WO2017049646A1 - Procédé et appareil de mappage de ressource - Google Patents

Procédé et appareil de mappage de ressource Download PDF

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Publication number
WO2017049646A1
WO2017049646A1 PCT/CN2015/090847 CN2015090847W WO2017049646A1 WO 2017049646 A1 WO2017049646 A1 WO 2017049646A1 CN 2015090847 W CN2015090847 W CN 2015090847W WO 2017049646 A1 WO2017049646 A1 WO 2017049646A1
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Prior art keywords
subcarriers
physical resource
resource block
mod
index
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PCT/CN2015/090847
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English (en)
Chinese (zh)
Inventor
刘鹍鹏
刘建琴
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华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to CN201580071357.1A priority Critical patent/CN107113272B/zh
Priority to PCT/CN2015/090847 priority patent/WO2017049646A1/fr
Publication of WO2017049646A1 publication Critical patent/WO2017049646A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/02—Channels characterised by the type of signal

Definitions

  • the present invention relates to the field of communications technologies, and in particular, to a resource mapping method and apparatus.
  • a transmitting end such as a base station
  • a receiving end such as a user equipment
  • it may send a reference signal to a receiving end (such as a user equipment).
  • the receiving end obtains the channel estimation value required for user data demodulation according to the received reference signal, and further demodulates the corresponding user data according to the obtained channel estimation value.
  • the transmitting end needs to map the reference signal to the time-frequency resource.
  • the transmitting end When the transmitting end performs resource mapping, it is required to determine the port number of the transmission reference signal, the subcarrier carrying the reference signal, and the orthogonal mask OCC used by each pilot port, and modulate the reference signal according to the above OCC to map to the reference signal.
  • the resource is transmitted on the resource where the subcarrier is located.
  • each sub-carrier can be code-multiplexed by up to four. Reference signal port. If only one CDM group is used, each subcarrier is code-multiplexed with up to four reference signal ports, and the OCC length is four.
  • CDM code division multiplexing
  • the embodiment of the present invention provides a resource mapping method and device, which can implement mapping of OCC and time-frequency resources of length 4 in a scenario where each sub-carrier is code-multiplexed with four reference signal ports.
  • a first aspect of the embodiments of the present invention provides a resource mapping method, which may include:
  • each subcarrier used to carry the reference signal in a pair of physical resource blocks where three subcarriers in the pair of physical resource blocks are used to carry reference signals, and each of the subcarriers is code-multiplexed into four more.
  • Reference signal ports of different orthogonal mask OCCs, the reference signal ports of each of the subcarriers code division multiplexing are the same;
  • the base station maps a target sequence of reference signals carried by each of the subcarriers to a resource corresponding to each of the subcarriers for transmission.
  • the base station determines, according to a port number of the reference signal port and a subcarrier where each of the reference signals is located, an OCC used on each subcarrier, including :
  • W is a 4-dimensional orthogonal matrix
  • A W(p,1)
  • B W(p,2)
  • C W(p,3)
  • D W(p,4);
  • the W(p, m) represents a value corresponding to the pth row and the mth column of the orthogonal matrix W, the p corresponding to the port number of the reference signal, and the m is 1 to 4;
  • the W1 [A, B, C, D]
  • the W2 [B, A, D, C]
  • the W3 [C, D, A, B], or, [C, D, B , A]
  • the W4 [D, C, B, A], or, [D, C, A, B].
  • the base station determines, according to a port number of the reference signal port and a subcarrier where each of the reference signals is located,
  • the OCC used on the carrier includes:
  • the predetermined rule is to ensure that the number of A, B, C, and D appearing in the OFDM symbol of the orthogonal frequency division multiplexing code in which the reference signals are located in the four consecutive physical resource block pairs is the same.
  • the OCC used on each subcarrier includes:
  • the OCC used on the subcarriers n1, n3, and n8 is W3;
  • the OCC used on the subcarriers n5, n10, and n12 is W4;
  • the OCC used on the subcarriers n4, n6, and n11 is W1;
  • the OCC used on subcarriers n2, n7, and n9 is W2;
  • y is 0 or 1 or 2 or 3;
  • the index of the physical resource block is an index of all physical resource block pairs included in the maximum system bandwidth sorted according to low frequency to high frequency.
  • the OCC used on each subcarrier includes:
  • the OCC used on subcarriers n1, n5, and n9 is W3;
  • the OCC used on subcarriers n2, n6, and n10 is W1;
  • the OCC used on subcarriers n3, n7, and n11 is W2;
  • the OCC used on the subcarriers n4, n8, and n12 is W4;
  • y is 0 or 1 or 2 or 3;
  • the index of the physical resource block is an index of all physical resource block pairs included in the maximum system bandwidth sorted according to low frequency to high frequency.
  • the OCC adopted on each subcarrier includes:
  • the OCC used on the subcarriers n1, n3, and n5 is W3;
  • the OCC used on subcarriers n2, n4, and n6 is W2;
  • the OCC used on subcarriers n7, n9, and n11 is W1;
  • the OCC used on the subcarriers n8, n10, and n12 is W4;
  • y is 0 or 1 or 2 or 3;
  • the index of the physical resource block is an index of all physical resource block pairs included in the maximum system bandwidth sorted according to low frequency to high frequency.
  • the OCC used on each subcarrier includes:
  • the OCC used on the subcarriers n1, n5, and n9 is W1;
  • the OCC used on subcarriers n2, n6, and n10 is W2;
  • the OCC used on subcarriers n3, n7, and n11 is W3;
  • the OCC used on the subcarriers n4, n8, and n12 is W4;
  • y is 0 or 1 or 2 or 3;
  • the index of the physical resource block is an index of all physical resource block pairs included in the maximum system bandwidth sorted according to low frequency to high frequency.
  • the OCC used on each subcarrier includes:
  • the OCC used on subcarriers n1, n5, and n9 is W3;
  • the OCC used on subcarriers n2, n6, and n10 is W2;
  • the OCC used on subcarriers n3, n7, and n11 is W1;
  • the OCC used on the subcarriers n4, n8, and n12 is W4;
  • y is 0 or 1 or 2 or 3;
  • the index of the physical resource block is an index of all physical resource block pairs included in the maximum system bandwidth sorted according to low frequency to high frequency.
  • the subcarriers included in all physical resource blocks included in the maximum system bandwidth are The OCC used for every two adjacent subcarriers does not include the W1 and the W3 adjacent, the W2 and the W4 are adjacent, the W1 and the W1 are adjacent, and the W2 and the W2 is adjacent, the W3 is adjacent to the W3, and the state in which the W4 and the W4 are adjacent.
  • the reference signals used by the respective reference signals on the respective subcarriers and the reference signals of the same port numbers whose transmission modes are TM8, TM9, and TM10 are the same as the OCCs used on the corresponding subcarriers;
  • the reference signals of port numbers 7 and 8 adopt OCC and transmission modes of TM8, TM9, and TM10 on each subcarrier.
  • the reference signals of the same port number are the same as the OCCs used on the corresponding subcarriers, and the reference signals of port number 11 are used on the OCCs of the respective subcarriers and the ports of the adjacent subcarriers are transmitted in the mode of TM8, TM9 and TM10.
  • the reference signal of number 12 uses the same OCC, and the reference signal of port number 13 is adopted in the OCC adopted on each subcarrier and the reference signal of port number 14 of the transmission mode of TM8, TM9 and TM10 on the adjacent subcarriers.
  • the OCC is the same.
  • the reference signal is a demodulation reference signal DMRS
  • the subcarriers for carrying the reference signal in each of the physical resource blocks are subcarriers 1, 6, and 11;
  • a second aspect of the embodiments of the present invention provides a resource mapping method, which may include:
  • the user equipment UE determines a location of each subcarrier used to carry the reference signal in a physical resource block pair, where three subcarriers in the physical resource block pair are used to carry a reference signal, and each of the subcarriers is code-multiplexed to at most 4 Reference signal ports using different orthogonal mask OCCs, and the reference signal ports of each of the subcarriers code division multiplexing are the same;
  • the UE detects, according to each of the OCCs, a modulated reference signal sent by a base station received on each of the subcarriers.
  • the UE determines, according to a port number of the reference signal port and a subcarrier where each of the reference signals is located, an OCC used on each subcarrier, including :
  • the OCC used by each of the subcarriers is W1, or W2, or W3 or W4, according to a port number of the reference signal port and a subcarrier where each of the reference signals is located;
  • W is a 4-dimensional orthogonal matrix
  • A W(p,1)
  • B W(p,2)
  • C W(p, 3)
  • D W (p, 4);
  • the W(p, m) represents a value corresponding to the pth row and the mth column of the orthogonal matrix W, the p corresponding to the port number of the reference signal, and the m is 1 to 4;
  • the W1 [A, B, C, D]
  • the W2 [B, A, D, C]
  • the W3 [C, D, A, B], or, [C, D, B , A]
  • the W4 [D, C, B, A], or, [D, C, A, B].
  • the UE determines, according to a port number of the reference signal port and a subcarrier where each of the reference signals is located,
  • the OCC used on the carrier includes:
  • the predetermined rule is to ensure that the number of A, B, C, and D appearing in the OFDM symbol of the orthogonal frequency division multiplexing code in which the reference signals are located in the four consecutive physical resource block pairs is the same.
  • the OCC used on each subcarrier includes:
  • the OCC used on the subcarriers n1, n3, and n8 is W3;
  • the OCC used on the subcarriers n5, n10, and n12 is W4;
  • the OCC used on the subcarriers n4, n6, and n11 is W1;
  • the OCC used on subcarriers n2, n7, and n9 is W2;
  • y is 0 or 1 or 2 or 3;
  • the index of the physical resource block is an index of all physical resource block pairs included in the maximum system bandwidth sorted according to low frequency to high frequency.
  • the OCC used on each subcarrier includes:
  • the OCC used on subcarriers n1, n5, and n9 is W3;
  • the OCC used on subcarriers n2, n6, and n10 is W1;
  • the OCC used on subcarriers n3, n7, and n11 is W2;
  • the OCC used on the subcarriers n4, n8, and n12 is W4;
  • y is 0 or 1 or 2 or 3;
  • the index of the physical resource block is an index of all physical resource block pairs included in the maximum system bandwidth sorted according to low frequency to high frequency.
  • the OCC used on each subcarrier includes:
  • the OCC used on the subcarriers n1, n3, and n5 is W3;
  • the OCC used on subcarriers n2, n4, and n6 is W2;
  • the OCC used on subcarriers n7, n9, and n11 is W1;
  • the OCC used on the subcarriers n8, n10, and n12 is W4;
  • y is 0 or 1 or 2 or 3;
  • the index of the physical resource block is an index of all physical resource block pairs included in the maximum system bandwidth sorted according to low frequency to high frequency.
  • the OCC used on each subcarrier includes:
  • the OCC used on the subcarriers n1, n5, and n9 is W1;
  • the OCC used on subcarriers n2, n6, and n10 is W2;
  • the OCC used on subcarriers n3, n7, and n11 is W3;
  • the OCC used on the subcarriers n4, n8, and n12 is W4;
  • y is 0 or 1 or 2 or 3;
  • the index of the physical resource block is an index of all physical resource block pairs included in the maximum system bandwidth sorted according to low frequency to high frequency.
  • the OCC used on each subcarrier includes:
  • the OCC used on subcarriers n1, n5, and n9 is W3;
  • the OCC used on subcarriers n2, n6, and n10 is W2;
  • the OCC used on subcarriers n3, n7, and n11 is W1;
  • the OCC used on the subcarriers n4, n8, and n12 is W4;
  • y is 0 or 1 or 2 or 3;
  • the index of the physical resource block is an index of all physical resource block pairs included in the maximum system bandwidth sorted according to low frequency to high frequency.
  • the subcarriers included in all physical resource blocks included in the maximum system bandwidth are The OCC used for every two adjacent subcarriers does not include the W1 and the W3 adjacent, the W2 and the W4 are adjacent, the W1 and the W1 are adjacent, and the W2 and the W2 is adjacent, the W3 is adjacent to the W3, and the state in which the W4 and the W4 are adjacent.
