WO2018127158A1 - 一种数据传输的方法、网络侧设备及终端设备 - Google Patents

一种数据传输的方法、网络侧设备及终端设备 Download PDF

Info

Publication number
WO2018127158A1
WO2018127158A1 PCT/CN2018/071659 CN2018071659W WO2018127158A1 WO 2018127158 A1 WO2018127158 A1 WO 2018127158A1 CN 2018071659 W CN2018071659 W CN 2018071659W WO 2018127158 A1 WO2018127158 A1 WO 2018127158A1
Authority
WO
WIPO (PCT)
Prior art keywords
network side
side device
demodulation reference
reference signal
signal group
Prior art date
Application number
PCT/CN2018/071659
Other languages
English (en)
French (fr)
Inventor
王婷
任海豹
窦圣跃
李元杰
Original Assignee
华为技术有限公司
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 华为技术有限公司 filed Critical 华为技术有限公司
Publication of WO2018127158A1 publication Critical patent/WO2018127158A1/zh

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
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/0413—MIMO systems
    • H04B7/0452—Multi-user MIMO systems
    • 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

Definitions

  • the present invention relates to the field of communications technologies, and in particular, to a data transmission method, a network side device, and a terminal device.
  • MIMO technology also known as multi-antenna technology
  • LTE Long Term Evolution
  • DM-RS Demodulation-Reference Signal
  • the reference signal such as a user-level reference signal in an existing LTE system, can be transmitted as a demodulation reference signal through one or more antenna ports of antenna port 5, antenna port 7, antenna port 8, or antenna port 7-14. Therefore, these antenna ports for transmitting DM-RS are also referred to as DM-RS ports.
  • data is also transmitted on different antenna ports, for example, one or more antenna ports such as antenna port 5, antenna port 7, and antenna port 8. These antenna ports for transmitting data are also called data ports. .
  • the receiving end can perform channel estimation and data demodulation by using the DM-RS transmitted on the same antenna port as the data port.
  • LTE introduces a new transmission mode, Transport Mode 9, which supports eight antenna ports and supports multi-user MIMO transmission.
  • the base station needs to indicate the physical downlink shared channel of the user in the physical downlink control channel, such as the Physical Downlink Control Channel (PDCCH) in LTE (for example, PDSCH in LTE, English: Physical Downlink Shared Channel)
  • PDCH Physical Downlink Control Channel
  • the number of precoding layers corresponding to the data and the antenna port number corresponding to the DM-RS The terminal device can detect how many layers of the received PDSCH data and the corresponding antenna ports of each layer by detecting the corresponding indication field in the PDCCH.
  • the terminal device performs channel estimation through the DM-RS transmitted by the antenna port, and then performs data demodulation of the PDSCH.
  • LTE introduced the antenna port quasi-co-location in order to support multi-point coordinated transmission. It is referred to as QCL in the LTE system (English: Quasi) Co-Located) concept. Signals sent from the QCL's antenna port will pass the same large-scale fading. Large-scale fading may include one or more of delay spread, Doppler spread, Doppler shift, average channel gain, and average delay, or other parameters used to characterize large-scale channel characteristics.
  • a new transmission mode that is, the transmission mode 10
  • the physical downlink shared channel resource element mapping is mainly introduced.
  • the quasi-co-location indication referred to as PQI (English: PDSCH RE Mapping and QCL Indicator) in the LTE system, is used to indicate from which base station the downlink data is sent, and the corresponding large-scale characteristics of the channel and which group of antenna ports Consistent.
  • the UE can learn the radio channel parameters corresponding to which group of antenna ports to use for demodulating the downlink data according to the PQI and the PDSCH mapping message element configured by the Radio Resource Control (RRC) signaling.
  • RRC Radio Resource Control
  • the embodiments of the present invention provide a data transmission method, a network side device, and a terminal device, which are used to implement orthogonal transmission demodulation reference signals by different base stations under cooperative transmission.
  • a data transmission method including:
  • the first network side device Determining, by the first network side device, the first information, where the first information is different from the first information used by the second network side device; the first network side device determining, according to the first information, a demodulation reference signal group;
  • the demodulation reference signal group includes one or more demodulation reference signals; the first network side device transmits one or more demodulation reference signals in the demodulation reference signal group to the terminal.
  • the first network side device determines, according to the first information, the demodulation reference signal group to be used, so that the demodulation reference signal group used by the first network side device and the demodulation used by the second network side device are used.
  • the reference signal group is different, and the first network side device and the second network side device can be used to adopt orthogonal demodulation reference signals, so as to avoid the problem that the terminal demodulation capability is poor due to the fact that the different base stations adopt the demodulation reference signal cannot be orthogonal. .
  • the first information is a cell identifier of a cell of the first network side device, and the first network side device is configured according to the first
  • the information determining the demodulation reference signal group includes: the first network side device determining the demodulation reference signal group corresponding to the cell identifier of the cell.
  • the first network side device only needs to know the cell identity of its own cell, and notifies the second network side device, and learns the demodulation reference signal group used by itself according to the corresponding relationship between the cell identifier of the cell and the demodulation reference signal group. It is ensured that the demodulation reference signal group used is different from the second network side device.
  • the first information is a codeword used by the first network side device, and the first network side device determines a solution according to the first information.
  • adjusting the reference signal group comprising: the first network side device determining a demodulation reference signal group corresponding to the codeword.
  • the first network side device only needs to know the codeword used by itself, and notifies the second network side device, that is, the codeword that can be used by the second network side device, and according to the correspondence between the codeword and the demodulation reference signal group. It is known that the demodulation reference signal group used by itself ensures that the demodulation reference signal group used is different from that of the second network side device.
  • the first network side device determines a demodulation reference signal group corresponding to the codeword The first network side device determines, according to the correspondence between the codeword and the antenna port set, the demodulation reference signal group corresponding to the codeword, where the antenna port in the antenna port set is the demodulation reference signal.
  • the first information is transport layer information used by the first network side device, and the first network side device is determined according to the first information
  • Demodulating the reference signal group includes: the first network side device determining a demodulation reference signal group corresponding to the transport layer information.
  • the first network side device determines a demodulation reference signal corresponding to the transport layer information
  • the group includes: the first network side device determines, according to a correspondence between the transport layer information and the antenna port set, a demodulation reference signal group corresponding to the transport layer information, where the antenna port in the antenna port set is the solution Adjusting an antenna port of the demodulation reference signal included in the reference signal group; and/or corresponding to the pilot pattern or time-frequency resource of the demodulation reference signal in the demodulation reference signal group according to the transmission layer information and the first network side device a relationship, determining a demodulation reference signal group corresponding to the transmission layer information; and/or a correspondence relationship between the transmission layer information and a demodulation reference signal sequence of the demodulation reference signal in the demodulation reference signal group by the first network side device Determining a demodulation reference signal group corresponding to the transport layer information.
  • the first network side device determines the first information
  • the method includes: the first network side device sending the first information to the second network side device, so that the second network side device determines the second network side device The demodulation reference signal group used.
  • the method further includes: the first network side device sending indication information to the second network side device and/or the terminal, the indication information And a demodulation reference signal group for indicating use by the first network side device and/or a demodulation reference signal group for indicating use by the second network side device.
  • the method further includes: the first network side device sending the first information of the first network side device to the terminal, so that the terminal determines the first network The demodulation reference signal group used by the side device.
  • a method of data transmission including:
  • the first network side device receives the first information of the first network side device that is sent by the first network side device, where the first information of the first network side device is different from the first information of the second network side device; Determining, by the second network side device, first information of the second network side device according to the first information of the first network side device; the second network side device determining, according to the second information, a demodulation reference signal group; The two network side devices send one or more demodulation reference signals in the demodulation reference signal group to the terminal.
  • the method further includes: the second network side device receiving the indication information sent by the first network side device, where the indication information is used to indicate Demodulation reference signal groups used by the first network side device and/or demodulation reference signal groups used to indicate use by the second network side device.
  • the first information of the second network side device is a cell identifier of a cell of the second network side device, and the second network side And determining, by the second network side device, the demodulation reference signal group corresponding to the cell identifier of the cell of the second network side device, where the device determines the demodulation reference signal group according to the first information of the second network side device.
  • the first information of the second network side device is a codeword used by the second network side device, and the second network side device is configured according to the second network side device The first information of the second network side device determines the demodulation reference signal group, and the second network side device determines the demodulation reference signal group corresponding to the codeword.
  • the second network side device only needs to know the codeword used by the first network side device, that is, the codeword that needs to be used, so that the second network side device can obtain the corresponding relationship between the codeword and the demodulation reference signal group. Knowing the demodulation reference signal group used by itself ensures that the demodulation reference signal group used is different from that of the first network side device.
  • the second network side device determines a demodulation reference signal group corresponding to the codeword The second network side device determines, according to the correspondence between the codeword and the antenna port set, the demodulation reference signal group corresponding to the codeword, where the antenna port in the antenna port set is the demodulation reference signal.
  • An antenna port of the demodulation reference signal included in the group; and/or the second network side device determines the correspondence between the codeword and the pilot pattern or the time-frequency resource of the demodulation reference signal in the demodulation reference signal group Demodulating a reference signal group corresponding to the codeword; and/or the second network side device determining the codeword according to a correspondence between the codeword and a demodulation reference signal sequence of the demodulation reference signal in the demodulation reference signal group Corresponding demodulation reference signal group.
  • the first information of the second network side device is the transport layer information used by the second network side device, and the second network side device is configured according to the second network side device
  • the first information of the second network side device determines a demodulation reference signal group, and the second network side device determines a demodulation reference signal group corresponding to the transport layer information.
  • the second network side device determines a demodulation reference signal corresponding to the transport layer information
  • the group includes: the second network side device determines, according to a correspondence between the transport layer information and the antenna port set, a demodulation reference signal group corresponding to the transport layer information, where the antenna port in the antenna port set is the solution Adjusting an antenna port of the demodulation reference signal included in the reference signal group; and/or corresponding to the pilot pattern or time-frequency resource of the demodulation reference signal in the demodulation reference signal group according to the transmission layer information and the second network side device a relationship, determining a demodulation reference signal group corresponding to the transmission layer information; and/or a correspondence relationship between the transmission layer information and a demodulation reference signal sequence of the demodulation reference signal in the demodulation reference signal group by the second network side device Determining a demodulation reference signal group corresponding to the transport layer information.
  • the method further includes: the second network side device sending the second network to the terminal First information of the side device, so that the terminal determines a demodulation reference signal group used by the second network side device.
  • a method for data transmission including:
  • the terminal receives the first information of the first network side device that is sent by the first network side device, and the first information of the second network side device that is sent by the second network side device; the first information and the second information of the first network side device
  • the first information of the network side device is different; the terminal determines, according to the first information of the first network side device, a demodulation reference signal group used by the first network side device, and according to the second network side device
  • the first information determines a demodulation reference signal group used by the second network side device;
  • the demodulation reference signal group includes one or more demodulation reference signals;
  • the terminal uses a solution according to the first network side device Demodulating one or more demodulation reference signals in the reference signal group to demodulate the first partial data received from the first network side device, and according to one of the demodulation reference signal groups used by the second network side device Or a plurality of demodulation reference signals demodulate the second portion of data received from the second network side device.
  • the first information of the first network side device is a cell identifier of a cell of the first network side device;
  • the first information of the first network side device, the demodulation reference signal group used by the first network side device includes: the terminal determining the demodulation reference signal corresponding to a cell identifier of a cell of the first network side device group.
  • the first information of the first network side device is a codeword used by the first network side device
  • the terminal is configured according to the first network
  • the first information of the side device determines the demodulation reference signal group used by the first network side device, and the method includes: the terminal determining a demodulation reference signal group corresponding to the codeword used by the first network side device.
  • the terminal determines a demodulation corresponding to a codeword used by the first network side device
  • the reference signal group includes: determining, by the terminal, the demodulation reference signal group corresponding to the codeword used by the first network side device according to the correspondence between the codeword and the antenna port set, where the antenna port in the antenna port set is And demodulating the antenna port of the demodulation reference signal included in the reference signal group; and/or the terminal according to the correspondence between the codeword and the pilot pattern or the time-frequency resource of the demodulation reference signal in the demodulation reference signal group, Determining, by the first network side device, a demodulation reference signal group corresponding to the codeword used by the first network side device; and/or the terminal according to the correspondence between the codeword and the demodulation reference signal sequence of the demodulation reference signal in the demodulation reference signal group, Determining a demodulation reference signal group corresponding to
  • the first information of the first network side device is the transport layer information used by the first network side device
  • the terminal is configured according to the first
  • the first information of the network side device determines the demodulation reference signal group used by the first network side device, and the method includes: the terminal determining a demodulation reference signal group corresponding to the transport layer information used by the first network side device.
  • the terminal determines a solution corresponding to the transport layer information used by the first network side device And adjusting, by the terminal, the demodulation reference signal group corresponding to the transport layer information used by the first network side device according to the correspondence between the transport layer information and the antenna port set, where the antenna port set is The antenna port is an antenna port of the demodulation reference signal included in the demodulation reference signal group; and/or the pilot pattern or time-frequency resource of the demodulation reference signal in the demodulation reference signal group according to the transmission layer information and the demodulation reference signal group Corresponding relationship, determining a demodulation reference signal group corresponding to the transmission layer information used by the first network side device; and/or demodulation reference of the demodulation reference signal in the demodulation reference signal group according to the transmission layer information and the terminal according to the transmission layer information Determining a correspondence between the signal sequences, and determining a demodulation reference signal group
  • the first information of the second network side device is a cell identifier of the cell of the second network side device; the terminal determines, according to the first information of the second network side device, the demodulation used by the second network side device And the reference signal group includes: determining, by the terminal, a demodulation reference signal group corresponding to a cell identifier of a cell of the second network side device.
  • the first information of the second network side device is a codeword used by the second network side device; the terminal determines, according to the first information of the second network side device, the demodulation reference signal group used by the second network side device.
  • the method includes: determining, by the terminal, a demodulation reference signal group corresponding to a codeword used by the second network side device.
  • the second network side device determines a codeword used by the second network side device Corresponding demodulation reference signal group, comprising: determining, by the terminal, a demodulation reference signal group corresponding to a codeword used by the second network side device according to a correspondence between a codeword and an antenna port set, where the antenna port set is used An antenna port is an antenna port of the demodulation reference signal included in the demodulation reference signal group; and/or a pilot pattern or a time-frequency resource of the terminal demodulating the reference signal according to the codeword and the demodulation reference signal group; Corresponding relationship, determining a demodulation reference signal group corresponding to a codeword used by the second network side device; and/or demodulating reference signal sequence of the terminal demodulating the reference signal according to the codeword and the demodulation reference signal group by the terminal Corresponding relationship, determining a demodulation reference signal group corresponding to
  • the first information of the second network side device is the transport layer information used by the second network side device; the terminal determines, according to the first information of the second network side device, the demodulation reference signal used by the second network side device And the group includes: determining, by the terminal, a demodulation reference signal group corresponding to the transport layer information used by the second network side device.
  • the second network side device determines a transport layer used by the second network side device Demodulation reference signal group corresponding to the information, comprising: determining, by the terminal, a demodulation reference signal group corresponding to the transmission layer information used by the second network side device according to the correspondence between the transmission layer information and the antenna port set, the antenna An antenna port in the port set is an antenna port of a demodulation reference signal included in the demodulation reference signal group; and/or a pilot pattern of the demodulation reference signal in the demodulation reference signal group according to the transmission layer information and the terminal according to the transmission layer information Or determining a demodulation reference signal group corresponding to the transport layer information used by the second network side device; and/or the terminal demodulating the reference signal according to the transport layer information and the demodulation reference signal group And determining a demodulation reference signal group corresponding to the transmission layer information used by the second network side device.
  • the method further includes: the terminal receiving the indication information sent by the first network side device And the indication information is used to indicate a demodulation reference signal group used by the first network side device and/or a demodulation reference signal group used to indicate the second network side device.
  • the fourth aspect provides a network side device, including:
  • a processor configured to determine first information, where the first information is different from first information used by the second network side device; and determine a demodulation reference signal group according to the first information; the demodulation reference signal group And including one or more demodulation reference signals; and a transmitter, configured to send, to the terminal, one or more demodulation reference signals in the demodulation reference signal group.
  • the first information is a cell identifier of a cell of the network side device, and the processor is specifically configured to: determine a cell of the cell Identifying the corresponding demodulation reference signal group.
  • the first information is a codeword used by a network side device, and the processor is specifically configured to: determine demodulation corresponding to the codeword Reference signal group.
  • the processor is specifically configured to: according to a correspondence between a codeword and an antenna port set, Determining a demodulation reference signal group corresponding to the codeword, an antenna port in the antenna port set being an antenna port of a demodulation reference signal included in the demodulation reference signal group; and/or demodulating according to a codeword and a codeword Determining, by the pilot signal of the demodulation reference signal in the reference signal group, a demodulation reference signal group corresponding to the codeword; and/or demodulating the reference signal according to the codeword and the demodulation reference signal group Determining a correspondence relationship between the demodulation reference signal sequences, and determining a demodulation reference signal group corresponding to the codeword.
  • the first information is transport layer information that is used by the network side device, and the processor is specifically configured to: determine that the transport layer information corresponds to Demodulate the reference signal group.
  • the processor is specifically configured to: according to the correspondence between the transmission layer information and the antenna port set Determining a demodulation reference signal group corresponding to the transmission layer information, an antenna port in the antenna port set being an antenna port of a demodulation reference signal included in the demodulation reference signal group; and/or according to transmission layer information Determining a demodulation reference signal group corresponding to the transmission layer information with a correspondence relationship between a pilot pattern or a time-frequency resource of the demodulation reference signal in the demodulation reference signal group; and/or according to the transmission layer information and the demodulation reference signal group Determining a correspondence relationship between the demodulation reference signal sequences of the demodulation reference signals, and determining a demodulation reference signal group corresponding to the transmission layer information.
  • the transmitter is further configured to: send the first information to the second network side device, so that the second network side device determines a demodulation reference signal group used by the second network side device.
  • the transmitter is further configured to: send the indication information to the second network side device, where the indication information is used to indicate a demodulation reference signal group used by the first network side device, and/or to indicate the second network The demodulation reference signal group used by the side device.
  • the transmitter is further configured to: send the first information of the first network side device to the terminal, so that the terminal determines a demodulation reference signal group used by the first network side device.
  • a fifth aspect provides a network side device, including:
  • a receiver configured to receive first information of the first network side device sent by the first network side device, where the first information of the first network side device is different from the first information of the network side device
  • the processor is configured to: Determining first information of the network side device according to the first information of the first network side device; and determining a demodulation reference signal group according to the first information of the network side device; and sending, by the transmitter, the solution to the terminal
  • One or more demodulation reference signals in the reference signal group are tuned.
  • the receiver is further configured to: receive the indication information sent by the first network side device, where the indication information is used to indicate the A demodulation reference signal group used by a network side device and/or a demodulation reference signal group used to indicate the network side device.
  • the first information of the network side device is a cell identifier of a cell of the network side device
  • the processor is specifically configured to: determine Demodulation reference signal group corresponding to the cell identifier of the cell of the network side device.
  • the first information of the network side device is a codeword used by the network side device, and the processor is specifically configured to: determine the codeword Corresponding demodulation reference signal group.
  • the processor is specifically configured to: according to a correspondence between a codeword and an antenna port set, Determining a demodulation reference signal group corresponding to the codeword, an antenna port in the antenna port set being an antenna port of a demodulation reference signal included in the demodulation reference signal group; and/or demodulating according to a codeword and a codeword Determining, by the pilot signal of the demodulation reference signal in the reference signal group, a demodulation reference signal group corresponding to the codeword; and/or demodulating the reference signal according to the codeword and the demodulation reference signal group Determining a correspondence relationship between the demodulation reference signal sequences, and determining a demodulation reference signal group corresponding to the codeword.
  • the first information of the network side device is the transport layer information used by the network side device, and the processor is specifically configured to: determine the transmission The demodulation reference signal group corresponding to the layer information.
  • the processor is specifically configured to: according to the correspondence between the transmission layer information and the antenna port set Determining a demodulation reference signal group corresponding to the transmission layer information, an antenna port in the antenna port set being an antenna port of a demodulation reference signal included in the demodulation reference signal group; and/or according to transmission layer information Determining a demodulation reference signal group corresponding to the transmission layer information with a correspondence relationship between a pilot pattern or a time-frequency resource of the demodulation reference signal in the demodulation reference signal group; and/or according to the transmission layer information and the demodulation reference signal group Determining a correspondence relationship between the demodulation reference signal sequences of the demodulation reference signals, and determining a demodulation reference signal group corresponding to the transmission layer information.
  • the transmitter is further configured to: send the first information of the second network side device to the terminal, so that the terminal determines a demodulation reference signal group used by the second network side device.
  • a terminal device including:
  • a receiver configured to receive first information of the first network side device that is sent by the first network side device, and first information of the second network side device that is sent by the second network side device; The information is different from the first information of the second network side device; the processor is configured to determine, according to the first information of the first network side device, a demodulation reference signal group used by the first network side device, and according to the The first information of the second network side device determines a demodulation reference signal group used by the second network side device; the demodulation reference signal group includes one or more demodulation reference signals; and according to the first network side Demodulating the first partial data received from the first network side device by one or more demodulation reference signals in the demodulation reference signal group used by the device, and demodulating reference signals used according to the second network side device One or more demodulation reference signals in the group demodulate the second portion of data received from the second network side device.
  • the first information of the first network side device is a cell identifier of a cell of the first network side device; And determining: the demodulation reference signal group corresponding to the cell identifier of the cell of the first network side device.
  • the first information of the first network side device is a codeword used by the first network side device
  • the processor is specifically configured to: determine a demodulation reference signal group corresponding to a codeword used by the first network side device.
  • the processor is specifically configured to: according to a correspondence between a codeword and an antenna port set, Determining, by the first network side device, a demodulation reference signal group corresponding to a codeword used by the first network side device, where an antenna port in the antenna port set is an antenna port of a demodulation reference signal included in the demodulation reference signal group; and Or determining, according to the correspondence between the codeword and the pilot pattern or the time-frequency resource of the demodulation reference signal in the demodulation reference signal group, the demodulation reference signal group corresponding to the codeword used by the first network side device; and/or And determining, according to a correspondence between the codeword and the demodulation reference signal sequence of the demodulation reference signal in the demodulation reference signal group, a demodulation reference signal group corresponding to the codeword used by the first network side device.
  • the first information of the first network side device is the transport layer information used by the first network side device
  • the processor is specifically configured to: Determining a demodulation reference signal group corresponding to the transport layer information used by the first network side device.
  • the processor is specifically configured to: according to the correspondence between the transmission layer information and the antenna port set Determining, by the first network side device, a demodulation reference signal group corresponding to the transmission layer information, where the antenna port in the antenna port set is an antenna port of the demodulation reference signal included in the demodulation reference signal group; And determining a demodulation reference signal group corresponding to the transmission layer information used by the first network side device according to the correspondence between the transmission layer information and the pilot pattern or the time-frequency resource of the demodulation reference signal in the demodulation reference signal group. And/or determining a demodulation reference signal group corresponding to the transmission layer information used by the first network side device according to the correspondence between the transmission layer information and the demodulation reference signal sequence of the demodulation reference signal in the demodulation reference signal group.
