Spectrum management device and method and storage medium

Abstract

The present disclosure relates to the field of communication technology. According to the spectrum management device provided in the embodiment of the present disclosure, it is used to manage the use of spectrum resources of a first system by a second system, and the second system has a lower right to use the spectrum of the first system than the first system. The spectrum management device includes a processing circuit, which is configured to identify reference point information for the second system, and determine the spectrum resources for the second system based on whether the reference point information is positive or negative, wherein when the reference point information is positive, the processing circuit determines that the second system is suitable for using the spectrum resources of the first system; and when the reference point information is negative, the processing circuit determines that the second system is not suitable for using the spectrum resources of the first system.

Description

[0001] This invention application is a divisional application of the invention patent application with application date of April 18, 2013, application number “201310136345.5” and invention name “Spectrum Management System and Method”. Technical Field

[0002] The present disclosure relates to the field of communication technology, and more particularly, to a spectrum management system and method for performing spectrum management in communications. Background Art

[0003] With the development of wireless communication systems, users have higher and higher demands for high quality, high speed and new services. Wireless communication operators and equipment manufacturers need to continuously improve to meet users' requirements. This requires a large amount of spectrum resources to support new services and meet high-speed communication needs. However, limited spectrum resources have been allocated to fixed operators and services. New available spectrum is very scarce and / or expensive. In this case, people have proposed the concept of dynamic spectrum utilization, that is, dynamically utilizing spectrum resources that have been allocated to certain services but have not been fully utilized. For example, the spectrum of some channels on the digital TV broadcast spectrum that do not broadcast programs or the spectrum of adjacent channels can be dynamically utilized to carry out wireless mobile communications without interfering with the normal reception of TV signals.

[0004] In this application example, since the TV broadcast spectrum itself is allocated to the TV broadcast system, the TV broadcast system is regarded as the primary system, the TV set is regarded as the primary user, and the mobile communication system is regarded as the secondary system, and the receiver in the mobile communication system is regarded as the secondary user. In other words, the primary system mentioned here can refer to those systems that have the right to use the spectrum, such as the TV broadcast system, while the secondary system can refer to those systems that do not have the right to use the spectrum and only use the spectrum or adjacent spectrum appropriately when the primary system does not use the spectrum it owns. In addition, the primary and secondary systems can also have the right to use a certain spectrum at the same time, but have different priorities in the use of the spectrum.

[0005] This communication mode of coexistence of primary and secondary systems requires that the application of the secondary system does not have a negative impact on the application of the primary system, or in other words, the impact of the spectrum utilization of the secondary system can be controlled within the range allowed by the primary system. While ensuring that the interference to the primary system is within a certain range, the spectrum resources of the primary system can be allocated to multiple secondary systems.

[0006] Specifically, each primary and secondary system can be in the same frequency band or in adjacent frequency bands. When the primary and secondary systems use adjacent frequency bands, the secondary system may still interfere with the primary system due to the adjacent channel leakage ratio of the transmitter and the adjacent channel selectivity of the receiver.

[0007] According to existing regulations (for example, European Postal and Telecommunications Conference (CEPT), "Draft of ECC report: Technical and operational requirements for the operation of white space devices under geo-location approach", ECC186, January 2013), it is given how to calculate the available main system spectrum at a certain location, but it does not provide how to selectively allocate the spectrum resources to the secondary system when multiple secondary systems need to use the main system spectrum resources so as to achieve better performance in the desired aspects or more efficient overall spectrum usage.

[0008] In addition, when too many subsystems share the available spectrum of the primary system, each subsystem will only obtain a small amount of available spectrum resources, so that at least some of the subsystems cannot meet the application requirements. According to the solution proposed in CN101990289A, the spectrum resource usage requirements of all subsystems can be calculated, and then the subsystems that are not suitable for using the spectrum resources of the primary system can be removed based on factors such as priority. However, when the number of subsystems is large, this will inevitably lead to a large system overhead. Summary of the invention

[0009] The present disclosure proposes a spectrum management system and method, so that when a primary and secondary system coexist (or when multiple systems with different levels of spectrum utilization rights coexist), when multiple secondary systems compete for the use of the spectrum resources of the primary system, a better allocation plan can be provided, for example, the system overhead and / or computational complexity required to calculate the allocation plan can be reduced.

[0010] Hereinafter, the primary system is also referred to as the first system, and the secondary system is also referred to as the second system. It should be noted that in the spectrum management described below, both the first system and the second system may be one or more.

[0011] According to an embodiment of the present disclosure, a spectrum management method is provided, which is used to manage the use of spectrum resources of a first system by a second system, and the second system has a lower right to use the spectrum of the first system than the first system. The spectrum management method includes: determining a reference point, the reference point includes at least one parameter representing the corresponding spectrum usage of the second system; based on the reference point, determining at least one second system as the second system occupying the spectrum resources of the first system; and determining an allocation scheme for allocating the spectrum resources of the first system to the at least one second system.

[0012] According to an embodiment of the present disclosure, a spectrum management device is provided, which is used to manage the use of spectrum resources of a first system by a second system, and the second system has a lower right to use the spectrum of the first system than the first system. The spectrum management device includes: a reference point determination unit, which is configured to determine a reference point, and the reference point includes at least one parameter representing the corresponding spectrum usage of the second system; a second system determination unit, which is configured to determine at least one second system as a second system occupying the spectrum resources of the first system based on the reference point; and an allocation scheme determination unit, which is configured to determine an allocation scheme for allocating the spectrum resources of the first system to the at least one second system.

[0013] According to an embodiment of the present disclosure, a spectrum management device is provided, which is used to manage the use of spectrum resources of a first system by a second system, and the second system has a lower right to use the spectrum of the first system than the first system. The spectrum management device includes: a reference point determination unit, which is configured to determine a reference point, and the reference point includes at least one parameter representing the corresponding spectrum usage of the second system. At least one second system as a second system occupying the spectrum resources of the first system is determined based on the reference point, and an allocation scheme of the spectrum resources of the first system to the at least one second system is determined based on the at least one second system.

[0014] According to an embodiment of the present disclosure, a spectrum management device is provided, which is used to allocate spectrum resources of a first system to a second system. The spectrum management device includes: a second system determination unit, which is configured to determine at least one second system as a second system occupying spectrum resources of the first system based on a determined reference point. The reference point includes at least one parameter representing the corresponding spectrum usage of the second system, and the allocation scheme of the spectrum resources of the first system to the at least one second system is determined based on the at least one second system.

[0015] According to an embodiment of the present disclosure, a spectrum management device is provided, which is used to manage the use of spectrum resources of a first system by a second system, and the second system has a lower right to use the spectrum of the first system than the first system. The spectrum management device includes: an allocation scheme determination unit, which is configured to determine an allocation scheme for allocating the spectrum resources of the first system to at least one second system that is a second system occupying the spectrum resources of the first system. The at least one second system is determined based on a determined reference point, and the reference point includes at least one parameter representing the corresponding spectrum usage of the second system.

[0016] A spectrum management device provided according to an embodiment of the present disclosure includes a processing circuit, which is configured to: identify reference point information for a second system; and determine spectrum resources for the second system based on whether the reference point information is positive or negative; wherein, when the reference point information is positive, the processing circuit determines that the second system is suitable for utilizing the spectrum resources of the first system; wherein, when the reference point information is negative, the processing circuit determines that the second system is not suitable for utilizing the spectrum resources of the first system.

