WO2016070657A1 - Downlink non-orthogonal multiple access decoding method and device - Google Patents

Downlink non-orthogonal multiple access decoding method and device Download PDF

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WO2016070657A1
WO2016070657A1 PCT/CN2015/086059 CN2015086059W WO2016070657A1 WO 2016070657 A1 WO2016070657 A1 WO 2016070657A1 CN 2015086059 W CN2015086059 W CN 2015086059W WO 2016070657 A1 WO2016070657 A1 WO 2016070657A1
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user terminal
edge user
edge
information
symbol
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French (fr)
Chinese (zh)
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贺美芳
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中兴通讯股份有限公司
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/14—Relay systems
    • H04B7/15—Active relay systems
    • H04B7/204—Multiple access

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  • This document relates to, but is not limited to, a mobile communication system, and in particular, to a decoding method and apparatus for downlink non-orthogonal multiple access.
  • the orthogonal multiple access design is reasonable.
  • NOMA non-orthogonal multiple access
  • SIC serial interference cancellation
  • ML Maximum Likelihood Decode
  • two terminals are taken as an example, one is a far-end user terminal UE1 (also referred to as a remote user terminal or an edge user terminal), and the other is a near-end user terminal UE2 (also referred to as a central user terminal).
  • the downstream throughput is shown in Table 1 below.
  • NOMA downlink broadcast has three characteristics: although the spectrum efficiency of the far-end user terminal can be maximized, it is still relatively low, such as 0.9bps here; the near-end user terminal needs to do SIC (code-block-level SIC or symbol-level SIC) The symbols of the two user terminals that are superimposed together, the power of the near-end user terminal is small, and the power of the far-end user terminal is large.
  • SIC code-block-level SIC or symbol-level SIC
  • the code block level SIC is the SIC of the near station user terminal demodulating the edge user terminal, FEC (Forward Error Correction) decoding, solving the original information of the edge user terminal, and then coding the modulation weight channel and subtracting the The original information of the edge user terminal.
  • Symbol level SIC is used for center The terminal terminal only needs to hardly judge the symbol of the edge user terminal and weight the channel minus the symbol of the edge user terminal.
  • the near-end user terminal needs to do SIC, the original information of the edge user terminal solved by the code block level SIC, or the symbol of the edge user terminal hardly judged by the symbol level SIC, is used as the weighted channel subtraction.
  • the embodiment of the invention provides a decoding method and device for downlink non-orthogonal multiple access, so as to solve the technical problem of how to enhance the information acquisition of the edge user terminal.
  • the embodiment of the invention provides a decoding method for downlink non-orthogonal multiple access, which includes:
  • the code block level serial interference cancellation SIC of the near station user terminal solves the original information of the edge user terminal or the symbol level SIC of the near station user terminal hardly judges the symbol of the edge user terminal;
  • the near-end user terminal forwards the original information of the edge user terminal that is solved or the symbol of the edge user terminal that is hardly determined to the edge user terminal.
  • the predetermined condition includes any one of the following:
  • the near-end user terminal solves the original information of the edge user terminal or hardly judges the symbol of the edge user terminal;
  • the near-end user terminal receives an indication that the network side forwards the edge user terminal information.
  • the near-end user terminal receives an indication that the network side forwards the edge user terminal information, including:
  • the near-end user terminal receives the forwarding edge user terminal information indication sent by the network side when the number of decoding failures of the edge user terminal exceeds a specified threshold.
  • the near-end user terminal receives an indication that the network side forwards the edge user terminal information, including:
  • the second near-end user terminal After the second near-end user terminal receives the indication of forwarding the edge user terminal information, performing the step of decoding the original information of the edge user terminal or hardly determining the symbol of the edge user terminal, and the solution will be solved
  • the original information of the edge user terminal or the hard-resolved symbol of the edge user terminal is forwarded to the edge user terminal.
  • the embodiment of the present invention further provides a decoding apparatus for downlink non-orthogonal multiple access, which is disposed in a near station user terminal; the apparatus includes:
  • the serial interference cancellation SIC module is configured to solve the original information of the edge user terminal or hardly determine the symbol of the edge user terminal;
  • a forwarding module configured to: when the predetermined condition is met, forward the original information of the edge user terminal that is solved or the symbol of the edge user terminal that is hardly determined to the edge user terminal.
  • the device further includes a receiving module
  • the predetermined condition includes any one of the following:
  • the SIC module solves the original information of the edge user terminal or hardly judges the symbol of the edge user terminal;
  • the receiving module receives an indication that the network side forwards the edge user terminal information.
  • the receiving module receives the indication that the network side forwards the edge user terminal information, including:
  • the receiving module receives the forwarding edge user terminal information indication that is sent by the network side because the number of decoding failures of the edge user terminal exceeds a specified threshold.
  • the receiving module receives the indication that the network side forwards the edge user terminal information, including:
  • the receiving module is further configured to, after receiving the message of modifying the near-end user terminal to be paired with the edge user terminal, and forwarding the edge user terminal information, starting the SIC module and the forwarding module.
  • the embodiment of the invention further provides a computer storage medium, wherein the computer storage medium stores computer executable instructions, and the computer executable instructions are used to execute the above method.
  • the embodiment of the present invention fully utilizes the symbol of the edge user terminal that is hardly judged by the original information/symbol level SIC of the edge user terminal solved by the code block level SIC, and enhances the information acquisition of the edge user terminal.
  • FIG. 1 is a schematic diagram of a near station/far station user terminal
  • FIG. 2 is a schematic diagram of a decoding method when downlink non-orthogonal multiple access is performed according to an embodiment of the present invention
  • FIG. 3 is a schematic diagram of a decoding apparatus for downlink non-orthogonal multiple access according to an embodiment of the present invention
  • FIG. 6 is a schematic flow chart of the third example in the first embodiment
  • FIG. 7 is a schematic flow chart of the fourth example in the first embodiment.
