WO2021227592A1 - 频谱共享方法、电子设备以及存储介质 - Google Patents

频谱共享方法、电子设备以及存储介质 Download PDF

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WO2021227592A1
WO2021227592A1 PCT/CN2021/077090 CN2021077090W WO2021227592A1 WO 2021227592 A1 WO2021227592 A1 WO 2021227592A1 CN 2021077090 W CN2021077090 W CN 2021077090W WO 2021227592 A1 WO2021227592 A1 WO 2021227592A1
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network
user
space division
users
candidate space
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French (fr)
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田勇
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中兴通讯股份有限公司
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
    • H04W16/14—Spectrum sharing arrangements between different networks

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  • the embodiments of the present application relate to the field of communications, and in particular, to a spectrum sharing method, electronic device, and storage medium.
  • DSS Dynamic Spectrum Sharing
  • the frequency band shared by 4G and 5G has co-frequency interference problems.
  • the 5G NR New Radio
  • LTE LongTerm Evolution
  • NR New Radio
  • the downlink waveforms of LTE (LongTerm Evolution) and NR are the same, and many configurations use the same parameters to avoid Co-channel interference problem.
  • 5G NR has also optimized the efficient coexistence of LTE/NR on the shared frequency band during the standard evolution process, such as SSB mode (Synchronization Signal Block pattern, SSB pattern), initial core position (Initial COREST position) and reference signal Rate matching (LTE CRS rate matching) and other technologies.
  • the purpose of the embodiments of the present application is to provide a spectrum sharing method, electronic equipment, and storage medium.
  • the embodiments of the present application provide a spectrum sharing method, including: obtaining channel estimation values of users of a first network and users of a second network in a shared frequency band, and the shared frequency band is the first network.
  • a shared frequency band between a network and the second network according to the channel estimation value of the user of the first network and the channel estimation value of the user of the second network, the candidate space division users of the first network and all the users are determined Candidate space division users of the second network; space division multiplexing is performed on the data delivered to at least two candidate space division users in the shared frequency band, and the at least two candidate space division users include at least one of the first Candidate space division users of the network and a candidate space division user of the second network.
  • the embodiments of the present application also provide an electronic device, including: at least one processor; and a memory communicatively connected with the at least one processor; wherein the memory stores instructions that can be executed by the at least one processor, and the instructions are at least One processor executes, so that at least one processor can execute the above-mentioned spectrum sharing method.
  • the embodiment of the present application also provides a computer-readable storage medium that stores a computer program, and when the computer program is executed by a processor, the above-mentioned spectrum sharing method is implemented.
  • Fig. 2 is a schematic diagram of a frequency band shared by a first network and a second network according to the first embodiment of the present application;
  • Fig. 3 is a schematic diagram of space division multiplexing performed by the first network and the second network according to the first embodiment of the present application;
  • FIG. 4 is a schematic flowchart of a spectrum sharing method according to a second embodiment of the present application.
  • Fig. 5 is a schematic structural diagram of an electronic device according to a third embodiment of the present application.
  • the first implementation manner of the present application relates to a spectrum sharing resource, including: obtaining channel estimation values of users of a first network and users of a second network in a shared frequency band, where the shared frequency band is the first network and the The shared frequency band of the second network; according to the channel estimation value of the user of the first network and the channel estimation value of the user of the second network, the candidate space division users of the first network and the second network are determined Candidate space division users; performing space division multiplexing on the data delivered to at least two candidate space division users in the shared frequency band, the at least two candidate space division users including at least one candidate space division of the first network User and a candidate space division user of the second network.
  • This embodiment improves the utilization of spectrum resources when performing spectrum sharing.
  • the following specifically describes the implementation details of the spectrum sharing method of this embodiment. The following content is only provided for ease of understanding and is not necessary for the implementation of this solution.
  • Step 101 Obtain channel estimation values of users of the first network and users of the second network in a shared frequency band, respectively, where the shared frequency band is a shared frequency band of the first network and the second network.
  • the first network and the second network refer to two networks deployed in different frequency bands, and there is a shared frequency band between the first network and the second network.
  • the first network is NR with a bandwidth of 100MHz deployed at 2515MHz-2615MHz
  • the second network is LTE with a bandwidth of 60MHzd deployed at 2575MHz-2635MHz.
