WO2017193942A1 - 一种信息传输方法、装置及存储介质 - Google Patents

一种信息传输方法、装置及存储介质 Download PDF

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Publication number
WO2017193942A1
WO2017193942A1 PCT/CN2017/083820 CN2017083820W WO2017193942A1 WO 2017193942 A1 WO2017193942 A1 WO 2017193942A1 CN 2017083820 W CN2017083820 W CN 2017083820W WO 2017193942 A1 WO2017193942 A1 WO 2017193942A1
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Prior art keywords
dmrs port
port number
terminal
target terminal
target
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PCT/CN2017/083820
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English (en)
French (fr)
Inventor
杨勋
戴博
戴建强
Original Assignee
中兴通讯股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Priority claimed from CN201610965396.2A external-priority patent/CN107371254B/zh
Application filed by 中兴通讯股份有限公司 filed Critical 中兴通讯股份有限公司
Priority to US16/301,164 priority Critical patent/US10728904B2/en
Priority to EP17795560.6A priority patent/EP3457780B1/en
Publication of WO2017193942A1 publication Critical patent/WO2017193942A1/zh

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/04Wireless resource allocation

Definitions

  • the present invention relates to the field of wireless communication technologies, and in particular, to an information transmission method, apparatus, and storage medium.
  • Non-Orthogonal Multiple Access is one of the key technologies for the fifth generation of mobile communication technology (5G, 5th-Generation). It has significant advantages in improving spectral efficiency.
  • the principle of NOMA is to transmit.
  • the side performs multi-user information superimposition coding, and the receiving side uses Serial Interference Cancellation (SIC).
  • SIC Serial Interference Cancellation
  • Multi-user Superposition Transmission based on NOMA technology is an important part of 3GPP research in the international standard organization. In the research, it is found that the receiving terminal obtains the necessary known information as much as possible. It is critical that the receiver eliminates interference and improves the correct demodulation rate. However, the existing Physical Downlink Control Channel (PDCCH) control signaling does not effectively indicate the MUST parameter, which brings difficulties to the performance improvement of the MUST system.
  • PDCCH Physical Downlink Control Channel
  • embodiments of the present invention are directed to providing an information transmission method, apparatus, and storage medium, which at least solve the problems in the prior art, and enable the target terminal to receive information required to eliminate interference with less overhead.
  • the interference cancellation performance of the MUST system is effectively improved while maintaining little influence on the existing Long Term Evolution (LTE) signaling.
  • LTE Long Term Evolution
  • An embodiment of the present invention provides an information transmission method, where the method includes:
  • the indication information includes at least one of the following:
  • DMRS Demodulation Reference Signal
  • rank used by the interference signal
  • precoding information used by the interference signal and physical resource block used by the multiuser superimposed transmission MUST (PRB, Physical) Resource Block)
  • PRB Physical Resource Block
  • the indication information includes the following information:
  • Interference presence identifier identifier
  • modulation order of the interference signal coding domain information of the port, the IDID, and the number of layers.
  • the port is a DMRS port used by the interference terminal
  • the scrambling code ID is a scrambling code ID used by the interference signal
  • the number of layers is the number of layers of the interference signal data.
  • the modulation presence of the interference presence indicator and the interference signal is indicated by joint coding.
  • the interference presence identifier and the port, the scrambling code ID, and the number of layers are indicated by joint coding.
  • the DMRS port information of the target terminal and the DMRS port information of the interfering terminal are jointly indicated by one signaling.
  • the DMRS port information of the target terminal is indicated by one signaling
  • the DMRS port information of the interference terminal is indicated by one signaling
  • the number of layers of the target signal data is 1; the number of layers of the interference signal data is 1.
  • the scrambling code IDs of the target terminal and the interfering terminal are set to be the same or different.
  • a set is predefined, and the elements of the set are physical downlink shared channel (PDSCH) power parameters.
  • the PDSCH power parameter is a first type of PDSCH power parameter or a second type of PDSCH power parameter.
  • the downlink type control information (DCI, Downlink Control Information) is used to indicate that the first type of PDSCH power parameter or the second type of PDSCH power parameter is selected, and the transmit power is determined according to the PDSCH power parameter.
  • the PDSCH power parameter represents the power of the synthesized symbol or the power of the component symbol of the synthesized symbol.
  • a calculation mode is indicated by DCI, a PDSCH power parameter is calculated according to the indicated calculation manner, and a transmit power is determined according to the calculated PDSCH power parameter.
  • a domain is defined in the DCI, and the cost is 1 bit.
  • the PDSCH power parameter is obtained by using the first calculation manner.
  • the second calculation mode is used to obtain the PDSCH power parameter.
  • the PDSCH power parameter may take -6dB, -3dB, 0dB, 1dB, 2dB, 3dB.
  • the calculation manner includes: a first type of calculation manner: obtaining the PDSCH power parameter based on a PDSCH power of the synthesized symbol, and a second type of calculation manner: obtaining the PDSCH power parameter based on a power of a component symbol of the synthesized symbol .
  • the precoding information used by the interference signal is: a Precoding Matrix Indicator (PMI) used by the interference signal, or a storage sequence number of the PMI used by the interference signal; and the PMI used by the interference signal is non-negative An integer; the storage sequence number of the PMI used by the interference signal is a non-negative integer.
  • PMI Precoding Matrix Indicator
  • the indication information includes a storage sequence number of a PMI used by the interference signal
  • the obtaining the indication information for the target terminal includes:
  • the first information comparison table is searched for, and the storage sequence number of the PMI used for the interference signal is obtained.
  • the data transmission manner includes: a MUST mode and a non-MUST mode.
  • the data transmission mode is a MUST mode
  • the PRB granularity used by the MUST includes three types: full bandwidth, predefined subband, and custom PRB granularity.
  • the method further includes:
  • the data transmission mode is MUST, determining, according to a predetermined criterion, that the DMRS port number used by the target terminal is a first port number, and the DMRS port number used by the interference terminal is a second port number, based on the foregoing a port number and the second port number for data transmission;
  • the DMRS port number used by the target terminal is in one-to-one correspondence with the DMRS port number used by the interfering terminal.
  • the determining, according to a predetermined criterion, that the DMRS port number used by the target terminal is the first port number, and the DMRS port number used by the interfering terminal is the second port number including:
  • the DMRS port number used by the target terminal is determined to be 7 according to a predetermined criterion, and the DMRS port number used by the interfering terminal is 8;
  • the DMRS port numbers used by the target terminal are determined to be 7 and 8 according to a predetermined criterion, and the DMRS port numbers used by the interfering terminal are 7 and 8;
  • the DMRS port number used by the target terminal is determined to be 7 and 8 according to a predetermined criterion, and the DMRS port used by the interfering terminal is used.
  • the serial number is 7;
  • An embodiment of the present invention further provides an information transmission method, where the method includes:
  • Interference cancellation is performed based on the indication information when data reception of multi-user overlay is performed.
  • the receiving side obtains the PDSCH power parameter according to the DCI, and demodulates the received data according to the obtained PDSCH power parameter.
  • the receiving side obtains a calculation manner according to the DCI, and further calculates a PDSCH power parameter based on the calculation manner, and demodulates the received data according to the calculated PDSCH power parameter.
  • the indication information includes a storage sequence number of a PMI used by the interference signal
  • the method further includes:
  • the first information comparison table is searched for, and the PMI used for the interference signal is obtained.
  • the first information comparison table represents a correspondence between a PMI used by the target signal and a PMI used by the interference signal; the corresponding relationship is used according to the codeword and the interference signal indicated by the PMI used by the target signal. The angle between the code words indicated by the PMI is determined.
  • the indication information includes: a data transmission mode and a DMRS port number used by the target terminal; wherein the data transmission mode is a MUST mode;
  • the method further includes:
  • the embodiment of the present invention further provides an information transmission device, where the device is located at a base station, and the device includes: an acquisition module and a sending module;
  • the obtaining module is configured to obtain indication information for the target terminal
  • the sending module is configured to send the indication information to the target terminal, so that the target terminal performs interference information elimination based on the indication information when performing data reception of multi-user overlay.
  • the indication information includes at least one of the following:
  • DMRS port number used by interfering terminal rank used by interference signal, precoding information used by interference signal, physical resource block PRB granularity used by multiuser superimposed transmission MUST, number of layers of target signal data, and interfered target The sequence number of the layer where the signal data is located.
  • the indication information includes the following information:
  • Interference presence identifier modulation order of the interference signal
  • modulation order of the interference signal joint coding domain information of the port, the scrambling code ID, and the number of layers.
  • the port is a DMRS port used by the interference terminal, and the scrambling code ID It is the scrambling code ID used by the interference signal, and the number of layers is the number of layers of the interference signal data.
  • the interference presence indicator and the modulation order used by the interference signal are indicated by joint coding.
  • the interference presence identifier and the port, the scrambling code ID, and the number of layers are indicated by joint coding.
  • the number of layers of the target signal data is 1; the number of layers of the interference signal data is 1.
  • the scrambling code IDs of the target terminal and the interfering terminal are set to be the same.
  • the precoding information used by the interference signal is: a PMI used by the interference signal, or a storage sequence number of the PMI used by the interference signal; a PMI used by the interference signal is a non-negative integer; and the PMI used by the interference signal The storage sequence number is a non-negative integer.
  • a set is predefined, and the elements of the set are PDSCH power parameters.
  • the PDSCH power parameter is a first type of PDSCH power parameter or a second type of PDSCH power parameter.
  • the first type of PDSCH power parameter or the second type of PDSCH power parameter is selected by DCI, and the transmit power is determined according to the PDSCH power parameter.
  • the first type of PDSCH power parameter is obtained based on the power of the PDSCH where the synthesized symbol is located, and the second type of PDSCH power parameter is obtained based on the power of the component symbol of the synthesized symbol.
  • a set is predefined, and the elements of the set are PDSCH power parameters.
  • the DCI is used to indicate a calculation mode, the PDSCH power parameter is calculated according to the indicated calculation manner, and the transmission power is determined according to the calculated PDSCH power parameter.
  • a domain is defined in the DCI, and the cost is 1 bit.
  • the PDSCH power parameter is obtained by using the first calculation manner.
  • the second calculation mode is used to obtain the PDSCH power parameter.
  • the calculation manner includes: a first type of calculation manner: obtaining the PDSCH power parameter based on a PDSCH power where the synthesized symbol is located, and a second type of calculation manner: based on the synthesis The power of the component symbols of the symbol results in the PDSCH power parameter.
  • the precoding information used by the interference signal is: a PMI used by the interference signal, or a storage sequence number of the PMI used by the interference signal; a PMI used by the interference signal is a non-negative integer; and the PMI used by the interference signal The storage sequence number is a non-negative integer.
  • the indication information includes a storage sequence number of a PMI used by the interference signal
  • the acquiring module is further configured to acquire a PMI used by the target signal, a rank used by the target signal, a PMI used by the interference signal, a rank used by the interference signal, and a first information comparison table used by the interference signal;
  • the first information comparison table is searched for, and the storage sequence number of the PMI used for the interference signal is obtained.
  • the acquiring module is further configured to determine, according to a predetermined criterion, that the DMRS port number used by the target terminal is the first port number and the DMRS port used by the interfering terminal according to a predetermined criterion.
  • the serial number is a second port number, and the data is sent according to the first port number and the second port number;
  • the DMRS port number used by the target terminal is in one-to-one correspondence with the DMRS port number used by the interfering terminal.
  • the acquiring module is further configured to: when the DMRS port used by the target terminal and the interfering terminal is one, determine, according to a predetermined criterion, that the DMRS port number used by the target terminal is 7, and the interfering terminal uses The serial number of the DMRS port is 8;
  • the DMRS port numbers used by the target terminal are determined to be 7 and 8 according to a predetermined criterion, and the DMRS port numbers used by the interfering terminal are 7 and 8;
  • the DMRS port number used by the target terminal is determined to be 7 and 8 according to a predetermined criterion, and the DMRS port used by the interfering terminal is used.
  • the serial number is 7;
  • the embodiment of the present invention further provides an information transmission device, where the device is located at a target terminal, and the device includes: a receiving module and a processing module;
  • the receiving module is configured to receive indication information sent by the base station
  • the processing module is configured to perform interference cancellation based on the indication information when performing data reception of multi-user overlay.
  • the indication information includes a storage sequence number of a PMI used by the interference signal
  • the processing module is further configured to acquire a PMI used by the target signal, a rank used by the target signal, a rank used by the target signal, and a first information comparison table used by the target signal;
  • the first information comparison table is searched for, and the PMI used for the interference signal is obtained.
  • the indication information includes: a data transmission mode and a DMRS port number used by the target terminal; wherein the data transmission mode is a MUST mode;
  • the processing module is further configured to acquire the target terminal in the indication information.
  • the DMRS port number is obtained, and the DMRS port number used by the interfering terminal is obtained according to the DMRS port number used by the target terminal.
  • the embodiment of the present invention further provides a computer storage medium storing a computer program configured to perform the above information transmission method according to an embodiment of the present invention.
  • the base station acquires indication information for the target terminal, and sends the indication information to the target terminal, so that the target terminal performs data reception of multi-user superposition.
  • the interference cancellation is performed based on the indication information; thus, the target terminal can receive the information needed to eliminate the interference with less overhead, and effectively improve the interference cancellation of the MUST system while maintaining little influence on the LTE signaling. performance.
  • FIG. 1 is a schematic flowchart 1 of an information transmission method according to an embodiment of the present invention.
  • FIG. 2 is a second schematic flowchart of an information transmission method according to an embodiment of the present invention.
  • FIG. 3 is a third schematic flowchart of an information transmission method according to an embodiment of the present invention.
  • FIG. 4 is a schematic flowchart 4 of an information transmission method according to an embodiment of the present invention.
  • FIG. 5 is a schematic flowchart 5 of an information transmission method according to an embodiment of the present invention.
  • FIG. 6 is a schematic flowchart 6 of an information transmission method according to an embodiment of the present invention.
  • FIG. 7 is a schematic flowchart diagram of a method for transmitting information according to an embodiment of the present invention.
  • FIG. 8 is a schematic flowchart VIII of an information transmission method according to an embodiment of the present invention.
  • FIG. 9 is a schematic flowchart nin of a flow of an information transmission method according to an embodiment of the present invention.
  • FIG. 10 is a schematic flowchart of a method for transmitting information according to an embodiment of the present invention.
  • FIG. 11 is a schematic flowchart 11 of an information transmission method according to an embodiment of the present invention.
  • FIG. 12 is a schematic flowchart of a flow of an information transmission method according to an embodiment of the present invention.
  • FIG. 13 is a schematic flowchart diagram of a method for transmitting information according to an embodiment of the present invention.
  • FIG. 14 is a schematic flowchart of a flow of an information transmission method according to an embodiment of the present invention.
  • 15 is a schematic flowchart of a flow of information transmission method according to an embodiment of the present invention.
  • 16 is a schematic diagram of PRB granularity used by MUST in an embodiment of the present invention.
  • 17 is a schematic flowchart of a method for transmitting information according to an embodiment of the present invention.
  • FIG. 18 is a first schematic structural diagram of an information transmission apparatus according to an embodiment of the present invention.
  • FIG. 19 is a second schematic structural diagram of an information transmission apparatus according to an embodiment of the present invention.
  • FIG. 20 is a third schematic structural diagram of an information transmission apparatus according to an embodiment of the present invention.
  • 21 is a schematic structural diagram 4 of a structure of an information transmission apparatus according to an embodiment of the present invention.
  • 22 is a schematic structural diagram 5 of a structure of an information transmission apparatus according to an embodiment of the present invention.
  • FIG. 23 is a schematic structural diagram 6 of the structure of an information transmission apparatus according to an embodiment of the present invention.
  • FIG. 1 is a schematic flowchart of an information transmission method according to an embodiment of the present invention. The method is applied to a base station. As shown in FIG. 1 , the information transmission method in the embodiment of the present invention includes:
  • Step 101 Acquire indication information for the target terminal.
  • the indication information is used by the target terminal to perform interference cancellation based on the indication information when performing data reception of multi-user overlay.
  • the indication information may separately indicate a certain information by means of independent coding or joint coding, or jointly indicate multiple information by means of independent coding and joint coding, and the indication information includes at least one of the following:
  • DMRS port number used by the interfering terminal rank used by the interference signal, precoding information used by the interference signal, PRB granularity used by the multiuser superimposed transmission MUST, the number of layers of the target signal data, and the target signal data to be interfered with The serial number of the layer;
  • the precoding information used by the interference signal is: a PMI used by the interference signal, or a storage sequence number of the PMI used by the interference signal; and the PMI used by the interference signal is a non-negative integer; The storage sequence number of the PMI used by the interference signal is a non-negative integer.
  • the number of layers of the target signal data is less than or equal to k; preferably, k is 2 or 4; for example, k is 2, that is, the number of layers of the target signal data is 2, and correspondingly, the interfered target signal data is located.
  • the serial number of the layer may be the first layer, the second layer, or the first layer and the second layer.
  • the indication information may only indicate whether the data transmission mode from the base station to the target terminal is a MUST mode
  • the indication information may also simultaneously indicate the number of layers of the target signal data and the sequence number of the layer where the target signal data is interfered, that is, the number of data layers of the target signal, and which layers of data are interfered by other signals;
  • the indication information may also indicate that the data transmission mode from the base station to the target terminal is the MUST mode, the number of layers of the target signal data, and the sequence number of the layer where the interfered target signal data is located;
  • the indication information may also simultaneously indicate the (used) DMRS port number used by the target terminal, the number of layers of the target signal data, and the sequence number of the layer where the interfered target signal data is located;
  • the indication information may also indicate only one of the following three types of information: a DMRS port used by the interference terminal, a PMI used by the interference signal, and a storage sequence number of the PMI used by the interference signal.
  • the base station acquires a storage sequence number of the PMI used for the interference signal of the target terminal, including:
  • the rank used by the interference signal is the same as the rank used by the target signal
  • the first information comparison table is a comparison table of the PMI used for the interference signal and the storage number of the used PMI.
  • the data transmission manner included in the execution information may be a MUST method or a non-MUST method
  • the data transmission mode is the MUST mode
  • the PRB granularity used by the MUST may be: a RBG (Reference Block Group), or a subband, or a PRB Group configured by the RRC of the base station;
  • the PRB granularity is dynamically indicated by DCI signaling: full bandwidth, or a predetermined subband of the system, or a custom PRB granularity.
  • the interfering terminal is also transmission diversity.
  • the mapping between the precoding and the interference signal used by the target signal corresponds to a precoding, and specifically may be a packet used by a Cell-specific Reference Signals (CRS) transmission mode; a grouping principle, such as: The beam angle is less than or equal to X.
  • CRS Cell-specific Reference Signals
  • the method further includes: when the data transmission mode is MUST, determining, according to a predetermined criterion, that the DMRS port number used by the target terminal is a first port number, and a DMRS port used by the interference terminal.
  • the serial number is the second port number, and the data is sent according to the first port number and the second port number; wherein the DMRS port number used by the target terminal and the DMRS port number used by the interfering terminal are One correspondence
  • the DMRS port number used by the target terminal is determined to be 7 according to a predetermined criterion, and the The serial number of the DMRS port used by the interfering terminal is 8;
  • the DMRS port numbers used by the target terminal are determined to be 7 and 8 according to a predetermined criterion, and the DMRS port numbers used by the interfering terminal are 7 and 8;
  • the target terminal and the interfering terminal use two DMRS ports: one is that the target terminal and the interfering terminal each have one, and two ports are respectively used; the other case is There are one target terminal, and two interfering terminals, such as the first interfering terminal and the second interfering terminal.
  • each interfering terminal has one port, and the DMRS port numbers used are respectively Interfere with one of the two DMRS port numbers that the terminal can use, as follows:
  • the DMRS port number used by the target terminal is 7 and 8, and the DMRS port number used by the first interfering terminal is 7, and the DMRS port number used by the second interfering terminal is 8;
  • the DMRS port number used by the target terminal is 7 and 8, and the DMRS port number used by the first interfering terminal is 9, and the DMRS port number used by the second interfering terminal is 10;
  • the DMRS port number used by the target terminal is 9 and 10, and the DMRS port number used by the first interfering terminal is 7, and the DMRS used by the second interfering terminal is used.
  • the port number is 8;
  • the DMRS port number used by the target terminal is 7 and 9, and the DMRS port number used by the first interfering terminal is 8, and the DMRS port number used by the second interfering terminal is 10;
  • the port number used by the target terminal is 8 and 10, and the DMRS port number used by the first interfering terminal is 7, and the DMRS port number used by the second interfering terminal is 9;
  • the DMRS port numbers used by the target terminal are determined to be 7 and 8 according to predetermined criteria. And the DMRS port number used by the interfering terminal is 7;
  • the base station determines the DMRS port number used by the target terminal and the DMRS port number used by the interfering terminal, and performs data transmission based on the determined port number, the corresponding indication information does not include the interference terminal.
  • the DMRS port number used, the target terminal can also be obtained according to the predetermined criterion and the DMRS port number used by itself.
  • the remaining MUST mode bits are used to indicate which PRBs are in the MUST mode in the normal mode, and the MUST mode is a predefined mode;
  • the information used by the MUST mode is an RRC configuration set, which is dynamically transmitted through DCI signaling.
  • Select a set of configurations such as: adding 2 bits in all DCIs, 00 means normal transmission mode, 01 means first MUST mode, 10 means second MUST mode, 11 means third MUST mode; wherein, first, second, The third MUST mode configuration parameter is an RRC configuration.
  • Step 102 Send the indication information to the target terminal, so that the target terminal performs interference information elimination based on the indication information when performing data reception of multi-user overlay.
  • the base station sends the information required for the target terminal to delete the interference to the target terminal in the manner of indicating the information, so that the target terminal performs the interference information based on the indication information when performing data reception of the multi-user overlay.
  • Eliminate on the basis of the actual characteristics of the MUST technology, eliminate redundant information as much as possible to achieve the purpose of reducing the transmission information overhead, while maintaining When the existing LTE signaling has little impact, the interference cancellation performance of the MUST system is improved by transmitting the downlink MUST parameter information.
  • the information transmission method in the embodiment of the present invention includes:
  • Step 201 Acquire indication information for the target terminal.
  • the indication information is used by the target terminal to perform interference cancellation based on the indication information when performing data reception of multi-user overlay.
  • the indication information is: an interference presence identifier, a modulation order used by the interference signal, a DMRS port used by the interference terminal, a scrambling code ID used by the interference signal, and a layer number of the interference signal data.
  • the number of layers of the target signal data is 1.
  • the number of layers of interference signal data is 1.
  • the overhead of the indication information is a total of 3 bits.
  • the joint coding overhead of the interference presence identifier and the debug mode is 2it, as shown in Table 2.1.
  • the overhead of the DMRS port used by the interfering terminal, the scrambling code ID used by the interference signal, and the layer number of the interference signal data is 1 bit.
  • Step 202 Send the indication information to the target terminal, so that the target terminal performs interference information elimination based on the indication information when performing data reception of multi-user overlay.
  • FIG. 3 is a schematic flowchart of an information transmission method according to an embodiment of the present invention. The method is applied to a base station. As shown in FIG. 3, the information transmission method in the embodiment of the present invention includes:
  • Step 301 Acquire indication information for the target terminal.
  • the indication information is used by the target terminal to perform interference cancellation based on the indication information when performing data reception of multi-user overlay.
  • the indication information is: an interference presence identifier, a DMRS port number used by the interference terminal, and a modulation order used by the interference signal.
  • the number of data layers of the target signal is 1.
  • the number of data layers of the interference signal is 1.
  • the overhead of the indication information is 4 bits in total; the overhead of the interference presence identifier is lbit, the cost of the debug mode is 2it; the overhead of the DMRS port number is lbit; as shown in the following Tables 3.1 to 3.3.
  • Step 302 Send the indication information to the target terminal, so that the target terminal performs interference information elimination based on the indication information when performing data reception of multi-user overlay.
  • the information transmission method in the embodiment of the present invention includes:
  • Step 401 Acquire indication information for the target terminal.
  • the indication information is used for data reception of the multi-user overlay by the target terminal.
  • the interference cancellation is performed based on the indication information.
  • the indication information is: an interference presence identifier, a DMRS port number used by the interference terminal, and a modulation order used by the interference signal.
  • the number of data layers of the target signal is 1.
  • the number of data layers of the interference signal is 1.
  • the overhead of the indication information is 4 bits in total; the overhead of the debugging mode is 2it; the cost of the joint coding of the interference presence identifier and the DMRS port number of the interfering terminal is 2 bits; and the interference originating terminal (MO, Mobile Origination Call) is taken as an example. , as shown in Tables 4.1 to 4.2 below.
  • Step 402 Send the indication information to the target terminal, so that the target terminal performs interference information elimination based on the indication information when performing data reception of multi-user overlay.
  • FIG. 5 is a schematic flowchart of an information transmission method according to an embodiment of the present invention. The method is applied to a base station. As shown in FIG. 5, the information transmission method in the embodiment of the present invention includes:
  • Step 501 Acquire indication information for the target terminal.
