WO2016188147A1 - 上行mu-mimo传输的方法、装置及存储介质 - Google Patents

上行mu-mimo传输的方法、装置及存储介质 Download PDF

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Publication number
WO2016188147A1
WO2016188147A1 PCT/CN2016/073552 CN2016073552W WO2016188147A1 WO 2016188147 A1 WO2016188147 A1 WO 2016188147A1 CN 2016073552 W CN2016073552 W CN 2016073552W WO 2016188147 A1 WO2016188147 A1 WO 2016188147A1
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terminal
timing advance
current
advance amount
preset
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PCT/CN2016/073552
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English (en)
French (fr)
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姬舒平
赵黎波
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中兴通讯股份有限公司
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling

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  • the present invention relates to the field of communications, and in particular, to a method, an apparatus, and a computer storage medium for uplink MU-MIMO (Multiple User-Multiple Input and Multiple Output) transmission.
  • MU-MIMO Multiple User-Multiple Input and Multiple Output
  • Uplink MU-MIMO technology is an important means to improve the transmission performance and throughput of LTE cells. This technology does not increase the complexity of terminal transmission, but at the base station side, it needs to complete user selection and multi-user detection. When different users satisfy the wireless isolation condition, the same time-frequency resources are used to improve the spectrum multiplexing coefficient of the cell, and the overall throughput and spectrum efficiency are improved. As shown in FIG. 1, it is a schematic diagram of an uplink MU-MIMO technology.
  • the algorithm mainly reduces the interference of the paired users by the following means:
  • the uplink demodulation reference signal DMRS sequence of the paired user is orthogonal, and the base sequence of the uplink DMRS must be the same, and the values of the cyclic shift parameter ⁇ are exactly 6 different to ensure good channel estimation performance.
  • Pairing algorithm Through the effective user pairing process, the interference between the paired users is minimized, thereby obtaining the multi-user diversity gain better, and ensuring the reliability and robustness of the wireless link transmission after pairing.
  • Space-division filtering the interference of the paired users is effectively eliminated by the space-splitting filtering.
  • the complexity of the space-division filtering algorithm is relatively high and the hardware has new requirements. Considering the complexity of the algorithm and the benefit balance of MU-MIMO, the current The method is basically not adopted by various manufacturers.
  • the transmit power of each paired user is higher than the transmit power of a single user, especially in good and medium.
  • Point the user has a scene with transmit power redundancy.
  • the actual test results show that when the cell is better and the midpoint user is paired, the transmit power of each user is increased by 3 to 5 db, and the improvement of the NI (Noise and Interference) of the neighboring cell under the same base station is very obvious.
  • NI Noise and Interference
  • the embodiment of the present invention provides an uplink multi-user multiple input multiple.
  • a method, apparatus, and computer storage medium for outputting MU-MIMO transmission are described in detail below.
  • An embodiment of the present invention provides a method for uplink multi-user multiple input multiple output MU-MIMO transmission, where the method includes:
  • the calculating the first timing advance amount of the first terminal and the second timing advance amount of the second terminal according to the preset multipath channel delay and the current delay difference including: Acquiring a current timing advance of the first terminal and a current timing advance of the second terminal; acquiring an adjustable delay value of the paired terminal, where the adjustable delay value is the multipath channel delay a difference from the current delay difference; calculating a current timing advance amount of the first terminal Calculating a first timing advance amount of the preset first step length of the adjustable delay value, and calculating a current timing advance amount of the second terminal and a preset first of the adjustable delay value
  • the difference in step size is obtained as the second timing advance.
  • the acquiring the current timing advance of the first terminal and the current timing advance of the second terminal includes: demodulating the uplink demodulation reference signal DMRS of the paired terminal, respectively acquiring The current timing advance of the first terminal and the current timing advance of the second terminal.
  • the acquiring the current delay difference between the paired terminals includes: demodulating the uplink DMRS of the paired terminal, and acquiring a current delay difference between the paired terminals.
  • an apparatus for uplink MU-MIMO transmission includes: a selecting module configured to determine a first terminal and a second terminal in a MU-MIMO pairing terminal; a module, configured to acquire a current delay difference between the paired terminals; and a calculating module configured to calculate a first timing advance of the first terminal according to the preset multipath channel delay and the current delay difference And a second timing advance of the second terminal, such that a difference between the first timing advance and the second timing advance is equal to the multipath channel delay; a sending module configured to Sending the first timing advance amount to the first terminal, The second timing advance amount is sent to the second terminal, so that the first terminal and the second terminal respectively send uplink data according to the first timing advance amount and the second timing advance amount.
  • the calculating module is configured to acquire a current timing advance of the first terminal and a current timing advance of the second terminal, and obtain an adjustable delay value of the paired terminal, where the adjustable The delay value is a difference between the multipath channel delay and the current delay difference; and calculating a sum of a preset first step length of the current timing advance of the first terminal and the adjustable delay value And obtaining a first timing advance amount; calculating a difference between a current timing advance amount of the second terminal and a preset first step length of the adjustable delay value, to obtain the second timing advance amount.
  • the calculation module is configured to determine whether the first timing advance amount causes the demodulation window to exceed the demodulation window range, and if so, the preset second step size according to the adjustable delay value. Determining the value of the first timing advance amount until the first timing advance amount does not cause the demodulation window to exceed the demodulation window range; wherein the preset second step size is smaller than the preset first step length; Determining whether the second timing advance amount causes the demodulation window to exceed the demodulation window range, and if so, increasing the second timing advance value according to the preset second step of the adjustable delay value until the The second timing advance does not cause the demodulation window to exceed the demodulation window range.
  • the calculation module is configured to demodulate the uplink demodulation reference signal DMRS of the paired terminal, and acquire a current timing advance of the first terminal and a current timing advance of the second terminal, respectively.
  • the acquiring module is configured to demodulate the uplink DMRS of the paired terminal, and obtain a current delay difference between the paired terminals.