  • the first embodiment of the present invention provides a decoding method for downlink non-orthogonal multiple access, as shown in FIG. 2, the method includes:
  • the code block level SIC of the near station user terminal solves the original information of the edge user terminal or the symbol level SIC of the near station user terminal hardly judges the symbol of the edge user terminal;
  • S2 The near-end user terminal forwards the original information of the solved edge user terminal or the hard-resolved edge user terminal symbol to the edge user terminal when the predetermined condition is satisfied.
  • the predetermined condition includes any one of the following:
  • the near-end user terminal solves the original information of the edge user terminal or hardly judges the symbol of the edge user terminal;
  • the near-end user terminal receives an indication that the network side forwards the edge user terminal information.
  • the indication that the near-end user terminal receives the information of forwarding the edge user terminal on the network side may include:
  • the near-end user terminal receives the forwarding edge user terminal information indication that is sent by the network side because the number of decoding failures of the edge user terminal exceeds a specified threshold.
  • the indication that the near-end user terminal receives the information of forwarding the edge user terminal on the network side may include:
  • the network side Receiving, by the second near-end user terminal, the network side, when the number of decoding failures of the edge user terminal exceeds a specified threshold, pairing the edge user terminal with the first near-end user terminal, and changing to the second near-end user terminal After pairing, the forwarding edge user terminal information sent is indicated; At this time, the steps S1, S2 are performed by the second near station user terminal.
  • the first scheme is the downlink NOMA, and the near-end user terminal directly forwards the original information of the edge user terminal that is solved or the symbol direction of the hard-trimmed edge user terminal to the edge user terminal.
  • the second scheme is the downlink NOMA.
  • the edge user terminal sends a request to the near-end user terminal, and the near-end user terminal forwards the original information of the edge user terminal that is solved or the symbol direction of the hard-trimmed edge user terminal to the edge user terminal.
  • the third scheme is the downlink NOMA.
  • the network side knows that the edge user terminal decodes the information more frequently, and starts the near-end user terminal to forward the edge user terminal information, and the near-end user terminal then forwards the original information of the solved edge user terminal or hardly judges.
  • the symbol of the edge user terminal is given to the edge user terminal.
  • the fourth scheme is the downlink NOMA.
  • the network side knows that the edge user terminal decodes the information more frequently, re-pairs, and starts the near-end user terminal to forward the edge user terminal information, and the near-end user terminal then extracts the original information of the edge user terminal or The symbolic direction of the hard-triggered edge user terminal is forwarded to the edge user terminal.
  • the embodiment of the invention further provides a computer storage medium, wherein the computer storage medium stores computer executable instructions, and the computer executable instructions are used to execute the above method.
  • Embodiment 2 As shown in FIG. 3, a decoding apparatus for downlink non-orthogonal multiple access is set in a near station user terminal; the apparatus includes:
  • the serial interference cancellation SIC module is configured to solve the original information of the edge user terminal (if it is a code block level SIC) or to hardly determine the symbol of the edge user terminal (if it is a symbol level SIC);
  • a forwarding module configured to: when the predetermined condition is met, forward the original information of the edge user terminal that is solved or the symbol of the edge user terminal that is hardly determined to the edge user terminal.
  • the apparatus further includes a receiving module, and the predetermined condition includes any one of the following:
  • the SIC module solves the original information of the edge user terminal or hardly judges the symbol of the edge user terminal;
  • the receiving module receives an indication that the network side forwards the edge user terminal information.
  • the receiving module is configured to receive the forwarding edge user terminal information indication that is sent by the network side to learn that the number of decoding failures of the edge user terminal exceeds a specified threshold.
  • the receiving module is configured to receive, by the network side, a message that the near-end user terminal is modified to be paired with the edge user terminal.
  • the receiving module is configured to start the SIC module and the forwarding module after receiving a message indicating that the near-end user terminal is paired with the edge user terminal and forwarding the edge user terminal information.
  • the downlink NOMA, the near-end user terminal uses 16QAM modulation, and the edge user terminal uses BPSK modulation (1+j form), as shown in FIG.
  • the near-station user terminal code block level SIC demodulates and FEC decodes the edge user terminal, and solves the original information of the edge user terminal;
  • the near-end user terminal directly forwards the original information of the solved edge user terminal to the edge user terminal by using air interface signaling.
  • the edge user terminal uses QPSK modulation
  • the near-end user terminal uses QPSK or higher
  • the downlink NOMA the edge user terminal sends a request to the near-end user terminal, and the near-end user terminal redirects the hard-identified edge user terminal. Forward to the edge user terminal, as shown in Figure 5.
  • the near-end user terminal SIC hardly judges the symbol of the edge user terminal
  • the edge user terminal requests its own information to the near station user terminal by using air interface signaling.
  • the near-end user terminal sends the symbol of the edge user terminal to the edge user terminal by using air interface signaling.
  • the network side obtains the edge user terminal to decode the information more frequently.
  • the near-end user terminal is activated to forward the edge user terminal information, and the near-end user terminal then forwards the original information of the solved edge user terminal to the edge user terminal.
  • the edge user terminal sends a decoding failure message to the network side.
  • the network side determines that the number of decoding failures of the edge user terminal exceeds a specified threshold.
  • the network side indicates that the near-end user terminal forwards the edge user terminal information.
  • the near-end user terminal sends the original information of the edge user terminal to the edge user terminal by using air interface signaling.
  • the network side obtains the edge user terminal to decode the information failure times. More, re-pairing, and initiating the near-end user terminal to forward the edge user information, and the near-end user terminal then forwards the original information of the solved edge user terminal or the hard-identified symbol direction of the edge user terminal to the edge user terminal.
  • the edge user terminal sends decoding failure information to the network side.
  • the network side determines that the number of decoding failures of the edge user terminal exceeds a specified threshold; the network side re-pairs, and pairs the second near-end user terminal and the edge user terminal;
  • the network side informs the second near station user terminal to forward the edge user terminal information.
  • the code block level SIC of the second near station user terminal demodulates and FEC decodes the edge user terminal, and extracts original information of the edge user terminal.
  • the second near-end user terminal forwards the original information of the solved edge user terminal to the edge user terminal by using air interface signaling.
  • the computer program can be implemented in a computer readable storage medium, the computer program being executed on a corresponding hardware platform (such as a system, device, device, device, etc.), when executed, including One or a combination of the steps of the method embodiments.