  • the indication information is used by the target terminal to perform interference cancellation based on the indication information when performing data reception of multi-user overlay.
  • the indication information is: an interference presence identifier, a DMRS port number used by the interference terminal, and a modulation order used by the interference signal.
  • the number of data layers of the target signal is 1 or 2.
  • the number of data layers of the interference signal is 1 or 2.
  • the overhead of the indication information is 4 bits in total; wherein the interference presence identifier and the debugging order are combined
  • the code overhead is 2it; the DMRS port serial number overhead is 2 bits; as shown in Tables 5.1 to 5.3 below.
  • Step 502 Send the indication information to the target terminal, so that the target terminal performs interference information elimination based on the indication information when performing data reception of multi-user overlay.
  • FIG. 6 is a schematic flowchart of an information transmission method according to an embodiment of the present invention. The method is applied to a base station. As shown in FIG. 6, the information transmission method in the embodiment of the present invention includes:
  • Step 601 Acquire indication information for the target terminal.
  • the indication information is used by the target terminal to perform interference cancellation based on the indication information when performing data reception of multi-user overlay.
  • the indication information is: an interference presence identifier, a DMRS port number used by the interference terminal, and a modulation order used by the interference signal.
  • the number of data layers of the target signal is 1 or 2.
  • the number of data layers of the interference signal is 1 or 2.
  • the overhead of the indication information is 4 bits in total; wherein the overhead of the debugging order is 2it; the overhead of the interference presence identifier and the joint coding of the DMRS port number is 2 bits; as shown in Tables 6.1 to 6.3.
  • Step 602 Send the indication information to the target terminal, so that the target terminal performs interference information elimination based on the indication information when performing data reception of multi-user overlay.
  • the port used by the target terminal is port 7 or port 8.
  • FIG. 7 is a schematic flowchart of an information transmission method according to an embodiment of the present invention. The method is applied to a base station. As shown in FIG. 7, the information transmission method in the embodiment of the present invention includes:
  • Step 801 Acquire indication information for the target terminal.
  • the indication information is used by the target terminal to perform interference cancellation based on the indication information when performing data reception of multi-user overlay.
  • the indication information is: an interference presence identifier, a DMRS port number used by the interference terminal, and a modulation order used by the interference signal.
  • the number of data layers of the target signal is 1 or 2.
  • the number of data layers of the interference signal is 1 or 2.
  • the indication information further includes: a DMRS port number used by the target terminal.
  • the joint coding indicating the interference terminal DMRS information and the target terminal DMRS information is as shown in Tables 8.1 to 8.2.
  • the SCIDs of the two are different. If the DMRS port numbers of the target terminal and the interfering terminal are not the same, the SCIDs of the two are the same.
  • the port in Table 8.1 refers to the DMRS port.
  • the port in Table 8.2 refers to the DMRS port.
  • Step 802 Send the indication information to the target terminal, so that the target terminal performs interference information elimination based on the indication information when performing data reception of multi-user overlay.
  • FIG. 8 is a schematic flowchart of an information transmission method according to an embodiment of the present invention, where the method is applied to a base
  • the station as shown in FIG. 8, the information transmission method in the embodiment of the present invention includes:
  • Step 901 Acquire indication information for the target terminal.
  • the indication information is used by the target terminal to perform interference cancellation based on the indication information when performing data reception of multi-user overlay.
  • the indication information is: an interference presence identifier, a DMRS port number used by the interference terminal, and a modulation order used by the interference signal.
  • the number of data layers of the target signal is 1 or 2.
  • the number of data layers of the interference signal is 1 or 2.
  • the indication information further includes: a DMRS port number used by the target terminal.
  • the indication of the modulation order information used for the interference presence indicator and the interference signal is described in the foregoing embodiment.
  • the joint coding indicating the interfering terminal DMRS information and the target terminal DMRS information is as shown in Tables 9.1 to 9.2, or as shown in Tables 9.1 and 9.3.
  • the port in Table 9.2 refers to the DMRS port, and the SCID can be set as needed.
  • the nSCID of the target user and the nSCID of the interfering user are the same or different; the nSCID is an agreed value, such as: the interference scene is fixed to 0 or 1;
  • the port in Table 9.2 refers to the DMRS port, and the SCID can be set as needed.
  • the nSCID of the target user and the nSCID of the interfering user are the same or different; the nSCID is an agreed value, such as: the interference scene is fixed to 0 or 1.
  • Step 902 Send the indication information to the target terminal, so that the target terminal performs interference information elimination based on the indication information when performing data reception of multi-user overlay.
  • the target terminal DMRS port information is shown in Tables 10.1 and 10.2.
  • Target terminal DMRS port information (single codeword stream enable) (overhead is 3 bits)
  • FIG. 9 is a schematic flowchart of an information transmission method according to an embodiment of the present invention. The method is applied to a target terminal. As shown in FIG. 9, the information transmission method in the embodiment of the present invention includes:
  • Step 1101 Receive indication information sent by the base station.
  • the indication information may separately indicate a certain information by means of independent coding or joint coding, or jointly indicate multiple types of information by means of independent coding and joint coding, and the indication information includes at least one of the following:
  • DMRS port number used by the interfering terminal precoding information used by the interference signal, PRB granularity used by the MUST, the number of layers of the target signal data, the sequence number of the layer where the target signal data is interfered, and the DMRS port used by the target terminal Serial number.
  • the indication information in the embodiment is the same as the description information in the first embodiment, and details are not repeatedly described herein.
  • the indication information includes a storage sequence number of a PMI used by the interference signal
  • the method further includes:
  • the target terminal acquires the PMI used by the target signal, the rank used by the target signal, and a first information comparison table used by the target signal;
  • the first information comparison table is a comparison table of the storage number of the PMI used for the interference signal and the PMI used for the interference signal.
  • the indication information includes: a data transmission mode and a DMRS port number used by the target terminal; wherein the data transmission mode is a MUST mode;
  • the method further includes:
  • Step 1102 Perform interference information elimination based on the indication information when performing data reception of multi-user overlay.
  • the process of obtaining the interference information based on the indication information after the target terminal acquires the indication information belongs to the prior art, and is not described herein.
  • the target terminal receives the indication information required for deleting interference sent by the base station, so as to perform interference information elimination based on the indication information when performing data reception of the multi-user overlay, based on the actual features of the MUST technology,
  • the redundant information is removed as much as possible to achieve the purpose of reducing the transmission information overhead, and the interference cancellation performance of the MUST system is improved by transmitting the downlink MUST parameter information while maintaining little influence on the existing LTE signaling.
  • FIG. 10 is a schematic flowchart of an information transmission method according to an embodiment of the present invention. As shown in FIG. 10, the information transmission method in the embodiment of the present invention includes:
  • Step 1201 The base station acquires indication information for the target terminal, where the indication information includes a data transmission manner.
  • the indication information is used by the target terminal to perform interference cancellation based on the indication information when performing data reception of multi-user overlay.
  • the indication information includes only a data transmission mode, and the data transmission mode is indicated by using an independent coding manner, where the indication information is 1 bit;
  • the transmission mode of the base station to the target terminal is MUST;
  • the transmission mode of the base station to the target terminal is non-MUST
  • the transmission mode of the base station to the target terminal is MUST;
  • the transmission mode of the base station to the target terminal is non-MUST.
  • Step 1202 Send the indication information to the target terminal.
  • the base station uses a small overhead indication transmission mode
  • the target terminal directly obtains the transmission mode of the target signal data by using the indication information sent by the base station, and further knows that in the case that the transmission mode is MUST, the redundancy is eliminated as much as possible. The remaining interference information.
  • FIG. 11 is a schematic flowchart of an information transmission method according to an embodiment of the present invention. As shown in FIG. 11, the information transmission method in the embodiment of the present invention includes:
  • Step 1301 The base station acquires indication information for the target terminal, where the indication information includes the number of layers of the target signal data and the sequence number of the layer where the interfered target signal data is located.
  • the indication information is used by the target terminal to perform interference cancellation based on the indication information when performing data reception of multi-user overlay.
  • the indication information includes the layer 2 target signal data and the sequence number of the layer where the target signal data is interfered, and the information is indicated by means of joint coding, where the overhead of the indication information is 2 bits;
  • the value of the second bit of the indication information is 1, it indicates that the second layer signal of the target signal is not interfered by other signals.
  • Step 1302 Send the indication information to the target terminal.
  • the base station uses a small overhead to indicate the number of layers of the target signal data and the sequence number of the layer where the target signal data is interfered, and the target terminal can directly obtain the layer number of the target signal data and the eNB by the indication information sent by the base station.
  • the serial number of the layer where the target signal data of the interference is located, thereby eliminating redundant interference information as much as possible, and effectively improving the interference cancellation performance of the system.
  • FIG. 12 is a schematic flowchart of an information transmission method according to an embodiment of the present invention. As shown in FIG. 12, the information transmission method in the embodiment of the present invention includes:
  • Step 1401 The base station acquires indication information for the target terminal, where the indication information includes a data transmission mode, a layer number of the target signal data, and a sequence number of the layer where the interfered target signal data is located.
  • the indication information is used by the target terminal to perform interference cancellation based on the indication information when performing data reception of multi-user overlay.
  • the indication information includes a data transmission mode, a layer 2 target signal data, and a sequence number of a layer where the interfered target signal data is located, where the overhead of the indication information is 2 bits;
  • the first layer signal indicating the target signal is interfered by other signals; when it is 1, the first layer signal indicating the target signal is not interfered by other signals. ;
  • the second layer signal indicating the target signal is interfered by other signals; when it is 1, the second layer signal indicating the target signal is not interfered by other signals;
  • Step 1402 Send the indication information to the target terminal.
  • the base station uses a small overhead to indicate the data transmission mode and the number of target signals.
  • the target terminal can directly obtain the above information through the indication information sent by the base station, and in the case of performing the MUST transmission, the redundant interference information can be eliminated as much as possible, thereby effectively improving System interference cancellation performance.
  • FIG. 13 is a schematic flowchart of an information transmission method according to an embodiment of the present invention. As shown in FIG. 13, the information transmission method in the embodiment of the present invention includes:
  • Step 1501 The base station acquires indication information for the target terminal, where the indication information includes the number of layers of the target signal data, the sequence number of the layer where the target signal data is interfered, and the DMRS port number used by the target terminal.
  • the indication information is used by the target terminal to perform interference cancellation based on the indication information when performing data reception of multi-user overlay.
  • the overhead of the indication information is 2 bits, and different bit values corresponding to different information contents, as shown in Table 1:
  • Step 1502 Send the indication information to the target terminal.
  • FIG. 14 is a schematic flowchart of an information transmission method according to an embodiment of the present invention. As shown in FIG. 14, the information transmission method in the embodiment of the present invention includes:
  • Step 1601 The base station acquires indication information for the target terminal, where the indication information includes a DMRS port sequence number used by the interference terminal.
  • the overhead of the indication information is 2 bits
  • the indication information indicates that the DMRS port number used by the interfering terminal is 7;
  • the indication information indicates that the DMRS port number used by the interfering terminal is 8;
  • the indication information indicates that the DMRS port number used by the interference terminal is 9;
  • the indication information indicates that the DMRS port number used by the interfering terminal is 10.
  • the indication information includes a precoding weight number (PMI) used by the interference signal
  • PMI precoding weight number
  • the number of transmit antenna ports of the base station is 2;
  • the first bit value of the indication information is 0 and the second bit value is 1, it indicates that the PMI used by the interference signal is 1;
  • the interference signal The number of PMI used is 2;
  • the first bit value of the indication information is 1 and the second bit value is 1, it indicates that the PMI used by the interference signal is 3.
  • the indication information includes the storage sequence number of the PMI used by the interference signal
  • the following manner may be used in the same manner:
  • the first bit value of the indication information is 0 and the second bit value is 0, it indicates that the storage sequence number used by the PMI used by the interference signal is 0 (or 1);
  • the first bit value of the indication information is 0 and the second bit value is 1, it indicates that the storage sequence number used by the PMI used by the interference signal is 1 (or 2);
  • the first bit value of the indication information is 1 and the second bit value is 0, it indicates that the PMI used by the interference signal uses a storage sequence number of 2 (or 3);
  • the first bit value of the indication information is 1 and the second bit value is 1, it indicates that the PMI used by the interference signal uses a storage sequence number of 3 (or 4).
  • Step 1602 Send the indication information to the target terminal.
  • FIG. 15 is a schematic flowchart of an information transmission method according to an embodiment of the present invention. As shown in FIG. 15, the information transmission method in the embodiment of the present invention includes:
  • Step 1701 The base station acquires indication information for the target terminal, where the indication information includes a PRB granularity used by the MUST.
  • the indication information is used by the target terminal to perform interference cancellation based on the indication information when performing data reception of multi-user overlay.
  • the overhead of the indication information is 2 bits.
  • the following settings can be made:
  • the indication information indicates that the PRB granularity used for the MUST transmission is the full bandwidth, as shown in FIG. 16a;
  • the The indication information indicates that the PRB granularity used by the MUST transmission is a predetermined subband of the system, as shown in FIG. 16b;
  • the indication information indicates that the PRB granularity used for the MUST transmission is 1, as shown in FIG. 16c;
  • the indication information indicates that the PRB granularity used for the MUST transmission is 2, as shown in FIG. 16d.
  • Step 1702 Send the indication information to the target terminal.
  • FIG. 17 is a schematic flowchart of a method for a PMI used by a target terminal to acquire an interference signal according to an embodiment of the present invention. As shown in FIG. 17, the method for acquiring a PMI used by an object for an interference signal in the embodiment of the present invention includes:
  • Step 1801 Acquire a PMI used by the target signal, a rank used by the target signal, a storage sequence number of the PMI used by the interference signal, and a first information comparison table used by the target signal.
  • the number of transmit antennas is 4T X , and the data is transmitted based on the CRS port.
  • the PMI used by the target signal is the precoding weight sequence number p 2 used by the target signal, and the rank used by the target signal is r 2 , and the interference signal is used.
  • the storage number of the PMI is l M , and the first information comparison table includes Table A1 and Table A2.
  • Step 1802 Searching the first information comparison table based on the storage sequence number of the PMI used by the interference signal, the PMI used by the target signal, and the rank used by the target signal, and obtaining the PMI used by the interference signal.
  • the step includes:
  • Table A1 is a codeword pairing situation table with rank 1 and Table A2 is a codeword pairing situation table with rank 2, as follows:
  • PMI used by the target signal PMI for interference signal use 0 0, 9, 11 1 1, 8, 10 2 2, 9, 11 3 3, 8, 10 4 4 5 5 6 6 7 7 8 1, 3, 8 9 0, 2, 9 10 1, 3, 10 11 0, 2, 11 12 12 13 13 14 14 15 15
  • the angle between the codeword indicated by the PMI used by the target signal and the codeword indicated by the PMI used by the interference signal is less than or equal to 45 degrees.
  • the angle between the codeword indicated by the PMI used by the target signal and the codeword indicated by the PMI used by the interference signal is less than or equal to 45 degrees.
  • FIG. 18 is a schematic structural diagram of an information transmission apparatus according to an embodiment of the present invention.
  • the apparatus is located at a base station.
  • the information transmission apparatus in the embodiment of the present invention includes: an obtaining module 131 and a sending module 132;
  • the obtaining module 131 is configured to acquire indication information for the target terminal.
  • the sending module 132 is configured to send the indication information to the target terminal, so that the target terminal performs interference cancellation based on the indication information when performing data reception of multi-user overlay;
  • the indication information may separately indicate a certain information by means of independent coding or joint coding, or jointly indicate multiple types of information by means of independent coding and joint coding, and the indication information includes at least one of the following:
  • DMRS port number used by the interfering terminal rank used by the interference signal, precoding information used by the interference signal, PRB granularity used by the multiuser superimposed transmission MUST, the number of layers of the target signal data, and the target signal data to be interfered with The serial number of the layer;
  • the precoding information used by the interference signal is: a PMI used by the interference signal, or a storage sequence number of the PMI used by the interference signal; a PMI used by the interference signal is a non-negative integer; and a storage sequence number of the PMI used by the interference signal Is a non-negative integer.
  • the data transmission manner includes: a MUST mode and a non-MUST mode.
  • the indication information in the embodiment is the same as the description information in the first embodiment of the method, and details are not repeatedly described herein.
  • the indication information includes a storage sequence number of a PMI used by the interference signal
  • the acquiring module 131 is further configured to acquire a PMI used by the target signal, a rank used by the target signal, a PMI used by the interference signal, a rank used by the interference signal, and a first information comparison table used by the interference signal;
  • the first information comparison table is searched for, and the storage sequence number of the PMI used for the interference signal is obtained.
  • the acquiring module is further configured to: when the data transmission mode is MUST, determine, according to a predetermined criterion, that the DMRS port number used by the target terminal is the first port number, and the DMRS used by the interference terminal.
  • the port number is a second port number, to perform data transmission based on the first port number and the second port number;
  • the DMRS port number used by the target terminal is in one-to-one correspondence with the DMRS port number used by the interfering terminal.
  • the acquiring module is further configured to: when the DMRS port used by the target terminal and the interfering terminal is one, determine, according to a predetermined criterion, that the DMRS port number used by the target terminal is 7, and the interference terminal uses The serial number of the DMRS port is 8.
  • the DMRS port numbers used by the target terminal are determined to be 7 and 8 according to a predetermined criterion, and the DMRS port numbers used by the interfering terminal are 7 and 8;
  • the DMRS port number used by the target terminal is determined to be 7 and 8 according to a predetermined criterion, and the DMRS port used by the interfering terminal is used.
  • the serial number is 7;
  • FIG. 19 is a schematic structural diagram of a structure of an information transmission apparatus according to an embodiment of the present invention.
  • the apparatus is located at a base station.
  • the information transmission apparatus in the embodiment of the present invention includes: an obtaining module 141 and a sending module 142;
  • the obtaining module 141 is configured to acquire indication information for the target terminal
  • the sending module 142 is configured to send the indication information to the target terminal, so that the target terminal performs interference cancellation based on the indication information when performing data reception of multi-user overlay;
  • the indication information is: a DMRS port number used by the interference terminal, and an interference signal used. Modulation order.
  • FIG. 20 is a schematic structural diagram of a structure of an information transmission apparatus according to an embodiment of the present invention.
  • the apparatus is located at a base station.
  • the information transmission apparatus in the embodiment of the present invention includes: an obtaining module 151 and a sending module 152;
  • the obtaining module 151 is configured to acquire indication information for the target terminal
  • the sending module 152 is configured to send the indication information to the target terminal, so that the target terminal performs interference cancellation based on the indication information when performing data reception of multi-user overlay;
  • the indication information is: a modulation order used by the interference signal.
  • FIG. 21 is a schematic structural diagram of an information transmission apparatus according to an embodiment of the present invention.
  • the apparatus is located at a target terminal.
  • the information transmission apparatus in the embodiment of the present invention includes: a receiving module 161 and a processing module 162;
  • the receiving module 161 is configured to receive indication information sent by the base station
  • the processing module 162 is configured to perform interference information elimination based on the indication information when performing data reception of multi-user overlay;
  • the indication information may separately indicate a certain information by means of independent coding or joint coding, or jointly indicate multiple types of information by means of independent coding and joint coding, and the indication information includes at least one of the following:
  • Data transmission method DMRS port number used by the interfering terminal, precoding information used by the interference signal, PRB granularity used by the multi-user superimposed transmission MUST, the number of layers of the target signal data, the serial number of the layer where the target signal data is interfered, and the target terminal The serial number of the DMRS port used;
  • the precoding information used by the interference signal is: a PMI used by the interference signal, or a storage sequence number of the PMI used by the interference signal;
  • the data transmission manner includes: a MUST mode and a non-MUST mode.
  • the indication information in the embodiment is the same as the description information in the first embodiment of the method, and details are not repeatedly described herein.
  • the indication information includes a storage sequence number of a PMI used by the interference signal
  • the processing module 162 is further configured to acquire a PMI used by the target signal, a rank used by the target signal, and a first information comparison table used by the target signal;
  • the first information comparison table is searched for, and the PMI used for the interference signal is obtained.
  • the indication information includes: a data transmission mode and a DMRS port number used by the target terminal; wherein the data transmission mode is a MUST mode;
  • the processing module 162 is further configured to obtain a DMRS port number used by the target terminal in the indication information, and obtain a DMRS port number used by the interference terminal according to the DMRS port number used by the target terminal.
  • FIG. 22 is a schematic structural diagram of an information transmission apparatus according to an embodiment of the present invention.
  • the apparatus is located at a target terminal.
  • the information transmission apparatus in the embodiment of the present invention includes: a receiving module 171 and a processing module 172;
  • the receiving module 171 is configured to receive indication information sent by the base station
  • the processing module 172 is configured to perform interference information elimination based on the indication information when performing data reception of multi-user overlay;
  • the indication information is: a DMRS port number used by the interference terminal, and a modulation order used by the interference signal.
  • FIG. 23 is a schematic structural diagram of an information transmission apparatus according to an embodiment of the present invention.
  • the apparatus is located at a target terminal.
  • the information transmission apparatus in the embodiment of the present invention includes: a receiving module 181 and a processing module 182;
  • the receiving module 181 is configured to receive indication information sent by the base station
  • the processing module 182 is configured to perform interference information cancellation based on the indication information when performing data reception of multi-user overlay;
  • the indication information is: a modulation order used by the interference signal.
  • each module may be a central processing unit (CPU) or a digital signal processor (DSP) in a server or a terminal, or a field programmable gate array (FPGA, Field Programmable Gate Array), or an Integrated Circuit (ASIC) implementation. Both the transmitting module and the receiving module can be implemented by an antenna system.
  • CPU central processing unit
  • DSP digital signal processor
  • FPGA Field Programmable Gate Array
  • ASIC Integrated Circuit
  • the port is a DMRS port used by the interference terminal
  • the scrambling code ID is a scrambling code ID used by the interference signal
  • the number of layers is the number of layers of the interference signal data.
  • the modulation order used by the interference presence indicator and the interference signal is indicated by joint coding.
  • the interference presence indicator and the port, the scrambling code ID, and the number of layers are indicated by joint coding.
  • the scrambling code IDs of the target terminal and the interfering terminal are set to be the same.
  • the elements of the set are physical downlink shared channel PDSCH power parameters; the PDSCH power parameter is a first type of PDSCH power parameter or a second type of PDSCH power parameter; and the first type of PDSCH power parameter is indicated by DCI Or a second type of PDSCH power parameter, and determining a transmit power according to the PDSCH power parameter.
  • the PDSCH power parameter represents the power of the synthesized symbol, or the power of the component symbol of the synthesized symbol.
  • the DCI indicates a calculation mode, calculates a PDSCH power parameter according to the indicated calculation manner, and determines a transmission power according to the calculated PDSCH power parameter.
  • the calculation includes the first type of calculation: the PDSCH power parameter is obtained based on the PDSCH power of the synthesized symbol, and the second type of calculation is: obtaining the PDSCH power parameter based on the power of the component symbol of the synthesized symbol.
  • An embodiment of the present invention further provides an information transmission apparatus including: a processor and a memory for storing a computer program executable on the processor,
  • the above information transmission method is implemented in the form of a software function module and sold or used as a stand-alone product, it may also be stored in a computer readable storage medium.
  • the technical solution of the embodiments of the present invention may be embodied in the form of a software product in essence or in the form of a software product stored in a storage medium, including a plurality of instructions.
  • a computer device (which may be a personal computer, server, or network device, etc.) is caused to perform all or part of the methods described in various embodiments of the present invention.
  • the foregoing storage medium includes various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read only memory (ROM), a magnetic disk, or an optical disk.
  • program codes such as a USB flash drive, a mobile hard disk, a read only memory (ROM), a magnetic disk, or an optical disk.
  • an embodiment of the present invention further provides a computer storage medium, where the computer storage medium stores a computer program, and the computer program is used to execute the foregoing information transmission method of the embodiment of the present invention.
  • the base station acquires the indication information for the target terminal, and sends the indication information to the target terminal; the target terminal receives the indication information sent by the base station, and performs the data reception based on the indication information when performing multi-user superposition data reception.
  • Interference cancellation So, you can use less The overhead causes the target terminal to receive the information needed to eliminate the interference, and effectively improves the interference cancellation performance of the MUST system while maintaining little influence on the LTE signaling.