  • the bandwidth between NR and LTE is The 40MHz shared frequency band is 2575MHz-2615MHz.
  • the channel estimation value of each NR user and each LTE user in the shared frequency band 2575MHz-2615MHz is obtained.
  • the channel estimation value can be obtained in the following manner: receiving a sounding reference signal (Sounding Reference Signal, SRS) reported by a user of the first network and a sounding reference signal reported by a user of the second network;
  • the sounding reference signal reported by the user of the first network and the sounding reference signal reported by the user of the second network respectively determine the channel estimation of the user of the first network and the user of the second network in the shared frequency band value.
  • the channel estimation value is a parameter standard for evaluating the channel quality.
  • the channel estimation value is calculated according to the subcarrier index and the pilot sequence base sequence carried in the sounding reference signal. For example, the channel estimation value can be calculated according to the calculation method in the prior art , I won’t repeat it here.
  • Step 102 Determine the candidate space division user of the first network and the candidate space division user of the second network according to the channel estimation value of the user of the first network and the channel estimation value of the user of the second network .
  • each user of the first network and each user of the second network may be determined according to the channel estimation value of the user of the first network and the channel estimation value of the user of the second network.
  • Channel correlation between users of the network determining that a user of the first network whose channel correlation with each user of the second network is less than a preset threshold is a candidate space division user of the first network Determining that a user of the second network whose channel correlation with each user of the first network is less than a preset threshold is a candidate space division user of the second network.
  • the weight matrix of the at least two candidate space division users may be obtained; the weight matrix is used to precode the data to be delivered to the at least two candidate space division users; The encoded data is delivered to the at least two candidate space division users.
  • the channel estimation value matrix of the at least two candidate space division users may be decomposed by singular value (SVD); and the rights of the at least two candidate space division users can be obtained according to the decomposition result.
  • Value matrix singular value
  • candidate user comprises a space division channel estimation value H of NR NR user and a channel estimation value H NR an LTE user
  • the user first of these two channel estimation matrix A [H NR, H LTE ]
  • Perform singular value decomposition obtain U matrix, singular value matrix and V matrix after decomposition, obtain V matrix as the weight matrix, use the weight matrix to precode the data to be sent to the two users, and send the precoded The data.
  • precoding the data to be delivered to candidate space division users as shown in FIG. 3, using beamforming technology, space division multiplexing of downlink data for candidate space division users of two networks can be realized.
  • the channel estimation values of the users of the first network and the users of the second network in the shared frequency band are obtained respectively, and the shared frequency band is the shared frequency band of the first network and the second network; according to the first network
  • the channel estimation value of the user of the second network and the channel estimation value of the user of the second network are determined to determine the candidate space division user of the first network and the candidate space division user of the second network; send to at least two candidate space division users in the shared frequency band
  • the data of is space division multiplexed, and the at least two candidate space division users include at least one candidate space division user of the first network and one candidate space division user of the second network.
  • the problem of co-frequency interference between the first network and the second network in the shared frequency band is avoided, and the first network and the second network can be Sharing the time-frequency resources in the spectrum sharing area improves the utilization of spectrum resources while ensuring the quality of the channel.
  • the second embodiment of the present application relates to a spectrum sharing method.
  • the second embodiment is an improvement of the first embodiment.
  • the main improvement is that in this embodiment, before separately obtaining the channel estimation values of the users of the first network and the users of the second network in the shared frequency band, the method further includes the following steps: Perform interference avoidance configuration on the first network and the second network.
  • the spectrum sharing method in this embodiment is shown in FIG. 4 and includes:
  • Step 201 Perform interference avoidance configuration on the first network and the second network.
  • the interference avoidance configuration in this step may include: separately configuring the channel through which the first network receives the sounding reference signal and the channel through which the second network receives the sounding reference signal, so that the first network The time-frequency positions of the sounding reference signal received by one network and the sounding reference signal received by the second network are staggered. Since it is necessary to determine the candidate space division users based on the received sounding reference signals in the subsequent steps, this configuration can ensure the reliability of the received sounding reference signals, thereby avoiding the need to send data to the selected candidate space division users. An error occurred during space division multiplexing.