  • all or part of the steps of the above embodiments may also be implemented by using an integrated circuit. These steps may be separately fabricated into individual integrated circuit modules, or multiple modules or steps may be fabricated into a single integrated circuit module. achieve.
  • the devices/function modules/functional units in the above embodiments may be implemented by a general-purpose computing device, which may be centralized on a single computing device or distributed over a network of multiple computing devices.
  • each device/function module/functional unit in the above embodiment When each device/function module/functional unit in the above embodiment is implemented in the form of a software function module and sold or used as a stand-alone product, it can be stored in a computer readable storage medium.
  • the above mentioned computer readable storage medium may be a read only memory, a magnetic disk or an optical disk or the like.
  • the above technical solution enhances information acquisition of the edge user terminal.

Abstract

A downlink non-orthogonal multiple access (NOMA) decoding method and device, the method comprising: a code block-level successive interference cancellation (SIC) of a user terminal adjacent to a base station decodes original information of a user terminal at an edge of the base station, or a symbol-level SIC of the user terminal adjacent to the base station hard-decides a symbol of the user terminal at the edge of the base station; if a preset condition is satisfied, the user terminal adjacent to the base station forwards the decoded original information or the hard-decided symbol of the user terminal at the edge of the base station to the user terminal at the edge of the base station.

Description

一种下行非正交多址接入时的解码方法及装置Decoding method and device for downlink non-orthogonal multiple access 技术领域Technical field
本文涉及但不限于移动通信系统，尤其涉及一种下行非正交多址接入时的解码方法及装置。This document relates to, but is not limited to, a mobile communication system, and in particular, to a decoding method and apparatus for downlink non-orthogonal multiple access.
背景技术Background technique
在一般的接入分组网络中，为了达到良好的系统吞吐性能，并且同时保持接收机低成本化，正交的多址接入设计方案是比较合理的。然而，为了进一步的提高频谱效率，需要进一步克服或者缓解小区内干扰和小区间干扰。相关技术中提出的新型多址接入复用方案，即非正交多址接入(Non-orthogonal multiple access，简称NOMA)，或非正交多址复用，需要结合串行干扰消除(Successive interference cancellation，简称SIC)或类最大似然解调(Maximum LikelihoodDecode，ML)才能取得容量极限。In a general access packet network, in order to achieve good system throughput performance while keeping the receiver low cost, the orthogonal multiple access design is reasonable. However, in order to further improve the spectral efficiency, it is necessary to further overcome or mitigate intra-cell interference and inter-cell interference. The novel multiple access multiplexing scheme proposed in the related art, that is, non-orthogonal multiple access (NOMA), or non-orthogonal multiple access multiplexing, needs to be combined with serial interference cancellation (Successive The interference cancellation (SIC) or the Maximum Likelihood Decode (ML) can achieve the capacity limit.
如图1所示，以两个终端为例，一个是远站用户终端UE1(也称为远端用户终端或边缘用户终端)，一个是近站用户终端UE2(也称为中心用户终端)，下行吞吐量如下表一所示。As shown in FIG. 1 , two terminals are taken as an example, one is a far-end user terminal UE1 (also referred to as a remote user terminal or an edge user terminal), and the other is a near-end user terminal UE2 (also referred to as a central user terminal). The downstream throughput is shown in Table 1 below.
表一下行吞吐量Table line throughput
下行吞吐量Downstream throughput UE2UE2 UE1UE1
正交接入Orthogonal access 3b/s/Hz3b/s/Hz 0.64b/s/Hz0.64b/s/Hz
非正交接入Non-orthogonal access 3b/s/Hz3b/s/Hz 0.9b/s/Hz0.9b/s/Hz
NOMA下行广播有3个特点：远站用户终端的频谱效率虽然能尽量最大化，但相对还是不高，如这里的0.9bps；近站用户终端需要做SIC(码块级SIC或者符号级SIC)；叠加在一起的两个用户终端的符号，近站用户终端的功率较小，远站用户终端的功率较大。NOMA downlink broadcast has three characteristics: although the spectrum efficiency of the far-end user terminal can be maximized, it is still relatively low, such as 0.9bps here; the near-end user terminal needs to do SIC (code-block-level SIC or symbol-level SIC) The symbols of the two user terminals that are superimposed together, the power of the near-end user terminal is small, and the power of the far-end user terminal is large.
码块级SIC是近站用户终端的SIC对边缘用户终端解调、FEC(Forward Error Correction，前向纠错)译码，解出边缘用户终端的原始信息，然后编码调制加权信道并减去所述边缘用户终端的原始信息。符号级的SIC是中心用 户终端只要把边缘用户终端的符号硬判并加权信道减去所述边缘用户终端的符号。近站用户终端需要做SIC，码块级SIC解出来的边缘用户终端的原始信息，还是符号级SIC硬判出来的边缘用户终端的符号，都被用作加权信道减去。The code block level SIC is the SIC of the near station user terminal demodulating the edge user terminal, FEC (Forward Error Correction) decoding, solving the original information of the edge user terminal, and then coding the modulation weight channel and subtracting the The original information of the edge user terminal. Symbol level SIC is used for center The terminal terminal only needs to hardly judge the symbol of the edge user terminal and weight the channel minus the symbol of the edge user terminal. The near-end user terminal needs to do SIC, the original information of the edge user terminal solved by the code block level SIC, or the symbol of the edge user terminal hardly judged by the symbol level SIC, is used as the weighted channel subtraction.
发明内容Summary of the invention
以下是对本文详细描述的主题的概述。本概述并非是为了限制权利要求的保护范围。(The following is a brief summary of subject matter that is described in greater detail herein.This summary is not intended to be limiting as to the scope of the claims.)The following is an overview of the topics detailed in this document. This Summary is not intended to limit the scope of the claims. (The following is a brief summary of subject matter that is described in greater detail herein. This summary is not intended to be limiting as to the scope of the claims.)
本发明实施例提供了一种下行非正交多址接入时的解码方法及装置，以解决如何增强边缘用户终端的信息获取的技术问题。The embodiment of the invention provides a decoding method and device for downlink non-orthogonal multiple access, so as to solve the technical problem of how to enhance the information acquisition of the edge user terminal.
