WO2020038194A1 - Procédé de mise en correspondance de port d'antenne de signal de référence de démodulation, et dispositif terminal et dispositif de réseau - Google Patents

Procédé de mise en correspondance de port d'antenne de signal de référence de démodulation, et dispositif terminal et dispositif de réseau Download PDF

Info

Publication number
WO2020038194A1
WO2020038194A1 PCT/CN2019/098221 CN2019098221W WO2020038194A1 WO 2020038194 A1 WO2020038194 A1 WO 2020038194A1 CN 2019098221 W CN2019098221 W CN 2019098221W WO 2020038194 A1 WO2020038194 A1 WO 2020038194A1
Authority
WO
WIPO (PCT)
Prior art keywords
port
dmrs antenna
antenna port
dmrs
identifiers
Prior art date
Application number
PCT/CN2019/098221
Other languages
English (en)
Chinese (zh)
Inventor
孙晓东
孙鹏
杨宇
鲁智
Original Assignee
维沃移动通信有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 维沃移动通信有限公司 filed Critical 维沃移动通信有限公司
Publication of WO2020038194A1 publication Critical patent/WO2020038194A1/fr

Links

Images

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/21—Control channels or signalling for resource management in the uplink direction of a wireless link, i.e. towards the network
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal

Definitions

  • the present application relates to the field of communication technologies, and in particular, to a demodulation reference signal (Demodulation Reference Signal, DMRS) antenna port mapping method, terminal device, and network device.
  • DMRS Demodulation Reference Signal
  • a single codeword can map up to 4 positive signals.
  • Cross DMRS antenna ports dual codewords correspond to 5 to 8 orthogonal DMRS antenna ports; while terminal equipment transmits Physical Uplink Shared Channel (PUSCH), only supports single codeword transmission, dual codewords are not supported Transmission, and a single codeword supports up to 4 orthogonal DMRS antenna ports.
  • PUSCH Physical Uplink Shared Channel
  • the related technology only specifies the number of DMRS antenna ports mapped by the dual codewords, and the related technology only supports terminal equipment to transmit PUSCH in a single codeword mode, so that PDSCH / The PUSCH transmission is relatively restricted, which in turn leads to a decrease in PDSCH / PUSCH transmission efficiency.
  • Embodiments of the present invention provide a demodulation reference signal antenna port mapping method, a terminal device, and a network device, which are used to solve the problem of reduced transmission efficiency caused by a terminal device using a traditional DMRS antenna port mapping method to transmit PDSCH / PUSCH.
  • an embodiment of the present invention provides a method for mapping a demodulation reference signal antenna port to a terminal device.
  • the method includes:
  • DCI downlink control information
  • the DCI is used to instruct the terminal device to use a DMRS antenna port corresponding to each codeword when the first channel is transmitted using dual codewords;
  • One channel is a physical uplink shared channel PUSCH or a physical downlink shared channel PDSCH;
  • an embodiment of the present invention provides a method for mapping a demodulation reference signal antenna port, which is applied to a network device.
  • the method includes:
  • the terminal device uses dual codewords to transmit the first channel, a DMRS antenna port corresponding to each codeword; the first channel is PUSCH or PDSCH; and the terminal device is based on the DCI Determining the DMRS antenna port.
  • an embodiment of the present invention provides a terminal device, including:
  • a receiving module configured to receive DCI from a network device; wherein, when the terminal device uses dual codewords to transmit the first channel, a DMRS antenna port corresponding to each codeword; the first channel is PUSCH or PDSCH;
  • a determining module configured to determine the DMRS antenna port according to the DCI received by the receiving module.
  • an embodiment of the present invention provides a network device, including:
  • a sending module configured to send DCI to a terminal device; wherein, when the terminal device uses dual codewords to transmit the first channel, a DMRS antenna port corresponding to each codeword; the first channel is PUSCH or PDSCH; and the DCI It is used to instruct the terminal device to determine the DMRS antenna port according to the DCI.
  • an embodiment of the present invention provides a terminal device including a processor, a memory, and a computer program stored on the memory and executable on the processor, and the computer program is executed by the processor. Steps of implementing the demodulation reference signal antenna port mapping method according to the first aspect.
  • an embodiment of the present invention provides a network device, including a processor, a memory, and a computer program stored on the memory and executable on the processor.
  • the computer program is executed by the processor, The steps of implementing the demodulation reference signal antenna port mapping method according to the second aspect.
  • an embodiment of the present invention provides a computer-readable storage medium on which a computer program is stored.
  • the computer program is executed by a processor, the method for implementing the demodulation reference signal antenna port mapping method described above is implemented. step.
  • the network device instructs the terminal device through DCI to indicate that the terminal device uses a dual codeword to transmit the first channel (that is, PUSCH or PDSCH) corresponding to a DMRS antenna port of each codeword, so that the terminal device can use the DCI directly determines the DMRS antenna port corresponding to each codeword, thereby improving the PDSCH / PUSCH transmission rate and improving communication efficiency and efficiency.
  • DCI directs the terminal device through DCI to indicate that the terminal device uses a dual codeword to transmit the first channel (that is, PUSCH or PDSCH) corresponding to a DMRS antenna port of each codeword
  • FIG. 1 is a schematic structural diagram of a communication system according to an embodiment of the present invention.
  • FIG. 2 is a schematic flowchart of a method for mapping a demodulation reference signal antenna port according to an embodiment of the present invention
  • FIG. 3 is a schematic structural diagram of a terminal device according to an embodiment of the present invention.
  • FIG. 4 is a schematic structural diagram of a network device according to an embodiment of the present invention.
  • FIG. 5 is a schematic diagram of a hardware structure of a terminal device according to an embodiment of the present invention.
  • FIG. 6 is a schematic diagram of a hardware structure of a network device according to an embodiment of the present invention.
  • the technical solution provided in this application can be applied to various communication systems, for example, a 5G communication system, a future evolution system, or a variety of communication convergence systems.
  • M2M machine-to-machine
  • eMBB enhanced mobile Internet
  • ultra-high reliability and ultra-low-latency communication ultra Reliable & Low Latency (Communication, uRLLC)
  • Massive Machine Type Communication (mMTC) Massive Machine Type Communication
  • These scenarios include, but are not limited to, scenarios such as communication between a terminal device and a terminal device, or communication between a network device and a network device, or communication between a network device and a terminal device.
  • FIG. 1 shows a schematic diagram of a possible structure of a communication system according to an embodiment of the present invention.
  • the communication system includes at least one network device 100 (only one is shown in FIG. 1) and one or more terminal devices 200 to which each network device 100 is connected.
  • the network device 100 may be a base station, a core network device, a transmission and reception node (Transmission and Reception Point, TRP), a relay station, or an access point.
  • the network device 100 may be a Global System for Mobile Communication (GSM) or a Code Division Multiple Access (CDMA) network, or a base transceiver station (BTS), or a broadband NB (NodeB) in Wideband Code Division Multiple Access (WCDMA) can also be eNB or eNodeB (evolutional NodeB) in LTE.
  • GSM Global System for Mobile Communication
  • CDMA Code Division Multiple Access
  • BTS base transceiver station
  • NodeB broadband NB
  • WCDMA Wideband Code Division Multiple Access
  • the network device 100 may also be a wireless controller in a Cloud Radio Access Network (CRAN) scenario.
  • the network device 100 may also be a network device in a 5G communication system or a network device in a future evolved network.
  • the wording does not constitute a limitation on this
  • the terminal device 200 may be a wireless terminal device or a wired terminal device.
  • the wireless terminal device may be a device that provides voice and / or other business data connectivity to the user, a handheld device with a wireless communication function, a computing device, or a device connected to a wireless device.
  • a wireless terminal device can communicate with one or more core networks via a Radio Access Network (RAN).
  • RAN Radio Access Network
  • the wireless terminal device can be a mobile terminal device, such as a mobile phone (also called a "cellular" phone) and has mobile
  • the computer of the terminal device may be a portable, pocket, handheld, computer-built or vehicle-mounted mobile device, which exchanges language and / or data with the wireless access network, and personal communication service (PCS) Phones, cordless phones, Session Initiation Protocol (SIP) phones, Wireless Local Loop (WLL) stations, Personal Digital Assistants (PDAs), and other devices.
  • PCS personal communication service
  • SIP Session Initiation Protocol
  • WLL Wireless Local Loop
  • PDAs Personal Digital Assistants