  • the interference avoidance configuration in this step may also include: aligning the uplink and downlink time slots of the same time slot structure of the first network and the second network; aligning the first network and all the time slots.
  • the uplink and downlink conversion points of time slots with different time slot structures of the second network are described. In this way, the time slot synchronization of the first network and the second network is realized, and the mutual interference between the first network and the second network is reduced.
  • this embodiment also provides an interference avoidance configuration method for the application scenario of "the first network is NR and the second network is LTE", including:
  • SIB1 NR System Information Block 1
  • PDSCH Physical Downlink Shared Channel
  • DMRS Demodulation Reference Signal
  • Zero Power Channel State Information (ZP-CSI) on the corresponding symbols of LTE, and perform rate matching through the Zero Power Channel State Information Reference Signal (CSI-RS). Avoid NR's CSI-RS collision with LTE data services;
  • interference avoidance configurations can be implemented for the specific deployment of NR and LTE in specific application scenarios.
  • interference avoidance configurations other than the above configurations can also be performed for NR and LTE. Let me repeat them one by one.
  • Step 202 Obtain channel estimation values of users of the first network and users of the second network in a shared frequency band, respectively, where the shared frequency band is a shared frequency band of the first network and the second network.
  • Step 203 Determine the candidate space division user of the first network and the candidate space division user of the second network according to the channel estimation value of the user of the first network and the channel estimation value of the user of the second network .
  • Step 204 Perform space division multiplexing on the data delivered to at least two candidate space division users in the shared frequency band, and the at least two candidate space division users include at least one candidate space division user of the first network and A candidate space division user of the second network.
  • Steps 202 to 204 are substantially the same as steps 101 to 103 in the first embodiment, respectively. To avoid repetition, they will not be repeated here.
  • this embodiment performs interference avoidance on the first network and the second network before separately acquiring the channel estimation values of the users of the first network and the users of the second network in the shared frequency band.
  • the interference avoidance configuration reduces the mutual interference between the key signals of the first network and the second network, so that the probability of errors in subsequent space division multiplexing of the downlink data of candidate space division users of the two networks is reduced.
  • the third embodiment of the present application relates to an electronic device. As shown in FIG. 5, it includes at least one processor 301; and a memory 302 communicatively connected with the at least one processor 301; The instructions executed by the processor 301 are executed by at least one processor 301, so that the at least one processor 301 can execute the spectrum sharing method in any of the foregoing method embodiments.
  • the memory 302 and the processor 301 are connected in a bus manner, and the bus may include any number of interconnected buses and bridges, and the bus connects one or more various circuits of the processor 301 and the memory 302 together.
  • the bus can also connect various other circuits such as peripheral devices, voltage regulators, and power management circuits, etc., which are all known in the art, and therefore, no further description will be given herein.
  • the bus interface provides an interface between the bus and the transceiver.
  • the transceiver may be one element or multiple elements, such as multiple receivers and transmitters, providing a unit for communicating with various other devices on the transmission medium.
  • the data processed by the processor 301 is transmitted on a wireless medium through an antenna.
  • the antenna also receives the data and transmits the data to the processor 301.
  • the processor 301 is responsible for managing the bus and general processing, and can also provide various functions, including timing, peripheral interfaces, voltage regulation, power management, and other control functions.
  • the memory 302 may be used to store data used by the processor 301 when performing operations.
  • the embodiment of the present application also provides a computer-readable storage medium that stores a computer program, and when the computer program is executed by a processor, the spectrum sharing method in any of the foregoing method embodiments is implemented.
  • the program is stored in a storage medium and includes several instructions to enable a device ( It may be a single-chip microcomputer, a chip, etc.) or a processor (processor) that executes all or part of the steps of the methods described in the embodiments of the present application.
  • the aforementioned storage media include: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), magnetic disks or optical disks and other media that can store program codes. .

