WO2021189237A1 - 一种用户配对方法及系统 - Google Patents

一种用户配对方法及系统 Download PDF

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Publication number
WO2021189237A1
WO2021189237A1 PCT/CN2020/080838 CN2020080838W WO2021189237A1 WO 2021189237 A1 WO2021189237 A1 WO 2021189237A1 CN 2020080838 W CN2020080838 W CN 2020080838W WO 2021189237 A1 WO2021189237 A1 WO 2021189237A1
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paired
user equipment
user
transmission time
information
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French (fr)
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方冬梅
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Hytera Communications Corp Ltd
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Hytera Communications Corp Ltd
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Priority to PCT/CN2020/080838 priority Critical patent/WO2021189237A1/zh
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/02—Services making use of location information

Definitions

  • the present invention relates to the field of communication technology, in particular to a user pairing method and system.
  • MU-MIMO Multiple User-Multiple Input Multiple Output
  • MU-MIMO is a space diversity technology that doubles the capacity and spectrum utilization of the communication system without increasing the system bandwidth;
  • the use of diversity to reduce the impact of multipath fading, effectively eliminate co-channel interference, improve channel reliability, and reduce bit error rate is the key technology adopted by the new generation of mobile communication systems.
  • Uplink MU-MIMO Different users use the same time-frequency resources for uplink transmission (single antenna transmission). From the receiving end, these data streams are equivalent to different antennas from a user terminal, thus forming a virtual MIMO system.
  • Downlink MU-MIMO multiple data streams are transmitted to different user terminals on the same time-frequency resource, and multiple user terminals and eNBs form a downlink MU-MIMO system.
  • the user pairing algorithm is the key to whether MU-MIMO can gain gain. If the channel correlation of the paired users is high, even negative gain will appear.
  • the present invention provides a user pairing method and system, which realizes user pairing when the product has no SRS configuration, and simplifies the computational complexity.
  • a user pairing method is applied to the MU-MIMO system, and the method includes:
  • the preset pairing condition includes: the distance parameter between the user equipment to be paired is greater than a first threshold threshold, and the narrowband transmission time between the user equipment to be paired is greater than the second threshold threshold and the to-be-paired user equipment.
  • the broadband transfer time between paired user equipment is greater than the third threshold threshold.
  • the method further includes:
  • the distance parameter between the user equipment to be paired is calculated and obtained according to the positioning information.
  • the method further includes:
  • the user equipment to be paired is controlled to send information through a narrowband, and the signal transmission time between the user equipment to be paired is estimated.
  • the method further includes:
  • the user equipment to be paired includes a first user equipment and a second user equipment;
  • the arrival delay of the signal obtained by the second device is determined as the broadband transmission time.
  • the method further includes:
  • the method further includes:
  • the user equipment with a larger distance parameter, a larger narrowband transmission time, and a larger broadband transmission time are paired preferentially.
  • a user pairing system applied to the MU-MIMO system includes:
  • the collection unit is used to collect information parameters between the user equipment to be paired;
  • a judging unit configured to judge whether the information parameter satisfies a preset pairing condition, and if so, determine the user equipment to be paired as a paired device;
  • the preset pairing condition includes: the distance parameter between the user equipment to be paired is greater than a first threshold threshold, and the narrowband transmission time between the user equipment to be paired is greater than the second threshold threshold and the to-be-paired user equipment.
  • the broadband transfer time between paired user equipment is greater than the third threshold threshold.
  • system further includes:
  • the first information obtaining unit is configured to collect the positioning information of the user equipment to be paired; calculate and obtain the distance parameter between the user equipment to be paired according to the positioning information;
  • the second information acquiring unit is configured to control the user equipment to be paired to send information through a narrowband, and to estimate the signal transmission time between the user equipment to be paired;
  • the third information acquiring unit is configured to connect the user equipment to be paired with the base station respectively, wherein the user equipment to be paired includes a first user equipment and a second user equipment; based on the timing of the base station, control The first user equipment sends a signal to the second user equipment; the arrival delay of the signal obtained by the second device is determined as the broadband delivery time.
  • system further includes:
  • the proving unit is configured to prove that the user equipment to be paired cannot be paired when the information parameter does not satisfy any one of the preset conditions.
  • the pairing determination unit is configured to, when there are multiple user equipments to be paired, and the multiple user equipments to be paired meet the preset conditions, the distance parameter is larger, the narrowband transmission time is larger, and the broadband transmission time is larger. Larger user devices are paired preferentially.
  • a storage medium includes a stored program, and the program executes the user pairing method described in any one of the above items.
  • a processor for running a program wherein the user pairing method described in any one of the above is executed when the program is running.
  • the present invention provides a user pairing method and system.
  • the method collects information parameters between user equipment to be paired; determines whether the information parameters meet the preset pairing conditions, and if so, then The user equipment to be paired is determined as a paired device.
  • the collected information parameters mainly include distance parameters between user equipment, narrowband transmission time, and broadband transmission time. In this way, the unique D2D function in the private network is used to obtain the transmission time.
  • the user equipment does not need to transmit uplink SRS, but still The user equipment can be paired, and there is no need to calculate the correlation matrix between the user equipment and the user AoA/AoD, so the purpose of simple calculation is achieved.
  • FIG. 1 is a schematic flowchart of a user pairing method provided by an embodiment of the present invention
  • FIG. 2 is a schematic diagram of a user pairing scenario provided by an embodiment of the present invention.
  • FIG. 3 is a schematic diagram of another user pairing scenario provided by an embodiment of the present invention.
  • Fig. 4 is a schematic structural diagram of a user pairing system provided by an embodiment of the present invention.
  • a user pairing method is provided, which is applied to a MU-MIMO system.
  • the method includes:
  • S101 Collect information parameters between user equipment to be paired.
