指示的信道测量参考信号所占用的RE的位置不重叠。
可选的，基于信道测量参考信号配置信息与控制资源集合之间的关联关系，对于一个控制资源集合来说，基站或者终端能够根据控制资源集合所关联的信道测量参考信号配置信息，确定目标PDSCH映射的RE，该目标PDSCH为该控制资源集合所承载的DCI调度的PDSCH。具体的，目标PDSCH不在该控制资源集合所关联的信道测量参考信号配置信息所指示的信道测量参考信号占用的RE上映射。也就是说，基站不在该控制资源集合关联的信道测量参考信号配置信息所指示的信道测量参考信号占用的RE上发送目标PDSCH。终端不在该控制资源集合关联的信道测量参考信号配置信息所指示的信道测量参考信号占用的RE上接收PDSCH。
需要说明的是，信道测量参考信号配置信息与CDM组关联，是指信道测量参考信号与CDM组之间具有关联关系。基于信道测量参考信号与CDM组之间的关联关系，基站或者终端能够确定一个信道测量参考信号配置信息所关联的CDM组，或者，基站或者终端能够确定一个CDM组所关联的信道测量参考信号配置信息。
上述信道测量参考信号配置信息与CDM组之间的关联关系，也可以称为信道测量参考信号配置信息与CDM组之间的对应关系，例如：信道测量参考信号配置信息与CDM组之间一对一的对应关系，一对多的对应关系，或者多对一的对应关系，本申请实施例不限于此。
可选的，基于信道测量参考信号配置信息与CDM组之间的关联关系，对于一个CDM组，基站或者终端能够根据该CDM组关联的信道测量参考信号配置信息，确定该CDM组对应的PDSCH映射的RE，该CDM组对应的PDSCH是指占用该CDM组的DMRS所对应的PDSCH。具体的，该CDM组对应的PDSCH不在该CDM组关联的信道测量参考信号配置信息所指示的信道测量参考信号占用的RE上映射。也就是说，基站不在该CDM组关联的信道测量参考信号配置信息所指示的信道测量参考信号占用的RE上发送该CDM组对应的PDSCH。终端不在该CDM组关联的信道测量参考信号配置信息所指示的信道测量参考信号占用的RE上接收该CDM组对应的PDSCH。
其中，信道测量参考信号配置信息可以包括控制资源集合的标识/索引值，以指示 该信道测量参考信号配置信息所关联的控制资源集合。和/或，信道测量参考信号配置信息可以包括CDM组的标识/索引值，以指示该信道测量参考信号配置所关联的CDM组。
或者，网络设备可以向终端发送指示信息，以指示信道测量参考信号配置信息所关联的控制资源集合，和/或信道测量参考信号配置信息所关联的CDM组。
在本申请实施例中，所述一个或多个信道测量参考信号配置信息所指示的信道测量参考信号所占用的资源包括多个RE。可以理解的，一个RE在时域上占用一个OFDM符号，频域上占用一个子载波。
可选的，DMRS对应的PDSCH不在所述一个或多个信道测量参考信号配置信息所指示的信道测量参考信号占用的RE上映射，以避免DMRS对应的PDSCH与CRS之间互相干扰。
可选的，控制资源集合占用的RE的位置与所述一个或多个信道测量参考信号配置信息所指示的信道测量参考信号占用的RE的位置不重叠。
上述控制资源集合占用的RE的位置具体是指，终端在监测控制资源集合时，需要监测的RE的位置。
在本申请实施例中，若一个控制资源集合占用的RE的位置与关联该控制资源集合的一个或多个信道测量参考信号配置信息所指示的信道测量参考信号占用的RE的位置重叠，则终端不监测该控制资源集合。
在本申请实施例中，DMRS对应的PDSCH不在第一子集中的信道测量参考信号配置信息所指示的信道测量参考信号所占用的RE上映射；和/或，控制资源集合占用的RE的位置与第二子集中的信道测量参考信号配置信息所指示的信道测量参考信号所占用的RE的位置不重叠。其中，第一子集包括N个信道测量参考信号配置信息中的一个或多个信道测量参考信号配置信息。第二子集包括N个信道测量参考信号配置信息中的一个或多个信道测量参考信号配置信息。可以理解的是，第一子集和第二子集可以相同，也可以不相同。
下面结合两个TRP进行协助传输的场景，对图9所示的实施例进行说明。
如图10所示，为本申请实施例提供的另一种资源确定方法，该方法包括以下步骤：
S201、终端接收第一DCI和第二DCI。
其中，第一DCI用于调度第一PDSCH，第二DCI用于调度第二PDSCH。
在本申请实施例中，第一DCI中PUCCH资源选择字段对应的PUCCH候选资源池和第二DCI中PUCCH资源选择字段对应的PUCCH候选资源池不同。
在本申请实施例中，第一PDSCH和第二PDSCH位于相同的BWP/CC中。第一PDSCH不同于第二PDSCH。具体的，第一PDSCH的QCL信息不同于第二PDSCH的QCL信息。