本发明实施例提供了一种下行非正交多址接入时的解码方法，包括：The embodiment of the invention provides a decoding method for downlink non-orthogonal multiple access, which includes:
近站用户终端的码块级串行干扰消除SIC解出边缘用户终端的原始信息或近站用户终端的符号级SIC硬判出边缘用户终端的符号；The code block level serial interference cancellation SIC of the near station user terminal solves the original information of the edge user terminal or the symbol level SIC of the near station user terminal hardly judges the symbol of the edge user terminal;
所述近站用户终端在预定条件满足时，将解出的所述边缘用户终端的原始信息或硬判出的所述边缘用户终端的符号转发给所述边缘用户终端。When the predetermined condition is met, the near-end user terminal forwards the original information of the edge user terminal that is solved or the symbol of the edge user terminal that is hardly determined to the edge user terminal.
可选地，所述预定条件包括以下任一种：Optionally, the predetermined condition includes any one of the following:
所述近站用户终端解出边缘用户终端的原始信息或硬判出边缘用户终端的符号；The near-end user terminal solves the original information of the edge user terminal or hardly judges the symbol of the edge user terminal;
所述近站用户终端收到边缘用户终端的请求；Receiving, by the near station user terminal, a request of an edge user terminal;
所述近站用户终端收到网络侧转发边缘用户终端信息的指示。The near-end user terminal receives an indication that the network side forwards the edge user terminal information.
可选地，所述近站用户终端收到网络侧转发边缘用户终端信息的指示，包括：Optionally, the near-end user terminal receives an indication that the network side forwards the edge user terminal information, including:
所述近站用户终端收到所述网络侧因获知边缘用户终端解码失败次数超过指定阈值时发送的转发边缘用户终端信息指示。 The near-end user terminal receives the forwarding edge user terminal information indication sent by the network side when the number of decoding failures of the edge user terminal exceeds a specified threshold.
可选地，所述近站用户终端收到网络侧转发边缘用户终端信息的指示，包括：Optionally, the near-end user terminal receives an indication that the network side forwards the edge user terminal information, including:
第二近站用户终端收到所述网络侧当获知边缘用户终端解码失败次数超过指定阈值时，将所述边缘用户终端由与第一近站用户终端配对，改成和第二近站用户终端配对后，发送的转发边缘用户终端信息指示；Receiving, by the second near-end user terminal, the network side, when the number of decoding failures of the edge user terminal exceeds a specified threshold, pairing the edge user terminal with the first near-end user terminal, and changing to the second near-end user terminal After pairing, the sent forwarding edge user terminal information indication;
所述第二近站用户终端收到所述转发边缘用户终端信息的指示后，执行所述解出边缘用户终端的原始信息或硬判出边缘用户终端的符号的步骤，以及所述将解出的所述边缘用户终端的原始信息或硬判出的所述边缘用户终端的符号转发给所述边缘用户终端的步骤。After the second near-end user terminal receives the indication of forwarding the edge user terminal information, performing the step of decoding the original information of the edge user terminal or hardly determining the symbol of the edge user terminal, and the solution will be solved The original information of the edge user terminal or the hard-resolved symbol of the edge user terminal is forwarded to the edge user terminal.
本发明实施例还提供了一种下行非正交多址接入时的解码装置，设置于近站用户终端中；所述装置包括：The embodiment of the present invention further provides a decoding apparatus for downlink non-orthogonal multiple access, which is disposed in a near station user terminal; the apparatus includes:
串行干扰消除SIC模块，设置为解出边缘用户终端的原始信息或硬判出边缘用户终端的符号；The serial interference cancellation SIC module is configured to solve the original information of the edge user terminal or hardly determine the symbol of the edge user terminal;
转发模块，设置为当预定条件满足时，将解出的所述边缘用户终端的原始信息或硬判出的所述边缘用户终端的符号转发给所述边缘用户终端。And a forwarding module, configured to: when the predetermined condition is met, forward the original information of the edge user terminal that is solved or the symbol of the edge user terminal that is hardly determined to the edge user terminal.
可选地，所述装置还包括接收模块；Optionally, the device further includes a receiving module;
所述预定条件包括以下任一种：The predetermined condition includes any one of the following:
所述SIC模块解出边缘用户终端的原始信息或硬判出边缘用户终端的符号；The SIC module solves the original information of the edge user terminal or hardly judges the symbol of the edge user terminal;
所述接收模块收到边缘用户终端的请求；Receiving, by the receiving module, a request of an edge user terminal;
所述接收模块收到网络侧转发边缘用户终端信息的指示。The receiving module receives an indication that the network side forwards the edge user terminal information.
可选地，所述接收模块收到网络侧转发边缘用户终端信息的指示，包括：Optionally, the receiving module receives the indication that the network side forwards the edge user terminal information, including:
所述接收模块收到所述网络侧因获知边缘用户终端解码失败次数超过指定阈值发送的转发边缘用户终端信息指示。The receiving module receives the forwarding edge user terminal information indication that is sent by the network side because the number of decoding failures of the edge user terminal exceeds a specified threshold.
可选地，所述接收模块收到网络侧转发边缘用户终端信息的指示，包括： Optionally, the receiving module receives the indication that the network side forwards the edge user terminal information, including:
所述接收模块接收所述网络侧指示近站用户终端修改为与边缘用户终端配对的消息；Receiving, by the receiving module, a message that the network side indicates that the near-end user terminal is modified to be paired with the edge user terminal;
所述接收模块还设置为当接收到将所述近站用户终端修改为与边缘用户终端配对的消息，及转发边缘用户终端信息的指示后，启动所述SIC模块和所述转发模块。The receiving module is further configured to, after receiving the message of modifying the near-end user terminal to be paired with the edge user terminal, and forwarding the edge user terminal information, starting the SIC module and the forwarding module.
本发明实施例还提供了一种计算机存储介质，所述计算机存储介质中存储有计算机可执行指令，所述计算机可执行指令用于执行上述的方法。The embodiment of the invention further provides a computer storage medium, wherein the computer storage medium stores computer executable instructions, and the computer executable instructions are used to execute the above method.