[0017] According to an embodiment of the present disclosure, a device for spectrum management is provided, including a processing circuit, which is configured to: send reference point information for a second system to another device for spectrum management; and receive information and system parameters of the second system managed by the other device from the other device; wherein, a positive case of the reference point information indicates that the second system is suitable for utilizing the spectrum resources of the first system, and a negative case of the reference point information indicates that the second system is not suitable for utilizing the spectrum resources of the first system.

[0018] A spectrum management method provided in accordance with an embodiment of the present disclosure includes: identifying reference point information for a second system through a processing circuit of an apparatus for spectrum management; and determining spectrum resources for the second system based on whether the reference point information is positive or negative; wherein, when the reference point information is positive, it is determined that the second system is suitable for utilizing the spectrum resources of the first system; wherein, when the reference point information is negative, it is determined that the second system is not suitable for utilizing the spectrum resources of the first system.

[0019] According to an embodiment of the present disclosure, a storage medium is provided, on which computer-readable instructions are encoded. When the computer-readable instructions are executed by a processor, the processor is caused to: identify reference point information for a second system; and determine spectrum resources for the second system based on whether the reference point information is positive or negative; wherein, when the reference point information is positive, it is determined that the second system is suitable for utilizing the spectrum resources of the first system; wherein, when the reference point information is negative, it is determined that the second system is not suitable for utilizing the spectrum resources of the first system.

[0020] By using the spectrum management device and spectrum management method provided according to the embodiments of the present disclosure, it is possible to provide a better allocation scheme. For example, by determining at least one second system as a second system using the spectrum resources of the first system based on the reference point, it is avoided to calculate for all second systems that may be allocated with the spectrum resources of the first system, thereby reducing the system overhead and / or calculation complexity required for calculating the allocation scheme. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The above and other objects, features and advantages of the present invention will be apparent from the following description of preferred embodiments and accompanying drawings which illustrate the subject matter of the present invention and its use, in which:

[0022] Figure 1 is a flowchart showing the overall process of a spectrum management method according to an embodiment of the present disclosure;

[0023] Figure 2 is a schematic diagram showing that a plurality of spectrum management devices respectively manage a plurality of second systems;

[0024] Figure 3 is a schematic diagram showing a spectrum management device managing multiple second systems;

[0025] Figure 4 is a diagram showing an example of processing related to publication of reference point information and recommendation of candidate second systems;

[0026] Figure 5 is a diagram showing another processing example related to reference point information publication and recommendation of candidate second systems;

[0027] Figure 6 is a schematic diagram showing a second system for determining to participate in spectrum resource allocation;

[0028] Figure 7 is a flow chart showing a specific method for determining a spectrum resource allocation scheme;

[0029] Figure 8 is a block diagram showing a configuration of a spectrum management apparatus according to an embodiment of the present disclosure; and

[0030] Fig. 9 is a block diagram showing a hardware configuration according to an embodiment of the present disclosure. DETAILED DESCRIPTION

[0031] Hereinafter, embodiments of the present disclosure will be described in detail with reference to the accompanying drawings.

[0032] Hereinafter, the description will be given in the following order.

[0033] 1. Overall approach to spectrum management

[0034] 2. Steps to determine the reference point

[0035] 3. Steps to determine the second system

[0036] 4. Steps to determine the allocation plan

[0037] 5. Configuration of spectrum management device

[0038] 6. Specific application scenarios of the embodiments of the present disclosure

[0039] 7. Hardware Configuration Example

[0040] 1. Overall approach to spectrum management

[0041] The following will be combined Figure 1 The overall process of the spectrum management method according to the embodiment of the present disclosure is described.

[0042] exist Figure 1 In the embodiment of the present invention, the spectrum management method starts at step S101 and proceeds to step S103.

[0043] At step S103, a reference point is determined. The reference point includes at least one parameter representing the corresponding spectrum usage of the second system. Then, the process proceeds to step S105.

[0044] At step S105, based on the determined reference point, at least one second system is determined as the second system occupying the spectrum resources of the first system. Then, the process proceeds to step S107.

[0045] At step S107, the spectrum resources of the first system are allocated to the at least one second system based on the allocation scheme determined. Then, the process proceeds to step S109 and ends.

[0046] Hereinafter, each step of the spectrum management method will be described in detail.

[0047] It is to be noted that in the following description, as an example, a television broadcasting system is taken as a first system, and respective mobile communication systems or wireless LAN systems are taken as respective second systems.

[0048] As another example, a macrocell base station and its users may be regarded as the first system, and a small cell (micro cell) base station and its users whose coverage area overlaps with the macrocell base station and share spectrum resources with the macrocell base station may be regarded as the second system.

[0049] However, it should be understood by those skilled in the art that the scenarios to which the embodiments of the present disclosure are applied are not limited thereto. For example, when an operator deploys a new base station to provide a new service, the existing base station and the services it provides have priority in spectrum use. At this time, the system consisting of the existing base station and its users can be regarded as the first system, and the system consisting of the new base station and its users can be regarded as the second system. Of course, the second system may also not include a base station, but only include multiple users who communicate with each other through the new service.

[0050] In addition, the spectrum management method herein is used to manage the use of the spectrum resources of the first system by the second system. In other words, the object of management is, for example, whether the second system uses the resources of the first system and how much the resources of the first system are used. More specifically, for example, the management performed may include not only allocating the spectrum resources of the first system to the second system that has not yet used the spectrum resources of the first system, but also no longer allocating the spectrum resources of the first system to the second system that is using the spectrum resources of the first system, and may also include adjusting the spectrum resources of the first system used by the second system that is using the spectrum resources of the first system.

[0051] 2. Steps to determine the reference point

[0052] First, the concept of reference point will be explained. As described above, the reference point includes at least one parameter of the corresponding spectrum usage of the second system. In other words, the reference point can be a set of the at least one parameter.

[0053] The spectrum usage includes at least one of the geographical location of the second system, air interface information (such as LTE (Long Range Evolution), CDMA (Code Division Multiple Access), WiFi (Wireless Fidelity), OFDM (Orthogonal Frequency Division Multiplexing) and GSM (Global System for Mobile Communications), etc.), antenna height, transmission template and frequency band. In other words, the spectrum usage may include any one of the geographical location, air interface information, antenna height, transmission template and frequency band of the second system, and may also include any multiple of them.

[0054] Therefore, the spectrum usage may differ depending on the type of the second system (for example, where the spectrum usage includes the air interface type of the second system, the spectrum usage of second systems with different air interface information types is different), or it may be common to various second systems (for example, where the spectrum usage only includes the geographical location of the second system, the spectrum usage of various second systems at the geographical location is the same).

[0055] It should be noted that in this article, spectrum usage is an inherent attribute of the second system itself related to spectrum usage. The "spectrum resource utilization of the first system by the second system" mentioned above refers to whether the second system utilizes the resources of the first system and how much it utilizes the resources of the first system.

[0056] The reference point includes a quantitative representation of the spectrum usage of the second system. In other words, the reference point may include one or more parameters, which represent the spectrum usage. For example, geographic location information can be parameterized by coordinates, antenna height can be parameterized by length, transmission template can be parameterized by number or fading of carrier frequency bands corresponding to different proportional frequency shift intervals (see, for example, IEEE 802.11p, "Wireless access in vehicular environment", 2010), and air interface information can be parameterized by different integer numbers. Therefore, the reference point including parameters can be used to represent the corresponding spectrum usage of the second system. In addition, the reference point can also include specific spectrum information corresponding to the above-mentioned spectrum usage, such as the frequency band used at a certain geographic location.

[0057] As will be described later, one or more reference points are determined, that is, one or more spectrum usages of the second system are determined as references, so that the second system is determined based on these spectrum usages as the second system utilizing the spectrum resources of the first system.