  • S102 Determine whether the information parameter meets a preset pairing condition, and if so, perform S103;
  • private network communications refers to a dedicated communications system used in public security, traffic police, fire protection, armed police, government affairs, emergency command and other industries, that is, it refers to In some industries, departments or units, communication networks are built to meet the needs of organization and management, safe production, dispatching and command, etc.
  • private network wireless communication system can be divided into terminal layer, system layer and application layer.
  • the terminal layer refers to the handheld terminals, vehicle-mounted terminals used by end users, and data transmission terminals for data collection and upload, etc., through the air interface provided by the system layer to access the system to achieve communication;
  • the system layer includes wireless access Base station, core switching center and other external gateway equipment, the system layer completes terminal air interface access, call signaling processing, voice encoding and decoding, and routing and switching of business data (voice, SMS) and other functions, and communicates with external gateway equipment through external gateway equipment.
  • the application layer has application layer interfaces based on the system layer open, and application equipment developed according to user application scenarios. Typical application layer equipment includes dispatching consoles, recording equipment, GIS, etc.
  • the principle of the user pairing method provided by the embodiment of the present invention is: a criterion for whether MU-MIMO can obtain gain is whether the spectrum efficiency after pairing can be greater than the spectrum efficiency before pairing.
  • the spectrum efficiency after pairing is positively correlated with the signal-to-interference plus Noise Ratio (Signal to Interference plus Noise Ratio) of the paired user equipment, and has an inverse correlation with the channel correlation between the paired user equipment.
  • the channel correlation between the paired user equipments and the distance between the user equipments are in an inverse correlation.
  • the spectrum efficiency after pairing has a positive correlation with the distance between the user equipment.
  • the distance information between users can be obtained through GPS (Global System for Mobile communication, Global Positioning System).
  • the distance d between the users or the signal transmission time t can be used as a judgment condition for the users to be able to pair.
  • the information parameters collected in the embodiment of the present invention include: the distance parameter between the user equipment, the narrowband transmission time between the user equipment, and the broadband transmission time between the user equipment.
  • the method of collecting information parameters includes:
  • Collect positioning information of the user equipment to be paired calculate the distance parameter between the user equipment to be paired according to the positioning information.
  • the user equipment to be paired is controlled to send information through a narrowband, and the signal transmission time between the user equipment to be paired is estimated.
  • the user equipment to be paired includes a first user equipment and a second user equipment; based on the timing of the base station, the first user equipment is controlled to communicate with the base station.
  • the second user equipment sends a signal; the arrival delay of the signal obtained by the second device is determined as a broadband delivery time.
  • the preset pairing conditions include: the distance parameter between the user equipment to be paired is greater than a first threshold threshold, and the narrowband transmission time between the user equipment to be paired is greater than the second threshold threshold and the to-be-paired user equipment.
  • the broadband transfer time between paired user equipment is greater than the third threshold threshold.
  • the distance between user equipment d, the measurement value of the narrowband D2D transmission time between users t1, the measurement value of the broadband D2D transmission time between users t2 can be obtained through the control center (these three items may not be acquired, but at least Ensure that one or more of them can be obtained):
  • the control center calculates the distance d between users through the user's GPS information.
  • Obtain the measured value t1 of the narrowband D2D transmission time users exchange messages through the narrowband D2D function to estimate the signal transmission time between users. All users send the measured value t1 of the D2D delivery time to the control center.
  • the method can be: two users are connected to the base station to obtain the timing of the base station, where user A sends a signal to user B, such as a synchronization signal, then the arrival time of the synchronization signal obtained by user B The delay is the measured value t2 of the broadband D2D transfer time. The user sends the obtained measured value t2 of the D2D delivery time to the control center.
  • the control center uses the obtained distance d between users, the measured value of the narrowband D2D transmission time between users t1, and the measured value of the broadband D2D transmission time between users t2 to select the uplink and downlink MU-MIMO paired users:
  • control center obtains the distance d between users, it is judged whether d is greater than the first pairing threshold, and if it is not greater than the distance d, no pairing is performed.
  • control center obtains the measured value t1 of the narrowband D2D transmission time between users, it is judged whether t1 is greater than the second threshold of the pairing, and if it is not greater than that, no pairing is performed.
  • control center obtains the measured value t2 of the broadband D2D transmission time between users, it is judged whether t2 is greater than the third pairing threshold, and if it is not greater than that, no pairing is performed.
  • the embodiment of the present invention further includes:
  • the method further includes:
  • the user equipments with a larger distance parameter, a larger narrowband transmission time, and a larger broadband transmission time are preferentially paired.
  • the base station may only obtain one or two of d, t1, and t2, and there are several judgments.
  • the user pair with a large d, a large t1, and a large t2 will be selected first for pairing.
  • the pairing threshold will be adjusted according to the number of base station antennas, the current multipath situation of the wireless environment, and the quality of the wireless channel.
  • the present invention provides a user pairing method, which collects information parameters between user equipment to be paired; determines whether the information parameters meet a preset pairing condition, and if so, determines the user equipment to be paired Is a paired device.
  • the collected information parameters mainly include distance parameters between user equipment, narrowband transmission time, and broadband transmission time. In this way, the unique D2D function in the private network is used to obtain the transmission time.
  • the user equipment does not need to transmit uplink SRS, but still The user equipment can be paired, and there is no need to calculate the correlation matrix between the user equipment and the user AoA/AoD, so the purpose of simple calculation is achieved.
  • FIG. 2 for a schematic diagram of a user pairing scenario provided by an embodiment of the present invention.
  • the user is suitable for pairing.
  • the downlink MU-MIMO can obtain the SINR through the CQI reported by the user
  • the uplink MU-MIMO can obtain the SINR through the measurement of the uplink signal transmitted by the user by the base station.