可选的，第一PDSCH占用的时域资源和第二PDSCH占用的时域位置存在部分重叠/完全重叠。
在本申请实施例中，第一PDSCH的DMRS称为第一DMRS，第二PDSCH的DMRS称为第二DMRS。其中，第一DMRS占用的CDM组不同于第二DMRS占用的CDM组。
在本申请实施例中，第一DCI承载于第一控制资源集合中，第二DCI承载于第二控制资源集合中。第一控制资源集合和第二控制资源集合位于相同的BWP/CC中。其中，第一控制资源集合不同于第二控制资源集合，至少包括以下情形之一：(1)第一控制资源集合的QCL信息不同于第二控制资源集合的QCL信息。(2)第一控制资源集合对应的PUCCH资源集合不同于第二控制资源集合对应的PUCCH资源集合。(3)第一控制资源集合对应的PDSCH配置参数集合不同于第二控制资源集合对应的PDSCH配置参数集合。(4)第一控制资源集合和第二控制资源集合对应的候选混合自动重传请求进程的候选不同。
作为一种实现方式，终端可以在同一时间单元上接收第一DCI和第二DCI；或者，终端在不同时间单元上分别接收第一DCI和第二DCI。
可选的，若第一DCI用于调度第一时间单元内的第一PDSCH，第二DCI用于调度第一时间单元内的第二PDSCH，终端可以获知第一DCI和第二DCI来自于不同的TRP。
可选的，若第一控制资源集合和第二控制资源集合属于不同的两个控制资源集合组，终端可以获知第一DCI和第二DCI来自于不同的TRP。
S202、终端接收N个信道测量参考信号配置信息。
其中，N个信道测量参考信号配置信息来自于不同的TRP。
在两个TRP协作传输的场景下，N个信道测量参考信号配置信息可以包括第一信道测量参考信号配置信息和/或第二信道测量参考信号配置信息。其中，第一信道测量参考信号配置信息不同于第二信道测量参考信号配置。
需要说明的是，信道测量参考信号配置信息的相关描述可以参考步骤S101。
S203、终端根据N个信道测量参考信号配置信息，确定第一时间单元中第一DMRS占用的OFDM符号，和第二DMRS占用的OFDM符号。
在本申请实施例中，第一DMRS和第二DMRS均不占用N个信道测量参考信号配置信息所指示的信道测量参考信号占用的OFDM符号。例如，当N个信道测量参考信号配置信息中至少一个信道测量参考信号配置信息指示目标时隙中的第12个OFDM符号，则在目标时隙中，第一DMRS和第二DMRS均不占用目标时隙中的第12个OFDM符号符号，占用目标时隙中的第13个OFDM符号。目标时隙可以是时域上的任意一个时隙，对此不作限定。
下面结合N个信道测量参考信号配置信息的不同情况，对步骤S203进行具体介绍。
(1)在N个信道测量参考信号配置信息仅包括第一信道测量参考信号配置信息的情况下，终端根据第一信道测量参考信号配置信息，确定第一时间单元中中第一DMRS占用的OFDM符号，和第二DMRS占用的OFDM符号。
需要说明的是，在第一时间单元中，第一DMRS和第二DMRS均不占用第一信道测量参考信号配置信息所指示的信道测量参考信号占用的OFDM符号。
(2)在N个信道测量参考信号配置信息仅包括第二信道测量参考信号配置信息的情况下，终端根据第二信道测量参考信号配置信息，确定第一时间单元中中第一DMRS占用的OFDM符号，和第二DMRS占用的OFDM符号。
也就是说，在第一时间单元中，第一DMRS和第二DMRS均不占用第二信道测量参考信号配置信息所指示的信道测量参考信号占用的OFDM符号。
(3)在N个信道测量参考信号配置信息仅包括第一信道测量参考信号配置信息和第二信道测量参考信号配置信息的情况下，终端根据第一信道测量参考信号配置信息和第二信道测量参考信号配置信息，确定第一时间单元中中第一DMRS占用的OFDM符号，和第二DMRS占用的OFDM符号。
需要说明的是，在第一时间单元中，第一DMRS和第二DMRS均不占用第一信道测量参考信号配置信息所指示的信道测量参考信号占用的OFDM符号；以及，第一DMRS和第二DMRS均不占用第二信道测量参考信号配置信息所指示的信道测量参考信号占用的OFDM符号。
可以理解的是，第一DMRS占用的OFDM符号，以及第二OFDM符号占用的OFDM符号的确定方式均可以参考上述步骤S102，在此不再赘述。
基于图10所示的技术方案，在两个TRP协作传输的场景下，由于第一DMRS占用的OFDM符号是根据N个信道测量参考信号配置信息来确定的，第二DMRS占用的OFDM符号是根据N个信道测量参考信号配置信息来确定的。从而，第一DMRS占用的OFDM符号和第二DMRS占用的OFDM符号是相同的，也即第一DMRS和第二DMRS在时域上是对齐的，从而避免第一DMRS与第二PDSCH上的数据之间的互相干扰，或者第二DMRS与第一PDSCH上的数据之间的互相干扰。