[0058] For example, the reference point may include at least one of a positive reference point and a negative reference point.

[0059] For a positive reference point, in the spectrum usage corresponding to the reference point, in terms of at least one of the parameters included in the positive reference point, the best use of the spectrum resources of the first system can be achieved, for example, the spectrum resources of the first system that can be used by the second system are the most, and such a spectrum usage is usually desirable. In other words, the positive reference point corresponds to the spectrum usage of the second system that is suitable for using the spectrum resources of the first system. Therefore, the higher the similarity between its spectrum usage and the positive reference point, the more likely it is that the second system will be allocated the spectrum resources of the first system.

[0060] On the contrary, for a negative reference point, in the spectrum usage corresponding to the reference point, in terms of at least one of the parameters included in the negative reference point, the optimal use of the spectrum resources of the first system cannot be achieved, for example, the spectrum resources of the first system available for use by the second system are the least, so such a spectrum usage is usually not desirable. Another possibility is that, in the spectrum usage corresponding to the reference point, the spectrum resources of the first system used by the second system that is using the spectrum resources of the first system are insufficient to meet the service needs of the second system, so the second system needs to obtain more spectrum resources from the first system, which will be described in more detail later. In other words, the negative reference point corresponds to the spectrum usage of the second system that is not suitable for using the spectrum resources of the first system. Therefore, the more similar its spectrum usage is to the negative reference point, the less likely it is that the second system will be allocated the spectrum resources of the first system.

[0061] Of course, the reference points may include only positive reference points, only negative reference points, or both positive and negative reference points.

[0062] A person skilled in the art should understand that, although in the following description, the reference point corresponds to a spectrum usage situation that includes only the geographic location of the second system (for the second system being a mobile communication system, its geographic location is the geographic location of the base station), the reference point can also be similarly expanded to correspond to a spectrum usage situation that includes more content.

[0063] The reference point can be determined by at least one of the following methods: 1) evaluating at least a portion of the spectrum usage of each spectrum usage of the second system; 2) based on the historical records of spectrum usage; 3) based on the extent to which the spectrum resources of the first system utilized by the second system meet the business needs of the second system; and 4) based on information from the second system regarding changes in utilization of the spectrum resources of the first system that have been released by the corresponding second system.

[0064] First, a method for evaluating at least a portion of spectrum usage of various spectrum usages of second systems will be described. In this example, the objects of evaluation are second systems at various geographical locations.

[0065] Although the evaluation may be performed for all geographical locations where the second system may exist, the number of geographical locations to be evaluated may actually be simplified. For example, the evaluation may be performed based on pre-specified geographical locations, or for geographical locations that meet predetermined conditions. As an example, the evaluation may be performed for geographical locations where a large number of second systems often appear or for geographical locations where the second system mobility is high (i.e., geographical locations where second systems frequently release spectrum or apply to use spectrum).

[0066] There are cases where multiple spectrum management devices manage multiple second systems respectively, such as Figure 2 As shown in FIG. 1 , the spectrum management device 10-1 manages the second systems 200-1 and 200-2, the spectrum management device 10-2 manages the second system 200-3, and the spectrum management device 10-3 manages the second system 200-4. At this time, one of the spectrum management devices may be responsible for calculating all reference points, or each spectrum management device may calculate the reference points of the area covered by the second system it manages, and communication between the spectrum management devices may be used to avoid repeated calculation of reference points.

[0067] The spectrum calculation for the secondary system should take into account the interference to other primary systems. A spectrum manager can access other spectrum managers and obtain the necessary information to calculate the available spectrum for the secondary system. The calculation results are then sent to the spectrum management device that manages different secondary systems.

[0068] and Figure 2 Corresponding to the situation shown in , there is also a situation where one spectrum management device manages all second systems, such as Figure 3 As shown in FIG. 1 , the spectrum management device 10 - 4 manages the second systems 200 - 5 , 200 - 6 , 200 - 7 , and 200 - 8 .

[0069] When evaluating the geographical location, a geographical location where the interference of the second system at the candidate geographical location to the first system is less than the first interference threshold and the most spectrum resources can be allocated to the second system at the candidate geographical location can be determined as a positive reference point, and / or a geographical location where the interference of the second system at the candidate geographical location to the first system is greater than or equal to the first interference threshold or the least spectrum resources can be allocated to the second system at the candidate geographical location can be determined as a negative reference point. It should be noted that the first interference threshold here can be any threshold appropriately determined by a person of ordinary skill in the art according to design requirements or actual circumstances.

[0070] Of course, the reference point can also be determined in other appropriate ways. For example, for each candidate geographical location, the interference of the second system at the geographical location to the first system has a negative weight, and the spectrum resources that the second system at the geographical location can obtain from the first system have a positive weight, and the geographical location with the largest weighted sum of the interference to each first system and the obtained spectrum resources is set as a positive reference point.

[0071] Next, a method of determining a reference point based on the history record will be described.

[0072] One way is to evaluate directly based on historical records. Since the spectrum management device managing the second system records the history of the second system obtaining spectrum resources allocated from the first system, the geographical location of the second system suitable for / unsuitable for using the spectrum resources of the first system can be determined as a reference point based on the history.

[0073] Another way is to predict the geographical location of the second system that is about to release the spectrum resources of the first system based on historical records. Since some second systems use the spectrum resources of the first system regularly, for example, the spectrum resources of the first system are released after a specific period of time each time they are used, these regularities can be obtained based on historical records, and the second same geographical location where the spectrum resources of the first system are about to be released can be predicted.

[0074] Such a geographical location can be determined as a positive reference point. This is because the spectrum resources at the geographical location are relatively abundant due to the release of spectrum resources, so it is usually desired to allocate the spectrum resources of the first system to the second system at the geographical location.

[0075] Next, a method of determining a reference point based on the extent to which the spectrum resources of the first system utilized by the second system meet the service requirements of the second system will be described.

[0076] At certain geographical locations, when the second system utilizes the resources of the first system but cannot achieve the expected communication quality requirements, it is necessary to allocate additional spectrum resources of the first system to the second system, that is, to reserve spectrum resources. At this time, the geographical location can be determined as a negative reference point.

[0077] This is because, when the second system does not have enough first system resources available, only by reducing or releasing the spectrum resource utilization of the first system near the geographical location can the second system obtain additional spectrum resources of the first system. Of course, it is even more undesirable to allocate the spectrum resources of the first system to other second systems at the geographical location. Even more, the resources of the first system used by other second systems near the geographical location should be released for use by the second system whose spectrum resource demand has not been met.

[0078] Finally, a method of determining a reference point based on information from the second system regarding changes in utilization of spectrum resources of the first system occupied by the corresponding second system release will be described.

[0079] When information is received directly from the second system or indirectly from the second system via a device such as a spectrum management device, that the second system has released the spectrum resources of the first system, the geographical location of the second system can be determined as a positive reference point. Similar to the above discussion, this is because the release of spectrum resources makes the spectrum resources at the geographical location more abundant, so it is usually desired to allocate the spectrum resources of the first system to the second system at the geographical location.

[0080] Regardless of the above methods used to determine the reference point, the determined reference point can be updated periodically, or updated only when the use of the spectrum resources by the first system and / or the second system changes, or even not updated. The reason for updating the reference point is that the use of the spectrum resources by the second system at least partially depends on the use of the spectrum resources by the first system itself. In other words, due to changes in the use of the spectrum resources by the first system itself, the tolerance of the first system to the interference caused by the use of the spectrum resources of the first system by the second system will also change accordingly.

