CN108282310A - A kind of data transmission method, network side equipment and terminal device - Google Patents

A kind of data transmission method, network side equipment and terminal device Download PDF

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Publication number
CN108282310A
CN108282310A CN201710011419.0A CN201710011419A CN108282310A CN 108282310 A CN108282310 A CN 108282310A CN 201710011419 A CN201710011419 A CN 201710011419A CN 108282310 A CN108282310 A CN 108282310A
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China
Prior art keywords
network side
reference signal
demodulated reference
signal group
information
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CN201710011419.0A
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CN108282310B (en
Inventor
王婷
任海豹
窦圣跃
李元杰
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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Priority to CN201710011419.0A priority Critical patent/CN108282310B/en
Priority to PCT/CN2018/071659 priority patent/WO2018127158A1/en
Publication of CN108282310A publication Critical patent/CN108282310A/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • 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

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

Abstract

Disclosing a kind of data transmission method, network side equipment and terminal device, this method includes：First network side apparatus determines the first information, first network side apparatus determines demodulated reference signal group according to the first information, demodulated reference signal group includes one or more demodulated reference signals, and first network side apparatus sends one or more of demodulated reference signal group demodulated reference signal to terminal.The demodulated reference signal group used is determined according to the first information by first network side apparatus, so that the demodulated reference signal group that first network side apparatus uses is different from the demodulated reference signal group that the second network side equipment uses, can ensure that first network side apparatus and the second network side equipment use orthogonal demodulated reference signal, avoid the occurrence of because different base stations use demodulated reference signal can not it is orthogonal caused by terminal demodulation ability difference problem.

Description

A kind of data transmission method, network side equipment and terminal device
Technical field
The present invention relates to field of communication technology, more particularly to a kind of data transmission method, network side equipment and terminal device.
Background technology
Multiple-input and multiple-output (English：Multiple Input Multiple Output, referred to as：MIMO) technology (also may be used With referred to as multi-antenna technology) space diversity lifting system reliability, spatial reuse lifting system capacity, wave beam forming can be passed through Promote MPS process.Long term evolution (English：Long Term Evolution, referred to as：LTE) the physical layer basic fundamental of system It include MIMO technology.
In the multiaerial system of LTE, in order to distinguish different channels, different logic port (port) is defined, wherein Demodulated reference signal DM-RS (English：Demodulation-Reference Signal), the reference for carrying out data demodulation Signal, such as user class reference signal in existing LTE system can be used as demodulated reference signal, pass through antenna port 5, day One or more of line end mouth 7, antenna port 8 or antenna port 7-14 antenna ports are sent, so these are for sending The antenna port of DM-RS is also known as the ports DM-RS.Likewise, data can also be sent on different antenna ports, such as It is sent in one or more antenna ports such as antenna port 5, antenna port 7, antenna port 8, these are used for the day of transmission data Line end mouth is also known as data port.Receiving terminal can be carried out using the DM-RS sent on antenna port identical with data port Channel estimation and data demodulation.
LTE introduces new transmission mode, i.e. transmission mode 9 in version 10, supports 8 antenna ports, and support more User's MIMO transmission.In order to support 8 antenna transmissions, base station to need in Physical Downlink Control Channel, such as the PDCCH (English in LTE Text：Physical Downlink Control Channel) in instruction user's Physical Downlink Shared Channel (in such as LTE PDSCH, English：Physical Downlink Shared Channel) the corresponding precoding number of plies of data and DM-RS correspond to Antenna end slogan, terminal device by detect PDCCH in corresponding instructions field, can obtain its reception PDSCH data packets Containing how many layer and every layer of corresponding antenna port, terminal device carries out channel estimation by the DM-RS that antenna port is sent, so The data demodulation of PDSCH is carried out afterwards.
LTE is in third generation partner program (English：3rd Generation Partnership Project, referred to as： 3GPP) in version 11, in order to support coordinated multipoint transmission, it is co-located to introduce antenna port standard, and QCL is referred to as in LTE system (English：Quasi Co-Located) concept.The signal sent out from the antenna port of QCL can decline by identical large scale It falls.Large-scale decline may include in delay spread, doppler spread, Doppler frequency shift, average channel gain and average delay One or more, can also be other parameter for characterizing large scale channel characteristics.In order to support terminal device from Serving BS receives downlink data by PDCCH reception Downlink Control Information, from cooperative base station by PDSCH, determines in version 11 Justice a kind of new transmission mode, i.e. transmission mode 10, be introduced primarily into the mapping of Physical Downlink Shared Channel resource element and Accurate co-located instruction is referred to as PQI (English in LTE system：PDSCH RE Mapping and QCL Indicator), it is used for Indicating downlink data are sent from which base station, and corresponding channel large-scale characteristics is consistent with which group antenna port. UE is according to PQI, combining wireless resources control (English：Radio Resource Control, referred to as：RRC) signal deployment PDSCH mapping message elements can learn demodulating the downlink data needs which corresponding wireless channel of group antenna port used Parameter.
Since different base stations is when cooperation is to UE transmission datas, under the scene for having base station interaction time delay, if in real time The DMRS situations of interacting base station, scheduling result meeting become discomfort use because of interaction time delay, for example mismatch authentic data transmission Channel conditions, and then lead to cooperation transmission degradation.If do not interacted, different base station uses random DM-RS, will go out The DM-RS used between existing different base station can not form orthogonal, lead to the energy force difference of UE solution adjusting datas.
Invention content
A kind of data transmission method of offer of the embodiment of the present invention, network side equipment and terminal device, to realize that cooperation passes Defeated lower different base station uses the purpose of orthogonal demodulated reference signal.
In a first aspect, a kind of data transmission method is provided, including：
First network side apparatus determines the first information, the first letter used in the first information and the second network side equipment Breath is different；The first network side apparatus determines demodulated reference signal group according to the first information；The demodulated reference signal Group includes one or more demodulated reference signals；The first network side apparatus is sent to terminal in the demodulated reference signal group One or more demodulated reference signals.
In the scheme of the embodiment of the present invention, first network side apparatus determines the demodulation reference letter used according to the first information Number group so that the demodulated reference signal that the demodulated reference signal group that first network side apparatus uses is used with the second network side equipment Group is different, it is ensured that first network side apparatus and the second network side equipment use orthogonal demodulated reference signal, avoid the occurrence of Because different base stations use demodulated reference signal can not it is orthogonal caused by terminal demodulation ability difference problem.
With reference to first aspect, in the first possible realization method of first aspect, the first information is described the The cell ID of the cell of one network side equipment；The first network side apparatus determines that demodulation reference is believed according to the first information Number group, including：The first network side apparatus determines the corresponding demodulated reference signal group of the cell ID of the cell.
First network side apparatus it is only necessary to know that the cell of itself cell ID, and notify to the second network side equipment, And according to the correspondence of the cell ID of cell and demodulated reference signal group, the demodulated reference signal group oneself used is learnt, It ensure that the difference of the demodulated reference signal group and the second network side equipment of use.
With reference to first aspect, in second of possible realization method of first aspect, the first information is the first net The code word that network side apparatus uses；The first network side apparatus determines demodulated reference signal group according to the first information, including： The first network side apparatus determines the corresponding demodulated reference signal group of the code word.
First network side apparatus it is only necessary to know that itself use code word, and notify to the second network side equipment, you can with So that the second network side equipment needs the code word used, and according to the correspondence of code word and demodulated reference signal group, learn certainly The demodulated reference signal group that oneself uses ensure that the difference of the demodulated reference signal group and the second network side equipment of use.
With reference to first aspect or second of possible realization method of first aspect, the third in first aspect are possible In realization method, the first network side apparatus determines the corresponding demodulated reference signal group of the code word, including：First net Network side apparatus determines the corresponding demodulated reference signal group of the code word, institute according to the correspondence of code word and antenna port set State the antenna port that the antenna port in antenna port set is the demodulated reference signal that the demodulated reference signal group includes； And/or the first network side apparatus is according to the pilot frequency design or time-frequency of demodulated reference signal in code word and demodulated reference signal group The correspondence of resource determines the corresponding demodulated reference signal group of the code word；And/or the first network side apparatus is according to code The correspondence of word and the demodulated reference signal sequence of demodulated reference signal in demodulated reference signal group determines that the code word corresponds to Demodulated reference signal group.
With reference to first aspect, in the 4th kind of possible realization method of first aspect, the first information is the first net The transport layer information that network side apparatus uses；The first network side apparatus determines demodulated reference signal according to the first information Group, including：The first network side apparatus determines the corresponding demodulated reference signal group of the transport layer information.
With reference to first aspect or the 4th kind of possible realization method of first aspect, the 5th kind in first aspect are possible In realization method, the first network side apparatus determines the corresponding demodulated reference signal group of the transport layer information, including：It is described First network side apparatus determines that the transport layer information is corresponding according to the correspondence of transport layer information and antenna port set Demodulated reference signal group, the antenna port in the antenna port set are the demodulation ginseng that the demodulated reference signal group includes Examine the antenna port of signal；And/or the first network side apparatus is demodulated according to transport layer information with demodulated reference signal group The pilot frequency design of reference signal or the correspondence of running time-frequency resource determine the corresponding demodulated reference signal of the transport layer information Group；And/or the first network side apparatus is according to the demodulation of demodulated reference signal in transport layer information and demodulated reference signal group The correspondence of reference signal sequence determines the corresponding demodulated reference signal group of the transport layer information.
With reference to first aspect or the 5th kind of the first possible realization method of first aspect to first aspect possible Any one in realization method, in the 6th kind of possible realization method of first aspect, the first network side apparatus is true Determine the first information, further includes：The first network side apparatus sends the first information to second network side equipment, so that described Second network side equipment determines the demodulated reference signal group that second network side equipment uses.
With reference to first aspect or the 6th kind of the first possible realization method of first aspect to first aspect possible Any one in realization method, in the 7th kind of possible realization method of first aspect, the first network side apparatus root Demodulated reference signal group is determined according to the first information, further includes：The first network side apparatus is set to second network side The standby and/or described terminal sends instruction information, and the instruction information is used to indicate the demodulation that the first network side apparatus uses Reference signal group and/or it is used to indicate the demodulated reference signal group that second network side equipment uses.
With reference to first aspect or the 7th kind of the first possible realization method of first aspect to first aspect possible Any one in realization method, in the 8th kind of possible realization method of first aspect, in the first network side apparatus After determining the first information, further include：The first network side apparatus sends the first network side apparatus to the terminal The first information, so that the terminal determines the demodulated reference signal group that the first network side apparatus uses.
Second aspect provides a kind of method of data transmission, including：
Second network side equipment receives the first information for the first network side apparatus that first network side apparatus is sent, and described the The first information of second network side equipment described in the first information of one network side equipment is different；Second network side equipment according to The first information of the first network side apparatus determines the first information of the second network side equipment；The second network side equipment root Demodulated reference signal group is determined according to second information；Second network side equipment sends the demodulated reference signal to terminal One or more of group demodulated reference signal.
Further include in the first possible realization method of second aspect in conjunction with second aspect：Second network side Equipment receives the instruction information that the first network side apparatus is sent, and the instruction information is used to indicate the first network side and sets For the demodulated reference signal group used and/or it is used to indicate the demodulated reference signal group that second network side equipment uses.
In conjunction with second aspect, in second of possible realization method of second aspect, second network side equipment The first information is the cell ID of the cell of second network side equipment；Second network side equipment is according to second net The first information of network side apparatus determines demodulated reference signal group, including：Second network side equipment determines second network The corresponding demodulated reference signal group of cell ID of the cell of side apparatus.
In conjunction with second aspect, in the third possible realization method of second aspect, second network side equipment The first information is the code word that the second network side equipment uses；Second network side equipment is according to second network side equipment The first information determines demodulated reference signal group, including：Second network side equipment determines the corresponding demodulation reference of the code word Signal group.
Second network side equipment is it is only necessary to know that the code word that first network side apparatus uses, you can oneself needs to adopt to know Code word, so that the second network side equipment can be learnt certainly according to the correspondence of code word and demodulated reference signal group The demodulated reference signal group that oneself uses ensure that the difference of the demodulated reference signal group and first network side apparatus of use.
In conjunction with the possible realization method of the third of second aspect or second aspect, the 4th kind in second aspect is possible In realization method, second network side equipment determines the corresponding demodulated reference signal group of the code word, including：Second net Network side apparatus determines the corresponding demodulated reference signal group of the code word, institute according to the correspondence of code word and antenna port set State the antenna port that the antenna port in antenna port set is the demodulated reference signal that the demodulated reference signal group includes； And/or second network side equipment is according to the pilot frequency design or time-frequency of demodulated reference signal in code word and demodulated reference signal group The correspondence of resource determines the corresponding demodulated reference signal group of the code word；And/or second network side equipment is according to code The correspondence of word and the demodulated reference signal sequence of demodulated reference signal in demodulated reference signal group determines that the code word corresponds to Demodulated reference signal group.