示例性的，在时隙#1中，TRP1调度PDSCH#1，TRP#2调度PDSCH#2，PDSCH#1和PDSCH#2的符号长度均为13或者14。PDSCH#1对应DMRS#1，PDSCH2#2对应DMRS#2。对于DMRS#1和DMRS#2来说，additional DMRS的个数为1。终端接收TRP#1下发的CRS#1的配置信息，以及终端接收TRP#2下发的CRS#2的配置信息。CRS#1的配置信息指示CRS#1占用时隙#1中的OFDM符号#0，OFDM符号#4，OFDM符号#7，OFDM符号#11。CRS#2的配置信息指示CRS#1占用时隙#2中的OFDM符号#0，OFDM符号#4，OFDM符号#7，OFDM符号#11。在这种情况下，DMRS#1占用的OFDM符号根据CRS#1的配置信息和CRS#2的配置信息确定，DMRS#2占用的OFDM符号根据CRS#1的配置信息和CRS#2的配置信息确定。因此，出于避免占用CRS#1占用的OFDM符号的考虑，DMRS#1和DMRS#2均占用时隙#1中的OFDM符号#12，DMRS#1和DMRS#2均不占用时隙#1中的OFDM符号#11。可见，相比于现有技术，本申请实施例的技术方案能够保证在不同TRP调度同一时间单元中的PDSCH的情况下，不同TRP的DMRS在时域上是对齐的。
可选的，N个信道测量参考信号配置信息中的一个或多个信道测量参考信号配置信息关联第一控制资源集合；和/或，一个或多个信道测量参考信号配置信息关联第一DMRS占用的CDM组。
其中，第一控制资源集合关联的一个或多个信道测量参考信号配置信息所指示的信道测量参考信号占用的RE可以简称为第一RE；第一DMRS占用的CDM组所关联的一个或多个信道测量参考信号配置信息所指示的信道测量参考信号占用的RE可以简称为第二RE。
可选的，第一PDSCH不在第一RE和/或第二RE上映射。这样一来，终端可以根 据第一RE和/或第二RE的位置，确定第一PDSCH的时频资源中用于第一PDSCH映射的RE的位置。
可选的，第一控制资源集合不占用第一RE和/或第二RE。或者说，第一控制资源集合占用的RE的位置与第一RE和/或第二RE的位置不重叠。这样一来，终端可以根据第一RE和/或第二RE的位置，确定是否在第一控制资源集合上检测DCI。具体的，若第一控制资源集合占用的RE的位置与第一RE和/或第二RE的位置存在重叠，则终端不在第一控制资源集合上检测第一DCI；若第一控制资源集合占用的RE的位置与第一RE和/或第二RE的位置不存在重叠，则终端在第一控制资源集合上检测第一DCI。
可选的，N个信道测量参考信号配置信息中的一个或多个信道测量参考信号配置信息关联第二控制资源集合；和/或，一个或多个信道测量参考信号配置信息关联第二DMRS占用的CDM组。
其中，第二控制资源集合关联的一个或多个信道测量参考信号配置信息所指示的信道测量参考信号占用的RE可以简称为第三RE；第二DMRS占用的CDM组所关联的一个或多个信道测量参考信号配置信息所指示的信道测量参考信号占用的RE可以简称为第四RE。
可选的，第二PDSCH不在第三RE和/或第四RE上映射。这样一来，终端可以根据第三RE和/或第四RE的位置，确定第二PDSCH的时频资源中用于第二PDSCH映射的RE的位置。
可选的，第二控制资源集合不占用第三RE和/或第四RE。或者说，第一控制资源集合占用的RE的位置与第三RE和/或第四RE的位置不重叠。这样一来，终端可以根据第三RE和/或第四RE的位置，确定是否在第二控制资源集合上检测DCI。具体的，若第二控制资源集合占用的RE的位置与第三RE和/或第四RE的位置存在重叠，则终端不在第二控制资源集合上检测第二DCI；若第二控制资源集合占用的RE的位置与第三RE和/或第四RE的位置不存在重叠，则终端在第二控制资源集合上检测第二DCI。
在本申请实施例中，第一控制资源集合关联的一个或者多个信道测量参考信号配置信息和第二控制资源集合关联的一个或者多个信道测量参考信号配置信息不同。或者，第一控制资源集合关联的一个或者多个信道测量参考信号配置信息和第二控制资源集合关联的一个或者多个信道测量参考信号配置信息相同。
在本申请实施例中，第一DMRS占用的CDM组所关联的一个或多个信道测量参考信号配置信息与第二DMRS占用的CDM组所关联的一个或多个信道测量参考信号配置信息不同。第一DMRS占用的CDM组所关联的一个或多个信道测量参考信号配置信息与第二DMRS占用的CDM组所关联的一个或多个信道测量参考信号配置信息相同。