本发明实施例充分利用码块级SIC解出来的边缘用户终端的原始信息/符号级SIC硬判出来的边缘用户终端的符号,增强了边缘用户终端的信息获取。The embodiment of the present invention fully utilizes the symbol of the edge user terminal that is hardly judged by the original information/symbol level SIC of the edge user terminal solved by the code block level SIC, and enhances the information acquisition of the edge user terminal.
在阅读并理解了附图和详细描述后，可以明白其他方面。(Other aspects will be appreciated upon reading and understanding the attached figures and detailed description)Other aspects will be apparent upon reading and understanding the drawings and detailed description. (Other aspects will be appreciated upon reading and understanding the attached figures and detailed description)
附图概述BRIEF abstract
图1为近站/远站用户终端示意图；1 is a schematic diagram of a near station/far station user terminal;
图2为本发明实施例一种下行非正交多址接入时的解码方法示意图；2 is a schematic diagram of a decoding method when downlink non-orthogonal multiple access is performed according to an embodiment of the present invention;
图3为本发明实施例一种下行非正交多址接入时的解码装置结果示意图；FIG. 3 is a schematic diagram of a decoding apparatus for downlink non-orthogonal multiple access according to an embodiment of the present invention; FIG.
图4为实施例一中例一的流程示意图；4 is a schematic flow chart of the first example in the first embodiment;
图5为实施例一中例二的流程示意图；5 is a schematic flow chart of the second example in the first embodiment;
图6为实施例一中例三的流程示意图；6 is a schematic flow chart of the third example in the first embodiment;
图7为实施例一中例四的流程示意图。FIG. 7 is a schematic flow chart of the fourth example in the first embodiment.
本发明的较佳实施方式Preferred embodiment of the invention
下面将结合附图及实施例对本申请的技术方案进行更详细的说明。 The technical solutions of the present application will be described in more detail below with reference to the accompanying drawings and embodiments.
需要说明的是，如果不冲突，本发明实施例以及实施例中的各个特征可以相互结合，均在本申请的保护范围之内。另外，虽然在流程图中示出了逻辑顺序，但是在某些情况下，可以以不同于此处的顺序执行所示出或描述的步骤。It should be noted that, if not conflicting, the embodiments of the present invention and the various features in the embodiments may be combined with each other, and are all within the protection scope of the present application. Additionally, although logical sequences are shown in the flowcharts, in some cases the steps shown or described may be performed in a different order than the ones described herein.
为了进一步增强边缘用户终端的信息获取，本发明实施例一提出了一种下行非正交多址接入时的解码方法，如图2所示，该方法包括：In order to further enhance the information acquisition of the edge user terminal, the first embodiment of the present invention provides a decoding method for downlink non-orthogonal multiple access, as shown in FIG. 2, the method includes:
S1、近站用户终端的码块级SIC解出边缘用户终端的原始信息或近站用户终端的符号级SIC硬判出边缘用户终端的符号；S1, the code block level SIC of the near station user terminal solves the original information of the edge user terminal or the symbol level SIC of the near station user terminal hardly judges the symbol of the edge user terminal;
S2、所述近站用户终端在预定条件满足时，将解出的边缘用户终端的原始信息或硬判出的边缘用户终端的符号转发给边缘用户终端。S2: The near-end user terminal forwards the original information of the solved edge user terminal or the hard-resolved edge user terminal symbol to the edge user terminal when the predetermined condition is satisfied.
本实施例中，所述预定条件包括以下任一种：In this embodiment, the predetermined condition includes any one of the following:
所述近站用户终端解出边缘用户终端的原始信息或硬判出边缘用户终端的符号；The near-end user terminal solves the original information of the edge user terminal or hardly judges the symbol of the edge user terminal;
所述近站用户终端收到边缘用户终端的请求；Receiving, by the near station user terminal, a request of an edge user terminal;
所述近站用户终端收到网络侧转发边缘用户终端信息的指示。The near-end user terminal receives an indication that the network side forwards the edge user terminal information.
本实施例的一种实施方式中，所述近站用户终端收到网络侧转发边缘用户终端信息的指示可以包括：In an implementation manner of this embodiment, the indication that the near-end user terminal receives the information of forwarding the edge user terminal on the network side may include:
所述近站用户终端收到所述网络侧因获知边缘用户终端解码失败次数超过指定阈值发送的转发边缘用户终端信息指示。The near-end user terminal receives the forwarding edge user terminal information indication that is sent by the network side because the number of decoding failures of the edge user terminal exceeds a specified threshold.
本实施例的一种实施方式中，所述近站用户终端收到网络侧转发边缘用户终端信息的指示可以包括：In an implementation manner of this embodiment, the indication that the near-end user terminal receives the information of forwarding the edge user terminal on the network side may include:
第二近站用户终端收到所述网络侧当获知边缘用户终端解码失败次数超过指定阈值时，将所述边缘用户终端由与第一近站用户终端配对，改成和第二近站用户终端配对后，发送的转发边缘用户终端信息指示；。此时，，所述步骤S1、S2由所述第二近站用户终端执行。 Receiving, by the second near-end user terminal, the network side, when the number of decoding failures of the edge user terminal exceeds a specified threshold, pairing the edge user terminal with the first near-end user terminal, and changing to the second near-end user terminal After pairing, the forwarding edge user terminal information sent is indicated; At this time, the steps S1, S2 are performed by the second near station user terminal.
实施例一的所述方法包括以下几种典型的实现方案：The method of the first embodiment includes the following typical implementations:
方案一是下行NOMA，近站用户终端直接将解出来的边缘用户终端的原始信息或者硬判出来的边缘用户终端的符号定向转发给边缘用户终端。The first scheme is the downlink NOMA, and the near-end user terminal directly forwards the original information of the edge user terminal that is solved or the symbol direction of the hard-trimmed edge user terminal to the edge user terminal.