  • 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 perform the foregoing method for uplink multi-user multiple input multiple output MU-MIMO transmission.
  • the medium first calculates a first timing advance amount of the first terminal and a second timing advance amount of the second terminal according to the preset multipath channel delay and the current delay difference between the paired terminals, so that the first timing advances The difference between the quantity and the second timing advance is equal to the multipath delay, and then the first timing advance is transmitted to the first terminal, and the second timing advance is transmitted to the second terminal, so that the first terminal and the second
  • the terminal may send the uplink data according to the first timing advance amount and the second timing advance amount, respectively.
  • the uplink demodulation performance of the MU-MIMO pairing terminal is improved, and the transmitting of the paired terminal is reduced.
  • Power which reduces the NI enhancement in the entire LTE system after the MU-MIMO function is turned on.
  • Figure 1 shows a schematic diagram of an uplink MU-MIMO technology
  • FIG. 2 is a flow chart showing the steps of a method for uplink MU-MIMO transmission in an embodiment of the present invention
  • FIG. 3 is a flow chart showing the detailed steps of a method for uplink MU-MIMO transmission in an embodiment of the present invention
  • FIG. 4 is a block diagram showing the structure of an apparatus for uplink MU-MIMO transmission in an embodiment of the present invention.
  • a flowchart of a method for uplink MU-MIMO transmission in an embodiment of the present invention includes the following steps:
  • Step 101 Determine a first terminal and a second terminal in the MU-MIMO pairing terminal.
  • the base station may determine the first terminal and the second terminal in the MU-MIMO paired terminal by using an existing pairing algorithm.
  • Step 102 Acquire a current delay difference between the paired terminals.
  • the base station acquires the current delay difference between the paired terminals, that is, obtains the current delay difference between the first terminal and the second terminal.
  • the delay refers to the time required for a message or packet to be transmitted from one end of a network to another.
  • the delay difference refers to the transmission constant of two mutually orthogonal polarization modes when the signal is transmitted in unit length. Different, the required time is different, resulting in a difference in delay.
  • the current delay difference refers to the difference between the delay generated when the first terminal transmits a signal and the delay generated when the second terminal transmits a signal. value.
  • Step 103 Calculate a first timing advance amount of the first terminal and a second timing advance amount of the second terminal according to the preset multipath channel delay and the current delay difference.
  • the base station network management first pre-configures the multipath channel delay.
  • the multipath channel delay refers to the interference delay effect caused by the multipath transmission phenomenon in the radio wave propagation channel.
  • the multipath phenomenon refers to a transmission path with many delays in the actual radio wave propagation channel (including all bands).
  • the base station calculates a first timing advance amount of the first terminal and a second timing advance amount of the second terminal according to the preset multipath channel delay and the current delay difference, so that the first timing advance amount and the second timing The difference between the advance amounts is equal to the multipath channel delay.
  • the timing advance is to ensure time synchronization on the receiving signal side, that is, on the base station side.
  • the timing advance is essentially a negative offset between the start time of receiving the downlink subframe and the time of transmitting the uplink subframe, and the base station side controls the offset of each terminal appropriately. It is possible to control the time when the uplink signals from different terminals arrive at the base station. Therefore, when the terminal and the base station communicate, in order to ensure that the message received by the base station on the time slot does not overlap with another message received by the base station in its next time slot, thereby correctly decoding the information, it is necessary to set the timing. Advance quantity.
  • the first timing advance amount and the second timing advance amount are both adjusted timing advance amounts.
  • Step 104 Send the first timing advance amount to the first terminal, and send the second timing advance amount to the second terminal.
  • the base station sends the first timing advance amount to the first terminal, and sends the second timing advance amount to the second terminal, so that the first terminal and the second terminal respectively according to the first timing advance amount and the second timing Send uplink data in advance.
  • the base station improves the uplink demodulation performance of the MU-MIMO paired terminal by adjusting the first timing advance of the first terminal and the second timing advance of the second terminal in the paired terminal, and reduces the uplink terminal demodulation performance of the paired terminal. Transmit power, which reduces the NI enhancement in the entire LTE system after the MU-MIMO function is turned on.
  • a flowchart of detailed steps of a method for uplink MU-MIMO transmission in an embodiment of the present invention includes the following steps:
  • Step 101 Determine a first terminal and a second terminal in the MU-MIMO pairing terminal.
  • Step 102 Acquire a current delay difference between the paired terminals.
  • the base station demodulates the uplink demodulation reference signal DMRS of the paired terminal to obtain a current delay difference between the paired terminals.
  • Step 201 Acquire a current timing advance of the first terminal and a current timing advance of the second terminal.
  • the base station obtains the current timing advance of the first terminal and the current timing advance of the second terminal by demodulating the uplink DMRS of the paired terminal.
  • Step 202 Obtain an adjustable delay value of the paired terminal.
  • the adjustable delay value refers to the value of the delay that can be adjusted.
  • Step 203 Calculate a sum of a preset first step length of the current timing advance amount of the first terminal and the adjustable delay value, to obtain a first timing advance amount.
  • the first timing advance amount TA 1 is obtained , wherein the first timing advance amount TA 1 is a preset first step of the current timing advance amount Ta 1 of the first terminal and the adjustable delay value ⁇ T. And value.
  • the preset first step length of the preset adjustable delay value ⁇ T is ⁇ T/2
  • the first timing advance amount TA 1 is adjustable for the current timing advance amounts Ta 1 and 1/2 of the first terminal.
  • TA 1 Ta 1 + ⁇ T/2.
  • Step 204 Calculate a difference between a current timing advance amount of the second terminal and a preset first step length of the adjustable delay value, to obtain a second timing advance amount.
  • a second timing advance amount TA 2 is obtained , wherein the second timing advance amount TA 2 is a preset first step of the current timing advance amount Ta 2 of the second terminal and the adjustable delay value ⁇ T. Difference.