上述主要从每一个网元之间交互的角度对本申请实施例提供的方案进行了介绍。可以理解的是，每一个网元，例如终端和网络设备，为了实现上述功能，其包含了执行每一个功能相应的硬件结构或软件模块，或两者结合。本领域技术人员应该很容易意识到，结合本文中所公开的实施例描述的各示例的单元及算法步骤，本申请能够以硬件或硬件和计算机软件的结合形式来实现。某个功能究竟以硬件还是计算机软件驱动硬件的方式来执行，取决于技术方案的特定应用和设计约束条件。专业技术人员可 以对每个特定的应用来使用不同方法来实现所描述的功能，但是这种实现不应认为超出本申请的范围。
本申请实施例可以根据上述方法示例对终端和网络设备进行功能模块的划分，例如，可以对应每一个功能划分每一个功能模块，也可以将两个或两个以上的功能集成在一个处理模块中。上述集成的模块既可以采用硬件的形式实现，也可以采用软件功能模块的形式实现。需要说明的是，本申请实施例中对模块的划分是示意性的，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式。下面以采用对应每一个功能划分每一个功能模块为例进行说明：
图11为本申请实施例提供的一种通信装置的结构示意图。如图11所示，通信装置包括处理模块201和通信模块202。其中，处理模块201用于支持通信装置执行图9中的步骤S102，图10中的步骤S203，和/或用于支持本文描述的技术方案的其他过程。通信模块202用于支持通信装置执行图9中的步骤S101，图10中的步骤S201和S202，和/或用于支持本文描述的技术方案的其他过程。
作为一个示例，结合图4所示的通信装置，图11中的通信模块202可以由图8中的通信接口104来实现，图11中的处理模块201可以由图8中的处理器101来实现，本申请实施例对此不作任何限制。
图12为本申请实施例提供的一种通信装置的结构示意图。如图12所示，通信装置包括处理模块301和通信模块302。其中，处理模块301用于支持通信装置执行图9中的步骤S202，和/或用于支持本文描述的技术方案的其他过程。通信模块302用于支持通信装置执行图9中的步骤S201，和/或用于支持本文描述的技术方案的其他过程。
作为一个示例，结合图8所示的通信装置，图12中的通信模块302可以由图8中的通信接口104来实现，图12中的处理模块301可以由图8中的处理器101来实现，本申请实施例对此不作任何限制。
本申请实施例还提供一种计算机可读存储介质，所述计算机可读存储介质中存储有计算机指令；当所述计算机可读存储介质在通信装置上运行时，使得该通信装置执行如图9和图10所示的方法。所述计算机指令可以存储在计算机可读存储介质中，或者从一个计算机可读存储介质向另一个计算机可读存储介质传输，例如，所述计算机指令可以从一个网站站点、计算机、服务器或者数据中心通过有线(例如同轴电缆、光纤、数字用户线(digital subscriber line，DSL))或无线(例如红外、无线、微波等)方式向另一个网站站点、计算机、服务器或数据中心进行传输。所述计算机可读存储介质可以是计算机能够存取的任何可用介质或者是包含一个或多个可以用介质集成的服务器、数据中心等数据存储设备。所述可用介质可以是磁性介质(例如，软盘、硬盘、磁带)，光介质、或者半导体介质(例如固态硬盘(solid state disk，SSD))等。
本申请实施例还提供了一种包含计算机指令的计算机程序产品，当其在通信装置上运行时，使得通信装置可以执行图9和图10所示的方法。
图13为本申请实施例提供的一种芯片的结构示意图。图13所示的芯片可以为通用处理器，也可以为专用处理器。该芯片包括处理器401。其中，处理器401用于支持通信装置执行图9和图10所示的技术方案。
可选的，该芯片还包括收发管脚402，收发管脚402用于接受处理器401的控制，用于支持通信装置执行图9和图10所示的技术方案。
可选的，图13所示的芯片还可以包括：存储介质403。
需要说明的是，图13所示的芯片可以使用下述电路或者器件来实现：一个或多个现场可编程门阵列(field programmable gate array，FPGA)、可编程逻辑器件(programmable logic device，PLD)、控制器、状态机、门逻辑、分立硬件部件、任何其他适合的电路、或者能够执行本申请通篇所描述的各种功能的电路的任意组合。