In conjunction with second aspect, in the 5th kind of possible realization method of second aspect, second network side equipment The first information is the transport layer information that the second network side equipment uses；Second network side equipment is according to second network side The first information of equipment determines demodulated reference signal group, including：Second network side equipment determines the transport layer information pair The demodulated reference signal group answered.
In conjunction with the 5th kind of possible realization method of second aspect or second aspect, the 6th kind in second aspect is possible In realization method, second network side equipment determines the corresponding demodulated reference signal group of the transport layer information, including：It is described Second network side equipment determines that the transport layer information is corresponding according to the correspondence of transport layer information and antenna port set Demodulated reference signal group, the antenna port in the antenna port set are the demodulation ginseng that the demodulated reference signal group includes Examine the antenna port of signal；And/or second network side equipment is demodulated according to transport layer information with demodulated reference signal group The pilot frequency design of reference signal or the correspondence of running time-frequency resource determine the corresponding demodulated reference signal of the transport layer information Group；And/or second network side equipment is according to the demodulation of demodulated reference signal in transport layer information and demodulated reference signal group The correspondence of reference signal sequence determines the corresponding demodulated reference signal group of the transport layer information.
The 6th kind in conjunction with the possible realization method of the first of second aspect or second aspect to second aspect is possible Any one in realization method, in the 7th kind of possible realization method of second aspect, in second network side equipment After the first information for determining the second network side equipment according to the first information of the first network side apparatus, further include：It is described Second network side equipment sends the first information of second network side equipment to the terminal, so that described in terminal determination The demodulated reference signal group that second network side equipment uses.
The third aspect provides a kind of method of data transmission, including：
Terminal receives the first information for the first network side apparatus that first network side apparatus is sent and the second network side is set The first information for the second network side equipment that preparation is sent；The first information and the second network side equipment of the first network side apparatus The first information it is different；The terminal determines the first network side apparatus according to the first information of the first network side apparatus The demodulated reference signal group used, and determine that second network side is set according to the first information of second network side equipment The standby demodulated reference signal group used；The demodulated reference signal group includes one or more demodulated reference signals；The terminal One or more of the demodulated reference signal group used according to the first network side apparatus demodulated reference signal is demodulated from institute First part's data that first network side apparatus receives are stated, and the demodulation reference used according to second network side equipment One or more of signal group demodulated reference signal demodulates the second part data received from second network side equipment.
In conjunction with the third aspect, in the first possible realization method of the third aspect, the first network side apparatus The first information is the cell ID of the cell of the first network side apparatus；The terminal is according to the first network side apparatus The demodulated reference signal group that first network side apparatus described in the first information uses, including：The terminal determines the first network The corresponding demodulated reference signal group of cell ID of the cell of side apparatus.
In conjunction with the third aspect, in second of possible realization method of the third aspect, the first network side apparatus The first information is the code word that first network side apparatus uses；The terminal is true according to the first information of the first network side apparatus The demodulated reference signal group that the fixed first network side apparatus uses, including：The terminal determines the first network side apparatus The corresponding demodulated reference signal group of code word used.
In conjunction with second of possible realization method of the third aspect or the third aspect, the third in the third aspect is possible In realization method, the terminal determines the corresponding demodulated reference signal group of code word that the first network side apparatus uses, including： The terminal determines that the code word that the first network side apparatus uses corresponds to according to the correspondence of code word and antenna port set Demodulated reference signal group, the antenna port in the antenna port set is the demodulation that the demodulated reference signal group includes The antenna port of reference signal；And/or the terminal is according to the pilot tone of demodulated reference signal in code word and demodulated reference signal group The correspondence of pattern or running time-frequency resource determines the corresponding demodulated reference signal of code word that the first network side apparatus uses Group；And/or the terminal is according to pair of the demodulated reference signal sequence of demodulated reference signal in code word and demodulated reference signal group It should be related to, determine the corresponding demodulated reference signal group of code word that the first network side apparatus uses.
In conjunction with the third aspect, in the 4th kind of possible realization method of the third aspect, the first network side apparatus The first information is the transport layer information that first network side apparatus uses；The terminal is according to the first of the first network side apparatus Information determines the demodulated reference signal group that the first network side apparatus uses, including：The terminal determines the first network The corresponding demodulated reference signal group of transport layer information that side apparatus uses.
In conjunction with the 4th kind of possible realization method of the third aspect or the third aspect, the 5th kind in the third aspect is possible In realization method, the terminal determines the corresponding demodulated reference signal of transport layer information that the first network side apparatus uses Group, including：The terminal determines the first network side apparatus according to the correspondence of transport layer information and antenna port set The corresponding demodulated reference signal group of transport layer information used, the antenna port in the antenna port set are demodulation ginseng Examine the antenna port for the demodulated reference signal that signal group includes；And/or the terminal is according to transport layer information and demodulation reference The correspondence of the pilot frequency design of demodulated reference signal or running time-frequency resource in signal group determines that the first network side apparatus uses The corresponding demodulated reference signal group of transport layer information；And/or the terminal is according to transport layer information and demodulated reference signal group The correspondence of the demodulated reference signal sequence of middle demodulated reference signal determines the transport layer that the first network side apparatus uses The corresponding demodulated reference signal group of information.
The 5th kind in conjunction with the possible realization method of the first of the third aspect or the third aspect to the third aspect is possible Any one in realization method, in the 6th kind of possible realization method of the third aspect, second network side equipment The first information is the cell ID of the cell of second network side equipment；The terminal is according to second network side equipment The first information determines the demodulated reference signal group that second network side equipment uses, including：The terminal determines described second The corresponding demodulated reference signal group of cell ID of the cell of network side equipment.
The 6th kind in conjunction with the possible realization method of the first of the third aspect or the third aspect to the third aspect is possible Any one in realization method, in the 7th kind of possible realization method of the third aspect, second network side equipment The first information is the code word that the second network side equipment uses；The terminal is true according to the first information of second network side equipment The demodulated reference signal group that fixed second network side equipment uses, including：The terminal determines second network side equipment The corresponding demodulated reference signal group of code word used.
In conjunction with the 7th kind of possible realization method of the third aspect or the third aspect, the 8th kind in the third aspect is possible In realization method, second network side equipment determines the corresponding demodulation reference letter of code word that second network side equipment uses Number group, including：The terminal determines that second network side equipment uses according to the correspondence of code word and antenna port set The corresponding demodulated reference signal group of code word, the antenna port in the antenna port set is in the demodulated reference signal group Including demodulated reference signal antenna port；And/or the terminal is according to demodulation reference in code word and demodulated reference signal group The pilot frequency design of signal or the correspondence of running time-frequency resource determine the corresponding demodulation of code word that second network side equipment uses Reference signal group；And/or the terminal is according to the demodulated reference signal of demodulated reference signal in code word and demodulated reference signal group The correspondence of sequence determines the corresponding demodulated reference signal group of code word that second network side equipment uses.
The 8th kind in conjunction with the possible realization method of the first of the third aspect or the third aspect to the third aspect is possible Any one in realization method, in the 9th kind of possible realization method of the third aspect, second network side equipment The first information is the transport layer information that the second network side equipment uses；The terminal is according to the first of second network side equipment Information determines the demodulated reference signal group that second network side equipment uses, including：The terminal determines second network The corresponding demodulated reference signal group of transport layer information that side apparatus uses.
In conjunction with the 9th kind of possible realization method of the third aspect or the third aspect, the tenth kind in the third aspect is possible In realization method, second network side equipment determines the corresponding demodulation of transport layer information that second network side equipment uses Reference signal group, including：The terminal determines second net according to the correspondence of transport layer information and antenna port set The corresponding demodulated reference signal group of transport layer information that network side apparatus uses, the antenna port in the antenna port set is institute State the antenna port for the demodulated reference signal that demodulated reference signal group includes；And/or the terminal according to transport layer information with The correspondence of the pilot frequency design of demodulated reference signal or running time-frequency resource in demodulated reference signal group determines second network side The corresponding demodulated reference signal group of transport layer information that equipment uses；And/or the terminal is joined according to transport layer information and demodulation The correspondence for examining the demodulated reference signal sequence of demodulated reference signal in signal group determines that second network side equipment uses The corresponding demodulated reference signal group of transport layer information.
In conjunction with the tenth kind of possible realization method of the third aspect or the third aspect, in a kind of the tenth possibility of the third aspect Realization method in, further include：The terminal receives the instruction information that the first network side apparatus is sent, the instruction information It is used to indicate the demodulated reference signal group and/or be used to indicate second network side equipment that the first network side apparatus uses The demodulated reference signal group used.
Fourth aspect provides a kind of network side equipment, including：
Processor, for determining the first information, the first information used in the first information and the second network side equipment It is different；And demodulated reference signal group is determined according to the first information；The demodulated reference signal group includes one or more Demodulated reference signal；Transmitter, for sending one or more of demodulated reference signal group demodulation reference letter to terminal Number.
In conjunction with fourth aspect, in the first possible realization method of fourth aspect, the first information is the net The cell ID of the cell of network side apparatus；The processor is specifically used for：Determine that the cell ID of the cell is corresponding described Demodulated reference signal group.
In conjunction with fourth aspect, in second of possible realization method of fourth aspect, the first information is network side The code word that equipment uses；The processor is specifically used for：Determine the corresponding demodulated reference signal group of the code word.
In conjunction with second of possible realization method of fourth aspect or fourth aspect, the third in fourth aspect is possible In realization method, the processor is specifically used for：According to the correspondence of code word and antenna port set, the code word pair is determined The demodulated reference signal group answered, the antenna port in the antenna port set are the solution that the demodulated reference signal group includes Adjust the antenna port of reference signal；And/or according to the pilot frequency design of demodulated reference signal in code word and demodulated reference signal group or The correspondence of running time-frequency resource determines the corresponding demodulated reference signal group of the code word；And/or believed according to code word and demodulation reference The correspondence of the demodulated reference signal sequence of demodulated reference signal, determines the corresponding demodulated reference signal of the code word in number group Group.
In conjunction with fourth aspect, in the 4th kind of possible realization method of fourth aspect, the first information is network side The transport layer information that equipment uses；The processor is specifically used for：Determine the corresponding demodulated reference signal of the transport layer information Group.
In conjunction with the 4th kind of possible realization method of fourth aspect or fourth aspect, the 5th kind in fourth aspect is possible In realization method, the processor is specifically used for：According to the correspondence of transport layer information and antenna port set, determine described in The corresponding demodulated reference signal group of transport layer information, the antenna port in the antenna port set are the demodulated reference signal The antenna port for the demodulated reference signal that group includes；And/or join according to being demodulated in transport layer information and demodulated reference signal group The pilot frequency design of signal or the correspondence of running time-frequency resource are examined, determines the corresponding demodulated reference signal group of the transport layer information； The corresponding pass according to transport layer information and the demodulated reference signal sequence of demodulated reference signal in demodulated reference signal group and/or System, determines the corresponding demodulated reference signal group of the transport layer information.
The 5th kind in conjunction with the possible realization method of the first of fourth aspect or fourth aspect to fourth aspect is possible Any one in realization method, in the 6th kind of possible realization method of fourth aspect, the transmitter is additionally operable to：To institute It states the second network side equipment and sends the first information, so that second network side equipment determines that second network side equipment uses Demodulated reference signal group.
The 6th kind in conjunction with the possible realization method of the first of fourth aspect or fourth aspect to fourth aspect is possible Any one in realization method, in the 7th kind of possible realization method of fourth aspect, the transmitter is additionally operable to：To institute It states the second network side equipment and sends instruction information, the instruction information is used to indicate the demodulation that the first network side apparatus uses Reference signal group and/or it is used to indicate the demodulated reference signal group that second network side equipment uses.
The 7th kind in conjunction with the possible realization method of the first of fourth aspect or fourth aspect to fourth aspect is possible Any one in realization method, in the 8th kind of possible realization method of fourth aspect, the transmitter is additionally operable to：To institute The first information that terminal sends the first network side apparatus is stated, so that the terminal determines that the first network side apparatus uses Demodulated reference signal group.
5th aspect, provides a kind of network side equipment, including：
Receiver, the first information of the first network side apparatus for receiving the transmission of first network side apparatus, described first The first information of network side equipment described in the first information of network side equipment is different；Processor, for according to the first network The first information of side apparatus determines the first information of network side equipment；And it is determined according to the first information of the network side equipment Demodulated reference signal group；Transmitter, for sending one or more of demodulated reference signal group demodulation reference to terminal Signal.
In conjunction with the 5th aspect, in the first possible realization method of the 5th aspect, the receiver is additionally operable to：It receives The instruction information that the first network side apparatus is sent, the instruction information are used to indicate what the first network side apparatus used Demodulated reference signal group and/or it is used to indicate the demodulated reference signal group that the network side equipment uses.
In conjunction with the 5th aspect, in second of possible realization method of the 5th aspect, the first of the network side equipment Information is the cell ID of the cell of the network side equipment；The processor is specifically used for：Determine the network side equipment The corresponding demodulated reference signal group of cell ID of cell.