  • the preset first step length of the preset adjustable delay value ⁇ T is ⁇ T/2
  • the second timing advance amount TA 2 is an adjustable current timing advance amount Ta 2 and 1/2 of the second terminal.
  • TA 2 Ta 2 - ⁇ T/2.
  • Step 205 Determine whether the first timing advance amount causes the demodulation window to exceed the demodulation window range.
  • the base station determines whether the first timing advance of the first terminal in the paired terminal causes the demodulation window range to be exceeded when demodulating the uplink DMRS.
  • Step 206 If the determination result is yes, the value of the first timing advance is reduced according to the preset second step of the adjustable delay value, until the first timing advance does not cause the demodulation window to exceed the demodulation window range. .
  • the value of the first timing advance amount is decreased according to the preset second step size of the adjustable delay value. Until the first timing advance does not cause the demodulation window range to be demodulated when the uplink DMRS is demodulated, wherein the preset second step size is smaller than the preset first step length. Specifically, when the first timing advance is adjusted to not exceed the demodulation window range when demodulating the uplink DMRS, the first timing advance is sent to the first terminal, and the first terminal sends the uplink according to the first timing advance. data.
  • the preset first step length of the preset adjustable delay value ⁇ T is ⁇ T/2
  • the preset second step size is ⁇ T/8
  • the first timing advance is re-adjusted according to the value of ⁇ T/8.
  • the amount, that is, the value of the first timing advance amount is continuously decreased according to the value of ⁇ T/8 until the first timing advance amount does not cause the demodulation window range to be exceeded when demodulating the uplink DMRS.
  • the first timing advance amount obtained by the initial calculation does not cause the demodulation window range to be demodulated when the uplink DMRS is demodulated
  • the first timing advance amount is directly sent to the first terminal, so that the first terminal is configured according to the first
  • the advanced data is sent in advance timing.
  • Step 207 Determine whether the second timing advance amount will cause the demodulation window to exceed the demodulation window range.
  • the base station determines whether the second timing advance of the second terminal in the paired terminal causes the demodulation window to be exceeded when the uplink DMRS is demodulated.
  • Step 208 If the determination result is yes, increase the value of the second timing advance according to the preset second step of the adjustable delay value until the second timing advance does not cause the demodulation window to exceed the demodulation window range. .
  • the value of the second timing advance amount is increased according to the preset second step of the adjustable delay value until the The second timing advance does not cause the demodulation window to be exceeded when demodulating the upstream DMRS.
  • the second timing advance is adjusted to not exceed the demodulation window range when demodulating the uplink DMRS, the second timing advance is sent to the second terminal, and the second terminal sends the uplink according to the second timing advance. data.
  • the second timing advance amount is re-adjusted according to the value of ⁇ T/8, that is, the value of the second timing advance amount is continuously increased according to the value of ⁇ T/8 until the second timing advance amount does not cause demodulation
  • the uplink DMRS exceeds the demodulation window range.
  • the second timing advance calculated by the initial calculation does not cause the demodulation window range to be exceeded when the uplink DMRS is demodulated, the second timing advance is directly sent to the second terminal, so that the second terminal is according to the second The advanced data is sent in advance timing.
  • 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 perform the foregoing method for uplink multi-user multiple input multiple output MU-MIMO transmission.
  • FIG. 4 is a structural block diagram of an apparatus for uplink MU-MIMO transmission according to an embodiment of the present invention, where the apparatus includes:
  • the selecting module 301 is configured to determine the first terminal and the second terminal in the MU-MIMO pairing terminal;
  • the obtaining module 302 is configured to obtain a current delay difference between the paired terminals
  • the calculating module 303 is configured to calculate a first timing advance amount of the first terminal and a second timing advance amount of the second terminal according to the preset multipath channel delay and the current delay difference, so that the first timing advance amount and the first timing The difference between the timing advances is equal to the multipath channel delay;
  • the sending module 304 is configured to send the first timing advance amount to the first terminal, and send the second timing advance amount to the second terminal, so that the first terminal and the second terminal respectively according to the first timing advance amount and the second timing Send uplink data in advance.
  • the calculating module 303 is further configured to: acquire a current timing advance of the first terminal and a current timing advance of the second terminal; and obtain an adjustable delay value of the paired terminal, where the adjustable delay value is a multipath channel And a difference between the current timing advance of the first terminal and a preset first step of the adjustable delay value, to obtain a first timing advance; and calculate a current timing of the second terminal The difference between the advance amount and the preset first step length of the adjustable delay value to obtain the second timing Advance quantity.
  • the calculating module 303 is further configured to: determine whether the first timing advance amount causes the uplink demodulation to exceed the demodulation window range, and if yes, reduce the first timing according to the preset second step of the adjustable delay value. The value of the advance amount until the first timing advance does not cause the demodulation window to exceed the demodulation window range; wherein the preset second step size is smaller than the preset first step length; determining whether the second timing advance amount causes the uplink Demodulation exceeds the demodulation window range. If yes, the value of the second timing advance is increased according to the preset second step of the adjustable delay value until the second timing advance does not cause the demodulation to exceed the demodulation. Window range.
  • the calculating module 303 is further configured to: demodulate the uplink demodulation reference signal DMRS of the paired terminal, and obtain a current timing advance of the first terminal and a current timing advance of the second terminal, respectively.
  • the obtaining module 302 is further configured to perform demodulation on the uplink DMRS of the paired terminal to obtain a current delay difference between the paired terminals.
  • the selection module 301, the acquisition module 302, the calculation module 303, and the transmission module 304 may each be a central processing unit (CPU), or a digital signal processing (DSP), or a micro processing unit. (MPU, Micro Processor Unit), or Field Programmable Gate Array (FPGA).
  • CPU central processing unit
  • DSP digital signal processing
  • MPU Micro Processor Unit
  • FPGA Field Programmable Gate Array
  • the apparatus for uplink MU-MIMO transmission provided by the embodiment of the present invention is similar to the foregoing method for uplink MU-MIMO transmission, and therefore, the implementation process and implementation principles of the apparatus may be Refer to the implementation process of the foregoing method and the description of the implementation principle (as shown in Figure 2 and Figure 3).