  • FIG. 3 is a schematic diagram of another user pairing scenario provided by an embodiment of the present invention.
  • the user is not suitable for pairing.
  • a user pairing system is also provided, which is applied to a MU-MIMO system.
  • the system includes:
  • the collection unit 10 is configured to collect information parameters between user equipment to be paired;
  • the determining unit 20 is configured to determine whether the information parameter meets a preset pairing condition, and if so, determine the user equipment to be paired as a paired device;
  • the preset pairing condition includes: the distance parameter between the user equipment to be paired is greater than a first threshold threshold, and the narrowband transmission time between the user equipment to be paired is greater than the second threshold threshold and the to-be-paired user equipment.
  • the broadband transfer time between paired user equipment is greater than the third threshold threshold.
  • system further includes:
  • the first information obtaining unit is configured to collect the positioning information of the user equipment to be paired; calculate and obtain the distance parameter between the user equipment to be paired according to the positioning information;
  • the second information acquiring unit is configured to control the user equipment to be paired to send information through a narrowband, and to estimate the signal transmission time between the user equipment to be paired;
  • the third information acquiring unit is configured to connect the user equipment to be paired with the base station respectively, wherein the user equipment to be paired includes a first user equipment and a second user equipment; based on the timing of the base station, control The first user equipment sends a signal to the second user equipment; the arrival delay of the signal obtained by the second device is determined as the broadband delivery time.
  • system further includes:
  • the proving unit is configured to prove that the user equipment to be paired cannot be paired when the information parameter does not satisfy any one of the preset conditions.
  • the pairing determination unit is configured to, when there are multiple user equipments to be paired, and the multiple user equipments to be paired meet the preset conditions, the distance parameter is larger, the narrowband transmission time is larger, and the broadband transmission time is larger.
  • the larger user device is paired.
  • the present invention provides a user pairing system.
  • the system collection unit collects information parameters between user equipment to be paired; the judgment unit judges whether the information parameters meet the preset pairing conditions, and if yes ,
  • the user equipment to be paired is determined as a paired device.
  • the collected information parameters mainly include distance parameters between user equipment, narrowband transmission time, and broadband transmission time. In this way, the unique D2D function in the private network is used to obtain the transmission time.
  • the user equipment does not need to transmit uplink SRS, but still The user equipment can be paired, and there is no need to calculate the correlation matrix between the user equipment and the user AoA/AoD, so the purpose of simple calculation is achieved.
  • the user pairing system includes a processor and a memory.
  • the above-mentioned collection unit and the judgment unit are all stored in the memory as a program unit, and the processor executes the above-mentioned program unit stored in the memory to realize corresponding functions.
  • the processor contains the kernel, and the kernel calls the corresponding program unit from the memory.
  • the kernel can be set to one or more, by adjusting the kernel parameters to XXXX (the purpose of the present invention).
  • the memory may include non-permanent memory in computer-readable media, random access memory (RAM) and/or non-volatile memory, such as read-only memory (ROM) or flash memory (flash RAM), and the memory includes at least one Memory chip.
  • RAM random access memory
  • ROM read-only memory
  • flash RAM flash random access memory
  • the embodiment of the present invention provides a storage medium on which a program is stored, and when the program is executed by a processor, the user pairing method is implemented.
  • the embodiment of the present invention provides a processor configured to run a program, wherein the user pairing method is executed when the program is running.
  • the embodiment of the present invention provides a device.
  • the device includes a processor, a memory, and a program stored on the memory and capable of running on the processor, and the processor implements the following steps when the program is executed:
  • the preset pairing condition includes: the distance parameter between the user equipment to be paired is greater than a first threshold threshold, and the narrowband transmission time between the user equipment to be paired is greater than the second threshold threshold and the to-be-paired user equipment.
  • the broadband transfer time between paired user equipment is greater than the third threshold threshold.
  • the method also includes:
  • the distance parameter between the user equipment to be paired is calculated and obtained according to the positioning information.
  • the method also includes:
  • the user equipment to be paired is controlled to send information through a narrowband, and the signal transmission time between the user equipment to be paired is estimated.
  • the method also includes:
  • the user equipment to be paired includes a first user equipment and a second user equipment;
  • the arrival delay of the signal obtained by the second device is determined as the broadband transmission time.
  • the method also includes:
  • the method further includes:
  • the user equipments with a larger distance parameter, a larger narrowband transmission time, and a larger broadband transmission time are preferentially paired.
  • the devices in this article can be servers, PCs, PADs, mobile phones, etc.
  • This application also provides a computer program product, which when executed on a data processing device, is suitable for executing a program that initializes the following method steps:
  • the preset pairing condition includes: the distance parameter between the user equipment to be paired is greater than a first threshold threshold, and the narrowband transmission time between the user equipment to be paired is greater than the second threshold threshold and the to-be-paired user equipment The broadband transmission time between paired user equipments is greater than the third threshold threshold.
  • the method also includes:
  • the distance parameter between the user equipment to be paired is calculated and obtained according to the positioning information.
  • the method also includes:
  • the user equipment to be paired is controlled to send information through a narrowband, and the signal transmission time between the user equipment to be paired is estimated.
  • the method also includes:
  • the user equipment to be paired includes a first user equipment and a second user equipment;
  • control the first user equipment Based on the timing of the base station, control the first user equipment to send a signal to the second user equipment;
  • the arrival delay of the signal obtained by the second device is determined as the broadband transmission time.
  • the method also includes:
  • the method further includes:
  • the user equipments with a larger distance parameter, a larger narrowband transmission time, and a larger broadband transmission time are preferentially paired.
  • this application can be provided as methods, systems, or computer program products. Therefore, this application may adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Moreover, this application may adopt the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program codes.
