WO2022166315A1 - 频谱共享装置、频谱共享方法及计算机可读存储介质 - Google Patents

频谱共享装置、频谱共享方法及计算机可读存储介质 Download PDF

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WO2022166315A1
WO2022166315A1 PCT/CN2021/132130 CN2021132130W WO2022166315A1 WO 2022166315 A1 WO2022166315 A1 WO 2022166315A1 CN 2021132130 W CN2021132130 W CN 2021132130W WO 2022166315 A1 WO2022166315 A1 WO 2022166315A1
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spectrum sharing
prb
lte
spectrum
frequency domain
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French (fr)
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张志荣
谢伟良
鲁娜
陈建刚
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China Telecom Corp Ltd
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China Telecom Corp Ltd
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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 present disclosure relates to a spectrum sharing apparatus, a spectrum sharing method, and a storage medium. More particularly, the present disclosure relates to techniques for dynamically sharing spectrum resources in 4G/5G mobile communication networks.
  • DSS Dynamic Spectrum Sharing, dynamic spectrum sharing
  • 4G/5G dynamic spectrum sharing can be realized, so as to meet the respective traffic requirements of 4G/5G users on limited spectrum resources, and use the instantaneous dynamic sharing of spectrum to provide the best performance for 4G and 5G devices.
  • LTE Long Term Evolution, long term evolution
  • NR New Radio, new air interface, which can be used to refer to 5G networks
  • the LTE frequency domain of the operator is configured in the range of 0-20M, and the LTE PDCCH (Physical Downlink Control Channel, physical downlink control channel) is allocated with 2 OFDM (Orthogonal Frequency Division Multiplexing, Orthogonal Frequency Division Multiplexing) symbols numbered "0, 1", followed by 2 OFDM symbols of LTE PDCCH, to assign numbers to NR PDCCH 1 OFDM symbol of "2".
  • the frequency domain range of NR PDCCH is less than or equal to 20M. Therefore, since the number of symbols of the NR PDCCH is only 1 and the bandwidth is limited, it is difficult to schedule a PDSCH (Physical Downlink Shared Channel) with a large bandwidth of 50M. shared channel).
  • PDSCH Physical Downlink Shared Channel
  • NR PDSCH in the NR exclusive frequency domain of 20M-50M, the symbol position of NR PDSCH is ahead of the symbol position of NR PDCCH and NR DMRS (Demodulation Reference Signal, demodulation reference signal). Therefore, it is inevitable to It will affect the demodulation performance of the NR terminal.
  • signals such as NR SSB (Synchronization Signal and PBCH block, synchronization signal block) and LTE CRS RE all exist in the frequency domain of 0-20M, so it is easy to occur.
  • solutions such as LTE puncturing, NR puncturing, or M subframes need to be adopted, which increases the technical complexity, while the performance and capacity of LTE and NR are seriously damaged.
  • An object of the present disclosure is to provide a spectrum sharing device, a spectrum sharing method and a storage medium that can reduce LTE and NR performance and capacity loss in 4G/5G spectrum resource sharing.
  • a spectrum sharing apparatus for sharing spectrum resources in a scenario where LTE (long term evolution) and NR (new air interface) are configured in a 1:1 configuration
  • the spectrum sharing apparatus includes a processing circuit
  • the processing circuit is configured to: perform initialization and parameter configuration, configure the NR control channel in the NR exclusive frequency domain; detect the occupied bandwidth of the NR physical resource block, that is, the NR PBR; On/off control is performed on a function switch for enabling/disabling the DSS, that is, the dynamic spectrum sharing function; and spectrum resource allocation is performed based on the on/off state of the function switch.
  • a spectrum sharing method for sharing spectrum resources in a scenario where LTE (long term evolution) and NR (new air interface) are configured at 1:1, wherein the spectrum sharing method includes the following steps: Perform initialization and parameter configuration, configure the NR control channel in the NR exclusive frequency domain; detect the occupied bandwidth of the NR physical resource block (NR PBR); The function switch of the dynamic spectrum sharing function performs on/off control; and based on the on/off state of the function switch, the allocation of spectrum resources is performed.
  • LTE long term evolution
  • NR new air interface
  • a computer-readable storage medium comprising executable instructions, which when executed by a computer, cause the computer to perform the above-described spectrum sharing method.
  • the present disclosure in 4G/5G spectrum resource sharing, it is possible to reduce LTE and NR performance and capacity loss when LTE and NR are configured in a 1:1 ratio.
  • the patented method is not only suitable for 50M DSS, but also for DSS larger than 50M, such as 55M, 60M, 80M, 100M and other DSS, and also suitable for less than 50M DSS, such as 30M, 35M, 40M, 45M and other DSS.
  • FIG. 1 is a diagram schematically illustrating spectrum resource allocation in a spectrum sharing apparatus 2000 according to an embodiment of the present disclosure
  • FIG. 2 is an exemplary configuration block diagram schematically showing a spectrum sharing apparatus 2000 of an embodiment of the present disclosure
  • FIG. 3 is a flowchart simply showing the outline of the spectrum sharing method executed in the spectrum sharing apparatus 2000 according to an embodiment of the present disclosure.
  • FIG. 4 is an exemplary flowchart illustrating in more detail the spectrum sharing processing procedure performed in the spectrum sharing apparatus 2000 of the embodiment of the present disclosure
  • FIG. 5 is a diagram schematically illustrating spectrum resource allocation by a spectrum sharing apparatus in the related art
  • FIG. 6 is a block diagram schematically illustrating an exemplary configuration of a computing device 300 implementing an embodiment of the present disclosure.
  • FIG. 1 is a diagram schematically illustrating spectrum resource allocation in a spectrum sharing apparatus 2000 according to an embodiment of the present disclosure.
  • Migrate key signals such as NR SSB/RMSI/OSI to the NR-exclusive 20M-50M frequency domain of 30M size, thereby effectively solving the problem of conflict with RE resources occupied by LTE CRS, and do ( LTE/NR) dynamic spectrum sharing.