方案二是下行NOMA，边缘用户终端向近站用户终端发一个请求，近站用户终端再将解出来的边缘用户终端的原始信息或者硬判出来的边缘用户终端的符号定向转发给边缘用户终端。The second scheme is the downlink NOMA. The edge user terminal sends a request to the near-end user terminal, and the near-end user terminal forwards the original information of the edge user terminal that is solved or the symbol direction of the hard-trimmed edge user terminal to the edge user terminal.
方案三是下行NOMA，网络侧获知边缘用户终端解码信息失败次数较多，启动近站用户终端转发边缘用户终端信息，近站用户终端然后转发解出来的边缘用户终端的原始信息或者硬判出来的边缘用户终端的符号给边缘用户终端。The third scheme is the downlink NOMA. The network side knows that the edge user terminal decodes the information more frequently, and starts the near-end user terminal to forward the edge user terminal information, and the near-end user terminal then forwards the original information of the solved edge user terminal or hardly judges. The symbol of the edge user terminal is given to the edge user terminal.
方案四是下行NOMA，网络侧获知边缘用户终端解码信息失败次数较多，重新配对，且启动近站用户终端转发边缘用户终端信息，近站用户终端然后将解出来的边缘用户终端的原始信息或者硬判出来的边缘用户终端的符号定向转发给边缘用户终端。The fourth scheme is the downlink NOMA. The network side knows that the edge user terminal decodes the information more frequently, re-pairs, and starts the near-end user terminal to forward the edge user terminal information, and the near-end user terminal then extracts the original information of the edge user terminal or The symbolic direction of the hard-triggered edge user terminal is forwarded to the edge user terminal.
本发明实施例还提供了一种计算机存储介质，所述计算机存储介质中存储有计算机可执行指令，所述计算机可执行指令用于执行上述的方法。The embodiment of the invention further provides a computer storage medium, wherein the computer storage medium stores computer executable instructions, and the computer executable instructions are used to execute the above method.
实施例二、如图3所示，一种下行非正交多址接入时的解码装置，设置于近站用户终端中；所述装置包括：Embodiment 2 As shown in FIG. 3, a decoding apparatus for downlink non-orthogonal multiple access is set in a near station user terminal; the apparatus includes:
串行干扰消除SIC模块，设置为解出边缘用户终端的原始信息(如果为码块级SIC)或硬判出边缘用户终端的符号(如果为符号级SIC)；The serial interference cancellation SIC module is configured to solve the original information of the edge user terminal (if it is a code block level SIC) or to hardly determine the symbol of the edge user terminal (if it is a symbol level SIC);
转发模块，设置为当预定条件满足时，将解出的所述边缘用户终端的原始信息或硬判出的所述边缘用户终端的符号转发给所述边缘用户终端。And a forwarding module, configured to: when the predetermined condition is met, forward the original information of the edge user terminal that is solved or the symbol of the edge user terminal that is hardly determined to the edge user terminal.
本实施例的一种实施方式中，所述装置还包括接收模块，所述预定条件包括以下任一种：In an embodiment of this embodiment, the apparatus further includes a receiving module, and the predetermined condition includes any one of the following:
所述SIC模块解出边缘用户终端的原始信息或硬判出边缘用户终端的符号；The SIC module solves the original information of the edge user terminal or hardly judges the symbol of the edge user terminal;
所述接收模块收到边缘用户终端的请求； Receiving, by the receiving module, a request of an edge user terminal;
所述接收模块收到网络侧转发边缘用户终端信息的指示。The receiving module receives an indication that the network side forwards the edge user terminal information.
可选的，接收模块，是设置为收到所述网络侧因获知边缘用户终端解码失败次数超过指定阈值发送的转发边缘用户终端信息指示。Optionally, the receiving module is configured to receive the forwarding edge user terminal information indication that is sent by the network side to learn that the number of decoding failures of the edge user terminal exceeds a specified threshold.
可选的，所述接收模块是设置为接收所述网络侧指示近站用户终端修改为与边缘用户终端配对的消息。Optionally, the receiving module is configured to receive, by the network side, a message that the near-end user terminal is modified to be paired with the edge user terminal.
本实施方式中，所述接收模块设置为当接收到指示近站用户终端与边缘用户终端配对的消息，及转发边缘用户终端信息的指示后，启动所述SIC模块和所述转发模块。In this embodiment, the receiving module is configured to start the SIC module and the forwarding module after receiving a message indicating that the near-end user terminal is paired with the edge user terminal and forwarding the edge user terminal information.
下面用几个具体的例子说明本发明上述实施例。The above embodiments of the present invention will be described below with a few specific examples.
例一，下行NOMA，近站用户终端用16QAM调制，边缘用户终端用BPSK调制(1+j这种形式)，如图4所示。For example, the downlink NOMA, the near-end user terminal uses 16QAM modulation, and the edge user terminal uses BPSK modulation (1+j form), as shown in FIG.
101、近站用户终端码块级SIC对边缘用户终端解调、FEC译码，解出边缘用户终端的原始信息；101. The near-station user terminal code block level SIC demodulates and FEC decodes the edge user terminal, and solves the original information of the edge user terminal;
102、近站用户终端直接通过空口信令将解出来的边缘用户终端的原始信息转发给边缘用户终端。102. The near-end user terminal directly forwards the original information of the solved edge user terminal to the edge user terminal by using air interface signaling.
例二，如边缘用户终端用QPSK调制，近站用户终端用QPSK以上，下行NOMA，边缘用户终端向近站用户终端发个请求，近站用户终端再将硬判出来的边缘用户终端的符号定向转发给边缘用户终端，如图5所示。For example, if the edge user terminal uses QPSK modulation, the near-end user terminal uses QPSK or higher, and the downlink NOMA, the edge user terminal sends a request to the near-end user terminal, and the near-end user terminal redirects the hard-identified edge user terminal. Forward to the edge user terminal, as shown in Figure 5.
201、近站用户终端SIC硬判出来边缘用户终端的符号；201. The near-end user terminal SIC hardly judges the symbol of the edge user terminal;
202、边缘用户终端向通过空口信令向近站用户终端请求自己的信息；202. The edge user terminal requests its own information to the near station user terminal by using air interface signaling.