  • computer-usable storage media including but not limited to disk storage, CD-ROM, optical storage, etc.
  • These computer program instructions can also be stored in a computer-readable memory that can guide a computer or other programmable data processing equipment to work in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture including the instruction device.
  • the device implements the functions specified in one process or multiple processes in the flowchart and/or one block or multiple blocks in the block diagram.
  • These computer program instructions can also be loaded on a computer or other programmable data processing equipment, so that a series of operation steps are executed on the computer or other programmable equipment to produce computer-implemented processing, so as to execute on the computer or other programmable equipment.
  • the instructions provide steps for implementing the functions specified in one process or multiple processes in the flowchart and/or one block or multiple blocks in the block diagram.
  • the computing device includes one or more processors (CPUs), input/output interfaces, network interfaces, and memory.
  • processors CPUs
  • input/output interfaces network interfaces
  • memory volatile and non-volatile memory
  • the memory may include non-permanent memory in a computer-readable medium, random access memory (RAM) and/or non-volatile memory, such as read-only memory (ROM) or flash memory (flash RAM).
  • RAM random access memory
  • ROM read-only memory
  • flash RAM flash memory
  • Computer-readable media include permanent and non-permanent, removable and non-removable media, and information storage can be realized by any method or technology.
  • the information can be computer-readable instructions, data structures, program modules, or other data.
  • Examples of computer storage media include, but are not limited to, phase change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other memory technology, CD-ROM, digital versatile disc (DVD) or other optical storage, Magnetic cassettes, magnetic tape magnetic disk storage or other magnetic storage devices or any other non-transmission media can be used to store information that can be accessed by computing devices. According to the definition in this article, computer-readable media does not include transitory media, such as modulated data signals and carrier waves.
  • this application can be provided as a method, a system, or a computer program product. Therefore, this application may adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Moreover, this application may adopt the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program codes.
  • a computer-usable storage media including but not limited to disk storage, CD-ROM, optical storage, etc.