  • Wireless terminal devices can also be mobile Equipment, user equipment (User Equipment, UE), UE terminal equipment, access terminal equipment, wireless communication equipment, terminal equipment unit, terminal equipment station, mobile station, mobile station, mobile station, remote station ), Remote station, remote terminal equipment (Remote terminal), subscriber unit (Subsc riber unit, subscriber station, user agent, terminal equipment, etc.
  • FIG. 1 illustrates that the terminal device is a mobile phone.
  • the words “first” and “second” are used to distinguish the same or similar items having substantially the same functions or functions.
  • the skilled person can understand that the words “first” and “second” do not limit the quantity and execution order.
  • FIG. 2 shows a schematic flowchart of a demodulation reference signal antenna port mapping method according to an embodiment of the present invention.
  • the demodulation reference signal antenna port mapping method may include:
  • Step 201 The network device sends a DCI to the terminal device.
  • the opposite terminal device receives DCI from the network device.
  • the network device in the embodiment of the present invention may be a network device in the communication system shown in FIG. 1, for example, a base station; the terminal device in the embodiment of the present invention may be a terminal device in the communication system shown in FIG. 1.
  • the above-mentioned DCI is used to instruct the terminal device to use a DMRS antenna port corresponding to each codeword when transmitting the first channel by using a double codeword.
  • the first channel is: a physical downlink shared channel (PDSCH) or a physical uplink shared channel (PUSCH).
  • Radio Resource Control Radio Resource Control
  • the above-mentioned DCI is used to indicate at least one of the following information of the DMRS in the first channel: the number of occupied symbols of the pre-DMRS, the number of CDM groups occupied by the dataless DMRS antenna port, and the type of the DMRS.
  • the types of the DMRS mentioned above include a first type and a second type.
  • the above-mentioned DCI format of the DCI includes at least one antenna port domain, and each antenna port domain includes at least one antenna port domain value, and one antenna port domain value is used to indicate that the terminal device is in A DMRS antenna port corresponding to each codeword when the first channel is transmitted at least once using dual codewords.
  • Step 202 The terminal device determines a DMRS antenna port according to the DCI.
  • the DCI when the above-mentioned first channel is a PUSCH, the DCI is used to indicate whether the terminal device repeatedly sends the PUSCH; or, when the above-mentioned first channel is a PDSCH, The DCI is used to indicate whether the terminal device receives the PDSCH in combination.
  • the above-mentioned DCI is used to instruct the terminal device that when a dual codeword is used to transmit the first channel, each codeword corresponds to the same DMRS antenna port.
  • the DCI is used to instruct the terminal device to use the same DMRS antenna port corresponding to each codeword when the PUSCH is repeatedly transmitted using dual codewords; or,
  • the above-mentioned DCI is used to instruct the terminal device to use the same DMRS antenna port corresponding to each codeword when dual codewords are combined to receive the PDSCH.
  • the network device instructs the terminal device to transmit the first channel by dual codewords through DCI
  • the DMRS antenna port corresponding to each codeword is the same
  • the corresponding DMRS port mapping table can be shown in Table 1 below.
  • the terminal device may receive the PDSCH in a single codeword combination according to the instructions of the DCI.
  • the method further includes the following steps:
  • Step 202a The network device generates DCI according to a predetermined rule and the first information.
  • the above-mentioned first information includes at least one of the following: the number of occupied symbols of the front DMRS, the number of CDM groups occupied by the dataless DMRS antenna port, and the type of the DMRS.
  • the above-mentioned DCI is used to indicate at least one of the following information of the DMRS in the first channel: the number of occupied symbols of the pre-DMRS, the number of CDM groups occupied by the dataless DMRS antenna port, and the type of the DMRS.
  • step 202 specifically includes the following steps:
  • Step 202b the terminal device determines a DMRS antenna port according to the DCI and a predetermined rule
  • the above-mentioned predetermined rule is configured by the network device for the terminal device, or is predefined (for example, prescribed by a protocol).
  • the foregoing predetermined rule is used to reflect the association relationship between the DMRS antenna port and the codeword.
  • step 202b specifically includes:
  • Step 202b1 The terminal device determines a DMRS antenna port according to an antenna port domain value and a predetermined rule in the DCI.
  • the foregoing predetermined rule includes: a correspondence between an antenna port domain value and a DMRS antenna port, wherein one antenna port domain value corresponds to at least one group of DMRS antenna ports.
  • the foregoing predetermined rule includes: information of the DMRS in the first channel indicated by the antenna port domain value (that is, the number of occupied symbols of the pre-DMRS, the number of occupied DMRS antenna ports without data Correspondence between the number of CDM groups and the type of DMRS) and the DMRS antenna port.
  • the foregoing predetermined rule includes:
  • the first codeword corresponds to the first DMRS antenna port
  • the second codeword corresponds to the second DMRS antenna port
  • the first codeword corresponds to the third DMRS antenna port
  • the second codeword corresponds to the fourth DMRS antenna port
  • the first codeword corresponds to the fifth DMRS antenna port
  • the second codeword corresponds to the sixth DMRS antenna port
  • the first codeword corresponds to a seventh DMRS antenna port
  • the second codeword corresponds to an eighth DMRS antenna port
  • the first codeword corresponds to the ninth DMRS antenna port
  • the second codeword corresponds to the tenth DMRS antenna port
  • the first codeword corresponds to the eleventh DMRS antenna port
  • the second codeword corresponds to the twelfth DMRS antenna port
  • the first codeword corresponds to the thirteenth DMRS antenna port
  • the second codeword corresponds to the fourteenth DMRS antenna port
  • the foregoing first DMRS antenna port and the second DMRS antenna port are different.
  • the foregoing first DMRS antenna port and the second DMRS antenna port are different.
  • the port identifier of the first DMRS antenna port is: 0, and the port identifier of the second DMRS antenna port is: 1;
  • the type of the DMRS is the first type and the maximum number of symbols of the DMRS is 2, when the number of the CDM groups is 2, the port identifier of the first DMRS antenna port is: 0, and the port identifier of the second DMRS antenna port Is: 2;
  • the type of the DMRS is the second type and the maximum number of symbols of the DMRS is 1 or 2, when the number of the CDM groups is 1, the port identifier of the first DMRS antenna port is: 0, and the number of the second DMRS antenna port is The port identification is: 1; when the number of the CDM groups is 2 or 3, the port identification of the first DMRS antenna port is: 0, and the port identification of the second DMRS antenna port is at least one of the following: 2, or, 4 Or, the port identifier of the first DMRS antenna port is: 2, and the port identifier of the second DMRS antenna port is: 4.
  • the type of the DMRS is the first type and the maximum number of symbols of the DMRS is 2, when the number of the CDM groups is 1, the port identifier of the third DMRS antenna port is: 0, and the port identifier of the fourth DMRS antenna port Is: 4 and 5; or, the port identifier of the third DMRS antenna port is: 0 and 1, and the port identifier of the fourth DMRS antenna port is: 4: when the number of the CDM group is 2, the third DMRS antenna
  • the port identification of the port is: 0, the port identification of the fourth DMRS antenna port is: 2 and 3; or, the port identification of the third DMRS antenna port is: 0 and 1, and the port identification of the fourth DMRS antenna port is: 2;
  • the type of the DMRS is the second type and the maximum number of symbols of the DMRS is 1 or 2, when the number of the CDM groups is 1, the port identifier of the third DMRS antenna port is: 0, and the number of the fourth DMRS antenna port is The port identifiers are: 6 and 7; or, the port identifiers of the third DMRS antenna port are: 0 and 1, and the port identifiers of the fourth DMRS antenna port are: 6; when the number of the CDM groups is 2 or 3, the above The port identifier of the third DMRS antenna port is: 0, and the port identifier of the fourth DMRS antenna port is: 2 and 3; or, the port identifier of the third DMRS antenna port is: 0 and 1, the port identifier of the fourth DMRS antenna port is: The port identifier is: 2; when the number of CDM groups is 3, the port identifier of the third DMRS antenna port is: 0, and the port identifier of the fourth DMRS antenna port is: 2
  • the type of the DMRS is the first type and the maximum number of symbols of the DMRS is 2, when the number of the CDM groups is 1, the port identifiers of the fifth DMRS antenna port are: 0 and 1, and the number of the sixth DMRS antenna port is The port identifiers are: 4 and 5; when the number of CDM groups is 2, the port identifier of the fifth DMRS antenna port is: 0, and the port identifier of the sixth DMRS antenna port are: 2, 3, and 6; or, the above The port identifiers of the fifth DMRS antenna port are: 0 and 1, and the port identifiers of the sixth DMRS antenna port are: 2 and 3; or, the port identifiers of the fifth DMRS antenna port are: 0, 1, and 4, the first The port identification of the six DMRS antenna ports is: 2;
