WO2016011598A1 - 一种交织传输的方法、发送设备、接收设备以及系统 - Google Patents

一种交织传输的方法、发送设备、接收设备以及系统 Download PDF

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Publication number
WO2016011598A1
WO2016011598A1 PCT/CN2014/082686 CN2014082686W WO2016011598A1 WO 2016011598 A1 WO2016011598 A1 WO 2016011598A1 CN 2014082686 W CN2014082686 W CN 2014082686W WO 2016011598 A1 WO2016011598 A1 WO 2016011598A1
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Prior art keywords
elements
data blocks
data
sequence
new data
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PCT/CN2014/082686
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English (en)
French (fr)
Inventor
陈大庚
倪俊
韩玮
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华为技术有限公司
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Priority to PCT/CN2014/082686 priority Critical patent/WO2016011598A1/zh
Publication of WO2016011598A1 publication Critical patent/WO2016011598A1/zh

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B7/00Radio transmission systems, i.e. using radiation field
    • H04B7/02Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station

Definitions

  • the present invention relates to the field of communications technologies, and in particular, to a method for interleaving transmission, a transmitting device, a receiving device, and a system. Background technique
  • the Long Term Evolution (LTE) system in the 3rd Generation Partnership Project (3GPP) is the mainstream next-generation wireless cellular communication standard.
  • the air interface rate of the LTE system refers to the throughput rate of the air interface.
  • the LTE system uses time diversity, frequency diversity, and space. Diversity diversity techniques. For example: Time diversity is the transmission of multiple copies of the same information over a channel of multiple time slots, the multiple copies belonging to the channel coded signal.
  • the more different channels are experienced by multiple copies of the same signal the better the diversity effect, and the higher the diversity gain obtained at the receiving end, the better the performance of the LTE system transmission, for example:
  • a signal is transmitted through only one channel. The transmission quality of this channel is very poor, then the receiving end may not be able to receive all the data of the signal. If multiple copies of the signal are dispersed in multiple channels, the receiving end can obtain the signal from the channel with better transmission quality. Most of the data, so the performance of the latter is better.
  • the downlink communication of the existing LTE system is formed by scrambling and modulating a plurality of code words (CWs) for transmission to form a plurality of data streams (Data Streams, DSs).
  • CWs code words
  • the data streams are directly mapped to the corresponding channels of different time-frequency null resources (a combination of time, frequency and space), so the gains of time diversity, frequency diversity and spatial diversity are not sufficiently improved.
  • time-frequency null resources a combination of time, frequency and space
  • the embodiment of the invention provides a method for interleaving transmission, which can improve the time diversity of the wireless transmission, the frequency diversity and the gain of the spatial diversity, and improve the performance of the wireless transmission.
  • a first aspect of the embodiments of the present invention provides a method for interleaving transmission, including:
  • the data stream comprising a plurality of data blocks, the data block comprising a plurality of elements
  • Each data stream carrying the new data block is mapped to a corresponding signal space layer and transmitted to the receiving device through the antenna port.
  • the interleaving the at least two elements of the data block to generate a new data block includes:
  • the data stream includes an even number of the data blocks, pair the data blocks in the data stream pairwise, and interleave the elements of the paired data blocks to generate two new data blocks;
  • the data stream includes an odd number of the data blocks, after deleting any one of the data blocks in the data stream, pair the remaining data blocks pairwise, and pair the data blocks
  • the elements are interleaved to generate two new data blocks.
  • the interleaving the elements of the at least two of the data blocks to generate a new data block includes:
  • the first sequence of elements includes multiple packets that are serially arranged, and the packet includes at least one of the elements;
  • the changing the order of the elements in the first element sequence to form the second element sequence includes:
  • the order of arrangement of the packets in the first element sequence is changed to form the second element sequence.
  • the changing the order of the elements in the first element sequence to form the second element sequence include:
  • the matrix of elements after the offset processing is converted into the second sequence of elements.
  • the first element sequence includes multiple packets that are serially arranged, and the packet includes at least one of the elements;
  • Performing an offset processing on the elements in the element matrix includes:
  • the grouping in the element matrix is subjected to an offset process.
  • the method further includes: acquiring the number N layer of the signal space layer , and the elements in the data block Number N e and the number of elements in the group N ge ;
  • a second aspect of the embodiments of the present invention provides a method for interleaving transmission, including: Acquiring at least one data stream sent by the sending device through the antenna port, where the data stream includes a plurality of new data blocks, the new data block includes a plurality of elements, wherein the new data block is data sent by the sending device
  • the elements of at least two data blocks in the stream are interleaved, and the number of the new data blocks is the same as the number of the data blocks being interleaved;
  • the new data block is configured by the sending device to pair the data blocks in the data stream, and the paired elements of the data block are interleaved into pairs. Generated;
  • the new data block is generated by the sending device by: extracting at least two data blocks in the data stream, and extracting The data blocks are serially arranged in a predetermined order to form a first element sequence, the first element sequence includes elements of the extracted data block, and an order of elements in the first element sequence is changed. Forming a second element sequence; sequentially acquiring the new data block from the second element sequence in the preset order, and acquiring the number of the new data block is the same as the number of the extracted data block ;
  • a third aspect of the embodiments of the present invention provides a transmitting device for interleaving transmission, including:
  • a data stream obtaining module configured to acquire at least one modulated data stream, where the data stream includes multiple data blocks, where the data block includes multiple elements;
  • a data block interleaving module configured to respectively perform at least two of the data blocks in each of the data streams
  • the element is interleaved to generate a new data block, the number of the new data block being the same as the number of the data blocks being interleaved;
  • a data stream mapping module configured to respectively map each data stream carrying the new data block to a corresponding signal space layer and send the data stream to the receiving device through the antenna port.
  • the data block interleaving module is specifically configured to: if the data stream includes an even number of the data blocks, then the data blocks in the data stream are two Two pairs, and interleaving the elements of the paired data blocks to generate two new data blocks;
  • the data stream includes an odd number of the data blocks, after deleting any one of the data blocks in the data stream, pair the remaining data blocks pairwise, and pair the data blocks
  • the elements are interleaved to generate two new data blocks.
  • the data block interleaving module includes:
  • a first element sequence constituting unit configured to extract at least two of the data blocks in the data stream, where the first element sequence includes elements of the extracted data block;
  • a second element sequence constituting unit configured to change an arrangement order of the elements in the first element sequence to form a second element sequence
  • a new data block obtaining unit configured to sequentially acquire new data blocks from the second element sequence in the preset order, where the number of the new data blocks is the same as the number of the extracted data blocks.
  • the first element sequence includes multiple packets that are serially arranged, and the packet includes at least one of the elements;
  • the second element sequence constituting unit is specifically configured to change an arrangement order of the groups in the first element sequence to form the second element sequence.
  • the second element sequence constituent unit includes:
  • a first conversion subunit configured to convert the first element sequence into an element matrix
  • An offset processing sub-unit configured to perform offset processing on the elements in the element matrix
  • the first element sequence includes multiple packets that are serially arranged, and the packet includes at least one of the elements;
  • the data block interleaving module is further configured to acquire the number N layer of the signal space layer , the data The number of elements N e in the block and the number of elements in the group N ge ;
  • the first conversion subunit is specifically used according to a formula
  • the offset processing subunit is specifically used according to a formula
  • the second conversion subunit is specifically used according to a formula
  • a fourth aspect of the embodiments of the present invention provides a receiving device for interleaving transmission, including:
  • a data stream obtaining module configured to acquire at least one data stream sent by the sending device by using an antenna port, where the data stream includes a plurality of new data blocks, where the new data block includes multiple elements, where the new data block is Generating, by the transmitting device, the elements of at least two data blocks in the data stream are interleaved, the number of the new data blocks being the same as the number of the data blocks being interleaved;
  • a data block deinterleaving module configured to perform deinterleaving processing on the elements of the plurality of the new data blocks in each of the data streams.
  • the new data block is to be
  • the data blocks in the data stream are paired in pairs, and the elements of the paired data blocks are interleaved and generated in pairs;
  • the data block deinterleaving module is specifically configured to perform deinterleaving processing on the two new data blocks generated in pairs in each of the data streams.
  • the new data block is generated by the sending device by: extracting at least two data blocks in the data stream, and extracting The data blocks are serially arranged in a predetermined order to form a first element sequence, the first element sequence includes elements of the extracted data block, and an order of elements in the first element sequence is changed. Forming a second element sequence; sequentially acquiring the new data block from the second element sequence in the preset order, and acquiring the number of the new data block is the same as the number of the extracted data block ;
  • the data block deinterleaving module is specifically configured to serially arrange the new data blocks in the preset order in each of the data streams to form the second element sequence, and the second The sequence of elements includes an element of the new data block; the order of the elements in the sequence of the second element is restored to an order of the elements in the sequence of the first element; in the preset order from the A data block is sequentially acquired in an element sequence, and the number of the obtained data blocks is the same as the number of the new data blocks.
  • a fifth aspect of the embodiments of the present invention provides a system for interleaving transmission, including the transmitting device provided by the third aspect, and the receiving device provided by the fourth aspect, where:
  • the transmitting device is configured to acquire the modulated at least one data stream, where the data stream includes a plurality of data blocks, the data block includes a plurality of elements, and at least two of the data are respectively in each of the data streams Interleaving the elements of the block to generate a new data block, the number of the new data blocks being the same as the number of the data blocks being interleaved; mapping each data stream carrying the new data block to a corresponding one a signal space layer and sent to the receiving device through an antenna port;
  • the receiving device is configured to acquire at least one data stream that is sent by the sending device by using an antenna port, where the data stream includes a plurality of new data blocks, where the new data block includes multiple elements, where the new data block Is generated by the transmitting device interleaving elements of at least two data blocks in the data stream, the number of the new data blocks being the same as the number of the data blocks being interleaved; The elements of the plurality of new data blocks in the stream are deinterleaved.
  • a sixth aspect of the embodiments of the present invention provides a computer storage medium storing a program, the program including some or all of the steps of the method for interleaving transmission provided by the first aspect.
  • a seventh aspect of the embodiments of the present invention provides a computer storage medium, where the computer storage medium stores a program, and the program includes some or all of the steps of the method for interleaving transmission provided by the second aspect.
  • An eighth aspect of the embodiments of the present invention provides a transmitting device for interleaving transmission, including a signal transceiver, a memory, and a processor, wherein the memory stores a set of programs, and the processor is configured to call a program stored in the memory for execution. The following operations:
  • the data stream comprising a plurality of data blocks, the data block comprising a plurality of elements
  • a ninth aspect of the embodiments of the present invention provides a receiving device for interleaving transmission, including a signal transceiver, a memory, and a processor, wherein the memory stores a set of programs, and the processor is configured to call a program stored in the memory for execution. The following operations:
  • the new data block includes a plurality of elements, wherein the new data block is data sent by the sending device
  • the elements of at least two data blocks in the stream are interleaved, and the number of the new data blocks is the same as the number of the data blocks being interleaved;
  • the embodiment of the present invention generates a new data block by interleaving elements of at least two data blocks in each acquired data stream, where the data stream includes multiple data blocks, and the data block includes multiple elements.
  • the number of new data blocks is the same as the number of data blocks to be interleaved, and will be carried separately
  • the data stream of the new data block is mapped to the corresponding signal space layer and sent to the receiving device through the antenna port, thereby realizing the data stream interleaving transmission, which can improve the time diversity of the wireless transmission, the frequency diversity and the gain of the spatial diversity, and improve the wireless The performance of the transmission.
  • FIG. 1 is a schematic diagram of an application of a method for interleaving transmission according to an embodiment of the present invention
  • FIG. 2 is a schematic flowchart of a method for interleaving transmission according to an embodiment of the present invention
  • FIG. 3 is a schematic diagram of another embodiment of the present invention.
  • FIG. 4 is a schematic flowchart of another method for interleaving transmission according to another embodiment of the present invention
  • FIG. 5 is a schematic diagram of another method for interleaving transmission according to another embodiment of the present invention
  • FIG. 6 is a schematic flowchart of a method for interleaving transmission according to another embodiment of the present invention
  • FIG. 7 is a schematic structural diagram of a transmitting device for interleaving transmission according to an embodiment of the present invention.
  • FIG. 9 is a schematic structural diagram of a second element sequence constituting unit according to an embodiment of the present invention.
  • FIG. 10 is a receiving device for interleaving transmission according to an embodiment of the present invention.
  • FIG. 11 is a schematic structural diagram of a system for interleaving transmission according to an embodiment of the present invention;
  • FIG. 12 is a schematic diagram of the present invention;
  • FIG. 13 is a schematic structural diagram of another receiving device for interleaving transmission according to an embodiment of the present invention;
  • FIG. 14 is a schematic diagram of a data stream provided by an embodiment of the present invention; Schematic diagram
  • 15 is a schematic diagram of an interleaving manner of an element according to an embodiment of the present invention.
  • FIG. 16 is a schematic diagram of an interleaving manner of another element according to an embodiment of the present invention
  • FIG. 17 is a schematic diagram of another interleaving manner of an element according to an embodiment of the present invention
  • FIG. 18 is an element according to an embodiment of the present invention.
  • FIG. 19 is a schematic diagram of a new data stream according to an embodiment of the present invention.
  • GSM Global System of Mobile communication
  • CDMA Code Division Multiple Access
  • WCDMA Wideband Code Division Multiple Access
  • GPRS General Packet Radio Service
  • LTE Long Term Evolution
  • FDD Frequency Division Duplex
  • TDD Time Division Duplex
  • UMTS Universal Mobile Telecommunication System
  • WiMAX Global Interoperability for Microwave Access
  • the base station may be a base station (Base Transceiver Station, referred to as "BTS,”) in GSM or CDMA, or may be a base station (NodeB, referred to as “NB,”) in WCDMA, or may be
  • BTS Base Transceiver Station
  • NodeB NodeB
  • WCDMA Wideband Code Division Multiple Access
  • eNB The evolved base station (Evolutional Node B, hereinafter referred to as "eNB”) in LTE is not limited in the present invention. For convenience of description, the following embodiments will be described by taking an eNB as an example.
  • a user equipment may be referred to as a terminal, a mobile station (Mobile Station, or simply "MS"), or a mobile terminal (Mobile Terminal).
  • the user equipment may communicate with one or more core networks via a Radio Access Network (“RAN"), for example, the user equipment may be a mobile telephone (or “cellular” telephone) or have a mobile terminal
  • RAN Radio Access Network
  • the user device can also be a portable, pocket, handheld, computer built-in or in-vehicle mobile device that exchanges voice and/or data with the wireless access network.
  • the downlink transmission of the LTE system is taken as an example to introduce the application environment of the embodiment of the present invention.
  • the input is a plurality of codewords (Code Word, referred to as "CW") in parallel.
  • the codeword includes a plurality of code blocks (Code Blocks, simply referred to as "CB"), each of which is scrambled and After the modulation, a data stream (Data Stream, abbreviated as "DS”) is generated.
  • a data block (Data Block, abbreviated as "DB) is generated, and the embodiment of the present invention can implement the data stream.
  • FIG. 2 is a schematic diagram of an interleaving transmission method according to an embodiment of the present invention.
  • the flow of the interleaved transmission in this embodiment as shown in the figure may include:
  • the embodiment of the present invention takes the downlink transmission of the LTE system as an example, so the data stream is a data signal carrying a message that the transmitting device downlink transmits to the receiving device, and the sending device may be a base station, and the receiving device may be a user. device. It should be noted that the embodiments of the present invention are directed to the downlink transmission of the LTE system, but are not limited thereto. The application in the uplink transmission of the LTE system or other communication systems still falls within the protection scope of the present invention.
  • the data stream includes a plurality of data blocks, and the data block includes a plurality of elements (Element).
  • Element refer to a schematic diagram of a data flow shown in FIG. 14, where the data flow includes 4 data blocks ( As shown in the numbers 1, 2, 3 and 4, each data block consists of 4 elements. The elements are sequentially arranged in a data block in a certain order.
  • the transmitting device acquires one or more data streams that are modulated and input.
  • S102 Interleave, at each of the data streams, the elements of at least two of the data blocks to generate a new data block, where the number of the new data blocks is the same as the number of the data blocks that are interleaved. .
  • the sending device interleaves the elements of at least two data blocks in the data stream in each data stream to generate a new data block, if there are N data blocks in the data stream, M data blocks are randomly selected for interleaving, where M ⁇ N.
  • M the number of new data blocks generated is the same as the number of data blocks that are interleaved.
  • the sending device first determines, in each data stream, whether the number of data blocks of the data stream is even or odd, and performs the following steps according to the determined result:
  • the data blocks in the data stream are paired pairwise, and the elements of the paired data blocks are interleaved to generate two new data blocks.
  • two data blocks can be arbitrarily selected as a pair, which is not limited herein.
  • the data stream includes N DB data blocks, and the sending device can put the first and Nth DB /2+1 data blocks together for element interleaving, and the second and N DB /2+2 The data blocks are put together for element interleaving...
  • the Nth DB /2 data blocks and the Nth DB data blocks are put together for element interleaving.
  • a data stream consists of four data blocks (as shown in DB1, DB2, DB3, and DB4), and now the elements of each data block.
  • the data stream includes an odd number of the data blocks, after deleting any one of the data blocks in the data stream, pair the remaining data blocks pairwise, and pair the data blocks
  • the elements are interleaved to generate two new data blocks.
  • one data block can be arbitrarily divided, and two data blocks can be arbitrarily selected as a pair, which is not limited herein.
  • the data stream includes N DB data blocks, and the sending device can put the first and Nth DB / 2 + 1 data blocks together for element interleaving, and the second and N DB / 2 + 2 The data blocks are put together for element interleaving...
  • the Nth DB / 2-l data block and the Nth DB data block are put together for element interleaving.
  • FIG. 16 For example, see the schematic diagram of the interleaving method of another element shown in Figure 16. Assume that a data stream consists of five data blocks (as shown in DB1, DB2, DB3, DB4, and DB5). The elements of the block indicate the serial number, DB1 and DB4 are interleaved, DB2 and DB5 are interleaved, and DB3 does not process. It can be seen that the number of elements of the newly obtained new data block has not changed, but the element changes.
  • the above embodiment is a relatively simple interleaving method.
  • the disadvantage is that the interleaving depth is insufficient, and in the case of an odd number of data blocks, at least one element of the data block cannot participate in the interleaving.
  • the sending device extracts, in each data stream, a first element sequence in the data stream, where the first element sequence includes the extracted elements of the data block, and changes the first element sequence.
  • the order of the elements forming a sequence of second elements; from the second element in a predetermined order
  • the new data block is sequentially acquired in the prime sequence, and the number of new data blocks is the same as the number of extracted data blocks.
  • the specific implementation process please refer to the schematic diagram of the interleaving manner of another element shown in FIG. 17, where the first element sequence is composed of elements of a plurality of data blocks, and idx in represents the sequence number of the elements in the first element sequence. , DB.
  • Ut represents the second element sequence, idx.
  • Ut represents the serial number output after interleaving, that is, the serial number of the element in the second element sequence.
  • the transmitting device first serially arranges the four data blocks of DB1, DB2, DB3, and DB4 to form the first element sequence DB in , and then changes The order in which the elements in the first element sequence DB in are arranged constitutes the second element sequence DB.
  • Ut for example, the position of the element 6 in the first element sequence DB in in the figure is changed to the second element sequence DB.
  • the position of the element 14 in ut is finally from the second element sequence DB in the order of DB1, DB2.DB3, and DB4.