  • the reference signals used by the respective reference signals on the respective subcarriers and the reference signals of the same port numbers whose transmission modes are TM8, TM9, and TM10 are the same as the OCCs used on the corresponding subcarriers;
  • the reference signals of port numbers 7 and 8 adopt OCC and transmission modes of TM8, TM9, and TM10 on each subcarrier.
  • the reference signals of the same port number are the same as the OCCs used on the corresponding subcarriers, and the reference signals of port number 11 are used on the OCCs of the respective subcarriers and the ports of the adjacent subcarriers are transmitted in the mode of TM8, TM9 and TM10.
  • the reference signal of number 12 uses the same OCC, and the reference signal of port number 13 is adopted in the OCC adopted on each subcarrier and the reference signal of port number 14 of the transmission mode of TM8, TM9 and TM10 on the adjacent subcarriers.
  • the OCC is the same.
  • the reference signal is a demodulation reference signal DMRS
  • the subcarriers for carrying the reference signal in each of the physical resource blocks are subcarriers 1, 6, and 11;
  • a third aspect of the embodiments of the present invention provides a resource mapping apparatus, which may include:
  • a determining module configured to determine a location of each subcarrier used to carry the reference signal in a physical resource block pair, where three subcarriers in the physical resource block pair are used to carry a reference signal, and each of the subcarriers is code division multiplexed Up to four reference signal ports using different orthogonal mask OCCs, and the reference signal ports of each of the subcarriers code division multiplexing are the same;
  • the determining module is further configured to determine an OCC used on each subcarrier according to a port number of the reference signal port and a subcarrier where each of the reference signals is located, where the length of the OCC is 4;
  • a modulation module configured to modulate a sequence of reference signals carried on each of the subcarriers according to each of the OCCs to obtain a target sequence of reference signals carried on each of the subcarriers
  • a sending module configured to map a target sequence of the reference signals carried by each of the subcarriers to a resource corresponding to each of the subcarriers for transmission.
  • the determining module is specifically configured to:
  • an OCC used by each of the subcarriers is W1, or W2, or W3 or W4;
  • W is a 4-dimensional orthogonal matrix
  • A W(p,1)
  • B W(p,2)
  • C W(p,3)
  • D W(p,4);
  • the W(p, m) represents a value corresponding to the pth row and the mth column of the orthogonal matrix W, the p corresponding to the port number of the reference signal, and the m is 1 to 4;
  • the W1 [A, B, C, D]
  • the W2 [B, A, D, C]
  • the W3 [C, D, A, B], or, [C, D, B , A]
  • the W4 [D, C, B, A], or, [D, C, A, B].
  • the determination module is specifically used to:
  • the predetermined rule is to ensure that the number of A, B, C, and D appearing in the OFDM symbol of the orthogonal frequency division multiplexing code in which the reference signals are located in the four consecutive physical resource block pairs is the same.
  • the OCC used on each subcarrier includes:
  • the OCC used on the subcarriers n1, n3, and n8 is W3;
  • the OCC used on the subcarriers n5, n10, and n12 is W4;
  • the OCC used on the subcarriers n4, n6, and n11 is W1;
  • the OCC used on subcarriers n2, n7, and n9 is W2;
  • y is 0 or 1 or 2 or 3;
  • the index of the physical resource block is an index of all physical resource block pairs included in the maximum system bandwidth sorted according to low frequency to high frequency.
  • the OCC used on each subcarrier includes:
  • the OCC used on subcarriers n1, n5, and n9 is W3;
  • the OCC used on subcarriers n2, n6, and n10 is W1;
  • the OCC used on subcarriers n3, n7, and n11 is W2;
  • the OCC used on the subcarriers n4, n8, and n12 is W4;
  • y is 0 or 1 or 2 or 3;
  • the index of the physical resource block is an index of all physical resource block pairs included in the maximum system bandwidth sorted according to low frequency to high frequency.
  • the OCC adopted on each subcarrier includes:
  • the OCC used on the subcarriers n1, n3, and n5 is W3;
  • the OCC used on subcarriers n2, n4, and n6 is W2;
  • the OCC used on subcarriers n7, n9, and n11 is W1;
  • the OCC used on the subcarriers n8, n10, and n12 is W4;
  • y is 0 or 1 or 2 or 3;
  • the index of the physical resource block is an index of all physical resource block pairs included in the maximum system bandwidth sorted according to low frequency to high frequency.
  • the OCC adopted on each subcarrier includes:
  • the OCC used on the subcarriers n1, n5, and n9 is W1;
  • the OCC used on subcarriers n2, n6, and n10 is W2;
  • the OCC used on subcarriers n3, n7, and n11 is W3;
  • the OCC used on the subcarriers n4, n8, and n12 is W4;
  • y is 0 or 1 or 2 or 3;
  • the index of the physical resource block is an index of all physical resource block pairs included in the maximum system bandwidth sorted according to low frequency to high frequency.
  • the OCC used on each subcarrier includes:
  • the OCC used on subcarriers n1, n5, and n9 is W3;
  • the OCC used on subcarriers n2, n6, and n10 is W2;
  • the OCC used on subcarriers n3, n7, and n11 is W1;
  • the OCC used on the subcarriers n4, n8, and n12 is W4;
  • y is 0 or 1 or 2 or 3;
  • the index of the physical resource block is an index of all physical resource block pairs included in the maximum system bandwidth sorted according to low frequency to high frequency.
  • the subcarriers included in all physical resource blocks included in the maximum system bandwidth are included
  • the OCC used for every two adjacent subcarriers does not include the W1 and the W3 adjacent, the W2 and the W4 are adjacent, the W1 and the W1 are adjacent, and the W2 and the W2 is adjacent, the W3 is adjacent to the W3, and the state in which the W4 and the W4 are adjacent.
  • the reference signals used by the respective reference signals on the respective subcarriers and the reference signals of the same port numbers whose transmission modes are TM8, TM9, and TM10 are the same as the OCCs used on the corresponding subcarriers;
  • the reference signals of port numbers 7 and 8 adopt OCC and transmission modes of TM8, TM9, and TM10 on each subcarrier.
  • the reference signals of the same port number are the same as the OCCs used on the corresponding subcarriers, and the reference signals of port number 11 are used on the OCCs of the respective subcarriers and the ports of the adjacent subcarriers are transmitted in the mode of TM8, TM9 and TM10.
  • the reference signal of number 12 uses the same OCC, and the reference signal of port number 13 is adopted in the OCC adopted on each subcarrier and the reference signal of port number 14 of the transmission mode of TM8, TM9 and TM10 on the adjacent subcarriers.
  • the OCC is the same.
  • the reference signal is a demodulation reference signal DMRS
  • the subcarriers for carrying the reference signal in each of the physical resource blocks are subcarriers 1, 6, and 11;
  • a fourth aspect of the embodiments of the present invention provides a resource mapping apparatus, which may include:
  • a determining module configured to determine a location of each subcarrier used to carry the reference signal in a physical resource block pair, where three subcarriers in the physical resource block pair are used to carry a reference signal, and each of the subcarriers is code division multiplexed Up to four reference signal ports using different orthogonal mask OCCs, and the reference signal ports of each of the subcarriers code division multiplexing are the same;
  • the determining module is further configured to determine an OCC used on each subcarrier according to a port number of the reference signal port and a subcarrier where each of the reference signals is located, where the length of the OCC is 4;
  • a receiving module configured to detect, according to each of the OCCs, the modulated reference signal sent by the base station received on each of the subcarriers.
  • the determining module is specifically configured to:
  • an OCC used by each of the subcarriers is W1, or W2, or W3 or W4;
  • the W(p, m) represents a value corresponding to the pth row and the mth column of the orthogonal matrix W, the p corresponding to the port number of the reference signal, and the m is 1 to 4;
  • W1 [A, B, C, D]
  • W2 [B, A, D, C]
  • W3 [C, D, A, B] or, [C, D , B, A]
  • W4 [D, C, B, A], or, [D, C, A, B].
  • the determining module is specifically configured to:
  • the predetermined rule is to ensure that the number of A, B, C, and D appearing in the OFDM symbol of the orthogonal frequency division multiplexing code in which the reference signals are located in the four consecutive physical resource block pairs is the same.
  • the OCC used on each subcarrier includes:
  • the OCC used on the subcarriers n1, n3, and n8 is W3;
  • the OCC used on the subcarriers n5, n10, and n12 is W4;
  • the OCC used on the subcarriers n4, n6, and n11 is W1;
  • the OCC used on subcarriers n2, n7, and n9 is W2;
  • the index of the subcarrier in which the reference signal from the low frequency to the high frequency is located within the resource block pair;
  • y is 0 or 1 or 2 or 3;
  • the index of the physical resource block is an index of all physical resource block pairs included in the maximum system bandwidth sorted according to low frequency to high frequency.
  • the OCC adopted on each subcarrier includes:
  • the OCC used on subcarriers n1, n5, and n9 is W3;
  • the OCC used on subcarriers n2, n6, and n10 is W1;
  • the OCC used on subcarriers n3, n7, and n11 is W2;
  • the OCC used on the subcarriers n4, n8, and n12 is W4;
  • y is 0 or 1 or 2 or 3;
  • the index of the physical resource block is an index of all physical resource block pairs included in the maximum system bandwidth sorted according to low frequency to high frequency.
  • the OCC adopted on each subcarrier includes:
  • the OCC used on the subcarriers n1, n3, and n5 is W3;
  • the OCC used on subcarriers n2, n4, and n6 is W2;
  • the OCC used on subcarriers n7, n9, and n11 is W1;
  • the OCC used on the subcarriers n8, n10, and n12 is W4;
  • y is 0 or 1 or 2 or 3;
  • the index of the physical resource block is an index of all physical resource block pairs included in the maximum system bandwidth sorted according to low frequency to high frequency.
  • the OCC adopted on each subcarrier includes:
  • the OCC used on the subcarriers n1, n5, and n9 is W1;
  • the OCC used on subcarriers n2, n6, and n10 is W2;
  • the OCC used on subcarriers n3, n7, and n11 is W3;
  • the OCC used on the subcarriers n4, n8, and n12 is W4;
  • y is 0 or 1 or 2 or 3;
  • the index of the physical resource block is an index of all physical resource block pairs included in the maximum system bandwidth sorted according to low frequency to high frequency.
  • the OCC adopted on each subcarrier includes:
  • the OCC used on subcarriers n1, n5, and n9 is W3;
  • the OCC used on subcarriers n2, n6, and n10 is W2;
  • the OCC used on subcarriers n3, n7, and n11 is W1;
  • the OCC used on the subcarriers n4, n8, and n12 is W4;
  • y is 0 or 1 or 2 or 3;
  • the index of the physical resource block is an index of all physical resource block pairs included in the maximum system bandwidth sorted according to low frequency to high frequency.
  • the subcarriers included in all physical resource blocks included in the maximum system bandwidth are included
  • the OCC used for every two adjacent subcarriers does not include the W1 and the W3 adjacent, the W2 and the W4 are adjacent, the W1 and the W1 are adjacent, and the W2 and the W2 is adjacent, the W3 is adjacent to the W3, and the state in which the W4 and the W4 are adjacent.
  • the reference signals used by the respective reference signals on the respective subcarriers and the reference signals of the same port numbers whose transmission modes are TM8, TM9, and TM10 are the same as the OCCs used on the corresponding subcarriers;
  • the reference signals of port numbers 7 and 8 adopt OCC and transmission modes of TM8, TM9, and TM10 on each subcarrier.
  • the reference signals of the same port number are the same as the OCC used on the corresponding subcarriers, and the reference signal of port number 11 is transmitted on the OCC adopted on each subcarrier and its adjacent subcarriers.
  • the reference signal with port number 12 of mode TM8, TM9 and TM10 adopts the same OCC
  • the reference signal of port number 13 adopts OCC on each subcarrier and its adjacent subcarriers transmit mode is TM8, TM9 and TM10.
  • the reference signal with port number 14 is the same as the OCC.