[0081] 3. Steps to determine the second system

[0082] After the reference point is determined, the determined reference point can be published, that is, information about the determined reference point can be published. The information about the determined reference point can be published to the spectrum management device that determines the reference point and other spectrum management devices, and can also be published to a second system managed by the spectrum management device that determines the reference point.

[0083] Here, the spectrum management device that publishes the reference point information is called the reference point information transmitter, and the spectrum management device or the second system that receives the reference point information is called the reference point information receiver. It should be noted that the reference point information transmitter itself can also serve as the reference point information receiver.

[0084] In the example of determining the second system as the second system using the spectrum resources of the first system, the reference point receiving end may recommend the second system to the reference point sending end as a basis for determining the second system using the spectrum resources of the first system (hereinafter also referred to as the second system participating in the spectrum resource allocation). Two exemplary recommendation methods are given below.

[0085] Recommended method 1: Send the information of all second systems that wish to participate in the spectrum allocation of the first system to the reference point information sending end. The information sent may include the parameters of the second system corresponding to the parameters of the reference point, and all information required to be submitted by the second system in order to obtain the spectrum resources of the first system as specified in relevant regulations (such as CEPT, "Draft of ECC report: Technical and operational requirements for the operation of white space devices under geo-location approach", ECC186, January 2013). Among them, the information corresponding to the reference point parameters may include information other than the necessary information required to be submitted by the regulations. This process, for example Figure 4 shown.

[0086] Recommended method 2: The processing of the reference point information receiving end is divided into two steps. First, the basic parameter values ​​of the second system to be recommended based on the reference point information are sent. Then, the feedback information from the reference point information sending end is waited for. If the feedback information indicates that the recommended second system is determined to participate in the spectrum resource allocation, the reference point receiving end sends the information of the selected second system that needs to be submitted according to the regulations to the reference point sending end. This process is as follows Figure 5 Through such a process, the amount of data of the information of the second system sent is saved, thereby reducing the system overhead.

[0087] Optionally, when the reference point information receiving end is a spectrum management device, in the process of recommending the second system, the second system can be recommended based on the proximity between the spectrum usage of each second system and the reference point, the spectrum demand of each second system, or prior knowledge (for example, based on the probability that the managed second system is successfully determined as the second system participating in the spectrum resource allocation after being recommended), etc., instead of recommending all the second systems to the reference point information sending end. This can further reduce the number of second systems submitted and the amount of information interacted, thereby reducing the system burden.

[0088] In addition, if the reference point information receiving end is the second system itself, the second system can decide whether to recommend itself to the reference point information sending end according to its own situation, for example, according to whether the proximity between its own spectrum usage and the reference point is large enough.

[0089] The spectrum management device as the reference point information sending end can determine the second system participating in spectrum resource allocation from among the recommended second systems based on the determined reference point.

[0090] Similarly, in the example of determining the second system as the second system that does not utilize the spectrum resources of the first system, the reference point receiving end can recommend the second system to the reference point transmitting end as a basis for determining the second system that does not utilize the spectrum resources of the first system (hereinafter also referred to as the second system that does not participate in the spectrum resource allocation). In other words, the second system recommended at this time is a second system that does not want to participate in the spectrum resource allocation, for example, because the spectrum usage of such a second system is highly similar to the negative reference point. It should be noted that determining the second system that does not utilize the spectrum resources of the first system usually means that the second system that utilizes the spectrum resources of the first system is also determined.

[0091] From another perspective, determining the second system as the second system that does not utilize the spectrum resources of the first system can also be achieved by determining that the second system that is utilizing the spectrum resources of the first system will release the spectrum resources utilized by it. When specifically determining which spectrum resources utilized by the second system to be released, the second system whose resources are to be released can be determined based on at least one of the proximity between the spectrum utilization of the second system and the negative reference point, the spectrum resources that can be released by the second system, and the service priority of the second system.

[0092] However, the process of publishing the reference point may be omitted, for example, when multiple second systems are managed by one spectrum management device. In this case, the spectrum management device that has determined the reference point may determine the second system that participates in spectrum resource allocation among the second systems it manages.

[0093] An exemplary determination method is to determine a second system whose spectrum usage is higher than a first positive threshold and / or whose spectrum usage is lower than a first negative threshold as the second system participating in spectrum resource allocation. In other words, in the case where the reference point corresponds to a geographical location, the closer the second system is to the positive reference point, the more likely it is to be determined as participating in spectrum resource allocation, and the farther the second system is from the negative reference point, the more likely it is to be determined as participating in spectrum resource allocation. And / or, the second system whose spectrum usage is lower than a second positive threshold and / or whose spectrum usage is higher than a second negative threshold may not be determined as the second system participating in spectrum resource allocation. In addition, the spectrum resources of part of the first system occupied by the second system whose spectrum usage is higher than a second negative threshold may be released. In other words, in the case where the reference point corresponds to a geographical location, the farther the second system is from the positive reference point, the more likely it is to be determined as not participating in spectrum resource allocation, and the closer the second system is to the negative reference point, the more likely it is to be determined as not participating in spectrum resource allocation, and it is even possible to release part of the first system occupied by the second system. The first positive threshold and the second positive threshold here can be appropriately determined by a person skilled in the art, and can be equal to or unequal to each other. Similarly, the first negative threshold and the second negative threshold can be appropriately determined by a person skilled in the art, and can be equal to or unequal to each other.

[0094] Figure 6 A schematic diagram of determining a second system participating in spectrum resource allocation is shown. In the figure, the reference point corresponds to the geographical location. The reference point R of the triangle is the front reference point. A, B, and C represent the geographical locations of the base stations of the second systems A, B, and C, respectively. In addition, a spectrum management device 10 for managing the second systems A, B, and C and three first systems 100-1, 100-2, and 100-3 for providing spectrum resources to the second systems are also shown.

[0095] Assuming that only two second systems need to be selected as the second systems participating in spectrum resource allocation, the second systems A and B closer to the reference point R may be determined as the second systems participating in spectrum resource allocation.

[0096] It should be noted that before making the above determination, A, B, and C may be in any situation of using the spectrum resources of the first system. For example, it is possible that the second systems A, B, and C are not allocated spectrum resources from the first system, or A, B, and C are all allocated spectrum resources from the first system, or only A and C are allocated spectrum resources from the first system.

[0097] After making the above determination, the situation will become that only A and B are being allocated spectrum resources from the first system.

[0098] The above is an example in which there is only one reference point. When there are multiple reference points, assume that the coordinates of the mth reference point are (x m ,y m ), m = 1, 2, ... M, there are M reference points in total (assuming they are all positive reference points). Assume that the position information (x l ,y l ), l=1,2,…,L. For each candidate second system’s geographical location, calculate the spatial correlation coefficient ρ between it and the geographical locations of all reference points l , as shown in formula (1):

[0099]

[0100] The obtained spatial correlation coefficients of the second systems are sorted from large to small, and the first N second systems with the largest correlation coefficients can be selected for spectrum allocation, so that the second systems can make full use of the released or available spectrum resources.

[0101] In addition, different reference points may have different weights. For example, a reference point with higher spectrum utilization efficiency is more important for determining the second system participating in spectrum resource allocation and may have a higher weight.

[0102] In addition, when determining the second system participating in the spectrum resource allocation, other factors other than the reference point may also be used, such as priority. For a second system with a higher priority, such as a second system carrying a service requiring higher communication quality (such as videophone), it is possible that it is still determined as the second system participating in the spectrum resource allocation even though it is far away from the reference point.

[0103] A specific implementation manner is to make the second systems with different priorities have different weights.