上述本申请实施例提供的终端、网络设备、计算机存储介质、计算机程序产品、芯片均用于执行上文所提供的方法，因此，其所能达到的有益效果可参考上文所提供的方法对应的有益效果，在此不再赘述。
尽管在此结合各实施例对本申请进行了描述，然而，本领域技术人员通过查看所述附图、公开内容、以及所附权利要求书，可理解并实现所述公开实施例的其他变化。在权利要求中，“包括”(comprising)一词不排除其他组成部分或步骤，“一”或“一个”不排除多个的情况。单个处理器或其他单元可以实现权利要求中列举的若干项功能。相互不同的从属权利要求中记载了某些措施，但这并不表示这些措施不能组合起来产生良好的效果。
尽管结合具体特征及其实施例对本申请进行了描述，显而易见的，在不脱离本申请的精神和范围的情况下，可对其进行各种修改和组合。相应地，本说明书和附图仅仅是所附权利要求所界定的本申请的示例性说明，且视为已覆盖本申请范围内的任意和所有修改、变化、组合或等同物。显然，本领域的技术人员可以对本申请进行各种改动和变型而不脱离本申请的精神和范围。这样，倘若本申请的这些修改和变型属于本申请权利要求及其等同技术的范围之内，则本申请也意图包含这些改动和变型在内。

Claims (46)

  1. 一种资源确定方法，其特征在于，所述方法包括：
    终端接收N个信道测量参考信号配置信息，所述信道测量参考信号配置信息用于指示一个载波/服务小区/部分带宽上的信道测量参考信号所占用的资源，所述信道测量参考信号所占用的资源包括时域资源，N为正整数；
    所述终端根据所述N个信道测量参考信号配置信息，确定第一时间单元中解调参考信号DMRS占用的正交频分复用OFDM符号。
  2. 根据权利要求1所述的资源确定方法，其特征在于，所述时域资源为OFDM符号，所述DMRS占用的任意OFDM符号与所述N个信道测量参考信号配置信息所指示的信道测量参考信号占用的任意OFDM符号不重叠。
  3. 根据权利要求1或2所述的资源确定方法，其特征在于，若所述N个信道测量参考信号配置信息中至少一个信道测量参考信号配置信息所指示的信道测量参考信号占用的OFDM符号包括第一OFDM符号，则所述DMRS占用的OFDM符号不包括所述第一OFDM符号，所述DMRS占用的OFDM符号包括第二OFDM符号。
  4. 根据权利要求1或2所述的资源确定方法，其特征在于，若所述N个信道测量参考信号配置信息所指示的信道测量参考信号占用的OFDM符号不包括第一OFDM符号，则所述DMRS占用的OFDM符号包括所述第一OFDM符号，所述DMRS占用的OFDM符号不包括第二OFDM符号。
  5. 根据权利要求3或4所述的资源确定方法，其特征在于，所述第一OFDM符号和所述第二OFDM符号是所述DMRS对应的物理下行共享信道PDSCH的起始OFDM符号之外的OFDM符号。
  6. 根据权利要求3至5任一项所述的资源确定方法，其特征在于，所述第一时间单元为所述DMRS对应的PDSCH所在的时隙，所述第一OFDM符号为所述时隙中的第12个OFDM符号，所述第二OFDM符号为所述时隙中的第13个OFDM符号。
  7. 根据权利要求1至6任一项所述的资源确定方法，其特征在于，
    所述N个信道测量参考信号配置信息中的一个或多个信道测量参考信号配置信息与控制资源集合关联，所述控制资源集合用于承载下行控制信息DCI，所述DCI用于调度所述DMRS对应的物理下行共享信道PDSCH；和/或，
    所述N个信道测量参考信号配置信息中的一个或多个信道测量参考信号配置信息关联所述DMRS占用的码分复用CDM组。
  8. 根据权利要求7所述的资源确定方法，其特征在于，所述一个或多个信道测量参考信号配置信息所指示的信道测量参考信号所占用的资源包括多个资源单元RE，所述DMRS对应的PDSCH不在所述一个或多个信道测量参考信号配置信息所指示的信道测量参考信号占用的RE上映射。
  9. 根据权利要求7或8所述的资源确定方法，其特征在于，所述一个或多个信道测量参考信号配置信息所指示的信道测量参考信号所占用的资源包括多个资源单元RE，所述控制资源集合占用的RE的位置与所述一个或多个信道测量参考信号配置信息所指示的信道测量参考信号占用的RE的位置不重叠。
  10. 根据权利要求1至9任一项所述的资源确定方法，其特征在于，所述方法还 包括：
    所述终端接收第一下行控制信息DCI和第二DCI，所述第一DCI用于调度第一物理下行共享信道PDSCH，所述第二DCI用于调度第二PDSCH，所述第一PDSCH的DMRS为第一DMRS，所述第二PDSCH的DMRS为第二DMRS，所述第一DCI承载于第一控制资源集合中，所述第二DCI承载于第二控制资源集合中，所述第一控制资源集合和所述第二控制资源集合属于不同的控制资源集合组；