  • the reference signal is a demodulation reference signal DMRS
  • the subcarriers for carrying the reference signal in each of the physical resource blocks are subcarriers 1, 6, and 11;
  • a fifth aspect of the embodiments of the present invention provides a base station, which may include: a memory, a processor, and a transmitter, where the memory is connected to the transmitter, and the processor is respectively connected to the memory and the transmitter ;
  • the program stores a set of program codes
  • the transmitter and the processor are configured to invoke program code stored in the memory, and perform the following operations:
  • the processor is configured to determine a location of each subcarrier used to carry a reference signal in a physical resource block pair, where three subcarriers in the physical resource block pair are used to carry a reference signal, and each of the subcarrier code points Multipleiating up to four reference signal ports using different orthogonal mask OCCs, and the reference signal ports of each of the subcarriers code division multiplexing are the same;
  • the processor is further configured to determine an OCC used on each subcarrier according to a port number of the reference signal port and a subcarrier where each of the reference signals is located, where the length of the OCC is 4;
  • the processor is further configured to modulate a sequence of reference signals carried on each of the subcarriers according to each of the OCCs to obtain a target sequence of reference signals carried on each of the subcarriers;
  • the transmitter is configured to map a target sequence of reference signals carried by each of the subcarriers to a resource corresponding to each of the subcarriers for transmission.
  • the processor is specifically configured to:
  • an OCC used by each of the subcarriers is W1, or W2, or W3 or W4;
  • W is a 4-dimensional orthogonal matrix
  • A W(p,1)
  • B W(p,2)
  • C W(p, 3)
  • D W (p, 4);
  • the W(p, m) represents a value corresponding to the pth row and the mth column of the orthogonal matrix W, the p corresponding to the port number of the reference signal, and the m is 1 to 4;
  • the W1 [A, B, C, D]
  • the W2 [B, A, D, C]
  • the W3 [C, D, A, B], or, [C, D, B , A]
  • the W4 [D, C, B, A], or, [D, C, A, B].
  • the processor is specifically configured to:
  • the predetermined rule is to ensure that the number of A, B, C, and D appearing in the OFDM symbol of the orthogonal frequency division multiplexing code in which the reference signals are located in the four consecutive physical resource block pairs is the same.
  • the OCC used on each subcarrier includes:
  • the OCC used on the subcarriers n1, n3, and n8 is W3;
  • the OCC used on the subcarriers n5, n10, and n12 is W4;
  • the OCC used on the subcarriers n4, n6, and n11 is W1;
  • the OCC used on subcarriers n2, n7, and n9 is W2;
  • y is 0 or 1 or 2 or 3;
  • the index of the physical resource block is an index of all physical resource block pairs included in the maximum system bandwidth sorted according to low frequency to high frequency.
  • the OCC used on each subcarrier includes:
  • the OCC used on subcarriers n1, n5, and n9 is W3;
  • the OCC used on subcarriers n2, n6, and n10 is W1;
  • the OCC used on subcarriers n3, n7, and n11 is W2;
  • the OCC used on the subcarriers n4, n8, and n12 is W4;
  • y is 0 or 1 or 2 or 3;
  • the index of the physical resource block is an index of all physical resource block pairs included in the maximum system bandwidth sorted according to low frequency to high frequency.
  • the OCC adopted on each subcarrier includes:
  • the OCC used on the subcarriers n1, n3, and n5 is W3;
  • the OCC used on subcarriers n2, n4, and n6 is W2;
  • the OCC used on subcarriers n7, n9, and n11 is W1;
  • the OCC used on the subcarriers n8, n10, and n12 is W4;
  • the index of the subcarrier in which the reference signal from the low frequency to the high frequency is located within the resource block pair;
  • y is 0 or 1 or 2 or 3;
  • the index of the physical resource block is an index of all physical resource block pairs included in the maximum system bandwidth sorted according to low frequency to high frequency.
  • the OCC used on each subcarrier includes:
  • the OCC used on the subcarriers n1, n5, and n9 is W1;
  • the OCC used on subcarriers n2, n6, and n10 is W2;
  • the OCC used on subcarriers n3, n7, and n11 is W3;
  • the OCC used on the subcarriers n4, n8, and n12 is W4;
  • y is 0 or 1 or 2 or 3;
  • the index of the physical resource block is an index of all physical resource block pairs included in the maximum system bandwidth sorted according to low frequency to high frequency.
  • the OCC used on each subcarrier includes:
  • the OCC used on subcarriers n1, n5, and n9 is W3;
  • the OCC used on subcarriers n2, n6, and n10 is W2;
  • the OCC used on subcarriers n3, n7, and n11 is W1;
  • the OCC used on the subcarriers n4, n8, and n12 is W4;
  • y is 0 or 1 or 2 or 3;
  • the index of the physical resource block is an index of all physical resource block pairs included in the maximum system bandwidth sorted according to low frequency to high frequency.
  • the subcarriers included in all physical resource blocks included in the maximum system bandwidth are included
  • the OCC used for every two adjacent subcarriers does not include the W1 and the W3 adjacent, the W2 and the W4 are adjacent, the W1 and the W1 are adjacent, and the W2 and the W2 is adjacent, the W3 is adjacent to the W3, and the state in which the W4 and the W4 are adjacent.
  • the reference signals used by the respective reference signals on the respective subcarriers and the reference signals of the same port numbers whose transmission modes are TM8, TM9, and TM10 are the same as the OCCs used on the corresponding subcarriers;
  • the reference signals of port numbers 7 and 8 adopt OCC and transmission modes of TM8, TM9, and TM10 on each subcarrier.
  • the reference signals of the same port number are the same as the OCCs used on the corresponding subcarriers, and the reference signals of port number 11 are used on the OCCs of the respective subcarriers and the ports of the adjacent subcarriers are transmitted in the mode of TM8, TM9 and TM10.
  • the reference signal of number 12 uses the same OCC, and the reference signal of port number 13 is adopted in the OCC adopted on each subcarrier and the reference signal of port number 14 of the transmission mode of TM8, TM9 and TM10 on the adjacent subcarriers.
  • the OCC is the same.
  • the reference signal is a demodulation reference signal DMRS
  • the subcarriers for carrying the reference signal in each of the physical resource blocks are subcarriers 1, 6, and 11;
  • a sixth aspect of the embodiments of the present invention provides a user equipment, which may include:
  • a memory a processor and a receiver
  • the memory being coupled to the receiver
  • the processor being coupled to the memory and the receiver, respectively;
  • the program stores a set of program codes
  • the receiver and the processor are configured to invoke program code stored in the memory, and perform the following operations:
  • the processor is configured to determine a location of each subcarrier used to carry a reference signal in a physical resource block pair, where three subcarriers in the physical resource block pair are used to carry a reference signal, and each of the subcarrier code points Multipleiating up to four reference signal ports using different orthogonal mask OCCs, and the reference signal ports of each of the subcarriers code division multiplexing are the same;
  • the processor is further configured to determine an OCC used on each subcarrier according to a port number of the reference signal port and a subcarrier where each of the reference signals is located, where the length of the OCC is 4;
  • the receiver is configured to detect, according to each of the OCCs, a modulated reference signal sent by a base station received on each of the subcarriers.
  • the processor is specifically configured to:
  • an OCC used by each of the subcarriers is W1, or W2, or W3 or W4;
  • W is a 4-dimensional orthogonal matrix
  • A W(p,1)
  • B W(p,2)
  • C W(p,3)
  • D W(p,4);
  • the W(p, m) represents a value corresponding to the pth row and the mth column of the orthogonal matrix W, the p corresponding to the port number of the reference signal, and the m is 1 to 4;
  • the W1 [A, B, C, D]
  • the W2 [B, A, D, C]
  • the W3 [C, D, A, B], or, [C, D, B , A]
  • the W4 [D, C, B, A], or, [D, C, A, B].
  • the processor is specifically configured to:
  • the predetermined rule is to ensure that the number of A, B, C, and D appearing in the OFDM symbol of the orthogonal frequency division multiplexing code in which the reference signals are located in the four consecutive physical resource block pairs is the same.
  • the OCC used on each subcarrier includes:
  • the OCC used on the subcarriers n1, n3, and n8 is W3;
  • the OCC used on the subcarriers n5, n10, and n12 is W4;
  • the OCC used on the subcarriers n4, n6, and n11 is W1;
  • the OCC used on subcarriers n2, n7, and n9 is W2;
  • y is 0 or 1 or 2 or 3;
  • the index of the physical resource block is an index of all physical resource block pairs included in the maximum system bandwidth sorted according to low frequency to high frequency.
  • the OCC used on each subcarrier includes:
  • the OCC used on subcarriers n1, n5, and n9 is W3;
  • the OCC used on subcarriers n2, n6, and n10 is W1;
  • the OCC used on subcarriers n3, n7, and n11 is W2;
  • the OCC used on the subcarriers n4, n8, and n12 is W4;
  • y is 0 or 1 or 2 or 3;
  • the index of the physical resource block is an index of all physical resource block pairs included in the maximum system bandwidth sorted according to low frequency to high frequency.
  • the OCC used on each subcarrier includes:
  • the OCC used on the subcarriers n1, n3, and n5 is W3;
  • the OCC used on subcarriers n2, n4, and n6 is W2;
  • the OCC used on subcarriers n7, n9, and n11 is W1;
  • the OCC used on the subcarriers n8, n10, and n12 is W4;
  • y is 0 or 1 or 2 or 3;
  • the index of the physical resource block is an index of all physical resource block pairs included in the maximum system bandwidth sorted according to low frequency to high frequency.
  • the OCC adopted on each subcarrier includes:
  • the OCC used on the subcarriers n1, n5, and n9 is W1;
  • the OCC used on subcarriers n2, n6, and n10 is W2;
  • the OCC used on subcarriers n3, n7, and n11 is W3;
  • the OCC used on the subcarriers n4, n8, and n12 is W4;
  • y is 0 or 1 or 2 or 3;
  • the index of the physical resource block is an index of all physical resource block pairs included in the maximum system bandwidth sorted according to low frequency to high frequency.
  • the OCC used on each subcarrier includes:
  • the OCC used on subcarriers n1, n5, and n9 is W3;
  • the OCC used on subcarriers n2, n6, and n10 is W2;
  • the OCC used on subcarriers n3, n7, and n11 is W1;
  • the OCC used on the subcarriers n4, n8, and n12 is W4;
  • y is 0 or 1 or 2 or 3;
  • the index of the physical resource block is an index of all physical resource block pairs included in the maximum system bandwidth sorted according to low frequency to high frequency.
  • the subcarriers included in all physical resource blocks included in the maximum system bandwidth are The OCC used for every two adjacent subcarriers does not include the W1 and the W3 adjacent, the W2 and the W4 are adjacent, the W1 and the W1 are adjacent, and the W2 and the W2 is adjacent, the W3 is adjacent to the W3, and the state in which the W4 and the W4 are adjacent.
  • the reference signals used by the respective reference signals on the respective subcarriers and the reference signals of the same port numbers whose transmission modes are TM8, TM9, and TM10 are the same as the OCCs used on the corresponding subcarriers;
  • the reference signals of port numbers 7 and 8 adopt OCC and transmission modes of TM8, TM9, and TM10 on each subcarrier.
  • the reference signals of the same port number are the same as the OCCs used on the corresponding subcarriers, and the reference signals of port number 11 are used on the OCCs of the respective subcarriers and the ports of the adjacent subcarriers are transmitted in the mode of TM8, TM9 and TM10.
  • the reference signal of number 12 uses the same OCC, and the reference signal of port number 13 is adopted in the OCC adopted on each subcarrier and the reference signal of port number 14 of the transmission mode of TM8, TM9 and TM10 on the adjacent subcarriers.
  • the OCC is the same.
  • the reference signal is a demodulation reference signal DMRS
  • the subcarriers for carrying the reference signal in each of the physical resource blocks are subcarriers 1, 6, and 11;
  • the base station may use three subcarriers for carrying reference signals in each physical resource block pair, and the reference signal port of each subcarrier code division multiplexing is less than or equal to four, and each reference signal port is adopted. Different OCCs, the reference signal ports of each subcarrier code division multiplexing are the same In the scenario, the length of the OCC used on each subcarrier is determined according to the port number of each reference signal port and the subcarrier where each reference signal is located, and the sequence of reference signals carried on each subcarrier can be performed according to each OCC.