  • the LTE dynamic spectrum sharing range is 0-20M
  • the NR static spectrum sharing (SSS, Static Spectrum Sharing) range is 30-50M, as shown in the dark dotted horizontal line and dark dotted arrow in the figure, not exceeding the black solid horizontal line ;
  • the NR dynamic spectrum sharing (DSS) range is 0-20M, as shown in the light-colored dashed horizontal line and light-colored dashed arrow in the figure.
  • the NR service calls down the NR spectrum resources by calling down from 50M to 20M (with a bandwidth of 30M).
  • the NR service does not exceed 30M, there is no need to use DSS, so the NR/LTE dynamic spectrum sharing DSS function is turned off, and NR/LTE does not have signal overlap or collision of control channels and service channels, and actually uses static spectrum. Shared SSS method.
  • the dynamic spectrum sharing DSS function is activated, and the NR PDSCH is extended from the upper 30M to the lower LTE 20M, and the NR PDSCH extended to the LTE 20M area passes the RE (Resource Element, resource element) level rate matching To avoid conflict with RE resources occupied by LTE CRS (Cell Reference Signal, cell reference signal).
  • RE Resource Element, resource element
  • CFI Control Format Indicator
  • the shared bandwidth size can also be 30M, 35M, 40M, 45M, 55M, 60M, 80M, 100M and so on.
  • FIG. 2 is an exemplary configuration block diagram schematically showing a spectrum sharing apparatus 2000 of an embodiment of the present disclosure.
  • the spectrum sharing apparatus 2000 may include a processing circuit 2010 .
  • the processing circuit 2010 of the spectrum sharing apparatus 2000 provides various functions of the spectrum sharing apparatus 2000 .
  • the processing circuit 2010 of the spectrum sharing apparatus 2000 may be configured to perform the spectrum sharing method in the spectrum sharing apparatus 2000 .
  • Processing circuitry 2010 may refer to various implementations of digital circuitry, analog circuitry, or mixed-signal (combination of analog and digital) circuitry that perform functions in a computing system.
  • Processing circuitry may include, for example, circuits such as integrated circuits (ICs), application specific integrated circuits (ASICs), portions or circuits of separate processor cores, entire processor cores, separate processors, such as field programmable gate arrays (FPGAs) programmable hardware devices, and/or systems including multiple processors.
  • ICs integrated circuits
  • ASICs application specific integrated circuits
  • FPGAs field programmable gate arrays
  • the processing circuit 2010 may include an initialization and parameter configuration unit 2020, an NR PRB (Physical Resource Block) detection unit 2030, a DSS function switch control unit 2040, and a DSS/SSS function execution unit 2050.
  • the initialization and parameter configuration unit 2020 is configured to execute step S1001 of FIG. 3 and steps S2001 and S2002 of the flowchart of FIG. 4 described later
  • the NR PRB detection unit 2030 is configured to execute steps S1002 and S2002 of FIG. 3 described later.
  • the DSS function switch control unit 2040 is configured to execute step S1003 in the flowchart of FIG. 3 described later and S2004 to S2005 and S2008 in FIG. 4
  • the DSS/SSS function execution unit 2050 is configured to Step S1004 in the flowchart of FIG. 3 and steps S2006 to S2007 and S2009 to S2010 in the flowchart of FIG. 4 are executed.
  • the spectrum sharing apparatus 2000 may further include a memory (not shown).
  • the memory of the spectrum sharing apparatus 2000 may store information generated by the processing circuit 2010 as well as programs and data for the operation of the spectrum sharing apparatus 2000 .
  • the memory may be volatile memory and/or non-volatile memory.
  • memory may include, but is not limited to, random access memory (RAM), dynamic random access memory (DRAM), static random access memory (SRAM), read only memory (ROM), and flash memory.
  • the spectrum sharing apparatus 2000 may be implemented at the chip level, or may also be implemented at the device level by including other external components.
  • each of the above-mentioned units may be implemented as independent physical entities, or may also be implemented by a single entity (eg, a processor (CPU or DSP, etc.), an integrated circuit, etc.).
  • FIG. 3 is an exemplary flowchart simply illustrating a spectrum sharing method performed in the spectrum sharing apparatus 2000 of some embodiments of the present disclosure.
  • the spectrum resource sharing of the present disclosure will be briefly described with reference to FIG. 3.
  • step S1001 in the initialization process, NR SSB/RMSI (Remaining minimum system information, remaining minimum system information)/OSI (Other System Information, other System messages) and other control channels are configured in 20M-50M, that is, the exclusive frequency domain of NR.
  • the LTE PDCCH is configured in the LTE frequency domain of 0-20M, and 2 to 3 OFDM symbols are allocated.
  • the occupancy of NR PRB resources is detected.
  • the NR PRB maximum occupied bandwidth is periodically detected every predetermined time, such as 1S, 10S, etc.
  • the maximum occupied bandwidth of the NR PRB may also be detected at a set time.
  • the maximum occupied bandwidth of the NR PRB may not be detected, but the average occupied bandwidth of the NR PRB may be detected.
  • step S1003 according to the detected occupancy of the NR PRB resources, the function switch for enabling/disabling the DSS function is controlled to be on/off.
  • the specific on/off control process will be described in detail later.
  • step S1004 based on the state (on/off) of the function switch, spectrum resource allocation (DSS/SSS) is performed accordingly.
  • DSS/SSS spectrum resource allocation
  • FIG. 4 is an exemplary flowchart illustrating in more detail a spectrum sharing method performed in the spectrum sharing apparatus 2000 of some embodiments of the present disclosure.
  • the initialization and parameter configuration unit 2020 performs initialization and parameter configuration. Specifically, in step S2001, the initialization and parameter configuration unit 2020 configures key signals such as NR SSB/RMSI/OSI that are prone to conflict with LTE CRS signals in the NR exclusive frequency domain with a bandwidth of 20M-50M, that is, 30M. Therefore, the problem of conflict with the RE resources occupied by the LTE CRS is effectively solved, and schemes such as LTE puncturing, NR puncturing, and M subframes are not required, thereby reducing the complexity of the 50M DSS technical scheme.