  • Ut sequentially acquires new data blocks DB1, DB2, DB3, and DB4, and it can be seen that the number of elements of the newly obtained new data block has not changed, but the elements have changed.
  • the transmitting device may further divide the first element sequence into a plurality of groups in units of elements, that is, the first element sequence includes a plurality of groups arranged in series, each group includes at least one element;
  • the order of the groups in an element sequence constitutes a second element sequence; finally, new data blocks are sequentially acquired from the second element sequence in a preset order, and the number of new data blocks is the same as the number of extracted data blocks.
  • the specific implementation process can be analogized to the interleaving method shown in FIG. 17, except that the order of the change is a packet instead of an element. For example, see the schematic diagram of the packet interleaving method of one element shown in FIG. 18, five from left to right.
  • each data stream has 4 data blocks (each column represents 1 data block), the first data stream represents the data stream before the interleaving, and the second data stream represents the interleaving with one element as a group.
  • the data stream, the third data stream represents a data stream obtained by interleaving two elements, the fourth data stream represents a data stream obtained by interleaving three elements, and the fifth data stream is represented by four.
  • the element is a data stream obtained by interleaving the packets. It can be seen that the fewer elements included in the packet, the greater the interleaving depth, thereby changing the interleaving depth.
  • the transmitting device changes the order of the packets in the first element sequence, and the specific embodiment of the second element sequence may be: first converting the first element sequence into an element matrix; The element is subjected to an offset process; finally, the matrix of the element after the offset processing is converted into the second element sequence.
  • the transmitting device also needs to acquire the number N layer of the signal space layer , the number N e of elements in the data block, and the number N ge of elements in the packet.
  • the sending device can be based on the formula
  • Sending device can be based on formula
  • the offset processing is performed on the packets in the element matrix, where j. Ffset is the offset of the offset processing.
  • Sending device can be based on formula
  • the above embodiment is a detailed, specific and comprehensive interleaving method, which has the advantages of high interleaving depth and wide application object.
  • S103 Map each data stream carrying the new data block to a corresponding signal space layer and send it to the receiving device through the antenna port.
  • the signal space layer is a combination of resources of time, frequency, and space.
  • the sending device respectively maps each data stream carrying the new data block to a corresponding time, frequency, and space resource combination. Since the elements in the new data block are interleaved, it is equivalent to the original data block. The elements are scattered mapped onto multiple time-frequency resources, as shown in the schematic diagram of a new data stream of Figure 19, thereby obtaining gains over time diversity, frequency diversity, and spatial diversity.
  • the embodiment of the present invention generates a new data block by interleaving elements of at least two data blocks in each acquired data stream, where the data stream includes multiple data blocks, and the data block includes multiple elements, and the new data block
  • the number of data blocks is the same as the number of data blocks to be interleaved, and each data stream carrying the new data block is mapped to the corresponding signal space layer and sent to the receiving device through the antenna port, thereby realizing the data stream interleaving transmission. It can improve the time diversity of frequency transmission, frequency diversity and gain of spatial diversity, and improve the performance of wireless transmission.
  • FIG. 3 is a schematic diagram of a method for interleaving transmission according to another embodiment of the present invention, which may include:
  • the embodiment of the present invention takes the downlink transmission of the LTE system as an example, so the data stream is a data signal carrying a message that the transmitting device downlink transmits to the receiving device, and the sending device may be a base station, and the receiving device may be a user. device. It should be noted that the embodiments of the present invention are directed to the downlink transmission of the LTE system, but are not limited thereto. The application in the uplink transmission of the LTE system or other communication systems still falls within the protection scope of the present invention.
  • the data stream includes a plurality of data blocks, and the data block includes a plurality of elements (Element).
  • Element refer to a schematic diagram of a data flow shown in FIG. 14, where the data flow includes 4 data blocks ( As shown in the numbers 1, 2, 3 and 4, each data block consists of 4 elements. The elements are sequentially arranged in a data block in a certain order.
  • the transmitting device acquires one or more data streams that are modulated and input.
  • each data stream determine whether the number of data blocks included in the data stream is an even number.
  • the sending device interleaves the elements of at least two data blocks in the data stream into new data blocks in each data stream, and if there are N data blocks in the data stream, it may be randomly selected. M data blocks are interleaved, where M ⁇ N. It should be pointed out that, in general, the greater the interleaving depth, the better the transmission performance, but the computational complexity is increased, and more data needs to be calculated and processed for positional shifting. Therefore, the selection of M may depend on the transmission. A compromise between performance and complexity.
  • the number of new data blocks generated is the same as the number of data blocks that are interleaved. For example: Interleaving the elements of 4 data blocks, then the number of new data blocks generated is also 4, and the number of elements of each data block is unchanged.
  • step S204 is performed.
  • S203 Pair the data blocks in the data stream pairwise, and interleave the elements of the paired data blocks to generate two new data blocks.
  • the transmitting device pairs the data blocks in the data stream pairwise, and interleaves the elements of the paired data blocks to generate two new data blocks.
  • two data blocks can be arbitrarily selected as a pair, which is not limited herein.
  • the data stream includes N DB data blocks
  • the sending device can put the first and Nth DB /2+1 data blocks together for element interleaving, and the second and N DB /2+2 Data The blocks are put together for element interleaving...
  • the Nth DB /2 data blocks and the Nth DB data blocks are put together for element interleaving.
  • a data stream consists of four data blocks (as shown in DB1, DB2, DB3, and DB4), and now the elements of each data block.
  • the transmitting device removes any one of the data blocks in the data stream, the remaining data blocks are paired pairwise, and the elements of the paired data blocks are interleaved to generate two new ones. data block.
  • one data block can be arbitrarily divided, and two data blocks can be arbitrarily selected as a pair, which is not limited herein.
  • the data stream includes N DB data blocks, and the sending device can put the first and Nth DB /2+1 data blocks together for element interleaving, and the second and N DB /2+2 The data blocks are put together for element interleaving...
  • the Nth DB / 2-l data block and the Nth DB data block are put together for element interleaving.
  • FIG. 16 For example, see the schematic diagram of the interleaving method of another element shown in Figure 16. Assume that a data stream consists of five data blocks (as shown in DB1, DB2, DB3, DB4, and DB5). The elements of the block indicate the serial number, DB1 and DB4 are interleaved, DB2 and DB5 are interleaved, and DB3 does not process. It can be seen that the number of elements of the newly obtained new data block has not changed, but the element changes.
  • the signal space layer is a combination of resources of time, frequency, and space.
  • the sending device respectively maps each data stream carrying the new data block to a corresponding time, frequency, and space resource combination. Since the elements in the new data block are interleaved, it is equivalent to the original data block. The elements are scattered mapped onto multiple time-frequency resources, as shown in the schematic diagram of a new data stream of Figure 19, thereby obtaining gains over time diversity, frequency diversity, and spatial diversity.
  • the embodiment of the present invention generates a new data block by interleaving elements of at least two data blocks in each acquired data stream, where the data stream includes multiple data blocks, and the data block includes multiple elements, and the new data block
  • the number of data blocks is the same as the number of data blocks to be interleaved, and then each data stream carrying the new data block is mapped to the corresponding signal space layer and sent to the receiving device through the antenna port.
  • the data stream interleaving transmission can improve the time diversity, frequency diversity and spatial diversity gain of wireless transmission, and improve the performance of wireless transmission.
  • FIG. 4 is another method of interleaving transmission in another embodiment of the present invention, which may include:
  • the embodiment of the present invention takes the downlink transmission of the LTE system as an example, so the data stream is a data signal carrying a message that the transmitting device downlink transmits to the receiving device, and the sending device may be a base station, and the receiving device may be a user. device. It should be noted that the embodiments of the present invention are directed to the downlink transmission of the LTE system, but are not limited thereto. The application in the uplink transmission of the LTE system or other communication systems still falls within the protection scope of the present invention.
  • the data stream includes a plurality of data blocks, and the data block includes a plurality of elements (Element).
  • Element refer to a schematic diagram of a data flow shown in FIG. 14, where the data flow includes 4 data blocks ( As shown in the numbers 1, 2, 3 and 4, each data block consists of 4 elements. The elements are sequentially arranged in a data block in a certain order.
  • the transmitting device acquires one or more data streams that are modulated and input.
  • the sending device interleaves the elements of at least two data blocks in the data stream into new data blocks in each data stream, and if there are N data blocks in the data stream, it may be randomly selected.
  • M data blocks are interleaved, where M ⁇ N. It should be pointed out that, in general, the greater the interleaving depth, the better the transmission performance, but the computational complexity is increased, and more data needs to be calculated and processed for positional shifting. Therefore, the selection of M may depend on the transmission. A compromise between performance and complexity.
  • the number of new data blocks generated is the same as the number of data blocks that are interleaved. For example: Interleaving the elements of 4 data blocks, then the number of new data blocks generated is also 4, and the number of elements of each data block is unchanged.
  • the sending device extracts at least two of the data in the data stream in each data stream.
  • the first element sequence includes elements of the extracted data block.
  • DB in represents a first element sequence, which is composed of elements of a plurality of data blocks
  • idx in represents a sequence number of elements in the first element sequence
  • the transmitting device serially arranges the four data blocks of DB1, DB2, DB3, and DB4 to form the first element sequence DB in .
  • the sending device may first divide the first element sequence into multiple groups in units of elements, that is, the first element sequence includes multiple groups arranged in series, and each group includes at least one element.
  • the specific implementation process can be analogized to the arrangement in Figure 17, except that it is arranged in groups.
  • the transmitting device changes the order of the elements in the first element sequence to form a second element sequence.
  • Ut represents the second element sequence, idx.
  • Ut represents the serial number output after interleaving, that is, the serial number of the element in the second element sequence, wherein the transmitting device changes the order of the elements in the first element sequence DB in to constitute the second element sequence DB.
  • Ut the position of the element 6 of the first element sequence DB in ⁇ in the figure is changed to the second element sequence DB.
  • the position of element 14 in ut is changed to the second element sequence DB.
  • the transmitting device changes the order of the groups in the first element sequence to form a second element sequence.
  • the specific implementation process can be analogized to the interleaving method shown in Figure 17, except that the order of change is grouping instead of elements.
  • the new data block is sequentially acquired from the second element sequence in the preset order, and the number of the new data block is the same as the number of the extracted data blocks.
  • the sending device sequentially acquires new data blocks from the second element sequence in a preset order, and the number of new data blocks is the same as the number of extracted data blocks.
  • the specific implementation process please refer to the schematic diagram of the interleaving manner of another element shown in FIG. 17, in which the position of the element 6 in the first element sequence 08 ⁇ is changed to the second element sequence DB.
  • the position of the element 14 in ut is finally from the second element sequence DB in the order of DB1, DB2, DB3, and DB4.
  • Ut gets the new data blocks DB ⁇ , DB2', DB3' and DB4' in turn, and it can be seen that the number of elements of the newly obtained new data block has not changed, but the elements have changed.
  • the elements in the first element sequence have been classified into multiple groups, refer to the schematic diagram of the packet interleaving method of one element shown in FIG. 18, and there are 5 data streams from left to right, each data.
  • the stream has 4 data blocks (each column represents 1 data block), and the first data stream represents the data stream before interleaving, 2nd
  • the data stream represents a data stream obtained by interleaving one element as a packet
  • the third data stream represents a data stream obtained by interleaving two elements as a packet
  • the fourth data stream represents interleaving by grouping three elements.
  • the obtained data stream, the fifth data stream represents a data stream obtained by interleaving four elements as a group, and the smaller the number of elements included in the visible packet, the greater the interleaving depth, thereby changing the interleaving depth.
  • the signal space layer is a combination of resources of time, frequency, and space.
  • the sending device respectively maps each data stream carrying the new data block to a corresponding time, frequency, and space resource combination. Since the elements in the new data block are interleaved, it is equivalent to the original data block. The elements are scattered mapped onto multiple time-frequency resources, as shown in the schematic diagram of a new data stream of Figure 19, thereby obtaining gains over time diversity, frequency diversity, and spatial diversity.
  • the embodiment of the present invention generates a new data block by interleaving elements of at least two data blocks in each acquired data stream, where the data stream includes multiple data blocks, and the data block includes multiple elements, and the new data block
  • the number of data blocks is the same as the number of data blocks to be interleaved, and each data stream carrying the new data block is mapped to the corresponding signal space layer and sent to the receiving device through the antenna port, thereby realizing the data stream interleaving transmission. It can improve the time diversity of frequency transmission, frequency diversity and gain of spatial diversity, and improve the performance of wireless transmission.
  • FIG. 5 is a schematic diagram of another method for interleaving transmission according to another embodiment of the present invention, which may include:
  • the embodiment of the present invention takes the downlink transmission of the LTE system as an example, so the data stream is a data signal carrying a message that the transmitting device downlink transmits to the receiving device, and the sending device may be a base station, and the receiving device may be a user. device. It should be noted that the embodiments of the present invention are directed to the downlink transmission of the LTE system, but are not limited thereto. The application in the uplink transmission of the LTE system or other communication systems still falls within the protection scope of the present invention.
  • the data stream includes a plurality of data blocks, and the data block includes a plurality of elements (Element).
  • element refer to a schematic diagram of a data flow shown in FIG. 14, where the data flow includes 4 data blocks ( As shown in the numbers 1, 2, 3 and 4, each data block consists of 4 elements. Wherein the element The primes are arranged in the data block in a certain order.
  • the transmitting device acquires one or more data streams that are modulated and input.
  • the sending device interleaves the elements of at least two data blocks in the data stream into new data blocks in each data stream, and if there are N data blocks in the data stream, it may be randomly selected.
  • M data blocks are interleaved, where M ⁇ N. It should be pointed out that, in general, the greater the interleaving depth, the better the transmission performance, but the computational complexity is increased, and more data needs to be calculated and processed for positional shifting. Therefore, the selection of M may depend on the transmission. A compromise between performance and complexity.
  • the number of new data blocks generated is the same as the number of data blocks that are interleaved. For example: Interleaving the elements of 4 data blocks, then the number of new data blocks generated is also 4, and the number of elements of each data block is unchanged.
  • the sending device extracts at least two data blocks in the data stream, and serially arranges the extracted data blocks in a preset order to form a first element sequence, where the first element sequence includes multiple serial sequences.
  • a grouping the grouping comprising at least one element.
  • the transmitting device also needs to obtain the number N layer of the signal space layer, the number of elements in the data block N e and the number of elements in the packet N ge
  • the sending device is based on the formula
  • ( i in , jin ) is the sequence number of the element in the element matrix.
  • the sending device is based on the formula
  • the offset processing is performed on the packets in the element matrix, where j. Ffset is the offset of the offset processing.
  • the sending device sequentially acquires new data blocks from the second element sequence in a preset order, wherein the number of new data blocks is the same as the number of extracted data blocks.
  • each data stream has 4 data blocks (each column represents 1 data block), the first The data stream represents the data stream before interleaving, the second data stream represents the data stream obtained by interleaving with one element as a packet, and the third data stream represents the data stream obtained by interleaving two elements as a group, the fourth data stream The data stream represents a data stream obtained by interleaving three elements as a group, and the fifth data stream represents a data stream obtained by interleaving four elements as a group.
  • the fewer elements included in the visible packet the greater the interleaving depth, This can change the interleaving depth.
  • the signal space layer is a combination of resources of time, frequency, and space.
  • the sending device respectively maps each data stream carrying the new data block to a corresponding time, frequency, and space resource combination. Since the elements in the new data block are interleaved, it is equivalent to the original data block. The elements are scattered mapped onto multiple time-frequency resources, as shown in the schematic diagram of a new data stream of Figure 19, thereby obtaining gains over time diversity, frequency diversity, and spatial diversity.
  • the embodiment of the present invention generates a new data block by interleaving elements of at least two data blocks in each acquired data stream, where the data stream includes multiple data blocks, and the data block includes multiple elements, and the new data block
  • the number of data blocks is the same as the number of data blocks to be interleaved, and each data stream carrying the new data block is mapped to the corresponding signal space layer and sent to the receiving device through the antenna port, thereby realizing the data stream interleaving transmission. It can improve the time diversity of frequency transmission, frequency diversity and gain of spatial diversity, and improve the performance of wireless transmission.
  • FIG. 6 is a schematic diagram of a method for interleaving transmission according to another embodiment of the present invention, which may include:
  • the sending device acquires the modulated at least one data stream, where the data stream includes a plurality of data blocks, where the data block includes multiple elements.
  • the embodiment of the present invention takes the downlink transmission of the LTE system as an example, so the data stream is a data signal carrying a message that the transmitting device downlink transmits to the receiving device, and the sending device may be a base station, and the receiving device may be a user. device. It should be noted that the embodiments of the present invention are directed to the downlink transmission of the LTE system, but are not limited thereto. The application in the uplink transmission of the LTE system or other communication systems still falls within the protection scope of the present invention.
  • the data stream includes a plurality of data blocks, and the data block includes a plurality of elements (Element).
  • Element refer to a schematic diagram of a data flow shown in FIG. 14, where the data flow includes 4 data blocks ( As shown in the numbers 1, 2, 3 and 4, each data block consists of 4 elements. The elements are sequentially arranged in a data block in a certain order.
  • the transmitting device acquires one or more data streams that are modulated and input.
  • the transmitting device separately interleaves the elements of the at least two of the data blocks to generate a new data block in each of the data streams, where the number of the new data blocks and the data blocks that are interleaved The number is the same.
  • the sending device interleaves the elements of at least two data blocks in the data stream in each data stream to generate a new data block, if there are N data blocks in the data stream, M data blocks are randomly selected for interleaving, where M ⁇ N.
  • M may depend on the transmission. A compromise between performance and complexity.
  • the number of new data blocks generated is the same as the number of data blocks that are interleaved. For example: Interleaving the elements of 4 data blocks, the number of new data blocks generated is also 4, and the number of elements in each data block is unchanged.
  • the sending device first determines, in each data stream, whether the number of data blocks of the data stream is even or odd, and performs the following steps according to the determined result:
  • the data blocks in the data stream are paired pairwise, and the elements of the paired data blocks are interleaved to generate two new data blocks.
  • two data blocks can be arbitrarily selected as a pair, which is not limited herein.
  • the data stream includes N DB data blocks.
  • the sending device can put the first and Nth DB / 2 + 1 data blocks together for element interleaving, and put the 2nd and N DB / 2 + 2 data blocks together for element interleaving...
  • the N DB /2 data blocks and the N DB DB data blocks are put together for element interleaving. For example, see the schematic diagram of the interleaving of an element shown in Figure 15.
  • a data stream consists of four data blocks (as shown in DB1, DB2, DB3, and DB4), and now the elements of each data block.
  • the data stream includes an odd number of the data blocks, after deleting any one of the data blocks in the data stream, pair the remaining data blocks pairwise, and pair the data blocks
  • the elements are interleaved to generate two new data blocks.
  • one data block can be arbitrarily divided, and two data blocks can be arbitrarily selected as a pair, which is not limited herein.
  • the data stream includes N DB data blocks, and the sending device can put the first and Nth DB / 2 + 1 data blocks together for element interleaving, and the second and N DB / 2 + 2 The data blocks are put together for element interleaving...
  • the Nth DB / 2-l data block and the Nth DB data block are put together for element interleaving.
  • FIG. 16 For example, see the schematic diagram of the interleaving method of another element shown in Figure 16. Assume that a data stream consists of five data blocks (as shown in DB1, DB2, DB3, DB4, and DB5). The elements of the block indicate the serial number, DB1 and DB4 are interleaved, DB2 and DB5 are interleaved, and DB3 does not process. It can be seen that the number of elements of the newly obtained new data block has not changed, but the element changes.