[0104] A specific scenario for determining the second system is given below. In this scenario, the spectrum resources of the first system obtained by the second system P with a higher priority are insufficient to meet the service requirements of the second system P, so it is necessary to make another second system Q with a lower priority near the geographical location of the second system P release the spectrum resources of the first system it uses, so that the second system P can obtain more spectrum resources of the first system.

[0105] First, since the spectrum resources of the first system used by the second system P do not meet its service requirements, the geographical location of the second system P is determined as a negative reference point.

[0106] Then, since the second system Q is geographically located close to the negative reference point and has a lower priority, the second system Q is determined as the second system that releases spectrum resources. In other words, the second system Q is no longer determined as the second system that utilizes the spectrum resources of the first system.

[0107] Therefore, the second system Q releases the spectrum resources of the first system that it used. Information related to the release can be provided directly or indirectly to the spectrum management device responsible for spectrum management through the second system Q. Since the second system Q releases the spectrum resources, the geographical location of the second system Q is determined as a positive reference point.

[0108] At this time, since the second system P has a higher priority and is close to the positive reference point, although it is also located at the negative reference point, the second system P can be determined as the second system using the spectrum resources of the first system by setting appropriate weights.

[0109] Assuming that only the second system P is determined as the second system that utilizes the spectrum resources of the first system, it is realized that the second system P receives the spectrum resources of the first system released by the second system Q.

[0110] 4. Determine the steps of the management plan

[0111] Hereinafter, the steps of determining a management plan will be described.

[0112] In fact, the management scheme of the present invention includes at least one of a resource allocation scheme and a resource release scheme. Any existing method can be used to determine the management scheme. Since the number of second systems to be managed has been limited based on the reference point, even if the allocation scheme is determined using the existing method, the system overhead can still be reduced and / or the system performance can be improved because the number of second systems involved in the calculation is reduced.

[0113] Here, a preferred method for determining the allocation scheme will be described in detail. In other words, the allocation scheme for allocating the spectrum resources of the first system to the second system can be determined in the following manner:

[0114] When the number of the at least one second system is greater than 1, all spectrum resources of the first system that can be allocated to the second system are divided into a plurality of unit spectrum resources, and

[0115] The unit spectrum resource is allocated in a predetermined mode to a second system that has not yet reached the upper limit of spectrum use and whose interference to the first system after obtaining the unit spectrum resource does not reach the second interference threshold, until all unit spectrum resources are allocated or there is no second system that has not yet reached the upper limit of spectrum use and whose interference to the first system after obtaining the unit spectrum resource does not reach the second interference threshold. It should be noted that the second interference threshold here can be a threshold appropriately determined by any person skilled in the art according to design requirements or actual circumstances, and can be equal to or not equal to the aforementioned first interference threshold.

[0116] It should be noted that the allocation performed here includes allocating the spectrum resources of the first system to the second system that has not yet used the spectrum resources of the first system, and may also include no longer allocating the spectrum resources of the first system to the second system that is using the spectrum resources of the first system, and may also include adjusting the spectrum resources of the first system used by the second system that is using the spectrum resources of the first system. In other words, all the spectrum resources of the first system that can be used for allocation are reallocated to the second system that is determined to use the spectrum resources of the first system.

[0117] Those skilled in the art should understand that other appropriate allocation unit determination processes may also be performed, for example, adjusting the second system based on the spectrum resources of the first system that have been allocated, or selecting part or all of the second system from the second system that have been allocated the spectrum resources of the first system to release the spectrum resources used by the second system, or a combination of these two processes.

[0118] The predetermined mode referred to herein may be allocating one unit spectrum resource to one second system that meets the above requirements each time, or allocating multiple unit spectrum resources to one second system that meets the above requirements each time. In addition, the predetermined mode referred to herein includes allocating unit spectrum resources to each second system in any predetermined order or random order.

[0119] A preferred way is that when allocating unit spectrum resources to the second system, the allocation is carried out in the order of unit spectrum resource benefits from high to low or the order of spectrum demand of the second system from high to low. The unit spectrum resource benefits here can be defined as at least one of the increase in business volume and economic benefits brought by each unit spectrum obtained by the second system. The spectrum demand of the second system here can be defined as the urgency of the second system's demand for the use of the spectrum resources of the first system. For example, the second system that performs real-time video call services usually has a greater demand for spectrum resources than the second system that performs non-real-time data transmission services. Therefore, the second system that performs real-time video call services can be given a higher priority in being allocated unit spectrum resources.

[0120] The unit spectrum resource efficiency of the second system that meets the requirements can be recalculated after each allocation of unit spectrum resources, or after each round of allocation of unit spectrum resources (that is, after unit spectrum resources have been allocated to all unit spectrum resources that meet the requirements), or the unit spectrum resource efficiency can be calculated only once before the start of allocation of unit spectrum resources and no longer updated thereafter.

[0121] The method is described in more detail below.

[0122] Assume that the unit spectrum resource benefit is b n , n = 1, 2, ... N, corresponding to the determined N second systems. The overall benefit generated by the use of spectrum resources by these second systems can be expressed as:

[0123]

[0124] where c n It is represented by the available spectrum resources allocated to each second system, which can be represented by power, bandwidth or transmission rate. Here, it is assumed that the bandwidth of each second system is w, and the power is determined by the allocation scheme to be determined here. Therefore, the power P is used n represents the available resources. Therefore, the overall benefit can be expressed as:

[0125]

[0126] For each first system, these second systems will generate aggregate interference at the first system, and the interference is most severe at a certain location. The transmission loss from the nth second system to the kth first system at the location with the most severe interference is g_(n,k). Therefore, corresponding to the K first systems, the power allocation of these second systems must satisfy:

[0127]

[0128] Among them, U k It is the upper limit of the maximum interference that the Kth primary system can accommodate in the most severely interfered area.

[0129] If there is no upper limit requirement for the interference to the main system, but it is required to be as small as possible, then (4) can be rewritten as:

[0130]

[0131] Therefore, the power allocation problem can be described as:

[0132]

[0133]

[0134] And P n ≥0 (8)

[0135] Among them, f n (P1,P2,…P N ) represents the spectrum unit efficiency of the nth second system when N second systems have available spectrum. That is, how to maximize the spectrum utilization efficiency of the second system within the interference limit to the first system. (7) can also be replaced by (5). At this time, the optimization problem becomes maximizing the spectrum utilization efficiency of the second system under the premise of minimizing the interference to the first system. If each second system is independent in spectrum utilization, then f n (P1,P2,…P N ) will transform into only P n A function of one variable.

[0136] If the spectrum usage of the various second systems is correlated, then f n (P1,P2,…P N ) means that when there are N-1 second systems and their spectrum resource usage is P1,…,P (n-1) ,P (n+1) ,…,P N , the spectrum resource usage of the nth second system is P n At this time, the spectrum utilization of one second system will affect the spectrum utilization of another second system.

[0137] Assume that the path loss from the second system n to the second system n-1 is q i,j ; i = 1, 2, ... N; j = 1, 2, ..., N; i ≠ j, and assuming that the spectrum efficiency is the signal to interference plus noise ratio, f n (P1,P2,…P N ) can be expressed as:

[0138]

[0139] where σ 2 is the system receiver noise. The above equation can be solved in different ways to obtain the available spectrum resources of each second system.