In conjunction with the 5th aspect, in the third possible realization method of the 5th aspect, the first of the network side equipment Information is the code word that network side equipment uses；The processor is specifically used for：Determine the corresponding demodulated reference signal of the code word Group.
In conjunction with the third possible realization method of the 5th aspect or the 5th aspect, the 4th kind at the 5th aspect is possible In realization method, the processor is specifically used for：According to the correspondence of code word and antenna port set, the code word pair is determined The demodulated reference signal group answered, the antenna port in the antenna port set are the solution that the demodulated reference signal group includes Adjust the antenna port of reference signal；And/or according to the pilot frequency design of demodulated reference signal in code word and demodulated reference signal group or The correspondence of running time-frequency resource determines the corresponding demodulated reference signal group of the code word；And/or believed according to code word and demodulation reference The correspondence of the demodulated reference signal sequence of demodulated reference signal, determines the corresponding demodulated reference signal of the code word in number group Group.
In conjunction with the 5th aspect, in the 5th kind of possible realization method of the 5th aspect, the first of the network side equipment Information is the transport layer information that network side equipment uses；The processor is specifically used for：Determine that the transport layer information is corresponding Demodulated reference signal group.
In conjunction with the 5th kind of possible realization method of the 5th aspect or the 5th aspect, the 6th kind at the 5th aspect is possible In realization method, the processor is specifically used for：According to the correspondence of transport layer information and antenna port set, determine described in The corresponding demodulated reference signal group of transport layer information, the antenna port in the antenna port set are the demodulated reference signal The antenna port for the demodulated reference signal that group includes；And/or join according to being demodulated in transport layer information and demodulated reference signal group The pilot frequency design of signal or the correspondence of running time-frequency resource are examined, determines the corresponding demodulated reference signal group of the transport layer information； The corresponding pass according to transport layer information and the demodulated reference signal sequence of demodulated reference signal in demodulated reference signal group and/or System, determines the corresponding demodulated reference signal group of the transport layer information.
The 6th kind in conjunction with the first possible realization method of the 5th aspect or the 5th aspect to the 5th aspect is possible Any one in realization method, in the 7th kind of possible realization method of the 5th aspect, the transmitter is additionally operable to：To institute The first information that terminal sends second network side equipment is stated, so that the terminal determines that second network side equipment uses Demodulated reference signal group.
6th aspect, provides a kind of terminal device, including：
Receiver, the first information and the second net of the first network side apparatus for receiving the transmission of first network side apparatus The first information for the second network side equipment that network side apparatus is sent；The first information and the second network of the first network side apparatus The first information of side apparatus is different；Processor, for determining described first according to the first information of the first network side apparatus The demodulated reference signal group that network side equipment uses, and determine described according to the first information of second network side equipment The demodulated reference signal group that two network side equipments use；The demodulated reference signal group includes that one or more demodulation references are believed Number；And one or more of demodulated reference signal group used according to the first network side apparatus demodulated reference signal solution The first part's data received from the first network side apparatus are adjusted, and the solution used according to second network side equipment Adjust second that the demodulated reference signal demodulation of one or more of reference signal group is received from second network side equipment Divided data.
In conjunction with the 6th aspect, in the first possible realization method of the 6th aspect, the first network side apparatus The first information is the cell ID of the cell of the first network side apparatus；The processor is specifically used for：Determine described first The corresponding demodulated reference signal group of cell ID of the cell of network side equipment.
In conjunction with the 6th aspect, in second of possible realization method of the 6th aspect, the first network side apparatus The first information is the code word that first network side apparatus uses；The processor is specifically used for：Determine the first network side apparatus The corresponding demodulated reference signal group of code word used.
In conjunction with second of possible realization method of the 6th aspect or the 6th aspect, the third at the 6th aspect is possible In realization method, the processor is specifically used for：According to the correspondence of code word and antenna port set, first net is determined The corresponding demodulated reference signal group of code word that network side apparatus uses, the antenna port in the antenna port set are the demodulation The antenna port for the demodulated reference signal that reference signal group includes；And/or it is demodulated with demodulated reference signal group according to code word The pilot frequency design of reference signal or the correspondence of running time-frequency resource determine that the code word that the first network side apparatus uses is corresponding Demodulated reference signal group；And/or the demodulated reference signal sequence according to demodulated reference signal in code word and demodulated reference signal group Correspondence, determine the corresponding demodulated reference signal group of code word that the first network side apparatus uses.
In conjunction with the 6th aspect, in the 4th kind of possible realization method of the 6th aspect, the first network side apparatus The first information is the transport layer information that first network side apparatus uses；The processor is specifically used for：Determine the first network The corresponding demodulated reference signal group of transport layer information that side apparatus uses.
In conjunction with the 4th kind of possible realization method of the 6th aspect or the 6th aspect, the 5th kind at the 6th aspect is possible In realization method, the processor is specifically used for：According to the correspondence of transport layer information and antenna port set, determine described in The corresponding demodulated reference signal group of transport layer information that first network side apparatus uses, the antenna end in the antenna port set Mouth is the antenna port for the demodulated reference signal that the demodulated reference signal group includes；And/or according to transport layer information and solution The pilot frequency design of demodulated reference signal or the correspondence of running time-frequency resource in reference signal group are adjusted, determines that the first network side is set The standby corresponding demodulated reference signal group of transport layer information used；And/or according in transport layer information and demodulated reference signal group The correspondence of the demodulated reference signal sequence of demodulated reference signal determines the transport layer letter that the first network side apparatus uses Cease corresponding demodulated reference signal group.
The 5th kind in conjunction with the first possible realization method of the 6th aspect or the 6th aspect to the 6th aspect is possible Any one in realization method, in the 6th kind of possible realization method of the 6th aspect, second network side equipment The first information is the cell ID of the cell of second network side equipment；The processor is specifically used for：Determine described second The corresponding demodulated reference signal group of cell ID of the cell of network side equipment.
The 6th kind in conjunction with the first possible realization method of the 6th aspect or the 6th aspect to the 6th aspect is possible Any one in realization method, in the 7th kind of possible realization method of the 6th aspect, second network side equipment The first information is the code word that the second network side equipment uses；The processor is specifically used for：Determine second network side equipment The corresponding demodulated reference signal group of code word used.
In conjunction with the 7th kind of possible realization method of the 6th aspect or the 6th aspect, the 8th kind at the 6th aspect is possible In realization method, the processor is specifically used for：According to the correspondence of code word and antenna port set, second net is determined The corresponding demodulated reference signal group of code word that network side apparatus uses, the antenna port in the antenna port set are the demodulation The antenna port for the demodulated reference signal that reference signal group includes；And/or it is demodulated with demodulated reference signal group according to code word The pilot frequency design of reference signal or the correspondence of running time-frequency resource determine that the code word that second network side equipment uses is corresponding Demodulated reference signal group；And/or the demodulated reference signal sequence according to demodulated reference signal in code word and demodulated reference signal group Correspondence, determine the corresponding demodulated reference signal group of code word that second network side equipment uses.
The 8th kind in conjunction with the first possible realization method of the 6th aspect or the 6th aspect to the 6th aspect is possible Any one in realization method, in the 9th kind of possible realization method of the 6th aspect, second network side equipment The first information is the transport layer information that the second network side equipment uses；The processor is specifically used for：Determine second network The corresponding demodulated reference signal group of transport layer information that side apparatus uses.
In conjunction with the 9th kind of possible realization method of the 6th aspect or the 6th aspect, the tenth kind at the 6th aspect is possible In realization method, the processor is specifically used for：According to the correspondence of transport layer information and antenna port set, determine described in The corresponding demodulated reference signal group of transport layer information that second network side equipment uses, the antenna end in the antenna port set Mouth is the antenna port for the demodulated reference signal that the demodulated reference signal group includes；And/or according to transport layer information and solution The pilot frequency design of demodulated reference signal or the correspondence of running time-frequency resource in reference signal group are adjusted, determines that second network side is set The standby corresponding demodulated reference signal group of transport layer information used；And/or according in transport layer information and demodulated reference signal group The correspondence of the demodulated reference signal sequence of demodulated reference signal determines the transport layer letter that second network side equipment uses Cease corresponding demodulated reference signal group.
In conjunction with the tenth kind of possible realization method of the 6th aspect or the 6th aspect, in a kind of the tenth possibility of the 6th aspect Realization method in, the receiver is additionally operable to：Receive the instruction information that the first network side apparatus is sent, the instruction letter Breath is used to indicate the demodulated reference signal group that the first network side apparatus uses and/or is used to indicate second network side and sets The standby demodulated reference signal group used.
7th aspect, the embodiment of the present invention provide a kind of data transmission device, and the data transmission device includes for real The function module of method described in existing first aspect.
Eighth aspect, the embodiment of the present invention also provide a kind of data transmission device, and the data transmission device includes being used for Realize the function module of the method described in second aspect.
9th aspect, the embodiment of the present invention also provide a kind of data transmission device, and the data transmission device includes being used for Realize the function module of the method described in the third aspect.
Tenth aspect, the embodiment of the present invention also provide a kind of computer storage media, are deposited on the computer storage media Program code is contained, said program code includes for realizing the method for the first aspect, second aspect or the third aspect The instruction of arbitrary possible realization method.
Description of the drawings
Fig. 1 a- Fig. 1 b are a kind of communication system architecture figure provided in an embodiment of the present invention；
Fig. 2 is a kind of structure chart of data transmission device provided in an embodiment of the present invention；
Fig. 3 is a kind of flow chart of the data transmission method of first network side apparatus side provided in an embodiment of the present invention；
Fig. 4 is a kind of schematic diagram of pilot frequency design provided in an embodiment of the present invention.
Specific implementation mode
A kind of data transmission method of offer of the embodiment of the present invention, network side equipment and terminal device, to realize that cooperation passes Defeated lower different base station uses the purpose of orthogonal demodulated reference signal.
The implementation process of scheme, purpose in the embodiment of the present invention described in detail below.
A kind of data transmission method provided in an embodiment of the present invention, this method can be applied in communications network system.Please It is a kind of possible communications network system structure chart provided in an embodiment of the present invention with reference to shown in figure 1a and Fig. 1 b.In Fig. 1 a Shown in structure, which includes first network side apparatus, the second network side equipment and terminal device.First network Side apparatus is the service network side apparatus of terminal device, and the service side network equipment refers to that this is set by radio open agreement for terminal It is standby that RRC connections, Non-Access Stratum (English are provided：Non-access stratum, referred to as：NAS) mobile management and safety are defeated The network side equipment of services such as enter.First network side apparatus and terminal device can be communicated by air protocol.Second net The quantity of network side apparatus can be one or more, and be the network side equipment for meeting different Q CL with first network side apparatus, one As for, the second network side equipment is located in a different geographical location with first network side apparatus.In general, the second network side equipment is The adjacent network side equipment of first network side apparatus.Second network side equipment can also be carried out data transmission by air protocol.The Two network side equipments for assisting first network side apparatus to carry out data transmission jointly to terminal device, such as multiple stream transmission or Diversity transmission, so the second network side equipment is referred to as collaborative network side apparatus.First network side apparatus and the second network It can also be communicated between side apparatus, such as carry out control message and/or indicate the transmission of information.
In practice, first network side apparatus can also be collaborative network side apparatus, and the second network side equipment is clothes Business network side equipment.
On the other hand, first network side apparatus and the second network side equipment can be the different transfer points of same equipment, example Such as the radio frequency unit (English of two distances farther out：Radio Unit, referred to as：RU) or referred to as radio-frequency maser is (English：Radio Head, referred to as：) or two completely self-contained network side equipments, such as two base stations RH.Can also be under same base station Different aerial panels, be not limited herein.
In the structure shown in Fig. 1 b, unlike structure shown in Fig. 1 a, first network side apparatus and the second network Side apparatus accesses centralized scheduler simultaneously.It can not have to directly be led between first network side apparatus and the second network side equipment Letter, and above-mentioned control message and/or instruction information are from centralized scheduler to first network side apparatus and the second network side equipment It assigns.
In actual deployment, centralized scheduler can be individual physical equipment, can also be to be integrated in first network side A function module in equipment, or a function module being integrated in other equipment not limit herein.
It should be understood that illustrating only a terminal device (orphan terminal) and two in communication system shown in Fig. 1 a and Fig. 1 b The situation of network side equipment, but the present invention is not limited thereto.May also include in the communication system except the two network side equipments with The outer neighbor network side apparatus and terminal device of transmission services, the covering of each network side equipment on identical running time-frequency resource It can also include the terminal device of other quantity in range.It is further alternative, network side equipment and terminal in Fig. 1 a and Fig. 1 b Communication system where equipment can also include other network entities such as network controller and/or mobile management entity, the present invention Embodiment does not limit.
Network side equipment referred to herein can be global system for mobile telecommunications (English：Global System of Mobile communication；Referred to as：GSM) or CDMA is (English：Code Division Multiple Access； Referred to as：CDMA base station (the English in)：Base Transceiver Station；Referred to as：BTS can also be wideband code division in) Multiple access (English：Wideband Code Division Multiple Access；Referred to as：WCDMA base station (the English in)： NodeB；Abbreviation NB), it can also be long term evolution (English：Long Term Evolution；Referred to as：LTE the evolved base in) It stands (English：Evolutional Node B；Referred to as：ENB or eNodeB) either relay station or access point or future 5G nets Base station in network, transfer point (English：Transmission and Receiver Point；Referred to as：TRP or TP) etc., herein In do not limit.