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Abstract

本申请实施例涉及通信领域，公开了一种频谱共享方法，包括：分别获取第一网络的用户和第二网络的用户在共享频段的信道估计值，共享频段为第一网络和第二网络的共享频段；根据第一网络的用户的信道估计值和第二网络的用户的信道估计值，确定第一网络的候选空分用户和第二网络的候选空分用户；在共享频段对下发至至少两个候选空分用户的数据进行空分复用，至少两个候选空分用户至少包括一个第一网络的候选空分用户和一个第二网络的候选空分用户。本申请还公开了一种电子设备和存储介质。

Description

频谱共享方法、电子设备以及存储介质
相关申请的交叉引用
本申请基于申请号为202010396814.7、申请日为2020年5月12日的中国专利申请提出，并要求该中国专利申请的优先权，该中国专利申请的全部内容在此以引入方式并入本申请。
技术领域
本申请实施例涉及通信领域，特别涉及一种频谱共享方法、电子设备以及存储介质。
背景技术
频谱是信息技术的重要载体，随着技术的不断发展，无线设备大幅度增长，对频谱资源需求的增长也急剧上升，动态频谱共享(Dynamic Spectrum Sharing，DSS)是目前解决频谱供需矛盾的有效方式之一。DSS技术允许4G和5G同时存在于同一频段，同时根据需求调整分配给每一代(4G/5G)的带宽。DSS使得网络运营商可以在4G和5G之间动态地共享频谱，与现在必须拆分频谱并为不同的技术专门分配单独频谱块有着很大的区别，能够更经济高效地部署5G服务。
在DSS技术的实施过程中，4G和5G共享的频段存在同频干扰问题。5G NR(New Radio，新无线)的标准和系统设计过程中充分考虑了这一问题，比如使LTE(LongTermEvolution，长期演进)和NR的下行波形相同，并且许多配置都采用相同的参数，从而避免同频干扰问题。同时，5G NR在标准演化过程中也对LTE/NR在共享频段上的高效共存进行了优化设计，比如SSB模式 (Synchronization Signal Block pattern，SSB pattern)、初始核心位置(Initial COREST position)和参考信号速率匹配(LTE CRS rate matching)等技术。
然而，在一些情形下都是通过灵活的时分调度或者频分调度来规避NR与LTE共享频段的同频干扰，该做法通过牺牲频谱效率换取信道质量，大大降低了频谱资源利用率。
发明内容
本申请实施方式的目的在于提供一种频谱共享方法、电子设备以及存储介质。
为解决上述技术问题，本申请的实施方式提供了一种频谱共享方法，包括：分别获取第一网络的用户和第二网络的用户在共享频段的信道估计值，所述共享频段为所述第一网络和所述第二网络的共享频段；根据所述第一网络的用户的信道估计值和所述第二网络的用户的信道估计值，确定所述第一网络的候选空分用户和所述第二网络的候选空分用户；在所述共享频段对下发至至少两个候选空分用户的数据进行空分复用，所述至少两个候选空分用户至少包括一个所述第一网络的候选空分用户和一个第二网络的候选空分用户。
本申请的实施方式还提供了一种电子设备，包括：至少一个处理器；以及，与至少一个处理器通信连接的存储器；其中，存储器存储有可被至少一个处理器执行的指令，指令被至少一个处理器执行，以使至少一个处理器能够执行上述的频谱共享方法。
本申请的实施方式还提供了一种计算机可读存储介质，存储有计算机程序，所述计算机程序被处理器执行时实现上述频谱共享方法。
附图说明
一个或多个实施例通过与之对应的附图中的图片进行示例性说明，这些示例性说明并不构成对实施例的限定。
图1是根据本申请第一实施方式的频谱共享方法的流程示意图；
图2是根据本申请第一实施方式的第一网络和第二网络共享频段的示意图；
图3是根据本申请第一实施方式的第一网络和第二网络进行空分复用的示意图；
图4是根据本申请第二实施方式的频谱共享方法的流程示意图；
图5是根据本申请第三实施方式的电子设备的结构示意图。
具体实施方式
为使本申请实施例的目的、技术方案和优点更加清楚，下面将结合附图对本申请的各实施方式进行详细的阐述。然而，本领域的普通技术人员可以理解，在本申请各实施方式中，为了使读者更好地理解本申请而提出了许多技术细节。但是，即使没有这些技术细节和基于以下各实施方式的种种变化和修改，也可以实现本申请所要求保护的技术方案。