    所述终端根据所述N个信道测量参考信号配置信息，确定第一时间单元中DMRS占用的OFDM符号，包括：
    所述终端根据所述N个信道测量参考信号配置信息，确定所述第一时间单元中所述第一DMRS占用的OFDM符号，和所述第二DMRS占用的OFDM符号。
  11. 根据权利要求10所述的方法，其特征在于，所述第一PDSCH不在第一RE映射，所述第二PDSCH不在第二RE映射，其中，所述第一RE为所述第一控制资源集合关联的一个或多个信道测量参考信号配置信息所指示的信道测量参考信号占用的RE，所述第二RE为所述第二控制资源集合关联的一个或多个信道测量参考信号配置信息所指示的信道测量参考信号占用的RE。
  12. 根据权利要求1至9任一项所述的资源确定方法，其特征在于，所述方法还包括：
    所述终端接收第一下行控制信息DCI和第二DCI，所述第一DCI用于调度所述第一时间单元的第一物理下行共享信道PDSCH，第二DCI用于调度所述第一时间单元的第二PDSCH，所述第一PDSCH的DMRS为第一DMRS，所述第二PDSCH的DMRS为第二DMRS，所述第一DCI承载于第一控制资源集合中，所述第二DCI承载于第二控制资源集合中；
    所述终端根据所述N个信道测量参考信号配置信息，确定第一时间单元中DMRS占用的OFDM符号，包括：
    所述终端根据所述N个信道测量参考信号配置信息，确定所述第一时间单元中所述第一DMRS占用的OFDM符号，和所述第二DMRS占用的OFDM符号。
  13. 一种资源确定方法，其特征在于，所述方法包括：
    网络设备获取N个信道测量参考信号配置信息，所述信道测量参考信号配置信息用于指示一个载波/服务小区/部分带宽上的信道测量参考信号所占用的资源，所述信道测量参考信号所占用的资源包括时域资源，N为正整数；
    所述网络设备根据所述N个信道测量参考信号配置信息，确定第一时间单元中解调参考信号DMRS占用的正交频分复用OFDM符号。
  14. 根据权利要求13所述的资源确定方法，其特征在于，所述时域资源为OFDM符号，所述DMRS占用的任意OFDM符号与所述N个信道测量参考信号配置信息所指示的信道测量参考信号占用的任意OFDM符号不重叠。
  15. 根据权利要求13或14所述的资源确定方法，其特征在于，若所述N个信道测量参考信号配置信息中至少一个信道测量参考信号配置信息所指示的信道测量参考信号占用的OFDM符号包括第一OFDM符号，则所述DMRS占用的OFDM符号不包括所述第一OFDM符号，所述DMRS占用的OFDM符号包括第二OFDM符号。
  16. 根据权利要求13或14所述的资源确定方法，其特征在于，若所述N个信道测量参考信号配置信息所指示的信道测量参考信号占用的OFDM符号不包括第一OFDM符号，则所述DMRS占用的OFDM符号包括所述第一OFDM符号，所述DMRS占用的OFDM符号不包括第二OFDM符号。
  17. 根据权利要求15或16所述的资源确定方法，其特征在于，所述第一OFDM符号和所述第二OFDM符号是所述DMRS对应的物理下行共享信道PDSCH的起始OFDM符号之外的OFDM符号。
  18. 根据权利要求15至17任一项所述的资源确定方法，其特征在于，所述第一时间单元为所述DMRS对应的PDSCH所在的时隙，所述第一OFDM符号为所述时隙中的第12个OFDM符号，所述第二OFDM符号为所述时隙中的第13个OFDM符号。
  19. 根据权利要求13至18任一项所述的资源确定方法，其特征在于，所述N个信道测量参考信号配置信息中的一个或多个信道测量参考信号配置信息与控制资源集合关联，所述控制资源集合用于承载下行控制信息DCI，所述DCI用于调度所述DMRS对应的物理下行共享信道PDSCH；和/或，
    所述N个信道测量参考信号配置信息中的一个或多个信道测量参考信号配置信息关联所述DMRS占用的码分复用CDM组。
  20. 根据权利要求19所述的资源确定方法，其特征在于，所述一个或多个信道测量参考信号配置信息所指示的信道测量参考信号所占用的资源包括多个资源单元RE，所述DMRS对应的PDSCH不在所述一个或多个信道测量参考信号配置信息所指示的信道测量参考信号占用的RE上映射。
  21. 根据权利要求19或20所述的资源确定方法，其特征在于，所述一个或多个信道测量参考信号配置信息所指示的信道测量参考信号所占用的资源包括多个资源单元RE，所述控制资源集合占用的RE的位置与所述一个或多个信道测量参考信号配置信息所指示的信道测量参考信号占用的RE的位置不重叠。