[0140] Here, the present disclosure provides a simplified algorithm. To simplify the calculation, the solution to this problem can be calculated in a step-by-step manner, that is, the maximum amount of interference that can be accommodated for each first system is first solved, and then the minimum value is found from all the solutions. For the maximum interference that can be accommodated for the kth first system, the power allocation problem is weakened to:

[0141]

[0142]

[0143] And P n ≥0 (12)

[0144] Assume that the power of the second system is capped (Equipment in the communication system cannot use infinite power), set 0 to Divide into L parts, each part is Assuming that the maximum transmission power of all second systems is the same, Pn in the above formula can be expressed as where x n,l ∈{0,1}. The method for solving the above equation is to allocate spectrum resources preferentially to those subsystems that can generate greater spectrum benefits by using unit spectrum and contribute less to aggregate interference. The specific steps are as follows: Figure 7 As shown in the flow chart.

[0145] Figure 7 The spectrum resource allocation process shown in FIG. 7 starts at step S701 and proceeds to step S703.

[0146] At step S703, all second systems that have not reached the upper limit of spectrum usage and will not cause aggregate interference to exceed the upper limit by adding one unit of spectrum resources are selected from the N second systems, and these second systems form a subset of M second systems. Then, the process proceeds to step S705.

[0147] In step S705, it is determined whether M is zero. In other words, it is determined whether the second system mentioned above still exists.

[0148] If the judgment result is yes, the process proceeds to step S723 and ends the process.

[0149] If the result of the judgment is NO, the process proceeds to step S707.

[0150] At step S707 , m is set to 1, and the process proceeds to step S709 .

[0151] At step S709 , it is assumed that one unit spectrum resource is allocated to the mth second system, and the process proceeds to step S711 .

[0152] At step S711, the spectrum resource utilization status of the other N-1 second systems is checked, and the process proceeds to step S713.

[0153] At step S713, the overall spectrum efficiency is calculated according to the relationship between the mth second system and other second systems, and the process proceeds to step S715.

[0154] At step S715, the ratio of the overall spectrum benefit to the interference of the mth second system to the primary system is calculated, and the process proceeds to step S717.

[0155] In step S717, it is determined whether m is equal to M.

[0156] If the judgment result is negative, the process proceeds to step S719.

[0157] At step S719, the value of m is incremented by 1, and the process returns to step S705.

[0158] If the judgment result is negative, the process proceeds to step S721.

[0159] In step S721, for the calculated ratio, a second system with the largest ratio is selected, in other words, a second system with the highest unit spectrum resource efficiency is selected, and a unit spectrum resource is allocated to it, and the process returns to step S703.

[0160] After the second system spectrum allocation calculated for each first system is completed, the minimum value of the available spectrum of each second system is taken as the final allocation result.

[0161] The spectrum management method according to the embodiment of the present disclosure is introduced above. According to such a spectrum management method, the spectrum resources of the first system can be better allocated. It should be noted that the resource allocation scheme of this embodiment can also be independent of the aforementioned determination process of the second system to be managed. In other words, after the object to be allocated is determined by any other existing technology, the resource allocation scheme of this embodiment can be used.

[0162] 5. Configuration of spectrum management device

[0163] The following will be combined Figure 8 The configuration of the spectrum management apparatus according to an embodiment of the present disclosure is described below.

[0164] Figure 8 The spectrum management device 10 in the embodiment includes a reference point determination unit 11, a second system determination unit 12 and an allocation scheme determination unit 13.

[0165] The reference point determination unit 11 determines a reference point, where the reference point includes a set of at least one parameter representing a corresponding spectrum usage of the second system. More specifically, the reference point determination unit 11 may perform the above-mentioned operation of determining the reference point.

[0166] The second system determination unit 12 determines at least one second system as the second system occupying the spectrum resources of the first system based on the determined reference point. More specifically, the second system determination unit 12 can perform the operation of the step of determining the second system described above.

[0167] The allocation scheme determining unit 13 determines an allocation scheme for allocating spectrum resources of the first system to the second system based on the determined second system. More specifically, the allocation scheme determining unit 13 may perform the operation of the step of determining the allocation scheme described above.

[0168] Those skilled in the art should understand that the various functional units of the spectrum management device 10 may be constructed in one housing, or located at different positions, and are merely functionally operably connected to each other.

[0169] Furthermore, the spectrum management apparatus 10 may include only the reference point determination unit 11, and operations corresponding to the operations of the second system determination unit 12 and the allocation scheme determination unit 13 may be performed by other apparatuses.

[0170] The spectrum management apparatus 10 may also include only the second system determination unit 12, and operations corresponding to those of the reference point determination unit 11 and the allocation scheme determination unit 13 may be performed by other apparatuses.

[0171] The spectrum management apparatus 10 may also include only the allocation scheme determination unit 13 , and operations corresponding to those of the reference point determination unit 11 and the second system determination unit 12 may be performed by other apparatuses.

[0172] According to the above spectrum management device, better allocation of spectrum resources of the first system can be achieved.

[0173] 6. Specific application scenarios of the embodiments of the present disclosure

[0174] Many European countries have completed or are in the process of converting from analog to digital television. Many countries are studying how to allow communication systems to use television broadcasting frequency bands without interfering with television broadcasting services. The most widely adopted control method is to use a database. Each country stores the utilization of its digital television spectrum in a management database. When a communication system needs to use the television spectrum in a certain area, the spectrum management device responsible for managing the use of the spectrum in that area calculates the available spectrum resources (for example, described by time, bandwidth, frequency band, transmission power, etc.) of the new communication system based on the spectrum utilization of television broadcasting services stored in the management database and the actual situation of the existing communication systems that are using the television spectrum. Many European countries border each other, and the spectrum utilization of a country may interfere with the television broadcasting systems of other countries. Therefore, neighboring countries need to coordinate when using the spectrum.

[0175] When spectrum owners in multiple countries reach an agreement to charge for the secondary system occupying the spectrum of the primary system, these countries can calculate the spectrum utilization reference point in the boundary area. In this case, spectrum allocation can be based on the principle of maximizing overall economic benefits. n (P1,P2,…P N ) is converted into the fee paid (collected) when using a unit of spectrum resources. Thus, the spectrum owners of the first system (television broadcasting system) in each country can maximize the spectrum use income, and then distribute the benefits according to the agreement between countries.

[0176] like Figure 2As shown, geographic databases X and Y respectively manage the spectrum utilization information of the first system of two countries and calculate the available spectrum resources of the second system according to relevant laws and regulations. The second system spectrum management devices 10-1, 10-2 and 10-3 manage the spectrum utilization of different second systems (such as WiFi networks or LTE cells). These spectrum management devices each receive spectrum usage requirements from the second system. Here, the reference point information sending end is a certain spectrum management device, such as spectrum management device 10-2. The reference point information receiving end is spectrum management devices 10-1 and 10-3. When spectrum management device 10-2 sends reference point information to spectrum management devices 10-1 and 10-3, each spectrum management device provides the second system information (including new second systems and second systems that are using the spectrum resources of the first system but need additional spectrum resources, etc.) and system parameters (transmission template, antenna height, air interface standard, etc.) managed by each spectrum management device to spectrum management device 10-2, and spectrum management device 10-2 determines the second system participating in spectrum allocation and determines the spectrum allocation plan. In addition, spectrum management devices 10-1 and 10-3 can selectively recommend a second system to spectrum management device 10-2 based on prior knowledge and received reference point information to increase the possibility that the recommended second system is successfully determined as the second system participating in spectrum resource allocation.

[0177] Another application scenario is Figure 3 As shown. A spectrum management device 10-4 is responsible for the spectrum allocation of multiple second systems (WiFi networks or LTE cells). After the spectrum management device 10-4 determines the reference point, it sends the reference point information to each second system. Each second system (base station of the second system) is now a reference point information receiving end. After receiving the reference point information, the second system can determine the geographic location and system parameters based on its GPS information, and send this information to the spectrum management device 10-4. The spectrum management device 10-4 determines the second systems participating in the spectrum allocation based on the information provided by the second system, and determines the spectrum resource allocation plan.