203、近站用户终端通过空口信令将边缘用户终端的符号发给边缘用户终端。203. The near-end user terminal sends the symbol of the edge user terminal to the edge user terminal by using air interface signaling.
例三，如图6所示，如边缘用户终端用16QAM调制，近站用户终端用QPSK，下行NOMA，网络侧获取到边缘用户终端解码信息失败次数较多， 启动近站用户终端转发边缘用户终端信息，近站用户终端然后转发解出来的边缘用户终端的原始信息给边缘用户终端。For example, as shown in FIG. 6, if the edge user terminal uses 16QAM modulation, the near-end user terminal uses QPSK, and the downlink NOMA, the network side obtains the edge user terminal to decode the information more frequently. The near-end user terminal is activated to forward the edge user terminal information, and the near-end user terminal then forwards the original information of the solved edge user terminal to the edge user terminal.
301、边缘用户终端向网络侧发送解码失败信息；301. The edge user terminal sends a decoding failure message to the network side.
302、网络侧判断边缘用户终端解码失败次数超过指定阈值；302. The network side determines that the number of decoding failures of the edge user terminal exceeds a specified threshold.
303、网络侧指示近站用户终端转发边缘用户终端信息；303. The network side indicates that the near-end user terminal forwards the edge user terminal information.
304、近站用户终端通过空口信令发送边缘用户终端的原始信息给边缘用户终端。304. The near-end user terminal sends the original information of the edge user terminal to the edge user terminal by using air interface signaling.
例四，如图7所示，如第一近站用户终端用QPSK,边缘用户终端用16QAM调制，第二近站用户终端用QPSK，下行NOMA，网络侧获取到边缘用户终端解码信息失败次数较多，重新配对，且启动近站用户终端转发边缘用户信息，近站用户终端然后将解出来的边缘用户终端的原始信息或者硬判出来的边缘用户终端的符号定向转发给边缘用户终端。For example, as shown in FIG. 7, if the first near-end user terminal uses QPSK, the edge user terminal uses 16QAM modulation, the second near-end user terminal uses QPSK, and the downlink NOMA, the network side obtains the edge user terminal to decode the information failure times. More, re-pairing, and initiating the near-end user terminal to forward the edge user information, and the near-end user terminal then forwards the original information of the solved edge user terminal or the hard-identified symbol direction of the edge user terminal to the edge user terminal.
401、边缘用户终端向网络侧发送解码失败信息；401. The edge user terminal sends decoding failure information to the network side.
402、网络侧判断边缘用户终端解码失败次数超过指定阈值；网络侧重新配对，将第二近站用户终端和边缘用户终端配对；402. The network side determines that the number of decoding failures of the edge user terminal exceeds a specified threshold; the network side re-pairs, and pairs the second near-end user terminal and the edge user terminal;
403、网络侧告知第二近站用户终端转发边缘用户终端信息；403. The network side informs the second near station user terminal to forward the edge user terminal information.
404、第二近站用户终端的码块级SIC对边缘用户终端解调、FEC译码，解出边缘用户终端的原始信息；404. The code block level SIC of the second near station user terminal demodulates and FEC decodes the edge user terminal, and extracts original information of the edge user terminal.
405、第二近站用户终端通过空口信令将解出来的边缘用户终端的原始信息转发给边缘用户终端。405. The second near-end user terminal forwards the original information of the solved edge user terminal to the edge user terminal by using air interface signaling.
当然，本申请还可有其他多种实施例，在不背离本申请精神及其实质的情况下，熟悉本领域的技术人员当可根据本申请作出各种相应的改变和变形，但这些相应的改变和变形都应属于本申请的权利要求的保护范围。There are a variety of other embodiments that can be made by those skilled in the art, and various corresponding changes and modifications can be made in accordance with the present application without departing from the spirit and scope of the application. Changes and modifications are intended to fall within the scope of the appended claims.
本领域普通技术人员可以理解上述实施例的全部或部分步骤可以使用计 算机程序流程来实现，所述计算机程序可以存储于一计算机可读存储介质中，所述计算机程序在相应的硬件平台上(如系统、设备、装置、器件等)执行，在执行时，包括方法实施例的步骤之一或其组合。One of ordinary skill in the art will appreciate that all or part of the steps of the above embodiments may be used. The computer program can be implemented in a computer readable storage medium, the computer program being executed on a corresponding hardware platform (such as a system, device, device, device, etc.), when executed, including One or a combination of the steps of the method embodiments.
可选地，上述实施例的全部或部分步骤也可以使用集成电路来实现，这些步骤可以被分别制作成一个个集成电路模块，或者将它们中的多个模块或步骤制作成单个集成电路模块来实现。Alternatively, all or part of the steps of the above embodiments may also be implemented by using an integrated circuit. These steps may be separately fabricated into individual integrated circuit modules, or multiple modules or steps may be fabricated into a single integrated circuit module. achieve.
上述实施例中的各装置/功能模块/功能单元可以采用通用的计算装置来实现，它们可以集中在单个的计算装置上，也可以分布在多个计算装置所组成的网络上。The devices/function modules/functional units in the above embodiments may be implemented by a general-purpose computing device, which may be centralized on a single computing device or distributed over a network of multiple computing devices.
上述实施例中的各装置/功能模块/功能单元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，可以存储在一个计算机可读取存储介质中。上述提到的计算机可读取存储介质可以是只读存储器，磁盘或光盘等。When each device/function module/functional unit in the above embodiment is implemented in the form of a software function module and sold or used as a stand-alone product, it can be stored in a computer readable storage medium. The above mentioned computer readable storage medium may be a read only memory, a magnetic disk or an optical disk or the like.
工业实用性Industrial applicability
上述技术方案增强了边缘用户终端的信息获取。 The above technical solution enhances information acquisition of the edge user terminal.