It can also be line termination unit, wireless terminal that terminal device referred to herein, which can be wireless terminal device, Equipment can refer to the equipment for providing a user voice and/or other business datum connectivity, the hand with wireless connecting function It holds formula equipment or is connected to other processing equipments of radio modem.Wireless terminal device can be through wireless access network (English Text：Radio Access Network；Referred to as：RAN it) is communicated with one or more core nets, wireless terminal device can be with It is mobile terminal, such as mobile phone (or be " honeycomb " phone) and the computer with mobile terminal, for example, it may be portable Formula, pocket, hand-held, built-in computer or vehicle-mounted mobile device, they exchanged with wireless access network language and/or Data.For example, personal communication service (English：Personal Communication Service；Referred to as：PCS) phone, wireless Phone, Session initiation Protocol (English：Session Initiation Protocol；Referred to as：SIP) phone, wireless local loop (English：Wireless Local Loop；Referred to as：WLL it) stands, personal digital assistant (English：Personal Digital Assistant；Referred to as：The equipment such as PDA).Wireless terminal device is referred to as system, subscriber unit (Subscriber Unit), subscriber station (Subscriber Station), movement station (Mobile Station), mobile station (Mobile), distant station (Remote Station), remote terminal (Remote Terminal), access terminal (Access Terminal), user terminal (User Terminal), user agent (User Agent), user equipment (User Device or User Equipment).
Terminal device can also be network side equipment, and network side equipment can also be terminal device, and the program is also applied for The system of network side and network-side communication, terminal device and terminal equipment in communication.
In addition, the terms "and/or", only a kind of incidence relation of description affiliated partner, indicates may exist Three kinds of relationships, for example, A and/or B, can indicate：Individualism A exists simultaneously A and B, these three situations of individualism B.Separately Outside, character "/" herein, it is a kind of relationship of "or" to typically represent forward-backward correlation object.
Some English abbreviations herein are the description carried out to the embodiment of the present invention by taking LTE system as an example, may be with The evolution for network changes, and specific evolution can refer to the description in respective standard.
Referring next to Fig. 2, Fig. 2 is a kind of possible structure of data transmission device provided in an embodiment of the present invention Figure.The device is, for example, a kind of possible structure chart of above-mentioned first network side apparatus, the second network side equipment, terminal device. As shown in Fig. 2, the device includes：Processor 10, transmitter 20, receiver 30, memory 40 and antenna 50.Memory 40, hair Send device 20 and receiver 30 and processor 10 that can be attached by bus.Certainly, in practice, memory 40, hair It send and can not be bus structures between device 20 and receiver 30 and processor 10, and can be other structures, such as hub-and-spoke configuration, The application is not especially limited.
Optionally, processor 10 can be specifically general central processing unit or application-specific integrated circuit (English： Application Specific Integrated Circuit, referred to as：ASIC), can be that one or more is used to control journey The integrated circuit that sequence executes can be use site programmable gate array (English：Field Programmable Gate Array, referred to as：FPGA) the hardware circuit developed, can be baseband processor.
Optionally, processor 10 may include at least one processing core.
Optionally, memory 40 may include read-only memory (English：Read Only Memory, referred to as：ROM), with Machine accesses memory (English：Random Access Memory, referred to as：RAM one or more) and in magnetic disk storage.It deposits Reservoir 40 is used to store data and/or instruction required when processor 10 is run.The quantity of memory 40 can be one or more It is a.Part in memory 40 can be integral to the processor setting, can also be arranged independently of processor.
Optionally, each antenna port can send a kind of demodulated reference signal (English：Demodulation Reference Signal, referred to as：DM-RS), it is used for channel estimation and PDSCH data demodulations that terminal device carries out PDSCH. By taking LTE as an example, support 8 antenna ports, this 8 antenna ports that can be divided into two groups in LTE, port { 7,8,11,13 } are one Group, port { 9,10,12,14 } are another group.Two groups of antenna ports are distinguished by frequency division, four antenna ports in each group It is distinguished by code point.
Optionally, transmitter 20 and receiver 30 can also can physically integrate independently of each other.Transmitter 20 can carry out data transmission by antenna 50.Receiver 30 can carry out data receiver by antenna 50.
Referring next to as shown in figure 3, being the data transmission method of first network side apparatus side in the embodiment of the present invention Flow chart.As shown in figure 3, this method includes：
Step 301, first network side apparatus determines the first information.
Step 302, first network side apparatus determines demodulated reference signal group according to the first information.
Step 303, first network side apparatus sends the demodulation of one or more of described demodulated reference signal group to terminal Reference signal.
In embodiments of the present invention, demodulated reference signal group is pre-defined, demodulated reference signal is divided into multiple Grouping.For example, resource that can be shared by the antenna port by demodulated reference signal is according to the time-division, at least one of frequency division, code point Mode is grouped, and by the way that demodulated reference signal to be grouped, different base station can be made to believe using different demodulation references Number when can ensure it is orthogonal.
For example, in LTE system, LTE supports 8 antenna ports, this 8 antenna ports that can be divided into two groups, end Mouth { 7,8,11,13 } is one group, and port { 9,10,12,14 } are another group, for example, port 7, port 8 use identical resource list Member (English：Resource Element, RE), port 9 and port 10 use identical RE.It in other words, can be according to antenna end Mouthful, demodulated reference signal is divided into two groups, the demodulated reference signal sent on port { 7,8,11,13 } is one group, in port The demodulated reference signal sent on { 9,10,12,14 } is one group.
It, can also be according to pilot patterns if can have different pilot frequency designs on same antenna port for 5G systems Case is grouped.For example, pilot frequency design 1,2 corresponding demodulated reference signals are one group, pilot frequency design 3,4 corresponding demodulation references Signal is one group.Pilot frequency design is mapping mode of the pilot frequency sequence in time domain and/or frequency domain resource.
It can also be grouped according to demodulated reference signal sequence, for example scrambling ID1,2 corresponding demodulated reference signals are One group, scrambling ID3,4 corresponding demodulated reference signals are one group.
In embodiments of the present invention, each demodulated reference signal group includes at least the corresponding demodulation reference letter of an information Number, which can be at least one of antenna port, pilot frequency design, scramble information.In other words, each demodulated reference signal Group includes one or more demodulated reference signals.
It, can be by way of indicate information and the second network side equipment after the predefined grouping by demodulated reference signal And/or terminal interacts.First network side apparatus sends instruction information to the second network side equipment and/or terminal, can refer to The demodulated reference signal group that first network side apparatus uses and/or the demodulated reference signal that the second network side equipment uses are shown Group, when indicating the demodulated reference signal group that first network side apparatus uses, the second network side equipment also recalls that itself can be with The demodulated reference signal group used, what the demodulated reference signal group that the second network side equipment uses was used with first network side apparatus Demodulated reference signal group is different, just can guarantee that realization is orthogonal.
Certainly, above-mentioned demodulated reference signal group can not be indicated by way of indicating information, but by predefined Mode.
In embodiments of the present invention, the first information of first network side apparatus can be the cell of first network side apparatus The code word that cell ID or first network side apparatus use, the first information of the first network side apparatus and the second network side equipment The first information it is different, the first information of the second network side equipment can be the cell of the second network side equipment cell ID or The code word that second network side equipment uses.For example, first network side apparatus uses code word 1, then the second network side equipment uses code Word 2.
Optionally, need first to determine the correspondence of cell ID and demodulated reference signal group.Cell mark according to cell The size of knowledge determines specifically used demodulated reference signal group, for example, the small cell of cell ID uses demodulated reference signal group 1, the big cell of cell ID uses demodulated reference signal group 2.Can certainly be that the big cell of cell ID is joined using demodulation Signal group 1 is examined, the small cell of cell ID uses demodulated reference signal group 2, in specific application specific distribution.It can also use The correspondence of other rules, does not limit herein.
When there are multiple demodulated reference signal groups, such as in the case where demodulated reference signal group is 4 groups, cell ID Demodulated reference signal group 1,2 may be used in small cell, and the big cell of cell ID uses demodulated reference signal group 3,4.Or The small cell of cell ID uses demodulated reference signal group 1,3, the big cell of cell ID to use demodulated reference signal group 2,4. Specific demodulated reference signal group number, and the correspondence of other rules can also be used, it does not limit herein.
When the number of cell has multiple (quantity for being less than or equal to demodulated reference signal group), can each cell use not Same demodulated reference signal group.For example, the number of cell is 4, the number of demodulated reference signal group is 4, can be according to suitable Sequence corresponds, specific as shown in table 1.Numerical value in table is only that for example, other numerical value and sequence are also suitable, herein not It limits.
Table 1
Cell ID sorts The number of demodulated reference signal group
ID index1 1
ID index2 2
ID index3 3
ID index4 4
As shown in table 1, the cell ID for participating in the cell of joint transmission is 67,234,34,6, then by cell ID from small To being ordered as greatly：ID indexes (index) 1=cells (cell) ID6, ID index2=cell ID34, ID index3=cell ID67, ID index4=cell ID234.Either according to being ordered as from big to small：ID index1=cell ID234, ID Index2=cell ID67, ID index3=cell ID34, ID index4=cell ID6.
When at most only there are one when cooperation cell and serving cell cooperation transmission, the cells of other cooperations may be used identical Or different demodulated reference signal groups, such as serving cell be ID index1 in the case of, cell ID and demodulated reference signal The correspondence of group is as shown in table 2.Numerical value in table is only that for example, other numerical value and sequence are also suitable, and are not done herein It limits.
Table 2
Cell ID sorts The number of demodulated reference signal group
ID index1 1,2
ID index2 3,4
ID index3 3,4
ID index4 3,4
Above-mentioned cell ID and the correspondence of demodulated reference signal group can be predefined, can also be the net of cooperation Interaction notice between network side apparatus so that the all-network side apparatus of cooperation both knows about the correspondence.
For first network side apparatus after the cell ID for the cell that itself is determined, can be determined according to cell ID should The corresponding demodulated reference signal group of cell ID.For example, the cell ID of the cell of first network side apparatus is 34, corresponding table 1 In ID index2, can learn that the number of its corresponding demodulated reference signal group is 3,4 in table 1 above.
When the first information of above-mentioned first network side apparatus is the code word that first network side apparatus uses, first network side Correspondence of the equipment according to code word and demodulated reference signal group, it may be determined that go out the code word that first network side apparatus uses and correspond to Demodulated reference signal group.
Above-mentioned code word can be the predefined or network side by cooperating with the correspondence of demodulated reference signal group Interaction between equipment.The code word can be combined with the correspondence of demodulated reference signal group by one of following manner or arbitrarily It indicates.
The correspondence of mode one, code word and antenna port set.
For example, when demodulated reference signal antenna port can be 7,8,9,10,11,12,13,14, can be predefined as The antenna port set that code word 1 can use be { 7,8,11,13 }, the antenna port set that code word 2 can use be 9,10, 12,14 } or the antenna port set that can use of code word 1 is { 9,10,12,14 }, the antenna port collection that code word 2 can use It is combined into { 7,8,11,13 } or antenna port set that code word 1 can use is { 7,8 }, the antenna port that code word 2 can use Collection is combined into { 9,10 }, and the antenna port set that code word 3 can use is { 11,13 }, the antenna port set that code word 4 can use For { 12,14 }.Such as when demodulated reference signal antenna port can be 7,8,9,10,11,12,13,14,15,16,17,18, When 19,20,21,22, the antenna port set that code word 1 can use is { 7,8,11,13 }, the antenna end that code word 2 can use Mouth collection is combined into { 9,10,12,14 }, and the antenna port set that code word 3 can use is { 15,16,17,18 }, and code word 4 can use Antenna port set be { 19,20,21,22 } or antenna port set that code word 1 can use is { 7,8,11,13 }, code The antenna port set that word 2 can use be { 9,10,12,14 }, the antenna port set that code word 3 can use be 15,16, 19,20 }, the antenna port set that code word 4 can use is { 17,18,21,22 }.Only it is citing, specific demodulation reference herein The antenna port of signal can have other numerical value, not limit herein.Specific code word and demodulated reference signal antenna port collection The correspondence of conjunction can also use other modes, not limit herein.
The pilot frequency design of demodulated reference signal or the correspondence of running time-frequency resource in mode two, code word and demodulated reference signal group.