  • the first information of the second network side device is a cell identifier of the cell of the second network side device
  • the processor is specifically configured to: determine a demodulation reference signal corresponding to the cell identifier of the cell of the second network side device group.
  • the first information of the second network side device is a codeword used by the second network side device, and the processor is specifically configured to: determine a demodulation reference signal group corresponding to the codeword used by the second network side device.
  • the processor is specifically configured to: according to the correspondence between the codeword and the antenna port set, Determining, by the second network side device, a demodulation reference signal group corresponding to a codeword used by the second network side device, where an antenna port in the antenna port set is an antenna port of a demodulation reference signal included in the demodulation reference signal group; and Or determining, according to the correspondence between the codeword and the pilot pattern or the time-frequency resource of the demodulation reference signal in the demodulation reference signal group, the demodulation reference signal group corresponding to the codeword used by the second network side device; and/or And determining, according to the correspondence between the codeword and the demodulation reference signal sequence of the demodulation reference signal in the demodulation reference signal group, the demodulation reference signal group corresponding to the codeword used by the second network side device.
  • the first information of the second network side device is the transport layer information used by the second network side device, and the processor is specifically configured to: determine a demodulation reference signal group corresponding to the transport layer information used by the second network side device.
  • the processor is specifically configured to: according to the correspondence between the transmission layer information and the antenna port set Determining, by the second network side device, a demodulation reference signal group corresponding to the transmission layer information, where the antenna port in the antenna port set is an antenna port of the demodulation reference signal included in the demodulation reference signal group; And determining a demodulation reference signal group corresponding to the transmission layer information used by the second network side device according to the correspondence between the transmission layer information and the pilot pattern or the time-frequency resource of the demodulation reference signal in the demodulation reference signal group. And/or determining a demodulation reference signal group corresponding to the transmission layer information used by the second network side device according to the correspondence between the transmission layer information and the demodulation reference signal sequence of the demodulation reference signal in the demodulation reference signal group.
  • the receiver is further configured to: receive, sent by the first network side device
  • the indication information is used to indicate a demodulation reference signal group used by the first network side device and/or a demodulation reference signal group used to indicate the second network side device.
  • an embodiment of the present invention provides a data transmission apparatus, where the data transmission apparatus includes a functional module for implementing the method described in the first aspect.
  • an embodiment of the present invention further provides a data transmission apparatus, where the data transmission apparatus includes a functional module for implementing the method according to the second aspect.
  • the embodiment of the present invention further provides a data transmission apparatus, where the data transmission apparatus includes a functional module for implementing the method of the third aspect.
  • the above apparatus includes one or more processors and communication units.
  • the one or more processors are configured to support the apparatus to perform a corresponding function of a network side device (such as a first network side device or a second network side device) in the above method.
  • a demodulation reference signal group is determined.
  • the communication unit is configured to support the device to communicate with other devices to implement receiving and/or transmitting functions. For example, one or more demodulation reference signals in the set of demodulation reference signals are transmitted.
  • the apparatus may further include one or more memories for coupling with the processor, which store program instructions and/or data necessary for the network side device.
  • the one or more memories may be integrated with the processor or may be separate from the processor. This application is not limited.
  • the device may be a base station, a gNB or a TRP, etc.
  • the communication unit may be a transceiver, or a transceiver circuit.
  • the transceiver may also be an input/output circuit or an interface.
  • the device can also be a communication chip.
  • the communication unit may be an input/output circuit or interface of a communication chip.
  • the above apparatus includes a transceiver, a processor, and a memory.
  • the processor is for controlling a transceiver transceiver signal for storing a computer program for executing a computer program in a memory, such that the apparatus performs the first aspect, the second aspect, or the first aspect to the second aspect A method of completion of a network side device in any of the possible implementations.
  • the above apparatus includes one or more processors and communication units.
  • the one or more processors are configured to support the apparatus to perform the corresponding functions of a terminal device (e.g., a terminal) in the above method. For example, a demodulation reference signal group is determined.
  • the communication unit is configured to support the device to communicate with other devices to implement receiving and/or transmitting functions. For example, receiving the first information.
  • the apparatus may further comprise one or more memories for coupling with the processor, which store program instructions and/or data necessary for the device.
  • the one or more memories may be integrated with the processor or may be separate from the processor. This application is not limited.
  • the device may be a smart terminal or a wearable device or the like, and the communication unit may be a transceiver or a transceiver circuit.
  • the transceiver may also be an input/output circuit or an interface.
  • the device can also be a communication chip.
  • the communication unit may be an input/output circuit or interface of a communication chip.
  • the above apparatus includes a transceiver, a processor, and a memory.
  • the processor is configured to control a transceiver transceiver signal for storing a computer program for executing a computer program in the memory, such that the device performs the terminal in any of the possible implementations of the third aspect or the third aspect The method by which the device is completed.
  • an embodiment of the present invention further provides a computer storage medium, where the computer storage medium stores program code, where the program code includes a method for implementing the first aspect, the second aspect, or the third aspect. Any possible implementation of the instructions.
  • a system comprising the above terminal device and a network side device.
  • a computer program product comprising: computer program code, when the computer program code is run on a computer, causing the computer to perform the first aspect, the second aspect, and the third Aspect, or a method of any of the first to third aspects of possible implementations.
  • FIG. 1a-1b are structural diagrams of a communication system according to an embodiment of the present invention.
  • FIG. 2 is a structural diagram of a data transmission apparatus according to an embodiment of the present invention.
  • FIG. 3 is a flowchart of a data transmission method on a device side of a first network side according to an embodiment of the present disclosure
  • FIG. 4 is a schematic diagram of a pilot pattern according to an embodiment of the present invention.
  • the embodiments of the present invention provide a data transmission method, a network side device, and a terminal device, which are used to implement orthogonal transmission demodulation reference signals by different base stations under cooperative transmission.
  • FIG. 1a and FIG. 1b are structural diagrams of a possible communication network system according to an embodiment of the present invention.
  • the communication network system includes a first network side device, a second network side device, and a terminal device.
  • the first network side device is a service network side device of the terminal device, and the service side network device means that the terminal device is provided with an RRC connection and a non-access stratum (English: non-access stratum, referred to as NAS) mobility through a wireless air interface protocol.
  • Network-side devices for services such as management and security input.
  • the first network side device and the terminal device can communicate through an air interface protocol.
  • the number of the second network side devices may be one or more, and the first network side device is a network side device that meets different QCLs. Generally, the second network side device and the first network side device are located at different geographical locations. . Generally, the second network side device is a neighbor network side device of the first network side device. The second network side device can also perform data transmission through the air interface protocol. The second network side device is configured to assist the first network side device to perform data transmission to the terminal device, for example, multi-stream transmission or diversity transmission, so the second network side device may also be referred to as a cooperative network side device. Communication between the first network side device and the second network side device may also be performed, for example, by transmitting control messages and/or indicating information.
  • the first network side device may also be a cooperative network side device, and the second network side device is a serving network side device.
  • the first network side device and the second network side device may be different transmission points of the same device, for example, two remote radio units (English: Radio Unit, abbreviated as RU) or radio frequency heads. :Radio Head (RH), or two completely independent network side devices, such as two base stations. It can also be a different antenna panel under the same base station, and is not limited herein.
  • the first network side device and the second network side device simultaneously access the centralized scheduler.
  • the first network side device and the second network side device may not directly communicate with each other, and the foregoing control message and/or the indication information are all sent by the centralized scheduler to the first network side device and the second network side device.
  • the centralized scheduler may be a separate physical device, or may be a functional module integrated on the first network side device, or a functional module integrated on other devices, which is not limited herein.
  • the communication system may further include a neighboring network side device and a terminal device that transmit services on the same time-frequency resource except the two network side devices, and each network side device may include other numbers of terminals in the coverage of the network side device. device.
  • the communication system in which the network side device and the terminal device are located in FIG. 1a and FIG. 1b may further include other network entities, such as a network controller and/or a mobility management entity, which are not limited in the embodiment of the present invention.
  • the network side equipment mentioned in this paper may be a base station in Global Mobile Communication (English: Global System of Mobile communication; GSM for short) or Code Division Multiple Access (CDMA: CDMA).
  • Base Transceiver Station; referred to as BTS it can also be a base station (English: NodeB; NB for short) in Wideband Code Division Multiple Access (WCDMA), or it can be long-term evolution.
  • BTS Global Mobile Communication
  • NodeB NodeB
  • WCDMA Wideband Code Division Multiple Access
  • LTE Long Term Evolution
  • eNB Evolutional Node B
  • eNodeB Evolved Base Station
  • TRP Transmission and Receiver Point
  • TP Transmission and Receiver Point
  • the terminal device mentioned herein may be a wireless terminal device or a wired terminal device, and the wireless terminal device may be a device that provides voice and/or other service data connectivity to the user, a handheld device with wireless connection function, or Connect to other processing devices of the wireless modem.
  • the wireless terminal device can communicate with one or more core networks via a radio access network (English: Radio Access Network; RAN), and the wireless terminal device can be a mobile terminal, such as a mobile phone (or "cellular" phone).
  • a computer having a mobile terminal for example, can be a portable, pocket, handheld, computer built-in or in-vehicle mobile device that exchanges language and/or data with the wireless access network.
  • the wireless terminal device may also be referred to as a system, a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, a remote terminal, or a remote terminal. Access Terminal, User Terminal, User Agent, User Device or User Equipment.
  • the terminal device may also be a network side device, and the network side device may also be a terminal device.
  • the solution is also applicable to a system in which the network side communicates with the network side, and the terminal device communicates with the terminal device.
  • FIG. 2 is a schematic structural diagram of a data transmission apparatus according to an embodiment of the present invention.
  • the device is, for example, a possible structural diagram of the first network side device, the second network side device, and the terminal device.
  • the apparatus includes a processor 10, a transmitter 20, a receiver 30, a memory 40, and an antenna 50.
  • the memory 40, the transmitter 20 and the receiver 30 and the processor 10 can be connected via a bus.
  • the memory 40, the transmitter 20, and the receiver 30 and the processor 10 may not be a bus structure, but may be other structures, such as a star structure, which is not specifically limited herein.
  • the processor 10 may be a general-purpose central processing unit or an application specific integrated circuit (ASIC), and may be one or more integrated circuits for controlling program execution, and may be A hardware circuit developed using a Field Programmable Gate Array (FPGA) can be a baseband processor.
  • ASIC application specific integrated circuit
  • FPGA Field Programmable Gate Array
  • processor 10 may include at least one processing core.
  • the memory 40 may include one or more of a read only memory (English: Read Only Memory, ROM for short), a random access memory (English: Random Access Memory, RAM), and a disk storage.
  • Memory 40 is used to store data and/or instructions needed by processor 10 to operate.
  • the number of memories 40 may be one or more. Portions of memory 40 may be integrated with the processor or may be set independently of the processor.
  • each antenna port can send a demodulation reference signal (English: Demodulation Reference Signal, DM-RS for short), and is used by the terminal device to perform channel estimation and PDSCH data demodulation of the PDSCH.
  • DM-RS Demodulation Reference Signal
  • LTE supports 8 antenna ports. These 8 antenna ports can be divided into two groups. Ports ⁇ 7, 8, 11, and 13 ⁇ are one group, and ports ⁇ 9, 10, 12, and 14 ⁇ are another. A group. The two sets of antenna ports are distinguished by frequency division, and four antenna ports in each group are distinguished by code points.
  • the transmitter 20 and the receiver 30 may be physically independent of each other or integrated.
  • Transmitter 20 can transmit data via antenna 50.
  • Receiver 30 can receive data via antenna 50.
  • FIG. 3 is a flowchart of a data transmission method on the first network side device side in the embodiment of the present invention. As shown in FIG. 3, the method includes:
  • Step 301 The first network side device determines the first information.
  • Step 302 The first network side device determines, according to the first information, a demodulation reference signal group.
  • Step 303 The first network side device sends one or more demodulation reference signals in the demodulation reference signal group to the terminal.
  • the demodulation reference signal group is predefined, and the demodulation reference signal is divided into a plurality of packets.
  • the resources occupied by the antenna ports of the demodulation reference signal may be grouped according to at least one of time division, frequency division, and code division.
  • LTE supports eight antenna ports.
  • the eight antenna ports can be divided into two groups.
  • Ports ⁇ 7, 8, 11, and 13 ⁇ are a group, and ports ⁇ 9, 10, 12, and 14 are used.
  • ⁇ is another group.
  • port 7 and port 8 use the same resource unit (English: Resource Element, RE), and port 9 and port 10 use the same RE.
  • the demodulation reference signals can be divided into two groups according to the antenna port, and the demodulation reference signals transmitted on the ports ⁇ 7, 8, 11, 13 ⁇ are a group at ports ⁇ 9, 10, 12, 14 ⁇ .
  • the demodulation reference signals transmitted on one are a group.
  • pilot patterns For 5G systems, if there can be different pilot patterns on the same antenna port, they can also be grouped according to the pilot pattern. For example, the demodulation reference signals corresponding to the pilot patterns 1 and 2 are a group, and the demodulation reference signals corresponding to the pilot patterns 3 and 4 are a group.
  • the pilot pattern is a mapping of pilot sequences on time domain and/or frequency domain resources.
  • the grouping may be performed according to the demodulation reference signal sequence, for example, the demodulation reference signals corresponding to the scrambling IDs 1 and 2 are a group, and the demodulation reference signals corresponding to the scrambling IDs 3 and 4 are a group.
  • each demodulation reference signal group includes at least one demodulation reference signal corresponding to the information, and the information may be at least one of an antenna port, a pilot pattern, and scrambling information.
  • the information may be at least one of an antenna port, a pilot pattern, and scrambling information.
  • one or more demodulation reference signals are included in each demodulation reference signal group.
  • the second network side device and/or the terminal may be interacted by means of the indication information.
  • the first network side device sends the indication information to the second network side device and/or the terminal, and may indicate the demodulation reference signal group used by the first network side device and/or the demodulation reference signal group used by the second network side device,
  • the second network side device also knows the demodulation reference signal group that can be used by itself, and the demodulation reference signal group used by the second network side device and the first network side
  • the demodulation reference signal group used by the device is different to ensure orthogonality.
  • demodulation reference signal group may be indicated not by way of indicating information, but by a predefined manner.
  • the first information of the first network side device may be a cell identifier of a cell of the first network side device or a codeword used by the first network side device, where the first information of the first network side device is
  • the first information of the second network side device may be the cell identifier of the cell of the second network side device or the codeword used by the second network side device. For example, if the first network side device uses codeword 1, the second network side device uses codeword 2.
  • the correspondence between the cell identifier and the demodulation reference signal group needs to be determined first.
  • the demodulation reference signal group that is specifically used is determined according to the size of the cell identifier of the cell.
  • the cell with a small cell identifier adopts a demodulation reference signal group 1
  • the cell with a large cell identifier uses a demodulation reference signal group 2.
  • the cell with a large cell identifier adopts a demodulation reference signal group 1
  • the cell with a small cell identifier uses a demodulation reference signal group 2, which is specifically allocated in a specific application.
  • Other rules may also be used, and are not limited herein.
  • the cell with small cell identifier can adopt the demodulation reference signal group 1, 2, and the cell with large cell identification adopts demodulation reference.
  • the cell with small cell identifier adopts demodulation reference signal groups 1, 3, and the cell with large cell identifier adopts demodulation reference signal groups 2 and 4.
  • the specific demodulation reference signal group number, and the correspondence relationship of other rules may also be used, which is not limited herein.
  • different demodulation reference signal groups may be used for each cell.
  • the number of cells is four, and the number of demodulation reference signal groups is four, which can be in one-to-one correspondence, as shown in Table 1.
  • the values in the table are by way of example only, and other values and orderings are also applicable, and are not limited herein.
  • the other coordinated cells may adopt the same or different demodulation reference signal groups, for example, the correspondence between the cell identifier and the demodulation reference signal group in the case where the serving cell is ID index1 As shown in table 2.
  • the values in the table are by way of example only, and other values and orderings are also applicable, and are not limited herein.
  • the corresponding relationship between the cell identifier and the demodulation reference signal group may be predefined, or may be the interaction between the network side devices of the cooperative network, so that all the network side devices of the cooperation know the corresponding relationship.
  • the first network side device may determine, according to the cell identity, a demodulation reference signal group corresponding to the cell identifier.
  • the cell identifier of the cell of the first network side device is 34, corresponding to the ID index 2 in Table 1.
  • the number of the corresponding demodulation reference signal group is 3, 4.
  • the first network side device may determine the first network side device according to the correspondence between the codeword and the demodulation reference signal group.
  • the codeword corresponds to the demodulation reference signal group.
  • the correspondence between the above codewords and the demodulation reference signal group may be predefined or interacted between the network side devices through cooperation.
  • the correspondence between the codeword and the demodulation reference signal group can be expressed by one or any combination of the following.
  • the demodulation reference signal antenna port can be 7, 8, 9, 10, 11, 12, 13, 14, it can be predefined that the set of antenna ports that can be used for codeword 1 is ⁇ 7, 8, 11, 13 ⁇ , the set of antenna ports that can be used for codeword 2 is ⁇ 9, 10, 12, 14 ⁇ or the set of antenna ports that can be used for codeword 1 is ⁇ 9, 10, 12, 14 ⁇ , and the antenna port that can be used for codeword 2
  • the set of antenna ports that can be used for ⁇ 7, 8, 11, 13 ⁇ or codeword 1 is ⁇ 7, 8 ⁇
  • the set of antenna ports that can be used for codeword 2 is ⁇ 9, 10 ⁇ , and codeword 3 can be used.
  • the set of antenna ports is ⁇ 11, 13 ⁇ , and the set of antenna ports that can be used by codeword 4 is ⁇ 12, 14 ⁇ .
  • the demodulation reference signal antenna port can be 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, the antenna of the code word 1 can be used.
  • the set of ports is ⁇ 7, 8, 11, 13 ⁇
  • the set of antenna ports that can be used by codeword 2 is ⁇ 9, 10, 12, 14 ⁇
  • the set of antenna ports that can be used for codeword 3 is ⁇ 15, 16, 17, 18 ⁇
  • the set of antenna ports that can be used for codeword 4 is ⁇ 19, 20, 21, 22 ⁇ or the set of antenna ports that can be used for codeword 1 is ⁇ 7, 8, 11, 13 ⁇
  • the set of ports is ⁇ 9, 10, 12, 14 ⁇
  • the set of antenna ports that can be used by codeword 3 is ⁇ 15, 16, 19, 20 ⁇
  • the set of antenna ports that can be used by codeword 4 is ⁇ 17, 18, 21, twenty two ⁇ .
  • the antenna port of the specific demodulation reference signal may have other values, which is not limited herein.
  • the corresponding relationship between the specific codeword and the demodulation reference signal antenna port set may also be other manners, which is not limited herein.
  • Manner 2 The correspondence between the codeword and the pilot pattern or the time-frequency resource of the demodulation reference signal in the demodulation reference signal group.
  • the codeword can be associated with the pilot pattern or time-frequency resource of the demodulation reference signal.
  • the pilot pattern of the CSI-RS as an example, if there are 8 pilot patterns for the 8-antenna normal subframe, the pilot pattern that can be used for the codeword 1 is the first to fourth types, and the codeword 2 can be used.
  • the pilot patterns are 5th to 8th.
  • the pilot patterns available for codeword 1 are the first, third, fifth, and seventh types
  • the pilot patterns that can be used for the codeword 2 are the second, fourth, sixth, and eighth types.
  • (k', l') represents a resource unit combination for indicating two consecutive resource units (RE) in the time domain, and k' is a resource unit.
  • the mapping of CSI-RS under different antenna ports is as shown in FIG. 4.
  • the number of pilot patterns of the specific demodulation reference signal may have other values.
  • the pilot pattern of the specific demodulation reference signal may have other mappings.
  • the corresponding relationship between the codeword and the pilot pattern of the demodulation reference signal may be other manners, which is not limited herein.
  • the third mode the correspondence between the codeword and the demodulation reference signal sequence of the demodulation reference signal in the demodulation reference signal group.
  • the demodulation reference signal sequence that can be used in codeword 1 is 1, 2, 3, and 4, and the demodulation reference signal sequence that can be used in codeword 2 For the 5th, 6th, 7th and 8th.
  • the demodulation reference signal sequence that can be used in the codeword 1 is 1, 3, 5, and 7, and the demodulation reference signal sequence that can be used in the codeword 2 is the 2nd, 4th, 6th, and 8th.
  • the number of sequences of specific demodulation reference signals may have other values.
  • the correspondence between the codeword and the demodulation reference signal sequence may also be in other manners, which is not limited herein.
  • the first network side device After determining the correspondence between the codeword and the demodulation reference signal group, the first network side device determines, according to the correspondence between the codeword and the demodulation reference signal group, a demodulation reference corresponding to the codeword used by the first network side device. Signal group.
  • the first network side device determines, according to the correspondence between the codeword and the antenna port set, the first network side device to use.
  • the antenna port set is an antenna port that demodulates a demodulation reference signal included in the reference signal group.
  • the first network side device uses the codeword 1.
  • the antenna port set of the demodulation reference signal group corresponding to the codeword 1 is ⁇ 7, 8, 11, 13 ⁇ .
  • the second network side device uses codeword 2
  • the antenna port set of the demodulation reference signal group corresponding to the codeword 2 is ⁇ 9, 10, 12, 14 ⁇ .
  • the antenna port set of the demodulation reference signal group corresponding to the codewords 1, 2 is ⁇ 7, 8, 11, 13 ⁇ , and the codewords 3, 4 correspond to the demodulation reference signal group.
  • the antenna port set is ⁇ 9, 10, 12, 14 ⁇ , and the first network side device transmits at least one of the code words 1, 2 by default, and the second network side device transmits at least one of the code words 3, 4 by default.
  • the first network side device When the correspondence between the codeword and the demodulation reference signal group is the correspondence between the pilot pattern and the time-frequency resource of the demodulation reference signal in the codeword and the demodulation reference signal group, the first network side device according to the codeword and the solution And adjusting a correspondence between a pilot pattern or a time-frequency resource of the demodulation reference signal in the reference signal group, and determining a corresponding demodulation reference signal group of the codeword used by the first network side device.
  • the pilot pattern of the demodulation reference signal in the demodulation reference signal group corresponding to the codeword 2 is the first to fourth types
  • the second network side device Using codeword 2 the pilot pattern of the demodulation reference signal in the demodulation reference signal group corresponding to the codeword 2 is 5th to 8th.
  • the first network side device may transmit codeword 1 by default
  • the second network side device may transmit codeword 2 by default.
  • the pilot pattern of the demodulation reference signal in the demodulation reference signal group corresponding to the codewords 1, 2 is the first to fourth types, and the demodulation reference signals corresponding to the codewords 3 and 4
  • the pilot patterns of the demodulation reference signals in the group are the fifth to eighth types, and the first network side device transmits at least one of the code words 1, 2 by default, and the second network side device transmits at least one of the code words 3, 4 by default.
  • the first network side device When the correspondence between the codeword and the demodulation reference signal group is a correspondence between the codeword and the demodulation reference signal sequence of the demodulation reference signal in the demodulation reference signal group, the first network side device according to the codeword and the demodulation reference Corresponding relationships of demodulation reference signal sequences of demodulation reference signals in the signal group, determining corresponding demodulation reference signal groups of codewords used by the first network side device.
  • the demodulation reference signal sequence of the demodulation reference signal in the demodulation reference signal group corresponding to the codeword 2 is 1, 2, 3, and 4, and the second network side
  • the device uses codeword 2
  • the demodulation reference signal sequence of the demodulation reference signal in the demodulation reference signal group corresponding to the codeword 2 is 5th, 6, 7, and 8.
  • the first network side device may transmit codeword 1 by default, and the second network side device may transmit codeword 2 by default.
  • the demodulation reference signal sequence of the demodulation reference signal in the demodulation reference signal group corresponding to the code words 1 and 2 is 1, 2, 3, and 4, and the code words 3 and 4
  • the demodulation reference signal sequence of the demodulation reference signal in the corresponding demodulation reference signal group is 5th, 6th, 7th, and 8th
  • the first network side device transmits at least one of the codewords 1, 2 by default
  • the second network side The device transmits at least one of the code words 3, 4 by default.
  • the first network side device may determine the first network side according to the correspondence between the transport layer information and the demodulation reference signal group.
  • the demodulation reference signal group corresponding to the transmission layer information used by the device.
  • the correspondence between the foregoing transport layer information and the demodulation reference signal group may be predefined or interacted between the network side devices through cooperation.
  • the correspondence between the transport layer information and the demodulation reference signal group can be expressed by one or any combination of the following.
  • the transport layer information may be specific layer number information, such as first layer data, second layer data, third layer data, etc., or may be specific layer number information, such as one layer, two layers, three layers, and two layers. , the last two layers, the previous layer, the latter layer, and so on.
  • the demodulation reference signal antenna port can be 7, 8, 9, 10, 11, 12, 13, or 14, it can be predefined as the correspondence between the transmission layer information and the antenna port set, and the specific layer can be the first layer.
  • the set of antenna ports used by the data is ⁇ 7, 8 ⁇
  • the set of antenna ports that can be used for the second layer of data is ⁇ 9, 10 ⁇
  • the set of antenna ports that can be used for the first layer of data is ⁇ 9, 10, 12, 14 ⁇
  • the set of antenna ports that can be used for the second layer of data is ⁇ 7, 8, 11, 13 ⁇
  • the set of antenna ports that can be used for the first layer of data is ⁇ 7, 8 ⁇ , and the antenna port that can be used for the second layer of data.
  • the set is ⁇ 9, 10 ⁇
  • the set of antenna ports that can be used for the third layer of data is ⁇ 11, 13 ⁇
  • the set of antenna ports that can be used for the fourth layer of data is ⁇ 12, 14 ⁇ .
  • the demodulation reference signal antenna port can be 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, the first layer of data can be used.
  • the antenna port set is ⁇ 7, 8, 11, 13 ⁇
  • the antenna port set that can be used for the second layer data is ⁇ 9, 10, 12, 14 ⁇
  • the antenna port set that can be used for the third layer data is ⁇ 15, 16 , 17, 18 ⁇
  • the set of antenna ports that can be used for Layer 2 data is ⁇ 9, 10, 12, 14 ⁇
  • the set of antenna ports that can be used for Layer 3 data is ⁇ 15, 16, 19, 20 ⁇
  • the antenna port that can be used for Layer 4 data is ⁇ 17, 18, 21, 22 ⁇ .
  • the demodulation reference signal antenna port can be 7, 8, 9, 10, 11, 12, 13, 14 , it can be predefined as the correspondence between the transmission layer information and the antenna port set, and specifically the transmission layer information.
  • the set of antenna ports that can be used for one layer is ⁇ 7, 8 ⁇
  • the set of antenna ports that can be used when the transport layer information is two layers is ⁇ 9, 10 ⁇ ; or the antenna port that can be used when the transport layer information is one layer.
  • the set is ⁇ 7, 8, 11, 13 ⁇ , the set of antenna ports that can be used when the transport layer information is two layers is ⁇ 9, 10, 12, 14 ⁇ ; or the set of antenna ports that can be used when the transport layer information is one layer