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Abstract

本发明公开了一种信息传输方法,包括:基站获取针对目标终端的指示信息,并发送所述指示信息给所述目标终端;目标终端接收基站发送的指示信息,并在进行多用户叠加的数据接收时基于所述指示信息进行干扰消除。本发明还同时公开了一种信息传输装置及存储介质。

Description

一种信息传输方法、装置及存储介质
相关申请的交叉引用
本申请基于申请号为201610322443.1申请日为2016年05月13日,以及申请号为201610965396.2申请日为2016年11月04日的中国专利申请提出,并要求该中国专利申请的优先权,该中国专利申请的全部内容在此引入本申请作为参考。
技术领域
本发明涉及无线通信技术领域,尤其涉及一种信息传输方法、装置及存储介质。
背景技术
非正交多址接入技术(NOMA,None Orthogonal Multiple Access)作为第五代移动通信技术(5G,5th-Generation)潜在的关键技术之一,在提高频谱效率上的优势显著,NOMA原理是发射侧做多用户信息叠加编码,接收侧使用串行干扰消除(SIC,Successive Interference Cancellation)。
基于NOMA技术发展起来的多用户叠加传输(MUST,Multi-User Superposition Transmission)是国际标准组织3GPP在5G研究的重要内容,在研究中发现,尽可能的使接收终端获得必要的已知信息、对接收端消除干扰、提高解调正确率是很关键的。然而,现有的物理下行控制信道(PDCCH,Physical Downlink Control Channel)控制信令并不能有效指示MUST参数,这给MUST系统的性能提高带来了困难。
因此,提供一种信息传输方案,能够让接收终端获取消除干扰所需要的信息,提高MUST系统的干扰消除性能,已成为亟待解决的问题。
发明内容
有鉴于此,本发明实施例期望提供一种信息传输方法、装置及存储介质,至少解决了现有技术中存在的问题,能够利用较少的开销使得目标终端接收到消除干扰所需要的信息,在保持对现有长期演进(LTE,Long Term Evolution)信令影响不大的情况下,有效提高MUST系统的干扰消除性能。
本发明实施例的技术方案是这样实现的:
本发明实施例提供了一种信息传输方法,所述方法包括:
获取针对目标终端的指示信息;
发送所述指示信息给所述目标终端,以使所述目标终端在进行多用户叠加的数据接收时基于所述指示信息进行干扰消除。
上述方案中,所述指示信息包括以下至少之一:
数据传输方式、干扰终端使用的解调参考信号(DMRS,Demodulation Reference Signal)端口序号、干扰信号使用的秩、干扰信号使用的预编码信息、多用户叠加传输MUST使用的物理资源块(PRB,Physical Resource Block)粒度、目标信号数据的层数及被干扰的目标信号数据所在层的序号。
上述方案中,所述指示信息包括以下信息:
干扰存在标识;干扰信号的调制阶数;端口、扰码标识(ID,IDentification)、层数的联合编码域信息。
上述方案中,所述端口是干扰终端使用的DMRS端口、所述扰码ID是干扰信号使用的扰码ID、所述层数是干扰信号数据的层数。
上述方案中,所述干扰存在标识和干扰信号的调制阶数通过联合编码进行指示。
上述方案中,所述干扰存在标识和所述端口、所述扰码ID、所述层数通过联合编码进行指示。
上述方案中,目标终端的DMRS端口信息和干扰终端的DMRS端口信息通过1个信令联合指示,
或者目标终端的DMRS端口信息通过1个信令指示,干扰终端的DMRS端口信息通过1个信令指示。
上述方案中,目标信号数据的层数为1;所述干扰信号数据的层数为1。
上述方案中,如果目标终端和干扰终端的DMRS端口不相同,则目标终端和干扰终端的扰码ID设置为相同或不同。
上述方案中,预定义一个集合,所述集合的元素是物理下行共享信道(PDSCH,Physical Downlink Shared Channel)功率参数。所述PDSCH功率参数为第一类PDSCH功率参数或者第二类PDSCH功率参数。通过下行控制信息(DCI,Downlink Control Information)来指示选择第一类PDSCH功率参数或第二类PDSCH功率参数,根据所述PDSCH功率参数确定发射功率。
上述方案中,所述PDSCH功率参数表示合成符号的功率,或者合成符号的分量符号的功率。
上述方案中,通过DCI来指示一种计算方式,根据所指示的计算方式计算PDSCH功率参数,根据所计算出来的PDSCH功率参数确定发射功率。
在DCI中定义一个域,开销为1比特,当取值为0时,采用第一计算方式获得PDSCH功率参数,当取值为1时,采用第二计算方式获得PDSCH功率参数。
PDSCH功率参数取值可能为-6dB,-3dB,0dB,1dB,2dB,3dB。
上述方案中,所述计算方式包括,第一类计算方式:基于合成符号所在的PDSCH功率得到所述PDSCH功率参数,第二类计算方式:基于合成符号的分量符号的功率得到所述PDSCH功率参数。
上述方案中,所述干扰信号使用的预编码信息为:干扰信号使用的预编码矩阵指示(PMI,Precoding Matrix Indicator),或者干扰信号使用的PMI的存储序号;所述干扰信号使用的PMI是非负整数;所述干扰信号使用的PMI的存储序号是非负整数。
上述方案中,所述指示信息包括干扰信号使用的PMI的存储序号;
相应的,所述获取针对目标终端的指示信息,包括:
获取目标信号使用的PMI、目标信号使用的秩、干扰信号使用的PMI、干扰信号使用的秩,以及干扰信号使用的第一信息对照表;
基于所述目标信号使用的PMI、目标信号使用的秩、干扰信号使用的PMI、干扰信号使用的秩,查找所述第一信息对照表,获得干扰信号使用的PMI的存储序号。
上述方案中,所述数据传输方式包括:MUST方式及非MUST方式。
上述方案中,所述数据传输方式为MUST方式;
相应的,所述MUST使用的PRB粒度包括三种:全带宽、预定义的子带及自定义PRB粒度。
上述方案中,所述方法还包括:
当所述数据传输方式为MUST时,按照预定准则,确定所述目标终端所使用的DMRS端口序号为第一端口号、干扰终端所使用的DMRS端口序号为第二端口号,以基于所述第一端口号及所述第二端口号进行数据发送;
其中,所述目标终端所使用的DMRS端口序号与所述干扰终端所使用的DMRS端口序号一一对应。
上述方案中,所述按照预定准则,确定所述目标终端所使用的DMRS端口序号为第一端口号、干扰终端所使用的DMRS端口序号为第二端口号,包括:
当目标终端及干扰终端使用的DMRS端口均为一个时,按照预定准则,确定所述目标终端使用的DMRS端口序号为7,且所述干扰终端使用的DMRS端口序号为8;
或者,按照预定准则,确定所述目标终端使用的DMRS端口序号为7,且所述干扰终端使用的DMRS端口序号为9;
或者,按照预定准则,确定所述目标终端使用的DMRS端口序号为7, 且所述干扰终端使用的DMRS端口序号为10;
或者,按照预定准则,确定所述目标终端使用的DMRS端口序号为8,且所述干扰终端使用的DMRS端口序号为7;
或者,按照预定准则,确定所述目标终端使用的DMRS端口序号为8,且所述干扰终端使用的DMRS端口序号为9;
或者,按照预定准则,确定所述目标终端使用的DMRS端口序号为8,且所述干扰终端使用的DMRS端口序号为10;
当目标终端及干扰终端使用的DMRS端口均为两个时,按照预定准则,确定所述目标终端使用的DMRS端口序号为7和8,且所述干扰终端使用的DMRS端口序号为7和8;
或者,按照预定准则,确定所述目标终端使用的DMRS端口序号为7和8,且所述干扰终端使用的DMRS端口序号为9和10;
或者,按照预定准则,确定所述目标终端使用的DMRS端口序号为7和9,且所述干扰终端使用的DMRS端口序号为8和10;
或者,按照预定准则,确定所述目标终端使用的DMRS端口序号为8和10,且所述干扰终端使用的DMRS端口序号为7和9;
当目标终端使用的DMRS端口为两个,且干扰终端使用的DMRS端口为一个时,按照预定准则,确定所述目标终端使用的DMRS端口序号为7和8,且所述干扰终端使用的DMRS端口序号为7;
或者,按照预定准则,确定所述目标终端使用的DMRS端口序号为7和8,且所述干扰终端使用的DMRS端口序号为8;
或者,按照预定准则,确定所述目标终端使用的DMRS端口序号为7和8,且所述干扰终端使用的DMRS端口序号为9;
或者,按照预定准则,确定所述目标终端使用的DMRS端口序号为7和8,且所述干扰终端使用的DMRS端口序号为10;
或者,按照预定准则,确定所述目标终端使用的DMRS端口序号为7 和9,且所述干扰终端使用的DMRS端口序号为8;
或者,按照预定准则,确定所述目标终端使用的DMRS端口序号为7和9,且所述干扰终端使用的DMRS端口序号为10;
或者,按照预定准则,确定所述目标终端使用的DMRS端口序号为8和10,且所述干扰终端使用的DMRS端口序号为7;
或者,按照预定准则,确定所述目标终端使用的DMRS端口序号为8和10,且所述干扰终端使用的DMRS端口序号为9;
或者,按照预定准则,确定所述目标终端使用的DMRS端口序号为9和10,且所述干扰终端使用的DMRS端口序号为7;
或者,按照预定准则,确定所述目标终端使用的DMRS端口序号为9和10,且所述干扰终端使用的DMRS端口序号为8;
或者,按照预定准则,确定所述目标终端使用的DMRS端口序号为9和10,且所述干扰终端使用的DMRS端口序号为9;
或者,按照预定准则,确定所述目标终端使用的DMRS端口序号为9和10,且所述干扰终端使用的DMRS端口序号为10。
本发明实施例还提供了一种信息传输方法,所述方法包括:
接收基站发送的指示信息;
在进行多用户叠加的数据接收时基于所述指示信息进行干扰消除。
上述方案中,接收侧根据DCI获得PDSCH功率参数,根据获取的所述PDSCH功率参数对接收数据进行解调。
上述方案中,接收侧根据DCI获得一种计算方式,进而基于所述计算方式计算得到PDSCH功率参数,根据计算得到的所述PDSCH功率参数对接收数据进行解调。
上述方案中,所述指示信息包括干扰信号使用的PMI的存储序号;
相应的,所述接收基站发送的指示信息之后,所述方法还包括:
获取目标信号使用的PMI、目标信号使用的秩,以及目标信号使用的 第一信息对照表;
基于所述干扰信号使用的PMI的存储序号、目标信号使用的PMI、目标信号使用的秩,查找所述第一信息对照表,获得干扰信号使用的PMI。
上述方案中,所述第一信息对照表表现了目标信号使用的PMI和干扰信号使用的PMI的对应关系;所述对应关系是根据所述目标信号使用的PMI所指示的码字和干扰信号使用的PMI所指示的码字之间的夹角确定的。
上述方案中,所述指示信息包括:数据传输方式及目标终端使用的DMRS端口序号;其中,所述数据传输方式为MUST方式;
相应的,所述接收基站发送的指示信息之后,所述方法还包括:
获取所述指示信息中目标终端使用的DMRS端口序号,并依据所述目标终端使用的DMRS端口序号获得干扰终端使用的DMRS端口序号。
本发明实施例还提供了一种信息传输装置,所述装置位于基站,所述装置包括:获取模块及发送模块;其中,
所述获取模块,配置为获取针对目标终端的指示信息;
所述发送模块,配置为发送所述指示信息给所述目标终端,以使所述目标终端在进行多用户叠加的数据接收时基于所述指示信息进行干扰信息消除。
上述方案中,所述指示信息包括以下至少之一:
数据传输方式、干扰终端使用的DMRS端口序号、干扰信号使用的秩、干扰信号使用的预编码信息、多用户叠加传输MUST使用的物理资源块PRB粒度、目标信号数据的层数及被干扰的目标信号数据所在层的序号。
上述方案中,所述指示信息包括以下信息:
干扰存在标识;干扰信号的调制阶数;端口、扰码ID、层数的联合编码域信息。
上述方案中,所述端口是干扰终端使用的DMRS端口、所述扰码ID 是干扰信号使用的扰码ID、所述层数是干扰信号数据的层数。
上述方案中,所述干扰存在标识和干扰信号使用的调制阶数通过联合编码进行指示。
上述方案中,所述干扰存在标识和所述端口、所述扰码ID、所述层数通过联合编码进行指示。
上述方案中,目标信号数据的层数为1;所述干扰信号数据的层数为1。
上述方案中,如果目标终端和干扰终端的DMRS端口不相同,则目标终端和干扰终端的扰码ID设置为相同。
上述方案中,所述干扰信号使用的预编码信息为:干扰信号使用的PMI,或者干扰信号使用的PMI的存储序号;所述干扰信号使用的PMI是非负整数;所述干扰信号使用的PMI的存储序号是非负整数。
上述方案中,预定义一个集合,所述集合的元素是PDSCH功率参数。所述PDSCH功率参数为第一类PDSCH功率参数或者第二类PDSCH功率参数。通过DCI来指示选择第一类PDSCH功率参数或第二类PDSCH功率参数,根据所述PDSCH功率参数确定发射功率。
上述方案中,所述第一类PDSCH功率参数是基于合成符号所在PDSCH的功率得到,所述第二类PDSCH功率参数是基于合成符号的分量符号的功率得到。
上述方案中,预定义一个集合,所述集合的元素是PDSCH功率参数。通过DCI来指示一种计算方式,根据所指示的计算方式计算PDSCH功率参数,根据所计算出来的PDSCH功率参数确定发射功率。
在DCI中定义一个域,开销为1比特,当取值为0时,采用第一计算方式获得PDSCH功率参数,当取值为1时,采用第二计算方式获得PDSCH功率参数。
上述方案中,所述计算方式包括,第一类计算方式:基于合成符号所在的PDSCH功率得到所述PDSCH功率参数,第二类计算方式:基于合成 符号的分量符号的功率得到所述PDSCH功率参数。
上述方案中,所述干扰信号使用的预编码信息为:干扰信号使用的PMI,或者干扰信号使用的PMI的存储序号;所述干扰信号使用的PMI是非负整数;所述干扰信号使用的PMI的存储序号是非负整数。
上述方案中,所述指示信息包括干扰信号使用的PMI的存储序号;
相应的,所述获取模块,还配置为获取目标信号使用的PMI、目标信号使用的秩、干扰信号使用的PMI、干扰信号使用的秩,以及干扰信号使用的第一信息对照表;
基于所述目标信号使用的PMI、目标信号使用的秩、干扰信号使用的PMI、干扰信号使用的秩,查找所述第一信息对照表,获得干扰信号使用的PMI的存储序号。
上述方案中,所述获取模块,还配置为当所述数据传输方式为MUST时,按照预定准则,确定所述目标终端所使用的DMRS端口序号为第一端口号、干扰终端所使用的DMRS端口序号为第二端口号,以基于所述第一端口号及所述第二端口号进行数据发送;
其中,所述目标终端所使用的DMRS端口序号与所述干扰终端所使用的DMRS端口序号一一对应。
上述方案中,所述获取模块,还配置为当目标终端及干扰终端使用的DMRS端口均为一个时,按照预定准则,确定所述目标终端使用的DMRS端口序号为7,且所述干扰终端使用的DMRS端口序号为8;
或者,按照预定准则,确定所述目标终端使用的DMRS端口序号为7,且所述干扰终端使用的DMRS端口序号为9;
或者,按照预定准则,确定所述目标终端使用的DMRS端口序号为7,且所述干扰终端使用的DMRS端口序号为10;
或者,按照预定准则,确定所述目标终端使用的DMRS端口序号为8,且所述干扰终端使用的DMRS端口序号为7;
或者,按照预定准则,确定所述目标终端使用的DMRS端口序号为8,且所述干扰终端使用的DMRS端口序号为9;
或者,按照预定准则,确定所述目标终端使用的DMRS端口序号为8,且所述干扰终端使用的DMRS端口序号为10;
当目标终端及干扰终端使用的DMRS端口均为两个时,按照预定准则,确定所述目标终端使用的DMRS端口序号为7和8,且所述干扰终端使用的DMRS端口序号为7和8;
或者,按照预定准则,确定所述目标终端使用的DMRS端口序号为7和8,且所述干扰终端使用的DMRS端口序号为9和10;
或者,按照预定准则,确定所述目标终端使用的DMRS端口序号为7和9,且所述干扰终端使用的DMRS端口序号为8和10;
或者,按照预定准则,确定所述目标终端使用的DMRS端口序号为8和10,且所述干扰终端使用的DMRS端口序号为7和9;
当目标终端使用的DMRS端口为两个,且干扰终端使用的DMRS端口为一个时,按照预定准则,确定所述目标终端使用的DMRS端口序号为7和8,且所述干扰终端使用的DMRS端口序号为7;
或者,按照预定准则,确定所述目标终端使用的DMRS端口序号为7和8,且所述干扰终端使用的DMRS端口序号为8;
或者,按照预定准则,确定所述目标终端使用的DMRS端口序号为7和8,且所述干扰终端使用的DMRS端口序号为9;
或者,按照预定准则,确定所述目标终端使用的DMRS端口序号为7和8,且所述干扰终端使用的DMRS端口序号为10;
或者,按照预定准则,确定所述目标终端使用的DMRS端口序号为7和9,且所述干扰终端使用的DMRS端口序号为8;