本申请的第一实施方式涉及一种频谱共享资源，包括：分别获取第一网络的用户和第二网络的用户在共享频段的信道估计值，所述共享频段为所述第一网络和所述第二网络的共享频段；根据所述第一网络的用户的信道估计值和所述第二网络的用户的信道估计值，确定所述第一网络的候选空分用户和所述第二网络的候选空分用户；在所述共享频段对下发至至少两个候选空分用户的数据进行空分复用，所述至少两个候选空分用户至少包括一个所述第一网络的候选空分用户和一个第二网络的候选空分用户。本实施方式使得进行频谱共享时频谱资源利用率提高。下面对本实施方式的频谱共享方法的实现细节进行具体的说明，以下内容仅为方便理解提供的实现细节，并非实施本方案的必须。
本实施方式中的频谱共享方法如图1所示：
步骤101：分别获取第一网络的用户和第二网络的用户在共享频段的信道估计值，所述共享频段为所述第一网络和所述第二网络的共享频段。
在一个示例实施例中，第一网络和第二网络指的是部署在不同频段的两个 网络，并且，第一网络和第二网络之间存在共享频段。举例来说，如图2所示，第一网络为部署在2515MHz-2615MHz的带宽为100MHz的NR，第二网络为部署在2575MHz-2635MHz的带宽为60MHzd的LTE，NR与LTE之间存在带宽为40MHz的共享频段2575MHz-2615MHz，此时，获取每个NR用户和每个LTE用户在共享频段2575MHz-2615MHz的信道估计值。
本实施方式中，可以通过以下方式获取信道估计值：接收所述第一网络的用户上报的探测参考信号(Sounding Reference Signal，SRS)和所述第二网络的用户上报的探测参考信号；根据所述第一网络的用户上报的探测参考信号和所述第二网络的用户上报的探测参考信号，分别确定所述第一网络的用户和所述第二网络的用户在所述共享频段的信道估计值。信道估计值是评估信道质量的参数标准，依据探测参考信号中携带的子载波索引和导频序列基序列计算得出信道估计值，例如可以根据现有技术中的计算方法对信道估计值进行计算，此处不再赘述。
步骤102：根据所述第一网络的用户的信道估计值和所述第二网络的用户的信道估计值，确定所述第一网络的候选空分用户和所述第二网络的候选空分用户。
在一个示例实施例中，可以根据所述第一网络的用户的信道估计值和所述第二网络的用户的信道估计值，确定每个所述第一网络的用户和每个所述第二网络的用户之间的信道相关性；确定和每个所述第二网络的用户之间的信道相关性小于预设门限的所述第一网络的用户为所述第一网络的候选空分用户；确定和每个所述第一网络的用户之间的信道相关性小于预设门限的所述第二网络的用户为所述第二网络的候选空分用户。
在一个示例实施例中，根据第一网络的用户在共享频段的信道估计值，以及第二网络的用户在共享频段的信道估计值，计算每个第一网络的用户和每个第二网络的用户的信道相关性R(H i,H j)(R表示信道相关性，H i表示第i个第一网络的用户的信道估计值(i＝1、2、…)，H j表示第j个第二网络的用户的信道估计值(j＝1、2、…))。确定和每个第二网络的用户之间的信道相关性小于预设门限的第一网络的用户为第一网络的候选空分用户；确定和每个第一网络 的用户之间的信道相关性小于预设门限的第二网络的用户为所述第二网络的候选空分用户。由于信道相关性越高表示对下发至两个用户的数据进行空分复用时出现同频干扰的可能性越大，通过设置信道相关性门限确定候选空分用户，可以确保在对下发至候选空分用户的数据进行空分复用时不会出现同频干扰问题。其中，信号相关性的具体计算方法属于现有技术，此处不再赘述。
步骤103：在所述共享频段对下发至至少两个候选空分用户的数据进行空分复用，所述至少两个候选空分用户至少包括一个所述第一网络的候选空分用户和一个第二网络的候选空分用户。
在一个示例实施例中，可以获取所述至少两个候选空分用户的权值矩阵；利用所述权值矩阵对待下发至所述至少两个候选空分用户的数据进行预编码；将预编码后的数据下发至所述至少两个候选空分用户。
在本实施方式中，可以通过对所述至少两个候选空分用户的信道估计值矩阵进行奇异值(Singular Value Decomposition，SVD)分解；根据分解结果获取所述至少两个候选空分用户的权值矩阵。