  • the set of antenna ports that can be used when the transport layer information is two layers is ⁇ 9, 10 ⁇
  • the set of antenna ports that can be used when the transport layer information is three layers is ⁇ 7, 8, 11, 13 ⁇
  • the set of antenna ports that can be used when the transport layer information is four layers is ⁇ 9, 10, 12, 14 ⁇ ; or the set of antenna ports that can be used when the transport layer information is the first two layers is ⁇ 7, 8, 11, 13 ⁇
  • the set of antenna ports that can be used when the transport layer information is the last two layers is ⁇ 9, 10, 12, 14 ⁇ .
  • the demodulation reference signal antenna port can be 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, when the transmission layer information is one layer
  • the set of antenna ports that can be used is ⁇ 7, 8, 11, 13 ⁇ , and the set of antenna ports that can be used when the transport layer information is two layers is ⁇ 9, 10, 12, 14 ⁇ ; or when the transport layer information is one layer
  • the set of antenna ports used is ⁇ 7, 8, 11, 13 ⁇ , and the set of antenna ports that can be used when the transport layer information is two layers is ⁇ 9, 10, 12, 14 ⁇ , and the transport layer information can be used when the layer information is three layers.
  • the antenna port set is ⁇ 15, 16, 19, 20 ⁇ , and the antenna port set that can be used when the transport layer information is four layers is ⁇ 17, 18, 21, 22 ⁇ ; or the transport layer information can be used when the first two layers are used.
  • the antenna port set is ⁇ 7, 8, 11, 13, 15, 16, 19, 20 ⁇ , and the antenna port set that can be used when the transport layer information is the latter two layers is ⁇ 9, 10, 12, 14, 17, 19, 21, 22 ⁇ .
  • the antenna port of the specific demodulation reference signal may have other values, which is not limited herein.
  • the corresponding relationship between the specific transmission layer information and the antenna port set of the demodulation reference signal may also be used in other manners, which is not limited herein.
  • Manner 2 Corresponding relationship between the transmission layer information and the pilot pattern or time-frequency resource of the demodulation reference signal in the demodulation reference signal group.
  • the transport layer information may be specific layer number information, such as first layer data, second layer data, third layer data, etc., or may be specific layer number information, such as one layer, two layers, three layers, and two layers. , the last two layers, the previous layer, the latter layer, and so on.
  • the transmission layer information can be associated with the pilot pattern or the time-frequency resource of the demodulation reference signal.
  • the pilot pattern of the CSI-RS as an example, if there are 8 pilot patterns for the 8-antenna normal subframe, the pilot pattern that can be used for the first layer of data is the first to fourth types, and the second layer of data can be used.
  • the pilot patterns used are 5th to 8th.
  • the pilot patterns available for the first layer of data are the first, third, fifth, and seventh types
  • the pilot patterns that can be used for the second layer of data are the second, fourth, sixth, and eighth types.
  • the pilot patterns available for the first two layers are the first, third, fifth, and seventh types, and the pilot patterns available for the latter two layers are the second, fourth, sixth, and eighth types.
  • (k', l') represents a resource unit combination for indicating two consecutive resource units (RE) in the time domain, and k' is a resource.
  • the subcarrier number of the first RE and the second RE in the unit combination l' is the symbol number of the first RE in the resource unit combination
  • the mapping of CSI-RS under different antenna ports is as shown in FIG. 4.
  • the number of pilot patterns of the specific demodulation reference signal may have other values.
  • the pilot pattern of the specific demodulation reference signal may have other mappings.
  • the corresponding relationship between the transmission layer information and the pilot pattern of the demodulation reference signal may be other manners, which is not limited herein.
  • Manner 3 Corresponding relationship between the transmission layer information and the demodulation reference signal sequence of the demodulation reference signal in the demodulation reference signal group.
  • the transport layer information may be specific layer number information, such as first layer data, second layer data, third layer data, etc., or may be specific layer number information, such as one layer, two layers, three layers, and two layers. , the last two layers, the previous layer, the latter layer, and so on.
  • the demodulation reference signal sequence that can be used for the first layer of data is 1, 2, 3, and 4, and the demodulation reference can be used for the second layer of data.
  • the signal sequence is 5th, 6th, 7th, and 8th.
  • the demodulation reference signal sequence that can be used for the first layer data is the first, third, fifth, and seventh
  • the demodulation reference signal sequence that can be used for the second layer of data is the second, fourth, sixth, and eighth.
  • the demodulation reference signal sequence that can be used when the transmission layer information is the first two layers is the first, third, fifth, and seventh
  • the demodulation reference signal sequence that can be used when the transmission layer information is the latter two layers is the second. 4, 6, 8 .
  • the number of sequences of specific demodulation reference signals may have other values.
  • the correspondence between the transmission layer information and the demodulation reference signal sequence may also be in other manners, which is not limited herein.
  • the first network side device After determining the correspondence between the transport layer information and the demodulation reference signal group, the first network side device determines, according to the correspondence between the transport layer information and the demodulation reference signal group, a solution corresponding to the transport layer used by the first network side device. Adjust the reference signal group.
  • the first network side device determines the first network side device according to the correspondence between the transmission layer and the antenna port set.
  • the antenna port set is an antenna port that demodulates a demodulation reference signal included in the reference signal group.
  • the first network side device uses the transport layer information as the first layer data, and the antenna port set corresponding to the demodulation reference signal group corresponding to the first layer data is determined to be ⁇ 7 by the correspondence between the transport layer information and the antenna port set. 8, 11, 13 ⁇ .
  • the second network side device uses the transport layer information as the second layer data, and the antenna port set of the demodulation reference signal group corresponding to the second layer data is determined to be ⁇ 9 by the correspondence between the transport layer information and the antenna port set. , 10, 12, 14 ⁇ .
  • the first network side device may transmit the first layer data by default, and the second network side device transmits the second layer data by default.
  • the antenna port set corresponding to the demodulation reference signal group is ⁇ 7, 8, 11, 13 ⁇ when the transmission layer information is the first two layers, and the corresponding solution when the transmission layer information is the last two layers.
  • the antenna port set of the reference signal group is ⁇ 9, 10, 12, 14 ⁇ , and the first network side device transmits at least one of the first two layers of data by default, and the second network side device transmits at least one of the two layers of data by default. .
  • the specific default methods and rules are not limited here.
  • the first network side device determines a corresponding demodulation reference signal group of the transmission layer used by the first network side device.
  • the pilot pattern of the demodulation reference signal in the demodulation reference signal group corresponding to the transmission layer is the first to fourth types
  • the pilot patterns of the demodulation reference signals in the demodulation reference signal group corresponding to the transport layer are 5th to 8th.
  • the first network side device may transmit the first layer data by default
  • the second network side device may transmit the second layer data by default.
  • the transmission layer information is the first two layers
  • the pilot pattern of the demodulation reference signal in the corresponding demodulation reference signal group is the first to fourth types
  • the transmission layer information is the last two layers.
  • the pilot pattern of the demodulation reference signal in the corresponding demodulation reference signal group is 5th to 8th
  • the first network side device transmits at least one of the first two layers of data by default
  • the second network side device transmits the last two layers by default. At least one of the data.
  • the specific default methods and rules are not limited here.
  • the first network side device When the correspondence between the transport layer information and the demodulation reference signal group is a correspondence between the transport layer information and the demodulation reference signal sequence of the demodulation reference signal in the demodulation reference signal group, the first network side device according to the transport layer information and And demodulating a correspondence relationship between the demodulation reference signal sequences of the demodulation reference signals in the reference signal group, and determining a corresponding demodulation reference signal group of the transmission layer used by the first network side device.
  • the demodulation reference signal sequence of the demodulation reference signal in the demodulation reference signal group corresponding to the transport layer information is the first, second, third, and fourth
  • the demodulation reference signal sequence of the demodulation reference signal in the demodulation reference signal group corresponding to the transport layer information is 5th, 6th, 7th, and 8th.
  • the first network side device may transmit the first layer data by default, and the second network side device may transmit the second layer data by default.
  • the demodulation reference signal sequence of the demodulation reference signal group in the corresponding demodulation reference signal group is the first, second, third, and fourth, when the transmission is performed.
  • the layer information is the last two layers
  • the demodulation reference signal sequence of the demodulation reference signal group corresponding to the demodulation reference signal group is 5th, 6th, 7th, and 8th
  • the first network side device transmits at least one of the first two layers by default.
  • the second network side device transmits at least one of the two layers after the default transmission.
  • the specific default methods and rules are not limited here.
  • the first network side device After determining the demodulation reference signal group corresponding to the first information, the first network side device sends one or more demodulation reference signals in the demodulation reference signal group to the terminal, so that different network side devices adopt orthogonal Demodulation reference signal.
  • the first network side device determines the first information, that is, after the first network side device determines the cell identity of its own cell or the codeword or transport layer information used by itself, the first network The side device sends the first information of the first network side device to the second network side device, so that the second network side device determines the demodulation reference signal group used by the second network side device, so that the second network side device uses The demodulation reference signal group is different from the second network side device, and the orthogonality of the transmitted demodulation reference signals is implemented, thereby ensuring normal demodulation of the terminal and reducing signaling overhead.
  • the first network side device does not need to send the first information of the first network side device to the second network side device, where the first network side device and the second network side device are according to a predefined
  • the rules can determine the respective cell identity or codeword or transport layer information, and ensure that the respective demodulation reference signals are orthogonal to improve data demodulation performance.
  • the method for performing the data transmission includes the following steps: the second network side device receives the first information of the first network side device sent by the first network side device, where the first network side device The first information of the second network side device is different according to the first information; the second network side device determines, according to the first information of the first network side device, first information of the second network side device; And determining, by the network side device, the demodulation reference signal group according to the first information of the second network side device; the second network side device transmitting, to the terminal, one or more demodulation reference signals in the demodulation reference signal group.
  • the first network side device determines the first information of the second network side device according to the first information of the first network side device, the first information of the first network side device is different from the first information of the second network side device. For example, when the first information of the first network side device is codeword 1, the first information of the second network side device is codeword 2.
  • the data transmission method includes the following steps: the terminal receives the first information of the first network side device sent by the first network side device, and the first information of the second network side device sent by the second network side device; The first information of the first network side device is different from the first information of the second network side device; the terminal determines, according to the first information of the first network side device, demodulation used by the first network side device a reference signal group, and determining, according to the first information of the second network side device, a demodulation reference signal group used by the second network side device; the demodulation reference signal group includes one or more demodulation reference signals; Decoding, by the terminal, the first partial data received from the first network side device according to one or more demodulation reference signals in the demodulation reference signal group used by the first network side device, and according to the And demodulating the second partial data received from the second network side device by one or more demodulation reference signals in the demodulation reference signal group used by the network side device.
  • the terminal specifically determines, according to the first information of the first network side device, the demodulation reference signal group used by the first network side device, and determines the demodulation reference signal group used by the second network side device according to the first information of the second network side device.
  • the manner of determining the demodulation reference signal group is the same as that of the first network side device according to the first information of the first network side device, which has been described in detail above, and therefore will not be further described herein.
  • the first information of the first network side device that is acquired by the terminal may be sent by the first network side device, or may be sent by the second network side device, or sent by other network side devices, and is not limited herein.
  • the first information of the second network side device that is acquired by the terminal may be sent by the first network side device, or may be sent by the second network side device, or sent by other network side devices, and is not limited herein.
  • the first network side device and/or the second network side device may not send the first information to the terminal, and may directly send the information of the demodulation reference signal group, and the specific example manner is not limited herein. .
  • different network side devices need to use orthogonal demodulation reference signal groups.
  • One possible way is to demodulate the adoption of signalable packets by time domain and/or frequency domain resources.
  • the grouping is performed according to the antenna port.
  • the specific example is that the first demodulation reference signal group includes antenna ports 7, 8, 11, and 13, and the second demodulation reference signal group includes antenna ports 9, 10, 12, and 14.
  • real-time interaction information is not required between the network side devices, and only long-term information (that is, information that is relatively stable rather than changed in real time) needs to be exchanged.
  • different network side devices can determine the demodulation reference signal groups used by each of them in a predefined or interactive manner.
  • the terminal side may also determine the currently used demodulation reference signal group by means of predefined or network side device notification. Another way is to implicitly indicate the information of the demodulation reference signal group. For example, different codewords may correspond to different demodulation reference signal groups, and different network side devices may determine different codewords according to predefined or interactive manners. The demodulation reference signal group used. The terminal side may also determine the currently used demodulation reference signal group by means of predefined or network side device notification.
  • the first network side device determines the demodulation reference signal group to be used according to the first information, so that the demodulation reference signal group used by the first network side device and the demodulation reference signal used by the second network side device are used.
  • Different groups can ensure that the first network side device and the second network side device adopt orthogonal demodulation reference signals, so as to avoid the problem that the terminal demodulation capability is poor due to the fact that different base stations adopt the demodulation reference signals cannot be orthogonal.
  • the network side devices do not need to interact in real time, and the data can be sent according to the packets. If the demodulation reference signals are not grouped, each network side device needs to interact with the currently used DMRS in real time to avoid collisions.
  • the grouping of the demodulation reference signal may be negotiated or pre-defined between the network side devices. This may be long-term, or may not change much after being divided, so that performance loss caused by the interaction delay may be avoided.
  • an embodiment of the present invention further provides a data transmission device (shown in FIG. 2), which is used to implement any one of the foregoing methods.
  • the processor 10 is configured to determine first information, where the first information is different from the first information used by the second network side device; The first information determines a demodulation reference signal group; the demodulation reference signal group includes one or more demodulation reference signals; and the transmitter 20 is configured to send one or more of the demodulation reference signal groups to the terminal Demodulate the reference signal.
  • the first information is a cell identifier of a cell of the network side device
  • the processor 10 is specifically configured to: determine the demodulation reference signal group corresponding to a cell identifier of the cell.
  • the first information is a codeword used by the network side device, and the processor 10 is specifically configured to: determine a demodulation reference signal group corresponding to the codeword.
  • the processor 10 is specifically configured to: determine, according to a correspondence between a codeword and an antenna port set, a demodulation reference signal group corresponding to the codeword, where an antenna port in the antenna port set is the solution Adjusting an antenna port of the demodulation reference signal included in the reference signal group; and/or determining the codeword corresponding according to a correspondence between the codeword and a pilot pattern or a time-frequency resource of the demodulation reference signal in the demodulation reference signal group And demodulating the reference signal group; and/or determining a demodulation reference signal group corresponding to the codeword according to a correspondence between the codeword and a demodulation reference signal sequence of the demodulation reference signal in the demodulation reference signal group.
  • the first information is a transport layer used by the network side device, and the processor 10 is specifically configured to: determine a demodulation reference signal group corresponding to the transport layer.
  • the processor 10 is specifically configured to: determine, according to a correspondence between the transport layer information and the antenna port set, a demodulation reference signal group corresponding to the transport layer, where the antenna port in the antenna port set is the Demodulating an antenna port of the demodulation reference signal included in the reference signal group; and/or determining the transmission according to a correspondence between the transmission layer information and a pilot pattern or a time-frequency resource of the demodulation reference signal in the demodulation reference signal group a demodulation reference signal group corresponding to the layer; and/or determining a demodulation reference signal group corresponding to the transmission layer according to a correspondence between the transmission layer information and a demodulation reference signal sequence of the demodulation reference signal in the demodulation reference signal group.
  • the transmitter 20 is further configured to: send the first information to the second network side device, so that the second network side device determines a demodulation reference signal group used by the second network side device. .
  • the transmitter 20 is further configured to: send, to the second network side device, indication information, where the indication information is used to indicate a demodulation reference signal group used by the first network side device, and/or And indicating a demodulation reference signal group used by the second network side device.
  • the transmitter 20 is further configured to: send the first information of the first network side device to the terminal, so that the terminal determines a demodulation reference signal group used by the first network side device. .
  • the receiver 30 is configured to receive first information of the first network side device sent by the first network side device, where the first network The first information of the side device is different from the first information of the network side device; the processor 10, the first information for the first network side device determines first information of the network side device; and according to the network side device An information is used to determine a demodulation reference signal group; and a transmitter 20 is configured to transmit one or more demodulation reference signals in the demodulation reference signal group to the terminal.
  • the receiver 30 is further configured to: receive the indication information sent by the first network side device, where the indication information is used to indicate a demodulation reference signal group used by the first network side device, and/or A demodulation reference signal group used to indicate use by the network side device.
  • the first information of the network side device is a cell identifier of a cell of the network side device
  • the processor 10 is specifically configured to: determine a demodulation reference corresponding to a cell identifier of a cell of the network side device Signal group.
  • the first information of the network side device is a codeword used by the network side device, and the processor 10 is specifically configured to: determine a demodulation reference signal group corresponding to the codeword.
  • the processor 10 is specifically configured to: determine, according to a correspondence between a codeword and an antenna port set, a demodulation reference signal group corresponding to the codeword, where an antenna port in the antenna port set is the solution Adjusting an antenna port of the demodulation reference signal included in the reference signal group; and/or determining the codeword corresponding according to a correspondence between the codeword and a pilot pattern or a time-frequency resource of the demodulation reference signal in the demodulation reference signal group And demodulating the reference signal group; and/or determining a demodulation reference signal group corresponding to the codeword according to a correspondence between the codeword and a demodulation reference signal sequence of the demodulation reference signal in the demodulation reference signal group.
  • the first information of the network side device is a transport layer used by the network side device, and the processor 10 is specifically configured to: determine a demodulation reference signal group corresponding to the transport layer.
  • the processor 10 is specifically configured to: determine, according to a correspondence between the transport layer information and the antenna port set, a demodulation reference signal group corresponding to the transport layer, where the antenna port in the antenna port set is the Demodulating an antenna port of the demodulation reference signal included in the reference signal group; and/or determining the transmission according to a correspondence between the transmission layer information and a pilot pattern or a time-frequency resource of the demodulation reference signal in the demodulation reference signal group a demodulation reference signal group corresponding to the layer; and/or determining a demodulation reference signal group corresponding to the transmission layer according to a correspondence between the transmission layer information and a demodulation reference signal sequence of the demodulation reference signal in the demodulation reference signal group.
  • the transmitter 20 is further configured to: send the first information of the second network side device to the terminal, so that the terminal determines a demodulation reference signal group used by the second network side device. .
  • the receiver 30 is configured to receive first information of the first network side device that is sent by the first network side device, and first information of the second network side device that is sent by the second network side device; The first information of the first network side device is different from the first information of the second network side device; the processor 10 is configured to determine, according to the first information of the first network side device, the first network side device Demodulating a reference signal group, and determining, according to the first information of the second network side device, a demodulation reference signal group used by the second network side device; the demodulation reference signal group includes one or more demodulation reference And demodulating the first partial data received from the first network side device according to one or more demodulation reference signals used by the first network side device, and according to the And demodulating the second partial data received from the second network side device by one or more demodulation reference signals in the demodulation reference signal group used by the network side device.
  • the first information of the first network side device is a cell identifier of a cell of the first network side device
  • the processor 10 is specifically configured to: determine a cell of a cell of the first network side device Identifying the corresponding demodulation reference signal group.
  • the first information of the first network side device is a codeword used by the first network side device
  • the processor 10 is specifically configured to: determine a solution corresponding to the codeword used by the first network side device Adjust the reference signal group.
  • the processor 10 is configured to determine, according to a correspondence between a codeword and an antenna port set, a demodulation reference signal group corresponding to a codeword used by the first network side device, where the antenna port set is used.
  • the antenna port is an antenna port of the demodulation reference signal included in the demodulation reference signal group; and/or according to a correspondence between a codeword and a pilot pattern or a time-frequency resource of the demodulation reference signal in the demodulation reference signal group Determining, by the first network side device, a demodulation reference signal group corresponding to the codeword used by the first network side device; and/or determining the corresponding relationship according to the codeword and the demodulation reference signal sequence of the demodulation reference signal in the demodulation reference signal group.
  • Demodulation reference signal groups corresponding to codewords used by the first network side device.
  • the first information of the first network side device is transport layer information used by the first network side device
  • the processor 10 is specifically configured to: determine that the transport layer information used by the first network side device corresponds to Demodulation reference signal group.
  • the processor 10 is specifically configured to: determine, according to a correspondence between the transport layer information and the antenna port set, a demodulation reference signal group corresponding to the transport layer information used by the first network side device, where the antenna port is An antenna port in the set is an antenna port of the demodulation reference signal included in the demodulation reference signal group; and/or a pilot pattern or a time-frequency resource according to the transmission layer information and the demodulation reference signal in the demodulation reference signal group Corresponding relationship, determining a demodulation reference signal group corresponding to the transmission layer information used by the first network side device; and/or demodulating reference signal sequence according to the transmission layer information and the demodulation reference signal in the demodulation reference signal group Corresponding relationship, determining a demodulation reference signal group corresponding to the transport layer information used by the first network side device.
  • the first information of the second network side device is a cell identifier of a cell of the second network side device
  • the processor 10 is specifically configured to: determine a cell of a cell of the second network side device Identify the corresponding demodulation reference signal group.
  • the first information of the second network side device is a codeword used by the second network side device; the processor 10 is specifically configured to: determine a solution corresponding to the codeword used by the second network side device Adjust the reference signal group.
  • the processor 10 is configured to determine, according to a correspondence between a codeword and an antenna port set, a demodulation reference signal group corresponding to a codeword used by the second network side device, where the antenna port set is used.
  • the antenna port is an antenna port of the demodulation reference signal included in the demodulation reference signal group; and/or according to a correspondence between a codeword and a pilot pattern or a time-frequency resource of the demodulation reference signal in the demodulation reference signal group Determining, by the second network side device, a demodulation reference signal group corresponding to the codeword used by the second network side device; and/or determining the corresponding relationship according to the codeword and the demodulation reference signal sequence of the demodulation reference signal in the demodulation reference signal group.
  • the demodulation reference signal group corresponding to the codeword used by the second network side device.
  • the first information of the second network side device is the transport layer information used by the second network side device; the processor 10 is specifically configured to: determine that the transport layer information used by the second network side device corresponds to Demodulation reference signal group.
  • the processor 10 is specifically configured to: determine, according to a correspondence between the transport layer information and the antenna port set, a demodulation reference signal group corresponding to the transport layer information used by the second network side device, where the antenna port is An antenna port in the set is an antenna port of the demodulation reference signal included in the demodulation reference signal group; and/or a pilot pattern or a time-frequency resource according to the transmission layer information and the demodulation reference signal in the demodulation reference signal group Corresponding relationship, determining a demodulation reference signal group corresponding to the transmission layer information used by the second network side device; and/or demodulating reference signal sequence according to the transmission layer information and the demodulation reference signal in the demodulation reference signal group Corresponding relationship, determining a demodulation reference signal group corresponding to the transport layer information used by the second network side device.
  • the receiver 30 is further configured to: receive the indication information sent by the first network side device, where the indication information is used to indicate a demodulation reference signal group used by the first network side device, and/or And a demodulation reference signal group for indicating use by the second network side device.
  • an embodiment of the present invention further provides a data transmission apparatus, where the data transmission apparatus includes a functional module for performing the foregoing method steps.
  • embodiments of the invention may be provided as a method, system, or computer program product.
  • embodiments of the invention may be in the form of an entirely hardware embodiment, an entirely software embodiment, or a combination of software and hardware.
  • embodiments of the invention may take the form of a computer program product embodied on one or more computer usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) including computer usable program code.
  • Embodiments of the invention are described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flowchart illustrations and/or FIG.
  • These computer program instructions can be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing device to produce a machine for the execution of instructions for execution by a processor of a computer or other programmable data processing device.
  • the computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device.
  • the apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.
  • These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programmable device.
  • the instructions provide steps for implementing the functions specified in one or more of the flow or in a block or blocks of a flow diagram.