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Abstract

本发明公开了一种用户配对方法及系统，该方法通过采集待配对的用户设备之间的信息参数；判断所述信息参数是否满足预设配对条件，如果是，则将所述待配对的用户设备确定为配对设备。其中，采集的信息参数主要包括用户设备之间的距离参数、窄带传递时间和宽带传递时间，这样使用了专网中特有的D2D功能来获取传递时间，该方法中用户设备无需发射上行SRS，仍能进行用户设备配对，并且无需计算用户设备间相关性矩阵和用户AoA/AoD，因此实现了运算简单的目的。

Description

一种用户配对方法及系统 技术领域
本发明涉及通信技术领域，特别是涉及一种用户配对方法及系统。
背景技术
多用户-多输入多输出(Multiple User-Multiple Input Multiple Output，简称为MU-MIMO)是一种空间分集技术，在不增加系统带宽的情况下成倍地提高通信系统的容量和频谱利用率；利用分集来减轻多径衰落的影响，并能有效地消除共道干扰，提高信道的可靠性，降低误码率，是新一代移动通信系统采用的关键技术。
MU-MIMO技术分为上行和下行。上行MU-MIMO：不同用户使用相同的时频资源进行上行发送(单天线发送)，从接收端来看，这些数据流等同于来自一个用户终端的不同天线，从而构成了一个虚拟的MIMO系统。下行MU-MIMO：将多个数据流在相同的时频资源传输给不同的用户终端，多个用户终端以及eNB构成下行MU-MIMO系统。而用户配对算法是MU-MIMO能否获得增益的关键。如果配对用户的信道相关性高，甚至会出现负增益。
现有的配对算法，无论是计算信道容量、信道相关性、抑或是AoA(Angle-of-Arrival，到达角度)/DoA(Direction-of-Arrival，波达方向)信息，都需要基站获得终端和基站之间的无线信道信息。而若需要获得终端到基站的无线信道信息，一种常见的做法是通过上行SRS信号(Sounding Reference Signal，探测参考信号)获得。但是上行SRS非标配，比如现在某些宽带产品就没有SRS。并且现有算法均有一个问题，就是运算复杂度比较大。
发明内容
针对于上述问题，本发明提供一种用户配对方法及系统，实现在产品没有 SRS配置的情况下进行用户配对，并且简化了运算复杂度。
为了实现上述目的，本发明提供了如下技术方案：
一种用户配对方法，应用于MU-MIMO系统，该方法包括：
采集待配对的用户设备之间的信息参数；
判断所述信息参数是否满足预设配对条件，如果是，则将所述待配对的用户设备确定为配对设备；
其中，所述预设配对条件包括：所述待配对的用户设备之间的距离参数大于第一门限阈值，所述待配对的用户设备之间的窄带传递时间大于第二门限阈值和所述待配对的用户设备之间的宽带传递时间大于第三门限阈值。
可选地，该方法还包括：
采集待配对的用户设备的定位信息；
依据所述定位信息计算获得待配对的用户设备之间的距离参数。
可选地，该方法还包括：
控制所述待配对的用户设备通过窄带进行信息发送，并估算所述待配对的用户设备之间的信号传递时间。
可选地，该方法还包括：
将所述待配对的用户设备分别与基站进行连接，其中，所述待配对的用户设备包括第一用户设备和第二用户设备；
基于所述基站的定时，控制所述第一用户设备向所述第二用户设备发送信号；
将所述第二设备获得所述信号的到达时延确定为宽带传递时间。
可选地，该方法还包括：
当所述信息参数不满足所述预设条件中的任意一项时，则证明所述待配对的用户设备不能进行配对。
可选地，当有多个待配对的用户设备，且所述多个待配对的用户设备均满足于所述预设条件时，该方法还包括：
将距离参数较大、窄带传递时间较大和宽带传递时间较大的用户设备进行 优先配对。
一种用户配对系统，应用于MU-MIMO系统，该系统包括：
采集单元，用于采集待配对的用户设备之间的信息参数；
判断单元，用于判断所述信息参数是否满足预设配对条件，如果是，则将所述待配对的用户设备确定为配对设备；
其中，所述预设配对条件包括：所述待配对的用户设备之间的距离参数大于第一门限阈值，所述待配对的用户设备之间的窄带传递时间大于第二门限阈值和所述待配对的用户设备之间的宽带传递时间大于第三门限阈值。
可选地，该系统还包括：
第一信息获取单元，用于采集待配对的用户设备的定位信息；依据所述定位信息计算获得待配对的用户设备之间的距离参数；
第二信息获取单元，用于控制所述待配对的用户设备通过窄带进行信息发送，并估算所述待配对的用户设备之间的信号传递时间；
第三信息获取单元，用于将所述待配对的用户设备分别与基站进行连接，其中，所述待配对的用户设备包括第一用户设备和第二用户设备；基于所述基站的定时，控制所述第一用户设备向所述第二用户设备发送信号；将所述第二设备获得所述信号的到达时延确定为宽带传递时间。
可选地，该系统还包括：
证明单元，用于当所述信息参数不满足所述预设条件中的任意一项时，则证明所述待配对的用户设备不能进行配对。
配对确定单元，用于当有多个待配对的用户设备，且所述多个待配对的用户设备均满足于所述预设条件时，将距离参数较大、窄带传递时间较大和宽带传递时间较大的用户设备进行优先配对。
一种存储介质，所述存储介质包括存储的程序，所述程序执行上述任意一项所述的用户配对方法。
一种处理器，所述处理器用于运行程序，其中，所述程序运行时执行上述中任意一项所述的用户配对方法。
相较于现有技术，本发明提供了一种用户配对方法及系统，该方法通过采集待配对的用户设备之间的信息参数；判断所述信息参数是否满足预设配对条件，如果是，则将所述待配对的用户设备确定为配对设备。其中，采集的信息参数主要包括用户设备之间的距离参数、窄带传递时间和宽带传递时间，这样使用了专网中特有的D2D功能来获取传递时间，该方法中用户设备无需发射上行SRS，仍能进行用户设备配对，并且无需计算用户设备间相关性矩阵和用户AoA/AoD，因此实现了运算简单的目的。
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，还可以根据提供的附图获得其它的附图。
图1为本发明实施例提供的一种用户配对方法的流程示意图；
图2为本发明实施例提供的一种用户配对的场景示意图；
图3为本发明实施例提供的另一种用户配对的场景示意图；
图4为本发明实施例提供的一种用户配对系统的结构示意图。
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做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。