举例来说，候选空分用户包括一个信道估计值为H NR的NR用户和一个信道估计值为H NR的LTE用户，先对这两个用户的信道估计矩阵A＝[H NR，H LTE]进行奇异值分解，分解后得到U矩阵，奇异值矩阵和V矩阵，获取V矩阵作为权值矩阵，利用该权值矩阵对待下发至这两个用户的数据进行预编码，并发送预编码后的数据。通过对待下发至候选空分用户的数据进行预编码，如图3所示，利用波束赋形技术，可以实现对于两个网络的候选空分用户的下行数据的空分复用。
与一些情形相比，本实施方式中，分别获取第一网络的用户和第二网络的用户在共享频段的信道估计值，共享频段为第一网络和第二网络的共享频段；根据第一网络的用户的信道估计值和第二网络的用户的信道估计值，确定第一网络的候选空分用户和第二网络的候选空分用户；在共享频段对下发至至少两个候选空分用户的数据进行空分复用，至少两个候选空分用户至少包括一个第一网络的候选空分用户和一个第二网络的候选空分用户。通过在频谱共享区域 空分复用调度第一网络和第二网络的下行数据，既避免了第一网络和第二网络在共享频段的同频干扰问题，又使得第一网络和第二网络可以共享频谱共享区域的时频资源，在保证信道质量的情况提高了频谱资源利用率。
本申请的第二实施方式涉及一种频谱共享方法。第二实施方式是第一实施方式的改进，主要改进之处在于，本实施方式中，在分别获取第一网络的用户和第二网络的用户在共享频段的信道估计值之前，还包括步骤：对所述第一网络和所述第二网络进行干扰规避配置。
本实施方式中的频谱共享方法如图4所示，包括：
步骤201：对所述第一网络和所述第二网络进行干扰规避配置。
在一个示例实施例中，本步骤中的干扰规避配置可以包括：对所述第一网络接收探测参考信号的信道和所述第二网络接收探测参考信号的信道分别进行配置，以使所述第一网络接收的探测参考信号和所述第二网络接收的探测参考信号的时频位置错开。由于在后续步骤中需要基于接收到的探测参考信号确定候选空分用户，该项配置可以确保接收到的探测参考信号的可靠性，进而避免在对下发至选取出的候选空分用户的数据进行空分复用时发生错误。
在一示例性实施方式中，本步骤中的干扰规避配置也可以包括：对齐所述第一网络和所述第二网络的相同时隙结构的上下行时隙；对齐所述第一网络和所述第二网络的不同时隙结构的时隙的上下行转换点。如此设置，实现第一网络和第二网络的时隙同步，减少了第一网络和第二网络之间的相互干扰。
值得一提的是，本实施方式还提供了在对“第一网络为NR，第二网络为LTE”这一应用场景的干扰规避配置方法，包括：
(1)将NR的同步信号和PBCH块(Synchronization Signal and PBCH block，SSB)配置在NR的非共享频段上，该配置可以避免NR的SSB占用的时频资源与LTE的小区参考信号(Cell Reference Signal，CRS)、主同步信号(Primary Synchronization Signal，PSS)、辅同步信号(Secondary Synchronization Signal，SSS)和物理广播信道(Physical Broadcast Channel，PBCH)发生冲突；
(2)对NR的物理下行控制信道(Physical Downlink Control Channel，PDCCH)进行配置，避免NR的PDCCH和LTE的PDCCH发生冲突，以及，避免NR的PDCCH和LTE的CRS发生冲突；
(3)对NR的系统信息1(System Information Block 1，SIB1)的调度进行配置，避免与LTE的CRS发生冲突；
(4)对NR的物理下行共享信道(Physical Downlink Shared Channel，PDSCH)进行配置，指示NR的PDSCH与LTE的CRS位置错开，避免NR的PDSCH、以及PDSCH的解调参考信号(Demodulation Reference Signal，DMRS)与LTE的CRS时频资源位置发生冲突；
(5)对NR的PDSCH进行配置，避免与LTE的PDCCH发生冲突；
(6)在LTE对应符号上配置零功率信道状态信息(Zero Power Channel State Information，ZP-CSI)，通过零功率信道状态信息参考信号(Channel State Information Reference Signal，CSI-RS)进行速率匹配，可以避免NR的CSI-RS碰撞LTE的数据业务；