Landscapes

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

Abstract

一种数据传输方法、网络侧设备及终端设备，该方法包括：第一网络侧设备确定第一信息，第一网络侧设备根据第一信息确定解调参考信号组，解调参考信号组包括一个或多个解调参考信号，第一网络侧设备向终端发送所述解调参考信号组中的一个或多个解调参考信号。通过第一网络侧设备根据第一信息确定采用的解调参考信号组，使得第一网络侧设备采用的解调参考信号组与第二网络侧设备采用的解调参考信号组不同，可以保证第一网络侧设备和第二网络侧设备采用正交的解调参考信号，避免出现因不同的基站采用了解调参考信号无法正交引起的终端解调能力差的问题。

Description

一种数据传输的方法、网络侧设备及终端设备
本申请要求在2017年01月06日提交中华人民共和国知识产权局、申请号为201710011419.0、发明名称为“一种数据传输的方法、网络侧设备及终端设备”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
本发明涉及通信技术领域，特别涉及一种数据传输方法、网络侧设备及终端设备。
背景技术
多输入多输出(英文：Multiple Input Multiple Output，简称：MIMO)技术(也可以称为多天线技术)可以通过空间分集提升系统可靠性、空间复用提升系统容量、波束赋形提升小区覆盖。长期演进(英文：Long Term Evolution，简称：LTE)系统的物理层基本技术即包括MIMO技术。
LTE的多天线系统中，为了区分不同的信道，定义了不同的逻辑端口(port)，其中，解调参考信号(英文：Demodulation-Reference Signal，简称：DM-RS)，用于进行数据解调的参考信号，例如在现有LTE系统中的用户级参考信号可以作为解调参考信号，通过天线端口5、天线端口7、天线端口8或者天线端口7-14中的一个或多个天线端口发送，所以这些用于发送DM-RS的天线端口又称为DM-RS端口。同样的，数据也会在不同的天线端口上进行发送，例如在天线端口5、天线端口7、天线端口8等一个或多个天线端口发送，这些用于发送数据的天线端口又称为数据端口。接收端可以利用与数据端口相同的天线端口上发送的DM-RS进行信道估计和数据解调。
LTE在版本10中，引入了新的传输模式，即传输模式9，支持8个天线端口，并支持多用户MIMO传输。为了支持8天线传输，基站需要在物理下行控制信道，如LTE中的理下行控制信道(英文：Physical Downlink Control Channel，简称：PDCCH)中指示用户物理下行共享信道(如LTE中的PDSCH，英文：Physical Downlink Shared Channel)数据对应的预编码层数以及DM-RS对应的天线端口号，终端设备通过检测PDCCH中相应的指示域，可以得到其接收的PDSCH数据包含多少层以及每层对应的天线端口，终端设备通过天线端口发送的DM-RS进行信道估计，然后进行PDSCH的数据解调。
LTE在第三代合作伙伴计划(英文：3rd Generation Partnership Project，简称：3GPP)版本11中，为了支持多点协作传输，引入了天线端口准共址，在LTE系统中简称为QCL(英文：Quasi Co-Located)的概念。从QCL的天线端口发送出的信号会经过相同的大尺度衰落。大尺度衰落可以包括时延扩展、多普勒扩展、多普勒频移、平均信道增益和平均时延中的一项或者多项，也可以是其他的用于表征大尺度信道特征的参数。为了支持终端设备从服务基站通过PDCCH接收下行控制信息，从协作基站通过PDSCH接收下行数据，版本11中定义了一种新的传输模式，即传输模式10，主要引入了物理下行共享信道资源元素映射以及准共址指示，在LTE系统中简称为PQI(英文：PDSCH RE Mapping and QCL Indicator)，用来指示下行数据是从哪一个基站发送的，其对应的信道大尺度特征与哪一组天线端口一致。UE根据PQI，结合无线资源控制(英文：Radio Resource Control，简称：RRC)信令配置的PDSCH映射消息元素，可以得知解调该下行数据需要使用哪一组天线 端口对应的无线信道参数。
由于不同的基站在协作向UE发送数据时，在有基站交互时延的场景下，如果实时交互基站的DMRS情况，调度结果会因为交互时延而变得不适用，比如不匹配真正数据传输的信道状况，进而导致协作传输性能变差。如果不交互，不同基站采用随机的DM-RS，就会出现不同基站之间采用的DM-RS无法形成正交，导致UE解调数据的能力差。
发明内容
本发明实施例提供一种数据传输方法、网络侧设备及终端设备，用以实现协作传输下不同基站采用正交的解调参考信号的目的。
第一方面，提供一种数据传输方法，包括：
第一网络侧设备确定第一信息，所述第一信息与第二网络侧设备所使用的第一信息不同；所述第一网络侧设备根据所述第一信息确定解调参考信号组；所述解调参考信号组包括一个或多个解调参考信号；所述第一网络侧设备向终端发送所述解调参考信号组中的一个或多个解调参考信号。
在本发明实施例的方案中，第一网络侧设备根据第一信息确定采用的解调参考信号组，使得第一网络侧设备采用的解调参考信号组与第二网络侧设备采用的解调参考信号组不同，可以保证第一网络侧设备和第二网络侧设备采用正交的解调参考信号，避免出现因不同的基站采用了解调参考信号无法正交引起的终端解调能力差的问题。
结合第一方面，在第一方面的第一种可能的实现方式中，所述第一信息为所述第一网络侧设备的小区的小区标识；所述第一网络侧设备根据所述第一信息确定解调参考信号组，包括：所述第一网络侧设备确定所述小区的小区标识对应的所述解调参考信号组。
第一网络侧设备只需要知道自身的小区的小区标识，并通知给第二网络侧设备，并根据小区的小区标识与解调参考信号组的对应关系，得知自己使用的解调参考信号组，保证了采用的解调参考信号组与第二网络侧设备的不同。
结合第一方面，在第一方面的第二种可能的实现方式中，所述第一信息为第一网络侧设备使用的码字；所述第一网络侧设备根据所述第一信息确定解调参考信号组，包括：所述第一网络侧设备确定所述码字对应的解调参考信号组。
第一网络侧设备只需要知道自身采用的码字，并通知给第二网络侧设备，即可以使得第二网络侧设备需要采用的码字，并根据码字与解调参考信号组的对应关系，得知自己使用的解调参考信号组，保证了采用的解调参考信号组与第二网络侧设备的不同。
结合第一方面或第一方面的第二种可能的实现方式，在第一方面的第三种可能的实现方式中，所述第一网络侧设备确定所述码字对应的解调参考信号组，包括：所述第一网络侧设备根据码字与天线端口集合的对应关系，确定所述码字对应的解调参考信号组，所述天线端口集合中的天线端口为所述解调参考信号组中包括的解调参考信号的天线端口；和/或所述第一网络侧设备根据码字与解调参考信号组中解调参考信号的导频图案或时频资源的对应关系，确定所述码字对应的解调参考信号组；和/或所述第一网络侧设备根据码字与解调参考信号组中解调参考信号的解调参考信号序列的对应关系，确定所述码字对应的解调参考信号组。
结合第一方面，在第一方面的第四种可能的实现方式中，所述第一信息为第一网络侧设备使用的传输层信息；所述第一网络侧设备根据所述第一信息确定解调参考信号组，包 括：所述第一网络侧设备确定所述传输层信息对应的解调参考信号组。
结合第一方面或第一方面的第四种可能的实现方式，在第一方面的第五种可能的实现方式中，所述第一网络侧设备确定所述传输层信息对应的解调参考信号组，包括：所述第一网络侧设备根据传输层信息与天线端口集合的对应关系，确定所述传输层信息对应的解调参考信号组，所述天线端口集合中的天线端口为所述解调参考信号组中包括的解调参考信号的天线端口；和/或所述第一网络侧设备根据传输层信息与解调参考信号组中解调参考信号的导频图案或时频资源的对应关系，确定所述传输层信息对应的解调参考信号组；和/或所述第一网络侧设备根据传输层信息与解调参考信号组中解调参考信号的解调参考信号序列的对应关系，确定所述传输层信息对应的解调参考信号组。
结合第一方面或第一方面的第一种可能的实现方式至第一方面的第五种可能的实现方式中的任意一种，在第一方面的第六种可能的实现方式中，所述第一网络侧设备确定第一信息，还包括：所述第一网络侧设备向所述第二网络侧设备发送第一信息，以使所述第二网络侧设备确定所述第二网络侧设备使用的解调参考信号组。
结合第一方面或第一方面的第一种可能的实现方式至第一方面的第六种可能的实现方式中的任意一种，在第一方面的第七种可能的实现方式中，所述第一网络侧设备根据所述第一信息确定解调参考信号组，还包括：所述第一网络侧设备向所述第二网络侧设备和/或所述终端发送指示信息，所述指示信息用于指示所述第一网络侧设备使用的解调参考信号组和/或用于指示所述第二网络侧设备使用的解调参考信号组。
结合第一方面或第一方面的第一种可能的实现方式至第一方面的第七种可能的实现方式中的任意一种，在第一方面的第八种可能的实现方式中，在所述第一网络侧设备确定第一信息之后，还包括：所述第一网络侧设备向所述终端发送所述第一网络侧设备的第一信息，以使所述终端确定所述第一网络侧设备使用的解调参考信号组。
第二方面，提供一种数据传输的方法，包括：
第二网络侧设备接收第一网络侧设备发送的第一网络侧设备的第一信息，所述第一网络侧设备的第一信息所述第二网络侧设备的第一信息不同；所述第二网络侧设备根据所述第一网络侧设备的第一信息确定第二网络侧设备的第一信息；所述第二网络侧设备根据所述第二信息确定解调参考信号组；所述第二网络侧设备向终端发送所述解调参考信号组中的一个或多个解调参考信号。
结合第二方面，在第二方面的第一种可能的实现方式中，还包括：所述第二网络侧设备接收所述第一网络侧设备发送的指示信息，所述指示信息用于指示所述第一网络侧设备使用的解调参考信号组和/或用于指示所述第二网络侧设备使用的解调参考信号组。
结合第二方面，在第二方面的第二种可能的实现方式中，所述第二网络侧设备的第一信息为所述第二网络侧设备的小区的小区标识；所述第二网络侧设备根据所述第二网络侧设备的第一信息确定解调参考信号组，包括：所述第二网络侧设备确定所述第二网络侧设备的小区的小区标识对应的解调参考信号组。
结合第二方面，在第二方面的第三种可能的实现方式中，所述第二网络侧设备的第一信息为第二网络侧设备使用的码字；所述第二网络侧设备根据所述第二网络侧设备的第一信息确定解调参考信号组，包括：所述第二网络侧设备确定所述码字对应的解调参考信号组。
第二网络侧设备只需要知道第一网络侧设备采用的码字，即可以知道自己需要采用的 码字，从而使得第二网络侧设备可以根据码字与解调参考信号组的对应关系，得知自己使用的解调参考信号组，保证了采用的解调参考信号组与第一网络侧设备的不同。
结合第二方面或第二方面的第三种可能的实现方式，在第二方面的第四种可能的实现方式中，所述第二网络侧设备确定所述码字对应的解调参考信号组，包括：所述第二网络侧设备根据码字与天线端口集合的对应关系，确定所述码字对应的解调参考信号组，所述天线端口集合中的天线端口为所述解调参考信号组中包括的解调参考信号的天线端口；和/或所述第二网络侧设备根据码字与解调参考信号组中解调参考信号的导频图案或时频资源的对应关系，确定所述码字对应的解调参考信号组；和/或所述第二网络侧设备根据码字与解调参考信号组中解调参考信号的解调参考信号序列的对应关系，确定所述码字对应的解调参考信号组。
结合第二方面，在第二方面的第五种可能的实现方式中，所述第二网络侧设备的第一信息为第二网络侧设备使用的传输层信息；所述第二网络侧设备根据所述第二网络侧设备的第一信息确定解调参考信号组，包括：所述第二网络侧设备确定所述传输层信息对应的解调参考信号组。
结合第二方面或第二方面的第五种可能的实现方式，在第二方面的第六种可能的实现方式中，所述第二网络侧设备确定所述传输层信息对应的解调参考信号组，包括：所述第二网络侧设备根据传输层信息与天线端口集合的对应关系，确定所述传输层信息对应的解调参考信号组，所述天线端口集合中的天线端口为所述解调参考信号组中包括的解调参考信号的天线端口；和/或所述第二网络侧设备根据传输层信息与解调参考信号组中解调参考信号的导频图案或时频资源的对应关系，确定所述传输层信息对应的解调参考信号组；和/或所述第二网络侧设备根据传输层信息与解调参考信号组中解调参考信号的解调参考信号序列的对应关系，确定所述传输层信息对应的解调参考信号组。
结合第二方面或第二方面的第一种可能的实现方式至第二方面的第六种可能的实现方式中的任意一种，在第二方面的第七种可能的实现方式中，在所述第二网络侧设备根据所述第一网络侧设备的第一信息确定第二网络侧设备的第一信息之后，还包括：所述第二网络侧设备向所述终端发送所述第二网络侧设备的第一信息，以使所述终端确定所述第二网络侧设备使用的解调参考信号组。
第三方面，提供一种数据传输的方法，包括：
终端接收第一网络侧设备发送的第一网络侧设备的第一信息以及第二网络侧设备发送的第二网络侧设备的第一信息；所述第一网络侧设备的第一信息与第二网络侧设备的第一信息不同；所述终端根据所述第一网络侧设备的第一信息确定所述第一网络侧设备使用的解调参考信号组，以及根据所述第二网络侧设备的第一信息确定所述第二网络侧设备使用的解调参考信号组；所述解调参考信号组包括一个或多个解调参考信号；所述终端根据所述第一网络侧设备使用的解调参考信号组中的一个或多个解调参考信号解调从所述第一网络侧设备接收到的第一部分数据，以及根据所述第二网络侧设备使用的解调参考信号组中的一个或多个解调参考信号解调从所述第二网络侧设备接收到的第二部分数据。
结合第三方面，在第三方面的第一种可能的实现方式中，所述第一网络侧设备的第一信息为所述第一网络侧设备的小区的小区标识；所述终端根据所述第一网络侧设备的第一信息所述第一网络侧设备使用的解调参考信号组，包括：所述终端确定所述第一网络侧设备的小区的小区标识对应的所述解调参考信号组。
结合第三方面，在第三方面的第二种可能的实现方式中，所述第一网络侧设备的第一信息为第一网络侧设备使用的码字；所述终端根据所述第一网络侧设备的第一信息确定所述第一网络侧设备使用的解调参考信号组，包括：所述终端确定所述第一网络侧设备使用的码字对应的解调参考信号组。
结合第三方面或第三方面的第二种可能的实现方式，在第三方面的第三种可能的实现方式中，所述终端确定所述第一网络侧设备使用的码字对应的解调参考信号组，包括：所述终端根据码字与天线端口集合的对应关系，确定所述第一网络侧设备使用的码字对应的解调参考信号组，所述天线端口集合中的天线端口为所述解调参考信号组中包括的解调参考信号的天线端口；和/或所述终端根据码字与解调参考信号组中解调参考信号的导频图案或时频资源的对应关系，确定所述第一网络侧设备使用的码字对应的解调参考信号组；和/或所述终端根据码字与解调参考信号组中解调参考信号的解调参考信号序列的对应关系，确定所述第一网络侧设备使用的码字对应的解调参考信号组。
结合第三方面，在第三方面的第四种可能的实现方式中，所述第一网络侧设备的第一信息为第一网络侧设备使用的传输层信息；所述终端根据所述第一网络侧设备的第一信息确定所述第一网络侧设备使用的解调参考信号组，包括：所述终端确定所述第一网络侧设备使用的传输层信息对应的解调参考信号组。
结合第三方面或第三方面的第四种可能的实现方式，在第三方面的第五种可能的实现方式中，所述终端确定所述第一网络侧设备使用的传输层信息对应的解调参考信号组，包括：所述终端根据传输层信息与天线端口集合的对应关系，确定所述第一网络侧设备使用的传输层信息对应的解调参考信号组，所述天线端口集合中的天线端口为所述解调参考信号组中包括的解调参考信号的天线端口；和/或所述终端根据传输层信息与解调参考信号组中解调参考信号的导频图案或时频资源的对应关系，确定所述第一网络侧设备使用的传输层信息对应的解调参考信号组；和/或所述终端根据传输层信息与解调参考信号组中解调参考信号的解调参考信号序列的对应关系，确定所述第一网络侧设备使用的传输层信息对应的解调参考信号组。
结合第三方面或第三方面的第一种可能的实现方式至第三方面的第五种可能的实现方式中的任意一种，在第三方面的第六种可能的实现方式中，所述第二网络侧设备的第一信息为所述第二网络侧设备的小区的小区标识；所述终端根据所述第二网络侧设备的第一信息确定所述第二网络侧设备使用的解调参考信号组，包括：所述终端确定所述第二网络侧设备的小区的小区标识对应的解调参考信号组。
结合第三方面或第三方面的第一种可能的实现方式至第三方面的第六种可能的实现方式中的任意一种，在第三方面的第七种可能的实现方式中，所述第二网络侧设备的第一信息为第二网络侧设备使用的码字；所述终端根据所述第二网络侧设备的第一信息确定所述第二网络侧设备使用的解调参考信号组，包括：所述终端确定所述第二网络侧设备使用的码字对应的解调参考信号组。
结合第三方面或第三方面的第七种可能的实现方式，在第三方面的第八种可能的实现方式中，所述第二网络侧设备确定所述第二网络侧设备使用的码字对应的解调参考信号组，包括：所述终端根据码字与天线端口集合的对应关系，确定所述第二网络侧设备使用的码字对应的解调参考信号组，所述天线端口集合中的天线端口为所述解调参考信号组中包括的解调参考信号的天线端口；和/或所述终端根据码字与解调参考信号组中解调参考信 号的导频图案或时频资源的对应关系，确定所述第二网络侧设备使用的码字对应的解调参考信号组；和/或所述终端根据码字与解调参考信号组中解调参考信号的解调参考信号序列的对应关系，确定所述第二网络侧设备使用的码字对应的解调参考信号组。
结合第三方面或第三方面的第一种可能的实现方式至第三方面的第八种可能的实现方式中的任意一种，在第三方面的第九种可能的实现方式中，所述第二网络侧设备的第一信息为第二网络侧设备使用的传输层信息；所述终端根据所述第二网络侧设备的第一信息确定所述第二网络侧设备使用的解调参考信号组，包括：所述终端确定所述第二网络侧设备使用的传输层信息对应的解调参考信号组。
结合第三方面或第三方面的第九种可能的实现方式，在第三方面的第十种可能的实现方式中，所述第二网络侧设备确定所述第二网络侧设备使用的传输层信息对应的解调参考信号组，包括：所述终端根据传输层信息与天线端口集合的对应关系，确定所述第二网络侧设备使用的传输层信息对应的解调参考信号组，所述天线端口集合中的天线端口为所述解调参考信号组中包括的解调参考信号的天线端口；和/或所述终端根据传输层信息与解调参考信号组中解调参考信号的导频图案或时频资源的对应关系，确定所述第二网络侧设备使用的传输层信息对应的解调参考信号组；和/或所述终端根据传输层信息与解调参考信号组中解调参考信号的解调参考信号序列的对应关系，确定所述第二网络侧设备使用的传输层信息对应的解调参考信号组。
结合第三方面或第三方面的第十种可能的实现方式，在第三方面的第十一种可能的实现方式中，还包括：所述终端接收所述第一网络侧设备发送的指示信息，所述指示信息用于指示所述第一网络侧设备使用的解调参考信号组和/或用于指示所述第二网络侧设备使用的解调参考信号组。
第四方面，提供一种网络侧设备，包括：
处理器，用于确定第一信息，所述第一信息与第二网络侧设备所使用的第一信息不同；以及根据所述第一信息确定解调参考信号组；所述解调参考信号组包括一个或多个解调参考信号；发送器，用于向终端发送所述解调参考信号组中的一个或多个解调参考信号。
结合第四方面，在第四方面的第一种可能的实现方式中，所述第一信息为所述网络侧设备的小区的小区标识；所述处理器具体用于：确定所述小区的小区标识对应的所述解调参考信号组。
结合第四方面，在第四方面的第二种可能的实现方式中，所述第一信息为网络侧设备使用的码字；所述处理器具体用于：确定所述码字对应的解调参考信号组。
结合第四方面或第四方面的第二种可能的实现方式，在第四方面的第三种可能的实现方式中，所述处理器具体用于：根据码字与天线端口集合的对应关系，确定所述码字对应的解调参考信号组，所述天线端口集合中的天线端口为所述解调参考信号组中包括的解调参考信号的天线端口；和/或根据码字与解调参考信号组中解调参考信号的导频图案或时频资源的对应关系，确定所述码字对应的解调参考信号组；和/或根据码字与解调参考信号组中解调参考信号的解调参考信号序列的对应关系，确定所述码字对应的解调参考信号组。
结合第四方面，在第四方面的第四种可能的实现方式中，所述第一信息为网络侧设备使用的传输层信息；所述处理器具体用于：确定所述传输层信息对应的解调参考信号组。
结合第四方面或第四方面的第四种可能的实现方式，在第四方面的第五种可能的实现方式中，所述处理器具体用于：根据传输层信息与天线端口集合的对应关系，确定所述传 输层信息对应的解调参考信号组，所述天线端口集合中的天线端口为所述解调参考信号组中包括的解调参考信号的天线端口；和/或根据传输层信息与解调参考信号组中解调参考信号的导频图案或时频资源的对应关系，确定所述传输层信息对应的解调参考信号组；和/或根据传输层信息与解调参考信号组中解调参考信号的解调参考信号序列的对应关系，确定所述传输层信息对应的解调参考信号组。
结合第四方面或第四方面的第一种可能的实现方式至第四方面的第五种可能的实现方式中的任意一种，在第四方面的第六种可能的实现方式中，所述发送器还用于：向所述第二网络侧设备发送第一信息，以使所述第二网络侧设备确定所述第二网络侧设备使用的解调参考信号组。
结合第四方面或第四方面的第一种可能的实现方式至第四方面的第六种可能的实现方式中的任意一种，在第四方面的第七种可能的实现方式中，所述发送器还用于：向所述第二网络侧设备发送指示信息，所述指示信息用于指示所述第一网络侧设备使用的解调参考信号组和/或用于指示所述第二网络侧设备使用的解调参考信号组。
结合第四方面或第四方面的第一种可能的实现方式至第四方面的第七种可能的实现方式中的任意一种，在第四方面的第八种可能的实现方式中，所述发送器还用于：向所述终端发送所述第一网络侧设备的第一信息，以使所述终端确定所述第一网络侧设备使用的解调参考信号组。
第五方面，提供一种网络侧设备，包括：
接收器，用于接收第一网络侧设备发送的第一网络侧设备的第一信息，所述第一网络侧设备的第一信息所述网络侧设备的第一信息不同；处理器，用于根据所述第一网络侧设备的第一信息确定网络侧设备的第一信息；以及根据所述网络侧设备的第一信息确定解调参考信号组；发送器，用于向终端发送所述解调参考信号组中的一个或多个解调参考信号。
结合第五方面，在第五方面的第一种可能的实现方式中，所述接收器还用于：接收所述第一网络侧设备发送的指示信息，所述指示信息用于指示所述第一网络侧设备使用的解调参考信号组和/或用于指示所述网络侧设备使用的解调参考信号组。
结合第五方面，在第五方面的第二种可能的实现方式中，所述网络侧设备的第一信息为所述网络侧设备的小区的小区标识；所述处理器具体用于：确定所述网络侧设备的小区的小区标识对应的解调参考信号组。
结合第五方面，在第五方面的第三种可能的实现方式中，所述网络侧设备的第一信息为网络侧设备使用的码字；所述处理器具体用于：确定所述码字对应的解调参考信号组。
结合第五方面或第五方面的第三种可能的实现方式，在第五方面的第四种可能的实现方式中，所述处理器具体用于：根据码字与天线端口集合的对应关系，确定所述码字对应的解调参考信号组，所述天线端口集合中的天线端口为所述解调参考信号组中包括的解调参考信号的天线端口；和/或根据码字与解调参考信号组中解调参考信号的导频图案或时频资源的对应关系，确定所述码字对应的解调参考信号组；和/或根据码字与解调参考信号组中解调参考信号的解调参考信号序列的对应关系，确定所述码字对应的解调参考信号组。
结合第五方面，在第五方面的第五种可能的实现方式中，所述网络侧设备的第一信息为网络侧设备使用的传输层信息；所述处理器具体用于：确定所述传输层信息对应的解调参考信号组。
结合第五方面或第五方面的第五种可能的实现方式，在第五方面的第六种可能的实现 方式中，所述处理器具体用于：根据传输层信息与天线端口集合的对应关系，确定所述传输层信息对应的解调参考信号组，所述天线端口集合中的天线端口为所述解调参考信号组中包括的解调参考信号的天线端口；和/或根据传输层信息与解调参考信号组中解调参考信号的导频图案或时频资源的对应关系，确定所述传输层信息对应的解调参考信号组；和/或根据传输层信息与解调参考信号组中解调参考信号的解调参考信号序列的对应关系，确定所述传输层信息对应的解调参考信号组。
结合第五方面或第五方面的第一种可能的实现方式至第五方面的第六种可能的实现方式中的任意一种，在第五方面的第七种可能的实现方式中，所述发送器还用于：向所述终端发送所述第二网络侧设备的第一信息，以使所述终端确定所述第二网络侧设备使用的解调参考信号组。
第六方面，提供一种终端设备，包括：
接收器，用于接收第一网络侧设备发送的第一网络侧设备的第一信息以及第二网络侧设备发送的第二网络侧设备的第一信息；所述第一网络侧设备的第一信息与第二网络侧设备的第一信息不同；处理器，用于根据所述第一网络侧设备的第一信息确定所述第一网络侧设备使用的解调参考信号组，以及根据所述第二网络侧设备的第一信息确定所述第二网络侧设备使用的解调参考信号组；所述解调参考信号组包括一个或多个解调参考信号；以及根据所述第一网络侧设备使用的解调参考信号组中的一个或多个解调参考信号解调从所述第一网络侧设备接收到的第一部分数据，以及根据所述第二网络侧设备使用的解调参考信号组中的一个或多个解调参考信号解调从所述第二网络侧设备接收到的第二部分数据。
结合第六方面，在第六方面的第一种可能的实现方式中，所述第一网络侧设备的第一信息为所述第一网络侧设备的小区的小区标识；所述处理器具体用于：确定所述第一网络侧设备的小区的小区标识对应的所述解调参考信号组。
结合第六方面，在第六方面的第二种可能的实现方式中，所述第一网络侧设备的第一信息为第一网络侧设备使用的码字；所述处理器具体用于：确定所述第一网络侧设备使用的码字对应的解调参考信号组。
结合第六方面或第六方面的第二种可能的实现方式，在第六方面的第三种可能的实现方式中，所述处理器具体用于：根据码字与天线端口集合的对应关系，确定所述第一网络侧设备使用的码字对应的解调参考信号组，所述天线端口集合中的天线端口为所述解调参考信号组中包括的解调参考信号的天线端口；和/或根据码字与解调参考信号组中解调参考信号的导频图案或时频资源的对应关系，确定所述第一网络侧设备使用的码字对应的解调参考信号组；和/或根据码字与解调参考信号组中解调参考信号的解调参考信号序列的对应关系，确定所述第一网络侧设备使用的码字对应的解调参考信号组。