或者,按照预定准则,确定所述目标终端使用的DMRS端口序号为7和9,且所述干扰终端使用的DMRS端口序号为10;
或者,按照预定准则,确定所述目标终端使用的DMRS端口序号为8和10,且所述干扰终端使用的DMRS端口序号为7;
或者,按照预定准则,确定所述目标终端使用的DMRS端口序号为8和10,且所述干扰终端使用的DMRS端口序号为9;
或者,按照预定准则,确定所述目标终端使用的DMRS端口序号为9和10,且所述干扰终端使用的DMRS端口序号为7;
或者,按照预定准则,确定所述目标终端使用的DMRS端口序号为9和10,且所述干扰终端使用的DMRS端口序号为8;
或者,按照预定准则,确定所述目标终端使用的DMRS端口序号为9和10,且所述干扰终端使用的DMRS端口序号为9;
或者,按照预定准则,确定所述目标终端使用的DMRS端口序号为9和10,且所述干扰终端使用的DMRS端口序号为10。
本发明实施例还提供了一种信息传输装置,所述装置位于目标终端,所述装置包括:接收模块及处理模块;其中,
所述接收模块,配置为接收基站发送的指示信息;
所述处理模块,配置为在进行多用户叠加的数据接收时基于所述指示信息进行干扰消除。
上述方案中,所述指示信息包括干扰信号使用的PMI的存储序号;
相应的,所述处理模块,还配置为获取目标信号使用的PMI、目标信号使用的秩、目标信号使用的秩,以及目标信号使用的第一信息对照表;
基于所述干扰信号使用的PMI的存储序号、目标信号使用的秩、目标信号使用的PMI、目标信号使用的秩,查找所述第一信息对照表,获得干扰信号使用的PMI。
上述方案中,所述指示信息包括:数据传输方式及目标终端使用的DMRS端口序号;其中,所述数据传输方式为MUST方式;
相应的,所述处理模块,还配置为获取所述指示信息中目标终端使用 的DMRS端口序号,并依据所述目标终端使用的DMRS端口序号获得干扰终端使用的DMRS端口序号。
本发明实施例还提供了一种计算机存储介质,所述计算机存储介质存储有计算机程序,该计算机程序配置为执行本发明实施例的上述信息传输方法。
本发明实施例提供的信息传输方法、装置及存储介质,基站获取针对目标终端的指示信息,并发送所述指示信息给所述目标终端,以使所述目标终端在进行多用户叠加的数据接收时基于所述指示信息进行干扰消除;如此,能够利用较少的开销使得目标终端接收到消除干扰所需要的信息,在保持对LTE信令影响不大的情况下,有效提高MUST系统的干扰消除性能。
附图说明
图1为本发明实施例中信息传输方法流程示意图一;
图2为本发明实施例中信息传输方法流程示意图二;
图3为本发明实施例中信息传输方法流程示意图三;
图4为本发明实施例中信息传输方法流程示意图四;
图5为本发明实施例中信息传输方法流程示意图五;
图6为本发明实施例中信息传输方法流程示意图六;
图7为本发明实施例中信息传输方法流程示意图七;
图8为本发明实施例中信息传输方法流程示意图八;
图9为本发明实施例中信息传输方法流程示意图九;
图10为本发明实施例中信息传输方法流程示意图十;
图11为本发明实施例中信息传输方法流程示意图十一;
图12为本发明实施例中信息传输方法流程示意图十二;
图13为本发明实施例中信息传输方法流程示意图十三;
图14为本发明实施例中信息传输方法流程示意图十四;
图15为本发明实施例中信息传输方法流程示意图十五;
图16为本发明实施例中MUST使用的PRB粒度示意图;
图17为本发明实施例中信息传输方法流程示意图十七;
图18为本发明实施例中信息传输装置组成结构示意图一;
图19为本发明实施例中信息传输装置组成结构示意图二;
图20为本发明实施例中信息传输装置组成结构示意图三;
图21为本发明实施例中信息传输装置组成结构示意图四;
图22为本发明实施例中信息传输装置组成结构示意图五;
图23为本发明实施例中信息传输装置组成结构示意图六。
具体实施方式
下文中将参考附图并结合实施例来详细说明本发明。需要说明的是,在不冲突的情况下,本申请中的实施例及实施例中的特征可以相互组合。
实施例一
图1为本发明实施例中信息传输方法流程示意图,所述方法应用于基站,如图1所示,本发明实施例中信息传输方法包括:
步骤101:获取针对目标终端的指示信息。
这里,所述指示信息用于所述目标终端在进行多用户叠加的数据接收时基于所述指示信息进行干扰消除。
所述指示信息可以采用独立编码或联合编码的方式单独指示某种信息,或者同时采用独立编码、联合编码的方式联合指示多种信息,所述指示信息包括以下至少之一:
数据传输方式、干扰终端使用的DMRS端口序号、干扰信号使用的秩、干扰信号使用的预编码信息、多用户叠加传输MUST使用的PRB粒度、目标信号数据的层数及被干扰的目标信号数据所在层的序号;
其中,所述干扰信号使用的预编码信息为:干扰信号使用的PMI,或者干扰信号使用的PMI的存储序号;所述干扰信号使用的PMI是非负整数; 所述干扰信号使用的PMI的存储序号是非负整数。
在实际应用中,目标信号数据的层数小于等于k;优选的,k为2或4;如:k为2,即目标信号数据的层数为2,相应的,被干扰的目标信号数据所在层的序号可以为第一层、第二层,或第一层及第二层。
在实际应用中,所述指示信息既可以仅仅指示从基站到目标终端的数据传输方式是否为MUST方式;
所述指示信息还可以同时指示目标信号数据的层数及被干扰的目标信号数据所在层的序号,即目标信号的数据层数、以及有哪些层的数据被其它信号干扰;
所述指示信息还可以同时指示从基站到目标终端的数据传输方式为MUST方式、目标信号数据的层数及被干扰的目标信号数据所在层的序号;
所述指示信息还可以同时指示目标终端使用的(使用的)DMRS端口序号、目标信号数据的层数及被干扰的目标信号数据所在层的序号;
所述指示信息还可以指示以下三种信息中的仅仅一种:干扰终端所使用的DMRS端口、干扰信号所使用的PMI、干扰信号所使用的PMI的存储序号。
当所述指示信息包括干扰信号使用的PMI的存储序号时,基站获取针对所述目标终端的干扰信号使用的PMI的存储序号,包括:
获取目标信号使用的PMI、目标信号使用的秩、干扰信号使用的PMI、干扰信号使用的秩,以及干扰信号使用的第一信息对照表;
基于所述目标信号使用的PMI、目标信号使用的秩、干扰信号使用的PMI、干扰信号使用的秩,查找所述第一信息对照表,获得干扰信号使用的PMI的存储序号;
这里,干扰信号使用的秩与目标信号使用的秩相同;
所述第一信息对照表为干扰信号所使用的PMI及使用的PMI的存储序号的对照表。
所述执行信息中包含的数据传输方式既可以为MUST方式,也可以为非MUST方式;
当所述数据传输方式为MUST方式时;
相应的,所述MUST使用的PRB粒度可以为:资源块组(RBG,Reference Block Group)、或子带(subband)、或基站RRC配置的PRB Group;
通过DCI信令动态指示PRB粒度为:全带宽、或系统预定的子带、或自定义PRB粒度。
在一实施例中,当目标终端为传输分集时,干扰终端也为传输分集。
在一实施例中,所述目标信号使用的预编码和干扰信号对应预编码的映射关系,具体可以是小区参考信号(CRS,Cell-specific Reference Signals)传输模式使用的分组;分组原则,如:波束夹角小于等于X。
在一实施例中,所述方法还包括:当所述数据传输方式为MUST时,按照预定准则,确定所述目标终端所使用的DMRS端口序号为第一端口号、干扰终端所使用的DMRS端口序号为第二端口号,以基于所述第一端口号及所述第二端口号进行数据发送;其中,所述目标终端所使用的DMRS端口序号与所述干扰终端所使用的DMRS端口序号一一对应;
在一实施例中,当目标终端及干扰终端各有一个,目标终端及干扰终端使用的DMRS端口均为一个时,按照预定准则,确定所述目标终端使用的DMRS端口序号为7,且所述干扰终端使用的DMRS端口序号为8;
或者,按照预定准则,确定所述目标终端使用的DMRS端口序号为7,且所述干扰终端使用的DMRS端口序号为9;
或者,按照预定准则,确定所述目标终端使用的DMRS端口序号为7,且所述干扰终端使用的DMRS端口序号为10;
或者,按照预定准则,确定所述目标终端使用的DMRS端口序号为8,且所述干扰终端使用的DMRS端口序号为7;
或者,按照预定准则,确定所述目标终端使用的DMRS端口序号为8, 且所述干扰终端使用的DMRS端口序号为9;
或者,按照预定准则,确定所述目标终端使用的DMRS端口序号为8,且所述干扰终端使用的DMRS端口序号为10;
当目标终端及干扰终端使用的DMRS端口均为两个时,按照预定准则,确定所述目标终端使用的DMRS端口序号为7和8,且所述干扰终端使用的DMRS端口序号为7和8;
或者,按照预定准则,确定所述目标终端使用的DMRS端口序号为7和8,且所述干扰终端使用的DMRS端口序号为9和10;
或者,按照预定准则,确定所述目标终端使用的DMRS端口序号为7和9,且所述干扰终端使用的DMRS端口序号为8和10;
或者,按照预定准则,确定所述目标终端使用的DMRS端口序号为8和10,且所述干扰终端使用的DMRS端口序号为7和9;
这里,需要说明的是,目标终端及干扰终端使用的DMRS端口均为两个的情况包括两种:一种是目标终端及干扰终端各有一个,且分别使用两个端口;另一种情况是目标终端有一个,而干扰终端有两个,如第一干扰终端及第二干扰终端;而对于干扰终端有两个的情况,每个干扰终端各有一个端口,且使用的DMRS端口序号分别为干扰终端可使用的两个DMRS端口序号中的一个,具体如下:
按照预定准则,所述目标终端使用的DMRS端口序号为7和8,且第一干扰终端使用的DMRS端口序号为7,第二干扰终端使用的DMRS端口序号是8;
或者,按照预定准则,所述目标终端使用的DMRS端口序号为7和8,且第一干扰终端使用的DMRS端口序号为9,第二干扰终端使用的DMRS端口序号为10;
或者,按照预定准则,所述目标终端使用的DMRS端口序号为9和10,且第一干扰终端使用的DMRS端口序号为7,第二干扰终端使用的DMRS 端口序号为8;
或者,按照预定准则,所述目标终端使用的DMRS端口序号为7和9,且第一干扰终端使用的DMRS端口序号为8,第二干扰终端使用的DMRS端口序号为10;
或者,按照预定准则,所述目标终端使用的端口序号为8和10,且第一干扰终端使用的DMRS端口序号为7,第二干扰终端使用的DMRS端口序号为9;
当目标终端及干扰终端各有一个,目标终端使用的DMRS端口为两个,且干扰终端使用的DMRS端口为一个时,按照预定准则,确定所述目标终端使用的DMRS端口序号为7和8,且所述干扰终端使用的DMRS端口序号为7;
或者,按照预定准则,确定所述目标终端使用的DMRS端口序号为7和8,且所述干扰终端使用的DMRS端口序号为8;
或者,按照预定准则,确定所述目标终端使用的DMRS端口序号为7和8,且所述干扰终端使用的DMRS端口序号为9;
或者,按照预定准则,确定所述目标终端使用的DMRS端口序号为7和8,且所述干扰终端使用的DMRS端口序号为10;
或者,按照预定准则,确定所述目标终端使用的DMRS端口序号为7和9,且所述干扰终端使用的DMRS端口序号为8;
或者,按照预定准则,确定所述目标终端使用的DMRS端口序号为7和9,且所述干扰终端使用的DMRS端口序号为10;
或者,按照预定准则,确定所述目标终端使用的DMRS端口序号为8和10,且所述干扰终端使用的DMRS端口序号为7;
或者,按照预定准则,确定所述目标终端使用的DMRS端口序号为8和10,且所述干扰终端使用的DMRS端口序号为9;
或者,按照预定准则,确定所述目标终端使用的DMRS端口序号为9 和10,且所述干扰终端使用的DMRS端口序号为7;
或者,按照预定准则,确定所述目标终端使用的DMRS端口序号为9和10,且所述干扰终端使用的DMRS端口序号为8;
或者,按照预定准则,确定所述目标终端使用的DMRS端口序号为9和10,且所述干扰终端使用的DMRS端口序号为9;
或者,按照预定准则,确定所述目标终端使用的DMRS端口序号为9和10,且所述干扰终端使用的DMRS端口序号为10;
这里需要说明的是,当基站确定所述目标终端使用的DMRS端口序号及所述干扰终端使用的DMRS端口序号,并基于确定的端口序号进行数据发送时,相应的指示信息中即使不包括干扰终端使用的DMRS端口序号,目标终端也能依据所述预定准则及自身使用的DMRS端口序号获取。
在一实施例中,当数据传输方式为非MUST方式(常规模式)时,其余MUST方式比特用于指示常规模式下哪些PRB为MUST方式,且该MUST方式为预定义模式;
当数据传输方式为MUST方式时,所述MUST方式使用的信息(干扰层、预编码、端口、功率、调制、颗粒度、预定义PRB中至少之一)为RRC配置集合,通过DCI信令动态选择配置的集合,如:在所有DCI中增加2比特,00表示常规传输模式,01表示第一MUST方式,10表示第二MUST方式,11表示第三MUST方式;其中,第一、第二、第三MUST方式配置参数为RRC配置。
步骤102:发送所述指示信息给所述目标终端,以使所述目标终端在进行多用户叠加的数据接收时基于所述指示信息进行干扰信息消除。
应用本发明上述实施例,基站将目标终端删除干扰所需的信息以指示信息的方式发送给目标终端,以使所述目标终端在进行多用户叠加的数据接收时基于所述指示信息进行干扰信息消除,在MUST技术实际特征的基础上,尽可能剔除冗余的信息,以达到降低传输信息开销的目的,在保持 对现有LTE信令影响不大的情况下,通过传输下行MUST参数信息,提高MUST系统的干扰消除性能。
实施例二
图2为本发明实施例中信息传输方法流程示意图,所述方法应用于基站,如图2所示,本发明实施例中信息传输方法包括:
步骤201:获取针对目标终端的指示信息。
这里,所述指示信息用于所述目标终端在进行多用户叠加的数据接收时基于所述指示信息进行干扰消除。
所述指示信息为:干扰存在标识、干扰信号使用的调制阶数、干扰终端使用的DMRS端口、干扰信号使用的扰码ID、干扰信号数据的层数。
目标信号数据的层数为1。干扰信号数据的层数为1。
所述指示信息的开销一共3bit;其中,干扰存在标识和调试方式联合编码开销为2it,如表2.1所示。干扰终端使用的DMRS端口、干扰信号使用的扰码ID、干扰信号数据的层数联合编码的开销为1bit。
表2.1干扰存在标识和调试阶数的联合编码(开销为2bit)
Figure PCTCN2017083820-appb-000001
表2.2干扰终端的DMRS端口序号、扰码ID和层数的联合编码(开销 为lbit)
Figure PCTCN2017083820-appb-000002
表2.2中,如果目标终端和干扰终端的DMRS端口相同时,则两者的SCID不同。如果目标终端和干扰终端的DMRS端口不相同时,则两者的SCID相同。
步骤202:发送所述指示信息给所述目标终端,以使所述目标终端在进行多用户叠加的数据接收时基于所述指示信息进行干扰信息消除。
实施例三
图3为本发明实施例中信息传输方法流程示意图,所述方法应用于基站,如图3所示,本发明实施例中信息传输方法包括:
步骤301:获取针对目标终端的指示信息。
这里,所述指示信息用于所述目标终端在进行多用户叠加的数据接收时基于所述指示信息进行干扰消除。
所述指示信息为:干扰存在标识、干扰终端使用的DMRS端口序号、干扰信号使用的调制阶数。
目标信号的数据层数目为1。干扰信号的数据层数目为1。
所述指示信息的开销一共4bit;其中,干扰存在标识的开销为lbit,调试方式的开销为2it;DMRS端口序号的开销为lbit;如下表3.1至3.3所示。
表3.1干扰终端的干扰存在(开销为1bit)
Figure PCTCN2017083820-appb-000003
表3.2干扰终端的调试方式(开销为2bit)
Figure PCTCN2017083820-appb-000004
Figure PCTCN2017083820-appb-000005
表3.3干扰终端的DMRS端口序号、扰码ID(SCID,Scrambling ID)和层数的联合编码(开销为1bit)
Figure PCTCN2017083820-appb-000006
Figure PCTCN2017083820-appb-000007
表3.2中,如果目标终端和干扰终端的DMRS端口序号相同时,则两者的SCID不同。如果目标终端和干扰终端的DMRS端口序号不相同时,则两者的SCID相同。
步骤302:发送所述指示信息给所述目标终端,以使所述目标终端在进行多用户叠加的数据接收时基于所述指示信息进行干扰信息消除。
实施例四
图4为本发明实施例中信息传输方法流程示意图,所述方法应用于基站,如图4所示,本发明实施例中信息传输方法包括:
步骤401:获取针对目标终端的指示信息。
这里,所述指示信息用于所述目标终端在进行多用户叠加的数据接收 时基于所述指示信息进行干扰消除。
所述指示信息为:干扰存在标识、干扰终端使用的DMRS端口序号、干扰信号使用的调制阶数。
目标信号的数据层数目为1。干扰信号的数据层数目为1。