(7)在NR对应符号上配置ZP-CSI，通过零功率CSI-RS进行速率匹配，可以避免LTE CSI-RS碰撞NR的数据业务；
(8)配置NR采用PDSCH对资源块-符号级(RB-Symbol-Level)的保留资源进行速率匹配，指示NR的基站和用户终端不会采用这部分保留资源去承载数据，避免NR的PDSCH与LTE的PDCCH发生冲突。
需要说明的是，以上各项配置可以针对具体应用场景中NR和LTE的具体部署情况进行实施，在实际应用场景中，也可以对NR和LTE进行上述配置之外的干扰规避配置，在此不再一一赘述。
步骤202：分别获取第一网络的用户和第二网络的用户在共享频段的信道估计值，所述共享频段为所述第一网络和所述第二网络的共享频段。
步骤203：根据所述第一网络的用户的信道估计值和所述第二网络的用户的信道估计值，确定所述第一网络的候选空分用户和所述第二网络的候选空分 用户。
步骤204：在所述共享频段对下发至至少两个候选空分用户的数据进行空分复用，所述至少两个候选空分用户至少包括一个所述第一网络的候选空分用户和一个第二网络的候选空分用户。
步骤202至步骤204分别与第一实施方式中步骤101至步骤103大致相同，为避免重复，在此不再一一赘述。
与第一实施方式相比，本实施方式，在分别获取第一网络的用户和第二网络的用户在共享频段的信道估计值之前，对所述第一网络和所述第二网络进行干扰规避配置。通过干扰规避配置减少了第一网络和第二网络关键信号之间的相互干扰，使得后续在对两个网络的候选空分用户的下行数据进行空分复用时发生错误的概率降低。
值得一提的是，上面各种方法的步骤划分，只是为了描述清楚，实现时可以合并为一个步骤或者对某些步骤进行拆分，分解为多个步骤，只要包括相同的逻辑关系，都在本专利的保护范围内；对算法中或者流程中添加无关紧要的修改或者引入无关紧要的设计，但不改变其算法和流程的核心设计都在该专利的保护范围内。
本申请第三实施方式涉及一种电子设备，如图5所示，包括至少一个处理器301；以及，与至少一个处理器301通信连接的存储器302；其中，存储器302存储有可被至少一个处理器301执行的指令，指令被至少一个处理器301执行，以使至少一个处理器301能够执行上述任一方法实施例中的频谱共享方法。
其中，存储器302和处理器301采用总线方式连接，总线可以包括任意数量的互联的总线和桥，总线将一个或多个处理器301和存储器302的各种电路连接在一起。总线还可以将诸如外围设备、稳压器和功率管理电路等之类的各种其他电路连接在一起，这些都是本领域所公知的，因此，本文不再对其进行进一步描述。总线接口在总线和收发机之间提供接口。收发机可以是一个元件， 也可以是多个元件，比如多个接收器和发送器，提供用于在传输介质上与各种其他装置通信的单元。经处理器301处理的数据通过天线在无线介质上进行传输，在一示例性实施方式中，天线还接收数据并将数据传送给处理器301。
处理器301负责管理总线和通常的处理，还可以提供各种功能，包括定时、外围接口、电压调节、电源管理以及其他控制功能。而存储器302可以被用于存储处理器301在执行操作时所使用的数据。
本申请的实施方式还提供了一种计算机可读存储介质，存储有计算机程序，所述计算机程序被处理器执行时实现上述任一方法实施例中的频谱共享方法。
即，本领域技术人员可以理解，实现上述实施例方法中的全部或部分步骤是可以通过程序来指令相关的硬件来完成，该程序存储在一个存储介质中，包括若干指令用以使得一个设备(可以是单片机，芯片等)或处理器(processor)执行本申请各个实施例所述方法的全部或部分步骤。而前述的存储介质包括：U盘、移动硬盘、只读存储器(ROM，Read-Only Memory)、随机存取存储器(RAM，Random Access Memory)、磁碟或者光盘等各种可以存储程序代码的介质。
本领域的普通技术人员可以理解，上述各实施方式是实现本申请的具体实施例，而在实际应用中，可以在形式上和细节上对其作各种改变，而不偏离本申请的精神和范围。

Claims (10)

  1. 一种频谱共享方法，包括：