Claims (11)

  1. 一种下行非正交多址接入时的解码方法，包括：A decoding method for downlink non-orthogonal multiple access, comprising:
    近站用户终端的码块级串行干扰消除SIC解出边缘用户终端的原始信息或近站用户终端的符号级SIC硬判出边缘用户终端的符号；The code block level serial interference cancellation SIC of the near station user terminal solves the original information of the edge user terminal or the symbol level SIC of the near station user terminal hardly judges the symbol of the edge user terminal;
    所述近站用户终端在预定条件满足时，将解出的所述边缘用户终端的原始信息或硬判出的所述边缘用户终端的符号转发给所述边缘用户终端。When the predetermined condition is met, the near-end user terminal forwards the original information of the edge user terminal that is solved or the symbol of the edge user terminal that is hardly determined to the edge user terminal.
  2. 如权利要求1所述的方法，其中，所述预定条件包括以下任一种：The method of claim 1 wherein said predetermined condition comprises any of the following:
    所述近站用户终端解出边缘用户终端的原始信息或硬判出边缘用户终端的符号；The near-end user terminal solves the original information of the edge user terminal or hardly judges the symbol of the edge user terminal;
    所述近站用户终端收到边缘用户终端的请求；Receiving, by the near station user terminal, a request of an edge user terminal;
    所述近站用户终端收到网络侧转发边缘用户终端信息的指示。The near-end user terminal receives an indication that the network side forwards the edge user terminal information.
  3. 如权利要求2所述的方法，其中，所述近站用户终端收到网络侧转发边缘用户终端信息的指示，包括：The method of claim 2, wherein the near-end user terminal receives an indication that the network side forwards the edge user terminal information, including:
    所述近站用户终端收到所述网络侧因获知边缘用户终端解码失败次数超过指定阈值时发送的转发边缘用户终端信息指示。The near-end user terminal receives the forwarding edge user terminal information indication sent by the network side when the number of decoding failures of the edge user terminal exceeds a specified threshold.
  4. 如权利要求2所述的方法，其中，The method of claim 2, wherein
    所述近站用户终端收到网络侧转发边缘用户终端信息的指示，包括：The near-end user terminal receives an indication that the network side forwards the edge user terminal information, including:
    第二近站用户终端收到所述网络侧当获知边缘用户终端解码失败次数超过指定阈值时，将所述边缘用户终端由与第一近站用户终端配对，改成和第二近站用户终端配对后，发送的转发边缘用户终端信息指示。Receiving, by the second near-end user terminal, the network side, when the number of decoding failures of the edge user terminal exceeds a specified threshold, pairing the edge user terminal with the first near-end user terminal, and changing to the second near-end user terminal After pairing, the forwarded edge user terminal information sent is indicated.
  5. 如权利要求4所述的方法，所述方法还包括：The method of claim 4, the method further comprising:
    所述第二近站用户终端收到所述转发边缘用户终端信息的指示后，执行所述解出边缘用户终端的原始信息或硬判出边缘用户终端的符号的步骤，以及所述将解出的所述边缘用户终端的原始信息或硬判出的所述边缘用户终端的符号转发给所述边缘用户终端的步骤。 After the second near-end user terminal receives the indication of forwarding the edge user terminal information, performing the step of decoding the original information of the edge user terminal or hardly determining the symbol of the edge user terminal, and the solution will be solved The original information of the edge user terminal or the hard-resolved symbol of the edge user terminal is forwarded to the edge user terminal.
  6. 一种设置于近站用户终端中的下行非正交多址接入时的解码装置，所述装置包括：A decoding apparatus for downlink non-orthogonal multiple access in a near-end user terminal, the apparatus comprising:
    串行干扰消除SIC模块，设置为解出边缘用户终端的原始信息或硬判出边缘用户终端的符号；The serial interference cancellation SIC module is configured to solve the original information of the edge user terminal or hardly determine the symbol of the edge user terminal;
    转发模块，设置为当预定条件满足时，将解出的所述边缘用户终端的原始信息或硬判出的所述边缘用户终端的符号转发给所述边缘用户终端。And a forwarding module, configured to: when the predetermined condition is met, forward the original information of the edge user terminal that is solved or the symbol of the edge user terminal that is hardly determined to the edge user terminal.
  7. 如权利要求6所述的装置，所述装置还包括接收模块；The apparatus of claim 6 further comprising a receiving module;
    其中，所述预定条件包括以下任一种：Wherein the predetermined condition includes any one of the following:
    所述SIC模块解出边缘用户终端的原始信息或硬判出边缘用户终端的符号；The SIC module solves the original information of the edge user terminal or hardly judges the symbol of the edge user terminal;
    所述接收模块收到边缘用户终端的请求；Receiving, by the receiving module, a request of an edge user terminal;
    所述接收模块收到网络侧转发边缘用户终端信息的指示。The receiving module receives an indication that the network side forwards the edge user terminal information.
  8. 如权利要求7所述的装置，其中，所述接收模块收到网络侧转发边缘用户终端信息的指示，包括：The device of claim 7, wherein the receiving module receives an indication that the network side forwards the edge user terminal information, including:
    所述接收模块收到所述网络侧因获知边缘用户终端解码失败次数超过指定阈值发送的转发边缘用户终端信息指示。The receiving module receives the forwarding edge user terminal information indication that is sent by the network side because the number of decoding failures of the edge user terminal exceeds a specified threshold.
  9. 如权利要求7所述的装置，其中，所述接收模块收到网络侧转发边缘用户终端信息的指示，包括：The device of claim 7, wherein the receiving module receives an indication that the network side forwards the edge user terminal information, including:
    所述接收模块接收所述网络侧指示近站用户终端修改为与边缘用户终端配对的消息。The receiving module receives a message that the network side indicates that the near-end user terminal is modified to be paired with the edge user terminal.
  10. 如权利要求9所述的装置，The device of claim 9
    所述接收模块，还设置为当接收到将所述近站用户终端修改为与边缘用户终端配对的消息，及转发边缘用户终端信息的指示后，启动所述SIC模块和所述转发模块。The receiving module is further configured to: after receiving the message that the near-end user terminal is modified to be paired with the edge user terminal, and the indication of forwarding the edge user terminal information, starting the SIC module and the forwarding module.
  11. 一种计算机存储介质，所述计算机存储介质中存储有计算机可执行指令，所述计算机可执行指令用于执行权利要求1～5中任一项所述的方法。 A computer storage medium having stored therein computer executable instructions for performing the method of any one of claims 1 to 5.
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