  • key signals such as NR SSB/RMSI/OSI that are prone to conflict with LTE CRS signals in the NR exclusive frequency domain with a bandwidth of 20M-50M, that is, 30M. Therefore, the problem of conflict with the RE resources occupied by the LTE CRS is effectively solved, and schemes such as LTE puncturing, NR puncturing, and M subframes are not required, thereby reducing the complexity of the 50M D
  • the initialization and parameter configuration unit 2020 configures the LTE PDCCH in the LTE frequency domain of 0-20M, and allocates OFDM symbols to it.
  • the OFDM symbols of the LTE PDCCH are increased from 2 to 3 (as shown by the light arrow in the lower left of Figure 1), thereby breaking the traditional scheme.
  • the limitation of only 2 OFDM symbols (as shown in Figure 5, the third symbol is allocated to the NR PDCCH in the related art) can improve the PDCCH capacity of LTE and increase the number of LTE users that can be scheduled.
  • the NR PRB detection unit 2030 detects, for example, the NR PRB occupied bandwidth every predetermined time, such as 1 second.
  • the physical resource module PRB is the physical resource allocation unit of the air interface, which is 12 consecutive carrier resources in the frequency domain, and is 180KHz in the case of a carrier interval of 15KHz.
  • the interval of 1 second is illustrated as the predetermined time, but the time interval for detecting the NR PRB can be appropriately set according to specific needs, for example, 10 seconds or the like.
  • the NR PRB resource occupancy detection may not be performed periodically at predetermined time intervals, but may be performed at a preset timing.
  • the NR PRB detection unit 2030 detects the maximum occupied bandwidth of the NR PRB. In some embodiments, in this step S2003, the NR PRB detection unit 2030 detects the average occupied bandwidth of the NR PRBs. Which type of occupied bandwidth is specifically detected can be set as required.
  • step S2006 the DSS/SSS function execution unit 2050 configures two OFDM symbols numbered "0, 1" for the NR PDCCH in the NR exclusive frequency domain (20M-50M).
  • step S2007 the DSS/SSS function execution unit 2050 performs SSS, ie static spectrum sharing, configures the NR PDSCH in the NR-exclusive frequency domain (20M-50M), and uses a downward call from 50M to 20M (bandwidth 30M). way to call NR spectrum resources.
  • SSS ie static spectrum sharing
  • the LTE control channel and traffic channel will not collide, so that the performance and capacity loss of LTE and NR can be effectively reduced.
  • step S2004 in the case where the occupied bandwidth of the NR PRB is greater than 30M, that is, greater than the exclusive bandwidth of the NR (in the case of "Yes" in step S2004), for the smooth development of the NR service, the NR PRB needs to be extended to the LTE frequency domain.
  • step S2009 the DSS/SSS function execution unit 2050 configures three OFDM symbols numbered 0-2 for the NR PDCCH in the NR exclusive frequency domain (20M-50M).
  • the capacity of the NR PDCCH can be increased, the number of NR schedulable users can be increased, and the CCE aggregation level can be improved, thereby improving the NR edge user experience.
  • the DSS/SSS function execution unit 2050 is configured to extend the NR PDSCH from the NR exclusive frequency domain of 20M-50M above to the 0-20M LTE frequency domain below, and is configured to extend to the 0-20M area of LTE.
  • NR PDSCH avoids collision with REs occupied by LTE CRS through RE-level rate matching.
  • the NR PDCCH is increased from 1 OFDM symbol to 2 by migrating key signals such as NR SSB/RMSI/OSI (which are prone to conflict with LTE CRS) to the NR exclusive area.
  • migrating key signals such as NR SSB/RMSI/OSI (which are prone to conflict with LTE CRS)
  • ⁇ 3 OFDM symbols, and the frequency domain is also increased from less than or equal to 20M to 30M, which can increase the PDCCH capacity of NR, increase the number of NR schedulable users, improve the CCE aggregation level, and improve the NR edge user experience.
  • the spectrum sharing apparatus 2000 does not need to adopt LTE/NR puncturing or M subframe scheme, through signal location migration such as NR SSB/RMSI/OSI, PDCCH capacity improvement and static and dynamic
  • the method of combining spectrum resource sharing technology effectively solves the LTE/NR conflict avoidance problem, reduces the performance and capacity loss of LTE and NR, and reduces the complexity of the technical solution for realizing LTE and NR conflict avoidance.
  • Network flexibility and resource utilization improve 4G/5G user experience, reduce DSS operation, maintenance and optimization costs, and help to rapidly promote the rapid development of 5G services and the surge of 5G SA users.
  • the spectrum sharing apparatus 2000 can also increase the number of OFDM symbols of the LTE PDCCH according to the detected size of the LTE PBR, thus, the PDCCH capacity of the LTE can be improved, and the LTE schedulable capacity can be increased.
  • the number of users can flexibly apply spectrum resources, thereby improving the resource utilization of the system.
  • FIG. 6 shows an exemplary configuration of a computing device 300 in which embodiments in accordance with the present disclosure may be implemented.
  • Computing device 300 is an example of a hardware device to which the above-described aspects of the present disclosure may be applied.
  • Computing device 300 may be any machine configured to perform processing and/or computation.
  • Computing device 300 may be, but is not limited to, a workstation, server, desktop computer, laptop computer, tablet computer, personal data assistant (PDA), smartphone, vehicle-mounted computer, or a combination of the above.
  • PDA personal data assistant
  • computing device 300 may include one or more elements that may connect or communicate with bus 302 via one or more interfaces.
  • the bus 302 may include, but is not limited to, an Industry Standard Architecture (ISA) bus, a Micro Channel Architecture (MCA) bus, an Enhanced ISA (EISA) bus, a Video Electronics Standards Association (VESA) local bus, and Peripheral Component Interconnect (PCI) bus, etc.
  • Computing device 300 may include, for example, one or more processors 304 , one or more input devices 306 , and one or more output devices 308 .
  • the one or more processors 304 may be any kind of processors, and may include, but are not limited to, one or more general-purpose processors or special-purpose processors (such as special-purpose processing chips).
  • Each processor 304 may correspond to, for example, the processing circuit 2010 in FIG. 2 , and is configured to implement the functions of the spectrum sharing apparatus 2000 of the present disclosure.