  22. 一种通信装置，其特征在于，包括：
    通信模块，用于接收N个信道测量参考信号配置信息，所述信道测量参考信号配置信息用于指示一个载波/服务小区/部分带宽上的信道测量参考信号所占用的资源，所述信道测量参考信号所占用的资源包括时域资源，N为正整数；
    处理模块，用于根据所述N个信道测量参考信号配置信息，确定第一时间单元中解调参考信号DMRS占用的正交频分复用OFDM符号。
  23. 根据权利要求22所述的通信装置，其特征在于，所述时域资源为OFDM符号，所述DMRS占用的任意OFDM符号与所述N个信道测量参考信号配置信息所指示的信道测量参考信号占用的任意OFDM符号不重叠。
  24. 根据权利要求22或23所述的通信装置，其特征在于，若所述N个信道测量参考信号配置信息中至少一个信道测量参考信号配置信息所指示的信道测量参考信号占用的OFDM符号包括第一OFDM符号，则所述DMRS占用的OFDM符号不包括所述第一OFDM符号，所述DMRS占用的OFDM符号包括第二OFDM符号。
  25. 根据权利要求22或23所述的通信装置，其特征在于，若所述N个信道测量参考信号配置信息所指示的信道测量参考信号占用的OFDM符号不包括第一OFDM 符号，则所述DMRS占用的OFDM符号包括所述第一OFDM符号，所述DMRS占用的OFDM符号不包括第二OFDM符号。
  26. 根据权利要求24或25所述的通信装置，其特征在于，所述第一OFDM符号和所述第二OFDM符号是所述DMRS对应的物理下行共享信道PDSCH的起始OFDM符号之外的OFDM符号。
  27. 根据权利要求24至26任一项所述的通信装置，其特征在于，所述第一时间单元为所述DMRS对应的PDSCH所在的时隙，所述第一OFDM符号为所述时隙中的第12个OFDM符号，所述第二OFDM符号为所述时隙中的第13个OFDM符号。
  28. 根据权利要求22至27任一项所述的通信装置，其特征在于，
    所述N个信道测量参考信号配置信息中的一个或多个信道测量参考信号配置信息与控制资源集合关联，所述控制资源集合用于承载下行控制信息DCI，所述DCI用于调度所述DMRS对应的物理下行共享信道PDSCH；和/或，
    所述N个信道测量参考信号配置信息中的一个或多个信道测量参考信号配置信息关联所述DMRS占用的码分复用CDM组。
  29. 根据权利要求28所述的通信装置，其特征在于，所述一个或多个信道测量参考信号配置信息所指示的信道测量参考信号所占用的资源包括多个资源单元RE，所述DMRS对应的PDSCH不在所述一个或多个信道测量参考信号配置信息所指示的信道测量参考信号占用的RE上映射。
  30. 根据权利要求28或29所述的通信装置，其特征在于，所述一个或多个信道测量参考信号配置信息所指示的信道测量参考信号所占用的资源包括多个资源单元RE，所述控制资源集合占用的RE的位置与所述一个或多个信道测量参考信号配置信息所指示的信道测量参考信号占用的RE的位置不重叠。
  31. 根据权利要求22至30任一项所述的通信装置，其特征在于，
    所述通信模块，还用于接收第一下行控制信息DCI和第二DCI，所述第一DCI用于调度第一物理下行共享信道PDSCH，所述第二DCI用于调度第二PDSCH，所述第一PDSCH的DMRS为第一DMRS，所述第二PDSCH的DMRS为第二DMRS，所述第一DCI承载于第一控制资源集合中，所述第二DCI承载于第二控制资源集合中，所述第一控制资源集合和所述第二控制资源集合属于不同的控制资源集合组；
    所述处理模块，具体用于根据所述N个信道测量参考信号配置信息，确定所述第一时间单元中所述第一DMRS占用的OFDM符号，和所述第二DMRS占用的OFDM符号。
  32. 根据权利要求31所述的通信装置，其特征在于，所述第一PDSCH不在第一RE映射，所述第二PDSCH不在第二RE映射，其中，所述第一RE为所述第一控制资源集合关联的一个或多个信道测量参考信号配置信息所指示的信道测量参考信号占用的RE，所述第二RE为所述第二控制资源集合关联的一个或多个信道测量参考信号配置信息所指示的信道测量参考信号占用的RE。
  33. 根据权利要求22至30任一项所述的通信装置，其特征在于，