  • embodiments of the present invention can be provided as a method, system, or computer program product. Accordingly, the present invention can take the form of a hardware embodiment, a software embodiment, or a combination of software and hardware. Moreover, the invention can take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage and optical storage, etc.) including computer usable program code.
  • the computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device.
  • the apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.
  • These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programmable device.
  • the instructions provide steps for implementing the functions specified in one or more of the flow or in a block or blocks of a flow diagram.
  • the first timing advance amount of the first terminal and the second timing advance amount of the second terminal are calculated, so that The difference between the first timing advance amount and the second timing advance amount is equal to the multipath delay, and then the first timing advance amount is transmitted to the first terminal, and the second timing advance amount is transmitted to the second terminal, so that the first The terminal and the second terminal may send the uplink data according to the first timing advance amount and the second timing advance amount, respectively.
  • the uplink demodulation performance of the MU-MIMO paired terminal is improved, and the transmit power of the paired terminal is reduced, thereby reducing the MU.
  • the enhancement of NI in the entire LTE system after the MIMO function is turned on.

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Abstract

本发明提供了一种上行多用户多输入多输出MU-MIMO传输的方法及装置，方法包括：确定MU-MIMO配对终端中的第一终端和第二终端；获取配对终端之间的当前时延差；根据预先设置的多径信道时延和当前时延差，计算第一终端的第一定时提前量和第二终端的第二定时提前量，使得第一定时提前量和第二定时提前量之间的差值等于多径信道时延；将第一定时提前量发送至第一终端，将第二定时提前量发送至第二终端，以使第一终端和第二终端分别根据第一定时提前量和第二定时提前量发送上行数据。本发明还公开了一种计算机存储介质。

Description

上行MU-MIMO传输的方法、装置及存储介质 技术领域
本发明涉及通信领域，尤其是涉及一种上行MU-MIMO(Multiple User-Multiple Input and Multiple Output，多用户多输入多输出)传输的方法、装置及计算机存储介质。
背景技术
上行MU-MIMO技术是提高LTE小区的传输性能和吞吐量的一个重要手段，该技术并不会增加终端发送的复杂度，但是在基站端，需要完成用户的选择配对和多用户的检测，它通过不同用户在满足无线隔离条件的情况下，采用相同的时频资源，提升小区频谱复用系数，提升整体的吞吐量和频谱效率。如图1所示，为上行MU-MIMO技术的示意图。
由于MU-MIMO信号来自不同的用户，经过不同的信道，因此用户间互相干扰的程度不同，目前算法主要通过以下几种手段来降低配对用户的干扰：
(1)配对用户的上行解调参考信号DMRS序列正交，必须满足上行DMRS的基序列相同，循环移位参数α的值正好相差6，以保证良好的信道估计性能。
(2)配对算法：通过有效的用户配对过程，使配对用户之间的干扰最小，进而更好的获得多用户分集增益，保证配对后无线链路传输的可靠性以及鲁棒性。
(3)空分滤波：通过空分滤波有效消除配对用户的干扰，空分滤波算法的复杂度比较高和对硬件有新的要求，考虑到算法复杂度和MU-MIMO的效益平衡，目前该方法各厂商基本没有采用。
尽管采用了上述方法，上行MU-MIMO空分后，为了达到解调的性能，每个配对用户的发射功率还是高于单用户的发射功率，尤其是在好点和中 点，用户有发射功率冗余的场景下。实际测试结果表明，小区好点和中点用户配对时，每个用户的发射功率提升了3～5db，对同一基站下相邻小区的NI(Noise and Interference，噪声和干扰)提升非常明显。另外如果当同一基站下3个小区内用户同时采用MU-MIMO技术，MU-MIMO的性能将大幅下降。
发明内容
为了提升MU-MIMO配对终端的上行解调性能，降低配对终端的发射功率，从而降低MU-MIMO功能开启后整个LTE系统中NI的提升，本发明实施例提供了一种上行多用户多输入多输出MU-MIMO传输的方法、装置及计算机存储介质。
本发明实施例提供了一种上行多用户多输入多输出MU-MIMO传输的方法，所述方法包括：