本发明的说明书和权利要求书及上述附图中的术语“第一”和“第二”等是用于区别不同的对象，而不是用于描述特定的顺序。此外术语“包括”和“具有”以及他们任何变形，意图在于覆盖不排他的包含。例如包含了一系列步骤或单元的过程、方法、系统、产品或设备没有设定于已列出的步骤或单元，而是可包括没有列出的步骤或单元。
在本发明实施例中提供了一种用户配对方法，该方法应用于MU-MIMO系统，参见图1，该方法包括：
S101、采集待配对的用户设备之间的信息参数；
S102、判断所述信息参数是否满足预设配对条件，如果是，则执行S103；
S103、将所述待配对的用户设备确定为配对设备。
本发明实施例应用于通信领域，具体应用于专网通信，其中，专网通信是指为公安、交警、消防、武警、政务、应急指挥等行业领域应用的专用通信系统，即其是指在一些行业、部门或单位内部,为满足其进行组织管理、安全生产、调度指挥等需要所建设的通信网路。在专网无线通信系统可分为终端层、系统层和应用层。其中，终端层是指最终用户所使用的手持终端、车载终端，以及用于数据采集和上传的数传终端等，通过系统层所提供的空中接口接入系统实现通信；系统层包括无线接入基站、核心交换中心及其他对外网关设备，系统层完成终端的空口接入，呼叫信令的处理、语音编解码以及业务数据(语音、短信)的路由交换等功能，并通过对外网关设备与外网联通；应用层有基于系统层开放的应用层接口、根据用户应用场景开发的应用设备，典型的应用层设备有调度台、录音设备、GIS等。
在专网通信领域，警用数字集群(Police Digital Trunking，PDT)系统、陆上集群无线电(Terrestrial Trunked Radio，Tetra)系统和P25(Project25)、数字移动无线电标准DMR是几种主流的系统，它们都属于窄带集群系统。PDT、Tetra、DMR和P25等窄带集群通信系统能为用户提供良好的窄带语音业务，但在数据业务方面存在传输低速率的缺点，无法满足图像和数据等日益增长的宽带业务的需求，为解决这一问题，业界普遍看好窄带系统加宽带系统的宽窄带集群融合方式，宽带系统例如长期演进(Long Term Evolution，LTE)系统，宽窄带集群融合方式例如：PDT+LTE、Tetra+LTE、P25+LTE、DMR+LTE等。
本发明实施例提供的用户配对方法的原理是：MU-MIMO能否获得增益的一个准则是配对后的频谱效率是否能够大于配对前频谱效率。配对后的频谱效率和配对用户设备的信噪比SINR(Signal to Interference plus Noise Ratio，信号 与干扰加噪声比)成正相关关系，和配对用户设备之间的信道相关性成反相关关系。配对用户设备之间的信道相关性和用户设备之间的距离成反相关关系。
所以配对后的频谱效率和用户设备之间的距离成正相关关系。对于专网通信，可以通过GPS(Global System for Mobile communication，全球定位系统)获得用户之间的距离信息。对于专网通信，还可以通过窄带D2D(Device-to-Device，设备到设备)获得用户设备之间的信号传递时间t，该传递时间和用户之间的距离d成正比。即有d＝C*t。其中C是光速。该用户之间的距离d或者信号传递时间t，可作为用户能够进行配对的判断条件。
因此，在本发明实施例中采集的信息参数包括：用户设备之间的距离参数、用户设备之间的窄带传递时间和用户设备之间的宽带传递时间。
具体的，采集信息参数的方法包括：
采集待配对的用户设备的定位信息；依据所述定位信息计算获得待配对的用户设备之间的距离参数。
控制所述待配对的用户设备通过窄带进行信息发送，并估算所述待配对的用户设备之间的信号传递时间。
将所述待配对的用户设备分别与基站进行连接，其中，所述待配对的用户设备包括第一用户设备和第二用户设备；基于所述基站的定时，控制所述第一用户设备向所述第二用户设备发送信号；将所述第二设备获得所述信号的到达时延确定为宽带传递时间。
因此，所述预设配对条件包括：所述待配对的用户设备之间的距离参数大于第一门限阈值，所述待配对的用户设备之间的窄带传递时间大于第二门限阈值和所述待配对的用户设备之间的宽带传递时间大于第三门限阈值。
举例说明，可以通过控制中心获得用户设备之间的距离d、用户间的窄带D2D传递时间的测量值t1、用户间的宽带D2D传递时间的测量值t2(这三项可以不用全部获取，但至少保证有一项或以上能获取到)：
获取用户之间的距离d：控制中心通过用户的GPS信息计算用户之间的距离d。
获得窄带D2D传递时间的测量值t1：用户通过窄带D2D功能互发信息，估算用户之间的信号传递时间。所有用户将D2D传递时间的测量值t1发送给控制中心。
获得宽带D2D传递时间的测量值t2，方法可有：两个用户和基站连接，可获得基站的定时，其中用户A向用户B发送信号，如同步信号，则用户B获得的同步信号的到达时延即为宽带D2D传递时间的测量值t2。用户将所获得的D2D传递时间的测量值t2发送给控制中心。
控制中心利用得到的用户之间的距离d、用户间的窄带D2D传递时间的测量值t1、用户间的宽带D2D传递时间的测量值t2，挑选上下行MU-MIMO配对用户：
如果控制中心获得用户之间的距离d，判断d是否大于配对第一门限，如果不大于就不配对。
如果控制中心获得用户间的窄带D2D传递时间的测量值t1，判断t1是否大于配对第二门限，如果不大于就不配对。
如果控制中心获得用户间的宽带D2D传递时间的测量值t2，判断t2是否大于配对第三门限，如果不大于就不配对。
对应的，在本发明实施例中还包括：
当所述信息参数不满足所述预设条件中的任意一项时，则证明所述待配对的用户设备不能进行配对。
当有多个待配对的用户设备，且所述多个待配对的用户设备均满足于所述预设条件时，该方法还包括：
将距离参数较大、窄带传递时间较大和宽带传递时间较大的用户设备进行优先配对。
需要说明的是，三个信息可以只获取一个进行判断，只要其中一个条件不满足就不配对，因为不满足的话容易出现配对后总额谱效率负增益的问题。
即基站可能只能获得d、t1、t2的其中一项或者两项，有几项判断几项。
上述d、t1、t2只要其中一个条件不满足就不配对。因为不满足的话容易 出现配对后总频谱效率负增益的问题。
如果有多个用户对均满足d、t1、t2三个判断条件，则优先挑选d大、t1大、t2大的用户对进行配对。
配对门限将根据基站天线数、当前无线环境多径情况、无线信道质量进行调整。