  • the modulation is performed by mapping the sequence of the reference signals carried on the respective subcarriers to the resources on which the subcarriers are located, and performing the transmission in a scenario in which each of the subcarriers is code-multiplexed with four reference signal ports.
  • FIG. 1 is a schematic flowchart diagram of a first embodiment of a resource mapping method according to an embodiment of the present disclosure
  • FIG. 2 is a schematic diagram of an OCC mapping result of a resource mapping method according to an embodiment of the present invention
  • FIG. 3 is a schematic diagram of another OCC mapping result of the resource mapping method provided by the embodiment of the present invention.
  • FIG. 4 is a schematic diagram of another OCC mapping result of the resource mapping method provided by the embodiment of the present invention.
  • FIG. 5 is a schematic diagram of another OCC mapping result of the resource mapping method according to the embodiment of the present invention.
  • FIG. 6 is a schematic diagram of another OCC mapping result of the resource mapping method according to the embodiment of the present invention.
  • FIG. 7 is a schematic diagram of another OCC mapping result of the resource mapping method according to the embodiment of the present invention.
  • FIG. 8 is a schematic diagram of another OCC mapping result of a resource mapping method according to an embodiment of the present invention.
  • FIG. 9 is a schematic flowchart diagram of a second embodiment of a resource mapping method according to an embodiment of the present disclosure.
  • FIG. 10 is a schematic structural diagram of a first embodiment of a resource mapping apparatus according to an embodiment of the present disclosure.
  • FIG. 11 is a schematic structural diagram of a second embodiment of a resource mapping apparatus according to an embodiment of the present disclosure.
  • FIG. 12 is a schematic structural diagram of an embodiment of a base station according to an embodiment of the present disclosure.
  • FIG. 13 is a schematic structural diagram of an embodiment of a user equipment according to an embodiment of the present invention.
  • the executor of the resource mapping method in the embodiment of the present invention may be a base station, and the resource mapping device described in the embodiment of the present invention may be a base station, and the base station is taken as an example to provide an embodiment of the present invention.
  • the resource mapping method and device are specifically described.
  • FIG. 1 is a schematic flowchart diagram of a first embodiment of a resource mapping method according to an embodiment of the present invention.
  • the method described in the embodiments of the present invention includes the following steps:
  • the base station determines a location of each subcarrier used to carry the reference signal in a pair of physical resource blocks.
  • the base station may first determine the location of each subcarrier used to carry the reference signal in the pair of physical resource blocks.
  • Each of the foregoing physical resource block pairs has three subcarriers for carrying reference signals, and the base station may first determine the location of the three subcarriers of the application bearer reference channel in its corresponding physical resource block pair, and further determine the subcarriers.
  • the resource is located to map the sequence of reference signals corresponding to each subcarrier to the corresponding resource.
  • each of the foregoing subcarriers may be code-multiplexed into up to four reference signal ports that use different orthogonal mask OCCs, and the reference signal ports of each of the subcarrier code division multiplexing are the same.
  • each subcarrier can be code-multiplexed with one, two, three, or four reference signal ports that use different OCCs, which can be determined according to actual application scenarios, and is not limited herein.
  • the base station determines an OCC used on each subcarrier according to a port number of the reference signal port and a subcarrier where each of the reference signals is located.
  • the OCC adopted on each subcarrier determined by the base station may be W1, or W2, or W3 or W4, that is, the OCC adopted on each subcarrier may be in W1, W2, W3, and W4. Any one of the above, wherein W1, W2, W3, and W4 are a codeword sequence of length 4.
  • the embodiment of the present invention can determine the OCC adopted by each subcarrier through a 4-dimensional orthogonal matrix W.
  • the above W(p, m) represents a numerical value corresponding to the p-th row and the m-th column of the orthogonal matrix W, and the p corresponds to the port number of the reference signal, and the above m is 1 to 4.
  • the orthogonal matrix W can be determined.
  • the above p corresponds to the port number of the reference signal, for example, when the subcarrier code is multiplexed into four reference signal ports using different OCCs, including a reference signal port with a reference signal port number of 7 (set to port 7) Reference signal port with reference port number 8 (set to port 8), reference signal port with reference signal port number 11 (set to port 11), and reference signal port with reference signal port number 13 (set to port 13) .
  • reference signal port with reference signal port number 11 set to port 11
  • the base station may determine the OCC used by each subcarrier according to the port number of the reference signal port and the subcarrier where each reference signal is located, where the OCC used by each of the subcarriers may be W1, or W2, or W3 or W4. That is, each subcarrier may adopt one OCC, and specifically may be any one of W1 or W2 or W3 or W4.
  • W1 [A, B, C, D]
  • W2 [B, A, D, C]
  • W3 [C, D, A, B] or [C, D, B, A]
  • W4 [D,C,B,A], or, [D, C, A, B].
  • the base station when the base station determines the OCC used on each subcarrier according to the port number of the reference signal port and the subcarrier where each reference signal is located, the base station needs to determine according to a predetermined rule.
  • the foregoing predetermined rule may specifically be A, B, C, and D that appear in the Orthogonal Frequency Division Multiplexing (OFDM) symbol where each reference signal in each of the four consecutive physical resource block pairs is located.
  • the number is the same. That is, when determining the OCC used by the subcarriers for carrying the reference signal included in each physical resource block pair, it needs to be included in the OFDM symbol in which the reference signals carried by the respective subcarriers in the four consecutive physical resource block pairs are located.
  • OFDM Orthogonal Frequency Division Multiplexing
  • the number of A, B, C, and D is the same, and the order of appearance of A, B, C, and D can be determined according to a specific scenario.
  • the following will be combined with Figure 2
  • the OCC adopted on each subcarrier described in the embodiment of the present invention is specifically described in the different implementation manners corresponding to FIG. 8.
  • the OCC used in each of the subcarriers may be that the OCC used on the subcarriers n1, n3, and n8 is W3; and the OCC used on the subcarriers n5, n10, and n12 is W4;
  • the OCC used on the subcarriers n4, n6, and n11 is W1;
  • the OCC used on the subcarriers n2, n7, and n9 is W2.
  • y be 0 or 1 or 2 or 3.
  • the index of the physical resource block is an index of all physical resource block pairs included in the maximum system bandwidth sorted according to low frequency to high frequency.
  • the three subcarriers used for carrying the reference signal in the physical resource block pair may be sequenced from low frequency to high frequency from n1 to n3, and the three subcarriers used in the physical resource block pair 1 for carrying the reference signal may be ordered from low frequency to high frequency.
  • the three subcarriers used for carrying the reference signal in the physical resource block pair 2 may be n7 to n9 from low frequency to high frequency, and the three subcarriers used in the physical resource block pair 3 for carrying the reference signal are from low frequency to high.
  • the frequency ordering can be from n10 to n12.
  • the first, second, and third in the first physical resource block pair, the second physical resource block pair, the third physical resource block pair, and the fourth physical resource block pair described in the embodiment of the present invention The fourth is only a physical resource block pair used to mark different indexes, not a physical tag of a physical resource block pair.
  • the OCC and the transmission adopted by each reference signal on each subcarrier are used among the two physical resource blocks included in each consecutive four physical resource block pairs.
  • the reference signals of the same port number in the mode of TM8, TM9 and TM10 are the same as the OCC adopted on the corresponding subcarriers.
  • the foregoing transmission modes TM8, TM9, and TM10 are transmission modes defined in LTE, and are not described herein.
  • the reference signals with port numbers 7 and 8 adopt the same OCC on each subcarrier and the same port with the transmission mode of TM8, TM9 and TM10.
  • the reference signal of the number is the same as the OCC used on the corresponding subcarriers, and the reference number of the port number 11 is adopted on each subcarrier.
  • the port number of the OCC and its adjacent subcarriers is TM8, TM9 and TM10.
  • the reference signal of 12 uses the same OCC
  • the reference signal of port number 13 is OCC adopted on each subcarrier and the OCC of the reference signal of port number 14 of the transmission mode of TM8, TM9 and TM10 on the adjacent subcarriers. the same.
  • the OCC used in each of the subcarriers may be that the OCC used on the subcarriers n1, n5, and n9 is W3; and the OCC used on the subcarriers n2, n6, and n10 is W1;
  • the OCC used on the subcarriers n3, n7, and n11 is W2;
  • the OCC used on the subcarriers n4, n8, and n12 is W4.
  • the index of the subcarrier in which the reference signal from the low frequency to the high frequency is located within the pair of physical resource blocks.
  • the above y is 0 or 1 or 2 or 3.
  • the index of the physical resource block is an index of all physical resource block pairs included in the maximum system bandwidth sorted according to low frequency to high frequency.
  • the three subcarriers used for carrying the reference signal in the physical resource block pair may be sequenced from low frequency to high frequency from n1 to n3, and the three subcarriers used in the physical resource block pair 1 for carrying the reference signal may be ordered from low frequency to high frequency.
  • the three subcarriers used for carrying the reference signal in the physical resource block pair 2 may be n7 to n9 from low frequency to high frequency, and the three subcarriers used in the physical resource block pair 3 for carrying the reference signal are from low frequency to high.
  • the frequency ordering can be from n10 to n12.
  • the OCC used on each of the subcarriers may be that the OCC used on the subcarriers n1, n3, and n5 is W3; and the OCC used on the subcarriers n2, n4, and n6 is W2;
  • the OCC used on the subcarriers n7, n9, and n11 is W1; the OCC used on the subcarriers n8, n10, and n12 is W4.
  • N10 to n12 are satisfied
  • the above y is 0 or 1 or 2 or 3.
  • the index of the physical resource block is an index of all physical resource block pairs included in the maximum system bandwidth sorted according to low frequency to high frequency.
  • the three subcarriers used for carrying the reference signal in the physical resource block pair may be sequenced from low frequency to high frequency from n1 to n3, and the three subcarriers used in the physical resource block pair 1 for carrying the reference signal may be ordered from low frequency to high frequency.
  • the three subcarriers used for carrying the reference signal in the physical resource block pair 2 may be n7 to n9 from low frequency to high frequency, and the three subcarriers used in the physical resource block pair 3 for carrying the reference signal are from low frequency to high.
  • the frequency ordering can be from n10 to n12.
  • the OCC and the transmission adopted by each reference signal on each subcarrier are used among the two physical resource blocks included in each consecutive four physical resource block pairs.
  • the reference signals of the same port number in the mode of TM8, TM9 and TM10 are the same as the OCC adopted on the corresponding subcarriers.
  • the foregoing transmission modes TM8, TM9, and TM10 are transmission modes defined in LTE, and are not described herein.
  • the reference signals with port numbers 7 and 8 adopt the same OCC on each subcarrier and the same port with the transmission mode of TM8, TM9 and TM10.
  • the reference signal of the number is the same as the OCC used on the corresponding subcarriers, and the reference number of the port number 11 is adopted on each subcarrier.
  • the port number of the OCC and its adjacent subcarriers is TM8, TM9 and TM10.
  • the reference signal of 12 uses the same OCC, port
  • the reference signal numbered 13 is the same as the OCC used for the reference signal of the port number 14 of the TM8, TM9, and TM10 transmission modes on the adjacent subcarriers.
  • the OCC used in each of the subcarriers may be that the OCC used on the subcarriers n1, n5, and n9 is W1; and the OCC used on the subcarriers n2, n6, and n10 is W2;
  • the OCC used on the subcarriers n3, n7, and n11 is W3;
  • the OCC used on the subcarriers n4, n8, and n12 is W4.
  • the above y is 0 or 1 or 2 or 3.
  • the index of the physical resource block is an index of all physical resource block pairs included in the maximum system bandwidth sorted according to low frequency to high frequency.
  • the three subcarriers used for carrying the reference signal in the physical resource block pair may be sequenced from low frequency to high frequency from n1 to n3, and the three subcarriers used in the physical resource block pair 1 for carrying the reference signal may be ordered from low frequency to high frequency.
  • the three subcarriers used for carrying the reference signal in the physical resource block pair 2 may be n7 to n9 from low frequency to high frequency, and the three subcarriers used in the physical resource block pair 3 for carrying the reference signal are from low frequency to high.