    分别获取第一网络的用户和第二网络的用户在共享频段的信道估计值，所述共享频段为所述第一网络和所述第二网络的共享频段；
    根据所述第一网络的用户的信道估计值和所述第二网络的用户的信道估计值，确定所述第一网络的候选空分用户和所述第二网络的候选空分用户；
    在所述共享频段对下发至至少两个候选空分用户的数据进行空分复用，所述至少两个候选空分用户至少包括一个所述第一网络的候选空分用户和一个第二网络的候选空分用户。
  2. 根据权利要求1所述的频谱共享方法，其中，所述分别获取第一网络的用户和第二网络的用户在共享频段的信道估计值，包括：
    接收所述第一网络的用户上报的探测参考信号和所述第二网络的用户上报的探测参考信号；
    根据所述第一网络的用户上报的探测参考信号和所述第二网络的用户上报的探测参考信号，分别确定所述第一网络的用户和所述第二网络的用户在所述共享频段的信道估计值。
  3. 根据权利要求1所述的频谱共享方法，其中，所述根据所述第一网络的用户的信道估计值和所述第二网络的用户的信道估计值，确定所述第一网络的候选空分用户和所述第二网络的候选空分用户，包括：
    根据所述第一网络的用户的信道估计值和所述第二网络的用户的信道估计值，确定每个所述第一网络的用户和每个所述第二网络的用户之间的信道相关性；
    确定和每个所述第二网络的用户之间的信道相关性小于预设门限的所述第一网络的用户为所述第一网络的候选空分用户；
    确定和每个所述第一网络的用户之间的信道相关性小于预设门限的所述 第二网络的用户为所述第二网络的候选空分用户。
  4. 根据权利要求1所述的频谱共享方法，其中，所述在所述共享频段对下发至至少两个候选空分用户的数据进行空分复用，包括：
    对所述至少两个候选空分用户的信道估计值矩阵进行奇异值分解；
    根据分解结果获取所述至少两个候选空分用户的权值矩阵；
    利用所述权值矩阵对待下发至所述至少两个候选空分用户的数据进行预编码；
    将预编码后的数据下发至所述至少两个候选空分用户。
  5. 根据权利要求1所述的频谱共享方法，其中，所述分别获取第一网络的用户和第二网络的用户在共享频段的信道估计值之前，还包括：
    对所述第一网络和所述第二网络进行干扰规避配置。
  6. 根据权利要求5所述的频谱共享方法，其中，所述对所述第一网络和所述第二网络进行干扰规避配置，包括：
    对所述第一网络接收探测参考信号的信道和所述第二网络接收探测参考信号的信道分别进行配置，以使所述第一网络接收的探测参考信号和所述第二网络接收的探测参考信号的时频位置错开。
  7. 根据权利要求5所述的频谱共享方法，其中，所述对所述第一网络和所述第二网络进行干扰规避配置，包括：
    对齐所述第一网络和所述第二网络的相同时隙结构的上下行时隙；
    对齐所述第一网络和所述第二网络的不同时隙结构的时隙的上下行转换点。
  8. 根据权利要求5所述的频谱共享方法，其中，所述对所述第一网络和所述第二网络进行干扰规避配置，包括：
    对所述第一网络的预定信号进行配置，以避免所述第一网络的预定信号与所述第二网络的预定信号发生冲突；
    其中，所述第一网络的预定信号包括广播信号、系统消息、信道状态参考信号、下行业务信道解调参考信号和控制信号中的至少一者；
    所述第二网络的预定信号包括广播信号、系统消息、零功率参考信号、控制信号和小区参考信号中的至少一者。
  9. 一种电子设备，包括：
    至少一个处理器；以及，
    与所述至少一个处理器通信连接的存储器；其中，
    所述存储器存储有可被所述至少一个处理器执行的指令，所述指令被所述至少一个处理器执行，以使所述至少一个处理器能够执行如权利要求1-8中任一项所述的频谱共享方法。
  10. 一种计算机可读存储介质，存储有计算机程序，其中，所述计算机程序被处理器执行时实现权利要求1-8中任一项所述的频谱共享方法。
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CN101964987A (zh) * 2009-07-24 2011-02-02 大唐移动通信设备有限公司 一种多用户空分判断方法及设备
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