  • Input device 306 may be any type of input device capable of inputting information to a computing device, and may include, but is not limited to, a mouse, keyboard, touch screen, microphone, and/or remote controller.
  • Output device 308 may be any type of device capable of presenting information, and may include, but is not limited to, displays, speakers, video/audio output terminals, vibrators, and/or printers.
  • Computing device 300 may also include or be connected to non-transitory storage device 314, which may be any storage device that is non-transitory and may enable data storage, and may include, but is not limited to, disk drives, optical storage device, solid state memory, floppy disk, flexible disk, hard disk, magnetic tape or any other magnetic medium, compact disk or any other optical medium, cache memory and/or any other memory chip or module, and/or from which a computer can read data , instructions and/or code in any other medium.
  • Computing device 300 may also include random access memory (RAM) 310 and read only memory (ROM) 312 .
  • RAM 310 may store programs, utilities or processes to be executed in a non-volatile manner.
  • RAM 310 may provide volatile data storage and store instructions related to the operation of computing device 300 .
  • Computing device 300 may also include a network/bus interface 316 coupled to data link 318 .
  • the network/bus interface 316 may be any kind of device or system capable of enabling communication with external devices and/or networks, and may include, but is not limited to, modems, network cards, infrared communication devices, wireless communication devices, and/or chipsets such as Bluetooth TM devices, 802.11 devices, WiFi devices, WiMax devices, cellular communication facilities, etc.).
  • the present disclosure is embodied as a system, apparatus, method, or computer-readable medium (eg, a non-transitory storage medium) as a computer program product. Accordingly, the present disclosure may be implemented in various forms, such as an entirely hardware embodiment, an entirely software embodiment (including firmware, resident software, microprogram code, etc.), or both software and hardware, where Hereinafter will be referred to as a "circuit", “module” or “system”. Furthermore, the present disclosure may also be embodied in any tangible media form as a computer program product having computer-usable program code stored thereon.
  • each block in the flowchart or block diagrams may represent a module, segment, or portion of program code, which comprises one or more executable instructions for implementing the specified logical function(s).
  • the functions noted in the blocks may occur out of the order noted in the figures. For example, two blocks illustrated in connection may, in fact, be executed concurrently, or in some cases may be executed in the reverse order illustrated, depending upon the functionality involved.