  • the above embodiment is a relatively simple interleaving method.
  • the disadvantage is that the interleaving depth is insufficient, and in the case of an odd number of data blocks, at least one element of the data block cannot participate in the interleaving.
  • the sending device extracts, in each data stream, a first element sequence in the data stream, where the first element sequence includes the extracted elements of the data block, and changes the first element sequence.
  • the order of the elements is arranged to form a second element sequence; new data blocks are sequentially acquired from the second element sequence in a preset order, and the number of new data blocks is the same as the number of extracted data blocks.
  • the specific implementation process please refer to the schematic diagram of the interleaving manner of another element shown in FIG. 17, where the first element sequence is composed of elements of a plurality of data blocks, and idx in represents the sequence number of the elements in the first element sequence. , DB.
  • Ut represents the second element sequence, idx.
  • Ut represents the serial number output after interleaving, that is, the serial number of the element in the second element sequence, where the sending device first takes DB1, DB2, DB3, and DB4 4 Blocks of data constituting a first sequence of elements arranged in series DB in, and then change the order of the elements in the first sequence of elements DB in the second sequence of elements constituting the DB.
  • Ut for example, the position of the element 6 in the first element sequence DB in in the figure is changed to the second element sequence DB.
  • the position of the element 14 in ut is finally from the second element sequence DB in the order of DB1, DB2.DB3, and DB4.
  • Ut sequentially acquires new data blocks DB1, DB2, DB3, and DB4, and it can be seen that the number of elements of the newly obtained new data block has not changed, but the elements have changed.
  • the transmitting device may further divide the first element sequence into a plurality of groups in units of elements, that is, the first element sequence includes a plurality of groups arranged in series, each group includes at least one element;
  • the order of the groups in an element sequence constitutes a second element sequence; finally, new data blocks are sequentially acquired from the second element sequence in a preset order, and the number of new data blocks is the same as the number of extracted data blocks.
  • the specific implementation process can be analogized to the interleaving method shown in FIG. 17, except that the order of the change is a packet instead of an element. For example, see the schematic diagram of the packet interleaving method of one element shown in FIG. 18, five from left to right.
  • each data stream has 4 data blocks (each column represents 1 data block), the first data stream represents the data stream before the interleaving, and the second data stream represents the interleaving with one element as a group.
  • the data stream, the third data stream represents a data stream obtained by interleaving two elements, the fourth data stream represents a data stream obtained by interleaving three elements, and the fifth data stream is represented by four.
  • the element is a data stream obtained by interleaving the packets. It can be seen that the fewer elements included in the packet, the greater the interleaving depth, thereby changing the interleaving depth.
  • the transmitting device changes the order of the packets in the first element sequence, and the specific embodiment of the second element sequence may be: first converting the first element sequence into an element matrix; The element is subjected to an offset process; finally, the matrix of the element after the offset processing is converted into the second element sequence.
  • the transmitting device also needs to acquire the number N layer of the signal space layer , the number N e of elements in the data block, and the number N ge of elements in the packet.
  • the sending device can be based on the formula
  • ( i in , j in ) is the sequence number of the element in the element matrix.
  • the offset processing is performed on the packets in the element matrix, where j.
  • Ffset is the offset of the offset processing.
  • Sending device can be based on formula
  • the above embodiment is a detailed, specific and comprehensive interleaving method, which has the advantages of high interleaving depth and wide application object.
  • the sending device respectively maps each data stream carrying the new data block to a corresponding signal space layer and sends the data stream to the receiving device through the antenna port.
  • the signal space layer is a combination of resources of time, frequency, and space.
  • the sending device respectively maps each data stream carrying the new data block to a corresponding time, frequency, and space resource combination. Since the elements in the new data block are interleaved, it is equivalent to the original data block. The elements are scattered mapped onto multiple time-frequency resources, as shown in the schematic diagram of a new data stream of Figure 19, thereby obtaining gains over time diversity, frequency diversity, and spatial diversity.
  • the receiving device performs deinterleaving processing on the elements of the plurality of new data blocks in each of the data streams.
  • the sending device since the sending device has interleaved the data blocks in the original data stream, the obtained new data stream cannot be directly identified, so the receiving device separately solves the elements of the multiple new data blocks in each data stream. Interleaving processing to restore the original data stream.
  • the receiving device is respectively in each data stream.
  • the two new data blocks generated in pairs are deinterleaved.
  • the de-interleaving of the receiving device is an inverse process of the transmitting device performing interleaving.
  • the first element sequence includes the extracted elements of the data block; changing the elements in the first element sequence Arranging the order to form a second element sequence; sequentially acquiring new data blocks from the second element sequence in a preset order, and obtaining the same number of new data blocks as the number of extracted data blocks.
  • the new data blocks are serially arranged in a preset order to form a second element sequence J
  • the order of the elements in the order is restored to the order of the elements in the first element sequence;
  • the data blocks are sequentially acquired from the first element sequence in a preset order, and the number of obtained data blocks is the same as the number of new data blocks.
  • the transmitting device may classify the elements in the data block into a plurality of groups, and directly change the order of the grouping when changing the order of the elements in the first element sequence, and therefore, the receiving device is in the element in the second element sequence.
  • the order of the order is restored to the order of the elements in the first element sequence, it is restored by grouping.
  • the elements are interleaved to generate a new data block, wherein the data stream includes a plurality of data blocks, the data block includes a plurality of elements, and the number of new data blocks is the same as the number of data blocks to be interleaved, and respectively carries new data.
  • Each data stream of the block is mapped to the corresponding signal space layer and sent to the receiving device through the antenna port.
  • FIG. 7 is a schematic structural diagram of a transmitting device for interleaving transmission according to an embodiment of the present invention.
  • the transmitting device in the embodiment of the present invention may include at least a data stream obtaining module 610, a data block interleaving module 620, and a data stream mapping module 630, where:
  • the data stream obtaining module 610 is configured to obtain the modulated at least one data stream, where the data stream includes a plurality of data blocks, where the data block includes a plurality of elements.
  • the embodiment of the present invention takes the downlink transmission of the LTE system as an example, so the data stream is a data signal carrying a message that the transmitting device downlink transmits to the receiving device, and the sending device may be a base station, and the receiving device may be a user. device. It should be noted that the embodiments of the present invention are directed to the downlink transmission of the LTE system, but are not limited thereto. The application in the uplink transmission of the LTE system or other communication systems still falls within the protection scope of the present invention.
  • the data stream includes a plurality of data blocks, and the data block includes a plurality of elements (Element).
  • Element refer to a schematic diagram of a data flow shown in FIG. 14, where the data flow includes 4 data.
  • Blocks (as shown in Sequences 1, 2, 3, and 4), each block consists of 4 elements.
  • the elements are sequentially arranged in a data block in a certain order.
  • the data stream obtaining module 610 acquires one or more data streams that are modulated and input.
  • a data block interleaving module 620 configured to interleave the elements of at least two of the data blocks into new data blocks in each of the data streams, where the number of the new data blocks is the same as the interleaving The number of data blocks is the same.
  • the data block interleaving module 620 respectively interleaves the elements of at least two data blocks in the data stream to generate a new data block in each data stream, if there are N data blocks in the data stream. Then, M data blocks can be randomly selected for interleaving, where M ⁇ N. It should be pointed out that, in general, the greater the interleaving depth, the better the transmission performance, but the computational complexity is increased, and more data needs to be calculated and processed for positional shifting. Therefore, the selection of M may depend on the transmission. A compromise between performance and complexity.
  • the number of new data blocks generated is the same as the number of data blocks that are interleaved. For example: Interleaving the elements of 4 data blocks, then the number of new data blocks generated is also 4, and the number of elements of each data block is unchanged.
  • the data block interleaving module 620 first determines, in each data stream, whether the number of data blocks of the data stream is even or odd, and performs the following steps according to the determined result:
  • the data blocks in the data stream are paired pairwise, and the elements of the paired data blocks are interleaved to generate two new data blocks.
  • two data blocks can be arbitrarily selected as a pair, which is not limited herein.
  • the data stream includes N DB data blocks, and the data block interleaving module 620 can put the first and Nth DB / 2 + data blocks together for element interleaving, and the second and N DB / 2+2 data blocks are put together for element interleaving...
  • the Nth DB /2 data blocks and the Nth DB data blocks are put together for element interleaving.
  • a data stream consists of four data blocks (as shown in DB1, DB2, DB3, and DB4), and now the elements of each data block.
  • the data stream includes an odd number of the data blocks, after deleting any one of the data blocks in the data stream, pair the remaining data blocks pairwise, and pair the data blocks
  • the elements are interleaved to generate two new data blocks. It should be pointed out that one data block can be arbitrarily removed, and The two data blocks are arbitrarily selected as a pair, which is not limited herein.
  • the data stream includes N DB data blocks, and the data block interleaving module 620 can put the first and Nth DB / 2 + data blocks together for element interleaving, and the second and N DB / 2+2 data blocks are put together for element interleaving...
  • N DB / 2- l data blocks and N DB data blocks are put together for element interleaving.
  • a data stream includes 5 data blocks (as shown in DB1, DB2, DB3, DB4, and DB5), and now The elements of the data block indicate the serial number, DB1 and DB4 are interleaved, DB2 and DB5 are interleaved, and DB3 does not process. It can be seen that the number of elements of the newly obtained new data block does not change, but the element changes.
  • the above embodiment is a relatively simple interleaving method of the data block interleaving module 620.
  • the disadvantage is that the interleaving depth is insufficient, and in the case of an odd number of data blocks, at least one element of the data block cannot be interleaved.
  • the data block interleaving module 620 shown in FIG. 8 may further include a first element sequence constituting unit 621, a second element sequence constituting unit 622, and a new data block obtaining unit 623, where:
  • the first element sequence constituting unit 621 is configured to extract at least two of the data in the data stream, and the first element sequence includes elements of the extracted data block.
  • DB in represents the first element sequence, which is composed of elements of multiple data blocks, (1 represents the sequence number of the element in the first element sequence,
  • the one-element sequence constructing unit 621 serially arranges the four data blocks of DB1, DB2, DB3, and DB4 to form the first element sequence DB in .
  • the first element sequence constituting unit 621 may further divide the first element sequence into a plurality of groups in units of elements, that is, the first element sequence includes a plurality of groups arranged in series, and each group includes at least one element. .
  • the specific implementation process can be analogized to the arrangement in Figure 17, except that it is arranged in groups.
  • the second element sequence constituting unit 622 is configured to change an arrangement order of the elements in the first element sequence to form a second element sequence.
  • the second element sequence constituting unit 622 changes the order of the elements in the first element sequence to form a second element sequence.
  • Ut represents the second element sequence, idx.
  • Ut represents the serial number output after interleaving, that is, the second The sequence number of the elements in the sequence of elements, wherein the second element sequence constituting unit 622 changes the arrangement order of the elements in the first element sequence DB in to constitute the second element sequence DB.
  • Ut the position of the element 6 in the first element sequence 08 ⁇ in the figure is changed to the second element sequence DB.
  • the position of element 14 in ut is changed to the second element sequence DB.
  • the second element sequence constructing unit 622 changes the order of the groups in the first element sequence to form a second element sequence.
  • the concrete implementation process can be analogized to the interleaving method shown in Figure 17, except that the order of change is grouping rather than elements.
  • the second element sequence constituting unit shown in FIG. 9 may include a first conversion subunit 622a, an offset processing subunit 622b, and a second conversion subunit 622c, where: the first conversion subunit 622a, configured to convert the first element sequence into an element matrix.
  • the first conversion subunit 622a is according to a formula
  • ( i in , jin ) is the sequence number of the element in the element matrix.
  • the offset processing sub-unit 622b is configured to perform offset processing on the elements in the element matrix. Specifically, the offset processing sub-unit 622b is based on a formula
  • the offset processing is performed on the packets in the element matrix, where j. Ffset is the offset of the offset processing.
  • the second conversion sub-unit 622c is configured to convert the matrix of the element after the offset processing into the second element sequence.
  • the second conversion subunit 622c is according to a formula
  • the new data block obtaining unit 623 is configured to sequentially acquire new data blocks from the second element sequence in the preset order, where the number of the new data blocks is the same as the number of the extracted data blocks.
  • the new data block obtaining unit 623 sequentially acquires new data blocks from the second element sequence in a preset order, and the number of new data blocks is the same as the number of extracted data blocks.
  • the specific implementation process please refer to the schematic diagram of the interleaving manner of another element shown in FIG. 17, the first element sequence in the figure.
  • the position of the element 6 in 08 ⁇ is changed to the second element sequence DB.
  • the position of element 14 in ut and finally from the second element sequence DB in the order of DB1, DB2, DB3, and DB4.
  • the new data blocks DB1', DB2', DB3', and DB4' are sequentially acquired in ut , and it can be seen that the number of elements of the newly obtained new data block does not change, but the element changes.
  • the elements in the first element sequence have been classified into multiple groups, refer to the schematic diagram of the packet interleaving method of one element shown in FIG. 18, and there are 5 data streams from left to right, each data.
  • the stream has four data blocks (each column represents one data block), the first data stream represents the data stream before interleaving, and the second data stream represents the data stream obtained by interleaving one element into packets, and the third data stream
  • the data stream represents a data stream obtained by interleaving two elements as a packet, the fourth data stream represents a data stream obtained by interleaving three elements as a packet, and the fifth data stream represents interleaving by grouping four elements.
  • the data stream the smaller the elements included in the visible packet, the greater the interleaving depth, which can change the interleaving depth.
  • the data stream mapping module 630 is configured to map each data stream carrying the new data block to a corresponding signal space layer and send the data stream to the receiving device through the antenna port.
  • the signal space layer is a combination of resources of time, frequency, and space.
  • the data stream mapping module 630 respectively maps each data stream carrying the new data block to a corresponding time, frequency, and space resource combination, and the elements in the new data block are interleaved, which is equivalent to the original
  • the elements of the data block are distributedly mapped onto a plurality of time-frequency resources, as shown in the schematic diagram of a new data stream of FIG. 19, thereby obtaining gains in time diversity, frequency diversity, and spatial diversity.
  • FIG. 10 is a schematic structural diagram of a receiving device for interleaving transmission according to an embodiment of the present invention.
  • the transmitting device in the embodiment of the present invention may at least include a data stream obtaining module 710 and a data block deinterleaving module 720, where:
  • the data stream obtaining module 710 is configured to acquire at least one data stream that is sent by the sending device by using an antenna port, where the data stream includes a plurality of new data blocks, where the new data block includes multiple elements, where the new data block It is generated by the transmitting device interleaving elements of at least two data blocks in the data stream, the number of the new data blocks being the same as the number of the data blocks being interleaved.
  • the sending device since the sending device has interleaved the data blocks in the original data stream, the new one is obtained.
  • the data stream cannot be directly identified. Therefore, the receiving device will deinterleave the elements of the plurality of new data blocks in each data stream to restore the original data stream.
  • the data block deinterleaving module 720 is respectively in each In the data stream, two new data blocks generated in pairs are deinterleaved.
  • the receiving device deinterleaving is an inverse process performed by the transmitting device to perform interleaving.
  • the first element sequence includes elements of the extracted data block; changing elements in the first element sequence
  • the arrangement order forms a second element sequence; the new data block is sequentially acquired from the second element sequence in a preset order, and the number of obtained new data blocks is the same as the number of extracted data blocks.
  • the data block deinterleaving module 720 respectively serially arranges the new data blocks in a predetermined order in each data stream to form a second element sequence, where the second element sequence includes elements of the new data block; The order of the elements in the second element sequence is restored to the order of the elements in the first element sequence; the data blocks are sequentially acquired from the first element sequence in a preset order, and the number of acquired data blocks and the new data block are obtained. The number is the same. It should be noted that the deblocking process of the data block deinterleaving module 720 is always the reverse process regardless of which way the transmitting device interleaves the data blocks.
  • the transmitting device may classify the elements in the data block into a plurality of packets, and directly change the order of the packets when changing the order of the elements in the first element sequence, and therefore, the data block deinterleaving module 720 is in the second element.
  • the order of the elements in the sequence is restored to the order of the elements in the first element sequence, it is restored by grouping.
  • FIG. 11 is a schematic structural diagram of a system for interleaving transmission according to an embodiment of the present invention.
  • the system for interleaving transmission in the embodiment of the present invention may at least include a transmitting device 810 and a receiving device 820, where:
  • the sending device 810 is configured to acquire the modulated at least one data stream, where the data stream includes a plurality of data blocks, where the data block includes multiple elements, and at least two of the data streams respectively
  • the elements of the data block are interleaved to generate a new data block, the number of the new data blocks being the same as the number of the data blocks being interleaved; and each data stream carrying the new data block is mapped to a corresponding Signal space layer and sent to the receiving device 820 through an antenna port;
  • the receiving device 820 is configured to acquire at least one data stream that is sent by the sending device 810 through an antenna port, where the data stream includes a plurality of new data blocks, where the new data block includes multiple elements, where the new
  • the data block is generated by the transmitting device interleaving elements of at least two data blocks in the data stream, the number of the new data blocks being the same as the number of the data blocks being interleaved;
  • the elements of the plurality of new data blocks in the data stream are subjecte
  • FIG. 12 is a schematic structural diagram of another apparatus for transmitting interleaved transmission according to an embodiment of the present invention.
  • the transmitting apparatus may include: at least one processor 901, such as a CPU, at least one signal transceiver 903, for example Physical antenna module, memory 904, at least one communication bus 902.
  • the communication bus 902 is used to implement connection communication between these components.
  • the memory 904 may be a high speed RAM memory or a non-volatile memory such as at least one disk memory.
  • the memory 904 may also be at least one storage device located away from the foregoing processor 901.
  • a set of program codes is stored in the memory 904, and the processor 901 is configured to call program code stored in the memory for performing the following operations:
  • the data stream comprising a plurality of data blocks, the data block comprising a plurality of elements
  • Each data stream carrying the new data block is mapped to a corresponding signal space layer and transmitted to the receiving device through the antenna port.
  • the specific operation of the processor 901 interleaving the elements of the at least two of the data blocks to generate a new data block is:
  • the data stream includes an even number of the data blocks, pair the data blocks in the data stream pairwise, and interleave the elements of the paired data blocks to generate two new data blocks;
  • the specific operation of the processor 901 to interleave the elements of the at least two of the data blocks to generate a new data block may also be: Extracting at least two of the data blocks in the data stream, and serially arranging the extracted data blocks in a predetermined order to form a first element sequence, where the first element sequence includes the extracted The element of the data block;
  • the first sequence of elements may further include a plurality of packets arranged in series, the packets including at least one of the elements.
  • the processor 901 changes the order of the elements in the first element sequence, and the specific operations of the second element sequence are:
  • the order of arrangement of the packets in the first element sequence is changed to form the second element sequence. Further, the processor 901 changes the order of the elements in the first element sequence, and the specific operations of the second element sequence are:
  • the matrix of elements after the offset processing is converted into the second sequence of elements.
  • the processor 901 serially arranges the extracted data blocks in a preset order, and after acquiring the first element sequence, acquiring the number N layer of the signal space layer and the elements in the data block.
  • the processor 901 converts the first element sequence into an element matrix, which is specifically: according to a formula
  • the idx in is a sequence number of an element in the first element sequence, and the (i in , j in ) is a sequence number of an element in the element matrix.