结合第六方面，在第六方面的第四种可能的实现方式中，所述第一网络侧设备的第一信息为第一网络侧设备使用的传输层信息；所述处理器具体用于：确定所述第一网络侧设备使用的传输层信息对应的解调参考信号组。
结合第六方面或第六方面的第四种可能的实现方式，在第六方面的第五种可能的实现方式中，所述处理器具体用于：根据传输层信息与天线端口集合的对应关系，确定所述第一网络侧设备使用的传输层信息对应的解调参考信号组，所述天线端口集合中的天线端口为所述解调参考信号组中包括的解调参考信号的天线端口；和/或根据传输层信息与解调参 考信号组中解调参考信号的导频图案或时频资源的对应关系，确定所述第一网络侧设备使用的传输层信息对应的解调参考信号组；和/或根据传输层信息与解调参考信号组中解调参考信号的解调参考信号序列的对应关系，确定所述第一网络侧设备使用的传输层信息对应的解调参考信号组。
结合第六方面或第六方面的第一种可能的实现方式至第六方面的第五种可能的实现方式中的任意一种，在第六方面的第六种可能的实现方式中，所述第二网络侧设备的第一信息为所述第二网络侧设备的小区的小区标识；所述处理器具体用于：确定所述第二网络侧设备的小区的小区标识对应的解调参考信号组。
结合第六方面或第六方面的第一种可能的实现方式至第六方面的第六种可能的实现方式中的任意一种，在第六方面的第七种可能的实现方式中，所述第二网络侧设备的第一信息为第二网络侧设备使用的码字；所述处理器具体用于：确定所述第二网络侧设备使用的码字对应的解调参考信号组。
结合第六方面或第六方面的第七种可能的实现方式，在第六方面的第八种可能的实现方式中，所述处理器具体用于：根据码字与天线端口集合的对应关系，确定所述第二网络侧设备使用的码字对应的解调参考信号组，所述天线端口集合中的天线端口为所述解调参考信号组中包括的解调参考信号的天线端口；和/或根据码字与解调参考信号组中解调参考信号的导频图案或时频资源的对应关系，确定所述第二网络侧设备使用的码字对应的解调参考信号组；和/或根据码字与解调参考信号组中解调参考信号的解调参考信号序列的对应关系，确定所述第二网络侧设备使用的码字对应的解调参考信号组。
结合第六方面或第六方面的第一种可能的实现方式至第六方面的第八种可能的实现方式中的任意一种，在第六方面的第九种可能的实现方式中，所述第二网络侧设备的第一信息为第二网络侧设备使用的传输层信息；所述处理器具体用于：确定所述第二网络侧设备使用的传输层信息对应的解调参考信号组。
结合第六方面或第六方面的第九种可能的实现方式，在第六方面的第十种可能的实现方式中，所述处理器具体用于：根据传输层信息与天线端口集合的对应关系，确定所述第二网络侧设备使用的传输层信息对应的解调参考信号组，所述天线端口集合中的天线端口为所述解调参考信号组中包括的解调参考信号的天线端口；和/或根据传输层信息与解调参考信号组中解调参考信号的导频图案或时频资源的对应关系，确定所述第二网络侧设备使用的传输层信息对应的解调参考信号组；和/或根据传输层信息与解调参考信号组中解调参考信号的解调参考信号序列的对应关系，确定所述第二网络侧设备使用的传输层信息对应的解调参考信号组。
结合第六方面或第六方面的第十种可能的实现方式，在第六方面的第十一种可能的实现方式中，所述接收器还用于：接收所述第一网络侧设备发送的指示信息，所述指示信息用于指示所述第一网络侧设备使用的解调参考信号组和/或用于指示所述第二网络侧设备使用的解调参考信号组。
第七方面，本发明实施例提供一种数据传输装置，所述数据传输装置包括用于实现第一方面所述的方法的功能模块。
第八方面，本发明实施例还提供一种数据传输装置，所述数据传输装置包括用于实现第二方面所述的方法的功能模块。
第九方面，本发明实施例还提供一种数据传输装置，所述数据传输装置包括用于实现 第三方面所述的方法的功能模块。
在一种可能的设计中，上述装置包括一个或多个处理器和通信单元。所述一个或多个处理器被配置为支持所述装置执行上述方法中网络侧设备(如第一网络侧设备，或，第二网络侧设备)相应的功能。例如，确定解调参考信号组。所述通信单元用于支持所述装置与其他设备通信，实现接收和/或发送功能。例如，发送所述解调参考信号组中的一个或多个解调参考信号。
可选的，所述装置还可以包括一个或多个存储器，所述存储器用于与处理器耦合，其保存网络侧设备必要的程序指令和/或数据。所述一个或多个存储器可以和处理器集成在一起，也可以与处理器分离设置。本申请并不限定。
所述装置可以为基站，gNB或TRP等，所述通信单元可以是收发器，或收发电路。可选的，所述收发器也可以为输入/输出电路或者接口。
所述装置还可以为通信芯片。所述通信单元可以为通信芯片的输入/输出电路或者接口。
另一个可能的设计中，上述装置，包括收发器、处理器和存储器。该处理器用于控制收发器收发信号，该存储器用于存储计算机程序，该处理器用于运行存储器中的计算机程序，使得该装置执行第一方面、第二方面、或第一方面至第二方面中任一种可能实现方式中网络侧设备完成的方法。
在一种可能的设计中，上述装置包括一个或多个处理器和通信单元。所述一个或多个处理器被配置为支持所述装置执行上述方法中终端设备(如终端)相应的功能。例如，确定解调参考信号组。所述通信单元用于支持所述装置与其他设备通信，实现接收和/或发送功能。例如，接收第一信息。
可选的，所述装置还可以包括一个或多个存储器，所述存储器用于与处理器耦合，其保存装置必要的程序指令和/或数据。所述一个或多个存储器可以和处理器集成在一起，也可以与处理器分离设置。本申请并不限定。
所述装置可以为智能终端或者可穿戴设备等，所述通信单元可以是收发器，或收发电路。可选的，所述收发器也可以为输入/输出电路或者接口。
所述装置还可以为通信芯片。所述通信单元可以为通信芯片的输入/输出电路或者接口。
另一个可能的设计中，上述装置，包括收发器、处理器和存储器。该处理器用于控制收发器收发信号，该存储器用于存储计算机程序，该处理器用于运行该存储器中的计算机程序，使得该装置执行第三方面或第三方面中任一种可能实现方式中终端设备完成的方法。
第十方面，本发明实施例还提供一种计算机存储介质，所述计算机存储介质上存储有程序代码，所述程序代码包括用于实现所述第一方面、第二方面或第三方面的方法的任意可能的实现方式的指令。
第十一方面，提供了一种系统，该系统包括上述终端设备和网络侧设备。
第十二方面，提供了一种计算机程序产品，所述计算机程序产品包括：计算机程序代码，当所述计算机程序代码在计算机上运行时，使得计算机执行上述第一方面，第二方面，第三方面，或第一至三方面中任一种可能实现方式中的方法。
附图说明
为了更清楚地说明本发明实施例中的技术方案，下面将对实施例描述中所需要使用的附图作简要介绍。
图1a-图1b为本发明实施例提供的一种通信系统结构图；
图2为本发明实施例提供的一种数据传输装置的结构图；
图3为本发明实施例提供的一种第一网络侧设备侧的数据传输方法的流程图；
图4为本发明实施例提供的一种导频图案的示意图。
具体实施方式
本发明实施例提供一种数据传输方法、网络侧设备及终端设备，用以实现协作传输下不同基站采用正交的解调参考信号的目的。
以下将详细描述本发明实施例中方案的实施过程、目的。
本发明实施例提供的一种数据传输方法，该方法可以应用于通信网络系统中。请参考图1a和图1b所示，为本发明实施例提供的一种可能的通信网络系统结构图。如图1a中所示的结构，该通信网络系统包括第一网络侧设备、第二网络侧设备和终端设备。第一网络侧设备为终端设备的服务网络侧设备，服务侧网络设备是指该通过无线空口协议为终端设备提供RRC连接、非接入层(英文：non-access stratum，简称：NAS)移动性管理和安全性输入等服务的网络侧设备。第一网络侧设备和终端设备可以通过空口协议进行通信。第二网络侧设备的数量可以是一个或多个，且与第一网络侧设备为满足不同QCL的网络侧设备，一般而言，第二网络侧设备与第一网络侧设备位于不同的地理位置。通常，第二网络侧设备为第一网络侧设备的邻网络侧设备。第二网络侧设备也可以通过空口协议进行数据传输。第二网络侧设备用于协助第一网络侧设备共同向终端设备进行数据传输，例如多流传输或者分集传输，所以第二网络侧设备也可以称为协作网络侧设备。第一网络侧设备和第二网络侧设备之间也可以进行通信，例如进行控制消息和/或指示信息的传递。
在实际运用中，第一网络侧设备也可以是协作网络侧设备，第二网络侧设备为服务网络侧设备。
另一方面，第一网络侧设备和第二网络侧设备可以是同一设备的不同传输点，例如两个距离较远的射频单元(英文：Radio Unit，简称：RU)或者称为射频头(英文：Radio Head，简称：RH)，或者是两个完全独立的网络侧设备，例如两个基站。也可以是同一基站下的不同的天线面板，在此不做限制。
在图1b所示的结构中，与图1a所示的结构不同的是，第一网络侧设备和第二网络侧设备同时接入集中调度器。第一网络侧设备和第二网络侧设备之间可以不用直接进行通信，而上述控制消息和/或指示信息均由集中调度器向第一网络侧设备和第二网络侧设备下达。
在实际部署时，集中调度器可以是单独的物理设备，也可以是集成在第一网络侧设备上的一个功能模块，或是集成在其他设备上的一个功能模块，在本文中不予限定。
应理解，图1a和图1b所示的通信系统中仅示出了一个终端设备(孤立终端)和两个网络侧设备的情形，但本发明并不限于此。该通信系统中还可包括除这两个网络侧设备以外的在相同的时频资源上传输业务的近邻网络侧设备和终端设备，每个网络侧设备的覆盖范围内还可以包括其它数量的终端设备。进一步可选的，图1a和图1b中网络侧设备和终 端设备所在的通信系统还可以包括网络控制器和/或移动管理实体等其它网络实体，本发明实施例不做限定。
本文中提到的网络侧设备，可以是全球移动通讯(英文：Global System of Mobile communication；简称：GSM)或码分多址(英文：Code Division Multiple Access；简称：CDMA)中的基站(英文：Base Transceiver Station；简称：BTS)中，也可以是宽带码分多址(英文：Wideband Code Division Multiple Access；简称：WCDMA)中的基站(英文：NodeB；简称NB)，还可以是长期演进(英文：Long Term Evolution；简称：LTE)中的演进型基站(英文：Evolutional Node B；简称：eNB或eNodeB)，或者中继站或接入点，或者未来5G网络中的基站，传输点(英文：Transmission and Receiver Point；简称：TRP或者TP)等，本文中并不限定。
本文中提到的终端设备，可以是无线终端设备也可以是有线终端设备，无线终端设备可以是指向用户提供语音和/或其他业务数据连通性的设备，具有无线连接功能的手持式设备、或连接到无线调制解调器的其他处理设备。无线终端设备可以经无线接入网(英文：Radio Access Network；简称：RAN)与一个或多个核心网进行通信，无线终端设备可以是移动终端，如移动电话(或称为“蜂窝”电话)和具有移动终端的计算机，例如，可以是便携式、袖珍式、手持式、计算机内置的或者车载的移动装置，它们与无线接入网交换语言和/或数据。例如，个人通信业务(英文：Personal Communication Service；简称：PCS)电话、无绳电话、会话发起协议(英文：Session Initiation Protocol；简称：SIP)话机、无线本地环路(英文：Wireless Local Loop；简称：WLL)站、个人数字助理(英文：Personal Digital Assistant；简称：PDA)等设备。无线终端设备也可以称为系统、订户单元(Subscriber Unit)、订户站(Subscriber Station)，移动站(Mobile Station)、移动台(Mobile)、远程站(Remote Station)、远程终端(Remote Terminal)、接入终端(Access Terminal)、用户终端(User Terminal)、用户代理(User Agent)、用户设备(User Device or User Equipment)。
终端设备也可以是网络侧设备，网络侧设备也可以是终端设备，该方案也适用于网络侧与网络侧通信，终端设备和终端设备通信的系统。
另外，本文中术语“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。另外，本文中字符“/”，一般表示前后关联对象是一种“或”的关系。
本文中的一些英文简称为以LTE系统为例对本发明实施例进行的描述，其可能随着网络的演进发生变化，具体演进可以参考相应标准中的描述。
接下来请参考图2，图2为本发明实施例提供的一种数据传输装置的可能的结构图。该装置例如为上述第一网络侧设备、第二网络侧设备、终端设备的一种可能的结构图。如图2所示，该装置包括：处理器10、发送器20、接收器30、存储器40和天线50。存储器40、发送器20和接收器30和处理器10可以通过总线进行连接。当然，在实际运用中，存储器40、发送器20和接收器30和处理器10之间可以不是总线结构，而可以是其它结构，例如星型结构，本申请不作具体限定。
可选的，处理器10具体可以是通用的中央处理器或特定应用集成电路(英文：Application Specific Integrated Circuit，简称：ASIC)，可以是一个或多个用于控制程序执行的集成电路，可以是使用现场可编程门阵列(英文：Field Programmable Gate Array，简称：FPGA)开发的硬件电路，可以是基带处理器。
可选的，处理器10可以包括至少一个处理核心。
可选的，存储器40可以包括只读存储器(英文：Read Only Memory，简称：ROM)、随机存取存储器(英文：Random Access Memory，简称：RAM)和磁盘存储器中的一种或多种。存储器40用于存储处理器10运行时所需的数据和/或指令。存储器40的数量可以为一个或多个。存储器40中的部分可以与处理器集成设置，也可以独立于处理器设置。
可选的，每个天线端口可以发送一种解调参考信号(英文：Demodulation Reference Signal，简称：DM-RS)，用于终端设备进行PDSCH的信道估计和PDSCH数据解调。以LTE为例，LTE中支持8个天线端口，这8个天线端口可以分为两组，端口{7、8、11、13}为一组，端口{9、10、12、14}为另一组。两组天线端口通过频分进行区分，每一组内四个天线端口通过码分进行区分。
可选的，发送器20和接收器30在物理上可以相互独立也可以集成在一起。发送器20可以通过天线50进行数据发送。接收器30可以通过天线50进行数据接收。
接下来请参考如图3所示，为本发明实施例中第一网络侧设备侧的数据传输方法的流程图。如图3所示，该方法包括：
步骤301，第一网络侧设备确定第一信息。
步骤302，第一网络侧设备根据所述第一信息确定解调参考信号组。
步骤303，第一网络侧设备向终端发送所述解调参考信号组中的一个或多个解调参考信号。
在本发明实施例中，解调参考信号组为预先定义的，将解调参考信号划分为多个分组。比如，可以将解调参考信号的天线端口所占的资源按照时分，频分、码分中至少一种方式进行分组，通过将解调参考信号进行分组，可以使得不同基站采用不同的解调参考信号时可以保证彼此正交。
举例来说，在LTE系统中，LTE支持8个天线端口，这8个天线端口可以分为两组，端口{7、8、11、13}为一组，端口{9、10、12、14}为另一组，比如，端口7、端口8采用相同的资源单元(英文：Resource Element，RE)，端口9和端口10采用相同的RE。换言之，可以依据天线端口，把解调参考信号分为两组，在端口{7、8、11、13}上发送的解调参考信号为一组，在端口{9、10、12、14}上发送的解调参考信号为一组。
针对5G系统，如果同一天线端口上可以有不同的导频图案，则也可以按照导频图案进行分组。比如，导频图案1、2对应的解调参考信号为一组，导频图案3、4对应的解调参考信号为一组。导频图案为导频序列在时域和/或频域资源上的映射方式。
还可以依据解调参考信号序列进行分组，比如加扰ID1、2对应的解调参考信号为一组，加扰ID3、4对应的解调参考信号为一组。
在本发明实施例中，每个解调参考信号组至少包括一个信息对应的解调参考信号，该信息可以为天线端口、导频图案、加扰信息中的至少一个。换言之，每个解调参考信号组中包括一个或多个解调参考信号。
在将解调参考信号预定义分组之后，可以通过指示信息的方式与第二网络侧设备和/或终端进行交互。第一网络侧设备向第二网络侧设备和/或终端发送指示信息，可以指示出第一网络侧设备使用的解调参考信号组和/或第二网络侧设备使用的解调参考信号组，指示出第一网络侧设备使用的解调参考信号组时，第二网络侧设备同样知道自身可以使用的解调参考信号组，第二网络侧设备使用的解调参考信号组与第一网络侧设备使用的解调参考 信号组不同，才能保证实现正交。
当然，上述解调参考信号组可以不通过指示信息的方式指示，而是通过预定义的方式。
在本发明实施例中，第一网络侧设备的第一信息可以为第一网络侧设备的小区的小区标识或第一网络侧设备使用的码字，该第一网络侧设备的第一信息与第二网络侧设备的第一信息不同，第二网络侧设备的第一信息可以为第二网络侧设备的小区的小区标识或第二网络侧设备使用的码字。比如，第一网络侧设备使用码字1，则第二网络侧设备使用码字2。
可选地，需要先确定小区标识与解调参考信号组的对应关系。依据小区的小区标识的大小确定具体使用的解调参考信号组，比如，小区标识小的小区采用解调参考信号组1，小区标识大的小区采用解调参考信号组2。当然也可以是小区标识大的小区采用解调参考信号组1，小区标识小的小区采用解调参考信号组2，在具体应用时具体分配。也可以采用其他的规则的对应关系，在此不做限定。
当存在多个解调参考信号组时，比如在解调参考信号组为4组的情况下，小区标识小的小区可以采用解调参考信号组1、2，小区标识大的小区采用解调参考信号组3、4。或者小区标识小的小区采用解调参考信号组1、3，小区标识大的小区采用解调参考信号组2、4。具体的解调参考信号组数，以及也可以采用其他的规则的对应关系，在此不做限定。
当小区的个数有多个(小于等于解调参考信号组的数量)时，可以每个小区采用不同的解调参考信号组。比如，小区的个数为4个，解调参考信号组的个数为4个，可以按照顺序一一对应，具体如表1所示。表中的数值仅是举例而言，其他的数值和排序也适用，在此不做限定。
表1
小区标识排序 解调参考信号组的编号
ID index1 1
ID index2 2
ID index3 3
ID index4 4
如表1所示，参与联合传输的小区的小区标识为67、234、34、6，则将小区标识从小到大排序为：ID索引(index)1＝小区(cell)ID6、ID index2＝cell ID34、ID index3＝cell ID67、ID index4＝cell ID234。或者是按照从大到小排序为：ID index1＝cell ID234、ID index2＝cell ID67、ID index3＝cell ID34、ID index4＝cell ID6。
当最多只有一个协作小区与服务小区协作传输时，其它协作的小区可以采用相同或不同的解调参考信号组，比如服务小区为ID index1的情况下，小区标识与解调参考信号组的对应关系如表2所示。表中的数值仅是举例而言，其他的数值和排序也适用，在此不做限定。
表2
小区标识排序 解调参考信号组的编号
ID index1 1,2
ID index2 3,4
ID index3 3,4
ID index4 3,4
上述小区标识与解调参考信号组的对应关系可以是预定义的，也可以是协作的网络侧设备间交互通知的，使得协作的所有网络侧设备都知道该对应关系。
第一网络侧设备在确定了自身的小区的小区标识之后，可以根据小区标识确定该小区标识对应的解调参考信号组。比如，第一网络侧设备的小区的小区标识为34，对应表1中的ID index2，在上述表1中可以得知其对应的解调参考信号组的编号为3,4。
在上述第一网络侧设备的第一信息为第一网络侧设备使用的码字时，第一网络侧设备依据码字与解调参考信号组的对应关系，可以确定出第一网络侧设备使用的码字对应的解调参考信号组。
上述码字与解调参考信号组的对应关系可以为预定义的或者通过协作的网络侧设备之间交互的。该码字与解调参考信号组的对应关系可以通过下述方式之一或任意组合表示。
方式一、码字与天线端口集合的对应关系。
比如，当解调参考信号天线端口可以为7,8,9,10,11,12,13,14时，可以预定义为码字1可以使用的天线端口集合为{7、8、11、13}，码字2可以使用的天线端口集合为{9、10、12、14}或者码字1可以使用的天线端口集合为{9、10、12、14}，码字2可以使用的天线端口集合为{7、8、11、13}或者码字1可以使用的天线端口集合为{7、8}，码字2可以使用的天线端口集合为{9、10}，码字3可以使用的天线端口集合为{11,13}，码字4可以使用的天线端口集合为{12,14}。比如当解调参考信号天线端口可以为7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22时，码字1可以使用的天线端口集合为{7、8、11、13}，码字2可以使用的天线端口集合为{9、10、12、14}，码字3可以使用的天线端口集合为{15、16、17、18}，码字4可以使用的天线端口集合为{19、20、21、22}或者码字1可以使用的天线端口集合为{7、8、11、13}，码字2可以使用的天线端口集合为{9、10、12、14}，码字3可以使用的天线端口集合为{15、16、19、20}，码字4可以使用的天线端口集合为{17、18、21、22}。在此仅是举例，具体的解调参考信号的天线端口可以有其他数值，在此不做限定。具体的码字与解调参考信号天线端口集合的对应关系也可以采用其他方式，在此不做限定。
方式二、码字与解调参考信号组中解调参考信号的导频图案或时频资源的对应关系。
当解调参考信号可以有多种导频图案或时频资源设计时，可以将码字与解调参考信号的导频图案或时频资源建立对应关系。比如以CSI-RS的导频图案为例，针对8天线正常子帧而言有8种导频图案，则码字1可以采用的导频图案为第1至4种，码字2可以采用的导频图案为第5至8种。或者码字1可用的导频图案为第1、3、5、7种，码字2可以采用的导频图案为第2、4、6、8种。如下以CSI-RS的图案为例，如表3所示，(k′,l′)表示一个资源单元组合，用于指示时域上两个连续的资源单元(RE)，k’为资源单元组合中第一个RE和第二个RE的子载波编号，l’为资源单元组合中第一个RE的符号编号，第二个RE的符号编号为l’+1.n′ s＝n smod2，其中n s为时隙编号。
表3
Figure PCTCN2018071659-appb-000001
导频图案为CSI-RS配置0的情况下，不同天线端口下的CSI-RS的映射如图4所示。
在此仅是举例，具体的解调参考信号的导频图案的个数可以有其他数值。具体的解调参考信号的导频图案可以有其他的映射。而码字与解调参考信号的导频图案的对应关系也可以有其他的方式，在此不做限定。
方式三、码字与解调参考信号组中解调参考信号的解调参考信号序列的对应关系。
比如，解调参考信号序列有多种，假设有8种，则码字1可以采用的解调参考信号序列为第1、2、3、4个，码字2可以采用的解调参考信号序列为第5、6、7、8个。或者码字1可以采用的解调参考信号序列为第1、3、5、7个，码字2可以采用的解调参考信号序列为第2、4、6、8个。在此仅是举例，具体的解调参考信号的序列的个数可以有其他数值。而码字与解调参考信号序列的对应关系也可以有其他的方式，在此不做限定。
在确定了码字与解调参考信号组的对应关系之后，第一网络侧设备依据该码字与解调参考信号组的对应关系，确定第一网络侧设备使用的码字对应的解调参考信号组。
具体的，码字与解调参考信号组的对应关系为码字与天线端口集合的对应关系时，第一网络侧设备根据该码字与天线端口集合的对应关系，确定第一网络侧设备使用的码字的对应解调参考信号组。该天线端口集合为解调参考信号组中包括的解调参考信号的天线端口。
比如，第一网络侧设备使用码字1，通过码字与天线端口集合的对应关系，可以确定 码字1对应的解调参考信号组的天线端口集合为{7、8、11、13}。相应的，第二网络侧设备使用码字2，该码字2对应的解调参考信号组的天线端口集合为{9、10、12、14}。网络侧设备在传输码字时，第一网络侧设备可以默认传输码字1，第二网络侧设备默认传输码字2。终端可以接收多于2个码字时，码字1、2对应的解调参考信号组的天线端口集合为{7、8、11、13}，码字3、4对应解调参考信号组的天线端口集合为{9、10、12、14}，而第一网络侧设备默认传输码字1、2中至少一个，第二网络侧设备默认传输码字3、4中至少一个。
在码字与解调参考信号组的对应关系为码字与解调参考信号组中解调参考信号的导频图案或时频资源的对应关系时，第一网络侧设备根据该码字与解调参考信号组中解调参考信号的导频图案或时频资源的对应关系，确定第一网络侧设备使用的码字的对应解调参考信号组。
以导频图案为例，第一网络侧设备使用码字1时，该码字2对应的解调参考信号组中解调参考信号的导频图案为第1至4种，第二网络侧设备使用码字2，该码字2对应的解调参考信号组中解调参考信号的导频图案为第5至8种。第一网络侧设备可以默认传输码字1，第二网络侧设备默认传输码字2。终端可以接收多于2个码字时，码字1、2对应的解调参考信号组中解调参考信号的导频图案为第1至4种，码字3、4对应的解调参考信号组中解调参考信号的导频图案为第5至8种，而第一网络侧设备默认传输码字1、2中至少一个，第二网络侧设备默认传输码字3、4中至少一个。
在码字与解调参考信号组的对应关系为码字与解调参考信号组中解调参考信号的解调参考信号序列的对应关系时，第一网络侧设备根据该码字与解调参考信号组中解调参考信号的解调参考信号序列的对应关系，确定第一网络侧设备使用的码字的对应解调参考信号组。
比如，第一网络侧设备使用码字1时，该码字2对应的解调参考信号组中解调参考信号的解调参考信号序列为第1、2、3、4个，第二网络侧设备使用码字2，该码字2对应的解调参考信号组中解调参考信号的解调参考信号序列为第5、6、7、8个。第一网络侧设备可以默认传输码字1，第二网络侧设备默认传输码字2。终端可以接收多于2个码字时，码字1、2对应的解调参考信号组中解调参考信号的解调参考信号序列为第1、2、3、4个，码字3、4对应的解调参考信号组中解调参考信号的解调参考信号序列为第5、6、7、8个，而第一网络侧设备默认传输码字1、2中至少一个，第二网络侧设备默认传输码字3、4中至少一个。