  • each block of the block diagrams and/or flowchart illustrations, and combinations of blocks in the block diagrams and/or flowchart illustrations can be implemented by special purpose hardware-based systems, or by combinations of special purpose hardware and computer instructions, to perform a specific function or operation.

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Abstract

本公开涉及频谱共享装置、频谱共享方法以及计算机可读存储介质。频谱共享装置包括处理电路，处理电路被配置为：进行初始化及参数配置，将NR控制信道配置在NR独占频域；检测NR物理资源块即NR PBR的占用带宽；基于检测出的所述NR PRB的占用带宽，对用于开启/关闭DSS即动态频谱共享功能的功能开关进行打开/关闭控制；以及基于所述功能开关的打开/关闭状态，执行频谱资源的分配。本公开不仅适用于50M DSS，也适用于大于50M DSS，比如55M，60M，80M,100M等DSS，还适用于小于50M DSS，比如30M，35M，40M，45M等DSS。根据本公开，在4G/5G频谱资源共享中，能够减少LTE与NR 1：1配置时的LTE和NR性能及容量损失。

Description

频谱共享装置、频谱共享方法及计算机可读存储介质
相关申请的交叉引用
本申请要求2021年2月5日提交的标题为“频谱共享装置、频谱共享方法及计算机可读存储介质”的中国专利申请CN202110159966.X的优先权，该CN申请的公开内容通过引用整体并入于此。
技术领域
本公开涉及频谱共享装置、频谱共享方法及存储介质。更具体地，本公开涉及在4G/5G移动通信网络中动态共享频谱资源的技术。
背景技术
频谱是通信领域的稀缺资源，随着5G技术发展和5G业务的不断增长，对频谱资源的需求量也急剧上升，作为解决频谱供需矛盾的有效方式之一，DSS(Dynamic spectrum sharing，动态频谱共享)受到广泛关注。通过DSS技术能够实现4G/5G动态频谱共享，从而在有限频谱资源上满足4G/5G用户各自的流量需求，利用频谱的瞬间动态共享为4G和5G设备提供最佳性能。
发明内容
但是，DSS技术中需要避免LTE(Long Term Evolution，长期演进)与NR(New Radio，新空口，可以用来指代5G网络)之间的信号冲突。
在相关技术中，例如，在如图5所示的共享频带资源的方案中，在50M带宽的频谱资源中，运营商的LTE频域配置在0-20M的范围，并且LTE PDCCH(Physical Downlink Control Channel，物理下行控制信道)分配有编号为“0、1”的2个OFDM(Orthogonal Frequency Division Multiplexing，正交频分复用)符号，紧接着LTE PDCCH的2个OFDM符号，为NR PDCCH分配编号为“2”的1个OFDM符号。根据图5可知，NR PDCCH的频域范围是小于等于20M的，因此，由于该NR PDCCH的符号数只有1个且带宽受限，所以难以调度50M的大带宽的PDSCH(Physical Downlink Shared Channel物理下行共享信道)。
另外，根据图5可知，在20M-50M的NR独占频域中，NR PDSCH的符号位置是超 前NR PDCCH和NR DMRS(Demodulation Reference Signal，解调参考信号)的符号位置的，因此，不可避免地会影响到NR终端的解调性能。进而，在图5所示的相关技术的频谱资源分配方案中，NR SSB(Synchronization Signal and PBCH block，同步信号块)等信号与LTE CRS RE都存在于0-20M的频域中，所以容易发生冲突，需要采用LTE打孔、NR打孔或M子帧等解决方案，从而增加了技术上的复杂度，同时LTE和NR性能和容量受损严重。
本公开的一个目的在于提供一种在4G/5G频谱资源共享中能够减少LTE与NR 1：1配置时的LTE和NR性能及容量损失的频谱共享装置、频谱共享方法及存储介质。
在下文中给出了关于本公开的简要概述，以便提供关于本公开的一些方面的基本理解。但是，应当理解，这个概述并不是关于本公开的穷举性概述。它并不意图用来确定本公开的关键性部分或重要部分，也不是意图用来限定本公开的范围。其目的仅仅是以简化的形式给出关于本公开的某些概念，以此作为稍后给出的更详细描述的前序。
根据本公开的一个方面，提供一种频谱共享装置，用于在LTE即长期演进与NR即新空口为1:1配置的场景中共享频谱资源，其中，所述频谱共享装置包括处理电路，所述处理电路被配置为：进行初始化及参数配置，将NR控制信道配置在NR独占频域；检测NR物理资源块即NR PBR的占用带宽；基于检测出的所述NR PRB的占用带宽，对用于开启/关闭DSS即动态频谱共享功能的功能开关进行打开/关闭控制；以及基于所述功能开关的打开/关闭状态，执行频谱资源的分配。
根据本公开的另一方面，提供一种频谱共享方法，用于在LTE即长期演进与NR即新空口为1:1配置的场景中共享频谱资源，其中，所述频谱共享方法包括如下步骤：进行初始化及参数配置，将NR控制信道配置在NR独占频域；检测NR物理资源块(NR PBR)的占用带宽；基于检测出的所述NR PRB的占用带宽，对用于开启/关闭DSS即动态频谱共享功能的功能开关进行打开/关闭控制；以及基于所述功能开关的打开/关闭状态，执行频谱资源的分配。
根据本公开的另一方面，提供一种计算机可读存储介质，包括可执行指令，当所述可执行指令由计算机执行时，使所述计算机执行上述频谱共享方法。
根据本公开，在4G/5G频谱资源共享中，能够减少LTE与NR 1：1配置时的LTE和NR性能和容量损失。本专利方法不仅适用于50M DSS，也适用于大于50M DSS，比如55M，60M，80M,100M等DSS，还适用于小于50M DSS，比如30M，35M，40M，45M 等DSS。
附图说明
构成说明书的一部分的附图描述了本公开的实施例，并且连同说明书一起用于解释本公开的原理。参照附图，根据下面的详细描述，可以更清楚地理解本公开，其中：
图1是示意地示出本公开的实施例的频谱共享装置2000中的频谱资源分配的图；
图2是示意地示出本公开的实施例的频谱共享装置2000的例示性的配置框图；
图3是简单地示出本公开的一实施例的频谱共享装置2000中执行的频谱共享方法的概要的流程图。
图4是更详细地示出本公开的实施例的频谱共享装置2000中执行的频谱共享处理过程的一个例示性的流程图；
图5是示意地示出相关技术中频谱共享装置的频谱资源分配的图；
图6是示意地示出实现本公开的实施例的计算设备300的示例性的配置框图。
具体实施方式
在下文中，将参照附图详细地描述本公开内容的优选实施例。需要注意的是，在本说明书和附图中，用相同的附图标记来表示具有基本相同的功能和结构的结构元件，并且省略对这些结构元件的重复说明。