  • the processor 901 converts the matrix of the element after the offset processing into the sequence of the second element, specifically:
  • the new data block includes a plurality of elements, wherein the new data block is data sent by the sending device
  • the elements of at least two data blocks in the stream are interleaved, and the number of the new data blocks is the same as the number of the data blocks being interleaved;
  • the new data block is generated by the sending device by: extracting data to form a first element sequence, the first element sequence includes the extracted elements of the data block; Arranging the order of the elements in the first element sequence to form a second element sequence; sequentially acquiring the new data block from the second element sequence in the preset order, and acquiring the new data block
  • the number is the same as the number of extracted data blocks.
  • the embodiment of the present invention generates a new data block by interleaving elements of at least two data blocks in each acquired data stream, where the data stream includes multiple data blocks, and the data block includes multiple elements, and the new data block
  • the number of data blocks is the same as the number of data blocks to be interleaved, and each data stream carrying the new data block is mapped to the corresponding signal space layer and sent to the receiving device through the antenna port, thereby realizing the data stream interleaving transmission. It can improve the time diversity of frequency transmission, frequency diversity and gain of spatial diversity, and improve the performance of wireless transmission.
  • first and second are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated.
  • first is defined.
  • no. Second the features may include at least one of the features, either explicitly or implicitly.
  • the meaning of "plurality” is at least two, such as two, three, etc., unless specifically defined otherwise.
  • a "computer-readable medium” can be any apparatus that can contain, store, communicate, propagate, or transport a program for use in an instruction execution system, apparatus, or device, or in conjunction with such an instruction execution system, apparatus, or device.
  • a more specific example (non-exhaustive list) of computer readable media includes the following: electrical connections (electronic devices) having one or more wires, portable computer disk cartridges (magnetic devices), random access memory (RAM) , read only memory (ROM), erasable editable read only memory (EPROM or flash memory), fiber optic device, and portable compact disk read only memory (CDROM).
  • the computer readable medium may even be Printing the paper or other suitable medium of the program, as the program can be obtained electronically, for example by optical scanning of paper or other medium, followed by editing, interpretation or, if necessary, processing in other suitable manner, and then Store it in computer memory.
  • portions of the invention may be implemented in hardware, software, firmware or a combination thereof.
  • multiple steps or methods may be implemented in software or firmware stored in a memory and executed by a suitable instruction execution system.
  • a suitable instruction execution system For example, if implemented in hardware, as in another embodiment, it can be implemented with any one or combination of the following techniques well known in the art: having logic gates for implementing logic functions on data signals Discrete logic circuit, ASIC with suitable combination logic gate, Programmable Gate Array (PGA), Field Programmable Gate Array (FPGA) Wait.
  • each functional unit in each embodiment of the present invention may be integrated into one processing module, or each unit may exist physically separately, or two or more units may be integrated into one module.
  • the above integrated modules can be implemented in the form of hardware or in the form of software functional modules.
  • the integrated modules, if implemented in the form of software functional modules and sold or used as stand-alone products, may also be stored in a computer readable storage medium.
  • the above mentioned storage medium may be a read only memory, a magnetic disk or an optical disk or the like.

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Abstract

本发明实施例公开了一种交织传输的方法,获取调制后的至少一个数据流,所述数据流包括多个数据块,所述数据块包括多个元素;分别在各所述数据流中,将至少两个所述数据块的所述元素进行交织生成新数据块,所述新数据块的个数与进行交织的所述数据块的个数相同;分别将携带有所述新数据块的各数据流映射到对应的信号空间层并通过天线端口发送到接收设备。相应地,本发明实施例还公开了一种交织传输的发送设备、接收设备以及系统。采用本发明,可以提升无线传输的时间分集、频率分集以及空间分集的增益,提高无线传输的性能。

Description

一种交织传输的方法、 发送设备、 接收设备以及系统 技术领域
本发明涉及通信技术领域, 尤其涉及一种交织传输的方法、 发送设备、接 收设备以及系统。 背景技术
第三代合作伙伴计划 (the 3rd Generation Partnership Project, 3GPP ) 中的 长期演进(Long Term Evolution, LTE ) 系统是主流的下一代无线蜂窝通信标 准。 其中, LTE系统的空口速率是指空中接口的吞吐率, 在固定的带宽和固定 的信道条件下存在理论的空口速率, 为了达到理论的空口速率, LTE系统釆用 了时间分集、 频率分集以及空间分集的分集技术。 例如: 时间分集是通过多个 时隙的信道传输承载相同信息的多个副本,所述多个副本属于经信道编码后的 信号。
一般地, 同一信号的多个副本经历的信道越不相同, 分集效果越好, 接收 端所获分集增益越高, LTE系统传输的性能越好, 例如: 假设某个信号只通过 一个信道传输, 而这个信道的传输质量很差, 那么接收端可能无法接收该信号 的全部数据, 若该信号的多个副本分散在多个信道, 那么接收端可以从传输质 量较好的信道获得该信号的绝大部分数据, 因此传输的性能后者更好。 但是, 现有 LTE系统的下行通信, 在对用于传输的多个码字 (Code word, CW )进 行加扰和调制以形成多个数据流(Data Stream , DS )后, 分别将形成的多个 数据流直接地映射到不同的时频空资源 (时间、 频率和空间的一个资源组合) 对应的信道上,因此时间分集、频率分集以及空间分集的增益并未被充分提升。 可类比地, 在 LTE 系统的上行或其它通信系统中, 时间分集、 频率分集以及 空间分集的增益也未被充分提升。
发明内容
本发明实施例提供了一种交织传输的方法,可以提升无线传输的时间分集、 频率分集以及空间分集的增益, 提高无线传输的性能。 本发明实施例第一方面提供了一种交织传输的方法, 包括:
获取调制后的至少一个数据流, 所述数据流包括多个数据块, 所述数据块 包括多个元素;
分别在各所述数据流中,将至少两个所述数据块的所述元素进行交织生成 新数据块, 所述新数据块的个数与进行交织的所述数据块的个数相同;
分别将携带有所述新数据块的各数据流映射到对应的信号空间层并通过 天线端口发送到接收设备。
在第一方面的第一种可能实现方式中,所述将至少两个所述数据块的所述 元素进行交织生成新数据块, 包括:
若所述数据流包括偶数个所述数据块,则将所述数据流中的所述数据块两 两配对, 并将配对的所述数据块的所述元素进行交织生成两个新数据块;
若所述数据流包括奇数个所述数据块,则在所述数据流中除开任意一个所 述数据块后,将剩下的所述数据块两两配对, 并将配对的所述数据块的所述元 素进行交织生成两个新数据块。
结合第一方面的第一种可能实现方式,在第二种可能实现方式中, 所述将 至少两个所述数据块的所述元素进行交织生成新数据块, 包括:
提取所述数据流中的至少两个所述数据块,并将提取的所述数据块按预设 的顺序进行串行排列,构成第一元素序列, 所述第一元素序列包括提取的所述 数据块的元素;
改变所述第一元素序列中的元素的排列顺序, 构成第二元素序列; 按所述预设的顺序从所述第二元素序列中依次获取新数据块,所述新数据 块的个数与提取的所述数据块的个数相同。
结合第一方面以及第一方面的第二种可能实现方式,在第三种可能实现方 式中, 所述第一元素序列包括串行排列的多个分组, 所述分组包括至少一个所 述元素;
所述改变所述第一元素序列中的元素的排列顺序,构成第二元素序列, 包 括:
改变所述第一元素序列中的所述分组的排列顺序,构成所述第二元素序列。 结合第一方面以及第一方面的第二种可能实现方式,在第四种可能实现方 式中, 所述改变所述第一元素序列中的元素的排列顺序, 构成第二元素序列, 包括:
将所述第一元素序列转换为元素矩阵;
对所述元素矩阵中的元素进行偏移处理;
将偏移处理后的所述元素矩阵转换为所述第二元素序列。
结合第一方面以及第一方面的第四种可能实现方式,在第五种可能实现方 式中, 所述第一元素序列包括串行排列的多个分组, 所述分组包括至少一个所 述元素;
所述对所述元素矩阵中的元素进行偏移处理, 包括:
对所述元素矩阵中的所述分组进行偏移处理。
结合第一方面以及第一方面的第五种可能实现方式,在第六种可能实现方 列之后, 还包括: 获取所述信号空间层的个数 Nlayer、 所述数据块中的元素的 个数 Ne以及所述分组中的元素的个数 Nge;
所述将所述第一元素序列转换为元素矩阵, 包括: 根据公式
; _ { Ne, mod(idxin, Ne) = 0 R ; _ dxin
、mod(idxin, Ne), otherwise V Ne /
将所述第一元素序列转换为元素矩阵, 其中所述 1(1 是所述第一元素序列中 的元素的序号, 所述(iin, jin )是所述元素矩阵中的元素的序号;
所述对所述元素矩阵中的所述分组进行偏移处理, 包括: 根据公式
Figure imgf000005_0001
对所述元素矩阵中的所述分组进行偏移处理, 其中所述 j。ffset是所述偏移处理 的偏移量;
所述将偏移处理后的所述元素矩阵转换为所述第二元素序列, 包括: 根据 公式
ϊίη + (Nlayer ― ' m〇d(j in τ Joffset, Nlayer ) = ◦
idXout =
iin + (mod(jin + joffSet , Nlayer ) - 1), otherwise
将偏移处理后的所述元素矩阵转换为所述第二元素序列, 其中所述 idx。ut 是所述第二元素序列中的元素的序号。 本发明实施例第二方面提供了一种交织传输的方法, 包括: 获取发送设备通过天线端口发送来的至少一个数据流,所述数据流包括多 个新数据块, 所述新数据块包括多个元素, 其中, 所述新数据块是由所述发送 设备将数据流中的至少两个数据块的元素进行交织生成的,所述新数据块的个 数与进行交织的所述数据块的个数相同;
分别对各所述数据流中的多个所述新数据块的元素进行解交织处理。
在第二方面的第一种可能实现方式中,所述新数据块是由所述发送设备将 数据流中的数据块两两配对,并将配对的所述数据块的元素进行交织后成对生 成的;
所述分别对各所述数据流中的多个所述新数据块的元素进行解交织处理, 包括:
分别在各所述数据流中,对成对生成的两个所述新数据块进行解交织处理。 结合第二方面的可能实现方式,在第二种可能实现方式中, 所述新数据块 是由所述发送设备通过以下方法生成的: 提取数据流中的至少两个数据块, 并 将提取的所述数据块按预设的顺序进行串行排列,构成第一元素序列, 所述第 一元素序列包括提取的所述数据块的元素;改变所述第一元素序列中的元素的 排列顺序,构成第二元素序列; 按所述预设的顺序从所述第二元素序列中依次 获取所述新数据块,获取的所述新数据块的个数与提取的所述数据块的个数相 同;
所述分别对各所述数据流中的多个所述新数据块的元素进行解交织处理, 包括: 构成所述第二元素序列, 所述第二元素序列包括所述新数据块的元素; 将所述 第二元素序列中的元素的排列顺序还原为所述第一元素序列中的元素的排列 顺序; 按所述预设的顺序从所述第一元素序列中依次获取数据块, 获取的所述 数据块的个数与所述新数据块的个数相同。 本发明实施例第三方面提供了一种交织传输的发送设备, 包括:
数据流获取模块, 用于获取调制后的至少一个数据流, 所述数据流包括多 个数据块, 所述数据块包括多个元素;
数据块交织模块, 用于分别在各所述数据流中,将至少两个所述数据块的 所述元素进行交织生成新数据块,所述新数据块的个数与进行交织的所述数据 块的个数相同;
数据流映射模块,用于分别将携带有所述新数据块的各数据流映射到对应 的信号空间层并通过天线端口发送到接收设备。
在第三方面的第一种可能实现方式中, 所述数据块交织模块, 具体用于: 若所述数据流包括偶数个所述数据块,则将所述数据流中的所述数据块两 两配对, 并将配对的所述数据块的所述元素进行交织生成两个新数据块;
若所述数据流包括奇数个所述数据块,则在所述数据流中除开任意一个所 述数据块后,将剩下的所述数据块两两配对, 并将配对的所述数据块的所述元 素进行交织生成两个新数据块。
结合第三方面的第一种可能实现方式,在第二种可能实现方式中, 所述数 据块交织模块, 包括:
第一元素序列构成单元, 用于提取所述数据流中的至少两个所述数据块, 第一元素序列包括提取的所述数据块的元素;
第二元素序列构成单元,用于改变所述第一元素序列中的元素的排列顺序, 构成第二元素序列;
新数据块获取单元,用于按所述预设的顺序从所述第二元素序列中依次获 取新数据块, 所述新数据块的个数与提取的所述数据块的个数相同。
结合第三方面以及第三方面的第二种可能实现方式,在第三种可能实现方 式中, 所述第一元素序列包括串行排列的多个分组, 所述分组包括至少一个所 述元素;
第二元素序列构成单元,具体用于改变所述第一元素序列中的所述分组的 排列顺序, 构成所述第二元素序列。
结合第三方面以及第三方面的第二种可能实现方式,在第四种可能实现方 式中, 所述第二元素序列构成单元, 包括:
第一转换子单元, 用于将所述第一元素序列转换为元素矩阵;
偏移处理子单元, 用于对所述元素矩阵中的元素进行偏移处理;
第二转换子单元,用于将偏移处理后的所述元素矩阵转换为所述第二元素 序列。 结合第三方面以及第三方面的第四种可能实现方式,在第五种可能实现方 式中, 所述第一元素序列包括串行排列的多个分组, 所述分组包括至少一个所 述元素; 结合第三方面以及第三方面的第五种可能实现方式,在第六种可能实现方 式中, 所述数据块交织模块, 还用于获取所述信号空间层的个数 Nlayer、 所述 数据块中的元素的个数 Ne以及所述分组中的元素的个数 Nge;
所述第一转换子单元具体用于根据公式