  • the type of the DMRS is the second type and the maximum number of symbols of the DMRS is 1 or 2, when the number of the CDM groups is 1, the port identifiers of the fifth DMRS antenna port are: 0 and 1, and the sixth DMRS antenna
  • the port identifiers of the ports are: 6 and 7; when the number of CDM groups is 2 or 3, the port identifiers of the fifth DMRS antenna port are: 0, and the port identifiers of the sixth DMRS antenna port are: 2, 3, and 8 Or, the port identifier of the fifth DMRS antenna port is: 0 and 1, and the port identifier of the sixth DMRS antenna port is at least one of the following: 2 and 3, or, 4 and 5; or, the fifth DMRS antenna
  • the port identifiers of the ports are: 2 and 3, and the port identifiers of the sixth DMRS antenna port are: 4 and 5; or, the port identifiers of the fifth DMRS antenna port are: 0, 1, and 6, and the sixth DMRS
  • the port identifier of the seventh DMRS antenna port is: 0, and the port identifier of the eighth DMRS antenna port Are: 2, 3, 6 and 7; or, the port identifiers of the seventh DMRS antenna port are: 0 and 1, and the port identifiers of the eighth DMRS antenna port are: 2, 3, and 6; or, the seventh DMRS
  • the port identifiers of the antenna ports are: 0, 1, and 4, and the port identifiers of the eighth DMRS antenna port are: 2 and 3; or, the port identifiers of the seventh DMRS antenna port are: 0, 1, 4, and 5, the above
  • the port identifier of the eighth DMRS antenna port is: 2;
  • the port identifier of the seventh DMRS antenna port is: 0, and the eighth DMRS antenna is The port identifiers of the ports are: 2, 3, 8 and 9; or, the port identifiers of the seventh DMRS antenna port are: 0 and 1, and the port identifiers of the eighth DMRS antenna port are: 2, 3, and 8; or, The port identifiers of the seventh DMRS antenna port are: 0, 1, and 6, and the port identifiers of the eighth DMRS antenna port are: 2 and 3; or, the port identifiers of the seventh DMRS antenna port are: 0, 1, 6 And 7, the port identifier of the eighth DMRS antenna port is: 2; when the number of the CDM groups is three, the port identifier of the seventh DMRS antenna port is: 0, and the port identifier of the eighth DMRS antenna port is: 2 , 3, 4
  • the port identifier of the eighth DMRS antenna port is 4, 5, and 10; or, the port identifier of the seventh DMRS antenna port is: 0, 1, and 2, and the port identifier of the eighth DMRS antenna port is: 4 and 5; or, the port identifier of the seventh DMRS antenna port Are: 0, 1, and 6, the port identifiers of the eighth DMRS antenna port are: 2 and 4; or, the port identifiers of the seventh DMRS antenna port are: 0, 1, 2, and 3, and the ports of the eighth DMRS antenna port Identified as: 4.
  • the port identifiers of the ninth DMRS antenna port are: 0 and 1, and the number of the tenth DMRS antenna port is The port identifiers are: 2, 3, 6 and 7; or, the port identifiers of the ninth DMRS antenna port are: 0, 1, and 4, and the port identifiers of the tenth DMRS antenna port are: 2, 6, and 7; or, The port identifiers of the ninth DMRS antenna port are: 0, 1, 4, and 5, and the port identifiers of the tenth DMRS antenna port are: 2 and 3;
  • the port identifiers of the ninth DMRS antenna ports are: 0 and 1, and the tenth The port identifiers of the DMRS antenna ports are: 2, 3, 8 and 9; or, the port identifiers of the ninth DMRS antenna port are: 0, 1, and 6, and the port identifiers of the tenth DMRS antenna port are: 2, 8, and 9; or, the port identifier of the ninth DMRS antenna port is: 0, 1, 6, and 7, and the port identifier of the tenth DMRS antenna port is: 2 and 3; when the number of the CDM group is 3, the ninth The port identifiers of the DMRS antenna ports are: 0 and 1, and the port identifiers of the tenth DMRS antenna port are: 2, 3, 4, and 5; or, the port identifiers of the ninth DMRS antenna port are: 0, 1, 2, and 3.
  • the port identifiers of the DMRS antenna ports are: 0 and 1, and the port identifiers of the tenth DMRS antenna port are
  • the port identifiers of the eleventh DMRS antenna ports are: 0, 1, and 4, and the twelfth The port identifiers of the DMRS antenna ports are: 2, 3, 6, and 7; or, the port identifiers of the eleventh DMRS antenna ports are: 0, 1, 4, and 5, and the port identifiers of the twelfth DMRS antenna port are: 2, 3 and 6;
  • the port identifiers of the eleventh DMRS antenna ports are: 0, 1, and 6, tenth
  • the port identifiers of the two DMRS antenna ports are: 2, 3, 8 and 9; or, the port identifiers of the eleventh DMRS antenna port are: 0, 1, 6, and 7, and the port identifiers of the twelfth DMRS antenna port are: : 2, 3, and 8; when the number of the CDM groups is 3, the port identifiers of the eleventh DMRS antenna ports are: 0, 1, and 6, and the port identifiers of the twelfth DMRS antenna port are: 2, 3, 4 and 5; or, the port identifiers of the eleventh DMRS antenna port are: 0, 1, 2, and 3, and the port identifiers of the twelfth DMRS antenna port are: 4, 5, and 10.
  • the port identifiers of the thirteenth DMRS antenna ports are: 0, 1, 6, and 7,
  • the port identification of the fourteenth DMRS antenna port is at least one of the following: 2, 3, 8, and 9, or 4, 5, 10, and 11; or, the port identification of the thirteenth DMRS antenna port is: 2, 3, 8 and 9, the port identifier of the fourteenth DMRS antenna port is: 4, 5, 10, and 11; when the number of the CDM groups is three, the port identifier of the thirteenth DMRS antenna port is: 0, 1 , 6, and 7, the port identifiers of the fourteenth DMRS antenna port are: 2, 3, 4, and 5.
  • mapping rules will be described by using three DMRS antenna port mapping tables as an example.
  • the following Table 2 is: in a case where the type of the DMRS is the first type and the maximum number of symbols of the DMRS is 2, the corresponding DMRS antenna port mapping table.
  • the network device configures the PDSCH for dual codeword transmission through RRC signaling.
  • Table 2 above is used as an example.
  • the antenna port domain value in DCI is X8, X8 is used as an index.
  • the PDSCH number is determined.
  • One codeword is received using DMRS antenna port 0, and the second codeword is received using DMRS antenna port 2, DMRS antenna port 3, and DMRS antenna port 6. Then, the terminal equipment demodulates the corresponding codeword according to these DMRS antenna ports.
  • the domain value of any antenna port in the above-mentioned X1 to X7 and X9 may be a domain value set, and It is not configured with the corresponding child mapping table.
  • the first codeword corresponds to DMRS antenna port 0
  • the second codeword corresponds to DMRS antenna port 1
  • the number of DMRS symbols is 1.
  • the following Table 4 is: when the type of the DMRS is the second type and the number of symbols of the DMRS is 1, the corresponding DMRS antenna port mapping table.
  • the network device configures the PDSCH to be transmitted using dual codes through RRC signaling.
  • Table 4 above is used as an example.
  • the antenna port domain value in DCI is X1, X1 is used as an index.
  • the PDSCH number is determined.
  • One codeword is received using DMRS antenna port 1
  • the second codeword is received using DMRS antenna port 0.
  • the terminal equipment demodulates the corresponding codeword according to these DMRS antenna ports.
  • any antenna port in X30 to X32 can be a domain value set, and a corresponding sub-mapping table is configured for it, so that the terminal device can accurately determine the number of DMRS CDM groups.
  • the X5 ⁇ a, b ⁇ , and the sub-mapping table corresponding to the X1 is shown in Table 5 below:
  • the first codeword corresponds to DMRS antenna port 0
  • the second codeword corresponds to DMRS antenna port 2
  • the number of CDM groups is 1.
  • the following Table 6 is: when the type of the DMRS is the second type and the maximum number of symbols of the DMRS is 2, the corresponding DMRS antenna port mapping table.
  • the network device configures the PDSCH for dual codeword transmission through RRC signaling.
  • Table 6 above is used as an example.
  • the antenna port domain value in DCI is X24
  • X24 is used as an index.
  • the PDSCH number is determined.
  • One codeword is received using DMRS antenna port 0, DMRS antenna port 1 and DMRS antenna port 6, and the second codeword is received using DMRS antenna port 2 and DMRS antenna port 4.
  • the terminal equipment demodulates the corresponding codeword according to these DMRS antenna ports.
  • any of the antenna port domain values of X1, X5 to X11, X13 to X15, X17 to X19, X26 to X29, X33, and X34 can be a set of domain values, and configure corresponding sub-ports for them.
  • the mapping table enables the terminal device to accurately determine the number of CDM groups and symbols of the DMRS.
  • the X5 ⁇ 1, 2, 3, 4 ⁇ , and the sub-mapping table corresponding to the X5 is shown in Table 7 below:
  • the antenna port field value in DCI is 1, the first codeword corresponds to DMRS antenna port 0, the second codeword corresponds to DMRS antenna port 2, the number of CDM groups is 2, and the number of DMRS symbols is 1.
  • X1, X6 to X11, X13 to X15, X17 to X19, X26 to X29, X33, and X34 can be assigned corresponding sub-mapping tables.
  • Table 7 above For specific examples, refer to Table 7 above, and details are not described here.
  • antenna port domain values in the above Tables 1 to 7 are only examples, and in actual applications, other symbols (for example, any one of numbers, English letters, symbols, and characters) can also be used. Or a combination symbol formed by combining at least two of numbers, English letters, symbols, and characters), which is not limited in the embodiment of the present invention.
  • a network device instructs a terminal device through DCI to indicate that the terminal device uses dual codewords to transmit the first channel (that is, PUSCH or PDSCH) corresponding to each DMRS antenna port. Therefore, the terminal device can directly determine the DMRS antenna port corresponding to each codeword based on the DCI, thereby improving the PDSCH / PUSCH transmission rate, and improving communication efficiency and efficiency.