所述指示信息的开销一共4bit;其中,调试方式的开销为2it;干扰存在标识和干扰终端的DMRS端口序号的联合编码的开销为2bit;以主叫(MO,Mobile Origination Call)干扰终端为例,如下表4.1至4.2所示。
表4.1干扰终端的调试方式(开销为2bit)
Figure PCTCN2017083820-appb-000008
表4.2干扰存在标识、干扰终端的DMRS端口序号、扰码ID和层数的联合编码(开销为2bit)
Figure PCTCN2017083820-appb-000009
Figure PCTCN2017083820-appb-000010
Figure PCTCN2017083820-appb-000011
Figure PCTCN2017083820-appb-000012
表4.2中,如果目标终端和干扰终端的DMRS端口序号相同时,则两者的SCID不同。
步骤402:发送所述指示信息给所述目标终端,以使所述目标终端在进行多用户叠加的数据接收时基于所述指示信息进行干扰信息消除。
实施例五
图5为本发明实施例中信息传输方法流程示意图,所述方法应用于基站,如图5所示,本发明实施例中信息传输方法包括:
步骤501:获取针对目标终端的指示信息。
这里,所述指示信息用于所述目标终端在进行多用户叠加的数据接收时基于所述指示信息进行干扰消除。
所述指示信息为:干扰存在标识、干扰终端使用的DMRS端口序号、干扰信号使用的调制阶数。
目标信号的数据层数目为1或者2。干扰信号的数据层数目为1或者2。
所述指示信息的开销一共4bit;其中,干扰存在标识和调试阶数联合编 码开销为2it;DMRS端口序号开销为2bit;如下表5.1至5.3所示。
表5.1干扰终端的干扰存在和调试阶数的联合编码(开销为2bit)
Figure PCTCN2017083820-appb-000013
表5.2干扰终端的DMRS端口序号、扰码ID和层数的联合编码(目标终端的秩为1)(开销为2bit)
Figure PCTCN2017083820-appb-000014
Figure PCTCN2017083820-appb-000015
Figure PCTCN2017083820-appb-000016
Figure PCTCN2017083820-appb-000017
表5.2中,如果目标终端和干扰终端的DMRS端口序号相同时,则两者的SCID不同。
表5.3干扰终端的DMRS端口序号(目标终端的秩为2)(开销为2bit)
Figure PCTCN2017083820-appb-000018
Figure PCTCN2017083820-appb-000019
表5.3中,如果目标终端和干扰终端的DMRS端口序号相同时,则两者的SCID不同。
步骤502:发送所述指示信息给所述目标终端,以使所述目标终端在进行多用户叠加的数据接收时基于所述指示信息进行干扰信息消除。
实施例六
图6为本发明实施例中信息传输方法流程示意图,所述方法应用于基站,如图6所示,本发明实施例中信息传输方法包括:
步骤601:获取针对目标终端的指示信息。
这里,所述指示信息用于所述目标终端在进行多用户叠加的数据接收时基于所述指示信息进行干扰消除。
所述指示信息为:干扰存在标识、干扰终端使用的DMRS端口序号、干扰信号使用的调制阶数。
目标信号的数据层数目为1或者2。干扰信号的数据层数目为1或者2。
所述指示信息的开销一共4bit;其中,调试阶数的开销为2it;干扰存在标识和DMRS端口序号联合编码的开销为2bit;如表6.1至6.3.
表6.1.干扰终端的调试方式(开销为2bit)
Figure PCTCN2017083820-appb-000020
表6.2.干扰存在标识、干扰终端的DMRS端口序号、数据层数和SCID的联合编码(目标终端的秩为1)(开销为2bit)
Figure PCTCN2017083820-appb-000021
Figure PCTCN2017083820-appb-000022
Figure PCTCN2017083820-appb-000023
Figure PCTCN2017083820-appb-000024
表6.2中,如果目标终端和干扰终端的DMRS端口序号相同时,则两者的SCID不同。如果目标终端和干扰终端的DMRS端口序号不相同时,则两者的SCID相同。
表6.3.干扰终端的DMRS端口序号、扰码ID和层数的联合编码(目标终端的秩为2)(开销为2bit)
Figure PCTCN2017083820-appb-000025
Figure PCTCN2017083820-appb-000026
表6.3中,如果目标终端和干扰终端的DMRS端口序号相同时,则两 者的SCID不同。
步骤602:发送所述指示信息给所述目标终端,以使所述目标终端在进行多用户叠加的数据接收时基于所述指示信息进行干扰信息消除。
实施例七
当1个码字流使能,且目标终端为1层时,目标终端使用的端口为port 7或port 8。
实施例八
图7为本发明实施例中信息传输方法流程示意图,所述方法应用于基站,如图7所示,本发明实施例中信息传输方法包括:
步骤801:获取针对目标终端的指示信息。
这里,所述指示信息用于所述目标终端在进行多用户叠加的数据接收时基于所述指示信息进行干扰消除。
所述指示信息为:干扰存在标识、干扰终端使用的DMRS端口序号、干扰信号使用的调制阶数。
目标信号的数据层数目为1或者2。干扰信号的数据层数目为1或者2。
所述指示信息还包括:目标终端使用的DMRS端口序号。
干扰存在标识、干扰信号使用的调制阶数信息的指示参见前述实施例的相关描述,这里不再赘述。
指示干扰终端DMRS信息和目标终端DMRS信息的联合编码如表8.1至8.2所示。
表8.1干扰终端DMRS信息和目标终端DMRS信息的联合编码(单码字流使能)(开销为3bit)
Figure PCTCN2017083820-appb-000027
Figure PCTCN2017083820-appb-000028
Figure PCTCN2017083820-appb-000029
表8.1中,如果目标终端和干扰终端的DMRS端口序号相同时,则两者的SCID不同。如果目标终端和干扰终端的DMRS端口序号不相同时,则两者的SCID相同。表8.1中的port指DMRS端口。
表8.2干扰终端DMRS信息和目标终端DMRS信息的联合编码(双码字流使能)(开销为3bit)
Figure PCTCN2017083820-appb-000030
Figure PCTCN2017083820-appb-000031
表8.2中的port指DMRS端口。
步骤802:发送所述指示信息给所述目标终端,以使所述目标终端在进行多用户叠加的数据接收时基于所述指示信息进行干扰信息消除。
实施例九
图8为本发明实施例中信息传输方法流程示意图,所述方法应用于基 站,如图8所示,本发明实施例中信息传输方法包括:
步骤901:获取针对目标终端的指示信息。
这里,所述指示信息用于所述目标终端在进行多用户叠加的数据接收时基于所述指示信息进行干扰消除。
所述指示信息为:干扰存在标识、干扰终端使用的DMRS端口序号、干扰信号使用的调制阶数。
目标信号的数据层数目为1或者2。干扰信号的数据层数目为1或者2。
所述指示信息还包括:目标终端使用的DMRS端口序号。
干扰存在标识、干扰信号使用的调制阶数信息的指示参见前述实施例。
指示干扰终端DMRS信息和目标终端DMRS信息的联合编码如表9.1至9.2所示,或者如表9.1和9.3所示。
表9.1干扰终端DMRS信息和目标终端DMRS信息的联合编码(单码字流使能)(开销为3bit)
Figure PCTCN2017083820-appb-000032
Figure PCTCN2017083820-appb-000033
表9.2中的port指DMRS端口,SCID可以根据需要设置。目标用户的nSCID和干扰用户的nSCID是相同的,或者是不同的;nSCID为约定值,如:在有干扰场景固定为0或1;
表9.2干扰终端DMRS信息和目标终端DMRS信息的联合编码(双码字流使能)(开销为3bit)
Figure PCTCN2017083820-appb-000034
表9.2中的port指DMRS端口,SCID可以根据需要设置。目标用户的nSCID和干扰用户的nSCID是相同的,或者是不同的;nSCID为约定值,如:在有干扰场景固定为0或1。
表9.3干扰终端DMRS信息和目标终端DMRS信息的联合编码(两码字流使能)(开销为3bit)
Figure PCTCN2017083820-appb-000035
Figure PCTCN2017083820-appb-000036
Figure PCTCN2017083820-appb-000037
步骤902:发送所述指示信息给所述目标终端,以使所述目标终端在进行多用户叠加的数据接收时基于所述指示信息进行干扰信息消除。
实施例十
目标终端DMRS端口信息的如表10.1和10.2所示。
表10.1目标终端DMRS端口信息(单码字流使能)(开销为3bit)
Figure PCTCN2017083820-appb-000038
Figure PCTCN2017083820-appb-000039
表10.2目标终端DMRS端口信息(两个码字流使能)(开销为2bit)
Figure PCTCN2017083820-appb-000040
实施例十一
图9为本发明实施例中信息传输方法流程示意图,所述方法应用于目标终端,如图9所示,本发明实施例中信息传输方法包括:
步骤1101:接收基站发送的指示信息。
这里,所述指示信息可以采用独立编码或联合编码的方式单独指示某种信息,或者同时采用独立编码、联合编码的方式联合指示多种信息,所述指示信息包括以下至少之一:
数据传输方式、干扰终端使用的DMRS端口序号、干扰信号使用的预编码信息、MUST使用的PRB粒度、目标信号数据的层数及被干扰的目标信号数据所在层的序号、目标终端使用的DMRS端口序号。
这里,需要说明的是,本实施例中所述指示信息同实施例一中所描述的指示信息,在此不再重复赘述。
在实施例中,所述指示信息包括干扰信号使用的PMI的存储序号;
相应的,所述接收基站发送的指示信息之后,所述方法还包括:
目标终端获取目标信号使用的PMI、目标信号使用的秩,以及目标信号使用的第一信息对照表;
基于所述干扰信号使用的PMI的存储序号、目标信号使用的PMI、目标信号使用的秩,查找所述第一信息对照表,获得干扰信号使用的PMI;
这里,所述第一信息对照表为干扰信号所使用的PMI的存储序号与干扰信号所使用的PMI的对照表。
在实施例中,所述指示信息包括:数据传输方式及目标终端使用的DMRS端口序号;其中,所述数据传输方式为MUST方式;
相应的,所述接收基站发送的指示信息之后,所述方法还包括:
获取所述指示信息中目标终端使用的DMRS端口序号,并依据所述目标终端使用的DMRS端口序号获得干扰终端使用的DMRS端口序号。
步骤1102:在进行多用户叠加的数据接收时基于所述指示信息进行干扰信息消除。
在进行多用户叠加的数据接收时,目标终端获取所述指示信息后基于所述指示信息进行干扰信息消除的过程属于现有技术,此处不作赘述。
应用本发明上述实施例,目标终端接收基站发送的删除干扰所需的指示信息,以在进行多用户叠加的数据接收时基于所述指示信息进行干扰信息消除,在MUST技术实际特征的基础上,尽可能剔除冗余的信息,以达到降低传输信息开销的目的,在保持对现有LTE信令影响不大的情况下,通过传输下行MUST参数信息,提高MUST系统的干扰消除性能。
实施例十二
图10为本发明实施例中信息传输方法流程示意图,如图10所示,本发明实施例中信息传输方法包括:
步骤1201:基站获取针对目标终端的指示信息,所述指示信息包括数据传输方式。
这里,所述指示信息用于所述目标终端在进行多用户叠加的数据接收时基于所述指示信息进行干扰消除。
在本发明实施例中,所述指示信息仅包括数据传输方式,且采用独立编码的方式指示所述数据传输方式,所述指示信息为1比特;
可以依据实际需要,设置当所述指示信息的比特数值为1时,基站到目标终端的传输方式为MUST;
当所述指示信息的比特数值为0时,基站到目标终端的传输方式为非MUST;
当然,亦可以设置当所述指示信息的比特数值为0时,基站到目标终端的传输方式为MUST;
当所述指示信息的比特数值为1时,基站到目标终端的传输方式为非MUST。
步骤1202:发送所述指示信息给所述目标终端。
在本实施例中,基站采用很小的开销指示传输方式,目标终端通过基站发送的指示信息可直接获得目标信号数据的传输方式,进而可获知在传输方式为MUST的情况下,尽可能剔除冗余的干扰信息。
实施例十三
图11为本发明实施例中信息传输方法流程示意图,如图11所示,本发明实施例中信息传输方法包括:
步骤1301:基站获取针对目标终端的指示信息,所述指示信息包括目标信号数据的层数及被干扰的目标信号数据所在层的序号。
这里,所述指示信息用于所述目标终端在进行多用户叠加的数据接收时基于所述指示信息进行干扰消除。
在本发明实施例中,所述指示信息包括2层目标信号数据及被干扰的目标信号数据所在层的序号,采用联合编码的方式进行信息指示,所述指示信息的开销为2比特;
可以依据实际需要,设置当指示信息的第一比特的数值为1时指示:所述目标信号的第一层信号被其它信号干扰;
当指示信息的第一比特的数值为0时指示:所述目标信号的第一层信号没有被其它信号干扰;
当指示信息的第二比特的数值为1时指示:所述目标信号的第二层信号被其它信号干扰;
当指示信息的第二比特的数值为0时指示:所述目标信号的第二层信号没有被其他信号干扰;
或者,设置当指示信息的第一比特的数值为0时指示:所述目标信号的第一层信号被其它信号干扰;
当指示信息的第一比特的数值为1时指示:所述目标信号的第一层信号没有被其它信号干扰;
当指示信息的第二比特的数值为0时指示:所述目标信号的第二层信号被其它信号干扰;
当指示信息的第二比特的数值为1时指示:所述目标信号的第二层信号没有被其他信号干扰。
步骤1302:发送所述指示信息给所述目标终端。
在本实施例中,基站采用很小的开销指示目标信号数据的层数及被干扰的目标信号数据所在层的序号,目标终端通过基站发送的指示信息可直接获得目标信号数据的层数及被干扰的目标信号数据所在层的序号,进而可尽可能剔除冗余的干扰信息,有效提高系统的干扰消除性能。
实施例十四
图12为本发明实施例中信息传输方法流程示意图,如图12所示,本发明实施例中信息传输方法包括:
步骤1401:基站获取针对目标终端的指示信息,所述指示信息包括数据传输方式、目标信号数据的层数及被干扰的目标信号数据所在层的序号。
这里,所述指示信息用于所述目标终端在进行多用户叠加的数据接收时基于所述指示信息进行干扰消除。
在本发明实施例中,所述指示信息包括数据传输方式、2层目标信号数据及被干扰的目标信号数据所在层的序号,所述指示信息的开销为2比特;
可以依据实际需要,设置当所述指示信息的第一比特的数值为0时指示目标信号的第一层信号被其他信号干扰;当为1时指示目标信号的第一层信号没有被其他信号干扰;
当所述指示信息的第二比特的数值为0时指示目标信号的第二层信号被其他信号干扰;当为1时指示目标信号的第二层信号没有被其他信号干扰;
当所述指示信息的第一比特的数值或第二比特的数值都为0时,指示从基站到目标终端的数据传输方式是MUST;
当所述指示信息的第一比特的数值和第二比特的数值都为1时,指示从基站到目标终端的数据传输方式为非MUST。
步骤1402:发送所述指示信息给所述目标终端。
在本实施例中,基站采用很小的开销指示数据传输方式、目标信号数 据的层数及被干扰的目标信号数据所在层的序号,目标终端通过基站发送的指示信息可直接获得上述信息,进而在进行MUST传输的情况下可尽可能剔除冗余的干扰信息,有效提高系统的干扰消除性能。
实施例十五
图13为本发明实施例中信息传输方法流程示意图,如图13所示,本发明实施例中信息传输方法包括:
步骤1501:基站获取针对目标终端的指示信息,所述指示信息包括目标信号数据的层数及被干扰的目标信号数据所在层的序号、目标终端使用的DMRS端口序号。
这里,所述指示信息用于所述目标终端在进行多用户叠加的数据接收时基于所述指示信息进行干扰消除。
在本实施例中,所述指示信息的开销为2比特,不同的比特值对应指示不同的信息内容,具体参见表1:
Figure PCTCN2017083820-appb-000041
Figure PCTCN2017083820-appb-000042
表1
步骤1502:发送所述指示信息给所述目标终端。
实施例十六
图14为本发明实施例中信息传输方法流程示意图,如图14所示,本发明实施例中信息传输方法包括:
步骤1601:基站获取针对目标终端的指示信息,所述指示信息包括干扰终端使用的DMRS端口序号。
在本实施例中,所述指示信息的开销为2比特;
当所述指示信息的第一比特数值为0且第二比特数值为0时,所述指示信息指示:干扰终端所使用的DMRS端口序号为7;
当所述指示信息的第一比特数值为0且第二比特数值为1时,所述指示信息指示:干扰终端所使用的DMRS端口序号为8;