i = ( Ne, mod(idxin, Ne) = 0 且 = ceil idxin\ m _ lmod(idxin, Ne), otherwise Jm
Figure imgf000008_0001
将所述第一元素序列转换为元素矩阵, 其中所述 1(1 ^是所述第一元素序列中 的元素的序号, 所述(iin, jin )是所述元素矩阵中的元素的序号;
所述偏移处理子单元具体用于根据公式
_ Ί ( lin A ,
Joffset ― ce u I ~ I― 丄
\1 ge /
对所述元素矩阵中的所述分组进行偏移处理, 其中所述 j。ffset是所述偏移处理 的偏移量;
所述第二转换子单元具体用于根据公式
. A f iin + (Nlayer ― > mod(j in τ Joffset, Nlayer ) = ◦ lQX〇ut 一 I r 、
Uin + (mod jin + joffSet ' Nlayer ) - 1), otherwise
将偏移处理后的所述元素矩阵转换为所述第二元素序列, 其中所述 idx。ut 是所述第二元素序列中的元素的序号。 本发明实施例第四方面提供了一种交织传输的接收设备, 包括:
数据流获取模块,用于获取发送设备通过天线端口发送来的至少一个数据 流, 所述数据流包括多个新数据块, 所述新数据块包括多个元素, 其中, 所述 新数据块是由所述发送设备将数据流中的至少两个数据块的元素进行交织生 成的, 所述新数据块的个数与进行交织的所述数据块的个数相同;
数据块解交织模块,用于分别对各所述数据流中的多个所述新数据块的元 素进行解交织处理。
在第四方面的第一种可能实现方式中,所述新数据块是由所述发送设备将 数据流中的数据块两两配对,并将配对的所述数据块的元素进行交织后成对生 成的;
所述数据块解交织模块, 具体用于分别在各所述数据流中,对成对生成的 两个所述新数据块进行解交织处理。
结合第四方面的可能实现方式,在第二种可能实现方式中, 所述新数据块 是由所述发送设备通过以下方法生成的: 提取数据流中的至少两个数据块, 并 将提取的所述数据块按预设的顺序进行串行排列,构成第一元素序列, 所述第 一元素序列包括提取的所述数据块的元素;改变所述第一元素序列中的元素的 排列顺序,构成第二元素序列; 按所述预设的顺序从所述第二元素序列中依次 获取所述新数据块,获取的所述新数据块的个数与提取的所述数据块的个数相 同;
所述数据块解交织模块, 具体用于分别在各所述数据流中,将所述新数据 块按所述预设的顺序进行串行排列,构成所述第二元素序列, 所述第二元素序 列包括所述新数据块的元素;将所述第二元素序列中的元素的排列顺序还原为 所述第一元素序列中的元素的排列顺序;按所述预设的顺序从所述第一元素序 列中依次获取数据块, 获取的所述数据块的个数与所述新数据块的个数相同。 本发明实施例第五方面提供了一种交织传输的系统,包括第三方面提供的 发送设备和第四方面提供的接收设备, 其中:
所述发送设备用于获取调制后的至少一个数据流,所述数据流包括多个数 据块, 所述数据块包括多个元素; 分别在各所述数据流中, 将至少两个所述数 据块的所述元素进行交织生成新数据块,所述新数据块的个数与进行交织的所 述数据块的个数相同;分别将携带有所述新数据块的各数据流映射到对应的信 号空间层并通过天线端口发送到所述接收设备;
所述接收设备用于获取所述发送设备通过天线端口发送来的至少一个数 据流, 所述数据流包括多个新数据块, 所述新数据块包括多个元素, 其中, 所 述新数据块是由所述发送设备将数据流中的至少两个数据块的元素进行交织 生成的, 所述新数据块的个数与进行交织的所述数据块的个数相同; 分别对各 所述数据流中的多个所述新数据块的元素进行解交织处理。 本发明实施例第六方面提供了一种计算机存储介质,所述计算机存储介质 存储有程序,该程序执行时包括第一方面提供的一种交织传输的方法的部分或 全部步骤。 本发明实施例第七方面提供了一种计算机存储介质,所述计算机存储介质 存储有程序,该程序执行时包括第二方面提供的一种交织传输的方法的部分或 全部步骤。 本发明实施例第八方面提供了一种交织传输的发送设备,包括信号收发器、 存储器以及处理器, 其中, 存储器中存储一组程序, 且处理器用于调用存储器 中存储的程序, 用于执行以下操作:
获取调制后的至少一个数据流, 所述数据流包括多个数据块, 所述数据块 包括多个元素;
分别在各所述数据流中,将至少两个所述数据块的所述元素进行交织生成 新数据块, 所述新数据块的个数与进行交织的所述数据块的个数相同;
分别将携带有所述新数据块的各数据流映射到对应的信号空间层并通过 天线端口发送到接收设备。 本发明实施例第九方面提供了一种交织传输的接收设备,包括信号收发器、 存储器以及处理器, 其中, 存储器中存储一组程序, 且处理器用于调用存储器 中存储的程序, 用于执行以下操作:
获取发送设备通过天线端口发送来的至少一个数据流,所述数据流包括多 个新数据块, 所述新数据块包括多个元素, 其中, 所述新数据块是由所述发送 设备将数据流中的至少两个数据块的元素进行交织生成的,所述新数据块的个 数与进行交织的所述数据块的个数相同;
分别对各所述数据流中的多个所述新数据块的元素进行解交织处理。 由上可见, 本发明实施例通过分别在获取的各数据流中,将至少两个数据 块的元素进行交织生成新数据块, 其中, 数据流包括多个数据块, 数据块包括 多个元素,新数据块的个数与进行交织的数据块的个数相同,再分别将携带有 新数据块的各数据流映射到对应的信号空间层并通过天线端口发送到接收设 备的方法, 实现了数据流交织传输, 可以提升无线传输的时间分集、 频率分集 以及空间分集的增益, 提高无线传输的性能。 附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案,下面将对实施 例或现有技术描述中所需要使用的附图作简单地介绍,显而易见地, 下面描述 中的附图仅仅是本发明的一些实施例,对于本领域普通技术人员来讲,在不付 出创造性劳动的前提下, 还可以根据这些附图获得其他的附图。
图 1是本发明实施例提供的一种交织传输的方法的应用示意图; 图 2是本发明实施例提供的一种交织传输的方法的流程示意图; 图 3是本发明另一实施例提供的一种交织传输的方法的流程示意图; 图 4是本发明另一实施例提供的另一种交织传输的方法的流程示意图; 图 5是本发明另一实施例提供的又一种交织传输的方法的流程示意图; 图 6是本发明又一实施例提供的一种交织传输的方法的流程示意图; 图 7是本发明实施例提供的一种交织传输的发送设备的结构示意图; 图 8是本发明实施例提供的一种数据块交织模块的结构示意图; 图 9是本发明实施例提供的一种第二元素序列构成单元的结构示意图; 图 10是本发明实施例提供的一种交织传输的接收设备的结构示意图; 图 11是本发明实施例提供的一种交织传输的系统的结构示意图; 图 12是本发明实施例提供的另一种交织传输的发送设备的结构示意图; 图 13是本发明实施例提供的另一种交织传输的接收设备的结构示意图; 图 14是本发明实施例提供的一种数据流的示意图;
图 15是本发明实施例提供的一种元素的交织方式的示意图;
图 16是本发明实施例提供的另一种元素的交织方式的示意图; 图 17是本发明实施例提供的又一种元素的交织方式的示意图; 图 18是本发明实施例提供的一种元素的分组交织方式的示意图; 图 19是本发明实施例提供的一种新数据流的示意图。 具体实施方式
下面将结合本发明实施例中的附图,对本发明实施例中的技术方案进行清 楚、 完整地描述, 显然, 所描述的实施例仅仅是本发明一部分实施例, 而不是 全部的实施例。基于本发明中的实施例, 本领域普通技术人员在没有作出创造 性劳动前提下所获得的所有其他实施例, 都属于本发明保护的范围。
应理解, 本发明实施例的技术方案可以应用于各种通信系统, 例如: 全球 移动通讯(Global System of Mobile communication, 简称为 "GSM" ) 系统、 码 分多址( Code Division Multiple Access, 简称为 "CDMA" ) 系统、 宽带码分多 址(Wideband Code Division Multiple Access, 简称为 "WCDMA" ) 系统、 通用 分组无线业务( General Packet Radio Service,简称为" GPRS" )、长期演进( Long Term Evolution,简称为" LTE" )系统、 LTE频分双工( Frequency Division Duplex, 简称为 "FDD" )系统、 LTE时分双工( Time Division Duplex, 简称为 "TDD" )、 通用移动通信系统 ( Universal Mobile Telecommunication System, 简称为 "UMTS" ) 或全球互联微波接入 ( Worldwide Interoperability for Microwave Access, 简称为 "WiMAX" )通信系统等。
在本发明实施例中,基站可以是 GSM或 CDMA中的基站( Base Transceiver Station,简称为 "BTS,,),也可以是 WCDMA中的基站( NodeB,简称为 "NB,,), 还可以是 LTE中的演进型基站 ( Evolutional Node B, 简称为 "eNB" ), 本发明 并不限定, 但为描述方便, 下述实施例将以 eNB为例进行说明。
在本发明实施例中, 用户设备(User Equipment, 简称为 "UE" )可称之 为终端( Terminal )、移动台( Mobile Station,简称为 "MS" )或移动终端( Mobile Terminal )等, 该用户设备可以经无线接入网 ( Radio Access Network, 简称为 "RAN" )与一个或多个核心网进行通信,例如,用户设备可以是移动电话(或 称为 "蜂窝" 电话)或具有移动终端的计算机等, 例如, 用户设备还可以是便 携式、 袖珍式、 手持式、 计算机内置的或者车载的移动装置, 它们与无线接入 网交换语音和 /或数据。
为便于理解, 请参阅图 1, 首先以 LTE系统的下行传输为例, 介绍一下本 发明实施例的应用环境,输入是并行的多个码字(Code Word,简称为 "CW" ), 每个码字包括多个码块(Code Block, 简称为 "CB" ), 每个码字在经过加扰和 调制后生成数据流(Data Stream, 简称为 "DS" ), 对应地, 码块在经过加扰 和调制后生成数据块(Data Block, 简称为 "DB" ), 本发明实施例可实现对数 据流中的数据库进行交织处理,并将处理后的数据流分别映射到对应的信号空 间层以通过天线端口发送到接收设备。 图 2是本发明实施例提供的一种交织传输的方法。如图所示本实施例中的 交织传输的流程可以包括:
S101 , 获取调制后的至少一个数据流, 所述数据流包括多个数据块, 所述 数据块包括多个元素。
由于本发明实施例以 LTE 系统的下行传输为例, 故所述数据流是携带有 发送设备下行传输给接收设备的消息的数据信号, 所述发送设备可以是基站, 所述接收设备可以是用户设备。 需要指出的是, 本发明实施例虽针对的是 LTE 系统的下行传输, 但并不局限于此, 在 LTE 系统的上行传输或者其它的通信 系统中的应用仍属于本发明保护范围。
进一步地,所述数据流包括多个数据块,数据块包括多个元素( Element ), 例如, 请参阅图 14所示的一种数据流的示意图, 图中的数据流包括 4个数据 块(如序号 1、 2、 3以及 4所示), 每个数据块包括 4个元素。 其中, 所述元 素按一定顺序依次排列在数据块中。
具体的, 发送设备获取经调制后输入的一个或多个数据流。
S102,分别在各所述数据流中,将至少两个所述数据块的所述元素进行交 织生成新数据块, 所述新数据块的个数与进行交织的所述数据块的个数相同。
具体的, 请参阅图 1, 发送设备分别在各数据流中将该数据流中的至少两 个数据块的元素进行交织生成新的数据块, 若该数据流中有 N个数据块, 那 么可随机挑选出 M个数据块进行交织,其中 M<N。需要指出的是,一般来说, 交织深度越大, 则传输性能越好, 但计算的复杂度升高, 需要对更多的数据做 位置搬移的计算和处理, 因此 M的选择可以取决于传输性能和复杂度两方面 的折中考虑。 其中, 生成的新数据块的个数与进行交织的数据块的个数相同。 例如: 对 4个数据块的元素进行交织, 那么生成的新数据块也为 4个, 且每个 数据块的元素个数未改变。 可选的一个实施方式,发送设备先分别在每个数据流中确定该数据流的数 据块的个数是偶数还是奇数, 根据确定的结果执行以下步骤:
若该数据流包括偶数个数据块, 则将数据流中的数据块两两配对, 并将配 对的数据块的元素进行交织生成两个新数据块。 需要指出的是, 可任意选择两 个数据块配为一对, 这里不作限定。 可选地, 设数据流包括 NDB个数据块, 发 送设备可将第 1个和第 NDB/2+l个数据块放在一起进行元素交织,将第 2个和 NDB/2+2个数据块放在一起进行元素交织 ... ...将第 NDB/2个数据块和第 NDB个 数据块放在一起进行元素交织。 例如, 请参阅图 15所示的一种元素的交织方 式的示意图, 假设一个数据流中包括 4个数据块(如图 DB1、 DB2、 DB3 以 及 DB4 )所示,现将每个数据块的元素标明序号, DB 1和 DB3进行交织, DB2 和 DB4进行交织, 可见最后得到的新数据块的元素个数未发生改变, 但元素 发生改变。
若所述数据流包括奇数个所述数据块,则在所述数据流中除开任意一个所 述数据块后,将剩下的所述数据块两两配对, 并将配对的所述数据块的所述元 素进行交织生成两个新数据块。 需要指出的是, 可任意除开一个数据块, 且可 任意选择两个数据块配为一对, 这里不作限定。 可选地, 设数据流包括 NDB 个数据块,发送设备可将第 1个和第 NDB/2+l个数据块放在一起进行元素交织, 将第 2个和 NDB/2+2个数据块放在一起进行元素交织 ... ...将第 NDB/2-l个数据 块和第 NDB个数据块放在一起进行元素交织。 例如, 请参阅图 16所示的另一 种元素的交织方式的示意图,假设一个数据流中包括 5个数据块(如图 DB1、 DB2、 DB3、 DB4 以及 DB5 ) 所示, 现将每个数据块的元素标明序号, DB1 和 DB4进行交织, DB2和 DB5进行交织, DB3不作处理, 可见最后得到的新 数据块的元素个数未发生改变, 但元素发生改变。
以上的实施方式是一种较为简单的交织方式,缺点是交织深度不足, 以及 奇数个数据块的情况下至少有一个数据块的元素不能参与交织。
另可选的一个实施方式,发送设备分别在各数据流中,提取数据流中的至 第一元素序列, 所述第一元素序列包括提取的所述数据块的元素; 改变第一元 素序列中的元素的排列顺序,构成第二元素序列; 按预设的顺序从所述第二元 素序列中依次获取新数据块,新数据块的个数与提取的数据块的个数相同。具 体实现过程中, 请参阅图 17所示的又一种元素的交织方式的示意图, 08^表 示第一元素序列, 由多个数据块的元素构成, idxin表示第一元素序列中元素的 序号, DB。ut表示第二元素序列, idx。ut表示经过交织后输出的序号, 即第二元 素序列中元素的序号, 其中, 发送设备先将 DB1、 DB2、 DB3以及 DB4的 4 个数据块串行排列构成第一元素序列 DBin, 再改变第一元素序列 DBin中的元 素的排列顺序构成第二元素序列 DB。ut, 例如, 图中的第一元素序列 DBin中的 元素 6的位置被改变到第二元素序列 DB。ut中的元素 14的位置,最后按照 DB1、 DB2. DB3以及 DB4的顺序从第二元素序列 DB。ut中依次获取新数据块 DB1,、 DB2,、 DB3,以及 DB4,, 可见最后得到的新数据块的元素个数未发生改变, 但元素发生改变。
进一步可选的,发送设备还可以先将第一元素序列以元素为单位分为多个 分组,即第一元素序列包括串行排列的多个分组,每个分组包括至少一个元素; 再改变第一元素序列中的分组的排列顺序,构成第二元素序列; 最后按预设的 顺序从第二元素序列中依次获取新数据块,新数据块的个数与提取的数据块的 个数相同。 具体实现过程可类比图 17所示的交织方法, 区别在于改变顺序的 是分组而不是元素, 例如, 请参阅图 18所示的一种元素的分组交织方式的示 意图, 从左至右有 5个数据流, 每个数据流有 4个数据块(每列表示 1个数据 块), 第 1个数据流表示交织前的数据流, 第 2个数据流表示以 1个元素为分 组进行交织得到的数据流,第 3个数据流表示以 2个元素为分组进行交织得到 的数据流, 第 4个数据流表示以 3个元素为分组进行交织得到的数据流, 第 5 个数据流表示以 4个元素为分组进行交织得到的数据流,可见分组包括的元素 越少, 交织深度越大, 以此可改变交织深度。
更进一步地,发送设备改变第一元素序列中的分组的排列顺序,构成第二 元素序列的具体实施方式可以是: 先将所述第一元素序列转换为元素矩阵; 再 对所述元素矩阵中的元素进行偏移处理;最后将偏移处理后的所述元素矩阵转 换为所述第二元素序列。 需要指出的是,发送设备还需获取信号空间层的个数 Nlayer、 数据块中的元素的个数 Ne以及分组中的元素的个数 Nge。 其中, 发送设 备可根据公式
Figure imgf000016_0001
将第一元素序列转换为元素矩阵, 其中 idxin是第一元素序列中的元素的序号,
( iin, jin )是元素矩阵中的元素的序号。 发送设备可根据公式
_ Ί ( lin A ,
Joffset ― ceu I ~ I―丄
\1 ge /
对元素矩阵中的分组进行偏移处理, 其中 j。ffset是偏移处理的偏移量。 发送设 备可根据公式
iin + (Nlayer ― ' m〇d(j in τ Joffset, Nlayer ) = ◦
idXout =
η + (mod(jin + joffSet , Nlayer ) - 1), otherwise 将偏移处理后的元素矩阵转换为第二元素序列, 其中 idx。ut是第二元素序列中 的元素的序号。
以上的实施方式是一种详细、 具体和全面的交织方式, 具有交织深度高, 应用对象广的优点。
S 103,分别将携带有所述新数据块的各数据流映射到对应的信号空间层并 通过天线端口发送到接收设备。
所述信号空间层是时间、 频率以及空间的资源组合。 具体的, 发送设备分 别将携带有新数据块的各数据流映射到对应的时间、频率以及空间的资源组合 上, 由于新数据块中的元素已作交织,故相当于原有的数据块的元素被分散映 射到多个时频资源上, 如图 19的一种新数据流的示意图所示, 从而获取了在 时间分集、 频率分集以及空间分集上的增益。
本发明实施例通过分别在获取的各数据流中,将至少两个数据块的元素进 行交织生成新数据块, 其中, 数据流包括多个数据块, 数据块包括多个元素, 新数据块的个数与进行交织的数据块的个数相同,再分别将携带有新数据块的 各数据流映射到对应的信号空间层并通过天线端口发送到接收设备的方法,实 现了数据流交织传输, 可以提升无线传输的时间分集、频率分集以及空间分集 的增益, 提高无线传输的性能。 图 3是本发明另一实施例中一种交织传输的方法, 可以包括:
S201 , 获取调制后的至少一个数据流, 所述数据流包括多个数据块, 所述 数据块包括多个元素。
由于本发明实施例以 LTE 系统的下行传输为例, 故所述数据流是携带有 发送设备下行传输给接收设备的消息的数据信号, 所述发送设备可以是基站, 所述接收设备可以是用户设备。 需要指出的是, 本发明实施例虽针对的是 LTE 系统的下行传输, 但并不局限于此, 在 LTE 系统的上行传输或者其它的通信 系统中的应用仍属于本发明保护范围。
进一步地,所述数据流包括多个数据块,数据块包括多个元素( Element ), 例如, 请参阅图 14所示的一种数据流的示意图, 图中的数据流包括 4个数据 块(如序号 1、 2、 3以及 4所示), 每个数据块包括 4个元素。 其中, 所述元 素按一定顺序依次排列在数据块中。
具体的, 发送设备获取经调制后输入的一个或多个数据流。
5202, 在每个数据流中, 判断数据流包括的数据块的个数是否为偶数。 请参阅图 1, 发送设备会分别在各数据流中将该数据流中的至少两个数据 块的元素进行交织生成新的数据块, 若该数据流中有 N个数据块, 那么可随 机挑选出 M个数据块进行交织, 其中 M<N。 需要指出的是, 一般来说, 交织 深度越大, 则传输性能越好, 但计算的复杂度升高, 需要对更多的数据做位置 搬移的计算和处理, 因此 M的选择可以取决于传输性能和复杂度两方面的折 中考虑。其中,生成的新数据块的个数与进行交织的数据块的个数相同。例如: 对 4个数据块的元素进行交织, 那么生成的新数据块也为 4个,且每个数据块 的元素个数未改变。