  • an embodiment of the present invention provides a terminal device 300.
  • the terminal device 300 includes a receiving module 301 and a determining module 302, where:
  • the receiving module 301 is configured to receive downlink control information DCI from a network device.
  • the DCI is used to instruct the terminal device 300 to use a dual codeword to transmit a DMRS antenna port corresponding to each codeword.
  • the first channel is PUSCH or PDSCH.
  • the determining module 302 is configured to determine a DMRS antenna port according to the DCI received by the receiving module 301.
  • the DCI when the first channel is a PUSCH, the DCI is used to indicate whether the terminal device 300 repeatedly sends a PUSCH; or, when the first channel is a PDSCH, the DCI is used to indicate whether the terminal device 300 is Receive PDSCH in combination.
  • the above-mentioned DCI is used to instruct the terminal device 300 to use the dual codewords to transmit the first channel with the same DMRS antenna port corresponding to each codeword.
  • the antenna port domain in the above DCI includes at least one antenna port domain value, and one antenna port domain value is used to instruct the terminal device 300 to use a dual codeword to transmit a DMRS antenna corresponding to each codeword at least once on a first channel port.
  • the foregoing determining module 302 is specifically configured to determine the DMRS antenna port according to the DCI and a predetermined rule; wherein the foregoing predetermined rule is configured by the network device for the terminal device, or is predefined.
  • the above DCI is used to indicate at least one of the following information of the DMRS in the first channel: the number of symbols occupied by the front DMRS, the number of CDM groups occupied by the dataless DMRS antenna port, and the type of the DMRS;
  • the above predetermined rule includes: when the total number of DMRS antenna ports corresponding to the dual codeword is equal to 2, the first codeword corresponds to the first DMRS antenna port, and the second codeword corresponds to the second DMRS antenna port;
  • the first codeword corresponds to the third DMRS antenna port
  • the second codeword corresponds to the fourth DMRS antenna port
  • the first codeword corresponds to the fifth DMRS antenna port
  • the second codeword corresponds to the sixth DMRS antenna port
  • the first codeword corresponds to the seventh DMRS antenna port
  • the second codeword corresponds to the eighth DMRS antenna port
  • the first codeword corresponds to the ninth DMRS antenna port
  • the second codeword corresponds to the tenth DMRS antenna port
  • the first codeword corresponds to the eleventh DMRS antenna port
  • the second codeword corresponds to the twelfth DMRS antenna port
  • the first codeword corresponds to the thirteenth DMRS antenna port
  • the second codeword corresponds to the fourteenth DMRS antenna port
  • the port identifier of the first DMRS antenna port is: 0, and the port identifier of the second DMRS antenna port is: 1;
  • the type of the DMRS is the first type and the maximum number of symbols of the DMRS is 2, when the number of the CDM groups is 2, the port identifier of the first DMRS antenna port is: 0, and the port identifier of the second DMRS antenna port is: 2;
  • the port identifier of the first DMRS antenna port is: 0, and the number of the second DMRS antenna port is
  • the port identifier is at least one of the following: 2, or, 4; or, the port identifier of the first DMRS antenna port is: 2, and the port identifier of the second DMRS antenna port is: 4.
  • the type of the DMRS is the first type and the maximum number of symbols of the DMRS is 2, when the number of the CDM groups is 1, the port identifier of the third DMRS antenna port is: 0, and the fourth DMRS antenna port The port ID of the third DMRS antenna port is: 4 and 5; or, the port ID of the third DMRS antenna port is: 0 and 1, and the port ID of the fourth DMRS antenna port is: 4; when the above-mentioned number of CDM groups is 2, the third DMRS antenna The port identification of the port is: 0, the port identification of the fourth DMRS antenna port is: 2 and 3; or, the port identification of the third DMRS antenna port is: 0 and 1, and the port identification of the fourth DMRS antenna port is 2;
  • the type of the DMRS is the second type and the maximum number of symbols of the DMRS is 1 or 2, when the number of the CDM groups is 1, the port identifier of the third DMRS antenna port is: 0, and the port identifier of the fourth DMRS antenna port Are: 6 and 7; or, the port identification of the third DMRS antenna port is: 0 and 1, and the port identification of the fourth DMRS antenna port is: 6; when the number of the above-mentioned CDM groups is 2 or 3, the third DMRS antenna port The port ID of the port is: 0, the port ID of the fourth DMRS antenna port: 2 and 3; or, the port ID of the third DMRS antenna port is: 0 and 1, and the port ID of the fourth DMRS antenna port is: 2; When the number of CDM groups is 3, the port identification of the third DMRS antenna port is: 0, and the port identification of the fourth DMRS antenna port is: 2 and 4; or, the port identification of the third DMRS antenna port is: 0 and 2, the The
  • the type of the DMRS is the first type and the maximum number of symbols of the DMRS is 2, when the number of the CDM groups is 1, the port identifier of the fifth DMRS antenna port is: 0 and 1, and the sixth DMRS
  • the port identifiers of the antenna ports are: 4 and 5; when the number of CDM groups is 2, the port identifier of the fifth DMRS antenna port is: 0, and the port identifier of the sixth DMRS antenna port is: 2, 3, and 6; or, The port identities of the fifth DMRS antenna port are: 0 and 1, and the port identities of the sixth DMRS antenna port are: 2 and 3; or, the port identities of the fifth DMRS antenna port are: 0, 1, and 4, and the sixth DMRS antenna The port identifier of the port is: 2;
  • the type of the DMRS is the second type and the maximum number of symbols of the DMRS is 1 or 2, when the number of the CDM groups is 1, the port identifiers of the fifth DMRS antenna port are: 0 and 1, and the number of the sixth DMRS antenna port is The port identifiers are: 6 and 7; when the number of CDM groups is 2 or 3, the port identifier of the fifth DMRS antenna port is: 0, and the port identifier of the sixth DMRS antenna port is: 2, 3, and 8;
  • the port identification of the five DMRS antenna ports is: 0 and 1, and the port identification of the sixth DMRS antenna port is at least one of the following: 2 and 3, or, 4 and 5; or, the port identification of the fifth DMRS antenna port is: 2 And 3, the port identification of the sixth DMRS antenna port is: 4 and 5; or, the port identification of the fifth DMRS antenna port is: 0, 1, and 6, and the port identification of the sixth DMRS antenna port is: 2; in the above CDM When the number
  • the port identifier of the seventh DMRS antenna port is: 0, and the eighth DMRS antenna port
  • the port identifiers are: 2, 3, 6 and 7; or, the port identifiers of the seventh DMRS antenna port are: 0 and 1, and the port identifiers of the eighth DMRS antenna port are: 2, 3, and 6; or, the seventh DMRS
  • the port identification of the antenna port is: 0, 1, and 4, and the port identification of the eighth DMRS antenna port is: 2 and 3; or, the port identification of the seventh DMRS antenna port is: 0, 1, 4, and 5, and the eighth DMRS
  • the port identification of the antenna port is: 2;
  • the port identifier of the seventh DMRS antenna port is: 0, and the number of the eighth DMRS antenna port is The port identifiers are: 2, 3, 8 and 9; or, the port identifiers of the seventh DMRS antenna port are: 0 and 1, and the port identifiers of the eighth DMRS antenna port are: 2, 3, and 8; or, the seventh DMRS antenna
  • the port identifiers of the ports are: 0, 1, and 6, and the port identifiers of the eighth DMRS antenna port are: 2 and 3; or, the port identifiers of the seventh DMRS antenna port are: 0, 1, 6, and 7, and the eighth DMRS antenna
  • the port identifier of the port is: 2; when the number of CDM groups is 3, the port identifier of the seventh DMRS antenna port is: 0, and the port identifier of the eighth DMRS antenna port is: 2, 3, 4,
  • the port identifiers are: 4, 5, and 10; or, the port identifiers of the seventh DMRS antenna port are: 0, 1, and 2, and the eighth The port identifiers of the DMRS antenna ports are: 4 and 5; or, the port identifiers of the seventh DMRS antenna port are: 0, 1, and 6, and the port identifiers of the eighth DMRS antenna port are: 2 and 4; or, the seventh DMRS antenna
  • the port identification of the port is: 0, 1, 2 and 3, and the port identification of the eighth DMRS antenna port is: 4.
  • the port identifier of the ninth DMRS antenna port is: 0 and 1, the tenth DMRS
  • the port identifiers of the antenna ports are: 2, 3, 6, and 7; or, the port identifiers of the ninth DMRS antenna port are: 0, 1, and 4, and the port identifiers of the tenth DMRS antenna port are: 2, 6, and 7; or ,
  • the port identifiers of the ninth DMRS antenna port are: 0, 1, 4, and 5, and the port identifiers of the tenth DMRS antenna port are: 2 and 3;
  • the port identifier of the ninth DMRS antenna port is: 0 and 1, the tenth DMRS antenna
  • the port identifiers of the ports are: 2, 3, 8 and 9; or, the port identifiers of the ninth DMRS antenna port are: 0, 1 and 6, and the port identifiers of the tenth DMRS antenna port are: 2, 8 and 9; or,
  • the port identification of the ninth DMRS antenna port is: 0, 1, 6, and 7, and the port identification of the tenth DMRS antenna port is: 2 and 3.
  • the port identification of the ninth DMRS antenna port is: : 0 and 1
  • the port identification of the tenth DMRS antenna port is: 2, 3, 4 and 5