It, can be by code word and demodulation reference when demodulated reference signal can be designed there are many pilot frequency design or running time-frequency resource The pilot frequency design or running time-frequency resource of signal establish correspondence.It is normal for 8 antennas such as by taking the pilot frequency design of CSI-RS as an example There are 8 kinds of pilot frequency designs for subframe, then the pilot frequency design that code word 1 may be used is the 1st to 4 kind, the pilot tone that code word 2 may be used Pattern is the 5th to 8 kind.Or 1 available pilot frequency design of code word is the 1st, 3,5,7 kind, the pilot frequency design that code word 2 may be used is 2nd, 4,6,8 kind.As follows by taking the pattern of CSI-RS as an example, as shown in table 3, (k', l') indicates a resource unit combination, uses In two continuous resource units (RE) in instruction time domain, k ' is that the son of first RE and second RE in resource unit combination carries Wave is numbered, and l ' is the symbol number of first RE in resource unit combination, and the symbol number of second RE is l '+1.ns'=ns Mod2, wherein nsFor time-gap number.
Table 3
Pilot frequency design is CSI-RS in the case of setting to 0, and the mapping of the CSI-RS under different antennae port is as shown in Figure 4.
Only it is citing herein, the number of the pilot frequency design of specific demodulated reference signal can have other numerical value.Specifically The pilot frequency design of demodulated reference signal can have other mappings.And code word pass corresponding with the pilot frequency design of demodulated reference signal System can also have other modes, not limit herein.
The corresponding pass of mode three, code word and the demodulated reference signal sequence of demodulated reference signal in demodulated reference signal group System.
For example, there are many demodulated reference signal sequences, it is assumed that have 8 kinds, then the demodulated reference signal sequence that code word 1 may be used It is classified as the 1st, 2,3,4, the demodulated reference signal sequence that code word 2 may be used is the 5th, 6,7,8.Or code word 1 can adopt Demodulated reference signal sequence is the 1st, 3,5,7, and the demodulated reference signal sequence that code word 2 may be used is the 2nd, 4,6,8 It is a.Only it is citing herein, the number of the sequence of specific demodulated reference signal can have other numerical value.And code word and demodulation reference The correspondence of signal sequence can also have other modes, not limit herein.
After the correspondence that code word and demodulated reference signal group is determined, first network side apparatus according to the code word with The correspondence of demodulated reference signal group determines the corresponding demodulated reference signal group of code word that first network side apparatus uses.
Specifically, the correspondence of code word and demodulated reference signal group is the correspondence of code word and antenna port set When, first network side apparatus determines what first network side apparatus used according to the correspondence of the code word and antenna port set The correspondence demodulated reference signal group of code word.The antenna port set is the demodulated reference signal that demodulated reference signal group includes Antenna port.
For example, first network side apparatus can be true by the correspondence of code word and antenna port set using code word 1 The antenna port set of 1 corresponding demodulated reference signal group of constant bit word is { 7,8,11,13 }.Correspondingly, the second network side equipment Using code word 2, the antenna port set of the 2 corresponding demodulated reference signal group of code word is { 9,10,12,14 }.Network side equipment In transmitted codewords, first network side apparatus can be with default transport code word 1, the second network side equipment default transport code word 2.Terminal When can receive more than two code word, code word 1, the antenna port set of 2 corresponding demodulated reference signal groups are { 7,8,11,13 }, The antenna port set that code word 3,4 corresponds to demodulated reference signal group is { 9,10,12,14 }, and first network side apparatus acquiescence passes It is at least one in defeated code word 1,2, it is at least one in the second network side equipment default transport code word 3,4.
It is code word and demodulated reference signal in demodulated reference signal group in the correspondence of code word and demodulated reference signal group Pilot frequency design or running time-frequency resource correspondence when, first network side apparatus is solved according to the code word with demodulated reference signal group The pilot frequency design of reference signal or the correspondence of running time-frequency resource are adjusted, determines the homographic solution for the code word that first network side apparatus uses Adjust reference signal group.
By taking pilot frequency design as an example, when first network side apparatus uses code word 1, the 2 corresponding demodulated reference signal group of code word The pilot frequency design of middle demodulated reference signal is the 1st to 4 kind, and the second network side equipment uses code word 2, the 2 corresponding demodulation of code word The pilot frequency design of demodulated reference signal is the 5th to 8 kind in reference signal group.First network side apparatus can with default transport code word 1, Second network side equipment default transport code word 2.When terminal can receive more than two code word, code word 1,2 corresponding demodulation reference letters The pilot frequency design of demodulated reference signal is the 1st to 4 kind in number group, demodulation reference in code word 3,4 corresponding demodulated reference signal groups The pilot frequency design of signal is the 5th to 8 kind, and at least one in first network side apparatus default transport code word 1,2, the second network side It is at least one in equipment default transport code word 3,4.
It is code word and demodulated reference signal in demodulated reference signal group in the correspondence of code word and demodulated reference signal group Demodulated reference signal sequence correspondence when, first network side apparatus is demodulated according to the code word with demodulated reference signal group The correspondence of the demodulated reference signal sequence of reference signal determines the corresponding demodulation ginseng for the code word that first network side apparatus uses Examine signal group.
For example, when first network side apparatus uses code word 1, demodulation reference in the 2 corresponding demodulated reference signal group of code word The demodulated reference signal sequence of signal is the 1st, 2,3,4, and the second network side equipment uses code word 2, the 2 corresponding demodulation of code word The demodulated reference signal sequence of demodulated reference signal is the 5th, 6,7,8 in reference signal group.First network side apparatus can write from memory Recognize transmitted codewords 1, the second network side equipment default transport code word 2.When terminal can receive more than two code word, code word 1,2 corresponds to Demodulated reference signal group in demodulated reference signal demodulated reference signal sequence be the 1st, 2,3,4, code word 3,4 corresponding solutions It is the 5th, 6,7,8 to adjust the demodulated reference signal sequence of demodulated reference signal in reference signal group, and first network side apparatus is silent Recognize it is at least one in transmitted codewords 1,2, it is at least one in the second network side equipment default transport code word 3,4.
When the first information of above-mentioned first network side apparatus is the transport layer information that first network side apparatus uses, first Correspondence of the network side equipment according to transport layer information and demodulated reference signal group, it may be determined that going out first network side apparatus makes The corresponding demodulated reference signal group of transport layer information.
Above-mentioned transport layer information can be predefined with the correspondence of demodulated reference signal group or by cooperating Interaction between network side equipment.The correspondence of the transport layer information and demodulated reference signal group can by following manner it One or arbitrary combination indicates.
The correspondence of mode one, transport layer information and antenna port set.
Transport layer information can be specific layernumber information, such as the first layer data, the second layer data, third layer data Deng, can also be specific number of plies information, such as one layer, two layers, three layer, first two layers, latter two layers, preceding layer, later layer etc..
For example, when demodulated reference signal antenna port can be 7,8,9,10,11,12,13,14, can be predefined as The correspondence of transport layer information and antenna port set can be specifically that the antenna port set that first layer data use is { 7,8 }, the antenna port set that the second layer data can use are { 9,10 }；Or first antenna end that can use of layer data Mouth collection is combined into { 9,10,12,14 }, and the antenna port set that the second layer data can use is { 7,8,11,13 }；Or first layer The antenna port set that data can use is { 7,8 }, and the antenna port set that the second layer data can use is { 9,10 }, the The antenna port set that three layer datas can use is { 11,13 }, and the antenna port set that the 4th layer data can use is {12,14}.Such as when demodulated reference signal antenna port can be 7,8,9,10,11,12,13,14,15,16,17,18,19, When 20,21,22, the antenna port set that the first layer data can use is { 7,8,11,13 }, what the second layer data can use Antenna port set is { 9,10,12,14 }, and the antenna port set that third layer data can use is { 15,16,17,18 }, the The antenna port set that four layer datas can use is { 19,20,21,22 }；Or first antenna end that can use of layer data Mouth collection is combined into { 7,8,11,13 }, and the antenna port set that the second layer data can use is { 9,10,12,14 }, third layer data The antenna port set that can be used be { 15,16,19,20 }, the antenna port set that the 4th layer data can use be 17, 18、21、22}。
For example, when demodulated reference signal antenna port can be 7,8,9,10,11,12,13,14, can be predefined as The day that the correspondence of transport layer information and antenna port set, which can be specifically transport layer information, can use when being one layer Line end mouth collection is combined into { 7,8 }, and the antenna port set that can be used when transport layer information is two layers is { 9,10 }；Or transport layer The antenna port set that information can use when being one layer is { 7,8,11,13 }, what transport layer information can use when being two layers Antenna port set is { 9,10,12,14 }；Or the antenna port set that transport layer information can use when being one layer be 7, 8 }, the antenna port set that can be used when transport layer information is two layers is { 9,10 }, and transport layer information can make when being three layers Antenna port set be { 7,8,11,13 }, the antenna port set that can be used when transport layer information is four layers be 9, 10、12、14}；Or the antenna port set that transport layer information can use when being first two layers is { 7,8,11,13 }, transport layer The antenna port set that information can use when being latter two layers is { 9,10,12,14 }.Such as when demodulated reference signal antenna port When can be 7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22, transport layer information can make when being one layer Antenna port set be { 7,8,11,13 }, the antenna port set that can be used when transport layer information is two layers be 9, 10、12、14}；Or the antenna port set that transport layer information can use when being one layer is { 7,8,11,13 }, transport layer letter The antenna port set that breath can use when being two layers is { 9,10,12,14 }, the day that transport layer information can use when being three layers Line end mouth collection is combined into { 15,16,19,20 }, the antenna port set that can be used when transport layer information is four layers be 17,18, 21、22}；Or the antenna port set that transport layer information can use when being first two layers be 7,8,11,13,15,16,19, 20 }, the antenna port set that can be used when transport layer information is latter two layers is { 9,10,12,14,17,19,21,22 }.
Only it is citing herein, the antenna port of specific demodulated reference signal can have other numerical value, not limit herein. The correspondence of specific transport layer information and the antenna port set of demodulated reference signal can also use other modes, herein It does not limit.
The pilot frequency design of demodulated reference signal or running time-frequency resource in mode two, transport layer information and demodulated reference signal group Correspondence.
Transport layer information can be specific layernumber information, such as the first layer data, the second layer data, third layer data Deng, can also be specific number of plies information, such as one layer, two layers, three layer, first two layers, latter two layers, preceding layer, later layer etc..
It, can be by transport layer information and solution when demodulated reference signal can be designed there are many pilot frequency design or running time-frequency resource The pilot frequency design or running time-frequency resource for adjusting reference signal establish correspondence.Such as by taking the pilot frequency design of CSI-RS as an example, for 8 days There are 8 kinds of pilot frequency designs for line normal sub-frames, then the pilot frequency design that the first layer data may be used is the 1st to 4 kind, second number of plies It it is the 5th to 8 kind according to the pilot frequency design that may be used.Or first the available pilot frequency design of layer data be the 1st, 3,5,7 kind, second The pilot frequency design that layer data may be used be the 2nd, 4,6,8 kind.Or transport layer information available pilot frequency design when being first two layers For the 1st, 3,5,7 kind, transport layer information be after two layers when available pilot frequency design be the 2nd, 4,6,8 kind.As follows with CSI-RS's For pattern, as shown in Table 3 above, (k', l') indicates a resource unit combination, is used to indicate two continuous money in time domain Source unit (RE), k ' are the subcarrier number of first RE and second RE in resource unit combination, and l ' combines for resource unit In first RE symbol number, the symbol number of second RE is l '+1.n 's=nsMod2, wherein nsFor time-gap number.
Pilot frequency design is CSI-RS in the case of setting to 0, and the mapping of the CSI-RS under different antennae port is as shown in Figure 4.
Only it is citing herein, the number of the pilot frequency design of specific demodulated reference signal can have other numerical value.Specifically The pilot frequency design of demodulated reference signal can have other mappings.And the pilot frequency design of transport layer information and demodulated reference signal Correspondence can also have other modes, not limit herein.
Pair of the demodulated reference signal sequence of demodulated reference signal in mode three, transport layer information and demodulated reference signal group It should be related to.
Transport layer information can be specific layernumber information, such as the first layer data, the second layer data, third layer data Deng, can also be specific number of plies information, such as one layer, two layers, three layer, first two layers, latter two layers, preceding layer, later layer etc..
For example, there are many demodulated reference signal sequences, it is assumed that have 8 kinds, then the demodulation reference that the first layer data may be used Signal sequence is the 1st, 2,3,4, and the demodulated reference signal sequence that the second layer data may be used is the 5th, 6,7,8.Or The demodulated reference signal sequence that first layer data may be used is the 1st, 3,5,7, the demodulation ginseng that the second layer data may be used It is the 2nd, 4,6,8 to examine signal sequence.Or the demodulated reference signal sequence that may be used when transport layer information is first two layers For the 1st, 3,5,7, the demodulated reference signal sequence that may be used when transport layer information is latter two layers is the 2nd, 4,6,8. Only it is citing herein, the number of the sequence of specific demodulated reference signal can have other numerical value.And transport layer information and demodulation The correspondence of reference signal sequence can also have other modes, not limit herein.
After correspondence of the transport layer information with demodulated reference signal group is determined, first network side apparatus foundation should The correspondence of transport layer information and demodulated reference signal group determines the corresponding demodulation of transport layer that first network side apparatus uses Reference signal group.