    所述通信模块，还用于接收第一下行控制信息DCI和第二DCI，所述第一DCI用于调度所述第一时间单元的第一物理下行共享信道PDSCH，第二DCI用于调度所述 第一时间单元的第二PDSCH，所述第一PDSCH的DMRS为第一DMRS，所述第二PDSCH的DMRS为第二DMRS，所述第一DCI承载于第一控制资源集合中，所述第二DCI承载于第二控制资源集合中；
    所述处理模块，还用于根据所述N个信道测量参考信号配置信息，确定所述第一时间单元中所述第一DMRS占用的OFDM符号，和所述第二DMRS占用的OFDM符号。
  34. 一种通信装置，其特征在于，包括：
    通信模块，用于获取N个信道测量参考信号配置信息，所述信道测量参考信号配置信息用于指示一个载波/服务小区/部分带宽上的信道测量参考信号所占用的资源，所述信道测量参考信号所占用的资源包括时域资源，N为正整数；
    处理模块，用于根据所述N个信道测量参考信号配置信息，确定第一时间单元中解调参考信号DMRS占用的正交频分复用OFDM符号。
  35. 根据权利要求34所述的通信装置，其特征在于，所述时域资源为OFDM符号，所述DMRS占用的任意OFDM符号与所述N个信道测量参考信号配置信息所指示的信道测量参考信号占用的任意OFDM符号不重叠。
  36. 根据权利要求34或35所述的通信装置，其特征在于，若所述N个信道测量参考信号配置信息中至少一个信道测量参考信号配置信息所指示的信道测量参考信号占用的OFDM符号包括第一OFDM符号，则所述DMRS占用的OFDM符号不包括所述第一OFDM符号，所述DMRS占用的OFDM符号包括第二OFDM符号。
  37. 根据权利要求34或35所述的通信装置，其特征在于，若所述N个信道测量参考信号配置信息所指示的信道测量参考信号占用的OFDM符号不包括第一OFDM符号，则所述DMRS占用的OFDM符号包括所述第一OFDM符号，所述DMRS占用的OFDM符号不包括第二OFDM符号。
  38. 根据权利要求36或37所述的通信装置，其特征在于，所述第一OFDM符号和所述第二OFDM符号是所述DMRS对应的物理下行共享信道PDSCH的起始OFDM符号之外的OFDM符号。
  39. 根据权利要求36至38任一项所述的通信装置，其特征在于，所述第一时间单元为所述DMRS对应的PDSCH所在的时隙，所述第一OFDM符号为所述时隙中的第12个OFDM符号，所述第二OFDM符号为所述时隙中的第13个OFDM符号。
  40. 根据权利要求34至39任一项所述的通信装置，其特征在于，所述N个信道测量参考信号配置信息中的一个或多个信道测量参考信号配置信息与控制资源集合关联，所述控制资源集合用于承载下行控制信息DCI，所述DCI用于调度所述DMRS对应的物理下行共享信道PDSCH；和/或，
    所述N个信道测量参考信号配置信息中的一个或多个信道测量参考信号配置信息关联所述DMRS占用的码分复用CDM组。
  41. 根据权利要求40所述的通信装置，其特征在于，所述一个或多个信道测量参考信号配置信息所指示的信道测量参考信号所占用的资源包括多个资源单元RE，所述DMRS对应的PDSCH不在所述一个或多个信道测量参考信号配置信息所指示的信道测量参考信号占用的RE上映射。
  42. 根据权利要求40或41所述的通信装置，其特征在于，所述一个或多个信道测量参考信号配置信息所指示的信道测量参考信号所占用的资源包括多个资源单元RE，所述控制资源集合占用的RE的位置与所述一个或多个信道测量参考信号配置信息所指示的信道测量参考信号占用的RE的位置不重叠。
  43. 一种计算机可读存储介质，其特征在于，所述计算机可读存储介质存储有指令，当所述指令被计算机执行时，使得所述计算机执行如权利要求1至12任一项所述的资源确定方法，或者使得所述计算机执行如权利要求13至21任一项所述的资源确定方法。
  44. 一种计算机程序产品，其特征在于，所述计算机程序产品包含指令，当所述指令在计算机上运行时，使得所述计算机可以执行如权利要求1至12任一项所述的资源确定方法，或者使得所述计算机执行如权利要求13至21任一项所述的资源确定方法。
  45. 一种芯片，其特征在于，其特征在于，包括处理器，当所述处理器执行指令时，所述处理器执行如权利要求1至12任一项所述的资源确定方法，或者所述处理器执行如权利要求13至21任一项所述的资源确定方法。
  46. 一种通信系统，其特征在于，包括网络设备和终端，所述终端用于执行权利要求1至12任一项所述的资源确定方法，所述网络设备用于执行权利要求13至21任一项所述的资源确定方法。
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