确定MU-MIMO配对终端中的第一终端和第二终端；
获取所述配对终端之间的当前时延差；
根据预先设置的多径信道时延和所述当前时延差，计算所述第一终端的第一定时提前量和所述第二终端的第二定时提前量，使得所述第一定时提前量和所述第二定时提前量之间的差值等于所述多径信道时延；
将所述第一定时提前量发送至第一终端，将所述第二定时提前量发送至第二终端，以使所述第一终端和第二终端分别根据所述第一定时提前量和所述第二定时提前量发送上行数据。
上述方案中，所述根据预先设置的多径信道时延和所述当前时延差，计算所述第一终端的第一定时提前量和所述第二终端的第二定时提前量，包括：获取所述第一终端的当前定时提前量和所述第二终端的当前定时提前量；获取所述配对终端的可调时延值，所述可调时延值为所述多径信道时延与所述当前时延差的差值；计算所述第一终端的当前定时提前量与所 述可调时延值的预设第一步长的和值，获得所述第一定时提前量；计算所述第二终端的当前定时提前量与所述可调时延值的预设第一步长的差值，获得所述第二定时提前量。
上述方案中，所述根据预先设置的多径信道时延和所述当前时延差，计算所述第一终端的第一定时提前量和所述第二终端的第二定时提前量，还包括：判断所述第一定时提前量是否会导致上行解调时超出解调窗口范围，若是，则按照可调时延值的预设第二步长减少所述第一定时提前量的值，直至所述第一定时提前量不会导致上行解调时超出解调窗口范围；其中，所述预设第二步长小于所述预设第一步长；判断所述第二定时提前量是否会导致上行解调时超出解调窗口范围，若是，则按照可调时延值的预设第二步长增加所述第二定时提前量的值，直至所述第二定时提前量不会导致上行解调时超出解调窗口范围。
上述方案中，所述获取所述第一终端的当前定时提前量和所述第二终端的当前定时提前量，包括：对所述配对终端的上行解调参考信号DMRS进行解调，分别获取所述第一终端的当前定时提前量和所述第二终端的当前定时提前量。
上述方案中，所述获取所述配对终端之间的当前时延差，包括：对所述配对终端的上行DMRS进行解调，获取所述配对终端之间的当前时延差。
依据本发明实施例的另一个方面，还提供了一种上行MU-MIMO传输的装置，所述装置包括：选择模块，配置为确定MU-MIMO配对终端中的第一终端和第二终端；获取模块，配置为获取所述配对终端之间的当前时延差；计算模块，配置为根据预先设置的多径信道时延和所述当前时延差，计算所述第一终端的第一定时提前量和所述第二终端的第二定时提前量，使得所述第一定时提前量和所述第二定时提前量之间的差值等于所述多径信道时延；发送模块，配置为将所述第一定时提前量发送至第一终端，将 所述第二定时提前量发送至第二终端，以使所述第一终端和第二终端分别根据所述第一定时提前量和所述第二定时提前量发送上行数据。
上述方案中，所述计算模块配置为，获取所述第一终端的当前定时提前量和所述第二终端的当前定时提前量；获取所述配对终端的可调时延值，所述可调时延值为所述多径信道时延与所述当前时延差的差值；计算所述第一终端的当前定时提前量与所述可调时延值的预设第一步长的和值，获得所述第一定时提前量；计算所述第二终端的当前定时提前量与所述可调时延值的预设第一步长的差值，获得所述第二定时提前量。
上述方案中，所述计算模块配置为，判断所述第一定时提前量是否会导致上行解调时超出解调窗口范围，若是，则按照可调时延值的预设第二步长减少所述第一定时提前量的值，直至所述第一定时提前量不会导致上行解调时超出解调窗口范围；其中，所述预设第二步长小于所述预设第一步长；判断所述第二定时提前量是否会导致上行解调时超出解调窗口范围，若是，则按照可调时延值的预设第二步长增加所述第二定时提前量的值，直至所述第二定时提前量不会导致上行解调时超出解调窗口范围。
上述方案中，所述计算模块配置为，对所述配对终端的上行解调参考信号DMRS进行解调，分别获取所述第一终端的当前定时提前量和所述第二终端的当前定时提前量。
上述方案中，所述获取模块配置为，对所述配对终端的上行DMRS进行解调，获取所述配对终端之间的当前时延差。
本发明实施例还提供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前述的上行多用户多输入多输出MU-MIMO传输的方法。
本发明实施例的有益效果是：
本发明实施例提供的上行MU-MIMO传输的方法、装置及计算机存储 介质，首先根据预先设置的多径信道时延和配对终端之间的当前时延差，计算得到第一终端的第一定时提前量和第二终端的第二定时提前量，使得第一定时提前量和第二定时提前量之间的差值等于多径时延，然后将第一定时提前量发送至第一终端，将第二定时提前量发送至第二终端，使得第一终端和第二终端可以分别根据第一定时提前量和第二定时提前量发送上行数据。本发明实施例中，通过调整配对终端中第一终端的第一定时提前量和第二终端的第二定时提前量，提升了MU-MIMO配对终端的上行解调性能，降低了配对终端的发射功率，从而降低了MU-MIMO功能开启后整个LTE系统中NI的提升。
附图说明
图1表示上行MU-MIMO技术的示意图；
图2表示本发明的实施例中上行MU-MIMO传输的方法的步骤流程图；
图3表示本发明的实施例中上行MU-MIMO传输的方法的详细步骤流程图；以及
图4表示本发明的实施例中上行MU-MIMO传输的装置的结构框图。
具体实施方式
下面将参照附图更详细地描述本公开的示例性实施例。虽然附图中显示了本公开的示例性实施例，然而应当理解，可以以各种形式实现本公开而不应被这里阐述的实施例所限制。相反，提供这些实施例是为了能够更透彻地理解本公开，并且能够将本公开的范围完整的传达给本领域的技术人员。
如图2所示，为本发明的实施例中上行MU-MIMO传输的方法的步骤流程图，包括如下步骤：
步骤101，确定MU-MIMO配对终端中的第一终端和第二终端。
在本步骤中，基站可以利用现有的配对算法确定MU-MIMO配对终端中的第一终端和第二终端。
步骤102，获取配对终端之间的当前时延差。
在本步骤中，基站获取配对终端之间的当前时延差，即获取第一终端和第二终端之间的当前时延差。具体的，时延是指一个报文或分组从一个网络的一端传送到另一个端所需要的时间，时延差是指信号传输单位长度时，由于两个相互正交的偏振模的传输常数不同，使得所需要的时间不同，造成时延上的差别，在本步骤中，当前时延差是指第一终端传输信号时产生的时延与第二终端传输信号时产生的时延的差值。
步骤103，根据预先设置的多径信道时延和当前时延差，计算第一终端的第一定时提前量和第二终端的第二定时提前量。
在本步骤中，基站网管首先预先配置多径信道时延，具体的，多径信道时延是指由电波传播信道中的多径传输现象所引起的干涉延时效应。其中，多径现象是指在实际的无线电波传播信道中(包括所有波段)，许多时延不同的传输路径。