当所述指示信息的第一比特数值为1且第二比特数值为0时,所述指示信息指示:干扰终端所使用的DMRS端口序号为9;
当所述指示信息的第一比特数值为1且第二比特数值为1时,所述指示信息指示:干扰终端所使用的DMRS端口序号为10。
这里,需要说明的是,采用如上编码指示方式可进行不同的信息指示,如:当所述指示信息包括干扰信号所使用的预编码权值序号(PMI)时,可采用同样的方式进行如下设置:
在实施例中,基站的发射天线端口数目为2;
当指示信息的第一比特数值为0且第二比特数值为0时指示:干扰信号所使用的PMI为0;
当指示信息的第一比特数值为0且第二比特数值为1时指示:干扰信号所使用的PMI为1;
当指示信息的第一比特数值为1且第二比特数值为0时指示:干扰信 号所使用的PMI为2;
当指示信息的第一比特数值为1且第二比特数值为1时指示:干扰信号所使用的PMI为3。
或者,当所述指示信息包括干扰信号所使用的PMI的存储序号时,可采用同样的方式进行如下设置:
当指示信息的第一比特数值为0且第二比特数值为0时指示:干扰信号所使用的PMI使用的存储序号为0(或1);
当指示信息的第一比特数值为0且第二比特数值为1时指示:干扰信号所使用的PMI使用的存储序号为1(或2);
当指示信息的第一比特数值为1且第二比特数值为0时指示:干扰信号所使用的PMI使用的存储序号为2(或3);
当指示信息的第一比特数值为1且第二比特数值为1时指示:干扰信号所使用的PMI使用的存储序号为3(或4)。
步骤1602:发送所述指示信息给所述目标终端。
实施例十七
图15为本发明实施例中信息传输方法流程示意图,如图15所示,本发明实施例中信息传输方法包括:
步骤1701:基站获取针对目标终端的指示信息,所述指示信息包括MUST使用的PRB粒度。
这里,所述指示信息用于所述目标终端在进行多用户叠加的数据接收时基于所述指示信息进行干扰消除。
在本实施例中,所述指示信息的开销为2比特,在实际应用中,可进行如下设置:
当所述指示信息的第一比特数值为0并且第二比特数值为0时,所述指示信息指示MUST传输所使用的PRB粒度是全带宽,如图16a所示;
当所述指示信息的第一比特数值为0并且第二比特数值为1时,所述 指示信息指示MUST传输所使用的PRB粒度是系统预定的子带,如图16b所示;
当所述指示信息的第一比特数值为1并且第二比特数值为0时,所述指示信息指示MUST传输所使用的PRB粒度是1,如图16c所示;
当所述指示信息的第一比特数值为1并且第二比特数值为1时,所述指示信息指示MUST传输所使用的PRB粒度是2,如图16d所示。
步骤1702:发送所述指示信息给所述目标终端。
实施例十八
图17为本发明实施例中目标终端获取干扰信号使用的PMI的方法流程示意图,如图17所示,本发明实施例中目标终端获取干扰信号使用的PMI的方法包括:
步骤1801:获取目标信号使用的PMI、目标信号使用的秩、干扰信号使用的PMI的存储序号,以及目标信号使用的第一信息对照表。
在本实施例中,发射天线数目为4TX,基于CRS端口传输数据,目标信号使用的PMI即目标信号所使用的预编码权值序号p2,目标信号使用的秩为r2,干扰信号使用的PMI的存储序号为lM,所述第一信息对照表包括表A1及表A2。
步骤1802:基于所述干扰信号使用的PMI的存储序号、目标信号使用的PMI、目标信号使用的秩,查找所述第一信息对照表,获得干扰信号使用的PMI。
在本实施例中,本步骤包括:
首先,根据目标信号所使用的秩r2确定查找表A中的表A1还是表A2;
其次,根据目标信号所用的预编码权值序号p2,找到所在行使用的干扰信号所使用的PMI序列L;
然后,根据指示信息所指示的存储序号lM找到序列L中的第lM个PMI作为干扰信号所使用的预编码序号PMI;
其中,表A1为秩为1的码字配对情况表,表A2为秩为2的码字配对情况表,如下所示:
目标信号使用的PMI 干扰信号使用的PMI
0 0、9、11
1 1、8、10
2 2、9、11
3 3、8、10
4 4
5 5
6 6
7 7
8 1、3、8
9 0、2、9
10 1、3、10
11 0、2、11
12 12
13 13
14 14
15 15
表A1
Figure PCTCN2017083820-appb-000043
Figure PCTCN2017083820-appb-000044
表A2
在表A1中每一行中,目标信号使用的PMI指示的码字和干扰信号使用的PMI指示的码字之间的夹角都小于或等于45度。
在表A2中每一行中,目标信号使用的PMI指示的码字和干扰信号使用的PMI指示的码字之间的夹角都小于或等于45度。
实施例十九
图18为本发明实施例中信息传输装置组成结构示意图,所述装置位于基站,如图18所示,本发明实施例中信息传输装置组成包括:获取模块131及发送模块132;其中,
所述获取模块131,配置为获取针对目标终端的指示信息;
所述发送模块132,配置为发送所述指示信息给所述目标终端,以使所述目标终端在进行多用户叠加的数据接收时基于所述指示信息进行干扰消除;
这里,所述指示信息可以采用独立编码或联合编码的方式单独指示某种信息,或者同时采用独立编码、联合编码的方式联合指示多种信息,所述指示信息包括以下至少之一:
数据传输方式、干扰终端使用的DMRS端口序号、干扰信号使用的秩、干扰信号使用的预编码信息、多用户叠加传输MUST使用的PRB粒度、目标信号数据的层数及被干扰的目标信号数据所在层的序号;
其中,所述干扰信号使用的预编码信息为:干扰信号使用的PMI,或者干扰信号使用的PMI的存储序号;所述干扰信号使用的PMI是非负整数;所述干扰信号使用的PMI的存储序号是非负整数。
所述数据传输方式包括:MUST方式及非MUST方式。
这里,需要说明的是,本实施例中所述指示信息同方法实施例一中所描述的指示信息,在此不再重复赘述。
在实施例中,所述指示信息包括干扰信号使用的PMI的存储序号;
相应的,所述获取模块131,还配置为获取目标信号使用的PMI、目标信号使用的秩、干扰信号使用的PMI、干扰信号使用的秩,以及干扰信号使用的第一信息对照表;
基于所述目标信号使用的PMI、目标信号使用的秩、干扰信号使用的PMI、干扰信号使用的秩,查找所述第一信息对照表,获得干扰信号使用的PMI的存储序号。
在实施例中,所述获取模块,还配置为当所述数据传输方式为MUST时,按照预定准则,确定所述目标终端所使用的DMRS端口序号为第一端口号、干扰终端所使用的DMRS端口序号为第二端口号,以基于所述第一端口号及所述第二端口号进行数据发送;
其中,所述目标终端所使用的DMRS端口序号与所述干扰终端所使用的DMRS端口序号一一对应。
具体的,所述获取模块,还配置为当目标终端及干扰终端使用的DMRS端口均为一个时,按照预定准则,确定所述目标终端使用的DMRS端口序号为7,且所述干扰终端使用的DMRS端口序号为8;
或者,按照预定准则,确定所述目标终端使用的DMRS端口序号为7, 且所述干扰终端使用的DMRS端口序号为9;
或者,按照预定准则,确定所述目标终端使用的DMRS端口序号为7,且所述干扰终端使用的DMRS端口序号为10;
或者,按照预定准则,确定所述目标终端使用的DMRS端口序号为8,且所述干扰终端使用的DMRS端口序号为7;
或者,按照预定准则,确定所述目标终端使用的DMRS端口序号为8,且所述干扰终端使用的DMRS端口序号为9;
或者,按照预定准则,确定所述目标终端使用的DMRS端口序号为8,且所述干扰终端使用的DMRS端口序号为10;
当目标终端及干扰终端使用的DMRS端口均为两个时,按照预定准则,确定所述目标终端使用的DMRS端口序号为7和8,且所述干扰终端使用的DMRS端口序号为7和8;
或者,按照预定准则,确定所述目标终端使用的DMRS端口序号为7和8,且所述干扰终端使用的DMRS端口序号为9和10;
或者,按照预定准则,确定所述目标终端使用的DMRS端口序号为7和9,且所述干扰终端使用的DMRS端口序号为8和10;
或者,按照预定准则,确定所述目标终端使用的DMRS端口序号为8和10,且所述干扰终端使用的DMRS端口序号为7和9;
当目标终端使用的DMRS端口为两个,且干扰终端使用的DMRS端口为一个时,按照预定准则,确定所述目标终端使用的DMRS端口序号为7和8,且所述干扰终端使用的DMRS端口序号为7;
或者,按照预定准则,确定所述目标终端使用的DMRS端口序号为7和8,且所述干扰终端使用的DMRS端口序号为8;
或者,按照预定准则,确定所述目标终端使用的DMRS端口序号为7和8,且所述干扰终端使用的DMRS端口序号为9;
或者,按照预定准则,确定所述目标终端使用的DMRS端口序号为7 和8,且所述干扰终端使用的DMRS端口序号为10;
或者,按照预定准则,确定所述目标终端使用的DMRS端口序号为7和9,且所述干扰终端使用的DMRS端口序号为8;
或者,按照预定准则,确定所述目标终端使用的DMRS端口序号为7和9,且所述干扰终端使用的DMRS端口序号为10;
或者,按照预定准则,确定所述目标终端使用的DMRS端口序号为8和10,且所述干扰终端使用的DMRS端口序号为7;
或者,按照预定准则,确定所述目标终端使用的DMRS端口序号为8和10,且所述干扰终端使用的DMRS端口序号为9;
或者,按照预定准则,确定所述目标终端使用的DMRS端口序号为9和10,且所述干扰终端使用的DMRS端口序号为7;
或者,按照预定准则,确定所述目标终端使用的DMRS端口序号为9和10,且所述干扰终端使用的DMRS端口序号为8;
或者,按照预定准则,确定所述目标终端使用的DMRS端口序号为9和10,且所述干扰终端使用的DMRS端口序号为9;
或者,按照预定准则,确定所述目标终端使用的DMRS端口序号为9和10,且所述干扰终端使用的DMRS端口序号为10。
实施例二十
图19为本发明实施例中信息传输装置组成结构示意图,所述装置位于基站,如图19所示,本发明实施例中信息传输装置组成包括:获取模块141及发送模块142;其中,
所述获取模块141,配置为获取针对目标终端的指示信息;
所述发送模块142,配置为发送所述指示信息给所述目标终端,以使所述目标终端在进行多用户叠加的数据接收时基于所述指示信息进行干扰消除;
所述指示信息为:干扰终端使用的DMRS端口序号、干扰信号使用的 调制阶数。
所述干扰终端使用的DMRS端口序号的实现描述同实施例十六。
实施例二十一
图20为本发明实施例中信息传输装置组成结构示意图,所述装置位于基站,如图20所示,本发明实施例中信息传输装置组成包括:获取模块151及发送模块152;其中,
所述获取模块151,配置为获取针对目标终端的指示信息;
所述发送模块152,配置为发送所述指示信息给所述目标终端,以使所述目标终端在进行多用户叠加的数据接收时基于所述指示信息进行干扰消除;
所述指示信息为:干扰信号使用的调制阶数。
实施例二十二
图21为本发明实施例中信息传输装置组成结构示意图,所述装置位于目标终端,如图21所示,本发明实施例中信息传输装置组成包括:接收模块161及处理模块162;其中,
所述接收模块161,配置为接收基站发送的指示信息;
所述处理模块162,配置为在进行多用户叠加的数据接收时基于所述指示信息进行干扰信息消除;
这里,所述指示信息可以采用独立编码或联合编码的方式单独指示某种信息,或者同时采用独立编码、联合编码的方式联合指示多种信息,所述指示信息包括以下至少之一:
数据传输方式、干扰终端使用的DMRS端口序号、干扰信号使用的预编码信息、多用户叠加传输MUST使用的PRB粒度、目标信号数据的层数及被干扰的目标信号数据所在层的序号、目标终端使用的DMRS端口序号;
其中,所述干扰信号使用的预编码信息为:干扰信号使用的PMI,或者干扰信号使用的PMI的存储序号;
所述数据传输方式包括:MUST方式及非MUST方式。
这里,需要说明的是,本实施例中所述指示信息同方法实施例一中所描述的指示信息,在此不再重复赘述。
在实施例中,所述指示信息包括干扰信号使用的PMI的存储序号;
相应的,所述处理模块162,还配置为获取目标信号使用的PMI、目标信号使用的秩,以及目标信号使用的第一信息对照表;
基于所述干扰信号使用的PMI的存储序号、目标信号使用的PMI、目标信号使用的秩,查找所述第一信息对照表,获得干扰信号使用的PMI。
在实施例中,所述指示信息包括:数据传输方式及目标终端使用的DMRS端口序号;其中,所述数据传输方式为MUST方式;
相应的,所述处理模块162,还配置为获取所述指示信息中目标终端使用的DMRS端口序号,并依据所述目标终端使用的DMRS端口序号获得干扰终端使用的DMRS端口序号。
实施例二十三
图22为本发明实施例中信息传输装置组成结构示意图,所述装置位于目标终端,如图22所示,本发明实施例中信息传输装置组成包括:接收模块171及处理模块172;其中,
所述接收模块171,配置为接收基站发送的指示信息;
所述处理模块172,配置为在进行多用户叠加的数据接收时基于所述指示信息进行干扰信息消除;
所述指示信息为:干扰终端使用的DMRS端口序号、干扰信号使用的调制阶数。
实施例二十四
图23为本发明实施例中信息传输装置组成结构示意图,所述装置位于目标终端,如图23所示,本发明实施例中信息传输装置组成包括:接收模块181及处理模块182;其中,
所述接收模块181,配置为接收基站发送的指示信息;
所述处理模块182,配置为在进行多用户叠加的数据接收时基于所述指示信息进行干扰信息消除;
所述指示信息为:干扰信号使用的调制阶数。
在本发明实施例信息传输装置中各个模块均可由服务器或终端中的中央处理器(CPU,Central Processing Unit)或数字信号处理器(DSP,Digital Signal Processor)、或现场可编程门阵列(FPGA,Field Programmable Gate Array)、或集成电路(ASIC,Application Specific Integrated Circuit)实现。发送模块、接收模块均可由天线系统实现。
本发明实施例中,所述端口是干扰终端使用的DMRS端口、所述扰码ID是干扰信号使用的扰码ID、所述层数是干扰信号数据的层数。
干扰存在标识和干扰信号使用的调制阶数通过联合编码进行指示。
干扰存在标识和所述端口、所述扰码ID、所述层数通过联合编码进行指示。
如果目标终端和干扰终端的DMRS端口不相同,则目标终端和干扰终端的扰码ID设置为相同。
预定义一个集合,所述集合的元素是物理下行共享信道PDSCH功率参数;所述PDSCH功率参数为第一类PDSCH功率参数或者第二类PDSCH功率参数;通过DCI来指示选择第一类PDSCH功率参数或第二类PDSCH功率参数,根据所述PDSCH功率参数确定发射功率。所述PDSCH功率参数表示合成符号的功率,或者合成符号的分量符号的功率。通过DCI指示一种计算方式,根据所指示的计算方式计算PDSCH功率参数,根据计算得到的PDSCH功率参数确定发射功率。所述计算方式包括,第一类计算方式:基于合成符号所在的PDSCH功率得到所述PDSCH功率参数,第二类计算方式:基于合成符号的分量符号的功率得到所述PDSCH功率参数。
这里需要指出的是:以上涉及装置的描述,与上述方法描述是类似的, 同方法的有益效果描述,不做赘述。对于本发明所述装置实施例中未披露的技术细节,请参照本发明方法实施例的描述。
本发明实施例还提供了一种信息传输装置,该信息传输装置包括:处理器和用于存储能够在处理器上运行的计算机程序的存储器,
其中,所述处理器用于运行所述计算机程序时,本发明实施例的上述信息传输方法。
本发明实施例中,如果以软件功能模块的形式实现上述信息传输方法,并作为独立的产品销售或使用时,也可以存储在一个计算机可读取存储介质中。基于这样的理解,本发明实施例的技术方案本质上或者说对现有技术做出贡献的部分可以以软件产品的形式体现出来,该计算机软件产品存储在一个存储介质中,包括若干指令用以使得一台计算机设备(可以是个人计算机、服务器、或者网络设备等)执行本发明各个实施例所述方法的全部或部分。而前述的存储介质包括:U盘、移动硬盘、只读存储器(Read Only Memory,ROM)、磁碟或者光盘等各种可以存储程序代码的介质。这样,本发明实施例不限制于任何特定的硬件和软件结合。
相应地,本发明实施例还提供一种计算机存储介质,该计算机存储介质中存储有计算机程序,该计算机程序用于执行本发明实施例的上述信息传输方法。
以上所述,仅为本发明的具体实施方式,但本发明的保护范围并不局限于此,任何熟悉本技术领域的技术人员在本发明揭露的技术范围内,可轻易想到变化或替换,都应涵盖在本发明的保护范围之内。因此,本发明的保护范围应以所述权利要求的保护范围为准。
工业实用性
本发明实施例基站获取针对目标终端的指示信息,并发送所述指示信息给所述目标终端;目标终端接收基站发送的指示信息,并在进行多用户叠加的数据接收时基于所述指示信息进行干扰消除。如此,能够利用较少 的开销使得目标终端接收到消除干扰所需要的信息,在保持对LTE信令影响不大的情况下,有效提高MUST系统的干扰消除性能。