以下，结合附图说明本公开的实施例的频谱共享技术的例示性的实施例。
图1是示意地示出本公开的实施例的频谱共享装置2000中的频谱资源分配的图。
如图1所示，相对图5的相关技术，本公开：
1)将NR SSB/RMSI/OSI等关键信号迁移到NR独占的20M～50M的30M大小的频域，从而有效地解决了与LTE CRS所占用的RE资源冲突的问题，并在50M内做(LTE/NR)动态频谱共享。其中，LTE动态频谱共享范围为0-20M，NR静态频谱共享(SSS，Static Spectrum Sharing)范围为30～50M，见图中深色虚横线和深色虚箭头部分，不超过黑色实横线；NR动态频谱共享(DSS)范围为0～20M，见图中浅色虚横线和浅色虚箭头部分。从而减少了LTE和NR性能和容量损失，同时方案实现复杂度降低。
2)将NR PDCCH从左下面第3个符号(仅1个符号)，迁移到NR独占频域，并扩展到2～3个OFDM符号(深色实箭头)，频域也从小于等于20M提升到30M，从而提升了NR的PDCCH容量，增加了能够调度的NR用户数，并提升了CCE(控制信道元素) 的聚合等级，改善了NR边缘用户体验。
3)当NR业务量变小时，NR业务采用从50M向20M(带宽为30M)向下调用的方式来调用NR频谱资源。并且，NR业务不超过30M时，没有必要采用DSS，所以关闭了NR/LTE动态频谱共享DSS功能，NR/LTE不会发生控制信道、业务信道的信号重叠或冲突，实际上采用的是静态频谱共享SSS方式。
4)当NR业务量变大时，启动动态频谱共享DSS功能，NR PDSCH从上面的30M延展到下面的LTE的20M，延展到LTE 20M区域的NR PDSCH通过RE(Resource Element，资源元素)级速率匹配来避免与LTE CRS(Cell Reference Signal，小区参考信号)所占用的RE资源冲突。
5)当LTE业务量变大时，还可以采用CFI(Control Format Indicator，控制格式指示)动态指示，将LTE PDCCH从2个OFDM符号提升到3个OFDM符号(浅色实箭头)，从而突破传统方案中的2个OFDM符号的限制(第3个OFDM符号分配给了NR PDCCH)，从而提升了LTE的PDCCH容量(即增加了能够调度的LTE用户数)。
另外，这里，“50M”仅是作为资源共享的带宽大小的一个例子，考虑保护带宽等，例如，共享带宽大小也可以为30M，35M，40M，45M，55M，60M，80M，100M等。
图2是示意地示出本公开的实施例的频谱共享装置2000的例示性的配置框图。
在一些实施例中，如图2所示，频谱共享装置2000可以包括处理电路2010。频谱共享装置2000的处理电路2010提供频谱共享装置2000的各种功能。在一些实施例中，频谱共享装置2000的处理电路2010可以被配置为用于执行频谱共享装置2000中的频谱共享方法。
处理电路2010可以指在计算系统中执行功能的数字电路系统、模拟电路系统或混合信号(模拟和数字的组合)电路系统的各种实现。处理电路可以包括例如诸如集成电路(IC)、专用集成电路(ASIC)这样的电路、单独处理器核心的部分或电路、整个处理器核心、单独的处理器、诸如现场可编程门阵列(FPGA)的可编程硬件设备、和/或包括多个处理器的系统。
在一些实施例中，处理电路2010可以包括初始化及参数配置单元2020、NR PRB(物理资源块)检测单元2030、DSS功能开关控制单元2040、DSS/SSS功能执行单元2050。其中，初始化及参数配置单元2020被配置为执行后述图3的步骤S1001、图4的流程图中的步骤S2001、S2002，NR PRB检测单元2030被配置为执行后述图3的步骤S1002、图4的流程图中的步骤S2003，DSS功能开关控制单元2040被配置为执行 后述图3的流程图中的步骤S1003以及图4的S2004～S2005、S2008，DSS/SSS功能执行单元2050被配置为执行后述图3的流程图中的步骤S1004以及图4的流程图中的步骤S2006～S2007、S2009～S2010。
在一些实施例中，频谱共享装置2000还可以包括存储器(未图示)。频谱共享装置2000的存储器可以存储由处理电路2010产生的信息以及用于频谱共享装置2000操作的程序和数据。存储器可以是易失性存储器和/或非易失性存储器。例如，存储器可以包括但不限于随机存取存储器(RAM)、动态随机存取存储器(DRAM)、静态随机存取存储器(SRAM)、只读存储器(ROM)以及闪存存储器。
另外，频谱共享装置2000可以以芯片级来实现，或者也可以通过包括其它外部部件而以设备级来实现。
应当理解，上述初始化及参数配置单元2020、NR PRB检测单元2030以及DSS/SSS功能执行单元2040仅仅是根据其所实现的具体功能所划分的逻辑模块，而不是用于限制具体的实现方式。在实际实现时，上述各个单元可被实现为独立的物理实体，或者也可由单个实体(例如，处理器(CPU或DSP等)、集成电路等)来实现。
图3是简单地示出本公开的一些实施例的频谱共享装置2000中执行的频谱共享方法的例示性的流程图。以下，结合图3简要说明本公开的频谱资源共享，首先，在步骤S1001中，在初始化流程中，将NR SSB/RMSI(Remaining minimum system information，剩余最小系统信息)/OSI(Other System Information，其他系统消息)等控制信道配置在20M-50M，即NR的独占频域。进而，在初始化过程中，将LTE PDCCH配置在0-20M的LTE频域，并分配2～3个OFDM符号。
然后，在步骤S1002中，检测NR PRB资源占用情况。在一些实施例中，每隔预定时间，例如1S、10S等，定期地检测NR PRB最大占用带宽。在一些实施例中，也可以在设定的时间检测NR PRB最大占用带宽。另外，在一些实施例中，也可以不检测NR PRB最大占用带宽，而检测NR PRB平均占用带宽。
在步骤S1003中，根据检测出的NR PRB资源占用情况，对用于开启/关闭DSS功能的功能开关进行打开/关闭控制。具体的打开/关闭控制过程，在后面详细描述。
然后，在步骤S1004中，基于功能开关的状态(打开/关闭)，相应地执行频谱资源分配(DSS/SSS)。
以下结合图4，详细说明本公开的频谱共享方法。图4是更详细地示出本公开的一些实施例的频谱共享装置2000中执行的频谱共享方法的例示性的流程图。
首先，在DSS开机阶段，初始化及参数配置单元2020进行初始化和参数配置。具体而言，在步骤S2001中，初始化及参数配置单元2020将NR SSB/RMSI/OSI等易与LTE CRS信号发成冲突的关键信号配置在20M-50M即30M带宽的NR独占频域。由此，有效地解决与LTE CRS所占用的RE资源冲突的问题，而且不需要采用LTE打孔、NR打孔和M子帧等方案，从而降低了50M DSS技术方案的复杂度。