具体的,发送设备分别在各数据流中将该数据流中的至少两个数据块的元 素进行交织之前, 先判断数据流包括的数据块的个数是否为偶数, 若为偶数, 则进入步骤 S203, 若为奇数, 则执行步骤 S204。
5203,将所述数据流中的所述数据块两两配对,并将配对的所述数据块的 所述元素进行交织生成两个新数据块。
具体的,发送设备将数据流中的数据块两两配对, 并将配对的数据块的元 素进行交织生成两个新数据块。 需要指出的是, 可任意选择两个数据块配为一 对, 这里不作限定。 可选地, 设数据流包括 NDB个数据块, 发送设备可将第 1 个和第 NDB/2+l个数据块放在一起进行元素交织,将第 2个和 NDB/2+2个数据 块放在一起进行元素交织 ... ...将第 NDB/2个数据块和第 NDB个数据块放在一起 进行元素交织。 例如, 请参阅图 15所示的一种元素的交织方式的示意图, 假 设一个数据流中包括 4个数据块(如图 DB1、 DB2、 DB3以及 DB4 )所示, 现将每个数据块的元素标明序号, DB1和 DB3进行交织, DB2和 DB4进行交 织, 可见最后得到的新数据块的元素个数未发生改变, 但元素发生改变。
S204,在所述数据流中除开任意一个所述数据块后,将剩下的所述数据块 两两配对, 并将配对的所述数据块的所述元素进行交织生成两个新数据块。
具体的,发送设备在所述数据流中除开任意一个所述数据块后,将剩下的 所述数据块两两配对,并将配对的所述数据块的所述元素进行交织生成两个新 数据块。 需要指出的是, 可任意除开一个数据块, 且可任意选择两个数据块配 为一对, 这里不作限定。 可选地, 设数据流包括 NDB个数据块, 发送设备可将 第 1个和第 NDB/2+l个数据块放在一起进行元素交织,将第 2个和 NDB/2+2个 数据块放在一起进行元素交织 ... ...将第 NDB/2-l个数据块和第 NDB个数据块放 在一起进行元素交织。 例如, 请参阅图 16所示的另一种元素的交织方式的示 意图, 假设一个数据流中包括 5个数据块(如图 DB1、 DB2、 DB3、 DB4以及 DB5 )所示, 现将每个数据块的元素标明序号, DB1和 DB4进行交织, DB2 和 DB5进行交织, DB3不作处理, 可见最后得到的新数据块的元素个数未发 生改变, 但元素发生改变。
S205,分别将携带有所述新数据块的各数据流映射到对应的信号空间层并 通过天线端口发送到接收设备。
所述信号空间层是时间、 频率以及空间的资源组合。 具体的, 发送设备分 别将携带有新数据块的各数据流映射到对应的时间、频率以及空间的资源组合 上, 由于新数据块中的元素已作交织,故相当于原有的数据块的元素被分散映 射到多个时频资源上, 如图 19的一种新数据流的示意图所示, 从而获取了在 时间分集、 频率分集以及空间分集上的增益。
本发明实施例通过分别在获取的各数据流中,将至少两个数据块的元素进 行交织生成新数据块, 其中, 数据流包括多个数据块, 数据块包括多个元素, 新数据块的个数与进行交织的数据块的个数相同,再分别将携带有新数据块的 各数据流映射到对应的信号空间层并通过天线端口发送到接收设备的方法,实 现了数据流交织传输, 可以提升无线传输的时间分集、频率分集以及空间分集 的增益, 提高无线传输的性能。 图 4是本发明另一实施例中另一种交织传输的方法, 可以包括:
S301 , 获取调制后的至少一个数据流, 所述数据流包括多个数据块, 所述 数据块包括多个元素。
由于本发明实施例以 LTE 系统的下行传输为例, 故所述数据流是携带有 发送设备下行传输给接收设备的消息的数据信号, 所述发送设备可以是基站, 所述接收设备可以是用户设备。 需要指出的是, 本发明实施例虽针对的是 LTE 系统的下行传输, 但并不局限于此, 在 LTE 系统的上行传输或者其它的通信 系统中的应用仍属于本发明保护范围。
进一步地,所述数据流包括多个数据块,数据块包括多个元素( Element ), 例如, 请参阅图 14所示的一种数据流的示意图, 图中的数据流包括 4个数据 块(如序号 1、 2、 3以及 4所示), 每个数据块包括 4个元素。 其中, 所述元 素按一定顺序依次排列在数据块中。
具体的, 发送设备获取经调制后输入的一个或多个数据流。
S302,提取所述数据流中的至少两个所述数据块,并将提取的所述数据块 按预设的顺序进行串行排列,构成第一元素序列, 所述第一元素序列包括提取 的所述数据块的元素。
请参阅图 1, 发送设备会分别在各数据流中将该数据流中的至少两个数据 块的元素进行交织生成新的数据块, 若该数据流中有 N个数据块, 那么可随 机挑选出 M个数据块进行交织, 其中 M<N。 需要指出的是, 一般来说, 交织 深度越大, 则传输性能越好, 但计算的复杂度升高, 需要对更多的数据做位置 搬移的计算和处理, 因此 M的选择可以取决于传输性能和复杂度两方面的折 中考虑。其中,生成的新数据块的个数与进行交织的数据块的个数相同。例如: 对 4个数据块的元素进行交织, 那么生成的新数据块也为 4个,且每个数据块 的元素个数未改变。
具体的,发送设备分别在各数据流中,提取数据流中的至少两个所述数据 所述第一元素序列包括提取的所述数据块的元素。 例如, 请参阅图 17所示的 又一种元素的交织方式的示意图, DBin表示第一元素序列, 由多个数据块的元 素构成, idxin表示第一元素序列中元素的序号,其中,发送设备将 DB1、 DB2、 DB3以及 DB4的 4个数据块串行排列构成第一元素序列 DBin
可选的,发送设备可以先将第一元素序列以元素为单位分为多个分组, 即 第一元素序列包括串行排列的多个分组,每个分组包括至少一个元素。具体实 现过程可类比图 17中的排列方式, 区别在于以分组来进行排列。
5303, 改变所述第一元素序列中的元素的排列顺序, 构成第二元素序列。 具体的,发送设备改变第一元素序列中的元素的排列顺序,构成第二元素 序列。 例如, 请参阅图 17所示的又一种元素的交织方式的示意图, DB。ut表示 第二元素序列, idx。ut表示经过交织后输出的序号, 即第二元素序列中元素的 序号, 其中, 发送设备改变第一元素序列 DBin中的元素的排列顺序构成第二 元素序列 DB。ut, 如图中的第一元素序列 DBin†的元素 6的位置被改变到第二 元素序列 DB。ut中的元素 14的位置。
同理可选的, 若第一元素序列中元素已归为多个分组, 则发送设备改变第 一元素序列中的分组的排列顺序,构成第二元素序列。具体实现过程可类比图 17所示的交织方法, 区别在于改变顺序的是分组而不是元素。
5304,按所述预设的顺序从所述第二元素序列中依次获取新数据块, 所述 新数据块的个数与提取的所述数据块的个数相同。
具体的,发送设备按预设的顺序从所述第二元素序列中依次获取新数据块, 新数据块的个数与提取的数据块的个数相同。 具体实现过程中, 请参阅图 17 所示的又一种元素的交织方式的示意图,图中的第一元素序列 08^中的元素 6 的位置被改变到第二元素序列 DB。ut中的元素 14的位置,最后按照 DB1、DB2、 DB3以及 DB4的顺序从第二元素序列 DB。ut中依次获取新数据块 DB Γ、 DB2'、 DB3'以及 DB4', 可见最后得到的新数据块的元素个数未发生改变, 但元素 发生改变。
同理可选的, 若第一元素序列中元素已归为多个分组, 请参阅图 18所示 的一种元素的分组交织方式的示意图,从左至右有 5个数据流,每个数据流有 4个数据块(每列表示 1个数据块), 第 1个数据流表示交织前的数据流, 第 2 个数据流表示以 1个元素为分组进行交织得到的数据流,第 3个数据流表示以 2个元素为分组进行交织得到的数据流, 第 4个数据流表示以 3个元素为分组 进行交织得到的数据流,第 5个数据流表示以 4个元素为分组进行交织得到的 数据流, 可见分组包括的元素越少, 交织深度越大, 以此可改变交织深度。
S305,分别将携带有所述新数据块的各数据流映射到对应的信号空间层并 通过天线端口发送到接收设备。
所述信号空间层是时间、 频率以及空间的资源组合。 具体的, 发送设备分 别将携带有新数据块的各数据流映射到对应的时间、频率以及空间的资源组合 上, 由于新数据块中的元素已作交织,故相当于原有的数据块的元素被分散映 射到多个时频资源上, 如图 19的一种新数据流的示意图所示, 从而获取了在 时间分集、 频率分集以及空间分集上的增益。
本发明实施例通过分别在获取的各数据流中,将至少两个数据块的元素进 行交织生成新数据块, 其中, 数据流包括多个数据块, 数据块包括多个元素, 新数据块的个数与进行交织的数据块的个数相同,再分别将携带有新数据块的 各数据流映射到对应的信号空间层并通过天线端口发送到接收设备的方法,实 现了数据流交织传输, 可以提升无线传输的时间分集、频率分集以及空间分集 的增益, 提高无线传输的性能。 图 5是本发明另一实施例中又一种交织传输的方法, 可以包括:
S401 , 获取调制后的至少一个数据流, 所述数据流包括多个数据块, 所述 数据块包括多个元素。
由于本发明实施例以 LTE 系统的下行传输为例, 故所述数据流是携带有 发送设备下行传输给接收设备的消息的数据信号, 所述发送设备可以是基站, 所述接收设备可以是用户设备。 需要指出的是, 本发明实施例虽针对的是 LTE 系统的下行传输, 但并不局限于此, 在 LTE 系统的上行传输或者其它的通信 系统中的应用仍属于本发明保护范围。
进一步地,所述数据流包括多个数据块,数据块包括多个元素( Element ), 例如, 请参阅图 14所示的一种数据流的示意图, 图中的数据流包括 4个数据 块(如序号 1、 2、 3以及 4所示), 每个数据块包括 4个元素。 其中, 所述元 素按一定顺序依次排列在数据块中。
具体的, 发送设备获取经调制后输入的一个或多个数据流。
5402,提取所述数据流中的至少两个所述数据块,并将提取的所述数据块 按预设的顺序进行串行排列,构成第一元素序列, 所述第一元素序列包括串行 排列的多个分组, 所述分组包括至少一个所述元素。
请参阅图 1, 发送设备会分别在各数据流中将该数据流中的至少两个数据 块的元素进行交织生成新的数据块, 若该数据流中有 N个数据块, 那么可随 机挑选出 M个数据块进行交织, 其中 M<N。 需要指出的是, 一般来说, 交织 深度越大, 则传输性能越好, 但计算的复杂度升高, 需要对更多的数据做位置 搬移的计算和处理, 因此 M的选择可以取决于传输性能和复杂度两方面的折 中考虑。其中,生成的新数据块的个数与进行交织的数据块的个数相同。例如: 对 4个数据块的元素进行交织, 那么生成的新数据块也为 4个,且每个数据块 的元素个数未改变。
具体的,发送设备提取数据流中的至少两个数据块, 并将提取的数据块按 预设的顺序进行串行排列,构成第一元素序列, 所述第一元素序列包括串行排 列的多个分组, 所述分组包括至少一个元素。 另外, 发送设备还需获取信号空 间层的个数 Nlayer, 数据块中的元素的个数 Ne以及分组中的元素的个数 Nge
5403 , 将所述第一元素序列转换为元素矩阵。
具体的, 发送设备根据公式
i = ( Ne, mod(idxin, Ne) = 0 且 = ceil idxin\ m _ lmod(idxin, Ne), otherwise Jm― V Ne / 将第一元素序列转换为元素矩阵, 其中 idxin是第一元素序列中的元素的序号,
( iin, jin )是元素矩阵中的元素的序号。
5404, 对所述元素矩阵中的元素进行偏移处理。
具体的, 发送设备根据公式
_ Ί ( lin A ,
Joffset ― ceu I ~ I―丄
\1 ge /
对元素矩阵中的分组进行偏移处理, 其中 j。ffset是偏移处理的偏移量。
S405 , 将偏移处理后的所述元素矩阵转换为所述第二元素序列。
具体的, 发送设备根据公式 . , f iin + (Nlayer ― > mod(j in τ J offset, Nlayer ) = ◦ lQX〇ut 一 I r 、
Uin + (mod jin + joffset ' Nlayer ) - 1), otherwise 将偏移处理后的元素矩阵转换为第二元素序列, 其中 idx。ut是第二元素序列中 的元素的序号。
S406 ,按所述预设的顺序从所述第二元素序列中依次获取新数据块, 所述 新数据块的个数与提取的所述数据块的个数相同。
具体的,发送设备按预设的顺序从第二元素序列中依次获取新数据块, 其 中, 新数据块的个数与提取的数据块的个数相同。
例如, 请参阅图 18所示的一种元素的分组交织方式的示意图, 从左至右 有 5个数据流, 每个数据流有 4个数据块 (每列表示 1个数据块 ), 第 1个数 据流表示交织前的数据流,第 2个数据流表示以 1个元素为分组进行交织得到 的数据流, 第 3个数据流表示以 2个元素为分组进行交织得到的数据流, 第 4 个数据流表示以 3个元素为分组进行交织得到的数据流,第 5个数据流表示以 4个元素为分组进行交织得到的数据流, 可见分组包括的元素越少, 交织深度 越大, 以此可改变交织深度。
S407,分别将携带有所述新数据块的各数据流映射到对应的信号空间层并 通过天线端口发送到接收设备。
所述信号空间层是时间、 频率以及空间的资源组合。 具体的, 发送设备分 别将携带有新数据块的各数据流映射到对应的时间、频率以及空间的资源组合 上, 由于新数据块中的元素已作交织,故相当于原有的数据块的元素被分散映 射到多个时频资源上, 如图 19的一种新数据流的示意图所示, 从而获取了在 时间分集、 频率分集以及空间分集上的增益。
本发明实施例通过分别在获取的各数据流中,将至少两个数据块的元素进 行交织生成新数据块, 其中, 数据流包括多个数据块, 数据块包括多个元素, 新数据块的个数与进行交织的数据块的个数相同,再分别将携带有新数据块的 各数据流映射到对应的信号空间层并通过天线端口发送到接收设备的方法,实 现了数据流交织传输, 可以提升无线传输的时间分集、频率分集以及空间分集 的增益, 提高无线传输的性能。 图 6是本发明又一实施例中一种交织传输的方法, 可以包括:
5501 ,发送设备获取调制后的至少一个数据流,所述数据流包括多个数据 块, 所述数据块包括多个元素。
由于本发明实施例以 LTE 系统的下行传输为例, 故所述数据流是携带有 发送设备下行传输给接收设备的消息的数据信号, 所述发送设备可以是基站, 所述接收设备可以是用户设备。 需要指出的是, 本发明实施例虽针对的是 LTE 系统的下行传输, 但并不局限于此, 在 LTE 系统的上行传输或者其它的通信 系统中的应用仍属于本发明保护范围。
进一步地,所述数据流包括多个数据块,数据块包括多个元素( Element ), 例如, 请参阅图 14所示的一种数据流的示意图, 图中的数据流包括 4个数据 块(如序号 1、 2、 3以及 4所示), 每个数据块包括 4个元素。 其中, 所述元 素按一定顺序依次排列在数据块中。
具体的, 发送设备获取经调制后输入的一个或多个数据流。
5502,发送设备分别在各所述数据流中,将至少两个所述数据块的所述元 素进行交织生成新数据块,所述新数据块的个数与进行交织的所述数据块的个 数相同。
具体的, 请参阅图 1, 发送设备分别在各数据流中将该数据流中的至少两 个数据块的元素进行交织生成新的数据块, 若该数据流中有 N个数据块, 那 么可随机挑选出 M个数据块进行交织,其中 M<N。需要指出的是,一般来说, 交织深度越大, 则传输性能越好, 但计算的复杂度升高, 需要对更多的数据做 位置搬移的计算和处理, 因此 M的选择可以取决于传输性能和复杂度两方面 的折中考虑。 其中, 生成的新数据块的个数与进行交织的数据块的个数相同。 例如: 对 4个数据块的元素进行交织, 那么生成的新数据块也为 4个, 且每个 数据块的元素个数未改变。
可选的一个实施方式,发送设备先分别在每个数据流中确定该数据流的数 据块的个数是偶数还是奇数, 根据确定的结果执行以下步骤:
若该数据流包括偶数个数据块, 则将数据流中的数据块两两配对, 并将配 对的数据块的元素进行交织生成两个新数据块。 需要指出的是, 可任意选择两 个数据块配为一对, 这里不作限定。 可选地, 设数据流包括 NDB个数据块, 发 送设备可将第 1个和第 NDB/2+l个数据块放在一起进行元素交织,将第 2个和 NDB/2+2个数据块放在一起进行元素交织 ... ...将第 NDB/2个数据块和第 NDB个 数据块放在一起进行元素交织。 例如, 请参阅图 15所示的一种元素的交织方 式的示意图, 假设一个数据流中包括 4个数据块(如图 DB1、 DB2、 DB3 以 及 DB4 )所示,现将每个数据块的元素标明序号, DB1和 DB3进行交织, DB2 和 DB4进行交织, 可见最后得到的新数据块的元素个数未发生改变, 但元素 发生改变。
若所述数据流包括奇数个所述数据块,则在所述数据流中除开任意一个所 述数据块后,将剩下的所述数据块两两配对, 并将配对的所述数据块的所述元 素进行交织生成两个新数据块。 需要指出的是, 可任意除开一个数据块, 且可 任意选择两个数据块配为一对, 这里不作限定。 可选地, 设数据流包括 NDB 个数据块,发送设备可将第 1个和第 NDB/2+l个数据块放在一起进行元素交织, 将第 2个和 NDB/2+2个数据块放在一起进行元素交织 ... ...将第 NDB/2-l个数据 块和第 NDB个数据块放在一起进行元素交织。 例如, 请参阅图 16所示的另一 种元素的交织方式的示意图,假设一个数据流中包括 5个数据块(如图 DB1、 DB2、 DB3、 DB4 以及 DB5 ) 所示, 现将每个数据块的元素标明序号, DB1 和 DB4进行交织, DB2和 DB5进行交织, DB3不作处理, 可见最后得到的新 数据块的元素个数未发生改变, 但元素发生改变。
以上的实施方式是一种较为简单的交织方式,缺点是交织深度不足, 以及 奇数个数据块的情况下至少有一个数据块的元素不能参与交织。
另可选的一个实施方式,发送设备分别在各数据流中,提取数据流中的至 第一元素序列, 所述第一元素序列包括提取的所述数据块的元素; 改变第一元 素序列中的元素的排列顺序,构成第二元素序列; 按预设的顺序从所述第二元 素序列中依次获取新数据块,新数据块的个数与提取的数据块的个数相同。 具 体实现过程中, 请参阅图 17所示的又一种元素的交织方式的示意图, 08^表 示第一元素序列, 由多个数据块的元素构成, idxin表示第一元素序列中元素的 序号, DB。ut表示第二元素序列, idx。ut表示经过交织后输出的序号, 即第二元 素序列中元素的序号, 其中, 发送设备先将 DB1、 DB2、 DB3以及 DB4的 4 个数据块串行排列构成第一元素序列 DBin, 再改变第一元素序列 DBin中的元 素的排列顺序构成第二元素序列 DB。ut, 例如, 图中的第一元素序列 DBin中的 元素 6的位置被改变到第二元素序列 DB。ut中的元素 14的位置,最后按照 DB1、 DB2. DB3以及 DB4的顺序从第二元素序列 DB。ut中依次获取新数据块 DB1,、 DB2,、 DB3,以及 DB4,, 可见最后得到的新数据块的元素个数未发生改变, 但元素发生改变。
进一步可选的,发送设备还可以先将第一元素序列以元素为单位分为多个 分组,即第一元素序列包括串行排列的多个分组,每个分组包括至少一个元素; 再改变第一元素序列中的分组的排列顺序,构成第二元素序列; 最后按预设的 顺序从第二元素序列中依次获取新数据块,新数据块的个数与提取的数据块的 个数相同。 具体实现过程可类比图 17所示的交织方法, 区别在于改变顺序的 是分组而不是元素, 例如, 请参阅图 18所示的一种元素的分组交织方式的示 意图, 从左至右有 5个数据流, 每个数据流有 4个数据块(每列表示 1个数据 块), 第 1个数据流表示交织前的数据流, 第 2个数据流表示以 1个元素为分 组进行交织得到的数据流,第 3个数据流表示以 2个元素为分组进行交织得到 的数据流, 第 4个数据流表示以 3个元素为分组进行交织得到的数据流, 第 5 个数据流表示以 4个元素为分组进行交织得到的数据流,可见分组包括的元素 越少, 交织深度越大, 以此可改变交织深度。