  • the port identification of the ninth DMRS antenna port is: 0, 1, 2, and 3, the port of the tenth DMRS antenna port Identified as: 4 and 5.
  • the port identifier of the eleventh DMRS antenna port is: 0, 1, and 4
  • the port identification of the twelfth DMRS antenna port is: 2, 3, 6 and 7; or, the port identification of the eleventh DMRS antenna port is: 0, 1, 4, and 5, and the port identification of the twelfth DMRS antenna port is: : 2, 3, and 6;
  • the port identifiers of the eleventh DMRS antenna ports are: 0, 1, and 6, and the twelfth
  • the port identification of the DMRS antenna port is: 2, 3, 8 and 9; or, the port identification of the eleventh DMRS antenna port is: 0, 1, 6, and 7, and the port identification of the twelfth DMRS antenna port is: 2, 3 and 8; when the number of the above-mentioned CDM groups is 3, the port identifiers of the eleventh DMRS antenna port are: 0, 1, and 6, and the port identifiers of the twelfth DMRS antenna port are: 2, 3, 4, and 5; or The port identifiers of the eleventh DMRS antenna port are: 0, 1, 2, and 3, and the port identifiers of the twelfth DMRS antenna port are: 4, 5, and 10.
  • the port identifier of the thirteenth DMRS antenna port is: 0, 1, 6 and 7, the port identification of the fourteenth DMRS antenna port is at least one of the following: 2, 3, 8 and 9, or 4, 5, 10, and 11; or, the port identification of the thirteenth DMRS antenna port is: 2, 3, 8 and 9, the port identification of the fourteenth DMRS antenna port is: 4, 5, 10, and 11; when the number of the above-mentioned CDM groups is 3, the port identification of the thirteenth DMRS antenna port is: 0, 1 , 6, and 7, the port identifiers of the fourteenth DMRS antenna port are: 2, 3, 4, and 5.
  • a terminal device provided by an embodiment of the present invention.
  • the terminal device receives DCI sent by a network device, and according to the DCI, the terminal device uses a dual codeword to transmit a first channel (that is, PUSCH or PDSCH) corresponding to a DMRS antenna. Port, so that the terminal device can directly determine the DMRS antenna port corresponding to each codeword based on the DCI, thereby improving the PDSCH / PUSCH transmission rate, and improving communication efficiency and efficiency.
  • a first channel that is, PUSCH or PDSCH
  • the terminal device provided in the embodiment of the present invention can implement the process shown in the foregoing method embodiment. To avoid repetition, details are not described herein again.
  • the network device 400 includes: a sending module 401, where:
  • the sending module 401 is configured to send DCI to a terminal device.
  • the DCI is used to instruct the terminal device to use a dual codeword to transmit a DMRS antenna port corresponding to each codeword.
  • the first channel is PUSCH or PDSCH.
  • DCI is used to instruct a terminal device to determine the DMRS antenna port according to the DCI.
  • the DCI when the first channel is a PUSCH, the DCI is used to indicate whether the terminal device 300 repeatedly sends a PUSCH; or, when the first channel is a PDSCH, the DCI is used to indicate whether the terminal device 300 is Receive PDSCH in combination.
  • the above-mentioned DCI is used to instruct the terminal device 300 to use the dual codewords to transmit the first channel with the same DMRS antenna port corresponding to each codeword.
  • the antenna port domain in the above DCI includes at least one antenna port domain value, and one antenna port domain value is used to instruct the terminal device 300 to use a dual codeword to transmit a DMRS antenna corresponding to each codeword at least once on a first channel port.
  • the network device further includes: a generating module 402, where:
  • the generating module 402 is configured to generate a DCI according to a predetermined rule and first information.
  • the first information mentioned above includes at least one of the following: the number of occupied symbols of the front DMRS, the number of CDM groups occupied by the dataless DMRS antenna port, and the type of the DMRS; the above predetermined rule is configured by the network device 400 for the terminal device , Or, is predefined.
  • the foregoing predetermined rule includes: when the total number of DMRS antenna ports corresponding to the dual codeword is equal to 2, the first codeword corresponds to the first DMRS antenna port, and the second codeword corresponds to the second DMRS antenna port;
  • the first codeword corresponds to the third DMRS antenna port
  • the second codeword corresponds to the fourth DMRS antenna port
  • the first codeword corresponds to the fifth DMRS antenna port
  • the second codeword corresponds to the sixth DMRS antenna port
  • the first codeword corresponds to the seventh DMRS antenna port
  • the second codeword corresponds to the eighth DMRS antenna port
  • the first codeword corresponds to the ninth DMRS antenna port
  • the second codeword corresponds to the tenth DMRS antenna port
  • the first codeword corresponds to the eleventh DMRS antenna port
  • the second codeword corresponds to the twelfth DMRS antenna port
  • the first codeword corresponds to the thirteenth DMRS antenna port
  • the second codeword corresponds to the fourteenth DMRS antenna port
  • the port identifier of the first DMRS antenna port is: 0, and the port identifier of the second DMRS antenna port is: 1;
  • the type of the DMRS is the first type and the maximum number of symbols of the DMRS is 2, when the number of the CDM groups is 2, the port identifier of the first DMRS antenna port is: 0, and the port identifier of the second DMRS antenna port is: 2;
  • the port identifier of the first DMRS antenna port is: 0, and the number of the second DMRS antenna port is
  • the port identifier is at least one of the following: 2, or, 4; or, the port identifier of the first DMRS antenna port is: 2, and the port identifier of the second DMRS antenna port is: 4.
  • the type of the DMRS is the first type and the maximum number of symbols of the DMRS is 2, when the number of the CDM groups is 1, the port identifier of the third DMRS antenna port is: 0, and the fourth DMRS antenna port The port ID of the third DMRS antenna port is: 4 and 5; or, the port ID of the third DMRS antenna port is: 0 and 1, and the port ID of the fourth DMRS antenna port is: 4; when the above-mentioned number of CDM groups is 2, the third DMRS antenna The port identification of the port is: 0, the port identification of the fourth DMRS antenna port is: 2 and 3; or, the port identification of the third DMRS antenna port is: 0 and 1, and the port identification of the fourth DMRS antenna port is 2;
  • the type of the DMRS is the second type and the maximum number of symbols of the DMRS is 1 or 2, when the number of the CDM groups is 1, the port identifier of the third DMRS antenna port is: 0, and the port identifier of the fourth DMRS antenna port Are: 6 and 7; or, the port identification of the third DMRS antenna port is: 0 and 1, and the port identification of the fourth DMRS antenna port is: 6; when the number of the above-mentioned CDM groups is 2 or 3, the third DMRS antenna port The port ID of the port is: 0, the port ID of the fourth DMRS antenna port: 2 and 3; or, the port ID of the third DMRS antenna port is: 0 and 1, and the port ID of the fourth DMRS antenna port is: 2; When the number of CDM groups is 3, the port identification of the third DMRS antenna port is: 0, and the port identification of the fourth DMRS antenna port is: 2 and 4; or, the port identification of the third DMRS antenna port is: 0 and 2, the The
  • the type of the DMRS is the first type and the maximum number of symbols of the DMRS is 2, when the number of the CDM groups is 1, the port identifier of the fifth DMRS antenna port is: 0 and 1, and the sixth DMRS
  • the port identifiers of the antenna ports are: 4 and 5; when the number of CDM groups is 2, the port identifier of the fifth DMRS antenna port is: 0, and the port identifier of the sixth DMRS antenna port is: 2, 3, and 6; or, The port identities of the fifth DMRS antenna port are: 0 and 1, and the port identities of the sixth DMRS antenna port are: 2 and 3; or, the port identities of the fifth DMRS antenna port are: 0, 1, and 4, and the sixth DMRS antenna The port identifier of the port is: 2;
  • the type of the DMRS is the second type and the maximum number of symbols of the DMRS is 1 or 2, when the number of the CDM groups is 1, the port identifiers of the fifth DMRS antenna port are: 0 and 1, and the number of the sixth DMRS antenna port is The port identifiers are: 6 and 7; when the number of CDM groups is 2 or 3, the port identifier of the fifth DMRS antenna port is: 0, and the port identifier of the sixth DMRS antenna port is: 2, 3, and 8;
  • the port identification of the five DMRS antenna ports is: 0 and 1, and the port identification of the sixth DMRS antenna port is at least one of the following: 2 and 3, or, 4 and 5; or, the port identification of the fifth DMRS antenna port is: 2 And 3, the port identification of the sixth DMRS antenna port is: 4 and 5; or, the port identification of the fifth DMRS antenna port is: 0, 1, and 6, and the port identification of the sixth DMRS antenna port is: 2; in the above CDM When the number
  • the port identifier of the seventh DMRS antenna port is: 0, and the eighth DMRS antenna port
  • the port identifiers are: 2, 3, 6 and 7; or, the port identifiers of the seventh DMRS antenna port are: 0 and 1, and the port identifiers of the eighth DMRS antenna port are: 2, 3, and 6; or, the seventh DMRS
  • the port identification of the antenna port is: 0, 1, and 4, and the port identification of the eighth DMRS antenna port is: 2 and 3; or, the port identification of the seventh DMRS antenna port is: 0, 1, 4, and 5, and the eighth DMRS
  • the port identification of the antenna port is: 2;