  • the frequency ordering can be from n10 to n12.
  • the OCC adopted by each two adjacent subcarriers does not include W1 and W3 phases. Adjacent, W2 and W4 are adjacent, W1 and W1 are adjacent, W2 and W2 are adjacent, W3 and W3 are adjacent, and W4 and W4 are adjacent. That is, in the scenario corresponding to FIG. 5 above, the OCC adopted for every two adjacent subcarriers will never have W1 and W3 adjacent, W2 and W4 are adjacent, W1 and W1 are adjacent, and W2 and W2 are adjacent. W3 and W3 are adjacent to each other, and W4 and W4 are adjacent to each other, thereby maintaining power balance.
  • the OCC used on each of the subcarriers may be that the OCC used on the subcarriers n1, n5, and n9 is W3; and the OCC used on the subcarriers n2, n6, and n10 is W2;
  • the OCC used on the subcarriers n3, n7, and n11 is W1;
  • the OCC used on the subcarriers n4, n8, and n12 is W4.
  • the above y is 0 or 1 or 2 or 3.
  • the index of the physical resource block is an index of all physical resource block pairs included in the maximum system bandwidth sorted according to low frequency to high frequency.
  • the three subcarriers used for carrying the reference signal in the physical resource block pair may be sequenced from low frequency to high frequency from n1 to n3, and the three subcarriers used in the physical resource block pair 1 for carrying the reference signal may be ordered from low frequency to high frequency.
  • the three subcarriers used for carrying the reference signal in the physical resource block pair 2 may be n7 to n9 from low frequency to high frequency, and the three subcarriers used in the physical resource block pair 3 for carrying the reference signal are from low frequency to high.
  • the frequency ordering can be from n10 to n12.
  • the OCC adopted by each two adjacent subcarriers does not include W1 and W3 phases. Adjacent, W2 and W4 are adjacent, W1 and W1 are adjacent, W2 and W2 are adjacent, W3 and W3 are adjacent, and W4 and W4 are adjacent. That is, in the scenario corresponding to FIG. 6 above, the OCC adopted for every two adjacent subcarriers is always adjacent to W1 and W3, W2 and W4 are adjacent, W1 and W1 are adjacent, and W2 and W2 are adjacent. W3 and W3 are adjacent to each other, and W4 and W4 are adjacent to each other, thereby maintaining power balance.
  • the reference signals described in the respective implementation manners are Demodulation Reference Signals (DMRSs).
  • the subcarriers used to carry the reference signal in each physical resource block are subcarriers 1, 6, and 11, and all subcarrier numbers used when determining the OCC used on each subcarrier are 0 to 11 from low frequency to high frequency.
  • the OCC employed on each subcarrier may also be determined according to Equation 1.
  • the OCC adopted for each subcarrier determined according to the above formula 1 is as shown in FIG.
  • Table 1 shows the OCC used by each antenna port (or reference signal port):
  • the above Is the number of physical resource blocks (PRBs) included in the maximum system bandwidth, and n PRB is the index of the PRB pair (ie, the pair of physical resource blocks) sorted from the low frequency to the high frequency according to the maximum system bandwidth, k is a child.
  • Carrier index l is an OFDM symbol index
  • r is a sequence of reference signals
  • Reference signal representing port p is a sequence in which the subcarrier number is k, the OFDM number is l, and the OCC code is modulated
  • w p (l') is an element of the OCC code.
  • the OCC employed on each subcarrier may also be determined according to Equation 2.
  • the OCC adopted for each subcarrier determined according to the above formula 2 is as shown in FIG.
  • Table 2 shows the OCC used by each antenna port (or reference signal port):
  • the above Is the number of physical resource blocks (PRBs) included in the maximum system bandwidth, and n PRB is the index of the PRB pair (ie, the pair of physical resource blocks) sorted from the low frequency to the high frequency according to the maximum system bandwidth, k is a child.
  • Carrier index l is an OFDM symbol index
  • r is a sequence of reference signals
  • the reference signal representing the port p is a sequence in which the subcarrier number is k, the OFDM number is l, and the OCC code is modulated
  • w p (l') is an element of the OCC code.
  • the base station modulates a sequence of reference signals carried on each of the subcarriers according to each of the OCCs to obtain a target sequence of reference signals carried on each of the subcarriers.
  • the base station maps a target sequence of reference signals carried by each of the subcarriers to a resource where each of the subcarriers is located.
  • the sequence of the reference signals carried on each subcarrier may be modulated according to each OCC to obtain a reference signal carried on each subcarrier.
  • the base station may map the target sequence of the reference signals carried by the modulated subcarriers to the resources where the subcarriers are located.
  • the base station may use three subcarriers for carrying reference signals in each physical resource block pair, and the reference signal port of each subcarrier code division multiplexing is less than or equal to four, and each reference signal port is adopted. Different OCCs, the reference signal ports of each subcarrier code division multiplexing are the same In the scenario, the length of the OCC used on each subcarrier is determined according to the port number of each reference signal port and the subcarrier where each reference signal is located, and the sequence of reference signals carried on each subcarrier can be performed according to each OCC.
  • the modulation is performed by mapping the sequence of the reference signals carried on the respective subcarriers to the resources on which the subcarriers are located, and performing the transmission in a scenario in which each of the subcarriers is code-multiplexed with four reference signal ports.
  • FIG. 9 is a schematic flowchart diagram of a second embodiment of a resource mapping method according to an embodiment of the present invention.
  • the method described in the embodiments of the present invention includes the following steps:
  • the user equipment UE determines a location of each subcarrier used to carry the reference signal in a physical resource block pair.
  • a user equipment may first determine a location of each subcarrier used to carry a reference signal in a physical resource block pair.
  • Each of the foregoing physical resource block pairs has three subcarriers for carrying the reference signal, and the UE may first determine the location of the three subcarriers of the application bearer reference channel in the corresponding physical resource block pair, and further determine the subcarrier.
  • the resource is located to map the sequence of reference signals corresponding to each subcarrier to the corresponding resource.
  • each of the foregoing subcarriers may be code-multiplexed into up to four reference signal ports that use different orthogonal mask OCCs, and the reference signal ports of each of the subcarrier code division multiplexing are the same.
  • the length of the above OCC is 4. That is, in a specific implementation, each subcarrier can be code-multiplexed with one, two, three, or four reference signal ports that use different OCCs, which can be determined according to actual application scenarios, and is not limited herein.
  • the UE determines an OCC used on each subcarrier according to a port number of the reference signal port and a subcarrier where each of the reference signals is located.
  • the OCC adopted on each subcarrier determined by the UE may be W1, or W2, or W3 or W4, that is, the OCC adopted on each subcarrier may be in W1, W2, W3, and W4. Any one of the above, wherein W1, W2, W3, and W4 are a codeword sequence of length 4.
  • the embodiment of the present invention can determine the OCC adopted by each subcarrier through a 4-dimensional orthogonal matrix W.
  • the above W(p, m) represents a numerical value corresponding to the p-th row and the m-th column of the orthogonal matrix W, and the p corresponds to the port number of the reference signal, and the above m is 1 to 4.
  • the above p corresponds to the port number of the reference signal, for example, when the subcarrier code is multiplexed into four reference signal ports using different OCCs, including a reference signal port with a reference signal port number of 7 (set to port 7) Reference signal port with reference port number 8 (set to port 8), reference signal port with reference signal port number 11 (set to port 11), and reference signal port with reference signal port number 13 (set to port 13) .
  • reference signal port with reference signal port number 11 set to port 11
  • the UE may determine the OCC used by each subcarrier according to the port number of the reference signal port and the subcarrier where each reference signal is located, where the OCC of each subcarrier may be W1, or W2, or W3 or W4. That is, each subcarrier may adopt one OCC, and specifically may be any one of W1 or W2 or W3 or W4.
  • W1 [A, B, C, D]
  • W2 [B, A, D, C]
  • W3 [C, D, A, B] or [C, D, B, A]
  • W4 [D,C,B,A], or, [D, C, A, B].
  • the UE when the UE determines the OCC used on each subcarrier according to the port number of the reference signal port and the subcarrier where each reference signal is located, the UE needs to determine according to a predetermined rule.
  • the foregoing predetermined rule may be specifically to ensure that the number of A, B, C, and D appearing in the OFDM symbol where each reference signal is located in the four consecutive physical resource block pairs is the same.
  • the OCC used in each of the subcarriers may be that the OCC used on the subcarriers n1, n3, and n8 is W3; and the OCC used on the subcarriers n5, n10, and n12 is W4;
  • the OCC used on the subcarriers n4, n6, and n11 is W1;
  • the OCC used on the subcarriers n2, n7, and n9 is W2.
  • y be 0 or 1 or 2 or 3.
  • the index of the physical resource block is an index of all physical resource block pairs included in the maximum system bandwidth sorted according to low frequency to high frequency.
  • the three subcarriers used for carrying the reference signal in the physical resource block pair may be sequenced from low frequency to high frequency from n1 to n3, and the three subcarriers used in the physical resource block pair 1 for carrying the reference signal may be ordered from low frequency to high frequency.
  • the three subcarriers used for carrying the reference signal in the physical resource block pair 2 may be n7 to n9 from low frequency to high frequency, and the three subcarriers used in the physical resource block pair 3 for carrying the reference signal are from low frequency to high.
  • the frequency ordering can be from n10 to n12.
  • W1 [A,B,C,D]
  • W2 [B,A,D,C]
  • W3 [C,D,A,B]
  • W4 [D,C,B,A]
  • the OCC used on subcarriers n1, n3, and n8 is W3, and subcarriers n5, n10, and n12
  • the OCC used in the above is W4, the OCC used on the subcarriers n4, n6, and n11 is W1, and the result obtained by using the OCC on the subcarriers n2, n7, and n9 as W2 is as shown in FIG. 2.
  • the first, second, and third in the first physical resource block pair, the second physical resource block pair, the third physical resource block pair, and the fourth physical resource block pair described in the embodiment of the present invention The fourth is only a physical resource block pair used to mark different indexes, not a physical tag of a physical resource block pair.
  • the OCC and the transmission adopted by each reference signal on each subcarrier are used among the two physical resource blocks included in each consecutive four physical resource block pairs.
  • the reference signals of the same port number in the mode of TM8, TM9 and TM10 are the same as the OCC adopted on the corresponding subcarriers.
  • the foregoing transmission modes TM8, TM9, and TM10 are transmission modes defined in LTE, and are not described herein.
  • the reference signals with port numbers 7 and 8 adopt the same OCC on each subcarrier and the same port with the transmission mode of TM8, TM9 and TM10.
  • the reference signal of the number is the same as the OCC used on the corresponding subcarriers, and the reference number of the port number 11 is adopted on each subcarrier.
  • the port number of the OCC and its adjacent subcarriers is TM8, TM9 and TM10.
  • the reference signal of 12 uses the same OCC
  • the reference signal of port number 13 is OCC adopted on each subcarrier and the OCC of the reference signal of port number 14 of the transmission mode of TM8, TM9 and TM10 on the adjacent subcarriers. the same.
  • the OCC used in each of the subcarriers may be that the OCC used on the subcarriers n1, n5, and n9 is W3; and the OCC used on the subcarriers n2, n6, and n10 is W1;
  • the OCC used on the subcarriers n3, n7, and n11 is W2;
  • the OCC used on the subcarriers n4, n8, and n12 is W4.
  • the above n1 to n3 are indexes index mod satisfying the physical resource block.
  • the above y is 0 or 1 or 2 or 3.
  • the index of the physical resource block is an index of all physical resource block pairs included in the maximum system bandwidth sorted according to low frequency to high frequency.
  • the three subcarriers used for carrying the reference signal in the physical resource block pair may be sequenced from low frequency to high frequency from n1 to n3, and the three subcarriers used in the physical resource block pair 1 for carrying the reference signal may be ordered from low frequency to high frequency.
  • the three subcarriers used for carrying the reference signal in the physical resource block pair 2 may be n7 to n9 from low frequency to high frequency, and the three subcarriers used in the physical resource block pair 3 for carrying the reference signal are from low frequency to high.
  • the frequency ordering can be from n10 to n12.