更进一步地,发送设备改变第一元素序列中的分组的排列顺序,构成第二 元素序列的具体实施方式可以是: 先将所述第一元素序列转换为元素矩阵; 再 对所述元素矩阵中的元素进行偏移处理;最后将偏移处理后的所述元素矩阵转 换为所述第二元素序列。 需要指出的是,发送设备还需获取信号空间层的个数 Nlayer、 数据块中的元素的个数 Ne以及分组中的元素的个数 Nge。 其中, 发送设 备可根据公式
i = ( Ne, mod(idxin, Ne) = 0 且 = ceil idxin\ m _ lmod(idxin, Ne), otherwise Jm― V Ne / 将第一元素序列转换为元素矩阵, 其中 idxin是第一元素序列中的元素的序号,
( iin, jin )是元素矩阵中的元素的序号。 发送设备可根据公式 joffset = ceil (^ -] - 1 对元素矩阵中的分组进行偏移处理, 其中 j。ffset是偏移处理的偏移量。 发送设 备可根据公式
. , f iin + (Nlayer― ' mod(j in τ J offset, Nlayer ) = ◦ lQX〇ut 一 I r 、
Uin + (mod jin + joffset ' Nlayer ) - 1), otherwise
将偏移处理后的元素矩阵转换为第二元素序列, 其中 idx。ut是第二元素序列中 的元素的序号。
以上的实施方式是一种详细、 具体和全面的交织方式, 具有交织深度高, 应用对象广的优点。
S503,发送设备分别将携带有所述新数据块的各数据流映射到对应的信号 空间层并通过天线端口发送到接收设备。
所述信号空间层是时间、 频率以及空间的资源组合。 具体的, 发送设备分 别将携带有新数据块的各数据流映射到对应的时间、频率以及空间的资源组合 上, 由于新数据块中的元素已作交织,故相当于原有的数据块的元素被分散映 射到多个时频资源上, 如图 19的一种新数据流的示意图所示, 从而获取了在 时间分集、 频率分集以及空间分集上的增益。
S504 ,接收设备分别对各所述数据流中的多个所述新数据块的元素进行解 交织处理。
具体的, 由于发送设备已经对原数据流中的数据块进行了交织,得到的新 数据流并不能被直接识别,因此接收设备将分别对各数据流中的多个新数据块 的元素进行解交织处理, 以还原得到原数据流。
具体实现过程中,若新数据块是由发送设备将数据流中的数据块两两配对, 并将配对的数据块的元素进行交织后成对生成的,则接收设备分别在各数据流 中, 对成对生成的两个新数据块进行解交织处理。 其中, 接收设备解交织是发 送设备执行交织的逆过程。
若新数据块是由发送设备通过以下方法生成的:提取数据流中的至少两个 歹 ij, 所述第一元素序列包括提取的所述数据块的元素; 改变第一元素序列中的 元素的排列顺序,构成第二元素序列; 按预设的顺序从第二元素序列中依次获 取新数据块, 获取的新数据块的个数与提取的数据块的个数相同。 则接收设备 分别在各数据流中,将新数据块按预设的顺序进行串行排列,构成第二元素序 歹 |J, 所述第二元素序列包括所述新数据块的元素; 将第二元素序列中的元素的 排列顺序还原为第一元素序列中的元素的排列顺序;按预设的顺序从第一元素 序列中依次获取数据块, 获取的数据块的个数与新数据块的个数相同。 需要指 出的是, 无论发送设备利用哪种方式对数据块进行交织,接收设备解交织的过 程始终是其逆过程。 例如, 发送设备可将数据块中的元素归为多个分组, 在改 变第一元素序列中的元素的排列顺序时直接改变分组的排列顺序, 因此,接收 设备在将第二元素序列中的元素的排列顺序还原为第一元素序列中的元素的 排列顺序时, 需按分组来还原。 的元素进行交织生成新数据块, 其中, 数据流包括多个数据块, 数据块包括多 个元素,新数据块的个数与进行交织的数据块的个数相同,再分别将携带有新 数据块的各数据流映射到对应的信号空间层并通过天线端口发送到接收设备, 相应地,接收设备对接收到的携带有新数据块的数据流进行解交织以还原得到 原数据流,发送设备和接收设备共同实现了数据流的交织传输, 可以提升无线 传输的时间分集、 频率分集以及空间分集的增益, 提高无线传输的性能。 图 7是本发明实施例中一种交织传输的发送设备的结构示意图。如图所示 本发明实施例中的发送设备至少可以包括数据流获取模块 610、 数据块交织模 块 620以及数据流映射模块 630, 其中:
数据流获取模块 610, 用于获取调制后的至少一个数据流, 所述数据流包 括多个数据块, 所述数据块包括多个元素。
由于本发明实施例以 LTE 系统的下行传输为例, 故所述数据流是携带有 发送设备下行传输给接收设备的消息的数据信号, 所述发送设备可以是基站, 所述接收设备可以是用户设备。 需要指出的是, 本发明实施例虽针对的是 LTE 系统的下行传输, 但并不局限于此, 在 LTE 系统的上行传输或者其它的通信 系统中的应用仍属于本发明保护范围。
进一步地,所述数据流包括多个数据块,数据块包括多个元素( Element ), 例如, 请参阅图 14所示的一种数据流的示意图, 图中的数据流包括 4个数据 块(如序号 1、 2、 3以及 4所示), 每个数据块包括 4个元素。 其中, 所述元 素按一定顺序依次排列在数据块中。
具体的, 数据流获取模块 610获取经调制后输入的一个或多个数据流。 数据块交织模块 620, 用于分别在各所述数据流中, 将至少两个所述数据 块的所述元素进行交织生成新数据块,所述新数据块的个数与进行交织的所述 数据块的个数相同。
具体的, 请参阅图 1, 数据块交织模块 620分别在各数据流中将该数据流 中的至少两个数据块的元素进行交织生成新的数据块, 若该数据流中有 N个 数据块,那么可随机挑选出 M个数据块进行交织,其中 M<N。需要指出的是, 一般来说, 交织深度越大, 则传输性能越好, 但计算的复杂度升高, 需要对更 多的数据做位置搬移的计算和处理, 因此 M的选择可以取决于传输性能和复 杂度两方面的折中考虑。其中, 生成的新数据块的个数与进行交织的数据块的 个数相同。 例如: 对 4个数据块的元素进行交织, 那么生成的新数据块也为 4 个, 且每个数据块的元素个数未改变。
可选的一个实施方式,数据块交织模块 620先分别在每个数据流中确定该 数据流的数据块的个数是偶数还是奇数, 根据确定的结果执行以下步骤:
若该数据流包括偶数个数据块, 则将数据流中的数据块两两配对, 并将配 对的数据块的元素进行交织生成两个新数据块。 需要指出的是, 可任意选择两 个数据块配为一对, 这里不作限定。 可选地, 设数据流包括 NDB个数据块, 数 据块交织模块 620可将第 1个和第 NDB/2+ l个数据块放在一起进行元素交织, 将第 2个和 NDB/2+2个数据块放在一起进行元素交织 ... ...将第 NDB/2个数据块 和第 NDB个数据块放在一起进行元素交织。 例如, 请参阅图 15所示的一种元 素的交织方式的示意图,假设一个数据流中包括 4个数据块(如图 DB1、DB2、 DB3以及 DB4 )所示, 现将每个数据块的元素标明序号, DB1和 DB3进行交 织, DB2和 DB4进行交织,可见最后得到的新数据块的元素个数未发生改变, 但元素发生改变。
若所述数据流包括奇数个所述数据块,则在所述数据流中除开任意一个所 述数据块后,将剩下的所述数据块两两配对, 并将配对的所述数据块的所述元 素进行交织生成两个新数据块。 需要指出的是, 可任意除开一个数据块, 且可 任意选择两个数据块配为一对, 这里不作限定。 可选地, 设数据流包括 NDB 个数据块,数据块交织模块 620可将第 1个和第 NDB/2+ l个数据块放在一起进 行元素交织, 将第 2个和 NDB/2+2个数据块放在一起进行元素交织 ... ...将第
NDB/2- l个数据块和第 NDB个数据块放在一起进行元素交织。 例如, 请参阅图 16所示的另一种元素的交织方式的示意图, 4叚设一个数据流中包括 5个数据 块(如图 DB1、 DB2、 DB3、 DB4 以及 DB5 ) 所示, 现将每个数据块的元素 标明序号, DB1和 DB4进行交织, DB2和 DB5进行交织, DB3不作处理, 可见最后得到的新数据块的元素个数未发生改变, 但元素发生改变。
以上的实施方式是数据块交织模块 620的一种较为简单的交织方式,缺点 是交织深度不足,以及奇数个数据块的情况下至少有一个数据块的元素不能参 与交织。 请参阅图 8, 如图 8所示的数据块交织模块 620可进一步包括第一元 素序列构成单元 621、第二元素序列构成单元 622以及新数据块获取单元 623, 其中:
第一元素序列构成单元 621, 用于提取所述数据流中的至少两个所述数据 所述第一元素序列包括提取的所述数据块的元素。
具体的, 请参阅图 17所示的又一种元素的交织方式的示意图, DBin表示 第一元素序列, 由多个数据块的元素构成, (1 表示第一元素序列中元素的序 号, 第一元素序列构成单元 621将 DB1、 DB2、 DB3以及 DB4的 4个数据块 串行排列构成第一元素序列 DBin
可选的,第一元素序列构成单元 621还可以先将第一元素序列以元素为单 位分为多个分组, 即第一元素序列包括串行排列的多个分组,每个分组包括至 少一个元素。 具体实现过程可类比图 17中的排列方式, 区别在于以分组来进 行排列。
第二元素序列构成单元 622, 用于改变所述第一元素序列中的元素的排列 顺序, 构成第二元素序列。
具体的,第二元素序列构成单元 622改变第一元素序列中的元素的排列顺 序, 构成第二元素序列。 例如, 请参阅图 17所示的又一种元素的交织方式的 示意图, DB。ut表示第二元素序列, idx。ut表示经过交织后输出的序号, 即第二 元素序列中元素的序号, 其中, 第二元素序列构成单元 622改变第一元素序列 DBin中的元素的排列顺序构成第二元素序列 DB。ut, 如图中的第一元素序列 08^中的元素 6的位置被改变到第二元素序列 DB。ut中的元素 14的位置。
同理可选的, 若第一元素序列中元素已归为多个分组, 则第二元素序列构 成单元 622改变第一元素序列中的分组的排列顺序,构成第二元素序列。具体 实现过程可类比图 17所示的交织方法, 区别在于改变顺序的是分组而不是元 素。 进一步的, 请参阅图 9, 如图 9所示的第二元素序列构成单元可包括第一 转换子单元 622a、 偏移处理子单元 622b以及第二转换子单元 622c, 其中: 第一转换子单元 622a, 用于将所述第一元素序列转换为元素矩阵。
具体的, 第一转换子单元 622a根据公式
i = ( Ne, mod(idxin, Ne) = 0 且 =
m _ lmod(idxin, Ne), otherwise ―
Figure imgf000031_0001
将第一元素序列转换为元素矩阵, 其中 idxin是第一元素序列中的元素的序号,
( iin, jin )是元素矩阵中的元素的序号。
偏移处理子单元 622b, 用于对所述元素矩阵中的元素进行偏移处理。 具体的, 偏移处理子单元 622b根据公式
_ Ί ( lin A ,
Joffset ― ceu I ~ I―丄
\1 ge /
对元素矩阵中的分组进行偏移处理, 其中 j。ffset是偏移处理的偏移量。
第二转换子单元 622c, 用于将偏移处理后的所述元素矩阵转换为所述第 二元素序列。
具体的, 第二转换子单元 622c根据公式
. A f iin + (Nlayer ― > mod(j in τ Joffset, Nlayer ) = ◦ lQX〇ut 一 I r 、
Uin + (mod jin + joffSet ' Nlayer ) - 1), otherwise 将偏移处理后的元素矩阵转换为第二元素序列, 其中 idx。ut是第二元素序列中 的元素的序号。
新数据块获取单元 623, 用于按所述预设的顺序从所述第二元素序列中依 次获取新数据块, 所述新数据块的个数与提取的所述数据块的个数相同。
具体的,新数据块获取单元 623按预设的顺序从所述第二元素序列中依次 获取新数据块,新数据块的个数与提取的数据块的个数相同。具体实现过程中, 请参阅图 17 所示的又一种元素的交织方式的示意图, 图中的第一元素序列 08^中的元素 6的位置被改变到第二元素序列 DB。ut中的元素 14的位置, 最 后按照 DB1、 DB2、 DB3 以及 DB4的顺序从第二元素序列 DB。ut中依次获取 新数据块 DB1'、 DB2'、 DB3'以及 DB4', 可见最后得到的新数据块的元素 个数未发生改变, 但元素发生改变。
同理可选的, 若第一元素序列中元素已归为多个分组, 请参阅图 18所示 的一种元素的分组交织方式的示意图,从左至右有 5个数据流,每个数据流有 4个数据块(每列表示 1个数据块), 第 1个数据流表示交织前的数据流, 第 2 个数据流表示以 1个元素为分组进行交织得到的数据流,第 3个数据流表示以 2个元素为分组进行交织得到的数据流, 第 4个数据流表示以 3个元素为分组 进行交织得到的数据流,第 5个数据流表示以 4个元素为分组进行交织得到的 数据流, 可见分组包括的元素越少, 交织深度越大, 以此可改变交织深度。
数据流映射模块 630, 用于分别将携带有所述新数据块的各数据流映射到 对应的信号空间层并通过天线端口发送到接收设备。
所述信号空间层是时间、 频率以及空间的资源组合。 具体的, 数据流映射 模块 630分别将携带有新数据块的各数据流映射到对应的时间、频率以及空间 的资源组合上, 由于新数据块中的元素已作交织,故相当于原有的数据块的元 素被分散映射到多个时频资源上, 如图 19的一种新数据流的示意图所示, 从 而获取了在时间分集、 频率分集以及空间分集上的增益。 图 10是本发明实施例中一种交织传输的接收设备的结构示意图。如图所示 本发明实施例中的发送设备至少可以包括数据流获取模块 710和数据块解交织 模块 720, 其中:
数据流获取模块 710, 用于获取发送设备通过天线端口发送来的至少一个 数据流, 所述数据流包括多个新数据块, 所述新数据块包括多个元素, 其中, 所述新数据块是由所述发送设备将数据流中的至少两个数据块的元素进行交 织生成的, 所述新数据块的个数与进行交织的所述数据块的个数相同。
数据块解交织模块 720, 用于分别对各所述数据流中的多个所述新数据块 的元素进行解交织处理。
具体的, 由于发送设备已经对原数据流中的数据块进行了交织,得到的新 数据流并不能被直接识别,因此接收设备将分别对各数据流中的多个新数据块 的元素进行解交织处理, 以还原得到原数据流。
具体实现过程中,若新数据块是由发送设备将数据流中的数据块两两配对, 并将配对的数据块的元素进行交织后成对生成的, 则数据块解交织模块 720分 别在各数据流中, 对成对生成的两个新数据块进行解交织处理。 其中, 接收设 备解交织是发送设备执行交织的逆过程。
若新数据块是由发送设备通过以下方法生成的:提取数据流中的至少两个 歹 |J, 所述第一元素序列包括提取的所述数据块的元素; 改变第一元素序列中的 元素的排列顺序,构成第二元素序列; 按预设的顺序从第二元素序列中依次获 取新数据块, 获取的新数据块的个数与提取的数据块的个数相同。 则数据块解 交织模块 720分别在各数据流中, 将新数据块按预设的顺序进行串行排列, 构 成第二元素序列, 所述第二元素序列包括所述新数据块的元素; 将第二元素序 列中的元素的排列顺序还原为第一元素序列中的元素的排列顺序;按预设的顺 序从第一元素序列中依次获取数据块,获取的数据块的个数与新数据块的个数 相同。 需要指出的是, 无论发送设备利用哪种方式对数据块进行交织, 数据块 解交织模块 720解交织的过程始终是其逆过程。 例如, 发送设备可将数据块中 的元素归为多个分组,在改变第一元素序列中的元素的排列顺序时直接改变分 组的排列顺序, 因此, 数据块解交织模块 720在将第二元素序列中的元素的排 列顺序还原为第一元素序列中的元素的排列顺序时, 需按分组来还原。 图 11是本发明实施例提供的一种交织传输的系统的结构示意图。如图所示 本发明实施例中的交织传输的系统至少可以包括发送设备 810和接收设备 820, 其中:
所述发送设备 810用于获取调制后的至少一个数据流, 所述数据流包括多 个数据块, 所述数据块包括多个元素; 分别在各所述数据流中, 将至少两个所 述数据块的所述元素进行交织生成新数据块,所述新数据块的个数与进行交织 的所述数据块的个数相同;分别将携带有所述新数据块的各数据流映射到对应 的信号空间层并通过天线端口发送到所述接收设备 820; 所述接收设备 820用于获取所述发送设备 810通过天线端口发送来的至少 一个数据流, 所述数据流包括多个新数据块, 所述新数据块包括多个元素, 其 中,所述新数据块是由所述发送设备将数据流中的至少两个数据块的元素进行 交织生成的, 所述新数据块的个数与进行交织的所述数据块的个数相同; 分别 对各所述数据流中的多个所述新数据块的元素进行解交织处理。 图 12是本发明实施例提供的另一种交织传输的发送设备的结构示意图,如 图 12所示, 该发送设备可以包括: 至少一个处理器 901, 例如 CPU, 至少一个 信号收发器 903, 例如物理天线模块, 存储器 904, 至少一个通信总线 902。 其 中, 通信总线 902用于实现这些组件之间的连接通信。 存储器 904可以是高速 RAM存储器, 也可以是非易失的存储器( non-volatile memory ) , 例如至少一 个磁盘存储器。可选的,存储器 904还可以是至少一个位于远离前述处理器 901 的存储装置。存储器 904中存储一组程序代码,且处理器 901用于调用存储器中 存储的程序代码, 用于执行以下操作:
获取调制后的至少一个数据流, 所述数据流包括多个数据块, 所述数据块 包括多个元素;
分别在各所述数据流中,将至少两个所述数据块的所述元素进行交织生成 新数据块, 所述新数据块的个数与进行交织的所述数据块的个数相同;
分别将携带有所述新数据块的各数据流映射到对应的信号空间层并通过 天线端口发送到接收设备。
可选的,处理器 901将至少两个所述数据块的所述元素进行交织生成新数 据块的具体操作为:
若所述数据流包括偶数个所述数据块,则将所述数据流中的所述数据块两 两配对, 并将配对的所述数据块的所述元素进行交织生成两个新数据块;
若所述数据流包括奇数个所述数据块,则在所述数据流中除开任意一个所 述数据块后,将剩下的所述数据块两两配对, 并将配对的所述数据块的所述元 素进行交织生成两个新数据块。
可选的,处理器 901将至少两个所述数据块的所述元素进行交织生成新数 据块的具体操作还可以为: 提取所述数据流中的至少两个所述数据块,并将提取的所述数据块按预设 的顺序进行串行排列,构成第一元素序列, 所述第一元素序列包括提取的所述 数据块的元素;
改变所述第一元素序列中的元素的排列顺序, 构成第二元素序列; 按所述预设的顺序从所述第二元素序列中依次获取新数据块,所述新数据 块的个数与提取的所述数据块的个数相同。
其中, 所述第一元素序列还可以包括串行排列的多个分组, 所述分组包括 至少一个所述元素。相应的, 处理器 901改变所述第一元素序列中的元素的排 列顺序, 构成第二元素序列的具体操作为:
改变所述第一元素序列中的所述分组的排列顺序,构成所述第二元素序列。 进一步的, 处理器 901改变所述第一元素序列中的元素的排列顺序,构成 第二元素序列的具体操作为:
将所述第一元素序列转换为元素矩阵;
对所述元素矩阵中的元素进行偏移处理,或对所述元素矩阵中的所述分组 进行偏移处理;
将偏移处理后的所述元素矩阵转换为所述第二元素序列。
进一步的, 处理器 901将提取的所述数据块按预设的顺序进行串行排列, 构成第一元素序列之后, 还获取所述信号空间层的个数 Nlayer、 所述数据块中 的元素的个数 Ne以及所述分组中的元素的个数 Nge
相应的, 处理器 901将所述第一元素序列转换为元素矩阵具体为: 根据公式
i = ( Ne, mod(idxin, Ne) = 0 且 = idxin\ m _ lmod(idxin, Ne), otherwise ― V Ne / 将所述第一元素序列转换为元素矩阵, 其中所述 idxin是所述第一元素序 列中的元素的序号, 所述(iin, jin )是所述元素矩阵中的元素的序号。 根据公式
Figure imgf000035_0001
对所述元素矩阵中的所述分组进行偏移处理, 其中所述 j。ffset是所述偏移处理 的偏移量。
处理器 901 将偏移处理后的所述元素矩阵转换为所述第二元素序列具体 为:
根据公式
. , ( kn + (Nlayer― ' mod(j in τ J offset, Nlayer ) = ◦