  • the port identifier of the seventh DMRS antenna port is: 0, and the number of the eighth DMRS antenna port is The port identifiers are: 2, 3, 8 and 9; or, the port identifiers of the seventh DMRS antenna port are: 0 and 1, and the port identifiers of the eighth DMRS antenna port are: 2, 3, and 8; or, the seventh DMRS antenna
  • the port identifiers of the ports are: 0, 1, and 6, and the port identifiers of the eighth DMRS antenna port are: 2 and 3; or, the port identifiers of the seventh DMRS antenna port are: 0, 1, 6, and 7, and the eighth DMRS antenna
  • the port identifier of the port is: 2; when the number of CDM groups is 3, the port identifier of the seventh DMRS antenna port is: 0, and the port identifier of the eighth DMRS antenna port is: 2, 3, 4,
  • the port identifiers are: 4, 5, and 10; or, the port identifiers of the seventh DMRS antenna port are: 0, 1, and 2, and the eighth The port identifiers of the DMRS antenna ports are: 4 and 5; or, the port identifiers of the seventh DMRS antenna port are: 0, 1, and 6, and the port identifiers of the eighth DMRS antenna port are: 2 and 4; or, the seventh DMRS antenna
  • the port identification of the port is: 0, 1, 2 and 3, and the port identification of the eighth DMRS antenna port is: 4.
  • the port identifier of the ninth DMRS antenna port is: 0 and 1, the tenth DMRS
  • the port identifiers of the antenna ports are: 2, 3, 6, and 7; or, the port identifiers of the ninth DMRS antenna port are: 0, 1, and 4, and the port identifiers of the tenth DMRS antenna port are: 2, 6, and 7; or ,
  • the port identifiers of the ninth DMRS antenna port are: 0, 1, 4, and 5, and the port identifiers of the tenth DMRS antenna port are: 2 and 3;
  • the port identifier of the ninth DMRS antenna port is: 0 and 1, the tenth DMRS antenna
  • the port identifiers of the ports are: 2, 3, 8 and 9; or, the port identifiers of the ninth DMRS antenna port are: 0, 1 and 6, and the port identifiers of the tenth DMRS antenna port are: 2, 8 and 9; or,
  • the port identification of the ninth DMRS antenna port is: 0, 1, 6, and 7, and the port identification of the tenth DMRS antenna port is: 2 and 3.
  • the port identification of the ninth DMRS antenna port is: : 0 and 1
  • the port identification of the tenth DMRS antenna port is: 2, 3, 4 and 5
  • the port identification of the ninth DMRS antenna port is: 0, 1, 2, and 3, the port of the tenth DMRS antenna port Identified as: 4 and 5.
  • the port identifier of the eleventh DMRS antenna port is: 0, 1, and 4
  • the port identification of the twelfth DMRS antenna port is: 2, 3, 6 and 7; or, the port identification of the eleventh DMRS antenna port is: 0, 1, 4, and 5, and the port identification of the twelfth DMRS antenna port is: : 2, 3, and 6;
  • the port identifiers of the eleventh DMRS antenna ports are: 0, 1, and 6, and the twelfth
  • the port identification of the DMRS antenna port is: 2, 3, 8 and 9; or, the port identification of the eleventh DMRS antenna port is: 0, 1, 6, and 7, and the port identification of the twelfth DMRS antenna port is: 2, 3 and 8; when the number of the above-mentioned CDM groups is 3, the port identifiers of the eleventh DMRS antenna port are: 0, 1, and 6, and the port identifiers of the twelfth DMRS antenna port are: 2, 3, 4, and 5; or The port identifiers of the eleventh DMRS antenna port are: 0, 1, 2, and 3, and the port identifiers of the twelfth DMRS antenna port are: 4, 5, and 10.
  • the port identifier of the thirteenth DMRS antenna port is: 0, 1, 6 and 7, the port identification of the fourteenth DMRS antenna port is at least one of the following: 2, 3, 8 and 9, or 4, 5, 10, and 11; or, the port identification of the thirteenth DMRS antenna port is: 2, 3, 8 and 9, the port identification of the fourteenth DMRS antenna port is: 4, 5, 10, and 11; when the number of the above-mentioned CDM groups is 3, the port identification of the thirteenth DMRS antenna port is: 0, 1 , 6, and 7, the port identifiers of the fourteenth DMRS antenna port are: 2, 3, 4, and 5.
  • the network equipment device provided in the embodiment of the present invention instructs the terminal device through DCI to the terminal device when the terminal device uses dual codewords to transmit the first channel (that is, PUSCH or PDSCH) corresponding to the DMRS antenna port of each codeword, so that the terminal The device can directly determine the DMRS antenna port corresponding to each codeword based on the DCI, thereby improving the PDSCH / PUSCH transmission rate, and improving communication efficiency and efficiency.
  • the network device provided by the embodiment of the present invention can implement the process shown in the foregoing method embodiment. To avoid repetition, details are not described herein again.
  • FIG. 5 is a schematic diagram of a hardware structure of a terminal device that implements various embodiments of the present invention.
  • the terminal device 100 includes, but is not limited to, a radio frequency unit 101, a network module 102, an audio output unit 103, an input unit 104, a sensor 105, and a display unit. 106, a user input unit 107, an interface unit 108, a memory 109, a processor 110, and a power supply 111.
  • the terminal device 100 may include more or fewer components than shown in the figure, or combine some components, or Different component arrangements.
  • the terminal device 100 includes, but is not limited to, a mobile phone, a tablet computer, a notebook computer, a palmtop computer, a vehicle-mounted terminal device, a wearable device, and a pedometer.
  • the radio frequency unit 101 is configured to receive DCI from a network device.
  • the DCI mentioned above is used to instruct the terminal device to use a DMRS antenna port corresponding to each codeword when the first channel is transmitted using dual codewords.
  • the first channel is PUSCH or PDSCH; a processor 110, configured to determine a DMRS antenna port according to the DCI received by the radio frequency unit 101.
  • a terminal device provided by an embodiment of the present invention.
  • the terminal device receives DCI sent by a network device, and according to the DCI, the terminal device uses a dual codeword to transmit a first channel (that is, PUSCH or PDSCH) corresponding to a DMRS antenna. Port, so that the terminal device can directly determine the DMRS antenna port corresponding to each codeword based on the DCI, thereby improving the PDSCH / PUSCH transmission rate, and improving communication efficiency and efficiency.
  • a first channel that is, PUSCH or PDSCH
  • the radio frequency unit 101 may be used to receive and send signals during the transmission and reception of information or during a call. Specifically, the downlink data from the base station is received and processed by the processor 110; The uplink data is sent to the base station.
  • the radio frequency unit 101 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like.
  • the radio frequency unit 101 can also communicate with a network and other devices through a wireless communication system.
  • the terminal device 100 provides users with wireless broadband Internet access through the network module 102, such as helping users to send and receive email, browse web pages, and access streaming media.
  • the audio output unit 103 may convert audio data received by the radio frequency unit 101 or the network module 102 or stored in the memory 109 into audio signals and output them as sound. Moreover, the audio output unit 103 may also provide audio output (for example, a call signal receiving sound, a message receiving sound, etc.) related to a specific function performed by the terminal device 100.
  • the audio output unit 103 includes a speaker, a buzzer, a receiver, and the like.
  • the input unit 104 is used for receiving audio or video signals.
  • the input unit 104 may include a graphics processing unit (GPU) 1041 and a microphone 1042.
  • the graphics processor 1041 pairs images of still pictures or videos obtained by an image capture device (such as a camera) in a video capture mode or an image capture mode. Data is processed.
  • the processed image frames may be displayed on the display unit 106.
  • the image frames processed by the graphics processor 1041 may be stored in the memory 109 (or other storage medium) or transmitted via the radio frequency unit 101 or the network module 102.
  • the microphone 1042 can receive sound, and can process such sound into audio data.
  • the processed audio data can be converted into a format that can be transmitted to a mobile communication base station via the radio frequency unit 101 in the case of a telephone call mode and output.
  • the terminal device 100 further includes at least one sensor 105, such as a light sensor, a motion sensor, and other sensors.
  • the light sensor includes an ambient light sensor and a proximity sensor.
  • the ambient light sensor can adjust the brightness of the display panel 1061 according to the brightness of the ambient light.
  • the proximity sensor can close the display panel 1061 and the display panel 1061 when the terminal device 100 is moved to the ear. / Or backlight.
  • the accelerometer sensor can detect the magnitude of acceleration in various directions (usually three axes), and can detect the magnitude and direction of gravity when it is stationary, which can be used to identify the attitude of the terminal device (such as horizontal and vertical screen switching, related games , Magnetometer attitude calibration), vibration recognition related functions (such as pedometer, tap), etc .; sensor 105 can also include fingerprint sensor, pressure sensor, iris sensor, molecular sensor, gyroscope, barometer, hygrometer, thermometer, Infrared sensors and the like are not repeated here.
  • the display unit 106 is configured to display information input by the user or information provided to the user.
  • the display unit 106 may include a display panel 1061, and the display panel 1061 may be configured in the form of a liquid crystal display (LCD), an organic light-emitting diode (OLED), or the like.
  • LCD liquid crystal display