  • the OCC used on each of the subcarriers may be that the OCC used on the subcarriers n1, n3, and n5 is W3; and the OCC used on the subcarriers n2, n4, and n6 is W2;
  • the OCC used on the subcarriers n7, n9, and n11 is W1; the OCC used on the subcarriers n8, n10, and n12 is W4.
  • the above y is 0 or 1 or 2 or 3.
  • the index of the physical resource block is an index of all physical resource block pairs included in the maximum system bandwidth sorted according to low frequency to high frequency.
  • the three subcarriers used for carrying the reference signal in the physical resource block pair may be sequenced from low frequency to high frequency from n1 to n3, and the three subcarriers used in the physical resource block pair 1 for carrying the reference signal may be ordered from low frequency to high frequency.
  • the three subcarriers used for carrying the reference signal in the physical resource block pair 2 may be n7 to n9 from low frequency to high frequency, and the three subcarriers used in the physical resource block pair 3 for carrying the reference signal are from low frequency to high.
  • the frequency ordering can be from n10 to n12.
  • the OCC and the transmission adopted by each reference signal on each subcarrier are used among the two physical resource blocks included in each consecutive four physical resource block pairs.
  • the reference signals of the same port number in the mode of TM8, TM9 and TM10 are the same as the OCC adopted on the corresponding subcarriers.
  • the foregoing transmission modes TM8, TM9, and TM10 are transmission modes defined in LTE, and are not described herein.
  • the reference signals with port numbers 7 and 8 adopt the same OCC on each subcarrier and the same port with the transmission mode of TM8, TM9 and TM10.
  • the reference signal of the number is the same as the OCC used on the corresponding subcarriers, and the reference number of the port number 11 is adopted on each subcarrier.
  • the port number of the OCC and its adjacent subcarriers is TM8, TM9 and TM10.
  • the reference signal of 12 uses the same OCC, port
  • the reference signal numbered 13 is the same as the OCC used for the reference signal of the port number 14 of the TM8, TM9, and TM10 transmission modes on the adjacent subcarriers.
  • the OCC used in each of the subcarriers may be that the OCC used on the subcarriers n1, n5, and n9 is W1; and the OCC used on the subcarriers n2, n6, and n10 is W2;
  • the OCC used on the subcarriers n3, n7, and n11 is W3;
  • the OCC used on the subcarriers n4, n8, and n12 is W4.
  • the above y is 0 or 1 or 2 or 3.
  • the index of the physical resource block is an index of all physical resource block pairs included in the maximum system bandwidth sorted according to low frequency to high frequency.
  • the three subcarriers used for carrying the reference signal in the physical resource block pair may be sequenced from low frequency to high frequency from n1 to n3, and the three subcarriers used in the physical resource block pair 1 for carrying the reference signal may be ordered from low frequency to high frequency.
  • the three subcarriers used for carrying the reference signal in the physical resource block pair 2 may be n7 to n9 from low frequency to high frequency, and the three subcarriers used in the physical resource block pair 3 for carrying the reference signal are from low frequency to high.
  • the frequency ordering can be from n10 to n12.
  • the OCC adopted by every two adjacent subcarriers does not include W1 and W3 adjacent, W2 and W4 are adjacent, W1 and W1 are adjacent, and W2 and W2 are adjacent, W3 Adjacent to W3, the state adjacent to W4 and W4. That is, in the scenario corresponding to FIG. 5 above, the OCC adopted for every two adjacent subcarriers will never have W1 and W3 adjacent, W2 and W4 are adjacent, W1 and W1 are adjacent, and W2 and W2 are adjacent. W3 and W3 are adjacent to each other, and W4 and W4 are adjacent to each other, thereby maintaining power balance.
  • the OCC used on each of the subcarriers may be that the OCC used on the subcarriers n1, n5, and n9 is W3; and the OCC used on the subcarriers n2, n6, and n10 is W2;
  • the OCC used on the subcarriers n3, n7, and n11 is W1;
  • the OCC used on the subcarriers n4, n8, and n12 is W4.
  • the above y is 0 or 1 or 2 or 3.
  • the index of the physical resource block is an index of all physical resource block pairs included in the maximum system bandwidth sorted according to low frequency to high frequency.
  • the three subcarriers used for carrying the reference signal in the physical resource block pair may be sequenced from low frequency to high frequency from n1 to n3, and the three subcarriers used in the physical resource block pair 1 for carrying the reference signal may be ordered from low frequency to high frequency.
  • the three subcarriers used for carrying the reference signal in the physical resource block pair 2 may be n7 to n9 from low frequency to high frequency, and the three subcarriers used in the physical resource block pair 3 for carrying the reference signal are from low frequency to high.
  • the frequency ordering can be from n10 to n12.
  • the OCC used on the subcarriers n1, n5, and n9 is W3;
  • the OCC used on the subcarriers n2, n6, and n10 is W2;
  • the OCC used on the subcarriers n3, n7, and n11 is W1;
  • the result obtained by using the OCC of subcarriers n4, n8, and n12 as W4 is as shown in FIG. 6.
  • the OCC adopted by each two adjacent subcarriers does not include W1 and W3 phases. Adjacent, W2 and W4 are adjacent, W1 and W1 are adjacent, W2 and W2 are adjacent, W3 and W3 are adjacent, and W4 and W4 are adjacent. That is, in the scenario corresponding to FIG. 6 above, the OCC adopted for every two adjacent subcarriers is always adjacent to W1 and W3, W2 and W4 are adjacent, W1 and W1 are adjacent, and W2 and W2 are adjacent. W3 and W3 are adjacent to each other, and W4 and W4 are adjacent to each other, thereby maintaining power balance.
  • the reference signals described in the respective implementation manners are Demodulation Reference Signals (DMRSs).
  • the subcarriers used to carry the reference signal in each physical resource block are subcarriers 1, 6, and 11, and all subcarrier numbers used when determining the OCC used on each subcarrier are 0 to 11 from low frequency to high frequency.
  • the Orthogonal Frequency Division Multiplexing (OFDM) symbol bits of the DMRS are located at the 5th, 6th, 12th, and 13th symbols.
  • the OCC employed on each subcarrier may also be determined according to Equation 1.
  • the OCC adopted for each subcarrier determined according to the above formula 1 is as shown in FIG.
  • Table 1 shows the OCC used by each antenna port (or reference signal port):
  • the above Is the number of physical resource blocks (PRBs) included in the maximum system bandwidth, and n PRB is the index of the PRB pair (ie, the pair of physical resource blocks) sorted from the low frequency to the high frequency according to the maximum system bandwidth, k is a child.
  • Carrier index l is an OFDM symbol index
  • r is a sequence of reference signals
  • Reference signal representing port p is a sequence in which the subcarrier number is k, the OFDM number is l, and the OCC code is modulated
  • w p (l') is an element of the OCC code.
  • the OCC employed on each subcarrier may also be determined according to Equation 2.
  • the OCC adopted for each subcarrier determined according to the above formula 2 is as shown in FIG.
  • Table 2 shows the OCC used by each antenna port (or reference signal port):
  • the above Is the number of physical resource blocks (PRBs) included in the maximum system bandwidth, and n PRB is the index of the PRB pair (ie, the pair of physical resource blocks) sorted from the low frequency to the high frequency according to the maximum system bandwidth, k is a child.
  • Carrier index l is an OFDM symbol index
  • r is a sequence of reference signals
  • the reference signal representing the port p is a sequence in which the subcarrier number is k, the OFDM number is l, and the OCC code is modulated
  • w p (l') is an element of the OCC code.
  • the UE detects, according to each of the OCCs, a modulated reference signal sent by a base station received on each of the subcarriers.
  • the base station modulated reference signal sent by the base station received on each subcarrier may be detected according to each OCC, and the corresponding reference signal is obtained. data. .
  • the user equipment may use three subcarriers for carrying reference signals in each physical resource block pair, and the reference signal port of each subcarrier code division multiplexing is less than or equal to four, and each reference signal port
  • the OCC of length 4 used on each subcarrier is determined according to the port number of each reference signal port and the subcarrier where each reference signal is located.
  • the modulated reference signal received on each subcarrier is detected to obtain corresponding user data, which is implemented in each
  • a mapping of OCC and time-frequency resources of length 4 is performed in a scenario in which the subcarriers are code-multiplexed with four reference signal ports.
  • FIG. 10 is a schematic structural diagram of a first embodiment of a resource mapping apparatus according to an embodiment of the present invention.
  • the resource mapping device described in the embodiment of the present invention may be specifically a base station, which may include: a determining module 10, a modulating module 20, and a sending module 30;
  • a determining module 10 configured to determine a location of each subcarrier used to carry the reference signal in a pair of physical resource blocks, where three subcarriers in the physical resource block pair are used to carry a reference signal, and each of the subcarrier codes is divided With up to four reference signal ports using different orthogonal mask OCCs, the reference signal ports of each of the subcarrier code division multiplexing are the same.
  • the determining module 10 is further configured to determine an OCC used on each subcarrier according to a port number of the reference signal port and a subcarrier where each of the reference signals is located, where the length of the OCC is 4.
  • the modulating module 20 is configured to modulate a sequence of reference signals carried on each of the subcarriers according to each of the OCCs to obtain a target sequence of reference signals carried on each of the subcarriers.
  • the sending module 30 is configured to map a target sequence of reference signals carried by each of the subcarriers to a resource corresponding to each of the subcarriers for transmission.
  • the determining module 10 is specifically configured to:
  • an OCC used by each of the subcarriers is W1, or W2, or W3 or W4;
  • W is a 4-dimensional orthogonal matrix
  • A W(p,1)
  • B W(p,2)
  • C W(p,3)
  • D W(p,4);
  • the W(p, m) represents a value corresponding to the pth row and the mth column of the orthogonal matrix W, the p corresponding to the port number of the reference signal, and the m is 1 to 4;
  • the W1 [A, B, C, D]
  • the W2 [B, A, D, C]
  • the W3 [C, D, A, B], or, [C, D, B , A]
  • the W4 [D, C, B, A], or, [D, C, A, B].
  • the determining module 10 is specifically configured to:
  • the predetermined rule is to ensure that the number of A, B, C, and D appearing in the OFDM symbol of the orthogonal frequency division multiplexing code in which the reference signals are located in the four consecutive physical resource block pairs is the same.
  • the OCC adopted on each subcarrier includes:
  • the OCC used on the subcarriers n1, n3, and n8 is W3;
  • the OCC used on the subcarriers n5, n10, and n12 is W4;
  • the OCC used on the subcarriers n4, n6, and n11 is W1;
  • the OCC used on subcarriers n2, n7, and n9 is W2;
  • y is 0 or 1 or 2 or 3;
  • the index of the physical resource block is an index of all physical resource block pairs included in the maximum system bandwidth sorted according to low frequency to high frequency.
  • the OCC adopted on each subcarrier includes:
  • the OCC used on subcarriers n1, n5, and n9 is W3;
  • the OCC used on subcarriers n2, n6, and n10 is W1;
  • the OCC used on subcarriers n3, n7, and n11 is W2;
  • the OCC used on the subcarriers n4, n8, and n12 is W4;
  • y is 0 or 1 or 2 or 3;
  • the index of the physical resource block is an index of all physical resource block pairs included in the maximum system bandwidth sorted according to low frequency to high frequency.
  • the OCC adopted on each subcarrier includes:
  • the OCC used on the subcarriers n1, n3, and n5 is W3;
  • the OCC used on subcarriers n2, n4, and n6 is W2;
  • the OCC used on subcarriers n7, n9, and n11 is W1;
  • the OCC used on the subcarriers n8, n10, and n12 is W4;
  • y is 0 or 1 or 2 or 3;
  • the index of the physical resource block is an index of all physical resource block pairs included in the maximum system bandwidth sorted according to low frequency to high frequency.
  • the OCC adopted on each subcarrier includes:
  • the OCC used on the subcarriers n1, n5, and n9 is W1;
  • the OCC used on subcarriers n2, n6, and n10 is W2;
  • the OCC used on subcarriers n3, n7, and n11 is W3;
  • the OCC used on the subcarriers n4, n8, and n12 is W4;
  • y is 0 or 1 or 2 or 3;
  • the index of the physical resource block is an index of all physical resource block pairs included in the maximum system bandwidth sorted according to low frequency to high frequency.