在上述第一网络侧设备的第一信息为第一网络侧设备使用的传输层信息时，第一网络侧设备依据传输层信息与解调参考信号组的对应关系，可以确定出第一网络侧设备使用的传输层信息对应的解调参考信号组。
上述传输层信息与解调参考信号组的对应关系可以为预定义的或者通过协作的网络侧设备之间交互的。该传输层信息与解调参考信号组的对应关系可以通过下述方式之一或任意组合表示。
方式一、传输层信息与天线端口集合的对应关系。
传输层信息可以是具体的层号信息，比如第一层数据，第二层数据，第三层数据等，也可以是具体的层数信息，比如一层，两层，三层，前两层，后两层，前一层，后一层等。
比如，当解调参考信号天线端口可以为7,8,9,10,11,12,13,14时，可以预定义为传输层 信息与天线端口集合的对应关系，具体的可以为第一层数据使用的天线端口集合为{7、8}，第二层数据可以使用的天线端口集合为{9、10}；或者第一层数据可以使用的天线端口集合为{9、10、12、14}，第二层数据可以使用的天线端口集合为{7、8、11、13}；或者第一层数据可以使用的天线端口集合为{7、8}，第二层数据可以使用的天线端口集合为{9、10}，第三层数据可以使用的天线端口集合为{11,13}，第四层数据可以使用的天线端口集合为{12,14}。比如当解调参考信号天线端口可以为7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22时，第一层数据可以使用的天线端口集合为{7、8、11、13}，第二层数据可以使用的天线端口集合为{9、10、12、14}，第三层数据可以使用的天线端口集合为{15、16、17、18}，第四层数据可以使用的天线端口集合为{19、20、21、22}；或者第一层数据可以使用的天线端口集合为{7、8、11、13}，第二层数据可以使用的天线端口集合为{9、10、12、14}，第三层数据可以使用的天线端口集合为{15、16、19、20}，第四层数据可以使用的天线端口集合为{17、18、21、22}。
比如，当解调参考信号天线端口可以为7,8,9,10,11,12,13,14时，可以预定义为传输层信息与天线端口集合的对应关系，具体的可以为传输层信息为一层时可以使用的天线端口集合为{7、8}，传输层信息为两层时可以使用的天线端口集合为{9、10}；或者传输层信息为一层时可以使用的天线端口集合为{7、8、11、13}，传输层信息为两层时可以使用的天线端口集合为{9、10、12、14}；或者传输层信息为一层时可以使用的天线端口集合为{7、8}，传输层信息为两层时可以使用的天线端口集合为{9、10}，传输层信息为三层时可以使用的天线端口集合为{7、8、11、13}，传输层信息为四层时可以使用的天线端口集合为{9、10、12、14}；或者传输层信息为前两层时可以使用的天线端口集合为{7、8、11、13}，传输层信息为后两层时可以使用的天线端口集合为{9、10、12、14}。比如当解调参考信号天线端口可以为7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22时，传输层信息为一层时可以使用的天线端口集合为{7、8、11、13}，传输层信息为两层时可以使用的天线端口集合为{9、10、12、14}；或者传输层信息为一层时可以使用的天线端口集合为{7、8、11、13}，传输层信息为两层时可以使用的天线端口集合为{9、10、12、14}，传输层信息为三层时可以使用的天线端口集合为{15、16、19、20}，传输层信息为四层时可以使用的天线端口集合为{17、18、21、22}；或者传输层信息为前两层时可以使用的天线端口集合为{7、8、11、13、15、16、19、20}，传输层信息为后两层时可以使用的天线端口集合为{9、10、12、14、17、19、21、22}。
在此仅是举例，具体的解调参考信号的天线端口可以有其他数值，在此不做限定。具体的传输层信息与解调参考信号的天线端口集合的对应关系也可以采用其他方式，在此不做限定。
方式二、传输层信息与解调参考信号组中解调参考信号的导频图案或时频资源的对应关系。
传输层信息可以是具体的层号信息，比如第一层数据，第二层数据，第三层数据等，也可以是具体的层数信息，比如一层，两层，三层，前两层，后两层，前一层，后一层等。
当解调参考信号可以有多种导频图案或时频资源设计时，可以将传输层信息与解调参考信号的导频图案或时频资源建立对应关系。比如以CSI-RS的导频图案为例，针对8天线正常子帧而言有8种导频图案，则第一层数据可以采用的导频图案为第1至4种，第二层数据可以采用的导频图案为第5至8种。或者第一层数据可用的导频图案为第1、3、5、 7种，第二层数据可以采用的导频图案为第2、4、6、8种。或者传输层信息为前两层时可用的导频图案为第1、3、5、7种，传输层信息为后两层时可用的导频图案为第2、4、6、8种。如下以CSI-RS的图案为例，如上述表3所示，(k′,l′)表示一个资源单元组合，用于指示时域上两个连续的资源单元(RE)，k’为资源单元组合中第一个RE和第二个RE的子载波编号，l’为资源单元组合中第一个RE的符号编号，第二个RE的符号编号为l’+1.n′ s＝n smod2,其中n s为时隙编号。
导频图案为CSI-RS配置0的情况下，不同天线端口下的CSI-RS的映射如图4所示。
在此仅是举例，具体的解调参考信号的导频图案的个数可以有其他数值。具体的解调参考信号的导频图案可以有其他的映射。而传输层信息与解调参考信号的导频图案的对应关系也可以有其他的方式，在此不做限定。
方式三、传输层信息与解调参考信号组中解调参考信号的解调参考信号序列的对应关系。
传输层信息可以是具体的层号信息，比如第一层数据，第二层数据，第三层数据等，也可以是具体的层数信息，比如一层，两层，三层，前两层，后两层，前一层，后一层等。
比如，解调参考信号序列有多种，假设有8种，则第一层数据可以采用的解调参考信号序列为第1、2、3、4个，第二层数据可以采用的解调参考信号序列为第5、6、7、8个。或者第一层数据可以采用的解调参考信号序列为第1、3、5、7个，第二层数据可以采用的解调参考信号序列为第2、4、6、8个。或者当传输层信息为前两层时可以采用的解调参考信号序列为第1、3、5、7个，当传输层信息为后两层时可以采用的解调参考信号序列为第2、4、6、8个。在此仅是举例，具体的解调参考信号的序列的个数可以有其他数值。而传输层信息与解调参考信号序列的对应关系也可以有其他的方式，在此不做限定。
在确定了传输层信息与解调参考信号组的对应关系之后，第一网络侧设备依据该传输层信息与解调参考信号组的对应关系，确定第一网络侧设备使用的传输层对应的解调参考信号组。
具体的，传输层信息与解调参考信号组的对应关系为传输层与天线端口集合的对应关系时，第一网络侧设备根据该传输层与天线端口集合的对应关系，确定第一网络侧设备使用的传输层的对应解调参考信号组。该天线端口集合为解调参考信号组中包括的解调参考信号的天线端口。
比如，第一网络侧设备使用传输层信息为第一层数据，通过传输层信息与天线端口集合的对应关系，可以确定第一层数据对应的解调参考信号组的天线端口集合为{7、8、11、13}。相应的，第二网络侧设备使用传输层信息为第二层数据，通过传输层信息与天线端口集合的对应关系，可以确定第二层数据对应的解调参考信号组的天线端口集合为{9、10、12、14}。网络侧设备在传输数据时，第一网络侧设备可以默认传输第一层数据，第二网络侧设备默认传输第二层数据。终端可以接收多于2层数据时，传输层信息为前两层时对应的解调参考信号组的天线端口集合为{7、8、11、13}，传输层信息为后两层时对应解调参考信号组的天线端口集合为{9、10、12、14}，而第一网络侧设备默认传输前两层数据中至少一层，第二网络侧设备默认传输后两层数据中至少一个。具体的默认的方式和规则，在此不做限定。
在传输层信息与解调参考信号组的对应关系为传输层信息与解调参考信号组中解调参考信号的导频图案或时频资源的对应关系时，第一网络侧设备根据该传输层信息与解调 参考信号组中解调参考信号的导频图案或时频资源的对应关系，确定第一网络侧设备使用的传输层的对应解调参考信号组。
以导频图案为例，第一网络侧设备使用的传输层信息第一层数据时，该传输层对应的解调参考信号组中解调参考信号的导频图案为第1至4种，第二网络侧设备使用的传输层信息为第二层数据时，该传输层对应的解调参考信号组中解调参考信号的导频图案为第5至8种。第一网络侧设备可以默认传输第一层数据，第二网络侧设备默认传输第二层数据。终端可以接收多于两层数据时，当传输层信息为前两层时对应的解调参考信号组中解调参考信号的导频图案为第1至4种，当传输层信息为后两层时对应的解调参考信号组中解调参考信号的导频图案为第5至8种，而第一网络侧设备默认传输前两层数据中至少一个，第二网络侧设备默认传输后两层数据中至少一个。具体的默认的方式和规则，在此不做限定。
在传输层信息与解调参考信号组的对应关系为传输层信息与解调参考信号组中解调参考信号的解调参考信号序列的对应关系时，第一网络侧设备根据该传输层信息与解调参考信号组中解调参考信号的解调参考信号序列的对应关系，确定第一网络侧设备使用的传输层的对应解调参考信号组。
比如，第一网络侧设备使用的传输层信息为第一层数据时，该传输层信息对应的解调参考信号组中解调参考信号的解调参考信号序列为第1、2、3、4个，第二网络侧设备使用的传输层信息为第二层数据时，该传输层信息对应的解调参考信号组中解调参考信号的解调参考信号序列为第5、6、7、8个。第一网络侧设备可以默认传输第一层数据，第二网络侧设备默认传输第二层数据。终端可以接收多于2层数据时，当传输层信息为前两层时对应的解调参考信号组中解调参考信号的解调参考信号序列为第1、2、3、4个，当传输层信息为后两层时对应的解调参考信号组中解调参考信号的解调参考信号序列为第5、6、7、8个，而第一网络侧设备默认传输前两层中至少一个，第二网络侧设备默认传输后两层中至少一个。具体的默认的方式和规则，在此不做限定。
第一网络侧设备在确定出第一信息对应的解调参考信号组之后，向终端发送该解调参考信号组中的一个或多个解调参考信号，从而实现不同的网络侧设备采用正交的解调参考信号。
可选地，第一网络侧设备在确定了第一信息之后，也就是说，第一网络侧设备在确定了自身的小区的小区标识或自身使用的码字或者传输层信息之后，第一网络侧设备将该第一网络侧设备的第一信息发送给第二网络侧设备，以使第二网络侧设备确定第二网络侧设备使用的解调参考信号组，使得第二网络侧设备使用的解调参考信号组与第二网络侧设备的不同，实现发送的的解调参考信号的正交，保证了终端正常解调，降低信令开销。或者也可以采用预定义的方式，此时第一网络侧设备不需要向第二网络侧设备发送第一网络侧设备的第一信息，第一网络侧设备和第二网络侧设备根据预定义的规则，可以确定各自的小区标识或者码字或者传输层信息，而且保证各自的解调参考信号正交，提高数据解调性能。
对于第二网络侧设备而言，执行的数据传输的方法包括以下步骤：第二网络侧设备接收第一网络侧设备发送的第一网络侧设备的第一信息，所述第一网络侧设备的第一信息所述第二网络侧设备的第一信息不同；所述第二网络侧设备根据所述第一网络侧设备的第一信息确定第二网络侧设备的第一信息；所述第二网络侧设备根据所述第二网络侧设备的第 一信息确定解调参考信号组；所述第二网络侧设备向终端发送所述解调参考信号组中的一个或多个解调参考信号。
第二网络侧设备根据第一网络侧设备的第一信息确定第二网络侧设备的第一信息时，保证第一网络侧设备的第一信息与第二网络侧设备的第一信息不同即可，比如，第一网络侧设备的第一信息为码字1时，第二网络侧设备的第一信息为码字2。
而第二网络侧设备具体的根据第二网络侧设备的第一信息确定解调参考信号组的方式与第一网络侧设备根据第一网络侧设备的第一信息确定解调参考信号组的方式相同，已在前述详细描述过，所以在此不再赘述。
对于终端设备而言，其数据传输方法包括以下步骤：终端接收第一网络侧设备发送的第一网络侧设备的第一信息以及第二网络侧设备发送的第二网络侧设备的第一信息；所述第一网络侧设备的第一信息与第二网络侧设备的第一信息不同；所述终端根据所述第一网络侧设备的第一信息确定所述第一网络侧设备使用的解调参考信号组，以及根据所述第二网络侧设备的第一信息确定所述第二网络侧设备使用的解调参考信号组；所述解调参考信号组包括一个或多个解调参考信号；所述终端根据所述第一网络侧设备使用的解调参考信号组中的一个或多个解调参考信号解调从所述第一网络侧设备接收到的第一部分数据，以及根据所述第二网络侧设备使用的解调参考信号组中的一个或多个解调参考信号解调从所述第二网络侧设备接收到的第二部分数据。
终端具体的根据第一网络侧设备的第一信息确定第一网络侧设备使用的解调参考信号组以及根据第二网络侧设备的第一信息确定第二网络侧设备使用的解调参考信号组的方式与第一网络侧设备根据第一网络侧设备的第一信息确定解调参考信号组的方式相同，已在前述详细描述过，所以在此不再赘述。
所述终端获取的第一网络侧设备的第一信息可以是第一网络侧设备发送的也可以是第二网络侧设备发送的，或者其他网络侧设备发送的，在此不作限定。同理，所述终端获取的第二网络侧设备的第一信息可以是第一网络侧设备发送的也可以是第二网络侧设备发送的,或者其他网络侧设备发送的，在此不作限定。
另一实施例中，第一网络侧设备和/或第二网络侧设备也可以不向终端发送第一信息，既可以直接发送解调参考信号组的信息，具体的实例方式，在此不作限定。
根据解调参考信号进行数据解调，为本领域技术人员所熟知的内容，所以在此不再赘述。
在本发明实施例中，为了支持协作中网络侧设备的独立调度，不同的网络侧设备需要使用正交的解调参考信号组。一种可能的方式是通过时域和/或频域资源将解调采纳可信号进行分组。比如，根据天线端口进行分组，具体的举例为第一解调参考信号组包括天线端口7，8，11，13，第二解调参考信号组包括天线端口9，10，12，14。在这种情况下，网络侧设备之间不需要实时的交互信息，只需要交互长期信息(即比较稳定而不是实时变化的信息)即可。另外，不同的网络侧设备可以通过预定义或者交互的方式确定各自使用的解调参考信号组。终端侧也可以通过预定义或者网络侧设备通知的方式确定当前使用的解调参考信号组。另一种方式是隐式的指示解调参考信号组的信息，比如不同的码字可以对应不同的解调参考信号组，不同的网络侧设备可以根据预定义或者交互的方式确定不同码字所使用的解调参考信号组。终端侧也可以通过预定义或者网络侧设备通知的方式确定当前使用的解调参考信号组。
有上述描述可以看出，第一网络侧设备根据第一信息确定采用的解调参考信号组，使得第一网络侧设备采用的解调参考信号组与第二网络侧设备采用的解调参考信号组不同，可以保证第一网络侧设备和第二网络侧设备采用正交的解调参考信号，避免出现因不同的基站采用了解调参考信号无法正交引起的终端解调能力差的问题。
在将解调参考信号分好组后，各网络侧设备就不用实时交互，按照分组发送数据即可。如果没有对解调参考信号进行分组的话，各网络侧设备要实时交互当前用的DMRS是怎么样的，以避免发生冲突。解调参考信号的分组情况可以各网络侧设备间协商通知或者预定义分配，这个可以是长期的，也可以是分好后变化不大，因此可以避免交互时延导致的性能损失。
基于同一发明构思，本发明实施例还提供一种数据传输装置(如图2所示)，该装置用于实现前述方法中的任意一种方法。
当该装置为网络侧设备，例如前述第一网络侧设备时，处理器10，用于确定第一信息，所述第一信息与第二网络侧设备所使用的第一信息不同；以及根据所述第一信息确定解调参考信号组；所述解调参考信号组包括一个或多个解调参考信号；发送器20，用于向终端发送所述解调参考信号组中的一个或多个解调参考信号。
可选地，所述第一信息为所述网络侧设备的小区的小区标识；所述处理器10具体用于：确定所述小区的小区标识对应的所述解调参考信号组。
可选地，所述第一信息为网络侧设备使用的码字；所述处理器10具体用于：确定所述码字对应的解调参考信号组。
可选地，所述处理器10具体用于：根据码字与天线端口集合的对应关系，确定所述码字对应的解调参考信号组，所述天线端口集合中的天线端口为所述解调参考信号组中包括的解调参考信号的天线端口；和/或根据码字与解调参考信号组中解调参考信号的导频图案或时频资源的对应关系，确定所述码字对应的解调参考信号组；和/或根据码字与解调参考信号组中解调参考信号的解调参考信号序列的对应关系，确定所述码字对应的解调参考信号组。
可选地，所述第一信息为网络侧设备使用的传输层；所述处理器10具体用于：确定所述传输层对应的解调参考信号组。
可选地，所述处理器10具体用于：根据传输层信息与天线端口集合的对应关系，确定所述传输层对应的解调参考信号组，所述天线端口集合中的天线端口为所述解调参考信号组中包括的解调参考信号的天线端口；和/或根据传输层信息与解调参考信号组中解调参考信号的导频图案或时频资源的对应关系，确定所述传输层对应的解调参考信号组；和/或根据传输层信息与解调参考信号组中解调参考信号的解调参考信号序列的对应关系，确定所述传输层对应的解调参考信号组。
可选地，所述发送器20还用于：向所述第二网络侧设备发送第一信息，以使所述第二网络侧设备确定所述第二网络侧设备使用的解调参考信号组。
可选地，所述发送器20还用于：向所述第二网络侧设备发送指示信息，所述指示信息用于指示所述第一网络侧设备使用的解调参考信号组和/或用于指示所述第二网络侧设备使用的解调参考信号组。
可选地，所述发送器20还用于：向所述终端发送所述第一网络侧设备的第一信息，以使所述终端确定所述第一网络侧设备使用的解调参考信号组。
当该装置为另一种网络侧设备，例如前述的第二网络侧设备时，接收器30，用于接收第一网络侧设备发送的第一网络侧设备的第一信息，所述第一网络侧设备的第一信息所述网络侧设备的第一信息不同；处理器10，用于第一网络侧设备的第一信息确定网络侧设备的第一信息；以及根据所述网络侧设备的第一信息确定解调参考信号组；发送器20，用于向终端发送所述解调参考信号组中的一个或多个解调参考信号。
可选地，所述接收器30还用于：接收所述第一网络侧设备发送的指示信息，所述指示信息用于指示所述第一网络侧设备使用的解调参考信号组和/或用于指示所述网络侧设备使用的解调参考信号组。
可选地，所述网络侧设备的第一信息为所述网络侧设备的小区的小区标识；所述处理器10具体用于：确定所述网络侧设备的小区的小区标识对应的解调参考信号组。
可选地，所述网络侧设备的第一信息为网络侧设备使用的码字；所述处理器10具体用于：确定所述码字对应的解调参考信号组。
可选地，所述处理器10具体用于：根据码字与天线端口集合的对应关系，确定所述码字对应的解调参考信号组，所述天线端口集合中的天线端口为所述解调参考信号组中包括的解调参考信号的天线端口；和/或根据码字与解调参考信号组中解调参考信号的导频图案或时频资源的对应关系，确定所述码字对应的解调参考信号组；和/或根据码字与解调参考信号组中解调参考信号的解调参考信号序列的对应关系，确定所述码字对应的解调参考信号组。
可选地，所述网络侧设备的第一信息为网络侧设备使用的传输层；所述处理器10具体用于：确定所述传输层对应的解调参考信号组。
可选地，所述处理器10具体用于：根据传输层信息与天线端口集合的对应关系，确定所述传输层对应的解调参考信号组，所述天线端口集合中的天线端口为所述解调参考信号组中包括的解调参考信号的天线端口；和/或根据传输层信息与解调参考信号组中解调参考信号的导频图案或时频资源的对应关系，确定所述传输层对应的解调参考信号组；和/或根据传输层信息与解调参考信号组中解调参考信号的解调参考信号序列的对应关系，确定所述传输层对应的解调参考信号组。
可选地，所述发送器20还用于：向所述终端发送所述第二网络侧设备的第一信息，以使所述终端确定所述第二网络侧设备使用的解调参考信号组。
当该装置为终端设备时，接收器30，用于接收第一网络侧设备发送的第一网络侧设备的第一信息以及第二网络侧设备发送的第二网络侧设备的第一信息；所述第一网络侧设备的第一信息与第二网络侧设备的第一信息不同；处理器10，用于根据所述第一网络侧设备的第一信息确定所述第一网络侧设备使用的解调参考信号组，以及根据所述第二网络侧设备的第一信息确定所述第二网络侧设备使用的解调参考信号组；所述解调参考信号组包括一个或多个解调参考信号；以及根据所述第一网络侧设备使用的解调参考信号组中的一个或多个解调参考信号解调从所述第一网络侧设备接收到的第一部分数据，以及根据所述第二网络侧设备使用的解调参考信号组中的一个或多个解调参考信号解调从所述第二网络侧设备接收到的第二部分数据。
可选地，所述第一网络侧设备的第一信息为所述第一网络侧设备的小区的小区标识；所述处理器10具体用于：确定所述第一网络侧设备的小区的小区标识对应的所述解调参考信号组。
可选地，所述第一网络侧设备的第一信息为第一网络侧设备使用的码字；所述处理器10具体用于：确定所述第一网络侧设备使用的码字对应的解调参考信号组。
可选地，所述处理器10具体用于：根据码字与天线端口集合的对应关系，确定所述第一网络侧设备使用的码字对应的解调参考信号组，所述天线端口集合中的天线端口为所述解调参考信号组中包括的解调参考信号的天线端口；和/或根据码字与解调参考信号组中解调参考信号的导频图案或时频资源的对应关系，确定所述第一网络侧设备使用的码字对应的解调参考信号组；和/或根据码字与解调参考信号组中解调参考信号的解调参考信号序列的对应关系，确定所述第一网络侧设备使用的码字对应的解调参考信号组。
可选地，所述第一网络侧设备的第一信息为第一网络侧设备使用的传输层信息；所述处理器10具体用于：确定所述第一网络侧设备使用的传输层信息对应的解调参考信号组。
可选地，所述处理器10具体用于：根据传输层信息与天线端口集合的对应关系，确定所述第一网络侧设备使用的传输层信息对应的解调参考信号组，所述天线端口集合中的天线端口为所述解调参考信号组中包括的解调参考信号的天线端口；和/或根据传输层信息与解调参考信号组中解调参考信号的导频图案或时频资源的对应关系，确定所述第一网络侧设备使用的传输层信息对应的解调参考信号组；和/或根据传输层信息与解调参考信号组中解调参考信号的解调参考信号序列的对应关系，确定所述第一网络侧设备使用的传输层信息对应的解调参考信号组。
可选地，所述第二网络侧设备的第一信息为所述第二网络侧设备的小区的小区标识；所述处理器10具体用于：确定所述第二网络侧设备的小区的小区标识对应的解调参考信号组。
可选地，所述第二网络侧设备的第一信息为第二网络侧设备使用的码字；所述处理器10具体用于：确定所述第二网络侧设备使用的码字对应的解调参考信号组。
可选地，所述处理器10具体用于：根据码字与天线端口集合的对应关系，确定所述第二网络侧设备使用的码字对应的解调参考信号组，所述天线端口集合中的天线端口为所述解调参考信号组中包括的解调参考信号的天线端口；和/或根据码字与解调参考信号组中解调参考信号的导频图案或时频资源的对应关系，确定所述第二网络侧设备使用的码字对应的解调参考信号组；和/或根据码字与解调参考信号组中解调参考信号的解调参考信号序列的对应关系，确定所述第二网络侧设备使用的码字对应的解调参考信号组。
可选地，所述第二网络侧设备的第一信息为第二网络侧设备使用的传输层信息；所述处理器10具体用于：确定所述第二网络侧设备使用的传输层信息对应的解调参考信号组。
可选地，所述处理器10具体用于：根据传输层信息与天线端口集合的对应关系，确定所述第二网络侧设备使用的传输层信息对应的解调参考信号组，所述天线端口集合中的天线端口为所述解调参考信号组中包括的解调参考信号的天线端口；和/或根据传输层信息与解调参考信号组中解调参考信号的导频图案或时频资源的对应关系，确定所述第二网络侧设备使用的传输层信息对应的解调参考信号组；和/或根据传输层信息与解调参考信号组中解调参考信号的解调参考信号序列的对应关系，确定所述第二网络侧设备使用的传输层信息对应的解调参考信号组。
可选地，所述接收器30还用于：接收所述第一网络侧设备发送的指示信息，所述指示信息用于指示所述第一网络侧设备使用的解调参考信号组和/或用于指示所述第二网络侧设备使用的解调参考信号组。
基于同一发明构思，本发明实施例还提供一种数据传输装置，该数据传输装置包括用于执行前述方法步骤的功能模块。
前述实施例中的数据传输方法中的各种变化方式和具体实例同样适用于本实施例的数据传输装置以及图2中的装置，通过前述对数据传输方法的详细描述，本领域技术人员可以清楚的知道本实施例中数据传输装置以及图2中的装置的实施方法，所以为了说明书的简洁，在此不再详述。
本领域内的技术人员应明白，本发明实施例可提供为方法、系统、或计算机程序产品。因此，本发明实施例可采用完全硬件实施例、完全软件实施例、或结合软件和硬件方面的实施例的形式。而且，本发明实施例可采用在一个或多个其中包含有计算机可用程序代码的计算机可用存储介质(包括但不限于磁盘存储器、CD-ROM、光学存储器等)上实施的计算机程序产品的形式。
本发明实施例是参照根据本发明实施例的方法、设备(系统)、和计算机程序产品的流程图和/或方框图来描述的。应理解可由计算机程序指令实现流程图和/或方框图中的每一流程和/或方框、以及流程图和/或方框图中的流程和/或方框的结合。可提供这些计算机程序指令到通用计算机、专用计算机、嵌入式处理机或其他可编程数据处理设备的处理器以产生一个机器，使得通过计算机或其他可编程数据处理设备的处理器执行的指令产生用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的装置。
这些计算机程序指令也可存储在能引导计算机或其他可编程数据处理设备以特定方式工作的计算机可读存储器中，使得存储在该计算机可读存储器中的指令产生包括指令装置的制造品，该指令装置实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能。
这些计算机程序指令也可装载到计算机或其他可编程数据处理设备上，使得在计算机或其他可编程设备上执行一系列操作步骤以产生计算机实现的处理，从而在计算机或其他可编程设备上执行的指令提供用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的步骤。
显然，本领域的技术人员可以对本发明实施例进行各种改动和变型而不脱离本申请的精神和范围。这样，倘若本发明实施例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 (35)