Specifically, the correspondence of transport layer information and demodulated reference signal group is pair of transport layer and antenna port set When should be related to, first network side apparatus determines that first network side is set according to the correspondence of the transport layer and antenna port set The correspondence demodulated reference signal group of the standby transport layer used.The antenna port set is the demodulation that demodulated reference signal group includes The antenna port of reference signal.
For example, first network side apparatus is the first layer data using transport layer information, pass through transport layer information and antenna end Mouthful set correspondence, it may be determined that the antenna port set of the corresponding demodulated reference signal group of the first layer data be 7,8, 11、13}.Correspondingly, the second network side equipment is the second layer data using transport layer information, pass through transport layer information and antenna end Mouthful set correspondence, it may be determined that the antenna port set of the corresponding demodulated reference signal group of the second layer data be 9,10, 12、14}.For network side equipment in transmission data, first network side apparatus can be with the first layer data of default transport, the second network side The second layer data of equipment default transport.When terminal can be received more than 2 layer data, transport layer information corresponding solution when being first two layers It is { 7,8,11,13 } to adjust the antenna port set of reference signal group, and transport layer information corresponds to demodulated reference signal when being latter two layers The antenna port set of group is { 9,10,12,14 }, and at least one layer of in two layer datas before first network side apparatus default transport, It is at least one in two layer datas after second network side equipment default transport.The mode and rule specifically given tacit consent to, do not limit herein It is fixed.
In the correspondence of transport layer information and demodulated reference signal group is transport layer information and demodulated reference signal group When the correspondence of the pilot frequency design of demodulated reference signal or running time-frequency resource, first network side apparatus according to the transport layer information with The correspondence of the pilot frequency design of demodulated reference signal or running time-frequency resource in demodulated reference signal group determines first network side apparatus The correspondence demodulated reference signal group of the transport layer used.
By taking pilot frequency design as an example, when the first layer data of transport layer information that first network side apparatus uses, the transport layer pair The pilot frequency design of demodulated reference signal is the 1st to 4 kind in the demodulated reference signal group answered, the transmission that the second network side equipment uses When layer information is the second layer data, the pilot frequency design of demodulated reference signal is the in the corresponding demodulated reference signal group of the transport layer 5 to 8 kinds.First network side apparatus can be with the first layer data of default transport, second the second layer data of network side equipment default transport. When terminal can be received more than two layer datas, ginseng is demodulated in corresponding demodulated reference signal group when transport layer information is first two layers The pilot frequency design for examining signal is the 1st to 4 kind, demodulates ginseng in corresponding demodulated reference signal group when transport layer information is latter two layers The pilot frequency design for examining signal is the 5th to 8 kind, and at least one in two layer datas before first network side apparatus default transport, second It is at least one in two layer datas after network side equipment default transport.The mode and rule specifically given tacit consent to, do not limit herein.
In the correspondence of transport layer information and demodulated reference signal group is transport layer information and demodulated reference signal group When the correspondence of the demodulated reference signal sequence of demodulated reference signal, first network side apparatus is according to the transport layer information and solution The correspondence for adjusting the demodulated reference signal sequence of demodulated reference signal in reference signal group determines that first network side apparatus uses Transport layer correspondence demodulated reference signal group.
For example, when the transport layer information that first network side apparatus uses is the first layer data, the transport layer information is corresponding The demodulated reference signal sequence of demodulated reference signal is the 1st, 2,3,4 in demodulated reference signal group, and the second network side equipment makes When transport layer information is the second layer data, demodulated reference signal in the corresponding demodulated reference signal group of the transport layer information Demodulated reference signal sequence is the 5th, 6,7,8.First network side apparatus can be with the first layer data of default transport, the second network side The second layer data of equipment default transport.It is corresponding when transport layer information is first two layers when terminal can be received more than 2 layer data The demodulated reference signal sequence of demodulated reference signal is the 1st, 2,3,4 in demodulated reference signal group, after transport layer information is The demodulated reference signal sequence of demodulated reference signal is the 5th, 6,7,8 in corresponding demodulated reference signal group at two layers, and the It is at least one in two layers before one network side equipment default transport, it is at least one in two layers after the second network side equipment default transport. The mode and rule specifically given tacit consent to, do not limit herein.
First network side apparatus sends the solution after determining the corresponding demodulated reference signal group of the first information to terminal One or more of reference signal group demodulated reference signal is adjusted, to realize that different network side equipments uses orthogonal demodulation Reference signal.
Optionally, first network side apparatus is after determining the first information, that is to say, that first network side apparatus is true After having determined the cell ID of the cell of itself or the code word or transport layer information that itself use, first network side apparatus should The first information of first network side apparatus is sent to the second network side equipment, so that the second network side equipment determines the second network side The demodulated reference signal group that equipment uses so that the demodulated reference signal group that the second network side equipment uses is set with the second network side Standby difference realizes the orthogonal of the demodulated reference signal of transmission, ensure that terminal normally demodulates, and reduces signaling overheads.Or Predefined mode can also be used, first network side apparatus need not send first network side to the second network side equipment at this time The first information of equipment, first network side apparatus and the second network side equipment are according to predefined rule, it may be determined that respective Cell ID either code word or transport layer information, and ensure that respective demodulated reference signal is orthogonal, improve data demodulation Energy.
For the second network side equipment, the method for the data transmission of execution includes the following steps：Second network side is set The standby first information for receiving the first network side apparatus that first network side apparatus is sent, the first letter of the first network side apparatus The first information for ceasing second network side equipment is different；Second network side equipment is according to the first network side apparatus The first information determines the first information of the second network side equipment；Second network side equipment is according to second network side equipment The first information determine demodulated reference signal group；Second network side equipment is sent to terminal in the demodulated reference signal group One or more demodulated reference signals.
Second network side equipment determines the first letter of the second network side equipment according to the first information of first network side apparatus When breath, ensure the first information difference of the first information and the second network side equipment of first network side apparatus, for example, first When the first information of network side equipment is code word 1, the first information of the second network side equipment is code word 2.
And the second network side equipment specifically determines demodulated reference signal group according to the first information of the second network side equipment Mode the mode phase of demodulated reference signal group is determined according to the first information of first network side apparatus with first network side apparatus Together, in foregoing detailed description mistake, so details are not described herein.
For terminal device, data transmission method includes the following steps：Terminal receives first network side apparatus hair The first information for the second network side equipment that the first information of the first network side apparatus sent and the second network side equipment are sent； The first information of the first network side apparatus is different from the first information of the second network side equipment；The terminal is according to described The first information of one network side equipment determines the demodulated reference signal group that the first network side apparatus uses, and according to described The first information of second network side equipment determines the demodulated reference signal group that second network side equipment uses；The demodulation ginseng It includes one or more demodulated reference signals to examine signal group；The terminal is joined according to the demodulation that the first network side apparatus uses It examines one or more of signal group demodulated reference signal and demodulates the first part's number received from the first network side apparatus According to, and one or more of demodulated reference signal group for being used according to second network side equipment demodulated reference signal solution Adjust the second part data received from second network side equipment.
Terminal specifically determines that the demodulation that first network side apparatus uses is joined according to the first information of first network side apparatus It examines signal group and the demodulated reference signal that the second network side equipment uses is determined according to the first information of the second network side equipment The mode of group determines the mode of demodulated reference signal group with first network side apparatus according to the first information of first network side apparatus It is identical, in foregoing detailed description mistake, so details are not described herein.
The first information for the first network side apparatus that the terminal obtains can be also may be used for first network side apparatus transmission To be that the second network side equipment is sent or other network side equipments are sent, it is not limited thereto.Similarly, the terminal Obtain the second network side equipment the first information can be first network side apparatus send can also be that the second network side is set What preparation is sent or other network side equipments were sent, it is not limited thereto.
In another embodiment, first network side apparatus and/or the second network side equipment can not also send first to terminal Information, can both directly transmit the information of demodulated reference signal group, and specific way of example is not limited thereto.
Data demodulation, the content being well known to those skilled in the art, so herein not are carried out according to demodulated reference signal It repeats again.
In embodiments of the present invention, in order to support that the independent of network side equipment is dispatched in cooperation, different network side equipments It needs to use orthogonal demodulated reference signal group.A kind of possible mode is to be adopted demodulation by time domain and/or frequency domain resource Signal is grouped.For example, being grouped according to antenna port, it includes day to be specifically exemplified as the first demodulated reference signal group Line end mouth 7, the 8,11,13, second demodulated reference signal group include antenna port 9,10,12,14.In this case, network side Real-time interactive information is not needed between equipment, it is only necessary to interaction long-term information (the i.e. more stable rather than letter of real-time change Breath).In addition, different network side equipments can determine the demodulation respectively used ginseng by way of predefined or interaction Examine signal group.End side can also determine currently used demodulation reference by way of predefined or network side equipment notice Signal group.Another way is the information of implicit instruction demodulated reference signal group, for example different code words can correspond to difference Demodulated reference signal group, different network side equipments can determine that different code words are made according to predefined or interaction mode Demodulated reference signal group.End side can also be determined currently used by way of predefined or network side equipment notice Demodulated reference signal group.
There is foregoing description to can be seen that first network side apparatus and determines the demodulated reference signal used according to the first information Group so that the demodulated reference signal group that the demodulated reference signal group that first network side apparatus uses is used with the second network side equipment It is different, it is ensured that first network side apparatus and the second network side equipment use orthogonal demodulated reference signal, avoid the occurrence of because Different base stations use demodulated reference signal can not it is orthogonal caused by terminal demodulation ability difference problem.
After being divided into group demodulated reference signal, each network side equipment does not just have to real-time, interactive, according to grouping transmission data .If not being grouped to demodulated reference signal, each network side equipment wants the DMRS of real-time, interactive to be currently What kind of, to avoid clashing.The grouping situation of demodulated reference signal can negotiate between each network side equipment notice or Predefined distribution, this can be long-term, can also be it is point good after variation less, therefore can be to avoid caused by interaction time delay Performance loss.
Based on same inventive concept, the embodiment of the present invention also provides a kind of data transmission device (as shown in Figure 2), the device For realizing any one method in preceding method.
When the device is network side equipment, such as when aforementioned first network side apparatus, processor 10, for determining the first letter Breath, the first information are different from the first information used in the second network side equipment；And it is determined according to the first information Demodulated reference signal group；The demodulated reference signal group includes one or more demodulated reference signals；Transmitter 20 was used for end End sends one or more of demodulated reference signal group demodulated reference signal.
Optionally, the first information is the cell ID of the cell of the network side equipment；The processor 10 is specific For：Determine the corresponding demodulated reference signal group of the cell ID of the cell.
Optionally, the first information is the code word that network side equipment uses；The processor 10 is specifically used for：Determine institute State the corresponding demodulated reference signal group of code word.
Optionally, the processor 10 is specifically used for：According to the correspondence of code word and antenna port set, determine described in The corresponding demodulated reference signal group of code word, the antenna port in the antenna port set are to be wrapped in the demodulated reference signal group The antenna port of the demodulated reference signal included；And/or the pilot tone according to demodulated reference signal in code word and demodulated reference signal group The correspondence of pattern or running time-frequency resource determines the corresponding demodulated reference signal group of the code word；And/or according to code word and demodulation The correspondence of the demodulated reference signal sequence of demodulated reference signal in reference signal group determines the corresponding demodulation ginseng of the code word Examine signal group.
Optionally, the first information is the transport layer that network side equipment uses；The processor 10 is specifically used for：It determines The corresponding demodulated reference signal group of the transport layer.
Optionally, the processor 10 is specifically used for：According to the correspondence of transport layer information and antenna port set, really Determine the corresponding demodulated reference signal group of the transport layer, the antenna port in the antenna port set is that the demodulation reference is believed The antenna port for the demodulated reference signal that number group includes；And/or it is demodulated with demodulated reference signal group according to transport layer information The pilot frequency design of reference signal or the correspondence of running time-frequency resource determine the corresponding demodulated reference signal group of the transport layer；With/ Or the correspondence according to the demodulated reference signal sequence of demodulated reference signal in transport layer information and demodulated reference signal group, really Determine the corresponding demodulated reference signal group of the transport layer.
Optionally, the transmitter 20 is additionally operable to：The first information is sent to second network side equipment, so that described the Two network side equipments determine the demodulated reference signal group that second network side equipment uses.
Optionally, the transmitter 20 is additionally operable to：Instruction information, the instruction letter are sent to second network side equipment Breath is used to indicate the demodulated reference signal group that the first network side apparatus uses and/or is used to indicate second network side and sets The standby demodulated reference signal group used.
Optionally, the transmitter 20 is additionally operable to：The first information of the first network side apparatus is sent to the terminal, So that the terminal determines the demodulated reference signal group that the first network side apparatus uses.
When the device is another network side equipment, such as when the second network side equipment above-mentioned, receiver 30, for connecing Receive the first information for the first network side apparatus that first network side apparatus is sent, the first information institute of the first network side apparatus The first information for stating network side equipment is different；Processor 10, the first information for first network side apparatus determine that network side is set The standby first information；And demodulated reference signal group is determined according to the first information of the network side equipment；Transmitter 20, is used for One or more of demodulated reference signal group demodulated reference signal is sent to terminal.