Uin + (mod(jin + joffset ' Nlayer J - 1), otherwise
将偏移处理后的所述元素矩阵转换为所述第二元素序列, 其中所述 idx。ut是所 述第二元素序列中的元素的序号。 图 13是本发明实施例提供的另一种交织传输的接收设备的结构示意图, 如图 13所示, 该发送设备可以包括: 至少一个处理器 1001, 例如 CPU, 至少 一个信号收发器 1003, 例如物理天线模块, 存储器 1004, 至少一个通信总线 1002。 其中, 通信总线 1002用于实现这些组件之间的连接通信。 存储器 1004 可以是高速 RAM存储器, 也可以是非易失的存储器(non-volatile memory ), 例如至少一个磁盘存储器。 可选的, 存储器 1004还可以是至少一个位于远离 前述处理器 1001 的存储装置。 存储器 1004中存储一组程序代码, 且处理器 1001用于调用存储器中存储的程序代码, 用于执行以下操作:
获取发送设备通过天线端口发送来的至少一个数据流,所述数据流包括多 个新数据块, 所述新数据块包括多个元素, 其中, 所述新数据块是由所述发送 设备将数据流中的至少两个数据块的元素进行交织生成的,所述新数据块的个 数与进行交织的所述数据块的个数相同;
分别对各所述数据流中的多个所述新数据块的元素进行解交织处理。
可选的, 若新数据块是由所述发送设备将数据流中的数据块两两配对, 并 将配对的所述数据块的元素进行交织后成对生成的, 则处理器 1001分别对各 所述数据流中的多个所述新数据块的元素进行解交织的处理具体操作为:
分别在各所述数据流中,对成对生成的两个所述新数据块进行解交织处理。 另可选的, 若新数据块是由所述发送设备通过以下方法生成的: 提取数据 构成第一元素序列, 所述第一元素序列包括提取的所述数据块的元素; 改变所 述第一元素序列中的元素的排列顺序,构成第二元素序列; 按所述预设的顺序 从所述第二元素序列中依次获取所述新数据块,获取的所述新数据块的个数与 提取的所述数据块的个数相同。 则处理器 1001分别对各所述数据流中的多个 所述新数据块的元素进行解交织的处理具体操作为: 构成所述第二元素序列, 所述第二元素序列包括所述新数据块的元素; 将所述 第二元素序列中的元素的排列顺序还原为所述第一元素序列中的元素的排列 顺序; 按所述预设的顺序从所述第一元素序列中依次获取数据块, 获取的所述 数据块的个数与所述新数据块的个数相同。 本发明实施例还提出了一种计算机存储介质,所述计算机存储介质存储有 程序, 所述程序执行时包括本发明实施例结合图 2~图 6所描述的一种交织传 输的方法中的部分或全部的步骤。 本发明实施例通过分别在获取的各数据流中,将至少两个数据块的元素进 行交织生成新数据块, 其中, 数据流包括多个数据块, 数据块包括多个元素, 新数据块的个数与进行交织的数据块的个数相同,再分别将携带有新数据块的 各数据流映射到对应的信号空间层并通过天线端口发送到接收设备的方法,实 现了数据流交织传输, 可以提升无线传输的时间分集、频率分集以及空间分集 的增益, 提高无线传输的性能。
在本说明书的描述中, 参考术语"一个实施例"、 "一些实施例"、 "示例,,、 "具体示例"、 或"一些示例"等的描述意指结合该实施例或示例描述的具体特征、 结构、材料或者特点包含于本发明的至少一个实施例或示例中。在本说明书中, 对上述术语的示意性表述不必须针对的是相同的实施例或示例。 而且,描述的 具体特征、结构、材料或者特点可以在任一个或多个实施例或示例中以合适的 方式结合。 此外, 在不相互矛盾的情况下, 本领域的技术人员可以将本说明书 中描述的不同实施例或示例以及不同实施例或示例的特征进行结合和组合。
此外, 术语"第一"、 "第二,,仅用于描述目的, 而不能理解为指示或暗示相 对重要性或者隐含指明所指示的技术特征的数量。 由此, 限定有 "第一"、 "第 二,,的特征可以明示或者隐含地包括至少一个该特征。 在本发明的描述中, "多 个"的含义是至少两个, 例如两个, 三个等, 除非另有明确具体的限定。
流程图中或在此以其他方式描述的任何过程或方法描述可以被理解为,表 示包括一个或更多个用于实现特定逻辑功能或过程的步骤的可执行指令的代 码的模块、 片段或部分, 并且本发明的优选实施方式的范围包括另外的实现, 其中可以不按所示出或讨论的顺序,包括根据所涉及的功能按基本同时的方式 或按相反的顺序, 来执行功能, 这应被本发明的实施例所属技术领域的技术人 员所理解。
在流程图中表示或在此以其他方式描述的逻辑和 /或步骤, 例如, 可以被 认为是用于实现逻辑功能的可执行指令的定序列表,可以具体实现在任何计算 机可读介质中, 以供指令执行系统、 装置或设备(如基于计算机的系统、 包括 处理器的系统或其他可以从指令执行系统、装置或设备取指令并执行指令的系 统)使用, 或结合这些指令执行系统、 装置或设备而使用。 就本说明书而言, "计算机可读介质' '可以是任何可以包含、 存储、 通信、 传播或传输程序以供指 令执行系统、装置或设备或结合这些指令执行系统、装置或设备而使用的装置。 计算机可读介质的更具体的示例(非穷尽性列表)包括以下: 具有一个或多个 布线的电连接部(电子装置), 便携式计算机盘盒(磁装置), 随机存取存储器 ( RAM ), 只读存储器(ROM ), 可擦除可编辑只读存储器 (EPROM或闪速 存储器), 光纤装置, 以及便携式光盘只读存储器(CDROM )。 另外, 计算机 可读介质甚至可以是可在其上打印所述程序的纸或其他合适的介质,因为可以 例如通过对纸或其他介质进行光学扫描,接着进行编辑、解译或必要时以其他 合适方式进行处理来以电子方式获得所述程序,然后将其存储在计算机存储器 中。
应当理解,本发明的各部分可以用硬件、软件、固件或它们的组合来实现。 在上述实施方式中,多个步骤或方法可以用存储在存储器中且由合适的指令执 行系统执行的软件或固件来实现。 例如, 如果用硬件来实现, 和在另一实施方 式中一样, 可用本领域公知的下列技术中的任一项或他们的组合来实现: 具有 用于对数据信号实现逻辑功能的逻辑门电路的离散逻辑电路,具有合适的组合 逻辑门电路的专用集成电路,可编程门阵列( PGA ),现场可编程门阵列( FPGA ) 等。
本技术领域的普通技术人员可以理解实现上述实施例方法携带的全部或 部分步骤是可以通过程序来指令相关的硬件完成,所述的程序可以存储于一种 计算机可读存储介质中, 该程序在执行时, 包括方法实施例的步骤之一或其组 合。
此外,在本发明各个实施例中的各功能单元可以集成在一个处理模块中,也可 以是各个单元单独物理存在, 也可以两个或两个以上单元集成在一个模块中。 上述集成的模块既可以釆用硬件的形式实现,也可以釆用软件功能模块的形式 实现。所述集成的模块如果以软件功能模块的形式实现并作为独立的产品销售 或使用时, 也可以存储在一个计算机可读取存储介质中。
上述提到的存储介质可以是只读存储器,磁盘或光盘等。尽管上面已经示 出和描述了本发明的实施例, 可以理解的是, 上述实施例是示例性的, 不能理 解为对本发明的限制,本领域的普通技术人员在本发明的范围内可以对上述实 施例进行变化、 修改、 替换和变型。
以上所揭露的仅为本发明较佳实施例而已,当然不能以此来限定本发明之 权利范围,因此依本发明权利要求所作的等同变化,仍属本发明所涵盖的范围。

Claims

权 利 要 求
1、 一种交织传输的方法, 其特征在于, 所述方法包括:
获取调制后的至少一个数据流, 所述数据流包括多个数据块, 所述数据块 包括多个元素;
分别在各所述数据流中,将至少两个所述数据块的所述元素进行交织生成 新数据块, 所述新数据块的个数与进行交织的所述数据块的个数相同;
分别将携带有所述新数据块的各数据流映射到对应的信号空间层并通过 天线端口发送到接收设备。
2、 如权利要求 1所述的方法, 其特征在于, 所述将至少两个所述数据块 的所述元素进行交织生成新数据块, 包括:
若所述数据流包括偶数个所述数据块,则将所述数据流中的所述数据块两 两配对, 并将配对的所述数据块的所述元素进行交织生成两个新数据块; 若所述数据流包括奇数个所述数据块,则在所述数据流中除开任意一个所 述数据块后,将剩下的所述数据块两两配对, 并将配对的所述数据块的所述元 素进行交织生成两个新数据块。
3、 如权利要求 1所述的方法, 其特征在于, 所述将至少两个所述数据块 的所述元素进行交织生成新数据块, 包括:
提取所述数据流中的至少两个所述数据块,并将提取的所述数据块按预设 的顺序进行串行排列,构成第一元素序列, 所述第一元素序列包括提取的所述 数据块的元素;
改变所述第一元素序列中的元素的排列顺序, 构成第二元素序列; 按所述预设的顺序从所述第二元素序列中依次获取新数据块,所述新数据 块的个数与提取的所述数据块的个数相同。
4、 如权利要求 3所述的方法, 其特征在于, 所述第一元素序列包括串行 排列的多个分组, 所述分组包括至少一个所述元素;
所述改变所述第一元素序列中的元素的排列顺序,构成第二元素序列, 包 括:
改变所述第一元素序列中的所述分组的排列顺序,构成所述第二元素序列。
5、 如权利要求 3所述的方法, 其特征在于, 所述改变所述第一元素序列 中的元素的排列顺序, 构成第二元素序列, 包括:
将所述第一元素序列转换为元素矩阵;
对所述元素矩阵中的元素进行偏移处理;
将偏移处理后的所述元素矩阵转换为所述第二元素序列。
6、 如权利要求 5所述的方法, 其特征在于, 所述第一元素序列包括串行 排列的多个分组, 所述分组包括至少一个所述元素;
所述对所述元素矩阵中的元素进行偏移处理, 包括:
对所述元素矩阵中的所述分组进行偏移处理。
7、 如权利要求 6所述的方法, 其特征在于, 所述将提取的所述数据块按 预设的顺序进行串行排列, 构成第一元素序列之后, 还包括: 获取所述信号空 间层的个数 Nlayer、 所述数据块中的元素的个数 Ne以及所述分组中的元素的个 数 Nge;
所述将所述第一元素序列转换为元素矩阵, 包括: 根据公式
i = ( Ne, mod(idxin, Ne) = 0 且 = ceil idxin\ m _ lmod(idxin, Ne), otherwise Jm― V Ne / 将所述第一元素序列转换为元素矩阵, 其中所述 1(1 是所述第一元素序列中 的元素的序号, 所述(iin, jin )是所述元素矩阵中的元素的序号;
所述对所述元素矩阵中的所述分组进行偏移处理, 包括: 根据公式
_ Ί ( lin A ,
Joffset ― ceu I ~ I―丄
\1 ge /
对所述元素矩阵中的所述分组进行偏移处理, 其中所述 j。ffset是所述偏移处理 的偏移量;
所述将偏移处理后的所述元素矩阵转换为所述第二元素序列, 包括: 根据 公式
. , f iin + (Nlayer ― > mod(j in τ J offset, Nlayer ) = ◦ lQX〇ut 一 I r 、
Uin + (mod jin + joffset ' Nlayer ) - 1), otherwise
将偏移处理后的所述元素矩阵转换为所述第二元素序列, 其中所述 idx。ut是所 述第二元素序列中的元素的序号。
8、 一种交织传输的方法, 其特征在于, 所述方法包括:
获取发送设备通过天线端口发送来的至少一个数据流,所述数据流包括多 个新数据块, 所述新数据块包括多个元素, 其中, 所述新数据块是由所述发送 设备将数据流中的至少两个数据块的元素进行交织生成的,所述新数据块的个 数与进行交织的所述数据块的个数相同;
分别对各所述数据流中的多个所述新数据块的元素进行解交织处理。
9、 如权利要求 8所述的方法, 其特征在于, 所述新数据块是由所述发送 设备将数据流中的数据块两两配对,并将配对的所述数据块的元素进行交织后 成对生成的;
所述分别对各所述数据流中的多个所述新数据块的元素进行解交织处理, 包括:
分别在各所述数据流中,对成对生成的两个所述新数据块进行解交织处理。
10、 如权利要求 8所述的方法, 其特征在于, 所述新数据块是由所述发送 设备通过以下方法生成的: 提取数据流中的至少两个数据块, 并将提取的所述 数据块按预设的顺序进行串行排列,构成第一元素序列, 所述第一元素序列包 括提取的所述数据块的元素; 改变所述第一元素序列中的元素的排列顺序,构 成第二元素序列;按所述预设的顺序从所述第二元素序列中依次获取所述新数 据块, 获取的所述新数据块的个数与提取的所述数据块的个数相同;
所述分别对各所述数据流中的多个所述新数据块的元素进行解交织处理, 包括: 构成所述第二元素序列, 所述第二元素序列包括所述新数据块的元素; 将所述 第二元素序列中的元素的排列顺序还原为所述第一元素序列中的元素的排列 顺序; 按所述预设的顺序从所述第一元素序列中依次获取数据块, 获取的所述 数据块的个数与所述新数据块的个数相同。
11、 一种交织传输的发送设备, 其特征在于, 所述发送设备包括: 数据流获取模块, 用于获取调制后的至少一个数据流, 所述数据流包括多 个数据块, 所述数据块包括多个元素;
数据块交织模块, 用于分别在各所述数据流中,将至少两个所述数据块的 所述元素进行交织生成新数据块,所述新数据块的个数与进行交织的所述数据 块的个数相同;
数据流映射模块,用于分别将携带有所述新数据块的各数据流映射到对应 的信号空间层并通过天线端口发送到接收设备。
12、如权利要求 11所述的发送设备,其特征在于,所述数据块交织模块, 具体用于:
若所述数据流包括偶数个所述数据块,则将所述数据流中的所述数据块两 两配对, 并将配对的所述数据块的所述元素进行交织生成两个新数据块;
若所述数据流包括奇数个所述数据块,则在所述数据流中除开任意一个所 述数据块后,将剩下的所述数据块两两配对, 并将配对的所述数据块的所述元 素进行交织生成两个新数据块。
13、如权利要求 11所述的发送设备,其特征在于,所述数据块交织模块, 包括:
第一元素序列构成单元, 用于提取所述数据流中的至少两个所述数据块, 第一元素序列包括提取的所述数据块的元素;
第二元素序列构成单元,用于改变所述第一元素序列中的元素的排列顺序, 构成第二元素序列;
新数据块获取单元,用于按所述预设的顺序从所述第二元素序列中依次获 取新数据块, 所述新数据块的个数与提取的所述数据块的个数相同。
14、 如权利要求 13所述的发送设备, 其特征在于, 所述第一元素序列包 括串行排列的多个分组, 所述分组包括至少一个所述元素;
第二元素序列构成单元,具体用于改变所述第一元素序列中的所述分组的 排列顺序, 构成所述第二元素序列。
15、 如权利要求 13所述的发送设备, 其特征在于, 所述第二元素序列构 成单元, 包括:
第一转换子单元, 用于将所述第一元素序列转换为元素矩阵;
偏移处理子单元, 用于对所述元素矩阵中的元素进行偏移处理; 第二转换子单元,用于将偏移处理后的所述元素矩阵转换为所述第二元素 序列。
16、 如权利要求 15所述的发送设备, 其特征在于, 所述第一元素序列包 括串行排列的多个分组, 所述分组包括至少一个所述元素;
17、如权利要求 16所述的发送设备,其特征在于,所述数据块交织模块, 还用于获取所述信号空间层的个数 Nlayer、 所述数据块中的元素的个数 Ne以及 所述分组中的元素的个数 Nge;
所述第一转换子单元具体用于根据公式
i = ( Ne, mod(idxin, Ne) = 0 且 = idxin\ m _ lmod(idxin, Ne), otherwise ― V Ne / 将所述第一元素序列转换为元素矩阵, 其中所述 1(1 是所述第一元素序列中 的元素的序号, 所述(iin, jin )是所述元素矩阵中的元素的序号;
所述偏移处理子单元具体用于根据公式
_ Ί ( lin A ,
Joffset ― ceu I ~ I―丄
\1 ge /
对所述元素矩阵中的所述分组进行偏移处理, 其中所述 j。ffset是所述偏移处理 的偏移量;
所述第二转换子单元具体用于根据公式
. , f iin + (Nlayer ― > mod(j in τ J offset, Nlayer ) = ◦ lQX〇ut 一 I r 、
Uin + (mod jin + joffset ' Nlayer ) - 1), otherwise 将偏移处理后的所述元素矩阵转换为所述第二元素序列, 其中所述 idx。ut是所 述第二元素序列中的元素的序号。
18、 一种交织传输的接收设备, 其特征在于, 所述接收设备包括: 数据流获取模块,用于获取发送设备通过天线端口发送来的至少一个数据 流, 所述数据流包括多个新数据块, 所述新数据块包括多个元素, 其中, 所述 新数据块是由所述发送设备将数据流中的至少两个数据块的元素进行交织生 成的, 所述新数据块的个数与进行交织的所述数据块的个数相同;
数据块解交织模块,用于分别对各所述数据流中的多个所述新数据块的元 素进行解交织处理。
19、 如权利要求 18所述的接收设备, 其特征在于, 所述新数据块是由所 述发送设备将数据流中的数据块两两配对,并将配对的所述数据块的元素进行 交织后成对生成的;
所述数据块解交织模块, 具体用于分别在各所述数据流中,对成对生成的 两个所述新数据块进行解交织处理。
20、 如权利要求 18所述的接收设备, 其特征在于, 所述新数据块是由所 述发送设备通过以下方法生成的: 提取数据流中的至少两个数据块, 并将提取 的所述数据块按预设的顺序进行串行排列,构成第一元素序列, 所述第一元素 序列包括提取的所述数据块的元素;改变所述第一元素序列中的元素的排列顺 序,构成第二元素序列; 按所述预设的顺序从所述第二元素序列中依次获取所 述新数据块, 获取的所述新数据块的个数与提取的所述数据块的个数相同; 所述数据块解交织模块, 具体用于分别在各所述数据流中,将所述新数据 块按所述预设的顺序进行串行排列,构成所述第二元素序列, 所述第二元素序 列包括所述新数据块的元素;将所述第二元素序列中的元素的排列顺序还原为 所述第一元素序列中的元素的排列顺序;按所述预设的顺序从所述第一元素序 列中依次获取数据块, 获取的所述数据块的个数与所述新数据块的个数相同。
21、 一种交织传输的系统, 其特征在于, 所述系统包括如权利要求 1-7中 任一项所述的发送设备和如权利要求 8-10中任一项所述的接收设备, 其中: 所述发送设备用于获取调制后的至少一个数据流,所述数据流包括多个数 据块, 所述数据块包括多个元素; 分别在各所述数据流中, 将至少两个所述数 据块的所述元素进行交织生成新数据块,所述新数据块的个数与进行交织的所 述数据块的个数相同;分别将携带有所述新数据块的各数据流映射到对应的信 号空间层并通过天线端口发送到所述接收设备;
所述接收设备用于获取所述发送设备通过天线端口发送来的至少一个数 据流, 所述数据流包括多个新数据块, 所述新数据块包括多个元素, 其中, 所 述新数据块是由所述发送设备将数据流中的至少两个数据块的元素进行交织 生成的, 所述新数据块的个数与进行交织的所述数据块的个数相同; 分别对各 所述数据流中的多个所述新数据块的元素进行解交织处理。
22、一种计算机存储介质,其特征在于,所述计算机存储介质存储有程序, 所述程序执行时包括如权利要求 1-7中任一项所述的步骤。
23、一种计算机存储介质,其特征在于,所述计算机存储介质存储有程序, 所述程序执行时包括如权利要求 8-10中任一项所述的步骤。
24、 一种交织传输的发送设备, 其特征在于, 所述发送设备包括信号收发 器、 存储器以及处理器, 其中, 存储器中存储一组程序, 且处理器用于调用存 储器中存储的程序, 用于执行以下操作:
获取调制后的至少一个数据流, 所述数据流包括多个数据块, 所述数据块 包括多个元素;
分别在各所述数据流中,将至少两个所述数据块的所述元素进行交织生成 新数据块, 所述新数据块的个数与进行交织的所述数据块的个数相同;
分别将携带有所述新数据块的各数据流映射到对应的信号空间层并通过 天线端口发送到接收设备。
25、 一种交织传输的接收设备, 其特征在于, 所述接收设备包括信号收发 器、 存储器以及处理器, 其中, 存储器中存储一组程序, 且处理器用于调用存 储器中存储的程序, 用于执行以下操作:
获取发送设备通过天线端口发送来的至少一个数据流,所述数据流包括多 个新数据块, 所述新数据块包括多个元素, 其中, 所述新数据块是由所述发送 设备将数据流中的至少两个数据块的元素进行交织生成的,所述新数据块的个 数与进行交织的所述数据块的个数相同;
分别对各所述数据流中的多个所述新数据块的元素进行解交织处理。
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