进而，在步骤S2002中，初始化及参数配置单元2020将LTE PDCCH配置在0-20M的LTE频域，并为其分配OFDM符号。在一些实施例中，当LTE的业务量超过预先设定的阈值时，将LTE PDCCH的OFDM符号从2个增加到3个(如图1左下的浅色箭头所示)，从而打破传统方案中仅有2个OFDM符号的限制(如图5所示，相关技术中将第3个符号分配给了NR PDCCH)，能够提升LTE的PDCCH容量，增加了能够调度的LTE用户数。
然后，在步骤S2003中，NR PRB检测单元2030例如每隔预定时间，如1秒，检测NR PRB占用带宽。其中，物理资源模块PRB是空中接口的物理资源分配单位，是频域上12个连续的载波资源，在15KHz的载波间隔的情况下是180KHz。另外，在此，作为预定时间例示了1秒的间隔，但检测NR PRB的时间间隔是可以根据具体需要适当地设定的，例如也可以是10秒等。进而，也可以并非每隔预定时间定期执行NR PRB资源占用检测，而是在预先设定的定时执行。
在一些实施例中，在该步骤S2003中，NR PRB检测单元2030检测NR PRB的最大占用带宽。在一些实施例中，在该步骤S2003中，NR PRB检测单元2030检测NR PRB的平均占用带宽。具体检测哪一种占用带宽，可以根据需要进行设定。
接下来，在步骤S2004中，DSS功能开关控制单元2040基于由NR PRB检测单元2030检测出的NR PRB带宽占用情况，对用于开启/关闭DSS的功能开关进行打开/关闭控制。具体而言，DSS功能开关控制单元2040将NR PRB占用带宽与NR独占带宽(30M)进行比较，在NR PRB占用带宽小于等于30M即小于等于NR独占带宽的情况下(步骤S2004中“否”的情况下)，在频域上，NR PRB是不需要向LTE频域延展的，因此处理进入步骤S2005，DSS功能开关控制单元2040关闭DSS功能开关(DSS_switch＝off)。
接下来，在步骤S2006中，DSS/SSS功能执行单元2050在NR独占频域(20M-50M)为NR PDCCH配置编号为“0、1”的两个OFDM符号。
然后，在步骤S2007中，DSS/SSS功能执行单元2050执行SSS即静态频谱共享， 将NR PDSCH配置在NR独占的频域(20M-50M)，并且采用从50M到20M(带宽30M)向下调用的方式调用NR频谱资源。此时，LTE控制信道、业务信道不会发生冲突，从而能够有效减少LTE和NR性能和容量损失。
返回步骤S2004的说明，在NR PRB占用带宽大于30M即大于NR独占带宽的情况下(步骤S2004中“是”的情况下)，为了NR业务的顺利展开，NR PRB需要向LTE频域延展，此时处理进入步骤S2008，DSS功能开关控制单元2040开启DSS功能开关(DSS_switch＝on)
然后，在步骤S2009中，DSS/SSS功能执行单元2050在NR独占频域(20M-50M)为NR PDCCH配置编号为0-2的三个OFDM符号。通过增加NR PDCCH的符号数量，能够提高NR PDCCH的容量、增加NR可调度的用户数，能够提升CCE聚合等级，从而改善NR边缘用户体验。
在步骤S2010中，DSS/SSS功能执行单元2050配置为：NR PDSCH从上面的20M-50M的NR独占频域向下方的0-20MLTE频域延展，并且配置为延展到LTE的0-20M区域的NR PDSCH通过RE级速率匹配来避免与LTE CRS所占用的RE冲突。
根据本公开的例示性的实施例的频谱共享装置2000，通过将NR SSB/RMSI/OSI等关键信号(易跟LTE CRS发生冲突)迁移NR独占区域，将NR PDCCH从1个OFDM符号提升到2～3个OFDM符号，频域也从小于等于20M提升到30M，从而能够提升NR的PDCCH容量、增加NR可调度的用户数、提升CCE聚合等级、改善NR边缘用户体验。
另外，根据本公开的例示性的实施例的频谱共享装置2000，不需要采用LTE/NR打孔或M子帧方案，通过NR SSB/RMSI/OSI等信号位置迁移、PDCCH容量提升和静态、动态频谱资源共享技术相结合的方法，有效地解决了LTE/NR冲突避让问题，减少了LTE和NR性能和容量损失，同时降低了实现LTE与NR冲突避让的技术方案的复杂度，提高了DSS组网灵活性和资源利用率，提升了4G/5G用户体验，并降低了DSS运维和优化成本，有助于迅速推进5G业务快速开展和5G SA用户的激增。
进而，根据本公开的例示性的实施例的频谱共享装置2000，还能够根据检测到的LTE PBR的大小而增加LTE PDCCH的OFDM符号数量，因此，能够提升LTE的PDCCH容量、增加LTE能够调度的用户数，能够灵活应用频谱资源，从而提升系统的资源利用率。
接下来，图6示出了可以实现根据本公开的实施例的计算设备300的示例性配置。计算设备300是可以应用本公开的上述方面的硬件设备的实例。计算设备300可以是 被配置为执行处理和/或计算的任何机器。计算设备300可以是但不限制于工作站、服务器、台式计算机、膝上型计算机、平板计算机、个人数据助手(PDA)、智能电话、车载计算机或以上组合。
如图6所示，计算设备300可以包括可以经由一个或多个接口与总线302连接或通信的一个或多个元件。总线302可以包括但不限于，工业标准架构(Industry Standard Architecture，ISA)总线、微通道架构(Micro Channel Architecture，MCA)总线、增强ISA(EISA)总线、视频电子标准协会(VESA)局部总线、以及外设组件互连(PCI)总线等。计算设备300可以包括例如一个或多个处理器304、一个或多个输入设备306、以及一个或多个输出设备308。一个或多个处理器304可以是任何种类的处理器，并且可以包括但不限于一个或多个通用处理器或专用处理器(诸如专用处理芯片)。各处理器304例如可以分别对应于图2中的处理电路2010，被配置为能够实现本公开的频谱共享装置2000的功能。输入设备306可以是能够向计算设备输入信息的任何类型的输入设备，并且可以包括但不限于鼠标、键盘、触摸屏、麦克风和/或远程控制器。输出设备308可以是能够呈现信息的任何类型的设备，并且可以包括但不限于显示器、扬声器、视频/音频输出终端、振动器和/或打印机。
计算设备300还可以包括或被连接至非暂态存储设备314，该非暂态存储设备314可以是任何非暂态的并且可以实现数据存储的存储设备，并且可以包括但不限于盘驱动器、光存储设备、固态存储器、软盘、柔性盘、硬盘、磁带或任何其他磁性介质、压缩盘或任何其他光学介质、缓存存储器和/或任何其他存储芯片或模块、和/或计算机可以从其中读取数据、指令和/或代码的其他任何介质。计算设备300还可以包括随机存取存储器(RAM)310和只读存储器(ROM)312。ROM 312可以以非易失性方式存储待执行的程序、实用程序或进程。RAM 310可提供易失性数据存储，并存储与计算设备300的操作相关的指令。计算设备300还可包括耦接至数据链路318的网络/总线接口316。网络/总线接口316可以是能够启用与外部装置和/或网络通信的任何种类的设备或系统，并且可以包括但不限于调制解调器、网络卡、红外线通信设备、无线通信设备和/或芯片集(诸如蓝牙 TM设备、802.11设备、WiFi设备、WiMax设备、蜂窝通信设施等)。