Claims (41)

  1. 一种信息传输方法,所述方法包括:
    获取针对目标终端的指示信息;
    发送所述指示信息给所述目标终端,以使所述目标终端在进行多用户叠加的数据接收时基于所述指示信息进行干扰消除。
  2. 根据权利要求1所述的方法,其中,所述指示信息包括以下至少之一:
    数据传输方式、干扰终端使用的解调参考信号DMRS端口序号、干扰信号使用的秩、干扰信号使用的预编码信息、多用户叠加传输MUST使用的物理资源块PRB粒度、目标信号数据的层数及被干扰的目标信号数据所在层的序号。
  3. 根据权利要求1所述的方法,其中,所述指示信息包括以下信息:
    干扰存在标识;
    干扰信号的调制阶数;
    端口、扰码ID、层数的联合编码域信息。
  4. 根据权利要求3所述的方法,其中,
    所述端口是干扰终端使用的DMRS端口、所述扰码ID是干扰信号使用的扰码ID、所述层数是干扰信号数据的层数。
  5. 根据权利要求3所述的方法,其中,
    所述干扰存在标识和干扰信号的调制阶数通过联合编码进行指示。
  6. 根据权利要求3所述的方法,其中,
    所述干扰存在标识和所述端口、所述扰码ID、所述层数通过联合编码进行指示。
  7. 根据权利要求3所述的方法,其中,
    目标终端的DMRS端口信息和干扰终端的DMRS端口信息通过1个信 令联合指示,或者
    目标终端的DMRS端口信息通过1个信令指示,干扰终端的DMRS端口信息通过1个信令指示。
  8. 根据权利要求4或6所述的方法,其中,目标信号数据的层数为1;所述干扰信号数据的层数为1。
  9. 根据权利要求7所述的方法,其中,
    目标终端和干扰终端的DMRS端口号取值集合为{7,8,11,13},或者{7,8}。
  10. 根据权利要求1所述的方法,其中,
    预定义一个集合,所述集合的元素是物理下行共享信道PDSCH功率参数;所述PDSCH功率参数为第一类PDSCH功率参数或者第二类PDSCH功率参数;
    通过下行控制信息DCI来指示选择第一类PDSCH功率参数或第二类PDSCH功率参数,根据所述PDSCH功率参数确定发射功率。
  11. 根据权利要求10所述的方法,其中,
    所述PDSCH功率参数表示合成符号的功率,或者合成符号的分量符号的功率。
  12. 根据权利要求1所述的方法,其中,
    通过DCI指示一种计算方式,根据所指示的计算方式计算PDSCH功率参数,根据计算得到的PDSCH功率参数确定发射功率。
  13. 根据权利要求12所述的方法,其中,
    所述计算方式包括,第一类计算方式:基于合成符号所在的PDSCH功率得到所述PDSCH功率参数,第二类计算方式:基于合成符号的分量符号的功率得到所述PDSCH功率参数。
  14. 根据权利要求2所述的方法,其中,所述干扰信号使用的预编码 信息为:干扰信号使用的预编码矩阵指示PMI,或者干扰信号使用的PMI的存储序号;所述干扰信号使用的PMI是非负整数;所述干扰信号使用的PMI的存储序号是非负整数。
  15. 根据权利要求14所述的方法,其中,所述指示信息包括干扰信号使用的PMI的存储序号;
    相应的,所述获取针对目标终端的指示信息,包括:
    获取目标信号使用的PMI、目标信号使用的秩、干扰信号使用的PMI、干扰信号使用的秩,以及干扰信号使用的第一信息对照表;
    基于所述目标信号使用的PMI、目标信号使用的秩、干扰信号使用的PMI、干扰信号使用的秩,查找所述第一信息对照表,获得干扰信号使用的PMI的存储序号。
  16. 根据权利要求2所述的方法,其中,所述数据传输方式包括:MUST方式及非MUST方式。
  17. 根据权利要求2所述的方法,其中,所述数据传输方式为MUST方式;
    相应的,所述MUST使用的PRB粒度包括三种:全带宽、预定义的子带及自定义PRB粒度。
  18. 根据权利要求1或2所述的方法,其中,所述方法还包括:
    当所述数据传输方式为MUST时,按照预定准则,确定所述目标终端所使用的DMRS端口序号为第一端口号、干扰终端所使用的DMRS端口序号为第二端口号,以基于所述第一端口号及所述第二端口号进行数据发送;
    其中,所述目标终端所使用的DMRS端口序号与所述干扰终端所使用的DMRS端口序号一一对应。
  19. 根据权利要求18所述的方法,其中,所述按照预定准则,确定所述目标终端所使用的DMRS端口序号为第一端口号、干扰终端所使用的 DMRS端口序号为第二端口号,包括:
    当目标终端及干扰终端使用的DMRS端口均为一个时,按照预定准则,确定所述目标终端使用的DMRS端口序号为7,且所述干扰终端使用的DMRS端口序号为8;
    或者,按照预定准则,确定所述目标终端使用的DMRS端口序号为7,且所述干扰终端使用的DMRS端口序号为9;
    或者,按照预定准则,确定所述目标终端使用的DMRS端口序号为7,且所述干扰终端使用的DMRS端口序号为10;
    或者,按照预定准则,确定所述目标终端使用的DMRS端口序号为8,且所述干扰终端使用的DMRS端口序号为7;
    或者,按照预定准则,确定所述目标终端使用的DMRS端口序号为8,且所述干扰终端使用的DMRS端口序号为9;
    或者,按照预定准则,确定所述目标终端使用的DMRS端口序号为8,且所述干扰终端使用的DMRS端口序号为10;
    当目标终端及干扰终端使用的DMRS端口均为两个时,按照预定准则,确定所述目标终端使用的DMRS端口序号为7和8,且所述干扰终端使用的DMRS端口序号为7和8;
    或者,按照预定准则,确定所述目标终端使用的DMRS端口序号为7和8,且所述干扰终端使用的DMRS端口序号为9和10;
    或者,按照预定准则,确定所述目标终端使用的DMRS端口序号为7和9,且所述干扰终端使用的DMRS端口序号为8和10;
    或者,按照预定准则,确定所述目标终端使用的DMRS端口序号为8和10,且所述干扰终端使用的DMRS端口序号为7和9;
    当目标终端使用的DMRS端口为两个,且干扰终端使用的DMRS端口为一个时,按照预定准则,确定所述目标终端使用的DMRS端口序号为7 和8,且所述干扰终端使用的DMRS端口序号为7;
    或者,按照预定准则,确定所述目标终端使用的DMRS端口序号为7和8,且所述干扰终端使用的DMRS端口序号为8;
    或者,按照预定准则,确定所述目标终端使用的DMRS端口序号为7和8,且所述干扰终端使用的DMRS端口序号为9;
    或者,按照预定准则,确定所述目标终端使用的DMRS端口序号为7和8,且所述干扰终端使用的DMRS端口序号为10;
    或者,按照预定准则,确定所述目标终端使用的DMRS端口序号为7和9,且所述干扰终端使用的DMRS端口序号为8;
    或者,按照预定准则,确定所述目标终端使用的DMRS端口序号为7和9,且所述干扰终端使用的DMRS端口序号为10;
    或者,按照预定准则,确定所述目标终端使用的DMRS端口序号为8和10,且所述干扰终端使用的DMRS端口序号为7;
    或者,按照预定准则,确定所述目标终端使用的DMRS端口序号为8和10,且所述干扰终端使用的DMRS端口序号为9;
    或者,按照预定准则,确定所述目标终端使用的DMRS端口序号为9和10,且所述干扰终端使用的DMRS端口序号为7;
    或者,按照预定准则,确定所述目标终端使用的DMRS端口序号为9和10,且所述干扰终端使用的DMRS端口序号为8;
    或者,按照预定准则,确定所述目标终端使用的DMRS端口序号为9和10,且所述干扰终端使用的DMRS端口序号为9;
    或者,按照预定准则,确定所述目标终端使用的DMRS端口序号为9和10,且所述干扰终端使用的DMRS端口序号为10。
  20. 一种信息传输方法,所述方法包括:
    接收基站发送的指示信息;
    在进行多用户叠加的数据接收时基于所述指示信息进行干扰消除。
  21. 根据权利要求20所述的方法,其中,
    根据下行控制信息DCI获得物理下行共享信道PDSCH功率参数,根据获取的所述PDSCH功率参数对接收数据进行解调。
  22. 根据权利要求20所述的方法,其中,
    根据DCI获得一种计算方式,基于所述计算方式计算得到PDSCH功率参数,根据计算得到的所述PDSCH功率参数对接收数据进行解调。
  23. 根据权利要求20所述的方法,其中,所述指示信息包括干扰信号使用的预编码矩阵指示PMI的存储序号;
    相应的,所述接收基站发送的指示信息之后,所述方法还包括:
    获取目标信号使用的PMI、目标信号使用的秩,以及目标信号使用的第一信息对照表;
    基于所述干扰信号使用的PMI的存储序号、目标信号使用的PMI、目标信号使用的秩,查找所述第一信息对照表,获得干扰信号使用的PMI。
  24. 根据权利要求23所述的方法,其中,所述第一信息对照表表现了目标信号使用的PMI和干扰信号使用的PMI的对应关系;所述对应关系是根据所述目标信号使用的PMI所指示的码字和干扰信号使用的PMI所指示的码字之间的夹角确定的。
  25. 根据权利要求24所述的方法,其中,所述指示信息包括:数据传输方式及目标终端使用的DMRS端口序号;其中,所述数据传输方式为MUST方式;
    相应的,所述接收基站发送的指示信息之后,所述方法还包括:
    获取所述指示信息中目标终端使用的DMRS端口序号,并依据所述目标终端使用的DMRS端口序号获得干扰终端使用的DMRS端口序号。
  26. 一种信息传输装置,所述装置位于基站,所述装置包括:获取模 块及发送模块;其中,
    所述获取模块,配置为获取针对目标终端的指示信息;
    所述发送模块,配置为发送所述指示信息给所述目标终端,以使所述目标终端在进行多用户叠加的数据接收时基于所述指示信息进行干扰信息消除。
  27. 根据权利要求26所述的装置,其中,所述指示信息包括以下至少之一:
    数据传输方式、干扰终端使用的解调参考信号DMRS端口序号、干扰信号使用的秩、干扰信号使用的预编码信息、多用户叠加传输MUST使用的物理资源块PRB粒度、目标信号数据的层数及被干扰的目标信号数据所在层的序号。
  28. 根据权利要求26所述的装置,其中,所述指示信息包括以下信息:
    干扰存在标识;
    干扰信号的调制阶数;
    端口、扰码ID、层数的联合编码域信息。
  29. 根据权利要求28所述的装置,其中,
    所述端口是干扰终端使用的DMRS端口、所述扰码ID是干扰信号使用的扰码ID、所述层数是干扰信号数据的层数。
  30. 根据权利要求29所述的装置,其中,目标信号数据的层数为1;所述干扰信号数据的层数为1。
  31. 根据权利要求27所述的装置,其中,所述干扰信号使用的预编码信息为:干扰信号使用的预编码矩阵指示PMI,或者干扰信号使用的PMI的存储序号;所述干扰信号使用的PMI是非负整数;所述干扰信号使用的PMI的存储序号是非负整数。
  32. 根据权利要求31所述的装置,其中,所述指示信息包括干扰信号 使用的PMI的存储序号;
    相应的,所述获取模块,还配置为获取目标信号使用的PMI、目标信号使用的秩、干扰信号使用的PMI、干扰信号使用的秩,以及干扰信号使用的第一信息对照表;
    基于所述目标信号使用的PMI、目标信号使用的秩、干扰信号使用的PMI、干扰信号使用的秩,查找所述第一信息对照表,获得干扰信号使用的PMI的存储序号。
  33. 根据权利要求26所述的装置,其中,所述获取模块,还配置为当所述数据传输方式为MUST时,按照预定准则,确定所述目标终端所使用的DMRS端口序号为第一端口号、干扰终端所使用的DMRS端口序号为第二端口号,以基于所述第一端口号及所述第二端口号进行数据发送;
    其中,所述目标终端所使用的DMRS端口序号与所述干扰终端所使用的DMRS端口序号一一对应。
  34. 根据权利要求33所述的装置,其中,所述获取模块,还配置为当目标终端及干扰终端使用的DMRS端口均为一个时,按照预定准则,确定所述目标终端使用的DMRS端口序号为7,且所述干扰终端使用的DMRS端口序号为8;
    或者,按照预定准则,确定所述目标终端使用的DMRS端口序号为7,且所述干扰终端使用的DMRS端口序号为9;
    或者,按照预定准则,确定所述目标终端使用的DMRS端口序号为7,且所述干扰终端使用的DMRS端口序号为10;
    或者,按照预定准则,确定所述目标终端使用的DMRS端口序号为8,且所述干扰终端使用的DMRS端口序号为7;
    或者,按照预定准则,确定所述目标终端使用的DMRS端口序号为8,且所述干扰终端使用的DMRS端口序号为9;
    或者,按照预定准则,确定所述目标终端使用的DMRS端口序号为8,且所述干扰终端使用的DMRS端口序号为10;
    当目标终端及干扰终端使用的DMRS端口均为两个时,按照预定准则,确定所述目标终端使用的DMRS端口序号为7和8,且所述干扰终端使用的DMRS端口序号为7和8;
    或者,按照预定准则,确定所述目标终端使用的DMRS端口序号为7和8,且所述干扰终端使用的DMRS端口序号为9和10;
    或者,按照预定准则,确定所述目标终端使用的DMRS端口序号为7和9,且所述干扰终端使用的DMRS端口序号为8和10;
    或者,按照预定准则,确定所述目标终端使用的DMRS端口序号为8和10,且所述干扰终端使用的DMRS端口序号为7和9;
    当目标终端使用的DMRS端口为两个,且干扰终端使用的DMRS端口为一个时,按照预定准则,确定所述目标终端使用的DMRS端口序号为7和8,且所述干扰终端使用的DMRS端口序号为7;
    或者,按照预定准则,确定所述目标终端使用的DMRS端口序号为7和8,且所述干扰终端使用的DMRS端口序号为8;
    或者,按照预定准则,确定所述目标终端使用的DMRS端口序号为7和8,且所述干扰终端使用的DMRS端口序号为9;
    或者,按照预定准则,确定所述目标终端使用的DMRS端口序号为7和8,且所述干扰终端使用的DMRS端口序号为10;
    或者,按照预定准则,确定所述目标终端使用的DMRS端口序号为7和9,且所述干扰终端使用的DMRS端口序号为8;
    或者,按照预定准则,确定所述目标终端使用的DMRS端口序号为7和9,且所述干扰终端使用的DMRS端口序号为10;
    或者,按照预定准则,确定所述目标终端使用的DMRS端口序号为8 和10,且所述干扰终端使用的DMRS端口序号为7;
    或者,按照预定准则,确定所述目标终端使用的DMRS端口序号为8和10,且所述干扰终端使用的DMRS端口序号为9;
    或者,按照预定准则,确定所述目标终端使用的DMRS端口序号为9和10,且所述干扰终端使用的DMRS端口序号为7;
    或者,按照预定准则,确定所述目标终端使用的DMRS端口序号为9和10,且所述干扰终端使用的DMRS端口序号为8;
    或者,按照预定准则,确定所述目标终端使用的DMRS端口序号为9和10,且所述干扰终端使用的DMRS端口序号为9;
    或者,按照预定准则,确定所述目标终端使用的DMRS端口序号为9和10,且所述干扰终端使用的DMRS端口序号为10。
  35. 一种信息传输装置,所述装置位于目标终端,所述装置包括:接收模块及处理模块;其中,
    所述接收模块,配置为接收基站发送的指示信息;
    所述处理模块,配置为在进行多用户叠加的数据接收时基于所述指示信息进行干扰消除。
  36. 根据权利要求35所述装置,其中,所述指示信息包括干扰信号使用的预编码矩阵指示PMI的存储序号;
    相应的,所述处理模块,还配置为获取目标信号使用的PMI、目标信号使用的秩、目标信号使用的秩,以及目标信号使用的第一信息对照表;
    基于所述干扰信号使用的PMI的存储序号、目标信号使用的秩、目标信号使用的PMI、目标信号使用的秩,查找所述第一信息对照表,获得干扰信号使用的PMI。
  37. 根据权利要求35所述装置,其中,所述指示信息包括:数据传输方式及目标终端使用的DMRS端口序号;其中,所述数据传输方式为MUST 方式;
    相应的,所述处理模块,还配置为获取所述指示信息中目标终端使用的DMRS端口序号,并依据所述目标终端使用的DMRS端口序号获得干扰终端使用的DMRS端口序号。
  38. 一种计算机存储介质,所述计算机存储介质中存储有计算机可执行指令,该计算机可执行指令用于执行权利要求1至19任一项所述的信息传输方法。
  39. 一种计算机存储介质,所述计算机存储介质中存储有计算机可执行指令,该计算机可执行指令用于执行权利要求20至25任一项所述的信息传输方法。
  40. 一种信息传输装置,其特征在于,包括:处理器和用于存储能够在处理器上运行的计算机程序的存储器;其中,
    所述处理器用于运行所述计算机程序时,执行权利要求1至19任一项所述的信息传输方法。
  41. 一种信息传输装置,其特征在于,包括:处理器和用于存储能够在处理器上运行的计算机程序的存储器;其中,
    所述处理器用于运行所述计算机程序时,执行权利要求20至25任一项所述的信息传输方法。
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111740813A (zh) * 2018-06-22 2020-10-02 Oppo广东移动通信有限公司 确定解调参考信号指示信息大小的方法、设备及存储介质