[0178] 7. Hardware Configuration Example

[0179] According to the embodiments of the present disclosure, the spectrum management method and spectrum management device can be configured by software, firmware, hardware or any combination thereof. In the case of being implemented by software or firmware ... Fig. 9 The general-purpose machine 900 shown in the figure is installed with the programs constituting the software or firmware. When the various programs are installed, the machine can execute the various functions of the above-mentioned constituent units and sub-units.

[0180] exist Fig. 9In the embodiment of the present invention, a central processing unit (CPU) 901 performs various processes according to a program stored in a read-only memory (ROM) 902 or a program loaded from a storage section 908 to a random access memory (RAM) 903. In the RAM 903, data required when the CPU 901 performs various processes and the like is also stored as needed. The CPU 901, the ROM 902, and the RAM 903 are connected to each other via a bus 904. An input / output interface 905 is also connected to the bus 904.

[0181] The following components are also connected to the input / output interface 905: an input section 906 (including a keyboard, a mouse, etc.), an output section 907 (including a display, such as a cathode ray tube (CRT), a liquid crystal display (LCD), etc., and a speaker, etc.), a storage section 908 (including a hard disk, etc.), a communication section 909 (including a network interface card such as a local area network (LAN) card, a modem, etc.). The communication section 909 performs communication processing via a network such as the Internet. A drive 910 may also be connected to the input / output interface 905 as needed. A removable medium 911 such as a magnetic disk, an optical disk, a magneto-optical disk, a semiconductor memory, etc. may be installed on the drive 910 as needed, so that a computer program read therefrom may be installed in the storage section 908 as needed.

[0182] In the case where the above-described series of processing is implemented by software, a program constituting the software can be installed from a network such as the Internet or from a storage medium such as the removable medium 911 .

[0183] It should be understood by those skilled in the art that such storage media is not limited to Fig. 9 The removable medium 911 shown has the program stored therein and is distributed separately from the device to provide the program to the user. Examples of the removable medium 911 include magnetic disks (including floppy disks), optical disks (including compact disk read-only memory (CD-ROM) and digital versatile disks (DVD)), magneto-optical disks (including minidiscs (MD)), and semiconductor memories. Alternatively, the storage medium may be the ROM 902, a hard disk included in the storage section 908, or the like, in which the program is stored and distributed to the user together with the device containing them.

[0184] In addition, the present disclosure also proposes a program product storing a machine-readable instruction code. When the instruction code is read and executed by a machine, the processing method according to the embodiment of the present invention can be executed. Accordingly, various storage media such as a disk, an optical disk, a magneto-optical disk, a semiconductor memory, etc. for carrying such a program product are also included in the technical solution of the present disclosure.

[0185] In addition, it is obvious that each operation process of the processing method according to the embodiment of the present disclosure can also be implemented in the form of a computer executable program stored in various machine-readable storage media.

[0186] The preferred embodiments of the present disclosure are described above, however, the above description is only for the purpose of illustrating the present disclosure and is not intended to limit the present disclosure. A person of ordinary skill in the art may modify, replace, combine and partially combine the various features in the embodiments of the present disclosure without departing from the scope of the present disclosure. The scope of the present disclosure should be determined by the appended claims.

[0187] In addition, the present disclosure includes but is not limited to the following schemes.

[0188] Solution 1. A spectrum management method for managing spectrum resource utilization of a first system by a second system, wherein the second system has a lower right to use the spectrum of the first system than the first system, the spectrum management method comprising:

[0189] determining a reference point, the reference point comprising at least one parameter representing a corresponding spectrum usage of the second system;

[0190] Based on the reference point, determining at least one second system as a second system occupying spectrum resources of the first system; and

[0191] An allocation scheme for allocating spectrum resources of the first system to the at least one second system is determined.

[0192] Solution 2. The spectrum management method according to Solution 1, wherein:

[0193] The spectrum usage includes at least one of the geographical location, air interface information, antenna height, transmission template and frequency band of the second system.

[0194] Solution 3. The spectrum management method according to Solution 1 or 2, wherein

[0195] The reference point includes at least one of a positive reference point or a negative reference point, wherein the positive reference point corresponds to a spectrum usage situation that is suitable for utilizing the spectrum resources of the first system in terms of at least one parameter included in the positive reference point, and the negative reference point corresponds to a spectrum usage situation that is not suitable for utilizing the spectrum resources of the first system in terms of at least one parameter included in the negative reference point.

[0196] Solution 4. A spectrum management method according to any one of Solutions 1 to 3, wherein

[0197] The reference point is determined by at least one of the following methods:

[0198] Based on the historical record of spectrum usage;

[0199] evaluating at least a portion of spectrum usage of each spectrum usage of the second system;

[0200] Based on the extent to which the spectrum resources of the first system utilized by the second system meet the service requirements of the second system; and

[0201] Based on the information from the second system about the spectrum resources of the first system occupied by the corresponding second system.

[0202] Solution 5. The spectrum management method according to Solution 4, wherein

[0203] When the reference point is determined by evaluating at least a portion of the spectrum usage situations, the spectrum usage situation among the at least a portion of the spectrum usage situations in which the interference to the first system is less than a first interference threshold and in which the most spectrum resources can be allocated to the second system is determined as the reference point.

[0204] Solution 6. The spectrum management method according to Solution 3, wherein

[0205] A spectrum usage situation of the second system in which the spectrum resources of the first system used by the second system do not meet the service demand of the second system is determined as the negative reference point.

[0206] Solution 7. The spectrum management method according to Solution 3, wherein

[0207] The spectrum usage of the second system which releases the spectrum resources occupied by the first system is determined as the positive reference point.

[0208] Solution 8. A spectrum management method according to any one of Solutions 1 to 7, wherein

[0209] The at least one second system is determined based on a degree of similarity between spectrum usage of the second system and the reference point or based on the degree of similarity and a priority of the second system.

[0210] Solution 9. The spectrum management method according to Solution 3, wherein

[0211] A second system whose spectrum usage is similar to the positive reference point to a higher degree than a first positive threshold and / or is similar to the negative reference point to a lower degree than a first negative threshold is determined as the at least one second system.

[0212] Scheme 10. A spectrum management method according to Scheme 3 or 9, wherein a second system whose spectrum usage is less similar to the positive reference point than a second positive threshold and / or whose spectrum usage is more similar to the negative reference point than a second negative threshold is not determined as the at least one second system.

[0213] Scheme 11. A spectrum management method according to Scheme 10, wherein a portion of spectrum resources of the first system occupied by a second system whose spectrum usage is more similar to the negative reference point than a second negative threshold is released.

[0214] Solution 12. The spectrum management method according to any one of Solutions 1 to 11, further comprising:

[0215] publish the reference points identified; and

[0216] The at least one second system is determined based on the reference point according to a second system recommended in response to the published reference point.

[0217] Solution 13. The spectrum management method according to any one of Solutions 1 to 12, wherein:

[0218] An allocation scheme for allocating spectrum resources of the first system to the at least one second system is determined by:

[0219] When the number of the at least one second system is greater than 1, all spectrum resources of the first system that can be allocated to the at least one second system are divided into a plurality of unit spectrum resources,

[0220] The unit spectrum resources are allocated in a predetermined mode to a second system that has not yet reached an upper limit on spectrum usage and whose interference to the first system after obtaining the unit spectrum resources does not reach a second interference threshold, until all unit spectrum resources are allocated or there is no second system that has not yet reached an upper limit on spectrum usage and whose interference to the first system after obtaining the unit spectrum resources does not reach a second interference threshold.