  1. 一种数据传输的方法，其特征在于，该方法包括：
    第一网络侧设备确定第一信息，所述第一信息与第二网络侧设备所使用的第一信息不同；
    所述第一网络侧设备根据所述第一信息确定解调参考信号组；所述解调参考信号组包括一个或多个解调参考信号；
    所述第一网络侧设备向终端发送所述解调参考信号组中的一个或多个解调参考信号。
  2. 如权利要求1所述的方法，其特征在于，所述第一信息为所述第一网络侧设备的小区的小区标识；
    所述第一网络侧设备根据所述第一信息确定解调参考信号组，包括：
    所述第一网络侧设备确定所述小区的小区标识对应的所述解调参考信号组。
  3. 如权利要求1所述的方法，其特征在于，所述第一信息为第一网络侧设备使用的码字；
    所述第一网络侧设备根据所述第一信息确定解调参考信号组，包括：
    所述第一网络侧设备确定所述码字对应的解调参考信号组。
  4. 如权利要求3所述的方法，其特征在于，所述第一网络侧设备确定所述码字对应的解调参考信号组，包括：
    所述第一网络侧设备根据码字与天线端口集合的对应关系，确定所述码字对应的解调参考信号组，所述天线端口集合中的天线端口为所述解调参考信号组中包括的解调参考信号的天线端口；和/或
    所述第一网络侧设备根据码字与解调参考信号组中解调参考信号的导频图案或时频资源的对应关系，确定所述码字对应的解调参考信号组；和/或
    所述第一网络侧设备根据码字与解调参考信号组中解调参考信号的解调参考信号序列的对应关系，确定所述码字对应的解调参考信号组。
  5. 如权利要求1所述的方法，其特征在于，所述第一信息为第一网络侧设备使用的传输层信息；
    所述第一网络侧设备根据所述第一信息确定解调参考信号组，包括：
    所述第一网络侧设备确定所述传输层信息对应的解调参考信号组。
  6. 如权利要求5所述的方法，其特征在于，所述第一网络侧设备确定所述传输层信息对应的解调参考信号组，包括：
    所述第一网络侧设备根据传输层信息与天线端口集合的对应关系，确定所述传输层信息对应的解调参考信号组，所述天线端口集合中的天线端口为所述解调参考信号组中包括的解调参考信号的天线端口；和/或
    所述第一网络侧设备根据传输层信息与解调参考信号组中解调参考信号的导频图案或时频资源的对应关系，确定所述传输层信息对应的解调参考信号组；和/或
    所述第一网络侧设备根据传输层信息与解调参考信号组中解调参考信号的解调参考信号序列的对应关系，确定所述传输层信息对应的解调参考信号组。
  7. 如权利要求1至6任一项所述的方法，其特征在于，所述第一网络侧设备确定第 一信息，还包括：
    所述第一网络侧设备向所述第二网络侧设备发送第一信息，以使所述第二网络侧设备确定所述第二网络侧设备使用的解调参考信号组。
  8. 如权利要求1至7任一项所述的方法，其特征在于，所述第一网络侧设备根据所述第一信息确定解调参考信号组，还包括：
    所述第一网络侧设备向所述第二网络侧设备和/或所述终端发送指示信息，所述指示信息用于指示所述第一网络侧设备使用的解调参考信号组和/或用于指示所述第二网络侧设备使用的解调参考信号组。
  9. 如权利要求1至8任一项所述的方法，其特征在于，在所述第一网络侧设备确定第一信息之后，还包括：
    所述第一网络侧设备向所述终端发送所述第一网络侧设备的第一信息，以使所述终端确定所述第一网络侧设备使用的解调参考信号组。
  10. 一种数据传输的方法，其特征在于，该方法包括：
    第二网络侧设备接收第一网络侧设备发送的第一网络侧设备的第一信息，所述第一网络侧设备的第一信息所述第二网络侧设备的第一信息不同；
    所述第二网络侧设备根据所述第一网络侧设备的第一信息确定第二网络侧设备的第一信息；
    所述第二网络侧设备根据所述第二网络侧设备的第一信息确定解调参考信号组；
    所述第二网络侧设备向终端发送所述解调参考信号组中的一个或多个解调参考信号。
  11. 如权利要求10所述的方法，其特征在于，还包括：
    所述第二网络侧设备接收所述第一网络侧设备发送的指示信息，所述指示信息用于指示所述第一网络侧设备使用的解调参考信号组和/或用于指示所述第二网络侧设备使用的解调参考信号组。
  12. 如权利要求10所述的方法，其特征在于，所述第二网络侧设备的第一信息为所述第二网络侧设备的小区的小区标识；
    所述第二网络侧设备根据所述第二网络侧设备的第一信息确定解调参考信号组，包括：
    所述第二网络侧设备确定所述第二网络侧设备的小区的小区标识对应的解调参考信号组。
  13. 如权利要求10所述的方法，其特征在于，所述第二网络侧设备的第一信息为第二网络侧设备使用的码字；
    所述第二网络侧设备根据所述第二网络侧设备的第一信息确定解调参考信号组，包括：
    所述第二网络侧设备确定所述码字对应的解调参考信号组。
  14. 如权利要求13所述的方法，其特征在于，所述第二网络侧设备确定所述码字对应的解调参考信号组，包括：
    所述第二网络侧设备根据码字与天线端口集合的对应关系，确定所述码字对应的解调参考信号组，所述天线端口集合中的天线端口为所述解调参考信号组中包括的解调参考信号的天线端口；和/或
    所述第二网络侧设备根据码字与解调参考信号组中解调参考信号的导频图案或时频资源的对应关系，确定所述码字对应的解调参考信号组；和/或
    所述第二网络侧设备根据码字与解调参考信号组中解调参考信号的解调参考信号序列的对应关系，确定所述码字对应的解调参考信号组。
  15. 如权利要求10所述的方法，其特征在于，所述第二网络侧设备的第一信息为第二网络侧设备使用的传输层信息；
    所述第二网络侧设备根据所述第二网络侧设备的第一信息确定解调参考信号组，包括：
    所述第二网络侧设备确定所述传输层信息对应的解调参考信号组。
  16. 如权利要求15所述的方法，其特征在于，所述第二网络侧设备确定所述传输层信息对应的解调参考信号组，包括：
    所述第二网络侧设备根据传输层信息与天线端口集合的对应关系，确定所述传输层信息对应的解调参考信号组，所述天线端口集合中的天线端口为所述解调参考信号组中包括的解调参考信号的天线端口；和/或
    所述第二网络侧设备根据传输层信息与解调参考信号组中解调参考信号的导频图案或时频资源的对应关系，确定所述传输层信息对应的解调参考信号组；和/或
    所述第二网络侧设备根据传输层信息与解调参考信号组中解调参考信号的解调参考信号序列的对应关系，确定所述传输层信息对应的解调参考信号组。
  17. 如权利要求10至16任一项所述的方法，其特征在于，在所述第二网络侧设备根据所述第一网络侧设备的第一信息确定第二网络侧设备的第一信息之后，还包括：
    所述第二网络侧设备向所述终端发送所述第二网络侧设备的第一信息，以使所述终端确定所述第二网络侧设备使用的解调参考信号组。
  18. 一种数据传输的方法，其特征在于，该方法包括：
    终端接收第一网络侧设备发送的第一网络侧设备的第一信息以及第二网络侧设备发送的第二网络侧设备的第一信息；所述第一网络侧设备的第一信息与第二网络侧设备的第一信息不同；
    所述终端根据所述第一网络侧设备的第一信息确定所述第一网络侧设备使用的解调参考信号组，以及根据所述第二网络侧设备的第一信息确定所述第二网络侧设备使用的解调参考信号组；所述解调参考信号组包括一个或多个解调参考信号；
    所述终端根据所述第一网络侧设备使用的解调参考信号组中的一个或多个解调参考信号解调从所述第一网络侧设备接收到的第一部分数据，以及根据所述第二网络侧设备使用的解调参考信号组中的一个或多个解调参考信号解调从所述第二网络侧设备接收到的第二部分数据。
  19. 如权利要求18所述的方法，其特征在于，所述第一网络侧设备的第一信息为所述第一网络侧设备的小区的小区标识；
    所述终端根据所述第一网络侧设备的第一信息所述第一网络侧设备使用的解调参考信号组，包括：
    所述终端确定所述第一网络侧设备的小区的小区标识对应的所述解调参考信号组。
  20. 如权利要求18所述的方法，其特征在于，所述第一网络侧设备的第一信息为第一网络侧设备使用的码字；
    所述终端根据所述第一网络侧设备的第一信息确定所述第一网络侧设备使用的解调参考信号组，包括：
    所述终端确定所述第一网络侧设备使用的码字对应的解调参考信号组。
  21. 如权利要求20所述的方法，其特征在于，所述终端确定所述第一网络侧设备使用的码字对应的解调参考信号组，包括：
    所述终端根据码字与天线端口集合的对应关系，确定所述第一网络侧设备使用的码字对应的解调参考信号组，所述天线端口集合中的天线端口为所述解调参考信号组中包括的解调参考信号的天线端口；和/或
    所述终端根据码字与解调参考信号组中解调参考信号的导频图案或时频资源的对应关系，确定所述第一网络侧设备使用的码字对应的解调参考信号组；和/或
    所述终端根据码字与解调参考信号组中解调参考信号的解调参考信号序列的对应关系，确定所述第一网络侧设备使用的码字对应的解调参考信号组。
  22. 如权利要求18所述的方法，其特征在于，所述第一网络侧设备的第一信息为第一网络侧设备使用的传输层信息；
    所述终端根据所述第一网络侧设备的第一信息确定所述第一网络侧设备使用的解调参考信号组，包括：
    所述终端确定所述第一网络侧设备使用的传输层信息对应的解调参考信号组。
  23. 如权利要求22所述的方法，其特征在于，所述终端确定所述第一网络侧设备使用的传输层信息对应的解调参考信号组，包括：
    所述终端根据传输层信息与天线端口集合的对应关系，确定所述第一网络侧设备使用的传输层信息对应的解调参考信号组，所述天线端口集合中的天线端口为所述解调参考信号组中包括的解调参考信号的天线端口；和/或
    所述终端根据传输层信息与解调参考信号组中解调参考信号的导频图案或时频资源的对应关系，确定所述第一网络侧设备使用的传输层信息对应的解调参考信号组；和/或
    所述终端根据传输层信息与解调参考信号组中解调参考信号的解调参考信号序列的对应关系，确定所述第一网络侧设备使用的传输层信息对应的解调参考信号组。
  24. 如权利要求18至23任一项所述的方法，其特征在于，所述第二网络侧设备的第一信息为所述第二网络侧设备的小区的小区标识；
    所述终端根据所述第二网络侧设备的第一信息确定所述第二网络侧设备使用的解调参考信号组，包括：
    所述终端确定所述第二网络侧设备的小区的小区标识对应的解调参考信号组。
  25. 如权利要求18至24任一项所述的方法，其特征在于，所述第二网络侧设备的第一信息为第二网络侧设备使用的码字；
    所述终端根据所述第二网络侧设备的第一信息确定所述第二网络侧设备使用的解调参考信号组，包括：
    所述终端确定所述第二网络侧设备使用的码字对应的解调参考信号组。
  26. 如权利要求25所述的方法，其特征在于，所述第二网络侧设备确定所述第二网络侧设备使用的码字对应的解调参考信号组，包括：
    所述终端根据码字与天线端口集合的对应关系，确定所述第二网络侧设备使用的码字对应的解调参考信号组，所述天线端口集合中的天线端口为所述解调参考信号组中包 括的解调参考信号的天线端口；和/或
    所述终端根据码字与解调参考信号组中解调参考信号的导频图案或时频资源的对应关系，确定所述第二网络侧设备使用的码字对应的解调参考信号组；和/或
    所述终端根据码字与解调参考信号组中解调参考信号的解调参考信号序列的对应关系，确定所述第二网络侧设备使用的码字对应的解调参考信号组。
  27. 如权利要求18至26任一项所述的方法，其特征在于，所述第二网络侧设备的第一信息为第二网络侧设备使用的传输层信息；
    所述终端根据所述第二网络侧设备的第一信息确定所述第二网络侧设备使用的解调参考信号组，包括：
    所述终端确定所述第二网络侧设备使用的传输层信息对应的解调参考信号组。
  28. 如权利要求27所述的方法，其特征在于，所述第二网络侧设备确定所述第二网络侧设备使用的传输层信息对应的解调参考信号组，包括：
    所述终端根据传输层信息与天线端口集合的对应关系，确定所述第二网络侧设备使用的传输层信息对应的解调参考信号组，所述天线端口集合中的天线端口为所述解调参考信号组中包括的解调参考信号的天线端口；和/或
    所述终端根据传输层信息与解调参考信号组中解调参考信号的导频图案或时频资源的对应关系，确定所述第二网络侧设备使用的传输层信息对应的解调参考信号组；和/或
    所述终端根据传输层信息与解调参考信号组中解调参考信号的解调参考信号序列的对应关系，确定所述第二网络侧设备使用的传输层信息对应的解调参考信号组。
  29. 如权利要求18至28任一项所述的方法，其特征在于，还包括：
    所述终端接收所述第一网络侧设备发送的指示信息，所述指示信息用于指示所述第一网络侧设备使用的解调参考信号组和/或用于指示所述第二网络侧设备使用的解调参考信号组。
  30. 一种网络侧设备，其特征在于，包括：
    处理器，用于确定第一信息，所述第一信息与第二网络侧设备所使用的第一信息不同；以及根据所述第一信息确定解调参考信号组；所述解调参考信号组包括一个或多个解调参考信号；
    发送器，用于向终端发送所述解调参考信号组中的一个或多个解调参考信号。
  31. 一种网络侧设备，其特征在于，包括：
    接收器，用于接收第一网络侧设备发送的第一网络侧设备的第一信息，所述第一网络侧设备的第一信息所述网络侧设备的第一信息不同；
    处理器，用于根据所述第一网络侧设备的第一信息确定网络侧设备的第一信息；以及根据所述网络侧设备的第一信息确定解调参考信号组；
    发送器，用于向终端发送所述解调参考信号组中的一个或多个解调参考信号。
  32. 一种终端设备，其特征在于，包括：
    接收器，用于接收第一网络侧设备发送的第一网络侧设备的第一信息以及第二网络侧设备发送的第二网络侧设备的第一信息；所述第一网络侧设备的第一信息与第二网络侧设备的第一信息不同；
    处理器，用于根据所述第一网络侧设备的第一信息确定所述第一网络侧设备使用的解调参考信号组，以及根据所述第二网络侧设备的第一信息确定所述第二网络侧设备使 用的解调参考信号组；所述解调参考信号组包括一个或多个解调参考信号；以及根据所述第一网络侧设备使用的解调参考信号组中的一个或多个解调参考信号解调从所述第一网络侧设备接收到的第一部分数据，以及根据所述第二网络侧设备使用的解调参考信号组中的一个或多个解调参考信号解调从所述第二网络侧设备接收到的第二部分数据。
  33. 一种通信装置，其特征在于，用于执行如权利要求1至29中任一项所述的方法。
  34. 一种通信装置，其特征在于，包括处理器和与处理器耦合的存储器，
    处理器，用于执行所述存储器中存储的计算机程序，以使得所述装置执行如权利要求1至29中任一项所述的方法。
  35. 一种可读存储介质，包括程序或指令，当所述程序或指令在计算机上运行时，如权利要求1至29中任意一项所述的方法被执行。
PCT/CN2018/071659 2017-01-06 2018-01-05 一种数据传输的方法、网络侧设备及终端设备 WO2018127158A1 (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201710011419.0A CN108282310B (zh) 2017-01-06 2017-01-06 一种数据传输方法、网络侧设备及终端设备
CN201710011419.0 2017-01-06