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104247282A (zh) * 2012-03-05 2014-12-24 瑞典爱立信有限公司 移动终端处使用信令传输的信息的小区间干扰消除
US20150208428A1 (en) * 2014-01-17 2015-07-23 Lg Electronics Inc. Method and apparatus for interference cancellation
CN105491556A (zh) * 2014-10-02 2016-04-13 宏碁股份有限公司 处理参数组态的装置
CN106452537A (zh) * 2015-08-06 2017-02-22 上海贝尔股份有限公司 用于在多用户叠加传输中增强反馈的方法和设备

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104247282A (zh) * 2012-03-05 2014-12-24 瑞典爱立信有限公司 移动终端处使用信令传输的信息的小区间干扰消除
US20150208428A1 (en) * 2014-01-17 2015-07-23 Lg Electronics Inc. Method and apparatus for interference cancellation
CN105491556A (zh) * 2014-10-02 2016-04-13 宏碁股份有限公司 处理参数组态的装置
CN106452537A (zh) * 2015-08-06 2017-02-22 上海贝尔股份有限公司 用于在多用户叠加传输中增强反馈的方法和设备

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
SEQUANS COMMUNICATIONS: "On Signaling Alternatives for MUST", 3GPPTSG RAN WG1 MEETING #82, RL-154023, 28 August 2015 (2015-08-28), XP051039388 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111740813A (zh) * 2018-06-22 2020-10-02 Oppo广东移动通信有限公司 确定解调参考信号指示信息大小的方法、设备及存储介质
CN111740813B (zh) * 2018-06-22 2023-06-27 Oppo广东移动通信有限公司 确定解调参考信号指示信息大小的方法、设备及存储介质

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