本发明提供了一种用户配对方法，该方法通过采集待配对的用户设备之间的信息参数；判断所述信息参数是否满足预设配对条件，如果是，则将所述待配对的用户设备确定为配对设备。其中，采集的信息参数主要包括用户设备之间的距离参数、窄带传递时间和宽带传递时间，这样使用了专网中特有的D2D功能来获取传递时间，该方法中用户设备无需发射上行SRS，仍能进行用户设备配对，并且无需计算用户设备间相关性矩阵和用户AoA/AoD，因此实现了运算简单的目的。
参见图2为本发明实施例提供的一种用户配对的场景示意图。当通过GPS信息知道用户距离较远，或者通过D2D测量的传递时间较大，只要用户的SINR满足，则用户适合配对。其中，下行MU-MIMO可以通过用户上报的CQI获得SINR，上行MU-MIMO可以通过基站对用户发射的上行信号测量获得SINR。
参见图3为本发明实施例提供的另一种用户配对的场景示意图，当通过GPS信息知道用户距离较近，或者通过D2D测量的传递时间较小且小于配对门限，则用户不适合配对。
在本发明的另一实施例中还提供了一种用户配对系统，应用于MU-MIMO系统，参见图4，该系统包括：
采集单元10，用于采集待配对的用户设备之间的信息参数；
判断单元20，用于判断所述信息参数是否满足预设配对条件，如果是，则将所述待配对的用户设备确定为配对设备；
其中，所述预设配对条件包括：所述待配对的用户设备之间的距离参数大于第一门限阈值，所述待配对的用户设备之间的窄带传递时间大于第二门限阈 值和所述待配对的用户设备之间的宽带传递时间大于第三门限阈值。
在上述实施例的基础上，该系统还包括：
第一信息获取单元，用于采集待配对的用户设备的定位信息；依据所述定位信息计算获得待配对的用户设备之间的距离参数；
第二信息获取单元，用于控制所述待配对的用户设备通过窄带进行信息发送，并估算所述待配对的用户设备之间的信号传递时间；
第三信息获取单元，用于将所述待配对的用户设备分别与基站进行连接，其中，所述待配对的用户设备包括第一用户设备和第二用户设备；基于所述基站的定时，控制所述第一用户设备向所述第二用户设备发送信号；将所述第二设备获得所述信号的到达时延确定为宽带传递时间。
在上述实施例的基础上，该系统还包括：
证明单元，用于当所述信息参数不满足所述预设条件中的任意一项时，则证明所述待配对的用户设备不能进行配对。
配对确定单元，用于当有多个待配对的用户设备，且所述多个待配对的用户设备均满足于所述预设条件时，将距离参数较大、窄带传递时间较大和宽带传递时间较大的用户设备进行配对。
相较于现有技术，本发明提供了一种用户配对系统，该系统采集单元通过采集待配对的用户设备之间的信息参数；判断单元判断所述信息参数是否满足预设配对条件，如果是，则将所述待配对的用户设备确定为配对设备。其中，采集的信息参数主要包括用户设备之间的距离参数、窄带传递时间和宽带传递时间，这样使用了专网中特有的D2D功能来获取传递时间，该方法中用户设备无需发射上行SRS，仍能进行用户设备配对，并且无需计算用户设备间相关性矩阵和用户AoA/AoD，因此实现了运算简单的目的。
所述用户配对系统包括处理器和存储器，上述采集单元和判断单元等均作为程序单元存储在存储器中，由处理器执行存储在存储器中的上述程序单元来实现相应的功能。
处理器中包含内核，由内核去存储器中调取相应的程序单元。内核可以设 置一个或以上，通过调整内核参数来XXXX(本发明的目的)。
存储器可能包括计算机可读介质中的非永久性存储器，随机存取存储器(RAM)和/或非易失性内存等形式，如只读存储器(ROM)或闪存(flash RAM)，存储器包括至少一个存储芯片。
本发明实施例提供了一种存储介质，其上存储有程序，该程序被处理器执行时实现所述用户配对方法。
本发明实施例提供了一种处理器，所述处理器用于运行程序，其中，所述程序运行时执行所述用户配对方法。
本发明实施例提供了一种设备，设备包括处理器、存储器及存储在存储器上并可在处理器上运行的程序，处理器执行程序时实现以下步骤：
采集待配对的用户设备之间的信息参数；
判断所述信息参数是否满足预设配对条件，如果是，则将所述待配对的用户设备确定为配对设备；
其中，所述预设配对条件包括：所述待配对的用户设备之间的距离参数大于第一门限阈值，所述待配对的用户设备之间的窄带传递时间大于第二门限阈值和所述待配对的用户设备之间的宽带传递时间大于第三门限阈值。
进一步地，该方法还包括：
采集待配对的用户设备的定位信息；
依据所述定位信息计算获得待配对的用户设备之间的距离参数。
进一步地，该方法还包括：
控制所述待配对的用户设备通过窄带进行信息发送，并估算所述待配对的用户设备之间的信号传递时间。
进一步地，该方法还包括：
将所述待配对的用户设备分别与基站进行连接，其中，所述待配对的用户设备包括第一用户设备和第二用户设备；
基于所述基站的定时，控制所述第一用户设备向所述第二用户设备发送信号；
将所述第二设备获得所述信号的到达时延确定为宽带传递时间。
进一步地，该方法还包括：
当所述信息参数不满足所述预设条件中的任意一项时，则证明所述待配对的用户设备不能进行配对。
进一步地，当有多个待配对的用户设备，且所述多个待配对的用户设备均满足于所述预设条件时，该方法还包括：
将距离参数较大、窄带传递时间较大和宽带传递时间较大的用户设备进行优先配对。
本文中的设备可以是服务器、PC、PAD、手机等。
本申请还提供了一种计算机程序产品，当在数据处理设备上执行时，适于执行初始化有如下方法步骤的程序：
采集待配对的用户设备之间的信息参数；
判断所述信息参数是否满足预设配对条件，如果是，则将所述待配对的用户设备确定为配对设备；
其中，所述预设配对条件包括：所述待配对的用户设备之间的距离参数大于第一门限阈值，所述待配对的用户设备之间的窄带传递时间大于第二门限阈值和所述待配对的用户设备之间的宽带传递时间大于第三门限阈值。
进一步地，该方法还包括：
采集待配对的用户设备的定位信息；
依据所述定位信息计算获得待配对的用户设备之间的距离参数。
进一步地，该方法还包括：
控制所述待配对的用户设备通过窄带进行信息发送，并估算所述待配对的用户设备之间的信号传递时间。
进一步地，该方法还包括：
将所述待配对的用户设备分别与基站进行连接，其中，所述待配对的用户设备包括第一用户设备和第二用户设备；
基于所述基站的定时，控制所述第一用户设备向所述第二用户设备发送信 号；
将所述第二设备获得所述信号的到达时延确定为宽带传递时间。
进一步地，该方法还包括：
当所述信息参数不满足所述预设条件中的任意一项时，则证明所述待配对的用户设备不能进行配对。
进一步地，当有多个待配对的用户设备，且所述多个待配对的用户设备均满足于所述预设条件时，该方法还包括：
将距离参数较大、窄带传递时间较大和宽带传递时间较大的用户设备进行优先配对。