然后，基站根据预先设置的多径信道时延和当前时延差，计算第一终端的第一定时提前量和第二终端的第二定时提前量，以使得第一定时提前量和第二定时提前量之间的差值等于多径信道时延。
具体的，定时提前量是为了保证接收信号侧即基站侧的时间同步。于终端侧来说，定时提前量本质上是终端接收到下行子帧的起始时间与传输上行子帧的时间之间的一个负偏移，基站侧通过适当的控制每个终端的偏移，可以控制来自不同终端的上行信号到达基站的时间。因此，在终端和基站通信时，为了保证基站收到的终端在本时隙上发送的消息与基站在其下一个时隙收到的另一个消息不重叠，从而正确解码信息，需要设置定时 提前量。
具体的，在本步骤中，第一定时提前量和第二定时提前量均为调整后的定时提前量。
步骤104，将第一定时提前量发送至第一终端，将第二定时提前量发送至第二终端。
在本步骤中，基站将第一定时提前量发送至第一终端，将第二定时提前量发送至第二终端，以使第一终端和第二终端分别根据第一定时提前量和第二定时提前量发送上行数据。
在本实施例中，基站通过调整配对终端中第一终端的第一定时提前量和第二终端的第二定时提前量，提升了MU-MIMO配对终端的上行解调性能，降低了配对终端的发射功率，从而降低了MU-MIMO功能开启后整个LTE系统中NI的提升。
如图3所示，为本发明的实施例中上行MU-MIMO传输的方法的详细步骤流程图，包括如下步骤：
步骤101，确定MU-MIMO配对终端中的第一终端和第二终端。
步骤102，获取配对终端之间的当前时延差。
在本步骤中，基站通过对配对终端的上行解调参考信号DMRS进行解调，获取配对终端之间的当前时延差。
步骤201，获取第一终端的当前定时提前量和第二终端的当前定时提前量。
在本步骤中，基站通过对配对终端的上行DMRS进行解调，分别获取第一终端的当前定时提前量和第二终端的当前定时提前量。
步骤202，获取配对终端的可调时延值。
在本步骤中，可调时延值是指可以调整的时延的值。具体的，可调时延值△T为多径信道时延Td与当前时延差Tc的差值，即△T＝Td－Tc。
步骤203，计算第一终端的当前定时提前量与可调时延值的预设第一步长的和值，获得第一定时提前量。
在本步骤中，获得第一定时提前量TA1，其中，第一定时提前量TA1为第一终端的当前定时提前量Ta1与可调时延值△T的预设第一步长的和值。
假设，预设可调时延值△T的预设第一步长为△T/2，则第一定时提前量TA1为第一终端的当前定时提前量Ta1与1/2的可调时延值的和值，即
TA1＝Ta1+△T/2。
步骤204，计算第二终端的当前定时提前量与可调时延值的预设第一步长的差值，获得第二定时提前量。
在本步骤中，获得第二定时提前量TA2，其中，第二定时提前量TA2为第二终端的当前定时提前量Ta2与可调时延值△T的预设第一步长的差值。
其中，预设可调时延值△T的预设第一步长为△T/2，则第二定时提前量TA2为第二终端的当前定时提前量Ta2与1/2的可调时延值的差值，即
TA2＝Ta2－△T/2。
步骤205，判断第一定时提前量是否会导致上行解调时超出解调窗口范围。
在本步骤中，基站判断配对终端中第一终端的第一定时提前量是否会导致解调上行DMRS时超出解调窗口范围。
步骤206，若判断结果为是，则按照可调时延值的预设第二步长减少第一定时提前量的值，直至第一定时提前量不会导致上行解调时超出解调窗口范围。
在本步骤中，若判断第一定时提前量会导致解调上行DMRS时超出解调窗口范围，则按照可调时延值的预设第二步长减少第一定时提前量的值， 直至第一定时提前量不会导致解调上行DMRS时超出解调窗口范围，其中，预设第二步长小于预设第一步长。具体的，在第一定时提前量调整至不会导致解调上行DMRS时超出解调窗口范围时，将第一定时提前量发送至第一终端，由第一终端根据第一定时提前量发送上行数据。
假设，预设可调时延值△T的预设第一步长为△T/2，预设第二步长为△T/8，则按照△T/8的值重新调整第一定时提前量，即按照△T/8的值持续减少第一定时提前量的值，直至第一定时提前量不会导致解调上行DMRS时超出解调窗口范围。
具体的，若起始计算得到的第一定时提前量不会导致解调上行DMRS时超出解调窗口范围，则直接将第一定时提前量发送至第一终端，以使第一终端根据第一定时提前量发送上行数据。
步骤207，判断第二定时提前量是否会导致上行解调时超出解调窗口范围。
在本步骤中，基站判断配对终端中第二终端的第二定时提前量是否会导致解调上行DMRS时超出解调窗口范围。
步骤208，若判断结果为是，则按照可调时延值的预设第二步长增加第二定时提前量的值，直至第二定时提前量不会导致上行解调时超出解调窗口范围。
在本步骤中，若判断第二定时提前量会导致解调上行DMRS时超出解调窗口范围，则按照可调时延值的预设第二步长增加第二定时提前量的值，直至第二定时提前量不会导致解调上行DMRS时超出解调窗口范围。具体的，当第二定时提前量调整至不会导致解调上行DMRS时超出解调窗口范围时，将第二定时提前量发送至第二终端，由第二终端根据第二定时提前量发送上行数据。
假设，预设可调时延值△T的预设第一步长为△T/2，预设第二步长为 △T/8，则按照△T/8的值重新调整第二定时提前量，即按照△T/8的值持续增加第二定时提前量的值，直至第二定时提前量不会导致解调上行DMRS时超出解调窗口范围。
具体的，若起始计算得到的第二定时提前量不会导致解调上行DMRS时超出解调窗口范围，则直接将第二定时提前量发送至第二终端，以使第二终端根据第二定时提前量发送上行数据。
本发明实施例还提供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前述的上行多用户多输入多输出MU-MIMO传输的方法。
如图4所示，为本发明的实施例中上行MU-MIMO传输的装置的结构框图，该装置包括：
选择模块301，配置为确定MU-MIMO配对终端中的第一终端和第二终端；
获取模块302，配置为获取配对终端之间的当前时延差；
计算模块303，配置为根据预先设置的多径信道时延和当前时延差，计算第一终端的第一定时提前量和第二终端的第二定时提前量，使得第一定时提前量和第二定时提前量之间的差值等于多径信道时延；
发送模块304，配置为将第一定时提前量发送至第一终端，将第二定时提前量发送至第二终端，以使第一终端和第二终端分别根据第一定时提前量和第二定时提前量发送上行数据。
可选的，计算模块303进一步配置为，获取第一终端的当前定时提前量和第二终端的当前定时提前量；获取配对终端的可调时延值，可调时延值为多径信道时延与当前时延差的差值；计算第一终端的当前定时提前量与可调时延值的预设第一步长的和值，获得第一定时提前量；计算第二终端的当前定时提前量与可调时延值的预设第一步长的差值，获得第二定时 提前量。