  • the OCC adopted on each subcarrier includes:
  • the OCC used on subcarriers n1, n5, and n9 is W3;
  • the OCC used on subcarriers n2, n6, and n10 is W2;
  • the OCC used on subcarriers n3, n7, and n11 is W1;
  • the OCC used on the subcarriers n4, n8, and n12 is W4;
  • y is 0 or 1 or 2 or 3;
  • the index of the physical resource block is an index of all physical resource block pairs included in the maximum system bandwidth sorted according to low frequency to high frequency.
  • an OCC adopted by every two adjacent subcarriers does not include the W1 and the W3. Adjacent, the W2 and the W4 are adjacent, the W1 is adjacent to the W1, the W2 is adjacent to the W2, the W3 is adjacent to the W3, and the W4 and the W4 are adjacent. Adjacent state.
  • each reference signal adopts an OCC and a transmission mode of TM8, TM9, and TM10 on each subcarrier.
  • the reference signals of the same port number are the same as the OCC used on the corresponding subcarriers;
  • the reference signals of port numbers 7 and 8 adopt OCC and transmission modes of TM8, TM9, and TM10 on each subcarrier.
  • the reference signals of the same port number are the same as the OCCs used on the corresponding subcarriers, and the reference signals of port number 11 are used on the OCCs of the respective subcarriers and the ports of the adjacent subcarriers are transmitted in the mode of TM8, TM9 and TM10.
  • the reference signal of number 12 uses the same OCC, and the reference signal of port number 13 is adopted in the OCC adopted on each subcarrier and the reference signal of port number 14 of the transmission mode of TM8, TM9 and TM10 on the adjacent subcarriers.
  • the reference signal is a demodulation reference signal DMRS
  • the subcarriers for carrying the reference signal in each of the physical resource blocks are subcarriers 1, 6, and 11;
  • the foregoing resource mapping apparatus may perform the implementation manners described in the foregoing steps in the first embodiment of the resource mapping method provided by the foregoing embodiment of the present invention by using the respective modules. For details, refer to the steps described in the foregoing steps in the foregoing embodiments. The implementation method will not be described here.
  • FIG. 11 is a schematic structural diagram of a second embodiment of a resource mapping apparatus according to an embodiment of the present invention.
  • the resource mapping device described in the embodiment of the present invention may be specifically the UE described in the embodiment of the present invention, which may include:
  • a determining module 50 configured to determine a location of each subcarrier used to carry the reference signal in a physical resource block pair, where three subcarriers in the physical resource block pair are used to carry a reference signal, and each of the subcarrier codes is divided With up to four reference signal ports using different orthogonal mask OCCs, the reference signal ports of each of the subcarrier code division multiplexing are the same.
  • the determining module 50 is further configured to determine an OCC used on each subcarrier according to a port number of the reference signal port and a subcarrier where each of the reference signals is located, and a length of the OCC Is 4.
  • the receiving module 60 is configured to detect, according to each of the OCCs, the modulated reference signal sent by the base station received on each of the subcarriers.
  • the determining module 50 is specifically configured to:
  • an OCC used by each of the subcarriers is W1, or W2, or W3 or W4;
  • the W(p, m) represents a value corresponding to the pth row and the mth column of the orthogonal matrix W, the p corresponding to the port number of the reference signal, and the m is 1 to 4;
  • W1 [A, B, C, D]
  • W2 [B, A, D, C]
  • W3 [C, D, A, B] or, [C, D , B, A]
  • W4 [D, C, B, A], or, [D, C, A, B].
  • the determining module 50 is specifically configured to:
  • the predetermined rule is to ensure that the number of A, B, C, and D appearing in the OFDM symbol of the orthogonal frequency division multiplexing code in which the reference signals are located in the four consecutive physical resource block pairs is the same.
  • the OCC adopted on each subcarrier includes:
  • the OCC used on the subcarriers n1, n3, and n8 is W3;
  • the OCC used on the subcarriers n5, n10, and n12 is W4;
  • the OCC used on the subcarriers n4, n6, and n11 is W1;
  • the OCC used on subcarriers n2, n7, and n9 is W2;
  • y is 0 or 1 or 2 or 3;
  • the index of the physical resource block is an index of all physical resource block pairs included in the maximum system bandwidth sorted according to low frequency to high frequency.
  • the OCC adopted on each subcarrier includes:
  • the OCC used on subcarriers n1, n5, and n9 is W3;
  • the OCC used on subcarriers n2, n6, and n10 is W1;
  • the OCC used on subcarriers n3, n7, and n11 is W2;
  • the OCC used on the subcarriers n4, n8, and n12 is W4;
  • y is 0 or 1 or 2 or 3;
  • the index of the physical resource block is an index of all physical resource block pairs included in the maximum system bandwidth sorted according to low frequency to high frequency.
  • the OCC adopted on each subcarrier includes:
  • the OCC used on the subcarriers n1, n3, and n5 is W3;
  • the OCC used on subcarriers n2, n4, and n6 is W2;
  • the OCC used on subcarriers n7, n9, and n11 is W1;
  • the OCC used on the subcarriers n8, n10, and n12 is W4;
  • y is 0 or 1 or 2 or 3;
  • the index of the physical resource block is an index of all physical resource block pairs included in the maximum system bandwidth sorted according to low frequency to high frequency.
  • the OCC adopted on each subcarrier includes:
  • the OCC used on the subcarriers n1, n5, and n9 is W1;
  • the OCC used on subcarriers n2, n6, and n10 is W2;
  • the OCC used on subcarriers n3, n7, and n11 is W3;
  • the OCC used on the subcarriers n4, n8, and n12 is W4;
  • y is 0 or 1 or 2 or 3;
  • the index of the physical resource block is an index of all physical resource block pairs included in the maximum system bandwidth sorted according to low frequency to high frequency.
  • the OCC adopted on each subcarrier includes:
  • the OCC used on subcarriers n1, n5, and n9 is W3;
  • the OCC used on subcarriers n2, n6, and n10 is W2;
  • the OCC used on subcarriers n3, n7, and n11 is W1;
  • the OCC used on the subcarriers n4, n8, and n12 is W4;
  • y is 0 or 1 or 2 or 3;
  • the index of the physical resource block is an index of all physical resource block pairs included in the maximum system bandwidth sorted according to low frequency to high frequency.
  • an OCC adopted by every two adjacent subcarriers does not include the W1 and the W3. Adjacent, the W2 and the W4 are adjacent, the W1 is adjacent to the W1, the W2 is adjacent to the W2, the W3 is adjacent to the W3, and the W4 and the W4 are adjacent. Adjacent state.
  • each reference signal adopts an OCC and a transmission mode of TM8, TM9, and TM10 on each subcarrier.
  • the reference signals of the same port number are the same as the OCC used on the corresponding subcarriers;
  • the reference signals of port numbers 7 and 8 adopt OCC and transmission modes of TM8, TM9, and TM10 on each subcarrier.
  • the reference signals of the same port number are the same as the OCCs used on the corresponding subcarriers, and the reference signals of port number 11 are used on the OCCs of the respective subcarriers and the ports of the adjacent subcarriers are transmitted in the mode of TM8, TM9 and TM10.
  • the reference signal of number 12 uses the same OCC, and the reference signal of port number 13 is adopted in the OCC adopted on each subcarrier and the reference signal of port number 14 of the transmission mode of TM8, TM9 and TM10 on the adjacent subcarriers.
  • the OCC is the same.
  • the reference signal is a demodulation reference signal DMRS
  • the subcarriers for carrying the reference signal in each of the physical resource blocks are subcarriers 1, 6, and 11;
  • the resource mapping device may perform the implementations described in the foregoing steps in the second embodiment of the resource mapping method provided by the foregoing embodiment of the present invention by using the respective modules.
  • the base station may use three subcarriers for carrying reference signals in each physical resource block pair, and the reference signal port of each subcarrier code division multiplexing is less than or equal to four, and each reference signal port is adopted.
  • the OCC of length 4 used on each subcarrier is determined according to the port number of each reference signal port and the subcarrier where each reference signal is located.
  • each OCC a sequence of reference signals carried on each subcarrier is modulated, and a sequence of reference signals carried on each subcarrier is modulated onto a resource where each subcarrier is located for transmission, thereby realizing
  • the mapping of the OCC with the time-frequency resource of length 4 is performed in the scenario where the sub-carriers are code-multiplexed with the four reference signal ports.
  • the user equipment may use three subcarriers for carrying reference signals in each physical resource block pair, and the reference signal port of each subcarrier code division multiplexing is less than or equal to four, and each reference signal port
  • the OCC of length 4 used on each subcarrier is determined according to the port number of each reference signal port and the subcarrier where each reference signal is located.
  • the modulated reference signal received on each subcarrier is detected to obtain corresponding user data, and the length is 4 in a scenario where each subcarrier is code-multiplexed with four reference signal ports at most. Mapping of OCC and time-frequency resources.
  • FIG. 12 is a schematic structural diagram of an embodiment of a base station according to an embodiment of the present invention.
  • the base station described in the embodiment of the present invention includes: a memory 1000, a processor 2000, and a transmitter 3000.
  • the memory 1000 is connected to the transmitter 3000, and the processor 2000 and the memory 1000 are respectively sent. Connected to 3000;
  • the memory 1000 stores a set of program codes
  • the transmitter 3000 and the processor 2000 are configured to invoke the program code stored in the memory 1000, and perform the following operations:
  • the processor 2000 is configured to determine a location of each subcarrier used to carry the reference signal in a physical resource block pair, where three subcarriers in the physical resource block pair are used to carry a reference signal, and each of the subcarrier codes Multiplexing up to four reference signal ports using different orthogonal mask OCCs, and the reference signal ports of each of the subcarriers code division multiplexing are the same;
  • the processor 2000 is further configured to determine an OCC used on each subcarrier according to a port number of the reference signal port and a subcarrier where each of the reference signals is located, where the length of the OCC is 4;
  • the processor 2000 is further configured to modulate a sequence of reference signals carried on each of the subcarriers according to each of the OCCs to obtain a target sequence of reference signals carried on each of the subcarriers;
  • the transmitter 3000 is configured to map a target sequence of reference signals carried by each of the subcarriers to a resource corresponding to each of the subcarriers for transmission.
  • the processor 2000 is specifically configured to:
  • an OCC used by each of the subcarriers is W1, or W2, or W3 or W4;
  • W is a 4-dimensional orthogonal matrix
  • A W(p,1)
  • B W(p,2)
  • C W(p,3)
  • D W(p,4);
  • the W(p, m) represents a value corresponding to the pth row and the mth column of the orthogonal matrix W, the p corresponding to the port number of the reference signal, and the m is 1 to 4;
  • the W1 [A, B, C, D]
  • the W2 [B, A, D, C]
  • the W3 [C, D, A, B], or, [C, D, B , A]
  • the W4 [D, C, B, A], or, [D, C, A, B].
  • the processor 2000 is specifically configured to:
  • the predetermined rule is to ensure that the number of A, B, C, and D appearing in the OFDM symbol of the orthogonal frequency division multiplexing code in which the reference signals are located in the four consecutive physical resource block pairs is the same.
  • the OCC adopted on each subcarrier includes:
  • the OCC used on the subcarriers n1, n3, and n8 is W3;
  • the OCC used on the subcarriers n5, n10, and n12 is W4;
  • the OCC used on the subcarriers n4, n6, and n11 is W1;
  • the OCC used on subcarriers n2, n7, and n9 is W2;
  • y is 0 or 1 or 2 or 3;
  • the index of the physical resource block is an index of all physical resource block pairs included in the maximum system bandwidth sorted according to low frequency to high frequency.
  • the OCC adopted on each subcarrier includes:
  • the OCC used on subcarriers n1, n5, and n9 is W3;
  • the OCC used on subcarriers n2, n6, and n10 is W1;
  • the OCC used on subcarriers n3, n7, and n11 is W2;
  • the OCC used on the subcarriers n4, n8, and n12 is W4;
  • y is 0 or 1 or 2 or 3;
  • the index of the physical resource block is an index of all physical resource block pairs included in the maximum system bandwidth sorted according to low frequency to high frequency.