  • OLED organic light-emitting diode
  • the user input unit 107 may be configured to receive inputted numeric or character information and generate key signal inputs related to user settings and function control of the terminal device 100.
  • the user input unit 107 includes a touch panel 1071 and other input devices 1072.
  • Touch panel 1071 also known as touch screen, can collect user's touch operations on or near it (such as the user using a finger, stylus, etc. any suitable object or accessory on touch panel 1071 or near touch panel 1071 operating).
  • the touch panel 1071 may include two parts, a touch detection device and a touch controller.
  • the touch detection device detects the user's touch position, and detects the signal caused by the touch operation, and transmits the signal to the touch controller; the touch controller receives touch information from the touch detection device, converts it into contact coordinates, and sends it
  • the processor 110 receives and executes a command sent by the processor 110.
  • various types such as resistive, capacitive, infrared, and surface acoustic wave can be used to implement the touch panel 1071.
  • the user input unit 107 may also include other input devices 1072.
  • other input devices 1072 may include, but are not limited to, a physical keyboard, function keys (such as volume control keys, switch keys, etc.), a trackball, a mouse, and a joystick, and details are not described herein again.
  • the touch panel 1071 may be overlaid on the display panel 1061.
  • the touch panel 1071 detects a touch operation on or near the touch panel 1071, the touch panel 1071 transmits the touch operation to the processor 110 to determine the type of the touch event.
  • the type of event provides a corresponding visual output on the display panel 1061.
  • the touch panel 1071 and the display panel 1061 are implemented as two independent components to implement the input and output functions of the terminal device 100, in some embodiments, the touch panel 1071 and the display panel 1061 can be implemented.
  • the integration implements the input and output functions of the terminal device 100, which is not specifically limited here.
  • the interface unit 108 is an interface through which an external device is connected to the terminal device 100.
  • the external device may include a wired or wireless headset port, an external power (or battery charger) port, a wired or wireless data port, a memory card port, a port for connecting a device with an identification module, and audio input / output (I / O) port, video I / O port, headphone port, and more.
  • the interface unit 108 may be used to receive an input (e.g., data information, power, etc.) from an external device and transmit the received input to one or more elements within the terminal device 100 or may be used to connect the terminal device 100 and an external device. Transfer data between devices.
  • the memory 109 may be used to store software programs and various data.
  • the memory 109 may mainly include a storage program area and a storage data area, where the storage program area may store an operating system, at least one application required by a function (such as a sound playback function, an image playback function, etc.), etc .; the storage data area may store data according to Data (such as audio data, phone book, etc.) created by the use of mobile phones.
  • the memory 109 may include a high-speed random access memory, and may further include a non-volatile memory, such as at least one magnetic disk storage device, a flash memory device, or other volatile solid-state storage devices.
  • the processor 110 is a control center of the terminal device 100, and connects various parts of the entire terminal device 100 by using various interfaces and lines, and runs or executes software programs and / or modules stored in the memory 109, and calls stored in the memory 109 Data, perform various functions of the terminal device 100 and process the data, so as to monitor the terminal device 100 as a whole.
  • the processor 110 may include one or more processing units; optionally, the processor 110 may integrate an application processor and a modem processor, wherein the application processor mainly processes an operating system, a user interface, and an application program, etc.
  • the tuning processor mainly handles wireless communication. It can be understood that the foregoing modem processor may not be integrated into the processor 110.
  • the terminal device 100 may further include a power source 111 (such as a battery) for supplying power to various components.
  • a power source 111 such as a battery
  • the power source 111 may be logically connected to the processor 110 through a power management system, thereby implementing management of charging, discharging, and power consumption through the power management system. Management and other functions.
  • the terminal device 100 includes some functional modules that are not shown, and details are not described herein again.
  • FIG. 6 is a schematic diagram of a hardware structure of a network device according to an embodiment of the present invention.
  • the network device 800 includes a processor 801, a transceiver 802, a memory 803, a user interface 804, and a bus interface.
  • the transceiver 802 is configured to send DCI to a terminal device.
  • the DCI mentioned above is used to instruct the terminal device to use a DMRS antenna port corresponding to each codeword when the first channel is transmitted using dual codewords; the first channel is PUSCH or PDSCH; the above DCI is used to instruct a terminal device to determine a DMRS antenna port according to the DCI.
  • the network device provided in the embodiment of the present invention instructs the terminal device through DCI to indicate to the terminal device that the terminal device adopts a dual codeword to transmit a DMRS antenna port corresponding to each codeword when the first channel (that is, PUSCH or PDSCH) is transmitted, so that the terminal device Based on the DCI, the DMRS antenna port corresponding to each codeword can be directly determined, thereby improving the PDSCH / PUSCH transmission rate, and improving communication efficiency and efficiency.
  • the first channel that is, PUSCH or PDSCH
  • the bus architecture may include any number of interconnected buses and bridges. Specifically, one or more processors represented by the processor 801 and various circuits of the memory represented by the memory 803 are linked together. .
  • the bus architecture can also link various other circuits such as peripherals, voltage regulators, and power management circuits, which are well known in the art, so they are not described further herein.
  • the bus interface provides an interface.
  • the transceiver 802 may be multiple elements, including a transmitter and a receiver, providing a unit for communicating with various other devices over a transmission medium.
  • the user interface 804 may also be an interface capable of externally connecting and connecting the required devices.
  • the connected devices include, but are not limited to, a keypad, a display, a speaker, a microphone, a joystick, and the like.
  • the processor 801 is responsible for managing the bus architecture and general processing, and the memory 803 may store data used by the processor 801 when performing operations.
  • the network device 800 also includes some functional modules that are not shown, and details are not described herein again.
  • an embodiment of the present invention further provides a terminal device including a processor, a memory, and a computer program stored in the memory and executable on the processor.
  • a terminal device including a processor, a memory, and a computer program stored in the memory and executable on the processor.
  • the computer program is executed by the processor, the computer program in the foregoing embodiment is implemented.
  • the process of demodulating the reference signal antenna port mapping method can achieve the same technical effect. To avoid repetition, it will not be repeated here.
  • an embodiment of the present invention further provides a network device, including a processor, a memory, and a computer program stored on the memory and executable on the processor.
  • a network device including a processor, a memory, and a computer program stored on the memory and executable on the processor.
  • the computer program is executed by the processor, the computer program in the foregoing embodiment is implemented.
  • the process of demodulating the reference signal antenna port mapping method can achieve the same technical effect. To avoid repetition, it will not be repeated here.
  • An embodiment of the present invention further provides a computer-readable storage medium.
  • a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, a plurality of demodulation reference signal antenna port mapping methods in the foregoing embodiments are implemented. Process, and can achieve the same technical effect, in order to avoid repetition, it will not be repeated here.
  • a computer-readable storage medium such as a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, and the like.
  • the methods in the above embodiments can be implemented by means of software plus a necessary universal hardware platform, and of course, also by hardware, but in many cases the former is better.
  • Implementation Based on such an understanding, the technical solution of the present invention, in essence, or a part that contributes to the prior art, can be embodied in the form of a software product, which is stored in a storage medium (such as ROM / RAM, magnetic disk, The optical disc) includes several instructions for causing a terminal device (which may be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) to execute the methods described in the embodiments of the present invention.
  • a terminal device which may be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.