Optionally, the receiver 30 is additionally operable to：Receive the instruction information that the first network side apparatus is sent, the finger Show that information is used to indicate the demodulated reference signal group that the first network side apparatus uses and/or is used to indicate the network side to set The standby demodulated reference signal group used.
Optionally, the first information of the network side equipment is the cell ID of the cell of the network side equipment；It is described Processor 10 is specifically used for：Determine the corresponding demodulated reference signal group of the cell ID of the cell of the network side equipment.
Optionally, the first information of the network side equipment is the code word that network side equipment uses；The processor 10 has Body is used for：Determine the corresponding demodulated reference signal group of the code word.
Optionally, the processor 10 is specifically used for：According to the correspondence of code word and antenna port set, determine described in The corresponding demodulated reference signal group of code word, the antenna port in the antenna port set are to be wrapped in the demodulated reference signal group The antenna port of the demodulated reference signal included；And/or the pilot tone according to demodulated reference signal in code word and demodulated reference signal group The correspondence of pattern or running time-frequency resource determines the corresponding demodulated reference signal group of the code word；And/or according to code word and demodulation The correspondence of the demodulated reference signal sequence of demodulated reference signal in reference signal group determines the corresponding demodulation ginseng of the code word Examine signal group.
Optionally, the first information of the network side equipment is the transport layer that network side equipment uses；The processor 10 It is specifically used for：Determine the corresponding demodulated reference signal group of the transport layer.
Optionally, the processor 10 is specifically used for：According to the correspondence of transport layer information and antenna port set, really Determine the corresponding demodulated reference signal group of the transport layer, the antenna port in the antenna port set is that the demodulation reference is believed The antenna port for the demodulated reference signal that number group includes；And/or it is demodulated with demodulated reference signal group according to transport layer information The pilot frequency design of reference signal or the correspondence of running time-frequency resource determine the corresponding demodulated reference signal group of the transport layer；With/ Or the correspondence according to the demodulated reference signal sequence of demodulated reference signal in transport layer information and demodulated reference signal group, really Determine the corresponding demodulated reference signal group of the transport layer.
Optionally, the transmitter 20 is additionally operable to：The first information of second network side equipment is sent to the terminal, So that the terminal determines the demodulated reference signal group that second network side equipment uses.
When the device is terminal device, receiver 30, the first network side for receiving the transmission of first network side apparatus The first information for the second network side equipment that the first information of equipment and the second network side equipment are sent；The first network side The first information of equipment is different from the first information of the second network side equipment；Processor 10, for according to the first network side The first information of equipment determines the demodulated reference signal group that the first network side apparatus uses, and according to second network The first information of side apparatus determines the demodulated reference signal group that second network side equipment uses；The demodulated reference signal group Including one or more demodulated reference signals；And in the demodulated reference signal group used according to the first network side apparatus One or more demodulated reference signals demodulate the first part's data received from the first network side apparatus, and according to institute The demodulation of one or more of the demodulated reference signal group that the second network side equipment uses demodulated reference signal is stated from described second The second part data that network side equipment receives.
Optionally, the first information of the first network side apparatus is the cell mark of the cell of the first network side apparatus Know；The processor 10 is specifically used for：Determine the corresponding demodulation of the cell ID of the cell of the first network side apparatus Reference signal group.
Optionally, the first information of the first network side apparatus is the code word that first network side apparatus uses；The place Reason device 10 is specifically used for：Determine the corresponding demodulated reference signal group of code word that the first network side apparatus uses.
Optionally, the processor 10 is specifically used for：According to the correspondence of code word and antenna port set, determine described in The corresponding demodulated reference signal group of code word that first network side apparatus uses, the antenna port in the antenna port set is institute State the antenna port for the demodulated reference signal that demodulated reference signal group includes；And/or according to code word and demodulated reference signal group The pilot frequency design of middle demodulated reference signal or the correspondence of running time-frequency resource determine the code word that the first network side apparatus uses Corresponding demodulated reference signal group；And/or believed according to the demodulation reference of demodulated reference signal in code word and demodulated reference signal group The correspondence of number sequence, determines the corresponding demodulated reference signal group of code word that the first network side apparatus uses.
Optionally, the first information of the first network side apparatus is the transport layer information that first network side apparatus uses； The processor 10 is specifically used for：Determine the corresponding demodulated reference signal of transport layer information that the first network side apparatus uses Group.
Optionally, the processor 10 is specifically used for：According to the correspondence of transport layer information and antenna port set, really The corresponding demodulated reference signal group of transport layer information that the fixed first network side apparatus uses, in the antenna port set Antenna port is the antenna port for the demodulated reference signal that the demodulated reference signal group includes；And/or believed according to transport layer Breath and the pilot frequency design of demodulated reference signal or the correspondence of running time-frequency resource in demodulated reference signal group, determine first net The corresponding demodulated reference signal group of transport layer information that network side apparatus uses；And/or believed according to transport layer information and demodulation reference The correspondence of the demodulated reference signal sequence of demodulated reference signal, determines the biography that the first network side apparatus uses in number group The corresponding demodulated reference signal group of defeated layer information.
Optionally, the first information of second network side equipment is the cell mark of the cell of second network side equipment Know；The processor 10 is specifically used for：Determine the corresponding demodulation reference of cell ID of the cell of second network side equipment Signal group.
Optionally, the first information of second network side equipment is the code word that the second network side equipment uses；The place Reason device 10 is specifically used for：Determine the corresponding demodulated reference signal group of code word that second network side equipment uses.
Optionally, the processor 10 is specifically used for：According to the correspondence of code word and antenna port set, determine described in The corresponding demodulated reference signal group of code word that second network side equipment uses, the antenna port in the antenna port set is institute State the antenna port for the demodulated reference signal that demodulated reference signal group includes；And/or according to code word and demodulated reference signal group The pilot frequency design of middle demodulated reference signal or the correspondence of running time-frequency resource determine the code word that second network side equipment uses Corresponding demodulated reference signal group；And/or believed according to the demodulation reference of demodulated reference signal in code word and demodulated reference signal group The correspondence of number sequence, determines the corresponding demodulated reference signal group of code word that second network side equipment uses.
Optionally, the first information of second network side equipment is the transport layer information that the second network side equipment uses； The processor 10 is specifically used for：Determine the corresponding demodulated reference signal of transport layer information that second network side equipment uses Group.
Optionally, the processor 10 is specifically used for：According to the correspondence of transport layer information and antenna port set, really The corresponding demodulated reference signal group of transport layer information that fixed second network side equipment uses, in the antenna port set Antenna port is the antenna port for the demodulated reference signal that the demodulated reference signal group includes；And/or believed according to transport layer Breath and the pilot frequency design of demodulated reference signal or the correspondence of running time-frequency resource in demodulated reference signal group, determine second net The corresponding demodulated reference signal group of transport layer information that network side apparatus uses；And/or believed according to transport layer information and demodulation reference The correspondence of the demodulated reference signal sequence of demodulated reference signal, determines the biography that second network side equipment uses in number group The corresponding demodulated reference signal group of defeated layer information.
Optionally, the receiver 30 is additionally operable to：Receive the instruction information that the first network side apparatus is sent, the finger Show that information is used to indicate the demodulated reference signal group that the first network side apparatus uses and/or is used to indicate second network The demodulated reference signal group that side apparatus uses.
Based on same inventive concept, the embodiment of the present invention also provides a kind of data transmission device, the data transmission device packet Include the function module for executing aforementioned method steps.
Various change mode and specific example in data transmission method in previous embodiment are equally applicable to this implementation Device in the data transmission device and Fig. 2 of example, passes through the aforementioned detailed description to data transmission method, people in the art Member is clear that the implementation of data transmission device and the device in Fig. 2 in the present embodiment, so in order to illustrate Book it is succinct, this will not be detailed here.
It should be understood by those skilled in the art that, the embodiment of the present invention can be provided as method, system or computer program production Product.Therefore, in terms of the embodiment of the present invention can be used complete hardware embodiment, complete software embodiment or combine software and hardware Embodiment form.Moreover, it wherein includes computer available programs generation that the embodiment of the present invention, which can be used in one or more, The meter implemented in the computer-usable storage medium (including but not limited to magnetic disk storage, CD-ROM, optical memory etc.) of code The form of calculation machine program product.
The embodiment of the present invention be with reference to according to the method for the embodiment of the present invention, equipment (system) and computer program product Flowchart and/or the block diagram describe.It should be understood that can be realized by computer program instructions in flowchart and/or the block diagram The combination of flow and/or box in each flow and/or block and flowchart and/or the block diagram.These calculating can be provided Processing of the machine program instruction to all-purpose computer, special purpose computer, Embedded Processor or other programmable data processing devices Device is to generate a machine so that the instruction executed by computer or the processor of other programmable data processing devices generates For realizing the function of being specified in one flow of flow chart or multiple flows and/or one box of block diagram or multiple boxes Device.
These computer program instructions, which may also be stored in, can guide computer or other programmable data processing devices with spy Determine in the computer-readable memory that mode works so that instruction generation stored in the computer readable memory includes referring to Enable the manufacture of device, the command device realize in one flow of flow chart or multiple flows and/or one box of block diagram or The function of being specified in multiple boxes.
These computer program instructions also can be loaded onto a computer or other programmable data processing device so that count Series of operation steps are executed on calculation machine or other programmable devices to generate computer implemented processing, in computer or The instruction executed on other programmable devices is provided for realizing in one flow of flow chart or multiple flows and/or block diagram one The step of function of being specified in a box or multiple boxes.
Obviously, those skilled in the art can carry out the embodiment of the present invention various modification and variations without departing from this Shen Spirit and scope please.In this way, if these modifications and variations of the embodiment of the present invention belong to the application claim and its wait Within the scope of technology, then the application is also intended to include these modifications and variations.

Claims (32)

1. a kind of method of data transmission, which is characterized in that this method includes：
First network side apparatus determines the first information, and the first information used in the first information and the second network side equipment is not Together；
The first network side apparatus determines demodulated reference signal group according to the first information；The demodulated reference signal group packet Include one or more demodulated reference signals；
The first network side apparatus sends one or more of demodulated reference signal group demodulated reference signal to terminal.
2. the method as described in claim 1, which is characterized in that the first information is the cell of the first network side apparatus Cell ID；
The first network side apparatus determines demodulated reference signal group according to the first information, including：
The first network side apparatus determines the corresponding demodulated reference signal group of the cell ID of the cell.
3. the method as described in claim 1, which is characterized in that the first information is the code that first network side apparatus uses Word；
The first network side apparatus determines demodulated reference signal group according to the first information, including：
The first network side apparatus determines the corresponding demodulated reference signal group of the code word.
4. method as claimed in claim 3, which is characterized in that the first network side apparatus determines the corresponding solution of the code word Reference signal group is adjusted, including：
The first network side apparatus determines the corresponding demodulation of the code word according to the correspondence of code word and antenna port set Reference signal group, the antenna port in the antenna port set are the demodulation reference letter that the demodulated reference signal group includes Number antenna port；And/or
The first network side apparatus is according to the pilot frequency design or time-frequency of demodulated reference signal in code word and demodulated reference signal group The correspondence of resource determines the corresponding demodulated reference signal group of the code word；And/or
The first network side apparatus is according to the demodulated reference signal sequence of demodulated reference signal in code word and demodulated reference signal group The correspondence of row determines the corresponding demodulated reference signal group of the code word.
5. the method as described in claim 1, which is characterized in that the first information is the transmission that first network side apparatus uses Layer information；
The first network side apparatus determines demodulated reference signal group according to the first information, including：
The first network side apparatus determines the corresponding demodulated reference signal group of the transport layer information.
6. method as claimed in claim 5, which is characterized in that the first network side apparatus determines the transport layer information pair The demodulated reference signal group answered, including：
The first network side apparatus determines the transport layer letter according to the correspondence of transport layer information and antenna port set Corresponding demodulated reference signal group is ceased, the antenna port in the antenna port set is that the demodulated reference signal group includes Demodulated reference signal antenna port；And/or
The first network side apparatus is according to the pilot frequency design of demodulated reference signal in transport layer information and demodulated reference signal group Or the correspondence of running time-frequency resource, determine the corresponding demodulated reference signal group of the transport layer information；And/or
The first network side apparatus is according to the demodulation reference of demodulated reference signal in transport layer information and demodulated reference signal group The correspondence of signal sequence determines the corresponding demodulated reference signal group of the transport layer information.
7. such as claim 1 to 6 any one of them method, which is characterized in that the first network side apparatus determines the first letter It ceases, further includes：
The first network side apparatus sends the first information to second network side equipment, so that second network side equipment Determine the demodulated reference signal group that second network side equipment uses.
8. method as described in any one of claim 1 to 7, which is characterized in that the first network side apparatus is according to described One information determines demodulated reference signal group, further includes：
The first network side apparatus sends instruction information, the instruction to second network side equipment and/or the terminal Information is used to indicate the demodulated reference signal group that the first network side apparatus uses and/or is used to indicate second network side The demodulated reference signal group that equipment uses.