Publications (1)

Publication Number Publication Date
WO2018127158A1 true WO2018127158A1 (zh) 2018-07-12

Family

ID=62789229

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2018/071659 WO2018127158A1 (zh) 2017-01-06 2018-01-05 一种数据传输的方法、网络侧设备及终端设备

Country Status (2)

Country Link
CN (1) CN108282310B (zh)
WO (1) WO2018127158A1 (zh)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110958202B (zh) * 2018-09-26 2022-04-01 维沃移动通信有限公司 参考信号加扰方法及设备
CN112398620B (zh) * 2019-08-16 2022-04-12 华为技术有限公司 一种参考信号的指示方法及装置

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102427396A (zh) * 2011-08-15 2012-04-25 中兴通讯股份有限公司 一种小区间上行解调参考信号的信息交互方法和基站
WO2014112748A1 (ko) * 2013-01-18 2014-07-24 엘지전자 주식회사 협력적 전송 환경에서 수신 방법 및 단말
WO2014126519A1 (en) * 2013-02-12 2014-08-21 Telefonaktiebolaget L M Ericsson (Publ) Select dm-rs pattern based on channel characteristics

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102427396A (zh) * 2011-08-15 2012-04-25 中兴通讯股份有限公司 一种小区间上行解调参考信号的信息交互方法和基站
WO2014112748A1 (ko) * 2013-01-18 2014-07-24 엘지전자 주식회사 협력적 전송 환경에서 수신 방법 및 단말
WO2014126519A1 (en) * 2013-02-12 2014-08-21 Telefonaktiebolaget L M Ericsson (Publ) Select dm-rs pattern based on channel characteristics

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
LG ELECTRONICS: "DMRS Design Issues in NR", 3GPP TSG RAN WG1 MEETING #86 R1-166907, 26 August 2016 (2016-08-26), XP051125635 *

Also Published As

Publication number Publication date
CN108282310A (zh) 2018-07-13
CN108282310B (zh) 2020-12-01

Similar Documents

Publication Publication Date Title
US10972171B2 (en) Data transmission method and apparatus
US11025316B2 (en) Method and apparatus used for data transmission
US11101948B2 (en) Data transmission method, terminal, and network device
US11349579B2 (en) Antenna port determining method and terminal side device
US10756861B2 (en) Communication method, and related device and system
US12021795B2 (en) Communication method and network device
WO2018113618A1 (zh) 参考信号的发送和接收方法，接入网设备和终端设备
US10778287B2 (en) Multipoint data transmission method and apparatus
WO2017174034A1 (zh) 一种功率配置方法及设备
CN107294574B (zh) 多传输点数据传输的方法及装置
US20210185671A1 (en) Method for sending control information, method for receiving control information, network device, and terminal device
WO2018127158A1 (zh) 一种数据传输的方法、网络侧设备及终端设备
WO2022205022A1 (zh) 用于传输参考信号的方法和装置
US11581993B2 (en) Reception timing configuration method and communications device
WO2018126894A1 (zh) 一种功率配置方法及相关设备
WO2024148618A1 (zh) 通信方法、终端设备以及网络设备
WO2022237498A1 (zh) 重复传输的确定方法、装置、终端及网络侧设备
WO2022206271A1 (zh) 一种确定资源的方法和装置

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: 18735872

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: 18735872

Country of ref document: EP

Kind code of ref document: A1