可选的，计算模块303进一步配置为，判断第一定时提前量是否会导致上行解调时超出解调窗口范围，若是，则按照可调时延值的预设第二步长减少第一定时提前量的值，直至第一定时提前量不会导致上行解调时超出解调窗口范围；其中，预设第二步长小于预设第一步长；判断第二定时提前量是否会导致上行解调时超出解调窗口范围，若是，则按照可调时延值的预设第二步长增加第二定时提前量的值，直至第二定时提前量不会导致上行解调时超出解调窗口范围。
可选的，计算模块303进一步配置为，对配对终端的上行解调参考信号DMRS进行解调，分别获取第一终端的当前定时提前量和第二终端的当前定时提前量。
可选的，获取模块302进一步配置为，对配对终端的上行DMRS进行解调，获取配对终端之间的当前时延差。
在实际应用中，所述选择模块301、获取模块302、计算模块303、发送模块304均可由中央处理单元(CPU，Central Processing Unit)、或数字信号处理(DSP，Digital Signal Processor)、或微处理器(MPU，Micro Processor Unit)、或现场可编程门阵列(FPGA，Field Programmable Gate Array)等来实现。
需要说明的是，本发明实施例还提供的上行MU-MIMO传输的装置，由于该装置解决问题的原理与前述的上行MU-MIMO传输的方法相似，因此，装置的实施过程及实施原理均可以参见前述方法的实施过程及实施原理描述(如图2及图3)，重复之处不再赘述。
以上所述的是本发明的优选实施方式，应当指出对于本技术领域的普通人员来说，在不脱离本发明所述的原理前提下还可以作出若干改进和润饰，这些改进和润饰也在本发明的保护范围内。
本领域内的技术人员应明白，本发明的实施例可提供为方法、系统、或计算机程序产品。因此，本发明可采用硬件实施例、软件实施例、或结合软件和硬件方面的实施例的形式。而且，本发明可采用在一个或多个其中包含有计算机可用程序代码的计算机可用存储介质(包括但不限于磁盘存储器和光学存储器等)上实施的计算机程序产品的形式。
本发明是参照根据本发明实施例的方法、设备(系统)、和计算机程序产品的流程图和/或方框图来描述的。应理解可由计算机程序指令实现流程图和/或方框图中的每一流程和/或方框、以及流程图和/或方框图中的流程和/或方框的结合。可提供这些计算机程序指令到通用计算机、专用计算机、嵌入式处理机或其他可编程数据处理设备的处理器以产生一个机器，使得通过计算机或其他可编程数据处理设备的处理器执行的指令产生用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的装置。
这些计算机程序指令也可存储在能引导计算机或其他可编程数据处理设备以特定方式工作的计算机可读存储器中，使得存储在该计算机可读存储器中的指令产生包括指令装置的制造品，该指令装置实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能。
这些计算机程序指令也可装载到计算机或其他可编程数据处理设备上，使得在计算机或其他可编程设备上执行一系列操作步骤以产生计算机实现的处理，从而在计算机或其他可编程设备上执行的指令提供用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的步骤。
以上所述，仅为本发明的较佳实施例而已，并非用于限定本发明的保护范围。
工业实用性
本发明实施例中，首先根据预先设置的多径信道时延和配对终端之间的当前时延差，计算得到第一终端的第一定时提前量和第二终端的第二定时提前量，使得第一定时提前量和第二定时提前量之间的差值等于多径时延，然后将第一定时提前量发送至第一终端，将第二定时提前量发送至第二终端，使得第一终端和第二终端可以分别根据第一定时提前量和第二定时提前量发送上行数据。通过调整配对终端中第一终端的第一定时提前量和第二终端的第二定时提前量，提升了MU-MIMO配对终端的上行解调性能，降低了配对终端的发射功率，从而降低了MU-MIMO功能开启后整个LTE系统中NI的提升。

Claims (11)

  1. 一种上行多用户多输入多输出MU-MIMO传输的方法，所述方法包括：
    确定MU-MIMO配对终端中的第一终端和第二终端；
    获取所述配对终端之间的当前时延差；
    根据预先设置的多径信道时延和所述当前时延差，计算所述第一终端的第一定时提前量和所述第二终端的第二定时提前量，使得所述第一定时提前量和所述第二定时提前量之间的差值等于所述多径信道时延；
    将所述第一定时提前量发送至第一终端，将所述第二定时提前量发送至第二终端，以使所述第一终端和第二终端分别根据所述第一定时提前量和所述第二定时提前量发送上行数据。
  2. 根据权利要求1所述的方法，其中，所述根据预先设置的多径信道时延和所述当前时延差，计算所述第一终端的第一定时提前量和所述第二终端的第二定时提前量，包括：
    获取所述第一终端的当前定时提前量和所述第二终端的当前定时提前量；
    获取所述配对终端的可调时延值，所述可调时延值为所述多径信道时延与所述当前时延差的差值；
    计算所述第一终端的当前定时提前量与所述可调时延值的预设第一步长的和值，获得所述第一定时提前量；
    计算所述第二终端的当前定时提前量与所述可调时延值的预设第一步长的差值，获得所述第二定时提前量。
  3. 根据权利要求2所述的方法，其中，所述根据预先设置的多径信道时延和所述当前时延差，计算所述第一终端的第一定时提前量和所述第二终端的第二定时提前量，还包括：
    判断所述第一定时提前量是否会导致上行解调时超出解调窗口范围，若是，则按照可调时延值的预设第二步长减少所述第一定时提前量的值，直至所述第一定时提前量不会导致上行解调时超出解调窗口范围；其中，所述预设第二步长小于所述预设第一步长；
    判断所述第二定时提前量是否会导致上行解调时超出解调窗口范围，若是，则按照可调时延值的预设第二步长增加所述第二定时提前量的值，直至所述第二定时提前量不会导致上行解调时超出解调窗口范围。
  4. 根据权利要求2所述的方法，其中，所述获取所述第一终端的当前定时提前量和所述第二终端的当前定时提前量，包括：
    对所述配对终端的上行解调参考信号DMRS进行解调，分别获取所述第一终端的当前定时提前量和所述第二终端的当前定时提前量。
  5. 根据权利要求1所述的方法，其中，所述获取所述配对终端之间的当前时延差，包括：
    对所述配对终端的上行DMRS进行解调，获取所述配对终端之间的当前时延差。
  6. 一种上行MU-MIMO传输的装置，所述装置包括：
    选择模块，配置为确定MU-MIMO配对终端中的第一终端和第二终端；
    获取模块，配置为获取所述配对终端之间的当前时延差；
    计算模块，配置为根据预先设置的多径信道时延和所述当前时延差，计算所述第一终端的第一定时提前量和所述第二终端的第二定时提前量，使得所述第一定时提前量和所述第二定时提前量之间的差值等于所述多径信道时延；