本领域内的技术人员应明白，本申请的实施例可提供为方法、系统、或计算机程序产品。因此，本申请可采用完全硬件实施例、完全软件实施例、或结合软件和硬件方面的实施例的形式。而且，本申请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、CD-ROM、光学存储器等)上实施的计算机程序产品的形式。
本申请是参照根据本申请实施例的方法、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。
在一个典型的配置中，计算设备包括一个或多个处理器(CPU)、输入/输出接口、网络接口和内存。
存储器可能包括计算机可读介质中的非永久性存储器，随机存取存储器(RAM)和/或非易失性内存等形式，如只读存储器(ROM)或闪存(flash RAM)。存储器是计算机可读介质的示例。
计算机可读介质包括永久性和非永久性、可移动和非可移动媒体可以由任何方法或技术来实现信息存储。信息可以是计算机可读指令、数据结构、程序的模块或其他数据。计算机的存储介质的例子包括，但不限于相变内存(PRAM)、静态随机存取存储器(SRAM)、动态随机存取存储器(DRAM)、其他类型的随机存取存储器(RAM)、只读存储器(ROM)、电可擦除可编程只读存储器(EEPROM)、快闪记忆体或其他内存技术、只读光盘只读存储器(CD-ROM)、数字多功能光盘(DVD)或其他光学存储、磁盒式磁带，磁带磁磁盘存储或其他磁性存储设备或任何其他非传输介质，可用于存储可以被计算设备访问的信息。按照本文中的界定，计算机可读介质不包括暂存电脑可读媒体(transitory media)，如调制的数据信号和载波。
还需要说明的是，术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含，从而使得包括一系列要素的过程、方法、商品或者设备不仅包括那些要素，而且还包括没有明确列出的其他要素，或者是还包括为这种过程、方法、商品或者设备所固有的要素。在没有更多限制的情况下，由语句“包括一个……”限定的要素，并不排除在包括要素的过程、方法、商品或者设备中还存在另外的相同要素。
本领域技术人员应明白，本申请的实施例可提供为方法、系统或计算机程序产品。因此，本申请可采用完全硬件实施例、完全软件实施例或结合软件和硬件方面的实施例的形式。而且，本申请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、CD-ROM、 光学存储器等)上实施的计算机程序产品的形式。
以上仅为本申请的实施例而已，并不用于限制本申请。对于本领域技术人员来说，本申请可以有各种更改和变化。凡在本申请的精神和原理之内所作的任何修改、等同替换、改进等，均应包含在本申请的权利要求范围之内。

Claims (11)

  1. 一种用户配对方法，其特征在于，应用于MU-MIMO系统，该方法包括：
    采集待配对的用户设备之间的信息参数；
    判断所述信息参数是否满足预设配对条件，如果是，则将所述待配对的用户设备确定为配对设备；
    其中，所述预设配对条件包括：所述待配对的用户设备之间的距离参数大于第一门限阈值，所述待配对的用户设备之间的窄带传递时间大于第二门限阈值和所述待配对的用户设备之间的宽带传递时间大于第三门限阈值。
  2. 根据权利要求1所述的方法，其特征在于，该方法还包括：
    采集待配对的用户设备的定位信息；
    依据所述定位信息计算获得待配对的用户设备之间的距离参数。
  3. 根据权利要求1所述的方法，其特征在于，该方法还包括：
    控制所述待配对的用户设备通过窄带进行信息发送，并估算所述待配对的用户设备之间的信号传递时间。
  4. 根据权利要求1所述的方法，其特征在于，该方法还包括：
    将所述待配对的用户设备分别与基站进行连接，其中，所述待配对的用户设备包括第一用户设备和第二用户设备；
    基于所述基站的定时，控制所述第一用户设备向所述第二用户设备发送信号；
    将所述第二设备获得所述信号的到达时延确定为宽带传递时间。
  5. 根据权利要求1所述的方法，其特征在于，该方法还包括：
    当所述信息参数不满足所述预设条件中的任意一项时，则证明所述待配对的用户设备不能进行配对。
  6. 根据权利要求1所述的方法，其特征在于，当有多个待配对的用户设备，且所述多个待配对的用户设备均满足于所述预设条件时，该方法还包括：
    将距离参数较大、窄带传递时间较大和宽带传递时间较大的用户设备进行 优先配对。
  7. 一种用户配对系统，其特征在于，应用于MU-MIMO系统，该系统包括：
    采集单元，用于采集待配对的用户设备之间的信息参数；
    判断单元，用于判断所述信息参数是否满足预设配对条件，如果是，则将所述待配对的用户设备确定为配对设备；
    其中，所述预设配对条件包括：所述待配对的用户设备之间的距离参数大于第一门限阈值，所述待配对的用户设备之间的窄带传递时间大于第二门限阈值和所述待配对的用户设备之间的宽带传递时间大于第三门限阈值。
  8. 根据权利要求7所述的系统，其特征在于，该系统还包括：
    第一信息获取单元，用于采集待配对的用户设备的定位信息；依据所述定位信息计算获得待配对的用户设备之间的距离参数；
    第二信息获取单元，用于控制所述待配对的用户设备通过窄带进行信息发送，并估算所述待配对的用户设备之间的信号传递时间；
    第三信息获取单元，用于将所述待配对的用户设备分别与基站进行连接，其中，所述待配对的用户设备包括第一用户设备和第二用户设备；基于所述基站的定时，控制所述第一用户设备向所述第二用户设备发送信号；将所述第二设备获得所述信号的到达时延确定为宽带传递时间。
  9. 根据权利要求7所述的系统，其特征在于，该系统还包括：
    证明单元，用于当所述信息参数不满足所述预设条件中的任意一项时，则证明所述待配对的用户设备不能进行配对；
    配对确定单元，用于当有多个待配对的用户设备，且所述多个待配对的用户设备均满足于所述预设条件时，将距离参数较大、窄带传递时间较大和宽带传递时间较大的用户设备进行优先配对。
  10. 一种存储介质，其特征在于，所述存储介质包括存储的程序，所述程序执行权利要求1-6中任意一项所述的用户配对方法。
  11. 一种处理器，其特征在于，所述处理器用于运行程序，其中，所述程 序运行时执行权利要求1-6中任意一项所述的用户配对方法。
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