  • the OCC adopted on each subcarrier includes:
  • the OCC used on the subcarriers n1, n3, and n5 is W3;
  • the OCC used on subcarriers n2, n4, and n6 is W2;
  • the OCC used on subcarriers n7, n9, and n11 is W1;
  • the OCC used on the subcarriers n8, n10, and n12 is W4;
  • y is 0 or 1 or 2 or 3;
  • the index of the physical resource block is an index of all physical resource block pairs included in the maximum system bandwidth sorted according to low frequency to high frequency.
  • the OCC adopted on each subcarrier includes:
  • the OCC used on the subcarriers n1, n5, and n9 is W1;
  • the OCC used on subcarriers n2, n6, and n10 is W2;
  • the OCC used on subcarriers n3, n7, and n11 is W3;
  • the OCC used on the subcarriers n4, n8, and n12 is W4;
  • y is 0 or 1 or 2 or 3;
  • the index of the physical resource block is an index of all physical resource block pairs included in the maximum system bandwidth sorted according to low frequency to high frequency.
  • the OCC adopted on each subcarrier includes:
  • the OCC used on subcarriers n1, n5, and n9 is W3;
  • the OCC used on subcarriers n2, n6, and n10 is W2;
  • the OCC used on subcarriers n3, n7, and n11 is W1;
  • the OCC used on the subcarriers n4, n8, and n12 is W4;
  • y is 0 or 1 or 2 or 3;
  • the index of the physical resource block is an index of all physical resource block pairs included in the maximum system bandwidth sorted according to low frequency to high frequency.
  • an OCC adopted by every two adjacent subcarriers does not include the W1 and the W3. Adjacent, the W2 and the W4 are adjacent, the W1 is adjacent to the W1, the W2 is adjacent to the W2, the W3 is adjacent to the W3, and the W4 and the W4 are adjacent. Adjacent state.
  • each reference signal adopts an OCC and a transmission mode of TM8, TM9, and TM10 on each subcarrier.
  • the reference signals of the same port number are the same as the OCC used on the corresponding subcarriers;
  • the port The reference signals of numbers 7 and 8 adopt the same OCC on each subcarrier and the reference signals of the same port number whose transmission modes are TM8, TM9 and TM10 are the same as the OCC adopted on the corresponding subcarriers, and the port number is 11
  • the OCC used by the signal on each subcarrier is the same as the OCC used for the reference signal with port number 12 of TM8, TM9 and TM10 on the adjacent subcarriers, and the reference signal with port number 13 is used on each subcarrier.
  • the OCC is the same as the OCC used for the reference signal with port number 14 of TM8, TM9 and TM10 on its adjacent subcarriers.
  • the reference signal is a demodulation reference signal DMRS
  • the subcarriers for carrying the reference signal in each of the physical resource blocks are subcarriers 1, 6, and 11;
  • the foregoing base station may perform the implementation manners described in the foregoing steps in the first embodiment of the resource mapping method provided by the foregoing embodiment of the present invention, and the implementation manners described in the foregoing steps in the foregoing embodiments may be used. , will not repeat them here.
  • the base station may use three subcarriers for carrying reference signals in each physical resource block pair, and the reference signal port of each subcarrier code division multiplexing is less than or equal to four, and each reference signal port is adopted.
  • the OCC of length 4 used on each subcarrier is determined according to the port number of each reference signal port and the subcarrier where each reference signal is located.
  • each OCC a sequence of reference signals carried on each subcarrier is modulated, and a sequence of reference signals carried on each subcarrier is modulated onto a resource where each subcarrier is located for transmission, thereby realizing
  • the mapping of the OCC with the time-frequency resource of length 4 is performed in the scenario where the sub-carriers are code-multiplexed with the four reference signal ports.
  • FIG. 13 is a schematic structural diagram of an embodiment of a user equipment according to an embodiment of the present invention.
  • the user equipment described in the embodiment of the present invention includes: a memory 5000, a processor 6000 and a receiver 7000, the memory 5000 is connected to the receiver 7000, the processor 6000 and the memory 5000 and the The receiver 7000 is connected;
  • the memory 5000 stores a set of program codes
  • the receiver 7000 and the processor 6000 are configured to invoke the storage in the memory 5000 Program code, do the following:
  • the processor 6000 is configured to determine a location of each subcarrier used to carry the reference signal in a physical resource block pair, where three subcarriers in the physical resource block pair are used to carry a reference signal, and each of the subcarrier codes Multiplexing up to four reference signal ports using different orthogonal mask OCCs, and the reference signal ports of each of the subcarriers code division multiplexing are the same;
  • the processor 6000 is further configured to determine an OCC used on each subcarrier according to a port number of the reference signal port and a subcarrier where each of the reference signals is located, where the length of the OCC is 4;
  • the receiver 7000 is configured to detect, according to each of the OCCs, a modulated reference signal sent by a base station received on each of the subcarriers.
  • the processor 6000 is specifically configured to:
  • an OCC used by each of the subcarriers is W1, or W2, or W3 or W4;
  • W is a 4-dimensional orthogonal matrix
  • A W(p,1)
  • B W(p,2)
  • C W(p,3)
  • D W(p,4);
  • the W(p, m) represents a value corresponding to the pth row and the mth column of the orthogonal matrix W, the p corresponding to the port number of the reference signal, and the m is 1 to 4;
  • the W1 [A, B, C, D]
  • the W2 [B, A, D, C]
  • the W3 [C, D, A, B], or, [C, D, B , A]
  • the W4 [D, C, B, A], or, [D, C, A, B].
  • the processor 6000 is specifically configured to:
  • the predetermined rule is to ensure that the number of A, B, C, and D appearing in the OFDM symbol of the orthogonal frequency division multiplexing code in which the reference signals are located in the four consecutive physical resource block pairs is the same.
  • the OCC adopted on each subcarrier includes:
  • the OCC used on the subcarriers n1, n3, and n8 is W3;
  • the OCC used on the subcarriers n5, n10, and n12 is W4;
  • the OCC used on the subcarriers n4, n6, and n11 is W1;
  • the OCC used on subcarriers n2, n7, and n9 is W2;
  • y is 0 or 1 or 2 or 3;
  • the index of the physical resource block is an index of all physical resource block pairs included in the maximum system bandwidth sorted according to low frequency to high frequency.
  • the OCC adopted on each subcarrier includes:
  • the OCC used on subcarriers n1, n5, and n9 is W3;
  • the OCC used on subcarriers n2, n6, and n10 is W1;
  • the OCC used on subcarriers n3, n7, and n11 is W2;
  • the OCC used on the subcarriers n4, n8, and n12 is W4;
  • y is 0 or 1 or 2 or 3;
  • the index of the physical resource block is an index of all physical resource block pairs included in the maximum system bandwidth sorted according to low frequency to high frequency.
  • the OCC adopted on each subcarrier includes:
  • the OCC used on the subcarriers n1, n3, and n5 is W3;
  • the OCC used on subcarriers n2, n4, and n6 is W2;
  • the OCC used on subcarriers n7, n9, and n11 is W1;
  • the OCC used on the subcarriers n8, n10, and n12 is W4;
  • y is 0 or 1 or 2 or 3;
  • the index of the physical resource block is an index of all physical resource block pairs included in the maximum system bandwidth sorted according to low frequency to high frequency.
  • the OCC adopted on each subcarrier includes:
  • the OCC used on the subcarriers n1, n5, and n9 is W1;
  • the OCC used on subcarriers n2, n6, and n10 is W2;
  • the OCC used on subcarriers n3, n7, and n11 is W3;
  • the OCC used on the subcarriers n4, n8, and n12 is W4;
  • y is 0 or 1 or 2 or 3;
  • the index of the physical resource block is an index of all physical resource block pairs included in the maximum system bandwidth sorted according to low frequency to high frequency.
  • the OCC adopted on each subcarrier includes:
  • the OCC used on subcarriers n1, n5, and n9 is W3;
  • the OCC used on subcarriers n2, n6, and n10 is W2;
  • the OCC used on subcarriers n3, n7, and n11 is W1;
  • the OCC used on the subcarriers n4, n8, and n12 is W4;
  • y is 0 or 1 or 2 or 3;
  • the index of the physical resource block is an index of all physical resource block pairs included in the maximum system bandwidth sorted according to low frequency to high frequency.
  • an OCC adopted by every two adjacent subcarriers does not include the W1 and the W3. Adjacent, the W2 and the W4 are adjacent, the W1 is adjacent to the W1, the W2 is adjacent to the W2, the W3 is adjacent to the W3, and the W4 and the W4 are adjacent. Adjacent state.
  • each reference signal adopts an OCC and a transmission mode of TM8, TM9, and TM10 on each subcarrier.
  • the reference signals of the same port number are the same as the OCC used on the corresponding subcarriers;
  • the reference signals of port numbers 7 and 8 adopt OCC and transmission modes of TM8, TM9, and TM10 on each subcarrier.
  • the reference signals of the same port number are the same as the OCC used on the corresponding subcarriers.
  • the reference signal with port number 11 is the same as the OCC used for the reference signal with port number 12 of TM8, TM9 and TM10 on the adjacent subcarriers, and the reference signal with port number 13 is the same.
  • the OCC employed on each subcarrier is the same as the OCC used for the reference signal with port number 14 of TM8, TM9, and TM10 on the adjacent subcarriers.
  • the reference signal is a demodulation reference signal DMRS
  • the subcarriers for carrying the reference signal in each of the physical resource blocks are subcarriers 1, 6, and 11;
  • the foregoing user equipment may perform the implementation manners described in the foregoing steps in the second embodiment of the resource mapping method provided by the foregoing embodiment of the present disclosure.
  • the foregoing user equipment may perform the implementation manners described in the foregoing steps in the second embodiment of the resource mapping method provided by the foregoing embodiment of the present disclosure.
  • the user equipment may use three subcarriers for carrying reference signals in each physical resource block pair, and the reference signal port of each subcarrier code division multiplexing is less than or equal to four, and each reference signal port
  • the OCC of length 4 used on each subcarrier is determined according to the port number of each reference signal port and the subcarrier where each reference signal is located.
  • the modulated reference signal received on each subcarrier is detected to obtain corresponding user data, and the length is 4 in a scenario where each subcarrier is code-multiplexed with four reference signal ports at most. Mapping of OCC and time-frequency resources.
  • the storage medium may be a magnetic disk, an optical disk, a read-only memory (ROM), or a random access memory (RAM).

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Abstract

Conformément à des modes de réalisation, la présente invention concerne un procédé de mappage de ressource qui comprend les opérations suivantes : une station de base détermine des positions de différentes sous-porteuses utilisées pour acheminer des signaux de référence dans une paire de blocs de ressources physiques, la paire de blocs de ressources physiques ayant trois sous-porteuses utilisées pour acheminer les signaux de référence, chacune des sous-porteuses effectuant un multiplexage par répartition en code d'au plus quatre ports de signal de référence en utilisant différents OCC, les ports de signal de référence ayant subi un multiplexage par répartition en code par les différentes sous-porteuses étant les mêmes ; la station de base détermine, selon des numéros de port des ports de signal de référence et les sous-porteuses dans lesquelles les différents signaux de référence sont situés, des OCC utilisés sur les différentes sous-porteuses ; la station de base module, selon les différents OCC, la séquence des signaux de référence acheminés par les différentes sous-porteuses pour obtenir une séquence cible ; la station de base mappe la séquence cible à des ressources correspondant aux différentes sous-porteuses pour une transmission. Des modes de réalisation de la présente invention concernent en outre un appareil de mappage de ressource. Selon les modes de réalisation de la présente invention, un mappage d'OCC ayant une longueur de 4 à une ressource temps-fréquence peut être mis en œuvre dans un scénario dans lequel chaque sous-porteuse effectue un multiplexage par répartition en code d'au plus quatre ports de signal de référence.
PCT/CN2015/090847 2015-09-25 2015-09-25 Procédé et appareil de mappage de ressource WO2017049646A1 (fr)

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