    发送模块，配置为将所述第一定时提前量发送至第一终端，将所述第二定时提前量发送至第二终端，以使所述第一终端和第二终端分别根据所述第一定时提前量和所述第二定时提前量发送上行数据。
  7. 根据权利要求6所述的装置，其中，所述计算模块配置为，
    获取所述第一终端的当前定时提前量和所述第二终端的当前定时提前量；获取所述配对终端的可调时延值，所述可调时延值为所述多径信道时延与所述当前时延差的差值；计算所述第一终端的当前定时提前量与所述可调时延值的预设第一步长的和值，获得所述第一定时提前量；计算所述第二终端的当前定时提前量与所述可调时延值的预设第一步长的差值，获得所述第二定时提前量。
  8. 根据权利要求7所述的装置，其中，所述计算模块配置为，
    判断所述第一定时提前量是否会导致上行解调时超出解调窗口范围，若是，则按照可调时延值的预设第二步长减少所述第一定时提前量的值，直至所述第一定时提前量不会导致上行解调时超出解调窗口范围；其中，所述预设第二步长小于所述预设第一步长；判断所述第二定时提前量是否会导致上行解调时超出解调窗口范围，若是，则按照可调时延值的预设第二步长增加所述第二定时提前量的值，直至所述第二定时提前量不会导致上行解调时超出解调窗口范围。
  9. 根据权利要求7所述的装置，其中，所述计算模块配置为，
    对所述配对终端的上行解调参考信号DMRS进行解调，分别获取所述第一终端的当前定时提前量和所述第二终端的当前定时提前量。
  10. 根据权利要求6所述的装置，其中，所述获取模块配置为，
    对所述配对终端的上行DMRS进行解调，获取所述配对终端之间的当前时延差。
  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至5任一项所述的上行多用户多输入多输出MU-MIMO传输的方法。
PCT/CN2016/073552 2015-05-26 2016-02-04 上行mu-mimo传输的方法、装置及存储介质 WO2016188147A1 (zh)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3934354A4 (en) * 2019-03-27 2022-04-13 Huawei Technologies Co., Ltd. USER PAIRING METHOD AND ASSOCIATED APPARATUS

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101594217A (zh) * 2008-05-28 2009-12-02 中国移动通信集团公司 一种多用户多输入多输出系统的数据发送方法及装置
CN102036391A (zh) * 2010-12-09 2011-04-27 中兴通讯股份有限公司 基于终端服务等级的上行mu-mimo传输方法及基站
WO2012033877A1 (en) * 2010-09-08 2012-03-15 Mediatek Singapore Pte. Ltd. Psmp-based downlink multi-user mimo communications
US20130034003A1 (en) * 2011-08-02 2013-02-07 Celeno Communications (Israel) Ltd. Carrier grouping schemes for wireless local area networks
US20140161110A1 (en) * 2011-07-14 2014-06-12 Lg Electronics Inc. Method and device for allocating multi transmission timing to at least one timing advance group in a wireless access system for supporting carrier aggregation

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101572577B (zh) * 2008-04-30 2012-11-28 电信科学技术研究院 一种实现上行发送定时提前的方法和装置
CN101998614B (zh) * 2009-08-17 2015-07-22 中兴通讯股份有限公司 一种上行信号同步的方法及系统
CN103001686B (zh) * 2011-09-16 2015-04-29 普天信息技术研究院有限公司 一种分布式天线系统的上行接收方法

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101594217A (zh) * 2008-05-28 2009-12-02 中国移动通信集团公司 一种多用户多输入多输出系统的数据发送方法及装置
WO2012033877A1 (en) * 2010-09-08 2012-03-15 Mediatek Singapore Pte. Ltd. Psmp-based downlink multi-user mimo communications
CN102036391A (zh) * 2010-12-09 2011-04-27 中兴通讯股份有限公司 基于终端服务等级的上行mu-mimo传输方法及基站
US20140161110A1 (en) * 2011-07-14 2014-06-12 Lg Electronics Inc. Method and device for allocating multi transmission timing to at least one timing advance group in a wireless access system for supporting carrier aggregation
US20130034003A1 (en) * 2011-08-02 2013-02-07 Celeno Communications (Israel) Ltd. Carrier grouping schemes for wireless local area networks

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3934354A4 (en) * 2019-03-27 2022-04-13 Huawei Technologies Co., Ltd. USER PAIRING METHOD AND ASSOCIATED APPARATUS

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