[0221] Solution 14. The spectrum management method according to Solution 13, wherein:

[0222] When allocating unit spectrum resources to the second system, the allocation is performed in the order of unit spectrum resource benefits from high to low or in the order of spectrum requirements of the second system from high to low.

[0223] Solution 15. The spectrum management method according to Solution 14, wherein

[0224] The unit spectrum benefit is at least one of the traffic increase or economic benefit brought by each unit spectrum obtained by the second system.

[0225] Solution 16. A spectrum management method according to any one of Solutions 1 to 15, wherein

[0226] The first system is a broadcast television system, and

[0227] The second system is a wireless local area network system.

[0228] Solution 17. A spectrum management device, used for managing the use of spectrum resources of a first system by a second system, wherein the second system has a lower right to use the spectrum of the first system than the first system, the spectrum management device comprising:

[0229] a reference point determination unit configured to determine a reference point, wherein the reference point includes at least one parameter representing a corresponding spectrum usage of the second system;

[0230] a second system determining unit configured to determine, based on the reference point, at least one second system as a second system occupying spectrum resources of the first system; and

[0231] An allocation scheme determining unit is configured to determine an allocation scheme for allocating spectrum resources of the first system to the at least one second system.

[0232] Solution 18. A spectrum management device, used for managing spectrum resource utilization of a first system by a second system, wherein the second system has a lower right to use the spectrum of the first system than the first system, the spectrum management device comprising:

[0233] A reference point determination unit is configured to determine a reference point, the reference point comprising at least one parameter representing a corresponding spectrum usage of the second system, and wherein

[0234] At least one second system as a second system occupying spectrum resources of the first system is determined based on the reference point, and an allocation scheme of the spectrum resources of the first system to the at least one second system is determined based on the at least one second system.

[0235] Solution 19. A spectrum management device, used to allocate spectrum resources of a first system to a second system, the spectrum management device comprising:

[0236] The second system determination unit is configured to determine at least one second system as a second system occupying spectrum resources of the first system based on the determined reference point, wherein

[0237] The reference point includes at least one parameter indicating a corresponding spectrum usage of the second system, and an allocation scheme of spectrum resources of the first system to the at least one second system is determined based on the at least one second system.

[0238] Solution 20. A spectrum management device, used to allocate spectrum resources of a first system to a second system, the spectrum management device comprising:

[0239] an allocation scheme determining unit configured to determine an allocation scheme for allocating spectrum resources of the first system to at least one second system that is a second system occupying the spectrum resources of the first system, wherein

[0240] The at least one second system is determined based on the determined reference point, and the reference point includes at least one parameter representing a corresponding spectrum usage of the second system.

Claims

1. A device for spectrum management, comprising: The processing circuit is configured to: identifying reference point information for a second system, the reference point information comprising information of at least one parameter representing a corresponding spectrum usage of the second system; and determining spectrum resources for the second system based on whether the reference point information is positive or negative; wherein, when the reference point information is positive, the processing circuit determines that the second system is suitable for utilizing spectrum resources of the first system; Wherein, when the reference point information is negative, the processing circuit determines that the second system is not suitable for utilizing the spectrum resources of the first system.

2. The device according to claim 1, wherein: The second system has a lower priority than the first system for use of the spectrum resources of the first system.

3. The device according to claim 1, wherein: The second system includes a plurality of users.

4. The device according to claim 1, wherein: When the processing circuit determines that the spectrum usage of the second system is more similar to a negative reference point than a second negative threshold, the processing circuit causes the second system to release at least a portion of spectrum resources of the first system currently used by the second system. 5 . The apparatus according to claim 4 , wherein the processing circuit is further configured to: provide reference point information about the second system managed by the apparatus to another apparatus for spectrum management.

6. The apparatus according to claim 5, wherein the reference point information about the second system managed by the apparatus comprises: Information indicating that at least the portion of spectrum resources of the first system currently used by the second system has been released. 7 . The apparatus according to claim 6 , wherein the processing circuit is further configured to: receive, from the another apparatus for spectrum management, information about at least one additional second system managed by the another apparatus for spectrum management.

8. The device according to claim 1, wherein the processing circuit determines that the second system is suitable for utilizing the spectrum resources of the first system when the degree of similarity between the spectrum usage of the second system and a positive reference point is higher than a first positive threshold and / or the degree of similarity between the spectrum usage of the second system and a negative reference point is lower than a first negative threshold, and the processing circuit determines that the second system is not suitable for utilizing the spectrum resources of the first system when the degree of similarity between the spectrum usage of the second system and the positive reference point is lower than a second positive threshold and / or the degree of similarity between the spectrum usage of the second system and the negative reference point is higher than a second negative threshold.

9. The device according to claim 7, wherein: The second system is adapted to utilize spectrum resources of the first system when the further second system is in the geographical vicinity of the second system, has a lower priority in spectrum resource allocation than the second system and has spectrum resources of the first system available for the second system.

10. The apparatus according to claim 1, wherein the reference point information comprises at least one of location information and frequency band information of the second system.

11. The device according to claim 7, wherein: When the further second system is in the geographical vicinity of the second system, has a higher priority in spectrum resource allocation than the second system and requires spectrum resources, the second system is not suitable for utilizing the spectrum resources of the first system.

12. The device according to claim 1, wherein: When the processing circuit determines that a plurality of second systems can be allocated spectrum resources, the processing circuit further determines the spectrum resources for each second system of the plurality of second systems based on interference to other first systems.

13. The apparatus according to claim 12, wherein the processing circuit further determines the spectrum resource for each of the plurality of second systems based on the interference to the other first systems and the degree of demand for the spectrum resource, wherein: When allocating unit spectrum resources to the plurality of second systems, the allocation is performed in descending order of the spectrum resource requirements of the plurality of second systems.

14. The apparatus of claim 1, wherein the spectrum resource is a television spectrum resource, and the second system is a communication system that is not authorized to use the television spectrum resource.

15. The device of claim 1, wherein the device manages the second system.

16. The device of claim 1, wherein the reference point information is received from another device.

17. An apparatus for spectrum management, comprising: The processing circuit is configured to: sending reference point information for a second system to another apparatus for spectrum management, the reference point information comprising information of at least one parameter indicating a corresponding spectrum usage situation of the second system; and receiving, from the other device, information and system parameters of a second system managed by the other device; The case where the reference point information is positive indicates that the second system is suitable for utilizing the spectrum resources of the first system, and the case where the reference point information is negative indicates that the second system is not suitable for utilizing the resources of the first system.

18. A spectrum management method, comprising: identifying, by a processing circuit of the apparatus for spectrum management, reference point information for a second system, the reference point information comprising information of at least one parameter representing a corresponding spectrum usage of the second system; and determining spectrum resources for the second system based on whether the reference point information is positive or negative; wherein, when the reference point information is positive, determining that the second system is suitable for utilizing spectrum resources of the first system; When the reference point information is negative, it is determined that the second system is not suitable for utilizing spectrum resources of the first system.

19. A storage medium having computer readable instructions encoded thereon which, when executed by a processor, cause the processor to: identifying reference point information for a second system, the reference point information comprising information of at least one parameter representing a corresponding spectrum usage of the second system; and determining spectrum resources for the second system based on whether the reference point information is positive or negative; in, When the reference point information is positive, determining that the second system is suitable for utilizing spectrum resources of the first system; When the reference point information is negative, it is determined that the second system is not suitable for utilizing spectrum resources of the first system.

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