Landscapes

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

Abstract

L'invention concerne un procédé de mise en correspondance de port d'antenne de signal de référence de démodulation, un dispositif terminal et un dispositif de réseau, qui se rapportent au domaine technique des communications et sont utilisés pour résoudre le problème d'un faible débit de transmission provoqué par un dispositif terminal qui utilise un procédé de mise en correspondance de port d'antenne DMRS classique pour transmettre un PDSCH/PUSCH. Le procédé consiste à : recevoir des informations de commande de liaison descendante (DCI) provenant d'un dispositif de réseau, les DCI étant utilisées pour indiquer un port d'antenne DMRS correspondant à chaque mot de code lorsqu'un dispositif terminal utilise des mots de code doubles pour transmettre un premier canal ; et le premier canal est un canal partagé de liaison montante physique (PUSCH) ou un canal partagé de liaison descendante physique (PDSCH) ; et selon les DCI, déterminer le port d'antenne DMRS. La présente invention s'applique à la mise en correspondance de port d'antenne.
PCT/CN2019/098221 2018-08-24 2019-07-29 Procédé de mise en correspondance de port d'antenne de signal de référence de démodulation, et dispositif terminal et dispositif de réseau WO2020038194A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201810974425.0A CN110858800B (zh) 2018-08-24 2018-08-24 解调参考信号天线端口映射方法、终端设备及网络设备
CN201810974425.0 2018-08-24

Publications (1)

Publication Number Publication Date
WO2020038194A1 true WO2020038194A1 (fr) 2020-02-27

Family

ID=69592315

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2019/098221 WO2020038194A1 (fr) 2018-08-24 2019-07-29 Procédé de mise en correspondance de port d'antenne de signal de référence de démodulation, et dispositif terminal et dispositif de réseau

Country Status (2)

Country Link
CN (1) CN110858800B (fr)
WO (1) WO2020038194A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114257354B (zh) * 2020-09-22 2023-10-17 中国移动通信有限公司研究院 一种传输方法、终端设备及网络侧设备
CN114698104A (zh) * 2020-12-25 2022-07-01 华为技术有限公司 一种指示天线端口的方法、装置与系统
CN117640033A (zh) * 2022-08-12 2024-03-01 大唐移动通信设备有限公司 Dmrs端口的确定方法、设备、装置及存储介质

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103299574A (zh) * 2011-01-05 2013-09-11 瑞典爱立信有限公司 用于传输授权的高效信息映射
US20170338929A1 (en) * 2010-01-19 2017-11-23 Lg Electronics Inc. Method and base station for transmitting downstream link data, and method and user device for receiving downstream link data
US20180042028A1 (en) * 2016-08-04 2018-02-08 Samsung Electronics Co., Ltd. Method and apparatus for coordinating multi-point transmission in advanced wireless systems
CN108111275A (zh) * 2017-08-11 2018-06-01 中兴通讯股份有限公司 参考信号信息的配置方法及装置

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101740050B1 (ko) * 2009-09-16 2017-05-26 엘지전자 주식회사 다중 안테나 시스템에서 참조 신호 전송 방법 및 장치
CA2774414C (fr) * 2009-09-16 2017-02-28 Lg Electronics Inc. Procede et appareil d'emission d'un signal de reference dans un systeme multi-antenne
US8520658B2 (en) * 2010-06-29 2013-08-27 Qualcomm Incorporated Demodulation reference signals for retransmission in wireless communication
CN102573094B (zh) * 2012-01-17 2015-04-08 电信科学技术研究院 一种传输dci的方法及装置
CN107889222B (zh) * 2016-09-29 2022-03-08 华为技术有限公司 信号传输方法、终端设备、网络设备和通信系统

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20170338929A1 (en) * 2010-01-19 2017-11-23 Lg Electronics Inc. Method and base station for transmitting downstream link data, and method and user device for receiving downstream link data
CN103299574A (zh) * 2011-01-05 2013-09-11 瑞典爱立信有限公司 用于传输授权的高效信息映射
US20180042028A1 (en) * 2016-08-04 2018-02-08 Samsung Electronics Co., Ltd. Method and apparatus for coordinating multi-point transmission in advanced wireless systems
CN108111275A (zh) * 2017-08-11 2018-06-01 中兴通讯股份有限公司 参考信号信息的配置方法及装置

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
NOKIA ET AL.: "Remaining Issue on DMRS Port Mapping and its Impact on CQI/MCS", 3GPP TSG RAN WG1 MEETING #92BIS R1-1805100, 7 April 2018 (2018-04-07), pages 1 - 5, XP051414374 *

Also Published As

Publication number Publication date
CN110858800B (zh) 2021-05-11
CN110858800A (zh) 2020-03-03

Similar Documents

Publication Publication Date Title
WO2020063215A1 (fr) Procédé de présentation d'un rapport de csi, dispositif terminal et dispositif réseau
WO2020029782A1 (fr) Procédé de saut de fréquence pendant une transmission répétée de pusch, terminal et dispositif réseau
WO2020258928A1 (fr) Procédé de transmission de données et dispositif terminal
CN110944351B (zh) 一种测量配置方法、设备及系统
CN112788783B (zh) 一种中继连接建立方法及设备
WO2020038194A1 (fr) Procédé de mise en correspondance de port d'antenne de signal de référence de démodulation, et dispositif terminal et dispositif de réseau
CN110096375B (zh) 一种应用程序共享数据方法、装置及计算机可读存储介质
WO2019214706A1 (fr) Procédé de commande d'accès, procédé de diffusion de message, et dispositif associé
WO2020015681A1 (fr) Procédé, appareil, et système d'indication de mesure
WO2020228529A1 (fr) Procédé, dispositif et système de configuration pour configuration de planification semi-statique
WO2020228537A1 (fr) Procédé de détermination de ressources, procédé d'indication de ressources, terminal et dispositif coté réseau
WO2019095917A1 (fr) Procédé de détection d'indication de format de créneau et procédé et dispositif de configuration
CN111800794B (zh) 解调参考信号位置的确定方法及设备
JP7322346B2 (ja) リソース設定方法及び機器
WO2019242482A1 (fr) Procédé de traitement de commande et dispositif terminal
WO2020192673A1 (fr) Procédé de configuration de ressources, procédé de détermination de ressources, dispositif côté réseau, et terminal
WO2021000778A1 (fr) Procédé de rejet de transmission en liaison montante, procédé de configuration de rejet de transmission en liaison montante et dispositif associé
WO2020249116A1 (fr) Procédé, dispositif, et système de mesure
WO2020147815A1 (fr) Procédé et dispositif de transmission de radiorecherche
WO2020143382A1 (fr) Procédé de transmission en liaison montante, terminal et dispositif de réseau
WO2020088475A1 (fr) Procédé et dispositif de transmission d'informations de rétroaction
WO2019242464A1 (fr) Procédé, dispositif, et système d'indication de ressource
US20220322051A1 (en) Multicast service processing method, multicast service configuration method, and communications device
WO2022152017A1 (fr) Procédé de transmission d'informations, terminal et dispositif de réseau
WO2021204217A1 (fr) Procédé, dispositif et système d'indication d'un indice de précodage

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 19852138

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 19852138

Country of ref document: EP

Kind code of ref document: A1