应当理解，本说明书中“实施例”或类似表达方式的引用是指结合该实施例所述的特定特征、结构、或特性系包括在本公开的至少一具体实施例中。因此，在本说明书中，“在本公开的实施例中”及类似表达方式的用语的出现未必指相同的实施例。
本领域技术人员应当知道，本公开被实施为一系统、装置、方法或作为计算机程序产品的计算机可读媒体(例如非瞬态存储介质)。因此，本公开可以实施为各种形式，例如完全的硬件实施例、完全的软件实施例(包括固件、常驻软件、微程序代码等)，或者也可实施为软件与硬件的实施形式，在以下会被称为“电路”、“模块”或“系统”。此外，本公开也可以任何有形的媒体形式实施为计算机程序产品，其具有计算机可使用程序代码存储于其上。
本公开的相关叙述参照根据本公开具体实施例的系统、装置、方法及计算机程序产品的流程图和/或框图来进行说明。可以理解每一个流程图和/或框图中的每一个块，以及流程图和/或框图中的块的任何组合，可以使用计算机程序指令来实施。这些计算机程序指令可供通用型计算机或特殊计算机的处理器或其它可编程数据处理装置所组成的机器来执行，而指令经由计算机或其它可编程数据处理装置处理以便实施流程图和/或框图中所说明的功能或操作。
在附图中显示根据本公开各种实施例的系统、装置、方法及计算机程序产品可实施的架构、功能及操作的流程图及框图。因此，流程图或框图中的每个块可表示一模块、区段、或部分的程序代码，其包括一个或多个可执行指令，以实施指定的逻辑功能。另外应当注意，在某些其它的实施例中，块所述的功能可以不按图中所示的顺序进行。举例来说，两个图示相连接的块事实上也可以同时执行，或根据所涉及的功能在某些情况下也可以按图标相反的顺序执行。此外还需注意，每个框图和/或流程图的块，以及框图和/或流程图中块的组合，可藉由基于专用硬件的系统来实施，或者藉由专用硬件与计算机指令的组合，来执行特定的功能或操作。
以上已经描述了本公开的各实施例，上述说明是示例性的，并非穷尽性的，并且也不限于所披露的各实施例。在不偏离所说明的各实施例的范围和精神的情况下，对于本技术领域的普通技术人员来说许多修改和变更都是显而易见的。本文中所用术语的选择，旨在最好地解释各实施例的原理、实际应用或对市场技术的技术改进，或者使本技术领域的其它普通技术人员能理解本文披露的各实施例。

Claims (17)

  1. 一种频谱共享装置，用于在长期演进(LTE)与新空口(NR)为1:1配置的场景中共享频谱资源，其中，
    所述频谱共享装置包括处理电路，
    所述处理电路被配置为：
    进行初始化及参数配置，将NR控制信道配置在NR独占频域；
    检测NR物理资源块(NR PBR)的占用带宽；
    基于检测出的所述NR PRB的占用带宽，对用于开启/关闭动态频谱共享(DSS)功能的功能开关进行打开/关闭控制；以及
    基于所述功能开关的打开/关闭状态，执行频谱资源的分配。
  2. 根据权利要求1所述的频谱共享装置，其中，
    所述处理电路进一步被配置为：
    每隔预定时间，检测所述NR PRB的最大占用带宽。
  3. 根据权利要求1所述的频谱共享装置，其中，
    所述处理电路进一步被配置为：
    每隔预定时间，检测所述NR PRB的平均占用带宽。
  4. 根据权利要求1至3中任意一项所述的频谱共享装置，其中，
    所述处理电路进一步被配置为：
    在检测出的所述NR PRB的占用带宽大于预定阈值的情况下，打开所述功能开关，
    在检测出的所述NR PRB的占用带宽小于或等于预定阈值的情况下，关闭所述功能开关。
  5. 根据权利要求4所述的频谱共享装置，其中，
    所述预定阈值为30M。
  6. 根据权利要求4所述的频谱共享装置，其中，
    所述处理电路进一步被配置为：
    在打开所述功能开关的情况下，在所述NR独占频域中，为NR物理下行控制信道(NR PDCCH)配置三个正交频分复用符号，根据所述NR PRB的占用带宽使NR物理下行共享信道(NR PDSCH)从所述NR独占频域向LTE频域延展。
  7. 根据权利要求4所述的频谱共享装置，其中，
    所述处理电路进一步被配置为：
    在关闭所述功能开关的情况下，在所述NR独占频域中，为所述NR PDCCH配置两个所述正交频分复用符号，并将所述NR PDSCH配置在所述NR独占频域中。
  8. 根据权利要求1所述的频谱共享装置，其中，
    所述处理电路被配置为：
    在进行初始化及参数配置时，在LTE PRB大于预先设定的阈值的情况下为LTE PDCCH分配三个正交频分复用符号，否则为LTE PDCCH分配两个正交频分复用符号。
  9. 一种频谱共享方法，用于在长期演进(LTE)与新空口(NR)为1:1配置的场景中共享频谱资源，其中，
    所述频谱共享方法包括如下步骤：
    进行初始化及参数配置，将NR控制信道配置在NR独占频域；
    检测NR物理资源块(NR PBR)的占用带宽；
    基于检测出的所述NR PRB的占用带宽，对用于开启/关闭动态频谱共享(DSS)功能的功能开关进行打开/关闭控制；以及
    基于所述功能开关的打开/关闭状态，执行频谱资源的分配。
  10. 根据权利要求9所述的频谱共享方法，其中，
    每隔预定时间，检测所述NR PRB的最大占用带宽。
  11. 根据权利要求9所述的频谱共享方法，其中，
    每隔预定时间，检测所述NR PRB的平均占用带宽。
  12. 根据权利要求9至11中任意一项所述的频谱共享方法，其中，
    在检测出的所述NR PRB的占用带宽大于预定阈值的情况下，打开所述功能开关，
    在检测出的所述NR PRB的占用带宽小于或等于预定阈值的情况下，关闭所述功能开关。
  13. 根据权利要求12所述的频谱共享方法，其中，
    所述预定阈值为30M。
  14. 根据权利要求12所述的频谱共享方法，其中，
    在打开所述功能开关的情况下，在所述NR独占频域中，为NR物理下行控制信道(NR PDCCH)配置三个正交频分复用符号，根据所述NR PRB的占用带宽使NR物理下行共享信道(NR PDSCH)从所述NR独占频域向LTE频域延展。
  15. 根据权利要求12所述的频谱共享方法，其中，
    在关闭所述功能开关的情况下，在所述NR独占频域中，为所述NR PDCCH配置两个所述正交频分复用符号，并将所述NR PDSCH配置在所述NR独占频域中。
  16. 根据权利要求9所述的频谱共享方法，其中，
    在进行初始化及参数配置时，在LTE PRB大于预先设定的阈值的情况下为LTE PDCCH分配三个正交频分复用符号，否则为LTE PDCCH分配两个正交频分复用符号。
  17. 一种计算机可读存储介质，包括可执行指令，当所述可执行指令由计算机执行时，使所述计算机执行权利要求9至16中的任一项所述的频谱共享方法。
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