9. such as claim 1 to 8 any one of them method, which is characterized in that determine first in the first network side apparatus After information, further include：
The first network side apparatus sends the first information of the first network side apparatus to the terminal, so that the terminal Determine the demodulated reference signal group that the first network side apparatus uses.
10. a kind of method of data transmission, which is characterized in that this method includes：
Second network side equipment receives the first information for the first network side apparatus that first network side apparatus is sent, first net The first information of second network side equipment described in the first information of network side apparatus is different；
Second network side equipment determines the of the second network side equipment according to the first information of the first network side apparatus One information；
Second network side equipment determines demodulated reference signal group according to the first information of second network side equipment；
Second network side equipment sends one or more of demodulated reference signal group demodulated reference signal to terminal.
11. method as claimed in claim 10, which is characterized in that further include：
Second network side equipment receives the instruction information that the first network side apparatus is sent, and the instruction information is for referring to Show the demodulated reference signal group and/or be used to indicate what second network side equipment used that the first network side apparatus uses Demodulated reference signal group.
12. method as claimed in claim 10, which is characterized in that the first information of second network side equipment is described the The cell ID of the cell of two network side equipments；
Second network side equipment determines demodulated reference signal group according to the first information of second network side equipment, packet It includes：
Second network side equipment determines the corresponding demodulation reference letter of the cell ID of the cell of second network side equipment Number group.
13. method as claimed in claim 10, which is characterized in that the first information of second network side equipment is the second net The code word that network side apparatus uses；
Second network side equipment determines demodulated reference signal group according to the first information of second network side equipment, packet It includes：
Second network side equipment determines the corresponding demodulated reference signal group of the code word.
14. method as claimed in claim 13, which is characterized in that second network side equipment determines that the code word is corresponding Demodulated reference signal group, including：
Second network side equipment determines the corresponding demodulation of the code word according to the correspondence of code word and antenna port set Reference signal group, the antenna port in the antenna port set are the demodulation reference letter that the demodulated reference signal group includes Number antenna port；And/or
Second network side equipment is according to the pilot frequency design or time-frequency of demodulated reference signal in code word and demodulated reference signal group The correspondence of resource determines the corresponding demodulated reference signal group of the code word；And/or
Second network side equipment is according to the demodulated reference signal sequence of demodulated reference signal in code word and demodulated reference signal group The correspondence of row determines the corresponding demodulated reference signal group of the code word.
15. method as claimed in claim 10, which is characterized in that the first information of second network side equipment is the second net The transport layer information that network side apparatus uses；
Second network side equipment determines demodulated reference signal group according to the first information of second network side equipment, packet It includes：
Second network side equipment determines the corresponding demodulated reference signal group of the transport layer information.
16. method as claimed in claim 15, which is characterized in that second network side equipment determines the transport layer information Corresponding demodulated reference signal group, including：
Second network side equipment determines the transport layer letter according to the correspondence of transport layer information and antenna port set Corresponding demodulated reference signal group is ceased, the antenna port in the antenna port set is that the demodulated reference signal group includes Demodulated reference signal antenna port；And/or
Second network side equipment is according to the pilot frequency design of demodulated reference signal in transport layer information and demodulated reference signal group Or the correspondence of running time-frequency resource, determine the corresponding demodulated reference signal group of the transport layer information；And/or
Second network side equipment is according to the demodulation reference of demodulated reference signal in transport layer information and demodulated reference signal group The correspondence of signal sequence determines the corresponding demodulated reference signal group of the transport layer information.
17. such as claim 10 to 16 any one of them method, which is characterized in that in second network side equipment according to institute State first network side apparatus the first information determine the first information of the second network side equipment after, further include：
Second network side equipment sends the first information of second network side equipment to the terminal, so that the terminal Determine the demodulated reference signal group that second network side equipment uses.
18. a kind of method of data transmission, which is characterized in that this method includes：
Terminal receives the first information and the second network side equipment hair for the first network side apparatus that first network side apparatus is sent The first information of the second network side equipment sent；The first information of the first network side apparatus and the of the second network side equipment One information is different；
The terminal determines the demodulation that the first network side apparatus uses according to the first information of the first network side apparatus Reference signal group, and the solution that second network side equipment uses is determined according to the first information of second network side equipment Adjust reference signal group；The demodulated reference signal group includes one or more demodulated reference signals；
One or more of the demodulated reference signal group that the terminal is used according to first network side apparatus demodulation reference Signal demodulates the first part's data received from the first network side apparatus, and is made according to second network side equipment The demodulation of one or more of demodulated reference signal group demodulated reference signal is received from second network side equipment Second part data.
19. method as claimed in claim 18, which is characterized in that the first information of the first network side apparatus is described the The cell ID of the cell of one network side equipment；
The demodulation reference that first network side apparatus uses described in the first information of the terminal according to the first network side apparatus Signal group, including：
The terminal determines the corresponding demodulated reference signal group of the cell ID of the cell of the first network side apparatus.
20. method as claimed in claim 18, which is characterized in that the first information of the first network side apparatus is the first net The code word that network side apparatus uses；
The terminal determines the demodulation that the first network side apparatus uses according to the first information of the first network side apparatus Reference signal group, including：
The terminal determines the corresponding demodulated reference signal group of code word that the first network side apparatus uses.
21. method as claimed in claim 20, which is characterized in that the terminal determines what the first network side apparatus used The corresponding demodulated reference signal group of code word, including：
The terminal determines the code word that the first network side apparatus uses according to the correspondence of code word and antenna port set Corresponding demodulated reference signal group, the antenna port demodulated reference signal group in the antenna port set include The antenna port of demodulated reference signal；And/or
The terminal is corresponding according to code word and the pilot frequency design of demodulated reference signal in demodulated reference signal group or running time-frequency resource Relationship determines the corresponding demodulated reference signal group of code word that the first network side apparatus uses；And/or
Corresponding the closing of terminal demodulated reference signal sequence of demodulated reference signal according to code word and in demodulated reference signal group System, determines the corresponding demodulated reference signal group of code word that the first network side apparatus uses.
22. method as claimed in claim 18, which is characterized in that the first information of the first network side apparatus is the first net The transport layer information that network side apparatus uses；
The terminal determines the demodulation that the first network side apparatus uses according to the first information of the first network side apparatus Reference signal group, including：
The terminal determines the corresponding demodulated reference signal group of transport layer information that the first network side apparatus uses.
23. method as claimed in claim 22, which is characterized in that the terminal determines what the first network side apparatus used The corresponding demodulated reference signal group of transport layer information, including：
The terminal determines that the first network side apparatus uses according to the correspondence of transport layer information and antenna port set The corresponding demodulated reference signal group of transport layer information, the antenna port in the antenna port set is demodulation reference letter The antenna port for the demodulated reference signal that number group includes；And/or
The terminal is according to the pilot frequency design or running time-frequency resource of demodulated reference signal in transport layer information and demodulated reference signal group Correspondence, determine the corresponding demodulated reference signal group of transport layer information that the first network side apparatus uses；And/or
The terminal is according to the demodulated reference signal sequence of demodulated reference signal in transport layer information and demodulated reference signal group Correspondence determines the corresponding demodulated reference signal group of transport layer information that the first network side apparatus uses.
24. such as claim 18 to 23 any one of them method, which is characterized in that the first letter of second network side equipment Breath is the cell ID of the cell of second network side equipment；
The terminal determines the demodulation that second network side equipment uses according to the first information of second network side equipment Reference signal group, including：
The terminal determines the corresponding demodulated reference signal group of the cell ID of the cell of second network side equipment.
25. such as claim 18 to 24 any one of them method, which is characterized in that the first letter of second network side equipment Breath is the code word that the second network side equipment uses；
The terminal determines the demodulation that second network side equipment uses according to the first information of second network side equipment Reference signal group, including：
The terminal determines the corresponding demodulated reference signal group of code word that second network side equipment uses.
26. method as claimed in claim 25, which is characterized in that second network side equipment determines second network side The corresponding demodulated reference signal group of code word that equipment uses, including：
The terminal determines the code word that second network side equipment uses according to the correspondence of code word and antenna port set Corresponding demodulated reference signal group, the antenna port demodulated reference signal group in the antenna port set include The antenna port of demodulated reference signal；And/or
The terminal is corresponding according to code word and the pilot frequency design of demodulated reference signal in demodulated reference signal group or running time-frequency resource Relationship determines the corresponding demodulated reference signal group of code word that second network side equipment uses；And/or
Corresponding the closing of terminal demodulated reference signal sequence of demodulated reference signal according to code word and in demodulated reference signal group System, determines the corresponding demodulated reference signal group of code word that second network side equipment uses.
27. such as claim 18 to 26 any one of them method, which is characterized in that the first letter of second network side equipment Breath is the transport layer information that the second network side equipment uses；
The terminal determines the demodulation that second network side equipment uses according to the first information of second network side equipment Reference signal group, including：
The terminal determines the corresponding demodulated reference signal group of transport layer information that second network side equipment uses.
28. method as claimed in claim 27, which is characterized in that second network side equipment determines second network side The corresponding demodulated reference signal group of transport layer information that equipment uses, including：
The terminal determines that second network side equipment uses according to the correspondence of transport layer information and antenna port set The corresponding demodulated reference signal group of transport layer information, the antenna port in the antenna port set is demodulation reference letter The antenna port for the demodulated reference signal that number group includes；And/or
The terminal is according to the pilot frequency design or running time-frequency resource of demodulated reference signal in transport layer information and demodulated reference signal group Correspondence, determine the corresponding demodulated reference signal group of transport layer information that second network side equipment uses；And/or
The terminal is according to the demodulated reference signal sequence of demodulated reference signal in transport layer information and demodulated reference signal group Correspondence determines the corresponding demodulated reference signal group of transport layer information that second network side equipment uses.
29. such as claim 18 to 28 any one of them method, which is characterized in that further include：
The terminal receives the instruction information that the first network side apparatus is sent, and the instruction information is used to indicate described first The demodulated reference signal group and/or be used to indicate the demodulation reference letter that second network side equipment uses that network side equipment uses Number group.
30. a kind of network side equipment, which is characterized in that including：
Processor, for determining that the first information, the first information are different from the first information used in the second network side equipment； And demodulated reference signal group is determined according to the first information；The demodulated reference signal group includes that one or more demodulation are joined Examine signal；
Transmitter, for sending one or more of demodulated reference signal group demodulated reference signal to terminal.
31. a kind of network side equipment, which is characterized in that including：
Receiver, the first information of the first network side apparatus for receiving the transmission of first network side apparatus, the first network The first information of network side equipment described in the first information of side apparatus is different；
Processor, the first information for determining network side equipment according to the first information of the first network side apparatus；And Demodulated reference signal group is determined according to the first information of the network side equipment；
Transmitter, for sending one or more of demodulated reference signal group demodulated reference signal to terminal.
32. a kind of terminal device, which is characterized in that including：
Receiver, the first information and the second network side of the first network side apparatus for receiving the transmission of first network side apparatus The first information for the second network side equipment that equipment is sent；The first information of the first network side apparatus is set with the second network side The standby first information is different；
Processor, for determining solution that the first network side apparatus uses according to the first information of the first network side apparatus Reference signal group is adjusted, and determines what second network side equipment used according to the first information of second network side equipment Demodulated reference signal group；The demodulated reference signal group includes one or more demodulated reference signals；And according to described first One or more of the demodulated reference signal group that network side equipment uses demodulated reference signal is demodulated from the first network side One in first part's data that equipment receives, and the demodulated reference signal group that is used according to second network side equipment A or multiple demodulated reference signals demodulate the second part data received from second network side equipment.
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110958202A (en) * 2018-09-26 2020-04-03 维沃移动通信有限公司 Reference signal scrambling method and device
CN112398620A (en) * 2019-08-16 2021-02-23 华为技术有限公司 Reference signal indicating method and device

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102427396A (en) * 2011-08-15 2012-04-25 中兴通讯股份有限公司 Information interaction method for inter-cell uplink demodulation reference signal (DMRS) and base station
WO2014112748A1 (en) * 2013-01-18 2014-07-24 엘지전자 주식회사 Method for reception in cooperative transmission environment and terminal
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 (en) * 2011-08-15 2012-04-25 中兴通讯股份有限公司 Information interaction method for inter-cell uplink demodulation reference signal (DMRS) and base station
WO2014112748A1 (en) * 2013-01-18 2014-07-24 엘지전자 주식회사 Method for reception in cooperative transmission environment and terminal
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》 *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110958202A (en) * 2018-09-26 2020-04-03 维沃移动通信有限公司 Reference signal scrambling method and device
CN110958202B (en) * 2018-09-26 2022-04-01 维沃移动通信有限公司 Reference signal scrambling method and device
CN112398620A (en) * 2019-08-16 2021-02-23 华为技术有限公司 Reference signal indicating method and device
CN112398620B (en) * 2019-08-16 2022-04-12 华为技术有限公司 Reference signal indicating method and device

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